Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix possible mismatch of sufile counters on recovery
nilfs2: segment usage file cleanups
nilfs2: fix wrong accounting and duplicate brelse in nilfs_sufile_set_error
nilfs2: simplify handling of active state of segments fix
nilfs2: remove module version
nilfs2: fix lockdep recursive locking warning on meta data files
nilfs2: fix lockdep recursive locking warning on bmap
nilfs2: return f_fsid for statfs2
diff --git a/Documentation/ABI/testing/debugfs-pktcdvd b/Documentation/ABI/testing/debugfs-pktcdvd
index bf9c16b..cf11736 100644
--- a/Documentation/ABI/testing/debugfs-pktcdvd
+++ b/Documentation/ABI/testing/debugfs-pktcdvd
@@ -1,4 +1,4 @@
-What: /debug/pktcdvd/pktcdvd[0-7]
+What: /sys/kernel/debug/pktcdvd/pktcdvd[0-7]
Date: Oct. 2006
KernelVersion: 2.6.20
Contact: Thomas Maier <balagi@justmail.de>
@@ -10,10 +10,10 @@
The pktcdvd module (packet writing driver) creates
these files in debugfs:
-/debug/pktcdvd/pktcdvd[0-7]/
+/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
info (0444) Lots of driver statistics and infos.
Example:
-------
-cat /debug/pktcdvd/pktcdvd0/info
+cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index a3a83d3..8918a32 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -31,7 +31,7 @@
###
# The targets that may be used.
-PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
xmldocs: $(BOOKS)
@@ -213,11 +213,12 @@
dochelp:
@echo ' Linux kernel internal documentation in different formats:'
@echo ' htmldocs - HTML'
- @echo ' installmandocs - install man pages generated by mandocs'
- @echo ' mandocs - man pages'
@echo ' pdfdocs - PDF'
@echo ' psdocs - Postscript'
@echo ' xmldocs - XML DocBook'
+ @echo ' mandocs - man pages'
+ @echo ' installmandocs - install man pages generated by mandocs'
+ @echo ' cleandocs - clean all generated DocBook files'
###
# Temporary files left by various tools
@@ -235,6 +236,10 @@
clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
+cleandocs:
+ $(Q)rm -f $(call objectify, $(clean-files))
+ $(Q)rm -rf $(call objectify, $(clean-dirs))
+
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable se we can use it in if_changed and friends.
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index a98a7fe..1a60887 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -6,15 +6,14 @@
Salient features
-a. Enable control of both RSS (mapped) and Page Cache (unmapped) pages
+a. Enable control of Anonymous, Page Cache (mapped and unmapped) and
+ Swap Cache memory pages.
b. The infrastructure allows easy addition of other types of memory to control
c. Provides *zero overhead* for non memory controller users
d. Provides a double LRU: global memory pressure causes reclaim from the
global LRU; a cgroup on hitting a limit, reclaims from the per
cgroup LRU
-NOTE: Swap Cache (unmapped) is not accounted now.
-
Benefits and Purpose of the memory controller
The memory controller isolates the memory behaviour of a group of tasks
@@ -290,34 +289,44 @@
moved to the parent. If you want to avoid that, force_empty will be useful.
5.2 stat file
- memory.stat file includes following statistics (now)
- cache - # of pages from page-cache and shmem.
- rss - # of pages from anonymous memory.
- pgpgin - # of event of charging
- pgpgout - # of event of uncharging
- active_anon - # of pages on active lru of anon, shmem.
- inactive_anon - # of pages on active lru of anon, shmem
- active_file - # of pages on active lru of file-cache
- inactive_file - # of pages on inactive lru of file cache
- unevictable - # of pages cannot be reclaimed.(mlocked etc)
- Below is depend on CONFIG_DEBUG_VM.
- inactive_ratio - VM internal parameter. (see mm/page_alloc.c)
- recent_rotated_anon - VM internal parameter. (see mm/vmscan.c)
- recent_rotated_file - VM internal parameter. (see mm/vmscan.c)
- recent_scanned_anon - VM internal parameter. (see mm/vmscan.c)
- recent_scanned_file - VM internal parameter. (see mm/vmscan.c)
+memory.stat file includes following statistics
- Memo:
+cache - # of bytes of page cache memory.
+rss - # of bytes of anonymous and swap cache memory.
+pgpgin - # of pages paged in (equivalent to # of charging events).
+pgpgout - # of pages paged out (equivalent to # of uncharging events).
+active_anon - # of bytes of anonymous and swap cache memory on active
+ lru list.
+inactive_anon - # of bytes of anonymous memory and swap cache memory on
+ inactive lru list.
+active_file - # of bytes of file-backed memory on active lru list.
+inactive_file - # of bytes of file-backed memory on inactive lru list.
+unevictable - # of bytes of memory that cannot be reclaimed (mlocked etc).
+
+The following additional stats are dependent on CONFIG_DEBUG_VM.
+
+inactive_ratio - VM internal parameter. (see mm/page_alloc.c)
+recent_rotated_anon - VM internal parameter. (see mm/vmscan.c)
+recent_rotated_file - VM internal parameter. (see mm/vmscan.c)
+recent_scanned_anon - VM internal parameter. (see mm/vmscan.c)
+recent_scanned_file - VM internal parameter. (see mm/vmscan.c)
+
+Memo:
recent_rotated means recent frequency of lru rotation.
recent_scanned means recent # of scans to lru.
showing for better debug please see the code for meanings.
+Note:
+ Only anonymous and swap cache memory is listed as part of 'rss' stat.
+ This should not be confused with the true 'resident set size' or the
+ amount of physical memory used by the cgroup. Per-cgroup rss
+ accounting is not done yet.
5.3 swappiness
Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
- Following cgroup's swapiness can't be changed.
+ Following cgroups' swapiness can't be changed.
- root cgroup (uses /proc/sys/vm/swappiness).
- a cgroup which uses hierarchy and it has child cgroup.
- a cgroup which uses hierarchy and not the root of hierarchy.
diff --git a/Documentation/cgroups/resource_counter.txt b/Documentation/cgroups/resource_counter.txt
index f196ac1..95b24d7 100644
--- a/Documentation/cgroups/resource_counter.txt
+++ b/Documentation/cgroups/resource_counter.txt
@@ -47,13 +47,18 @@
2. Basic accounting routines
- a. void res_counter_init(struct res_counter *rc)
+ a. void res_counter_init(struct res_counter *rc,
+ struct res_counter *rc_parent)
Initializes the resource counter. As usual, should be the first
routine called for a new counter.
- b. int res_counter_charge[_locked]
- (struct res_counter *rc, unsigned long val)
+ The struct res_counter *parent can be used to define a hierarchical
+ child -> parent relationship directly in the res_counter structure,
+ NULL can be used to define no relationship.
+
+ c. int res_counter_charge(struct res_counter *rc, unsigned long val,
+ struct res_counter **limit_fail_at)
When a resource is about to be allocated it has to be accounted
with the appropriate resource counter (controller should determine
@@ -67,15 +72,25 @@
* if the charging is performed first, then it should be uncharged
on error path (if the one is called).
- c. void res_counter_uncharge[_locked]
+ If the charging fails and a hierarchical dependency exists, the
+ limit_fail_at parameter is set to the particular res_counter element
+ where the charging failed.
+
+ d. int res_counter_charge_locked
+ (struct res_counter *rc, unsigned long val)
+
+ The same as res_counter_charge(), but it must not acquire/release the
+ res_counter->lock internally (it must be called with res_counter->lock
+ held).
+
+ e. void res_counter_uncharge[_locked]
(struct res_counter *rc, unsigned long val)
When a resource is released (freed) it should be de-accounted
from the resource counter it was accounted to. This is called
"uncharging".
- The _locked routines imply that the res_counter->lock is taken.
-
+ The _locked routines imply that the res_counter->lock is taken.
2.1 Other accounting routines
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 7e2af10..de491a3 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -428,3 +428,12 @@
After a reasonable transition period, we will remove the legacy
fakephp interface.
Who: Alex Chiang <achiang@hp.com>
+
+---------------------------
+
+What: i2c-voodoo3 driver
+When: October 2009
+Why: Superseded by tdfxfb. I2C/DDC support used to live in a separate
+ driver but this caused driver conflicts.
+Who: Jean Delvare <khali@linux-fr.org>
+ Krzysztof Helt <krzysztof.h1@wp.pl>
diff --git a/Documentation/input/rotary-encoder.txt b/Documentation/input/rotary-encoder.txt
new file mode 100644
index 0000000..435102a
--- /dev/null
+++ b/Documentation/input/rotary-encoder.txt
@@ -0,0 +1,101 @@
+rotary-encoder - a generic driver for GPIO connected devices
+Daniel Mack <daniel@caiaq.de>, Feb 2009
+
+0. Function
+-----------
+
+Rotary encoders are devices which are connected to the CPU or other
+peripherals with two wires. The outputs are phase-shifted by 90 degrees
+and by triggering on falling and rising edges, the turn direction can
+be determined.
+
+The phase diagram of these two outputs look like this:
+
+ _____ _____ _____
+ | | | | | |
+ Channel A ____| |_____| |_____| |____
+
+ : : : : : : : : : : : :
+ __ _____ _____ _____
+ | | | | | | |
+ Channel B |_____| |_____| |_____| |__
+
+ : : : : : : : : : : : :
+ Event a b c d a b c d a b c d
+
+ |<-------->|
+ one step
+
+
+For more information, please see
+ http://en.wikipedia.org/wiki/Rotary_encoder
+
+
+1. Events / state machine
+-------------------------
+
+a) Rising edge on channel A, channel B in low state
+ This state is used to recognize a clockwise turn
+
+b) Rising edge on channel B, channel A in high state
+ When entering this state, the encoder is put into 'armed' state,
+ meaning that there it has seen half the way of a one-step transition.
+
+c) Falling edge on channel A, channel B in high state
+ This state is used to recognize a counter-clockwise turn
+
+d) Falling edge on channel B, channel A in low state
+ Parking position. If the encoder enters this state, a full transition
+ should have happend, unless it flipped back on half the way. The
+ 'armed' state tells us about that.
+
+2. Platform requirements
+------------------------
+
+As there is no hardware dependent call in this driver, the platform it is
+used with must support gpiolib. Another requirement is that IRQs must be
+able to fire on both edges.
+
+
+3. Board integration
+--------------------
+
+To use this driver in your system, register a platform_device with the
+name 'rotary-encoder' and associate the IRQs and some specific platform
+data with it.
+
+struct rotary_encoder_platform_data is declared in
+include/linux/rotary-encoder.h and needs to be filled with the number of
+steps the encoder has and can carry information about externally inverted
+signals (because of used invertig buffer or other reasons).
+
+Because GPIO to IRQ mapping is platform specific, this information must
+be given in seperately to the driver. See the example below.
+
+---------<snip>---------
+
+/* board support file example */
+
+#include <linux/input.h>
+#include <linux/rotary_encoder.h>
+
+#define GPIO_ROTARY_A 1
+#define GPIO_ROTARY_B 2
+
+static struct rotary_encoder_platform_data my_rotary_encoder_info = {
+ .steps = 24,
+ .axis = ABS_X,
+ .gpio_a = GPIO_ROTARY_A,
+ .gpio_b = GPIO_ROTARY_B,
+ .inverted_a = 0,
+ .inverted_b = 0,
+};
+
+static struct platform_device rotary_encoder_device = {
+ .name = "rotary-encoder",
+ .id = 0,
+ .dev = {
+ .platform_data = &my_rotary_encoder_info,
+ }
+};
+
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 51104f9..d4b0567 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -40,10 +40,16 @@
--- 6.7 Custom kbuild commands
--- 6.8 Preprocessing linker scripts
- === 7 Kbuild Variables
- === 8 Makefile language
- === 9 Credits
- === 10 TODO
+ === 7 Kbuild syntax for exported headers
+ --- 7.1 header-y
+ --- 7.2 objhdr-y
+ --- 7.3 destination-y
+ --- 7.4 unifdef-y (deprecated)
+
+ === 8 Kbuild Variables
+ === 9 Makefile language
+ === 10 Credits
+ === 11 TODO
=== 1 Overview
@@ -1143,8 +1149,69 @@
The kbuild infrastructure for *lds file are used in several
architecture-specific files.
+=== 7 Kbuild syntax for exported headers
-=== 7 Kbuild Variables
+The kernel include a set of headers that is exported to userspace.
+Many headers can be exported as-is but other headers requires a
+minimal pre-processing before they are ready for user-space.
+The pre-processing does:
+- drop kernel specific annotations
+- drop include of compiler.h
+- drop all sections that is kernel internat (guarded by ifdef __KERNEL__)
+
+Each relevant directory contain a file name "Kbuild" which specify the
+headers to be exported.
+See subsequent chapter for the syntax of the Kbuild file.
+
+ --- 7.1 header-y
+
+ header-y specify header files to be exported.
+
+ Example:
+ #include/linux/Kbuild
+ header-y += usb/
+ header-y += aio_abi.h
+
+ The convention is to list one file per line and
+ preferably in alphabetic order.
+
+ header-y also specify which subdirectories to visit.
+ A subdirectory is identified by a trailing '/' which
+ can be seen in the example above for the usb subdirectory.
+
+ Subdirectories are visited before their parent directories.
+
+ --- 7.2 objhdr-y
+
+ objhdr-y specifies generated files to be exported.
+ Generated files are special as they need to be looked
+ up in another directory when doing 'make O=...' builds.
+
+ Example:
+ #include/linux/Kbuild
+ objhdr-y += version.h
+
+ --- 7.3 destination-y
+
+ When an architecture have a set of exported headers that needs to be
+ exported to a different directory destination-y is used.
+ destination-y specify the destination directory for all exported
+ headers in the file where it is present.
+
+ Example:
+ #arch/xtensa/platforms/s6105/include/platform/Kbuild
+ destination-y := include/linux
+
+ In the example above all exported headers in the Kbuild file
+ will be located in the directory "include/linux" when exported.
+
+
+ --- 7.4 unifdef-y (deprecated)
+
+ unifdef-y is deprecated. A direct replacement is header-y.
+
+
+=== 8 Kbuild Variables
The top Makefile exports the following variables:
@@ -1206,7 +1273,7 @@
INSTALL_MOD_STRIP will used as the option(s) to the strip command.
-=== 8 Makefile language
+=== 9 Makefile language
The kernel Makefiles are designed to be run with GNU Make. The Makefiles
use only the documented features of GNU Make, but they do use many
@@ -1225,14 +1292,14 @@
There are some cases where "=" is appropriate. Usually, though, ":="
is the right choice.
-=== 9 Credits
+=== 10 Credits
Original version made by Michael Elizabeth Chastain, <mailto:mec@shout.net>
Updates by Kai Germaschewski <kai@tp1.ruhr-uni-bochum.de>
Updates by Sam Ravnborg <sam@ravnborg.org>
Language QA by Jan Engelhardt <jengelh@gmx.de>
-=== 10 TODO
+=== 11 TODO
- Describe how kbuild supports shipped files with _shipped.
- Generating offset header files.
diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt
index 42f43fa..34c76a5 100644
--- a/Documentation/sparse.txt
+++ b/Documentation/sparse.txt
@@ -42,6 +42,14 @@
vs cpu-endian vs whatever), and there the constant "0" really _is_
special.
+__bitwise__ - to be used for relatively compact stuff (gfp_t, etc.) that
+is mostly warning-free and is supposed to stay that way. Warnings will
+be generated without __CHECK_ENDIAN__.
+
+__bitwise - noisy stuff; in particular, __le*/__be* are that. We really
+don't want to drown in noise unless we'd explicitly asked for it.
+
+
Getting sparse
~~~~~~~~~~~~~~
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index a34d55b..df38ef0 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -95,7 +95,7 @@
There is only one file in this directory.
unix_dgram_qlen limits the max number of datagrams queued in Unix domain
-socket's buffer. It will not take effect unless PF_UNIX flag is spicified.
+socket's buffer. It will not take effect unless PF_UNIX flag is specified.
3. /proc/sys/net/ipv4 - IPV4 settings
diff --git a/Documentation/tomoyo.txt b/Documentation/tomoyo.txt
new file mode 100644
index 0000000..b3a232c
--- /dev/null
+++ b/Documentation/tomoyo.txt
@@ -0,0 +1,55 @@
+--- What is TOMOYO? ---
+
+TOMOYO is a name-based MAC extension (LSM module) for the Linux kernel.
+
+LiveCD-based tutorials are available at
+http://tomoyo.sourceforge.jp/en/1.6.x/1st-step/ubuntu8.04-live/
+http://tomoyo.sourceforge.jp/en/1.6.x/1st-step/centos5-live/ .
+Though these tutorials use non-LSM version of TOMOYO, they are useful for you
+to know what TOMOYO is.
+
+--- How to enable TOMOYO? ---
+
+Build the kernel with CONFIG_SECURITY_TOMOYO=y and pass "security=tomoyo" on
+kernel's command line.
+
+Please see http://tomoyo.sourceforge.jp/en/2.2.x/ for details.
+
+--- Where is documentation? ---
+
+User <-> Kernel interface documentation is available at
+http://tomoyo.sourceforge.jp/en/2.2.x/policy-reference.html .
+
+Materials we prepared for seminars and symposiums are available at
+http://sourceforge.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
+Below lists are chosen from three aspects.
+
+What is TOMOYO?
+ TOMOYO Linux Overview
+ http://sourceforge.jp/projects/tomoyo/docs/lca2009-takeda.pdf
+ TOMOYO Linux: pragmatic and manageable security for Linux
+ http://sourceforge.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
+ TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
+ http://sourceforge.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
+
+What can TOMOYO do?
+ Deep inside TOMOYO Linux
+ http://sourceforge.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
+ The role of "pathname based access control" in security.
+ http://sourceforge.jp/projects/tomoyo/docs/lfj2008-bof.pdf
+
+History of TOMOYO?
+ Realities of Mainlining
+ http://sourceforge.jp/projects/tomoyo/docs/lfj2008.pdf
+
+--- What is future plan? ---
+
+We believe that inode based security and name based security are complementary
+and both should be used together. But unfortunately, so far, we cannot enable
+multiple LSM modules at the same time. We feel sorry that you have to give up
+SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
+
+We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
+version of TOMOYO, available at http://tomoyo.sourceforge.jp/en/1.6.x/ .
+LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
+to port non-LSM version's functionalities to LSM versions.
diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
index 2131b00..2f77ced 100644
--- a/Documentation/vm/00-INDEX
+++ b/Documentation/vm/00-INDEX
@@ -1,5 +1,7 @@
00-INDEX
- this file.
+active_mm.txt
+ - An explanation from Linus about tsk->active_mm vs tsk->mm.
balance
- various information on memory balancing.
hugetlbpage.txt
diff --git a/Documentation/vm/active_mm.txt b/Documentation/vm/active_mm.txt
new file mode 100644
index 0000000..4ee1f64
--- /dev/null
+++ b/Documentation/vm/active_mm.txt
@@ -0,0 +1,83 @@
+List: linux-kernel
+Subject: Re: active_mm
+From: Linus Torvalds <torvalds () transmeta ! com>
+Date: 1999-07-30 21:36:24
+
+Cc'd to linux-kernel, because I don't write explanations all that often,
+and when I do I feel better about more people reading them.
+
+On Fri, 30 Jul 1999, David Mosberger wrote:
+>
+> Is there a brief description someplace on how "mm" vs. "active_mm" in
+> the task_struct are supposed to be used? (My apologies if this was
+> discussed on the mailing lists---I just returned from vacation and
+> wasn't able to follow linux-kernel for a while).
+
+Basically, the new setup is:
+
+ - we have "real address spaces" and "anonymous address spaces". The
+ difference is that an anonymous address space doesn't care about the
+ user-level page tables at all, so when we do a context switch into an
+ anonymous address space we just leave the previous address space
+ active.
+
+ The obvious use for a "anonymous address space" is any thread that
+ doesn't need any user mappings - all kernel threads basically fall into
+ this category, but even "real" threads can temporarily say that for
+ some amount of time they are not going to be interested in user space,
+ and that the scheduler might as well try to avoid wasting time on
+ switching the VM state around. Currently only the old-style bdflush
+ sync does that.
+
+ - "tsk->mm" points to the "real address space". For an anonymous process,
+ tsk->mm will be NULL, for the logical reason that an anonymous process
+ really doesn't _have_ a real address space at all.
+
+ - however, we obviously need to keep track of which address space we
+ "stole" for such an anonymous user. For that, we have "tsk->active_mm",
+ which shows what the currently active address space is.
+
+ The rule is that for a process with a real address space (ie tsk->mm is
+ non-NULL) the active_mm obviously always has to be the same as the real
+ one.
+
+ For a anonymous process, tsk->mm == NULL, and tsk->active_mm is the
+ "borrowed" mm while the anonymous process is running. When the
+ anonymous process gets scheduled away, the borrowed address space is
+ returned and cleared.
+
+To support all that, the "struct mm_struct" now has two counters: a
+"mm_users" counter that is how many "real address space users" there are,
+and a "mm_count" counter that is the number of "lazy" users (ie anonymous
+users) plus one if there are any real users.
+
+Usually there is at least one real user, but it could be that the real
+user exited on another CPU while a lazy user was still active, so you do
+actually get cases where you have a address space that is _only_ used by
+lazy users. That is often a short-lived state, because once that thread
+gets scheduled away in favour of a real thread, the "zombie" mm gets
+released because "mm_users" becomes zero.
+
+Also, a new rule is that _nobody_ ever has "init_mm" as a real MM any
+more. "init_mm" should be considered just a "lazy context when no other
+context is available", and in fact it is mainly used just at bootup when
+no real VM has yet been created. So code that used to check
+
+ if (current->mm == &init_mm)
+
+should generally just do
+
+ if (!current->mm)
+
+instead (which makes more sense anyway - the test is basically one of "do
+we have a user context", and is generally done by the page fault handler
+and things like that).
+
+Anyway, I put a pre-patch-2.3.13-1 on ftp.kernel.org just a moment ago,
+because it slightly changes the interfaces to accomodate the alpha (who
+would have thought it, but the alpha actually ends up having one of the
+ugliest context switch codes - unlike the other architectures where the MM
+and register state is separate, the alpha PALcode joins the two, and you
+need to switch both together).
+
+(From http://marc.info/?l=linux-kernel&m=93337278602211&w=2)
diff --git a/Documentation/vm/unevictable-lru.txt b/Documentation/vm/unevictable-lru.txt
index 0706a72..2d70d0d 100644
--- a/Documentation/vm/unevictable-lru.txt
+++ b/Documentation/vm/unevictable-lru.txt
@@ -1,588 +1,691 @@
+ ==============================
+ UNEVICTABLE LRU INFRASTRUCTURE
+ ==============================
-This document describes the Linux memory management "Unevictable LRU"
-infrastructure and the use of this infrastructure to manage several types
-of "unevictable" pages. The document attempts to provide the overall
-rationale behind this mechanism and the rationale for some of the design
-decisions that drove the implementation. The latter design rationale is
-discussed in the context of an implementation description. Admittedly, one
-can obtain the implementation details--the "what does it do?"--by reading the
-code. One hopes that the descriptions below add value by provide the answer
-to "why does it do that?".
+========
+CONTENTS
+========
-Unevictable LRU Infrastructure:
+ (*) The Unevictable LRU
-The Unevictable LRU adds an additional LRU list to track unevictable pages
-and to hide these pages from vmscan. This mechanism is based on a patch by
-Larry Woodman of Red Hat to address several scalability problems with page
+ - The unevictable page list.
+ - Memory control group interaction.
+ - Marking address spaces unevictable.
+ - Detecting Unevictable Pages.
+ - vmscan's handling of unevictable pages.
+
+ (*) mlock()'d pages.
+
+ - History.
+ - Basic management.
+ - mlock()/mlockall() system call handling.
+ - Filtering special vmas.
+ - munlock()/munlockall() system call handling.
+ - Migrating mlocked pages.
+ - mmap(MAP_LOCKED) system call handling.
+ - munmap()/exit()/exec() system call handling.
+ - try_to_unmap().
+ - try_to_munlock() reverse map scan.
+ - Page reclaim in shrink_*_list().
+
+
+============
+INTRODUCTION
+============
+
+This document describes the Linux memory manager's "Unevictable LRU"
+infrastructure and the use of this to manage several types of "unevictable"
+pages.
+
+The document attempts to provide the overall rationale behind this mechanism
+and the rationale for some of the design decisions that drove the
+implementation. The latter design rationale is discussed in the context of an
+implementation description. Admittedly, one can obtain the implementation
+details - the "what does it do?" - by reading the code. One hopes that the
+descriptions below add value by provide the answer to "why does it do that?".
+
+
+===================
+THE UNEVICTABLE LRU
+===================
+
+The Unevictable LRU facility adds an additional LRU list to track unevictable
+pages and to hide these pages from vmscan. This mechanism is based on a patch
+by Larry Woodman of Red Hat to address several scalability problems with page
reclaim in Linux. The problems have been observed at customer sites on large
-memory x86_64 systems. For example, a non-numal x86_64 platform with 128GB
-of main memory will have over 32 million 4k pages in a single zone. When a
-large fraction of these pages are not evictable for any reason [see below],
-vmscan will spend a lot of time scanning the LRU lists looking for the small
-fraction of pages that are evictable. This can result in a situation where
-all cpus are spending 100% of their time in vmscan for hours or days on end,
-with the system completely unresponsive.
+memory x86_64 systems.
-The Unevictable LRU infrastructure addresses the following classes of
-unevictable pages:
+To illustrate this with an example, a non-NUMA x86_64 platform with 128GB of
+main memory will have over 32 million 4k pages in a single zone. When a large
+fraction of these pages are not evictable for any reason [see below], vmscan
+will spend a lot of time scanning the LRU lists looking for the small fraction
+of pages that are evictable. This can result in a situation where all CPUs are
+spending 100% of their time in vmscan for hours or days on end, with the system
+completely unresponsive.
-+ page owned by ramfs
-+ page mapped into SHM_LOCKed shared memory regions
-+ page mapped into VM_LOCKED [mlock()ed] vmas
+The unevictable list addresses the following classes of unevictable pages:
-The infrastructure might be able to handle other conditions that make pages
+ (*) Those owned by ramfs.
+
+ (*) Those mapped into SHM_LOCK'd shared memory regions.
+
+ (*) Those mapped into VM_LOCKED [mlock()ed] VMAs.
+
+The infrastructure may also be able to handle other conditions that make pages
unevictable, either by definition or by circumstance, in the future.
-The Unevictable LRU List
+THE UNEVICTABLE PAGE LIST
+-------------------------
The Unevictable LRU infrastructure consists of an additional, per-zone, LRU list
called the "unevictable" list and an associated page flag, PG_unevictable, to
-indicate that the page is being managed on the unevictable list. The
-PG_unevictable flag is analogous to, and mutually exclusive with, the PG_active
-flag in that it indicates on which LRU list a page resides when PG_lru is set.
-The unevictable LRU list is source configurable based on the UNEVICTABLE_LRU
-Kconfig option.
+indicate that the page is being managed on the unevictable list.
+
+The PG_unevictable flag is analogous to, and mutually exclusive with, the
+PG_active flag in that it indicates on which LRU list a page resides when
+PG_lru is set. The unevictable list is compile-time configurable based on the
+UNEVICTABLE_LRU Kconfig option.
The Unevictable LRU infrastructure maintains unevictable pages on an additional
LRU list for a few reasons:
-1) We get to "treat unevictable pages just like we treat other pages in the
- system, which means we get to use the same code to manipulate them, the
- same code to isolate them (for migrate, etc.), the same code to keep track
- of the statistics, etc..." [Rik van Riel]
+ (1) We get to "treat unevictable pages just like we treat other pages in the
+ system - which means we get to use the same code to manipulate them, the
+ same code to isolate them (for migrate, etc.), the same code to keep track
+ of the statistics, etc..." [Rik van Riel]
-2) We want to be able to migrate unevictable pages between nodes--for memory
- defragmentation, workload management and memory hotplug. The linux kernel
- can only migrate pages that it can successfully isolate from the lru lists.
- If we were to maintain pages elsewise than on an lru-like list, where they
- can be found by isolate_lru_page(), we would prevent their migration, unless
- we reworked migration code to find the unevictable pages.
+ (2) We want to be able to migrate unevictable pages between nodes for memory
+ defragmentation, workload management and memory hotplug. The linux kernel
+ can only migrate pages that it can successfully isolate from the LRU
+ lists. If we were to maintain pages elsewhere than on an LRU-like list,
+ where they can be found by isolate_lru_page(), we would prevent their
+ migration, unless we reworked migration code to find the unevictable pages
+ itself.
-The unevictable LRU list does not differentiate between file backed and swap
-backed [anon] pages. This differentiation is only important while the pages
-are, in fact, evictable.
+The unevictable list does not differentiate between file-backed and anonymous,
+swap-backed pages. This differentiation is only important while the pages are,
+in fact, evictable.
-The unevictable LRU list benefits from the "arrayification" of the per-zone
-LRU lists and statistics originally proposed and posted by Christoph Lameter.
+The unevictable list benefits from the "arrayification" of the per-zone LRU
+lists and statistics originally proposed and posted by Christoph Lameter.
-The unevictable list does not use the lru pagevec mechanism. Rather,
-unevictable pages are placed directly on the page's zone's unevictable
-list under the zone lru_lock. The reason for this is to prevent stranding
-of pages on the unevictable list when one task has the page isolated from the
-lru and other tasks are changing the "evictability" state of the page.
+The unevictable list does not use the LRU pagevec mechanism. Rather,
+unevictable pages are placed directly on the page's zone's unevictable list
+under the zone lru_lock. This allows us to prevent the stranding of pages on
+the unevictable list when one task has the page isolated from the LRU and other
+tasks are changing the "evictability" state of the page.
-Unevictable LRU and Memory Controller Interaction
+MEMORY CONTROL GROUP INTERACTION
+--------------------------------
-The memory controller data structure automatically gets a per zone unevictable
-lru list as a result of the "arrayification" of the per-zone LRU lists. The
-memory controller tracks the movement of pages to and from the unevictable list.
+The unevictable LRU facility interacts with the memory control group [aka
+memory controller; see Documentation/cgroups/memory.txt] by extending the
+lru_list enum.
+
+The memory controller data structure automatically gets a per-zone unevictable
+list as a result of the "arrayification" of the per-zone LRU lists (one per
+lru_list enum element). The memory controller tracks the movement of pages to
+and from the unevictable list.
+
When a memory control group comes under memory pressure, the controller will
not attempt to reclaim pages on the unevictable list. This has a couple of
-effects. Because the pages are "hidden" from reclaim on the unevictable list,
-the reclaim process can be more efficient, dealing only with pages that have
-a chance of being reclaimed. On the other hand, if too many of the pages
-charged to the control group are unevictable, the evictable portion of the
-working set of the tasks in the control group may not fit into the available
-memory. This can cause the control group to thrash or to oom-kill tasks.
+effects:
+
+ (1) Because the pages are "hidden" from reclaim on the unevictable list, the
+ reclaim process can be more efficient, dealing only with pages that have a
+ chance of being reclaimed.
+
+ (2) On the other hand, if too many of the pages charged to the control group
+ are unevictable, the evictable portion of the working set of the tasks in
+ the control group may not fit into the available memory. This can cause
+ the control group to thrash or to OOM-kill tasks.
-Unevictable LRU: Detecting Unevictable Pages
+MARKING ADDRESS SPACES UNEVICTABLE
+----------------------------------
-The function page_evictable(page, vma) in vmscan.c determines whether a
-page is evictable or not. For ramfs pages and pages in SHM_LOCKed regions,
-page_evictable() tests a new address space flag, AS_UNEVICTABLE, in the page's
-address space using a wrapper function. Wrapper functions are used to set,
-clear and test the flag to reduce the requirement for #ifdef's throughout the
-source code. AS_UNEVICTABLE is set on ramfs inode/mapping when it is created.
-This flag remains for the life of the inode.
+For facilities such as ramfs none of the pages attached to the address space
+may be evicted. To prevent eviction of any such pages, the AS_UNEVICTABLE
+address space flag is provided, and this can be manipulated by a filesystem
+using a number of wrapper functions:
-For shared memory regions, AS_UNEVICTABLE is set when an application
-successfully SHM_LOCKs the region and is removed when the region is
-SHM_UNLOCKed. Note that shmctl(SHM_LOCK, ...) does not populate the page
-tables for the region as does, for example, mlock(). So, we make no special
-effort to push any pages in the SHM_LOCKed region to the unevictable list.
-Vmscan will do this when/if it encounters the pages during reclaim. On
-SHM_UNLOCK, shmctl() scans the pages in the region and "rescues" them from the
-unevictable list if no other condition keeps them unevictable. If a SHM_LOCKed
-region is destroyed, the pages are also "rescued" from the unevictable list in
-the process of freeing them.
+ (*) void mapping_set_unevictable(struct address_space *mapping);
-page_evictable() detects mlock()ed pages by testing an additional page flag,
-PG_mlocked via the PageMlocked() wrapper. If the page is NOT mlocked, and a
-non-NULL vma is supplied, page_evictable() will check whether the vma is
+ Mark the address space as being completely unevictable.
+
+ (*) void mapping_clear_unevictable(struct address_space *mapping);
+
+ Mark the address space as being evictable.
+
+ (*) int mapping_unevictable(struct address_space *mapping);
+
+ Query the address space, and return true if it is completely
+ unevictable.
+
+These are currently used in two places in the kernel:
+
+ (1) By ramfs to mark the address spaces of its inodes when they are created,
+ and this mark remains for the life of the inode.
+
+ (2) By SYSV SHM to mark SHM_LOCK'd address spaces until SHM_UNLOCK is called.
+
+ Note that SHM_LOCK is not required to page in the locked pages if they're
+ swapped out; the application must touch the pages manually if it wants to
+ ensure they're in memory.
+
+
+DETECTING UNEVICTABLE PAGES
+---------------------------
+
+The function page_evictable() in vmscan.c determines whether a page is
+evictable or not using the query function outlined above [see section "Marking
+address spaces unevictable"] to check the AS_UNEVICTABLE flag.
+
+For address spaces that are so marked after being populated (as SHM regions
+might be), the lock action (eg: SHM_LOCK) can be lazy, and need not populate
+the page tables for the region as does, for example, mlock(), nor need it make
+any special effort to push any pages in the SHM_LOCK'd area to the unevictable
+list. Instead, vmscan will do this if and when it encounters the pages during
+a reclamation scan.
+
+On an unlock action (such as SHM_UNLOCK), the unlocker (eg: shmctl()) must scan
+the pages in the region and "rescue" them from the unevictable list if no other
+condition is keeping them unevictable. If an unevictable region is destroyed,
+the pages are also "rescued" from the unevictable list in the process of
+freeing them.
+
+page_evictable() also checks for mlocked pages by testing an additional page
+flag, PG_mlocked (as wrapped by PageMlocked()). If the page is NOT mlocked,
+and a non-NULL VMA is supplied, page_evictable() will check whether the VMA is
VM_LOCKED via is_mlocked_vma(). is_mlocked_vma() will SetPageMlocked() and
update the appropriate statistics if the vma is VM_LOCKED. This method allows
efficient "culling" of pages in the fault path that are being faulted in to
-VM_LOCKED vmas.
+VM_LOCKED VMAs.
-Unevictable Pages and Vmscan [shrink_*_list()]
+VMSCAN'S HANDLING OF UNEVICTABLE PAGES
+--------------------------------------
If unevictable pages are culled in the fault path, or moved to the unevictable
-list at mlock() or mmap() time, vmscan will never encounter the pages until
-they have become evictable again, for example, via munlock() and have been
-"rescued" from the unevictable list. However, there may be situations where we
-decide, for the sake of expediency, to leave a unevictable page on one of the
-regular active/inactive LRU lists for vmscan to deal with. Vmscan checks for
-such pages in all of the shrink_{active|inactive|page}_list() functions and
-will "cull" such pages that it encounters--that is, it diverts those pages to
-the unevictable list for the zone being scanned.
+list at mlock() or mmap() time, vmscan will not encounter the pages until they
+have become evictable again (via munlock() for example) and have been "rescued"
+from the unevictable list. However, there may be situations where we decide,
+for the sake of expediency, to leave a unevictable page on one of the regular
+active/inactive LRU lists for vmscan to deal with. vmscan checks for such
+pages in all of the shrink_{active|inactive|page}_list() functions and will
+"cull" such pages that it encounters: that is, it diverts those pages to the
+unevictable list for the zone being scanned.
-There may be situations where a page is mapped into a VM_LOCKED vma, but the
-page is not marked as PageMlocked. Such pages will make it all the way to
+There may be situations where a page is mapped into a VM_LOCKED VMA, but the
+page is not marked as PG_mlocked. Such pages will make it all the way to
shrink_page_list() where they will be detected when vmscan walks the reverse
-map in try_to_unmap(). If try_to_unmap() returns SWAP_MLOCK, shrink_page_list()
-will cull the page at that point.
+map in try_to_unmap(). If try_to_unmap() returns SWAP_MLOCK,
+shrink_page_list() will cull the page at that point.
-To "cull" an unevictable page, vmscan simply puts the page back on the lru
-list using putback_lru_page()--the inverse operation to isolate_lru_page()--
-after dropping the page lock. Because the condition which makes the page
-unevictable may change once the page is unlocked, putback_lru_page() will
-recheck the unevictable state of a page that it places on the unevictable lru
-list. If the page has become unevictable, putback_lru_page() removes it from
-the list and retries, including the page_unevictable() test. Because such a
-race is a rare event and movement of pages onto the unevictable list should be
-rare, these extra evictabilty checks should not occur in the majority of calls
-to putback_lru_page().
+To "cull" an unevictable page, vmscan simply puts the page back on the LRU list
+using putback_lru_page() - the inverse operation to isolate_lru_page() - after
+dropping the page lock. Because the condition which makes the page unevictable
+may change once the page is unlocked, putback_lru_page() will recheck the
+unevictable state of a page that it places on the unevictable list. If the
+page has become unevictable, putback_lru_page() removes it from the list and
+retries, including the page_unevictable() test. Because such a race is a rare
+event and movement of pages onto the unevictable list should be rare, these
+extra evictabilty checks should not occur in the majority of calls to
+putback_lru_page().
-Mlocked Page: Prior Work
+=============
+MLOCKED PAGES
+=============
-The "Unevictable Mlocked Pages" infrastructure is based on work originally
+The unevictable page list is also useful for mlock(), in addition to ramfs and
+SYSV SHM. Note that mlock() is only available in CONFIG_MMU=y situations; in
+NOMMU situations, all mappings are effectively mlocked.
+
+
+HISTORY
+-------
+
+The "Unevictable mlocked Pages" infrastructure is based on work originally
posted by Nick Piggin in an RFC patch entitled "mm: mlocked pages off LRU".
-Nick posted his patch as an alternative to a patch posted by Christoph
-Lameter to achieve the same objective--hiding mlocked pages from vmscan.
-In Nick's patch, he used one of the struct page lru list link fields as a count
-of VM_LOCKED vmas that map the page. This use of the link field for a count
-prevented the management of the pages on an LRU list. Thus, mlocked pages were
-not migratable as isolate_lru_page() could not find them and the lru list link
-field was not available to the migration subsystem. Nick resolved this by
-putting mlocked pages back on the lru list before attempting to isolate them,
-thus abandoning the count of VM_LOCKED vmas. When Nick's patch was integrated
-with the Unevictable LRU work, the count was replaced by walking the reverse
-map to determine whether any VM_LOCKED vmas mapped the page. More on this
-below.
+Nick posted his patch as an alternative to a patch posted by Christoph Lameter
+to achieve the same objective: hiding mlocked pages from vmscan.
+
+In Nick's patch, he used one of the struct page LRU list link fields as a count
+of VM_LOCKED VMAs that map the page. This use of the link field for a count
+prevented the management of the pages on an LRU list, and thus mlocked pages
+were not migratable as isolate_lru_page() could not find them, and the LRU list
+link field was not available to the migration subsystem.
+
+Nick resolved this by putting mlocked pages back on the lru list before
+attempting to isolate them, thus abandoning the count of VM_LOCKED VMAs. When
+Nick's patch was integrated with the Unevictable LRU work, the count was
+replaced by walking the reverse map to determine whether any VM_LOCKED VMAs
+mapped the page. More on this below.
-Mlocked Pages: Basic Management
+BASIC MANAGEMENT
+----------------
-Mlocked pages--pages mapped into a VM_LOCKED vma--represent one class of
-unevictable pages. When such a page has been "noticed" by the memory
-management subsystem, the page is marked with the PG_mlocked [PageMlocked()]
-flag. A PageMlocked() page will be placed on the unevictable LRU list when
-it is added to the LRU. Pages can be "noticed" by memory management in
-several places:
+mlocked pages - pages mapped into a VM_LOCKED VMA - are a class of unevictable
+pages. When such a page has been "noticed" by the memory management subsystem,
+the page is marked with the PG_mlocked flag. This can be manipulated using the
+PageMlocked() functions.
-1) in the mlock()/mlockall() system call handlers.
-2) in the mmap() system call handler when mmap()ing a region with the
- MAP_LOCKED flag, or mmap()ing a region in a task that has called
- mlockall() with the MCL_FUTURE flag. Both of these conditions result
- in the VM_LOCKED flag being set for the vma.
-3) in the fault path, if mlocked pages are "culled" in the fault path,
- and when a VM_LOCKED stack segment is expanded.
-4) as mentioned above, in vmscan:shrink_page_list() when attempting to
- reclaim a page in a VM_LOCKED vma via try_to_unmap().
+A PG_mlocked page will be placed on the unevictable list when it is added to
+the LRU. Such pages can be "noticed" by memory management in several places:
-Mlocked pages become unlocked and rescued from the unevictable list when:
+ (1) in the mlock()/mlockall() system call handlers;
-1) mapped in a range unlocked via the munlock()/munlockall() system calls.
-2) munmapped() out of the last VM_LOCKED vma that maps the page, including
- unmapping at task exit.
-3) when the page is truncated from the last VM_LOCKED vma of an mmap()ed file.
-4) before a page is COWed in a VM_LOCKED vma.
+ (2) in the mmap() system call handler when mmapping a region with the
+ MAP_LOCKED flag;
+
+ (3) mmapping a region in a task that has called mlockall() with the MCL_FUTURE
+ flag
+
+ (4) in the fault path, if mlocked pages are "culled" in the fault path,
+ and when a VM_LOCKED stack segment is expanded; or
+
+ (5) as mentioned above, in vmscan:shrink_page_list() when attempting to
+ reclaim a page in a VM_LOCKED VMA via try_to_unmap()
+
+all of which result in the VM_LOCKED flag being set for the VMA if it doesn't
+already have it set.
+
+mlocked pages become unlocked and rescued from the unevictable list when:
+
+ (1) mapped in a range unlocked via the munlock()/munlockall() system calls;
+
+ (2) munmap()'d out of the last VM_LOCKED VMA that maps the page, including
+ unmapping at task exit;
+
+ (3) when the page is truncated from the last VM_LOCKED VMA of an mmapped file;
+ or
+
+ (4) before a page is COW'd in a VM_LOCKED VMA.
-Mlocked Pages: mlock()/mlockall() System Call Handling
+mlock()/mlockall() SYSTEM CALL HANDLING
+---------------------------------------
Both [do_]mlock() and [do_]mlockall() system call handlers call mlock_fixup()
-for each vma in the range specified by the call. In the case of mlockall(),
+for each VMA in the range specified by the call. In the case of mlockall(),
this is the entire active address space of the task. Note that mlock_fixup()
-is used for both mlock()ing and munlock()ing a range of memory. A call to
-mlock() an already VM_LOCKED vma, or to munlock() a vma that is not VM_LOCKED
-is treated as a no-op--mlock_fixup() simply returns.
+is used for both mlocking and munlocking a range of memory. A call to mlock()
+an already VM_LOCKED VMA, or to munlock() a VMA that is not VM_LOCKED is
+treated as a no-op, and mlock_fixup() simply returns.
-If the vma passes some filtering described in "Mlocked Pages: Filtering Vmas"
-below, mlock_fixup() will attempt to merge the vma with its neighbors or split
-off a subset of the vma if the range does not cover the entire vma. Once the
-vma has been merged or split or neither, mlock_fixup() will call
-__mlock_vma_pages_range() to fault in the pages via get_user_pages() and
-to mark the pages as mlocked via mlock_vma_page().
+If the VMA passes some filtering as described in "Filtering Special Vmas"
+below, mlock_fixup() will attempt to merge the VMA with its neighbors or split
+off a subset of the VMA if the range does not cover the entire VMA. Once the
+VMA has been merged or split or neither, mlock_fixup() will call
+__mlock_vma_pages_range() to fault in the pages via get_user_pages() and to
+mark the pages as mlocked via mlock_vma_page().
-Note that the vma being mlocked might be mapped with PROT_NONE. In this case,
-get_user_pages() will be unable to fault in the pages. That's OK. If pages
-do end up getting faulted into this VM_LOCKED vma, we'll handle them in the
+Note that the VMA being mlocked might be mapped with PROT_NONE. In this case,
+get_user_pages() will be unable to fault in the pages. That's okay. If pages
+do end up getting faulted into this VM_LOCKED VMA, we'll handle them in the
fault path or in vmscan.
Also note that a page returned by get_user_pages() could be truncated or
-migrated out from under us, while we're trying to mlock it. To detect
-this, __mlock_vma_pages_range() tests the page_mapping after acquiring
-the page lock. If the page is still associated with its mapping, we'll
-go ahead and call mlock_vma_page(). If the mapping is gone, we just
-unlock the page and move on. Worse case, this results in page mapped
-in a VM_LOCKED vma remaining on a normal LRU list without being
-PageMlocked(). Again, vmscan will detect and cull such pages.
+migrated out from under us, while we're trying to mlock it. To detect this,
+__mlock_vma_pages_range() checks page_mapping() after acquiring the page lock.
+If the page is still associated with its mapping, we'll go ahead and call
+mlock_vma_page(). If the mapping is gone, we just unlock the page and move on.
+In the worst case, this will result in a page mapped in a VM_LOCKED VMA
+remaining on a normal LRU list without being PageMlocked(). Again, vmscan will
+detect and cull such pages.
-mlock_vma_page(), called with the page locked [N.B., not "mlocked"], will
-TestSetPageMlocked() for each page returned by get_user_pages(). We use
-TestSetPageMlocked() because the page might already be mlocked by another
-task/vma and we don't want to do extra work. We especially do not want to
-count an mlocked page more than once in the statistics. If the page was
-already mlocked, mlock_vma_page() is done.
+mlock_vma_page() will call TestSetPageMlocked() for each page returned by
+get_user_pages(). We use TestSetPageMlocked() because the page might already
+be mlocked by another task/VMA and we don't want to do extra work. We
+especially do not want to count an mlocked page more than once in the
+statistics. If the page was already mlocked, mlock_vma_page() need do nothing
+more.
If the page was NOT already mlocked, mlock_vma_page() attempts to isolate the
page from the LRU, as it is likely on the appropriate active or inactive list
-at that time. If the isolate_lru_page() succeeds, mlock_vma_page() will
-putback the page--putback_lru_page()--which will notice that the page is now
-mlocked and divert the page to the zone's unevictable LRU list. If
+at that time. If the isolate_lru_page() succeeds, mlock_vma_page() will put
+back the page - by calling putback_lru_page() - which will notice that the page
+is now mlocked and divert the page to the zone's unevictable list. If
mlock_vma_page() is unable to isolate the page from the LRU, vmscan will handle
-it later if/when it attempts to reclaim the page.
+it later if and when it attempts to reclaim the page.
-Mlocked Pages: Filtering Special Vmas
+FILTERING SPECIAL VMAS
+----------------------
-mlock_fixup() filters several classes of "special" vmas:
+mlock_fixup() filters several classes of "special" VMAs:
-1) vmas with VM_IO|VM_PFNMAP set are skipped entirely. The pages behind
+1) VMAs with VM_IO or VM_PFNMAP set are skipped entirely. The pages behind
these mappings are inherently pinned, so we don't need to mark them as
- mlocked. In any case, most of the pages have no struct page in which to
- so mark the page. Because of this, get_user_pages() will fail for these
- vmas, so there is no sense in attempting to visit them.
+ mlocked. In any case, most of the pages have no struct page in which to so
+ mark the page. Because of this, get_user_pages() will fail for these VMAs,
+ so there is no sense in attempting to visit them.
-2) vmas mapping hugetlbfs page are already effectively pinned into memory.
- We don't need nor want to mlock() these pages. However, to preserve the
- prior behavior of mlock()--before the unevictable/mlock changes--
- mlock_fixup() will call make_pages_present() in the hugetlbfs vma range
- to allocate the huge pages and populate the ptes.
+2) VMAs mapping hugetlbfs page are already effectively pinned into memory. We
+ neither need nor want to mlock() these pages. However, to preserve the
+ prior behavior of mlock() - before the unevictable/mlock changes -
+ mlock_fixup() will call make_pages_present() in the hugetlbfs VMA range to
+ allocate the huge pages and populate the ptes.
-3) vmas with VM_DONTEXPAND|VM_RESERVED are generally user space mappings of
- kernel pages, such as the vdso page, relay channel pages, etc. These pages
+3) VMAs with VM_DONTEXPAND or VM_RESERVED are generally userspace mappings of
+ kernel pages, such as the VDSO page, relay channel pages, etc. These pages
are inherently unevictable and are not managed on the LRU lists.
- mlock_fixup() treats these vmas the same as hugetlbfs vmas. It calls
+ mlock_fixup() treats these VMAs the same as hugetlbfs VMAs. It calls
make_pages_present() to populate the ptes.
-Note that for all of these special vmas, mlock_fixup() does not set the
+Note that for all of these special VMAs, mlock_fixup() does not set the
VM_LOCKED flag. Therefore, we won't have to deal with them later during
-munlock() or munmap()--for example, at task exit. Neither does mlock_fixup()
-account these vmas against the task's "locked_vm".
-
-Mlocked Pages: Downgrading the Mmap Semaphore.
-
-mlock_fixup() must be called with the mmap semaphore held for write, because
-it may have to merge or split vmas. However, mlocking a large region of
-memory can take a long time--especially if vmscan must reclaim pages to
-satisfy the regions requirements. Faulting in a large region with the mmap
-semaphore held for write can hold off other faults on the address space, in
-the case of a multi-threaded task. It can also hold off scans of the task's
-address space via /proc. While testing under heavy load, it was observed that
-the ps(1) command could be held off for many minutes while a large segment was
-mlock()ed down.
-
-To address this issue, and to make the system more responsive during mlock()ing
-of large segments, mlock_fixup() downgrades the mmap semaphore to read mode
-during the call to __mlock_vma_pages_range(). This works fine. However, the
-callers of mlock_fixup() expect the semaphore to be returned in write mode.
-So, mlock_fixup() "upgrades" the semphore to write mode. Linux does not
-support an atomic upgrade_sem() call, so mlock_fixup() must drop the semaphore
-and reacquire it in write mode. In a multi-threaded task, it is possible for
-the task memory map to change while the semaphore is dropped. Therefore,
-mlock_fixup() looks up the vma at the range start address after reacquiring
-the semaphore in write mode and verifies that it still covers the original
-range. If not, mlock_fixup() returns an error [-EAGAIN]. All callers of
-mlock_fixup() have been changed to deal with this new error condition.
-
-Note: when munlocking a region, all of the pages should already be resident--
-unless we have racing threads mlocking() and munlocking() regions. So,
-unlocking should not have to wait for page allocations nor faults of any kind.
-Therefore mlock_fixup() does not downgrade the semaphore for munlock().
+munlock(), munmap() or task exit. Neither does mlock_fixup() account these
+VMAs against the task's "locked_vm".
-Mlocked Pages: munlock()/munlockall() System Call Handling
+munlock()/munlockall() SYSTEM CALL HANDLING
+-------------------------------------------
-The munlock() and munlockall() system calls are handled by the same functions--
-do_mlock[all]()--as the mlock() and mlockall() system calls with the unlock
-vs lock operation indicated by an argument. So, these system calls are also
-handled by mlock_fixup(). Again, if called for an already munlock()ed vma,
-mlock_fixup() simply returns. Because of the vma filtering discussed above,
-VM_LOCKED will not be set in any "special" vmas. So, these vmas will be
+The munlock() and munlockall() system calls are handled by the same functions -
+do_mlock[all]() - as the mlock() and mlockall() system calls with the unlock vs
+lock operation indicated by an argument. So, these system calls are also
+handled by mlock_fixup(). Again, if called for an already munlocked VMA,
+mlock_fixup() simply returns. Because of the VMA filtering discussed above,
+VM_LOCKED will not be set in any "special" VMAs. So, these VMAs will be
ignored for munlock.
-If the vma is VM_LOCKED, mlock_fixup() again attempts to merge or split off
-the specified range. The range is then munlocked via the function
-__mlock_vma_pages_range()--the same function used to mlock a vma range--
+If the VMA is VM_LOCKED, mlock_fixup() again attempts to merge or split off the
+specified range. The range is then munlocked via the function
+__mlock_vma_pages_range() - the same function used to mlock a VMA range -
passing a flag to indicate that munlock() is being performed.
-Because the vma access protections could have been changed to PROT_NONE after
+Because the VMA access protections could have been changed to PROT_NONE after
faulting in and mlocking pages, get_user_pages() was unreliable for visiting
-these pages for munlocking. Because we don't want to leave pages mlocked(),
+these pages for munlocking. Because we don't want to leave pages mlocked,
get_user_pages() was enhanced to accept a flag to ignore the permissions when
-fetching the pages--all of which should be resident as a result of previous
-mlock()ing.
+fetching the pages - all of which should be resident as a result of previous
+mlocking.
For munlock(), __mlock_vma_pages_range() unlocks individual pages by calling
munlock_vma_page(). munlock_vma_page() unconditionally clears the PG_mlocked
-flag using TestClearPageMlocked(). As with mlock_vma_page(), munlock_vma_page()
-use the Test*PageMlocked() function to handle the case where the page might
-have already been unlocked by another task. If the page was mlocked,
-munlock_vma_page() updates that zone statistics for the number of mlocked
-pages. Note, however, that at this point we haven't checked whether the page
-is mapped by other VM_LOCKED vmas.
+flag using TestClearPageMlocked(). As with mlock_vma_page(),
+munlock_vma_page() use the Test*PageMlocked() function to handle the case where
+the page might have already been unlocked by another task. If the page was
+mlocked, munlock_vma_page() updates that zone statistics for the number of
+mlocked pages. Note, however, that at this point we haven't checked whether
+the page is mapped by other VM_LOCKED VMAs.
-We can't call try_to_munlock(), the function that walks the reverse map to check
-for other VM_LOCKED vmas, without first isolating the page from the LRU.
+We can't call try_to_munlock(), the function that walks the reverse map to
+check for other VM_LOCKED VMAs, without first isolating the page from the LRU.
try_to_munlock() is a variant of try_to_unmap() and thus requires that the page
-not be on an lru list. [More on these below.] However, the call to
-isolate_lru_page() could fail, in which case we couldn't try_to_munlock().
-So, we go ahead and clear PG_mlocked up front, as this might be the only chance
-we have. If we can successfully isolate the page, we go ahead and
+not be on an LRU list [more on these below]. However, the call to
+isolate_lru_page() could fail, in which case we couldn't try_to_munlock(). So,
+we go ahead and clear PG_mlocked up front, as this might be the only chance we
+have. If we can successfully isolate the page, we go ahead and
try_to_munlock(), which will restore the PG_mlocked flag and update the zone
-page statistics if it finds another vma holding the page mlocked. If we fail
+page statistics if it finds another VMA holding the page mlocked. If we fail
to isolate the page, we'll have left a potentially mlocked page on the LRU.
-This is fine, because we'll catch it later when/if vmscan tries to reclaim the
-page. This should be relatively rare.
-
-Mlocked Pages: Migrating Them...
-
-A page that is being migrated has been isolated from the lru lists and is
-held locked across unmapping of the page, updating the page's mapping
-[address_space] entry and copying the contents and state, until the
-page table entry has been replaced with an entry that refers to the new
-page. Linux supports migration of mlocked pages and other unevictable
-pages. This involves simply moving the PageMlocked and PageUnevictable states
-from the old page to the new page.
-
-Note that page migration can race with mlocking or munlocking of the same
-page. This has been discussed from the mlock/munlock perspective in the
-respective sections above. Both processes [migration, m[un]locking], hold
-the page locked. This provides the first level of synchronization. Page
-migration zeros out the page_mapping of the old page before unlocking it,
-so m[un]lock can skip these pages by testing the page mapping under page
-lock.
-
-When completing page migration, we place the new and old pages back onto the
-lru after dropping the page lock. The "unneeded" page--old page on success,
-new page on failure--will be freed when the reference count held by the
-migration process is released. To ensure that we don't strand pages on the
-unevictable list because of a race between munlock and migration, page
-migration uses the putback_lru_page() function to add migrated pages back to
-the lru.
+This is fine, because we'll catch it later if and if vmscan tries to reclaim
+the page. This should be relatively rare.
-Mlocked Pages: mmap(MAP_LOCKED) System Call Handling
+MIGRATING MLOCKED PAGES
+-----------------------
+
+A page that is being migrated has been isolated from the LRU lists and is held
+locked across unmapping of the page, updating the page's address space entry
+and copying the contents and state, until the page table entry has been
+replaced with an entry that refers to the new page. Linux supports migration
+of mlocked pages and other unevictable pages. This involves simply moving the
+PG_mlocked and PG_unevictable states from the old page to the new page.
+
+Note that page migration can race with mlocking or munlocking of the same page.
+This has been discussed from the mlock/munlock perspective in the respective
+sections above. Both processes (migration and m[un]locking) hold the page
+locked. This provides the first level of synchronization. Page migration
+zeros out the page_mapping of the old page before unlocking it, so m[un]lock
+can skip these pages by testing the page mapping under page lock.
+
+To complete page migration, we place the new and old pages back onto the LRU
+after dropping the page lock. The "unneeded" page - old page on success, new
+page on failure - will be freed when the reference count held by the migration
+process is released. To ensure that we don't strand pages on the unevictable
+list because of a race between munlock and migration, page migration uses the
+putback_lru_page() function to add migrated pages back to the LRU.
+
+
+mmap(MAP_LOCKED) SYSTEM CALL HANDLING
+-------------------------------------
In addition the the mlock()/mlockall() system calls, an application can request
-that a region of memory be mlocked using the MAP_LOCKED flag with the mmap()
+that a region of memory be mlocked supplying the MAP_LOCKED flag to the mmap()
call. Furthermore, any mmap() call or brk() call that expands the heap by a
task that has previously called mlockall() with the MCL_FUTURE flag will result
-in the newly mapped memory being mlocked. Before the unevictable/mlock changes,
-the kernel simply called make_pages_present() to allocate pages and populate
-the page table.
+in the newly mapped memory being mlocked. Before the unevictable/mlock
+changes, the kernel simply called make_pages_present() to allocate pages and
+populate the page table.
To mlock a range of memory under the unevictable/mlock infrastructure, the
mmap() handler and task address space expansion functions call
mlock_vma_pages_range() specifying the vma and the address range to mlock.
-mlock_vma_pages_range() filters vmas like mlock_fixup(), as described above in
-"Mlocked Pages: Filtering Vmas". It will clear the VM_LOCKED flag, which will
-have already been set by the caller, in filtered vmas. Thus these vma's need
-not be visited for munlock when the region is unmapped.
+mlock_vma_pages_range() filters VMAs like mlock_fixup(), as described above in
+"Filtering Special VMAs". It will clear the VM_LOCKED flag, which will have
+already been set by the caller, in filtered VMAs. Thus these VMA's need not be
+visited for munlock when the region is unmapped.
-For "normal" vmas, mlock_vma_pages_range() calls __mlock_vma_pages_range() to
+For "normal" VMAs, mlock_vma_pages_range() calls __mlock_vma_pages_range() to
fault/allocate the pages and mlock them. Again, like mlock_fixup(),
mlock_vma_pages_range() downgrades the mmap semaphore to read mode before
-attempting to fault/allocate and mlock the pages; and "upgrades" the semaphore
+attempting to fault/allocate and mlock the pages and "upgrades" the semaphore
back to write mode before returning.
-The callers of mlock_vma_pages_range() will have already added the memory
-range to be mlocked to the task's "locked_vm". To account for filtered vmas,
+The callers of mlock_vma_pages_range() will have already added the memory range
+to be mlocked to the task's "locked_vm". To account for filtered VMAs,
mlock_vma_pages_range() returns the number of pages NOT mlocked. All of the
-callers then subtract a non-negative return value from the task's locked_vm.
-A negative return value represent an error--for example, from get_user_pages()
-attempting to fault in a vma with PROT_NONE access. In this case, we leave
-the memory range accounted as locked_vm, as the protections could be changed
-later and pages allocated into that region.
+callers then subtract a non-negative return value from the task's locked_vm. A
+negative return value represent an error - for example, from get_user_pages()
+attempting to fault in a VMA with PROT_NONE access. In this case, we leave the
+memory range accounted as locked_vm, as the protections could be changed later
+and pages allocated into that region.
-Mlocked Pages: munmap()/exit()/exec() System Call Handling
+munmap()/exit()/exec() SYSTEM CALL HANDLING
+-------------------------------------------
When unmapping an mlocked region of memory, whether by an explicit call to
munmap() or via an internal unmap from exit() or exec() processing, we must
-munlock the pages if we're removing the last VM_LOCKED vma that maps the pages.
+munlock the pages if we're removing the last VM_LOCKED VMA that maps the pages.
Before the unevictable/mlock changes, mlocking did not mark the pages in any
way, so unmapping them required no processing.
To munlock a range of memory under the unevictable/mlock infrastructure, the
-munmap() hander and task address space tear down function call
+munmap() handler and task address space call tear down function
munlock_vma_pages_all(). The name reflects the observation that one always
-specifies the entire vma range when munlock()ing during unmap of a region.
-Because of the vma filtering when mlocking() regions, only "normal" vmas that
+specifies the entire VMA range when munlock()ing during unmap of a region.
+Because of the VMA filtering when mlocking() regions, only "normal" VMAs that
actually contain mlocked pages will be passed to munlock_vma_pages_all().
-munlock_vma_pages_all() clears the VM_LOCKED vma flag and, like mlock_fixup()
+munlock_vma_pages_all() clears the VM_LOCKED VMA flag and, like mlock_fixup()
for the munlock case, calls __munlock_vma_pages_range() to walk the page table
-for the vma's memory range and munlock_vma_page() each resident page mapped by
-the vma. This effectively munlocks the page, only if this is the last
-VM_LOCKED vma that maps the page.
+for the VMA's memory range and munlock_vma_page() each resident page mapped by
+the VMA. This effectively munlocks the page, only if this is the last
+VM_LOCKED VMA that maps the page.
-Mlocked Page: try_to_unmap()
+try_to_unmap()
+--------------
-[Note: the code changes represented by this section are really quite small
-compared to the text to describe what happening and why, and to discuss the
-implications.]
-
-Pages can, of course, be mapped into multiple vmas. Some of these vmas may
+Pages can, of course, be mapped into multiple VMAs. Some of these VMAs may
have VM_LOCKED flag set. It is possible for a page mapped into one or more
-VM_LOCKED vmas not to have the PG_mlocked flag set and therefore reside on one
-of the active or inactive LRU lists. This could happen if, for example, a
-task in the process of munlock()ing the page could not isolate the page from
-the LRU. As a result, vmscan/shrink_page_list() might encounter such a page
-as described in "Unevictable Pages and Vmscan [shrink_*_list()]". To
-handle this situation, try_to_unmap() has been enhanced to check for VM_LOCKED
-vmas while it is walking a page's reverse map.
+VM_LOCKED VMAs not to have the PG_mlocked flag set and therefore reside on one
+of the active or inactive LRU lists. This could happen if, for example, a task
+in the process of munlocking the page could not isolate the page from the LRU.
+As a result, vmscan/shrink_page_list() might encounter such a page as described
+in section "vmscan's handling of unevictable pages". To handle this situation,
+try_to_unmap() checks for VM_LOCKED VMAs while it is walking a page's reverse
+map.
try_to_unmap() is always called, by either vmscan for reclaim or for page
-migration, with the argument page locked and isolated from the LRU. BUG_ON()
-assertions enforce this requirement. Separate functions handle anonymous and
-mapped file pages, as these types of pages have different reverse map
-mechanisms.
+migration, with the argument page locked and isolated from the LRU. Separate
+functions handle anonymous and mapped file pages, as these types of pages have
+different reverse map mechanisms.
- try_to_unmap_anon()
+ (*) try_to_unmap_anon()
-To unmap anonymous pages, each vma in the list anchored in the anon_vma must be
-visited--at least until a VM_LOCKED vma is encountered. If the page is being
-unmapped for migration, VM_LOCKED vmas do not stop the process because mlocked
-pages are migratable. However, for reclaim, if the page is mapped into a
-VM_LOCKED vma, the scan stops. try_to_unmap() attempts to acquire the mmap
-semphore of the mm_struct to which the vma belongs in read mode. If this is
-successful, try_to_unmap() will mlock the page via mlock_vma_page()--we
-wouldn't have gotten to try_to_unmap() if the page were already mlocked--and
-will return SWAP_MLOCK, indicating that the page is unevictable. If the
-mmap semaphore cannot be acquired, we are not sure whether the page is really
-unevictable or not. In this case, try_to_unmap() will return SWAP_AGAIN.
+ To unmap anonymous pages, each VMA in the list anchored in the anon_vma
+ must be visited - at least until a VM_LOCKED VMA is encountered. If the
+ page is being unmapped for migration, VM_LOCKED VMAs do not stop the
+ process because mlocked pages are migratable. However, for reclaim, if
+ the page is mapped into a VM_LOCKED VMA, the scan stops.
- try_to_unmap_file() -- linear mappings
+ try_to_unmap_anon() attempts to acquire in read mode the mmap semphore of
+ the mm_struct to which the VMA belongs. If this is successful, it will
+ mlock the page via mlock_vma_page() - we wouldn't have gotten to
+ try_to_unmap_anon() if the page were already mlocked - and will return
+ SWAP_MLOCK, indicating that the page is unevictable.
-Unmapping of a mapped file page works the same, except that the scan visits
-all vmas that maps the page's index/page offset in the page's mapping's
-reverse map priority search tree. It must also visit each vma in the page's
-mapping's non-linear list, if the list is non-empty. As for anonymous pages,
-on encountering a VM_LOCKED vma for a mapped file page, try_to_unmap() will
-attempt to acquire the associated mm_struct's mmap semaphore to mlock the page,
-returning SWAP_MLOCK if this is successful, and SWAP_AGAIN, if not.
+ If the mmap semaphore cannot be acquired, we are not sure whether the page
+ is really unevictable or not. In this case, try_to_unmap_anon() will
+ return SWAP_AGAIN.
- try_to_unmap_file() -- non-linear mappings
+ (*) try_to_unmap_file() - linear mappings
-If a page's mapping contains a non-empty non-linear mapping vma list, then
-try_to_un{map|lock}() must also visit each vma in that list to determine
-whether the page is mapped in a VM_LOCKED vma. Again, the scan must visit
-all vmas in the non-linear list to ensure that the pages is not/should not be
-mlocked. If a VM_LOCKED vma is found in the list, the scan could terminate.
-However, there is no easy way to determine whether the page is actually mapped
-in a given vma--either for unmapping or testing whether the VM_LOCKED vma
-actually pins the page.
+ Unmapping of a mapped file page works the same as for anonymous mappings,
+ except that the scan visits all VMAs that map the page's index/page offset
+ in the page's mapping's reverse map priority search tree. It also visits
+ each VMA in the page's mapping's non-linear list, if the list is
+ non-empty.
-So, try_to_unmap_file() handles non-linear mappings by scanning a certain
-number of pages--a "cluster"--in each non-linear vma associated with the page's
-mapping, for each file mapped page that vmscan tries to unmap. If this happens
-to unmap the page we're trying to unmap, try_to_unmap() will notice this on
-return--(page_mapcount(page) == 0)--and return SWAP_SUCCESS. Otherwise, it
-will return SWAP_AGAIN, causing vmscan to recirculate this page. We take
-advantage of the cluster scan in try_to_unmap_cluster() as follows:
+ As for anonymous pages, on encountering a VM_LOCKED VMA for a mapped file
+ page, try_to_unmap_file() will attempt to acquire the associated
+ mm_struct's mmap semaphore to mlock the page, returning SWAP_MLOCK if this
+ is successful, and SWAP_AGAIN, if not.
-For each non-linear vma, try_to_unmap_cluster() attempts to acquire the mmap
-semaphore of the associated mm_struct for read without blocking. If this
-attempt is successful and the vma is VM_LOCKED, try_to_unmap_cluster() will
-retain the mmap semaphore for the scan; otherwise it drops it here. Then,
-for each page in the cluster, if we're holding the mmap semaphore for a locked
-vma, try_to_unmap_cluster() calls mlock_vma_page() to mlock the page. This
-call is a no-op if the page is already locked, but will mlock any pages in
-the non-linear mapping that happen to be unlocked. If one of the pages so
-mlocked is the page passed in to try_to_unmap(), try_to_unmap_cluster() will
-return SWAP_MLOCK, rather than the default SWAP_AGAIN. This will allow vmscan
-to cull the page, rather than recirculating it on the inactive list. Again,
-if try_to_unmap_cluster() cannot acquire the vma's mmap sem, it returns
-SWAP_AGAIN, indicating that the page is mapped by a VM_LOCKED vma, but
-couldn't be mlocked.
+ (*) try_to_unmap_file() - non-linear mappings
+
+ If a page's mapping contains a non-empty non-linear mapping VMA list, then
+ try_to_un{map|lock}() must also visit each VMA in that list to determine
+ whether the page is mapped in a VM_LOCKED VMA. Again, the scan must visit
+ all VMAs in the non-linear list to ensure that the pages is not/should not
+ be mlocked.
+
+ If a VM_LOCKED VMA is found in the list, the scan could terminate.
+ However, there is no easy way to determine whether the page is actually
+ mapped in a given VMA - either for unmapping or testing whether the
+ VM_LOCKED VMA actually pins the page.
+
+ try_to_unmap_file() handles non-linear mappings by scanning a certain
+ number of pages - a "cluster" - in each non-linear VMA associated with the
+ page's mapping, for each file mapped page that vmscan tries to unmap. If
+ this happens to unmap the page we're trying to unmap, try_to_unmap() will
+ notice this on return (page_mapcount(page) will be 0) and return
+ SWAP_SUCCESS. Otherwise, it will return SWAP_AGAIN, causing vmscan to
+ recirculate this page. We take advantage of the cluster scan in
+ try_to_unmap_cluster() as follows:
+
+ For each non-linear VMA, try_to_unmap_cluster() attempts to acquire the
+ mmap semaphore of the associated mm_struct for read without blocking.
+
+ If this attempt is successful and the VMA is VM_LOCKED,
+ try_to_unmap_cluster() will retain the mmap semaphore for the scan;
+ otherwise it drops it here.
+
+ Then, for each page in the cluster, if we're holding the mmap semaphore
+ for a locked VMA, try_to_unmap_cluster() calls mlock_vma_page() to
+ mlock the page. This call is a no-op if the page is already locked,
+ but will mlock any pages in the non-linear mapping that happen to be
+ unlocked.
+
+ If one of the pages so mlocked is the page passed in to try_to_unmap(),
+ try_to_unmap_cluster() will return SWAP_MLOCK, rather than the default
+ SWAP_AGAIN. This will allow vmscan to cull the page, rather than
+ recirculating it on the inactive list.
+
+ Again, if try_to_unmap_cluster() cannot acquire the VMA's mmap sem, it
+ returns SWAP_AGAIN, indicating that the page is mapped by a VM_LOCKED
+ VMA, but couldn't be mlocked.
-Mlocked pages: try_to_munlock() Reverse Map Scan
+try_to_munlock() REVERSE MAP SCAN
+---------------------------------
-TODO/FIXME: a better name might be page_mlocked()--analogous to the
-page_referenced() reverse map walker.
+ [!] TODO/FIXME: a better name might be page_mlocked() - analogous to the
+ page_referenced() reverse map walker.
-When munlock_vma_page()--see "Mlocked Pages: munlock()/munlockall()
-System Call Handling" above--tries to munlock a page, it needs to
-determine whether or not the page is mapped by any VM_LOCKED vma, without
-actually attempting to unmap all ptes from the page. For this purpose, the
-unevictable/mlock infrastructure introduced a variant of try_to_unmap() called
-try_to_munlock().
+When munlock_vma_page() [see section "munlock()/munlockall() System Call
+Handling" above] tries to munlock a page, it needs to determine whether or not
+the page is mapped by any VM_LOCKED VMA without actually attempting to unmap
+all PTEs from the page. For this purpose, the unevictable/mlock infrastructure
+introduced a variant of try_to_unmap() called try_to_munlock().
try_to_munlock() calls the same functions as try_to_unmap() for anonymous and
mapped file pages with an additional argument specifing unlock versus unmap
processing. Again, these functions walk the respective reverse maps looking
-for VM_LOCKED vmas. When such a vma is found for anonymous pages and file
+for VM_LOCKED VMAs. When such a VMA is found for anonymous pages and file
pages mapped in linear VMAs, as in the try_to_unmap() case, the functions
attempt to acquire the associated mmap semphore, mlock the page via
mlock_vma_page() and return SWAP_MLOCK. This effectively undoes the
pre-clearing of the page's PG_mlocked done by munlock_vma_page.
-If try_to_unmap() is unable to acquire a VM_LOCKED vma's associated mmap
-semaphore, it will return SWAP_AGAIN. This will allow shrink_page_list()
-to recycle the page on the inactive list and hope that it has better luck
-with the page next time.
+If try_to_unmap() is unable to acquire a VM_LOCKED VMA's associated mmap
+semaphore, it will return SWAP_AGAIN. This will allow shrink_page_list() to
+recycle the page on the inactive list and hope that it has better luck with the
+page next time.
-For file pages mapped into non-linear vmas, the try_to_munlock() logic works
-slightly differently. On encountering a VM_LOCKED non-linear vma that might
-map the page, try_to_munlock() returns SWAP_AGAIN without actually mlocking
-the page. munlock_vma_page() will just leave the page unlocked and let
-vmscan deal with it--the usual fallback position.
+For file pages mapped into non-linear VMAs, the try_to_munlock() logic works
+slightly differently. On encountering a VM_LOCKED non-linear VMA that might
+map the page, try_to_munlock() returns SWAP_AGAIN without actually mlocking the
+page. munlock_vma_page() will just leave the page unlocked and let vmscan deal
+with it - the usual fallback position.
-Note that try_to_munlock()'s reverse map walk must visit every vma in a pages'
-reverse map to determine that a page is NOT mapped into any VM_LOCKED vma.
-However, the scan can terminate when it encounters a VM_LOCKED vma and can
-successfully acquire the vma's mmap semphore for read and mlock the page.
-Although try_to_munlock() can be called many [very many!] times when
-munlock()ing a large region or tearing down a large address space that has been
-mlocked via mlockall(), overall this is a fairly rare event.
+Note that try_to_munlock()'s reverse map walk must visit every VMA in a page's
+reverse map to determine that a page is NOT mapped into any VM_LOCKED VMA.
+However, the scan can terminate when it encounters a VM_LOCKED VMA and can
+successfully acquire the VMA's mmap semphore for read and mlock the page.
+Although try_to_munlock() might be called a great many times when munlocking a
+large region or tearing down a large address space that has been mlocked via
+mlockall(), overall this is a fairly rare event.
-Mlocked Page: Page Reclaim in shrink_*_list()
-shrink_active_list() culls any obviously unevictable pages--i.e.,
-!page_evictable(page, NULL)--diverting these to the unevictable lru
-list. However, shrink_active_list() only sees unevictable pages that
-made it onto the active/inactive lru lists. Note that these pages do not
-have PageUnevictable set--otherwise, they would be on the unevictable list and
-shrink_active_list would never see them.
+PAGE RECLAIM IN shrink_*_list()
+-------------------------------
+
+shrink_active_list() culls any obviously unevictable pages - i.e.
+!page_evictable(page, NULL) - diverting these to the unevictable list.
+However, shrink_active_list() only sees unevictable pages that made it onto the
+active/inactive lru lists. Note that these pages do not have PageUnevictable
+set - otherwise they would be on the unevictable list and shrink_active_list
+would never see them.
Some examples of these unevictable pages on the LRU lists are:
-1) ramfs pages that have been placed on the lru lists when first allocated.
+ (1) ramfs pages that have been placed on the LRU lists when first allocated.
-2) SHM_LOCKed shared memory pages. shmctl(SHM_LOCK) does not attempt to
- allocate or fault in the pages in the shared memory region. This happens
- when an application accesses the page the first time after SHM_LOCKing
- the segment.
+ (2) SHM_LOCK'd shared memory pages. shmctl(SHM_LOCK) does not attempt to
+ allocate or fault in the pages in the shared memory region. This happens
+ when an application accesses the page the first time after SHM_LOCK'ing
+ the segment.
-3) Mlocked pages that could not be isolated from the lru and moved to the
- unevictable list in mlock_vma_page().
+ (3) mlocked pages that could not be isolated from the LRU and moved to the
+ unevictable list in mlock_vma_page().
-3) Pages mapped into multiple VM_LOCKED vmas, but try_to_munlock() couldn't
- acquire the vma's mmap semaphore to test the flags and set PageMlocked.
- munlock_vma_page() was forced to let the page back on to the normal
- LRU list for vmscan to handle.
+ (4) Pages mapped into multiple VM_LOCKED VMAs, but try_to_munlock() couldn't
+ acquire the VMA's mmap semaphore to test the flags and set PageMlocked.
+ munlock_vma_page() was forced to let the page back on to the normal LRU
+ list for vmscan to handle.
-shrink_inactive_list() also culls any unevictable pages that it finds on
-the inactive lists, again diverting them to the appropriate zone's unevictable
-lru list. shrink_inactive_list() should only see SHM_LOCKed pages that became
-SHM_LOCKed after shrink_active_list() had moved them to the inactive list, or
-pages mapped into VM_LOCKED vmas that munlock_vma_page() couldn't isolate from
-the lru to recheck via try_to_munlock(). shrink_inactive_list() won't notice
-the latter, but will pass on to shrink_page_list().
+shrink_inactive_list() also diverts any unevictable pages that it finds on the
+inactive lists to the appropriate zone's unevictable list.
+
+shrink_inactive_list() should only see SHM_LOCK'd pages that became SHM_LOCK'd
+after shrink_active_list() had moved them to the inactive list, or pages mapped
+into VM_LOCKED VMAs that munlock_vma_page() couldn't isolate from the LRU to
+recheck via try_to_munlock(). shrink_inactive_list() won't notice the latter,
+but will pass on to shrink_page_list().
shrink_page_list() again culls obviously unevictable pages that it could
encounter for similar reason to shrink_inactive_list(). Pages mapped into
-VM_LOCKED vmas but without PG_mlocked set will make it all the way to
+VM_LOCKED VMAs but without PG_mlocked set will make it all the way to
try_to_unmap(). shrink_page_list() will divert them to the unevictable list
when try_to_unmap() returns SWAP_MLOCK, as discussed above.
diff --git a/MAINTAINERS b/MAINTAINERS
index 5d84358..0cb20d8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -72,7 +72,6 @@
L: Mailing list that is relevant to this area
W: Web-page with status/info
T: SCM tree type and location. Type is one of: git, hg, quilt.
-F: Applicable files and/or directories
S: Status, one of the following:
Supported: Someone is actually paid to look after this.
@@ -85,23 +84,40 @@
it has been replaced by a better system and you
should be using that.
+F: Files and directories with wildcard patterns.
+ A trailing slash includes all files and subdirectory files.
+ F: drivers/net/ all files in and below drivers/net
+ F: drivers/net/* all files in drivers/net, but not below
+ F: */net/* all files in "any top level directory"/net
+ One pattern per line. Multiple F: lines acceptable.
+X: Files and directories that are NOT maintained, same rules as F:
+ Files exclusions are tested before file matches.
+ Can be useful for excluding a specific subdirectory, for instance:
+ F: net/
+ X: net/ipv6/
+ matches all files in and below net excluding net/ipv6/
+
3C505 NETWORK DRIVER
P: Philip Blundell
M: philb@gnu.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/3c505*
3C59X NETWORK DRIVER
P: Steffen Klassert
M: klassert@mathematik.tu-chemnitz.de
L: netdev@vger.kernel.org
S: Maintained
+F: Documentation/networking/vortex.txt
+F: drivers/net/3c59x.c
3CR990 NETWORK DRIVER
P: David Dillow
M: dave@thedillows.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/typhoon*
3W-9XXX SATA-RAID CONTROLLER DRIVER
P: Adam Radford
@@ -109,6 +125,7 @@
L: linux-scsi@vger.kernel.org
W: http://www.amcc.com
S: Supported
+F: drivers/scsi/3w-9xxx*
3W-XXXX ATA-RAID CONTROLLER DRIVER
P: Adam Radford
@@ -116,35 +133,43 @@
L: linux-scsi@vger.kernel.org
W: http://www.amcc.com
S: Supported
+F: drivers/scsi/3w-xxxx*
53C700 AND 53C700-66 SCSI DRIVER
P: James E.J. Bottomley
M: James.Bottomley@HansenPartnership.com
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/53c700*
6PACK NETWORK DRIVER FOR AX.25
P: Andreas Koensgen
M: ajk@iehk.rwth-aachen.de
L: linux-hams@vger.kernel.org
S: Maintained
+F: drivers/net/hamradio/6pack.c
8169 10/100/1000 GIGABIT ETHERNET DRIVER
P: Francois Romieu
M: romieu@fr.zoreil.com
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/r8169.c
8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
L: linux-serial@vger.kernel.org
W: http://serial.sourceforge.net
S: Orphan
+F: drivers/serial/8250*
+F: include/linux/serial_8250.h
8390 NETWORK DRIVERS [WD80x3/SMC-ELITE, SMC-ULTRA, NE2000, 3C503, etc.]
P: Paul Gortmaker
M: p_gortmaker@yahoo.com
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/*8390*
+F: drivers/net/ax88796.c
9P FILE SYSTEM
P: Eric Van Hensbergen
@@ -155,14 +180,17 @@
M: lucho@ionkov.net
L: v9fs-developer@lists.sourceforge.net
W: http://swik.net/v9fs
-T: git kernel.org:/pub/scm/linux/kernel/ericvh/v9fs.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/ericvh/v9fs.git
S: Maintained
+F: Documentation/filesystems/9p.txt
+F: fs/9p/
A2232 SERIAL BOARD DRIVER
P: Enver Haase
M: A2232@gmx.net
L: linux-m68k@lists.linux-m68k.org
S: Maintained
+F: drivers/char/ser_a2232*
AACRAID SCSI RAID DRIVER
P: Adaptec OEM Raid Solutions
@@ -170,24 +198,29 @@
L: linux-scsi@vger.kernel.org
W: http://www.adaptec.com/
S: Supported
+F: Documentation/scsi/aacraid.txt
+F: drivers/scsi/aacraid/
ABIT UGURU 1,2 HARDWARE MONITOR DRIVER
P: Hans de Goede
M: j.w.r.degoede@hhs.nl
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/abituguru.c
ABIT UGURU 3 HARDWARE MONITOR DRIVER
P: Alistair John Strachan
M: alistair@devzero.co.uk
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/abituguru3.c
ACENIC DRIVER
P: Jes Sorensen
M: jes@trained-monkey.org
L: linux-acenic@sunsite.dk
S: Maintained
+F: drivers/net/acenic*
ACER WMI LAPTOP EXTRAS
P: Carlos Corbacho
@@ -195,14 +228,18 @@
L: aceracpi@googlegroups.com (subscribers-only)
W: http://code.google.com/p/aceracpi
S: Maintained
+F: drivers/platform/x86/acer-wmi.c
ACPI
P: Len Brown
M: lenb@kernel.org
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
-T: git kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
S: Supported
+F: drivers/acpi/
+F: drivers/pnp/pnpacpi/
+F: include/linux/acpi.h
ACPI BATTERY DRIVERS
P: Alexey Starikovskiy
@@ -210,6 +247,8 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/acpi/battery.c
+F: drivers/acpi/*sbs*
ACPI EC DRIVER
P: Alexey Starikovskiy
@@ -217,6 +256,7 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/acpi/ec.c
ACPI FAN DRIVER
P: Zhang Rui
@@ -224,12 +264,14 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/acpi/fan.c
ACPI PCI HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/hotplug/acpi*
ACPI THERMAL DRIVER
P: Zhang Rui
@@ -237,6 +279,7 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/acpi/*thermal*
ACPI VIDEO DRIVER
P: Zhang Rui
@@ -244,6 +287,7 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/acpi/video.c
ACPI WMI DRIVER
P: Carlos Corbacho
@@ -251,6 +295,7 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Maintained
+F: drivers/platform/x86/wmi.c
AD1889 ALSA SOUND DRIVER
P: Kyle McMartin
@@ -260,77 +305,99 @@
W: http://wiki.parisc-linux.org/AD1889
L: linux-parisc@vger.kernel.org
S: Maintained
+F: sound/pci/ad1889.*
ADM1025 HARDWARE MONITOR DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/adm1025
+F: drivers/hwmon/adm1025.c
ADM1029 HARDWARE MONITOR DRIVER
P: Corentin Labbe
M: corentin.labbe@geomatys.fr
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/adm1029.c
ADM8211 WIRELESS DRIVER
P: Michael Wu
M: flamingice@sourmilk.net
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
S: Maintained
+F: drivers/net/wireless/adm8211.*
ADT746X FAN DRIVER
P: Colin Leroy
M: colin@colino.net
S: Maintained
+F: drivers/macintosh/therm_adt746x.c
ADVANSYS SCSI DRIVER
P: Matthew Wilcox
M: matthew@wil.cx
L: linux-scsi@vger.kernel.org
S: Maintained
+F: Documentation/scsi/advansys.txt
+F: drivers/scsi/advansys.c
AEDSP16 DRIVER
P: Riccardo Facchetti
M: fizban@tin.it
S: Maintained
+F: sound/oss/aedsp16.c
AFFS FILE SYSTEM
P: Roman Zippel
M: zippel@linux-m68k.org
S: Maintained
+F: Documentation/filesystems/affs.txt
+F: fs/affs/
AFS FILESYSTEM & AF_RXRPC SOCKET DOMAIN
P: David Howells
M: dhowells@redhat.com
L: linux-afs@lists.infradead.org
S: Supported
+F: fs/afs/
+F: include/net/af_rxrpc.h
+F: net/rxrpc/af_rxrpc.c
AGPGART DRIVER
P: David Airlie
M: airlied@linux.ie
-T: git kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
S: Maintained
+F: drivers/char/agp/
+F: include/linux/agp*
AHA152X SCSI DRIVER
P: Juergen E. Fischer
-M: Juergen Fischer <fischer@norbit.de>
+M: fischer@norbit.de
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/aha152x*
+F: drivers/scsi/pcmcia/aha152x*
AIC7XXX / AIC79XX SCSI DRIVER
P: Hannes Reinecke
M: hare@suse.de
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/aic7xxx/
+F: drivers/scsi/aic7xxx_old/
AIO
P: Benjamin LaHaise
M: bcrl@kvack.org
L: linux-aio@kvack.org
S: Supported
+F: fs/aio.c
+F: include/linux/*aio*.h
ALCATEL SPEEDTOUCH USB DRIVER
P: Duncan Sands
@@ -338,17 +405,22 @@
L: linux-usb@vger.kernel.org
W: http://www.linux-usb.org/SpeedTouch/
S: Maintained
+F: drivers/usb/atm/speedtch.c
+F: drivers/usb/atm/usbatm.c
ALCHEMY AU1XX0 MMC DRIVER
P: Manuel Lauss
M: manuel.lauss@gmail.com
S: Maintained
+F: drivers/mmc/host/au1xmmc.c
ALI1563 I2C DRIVER
P: Rudolf Marek
M: r.marek@assembler.cz
L: linux-i2c@vger.kernel.org
S: Maintained
+F: Documentation/i2c/busses/i2c-ali1563
+F: drivers/i2c/busses/i2c-ali1563.c
ALPHA PORT
P: Richard Henderson
@@ -358,31 +430,41 @@
M: ink@jurassic.park.msu.ru
S: Maintained for 2.4; PCI support for 2.6.
L: linux-alpha@vger.kernel.org
+F: arch/alpha/
AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER
P: Thomas Dahlmann
M: thomas.dahlmann@amd.com
L: linux-geode@lists.infradead.org (moderated for non-subscribers)
S: Supported
+F: drivers/usb/gadget/amd5536udc.*
AMD GEODE PROCESSOR/CHIPSET SUPPORT
P: Jordan Crouse
L: linux-geode@lists.infradead.org (moderated for non-subscribers)
W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
S: Supported
+F: arch/x86/kernel/geode_32.c
+F: drivers/char/hw_random/geode-rng.c
+F: drivers/crypto/geode*
+F: drivers/video/geode/
+F: arch/x86/include/asm/geode.h
AMD IOMMU (AMD-VI)
P: Joerg Roedel
M: joerg.roedel@amd.com
L: iommu@lists.linux-foundation.org
-T: git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git
S: Supported
+F: arch/x86/kernel/amd_iommu*.c
+F: arch/x86/include/asm/amd_iommu*.h
AMD MICROCODE UPDATE SUPPORT
-P: Andreas Herrmann
-M: andeas.herrmann3@amd.com
-L: amd64-microcode@amd64.org
-S: Supported
+P: Andreas Herrmann
+M: andreas.herrmann3@amd.com
+L: amd64-microcode@amd64.org
+S: Supported
+F: arch/x86/kernel/microcode_amd.c
AMS (Apple Motion Sensor) DRIVER
P: Stelian Pop
@@ -390,6 +472,7 @@
P: Michael Hanselmann
M: linux-kernel@hansmi.ch
S: Supported
+F: drivers/hwmon/ams/
AMSO1100 RNIC DRIVER
P: Tom Tucker
@@ -398,6 +481,7 @@
M: swise@opengridcomputing.com
L: general@lists.openfabrics.org
S: Maintained
+F: drivers/infiniband/hw/amso1100/
AOA (Apple Onboard Audio) ALSA DRIVER
P: Johannes Berg
@@ -405,6 +489,7 @@
L: linuxppc-dev@ozlabs.org
L: alsa-devel@alsa-project.org (subscribers-only)
S: Maintained
+F: sound/aoa/
APM DRIVER
P: Stephen Rothwell
@@ -412,48 +497,63 @@
L: linux-laptop@vger.kernel.org
W: http://www.canb.auug.org.au/~sfr/
S: Supported
+F: arch/x86/kernel/apm_32.c
+F: include/linux/apm_bios.h
APPLE BCM5974 MULTITOUCH DRIVER
P: Henrik Rydberg
M: rydberg@euromail.se
L: linux-input@vger.kernel.org
S: Maintained
+F: drivers/input/mouse/bcm5974.c
APPLE SMC DRIVER
P: Nicolas Boichat
M: nicolas@boichat.ch
L: mactel-linux-devel@lists.sourceforge.net
S: Maintained
+F: drivers/hwmon/applesmc.c
APPLETALK NETWORK LAYER
P: Arnaldo Carvalho de Melo
M: acme@ghostprotocols.net
S: Maintained
+F: drivers/net/appletalk/
+F: net/appletalk/
APPLETOUCH TOUCHPAD DRIVER
P: Johannes Berg
M: johannes@sipsolutions.net
L: linux-input@vger.kernel.org
S: Maintained
+F: Documentation/input/appletouch.txt
+F: drivers/input/mouse/appletouch.c
ARC FRAMEBUFFER DRIVER
P: Jaya Kumar
M: jayalk@intworks.biz
S: Maintained
+F: drivers/video/arcfb.c
+F: drivers/video/fb_defio.c
ARM MFM AND FLOPPY DRIVERS
P: Ian Molton
M: spyro@f2s.com
S: Maintained
+F: arch/arm/lib/floppydma.S
+F: arch/arm/include/asm/floppy.h
ARM PRIMECELL MMCI PL180/1 DRIVER
S: Orphan
+F: drivers/mmc/host/mmci.*
ARM/ADI ROADRUNNER MACHINE SUPPORT
P: Lennert Buytenhek
M: kernel@wantstofly.org
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
S: Maintained
+F: arch/arm/mach-ixp23xx/
+F: arch/arm/mach-ixp23xx/include/mach/
ARM/ADS SPHERE MACHINE SUPPORT
P: Lennert Buytenhek
@@ -507,7 +607,7 @@
P: Paulius Zaleckas
M: paulius.zaleckas@teltonika.lt
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T: git gitorious.org/linux-gemini/mainline.git
+T: git git://gitorious.org/linux-gemini/mainline.git
S: Maintained
ARM/EZX SMARTPHONES (A780, A910, A1200, E680, ROKR E2 and ROKR E6)
@@ -643,10 +743,10 @@
S: Maintained
ARM/PALMZ72 SUPPORT
-P: Sergey Lapin
-M: slapin@ossfans.org
-W: http://hackndev.com
-S: Maintained
+P: Sergey Lapin
+M: slapin@ossfans.org
+W: http://hackndev.com
+S: Maintained
ARM/PLEB SUPPORT
P: Peter Chubb
@@ -707,16 +807,17 @@
S: Maintained
ARM/NUVOTON W90X900 ARM ARCHITECTURE
-P: Wan ZongShun
-M: mcuos.com@gmail.com
-L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-W: http://www.mcuos.com
-S: Maintained
+P: Wan ZongShun
+M: mcuos.com@gmail.com
+L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
+W: http://www.mcuos.com
+S: Maintained
ARPD SUPPORT
P: Jonathan Layes
L: netdev@vger.kernel.org
S: Maintained
+F: net/ipv4/arp.c
ASUS ACPI EXTRAS DRIVER
P: Corentin Chary
@@ -727,12 +828,15 @@
W: http://sourceforge.net/projects/acpi4asus
W: http://xf.iksaif.net/acpi4asus
S: Maintained
+F: arch/x86/kernel/acpi/boot.c
+F: drivers/platform/x86/asus_acpi.c
ASUS ASB100 HARDWARE MONITOR DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/asb100.c
ASUS LAPTOP EXTRAS DRIVER
P: Corentin Chary
@@ -741,6 +845,7 @@
W: http://sourceforge.net/projects/acpi4asus
W: http://xf.iksaif.net/acpi4asus
S: Maintained
+F: drivers/platform/x86/asus-laptop.c
ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
P: Dan Williams
@@ -750,12 +855,19 @@
L: linux-kernel@vger.kernel.org
W: http://sourceforge.net/projects/xscaleiop
S: Supported
+F: Documentation/crypto/async-tx-api.txt
+F: crypto/async_tx/
+F: drivers/dma/
+F: include/linux/dmaengine.h
+F: include/linux/async_tx.h
ATA OVER ETHERNET (AOE) DRIVER
P: Ed L. Cashin
M: ecashin@coraid.com
W: http://www.coraid.com/support/linux
S: Supported
+F: Documentation/aoe/
+F: drivers/block/aoe/
ATHEROS ATH5K WIRELESS DRIVER
P: Jiri Slaby
@@ -769,6 +881,7 @@
L: linux-wireless@vger.kernel.org
L: ath5k-devel@lists.ath5k.org
S: Maintained
+F: drivers/net/wireless/ath5k/
ATHEROS ATH9K WIRELESS DRIVER
P: Luis R. Rodriguez
@@ -778,6 +891,7 @@
L: linux-wireless@vger.kernel.org
L: ath9k-devel@lists.ath9k.org
S: Supported
+F: drivers/net/wireless/ath9k/
ATHEROS AR9170 WIRELESS DRIVER
P: Christian Lamparter
@@ -791,6 +905,7 @@
P: Ville Syrjala
M: syrjala@sci.fi
S: Maintained
+F: drivers/input/misc/ati_remote2.c
ATLX ETHERNET DRIVERS
P: Jay Cliburn
@@ -803,6 +918,7 @@
W: http://sourceforge.net/projects/atl1
W: http://atl1.sourceforge.net
S: Maintained
+F: drivers/net/atlx/
ATM
P: Chas Williams
@@ -811,6 +927,8 @@
L: netdev@vger.kernel.org
W: http://linux-atm.sourceforge.net
S: Maintained
+F: drivers/atm/
+F: include/linux/atm*
ATMEL AT91 MCI DRIVER
P: Nicolas Ferre
@@ -819,28 +937,34 @@
W: http://www.atmel.com/products/AT91/
W: http://www.at91.com/
S: Maintained
+F: drivers/mmc/host/at91_mci.c
ATMEL AT91 / AT32 SERIAL DRIVER
P: Haavard Skinnemoen
M: hskinnemoen@atmel.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: drivers/serial/atmel_serial.c
ATMEL LCDFB DRIVER
P: Nicolas Ferre
M: nicolas.ferre@atmel.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/atmel_lcdfb.c
+F: include/video/atmel_lcdc.h
ATMEL MACB ETHERNET DRIVER
P: Haavard Skinnemoen
M: hskinnemoen@atmel.com
S: Supported
+F: drivers/net/macb.*
ATMEL SPI DRIVER
P: Haavard Skinnemoen
M: hskinnemoen@atmel.com
S: Supported
+F: drivers/spi/atmel_spi.*
ATMEL USBA UDC DRIVER
P: Haavard Skinnemoen
@@ -848,6 +972,7 @@
L: kernel@avr32linux.org
W: http://avr32linux.org/twiki/bin/view/Main/AtmelUsbDeviceDriver
S: Supported
+F: drivers/usb/gadget/atmel_usba_udc.*
ATMEL WIRELESS DRIVER
P: Simon Kelley
@@ -856,6 +981,7 @@
W: http://www.thekelleys.org.uk/atmel
W: http://atmelwlandriver.sourceforge.net/
S: Maintained
+F: drivers/net/wireless/atmel*
AUDIT SUBSYSTEM
P: Al Viro
@@ -864,8 +990,10 @@
M: eparis@redhat.com
L: linux-audit@redhat.com (subscribers-only)
W: http://people.redhat.com/sgrubb/audit/
-T: git git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current.git
S: Maintained
+F: include/linux/audit.h
+F: kernel/audit*
AUXILIARY DISPLAY DRIVERS
P: Miguel Ojeda Sandonis
@@ -874,6 +1002,8 @@
W: http://miguelojeda.es/auxdisplay.htm
W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
S: Maintained
+F: drivers/auxdisplay/
+F: include/linux/cfag12864b.h
AVR32 ARCHITECTURE
P: Haavard Skinnemoen
@@ -882,11 +1012,13 @@
W: http://avr32linux.org/
W: http://avrfreaks.net/
S: Supported
+F: arch/avr32/
AVR32/AT32AP MACHINE SUPPORT
P: Haavard Skinnemoen
M: hskinnemoen@atmel.com
S: Supported
+F: arch/avr32/mach-at32ap/
AX.25 NETWORK LAYER
P: Ralf Baechle
@@ -894,6 +1026,9 @@
L: linux-hams@vger.kernel.org
W: http://www.linux-ax25.org/
S: Maintained
+F: include/linux/ax25.h
+F: include/net/ax25.h
+F: net/ax25/
B43 WIRELESS DRIVER
P: Michael Buesch
@@ -903,6 +1038,7 @@
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/en/users/Drivers/b43
S: Maintained
+F: drivers/net/wireless/b43/
B43LEGACY WIRELESS DRIVER
P: Larry Finger
@@ -912,11 +1048,14 @@
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/en/users/Drivers/b43
S: Maintained
+F: drivers/net/wireless/b43legacy/
BACKLIGHT CLASS/SUBSYSTEM
P: Richard Purdie
M: rpurdie@rpsys.net
S: Maintained
+F: drivers/video/backlight/
+F: include/linux/backlight.h
BAYCOM/HDLCDRV DRIVERS FOR AX.25
P: Thomas Sailer
@@ -924,18 +1063,24 @@
L: linux-hams@vger.kernel.org
W: http://www.baycom.org/~tom/ham/ham.html
S: Maintained
+F: drivers/net/hamradio/baycom*
BEFS FILE SYSTEM
P: Sergey S. Kostyliov
M: rathamahata@php4.ru
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/befs.txt
+F: fs/befs/
BFS FILE SYSTEM
P: Tigran A. Aivazian
M: tigran@aivazian.fsnet.co.uk
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/bfs.txt
+F: fs/bfs/
+F: include/linux/bfs_fs.h
BLACKFIN ARCHITECTURE
P: Bryan Wu
@@ -943,6 +1088,7 @@
L: uclinux-dist-devel@blackfin.uclinux.org
W: http://blackfin.uclinux.org
S: Supported
+F: arch/blackfin/
BLACKFIN EMAC DRIVER
P: Bryan Wu
@@ -950,6 +1096,7 @@
L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
W: http://blackfin.uclinux.org
S: Supported
+F: drivers/net/bfin_mac.*
BLACKFIN RTC DRIVER
P: Mike Frysinger
@@ -957,6 +1104,7 @@
L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
W: http://blackfin.uclinux.org
S: Supported
+F: drivers/rtc/rtc-bfin.c
BLACKFIN SERIAL DRIVER
P: Sonic Zhang
@@ -964,6 +1112,7 @@
L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
W: http://blackfin.uclinux.org
S: Supported
+F: drivers/serial/bfin_5xx.c
BLACKFIN WATCHDOG DRIVER
P: Mike Frysinger
@@ -971,6 +1120,7 @@
L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
W: http://blackfin.uclinux.org
S: Supported
+F: drivers/watchdog/bfin_wdt.c
BLACKFIN I2C TWI DRIVER
P: Sonic Zhang
@@ -978,19 +1128,22 @@
L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only)
W: http://blackfin.uclinux.org/
S: Supported
+F: drivers/i2c/busses/i2c-bfin-twi.c
BLOCK LAYER
P: Jens Axboe
M: axboe@kernel.dk
L: linux-kernel@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-2.6-block.git
S: Maintained
+F: block/
BLOCK2MTD DRIVER
P: Joern Engel
M: joern@lazybastard.org
L: linux-mtd@lists.infradead.org
S: Maintained
+F: drivers/mtd/devices/block2mtd.c
BLUETOOTH DRIVERS
P: Marcel Holtmann
@@ -998,14 +1151,17 @@
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
S: Maintained
+F: drivers/bluetooth/
BLUETOOTH SUBSYSTEM
P: Marcel Holtmann
M: marcel@holtmann.org
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6.git
S: Maintained
+F: net/bluetooth/
+F: include/net/bluetooth/
BONDING DRIVER
P: Jay Vosburgh
@@ -1013,24 +1169,30 @@
L: bonding-devel@lists.sourceforge.net
W: http://sourceforge.net/projects/bonding/
S: Supported
+F: drivers/net/bonding/
+F: include/linux/if_bonding.h
BROADCOM B44 10/100 ETHERNET DRIVER
P: Gary Zambrano
M: zambrano@broadcom.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/b44.*
BROADCOM BNX2 GIGABIT ETHERNET DRIVER
P: Michael Chan
M: mchan@broadcom.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/bnx2.*
+F: drivers/net/bnx2_*
BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
P: Eilon Greenstein
M: eilong@broadcom.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/bnx2x*
BROADCOM TG3 GIGABIT ETHERNET DRIVER
P: Matt Carlson
@@ -1039,41 +1201,51 @@
M: mchan@broadcom.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/tg3.*
BSG (block layer generic sg v4 driver)
P: FUJITA Tomonori
M: fujita.tomonori@lab.ntt.co.jp
L: linux-scsi@vger.kernel.org
S: Supported
+F: block/bsg.c
+F: include/linux/bsg.h
BT8XXGPIO DRIVER
P: Michael Buesch
M: mb@bu3sch.de
W: http://bu3sch.de/btgpio.php
S: Maintained
+F: drivers/gpio/bt8xxgpio.c
BTRFS FILE SYSTEM
P: Chris Mason
M: chris.mason@oracle.com
L: linux-btrfs@vger.kernel.org
W: http://btrfs.wiki.kernel.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/mason/btrfs-unstable.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git
S: Maintained
+F: Documentation/filesystems/btrfs.txt
+F: fs/btrfs/
BTTV VIDEO4LINUX DRIVER
P: Mauro Carvalho Chehab
M: mchehab@infradead.org
L: linux-media@vger.kernel.org
W: http://linuxtv.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: Documentation/video4linux/bttv/
+F: drivers/media/video/bt8xx/bttv*
CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER
P: Jonathan Corbet
M: corbet@lwn.net
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: Documentation/video4linux/cafe_ccic
+F: drivers/media/video/cafe_ccic*
CALGARY x86-64 IOMMU
P: Muli Ben-Yehuda
@@ -1083,6 +1255,10 @@
L: linux-kernel@vger.kernel.org
L: discuss@x86-64.org
S: Maintained
+F: arch/x86/kernel/pci-calgary_64.c
+F: arch/x86/kernel/tce_64.c
+F: arch/x86/include/asm/calgary.h
+F: arch/x86/include/asm/tce.h
CAN NETWORK LAYER
P: Urs Thuermann
@@ -1092,6 +1268,9 @@
L: socketcan-core@lists.berlios.de (subscribers-only)
W: http://developer.berlios.de/projects/socketcan/
S: Maintained
+F: drivers/net/can/
+F: include/linux/can/
+F: include/linux/can.h
CELL BROADBAND ENGINE ARCHITECTURE
P: Arnd Bergmann
@@ -1100,12 +1279,23 @@
L: cbe-oss-dev@ozlabs.org
W: http://www.ibm.com/developerworks/power/cell/
S: Supported
+F: arch/powerpc/include/asm/cell*.h
+F: arch/powerpc/include/asm/lv1call.h
+F: arch/powerpc/include/asm/ps3*.h
+F: arch/powerpc/include/asm/spu*.h
+F: arch/powerpc/oprofile/*cell*
+F: arch/powerpc/platforms/cell/
+F: arch/powerpc/platforms/ps3/
CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
P: David Vrabel
M: david.vrabel@csr.com
L: linux-usb@vger.kernel.org
S: Supported
+F: Documentation/usb/WUSB-Design-overview.txt
+F: Documentation/usb/wusb-cbaf
+F: drivers/usb/wusbcore/
+F: include/linux/usb/wusb*
CFAG12864B LCD DRIVER
P: Miguel Ojeda Sandonis
@@ -1114,6 +1304,8 @@
W: http://miguelojeda.es/auxdisplay.htm
W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
S: Maintained
+F: drivers/auxdisplay/cfag12864b.c
+F: include/linux/cfag12864b.h
CFAG12864BFB LCD FRAMEBUFFER DRIVER
P: Miguel Ojeda Sandonis
@@ -1122,18 +1314,25 @@
W: http://miguelojeda.es/auxdisplay.htm
W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
S: Maintained
+F: drivers/auxdisplay/cfag12864bfb.c
+F: include/linux/cfag12864b.h
CFG80211 and NL80211
P: Johannes Berg
M: johannes@sipsolutions.net
L: linux-wireless@vger.kernel.org
S: Maintained
+F: include/linux/nl80211.h
+F: include/net/cfg80211.h
+F: net/wireless/*
+X: net/wireless/wext*
CHECKPATCH
P: Andy Whitcroft
M: apw@canonical.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: scripts/checkpatch.pl
CISCO 10G ETHERNET DRIVER
P: Scott Feldman
@@ -1141,24 +1340,28 @@
P: Joe Eykholt
M: jeykholt@cisco.com
S: Supported
+F: drivers/net/enic/
CIRRUS LOGIC EP93XX ETHERNET DRIVER
P: Lennert Buytenhek
M: kernel@wantstofly.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/arm/ep93xx_eth.c
CIRRUS LOGIC EP93XX OHCI USB HOST DRIVER
P: Lennert Buytenhek
M: kernel@wantstofly.org
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/host/ohci-ep93xx.c
CIRRUS LOGIC CS4270 SOUND DRIVER
P: Timur Tabi
M: timur@freescale.com
L: alsa-devel@alsa-project.org
S: Supported
+F: sound/soc/codecs/cs4270*
CIRRUS LOGIC CS4280/CS461x SOUNDDRIVER
P: Cirrus Logic Corporation (kernel 2.2 driver)
@@ -1166,6 +1369,8 @@
P: Nils Faerber (port to kernel 2.4)
M: Nils Faerber <nils@kernelconcepts.de>
S: Maintained
+F: Documentation/input/cs461x.txt
+F: sound/pci/cs46xx/
CODA FILE SYSTEM
P: Jan Harkes
@@ -1174,6 +1379,9 @@
L: codalist@coda.cs.cmu.edu
W: http://www.coda.cs.cmu.edu/
S: Maintained
+F: Documentation/filesystems/coda.txt
+F: fs/coda/
+F: include/linux/coda*.h
COMMON INTERNET FILE SYSTEM (CIFS)
P: Steve French
@@ -1181,8 +1389,10 @@
L: linux-cifs-client@lists.samba.org
L: samba-technical@lists.samba.org
W: http://linux-cifs.samba.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6.git
S: Supported
+F: Documentation/filesystems/cifs.txt
+F: fs/cifs/
COMPACTPCI HOTPLUG CORE
P: Scott Murray
@@ -1190,6 +1400,7 @@
M: scott@spiteful.org
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/hotplug/cpci_hotplug*
COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
P: Scott Murray
@@ -1197,6 +1408,7 @@
M: scott@spiteful.org
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/hotplug/cpcihp_zt5550.*
COMPACTPCI HOTPLUG GENERIC DRIVER
P: Scott Murray
@@ -1204,17 +1416,21 @@
M: scott@spiteful.org
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/hotplug/cpcihp_generic.c
COMPAL LAPTOP SUPPORT
P: Cezary Jackiewicz
M: cezary.jackiewicz@gmail.com
S: Maintained
+F: drivers/platform/x86/compal-laptop.c
COMPUTONE INTELLIPORT MULTIPORT CARD
P: Michael H. Warfield
M: mhw@wittsend.com
W: http://www.wittsend.com/computone.html
S: Maintained
+F: Documentation/serial/computone.txt
+F: drivers/char/ip2/
CONEXANT ACCESSRUNNER USB DRIVER
P: Simon Arlott
@@ -1222,12 +1438,15 @@
L: accessrunner-general@lists.sourceforge.net
W: http://accessrunner.sourceforge.net/
S: Maintained
+F: drivers/usb/atm/cxacru.c
CONFIGFS
P: Joel Becker
M: joel.becker@oracle.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: fs/configfs/
+F: include/linux/configfs.h
CONTROL GROUPS (CGROUPS)
P: Paul Menage
@@ -1236,31 +1455,41 @@
M: lizf@cn.fujitsu.com
L: containers@lists.linux-foundation.org
S: Maintained
+F: include/linux/cgroup*
+F: kernel/cgroup*
CORETEMP HARDWARE MONITORING DRIVER
P: Rudolf Marek
M: r.marek@assembler.cz
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/coretemp
+F: drivers/hwmon/coretemp.c
COSA/SRP SYNC SERIAL DRIVER
P: Jan "Yenya" Kasprzak
M: kas@fi.muni.cz
W: http://www.fi.muni.cz/~kas/cosa/
S: Maintained
+F: drivers/net/wan/cosa*
CPU FREQUENCY DRIVERS
P: Dave Jones
M: davej@redhat.com
L: cpufreq@vger.kernel.org
W: http://www.codemonkey.org.uk/projects/cpufreq/
-T: git kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq.git
S: Maintained
+F: arch/x86/kernel/cpu/cpufreq/
+F: drivers/cpufreq/
+F: include/linux/cpufreq.h
CPUID/MSR DRIVER
P: H. Peter Anvin
M: hpa@zytor.com
S: Maintained
+F: arch/x86/kernel/cpuid.c
+F: arch/x86/kernel/msr.c
CPUSETS
P: Paul Menage
@@ -1269,10 +1498,15 @@
W: http://www.bullopensource.org/cpuset/
W: http://oss.sgi.com/projects/cpusets/
S: Supported
+F: Documentation/cgroups/cpusets.txt
+F: include/linux/cpuset.h
+F: kernel/cpuset.c
CRAMFS FILESYSTEM
W: http://sourceforge.net/projects/cramfs/
S: Orphan
+F: Documentation/filesystems/cramfs.txt
+F: fs/cramfs/
CRIS PORT
P: Mikael Starvik
@@ -1282,6 +1516,7 @@
L: dev-etrax@axis.com
W: http://developer.axis.com
S: Maintained
+F: arch/cris/
CRYPTO API
P: Herbert Xu
@@ -1289,8 +1524,13 @@
P: David S. Miller
M: davem@davemloft.net
L: linux-crypto@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
S: Maintained
+F: Documentation/crypto/
+F: arch/*/crypto/
+F: crypto/
+F: drivers/crypto/
+F: include/crypto/
CRYPTOGRAPHIC RANDOM NUMBER GENERATOR
P: Neil Horman
@@ -1302,16 +1542,21 @@
P: Jaya Kumar
M: jayakumar.alsa@gmail.com
S: Maintained
+F: sound/pci/cs5535audio/
CX18 VIDEO4LINUX DRIVER
-P: Hans Verkuil, Andy Walls
-M: hverkuil@xs4all.nl, awalls@radix.net
+P: Hans Verkuil
+M: hverkuil@xs4all.nl
+P: Andy Walls
+M: awalls@radix.net
L: ivtv-devel@ivtvdriver.org
L: ivtv-users@ivtvdriver.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://linuxtv.org
S: Maintained
+F: Documentation/video4linux/cx18.txt
+F: drivers/media/video/cx18/
CXGB3 ETHERNET DRIVER (CXGB3)
P: Divy Le Ray
@@ -1319,6 +1564,7 @@
L: netdev@vger.kernel.org
W: http://www.chelsio.com
S: Supported
+F: drivers/net/cxgb3/
CXGB3 IWARP RNIC DRIVER (IW_CXGB3)
P: Steve Wise
@@ -1326,32 +1572,32 @@
L: general@lists.openfabrics.org
W: http://www.openfabrics.org
S: Supported
+F: drivers/infiniband/hw/cxgb3/
CYBERPRO FB DRIVER
P: Russell King
M: rmk@arm.linux.org.uk
W: http://www.arm.linux.org.uk/
S: Maintained
-
-CYBLAFB FRAMEBUFFER DRIVER
-P: Knut Petersen
-M: Knut_Petersen@t-online.de
-L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
-S: Maintained
+F: drivers/video/cyber2000fb.*
CYCLADES 2X SYNC CARD DRIVER
P: Arnaldo Carvalho de Melo
M: acme@ghostprotocols.net
W: http://oops.ghostprotocols.net:81/blog
S: Maintained
+F: drivers/net/wan/cycx*
CYCLADES ASYNC MUX DRIVER
W: http://www.cyclades.com/
S: Orphan
+F: drivers/char/cyclades.c
+F: include/linux/cyclades.h
CYCLADES PC300 DRIVER
W: http://www.cyclades.com/
S: Orphan
+F: drivers/net/wan/pc300*
DAMA SLAVE for AX.25
P: Joerg Reuter
@@ -1360,12 +1606,21 @@
W: http://www.qsl.net/dl1bke/
L: linux-hams@vger.kernel.org
S: Maintained
+F: net/ax25/af_ax25.c
+F: net/ax25/ax25_dev.c
+F: net/ax25/ax25_ds_*
+F: net/ax25/ax25_in.c
+F: net/ax25/ax25_out.c
+F: net/ax25/ax25_timer.c
+F: net/ax25/sysctl_net_ax25.c
DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
P: Tobias Ringstrom
M: tori@unhappy.mine.nu
L: netdev@vger.kernel.org
S: Maintained
+F: Documentation/networking/dmfe.txt
+F: drivers/net/tulip/dmfe.c
DC390/AM53C974 SCSI driver
P: Kurt Garloff
@@ -1374,6 +1629,7 @@
P: Guennadi Liakhovetski
M: g.liakhovetski@gmx.de
S: Maintained
+F: drivers/scsi/tmscsim.*
DC395x SCSI driver
P: Oliver Neukum
@@ -1386,6 +1642,8 @@
L: dc395x@twibble.org
L: http://lists.twibble.org/mailman/listinfo/dc395x/
S: Maintained
+F: Documentation/scsi/dc395x.txt
+F: drivers/scsi/dc395x.*
DCCP PROTOCOL
P: Arnaldo Carvalho de Melo
@@ -1393,6 +1651,9 @@
L: dccp@vger.kernel.org
W: http://linux-net.osdl.org/index.php/DCCP
S: Maintained
+F: include/linux/dccp.h
+F: include/linux/tfrc.h
+F: net/dccp/
DECnet NETWORK LAYER
P: Christine Caulfield
@@ -1400,27 +1661,35 @@
W: http://linux-decnet.sourceforge.net
L: linux-decnet-user@lists.sourceforge.net
S: Maintained
+F: Documentation/networking/decnet.txt
+F: net/decnet/
DEFXX FDDI NETWORK DRIVER
P: Maciej W. Rozycki
M: macro@linux-mips.org
S: Maintained
+F: drivers/net/defxx.*
DELL LAPTOP DRIVER
P: Matthew Garrett
M: mjg59@srcf.ucam.org
S: Maintained
+F: drivers/platform/x86/dell-laptop.c
DELL LAPTOP SMM DRIVER
P: Massimo Dal Zotto
M: dz@debian.org
W: http://www.debian.org/~dz/i8k/
S: Maintained
+F: drivers/char/i8k.c
+F: include/linux/i8k.h
DELL SYSTEMS MANAGEMENT BASE DRIVER (dcdbas)
P: Doug Warzecha
M: Douglas_Warzecha@dell.com
S: Maintained
+F: Documentation/dcdbas.txt
+F: drivers/firmware/dcdbas.*
DELL WMI EXTRAS DRIVER
P: Matthew Garrett
@@ -1439,6 +1708,10 @@
L: dm-devel@redhat.com
W: http://sources.redhat.com/dm
S: Maintained
+F: Documentation/device-mapper/
+F: drivers/md/dm*
+F: include/linux/device-mapper.h
+F: include/linux/dm-*.h
DIGI INTL. EPCA DRIVER
P: Digi International, Inc
@@ -1446,12 +1719,18 @@
L: Eng.Linux@digi.com
W: http://www.digi.com
S: Orphan
+F: Documentation/serial/digiepca.txt
+F: drivers/char/epca*
+F: drivers/char/digi*
DIRECTORY NOTIFICATION (DNOTIFY)
P: Stephen Rothwell
M: sfr@canb.auug.org.au
L: linux-kernel@vger.kernel.org
S: Supported
+F: Documentation/filesystems/dnotify.txt
+F: fs/notify/dnotify/
+F: include/linux/dnotify.h
DISK GEOMETRY AND PARTITION HANDLING
P: Andries Brouwer
@@ -1466,6 +1745,9 @@
M: jack@suse.cz
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/quota.txt
+F: fs/quota/
+F: include/linux/quota*.h
DISTRIBUTED LOCK MANAGER (DLM)
P: Christine Caulfield
@@ -1474,8 +1756,9 @@
M: teigland@redhat.com
L: cluster-devel@redhat.com
W: http://sources.redhat.com/cluster/
-T: git kernel.org:/pub/scm/linux/kernel/git/teigland/dlm.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm.git
S: Supported
+F: fs/dlm/
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
P: Maciej Sosnowski
@@ -1484,12 +1767,16 @@
M: dan.j.williams@intel.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: drivers/dma/
+F: include/linux/dma*
DME1737 HARDWARE MONITOR DRIVER
P: Juerg Haefliger
M: juergh@gmail.com
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/dme1737
+F: drivers/hwmon/dme1737.c
DOCBOOK FOR DOCUMENTATION
P: Randy Dunlap
@@ -1501,18 +1788,22 @@
M: shaohua.li@intel.com
L: linux-acpi@vger.kernel.org
S: Supported
+F: drivers/acpi/dock.c
-DOCUMENTATION (/Documentation directory)
+DOCUMENTATION
P: Randy Dunlap
M: rdunlap@xenotime.net
L: linux-doc@vger.kernel.org
S: Maintained
+F: Documentation/
DOUBLETALK DRIVER
P: James R. Van Zandt
M: jrv@vanzandt.mv.com
L: blinux-list@redhat.com
S: Maintained
+F: drivers/char/dtlk.c
+F: include/linux/dtlk.h
DPT_I2O SCSI RAID DRIVER
P: Adaptec OEM Raid Solutions
@@ -1520,6 +1811,8 @@
L: linux-scsi@vger.kernel.org
W: http://www.adaptec.com/
S: Maintained
+F: drivers/scsi/dpt*
+F: drivers/scsi/dpt/
DRIVER CORE, KOBJECTS, AND SYSFS
P: Greg Kroah-Hartman
@@ -1527,48 +1820,55 @@
L: linux-kernel@vger.kernel.org
T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
S: Supported
+F: Documentation/kobject.txt
+F: drivers/base/
+F: fs/sysfs/
+F: include/linux/kobj*
+F: lib/kobj*
DRM DRIVERS
P: David Airlie
M: airlied@linux.ie
L: dri-devel@lists.sourceforge.net
-T: git kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
S: Maintained
+F: drivers/gpu/drm/
DSCC4 DRIVER
P: Francois Romieu
M: romieu@fr.zoreil.com
L: netdev@vger.kernel.org
S: Maintained
-
-DVB SUBSYSTEM AND DRIVERS
-P: LinuxTV.org Project
-M: linux-media@vger.kernel.org
-W: http://linuxtv.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
-S: Maintained
+F: drivers/net/wan/dscc4.c
DZ DECSTATION DZ11 SERIAL DRIVER
P: Maciej W. Rozycki
M: macro@linux-mips.org
S: Maintained
+F: drivers/serial/dz.*
EATA-DMA SCSI DRIVER
P: Michael Neuffer
-L: linux-eata@i-connect.net, linux-scsi@vger.kernel.org
+M: mike@i-Connect.Net
+L: linux-eata@i-connect.net
+L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/eata*
EATA ISA/EISA/PCI SCSI DRIVER
P: Dario Ballabio
M: ballabio_dario@emc.com
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/eata.c
EATA-PIO SCSI DRIVER
P: Michael Neuffer
M: mike@i-Connect.Net
-L: linux-eata@i-connect.net, linux-scsi@vger.kernel.org
+L: linux-eata@i-connect.net
+L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/eata_pio.*
EBTABLES
P: Bart De Schuymer
@@ -1577,87 +1877,105 @@
L: ebtables-devel@lists.sourceforge.net
W: http://ebtables.sourceforge.net/
S: Maintained
+F: include/linux/netfilter_bridge/ebt_*.h
+F: net/bridge/netfilter/ebt*.c
ECRYPT FILE SYSTEM
-P: Tyler Hicks, Dustin Kirkland
-M: tyhicks@linux.vnet.ibm.com, kirkland@canonical.com
+P: Tyler Hicks
+M: tyhicks@linux.vnet.ibm.com
+M: Dustin Kirkland
+P: kirkland@canonical.com
L: ecryptfs-devel@lists.launchpad.net
W: https://launchpad.net/ecryptfs
S: Supported
+F: Documentation/filesystems/ecryptfs.txt
+F: fs/ecryptfs/
EDAC-CORE
P: Doug Thompson
M: dougthompson@xmission.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Supported
+F: Documentation/edac.txt
+F: drivers/edac/edac_*
+F: include/linux/edac.h
EDAC-E752X
P: Mark Gross
P: Doug Thompson
M: mark.gross@intel.com
M: dougthompson@xmission.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/e752x_edac.c
EDAC-E7XXX
P: Doug Thompson
M: dougthompson@xmission.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/e7xxx_edac.c
EDAC-I82443BXGX
P: Tim Small
M: tim@buttersideup.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/i82443bxgx_edac.c
EDAC-I3000
P: Jason Uhlenkott
M: juhlenko@akamai.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/i3000_edac.c
EDAC-I5000
P: Doug Thompson
M: dougthompson@xmission.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/i5000_edac.c
EDAC-I5400
P: Mauro Carvalho Chehab
M: mchehab@redhat.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/i5400_edac.c
EDAC-I82975X
P: Ranganathan Desikan
P: Arvind R.
M: rdesikan@jetzbroadband.com
M: arvind@acarlab.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/i82975x_edac.c
EDAC-PASEMI
P: Egor Martovetsky
M: egor@pasemi.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/pasemi_edac.c
EDAC-R82600
P: Tim Small
M: tim@buttersideup.com
-L: bluesmoke-devel@lists.sourceforge.net
+L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Maintained
+F: drivers/edac/r82600_edac.c
EEEPC LAPTOP EXTRAS DRIVER
P: Corentin Chary
@@ -1665,10 +1983,12 @@
L: acpi4asus-user@lists.sourceforge.net
W: http://sourceforge.net/projects/acpi4asus
S: Maintained
+F: drivers/platform/x86/eeepc-laptop.c
EFS FILESYSTEM
W: http://aeschi.ch.eu.org/efs/
S: Orphan
+F: fs/efs/
EHCA (IBM GX bus InfiniBand adapter) DRIVER
P: Hoang-Nam Nguyen
@@ -1677,6 +1997,7 @@
M: raisch@de.ibm.com
L: general@lists.openfabrics.org
S: Supported
+F: drivers/infiniband/hw/ehca/
EMBEDDED LINUX
P: Paul Gortmaker
@@ -1692,22 +2013,29 @@
L: linux-scsi@vger.kernel.org
W: http://sourceforge.net/projects/lpfcxxxx
S: Supported
+F: drivers/scsi/lpfc/
EPSON 1355 FRAMEBUFFER DRIVER
P: Christopher Hoover
-M: ch@murgatroid.com, ch@hpl.hp.com
+M: ch@murgatroid.com
+P: Christopher Hoover
+M: ch@hpl.hp.com
S: Maintained
+F: drivers/video/epson1355fb.c
EPSON S1D13XXX FRAMEBUFFER DRIVER
P: Kristoffer Ericson
M: kristoffer.ericson@gmail.com
S: Maintained
+F: drivers/video/s1d13xxxfb.c
+F: include/video/s1d13xxxfb.h
ETHEREXPRESS-16 NETWORK DRIVER
P: Philip Blundell
M: philb@gnu.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/eexpress.*
ETHERNET BRIDGE
P: Stephen Hemminger
@@ -1715,87 +2043,126 @@
L: bridge@lists.linux-foundation.org
W: http://www.linux-foundation.org/en/Net:Bridge
S: Maintained
+F: include/linux/netfilter_bridge/
+F: net/bridge/
ETHERTEAM 16I DRIVER
P: Mika Kuoppala
M: miku@iki.fi
S: Maintained
+F: drivers/net/eth16i.c
EXT2 FILE SYSTEM
L: linux-ext4@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/ext2.txt
+F: fs/ext2/
+F: include/linux/ext2*
EXT3 FILE SYSTEM
-P: Stephen Tweedie, Andrew Morton
-M: sct@redhat.com, akpm@linux-foundation.org, adilger@sun.com
+P: Stephen Tweedie
+M: sct@redhat.com
+P: Andrew Morton
+M: akpm@linux-foundation.org
+P: Andreas Dilger
+M: adilger@sun.com
L: linux-ext4@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/ext3.txt
+F: fs/ext3/
+F: include/linux/ext3*
EXT4 FILE SYSTEM
P: Theodore Ts'o
-M: tytso@mit.edu, adilger@sun.com
+M: tytso@mit.edu
+P: Andreas Dilger
+M: adilger@sun.com
L: linux-ext4@vger.kernel.org
W: http://ext4.wiki.kernel.org
S: Maintained
+F: Documentation/filesystems/ext4.txt
+F: fs/ext4/
F71805F HARDWARE MONITORING DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/f71805f
+F: drivers/hwmon/f71805f.c
FARSYNC SYNCHRONOUS DRIVER
P: Kevin Curtis
M: kevin.curtis@farsite.co.uk
W: http://www.farsite.co.uk/
S: Supported
+F: drivers/net/wan/farsync.*
FAULT INJECTION SUPPORT
P: Akinobu Mita
M: akinobu.mita@gmail.com
S: Supported
+F: Documentation/fault-injection/
+F: lib/fault-inject.c
FILE LOCKING (flock() and fcntl()/lockf())
P: Matthew Wilcox
M: matthew@wil.cx
L: linux-fsdevel@vger.kernel.org
S: Maintained
+F: include/linux/fcntl.h
+F: include/linux/fs.h
+F: fs/fcntl.c
+F: fs/locks.c
FILESYSTEMS (VFS and infrastructure)
P: Alexander Viro
M: viro@zeniv.linux.org.uk
L: linux-fsdevel@vger.kernel.org
S: Maintained
+F: fs/*
FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
P: Riku Voipio
M: riku.vipio@iki.fi
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/f75375s.c
+F: include/linux/f75375s.h
-FIREWIRE SUBSYSTEM (drivers/firewire, <linux/firewire*.h>)
-P: Kristian Hoegsberg, Stefan Richter
-M: krh@redhat.com, stefanr@s5r6.in-berlin.de
+FIREWIRE SUBSYSTEM
+P: Kristian Hoegsberg
+M: krh@redhat.com
+P: Stefan Richter
+M: stefanr@s5r6.in-berlin.de
L: linux1394-devel@lists.sourceforge.net
W: http://www.linux1394.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
S: Maintained
+F: drivers/firewire/
+F: include/linux/firewire*.h
FIRMWARE LOADER (request_firmware)
L: linux-kernel@vger.kernel.org
S: Orphan
+F: Documentation/firmware_class/
+F: drivers/base/firmware*.c
+F: include/linux/firmware.h
FPU EMULATOR
P: Bill Metzenthen
-M: billm@suburbia.net
-W: http://suburbia.net/~billm/floating-point/emulator/
+M: billm@melbpc.org.au
+W: http://floatingpoint.sourceforge.net/emulator/index.html
S: Maintained
+F: arch/x86/math-emu/
FRAME RELAY DLCI/FRAD (Sangoma drivers too)
P: Mike McLagan
M: mike.mclagan@linux.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/wan/dlci.c
+F: drivers/net/wan/sdla.c
FRAMEBUFFER LAYER
P: Antonino Daplas
@@ -1803,6 +2170,9 @@
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://linux-fbdev.sourceforge.net/
S: Maintained
+F: Documentation/fb/
+F: drivers/video/fb*
+F: include/linux/fb.h
FREESCALE DMA DRIVER
P: Li Yang
@@ -1812,6 +2182,7 @@
L: linuxppc-embedded@ozlabs.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/dma/fsldma.*
FREESCALE I2C CPM DRIVER
P: Jochen Friedrich
@@ -1819,6 +2190,7 @@
L: linuxppc-dev@ozlabs.org
L: linux-i2c@vger.kernel.org
S: Maintained
+F: drivers/i2c/busses/i2c-cpm.c
FREESCALE IMX / MXC FRAMEBUFFER DRIVER
P: Sascha Hauer
@@ -1826,6 +2198,8 @@
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
S: Maintained
+F: arch/arm/plat-mxc/include/mach/imxfb.h
+F: drivers/video/imxfb.c
FREESCALE SOC FS_ENET DRIVER
P: Pantelis Antoniou
@@ -1835,12 +2209,16 @@
L: linuxppc-dev@ozlabs.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/fs_enet/
+F: include/linux/fs_enet_pd.h
FREESCALE QUICC ENGINE LIBRARY
P: Timur Tabi
M: timur@freescale.com
L: linuxppc-dev@ozlabs.org
S: Supported
+F: arch/powerpc/sysdev/qe_lib/
+F: arch/powerpc/include/asm/*qe.h
FREESCALE HIGHSPEED USB DEVICE DRIVER
P: Li Yang
@@ -1848,6 +2226,7 @@
L: linux-usb@vger.kernel.org
L: linuxppc-dev@ozlabs.org
S: Maintained
+F: drivers/usb/gadget/fsl_usb2_udc.c
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
P: Li Yang
@@ -1855,12 +2234,14 @@
L: netdev@vger.kernel.org
L: linuxppc-dev@ozlabs.org
S: Maintained
+F: drivers/net/ucc_geth*
FREESCALE QUICC ENGINE UCC UART DRIVER
P: Timur Tabi
M: timur@freescale.com
L: linuxppc-dev@ozlabs.org
S: Supported
+F: drivers/serial/ucc_uart.c
FREESCALE SOC SOUND DRIVERS
P: Timur Tabi
@@ -1868,12 +2249,15 @@
L: alsa-devel@alsa-project.org
L: linuxppc-dev@ozlabs.org
S: Supported
+F: sound/soc/fsl/fsl*
+F: sound/soc/fsl/mpc8610_hpcd.c
FREEVXFS FILESYSTEM
P: Christoph Hellwig
M: hch@infradead.org
W: ftp://ftp.openlinux.org/pub/people/hch/vxfs
S: Maintained
+F: fs/freevxfs/
FREEZER
P: Pavel Machek
@@ -1882,22 +2266,32 @@
M: rjw@sisk.pl
L: linux-pm@lists.linux-foundation.org
S: Supported
+F: Documentation/power/freezing-of-tasks.txt
+F: include/linux/freezer.h
+F: kernel/freezer.c
FTRACE
P: Steven Rostedt
M: rostedt@goodmis.org
S: Maintained
+F: Documentation/ftrace.txt
+F: arch/*/*/*/ftrace.h
+F: arch/*/kernel/ftrace.c
+F: include/*/ftrace.h
+F: kernel/trace/
FUJITSU FR-V (FRV) PORT
P: David Howells
M: dhowells@redhat.com
S: Maintained
+F: arch/frv/
FUJITSU LAPTOP EXTRAS
P: Jonathan Woithe
M: jwoithe@physics.adelaide.edu.au
L: linux-acpi@vger.kernel.org
S: Maintained
+F: drivers/platform/x86/fujitsu-laptop.c
FUSE: FILESYSTEM IN USERSPACE
P: Miklos Szeredi
@@ -1905,12 +2299,15 @@
L: fuse-devel@lists.sourceforge.net
W: http://fuse.sourceforge.net/
S: Maintained
+F: fs/fuse/
+F: include/linux/fuse.h
FUTURE DOMAIN TMC-16x0 SCSI DRIVER (16-bit)
P: Rik Faith
M: faith@cs.unc.edu
L: linux-scsi@vger.kernel.org
S: Odd Fixes (e.g., new signatures)
+F: drivers/scsi/fdomain.*
GDT SCSI DISK ARRAY CONTROLLER DRIVER
P: Achim Leubner
@@ -1918,26 +2315,39 @@
L: linux-scsi@vger.kernel.org
W: http://www.icp-vortex.com/
S: Supported
+F: drivers/scsi/gdt*
GENERIC GPIO I2C DRIVER
P: Haavard Skinnemoen
M: hskinnemoen@atmel.com
S: Supported
+F: drivers/i2c/busses/i2c-gpio.c
+F: include/linux/i2c-gpio.h
GENERIC HDLC (WAN) DRIVERS
P: Krzysztof Halasa
M: khc@pm.waw.pl
W: http://www.kernel.org/pub/linux/utils/net/hdlc/
S: Maintained
+F: drivers/net/wan/c101.c
+F: drivers/net/wan/hd6457*
+F: drivers/net/wan/hdlc*
+F: drivers/net/wan/n2.c
+F: drivers/net/wan/pc300too.c
+F: drivers/net/wan/pci200syn.c
+F: drivers/net/wan/wanxl*
GFS2 FILE SYSTEM
P: Steven Whitehouse
M: swhiteho@redhat.com
L: cluster-devel@redhat.com
W: http://sources.redhat.com/cluster/
-T: git kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git
-T: git kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw.git
S: Supported
+F: Documentation/filesystems/gfs2*.txt
+F: fs/gfs2/
+F: include/linux/gfs2_ondisk.h
GIGASET ISDN DRIVERS
P: Hansjoerg Lipp
@@ -1947,6 +2357,9 @@
L: gigaset307x-common@lists.sourceforge.net
W: http://gigaset307x.sourceforge.net/
S: Maintained
+F: Documentation/isdn/README.gigaset
+F: drivers/isdn/gigaset/
+F: include/linux/gigaset_dev.h
HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
P: Frank Seidel
@@ -1954,6 +2367,7 @@
L: lm-sensors@lm-sensors.org
W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
S: Maintained
+F: drivers/hwmon/hdaps.c
HYPERVISOR VIRTUAL CONSOLE DRIVER
L: linuxppc-dev@ozlabs.org
@@ -1965,51 +2379,61 @@
P: Frank Zago
M: frank@zago.net
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/gspca/finepix.c
GSPCA M5602 SUBDRIVER
P: Erik Andren
M: erik.andren@gmail.com
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/gspca/m5602/
GSPCA PAC207 SONIXB SUBDRIVER
P: Hans de Goede
M: hdegoede@redhat.com
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/gspca/pac207.c
GSPCA T613 SUBDRIVER
P: Leandro Costantino
M: lcostantino@gmail.com
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/gspca/t613.c
GSPCA USB WEBCAM DRIVER
P: Jean-Francois Moine
M: moinejf@free.fr
W: http://moinejf.free.fr
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/gspca/
HARDWARE MONITORING
L: lm-sensors@lm-sensors.org
W: http://www.lm-sensors.org/
S: Orphan
+F: drivers/hwmon/
HARDWARE RANDOM NUMBER GENERATOR CORE
S: Orphan
+F: Documentation/hw_random.txt
+F: drivers/char/hw_random/
+F: include/linux/hw_random.h
HARMONY SOUND DRIVER
P: Kyle McMartin
M: kyle@mcmartin.ca
L: linux-parisc@vger.kernel.org
S: Maintained
+F: sound/parisc/harmony.*
HAYES ESP SERIAL DRIVER
P: Andrew J. Robinson
@@ -2017,30 +2441,33 @@
L: linux-kernel@vger.kernel.org
W: http://www.nyx.net/~arobinso
S: Maintained
-
-HEWLETT-PACKARD FIBRE CHANNEL 64-bit/66MHz PCI non-intelligent HBA
-P: Chirag Kantharia
-M: chirag.kantharia@hp.com
-L: iss_storagedev@hp.com
-S: Maintained
+F: Documentation/serial/hayes-esp.txt
+F: drivers/char/esp.c
HEWLETT-PACKARD SMART2 RAID DRIVER
P: Chirag Kantharia
M: chirag.kantharia@hp.com
L: iss_storagedev@hp.com
S: Maintained
+F: Documentation/blockdev/cpqarray.txt
+F: drivers/block/cpqarray.*
HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss)
P: Mike Miller
M: mike.miller@hp.com
L: iss_storagedev@hp.com
S: Supported
+F: Documentation/blockdev/cciss.txt
+F: drivers/block/cciss*
+F: include/linux/cciss_ioctl.h
HFS FILESYSTEM
P: Roman Zippel
M: zippel@linux-m68k.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/hfs.txt
+F: fs/hfs/
HGA FRAMEBUFFER DRIVER
P: Ferenc Bakonyi
@@ -2048,6 +2475,7 @@
L: linux-nvidia@lists.surfsouth.com
W: http://drama.obuda.kando.hu/~fero/cgi-bin/hgafb.shtml
S: Maintained
+F: drivers/video/hgafb.c
HIBERNATION (aka Software Suspend, aka swsusp)
P: Pavel Machek
@@ -2056,19 +2484,32 @@
M: rjw@sisk.pl
L: linux-pm@lists.linux-foundation.org
S: Supported
+F: arch/x86/power/
+F: drivers/base/power/
+F: kernel/power/
+F: include/linux/suspend.h
+F: include/linux/freezer.h
+F: include/linux/pm.h
+F: include/asm-*/suspend*.h
+F: arch/*/include/asm/suspend*.h
HID CORE LAYER
P: Jiri Kosina
M: jkosina@suse.cz
L: linux-input@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jikos/hid.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git
S: Maintained
+F: drivers/hid/
+F: include/linux/hid*
HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS
P: Thomas Gleixner
M: tglx@linutronix.de
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/timers/
+F: kernel/hrtimer.c
+F: include/linux/hrtimer.h
HIGH-SPEED SCC DRIVER FOR AX.25
P: Klaus Kudielka
@@ -2076,18 +2517,25 @@
L: linux-hams@vger.kernel.org
W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/
S: Maintained
+F: drivers/net/hamradio/dmascc.c
+F: drivers/net/hamradio/scc.c
HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
P: HighPoint Linux Team
M: linux@highpoint-tech.com
W: http://www.highpoint-tech.com
S: Supported
+F: Documentation/scsi/hptiop.txt
+F: drivers/scsi/hptiop.c
HIPPI
P: Jes Sorensen
M: jes@trained-monkey.org
L: linux-hippi@sunsite.dk
S: Maintained
+F: include/linux/hippidevice.h
+F: include/linux/if_hippi.h
+F: net/802/hippi.c
HOST AP DRIVER
P: Jouni Malinen
@@ -2096,65 +2544,79 @@
L: linux-wireless@vger.kernel.org
W: http://hostap.epitest.fi/
S: Maintained
+F: drivers/net/wireless/hostap/
HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
P: Carlos Corbacho
M: carlos@strangeworlds.co.uk
S: Odd Fixes
+F: drivers/platform/x86/tc1100-wmi.c
HP100: Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series
P: Jaroslav Kysela
M: perex@perex.cz
S: Maintained
+F: drivers/net/hp100.*
-HPET: High Precision Event Timers driver (drivers/char/hpet.c)
+HPET: High Precision Event Timers driver
P: Clemens Ladisch
M: clemens@ladisch.de
S: Maintained
+F: Documentation/timers/hpet.txt
+F: drivers/char/hpet.c
+F: include/linux/hpet.h
HPET: i386
P: Venkatesh Pallipadi (Venki)
M: venkatesh.pallipadi@intel.com
S: Maintained
+F: arch/x86/kernel/hpet.c
+F: arch/x86/include/asm/hpet.h
HPET: x86_64
P: Vojtech Pavlik
M: vojtech@suse.cz
S: Maintained
-HPET: ACPI hpet.c
+HPET: ACPI
P: Bob Picco
M: bob.picco@hp.com
S: Maintained
+F: drivers/char/hpet.c
HPFS FILESYSTEM
P: Mikulas Patocka
M: mikulas@artax.karlin.mff.cuni.cz
W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
S: Maintained
+F: fs/hpfs/
-HSO 3G Modem Driver (hso.c)
-P: Denis Joseph Barrow
-M: d.barow@option.com
+HSO 3G MODEM DRIVER
+P: Jan Dumon
+M: j.dumon@option.com
W: http://www.pharscape.org
S: Maintained
+F: drivers/net/usb/hso.c
HTCPEN TOUCHSCREEN DRIVER
P: Pau Oliva Fora
M: pof@eslack.org
L: linux-input@vger.kernel.org
S: Maintained
+F: drivers/input/touchscreen/htcpen.c
HUGETLB FILESYSTEM
P: William Irwin
M: wli@holomorphy.com
S: Maintained
+F: fs/hugetlbfs/
I2C/SMBUS STUB DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
L: linux-i2c@vger.kernel.org
S: Maintained
+F: drivers/i2c/busses/i2c-stub.c
I2C SUBSYSTEM
P: Jean Delvare (PC drivers, core)
@@ -2165,24 +2627,31 @@
W: http://i2c.wiki.kernel.org/
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
S: Maintained
+F: Documentation/i2c/
+F: drivers/i2c/
+F: include/linux/i2c.h
+F: include/linux/i2c-dev.h
+F: include/linux/i2c-id.h
I2C-TINY-USB DRIVER
P: Till Harbaum
M: till@harbaum.org
L: linux-i2c@vger.kernel.org
-T: http://www.harbaum.org/till/i2c_tiny_usb
+W: http://www.harbaum.org/till/i2c_tiny_usb
S: Maintained
+F: drivers/i2c/busses/i2c-tiny-usb.c
i386 BOOT CODE
P: H. Peter Anvin
M: hpa@zytor.com
L: Linux-Kernel@vger.kernel.org
S: Maintained
+F: arch/x86/boot/
i386 SETUP CODE / CPU ERRATA WORKAROUNDS
P: H. Peter Anvin
M: hpa@zytor.com
-T: git.kernel.org:/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git
S: Maintained
IA64 (Itanium) PLATFORM
@@ -2190,19 +2659,22 @@
M: tony.luck@intel.com
L: linux-ia64@vger.kernel.org
W: http://www.ia64-linux.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git
S: Maintained
+F: arch/ia64/
IBM MCA SCSI SUBSYSTEM DRIVER
P: Michael Lang
M: langa2@kph.uni-mainz.de
W: http://www.uni-mainz.de/~langm000/linux.html
S: Maintained
+F: drivers/scsi/ibmmca.c
IBM Power Linux RAID adapter
P: Brian King
M: brking@us.ibm.com
S: Supported
+F: drivers/scsi/ipr.*
IBM ServeRAID RAID DRIVER
P: Jack Hammer
@@ -2210,6 +2682,7 @@
M: ipslinux@adaptec.com
W: http://www.developer.ibm.com/welcome/netfinity/serveraid.html
S: Supported
+F: drivers/scsi/ips.*
IDE SUBSYSTEM
P: Bartlomiej Zolnierkiewicz
@@ -2217,45 +2690,55 @@
L: linux-ide@vger.kernel.org
T: quilt kernel.org/pub/linux/kernel/people/bart/pata-2.6/
S: Maintained
+F: Documentation/ide/
+F: drivers/ide/
+F: include/linux/ide.h
IDE/ATAPI DRIVERS
P: Borislav Petkov
M: petkovbb@gmail.com
L: linux-ide@vger.kernel.org
S: Maintained
+F: Documentation/cdrom/ide-cd
+F: drivers/ide/ide-cd*
IDLE-I7300
P: Andy Henroid
M: andrew.d.henroid@intel.com
L: linux-pm@lists.linux-foundation.org
S: Supported
+F: drivers/idle/i7300_idle.c
-IEEE 1394 SUBSYSTEM (drivers/ieee1394)
+IEEE 1394 SUBSYSTEM
P: Ben Collins
M: ben.collins@ubuntu.com
P: Stefan Richter
M: stefanr@s5r6.in-berlin.de
L: linux1394-devel@lists.sourceforge.net
W: http://www.linux1394.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
S: Maintained
+F: drivers/ieee1394/
-IEEE 1394 RAW I/O DRIVER (raw1394)
+IEEE 1394 RAW I/O DRIVER
P: Dan Dennedy
M: dan@dennedy.org
P: Stefan Richter
M: stefanr@s5r6.in-berlin.de
L: linux1394-devel@lists.sourceforge.net
S: Maintained
+F: drivers/ieee1394/raw1394*
INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
P: Mimi Zohar
M: zohar@us.ibm.com
S: Supported
+F: security/integrity/ima/
IMS TWINTURBO FRAMEBUFFER DRIVER
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Orphan
+F: drivers/video/imsttfb.c
INFINIBAND SUBSYSTEM
P: Roland Dreier
@@ -2266,8 +2749,11 @@
M: hal.rosenstock@gmail.com
L: general@lists.openfabrics.org (moderated for non-subscribers)
W: http://www.openib.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git
S: Supported
+F: Documentation/infiniband/
+F: drivers/infiniband/
+F: include/linux/if_infiniband.h
INOTIFY
P: John McCutchan
@@ -2276,26 +2762,33 @@
M: rlove@rlove.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/inotify.txt
+F: fs/notify/inotify/
+F: include/linux/inotify.h
INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN) DRIVERS
P: Dmitry Torokhov
M: dmitry.torokhov@gmail.com
M: dtor@mail.ru
L: linux-input@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/dtor/input.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
S: Maintained
+F: drivers/input/
INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
P: Sylvain Meyer
M: sylvain.meyer@worldonline.fr
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: Documentation/fb/intelfb.txt
+F: drivers/video/intelfb/
INTEL 810/815 FRAMEBUFFER DRIVER
P: Antonino Daplas
M: adaplas@gmail.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/i810/
INTEL MENLOW THERMAL DRIVER
P: Sujith Thomas
@@ -2303,46 +2796,61 @@
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
+F: drivers/platform/x86/intel_menlow.c
INTEL IA32 MICROCODE UPDATE SUPPORT
P: Tigran Aivazian
M: tigran@aivazian.fsnet.co.uk
S: Maintained
+F: arch/x86/kernel/microcode_core.c
+F: arch/x86/kernel/microcode_intel.c
INTEL I/OAT DMA DRIVER
P: Maciej Sosnowski
M: maciej.sosnowski@intel.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: drivers/dma/ioat*
INTEL IOMMU (VT-d)
P: David Woodhouse
M: dwmw2@infradead.org
L: iommu@lists.linux-foundation.org
-T: git://git.infradead.org/iommu-2.6.git
+T: git git://git.infradead.org/iommu-2.6.git
S: Supported
+F: drivers/pci/intel-iommu.c
+F: include/linux/intel-iommu.h
INTEL IOP-ADMA DMA DRIVER
P: Dan Williams
M: dan.j.williams@intel.com
L: linux-kernel@vger.kernel.org
S: Supported
+F: drivers/dma/iop-adma.c
INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT
P: Krzysztof Halasa
M: khc@pm.waw.pl
S: Maintained
+F: arch/arm/mach-ixp4xx/include/mach/qmgr.h
+F: arch/arm/mach-ixp4xx/include/mach/npe.h
+F: arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
+F: arch/arm/mach-ixp4xx/ixp4xx_npe.c
+F: drivers/net/arm/ixp4xx_eth.c
+F: drivers/net/wan/ixp4xx_hss.c
INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT
P: Deepak Saxena
M: dsaxena@plexity.net
S: Maintained
+F: drivers/char/hw_random/ixp4xx-rng.c
INTEL IXP2000 ETHERNET DRIVER
P: Lennert Buytenhek
M: kernel@wantstofly.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/ixp2000/
INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/ixgb/ixgbe)
P: Jeff Kirsher
@@ -2358,6 +2866,12 @@
L: e1000-devel@lists.sourceforge.net
W: http://e1000.sourceforge.net/
S: Supported
+F: drivers/net/e100.c
+F: drivers/net/e1000/
+F: drivers/net/e1000e/
+F: drivers/net/igb/
+F: drivers/net/ixgb/
+F: drivers/net/ixgbe/
INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT
P: Zhu Yi
@@ -2371,6 +2885,8 @@
W: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
W: http://ipw2100.sourceforge.net
S: Supported
+F: Documentation/networking/README.ipw2100
+F: drivers/net/wireless/ipw2x00/ipw2100.*
INTEL PRO/WIRELESS 2915ABG NETWORK CONNECTION SUPPORT
P: Zhu Yi
@@ -2384,6 +2900,8 @@
W: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
W: http://ipw2200.sourceforge.net
S: Supported
+F: Documentation/networking/README.ipw2200
+F: drivers/net/wireless/ipw2x00/ipw2200.*
INTEL WIRELESS WIMAX CONNECTION 2400
P: Inaky Perez-Gonzalez
@@ -2392,6 +2910,9 @@
L: wimax@linuxwimax.org
S: Supported
W: http://linuxwimax.org
+F: Documentation/wimax/README.i2400m
+F: drivers/net/wimax/i2400m/
+F: include/linux/wimax/i2400m.h
INTEL WIRELESS WIFI LINK (iwlwifi)
P: Zhu Yi
@@ -2401,25 +2922,29 @@
L: linux-wireless@vger.kernel.org
L: ipw3945-devel@lists.sourceforge.net
W: http://intellinuxwireless.org
-T: git kernel.org:/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6.git
S: Supported
+F: drivers/net/wireless/iwlwifi/
IOC3 ETHERNET DRIVER
P: Ralf Baechle
M: ralf@linux-mips.org
L: linux-mips@linux-mips.org
S: Maintained
+F: drivers/net/ioc3-eth.c
IOC3 SERIAL DRIVER
P: Pat Gefre
M: pfg@sgi.com
L: linux-mips@linux-mips.org
S: Maintained
+F: drivers/serial/ioc3_serial.c
IP MASQUERADING
P: Juanjo Ciarlante
M: jjciarla@raiz.uncu.edu.ar
S: Maintained
+F: net/ipv4/netfilter/ipt_MASQUERADE.c
IP1000A 10/100/1000 GIGABIT ETHERNET DRIVER
P: Francois Romieu
@@ -2430,6 +2955,7 @@
M: jesse@icplus.com.tw
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/ipg.c
IPATH DRIVER
P: Ralph Campbell
@@ -2437,6 +2963,7 @@
L: general@lists.openfabrics.org
T: git git://git.qlogic.com/ipath-linux-2.6
S: Supported
+F: drivers/infiniband/hw/ipath/
IPMI SUBSYSTEM
P: Corey Minyard
@@ -2444,6 +2971,9 @@
L: openipmi-developer@lists.sourceforge.net
W: http://openipmi.sourceforge.net/
S: Supported
+F: Documentation/IPMI.txt
+F: drivers/char/ipmi/
+F: include/linux/ipmi*
IPS SCSI RAID DRIVER
P: Adaptec OEM Raid Solutions
@@ -2451,6 +2981,7 @@
L: linux-scsi@vger.kernel.org
W: http://www.adaptec.com/
S: Maintained
+F: drivers/scsi/ips*
IPVS
P: Wensong Zhang
@@ -2462,6 +2993,8 @@
L: netdev@vger.kernel.org
L: lvs-devel@vger.kernel.org
S: Maintained
+F: Documentation/networking/ipvs-sysctl.txt
+F: net/netfilter/ipvs/
IPWIRELESS DRIVER
P: Jiri Kosina
@@ -2469,13 +3002,17 @@
P: David Sterba
M: dsterba@suse.cz
S: Maintained
-T: git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/ipwireless_cs.git
+F: drivers/char/pcmcia/ipwireless/
IPX NETWORK LAYER
P: Arnaldo Carvalho de Melo
M: acme@ghostprotocols.net
L: netdev@vger.kernel.org
S: Maintained
+F: include/linux/ipx.h
+F: include/net/ipx.h
+F: net/ipx/
IRDA SUBSYSTEM
P: Samuel Ortiz
@@ -2483,27 +3020,40 @@
L: irda-users@lists.sourceforge.net (subscribers-only)
W: http://irda.sourceforge.net/
S: Maintained
+F: Documentation/networking/irda.txt
+F: drivers/net/irda/
+F: include/net/irda/
+F: net/irda/
ISAPNP
P: Jaroslav Kysela
M: perex@perex.cz
S: Maintained
+F: Documentation/isapnp.txt
+F: drivers/pnp/isapnp/
+F: include/linux/isapnp.h
ISCSI
P: Mike Christie
M: michaelc@cs.wisc.edu
L: open-iscsi@googlegroups.com
W: www.open-iscsi.org
-T: git kernel.org:/pub/scm/linux/kernel/mnc/linux-2.6-iscsi.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mnc/linux-2.6-iscsi.git
S: Maintained
+F: drivers/scsi/*iscsi*
+F: include/scsi/*iscsi*
ISDN SUBSYSTEM
P: Karsten Keil
M: isdn@linux-pingi.de
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
W: http://www.isdn4linux.de
-T: git kernel.org:/pub/scm/linux/kernel/kkeil/isdn-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/isdn-2.6.git
S: Maintained
+F: Documentation/isdn/
+F: drivers/isdn/
+F: include/linux/isdn.h
+F: include/linux/isdn/
ISDN SUBSYSTEM (Eicon active card driver)
P: Armin Schindler
@@ -2511,6 +3061,7 @@
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
W: http://www.melware.de
S: Maintained
+F: drivers/isdn/hardware/eicon/
IVTV VIDEO4LINUX DRIVER
P: Hans Verkuil
@@ -2518,23 +3069,29 @@
L: ivtv-devel@ivtvdriver.org
L: ivtv-users@ivtvdriver.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.ivtvdriver.org
S: Maintained
+F: Documentation/video4linux/*.ivtv
+F: drivers/media/video/ivtv/
+F: include/linux/ivtv*
JFS FILESYSTEM
P: Dave Kleikamp
M: shaggy@austin.ibm.com
L: jfs-discussion@lists.sourceforge.net
W: http://jfs.sourceforge.net/
-T: git kernel.org:/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6.git
S: Supported
+F: Documentation/filesystems/jfs.txt
+F: fs/jfs/
JME NETWORK DRIVER
P: Guo-Fu Tseng
M: cooldavid@cooldavid.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/jme.*
JOURNALLING FLASH FILE SYSTEM V2 (JFFS2)
P: David Woodhouse
@@ -2542,24 +3099,36 @@
L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/doc/jffs2.html
S: Maintained
+F: fs/jffs2/
+F: include/linux/jffs2.h
+F: include/mtd/jffs2-user.h
JOURNALLING LAYER FOR BLOCK DEVICES (JBD)
-P: Stephen Tweedie, Andrew Morton
-M: sct@redhat.com, akpm@linux-foundation.org
+P: Stephen Tweedie
+M: sct@redhat.com
+P: Andrew Morton
+M: akpm@linux-foundation.org
L: linux-ext4@vger.kernel.org
S: Maintained
+F: fs/jbd*/
+F: include/linux/ext*jbd*.h
+F: include/linux/jbd*.h
K8TEMP HARDWARE MONITORING DRIVER
P: Rudolf Marek
M: r.marek@assembler.cz
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/k8temp
+F: drivers/hwmon/k8temp.c
KCONFIG
P: Roman Zippel
M: zippel@linux-m68k.org
L: linux-kbuild@vger.kernel.org
S: Maintained
+F: Documentation/kbuild/kconfig-language.txt
+F: scripts/kconfig/
KDUMP
P: Vivek Goyal
@@ -2570,26 +3139,32 @@
L: linux-kernel@vger.kernel.org
W: http://lse.sourceforge.net/kdump/
S: Maintained
+F: Documentation/kdump/
KERNEL AUTOMOUNTER (AUTOFS)
P: H. Peter Anvin
M: hpa@zytor.com
L: autofs@linux.kernel.org
S: Odd Fixes
+F: fs/autofs/
KERNEL AUTOMOUNTER v4 (AUTOFS4)
P: Ian Kent
M: raven@themaw.net
L: autofs@linux.kernel.org
S: Maintained
+F: fs/autofs4/
-KERNEL BUILD (kbuild: Makefile, scripts/Makefile.*)
+KERNEL BUILD
P: Sam Ravnborg
M: sam@ravnborg.org
-T: git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild-next.git
-T: git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild-fixes.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes.git
L: linux-kbuild@vger.kernel.org
S: Maintained
+F: Documentation/kbuild/
+F: Makefile
+F: scripts/Makefile.*
KERNEL JANITORS
P: Several
@@ -2605,6 +3180,13 @@
L: linux-nfs@vger.kernel.org
W: http://nfs.sourceforge.net/
S: Supported
+F: fs/nfsd/
+F: include/linux/nfsd/
+F: fs/lockd/
+F: fs/nfs_common/
+F: net/sunrpc/
+F: include/linux/lockd/
+F: include/linux/sunrpc/
KERNEL VIRTUAL MACHINE (KVM)
P: Avi Kivity
@@ -2612,6 +3194,11 @@
L: kvm@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
+F: Documentation/*/kvm.txt
+F: arch/*/kvm/
+F: arch/*/include/asm/kvm*
+F: include/linux/kvm*
+F: virt/kvm/
KERNEL VIRTUAL MACHINE (KVM) FOR AMD-V
P: Joerg Roedel
@@ -2619,6 +3206,9 @@
L: kvm@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
+F: arch/x86/include/asm/svm.h
+F: arch/x86/kvm/kvm_svm.h
+F: arch/x86/kvm/svm.c
KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
P: Hollis Blanchard
@@ -2626,6 +3216,8 @@
L: kvm-ppc@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
+F: arch/powerpc/include/asm/kvm*
+F: arch/powerpc/kvm/
KERNEL VIRTUAL MACHINE For Itanium (KVM/IA64)
P: Xiantao Zhang
@@ -2633,6 +3225,9 @@
L: kvm-ia64@vger.kernel.org
W: http://kvm.qumranet.com
S: Supported
+F: Documentation/ia64/kvm.txt
+F: arch/ia64/include/asm/kvm*
+F: arch/ia64/kvm/
KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
P: Carsten Otte
@@ -2643,6 +3238,9 @@
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+F: Documentation/s390/kvm.txt
+F: arch/s390/include/asm/kvm*
+F: arch/s390/kvm/
KEXEC
P: Eric Biederman
@@ -2651,18 +3249,28 @@
L: linux-kernel@vger.kernel.org
L: kexec@lists.infradead.org
S: Maintained
+F: include/linux/kexec.h
+F: kernel/kexec.c
KGDB
P: Jason Wessel
M: jason.wessel@windriver.com
L: kgdb-bugreport@lists.sourceforge.net
S: Maintained
+F: Documentation/DocBook/kgdb.tmpl
+F: drivers/misc/kgdbts.c
+F: drivers/serial/kgdboc.c
+F: include/linux/kgdb.h
+F: kernel/kgdb.c
KMEMTRACE
P: Eduard - Gabriel Munteanu
M: eduard.munteanu@linux360.ro
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/vm/kmemtrace.txt
+F: include/trace/kmemtrace.h
+F: kernel/trace/kmemtrace.c
KPROBES
P: Ananth N Mavinakayanahalli
@@ -2675,6 +3283,9 @@
M: mhiramat@redhat.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/kprobes.txt
+F: include/linux/kprobes.h
+F: kernel/kprobes.c
KS0108 LCD CONTROLLER DRIVER
P: Miguel Ojeda Sandonis
@@ -2683,21 +3294,31 @@
W: http://miguelojeda.es/auxdisplay.htm
W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm
S: Maintained
+F: Documentation/auxdisplay/ks0108
+F: drivers/auxdisplay/ks0108.c
+F: include/linux/ks0108.h
LAPB module
L: linux-x25@vger.kernel.org
S: Orphan
+F: Documentation/networking/lapb-module.txt
+F: include/*/lapb.h
+F: net/lapb/
LASI 53c700 driver for PARISC
P: James E.J. Bottomley
M: James.Bottomley@HansenPartnership.com
L: linux-scsi@vger.kernel.org
S: Maintained
+F: Documentation/scsi/53c700.txt
+F: drivers/scsi/53c700*
LED SUBSYSTEM
P: Richard Purdie
M: rpurdie@rpsys.net
S: Maintained
+F: drivers/leds/
+F: include/linux/leds.h
LEGO USB Tower driver
P: Juergen Stuber
@@ -2705,6 +3326,7 @@
L: legousb-devel@lists.sourceforge.net
W: http://legousb.sourceforge.net/
S: Maintained
+F: drivers/usb/misc/legousbtower.c
LGUEST
P: Rusty Russell
@@ -2712,6 +3334,11 @@
L: lguest@ozlabs.org
W: http://lguest.ozlabs.org/
S: Maintained
+F: Documentation/lguest/
+F: arch/x86/lguest/
+F: drivers/lguest/
+F: include/linux/lguest*.h
+F: arch/x86/include/asm/lguest*.h
LINUX FOR IBM pSERIES (RS/6000)
P: Paul Mackerras
@@ -2719,12 +3346,6 @@
W: http://www.ibm.com/linux/ltc/projects/ppc
S: Supported
-LINUX FOR NCR VOYAGER
-P: James Bottomley
-M: James.Bottomley@HansenPartnership.com
-W: http://www.hansenpartnership.com/voyager
-S: Maintained
-
LINUX FOR POWERPC (32-BIT AND 64-BIT)
P: Benjamin Herrenschmidt
M: benh@kernel.crashing.org
@@ -2732,7 +3353,7 @@
M: paulus@samba.org
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
-T: git kernel.org:/pub/scm/linux/kernel/git/benh/powerpc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
S: Supported
LINUX FOR POWER MACINTOSH
@@ -2757,7 +3378,7 @@
M: mporter@kernel.crashing.org
W: http://www.penguinppc.org/
L: linuxppc-dev@ozlabs.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc.git
S: Maintained
LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
@@ -2794,30 +3415,39 @@
P: Chris Wright
M: chrisw@sous-sol.org
L: linux-security-module@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
S: Supported
LLC (802.2)
P: Arnaldo Carvalho de Melo
M: acme@ghostprotocols.net
S: Maintained
+F: include/linux/llc.h
+F: include/net/llc*
+F: net/llc/
LIS3LV02D ACCELEROMETER DRIVER
P: Eric Piel
M: eric.piel@tremplin-utc.net
S: Maintained
+F: Documentation/hwmon/lis3lv02d
+F: drivers/hwmon/lis3lv02d.*
LM83 HARDWARE MONITOR DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/lm83
+F: drivers/hwmon/lm83.c
LM90 HARDWARE MONITOR DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/lm90
+F: drivers/hwmon/lm90.c
LOCKDEP AND LOCKSTAT
P: Peter Zijlstra
@@ -2825,8 +3455,12 @@
P: Ingo Molnar
M: mingo@redhat.com
L: linux-kernel@vger.kernel.org
-T: git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
S: Maintained
+F: Documentation/lockdep*.txt
+F: Documentation/lockstat.txt
+F: include/linux/lockdep.h
+F: kernel/lockdep*
LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks)
P: Richard Russon (FlatCap)
@@ -2834,6 +3468,8 @@
L: linux-ntfs-dev@lists.sourceforge.net
W: http://www.linux-ntfs.org/content/view/19/37/
S: Maintained
+F: Documentation/ldm.txt
+F: fs/partitions/ldm.*
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
P: Eric Moore
@@ -2843,12 +3479,14 @@
L: linux-scsi@vger.kernel.org
W: http://www.lsilogic.com/support
S: Supported
+F: drivers/message/fusion/
LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers
P: Matthew Wilcox
M: matthew@wil.cx
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/sym53c8xx_2/
LTP (Linux Test Project)
P: Subrata Modak
@@ -2857,7 +3495,7 @@
M: vapier@gentoo.org
L: ltp-list@lists.sourceforge.net (subscribers-only)
W: http://ltp.sourceforge.net/
-T: git kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
S: Maintained
M32R ARCHITECTURE
@@ -2867,6 +3505,8 @@
L: linux-m32r-ja@ml.linux-m32r.org (in Japanese)
W: http://www.linux-m32r.org/
S: Maintained
+F: arch/m32r/
+F: include/asm-m32r/
M68K ARCHITECTURE
P: Geert Uytterhoeven
@@ -2875,8 +3515,10 @@
M: zippel@linux-m68k.org
L: linux-m68k@lists.linux-m68k.org
W: http://www.linux-m68k.org/
-T: git git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git
S: Maintained
+F: arch/m68k/
+F: drivers/zorro/
M68K ON APPLE MACINTOSH
P: Joshua Thompson
@@ -2884,20 +3526,25 @@
W: http://www.mac.linux-m68k.org/
L: linux-m68k@lists.linux-m68k.org
S: Maintained
+F: arch/m68k/mac/
M68K ON HP9000/300
P: Philip Blundell
M: philb@gnu.org
W: http://www.tazenda.demon.co.uk/phil/linux-hp
S: Maintained
+F: arch/m68k/hp300/
MAC80211
P: Johannes Berg
M: johannes@sipsolutions.net
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
S: Maintained
+F: Documentation/networking/mac80211-injection.txt
+F: include/net/mac80211.h
+F: net/mac80211/
MAC80211 PID RATE CONTROL
P: Stefano Brivio
@@ -2906,14 +3553,17 @@
M: mattias.nissler@gmx.de
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/en/developers/Documentation/mac80211/RateControl/PID
-T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
S: Maintained
+F: net/mac80211/rc80211_pid*
MACVLAN DRIVER
P: Patrick McHardy
M: kaber@trash.net
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/macvlan.c
+F: include/linux/if_macvlan.h
MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
P: Michael Kerrisk
@@ -2927,12 +3577,15 @@
M: dcbw@redhat.com
L: libertas-dev@lists.infradead.org
S: Maintained
+F: drivers/net/wireless/libertas/
MARVELL MV643XX ETHERNET DRIVER
P: Lennert Buytenhek
M: buytenh@marvell.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/mv643xx_eth.*
+F: include/linux/mv643xx.h
MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
P: Nicolas Pitre
@@ -2953,12 +3606,31 @@
M: vandrove@vc.cvut.cz
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/matrox/matroxfb_*
+F: include/linux/matroxfb.h
MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
P: Hans J. Koch
M: hjk@linutronix.de
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/max6650
+F: drivers/hwmon/max6650.c
+
+MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
+P: Mauro Carvalho Chehab
+M: mchehab@infradead.org
+P: LinuxTV.org Project
+L: linux-media@vger.kernel.org
+W: http://linuxtv.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+S: Maintained
+F: Documentation/dvb/
+F: Documentation/video4linux/
+F: drivers/media/
+F: include/media/
+F: include/linux/dvb/
+F: include/linux/videodev*.h
MEGARAID SCSI DRIVERS
P: Neela Syam Kolli
@@ -2966,12 +3638,17 @@
L: linux-scsi@vger.kernel.org
W: http://megaraid.lsilogic.com
S: Maintained
+F: Documentation/scsi/megaraid.txt
+F: drivers/scsi/megaraid.*
+F: drivers/scsi/megaraid/
MEMORY MANAGEMENT
L: linux-mm@kvack.org
L: linux-kernel@vger.kernel.org
W: http://www.linux-mm.org
S: Maintained
+F: include/linux/mm.h
+F: mm/
MEMORY RESOURCE CONTROLLER
P: Balbir Singh
@@ -2983,6 +3660,7 @@
L: linux-mm@kvack.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: mm/memcontrol.c
MEMORY TECHNOLOGY DEVICES (MTD)
P: David Woodhouse
@@ -2991,55 +3669,84 @@
L: linux-mtd@lists.infradead.org
T: git git://git.infradead.org/mtd-2.6.git
S: Maintained
+F: drivers/mtd/
+F: include/linux/mtd/
+F: include/mtd/
+
+MICROBLAZE ARCHITECTURE
+P: Michal Simek
+M: monstr@monstr.eu
+L: microblaze-uclinux@itee.uq.edu.au
+W: http://www.monstr.eu/fdt/
+T: git git://git.monstr.eu/linux-2.6-microblaze.git
+S: Supported
+F: arch/microblaze/
MICROTEK X6 SCANNER
P: Oliver Neukum
M: oliver@neukum.name
S: Maintained
+F: drivers/usb/image/microtek.*
MIPS
P: Ralf Baechle
M: ralf@linux-mips.org
W: http://www.linux-mips.org/
L: linux-mips@linux-mips.org
-T: git www.linux-mips.org:/pub/scm/linux.git
+T: git git://git.linux-mips.org/pub/scm/linux.git
S: Supported
+F: Documentation/mips/
+F: arch/mips/
MISCELLANEOUS MCA-SUPPORT
P: James Bottomley
M: James.Bottomley@HansenPartnership.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/ia64/mca.txt
+F: Documentation/mca.txt
+F: drivers/mca/
+F: include/linux/mca*
MODULE SUPPORT
P: Rusty Russell
M: rusty@rustcorp.com.au
L: linux-kernel@vger.kernel.org
S: Maintained
+F: include/linux/module.h
+F: kernel/module.c
MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER
P: Stelian Pop
M: stelian@popies.net
W: http://popies.net/meye/
S: Maintained
+F: Documentation/video4linux/meye.txt
+F: drivers/media/video/meye.*
+F: include/linux/meye.h
MOTOROLA IMX MMC/SD HOST CONTROLLER INTERFACE DRIVER
P: Pavel Pisa
M: ppisa@pikron.com
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
S: Maintained
+F: drivers/mmc/host/imxmmc.*
MOUSE AND MISC DEVICES [GENERAL]
P: Alessandro Rubini
M: rubini@ipvvis.unipv.it
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/input/mouse/
+F: include/linux/gpio_mouse.h
MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD
P: Jiri Slaby
M: jirislaby@gmail.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/serial/moxa-smartio
+F: drivers/char/mxser.*
MSI LAPTOP SUPPORT
P: Lennart Poettering
@@ -3047,43 +3754,54 @@
W: https://tango.0pointer.de/mailman/listinfo/s270-linux
W: http://0pointer.de/lennart/tchibo.html
S: Maintained
+F: drivers/platform/x86/msi-laptop.c
MULTIFUNCTION DEVICES (MFD)
P: Samuel Ortiz
M: sameo@linux.intel.com
L: linux-kernel@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git
S: Supported
+F: drivers/mfd/
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
P: Pierre Ossman
M: pierre@ossman.eu
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/mmc/
+F: include/linux/mmc/
MULTIMEDIA CARD (MMC) ETC. OVER SPI
P: David Brownell
M: dbrownell@users.sourceforge.net
L: linux-kernel@vger.kernel.org
S: Odd Fixes
+F: drivers/mmc/host/mmc_spi.c
+F: include/linux/spi/mmc_spi.h
MULTISOUND SOUND DRIVER
P: Andrew Veliath
M: andrewtv@usa.net
S: Maintained
+F: Documentation/sound/oss/MultiSound
+F: sound/oss/msnd*
MULTITECH MULTIPORT CARD (ISICOM)
P: Jiri Slaby
M: jirislaby@gmail.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/char/isicom.c
+F: include/linux/isicom.h
MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
P: Felipe Balbi
M: felipe.balbi@nokia.com
L: linux-usb@vger.kernel.org
-T: git gitorious.org:/musb/mainline.git
+T: git git://gitorious.org/musb/mainline.git
S: Maintained
+F: drivers/usb/musb/
MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE)
P: Andrew Gallatin
@@ -3093,23 +3811,27 @@
L: netdev@vger.kernel.org
W: http://www.myri.com/scs/download-Myri10GE.html
S: Supported
+F: drivers/net/myri10ge/
NATSEMI ETHERNET DRIVER (DP8381x)
P: Tim Hockin
M: thockin@hockin.org
S: Maintained
+F: drivers/net/natsemi.c
NCP FILESYSTEM
P: Petr Vandrovec
M: vandrove@vc.cvut.cz
L: linware@sh.cvut.cz
S: Maintained
+F: fs/ncpfs/
NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
P: James E.J. Bottomley
M: James.Bottomley@HansenPartnership.com
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/NCR_D700.*
NETEFFECT IWARP RNIC DRIVER (IW_NES)
P: Faisal Latif
@@ -3126,6 +3848,7 @@
M: shemminger@linux-foundation.org
L: netem@lists.linux-foundation.org
S: Maintained
+F: net/sched/sch_netem.c
NETERION (S2IO) 10GbE DRIVER (xframe/vxge)
P: Ramkrishna Vepa
@@ -3142,6 +3865,8 @@
W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/Linux?Anonymous
W: http://trac.neterion.com/cgi-bin/trac.cgi/wiki/X3100Linux?Anonymous
S: Supported
+F: Documentation/networking/s2io.txt
+F: drivers/net/s2io*
NETFILTER/IPTABLES/IPCHAINS
P: Rusty Russell
@@ -3157,6 +3882,12 @@
W: http://www.netfilter.org/
W: http://www.iptables.org/
S: Supported
+F: include/linux/netfilter*
+F: include/linux/netfilter/
+F: include/net/netfilter/
+F: net/*/netfilter.c
+F: net/*/netfilter/
+F: net/netfilter/
NETLABEL
P: Paul Moore
@@ -3164,6 +3895,9 @@
W: http://netlabel.sf.net
L: netdev@vger.kernel.org
S: Supported
+F: Documentation/netlabel/
+F: include/net/netlabel.h
+F: net/netlabel/
NETROM NETWORK LAYER
P: Ralf Baechle
@@ -3171,18 +3905,25 @@
L: linux-hams@vger.kernel.org
W: http://www.linux-ax25.org/
S: Maintained
+F: include/linux/netrom.h
+F: include/net/netrom.h
+F: net/netrom/
NETWORK BLOCK DEVICE (NBD)
P: Paul Clements
M: Paul.Clements@steeleye.com
S: Maintained
+F: Documentation/blockdev/nbd.txt
+F: drivers/block/nbd.c
+F: include/linux/nbd.h
NETWORK DEVICE DRIVERS
P: Jeff Garzik
M: jgarzik@pobox.com
L: netdev@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git
S: Maintained
+F: drivers/net/
NETWORKING [GENERAL]
P: Networking Team
@@ -3190,6 +3931,8 @@
L: netdev@vger.kernel.org
W: http://linux-net.osdl.org/
S: Maintained
+F: net/
+F: include/net/
NETWORKING [IPv4/IPv6]
P: David S. Miller
@@ -3205,8 +3948,11 @@
P: Patrick McHardy
M: kaber@trash.net
L: netdev@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
S: Maintained
+F: net/ipv4/
+F: net/ipv6/
+F: include/net/ip*
NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK)
P: Paul Moore
@@ -3218,8 +3964,11 @@
P: John W. Linville
M: linville@tuxdriver.com
L: linux-wireless@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git
S: Maintained
+F: net/wireless/
+F: include/net/ieee80211*
+F: include/net/wireless.h
NETXEN (1/10) GbE SUPPORT
P: Dhananjay Phadke
@@ -3227,6 +3976,7 @@
L: netdev@vger.kernel.org
W: http://www.netxen.com
S: Supported
+F: drivers/net/netxen/
NFS, SUNRPC, AND LOCKD CLIENTS
P: Trond Myklebust
@@ -3235,6 +3985,13 @@
W: http://client.linux-nfs.org
T: git git://git.linux-nfs.org/pub/linux/nfs-2.6.git
S: Maintained
+F: fs/lockd/
+F: fs/nfs/
+F: fs/nfs_common/
+F: net/sunrpc/
+F: include/linux/lockd/
+F: include/linux/nfs*
+F: include/linux/sunrpc/
NI5010 NETWORK DRIVER
P: Jan-Pascal van Best
@@ -3243,6 +4000,7 @@
M: andi@lisas.de
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/ni5010.*
NILFS2 FILESYSTEM
P: KONISHI Ryusuke
@@ -3250,12 +4008,17 @@
L: users@nilfs.org
W: http://www.nilfs.org/en/
S: Supported
+F: Documentation/filesystems/nilfs2.txt
+F: fs/nilfs2/
+F: include/linux/nilfs2_fs.h
NINJA SCSI-3 / NINJA SCSI-32Bi (16bit/CardBus) PCMCIA SCSI HOST ADAPTER DRIVER
P: YOKOTA Hiroshi
M: yokota@netlab.is.tsukuba.ac.jp
W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
S: Maintained
+F: Documentation/scsi/NinjaSCSI.txt
+F: drivers/scsi/pcmcia/nsp_*
NINJA SCSI-32Bi/UDE PCI/CARDBUS SCSI HOST ADAPTER DRIVER
P: GOTO Masanori
@@ -3264,6 +4027,8 @@
M: yokota@netlab.is.tsukuba.ac.jp
W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
S: Maintained
+F: Documentation/scsi/NinjaSCSI.txt
+F: drivers/scsi/nsp32*
NTFS FILESYSTEM
P: Anton Altaparmakov
@@ -3271,43 +4036,55 @@
L: linux-ntfs-dev@lists.sourceforge.net
L: linux-kernel@vger.kernel.org
W: http://www.linux-ntfs.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git
S: Maintained
+F: Documentation/filesystems/ntfs.txt
+F: fs/ntfs/
NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER
P: Antonino Daplas
M: adaplas@gmail.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/riva/
+F: drivers/video/nvidia/
OMFS FILESYSTEM
P: Bob Copeland
M: me@bobcopeland.com
L: linux-karma-devel@lists.sourceforge.net
S: Maintained
+F: Documentation/filesystems/omfs.txt
+F: fs/omfs/
OMNIKEY CARDMAN 4000 DRIVER
P: Harald Welte
M: laforge@gnumonks.org
S: Maintained
+F: drivers/char/pcmcia/cm4000_cs.c
+F: include/linux/cm4000_cs.h
OMNIKEY CARDMAN 4040 DRIVER
P: Harald Welte
M: laforge@gnumonks.org
S: Maintained
+F: drivers/char/pcmcia/cm4040_cs.*
OMNIVISION OV7670 SENSOR DRIVER
P: Jonathan Corbet
M: corbet@lwn.net
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: drivers/media/video/ov7670.c
ONENAND FLASH DRIVER
P: Kyungmin Park
M: kyungmin.park@samsung.com
L: linux-mtd@lists.infradead.org
S: Maintained
+F: drivers/mtd/onenand/
+F: include/linux/mtd/onenand*.h
ONSTREAM SCSI TAPE DRIVER
P: Willem Riede
@@ -3315,18 +4092,25 @@
L: osst-users@lists.sourceforge.net
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/osst*
+F: drivers/scsi/st*
OPENCORES I2C BUS DRIVER
P: Peter Korsgaard
M: jacmet@sunsite.dk
L: linux-i2c@vger.kernel.org
S: Maintained
+F: Documentation/i2c/busses/i2c-ocores
+F: drivers/i2c/busses/i2c-ocores.c
OPROFILE
P: Robert Richter
M: robert.richter@amd.com
L: oprofile-list@lists.sf.net
S: Maintained
+F: arch/*/oprofile/
+F: drivers/oprofile/
+F: include/linux/oprofile.h
ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
P: Mark Fasheh
@@ -3337,6 +4121,9 @@
W: http://oss.oracle.com/projects/ocfs2/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2.git
S: Supported
+F: Documentation/filesystems/ocfs2.txt
+F: Documentation/filesystems/dlmfs.txt
+F: fs/ocfs2/
ORINOCO DRIVER
P: Pavel Roskin
@@ -3348,6 +4135,7 @@
L: orinoco-devel@lists.sourceforge.net
W: http://www.nongnu.org/orinoco/
S: Maintained
+F: drivers/net/wireless/orinoco/
OSD LIBRARY
P: Boaz Harrosh
@@ -3356,7 +4144,7 @@
M: bhalevy@panasas.com
L: osd-dev@open-osd.org
W: http://open-osd.org
-T: git://git.open-osd.org/open-osd.git
+T: git git://git.open-osd.org/open-osd.git
S: Maintained
P54 WIRELESS DRIVER
@@ -3364,25 +4152,29 @@
M: flamingice@sourmilk.net
L: linux-wireless@vger.kernel.org
W: http://prism54.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
S: Maintained
+F: drivers/net/wireless/p54/
PA SEMI ETHERNET DRIVER
P: Olof Johansson
M: olof@lixom.net
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/pasemi_mac.*
PA SEMI SMBUS DRIVER
P: Olof Johansson
M: olof@lixom.net
L: linux-i2c@vger.kernel.org
S: Maintained
+F: drivers/i2c/busses/i2c-pasemi.c
PANASONIC LAPTOP ACPI EXTRAS DRIVER
P: Harald Welte
M: laforge@gnumonks.org
S: Maintained
+F: drivers/platform/x86/panasonic-laptop.c
PANASONIC MN10300/AM33 PORT
P: David Howells
@@ -3392,10 +4184,16 @@
L: linux-am33-list@redhat.com (moderated for non-subscribers)
W: ftp://ftp.redhat.com/pub/redhat/gnupro/AM33/
S: Maintained
+F: Documentation/mn10300/
+F: arch/mn10300/
PARALLEL PORT SUPPORT
L: linux-parport@lists.infradead.org (subscribers-only)
S: Orphan
+F: drivers/parport/
+F: include/linux/parport*.h
+F: drivers/char/ppdev.c
+F: include/linux/ppdev.h
PARAVIRT_OPS INTERFACE
P: Jeremy Fitzhardinge
@@ -3409,6 +4207,9 @@
L: virtualization@lists.osdl.org
L: linux-kernel@vger.kernel.org
S: Supported
+F: Documentation/ia64/paravirt_ops.txt
+F: arch/*/kernel/paravirt*
+F: arch/*/include/asm/paravirt.h
PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES
P: Tim Waugh
@@ -3416,6 +4217,8 @@
L: linux-parport@lists.infradead.org (subscribers-only)
W: http://www.torque.net/linux-pp.html
S: Maintained
+F: Documentation/blockdev/paride.txt
+F: drivers/block/paride/
PARISC ARCHITECTURE
P: Kyle McMartin
@@ -3424,24 +4227,31 @@
M: deller@gmx.de
L: linux-parisc@vger.kernel.org
W: http://www.parisc-linux.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6.git
S: Maintained
+F: arch/parisc/
+F: drivers/parisc/
PC87360 HARDWARE MONITORING DRIVER
P: Jim Cromie
M: jim.cromie@gmail.com
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/pc87360
+F: drivers/hwmon/pc87360.c
PC8736x GPIO DRIVER
P: Jim Cromie
M: jim.cromie@gmail.com
S: Maintained
+F: drivers/char/pc8736x_gpio.c
PCA9532 LED DRIVER
P: Riku Voipio
M: riku.voipio@iki.fi
S: Maintained
+F: drivers/leds/leds-pca9532.c
+F: include/linux/leds-pca9532.h
PCI ERROR RECOVERY
P: Linas Vepstas
@@ -3449,63 +4259,82 @@
L: linux-kernel@vger.kernel.org
L: linux-pci@vger.kernel.org
S: Supported
+F: Documentation/PCI/pci-error-recovery.txt
+F: Documentation/powerpc/eeh-pci-error-recovery.txt
PCI SUBSYSTEM
P: Jesse Barnes
M: jbarnes@virtuousgeek.org
L: linux-kernel@vger.kernel.org
L: linux-pci@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
S: Supported
+F: Documentation/PCI/
+F: drivers/pci/
+F: include/linux/pci*
PCIE HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/pcie/
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: linux-pcmcia@lists.infradead.org
W: http://lists.infradead.org/mailman/listinfo/linux-pcmcia
-T: git kernel.org:/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6.git
S: Maintained
+F: Documentation/pcmcia/
+F: drivers/pcmcia/
+F: include/pcmcia/
PCNET32 NETWORK DRIVER
P: Don Fry
M: pcnet32@verizon.net
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/pcnet32.c
PER-TASK DELAY ACCOUNTING
P: Balbir Singh
M: balbir@linux.vnet.ibm.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: include/linux/delayacct.h
+F: kernel/delayacct.c
PERSONALITY HANDLING
P: Christoph Hellwig
M: hch@infradead.org
L: linux-abi-devel@lists.sourceforge.net
S: Maintained
+F: include/linux/personality.h
PHRAM MTD DRIVER
P: Joern Engel
M: joern@lazybastard.org
L: linux-mtd@lists.infradead.org
S: Maintained
+F: drivers/mtd/devices/phram.c
PKTCDVD DRIVER
P: Peter Osterlund
M: petero2@telia.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/block/pktcdvd.c
+F: include/linux/pktcdvd.h
POSIX CLOCKS and TIMERS
P: Thomas Gleixner
M: tglx@linutronix.de
L: linux-kernel@vger.kernel.org
S: Supported
+F: fs/timerfd.c
+F: include/linux/timer*
+F: kernel/*timer*
POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
P: Anton Vorontsov
@@ -3513,8 +4342,10 @@
P: David Woodhouse
M: dwmw2@infradead.org
L: linux-kernel@vger.kernel.org
-T: git git.infradead.org/battery-2.6.git
+T: git git://git.infradead.org/battery-2.6.git
S: Maintained
+F: include/linux/power_supply.h
+F: drivers/power/power_supply*
PNP SUPPORT
P: Adam Belay
@@ -3522,33 +4353,42 @@
P: Bjorn Helgaas
M: bjorn.helgaas@hp.com
S: Maintained
+F: drivers/pnp/
PNXxxxx I2C DRIVER
P: Vitaly Wool
M: vitalywool@gmail.com
L: linux-i2c@vger.kernel.org
S: Maintained
+F: drivers/i2c/busses/i2c-pnx.c
PPP PROTOCOL DRIVERS AND COMPRESSORS
P: Paul Mackerras
M: paulus@samba.org
L: linux-ppp@vger.kernel.org
S: Maintained
+F: drivers/net/ppp_*
PPP OVER ATM (RFC 2364)
P: Mitchell Blank Jr
M: mitch@sfgoth.com
S: Maintained
+F: net/atm/pppoatm.c
+F: include/linux/atmppp.h
PPP OVER ETHERNET
P: Michal Ostrowski
M: mostrows@earthlink.net
S: Maintained
+F: drivers/net/pppoe.c
+F: drivers/net/pppox.c
PPP OVER L2TP
P: James Chapman
M: jchapman@katalix.com
S: Maintained
+F: drivers/net/pppol2tp.c
+F: include/linux/if_pppol2tp.h
PREEMPTIBLE KERNEL
P: Robert Love
@@ -3557,6 +4397,8 @@
L: kpreempt-tech@lists.sourceforge.net
W: ftp://ftp.kernel.org/pub/linux/kernel/people/rml/preempt-kernel
S: Supported
+F: Documentation/preempt-locking.txt
+F: include/linux/preempt.h
PRISM54 WIRELESS DRIVER
P: Luis R. Rodriguez
@@ -3564,6 +4406,7 @@
L: linux-wireless@vger.kernel.org
W: http://prism54.org
S: Maintained
+F: drivers/net/wireless/prism54/
PROMISE DC4030 CACHING DISK CONTROLLER DRIVER
P: Peter Denison
@@ -3576,6 +4419,7 @@
M: mikpe@it.uu.se
L: linux-ide@vger.kernel.org
S: Maintained
+F: drivers/ata/sata_promise.*
PS3 NETWORK SUPPORT
P: Masakazu Mokuno
@@ -3583,6 +4427,7 @@
L: netdev@vger.kernel.org
L: cbe-oss-dev@ozlabs.org
S: Supported
+F: drivers/net/ps3_gelic_net.*
PS3 PLATFORM SUPPORT
P: Geoff Levand
@@ -3590,6 +4435,13 @@
L: linuxppc-dev@ozlabs.org
L: cbe-oss-dev@ozlabs.org
S: Supported
+F: arch/powerpc/boot/ps3*
+F: arch/powerpc/include/asm/lv1call.h
+F: arch/powerpc/include/asm/ps3*.h
+F: arch/powerpc/platforms/ps3/
+F: drivers/*/ps3*
+F: drivers/ps3/
+F: drivers/usb/host/*ps3.c
PS3VRAM DRIVER
P: Jim Paris
@@ -3603,8 +4455,10 @@
L: pvrusb2@isely.net (subscribers-only)
L: linux-media@vger.kernel.org
W: http://www.isely.net/pvrusb2/
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: Documentation/video4linux/README.pvrusb2
+F: drivers/media/video/pvrusb2/
PXA2xx/PXA3xx SUPPORT
P: Eric Miao
@@ -3613,6 +4467,12 @@
M: linux@arm.linux.org.uk
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
S: Maintained
+F: arch/arm/mach-pxa/
+F: drivers/pcmcia/pxa2xx*
+F: drivers/spi/pxa2xx*
+F: drivers/usb/gadget/pxa2*
+F: include/sound/pxa2xx-lib.h
+F: sound/soc/pxa/pxa2xx*
PXA168 SUPPORT
P: Eric Miao
@@ -3620,14 +4480,14 @@
P: Jason Chagas
M: jason.chagas@marvell.com
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T: git kernel.org:/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
S: Supported
PXA910 SUPPORT
P: Eric Miao
M: eric.miao@marvell.com
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
-T: git kernel.org:/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
S: Supported
PXA MMCI DRIVER
@@ -3644,12 +4504,16 @@
M: linux-driver@qlogic.com
L: linux-scsi@vger.kernel.org
S: Supported
+F: Documentation/scsi/LICENSE.qla2xxx
+F: drivers/scsi/qla2xxx/
QLOGIC QLA3XXX NETWORK DRIVER
P: Ron Mercer
M: linux-driver@qlogic.com
L: netdev@vger.kernel.org
S: Supported
+F: Documentation/networking/LICENSE.qla3xxx
+F: drivers/net/qla3xxx.*
QLOGIC QLGE 10Gb ETHERNET DRIVER
P: Ron Mercer
@@ -3657,6 +4521,7 @@
M: ron.mercer@qlogic.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/qlge/
QNX4 FILESYSTEM
P: Anders Larsen
@@ -3664,18 +4529,24 @@
L: linux-kernel@vger.kernel.org
W: http://www.alarsen.net/linux/qnx4fs/
S: Maintained
+F: fs/qnx4/
+F: include/linux/qnx4_fs.h
+F: include/linux/qnxtypes.h
RADEON FRAMEBUFFER DISPLAY DRIVER
P: Benjamin Herrenschmidt
M: benh@kernel.crashing.org
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/aty/radeon*
+F: include/linux/radeonfb.h
RAGE128 FRAMEBUFFER DISPLAY DRIVER
P: Paul Mackerras
M: paulus@samba.org
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/aty/aty128fb.c
RALINK RT2X00 WIRELESS LAN DRIVER
P: rt2x00 project
@@ -3683,36 +4554,43 @@
L: users@rt2x00.serialmonkey.com
W: http://rt2x00.serialmonkey.com/
S: Maintained
-T: git kernel.org:/pub/scm/linux/kernel/git/ivd/rt2x00.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/ivd/rt2x00.git
F: drivers/net/wireless/rt2x00/
RAMDISK RAM BLOCK DEVICE DRIVER
P: Nick Piggin
M: npiggin@suse.de
S: Maintained
+F: Documentation/blockdev/ramdisk.txt
+F: drivers/block/brd.c
RANDOM NUMBER DRIVER
P: Matt Mackall
M: mpm@selenic.com
S: Maintained
+F: drivers/char/random.c
RAPIDIO SUBSYSTEM
P: Matt Porter
M: mporter@kernel.crashing.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/rapidio/
RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
P: Corey Thomas
M: coreythomas@charter.net
L: linux-wireless@vger.kernel.org
S: Maintained
+F: drivers/net/wireless/ray*
RCUTORTURE MODULE
P: Josh Triplett
M: josh@freedesktop.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/RCU/torture.txt
+F: kernel/rcutorture.c
RDC R-321X SoC
P: Florian Fainelli
@@ -3725,12 +4603,14 @@
M: florian.fainelli@telecomint.eu
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/r6040.c
RDS - RELIABLE DATAGRAM SOCKETS
P: Andy Grover
M: andy.grover@oracle.com
L: rds-devel@oss.oracle.com
S: Supported
+F: net/rds/
READ-COPY UPDATE (RCU)
P: Dipankar Sarma
@@ -3738,37 +4618,54 @@
W: http://www.rdrop.com/users/paulmck/rclock/
L: linux-kernel@vger.kernel.org
S: Supported
+F: Documentation/RCU/rcu.txt
+F: Documentation/RCU/rcuref.txt
+F: include/linux/rcupdate.h
+F: include/linux/srcu.h
+F: kernel/rcupdate.c
REAL TIME CLOCK DRIVER
P: Paul Gortmaker
M: p_gortmaker@yahoo.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/rtc.txt
+F: drivers/rtc/
+F: include/linux/rtc.h
REAL TIME CLOCK (RTC) SUBSYSTEM
P: Alessandro Zummo
M: a.zummo@towertech.it
L: rtc-linux@googlegroups.com
S: Maintained
+F: Documentation/rtc.txt
+F: drivers/rtc/
+F: include/linux/rtc.h
REISERFS FILE SYSTEM
L: reiserfs-devel@vger.kernel.org
S: Supported
+F: fs/reiserfs/
RFKILL
P: Ivo van Doorn
M: IvDoorn@gmail.com
L: netdev@vger.kernel.org
S: Maintained
-F: net/rfkill
+F Documentation/rfkill.txt
+F: net/rfkill/
RISCOM8 DRIVER
S: Orphan
+F: Documentation/serial/riscom8.txt
+F: drivers/char/riscom8*
ROCKETPORT DRIVER
P: Comtrol Corp.
W: http://www.comtrol.com
S: Maintained
+F: Documentation/serial/rocket.txt
+F: drivers/char/rocket*
ROSE NETWORK LAYER
P: Ralf Baechle
@@ -3776,32 +4673,38 @@
L: linux-hams@vger.kernel.org
W: http://www.linux-ax25.org/
S: Maintained
+F: include/linux/rose.h
+F: include/net/rose.h
+F: net/rose/
RTL8180 WIRELESS DRIVER
P: John W. Linville
M: linville@tuxdriver.com
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-testing.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
S: Maintained
+F: drivers/net/wireless/rtl818*
RTL8187 WIRELESS DRIVER
-P: Herton Ronaldo Krzesinski
-M: herton@mandriva.com.br
-P: Hin-Tak Leung
-M htl10@users.sourceforge.net
-P: Larry Finger
-M: Larry.Finger@lwfinger.net
-L: linux-wireless@vger.kernel.org
-W: http://linuxwireless.org/
-T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-testing.git
-S: Maintained
+P: Herton Ronaldo Krzesinski
+M: herton@mandriva.com.br
+P: Hin-Tak Leung
+M: htl10@users.sourceforge.net
+P: Larry Finger
+M: Larry.Finger@lwfinger.net
+L: linux-wireless@vger.kernel.org
+W: http://linuxwireless.org/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
+S: Maintained
+F: drivers/net/wireless/rtl818x/rtl8187*
S3 SAVAGE FRAMEBUFFER DRIVER
P: Antonino Daplas
M: adaplas@gmail.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/savage/
S390
P: Martin Schwidefsky
@@ -3812,6 +4715,7 @@
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+F: arch/s390/
S390 NETWORK DRIVERS
P: Ursula Braun
@@ -3822,6 +4726,7 @@
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+F: drivers/s390/net/
S390 ZCRYPT DRIVER
P: Felix Beck
@@ -3831,6 +4736,7 @@
M: linux390@de.ibm.com
L: linux-s390@vger.kernel.org
S: Supported
+F: drivers/s390/crypto/
S390 ZFCP DRIVER
P: Christof Schmitt
@@ -3841,6 +4747,8 @@
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+F: Documentation/s390/zfcpdump.txt
+F: drivers/s390/scsi/zfcp_*
S390 IUCV NETWORK LAYER
P: Ursula Braun
@@ -3849,6 +4757,9 @@
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
+F: drivers/s390/net/*iucv*
+F: include/net/iucv/
+F: net/iucv/
S3C24XX SD/MMC Driver
P: Ben Dooks
@@ -3856,19 +4767,24 @@
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
L: linux-kernel@vger.kernel.org
S: Supported
+F: drivers/mmc/host/s3cmci.*
SAA7146 VIDEO4LINUX-2 DRIVER
P: Michael Hunold
M: michael@mihu.de
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.mihu.de/linux/saa7146
S: Maintained
+F: drivers/media/common/saa7146*
+F: drivers/media/video/*7146*
+F: include/media/*7146*
SC1200 WDT DRIVER
P: Zwane Mwaikambo
M: zwane@arm.linux.org.uk
S: Maintained
+F: drivers/watchdog/sc1200wdt.c
SCHEDULER
P: Ingo Molnar
@@ -3877,6 +4793,8 @@
M: peterz@infradead.org
L: linux-kernel@vger.kernel.org
S: Maintained
+F: kernel/sched*
+F: include/linux/sched.h
SCSI CDROM DRIVER
P: Jens Axboe
@@ -3884,6 +4802,7 @@
L: linux-scsi@vger.kernel.org
W: http://www.kernel.dk
S: Maintained
+F: drivers/scsi/sr*
SCSI SG DRIVER
P: Doug Gilbert
@@ -3891,21 +4810,27 @@
L: linux-scsi@vger.kernel.org
W: http://www.torque.net/sg
S: Maintained
+F: drivers/scsi/sg.c
+F: include/scsi/sg.h
SCSI SUBSYSTEM
P: James E.J. Bottomley
M: James.Bottomley@HansenPartnership.com
L: linux-scsi@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
-T: git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git
-T: git kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-pending-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-pending-2.6.git
S: Maintained
+F: drivers/scsi/
+F: include/scsi/
SCSI TAPE DRIVER
P: Kai Mäkisara
M: Kai.Makisara@kolumbus.fi
L: linux-scsi@vger.kernel.org
S: Maintained
+F: Documentation/scsi/st.txt
+F: drivers/scsi/st*
SCTP PROTOCOL
P: Vlad Yasevich
@@ -3915,27 +4840,41 @@
L: linux-sctp@vger.kernel.org
W: http://lksctp.sourceforge.net
S: Supported
+F: Documentation/networking/sctp.txt
+F: include/linux/sctp.h
+F: include/net/sctp/
+F: net/sctp/
SCx200 CPU SUPPORT
P: Jim Cromie
M: jim.cromie@gmail.com
S: Odd Fixes
+F: Documentation/i2c/busses/scx200_acb
+F: arch/x86/kernel/scx200_32.c
+F: drivers/watchdog/scx200_wdt.c
+F: drivers/i2c/busses/scx200*
+F: drivers/mtd/maps/scx200_docflash.c
+F: include/linux/scx200.h
SCx200 GPIO DRIVER
P: Jim Cromie
M: jim.cromie@gmail.com
S: Maintained
+F: drivers/char/scx200_gpio.c
+F: include/linux/scx200_gpio.h
SCx200 HRT CLOCKSOURCE DRIVER
P: Jim Cromie
M: jim.cromie@gmail.com
S: Maintained
+F: drivers/clocksource/scx200_hrt.c
SDRICOH_CS MMC/SD HOST CONTROLLER INTERFACE DRIVER
P: Sascha Sommer
M: saschasommer@freenet.de
L: sdricohcs-devel@lists.sourceforge.net (subscribers-only)
S: Maintained
+F: drivers/mmc/host/sdricoh_cs.c
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
P: Pierre Ossman
@@ -3949,16 +4888,17 @@
L: linuxppc-dev@ozlabs.org
L: sdhci-devel@lists.ossman.eu
S: Maintained
+F: drivers/mmc/host/sdhci.*
SECURITY SUBSYSTEM
-F: security/
P: James Morris
M: jmorris@namei.org
L: linux-kernel@vger.kernel.org
L: linux-security-module@vger.kernel.org (suggested Cc:)
-T: git kernel.org:pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
+T: git git://www.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
W: http://security.wiki.kernel.org/
S: Supported
+F: security/
SECURITY CONTACT
P: Security Officers
@@ -3973,31 +4913,39 @@
P: Eric Paris
M: eparis@parisplace.org
L: linux-kernel@vger.kernel.org (kernel issues)
-L: selinux@tycho.nsa.gov (subscribers-only, general discussion)
+L: selinux@tycho.nsa.gov (subscribers-only, general discussion)
W: http://selinuxproject.org
-T: git kernel.org:pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
S: Supported
+F: include/linux/selinux*
+F: security/selinux/
SENSABLE PHANTOM
P: Jiri Slaby
M: jirislaby@gmail.com
S: Maintained
+F: drivers/misc/phantom.c
+F: include/linux/phantom.h
SERIAL ATA (SATA) SUBSYSTEM
P: Jeff Garzik
M: jgarzik@pobox.com
L: linux-ide@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
S: Supported
+F: drivers/ata/
+F: include/linux/ata.h
+F: include/linux/libata.h
SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
P: Sathya Perla
M: sathyap@serverengines.com
-P: Subbu Seetharaman
-M: subbus@serverengines.com
-L: netdev@vger.kernel.org
-W: http://www.serverengines.com
-S: Supported
+P: Subbu Seetharaman
+M: subbus@serverengines.com
+L: netdev@vger.kernel.org
+W: http://www.serverengines.com
+S: Supported
+F: drivers/net/benet/
SFC NETWORK DRIVER
P: Steve Hodgson
@@ -4005,17 +4953,22 @@
P: Robert Stonehouse
M: linux-net-drivers@solarflare.com
S: Supported
+F: drivers/net/sfc/
SGI GRU DRIVER
P: Jack Steiner
M: steiner@sgi.com
S: Maintained
+F: drivers/misc/sgi-gru/
SGI SN-IA64 (Altix) SERIAL CONSOLE DRIVER
P: Pat Gefre
M: pfg@sgi.com
L: linux-ia64@vger.kernel.org
S: Supported
+F: Documentation/ia64/serial.txt
+F: drivers/serial/ioc?_serial.c
+F: include/linux/ioc?.h
SGI VISUAL WORKSTATION 320 AND 540
P: Andrey Panin
@@ -4023,11 +4976,13 @@
L: linux-visws-devel@lists.sf.net
W: http://linux-visws.sf.net
S: Maintained for 2.6.
+F: Documentation/sgi-visws.txt
SGI XP/XPC/XPNET DRIVER
-P: Dean Nelson
-M: dcn@sgi.com
+P: Robin Holt
+M: holt@sgi.com
S: Maintained
+F: drivers/misc/sgi-xp/
SHARP LH SUPPORT (LH7952X & LH7A40X)
P: Marc Singer
@@ -4035,12 +4990,18 @@
W: http://projects.buici.com/arm
L: linux-arm-kernel@lists.arm.linux.org.uk (subscribers-only)
S: Maintained
+F: Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen
+F: arch/arm/mach-lh7a40x/
+F: drivers/serial/serial_lh7a40x.c
+F: drivers/usb/gadget/lh7a40*
+F: drivers/usb/host/ohci-lh7a40*
SHPC HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: linux-pci@vger.kernel.org
S: Supported
+F: drivers/pci/hotplug/shpchp*
SIMTEC EB110ATX (Chalice CATS)
P: Ben Dooks
@@ -4048,6 +5009,7 @@
M: support@simtec.co.uk
W: http://www.simtec.co.uk/products/EB110ATX/
S: Supported
+F: arch/arm/mach-ebsa110/
SIMTEC EB2410ITX (BAST)
P: Ben Dooks
@@ -4055,12 +5017,16 @@
M: support@simtec.co.uk
W: http://www.simtec.co.uk/products/EB2410ITX/
S: Supported
+F: arch/arm/mach-s3c2410/
+F: drivers/*/*s3c2410*
+F: drivers/*/*/*s3c2410*
SIS 190 ETHERNET DRIVER
P: Francois Romieu
M: romieu@fr.zoreil.com
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/sis190.c
SIS 900/7016 FAST ETHERNET DRIVER
P: Daniele Venzano
@@ -4068,30 +5034,39 @@
W: http://www.brownhat.org/sis900.html
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/sis900.*
SIS 96X I2C/SMBUS DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
L: linux-i2c@vger.kernel.org
S: Maintained
+F: Documentation/i2c/busses/i2c-sis96x
+F: drivers/i2c/busses/i2c-sis96x.c
SIS FRAMEBUFFER DRIVER
P: Thomas Winischhofer
M: thomas@winischhofer.net
W: http://www.winischhofer.net/linuxsisvga.shtml
S: Maintained
+F: Documentation/fb/sisfb.txt
+F: drivers/video/sis/
+F: include/video/sisfb.h
SIS USB2VGA DRIVER
P: Thomas Winischhofer
M: thomas@winischhofer.net
W: http://www.winischhofer.at/linuxsisusbvga.shtml
S: Maintained
+F: drivers/usb/misc/sisusbvga/
SKGE, SKY2 10/100/1000 GIGABIT ETHERNET DRIVERS
P: Stephen Hemminger
M: shemminger@linux-foundation.org
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/skge.*
+F: drivers/net/sky2.*
SLAB ALLOCATOR
P: Christoph Lameter
@@ -4102,34 +5077,43 @@
M: mpm@selenic.com
L: linux-mm@kvack.org
S: Maintained
+F: include/linux/sl?b*.h
+F: mm/sl?b.c
SMC91x ETHERNET DRIVER
P: Nicolas Pitre
M: nico@cam.org
S: Maintained
+F: drivers/net/smc91x.*
SMSC47B397 HARDWARE MONITOR DRIVER
P: Mark M. Hoffman
M: mhoffman@lightlink.com
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/smsc47b397
+F: drivers/hwmon/smsc47b397.c
SMSC911x ETHERNET DRIVER
P: Steve Glendinning
M: steve.glendinning@smsc.com
L: netdev@vger.kernel.org
S: Supported
+F: include/linux/smsc911x.h
+F: drivers/net/smsc911x.*
SMSC9420 PCI ETHERNET DRIVER
P: Steve Glendinning
M: steve.glendinning@smsc.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/smsc9420.*
SMX UIO Interface
P: Ben Nizette
M: bn@niasdigital.com
S: Maintained
+F: drivers/uio/uio_smx.c
SN-IA64 (Itanium) SUB-PLATFORM
P: Jes Sorensen
@@ -4138,36 +5122,45 @@
L: linux-ia64@vger.kernel.org
W: http://www.sgi.com/altix
S: Maintained
+F: arch/ia64/sn/
SOC-CAMERA V4L2 SUBSYSTEM
P: Guennadi Liakhovetski
M: g.liakhovetski@gmx.de
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
+F: include/media/v4l2*
+F: drivers/media/video/v4l2*
SOEKRIS NET48XX LED SUPPORT
P: Chris Boot
M: bootc@bootc.net
S: Maintained
+F: drivers/leds/leds-net48xx.c
SOFTWARE RAID (Multiple Disks) SUPPORT
P: Neil Brown
M: neilb@suse.de
L: linux-raid@vger.kernel.org
S: Supported
+F: drivers/md/
+F: include/linux/raid/
SONIC NETWORK DRIVER
P: Thomas Bogendoerfer
M: tsbogend@alpha.franken.de
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/sonic.*
SONICS SILICON BACKPLANE DRIVER (SSB)
P: Michael Buesch
M: mb@bu3sch.de
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/ssb/
+F: include/linux/ssb/
SONY VAIO CONTROL DEVICE DRIVER
P: Mattia Dongili
@@ -4175,6 +5168,10 @@
L: linux-acpi@vger.kernel.org
W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
S: Maintained
+F: Documentation/laptops/sony-laptop.txt
+F: drivers/char/sonypi.c
+F: drivers/platform/x86/sony-laptop.c
+F: include/linux/sony-laptop.h
SONY MEMORYSTICK CARD SUPPORT
P: Alex Dubov
@@ -4182,6 +5179,7 @@
L: linux-kernel@vger.kernel.org
W: http://tifmxx.berlios.de/
S: Maintained
+F: drivers/memstick/host/tifm_ms.c
SOUND
P: Jaroslav Kysela
@@ -4190,36 +5188,44 @@
M: tiwai@suse.de
L: alsa-devel@alsa-project.org (subscribers-only)
S: Maintained
+F: sound/
SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)
P: Liam Girdwood
M: lrg@slimlogic.co.uk
P: Mark Brown
M: broonie@opensource.wolfsonmicro.com
-T: git opensource.wolfsonmicro.com/linux-2.6-asoc
+T: git git://opensource.wolfsonmicro.com/linux-2.6-asoc
L: alsa-devel@alsa-project.org (subscribers-only)
W: http://alsa-project.org/main/index.php/ASoC
S: Supported
+F: sound/soc/
SPARC + UltraSPARC (sparc/sparc64)
P: David S. Miller
M: davem@davemloft.net
L: sparclinux@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6.git
-T: git kernel.org:/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6.git
S: Maintained
+F: arch/sparc/
SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
P: Roger Wolff
M: R.E.Wolff@BitWizard.nl
-L: linux-kernel@vger.kernel.org ?
+L: linux-kernel@vger.kernel.org
S: Supported
+F: Documentation/serial/specialix.txt
+F: drivers/char/specialix*
SPI SUBSYSTEM
P: David Brownell
M: dbrownell@users.sourceforge.net
L: spi-devel-general@lists.sourceforge.net
S: Maintained
+F: Documentation/spi/
+F: drivers/spi/
+F: include/linux/spi/
SPIDERNET NETWORK DRIVER for CELL
P: Ishizaki Kou
@@ -4228,6 +5234,8 @@
M: jens@de.ibm.com
L: netdev@vger.kernel.org
S: Supported
+F: Documentation/networking/spider_net.txt
+F: drivers/net/spider_net*
SPU FILE SYSTEM
P: Jeremy Kerr
@@ -4236,6 +5244,8 @@
L: cbe-oss-dev@ozlabs.org
W: http://www.ibm.com/developerworks/power/cell/
S: Supported
+F: Documentation/filesystems/spufs.txt
+F: arch/powerpc/platforms/cell/spufs/
SQUASHFS FILE SYSTEM
P: Phillip Lougher
@@ -4243,12 +5253,15 @@
L: squashfs-devel@lists.sourceforge.net (subscribers-only)
W: http://squashfs.org.uk
S: Maintained
+F: Documentation/filesystems/squashfs.txt
+F: fs/squashfs/
SRM (Alpha) environment access
P: Jan-Benedict Glaw
M: jbglaw@lug-owl.de
L: linux-kernel@vger.kernel.org
S: Maintained
+F: arch/alpha/kernel/srm_env.c
STABLE BRANCH
P: Greg Kroah-Hartman
@@ -4264,35 +5277,46 @@
L: linux-kernel@vger.kernel.org
T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
S: Maintained
+F: drivers/staging/
STARFIRE/DURALAN NETWORK DRIVER
P: Ion Badulescu
M: ionut@cs.columbia.edu
S: Maintained
+F: drivers/net/starfire*
STARMODE RADIO IP (STRIP) PROTOCOL DRIVER
W: http://mosquitonet.Stanford.EDU/strip.html
S: Orphan
+F: drivers/net/wireless/strip.c
+F: include/linux/if_strip.h
STRADIS MPEG-2 DECODER DRIVER
P: Nathan Laredo
M: laredo@gnu.org
W: http://www.stradis.com/
S: Maintained
+F: drivers/media/video/stradis.c
SUN3/3X
P: Sam Creasey
M: sammy@sammy.net
W: http://sammy.net/sun3/
S: Maintained
+F: arch/m68k/kernel/*sun3*
+F: arch/m68k/sun3*/
+F: arch/m68k/include/asm/sun3*
SUPERH
P: Paul Mundt
M: lethal@linux-sh.org
L: linux-sh@vger.kernel.org
W: http://www.linux-sh.org
-T: git kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.git
S: Supported
+F: Documentation/sh/
+F: arch/sh/
+F: drivers/sh/
SUSPEND TO RAM
P: Len Brown
@@ -4303,29 +5327,48 @@
M: rjw@sisk.pl
L: linux-pm@lists.linux-foundation.org
S: Supported
+F: Documentation/power/
+F: arch/x86/kernel/acpi/
+F: drivers/base/power/
+F: kernel/power/
+F: include/linux/suspend.h
+F: include/linux/freezer.h
+F: include/linux/pm.h
+F: include/asm-*/suspend.h
SVGA HANDLING
P: Martin Mares
M: mj@ucw.cz
L: linux-video@atrey.karlin.mff.cuni.cz
S: Maintained
+F: Documentation/svga.txt
+F: arch/x86/boot/video*
SYSV FILESYSTEM
P: Christoph Hellwig
M: hch@infradead.org
S: Maintained
+F: Documentation/filesystems/sysv-fs.txt
+F: fs/sysv/
+F: include/linux/sysv_fs.h
TASKSTATS STATISTICS INTERFACE
P: Balbir Singh
M: balbir@linux.vnet.ibm.com
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/accounting/taskstats*
+F: include/linux/taskstats*
+F: kernel/taskstats.c
TC CLASSIFIER
P: Jamal Hadi Salim
M: hadi@cyberus.ca
L: netdev@vger.kernel.org
S: Maintained
+F: include/linux/pkt_cls.h
+F: include/net/pkt_cls.h
+F: net/sched/
TCP LOW PRIORITY MODULE
P: Wong Hoi Sing, Edison
@@ -4334,6 +5377,7 @@
M: hlhung3i@gmail.com
W: http://tcp-lp-mod.sourceforge.net/
S: Maintained
+F: net/ipv4/tcp_lp.c
TEHUTI ETHERNET DRIVER
P: Alexander Indenbaum
@@ -4342,16 +5386,19 @@
M: andy@greyhouse.net
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/tehuti*
Telecom Clock Driver for MCPL0010
P: Mark Gross
M: mark.gross@intel.com
S: Supported
+F: drivers/char/tlclk.c
TENSILICA XTENSA PORT (xtensa)
P: Chris Zankel
M: chris@zankel.net
S: Maintained
+F: arch/xtensa/
THINKPAD ACPI EXTRAS DRIVER
P: Henrique de Moraes Holschuh
@@ -4359,13 +5406,17 @@
L: ibm-acpi-devel@lists.sourceforge.net
W: http://ibm-acpi.sourceforge.net
W: http://thinkwiki.org/wiki/Ibm-acpi
-T: git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
+T: git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
S: Maintained
+F: drivers/platform/x86/thinkpad_acpi.c
TI FLASH MEDIA INTERFACE DRIVER
P: Alex Dubov
M: oakad@yahoo.com
S: Maintained
+F: drivers/misc/tifm*
+F: drivers/mmc/host/tifm_sd.c
+F: include/linux/tifm.h
TI OMAP MMC INTERFACE DRIVER
P: Carlos Aguiar, Anderson Briglia and Syed Khasim
@@ -4373,11 +5424,13 @@
W: http://linux.omap.com
W: http://www.muru.com/linux/omap/
S: Maintained
+F: drivers/mmc/host/omap.c
TI OMAP RANDOM NUMBER GENERATOR SUPPORT
P: Deepak Saxena
M: dsaxena@plexity.net
S: Maintained
+F: drivers/char/hw_random/omap-rng.c
TIPC NETWORK LAYER
P: Per Liden
@@ -4389,8 +5442,11 @@
L: tipc-discussion@lists.sourceforge.net
W: http://tipc.sourceforge.net/
W: http://tipc.cslab.ericsson.net/
-T: git tipc.cslab.ericsson.net:/pub/git/tipc.git
+T: git git://tipc.cslab.ericsson.net/pub/git/tipc.git
S: Maintained
+F: include/linux/tipc*.h
+F: include/net/tipc/
+F: net/tipc/
TLAN NETWORK DRIVER
P: Samuel Chessman
@@ -4398,6 +5454,8 @@
L: tlan-devel@lists.sourceforge.net (subscribers-only)
W: http://sourceforge.net/projects/tlan/
S: Maintained
+F: Documentation/networking/tlan.txt
+F: drivers/net/tlan.*
TOMOYO SECURITY MODULE
P: Kentaro Takeda
@@ -4411,9 +5469,11 @@
W: http://tomoyo.sourceforge.jp/
T: quilt http://svn.sourceforge.jp/svnroot/tomoyo/trunk/2.2.x/tomoyo-lsm/patches/
S: Maintained
+F: security/tomoyo/
TOSHIBA ACPI EXTRAS DRIVER
S: Orphan
+F: drivers/platform/x86/toshiba_acpi.c
TOSHIBA SMM DRIVER
P: Jonathan Buzzard
@@ -4421,11 +5481,14 @@
L: tlinux-users@tce.toshiba-dme.co.jp
W: http://www.buzzard.org.uk/toshiba/
S: Maintained
+F: drivers/char/toshiba.c
+F: include/linux/toshiba.h
TMIO MMC DRIVER
P: Ian Molton
M: ian@mnementh.co.uk
S: Maintained
+F: drivers/mmc/host/tmio_mmc.*
TPM DEVICE DRIVER
P: Debora Velarde
@@ -4438,12 +5501,13 @@
W: http://www.sirrix.com
L: tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/char/tpm/
TRIVIAL PATCHES
P: Jiri Kosina
M: trivial@kernel.org
L: linux-kernel@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jikos/trivial.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git
S: Maintained
TTY LAYER
@@ -4459,6 +5523,7 @@
M: kyle@mcmartin.ca
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/tulip/
TUN/TAP driver
P: Maxim Krasnyansky
@@ -4466,17 +5531,22 @@
L: vtun@office.satix.net
W: http://vtun.sourceforge.net/tun
S: Maintained
+F: Documentation/networking/tuntap.txt
+F: arch/um/os-Linux/drivers/
TURBOCHANNEL SUBSYSTEM
P: Maciej W. Rozycki
M: macro@linux-mips.org
S: Maintained
+F: drivers/tc/
+F: include/linux/tc.h
U14-34F SCSI DRIVER
P: Dario Ballabio
M: ballabio_dario@emc.com
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/u14-34f.c
UBI FILE SYSTEM (UBIFS)
P: Artem Bityutskiy
@@ -4487,6 +5557,8 @@
T: git git://git.infradead.org/ubifs-2.6.git
W: http://www.linux-mtd.infradead.org/doc/ubifs.html
S: Maintained
+F: Documentation/filesystems/ubifs.txt
+F: fs/ubifs/
UCLINUX (AND M68KNOMMU)
P: Greg Ungerer
@@ -4494,6 +5566,7 @@
W: http://www.uclinux.org/
L: uclinux-dev@uclinux.org (subscribers-only)
S: Maintained
+F: arch/m68knommu/
UCLINUX FOR RENESAS H8/300
P: Yoshinori Sato
@@ -4506,18 +5579,25 @@
M: jack@suse.cz
W: http://linux-udf.sourceforge.net
S: Maintained
+F: Documentation/filesystems/udf.txt
+F: fs/udf/
UFS FILESYSTEM
P: Evgeniy Dushistov
M: dushistov@mail.ru
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/ufs.txt
+F: fs/ufs/
ULTRA-WIDEBAND (UWB) SUBSYSTEM:
P: David Vrabel
M: david.vrabel@csr.com
L: linux-usb@vger.kernel.org
S: Supported
+F: drivers/uwb/*
+F: include/linux/uwb.h
+F: include/linux/uwb/
UNIFORM CDROM DRIVER
P: Jens Axboe
@@ -4525,6 +5605,9 @@
L: linux-kernel@vger.kernel.org
W: http://www.kernel.dk
S: Maintained
+F: Documentation/cdrom/
+F: drivers/cdrom/cdrom.c
+F: include/linux/cdrom.h
UNSORTED BLOCK IMAGES (UBI)
P: Artem Bityutskiy
@@ -4533,12 +5616,17 @@
L: linux-mtd@lists.infradead.org
T: git git://git.infradead.org/ubi-2.6.git
S: Maintained
+F: drivers/mtd/ubi/
+F: include/linux/mtd/ubi.h
+F: include/mtd/ubi-user.h
USB ACM DRIVER
P: Oliver Neukum
M: oliver@neukum.name
L: linux-usb@vger.kernel.org
S: Maintained
+F: Documentation/usb/acm.txt
+F: drivers/usb/class/cdc-acm.*
USB BLOCK DRIVER (UB ub)
P: Pete Zaitcev
@@ -4546,6 +5634,7 @@
L: linux-kernel@vger.kernel.org
L: linux-usb@vger.kernel.org
S: Supported
+F: drivers/block/ub.c
USB CDC ETHERNET DRIVER
P: Greg Kroah-Hartman
@@ -4553,12 +5642,15 @@
L: linux-usb@vger.kernel.org
S: Maintained
W: http://www.kroah.com/linux-usb/
+F: drivers/net/usb/cdc_*.c
+F: include/linux/usb/cdc.h
USB CYPRESS C67X00 DRIVER
P: Peter Korsgaard
M: jacmet@sunsite.dk
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/c67x00/
USB DAVICOM DM9601 DRIVER
P: Peter Korsgaard
@@ -4566,6 +5658,7 @@
L: netdev@vger.kernel.org
W: http://www.linux-usb.org/usbnet
S: Maintained
+F: drivers/net/usb/dm9601.c
USB DIAMOND RIO500 DRIVER
P: Cesar Miquel
@@ -4573,21 +5666,25 @@
L: rio500-users@lists.sourceforge.net
W: http://rio500.sourceforge.net
S: Maintained
+F: drivers/usb/misc/rio500*
USB EHCI DRIVER
P: David Brownell
M: dbrownell@users.sourceforge.net
L: linux-usb@vger.kernel.org
S: Odd Fixes
+F: Documentation/usb/ehci.txt
+F: drivers/usb/host/ehci*
USB ET61X[12]51 DRIVER
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
+F: drivers/media/video/et61x251/
USB GADGET/PERIPHERAL SUBSYSTEM
P: David Brownell
@@ -4595,25 +5692,32 @@
L: linux-usb@vger.kernel.org
W: http://www.linux-usb.org/gadget
S: Maintained
+F: drivers/usb/gadget/
+F: include/linux/usb/gadget*
USB HID/HIDBP DRIVERS (USB KEYBOARDS, MICE, REMOTE CONTROLS, ...)
P: Jiri Kosina
M: jkosina@suse.cz
L: linux-usb@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/jikos/hid.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git
S: Maintained
+F: Documentation/usb/hiddev.txt
+F: drivers/hid/usbhid/
USB ISP116X DRIVER
P: Olav Kongas
M: ok@artecdesign.ee
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/host/isp116x*
+F: include/linux/usb/isp116x.h
USB KAWASAKI LSI DRIVER
P: Oliver Neukum
M: oliver@neukum.name
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/serial/kl5kusb105.*
USB MASS STORAGE DRIVER
P: Matthew Dharm
@@ -4622,18 +5726,22 @@
L: usb-storage@lists.one-eyed-alien.net
S: Maintained
W: http://www.one-eyed-alien.net/~mdharm/linux-usb/
+F: drivers/usb/storage/
USB OHCI DRIVER
P: David Brownell
M: dbrownell@users.sourceforge.net
L: linux-usb@vger.kernel.org
S: Odd Fixes
+F: Documentation/usb/ohci.txt
+F: drivers/usb/host/ohci*
USB OPTION-CARD DRIVER
P: Matthias Urlichs
M: smurf@smurf.noris.de
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/serial/option.c
USB OV511 DRIVER
P: Mark McClelland
@@ -4641,6 +5749,7 @@
L: linux-usb@vger.kernel.org
W: http://alpha.dyndns.org/ov511/
S: Maintained
+F: drivers/media/video/ov511.*
USB PEGASUS DRIVER
P: Petko Manolov
@@ -4649,12 +5758,14 @@
L: netdev@vger.kernel.org
W: http://pegasus2.sourceforge.net/
S: Maintained
+F: drivers/net/usb/pegasus.*
USB PRINTER DRIVER (usblp)
P: Pete Zaitcev
M: zaitcev@redhat.com
L: linux-usb@vger.kernel.org
S: Supported
+F: drivers/usb/class/usblp.c
USB RTL8150 DRIVER
P: Petko Manolov
@@ -4663,6 +5774,7 @@
L: netdev@vger.kernel.org
W: http://pegasus2.sourceforge.net/
S: Maintained
+F: drivers/net/usb/rtl8150.c
USB SE401 DRIVER
P: Jeroen Vreeken
@@ -4670,12 +5782,15 @@
L: linux-usb@vger.kernel.org
W: http://www.chello.nl/~j.vreeken/se401/
S: Maintained
+F: Documentation/video4linux/se401.txt
+F: drivers/media/video/se401.*
USB SERIAL BELKIN F5U103 DRIVER
P: William Greathouse
M: wgreathouse@smva.com
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/serial/belkin_sa.*
USB SERIAL CYPRESS M8 DRIVER
P: Lonnie Mendez
@@ -4684,12 +5799,14 @@
S: Maintained
W: http://geocities.com/i0xox0i
W: http://firstlight.net/cvs
+F: drivers/usb/serial/cypress_m8.*
USB SERIAL CYBERJACK DRIVER
P: Matthias Bruestle and Harald Welte
M: support@reiner-sct.com
W: http://www.reiner-sct.de/support/treiber_cyberjack.php
S: Maintained
+F: drivers/usb/serial/cyberjack.c
USB SERIAL DIGI ACCELEPORT DRIVER
P: Peter Berger and Al Borchers
@@ -4697,18 +5814,24 @@
M: alborchers@steinerpoint.com
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/serial/digi_acceleport.c
USB SERIAL DRIVER
P: Greg Kroah-Hartman
M: gregkh@suse.de
L: linux-usb@vger.kernel.org
S: Supported
+F: Documentation/usb/usb-serial.txt
+F: drivers/usb/serial/generic.c
+F: drivers/usb/serial/usb-serial.c
+F: include/linux/usb/serial.h
USB SERIAL EMPEG EMPEG-CAR MARK I/II DRIVER
P: Gary Brubaker
M: xavyer@ix.netcom.com
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/serial/empeg.c
USB SERIAL KEYSPAN DRIVER
P: Greg Kroah-Hartman
@@ -4716,6 +5839,7 @@
L: linux-usb@vger.kernel.org
W: http://www.kroah.com/linux/
S: Maintained
+F: drivers/usb/serial/*keyspan*
USB SERIAL WHITEHEAT DRIVER
P: Support Department
@@ -4723,21 +5847,25 @@
L: linux-usb@vger.kernel.org
W: http://www.connecttech.com
S: Supported
+F: drivers/usb/serial/whiteheat*
USB SMSC95XX ETHERNET DRIVER
P: Steve Glendinning
M: steve.glendinning@smsc.com
L: netdev@vger.kernel.org
S: Supported
+F: drivers/net/usb/smsc95xx.*
USB SN9C1xx DRIVER
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
+F: Documentation/video4linux/sn9c102.txt
+F: drivers/media/video/sn9c102/
USB SUBSYSTEM
P: Greg Kroah-Hartman
@@ -4746,12 +5874,18 @@
W: http://www.linux-usb.org
T: quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
S: Supported
+F: Documentation/usb/
+F: drivers/net/usb/
+F: drivers/usb/
+F: include/linux/usb.h
+F: include/linux/usb/
USB UHCI DRIVER
P: Alan Stern
M: stern@rowland.harvard.edu
L: linux-usb@vger.kernel.org
S: Maintained
+F: drivers/usb/host/uhci*
USB "USBNET" DRIVER FRAMEWORK
P: David Brownell
@@ -4759,39 +5893,47 @@
L: netdev@vger.kernel.org
W: http://www.linux-usb.org/usbnet
S: Maintained
+F: drivers/net/usb/usbnet.c
+F: include/linux/usb/usbnet.h
USB VIDEO CLASS
P: Laurent Pinchart
M: laurent.pinchart@skynet.be
L: linux-uvc-devel@lists.berlios.de (subscribers-only)
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://linux-uvc.berlios.de
S: Maintained
+F: drivers/media/video/uvc/
USB W996[87]CF DRIVER
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
+F: Documentation/video4linux/w9968cf.txt
+F: drivers/media/video/w996*
USB WIRELESS RNDIS DRIVER (rndis_wlan)
P: Jussi Kivilinna
M: jussi.kivilinna@mbnet.fi
L: linux-wireless@vger.kernel.org
S: Maintained
+F: drivers/net/wireless/rndis_wlan.c
USB ZC0301 DRIVER
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
+F: Documentation/video4linux/zc0301.txt
+F: drivers/media/video/zc0301/
USB ZD1201 DRIVER
P: Jeroen Vreeken
@@ -4799,15 +5941,18 @@
L: linux-usb@vger.kernel.org
W: http://linux-lc100020.sourceforge.net
S: Maintained
+F: drivers/net/wireless/zd1201.*
USB ZR364XX DRIVER
P: Antoine Jacquet
M: royale@zerezo.com
L: linux-usb@vger.kernel.org
L: linux-media@vger.kernel.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://royale.zerezo.com/zr364xx/
S: Maintained
+F: Documentation/video4linux/zr364xx.txt
+F: drivers/media/video/zr364xx.c
USER-MODE LINUX (UML)
P: Jeff Dike
@@ -4816,6 +5961,10 @@
L: user-mode-linux-user@lists.sourceforge.net
W: http://user-mode-linux.sourceforge.net
S: Maintained
+F: Documentation/uml/
+F: arch/um/
+F: fs/hostfs/
+F: fs/hppfs/
USERSPACE I/O (UIO)
P: Hans J. Koch
@@ -4824,13 +5973,16 @@
M: gregkh@suse.de
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/DocBook/uio-howto.tmpl
+F: drivers/uio/
+F: include/linux/uio*.h
UTIL-LINUX-NG PACKAGE
P: Karel Zak
M: kzak@redhat.com
L: util-linux-ng@vger.kernel.org
W: http://kernel.org/~kzak/util-linux-ng/
-T: git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git
+T: git git://git.kernel.org/pub/scm/utils/util-linux-ng/util-linux-ng.git
S: Maintained
UVESAFB DRIVER
@@ -4839,23 +5991,30 @@
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://dev.gentoo.org/~spock/projects/uvesafb/
S: Maintained
+F: Documentation/fb/uvesafb.txt
+F: drivers/video/uvesafb.*
VFAT/FAT/MSDOS FILESYSTEM
P: OGAWA Hirofumi
M: hirofumi@mail.parknet.co.jp
L: linux-kernel@vger.kernel.org
S: Maintained
+F: Documentation/filesystems/vfat.txt
+F: fs/fat/
VIA RHINE NETWORK DRIVER
P: Roger Luethi
M: rl@hellgate.ch
S: Maintained
+F: drivers/net/via-rhine.c
VIAPRO SMBUS DRIVER
P: Jean Delvare
M: khali@linux-fr.org
L: linux-i2c@vger.kernel.org
S: Maintained
+F: Documentation/i2c/busses/i2c-viapro
+F: drivers/i2c/busses/i2c-viapro.c
VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
P: Joseph Chan
@@ -4864,26 +6023,23 @@
M: ScottFang@viatech.com.cn
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
+F: drivers/video/via/
VIA VELOCITY NETWORK DRIVER
P: Francois Romieu
M: romieu@fr.zoreil.com
L: netdev@vger.kernel.org
S: Maintained
-
-VIDEO FOR LINUX (V4L)
-P: Mauro Carvalho Chehab
-M: mchehab@infradead.org
-L: linux-media@vger.kernel.org
-W: http://linuxtv.org
-T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
-S: Maintained
+F: drivers/net/via-velocity.*
VLAN (802.1Q)
P: Patrick McHardy
M: kaber@trash.net
L: netdev@vger.kernel.org
S: Maintained
+F: drivers/net/macvlan.c
+F: include/linux/if_*vlan.h
+F: net/8021q/
VOLTAGE AND CURRENT REGULATOR FRAMEWORK
P: Liam Girdwood
@@ -4892,49 +6048,64 @@
M: broonie@opensource.wolfsonmicro.com
W: http://opensource.wolfsonmicro.com/node/15
W: http://www.slimlogic.co.uk/?p=48
-T: git kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6.git
S: Supported
+F: drivers/regulator/
+F: include/linux/regulator/
VT1211 HARDWARE MONITOR DRIVER
P: Juerg Haefliger
M: juergh@gmail.com
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/vt1211
+F: drivers/hwmon/vt1211.c
VT8231 HARDWARE MONITOR DRIVER
P: Roger Lucas
M: vt8231@hiddenengine.co.uk
L: lm-sensors@lm-sensors.org
S: Maintained
+F: drivers/hwmon/vt8231.c
W1 DALLAS'S 1-WIRE BUS
P: Evgeniy Polyakov
M: johnpol@2ka.mipt.ru
S: Maintained
+F: Documentation/w1/
+F: drivers/w1/
W83791D HARDWARE MONITORING DRIVER
P: Marc Hulsman
M: m.hulsman@tudelft.nl
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/w83791d
+F: drivers/hwmon/w83791d.c
W83793 HARDWARE MONITORING DRIVER
P: Rudolf Marek
M: r.marek@assembler.cz
L: lm-sensors@lm-sensors.org
S: Maintained
+F: Documentation/hwmon/w83793
+F: drivers/hwmon/w83793.c
W83L51xD SD/MMC CARD INTERFACE DRIVER
P: Pierre Ossman
M: pierre@ossman.eu
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/mmc/host/wbsd.*
WATCHDOG DEVICE DRIVERS
P: Wim Van Sebroeck
M: wim@iguana.be
-T: git kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
S: Maintained
+F: Documentation/watchdog/
+F: drivers/watchdog/
+F: include/linux/watchdog.h
WAVELAN NETWORK DRIVER & WIRELESS EXTENSIONS
P: Jean Tourrilhes
@@ -4942,12 +6113,15 @@
L: linux-wireless@vger.kernel.org
W: http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
S: Maintained
+F: Documentation/networking/wavelan.txt
+F: drivers/net/wireless/wavelan*
WD7000 SCSI DRIVER
P: Miroslav Zagorac
M: zaga@fly.cc.fer.hr
L: linux-scsi@vger.kernel.org
S: Maintained
+F: drivers/scsi/wd7000.c
WIMAX STACK
P: Inaky Perez-Gonzalez
@@ -4961,11 +6135,14 @@
P: David Vrabel
M: david.vrabel@csr.com
S: Maintained
+F: include/linux/wlp.h
+F: drivers/uwb/wlp/
WISTRON LAPTOP BUTTON DRIVER
P: Miloslav Trmac
M: mitr@volny.cz
S: Maintained
+F: drivers/input/misc/wistron_btns.c
WL3501 WIRELESS PCMCIA CARD DRIVER
P: Arnaldo Carvalho de Melo
@@ -4973,6 +6150,7 @@
L: linux-wireless@vger.kernel.org
W: http://oops.ghostprotocols.net:81/blog
S: Maintained
+F: drivers/net/wireless/wl3501*
WM97XX TOUCHSCREEN DRIVERS
P: Mark Brown
@@ -4983,12 +6161,17 @@
T: git git://opensource.wolfsonmicro.com/linux-2.6-touch
W: http://opensource.wolfsonmicro.com/node/7
S: Supported
+F: drivers/input/touchscreen/*wm97*
+F: include/linux/wm97xx.h
X.25 NETWORK LAYER
P: Henner Eisen
M: eis@baty.hanse.de
L: linux-x25@vger.kernel.org
S: Maintained
+F: Documentation/networking/x25*
+F: include/net/x25*
+F: net/x25/
X86 ARCHITECTURE (32-BIT AND 64-BIT)
P: Thomas Gleixner
@@ -4999,8 +6182,10 @@
M: hpa@zytor.com
M: x86@kernel.org
L: linux-kernel@vger.kernel.org
-T: git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
S: Maintained
+F: Documentation/x86/
+F: arch/x86/
XEN HYPERVISOR INTERFACE
P: Jeremy Fitzhardinge
@@ -5010,6 +6195,11 @@
L: virtualization@lists.osdl.org
L: xen-devel@lists.xensource.com
S: Supported
+F: arch/x86/xen/
+F: drivers/*/xen-*front.c
+F: drivers/xen/
+F: arch/x86/include/asm/xen/
+F: include/xen/
XFS FILESYSTEM
P: Silicon Graphics Inc
@@ -5018,8 +6208,10 @@
M: xfs-masters@oss.sgi.com
L: xfs@oss.sgi.com
W: http://oss.sgi.com/projects/xfs
-T: git://oss.sgi.com/xfs/xfs.git
+T: git git://oss.sgi.com/xfs/xfs.git
S: Supported
+F: Documentation/filesystems/xfs.txt
+F: fs/xfs/
XILINX SYSTEMACE DRIVER
P: Grant Likely
@@ -5027,24 +6219,30 @@
W: http://www.secretlab.ca/
L: linux-kernel@vger.kernel.org
S: Maintained
+F: drivers/block/xsysace.c
XILINX UARTLITE SERIAL DRIVER
P: Peter Korsgaard
M: jacmet@sunsite.dk
L: linux-serial@vger.kernel.org
S: Maintained
+F: drivers/serial/uartlite.c
YAM DRIVER FOR AX.25
P: Jean-Paul Roubelat
M: jpr@f6fbb.org
L: linux-hams@vger.kernel.org
S: Maintained
+F: drivers/net/hamradio/yam*
+F: include/linux/yam.h
YEALINK PHONE DRIVER
P: Henk Vergonet
M: Henk.Vergonet@gmail.com
L: usbb2k-api-dev@nongnu.org
S: Maintained
+F: Documentation/input/yealink.txt
+F: drivers/input/misc/yealink.*
Z8530 DRIVER FOR AX.25
P: Joerg Reuter
@@ -5053,6 +6251,9 @@
W: http://www.qsl.net/dl1bke/
L: linux-hams@vger.kernel.org
S: Maintained
+F: Documentation/networking/z8530drv.txt
+F: drivers/net/hamradio/*scc.c
+F: drivers/net/hamradio/z8530.h
ZD1211RW WIRELESS DRIVER
P: Daniel Drake
@@ -5063,6 +6264,7 @@
L: linux-wireless@vger.kernel.org
L: zd1211-devs@lists.sourceforge.net (subscribers-only)
S: Maintained
+F: drivers/net/wireless/zd1211rw/
ZR36067 VIDEO FOR LINUX DRIVER
L: mjpeg-users@lists.sourceforge.net
@@ -5070,12 +6272,15 @@
W: http://mjpeg.sourceforge.net/driver-zoran/
T: Mercurial http://linuxtv.org/hg/v4l-dvb
S: Odd Fixes
+F: drivers/media/video/zoran/
ZS DECSTATION Z85C30 SERIAL DRIVER
P: Maciej W. Rozycki
M: macro@linux-mips.org
S: Maintained
+F: drivers/serial/zs.*
THE REST
P: Linus Torvalds
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
S: Buried alive in reporters
diff --git a/Makefile b/Makefile
index e5ad5fd..4f7e3cc 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,7 @@
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
- -e s/sh.*/sh/ )
+ -e s/sh[234].*/sh/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
@@ -210,6 +210,11 @@
SRCARCH := sparc
endif
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+ SRCARCH := sh
+endif
+
# Where to locate arch specific headers
hdr-arch := $(SRCARCH)
@@ -567,7 +572,7 @@
# disable pointer signed / unsigned warnings in gcc 4.0
KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
-# disable invalid "can't wrap" optimzations for signed / pointers
+# disable invalid "can't wrap" optimizations for signed / pointers
KBUILD_CFLAGS += $(call cc-option,-fwrapv)
# revert to pre-gcc-4.4 behaviour of .eh_frame
@@ -597,6 +602,10 @@
LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
+ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
+LDFLAGS_vmlinux += -X
+endif
+
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
# set in the environment
@@ -1587,5 +1596,5 @@
FORCE:
# Declare the contents of the .PHONY variable as phony. We keep that
-# information in a variable se we can use it in if_changed and friends.
+# information in a variable so we can use it in if_changed and friends.
.PHONY: $(PHONY)
diff --git a/arch/Kconfig b/arch/Kconfig
index dc81b34..78a35e9 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -109,3 +109,6 @@
config HAVE_DMA_API_DEBUG
bool
+
+config HAVE_DEFAULT_NO_SPIN_MUTEXES
+ bool
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index fc74e91..34a56a1 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -131,14 +131,14 @@
.power = 50, /* up to 100 mA */
};
-static u64 musb_dmamask = DMA_32BIT_MASK;
+static u64 musb_dmamask = DMA_BIT_MASK(32);
static struct platform_device musb_device = {
.name = "musb_hdrc",
.id = -1,
.dev = {
.dma_mask = &musb_dmamask,
- .coherent_dma_mask = DMA_32BIT_MASK,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &musb_plat,
},
.num_resources = ARRAY_SIZE(musb_resources),
@@ -146,14 +146,14 @@
};
#ifdef CONFIG_NOP_USB_XCEIV
-static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
static struct platform_device nop_xceiv_device = {
.name = "nop_usb_xceiv",
.id = -1,
.dev = {
.dma_mask = &nop_xceiv_dmamask,
- .coherent_dma_mask = DMA_32BIT_MASK,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = NULL,
},
};
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 573f02c..285aae8 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -16,7 +16,7 @@
static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
{
- if (dev->coherent_dma_mask != DMA_64BIT_MASK)
+ if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
gfp |= GFP_DMA;
return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
}
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
new file mode 100644
index 0000000..8cc312b
--- /dev/null
+++ b/arch/microblaze/Kconfig
@@ -0,0 +1,141 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+
+mainmenu "Linux/Microblaze Kernel Configuration"
+
+config MICROBLAZE
+ def_bool y
+ select HAVE_LMB
+
+config SWAP
+ def_bool n
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+ bool
+
+config ARCH_HAS_ILOG2_U32
+ def_bool n
+
+config ARCH_HAS_ILOG2_U64
+ def_bool n
+
+config GENERIC_FIND_NEXT_BIT
+ def_bool y
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+config GENERIC_HARDIRQS
+ def_bool y
+
+config GENERIC_IRQ_PROBE
+ def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config GENERIC_TIME
+ def_bool y
+
+config GENERIC_TIME_VSYSCALL
+ def_bool n
+
+config GENERIC_CLOCKEVENTS
+ def_bool y
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ def_bool y
+
+config PCI
+ depends on !MMU
+ def_bool n
+
+config NO_DMA
+ depends on !MMU
+ def_bool n
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+source "arch/microblaze/platform/Kconfig.platform"
+
+menu "Processor type and features"
+
+source kernel/time/Kconfig
+
+source "kernel/Kconfig.preempt"
+
+source "kernel/Kconfig.hz"
+
+config MMU
+ def_bool n
+
+config NO_MMU
+ bool
+ depends on !MMU
+ default y
+
+comment "Boot options"
+
+config CMDLINE_BOOL
+ bool "Default bootloader kernel arguments"
+
+config CMDLINE
+ string "Default kernel command string"
+ depends on CMDLINE_BOOL
+ default "console=ttyUL0,115200"
+ help
+ On some architectures there is currently no way for the boot loader
+ to pass arguments to the kernel. For these architectures, you should
+ supply some command-line options at build time by entering them
+ here.
+
+config CMDLINE_FORCE
+ bool "Force default kernel command string"
+ depends on CMDLINE_BOOL
+ default n
+ help
+ Set this to have arguments from the default kernel command string
+ override those passed by the boot loader.
+
+config OF
+ def_bool y
+
+config OF_DEVICE
+ def_bool y
+
+config PROC_DEVICETREE
+ bool "Support for device tree in /proc"
+ depends on PROC_FS
+ help
+ This option adds a device-tree directory under /proc which contains
+ an image of the device tree that the kernel copies from Open
+ Firmware or other boot firmware. If unsure, say Y here.
+
+endmenu
+
+source "mm/Kconfig"
+
+menu "Exectuable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/microblaze/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
new file mode 100644
index 0000000..242cd35
--- /dev/null
+++ b/arch/microblaze/Kconfig.debug
@@ -0,0 +1,26 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config EARLY_PRINTK
+ bool "Early printk function for kernel"
+ default n
+ help
+ This option turns on/off early printk messages to console.
+ First Uartlite node is taken.
+
+config HEART_BEAT
+ bool "Heart beat function for kernel"
+ default n
+ help
+ This option turns on/off heart beat kernel functionality.
+ First GPIO node is taken.
+
+config DEBUG_BOOTMEM
+ depends on DEBUG_KERNEL
+ bool "Debug BOOTMEM initialization"
+
+endmenu
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
new file mode 100644
index 0000000..0dcbb98
--- /dev/null
+++ b/arch/microblaze/Makefile
@@ -0,0 +1,69 @@
+UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
+
+# What CPU vesion are we building for, and crack it open
+# as major.minor.rev
+CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
+CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
+CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
+CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
+
+export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
+
+# Use cpu-related CONFIG_ vars to set compile options.
+
+# Work out HW multipler support. This is icky.
+# 1. Spartan2 has no HW multiplers.
+# 2. MicroBlaze v3.x always uses them, except in Spartan 2
+# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
+ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
+ ifeq ($(CPU_MAJOR),3)
+ CPUFLAGS-1 += -mno-xl-soft-mul
+ else
+ # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
+ CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
+ CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
+ endif
+endif
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
+
+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
+
+# The various CONFIG_XILINX cpu features options are integers 0/1/2...
+# rather than bools y/n
+CFLAGS += $(CPUFLAGS-1)
+CFLAGS += $(CPUFLAGS-2)
+
+# r31 holds current when in kernel mode
+CFLAGS += -ffixed-r31
+
+LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
+
+LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+
+head-y := arch/microblaze/kernel/head.o
+libs-y += arch/microblaze/lib/ $(LIBGCC)
+core-y += arch/microblaze/kernel/ arch/microblaze/mm/ \
+ arch/microblaze/platform/
+
+boot := arch/$(ARCH)/boot
+
+# defines filename extension depending memory management type
+ifeq ($(CONFIG_MMU),)
+MMUEXT := -nommu
+endif
+export MMUEXT
+
+all: linux.bin
+
+archclean:
+ $(Q)$(MAKE) $(clean)=$(boot)
+
+linux.bin linux.bin.gz: vmlinux
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+define archhelp
+ echo '* linux.bin - Create raw binary'
+ echo ' linux.bin.gz - Create compressed raw binary'
+endef
diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
new file mode 100644
index 0000000..844edf4
--- /dev/null
+++ b/arch/microblaze/boot/Makefile
@@ -0,0 +1,17 @@
+#
+# arch/microblaze/boot/Makefile
+#
+
+targets := linux.bin linux.bin.gz
+
+OBJCOPYFLAGS_linux.bin := -O binary
+
+$(obj)/linux.bin: vmlinux FORCE
+ $(call if_changed,objcopy)
+ @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+$(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
+ $(call if_changed,gzip)
+ @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+
+clean-kernel += linux.bin linux.bin.gz
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
new file mode 100644
index 0000000..beb7ecd
--- /dev/null
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -0,0 +1,804 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.29
+# Tue Mar 24 10:23:20 2009
+#
+CONFIG_MICROBLAZE=y
+# CONFIG_SWAP is not set
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_GENERIC_TIME_VSYSCALL is not set
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+# CONFIG_PCI is not set
+# CONFIG_NO_DMA is not set
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=17
+# CONFIG_GROUP_SCHED is not set
+# CONFIG_CGROUPS is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_ANON_INODES=y
+CONFIG_EMBEDDED=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+# CONFIG_HOTPLUG is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
+CONFIG_EVENTFD=y
+CONFIG_AIO=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_COMPAT_BRK=y
+CONFIG_SLAB=y
+# CONFIG_SLUB is not set
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+CONFIG_BASE_SMALL=1
+CONFIG_MODULES=y
+# CONFIG_MODULE_FORCE_LOAD is not set
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_BLK_DEV_INTEGRITY is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+# CONFIG_FREEZER is not set
+
+#
+# Platform options
+#
+CONFIG_PLATFORM_GENERIC=y
+# CONFIG_SELFMOD is not set
+# CONFIG_OPT_LIB_FUNCTION is not set
+# CONFIG_ALLOW_EDIT_AUTO is not set
+CONFIG_KERNEL_BASE_ADDR=0x90000000
+CONFIG_XILINX_MICROBLAZE0_FAMILY="virtex5"
+CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
+CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
+CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2
+CONFIG_XILINX_MICROBLAZE0_USE_FPU=2
+CONFIG_XILINX_MICROBLAZE0_HW_VER="7.10.d"
+
+#
+# Processor type and features
+#
+CONFIG_TICK_ONESHOT=y
+# CONFIG_NO_HZ is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+CONFIG_HZ_100=y
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=100
+CONFIG_SCHED_HRTICK=y
+# CONFIG_MMU is not set
+CONFIG_NO_MMU=y
+
+#
+# Boot options
+#
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyUL0,115200"
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_OF=y
+CONFIG_OF_DEVICE=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_PHYS_ADDR_T_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+CONFIG_VIRT_TO_BUS=y
+
+#
+# Exectuable file formats
+#
+CONFIG_BINFMT_FLAT=y
+# CONFIG_BINFMT_ZFLAT is not set
+# CONFIG_BINFMT_SHARED_FLAT is not set
+# CONFIG_HAVE_AOUT is not set
+# CONFIG_BINFMT_MISC is not set
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_COMPAT_NET_DEV_OPS=y
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+# CONFIG_XFRM_USER is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_XFRM_STATISTICS is not set
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_NET_DSA is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_DCB is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+# CONFIG_PHONET is not set
+CONFIG_WIRELESS=y
+# CONFIG_CFG80211 is not set
+CONFIG_WIRELESS_OLD_REGULATORY=y
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_LIB80211 is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_WIMAX is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+CONFIG_MTD_CONCAT=y
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_TESTS is not set
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_RAM=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PHYSMAP is not set
+CONFIG_MTD_UCLINUX=y
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# LPDDR flash memory drivers
+#
+# CONFIG_MTD_LPDDR is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+CONFIG_BLK_DEV_NBD=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_93CX6 is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_DNET is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
+# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
+# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_B44 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEV_10000=y
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
+
+#
+# Enable WiMAX (Networking options) to see the WiMAX drivers
+#
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+CONFIG_DEVKMEM=y
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_UARTLITE=y
+CONFIG_SERIAL_UARTLITE_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
+# CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+
+#
+# Sonics Silicon Backplane
+#
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_CORE is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_MFD_TMIO is not set
+# CONFIG_REGULATOR is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
+CONFIG_DAB=y
+
+#
+# Graphics support
+#
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_SOUND is not set
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB_OTG_WHITELIST is not set
+# CONFIG_USB_OTG_BLACKLIST_HUB is not set
+
+#
+# Enable Host or Gadget support to see Inventra options
+#
+
+#
+# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# OTG and related infrastructure
+#
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
+# CONFIG_UIO is not set
+# CONFIG_STAGING is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FILE_LOCKING=y
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_BTRFS_FS is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+CONFIG_CRAMFS=y
+# CONFIG_SQUASHFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_NFS_V3_ACL=y
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFSD is not set
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_ACL_SUPPORT=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_REGISTER_V4 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+# CONFIG_MAGIC_SYSRQ is not set
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
+CONFIG_SCHED_DEBUG=y
+CONFIG_SCHEDSTATS=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_SELFTEST=y
+CONFIG_DEBUG_OBJECTS_FREE=y
+CONFIG_DEBUG_OBJECTS_TIMERS=y
+CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_NOMMU_REGIONS is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
+# CONFIG_DEBUG_MEMORY_INIT is not set
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_SG=y
+# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+# CONFIG_BACKTRACE_SELF_TEST is not set
+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+# CONFIG_FAULT_INJECTION is not set
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+
+#
+# Tracers
+#
+# CONFIG_SCHED_TRACER is not set
+# CONFIG_CONTEXT_SWITCH_TRACER is not set
+# CONFIG_BOOT_TRACER is not set
+# CONFIG_TRACE_BRANCH_PROFILING is not set
+# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
+# CONFIG_SAMPLES is not set
+CONFIG_EARLY_PRINTK=y
+CONFIG_HEART_BEAT=y
+# CONFIG_DEBUG_BOOTMEM is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITYFS is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
+# CONFIG_CRYPTO_FIPS is not set
+# CONFIG_CRYPTO_MANAGER is not set
+# CONFIG_CRYPTO_MANAGER2 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_SEQIV is not set
+
+#
+# Block modes
+#
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+
+#
+# Hash modes
+#
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+
+#
+# Digest
+#
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_WP512 is not set
+
+#
+# Ciphers
+#
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+
+#
+# Compression
+#
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_LZO is not set
+
+#
+# Random Number Generation
+#
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_HW=y
+
+#
+# Library routines
+#
+CONFIG_GENERIC_FIND_LAST_BIT=y
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_T10DIF is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC32 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
+CONFIG_HAVE_LMB=y
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
new file mode 100644
index 0000000..31820df
--- /dev/null
+++ b/arch/microblaze/include/asm/Kbuild
@@ -0,0 +1,26 @@
+include include/asm-generic/Kbuild.asm
+
+header-y += auxvec.h
+header-y += errno.h
+header-y += fcntl.h
+header-y += ioctl.h
+header-y += ioctls.h
+header-y += ipcbuf.h
+header-y += linkage.h
+header-y += msgbuf.h
+header-y += poll.h
+header-y += resource.h
+header-y += sembuf.h
+header-y += shmbuf.h
+header-y += sigcontext.h
+header-y += siginfo.h
+header-y += socket.h
+header-y += sockios.h
+header-y += statfs.h
+header-y += stat.h
+header-y += termbits.h
+header-y += ucontext.h
+
+unifdef-y += cputable.h
+unifdef-y += elf.h
+unifdef-y += termios.h
diff --git a/arch/microblaze/include/asm/atomic.h b/arch/microblaze/include/asm/atomic.h
new file mode 100644
index 0000000..a448d94
--- /dev/null
+++ b/arch/microblaze/include/asm/atomic.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_ATOMIC_H
+#define _ASM_MICROBLAZE_ATOMIC_H
+
+#include <linux/types.h>
+#include <linux/compiler.h> /* likely */
+#include <asm/system.h> /* local_irq_XXX and friends */
+
+#define ATOMIC_INIT(i) { (i) }
+#define atomic_read(v) ((v)->counter)
+#define atomic_set(v, i) (((v)->counter) = (i))
+
+#define atomic_inc(v) (atomic_add_return(1, (v)))
+#define atomic_dec(v) (atomic_sub_return(1, (v)))
+
+#define atomic_add(i, v) (atomic_add_return(i, (v)))
+#define atomic_sub(i, v) (atomic_sub_return(i, (v)))
+
+#define atomic_inc_return(v) (atomic_add_return(1, (v)))
+#define atomic_dec_return(v) (atomic_sub_return(1, (v)))
+
+#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0)
+#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
+
+#define atomic_inc_not_zero(v) (atomic_add_unless((v), 1, 0))
+
+#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
+
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+ int ret;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ ret = v->counter;
+ if (likely(ret == old))
+ v->counter = new;
+ local_irq_restore(flags);
+
+ return ret;
+}
+
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
+{
+ int c, old;
+
+ c = atomic_read(v);
+ while (c != u && (old = atomic_cmpxchg((v), c, c + a)) != c)
+ c = old;
+ return c != u;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ *addr &= ~mask;
+ local_irq_restore(flags);
+}
+
+/**
+ * atomic_add_return - add and return
+ * @i: integer value to add
+ * @v: pointer of type atomic_t
+ *
+ * Atomically adds @i to @v and returns @i + @v
+ */
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ unsigned long flags;
+ int val;
+
+ local_irq_save(flags);
+ val = v->counter;
+ v->counter = val += i;
+ local_irq_restore(flags);
+
+ return val;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+ return atomic_add_return(-i, v);
+}
+
+/*
+ * Atomically test *v and decrement if it is greater than 0.
+ * The function returns the old value of *v minus 1.
+ */
+static inline int atomic_dec_if_positive(atomic_t *v)
+{
+ unsigned long flags;
+ int res;
+
+ local_irq_save(flags);
+ res = v->counter - 1;
+ if (res >= 0)
+ v->counter = res;
+ local_irq_restore(flags);
+
+ return res;
+}
+
+#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec() barrier()
+#define smp_mb__after_atomic_dec() barrier()
+#define smp_mb__before_atomic_inc() barrier()
+#define smp_mb__after_atomic_inc() barrier()
+
+#include <asm-generic/atomic.h>
+
+#endif /* _ASM_MICROBLAZE_ATOMIC_H */
diff --git a/arch/microblaze/include/asm/auxvec.h b/arch/microblaze/include/asm/auxvec.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/auxvec.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/bitops.h b/arch/microblaze/include/asm/bitops.h
new file mode 100644
index 0000000..d6df1fd
--- /dev/null
+++ b/arch/microblaze/include/asm/bitops.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_BITOPS_H
+#define _ASM_MICROBLAZE_BITOPS_H
+
+/*
+ * Copyright 1992, Linus Torvalds.
+ */
+
+#include <asm/byteorder.h> /* swab32 */
+#include <asm/system.h> /* save_flags */
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit() barrier()
+#define smp_mb__after_clear_bit() barrier()
+#include <asm-generic/bitops.h>
+#include <asm-generic/bitops/__fls.h>
+
+#endif /* _ASM_MICROBLAZE_BITOPS_H */
diff --git a/arch/microblaze/include/asm/bug.h b/arch/microblaze/include/asm/bug.h
new file mode 100644
index 0000000..8eb2cdd
--- /dev/null
+++ b/arch/microblaze/include/asm/bug.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_BUG_H
+#define _ASM_MICROBLAZE_BUG_H
+
+#include <linux/kernel.h>
+#include <asm-generic/bug.h>
+
+#endif /* _ASM_MICROBLAZE_BUG_H */
diff --git a/arch/microblaze/include/asm/bugs.h b/arch/microblaze/include/asm/bugs.h
new file mode 100644
index 0000000..f2c6593
--- /dev/null
+++ b/arch/microblaze/include/asm/bugs.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_BUGS_H
+#define _ASM_MICROBLAZE_BUGS_H
+
+static inline void check_bugs(void)
+{
+ /* nothing to do */
+}
+
+#endif /* _ASM_MICROBLAZE_BUGS_H */
diff --git a/arch/microblaze/include/asm/byteorder.h b/arch/microblaze/include/asm/byteorder.h
new file mode 100644
index 0000000..ce9c587
--- /dev/null
+++ b/arch/microblaze/include/asm/byteorder.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_BYTEORDER_H
+#define _ASM_MICROBLAZE_BYTEORDER_H
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _ASM_MICROBLAZE_BYTEORDER_H */
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
new file mode 100644
index 0000000..c4c64b4
--- /dev/null
+++ b/arch/microblaze/include/asm/cache.h
@@ -0,0 +1,45 @@
+/*
+ * Cache operations
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_CACHE_H
+#define _ASM_MICROBLAZE_CACHE_H
+
+#include <asm/registers.h>
+
+#define L1_CACHE_SHIFT 2
+/* word-granular cache in microblaze */
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+
+void _enable_icache(void);
+void _disable_icache(void);
+void _invalidate_icache(unsigned int addr);
+
+#define __enable_icache() _enable_icache()
+#define __disable_icache() _disable_icache()
+#define __invalidate_icache(addr) _invalidate_icache(addr)
+
+void _enable_dcache(void);
+void _disable_dcache(void);
+void _invalidate_dcache(unsigned int addr);
+
+#define __enable_dcache() _enable_dcache()
+#define __disable_dcache() _disable_dcache()
+#define __invalidate_dcache(addr) _invalidate_dcache(addr)
+
+/* FIXME - I don't think this is right */
+#ifdef CONFIG_XILINX_UNCACHED_SHADOW
+#define UNCACHED_SHADOW_MASK (CONFIG_XILINX_ERAM_SIZE)
+#endif
+
+#endif /* _ASM_MICROBLAZE_CACHE_H */
diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
new file mode 100644
index 0000000..3300b78
--- /dev/null
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2007 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ * based on v850 version which was
+ * Copyright (C) 2001,02,03 NEC Electronics Corporation
+ * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ */
+
+#ifndef _ASM_MICROBLAZE_CACHEFLUSH_H
+#define _ASM_MICROBLAZE_CACHEFLUSH_H
+
+/* Somebody depends on this; sigh... */
+#include <linux/mm.h>
+
+/*
+ * Cache handling functions.
+ * Microblaze has a write-through data cache, meaning that the data cache
+ * never needs to be flushed. The only flushing operations that are
+ * implemented are to invalidate the instruction cache. These are called
+ * after loading a user application into memory, we must invalidate the
+ * instruction cache to make sure we don't fetch old, bad code.
+ */
+
+/* FIXME for LL-temac driver */
+#define invalidate_dcache_range(start, end) \
+ __invalidate_dcache_range(start, end)
+
+#define flush_cache_all() __invalidate_cache_all()
+#define flush_cache_mm(mm) do { } while (0)
+#define flush_cache_range(vma, start, end) __invalidate_cache_all()
+#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
+
+#define flush_dcache_range(start, end) __invalidate_dcache_range(start, end)
+#define flush_dcache_page(page) do { } while (0)
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
+#define flush_icache_range(start, len) __invalidate_icache_range(start, len)
+#define flush_icache_page(vma, pg) do { } while (0)
+
+#define flush_cache_vmap(start, end) do { } while (0)
+#define flush_cache_vunmap(start, end) do { } while (0)
+
+struct page;
+struct mm_struct;
+struct vm_area_struct;
+
+/* see arch/microblaze/kernel/cache.c */
+extern void __invalidate_icache_all(void);
+extern void __invalidate_icache_range(unsigned long start, unsigned long end);
+extern void __invalidate_icache_page(struct vm_area_struct *vma,
+ struct page *page);
+extern void __invalidate_icache_user_range(struct vm_area_struct *vma,
+ struct page *page,
+ unsigned long adr, int len);
+extern void __invalidate_cache_sigtramp(unsigned long addr);
+
+extern void __invalidate_dcache_all(void);
+extern void __invalidate_dcache_range(unsigned long start, unsigned long end);
+extern void __invalidate_dcache_page(struct vm_area_struct *vma,
+ struct page *page);
+extern void __invalidate_dcache_user_range(struct vm_area_struct *vma,
+ struct page *page,
+ unsigned long adr, int len);
+
+extern inline void __invalidate_cache_all(void)
+{
+ __invalidate_icache_all();
+ __invalidate_dcache_all();
+}
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { memcpy((dst), (src), (len)); \
+ flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
+} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy((dst), (src), (len))
+
+#endif /* _ASM_MICROBLAZE_CACHEFLUSH_H */
diff --git a/arch/microblaze/include/asm/checksum.h b/arch/microblaze/include/asm/checksum.h
new file mode 100644
index 0000000..92b3076
--- /dev/null
+++ b/arch/microblaze/include/asm/checksum.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_CHECKSUM_H
+#define _ASM_MICROBLAZE_CHECKSUM_H
+
+#include <linux/in6.h>
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
+{
+ __asm__("add %0, %0, %1\n\t"
+ "addc %0, %0, %2\n\t"
+ "addc %0, %0, %3\n\t"
+ "addc %0, %0, r0\n\t"
+ : "+&d" (sum)
+ : "d" (saddr), "d" (daddr), "d" (len + proto));
+
+ return sum;
+}
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+extern __wsum csum_partial_copy(const char *src, char *dst, int len, int sum);
+
+/*
+ * the same as csum_partial_copy, but copies from user space.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+extern __wsum csum_partial_copy_from_user(const char *src, char *dst,
+ int len, int sum, int *csum_err);
+
+#define csum_partial_copy_nocheck(src, dst, len, sum) \
+ csum_partial_copy((src), (dst), (len), (sum))
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ *
+ */
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+/*
+ * Fold a partial checksum
+ */
+static inline __sum16 csum_fold(unsigned int sum)
+{
+ sum = (sum & 0xffff) + (sum >> 16);
+ sum = (sum & 0xffff) + (sum >> 16);
+ return ~sum;
+}
+
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
+{
+ return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+extern __sum16 ip_compute_csum(const unsigned char *buff, int len);
+
+#endif /* _ASM_MICROBLAZE_CHECKSUM_H */
diff --git a/arch/microblaze/include/asm/clinkage.h b/arch/microblaze/include/asm/clinkage.h
new file mode 100644
index 0000000..9e21843
--- /dev/null
+++ b/arch/microblaze/include/asm/clinkage.h
@@ -0,0 +1 @@
+#include <linux/linkage.h>
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
new file mode 100644
index 0000000..52f28f6
--- /dev/null
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -0,0 +1,102 @@
+/*
+ * Generic support for queying CPU info
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_CPUINFO_H
+#define _ASM_MICROBLAZE_CPUINFO_H
+
+#include <asm/prom.h>
+
+/* CPU Version and FPGA Family code conversion table type */
+struct cpu_ver_key {
+ const char *s;
+ const unsigned k;
+};
+
+extern const struct cpu_ver_key cpu_ver_lookup[];
+
+struct family_string_key {
+ const char *s;
+ const unsigned k;
+};
+
+extern const struct family_string_key family_string_lookup[];
+
+struct cpuinfo {
+ /* Core CPU configuration */
+ u32 use_instr;
+ u32 use_mult;
+ u32 use_fpu;
+ u32 use_exc;
+ u32 ver_code;
+ u32 mmu;
+
+ /* CPU caches */
+ u32 use_icache;
+ u32 icache_tagbits;
+ u32 icache_write;
+ u32 icache_line;
+ u32 icache_size;
+ unsigned long icache_base;
+ unsigned long icache_high;
+
+ u32 use_dcache;
+ u32 dcache_tagbits;
+ u32 dcache_write;
+ u32 dcache_line;
+ u32 dcache_size;
+ unsigned long dcache_base;
+ unsigned long dcache_high;
+
+ /* Bus connections */
+ u32 use_dopb;
+ u32 use_iopb;
+ u32 use_dlmb;
+ u32 use_ilmb;
+ u32 num_fsl;
+
+ /* CPU interrupt line info */
+ u32 irq_edge;
+ u32 irq_positive;
+
+ u32 area_optimised;
+
+ /* HW debug support */
+ u32 hw_debug;
+ u32 num_pc_brk;
+ u32 num_rd_brk;
+ u32 num_wr_brk;
+ u32 cpu_clock_freq; /* store real freq of cpu */
+ u32 freq_div_hz; /* store freq/HZ */
+
+ /* FPGA family */
+ u32 fpga_family_code;
+
+ /* User define */
+ u32 pvr_user1;
+ u32 pvr_user2;
+};
+
+extern struct cpuinfo cpuinfo;
+
+/* fwd declarations of the various CPUinfo populators */
+void setup_cpuinfo(void);
+
+void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
+void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
+
+static inline unsigned int fcpu(struct device_node *cpu, char *n)
+{
+ int *val;
+ return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0;
+}
+
+#endif /* _ASM_MICROBLAZE_CPUINFO_H */
diff --git a/arch/microblaze/include/asm/cputable.h b/arch/microblaze/include/asm/cputable.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/cputable.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/cputime.h b/arch/microblaze/include/asm/cputime.h
new file mode 100644
index 0000000..6d68ad7
--- /dev/null
+++ b/arch/microblaze/include/asm/cputime.h
@@ -0,0 +1 @@
+#include <asm-generic/cputime.h>
diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h
new file mode 100644
index 0000000..8375ea9
--- /dev/null
+++ b/arch/microblaze/include/asm/current.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_CURRENT_H
+#define _ASM_MICROBLAZE_CURRENT_H
+
+# ifndef __ASSEMBLY__
+/*
+ * Dedicate r31 to keeping the current task pointer
+ */
+register struct task_struct *current asm("r31");
+
+# define get_current() current
+# endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_CURRENT_H */
diff --git a/arch/microblaze/include/asm/delay.h b/arch/microblaze/include/asm/delay.h
new file mode 100644
index 0000000..05b7d39
--- /dev/null
+++ b/arch/microblaze/include/asm/delay.h
@@ -0,0 +1,72 @@
+/*
+ * include/asm-microblaze/delay.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2007 John Williams
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ */
+
+#ifndef _ASM_MICROBLAZE_DELAY_H
+#define _ASM_MICROBLAZE_DELAY_H
+
+extern inline void __delay(unsigned long loops)
+{
+ asm volatile ("# __delay \n\t" \
+ "1: addi %0, %0, -1\t\n" \
+ "bneid %0, 1b \t\n" \
+ "nop \t\n"
+ : "=r" (loops)
+ : "0" (loops));
+}
+
+/*
+ * Note that 19 * 226 == 4294 ==~ 2^32 / 10^6, so
+ * loops = (4294 * usecs * loops_per_jiffy * HZ) / 2^32.
+ *
+ * The mul instruction gives us loops = (a * b) / 2^32.
+ * We choose a = usecs * 19 * HZ and b = loops_per_jiffy * 226
+ * because this lets us support a wide range of HZ and
+ * loops_per_jiffy values without either a or b overflowing 2^32.
+ * Thus we need usecs * HZ <= (2^32 - 1) / 19 = 226050910 and
+ * loops_per_jiffy <= (2^32 - 1) / 226 = 19004280
+ * (which corresponds to ~3800 bogomips at HZ = 100).
+ * -- paulus
+ */
+#define __MAX_UDELAY (226050910UL/HZ) /* maximum udelay argument */
+#define __MAX_NDELAY (4294967295UL/HZ) /* maximum ndelay argument */
+
+extern unsigned long loops_per_jiffy;
+
+extern inline void __udelay(unsigned int x)
+{
+
+ unsigned long long tmp =
+ (unsigned long long)x * (unsigned long long)loops_per_jiffy \
+ * 226LL;
+ unsigned loops = tmp >> 32;
+
+/*
+ __asm__("mulxuu %0,%1,%2" : "=r" (loops) :
+ "r" (x), "r" (loops_per_jiffy * 226));
+*/
+ __delay(loops);
+}
+
+extern void __bad_udelay(void); /* deliberately undefined */
+extern void __bad_ndelay(void); /* deliberately undefined */
+
+#define udelay(n) (__builtin_constant_p(n) ? \
+ ((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \
+ __udelay((n) * (19 * HZ)))
+
+#define ndelay(n) (__builtin_constant_p(n) ? \
+ ((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \
+ __udelay((n) * HZ))
+
+#define muldiv(a, b, c) (((a)*(b))/(c))
+
+#endif /* _ASM_MICROBLAZE_DELAY_H */
diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
new file mode 100644
index 0000000..c042830
--- /dev/null
+++ b/arch/microblaze/include/asm/device.h
@@ -0,0 +1,21 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License v2. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_DEVICE_H
+#define _ASM_MICROBLAZE_DEVICE_H
+
+struct device_node;
+
+struct dev_archdata {
+ /* Optional pointer to an OF device node */
+ struct device_node *of_node;
+};
+
+#endif /* _ASM_MICROBLAZE_DEVICE_H */
+
+
diff --git a/arch/microblaze/include/asm/div64.h b/arch/microblaze/include/asm/div64.h
new file mode 100644
index 0000000..6cd978c
--- /dev/null
+++ b/arch/microblaze/include/asm/div64.h
@@ -0,0 +1 @@
+#include <asm-generic/div64.h>
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
new file mode 100644
index 0000000..1733625
--- /dev/null
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
+#define _ASM_MICROBLAZE_DMA_MAPPING_H
+
+#include <asm/cacheflush.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+
+struct scatterlist;
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
+/* FIXME */
+static inline int
+dma_supported(struct device *dev, u64 mask)
+{
+ return 1;
+}
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG();
+ return 0;
+}
+
+static inline void
+dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+ BUG();
+ return 0;
+}
+
+static inline void
+dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
+ enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline void
+dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline void
+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline void
+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
+ enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline void
+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
+ enum dma_data_direction direction)
+{
+ BUG();
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return 0;
+}
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, int flag)
+{
+ return NULL; /* consistent_alloc(flag, size, dma_handle); */
+}
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle)
+{
+ BUG();
+}
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *ptr, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+
+ return virt_to_bus(ptr);
+}
+
+static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+ size_t size,
+ enum dma_data_direction direction)
+{
+ switch (direction) {
+ case DMA_FROM_DEVICE:
+ flush_dcache_range((unsigned)dma_addr,
+ (unsigned)dma_addr + size);
+ /* Fall through */
+ case DMA_TO_DEVICE:
+ break;
+ default:
+ BUG();
+ }
+}
+
+#endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
new file mode 100644
index 0000000..0967fa0
--- /dev/null
+++ b/arch/microblaze/include/asm/dma.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_DMA_H
+#define _ASM_MICROBLAZE_DMA_H
+
+/* we don't have dma address limit. define it as zero to be
+ * unlimited. */
+#define MAX_DMA_ADDRESS (0)
+
+#endif /* _ASM_MICROBLAZE_DMA_H */
diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h
new file mode 100644
index 0000000..81337f2
--- /dev/null
+++ b/arch/microblaze/include/asm/elf.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_ELF_H
+#define _ASM_MICROBLAZE_ELF_H
+
+/*
+ * Note there is no "official" ELF designation for Microblaze.
+ * I've snaffled the value from the microblaze binutils source code
+ * /binutils/microblaze/include/elf/microblaze.h
+ */
+#define EM_XILINX_MICROBLAZE 0xbaab
+#define ELF_ARCH EM_XILINX_MICROBLAZE
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_XILINX_MICROBLAZE)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS ELFCLASS32
+
+#endif /* _ASM_MICROBLAZE_ELF_H */
diff --git a/arch/microblaze/include/asm/emergency-restart.h b/arch/microblaze/include/asm/emergency-restart.h
new file mode 100644
index 0000000..3711bd9
--- /dev/null
+++ b/arch/microblaze/include/asm/emergency-restart.h
@@ -0,0 +1 @@
+#include <asm-generic/emergency-restart.h>
diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h
new file mode 100644
index 0000000..7f57e42
--- /dev/null
+++ b/arch/microblaze/include/asm/entry.h
@@ -0,0 +1,35 @@
+/*
+ * Definitions used by low-level trap handlers
+ *
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2007 - 2008 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_ENTRY_H
+#define _ASM_MICROBLAZE_ENTRY_H
+
+#include <asm/percpu.h>
+#include <asm/ptrace.h>
+
+/*
+ * These are per-cpu variables required in entry.S, among other
+ * places
+ */
+
+#define PER_CPU(var) per_cpu__##var
+
+# ifndef __ASSEMBLY__
+DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
+DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
+DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
+DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
+DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
+DECLARE_PER_CPU(unsigned int, SYSCALL_SAVE); /* Saved syscall number */
+# endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_ENTRY_H */
diff --git a/arch/microblaze/include/asm/errno.h b/arch/microblaze/include/asm/errno.h
new file mode 100644
index 0000000..4c82b50
--- /dev/null
+++ b/arch/microblaze/include/asm/errno.h
@@ -0,0 +1 @@
+#include <asm-generic/errno.h>
diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
new file mode 100644
index 0000000..4cdd215
--- /dev/null
+++ b/arch/microblaze/include/asm/exceptions.h
@@ -0,0 +1,96 @@
+/*
+ * Preliminary support for HW exception handing for Microblaze
+ *
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_EXCEPTIONS_H
+#define _ASM_MICROBLAZE_EXCEPTIONS_H
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+/* Macros to enable and disable HW exceptions in the MSR */
+/* Define MSR enable bit for HW exceptions */
+#define HWEX_MSR_BIT (1 << 8)
+
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+#define __enable_hw_exceptions() \
+ __asm__ __volatile__ (" msrset r0, %0; \
+ nop;" \
+ : \
+ : "i" (HWEX_MSR_BIT) \
+ : "memory")
+
+#define __disable_hw_exceptions() \
+ __asm__ __volatile__ (" msrclr r0, %0; \
+ nop;" \
+ : \
+ : "i" (HWEX_MSR_BIT) \
+ : "memory")
+#else /* !CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+#define __enable_hw_exceptions() \
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ ori r12, r12, %0; \
+ mts rmsr, r12; \
+ nop;" \
+ : \
+ : "i" (HWEX_MSR_BIT) \
+ : "memory", "r12")
+
+#define __disable_hw_exceptions() \
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ andi r12, r12, ~%0; \
+ mts rmsr, r12; \
+ nop;" \
+ : \
+ : "i" (HWEX_MSR_BIT) \
+ : "memory", "r12")
+#endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+
+asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
+ int fsr, int addr);
+
+#if defined(CONFIG_XMON)
+extern void xmon(struct pt_regs *regs);
+extern int xmon_bpt(struct pt_regs *regs);
+extern int xmon_sstep(struct pt_regs *regs);
+extern int xmon_iabr_match(struct pt_regs *regs);
+extern int xmon_dabr_match(struct pt_regs *regs);
+extern void (*xmon_fault_handler)(struct pt_regs *regs);
+
+void (*debugger)(struct pt_regs *regs) = xmon;
+int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
+int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
+int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
+int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
+void (*debugger_fault_handler)(struct pt_regs *regs);
+#elif defined(CONFIG_KGDB)
+void (*debugger)(struct pt_regs *regs);
+int (*debugger_bpt)(struct pt_regs *regs);
+int (*debugger_sstep)(struct pt_regs *regs);
+int (*debugger_iabr_match)(struct pt_regs *regs);
+int (*debugger_dabr_match)(struct pt_regs *regs);
+void (*debugger_fault_handler)(struct pt_regs *regs);
+#else
+#define debugger(regs) do { } while (0)
+#define debugger_bpt(regs) 0
+#define debugger_sstep(regs) 0
+#define debugger_iabr_match(regs) 0
+#define debugger_dabr_match(regs) 0
+#define debugger_fault_handler ((void (*)(struct pt_regs *))0)
+#endif
+
+#endif /*__ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_EXCEPTIONS_H */
diff --git a/arch/microblaze/include/asm/fcntl.h b/arch/microblaze/include/asm/fcntl.h
new file mode 100644
index 0000000..46ab12d
--- /dev/null
+++ b/arch/microblaze/include/asm/fcntl.h
@@ -0,0 +1 @@
+#include <asm-generic/fcntl.h>
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
new file mode 100644
index 0000000..acf0da5
--- /dev/null
+++ b/arch/microblaze/include/asm/flat.h
@@ -0,0 +1,90 @@
+/*
+ * uClinux flat-format executables
+ *
+ * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_FLAT_H
+#define _ASM_MICROBLAZE_FLAT_H
+
+#include <asm/unaligned.h>
+
+#define flat_stack_align(sp) /* nothing needed */
+#define flat_argvp_envp_on_stack() 0
+#define flat_old_ram_flag(flags) (flags)
+#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
+#define flat_set_persistent(relval, p) 0
+
+/*
+ * Microblaze works a little differently from other arches, because
+ * of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split
+ * over two instructions, an 'imm' instruction which provides the top
+ * 16 bits, then the instruction "proper" which provides the low 16
+ * bits.
+ */
+
+/*
+ * Crack open a symbol reference and extract the address to be
+ * relocated. rp is a potentially unaligned pointer to the
+ * reference
+ */
+
+static inline unsigned long
+flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
+ unsigned long flags, unsigned long *persistent)
+{
+ unsigned long addr;
+ (void)flags;
+
+ /* Is it a split 64/32 reference? */
+ if (relval & 0x80000000) {
+ /* Grab the two halves of the reference */
+ unsigned long val_hi, val_lo;
+
+ val_hi = get_unaligned(rp);
+ val_lo = get_unaligned(rp+1);
+
+ /* Crack the address out */
+ addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+ } else {
+ /* Get the address straight out */
+ addr = get_unaligned(rp);
+ }
+
+ return addr;
+}
+
+/*
+ * Insert an address into the symbol reference at rp. rp is potentially
+ * unaligned.
+ */
+
+static inline void
+flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+{
+ /* Is this a split 64/32 reloc? */
+ if (relval & 0x80000000) {
+ /* Get the two "halves" */
+ unsigned long val_hi = get_unaligned(rp);
+ unsigned long val_lo = get_unaligned(rp + 1);
+
+ /* insert the address */
+ val_hi = (val_hi & 0xffff0000) | addr >> 16;
+ val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
+
+ /* store the two halves back into memory */
+ put_unaligned(val_hi, rp);
+ put_unaligned(val_lo, rp+1);
+ } else {
+ /* Put it straight in, no messing around */
+ put_unaligned(addr, rp);
+ }
+}
+
+#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)
+
+#endif /* _ASM_MICROBLAZE_FLAT_H */
diff --git a/arch/microblaze/include/asm/ftrace.h b/arch/microblaze/include/asm/ftrace.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/ftrace.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
new file mode 100644
index 0000000..0b74582
--- /dev/null
+++ b/arch/microblaze/include/asm/futex.h
@@ -0,0 +1 @@
+#include <asm-generic/futex.h>
diff --git a/arch/microblaze/include/asm/gpio.h b/arch/microblaze/include/asm/gpio.h
new file mode 100644
index 0000000..ea04632
--- /dev/null
+++ b/arch/microblaze/include/asm/gpio.h
@@ -0,0 +1,56 @@
+/*
+ * Generic GPIO API implementation for PowerPC.
+ *
+ * Copyright (c) 2007-2008 MontaVista Software, Inc.
+ *
+ * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_POWERPC_GPIO_H
+#define __ASM_POWERPC_GPIO_H
+
+#include <linux/errno.h>
+#include <asm-generic/gpio.h>
+
+#ifdef CONFIG_GPIOLIB
+
+/*
+ * We don't (yet) implement inlined/rapid versions for on-chip gpios.
+ * Just call gpiolib.
+ */
+static inline int gpio_get_value(unsigned int gpio)
+{
+ return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+ __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+ return __gpio_cansleep(gpio);
+}
+
+/*
+ * Not implemented, yet.
+ */
+static inline int gpio_to_irq(unsigned int gpio)
+{
+ return -ENOSYS;
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+ return -EINVAL;
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+#endif /* __ASM_POWERPC_GPIO_H */
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
new file mode 100644
index 0000000..0f2d6b0
--- /dev/null
+++ b/arch/microblaze/include/asm/hardirq.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_HARDIRQ_H
+#define _ASM_MICROBLAZE_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/current.h>
+#include <linux/ptrace.h>
+
+/* should be defined in each interrupt controller driver */
+extern unsigned int get_irq(struct pt_regs *regs);
+
+typedef struct {
+ unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+void ack_bad_irq(unsigned int irq);
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#endif /* _ASM_MICROBLAZE_HARDIRQ_H */
diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/hw_irq.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
new file mode 100644
index 0000000..8b5853e
--- /dev/null
+++ b/arch/microblaze/include/asm/io.h
@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IO_H
+#define _ASM_MICROBLAZE_IO_H
+
+#include <asm/byteorder.h>
+#include <asm/page.h>
+#include <linux/types.h>
+
+#define IO_SPACE_LIMIT (0xFFFFFFFF)
+
+static inline unsigned char __raw_readb(const volatile void __iomem *addr)
+{
+ return *(volatile unsigned char __force *)addr;
+}
+static inline unsigned short __raw_readw(const volatile void __iomem *addr)
+{
+ return *(volatile unsigned short __force *)addr;
+}
+static inline unsigned int __raw_readl(const volatile void __iomem *addr)
+{
+ return *(volatile unsigned int __force *)addr;
+}
+static inline unsigned long __raw_readq(const volatile void __iomem *addr)
+{
+ return *(volatile unsigned long __force *)addr;
+}
+static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
+{
+ *(volatile unsigned char __force *)addr = v;
+}
+static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
+{
+ *(volatile unsigned short __force *)addr = v;
+}
+static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
+{
+ *(volatile unsigned int __force *)addr = v;
+}
+static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
+{
+ *(volatile unsigned long __force *)addr = v;
+}
+
+/*
+ * read (readb, readw, readl, readq) and write (writeb, writew,
+ * writel, writeq) accessors are for PCI and thus littel endian.
+ * Linux 2.4 for Microblaze had this wrong.
+ */
+static inline unsigned char readb(const volatile void __iomem *addr)
+{
+ return *(volatile unsigned char __force *)addr;
+}
+static inline unsigned short readw(const volatile void __iomem *addr)
+{
+ return le16_to_cpu(*(volatile unsigned short __force *)addr);
+}
+static inline unsigned int readl(const volatile void __iomem *addr)
+{
+ return le32_to_cpu(*(volatile unsigned int __force *)addr);
+}
+static inline void writeb(unsigned char v, volatile void __iomem *addr)
+{
+ *(volatile unsigned char __force *)addr = v;
+}
+static inline void writew(unsigned short v, volatile void __iomem *addr)
+{
+ *(volatile unsigned short __force *)addr = cpu_to_le16(v);
+}
+static inline void writel(unsigned int v, volatile void __iomem *addr)
+{
+ *(volatile unsigned int __force *)addr = cpu_to_le32(v);
+}
+
+/* ioread and iowrite variants. thease are for now same as __raw_
+ * variants of accessors. we might check for endianess in the feature
+ */
+#define ioread8(addr) __raw_readb((u8 *)(addr))
+#define ioread16(addr) __raw_readw((u16 *)(addr))
+#define ioread32(addr) __raw_readl((u32 *)(addr))
+#define iowrite8(v, addr) __raw_writeb((u8)(v), (u8 *)(addr))
+#define iowrite16(v, addr) __raw_writew((u16)(v), (u16 *)(addr))
+#define iowrite32(v, addr) __raw_writel((u32)(v), (u32 *)(addr))
+
+/* These are the definitions for the x86 IO instructions
+ * inb/inw/inl/outb/outw/outl, the "string" versions
+ * insb/insw/insl/outsb/outsw/outsl, and the "pausing" versions
+ * inb_p/inw_p/...
+ * The macros don't do byte-swapping.
+ */
+#define inb(port) readb((u8 *)((port)))
+#define outb(val, port) writeb((val), (u8 *)((unsigned long)(port)))
+#define inw(port) readw((u16 *)((port)))
+#define outw(val, port) writew((val), (u16 *)((unsigned long)(port)))
+#define inl(port) readl((u32 *)((port)))
+#define outl(val, port) writel((val), (u32 *)((unsigned long)(port)))
+
+#define inb_p(port) inb((port))
+#define outb_p(val, port) outb((val), (port))
+#define inw_p(port) inw((port))
+#define outw_p(val, port) outw((val), (port))
+#define inl_p(port) inl((port))
+#define outl_p(val, port) outl((val), (port))
+
+#define memset_io(a, b, c) memset((void *)(a), (b), (c))
+#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
+#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
+
+/**
+ * virt_to_phys - map virtual addresses to physical
+ * @address: address to remap
+ *
+ * The returned physical address is the physical (CPU) mapping for
+ * the memory address given. It is only valid to use this function on
+ * addresses directly mapped or allocated via kmalloc.
+ *
+ * This function does not give bus mappings for DMA transfers. In
+ * almost all conceivable cases a device driver should not be using
+ * this function
+ */
+static inline unsigned long __iomem virt_to_phys(volatile void *address)
+{
+ return __pa((unsigned long)address);
+}
+
+#define virt_to_bus virt_to_phys
+
+/**
+ * phys_to_virt - map physical address to virtual
+ * @address: address to remap
+ *
+ * The returned virtual address is a current CPU mapping for
+ * the memory address given. It is only valid to use this function on
+ * addresses that have a kernel mapping
+ *
+ * This function does not handle bus mappings for DMA transfers. In
+ * almost all conceivable cases a device driver should not be using
+ * this function
+ */
+static inline void *phys_to_virt(unsigned long address)
+{
+ return (void *)__va(address);
+}
+
+#define bus_to_virt(a) phys_to_virt(a)
+
+static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
+ unsigned long flags)
+{
+ return (void *)address;
+}
+
+#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr))
+#define iounmap(addr) ((void)0)
+#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p) __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p) p
+
+/*
+ * Big Endian
+ */
+#define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
+#define out_be16(a, v) __raw_writew((v), (a))
+
+#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
+#define in_be16(a) __raw_readw(a)
+
+/*
+ * Little endian
+ */
+
+#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a));
+#define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
+
+#define in_le32(a) __le32_to_cpu(__raw_readl(a))
+#define in_le16(a) __le16_to_cpu(__raw_readw(a))
+
+/* Byte ops */
+#define out_8(a, v) __raw_writeb((v), (a))
+#define in_8(a) __raw_readb(a)
+
+/* FIXME */
+static inline void __iomem *ioport_map(unsigned long port, unsigned int len)
+{
+ return (void __iomem *) (port);
+}
+
+static inline void ioport_unmap(void __iomem *addr)
+{
+ /* Nothing to do */
+}
+
+#endif /* _ASM_MICROBLAZE_IO_H */
diff --git a/arch/microblaze/include/asm/ioctl.h b/arch/microblaze/include/asm/ioctl.h
new file mode 100644
index 0000000..b279fe0
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/arch/microblaze/include/asm/ioctls.h b/arch/microblaze/include/asm/ioctls.h
new file mode 100644
index 0000000..03582b2
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctls.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IOCTLS_H
+#define _ASM_MICROBLAZE_IOCTLS_H
+
+#include <linux/ioctl.h>
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TCGETS 0x5401
+#define TCSETS 0x5402
+#define TCSETSW 0x5403
+#define TCSETSF 0x5404
+#define TCGETA 0x5405
+#define TCSETA 0x5406
+#define TCSETAW 0x5407
+#define TCSETAF 0x5408
+#define TCSBRK 0x5409
+#define TCXONC 0x540A
+#define TCFLSH 0x540B
+#define TIOCEXCL 0x540C
+#define TIOCNXCL 0x540D
+#define TIOCSCTTY 0x540E
+#define TIOCGPGRP 0x540F
+#define TIOCSPGRP 0x5410
+#define TIOCOUTQ 0x5411
+#define TIOCSTI 0x5412
+#define TIOCGWINSZ 0x5413
+#define TIOCSWINSZ 0x5414
+#define TIOCMGET 0x5415
+#define TIOCMBIS 0x5416
+#define TIOCMBIC 0x5417
+#define TIOCMSET 0x5418
+#define TIOCGSOFTCAR 0x5419
+#define TIOCSSOFTCAR 0x541A
+#define FIONREAD 0x541B
+#define TIOCINQ FIONREAD
+#define TIOCLINUX 0x541C
+#define TIOCCONS 0x541D
+#define TIOCGSERIAL 0x541E
+#define TIOCSSERIAL 0x541F
+#define TIOCPKT 0x5420
+#define FIONBIO 0x5421
+#define TIOCNOTTY 0x5422
+#define TIOCSETD 0x5423
+#define TIOCGETD 0x5424
+#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
+#define TIOCTTYGSTRUCT 0x5426 /* For debugging only */
+#define TIOCSBRK 0x5427 /* BSD compatibility */
+#define TIOCCBRK 0x5428 /* BSD compatibility */
+#define TIOCGSID 0x5429 /* Return the session ID of FD */
+/* Get Pty Number (of pty-mux device) */
+#define TIOCGPTN _IOR('T', 0x30, unsigned int)
+#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
+
+#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+#define FIOCLEX 0x5451
+#define FIOASYNC 0x5452
+#define TIOCSERCONFIG 0x5453
+#define TIOCSERGWILD 0x5454
+#define TIOCSERSWILD 0x5455
+#define TIOCGLCKTRMIOS 0x5456
+#define TIOCSLCKTRMIOS 0x5457
+#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
+#define TIOCSERGETLSR 0x5459 /* Get line status register */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+
+#define FIOQSIZE 0x545E
+
+/* Used for packet mode */
+#define TIOCPKT_DATA 0
+#define TIOCPKT_FLUSHREAD 1
+#define TIOCPKT_FLUSHWRITE 2
+#define TIOCPKT_STOP 4
+#define TIOCPKT_START 8
+#define TIOCPKT_NOSTOP 16
+#define TIOCPKT_DOSTOP 32
+
+#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
+
+#endif /* _ASM_MICROBLAZE_IOCTLS_H */
diff --git a/arch/microblaze/include/asm/ipc.h b/arch/microblaze/include/asm/ipc.h
new file mode 100644
index 0000000..a46e3d9
--- /dev/null
+++ b/arch/microblaze/include/asm/ipc.h
@@ -0,0 +1 @@
+#include <asm-generic/ipc.h>
diff --git a/arch/microblaze/include/asm/ipcbuf.h b/arch/microblaze/include/asm/ipcbuf.h
new file mode 100644
index 0000000..b056fa4
--- /dev/null
+++ b/arch/microblaze/include/asm/ipcbuf.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IPCBUF_H
+#define _ASM_MICROBLAZE_IPCBUF_H
+
+/*
+ * The user_ipc_perm structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct ipc64_perm {
+ __kernel_key_t key;
+ __kernel_uid32_t uid;
+ __kernel_gid32_t gid;
+ __kernel_uid32_t cuid;
+ __kernel_gid32_t cgid;
+ __kernel_mode_t mode;
+ unsigned short __pad1;
+ unsigned short seq;
+ unsigned short __pad2;
+ unsigned long __unused1;
+ unsigned long __unused2;
+};
+
+#endif /* _ASM_MICROBLAZE_IPCBUF_H */
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
new file mode 100644
index 0000000..db515de
--- /dev/null
+++ b/arch/microblaze/include/asm/irq.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IRQ_H
+#define _ASM_MICROBLAZE_IRQ_H
+
+#define NR_IRQS 32
+
+#include <linux/interrupt.h>
+
+extern unsigned int nr_irq;
+
+#define NO_IRQ (-1)
+
+static inline int irq_canonicalize(int irq)
+{
+ return irq;
+}
+
+struct pt_regs;
+extern void do_IRQ(struct pt_regs *regs);
+
+/* irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
+ * @device: Device node of the device whose interrupt is to be mapped
+ * @index: Index of the interrupt to map
+ *
+ * This function is a wrapper that chains of_irq_map_one() and
+ * irq_create_of_mapping() to make things easier to callers
+ */
+struct device_node;
+extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index);
+
+/** FIXME - not implement
+ * irq_dispose_mapping - Unmap an interrupt
+ * @virq: linux virq number of the interrupt to unmap
+ */
+static inline void irq_dispose_mapping(unsigned int virq)
+{
+ return;
+}
+
+#endif /* _ASM_MICROBLAZE_IRQ_H */
diff --git a/arch/microblaze/include/asm/irq_regs.h b/arch/microblaze/include/asm/irq_regs.h
new file mode 100644
index 0000000..3dd9c0b
--- /dev/null
+++ b/arch/microblaze/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h
new file mode 100644
index 0000000..dea6564
--- /dev/null
+++ b/arch/microblaze/include/asm/irqflags.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IRQFLAGS_H
+#define _ASM_MICROBLAZE_IRQFLAGS_H
+
+#include <linux/irqflags.h>
+
+# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+
+# define local_irq_save(flags) \
+ do { \
+ asm volatile ("# local_irq_save \n\t" \
+ "msrclr %0, %1 \n\t" \
+ "nop \n\t" \
+ : "=r"(flags) \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_disable() \
+ do { \
+ asm volatile ("# local_irq_disable \n\t" \
+ "msrclr r0, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_enable() \
+ do { \
+ asm volatile ("# local_irq_enable \n\t" \
+ "msrset r0, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */
+
+# define local_irq_save(flags) \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_save \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "andi %1, %0, %2 \n\t" \
+ "mts rmsr, %1 \n\t" \
+ "nop \n\t" \
+ : "=r"(flags), "=r" (tmp) \
+ : "i"(~MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_disable() \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_disable \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "andi %0, %0, %1 \n\t" \
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : "=r"(tmp) \
+ : "i"(~MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_enable() \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_enable \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "ori %0, %0, %1 \n\t" \
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : "=r"(tmp) \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+
+#define local_save_flags(flags) \
+ do { \
+ asm volatile ("# local_save_flags \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ : "=r"(flags) \
+ : \
+ : "memory"); \
+ } while (0)
+
+#define local_irq_restore(flags) \
+ do { \
+ asm volatile ("# local_irq_restore \n\t"\
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "r"(flags) \
+ : "memory"); \
+ } while (0)
+
+static inline int irqs_disabled(void)
+{
+ unsigned long flags;
+
+ local_save_flags(flags);
+ return ((flags & MSR_IE) == 0);
+}
+
+#define raw_irqs_disabled irqs_disabled
+#define raw_irqs_disabled_flags(flags) ((flags) == 0)
+
+#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */
diff --git a/arch/microblaze/include/asm/kdebug.h b/arch/microblaze/include/asm/kdebug.h
new file mode 100644
index 0000000..6ece1b0
--- /dev/null
+++ b/arch/microblaze/include/asm/kdebug.h
@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>
diff --git a/arch/microblaze/include/asm/kmap_types.h b/arch/microblaze/include/asm/kmap_types.h
new file mode 100644
index 0000000..4d7e222
--- /dev/null
+++ b/arch/microblaze/include/asm/kmap_types.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_KMAP_TYPES_H
+#define _ASM_MICROBLAZE_KMAP_TYPES_H
+
+enum km_type {
+ KM_BOUNCE_READ,
+ KM_SKB_SUNRPC_DATA,
+ KM_SKB_DATA_SOFTIRQ,
+ KM_USER0,
+ KM_USER1,
+ KM_BIO_SRC_IRQ,
+ KM_BIO_DST_IRQ,
+ KM_PTE0,
+ KM_PTE1,
+ KM_IRQ0,
+ KM_IRQ1,
+ KM_SOFTIRQ0,
+ KM_SOFTIRQ1,
+ KM_TYPE_NR,
+};
+
+#endif /* _ASM_MICROBLAZE_KMAP_TYPES_H */
diff --git a/arch/microblaze/include/asm/linkage.h b/arch/microblaze/include/asm/linkage.h
new file mode 100644
index 0000000..3a8e36d
--- /dev/null
+++ b/arch/microblaze/include/asm/linkage.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_LINKAGE_H
+#define _ASM_MICROBLAZE_LINKAGE_H
+
+#define __ALIGN .align 4
+#define __ALIGN_STR ".align 4"
+
+#endif /* _ASM_MICROBLAZE_LINKAGE_H */
diff --git a/arch/microblaze/include/asm/lmb.h b/arch/microblaze/include/asm/lmb.h
new file mode 100644
index 0000000..a0a0a92
--- /dev/null
+++ b/arch/microblaze/include/asm/lmb.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_LMB_H
+#define _ASM_MICROBLAZE_LMB_H
+
+/* LMB limit is OFF */
+#define LMB_REAL_LIMIT 0xFFFFFFFF
+
+#endif /* _ASM_MICROBLAZE_LMB_H */
+
+
diff --git a/arch/microblaze/include/asm/local.h b/arch/microblaze/include/asm/local.h
new file mode 100644
index 0000000..c11c530
--- /dev/null
+++ b/arch/microblaze/include/asm/local.h
@@ -0,0 +1 @@
+#include <asm-generic/local.h>
diff --git a/arch/microblaze/include/asm/mman.h b/arch/microblaze/include/asm/mman.h
new file mode 100644
index 0000000..4914b13
--- /dev/null
+++ b/arch/microblaze/include/asm/mman.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMAN_H
+#define _ASM_MICROBLAZE_MMAN_H
+
+#include <asm-generic/mman.h>
+
+#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
+#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
+#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
+#define MAP_LOCKED 0x2000 /* pages are locked */
+#define MAP_NORESERVE 0x4000 /* don't check for reservations */
+#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
+#define MAP_NONBLOCK 0x10000 /* do not block on IO */
+
+#define MCL_CURRENT 1 /* lock all current mappings */
+#define MCL_FUTURE 2 /* lock all future mappings */
+
+#endif /* _ASM_MICROBLAZE_MMAN_H */
diff --git a/arch/microblaze/include/asm/mmu.h b/arch/microblaze/include/asm/mmu.h
new file mode 100644
index 0000000..0e0431d
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_H
+#define _ASM_MICROBLAZE_MMU_H
+
+#ifndef __ASSEMBLY__
+typedef struct {
+ struct vm_list_struct *vmlist;
+ unsigned long end_brk;
+} mm_context_t;
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_MMU_H */
diff --git a/arch/microblaze/include/asm/mmu_context.h b/arch/microblaze/include/asm/mmu_context.h
new file mode 100644
index 0000000..150ca01
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu_context.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H
+#define _ASM_MICROBLAZE_MMU_CONTEXT_H
+
+# define init_new_context(tsk, mm) ({ 0; })
+
+# define enter_lazy_tlb(mm, tsk) do {} while (0)
+# define change_mm_context(old, ctx, _pml4) do {} while (0)
+# define destroy_context(mm) do {} while (0)
+# define deactivate_mm(tsk, mm) do {} while (0)
+# define switch_mm(prev, next, tsk) do {} while (0)
+# define activate_mm(prev, next) do {} while (0)
+
+#endif /* _ASM_MICROBLAZE_MMU_CONTEXT_H */
diff --git a/arch/microblaze/include/asm/module.h b/arch/microblaze/include/asm/module.h
new file mode 100644
index 0000000..914565a
--- /dev/null
+++ b/arch/microblaze/include/asm/module.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_MODULE_H
+#define _ASM_MICROBLAZE_MODULE_H
+
+/* Microblaze Relocations */
+#define R_MICROBLAZE_NONE 0
+#define R_MICROBLAZE_32 1
+#define R_MICROBLAZE_32_PCREL 2
+#define R_MICROBLAZE_64_PCREL 3
+#define R_MICROBLAZE_32_PCREL_LO 4
+#define R_MICROBLAZE_64 5
+#define R_MICROBLAZE_32_LO 6
+#define R_MICROBLAZE_SRO32 7
+#define R_MICROBLAZE_SRW32 8
+#define R_MICROBLAZE_64_NONE 9
+#define R_MICROBLAZE_32_SYM_OP_SYM 10
+/* Keep this the last entry. */
+#define R_MICROBLAZE_NUM 11
+
+struct mod_arch_specific {
+ int foo;
+};
+
+#define Elf_Shdr Elf32_Shdr
+#define Elf_Sym Elf32_Sym
+#define Elf_Ehdr Elf32_Ehdr
+
+typedef struct { volatile int counter; } module_t;
+
+#endif /* _ASM_MICROBLAZE_MODULE_H */
diff --git a/arch/microblaze/include/asm/msgbuf.h b/arch/microblaze/include/asm/msgbuf.h
new file mode 100644
index 0000000..09dd970
--- /dev/null
+++ b/arch/microblaze/include/asm/msgbuf.h
@@ -0,0 +1,31 @@
+#ifndef _ASM_MICROBLAZE_MSGBUF_H
+#define _ASM_MICROBLAZE_MSGBUF_H
+
+/*
+ * The msqid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct msqid64_ds {
+ struct ipc64_perm msg_perm;
+ __kernel_time_t msg_stime; /* last msgsnd time */
+ unsigned long __unused1;
+ __kernel_time_t msg_rtime; /* last msgrcv time */
+ unsigned long __unused2;
+ __kernel_time_t msg_ctime; /* last change time */
+ unsigned long __unused3;
+ unsigned long msg_cbytes; /* current number of bytes on queue */
+ unsigned long msg_qnum; /* number of messages in queue */
+ unsigned long msg_qbytes; /* max number of bytes on queue */
+ __kernel_pid_t msg_lspid; /* pid of last msgsnd */
+ __kernel_pid_t msg_lrpid; /* last receive pid */
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+#endif /* _ASM_MICROBLAZE_MSGBUF_H */
diff --git a/arch/microblaze/include/asm/mutex.h b/arch/microblaze/include/asm/mutex.h
new file mode 100644
index 0000000..ff6101a
--- /dev/null
+++ b/arch/microblaze/include/asm/mutex.h
@@ -0,0 +1 @@
+#include <asm-generic/mutex-dec.h>
diff --git a/arch/microblaze/include/asm/namei.h b/arch/microblaze/include/asm/namei.h
new file mode 100644
index 0000000..61d60b8
--- /dev/null
+++ b/arch/microblaze/include/asm/namei.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_NAMEI_H
+#define _ASM_MICROBLAZE_NAMEI_H
+
+#ifdef __KERNEL__
+
+/* This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ * Look at asm-sparc/namei.h for details.
+ */
+#define __emul_prefix() NULL
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_NAMEI_H */
diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h
new file mode 100644
index 0000000..ba917cf
--- /dev/null
+++ b/arch/microblaze/include/asm/of_device.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ *
+ * based on PowerPC of_device.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_OF_DEVICE_H
+#define _ASM_MICROBLAZE_OF_DEVICE_H
+#ifdef __KERNEL__
+
+#include <linux/device.h>
+#include <linux/of.h>
+
+/*
+ * The of_device is a kind of "base class" that is a superset of
+ * struct device for use by devices attached to an OF node and
+ * probed using OF properties.
+ */
+struct of_device {
+ struct device_node *node; /* to be obsoleted */
+ u64 dma_mask; /* DMA mask */
+ struct device dev; /* Generic device interface */
+};
+
+extern ssize_t of_device_get_modalias(struct of_device *ofdev,
+ char *str, ssize_t len);
+
+extern struct of_device *of_device_alloc(struct device_node *np,
+ const char *bus_id,
+ struct device *parent);
+
+extern int of_device_uevent(struct device *dev,
+ struct kobj_uevent_env *env);
+
+extern void of_device_make_bus_id(struct of_device *dev);
+
+/* This is just here during the transition */
+#include <linux/of_device.h>
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_OF_DEVICE_H */
diff --git a/arch/microblaze/include/asm/of_platform.h b/arch/microblaze/include/asm/of_platform.h
new file mode 100644
index 0000000..187c0ee
--- /dev/null
+++ b/arch/microblaze/include/asm/of_platform.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
+ * <benh@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_MICROBLAZE_OF_PLATFORM_H
+#define _ASM_MICROBLAZE_OF_PLATFORM_H
+
+/* This is just here during the transition */
+#include <linux/of_platform.h>
+
+/*
+ * The list of OF IDs below is used for matching bus types in the
+ * system whose devices are to be exposed as of_platform_devices.
+ *
+ * This is the default list valid for most platforms. This file provides
+ * functions who can take an explicit list if necessary though
+ *
+ * The search is always performed recursively looking for children of
+ * the provided device_node and recursively if such a children matches
+ * a bus type in the list
+ */
+
+static const struct of_device_id of_default_bus_ids[] = {
+ { .type = "soc", },
+ { .compatible = "soc", },
+ { .type = "plb5", },
+ { .type = "plb4", },
+ { .type = "opb", },
+ { .type = "simple", },
+ {},
+};
+
+/* Platform drivers register/unregister */
+static inline int of_register_platform_driver(struct of_platform_driver *drv)
+{
+ return of_register_driver(drv, &of_platform_bus_type);
+}
+static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
+{
+ of_unregister_driver(drv);
+}
+
+/* Platform devices and busses creation */
+extern struct of_device *of_platform_device_create(struct device_node *np,
+ const char *bus_id,
+ struct device *parent);
+/* pseudo "matches" value to not do deep probe */
+#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
+
+extern int of_platform_bus_probe(struct device_node *root,
+ const struct of_device_id *matches,
+ struct device *parent);
+
+extern struct of_device *of_find_device_by_phandle(phandle ph);
+
+extern void of_instantiate_rtc(void);
+
+#endif /* _ASM_MICROBLAZE_OF_PLATFORM_H */
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
new file mode 100644
index 0000000..7238dcf
--- /dev/null
+++ b/arch/microblaze/include/asm/page.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ * Changes for MMU support:
+ * Copyright (C) 2007 Xilinx, Inc. All rights reserved.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PAGE_H
+#define _ASM_MICROBLAZE_PAGE_H
+
+#include <linux/pfn.h>
+#include <asm/setup.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT (12)
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
+#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
+
+/* align addr on a size boundary - adjust address up/down if needed */
+#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1)))
+#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
+
+/* align addr on a size boundary - adjust address up if needed */
+#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
+
+/*
+ * PAGE_OFFSET -- the first address of the first page of memory. When not
+ * using MMU this corresponds to the first free page in physical memory (aligned
+ * on a page boundary).
+ */
+extern unsigned int __page_offset;
+#define PAGE_OFFSET __page_offset
+
+#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
+#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
+#define free_user_page(page, addr) free_page(addr)
+
+#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
+
+
+#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
+#define copy_user_page(vto, vfrom, vaddr, topg) \
+ memcpy((vto), (vfrom), PAGE_SIZE)
+
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct page *pgtable_t;
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { unsigned long ste[64]; } pmd_t;
+typedef struct { pmd_t pue[1]; } pud_t;
+typedef struct { pud_t pge[1]; } pgd_t;
+
+
+#define pte_val(x) ((x).pte)
+#define pgprot_val(x) ((x).pgprot)
+#define pmd_val(x) ((x).ste[0])
+#define pud_val(x) ((x).pue[0])
+#define pgd_val(x) ((x).pge[0])
+
+#define __pte(x) ((pte_t) { (x) })
+#define __pmd(x) ((pmd_t) { (x) })
+#define __pgd(x) ((pgd_t) { (x) })
+#define __pgprot(x) ((pgprot_t) { (x) })
+
+/**
+ * Conversions for virtual address, physical address, pfn, and struct
+ * page are defined in the following files.
+ *
+ * virt -+
+ * | asm-microblaze/page.h
+ * phys -+
+ * | linux/pfn.h
+ * pfn -+
+ * | asm-generic/memory_model.h
+ * page -+
+ *
+ */
+
+extern unsigned long max_low_pfn;
+extern unsigned long min_low_pfn;
+extern unsigned long max_pfn;
+
+#define __pa(vaddr) ((unsigned long) (vaddr))
+#define __va(paddr) ((void *) (paddr))
+
+#define phys_to_pfn(phys) (PFN_DOWN(phys))
+#define pfn_to_phys(pfn) (PFN_PHYS(pfn))
+
+#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr))))
+#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn)))
+
+#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
+#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page)))
+
+#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
+#define page_to_bus(page) (page_to_phys(page))
+#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr)))
+
+extern unsigned int memory_start;
+extern unsigned int memory_end;
+extern unsigned int memory_size;
+
+#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_mapnr)
+
+#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
+
+#else
+#define tophys(rd, rs) (addik rd, rs, 0)
+#define tovirt(rd, rs) (addik rd, rs, 0)
+#endif /* __ASSEMBLY__ */
+
+#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr)))
+
+/* Convert between virtual and physical address for MMU. */
+/* Handle MicroBlaze processor with virtual memory. */
+#define __virt_to_phys(addr) addr
+#define __phys_to_virt(addr) addr
+
+#define TOPHYS(addr) __virt_to_phys(addr)
+
+#endif /* __KERNEL__ */
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/page.h>
+
+#endif /* _ASM_MICROBLAZE_PAGE_H */
diff --git a/arch/microblaze/include/asm/param.h b/arch/microblaze/include/asm/param.h
new file mode 100644
index 0000000..8c538a4
--- /dev/null
+++ b/arch/microblaze/include/asm/param.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PARAM_H
+#define _ASM_MICROBLAZE_PARAM_H
+
+#ifdef __KERNEL__
+#define HZ CONFIG_HZ /* internal kernel timer frequency */
+#define USER_HZ 100 /* for user interfaces in "ticks" */
+#define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
+#endif /* __KERNEL__ */
+
+#ifndef HZ
+#define HZ 100
+#endif
+
+#define EXEC_PAGESIZE 4096
+
+#ifndef NOGROUP
+#define NOGROUP (-1)
+#endif
+
+#define MAXHOSTNAMELEN 64 /* max length of hostname */
+
+#endif /* _ASM_MICROBLAZE_PARAM_H */
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
new file mode 100644
index 0000000..7ad28f6
--- /dev/null
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -0,0 +1 @@
+#include <linux/pci.h>
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
new file mode 100644
index 0000000..ca03794
--- /dev/null
+++ b/arch/microblaze/include/asm/pci.h
@@ -0,0 +1 @@
+#include <linux/io.h>
diff --git a/arch/microblaze/include/asm/percpu.h b/arch/microblaze/include/asm/percpu.h
new file mode 100644
index 0000000..06a959d
--- /dev/null
+++ b/arch/microblaze/include/asm/percpu.h
@@ -0,0 +1 @@
+#include <asm-generic/percpu.h>
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
new file mode 100644
index 0000000..2a4b354
--- /dev/null
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PGALLOC_H
+#define _ASM_MICROBLAZE_PGALLOC_H
+
+#define check_pgt_cache() do {} while (0)
+
+#endif /* _ASM_MICROBLAZE_PGALLOC_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
new file mode 100644
index 0000000..4df31e4
--- /dev/null
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PGTABLE_H
+#define _ASM_MICROBLAZE_PGTABLE_H
+
+#include <asm/setup.h>
+
+#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
+ remap_pfn_range(vma, vaddr, pfn, size, prot)
+
+#define pgd_present(pgd) (1) /* pages are always present on non MMU */
+#define pgd_none(pgd) (0)
+#define pgd_bad(pgd) (0)
+#define pgd_clear(pgdp)
+#define kern_addr_valid(addr) (1)
+#define pmd_offset(a, b) ((void *) 0)
+
+#define PAGE_NONE __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_SHARED __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_COPY __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_READONLY __pgprot(0) /* these mean nothing to non MMU */
+#define PAGE_KERNEL __pgprot(0) /* these mean nothing to non MMU */
+
+#define __swp_type(x) (0)
+#define __swp_offset(x) (0)
+#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+
+#ifndef __ASSEMBLY__
+static inline int pte_file(pte_t pte) { return 0; }
+#endif /* __ASSEMBLY__ */
+
+#define ZERO_PAGE(vaddr) ({ BUG(); NULL; })
+
+#define swapper_pg_dir ((pgd_t *) NULL)
+
+#define pgtable_cache_init() do {} while (0)
+
+#define arch_enter_lazy_cpu_mode() do {} while (0)
+
+#ifndef __ASSEMBLY__
+#include <asm-generic/pgtable.h>
+
+void setup_memory(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_PGTABLE_H */
diff --git a/arch/microblaze/include/asm/poll.h b/arch/microblaze/include/asm/poll.h
new file mode 100644
index 0000000..c98509d
--- /dev/null
+++ b/arch/microblaze/include/asm/poll.h
@@ -0,0 +1 @@
+#include <asm-generic/poll.h>
diff --git a/arch/microblaze/include/asm/posix_types.h b/arch/microblaze/include/asm/posix_types.h
new file mode 100644
index 0000000..b4df41c
--- /dev/null
+++ b/arch/microblaze/include/asm/posix_types.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_POSIX_TYPES_H
+#define _ASM_MICROBLAZE_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc. Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long __kernel_ino_t;
+typedef unsigned int __kernel_mode_t;
+typedef unsigned int __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef unsigned int __kernel_ipc_pid_t;
+typedef unsigned int __kernel_uid_t;
+typedef unsigned int __kernel_gid_t;
+typedef unsigned long __kernel_size_t;
+typedef long __kernel_ssize_t;
+typedef int __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_timer_t;
+typedef int __kernel_clockid_t;
+typedef int __kernel_daddr_t;
+typedef char *__kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+
+typedef unsigned int __kernel_old_uid_t;
+typedef unsigned int __kernel_old_gid_t;
+typedef unsigned int __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long __kernel_loff_t;
+#endif
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+ int val[2];
+#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+ int __val[2];
+#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
+} __kernel_fsid_t;
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+
+#undef __FD_SET
+#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+
+#undef __FD_CLR
+#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+
+#undef __FD_ISSET
+#define __FD_ISSET(d, set) (!!((set)->fds_bits[__FDELT(d)] & __FDMASK(d)))
+
+#undef __FD_ZERO
+#define __FD_ZERO(fdsetp) (memset(fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
+
+#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
+
+#endif /* _ASM_MICROBLAZE_POSIX_TYPES_H */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
new file mode 100644
index 0000000..d8e1543
--- /dev/null
+++ b/arch/microblaze/include/asm/processor.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PROCESSOR_H
+#define _ASM_MICROBLAZE_PROCESSOR_H
+
+#include <asm/ptrace.h>
+#include <asm/setup.h>
+#include <asm/registers.h>
+#include <asm/segment.h>
+
+# ifndef __ASSEMBLY__
+/* from kernel/cpu/mb.c */
+extern const struct seq_operations cpuinfo_op;
+
+# define cpu_relax() barrier()
+# define cpu_sleep() do {} while (0)
+# define prepare_to_copy(tsk) do {} while (0)
+
+# endif /* __ASSEMBLY__ */
+
+/*
+ * User space process size: memory size
+ *
+ * TASK_SIZE on MMU cpu is usually 1GB. However, on no-MMU arch, both
+ * user processes and the kernel is on the same memory region. They
+ * both share the memory space and that is limited by the amount of
+ * physical memory. thus, we set TASK_SIZE == amount of total memory.
+ */
+# define TASK_SIZE (0x81000000 - 0x80000000)
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+# define current_text_addr() ({ __label__ _l; _l: &&_l; })
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's. We won't be using it
+ */
+# define TASK_UNMAPPED_BASE 0
+
+/* definition in include/linux/sched.h */
+struct task_struct;
+
+/* thread_struct is gone. use thread_info instead. */
+struct thread_struct { };
+# define INIT_THREAD { }
+
+/* Do necessary setup to start up a newly executed thread. */
+static inline void start_thread(struct pt_regs *regs,
+ unsigned long pc,
+ unsigned long usp)
+{
+ regs->pc = pc;
+ regs->r1 = usp;
+ regs->kernel_mode = 0;
+}
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+}
+
+/* Free all resources held by a thread. */
+static inline void exit_thread(void)
+{
+}
+
+extern unsigned long thread_saved_pc(struct task_struct *t);
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+/*
+ * create a kernel thread without removing it from tasklists
+ */
+extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+# define task_pt_regs(tsk) \
+ (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1)
+
+# define KSTK_EIP(tsk) (0)
+# define KSTK_ESP(tsk) (0)
+
+#endif /* _ASM_MICROBLAZE_PROCESSOR_H */
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
new file mode 100644
index 0000000..20f7b3a
--- /dev/null
+++ b/arch/microblaze/include/asm/prom.h
@@ -0,0 +1,313 @@
+/*
+ * Definitions for talking to the Open Firmware PROM on
+ * Power Macintosh computers.
+ *
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_MICROBLAZE_PROM_H
+#define _ASM_MICROBLAZE_PROM_H
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/platform_device.h>
+#include <asm/irq.h>
+#include <asm/atomic.h>
+
+#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
+#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
+
+#define of_compat_cmp(s1, s2, l) strncasecmp((s1), (s2), (l))
+#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
+#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
+
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER 0xd00dfeed /* marker */
+#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
+#define OF_DT_END_NODE 0x2 /* End node */
+#define OF_DT_PROP 0x3 /* Property: name off, size, content */
+#define OF_DT_NOP 0x4 /* nop */
+#define OF_DT_END 0x9
+
+#define OF_DT_VERSION 0x10
+
+/*
+ * This is what gets passed to the kernel by prom_init or kexec
+ *
+ * The dt struct contains the device tree structure, full pathes and
+ * property contents. The dt strings contain a separate block with just
+ * the strings for the property names, and is fully page aligned and
+ * self contained in a page, so that it can be kept around by the kernel,
+ * each property name appears only once in this page (cheap compression)
+ *
+ * the mem_rsvmap contains a map of reserved ranges of physical memory,
+ * passing it here instead of in the device-tree itself greatly simplifies
+ * the job of everybody. It's just a list of u64 pairs (base/size) that
+ * ends when size is 0
+ */
+struct boot_param_header {
+ u32 magic; /* magic word OF_DT_HEADER */
+ u32 totalsize; /* total size of DT block */
+ u32 off_dt_struct; /* offset to structure */
+ u32 off_dt_strings; /* offset to strings */
+ u32 off_mem_rsvmap; /* offset to memory reserve map */
+ u32 version; /* format version */
+ u32 last_comp_version; /* last compatible version */
+ /* version 2 fields below */
+ u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
+ /* version 3 fields below */
+ u32 dt_strings_size; /* size of the DT strings block */
+ /* version 17 fields below */
+ u32 dt_struct_size; /* size of the DT structure block */
+};
+
+typedef u32 phandle;
+typedef u32 ihandle;
+
+struct property {
+ char *name;
+ int length;
+ void *value;
+ struct property *next;
+};
+
+struct device_node {
+ const char *name;
+ const char *type;
+ phandle node;
+ phandle linux_phandle;
+ char *full_name;
+
+ struct property *properties;
+ struct property *deadprops; /* removed properties */
+ struct device_node *parent;
+ struct device_node *child;
+ struct device_node *sibling;
+ struct device_node *next; /* next device of same type */
+ struct device_node *allnext; /* next in list of all nodes */
+ struct proc_dir_entry *pde; /* this node's proc directory */
+ struct kref kref;
+ unsigned long _flags;
+ void *data;
+};
+
+extern struct device_node *of_chosen;
+
+static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
+{
+ return test_bit(flag, &n->_flags);
+}
+
+static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
+{
+ set_bit(flag, &n->_flags);
+}
+
+#define HAVE_ARCH_DEVTREE_FIXUPS
+
+static inline void set_node_proc_entry(struct device_node *dn,
+ struct proc_dir_entry *de)
+{
+ dn->pde = de;
+}
+
+extern struct device_node *allnodes; /* temporary while merging */
+extern rwlock_t devtree_lock; /* temporary while merging */
+
+extern struct device_node *of_find_all_nodes(struct device_node *prev);
+extern struct device_node *of_node_get(struct device_node *node);
+extern void of_node_put(struct device_node *node);
+
+/* For scanning the flat device-tree at boot time */
+extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
+ const char *uname, int depth,
+ void *data),
+ void *data);
+extern void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+ unsigned long *size);
+extern int __init
+ of_flat_dt_is_compatible(unsigned long node, const char *name);
+extern unsigned long __init of_get_flat_dt_root(void);
+
+/* For updating the device tree at runtime */
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(struct device_node *);
+
+/* Other Prototypes */
+extern void finish_device_tree(void);
+extern void unflatten_device_tree(void);
+extern int early_uartlite_console(void);
+extern void early_init_devtree(void *);
+extern int machine_is_compatible(const char *compat);
+extern void print_properties(struct device_node *node);
+extern int prom_n_intr_cells(struct device_node *np);
+extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
+extern int prom_add_property(struct device_node *np, struct property *prop);
+extern int prom_remove_property(struct device_node *np, struct property *prop);
+extern int prom_update_property(struct device_node *np,
+ struct property *newprop,
+ struct property *oldprop);
+
+extern struct resource *request_OF_resource(struct device_node *node,
+ int index, const char *name_postfix);
+extern int release_OF_resource(struct device_node *node, int index);
+
+/*
+ * OF address retreival & translation
+ */
+
+/* Helper to read a big number; size is in cells (not bytes) */
+static inline u64 of_read_number(const u32 *cell, int size)
+{
+ u64 r = 0;
+ while (size--)
+ r = (r << 32) | *(cell++);
+ return r;
+}
+
+/* Like of_read_number, but we want an unsigned long result */
+#define of_read_ulong(cell, size) of_read_number(cell, size)
+
+/* Translate an OF address block into a CPU physical address
+ */
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
+
+/* Extract an address from a device, returns the region size and
+ * the address space flags too. The PCI version uses a BAR number
+ * instead of an absolute index
+ */
+extern const u32 *of_get_address(struct device_node *dev, int index,
+ u64 *size, unsigned int *flags);
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+ u64 *size, unsigned int *flags);
+
+/* Get an address as a resource. Note that if your address is
+ * a PIO address, the conversion will fail if the physical address
+ * can't be internally converted to an IO token with
+ * pci_address_to_pio(), that is because it's either called to early
+ * or it can't be matched to any host bridge IO space
+ */
+extern int of_address_to_resource(struct device_node *dev, int index,
+ struct resource *r);
+extern int of_pci_address_to_resource(struct device_node *dev, int bar,
+ struct resource *r);
+
+/* Parse the ibm,dma-window property of an OF node into the busno, phys and
+ * size parameters.
+ */
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
+ unsigned long *busno, unsigned long *phys, unsigned long *size);
+
+extern void kdump_move_device_tree(void);
+
+/* CPU OF node matching */
+struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
+
+/* Get the MAC address */
+extern const void *of_get_mac_address(struct device_node *np);
+
+/*
+ * OF interrupt mapping
+ */
+
+/* This structure is returned when an interrupt is mapped. The controller
+ * field needs to be put() after use
+ */
+
+#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */
+
+struct of_irq {
+ struct device_node *controller; /* Interrupt controller node */
+ u32 size; /* Specifier size */
+ u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
+};
+
+/**
+ * of_irq_map_init - Initialize the irq remapper
+ * @flags: flags defining workarounds to enable
+ *
+ * Some machines have bugs in the device-tree which require certain workarounds
+ * to be applied. Call this before any interrupt mapping attempts to enable
+ * those workarounds.
+ */
+#define OF_IMAP_OLDWORLD_MAC 0x00000001
+#define OF_IMAP_NO_PHANDLE 0x00000002
+
+extern void of_irq_map_init(unsigned int flags);
+
+/**
+ * of_irq_map_raw - Low level interrupt tree parsing
+ * @parent: the device interrupt parent
+ * @intspec: interrupt specifier ("interrupts" property of the device)
+ * @ointsize: size of the passed in interrupt specifier
+ * @addr: address specifier (start of "reg" property of the device)
+ * @out_irq: structure of_irq filled by this function
+ *
+ * Returns 0 on success and a negative number on error
+ *
+ * This function is a low-level interrupt tree walking function. It
+ * can be used to do a partial walk with synthetized reg and interrupts
+ * properties, for example when resolving PCI interrupts when no device
+ * node exist for the parent.
+ *
+ */
+
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+ u32 ointsize, const u32 *addr,
+ struct of_irq *out_irq);
+
+/**
+ * of_irq_map_one - Resolve an interrupt for a device
+ * @device: the device whose interrupt is to be resolved
+ * @index: index of the interrupt to resolve
+ * @out_irq: structure of_irq filled by this function
+ *
+ * This function resolves an interrupt, walking the tree, for a given
+ * device-tree node. It's the high level pendant to of_irq_map_raw().
+ * It also implements the workarounds for OldWolrd Macs.
+ */
+extern int of_irq_map_one(struct device_node *device, int index,
+ struct of_irq *out_irq);
+
+/**
+ * of_irq_map_pci - Resolve the interrupt for a PCI device
+ * @pdev: the device whose interrupt is to be resolved
+ * @out_irq: structure of_irq filled by this function
+ *
+ * This function resolves the PCI interrupt for a given PCI device. If a
+ * device-node exists for a given pci_dev, it will use normal OF tree
+ * walking. If not, it will implement standard swizzling and walk up the
+ * PCI tree until an device-node is found, at which point it will finish
+ * resolving using the OF tree walking.
+ */
+struct pci_dev;
+extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
+
+extern int of_irq_to_resource(struct device_node *dev, int index,
+ struct resource *r);
+
+/**
+ * of_iomap - Maps the memory mapped IO for a given device_node
+ * @device: the device whose io range will be mapped
+ * @index: index of the io range
+ *
+ * Returns a pointer to the mapped memory
+ */
+extern void __iomem *of_iomap(struct device_node *device, int index);
+
+/*
+ * NB: This is here while we transition from using asm/prom.h
+ * to linux/of.h
+ */
+#include <linux/of.h>
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h
new file mode 100644
index 0000000..f1f0348
--- /dev/null
+++ b/arch/microblaze/include/asm/ptrace.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PTRACE_H
+#define _ASM_MICROBLAZE_PTRACE_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+typedef unsigned long microblaze_reg_t;
+
+struct pt_regs {
+ microblaze_reg_t r0;
+ microblaze_reg_t r1;
+ microblaze_reg_t r2;
+ microblaze_reg_t r3;
+ microblaze_reg_t r4;
+ microblaze_reg_t r5;
+ microblaze_reg_t r6;
+ microblaze_reg_t r7;
+ microblaze_reg_t r8;
+ microblaze_reg_t r9;
+ microblaze_reg_t r10;
+ microblaze_reg_t r11;
+ microblaze_reg_t r12;
+ microblaze_reg_t r13;
+ microblaze_reg_t r14;
+ microblaze_reg_t r15;
+ microblaze_reg_t r16;
+ microblaze_reg_t r17;
+ microblaze_reg_t r18;
+ microblaze_reg_t r19;
+ microblaze_reg_t r20;
+ microblaze_reg_t r21;
+ microblaze_reg_t r22;
+ microblaze_reg_t r23;
+ microblaze_reg_t r24;
+ microblaze_reg_t r25;
+ microblaze_reg_t r26;
+ microblaze_reg_t r27;
+ microblaze_reg_t r28;
+ microblaze_reg_t r29;
+ microblaze_reg_t r30;
+ microblaze_reg_t r31;
+ microblaze_reg_t pc;
+ microblaze_reg_t msr;
+ microblaze_reg_t ear;
+ microblaze_reg_t esr;
+ microblaze_reg_t fsr;
+ int kernel_mode;
+};
+
+#define kernel_mode(regs) ((regs)->kernel_mode)
+#define user_mode(regs) (!kernel_mode(regs))
+
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+
+void show_regs(struct pt_regs *);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_MICROBLAZE_PTRACE_H */
diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h
new file mode 100644
index 0000000..66f1b30
--- /dev/null
+++ b/arch/microblaze/include/asm/pvr.h
@@ -0,0 +1,209 @@
+/*
+ * Support for the MicroBlaze PVR (Processor Version Register)
+ *
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ * Copyright (C) 2007 - 2009 PetaLogix
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_PVR_H
+#define _ASM_MICROBLAZE_PVR_H
+
+#define PVR_MSR_BIT 0x400
+
+struct pvr_s {
+ unsigned pvr[16];
+};
+
+/* The following taken from Xilinx's standalone BSP pvr.h */
+
+/* Basic PVR mask */
+#define PVR0_PVR_FULL_MASK 0x80000000
+#define PVR0_USE_BARREL_MASK 0x40000000
+#define PVR0_USE_DIV_MASK 0x20000000
+#define PVR0_USE_HW_MUL_MASK 0x10000000
+#define PVR0_USE_FPU_MASK 0x08000000
+#define PVR0_USE_EXC_MASK 0x04000000
+#define PVR0_USE_ICACHE_MASK 0x02000000
+#define PVR0_USE_DCACHE_MASK 0x01000000
+#define PVR0_USE_MMU 0x00800000 /* new */
+#define PVR0_VERSION_MASK 0x0000FF00
+#define PVR0_USER1_MASK 0x000000FF
+
+/* User 2 PVR mask */
+#define PVR1_USER2_MASK 0xFFFFFFFF
+
+/* Configuration PVR masks */
+#define PVR2_D_OPB_MASK 0x80000000
+#define PVR2_D_LMB_MASK 0x40000000
+#define PVR2_I_OPB_MASK 0x20000000
+#define PVR2_I_LMB_MASK 0x10000000
+#define PVR2_INTERRUPT_IS_EDGE_MASK 0x08000000
+#define PVR2_EDGE_IS_POSITIVE_MASK 0x04000000
+#define PVR2_D_PLB_MASK 0x02000000 /* new */
+#define PVR2_I_PLB_MASK 0x01000000 /* new */
+#define PVR2_INTERCONNECT 0x00800000 /* new */
+#define PVR2_USE_EXTEND_FSL 0x00080000 /* new */
+#define PVR2_USE_FSL_EXC 0x00040000 /* new */
+#define PVR2_USE_MSR_INSTR 0x00020000
+#define PVR2_USE_PCMP_INSTR 0x00010000
+#define PVR2_AREA_OPTIMISED 0x00008000
+#define PVR2_USE_BARREL_MASK 0x00004000
+#define PVR2_USE_DIV_MASK 0x00002000
+#define PVR2_USE_HW_MUL_MASK 0x00001000
+#define PVR2_USE_FPU_MASK 0x00000800
+#define PVR2_USE_MUL64_MASK 0x00000400
+#define PVR2_USE_FPU2_MASK 0x00000200 /* new */
+#define PVR2_USE_IPLBEXC 0x00000100
+#define PVR2_USE_DPLBEXC 0x00000080
+#define PVR2_OPCODE_0x0_ILL_MASK 0x00000040
+#define PVR2_UNALIGNED_EXC_MASK 0x00000020
+#define PVR2_ILL_OPCODE_EXC_MASK 0x00000010
+#define PVR2_IOPB_BUS_EXC_MASK 0x00000008
+#define PVR2_DOPB_BUS_EXC_MASK 0x00000004
+#define PVR2_DIV_ZERO_EXC_MASK 0x00000002
+#define PVR2_FPU_EXC_MASK 0x00000001
+
+/* Debug and exception PVR masks */
+#define PVR3_DEBUG_ENABLED_MASK 0x80000000
+#define PVR3_NUMBER_OF_PC_BRK_MASK 0x1E000000
+#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
+#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
+#define PVR3_FSL_LINKS_MASK 0x00000380
+
+/* ICache config PVR masks */
+#define PVR4_USE_ICACHE_MASK 0x80000000
+#define PVR4_ICACHE_ADDR_TAG_BITS_MASK 0x7C000000
+#define PVR4_ICACHE_USE_FSL_MASK 0x02000000
+#define PVR4_ICACHE_ALLOW_WR_MASK 0x01000000
+#define PVR4_ICACHE_LINE_LEN_MASK 0x00E00000
+#define PVR4_ICACHE_BYTE_SIZE_MASK 0x001F0000
+
+/* DCache config PVR masks */
+#define PVR5_USE_DCACHE_MASK 0x80000000
+#define PVR5_DCACHE_ADDR_TAG_BITS_MASK 0x7C000000
+#define PVR5_DCACHE_USE_FSL_MASK 0x02000000
+#define PVR5_DCACHE_ALLOW_WR_MASK 0x01000000
+#define PVR5_DCACHE_LINE_LEN_MASK 0x00E00000
+#define PVR5_DCACHE_BYTE_SIZE_MASK 0x001F0000
+
+/* ICache base address PVR mask */
+#define PVR6_ICACHE_BASEADDR_MASK 0xFFFFFFFF
+
+/* ICache high address PVR mask */
+#define PVR7_ICACHE_HIGHADDR_MASK 0xFFFFFFFF
+
+/* DCache base address PVR mask */
+#define PVR8_DCACHE_BASEADDR_MASK 0xFFFFFFFF
+
+/* DCache high address PVR mask */
+#define PVR9_DCACHE_HIGHADDR_MASK 0xFFFFFFFF
+
+/* Target family PVR mask */
+#define PVR10_TARGET_FAMILY_MASK 0xFF000000
+
+/* MMU descrtiption */
+#define PVR11_USE_MMU 0xC0000000
+#define PVR11_MMU_ITLB_SIZE 0x38000000
+#define PVR11_MMU_DTLB_SIZE 0x07000000
+#define PVR11_MMU_TLB_ACCESS 0x00C00000
+#define PVR11_MMU_ZONES 0x003C0000
+/* MSR Reset value PVR mask */
+#define PVR11_MSR_RESET_VALUE_MASK 0x000007FF
+
+
+/* PVR access macros */
+#define PVR_IS_FULL(pvr) (pvr.pvr[0] & PVR0_PVR_FULL_MASK)
+#define PVR_USE_BARREL(pvr) (pvr.pvr[0] & PVR0_USE_BARREL_MASK)
+#define PVR_USE_DIV(pvr) (pvr.pvr[0] & PVR0_USE_DIV_MASK)
+#define PVR_USE_HW_MUL(pvr) (pvr.pvr[0] & PVR0_USE_HW_MUL_MASK)
+#define PVR_USE_FPU(pvr) (pvr.pvr[0] & PVR0_USE_FPU_MASK)
+#define PVR_USE_FPU2(pvr) (pvr.pvr[2] & PVR2_USE_FPU2_MASK)
+#define PVR_USE_ICACHE(pvr) (pvr.pvr[0] & PVR0_USE_ICACHE_MASK)
+#define PVR_USE_DCACHE(pvr) (pvr.pvr[0] & PVR0_USE_DCACHE_MASK)
+#define PVR_VERSION(pvr) ((pvr.pvr[0] & PVR0_VERSION_MASK) >> 8)
+#define PVR_USER1(pvr) (pvr.pvr[0] & PVR0_USER1_MASK)
+#define PVR_USER2(pvr) (pvr.pvr[1] & PVR1_USER2_MASK)
+
+#define PVR_D_OPB(pvr) (pvr.pvr[2] & PVR2_D_OPB_MASK)
+#define PVR_D_LMB(pvr) (pvr.pvr[2] & PVR2_D_LMB_MASK)
+#define PVR_I_OPB(pvr) (pvr.pvr[2] & PVR2_I_OPB_MASK)
+#define PVR_I_LMB(pvr) (pvr.pvr[2] & PVR2_I_LMB_MASK)
+#define PVR_INTERRUPT_IS_EDGE(pvr) \
+ (pvr.pvr[2] & PVR2_INTERRUPT_IS_EDGE_MASK)
+#define PVR_EDGE_IS_POSITIVE(pvr) \
+ (pvr.pvr[2] & PVR2_EDGE_IS_POSITIVE_MASK)
+#define PVR_USE_MSR_INSTR(pvr) (pvr.pvr[2] & PVR2_USE_MSR_INSTR)
+#define PVR_USE_PCMP_INSTR(pvr) (pvr.pvr[2] & PVR2_USE_PCMP_INSTR)
+#define PVR_AREA_OPTIMISED(pvr) (pvr.pvr[2] & PVR2_AREA_OPTIMISED)
+#define PVR_USE_MUL64(pvr) (pvr.pvr[2] & PVR2_USE_MUL64_MASK)
+#define PVR_OPCODE_0x0_ILLEGAL(pvr) \
+ (pvr.pvr[2] & PVR2_OPCODE_0x0_ILL_MASK)
+#define PVR_UNALIGNED_EXCEPTION(pvr) \
+ (pvr.pvr[2] & PVR2_UNALIGNED_EXC_MASK)
+#define PVR_ILL_OPCODE_EXCEPTION(pvr) \
+ (pvr.pvr[2] & PVR2_ILL_OPCODE_EXC_MASK)
+#define PVR_IOPB_BUS_EXCEPTION(pvr) \
+ (pvr.pvr[2] & PVR2_IOPB_BUS_EXC_MASK)
+#define PVR_DOPB_BUS_EXCEPTION(pvr) \
+ (pvr.pvr[2] & PVR2_DOPB_BUS_EXC_MASK)
+#define PVR_DIV_ZERO_EXCEPTION(pvr) \
+ (pvr.pvr[2] & PVR2_DIV_ZERO_EXC_MASK)
+#define PVR_FPU_EXCEPTION(pvr) (pvr.pvr[2] & PVR2_FPU_EXC_MASK)
+#define PVR_FSL_EXCEPTION(pvr) (pvr.pvr[2] & PVR2_USE_EXTEND_FSL)
+
+#define PVR_DEBUG_ENABLED(pvr) (pvr.pvr[3] & PVR3_DEBUG_ENABLED_MASK)
+#define PVR_NUMBER_OF_PC_BRK(pvr) \
+ ((pvr.pvr[3] & PVR3_NUMBER_OF_PC_BRK_MASK) >> 25)
+#define PVR_NUMBER_OF_RD_ADDR_BRK(pvr) \
+ ((pvr.pvr[3] & PVR3_NUMBER_OF_RD_ADDR_BRK_MASK) >> 19)
+#define PVR_NUMBER_OF_WR_ADDR_BRK(pvr) \
+ ((pvr.pvr[3] & PVR3_NUMBER_OF_WR_ADDR_BRK_MASK) >> 13)
+#define PVR_FSL_LINKS(pvr) ((pvr.pvr[3] & PVR3_FSL_LINKS_MASK) >> 7)
+
+#define PVR_ICACHE_ADDR_TAG_BITS(pvr) \
+ ((pvr.pvr[4] & PVR4_ICACHE_ADDR_TAG_BITS_MASK) >> 26)
+#define PVR_ICACHE_USE_FSL(pvr) (pvr.pvr[4] & PVR4_ICACHE_USE_FSL_MASK)
+#define PVR_ICACHE_ALLOW_WR(pvr) (pvr.pvr[4] & PVR4_ICACHE_ALLOW_WR_MASK)
+#define PVR_ICACHE_LINE_LEN(pvr) \
+ (1 << ((pvr.pvr[4] & PVR4_ICACHE_LINE_LEN_MASK) >> 21))
+#define PVR_ICACHE_BYTE_SIZE(pvr) \
+ (1 << ((pvr.pvr[4] & PVR4_ICACHE_BYTE_SIZE_MASK) >> 16))
+
+#define PVR_DCACHE_ADDR_TAG_BITS(pvr) \
+ ((pvr.pvr[5] & PVR5_DCACHE_ADDR_TAG_BITS_MASK) >> 26)
+#define PVR_DCACHE_USE_FSL(pvr) (pvr.pvr[5] & PVR5_DCACHE_USE_FSL_MASK)
+#define PVR_DCACHE_ALLOW_WR(pvr) (pvr.pvr[5] & PVR5_DCACHE_ALLOW_WR_MASK)
+#define PVR_DCACHE_LINE_LEN(pvr) \
+ (1 << ((pvr.pvr[5] & PVR5_DCACHE_LINE_LEN_MASK) >> 21))
+#define PVR_DCACHE_BYTE_SIZE(pvr) \
+ (1 << ((pvr.pvr[5] & PVR5_DCACHE_BYTE_SIZE_MASK) >> 16))
+
+
+#define PVR_ICACHE_BASEADDR(pvr) (pvr.pvr[6] & PVR6_ICACHE_BASEADDR_MASK)
+#define PVR_ICACHE_HIGHADDR(pvr) (pvr.pvr[7] & PVR7_ICACHE_HIGHADDR_MASK)
+
+#define PVR_DCACHE_BASEADDR(pvr) (pvr.pvr[8] & PVR8_DCACHE_BASEADDR_MASK)
+#define PVR_DCACHE_HIGHADDR(pvr) (pvr.pvr[9] & PVR9_DCACHE_HIGHADDR_MASK)
+
+#define PVR_TARGET_FAMILY(pvr) ((pvr.pvr[10] & PVR10_TARGET_FAMILY_MASK) >> 24)
+
+#define PVR_MSR_RESET_VALUE(pvr) \
+ (pvr.pvr[11] & PVR11_MSR_RESET_VALUE_MASK)
+
+/* mmu */
+#define PVR_USE_MMU(pvr) ((pvr.pvr[11] & PVR11_USE_MMU) >> 30)
+#define PVR_MMU_ITLB_SIZE(pvr) (pvr.pvr[11] & PVR11_MMU_ITLB_SIZE)
+#define PVR_MMU_DTLB_SIZE(pvr) (pvr.pvr[11] & PVR11_MMU_DTLB_SIZE)
+#define PVR_MMU_TLB_ACCESS(pvr) (pvr.pvr[11] & PVR11_MMU_TLB_ACCESS)
+#define PVR_MMU_ZONES(pvr) (pvr.pvr[11] & PVR11_MMU_ZONES)
+
+
+int cpu_has_pvr(void);
+void get_pvr(struct pvr_s *pvr);
+
+#endif /* _ASM_MICROBLAZE_PVR_H */
diff --git a/arch/microblaze/include/asm/registers.h b/arch/microblaze/include/asm/registers.h
new file mode 100644
index 0000000..834142d
--- /dev/null
+++ b/arch/microblaze/include/asm/registers.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_REGISTERS_H
+#define _ASM_MICROBLAZE_REGISTERS_H
+
+#define MSR_BE (1<<0) /* 0x001 */
+#define MSR_IE (1<<1) /* 0x002 */
+#define MSR_C (1<<2) /* 0x004 */
+#define MSR_BIP (1<<3) /* 0x008 */
+#define MSR_FSL (1<<4) /* 0x010 */
+#define MSR_ICE (1<<5) /* 0x020 */
+#define MSR_DZ (1<<6) /* 0x040 */
+#define MSR_DCE (1<<7) /* 0x080 */
+#define MSR_EE (1<<8) /* 0x100 */
+#define MSR_EIP (1<<9) /* 0x200 */
+#define MSR_CC (1<<31)
+
+/* Floating Point Status Register (FSR) Bits */
+#define FSR_IO (1<<4) /* Invalid operation */
+#define FSR_DZ (1<<3) /* Divide-by-zero */
+#define FSR_OF (1<<2) /* Overflow */
+#define FSR_UF (1<<1) /* Underflow */
+#define FSR_DO (1<<0) /* Denormalized operand error */
+
+#endif /* _ASM_MICROBLAZE_REGISTERS_H */
diff --git a/arch/microblaze/include/asm/resource.h b/arch/microblaze/include/asm/resource.h
new file mode 100644
index 0000000..04bc4db
--- /dev/null
+++ b/arch/microblaze/include/asm/resource.h
@@ -0,0 +1 @@
+#include <asm-generic/resource.h>
diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h
new file mode 100644
index 0000000..08ff1d0
--- /dev/null
+++ b/arch/microblaze/include/asm/scatterlist.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SCATTERLIST_H
+#define _ASM_MICROBLAZE_SCATTERLIST_H
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+ unsigned long sg_magic;
+#endif
+ unsigned long page_link;
+ dma_addr_t dma_address;
+ unsigned int offset;
+ unsigned int length;
+};
+
+#define sg_dma_address(sg) ((sg)->dma_address)
+#define sg_dma_len(sg) ((sg)->length)
+
+#define ISA_DMA_THRESHOLD (~0UL)
+
+#endif /* _ASM_MICROBLAZE_SCATTERLIST_H */
diff --git a/arch/microblaze/include/asm/sections.h b/arch/microblaze/include/asm/sections.h
new file mode 100644
index 0000000..8434a43
--- /dev/null
+++ b/arch/microblaze/include/asm/sections.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SECTIONS_H
+#define _ASM_MICROBLAZE_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+# ifndef __ASSEMBLY__
+extern char _ssbss[], _esbss[];
+extern unsigned long __ivt_start[], __ivt_end[];
+
+# ifdef CONFIG_MTD_UCLINUX
+extern char *_ebss;
+# endif
+
+extern u32 _fdt_start[], _fdt_end[];
+
+# endif /* !__ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SECTIONS_H */
diff --git a/arch/microblaze/include/asm/segment.h b/arch/microblaze/include/asm/segment.h
new file mode 100644
index 0000000..7f5dcc5
--- /dev/null
+++ b/arch/microblaze/include/asm/segment.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2008 Michal Simek
+ * Copyright (C) 2008 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SEGMENT_H
+#define _ASM_MICROBLAZE_SEGMENT_H
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+ unsigned long seg;
+} mm_segment_t;
+
+/*
+ * On Microblaze the fs value is actually the top of the corresponding
+ * address space.
+ *
+ * The fs value determines whether argument validity checking should be
+ * performed or not. If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ *
+ * For non-MMU arch like Microblaze, KERNEL_DS and USER_DS is equal.
+ */
+# define KERNEL_DS ((mm_segment_t){0})
+# define USER_DS KERNEL_DS
+
+# define get_ds() (KERNEL_DS)
+# define get_fs() (current_thread_info()->addr_limit)
+# define set_fs(x) \
+ do { current_thread_info()->addr_limit = (x); } while (0)
+
+# define segment_eq(a, b) ((a).seg == (b).seg)
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SEGMENT_H */
diff --git a/arch/microblaze/include/asm/selfmod.h b/arch/microblaze/include/asm/selfmod.h
new file mode 100644
index 0000000..c42aff2
--- /dev/null
+++ b/arch/microblaze/include/asm/selfmod.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SELFMOD_H
+#define _ASM_MICROBLAZE_SELFMOD_H
+
+/*
+ * BARRIER_BASE_ADDR is constant address for selfmod function.
+ * do not change this value - selfmod function is in
+ * arch/microblaze/kernel/selfmod.c: selfmod_function()
+ *
+ * last 16 bits is used for storing register offset
+ */
+
+#define BARRIER_BASE_ADDR 0x1234ff00
+
+void selfmod_function(const int *arr_fce, const unsigned int base);
+
+#endif /* _ASM_MICROBLAZE_SELFMOD_H */
diff --git a/arch/microblaze/include/asm/sembuf.h b/arch/microblaze/include/asm/sembuf.h
new file mode 100644
index 0000000..b804ed7
--- /dev/null
+++ b/arch/microblaze/include/asm/sembuf.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SEMBUF_H
+#define _ASM_MICROBLAZE_SEMBUF_H
+
+/*
+ * The semid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct semid64_ds {
+ struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
+ __kernel_time_t sem_otime; /* last semop time */
+ unsigned long __unused1;
+ __kernel_time_t sem_ctime; /* last change time */
+ unsigned long __unused2;
+ unsigned long sem_nsems; /* no. of semaphores in array */
+ unsigned long __unused3;
+ unsigned long __unused4;
+};
+
+
+#endif /* _ASM_MICROBLAZE_SEMBUF_H */
diff --git a/arch/microblaze/include/asm/serial.h b/arch/microblaze/include/asm/serial.h
new file mode 100644
index 0000000..39bfc8c
--- /dev/null
+++ b/arch/microblaze/include/asm/serial.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SERIAL_H
+#define _ASM_MICROBLAZE_SERIAL_H
+
+# define BASE_BAUD (1843200 / 16)
+
+#endif /* _ASM_MICROBLAZE_SERIAL_H */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
new file mode 100644
index 0000000..9b98e8e
--- /dev/null
+++ b/arch/microblaze/include/asm/setup.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SETUP_H
+#define _ASM_MICROBLAZE_SETUP_H
+
+#define COMMAND_LINE_SIZE 256
+
+# ifndef __ASSEMBLY__
+
+# ifdef __KERNEL__
+extern unsigned int boot_cpuid; /* move to smp.h */
+
+extern char cmd_line[COMMAND_LINE_SIZE];
+# endif/* __KERNEL__ */
+
+void early_printk(const char *fmt, ...);
+
+int setup_early_printk(char *opt);
+void disable_early_printk(void);
+
+void heartbeat(void);
+void setup_heartbeat(void);
+
+unsigned long long sched_clock(void);
+
+void time_init(void);
+void init_IRQ(void);
+void machine_early_init(const char *cmdline, unsigned int ram,
+ unsigned int fdt);
+
+void machine_restart(char *cmd);
+void machine_shutdown(void);
+void machine_halt(void);
+void machine_power_off(void);
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SETUP_H */
diff --git a/arch/microblaze/include/asm/shmbuf.h b/arch/microblaze/include/asm/shmbuf.h
new file mode 100644
index 0000000..f829c58
--- /dev/null
+++ b/arch/microblaze/include/asm/shmbuf.h
@@ -0,0 +1,42 @@
+#ifndef _ASM_MICROBLAZE_SHMBUF_H
+#define _ASM_MICROBLAZE_SHMBUF_H
+
+/*
+ * The shmid64_ds structure for microblaze architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct shmid64_ds {
+ struct ipc64_perm shm_perm; /* operation perms */
+ size_t shm_segsz; /* size of segment (bytes) */
+ __kernel_time_t shm_atime; /* last attach time */
+ unsigned long __unused1;
+ __kernel_time_t shm_dtime; /* last detach time */
+ unsigned long __unused2;
+ __kernel_time_t shm_ctime; /* last change time */
+ unsigned long __unused3;
+ __kernel_pid_t shm_cpid; /* pid of creator */
+ __kernel_pid_t shm_lpid; /* pid of last operator */
+ unsigned long shm_nattch; /* no. of current attaches */
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+struct shminfo64 {
+ unsigned long shmmax;
+ unsigned long shmmin;
+ unsigned long shmmni;
+ unsigned long shmseg;
+ unsigned long shmall;
+ unsigned long __unused1;
+ unsigned long __unused2;
+ unsigned long __unused3;
+ unsigned long __unused4;
+};
+
+#endif /* _ASM_MICROBLAZE_SHMBUF_H */
diff --git a/arch/microblaze/include/asm/shmparam.h b/arch/microblaze/include/asm/shmparam.h
new file mode 100644
index 0000000..9f5fc2b
--- /dev/null
+++ b/arch/microblaze/include/asm/shmparam.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_SHMPARAM_H
+#define _ASM_MICROBLAZE_SHMPARAM_H
+
+#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
+
+#endif /* _ASM_MICROBLAZE_SHMPARAM_H */
diff --git a/arch/microblaze/include/asm/sigcontext.h b/arch/microblaze/include/asm/sigcontext.h
new file mode 100644
index 0000000..55873c8
--- /dev/null
+++ b/arch/microblaze/include/asm/sigcontext.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGCONTEXT_H
+#define _ASM_MICROBLAZE_SIGCONTEXT_H
+
+/* FIXME should be linux/ptrace.h */
+#include <asm/ptrace.h>
+
+struct sigcontext {
+ struct pt_regs regs;
+ unsigned long oldmask;
+};
+
+#endif /* _ASM_MICROBLAZE_SIGCONTEXT_H */
diff --git a/arch/microblaze/include/asm/siginfo.h b/arch/microblaze/include/asm/siginfo.h
new file mode 100644
index 0000000..f162911
--- /dev/null
+++ b/arch/microblaze/include/asm/siginfo.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGINFO_H
+#define _ASM_MICROBLAZE_SIGINFO_H
+
+#include <linux/types.h>
+#include <asm-generic/siginfo.h>
+
+#endif /* _ASM_MICROBLAZE_SIGINFO_H */
diff --git a/arch/microblaze/include/asm/signal.h b/arch/microblaze/include/asm/signal.h
new file mode 100644
index 0000000..9676fad
--- /dev/null
+++ b/arch/microblaze/include/asm/signal.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ * Tetsuya OHKAWA <tetsuya@atmark-techno.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SIGNAL_H
+#define _ASM_MICROBLAZE_SIGNAL_H
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+/*
+#define SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#define SIGRTMAX _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP 0x00000001
+#define SA_NOCLDWAIT 0x00000002
+#define SA_SIGINFO 0x00000004
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+
+#define SA_NOMASK SA_NODEFER
+#define SA_ONESHOT SA_RESETHAND
+
+#define SA_RESTORER 0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK 1
+#define SS_DISABLE 2
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
+# ifndef __ASSEMBLY__
+# include <linux/types.h>
+# include <asm-generic/signal.h>
+
+/* Avoid too many header ordering problems. */
+struct siginfo;
+
+# ifdef __KERNEL__
+/*
+ * Most things should be clean enough to redefine this at will, if care
+ * is taken to make libc match.
+ */
+# define _NSIG 64
+# define _NSIG_BPW 32
+# define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+struct old_sigaction {
+ __sighandler_t sa_handler;
+ old_sigset_t sa_mask;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+};
+
+struct sigaction {
+ __sighandler_t sa_handler;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+
+struct k_sigaction {
+ struct sigaction sa;
+};
+
+# include <asm/sigcontext.h>
+# undef __HAVE_ARCH_SIG_BITOPS
+
+# define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+# else /* !__KERNEL__ */
+
+/* Here we must cater to libcs that poke about in kernel headers. */
+
+# define NSIG 32
+typedef unsigned long sigset_t;
+
+struct sigaction {
+ union {
+ __sighandler_t _sa_handler;
+ void (*_sa_sigaction)(int, struct siginfo *, void *);
+ } _u;
+ sigset_t sa_mask;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+};
+
+# define sa_handler _u._sa_handler
+# define sa_sigaction _u._sa_sigaction
+
+# endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+ void *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+} stack_t;
+
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_SIGNAL_H */
diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h
new file mode 100644
index 0000000..8259368
--- /dev/null
+++ b/arch/microblaze/include/asm/socket.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SOCKET_H
+#define _ASM_MICROBLAZE_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockoptions(2) */
+#define SOL_SOCKET 1
+
+#define SO_DEBUG 1
+#define SO_REUSEADDR 2
+#define SO_TYPE 3
+#define SO_ERROR 4
+#define SO_DONTROUTE 5
+#define SO_BROADCAST 6
+#define SO_SNDBUF 7
+#define SO_RCVBUF 8
+#define SO_SNDBUFFORCE 32
+#define SO_RCVBUFFORCE 33
+#define SO_KEEPALIVE 9
+#define SO_OOBINLINE 10
+#define SO_NO_CHECK 11
+#define SO_PRIORITY 12
+#define SO_LINGER 13
+#define SO_BSDCOMPAT 14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED 16
+#define SO_PEERCRED 17
+#define SO_RCVLOWAT 18
+#define SO_SNDLOWAT 19
+#define SO_RCVTIMEO 20
+#define SO_SNDTIMEO 21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION 22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
+#define SO_SECURITY_ENCRYPTION_NETWORK 24
+
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER 26
+#define SO_DETACH_FILTER 27
+
+#define SO_PEERNAME 28
+#define SO_TIMESTAMP 29
+#define SCM_TIMESTAMP SO_TIMESTAMP
+
+#define SO_ACCEPTCONN 30
+
+#define SO_PEERSEC 31
+#define SO_PASSSEC 34
+
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
+
+#define SO_MARK 36
+
+#define SO_TIMESTAMPING 37
+#define SCM_TIMESTAMPING SO_TIMESTAMPING
+
+#endif /* _ASM_MICROBLAZE_SOCKET_H */
diff --git a/arch/microblaze/include/asm/sockios.h b/arch/microblaze/include/asm/sockios.h
new file mode 100644
index 0000000..9fff57a
--- /dev/null
+++ b/arch/microblaze/include/asm/sockios.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SOCKIOS_H
+#define _ASM_MICROBLAZE_SOCKIOS_H
+
+#include <linux/ioctl.h>
+
+/* Socket-level I/O control calls. */
+#define FIOSETOWN 0x8901
+#define SIOCSPGRP 0x8902
+#define FIOGETOWN 0x8903
+#define SIOCGPGRP 0x8904
+#define SIOCATMARK 0x8905
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
+
+#endif /* _ASM_MICROBLAZE_SOCKIOS_H */
diff --git a/arch/microblaze/include/asm/stat.h b/arch/microblaze/include/asm/stat.h
new file mode 100644
index 0000000..5f18b8a
--- /dev/null
+++ b/arch/microblaze/include/asm/stat.h
@@ -0,0 +1,73 @@
+/*
+ * Microblaze stat structure
+ *
+ * Copyright (C) 2001,02,03 NEC Electronics Corporation
+ * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#ifndef _ASM_MICROBLAZE_STAT_H
+#define _ASM_MICROBLAZE_STAT_H
+
+#include <linux/posix_types.h>
+
+struct stat {
+ unsigned int st_dev;
+ unsigned long st_ino;
+ unsigned int st_mode;
+ unsigned int st_nlink;
+ unsigned int st_uid;
+ unsigned int st_gid;
+ unsigned int st_rdev;
+ unsigned long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks;
+ unsigned long st_atime;
+ unsigned long __unused1; /* unsigned long st_atime_nsec */
+ unsigned long st_mtime;
+ unsigned long __unused2; /* unsigned long st_mtime_nsec */
+ unsigned long st_ctime;
+ unsigned long __unused3; /* unsigned long st_ctime_nsec */
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+struct stat64 {
+ unsigned long long st_dev;
+ unsigned long __unused1;
+
+ unsigned long long st_ino;
+
+ unsigned int st_mode;
+ unsigned int st_nlink;
+
+ unsigned int st_uid;
+ unsigned int st_gid;
+
+ unsigned long long st_rdev;
+ unsigned long __unused3;
+
+ long long st_size;
+ unsigned long st_blksize;
+
+ unsigned long st_blocks; /* No. of 512-byte blocks allocated */
+ unsigned long __unused4; /* future possible st_blocks high bits */
+
+ unsigned long st_atime;
+ unsigned long st_atime_nsec;
+
+ unsigned long st_mtime;
+ unsigned long st_mtime_nsec;
+
+ unsigned long st_ctime;
+ unsigned long st_ctime_nsec;
+
+ unsigned long __unused8;
+};
+
+#endif /* _ASM_MICROBLAZE_STAT_H */
diff --git a/arch/microblaze/include/asm/statfs.h b/arch/microblaze/include/asm/statfs.h
new file mode 100644
index 0000000..0b91fe1
--- /dev/null
+++ b/arch/microblaze/include/asm/statfs.h
@@ -0,0 +1 @@
+#include <asm-generic/statfs.h>
diff --git a/arch/microblaze/include/asm/string.h b/arch/microblaze/include/asm/string.h
new file mode 100644
index 0000000..f7728c9
--- /dev/null
+++ b/arch/microblaze/include/asm/string.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_STRING_H
+#define _ASM_MICROBLAZE_STRING_H
+
+#ifndef __KERNEL__
+
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMMOVE
+
+extern void *memset(void *, int, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t);
+extern void *memmove(void *, const void *, __kernel_size_t);
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_STRING_H */
diff --git a/arch/microblaze/include/asm/swab.h b/arch/microblaze/include/asm/swab.h
new file mode 100644
index 0000000..b375d7b
--- /dev/null
+++ b/arch/microblaze/include/asm/swab.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_MICROBLAZE_SWAB_H
+#define _ASM_MICROBLAZE_SWAB_H
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#define __SWAB_64_THRU_32__
+#endif
+
+#endif /* _ASM_MICROBLAZE_SWAB_H */
diff --git a/arch/microblaze/include/asm/syscalls.h b/arch/microblaze/include/asm/syscalls.h
new file mode 100644
index 0000000..9cb4ff0
--- /dev/null
+++ b/arch/microblaze/include/asm/syscalls.h
@@ -0,0 +1,45 @@
+#ifndef __ASM_MICROBLAZE_SYSCALLS_H
+#define __ASM_MICROBLAZE_SYSCALLS_H
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+#include <linux/signal.h>
+
+/* FIXME will be removed */
+asmlinkage int sys_ipc(uint call, int first, int second,
+ int third, void *ptr, long fifth);
+
+struct pt_regs;
+asmlinkage int sys_vfork(struct pt_regs *regs);
+asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
+asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
+ char __user *__user *envp, struct pt_regs *regs);
+
+asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff);
+
+asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, off_t offset);
+
+/* from signal.c */
+asmlinkage int sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs);
+
+asmlinkage int sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
+ struct pt_regs *regs);
+
+asmlinkage int sys_sigaction(int sig, const struct old_sigaction *act,
+ struct old_sigaction *oact);
+
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+ struct pt_regs *regs);
+
+asmlinkage int sys_sigreturn(struct pt_regs *regs);
+
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_MICROBLAZE_SYSCALLS_H */
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
new file mode 100644
index 0000000..c4e3088
--- /dev/null
+++ b/arch/microblaze/include/asm/system.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SYSTEM_H
+#define _ASM_MICROBLAZE_SYSTEM_H
+
+#include <asm/registers.h>
+#include <asm/setup.h>
+#include <asm/irqflags.h>
+
+struct task_struct;
+struct thread_info;
+
+extern struct task_struct *_switch_to(struct thread_info *prev,
+ struct thread_info *next);
+
+#define switch_to(prev, next, last) \
+ do { \
+ (last) = _switch_to(task_thread_info(prev), \
+ task_thread_info(next)); \
+ } while (0)
+
+#define smp_read_barrier_depends() do {} while (0)
+#define read_barrier_depends() do {} while (0)
+
+#define nop() asm volatile ("nop")
+#define mb() barrier()
+#define rmb() mb()
+#define wmb() mb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define set_wmb(var, value) do { var = value; wmb(); } while (0)
+
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+
+void show_trace(struct task_struct *task, unsigned long *stack);
+void __bad_xchg(volatile void *ptr, int size);
+
+static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
+ int size)
+{
+ unsigned long ret;
+ unsigned long flags;
+
+ switch (size) {
+ case 1:
+ local_irq_save(flags);
+ ret = *(volatile unsigned char *)ptr;
+ *(volatile unsigned char *)ptr = x;
+ local_irq_restore(flags);
+ break;
+
+ case 4:
+ local_irq_save(flags);
+ ret = *(volatile unsigned long *)ptr;
+ *(volatile unsigned long *)ptr = x;
+ local_irq_restore(flags);
+ break;
+ default:
+ __bad_xchg(ptr, size), ret = 0;
+ break;
+ }
+
+ return ret;
+}
+
+void disable_hlt(void);
+void enable_hlt(void);
+void default_idle(void);
+
+#define xchg(ptr, x) \
+ ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+
+void free_init_pages(char *what, unsigned long begin, unsigned long end);
+void free_initmem(void);
+extern char *klimit;
+extern void ret_from_fork(void);
+
+#ifdef CONFIG_DEBUG_FS
+extern struct dentry *of_debugfs_root;
+#endif
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_MICROBLAZE_SYSTEM_H */
diff --git a/arch/microblaze/include/asm/termbits.h b/arch/microblaze/include/asm/termbits.h
new file mode 100644
index 0000000..a1b64bc
--- /dev/null
+++ b/arch/microblaze/include/asm/termbits.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TERMBITS_H
+#define _ASM_MICROBLAZE_TERMBITS_H
+
+#include <linux/posix_types.h>
+
+typedef unsigned char cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+#define NCCS 19
+struct termios {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+};
+
+struct ktermios {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
+/* c_cc characters */
+
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+
+#define IGNBRK 0000001
+#define BRKINT 0000002
+#define IGNPAR 0000004
+#define PARMRK 0000010
+#define INPCK 0000020
+#define ISTRIP 0000040
+#define INLCR 0000100
+#define IGNCR 0000200
+#define ICRNL 0000400
+#define IUCLC 0001000
+#define IXON 0002000
+#define IXANY 0004000
+#define IXOFF 0010000
+#define IMAXBEL 0020000
+#define IUTF8 0040000
+
+/* c_oflag bits */
+
+#define OPOST 0000001
+#define OLCUC 0000002
+#define ONLCR 0000004
+#define OCRNL 0000010
+#define ONOCR 0000020
+#define ONLRET 0000040
+#define OFILL 0000100
+#define OFDEL 0000200
+#define NLDLY 0000400
+#define NL0 0000000
+#define NL1 0000400
+#define CRDLY 0003000
+#define CR0 0000000
+#define CR1 0001000
+#define CR2 0002000
+#define CR3 0003000
+#define TABDLY 0014000
+#define TAB0 0000000
+#define TAB1 0004000
+#define TAB2 0010000
+#define TAB3 0014000
+#define XTABS 0014000
+#define BSDLY 0020000
+#define BS0 0000000
+#define BS1 0020000
+#define VTDLY 0040000
+#define VT0 0000000
+#define VT1 0040000
+#define FFDLY 0100000
+#define FF0 0000000
+#define FF1 0100000
+
+/* c_cflag bit meaning */
+
+#define CBAUD 0010017
+#define B0 0000000 /* hang up */
+#define B50 0000001
+#define B75 0000002
+#define B110 0000003
+#define B134 0000004
+#define B150 0000005
+#define B200 0000006
+#define B300 0000007
+#define B600 0000010
+#define B1200 0000011
+#define B1800 0000012
+#define B2400 0000013
+#define B4800 0000014
+#define B9600 0000015
+#define B19200 0000016
+#define B38400 0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE 0000060
+#define CS5 0000000
+#define CS6 0000020
+#define CS7 0000040
+#define CS8 0000060
+#define CSTOPB 0000100
+#define CREAD 0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL 0002000
+#define CLOCAL 0004000
+#define CBAUDEX 0010000
+#define B57600 0010001
+#define B115200 0010002
+#define B230400 0010003
+#define B460800 0010004
+#define B500000 0010005
+#define B576000 0010006
+#define B921600 0010007
+#define BOTHER 0010000
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+#define CIBAUD 002003600000 /* input baud rate (not used) */
+#define CMSPAR 010000000000 /* mark or space (stick) parity */
+#define CRTSCTS 020000000000 /* flow control */
+
+#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
+
+/* c_lflag bits */
+
+#define ISIG 0000001
+#define ICANON 0000002
+#define XCASE 0000004
+#define ECHO 0000010
+#define ECHOE 0000020
+#define ECHOK 0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+
+/* tcflow() and TCXONC use these */
+
+#define TCOOFF 0
+#define TCOON 1
+#define TCIOFF 2
+#define TCION 3
+
+/* tcflush() and TCFLSH use these */
+
+#define TCIFLUSH 0
+#define TCOFLUSH 1
+#define TCIOFLUSH 2
+
+/* tcsetattr uses these */
+
+#define TCSANOW 0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
+#endif /* _ASM_MICROBLAZE_TERMBITS_H */
diff --git a/arch/microblaze/include/asm/termios.h b/arch/microblaze/include/asm/termios.h
new file mode 100644
index 0000000..102d772
--- /dev/null
+++ b/arch/microblaze/include/asm/termios.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TERMIOS_H
+#define _ASM_MICROBLAZE_TERMIOS_H
+
+#include <linux/string.h>
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+ unsigned short ws_row;
+ unsigned short ws_col;
+ unsigned short ws_xpixel;
+ unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+ unsigned short c_iflag; /* input mode flags */
+ unsigned short c_oflag; /* output mode flags */
+ unsigned short c_cflag; /* control mode flags */
+ unsigned short c_lflag; /* local mode flags */
+ unsigned char c_line; /* line discipline */
+ unsigned char c_cc[NCC]; /* control characters */
+};
+
+#ifdef __KERNEL__
+/* intr=^C quit=^| erase=del kill=^U
+ eof=^D vtime=\0 vmin=\1 sxtc=\0
+ start=^Q stop=^S susp=^Z eol=\0
+ reprint=^R discard=^U werase=^W lnext=^V
+ eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#endif
+
+/* Modem lines */
+
+#define TIOCM_LE 0x001
+#define TIOCM_DTR 0x002
+#define TIOCM_RTS 0x004
+#define TIOCM_ST 0x008
+#define TIOCM_SR 0x010
+#define TIOCM_CTS 0x020
+#define TIOCM_CAR 0x040
+#define TIOCM_RNG 0x080
+#define TIOCM_DSR 0x100
+#define TIOCM_CD TIOCM_CAR
+#define TIOCM_RI TIOCM_RNG
+#define TIOCM_OUT1 0x2000
+#define TIOCM_OUT2 0x4000
+#define TIOCM_LOOP 0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+/* Line disciplines */
+
+#define N_TTY 0
+#define N_SLIP 1
+#define N_MOUSE 2
+#define N_PPP 3
+#define N_STRIP 4
+#define N_AX25 5
+#define N_X25 6 /* X.25 async */
+#define N_6PACK 7
+#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964 9 /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA 11 /* Linux IR - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards
+ about SMS messages */
+#define N_HDLC 13 /* synchronous HDLC */
+#define N_SYNC_PPP 14
+#define N_HCI 15 /* Bluetooth HCI UART */
+
+#ifdef __KERNEL__
+
+#include <asm-generic/termios.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_TERMIOS_H */
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
new file mode 100644
index 0000000..4c3943e
--- /dev/null
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_THREAD_INFO_H
+#define _ASM_MICROBLAZE_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+/* we have 8k stack */
+#define THREAD_SHIFT 13
+#define THREAD_SIZE (1 << THREAD_SHIFT)
+#define THREAD_SIZE_ORDER 1
+
+#ifndef __ASSEMBLY__
+# include <linux/types.h>
+# include <asm/processor.h>
+# include <asm/segment.h>
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants
+ * must also be changed
+ */
+
+struct cpu_context {
+ __u32 r1; /* stack pointer */
+ __u32 r2;
+ /* dedicated registers */
+ __u32 r13;
+ __u32 r14;
+ __u32 r15;
+ __u32 r16;
+ __u32 r17;
+ __u32 r18;
+ /* non-volatile registers */
+ __u32 r19;
+ __u32 r20;
+ __u32 r21;
+ __u32 r22;
+ __u32 r23;
+ __u32 r24;
+ __u32 r25;
+ __u32 r26;
+ __u32 r27;
+ __u32 r28;
+ __u32 r29;
+ __u32 r30;
+ /* r31 is used as current task pointer */
+ /* special purpose registers */
+ __u32 msr;
+ __u32 ear;
+ __u32 esr;
+ __u32 fsr;
+};
+
+struct thread_info {
+ struct task_struct *task; /* main task structure */
+ struct exec_domain *exec_domain; /* execution domain */
+ unsigned long flags; /* low level flags */
+ unsigned long status; /* thread-synchronous flags */
+ __u32 cpu; /* current CPU */
+ __s32 preempt_count; /* 0 => preemptable,< 0 => BUG*/
+ mm_segment_t addr_limit; /* thread address space */
+ struct restart_block restart_block;
+
+ struct cpu_context cpu_context;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .exec_domain = &default_exec_domain, \
+ .flags = 0, \
+ .cpu = 0, \
+ .preempt_count = 1, \
+ .addr_limit = KERNEL_DS, \
+ .restart_block = { \
+ .fn = do_no_restart_syscall, \
+ }, \
+}
+
+#define init_thread_info (init_thread_union.thread_info)
+#define init_stack (init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+ register unsigned long sp asm("r1");
+
+ return (struct thread_info *)(sp & ~(THREAD_SIZE-1));
+}
+
+/* thread information allocation */
+#endif /* __ASSEMBLY__ */
+
+#define PREEMPT_ACTIVE 0x10000000
+
+/*
+ * thread information flags
+ * - these are process state flags that various assembly files may
+ * need to access
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
+#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
+#define TIF_SIGPENDING 2 /* signal pending */
+#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
+/* restore singlestep on return to user mode */
+#define TIF_SINGLESTEP 4
+#define TIF_IRET 5 /* return with iret */
+#define TIF_MEMDIE 6
+#define TIF_FREEZE 14 /* Freezing for suspend */
+
+/* FIXME change in entry.S */
+#define TIF_KERNEL_TRACE 8 /* kernel trace active */
+
+/* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_POLLING_NRFLAG 16
+
+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
+#define _TIF_IRET (1<<TIF_IRET)
+#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
+#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
+
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK 0x0000FFFE
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK 0x0000FFFF
+
+/*
+ * Thread-synchronous status.
+ *
+ * This is different from the flags in that nobody else
+ * ever touches our thread-synchronous status, so we don't
+ * have to worry about atomic accesses.
+ */
+/* FPU was used by this task this quantum (SMP) */
+#define TS_USEDFPU 0x0001
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_THREAD_INFO_H */
diff --git a/arch/microblaze/include/asm/timex.h b/arch/microblaze/include/asm/timex.h
new file mode 100644
index 0000000..678525d
--- /dev/null
+++ b/arch/microblaze/include/asm/timex.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TIMEX_H
+#define _ASM_MICROBLAZE_TIMEX_H
+
+#define CLOCK_TICK_RATE 1000 /* Timer input freq. */
+
+typedef unsigned long cycles_t;
+
+#define get_cycles() (0)
+
+#endif /* _ASM_TIMEX_H */
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
new file mode 100644
index 0000000..d1dfe37
--- /dev/null
+++ b/arch/microblaze/include/asm/tlb.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLB_H
+#define _ASM_MICROBLAZE_TLB_H
+
+#define tlb_flush(tlb) do {} while (0)
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_MICROBLAZE_TLB_H */
diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h
new file mode 100644
index 0000000..d7fe762
--- /dev/null
+++ b/arch/microblaze/include/asm/tlbflush.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
+#define _ASM_MICROBLAZE_TLBFLUSH_H
+
+#define flush_tlb() BUG()
+#define flush_tlb_all() BUG()
+#define flush_tlb_mm(mm) BUG()
+#define flush_tlb_page(vma, addr) BUG()
+#define flush_tlb_range(mm, start, end) BUG()
+#define flush_tlb_pgtables(mm, start, end) BUG()
+#define flush_tlb_kernel_range(start, end) BUG()
+
+#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
diff --git a/arch/microblaze/include/asm/topology.h b/arch/microblaze/include/asm/topology.h
new file mode 100644
index 0000000..96bcea5
--- /dev/null
+++ b/arch/microblaze/include/asm/topology.h
@@ -0,0 +1,11 @@
+#include <asm-generic/topology.h>
+
+#ifndef _ASM_MICROBLAZE_TOPOLOGY_H
+#define _ASM_MICROBLAZE_TOPOLOGY_H
+
+struct device_node;
+static inline int of_node_to_nid(struct device_node *device)
+{
+ return 0;
+}
+#endif /* _ASM_MICROBLAZE_TOPOLOGY_H */
diff --git a/arch/microblaze/include/asm/types.h b/arch/microblaze/include/asm/types.h
new file mode 100644
index 0000000..bebc0183
--- /dev/null
+++ b/arch/microblaze/include/asm/types.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_TYPES_H
+#define _ASM_MICROBLAZE_TYPES_H
+
+/*
+ * This file is never included by application software unless
+ * explicitly requested (e.g., via linux/types.h) in which case the
+ * application is Linux specific so (user-) name space pollution is
+ * not a major issue. However, for interoperability, libraries still
+ * need to be careful to avoid a name clashes.
+ */
+
+#include <asm-generic/int-ll64.h>
+
+# ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+# ifdef __KERNEL__
+# define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide. */
+
+typedef u32 dma_addr_t;
+
+# endif/* __KERNEL__ */
+# endif /* __ASSEMBLY__ */
+#endif /* _ASM_MICROBLAZE_TYPES_H */
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
new file mode 100644
index 0000000..5a3ffc3
--- /dev/null
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_UACCESS_H
+#define _ASM_MICROBLAZE_UACCESS_H
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/sched.h> /* RLIMIT_FSIZE */
+#include <linux/mm.h>
+
+#include <asm/mmu.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/segment.h>
+#include <linux/string.h>
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+extern int ___range_ok(unsigned long addr, unsigned long size);
+
+#define __range_ok(addr, size) \
+ ___range_ok((unsigned long)(addr), (unsigned long)(size))
+
+#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
+#define __access_ok(add, size) (__range_ok((addr), (size)) == 0)
+
+extern inline int bad_user_access_length(void)
+{
+ return 0;
+}
+/* FIXME this is function for optimalization -> memcpy */
+#define __get_user(var, ptr) \
+ ({ \
+ int __gu_err = 0; \
+ switch (sizeof(*(ptr))) { \
+ case 1: \
+ case 2: \
+ case 4: \
+ (var) = *(ptr); \
+ break; \
+ case 8: \
+ memcpy((void *) &(var), (ptr), 8); \
+ break; \
+ default: \
+ (var) = 0; \
+ __gu_err = __get_user_bad(); \
+ break; \
+ } \
+ __gu_err; \
+ })
+
+#define __get_user_bad() (bad_user_access_length(), (-EFAULT))
+
+#define __put_user(var, ptr) \
+ ({ \
+ int __pu_err = 0; \
+ switch (sizeof(*(ptr))) { \
+ case 1: \
+ case 2: \
+ case 4: \
+ *(ptr) = (var); \
+ break; \
+ case 8: { \
+ typeof(*(ptr)) __pu_val = var; \
+ memcpy(ptr, &__pu_val, sizeof(__pu_val));\
+ } \
+ break; \
+ default: \
+ __pu_err = __put_user_bad(); \
+ break; \
+ } \
+ __pu_err; \
+ })
+
+#define __put_user_bad() (bad_user_access_length(), (-EFAULT))
+
+#define put_user(x, ptr) __put_user(x, ptr)
+#define get_user(x, ptr) __get_user(x, ptr)
+
+#define copy_to_user(to, from, n) (memcpy(to, from, n), 0)
+#define copy_from_user(to, from, n) (memcpy(to, from, n), 0)
+
+#define __copy_to_user(to, from, n) (copy_to_user(to, from, n))
+#define __copy_from_user(to, from, n) (copy_from_user(to, from, n))
+#define __copy_to_user_inatomic(to, from, n) (__copy_to_user(to, from, n))
+#define __copy_from_user_inatomic(to, from, n) (__copy_from_user(to, from, n))
+
+#define __clear_user(addr, n) (memset((void *)addr, 0, n), 0)
+
+static inline unsigned long clear_user(void *addr, unsigned long size)
+{
+ if (access_ok(VERIFY_WRITE, addr, size))
+ size = __clear_user(addr, size);
+ return size;
+}
+
+/* Returns 0 if exception not found and fixup otherwise. */
+extern unsigned long search_exception_table(unsigned long);
+
+
+extern long strncpy_from_user(char *dst, const char __user *src, long count);
+extern long strnlen_user(const char __user *src, long count);
+extern long __strncpy_from_user(char *dst, const char __user *src, long count);
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue. No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+struct exception_table_entry {
+ unsigned long insn, fixup;
+};
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_MICROBLAZE_UACCESS_H */
diff --git a/arch/microblaze/include/asm/ucontext.h b/arch/microblaze/include/asm/ucontext.h
new file mode 100644
index 0000000..11f6bb3
--- /dev/null
+++ b/arch/microblaze/include/asm/ucontext.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_UCONTEXT_H
+#define _ASM_MICROBLAZE_UCONTEXT_H
+
+#include <asm/sigcontext.h>
+
+struct ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask; /* mask last for extensibility */
+};
+
+#endif /* _ASM_MICROBLAZE_UCONTEXT_H */
diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
new file mode 100644
index 0000000..9d66b64
--- /dev/null
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_UNALIGNED_H
+#define _ASM_MICROBLAZE_UNALIGNED_H
+
+# ifdef __KERNEL__
+
+# include <linux/unaligned/access_ok.h>
+# include <linux/unaligned/generic.h>
+
+# define get_unaligned __get_unaligned_be
+# define put_unaligned __put_unaligned_be
+
+# endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_UNALIGNED_H */
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
new file mode 100644
index 0000000..d9d3903
--- /dev/null
+++ b/arch/microblaze/include/asm/unistd.h
@@ -0,0 +1,421 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_UNISTD_H
+#define _ASM_MICROBLAZE_UNISTD_H
+
+#define __NR_restart_syscall 0 /* ok */
+#define __NR_exit 1 /* ok */
+#define __NR_fork 2 /* not for no MMU - weird */
+#define __NR_read 3 /* ok */
+#define __NR_write 4 /* ok */
+#define __NR_open 5 /* openat */
+#define __NR_close 6 /* ok */
+#define __NR_waitpid 7 /* waitid */
+#define __NR_creat 8 /* openat */
+#define __NR_link 9 /* linkat */
+#define __NR_unlink 10 /* unlinkat */
+#define __NR_execve 11 /* ok */
+#define __NR_chdir 12 /* ok */
+#define __NR_time 13 /* obsolete -> sys_gettimeofday */
+#define __NR_mknod 14 /* mknodat */
+#define __NR_chmod 15 /* fchmodat */
+#define __NR_lchown 16 /* ok */
+#define __NR_break 17 /* don't know */
+#define __NR_oldstat 18 /* remove */
+#define __NR_lseek 19 /* ok */
+#define __NR_getpid 20 /* ok */
+#define __NR_mount 21 /* ok */
+#define __NR_umount 22 /* ok */ /* use only umount2 */
+#define __NR_setuid 23 /* ok */
+#define __NR_getuid 24 /* ok */
+#define __NR_stime 25 /* obsolete -> sys_settimeofday */
+#define __NR_ptrace 26 /* ok */
+#define __NR_alarm 27 /* obsolete -> sys_setitimer */
+#define __NR_oldfstat 28 /* remove */
+#define __NR_pause 29 /* obsolete -> sys_rt_sigtimedwait */
+#define __NR_utime 30 /* obsolete -> sys_utimesat */
+#define __NR_stty 31 /* remove */
+#define __NR_gtty 32 /* remove */
+#define __NR_access 33 /* faccessat */
+/* can be implemented by sys_setpriority */
+#define __NR_nice 34
+#define __NR_ftime 35 /* remove */
+#define __NR_sync 36 /* ok */
+#define __NR_kill 37 /* ok */
+#define __NR_rename 38 /* renameat */
+#define __NR_mkdir 39 /* mkdirat */
+#define __NR_rmdir 40 /* unlinkat */
+#define __NR_dup 41 /* ok */
+#define __NR_pipe 42 /* ok */
+#define __NR_times 43 /* ok */
+#define __NR_prof 44 /* remove */
+#define __NR_brk 45 /* ok -mmu, nommu specific */
+#define __NR_setgid 46 /* ok */
+#define __NR_getgid 47 /* ok */
+#define __NR_signal 48 /* obsolete -> sys_rt_sigaction */
+#define __NR_geteuid 49 /* ok */
+#define __NR_getegid 50 /* ok */
+#define __NR_acct 51 /* add it and then I can disable it */
+#define __NR_umount2 52 /* remove */
+#define __NR_lock 53 /* remove */
+#define __NR_ioctl 54 /* ok */
+#define __NR_fcntl 55 /* ok -> 64bit version*/
+#define __NR_mpx 56 /* remove */
+#define __NR_setpgid 57 /* ok */
+#define __NR_ulimit 58 /* remove */
+#define __NR_oldolduname 59 /* remove */
+#define __NR_umask 60 /* ok */
+#define __NR_chroot 61 /* ok */
+#define __NR_ustat 62 /* obsolete -> statfs64 */
+#define __NR_dup2 63 /* ok */
+#define __NR_getppid 64 /* ok */
+#define __NR_getpgrp 65 /* obsolete -> sys_getpgid */
+#define __NR_setsid 66 /* ok */
+#define __NR_sigaction 67 /* obsolete -> rt_sigaction */
+#define __NR_sgetmask 68 /* obsolete -> sys_rt_sigprocmask */
+#define __NR_ssetmask 69 /* obsolete ->sys_rt_sigprocmask */
+#define __NR_setreuid 70 /* ok */
+#define __NR_setregid 71 /* ok */
+#define __NR_sigsuspend 72 /* obsolete -> rt_sigsuspend */
+#define __NR_sigpending 73 /* obsolete -> sys_rt_sigpending */
+#define __NR_sethostname 74 /* ok */
+#define __NR_setrlimit 75 /* ok */
+#define __NR_getrlimit 76 /* ok Back compatible 2G limited rlimit */
+#define __NR_getrusage 77 /* ok */
+#define __NR_gettimeofday 78 /* ok */
+#define __NR_settimeofday 79 /* ok */
+#define __NR_getgroups 80 /* ok */
+#define __NR_setgroups 81 /* ok */
+#define __NR_select 82 /* obsolete -> sys_pselect7 */
+#define __NR_symlink 83 /* symlinkat */
+#define __NR_oldlstat 84 /* remove */
+#define __NR_readlink 85 /* obsolete -> sys_readlinkat */
+#define __NR_uselib 86 /* remove */
+#define __NR_swapon 87 /* ok */
+#define __NR_reboot 88 /* ok */
+#define __NR_readdir 89 /* remove ? */
+#define __NR_mmap 90 /* obsolete -> sys_mmap2 */
+#define __NR_munmap 91 /* ok - mmu and nommu */
+#define __NR_truncate 92 /* ok or truncate64 */
+#define __NR_ftruncate 93 /* ok or ftruncate64 */
+#define __NR_fchmod 94 /* ok */
+#define __NR_fchown 95 /* ok */
+#define __NR_getpriority 96 /* ok */
+#define __NR_setpriority 97 /* ok */
+#define __NR_profil 98 /* remove */
+#define __NR_statfs 99 /* ok or statfs64 */
+#define __NR_fstatfs 100 /* ok or fstatfs64 */
+#define __NR_ioperm 101 /* remove */
+#define __NR_socketcall 102 /* remove */
+#define __NR_syslog 103 /* ok */
+#define __NR_setitimer 104 /* ok */
+#define __NR_getitimer 105 /* ok */
+#define __NR_stat 106 /* remove */
+#define __NR_lstat 107 /* remove */
+#define __NR_fstat 108 /* remove */
+#define __NR_olduname 109 /* remove */
+#define __NR_iopl 110 /* remove */
+#define __NR_vhangup 111 /* ok */
+#define __NR_idle 112 /* remove */
+#define __NR_vm86old 113 /* remove */
+#define __NR_wait4 114 /* obsolete -> waitid */
+#define __NR_swapoff 115 /* ok */
+#define __NR_sysinfo 116 /* ok */
+#define __NR_ipc 117 /* remove - direct call */
+#define __NR_fsync 118 /* ok */
+#define __NR_sigreturn 119 /* obsolete -> sys_rt_sigreturn */
+#define __NR_clone 120 /* ok */
+#define __NR_setdomainname 121 /* ok */
+#define __NR_uname 122 /* remove */
+#define __NR_modify_ldt 123 /* remove */
+#define __NR_adjtimex 124 /* ok */
+#define __NR_mprotect 125 /* remove */
+#define __NR_sigprocmask 126 /* obsolete -> sys_rt_sigprocmask */
+#define __NR_create_module 127 /* remove */
+#define __NR_init_module 128 /* ok */
+#define __NR_delete_module 129 /* ok */
+#define __NR_get_kernel_syms 130 /* remove */
+#define __NR_quotactl 131 /* ok */
+#define __NR_getpgid 132 /* ok */
+#define __NR_fchdir 133 /* ok */
+#define __NR_bdflush 134 /* remove */
+#define __NR_sysfs 135 /* needed for busybox */
+#define __NR_personality 136 /* ok */
+#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
+#define __NR_setfsuid 138 /* ok */
+#define __NR_setfsgid 139 /* ok */
+#define __NR__llseek 140 /* remove only lseek */
+#define __NR_getdents 141 /* ok or getdents64 */
+#define __NR__newselect 142 /* remove */
+#define __NR_flock 143 /* ok */
+#define __NR_msync 144 /* remove */
+#define __NR_readv 145 /* ok */
+#define __NR_writev 146 /* ok */
+#define __NR_getsid 147 /* ok */
+#define __NR_fdatasync 148 /* ok */
+#define __NR__sysctl 149 /* remove */
+#define __NR_mlock 150 /* ok - nommu or mmu */
+#define __NR_munlock 151 /* ok - nommu or mmu */
+#define __NR_mlockall 152 /* ok - nommu or mmu */
+#define __NR_munlockall 153 /* ok - nommu or mmu */
+#define __NR_sched_setparam 154 /* ok */
+#define __NR_sched_getparam 155 /* ok */
+#define __NR_sched_setscheduler 156 /* ok */
+#define __NR_sched_getscheduler 157 /* ok */
+#define __NR_sched_yield 158 /* ok */
+#define __NR_sched_get_priority_max 159 /* ok */
+#define __NR_sched_get_priority_min 160 /* ok */
+#define __NR_sched_rr_get_interval 161 /* ok */
+#define __NR_nanosleep 162 /* ok */
+#define __NR_mremap 163 /* ok - nommu or mmu */
+#define __NR_setresuid 164 /* ok */
+#define __NR_getresuid 165 /* ok */
+#define __NR_vm86 166 /* remove */
+#define __NR_query_module 167 /* ok */
+#define __NR_poll 168 /* obsolete -> sys_ppoll */
+#define __NR_nfsservctl 169 /* ok */
+#define __NR_setresgid 170 /* ok */
+#define __NR_getresgid 171 /* ok */
+#define __NR_prctl 172 /* ok */
+#define __NR_rt_sigreturn 173 /* ok */
+#define __NR_rt_sigaction 174 /* ok */
+#define __NR_rt_sigprocmask 175 /* ok */
+#define __NR_rt_sigpending 176 /* ok */
+#define __NR_rt_sigtimedwait 177 /* ok */
+#define __NR_rt_sigqueueinfo 178 /* ok */
+#define __NR_rt_sigsuspend 179 /* ok */
+#define __NR_pread64 180 /* ok */
+#define __NR_pwrite64 181 /* ok */
+#define __NR_chown 182 /* obsolete -> fchownat */
+#define __NR_getcwd 183 /* ok */
+#define __NR_capget 184 /* ok */
+#define __NR_capset 185 /* ok */
+#define __NR_sigaltstack 186 /* remove */
+#define __NR_sendfile 187 /* ok -> exist 64bit version*/
+#define __NR_getpmsg 188 /* remove */
+/* remove - some people actually want streams */
+#define __NR_putpmsg 189
+/* for noMMU - group with clone -> maybe remove */
+#define __NR_vfork 190
+#define __NR_ugetrlimit 191 /* remove - SuS compliant getrlimit */
+#define __NR_mmap2 192 /* ok */
+#define __NR_truncate64 193 /* ok */
+#define __NR_ftruncate64 194 /* ok */
+#define __NR_stat64 195 /* remove _ARCH_WANT_STAT64 */
+#define __NR_lstat64 196 /* remove _ARCH_WANT_STAT64 */
+#define __NR_fstat64 197 /* remove _ARCH_WANT_STAT64 */
+#define __NR_lchown32 198 /* ok - without 32 */
+#define __NR_getuid32 199 /* ok - without 32 */
+#define __NR_getgid32 200 /* ok - without 32 */
+#define __NR_geteuid32 201 /* ok - without 32 */
+#define __NR_getegid32 202 /* ok - without 32 */
+#define __NR_setreuid32 203 /* ok - without 32 */
+#define __NR_setregid32 204 /* ok - without 32 */
+#define __NR_getgroups32 205 /* ok - without 32 */
+#define __NR_setgroups32 206 /* ok - without 32 */
+#define __NR_fchown32 207 /* ok - without 32 */
+#define __NR_setresuid32 208 /* ok - without 32 */
+#define __NR_getresuid32 209 /* ok - without 32 */
+#define __NR_setresgid32 210 /* ok - without 32 */
+#define __NR_getresgid32 211 /* ok - without 32 */
+#define __NR_chown32 212 /* ok - without 32 -obsolete -> fchownat */
+#define __NR_setuid32 213 /* ok - without 32 */
+#define __NR_setgid32 214 /* ok - without 32 */
+#define __NR_setfsuid32 215 /* ok - without 32 */
+#define __NR_setfsgid32 216 /* ok - without 32 */
+#define __NR_pivot_root 217 /* ok */
+#define __NR_mincore 218 /* ok */
+#define __NR_madvise 219 /* ok */
+#define __NR_getdents64 220 /* ok */
+#define __NR_fcntl64 221 /* ok */
+/* 223 is unused */
+#define __NR_gettid 224 /* ok */
+#define __NR_readahead 225 /* ok */
+#define __NR_setxattr 226 /* ok */
+#define __NR_lsetxattr 227 /* ok */
+#define __NR_fsetxattr 228 /* ok */
+#define __NR_getxattr 229 /* ok */
+#define __NR_lgetxattr 230 /* ok */
+#define __NR_fgetxattr 231 /* ok */
+#define __NR_listxattr 232 /* ok */
+#define __NR_llistxattr 233 /* ok */
+#define __NR_flistxattr 234 /* ok */
+#define __NR_removexattr 235 /* ok */
+#define __NR_lremovexattr 236 /* ok */
+#define __NR_fremovexattr 237 /* ok */
+#define __NR_tkill 238 /* ok */
+#define __NR_sendfile64 239 /* ok */
+#define __NR_futex 240 /* ok */
+#define __NR_sched_setaffinity 241 /* ok */
+#define __NR_sched_getaffinity 242 /* ok */
+#define __NR_set_thread_area 243 /* remove */
+#define __NR_get_thread_area 244 /* remove */
+#define __NR_io_setup 245 /* ok */
+#define __NR_io_destroy 246 /* ok */
+#define __NR_io_getevents 247 /* ok */
+#define __NR_io_submit 248 /* ok */
+#define __NR_io_cancel 249 /* ok */
+#define __NR_fadvise64 250 /* remove -> sys_fadvise64_64 */
+/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
+#define __NR_exit_group 252 /* ok */
+#define __NR_lookup_dcookie 253 /* ok */
+#define __NR_epoll_create 254 /* ok */
+#define __NR_epoll_ctl 255 /* ok */
+#define __NR_epoll_wait 256 /* obsolete -> sys_epoll_pwait */
+#define __NR_remap_file_pages 257 /* only for mmu */
+#define __NR_set_tid_address 258 /* ok */
+#define __NR_timer_create 259 /* ok */
+#define __NR_timer_settime (__NR_timer_create+1) /* 260 */ /* ok */
+#define __NR_timer_gettime (__NR_timer_create+2) /* 261 */ /* ok */
+#define __NR_timer_getoverrun (__NR_timer_create+3) /* 262 */ /* ok */
+#define __NR_timer_delete (__NR_timer_create+4) /* 263 */ /* ok */
+#define __NR_clock_settime (__NR_timer_create+5) /* 264 */ /* ok */
+#define __NR_clock_gettime (__NR_timer_create+6) /* 265 */ /* ok */
+#define __NR_clock_getres (__NR_timer_create+7) /* 266 */ /* ok */
+#define __NR_clock_nanosleep (__NR_timer_create+8) /* 267 */ /* ok */
+#define __NR_statfs64 268 /* ok */
+#define __NR_fstatfs64 269 /* ok */
+#define __NR_tgkill 270 /* ok */
+#define __NR_utimes 271 /* obsolete -> sys_futimesat */
+#define __NR_fadvise64_64 272 /* ok */
+#define __NR_vserver 273 /* ok */
+#define __NR_mbind 274 /* only for mmu */
+#define __NR_get_mempolicy 275 /* only for mmu */
+#define __NR_set_mempolicy 276 /* only for mmu */
+#define __NR_mq_open 277 /* ok */
+#define __NR_mq_unlink (__NR_mq_open+1) /* 278 */ /* ok */
+#define __NR_mq_timedsend (__NR_mq_open+2) /* 279 */ /* ok */
+#define __NR_mq_timedreceive (__NR_mq_open+3) /* 280 */ /* ok */
+#define __NR_mq_notify (__NR_mq_open+4) /* 281 */ /* ok */
+#define __NR_mq_getsetattr (__NR_mq_open+5) /* 282 */ /* ok */
+#define __NR_kexec_load 283 /* ok */
+#define __NR_waitid 284 /* ok */
+/* #define __NR_sys_setaltroot 285 */
+#define __NR_add_key 286 /* ok */
+#define __NR_request_key 287 /* ok */
+#define __NR_keyctl 288 /* ok */
+#define __NR_ioprio_set 289 /* ok */
+#define __NR_ioprio_get 290 /* ok */
+#define __NR_inotify_init 291 /* ok */
+#define __NR_inotify_add_watch 292 /* ok */
+#define __NR_inotify_rm_watch 293 /* ok */
+#define __NR_migrate_pages 294 /* mmu */
+#define __NR_openat 295 /* ok */
+#define __NR_mkdirat 296 /* ok */
+#define __NR_mknodat 297 /* ok */
+#define __NR_fchownat 298 /* ok */
+#define __NR_futimesat 299 /* obsolete -> sys_utimesat */
+#define __NR_fstatat64 300 /* stat64 */
+#define __NR_unlinkat 301 /* ok */
+#define __NR_renameat 302 /* ok */
+#define __NR_linkat 303 /* ok */
+#define __NR_symlinkat 304 /* ok */
+#define __NR_readlinkat 305 /* ok */
+#define __NR_fchmodat 306 /* ok */
+#define __NR_faccessat 307 /* ok */
+#define __NR_pselect6 308 /* obsolete -> sys_pselect7 */
+#define __NR_ppoll 309 /* ok */
+#define __NR_unshare 310 /* ok */
+#define __NR_set_robust_list 311 /* ok */
+#define __NR_get_robust_list 312 /* ok */
+#define __NR_splice 313 /* ok */
+#define __NR_sync_file_range 314 /* ok */
+#define __NR_tee 315 /* ok */
+#define __NR_vmsplice 316 /* ok */
+#define __NR_move_pages 317 /* mmu */
+#define __NR_getcpu 318 /* ok */
+#define __NR_epoll_pwait 319 /* ok */
+#define __NR_utimensat 320 /* ok */
+#define __NR_signalfd 321 /* ok */
+#define __NR_timerfd_create 322 /* ok */
+#define __NR_eventfd 323 /* ok */
+#define __NR_fallocate 324 /* ok */
+#define __NR_semtimedop 325 /* ok - semaphore group */
+#define __NR_timerfd_settime 326 /* ok */
+#define __NR_timerfd_gettime 327 /* ok */
+/* sysv ipc syscalls */
+#define __NR_semctl 328 /* ok */
+#define __NR_semget 329 /* ok */
+#define __NR_semop 330 /* ok */
+#define __NR_msgctl 331 /* ok */
+#define __NR_msgget 332 /* ok */
+#define __NR_msgrcv 333 /* ok */
+#define __NR_msgsnd 334 /* ok */
+#define __NR_shmat 335 /* ok */
+#define __NR_shmctl 336 /* ok */
+#define __NR_shmdt 337 /* ok */
+#define __NR_shmget 338 /* ok */
+
+
+#define __NR_signalfd4 339 /* new */
+#define __NR_eventfd2 340 /* new */
+#define __NR_epoll_create1 341 /* new */
+#define __NR_dup3 342 /* new */
+#define __NR_pipe2 343 /* new */
+#define __NR_inotify_init1 344 /* new */
+#define __NR_socket 345 /* new */
+#define __NR_socketpair 346 /* new */
+#define __NR_bind 347 /* new */
+#define __NR_listen 348 /* new */
+#define __NR_accept 349 /* new */
+#define __NR_connect 350 /* new */
+#define __NR_getsockname 351 /* new */
+#define __NR_getpeername 352 /* new */
+#define __NR_sendto 353 /* new */
+#define __NR_send 354 /* new */
+#define __NR_recvfrom 355 /* new */
+#define __NR_recv 356 /* new */
+#define __NR_setsockopt 357 /* new */
+#define __NR_getsockopt 358 /* new */
+#define __NR_shutdown 359 /* new */
+#define __NR_sendmsg 360 /* new */
+#define __NR_recvmsg 361 /* new */
+#define __NR_accept04 362 /* new */
+
+#define __NR_syscalls 363
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+/* #define __ARCH_WANT_OLD_READDIR */
+/* #define __ARCH_WANT_OLD_STAT */
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SGETMASK
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_WAITPID
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+/* #define __ARCH_WANT_SYS_OLD_GETRLIMIT */
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+/* #define __ARCH_WANT_SYS_RT_SIGSUSPEND */
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/include/asm/user.h b/arch/microblaze/include/asm/user.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/user.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/vga.h b/arch/microblaze/include/asm/vga.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/vga.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/xor.h b/arch/microblaze/include/asm/xor.h
new file mode 100644
index 0000000..c82eb12
--- /dev/null
+++ b/arch/microblaze/include/asm/xor.h
@@ -0,0 +1 @@
+#include <asm-generic/xor.h>
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
new file mode 100644
index 0000000..da94bec
--- /dev/null
+++ b/arch/microblaze/kernel/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile
+#
+
+extra-y := head.o vmlinux.lds
+
+obj-y += exceptions.o \
+ hw_exception_handler.o init_task.o intc.o irq.o of_device.o \
+ of_platform.o process.o prom.o prom_parse.o ptrace.o \
+ setup.o signal.o sys_microblaze.o timer.o traps.o
+
+obj-y += cpu/
+
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+obj-$(CONFIG_SELFMOD) += selfmod.o
+obj-$(CONFIG_HEART_BEAT) += heartbeat.o
+obj-$(CONFIG_MODULES) += microblaze_ksyms.o module.o
+
+obj-y += entry$(MMUEXT).o
diff --git a/arch/microblaze/kernel/asm-offsets.c b/arch/microblaze/kernel/asm-offsets.c
new file mode 100644
index 0000000..38e1a2e
--- /dev/null
+++ b/arch/microblaze/kernel/asm-offsets.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
+#include <linux/hardirq.h>
+#include <linux/thread_info.h>
+#include <linux/kbuild.h>
+
+int main(int argc, char *argv[])
+{
+ /* struct pt_regs */
+ DEFINE(PT_SIZE, sizeof(struct pt_regs));
+ DEFINE(PT_MSR, offsetof(struct pt_regs, msr));
+ DEFINE(PT_EAR, offsetof(struct pt_regs, ear));
+ DEFINE(PT_ESR, offsetof(struct pt_regs, esr));
+ DEFINE(PT_FSR, offsetof(struct pt_regs, fsr));
+ DEFINE(PT_PC, offsetof(struct pt_regs, pc));
+ DEFINE(PT_R0, offsetof(struct pt_regs, r0));
+ DEFINE(PT_R1, offsetof(struct pt_regs, r1));
+ DEFINE(PT_R2, offsetof(struct pt_regs, r2));
+ DEFINE(PT_R3, offsetof(struct pt_regs, r3));
+ DEFINE(PT_R4, offsetof(struct pt_regs, r4));
+ DEFINE(PT_R5, offsetof(struct pt_regs, r5));
+ DEFINE(PT_R6, offsetof(struct pt_regs, r6));
+ DEFINE(PT_R7, offsetof(struct pt_regs, r7));
+ DEFINE(PT_R8, offsetof(struct pt_regs, r8));
+ DEFINE(PT_R9, offsetof(struct pt_regs, r9));
+ DEFINE(PT_R10, offsetof(struct pt_regs, r10));
+ DEFINE(PT_R11, offsetof(struct pt_regs, r11));
+ DEFINE(PT_R12, offsetof(struct pt_regs, r12));
+ DEFINE(PT_R13, offsetof(struct pt_regs, r13));
+ DEFINE(PT_R14, offsetof(struct pt_regs, r14));
+ DEFINE(PT_R15, offsetof(struct pt_regs, r15));
+ DEFINE(PT_R16, offsetof(struct pt_regs, r16));
+ DEFINE(PT_R17, offsetof(struct pt_regs, r17));
+ DEFINE(PT_R18, offsetof(struct pt_regs, r18));
+ DEFINE(PT_R19, offsetof(struct pt_regs, r19));
+ DEFINE(PT_R20, offsetof(struct pt_regs, r20));
+ DEFINE(PT_R21, offsetof(struct pt_regs, r21));
+ DEFINE(PT_R22, offsetof(struct pt_regs, r22));
+ DEFINE(PT_R23, offsetof(struct pt_regs, r23));
+ DEFINE(PT_R24, offsetof(struct pt_regs, r24));
+ DEFINE(PT_R25, offsetof(struct pt_regs, r25));
+ DEFINE(PT_R26, offsetof(struct pt_regs, r26));
+ DEFINE(PT_R27, offsetof(struct pt_regs, r27));
+ DEFINE(PT_R28, offsetof(struct pt_regs, r28));
+ DEFINE(PT_R29, offsetof(struct pt_regs, r29));
+ DEFINE(PT_R30, offsetof(struct pt_regs, r30));
+ DEFINE(PT_R31, offsetof(struct pt_regs, r31));
+ DEFINE(PT_MODE, offsetof(struct pt_regs, kernel_mode));
+ BLANK();
+
+ /* Magic offsets for PTRACE PEEK/POKE etc */
+ DEFINE(PT_TEXT_ADDR, sizeof(struct pt_regs) + 1);
+ DEFINE(PT_TEXT_LEN, sizeof(struct pt_regs) + 2);
+ DEFINE(PT_DATA_ADDR, sizeof(struct pt_regs) + 3);
+ BLANK();
+
+ /* struct task_struct */
+ DEFINE(TS_THREAD_INFO, offsetof(struct task_struct, stack));
+
+ /* struct thread_info */
+ DEFINE(TI_TASK, offsetof(struct thread_info, task));
+ DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
+ DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+ DEFINE(TI_STATUS, offsetof(struct thread_info, status));
+ DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+ DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
+ DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
+ DEFINE(TI_RESTART_BLOCK, offsetof(struct thread_info, restart_block));
+ DEFINE(TI_CPU_CONTEXT, offsetof(struct thread_info, cpu_context));
+ BLANK();
+
+ /* struct cpu_context */
+ DEFINE(CC_R1, offsetof(struct cpu_context, r1)); /* r1 */
+ DEFINE(CC_R2, offsetof(struct cpu_context, r2));
+ /* dedicated registers */
+ DEFINE(CC_R13, offsetof(struct cpu_context, r13));
+ DEFINE(CC_R14, offsetof(struct cpu_context, r14));
+ DEFINE(CC_R15, offsetof(struct cpu_context, r15));
+ DEFINE(CC_R16, offsetof(struct cpu_context, r16));
+ DEFINE(CC_R17, offsetof(struct cpu_context, r17));
+ DEFINE(CC_R18, offsetof(struct cpu_context, r18));
+ /* non-volatile registers */
+ DEFINE(CC_R19, offsetof(struct cpu_context, r19));
+ DEFINE(CC_R20, offsetof(struct cpu_context, r20));
+ DEFINE(CC_R21, offsetof(struct cpu_context, r21));
+ DEFINE(CC_R22, offsetof(struct cpu_context, r22));
+ DEFINE(CC_R23, offsetof(struct cpu_context, r23));
+ DEFINE(CC_R24, offsetof(struct cpu_context, r24));
+ DEFINE(CC_R25, offsetof(struct cpu_context, r25));
+ DEFINE(CC_R26, offsetof(struct cpu_context, r26));
+ DEFINE(CC_R27, offsetof(struct cpu_context, r27));
+ DEFINE(CC_R28, offsetof(struct cpu_context, r28));
+ DEFINE(CC_R29, offsetof(struct cpu_context, r29));
+ DEFINE(CC_R30, offsetof(struct cpu_context, r30));
+ /* special purpose registers */
+ DEFINE(CC_MSR, offsetof(struct cpu_context, msr));
+ DEFINE(CC_EAR, offsetof(struct cpu_context, ear));
+ DEFINE(CC_ESR, offsetof(struct cpu_context, esr));
+ DEFINE(CC_FSR, offsetof(struct cpu_context, fsr));
+ BLANK();
+
+ return 0;
+}
diff --git a/arch/microblaze/kernel/cpu/Makefile b/arch/microblaze/kernel/cpu/Makefile
new file mode 100644
index 0000000..20646e5
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/Makefile
@@ -0,0 +1,8 @@
+#
+# Build the appropriate CPU version support
+#
+
+EXTRA_CFLAGS += -DCPU_MAJOR=$(CPU_MAJOR) -DCPU_MINOR=$(CPU_MINOR) \
+ -DCPU_REV=$(CPU_REV)
+
+obj-y += cache.o cpuinfo.o cpuinfo-pvr-full.o cpuinfo-static.o mb.o pvr.o
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
new file mode 100644
index 0000000..be9fecc
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -0,0 +1,258 @@
+/*
+ * Cache control for MicroBlaze cache memories
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#include <asm/cacheflush.h>
+#include <linux/cache.h>
+#include <asm/cpuinfo.h>
+
+/* Exported functions */
+
+void _enable_icache(void)
+{
+ if (cpuinfo.use_icache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+ __asm__ __volatile__ (" \
+ msrset r0, %0; \
+ nop; " \
+ : \
+ : "i" (MSR_ICE) \
+ : "memory");
+#else
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ ori r12, r12, %0; \
+ mts rmsr, r12; \
+ nop; " \
+ : \
+ : "i" (MSR_ICE) \
+ : "memory", "r12");
+#endif
+ }
+}
+
+void _disable_icache(void)
+{
+ if (cpuinfo.use_icache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+ __asm__ __volatile__ (" \
+ msrclr r0, %0; \
+ nop; " \
+ : \
+ : "i" (MSR_ICE) \
+ : "memory");
+#else
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ andi r12, r12, ~%0; \
+ mts rmsr, r12; \
+ nop; " \
+ : \
+ : "i" (MSR_ICE) \
+ : "memory", "r12");
+#endif
+ }
+}
+
+void _invalidate_icache(unsigned int addr)
+{
+ if (cpuinfo.use_icache) {
+ __asm__ __volatile__ (" \
+ wic %0, r0" \
+ : \
+ : "r" (addr));
+ }
+}
+
+void _enable_dcache(void)
+{
+ if (cpuinfo.use_dcache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+ __asm__ __volatile__ (" \
+ msrset r0, %0; \
+ nop; " \
+ : \
+ : "i" (MSR_DCE) \
+ : "memory");
+#else
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ ori r12, r12, %0; \
+ mts rmsr, r12; \
+ nop; " \
+ : \
+ : "i" (MSR_DCE) \
+ : "memory", "r12");
+#endif
+ }
+}
+
+void _disable_dcache(void)
+{
+ if (cpuinfo.use_dcache) {
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+ __asm__ __volatile__ (" \
+ msrclr r0, %0; \
+ nop; " \
+ : \
+ : "i" (MSR_DCE) \
+ : "memory");
+#else
+ __asm__ __volatile__ (" \
+ mfs r12, rmsr; \
+ nop; \
+ andi r12, r12, ~%0; \
+ mts rmsr, r12; \
+ nop; " \
+ : \
+ : "i" (MSR_DCE) \
+ : "memory", "r12");
+#endif
+ }
+}
+
+void _invalidate_dcache(unsigned int addr)
+{
+ if (cpuinfo.use_dcache)
+ __asm__ __volatile__ (" \
+ wdc %0, r0" \
+ : \
+ : "r" (addr));
+}
+
+void __invalidate_icache_all(void)
+{
+ unsigned int i;
+ unsigned flags;
+
+ if (cpuinfo.use_icache) {
+ local_irq_save(flags);
+ __disable_icache();
+
+ /* Just loop through cache size and invalidate, no need to add
+ CACHE_BASE address */
+ for (i = 0; i < cpuinfo.icache_size;
+ i += cpuinfo.icache_line)
+ __invalidate_icache(i);
+
+ __enable_icache();
+ local_irq_restore(flags);
+ }
+}
+
+void __invalidate_icache_range(unsigned long start, unsigned long end)
+{
+ unsigned int i;
+ unsigned flags;
+ unsigned int align;
+
+ if (cpuinfo.use_icache) {
+ /*
+ * No need to cover entire cache range,
+ * just cover cache footprint
+ */
+ end = min(start + cpuinfo.icache_size, end);
+ align = ~(cpuinfo.icache_line - 1);
+ start &= align; /* Make sure we are aligned */
+ /* Push end up to the next cache line */
+ end = ((end & align) + cpuinfo.icache_line);
+
+ local_irq_save(flags);
+ __disable_icache();
+
+ for (i = start; i < end; i += cpuinfo.icache_line)
+ __invalidate_icache(i);
+
+ __enable_icache();
+ local_irq_restore(flags);
+ }
+}
+
+void __invalidate_icache_page(struct vm_area_struct *vma, struct page *page)
+{
+ __invalidate_icache_all();
+}
+
+void __invalidate_icache_user_range(struct vm_area_struct *vma,
+ struct page *page, unsigned long adr,
+ int len)
+{
+ __invalidate_icache_all();
+}
+
+void __invalidate_cache_sigtramp(unsigned long addr)
+{
+ __invalidate_icache_range(addr, addr + 8);
+}
+
+void __invalidate_dcache_all(void)
+{
+ unsigned int i;
+ unsigned flags;
+
+ if (cpuinfo.use_dcache) {
+ local_irq_save(flags);
+ __disable_dcache();
+
+ /*
+ * Just loop through cache size and invalidate,
+ * no need to add CACHE_BASE address
+ */
+ for (i = 0; i < cpuinfo.dcache_size;
+ i += cpuinfo.dcache_line)
+ __invalidate_dcache(i);
+
+ __enable_dcache();
+ local_irq_restore(flags);
+ }
+}
+
+void __invalidate_dcache_range(unsigned long start, unsigned long end)
+{
+ unsigned int i;
+ unsigned flags;
+ unsigned int align;
+
+ if (cpuinfo.use_dcache) {
+ /*
+ * No need to cover entire cache range,
+ * just cover cache footprint
+ */
+ end = min(start + cpuinfo.dcache_size, end);
+ align = ~(cpuinfo.dcache_line - 1);
+ start &= align; /* Make sure we are aligned */
+ /* Push end up to the next cache line */
+ end = ((end & align) + cpuinfo.dcache_line);
+ local_irq_save(flags);
+ __disable_dcache();
+
+ for (i = start; i < end; i += cpuinfo.dcache_line)
+ __invalidate_dcache(i);
+
+ __enable_dcache();
+ local_irq_restore(flags);
+ }
+}
+
+void __invalidate_dcache_page(struct vm_area_struct *vma, struct page *page)
+{
+ __invalidate_dcache_all();
+}
+
+void __invalidate_dcache_user_range(struct vm_area_struct *vma,
+ struct page *page, unsigned long adr,
+ int len)
+{
+ __invalidate_dcache_all();
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
new file mode 100644
index 0000000..cf7424a
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
@@ -0,0 +1,101 @@
+/*
+ * Support for MicroBlaze PVR (processor version register)
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/pvr.h>
+#include <asm/cpuinfo.h>
+
+/*
+ * Helper macro to map between fields in our struct cpuinfo, and
+ * the PVR macros in pvr.h.
+ */
+
+#define CI(c, p) { ci->c = PVR_##p(pvr); }
+#define err_printk(x) \
+ early_printk("ERROR: Microblaze " x " - different for PVR and DTS\n");
+
+void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
+{
+ struct pvr_s pvr;
+ int temp; /* for saving temp value */
+ get_pvr(&pvr);
+
+ temp = PVR_USE_BARREL(pvr) | PVR_USE_MSR_INSTR(pvr) |\
+ PVR_USE_PCMP_INSTR(pvr) | PVR_USE_DIV(pvr);
+ if (ci->use_instr != temp)
+ err_printk("BARREL, MSR, PCMP or DIV");
+ ci->use_instr = temp;
+
+ temp = PVR_USE_HW_MUL(pvr) | PVR_USE_MUL64(pvr);
+ if (ci->use_mult != temp)
+ err_printk("HW_MUL");
+ ci->use_mult = temp;
+
+ temp = PVR_USE_FPU(pvr) | PVR_USE_FPU2(pvr);
+ if (ci->use_fpu != temp)
+ err_printk("HW_FPU");
+ ci->use_fpu = temp;
+
+ ci->use_exc = PVR_OPCODE_0x0_ILLEGAL(pvr) |\
+ PVR_UNALIGNED_EXCEPTION(pvr) |\
+ PVR_ILL_OPCODE_EXCEPTION(pvr) |\
+ PVR_IOPB_BUS_EXCEPTION(pvr) |\
+ PVR_DOPB_BUS_EXCEPTION(pvr) |\
+ PVR_DIV_ZERO_EXCEPTION(pvr) |\
+ PVR_FPU_EXCEPTION(pvr) |\
+ PVR_FSL_EXCEPTION(pvr);
+
+ CI(pvr_user1, USER1);
+ CI(pvr_user2, USER2);
+
+ CI(mmu, USE_MMU);
+
+ CI(ver_code, VERSION);
+
+ CI(use_icache, USE_ICACHE);
+ CI(icache_tagbits, ICACHE_ADDR_TAG_BITS);
+ CI(icache_write, ICACHE_ALLOW_WR);
+ CI(icache_line, ICACHE_LINE_LEN);
+ CI(icache_size, ICACHE_BYTE_SIZE);
+ CI(icache_base, ICACHE_BASEADDR);
+ CI(icache_high, ICACHE_HIGHADDR);
+
+ CI(use_dcache, USE_DCACHE);
+ CI(dcache_tagbits, DCACHE_ADDR_TAG_BITS);
+ CI(dcache_write, DCACHE_ALLOW_WR);
+ CI(dcache_line, DCACHE_LINE_LEN);
+ CI(dcache_size, DCACHE_BYTE_SIZE);
+ CI(dcache_base, DCACHE_BASEADDR);
+ CI(dcache_high, DCACHE_HIGHADDR);
+
+ CI(use_dopb, D_OPB);
+ CI(use_iopb, I_OPB);
+ CI(use_dlmb, D_LMB);
+ CI(use_ilmb, I_LMB);
+ CI(num_fsl, FSL_LINKS);
+
+ CI(irq_edge, INTERRUPT_IS_EDGE);
+ CI(irq_positive, EDGE_IS_POSITIVE);
+
+ CI(area_optimised, AREA_OPTIMISED);
+
+ CI(hw_debug, DEBUG_ENABLED);
+ CI(num_pc_brk, NUMBER_OF_PC_BRK);
+ CI(num_rd_brk, NUMBER_OF_RD_ADDR_BRK);
+ CI(num_wr_brk, NUMBER_OF_WR_ADDR_BRK);
+
+ CI(fpga_family_code, TARGET_FAMILY);
+
+ /* take timebase-frequency from DTS */
+ ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c
new file mode 100644
index 0000000..cfe44ef
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/cpuinfo.h>
+#include <asm/pvr.h>
+
+const static char family_string[] = CONFIG_XILINX_MICROBLAZE0_FAMILY;
+const static char cpu_ver_string[] = CONFIG_XILINX_MICROBLAZE0_HW_VER;
+
+#define err_printk(x) \
+ early_printk("ERROR: Microblaze " x "- different for kernel and DTS\n");
+
+void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
+{
+ int i = 0;
+
+ ci->use_instr =
+ (fcpu(cpu, "xlnx,use-barrel") ? PVR0_USE_BARREL_MASK : 0) |
+ (fcpu(cpu, "xlnx,use-msr-instr") ? PVR2_USE_MSR_INSTR : 0) |
+ (fcpu(cpu, "xlnx,use-pcmp-instr") ? PVR2_USE_PCMP_INSTR : 0) |
+ (fcpu(cpu, "xlnx,use-div") ? PVR0_USE_DIV_MASK : 0);
+ if (CONFIG_XILINX_MICROBLAZE0_USE_BARREL)
+ i |= PVR0_USE_BARREL_MASK;
+ if (CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR)
+ i |= PVR2_USE_MSR_INSTR;
+ if (CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR)
+ i |= PVR2_USE_PCMP_INSTR;
+ if (CONFIG_XILINX_MICROBLAZE0_USE_DIV)
+ i |= PVR0_USE_DIV_MASK;
+ if (ci->use_instr != i)
+ err_printk("BARREL, MSR, PCMP or DIV");
+
+ ci->use_mult = fcpu(cpu, "xlnx,use-hw-mul");
+ if (ci->use_mult != CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)
+ err_printk("HW_MUL");
+ ci->use_mult =
+ (ci->use_mult > 1 ?
+ (PVR2_USE_MUL64_MASK | PVR0_USE_HW_MUL_MASK) :
+ (ci->use_mult == 1 ? PVR0_USE_HW_MUL_MASK : 0));
+
+ ci->use_fpu = fcpu(cpu, "xlnx,use-fpu");
+ if (ci->use_fpu != CONFIG_XILINX_MICROBLAZE0_USE_FPU)
+ err_printk("HW_FPU");
+ ci->use_fpu = (ci->use_fpu > 1 ?
+ (PVR2_USE_FPU2_MASK | PVR0_USE_FPU_MASK) :
+ (ci->use_fpu == 1 ? PVR0_USE_FPU_MASK : 0));
+
+ ci->use_exc =
+ (fcpu(cpu, "xlnx,unaligned-exceptions") ?
+ PVR2_UNALIGNED_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,ill-opcode-exception") ?
+ PVR2_ILL_OPCODE_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,iopb-bus-exception") ?
+ PVR2_IOPB_BUS_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,dopb-bus-exception") ?
+ PVR2_DOPB_BUS_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,div-zero-exception") ?
+ PVR2_DIV_ZERO_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,fpu-exception") ? PVR2_FPU_EXC_MASK : 0) |
+ (fcpu(cpu, "xlnx,fsl-exception") ? PVR2_USE_EXTEND_FSL : 0);
+
+ ci->use_icache = fcpu(cpu, "xlnx,use-icache");
+ ci->icache_tagbits = fcpu(cpu, "xlnx,addr-tag-bits");
+ ci->icache_write = fcpu(cpu, "xlnx,allow-icache-wr");
+ ci->icache_line = fcpu(cpu, "xlnx,icache-line-len") << 2;
+ if (!ci->icache_line) {
+ if (fcpu(cpu, "xlnx,icache-use-fsl"))
+ ci->icache_line = 4 << 2;
+ else
+ ci->icache_line = 1 << 2;
+ }
+ ci->icache_size = fcpu(cpu, "i-cache-size");
+ ci->icache_base = fcpu(cpu, "i-cache-baseaddr");
+ ci->icache_high = fcpu(cpu, "i-cache-highaddr");
+
+ ci->use_dcache = fcpu(cpu, "xlnx,use-dcache");
+ ci->dcache_tagbits = fcpu(cpu, "xlnx,dcache-addr-tag");
+ ci->dcache_write = fcpu(cpu, "xlnx,allow-dcache-wr");
+ ci->dcache_line = fcpu(cpu, "xlnx,dcache-line-len") << 2;
+ if (!ci->dcache_line) {
+ if (fcpu(cpu, "xlnx,dcache-use-fsl"))
+ ci->dcache_line = 4 << 2;
+ else
+ ci->dcache_line = 1 << 2;
+ }
+ ci->dcache_size = fcpu(cpu, "d-cache-size");
+ ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");
+ ci->dcache_high = fcpu(cpu, "d-cache-highaddr");
+
+ ci->use_dopb = fcpu(cpu, "xlnx,d-opb");
+ ci->use_iopb = fcpu(cpu, "xlnx,i-opb");
+ ci->use_dlmb = fcpu(cpu, "xlnx,d-lmb");
+ ci->use_ilmb = fcpu(cpu, "xlnx,i-lmb");
+
+ ci->num_fsl = fcpu(cpu, "xlnx,fsl-links");
+ ci->irq_edge = fcpu(cpu, "xlnx,interrupt-is-edge");
+ ci->irq_positive = fcpu(cpu, "xlnx,edge-is-positive");
+ ci->area_optimised = 0;
+
+ ci->hw_debug = fcpu(cpu, "xlnx,debug-enabled");
+ ci->num_pc_brk = fcpu(cpu, "xlnx,number-of-pc-brk");
+ ci->num_rd_brk = fcpu(cpu, "xlnx,number-of-rd-addr-brk");
+ ci->num_wr_brk = fcpu(cpu, "xlnx,number-of-wr-addr-brk");
+
+ ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
+
+ ci->pvr_user1 = fcpu(cpu, "xlnx,pvr-user1");
+ ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2");
+
+ ci->mmu = fcpu(cpu, "xlnx,use-mmu");
+
+ ci->ver_code = 0;
+ ci->fpga_family_code = 0;
+
+ /* Do various fixups based on CPU version and FPGA family strings */
+
+ /* Resolved the CPU version code */
+ for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
+ if (strcmp(cpu_ver_lookup[i].s, cpu_ver_string) == 0)
+ ci->ver_code = cpu_ver_lookup[i].k;
+ }
+
+ /* Resolved the fpga family code */
+ for (i = 0; family_string_lookup[i].s != NULL; i++) {
+ if (strcmp(family_string_lookup[i].s, family_string) == 0)
+ ci->fpga_family_code = family_string_lookup[i].k;
+ }
+
+ /* FIXME - mb3 and spartan2 do not exist in PVR */
+ /* This is mb3 and on a non Spartan2 */
+ if (ci->ver_code == 0x20 && ci->fpga_family_code != 0xf0)
+ /* Hardware Multiplier in use */
+ ci->use_mult = 1;
+}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
new file mode 100644
index 0000000..4a740df
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <asm/cpuinfo.h>
+#include <asm/pvr.h>
+
+const struct cpu_ver_key cpu_ver_lookup[] = {
+ /* These key value are as per MBV field in PVR0 */
+ {"5.00.a", 0x01},
+ {"5.00.b", 0x02},
+ {"5.00.c", 0x03},
+ {"6.00.a", 0x04},
+ {"6.00.b", 0x06},
+ {"7.00.a", 0x05},
+ {"7.00.b", 0x07},
+ {"7.10.a", 0x08},
+ {"7.10.b", 0x09},
+ {"7.10.c", 0x0a},
+ {"7.10.d", 0x0b},
+ /* FIXME There is no keycode defined in MBV for these versions */
+ {"2.10.a", 0x10},
+ {"3.00.a", 0x20},
+ {"4.00.a", 0x30},
+ {"4.00.b", 0x40},
+ {NULL, 0},
+};
+
+/*
+ * FIXME Not sure if the actual key is defined by Xilinx in the PVR
+ */
+const struct family_string_key family_string_lookup[] = {
+ {"virtex2", 0x4},
+ {"virtex2pro", 0x5},
+ {"spartan3", 0x6},
+ {"virtex4", 0x7},
+ {"virtex5", 0x8},
+ {"spartan3e", 0x9},
+ {"spartan3a", 0xa},
+ {"spartan3an", 0xb},
+ {"spartan3adsp", 0xc},
+ /* FIXME There is no key code defined for spartan2 */
+ {"spartan2", 0xf0},
+ {NULL, 0},
+};
+
+struct cpuinfo cpuinfo;
+
+void __init setup_cpuinfo(void)
+{
+ struct device_node *cpu = NULL;
+
+ cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu");
+ if (!cpu)
+ printk(KERN_ERR "You don't have cpu!!!\n");
+
+ printk(KERN_INFO "%s: initialising\n", __func__);
+
+ switch (cpu_has_pvr()) {
+ case 0:
+ printk(KERN_WARNING
+ "%s: No PVR support. Using static CPU info from FDT\n",
+ __func__);
+ set_cpuinfo_static(&cpuinfo, cpu);
+ break;
+/* FIXME I found weird behavior with MB 7.00.a/b
+ * please do not use FULL PVR with MMU */
+ case 1:
+ printk(KERN_INFO "%s: Using full CPU PVR support\n",
+ __func__);
+ set_cpuinfo_static(&cpuinfo, cpu);
+ set_cpuinfo_pvr_full(&cpuinfo, cpu);
+ break;
+ default:
+ printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__);
+ set_cpuinfo_static(&cpuinfo, cpu);
+ }
+}
diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c
new file mode 100644
index 0000000..3b6212b
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/mb.c
@@ -0,0 +1,148 @@
+/*
+ * CPU-version specific code
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006-2009 PetaLogix
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/cpu.h>
+#include <linux/initrd.h>
+
+#include <linux/bug.h>
+#include <asm/cpuinfo.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <linux/param.h>
+#include <asm/pvr.h>
+#include <asm/sections.h>
+#include <asm/setup.h>
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+ int count = 0;
+ char *fpga_family = "Unknown";
+ char *cpu_ver = "Unknown";
+ int i;
+
+ /* Denormalised to get the fpga family string */
+ for (i = 0; family_string_lookup[i].s != NULL; i++) {
+ if (cpuinfo.fpga_family_code == family_string_lookup[i].k) {
+ fpga_family = (char *)family_string_lookup[i].s;
+ break;
+ }
+ }
+
+ /* Denormalised to get the hw version string */
+ for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
+ if (cpuinfo.ver_code == cpu_ver_lookup[i].k) {
+ cpu_ver = (char *)cpu_ver_lookup[i].s;
+ break;
+ }
+ }
+
+ count = seq_printf(m,
+ "CPU-Family: MicroBlaze\n"
+ "FPGA-Arch: %s\n"
+ "CPU-Ver: %s\n"
+ "CPU-MHz: %d.%02d\n"
+ "BogoMips: %lu.%02lu\n",
+ fpga_family,
+ cpu_ver,
+ cpuinfo.cpu_clock_freq /
+ 1000000,
+ cpuinfo.cpu_clock_freq %
+ 1000000,
+ loops_per_jiffy / (500000 / HZ),
+ (loops_per_jiffy / (5000 / HZ)) % 100);
+
+ count += seq_printf(m,
+ "HW:\n Shift:\t\t%s\n"
+ " MSR:\t\t%s\n"
+ " PCMP:\t\t%s\n"
+ " DIV:\t\t%s\n",
+ (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no",
+ (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no",
+ (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no",
+ (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no");
+
+ count += seq_printf(m,
+ " MMU:\t\t%x\n",
+ cpuinfo.mmu);
+
+ count += seq_printf(m,
+ " MUL:\t\t%s\n"
+ " FPU:\t\t%s\n",
+ (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" :
+ (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no",
+ (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" :
+ (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no");
+
+ count += seq_printf(m,
+ " Exc:\t\t%s%s%s%s%s%s%s%s\n",
+ (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "",
+ (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "",
+ (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "",
+ (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "",
+ (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "",
+ (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "",
+ (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "",
+ (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : "");
+
+ if (cpuinfo.use_icache)
+ count += seq_printf(m,
+ "Icache:\t\t%ukB\n",
+ cpuinfo.icache_size >> 10);
+ else
+ count += seq_printf(m, "Icache:\t\tno\n");
+
+ if (cpuinfo.use_dcache)
+ count += seq_printf(m,
+ "Dcache:\t\t%ukB\n",
+ cpuinfo.dcache_size >> 10);
+ else
+ count += seq_printf(m, "Dcache:\t\tno\n");
+
+ count += seq_printf(m,
+ "HW-Debug:\t%s\n",
+ cpuinfo.hw_debug ? "yes" : "no");
+
+ count += seq_printf(m,
+ "PVR-USR1:\t%x\n"
+ "PVR-USR2:\t%x\n",
+ cpuinfo.pvr_user1,
+ cpuinfo.pvr_user2);
+
+ return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+ int i = *pos;
+
+ return i < NR_CPUS ? (void *) (i + 1) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ ++*pos;
+ return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+ .start = c_start,
+ .next = c_next,
+ .stop = c_stop,
+ .show = show_cpuinfo,
+};
diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c
new file mode 100644
index 0000000..c9a4340
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/pvr.c
@@ -0,0 +1,81 @@
+/*
+ * Support for MicroBlaze PVR (processor version register)
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <asm/system.h>
+#include <asm/exceptions.h>
+#include <asm/pvr.h>
+
+/*
+ * Until we get an assembler that knows about the pvr registers,
+ * this horrible cruft will have to do.
+ * That hardcoded opcode is mfs r3, rpvrNN
+ */
+
+#define get_single_pvr(pvrid, val) \
+{ \
+ register unsigned tmp __asm__("r3"); \
+ tmp = 0x0; /* Prevent warning about unused */ \
+ __asm__ __volatile__ ( \
+ ".byte 0x94,0x60,0xa0, " #pvrid "\n\t" \
+ : "=r" (tmp) : : "memory"); \
+ val = tmp; \
+}
+
+/*
+ * Does the CPU support the PVR register?
+ * return value:
+ * 0: no PVR
+ * 1: simple PVR
+ * 2: full PVR
+ *
+ * This must work on all CPU versions, including those before the
+ * PVR was even an option.
+ */
+
+int cpu_has_pvr(void)
+{
+ unsigned flags;
+ unsigned pvr0;
+
+ local_save_flags(flags);
+
+ /* PVR bit in MSR tells us if there is any support */
+ if (!(flags & PVR_MSR_BIT))
+ return 0;
+
+ get_single_pvr(0x00, pvr0);
+ pr_debug("%s: pvr0 is 0x%08x\n", __func__, pvr0);
+
+ if (pvr0 & PVR0_PVR_FULL_MASK)
+ return 1;
+
+ /* for partial PVR use static cpuinfo */
+ return 2;
+}
+
+void get_pvr(struct pvr_s *p)
+{
+ get_single_pvr(0, p->pvr[0]);
+ get_single_pvr(1, p->pvr[1]);
+ get_single_pvr(2, p->pvr[2]);
+ get_single_pvr(3, p->pvr[3]);
+ get_single_pvr(4, p->pvr[4]);
+ get_single_pvr(5, p->pvr[5]);
+ get_single_pvr(6, p->pvr[6]);
+ get_single_pvr(7, p->pvr[7]);
+ get_single_pvr(8, p->pvr[8]);
+ get_single_pvr(9, p->pvr[9]);
+ get_single_pvr(10, p->pvr[10]);
+ get_single_pvr(11, p->pvr[11]);
+}
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
new file mode 100644
index 0000000..62cc789
--- /dev/null
+++ b/arch/microblaze/kernel/early_printk.c
@@ -0,0 +1,107 @@
+/*
+ * Early printk support for Microblaze.
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2003-2006 Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/console.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/tty.h>
+#include <linux/io.h>
+#include <asm/processor.h>
+#include <linux/fcntl.h>
+#include <asm/setup.h>
+#include <asm/prom.h>
+
+static u32 early_console_initialized;
+static u32 base_addr;
+
+static void early_printk_putc(char c)
+{
+ /*
+ * Limit how many times we'll spin waiting for TX FIFO status.
+ * This will prevent lockups if the base address is incorrectly
+ * set, or any other issue on the UARTLITE.
+ * This limit is pretty arbitrary, unless we are at about 10 baud
+ * we'll never timeout on a working UART.
+ */
+
+ unsigned retries = 10000;
+ /* read status bit - 0x8 offset */
+ while (retries-- && (in_be32(base_addr + 8) & (1 << 3)))
+ ;
+
+ /* Only attempt the iowrite if we didn't timeout */
+ /* write to TX_FIFO - 0x4 offset */
+ if (retries)
+ out_be32(base_addr + 4, c & 0xff);
+}
+
+static void early_printk_write(struct console *unused,
+ const char *s, unsigned n)
+{
+ while (*s && n-- > 0) {
+ early_printk_putc(*s);
+ if (*s == '\n')
+ early_printk_putc('\r');
+ s++;
+ }
+}
+
+static struct console early_serial_console = {
+ .name = "earlyser",
+ .write = early_printk_write,
+ .flags = CON_PRINTBUFFER,
+ .index = -1,
+};
+
+static struct console *early_console = &early_serial_console;
+
+void early_printk(const char *fmt, ...)
+{
+ char buf[512];
+ int n;
+ va_list ap;
+
+ if (early_console_initialized) {
+ va_start(ap, fmt);
+ n = vscnprintf(buf, 512, fmt, ap);
+ early_console->write(early_console, buf, n);
+ va_end(ap);
+ }
+}
+
+int __init setup_early_printk(char *opt)
+{
+ if (early_console_initialized)
+ return 1;
+
+ base_addr = early_uartlite_console();
+ if (base_addr) {
+ early_console_initialized = 1;
+ early_printk("early_printk_console is enabled at 0x%08x\n",
+ base_addr);
+
+ /* register_console(early_console); */
+
+ return 0;
+ } else
+ return 1;
+}
+
+void __init disable_early_printk(void)
+{
+ if (!early_console_initialized || !early_console)
+ return;
+ printk(KERN_WARNING "disabling early console\n");
+ unregister_console(early_console);
+ early_console_initialized = 0;
+}
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
new file mode 100644
index 0000000..f24b126
--- /dev/null
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -0,0 +1,596 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+#include <asm/entry.h>
+#include <asm/asm-offsets.h>
+#include <asm/registers.h>
+#include <asm/unistd.h>
+#include <asm/percpu.h>
+#include <asm/signal.h>
+
+#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+ .macro disable_irq
+ msrclr r0, MSR_IE
+ .endm
+
+ .macro enable_irq
+ msrset r0, MSR_IE
+ .endm
+
+ .macro clear_bip
+ msrclr r0, MSR_BIP
+ .endm
+#else
+ .macro disable_irq
+ mfs r11, rmsr
+ andi r11, r11, ~MSR_IE
+ mts rmsr, r11
+ .endm
+
+ .macro enable_irq
+ mfs r11, rmsr
+ ori r11, r11, MSR_IE
+ mts rmsr, r11
+ .endm
+
+ .macro clear_bip
+ mfs r11, rmsr
+ andi r11, r11, ~MSR_BIP
+ mts rmsr, r11
+ .endm
+#endif
+
+ENTRY(_interrupt)
+ swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
+ swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
+ lwi r11, r0, PER_CPU(KM) /* load mode indicator */
+ beqid r11, 1f
+ nop
+ brid 2f /* jump over */
+ addik r1, r1, (-PT_SIZE) /* room for pt_regs (delay slot) */
+1: /* switch to kernel stack */
+ lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
+ lwi r1, r1, TS_THREAD_INFO /* get the thread info */
+ /* calculate kernel stack pointer */
+ addik r1, r1, THREAD_SIZE - PT_SIZE
+2:
+ swi r11, r1, PT_MODE /* store the mode */
+ lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
+ swi r2, r1, PT_R2
+ swi r3, r1, PT_R3
+ swi r4, r1, PT_R4
+ swi r5, r1, PT_R5
+ swi r6, r1, PT_R6
+ swi r7, r1, PT_R7
+ swi r8, r1, PT_R8
+ swi r9, r1, PT_R9
+ swi r10, r1, PT_R10
+ swi r11, r1, PT_R11
+ swi r12, r1, PT_R12
+ swi r13, r1, PT_R13
+ swi r14, r1, PT_R14
+ swi r14, r1, PT_PC
+ swi r15, r1, PT_R15
+ swi r16, r1, PT_R16
+ swi r17, r1, PT_R17
+ swi r18, r1, PT_R18
+ swi r19, r1, PT_R19
+ swi r20, r1, PT_R20
+ swi r21, r1, PT_R21
+ swi r22, r1, PT_R22
+ swi r23, r1, PT_R23
+ swi r24, r1, PT_R24
+ swi r25, r1, PT_R25
+ swi r26, r1, PT_R26
+ swi r27, r1, PT_R27
+ swi r28, r1, PT_R28
+ swi r29, r1, PT_R29
+ swi r30, r1, PT_R30
+ swi r31, r1, PT_R31
+ /* special purpose registers */
+ mfs r11, rmsr
+ swi r11, r1, PT_MSR
+ mfs r11, rear
+ swi r11, r1, PT_EAR
+ mfs r11, resr
+ swi r11, r1, PT_ESR
+ mfs r11, rfsr
+ swi r11, r1, PT_FSR
+ /* reload original stack pointer and save it */
+ lwi r11, r0, PER_CPU(ENTRY_SP)
+ swi r11, r1, PT_R1
+ /* update mode indicator we are in kernel mode */
+ addik r11, r0, 1
+ swi r11, r0, PER_CPU(KM)
+ /* restore r31 */
+ lwi r31, r0, PER_CPU(CURRENT_SAVE)
+ /* prepare the link register, the argument and jump */
+ la r15, r0, ret_from_intr - 8
+ addk r6, r0, r15
+ braid do_IRQ
+ add r5, r0, r1
+
+ret_from_intr:
+ lwi r11, r1, PT_MODE
+ bneid r11, 3f
+
+ lwi r6, r31, TS_THREAD_INFO /* get thread info */
+ lwi r19, r6, TI_FLAGS /* get flags in thread info */
+ /* do an extra work if any bits are set */
+
+ andi r11, r19, _TIF_NEED_RESCHED
+ beqi r11, 1f
+ bralid r15, schedule
+ nop
+1: andi r11, r19, _TIF_SIGPENDING
+ beqid r11, no_intr_reshed
+ addk r5, r1, r0
+ addk r7, r0, r0
+ bralid r15, do_signal
+ addk r6, r0, r0
+
+no_intr_reshed:
+ /* save mode indicator */
+ lwi r11, r1, PT_MODE
+3:
+ swi r11, r0, PER_CPU(KM)
+
+ /* save r31 */
+ swi r31, r0, PER_CPU(CURRENT_SAVE)
+restore_context:
+ /* special purpose registers */
+ lwi r11, r1, PT_FSR
+ mts rfsr, r11
+ lwi r11, r1, PT_ESR
+ mts resr, r11
+ lwi r11, r1, PT_EAR
+ mts rear, r11
+ lwi r11, r1, PT_MSR
+ mts rmsr, r11
+
+ lwi r31, r1, PT_R31
+ lwi r30, r1, PT_R30
+ lwi r29, r1, PT_R29
+ lwi r28, r1, PT_R28
+ lwi r27, r1, PT_R27
+ lwi r26, r1, PT_R26
+ lwi r25, r1, PT_R25
+ lwi r24, r1, PT_R24
+ lwi r23, r1, PT_R23
+ lwi r22, r1, PT_R22
+ lwi r21, r1, PT_R21
+ lwi r20, r1, PT_R20
+ lwi r19, r1, PT_R19
+ lwi r18, r1, PT_R18
+ lwi r17, r1, PT_R17
+ lwi r16, r1, PT_R16
+ lwi r15, r1, PT_R15
+ lwi r14, r1, PT_PC
+ lwi r13, r1, PT_R13
+ lwi r12, r1, PT_R12
+ lwi r11, r1, PT_R11
+ lwi r10, r1, PT_R10
+ lwi r9, r1, PT_R9
+ lwi r8, r1, PT_R8
+ lwi r7, r1, PT_R7
+ lwi r6, r1, PT_R6
+ lwi r5, r1, PT_R5
+ lwi r4, r1, PT_R4
+ lwi r3, r1, PT_R3
+ lwi r2, r1, PT_R2
+ lwi r1, r1, PT_R1
+ rtid r14, 0
+ nop
+
+ENTRY(_reset)
+ brai 0;
+
+ENTRY(_user_exception)
+ swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
+ swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
+ lwi r11, r0, PER_CPU(KM) /* load mode indicator */
+ beqid r11, 1f /* Already in kernel mode? */
+ nop
+ brid 2f /* jump over */
+ addik r1, r1, (-PT_SIZE) /* Room for pt_regs (delay slot) */
+1: /* Switch to kernel stack */
+ lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
+ lwi r1, r1, TS_THREAD_INFO /* get the thread info */
+ /* calculate kernel stack pointer */
+ addik r1, r1, THREAD_SIZE - PT_SIZE
+ swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
+ lwi r11, r0, PER_CPU(KM) /* load mode indicator */
+2:
+ swi r11, r1, PT_MODE /* store the mode */
+ lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
+ /* save them on stack */
+ swi r2, r1, PT_R2
+ swi r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
+ swi r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
+ swi r5, r1, PT_R5
+ swi r6, r1, PT_R6
+ swi r7, r1, PT_R7
+ swi r8, r1, PT_R8
+ swi r9, r1, PT_R9
+ swi r10, r1, PT_R10
+ swi r11, r1, PT_R11
+ /* r12: _always_ in clobber list; see unistd.h */
+ swi r12, r1, PT_R12
+ swi r13, r1, PT_R13
+ /* r14: _always_ in clobber list; see unistd.h */
+ swi r14, r1, PT_R14
+ /* but we want to return to the next inst. */
+ addik r14, r14, 0x4
+ swi r14, r1, PT_PC /* increment by 4 and store in pc */
+ swi r15, r1, PT_R15
+ swi r16, r1, PT_R16
+ swi r17, r1, PT_R17
+ swi r18, r1, PT_R18
+ swi r19, r1, PT_R19
+ swi r20, r1, PT_R20
+ swi r21, r1, PT_R21
+ swi r22, r1, PT_R22
+ swi r23, r1, PT_R23
+ swi r24, r1, PT_R24
+ swi r25, r1, PT_R25
+ swi r26, r1, PT_R26
+ swi r27, r1, PT_R27
+ swi r28, r1, PT_R28
+ swi r29, r1, PT_R29
+ swi r30, r1, PT_R30
+ swi r31, r1, PT_R31
+
+ disable_irq
+ nop /* make sure IE bit is in effect */
+ clear_bip /* once IE is in effect it is safe to clear BIP */
+ nop
+
+ /* special purpose registers */
+ mfs r11, rmsr
+ swi r11, r1, PT_MSR
+ mfs r11, rear
+ swi r11, r1, PT_EAR
+ mfs r11, resr
+ swi r11, r1, PT_ESR
+ mfs r11, rfsr
+ swi r11, r1, PT_FSR
+ /* reload original stack pointer and save it */
+ lwi r11, r0, PER_CPU(ENTRY_SP)
+ swi r11, r1, PT_R1
+ /* update mode indicator we are in kernel mode */
+ addik r11, r0, 1
+ swi r11, r0, PER_CPU(KM)
+ /* restore r31 */
+ lwi r31, r0, PER_CPU(CURRENT_SAVE)
+ /* re-enable interrupts now we are in kernel mode */
+ enable_irq
+
+ /* See if the system call number is valid. */
+ addi r11, r12, -__NR_syscalls
+ bgei r11, 1f /* return to user if not valid */
+ /* Figure out which function to use for this system call. */
+ /* Note Microblaze barrel shift is optional, so don't rely on it */
+ add r12, r12, r12 /* convert num -> ptr */
+ add r12, r12, r12
+ lwi r12, r12, sys_call_table /* Get function pointer */
+ la r15, r0, ret_to_user-8 /* set return address */
+ bra r12 /* Make the system call. */
+ bri 0 /* won't reach here */
+1:
+ brid ret_to_user /* jump to syscall epilogue */
+ addi r3, r0, -ENOSYS /* set errno in delay slot */
+
+/*
+ * Debug traps are like a system call, but entered via brki r14, 0x60
+ * All we need to do is send the SIGTRAP signal to current, ptrace and do_signal
+ * will handle the rest
+ */
+ENTRY(_debug_exception)
+ swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
+ lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
+ lwi r1, r1, TS_THREAD_INFO /* get the thread info */
+ addik r1, r1, THREAD_SIZE - PT_SIZE /* get the kernel stack */
+ swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
+ lwi r11, r0, PER_CPU(KM) /* load mode indicator */
+//save_context:
+ swi r11, r1, PT_MODE /* store the mode */
+ lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
+ /* save them on stack */
+ swi r2, r1, PT_R2
+ swi r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
+ swi r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
+ swi r5, r1, PT_R5
+ swi r6, r1, PT_R6
+ swi r7, r1, PT_R7
+ swi r8, r1, PT_R8
+ swi r9, r1, PT_R9
+ swi r10, r1, PT_R10
+ swi r11, r1, PT_R11
+ /* r12: _always_ in clobber list; see unistd.h */
+ swi r12, r1, PT_R12
+ swi r13, r1, PT_R13
+ /* r14: _always_ in clobber list; see unistd.h */
+ swi r14, r1, PT_R14
+ swi r14, r1, PT_PC /* Will return to interrupted instruction */
+ swi r15, r1, PT_R15
+ swi r16, r1, PT_R16
+ swi r17, r1, PT_R17
+ swi r18, r1, PT_R18
+ swi r19, r1, PT_R19
+ swi r20, r1, PT_R20
+ swi r21, r1, PT_R21
+ swi r22, r1, PT_R22
+ swi r23, r1, PT_R23
+ swi r24, r1, PT_R24
+ swi r25, r1, PT_R25
+ swi r26, r1, PT_R26
+ swi r27, r1, PT_R27
+ swi r28, r1, PT_R28
+ swi r29, r1, PT_R29
+ swi r30, r1, PT_R30
+ swi r31, r1, PT_R31
+
+ disable_irq
+ nop /* make sure IE bit is in effect */
+ clear_bip /* once IE is in effect it is safe to clear BIP */
+ nop
+
+ /* special purpose registers */
+ mfs r11, rmsr
+ swi r11, r1, PT_MSR
+ mfs r11, rear
+ swi r11, r1, PT_EAR
+ mfs r11, resr
+ swi r11, r1, PT_ESR
+ mfs r11, rfsr
+ swi r11, r1, PT_FSR
+ /* reload original stack pointer and save it */
+ lwi r11, r0, PER_CPU(ENTRY_SP)
+ swi r11, r1, PT_R1
+ /* update mode indicator we are in kernel mode */
+ addik r11, r0, 1
+ swi r11, r0, PER_CPU(KM)
+ /* restore r31 */
+ lwi r31, r0, PER_CPU(CURRENT_SAVE)
+ /* re-enable interrupts now we are in kernel mode */
+ enable_irq
+
+ addi r5, r0, SIGTRAP /* sending the trap signal */
+ add r6, r0, r31 /* to current */
+ bralid r15, send_sig
+ add r7, r0, r0 /* 3rd param zero */
+
+ /* Restore r3/r4 to work around how ret_to_user works */
+ lwi r3, r1, PT_R3
+ lwi r4, r1, PT_R4
+ bri ret_to_user
+
+ENTRY(_break)
+ bri 0
+
+/* struct task_struct *_switch_to(struct thread_info *prev,
+ struct thread_info *next); */
+ENTRY(_switch_to)
+ /* prepare return value */
+ addk r3, r0, r31
+
+ /* save registers in cpu_context */
+ /* use r11 and r12, volatile registers, as temp register */
+ addik r11, r5, TI_CPU_CONTEXT
+ swi r1, r11, CC_R1
+ swi r2, r11, CC_R2
+ /* skip volatile registers.
+ * they are saved on stack when we jumped to _switch_to() */
+ /* dedicated registers */
+ swi r13, r11, CC_R13
+ swi r14, r11, CC_R14
+ swi r15, r11, CC_R15
+ swi r16, r11, CC_R16
+ swi r17, r11, CC_R17
+ swi r18, r11, CC_R18
+ /* save non-volatile registers */
+ swi r19, r11, CC_R19
+ swi r20, r11, CC_R20
+ swi r21, r11, CC_R21
+ swi r22, r11, CC_R22
+ swi r23, r11, CC_R23
+ swi r24, r11, CC_R24
+ swi r25, r11, CC_R25
+ swi r26, r11, CC_R26
+ swi r27, r11, CC_R27
+ swi r28, r11, CC_R28
+ swi r29, r11, CC_R29
+ swi r30, r11, CC_R30
+ /* special purpose registers */
+ mfs r12, rmsr
+ swi r12, r11, CC_MSR
+ mfs r12, rear
+ swi r12, r11, CC_EAR
+ mfs r12, resr
+ swi r12, r11, CC_ESR
+ mfs r12, rfsr
+ swi r12, r11, CC_FSR
+
+ /* update r31, the current */
+ lwi r31, r6, TI_TASK
+ swi r31, r0, PER_CPU(CURRENT_SAVE)
+
+ /* get new process' cpu context and restore */
+ addik r11, r6, TI_CPU_CONTEXT
+
+ /* special purpose registers */
+ lwi r12, r11, CC_FSR
+ mts rfsr, r12
+ lwi r12, r11, CC_ESR
+ mts resr, r12
+ lwi r12, r11, CC_EAR
+ mts rear, r12
+ lwi r12, r11, CC_MSR
+ mts rmsr, r12
+ /* non-volatile registers */
+ lwi r30, r11, CC_R30
+ lwi r29, r11, CC_R29
+ lwi r28, r11, CC_R28
+ lwi r27, r11, CC_R27
+ lwi r26, r11, CC_R26
+ lwi r25, r11, CC_R25
+ lwi r24, r11, CC_R24
+ lwi r23, r11, CC_R23
+ lwi r22, r11, CC_R22
+ lwi r21, r11, CC_R21
+ lwi r20, r11, CC_R20
+ lwi r19, r11, CC_R19
+ /* dedicated registers */
+ lwi r18, r11, CC_R18
+ lwi r17, r11, CC_R17
+ lwi r16, r11, CC_R16
+ lwi r15, r11, CC_R15
+ lwi r14, r11, CC_R14
+ lwi r13, r11, CC_R13
+ /* skip volatile registers */
+ lwi r2, r11, CC_R2
+ lwi r1, r11, CC_R1
+
+ rtsd r15, 8
+ nop
+
+ENTRY(ret_from_fork)
+ addk r5, r0, r3
+ addk r6, r0, r1
+ brlid r15, schedule_tail
+ nop
+ swi r31, r1, PT_R31 /* save r31 in user context. */
+ /* will soon be restored to r31 in ret_to_user */
+ addk r3, r0, r0
+ brid ret_to_user
+ nop
+
+work_pending:
+ andi r11, r19, _TIF_NEED_RESCHED
+ beqi r11, 1f
+ bralid r15, schedule
+ nop
+1: andi r11, r19, _TIF_SIGPENDING
+ beqi r11, no_work_pending
+ addk r5, r1, r0
+ addik r7, r0, 1
+ bralid r15, do_signal
+ addk r6, r0, r0
+ bri no_work_pending
+
+ENTRY(ret_to_user)
+ disable_irq
+
+ swi r4, r1, PT_R4 /* return val */
+ swi r3, r1, PT_R3 /* return val */
+
+ lwi r6, r31, TS_THREAD_INFO /* get thread info */
+ lwi r19, r6, TI_FLAGS /* get flags in thread info */
+ bnei r19, work_pending /* do an extra work if any bits are set */
+no_work_pending:
+ disable_irq
+
+ /* save r31 */
+ swi r31, r0, PER_CPU(CURRENT_SAVE)
+ /* save mode indicator */
+ lwi r18, r1, PT_MODE
+ swi r18, r0, PER_CPU(KM)
+//restore_context:
+ /* special purpose registers */
+ lwi r18, r1, PT_FSR
+ mts rfsr, r18
+ lwi r18, r1, PT_ESR
+ mts resr, r18
+ lwi r18, r1, PT_EAR
+ mts rear, r18
+ lwi r18, r1, PT_MSR
+ mts rmsr, r18
+
+ lwi r31, r1, PT_R31
+ lwi r30, r1, PT_R30
+ lwi r29, r1, PT_R29
+ lwi r28, r1, PT_R28
+ lwi r27, r1, PT_R27
+ lwi r26, r1, PT_R26
+ lwi r25, r1, PT_R25
+ lwi r24, r1, PT_R24
+ lwi r23, r1, PT_R23
+ lwi r22, r1, PT_R22
+ lwi r21, r1, PT_R21
+ lwi r20, r1, PT_R20
+ lwi r19, r1, PT_R19
+ lwi r18, r1, PT_R18
+ lwi r17, r1, PT_R17
+ lwi r16, r1, PT_R16
+ lwi r15, r1, PT_R15
+ lwi r14, r1, PT_PC
+ lwi r13, r1, PT_R13
+ lwi r12, r1, PT_R12
+ lwi r11, r1, PT_R11
+ lwi r10, r1, PT_R10
+ lwi r9, r1, PT_R9
+ lwi r8, r1, PT_R8
+ lwi r7, r1, PT_R7
+ lwi r6, r1, PT_R6
+ lwi r5, r1, PT_R5
+ lwi r4, r1, PT_R4 /* return val */
+ lwi r3, r1, PT_R3 /* return val */
+ lwi r2, r1, PT_R2
+ lwi r1, r1, PT_R1
+
+ rtid r14, 0
+ nop
+
+sys_vfork_wrapper:
+ brid sys_vfork
+ addk r5, r1, r0
+
+sys_clone_wrapper:
+ brid sys_clone
+ addk r7, r1, r0
+
+sys_execve_wrapper:
+ brid sys_execve
+ addk r8, r1, r0
+
+sys_sigreturn_wrapper:
+ brid sys_sigreturn
+ addk r5, r1, r0
+
+sys_rt_sigreturn_wrapper:
+ brid sys_rt_sigreturn
+ addk r5, r1, r0
+
+sys_sigsuspend_wrapper:
+ brid sys_rt_sigsuspend
+ addk r6, r1, r0
+
+sys_rt_sigsuspend_wrapper:
+ brid sys_rt_sigsuspend
+ addk r7, r1, r0
+
+ /* Interrupt vector table */
+ .section .init.ivt, "ax"
+ .org 0x0
+ brai _reset
+ brai _user_exception
+ brai _interrupt
+ brai _break
+ brai _hw_exception_handler
+ .org 0x60
+ brai _debug_exception
+
+.section .rodata,"a"
+#include "syscall_table.S"
+
+syscall_table_size=(.-sys_call_table)
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
new file mode 100644
index 0000000..4a8a406
--- /dev/null
+++ b/arch/microblaze/kernel/exceptions.c
@@ -0,0 +1,124 @@
+/*
+ * HW exception handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008 PetaLogix
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kallsyms.h>
+#include <linux/module.h>
+
+#include <asm/exceptions.h>
+#include <asm/entry.h> /* For KM CPU var */
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <asm/ptrace.h>
+#include <asm/current.h>
+
+#define MICROBLAZE_ILL_OPCODE_EXCEPTION 0x02
+#define MICROBLAZE_IBUS_EXCEPTION 0x03
+#define MICROBLAZE_DBUS_EXCEPTION 0x04
+#define MICROBLAZE_DIV_ZERO_EXCEPTION 0x05
+#define MICROBLAZE_FPU_EXCEPTION 0x06
+#define MICROBLAZE_PRIVILEG_EXCEPTION 0x07
+
+static DEFINE_SPINLOCK(die_lock);
+
+void die(const char *str, struct pt_regs *fp, long err)
+{
+ console_verbose();
+ spin_lock_irq(&die_lock);
+ printk(KERN_WARNING "Oops: %s, sig: %ld\n", str, err);
+ show_regs(fp);
+ spin_unlock_irq(&die_lock);
+ /* do_exit() should take care of panic'ing from an interrupt
+ * context so we don't handle it here
+ */
+ do_exit(err);
+}
+
+void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
+{
+ siginfo_t info;
+
+ if (kernel_mode(regs)) {
+ debugger(regs);
+ die("Exception in kernel mode", regs, signr);
+ }
+ info.si_signo = signr;
+ info.si_errno = 0;
+ info.si_code = code;
+ info.si_addr = (void __user *) addr;
+ force_sig_info(signr, &info, current);
+}
+
+asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
+ int fsr, int addr)
+{
+#if 0
+ printk(KERN_WARNING "Exception %02x in %s mode, FSR=%08x PC=%08x ESR=%08x\n",
+ type, user_mode(regs) ? "user" : "kernel", fsr,
+ (unsigned int) regs->pc, (unsigned int) regs->esr);
+#endif
+
+ switch (type & 0x1F) {
+ case MICROBLAZE_ILL_OPCODE_EXCEPTION:
+ _exception(SIGILL, regs, ILL_ILLOPC, addr);
+ break;
+ case MICROBLAZE_IBUS_EXCEPTION:
+ if (user_mode(regs)) {
+ printk(KERN_WARNING "Instruction bus error exception in user mode.\n");
+ _exception(SIGBUS, regs, BUS_ADRERR, addr);
+ return;
+ }
+ printk(KERN_WARNING "Instruction bus error exception in kernel mode.\n");
+ die("bus exception", regs, SIGBUS);
+ break;
+ case MICROBLAZE_DBUS_EXCEPTION:
+ if (user_mode(regs)) {
+ printk(KERN_WARNING "Data bus error exception in user mode.\n");
+ _exception(SIGBUS, regs, BUS_ADRERR, addr);
+ return;
+ }
+ printk(KERN_WARNING "Data bus error exception in kernel mode.\n");
+ die("bus exception", regs, SIGBUS);
+ break;
+ case MICROBLAZE_DIV_ZERO_EXCEPTION:
+ printk(KERN_WARNING "Divide by zero exception\n");
+ _exception(SIGILL, regs, ILL_ILLOPC, addr);
+ break;
+
+ case MICROBLAZE_FPU_EXCEPTION:
+ /* IEEE FP exception */
+ /* I removed fsr variable and use code var for storing fsr */
+ if (fsr & FSR_IO)
+ fsr = FPE_FLTINV;
+ else if (fsr & FSR_OF)
+ fsr = FPE_FLTOVF;
+ else if (fsr & FSR_UF)
+ fsr = FPE_FLTUND;
+ else if (fsr & FSR_DZ)
+ fsr = FPE_FLTDIV;
+ else if (fsr & FSR_DO)
+ fsr = FPE_FLTRES;
+ _exception(SIGFPE, regs, fsr, addr);
+ break;
+
+ default:
+ printk(KERN_WARNING "Unexpected exception %02x "
+ "PC=%08x in %s mode\n", type, (unsigned int) addr,
+ kernel_mode(regs) ? "kernel" : "user");
+ }
+ return;
+}
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
new file mode 100644
index 0000000..319dc35
--- /dev/null
+++ b/arch/microblaze/kernel/head.S
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+
+ .text
+ENTRY(_start)
+ mfs r1, rmsr
+ andi r1, r1, ~2
+ mts rmsr, r1
+
+/* save fdt to kernel location */
+/* r7 stores pointer to fdt blob */
+ beqi r7, no_fdt_arg
+ or r11, r0, r0 /* incremment */
+ ori r4, r0, TOPHYS(_fdt_start) /* save bram context */
+ ori r3, r0, (0x4000 - 4)
+_copy_fdt:
+ lw r12, r7, r11 /* r12 = r7 + r11 */
+ sw r12, r4, r11 /* addr[r4 + r11] = r12 */
+ addik r11, r11, 4 /* increment counting */
+ bgtid r3, _copy_fdt /* loop for all entries */
+ addik r3, r3, -4 /* descrement loop */
+no_fdt_arg:
+
+ /* Initialize small data anchors */
+ la r13, r0, _KERNEL_SDA_BASE_
+ la r2, r0, _KERNEL_SDA2_BASE_
+
+ /* Initialize stack pointer */
+ la r1, r0, init_thread_union + THREAD_SIZE - 4
+
+ /* Initialize r31 with current task address */
+ la r31, r0, init_task
+
+ /*
+ * Call platform dependent initialize function.
+ * Please see $(ARCH)/mach-$(SUBARCH)/setup.c for
+ * the function.
+ */
+ la r8, r0, machine_early_init
+ brald r15, r8
+ nop
+
+ la r15, r0, machine_halt
+ braid start_kernel
+ nop
diff --git a/arch/microblaze/kernel/heartbeat.c b/arch/microblaze/kernel/heartbeat.c
new file mode 100644
index 0000000..1bdf202
--- /dev/null
+++ b/arch/microblaze/kernel/heartbeat.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/sched.h>
+#include <linux/io.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/prom.h>
+
+static unsigned int base_addr;
+
+void heartbeat(void)
+{
+ static unsigned int cnt, period, dist;
+
+ if (base_addr) {
+ if (cnt == 0 || cnt == dist)
+ out_be32(base_addr, 1);
+ else if (cnt == 7 || cnt == dist + 7)
+ out_be32(base_addr, 0);
+
+ if (++cnt > period) {
+ cnt = 0;
+ /*
+ * The hyperbolic function below modifies the heartbeat
+ * period length in dependency of the current (5min)
+ * load. It goes through the points f(0)=126, f(1)=86,
+ * f(5)=51, f(inf)->30.
+ */
+ period = ((672 << FSHIFT) / (5 * avenrun[0] +
+ (7 << FSHIFT))) + 30;
+ dist = period / 4;
+ }
+ }
+}
+
+void setup_heartbeat(void)
+{
+ struct device_node *gpio = NULL;
+ int j;
+ char *gpio_list[] = {
+ "xlnx,xps-gpio-1.00.a",
+ "xlnx,opb-gpio-1.00.a",
+ NULL
+ };
+
+ for (j = 0; gpio_list[j] != NULL; j++) {
+ gpio = of_find_compatible_node(NULL, NULL, gpio_list[j]);
+ if (gpio)
+ break;
+ }
+
+ base_addr = *(int *) of_get_property(gpio, "reg", NULL);
+ base_addr = (unsigned long) ioremap(base_addr, PAGE_SIZE);
+ printk(KERN_NOTICE "Heartbeat GPIO at 0x%x\n", base_addr);
+
+ if (*(int *) of_get_property(gpio, "xlnx,is-bidir", NULL))
+ out_be32(base_addr + 4, 0); /* GPIO is configured as output */
+}
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
new file mode 100644
index 0000000..cf9486d
--- /dev/null
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -0,0 +1,458 @@
+/*
+ * Exception handling for Microblaze
+ *
+ * Rewriten interrupt handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ *
+ * uClinux customisation (C) 2005 John Williams
+ *
+ * MMU code derived from arch/ppc/kernel/head_4xx.S:
+ * Copyright (C) 1995-1996 Gary Thomas <gdt@linuxppc.org>
+ * Initial PowerPC version.
+ * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
+ * Rewritten for PReP
+ * Copyright (C) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
+ * Low-level exception handers, MMU support, and rewrite.
+ * Copyright (C) 1997 Dan Malek <dmalek@jlc.net>
+ * PowerPC 8xx modifications.
+ * Copyright (C) 1998-1999 TiVo, Inc.
+ * PowerPC 403GCX modifications.
+ * Copyright (C) 1999 Grant Erickson <grant@lcse.umn.edu>
+ * PowerPC 403GCX/405GP modifications.
+ * Copyright 2000 MontaVista Software Inc.
+ * PPC405 modifications
+ * PowerPC 403GCX/405GP modifications.
+ * Author: MontaVista Software, Inc.
+ * frank_rowand@mvista.com or source@mvista.com
+ * debbie_chu@mvista.com
+ *
+ * Original code
+ * Copyright (C) 2004 Xilinx, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+/*
+ * Here are the handlers which don't require enabling translation
+ * and calling other kernel code thus we can keep their design very simple
+ * and do all processing in real mode. All what they need is a valid current
+ * (that is an issue for the CONFIG_REGISTER_TASK_PTR case)
+ * This handlers use r3,r4,r5,r6 and optionally r[current] to work therefore
+ * these registers are saved/restored
+ * The handlers which require translation are in entry.S --KAA
+ *
+ * Microblaze HW Exception Handler
+ * - Non self-modifying exception handler for the following exception conditions
+ * - Unalignment
+ * - Instruction bus error
+ * - Data bus error
+ * - Illegal instruction opcode
+ * - Divide-by-zero
+ *
+ * Note we disable interrupts during exception handling, otherwise we will
+ * possibly get multiple re-entrancy if interrupt handles themselves cause
+ * exceptions. JW
+ */
+
+#include <asm/exceptions.h>
+#include <asm/unistd.h>
+#include <asm/page.h>
+
+#include <asm/entry.h>
+#include <asm/current.h>
+#include <linux/linkage.h>
+
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/asm-offsets.h>
+
+/* Helpful Macros */
+#define EX_HANDLER_STACK_SIZ (4*19)
+#define NUM_TO_REG(num) r ## num
+
+#define LWREG_NOP \
+ bri ex_handler_unhandled; \
+ nop;
+
+#define SWREG_NOP \
+ bri ex_handler_unhandled; \
+ nop;
+
+/* FIXME this is weird - for noMMU kernel is not possible to use brid
+ * instruction which can shorten executed time
+ */
+
+/* r3 is the source */
+#define R3_TO_LWREG_V(regnum) \
+ swi r3, r1, 4 * regnum; \
+ bri ex_handler_done;
+
+/* r3 is the source */
+#define R3_TO_LWREG(regnum) \
+ or NUM_TO_REG (regnum), r0, r3; \
+ bri ex_handler_done;
+
+/* r3 is the target */
+#define SWREG_TO_R3_V(regnum) \
+ lwi r3, r1, 4 * regnum; \
+ bri ex_sw_tail;
+
+/* r3 is the target */
+#define SWREG_TO_R3(regnum) \
+ or r3, r0, NUM_TO_REG (regnum); \
+ bri ex_sw_tail;
+
+.extern other_exception_handler /* Defined in exception.c */
+
+/*
+ * hw_exception_handler - Handler for exceptions
+ *
+ * Exception handler notes:
+ * - Handles all exceptions
+ * - Does not handle unaligned exceptions during load into r17, r1, r0.
+ * - Does not handle unaligned exceptions during store from r17 (cannot be
+ * done) and r1 (slows down common case)
+ *
+ * Relevant register structures
+ *
+ * EAR - |----|----|----|----|----|----|----|----|
+ * - < ## 32 bit faulting address ## >
+ *
+ * ESR - |----|----|----|----|----| - | - |-----|-----|
+ * - W S REG EXC
+ *
+ *
+ * STACK FRAME STRUCTURE (for NO_MMU)
+ * ---------------------------------
+ *
+ * +-------------+ + 0
+ * | MSR |
+ * +-------------+ + 4
+ * | r1 |
+ * | . |
+ * | . |
+ * | . |
+ * | . |
+ * | r18 |
+ * +-------------+ + 76
+ * | . |
+ * | . |
+ *
+ * NO_MMU kernel use the same r0_ram pointed space - look to vmlinux.lds.S
+ * which is used for storing register values - old style was, that value were
+ * stored in stack but in case of failure you lost information about register.
+ * Currently you can see register value in memory in specific place.
+ * In compare to with previous solution the speed should be the same.
+ *
+ * MMU exception handler has different handling compare to no MMU kernel.
+ * Exception handler use jump table for directing of what happen. For MMU kernel
+ * is this approach better because MMU relate exception are handled by asm code
+ * in this file. In compare to with MMU expect of unaligned exception
+ * is everything handled by C code.
+ */
+
+/*
+ * every of these handlers is entered having R3/4/5/6/11/current saved on stack
+ * and clobbered so care should be taken to restore them if someone is going to
+ * return from exception
+ */
+
+/* wrappers to restore state before coming to entry.S */
+
+.global _hw_exception_handler
+.section .text
+.align 4
+.ent _hw_exception_handler
+_hw_exception_handler:
+ addik r1, r1, -(EX_HANDLER_STACK_SIZ); /* Create stack frame */
+ swi r3, r1, PT_R3
+ swi r4, r1, PT_R4
+ swi r5, r1, PT_R5
+ swi r6, r1, PT_R6
+
+ mfs r5, rmsr;
+ nop
+ swi r5, r1, 0;
+ mfs r4, rbtr /* Save BTR before jumping to handler */
+ nop
+ mfs r3, resr
+ nop
+
+ andi r5, r3, 0x1000; /* Check ESR[DS] */
+ beqi r5, not_in_delay_slot; /* Branch if ESR[DS] not set */
+ mfs r17, rbtr; /* ESR[DS] set - return address in BTR */
+ nop
+not_in_delay_slot:
+ swi r17, r1, PT_R17
+
+ andi r5, r3, 0x1F; /* Extract ESR[EXC] */
+
+ /* Exceptions enabled here. This will allow nested exceptions */
+ mfs r6, rmsr;
+ nop
+ swi r6, r1, 0; /* RMSR_OFFSET */
+ ori r6, r6, 0x100; /* Turn ON the EE bit */
+ andi r6, r6, ~2; /* Disable interrupts */
+ mts rmsr, r6;
+ nop
+
+ xori r6, r5, 1; /* 00001 = Unaligned Exception */
+ /* Jump to unalignment exception handler */
+ beqi r6, handle_unaligned_ex;
+
+handle_other_ex: /* Handle Other exceptions here */
+ /* Save other volatiles before we make procedure calls below */
+ swi r7, r1, PT_R7
+ swi r8, r1, PT_R8
+ swi r9, r1, PT_R9
+ swi r10, r1, PT_R10
+ swi r11, r1, PT_R11
+ swi r12, r1, PT_R12
+ swi r14, r1, PT_R14
+ swi r15, r1, PT_R15
+ swi r18, r1, PT_R18
+
+ or r5, r1, r0
+ andi r6, r3, 0x1F; /* Load ESR[EC] */
+ lwi r7, r0, PER_CPU(KM) /* MS: saving current kernel mode to regs */
+ swi r7, r1, PT_MODE
+ mfs r7, rfsr
+ nop
+ addk r8, r17, r0; /* Load exception address */
+ bralid r15, full_exception; /* Branch to the handler */
+ nop;
+
+ /*
+ * Trigger execution of the signal handler by enabling
+ * interrupts and calling an invalid syscall.
+ */
+ mfs r5, rmsr;
+ nop
+ ori r5, r5, 2;
+ mts rmsr, r5; /* enable interrupt */
+ nop
+ addi r12, r0, __NR_syscalls;
+ brki r14, 0x08;
+ mfs r5, rmsr; /* disable interrupt */
+ nop
+ andi r5, r5, ~2;
+ mts rmsr, r5;
+ nop
+
+ lwi r7, r1, PT_R7
+ lwi r8, r1, PT_R8
+ lwi r9, r1, PT_R9
+ lwi r10, r1, PT_R10
+ lwi r11, r1, PT_R11
+ lwi r12, r1, PT_R12
+ lwi r14, r1, PT_R14
+ lwi r15, r1, PT_R15
+ lwi r18, r1, PT_R18
+
+ bri ex_handler_done; /* Complete exception handling */
+
+/* 0x01 - Unaligned data access exception
+ * This occurs when a word access is not aligned on a word boundary,
+ * or when a 16-bit access is not aligned on a 16-bit boundary.
+ * This handler perform the access, and returns, except for MMU when
+ * the unaligned address is last on a 4k page or the physical address is
+ * not found in the page table, in which case unaligned_data_trap is called.
+ */
+handle_unaligned_ex:
+ /* Working registers already saved: R3, R4, R5, R6
+ * R3 = ESR
+ * R4 = BTR
+ */
+ mfs r4, rear;
+ nop
+
+ andi r6, r3, 0x3E0; /* Mask and extract the register operand */
+ srl r6, r6; /* r6 >> 5 */
+ srl r6, r6;
+ srl r6, r6;
+ srl r6, r6;
+ srl r6, r6;
+ /* Store the register operand in a temporary location */
+ sbi r6, r0, TOPHYS(ex_reg_op);
+
+ andi r6, r3, 0x400; /* Extract ESR[S] */
+ bnei r6, ex_sw;
+ex_lw:
+ andi r6, r3, 0x800; /* Extract ESR[W] */
+ beqi r6, ex_lhw;
+ lbui r5, r4, 0; /* Exception address in r4 */
+ /* Load a word, byte-by-byte from destination address
+ and save it in tmp space */
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_0);
+ lbui r5, r4, 1;
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_1);
+ lbui r5, r4, 2;
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_2);
+ lbui r5, r4, 3;
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_3);
+ /* Get the destination register value into r3 */
+ lwi r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ bri ex_lw_tail;
+ex_lhw:
+ lbui r5, r4, 0; /* Exception address in r4 */
+ /* Load a half-word, byte-by-byte from destination
+ address and save it in tmp space */
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_0);
+ lbui r5, r4, 1;
+ sbi r5, r0, TOPHYS(ex_tmp_data_loc_1);
+ /* Get the destination register value into r3 */
+ lhui r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ex_lw_tail:
+ /* Get the destination register number into r5 */
+ lbui r5, r0, TOPHYS(ex_reg_op);
+ /* Form load_word jump table offset (lw_table + (8 * regnum)) */
+ la r6, r0, TOPHYS(lw_table);
+ addk r5, r5, r5;
+ addk r5, r5, r5;
+ addk r5, r5, r5;
+ addk r5, r5, r6;
+ bra r5;
+ex_lw_end: /* Exception handling of load word, ends */
+ex_sw:
+ /* Get the destination register number into r5 */
+ lbui r5, r0, TOPHYS(ex_reg_op);
+ /* Form store_word jump table offset (sw_table + (8 * regnum)) */
+ la r6, r0, TOPHYS(sw_table);
+ add r5, r5, r5;
+ add r5, r5, r5;
+ add r5, r5, r5;
+ add r5, r5, r6;
+ bra r5;
+ex_sw_tail:
+ mfs r6, resr;
+ nop
+ andi r6, r6, 0x800; /* Extract ESR[W] */
+ beqi r6, ex_shw;
+ /* Get the word - delay slot */
+ swi r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ /* Store the word, byte-by-byte into destination address */
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ sbi r3, r4, 0;
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_1);
+ sbi r3, r4, 1;
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_2);
+ sbi r3, r4, 2;
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_3);
+ sbi r3, r4, 3;
+ bri ex_handler_done;
+
+ex_shw:
+ /* Store the lower half-word, byte-by-byte into destination address */
+ swi r3, r0, TOPHYS(ex_tmp_data_loc_0);
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_2);
+ sbi r3, r4, 0;
+ lbui r3, r0, TOPHYS(ex_tmp_data_loc_3);
+ sbi r3, r4, 1;
+ex_sw_end: /* Exception handling of store word, ends. */
+
+ex_handler_done:
+ lwi r5, r1, 0 /* RMSR */
+ mts rmsr, r5
+ nop
+ lwi r3, r1, PT_R3
+ lwi r4, r1, PT_R4
+ lwi r5, r1, PT_R5
+ lwi r6, r1, PT_R6
+ lwi r17, r1, PT_R17
+
+ rted r17, 0
+ addik r1, r1, (EX_HANDLER_STACK_SIZ); /* Restore stack frame */
+
+.end _hw_exception_handler
+
+ex_handler_unhandled:
+/* FIXME add handle function for unhandled exception - dump register */
+ bri 0
+
+.section .text
+.align 4
+lw_table:
+lw_r0: R3_TO_LWREG (0);
+lw_r1: LWREG_NOP;
+lw_r2: R3_TO_LWREG (2);
+lw_r3: R3_TO_LWREG_V (3);
+lw_r4: R3_TO_LWREG_V (4);
+lw_r5: R3_TO_LWREG_V (5);
+lw_r6: R3_TO_LWREG_V (6);
+lw_r7: R3_TO_LWREG (7);
+lw_r8: R3_TO_LWREG (8);
+lw_r9: R3_TO_LWREG (9);
+lw_r10: R3_TO_LWREG (10);
+lw_r11: R3_TO_LWREG (11);
+lw_r12: R3_TO_LWREG (12);
+lw_r13: R3_TO_LWREG (13);
+lw_r14: R3_TO_LWREG (14);
+lw_r15: R3_TO_LWREG (15);
+lw_r16: R3_TO_LWREG (16);
+lw_r17: LWREG_NOP;
+lw_r18: R3_TO_LWREG (18);
+lw_r19: R3_TO_LWREG (19);
+lw_r20: R3_TO_LWREG (20);
+lw_r21: R3_TO_LWREG (21);
+lw_r22: R3_TO_LWREG (22);
+lw_r23: R3_TO_LWREG (23);
+lw_r24: R3_TO_LWREG (24);
+lw_r25: R3_TO_LWREG (25);
+lw_r26: R3_TO_LWREG (26);
+lw_r27: R3_TO_LWREG (27);
+lw_r28: R3_TO_LWREG (28);
+lw_r29: R3_TO_LWREG (29);
+lw_r30: R3_TO_LWREG (30);
+lw_r31: R3_TO_LWREG (31);
+
+sw_table:
+sw_r0: SWREG_TO_R3 (0);
+sw_r1: SWREG_NOP;
+sw_r2: SWREG_TO_R3 (2);
+sw_r3: SWREG_TO_R3_V (3);
+sw_r4: SWREG_TO_R3_V (4);
+sw_r5: SWREG_TO_R3_V (5);
+sw_r6: SWREG_TO_R3_V (6);
+sw_r7: SWREG_TO_R3 (7);
+sw_r8: SWREG_TO_R3 (8);
+sw_r9: SWREG_TO_R3 (9);
+sw_r10: SWREG_TO_R3 (10);
+sw_r11: SWREG_TO_R3 (11);
+sw_r12: SWREG_TO_R3 (12);
+sw_r13: SWREG_TO_R3 (13);
+sw_r14: SWREG_TO_R3 (14);
+sw_r15: SWREG_TO_R3 (15);
+sw_r16: SWREG_TO_R3 (16);
+sw_r17: SWREG_NOP;
+sw_r18: SWREG_TO_R3 (18);
+sw_r19: SWREG_TO_R3 (19);
+sw_r20: SWREG_TO_R3 (20);
+sw_r21: SWREG_TO_R3 (21);
+sw_r22: SWREG_TO_R3 (22);
+sw_r23: SWREG_TO_R3 (23);
+sw_r24: SWREG_TO_R3 (24);
+sw_r25: SWREG_TO_R3 (25);
+sw_r26: SWREG_TO_R3 (26);
+sw_r27: SWREG_TO_R3 (27);
+sw_r28: SWREG_TO_R3 (28);
+sw_r29: SWREG_TO_R3 (29);
+sw_r30: SWREG_TO_R3 (30);
+sw_r31: SWREG_TO_R3 (31);
+
+/* Temporary data structures used in the handler */
+.section .data
+.align 4
+ex_tmp_data_loc_0:
+ .byte 0
+ex_tmp_data_loc_1:
+ .byte 0
+ex_tmp_data_loc_2:
+ .byte 0
+ex_tmp_data_loc_3:
+ .byte 0
+ex_reg_op:
+ .byte 0
diff --git a/arch/microblaze/kernel/init_task.c b/arch/microblaze/kernel/init_task.c
new file mode 100644
index 0000000..48eb9fb
--- /dev/null
+++ b/arch/microblaze/kernel/init_task.c
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init_task.h>
+#include <linux/fs.h>
+#include <linux/mqueue.h>
+
+#include <asm/pgtable.h>
+
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct mm_struct init_mm = INIT_MM(init_mm);
+EXPORT_SYMBOL(init_mm);
+
+union thread_union init_thread_union
+ __attribute__((__section__(".data.init_task"))) =
+{ INIT_THREAD_INFO(init_task) };
+
+struct task_struct init_task = INIT_TASK(init_task);
+EXPORT_SYMBOL(init_task);
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
new file mode 100644
index 0000000..a69d3e3
--- /dev/null
+++ b/arch/microblaze/kernel/intc.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/page.h>
+#include <linux/io.h>
+
+#include <asm/prom.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_SELFMOD_INTC
+#include <asm/selfmod.h>
+#define INTC_BASE BARRIER_BASE_ADDR
+#else
+static unsigned int intc_baseaddr;
+#define INTC_BASE intc_baseaddr
+#endif
+
+unsigned int nr_irq;
+
+/* No one else should require these constants, so define them locally here. */
+#define ISR 0x00 /* Interrupt Status Register */
+#define IPR 0x04 /* Interrupt Pending Register */
+#define IER 0x08 /* Interrupt Enable Register */
+#define IAR 0x0c /* Interrupt Acknowledge Register */
+#define SIE 0x10 /* Set Interrupt Enable bits */
+#define CIE 0x14 /* Clear Interrupt Enable bits */
+#define IVR 0x18 /* Interrupt Vector Register */
+#define MER 0x1c /* Master Enable Register */
+
+#define MER_ME (1<<0)
+#define MER_HIE (1<<1)
+
+static void intc_enable_or_unmask(unsigned int irq)
+{
+ pr_debug("enable_or_unmask: %d\n", irq);
+ out_be32(INTC_BASE + SIE, 1 << irq);
+}
+
+static void intc_disable_or_mask(unsigned int irq)
+{
+ pr_debug("disable: %d\n", irq);
+ out_be32(INTC_BASE + CIE, 1 << irq);
+}
+
+static void intc_ack(unsigned int irq)
+{
+ pr_debug("ack: %d\n", irq);
+ out_be32(INTC_BASE + IAR, 1 << irq);
+}
+
+static void intc_mask_ack(unsigned int irq)
+{
+ unsigned long mask = 1 << irq;
+ pr_debug("disable_and_ack: %d\n", irq);
+ out_be32(INTC_BASE + CIE, mask);
+ out_be32(INTC_BASE + IAR, mask);
+}
+
+static void intc_end(unsigned int irq)
+{
+ unsigned long mask = 1 << irq;
+ pr_debug("end: %d\n", irq);
+ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+ out_be32(INTC_BASE + SIE, mask);
+ /* ack level sensitive intr */
+ if (irq_desc[irq].status & IRQ_LEVEL)
+ out_be32(INTC_BASE + IAR, mask);
+ }
+}
+
+static struct irq_chip intc_dev = {
+ .name = "Xilinx INTC",
+ .unmask = intc_enable_or_unmask,
+ .mask = intc_disable_or_mask,
+ .ack = intc_ack,
+ .mask_ack = intc_mask_ack,
+ .end = intc_end,
+};
+
+unsigned int get_irq(struct pt_regs *regs)
+{
+ int irq;
+
+ /*
+ * NOTE: This function is the one that needs to be improved in
+ * order to handle multiple interrupt controllers. It currently
+ * is hardcoded to check for interrupts only on the first INTC.
+ */
+ irq = in_be32(INTC_BASE + IVR);
+ pr_debug("get_irq: %d\n", irq);
+
+ return irq;
+}
+
+void __init init_IRQ(void)
+{
+ u32 i, j, intr_type;
+ struct device_node *intc = NULL;
+#ifdef CONFIG_SELFMOD_INTC
+ unsigned int intc_baseaddr = 0;
+ static int arr_func[] = {
+ (int)&get_irq,
+ (int)&intc_enable_or_unmask,
+ (int)&intc_disable_or_mask,
+ (int)&intc_mask_ack,
+ (int)&intc_ack,
+ (int)&intc_end,
+ 0
+ };
+#endif
+ static char *intc_list[] = {
+ "xlnx,xps-intc-1.00.a",
+ "xlnx,opb-intc-1.00.c",
+ "xlnx,opb-intc-1.00.b",
+ "xlnx,opb-intc-1.00.a",
+ NULL
+ };
+
+ for (j = 0; intc_list[j] != NULL; j++) {
+ intc = of_find_compatible_node(NULL, NULL, intc_list[j]);
+ if (intc)
+ break;
+ }
+
+ intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL);
+ intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
+ nr_irq = *(int *) of_get_property(intc, "xlnx,num-intr-inputs", NULL);
+
+ intr_type =
+ *(int *) of_get_property(intc, "xlnx,kind-of-intr", NULL);
+ if (intr_type >= (1 << nr_irq))
+ printk(KERN_INFO " ERROR: Mishmash in king-of-intr param\n");
+
+#ifdef CONFIG_SELFMOD_INTC
+ selfmod_function((int *) arr_func, intc_baseaddr);
+#endif
+ printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
+ intc_list[j], intc_baseaddr, nr_irq, intr_type);
+
+ /*
+ * Disable all external interrupts until they are
+ * explicity requested.
+ */
+ out_be32(intc_baseaddr + IER, 0);
+
+ /* Acknowledge any pending interrupts just in case. */
+ out_be32(intc_baseaddr + IAR, 0xffffffff);
+
+ /* Turn on the Master Enable. */
+ out_be32(intc_baseaddr + MER, MER_HIE | MER_ME);
+
+ for (i = 0; i < nr_irq; ++i) {
+ if (intr_type & (0x00000001 << i)) {
+ set_irq_chip_and_handler_name(i, &intc_dev,
+ handle_edge_irq, intc_dev.name);
+ irq_desc[i].status &= ~IRQ_LEVEL;
+ } else {
+ set_irq_chip_and_handler_name(i, &intc_dev,
+ handle_level_irq, intc_dev.name);
+ irq_desc[i].status |= IRQ_LEVEL;
+ }
+ }
+}
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
new file mode 100644
index 0000000..f688ee9
--- /dev/null
+++ b/arch/microblaze/kernel/irq.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/hardirq.h>
+#include <linux/interrupt.h>
+#include <linux/irqflags.h>
+#include <linux/seq_file.h>
+#include <linux/kernel_stat.h>
+#include <linux/irq.h>
+
+#include <asm/prom.h>
+
+unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
+{
+ struct of_irq oirq;
+
+ if (of_irq_map_one(dev, index, &oirq))
+ return NO_IRQ;
+
+ return oirq.specifier[0];
+}
+EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
+
+/*
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves.
+ */
+void ack_bad_irq(unsigned int irq)
+{
+ printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
+}
+
+static u32 concurrent_irq;
+
+void do_IRQ(struct pt_regs *regs)
+{
+ unsigned int irq;
+ struct pt_regs *old_regs = set_irq_regs(regs);
+
+ irq_enter();
+ irq = get_irq(regs);
+next_irq:
+ BUG_ON(irq == -1U);
+ generic_handle_irq(irq);
+
+ irq = get_irq(regs);
+ if (irq != -1U) {
+ pr_debug("next irq: %d\n", irq);
+ ++concurrent_irq;
+ goto next_irq;
+ }
+
+ irq_exit();
+ set_irq_regs(old_regs);
+}
+
+int show_interrupts(struct seq_file *p, void *v)
+{
+ int i = *(loff_t *) v, j;
+ struct irqaction *action;
+ unsigned long flags;
+
+ if (i == 0) {
+ seq_printf(p, " ");
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%-8d", j);
+ seq_putc(p, '\n');
+ }
+
+ if (i < nr_irq) {
+ spin_lock_irqsave(&irq_desc[i].lock, flags);
+ action = irq_desc[i].action;
+ if (!action)
+ goto skip;
+ seq_printf(p, "%3d: ", i);
+#ifndef CONFIG_SMP
+ seq_printf(p, "%10u ", kstat_irqs(i));
+#else
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+#endif
+ seq_printf(p, " %8s", irq_desc[i].status &
+ IRQ_LEVEL ? "level" : "edge");
+ seq_printf(p, " %8s", irq_desc[i].chip->name);
+ seq_printf(p, " %s", action->name);
+
+ for (action = action->next; action; action = action->next)
+ seq_printf(p, ", %s", action->name);
+
+ seq_putc(p, '\n');
+skip:
+ spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ }
+ return 0;
+}
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
new file mode 100644
index 0000000..5f71790
--- /dev/null
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/cryptohash.h>
+#include <linux/delay.h>
+#include <linux/in6.h>
+#include <linux/syscalls.h>
+
+#include <asm/checksum.h>
+#include <linux/io.h>
+#include <asm/page.h>
+#include <asm/system.h>
+#include <linux/uaccess.h>
+
+/*
+ * libgcc functions - functions that are used internally by the
+ * compiler... (prototypes are not correct though, but that
+ * doesn't really matter since they're not versioned).
+ */
+extern void __ashldi3(void);
+EXPORT_SYMBOL(__ashldi3);
+extern void __ashrdi3(void);
+EXPORT_SYMBOL(__ashrdi3);
+extern void __divsi3(void);
+EXPORT_SYMBOL(__divsi3);
+extern void __lshrdi3(void);
+EXPORT_SYMBOL(__lshrdi3);
+extern void __modsi3(void);
+EXPORT_SYMBOL(__modsi3);
+extern void __mulsi3(void);
+EXPORT_SYMBOL(__mulsi3);
+extern void __muldi3(void);
+EXPORT_SYMBOL(__muldi3);
+extern void __ucmpdi2(void);
+EXPORT_SYMBOL(__ucmpdi2);
+extern void __udivsi3(void);
+EXPORT_SYMBOL(__udivsi3);
+extern void __umodsi3(void);
+EXPORT_SYMBOL(__umodsi3);
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
new file mode 100644
index 0000000..5141417
--- /dev/null
+++ b/arch/microblaze/kernel/module.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleloader.h>
+#include <linux/kernel.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+
+#include <asm/pgtable.h>
+
+void *module_alloc(unsigned long size)
+{
+ void *ret;
+ ret = (size == 0) ? NULL : vmalloc(size);
+ pr_debug("module_alloc (%08lx@%08lx)\n", size, (unsigned long int)ret);
+ return ret;
+}
+
+void module_free(struct module *module, void *region)
+{
+ pr_debug("module_free(%s,%08lx)\n", module->name,
+ (unsigned long)region);
+ vfree(region);
+}
+
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+ Elf_Shdr *sechdrs,
+ char *secstrings,
+ struct module *mod)
+{
+ return 0;
+}
+
+int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec, struct module *module)
+{
+ printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n",
+ module->name);
+ return -ENOEXEC;
+}
+
+int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec, struct module *module)
+{
+
+ unsigned int i;
+ Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
+ Elf32_Sym *sym;
+ unsigned long int *location;
+ unsigned long int locoffs;
+ unsigned long int value;
+#if __GNUC__ < 4
+ unsigned long int old_value;
+#endif
+
+ pr_debug("Applying add relocation section %u to %u\n",
+ relsec, sechdrs[relsec].sh_info);
+
+ for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
+
+ location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr +
+ rela[i].r_offset;
+ sym = (Elf32_Sym *)sechdrs[symindex].sh_addr +
+ ELF32_R_SYM(rela[i].r_info);
+ value = sym->st_value + rela[i].r_addend;
+
+ switch (ELF32_R_TYPE(rela[i].r_info)) {
+
+ /*
+ * Be careful! mb-gcc / mb-ld splits the relocs between the
+ * text and the reloc table. In general this means we must
+ * read the current contents of (*location), add any offset
+ * then store the result back in
+ */
+
+ case R_MICROBLAZE_32:
+#if __GNUC__ < 4
+ old_value = *location;
+ *location = value + old_value;
+
+ pr_debug("R_MICROBLAZE_32 (%08lx->%08lx)\n",
+ old_value, value);
+#else
+ *location = value;
+#endif
+ break;
+
+ case R_MICROBLAZE_64:
+#if __GNUC__ < 4
+ /* Split relocs only required/used pre gcc4.1.1 */
+ old_value = ((location[0] & 0x0000FFFF) << 16) |
+ (location[1] & 0x0000FFFF);
+ value += old_value;
+#endif
+ location[0] = (location[0] & 0xFFFF0000) |
+ (value >> 16);
+ location[1] = (location[1] & 0xFFFF0000) |
+ (value & 0xFFFF);
+#if __GNUC__ < 4
+ pr_debug("R_MICROBLAZE_64 (%08lx->%08lx)\n",
+ old_value, value);
+#endif
+ break;
+
+ case R_MICROBLAZE_64_PCREL:
+ locoffs = (location[0] & 0xFFFF) << 16 |
+ (location[1] & 0xFFFF);
+ value -= (unsigned long int)(location) + 4 +
+ locoffs;
+ location[0] = (location[0] & 0xFFFF0000) |
+ (value >> 16);
+ location[1] = (location[1] & 0xFFFF0000) |
+ (value & 0xFFFF);
+ pr_debug("R_MICROBLAZE_64_PCREL (%08lx)\n",
+ value);
+ break;
+
+ case R_MICROBLAZE_NONE:
+ pr_debug("R_MICROBLAZE_NONE\n");
+ break;
+
+ default:
+ printk(KERN_ERR "module %s: "
+ "Unknown relocation: %u\n",
+ module->name,
+ ELF32_R_TYPE(rela->r_info));
+ return -ENOEXEC;
+ }
+ }
+ return 0;
+}
+
+int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
+ struct module *module)
+{
+ return 0;
+}
+
+void module_arch_cleanup(struct module *mod)
+{
+}
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
new file mode 100644
index 0000000..9a0f7632
--- /dev/null
+++ b/arch/microblaze/kernel/of_device.c
@@ -0,0 +1,113 @@
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+
+#include <linux/errno.h>
+
+void of_device_make_bus_id(struct of_device *dev)
+{
+ static atomic_t bus_no_reg_magic;
+ struct device_node *node = dev->node;
+ const u32 *reg;
+ u64 addr;
+ int magic;
+
+ /*
+ * For MMIO, get the physical address
+ */
+ reg = of_get_property(node, "reg", NULL);
+ if (reg) {
+ addr = of_translate_address(node, reg);
+ if (addr != OF_BAD_ADDR) {
+ dev_set_name(&dev->dev, "%llx.%s",
+ (unsigned long long)addr, node->name);
+ return;
+ }
+ }
+
+ /*
+ * No BusID, use the node name and add a globally incremented
+ * counter (and pray...)
+ */
+ magic = atomic_add_return(1, &bus_no_reg_magic);
+ dev_set_name(&dev->dev, "%s.%d", node->name, magic - 1);
+}
+EXPORT_SYMBOL(of_device_make_bus_id);
+
+struct of_device *of_device_alloc(struct device_node *np,
+ const char *bus_id,
+ struct device *parent)
+{
+ struct of_device *dev;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ dev->node = of_node_get(np);
+ dev->dev.dma_mask = &dev->dma_mask;
+ dev->dev.parent = parent;
+ dev->dev.release = of_release_dev;
+ dev->dev.archdata.of_node = np;
+
+ if (bus_id)
+ dev_set_name(&dev->dev, bus_id);
+ else
+ of_device_make_bus_id(dev);
+
+ return dev;
+}
+EXPORT_SYMBOL(of_device_alloc);
+
+int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct of_device *ofdev;
+ const char *compat;
+ int seen = 0, cplen, sl;
+
+ if (!dev)
+ return -ENODEV;
+
+ ofdev = to_of_device(dev);
+
+ if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
+ return -ENOMEM;
+
+ /* Since the compatible field can contain pretty much anything
+ * it's not really legal to split it out with commas. We split it
+ * up using a number of environment variables instead. */
+
+ compat = of_get_property(ofdev->node, "compatible", &cplen);
+ while (compat && *compat && cplen > 0) {
+ if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
+ return -ENOMEM;
+
+ sl = strlen(compat) + 1;
+ compat += sl;
+ cplen -= sl;
+ seen++;
+ }
+
+ if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen))
+ return -ENOMEM;
+
+ /* modalias is trickier, we add it in 2 steps */
+ if (add_uevent_var(env, "MODALIAS="))
+ return -ENOMEM;
+ sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1],
+ sizeof(env->buf) - env->buflen);
+ if (sl >= (sizeof(env->buf) - env->buflen))
+ return -ENOMEM;
+ env->buflen += sl;
+
+ return 0;
+}
+EXPORT_SYMBOL(of_device_uevent);
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
new file mode 100644
index 0000000..acf4574
--- /dev/null
+++ b/arch/microblaze/kernel/of_platform.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
+ * <benh@kernel.crashing.org>
+ * and Arnd Bergmann, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#undef DEBUG
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#include <linux/errno.h>
+#include <linux/topology.h>
+#include <asm/atomic.h>
+
+struct bus_type of_platform_bus_type = {
+ .uevent = of_device_uevent,
+};
+EXPORT_SYMBOL(of_platform_bus_type);
+
+static int __init of_bus_driver_init(void)
+{
+ return of_bus_type_init(&of_platform_bus_type, "of_platform");
+}
+postcore_initcall(of_bus_driver_init);
+
+struct of_device *of_platform_device_create(struct device_node *np,
+ const char *bus_id,
+ struct device *parent)
+{
+ struct of_device *dev;
+
+ dev = of_device_alloc(np, bus_id, parent);
+ if (!dev)
+ return NULL;
+
+ dev->dma_mask = 0xffffffffUL;
+ dev->dev.bus = &of_platform_bus_type;
+
+ /* We do not fill the DMA ops for platform devices by default.
+ * This is currently the responsibility of the platform code
+ * to do such, possibly using a device notifier
+ */
+
+ if (of_device_register(dev) != 0) {
+ of_device_free(dev);
+ return NULL;
+ }
+
+ return dev;
+}
+EXPORT_SYMBOL(of_platform_device_create);
+
+/**
+ * of_platform_bus_create - Create an OF device for a bus node and all its
+ * children. Optionally recursively instanciate matching busses.
+ * @bus: device node of the bus to instanciate
+ * @matches: match table, NULL to use the default, OF_NO_DEEP_PROBE to
+ * disallow recursive creation of child busses
+ */
+static int of_platform_bus_create(const struct device_node *bus,
+ const struct of_device_id *matches,
+ struct device *parent)
+{
+ struct device_node *child;
+ struct of_device *dev;
+ int rc = 0;
+
+ for_each_child_of_node(bus, child) {
+ pr_debug(" create child: %s\n", child->full_name);
+ dev = of_platform_device_create(child, NULL, parent);
+ if (dev == NULL)
+ rc = -ENOMEM;
+ else if (!of_match_node(matches, child))
+ continue;
+ if (rc == 0) {
+ pr_debug(" and sub busses\n");
+ rc = of_platform_bus_create(child, matches, &dev->dev);
+ }
+ if (rc) {
+ of_node_put(child);
+ break;
+ }
+ }
+ return rc;
+}
+
+
+/**
+ * of_platform_bus_probe - Probe the device-tree for platform busses
+ * @root: parent of the first level to probe or NULL for the root of the tree
+ * @matches: match table, NULL to use the default
+ * @parent: parent to hook devices from, NULL for toplevel
+ *
+ * Note that children of the provided root are not instanciated as devices
+ * unless the specified root itself matches the bus list and is not NULL.
+ */
+
+int of_platform_bus_probe(struct device_node *root,
+ const struct of_device_id *matches,
+ struct device *parent)
+{
+ struct device_node *child;
+ struct of_device *dev;
+ int rc = 0;
+
+ if (matches == NULL)
+ matches = of_default_bus_ids;
+ if (matches == OF_NO_DEEP_PROBE)
+ return -EINVAL;
+ if (root == NULL)
+ root = of_find_node_by_path("/");
+ else
+ of_node_get(root);
+
+ pr_debug("of_platform_bus_probe()\n");
+ pr_debug(" starting at: %s\n", root->full_name);
+
+ /* Do a self check of bus type, if there's a match, create
+ * children
+ */
+ if (of_match_node(matches, root)) {
+ pr_debug(" root match, create all sub devices\n");
+ dev = of_platform_device_create(root, NULL, parent);
+ if (dev == NULL) {
+ rc = -ENOMEM;
+ goto bail;
+ }
+ pr_debug(" create all sub busses\n");
+ rc = of_platform_bus_create(root, matches, &dev->dev);
+ goto bail;
+ }
+ for_each_child_of_node(root, child) {
+ if (!of_match_node(matches, child))
+ continue;
+
+ pr_debug(" match: %s\n", child->full_name);
+ dev = of_platform_device_create(child, NULL, parent);
+ if (dev == NULL)
+ rc = -ENOMEM;
+ else
+ rc = of_platform_bus_create(child, matches, &dev->dev);
+ if (rc) {
+ of_node_put(child);
+ break;
+ }
+ }
+ bail:
+ of_node_put(root);
+ return rc;
+}
+EXPORT_SYMBOL(of_platform_bus_probe);
+
+static int of_dev_node_match(struct device *dev, void *data)
+{
+ return to_of_device(dev)->node == data;
+}
+
+struct of_device *of_find_device_by_node(struct device_node *np)
+{
+ struct device *dev;
+
+ dev = bus_find_device(&of_platform_bus_type,
+ NULL, np, of_dev_node_match);
+ if (dev)
+ return to_of_device(dev);
+ return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_node);
+
+static int of_dev_phandle_match(struct device *dev, void *data)
+{
+ phandle *ph = data;
+ return to_of_device(dev)->node->linux_phandle == *ph;
+}
+
+struct of_device *of_find_device_by_phandle(phandle ph)
+{
+ struct device *dev;
+
+ dev = bus_find_device(&of_platform_bus_type,
+ NULL, &ph, of_dev_phandle_match);
+ if (dev)
+ return to_of_device(dev);
+ return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_phandle);
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
new file mode 100644
index 0000000..436f26c
--- /dev/null
+++ b/arch/microblaze/kernel/process.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/pm.h>
+#include <linux/tick.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/pgalloc.h>
+
+void show_regs(struct pt_regs *regs)
+{
+ printk(KERN_INFO " Registers dump: mode=%X\r\n", regs->kernel_mode);
+ printk(KERN_INFO " r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n",
+ regs->r1, regs->r2, regs->r3, regs->r4);
+ printk(KERN_INFO " r5=%08lX, r6=%08lX, r7=%08lX, r8=%08lX\n",
+ regs->r5, regs->r6, regs->r7, regs->r8);
+ printk(KERN_INFO " r9=%08lX, r10=%08lX, r11=%08lX, r12=%08lX\n",
+ regs->r9, regs->r10, regs->r11, regs->r12);
+ printk(KERN_INFO " r13=%08lX, r14=%08lX, r15=%08lX, r16=%08lX\n",
+ regs->r13, regs->r14, regs->r15, regs->r16);
+ printk(KERN_INFO " r17=%08lX, r18=%08lX, r19=%08lX, r20=%08lX\n",
+ regs->r17, regs->r18, regs->r19, regs->r20);
+ printk(KERN_INFO " r21=%08lX, r22=%08lX, r23=%08lX, r24=%08lX\n",
+ regs->r21, regs->r22, regs->r23, regs->r24);
+ printk(KERN_INFO " r25=%08lX, r26=%08lX, r27=%08lX, r28=%08lX\n",
+ regs->r25, regs->r26, regs->r27, regs->r28);
+ printk(KERN_INFO " r29=%08lX, r30=%08lX, r31=%08lX, rPC=%08lX\n",
+ regs->r29, regs->r30, regs->r31, regs->pc);
+ printk(KERN_INFO " msr=%08lX, ear=%08lX, esr=%08lX, fsr=%08lX\n",
+ regs->msr, regs->ear, regs->esr, regs->fsr);
+ while (1)
+ ;
+}
+
+void (*pm_idle)(void);
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
+static int hlt_counter = 1;
+
+void disable_hlt(void)
+{
+ hlt_counter++;
+}
+EXPORT_SYMBOL(disable_hlt);
+
+void enable_hlt(void)
+{
+ hlt_counter--;
+}
+EXPORT_SYMBOL(enable_hlt);
+
+static int __init nohlt_setup(char *__unused)
+{
+ hlt_counter = 1;
+ return 1;
+}
+__setup("nohlt", nohlt_setup);
+
+static int __init hlt_setup(char *__unused)
+{
+ hlt_counter = 0;
+ return 1;
+}
+__setup("hlt", hlt_setup);
+
+void default_idle(void)
+{
+ if (!hlt_counter) {
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+ smp_mb__after_clear_bit();
+ local_irq_disable();
+ while (!need_resched())
+ cpu_sleep();
+ local_irq_enable();
+ set_thread_flag(TIF_POLLING_NRFLAG);
+ } else
+ while (!need_resched())
+ cpu_relax();
+}
+
+void cpu_idle(void)
+{
+ set_thread_flag(TIF_POLLING_NRFLAG);
+
+ /* endless idle loop with no priority at all */
+ while (1) {
+ void (*idle)(void) = pm_idle;
+
+ if (!idle)
+ idle = default_idle;
+
+ tick_nohz_stop_sched_tick(1);
+ while (!need_resched())
+ idle();
+ tick_nohz_restart_sched_tick();
+
+ preempt_enable_no_resched();
+ schedule();
+ preempt_disable();
+ check_pgt_cache();
+ }
+}
+
+void flush_thread(void)
+{
+}
+
+int copy_thread(unsigned long clone_flags, unsigned long usp,
+ unsigned long unused,
+ struct task_struct *p, struct pt_regs *regs)
+{
+ struct pt_regs *childregs = task_pt_regs(p);
+ struct thread_info *ti = task_thread_info(p);
+
+ *childregs = *regs;
+ if (user_mode(regs))
+ childregs->r1 = usp;
+ else
+ childregs->r1 = ((unsigned long) ti) + THREAD_SIZE;
+
+ memset(&ti->cpu_context, 0, sizeof(struct cpu_context));
+ ti->cpu_context.r1 = (unsigned long)childregs;
+ ti->cpu_context.msr = (unsigned long)childregs->msr;
+ ti->cpu_context.r15 = (unsigned long)ret_from_fork - 8;
+
+ if (clone_flags & CLONE_SETTLS)
+ ;
+
+ return 0;
+}
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+unsigned long thread_saved_pc(struct task_struct *tsk)
+{
+ struct cpu_context *ctx =
+ &(((struct thread_info *)(tsk->stack))->cpu_context);
+
+ /* Check whether the thread is blocked in resume() */
+ if (in_sched_functions(ctx->r15))
+ return (unsigned long)ctx->r15;
+ else
+ return ctx->r14;
+}
+
+static void kernel_thread_helper(int (*fn)(void *), void *arg)
+{
+ fn(arg);
+ do_exit(-1);
+}
+
+int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+{
+ struct pt_regs regs;
+ int ret;
+
+ memset(®s, 0, sizeof(regs));
+ /* store them in non-volatile registers */
+ regs.r5 = (unsigned long)fn;
+ regs.r6 = (unsigned long)arg;
+ local_save_flags(regs.msr);
+ regs.pc = (unsigned long)kernel_thread_helper;
+ regs.kernel_mode = 1;
+
+ ret = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+ ®s, 0, NULL, NULL);
+
+ return ret;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+/* TBD (used by procfs) */
+ return 0;
+}
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
new file mode 100644
index 0000000..34c4871
--- /dev/null
+++ b/arch/microblaze/kernel/prom.c
@@ -0,0 +1,1146 @@
+/*
+ * Procedures for creating, accessing and interpreting the device tree.
+ *
+ * Paul Mackerras August 1996.
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
+ * {engebret|bergner}@us.ibm.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <stdarg.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/threads.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/stringify.h>
+#include <linux/delay.h>
+#include <linux/initrd.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/kexec.h>
+#include <linux/debugfs.h>
+#include <linux/irq.h>
+#include <linux/lmb.h>
+
+#include <asm/prom.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <linux/io.h>
+#include <asm/system.h>
+#include <asm/mmu.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/pci-bridge.h>
+
+static int __initdata dt_root_addr_cells;
+static int __initdata dt_root_size_cells;
+
+typedef u32 cell_t;
+
+static struct boot_param_header *initial_boot_params;
+
+/* export that to outside world */
+struct device_node *of_chosen;
+
+static inline char *find_flat_dt_string(u32 offset)
+{
+ return ((char *)initial_boot_params) +
+ initial_boot_params->off_dt_strings + offset;
+}
+
+/**
+ * This function is used to scan the flattened device-tree, it is
+ * used to extract the memory informations at boot before we can
+ * unflatten the tree
+ */
+int __init of_scan_flat_dt(int (*it)(unsigned long node,
+ const char *uname, int depth,
+ void *data),
+ void *data)
+{
+ unsigned long p = ((unsigned long)initial_boot_params) +
+ initial_boot_params->off_dt_struct;
+ int rc = 0;
+ int depth = -1;
+
+ do {
+ u32 tag = *((u32 *)p);
+ char *pathp;
+
+ p += 4;
+ if (tag == OF_DT_END_NODE) {
+ depth--;
+ continue;
+ }
+ if (tag == OF_DT_NOP)
+ continue;
+ if (tag == OF_DT_END)
+ break;
+ if (tag == OF_DT_PROP) {
+ u32 sz = *((u32 *)p);
+ p += 8;
+ if (initial_boot_params->version < 0x10)
+ p = _ALIGN(p, sz >= 8 ? 8 : 4);
+ p += sz;
+ p = _ALIGN(p, 4);
+ continue;
+ }
+ if (tag != OF_DT_BEGIN_NODE) {
+ printk(KERN_WARNING "Invalid tag %x scanning flattened"
+ " device tree !\n", tag);
+ return -EINVAL;
+ }
+ depth++;
+ pathp = (char *)p;
+ p = _ALIGN(p + strlen(pathp) + 1, 4);
+ if ((*pathp) == '/') {
+ char *lp, *np;
+ for (lp = NULL, np = pathp; *np; np++)
+ if ((*np) == '/')
+ lp = np+1;
+ if (lp != NULL)
+ pathp = lp;
+ }
+ rc = it(p, pathp, depth, data);
+ if (rc != 0)
+ break;
+ } while (1);
+
+ return rc;
+}
+
+unsigned long __init of_get_flat_dt_root(void)
+{
+ unsigned long p = ((unsigned long)initial_boot_params) +
+ initial_boot_params->off_dt_struct;
+
+ while (*((u32 *)p) == OF_DT_NOP)
+ p += 4;
+ BUG_ON(*((u32 *)p) != OF_DT_BEGIN_NODE);
+ p += 4;
+ return _ALIGN(p + strlen((char *)p) + 1, 4);
+}
+
+/**
+ * This function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+ unsigned long *size)
+{
+ unsigned long p = node;
+
+ do {
+ u32 tag = *((u32 *)p);
+ u32 sz, noff;
+ const char *nstr;
+
+ p += 4;
+ if (tag == OF_DT_NOP)
+ continue;
+ if (tag != OF_DT_PROP)
+ return NULL;
+
+ sz = *((u32 *)p);
+ noff = *((u32 *)(p + 4));
+ p += 8;
+ if (initial_boot_params->version < 0x10)
+ p = _ALIGN(p, sz >= 8 ? 8 : 4);
+
+ nstr = find_flat_dt_string(noff);
+ if (nstr == NULL) {
+ printk(KERN_WARNING "Can't find property index"
+ " name !\n");
+ return NULL;
+ }
+ if (strcmp(name, nstr) == 0) {
+ if (size)
+ *size = sz;
+ return (void *)p;
+ }
+ p += sz;
+ p = _ALIGN(p, 4);
+ } while (1);
+}
+
+int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
+{
+ const char *cp;
+ unsigned long cplen, l;
+
+ cp = of_get_flat_dt_prop(node, "compatible", &cplen);
+ if (cp == NULL)
+ return 0;
+ while (cplen > 0) {
+ if (strncasecmp(cp, compat, strlen(compat)) == 0)
+ return 1;
+ l = strlen(cp) + 1;
+ cp += l;
+ cplen -= l;
+ }
+
+ return 0;
+}
+
+static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
+ unsigned long align)
+{
+ void *res;
+
+ *mem = _ALIGN(*mem, align);
+ res = (void *)*mem;
+ *mem += size;
+
+ return res;
+}
+
+static unsigned long __init unflatten_dt_node(unsigned long mem,
+ unsigned long *p,
+ struct device_node *dad,
+ struct device_node ***allnextpp,
+ unsigned long fpsize)
+{
+ struct device_node *np;
+ struct property *pp, **prev_pp = NULL;
+ char *pathp;
+ u32 tag;
+ unsigned int l, allocl;
+ int has_name = 0;
+ int new_format = 0;
+
+ tag = *((u32 *)(*p));
+ if (tag != OF_DT_BEGIN_NODE) {
+ printk("Weird tag at start of node: %x\n", tag);
+ return mem;
+ }
+ *p += 4;
+ pathp = (char *)*p;
+ l = allocl = strlen(pathp) + 1;
+ *p = _ALIGN(*p + l, 4);
+
+ /* version 0x10 has a more compact unit name here instead of the full
+ * path. we accumulate the full path size using "fpsize", we'll rebuild
+ * it later. We detect this because the first character of the name is
+ * not '/'.
+ */
+ if ((*pathp) != '/') {
+ new_format = 1;
+ if (fpsize == 0) {
+ /* root node: special case. fpsize accounts for path
+ * plus terminating zero. root node only has '/', so
+ * fpsize should be 2, but we want to avoid the first
+ * level nodes to have two '/' so we use fpsize 1 here
+ */
+ fpsize = 1;
+ allocl = 2;
+ } else {
+ /* account for '/' and path size minus terminal 0
+ * already in 'l'
+ */
+ fpsize += l;
+ allocl = fpsize;
+ }
+ }
+
+ np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
+ __alignof__(struct device_node));
+ if (allnextpp) {
+ memset(np, 0, sizeof(*np));
+ np->full_name = ((char *)np) + sizeof(struct device_node);
+ if (new_format) {
+ char *p2 = np->full_name;
+ /* rebuild full path for new format */
+ if (dad && dad->parent) {
+ strcpy(p2, dad->full_name);
+#ifdef DEBUG
+ if ((strlen(p2) + l + 1) != allocl) {
+ pr_debug("%s: p: %d, l: %d, a: %d\n",
+ pathp, (int)strlen(p2),
+ l, allocl);
+ }
+#endif
+ p2 += strlen(p2);
+ }
+ *(p2++) = '/';
+ memcpy(p2, pathp, l);
+ } else
+ memcpy(np->full_name, pathp, l);
+ prev_pp = &np->properties;
+ **allnextpp = np;
+ *allnextpp = &np->allnext;
+ if (dad != NULL) {
+ np->parent = dad;
+ /* we temporarily use the next field as `last_child'*/
+ if (dad->next == NULL)
+ dad->child = np;
+ else
+ dad->next->sibling = np;
+ dad->next = np;
+ }
+ kref_init(&np->kref);
+ }
+ while (1) {
+ u32 sz, noff;
+ char *pname;
+
+ tag = *((u32 *)(*p));
+ if (tag == OF_DT_NOP) {
+ *p += 4;
+ continue;
+ }
+ if (tag != OF_DT_PROP)
+ break;
+ *p += 4;
+ sz = *((u32 *)(*p));
+ noff = *((u32 *)((*p) + 4));
+ *p += 8;
+ if (initial_boot_params->version < 0x10)
+ *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
+
+ pname = find_flat_dt_string(noff);
+ if (pname == NULL) {
+ printk(KERN_INFO
+ "Can't find property name in list !\n");
+ break;
+ }
+ if (strcmp(pname, "name") == 0)
+ has_name = 1;
+ l = strlen(pname) + 1;
+ pp = unflatten_dt_alloc(&mem, sizeof(struct property),
+ __alignof__(struct property));
+ if (allnextpp) {
+ if (strcmp(pname, "linux,phandle") == 0) {
+ np->node = *((u32 *)*p);
+ if (np->linux_phandle == 0)
+ np->linux_phandle = np->node;
+ }
+ if (strcmp(pname, "ibm,phandle") == 0)
+ np->linux_phandle = *((u32 *)*p);
+ pp->name = pname;
+ pp->length = sz;
+ pp->value = (void *)*p;
+ *prev_pp = pp;
+ prev_pp = &pp->next;
+ }
+ *p = _ALIGN((*p) + sz, 4);
+ }
+ /* with version 0x10 we may not have the name property, recreate
+ * it here from the unit name if absent
+ */
+ if (!has_name) {
+ char *p1 = pathp, *ps = pathp, *pa = NULL;
+ int sz;
+
+ while (*p1) {
+ if ((*p1) == '@')
+ pa = p1;
+ if ((*p1) == '/')
+ ps = p1 + 1;
+ p1++;
+ }
+ if (pa < ps)
+ pa = p1;
+ sz = (pa - ps) + 1;
+ pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
+ __alignof__(struct property));
+ if (allnextpp) {
+ pp->name = "name";
+ pp->length = sz;
+ pp->value = pp + 1;
+ *prev_pp = pp;
+ prev_pp = &pp->next;
+ memcpy(pp->value, ps, sz - 1);
+ ((char *)pp->value)[sz - 1] = 0;
+ pr_debug("fixed up name for %s -> %s\n", pathp,
+ (char *)pp->value);
+ }
+ }
+ if (allnextpp) {
+ *prev_pp = NULL;
+ np->name = of_get_property(np, "name", NULL);
+ np->type = of_get_property(np, "device_type", NULL);
+
+ if (!np->name)
+ np->name = "<NULL>";
+ if (!np->type)
+ np->type = "<NULL>";
+ }
+ while (tag == OF_DT_BEGIN_NODE) {
+ mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
+ tag = *((u32 *)(*p));
+ }
+ if (tag != OF_DT_END_NODE) {
+ printk(KERN_INFO "Weird tag at end of node: %x\n", tag);
+ return mem;
+ }
+ *p += 4;
+ return mem;
+}
+
+/**
+ * unflattens the device-tree passed by the firmware, creating the
+ * tree of struct device_node. It also fills the "name" and "type"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used (this used to be done by finish_device_tree)
+ */
+void __init unflatten_device_tree(void)
+{
+ unsigned long start, mem, size;
+ struct device_node **allnextp = &allnodes;
+
+ pr_debug(" -> unflatten_device_tree()\n");
+
+ /* First pass, scan for size */
+ start = ((unsigned long)initial_boot_params) +
+ initial_boot_params->off_dt_struct;
+ size = unflatten_dt_node(0, &start, NULL, NULL, 0);
+ size = (size | 3) + 1;
+
+ pr_debug(" size is %lx, allocating...\n", size);
+
+ /* Allocate memory for the expanded device tree */
+ mem = lmb_alloc(size + 4, __alignof__(struct device_node));
+ mem = (unsigned long) __va(mem);
+
+ ((u32 *)mem)[size / 4] = 0xdeadbeef;
+
+ pr_debug(" unflattening %lx...\n", mem);
+
+ /* Second pass, do actual unflattening */
+ start = ((unsigned long)initial_boot_params) +
+ initial_boot_params->off_dt_struct;
+ unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
+ if (*((u32 *)start) != OF_DT_END)
+ printk(KERN_WARNING "Weird tag at end of tree: %08x\n",
+ *((u32 *)start));
+ if (((u32 *)mem)[size / 4] != 0xdeadbeef)
+ printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
+ ((u32 *)mem)[size / 4]);
+ *allnextp = NULL;
+
+ /* Get pointer to OF "/chosen" node for use everywhere */
+ of_chosen = of_find_node_by_path("/chosen");
+ if (of_chosen == NULL)
+ of_chosen = of_find_node_by_path("/chosen@0");
+
+ pr_debug(" <- unflatten_device_tree()\n");
+}
+
+#define early_init_dt_scan_drconf_memory(node) 0
+
+static int __init early_init_dt_scan_cpus(unsigned long node,
+ const char *uname, int depth,
+ void *data)
+{
+ static int logical_cpuid;
+ char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+ const u32 *intserv;
+ int i, nthreads;
+ int found = 0;
+
+ /* We are scanning "cpu" nodes only */
+ if (type == NULL || strcmp(type, "cpu") != 0)
+ return 0;
+
+ /* Get physical cpuid */
+ intserv = of_get_flat_dt_prop(node, "reg", NULL);
+ nthreads = 1;
+
+ /*
+ * Now see if any of these threads match our boot cpu.
+ * NOTE: This must match the parsing done in smp_setup_cpu_maps.
+ */
+ for (i = 0; i < nthreads; i++) {
+ /*
+ * version 2 of the kexec param format adds the phys cpuid of
+ * booted proc.
+ */
+ if (initial_boot_params && initial_boot_params->version >= 2) {
+ if (intserv[i] ==
+ initial_boot_params->boot_cpuid_phys) {
+ found = 1;
+ break;
+ }
+ } else {
+ /*
+ * Check if it's the boot-cpu, set it's hw index now,
+ * unfortunately this format did not support booting
+ * off secondary threads.
+ */
+ if (of_get_flat_dt_prop(node,
+ "linux,boot-cpu", NULL) != NULL) {
+ found = 1;
+ break;
+ }
+ }
+
+#ifdef CONFIG_SMP
+ /* logical cpu id is always 0 on UP kernels */
+ logical_cpuid++;
+#endif
+ }
+
+ if (found) {
+ pr_debug("boot cpu: logical %d physical %d\n", logical_cpuid,
+ intserv[i]);
+ boot_cpuid = logical_cpuid;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+static void __init early_init_dt_check_for_initrd(unsigned long node)
+{
+ unsigned long l;
+ u32 *prop;
+
+ pr_debug("Looking for initrd properties... ");
+
+ prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
+ if (prop) {
+ initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4));
+
+ prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
+ if (prop) {
+ initrd_end = (unsigned long)
+ __va(of_read_ulong(prop, l/4));
+ initrd_below_start_ok = 1;
+ } else {
+ initrd_start = 0;
+ }
+ }
+
+ pr_debug("initrd_start=0x%lx initrd_end=0x%lx\n",
+ initrd_start, initrd_end);
+}
+#else
+static inline void early_init_dt_check_for_initrd(unsigned long node)
+{
+}
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+static int __init early_init_dt_scan_chosen(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ unsigned long l;
+ char *p;
+
+ pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+ if (depth != 1 ||
+ (strcmp(uname, "chosen") != 0 &&
+ strcmp(uname, "chosen@0") != 0))
+ return 0;
+
+#ifdef CONFIG_KEXEC
+ lprop = (u64 *)of_get_flat_dt_prop(node,
+ "linux,crashkernel-base", NULL);
+ if (lprop)
+ crashk_res.start = *lprop;
+
+ lprop = (u64 *)of_get_flat_dt_prop(node,
+ "linux,crashkernel-size", NULL);
+ if (lprop)
+ crashk_res.end = crashk_res.start + *lprop - 1;
+#endif
+
+ early_init_dt_check_for_initrd(node);
+
+ /* Retreive command line */
+ p = of_get_flat_dt_prop(node, "bootargs", &l);
+ if (p != NULL && l > 0)
+ strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
+
+#ifdef CONFIG_CMDLINE
+ if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
+ strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+ pr_debug("Command line is: %s\n", cmd_line);
+
+ /* break now */
+ return 1;
+}
+
+static int __init early_init_dt_scan_root(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ u32 *prop;
+
+ if (depth != 0)
+ return 0;
+
+ prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
+ dt_root_size_cells = (prop == NULL) ? 1 : *prop;
+ pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
+
+ prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
+ dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
+ pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
+
+ /* break now */
+ return 1;
+}
+
+static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
+{
+ cell_t *p = *cellp;
+
+ *cellp = p + s;
+ return of_read_number(p, s);
+}
+
+static int __init early_init_dt_scan_memory(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+ cell_t *reg, *endp;
+ unsigned long l;
+
+ /* Look for the ibm,dynamic-reconfiguration-memory node */
+/* if (depth == 1 &&
+ strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
+ return early_init_dt_scan_drconf_memory(node);
+*/
+ /* We are scanning "memory" nodes only */
+ if (type == NULL) {
+ /*
+ * The longtrail doesn't have a device_type on the
+ * /memory node, so look for the node called /memory@0.
+ */
+ if (depth != 1 || strcmp(uname, "memory@0") != 0)
+ return 0;
+ } else if (strcmp(type, "memory") != 0)
+ return 0;
+
+ reg = (cell_t *)of_get_flat_dt_prop(node, "linux,usable-memory", &l);
+ if (reg == NULL)
+ reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
+ if (reg == NULL)
+ return 0;
+
+ endp = reg + (l / sizeof(cell_t));
+
+ pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
+ uname, l, reg[0], reg[1], reg[2], reg[3]);
+
+ while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
+ u64 base, size;
+
+ base = dt_mem_next_cell(dt_root_addr_cells, ®);
+ size = dt_mem_next_cell(dt_root_size_cells, ®);
+
+ if (size == 0)
+ continue;
+ pr_debug(" - %llx , %llx\n", (unsigned long long)base,
+ (unsigned long long)size);
+
+ lmb_add(base, size);
+ }
+ return 0;
+}
+
+#ifdef CONFIG_PHYP_DUMP
+/**
+ * phyp_dump_calculate_reserve_size() - reserve variable boot area 5% or arg
+ *
+ * Function to find the largest size we need to reserve
+ * during early boot process.
+ *
+ * It either looks for boot param and returns that OR
+ * returns larger of 256 or 5% rounded down to multiples of 256MB.
+ *
+ */
+static inline unsigned long phyp_dump_calculate_reserve_size(void)
+{
+ unsigned long tmp;
+
+ if (phyp_dump_info->reserve_bootvar)
+ return phyp_dump_info->reserve_bootvar;
+
+ /* divide by 20 to get 5% of value */
+ tmp = lmb_end_of_DRAM();
+ do_div(tmp, 20);
+
+ /* round it down in multiples of 256 */
+ tmp = tmp & ~0x0FFFFFFFUL;
+
+ return (tmp > PHYP_DUMP_RMR_END ? tmp : PHYP_DUMP_RMR_END);
+}
+
+/**
+ * phyp_dump_reserve_mem() - reserve all not-yet-dumped mmemory
+ *
+ * This routine may reserve memory regions in the kernel only
+ * if the system is supported and a dump was taken in last
+ * boot instance or if the hardware is supported and the
+ * scratch area needs to be setup. In other instances it returns
+ * without reserving anything. The memory in case of dump being
+ * active is freed when the dump is collected (by userland tools).
+ */
+static void __init phyp_dump_reserve_mem(void)
+{
+ unsigned long base, size;
+ unsigned long variable_reserve_size;
+
+ if (!phyp_dump_info->phyp_dump_configured) {
+ printk(KERN_ERR "Phyp-dump not supported on this hardware\n");
+ return;
+ }
+
+ if (!phyp_dump_info->phyp_dump_at_boot) {
+ printk(KERN_INFO "Phyp-dump disabled at boot time\n");
+ return;
+ }
+
+ variable_reserve_size = phyp_dump_calculate_reserve_size();
+
+ if (phyp_dump_info->phyp_dump_is_active) {
+ /* Reserve *everything* above RMR.Area freed by userland tools*/
+ base = variable_reserve_size;
+ size = lmb_end_of_DRAM() - base;
+
+ /* XXX crashed_ram_end is wrong, since it may be beyond
+ * the memory_limit, it will need to be adjusted. */
+ lmb_reserve(base, size);
+
+ phyp_dump_info->init_reserve_start = base;
+ phyp_dump_info->init_reserve_size = size;
+ } else {
+ size = phyp_dump_info->cpu_state_size +
+ phyp_dump_info->hpte_region_size +
+ variable_reserve_size;
+ base = lmb_end_of_DRAM() - size;
+ lmb_reserve(base, size);
+ phyp_dump_info->init_reserve_start = base;
+ phyp_dump_info->init_reserve_size = size;
+ }
+}
+#else
+static inline void __init phyp_dump_reserve_mem(void) {}
+#endif /* CONFIG_PHYP_DUMP && CONFIG_PPC_RTAS */
+
+#ifdef CONFIG_EARLY_PRINTK
+/* MS this is Microblaze specifig function */
+static int __init early_init_dt_scan_serial(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ unsigned long l;
+ char *p;
+ int *addr;
+
+ pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+/* find all serial nodes */
+ if (strncmp(uname, "serial", 6) != 0)
+ return 0;
+
+ early_init_dt_check_for_initrd(node);
+
+/* find compatible node with uartlite */
+ p = of_get_flat_dt_prop(node, "compatible", &l);
+ if ((strncmp(p, "xlnx,xps-uartlite", 17) != 0) &&
+ (strncmp(p, "xlnx,opb-uartlite", 17) != 0))
+ return 0;
+
+ addr = of_get_flat_dt_prop(node, "reg", &l);
+ return *addr; /* return address */
+}
+
+/* this function is looking for early uartlite console - Microblaze specific */
+int __init early_uartlite_console(void)
+{
+ return of_scan_flat_dt(early_init_dt_scan_serial, NULL);
+}
+#endif
+
+void __init early_init_devtree(void *params)
+{
+ pr_debug(" -> early_init_devtree(%p)\n", params);
+
+ /* Setup flat device-tree pointer */
+ initial_boot_params = params;
+
+#ifdef CONFIG_PHYP_DUMP
+ /* scan tree to see if dump occured during last boot */
+ of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
+#endif
+
+ /* Retrieve various informations from the /chosen node of the
+ * device-tree, including the platform type, initrd location and
+ * size, TCE reserve, and more ...
+ */
+ of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
+
+ /* Scan memory nodes and rebuild LMBs */
+ lmb_init();
+ of_scan_flat_dt(early_init_dt_scan_root, NULL);
+ of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+
+ /* Save command line for /proc/cmdline and then parse parameters */
+ strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
+ parse_early_param();
+
+ lmb_analyze();
+
+ pr_debug("Phys. mem: %lx\n", (unsigned long) lmb_phys_mem_size());
+
+ pr_debug("Scanning CPUs ...\n");
+
+ /* Retreive CPU related informations from the flat tree
+ * (altivec support, boot CPU ID, ...)
+ */
+ of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
+
+ pr_debug(" <- early_init_devtree()\n");
+}
+
+/**
+ * Indicates whether the root node has a given value in its
+ * compatible property.
+ */
+int machine_is_compatible(const char *compat)
+{
+ struct device_node *root;
+ int rc = 0;
+
+ root = of_find_node_by_path("/");
+ if (root) {
+ rc = of_device_is_compatible(root, compat);
+ of_node_put(root);
+ }
+ return rc;
+}
+EXPORT_SYMBOL(machine_is_compatible);
+
+/*******
+ *
+ * New implementation of the OF "find" APIs, return a refcounted
+ * object, call of_node_put() when done. The device tree and list
+ * are protected by a rw_lock.
+ *
+ * Note that property management will need some locking as well,
+ * this isn't dealt with yet.
+ *
+ *******/
+
+/**
+ * of_find_node_by_phandle - Find a node given a phandle
+ * @handle: phandle of the node to find
+ *
+ * Returns a node pointer with refcount incremented, use
+ * of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_phandle(phandle handle)
+{
+ struct device_node *np;
+
+ read_lock(&devtree_lock);
+ for (np = allnodes; np != NULL; np = np->allnext)
+ if (np->linux_phandle == handle)
+ break;
+ of_node_get(np);
+ read_unlock(&devtree_lock);
+ return np;
+}
+EXPORT_SYMBOL(of_find_node_by_phandle);
+
+/**
+ * of_find_all_nodes - Get next node in global list
+ * @prev: Previous node or NULL to start iteration
+ * of_node_put() will be called on it
+ *
+ * Returns a node pointer with refcount incremented, use
+ * of_node_put() on it when done.
+ */
+struct device_node *of_find_all_nodes(struct device_node *prev)
+{
+ struct device_node *np;
+
+ read_lock(&devtree_lock);
+ np = prev ? prev->allnext : allnodes;
+ for (; np != NULL; np = np->allnext)
+ if (of_node_get(np))
+ break;
+ of_node_put(prev);
+ read_unlock(&devtree_lock);
+ return np;
+}
+EXPORT_SYMBOL(of_find_all_nodes);
+
+/**
+ * of_node_get - Increment refcount of a node
+ * @node: Node to inc refcount, NULL is supported to
+ * simplify writing of callers
+ *
+ * Returns node.
+ */
+struct device_node *of_node_get(struct device_node *node)
+{
+ if (node)
+ kref_get(&node->kref);
+ return node;
+}
+EXPORT_SYMBOL(of_node_get);
+
+static inline struct device_node *kref_to_device_node(struct kref *kref)
+{
+ return container_of(kref, struct device_node, kref);
+}
+
+/**
+ * of_node_release - release a dynamically allocated node
+ * @kref: kref element of the node to be released
+ *
+ * In of_node_put() this function is passed to kref_put()
+ * as the destructor.
+ */
+static void of_node_release(struct kref *kref)
+{
+ struct device_node *node = kref_to_device_node(kref);
+ struct property *prop = node->properties;
+
+ /* We should never be releasing nodes that haven't been detached. */
+ if (!of_node_check_flag(node, OF_DETACHED)) {
+ printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
+ node->full_name);
+ dump_stack();
+ kref_init(&node->kref);
+ return;
+ }
+
+ if (!of_node_check_flag(node, OF_DYNAMIC))
+ return;
+
+ while (prop) {
+ struct property *next = prop->next;
+ kfree(prop->name);
+ kfree(prop->value);
+ kfree(prop);
+ prop = next;
+
+ if (!prop) {
+ prop = node->deadprops;
+ node->deadprops = NULL;
+ }
+ }
+ kfree(node->full_name);
+ kfree(node->data);
+ kfree(node);
+}
+
+/**
+ * of_node_put - Decrement refcount of a node
+ * @node: Node to dec refcount, NULL is supported to
+ * simplify writing of callers
+ *
+ */
+void of_node_put(struct device_node *node)
+{
+ if (node)
+ kref_put(&node->kref, of_node_release);
+}
+EXPORT_SYMBOL(of_node_put);
+
+/*
+ * Plug a device node into the tree and global list.
+ */
+void of_attach_node(struct device_node *np)
+{
+ unsigned long flags;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ np->sibling = np->parent->child;
+ np->allnext = allnodes;
+ np->parent->child = np;
+ allnodes = np;
+ write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/*
+ * "Unplug" a node from the device tree. The caller must hold
+ * a reference to the node. The memory associated with the node
+ * is not freed until its refcount goes to zero.
+ */
+void of_detach_node(struct device_node *np)
+{
+ struct device_node *parent;
+ unsigned long flags;
+
+ write_lock_irqsave(&devtree_lock, flags);
+
+ parent = np->parent;
+ if (!parent)
+ goto out_unlock;
+
+ if (allnodes == np)
+ allnodes = np->allnext;
+ else {
+ struct device_node *prev;
+ for (prev = allnodes;
+ prev->allnext != np;
+ prev = prev->allnext)
+ ;
+ prev->allnext = np->allnext;
+ }
+
+ if (parent->child == np)
+ parent->child = np->sibling;
+ else {
+ struct device_node *prevsib;
+ for (prevsib = np->parent->child;
+ prevsib->sibling != np;
+ prevsib = prevsib->sibling)
+ ;
+ prevsib->sibling = np->sibling;
+ }
+
+ of_node_set_flag(np, OF_DETACHED);
+
+out_unlock:
+ write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/*
+ * Add a property to a node
+ */
+int prom_add_property(struct device_node *np, struct property *prop)
+{
+ struct property **next;
+ unsigned long flags;
+
+ prop->next = NULL;
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (strcmp(prop->name, (*next)->name) == 0) {
+ /* duplicate ! don't insert it */
+ write_unlock_irqrestore(&devtree_lock, flags);
+ return -1;
+ }
+ next = &(*next)->next;
+ }
+ *next = prop;
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to add to proc as well if it was initialized */
+ if (np->pde)
+ proc_device_tree_add_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+/*
+ * Remove a property from a node. Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property. Instead we just move the property
+ * to the "dead properties" list, so it won't be found any more.
+ */
+int prom_remove_property(struct device_node *np, struct property *prop)
+{
+ struct property **next;
+ unsigned long flags;
+ int found = 0;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (*next == prop) {
+ /* found the node */
+ *next = prop->next;
+ prop->next = np->deadprops;
+ np->deadprops = prop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to remove the proc node as well */
+ if (np->pde)
+ proc_device_tree_remove_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+/*
+ * Update a property in a node. Note that we don't actually
+ * remove it, since we have given out who-knows-how-many pointers
+ * to the data using get-property. Instead we just move the property
+ * to the "dead properties" list, and add the new property to the
+ * property list
+ */
+int prom_update_property(struct device_node *np,
+ struct property *newprop,
+ struct property *oldprop)
+{
+ struct property **next;
+ unsigned long flags;
+ int found = 0;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (*next == oldprop) {
+ /* found the node */
+ newprop->next = oldprop->next;
+ *next = newprop;
+ oldprop->next = np->deadprops;
+ np->deadprops = oldprop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to add to proc as well if it was initialized */
+ if (np->pde)
+ proc_device_tree_update_prop(np->pde, newprop, oldprop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
+static struct debugfs_blob_wrapper flat_dt_blob;
+
+static int __init export_flat_device_tree(void)
+{
+ struct dentry *d;
+
+ flat_dt_blob.data = initial_boot_params;
+ flat_dt_blob.size = initial_boot_params->totalsize;
+
+ d = debugfs_create_blob("flat-device-tree", S_IFREG | S_IRUSR,
+ of_debugfs_root, &flat_dt_blob);
+ if (!d)
+ return 1;
+
+ return 0;
+}
+device_initcall(export_flat_device_tree);
+#endif
diff --git a/arch/microblaze/kernel/prom_parse.c b/arch/microblaze/kernel/prom_parse.c
new file mode 100644
index 0000000..ae0352e
--- /dev/null
+++ b/arch/microblaze/kernel/prom_parse.c
@@ -0,0 +1,1025 @@
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/pci_regs.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/etherdevice.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+
+#define PRu64 "%llx"
+
+/* Max address size we deal with */
+#define OF_MAX_ADDR_CELLS 4
+#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
+ (ns) > 0)
+
+static struct of_bus *of_match_bus(struct device_node *np);
+static int __of_address_to_resource(struct device_node *dev,
+ const u32 *addrp, u64 size, unsigned int flags,
+ struct resource *r);
+
+/* Debug utility */
+#ifdef DEBUG
+static void of_dump_addr(const char *s, const u32 *addr, int na)
+{
+ printk(KERN_INFO "%s", s);
+ while (na--)
+ printk(KERN_INFO " %08x", *(addr++));
+ printk(KERN_INFO "\n");
+}
+#else
+static void of_dump_addr(const char *s, const u32 *addr, int na) { }
+#endif
+
+/* Callbacks for bus specific translators */
+struct of_bus {
+ const char *name;
+ const char *addresses;
+ int (*match)(struct device_node *parent);
+ void (*count_cells)(struct device_node *child,
+ int *addrc, int *sizec);
+ u64 (*map)(u32 *addr, const u32 *range,
+ int na, int ns, int pna);
+ int (*translate)(u32 *addr, u64 offset, int na);
+ unsigned int (*get_flags)(const u32 *addr);
+};
+
+/*
+ * Default translator (generic bus)
+ */
+
+static void of_bus_default_count_cells(struct device_node *dev,
+ int *addrc, int *sizec)
+{
+ if (addrc)
+ *addrc = of_n_addr_cells(dev);
+ if (sizec)
+ *sizec = of_n_size_cells(dev);
+}
+
+static u64 of_bus_default_map(u32 *addr, const u32 *range,
+ int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ cp = of_read_number(range, na);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr, na);
+
+ pr_debug("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n",
+ cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_default_translate(u32 *addr, u64 offset, int na)
+{
+ u64 a = of_read_number(addr, na);
+ memset(addr, 0, na * 4);
+ a += offset;
+ if (na > 1)
+ addr[na - 2] = a >> 32;
+ addr[na - 1] = a & 0xffffffffu;
+
+ return 0;
+}
+
+static unsigned int of_bus_default_get_flags(const u32 *addr)
+{
+ return IORESOURCE_MEM;
+}
+
+#ifdef CONFIG_PCI
+/*
+ * PCI bus specific translator
+ */
+
+static int of_bus_pci_match(struct device_node *np)
+{
+ /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */
+ return !strcmp(np->type, "pci") || !strcmp(np->type, "vci");
+}
+
+static void of_bus_pci_count_cells(struct device_node *np,
+ int *addrc, int *sizec)
+{
+ if (addrc)
+ *addrc = 3;
+ if (sizec)
+ *sizec = 2;
+}
+
+static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ /* Check address type match */
+ if ((addr[0] ^ range[0]) & 0x03000000)
+ return OF_BAD_ADDR;
+
+ /* Read address values, skipping high cell */
+ cp = of_read_number(range + 1, na - 1);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr + 1, na - 1);
+
+ pr_debug("OF: PCI map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
+{
+ return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
+{
+ unsigned int flags = 0;
+ u32 w = addr[0];
+
+ switch ((w >> 24) & 0x03) {
+ case 0x01:
+ flags |= IORESOURCE_IO;
+ break;
+ case 0x02: /* 32 bits */
+ case 0x03: /* 64 bits */
+ flags |= IORESOURCE_MEM;
+ break;
+ }
+ if (w & 0x40000000)
+ flags |= IORESOURCE_PREFETCH;
+ return flags;
+}
+
+const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
+ unsigned int *flags)
+{
+ const u32 *prop;
+ unsigned int psize;
+ struct device_node *parent;
+ struct of_bus *bus;
+ int onesize, i, na, ns;
+
+ /* Get parent & match bus type */
+ parent = of_get_parent(dev);
+ if (parent == NULL)
+ return NULL;
+ bus = of_match_bus(parent);
+ if (strcmp(bus->name, "pci")) {
+ of_node_put(parent);
+ return NULL;
+ }
+ bus->count_cells(dev, &na, &ns);
+ of_node_put(parent);
+ if (!OF_CHECK_COUNTS(na, ns))
+ return NULL;
+
+ /* Get "reg" or "assigned-addresses" property */
+ prop = of_get_property(dev, bus->addresses, &psize);
+ if (prop == NULL)
+ return NULL;
+ psize /= 4;
+
+ onesize = na + ns;
+ for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
+ if ((prop[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) {
+ if (size)
+ *size = of_read_number(prop + na, ns);
+ if (flags)
+ *flags = bus->get_flags(prop);
+ return prop;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(of_get_pci_address);
+
+int of_pci_address_to_resource(struct device_node *dev, int bar,
+ struct resource *r)
+{
+ const u32 *addrp;
+ u64 size;
+ unsigned int flags;
+
+ addrp = of_get_pci_address(dev, bar, &size, &flags);
+ if (addrp == NULL)
+ return -EINVAL;
+ return __of_address_to_resource(dev, addrp, size, flags, r);
+}
+EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
+
+static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
+{
+ return (((pin - 1) + slot) % 4) + 1;
+}
+
+int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
+{
+ struct device_node *dn, *ppnode;
+ struct pci_dev *ppdev;
+ u32 lspec;
+ u32 laddr[3];
+ u8 pin;
+ int rc;
+
+ /* Check if we have a device node, if yes, fallback to standard OF
+ * parsing
+ */
+ dn = pci_device_to_OF_node(pdev);
+ if (dn)
+ return of_irq_map_one(dn, 0, out_irq);
+
+ /* Ok, we don't, time to have fun. Let's start by building up an
+ * interrupt spec. we assume #interrupt-cells is 1, which is standard
+ * for PCI. If you do different, then don't use that routine.
+ */
+ rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin);
+ if (rc != 0)
+ return rc;
+ /* No pin, exit */
+ if (pin == 0)
+ return -ENODEV;
+
+ /* Now we walk up the PCI tree */
+ lspec = pin;
+ for (;;) {
+ /* Get the pci_dev of our parent */
+ ppdev = pdev->bus->self;
+
+ /* Ouch, it's a host bridge... */
+ if (ppdev == NULL) {
+ struct pci_controller *host;
+ host = pci_bus_to_host(pdev->bus);
+ ppnode = host ? host->arch_data : NULL;
+ /* No node for host bridge ? give up */
+ if (ppnode == NULL)
+ return -EINVAL;
+ } else
+ /* We found a P2P bridge, check if it has a node */
+ ppnode = pci_device_to_OF_node(ppdev);
+
+ /* Ok, we have found a parent with a device-node, hand over to
+ * the OF parsing code.
+ * We build a unit address from the linux device to be used for
+ * resolution. Note that we use the linux bus number which may
+ * not match your firmware bus numbering.
+ * Fortunately, in most cases, interrupt-map-mask doesn't
+ * include the bus number as part of the matching.
+ * You should still be careful about that though if you intend
+ * to rely on this function (you ship a firmware that doesn't
+ * create device nodes for all PCI devices).
+ */
+ if (ppnode)
+ break;
+
+ /* We can only get here if we hit a P2P bridge with no node,
+ * let's do standard swizzling and try again
+ */
+ lspec = of_irq_pci_swizzle(PCI_SLOT(pdev->devfn), lspec);
+ pdev = ppdev;
+ }
+
+ laddr[0] = (pdev->bus->number << 16)
+ | (pdev->devfn << 8);
+ laddr[1] = laddr[2] = 0;
+ return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq);
+}
+EXPORT_SYMBOL_GPL(of_irq_map_pci);
+#endif /* CONFIG_PCI */
+
+/*
+ * ISA bus specific translator
+ */
+
+static int of_bus_isa_match(struct device_node *np)
+{
+ return !strcmp(np->name, "isa");
+}
+
+static void of_bus_isa_count_cells(struct device_node *child,
+ int *addrc, int *sizec)
+{
+ if (addrc)
+ *addrc = 2;
+ if (sizec)
+ *sizec = 1;
+}
+
+static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
+{
+ u64 cp, s, da;
+
+ /* Check address type match */
+ if ((addr[0] ^ range[0]) & 0x00000001)
+ return OF_BAD_ADDR;
+
+ /* Read address values, skipping high cell */
+ cp = of_read_number(range + 1, na - 1);
+ s = of_read_number(range + na + pna, ns);
+ da = of_read_number(addr + 1, na - 1);
+
+ pr_debug("OF: ISA map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
+
+ if (da < cp || da >= (cp + s))
+ return OF_BAD_ADDR;
+ return da - cp;
+}
+
+static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
+{
+ return of_bus_default_translate(addr + 1, offset, na - 1);
+}
+
+static unsigned int of_bus_isa_get_flags(const u32 *addr)
+{
+ unsigned int flags = 0;
+ u32 w = addr[0];
+
+ if (w & 1)
+ flags |= IORESOURCE_IO;
+ else
+ flags |= IORESOURCE_MEM;
+ return flags;
+}
+
+/*
+ * Array of bus specific translators
+ */
+
+static struct of_bus of_busses[] = {
+#ifdef CONFIG_PCI
+ /* PCI */
+ {
+ .name = "pci",
+ .addresses = "assigned-addresses",
+ .match = of_bus_pci_match,
+ .count_cells = of_bus_pci_count_cells,
+ .map = of_bus_pci_map,
+ .translate = of_bus_pci_translate,
+ .get_flags = of_bus_pci_get_flags,
+ },
+#endif /* CONFIG_PCI */
+ /* ISA */
+ {
+ .name = "isa",
+ .addresses = "reg",
+ .match = of_bus_isa_match,
+ .count_cells = of_bus_isa_count_cells,
+ .map = of_bus_isa_map,
+ .translate = of_bus_isa_translate,
+ .get_flags = of_bus_isa_get_flags,
+ },
+ /* Default */
+ {
+ .name = "default",
+ .addresses = "reg",
+ .match = NULL,
+ .count_cells = of_bus_default_count_cells,
+ .map = of_bus_default_map,
+ .translate = of_bus_default_translate,
+ .get_flags = of_bus_default_get_flags,
+ },
+};
+
+static struct of_bus *of_match_bus(struct device_node *np)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(of_busses); i++)
+ if (!of_busses[i].match || of_busses[i].match(np))
+ return &of_busses[i];
+ BUG();
+ return NULL;
+}
+
+static int of_translate_one(struct device_node *parent, struct of_bus *bus,
+ struct of_bus *pbus, u32 *addr,
+ int na, int ns, int pna)
+{
+ const u32 *ranges;
+ unsigned int rlen;
+ int rone;
+ u64 offset = OF_BAD_ADDR;
+
+ /* Normally, an absence of a "ranges" property means we are
+ * crossing a non-translatable boundary, and thus the addresses
+ * below the current not cannot be converted to CPU physical ones.
+ * Unfortunately, while this is very clear in the spec, it's not
+ * what Apple understood, and they do have things like /uni-n or
+ * /ht nodes with no "ranges" property and a lot of perfectly
+ * useable mapped devices below them. Thus we treat the absence of
+ * "ranges" as equivalent to an empty "ranges" property which means
+ * a 1:1 translation at that level. It's up to the caller not to try
+ * to translate addresses that aren't supposed to be translated in
+ * the first place. --BenH.
+ */
+ ranges = of_get_property(parent, "ranges", (int *) &rlen);
+ if (ranges == NULL || rlen == 0) {
+ offset = of_read_number(addr, na);
+ memset(addr, 0, pna * 4);
+ pr_debug("OF: no ranges, 1:1 translation\n");
+ goto finish;
+ }
+
+ pr_debug("OF: walking ranges...\n");
+
+ /* Now walk through the ranges */
+ rlen /= 4;
+ rone = na + pna + ns;
+ for (; rlen >= rone; rlen -= rone, ranges += rone) {
+ offset = bus->map(addr, ranges, na, ns, pna);
+ if (offset != OF_BAD_ADDR)
+ break;
+ }
+ if (offset == OF_BAD_ADDR) {
+ pr_debug("OF: not found !\n");
+ return 1;
+ }
+ memcpy(addr, ranges + na, 4 * pna);
+
+ finish:
+ of_dump_addr("OF: parent translation for:", addr, pna);
+ pr_debug("OF: with offset: "PRu64"\n", offset);
+
+ /* Translate it into parent bus space */
+ return pbus->translate(addr, offset, pna);
+}
+
+/*
+ * Translate an address from the device-tree into a CPU physical address,
+ * this walks up the tree and applies the various bus mappings on the
+ * way.
+ *
+ * Note: We consider that crossing any level with #size-cells == 0 to mean
+ * that translation is impossible (that is we are not dealing with a value
+ * that can be mapped to a cpu physical address). This is not really specified
+ * that way, but this is traditionally the way IBM at least do things
+ */
+u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
+{
+ struct device_node *parent = NULL;
+ struct of_bus *bus, *pbus;
+ u32 addr[OF_MAX_ADDR_CELLS];
+ int na, ns, pna, pns;
+ u64 result = OF_BAD_ADDR;
+
+ pr_debug("OF: ** translation for device %s **\n", dev->full_name);
+
+ /* Increase refcount at current level */
+ of_node_get(dev);
+
+ /* Get parent & match bus type */
+ parent = of_get_parent(dev);
+ if (parent == NULL)
+ goto bail;
+ bus = of_match_bus(parent);
+
+ /* Cound address cells & copy address locally */
+ bus->count_cells(dev, &na, &ns);
+ if (!OF_CHECK_COUNTS(na, ns)) {
+ printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
+ dev->full_name);
+ goto bail;
+ }
+ memcpy(addr, in_addr, na * 4);
+
+ pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
+ bus->name, na, ns, parent->full_name);
+ of_dump_addr("OF: translating address:", addr, na);
+
+ /* Translate */
+ for (;;) {
+ /* Switch to parent bus */
+ of_node_put(dev);
+ dev = parent;
+ parent = of_get_parent(dev);
+
+ /* If root, we have finished */
+ if (parent == NULL) {
+ pr_debug("OF: reached root node\n");
+ result = of_read_number(addr, na);
+ break;
+ }
+
+ /* Get new parent bus and counts */
+ pbus = of_match_bus(parent);
+ pbus->count_cells(dev, &pna, &pns);
+ if (!OF_CHECK_COUNTS(pna, pns)) {
+ printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
+ dev->full_name);
+ break;
+ }
+
+ pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
+ pbus->name, pna, pns, parent->full_name);
+
+ /* Apply bus translation */
+ if (of_translate_one(dev, bus, pbus, addr, na, ns, pna))
+ break;
+
+ /* Complete the move up one level */
+ na = pna;
+ ns = pns;
+ bus = pbus;
+
+ of_dump_addr("OF: one level translation:", addr, na);
+ }
+ bail:
+ of_node_put(parent);
+ of_node_put(dev);
+
+ return result;
+}
+EXPORT_SYMBOL(of_translate_address);
+
+const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
+ unsigned int *flags)
+{
+ const u32 *prop;
+ unsigned int psize;
+ struct device_node *parent;
+ struct of_bus *bus;
+ int onesize, i, na, ns;
+
+ /* Get parent & match bus type */
+ parent = of_get_parent(dev);
+ if (parent == NULL)
+ return NULL;
+ bus = of_match_bus(parent);
+ bus->count_cells(dev, &na, &ns);
+ of_node_put(parent);
+ if (!OF_CHECK_COUNTS(na, ns))
+ return NULL;
+
+ /* Get "reg" or "assigned-addresses" property */
+ prop = of_get_property(dev, bus->addresses, (int *) &psize);
+ if (prop == NULL)
+ return NULL;
+ psize /= 4;
+
+ onesize = na + ns;
+ for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
+ if (i == index) {
+ if (size)
+ *size = of_read_number(prop + na, ns);
+ if (flags)
+ *flags = bus->get_flags(prop);
+ return prop;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(of_get_address);
+
+static int __of_address_to_resource(struct device_node *dev, const u32 *addrp,
+ u64 size, unsigned int flags,
+ struct resource *r)
+{
+ u64 taddr;
+
+ if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0)
+ return -EINVAL;
+ taddr = of_translate_address(dev, addrp);
+ if (taddr == OF_BAD_ADDR)
+ return -EINVAL;
+ memset(r, 0, sizeof(struct resource));
+ if (flags & IORESOURCE_IO) {
+ unsigned long port;
+ port = -1; /* pci_address_to_pio(taddr); */
+ if (port == (unsigned long)-1)
+ return -EINVAL;
+ r->start = port;
+ r->end = port + size - 1;
+ } else {
+ r->start = taddr;
+ r->end = taddr + size - 1;
+ }
+ r->flags = flags;
+ r->name = dev->name;
+ return 0;
+}
+
+int of_address_to_resource(struct device_node *dev, int index,
+ struct resource *r)
+{
+ const u32 *addrp;
+ u64 size;
+ unsigned int flags;
+
+ addrp = of_get_address(dev, index, &size, &flags);
+ if (addrp == NULL)
+ return -EINVAL;
+ return __of_address_to_resource(dev, addrp, size, flags, r);
+}
+EXPORT_SYMBOL_GPL(of_address_to_resource);
+
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
+ unsigned long *busno, unsigned long *phys, unsigned long *size)
+{
+ const u32 *dma_window;
+ u32 cells;
+ const unsigned char *prop;
+
+ dma_window = dma_window_prop;
+
+ /* busno is always one cell */
+ *busno = *(dma_window++);
+
+ prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
+ if (!prop)
+ prop = of_get_property(dn, "#address-cells", NULL);
+
+ cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
+ *phys = of_read_number(dma_window, cells);
+
+ dma_window += cells;
+
+ prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
+ cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
+ *size = of_read_number(dma_window, cells);
+}
+
+/*
+ * Interrupt remapper
+ */
+
+static unsigned int of_irq_workarounds;
+static struct device_node *of_irq_dflt_pic;
+
+static struct device_node *of_irq_find_parent(struct device_node *child)
+{
+ struct device_node *p;
+ const phandle *parp;
+
+ if (!of_node_get(child))
+ return NULL;
+
+ do {
+ parp = of_get_property(child, "interrupt-parent", NULL);
+ if (parp == NULL)
+ p = of_get_parent(child);
+ else {
+ if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
+ p = of_node_get(of_irq_dflt_pic);
+ else
+ p = of_find_node_by_phandle(*parp);
+ }
+ of_node_put(child);
+ child = p;
+ } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL);
+
+ return p;
+}
+
+/* This doesn't need to be called if you don't have any special workaround
+ * flags to pass
+ */
+void of_irq_map_init(unsigned int flags)
+{
+ of_irq_workarounds = flags;
+
+ /* OldWorld, don't bother looking at other things */
+ if (flags & OF_IMAP_OLDWORLD_MAC)
+ return;
+
+ /* If we don't have phandles, let's try to locate a default interrupt
+ * controller (happens when booting with BootX). We do a first match
+ * here, hopefully, that only ever happens on machines with one
+ * controller.
+ */
+ if (flags & OF_IMAP_NO_PHANDLE) {
+ struct device_node *np;
+
+ for (np = NULL; (np = of_find_all_nodes(np)) != NULL;) {
+ if (of_get_property(np, "interrupt-controller", NULL)
+ == NULL)
+ continue;
+ /* Skip /chosen/interrupt-controller */
+ if (strcmp(np->name, "chosen") == 0)
+ continue;
+ /* It seems like at least one person on this planet
+ * wants to use BootX on a machine with an AppleKiwi
+ * controller which happens to pretend to be an
+ * interrupt controller too.
+ */
+ if (strcmp(np->name, "AppleKiwi") == 0)
+ continue;
+ /* I think we found one ! */
+ of_irq_dflt_pic = np;
+ break;
+ }
+ }
+
+}
+
+int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
+ const u32 *addr, struct of_irq *out_irq)
+{
+ struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
+ const u32 *tmp, *imap, *imask;
+ u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
+ int imaplen, match, i;
+
+ pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],"
+ "ointsize=%d\n",
+ parent->full_name, intspec[0], intspec[1], ointsize);
+
+ ipar = of_node_get(parent);
+
+ /* First get the #interrupt-cells property of the current cursor
+ * that tells us how to interpret the passed-in intspec. If there
+ * is none, we are nice and just walk up the tree
+ */
+ do {
+ tmp = of_get_property(ipar, "#interrupt-cells", NULL);
+ if (tmp != NULL) {
+ intsize = *tmp;
+ break;
+ }
+ tnode = ipar;
+ ipar = of_irq_find_parent(ipar);
+ of_node_put(tnode);
+ } while (ipar);
+ if (ipar == NULL) {
+ pr_debug(" -> no parent found !\n");
+ goto fail;
+ }
+
+ pr_debug("of_irq_map_raw: ipar=%s, size=%d\n",
+ ipar->full_name, intsize);
+
+ if (ointsize != intsize)
+ return -EINVAL;
+
+ /* Look for this #address-cells. We have to implement the old linux
+ * trick of looking for the parent here as some device-trees rely on it
+ */
+ old = of_node_get(ipar);
+ do {
+ tmp = of_get_property(old, "#address-cells", NULL);
+ tnode = of_get_parent(old);
+ of_node_put(old);
+ old = tnode;
+ } while (old && tmp == NULL);
+ of_node_put(old);
+ old = NULL;
+ addrsize = (tmp == NULL) ? 2 : *tmp;
+
+ pr_debug(" -> addrsize=%d\n", addrsize);
+
+ /* Now start the actual "proper" walk of the interrupt tree */
+ while (ipar != NULL) {
+ /* Now check if cursor is an interrupt-controller and if it is
+ * then we are done
+ */
+ if (of_get_property(ipar, "interrupt-controller", NULL) !=
+ NULL) {
+ pr_debug(" -> got it !\n");
+ memcpy(out_irq->specifier, intspec,
+ intsize * sizeof(u32));
+ out_irq->size = intsize;
+ out_irq->controller = ipar;
+ of_node_put(old);
+ return 0;
+ }
+
+ /* Now look for an interrupt-map */
+ imap = of_get_property(ipar, "interrupt-map", &imaplen);
+ /* No interrupt map, check for an interrupt parent */
+ if (imap == NULL) {
+ pr_debug(" -> no map, getting parent\n");
+ newpar = of_irq_find_parent(ipar);
+ goto skiplevel;
+ }
+ imaplen /= sizeof(u32);
+
+ /* Look for a mask */
+ imask = of_get_property(ipar, "interrupt-map-mask", NULL);
+
+ /* If we were passed no "reg" property and we attempt to parse
+ * an interrupt-map, then #address-cells must be 0.
+ * Fail if it's not.
+ */
+ if (addr == NULL && addrsize != 0) {
+ pr_debug(" -> no reg passed in when needed !\n");
+ goto fail;
+ }
+
+ /* Parse interrupt-map */
+ match = 0;
+ while (imaplen > (addrsize + intsize + 1) && !match) {
+ /* Compare specifiers */
+ match = 1;
+ for (i = 0; i < addrsize && match; ++i) {
+ u32 mask = imask ? imask[i] : 0xffffffffu;
+ match = ((addr[i] ^ imap[i]) & mask) == 0;
+ }
+ for (; i < (addrsize + intsize) && match; ++i) {
+ u32 mask = imask ? imask[i] : 0xffffffffu;
+ match =
+ ((intspec[i-addrsize] ^ imap[i])
+ & mask) == 0;
+ }
+ imap += addrsize + intsize;
+ imaplen -= addrsize + intsize;
+
+ pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
+
+ /* Get the interrupt parent */
+ if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
+ newpar = of_node_get(of_irq_dflt_pic);
+ else
+ newpar =
+ of_find_node_by_phandle((phandle)*imap);
+ imap++;
+ --imaplen;
+
+ /* Check if not found */
+ if (newpar == NULL) {
+ pr_debug(" -> imap parent not found !\n");
+ goto fail;
+ }
+
+ /* Get #interrupt-cells and #address-cells of new
+ * parent
+ */
+ tmp = of_get_property(newpar, "#interrupt-cells", NULL);
+ if (tmp == NULL) {
+ pr_debug(" -> parent lacks "
+ "#interrupt-cells!\n");
+ goto fail;
+ }
+ newintsize = *tmp;
+ tmp = of_get_property(newpar, "#address-cells", NULL);
+ newaddrsize = (tmp == NULL) ? 0 : *tmp;
+
+ pr_debug(" -> newintsize=%d, newaddrsize=%d\n",
+ newintsize, newaddrsize);
+
+ /* Check for malformed properties */
+ if (imaplen < (newaddrsize + newintsize))
+ goto fail;
+
+ imap += newaddrsize + newintsize;
+ imaplen -= newaddrsize + newintsize;
+
+ pr_debug(" -> imaplen=%d\n", imaplen);
+ }
+ if (!match)
+ goto fail;
+
+ of_node_put(old);
+ old = of_node_get(newpar);
+ addrsize = newaddrsize;
+ intsize = newintsize;
+ intspec = imap - intsize;
+ addr = intspec - addrsize;
+
+skiplevel:
+ /* Iterate again with new parent */
+ pr_debug(" -> new parent: %s\n",
+ newpar ? newpar->full_name : "<>");
+ of_node_put(ipar);
+ ipar = newpar;
+ newpar = NULL;
+ }
+fail:
+ of_node_put(ipar);
+ of_node_put(old);
+ of_node_put(newpar);
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(of_irq_map_raw);
+
+int of_irq_map_one(struct device_node *device,
+ int index, struct of_irq *out_irq)
+{
+ struct device_node *p;
+ const u32 *intspec, *tmp, *addr;
+ u32 intsize, intlen;
+ int res;
+
+ pr_debug("of_irq_map_one: dev=%s, index=%d\n",
+ device->full_name, index);
+
+ /* Get the interrupts property */
+ intspec = of_get_property(device, "interrupts", (int *) &intlen);
+ if (intspec == NULL)
+ return -EINVAL;
+ intlen /= sizeof(u32);
+
+ pr_debug(" intspec=%d intlen=%d\n", *intspec, intlen);
+
+ /* Get the reg property (if any) */
+ addr = of_get_property(device, "reg", NULL);
+
+ /* Look for the interrupt parent. */
+ p = of_irq_find_parent(device);
+ if (p == NULL)
+ return -EINVAL;
+
+ /* Get size of interrupt specifier */
+ tmp = of_get_property(p, "#interrupt-cells", NULL);
+ if (tmp == NULL) {
+ of_node_put(p);
+ return -EINVAL;
+ }
+ intsize = *tmp;
+
+ pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
+
+ /* Check index */
+ if ((index + 1) * intsize > intlen)
+ return -EINVAL;
+
+ /* Get new specifier and map it */
+ res = of_irq_map_raw(p, intspec + index * intsize, intsize,
+ addr, out_irq);
+ of_node_put(p);
+ return res;
+}
+EXPORT_SYMBOL_GPL(of_irq_map_one);
+
+/**
+ * Search the device tree for the best MAC address to use. 'mac-address' is
+ * checked first, because that is supposed to contain to "most recent" MAC
+ * address. If that isn't set, then 'local-mac-address' is checked next,
+ * because that is the default address. If that isn't set, then the obsolete
+ * 'address' is checked, just in case we're using an old device tree.
+ *
+ * Note that the 'address' property is supposed to contain a virtual address of
+ * the register set, but some DTS files have redefined that property to be the
+ * MAC address.
+ *
+ * All-zero MAC addresses are rejected, because those could be properties that
+ * exist in the device tree, but were not set by U-Boot. For example, the
+ * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
+ * addresses. Some older U-Boots only initialized 'local-mac-address'. In
+ * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
+ * but is all zeros.
+*/
+const void *of_get_mac_address(struct device_node *np)
+{
+ struct property *pp;
+
+ pp = of_find_property(np, "mac-address", NULL);
+ if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+ return pp->value;
+
+ pp = of_find_property(np, "local-mac-address", NULL);
+ if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+ return pp->value;
+
+ pp = of_find_property(np, "address", NULL);
+ if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
+ return pp->value;
+
+ return NULL;
+}
+EXPORT_SYMBOL(of_get_mac_address);
+
+int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
+{
+ struct of_irq out_irq;
+ int irq;
+ int res;
+
+ res = of_irq_map_one(dev, index, &out_irq);
+
+ /* Get irq for the device */
+ if (res) {
+ pr_debug("IRQ not found... code = %d", res);
+ return NO_IRQ;
+ }
+ /* Assuming single interrupt controller... */
+ irq = out_irq.specifier[0];
+
+ pr_debug("IRQ found = %d", irq);
+
+ /* Only dereference the resource if both the
+ * resource and the irq are valid. */
+ if (r && irq != NO_IRQ) {
+ r->start = r->end = irq;
+ r->flags = IORESOURCE_IRQ;
+ }
+
+ return irq;
+}
+EXPORT_SYMBOL_GPL(of_irq_to_resource);
+
+void __iomem *of_iomap(struct device_node *np, int index)
+{
+ struct resource res;
+
+ if (of_address_to_resource(np, index, &res))
+ return NULL;
+
+ return ioremap(res.start, 1 + res.end - res.start);
+}
+EXPORT_SYMBOL(of_iomap);
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
new file mode 100644
index 0000000..b86aa62
--- /dev/null
+++ b/arch/microblaze/kernel/ptrace.c
@@ -0,0 +1,181 @@
+/*
+ * `ptrace' system call
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2004-2007 John Williams <john.williams@petalogix.com>
+ *
+ * derived from arch/v850/kernel/ptrace.c
+ *
+ * Copyright (C) 2002,03 NEC Electronics Corporation
+ * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
+ *
+ * Derived from arch/mips/kernel/ptrace.c:
+ *
+ * Copyright (C) 1992 Ross Biro
+ * Copyright (C) Linus Torvalds
+ * Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle
+ * Copyright (C) 1996 David S. Miller
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999 MIPS Technologies, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/ptrace.h>
+#include <linux/signal.h>
+
+#include <linux/errno.h>
+#include <asm/processor.h>
+#include <linux/uaccess.h>
+#include <asm/asm-offsets.h>
+
+/* Returns the address where the register at REG_OFFS in P is stashed away. */
+static microblaze_reg_t *reg_save_addr(unsigned reg_offs,
+ struct task_struct *t)
+{
+ struct pt_regs *regs;
+
+ /*
+ * Three basic cases:
+ *
+ * (1) A register normally saved before calling the scheduler, is
+ * available in the kernel entry pt_regs structure at the top
+ * of the kernel stack. The kernel trap/irq exit path takes
+ * care to save/restore almost all registers for ptrace'd
+ * processes.
+ *
+ * (2) A call-clobbered register, where the process P entered the
+ * kernel via [syscall] trap, is not stored anywhere; that's
+ * OK, because such registers are not expected to be preserved
+ * when the trap returns anyway (so we don't actually bother to
+ * test for this case).
+ *
+ * (3) A few registers not used at all by the kernel, and so
+ * normally never saved except by context-switches, are in the
+ * context switch state.
+ */
+
+ /* Register saved during kernel entry (or not available). */
+ regs = task_pt_regs(t);
+
+ return (microblaze_reg_t *)((char *)regs + reg_offs);
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+ int rval;
+ unsigned long val = 0;
+ unsigned long copied;
+
+ switch (request) {
+ case PTRACE_PEEKTEXT: /* read word at location addr. */
+ case PTRACE_PEEKDATA:
+ pr_debug("PEEKTEXT/PEEKDATA at %08lX\n", addr);
+ copied = access_process_vm(child, addr, &val, sizeof(val), 0);
+ rval = -EIO;
+ if (copied != sizeof(val))
+ break;
+ rval = put_user(val, (unsigned long *)data);
+ break;
+
+ case PTRACE_POKETEXT: /* write the word at location addr. */
+ case PTRACE_POKEDATA:
+ pr_debug("POKETEXT/POKEDATA to %08lX\n", addr);
+ rval = 0;
+ if (access_process_vm(child, addr, &data, sizeof(data), 1)
+ == sizeof(data))
+ break;
+ rval = -EIO;
+ break;
+
+ /* Read/write the word at location ADDR in the registers. */
+ case PTRACE_PEEKUSR:
+ case PTRACE_POKEUSR:
+ pr_debug("PEEKUSR/POKEUSR : 0x%08lx\n", addr);
+ rval = 0;
+ if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
+ /*
+ * Special requests that don't actually correspond
+ * to offsets in struct pt_regs.
+ */
+ if (addr == PT_TEXT_ADDR) {
+ val = child->mm->start_code;
+ } else if (addr == PT_DATA_ADDR) {
+ val = child->mm->start_data;
+ } else if (addr == PT_TEXT_LEN) {
+ val = child->mm->end_code
+ - child->mm->start_code;
+ } else {
+ rval = -EIO;
+ }
+ } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
+ microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
+ if (request == PTRACE_PEEKUSR)
+ val = *reg_addr;
+ else
+ *reg_addr = data;
+ } else
+ rval = -EIO;
+
+ if (rval == 0 && request == PTRACE_PEEKUSR)
+ rval = put_user(val, (unsigned long *)data);
+ break;
+ /* Continue and stop at next (return from) syscall */
+ case PTRACE_SYSCALL:
+ pr_debug("PTRACE_SYSCALL\n");
+ case PTRACE_SINGLESTEP:
+ pr_debug("PTRACE_SINGLESTEP\n");
+ /* Restart after a signal. */
+ case PTRACE_CONT:
+ pr_debug("PTRACE_CONT\n");
+ rval = -EIO;
+ if (!valid_signal(data))
+ break;
+
+ if (request == PTRACE_SYSCALL)
+ set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+ else
+ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+
+ child->exit_code = data;
+ pr_debug("wakeup_process\n");
+ wake_up_process(child);
+ rval = 0;
+ break;
+
+ /*
+ * make the child exit. Best I can do is send it a sigkill.
+ * perhaps it should be put in the status that it wants to
+ * exit.
+ */
+ case PTRACE_KILL:
+ pr_debug("PTRACE_KILL\n");
+ rval = 0;
+ if (child->exit_state == EXIT_ZOMBIE) /* already dead */
+ break;
+ child->exit_code = SIGKILL;
+ wake_up_process(child);
+ break;
+
+ case PTRACE_DETACH: /* detach a process that was attached. */
+ pr_debug("PTRACE_DETACH\n");
+ rval = ptrace_detach(child, data);
+ break;
+ default:
+ /* rval = ptrace_request(child, request, addr, data); noMMU */
+ rval = -EIO;
+ }
+ return rval;
+}
+
+void ptrace_disable(struct task_struct *child)
+{
+ /* nothing to do */
+}
diff --git a/arch/microblaze/kernel/selfmod.c b/arch/microblaze/kernel/selfmod.c
new file mode 100644
index 0000000..89508bd
--- /dev/null
+++ b/arch/microblaze/kernel/selfmod.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2009 PetaLogix
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/interrupt.h>
+#include <asm/selfmod.h>
+
+#undef DEBUG
+
+#if __GNUC__ > 3
+#error GCC 4 unsupported SELFMOD. Please disable SELFMOD from menuconfig.
+#endif
+
+#define OPCODE_IMM 0xB0000000
+#define OPCODE_LWI 0xE8000000
+#define OPCODE_LWI_MASK 0xEC000000
+#define OPCODE_RTSD 0xB60F0008 /* return from func: rtsd r15, 8 */
+#define OPCODE_ADDIK 0x30000000
+#define OPCODE_ADDIK_MASK 0xFC000000
+
+#define IMM_BASE (OPCODE_IMM | (BARRIER_BASE_ADDR >> 16))
+#define LWI_BASE (OPCODE_LWI | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define LWI_BASE_MASK (OPCODE_LWI_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define ADDIK_BASE (OPCODE_ADDIK | (BARRIER_BASE_ADDR & 0x0000ff00))
+#define ADDIK_BASE_MASK (OPCODE_ADDIK_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
+
+#define MODIFY_INSTR { \
+ pr_debug("%s: curr instr, (%d):0x%x, next(%d):0x%x\n", \
+ __func__, i, addr[i], i + 1, addr[i + 1]); \
+ addr[i] = OPCODE_IMM + (base >> 16); \
+ /* keep instruction opcode and add only last 16bits */ \
+ addr[i + 1] = (addr[i + 1] & 0xffff00ff) + (base & 0xffff); \
+ __invalidate_icache(addr[i]); \
+ __invalidate_icache(addr[i + 1]); \
+ pr_debug("%s: hack instr, (%d):0x%x, next(%d):0x%x\n", \
+ __func__, i, addr[i], i + 1, addr[i + 1]); }
+
+/* NOTE
+ * self-modified part of code for improvement of interrupt controller
+ * save instruction in interrupt rutine
+ */
+void selfmod_function(const int *arr_fce, const unsigned int base)
+{
+ unsigned int flags, i, j, *addr = NULL;
+
+ local_irq_save(flags);
+ __disable_icache();
+
+ /* zero terminated array */
+ for (j = 0; arr_fce[j] != 0; j++) {
+ /* get start address of function */
+ addr = (unsigned int *) arr_fce[j];
+ pr_debug("%s: func(%d) at 0x%x\n",
+ __func__, j, (unsigned int) addr);
+ for (i = 0; ; i++) {
+ pr_debug("%s: instruction code at %d: 0x%x\n",
+ __func__, i, addr[i]);
+ if (addr[i] == IMM_BASE) {
+ /* detecting of lwi (0xE8) or swi (0xF8) instr
+ * I can detect both opcode with one mask */
+ if ((addr[i + 1] & LWI_BASE_MASK) == LWI_BASE) {
+ MODIFY_INSTR;
+ } else /* detection addik for ack */
+ if ((addr[i + 1] & ADDIK_BASE_MASK) ==
+ ADDIK_BASE) {
+ MODIFY_INSTR;
+ }
+ } else if (addr[i] == OPCODE_RTSD) {
+ /* return from function means end of function */
+ pr_debug("%s: end of array %d\n", __func__, i);
+ break;
+ }
+ }
+ }
+ local_irq_restore(flags);
+} /* end of self-modified code */
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
new file mode 100644
index 0000000..eb6b417
--- /dev/null
+++ b/arch/microblaze/kernel/setup.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/cpu.h>
+#include <linux/initrd.h>
+#include <linux/console.h>
+#include <linux/debugfs.h>
+
+#include <asm/setup.h>
+#include <asm/sections.h>
+#include <asm/page.h>
+#include <linux/io.h>
+#include <linux/bug.h>
+#include <linux/param.h>
+#include <linux/cache.h>
+#include <asm/cacheflush.h>
+#include <asm/entry.h>
+#include <asm/cpuinfo.h>
+
+#include <asm/system.h>
+#include <asm/prom.h>
+#include <asm/pgtable.h>
+
+DEFINE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
+DEFINE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
+DEFINE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
+DEFINE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
+DEFINE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
+
+unsigned int boot_cpuid;
+char cmd_line[COMMAND_LINE_SIZE];
+
+void __init setup_arch(char **cmdline_p)
+{
+#ifdef CONFIG_CMDLINE_FORCE
+ strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+ strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif
+ *cmdline_p = cmd_line;
+
+ console_verbose();
+
+ unflatten_device_tree();
+
+ /* NOTE I think that this function is not necessary to call */
+ /* irq_early_init(); */
+ setup_cpuinfo();
+
+ __invalidate_icache_all();
+ __enable_icache();
+
+ __invalidate_dcache_all();
+ __enable_dcache();
+
+ panic_timeout = 120;
+
+ setup_memory();
+
+#if defined(CONFIG_SELFMOD_INTC) || defined(CONFIG_SELFMOD_TIMER)
+ printk(KERN_NOTICE "Self modified code enable\n");
+#endif
+
+#ifdef CONFIG_VT
+#if defined(CONFIG_XILINX_CONSOLE)
+ conswitchp = &xil_con;
+#elif defined(CONFIG_DUMMY_CONSOLE)
+ conswitchp = &dummy_con;
+#endif
+#endif
+}
+
+#ifdef CONFIG_MTD_UCLINUX
+/* Handle both romfs and cramfs types, without generating unnecessary
+ code (ie no point checking for CRAMFS if it's not even enabled) */
+inline unsigned get_romfs_len(unsigned *addr)
+{
+#ifdef CONFIG_ROMFS_FS
+ if (memcmp(&addr[0], "-rom1fs-", 8) == 0) /* romfs */
+ return be32_to_cpu(addr[2]);
+#endif
+
+#ifdef CONFIG_CRAMFS
+ if (addr[0] == le32_to_cpu(0x28cd3d45)) /* cramfs */
+ return le32_to_cpu(addr[1]);
+#endif
+ return 0;
+}
+#endif /* CONFIG_MTD_UCLINUX_EBSS */
+
+void __init machine_early_init(const char *cmdline, unsigned int ram,
+ unsigned int fdt)
+{
+ unsigned long *src, *dst = (unsigned long *)0x0;
+
+/* clearing bss section */
+ memset(__bss_start, 0, __bss_stop-__bss_start);
+ memset(_ssbss, 0, _esbss-_ssbss);
+
+ /*
+ * Copy command line passed from bootloader, or use default
+ * if none provided, or forced
+ */
+#ifndef CONFIG_CMDLINE_BOOL
+ if (cmdline && cmdline[0] != '\0')
+ strlcpy(cmd_line, cmdline, COMMAND_LINE_SIZE);
+#endif
+
+/* initialize device tree for usage in early_printk */
+ early_init_devtree((void *)_fdt_start);
+
+#ifdef CONFIG_EARLY_PRINTK
+ setup_early_printk(NULL);
+#endif
+
+ early_printk("Ramdisk addr 0x%08x, FDT 0x%08x\n", ram, fdt);
+ printk(KERN_NOTICE "Found FDT at 0x%08x\n", fdt);
+
+#ifdef CONFIG_MTD_UCLINUX
+ {
+ int size;
+ unsigned int romfs_base;
+ romfs_base = (ram ? ram : (unsigned int)&__init_end);
+ /* if CONFIG_MTD_UCLINUX_EBSS is defined, assume ROMFS is at the
+ * end of kernel, which is ROMFS_LOCATION defined above. */
+ size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base));
+ early_printk("Found romfs @ 0x%08x (0x%08x)\n",
+ romfs_base, size);
+ early_printk("#### klimit %p ####\n", klimit);
+ BUG_ON(size < 0); /* What else can we do? */
+
+ /* Use memmove to handle likely case of memory overlap */
+ early_printk("Moving 0x%08x bytes from 0x%08x to 0x%08x\n",
+ size, romfs_base, (unsigned)&_ebss);
+ memmove(&_ebss, (int *)romfs_base, size);
+
+ /* update klimit */
+ klimit += PAGE_ALIGN(size);
+ early_printk("New klimit: 0x%08x\n", (unsigned)klimit);
+ }
+#endif
+
+ for (src = __ivt_start; src < __ivt_end; src++, dst++)
+ *dst = *src;
+
+ /* Initialize global data */
+ per_cpu(KM, 0) = 0x1; /* We start in kernel mode */
+ per_cpu(CURRENT_SAVE, 0) = (unsigned long)current;
+}
+
+#ifdef CONFIG_DEBUG_FS
+struct dentry *of_debugfs_root;
+
+static int microblaze_debugfs_init(void)
+{
+ of_debugfs_root = debugfs_create_dir("microblaze", NULL);
+
+ return of_debugfs_root == NULL;
+}
+arch_initcall(microblaze_debugfs_init);
+#endif
+
+void machine_restart(char *cmd)
+{
+ printk(KERN_NOTICE "Machine restart...\n");
+ dump_stack();
+ while (1)
+ ;
+}
+
+void machine_shutdown(void)
+{
+ printk(KERN_NOTICE "Machine shutdown...\n");
+ while (1)
+ ;
+}
+
+void machine_halt(void)
+{
+ printk(KERN_NOTICE "Machine halt...\n");
+ while (1)
+ ;
+}
+
+void machine_power_off(void)
+{
+ printk(KERN_NOTICE "Machine power off...\n");
+ while (1)
+ ;
+}
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
new file mode 100644
index 0000000..3889cf4
--- /dev/null
+++ b/arch/microblaze/kernel/signal.c
@@ -0,0 +1,537 @@
+/*
+ * Signal handling
+ *
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2003,2004 John Williams <jwilliams@itee.uq.edu.au>
+ * Copyright (C) 2001 NEC Corporation
+ * Copyright (C) 2001 Miles Bader <miles@gnu.org>
+ * Copyright (C) 1999,2000 Niibe Yutaka & Kaz Kojima
+ * Copyright (C) 1991,1992 Linus Torvalds
+ *
+ * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
+ *
+ * This file was was derived from the sh version, arch/sh/kernel/signal.c
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/personality.h>
+#include <linux/percpu.h>
+#include <linux/linkage.h>
+#include <asm/entry.h>
+#include <asm/ucontext.h>
+#include <linux/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/pgalloc.h>
+#include <linux/syscalls.h>
+#include <asm/cacheflush.h>
+#include <asm/syscalls.h>
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_sycall);
+
+/*
+ * Atomically swap in the new signal mask, and wait for a signal.
+ */
+asmlinkage int
+sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs)
+{
+ sigset_t saveset;
+
+ mask &= _BLOCKABLE;
+ spin_lock_irq(¤t->sighand->siglock);
+ saveset = current->blocked;
+ siginitset(¤t->blocked, mask);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ regs->r3 = -EINTR;
+ while (1) {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+ if (do_signal(regs, &saveset, 1))
+ return -EINTR;
+ }
+}
+
+asmlinkage int
+sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
+ struct pt_regs *regs)
+{
+ sigset_t saveset, newset;
+
+ /* XXX: Don't preclude handling different sized sigset_t's. */
+ if (sigsetsize != sizeof(sigset_t))
+ return -EINVAL;
+
+ if (copy_from_user(&newset, unewset, sizeof(newset)))
+ return -EFAULT;
+ sigdelsetmask(&newset, ~_BLOCKABLE);
+ spin_lock_irq(¤t->sighand->siglock);
+ saveset = current->blocked;
+ current->blocked = newset;
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ regs->r3 = -EINTR;
+ while (1) {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+ if (do_signal(regs, &saveset, 1))
+ return -EINTR;
+ }
+}
+
+asmlinkage int
+sys_sigaction(int sig, const struct old_sigaction *act,
+ struct old_sigaction *oact)
+{
+ struct k_sigaction new_ka, old_ka;
+ int ret;
+
+ if (act) {
+ old_sigset_t mask;
+ if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+ __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+ __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+ return -EFAULT;
+ __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+ __get_user(mask, &act->sa_mask);
+ siginitset(&new_ka.sa.sa_mask, mask);
+ }
+
+ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+ if (!ret && oact) {
+ if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+ __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+ __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+ return -EFAULT;
+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+ }
+
+ return ret;
+}
+
+asmlinkage int
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+ struct pt_regs *regs)
+{
+ return do_sigaltstack(uss, uoss, regs->r1);
+}
+
+/*
+ * Do a signal return; undo the signal stack.
+ */
+
+struct sigframe {
+ struct sigcontext sc;
+ unsigned long extramask[_NSIG_WORDS-1];
+ unsigned long tramp[2]; /* signal trampoline */
+};
+
+struct rt_sigframe {
+ struct siginfo info;
+ struct ucontext uc;
+ unsigned long tramp[2]; /* signal trampoline */
+};
+
+static int
+restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p)
+{
+ unsigned int err = 0;
+
+#define COPY(x) {err |= __get_user(regs->x, &sc->regs.x); }
+ COPY(r0);
+ COPY(r1);
+ COPY(r2); COPY(r3); COPY(r4); COPY(r5);
+ COPY(r6); COPY(r7); COPY(r8); COPY(r9);
+ COPY(r10); COPY(r11); COPY(r12); COPY(r13);
+ COPY(r14); COPY(r15); COPY(r16); COPY(r17);
+ COPY(r18); COPY(r19); COPY(r20); COPY(r21);
+ COPY(r22); COPY(r23); COPY(r24); COPY(r25);
+ COPY(r26); COPY(r27); COPY(r28); COPY(r29);
+ COPY(r30); COPY(r31);
+ COPY(pc); COPY(ear); COPY(esr); COPY(fsr);
+#undef COPY
+
+ *rval_p = regs->r3;
+
+ return err;
+}
+
+asmlinkage int sys_sigreturn(struct pt_regs *regs)
+{
+ struct sigframe *frame = (struct sigframe *)regs->r1;
+ sigset_t set;
+ int rval;
+
+ if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+ goto badframe;
+
+ if (__get_user(set.sig[0], &frame->sc.oldmask)
+ || (_NSIG_WORDS > 1
+ && __copy_from_user(&set.sig[1], &frame->extramask,
+ sizeof(frame->extramask))))
+ goto badframe;
+
+ sigdelsetmask(&set, ~_BLOCKABLE);
+
+ spin_lock_irq(¤t->sighand->siglock);
+ current->blocked = set;
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ if (restore_sigcontext(regs, &frame->sc, &rval))
+ goto badframe;
+ return rval;
+
+badframe:
+ force_sig(SIGSEGV, current);
+ return 0;
+}
+
+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
+{
+ struct rt_sigframe *frame = (struct rt_sigframe *)regs->r1;
+ sigset_t set;
+ stack_t st;
+ int rval;
+
+ if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+ goto badframe;
+
+ if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+ goto badframe;
+
+ sigdelsetmask(&set, ~_BLOCKABLE);
+ spin_lock_irq(¤t->sighand->siglock);
+ current->blocked = set;
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
+ goto badframe;
+
+ if (__copy_from_user((void *)&st, &frame->uc.uc_stack, sizeof(st)))
+ goto badframe;
+ /* It is more difficult to avoid calling this function than to
+ call it and ignore errors. */
+ do_sigaltstack(&st, NULL, regs->r1);
+
+ return rval;
+
+badframe:
+ force_sig(SIGSEGV, current);
+ return 0;
+}
+
+/*
+ * Set up a signal frame.
+ */
+
+static int
+setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
+ unsigned long mask)
+{
+ int err = 0;
+
+#define COPY(x) {err |= __put_user(regs->x, &sc->regs.x); }
+ COPY(r0);
+ COPY(r1);
+ COPY(r2); COPY(r3); COPY(r4); COPY(r5);
+ COPY(r6); COPY(r7); COPY(r8); COPY(r9);
+ COPY(r10); COPY(r11); COPY(r12); COPY(r13);
+ COPY(r14); COPY(r15); COPY(r16); COPY(r17);
+ COPY(r18); COPY(r19); COPY(r20); COPY(r21);
+ COPY(r22); COPY(r23); COPY(r24); COPY(r25);
+ COPY(r26); COPY(r27); COPY(r28); COPY(r29);
+ COPY(r30); COPY(r31);
+ COPY(pc); COPY(ear); COPY(esr); COPY(fsr);
+#undef COPY
+
+ err |= __put_user(mask, &sc->oldmask);
+
+ return err;
+}
+
+/*
+ * Determine which stack to use..
+ */
+static inline void *
+get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
+{
+ /* Default to using normal stack */
+ unsigned long sp = regs->r1;
+
+ if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && !on_sig_stack(sp))
+ sp = current->sas_ss_sp + current->sas_ss_size;
+
+ return (void *)((sp - frame_size) & -8UL);
+}
+
+static void setup_frame(int sig, struct k_sigaction *ka,
+ sigset_t *set, struct pt_regs *regs)
+{
+ struct sigframe *frame;
+ int err = 0;
+ int signal;
+
+ frame = get_sigframe(ka, regs, sizeof(*frame));
+
+ if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+ goto give_sigsegv;
+
+ signal = current_thread_info()->exec_domain
+ && current_thread_info()->exec_domain->signal_invmap
+ && sig < 32
+ ? current_thread_info()->exec_domain->signal_invmap[sig]
+ : sig;
+
+ err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
+
+ if (_NSIG_WORDS > 1) {
+ err |= __copy_to_user(frame->extramask, &set->sig[1],
+ sizeof(frame->extramask));
+ }
+
+ /* Set up to return from userspace. If provided, use a stub
+ already in userspace. */
+ /* minus 8 is offset to cater for "rtsd r15,8" offset */
+ if (ka->sa.sa_flags & SA_RESTORER) {
+ regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
+ } else {
+ /* Note, these encodings are _big endian_! */
+
+ /* addi r12, r0, __NR_sigreturn */
+ err |= __put_user(0x31800000 | __NR_sigreturn ,
+ frame->tramp + 0);
+ /* brki r14, 0x8 */
+ err |= __put_user(0xb9cc0008, frame->tramp + 1);
+
+ /* Return from sighandler will jump to the tramp.
+ Negative 8 offset because return is rtsd r15, 8 */
+ regs->r15 = ((unsigned long)frame->tramp)-8;
+
+ __invalidate_cache_sigtramp((unsigned long)frame->tramp);
+ }
+
+ if (err)
+ goto give_sigsegv;
+
+ /* Set up registers for signal handler */
+ regs->r1 = (unsigned long) frame;
+ /* Signal handler args: */
+ regs->r5 = signal; /* Arg 0: signum */
+ regs->r6 = (unsigned long) &frame->sc; /* arg 1: sigcontext */
+
+ /* Offset of 4 to handle microblaze rtid r14, 0 */
+ regs->pc = (unsigned long)ka->sa.sa_handler;
+
+ set_fs(USER_DS);
+
+#ifdef DEBUG_SIG
+ printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
+ current->comm, current->pid, frame, regs->pc);
+#endif
+
+ return;
+
+give_sigsegv:
+ if (sig == SIGSEGV)
+ ka->sa.sa_handler = SIG_DFL;
+ force_sig(SIGSEGV, current);
+}
+
+static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+ sigset_t *set, struct pt_regs *regs)
+{
+ struct rt_sigframe *frame;
+ int err = 0;
+ int signal;
+
+ frame = get_sigframe(ka, regs, sizeof(*frame));
+
+ if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+ goto give_sigsegv;
+
+ signal = current_thread_info()->exec_domain
+ && current_thread_info()->exec_domain->signal_invmap
+ && sig < 32
+ ? current_thread_info()->exec_domain->signal_invmap[sig]
+ : sig;
+
+ err |= copy_siginfo_to_user(&frame->info, info);
+
+ /* Create the ucontext. */
+ err |= __put_user(0, &frame->uc.uc_flags);
+ err |= __put_user(0, &frame->uc.uc_link);
+ err |= __put_user((void *)current->sas_ss_sp,
+ &frame->uc.uc_stack.ss_sp);
+ err |= __put_user(sas_ss_flags(regs->r1),
+ &frame->uc.uc_stack.ss_flags);
+ err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+ err |= setup_sigcontext(&frame->uc.uc_mcontext,
+ regs, set->sig[0]);
+ err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+ /* Set up to return from userspace. If provided, use a stub
+ already in userspace. */
+ /* minus 8 is offset to cater for "rtsd r15,8" */
+ if (ka->sa.sa_flags & SA_RESTORER) {
+ regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
+ } else {
+ /* addi r12, r0, __NR_sigreturn */
+ err |= __put_user(0x31800000 | __NR_rt_sigreturn ,
+ frame->tramp + 0);
+ /* brki r14, 0x8 */
+ err |= __put_user(0xb9cc0008, frame->tramp + 1);
+
+ /* Return from sighandler will jump to the tramp.
+ Negative 8 offset because return is rtsd r15, 8 */
+ regs->r15 = ((unsigned long)frame->tramp)-8;
+
+ __invalidate_cache_sigtramp((unsigned long)frame->tramp);
+ }
+
+ if (err)
+ goto give_sigsegv;
+
+ /* Set up registers for signal handler */
+ regs->r1 = (unsigned long) frame;
+ /* Signal handler args: */
+ regs->r5 = signal; /* arg 0: signum */
+ regs->r6 = (unsigned long) &frame->info; /* arg 1: siginfo */
+ regs->r7 = (unsigned long) &frame->uc; /* arg2: ucontext */
+ /* Offset to handle microblaze rtid r14, 0 */
+ regs->pc = (unsigned long)ka->sa.sa_handler;
+
+ set_fs(USER_DS);
+
+#ifdef DEBUG_SIG
+ printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
+ current->comm, current->pid, frame, regs->pc);
+#endif
+
+ return;
+
+give_sigsegv:
+ if (sig == SIGSEGV)
+ ka->sa.sa_handler = SIG_DFL;
+ force_sig(SIGSEGV, current);
+}
+
+/* Handle restarting system calls */
+static inline void
+handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
+{
+ switch (regs->r3) {
+ case -ERESTART_RESTARTBLOCK:
+ case -ERESTARTNOHAND:
+ if (!has_handler)
+ goto do_restart;
+ regs->r3 = -EINTR;
+ break;
+ case -ERESTARTSYS:
+ if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
+ regs->r3 = -EINTR;
+ break;
+ }
+ /* fallthrough */
+ case -ERESTARTNOINTR:
+do_restart:
+ /* offset of 4 bytes to re-execute trap (brki) instruction */
+ regs->pc -= 4;
+ break;
+ }
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+
+static void
+handle_signal(unsigned long sig, struct k_sigaction *ka,
+ siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
+{
+ /* Set up the stack frame */
+ if (ka->sa.sa_flags & SA_SIGINFO)
+ setup_rt_frame(sig, ka, info, oldset, regs);
+ else
+ setup_frame(sig, ka, oldset, regs);
+
+ if (ka->sa.sa_flags & SA_ONESHOT)
+ ka->sa.sa_handler = SIG_DFL;
+
+ if (!(ka->sa.sa_flags & SA_NODEFER)) {
+ spin_lock_irq(¤t->sighand->siglock);
+ sigorsets(¤t->blocked,
+ ¤t->blocked, &ka->sa.sa_mask);
+ sigaddset(¤t->blocked, sig);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+ }
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ *
+ * Note that we go through the signals twice: once to check the signals that
+ * the kernel can handle, and then we build all the user-level signal handling
+ * stack-frames in one go after that.
+ */
+int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
+{
+ siginfo_t info;
+ int signr;
+ struct k_sigaction ka;
+#ifdef DEBUG_SIG
+ printk(KERN_INFO "do signal: %p %p %d\n", regs, oldset, in_syscall);
+ printk(KERN_INFO "do signal2: %lx %lx %ld [%lx]\n", regs->pc, regs->r1,
+ regs->r12, current_thread_info()->flags);
+#endif
+ /*
+ * We want the common case to go fast, which
+ * is why we may in certain cases get here from
+ * kernel mode. Just return without doing anything
+ * if so.
+ */
+ if (kernel_mode(regs))
+ return 1;
+
+ if (!oldset)
+ oldset = ¤t->blocked;
+
+ signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+ if (signr > 0) {
+ /* Whee! Actually deliver the signal. */
+ if (in_syscall)
+ handle_restart(regs, &ka, 1);
+ handle_signal(signr, &ka, &info, oldset, regs);
+ return 1;
+ }
+
+ if (in_syscall)
+ handle_restart(regs, NULL, 0);
+
+ /* Did we come from a system call? */
+ return 0;
+}
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
new file mode 100644
index 0000000..ba0568c
--- /dev/null
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
+ *
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ * Tetsuya OHKAWA <tetsuya@atmark-techno.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/syscalls.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/sys.h>
+#include <linux/ipc.h>
+#include <linux/utsname.h>
+#include <linux/file.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/fs.h>
+#include <linux/semaphore.h>
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+#include <asm/syscalls.h>
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly. This will be remove with new toolchain.
+ */
+asmlinkage int
+sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
+{
+ int version, ret;
+
+ version = call >> 16; /* hack for backward compatibility */
+ call &= 0xffff;
+
+ ret = -EINVAL;
+ switch (call) {
+ case SEMOP:
+ ret = sys_semop(first, (struct sembuf *)ptr, second);
+ break;
+ case SEMGET:
+ ret = sys_semget(first, second, third);
+ break;
+ case SEMCTL:
+ {
+ union semun fourth;
+
+ if (!ptr)
+ break;
+ ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
+ || (get_user(fourth.__pad, (void **)ptr)) ;
+ if (ret)
+ break;
+ ret = sys_semctl(first, second, third, fourth);
+ break;
+ }
+ case MSGSND:
+ ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
+ break;
+ case MSGRCV:
+ switch (version) {
+ case 0: {
+ struct ipc_kludge tmp;
+
+ if (!ptr)
+ break;
+ ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
+ ? 0 : -EFAULT) || copy_from_user(&tmp,
+ (struct ipc_kludge *) ptr, sizeof(tmp));
+ if (ret)
+ break;
+ ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
+ third);
+ break;
+ }
+ default:
+ ret = sys_msgrcv(first, (struct msgbuf *) ptr,
+ second, fifth, third);
+ break;
+ }
+ break;
+ case MSGGET:
+ ret = sys_msgget((key_t) first, second);
+ break;
+ case MSGCTL:
+ ret = sys_msgctl(first, second, (struct msqid_ds *) ptr);
+ break;
+ case SHMAT:
+ switch (version) {
+ default: {
+ ulong raddr;
+ ret = access_ok(VERIFY_WRITE, (ulong *) third,
+ sizeof(ulong)) ? 0 : -EFAULT;
+ if (ret)
+ break;
+ ret = do_shmat(first, (char *) ptr, second, &raddr);
+ if (ret)
+ break;
+ ret = put_user(raddr, (ulong *) third);
+ break;
+ }
+ case 1: /* iBCS2 emulator entry point */
+ if (!segment_eq(get_fs(), get_ds()))
+ break;
+ ret = do_shmat(first, (char *) ptr, second,
+ (ulong *) third);
+ break;
+ }
+ break;
+ case SHMDT:
+ ret = sys_shmdt((char *)ptr);
+ break;
+ case SHMGET:
+ ret = sys_shmget(first, second, third);
+ break;
+ case SHMCTL:
+ ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
+ break;
+ }
+ return -EINVAL;
+}
+
+asmlinkage int sys_vfork(struct pt_regs *regs)
+{
+ return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->r1,
+ regs, 0, NULL, NULL);
+}
+
+asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs)
+{
+ if (!stack)
+ stack = regs->r1;
+ return do_fork(flags, stack, regs, 0, NULL, NULL);
+}
+
+asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
+ char __user *__user *envp, struct pt_regs *regs)
+{
+ int error;
+ char *filename;
+
+ filename = getname(filenamei);
+ error = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ goto out;
+ error = do_execve(filename, argv, envp, regs);
+ putname(filename);
+out:
+ return error;
+}
+
+asmlinkage unsigned long
+sys_mmap2(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+{
+ struct file *file = NULL;
+ int ret = -EBADF;
+
+ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+ if (!(flags & MAP_ANONYMOUS)) {
+ file = fget(fd);
+ if (!file) {
+ printk(KERN_INFO "no fd in mmap\r\n");
+ goto out;
+ }
+ }
+
+ down_write(¤t->mm->mmap_sem);
+ ret = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
+ up_write(¤t->mm->mmap_sem);
+ if (file)
+ fput(file);
+out:
+ return ret;
+}
+
+asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, off_t offset)
+{
+ int err = -EINVAL;
+
+ if (offset & ~PAGE_MASK) {
+ printk(KERN_INFO "no pagemask in mmap\r\n");
+ goto out;
+ }
+
+ err = sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+out:
+ return err;
+}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register const char *__a __asm__("r5") = filename;
+ register const void *__b __asm__("r6") = argv;
+ register const void *__c __asm__("r7") = envp;
+ register unsigned long __syscall __asm__("r12") = __NR_execve;
+ register unsigned long __ret __asm__("r3");
+ __asm__ __volatile__ ("brki r14, 0x8"
+ : "=r" (__ret), "=r" (__syscall)
+ : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
+ : "r4", "r8", "r9",
+ "r10", "r11", "r14", "cc", "memory");
+ return __ret;
+}
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
new file mode 100644
index 0000000..529b0db
--- /dev/null
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -0,0 +1,365 @@
+ENTRY(sys_call_table)
+ .long sys_restart_syscall /* 0 - old "setup()" system call,
+ * used for restarting */
+ .long sys_exit
+ .long sys_ni_syscall /* was fork */
+ .long sys_read
+ .long sys_write
+ .long sys_open /* 5 */
+ .long sys_close
+ .long sys_waitpid
+ .long sys_creat
+ .long sys_link
+ .long sys_unlink /* 10 */
+ .long sys_execve_wrapper
+ .long sys_chdir
+ .long sys_time
+ .long sys_mknod
+ .long sys_chmod /* 15 */
+ .long sys_lchown
+ .long sys_ni_syscall /* old break syscall holder */
+ .long sys_ni_syscall /* old stat */
+ .long sys_lseek
+ .long sys_getpid /* 20 */
+ .long sys_mount
+ .long sys_oldumount
+ .long sys_setuid
+ .long sys_getuid
+ .long sys_stime /* 25 */
+ .long sys_ptrace
+ .long sys_alarm
+ .long sys_ni_syscall /* oldfstat */
+ .long sys_pause
+ .long sys_utime /* 30 */
+ .long sys_ni_syscall /* old stty syscall holder */
+ .long sys_ni_syscall /* old gtty syscall holder */
+ .long sys_access
+ .long sys_nice
+ .long sys_ni_syscall /* 35 - old ftime syscall holder */
+ .long sys_sync
+ .long sys_kill
+ .long sys_rename
+ .long sys_mkdir
+ .long sys_rmdir /* 40 */
+ .long sys_dup
+ .long sys_pipe
+ .long sys_times
+ .long sys_ni_syscall /* old prof syscall holder */
+ .long sys_brk /* 45 */
+ .long sys_setgid
+ .long sys_getgid
+ .long sys_signal
+ .long sys_geteuid
+ .long sys_getegid /* 50 */
+ .long sys_acct
+ .long sys_umount /* recycled never used phys() */
+ .long sys_ni_syscall /* old lock syscall holder */
+ .long sys_ioctl
+ .long sys_fcntl /* 55 */
+ .long sys_ni_syscall /* old mpx syscall holder */
+ .long sys_setpgid
+ .long sys_ni_syscall /* old ulimit syscall holder */
+ .long sys_ni_syscall /* olduname */
+ .long sys_umask /* 60 */
+ .long sys_chroot
+ .long sys_ustat
+ .long sys_dup2
+ .long sys_getppid
+ .long sys_getpgrp /* 65 */
+ .long sys_setsid
+ .long sys_sigaction
+ .long sys_sgetmask
+ .long sys_ssetmask
+ .long sys_setreuid /* 70 */
+ .long sys_setregid
+ .long sys_sigsuspend_wrapper
+ .long sys_sigpending
+ .long sys_sethostname
+ .long sys_setrlimit /* 75 */
+ .long sys_ni_syscall /* old_getrlimit */
+ .long sys_getrusage
+ .long sys_gettimeofday
+ .long sys_settimeofday
+ .long sys_getgroups /* 80 */
+ .long sys_setgroups
+ .long sys_ni_syscall /* old_select */
+ .long sys_symlink
+ .long sys_ni_syscall /* oldlstat */
+ .long sys_readlink /* 85 */
+ .long sys_uselib
+ .long sys_swapon
+ .long sys_reboot
+ .long sys_ni_syscall /* old_readdir */
+ .long sys_mmap /* 90 */ /* old_mmap */
+ .long sys_munmap
+ .long sys_truncate
+ .long sys_ftruncate
+ .long sys_fchmod
+ .long sys_fchown /* 95 */
+ .long sys_getpriority
+ .long sys_setpriority
+ .long sys_ni_syscall /* old profil syscall holder */
+ .long sys_statfs
+ .long sys_fstatfs /* 100 */
+ .long sys_ni_syscall /* ioperm */
+ .long sys_socketcall
+ .long sys_syslog /* operation with system console */
+ .long sys_setitimer
+ .long sys_getitimer /* 105 */
+ .long sys_newstat
+ .long sys_newlstat
+ .long sys_newfstat
+ .long sys_ni_syscall /* uname */
+ .long sys_ni_syscall /* 110 */ /* iopl */
+ .long sys_vhangup
+ .long sys_ni_syscall /* old "idle" system call */
+ .long sys_ni_syscall /* old sys_vm86old */
+ .long sys_wait4
+ .long sys_swapoff /* 115 */
+ .long sys_sysinfo
+ .long sys_ipc
+ .long sys_fsync
+ .long sys_sigreturn_wrapper
+ .long sys_clone_wrapper /* 120 */
+ .long sys_setdomainname
+ .long sys_newuname
+ .long sys_ni_syscall /* modify_ldt */
+ .long sys_adjtimex
+ .long sys_mprotect /* 125: sys_mprotect */
+ .long sys_sigprocmask
+ .long sys_ni_syscall /* old "create_module" */
+ .long sys_init_module
+ .long sys_delete_module
+ .long sys_ni_syscall /* 130: old "get_kernel_syms" */
+ .long sys_quotactl
+ .long sys_getpgid
+ .long sys_fchdir
+ .long sys_bdflush
+ .long sys_sysfs /* 135 */
+ .long sys_personality
+ .long sys_ni_syscall /* reserved for afs_syscall */
+ .long sys_setfsuid
+ .long sys_setfsgid
+ .long sys_llseek /* 140 */
+ .long sys_getdents
+ .long sys_select
+ .long sys_flock
+ .long sys_msync
+ .long sys_readv /* 145 */
+ .long sys_writev
+ .long sys_getsid
+ .long sys_fdatasync
+ .long sys_sysctl
+ .long sys_mlock /* 150: sys_mlock */
+ .long sys_munlock
+ .long sys_mlockall
+ .long sys_munlockall
+ .long sys_sched_setparam
+ .long sys_sched_getparam /* 155 */
+ .long sys_sched_setscheduler
+ .long sys_sched_getscheduler
+ .long sys_sched_yield
+ .long sys_sched_get_priority_max
+ .long sys_sched_get_priority_min /* 160 */
+ .long sys_sched_rr_get_interval
+ .long sys_nanosleep
+ .long sys_mremap
+ .long sys_setresuid
+ .long sys_getresuid /* 165 */
+ .long sys_ni_syscall /* sys_vm86 */
+ .long sys_ni_syscall /* Old sys_query_module */
+ .long sys_poll
+ .long sys_nfsservctl
+ .long sys_setresgid /* 170 */
+ .long sys_getresgid
+ .long sys_prctl
+ .long sys_rt_sigreturn_wrapper
+ .long sys_rt_sigaction
+ .long sys_rt_sigprocmask /* 175 */
+ .long sys_rt_sigpending
+ .long sys_rt_sigtimedwait
+ .long sys_rt_sigqueueinfo
+ .long sys_rt_sigsuspend_wrapper
+ .long sys_pread64 /* 180 */
+ .long sys_pwrite64
+ .long sys_chown
+ .long sys_getcwd
+ .long sys_capget
+ .long sys_capset /* 185 */
+ .long sys_ni_syscall /* sigaltstack */
+ .long sys_sendfile
+ .long sys_ni_syscall /* reserved for streams1 */
+ .long sys_ni_syscall /* reserved for streams2 */
+ .long sys_vfork_wrapper /* 190 */
+ .long sys_getrlimit
+ .long sys_mmap2 /* mmap2 */
+ .long sys_truncate64
+ .long sys_ftruncate64
+ .long sys_stat64 /* 195 */
+ .long sys_lstat64
+ .long sys_fstat64
+ .long sys_lchown
+ .long sys_getuid
+ .long sys_getgid /* 200 */
+ .long sys_geteuid
+ .long sys_getegid
+ .long sys_setreuid
+ .long sys_setregid
+ .long sys_getgroups /* 205 */
+ .long sys_setgroups
+ .long sys_fchown
+ .long sys_setresuid
+ .long sys_getresuid
+ .long sys_setresgid /* 210 */
+ .long sys_getresgid
+ .long sys_chown
+ .long sys_setuid
+ .long sys_setgid
+ .long sys_setfsuid /* 215 */
+ .long sys_setfsgid
+ .long sys_pivot_root
+ .long sys_mincore
+ .long sys_madvise
+ .long sys_getdents64 /* 220 */
+ .long sys_fcntl64
+ .long sys_ni_syscall /* reserved for TUX */
+ .long sys_ni_syscall
+ .long sys_gettid
+ .long sys_readahead /* 225 */
+ .long sys_setxattr
+ .long sys_lsetxattr
+ .long sys_fsetxattr
+ .long sys_getxattr
+ .long sys_lgetxattr /* 230 */
+ .long sys_fgetxattr
+ .long sys_listxattr
+ .long sys_llistxattr
+ .long sys_flistxattr
+ .long sys_removexattr /* 235 */
+ .long sys_lremovexattr
+ .long sys_fremovexattr
+ .long sys_tkill
+ .long sys_sendfile64
+ .long sys_futex /* 240 */
+ .long sys_sched_setaffinity
+ .long sys_sched_getaffinity
+ .long sys_ni_syscall /* set_thread_area */
+ .long sys_ni_syscall /* get_thread_area */
+ .long sys_io_setup /* 245 */
+ .long sys_io_destroy
+ .long sys_io_getevents
+ .long sys_io_submit
+ .long sys_io_cancel
+ .long sys_fadvise64 /* 250 */
+ .long sys_ni_syscall
+ .long sys_exit_group
+ .long sys_lookup_dcookie
+ .long sys_epoll_create
+ .long sys_epoll_ctl /* 255 */
+ .long sys_epoll_wait
+ .long sys_remap_file_pages
+ .long sys_set_tid_address
+ .long sys_timer_create
+ .long sys_timer_settime /* 260 */
+ .long sys_timer_gettime
+ .long sys_timer_getoverrun
+ .long sys_timer_delete
+ .long sys_clock_settime
+ .long sys_clock_gettime /* 265 */
+ .long sys_clock_getres
+ .long sys_clock_nanosleep
+ .long sys_statfs64
+ .long sys_fstatfs64
+ .long sys_tgkill /* 270 */
+ .long sys_utimes
+ .long sys_fadvise64_64
+ .long sys_ni_syscall /* sys_vserver */
+ .long sys_mbind
+ .long sys_get_mempolicy
+ .long sys_set_mempolicy
+ .long sys_mq_open
+ .long sys_mq_unlink
+ .long sys_mq_timedsend
+ .long sys_mq_timedreceive /* 280 */
+ .long sys_mq_notify
+ .long sys_mq_getsetattr
+ .long sys_kexec_load
+ .long sys_waitid
+ .long sys_ni_syscall /* 285 */ /* available */
+ .long sys_add_key
+ .long sys_request_key
+ .long sys_keyctl
+ .long sys_ioprio_set
+ .long sys_ioprio_get /* 290 */
+ .long sys_inotify_init
+ .long sys_inotify_add_watch
+ .long sys_inotify_rm_watch
+ .long sys_ni_syscall /* sys_migrate_pages */
+ .long sys_openat /* 295 */
+ .long sys_mkdirat
+ .long sys_mknodat
+ .long sys_fchownat
+ .long sys_ni_syscall
+ .long sys_fstatat64 /* 300 */
+ .long sys_unlinkat
+ .long sys_renameat
+ .long sys_linkat
+ .long sys_symlinkat
+ .long sys_readlinkat /* 305 */
+ .long sys_fchmodat
+ .long sys_faccessat
+ .long sys_ni_syscall /* pselect6 */
+ .long sys_ni_syscall /* sys_ppoll */
+ .long sys_unshare /* 310 */
+ .long sys_set_robust_list
+ .long sys_get_robust_list
+ .long sys_splice
+ .long sys_sync_file_range
+ .long sys_tee /* 315 */
+ .long sys_vmsplice
+ .long sys_move_pages
+ .long sys_getcpu
+ .long sys_epoll_pwait
+ .long sys_utimensat /* 320 */
+ .long sys_signalfd
+ .long sys_timerfd_create
+ .long sys_eventfd
+ .long sys_fallocate
+ .long sys_semtimedop /* 325 */
+ .long sys_timerfd_settime
+ .long sys_timerfd_gettime
+ .long sys_semctl
+ .long sys_semget
+ .long sys_semop /* 330 */
+ .long sys_msgctl
+ .long sys_msgget
+ .long sys_msgrcv
+ .long sys_msgsnd
+ .long sys_shmat /* 335 */
+ .long sys_shmctl
+ .long sys_shmdt
+ .long sys_shmget
+ .long sys_signalfd4 /* new syscall */
+ .long sys_eventfd2 /* 340 */
+ .long sys_epoll_create1
+ .long sys_dup3
+ .long sys_pipe2
+ .long sys_inotify_init1
+ .long sys_socket /* 345 */
+ .long sys_socketpair
+ .long sys_bind
+ .long sys_listen
+ .long sys_accept
+ .long sys_connect /* 350 */
+ .long sys_getsockname
+ .long sys_getpeername
+ .long sys_sendto
+ .long sys_send
+ .long sys_recvfrom /* 355 */
+ .long sys_recv
+ .long sys_setsockopt
+ .long sys_getsockopt
+ .long sys_shutdown
+ .long sys_sendmsg /* 360 */
+ .long sys_recvmsg
+ .long sys_ni_syscall
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
new file mode 100644
index 0000000..05a497e
--- /dev/null
+++ b/arch/microblaze/kernel/timer.c
@@ -0,0 +1,262 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/interrupt.h>
+#include <linux/profile.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/io.h>
+#include <asm/cpuinfo.h>
+#include <asm/setup.h>
+#include <asm/prom.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_SELFMOD_TIMER
+#include <asm/selfmod.h>
+#define TIMER_BASE BARRIER_BASE_ADDR
+#else
+static unsigned int timer_baseaddr;
+#define TIMER_BASE timer_baseaddr
+#endif
+
+#define TCSR0 (0x00)
+#define TLR0 (0x04)
+#define TCR0 (0x08)
+#define TCSR1 (0x10)
+#define TLR1 (0x14)
+#define TCR1 (0x18)
+
+#define TCSR_MDT (1<<0)
+#define TCSR_UDT (1<<1)
+#define TCSR_GENT (1<<2)
+#define TCSR_CAPT (1<<3)
+#define TCSR_ARHT (1<<4)
+#define TCSR_LOAD (1<<5)
+#define TCSR_ENIT (1<<6)
+#define TCSR_ENT (1<<7)
+#define TCSR_TINT (1<<8)
+#define TCSR_PWMA (1<<9)
+#define TCSR_ENALL (1<<10)
+
+static inline void microblaze_timer0_stop(void)
+{
+ out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0) & ~TCSR_ENT);
+}
+
+static inline void microblaze_timer0_start_periodic(unsigned long load_val)
+{
+ if (!load_val)
+ load_val = 1;
+ out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
+
+ /* load the initial value */
+ out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
+
+ /* see timer data sheet for detail
+ * !ENALL - don't enable 'em all
+ * !PWMA - disable pwm
+ * TINT - clear interrupt status
+ * ENT- enable timer itself
+ * EINT - enable interrupt
+ * !LOAD - clear the bit to let go
+ * ARHT - auto reload
+ * !CAPT - no external trigger
+ * !GENT - no external signal
+ * UDT - set the timer as down counter
+ * !MDT0 - generate mode
+ */
+ out_be32(TIMER_BASE + TCSR0,
+ TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
+}
+
+static inline void microblaze_timer0_start_oneshot(unsigned long load_val)
+{
+ if (!load_val)
+ load_val = 1;
+ out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
+
+ /* load the initial value */
+ out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
+
+ out_be32(TIMER_BASE + TCSR0,
+ TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
+}
+
+static int microblaze_timer_set_next_event(unsigned long delta,
+ struct clock_event_device *dev)
+{
+ pr_debug("%s: next event, delta %x\n", __func__, (u32)delta);
+ microblaze_timer0_start_oneshot(delta);
+ return 0;
+}
+
+static void microblaze_timer_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ printk(KERN_INFO "%s: periodic\n", __func__);
+ microblaze_timer0_start_periodic(cpuinfo.freq_div_hz);
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ printk(KERN_INFO "%s: oneshot\n", __func__);
+ break;
+ case CLOCK_EVT_MODE_UNUSED:
+ printk(KERN_INFO "%s: unused\n", __func__);
+ break;
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ printk(KERN_INFO "%s: shutdown\n", __func__);
+ microblaze_timer0_stop();
+ break;
+ case CLOCK_EVT_MODE_RESUME:
+ printk(KERN_INFO "%s: resume\n", __func__);
+ break;
+ }
+}
+
+static struct clock_event_device clockevent_microblaze_timer = {
+ .name = "microblaze_clockevent",
+ .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
+ .shift = 24,
+ .rating = 300,
+ .set_next_event = microblaze_timer_set_next_event,
+ .set_mode = microblaze_timer_set_mode,
+};
+
+static inline void timer_ack(void)
+{
+ out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0));
+}
+
+static irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *evt = &clockevent_microblaze_timer;
+#ifdef CONFIG_HEART_BEAT
+ heartbeat();
+#endif
+ timer_ack();
+ evt->event_handler(evt);
+ return IRQ_HANDLED;
+}
+
+static struct irqaction timer_irqaction = {
+ .handler = timer_interrupt,
+ .flags = IRQF_DISABLED | IRQF_TIMER,
+ .name = "timer",
+ .dev_id = &clockevent_microblaze_timer,
+};
+
+static __init void microblaze_clockevent_init(void)
+{
+ clockevent_microblaze_timer.mult =
+ div_sc(cpuinfo.cpu_clock_freq, NSEC_PER_SEC,
+ clockevent_microblaze_timer.shift);
+ clockevent_microblaze_timer.max_delta_ns =
+ clockevent_delta2ns((u32)~0, &clockevent_microblaze_timer);
+ clockevent_microblaze_timer.min_delta_ns =
+ clockevent_delta2ns(1, &clockevent_microblaze_timer);
+ clockevent_microblaze_timer.cpumask = cpumask_of(0);
+ clockevents_register_device(&clockevent_microblaze_timer);
+}
+
+static cycle_t microblaze_read(void)
+{
+ /* reading actual value of timer 1 */
+ return (cycle_t) (in_be32(TIMER_BASE + TCR1));
+}
+
+static struct clocksource clocksource_microblaze = {
+ .name = "microblaze_clocksource",
+ .rating = 300,
+ .read = microblaze_read,
+ .mask = CLOCKSOURCE_MASK(32),
+ .shift = 24, /* I can shift it */
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int __init microblaze_clocksource_init(void)
+{
+ clocksource_microblaze.mult =
+ clocksource_hz2mult(cpuinfo.cpu_clock_freq,
+ clocksource_microblaze.shift);
+ if (clocksource_register(&clocksource_microblaze))
+ panic("failed to register clocksource");
+
+ /* stop timer1 */
+ out_be32(TIMER_BASE + TCSR1, in_be32(TIMER_BASE + TCSR1) & ~TCSR_ENT);
+ /* start timer1 - up counting without interrupt */
+ out_be32(TIMER_BASE + TCSR1, TCSR_TINT|TCSR_ENT|TCSR_ARHT);
+ return 0;
+}
+
+void __init time_init(void)
+{
+ u32 irq, i = 0;
+ u32 timer_num = 1;
+ struct device_node *timer = NULL;
+#ifdef CONFIG_SELFMOD_TIMER
+ unsigned int timer_baseaddr = 0;
+ int arr_func[] = {
+ (int)µblaze_read,
+ (int)&timer_interrupt,
+ (int)µblaze_clocksource_init,
+ (int)µblaze_timer_set_mode,
+ (int)µblaze_timer_set_next_event,
+ 0
+ };
+#endif
+ char *timer_list[] = {
+ "xlnx,xps-timer-1.00.a",
+ "xlnx,opb-timer-1.00.b",
+ "xlnx,opb-timer-1.00.a",
+ NULL
+ };
+
+ for (i = 0; timer_list[i] != NULL; i++) {
+ timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
+ if (timer)
+ break;
+ }
+
+ timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL);
+ timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
+ irq = *(int *) of_get_property(timer, "interrupts", NULL);
+ timer_num =
+ *(int *) of_get_property(timer, "xlnx,one-timer-only", NULL);
+ if (timer_num) {
+ printk(KERN_EMERG "Please enable two timers in HW\n");
+ BUG();
+ }
+
+#ifdef CONFIG_SELFMOD_TIMER
+ selfmod_function((int *) arr_func, timer_baseaddr);
+#endif
+ printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
+ timer_list[i], timer_baseaddr, irq);
+
+ cpuinfo.freq_div_hz = cpuinfo.cpu_clock_freq / HZ;
+
+ setup_irq(irq, &timer_irqaction);
+#ifdef CONFIG_HEART_BEAT
+ setup_heartbeat();
+#endif
+ microblaze_clocksource_init();
+ microblaze_clockevent_init();
+}
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
new file mode 100644
index 0000000..fbdc533
--- /dev/null
+++ b/arch/microblaze/kernel/traps.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kallsyms.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/debug_locks.h>
+
+#include <asm/exceptions.h>
+#include <asm/system.h>
+
+void trap_init(void)
+{
+ __enable_hw_exceptions();
+}
+
+void __bad_xchg(volatile void *ptr, int size)
+{
+ printk(KERN_INFO "xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n",
+ __builtin_return_address(0), ptr, size);
+ BUG();
+}
+EXPORT_SYMBOL(__bad_xchg);
+
+static int kstack_depth_to_print = 24;
+
+static int __init kstack_setup(char *s)
+{
+ kstack_depth_to_print = strict_strtoul(s, 0, 0);
+
+ return 1;
+}
+__setup("kstack=", kstack_setup);
+
+void show_trace(struct task_struct *task, unsigned long *stack)
+{
+ unsigned long addr;
+
+ if (!stack)
+ stack = (unsigned long *)&stack;
+
+ printk(KERN_NOTICE "Call Trace: ");
+#ifdef CONFIG_KALLSYMS
+ printk(KERN_NOTICE "\n");
+#endif
+ while (!kstack_end(stack)) {
+ addr = *stack++;
+ /*
+ * If the address is either in the text segment of the
+ * kernel, or in the region which contains vmalloc'ed
+ * memory, it *may* be the address of a calling
+ * routine; if so, print it so that someone tracing
+ * down the cause of the crash will be able to figure
+ * out the call path that was taken.
+ */
+ if (kernel_text_address(addr))
+ print_ip_sym(addr);
+ }
+ printk(KERN_NOTICE "\n");
+
+ if (!task)
+ task = current;
+
+ debug_show_held_locks(task);
+}
+
+void show_stack(struct task_struct *task, unsigned long *sp)
+{
+ unsigned long *stack;
+ int i;
+
+ if (sp == NULL) {
+ if (task)
+ sp = (unsigned long *) ((struct thread_info *)
+ (task->stack))->cpu_context.r1;
+ else
+ sp = (unsigned long *)&sp;
+ }
+
+ stack = sp;
+
+ printk(KERN_INFO "\nStack:\n ");
+
+ for (i = 0; i < kstack_depth_to_print; i++) {
+ if (kstack_end(sp))
+ break;
+ if (i && ((i % 8) == 0))
+ printk("\n ");
+ printk("%08lx ", *sp++);
+ }
+ printk("\n");
+ show_trace(task, stack);
+}
+
+void dump_stack(void)
+{
+ show_stack(NULL, NULL);
+}
+EXPORT_SYMBOL(dump_stack);
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
new file mode 100644
index 0000000..840385e
--- /dev/null
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
+OUTPUT_ARCH(microblaze)
+ENTRY(_start)
+
+#include <asm-generic/vmlinux.lds.h>
+
+jiffies = jiffies_64 + 4;
+
+SECTIONS {
+ . = CONFIG_KERNEL_BASE_ADDR;
+
+ .text : {
+ _text = . ;
+ _stext = . ;
+ *(.text .text.*)
+ *(.fixup)
+
+ *(.exitcall.exit)
+ SCHED_TEXT
+ LOCK_TEXT
+ KPROBES_TEXT
+ . = ALIGN (4) ;
+ _etext = . ;
+ }
+
+ . = ALIGN (4) ;
+ _fdt_start = . ; /* place for fdt blob */
+ . = . + 0x4000;
+ _fdt_end = . ;
+
+ . = ALIGN(16);
+ RODATA
+ . = ALIGN(16);
+ __ex_table : {
+ __start___ex_table = .;
+ *(__ex_table)
+ __stop___ex_table = .;
+ }
+
+ /*
+ * sdata2 section can go anywhere, but must be word aligned
+ * and SDA2_BASE must point to the middle of it
+ */
+ .sdata2 : {
+ _ssrw = .;
+ . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */
+ *(.sdata2)
+ . = ALIGN(8);
+ _essrw = .;
+ _ssrw_size = _essrw - _ssrw;
+ _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
+ }
+
+ _sdata = . ;
+ .data ALIGN (4096) : { /* page aligned when MMU used - origin 0x4 */
+ *(.data)
+ }
+ . = ALIGN(32);
+ .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+ _edata = . ;
+
+ /* Reserve some low RAM for r0 based memory references */
+ . = ALIGN(0x4) ;
+ r0_ram = . ;
+ . = . + 4096; /* a page should be enough */
+
+ /* The initial task */
+ . = ALIGN(8192);
+ .data.init_task : { *(.data.init_task) }
+
+ /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
+ . = ALIGN(8);
+ .sdata : {
+ _ssro = .;
+ *(.sdata)
+ }
+
+ .sbss : {
+ _ssbss = .;
+ *(.sbss)
+ _esbss = .;
+ _essro = .;
+ _ssro_size = _essro - _ssro ;
+ _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
+ }
+
+ __init_begin = .;
+
+ . = ALIGN(4096);
+ .init.text : {
+ _sinittext = . ;
+ *(.init.text)
+ *(.exit.text)
+ *(.exit.data)
+ _einittext = .;
+ }
+
+ .init.data : { *(.init.data) }
+
+ . = ALIGN(4);
+ .init.ivt : {
+ __ivt_start = .;
+ *(.init.ivt)
+ __ivt_end = .;
+ }
+
+ .init.setup : {
+ __setup_start = .;
+ *(.init.setup)
+ __setup_end = .;
+ }
+
+ .initcall.init : {
+ __initcall_start = .;
+ INITCALLS
+ __initcall_end = .;
+ }
+
+ .con_initcall.init : {
+ __con_initcall_start = .;
+ *(.con_initcall.init)
+ __con_initcall_end = .;
+ }
+
+ __init_end_before_initramfs = .;
+
+ .init.ramfs ALIGN(4096) : {
+ __initramfs_start = .;
+ *(.init.ramfs)
+ __initramfs_end = .;
+ . = ALIGN(4);
+ LONG(0);
+/*
+ * FIXME this can break initramfs for MMU.
+ * Pad init.ramfs up to page boundary,
+ * so that __init_end == __bss_start. This will make image.elf
+ * consistent with the image.bin
+ */
+ /* . = ALIGN(4096); */
+ }
+ __init_end = .;
+
+ .bss ALIGN (4096) : { /* page aligned when MMU used */
+ __bss_start = . ;
+ *(.bss*)
+ *(COMMON)
+ . = ALIGN (4) ;
+ __bss_stop = . ;
+ _ebss = . ;
+ }
+ . = ALIGN(4096);
+ _end = .;
+}
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
new file mode 100644
index 0000000..d27126b
--- /dev/null
+++ b/arch/microblaze/lib/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile
+#
+
+lib-y := memset.o checksum.o
+
+ifeq ($(CONFIG_OPT_LIB_ASM),y)
+lib-y += fastcopy.o
+else
+lib-y += memcpy.o memmove.o
+endif
+
+lib-y += uaccess.o
diff --git a/arch/microblaze/lib/checksum.c b/arch/microblaze/lib/checksum.c
new file mode 100644
index 0000000..8093400
--- /dev/null
+++ b/arch/microblaze/lib/checksum.c
@@ -0,0 +1,163 @@
+/*
+ *
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * IP/TCP/UDP checksumming routines
+ *
+ * Authors: Jorge Cwik, <jorge@laser.satlink.net>
+ * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
+ * Tom May, <ftom@netcom.com>
+ * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
+ * Lots of code moved from tcp.c and ip.c; see those files
+ * for more names.
+ *
+ * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek:
+ * Fixed some nasty bugs, causing some horrible crashes.
+ * A: At some points, the sum (%0) was used as
+ * length-counter instead of the length counter
+ * (%1). Thanks to Roman Hodek for pointing this out.
+ * B: GCC seems to mess up if one uses too many
+ * data-registers to hold input values and one tries to
+ * specify d0 and d1 as scratch registers. Letting gcc
+ * choose these registers itself solves the problem.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access
+ kills, so most of the assembly has to go. */
+
+#include <net/checksum.h>
+#include <asm/checksum.h>
+#include <linux/module.h>
+
+static inline unsigned short from32to16(unsigned long x)
+{
+ /* add up 16-bit and 16-bit for 16+c bit */
+ x = (x & 0xffff) + (x >> 16);
+ /* add up carry.. */
+ x = (x & 0xffff) + (x >> 16);
+ return x;
+}
+
+static unsigned int do_csum(const unsigned char *buff, int len)
+{
+ int odd, count;
+ unsigned long result = 0;
+
+ if (len <= 0)
+ goto out;
+ odd = 1 & (unsigned long) buff;
+ if (odd) {
+ result = *buff;
+ len--;
+ buff++;
+ }
+ count = len >> 1; /* nr of 16-bit words.. */
+ if (count) {
+ if (2 & (unsigned long) buff) {
+ result += *(unsigned short *) buff;
+ count--;
+ len -= 2;
+ buff += 2;
+ }
+ count >>= 1; /* nr of 32-bit words.. */
+ if (count) {
+ unsigned long carry = 0;
+ do {
+ unsigned long w = *(unsigned long *) buff;
+ count--;
+ buff += 4;
+ result += carry;
+ result += w;
+ carry = (w > result);
+ } while (count);
+ result += carry;
+ result = (result & 0xffff) + (result >> 16);
+ }
+ if (len & 2) {
+ result += *(unsigned short *) buff;
+ buff += 2;
+ }
+ }
+ if (len & 1)
+ result += (*buff << 8);
+ result = from32to16(result);
+ if (odd)
+ result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+ return result;
+}
+
+/*
+ * This is a version of ip_compute_csum() optimized for IP headers,
+ * which always checksum on 4 octet boundaries.
+ */
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+ return (__force __sum16)~do_csum(iph, ihl*4);
+}
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+ unsigned int result = do_csum(buff, len);
+
+ /* add in old sum, and carry.. */
+ result += sum;
+ if (sum > result)
+ result += 1;
+ return result;
+}
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+__sum16 ip_compute_csum(const unsigned char *buff, int len)
+{
+ return ~do_csum(buff, len);
+}
+EXPORT_SYMBOL(ip_compute_csum);
+
+/*
+ * copy from fs while checksumming, otherwise like csum_partial
+ */
+__wsum
+csum_partial_copy_from_user(const char __user *src, char *dst, int len,
+ int sum, int *csum_err)
+{
+ if (csum_err)
+ *csum_err = 0;
+ memcpy(dst, src, len);
+ return csum_partial(dst, len, sum);
+}
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
+/*
+ * copy from ds while checksumming, otherwise like csum_partial
+ */
+__wsum
+csum_partial_copy(const char *src, char *dst, int len, int sum)
+{
+ memcpy(dst, src, len);
+ return csum_partial(dst, len, sum);
+}
+EXPORT_SYMBOL(csum_partial_copy);
diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
new file mode 100644
index 0000000..02e3ab4
--- /dev/null
+++ b/arch/microblaze/lib/fastcopy.S
@@ -0,0 +1,662 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2008 Jim Law - Iris LP All rights reserved.
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Jim Law <jlaw@irispower.com>
+ *
+ * intended to replace:
+ * memcpy in memcpy.c and
+ * memmove in memmove.c
+ * ... in arch/microblaze/lib
+ *
+ *
+ * assly_fastcopy.S
+ *
+ * Attempt at quicker memcpy and memmove for MicroBlaze
+ * Input : Operand1 in Reg r5 - destination address
+ * Operand2 in Reg r6 - source address
+ * Operand3 in Reg r7 - number of bytes to transfer
+ * Output: Result in Reg r3 - starting destinaition address
+ *
+ *
+ * Explanation:
+ * Perform (possibly unaligned) copy of a block of memory
+ * between mem locations with size of xfer spec'd in bytes
+ */
+
+#include <linux/linkage.h>
+
+ .globl memcpy
+ .ent memcpy
+
+memcpy:
+fast_memcpy_ascending:
+ /* move d to return register as value of function */
+ addi r3, r5, 0
+
+ addi r4, r0, 4 /* n = 4 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ blti r4, a_xfer_end /* if n < 0, less than one word to transfer */
+
+ /* transfer first 0~3 bytes to get aligned dest address */
+ andi r4, r5, 3 /* n = d & 3 */
+ /* if zero, destination already aligned */
+ beqi r4, a_dalign_done
+ /* n = 4 - n (yields 3, 2, 1 transfers for 1, 2, 3 addr offset) */
+ rsubi r4, r4, 4
+ rsub r7, r4, r7 /* c = c - n adjust c */
+
+a_xfer_first_loop:
+ /* if no bytes left to transfer, transfer the bulk */
+ beqi r4, a_dalign_done
+ lbui r11, r6, 0 /* h = *s */
+ sbi r11, r5, 0 /* *d = h */
+ addi r6, r6, 1 /* s++ */
+ addi r5, r5, 1 /* d++ */
+ brid a_xfer_first_loop /* loop */
+ addi r4, r4, -1 /* n-- (IN DELAY SLOT) */
+
+a_dalign_done:
+ addi r4, r0, 32 /* n = 32 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ /* if n < 0, less than one block to transfer */
+ blti r4, a_block_done
+
+a_block_xfer:
+ andi r4, r7, 0xffffffe0 /* n = c & ~31 */
+ rsub r7, r4, r7 /* c = c - n */
+
+ andi r9, r6, 3 /* t1 = s & 3 */
+ /* if temp != 0, unaligned transfers needed */
+ bnei r9, a_block_unaligned
+
+a_block_aligned:
+ lwi r9, r6, 0 /* t1 = *(s + 0) */
+ lwi r10, r6, 4 /* t2 = *(s + 4) */
+ lwi r11, r6, 8 /* t3 = *(s + 8) */
+ lwi r12, r6, 12 /* t4 = *(s + 12) */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ swi r10, r5, 4 /* *(d + 4) = t2 */
+ swi r11, r5, 8 /* *(d + 8) = t3 */
+ swi r12, r5, 12 /* *(d + 12) = t4 */
+ lwi r9, r6, 16 /* t1 = *(s + 16) */
+ lwi r10, r6, 20 /* t2 = *(s + 20) */
+ lwi r11, r6, 24 /* t3 = *(s + 24) */
+ lwi r12, r6, 28 /* t4 = *(s + 28) */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ swi r10, r5, 20 /* *(d + 20) = t2 */
+ swi r11, r5, 24 /* *(d + 24) = t3 */
+ swi r12, r5, 28 /* *(d + 28) = t4 */
+ addi r6, r6, 32 /* s = s + 32 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, a_block_aligned /* while (n) loop */
+ addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
+ bri a_block_done
+
+a_block_unaligned:
+ andi r8, r6, 0xfffffffc /* as = s & ~3 */
+ add r6, r6, r4 /* s = s + n */
+ lwi r11, r8, 0 /* h = *(as + 0) */
+
+ addi r9, r9, -1
+ beqi r9, a_block_u1 /* t1 was 1 => 1 byte offset */
+ addi r9, r9, -1
+ beqi r9, a_block_u2 /* t1 was 2 => 2 byte offset */
+
+a_block_u3:
+ bslli r11, r11, 24 /* h = h << 24 */
+a_bu3_loop:
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 12) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ lwi r12, r8, 32 /* v = *(as + 32) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ addi r8, r8, 32 /* as = as + 32 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, a_bu3_loop /* while (n) loop */
+ addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
+ bri a_block_done
+
+a_block_u1:
+ bslli r11, r11, 8 /* h = h << 8 */
+a_bu1_loop:
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 12) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ lwi r12, r8, 32 /* v = *(as + 32) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ addi r8, r8, 32 /* as = as + 32 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, a_bu1_loop /* while (n) loop */
+ addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
+ bri a_block_done
+
+a_block_u2:
+ bslli r11, r11, 16 /* h = h << 16 */
+a_bu2_loop:
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 12) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ lwi r12, r8, 32 /* v = *(as + 32) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ addi r8, r8, 32 /* as = as + 32 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, a_bu2_loop /* while (n) loop */
+ addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
+
+a_block_done:
+ addi r4, r0, 4 /* n = 4 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ blti r4, a_xfer_end /* if n < 0, less than one word to transfer */
+
+a_word_xfer:
+ andi r4, r7, 0xfffffffc /* n = c & ~3 */
+ addi r10, r0, 0 /* offset = 0 */
+
+ andi r9, r6, 3 /* t1 = s & 3 */
+ /* if temp != 0, unaligned transfers needed */
+ bnei r9, a_word_unaligned
+
+a_word_aligned:
+ lw r9, r6, r10 /* t1 = *(s+offset) */
+ sw r9, r5, r10 /* *(d+offset) = t1 */
+ addi r4, r4,-4 /* n-- */
+ bneid r4, a_word_aligned /* loop */
+ addi r10, r10, 4 /* offset++ (IN DELAY SLOT) */
+
+ bri a_word_done
+
+a_word_unaligned:
+ andi r8, r6, 0xfffffffc /* as = s & ~3 */
+ lwi r11, r8, 0 /* h = *(as + 0) */
+ addi r8, r8, 4 /* as = as + 4 */
+
+ addi r9, r9, -1
+ beqi r9, a_word_u1 /* t1 was 1 => 1 byte offset */
+ addi r9, r9, -1
+ beqi r9, a_word_u2 /* t1 was 2 => 2 byte offset */
+
+a_word_u3:
+ bslli r11, r11, 24 /* h = h << 24 */
+a_wu3_loop:
+ lw r12, r8, r10 /* v = *(as + offset) */
+ bsrli r9, r12, 8 /* t1 = v >> 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r10 /* *(d + offset) = t1 */
+ bslli r11, r12, 24 /* h = v << 24 */
+ addi r4, r4,-4 /* n = n - 4 */
+ bneid r4, a_wu3_loop /* while (n) loop */
+ addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
+
+ bri a_word_done
+
+a_word_u1:
+ bslli r11, r11, 8 /* h = h << 8 */
+a_wu1_loop:
+ lw r12, r8, r10 /* v = *(as + offset) */
+ bsrli r9, r12, 24 /* t1 = v >> 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r10 /* *(d + offset) = t1 */
+ bslli r11, r12, 8 /* h = v << 8 */
+ addi r4, r4,-4 /* n = n - 4 */
+ bneid r4, a_wu1_loop /* while (n) loop */
+ addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
+
+ bri a_word_done
+
+a_word_u2:
+ bslli r11, r11, 16 /* h = h << 16 */
+a_wu2_loop:
+ lw r12, r8, r10 /* v = *(as + offset) */
+ bsrli r9, r12, 16 /* t1 = v >> 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r10 /* *(d + offset) = t1 */
+ bslli r11, r12, 16 /* h = v << 16 */
+ addi r4, r4,-4 /* n = n - 4 */
+ bneid r4, a_wu2_loop /* while (n) loop */
+ addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
+
+a_word_done:
+ add r5, r5, r10 /* d = d + offset */
+ add r6, r6, r10 /* s = s + offset */
+ rsub r7, r10, r7 /* c = c - offset */
+
+a_xfer_end:
+a_xfer_end_loop:
+ beqi r7, a_done /* while (c) */
+ lbui r9, r6, 0 /* t1 = *s */
+ addi r6, r6, 1 /* s++ */
+ sbi r9, r5, 0 /* *d = t1 */
+ addi r7, r7, -1 /* c-- */
+ brid a_xfer_end_loop /* loop */
+ addi r5, r5, 1 /* d++ (IN DELAY SLOT) */
+
+a_done:
+ rtsd r15, 8
+ nop
+
+.end memcpy
+/*----------------------------------------------------------------------------*/
+ .globl memmove
+ .ent memmove
+
+memmove:
+ cmpu r4, r5, r6 /* n = s - d */
+ bgei r4,fast_memcpy_ascending
+
+fast_memcpy_descending:
+ /* move d to return register as value of function */
+ addi r3, r5, 0
+
+ add r5, r5, r7 /* d = d + c */
+ add r6, r6, r7 /* s = s + c */
+
+ addi r4, r0, 4 /* n = 4 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ blti r4,d_xfer_end /* if n < 0, less than one word to transfer */
+
+ /* transfer first 0~3 bytes to get aligned dest address */
+ andi r4, r5, 3 /* n = d & 3 */
+ /* if zero, destination already aligned */
+ beqi r4,d_dalign_done
+ rsub r7, r4, r7 /* c = c - n adjust c */
+
+d_xfer_first_loop:
+ /* if no bytes left to transfer, transfer the bulk */
+ beqi r4,d_dalign_done
+ addi r6, r6, -1 /* s-- */
+ addi r5, r5, -1 /* d-- */
+ lbui r11, r6, 0 /* h = *s */
+ sbi r11, r5, 0 /* *d = h */
+ brid d_xfer_first_loop /* loop */
+ addi r4, r4, -1 /* n-- (IN DELAY SLOT) */
+
+d_dalign_done:
+ addi r4, r0, 32 /* n = 32 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ /* if n < 0, less than one block to transfer */
+ blti r4, d_block_done
+
+d_block_xfer:
+ andi r4, r7, 0xffffffe0 /* n = c & ~31 */
+ rsub r7, r4, r7 /* c = c - n */
+
+ andi r9, r6, 3 /* t1 = s & 3 */
+ /* if temp != 0, unaligned transfers needed */
+ bnei r9, d_block_unaligned
+
+d_block_aligned:
+ addi r6, r6, -32 /* s = s - 32 */
+ addi r5, r5, -32 /* d = d - 32 */
+ lwi r9, r6, 28 /* t1 = *(s + 28) */
+ lwi r10, r6, 24 /* t2 = *(s + 24) */
+ lwi r11, r6, 20 /* t3 = *(s + 20) */
+ lwi r12, r6, 16 /* t4 = *(s + 16) */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ swi r10, r5, 24 /* *(d + 24) = t2 */
+ swi r11, r5, 20 /* *(d + 20) = t3 */
+ swi r12, r5, 16 /* *(d + 16) = t4 */
+ lwi r9, r6, 12 /* t1 = *(s + 12) */
+ lwi r10, r6, 8 /* t2 = *(s + 8) */
+ lwi r11, r6, 4 /* t3 = *(s + 4) */
+ lwi r12, r6, 0 /* t4 = *(s + 0) */
+ swi r9, r5, 12 /* *(d + 12) = t1 */
+ swi r10, r5, 8 /* *(d + 8) = t2 */
+ swi r11, r5, 4 /* *(d + 4) = t3 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, d_block_aligned /* while (n) loop */
+ swi r12, r5, 0 /* *(d + 0) = t4 (IN DELAY SLOT) */
+ bri d_block_done
+
+d_block_unaligned:
+ andi r8, r6, 0xfffffffc /* as = s & ~3 */
+ rsub r6, r4, r6 /* s = s - n */
+ lwi r11, r8, 0 /* h = *(as + 0) */
+
+ addi r9, r9, -1
+ beqi r9,d_block_u1 /* t1 was 1 => 1 byte offset */
+ addi r9, r9, -1
+ beqi r9,d_block_u2 /* t1 was 2 => 2 byte offset */
+
+d_block_u3:
+ bsrli r11, r11, 8 /* h = h >> 8 */
+d_bu3_loop:
+ addi r8, r8, -32 /* as = as - 32 */
+ addi r5, r5, -32 /* d = d - 32 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 112) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bsrli r11, r12, 8 /* h = v >> 8 */
+ lwi r12, r8, 0 /* v = *(as + 0) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, d_bu3_loop /* while (n) loop */
+ bsrli r11, r12, 8 /* h = v >> 8 (IN DELAY SLOT) */
+ bri d_block_done
+
+d_block_u1:
+ bsrli r11, r11, 24 /* h = h >> 24 */
+d_bu1_loop:
+ addi r8, r8, -32 /* as = as - 32 */
+ addi r5, r5, -32 /* d = d - 32 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 112) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bsrli r11, r12, 24 /* h = v >> 24 */
+ lwi r12, r8, 0 /* v = *(as + 0) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, d_bu1_loop /* while (n) loop */
+ bsrli r11, r12, 24 /* h = v >> 24 (IN DELAY SLOT) */
+ bri d_block_done
+
+d_block_u2:
+ bsrli r11, r11, 16 /* h = h >> 16 */
+d_bu2_loop:
+ addi r8, r8, -32 /* as = as - 32 */
+ addi r5, r5, -32 /* d = d - 32 */
+ lwi r12, r8, 28 /* v = *(as + 28) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 28 /* *(d + 28) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 24 /* v = *(as + 24) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 24 /* *(d + 24) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 20 /* v = *(as + 20) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 20 /* *(d + 20) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 16 /* v = *(as + 16) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 16 /* *(d + 16) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 12 /* v = *(as + 12) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 12 /* *(d + 112) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 8 /* v = *(as + 8) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 8 /* *(d + 8) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 4 /* v = *(as + 4) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 4 /* *(d + 4) = t1 */
+ bsrli r11, r12, 16 /* h = v >> 16 */
+ lwi r12, r8, 0 /* v = *(as + 0) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ swi r9, r5, 0 /* *(d + 0) = t1 */
+ addi r4, r4, -32 /* n = n - 32 */
+ bneid r4, d_bu2_loop /* while (n) loop */
+ bsrli r11, r12, 16 /* h = v >> 16 (IN DELAY SLOT) */
+
+d_block_done:
+ addi r4, r0, 4 /* n = 4 */
+ cmpu r4, r4, r7 /* n = c - n (unsigned) */
+ blti r4,d_xfer_end /* if n < 0, less than one word to transfer */
+
+d_word_xfer:
+ andi r4, r7, 0xfffffffc /* n = c & ~3 */
+ rsub r5, r4, r5 /* d = d - n */
+ rsub r6, r4, r6 /* s = s - n */
+ rsub r7, r4, r7 /* c = c - n */
+
+ andi r9, r6, 3 /* t1 = s & 3 */
+ /* if temp != 0, unaligned transfers needed */
+ bnei r9, d_word_unaligned
+
+d_word_aligned:
+ addi r4, r4,-4 /* n-- */
+ lw r9, r6, r4 /* t1 = *(s+n) */
+ bneid r4, d_word_aligned /* loop */
+ sw r9, r5, r4 /* *(d+n) = t1 (IN DELAY SLOT) */
+
+ bri d_word_done
+
+d_word_unaligned:
+ andi r8, r6, 0xfffffffc /* as = s & ~3 */
+ lw r11, r8, r4 /* h = *(as + n) */
+
+ addi r9, r9, -1
+ beqi r9,d_word_u1 /* t1 was 1 => 1 byte offset */
+ addi r9, r9, -1
+ beqi r9,d_word_u2 /* t1 was 2 => 2 byte offset */
+
+d_word_u3:
+ bsrli r11, r11, 8 /* h = h >> 8 */
+d_wu3_loop:
+ addi r4, r4,-4 /* n = n - 4 */
+ lw r12, r8, r4 /* v = *(as + n) */
+ bslli r9, r12, 24 /* t1 = v << 24 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r4 /* *(d + n) = t1 */
+ bneid r4, d_wu3_loop /* while (n) loop */
+ bsrli r11, r12, 8 /* h = v >> 8 (IN DELAY SLOT) */
+
+ bri d_word_done
+
+d_word_u1:
+ bsrli r11, r11, 24 /* h = h >> 24 */
+d_wu1_loop:
+ addi r4, r4,-4 /* n = n - 4 */
+ lw r12, r8, r4 /* v = *(as + n) */
+ bslli r9, r12, 8 /* t1 = v << 8 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r4 /* *(d + n) = t1 */
+ bneid r4, d_wu1_loop /* while (n) loop */
+ bsrli r11, r12, 24 /* h = v >> 24 (IN DELAY SLOT) */
+
+ bri d_word_done
+
+d_word_u2:
+ bsrli r11, r11, 16 /* h = h >> 16 */
+d_wu2_loop:
+ addi r4, r4,-4 /* n = n - 4 */
+ lw r12, r8, r4 /* v = *(as + n) */
+ bslli r9, r12, 16 /* t1 = v << 16 */
+ or r9, r11, r9 /* t1 = h | t1 */
+ sw r9, r5, r4 /* *(d + n) = t1 */
+ bneid r4, d_wu2_loop /* while (n) loop */
+ bsrli r11, r12, 16 /* h = v >> 16 (IN DELAY SLOT) */
+
+d_word_done:
+
+d_xfer_end:
+d_xfer_end_loop:
+ beqi r7, a_done /* while (c) */
+ addi r6, r6, -1 /* s-- */
+ lbui r9, r6, 0 /* t1 = *s */
+ addi r5, r5, -1 /* d-- */
+ sbi r9, r5, 0 /* *d = t1 */
+ brid d_xfer_end_loop /* loop */
+ addi r7, r7, -1 /* c-- (IN DELAY SLOT) */
+
+d_done:
+ rtsd r15, 8
+ nop
+
+.end memmove
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
new file mode 100644
index 0000000..5880119
--- /dev/null
+++ b/arch/microblaze/lib/memcpy.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memcpy on Microblaze
+ * This is generic C code to do efficient, alignment-aware memcpy.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel). Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+
+#include <linux/string.h>
+#include <asm/system.h>
+
+#ifdef __HAVE_ARCH_MEMCPY
+void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+ const char *src = v_src;
+ char *dst = v_dst;
+#ifndef CONFIG_OPT_LIB_FUNCTION
+ /* Simple, byte oriented memcpy. */
+ while (c--)
+ *dst++ = *src++;
+
+ return v_dst;
+#else
+ /* The following code tries to optimize the copy by using unsigned
+ * alignment. This will work fine if both source and destination are
+ * aligned on the same boundary. However, if they are aligned on
+ * different boundaries shifts will be necessary. This might result in
+ * bad performance on MicroBlaze systems without a barrel shifter.
+ */
+ const uint32_t *i_src;
+ uint32_t *i_dst;
+
+ if (c >= 4) {
+ unsigned value, buf_hold;
+
+ /* Align the dstination to a word boundry. */
+ /* This is done in an endian independant manner. */
+ switch ((unsigned long)dst & 3) {
+ case 1:
+ *dst++ = *src++;
+ --c;
+ case 2:
+ *dst++ = *src++;
+ --c;
+ case 3:
+ *dst++ = *src++;
+ --c;
+ }
+
+ i_dst = (void *)dst;
+
+ /* Choose a copy scheme based on the source */
+ /* alignment relative to dstination. */
+ switch ((unsigned long)src & 3) {
+ case 0x0: /* Both byte offsets are aligned */
+ i_src = (const void *)src;
+
+ for (; c >= 4; c -= 4)
+ *i_dst++ = *i_src++;
+
+ src = (const void *)i_src;
+ break;
+ case 0x1: /* Unaligned - Off by 1 */
+ /* Word align the source */
+ i_src = (const void *) ((unsigned)src & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *i_src++ << 8;
+
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | value >> 24;
+ buf_hold = value << 8;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src -= 3;
+ break;
+ case 0x2: /* Unaligned - Off by 2 */
+ /* Word align the source */
+ i_src = (const void *) ((unsigned)src & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *i_src++ << 16;
+
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | value >> 16;
+ buf_hold = value << 16;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src -= 2;
+ break;
+ case 0x3: /* Unaligned - Off by 3 */
+ /* Word align the source */
+ i_src = (const void *) ((unsigned)src & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *i_src++ << 24;
+
+ for (; c >= 4; c -= 4) {
+ value = *i_src++;
+ *i_dst++ = buf_hold | value >> 8;
+ buf_hold = value << 24;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src -= 1;
+ break;
+ }
+ dst = (void *)i_dst;
+ }
+
+ /* Finish off any remaining bytes */
+ /* simple fast copy, ... unless a cache boundry is crossed */
+ switch (c) {
+ case 3:
+ *dst++ = *src++;
+ case 2:
+ *dst++ = *src++;
+ case 1:
+ *dst++ = *src++;
+ }
+
+ return v_dst;
+#endif
+}
+EXPORT_SYMBOL(memcpy);
+#endif /* __HAVE_ARCH_MEMCPY */
+
+void *cacheable_memcpy(void *d, const void *s, __kernel_size_t c)
+{
+ return memcpy(d, s, c);
+}
diff --git a/arch/microblaze/lib/memmove.c b/arch/microblaze/lib/memmove.c
new file mode 100644
index 0000000..d4e9f49
--- /dev/null
+++ b/arch/microblaze/lib/memmove.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memcpy on Microblaze
+ * This is generic C code to do efficient, alignment-aware memmove.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel). Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#ifdef __HAVE_ARCH_MEMMOVE
+void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
+{
+ const char *src = v_src;
+ char *dst = v_dst;
+
+#ifdef CONFIG_OPT_LIB_FUNCTION
+ const uint32_t *i_src;
+ uint32_t *i_dst;
+#endif
+
+ if (!c)
+ return v_dst;
+
+ /* Use memcpy when source is higher than dest */
+ if (v_dst <= v_src)
+ return memcpy(v_dst, v_src, c);
+
+#ifndef CONFIG_OPT_LIB_FUNCTION
+ /* copy backwards, from end to beginning */
+ src += c;
+ dst += c;
+
+ /* Simple, byte oriented memmove. */
+ while (c--)
+ *--dst = *--src;
+
+ return v_dst;
+#else
+ /* The following code tries to optimize the copy by using unsigned
+ * alignment. This will work fine if both source and destination are
+ * aligned on the same boundary. However, if they are aligned on
+ * different boundaries shifts will be necessary. This might result in
+ * bad performance on MicroBlaze systems without a barrel shifter.
+ */
+ /* FIXME this part needs more test */
+ /* Do a descending copy - this is a bit trickier! */
+ dst += c;
+ src += c;
+
+ if (c >= 4) {
+ unsigned value, buf_hold;
+
+ /* Align the destination to a word boundry. */
+ /* This is done in an endian independant manner. */
+
+ switch ((unsigned long)dst & 3) {
+ case 3:
+ *--dst = *--src;
+ --c;
+ case 2:
+ *--dst = *--src;
+ --c;
+ case 1:
+ *--dst = *--src;
+ --c;
+ }
+
+ i_dst = (void *)dst;
+ /* Choose a copy scheme based on the source */
+ /* alignment relative to dstination. */
+ switch ((unsigned long)src & 3) {
+ case 0x0: /* Both byte offsets are aligned */
+
+ i_src = (const void *)src;
+
+ for (; c >= 4; c -= 4)
+ *--i_dst = *--i_src;
+
+ src = (const void *)i_src;
+ break;
+ case 0x1: /* Unaligned - Off by 1 */
+ /* Word align the source */
+ i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *--i_src >> 24;
+
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold << 8 | value;
+ buf_hold = value >> 24;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src += 1;
+ break;
+ case 0x2: /* Unaligned - Off by 2 */
+ /* Word align the source */
+ i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *--i_src >> 16;
+
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold << 16 | value;
+ buf_hold = value >> 16;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src += 2;
+ break;
+ case 0x3: /* Unaligned - Off by 3 */
+ /* Word align the source */
+ i_src = (const void *) (((unsigned)src + 4) & ~3);
+
+ /* Load the holding buffer */
+ buf_hold = *--i_src >> 8;
+
+ for (; c >= 4; c -= 4) {
+ value = *--i_src;
+ *--i_dst = buf_hold << 24 | value;
+ buf_hold = value >> 8;
+ }
+
+ /* Realign the source */
+ src = (const void *)i_src;
+ src += 3;
+ break;
+ }
+ dst = (void *)i_dst;
+ }
+
+ /* simple fast copy, ... unless a cache boundry is crossed */
+ /* Finish off any remaining bytes */
+ switch (c) {
+ case 4:
+ *--dst = *--src;
+ case 3:
+ *--dst = *--src;
+ case 2:
+ *--dst = *--src;
+ case 1:
+ *--dst = *--src;
+ }
+ return v_dst;
+#endif
+}
+EXPORT_SYMBOL(memmove);
+#endif /* __HAVE_ARCH_MEMMOVE */
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
new file mode 100644
index 0000000..941dc8f
--- /dev/null
+++ b/arch/microblaze/lib/memset.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2008-2009 PetaLogix
+ * Copyright (C) 2007 John Williams
+ *
+ * Reasonably optimised generic C-code for memset on Microblaze
+ * This is generic C code to do efficient, alignment-aware memcpy.
+ *
+ * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
+ * http://www.embedded.com/showArticle.jhtml?articleID=19205567
+ *
+ * Attempts were made, unsuccesfully, to contact the original
+ * author of this code (Michael Morrow, Intel). Below is the original
+ * copyright notice.
+ *
+ * This software has been developed by Intel Corporation.
+ * Intel specifically disclaims all warranties, express or
+ * implied, and all liability, including consequential and
+ * other indirect damages, for the use of this program, including
+ * liability for infringement of any proprietary rights,
+ * and including the warranties of merchantability and fitness
+ * for a particular purpose. Intel does not assume any
+ * responsibility for and errors which may appear in this program
+ * not any responsibility to update it.
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/compiler.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#ifdef __HAVE_ARCH_MEMSET
+void *memset(void *v_src, int c, __kernel_size_t n)
+{
+
+ char *src = v_src;
+#ifdef CONFIG_OPT_LIB_FUNCTION
+ uint32_t *i_src;
+ uint32_t w32;
+#endif
+ /* Truncate c to 8 bits */
+ c = (c & 0xFF);
+
+#ifdef CONFIG_OPT_LIB_FUNCTION
+ /* Make a repeating word out of it */
+ w32 = c;
+ w32 |= w32 << 8;
+ w32 |= w32 << 16;
+
+ if (n >= 4) {
+ /* Align the destination to a word boundary */
+ /* This is done in an endian independant manner */
+ switch ((unsigned) src & 3) {
+ case 1:
+ *src++ = c;
+ --n;
+ case 2:
+ *src++ = c;
+ --n;
+ case 3:
+ *src++ = c;
+ --n;
+ }
+
+ i_src = (void *)src;
+
+ /* Do as many full-word copies as we can */
+ for (; n >= 4; n -= 4)
+ *i_src++ = w32;
+
+ src = (void *)i_src;
+ }
+#endif
+ /* Simple, byte oriented memset or the rest of count. */
+ while (n--)
+ *src++ = c;
+
+ return v_src;
+}
+EXPORT_SYMBOL(memset);
+#endif /* __HAVE_ARCH_MEMSET */
diff --git a/arch/microblaze/lib/uaccess.c b/arch/microblaze/lib/uaccess.c
new file mode 100644
index 0000000..8eb9df5
--- /dev/null
+++ b/arch/microblaze/lib/uaccess.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/string.h>
+#include <asm/uaccess.h>
+
+#include <asm/bug.h>
+
+long strnlen_user(const char __user *src, long count)
+{
+ return strlen(src) + 1;
+}
+
+#define __do_strncpy_from_user(dst, src, count, res) \
+ do { \
+ char *tmp; \
+ strncpy(dst, src, count); \
+ for (tmp = dst; *tmp && count > 0; tmp++, count--) \
+ ; \
+ res = (tmp - dst); \
+ } while (0)
+
+long __strncpy_from_user(char *dst, const char __user *src, long count)
+{
+ long res;
+ __do_strncpy_from_user(dst, src, count, res);
+ return res;
+}
+
+long strncpy_from_user(char *dst, const char __user *src, long count)
+{
+ long res = -EFAULT;
+ if (access_ok(VERIFY_READ, src, 1))
+ __do_strncpy_from_user(dst, src, count, res);
+ return res;
+}
diff --git a/arch/microblaze/mm/Makefile b/arch/microblaze/mm/Makefile
new file mode 100644
index 0000000..bf9e447
--- /dev/null
+++ b/arch/microblaze/mm/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile
+#
+
+obj-y := init.o
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
new file mode 100644
index 0000000..b0c8213
--- /dev/null
+++ b/arch/microblaze/mm/init.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/bootmem.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/lmb.h>
+#include <linux/mm.h> /* mem_init */
+#include <linux/initrd.h>
+#include <linux/pagemap.h>
+#include <linux/pfn.h>
+#include <linux/swap.h>
+
+#include <asm/page.h>
+#include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/sections.h>
+#include <asm/tlb.h>
+
+unsigned int __page_offset;
+/* EXPORT_SYMBOL(__page_offset); */
+
+char *klimit = _end;
+
+/*
+ * Initialize the bootmem system and give it all the memory we
+ * have available.
+ */
+unsigned int memory_start;
+unsigned int memory_end; /* due to mm/nommu.c */
+unsigned int memory_size;
+
+/*
+ * paging_init() sets up the page tables - in fact we've already done this.
+ */
+static void __init paging_init(void)
+{
+ int i;
+ unsigned long zones_size[MAX_NR_ZONES];
+
+ /*
+ * old: we can DMA to/from any address.put all page into ZONE_DMA
+ * We use only ZONE_NORMAL
+ */
+ zones_size[ZONE_NORMAL] = max_mapnr;
+
+ /* every other zones are empty */
+ for (i = 1; i < MAX_NR_ZONES; i++)
+ zones_size[i] = 0;
+
+ free_area_init(zones_size);
+}
+
+void __init setup_memory(void)
+{
+ int i;
+ unsigned long map_size;
+ u32 kernel_align_start, kernel_align_size;
+
+ /* Find main memory where is the kernel */
+ for (i = 0; i < lmb.memory.cnt; i++) {
+ memory_start = (u32) lmb.memory.region[i].base;
+ memory_end = (u32) lmb.memory.region[i].base
+ + (u32) lmb.memory.region[i].size;
+ if ((memory_start <= (u32)_text) &&
+ ((u32)_text <= memory_end)) {
+ memory_size = memory_end - memory_start;
+ PAGE_OFFSET = memory_start;
+ printk(KERN_INFO "%s: Main mem: 0x%x-0x%x, "
+ "size 0x%08x\n", __func__, memory_start,
+ memory_end, memory_size);
+ break;
+ }
+ }
+
+ if (!memory_start || !memory_end) {
+ panic("%s: Missing memory setting 0x%08x-0x%08x\n",
+ __func__, memory_start, memory_end);
+ }
+
+ /* reservation of region where is the kernel */
+ kernel_align_start = PAGE_DOWN((u32)_text);
+ /* ALIGN can be remove because _end in vmlinux.lds.S is align */
+ kernel_align_size = PAGE_UP((u32)klimit) - kernel_align_start;
+ lmb_reserve(kernel_align_start, kernel_align_size);
+ printk(KERN_INFO "%s: kernel addr=0x%08x-0x%08x size=0x%08x\n",
+ __func__, kernel_align_start, kernel_align_start
+ + kernel_align_size, kernel_align_size);
+
+ /*
+ * Kernel:
+ * start: base phys address of kernel - page align
+ * end: base phys address of kernel - page align
+ *
+ * min_low_pfn - the first page (mm/bootmem.c - node_boot_start)
+ * max_low_pfn
+ * max_mapnr - the first unused page (mm/bootmem.c - node_low_pfn)
+ * num_physpages - number of all pages
+ */
+
+ /* memory start is from the kernel end (aligned) to higher addr */
+ min_low_pfn = memory_start >> PAGE_SHIFT; /* minimum for allocation */
+ /* RAM is assumed contiguous */
+ num_physpages = max_mapnr = memory_size >> PAGE_SHIFT;
+ max_pfn = max_low_pfn = memory_end >> PAGE_SHIFT;
+
+ printk(KERN_INFO "%s: max_mapnr: %#lx\n", __func__, max_mapnr);
+ printk(KERN_INFO "%s: min_low_pfn: %#lx\n", __func__, min_low_pfn);
+ printk(KERN_INFO "%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
+
+ /*
+ * Find an area to use for the bootmem bitmap.
+ * We look for the first area which is at least
+ * 128kB in length (128kB is enough for a bitmap
+ * for 4GB of memory, using 4kB pages), plus 1 page
+ * (in case the address isn't page-aligned).
+ */
+ map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)),
+ min_low_pfn, max_low_pfn);
+
+ lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size);
+
+ /* free bootmem is whole main memory */
+ free_bootmem(memory_start, memory_size);
+
+ /* reserve allocate blocks */
+ for (i = 0; i < lmb.reserved.cnt; i++) {
+ pr_debug("reserved %d - 0x%08x-0x%08x\n", i,
+ (u32) lmb.reserved.region[i].base,
+ (u32) lmb_size_bytes(&lmb.reserved, i));
+ reserve_bootmem(lmb.reserved.region[i].base,
+ lmb_size_bytes(&lmb.reserved, i) - 1, BOOTMEM_DEFAULT);
+ }
+ paging_init();
+}
+
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
+{
+ unsigned long addr;
+
+ for (addr = begin; addr < end; addr += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ init_page_count(virt_to_page(addr));
+ memset((void *)addr, 0xcc, PAGE_SIZE);
+ free_page(addr);
+ totalram_pages++;
+ }
+ printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+ int pages = 0;
+ for (; start < end; start += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(start));
+ init_page_count(virt_to_page(start));
+ free_page(start);
+ totalram_pages++;
+ pages++;
+ }
+ printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
+}
+#endif
+
+void free_initmem(void)
+{
+ free_init_pages("unused kernel memory",
+ (unsigned long)(&__init_begin),
+ (unsigned long)(&__init_end));
+}
+
+/* FIXME from arch/powerpc/mm/mem.c*/
+void show_mem(void)
+{
+ printk(KERN_NOTICE "%s\n", __func__);
+}
+
+void __init mem_init(void)
+{
+ high_memory = (void *)__va(memory_end);
+ /* this will put all memory onto the freelists */
+ totalram_pages += free_all_bootmem();
+
+ printk(KERN_INFO "Memory: %luk/%luk available\n",
+ (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
+ num_physpages << (PAGE_SHIFT-10));
+}
+
+/* Check against bounds of physical memory */
+int ___range_ok(unsigned long addr, unsigned long size)
+{
+ return ((addr < memory_start) ||
+ ((addr + size) > memory_end));
+}
diff --git a/arch/microblaze/platform/Kconfig.platform b/arch/microblaze/platform/Kconfig.platform
new file mode 100644
index 0000000..8e9b475
--- /dev/null
+++ b/arch/microblaze/platform/Kconfig.platform
@@ -0,0 +1,85 @@
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+# Platform selection Kconfig menu for MicroBlaze targets
+#
+
+menu "Platform options"
+choice
+ prompt "Platform"
+ default PLATFORM_MICROBLAZE_AUTO
+ help
+ Choose which hardware board/platform you are targeting.
+
+config PLATFORM_GENERIC
+ bool "Generic"
+ help
+ Choose this option for the Generic platform.
+
+endchoice
+
+config SELFMOD
+ bool "Use self modified code for intc/timer"
+ depends on EXPERIMENTAL && NO_MMU
+ default n
+ help
+ This choice enables self-modified code for interrupt controller
+ and timer.
+
+config SELFMOD_INTC
+ bool "Use self modified code for intc"
+ depends on SELFMOD
+ default y
+ help
+ This choice enables self-modified code for interrupt controller.
+
+config SELFMOD_TIMER
+ bool "Use self modified code for timer"
+ depends on SELFMOD
+ default y
+ help
+ This choice enables self-modified code for timer.
+
+config OPT_LIB_FUNCTION
+ bool "Optimalized lib function"
+ default y
+ help
+ Allows turn on optimalized library function (memcpy and memmove).
+ They are optimized by using word alignment. This will work
+ fine if both source and destination are aligned on the same
+ boundary. However, if they are aligned on different boundaries
+ shifts will be necessary. This might result in bad performance
+ on MicroBlaze systems without a barrel shifter.
+
+config OPT_LIB_ASM
+ bool "Optimalized lib function ASM"
+ depends on OPT_LIB_FUNCTION
+ default n
+ help
+ Allows turn on optimalized library function (memcpy and memmove).
+ Function are written in asm code.
+
+# This is still a bit broken - disabling for now JW 20070504
+config ALLOW_EDIT_AUTO
+ bool "Permit Display/edit of Kconfig.auto platform settings"
+ default n
+ help
+ Allows the editing of auto-generated platform settings from
+ the Kconfig.auto file. Obviously this does not change the
+ underlying hardware, so be very careful if you go editing
+ these settings.
+
+ Also, if you enable this, and edit various Kconfig.auto
+ settings, YOUR CHANGES WILL BE LOST if you then disable it
+ again. You have been warned!
+
+ If unsure, say no.
+
+comment "Automatic platform settings from Kconfig.auto"
+ depends on ALLOW_EDIT_AUTO
+
+if PLATFORM_GENERIC=y
+ source "arch/microblaze/platform/generic/Kconfig.auto"
+endif
+
+endmenu
diff --git a/arch/microblaze/platform/Makefile b/arch/microblaze/platform/Makefile
new file mode 100644
index 0000000..ea1b75cc
--- /dev/null
+++ b/arch/microblaze/platform/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for arch/microblaze/platform directory
+#
+#obj-$(CONFIG_PLATFORM_GENERIC) += generic/
+
+obj-y += platform.o
diff --git a/arch/microblaze/platform/generic/Kconfig.auto b/arch/microblaze/platform/generic/Kconfig.auto
new file mode 100644
index 0000000..fbca22d
--- /dev/null
+++ b/arch/microblaze/platform/generic/Kconfig.auto
@@ -0,0 +1,62 @@
+#
+# (C) Copyright 2007 Michal Simek
+#
+# Michal SIMEK <monstr@monstr.eu>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+# Definitions for MICROBLAZE0
+comment "Definitions for MICROBLAZE0"
+ depends on ALLOW_EDIT_AUTO
+
+config KERNEL_BASE_ADDR
+ hex "Physical address where Linux Kernel is"
+ default "0x90000000"
+ help
+ BASE Address for kernel
+
+config XILINX_MICROBLAZE0_FAMILY
+ string "Targetted FPGA family" if ALLOW_EDIT_AUTO
+ default "virtex5"
+
+config XILINX_MICROBLAZE0_USE_MSR_INSTR
+ int "USE_MSR_INSTR range (0:1)" if ALLOW_EDIT_AUTO
+ default 1
+
+config XILINX_MICROBLAZE0_USE_PCMP_INSTR
+ int "USE_PCMP_INSTR range (0:1)" if ALLOW_EDIT_AUTO
+ default 1
+
+config XILINX_MICROBLAZE0_USE_BARREL
+ int "USE_BARREL range (0:1)" if ALLOW_EDIT_AUTO
+ default 1
+
+config XILINX_MICROBLAZE0_USE_DIV
+ int "USE_DIV range (0:1)" if ALLOW_EDIT_AUTO
+ default 1
+
+config XILINX_MICROBLAZE0_USE_HW_MUL
+ int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)" if ALLOW_EDIT_AUTO
+ default 2
+
+config XILINX_MICROBLAZE0_USE_FPU
+ int "USE_FPU values (0=NONE, 1=BASIC, 2=EXTENDED)" if ALLOW_EDIT_AUTO
+ default 2
+
+config XILINX_MICROBLAZE0_HW_VER
+ string "Core version number" if ALLOW_EDIT_AUTO
+ default 7.10.d
diff --git a/arch/microblaze/platform/generic/Makefile b/arch/microblaze/platform/generic/Makefile
new file mode 100644
index 0000000..9a8b1bd
--- /dev/null
+++ b/arch/microblaze/platform/generic/Makefile
@@ -0,0 +1,3 @@
+#
+# Empty Makefile to keep make clean happy
+#
diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts
new file mode 100644
index 0000000..29993f6
--- /dev/null
+++ b/arch/microblaze/platform/generic/system.dts
@@ -0,0 +1,332 @@
+/*
+ * Device Tree Generator version: 1.1
+ *
+ * (C) Copyright 2007-2008 Xilinx, Inc.
+ * (C) Copyright 2007-2009 Michal Simek
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * CAUTION: This file is automatically generated by libgen.
+ * Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
+ *
+ * XPS project directory: Xilinx-ML505-ll_temac-sgdma-MMU-FDT-edk101
+ */
+
+/dts-v1/;
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "xlnx,microblaze";
+ model = "testing";
+ DDR2_SDRAM: memory@90000000 {
+ device_type = "memory";
+ reg = < 0x90000000 0x10000000 >;
+ } ;
+ chosen {
+ bootargs = "console=ttyUL0,115200 highres=on";
+ linux,stdout-path = "/plb@0/serial@84000000";
+ } ;
+ cpus {
+ #address-cells = <1>;
+ #cpus = <0x1>;
+ #size-cells = <0>;
+ microblaze_0: cpu@0 {
+ clock-frequency = <125000000>;
+ compatible = "xlnx,microblaze-7.10.d";
+ d-cache-baseaddr = <0x90000000>;
+ d-cache-highaddr = <0x9fffffff>;
+ d-cache-line-size = <0x10>;
+ d-cache-size = <0x2000>;
+ device_type = "cpu";
+ i-cache-baseaddr = <0x90000000>;
+ i-cache-highaddr = <0x9fffffff>;
+ i-cache-line-size = <0x10>;
+ i-cache-size = <0x2000>;
+ model = "microblaze,7.10.d";
+ reg = <0>;
+ timebase-frequency = <125000000>;
+ xlnx,addr-tag-bits = <0xf>;
+ xlnx,allow-dcache-wr = <0x1>;
+ xlnx,allow-icache-wr = <0x1>;
+ xlnx,area-optimized = <0x0>;
+ xlnx,cache-byte-size = <0x2000>;
+ xlnx,d-lmb = <0x1>;
+ xlnx,d-opb = <0x0>;
+ xlnx,d-plb = <0x1>;
+ xlnx,data-size = <0x20>;
+ xlnx,dcache-addr-tag = <0xf>;
+ xlnx,dcache-always-used = <0x1>;
+ xlnx,dcache-byte-size = <0x2000>;
+ xlnx,dcache-line-len = <0x4>;
+ xlnx,dcache-use-fsl = <0x1>;
+ xlnx,debug-enabled = <0x1>;
+ xlnx,div-zero-exception = <0x1>;
+ xlnx,dopb-bus-exception = <0x0>;
+ xlnx,dynamic-bus-sizing = <0x1>;
+ xlnx,edge-is-positive = <0x1>;
+ xlnx,family = "virtex5";
+ xlnx,fpu-exception = <0x1>;
+ xlnx,fsl-data-size = <0x20>;
+ xlnx,fsl-exception = <0x0>;
+ xlnx,fsl-links = <0x0>;
+ xlnx,i-lmb = <0x1>;
+ xlnx,i-opb = <0x0>;
+ xlnx,i-plb = <0x1>;
+ xlnx,icache-always-used = <0x1>;
+ xlnx,icache-line-len = <0x4>;
+ xlnx,icache-use-fsl = <0x1>;
+ xlnx,ill-opcode-exception = <0x1>;
+ xlnx,instance = "microblaze_0";
+ xlnx,interconnect = <0x1>;
+ xlnx,interrupt-is-edge = <0x0>;
+ xlnx,iopb-bus-exception = <0x0>;
+ xlnx,mmu-dtlb-size = <0x4>;
+ xlnx,mmu-itlb-size = <0x2>;
+ xlnx,mmu-tlb-access = <0x3>;
+ xlnx,mmu-zones = <0x10>;
+ xlnx,number-of-pc-brk = <0x1>;
+ xlnx,number-of-rd-addr-brk = <0x0>;
+ xlnx,number-of-wr-addr-brk = <0x0>;
+ xlnx,opcode-0x0-illegal = <0x1>;
+ xlnx,pvr = <0x2>;
+ xlnx,pvr-user1 = <0x0>;
+ xlnx,pvr-user2 = <0x0>;
+ xlnx,reset-msr = <0x0>;
+ xlnx,sco = <0x0>;
+ xlnx,unaligned-exceptions = <0x1>;
+ xlnx,use-barrel = <0x1>;
+ xlnx,use-dcache = <0x1>;
+ xlnx,use-div = <0x1>;
+ xlnx,use-ext-brk = <0x1>;
+ xlnx,use-ext-nm-brk = <0x1>;
+ xlnx,use-extended-fsl-instr = <0x0>;
+ xlnx,use-fpu = <0x2>;
+ xlnx,use-hw-mul = <0x2>;
+ xlnx,use-icache = <0x1>;
+ xlnx,use-interrupt = <0x1>;
+ xlnx,use-mmu = <0x3>;
+ xlnx,use-msr-instr = <0x1>;
+ xlnx,use-pcmp-instr = <0x1>;
+ } ;
+ } ;
+ mb_plb: plb@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
+ ranges ;
+ FLASH: flash@a0000000 {
+ bank-width = <2>;
+ compatible = "xlnx,xps-mch-emc-2.00.a", "cfi-flash";
+ reg = < 0xa0000000 0x2000000 >;
+ xlnx,family = "virtex5";
+ xlnx,include-datawidth-matching-0 = <0x1>;
+ xlnx,include-datawidth-matching-1 = <0x0>;
+ xlnx,include-datawidth-matching-2 = <0x0>;
+ xlnx,include-datawidth-matching-3 = <0x0>;
+ xlnx,include-negedge-ioregs = <0x0>;
+ xlnx,include-plb-ipif = <0x1>;
+ xlnx,include-wrbuf = <0x1>;
+ xlnx,max-mem-width = <0x10>;
+ xlnx,mch-native-dwidth = <0x20>;
+ xlnx,mch-plb-clk-period-ps = <0x1f40>;
+ xlnx,mch-splb-awidth = <0x20>;
+ xlnx,mch0-accessbuf-depth = <0x10>;
+ xlnx,mch0-protocol = <0x0>;
+ xlnx,mch0-rddatabuf-depth = <0x10>;
+ xlnx,mch1-accessbuf-depth = <0x10>;
+ xlnx,mch1-protocol = <0x0>;
+ xlnx,mch1-rddatabuf-depth = <0x10>;
+ xlnx,mch2-accessbuf-depth = <0x10>;
+ xlnx,mch2-protocol = <0x0>;
+ xlnx,mch2-rddatabuf-depth = <0x10>;
+ xlnx,mch3-accessbuf-depth = <0x10>;
+ xlnx,mch3-protocol = <0x0>;
+ xlnx,mch3-rddatabuf-depth = <0x10>;
+ xlnx,mem0-width = <0x10>;
+ xlnx,mem1-width = <0x20>;
+ xlnx,mem2-width = <0x20>;
+ xlnx,mem3-width = <0x20>;
+ xlnx,num-banks-mem = <0x1>;
+ xlnx,num-channels = <0x0>;
+ xlnx,priority-mode = <0x0>;
+ xlnx,synch-mem-0 = <0x0>;
+ xlnx,synch-mem-1 = <0x0>;
+ xlnx,synch-mem-2 = <0x0>;
+ xlnx,synch-mem-3 = <0x0>;
+ xlnx,synch-pipedelay-0 = <0x2>;
+ xlnx,synch-pipedelay-1 = <0x2>;
+ xlnx,synch-pipedelay-2 = <0x2>;
+ xlnx,synch-pipedelay-3 = <0x2>;
+ xlnx,tavdv-ps-mem-0 = <0x1adb0>;
+ xlnx,tavdv-ps-mem-1 = <0x3a98>;
+ xlnx,tavdv-ps-mem-2 = <0x3a98>;
+ xlnx,tavdv-ps-mem-3 = <0x3a98>;
+ xlnx,tcedv-ps-mem-0 = <0x1adb0>;
+ xlnx,tcedv-ps-mem-1 = <0x3a98>;
+ xlnx,tcedv-ps-mem-2 = <0x3a98>;
+ xlnx,tcedv-ps-mem-3 = <0x3a98>;
+ xlnx,thzce-ps-mem-0 = <0x88b8>;
+ xlnx,thzce-ps-mem-1 = <0x1b58>;
+ xlnx,thzce-ps-mem-2 = <0x1b58>;
+ xlnx,thzce-ps-mem-3 = <0x1b58>;
+ xlnx,thzoe-ps-mem-0 = <0x1b58>;
+ xlnx,thzoe-ps-mem-1 = <0x1b58>;
+ xlnx,thzoe-ps-mem-2 = <0x1b58>;
+ xlnx,thzoe-ps-mem-3 = <0x1b58>;
+ xlnx,tlzwe-ps-mem-0 = <0x88b8>;
+ xlnx,tlzwe-ps-mem-1 = <0x0>;
+ xlnx,tlzwe-ps-mem-2 = <0x0>;
+ xlnx,tlzwe-ps-mem-3 = <0x0>;
+ xlnx,twc-ps-mem-0 = <0x2af8>;
+ xlnx,twc-ps-mem-1 = <0x3a98>;
+ xlnx,twc-ps-mem-2 = <0x3a98>;
+ xlnx,twc-ps-mem-3 = <0x3a98>;
+ xlnx,twp-ps-mem-0 = <0x11170>;
+ xlnx,twp-ps-mem-1 = <0x2ee0>;
+ xlnx,twp-ps-mem-2 = <0x2ee0>;
+ xlnx,twp-ps-mem-3 = <0x2ee0>;
+ xlnx,xcl0-linesize = <0x4>;
+ xlnx,xcl0-writexfer = <0x1>;
+ xlnx,xcl1-linesize = <0x4>;
+ xlnx,xcl1-writexfer = <0x1>;
+ xlnx,xcl2-linesize = <0x4>;
+ xlnx,xcl2-writexfer = <0x1>;
+ xlnx,xcl3-linesize = <0x4>;
+ xlnx,xcl3-writexfer = <0x1>;
+ } ;
+ Hard_Ethernet_MAC: xps-ll-temac@81c00000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "xlnx,compound";
+ ethernet@81c00000 {
+ compatible = "xlnx,xps-ll-temac-1.01.b";
+ device_type = "network";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 5 2 >;
+ llink-connected = <&PIM3>;
+ local-mac-address = [ 02 00 00 00 00 00 ];
+ reg = < 0x81c00000 0x40 >;
+ xlnx,bus2core-clk-ratio = <0x1>;
+ xlnx,phy-type = <0x1>;
+ xlnx,phyaddr = <0x1>;
+ xlnx,rxcsum = <0x0>;
+ xlnx,rxfifo = <0x1000>;
+ xlnx,temac-type = <0x0>;
+ xlnx,txcsum = <0x0>;
+ xlnx,txfifo = <0x1000>;
+ } ;
+ } ;
+ IIC_EEPROM: i2c@81600000 {
+ compatible = "xlnx,xps-iic-2.00.a";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 6 2 >;
+ reg = < 0x81600000 0x10000 >;
+ xlnx,clk-freq = <0x7735940>;
+ xlnx,family = "virtex5";
+ xlnx,gpo-width = <0x1>;
+ xlnx,iic-freq = <0x186a0>;
+ xlnx,scl-inertial-delay = <0x0>;
+ xlnx,sda-inertial-delay = <0x0>;
+ xlnx,ten-bit-adr = <0x0>;
+ } ;
+ LEDs_8Bit: gpio@81400000 {
+ compatible = "xlnx,xps-gpio-1.00.a";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 7 2 >;
+ reg = < 0x81400000 0x10000 >;
+ xlnx,all-inputs = <0x0>;
+ xlnx,all-inputs-2 = <0x0>;
+ xlnx,dout-default = <0x0>;
+ xlnx,dout-default-2 = <0x0>;
+ xlnx,family = "virtex5";
+ xlnx,gpio-width = <0x8>;
+ xlnx,interrupt-present = <0x1>;
+ xlnx,is-bidir = <0x1>;
+ xlnx,is-bidir-2 = <0x1>;
+ xlnx,is-dual = <0x0>;
+ xlnx,tri-default = <0xffffffff>;
+ xlnx,tri-default-2 = <0xffffffff>;
+ } ;
+ RS232_Uart_1: serial@84000000 {
+ clock-frequency = <125000000>;
+ compatible = "xlnx,xps-uartlite-1.00.a";
+ current-speed = <115200>;
+ device_type = "serial";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 8 0 >;
+ port-number = <0>;
+ reg = < 0x84000000 0x10000 >;
+ xlnx,baudrate = <0x1c200>;
+ xlnx,data-bits = <0x8>;
+ xlnx,family = "virtex5";
+ xlnx,odd-parity = <0x0>;
+ xlnx,use-parity = <0x0>;
+ } ;
+ SysACE_CompactFlash: sysace@83600000 {
+ compatible = "xlnx,xps-sysace-1.00.a";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 4 2 >;
+ reg = < 0x83600000 0x10000 >;
+ xlnx,family = "virtex5";
+ xlnx,mem-width = <0x10>;
+ } ;
+ debug_module: debug@84400000 {
+ compatible = "xlnx,mdm-1.00.d";
+ reg = < 0x84400000 0x10000 >;
+ xlnx,family = "virtex5";
+ xlnx,interconnect = <0x1>;
+ xlnx,jtag-chain = <0x2>;
+ xlnx,mb-dbg-ports = <0x1>;
+ xlnx,uart-width = <0x8>;
+ xlnx,use-uart = <0x1>;
+ xlnx,write-fsl-ports = <0x0>;
+ } ;
+ mpmc@90000000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "xlnx,mpmc-4.02.a";
+ PIM3: sdma@84600180 {
+ compatible = "xlnx,ll-dma-1.00.a";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 2 2 1 2 >;
+ reg = < 0x84600180 0x80 >;
+ } ;
+ } ;
+ xps_intc_0: interrupt-controller@81800000 {
+ #interrupt-cells = <0x2>;
+ compatible = "xlnx,xps-intc-1.00.a";
+ interrupt-controller ;
+ reg = < 0x81800000 0x10000 >;
+ xlnx,kind-of-intr = <0x100>;
+ xlnx,num-intr-inputs = <0x9>;
+ } ;
+ xps_timer_1: timer@83c00000 {
+ compatible = "xlnx,xps-timer-1.00.a";
+ interrupt-parent = <&xps_intc_0>;
+ interrupts = < 3 2 >;
+ reg = < 0x83c00000 0x10000 >;
+ xlnx,count-width = <0x20>;
+ xlnx,family = "virtex5";
+ xlnx,gen0-assert = <0x1>;
+ xlnx,gen1-assert = <0x1>;
+ xlnx,one-timer-only = <0x0>;
+ xlnx,trig0-assert = <0x1>;
+ xlnx,trig1-assert = <0x1>;
+ } ;
+ } ;
+} ;
diff --git a/arch/microblaze/platform/platform.c b/arch/microblaze/platform/platform.c
new file mode 100644
index 0000000..56e0234
--- /dev/null
+++ b/arch/microblaze/platform/platform.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2008 Michal Simek <monstr@monstr.eu>
+ *
+ * based on virtex.c file
+ *
+ * Copyright 2007 Secret Lab Technologies Ltd.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <asm/prom.h>
+
+static struct of_device_id xilinx_of_bus_ids[] __initdata = {
+ { .compatible = "simple-bus", },
+ { .compatible = "xlnx,plb-v46-1.00.a", },
+ { .compatible = "xlnx,opb-v20-1.10.c", },
+ { .compatible = "xlnx,opb-v20-1.10.b", },
+ { .compatible = "xlnx,compound", },
+ {}
+};
+
+static int __init microblaze_device_probe(void)
+{
+ of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
+ return 0;
+}
+device_initcall(microblaze_device_probe);
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index 3cb50d1..12ee8d5 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -80,6 +80,9 @@
/* Compact Flash GPIO pin */
#define CF_GPIO_NUM 13
+/* S1 button GPIO (shared with UART0_SIN) */
+#define GPIO_BTN_S1 1
+
extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
extern void rb532_gpio_set_istat(int bit, unsigned gpio);
extern void rb532_gpio_set_func(unsigned gpio);
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 4a5f05b..9f40e1f 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -200,26 +200,9 @@
.id = -1,
};
-static struct gpio_keys_button rb532_gpio_btn[] = {
- {
- .gpio = 1,
- .code = BTN_0,
- .desc = "S1",
- .active_low = 1,
- }
-};
-
-static struct gpio_keys_platform_data rb532_gpio_btn_data = {
- .buttons = rb532_gpio_btn,
- .nbuttons = ARRAY_SIZE(rb532_gpio_btn),
-};
-
static struct platform_device rb532_button = {
- .name = "gpio-keys",
+ .name = "rb532-button",
.id = -1,
- .dev = {
- .platform_data = &rb532_gpio_btn_data,
- }
};
static struct resource rb532_wdt_res[] = {
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h
index 414c50e..94942d6 100644
--- a/arch/powerpc/include/asm/parport.h
+++ b/arch/powerpc/include/asm/parport.h
@@ -29,7 +29,7 @@
prop = of_get_property(np, "interrupts", NULL);
if (!prop)
continue;
- if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL) != NULL)
+ if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL, 0) != NULL)
count++;
}
return count;
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index dcb667c..2eca5fe 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -82,6 +82,7 @@
select USE_GENERIC_SMP_HELPERS if SMP
select HAVE_SYSCALL_WRAPPERS
select HAVE_FUNCTION_TRACER
+ select HAVE_DEFAULT_NO_SPIN_MUTEXES
select HAVE_OPROFILE
select HAVE_KPROBES
select HAVE_KRETPROBES
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e4babe..e7390dd 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,6 +14,7 @@
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IOREMAP_PROT if MMU
select HAVE_ARCH_TRACEHOOK
+ select HAVE_DMA_API_DEBUG
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
@@ -21,7 +22,7 @@
<http://www.linux-sh.org/>.
config SUPERH32
- def_bool !SUPERH64
+ def_bool ARCH = "sh"
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_FUNCTION_TRACER
@@ -31,7 +32,7 @@
select ARCH_HIBERNATION_POSSIBLE if MMU
config SUPERH64
- def_bool y if CPU_SH5
+ def_bool ARCH = "sh64"
config ARCH_DEFCONFIG
string
@@ -187,6 +188,8 @@
bool
select ARCH_SUSPEND_POSSIBLE
+if SUPERH32
+
choice
prompt "Processor sub-type selection"
@@ -408,6 +411,15 @@
select SYS_SUPPORTS_NUMA
select SYS_SUPPORTS_CMT
+endchoice
+
+endif
+
+if SUPERH64
+
+choice
+ prompt "Processor sub-type selection"
+
# SH-5 Processor Support
config CPU_SUBTYPE_SH5_101
@@ -420,6 +432,8 @@
endchoice
+endif
+
source "arch/sh/mm/Kconfig"
source "arch/sh/Kconfig.cpu"
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 912458f..39e4691 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -349,6 +349,7 @@
static struct ov772x_camera_info ov7725_info = {
.buswidth = SOCAM_DATAWIDTH_8,
.flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
+ .edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
.link = {
.power = ov7725_power,
},
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index 8367d1d..beb88c4 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -2,6 +2,8 @@
* Renesas Technology Corp. SH7786 Urquell Support.
*
* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Based on board-sh7785lcr.c
* Copyright (C) 2008 Yoshihiro Shimoda
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -21,6 +23,32 @@
#include <asm/heartbeat.h>
#include <asm/sizes.h>
+/*
+ * bit 1234 5678
+ *----------------------------
+ * SW1 0101 0010 -> Pck 33MHz version
+ * (1101 0010) Pck 66MHz version
+ * SW2 0x1x xxxx -> little endian
+ * 29bit mode
+ * SW47 0001 1000 -> CS0 : on-board flash
+ * CS1 : SRAM, registers, LAN, PCMCIA
+ * 38400 bps for SCIF1
+ *
+ * Address
+ * 0x00000000 - 0x04000000 (CS0) Nor Flash
+ * 0x04000000 - 0x04200000 (CS1) SRAM
+ * 0x05000000 - 0x05800000 (CS1) on board register
+ * 0x05800000 - 0x06000000 (CS1) LAN91C111
+ * 0x06000000 - 0x06400000 (CS1) PCMCIA
+ * 0x08000000 - 0x10000000 (CS2-CS3) DDR3
+ * 0x10000000 - 0x14000000 (CS4) PCIe
+ * 0x14000000 - 0x14800000 (CS5) Core0 LRAM/URAM
+ * 0x14800000 - 0x15000000 (CS5) Core1 LRAM/URAM
+ * 0x18000000 - 0x1C000000 (CS6) ATA/NAND-Flash
+ * 0x1C000000 - (CS7) SH7786 Control register
+ */
+
+/* HeartBeat */
static struct resource heartbeat_resources[] = {
[0] = {
.start = BOARDREG(SLEDR),
@@ -43,6 +71,7 @@
.resource = heartbeat_resources,
};
+/* LAN91C111 */
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
};
@@ -69,6 +98,7 @@
},
};
+/* Nor Flash */
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "loader",
diff --git a/arch/sh/drivers/pci/ops-sh7785lcr.c b/arch/sh/drivers/pci/ops-sh7785lcr.c
index e8b7446..fb0869f 100644
--- a/arch/sh/drivers/pci/ops-sh7785lcr.c
+++ b/arch/sh/drivers/pci/ops-sh7785lcr.c
@@ -48,8 +48,13 @@
static struct sh4_pci_address_map sh7785_pci_map = {
.window0 = {
+#if defined(CONFIG_32BIT)
+ .base = SH7780_32BIT_DDR_BASE_ADDR,
+ .size = 0x40000000,
+#else
.base = SH7780_CS0_BASE_ADDR,
.size = 0x20000000,
+#endif
},
.flags = SH4_PCIC_NO_RESET,
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 97b2c98..93adc71 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -104,6 +104,8 @@
#define SH7780_CS5_BASE_ADDR (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE)
#define SH7780_CS6_BASE_ADDR (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE)
+#define SH7780_32BIT_DDR_BASE_ADDR 0x40000000
+
struct sh4_pci_address_map;
/* arch/sh/drivers/pci/pci-sh7780.c */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index e36c7b8..0d6ac7a1 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/dma-debug.h>
#include <asm/io.h>
static int __init pcibios_init(void)
@@ -43,6 +44,8 @@
pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
+ dma_debug_add_bus(&pci_bus_type);
+
return 0;
}
subsys_initcall(pcibios_init);
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 627315e..ea9d4f4 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
#include <asm-generic/dma-coherent.h>
@@ -38,16 +39,26 @@
void *ptr, size_t size,
enum dma_data_direction dir)
{
+ dma_addr_t addr = virt_to_phys(ptr);
+
#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
if (dev->bus == &pci_bus_type)
- return virt_to_phys(ptr);
+ return addr;
#endif
dma_cache_sync(dev, ptr, size, dir);
- return virt_to_phys(ptr);
+ debug_dma_map_page(dev, virt_to_page(ptr),
+ (unsigned long)ptr & ~PAGE_MASK, size,
+ dir, addr, true);
+
+ return addr;
}
-#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
+static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir)
+{
+ debug_dma_unmap_page(dev, addr, size, dir, true);
+}
static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
@@ -59,12 +70,19 @@
dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
#endif
sg[i].dma_address = sg_phys(&sg[i]);
+ sg[i].dma_length = sg[i].length;
}
+ debug_dma_map_sg(dev, sg, nents, i, dir);
+
return nents;
}
-#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir)
+{
+ debug_dma_unmap_sg(dev, sg, nents, dir);
+}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
@@ -111,6 +129,7 @@
dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
#endif
sg[i].dma_address = sg_phys(&sg[i]);
+ sg[i].dma_length = sg[i].length;
}
}
@@ -119,6 +138,7 @@
enum dma_data_direction dir)
{
dma_sync_single(dev, dma_handle, size, dir);
+ debug_dma_sync_single_for_cpu(dev, dma_handle, size, dir);
}
static inline void dma_sync_single_for_device(struct device *dev,
@@ -127,6 +147,7 @@
enum dma_data_direction dir)
{
dma_sync_single(dev, dma_handle, size, dir);
+ debug_dma_sync_single_for_device(dev, dma_handle, size, dir);
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
@@ -136,6 +157,8 @@
enum dma_data_direction direction)
{
dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+ debug_dma_sync_single_range_for_cpu(dev, dma_handle,
+ offset, size, direction);
}
static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -145,6 +168,8 @@
enum dma_data_direction direction)
{
dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+ debug_dma_sync_single_range_for_device(dev, dma_handle,
+ offset, size, direction);
}
@@ -153,6 +178,7 @@
enum dma_data_direction dir)
{
dma_sync_sg(dev, sg, nelems, dir);
+ debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
}
static inline void dma_sync_sg_for_device(struct device *dev,
@@ -160,9 +186,9 @@
enum dma_data_direction dir)
{
dma_sync_sg(dev, sg, nelems, dir);
+ debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
}
-
static inline int dma_get_cache_alignment(void)
{
/*
diff --git a/arch/sh/include/asm/scatterlist.h b/arch/sh/include/asm/scatterlist.h
index 2084d03..c693d26 100644
--- a/arch/sh/include/asm/scatterlist.h
+++ b/arch/sh/include/asm/scatterlist.h
@@ -5,12 +5,13 @@
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
- unsigned long sg_magic;
+ unsigned long sg_magic;
#endif
- unsigned long page_link;
- unsigned int offset;/* for highmem, page offset */
- dma_addr_t dma_address;
- unsigned int length;
+ unsigned long page_link;
+ unsigned int offset; /* for highmem, page offset */
+ unsigned int length;
+ dma_addr_t dma_address;
+ unsigned int dma_length;
};
#define ISA_DMA_THRESHOLD PHYS_ADDR_MASK
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index a3f2395..8489a09 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -37,8 +37,11 @@
#define pcibus_to_node(bus) ((void)(bus), -1)
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
CPU_MASK_ALL : \
- node_to_cpumask(pcibus_to_node(bus)) \
- )
+ node_to_cpumask(pcibus_to_node(bus)))
+#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
+ CPU_MASK_ALL_PTR : \
+ cpumask_of_node(pcibus_to_node(bus)))
+
#endif
#include <asm-generic/topology.h>
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index d52c000..2efb819 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -341,8 +341,10 @@
#define __NR_dup3 330
#define __NR_pipe2 331
#define __NR_inotify_init1 332
+#define __NR_preadv 333
+#define __NR_pwritev 334
-#define NR_syscalls 333
+#define NR_syscalls 335
#ifdef __KERNEL__
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 7c54e91..6eb9d29 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -381,10 +381,12 @@
#define __NR_dup3 358
#define __NR_pipe2 359
#define __NR_inotify_init1 360
+#define __NR_preadv 361
+#define __NR_pwritev 362
#ifdef __KERNEL__
-#define NR_syscalls 361
+#define NR_syscalls 363
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 5a47e1c..90e8cff 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -143,14 +143,14 @@
* Set the PHY and PLL enable bit
*/
__raw_writel(PHY_ENB | PLL_ENB, USBPCTL1);
- while (i-- &&
- ((__raw_readl(USBST) & ACT_PLL_STATUS) != ACT_PLL_STATUS))
+ while (i--) {
+ if (ACT_PLL_STATUS == (__raw_readl(USBST) & ACT_PLL_STATUS)) {
+ /* Set the PHY RST bit */
+ __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
+ printk(KERN_INFO "sh7786 usb setup done\n");
+ break;
+ }
cpu_relax();
-
- if (i) {
- /* Set the PHY RST bit */
- __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
- printk(KERN_INFO "sh7786 usb setup done\n");
}
}
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index e67c173..05202ed 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -349,3 +349,5 @@
.long sys_dup3 /* 330 */
.long sys_pipe2
.long sys_inotify_init1
+ .long sys_preadv
+ .long sys_writev
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 557cb91..a083609 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -387,3 +387,5 @@
.long sys_dup3
.long sys_pipe2
.long sys_inotify_init1 /* 360 */
+ .long sys_preadv
+ .long sys_pwritev
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index edcd5fb..e098ec1 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -10,11 +10,22 @@
* for more details.
*/
#include <linux/mm.h>
+#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
#include <asm/cacheflush.h>
#include <asm/addrspace.h>
-#include <asm/io.h>
+
+#define PREALLOC_DMA_DEBUG_ENTRIES 4096
+
+static int __init dma_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+ return 0;
+}
+fs_initcall(dma_init);
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
@@ -45,6 +56,9 @@
split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
*dma_handle = virt_to_phys(ret);
+
+ debug_dma_alloc_coherent(dev, size, *dma_handle, ret_nocache);
+
return ret_nocache;
}
EXPORT_SYMBOL(dma_alloc_coherent);
@@ -56,12 +70,15 @@
unsigned long pfn = dma_handle >> PAGE_SHIFT;
int k;
- if (!dma_release_from_coherent(dev, order, vaddr)) {
- WARN_ON(irqs_disabled()); /* for portability */
- for (k = 0; k < (1 << order); k++)
- __free_pages(pfn_to_page(pfn + k), 0);
- iounmap(vaddr);
- }
+ WARN_ON(irqs_disabled()); /* for portability */
+
+ if (dma_release_from_coherent(dev, order, vaddr))
+ return;
+
+ debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+ for (k = 0; k < (1 << order); k++)
+ __free_pages(pfn_to_page(pfn + k), 0);
+ iounmap(vaddr);
}
EXPORT_SYMBOL(dma_free_coherent);
diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
index dff3f02..ff9ead6 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -117,7 +117,7 @@
if (!strcmp(parent->name, "dma")) {
p = parport_pc_probe_port(base, base + 0x400,
op->irqs[0], PARPORT_DMA_NOFIFO,
- op->dev.parent->parent);
+ op->dev.parent->parent, 0);
if (!p)
return -ENOMEM;
dev_set_drvdata(&op->dev, p);
@@ -168,7 +168,8 @@
p = parport_pc_probe_port(base, base + 0x400,
op->irqs[0],
slot,
- op->dev.parent);
+ op->dev.parent,
+ 0);
err = -ENOMEM;
if (!p)
goto out_disable_irq;
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index e5383e3..7373932 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -193,8 +193,10 @@
*/
extern void early_ioremap_init(void);
extern void early_ioremap_reset(void);
-extern void __iomem *early_ioremap(unsigned long offset, unsigned long size);
-extern void __iomem *early_memremap(unsigned long offset, unsigned long size);
+extern void __iomem *early_ioremap(resource_size_t phys_addr,
+ unsigned long size);
+extern void __iomem *early_memremap(resource_size_t phys_addr,
+ unsigned long size);
extern void early_iounmap(void __iomem *addr, unsigned long size);
#define IO_SPACE_LIMIT 0xffff
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 34c5237..fcf4d92 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -352,6 +352,11 @@
u32 entry_eip;
};
+struct ymmh_struct {
+ /* 16 * 16 bytes for each YMMH-reg = 256 bytes */
+ u32 ymmh_space[64];
+};
+
struct xsave_hdr_struct {
u64 xstate_bv;
u64 reserved1[2];
@@ -361,6 +366,7 @@
struct xsave_struct {
struct i387_fxsave_struct i387;
struct xsave_hdr_struct xsave_hdr;
+ struct ymmh_struct ymmh;
/* new processor state extensions will go here */
} __attribute__ ((packed, aligned (64)));
diff --git a/arch/x86/include/asm/required-features.h b/arch/x86/include/asm/required-features.h
index d5cd6c5..a4737dd 100644
--- a/arch/x86/include/asm/required-features.h
+++ b/arch/x86/include/asm/required-features.h
@@ -50,7 +50,7 @@
#ifdef CONFIG_X86_64
#define NEED_PSE 0
#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
-#define NEED_PGE (1<<(X86_FEATURE_PGE & 31))
+#define NEED_PGE 0
#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
#define NEED_XMM (1<<(X86_FEATURE_XMM & 31))
#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31))
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index ec66649..72e5a44 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -269,6 +269,11 @@
__u64 reserved2[5];
};
+struct _ymmh_state {
+ /* 16 * 16 bytes for each YMMH-reg */
+ __u32 ymmh_space[64];
+};
+
/*
* Extended state pointed by the fpstate pointer in the sigcontext.
* In addition to the fpstate, information encoded in the xstate_hdr
@@ -278,6 +283,7 @@
struct _xstate {
struct _fpstate fpstate;
struct _xsave_hdr xstate_hdr;
+ struct _ymmh_state ymmh;
/* new processor state extensions go here */
};
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 1a918dd..018a0a4 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -124,7 +124,8 @@
/* VIRT <-> MACHINE conversion */
#define virt_to_machine(v) (phys_to_machine(XPADDR(__pa(v))))
-#define virt_to_mfn(v) (pfn_to_mfn(PFN_DOWN(__pa(v))))
+#define virt_to_pfn(v) (PFN_DOWN(__pa(v)))
+#define virt_to_mfn(v) (pfn_to_mfn(virt_to_pfn(v)))
#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT))
static inline unsigned long pte_mfn(pte_t pte)
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 08e9a1a..727acc1 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -7,6 +7,7 @@
#define XSTATE_FP 0x1
#define XSTATE_SSE 0x2
+#define XSTATE_YMM 0x4
#define XSTATE_FPSSE (XSTATE_FP | XSTATE_SSE)
@@ -15,7 +16,7 @@
/*
* These are the features that the OS can handle currently.
*/
-#define XCNTXT_MASK (XSTATE_FP | XSTATE_SSE)
+#define XCNTXT_MASK (XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
#ifdef CONFIG_X86_64
#define REX_PREFIX "0x48, "
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 767fe7e..a2789e4 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2524,7 +2524,6 @@
static inline void irq_complete_move(struct irq_desc **descp) {}
#endif
-#ifdef CONFIG_X86_X2APIC
static void __eoi_ioapic_irq(unsigned int irq, struct irq_cfg *cfg)
{
int apic, pin;
@@ -2558,6 +2557,7 @@
spin_unlock_irqrestore(&ioapic_lock, flags);
}
+#ifdef CONFIG_X86_X2APIC
static void ack_x2apic_level(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
@@ -2634,6 +2634,9 @@
*/
ack_APIC_irq();
+ if (irq_remapped(irq))
+ eoi_ioapic_irq(desc);
+
/* Now we can move and renable the irq */
if (unlikely(do_unmask_irq)) {
/* Only migrate the irq if the ack has been received.
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 9d3af38..837c2c4 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -153,7 +153,8 @@
u32 val;
};
-static long do_drv_read(void *_cmd)
+/* Called via smp_call_function_single(), on the target CPU */
+static void do_drv_read(void *_cmd)
{
struct drv_cmd *cmd = _cmd;
u32 h;
@@ -170,10 +171,10 @@
default:
break;
}
- return 0;
}
-static long do_drv_write(void *_cmd)
+/* Called via smp_call_function_many(), on the target CPUs */
+static void do_drv_write(void *_cmd)
{
struct drv_cmd *cmd = _cmd;
u32 lo, hi;
@@ -192,23 +193,18 @@
default:
break;
}
- return 0;
}
static void drv_read(struct drv_cmd *cmd)
{
cmd->val = 0;
- work_on_cpu(cpumask_any(cmd->mask), do_drv_read, cmd);
+ smp_call_function_single(cpumask_any(cmd->mask), do_drv_read, cmd, 1);
}
static void drv_write(struct drv_cmd *cmd)
{
- unsigned int i;
-
- for_each_cpu(i, cmd->mask) {
- work_on_cpu(i, do_drv_write, cmd);
- }
+ smp_call_function_many(cmd->mask, do_drv_write, cmd, 1);
}
static u32 get_cur_val(const struct cpumask *mask)
@@ -252,15 +248,13 @@
} aperf, mperf;
};
-
-static long read_measured_perf_ctrs(void *_cur)
+/* Called via smp_call_function_single(), on the target CPU */
+static void read_measured_perf_ctrs(void *_cur)
{
struct perf_pair *cur = _cur;
rdmsr(MSR_IA32_APERF, cur->aperf.split.lo, cur->aperf.split.hi);
rdmsr(MSR_IA32_MPERF, cur->mperf.split.lo, cur->mperf.split.hi);
-
- return 0;
}
/*
@@ -283,7 +277,7 @@
unsigned int perf_percent;
unsigned int retval;
- if (!work_on_cpu(cpu, read_measured_perf_ctrs, &readin))
+ if (smp_call_function_single(cpu, read_measured_perf_ctrs, &readin, 1))
return 0;
cur.aperf.whole = readin.aperf.whole -
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index dce99dc..70fd7e4 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -679,7 +679,7 @@
__get_smp_config(0);
}
-static void smp_reserve_bootmem(struct mpf_intel *mpf)
+static void __init smp_reserve_bootmem(struct mpf_intel *mpf)
{
unsigned long size = get_mpc_size(mpf->physptr);
#ifdef CONFIG_X86_32
@@ -838,7 +838,7 @@
static struct mpc_intsrc __initdata *m_spare[SPARE_SLOT_NUM];
-static void check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
+static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
{
int i;
@@ -866,7 +866,8 @@
}
}
#else /* CONFIG_X86_IO_APIC */
-static inline void check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
+static
+inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {}
#endif /* CONFIG_X86_IO_APIC */
static int check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length,
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 2b54fe0..0a5b04a 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -324,7 +324,7 @@
}
/*
- * for now OS knows only about FP/SSE
+ * Support only the state known to OS.
*/
pcntxt_mask = pcntxt_mask & XCNTXT_MASK;
xsave_init();
diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index be54176..6340cef 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -219,6 +219,22 @@
return 1;
}
+/**
+ * get_user_pages_fast() - pin user pages in memory
+ * @start: starting user address
+ * @nr_pages: number of pages from start to pin
+ * @write: whether pages will be written to
+ * @pages: array that receives pointers to the pages pinned.
+ * Should be at least nr_pages long.
+ *
+ * Attempt to pin user pages in memory without taking mm->mmap_sem.
+ * If not successful, it will fall back to taking the lock and
+ * calling get_user_pages().
+ *
+ * Returns number of pages pinned. This may be fewer than the number
+ * requested. If nr_pages is 0 or negative, returns 0. If no pages
+ * were pinned, returns -errno.
+ */
int get_user_pages_fast(unsigned long start, int nr_pages, int write,
struct page **pages)
{
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 0dfa09d..09daebf 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -547,7 +547,7 @@
}
static void __init __early_set_fixmap(enum fixed_addresses idx,
- unsigned long phys, pgprot_t flags)
+ phys_addr_t phys, pgprot_t flags)
{
unsigned long addr = __fix_to_virt(idx);
pte_t *pte;
@@ -566,7 +566,7 @@
}
static inline void __init early_set_fixmap(enum fixed_addresses idx,
- unsigned long phys, pgprot_t prot)
+ phys_addr_t phys, pgprot_t prot)
{
if (after_paging_init)
__set_fixmap(idx, phys, prot);
@@ -607,9 +607,10 @@
late_initcall(check_early_ioremap_leak);
static void __init __iomem *
-__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
+__early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot)
{
- unsigned long offset, last_addr;
+ unsigned long offset;
+ resource_size_t last_addr;
unsigned int nrpages;
enum fixed_addresses idx0, idx;
int i, slot;
@@ -625,15 +626,15 @@
}
if (slot < 0) {
- printk(KERN_INFO "early_iomap(%08lx, %08lx) not found slot\n",
- phys_addr, size);
+ printk(KERN_INFO "early_iomap(%08llx, %08lx) not found slot\n",
+ (u64)phys_addr, size);
WARN_ON(1);
return NULL;
}
if (early_ioremap_debug) {
- printk(KERN_INFO "early_ioremap(%08lx, %08lx) [%d] => ",
- phys_addr, size, slot);
+ printk(KERN_INFO "early_ioremap(%08llx, %08lx) [%d] => ",
+ (u64)phys_addr, size, slot);
dump_stack();
}
@@ -680,13 +681,15 @@
}
/* Remap an IO device */
-void __init __iomem *early_ioremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *
+early_ioremap(resource_size_t phys_addr, unsigned long size)
{
return __early_ioremap(phys_addr, size, PAGE_KERNEL_IO);
}
/* Remap memory */
-void __init __iomem *early_memremap(unsigned long phys_addr, unsigned long size)
+void __init __iomem *
+early_memremap(resource_size_t phys_addr, unsigned long size)
{
return __early_ioremap(phys_addr, size, PAGE_KERNEL);
}
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 640339e..c009a24 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -31,7 +31,7 @@
#ifdef CONFIG_X86_PAT
int __read_mostly pat_enabled = 1;
-void __cpuinit pat_disable(const char *reason)
+static inline void pat_disable(const char *reason)
{
pat_enabled = 0;
printk(KERN_INFO "%s\n", reason);
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 82cd39a..f09e8c3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -42,6 +42,7 @@
#include <asm/xen/hypervisor.h>
#include <asm/fixmap.h>
#include <asm/processor.h>
+#include <asm/proto.h>
#include <asm/msr-index.h>
#include <asm/setup.h>
#include <asm/desc.h>
@@ -168,21 +169,23 @@
xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
}
+static __read_mostly unsigned int cpuid_leaf1_edx_mask = ~0;
+static __read_mostly unsigned int cpuid_leaf1_ecx_mask = ~0;
+
static void xen_cpuid(unsigned int *ax, unsigned int *bx,
unsigned int *cx, unsigned int *dx)
{
+ unsigned maskecx = ~0;
unsigned maskedx = ~0;
/*
* Mask out inconvenient features, to try and disable as many
* unsupported kernel subsystems as possible.
*/
- if (*ax == 1)
- maskedx = ~((1 << X86_FEATURE_APIC) | /* disable APIC */
- (1 << X86_FEATURE_ACPI) | /* disable ACPI */
- (1 << X86_FEATURE_MCE) | /* disable MCE */
- (1 << X86_FEATURE_MCA) | /* disable MCA */
- (1 << X86_FEATURE_ACC)); /* thermal monitoring */
+ if (*ax == 1) {
+ maskecx = cpuid_leaf1_ecx_mask;
+ maskedx = cpuid_leaf1_edx_mask;
+ }
asm(XEN_EMULATE_PREFIX "cpuid"
: "=a" (*ax),
@@ -190,9 +193,43 @@
"=c" (*cx),
"=d" (*dx)
: "0" (*ax), "2" (*cx));
+
+ *cx &= maskecx;
*dx &= maskedx;
}
+static __init void xen_init_cpuid_mask(void)
+{
+ unsigned int ax, bx, cx, dx;
+
+ cpuid_leaf1_edx_mask =
+ ~((1 << X86_FEATURE_MCE) | /* disable MCE */
+ (1 << X86_FEATURE_MCA) | /* disable MCA */
+ (1 << X86_FEATURE_ACC)); /* thermal monitoring */
+
+ if (!xen_initial_domain())
+ cpuid_leaf1_edx_mask &=
+ ~((1 << X86_FEATURE_APIC) | /* disable local APIC */
+ (1 << X86_FEATURE_ACPI)); /* disable ACPI */
+
+ ax = 1;
+ xen_cpuid(&ax, &bx, &cx, &dx);
+
+ /* cpuid claims we support xsave; try enabling it to see what happens */
+ if (cx & (1 << (X86_FEATURE_XSAVE % 32))) {
+ unsigned long cr4;
+
+ set_in_cr4(X86_CR4_OSXSAVE);
+
+ cr4 = read_cr4();
+
+ if ((cr4 & X86_CR4_OSXSAVE) == 0)
+ cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_XSAVE % 32));
+
+ clear_in_cr4(X86_CR4_OSXSAVE);
+ }
+}
+
static void xen_set_debugreg(int reg, unsigned long val)
{
HYPERVISOR_set_debugreg(reg, val);
@@ -284,12 +321,11 @@
static void xen_load_gdt(const struct desc_ptr *dtr)
{
- unsigned long *frames;
unsigned long va = dtr->address;
unsigned int size = dtr->size + 1;
unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+ unsigned long frames[pages];
int f;
- struct multicall_space mcs;
/* A GDT can be up to 64k in size, which corresponds to 8192
8-byte entries, or 16 4k pages.. */
@@ -297,19 +333,26 @@
BUG_ON(size > 65536);
BUG_ON(va & ~PAGE_MASK);
- mcs = xen_mc_entry(sizeof(*frames) * pages);
- frames = mcs.args;
-
for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
- frames[f] = arbitrary_virt_to_mfn((void *)va);
+ int level;
+ pte_t *ptep = lookup_address(va, &level);
+ unsigned long pfn, mfn;
+ void *virt;
+
+ BUG_ON(ptep == NULL);
+
+ pfn = pte_pfn(*ptep);
+ mfn = pfn_to_mfn(pfn);
+ virt = __va(PFN_PHYS(pfn));
+
+ frames[f] = mfn;
make_lowmem_page_readonly((void *)va);
- make_lowmem_page_readonly(mfn_to_virt(frames[f]));
+ make_lowmem_page_readonly(virt);
}
- MULTI_set_gdt(mcs.mc, frames, size / sizeof(struct desc_struct));
-
- xen_mc_issue(PARAVIRT_LAZY_CPU);
+ if (HYPERVISOR_set_gdt(frames, size / sizeof(struct desc_struct)))
+ BUG();
}
static void load_TLS_descriptor(struct thread_struct *t,
@@ -385,7 +428,7 @@
static int cvt_gate_to_trap(int vector, const gate_desc *val,
struct trap_info *info)
{
- if (val->type != 0xf && val->type != 0xe)
+ if (val->type != GATE_TRAP && val->type != GATE_INTERRUPT)
return 0;
info->vector = vector;
@@ -393,8 +436,8 @@
info->cs = gate_segment(*val);
info->flags = val->dpl;
/* interrupt gates clear IF */
- if (val->type == 0xe)
- info->flags |= 4;
+ if (val->type == GATE_INTERRUPT)
+ info->flags |= 1 << 2;
return 1;
}
@@ -872,7 +915,6 @@
.emergency_restart = xen_emergency_restart,
};
-
/* First C function to be called on Xen boot */
asmlinkage void __init xen_start_kernel(void)
{
@@ -897,6 +939,8 @@
xen_init_irq_ops();
+ xen_init_cpuid_mask();
+
#ifdef CONFIG_X86_LOCAL_APIC
/*
* set up the basic apic ops.
@@ -938,6 +982,11 @@
if (!xen_initial_domain())
__supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
+#ifdef CONFIG_X86_64
+ /* Work out if we support NX */
+ check_efer();
+#endif
+
/* Don't do the full vcpu_info placement stuff until we have a
possible map and a non-dummy shared_info. */
per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 2a81838..9842b12 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -184,7 +184,7 @@
}
/* Build the parallel p2m_top_mfn structures */
-void xen_setup_mfn_list_list(void)
+static void __init xen_build_mfn_list_list(void)
{
unsigned pfn, idx;
@@ -198,7 +198,10 @@
unsigned topidx = idx * P2M_ENTRIES_PER_PAGE;
p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]);
}
+}
+void xen_setup_mfn_list_list(void)
+{
BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
HYPERVISOR_shared_info->arch.pfn_to_mfn_frame_list_list =
@@ -218,6 +221,8 @@
p2m_top[topidx] = &mfn_list[pfn];
}
+
+ xen_build_mfn_list_list();
}
unsigned long get_phys_to_machine(unsigned long pfn)
@@ -233,47 +238,74 @@
}
EXPORT_SYMBOL_GPL(get_phys_to_machine);
-static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
+/* install a new p2m_top page */
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p)
{
- unsigned long *p;
+ unsigned topidx = p2m_top_index(pfn);
+ unsigned long **pfnp, *mfnp;
unsigned i;
- p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
- BUG_ON(p == NULL);
+ pfnp = &p2m_top[topidx];
+ mfnp = &p2m_top_mfn[topidx];
for (i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
p[i] = INVALID_P2M_ENTRY;
- if (cmpxchg(pp, p2m_missing, p) != p2m_missing)
- free_page((unsigned long)p);
- else
+ if (cmpxchg(pfnp, p2m_missing, p) == p2m_missing) {
*mfnp = virt_to_mfn(p);
+ return true;
+ }
+
+ return false;
+}
+
+static void alloc_p2m(unsigned long pfn)
+{
+ unsigned long *p;
+
+ p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
+ BUG_ON(p == NULL);
+
+ if (!install_p2mtop_page(pfn, p))
+ free_page((unsigned long)p);
+}
+
+/* Try to install p2m mapping; fail if intermediate bits missing */
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+ unsigned topidx, idx;
+
+ if (unlikely(pfn >= MAX_DOMAIN_PAGES)) {
+ BUG_ON(mfn != INVALID_P2M_ENTRY);
+ return true;
+ }
+
+ topidx = p2m_top_index(pfn);
+ if (p2m_top[topidx] == p2m_missing) {
+ if (mfn == INVALID_P2M_ENTRY)
+ return true;
+ return false;
+ }
+
+ idx = p2m_index(pfn);
+ p2m_top[topidx][idx] = mfn;
+
+ return true;
}
void set_phys_to_machine(unsigned long pfn, unsigned long mfn)
{
- unsigned topidx, idx;
-
if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
return;
}
- if (unlikely(pfn >= MAX_DOMAIN_PAGES)) {
- BUG_ON(mfn != INVALID_P2M_ENTRY);
- return;
- }
+ if (unlikely(!__set_phys_to_machine(pfn, mfn))) {
+ alloc_p2m(pfn);
- topidx = p2m_top_index(pfn);
- if (p2m_top[topidx] == p2m_missing) {
- /* no need to allocate a page to store an invalid entry */
- if (mfn == INVALID_P2M_ENTRY)
- return;
- alloc_p2m(&p2m_top[topidx], &p2m_top_mfn[topidx]);
+ if (!__set_phys_to_machine(pfn, mfn))
+ BUG();
}
-
- idx = p2m_index(pfn);
- p2m_top[topidx][idx] = mfn;
}
unsigned long arbitrary_virt_to_mfn(void *vaddr)
@@ -987,7 +1019,7 @@
return 0;
}
-void __init xen_mark_init_mm_pinned(void)
+static void __init xen_mark_init_mm_pinned(void)
{
xen_pgd_walk(&init_mm, xen_mark_pinned, FIXADDR_TOP);
}
@@ -1270,8 +1302,8 @@
} *args;
struct multicall_space mcs;
- BUG_ON(cpumask_empty(cpus));
- BUG_ON(!mm);
+ if (cpumask_empty(cpus))
+ return; /* nothing to do */
mcs = xen_mc_entry(sizeof(*args));
args = mcs.args;
@@ -1438,6 +1470,15 @@
}
#endif
+static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+{
+ struct mmuext_op op;
+ op.cmd = cmd;
+ op.arg1.mfn = pfn_to_mfn(pfn);
+ if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
+ BUG();
+}
+
/* Early in boot, while setting up the initial pagetable, assume
everything is pinned. */
static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
@@ -1446,22 +1487,29 @@
BUG_ON(mem_map); /* should only be used early */
#endif
make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
+ pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
+}
+
+/* Used for pmd and pud */
+static __init void xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn)
+{
+#ifdef CONFIG_FLATMEM
+ BUG_ON(mem_map); /* should only be used early */
+#endif
+ make_lowmem_page_readonly(__va(PFN_PHYS(pfn)));
}
/* Early release_pte assumes that all pts are pinned, since there's
only init_mm and anything attached to that is pinned. */
-static void xen_release_pte_init(unsigned long pfn)
+static __init void xen_release_pte_init(unsigned long pfn)
{
+ pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
-static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
+static __init void xen_release_pmd_init(unsigned long pfn)
{
- struct mmuext_op op;
- op.cmd = cmd;
- op.arg1.mfn = pfn_to_mfn(pfn);
- if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
- BUG();
+ make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
/* This needs to make sure the new pte page is pinned iff its being
@@ -1773,6 +1821,9 @@
#ifdef CONFIG_X86_LOCAL_APIC
case FIX_APIC_BASE: /* maps dummy local APIC */
#endif
+ case FIX_TEXT_POKE0:
+ case FIX_TEXT_POKE1:
+ /* All local page mappings */
pte = pfn_pte(phys, prot);
break;
@@ -1819,7 +1870,6 @@
xen_mark_init_mm_pinned();
}
-
const struct pv_mmu_ops xen_mmu_ops __initdata = {
.pagetable_setup_start = xen_pagetable_setup_start,
.pagetable_setup_done = xen_pagetable_setup_done,
@@ -1843,9 +1893,9 @@
.alloc_pte = xen_alloc_pte_init,
.release_pte = xen_release_pte_init,
- .alloc_pmd = xen_alloc_pte_init,
+ .alloc_pmd = xen_alloc_pmd_init,
.alloc_pmd_clone = paravirt_nop,
- .release_pmd = xen_release_pte_init,
+ .release_pmd = xen_release_pmd_init,
#ifdef CONFIG_HIGHPTE
.kmap_atomic_pte = xen_kmap_atomic_pte,
@@ -1883,8 +1933,8 @@
.make_pud = PV_CALLEE_SAVE(xen_make_pud),
.set_pgd = xen_set_pgd_hyper,
- .alloc_pud = xen_alloc_pte_init,
- .release_pud = xen_release_pte_init,
+ .alloc_pud = xen_alloc_pmd_init,
+ .release_pud = xen_release_pmd_init,
#endif /* PAGETABLE_LEVELS == 4 */
.activate_mm = xen_activate_mm,
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index 24d1b44..da73026 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -11,6 +11,9 @@
};
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
+bool install_p2mtop_page(unsigned long pfn, unsigned long *p);
+
void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 585a6e3..429834e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -317,7 +317,7 @@
BUG_ON(rc);
while(per_cpu(cpu_state, cpu) != CPU_ONLINE) {
- HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+ HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
barrier();
}
@@ -422,7 +422,7 @@
/* Make sure other vcpus get a chance to run if they need to. */
for_each_cpu(cpu, mask) {
if (xen_vcpu_stolen(cpu)) {
- HYPERVISOR_sched_op(SCHEDOP_yield, 0);
+ HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
break;
}
}
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 2f5ef26..2013946 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -57,8 +57,6 @@
bool xen_vcpu_stolen(int vcpu);
-void xen_mark_init_mm_pinned(void);
-
void xen_setup_vcpu_info_placement(void);
#ifdef CONFIG_SMP
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 57be6be..08186ec 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -114,6 +114,7 @@
board_ahci_sb700 = 5, /* for SB700 and SB800 */
board_ahci_mcp65 = 6,
board_ahci_nopmp = 7,
+ board_ahci_yesncq = 8,
/* global controller registers */
HOST_CAP = 0x00, /* host capabilities */
@@ -469,6 +470,14 @@
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
+ /* board_ahci_yesncq */
+ {
+ AHCI_HFLAGS (AHCI_HFLAG_YES_NCQ),
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = ATA_PIO4,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_ops,
+ },
};
static const struct pci_device_id ahci_pci_tbl[] = {
@@ -535,30 +544,30 @@
{ PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */
{ PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */
- { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci }, /* MCP67 */
- { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci }, /* MCP73 */
- { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_yesncq }, /* MCP67 */
+ { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_yesncq }, /* MCP73 */
+ { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_yesncq }, /* MCP73 */
{ PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci }, /* MCP77 */
{ PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci }, /* MCP77 */
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e7ea77c..065507c 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6110,13 +6110,11 @@
ata_port_printk(ap, KERN_INFO, "DUMMY\n");
}
- /* perform each probe synchronously */
- DPRINTK("probe begin\n");
+ /* perform each probe asynchronously */
for (i = 0; i < host->n_ports; i++) {
struct ata_port *ap = host->ports[i];
async_schedule(async_port_probe, ap);
}
- DPRINTK("probe end\n");
return 0;
}
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 98e8c50..bdd43c7 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -566,7 +566,7 @@
static int printed_version;
unsigned int i;
int rc;
- struct ata_host *host;
+ struct ata_host *host = NULL;
int board_id = (int) ent->driver_data;
const unsigned *bar_sizes;
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index be20430..9359613a 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -1059,7 +1059,7 @@
goto out;
}
- err = pci_set_dma_mask(dev, DMA_32BIT_MASK);
+ err = pci_set_dma_mask(dev, DMA_BIT_MASK(32));
if (err) {
dev_warn(&dev->dev, "Failed to set 32-bit DMA mask\n");
goto out;
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0ef6f08..4d4d5e0 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3505,7 +3505,7 @@
/* The Inbound Post Queue only accepts 32-bit physical addresses for the
CCISS commands, so they must be allocated from the lower 4GiB of
memory. */
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
iounmap(vaddr);
return -ENOMEM;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 9d9490e..3686912 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -2131,6 +2131,8 @@
{ PCI_DEVICE_ID_INTEL_82845G_HB, PCI_DEVICE_ID_INTEL_82845G_IG, 0, "830M",
&intel_845_driver, &intel_830_driver },
{ PCI_DEVICE_ID_INTEL_82850_HB, 0, 0, "i850", &intel_850_driver, NULL },
+ { PCI_DEVICE_ID_INTEL_82854_HB, PCI_DEVICE_ID_INTEL_82854_IG, 0, "854",
+ &intel_845_driver, &intel_830_driver },
{ PCI_DEVICE_ID_INTEL_82855PM_HB, 0, 0, "855PM", &intel_845_driver, NULL },
{ PCI_DEVICE_ID_INTEL_82855GM_HB, PCI_DEVICE_ID_INTEL_82855GM_IG, 0, "855GM",
&intel_845_driver, &intel_830_driver },
@@ -2355,6 +2357,7 @@
ID(PCI_DEVICE_ID_INTEL_82845_HB),
ID(PCI_DEVICE_ID_INTEL_82845G_HB),
ID(PCI_DEVICE_ID_INTEL_82850_HB),
+ ID(PCI_DEVICE_ID_INTEL_82854_HB),
ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
ID(PCI_DEVICE_ID_INTEL_82860_HB),
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 6de020d..b0a6a3e 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -35,7 +35,6 @@
#include <linux/vt_kern.h>
#include <linux/workqueue.h>
#include <linux/kexec.h>
-#include <linux/interrupt.h>
#include <linux/hrtimer.h>
#include <linux/oom.h>
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index 28f2c3f..6ad95c8 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -767,11 +767,19 @@
pci_write_config_word(pdev, offset, value);
}
-/* write all or some bits in a dword-register*/
+/*
+ * pci_write_bits32
+ *
+ * edac local routine to do pci_write_config_dword, but adds
+ * a mask parameter. If mask is all ones, ignore the mask.
+ * Otherwise utilize the mask to isolate specified bits
+ *
+ * write all or some bits in a dword-register
+ */
static inline void pci_write_bits32(struct pci_dev *pdev, int offset,
u32 value, u32 mask)
{
- if (mask != 0xffff) {
+ if (mask != 0xffffffff) {
u32 buf;
pci_read_config_dword(pdev, offset, &buf);
diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index ca9113e..a7d2c71 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -389,7 +389,7 @@
*/
static void edac_device_workq_function(struct work_struct *work_req)
{
- struct delayed_work *d_work = (struct delayed_work *)work_req;
+ struct delayed_work *d_work = to_delayed_work(work_req);
struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work);
mutex_lock(&device_ctls_mutex);
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 25d6694..335b7eb 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -260,7 +260,7 @@
*/
static void edac_mc_workq_function(struct work_struct *work_req)
{
- struct delayed_work *d_work = (struct delayed_work *)work_req;
+ struct delayed_work *d_work = to_delayed_work(work_req);
struct mem_ctl_info *mci = to_edac_mem_ctl_work(d_work);
mutex_lock(&mem_ctls_mutex);
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index 5b150ae..30b585b1 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -233,7 +233,7 @@
*/
static void edac_pci_workq_function(struct work_struct *work_req)
{
- struct delayed_work *d_work = (struct delayed_work *)work_req;
+ struct delayed_work *d_work = to_delayed_work(work_req);
struct edac_pci_ctl_info *pci = to_edac_pci_ctl_work(d_work);
int msec;
unsigned long delay;
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 0e8a918..d73f5f4 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -692,6 +692,16 @@
These devices are hard to detect and rarely found on mainstream
hardware. If unsure, say N.
+config SENSORS_SHT15
+ tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
+ depends on GENERIC_GPIO
+ help
+ If you say yes here you get support for the Sensiron SHT10, SHT11,
+ SHT15, SHT71, SHT75 humidity and temperature sensors.
+
+ This driver can also be built as a module. If so, the module
+ will be called sht15.
+
config SENSORS_SIS5595
tristate "Silicon Integrated Systems Corp. SiS5595"
depends on PCI
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 1d37578..0ae2698 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -76,6 +76,7 @@
obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
obj-$(CONFIG_SENSORS_PC87427) += pc87427.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
+obj-$(CONFIG_SENSORS_SHT15) += sht15.o
obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o
obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index 55d3dc5..abca7e9 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -34,7 +34,6 @@
#include <linux/wait.h>
#include <linux/poll.h>
#include <linux/freezer.h>
-#include <linux/version.h>
#include <linux/uaccess.h>
#include <linux/leds.h>
#include <acpi/acpi_drivers.h>
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
new file mode 100644
index 0000000..6cbdc2f
--- /dev/null
+++ b/drivers/hwmon/sht15.c
@@ -0,0 +1,692 @@
+/*
+ * sht15.c - support for the SHT15 Temperature and Humidity Sensor
+ *
+ * Copyright (c) 2009 Jonathan Cameron
+ *
+ * Copyright (c) 2007 Wouter Horre
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Currently ignoring checksum on readings.
+ * Default resolution only (14bit temp, 12bit humidity)
+ * Ignoring battery status.
+ * Heater not enabled.
+ * Timings are all conservative.
+ *
+ * Data sheet available (1/2009) at
+ * http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
+ *
+ * Regulator supply name = vcc
+ */
+
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/err.h>
+#include <linux/sht15.h>
+#include <linux/regulator/consumer.h>
+#include <asm/atomic.h>
+
+#define SHT15_MEASURE_TEMP 3
+#define SHT15_MEASURE_RH 5
+
+#define SHT15_READING_NOTHING 0
+#define SHT15_READING_TEMP 1
+#define SHT15_READING_HUMID 2
+
+/* Min timings in nsecs */
+#define SHT15_TSCKL 100 /* clock low */
+#define SHT15_TSCKH 100 /* clock high */
+#define SHT15_TSU 150 /* data setup time */
+
+/**
+ * struct sht15_temppair - elements of voltage dependant temp calc
+ * @vdd: supply voltage in microvolts
+ * @d1: see data sheet
+ */
+struct sht15_temppair {
+ int vdd; /* microvolts */
+ int d1;
+};
+
+/* Table 9 from data sheet - relates temperature calculation
+ * to supply voltage.
+ */
+static const struct sht15_temppair temppoints[] = {
+ { 2500000, -39400 },
+ { 3000000, -39600 },
+ { 3500000, -39700 },
+ { 4000000, -39800 },
+ { 5000000, -40100 },
+};
+
+/**
+ * struct sht15_data - device instance specific data
+ * @pdata: platform data (gpio's etc)
+ * @read_work: bh of interrupt handler
+ * @wait_queue: wait queue for getting values from device
+ * @val_temp: last temperature value read from device
+ * @val_humid: last humidity value read from device
+ * @flag: status flag used to identify what the last request was
+ * @valid: are the current stored values valid (start condition)
+ * @last_updat: time of last update
+ * @read_lock: mutex to ensure only one read in progress
+ * at a time.
+ * @dev: associate device structure
+ * @hwmon_dev: device associated with hwmon subsystem
+ * @reg: associated regulator (if specified)
+ * @nb: notifier block to handle notifications of voltage changes
+ * @supply_uV: local copy of supply voltage used to allow
+ * use of regulator consumer if available
+ * @supply_uV_valid: indicates that an updated value has not yet
+ * been obtained from the regulator and so any calculations
+ * based upon it will be invalid.
+ * @update_supply_work: work struct that is used to update the supply_uV
+ * @interrupt_handled: flag used to indicate a hander has been scheduled
+ */
+struct sht15_data {
+ struct sht15_platform_data *pdata;
+ struct work_struct read_work;
+ wait_queue_head_t wait_queue;
+ uint16_t val_temp;
+ uint16_t val_humid;
+ u8 flag;
+ u8 valid;
+ unsigned long last_updat;
+ struct mutex read_lock;
+ struct device *dev;
+ struct device *hwmon_dev;
+ struct regulator *reg;
+ struct notifier_block nb;
+ int supply_uV;
+ int supply_uV_valid;
+ struct work_struct update_supply_work;
+ atomic_t interrupt_handled;
+};
+
+/**
+ * sht15_connection_reset() - reset the comms interface
+ * @data: sht15 specific data
+ *
+ * This implements section 3.4 of the data sheet
+ */
+static void sht15_connection_reset(struct sht15_data *data)
+{
+ int i;
+ gpio_direction_output(data->pdata->gpio_data, 1);
+ ndelay(SHT15_TSCKL);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ for (i = 0; i < 9; ++i) {
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ }
+}
+/**
+ * sht15_send_bit() - send an individual bit to the device
+ * @data: device state data
+ * @val: value of bit to be sent
+ **/
+static inline void sht15_send_bit(struct sht15_data *data, int val)
+{
+
+ gpio_set_value(data->pdata->gpio_data, val);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL); /* clock low time */
+}
+
+/**
+ * sht15_transmission_start() - specific sequence for new transmission
+ *
+ * @data: device state data
+ * Timings for this are not documented on the data sheet, so very
+ * conservative ones used in implementation. This implements
+ * figure 12 on the data sheet.
+ **/
+static void sht15_transmission_start(struct sht15_data *data)
+{
+ /* ensure data is high and output */
+ gpio_direction_output(data->pdata->gpio_data, 1);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ gpio_set_value(data->pdata->gpio_data, 0);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ gpio_set_value(data->pdata->gpio_data, 1);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+}
+/**
+ * sht15_send_byte() - send a single byte to the device
+ * @data: device state
+ * @byte: value to be sent
+ **/
+static void sht15_send_byte(struct sht15_data *data, u8 byte)
+{
+ int i;
+ for (i = 0; i < 8; i++) {
+ sht15_send_bit(data, !!(byte & 0x80));
+ byte <<= 1;
+ }
+}
+/**
+ * sht15_wait_for_response() - checks for ack from device
+ * @data: device state
+ **/
+static int sht15_wait_for_response(struct sht15_data *data)
+{
+ gpio_direction_input(data->pdata->gpio_data);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ if (gpio_get_value(data->pdata->gpio_data)) {
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ dev_err(data->dev, "Command not acknowledged\n");
+ sht15_connection_reset(data);
+ return -EIO;
+ }
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ return 0;
+}
+
+/**
+ * sht15_send_cmd() - Sends a command to the device.
+ * @data: device state
+ * @cmd: command byte to be sent
+ *
+ * On entry, sck is output low, data is output pull high
+ * and the interrupt disabled.
+ **/
+static int sht15_send_cmd(struct sht15_data *data, u8 cmd)
+{
+ int ret = 0;
+ sht15_transmission_start(data);
+ sht15_send_byte(data, cmd);
+ ret = sht15_wait_for_response(data);
+ return ret;
+}
+/**
+ * sht15_update_single_val() - get a new value from device
+ * @data: device instance specific data
+ * @command: command sent to request value
+ * @timeout_msecs: timeout after which comms are assumed
+ * to have failed are reset.
+ **/
+static inline int sht15_update_single_val(struct sht15_data *data,
+ int command,
+ int timeout_msecs)
+{
+ int ret;
+ ret = sht15_send_cmd(data, command);
+ if (ret)
+ return ret;
+
+ gpio_direction_input(data->pdata->gpio_data);
+ atomic_set(&data->interrupt_handled, 0);
+
+ enable_irq(gpio_to_irq(data->pdata->gpio_data));
+ if (gpio_get_value(data->pdata->gpio_data) == 0) {
+ disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+ /* Only relevant if the interrupt hasn't occured. */
+ if (!atomic_read(&data->interrupt_handled))
+ schedule_work(&data->read_work);
+ }
+ ret = wait_event_timeout(data->wait_queue,
+ (data->flag == SHT15_READING_NOTHING),
+ msecs_to_jiffies(timeout_msecs));
+ if (ret == 0) {/* timeout occurred */
+ disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));;
+ sht15_connection_reset(data);
+ return -ETIME;
+ }
+ return 0;
+}
+
+/**
+ * sht15_update_vals() - get updated readings from device if too old
+ * @data: device state
+ **/
+static int sht15_update_vals(struct sht15_data *data)
+{
+ int ret = 0;
+ int timeout = HZ;
+
+ mutex_lock(&data->read_lock);
+ if (time_after(jiffies, data->last_updat + timeout)
+ || !data->valid) {
+ data->flag = SHT15_READING_HUMID;
+ ret = sht15_update_single_val(data, SHT15_MEASURE_RH, 160);
+ if (ret)
+ goto error_ret;
+ data->flag = SHT15_READING_TEMP;
+ ret = sht15_update_single_val(data, SHT15_MEASURE_TEMP, 400);
+ if (ret)
+ goto error_ret;
+ data->valid = 1;
+ data->last_updat = jiffies;
+ }
+error_ret:
+ mutex_unlock(&data->read_lock);
+
+ return ret;
+}
+
+/**
+ * sht15_calc_temp() - convert the raw reading to a temperature
+ * @data: device state
+ *
+ * As per section 4.3 of the data sheet.
+ **/
+static inline int sht15_calc_temp(struct sht15_data *data)
+{
+ int d1 = 0;
+ int i;
+
+ for (i = 1; i < ARRAY_SIZE(temppoints) - 1; i++)
+ /* Find pointer to interpolate */
+ if (data->supply_uV > temppoints[i - 1].vdd) {
+ d1 = (data->supply_uV/1000 - temppoints[i - 1].vdd)
+ * (temppoints[i].d1 - temppoints[i - 1].d1)
+ / (temppoints[i].vdd - temppoints[i - 1].vdd)
+ + temppoints[i - 1].d1;
+ break;
+ }
+
+ return data->val_temp*10 + d1;
+}
+
+/**
+ * sht15_calc_humid() - using last temperature convert raw to humid
+ * @data: device state
+ *
+ * This is the temperature compensated version as per section 4.2 of
+ * the data sheet.
+ **/
+static inline int sht15_calc_humid(struct sht15_data *data)
+{
+ int RHlinear; /* milli percent */
+ int temp = sht15_calc_temp(data);
+
+ const int c1 = -4;
+ const int c2 = 40500; /* x 10 ^ -6 */
+ const int c3 = 2800; /* x10 ^ -9 */
+
+ RHlinear = c1*1000
+ + c2 * data->val_humid/1000
+ + (data->val_humid * data->val_humid * c3)/1000000;
+ return (temp - 25000) * (10000 + 800 * data->val_humid)
+ / 1000000 + RHlinear;
+}
+
+static ssize_t sht15_show_temp(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int ret;
+ struct sht15_data *data = dev_get_drvdata(dev);
+
+ /* Technically no need to read humidity as well */
+ ret = sht15_update_vals(data);
+
+ return ret ? ret : sprintf(buf, "%d\n",
+ sht15_calc_temp(data));
+}
+
+static ssize_t sht15_show_humidity(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int ret;
+ struct sht15_data *data = dev_get_drvdata(dev);
+
+ ret = sht15_update_vals(data);
+
+ return ret ? ret : sprintf(buf, "%d\n", sht15_calc_humid(data));
+
+};
+static ssize_t show_name(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ return sprintf(buf, "%s\n", pdev->name);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input,
+ S_IRUGO, sht15_show_temp,
+ NULL, 0);
+static SENSOR_DEVICE_ATTR(humidity1_input,
+ S_IRUGO, sht15_show_humidity,
+ NULL, 0);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static struct attribute *sht15_attrs[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_humidity1_input.dev_attr.attr,
+ &dev_attr_name.attr,
+ NULL,
+};
+
+static const struct attribute_group sht15_attr_group = {
+ .attrs = sht15_attrs,
+};
+
+static irqreturn_t sht15_interrupt_fired(int irq, void *d)
+{
+ struct sht15_data *data = d;
+ /* First disable the interrupt */
+ disable_irq_nosync(irq);
+ atomic_inc(&data->interrupt_handled);
+ /* Then schedule a reading work struct */
+ if (data->flag != SHT15_READING_NOTHING)
+ schedule_work(&data->read_work);
+ return IRQ_HANDLED;
+}
+
+/* Each byte of data is acknowledged by pulling the data line
+ * low for one clock pulse.
+ */
+static void sht15_ack(struct sht15_data *data)
+{
+ gpio_direction_output(data->pdata->gpio_data, 0);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_data, 1);
+
+ gpio_direction_input(data->pdata->gpio_data);
+}
+/**
+ * sht15_end_transmission() - notify device of end of transmission
+ * @data: device state
+ *
+ * This is basically a NAK. (single clock pulse, data high)
+ **/
+static void sht15_end_transmission(struct sht15_data *data)
+{
+ gpio_direction_output(data->pdata->gpio_data, 1);
+ ndelay(SHT15_TSU);
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+}
+
+static void sht15_bh_read_data(struct work_struct *work_s)
+{
+ int i;
+ uint16_t val = 0;
+ struct sht15_data *data
+ = container_of(work_s, struct sht15_data,
+ read_work);
+ /* Firstly, verify the line is low */
+ if (gpio_get_value(data->pdata->gpio_data)) {
+ /* If not, then start the interrupt again - care
+ here as could have gone low in meantime so verify
+ it hasn't!
+ */
+ atomic_set(&data->interrupt_handled, 0);
+ enable_irq(gpio_to_irq(data->pdata->gpio_data));
+ /* If still not occured or another handler has been scheduled */
+ if (gpio_get_value(data->pdata->gpio_data)
+ || atomic_read(&data->interrupt_handled))
+ return;
+ }
+ /* Read the data back from the device */
+ for (i = 0; i < 16; ++i) {
+ val <<= 1;
+ gpio_set_value(data->pdata->gpio_sck, 1);
+ ndelay(SHT15_TSCKH);
+ val |= !!gpio_get_value(data->pdata->gpio_data);
+ gpio_set_value(data->pdata->gpio_sck, 0);
+ ndelay(SHT15_TSCKL);
+ if (i == 7)
+ sht15_ack(data);
+ }
+ /* Tell the device we are done */
+ sht15_end_transmission(data);
+
+ switch (data->flag) {
+ case SHT15_READING_TEMP:
+ data->val_temp = val;
+ break;
+ case SHT15_READING_HUMID:
+ data->val_humid = val;
+ break;
+ }
+
+ data->flag = SHT15_READING_NOTHING;
+ wake_up(&data->wait_queue);
+}
+
+static void sht15_update_voltage(struct work_struct *work_s)
+{
+ struct sht15_data *data
+ = container_of(work_s, struct sht15_data,
+ update_supply_work);
+ data->supply_uV = regulator_get_voltage(data->reg);
+}
+
+/**
+ * sht15_invalidate_voltage() - mark supply voltage invalid when notified by reg
+ * @nb: associated notification structure
+ * @event: voltage regulator state change event code
+ * @ignored: function parameter - ignored here
+ *
+ * Note that as the notification code holds the regulator lock, we have
+ * to schedule an update of the supply voltage rather than getting it directly.
+ **/
+static int sht15_invalidate_voltage(struct notifier_block *nb,
+ unsigned long event,
+ void *ignored)
+{
+ struct sht15_data *data = container_of(nb, struct sht15_data, nb);
+
+ if (event == REGULATOR_EVENT_VOLTAGE_CHANGE)
+ data->supply_uV_valid = false;
+ schedule_work(&data->update_supply_work);
+
+ return NOTIFY_OK;
+}
+
+static int __devinit sht15_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct sht15_data *data = kzalloc(sizeof(*data), GFP_KERNEL);
+
+ if (!data) {
+ ret = -ENOMEM;
+ dev_err(&pdev->dev, "kzalloc failed");
+ goto error_ret;
+ }
+
+ INIT_WORK(&data->read_work, sht15_bh_read_data);
+ INIT_WORK(&data->update_supply_work, sht15_update_voltage);
+ platform_set_drvdata(pdev, data);
+ mutex_init(&data->read_lock);
+ data->dev = &pdev->dev;
+ init_waitqueue_head(&data->wait_queue);
+
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "no platform data supplied");
+ goto err_free_data;
+ }
+ data->pdata = pdev->dev.platform_data;
+ data->supply_uV = data->pdata->supply_mv*1000;
+
+/* If a regulator is available, query what the supply voltage actually is!*/
+ data->reg = regulator_get(data->dev, "vcc");
+ if (!IS_ERR(data->reg)) {
+ data->supply_uV = regulator_get_voltage(data->reg);
+ regulator_enable(data->reg);
+ /* setup a notifier block to update this if another device
+ * causes the voltage to change */
+ data->nb.notifier_call = &sht15_invalidate_voltage;
+ ret = regulator_register_notifier(data->reg, &data->nb);
+ }
+/* Try requesting the GPIOs */
+ ret = gpio_request(data->pdata->gpio_sck, "SHT15 sck");
+ if (ret) {
+ dev_err(&pdev->dev, "gpio request failed");
+ goto err_free_data;
+ }
+ gpio_direction_output(data->pdata->gpio_sck, 0);
+ ret = gpio_request(data->pdata->gpio_data, "SHT15 data");
+ if (ret) {
+ dev_err(&pdev->dev, "gpio request failed");
+ goto err_release_gpio_sck;
+ }
+ ret = sysfs_create_group(&pdev->dev.kobj, &sht15_attr_group);
+ if (ret) {
+ dev_err(&pdev->dev, "sysfs create failed");
+ goto err_free_data;
+ }
+
+ ret = request_irq(gpio_to_irq(data->pdata->gpio_data),
+ sht15_interrupt_fired,
+ IRQF_TRIGGER_FALLING,
+ "sht15 data",
+ data);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to get irq for data line");
+ goto err_release_gpio_data;
+ }
+ disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+ sht15_connection_reset(data);
+ sht15_send_cmd(data, 0x1E);
+
+ data->hwmon_dev = hwmon_device_register(data->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ ret = PTR_ERR(data->hwmon_dev);
+ goto err_release_gpio_data;
+ }
+ return 0;
+
+err_release_gpio_data:
+ gpio_free(data->pdata->gpio_data);
+err_release_gpio_sck:
+ gpio_free(data->pdata->gpio_sck);
+err_free_data:
+ kfree(data);
+error_ret:
+
+ return ret;
+}
+
+static int __devexit sht15_remove(struct platform_device *pdev)
+{
+ struct sht15_data *data = platform_get_drvdata(pdev);
+
+ /* Make sure any reads from the device are done and
+ * prevent new ones beginnning */
+ mutex_lock(&data->read_lock);
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&pdev->dev.kobj, &sht15_attr_group);
+ if (!IS_ERR(data->reg)) {
+ regulator_unregister_notifier(data->reg, &data->nb);
+ regulator_disable(data->reg);
+ regulator_put(data->reg);
+ }
+
+ free_irq(gpio_to_irq(data->pdata->gpio_data), data);
+ gpio_free(data->pdata->gpio_data);
+ gpio_free(data->pdata->gpio_sck);
+ mutex_unlock(&data->read_lock);
+ kfree(data);
+ return 0;
+}
+
+
+static struct platform_driver sht_drivers[] = {
+ {
+ .driver = {
+ .name = "sht10",
+ .owner = THIS_MODULE,
+ },
+ .probe = sht15_probe,
+ .remove = sht15_remove,
+ }, {
+ .driver = {
+ .name = "sht11",
+ .owner = THIS_MODULE,
+ },
+ .probe = sht15_probe,
+ .remove = sht15_remove,
+ }, {
+ .driver = {
+ .name = "sht15",
+ .owner = THIS_MODULE,
+ },
+ .probe = sht15_probe,
+ .remove = sht15_remove,
+ }, {
+ .driver = {
+ .name = "sht71",
+ .owner = THIS_MODULE,
+ },
+ .probe = sht15_probe,
+ .remove = sht15_remove,
+ }, {
+ .driver = {
+ .name = "sht75",
+ .owner = THIS_MODULE,
+ },
+ .probe = sht15_probe,
+ .remove = sht15_remove,
+ },
+};
+
+
+static int __init sht15_init(void)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(sht_drivers); i++) {
+ ret = platform_driver_register(&sht_drivers[i]);
+ if (ret)
+ goto error_unreg;
+ }
+
+ return 0;
+
+error_unreg:
+ while (--i >= 0)
+ platform_driver_unregister(&sht_drivers[i]);
+
+ return ret;
+}
+module_init(sht15_init);
+
+static void __exit sht15_exit(void)
+{
+ int i;
+ for (i = ARRAY_SIZE(sht_drivers) - 1; i >= 0; i--)
+ platform_driver_unregister(&sht_drivers[i]);
+}
+module_exit(sht15_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index f68e5f8..6318f7d 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -190,7 +190,7 @@
int completed = 1;
unsigned long timeout = jiffies + i2c_adap->timeout;
- while (pca_status(adap) != 0xf8) {
+ while ((state = pca_status(adap)) != 0xf8) {
if (time_before(jiffies, timeout)) {
msleep(10);
} else {
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 94eae5c..a48c8ae 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -604,12 +604,14 @@
depends on PCI
config I2C_VOODOO3
- tristate "Voodoo 3"
+ tristate "Voodoo 3 (DEPRECATED)"
depends on PCI
select I2C_ALGOBIT
help
If you say yes to this option, support will be included for the
- Voodoo 3 I2C interface.
+ Voodoo 3 I2C interface. This driver is deprecated and you should
+ use the tdfxfb driver instead, which additionally provides
+ framebuffer support.
This driver can also be built as a module. If so, the module
will be called i2c-voodoo3.
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index b6f3a0d..85e2e919 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -716,8 +716,7 @@
/* new style driver methods can't mix with legacy ones */
if (is_newstyle_driver(driver)) {
- if (driver->attach_adapter || driver->detach_adapter
- || driver->detach_client) {
+ if (driver->detach_adapter || driver->detach_client) {
printk(KERN_WARNING
"i2c-core: driver [%s] is confused\n",
driver->driver.name);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index ec3db3a..d44065d 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -132,6 +132,11 @@
}
}
+static void input_stop_autorepeat(struct input_dev *dev)
+{
+ del_timer(&dev->timer);
+}
+
#define INPUT_IGNORE_EVENT 0
#define INPUT_PASS_TO_HANDLERS 1
#define INPUT_PASS_TO_DEVICE 2
@@ -167,6 +172,8 @@
__change_bit(code, dev->key);
if (value)
input_start_autorepeat(dev, code);
+ else
+ input_stop_autorepeat(dev);
}
disposition = INPUT_PASS_TO_HANDLERS;
@@ -737,11 +744,11 @@
static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
{
- int state = input_devices_state;
-
poll_wait(file, &input_devices_poll_wait, wait);
- if (state != input_devices_state)
+ if (file->f_version != input_devices_state) {
+ file->f_version = input_devices_state;
return POLLIN | POLLRDNORM;
+ }
return 0;
}
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 45470f1..f999dc6 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -229,7 +229,8 @@
/*
* System-specific ketymap fixup routine
*/
-static void (*atkbd_platform_fixup)(struct atkbd *);
+static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
+static void *atkbd_platform_fixup_data;
static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
ssize_t (*handler)(struct atkbd *, char *));
@@ -834,87 +835,64 @@
}
/*
+ * generate release events for the keycodes given in data
+ */
+static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
+ const void *data)
+{
+ const unsigned int *keys = data;
+ unsigned int i;
+
+ if (atkbd->set == 2)
+ for (i = 0; keys[i] != -1U; i++)
+ __set_bit(keys[i], atkbd->force_release_mask);
+}
+
+/*
* Most special keys (Fn+F?) on Dell laptops do not generate release
* events so we have to do it ourselves.
*/
-static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd)
-{
- static const unsigned int forced_release_keys[] = {
- 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93,
- };
- int i;
-
- if (atkbd->set == 2)
- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
- __set_bit(forced_release_keys[i],
- atkbd->force_release_mask);
-}
+static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
+ 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
+};
/*
* Perform fixup for HP system that doesn't generate release
* for its video switch
*/
-static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
-{
- static const unsigned int forced_release_keys[] = {
- 0x94,
- };
- int i;
-
- if (atkbd->set == 2)
- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
- __set_bit(forced_release_keys[i],
- atkbd->force_release_mask);
-}
+static unsigned int atkbd_hp_forced_release_keys[] = {
+ 0x94, -1U
+};
/*
* Inventec system with broken key release on volume keys
*/
-static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
-{
- const unsigned int forced_release_keys[] = {
- 0xae, 0xb0,
- };
- int i;
-
- if (atkbd->set == 2)
- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
- __set_bit(forced_release_keys[i],
- atkbd->force_release_mask);
-}
+static unsigned int atkbd_inventec_forced_release_keys[] = {
+ 0xae, 0xb0, -1U
+};
/*
* Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
* for its volume buttons
*/
-static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd)
-{
- const unsigned int forced_release_keys[] = {
- 0xae, 0xb0,
- };
- int i;
-
- if (atkbd->set == 2)
- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
- __set_bit(forced_release_keys[i],
- atkbd->force_release_mask);
-}
+static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
+ 0xae, 0xb0, -1U
+};
/*
* Samsung NC10 with Fn+F? key release not working
*/
-static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd)
-{
- const unsigned int forced_release_keys[] = {
- 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
- };
- int i;
+static unsigned int atkbd_samsung_forced_release_keys[] = {
+ 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
+};
- if (atkbd->set == 2)
- for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
- __set_bit(forced_release_keys[i],
- atkbd->force_release_mask);
-}
+/*
+ * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
+ * do not generate release events so we have to do it ourselves.
+ */
+static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
+ 0xb0, 0xae, -1U
+};
/*
* atkbd_set_keycode_table() initializes keyboard's keycode table
@@ -967,7 +945,7 @@
* Perform additional fixups
*/
if (atkbd_platform_fixup)
- atkbd_platform_fixup(atkbd);
+ atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
}
/*
@@ -1492,9 +1470,11 @@
return sprintf(buf, "%lu\n", atkbd->err_count);
}
-static int __init atkbd_setup_fixup(const struct dmi_system_id *id)
+static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
{
- atkbd_platform_fixup = id->driver_data;
+ atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
+ atkbd_platform_fixup_data = id->driver_data;
+
return 0;
}
@@ -1505,8 +1485,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_dell_laptop_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_dell_laptop_forced_release_keys,
},
{
.ident = "Dell Laptop",
@@ -1514,8 +1494,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_dell_laptop_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_dell_laptop_forced_release_keys,
},
{
.ident = "HP 2133",
@@ -1523,8 +1503,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_hp_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_hp_forced_release_keys,
},
{
.ident = "HP Pavilion ZV6100",
@@ -1532,8 +1512,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_hp_zv6100_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_hp_zv6100_forced_release_keys,
},
{
.ident = "Inventec Symphony",
@@ -1541,8 +1521,8 @@
DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_inventec_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_inventec_forced_release_keys,
},
{
.ident = "Samsung NC10",
@@ -1550,8 +1530,17 @@
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
},
- .callback = atkbd_setup_fixup,
- .driver_data = atkbd_samsung_keymap_fixup,
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_samsung_forced_release_keys,
+ },
+ {
+ .ident = "Fujitsu Amilo PA 1510",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_amilo_pa1510_forced_release_keys,
},
{ }
};
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index ee855c5..e94b7d7 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -211,8 +211,8 @@
if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
!pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
- printk(KERN_ERR DRV_NAME
- ": Invalid Debounce/Columdrive Time from pdata\n");
+ printk(KERN_WARNING DRV_NAME
+ ": Invalid Debounce/Columndrive Time in platform data\n");
bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */
} else {
bfin_write_KPAD_MSEL(
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index aacf71f..e9d639e 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -198,45 +198,28 @@
}
-/* initialise HIL */
-static int __init
-hil_keyb_init(void)
+/* initialize HIL */
+static int __devinit hil_keyb_init(void)
{
unsigned char c;
unsigned int i, kbid;
wait_queue_head_t hil_wait;
int err;
- if (hil_dev.dev) {
+ if (hil_dev.dev)
return -ENODEV; /* already initialized */
- }
+ init_waitqueue_head(&hil_wait);
spin_lock_init(&hil_dev.lock);
+
hil_dev.dev = input_allocate_device();
if (!hil_dev.dev)
return -ENOMEM;
-#if defined(CONFIG_HP300)
- if (!MACH_IS_HP300) {
- err = -ENODEV;
- goto err1;
- }
- if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
- printk(KERN_ERR "HIL: hardware register was not found\n");
- err = -ENODEV;
- goto err1;
- }
- if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
- printk(KERN_ERR "HIL: IOPORT region already used\n");
- err = -EIO;
- goto err1;
- }
-#endif
-
err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
if (err) {
printk(KERN_ERR "HIL: Can't get IRQ\n");
- goto err2;
+ goto err1;
}
/* Turn on interrupts */
@@ -246,11 +229,9 @@
hil_dev.valid = 0; /* clear any pending data */
hil_do(HIL_READKBDSADR, NULL, 0);
- init_waitqueue_head(&hil_wait);
- wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ);
- if (!hil_dev.valid) {
+ wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
+ if (!hil_dev.valid)
printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
- }
c = hil_dev.c;
hil_dev.valid = 0;
@@ -268,7 +249,7 @@
for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
if (hphilkeyb_keycode[i] != KEY_RESERVED)
- set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+ __set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
hil_dev.dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
hil_dev.dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
@@ -287,34 +268,45 @@
err = input_register_device(hil_dev.dev);
if (err) {
printk(KERN_ERR "HIL: Can't register device\n");
- goto err3;
+ goto err2;
}
+
printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
return 0;
-err3:
- hil_do(HIL_INTOFF, NULL, 0);
- disable_irq(HIL_IRQ);
- free_irq(HIL_IRQ, hil_dev.dev_id);
err2:
-#if defined(CONFIG_HP300)
- release_region(HILBASE + HIL_DATA, 2);
+ hil_do(HIL_INTOFF, NULL, 0);
+ free_irq(HIL_IRQ, hil_dev.dev_id);
err1:
-#endif
input_free_device(hil_dev.dev);
hil_dev.dev = NULL;
return err;
}
+static void __devexit hil_keyb_exit(void)
+{
+ if (HIL_IRQ)
+ free_irq(HIL_IRQ, hil_dev.dev_id);
+
+ /* Turn off interrupts */
+ hil_do(HIL_INTOFF, NULL, 0);
+
+ input_unregister_device(hil_dev.dev);
+ hil_dev.dev = NULL;
+}
#if defined(CONFIG_PARISC)
-static int __init
-hil_init_chip(struct parisc_device *dev)
+static int __devinit hil_probe_chip(struct parisc_device *dev)
{
+ /* Only allow one HIL keyboard */
+ if (hil_dev.dev)
+ return -ENODEV;
+
if (!dev->irq) {
- printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start);
+ printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
+ (void *)dev->hpa.start);
return -ENODEV;
}
@@ -327,51 +319,79 @@
return hil_keyb_init();
}
+static int __devexit hil_remove_chip(struct parisc_device *dev)
+{
+ hil_keyb_exit();
+
+ return 0;
+}
+
static struct parisc_device_id hil_tbl[] = {
{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
{ 0, }
};
+#if 0
+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
MODULE_DEVICE_TABLE(parisc, hil_tbl);
+#endif
static struct parisc_driver hil_driver = {
- .name = "hil",
- .id_table = hil_tbl,
- .probe = hil_init_chip,
+ .name = "hil",
+ .id_table = hil_tbl,
+ .probe = hil_probe_chip,
+ .remove = __devexit_p(hil_remove_chip),
};
-#endif /* CONFIG_PARISC */
-
static int __init hil_init(void)
{
-#if defined(CONFIG_PARISC)
return register_parisc_driver(&hil_driver);
-#else
- return hil_keyb_init();
-#endif
}
-
static void __exit hil_exit(void)
{
- if (HIL_IRQ) {
- disable_irq(HIL_IRQ);
- free_irq(HIL_IRQ, hil_dev.dev_id);
+ unregister_parisc_driver(&hil_driver);
+}
+
+#else /* !CONFIG_PARISC */
+
+static int __init hil_init(void)
+{
+ int error;
+
+ /* Only allow one HIL keyboard */
+ if (hil_dev.dev)
+ return -EBUSY;
+
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+
+ if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+ printk(KERN_ERR "HIL: hardware register was not found\n");
+ return -ENODEV;
}
- /* Turn off interrupts */
- hil_do(HIL_INTOFF, NULL, 0);
+ if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+ printk(KERN_ERR "HIL: IOPORT region already used\n");
+ return -EIO;
+ }
- input_unregister_device(hil_dev.dev);
+ error = hil_keyb_init();
+ if (error) {
+ release_region(HILBASE + HIL_DATA, 2);
+ return error;
+ }
- hil_dev.dev = NULL;
-
-#if defined(CONFIG_PARISC)
- unregister_parisc_driver(&hil_driver);
-#else
- release_region(HILBASE+HIL_DATA, 2);
-#endif
+ return 0;
}
+static void __exit hil_exit(void)
+{
+ hil_keyb_exit();
+ release_region(HILBASE + HIL_DATA, 2);
+}
+
+#endif /* CONFIG_PARISC */
+
module_init(hil_init);
module_exit(hil_exit);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 67e5553..203abac 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -227,4 +227,27 @@
Say Y to include support for delivering PMU events via input
layer on NXP PCF50633.
+config INPUT_GPIO_ROTARY_ENCODER
+ tristate "Rotary encoders connected to GPIO pins"
+ depends on GPIOLIB && GENERIC_GPIO
+ help
+ Say Y here to add support for rotary encoders connected to GPIO lines.
+ Check file:Documentation/incput/rotary_encoder.txt for more
+ information.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rotary_encoder.
+
+config INPUT_RB532_BUTTON
+ tristate "Mikrotik Routerboard 532 button interface"
+ depends on MIKROTIK_RB532
+ depends on GPIOLIB && GENERIC_GPIO
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want support for the S1 button built into
+ Mikrotik's Routerboard 532.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rb532_button.
+
endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index bb62e6e..eb3f407 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -4,21 +4,23 @@
# Each configuration option enables a list of files.
-obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
-obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
-obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
-obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
-obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
-obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
-obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
+obj-$(CONFIG_INPUT_APANEL) += apanel.o
obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o
obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
-obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
-obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
-obj-$(CONFIG_INPUT_YEALINK) += yealink.o
+obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
obj-$(CONFIG_INPUT_CM109) += cm109.o
+obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
-obj-$(CONFIG_INPUT_UINPUT) += uinput.o
-obj-$(CONFIG_INPUT_APANEL) += apanel.o
-obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
+obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
+obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
+obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
+obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
+obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
+obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
+obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
+obj-$(CONFIG_INPUT_UINPUT) += uinput.o
+obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
+obj-$(CONFIG_INPUT_YEALINK) += yealink.o
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 3c9988d..922c051 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -31,12 +31,73 @@
* newly configured "channel".
*/
-static unsigned int channel_mask = 0xFFFF;
-module_param(channel_mask, uint, 0644);
+enum {
+ ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
+ ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
+};
+
+static int ati_remote2_set_mask(const char *val,
+ struct kernel_param *kp, unsigned int max)
+{
+ unsigned long mask;
+ int ret;
+
+ if (!val)
+ return -EINVAL;
+
+ ret = strict_strtoul(val, 0, &mask);
+ if (ret)
+ return ret;
+
+ if (mask & ~max)
+ return -EINVAL;
+
+ *(unsigned int *)kp->arg = mask;
+
+ return 0;
+}
+
+static int ati_remote2_set_channel_mask(const char *val,
+ struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
+}
+
+static int ati_remote2_get_channel_mask(char *buffer, struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
+}
+
+static int ati_remote2_set_mode_mask(const char *val, struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
+}
+
+static int ati_remote2_get_mode_mask(char *buffer, struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
+}
+
+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_channel_mask ati_remote2_set_channel_mask
+#define param_get_channel_mask ati_remote2_get_channel_mask
+module_param(channel_mask, channel_mask, 0644);
MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
-static unsigned int mode_mask = 0x1F;
-module_param(mode_mask, uint, 0644);
+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
+#define param_set_mode_mask ati_remote2_set_mode_mask
+#define param_get_mode_mask ati_remote2_get_mode_mask
+module_param(mode_mask, mode_mask, 0644);
MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
static struct usb_device_id ati_remote2_id_table[] = {
@@ -133,12 +194,18 @@
u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
unsigned int flags;
+
+ unsigned int channel_mask;
+ unsigned int mode_mask;
};
static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
static void ati_remote2_disconnect(struct usb_interface *interface);
static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
static int ati_remote2_resume(struct usb_interface *interface);
+static int ati_remote2_reset_resume(struct usb_interface *interface);
+static int ati_remote2_pre_reset(struct usb_interface *interface);
+static int ati_remote2_post_reset(struct usb_interface *interface);
static struct usb_driver ati_remote2_driver = {
.name = "ati_remote2",
@@ -147,6 +214,9 @@
.id_table = ati_remote2_id_table,
.suspend = ati_remote2_suspend,
.resume = ati_remote2_resume,
+ .reset_resume = ati_remote2_reset_resume,
+ .pre_reset = ati_remote2_pre_reset,
+ .post_reset = ati_remote2_post_reset,
.supports_autosuspend = 1,
};
@@ -238,7 +308,7 @@
channel = data[0] >> 4;
- if (!((1 << channel) & channel_mask))
+ if (!((1 << channel) & ar2->channel_mask))
return;
mode = data[0] & 0x0F;
@@ -250,7 +320,7 @@
return;
}
- if (!((1 << mode) & mode_mask))
+ if (!((1 << mode) & ar2->mode_mask))
return;
input_event(idev, EV_REL, REL_X, (s8) data[1]);
@@ -277,7 +347,7 @@
channel = data[0] >> 4;
- if (!((1 << channel) & channel_mask))
+ if (!((1 << channel) & ar2->channel_mask))
return;
mode = data[0] & 0x0F;
@@ -305,7 +375,7 @@
ar2->mode = mode;
}
- if (!((1 << mode) & mode_mask))
+ if (!((1 << mode) & ar2->mode_mask))
return;
index = ati_remote2_lookup(hw_code);
@@ -410,7 +480,7 @@
int index, mode;
mode = scancode >> 8;
- if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+ if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
return -EINVAL;
index = ati_remote2_lookup(scancode & 0xFF);
@@ -427,7 +497,7 @@
int index, mode, old_keycode;
mode = scancode >> 8;
- if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+ if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
return -EINVAL;
index = ati_remote2_lookup(scancode & 0xFF);
@@ -550,7 +620,7 @@
}
}
-static int ati_remote2_setup(struct ati_remote2 *ar2)
+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
{
int r, i, channel;
@@ -565,8 +635,8 @@
channel = 0;
for (i = 0; i < 16; i++) {
- if ((1 << i) & channel_mask) {
- if (!(~(1 << i) & 0xFFFF & channel_mask))
+ if ((1 << i) & ch_mask) {
+ if (!(~(1 << i) & ch_mask))
channel = i + 1;
break;
}
@@ -585,6 +655,99 @@
return 0;
}
+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%04x\n", ar2->channel_mask);
+}
+
+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned long mask;
+ int r;
+
+ if (strict_strtoul(buf, 0, &mask))
+ return -EINVAL;
+
+ if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
+ return -EINVAL;
+
+ r = usb_autopm_get_interface(ar2->intf[0]);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+ return r;
+ }
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
+ ar2->channel_mask = mask;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ usb_autopm_put_interface(ar2->intf[0]);
+
+ return count;
+}
+
+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%02x\n", ar2->mode_mask);
+}
+
+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned long mask;
+
+ if (strict_strtoul(buf, 0, &mask))
+ return -EINVAL;
+
+ if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
+ return -EINVAL;
+
+ ar2->mode_mask = mask;
+
+ return count;
+}
+
+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
+ ati_remote2_store_channel_mask);
+
+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
+ ati_remote2_store_mode_mask);
+
+static struct attribute *ati_remote2_attrs[] = {
+ &dev_attr_channel_mask.attr,
+ &dev_attr_mode_mask.attr,
+ NULL,
+};
+
+static struct attribute_group ati_remote2_attr_group = {
+ .attrs = ati_remote2_attrs,
+};
+
static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
@@ -615,7 +778,10 @@
if (r)
goto fail2;
- r = ati_remote2_setup(ar2);
+ ar2->channel_mask = channel_mask;
+ ar2->mode_mask = mode_mask;
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
if (r)
goto fail2;
@@ -624,19 +790,24 @@
strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
- r = ati_remote2_input_init(ar2);
+ r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
if (r)
goto fail2;
+ r = ati_remote2_input_init(ar2);
+ if (r)
+ goto fail3;
+
usb_set_intfdata(interface, ar2);
interface->needs_remote_wakeup = 1;
return 0;
+ fail3:
+ sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
fail2:
ati_remote2_urb_cleanup(ar2);
-
usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
fail1:
kfree(ar2);
@@ -657,6 +828,8 @@
input_unregister_device(ar2->idev);
+ sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
+
ati_remote2_urb_cleanup(ar2);
usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
@@ -715,6 +888,78 @@
return r;
}
+static int ati_remote2_reset_resume(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
+ if (r)
+ goto out;
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ if (!r)
+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ out:
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int ati_remote2_pre_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ ati_remote2_kill_urbs(ar2);
+
+ return 0;
+}
+
+static int ati_remote2_post_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
static int __init ati_remote2_init(void)
{
int r;
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
new file mode 100644
index 0000000..e2c7f62
--- /dev/null
+++ b/drivers/input/misc/rb532_button.c
@@ -0,0 +1,120 @@
+/*
+ * Support for the S1 button on Routerboard 532
+ *
+ * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
+ */
+
+#include <linux/input-polldev.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-rc32434/gpio.h>
+#include <asm/mach-rc32434/rb.h>
+
+#define DRV_NAME "rb532-button"
+
+#define RB532_BTN_RATE 100 /* msec */
+#define RB532_BTN_KSYM BTN_0
+
+/* The S1 button state is provided by GPIO pin 1. But as this
+ * pin is also used for uart input as alternate function, the
+ * operational modes must be switched first:
+ * 1) disable uart using set_latch_u5()
+ * 2) turn off alternate function implicitly through
+ * gpio_direction_input()
+ * 3) read the GPIO's current value
+ * 4) undo step 2 by enabling alternate function (in this
+ * mode the GPIO direction is fixed, so no change needed)
+ * 5) turn on uart again
+ * The GPIO value occurs to be inverted, so pin high means
+ * button is not pressed.
+ */
+static bool rb532_button_pressed(void)
+{
+ int val;
+
+ set_latch_u5(0, LO_FOFF);
+ gpio_direction_input(GPIO_BTN_S1);
+
+ val = gpio_get_value(GPIO_BTN_S1);
+
+ rb532_gpio_set_func(GPIO_BTN_S1);
+ set_latch_u5(LO_FOFF, 0);
+
+ return !val;
+}
+
+static void rb532_button_poll(struct input_polled_dev *poll_dev)
+{
+ input_report_key(poll_dev->input, RB532_BTN_KSYM,
+ rb532_button_pressed());
+ input_sync(poll_dev->input);
+}
+
+static int __devinit rb532_button_probe(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev;
+ int error;
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev)
+ return -ENOMEM;
+
+ poll_dev->poll = rb532_button_poll;
+ poll_dev->poll_interval = RB532_BTN_RATE;
+
+ poll_dev->input->name = "rb532 button";
+ poll_dev->input->phys = "rb532/button0";
+ poll_dev->input->id.bustype = BUS_HOST;
+ poll_dev->input->dev.parent = &pdev->dev;
+
+ dev_set_drvdata(&pdev->dev, poll_dev);
+
+ input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ input_free_polled_device(poll_dev);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __devexit rb532_button_remove(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
+
+ input_unregister_polled_device(poll_dev);
+ input_free_polled_device(poll_dev);
+ dev_set_drvdata(&pdev->dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver rb532_button_driver = {
+ .probe = rb532_button_probe,
+ .remove = __devexit_p(rb532_button_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init rb532_button_init(void)
+{
+ return platform_driver_register(&rb532_button_driver);
+}
+
+static void __exit rb532_button_exit(void)
+{
+ platform_driver_unregister(&rb532_button_driver);
+}
+
+module_init(rb532_button_init);
+module_exit(rb532_button_exit);
+
+MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
new file mode 100644
index 0000000..5bb3ab5
--- /dev/null
+++ b/drivers/input/misc/rotary_encoder.c
@@ -0,0 +1,221 @@
+/*
+ * rotary_encoder.c
+ *
+ * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * state machine code inspired by code from Tim Ruetz
+ *
+ * A generic driver for rotary encoders connected to GPIO lines.
+ * See file:Documentation/input/rotary_encoder.txt for more information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/rotary_encoder.h>
+
+#define DRV_NAME "rotary-encoder"
+
+struct rotary_encoder {
+ unsigned int irq_a;
+ unsigned int irq_b;
+ unsigned int pos;
+ unsigned int armed;
+ unsigned int dir;
+ struct input_dev *input;
+ struct rotary_encoder_platform_data *pdata;
+};
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+ struct rotary_encoder *encoder = dev_id;
+ struct rotary_encoder_platform_data *pdata = encoder->pdata;
+ int a = !!gpio_get_value(pdata->gpio_a);
+ int b = !!gpio_get_value(pdata->gpio_b);
+ int state;
+
+ a ^= pdata->inverted_a;
+ b ^= pdata->inverted_b;
+ state = (a << 1) | b;
+
+ switch (state) {
+
+ case 0x0:
+ if (!encoder->armed)
+ break;
+
+ if (encoder->dir) {
+ /* turning counter-clockwise */
+ encoder->pos += pdata->steps;
+ encoder->pos--;
+ encoder->pos %= pdata->steps;
+ } else {
+ /* turning clockwise */
+ encoder->pos++;
+ encoder->pos %= pdata->steps;
+ }
+
+ input_report_abs(encoder->input, pdata->axis, encoder->pos);
+ input_sync(encoder->input);
+
+ encoder->armed = 0;
+ break;
+
+ case 0x1:
+ case 0x2:
+ if (encoder->armed)
+ encoder->dir = state - 1;
+ break;
+
+ case 0x3:
+ encoder->armed = 1;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit rotary_encoder_probe(struct platform_device *pdev)
+{
+ struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ struct rotary_encoder *encoder;
+ struct input_dev *input;
+ int err;
+
+ if (!pdata || !pdata->steps) {
+ dev_err(&pdev->dev, "invalid platform data\n");
+ return -ENOENT;
+ }
+
+ encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!encoder || !input) {
+ dev_err(&pdev->dev, "failed to allocate memory for device\n");
+ err = -ENOMEM;
+ goto exit_free_mem;
+ }
+
+ encoder->input = input;
+ encoder->pdata = pdata;
+ encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+ encoder->irq_b = gpio_to_irq(pdata->gpio_b);
+
+ /* create and register the input driver */
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+ input->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(encoder->input,
+ pdata->axis, 0, pdata->steps, 0, 1);
+
+ err = input_register_device(input);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto exit_free_mem;
+ }
+
+ /* request the GPIOs */
+ err = gpio_request(pdata->gpio_a, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request GPIO %d\n",
+ pdata->gpio_a);
+ goto exit_unregister_input;
+ }
+
+ err = gpio_request(pdata->gpio_b, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request GPIO %d\n",
+ pdata->gpio_b);
+ goto exit_free_gpio_a;
+ }
+
+ /* request the IRQs */
+ err = request_irq(encoder->irq_a, &rotary_encoder_irq,
+ IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request IRQ %d\n",
+ encoder->irq_a);
+ goto exit_free_gpio_b;
+ }
+
+ err = request_irq(encoder->irq_b, &rotary_encoder_irq,
+ IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request IRQ %d\n",
+ encoder->irq_b);
+ goto exit_free_irq_a;
+ }
+
+ platform_set_drvdata(pdev, encoder);
+
+ return 0;
+
+exit_free_irq_a:
+ free_irq(encoder->irq_a, encoder);
+exit_free_gpio_b:
+ gpio_free(pdata->gpio_b);
+exit_free_gpio_a:
+ gpio_free(pdata->gpio_a);
+exit_unregister_input:
+ input_unregister_device(input);
+ input = NULL; /* so we don't try to free it */
+exit_free_mem:
+ input_free_device(input);
+ kfree(encoder);
+ return err;
+}
+
+static int __devexit rotary_encoder_remove(struct platform_device *pdev)
+{
+ struct rotary_encoder *encoder = platform_get_drvdata(pdev);
+ struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+
+ free_irq(encoder->irq_a, encoder);
+ free_irq(encoder->irq_b, encoder);
+ gpio_free(pdata->gpio_a);
+ gpio_free(pdata->gpio_b);
+ input_unregister_device(encoder->input);
+ platform_set_drvdata(pdev, NULL);
+ kfree(encoder);
+
+ return 0;
+}
+
+static struct platform_driver rotary_encoder_driver = {
+ .probe = rotary_encoder_probe,
+ .remove = __devexit_p(rotary_encoder_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init rotary_encoder_init(void)
+{
+ return platform_driver_register(&rotary_encoder_driver);
+}
+
+static void __exit rotary_encoder_exit(void)
+{
+ platform_driver_unregister(&rotary_encoder_driver);
+}
+
+module_init(rotary_encoder_init);
+module_exit(rotary_encoder_exit);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION("GPIO rotary encoder driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_LICENSE("GPL v2");
+
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 4f38e6f..c66cc3d 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -292,4 +292,15 @@
help
Say Y here to support PXA930 Trackball mouse.
+config MOUSE_MAPLE
+ tristate "Maple mouse (for the Dreamcast)"
+ depends on MAPLE
+ help
+ This driver supports the Maple mouse on the SEGA Dreamcast.
+
+ Most Dreamcast users, who have a mouse, will say Y here.
+
+ To compile this driver as a module choose M here: the module will be
+ called maplemouse.
+
endif
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 8c8a1f2..4721894 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -6,18 +6,19 @@
obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
-obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
-obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
+obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
+obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
+obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
obj-$(CONFIG_MOUSE_INPORT) += inport.o
obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
+obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o
obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o
obj-$(CONFIG_MOUSE_PS2) += psmouse.o
obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o
+obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o
-obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o
-obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
psmouse-objs := psmouse-base.o synaptics.o
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 55cd0fa..a1ad2f1 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -472,7 +472,7 @@
return -EIO;
}
- hgpk_dbg(psmouse, "ID: %02x %02x %02x", param[0], param[1], param[2]);
+ hgpk_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
/* HGPK signature: 0x67, 0x00, 0x<model> */
if (param[0] != 0x67 || param[1] != 0x00)
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
new file mode 100644
index 0000000..d196abf
--- /dev/null
+++ b/drivers/input/mouse/maplemouse.c
@@ -0,0 +1,147 @@
+/*
+ * SEGA Dreamcast mouse driver
+ * Based on drivers/usb/usbmouse.c
+ *
+ * Copyright Yaegashi Takeshi, 2001
+ * Adrian McMenamin, 2008
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
+MODULE_LICENSE("GPL");
+
+struct dc_mouse {
+ struct input_dev *dev;
+ struct maple_device *mdev;
+};
+
+static void dc_mouse_callback(struct mapleq *mq)
+{
+ int buttons, relx, rely, relz;
+ struct maple_device *mapledev = mq->dev;
+ struct dc_mouse *mse = maple_get_drvdata(mapledev);
+ struct input_dev *dev = mse->dev;
+ unsigned char *res = mq->recvbuf;
+
+ buttons = ~res[8];
+ relx = *(unsigned short *)(res + 12) - 512;
+ rely = *(unsigned short *)(res + 14) - 512;
+ relz = *(unsigned short *)(res + 16) - 512;
+
+ input_report_key(dev, BTN_LEFT, buttons & 4);
+ input_report_key(dev, BTN_MIDDLE, buttons & 9);
+ input_report_key(dev, BTN_RIGHT, buttons & 2);
+ input_report_rel(dev, REL_X, relx);
+ input_report_rel(dev, REL_Y, rely);
+ input_report_rel(dev, REL_WHEEL, relz);
+ input_sync(dev);
+}
+
+static int dc_mouse_open(struct input_dev *dev)
+{
+ struct dc_mouse *mse = dev->dev.platform_data;
+
+ maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
+ MAPLE_FUNC_MOUSE);
+
+ return 0;
+}
+
+static void dc_mouse_close(struct input_dev *dev)
+{
+ struct dc_mouse *mse = dev->dev.platform_data;
+
+ maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
+ MAPLE_FUNC_MOUSE);
+}
+
+
+static int __devinit probe_maple_mouse(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ struct input_dev *input_dev;
+ struct dc_mouse *mse;
+ int error;
+
+ mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
+ input_dev = input_allocate_device();
+
+ if (!mse || !input_dev) {
+ error = -ENOMEM;
+ goto fail;
+ }
+
+ mse->dev = input_dev;
+ mse->mdev = mdev;
+
+ input_set_drvdata(input_dev, mse);
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+ input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
+ BIT_MASK(REL_WHEEL);
+ input_dev->name = mdev->product_name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = dc_mouse_open;
+ input_dev->close = dc_mouse_close;
+
+ mdev->driver = mdrv;
+ maple_set_drvdata(mdev, mse);
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto fail;
+
+ return 0;
+
+fail:
+ input_free_device(input_dev);
+ maple_set_drvdata(mdev, NULL);
+ kfree(mse);
+ mdev->driver = NULL;
+ return error;
+}
+
+static int __devexit remove_maple_mouse(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct dc_mouse *mse = maple_get_drvdata(mdev);
+
+ mdev->callback = NULL;
+ input_unregister_device(mse->dev);
+ maple_set_drvdata(mdev, NULL);
+ kfree(mse);
+
+ return 0;
+}
+
+static struct maple_driver dc_mouse_driver = {
+ .function = MAPLE_FUNC_MOUSE,
+ .drv = {
+ .name = "Dreamcast_mouse",
+ .probe = probe_maple_mouse,
+ .remove = __devexit_p(remove_maple_mouse),
+ },
+};
+
+static int __init dc_mouse_init(void)
+{
+ return maple_driver_register(&dc_mouse_driver);
+}
+
+static void __exit dc_mouse_exit(void)
+{
+ maple_driver_unregister(&dc_mouse_driver);
+}
+
+module_init(dc_mouse_init);
+module_exit(dc_mouse_exit);
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index fd09c8d..f63995f 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -111,11 +111,8 @@
struct pci_dev *dev;
int err;
- dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
- if (dev) {
- pci_dev_put(dev);
+ if (!no_pci_devices())
return -ENODEV;
- }
if (!request_region(pc110pad_io, 4, "pc110pad")) {
printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6fa2def..83ed2d5 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -151,6 +151,14 @@
DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
},
},
+ {
+ .ident = "HP DV9700",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
+ },
+ },
{ }
};
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index bb6486a..b01fd61d 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -29,6 +29,51 @@
To compile this driver as a module, choose M here: the
module will be called ads7846.
+config TOUCHSCREEN_AD7877
+ tristate "AD7877 based touchscreens"
+ depends on SPI_MASTER
+ help
+ Say Y here if you have a touchscreen interface using the
+ AD7877 controller, and your board-specific initialization
+ code includes that in its table of SPI devices.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7877.
+
+config TOUCHSCREEN_AD7879_I2C
+ tristate "AD7879 based touchscreens: AD7879-1 I2C Interface"
+ depends on I2C
+ select TOUCHSCREEN_AD7879
+ help
+ Say Y here if you have a touchscreen interface using the
+ AD7879-1 controller, and your board-specific initialization
+ code includes that in its table of I2C devices.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7879.
+
+config TOUCHSCREEN_AD7879_SPI
+ tristate "AD7879 based touchscreens: AD7879 SPI Interface"
+ depends on SPI_MASTER && TOUCHSCREEN_AD7879_I2C = n
+ select TOUCHSCREEN_AD7879
+ help
+ Say Y here if you have a touchscreen interface using the
+ AD7879 controller, and your board-specific initialization
+ code includes that in its table of SPI devices.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7879.
+
+config TOUCHSCREEN_AD7879
+ tristate
+ default n
+
config TOUCHSCREEN_BITSY
tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
depends on SA1100_BITSY
@@ -308,6 +353,19 @@
To compile this driver as a module, choose M here: the
module will be called mainstone-wm97xx.
+config TOUCHSCREEN_WM97XX_ZYLONITE
+ tristate "Zylonite accelerated touch"
+ depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
+ select TOUCHSCREEN_WM9713
+ help
+ Say Y here for support for streaming mode with the touchscreen
+ on Zylonite systems.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called zylonite-wm97xx.
+
config TOUCHSCREEN_USB_COMPOSITE
tristate "USB Touchscreen Driver"
depends on USB_ARCH_HAS_HCD
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index d3375af..6700f7b9 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,6 +6,8 @@
wm97xx-ts-y := wm97xx-core.o
+obj-$(CONFIG_TOUCHSCREEN_AD7877) += ad7877.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
@@ -34,3 +36,4 @@
wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o
wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o
obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
new file mode 100644
index 0000000..e4728a2
--- /dev/null
+++ b/drivers/input/touchscreen/ad7877.c
@@ -0,0 +1,844 @@
+/*
+ * Copyright (C) 2006-2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description: AD7877 based touchscreen, sensor (ADCs), DAC and GPIO driver
+ * Based on: ads7846.c
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ */
+
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ad7877.h>
+#include <asm/irq.h>
+
+#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
+
+#define MAX_SPI_FREQ_HZ 20000000
+#define MAX_12BIT ((1<<12)-1)
+
+#define AD7877_REG_ZEROS 0
+#define AD7877_REG_CTRL1 1
+#define AD7877_REG_CTRL2 2
+#define AD7877_REG_ALERT 3
+#define AD7877_REG_AUX1HIGH 4
+#define AD7877_REG_AUX1LOW 5
+#define AD7877_REG_BAT1HIGH 6
+#define AD7877_REG_BAT1LOW 7
+#define AD7877_REG_BAT2HIGH 8
+#define AD7877_REG_BAT2LOW 9
+#define AD7877_REG_TEMP1HIGH 10
+#define AD7877_REG_TEMP1LOW 11
+#define AD7877_REG_SEQ0 12
+#define AD7877_REG_SEQ1 13
+#define AD7877_REG_DAC 14
+#define AD7877_REG_NONE1 15
+#define AD7877_REG_EXTWRITE 15
+#define AD7877_REG_XPLUS 16
+#define AD7877_REG_YPLUS 17
+#define AD7877_REG_Z2 18
+#define AD7877_REG_aux1 19
+#define AD7877_REG_aux2 20
+#define AD7877_REG_aux3 21
+#define AD7877_REG_bat1 22
+#define AD7877_REG_bat2 23
+#define AD7877_REG_temp1 24
+#define AD7877_REG_temp2 25
+#define AD7877_REG_Z1 26
+#define AD7877_REG_GPIOCTRL1 27
+#define AD7877_REG_GPIOCTRL2 28
+#define AD7877_REG_GPIODATA 29
+#define AD7877_REG_NONE2 30
+#define AD7877_REG_NONE3 31
+
+#define AD7877_SEQ_YPLUS_BIT (1<<11)
+#define AD7877_SEQ_XPLUS_BIT (1<<10)
+#define AD7877_SEQ_Z2_BIT (1<<9)
+#define AD7877_SEQ_AUX1_BIT (1<<8)
+#define AD7877_SEQ_AUX2_BIT (1<<7)
+#define AD7877_SEQ_AUX3_BIT (1<<6)
+#define AD7877_SEQ_BAT1_BIT (1<<5)
+#define AD7877_SEQ_BAT2_BIT (1<<4)
+#define AD7877_SEQ_TEMP1_BIT (1<<3)
+#define AD7877_SEQ_TEMP2_BIT (1<<2)
+#define AD7877_SEQ_Z1_BIT (1<<1)
+
+enum {
+ AD7877_SEQ_YPOS = 0,
+ AD7877_SEQ_XPOS = 1,
+ AD7877_SEQ_Z2 = 2,
+ AD7877_SEQ_AUX1 = 3,
+ AD7877_SEQ_AUX2 = 4,
+ AD7877_SEQ_AUX3 = 5,
+ AD7877_SEQ_BAT1 = 6,
+ AD7877_SEQ_BAT2 = 7,
+ AD7877_SEQ_TEMP1 = 8,
+ AD7877_SEQ_TEMP2 = 9,
+ AD7877_SEQ_Z1 = 10,
+ AD7877_NR_SENSE = 11,
+};
+
+/* DAC Register Default RANGE 0 to Vcc, Volatge Mode, DAC On */
+#define AD7877_DAC_CONF 0x1
+
+/* If gpio3 is set AUX3/GPIO3 acts as GPIO Output */
+#define AD7877_EXTW_GPIO_3_CONF 0x1C4
+#define AD7877_EXTW_GPIO_DATA 0x200
+
+/* Control REG 2 */
+#define AD7877_TMR(x) ((x & 0x3) << 0)
+#define AD7877_REF(x) ((x & 0x1) << 2)
+#define AD7877_POL(x) ((x & 0x1) << 3)
+#define AD7877_FCD(x) ((x & 0x3) << 4)
+#define AD7877_PM(x) ((x & 0x3) << 6)
+#define AD7877_ACQ(x) ((x & 0x3) << 8)
+#define AD7877_AVG(x) ((x & 0x3) << 10)
+
+/* Control REG 1 */
+#define AD7877_SER (1 << 11) /* non-differential */
+#define AD7877_DFR (0 << 11) /* differential */
+
+#define AD7877_MODE_NOC (0) /* Do not convert */
+#define AD7877_MODE_SCC (1) /* Single channel conversion */
+#define AD7877_MODE_SEQ0 (2) /* Sequence 0 in Slave Mode */
+#define AD7877_MODE_SEQ1 (3) /* Sequence 1 in Master Mode */
+
+#define AD7877_CHANADD(x) ((x&0xF)<<7)
+#define AD7877_READADD(x) ((x)<<2)
+#define AD7877_WRITEADD(x) ((x)<<12)
+
+#define AD7877_READ_CHAN(x) (AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_SER | \
+ AD7877_MODE_SCC | AD7877_CHANADD(AD7877_REG_ ## x) | \
+ AD7877_READADD(AD7877_REG_ ## x))
+
+#define AD7877_MM_SEQUENCE (AD7877_SEQ_YPLUS_BIT | AD7877_SEQ_XPLUS_BIT | \
+ AD7877_SEQ_Z2_BIT | AD7877_SEQ_Z1_BIT)
+
+/*
+ * Non-touchscreen sensors only use single-ended conversions.
+ */
+
+struct ser_req {
+ u16 reset;
+ u16 ref_on;
+ u16 command;
+ u16 sample;
+ struct spi_message msg;
+ struct spi_transfer xfer[6];
+};
+
+struct ad7877 {
+ struct input_dev *input;
+ char phys[32];
+
+ struct spi_device *spi;
+ u16 model;
+ u16 vref_delay_usecs;
+ u16 x_plate_ohms;
+ u16 pressure_max;
+
+ u16 cmd_crtl1;
+ u16 cmd_crtl2;
+ u16 cmd_dummy;
+ u16 dac;
+
+ u8 stopacq_polarity;
+ u8 first_conversion_delay;
+ u8 acquisition_time;
+ u8 averaging;
+ u8 pen_down_acc_interval;
+
+ u16 conversion_data[AD7877_NR_SENSE];
+
+ struct spi_transfer xfer[AD7877_NR_SENSE + 2];
+ struct spi_message msg;
+
+ struct mutex mutex;
+ unsigned disabled:1; /* P: mutex */
+ unsigned gpio3:1; /* P: mutex */
+ unsigned gpio4:1; /* P: mutex */
+
+ spinlock_t lock;
+ struct timer_list timer; /* P: lock */
+ unsigned pending:1; /* P: lock */
+};
+
+static int gpio3;
+module_param(gpio3, int, 0);
+MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
+
+/*
+ * ad7877_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done using spi_async() in the interrupt handler.
+ */
+
+static int ad7877_read(struct spi_device *spi, u16 reg)
+{
+ struct ser_req *req;
+ int status, ret;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) (AD7877_WRITEADD(AD7877_REG_CTRL1) |
+ AD7877_READADD(reg));
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+
+ req->xfer[1].rx_buf = &req->sample;
+ req->xfer[1].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+ spi_message_add_tail(&req->xfer[1], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+ ret = status ? : req->sample;
+
+ kfree(req);
+
+ return ret;
+}
+
+static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)
+{
+ struct ser_req *req;
+ int status;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) (AD7877_WRITEADD(reg) | (val & MAX_12BIT));
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+
+ kfree(req);
+
+ return status;
+}
+
+static int ad7877_read_adc(struct spi_device *spi, unsigned command)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+ struct ser_req *req;
+ int status;
+ int sample;
+ int i;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ /* activate reference, so it has time to settle; */
+ req->ref_on = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+ AD7877_POL(ts->stopacq_polarity) |
+ AD7877_AVG(0) | AD7877_PM(2) | AD7877_TMR(0) |
+ AD7877_ACQ(ts->acquisition_time) | AD7877_FCD(0);
+
+ req->reset = AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_MODE_NOC;
+
+ req->command = (u16) command;
+
+ req->xfer[0].tx_buf = &req->reset;
+ req->xfer[0].len = 2;
+
+ req->xfer[1].tx_buf = &req->ref_on;
+ req->xfer[1].len = 2;
+ req->xfer[1].delay_usecs = ts->vref_delay_usecs;
+
+ req->xfer[2].tx_buf = &req->command;
+ req->xfer[2].len = 2;
+ req->xfer[2].delay_usecs = ts->vref_delay_usecs;
+
+ req->xfer[3].rx_buf = &req->sample;
+ req->xfer[3].len = 2;
+
+ req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/
+ req->xfer[4].len = 2;
+
+ req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/
+ req->xfer[5].len = 2;
+
+ /* group all the transfers together, so we can't interfere with
+ * reading touchscreen state; disable penirq while sampling
+ */
+ for (i = 0; i < 6; i++)
+ spi_message_add_tail(&req->xfer[i], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+ sample = req->sample;
+
+ kfree(req);
+
+ return status ? : sample;
+}
+
+static void ad7877_rx(struct ad7877 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+ unsigned Rt;
+ u16 x, y, z1, z2;
+
+ x = ts->conversion_data[AD7877_SEQ_XPOS] & MAX_12BIT;
+ y = ts->conversion_data[AD7877_SEQ_YPOS] & MAX_12BIT;
+ z1 = ts->conversion_data[AD7877_SEQ_Z1] & MAX_12BIT;
+ z2 = ts->conversion_data[AD7877_SEQ_Z2] & MAX_12BIT;
+
+ /*
+ * The samples processed here are already preprocessed by the AD7877.
+ * The preprocessing function consists of an averaging filter.
+ * The combination of 'first conversion delay' and averaging provides a robust solution,
+ * discarding the spurious noise in the signal and keeping only the data of interest.
+ * The size of the averaging filter is programmable. (dev.platform_data, see linux/spi/ad7877.h)
+ * Other user-programmable conversion controls include variable acquisition time,
+ * and first conversion delay. Up to 16 averages can be taken per conversion.
+ */
+
+ if (likely(x && z1)) {
+ /* compute touch pressure resistance using equation #1 */
+ Rt = (z2 - z1) * x * ts->x_plate_ohms;
+ Rt /= z1;
+ Rt = (Rt + 2047) >> 12;
+
+ input_report_abs(input_dev, ABS_X, x);
+ input_report_abs(input_dev, ABS_Y, y);
+ input_report_abs(input_dev, ABS_PRESSURE, Rt);
+ input_sync(input_dev);
+ }
+}
+
+static inline void ad7877_ts_event_release(struct ad7877 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_sync(input_dev);
+}
+
+static void ad7877_timer(unsigned long handle)
+{
+ struct ad7877 *ts = (void *)handle;
+
+ ad7877_ts_event_release(ts);
+}
+
+static irqreturn_t ad7877_irq(int irq, void *handle)
+{
+ struct ad7877 *ts = handle;
+ unsigned long flags;
+ int status;
+
+ /*
+ * The repeated conversion sequencer controlled by TMR kicked off
+ * too fast. We ignore the last and process the sample sequence
+ * currently in the queue. It can't be older than 9.4ms, and we
+ * need to avoid that ts->msg doesn't get issued twice while in work.
+ */
+
+ spin_lock_irqsave(&ts->lock, flags);
+ if (!ts->pending) {
+ ts->pending = 1;
+
+ status = spi_async(ts->spi, &ts->msg);
+ if (status)
+ dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
+ }
+ spin_unlock_irqrestore(&ts->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static void ad7877_callback(void *_ts)
+{
+ struct ad7877 *ts = _ts;
+
+ spin_lock_irq(&ts->lock);
+
+ ad7877_rx(ts);
+ ts->pending = 0;
+ mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+
+ spin_unlock_irq(&ts->lock);
+}
+
+static void ad7877_disable(struct ad7877 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (!ts->disabled) {
+ ts->disabled = 1;
+ disable_irq(ts->spi->irq);
+
+ /* Wait for spi_async callback */
+ while (ts->pending)
+ msleep(1);
+
+ if (del_timer_sync(&ts->timer))
+ ad7877_ts_event_release(ts);
+ }
+
+ /* we know the chip's in lowpower mode since we always
+ * leave it that way after every request
+ */
+
+ mutex_unlock(&ts->mutex);
+}
+
+static void ad7877_enable(struct ad7877 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (ts->disabled) {
+ ts->disabled = 0;
+ enable_irq(ts->spi->irq);
+ }
+
+ mutex_unlock(&ts->mutex);
+}
+
+#define SHOW(name) static ssize_t \
+name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct ad7877 *ts = dev_get_drvdata(dev); \
+ ssize_t v = ad7877_read_adc(ts->spi, \
+ AD7877_READ_CHAN(name)); \
+ if (v < 0) \
+ return v; \
+ return sprintf(buf, "%u\n", (unsigned) v); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
+
+SHOW(aux1)
+SHOW(aux2)
+SHOW(aux3)
+SHOW(bat1)
+SHOW(bat2)
+SHOW(temp1)
+SHOW(temp2)
+
+static ssize_t ad7877_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7877_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ if (val)
+ ad7877_disable(ts);
+ else
+ ad7877_enable(ts);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
+
+static ssize_t ad7877_dac_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->dac);
+}
+
+static ssize_t ad7877_dac_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->dac = val & 0xFF;
+ ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
+
+static ssize_t ad7877_gpio3_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->gpio3);
+}
+
+static ssize_t ad7877_gpio3_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->gpio3 = !!val;
+ ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+ (ts->gpio4 << 4) | (ts->gpio3 << 5));
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
+
+static ssize_t ad7877_gpio4_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->gpio4);
+}
+
+static ssize_t ad7877_gpio4_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->gpio4 = !!val;
+ ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+ (ts->gpio4 << 4) | (ts->gpio3 << 5));
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(gpio4, 0664, ad7877_gpio4_show, ad7877_gpio4_store);
+
+static struct attribute *ad7877_attributes[] = {
+ &dev_attr_temp1.attr,
+ &dev_attr_temp2.attr,
+ &dev_attr_aux1.attr,
+ &dev_attr_aux2.attr,
+ &dev_attr_bat1.attr,
+ &dev_attr_bat2.attr,
+ &dev_attr_disable.attr,
+ &dev_attr_dac.attr,
+ &dev_attr_gpio4.attr,
+ NULL
+};
+
+static const struct attribute_group ad7877_attr_group = {
+ .attrs = ad7877_attributes,
+};
+
+static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
+{
+ struct spi_message *m;
+ int i;
+
+ ts->cmd_crtl2 = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+ AD7877_POL(ts->stopacq_polarity) |
+ AD7877_AVG(ts->averaging) | AD7877_PM(1) |
+ AD7877_TMR(ts->pen_down_acc_interval) |
+ AD7877_ACQ(ts->acquisition_time) |
+ AD7877_FCD(ts->first_conversion_delay);
+
+ ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);
+
+ ts->cmd_crtl1 = AD7877_WRITEADD(AD7877_REG_CTRL1) |
+ AD7877_READADD(AD7877_REG_XPLUS-1) |
+ AD7877_MODE_SEQ1 | AD7877_DFR;
+
+ ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);
+
+ ts->cmd_dummy = 0;
+
+ m = &ts->msg;
+
+ spi_message_init(m);
+
+ m->complete = ad7877_callback;
+ m->context = ts;
+
+ ts->xfer[0].tx_buf = &ts->cmd_crtl1;
+ ts->xfer[0].len = 2;
+
+ spi_message_add_tail(&ts->xfer[0], m);
+
+ ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
+ ts->xfer[1].len = 2;
+
+ spi_message_add_tail(&ts->xfer[1], m);
+
+ for (i = 0; i < 11; i++) {
+ ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
+ ts->xfer[i + 2].len = 2;
+ spi_message_add_tail(&ts->xfer[i + 2], m);
+ }
+}
+
+static int __devinit ad7877_probe(struct spi_device *spi)
+{
+ struct ad7877 *ts;
+ struct input_dev *input_dev;
+ struct ad7877_platform_data *pdata = spi->dev.platform_data;
+ int err;
+ u16 verify;
+
+ if (!spi->irq) {
+ dev_dbg(&spi->dev, "no IRQ?\n");
+ return -ENODEV;
+ }
+
+ if (!pdata) {
+ dev_dbg(&spi->dev, "no platform data?\n");
+ return -ENODEV;
+ }
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ dev_set_drvdata(&spi->dev, ts);
+ ts->spi = spi;
+ ts->input = input_dev;
+
+ setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+ mutex_init(&ts->mutex);
+ spin_lock_init(&ts->lock);
+
+ ts->model = pdata->model ? : 7877;
+ ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
+ ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+ ts->pressure_max = pdata->pressure_max ? : ~0;
+
+ ts->stopacq_polarity = pdata->stopacq_polarity;
+ ts->first_conversion_delay = pdata->first_conversion_delay;
+ ts->acquisition_time = pdata->acquisition_time;
+ ts->averaging = pdata->averaging;
+ ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
+
+ input_dev->name = "AD7877 Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->dev.parent = &spi->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ pdata->x_min ? : 0,
+ pdata->x_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ pdata->y_min ? : 0,
+ pdata->y_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+ ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);
+
+ verify = ad7877_read(spi, AD7877_REG_SEQ1);
+
+ if (verify != AD7877_MM_SEQUENCE){
+ dev_err(&spi->dev, "%s: Failed to probe %s\n",
+ dev_name(&spi->dev), input_dev->name);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ if (gpio3)
+ ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);
+
+ ad7877_setup_ts_def_msg(spi, ts);
+
+ /* Request AD7877 /DAV GPIO interrupt */
+
+ err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
+ IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
+ if (err) {
+ dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
+ goto err_free_mem;
+ }
+
+ err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = device_create_file(&spi->dev,
+ gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+ if (err)
+ goto err_remove_attr_group;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr;
+
+ return 0;
+
+err_remove_attr:
+ device_remove_file(&spi->dev,
+ gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+err_remove_attr_group:
+ sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+err_free_irq:
+ free_irq(spi->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ dev_set_drvdata(&spi->dev, NULL);
+ return err;
+}
+
+static int __devexit ad7877_remove(struct spi_device *spi)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+ sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+ device_remove_file(&spi->dev,
+ gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
+
+ ad7877_disable(ts);
+ free_irq(ts->spi->irq, ts);
+
+ input_unregister_device(ts->input);
+ kfree(ts);
+
+ dev_dbg(&spi->dev, "unregistered touchscreen\n");
+ dev_set_drvdata(&spi->dev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+ ad7877_disable(ts);
+
+ return 0;
+}
+
+static int ad7877_resume(struct spi_device *spi)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+ ad7877_enable(ts);
+
+ return 0;
+}
+#else
+#define ad7877_suspend NULL
+#define ad7877_resume NULL
+#endif
+
+static struct spi_driver ad7877_driver = {
+ .driver = {
+ .name = "ad7877",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = ad7877_probe,
+ .remove = __devexit_p(ad7877_remove),
+ .suspend = ad7877_suspend,
+ .resume = ad7877_resume,
+};
+
+static int __init ad7877_init(void)
+{
+ return spi_register_driver(&ad7877_driver);
+}
+module_init(ad7877_init);
+
+static void __exit ad7877_exit(void)
+{
+ spi_unregister_driver(&ad7877_driver);
+}
+module_exit(ad7877_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7877 touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
new file mode 100644
index 0000000..ea4c61d
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.c
@@ -0,0 +1,782 @@
+/*
+ * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description: AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface)
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ * - ad7877.c
+ * Copyright (C) 2006-2008 Analog Devices Inc.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+
+#include <linux/spi/ad7879.h>
+
+#define AD7879_REG_ZEROS 0
+#define AD7879_REG_CTRL1 1
+#define AD7879_REG_CTRL2 2
+#define AD7879_REG_CTRL3 3
+#define AD7879_REG_AUX1HIGH 4
+#define AD7879_REG_AUX1LOW 5
+#define AD7879_REG_TEMP1HIGH 6
+#define AD7879_REG_TEMP1LOW 7
+#define AD7879_REG_XPLUS 8
+#define AD7879_REG_YPLUS 9
+#define AD7879_REG_Z1 10
+#define AD7879_REG_Z2 11
+#define AD7879_REG_AUXVBAT 12
+#define AD7879_REG_TEMP 13
+#define AD7879_REG_REVID 14
+
+/* Control REG 1 */
+#define AD7879_TMR(x) ((x & 0xFF) << 0)
+#define AD7879_ACQ(x) ((x & 0x3) << 8)
+#define AD7879_MODE_NOC (0 << 10) /* Do not convert */
+#define AD7879_MODE_SCC (1 << 10) /* Single channel conversion */
+#define AD7879_MODE_SEQ0 (2 << 10) /* Sequence 0 in Slave Mode */
+#define AD7879_MODE_SEQ1 (3 << 10) /* Sequence 1 in Master Mode */
+#define AD7879_MODE_INT (1 << 15) /* PENIRQ disabled INT enabled */
+
+/* Control REG 2 */
+#define AD7879_FCD(x) ((x & 0x3) << 0)
+#define AD7879_RESET (1 << 4)
+#define AD7879_MFS(x) ((x & 0x3) << 5)
+#define AD7879_AVG(x) ((x & 0x3) << 7)
+#define AD7879_SER (1 << 9) /* non-differential */
+#define AD7879_DFR (0 << 9) /* differential */
+#define AD7879_GPIOPOL (1 << 10)
+#define AD7879_GPIODIR (1 << 11)
+#define AD7879_GPIO_DATA (1 << 12)
+#define AD7879_GPIO_EN (1 << 13)
+#define AD7879_PM(x) ((x & 0x3) << 14)
+#define AD7879_PM_SHUTDOWN (0)
+#define AD7879_PM_DYN (1)
+#define AD7879_PM_FULLON (2)
+
+/* Control REG 3 */
+#define AD7879_TEMPMASK_BIT (1<<15)
+#define AD7879_AUXVBATMASK_BIT (1<<14)
+#define AD7879_INTMODE_BIT (1<<13)
+#define AD7879_GPIOALERTMASK_BIT (1<<12)
+#define AD7879_AUXLOW_BIT (1<<11)
+#define AD7879_AUXHIGH_BIT (1<<10)
+#define AD7879_TEMPLOW_BIT (1<<9)
+#define AD7879_TEMPHIGH_BIT (1<<8)
+#define AD7879_YPLUS_BIT (1<<7)
+#define AD7879_XPLUS_BIT (1<<6)
+#define AD7879_Z1_BIT (1<<5)
+#define AD7879_Z2_BIT (1<<4)
+#define AD7879_AUX_BIT (1<<3)
+#define AD7879_VBAT_BIT (1<<2)
+#define AD7879_TEMP_BIT (1<<1)
+
+enum {
+ AD7879_SEQ_XPOS = 0,
+ AD7879_SEQ_YPOS = 1,
+ AD7879_SEQ_Z1 = 2,
+ AD7879_SEQ_Z2 = 3,
+ AD7879_NR_SENSE = 4,
+};
+
+#define MAX_12BIT ((1<<12)-1)
+#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define AD7879_DEVID 0x7A
+typedef struct spi_device bus_device;
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+#define AD7879_DEVID 0x79
+typedef struct i2c_client bus_device;
+#endif
+
+struct ad7879 {
+ bus_device *bus;
+ struct input_dev *input;
+ struct work_struct work;
+ struct timer_list timer;
+
+ struct mutex mutex;
+ unsigned disabled:1; /* P: mutex */
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+ struct spi_message msg;
+ struct spi_transfer xfer[AD7879_NR_SENSE + 1];
+ u16 cmd;
+#endif
+ u16 conversion_data[AD7879_NR_SENSE];
+ char phys[32];
+ u8 first_conversion_delay;
+ u8 acquisition_time;
+ u8 averaging;
+ u8 pen_down_acc_interval;
+ u8 median;
+ u16 x_plate_ohms;
+ u16 pressure_max;
+ u16 gpio_init;
+ u16 cmd_crtl1;
+ u16 cmd_crtl2;
+ u16 cmd_crtl3;
+ unsigned gpio:1;
+};
+
+static int ad7879_read(bus_device *, u8);
+static int ad7879_write(bus_device *, u8, u16);
+static void ad7879_collect(struct ad7879 *);
+
+static void ad7879_report(struct ad7879 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+ unsigned Rt;
+ u16 x, y, z1, z2;
+
+ x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
+ y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
+ z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
+ z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
+
+ /*
+ * The samples processed here are already preprocessed by the AD7879.
+ * The preprocessing function consists of a median and an averaging filter.
+ * The combination of these two techniques provides a robust solution,
+ * discarding the spurious noise in the signal and keeping only the data of interest.
+ * The size of both filters is programmable. (dev.platform_data, see linux/spi/ad7879.h)
+ * Other user-programmable conversion controls include variable acquisition time,
+ * and first conversion delay. Up to 16 averages can be taken per conversion.
+ */
+
+ if (likely(x && z1)) {
+ /* compute touch pressure resistance using equation #1 */
+ Rt = (z2 - z1) * x * ts->x_plate_ohms;
+ Rt /= z1;
+ Rt = (Rt + 2047) >> 12;
+
+ input_report_abs(input_dev, ABS_X, x);
+ input_report_abs(input_dev, ABS_Y, y);
+ input_report_abs(input_dev, ABS_PRESSURE, Rt);
+ input_sync(input_dev);
+ }
+}
+
+static void ad7879_work(struct work_struct *work)
+{
+ struct ad7879 *ts = container_of(work, struct ad7879, work);
+
+ /* use keventd context to read the result registers */
+ ad7879_collect(ts);
+ ad7879_report(ts);
+ mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+}
+
+static void ad7879_ts_event_release(struct ad7879 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_sync(input_dev);
+}
+
+static void ad7879_timer(unsigned long handle)
+{
+ struct ad7879 *ts = (void *)handle;
+
+ ad7879_ts_event_release(ts);
+}
+
+static irqreturn_t ad7879_irq(int irq, void *handle)
+{
+ struct ad7879 *ts = handle;
+
+ /* The repeated conversion sequencer controlled by TMR kicked off too fast.
+ * We ignore the last and process the sample sequence currently in the queue.
+ * It can't be older than 9.4ms
+ */
+
+ if (!work_pending(&ts->work))
+ schedule_work(&ts->work);
+
+ return IRQ_HANDLED;
+}
+
+static void ad7879_setup(struct ad7879 *ts)
+{
+ ts->cmd_crtl3 = AD7879_YPLUS_BIT |
+ AD7879_XPLUS_BIT |
+ AD7879_Z2_BIT |
+ AD7879_Z1_BIT |
+ AD7879_TEMPMASK_BIT |
+ AD7879_AUXVBATMASK_BIT |
+ AD7879_GPIOALERTMASK_BIT;
+
+ ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
+ AD7879_AVG(ts->averaging) |
+ AD7879_MFS(ts->median) |
+ AD7879_FCD(ts->first_conversion_delay) |
+ ts->gpio_init;
+
+ ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
+ AD7879_ACQ(ts->acquisition_time) |
+ AD7879_TMR(ts->pen_down_acc_interval);
+
+ ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ ad7879_write(ts->bus, AD7879_REG_CTRL3, ts->cmd_crtl3);
+ ad7879_write(ts->bus, AD7879_REG_CTRL1, ts->cmd_crtl1);
+}
+
+static void ad7879_disable(struct ad7879 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (!ts->disabled) {
+
+ ts->disabled = 1;
+ disable_irq(ts->bus->irq);
+
+ cancel_work_sync(&ts->work);
+
+ if (del_timer_sync(&ts->timer))
+ ad7879_ts_event_release(ts);
+
+ ad7879_write(ts->bus, AD7879_REG_CTRL2,
+ AD7879_PM(AD7879_PM_SHUTDOWN));
+ }
+
+ mutex_unlock(&ts->mutex);
+}
+
+static void ad7879_enable(struct ad7879 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (ts->disabled) {
+ ad7879_setup(ts);
+ ts->disabled = 0;
+ enable_irq(ts->bus->irq);
+ }
+
+ mutex_unlock(&ts->mutex);
+}
+
+static ssize_t ad7879_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7879_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ if (val)
+ ad7879_disable(ts);
+ else
+ ad7879_enable(ts);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
+
+static ssize_t ad7879_gpio_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->gpio);
+}
+
+static ssize_t ad7879_gpio_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->gpio = !!val;
+ error = ad7879_write(ts->bus, AD7879_REG_CTRL2,
+ ts->gpio ?
+ ts->cmd_crtl2 & ~AD7879_GPIO_DATA :
+ ts->cmd_crtl2 | AD7879_GPIO_DATA);
+ mutex_unlock(&ts->mutex);
+
+ return error ? : count;
+}
+
+static DEVICE_ATTR(gpio, 0664, ad7879_gpio_show, ad7879_gpio_store);
+
+static struct attribute *ad7879_attributes[] = {
+ &dev_attr_disable.attr,
+ &dev_attr_gpio.attr,
+ NULL
+};
+
+static const struct attribute_group ad7879_attr_group = {
+ .attrs = ad7879_attributes,
+};
+
+static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
+{
+ struct input_dev *input_dev;
+ struct ad7879_platform_data *pdata = bus->dev.platform_data;
+ int err;
+ u16 revid;
+
+ if (!bus->irq) {
+ dev_err(&bus->dev, "no IRQ?\n");
+ return -ENODEV;
+ }
+
+ if (!pdata) {
+ dev_err(&bus->dev, "no platform data?\n");
+ return -ENODEV;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ ts->input = input_dev;
+
+ setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+ INIT_WORK(&ts->work, ad7879_work);
+ mutex_init(&ts->mutex);
+
+ ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+ ts->pressure_max = pdata->pressure_max ? : ~0;
+
+ ts->first_conversion_delay = pdata->first_conversion_delay;
+ ts->acquisition_time = pdata->acquisition_time;
+ ts->averaging = pdata->averaging;
+ ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+ ts->median = pdata->median;
+
+ if (pdata->gpio_output)
+ ts->gpio_init = AD7879_GPIO_EN |
+ (pdata->gpio_default ? 0 : AD7879_GPIO_DATA);
+ else
+ ts->gpio_init = AD7879_GPIO_EN | AD7879_GPIODIR;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&bus->dev));
+
+ input_dev->name = "AD7879 Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->dev.parent = &bus->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ pdata->x_min ? : 0,
+ pdata->x_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ pdata->y_min ? : 0,
+ pdata->y_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+ err = ad7879_write(bus, AD7879_REG_CTRL2, AD7879_RESET);
+
+ if (err < 0) {
+ dev_err(&bus->dev, "Failed to write %s\n", input_dev->name);
+ goto err_free_mem;
+ }
+
+ revid = ad7879_read(bus, AD7879_REG_REVID);
+
+ if ((revid & 0xFF) != AD7879_DEVID) {
+ dev_err(&bus->dev, "Failed to probe %s\n", input_dev->name);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ ad7879_setup(ts);
+
+ err = request_irq(bus->irq, ad7879_irq,
+ IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
+ bus->dev.driver->name, ts);
+
+ if (err) {
+ dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
+ goto err_free_mem;
+ }
+
+ err = sysfs_create_group(&bus->dev.kobj, &ad7879_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr;
+
+ dev_info(&bus->dev, "Rev.%d touchscreen, irq %d\n",
+ revid >> 8, bus->irq);
+
+ return 0;
+
+err_remove_attr:
+ sysfs_remove_group(&bus->dev.kobj, &ad7879_attr_group);
+err_free_irq:
+ free_irq(bus->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+
+ return err;
+}
+
+static int __devexit ad7879_destroy(bus_device *bus, struct ad7879 *ts)
+{
+ ad7879_disable(ts);
+ sysfs_remove_group(&ts->bus->dev.kobj, &ad7879_attr_group);
+ free_irq(ts->bus->irq, ts);
+ input_unregister_device(ts->input);
+ dev_dbg(&bus->dev, "unregistered touchscreen\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ad7879_suspend(bus_device *bus, pm_message_t message)
+{
+ struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+ ad7879_disable(ts);
+
+ return 0;
+}
+
+static int ad7879_resume(bus_device *bus)
+{
+ struct ad7879 *ts = dev_get_drvdata(&bus->dev);
+
+ ad7879_enable(ts);
+
+ return 0;
+}
+#else
+#define ad7879_suspend NULL
+#define ad7879_resume NULL
+#endif
+
+#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
+#define MAX_SPI_FREQ_HZ 5000000
+#define AD7879_CMD_MAGIC 0xE000
+#define AD7879_CMD_READ (1 << 10)
+#define AD7879_WRITECMD(reg) (AD7879_CMD_MAGIC | (reg & 0xF))
+#define AD7879_READCMD(reg) (AD7879_CMD_MAGIC | AD7879_CMD_READ | (reg & 0xF))
+
+struct ser_req {
+ u16 command;
+ u16 data;
+ struct spi_message msg;
+ struct spi_transfer xfer[2];
+};
+
+/*
+ * ad7879_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done in ad7879_collect().
+ */
+
+static int ad7879_read(struct spi_device *spi, u8 reg)
+{
+ struct ser_req *req;
+ int status, ret;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) AD7879_READCMD(reg);
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+
+ req->xfer[1].rx_buf = &req->data;
+ req->xfer[1].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+ spi_message_add_tail(&req->xfer[1], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+ ret = status ? : req->data;
+
+ kfree(req);
+
+ return ret;
+}
+
+static int ad7879_write(struct spi_device *spi, u8 reg, u16 val)
+{
+ struct ser_req *req;
+ int status;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) AD7879_WRITECMD(reg);
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+
+ req->data = val;
+ req->xfer[1].tx_buf = &req->data;
+ req->xfer[1].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+ spi_message_add_tail(&req->xfer[1], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+
+ kfree(req);
+
+ return status;
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+ int status = spi_sync(ts->bus, &ts->msg);
+
+ if (status)
+ dev_err(&ts->bus->dev, "spi_sync --> %d\n", status);
+}
+
+static void ad7879_setup_ts_def_msg(struct ad7879 *ts)
+{
+ struct spi_message *m;
+ int i;
+
+ ts->cmd = (u16) AD7879_READCMD(AD7879_REG_XPLUS);
+
+ m = &ts->msg;
+ spi_message_init(m);
+ ts->xfer[0].tx_buf = &ts->cmd;
+ ts->xfer[0].len = 2;
+
+ spi_message_add_tail(&ts->xfer[0], m);
+
+ for (i = 0; i < AD7879_NR_SENSE; i++) {
+ ts->xfer[i + 1].rx_buf = &ts->conversion_data[i];
+ ts->xfer[i + 1].len = 2;
+ spi_message_add_tail(&ts->xfer[i + 1], m);
+ }
+}
+
+static int __devinit ad7879_probe(struct spi_device *spi)
+{
+ struct ad7879 *ts;
+ int error;
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_err(&spi->dev, "SPI CLK %d Hz?\n", spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ dev_set_drvdata(&spi->dev, ts);
+ ts->bus = spi;
+
+ ad7879_setup_ts_def_msg(ts);
+
+ error = ad7879_construct(spi, ts);
+ if (error) {
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(ts);
+ }
+
+ return 0;
+}
+
+static int __devexit ad7879_remove(struct spi_device *spi)
+{
+ struct ad7879 *ts = dev_get_drvdata(&spi->dev);
+
+ ad7879_destroy(spi, ts);
+ dev_set_drvdata(&spi->dev, NULL);
+ kfree(ts);
+
+ return 0;
+}
+
+static struct spi_driver ad7879_driver = {
+ .driver = {
+ .name = "ad7879",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = ad7879_probe,
+ .remove = __devexit_p(ad7879_remove),
+ .suspend = ad7879_suspend,
+ .resume = ad7879_resume,
+};
+
+static int __init ad7879_init(void)
+{
+ return spi_register_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+ spi_unregister_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+
+#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
+
+/* All registers are word-sized.
+ * AD7879 uses a high-byte first convention.
+ */
+static int ad7879_read(struct i2c_client *client, u8 reg)
+{
+ return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int ad7879_write(struct i2c_client *client, u8 reg, u16 val)
+{
+ return i2c_smbus_write_word_data(client, reg, swab16(val));
+}
+
+static void ad7879_collect(struct ad7879 *ts)
+{
+ int i;
+
+ for (i = 0; i < AD7879_NR_SENSE; i++)
+ ts->conversion_data[i] = ad7879_read(ts->bus,
+ AD7879_REG_XPLUS + i);
+}
+
+static int __devinit ad7879_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ad7879 *ts;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_WORD_DATA)) {
+ dev_err(&client->dev, "SMBUS Word Data not Supported\n");
+ return -EIO;
+ }
+
+ ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, ts);
+ ts->bus = client;
+
+ error = ad7879_construct(client, ts);
+ if (error) {
+ i2c_set_clientdata(client, NULL);
+ kfree(ts);
+ }
+
+ return 0;
+}
+
+static int __devexit ad7879_remove(struct i2c_client *client)
+{
+ struct ad7879 *ts = dev_get_drvdata(&client->dev);
+
+ ad7879_destroy(client, ts);
+ i2c_set_clientdata(client, NULL);
+ kfree(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id ad7879_id[] = {
+ { "ad7879", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ad7879_id);
+
+static struct i2c_driver ad7879_driver = {
+ .driver = {
+ .name = "ad7879",
+ .owner = THIS_MODULE,
+ },
+ .probe = ad7879_probe,
+ .remove = __devexit_p(ad7879_remove),
+ .suspend = ad7879_suspend,
+ .resume = ad7879_resume,
+ .id_table = ad7879_id,
+};
+
+static int __init ad7879_init(void)
+{
+ return i2c_add_driver(&ad7879_driver);
+}
+module_init(ad7879_init);
+
+static void __exit ad7879_exit(void)
+{
+ i2c_del_driver(&ad7879_driver);
+}
+module_exit(ad7879_exit);
+#endif
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index 1d11e2b..dfa6a84 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -162,6 +162,7 @@
input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
input_sync(wm->input_dev);
reads++;
} while (reads < cinfo[sp_idx].reads);
@@ -245,7 +246,7 @@
if (enable)
enable_irq(wm->pen_irq);
else
- disable_irq(wm->pen_irq);
+ disable_irq_nosync(wm->pen_irq);
}
static struct wm97xx_mach_ops mainstone_mach_ops = {
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 5498662..e868264 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -151,12 +151,14 @@
input_report_abs(idev, ABS_X, x);
input_report_abs(idev, ABS_Y, y);
input_report_abs(idev, ABS_PRESSURE, pressure);
+ input_report_key(idev, BTN_TOUCH, 1);
input_sync(idev);
}
static void ucb1400_ts_event_release(struct input_dev *idev)
{
input_report_abs(idev, ABS_PRESSURE, 0);
+ input_report_key(idev, BTN_TOUCH, 0);
input_sync(idev);
}
@@ -377,7 +379,8 @@
ucb->ts_idev->id.product = ucb->id;
ucb->ts_idev->open = ucb1400_ts_open;
ucb->ts_idev->close = ucb1400_ts_close;
- ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS);
+ ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
ucb1400_adc_enable(ucb->ac97);
x_res = ucb1400_ts_read_xres(ucb);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index d15aa11..cec480b 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -409,6 +409,7 @@
wm->pen_is_down = 0;
dev_dbg(wm->dev, "pen up\n");
input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
+ input_report_key(wm->input_dev, BTN_TOUCH, 0);
input_sync(wm->input_dev);
} else if (!(rc & RC_AGAIN)) {
/* We need high frequency updates only while
@@ -433,6 +434,7 @@
input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, 1);
input_sync(wm->input_dev);
wm->pen_is_down = 1;
wm->ts_reader_interval = wm->ts_reader_min_interval;
@@ -628,18 +630,21 @@
wm->input_dev->phys = "wm97xx";
wm->input_dev->open = wm97xx_ts_input_open;
wm->input_dev->close = wm97xx_ts_input_close;
- set_bit(EV_ABS, wm->input_dev->evbit);
- set_bit(ABS_X, wm->input_dev->absbit);
- set_bit(ABS_Y, wm->input_dev->absbit);
- set_bit(ABS_PRESSURE, wm->input_dev->absbit);
+
+ __set_bit(EV_ABS, wm->input_dev->evbit);
+ __set_bit(EV_KEY, wm->input_dev->evbit);
+ __set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
abs_x[2], 0);
input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
abs_y[2], 0);
input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
abs_p[2], 0);
+
input_set_drvdata(wm->input_dev, wm);
wm->input_dev->dev.parent = dev;
+
ret = input_register_device(wm->input_dev);
if (ret < 0)
goto dev_alloc_err;
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
new file mode 100644
index 0000000..41e4359
--- /dev/null
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -0,0 +1,240 @@
+/*
+ * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver
+ *
+ * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Notes:
+ * This is a wm97xx extended touch driver supporting interrupt driven
+ * and continuous operation on Marvell Zylonite development systems
+ * (which have a WM9713 on board).
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/wm97xx.h>
+
+#include <mach/hardware.h>
+#include <mach/mfp.h>
+#include <mach/regs-ac97.h>
+
+struct continuous {
+ u16 id; /* codec id */
+ u8 code; /* continuous code */
+ u8 reads; /* number of coord reads per read cycle */
+ u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+ { WM9713_ID2, 0, WM_READS(94), 94 },
+ { WM9713_ID2, 1, WM_READS(120), 120 },
+ { WM9713_ID2, 2, WM_READS(154), 154 },
+ { WM9713_ID2, 3, WM_READS(188), 188 },
+};
+
+/* continuous speed index */
+static int sp_idx;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO machines */
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+ int i;
+
+ msleep(1);
+
+ for (i = 0; i < 16; i++)
+ MODR;
+}
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+ u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+ int reads = 0;
+ static u16 last, tries;
+
+ /* When the AC97 queue has been drained we need to allow time
+ * to buffer up samples otherwise we end up spinning polling
+ * for samples. The controller can't have a suitably low
+ * threashold set to use the notifications it gives.
+ */
+ msleep(1);
+
+ if (tries > 5) {
+ tries = 0;
+ return RC_PENUP;
+ }
+
+ x = MODR;
+ if (x == last) {
+ tries++;
+ return RC_AGAIN;
+ }
+ last = x;
+ do {
+ if (reads)
+ x = MODR;
+ y = MODR;
+ if (pressure)
+ p = MODR;
+
+ /* are samples valid */
+ if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
+ (y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
+ (p & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_PRES)
+ goto up;
+
+ /* coordinate is good */
+ tries = 0;
+ input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+ input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+ input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
+ input_sync(wm->input_dev);
+ reads++;
+ } while (reads < cinfo[sp_idx].reads);
+up:
+ return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+ int idx;
+
+ /* check we have a codec */
+ if (wm->ac97 == NULL)
+ return -ENODEV;
+
+ /* Go you big red fire engine */
+ for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+ if (wm->id != cinfo[idx].id)
+ continue;
+ sp_idx = idx;
+ if (cont_rate <= cinfo[idx].speed)
+ break;
+ }
+ wm->acc_rate = cinfo[sp_idx].code;
+ wm->acc_slot = ac97_touch_slot;
+ dev_info(wm->dev,
+ "zylonite accelerated touchscreen driver, %d samples/sec\n",
+ cinfo[sp_idx].speed);
+
+ return 0;
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+ if (enable)
+ enable_irq(wm->pen_irq);
+ else
+ disable_irq_nosync(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops zylonite_mach_ops = {
+ .acc_enabled = 1,
+ .acc_pen_up = wm97xx_acc_pen_up,
+ .acc_pen_down = wm97xx_acc_pen_down,
+ .acc_startup = wm97xx_acc_startup,
+ .irq_enable = wm97xx_irq_enable,
+ .irq_gpio = WM97XX_GPIO_2,
+};
+
+static int zylonite_wm97xx_probe(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+ int gpio_touch_irq;
+
+ if (cpu_is_pxa320())
+ gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
+ else
+ gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
+
+ wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
+ set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+
+ wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_STICKY,
+ WM97XX_GPIO_WAKE);
+ wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_NOTSTICKY,
+ WM97XX_GPIO_NOWAKE);
+
+ return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
+}
+
+static int zylonite_wm97xx_remove(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+
+ wm97xx_unregister_mach_ops(wm);
+
+ return 0;
+}
+
+static struct platform_driver zylonite_wm97xx_driver = {
+ .probe = zylonite_wm97xx_probe,
+ .remove = zylonite_wm97xx_remove,
+ .driver = {
+ .name = "wm97xx-touch",
+ },
+};
+
+static int __init zylonite_wm97xx_init(void)
+{
+ return platform_driver_register(&zylonite_wm97xx_driver);
+}
+
+static void __exit zylonite_wm97xx_exit(void)
+{
+ platform_driver_unregister(&zylonite_wm97xx_driver);
+}
+
+module_init(zylonite_wm97xx_init);
+module_exit(zylonite_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 102ef4a..d210905 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -82,7 +82,7 @@
if (!gpio_is_valid(template->gpio)) {
printk(KERN_INFO "Skipping unavilable LED gpio %d (%s)\n",
template->gpio, template->name);
- return;
+ return 0;
}
ret = gpio_request(template->gpio, template->name);
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index d184dfa..db39f4a 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -278,7 +278,7 @@
* We only use page mode writes; the alternative is sloooow. This routine
* writes at most one page.
*/
-static ssize_t at24_eeprom_write(struct at24_data *at24, char *buf,
+static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf,
unsigned offset, size_t count)
{
struct i2c_client *client;
@@ -347,8 +347,8 @@
return -ETIMEDOUT;
}
-static ssize_t at24_write(struct at24_data *at24,
- char *buf, loff_t off, size_t count)
+static ssize_t at24_write(struct at24_data *at24, const char *buf, loff_t off,
+ size_t count)
{
ssize_t retval = 0;
@@ -406,7 +406,7 @@
return at24_read(at24, buf, offset, count);
}
-static ssize_t at24_macc_write(struct memory_accessor *macc, char *buf,
+static ssize_t at24_macc_write(struct memory_accessor *macc, const char *buf,
off_t offset, size_t count)
{
struct at24_data *at24 = container_of(macc, struct at24_data, macc);
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 6bc0dac..b34cb5f 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -140,7 +140,8 @@
static ssize_t
-at25_ee_write(struct at25_data *at25, char *buf, loff_t off, size_t count)
+at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
+ size_t count)
{
ssize_t status = 0;
unsigned written = 0;
@@ -276,7 +277,7 @@
return at25_ee_read(at25, buf, offset, count);
}
-static ssize_t at25_mem_write(struct memory_accessor *mem, char *buf,
+static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
off_t offset, size_t count)
{
struct at25_data *at25 = container_of(mem, struct at25_data, mem);
diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
index 114444c..b94d5f7 100644
--- a/drivers/misc/sgi-xp/xpc.h
+++ b/drivers/misc/sgi-xp/xpc.h
@@ -90,18 +90,21 @@
short max_npartitions; /* value of XPC_MAX_PARTITIONS */
u8 version;
u8 pad1[3]; /* align to next u64 in 1st 64-byte cacheline */
- union {
- unsigned long vars_pa; /* phys address of struct xpc_vars */
- unsigned long activate_gru_mq_desc_gpa; /* phys addr of */
- /* activate mq's */
- /* gru mq descriptor */
- } sn;
unsigned long ts_jiffies; /* timestamp when rsvd pg was setup by XPC */
- u64 pad2[10]; /* align to last u64 in 2nd 64-byte cacheline */
+ union {
+ struct {
+ unsigned long vars_pa; /* phys addr */
+ } sn2;
+ struct {
+ unsigned long heartbeat_gpa; /* phys addr */
+ unsigned long activate_gru_mq_desc_gpa; /* phys addr */
+ } uv;
+ } sn;
+ u64 pad2[9]; /* align to last u64 in 2nd 64-byte cacheline */
u64 SAL_nasids_size; /* SAL: size of each nasid mask in bytes */
};
-#define XPC_RP_VERSION _XPC_VERSION(2, 0) /* version 2.0 of the reserved page */
+#define XPC_RP_VERSION _XPC_VERSION(3, 0) /* version 3.0 of the reserved page */
/*
* Define the structures by which XPC variables can be exported to other
@@ -182,6 +185,17 @@
(XPC_RP_MACH_NASIDS(_rp) + \
xpc_nasid_mask_nlongs))
+
+/*
+ * The following structure describes the partition's heartbeat info which
+ * will be periodically read by other partitions to determine whether this
+ * XPC is still 'alive'.
+ */
+struct xpc_heartbeat_uv {
+ unsigned long value;
+ unsigned long offline; /* if 0, heartbeat should be changing */
+};
+
/*
* Info pertinent to a GRU message queue using a watch list for irq generation.
*/
@@ -198,7 +212,7 @@
/*
* The activate_mq is used to send/receive GRU messages that affect XPC's
- * heartbeat, partition active state, and channel state. This is UV only.
+ * partition active state and channel state. This is uv only.
*/
struct xpc_activate_mq_msghdr_uv {
unsigned int gru_msg_hdr; /* FOR GRU INTERNAL USE ONLY */
@@ -210,33 +224,27 @@
/* activate_mq defined message types */
#define XPC_ACTIVATE_MQ_MSG_SYNC_ACT_STATE_UV 0
-#define XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV 1
-#define XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV 2
-#define XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV 3
-#define XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV 4
-#define XPC_ACTIVATE_MQ_MSG_DEACTIVATE_REQ_UV 5
+#define XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV 1
+#define XPC_ACTIVATE_MQ_MSG_DEACTIVATE_REQ_UV 2
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREQUEST_UV 6
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREPLY_UV 7
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREQUEST_UV 8
-#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREPLY_UV 9
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREQUEST_UV 3
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_CLOSEREPLY_UV 4
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREQUEST_UV 5
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREPLY_UV 6
+#define XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV 7
-#define XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV 10
-#define XPC_ACTIVATE_MQ_MSG_MARK_DISENGAGED_UV 11
+#define XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV 8
+#define XPC_ACTIVATE_MQ_MSG_MARK_DISENGAGED_UV 9
struct xpc_activate_mq_msg_uv {
struct xpc_activate_mq_msghdr_uv hdr;
};
-struct xpc_activate_mq_msg_heartbeat_req_uv {
- struct xpc_activate_mq_msghdr_uv hdr;
- u64 heartbeat;
-};
-
struct xpc_activate_mq_msg_activate_req_uv {
struct xpc_activate_mq_msghdr_uv hdr;
unsigned long rp_gpa;
+ unsigned long heartbeat_gpa;
unsigned long activate_gru_mq_desc_gpa;
};
@@ -271,6 +279,11 @@
unsigned long notify_gru_mq_desc_gpa;
};
+struct xpc_activate_mq_msg_chctl_opencomplete_uv {
+ struct xpc_activate_mq_msghdr_uv hdr;
+ short ch_number;
+};
+
/*
* Functions registered by add_timer() or called by kernel_thread() only
* allow for a single 64-bit argument. The following macros can be used to
@@ -576,30 +589,32 @@
#define XPC_C_WASCONNECTED 0x00000001 /* channel was connected */
-#define XPC_C_ROPENREPLY 0x00000002 /* remote open channel reply */
-#define XPC_C_OPENREPLY 0x00000004 /* local open channel reply */
-#define XPC_C_ROPENREQUEST 0x00000008 /* remote open channel request */
-#define XPC_C_OPENREQUEST 0x00000010 /* local open channel request */
+#define XPC_C_ROPENCOMPLETE 0x00000002 /* remote open channel complete */
+#define XPC_C_OPENCOMPLETE 0x00000004 /* local open channel complete */
+#define XPC_C_ROPENREPLY 0x00000008 /* remote open channel reply */
+#define XPC_C_OPENREPLY 0x00000010 /* local open channel reply */
+#define XPC_C_ROPENREQUEST 0x00000020 /* remote open channel request */
+#define XPC_C_OPENREQUEST 0x00000040 /* local open channel request */
-#define XPC_C_SETUP 0x00000020 /* channel's msgqueues are alloc'd */
-#define XPC_C_CONNECTEDCALLOUT 0x00000040 /* connected callout initiated */
+#define XPC_C_SETUP 0x00000080 /* channel's msgqueues are alloc'd */
+#define XPC_C_CONNECTEDCALLOUT 0x00000100 /* connected callout initiated */
#define XPC_C_CONNECTEDCALLOUT_MADE \
- 0x00000080 /* connected callout completed */
-#define XPC_C_CONNECTED 0x00000100 /* local channel is connected */
-#define XPC_C_CONNECTING 0x00000200 /* channel is being connected */
+ 0x00000200 /* connected callout completed */
+#define XPC_C_CONNECTED 0x00000400 /* local channel is connected */
+#define XPC_C_CONNECTING 0x00000800 /* channel is being connected */
-#define XPC_C_RCLOSEREPLY 0x00000400 /* remote close channel reply */
-#define XPC_C_CLOSEREPLY 0x00000800 /* local close channel reply */
-#define XPC_C_RCLOSEREQUEST 0x00001000 /* remote close channel request */
-#define XPC_C_CLOSEREQUEST 0x00002000 /* local close channel request */
+#define XPC_C_RCLOSEREPLY 0x00001000 /* remote close channel reply */
+#define XPC_C_CLOSEREPLY 0x00002000 /* local close channel reply */
+#define XPC_C_RCLOSEREQUEST 0x00004000 /* remote close channel request */
+#define XPC_C_CLOSEREQUEST 0x00008000 /* local close channel request */
-#define XPC_C_DISCONNECTED 0x00004000 /* channel is disconnected */
-#define XPC_C_DISCONNECTING 0x00008000 /* channel is being disconnected */
+#define XPC_C_DISCONNECTED 0x00010000 /* channel is disconnected */
+#define XPC_C_DISCONNECTING 0x00020000 /* channel is being disconnected */
#define XPC_C_DISCONNECTINGCALLOUT \
- 0x00010000 /* disconnecting callout initiated */
+ 0x00040000 /* disconnecting callout initiated */
#define XPC_C_DISCONNECTINGCALLOUT_MADE \
- 0x00020000 /* disconnecting callout completed */
-#define XPC_C_WDISCONNECT 0x00040000 /* waiting for channel disconnect */
+ 0x00080000 /* disconnecting callout completed */
+#define XPC_C_WDISCONNECT 0x00100000 /* waiting for channel disconnect */
/*
* The channel control flags (chctl) union consists of a 64-bit variable which
@@ -618,11 +633,13 @@
#define XPC_CHCTL_CLOSEREPLY 0x02
#define XPC_CHCTL_OPENREQUEST 0x04
#define XPC_CHCTL_OPENREPLY 0x08
-#define XPC_CHCTL_MSGREQUEST 0x10
+#define XPC_CHCTL_OPENCOMPLETE 0x10
+#define XPC_CHCTL_MSGREQUEST 0x20
#define XPC_OPENCLOSE_CHCTL_FLAGS \
(XPC_CHCTL_CLOSEREQUEST | XPC_CHCTL_CLOSEREPLY | \
- XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY)
+ XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY | \
+ XPC_CHCTL_OPENCOMPLETE)
#define XPC_MSG_CHCTL_FLAGS XPC_CHCTL_MSGREQUEST
static inline int
@@ -687,6 +704,9 @@
};
struct xpc_partition_uv {
+ unsigned long heartbeat_gpa; /* phys addr of partition's heartbeat */
+ struct xpc_heartbeat_uv cached_heartbeat; /* cached copy of */
+ /* partition's heartbeat */
unsigned long activate_gru_mq_desc_gpa; /* phys addr of parititon's */
/* activate mq's gru mq */
/* descriptor */
@@ -698,14 +718,12 @@
u8 remote_act_state; /* remote partition's act_state */
u8 act_state_req; /* act_state request from remote partition */
enum xp_retval reason; /* reason for deactivate act_state request */
- u64 heartbeat; /* incremented by remote partition */
};
/* struct xpc_partition_uv flags */
-#define XPC_P_HEARTBEAT_OFFLINE_UV 0x00000001
+#define XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV 0x00000001
#define XPC_P_ENGAGED_UV 0x00000002
-#define XPC_P_CACHED_ACTIVATE_GRU_MQ_DESC_UV 0x00000004
/* struct xpc_partition_uv act_state change requests */
@@ -762,6 +780,62 @@
} ____cacheline_aligned;
+struct xpc_arch_operations {
+ int (*setup_partitions) (void);
+ void (*teardown_partitions) (void);
+ void (*process_activate_IRQ_rcvd) (void);
+ enum xp_retval (*get_partition_rsvd_page_pa)
+ (void *, u64 *, unsigned long *, size_t *);
+ int (*setup_rsvd_page) (struct xpc_rsvd_page *);
+
+ void (*allow_hb) (short);
+ void (*disallow_hb) (short);
+ void (*disallow_all_hbs) (void);
+ void (*increment_heartbeat) (void);
+ void (*offline_heartbeat) (void);
+ void (*online_heartbeat) (void);
+ void (*heartbeat_init) (void);
+ void (*heartbeat_exit) (void);
+ enum xp_retval (*get_remote_heartbeat) (struct xpc_partition *);
+
+ void (*request_partition_activation) (struct xpc_rsvd_page *,
+ unsigned long, int);
+ void (*request_partition_reactivation) (struct xpc_partition *);
+ void (*request_partition_deactivation) (struct xpc_partition *);
+ void (*cancel_partition_deactivation_request) (struct xpc_partition *);
+ enum xp_retval (*setup_ch_structures) (struct xpc_partition *);
+ void (*teardown_ch_structures) (struct xpc_partition *);
+
+ enum xp_retval (*make_first_contact) (struct xpc_partition *);
+
+ u64 (*get_chctl_all_flags) (struct xpc_partition *);
+ void (*send_chctl_closerequest) (struct xpc_channel *, unsigned long *);
+ void (*send_chctl_closereply) (struct xpc_channel *, unsigned long *);
+ void (*send_chctl_openrequest) (struct xpc_channel *, unsigned long *);
+ void (*send_chctl_openreply) (struct xpc_channel *, unsigned long *);
+ void (*send_chctl_opencomplete) (struct xpc_channel *, unsigned long *);
+ void (*process_msg_chctl_flags) (struct xpc_partition *, int);
+
+ enum xp_retval (*save_remote_msgqueue_pa) (struct xpc_channel *,
+ unsigned long);
+
+ enum xp_retval (*setup_msg_structures) (struct xpc_channel *);
+ void (*teardown_msg_structures) (struct xpc_channel *);
+
+ void (*indicate_partition_engaged) (struct xpc_partition *);
+ void (*indicate_partition_disengaged) (struct xpc_partition *);
+ void (*assume_partition_disengaged) (short);
+ int (*partition_engaged) (short);
+ int (*any_partition_engaged) (void);
+
+ int (*n_of_deliverable_payloads) (struct xpc_channel *);
+ enum xp_retval (*send_payload) (struct xpc_channel *, u32, void *,
+ u16, u8, xpc_notify_func, void *);
+ void *(*get_deliverable_payload) (struct xpc_channel *);
+ void (*received_payload) (struct xpc_channel *, void *);
+ void (*notify_senders_of_disconnect) (struct xpc_channel *);
+};
+
/* struct xpc_partition act_state values (for XPC HB) */
#define XPC_P_AS_INACTIVE 0x00 /* partition is not active */
@@ -802,67 +876,17 @@
/* found in xpc_main.c */
extern struct device *xpc_part;
extern struct device *xpc_chan;
+extern struct xpc_arch_operations xpc_arch_ops;
extern int xpc_disengage_timelimit;
extern int xpc_disengage_timedout;
extern int xpc_activate_IRQ_rcvd;
extern spinlock_t xpc_activate_IRQ_rcvd_lock;
extern wait_queue_head_t xpc_activate_IRQ_wq;
-extern void *xpc_heartbeating_to_mask;
extern void *xpc_kzalloc_cacheline_aligned(size_t, gfp_t, void **);
extern void xpc_activate_partition(struct xpc_partition *);
extern void xpc_activate_kthreads(struct xpc_channel *, int);
extern void xpc_create_kthreads(struct xpc_channel *, int, int);
extern void xpc_disconnect_wait(int);
-extern int (*xpc_setup_partitions_sn) (void);
-extern void (*xpc_teardown_partitions_sn) (void);
-extern enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *, u64 *,
- unsigned long *,
- size_t *);
-extern int (*xpc_setup_rsvd_page_sn) (struct xpc_rsvd_page *);
-extern void (*xpc_heartbeat_init) (void);
-extern void (*xpc_heartbeat_exit) (void);
-extern void (*xpc_increment_heartbeat) (void);
-extern void (*xpc_offline_heartbeat) (void);
-extern void (*xpc_online_heartbeat) (void);
-extern enum xp_retval (*xpc_get_remote_heartbeat) (struct xpc_partition *);
-extern enum xp_retval (*xpc_make_first_contact) (struct xpc_partition *);
-extern u64 (*xpc_get_chctl_all_flags) (struct xpc_partition *);
-extern enum xp_retval (*xpc_setup_msg_structures) (struct xpc_channel *);
-extern void (*xpc_teardown_msg_structures) (struct xpc_channel *);
-extern void (*xpc_notify_senders_of_disconnect) (struct xpc_channel *);
-extern void (*xpc_process_msg_chctl_flags) (struct xpc_partition *, int);
-extern int (*xpc_n_of_deliverable_payloads) (struct xpc_channel *);
-extern void *(*xpc_get_deliverable_payload) (struct xpc_channel *);
-extern void (*xpc_request_partition_activation) (struct xpc_rsvd_page *,
- unsigned long, int);
-extern void (*xpc_request_partition_reactivation) (struct xpc_partition *);
-extern void (*xpc_request_partition_deactivation) (struct xpc_partition *);
-extern void (*xpc_cancel_partition_deactivation_request) (
- struct xpc_partition *);
-extern void (*xpc_process_activate_IRQ_rcvd) (void);
-extern enum xp_retval (*xpc_setup_ch_structures_sn) (struct xpc_partition *);
-extern void (*xpc_teardown_ch_structures_sn) (struct xpc_partition *);
-
-extern void (*xpc_indicate_partition_engaged) (struct xpc_partition *);
-extern int (*xpc_partition_engaged) (short);
-extern int (*xpc_any_partition_engaged) (void);
-extern void (*xpc_indicate_partition_disengaged) (struct xpc_partition *);
-extern void (*xpc_assume_partition_disengaged) (short);
-
-extern void (*xpc_send_chctl_closerequest) (struct xpc_channel *,
- unsigned long *);
-extern void (*xpc_send_chctl_closereply) (struct xpc_channel *,
- unsigned long *);
-extern void (*xpc_send_chctl_openrequest) (struct xpc_channel *,
- unsigned long *);
-extern void (*xpc_send_chctl_openreply) (struct xpc_channel *, unsigned long *);
-
-extern enum xp_retval (*xpc_save_remote_msgqueue_pa) (struct xpc_channel *,
- unsigned long);
-
-extern enum xp_retval (*xpc_send_payload) (struct xpc_channel *, u32, void *,
- u16, u8, xpc_notify_func, void *);
-extern void (*xpc_received_payload) (struct xpc_channel *, void *);
/* found in xpc_sn2.c */
extern int xpc_init_sn2(void);
@@ -909,40 +933,6 @@
extern void xpc_disconnect_callout(struct xpc_channel *, enum xp_retval);
extern void xpc_partition_going_down(struct xpc_partition *, enum xp_retval);
-static inline int
-xpc_hb_allowed(short partid, void *heartbeating_to_mask)
-{
- return test_bit(partid, heartbeating_to_mask);
-}
-
-static inline int
-xpc_any_hbs_allowed(void)
-{
- DBUG_ON(xpc_heartbeating_to_mask == NULL);
- return !bitmap_empty(xpc_heartbeating_to_mask, xp_max_npartitions);
-}
-
-static inline void
-xpc_allow_hb(short partid)
-{
- DBUG_ON(xpc_heartbeating_to_mask == NULL);
- set_bit(partid, xpc_heartbeating_to_mask);
-}
-
-static inline void
-xpc_disallow_hb(short partid)
-{
- DBUG_ON(xpc_heartbeating_to_mask == NULL);
- clear_bit(partid, xpc_heartbeating_to_mask);
-}
-
-static inline void
-xpc_disallow_all_hbs(void)
-{
- DBUG_ON(xpc_heartbeating_to_mask == NULL);
- bitmap_zero(xpc_heartbeating_to_mask, xp_max_npartitions);
-}
-
static inline void
xpc_wakeup_channel_mgr(struct xpc_partition *part)
{
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 99a2534..652593f 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2009 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
@@ -39,34 +39,38 @@
if (!(ch->flags & XPC_C_SETUP)) {
spin_unlock_irqrestore(&ch->lock, *irq_flags);
- ret = xpc_setup_msg_structures(ch);
+ ret = xpc_arch_ops.setup_msg_structures(ch);
spin_lock_irqsave(&ch->lock, *irq_flags);
if (ret != xpSuccess)
XPC_DISCONNECT_CHANNEL(ch, ret, irq_flags);
+ else
+ ch->flags |= XPC_C_SETUP;
- ch->flags |= XPC_C_SETUP;
-
- if (ch->flags & (XPC_C_CONNECTED | XPC_C_DISCONNECTING))
+ if (ch->flags & XPC_C_DISCONNECTING)
return;
}
if (!(ch->flags & XPC_C_OPENREPLY)) {
ch->flags |= XPC_C_OPENREPLY;
- xpc_send_chctl_openreply(ch, irq_flags);
+ xpc_arch_ops.send_chctl_openreply(ch, irq_flags);
}
if (!(ch->flags & XPC_C_ROPENREPLY))
return;
- ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP); /* clear all else */
+ if (!(ch->flags & XPC_C_OPENCOMPLETE)) {
+ ch->flags |= (XPC_C_OPENCOMPLETE | XPC_C_CONNECTED);
+ xpc_arch_ops.send_chctl_opencomplete(ch, irq_flags);
+ }
+
+ if (!(ch->flags & XPC_C_ROPENCOMPLETE))
+ return;
dev_info(xpc_chan, "channel %d to partition %d connected\n",
ch->number, ch->partid);
- spin_unlock_irqrestore(&ch->lock, *irq_flags);
- xpc_create_kthreads(ch, 1, 0);
- spin_lock_irqsave(&ch->lock, *irq_flags);
+ ch->flags = (XPC_C_CONNECTED | XPC_C_SETUP); /* clear all else */
}
/*
@@ -96,7 +100,7 @@
if (part->act_state == XPC_P_AS_DEACTIVATING) {
/* can't proceed until the other side disengages from us */
- if (xpc_partition_engaged(ch->partid))
+ if (xpc_arch_ops.partition_engaged(ch->partid))
return;
} else {
@@ -108,7 +112,7 @@
if (!(ch->flags & XPC_C_CLOSEREPLY)) {
ch->flags |= XPC_C_CLOSEREPLY;
- xpc_send_chctl_closereply(ch, irq_flags);
+ xpc_arch_ops.send_chctl_closereply(ch, irq_flags);
}
if (!(ch->flags & XPC_C_RCLOSEREPLY))
@@ -118,7 +122,7 @@
/* wake those waiting for notify completion */
if (atomic_read(&ch->n_to_notify) > 0) {
/* we do callout while holding ch->lock, callout can't block */
- xpc_notify_senders_of_disconnect(ch);
+ xpc_arch_ops.notify_senders_of_disconnect(ch);
}
/* both sides are disconnected now */
@@ -132,7 +136,7 @@
DBUG_ON(atomic_read(&ch->n_to_notify) != 0);
/* it's now safe to free the channel's message queues */
- xpc_teardown_msg_structures(ch);
+ xpc_arch_ops.teardown_msg_structures(ch);
ch->func = NULL;
ch->key = NULL;
@@ -144,8 +148,9 @@
/*
* Mark the channel disconnected and clear all other flags, including
- * XPC_C_SETUP (because of call to xpc_teardown_msg_structures()) but
- * not including XPC_C_WDISCONNECT (if it was set).
+ * XPC_C_SETUP (because of call to
+ * xpc_arch_ops.teardown_msg_structures()) but not including
+ * XPC_C_WDISCONNECT (if it was set).
*/
ch->flags = (XPC_C_DISCONNECTED | (ch->flags & XPC_C_WDISCONNECT));
@@ -184,6 +189,7 @@
struct xpc_channel *ch = &part->channels[ch_number];
enum xp_retval reason;
enum xp_retval ret;
+ int create_kthread = 0;
spin_lock_irqsave(&ch->lock, irq_flags);
@@ -196,8 +202,7 @@
* has had a chance to see that the channel is disconnected.
*/
ch->delayed_chctl_flags |= chctl_flags;
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
if (chctl_flags & XPC_CHCTL_CLOSEREQUEST) {
@@ -239,8 +244,7 @@
XPC_CHCTL_CLOSEREQUEST;
spin_unlock(&part->chctl_lock);
}
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
XPC_SET_REASON(ch, 0, 0);
@@ -250,7 +254,8 @@
ch->flags |= (XPC_C_CONNECTING | XPC_C_ROPENREQUEST);
}
- chctl_flags &= ~(XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY);
+ chctl_flags &= ~(XPC_CHCTL_OPENREQUEST | XPC_CHCTL_OPENREPLY |
+ XPC_CHCTL_OPENCOMPLETE);
/*
* The meaningful CLOSEREQUEST connection state fields are:
@@ -269,8 +274,7 @@
XPC_DISCONNECT_CHANNEL(ch, reason, &irq_flags);
DBUG_ON(chctl_flags & XPC_CHCTL_CLOSEREPLY);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
xpc_process_disconnect(ch, &irq_flags);
@@ -283,8 +287,7 @@
if (ch->flags & XPC_C_DISCONNECTED) {
DBUG_ON(part->act_state != XPC_P_AS_DEACTIVATING);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
DBUG_ON(!(ch->flags & XPC_C_CLOSEREQUEST));
@@ -299,8 +302,7 @@
XPC_CHCTL_CLOSEREPLY;
spin_unlock(&part->chctl_lock);
}
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
ch->flags |= XPC_C_RCLOSEREPLY;
@@ -320,14 +322,12 @@
if (part->act_state == XPC_P_AS_DEACTIVATING ||
(ch->flags & XPC_C_ROPENREQUEST)) {
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_WDISCONNECT)) {
ch->delayed_chctl_flags |= XPC_CHCTL_OPENREQUEST;
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
DBUG_ON(!(ch->flags & (XPC_C_DISCONNECTED |
XPC_C_OPENREQUEST)));
@@ -341,8 +341,7 @@
*/
if (args->entry_size == 0 || args->local_nentries == 0) {
/* assume OPENREQUEST was delayed by mistake */
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
ch->flags |= (XPC_C_ROPENREQUEST | XPC_C_CONNECTING);
@@ -352,8 +351,7 @@
if (args->entry_size != ch->entry_size) {
XPC_DISCONNECT_CHANNEL(ch, xpUnequalMsgSizes,
&irq_flags);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
} else {
ch->entry_size = args->entry_size;
@@ -375,15 +373,13 @@
args->local_msgqueue_pa, args->local_nentries,
args->remote_nentries, ch->partid, ch->number);
- if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED)) {
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
- }
+ if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED))
+ goto out;
+
if (!(ch->flags & XPC_C_OPENREQUEST)) {
XPC_DISCONNECT_CHANNEL(ch, xpOpenCloseError,
&irq_flags);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
DBUG_ON(!(ch->flags & XPC_C_ROPENREQUEST));
@@ -400,11 +396,11 @@
DBUG_ON(args->local_nentries == 0);
DBUG_ON(args->remote_nentries == 0);
- ret = xpc_save_remote_msgqueue_pa(ch, args->local_msgqueue_pa);
+ ret = xpc_arch_ops.save_remote_msgqueue_pa(ch,
+ args->local_msgqueue_pa);
if (ret != xpSuccess) {
XPC_DISCONNECT_CHANNEL(ch, ret, &irq_flags);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
- return;
+ goto out;
}
ch->flags |= XPC_C_ROPENREPLY;
@@ -430,7 +426,36 @@
xpc_process_connect(ch, &irq_flags);
}
+ if (chctl_flags & XPC_CHCTL_OPENCOMPLETE) {
+
+ dev_dbg(xpc_chan, "XPC_CHCTL_OPENCOMPLETE received from "
+ "partid=%d, channel=%d\n", ch->partid, ch->number);
+
+ if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED))
+ goto out;
+
+ if (!(ch->flags & XPC_C_OPENREQUEST) ||
+ !(ch->flags & XPC_C_OPENREPLY)) {
+ XPC_DISCONNECT_CHANNEL(ch, xpOpenCloseError,
+ &irq_flags);
+ goto out;
+ }
+
+ DBUG_ON(!(ch->flags & XPC_C_ROPENREQUEST));
+ DBUG_ON(!(ch->flags & XPC_C_ROPENREPLY));
+ DBUG_ON(!(ch->flags & XPC_C_CONNECTED));
+
+ ch->flags |= XPC_C_ROPENCOMPLETE;
+
+ xpc_process_connect(ch, &irq_flags);
+ create_kthread = 1;
+ }
+
+out:
spin_unlock_irqrestore(&ch->lock, irq_flags);
+
+ if (create_kthread)
+ xpc_create_kthreads(ch, 1, 0);
}
/*
@@ -508,7 +533,7 @@
/* initiate the connection */
ch->flags |= (XPC_C_OPENREQUEST | XPC_C_CONNECTING);
- xpc_send_chctl_openrequest(ch, &irq_flags);
+ xpc_arch_ops.send_chctl_openrequest(ch, &irq_flags);
xpc_process_connect(ch, &irq_flags);
@@ -526,7 +551,7 @@
int ch_number;
u32 ch_flags;
- chctl.all_flags = xpc_get_chctl_all_flags(part);
+ chctl.all_flags = xpc_arch_ops.get_chctl_all_flags(part);
/*
* Initiate channel connections for registered channels.
@@ -564,10 +589,6 @@
if (!(ch_flags & XPC_C_OPENREQUEST)) {
DBUG_ON(ch_flags & XPC_C_SETUP);
(void)xpc_connect_channel(ch);
- } else {
- spin_lock_irqsave(&ch->lock, irq_flags);
- xpc_process_connect(ch, &irq_flags);
- spin_unlock_irqrestore(&ch->lock, irq_flags);
}
continue;
}
@@ -579,7 +600,7 @@
*/
if (chctl.flags[ch_number] & XPC_MSG_CHCTL_FLAGS)
- xpc_process_msg_chctl_flags(part, ch_number);
+ xpc_arch_ops.process_msg_chctl_flags(part, ch_number);
}
}
@@ -755,7 +776,7 @@
XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
XPC_C_CONNECTING | XPC_C_CONNECTED);
- xpc_send_chctl_closerequest(ch, irq_flags);
+ xpc_arch_ops.send_chctl_closerequest(ch, irq_flags);
if (channel_was_connected)
ch->flags |= XPC_C_WASCONNECTED;
@@ -862,8 +883,8 @@
DBUG_ON(payload == NULL);
if (xpc_part_ref(part)) {
- ret = xpc_send_payload(&part->channels[ch_number], flags,
- payload, payload_size, 0, NULL, NULL);
+ ret = xpc_arch_ops.send_payload(&part->channels[ch_number],
+ flags, payload, payload_size, 0, NULL, NULL);
xpc_part_deref(part);
}
@@ -914,9 +935,8 @@
DBUG_ON(func == NULL);
if (xpc_part_ref(part)) {
- ret = xpc_send_payload(&part->channels[ch_number], flags,
- payload, payload_size, XPC_N_CALL, func,
- key);
+ ret = xpc_arch_ops.send_payload(&part->channels[ch_number],
+ flags, payload, payload_size, XPC_N_CALL, func, key);
xpc_part_deref(part);
}
return ret;
@@ -930,7 +950,7 @@
{
void *payload;
- payload = xpc_get_deliverable_payload(ch);
+ payload = xpc_arch_ops.get_deliverable_payload(ch);
if (payload != NULL) {
/*
@@ -984,7 +1004,7 @@
DBUG_ON(ch_number < 0 || ch_number >= part->nchannels);
ch = &part->channels[ch_number];
- xpc_received_payload(ch, payload);
+ xpc_arch_ops.received_payload(ch, payload);
/* the call to xpc_msgqueue_ref() was done by xpc_deliver_payload() */
xpc_msgqueue_deref(ch);
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 1ab9fda..fd3688a 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2004-2009 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
@@ -150,7 +150,6 @@
static unsigned long xpc_hb_check_timeout;
static struct timer_list xpc_hb_timer;
-void *xpc_heartbeating_to_mask;
/* notification that the xpc_hb_checker thread has exited */
static DECLARE_COMPLETION(xpc_hb_checker_exited);
@@ -170,62 +169,7 @@
.notifier_call = xpc_system_die,
};
-int (*xpc_setup_partitions_sn) (void);
-void (*xpc_teardown_partitions_sn) (void);
-enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *buf, u64 *cookie,
- unsigned long *rp_pa,
- size_t *len);
-int (*xpc_setup_rsvd_page_sn) (struct xpc_rsvd_page *rp);
-void (*xpc_heartbeat_init) (void);
-void (*xpc_heartbeat_exit) (void);
-void (*xpc_increment_heartbeat) (void);
-void (*xpc_offline_heartbeat) (void);
-void (*xpc_online_heartbeat) (void);
-enum xp_retval (*xpc_get_remote_heartbeat) (struct xpc_partition *part);
-
-enum xp_retval (*xpc_make_first_contact) (struct xpc_partition *part);
-void (*xpc_notify_senders_of_disconnect) (struct xpc_channel *ch);
-u64 (*xpc_get_chctl_all_flags) (struct xpc_partition *part);
-enum xp_retval (*xpc_setup_msg_structures) (struct xpc_channel *ch);
-void (*xpc_teardown_msg_structures) (struct xpc_channel *ch);
-void (*xpc_process_msg_chctl_flags) (struct xpc_partition *part, int ch_number);
-int (*xpc_n_of_deliverable_payloads) (struct xpc_channel *ch);
-void *(*xpc_get_deliverable_payload) (struct xpc_channel *ch);
-
-void (*xpc_request_partition_activation) (struct xpc_rsvd_page *remote_rp,
- unsigned long remote_rp_pa,
- int nasid);
-void (*xpc_request_partition_reactivation) (struct xpc_partition *part);
-void (*xpc_request_partition_deactivation) (struct xpc_partition *part);
-void (*xpc_cancel_partition_deactivation_request) (struct xpc_partition *part);
-
-void (*xpc_process_activate_IRQ_rcvd) (void);
-enum xp_retval (*xpc_setup_ch_structures_sn) (struct xpc_partition *part);
-void (*xpc_teardown_ch_structures_sn) (struct xpc_partition *part);
-
-void (*xpc_indicate_partition_engaged) (struct xpc_partition *part);
-int (*xpc_partition_engaged) (short partid);
-int (*xpc_any_partition_engaged) (void);
-void (*xpc_indicate_partition_disengaged) (struct xpc_partition *part);
-void (*xpc_assume_partition_disengaged) (short partid);
-
-void (*xpc_send_chctl_closerequest) (struct xpc_channel *ch,
- unsigned long *irq_flags);
-void (*xpc_send_chctl_closereply) (struct xpc_channel *ch,
- unsigned long *irq_flags);
-void (*xpc_send_chctl_openrequest) (struct xpc_channel *ch,
- unsigned long *irq_flags);
-void (*xpc_send_chctl_openreply) (struct xpc_channel *ch,
- unsigned long *irq_flags);
-
-enum xp_retval (*xpc_save_remote_msgqueue_pa) (struct xpc_channel *ch,
- unsigned long msgqueue_pa);
-
-enum xp_retval (*xpc_send_payload) (struct xpc_channel *ch, u32 flags,
- void *payload, u16 payload_size,
- u8 notify_type, xpc_notify_func func,
- void *key);
-void (*xpc_received_payload) (struct xpc_channel *ch, void *payload);
+struct xpc_arch_operations xpc_arch_ops;
/*
* Timer function to enforce the timelimit on the partition disengage.
@@ -240,7 +184,7 @@
(void)xpc_partition_disengaged(part);
DBUG_ON(part->disengage_timeout != 0);
- DBUG_ON(xpc_partition_engaged(XPC_PARTID(part)));
+ DBUG_ON(xpc_arch_ops.partition_engaged(XPC_PARTID(part)));
}
/*
@@ -251,7 +195,7 @@
static void
xpc_hb_beater(unsigned long dummy)
{
- xpc_increment_heartbeat();
+ xpc_arch_ops.increment_heartbeat();
if (time_is_before_eq_jiffies(xpc_hb_check_timeout))
wake_up_interruptible(&xpc_activate_IRQ_wq);
@@ -263,7 +207,7 @@
static void
xpc_start_hb_beater(void)
{
- xpc_heartbeat_init();
+ xpc_arch_ops.heartbeat_init();
init_timer(&xpc_hb_timer);
xpc_hb_timer.function = xpc_hb_beater;
xpc_hb_beater(0);
@@ -273,7 +217,7 @@
xpc_stop_hb_beater(void)
{
del_timer_sync(&xpc_hb_timer);
- xpc_heartbeat_exit();
+ xpc_arch_ops.heartbeat_exit();
}
/*
@@ -302,7 +246,7 @@
continue;
}
- ret = xpc_get_remote_heartbeat(part);
+ ret = xpc_arch_ops.get_remote_heartbeat(part);
if (ret != xpSuccess)
XPC_DEACTIVATE_PARTITION(part, ret);
}
@@ -353,7 +297,7 @@
force_IRQ = 0;
dev_dbg(xpc_part, "processing activate IRQs "
"received\n");
- xpc_process_activate_IRQ_rcvd();
+ xpc_arch_ops.process_activate_IRQ_rcvd();
}
/* wait for IRQ or timeout */
@@ -528,7 +472,7 @@
init_waitqueue_head(&ch->idle_wq);
}
- ret = xpc_setup_ch_structures_sn(part);
+ ret = xpc_arch_ops.setup_ch_structures(part);
if (ret != xpSuccess)
goto out_2;
@@ -572,7 +516,7 @@
/* now we can begin tearing down the infrastructure */
- xpc_teardown_ch_structures_sn(part);
+ xpc_arch_ops.teardown_ch_structures(part);
kfree(part->remote_openclose_args_base);
part->remote_openclose_args = NULL;
@@ -620,12 +564,12 @@
dev_dbg(xpc_part, "activating partition %d\n", partid);
- xpc_allow_hb(partid);
+ xpc_arch_ops.allow_hb(partid);
if (xpc_setup_ch_structures(part) == xpSuccess) {
(void)xpc_part_ref(part); /* this will always succeed */
- if (xpc_make_first_contact(part) == xpSuccess) {
+ if (xpc_arch_ops.make_first_contact(part) == xpSuccess) {
xpc_mark_partition_active(part);
xpc_channel_mgr(part);
/* won't return until partition is deactivating */
@@ -635,12 +579,12 @@
xpc_teardown_ch_structures(part);
}
- xpc_disallow_hb(partid);
+ xpc_arch_ops.disallow_hb(partid);
xpc_mark_partition_inactive(part);
if (part->reason == xpReactivating) {
/* interrupting ourselves results in activating partition */
- xpc_request_partition_reactivation(part);
+ xpc_arch_ops.request_partition_reactivation(part);
}
return 0;
@@ -713,10 +657,13 @@
static void
xpc_kthread_waitmsgs(struct xpc_partition *part, struct xpc_channel *ch)
{
+ int (*n_of_deliverable_payloads) (struct xpc_channel *) =
+ xpc_arch_ops.n_of_deliverable_payloads;
+
do {
/* deliver messages to their intended recipients */
- while (xpc_n_of_deliverable_payloads(ch) > 0 &&
+ while (n_of_deliverable_payloads(ch) > 0 &&
!(ch->flags & XPC_C_DISCONNECTING)) {
xpc_deliver_payload(ch);
}
@@ -732,7 +679,7 @@
"wait_event_interruptible_exclusive()\n");
(void)wait_event_interruptible_exclusive(ch->idle_wq,
- (xpc_n_of_deliverable_payloads(ch) > 0 ||
+ (n_of_deliverable_payloads(ch) > 0 ||
(ch->flags & XPC_C_DISCONNECTING)));
atomic_dec(&ch->kthreads_idle);
@@ -749,6 +696,8 @@
struct xpc_channel *ch;
int n_needed;
unsigned long irq_flags;
+ int (*n_of_deliverable_payloads) (struct xpc_channel *) =
+ xpc_arch_ops.n_of_deliverable_payloads;
dev_dbg(xpc_chan, "kthread starting, partid=%d, channel=%d\n",
partid, ch_number);
@@ -777,7 +726,7 @@
* additional kthreads to help deliver them. We only
* need one less than total #of messages to deliver.
*/
- n_needed = xpc_n_of_deliverable_payloads(ch) - 1;
+ n_needed = n_of_deliverable_payloads(ch) - 1;
if (n_needed > 0 && !(ch->flags & XPC_C_DISCONNECTING))
xpc_activate_kthreads(ch, n_needed);
@@ -805,7 +754,7 @@
if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
atomic_dec_return(&part->nchannels_engaged) == 0) {
- xpc_indicate_partition_disengaged(part);
+ xpc_arch_ops.indicate_partition_disengaged(part);
}
xpc_msgqueue_deref(ch);
@@ -837,6 +786,8 @@
u64 args = XPC_PACK_ARGS(ch->partid, ch->number);
struct xpc_partition *part = &xpc_partitions[ch->partid];
struct task_struct *kthread;
+ void (*indicate_partition_disengaged) (struct xpc_partition *) =
+ xpc_arch_ops.indicate_partition_disengaged;
while (needed-- > 0) {
@@ -858,7 +809,7 @@
} else if (atomic_inc_return(&ch->kthreads_assigned) == 1 &&
atomic_inc_return(&part->nchannels_engaged) == 1) {
- xpc_indicate_partition_engaged(part);
+ xpc_arch_ops.indicate_partition_engaged(part);
}
(void)xpc_part_ref(part);
xpc_msgqueue_ref(ch);
@@ -880,7 +831,7 @@
if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
atomic_dec_return(&part->nchannels_engaged) == 0) {
- xpc_indicate_partition_disengaged(part);
+ indicate_partition_disengaged(part);
}
xpc_msgqueue_deref(ch);
xpc_part_deref(part);
@@ -993,13 +944,13 @@
atomic_set(&part->references, 0);
}
- return xpc_setup_partitions_sn();
+ return xpc_arch_ops.setup_partitions();
}
static void
xpc_teardown_partitions(void)
{
- xpc_teardown_partitions_sn();
+ xpc_arch_ops.teardown_partitions();
kfree(xpc_partitions);
}
@@ -1055,7 +1006,7 @@
disengage_timeout = part->disengage_timeout;
}
- if (xpc_any_partition_engaged()) {
+ if (xpc_arch_ops.any_partition_engaged()) {
if (time_is_before_jiffies(printmsg_time)) {
dev_info(xpc_part, "waiting for remote "
"partitions to deactivate, timeout in "
@@ -1086,8 +1037,7 @@
} while (1);
- DBUG_ON(xpc_any_partition_engaged());
- DBUG_ON(xpc_any_hbs_allowed() != 0);
+ DBUG_ON(xpc_arch_ops.any_partition_engaged());
xpc_teardown_rsvd_page();
@@ -1152,15 +1102,15 @@
/* keep xpc_hb_checker thread from doing anything (just in case) */
xpc_exiting = 1;
- xpc_disallow_all_hbs(); /*indicate we're deactivated */
+ xpc_arch_ops.disallow_all_hbs(); /*indicate we're deactivated */
for (partid = 0; partid < xp_max_npartitions; partid++) {
part = &xpc_partitions[partid];
- if (xpc_partition_engaged(partid) ||
+ if (xpc_arch_ops.partition_engaged(partid) ||
part->act_state != XPC_P_AS_INACTIVE) {
- xpc_request_partition_deactivation(part);
- xpc_indicate_partition_disengaged(part);
+ xpc_arch_ops.request_partition_deactivation(part);
+ xpc_arch_ops.indicate_partition_disengaged(part);
}
}
@@ -1177,7 +1127,7 @@
wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL * 1000 * 5;
while (1) {
- any_engaged = xpc_any_partition_engaged();
+ any_engaged = xpc_arch_ops.any_partition_engaged();
if (!any_engaged) {
dev_info(xpc_part, "all partitions have deactivated\n");
break;
@@ -1186,7 +1136,7 @@
if (!keep_waiting--) {
for (partid = 0; partid < xp_max_npartitions;
partid++) {
- if (xpc_partition_engaged(partid)) {
+ if (xpc_arch_ops.partition_engaged(partid)) {
dev_info(xpc_part, "deactivate from "
"remote partition %d timed "
"out\n", partid);
@@ -1233,7 +1183,7 @@
/* fall through */
case DIE_MCA_MONARCH_ENTER:
case DIE_INIT_MONARCH_ENTER:
- xpc_offline_heartbeat();
+ xpc_arch_ops.offline_heartbeat();
break;
case DIE_KDEBUG_LEAVE:
@@ -1244,7 +1194,7 @@
/* fall through */
case DIE_MCA_MONARCH_LEAVE:
case DIE_INIT_MONARCH_LEAVE:
- xpc_online_heartbeat();
+ xpc_arch_ops.online_heartbeat();
break;
}
#else
diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c
index 6722f6f..65877bc 100644
--- a/drivers/misc/sgi-xp/xpc_partition.c
+++ b/drivers/misc/sgi-xp/xpc_partition.c
@@ -70,6 +70,9 @@
size_t buf_len = 0;
void *buf = buf;
void *buf_base = NULL;
+ enum xp_retval (*get_partition_rsvd_page_pa)
+ (void *, u64 *, unsigned long *, size_t *) =
+ xpc_arch_ops.get_partition_rsvd_page_pa;
while (1) {
@@ -79,8 +82,7 @@
* ??? function or have two versions? Rename rp_pa for UV to
* ??? rp_gpa?
*/
- ret = xpc_get_partition_rsvd_page_pa(buf, &cookie, &rp_pa,
- &len);
+ ret = get_partition_rsvd_page_pa(buf, &cookie, &rp_pa, &len);
dev_dbg(xpc_part, "SAL returned with ret=%d, cookie=0x%016lx, "
"address=0x%016lx, len=0x%016lx\n", ret,
@@ -172,7 +174,7 @@
xpc_part_nasids = XPC_RP_PART_NASIDS(rp);
xpc_mach_nasids = XPC_RP_MACH_NASIDS(rp);
- ret = xpc_setup_rsvd_page_sn(rp);
+ ret = xpc_arch_ops.setup_rsvd_page(rp);
if (ret != 0)
return ret;
@@ -264,7 +266,7 @@
short partid = XPC_PARTID(part);
int disengaged;
- disengaged = !xpc_partition_engaged(partid);
+ disengaged = !xpc_arch_ops.partition_engaged(partid);
if (part->disengage_timeout) {
if (!disengaged) {
if (time_is_after_jiffies(part->disengage_timeout)) {
@@ -280,7 +282,7 @@
dev_info(xpc_part, "deactivate request to remote "
"partition %d timed out\n", partid);
xpc_disengage_timedout = 1;
- xpc_assume_partition_disengaged(partid);
+ xpc_arch_ops.assume_partition_disengaged(partid);
disengaged = 1;
}
part->disengage_timeout = 0;
@@ -294,7 +296,7 @@
if (part->act_state != XPC_P_AS_INACTIVE)
xpc_wakeup_channel_mgr(part);
- xpc_cancel_partition_deactivation_request(part);
+ xpc_arch_ops.cancel_partition_deactivation_request(part);
}
return disengaged;
}
@@ -339,7 +341,7 @@
spin_unlock_irqrestore(&part->act_lock, irq_flags);
if (reason == xpReactivating) {
/* we interrupt ourselves to reactivate partition */
- xpc_request_partition_reactivation(part);
+ xpc_arch_ops.request_partition_reactivation(part);
}
return;
}
@@ -358,7 +360,7 @@
spin_unlock_irqrestore(&part->act_lock, irq_flags);
/* ask remote partition to deactivate with regard to us */
- xpc_request_partition_deactivation(part);
+ xpc_arch_ops.request_partition_deactivation(part);
/* set a timelimit on the disengage phase of the deactivation request */
part->disengage_timeout = jiffies + (xpc_disengage_timelimit * HZ);
@@ -496,7 +498,7 @@
continue;
}
- xpc_request_partition_activation(remote_rp,
+ xpc_arch_ops.request_partition_activation(remote_rp,
remote_rp_pa, nasid);
}
}
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index eaaa964..915a3b4 100644
--- a/drivers/misc/sgi-xp/xpc_sn2.c
+++ b/drivers/misc/sgi-xp/xpc_sn2.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
@@ -60,14 +60,14 @@
static struct xpc_vars_part_sn2 *xpc_vars_part_sn2;
static int
-xpc_setup_partitions_sn_sn2(void)
+xpc_setup_partitions_sn2(void)
{
/* nothing needs to be done */
return 0;
}
static void
-xpc_teardown_partitions_sn_sn2(void)
+xpc_teardown_partitions_sn2(void)
{
/* nothing needs to be done */
}
@@ -431,6 +431,13 @@
}
static void
+xpc_send_chctl_opencomplete_sn2(struct xpc_channel *ch,
+ unsigned long *irq_flags)
+{
+ XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_OPENCOMPLETE, irq_flags);
+}
+
+static void
xpc_send_chctl_msgrequest_sn2(struct xpc_channel *ch)
{
XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_MSGREQUEST, NULL);
@@ -621,7 +628,7 @@
static int
-xpc_setup_rsvd_page_sn_sn2(struct xpc_rsvd_page *rp)
+xpc_setup_rsvd_page_sn2(struct xpc_rsvd_page *rp)
{
struct amo *amos_page;
int i;
@@ -629,7 +636,7 @@
xpc_vars_sn2 = XPC_RP_VARS(rp);
- rp->sn.vars_pa = xp_pa(xpc_vars_sn2);
+ rp->sn.sn2.vars_pa = xp_pa(xpc_vars_sn2);
/* vars_part array follows immediately after vars */
xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) +
@@ -693,6 +700,33 @@
return 0;
}
+static int
+xpc_hb_allowed_sn2(short partid, void *heartbeating_to_mask)
+{
+ return test_bit(partid, heartbeating_to_mask);
+}
+
+static void
+xpc_allow_hb_sn2(short partid)
+{
+ DBUG_ON(xpc_vars_sn2 == NULL);
+ set_bit(partid, xpc_vars_sn2->heartbeating_to_mask);
+}
+
+static void
+xpc_disallow_hb_sn2(short partid)
+{
+ DBUG_ON(xpc_vars_sn2 == NULL);
+ clear_bit(partid, xpc_vars_sn2->heartbeating_to_mask);
+}
+
+static void
+xpc_disallow_all_hbs_sn2(void)
+{
+ DBUG_ON(xpc_vars_sn2 == NULL);
+ bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, xp_max_npartitions);
+}
+
static void
xpc_increment_heartbeat_sn2(void)
{
@@ -719,7 +753,6 @@
DBUG_ON(xpc_vars_sn2 == NULL);
bitmap_zero(xpc_vars_sn2->heartbeating_to_mask, XP_MAX_NPARTITIONS_SN2);
- xpc_heartbeating_to_mask = &xpc_vars_sn2->heartbeating_to_mask[0];
xpc_online_heartbeat_sn2();
}
@@ -751,9 +784,9 @@
remote_vars->heartbeating_to_mask[0]);
if ((remote_vars->heartbeat == part->last_heartbeat &&
- remote_vars->heartbeat_offline == 0) ||
- !xpc_hb_allowed(sn_partition_id,
- &remote_vars->heartbeating_to_mask)) {
+ !remote_vars->heartbeat_offline) ||
+ !xpc_hb_allowed_sn2(sn_partition_id,
+ remote_vars->heartbeating_to_mask)) {
ret = xpNoHeartbeat;
} else {
part->last_heartbeat = remote_vars->heartbeat;
@@ -972,7 +1005,7 @@
return;
}
- remote_vars_pa = remote_rp->sn.vars_pa;
+ remote_vars_pa = remote_rp->sn.sn2.vars_pa;
remote_rp_version = remote_rp->version;
remote_rp_ts_jiffies = remote_rp->ts_jiffies;
@@ -1129,7 +1162,7 @@
* Setup the channel structures that are sn2 specific.
*/
static enum xp_retval
-xpc_setup_ch_structures_sn_sn2(struct xpc_partition *part)
+xpc_setup_ch_structures_sn2(struct xpc_partition *part)
{
struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
struct xpc_channel_sn2 *ch_sn2;
@@ -1251,7 +1284,7 @@
* Teardown the channel structures that are sn2 specific.
*/
static void
-xpc_teardown_ch_structures_sn_sn2(struct xpc_partition *part)
+xpc_teardown_ch_structures_sn2(struct xpc_partition *part)
{
struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
short partid = XPC_PARTID(part);
@@ -2315,61 +2348,70 @@
xpc_acknowledge_msgs_sn2(ch, get, msg->flags);
}
+static struct xpc_arch_operations xpc_arch_ops_sn2 = {
+ .setup_partitions = xpc_setup_partitions_sn2,
+ .teardown_partitions = xpc_teardown_partitions_sn2,
+ .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2,
+ .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2,
+ .setup_rsvd_page = xpc_setup_rsvd_page_sn2,
+
+ .allow_hb = xpc_allow_hb_sn2,
+ .disallow_hb = xpc_disallow_hb_sn2,
+ .disallow_all_hbs = xpc_disallow_all_hbs_sn2,
+ .increment_heartbeat = xpc_increment_heartbeat_sn2,
+ .offline_heartbeat = xpc_offline_heartbeat_sn2,
+ .online_heartbeat = xpc_online_heartbeat_sn2,
+ .heartbeat_init = xpc_heartbeat_init_sn2,
+ .heartbeat_exit = xpc_heartbeat_exit_sn2,
+ .get_remote_heartbeat = xpc_get_remote_heartbeat_sn2,
+
+ .request_partition_activation =
+ xpc_request_partition_activation_sn2,
+ .request_partition_reactivation =
+ xpc_request_partition_reactivation_sn2,
+ .request_partition_deactivation =
+ xpc_request_partition_deactivation_sn2,
+ .cancel_partition_deactivation_request =
+ xpc_cancel_partition_deactivation_request_sn2,
+
+ .setup_ch_structures = xpc_setup_ch_structures_sn2,
+ .teardown_ch_structures = xpc_teardown_ch_structures_sn2,
+
+ .make_first_contact = xpc_make_first_contact_sn2,
+
+ .get_chctl_all_flags = xpc_get_chctl_all_flags_sn2,
+ .send_chctl_closerequest = xpc_send_chctl_closerequest_sn2,
+ .send_chctl_closereply = xpc_send_chctl_closereply_sn2,
+ .send_chctl_openrequest = xpc_send_chctl_openrequest_sn2,
+ .send_chctl_openreply = xpc_send_chctl_openreply_sn2,
+ .send_chctl_opencomplete = xpc_send_chctl_opencomplete_sn2,
+ .process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2,
+
+ .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2,
+
+ .setup_msg_structures = xpc_setup_msg_structures_sn2,
+ .teardown_msg_structures = xpc_teardown_msg_structures_sn2,
+
+ .indicate_partition_engaged = xpc_indicate_partition_engaged_sn2,
+ .indicate_partition_disengaged = xpc_indicate_partition_disengaged_sn2,
+ .partition_engaged = xpc_partition_engaged_sn2,
+ .any_partition_engaged = xpc_any_partition_engaged_sn2,
+ .assume_partition_disengaged = xpc_assume_partition_disengaged_sn2,
+
+ .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2,
+ .send_payload = xpc_send_payload_sn2,
+ .get_deliverable_payload = xpc_get_deliverable_payload_sn2,
+ .received_payload = xpc_received_payload_sn2,
+ .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2,
+};
+
int
xpc_init_sn2(void)
{
int ret;
size_t buf_size;
- xpc_setup_partitions_sn = xpc_setup_partitions_sn_sn2;
- xpc_teardown_partitions_sn = xpc_teardown_partitions_sn_sn2;
- xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2;
- xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_sn2;
- xpc_increment_heartbeat = xpc_increment_heartbeat_sn2;
- xpc_offline_heartbeat = xpc_offline_heartbeat_sn2;
- xpc_online_heartbeat = xpc_online_heartbeat_sn2;
- xpc_heartbeat_init = xpc_heartbeat_init_sn2;
- xpc_heartbeat_exit = xpc_heartbeat_exit_sn2;
- xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_sn2;
-
- xpc_request_partition_activation = xpc_request_partition_activation_sn2;
- xpc_request_partition_reactivation =
- xpc_request_partition_reactivation_sn2;
- xpc_request_partition_deactivation =
- xpc_request_partition_deactivation_sn2;
- xpc_cancel_partition_deactivation_request =
- xpc_cancel_partition_deactivation_request_sn2;
-
- xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_sn2;
- xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_sn2;
- xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_sn2;
- xpc_make_first_contact = xpc_make_first_contact_sn2;
-
- xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_sn2;
- xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_sn2;
- xpc_send_chctl_closereply = xpc_send_chctl_closereply_sn2;
- xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_sn2;
- xpc_send_chctl_openreply = xpc_send_chctl_openreply_sn2;
-
- xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_sn2;
-
- xpc_setup_msg_structures = xpc_setup_msg_structures_sn2;
- xpc_teardown_msg_structures = xpc_teardown_msg_structures_sn2;
-
- xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_sn2;
- xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_sn2;
- xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_sn2;
- xpc_get_deliverable_payload = xpc_get_deliverable_payload_sn2;
-
- xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_sn2;
- xpc_indicate_partition_disengaged =
- xpc_indicate_partition_disengaged_sn2;
- xpc_partition_engaged = xpc_partition_engaged_sn2;
- xpc_any_partition_engaged = xpc_any_partition_engaged_sn2;
- xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_sn2;
-
- xpc_send_payload = xpc_send_payload_sn2;
- xpc_received_payload = xpc_received_payload_sn2;
+ xpc_arch_ops = xpc_arch_ops_sn2;
if (offsetof(struct xpc_msg_sn2, payload) > XPC_MSG_HDR_MAX_SIZE) {
dev_err(xpc_part, "header portion of struct xpc_msg_sn2 is "
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index f7fff47..9172fcd 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -46,8 +46,7 @@
};
#endif
-static atomic64_t xpc_heartbeat_uv;
-static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
+static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
#define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
#define XPC_ACTIVATE_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \
@@ -63,7 +62,7 @@
static struct xpc_gru_mq_uv *xpc_notify_mq_uv;
static int
-xpc_setup_partitions_sn_uv(void)
+xpc_setup_partitions_uv(void)
{
short partid;
struct xpc_partition_uv *part_uv;
@@ -79,7 +78,7 @@
}
static void
-xpc_teardown_partitions_sn_uv(void)
+xpc_teardown_partitions_uv(void)
{
short partid;
struct xpc_partition_uv *part_uv;
@@ -423,41 +422,6 @@
/* syncing of remote_act_state was just done above */
break;
- case XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
- break;
- }
- case XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
-
- spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
- part_uv->flags |= XPC_P_HEARTBEAT_OFFLINE_UV;
- spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
- break;
- }
- case XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV: {
- struct xpc_activate_mq_msg_heartbeat_req_uv *msg;
-
- msg = container_of(msg_hdr,
- struct xpc_activate_mq_msg_heartbeat_req_uv,
- hdr);
- part_uv->heartbeat = msg->heartbeat;
-
- spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
- part_uv->flags &= ~XPC_P_HEARTBEAT_OFFLINE_UV;
- spin_unlock_irqrestore(&part_uv->flags_lock, irq_flags);
- break;
- }
case XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV: {
struct xpc_activate_mq_msg_activate_req_uv *msg;
@@ -475,6 +439,7 @@
part_uv->act_state_req = XPC_P_ASR_ACTIVATE_UV;
part->remote_rp_pa = msg->rp_gpa; /* !!! _pa is _gpa */
part->remote_rp_ts_jiffies = msg_hdr->rp_ts_jiffies;
+ part_uv->heartbeat_gpa = msg->heartbeat_gpa;
if (msg->activate_gru_mq_desc_gpa !=
part_uv->activate_gru_mq_desc_gpa) {
@@ -569,6 +534,17 @@
xpc_wakeup_channel_mgr(part);
break;
}
+ case XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV: {
+ struct xpc_activate_mq_msg_chctl_opencomplete_uv *msg;
+
+ msg = container_of(msg_hdr, struct
+ xpc_activate_mq_msg_chctl_opencomplete_uv, hdr);
+ spin_lock_irqsave(&part->chctl_lock, irq_flags);
+ part->chctl.flags[msg->ch_number] |= XPC_CHCTL_OPENCOMPLETE;
+ spin_unlock_irqrestore(&part->chctl_lock, irq_flags);
+
+ xpc_wakeup_channel_mgr(part);
+ }
case XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV:
spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
part_uv->flags |= XPC_P_ENGAGED_UV;
@@ -759,7 +735,7 @@
/*
* !!! Make our side think that the remote partition sent an activate
- * !!! message our way by doing what the activate IRQ handler would
+ * !!! mq message our way by doing what the activate IRQ handler would
* !!! do had one really been sent.
*/
@@ -806,90 +782,82 @@
}
static int
-xpc_setup_rsvd_page_sn_uv(struct xpc_rsvd_page *rp)
+xpc_setup_rsvd_page_uv(struct xpc_rsvd_page *rp)
{
- rp->sn.activate_gru_mq_desc_gpa =
+ xpc_heartbeat_uv =
+ &xpc_partitions[sn_partition_id].sn.uv.cached_heartbeat;
+ rp->sn.uv.heartbeat_gpa = uv_gpa(xpc_heartbeat_uv);
+ rp->sn.uv.activate_gru_mq_desc_gpa =
uv_gpa(xpc_activate_mq_uv->gru_mq_desc);
return 0;
}
static void
-xpc_send_heartbeat_uv(int msg_type)
+xpc_allow_hb_uv(short partid)
{
- short partid;
- struct xpc_partition *part;
- struct xpc_activate_mq_msg_heartbeat_req_uv msg;
+}
- /*
- * !!! On uv we're broadcasting a heartbeat message every 5 seconds.
- * !!! Whereas on sn2 we're bte_copy'ng the heartbeat info every 20
- * !!! seconds. This is an increase in numalink traffic.
- * ??? Is this good?
- */
+static void
+xpc_disallow_hb_uv(short partid)
+{
+}
- msg.heartbeat = atomic64_inc_return(&xpc_heartbeat_uv);
-
- partid = find_first_bit(xpc_heartbeating_to_mask_uv,
- XP_MAX_NPARTITIONS_UV);
-
- while (partid < XP_MAX_NPARTITIONS_UV) {
- part = &xpc_partitions[partid];
-
- xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
- msg_type);
-
- partid = find_next_bit(xpc_heartbeating_to_mask_uv,
- XP_MAX_NPARTITIONS_UV, partid + 1);
- }
+static void
+xpc_disallow_all_hbs_uv(void)
+{
}
static void
xpc_increment_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_INC_HEARTBEAT_UV);
+ xpc_heartbeat_uv->value++;
}
static void
xpc_offline_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+ xpc_increment_heartbeat_uv();
+ xpc_heartbeat_uv->offline = 1;
}
static void
xpc_online_heartbeat_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_ONLINE_HEARTBEAT_UV);
+ xpc_increment_heartbeat_uv();
+ xpc_heartbeat_uv->offline = 0;
}
static void
xpc_heartbeat_init_uv(void)
{
- atomic64_set(&xpc_heartbeat_uv, 0);
- bitmap_zero(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
- xpc_heartbeating_to_mask = &xpc_heartbeating_to_mask_uv[0];
+ xpc_heartbeat_uv->value = 1;
+ xpc_heartbeat_uv->offline = 0;
}
static void
xpc_heartbeat_exit_uv(void)
{
- xpc_send_heartbeat_uv(XPC_ACTIVATE_MQ_MSG_OFFLINE_HEARTBEAT_UV);
+ xpc_offline_heartbeat_uv();
}
static enum xp_retval
xpc_get_remote_heartbeat_uv(struct xpc_partition *part)
{
struct xpc_partition_uv *part_uv = &part->sn.uv;
- enum xp_retval ret = xpNoHeartbeat;
+ enum xp_retval ret;
- if (part_uv->remote_act_state != XPC_P_AS_INACTIVE &&
- part_uv->remote_act_state != XPC_P_AS_DEACTIVATING) {
+ ret = xp_remote_memcpy(uv_gpa(&part_uv->cached_heartbeat),
+ part_uv->heartbeat_gpa,
+ sizeof(struct xpc_heartbeat_uv));
+ if (ret != xpSuccess)
+ return ret;
- if (part_uv->heartbeat != part->last_heartbeat ||
- (part_uv->flags & XPC_P_HEARTBEAT_OFFLINE_UV)) {
+ if (part_uv->cached_heartbeat.value == part->last_heartbeat &&
+ !part_uv->cached_heartbeat.offline) {
- part->last_heartbeat = part_uv->heartbeat;
- ret = xpSuccess;
- }
+ ret = xpNoHeartbeat;
+ } else {
+ part->last_heartbeat = part_uv->cached_heartbeat.value;
}
return ret;
}
@@ -904,8 +872,9 @@
part->remote_rp_pa = remote_rp_gpa; /* !!! _pa here is really _gpa */
part->remote_rp_ts_jiffies = remote_rp->ts_jiffies;
+ part->sn.uv.heartbeat_gpa = remote_rp->sn.uv.heartbeat_gpa;
part->sn.uv.activate_gru_mq_desc_gpa =
- remote_rp->sn.activate_gru_mq_desc_gpa;
+ remote_rp->sn.uv.activate_gru_mq_desc_gpa;
/*
* ??? Is it a good idea to make this conditional on what is
@@ -913,8 +882,9 @@
*/
if (part->sn.uv.remote_act_state == XPC_P_AS_INACTIVE) {
msg.rp_gpa = uv_gpa(xpc_rsvd_page);
+ msg.heartbeat_gpa = xpc_rsvd_page->sn.uv.heartbeat_gpa;
msg.activate_gru_mq_desc_gpa =
- xpc_rsvd_page->sn.activate_gru_mq_desc_gpa;
+ xpc_rsvd_page->sn.uv.activate_gru_mq_desc_gpa;
xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV);
}
@@ -1010,7 +980,7 @@
* Setup the channel structures that are uv specific.
*/
static enum xp_retval
-xpc_setup_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_setup_ch_structures_uv(struct xpc_partition *part)
{
struct xpc_channel_uv *ch_uv;
int ch_number;
@@ -1029,7 +999,7 @@
* Teardown the channel structures that are uv specific.
*/
static void
-xpc_teardown_ch_structures_sn_uv(struct xpc_partition *part)
+xpc_teardown_ch_structures_uv(struct xpc_partition *part)
{
/* nothing needs to be done */
return;
@@ -1243,6 +1213,16 @@
}
static void
+xpc_send_chctl_opencomplete_uv(struct xpc_channel *ch, unsigned long *irq_flags)
+{
+ struct xpc_activate_mq_msg_chctl_opencomplete_uv msg;
+
+ msg.ch_number = ch->number;
+ xpc_send_activate_IRQ_ch_uv(ch, irq_flags, &msg, sizeof(msg),
+ XPC_ACTIVATE_MQ_MSG_CHCTL_OPENCOMPLETE_UV);
+}
+
+static void
xpc_send_chctl_local_msgrequest_uv(struct xpc_partition *part, int ch_number)
{
unsigned long irq_flags;
@@ -1669,58 +1649,67 @@
msg->hdr.msg_slot_number += ch->remote_nentries;
}
+static struct xpc_arch_operations xpc_arch_ops_uv = {
+ .setup_partitions = xpc_setup_partitions_uv,
+ .teardown_partitions = xpc_teardown_partitions_uv,
+ .process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv,
+ .get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv,
+ .setup_rsvd_page = xpc_setup_rsvd_page_uv,
+
+ .allow_hb = xpc_allow_hb_uv,
+ .disallow_hb = xpc_disallow_hb_uv,
+ .disallow_all_hbs = xpc_disallow_all_hbs_uv,
+ .increment_heartbeat = xpc_increment_heartbeat_uv,
+ .offline_heartbeat = xpc_offline_heartbeat_uv,
+ .online_heartbeat = xpc_online_heartbeat_uv,
+ .heartbeat_init = xpc_heartbeat_init_uv,
+ .heartbeat_exit = xpc_heartbeat_exit_uv,
+ .get_remote_heartbeat = xpc_get_remote_heartbeat_uv,
+
+ .request_partition_activation =
+ xpc_request_partition_activation_uv,
+ .request_partition_reactivation =
+ xpc_request_partition_reactivation_uv,
+ .request_partition_deactivation =
+ xpc_request_partition_deactivation_uv,
+ .cancel_partition_deactivation_request =
+ xpc_cancel_partition_deactivation_request_uv,
+
+ .setup_ch_structures = xpc_setup_ch_structures_uv,
+ .teardown_ch_structures = xpc_teardown_ch_structures_uv,
+
+ .make_first_contact = xpc_make_first_contact_uv,
+
+ .get_chctl_all_flags = xpc_get_chctl_all_flags_uv,
+ .send_chctl_closerequest = xpc_send_chctl_closerequest_uv,
+ .send_chctl_closereply = xpc_send_chctl_closereply_uv,
+ .send_chctl_openrequest = xpc_send_chctl_openrequest_uv,
+ .send_chctl_openreply = xpc_send_chctl_openreply_uv,
+ .send_chctl_opencomplete = xpc_send_chctl_opencomplete_uv,
+ .process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv,
+
+ .save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv,
+
+ .setup_msg_structures = xpc_setup_msg_structures_uv,
+ .teardown_msg_structures = xpc_teardown_msg_structures_uv,
+
+ .indicate_partition_engaged = xpc_indicate_partition_engaged_uv,
+ .indicate_partition_disengaged = xpc_indicate_partition_disengaged_uv,
+ .assume_partition_disengaged = xpc_assume_partition_disengaged_uv,
+ .partition_engaged = xpc_partition_engaged_uv,
+ .any_partition_engaged = xpc_any_partition_engaged_uv,
+
+ .n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv,
+ .send_payload = xpc_send_payload_uv,
+ .get_deliverable_payload = xpc_get_deliverable_payload_uv,
+ .received_payload = xpc_received_payload_uv,
+ .notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv,
+};
+
int
xpc_init_uv(void)
{
- xpc_setup_partitions_sn = xpc_setup_partitions_sn_uv;
- xpc_teardown_partitions_sn = xpc_teardown_partitions_sn_uv;
- xpc_process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv;
- xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_uv;
- xpc_setup_rsvd_page_sn = xpc_setup_rsvd_page_sn_uv;
- xpc_increment_heartbeat = xpc_increment_heartbeat_uv;
- xpc_offline_heartbeat = xpc_offline_heartbeat_uv;
- xpc_online_heartbeat = xpc_online_heartbeat_uv;
- xpc_heartbeat_init = xpc_heartbeat_init_uv;
- xpc_heartbeat_exit = xpc_heartbeat_exit_uv;
- xpc_get_remote_heartbeat = xpc_get_remote_heartbeat_uv;
-
- xpc_request_partition_activation = xpc_request_partition_activation_uv;
- xpc_request_partition_reactivation =
- xpc_request_partition_reactivation_uv;
- xpc_request_partition_deactivation =
- xpc_request_partition_deactivation_uv;
- xpc_cancel_partition_deactivation_request =
- xpc_cancel_partition_deactivation_request_uv;
-
- xpc_setup_ch_structures_sn = xpc_setup_ch_structures_sn_uv;
- xpc_teardown_ch_structures_sn = xpc_teardown_ch_structures_sn_uv;
-
- xpc_make_first_contact = xpc_make_first_contact_uv;
-
- xpc_get_chctl_all_flags = xpc_get_chctl_all_flags_uv;
- xpc_send_chctl_closerequest = xpc_send_chctl_closerequest_uv;
- xpc_send_chctl_closereply = xpc_send_chctl_closereply_uv;
- xpc_send_chctl_openrequest = xpc_send_chctl_openrequest_uv;
- xpc_send_chctl_openreply = xpc_send_chctl_openreply_uv;
-
- xpc_save_remote_msgqueue_pa = xpc_save_remote_msgqueue_pa_uv;
-
- xpc_setup_msg_structures = xpc_setup_msg_structures_uv;
- xpc_teardown_msg_structures = xpc_teardown_msg_structures_uv;
-
- xpc_indicate_partition_engaged = xpc_indicate_partition_engaged_uv;
- xpc_indicate_partition_disengaged =
- xpc_indicate_partition_disengaged_uv;
- xpc_assume_partition_disengaged = xpc_assume_partition_disengaged_uv;
- xpc_partition_engaged = xpc_partition_engaged_uv;
- xpc_any_partition_engaged = xpc_any_partition_engaged_uv;
-
- xpc_n_of_deliverable_payloads = xpc_n_of_deliverable_payloads_uv;
- xpc_process_msg_chctl_flags = xpc_process_msg_chctl_flags_uv;
- xpc_send_payload = xpc_send_payload_uv;
- xpc_notify_senders_of_disconnect = xpc_notify_senders_of_disconnect_uv;
- xpc_get_deliverable_payload = xpc_get_deliverable_payload_uv;
- xpc_received_payload = xpc_received_payload_uv;
+ xpc_arch_ops = xpc_arch_ops_uv;
if (sizeof(struct xpc_notify_mq_msghdr_uv) > XPC_MSG_HDR_MAX_SIZE) {
dev_err(xpc_part, "xpc_notify_mq_msghdr_uv is larger than %d\n",
diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
index deb7b53..83a1212 100644
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -2532,8 +2532,8 @@
* various kernel subsystems to support the mechanics required by a
* fixed-high-32-bit system.
*/
- if ((pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) ||
- (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) != 0)) {
+ if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
+ (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
dev_err(&pdev->dev, "No usable DMA configuration,aborting\n");
goto err_dma;
}
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 9b75aa6..30d0c81 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -1821,11 +1821,11 @@
be_msix_enable(adapter);
- status = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!status) {
netdev->features |= NETIF_F_HIGHDMA;
} else {
- status = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (status) {
dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
goto free_netdev;
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index ece3504..621a7c0 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -2591,13 +2591,13 @@
jme_pci_dma64(struct pci_dev *pdev)
{
if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
- !pci_set_dma_mask(pdev, DMA_64BIT_MASK))
- if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
+ !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
return 1;
if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250 &&
- !pci_set_dma_mask(pdev, DMA_40BIT_MASK))
- if (!pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK))
+ !pci_set_dma_mask(pdev, DMA_BIT_MASK(40)))
+ if (!pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)))
return 1;
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
diff --git a/drivers/net/wireless/ath9k/pci.c b/drivers/net/wireless/ath9k/pci.c
index 6dbc585..168411d 100644
--- a/drivers/net/wireless/ath9k/pci.c
+++ b/drivers/net/wireless/ath9k/pci.c
@@ -93,14 +93,14 @@
if (pci_enable_device(pdev))
return -EIO;
- ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
goto bad;
}
- ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA consistent "
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index e3569a0..b1610ea 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -492,8 +492,8 @@
goto err_disable_dev;
}
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
- pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
+ pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
dev_err(&pdev->dev, "No suitable DMA available\n");
goto err_free_reg;
}
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 4fa3bb2..33e5ade 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -434,7 +434,8 @@
0 /*base_hi*/,
PAR_IRQ,
PARPORT_DMA_NONE /* dma */,
- NULL /*struct pci_dev* */) )
+ NULL /*struct pci_dev* */),
+ 0 /* shared irq flags */ )
printk(KERN_WARNING PFX "Probing parallel port failed.\n");
#endif /* CONFIG_PARPORT_PC */
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 25a00ce..fa3a113 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -173,12 +173,21 @@
struct dmar_drhd_unit *dmaru;
int ret = 0;
+ drhd = (struct acpi_dmar_hardware_unit *)header;
+ if (!drhd->address) {
+ /* Promote an attitude of violence to a BIOS engineer today */
+ WARN(1, "Your BIOS is broken; DMAR reported at address zero!\n"
+ "BIOS vendor: %s; Ver: %s; Product Version: %s\n",
+ dmi_get_system_info(DMI_BIOS_VENDOR),
+ dmi_get_system_info(DMI_BIOS_VERSION),
+ dmi_get_system_info(DMI_PRODUCT_VERSION));
+ return -ENODEV;
+ }
dmaru = kzalloc(sizeof(*dmaru), GFP_KERNEL);
if (!dmaru)
return -ENOMEM;
dmaru->hdr = header;
- drhd = (struct acpi_dmar_hardware_unit *)header;
dmaru->reg_base_addr = drhd->address;
dmaru->segment = drhd->segment;
dmaru->include_all = drhd->flags & 0x1; /* BIT0: INCLUDE_ALL */
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index fb3a3f3..001b328 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -733,8 +733,8 @@
start &= (((u64)1) << addr_width) - 1;
end &= (((u64)1) << addr_width) - 1;
/* in case it's partial page */
- start = PAGE_ALIGN(start);
- end &= PAGE_MASK;
+ start &= PAGE_MASK;
+ end = PAGE_ALIGN(end);
npages = (end - start) / VTD_PAGE_SIZE;
/* we don't need lock here, nobody else touches the iova range */
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index fdb14ec..8b7983a 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2234,10 +2234,10 @@
pci_set_master(pdev);
pci_try_set_mwi(pdev);
- if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
- || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)
- || pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
retval = -ENODEV;
goto out_disable_device;
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 280261c..2a88985 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1378,7 +1378,7 @@
if (dev->nondasd_support && !dev->in_reset)
printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
- if (dma_get_required_mask(&dev->pdev->dev) > DMA_32BIT_MASK)
+ if (dma_get_required_mask(&dev->pdev->dev) > DMA_BIT_MASK(32))
dev->needs_dac = 1;
dev->dac_support = 0;
if ((sizeof(dma_addr_t) > 4) && dev->needs_dac &&
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b1bd3fc..36fd2e7 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1394,7 +1394,7 @@
*/
cmd->sense_buffer[8] = 0; /* Information */
cmd->sense_buffer[9] = 0xa; /* Add. length */
- do_div(bghm, cmd->device->sector_size);
+ bghm /= cmd->device->sector_size;
failing_sector = scsi_get_lba(cmd);
failing_sector += bghm;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 52427a8..a91f514 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -855,9 +855,9 @@
if (sizeof(dma_addr_t) > 4) {
const uint64_t required_mask =
dma_get_required_mask(&pdev->dev);
- if ((required_mask > DMA_32BIT_MASK) && !pci_set_dma_mask(pdev,
- DMA_64BIT_MASK) && !pci_set_consistent_dma_mask(pdev,
- DMA_64BIT_MASK)) {
+ if ((required_mask > DMA_BIT_MASK(32)) && !pci_set_dma_mask(pdev,
+ DMA_BIT_MASK(64)) && !pci_set_consistent_dma_mask(pdev,
+ DMA_BIT_MASK(64))) {
ioc->base_add_sg_single = &_base_add_sg_single_64;
ioc->sge_size = sizeof(Mpi2SGESimple64_t);
desc = "64";
@@ -865,8 +865,8 @@
}
}
- if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)
- && !pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
ioc->base_add_sg_single = &_base_add_sg_single_32;
ioc->sge_size = sizeof(Mpi2SGESimple32_t);
desc = "32";
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index e185090..fbc83be 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -38,9 +38,6 @@
{ };
#endif
-/* scsi_scan.c */
-int scsi_complete_async_scans(void);
-
/* scsi_devinfo.c */
extern int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
diff --git a/drivers/scsi/scsi_wait_scan.c b/drivers/scsi/scsi_wait_scan.c
index 8a63610..2f21af2 100644
--- a/drivers/scsi/scsi_wait_scan.c
+++ b/drivers/scsi/scsi_wait_scan.c
@@ -11,7 +11,7 @@
*/
#include <linux/module.h>
-#include "scsi_priv.h"
+#include <scsi/scsi_scan.h>
static int __init wait_scan_init(void)
{
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0328fd4..343e3a3 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -854,7 +854,7 @@
config SERIAL_UARTLITE
tristate "Xilinx uartlite serial port support"
- depends on PPC32
+ depends on PPC32 || MICROBLAZE
select SERIAL_CORE
help
Say Y here if you want to use the Xilinx uartlite serial controller.
@@ -1340,7 +1340,7 @@
config SERIAL_OF_PLATFORM
tristate "Serial port on Open Firmware platform bus"
- depends on PPC_OF
+ depends on PPC_OF || MICROBLAZE
depends on SERIAL_8250 || SERIAL_OF_PLATFORM_NWPSERIAL
help
If you have a PowerPC based system that has serial ports
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 7fb9b5c..12d13d9 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -44,6 +44,7 @@
struct intc_desc_int {
struct list_head list;
struct sys_device sysdev;
+ pm_message_t state;
unsigned long *reg;
#ifdef CONFIG_SMP
unsigned long *smp;
@@ -786,18 +787,44 @@
/* get intc controller associated with this sysdev */
d = container_of(dev, struct intc_desc_int, sysdev);
- /* enable wakeup irqs belonging to this intc controller */
- for_each_irq_desc(irq, desc) {
- if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
- intc_enable(irq);
+ switch (state.event) {
+ case PM_EVENT_ON:
+ if (d->state.event != PM_EVENT_FREEZE)
+ break;
+ for_each_irq_desc(irq, desc) {
+ if (desc->chip != &d->chip)
+ continue;
+ if (desc->status & IRQ_DISABLED)
+ intc_disable(irq);
+ else
+ intc_enable(irq);
+ }
+ break;
+ case PM_EVENT_FREEZE:
+ /* nothing has to be done */
+ break;
+ case PM_EVENT_SUSPEND:
+ /* enable wakeup irqs belonging to this intc controller */
+ for_each_irq_desc(irq, desc) {
+ if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
+ intc_enable(irq);
+ }
+ break;
}
+ d->state = state;
return 0;
}
+static int intc_resume(struct sys_device *dev)
+{
+ return intc_suspend(dev, PMSG_ON);
+}
+
static struct sysdev_class intc_sysdev_class = {
.name = "intc",
.suspend = intc_suspend,
+ .resume = intc_resume,
};
/* register this intc as sysdev to allow suspend/resume */
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 643908b..8eba98c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -658,7 +658,7 @@
int status;
struct spi_message message;
- struct spi_transfer x;
+ struct spi_transfer x[2];
u8 *local_buf;
/* Use preallocated DMA-safe buffer. We can't avoid copying here,
@@ -669,9 +669,15 @@
return -EINVAL;
spi_message_init(&message);
- memset(&x, 0, sizeof x);
- x.len = n_tx + n_rx;
- spi_message_add_tail(&x, &message);
+ memset(x, 0, sizeof x);
+ if (n_tx) {
+ x[0].len = n_tx;
+ spi_message_add_tail(&x[0], &message);
+ }
+ if (n_rx) {
+ x[1].len = n_rx;
+ spi_message_add_tail(&x[1], &message);
+ }
/* ... unless someone else is using the pre-allocated buffer */
if (!mutex_trylock(&lock)) {
@@ -682,15 +688,15 @@
local_buf = buf;
memcpy(local_buf, txbuf, n_tx);
- x.tx_buf = local_buf;
- x.rx_buf = local_buf;
+ x[0].tx_buf = local_buf;
+ x[1].rx_buf = local_buf + n_tx;
/* do the i/o */
status = spi_sync(spi, &message);
if (status == 0)
- memcpy(rxbuf, x.rx_buf + n_tx, n_rx);
+ memcpy(rxbuf, x[1].rx_buf, n_rx);
- if (x.tx_buf == buf)
+ if (x[0].tx_buf == buf)
mutex_unlock(&lock);
else
kfree(local_buf);
diff --git a/drivers/staging/b3dfg/b3dfg.c b/drivers/staging/b3dfg/b3dfg.c
index 0348072..75ebe33 100644
--- a/drivers/staging/b3dfg/b3dfg.c
+++ b/drivers/staging/b3dfg/b3dfg.c
@@ -1000,7 +1000,7 @@
pci_set_master(pdev);
- r = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ r = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (r) {
dev_err(&pdev->dev, "no usable DMA configuration\n");
goto err_free_res;
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 869d47c..0a69c09 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -546,10 +546,6 @@
tty->driver_data = acm;
acm->tty = tty;
- /* force low_latency on so that our tty_push actually forces the data through,
- otherwise it is scheduled, and with high data rates data can get lost. */
- tty->low_latency = 1;
-
if (usb_autopm_get_interface(acm->control) < 0)
goto early_bail;
else
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
index 4b933f6..c567168 100644
--- a/drivers/usb/otg/nop-usb-xceiv.c
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -36,14 +36,14 @@
struct device *dev;
};
-static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
static struct platform_device nop_xceiv_device = {
.name = "nop_usb_xceiv",
.id = -1,
.dev = {
.dma_mask = &nop_xceiv_dmamask,
- .coherent_dma_mask = DMA_32BIT_MASK,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = NULL,
},
};
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 2620bf6..9c4c700 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1215,20 +1215,22 @@
}
tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- usb_serial_debug_data(debug, dev, __func__,
- urb->actual_length, urb->transfer_buffer);
+ if (tty) {
+ if (urb->actual_length) {
+ usb_serial_debug_data(debug, dev, __func__,
+ urb->actual_length, urb->transfer_buffer);
- if (!tport->tp_is_open)
- dbg("%s - port closed, dropping data", __func__);
- else
- ti_recv(&urb->dev->dev, tty,
+ if (!tport->tp_is_open)
+ dbg("%s - port closed, dropping data",
+ __func__);
+ else
+ ti_recv(&urb->dev->dev, tty,
urb->transfer_buffer,
urb->actual_length);
-
- spin_lock(&tport->tp_lock);
- tport->tp_icount.rx += urb->actual_length;
- spin_unlock(&tport->tp_lock);
+ spin_lock(&tport->tp_lock);
+ tport->tp_icount.rx += urb->actual_length;
+ spin_unlock(&tport->tp_lock);
+ }
tty_kref_put(tty);
}
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index 16bb7e3..6c37e8e 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -698,8 +698,8 @@
found:
/*
* Some methods fail to retrieve SCLK and MCLK values, we apply default
- * settings in this case (200Mhz). If that really happne often, we could
- * fetch from registers instead...
+ * settings in this case (200Mhz). If that really happens often, we
+ * could fetch from registers instead...
*/
if (rinfo->pll.mclk == 0)
rinfo->pll.mclk = 20000;
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index dd37cbc..157057c 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -35,8 +35,6 @@
return 0;
bd = container_of(self, struct backlight_device, fb_notif);
- if (!lock_fb_info(evdata->info))
- return -ENODEV;
mutex_lock(&bd->ops_lock);
if (bd->ops)
if (!bd->ops->check_fb ||
@@ -49,7 +47,6 @@
backlight_update_status(bd);
}
mutex_unlock(&bd->ops_lock);
- unlock_fb_info(evdata->info);
return 0;
}
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 0bb13df..b644947 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -40,8 +40,6 @@
if (!ld->ops)
return 0;
- if (!lock_fb_info(evdata->info))
- return -ENODEV;
mutex_lock(&ld->ops_lock);
if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info)) {
if (event == FB_EVENT_BLANK) {
@@ -53,7 +51,6 @@
}
}
mutex_unlock(&ld->ops_lock);
- unlock_fb_info(evdata->info);
return 0;
}
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index d42e385..4c2bf92 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -567,9 +567,7 @@
default:
dev_dbg(info->device,
"Unsupported bpp size: %d\n", var->bits_per_pixel);
- assert(false);
- /* should never occur */
- break;
+ return -EINVAL;
}
if (var->xres_virtual < var->xres)
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 2cd500a..471a9a6 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2263,9 +2263,12 @@
}
+ if (!lock_fb_info(info))
+ return;
event.info = info;
event.data = ␣
fb_notifier_call_chain(FB_EVENT_CONBLANK, &event);
+ unlock_fb_info(info);
}
static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
@@ -2956,8 +2959,6 @@
{
int i, idx;
- if (!lock_fb_info(info))
- return -ENODEV;
idx = info->node;
for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map[i] == idx)
@@ -2985,8 +2986,6 @@
if (primary_device == idx)
primary_device = -1;
- unlock_fb_info(info);
-
if (!num_registered_fb)
unregister_con_driver(&fb_con);
@@ -3027,11 +3026,8 @@
{
int ret = 0, i, idx;
- if (!lock_fb_info(info))
- return -ENODEV;
idx = info->node;
fbcon_select_primary(info);
- unlock_fb_info(info);
if (info_idx == -1) {
for (i = first_fb_vc; i <= last_fb_vc; i++) {
@@ -3152,53 +3148,23 @@
switch(action) {
case FB_EVENT_SUSPEND:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_suspended(info);
- unlock_fb_info(info);
break;
case FB_EVENT_RESUME:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_resumed(info);
- unlock_fb_info(info);
break;
case FB_EVENT_MODE_CHANGE:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_modechanged(info);
- unlock_fb_info(info);
break;
case FB_EVENT_MODE_CHANGE_ALL:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_set_all_vcs(info);
- unlock_fb_info(info);
break;
case FB_EVENT_MODE_DELETE:
mode = event->data;
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
ret = fbcon_mode_deleted(info, mode);
- unlock_fb_info(info);
break;
case FB_EVENT_FB_UNBIND:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
idx = info->node;
- unlock_fb_info(info);
ret = fbcon_fb_unbind(idx);
break;
case FB_EVENT_FB_REGISTERED:
@@ -3217,29 +3183,14 @@
con2fb->framebuffer = con2fb_map[con2fb->console - 1];
break;
case FB_EVENT_BLANK:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_fb_blanked(info, *(int *)event->data);
- unlock_fb_info(info);
break;
case FB_EVENT_NEW_MODELIST:
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_new_modelist(info);
- unlock_fb_info(info);
break;
case FB_EVENT_GET_REQ:
caps = event->data;
- if (!lock_fb_info(info)) {
- ret = -ENODEV;
- goto done;
- }
fbcon_get_requirement(info, caps);
- unlock_fb_info(info);
break;
}
done:
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 0c5b9a9..8dea2bc 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -210,12 +210,15 @@
unsigned int size_total;
int request_succeeded = 0;
- printk(KERN_INFO "efifb: probing for efifb\n");
-
if (!screen_info.lfb_depth)
screen_info.lfb_depth = 32;
if (!screen_info.pages)
screen_info.pages = 1;
+ if (!screen_info.lfb_base) {
+ printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
+ return -ENODEV;
+ }
+ printk(KERN_INFO "efifb: probing for efifb\n");
/* just assume they're all unset if any are */
if (!screen_info.blue_size) {
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 2ac32e6..d412a1d 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1097,8 +1097,11 @@
return -EINVAL;
con2fb.framebuffer = -1;
event.data = &con2fb;
+ if (!lock_fb_info(info))
+ return -ENODEV;
event.info = info;
fb_notifier_call_chain(FB_EVENT_GET_CONSOLE_MAP, &event);
+ unlock_fb_info(info);
ret = copy_to_user(argp, &con2fb, sizeof(con2fb)) ? -EFAULT : 0;
break;
case FBIOPUT_CON2FBMAP:
@@ -1115,8 +1118,11 @@
break;
}
event.data = &con2fb;
+ if (!lock_fb_info(info))
+ return -ENODEV;
event.info = info;
ret = fb_notifier_call_chain(FB_EVENT_SET_CONSOLE_MAP, &event);
+ unlock_fb_info(info);
break;
case FBIOBLANK:
if (!lock_fb_info(info))
@@ -1521,7 +1527,10 @@
registered_fb[i] = fb_info;
event.info = fb_info;
+ if (!lock_fb_info(fb_info))
+ return -ENODEV;
fb_notifier_call_chain(FB_EVENT_FB_REGISTERED, &event);
+ unlock_fb_info(fb_info);
return 0;
}
@@ -1555,8 +1564,12 @@
goto done;
}
+
+ if (!lock_fb_info(fb_info))
+ return -ENODEV;
event.info = fb_info;
ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event);
+ unlock_fb_info(fb_info);
if (ret) {
ret = -EINVAL;
@@ -1590,6 +1603,8 @@
{
struct fb_event event;
+ if (!lock_fb_info(info))
+ return;
event.info = info;
if (state) {
fb_notifier_call_chain(FB_EVENT_SUSPEND, &event);
@@ -1598,6 +1613,7 @@
info->state = FBINFO_STATE_RUNNING;
fb_notifier_call_chain(FB_EVENT_RESUME, &event);
}
+ unlock_fb_info(info);
}
/**
@@ -1667,8 +1683,11 @@
err = 1;
if (!list_empty(&info->modelist)) {
+ if (!lock_fb_info(info))
+ return -ENODEV;
event.info = info;
err = fb_notifier_call_chain(FB_EVENT_NEW_MODELIST, &event);
+ unlock_fb_info(info);
}
return err;
diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index a50bea6..4098455 100644
--- a/drivers/video/intelfb/intelfb.h
+++ b/drivers/video/intelfb/intelfb.h
@@ -53,6 +53,7 @@
#define PCI_DEVICE_ID_INTEL_830M 0x3577
#define PCI_DEVICE_ID_INTEL_845G 0x2562
#define PCI_DEVICE_ID_INTEL_85XGM 0x3582
+#define PCI_DEVICE_ID_INTEL_854 0x358E
#define PCI_DEVICE_ID_INTEL_865G 0x2572
#define PCI_DEVICE_ID_INTEL_915G 0x2582
#define PCI_DEVICE_ID_INTEL_915GM 0x2592
@@ -154,6 +155,7 @@
INTEL_85XGM,
INTEL_852GM,
INTEL_852GME,
+ INTEL_854,
INTEL_855GM,
INTEL_855GME,
INTEL_865G,
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index b306549..487f2be 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -156,6 +156,7 @@
switch(dinfo->chipset) {
case INTEL_830M:
case INTEL_845G:
+ case INTEL_854:
case INTEL_855GM:
case INTEL_865G:
dinfo->output[i].type = INTELFB_OUTPUT_DVO;
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 6d8e541..ace14fe 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -182,6 +182,7 @@
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G },
diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 8b26b27..0689f97 100644
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -84,6 +84,11 @@
dinfo->mobile = 0;
dinfo->pll_index = PLLS_I8xx;
return 0;
+ case PCI_DEVICE_ID_INTEL_854:
+ dinfo->mobile = 1;
+ dinfo->name = "Intel(R) 854";
+ dinfo->chipset = INTEL_854;
+ return 0;
case PCI_DEVICE_ID_INTEL_85XGM:
tmp = 0;
dinfo->mobile = 1;
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index 4dcec48..c3fad34 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -45,11 +45,11 @@
static const struct svga_fb_format s3fb_formats[] = {
{ 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
+ { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 0,
FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 1,
+ { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 1,
FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 8, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
+ { 8, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 4, 8},
{16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0,
FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index fad58cf..10ddad8 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -199,16 +199,20 @@
extern void (*sa1100fb_backlight_power)(int on);
extern void (*sa1100fb_lcd_power)(int on);
-/*
- * IMHO this looks wrong. In 8BPP, length should be 8.
- */
-static struct sa1100fb_rgb rgb_8 = {
+static struct sa1100fb_rgb rgb_4 = {
.red = { .offset = 0, .length = 4, },
.green = { .offset = 0, .length = 4, },
.blue = { .offset = 0, .length = 4, },
.transp = { .offset = 0, .length = 0, },
};
+static struct sa1100fb_rgb rgb_8 = {
+ .red = { .offset = 0, .length = 8, },
+ .green = { .offset = 0, .length = 8, },
+ .blue = { .offset = 0, .length = 8, },
+ .transp = { .offset = 0, .length = 0, },
+};
+
static struct sa1100fb_rgb def_rgb_16 = {
.red = { .offset = 11, .length = 5, },
.green = { .offset = 5, .length = 6, },
@@ -613,7 +617,7 @@
DPRINTK("var->bits_per_pixel=%d\n", var->bits_per_pixel);
switch (var->bits_per_pixel) {
case 4:
- rgbidx = RGB_8;
+ rgbidx = RGB_4;
break;
case 8:
rgbidx = RGB_8;
@@ -1382,6 +1386,7 @@
fbi->fb.monspecs = monspecs;
fbi->fb.pseudo_palette = (fbi + 1);
+ fbi->rgb[RGB_4] = &rgb_4;
fbi->rgb[RGB_8] = &rgb_8;
fbi->rgb[RGB_16] = &def_rgb_16;
diff --git a/drivers/video/sa1100fb.h b/drivers/video/sa1100fb.h
index 86831db..1c3b459 100644
--- a/drivers/video/sa1100fb.h
+++ b/drivers/video/sa1100fb.h
@@ -57,9 +57,10 @@
unsigned long lccr3;
};
-#define RGB_8 (0)
-#define RGB_16 (1)
-#define NR_RGB 2
+#define RGB_4 (0)
+#define RGB_8 (1)
+#define RGB_16 (2)
+#define NR_RGB 3
struct sa1100fb_info {
struct fb_info fb;
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 346d645..7e17ee9 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1129,7 +1129,7 @@
switch(var->bits_per_pixel) {
case 8:
var->red.offset = var->green.offset = var->blue.offset = 0;
- var->red.length = var->green.length = var->blue.length = 6;
+ var->red.length = var->green.length = var->blue.length = 8;
break;
case 16:
var->red.offset = 11;
diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c
index a439159..89158bc 100644
--- a/drivers/video/skeletonfb.c
+++ b/drivers/video/skeletonfb.c
@@ -308,9 +308,11 @@
* color depth = SUM(var->{color}.length)
*
* Pseudocolor:
- * var->{color}.offset is 0
- * var->{color}.length contains width of DAC or the number of unique
- * colors available (color depth)
+ * var->{color}.offset is 0 unless the palette index takes less than
+ * bits_per_pixel bits and is stored in the upper
+ * bits of the pixel value
+ * var->{color}.length is set so that 1 << length is the number of
+ * available palette entries
* pseudo_palette is not used
* RAMDAC[X] is programmed to (red, green, blue)
* color depth = var->{color}.length
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 0b370ae..421770b 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -55,6 +55,7 @@
static u16 maxhf __devinitdata; /* maximum horizontal frequency */
static u16 vbemode __devinitdata; /* force use of a specific VBE mode */
static char *mode_option __devinitdata;
+static u8 dac_width = 6;
static struct uvesafb_ktask *uvfb_tasks[UVESAFB_TASKS_MAX];
static DEFINE_MUTEX(uvfb_lock);
@@ -303,22 +304,10 @@
var->blue.offset = 0;
var->transp.offset = 0;
- /*
- * We're assuming that we can switch the DAC to 8 bits. If
- * this proves to be incorrect, we'll update the fields
- * later in set_par().
- */
- if (par->vbe_ib.capabilities & VBE_CAP_CAN_SWITCH_DAC) {
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- var->transp.length = 0;
- } else {
- var->red.length = 6;
- var->green.length = 6;
- var->blue.length = 6;
- var->transp.length = 0;
- }
+ var->red.length = 8;
+ var->green.length = 8;
+ var->blue.length = 8;
+ var->transp.length = 0;
}
}
@@ -1006,7 +995,7 @@
struct fb_info *info)
{
struct uvesafb_pal_entry entry;
- int shift = 16 - info->var.green.length;
+ int shift = 16 - dac_width;
int err = 0;
if (regno >= info->cmap.len)
@@ -1055,7 +1044,7 @@
static int uvesafb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
{
struct uvesafb_pal_entry *entries;
- int shift = 16 - info->var.green.length;
+ int shift = 16 - dac_width;
int i, err = 0;
if (info->var.bits_per_pixel == 8) {
@@ -1317,13 +1306,9 @@
err = uvesafb_exec(task);
if (err || (task->t.regs.eax & 0xffff) != 0x004f ||
((task->t.regs.ebx & 0xff00) >> 8) != 8) {
- /*
- * We've failed to set the DAC palette format -
- * time to correct var.
- */
- info->var.red.length = 6;
- info->var.green.length = 6;
- info->var.blue.length = 6;
+ dac_width = 6;
+ } else {
+ dac_width = 8;
}
}
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index cc919ae..050d432 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -318,13 +318,16 @@
* {hardwarespecific} contains width of RAMDAC
* cmap[X] is programmed to (X << red.offset) | (X << green.offset) | (X << blue.offset)
* RAMDAC[X] is programmed to (red, green, blue)
- *
+ *
* Pseudocolor:
- * uses offset = 0 && length = RAMDAC register width.
- * var->{color}.offset is 0
- * var->{color}.length contains widht of DAC
+ * var->{color}.offset is 0 unless the palette index takes less than
+ * bits_per_pixel bits and is stored in the upper
+ * bits of the pixel value
+ * var->{color}.length is set so that 1 << length is the number of available
+ * palette entries
* cmap is not used
* RAMDAC[X] is programmed to (red, green, blue)
+ *
* Truecolor:
* does not use DAC. Usually 3 are present.
* var->{color}.offset contains start of bitfield
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 6302414..5eb8f21 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -240,8 +240,6 @@
To compile this driver as a module, choose M here: the
module will be called orion5x_wdt.
-# ARM26 Architecture
-
# AVR32 Architecture
config AT32AP700X_WDT
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 806b3eb..7f8c56b 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -42,8 +42,6 @@
obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
obj-$(CONFIG_ORION5X_WATCHDOG) += orion5x_wdt.o
-# ARM26 Architecture
-
# AVR32 Architecture
obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index e35d545..29e52c2 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -197,7 +197,7 @@
.fops = &at91wdt_fops,
};
-static int __init at91wdt_probe(struct platform_device *pdev)
+static int __devinit at91wdt_probe(struct platform_device *pdev)
{
int res;
@@ -214,7 +214,7 @@
return 0;
}
-static int __exit at91wdt_remove(struct platform_device *pdev)
+static int __devexit at91wdt_remove(struct platform_device *pdev)
{
int res;
@@ -252,7 +252,7 @@
static struct platform_driver at91wdt_driver = {
.probe = at91wdt_probe,
- .remove = __exit_p(at91wdt_remove),
+ .remove = __devexit_p(at91wdt_remove),
.shutdown = at91wdt_shutdown,
.suspend = at91wdt_suspend,
.resume = at91wdt_resume,
diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c
index 2dbe835..7ba0b11 100644
--- a/drivers/watchdog/i6300esb.c
+++ b/drivers/watchdog/i6300esb.c
@@ -52,10 +52,10 @@
#define ESB_LOCK_REG 0x68 /* WDT lock register */
/* Memory mapped registers */
-#define ESB_TIMER1_REG BASEADDR + 0x00 /* Timer1 value after each reset */
-#define ESB_TIMER2_REG BASEADDR + 0x04 /* Timer2 value after each reset */
-#define ESB_GINTSR_REG BASEADDR + 0x08 /* General Interrupt Status Register */
-#define ESB_RELOAD_REG BASEADDR + 0x0c /* Reload register */
+#define ESB_TIMER1_REG (BASEADDR + 0x00)/* Timer1 value after each reset */
+#define ESB_TIMER2_REG (BASEADDR + 0x04)/* Timer2 value after each reset */
+#define ESB_GINTSR_REG (BASEADDR + 0x08)/* General Interrupt Status Register */
+#define ESB_RELOAD_REG (BASEADDR + 0x0c)/* Reload register */
/* Lock register bits */
#define ESB_WDT_FUNC (0x01 << 2) /* Watchdog functionality */
@@ -68,6 +68,7 @@
#define ESB_WDT_INTTYPE (0x11 << 0) /* Interrupt type on timer1 timeout */
/* Reload register bits */
+#define ESB_WDT_TIMEOUT (0x01 << 9) /* Watchdog timed out */
#define ESB_WDT_RELOAD (0x01 << 8) /* prevent timeout */
/* Magic constants */
@@ -87,7 +88,6 @@
/* 30 sec default heartbeat (1 < heartbeat < 2*1023) */
#define WATCHDOG_HEARTBEAT 30
static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
-
module_param(heartbeat, int, 0);
MODULE_PARM_DESC(heartbeat,
"Watchdog heartbeat in seconds. (1<heartbeat<2046, default="
@@ -123,7 +123,7 @@
esb_unlock_registers();
writew(ESB_WDT_RELOAD, ESB_RELOAD_REG);
/* Enable or Enable + Lock? */
- val = 0x02 | (nowayout ? 0x01 : 0x00);
+ val = ESB_WDT_ENABLE | (nowayout ? ESB_WDT_LOCK : 0x00);
pci_write_config_byte(esb_pci, ESB_LOCK_REG, val);
spin_unlock(&esb_lock);
return 0;
@@ -143,7 +143,7 @@
spin_unlock(&esb_lock);
/* Returns 0 if the timer was disabled, non-zero otherwise */
- return (val & 0x01);
+ return val & ESB_WDT_ENABLE;
}
static void esb_timer_keepalive(void)
@@ -190,18 +190,6 @@
return 0;
}
-static int esb_timer_read(void)
-{
- u32 count;
-
- /* This isn't documented, and doesn't take into
- * acount which stage is running, but it looks
- * like a 20 bit count down, so we might as well report it.
- */
- pci_read_config_dword(esb_pci, 0x64, &count);
- return (int)count;
-}
-
/*
* /dev/watchdog handling
*/
@@ -282,7 +270,7 @@
sizeof(ident)) ? -EFAULT : 0;
case WDIOC_GETSTATUS:
- return put_user(esb_timer_read(), p);
+ return put_user(0, p);
case WDIOC_GETBOOTSTATUS:
return put_user(triggered, p);
@@ -362,8 +350,6 @@
static unsigned char __devinit esb_getdevice(void)
{
- u8 val1;
- unsigned short val2;
/*
* Find the PCI device
*/
@@ -371,66 +357,79 @@
esb_pci = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_ESB_9, NULL);
- if (esb_pci) {
- if (pci_enable_device(esb_pci)) {
- printk(KERN_ERR PFX "failed to enable device\n");
- goto err_devput;
- }
+ if (!esb_pci)
+ return 0;
- if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
- printk(KERN_ERR PFX "failed to request region\n");
- goto err_disable;
- }
+ if (pci_enable_device(esb_pci)) {
+ printk(KERN_ERR PFX "failed to enable device\n");
+ goto err_devput;
+ }
- BASEADDR = pci_ioremap_bar(esb_pci, 0);
- if (BASEADDR == NULL) {
- /* Something's wrong here, BASEADDR has to be set */
- printk(KERN_ERR PFX "failed to get BASEADDR\n");
- goto err_release;
- }
+ if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
+ printk(KERN_ERR PFX "failed to request region\n");
+ goto err_disable;
+ }
- /*
- * The watchdog has two timers, it can be setup so that the
- * expiry of timer1 results in an interrupt and the expiry of
- * timer2 results in a reboot. We set it to not generate
- * any interrupts as there is not much we can do with it
- * right now.
- *
- * We also enable reboots and set the timer frequency to
- * the PCI clock divided by 2^15 (approx 1KHz).
- */
- pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
+ BASEADDR = pci_ioremap_bar(esb_pci, 0);
+ if (BASEADDR == NULL) {
+ /* Something's wrong here, BASEADDR has to be set */
+ printk(KERN_ERR PFX "failed to get BASEADDR\n");
+ goto err_release;
+ }
- /* Check that the WDT isn't already locked */
- pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
- if (val1 & ESB_WDT_LOCK)
- printk(KERN_WARNING PFX "nowayout already set\n");
-
- /* Set the timer to watchdog mode and disable it for now */
- pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
-
- /* Check if the watchdog was previously triggered */
- esb_unlock_registers();
- val2 = readw(ESB_RELOAD_REG);
- triggered = (val2 & (0x01 << 9) >> 9);
-
- /* Reset trigger flag and timers */
- esb_unlock_registers();
- writew((0x11 << 8), ESB_RELOAD_REG);
-
- /* Done */
- return 1;
+ /* Done */
+ return 1;
err_release:
- pci_release_region(esb_pci, 0);
+ pci_release_region(esb_pci, 0);
err_disable:
- pci_disable_device(esb_pci);
+ pci_disable_device(esb_pci);
err_devput:
- pci_dev_put(esb_pci);
- }
+ pci_dev_put(esb_pci);
return 0;
}
+static void __devinit esb_initdevice(void)
+{
+ u8 val1;
+ u16 val2;
+
+ /*
+ * Config register:
+ * Bit 5 : 0 = Enable WDT_OUTPUT
+ * Bit 2 : 0 = set the timer frequency to the PCI clock
+ * divided by 2^15 (approx 1KHz).
+ * Bits 1:0 : 11 = WDT_INT_TYPE Disabled.
+ * The watchdog has two timers, it can be setup so that the
+ * expiry of timer1 results in an interrupt and the expiry of
+ * timer2 results in a reboot. We set it to not generate
+ * any interrupts as there is not much we can do with it
+ * right now.
+ */
+ pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
+
+ /* Check that the WDT isn't already locked */
+ pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
+ if (val1 & ESB_WDT_LOCK)
+ printk(KERN_WARNING PFX "nowayout already set\n");
+
+ /* Set the timer to watchdog mode and disable it for now */
+ pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
+
+ /* Check if the watchdog was previously triggered */
+ esb_unlock_registers();
+ val2 = readw(ESB_RELOAD_REG);
+ if (val2 & ESB_WDT_TIMEOUT)
+ triggered = WDIOF_CARDRESET;
+
+ /* Reset WDT_TIMEOUT flag and timers */
+ esb_unlock_registers();
+ writew((ESB_WDT_TIMEOUT | ESB_WDT_RELOAD), ESB_RELOAD_REG);
+
+ /* And set the correct timeout value */
+ esb_timer_set_heartbeat(heartbeat);
+}
+
static int __devinit esb_probe(struct platform_device *dev)
{
int ret;
@@ -441,13 +440,17 @@
/* Check that the heartbeat value is within it's range;
if not reset to the default */
- if (esb_timer_set_heartbeat(heartbeat)) {
- esb_timer_set_heartbeat(WATCHDOG_HEARTBEAT);
+ if (heartbeat < 0x1 || heartbeat > 2 * 0x03ff) {
+ heartbeat = WATCHDOG_HEARTBEAT;
printk(KERN_INFO PFX
"heartbeat value must be 1<heartbeat<2046, using %d\n",
heartbeat);
}
+ /* Initialize the watchdog and make sure it does not run */
+ esb_initdevice();
+
+ /* Register the watchdog so that userspace has access to it */
ret = misc_register(&esb_miscdev);
if (ret != 0) {
printk(KERN_ERR PFX
@@ -455,7 +458,6 @@
WATCHDOG_MINOR, ret);
goto err_unmap;
}
- esb_timer_stop();
printk(KERN_INFO PFX
"initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n",
BASEADDR, heartbeat, nowayout);
@@ -463,11 +465,8 @@
err_unmap:
iounmap(BASEADDR);
-/* err_release: */
pci_release_region(esb_pci, 0);
-/* err_disable: */
pci_disable_device(esb_pci);
-/* err_devput: */
pci_dev_put(esb_pci);
return ret;
}
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 74c92d3..ae38321 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -221,7 +221,7 @@
.fops = &ks8695wdt_fops,
};
-static int __init ks8695wdt_probe(struct platform_device *pdev)
+static int __devinit ks8695wdt_probe(struct platform_device *pdev)
{
int res;
@@ -238,7 +238,7 @@
return 0;
}
-static int __exit ks8695wdt_remove(struct platform_device *pdev)
+static int __devexit ks8695wdt_remove(struct platform_device *pdev)
{
int res;
@@ -276,7 +276,7 @@
static struct platform_driver ks8695wdt_driver = {
.probe = ks8695wdt_probe,
- .remove = __exit_p(ks8695wdt_remove),
+ .remove = __devexit_p(ks8695wdt_remove),
.shutdown = ks8695wdt_shutdown,
.suspend = ks8695wdt_suspend,
.resume = ks8695wdt_resume,
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index aa5ad6e..f271385 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -258,7 +258,7 @@
.release = omap_wdt_release,
};
-static int __init omap_wdt_probe(struct platform_device *pdev)
+static int __devinit omap_wdt_probe(struct platform_device *pdev)
{
struct resource *res, *mem;
struct omap_wdt_dev *wdev;
@@ -367,7 +367,7 @@
omap_wdt_disable(wdev);
}
-static int omap_wdt_remove(struct platform_device *pdev)
+static int __devexit omap_wdt_remove(struct platform_device *pdev)
{
struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -426,7 +426,7 @@
static struct platform_driver omap_wdt_driver = {
.probe = omap_wdt_probe,
- .remove = omap_wdt_remove,
+ .remove = __devexit_p(omap_wdt_remove),
.shutdown = omap_wdt_shutdown,
.suspend = omap_wdt_suspend,
.resume = omap_wdt_resume,
diff --git a/drivers/watchdog/orion5x_wdt.c b/drivers/watchdog/orion5x_wdt.c
index e81441f..7529616 100644
--- a/drivers/watchdog/orion5x_wdt.c
+++ b/drivers/watchdog/orion5x_wdt.c
@@ -42,7 +42,17 @@
static unsigned long wdt_status;
static spinlock_t wdt_lock;
-static void wdt_enable(void)
+static void orion5x_wdt_ping(void)
+{
+ spin_lock(&wdt_lock);
+
+ /* Reload watchdog duration */
+ writel(wdt_tclk * heartbeat, WDT_VAL);
+
+ spin_unlock(&wdt_lock);
+}
+
+static void orion5x_wdt_enable(void)
{
u32 reg;
@@ -69,7 +79,7 @@
spin_unlock(&wdt_lock);
}
-static void wdt_disable(void)
+static void orion5x_wdt_disable(void)
{
u32 reg;
@@ -101,7 +111,7 @@
if (test_and_set_bit(WDT_IN_USE, &wdt_status))
return -EBUSY;
clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
- wdt_enable();
+ orion5x_wdt_enable();
return nonseekable_open(inode, file);
}
@@ -122,18 +132,28 @@
set_bit(WDT_OK_TO_CLOSE, &wdt_status);
}
}
- wdt_enable();
+ orion5x_wdt_ping();
}
return len;
}
-static struct watchdog_info ident = {
+static int orion5x_wdt_settimeout(int new_time)
+{
+ if ((new_time <= 0) || (new_time > wdt_max_duration))
+ return -EINVAL;
+
+ /* Set new watchdog time to be used when
+ * orion5x_wdt_enable() or orion5x_wdt_ping() is called. */
+ heartbeat = new_time;
+ return 0;
+}
+
+static const struct watchdog_info ident = {
.options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
WDIOF_KEEPALIVEPING,
.identity = "Orion5x Watchdog",
};
-
static long orion5x_wdt_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
@@ -152,7 +172,7 @@
break;
case WDIOC_KEEPALIVE:
- wdt_enable();
+ orion5x_wdt_ping();
ret = 0;
break;
@@ -161,12 +181,11 @@
if (ret)
break;
- if (time <= 0 || time > wdt_max_duration) {
+ if (orion5x_wdt_settimeout(time)) {
ret = -EINVAL;
break;
}
- heartbeat = time;
- wdt_enable();
+ orion5x_wdt_ping();
/* Fall through */
case WDIOC_GETTIMEOUT:
@@ -187,7 +206,7 @@
static int orion5x_wdt_release(struct inode *inode, struct file *file)
{
if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
- wdt_disable();
+ orion5x_wdt_disable();
else
printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
"timer will not stop\n");
@@ -230,7 +249,7 @@
orion5x_wdt_miscdev.parent = &pdev->dev;
wdt_max_duration = WDT_MAX_CYCLE_COUNT / wdt_tclk;
- if (heartbeat <= 0 || heartbeat > wdt_max_duration)
+ if (orion5x_wdt_settimeout(heartbeat))
heartbeat = wdt_max_duration;
ret = misc_register(&orion5x_wdt_miscdev);
@@ -247,7 +266,7 @@
int ret;
if (test_bit(WDT_IN_USE, &wdt_status)) {
- wdt_disable();
+ orion5x_wdt_disable();
clear_bit(WDT_IN_USE, &wdt_status);
}
@@ -258,9 +277,16 @@
return ret;
}
+static void orion5x_wdt_shutdown(struct platform_device *pdev)
+{
+ if (test_bit(WDT_IN_USE, &wdt_status))
+ orion5x_wdt_disable();
+}
+
static struct platform_driver orion5x_wdt_driver = {
.probe = orion5x_wdt_probe,
.remove = __devexit_p(orion5x_wdt_remove),
+ .shutdown = orion5x_wdt_shutdown,
.driver = {
.owner = THIS_MODULE,
.name = "orion5x_wdt",
@@ -285,10 +311,11 @@
MODULE_DESCRIPTION("Orion5x Processor Watchdog");
module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds");
+MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index 5f54c01..bdfd584 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -21,29 +21,41 @@
set_cpu_present(cpu, false);
}
-static void vcpu_hotplug(unsigned int cpu)
+static int vcpu_online(unsigned int cpu)
{
int err;
char dir[32], state[32];
- if (!cpu_possible(cpu))
- return;
-
sprintf(dir, "cpu/%u", cpu);
err = xenbus_scanf(XBT_NIL, dir, "availability", "%s", state);
if (err != 1) {
printk(KERN_ERR "XENBUS: Unable to read cpu state\n");
- return;
+ return err;
}
- if (strcmp(state, "online") == 0) {
+ if (strcmp(state, "online") == 0)
+ return 1;
+ else if (strcmp(state, "offline") == 0)
+ return 0;
+
+ printk(KERN_ERR "XENBUS: unknown state(%s) on CPU%d\n", state, cpu);
+ return -EINVAL;
+}
+static void vcpu_hotplug(unsigned int cpu)
+{
+ if (!cpu_possible(cpu))
+ return;
+
+ switch (vcpu_online(cpu)) {
+ case 1:
enable_hotplug_cpu(cpu);
- } else if (strcmp(state, "offline") == 0) {
+ break;
+ case 0:
(void)cpu_down(cpu);
disable_hotplug_cpu(cpu);
- } else {
- printk(KERN_ERR "XENBUS: unknown state(%s) on CPU%d\n",
- state, cpu);
+ break;
+ default:
+ break;
}
}
@@ -64,12 +76,20 @@
static int setup_cpu_watcher(struct notifier_block *notifier,
unsigned long event, void *data)
{
+ int cpu;
static struct xenbus_watch cpu_watch = {
.node = "cpu",
.callback = handle_vcpu_hotplug_event};
(void)register_xenbus_watch(&cpu_watch);
+ for_each_possible_cpu(cpu) {
+ if (vcpu_online(cpu) == 0) {
+ (void)cpu_down(cpu);
+ cpu_clear(cpu, cpu_present_map);
+ }
+ }
+
return NOTIFY_DONE;
}
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 0d61db1..4b5b848 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -62,14 +62,15 @@
gnttab_resume();
xen_mm_unpin_all();
- sysdev_resume();
-
if (!*cancelled) {
xen_irq_resume();
xen_console_resume();
xen_timer_resume();
}
+ sysdev_resume();
+ device_power_up(PMSG_RESUME);
+
return 0;
}
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b43b9556..acf6788 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -590,9 +590,8 @@
if (depth == 0)
return (err);
-reread:
- partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+ partial = ext2_get_branch(inode, depth, offsets, chain, &err);
/* Simplest case - block found, no allocation needed */
if (!partial) {
first_block = le32_to_cpu(chain[depth - 1].key);
@@ -602,15 +601,16 @@
while (count < maxblocks && count <= blocks_to_boundary) {
ext2_fsblk_t blk;
- if (!verify_chain(chain, partial)) {
+ if (!verify_chain(chain, chain + depth - 1)) {
/*
* Indirect block might be removed by
* truncate while we were reading it.
* Handling of that case: forget what we've
* got now, go to reread.
*/
+ err = -EAGAIN;
count = 0;
- goto changed;
+ break;
}
blk = le32_to_cpu(*(chain[depth-1].p + count));
if (blk == first_block + count)
@@ -618,7 +618,8 @@
else
break;
}
- goto got_it;
+ if (err != -EAGAIN)
+ goto got_it;
}
/* Next simple case - plain lookup or failed read of indirect block */
@@ -626,6 +627,33 @@
goto cleanup;
mutex_lock(&ei->truncate_mutex);
+ /*
+ * If the indirect block is missing while we are reading
+ * the chain(ext3_get_branch() returns -EAGAIN err), or
+ * if the chain has been changed after we grab the semaphore,
+ * (either because another process truncated this branch, or
+ * another get_block allocated this branch) re-grab the chain to see if
+ * the request block has been allocated or not.
+ *
+ * Since we already block the truncate/other get_block
+ * at this point, we will have the current copy of the chain when we
+ * splice the branch into the tree.
+ */
+ if (err == -EAGAIN || !verify_chain(chain, partial)) {
+ while (partial > chain) {
+ brelse(partial->bh);
+ partial--;
+ }
+ partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+ if (!partial) {
+ count++;
+ mutex_unlock(&ei->truncate_mutex);
+ if (err)
+ goto cleanup;
+ clear_buffer_new(bh_result);
+ goto got_it;
+ }
+ }
/*
* Okay, we need to do block allocation. Lazily initialize the block
@@ -683,12 +711,6 @@
partial--;
}
return err;
-changed:
- while (partial > chain) {
- brelse(partial->bh);
- partial--;
- }
- goto reread;
}
int ext2_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create)
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 9435dda..a1cbff2 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -70,6 +70,10 @@
BUG();
return 0;
}
+
+ if (!tree)
+ return 0;
+
if (tree->node_size >= PAGE_CACHE_SIZE) {
nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
spin_lock(&tree->hash_lock);
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 36ca2e1..7b6165f 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -349,6 +349,7 @@
if (HFS_SB(sb)->nls_disk)
unload_nls(HFS_SB(sb)->nls_disk);
+ free_pages((unsigned long)HFS_SB(sb)->bitmap, PAGE_SIZE < 8192 ? 1 : 0);
kfree(HFS_SB(sb));
sb->s_fs_info = NULL;
}
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index c7bd649..3e9afc2 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -55,6 +55,25 @@
* need do nothing.
* RevokeValid set, Revoked set:
* buffer has been revoked.
+ *
+ * Locking rules:
+ * We keep two hash tables of revoke records. One hashtable belongs to the
+ * running transaction (is pointed to by journal->j_revoke), the other one
+ * belongs to the committing transaction. Accesses to the second hash table
+ * happen only from the kjournald and no other thread touches this table. Also
+ * journal_switch_revoke_table() which switches which hashtable belongs to the
+ * running and which to the committing transaction is called only from
+ * kjournald. Therefore we need no locks when accessing the hashtable belonging
+ * to the committing transaction.
+ *
+ * All users operating on the hash table belonging to the running transaction
+ * have a handle to the transaction. Therefore they are safe from kjournald
+ * switching hash tables under them. For operations on the lists of entries in
+ * the hash table j_revoke_lock is used.
+ *
+ * Finally, also replay code uses the hash tables but at this moment noone else
+ * can touch them (filesystem isn't mounted yet) and hence no locking is
+ * needed.
*/
#ifndef __KERNEL__
@@ -402,8 +421,6 @@
* the second time we would still have a pending revoke to cancel. So,
* do not trust the Revoked bit on buffers unless RevokeValid is also
* set.
- *
- * The caller must have the journal locked.
*/
int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
{
@@ -481,10 +498,7 @@
/*
* Write revoke records to the journal for all entries in the current
* revoke hash, deleting the entries as we go.
- *
- * Called with the journal lock held.
*/
-
void journal_write_revoke_records(journal_t *journal,
transaction_t *transaction)
{
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c13f673..7ec89fc 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -153,23 +153,6 @@
}
/*
- * Schedule IO completion handling on a xfsdatad if this was
- * the final hold on this ioend. If we are asked to wait,
- * flush the workqueue.
- */
-STATIC void
-xfs_finish_ioend(
- xfs_ioend_t *ioend,
- int wait)
-{
- if (atomic_dec_and_test(&ioend->io_remaining)) {
- queue_work(xfsdatad_workqueue, &ioend->io_work);
- if (wait)
- flush_workqueue(xfsdatad_workqueue);
- }
-}
-
-/*
* We're now finished for good with this ioend structure.
* Update the page state via the associated buffer_heads,
* release holds on the inode and bio, and finally free
@@ -310,6 +293,27 @@
}
/*
+ * Schedule IO completion handling on a xfsdatad if this was
+ * the final hold on this ioend. If we are asked to wait,
+ * flush the workqueue.
+ */
+STATIC void
+xfs_finish_ioend(
+ xfs_ioend_t *ioend,
+ int wait)
+{
+ if (atomic_dec_and_test(&ioend->io_remaining)) {
+ struct workqueue_struct *wq = xfsdatad_workqueue;
+ if (ioend->io_work.func == xfs_end_bio_unwritten)
+ wq = xfsconvertd_workqueue;
+
+ queue_work(wq, &ioend->io_work);
+ if (wait)
+ flush_workqueue(wq);
+ }
+}
+
+/*
* Allocate and initialise an IO completion structure.
* We need to track unwritten extent write completion here initially.
* We'll need to extend this for updating the ondisk inode size later
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 1dd5288..221b3e6 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -19,6 +19,7 @@
#define __XFS_AOPS_H__
extern struct workqueue_struct *xfsdatad_workqueue;
+extern struct workqueue_struct *xfsconvertd_workqueue;
extern mempool_t *xfs_ioend_pool;
/*
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index aa1016b..e28800a 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -51,6 +51,7 @@
static struct workqueue_struct *xfslogd_workqueue;
struct workqueue_struct *xfsdatad_workqueue;
+struct workqueue_struct *xfsconvertd_workqueue;
#ifdef XFS_BUF_TRACE
void
@@ -1775,6 +1776,7 @@
xfs_buf_t *bp, *n;
int pincount = 0;
+ xfs_buf_runall_queues(xfsconvertd_workqueue);
xfs_buf_runall_queues(xfsdatad_workqueue);
xfs_buf_runall_queues(xfslogd_workqueue);
@@ -1831,9 +1833,15 @@
if (!xfsdatad_workqueue)
goto out_destroy_xfslogd_workqueue;
+ xfsconvertd_workqueue = create_workqueue("xfsconvertd");
+ if (!xfsconvertd_workqueue)
+ goto out_destroy_xfsdatad_workqueue;
+
register_shrinker(&xfs_buf_shake);
return 0;
+ out_destroy_xfsdatad_workqueue:
+ destroy_workqueue(xfsdatad_workqueue);
out_destroy_xfslogd_workqueue:
destroy_workqueue(xfslogd_workqueue);
out_free_buf_zone:
@@ -1849,6 +1857,7 @@
xfs_buf_terminate(void)
{
unregister_shrinker(&xfs_buf_shake);
+ destroy_workqueue(xfsconvertd_workqueue);
destroy_workqueue(xfsdatad_workqueue);
destroy_workqueue(xfslogd_workqueue);
kmem_zone_destroy(xfs_buf_zone);
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 5aeb777..08be36d 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -74,14 +74,14 @@
if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
xfs_iflags_clear(ip, XFS_ITRUNCATED);
- ret = filemap_fdatawrite(mapping);
- if (flags & XFS_B_ASYNC)
- return -ret;
- ret2 = filemap_fdatawait(mapping);
- if (!ret)
- ret = ret2;
+ ret = -filemap_fdatawrite(mapping);
}
- return -ret;
+ if (flags & XFS_B_ASYNC)
+ return ret;
+ ret2 = xfs_wait_on_pages(ip, first, last);
+ if (!ret)
+ ret = ret2;
+ return ret;
}
int
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 7e90daa..9142192 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -751,10 +751,26 @@
goto relock;
}
} else {
+ int enospc = 0;
+ ssize_t ret2 = 0;
+
+write_retry:
xfs_rw_enter_trace(XFS_WRITE_ENTER, xip, (void *)iovp, segs,
*offset, ioflags);
- ret = generic_file_buffered_write(iocb, iovp, segs,
+ ret2 = generic_file_buffered_write(iocb, iovp, segs,
pos, offset, count, ret);
+ /*
+ * if we just got an ENOSPC, flush the inode now we
+ * aren't holding any page locks and retry *once*
+ */
+ if (ret2 == -ENOSPC && !enospc) {
+ error = xfs_flush_pages(xip, 0, -1, 0, FI_NONE);
+ if (error)
+ goto out_unlock_internal;
+ enospc = 1;
+ goto write_retry;
+ }
+ ret = ret2;
}
current->backing_dev_info = NULL;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index a608e72..f7ba766 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -62,12 +62,6 @@
uint32_t first_index = 0;
int error = 0;
int last_error = 0;
- int fflag = XFS_B_ASYNC;
-
- if (flags & SYNC_DELWRI)
- fflag = XFS_B_DELWRI;
- if (flags & SYNC_WAIT)
- fflag = 0; /* synchronous overrides all */
do {
struct inode *inode;
@@ -128,11 +122,23 @@
* If we have to flush data or wait for I/O completion
* we need to hold the iolock.
*/
- if ((flags & SYNC_DELWRI) && VN_DIRTY(inode)) {
- xfs_ilock(ip, XFS_IOLOCK_SHARED);
- lock_flags |= XFS_IOLOCK_SHARED;
- error = xfs_flush_pages(ip, 0, -1, fflag, FI_NONE);
- if (flags & SYNC_IOWAIT)
+ if (flags & SYNC_DELWRI) {
+ if (VN_DIRTY(inode)) {
+ if (flags & SYNC_TRYLOCK) {
+ if (xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
+ lock_flags |= XFS_IOLOCK_SHARED;
+ } else {
+ xfs_ilock(ip, XFS_IOLOCK_SHARED);
+ lock_flags |= XFS_IOLOCK_SHARED;
+ }
+ if (lock_flags & XFS_IOLOCK_SHARED) {
+ error = xfs_flush_pages(ip, 0, -1,
+ (flags & SYNC_WAIT) ? 0
+ : XFS_B_ASYNC,
+ FI_NONE);
+ }
+ }
+ if (VN_CACHED(inode) && (flags & SYNC_IOWAIT))
xfs_ioend_wait(ip);
}
xfs_ilock(ip, XFS_ILOCK_SHARED);
@@ -398,15 +404,17 @@
xfs_syncd_queue_work(
struct xfs_mount *mp,
void *data,
- void (*syncer)(struct xfs_mount *, void *))
+ void (*syncer)(struct xfs_mount *, void *),
+ struct completion *completion)
{
- struct bhv_vfs_sync_work *work;
+ struct xfs_sync_work *work;
- work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP);
+ work = kmem_alloc(sizeof(struct xfs_sync_work), KM_SLEEP);
INIT_LIST_HEAD(&work->w_list);
work->w_syncer = syncer;
work->w_data = data;
work->w_mount = mp;
+ work->w_completion = completion;
spin_lock(&mp->m_sync_lock);
list_add_tail(&work->w_list, &mp->m_sync_list);
spin_unlock(&mp->m_sync_lock);
@@ -420,49 +428,26 @@
* heads, looking about for more room...
*/
STATIC void
-xfs_flush_inode_work(
+xfs_flush_inodes_work(
struct xfs_mount *mp,
void *arg)
{
struct inode *inode = arg;
- filemap_flush(inode->i_mapping);
+ xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK);
+ xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK | SYNC_IOWAIT);
iput(inode);
}
void
-xfs_flush_inode(
+xfs_flush_inodes(
xfs_inode_t *ip)
{
struct inode *inode = VFS_I(ip);
+ DECLARE_COMPLETION_ONSTACK(completion);
igrab(inode);
- xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
- delay(msecs_to_jiffies(500));
-}
-
-/*
- * This is the "bigger hammer" version of xfs_flush_inode_work...
- * (IOW, "If at first you don't succeed, use a Bigger Hammer").
- */
-STATIC void
-xfs_flush_device_work(
- struct xfs_mount *mp,
- void *arg)
-{
- struct inode *inode = arg;
- sync_blockdev(mp->m_super->s_bdev);
- iput(inode);
-}
-
-void
-xfs_flush_device(
- xfs_inode_t *ip)
-{
- struct inode *inode = VFS_I(ip);
-
- igrab(inode);
- xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
- delay(msecs_to_jiffies(500));
+ xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inodes_work, &completion);
+ wait_for_completion(&completion);
xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
}
@@ -497,7 +482,7 @@
{
struct xfs_mount *mp = arg;
long timeleft;
- bhv_vfs_sync_work_t *work, *n;
+ xfs_sync_work_t *work, *n;
LIST_HEAD (tmp);
set_freezable();
@@ -532,6 +517,8 @@
list_del(&work->w_list);
if (work == &mp->m_sync_work)
continue;
+ if (work->w_completion)
+ complete(work->w_completion);
kmem_free(work);
}
}
@@ -545,6 +532,7 @@
{
mp->m_sync_work.w_syncer = xfs_sync_worker;
mp->m_sync_work.w_mount = mp;
+ mp->m_sync_work.w_completion = NULL;
mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd");
if (IS_ERR(mp->m_sync_task))
return -PTR_ERR(mp->m_sync_task);
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index 04f058c..308d5bf 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -21,18 +21,20 @@
struct xfs_mount;
struct xfs_perag;
-typedef struct bhv_vfs_sync_work {
+typedef struct xfs_sync_work {
struct list_head w_list;
struct xfs_mount *w_mount;
void *w_data; /* syncer routine argument */
void (*w_syncer)(struct xfs_mount *, void *);
-} bhv_vfs_sync_work_t;
+ struct completion *w_completion;
+} xfs_sync_work_t;
#define SYNC_ATTR 0x0001 /* sync attributes */
#define SYNC_DELWRI 0x0002 /* look at delayed writes */
#define SYNC_WAIT 0x0004 /* wait for i/o to complete */
#define SYNC_BDFLUSH 0x0008 /* BDFLUSH is calling -- don't block */
#define SYNC_IOWAIT 0x0010 /* wait for all I/O to complete */
+#define SYNC_TRYLOCK 0x0020 /* only try to lock inodes */
int xfs_syncd_init(struct xfs_mount *mp);
void xfs_syncd_stop(struct xfs_mount *mp);
@@ -43,8 +45,7 @@
int xfs_quiesce_data(struct xfs_mount *mp);
void xfs_quiesce_attr(struct xfs_mount *mp);
-void xfs_flush_inode(struct xfs_inode *ip);
-void xfs_flush_device(struct xfs_inode *ip);
+void xfs_flush_inodes(struct xfs_inode *ip);
int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode);
int xfs_reclaim_inodes(struct xfs_mount *mp, int noblock, int mode);
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 478e587..89b81ee 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -69,15 +69,6 @@
ASSERT(!spin_is_locked(&ip->i_flags_lock));
ASSERT(completion_done(&ip->i_flush));
- /*
- * initialise the VFS inode here to get failures
- * out of the way early.
- */
- if (!inode_init_always(mp->m_super, VFS_I(ip))) {
- kmem_zone_free(xfs_inode_zone, ip);
- return NULL;
- }
-
/* initialise the xfs inode */
ip->i_ino = ino;
ip->i_mount = mp;
@@ -113,6 +104,20 @@
#ifdef XFS_DIR2_TRACE
ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
#endif
+ /*
+ * Now initialise the VFS inode. We do this after the xfs_inode
+ * initialisation as internal failures will result in ->destroy_inode
+ * being called and that will pass down through the reclaim path and
+ * free the XFS inode. This path requires the XFS inode to already be
+ * initialised. Hence if this call fails, the xfs_inode has already
+ * been freed and we should not reference it at all in the error
+ * handling.
+ */
+ if (!inode_init_always(mp->m_super, VFS_I(ip)))
+ return NULL;
+
+ /* prevent anyone from using this yet */
+ VFS_I(ip)->i_state = I_NEW|I_LOCK;
return ip;
}
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 08ce723..5aaa2d7 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -338,38 +338,6 @@
}
STATIC int
-xfs_flush_space(
- xfs_inode_t *ip,
- int *fsynced,
- int *ioflags)
-{
- switch (*fsynced) {
- case 0:
- if (ip->i_delayed_blks) {
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_flush_inode(ip);
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- *fsynced = 1;
- } else {
- *ioflags |= BMAPI_SYNC;
- *fsynced = 2;
- }
- return 0;
- case 1:
- *fsynced = 2;
- *ioflags |= BMAPI_SYNC;
- return 0;
- case 2:
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_flush_device(ip);
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- *fsynced = 3;
- return 0;
- }
- return 1;
-}
-
-STATIC int
xfs_cmn_err_fsblock_zero(
xfs_inode_t *ip,
xfs_bmbt_irec_t *imap)
@@ -538,15 +506,9 @@
}
/*
- * If the caller is doing a write at the end of the file,
- * then extend the allocation out to the file system's write
- * iosize. We clean up any extra space left over when the
- * file is closed in xfs_inactive().
- *
- * For sync writes, we are flushing delayed allocate space to
- * try to make additional space available for allocation near
- * the filesystem full boundary - preallocation hurts in that
- * situation, of course.
+ * If the caller is doing a write at the end of the file, then extend the
+ * allocation out to the file system's write iosize. We clean up any extra
+ * space left over when the file is closed in xfs_inactive().
*/
STATIC int
xfs_iomap_eof_want_preallocate(
@@ -565,7 +527,7 @@
int n, error, imaps;
*prealloc = 0;
- if ((ioflag & BMAPI_SYNC) || (offset + count) <= ip->i_size)
+ if ((offset + count) <= ip->i_size)
return 0;
/*
@@ -611,7 +573,7 @@
xfs_extlen_t extsz;
int nimaps;
xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
- int prealloc, fsynced = 0;
+ int prealloc, flushed = 0;
int error;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -627,12 +589,12 @@
extsz = xfs_get_extsz_hint(ip);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
-retry:
error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,
ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
if (error)
return error;
+retry:
if (prealloc) {
aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
@@ -659,15 +621,22 @@
/*
* If bmapi returned us nothing, and if we didn't get back EDQUOT,
- * then we must have run out of space - flush delalloc, and retry..
+ * then we must have run out of space - flush all other inodes with
+ * delalloc blocks and retry without EOF preallocation.
*/
if (nimaps == 0) {
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
ip, offset, count);
- if (xfs_flush_space(ip, &fsynced, &ioflag))
+ if (flushed)
return XFS_ERROR(ENOSPC);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ xfs_flush_inodes(ip);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+ flushed = 1;
error = 0;
+ prealloc = 0;
goto retry;
}
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index a1cc132..fdcf7b8 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -40,8 +40,7 @@
BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */
BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */
BMAPI_MMAP = (1 << 6), /* allocate for mmap write */
- BMAPI_SYNC = (1 << 7), /* sync write to flush delalloc space */
- BMAPI_TRYLOCK = (1 << 8), /* non-blocking request */
+ BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */
} bmapi_flags_t;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f76c6d7..3750f04 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -562,9 +562,8 @@
}
mp->m_log = xlog_alloc_log(mp, log_target, blk_offset, num_bblks);
- if (!mp->m_log) {
- cmn_err(CE_WARN, "XFS: Log allocation failed: No memory!");
- error = ENOMEM;
+ if (IS_ERR(mp->m_log)) {
+ error = -PTR_ERR(mp->m_log);
goto out;
}
@@ -1180,10 +1179,13 @@
xfs_buf_t *bp;
int i;
int iclogsize;
+ int error = ENOMEM;
log = kmem_zalloc(sizeof(xlog_t), KM_MAYFAIL);
- if (!log)
- return NULL;
+ if (!log) {
+ xlog_warn("XFS: Log allocation failed: No memory!");
+ goto out;
+ }
log->l_mp = mp;
log->l_targ = log_target;
@@ -1201,19 +1203,35 @@
log->l_grant_reserve_cycle = 1;
log->l_grant_write_cycle = 1;
+ error = EFSCORRUPTED;
if (xfs_sb_version_hassector(&mp->m_sb)) {
log->l_sectbb_log = mp->m_sb.sb_logsectlog - BBSHIFT;
- ASSERT(log->l_sectbb_log <= mp->m_sectbb_log);
+ if (log->l_sectbb_log < 0 ||
+ log->l_sectbb_log > mp->m_sectbb_log) {
+ xlog_warn("XFS: Log sector size (0x%x) out of range.",
+ log->l_sectbb_log);
+ goto out_free_log;
+ }
+
/* for larger sector sizes, must have v2 or external log */
- ASSERT(log->l_sectbb_log == 0 ||
- log->l_logBBstart == 0 ||
- xfs_sb_version_haslogv2(&mp->m_sb));
- ASSERT(mp->m_sb.sb_logsectlog >= BBSHIFT);
+ if (log->l_sectbb_log != 0 &&
+ (log->l_logBBstart != 0 &&
+ !xfs_sb_version_haslogv2(&mp->m_sb))) {
+ xlog_warn("XFS: log sector size (0x%x) invalid "
+ "for configuration.", log->l_sectbb_log);
+ goto out_free_log;
+ }
+ if (mp->m_sb.sb_logsectlog < BBSHIFT) {
+ xlog_warn("XFS: Log sector log (0x%x) too small.",
+ mp->m_sb.sb_logsectlog);
+ goto out_free_log;
+ }
}
log->l_sectbb_mask = (1 << log->l_sectbb_log) - 1;
xlog_get_iclog_buffer_size(mp, log);
+ error = ENOMEM;
bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
if (!bp)
goto out_free_log;
@@ -1313,7 +1331,8 @@
xfs_buf_free(log->l_xbuf);
out_free_log:
kmem_free(log);
- return NULL;
+out:
+ return ERR_PTR(-error);
} /* xlog_alloc_log */
@@ -2541,18 +2560,19 @@
xlog_ins_ticketq(&log->l_reserve_headq, tic);
xlog_trace_loggrant(log, tic,
"xlog_grant_log_space: sleep 2");
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_grant_log_space: wake 2");
- xlog_grant_push_ail(log->l_mp, need_bytes);
- spin_lock(&log->l_grant_lock);
goto redo;
} else if (tic->t_flags & XLOG_TIC_IN_Q)
xlog_del_ticketq(&log->l_reserve_headq, tic);
@@ -2631,7 +2651,7 @@
* for more free space, otherwise try to get some space for
* this transaction.
*/
-
+ need_bytes = tic->t_unit_res;
if ((ntic = log->l_write_headq)) {
free_bytes = xlog_space_left(log, log->l_grant_write_cycle,
log->l_grant_write_bytes);
@@ -2651,26 +2671,25 @@
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: sleep 1");
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT,
&log->l_grant_lock, s);
/* If we're shutting down, this tic is already
* off the queue */
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: wake 1");
- xlog_grant_push_ail(log->l_mp, tic->t_unit_res);
- spin_lock(&log->l_grant_lock);
}
}
- need_bytes = tic->t_unit_res;
-
redo:
if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
@@ -2680,19 +2699,20 @@
if (free_bytes < need_bytes) {
if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
xlog_ins_ticketq(&log->l_write_headq, tic);
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
/* If we're shutting down, this tic is already off the queue */
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: wake 2");
- xlog_grant_push_ail(log->l_mp, need_bytes);
- spin_lock(&log->l_grant_lock);
goto redo;
} else if (tic->t_flags & XLOG_TIC_IN_Q)
xlog_del_ticketq(&log->l_write_headq, tic);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 7af44ad..d6a6439 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,7 +313,7 @@
#endif
struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
struct task_struct *m_sync_task; /* generalised sync thread */
- bhv_vfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */
+ xfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */
struct list_head m_sync_list; /* sync thread work item list */
spinlock_t m_sync_lock; /* work item list lock */
int m_sync_seq; /* sync thread generation no. */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 7394c7a..19cf90a 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1457,6 +1457,13 @@
error = xfs_trans_reserve(tp, resblks, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);
if (error == ENOSPC) {
+ /* flush outstanding delalloc blocks and retry */
+ xfs_flush_inodes(dp);
+ error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0,
+ XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+ }
+ if (error == ENOSPC) {
+ /* No space at all so try a "no-allocation" reservation */
resblks = 0;
error = xfs_trans_reserve(tp, 0, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 00f45ff..b0e63c6 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -80,56 +80,4 @@
#define DECLARE_PER_CPU(type, name) extern PER_CPU_ATTRIBUTES \
__typeof__(type) per_cpu_var(name)
-/*
- * Optional methods for optimized non-lvalue per-cpu variable access.
- *
- * @var can be a percpu variable or a field of it and its size should
- * equal char, int or long. percpu_read() evaluates to a lvalue and
- * all others to void.
- *
- * These operations are guaranteed to be atomic w.r.t. preemption.
- * The generic versions use plain get/put_cpu_var(). Archs are
- * encouraged to implement single-instruction alternatives which don't
- * require preemption protection.
- */
-#ifndef percpu_read
-# define percpu_read(var) \
- ({ \
- typeof(per_cpu_var(var)) __tmp_var__; \
- __tmp_var__ = get_cpu_var(var); \
- put_cpu_var(var); \
- __tmp_var__; \
- })
-#endif
-
-#define __percpu_generic_to_op(var, val, op) \
-do { \
- get_cpu_var(var) op val; \
- put_cpu_var(var); \
-} while (0)
-
-#ifndef percpu_write
-# define percpu_write(var, val) __percpu_generic_to_op(var, (val), =)
-#endif
-
-#ifndef percpu_add
-# define percpu_add(var, val) __percpu_generic_to_op(var, (val), +=)
-#endif
-
-#ifndef percpu_sub
-# define percpu_sub(var, val) __percpu_generic_to_op(var, (val), -=)
-#endif
-
-#ifndef percpu_and
-# define percpu_and(var, val) __percpu_generic_to_op(var, (val), &=)
-#endif
-
-#ifndef percpu_or
-# define percpu_or(var, val) __percpu_generic_to_op(var, (val), |=)
-#endif
-
-#ifndef percpu_xor
-# define percpu_xor(var, val) __percpu_generic_to_op(var, (val), ^=)
-#endif
-
#endif /* _ASM_GENERIC_PERCPU_H_ */
diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index 35752da..c840719 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -201,7 +201,7 @@
#define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
#define TRAP_BRANCH (__SI_FAULT|3) /* process taken branch trap */
#define TRAP_HWBKPT (__SI_FAULT|4) /* hardware breakpoint/watchpoint */
-#define NSIGTRAP 2
+#define NSIGTRAP 4
/*
* SIGCHLD si_codes
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 2df74eb..9477af0 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -472,6 +472,7 @@
{0x8086, 0x2562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
{0x8086, 0x3582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
{0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
+ {0x8086, 0x358e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
{0, 0, 0}
#define gamma_PCI_IDS \
@@ -533,4 +534,5 @@
{0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
{0x8086, 0xa001, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
{0x8086, 0xa011, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+ {0x8086, 0x35e8, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
{0, 0, 0}
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 4864a43..c302110 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -377,7 +377,21 @@
#define CAP_FOR_EACH_U32(__capi) \
for (__capi = 0; __capi < _KERNEL_CAPABILITY_U32S; ++__capi)
+/*
+ * CAP_FS_MASK and CAP_NFSD_MASKS:
+ *
+ * The fs mask is all the privileges that fsuid==0 historically meant.
+ * At one time in the past, that included CAP_MKNOD and CAP_LINUX_IMMUTABLE.
+ *
+ * It has never meant setting security.* and trusted.* xattrs.
+ *
+ * We could also define fsmask as follows:
+ * 1. CAP_FS_MASK is the privilege to bypass all fs-related DAC permissions
+ * 2. The security.* and trusted.* xattrs are fs-related MAC permissions
+ */
+
# define CAP_FS_MASK_B0 (CAP_TO_MASK(CAP_CHOWN) \
+ | CAP_TO_MASK(CAP_MKNOD) \
| CAP_TO_MASK(CAP_DAC_OVERRIDE) \
| CAP_TO_MASK(CAP_DAC_READ_SEARCH) \
| CAP_TO_MASK(CAP_FOWNER) \
@@ -392,11 +406,12 @@
# define CAP_EMPTY_SET ((kernel_cap_t){{ 0, 0 }})
# define CAP_FULL_SET ((kernel_cap_t){{ ~0, ~0 }})
# define CAP_INIT_EFF_SET ((kernel_cap_t){{ ~CAP_TO_MASK(CAP_SETPCAP), ~0 }})
-# define CAP_FS_SET ((kernel_cap_t){{ CAP_FS_MASK_B0, CAP_FS_MASK_B1 } })
+# define CAP_FS_SET ((kernel_cap_t){{ CAP_FS_MASK_B0 \
+ | CAP_TO_MASK(CAP_LINUX_IMMUTABLE), \
+ CAP_FS_MASK_B1 } })
# define CAP_NFSD_SET ((kernel_cap_t){{ CAP_FS_MASK_B0 \
- | CAP_TO_MASK(CAP_SYS_RESOURCE) \
- | CAP_TO_MASK(CAP_MKNOD), \
- CAP_FS_MASK_B1 } })
+ | CAP_TO_MASK(CAP_SYS_RESOURCE), \
+ CAP_FS_MASK_B1 } })
#endif /* _KERNEL_CAPABILITY_U32S != 2 */
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 096476f..493dedb 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -2,12 +2,19 @@
#define __LINUX_DEBUG_LOCKING_H
#include <linux/kernel.h>
+#include <asm/atomic.h>
struct task_struct;
extern int debug_locks;
extern int debug_locks_silent;
+
+static inline int __debug_locks_off(void)
+{
+ return xchg(&debug_locks, 0);
+}
+
/*
* Generic 'turn off all lock debugging' function:
*/
diff --git a/include/linux/fb.h b/include/linux/fb.h
index f563c50..330c4b1 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -173,8 +173,12 @@
/* Interpretation of offset for color fields: All offsets are from the right,
* inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
* can use the offset as right argument to <<). A pixel afterwards is a bit
- * stream and is written to video memory as that unmodified. This implies
- * big-endian byte order if bits_per_pixel is greater than 8.
+ * stream and is written to video memory as that unmodified.
+ *
+ * For pseudocolor: offset and length should be the same for all color
+ * components. Offset specifies the position of the least significant bit
+ * of the pallette index in a pixel value. Length indicates the number
+ * of available palette entries (i.e. # of entries = 1 << length).
*/
struct fb_bitfield {
__u32 offset; /* beginning of bitfield */
diff --git a/include/linux/fiemap.h b/include/linux/fiemap.h
index 671decb..934e22d 100644
--- a/include/linux/fiemap.h
+++ b/include/linux/fiemap.h
@@ -11,6 +11,8 @@
#ifndef _LINUX_FIEMAP_H
#define _LINUX_FIEMAP_H
+#include <linux/types.h>
+
struct fiemap_extent {
__u64 fe_logical; /* logical offset in bytes for the start of
* the extent from the beginning of the file */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 00ee11e..ad25805 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -274,7 +274,7 @@
* are provided using conventional syntax.
*/
#define I2C_BOARD_INFO(dev_type, dev_addr) \
- .type = (dev_type), .addr = (dev_addr)
+ .type = dev_type, .addr = (dev_addr)
/* Add-on boards should register/unregister their devices; e.g. a board
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dcfb933..d87247d 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -15,19 +15,6 @@
extern struct files_struct init_files;
extern struct fs_struct init_fs;
-#define INIT_KIOCTX(name, which_mm) \
-{ \
- .users = ATOMIC_INIT(1), \
- .dead = 0, \
- .mm = &which_mm, \
- .user_id = 0, \
- .next = NULL, \
- .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
- .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
- .reqs_active = 0U, \
- .max_reqs = ~0U, \
-}
-
#define INIT_MM(name) \
{ \
.mm_rb = RB_ROOT, \
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index ee98cd5..06ba90c 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2514,6 +2514,8 @@
#define PCI_DEVICE_ID_INTEL_IOAT_TBG3 0x3433
#define PCI_DEVICE_ID_INTEL_82830_HB 0x3575
#define PCI_DEVICE_ID_INTEL_82830_CGC 0x3577
+#define PCI_DEVICE_ID_INTEL_82854_HB 0x358c
+#define PCI_DEVICE_ID_INTEL_82854_IG 0x358e
#define PCI_DEVICE_ID_INTEL_82855GM_HB 0x3580
#define PCI_DEVICE_ID_INTEL_82855GM_IG 0x3582
#define PCI_DEVICE_ID_INTEL_E7520_MCH 0x3590
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index ee5615d..cfda2d5 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -168,4 +168,56 @@
#define alloc_percpu(type) (type *)__alloc_percpu(sizeof(type), \
__alignof__(type))
+/*
+ * Optional methods for optimized non-lvalue per-cpu variable access.
+ *
+ * @var can be a percpu variable or a field of it and its size should
+ * equal char, int or long. percpu_read() evaluates to a lvalue and
+ * all others to void.
+ *
+ * These operations are guaranteed to be atomic w.r.t. preemption.
+ * The generic versions use plain get/put_cpu_var(). Archs are
+ * encouraged to implement single-instruction alternatives which don't
+ * require preemption protection.
+ */
+#ifndef percpu_read
+# define percpu_read(var) \
+ ({ \
+ typeof(per_cpu_var(var)) __tmp_var__; \
+ __tmp_var__ = get_cpu_var(var); \
+ put_cpu_var(var); \
+ __tmp_var__; \
+ })
+#endif
+
+#define __percpu_generic_to_op(var, val, op) \
+do { \
+ get_cpu_var(var) op val; \
+ put_cpu_var(var); \
+} while (0)
+
+#ifndef percpu_write
+# define percpu_write(var, val) __percpu_generic_to_op(var, (val), =)
+#endif
+
+#ifndef percpu_add
+# define percpu_add(var, val) __percpu_generic_to_op(var, (val), +=)
+#endif
+
+#ifndef percpu_sub
+# define percpu_sub(var, val) __percpu_generic_to_op(var, (val), -=)
+#endif
+
+#ifndef percpu_and
+# define percpu_and(var, val) __percpu_generic_to_op(var, (val), &=)
+#endif
+
+#ifndef percpu_or
+# define percpu_or(var, val) __percpu_generic_to_op(var, (val), |=)
+#endif
+
+#ifndef percpu_xor
+# define percpu_xor(var, val) __percpu_generic_to_op(var, (val), ^=)
+#endif
+
#endif /* __LINUX_PERCPU_H */
diff --git a/include/linux/rotary_encoder.h b/include/linux/rotary_encoder.h
new file mode 100644
index 0000000..12d63a3
--- /dev/null
+++ b/include/linux/rotary_encoder.h
@@ -0,0 +1,13 @@
+#ifndef __ROTARY_ENCODER_H__
+#define __ROTARY_ENCODER_H__
+
+struct rotary_encoder_platform_data {
+ unsigned int steps;
+ unsigned int axis;
+ unsigned int gpio_a;
+ unsigned int gpio_b;
+ unsigned int inverted_a;
+ unsigned int inverted_b;
+};
+
+#endif /* __ROTARY_ENCODER_H__ */
diff --git a/include/linux/sht15.h b/include/linux/sht15.h
new file mode 100644
index 0000000..046bce0
--- /dev/null
+++ b/include/linux/sht15.h
@@ -0,0 +1,24 @@
+/*
+ * sht15.h - support for the SHT15 Temperature and Humidity Sensor
+ *
+ * Copyright (c) 2009 Jonathan Cameron
+ *
+ * Copyright (c) 2007 Wouter Horre
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/**
+ * struct sht15_platform_data - sht15 connectivity info
+ * @gpio_data: no. of gpio to which bidirectional data line is connected
+ * @gpio_sck: no. of gpio to which the data clock is connected.
+ * @supply_mv: supply voltage in mv. Overridden by regulator if available.
+ **/
+struct sht15_platform_data {
+ int gpio_data;
+ int gpio_sck;
+ int supply_mv;
+};
+
diff --git a/include/linux/spi/ad7879.h b/include/linux/spi/ad7879.h
new file mode 100644
index 0000000..4231104
--- /dev/null
+++ b/include/linux/spi/ad7879.h
@@ -0,0 +1,35 @@
+/* linux/spi/ad7879.h */
+
+/* Touchscreen characteristics vary between boards and models. The
+ * platform_data for the device's "struct device" holds this information.
+ *
+ * It's OK if the min/max values are zero.
+ */
+struct ad7879_platform_data {
+ u16 model; /* 7879 */
+ u16 x_plate_ohms;
+ u16 x_min, x_max;
+ u16 y_min, y_max;
+ u16 pressure_min, pressure_max;
+
+ /* [0..255] 0=OFF Starts at 1=550us and goes
+ * all the way to 9.440ms in steps of 35us.
+ */
+ u8 pen_down_acc_interval;
+ /* [0..15] Starts at 0=128us and goes all the
+ * way to 4.096ms in steps of 128us.
+ */
+ u8 first_conversion_delay;
+ /* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */
+ u8 acquisition_time;
+ /* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */
+ u8 averaging;
+ /* [0..3] Perform X measurements 0 = OFF,
+ * 1 = 4, 2 = 8, 3 = 16 (median > averaging)
+ */
+ u8 median;
+ /* 1 = AUX/VBAT/GPIO set to GPIO Output */
+ u8 gpio_output;
+ /* Initial GPIO pin state (valid if gpio_output = 1) */
+ u8 gpio_default;
+};
diff --git a/include/linux/stringify.h b/include/linux/stringify.h
index 0b43883..841cec8 100644
--- a/include/linux/stringify.h
+++ b/include/linux/stringify.h
@@ -6,7 +6,7 @@
* converts to "bar".
*/
-#define __stringify_1(x) #x
-#define __stringify(x) __stringify_1(x)
+#define __stringify_1(x...) #x
+#define __stringify(x...) __stringify_1(x)
#endif /* !__LINUX_STRINGIFY_H */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index b958425..625e9e4 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -29,7 +29,7 @@
/**
* usb_serial_port: structure for the specific ports of a device.
* @serial: pointer back to the struct usb_serial owner of this port.
- * @tty: pointer to the corresponding tty for this port.
+ * @port: pointer to the corresponding tty_port for this port.
* @lock: spinlock to grab when updating portions of this structure.
* @mutex: mutex used to synchronize serial_open() and serial_close()
* access for this port.
@@ -44,19 +44,22 @@
* @interrupt_out_endpointAddress: endpoint address for the interrupt out pipe
* for this port.
* @bulk_in_buffer: pointer to the bulk in buffer for this port.
+ * @bulk_in_size: the size of the bulk_in_buffer, in bytes.
* @read_urb: pointer to the bulk in struct urb for this port.
* @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
* port.
* @bulk_out_buffer: pointer to the bulk out buffer for this port.
* @bulk_out_size: the size of the bulk_out_buffer, in bytes.
* @write_urb: pointer to the bulk out struct urb for this port.
+ * @write_urb_busy: port`s writing status
* @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
* port.
* @write_wait: a wait_queue_head_t used by the port.
* @work: work queue entry for the line discipline waking up.
- * @open_count: number of times this port has been opened.
* @throttled: nonzero if the read urb is inactive to throttle the device
* @throttle_req: nonzero if the tty wants to throttle us
+ * @console: attached usb serial console
+ * @dev: pointer to the serial device
*
* This structure is used by the usb-serial core and drivers for the specific
* ports of a device.
diff --git a/include/scsi/scsi_scan.h b/include/scsi/scsi_scan.h
new file mode 100644
index 0000000..7889888
--- /dev/null
+++ b/include/scsi/scsi_scan.h
@@ -0,0 +1,11 @@
+#ifndef _SCSI_SCSI_SCAN_H
+#define _SCSI_SCSI_SCAN_H
+
+#ifdef CONFIG_SCSI
+/* drivers/scsi/scsi_scan.c */
+extern int scsi_complete_async_scans(void);
+#else
+static inline int scsi_complete_async_scans(void) { return 0; }
+#endif
+
+#endif /* _SCSI_SCSI_SCAN_H */
diff --git a/include/video/cyblafb.h b/include/video/cyblafb.h
deleted file mode 100644
index d3c1d4e..0000000
--- a/include/video/cyblafb.h
+++ /dev/null
@@ -1,175 +0,0 @@
-
-#ifndef CYBLAFB_DEBUG
-#define CYBLAFB_DEBUG 0
-#endif
-
-#if CYBLAFB_DEBUG
-#define debug(f,a...) printk("%s:" f, __func__ , ## a);
-#else
-#define debug(f,a...)
-#endif
-
-#define output(f, a...) printk("cyblafb: " f, ## a)
-
-#define Kb (1024)
-#define Mb (Kb*Kb)
-
-/* PCI IDS of supported cards temporarily here */
-
-#define CYBERBLADEi1 0x8500
-
-/* these defines are for 'lcd' variable */
-#define LCD_STRETCH 0
-#define LCD_CENTER 1
-#define LCD_BIOS 2
-
-/* display types */
-#define DISPLAY_CRT 0
-#define DISPLAY_FP 1
-
-#define ROP_S 0xCC
-
-#define point(x,y) ((y)<<16|(x))
-
-//
-// Attribute Regs, ARxx, 3c0/3c1
-//
-#define AR00 0x00
-#define AR01 0x01
-#define AR02 0x02
-#define AR03 0x03
-#define AR04 0x04
-#define AR05 0x05
-#define AR06 0x06
-#define AR07 0x07
-#define AR08 0x08
-#define AR09 0x09
-#define AR0A 0x0A
-#define AR0B 0x0B
-#define AR0C 0x0C
-#define AR0D 0x0D
-#define AR0E 0x0E
-#define AR0F 0x0F
-#define AR10 0x10
-#define AR12 0x12
-#define AR13 0x13
-
-//
-// Sequencer Regs, SRxx, 3c4/3c5
-//
-#define SR00 0x00
-#define SR01 0x01
-#define SR02 0x02
-#define SR03 0x03
-#define SR04 0x04
-#define SR0D 0x0D
-#define SR0E 0x0E
-#define SR11 0x11
-#define SR18 0x18
-#define SR19 0x19
-
-//
-//
-//
-#define CR00 0x00
-#define CR01 0x01
-#define CR02 0x02
-#define CR03 0x03
-#define CR04 0x04
-#define CR05 0x05
-#define CR06 0x06
-#define CR07 0x07
-#define CR08 0x08
-#define CR09 0x09
-#define CR0A 0x0A
-#define CR0B 0x0B
-#define CR0C 0x0C
-#define CR0D 0x0D
-#define CR0E 0x0E
-#define CR0F 0x0F
-#define CR10 0x10
-#define CR11 0x11
-#define CR12 0x12
-#define CR13 0x13
-#define CR14 0x14
-#define CR15 0x15
-#define CR16 0x16
-#define CR17 0x17
-#define CR18 0x18
-#define CR19 0x19
-#define CR1A 0x1A
-#define CR1B 0x1B
-#define CR1C 0x1C
-#define CR1D 0x1D
-#define CR1E 0x1E
-#define CR1F 0x1F
-#define CR20 0x20
-#define CR21 0x21
-#define CR27 0x27
-#define CR29 0x29
-#define CR2A 0x2A
-#define CR2B 0x2B
-#define CR2D 0x2D
-#define CR2F 0x2F
-#define CR36 0x36
-#define CR38 0x38
-#define CR39 0x39
-#define CR3A 0x3A
-#define CR55 0x55
-#define CR56 0x56
-#define CR57 0x57
-#define CR58 0x58
-
-//
-//
-//
-
-#define GR00 0x01
-#define GR01 0x01
-#define GR02 0x02
-#define GR03 0x03
-#define GR04 0x04
-#define GR05 0x05
-#define GR06 0x06
-#define GR07 0x07
-#define GR08 0x08
-#define GR0F 0x0F
-#define GR20 0x20
-#define GR23 0x23
-#define GR2F 0x2F
-#define GR30 0x30
-#define GR31 0x31
-#define GR33 0x33
-#define GR52 0x52
-#define GR53 0x53
-#define GR5D 0x5d
-
-
-//
-// Graphics Engine
-//
-#define GEBase 0x2100 // could be mapped elsewhere if we like it
-#define GE00 (GEBase+0x00) // source 1, p 111
-#define GE04 (GEBase+0x04) // source 2, p 111
-#define GE08 (GEBase+0x08) // destination 1, p 111
-#define GE0C (GEBase+0x0C) // destination 2, p 112
-#define GE10 (GEBase+0x10) // right view base & enable, p 112
-#define GE13 (GEBase+0x13) // left view base & enable, p 112
-#define GE18 (GEBase+0x18) // block write start address, p 112
-#define GE1C (GEBase+0x1C) // block write end address, p 112
-#define GE20 (GEBase+0x20) // engine status, p 113
-#define GE24 (GEBase+0x24) // reset all GE pointers
-#define GE44 (GEBase+0x44) // command register, p 126
-#define GE48 (GEBase+0x48) // raster operation, p 127
-#define GE60 (GEBase+0x60) // foreground color, p 128
-#define GE64 (GEBase+0x64) // background color, p 128
-#define GE6C (GEBase+0x6C) // Pattern and Style, p 129, ok
-#define GE9C (GEBase+0x9C) // pixel engine data port, p 125
-#define GEB8 (GEBase+0xB8) // Destination Stride / Buffer Base 0, p 133
-#define GEBC (GEBase+0xBC) // Destination Stride / Buffer Base 1, p 133
-#define GEC0 (GEBase+0xC0) // Destination Stride / Buffer Base 2, p 133
-#define GEC4 (GEBase+0xC4) // Destination Stride / Buffer Base 3, p 133
-#define GEC8 (GEBase+0xC8) // Source Stride / Buffer Base 0, p 133
-#define GECC (GEBase+0xCC) // Source Stride / Buffer Base 1, p 133
-#define GED0 (GEBase+0xD0) // Source Stride / Buffer Base 2, p 133
-#define GED4 (GEBase+0xD4) // Source Stride / Buffer Base 3, p 133
diff --git a/init/Kconfig b/init/Kconfig
index f2f9b53..7be4d38 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -808,6 +808,14 @@
you wait for kallsyms to be fixed.
+config STRIP_ASM_SYMS
+ bool "Strip assembler-generated symbols during link"
+ default n
+ help
+ Strip internal assembler-generated symbols during a link (symbols
+ that look like '.Lxxx') so they don't pollute the output of
+ get_wchan() and suchlike.
+
config HOTPLUG
bool "Support for hot-pluggable devices" if EMBEDDED
default y
diff --git a/init/initramfs.c b/init/initramfs.c
index 80cd713..9ee7b78 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -310,7 +310,8 @@
if (wfd >= 0) {
sys_fchown(wfd, uid, gid);
sys_fchmod(wfd, mode);
- sys_ftruncate(wfd, body_len);
+ if (body_len)
+ sys_ftruncate(wfd, body_len);
vcollected = kstrdup(collected, GFP_KERNEL);
state = CopyFile;
}
@@ -515,6 +516,7 @@
initrd_end = 0;
}
+#ifdef CONFIG_BLK_DEV_RAM
#define BUF_SIZE 1024
static void __init clean_rootfs(void)
{
@@ -561,6 +563,7 @@
sys_close(fd);
kfree(buf);
}
+#endif
static int __init populate_rootfs(void)
{
diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
index 89f60ec..24ae46d 100644
--- a/ipc/mq_sysctl.c
+++ b/ipc/mq_sysctl.c
@@ -22,6 +22,7 @@
#define MIN_MSGSIZEMAX 128 /* min value for msgsize_max */
#define MAX_MSGSIZEMAX (8192*128) /* max value for msgsize_max */
+#ifdef CONFIG_PROC_SYSCTL
static void *get_mq(ctl_table *table)
{
char *which = table->data;
@@ -30,7 +31,6 @@
return which;
}
-#ifdef CONFIG_PROC_SYSCTL
static int proc_mq_dointvec(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
diff --git a/kernel/mutex.c b/kernel/mutex.c
index 5d79781..507cf2b 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -148,7 +148,8 @@
preempt_disable();
mutex_acquire(&lock->dep_map, subclass, 0, ip);
-#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES)
+#if defined(CONFIG_SMP) && !defined(CONFIG_DEBUG_MUTEXES) && \
+ !defined(CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES)
/*
* Optimistic spinning.
*
diff --git a/kernel/panic.c b/kernel/panic.c
index 3fd8c5b..934fb37 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -213,8 +213,16 @@
void add_taint(unsigned flag)
{
- /* can't trust the integrity of the kernel anymore: */
- debug_locks = 0;
+ /*
+ * Can't trust the integrity of the kernel anymore.
+ * We don't call directly debug_locks_off() because the issue
+ * is not necessarily serious enough to set oops_in_progress to 1
+ * Also we want to keep up lockdep for staging development and
+ * post-warning case.
+ */
+ if (flag != TAINT_CRAP && flag != TAINT_WARN && __debug_locks_off())
+ printk(KERN_WARNING "Disabling lockdep due to kernel taint\n");
+
set_bit(flag, &tainted_mask);
}
EXPORT_SYMBOL(add_taint);
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 5f21ab2..0854770 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -22,6 +22,7 @@
#include <linux/console.h>
#include <linux/cpu.h>
#include <linux/freezer.h>
+#include <scsi/scsi_scan.h>
#include <asm/suspend.h>
#include "power.h"
@@ -645,6 +646,13 @@
return 0;
/*
+ * We can't depend on SCSI devices being available after loading one of
+ * their modules if scsi_complete_async_scans() is not called and the
+ * resume device usually is a SCSI one.
+ */
+ scsi_complete_async_scans();
+
+ /*
* name_to_dev_t() below takes a sysfs buffer mutex when sysfs
* is configured into the kernel. Since the regular hibernate
* trigger path is via sysfs which takes a buffer mutex before
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 6c85359..ed97375 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -24,6 +24,7 @@
#include <linux/cpu.h>
#include <linux/freezer.h>
#include <linux/smp_lock.h>
+#include <scsi/scsi_scan.h>
#include <asm/uaccess.h>
@@ -92,6 +93,7 @@
filp->private_data = data;
memset(&data->handle, 0, sizeof(struct snapshot_handle));
if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {
+ /* Hibernating. The image device should be accessible. */
data->swap = swsusp_resume_device ?
swap_type_of(swsusp_resume_device, 0, NULL) : -1;
data->mode = O_RDONLY;
@@ -99,6 +101,13 @@
if (error)
pm_notifier_call_chain(PM_POST_HIBERNATION);
} else {
+ /*
+ * Resuming. We may need to wait for the image device to
+ * appear.
+ */
+ wait_for_device_probe();
+ scsi_complete_async_scans();
+
data->swap = -1;
data->mode = O_WRONLY;
error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 64191fa..dfcd83c 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -604,10 +604,11 @@
ret = security_ptrace_traceme(current->parent);
/*
- * Set the ptrace bit in the process ptrace flags.
- * Then link us on our parent's ptraced list.
+ * Check PF_EXITING to ensure ->real_parent has not passed
+ * exit_ptrace(). Otherwise we don't report the error but
+ * pretend ->real_parent untraces us right after return.
*/
- if (!ret) {
+ if (!ret && !(current->real_parent->flags & PF_EXITING)) {
current->ptrace |= PT_PTRACED;
__ptrace_link(current, current->real_parent);
}
diff --git a/kernel/sys.c b/kernel/sys.c
index 51dbb55..e7998cf 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -360,6 +360,7 @@
void __user *, arg)
{
char buffer[256];
+ int ret = 0;
/* We only trust the superuser with rebooting the system. */
if (!capable(CAP_SYS_BOOT))
@@ -397,7 +398,7 @@
kernel_halt();
unlock_kernel();
do_exit(0);
- break;
+ panic("cannot halt");
case LINUX_REBOOT_CMD_POWER_OFF:
kernel_power_off();
@@ -417,29 +418,22 @@
#ifdef CONFIG_KEXEC
case LINUX_REBOOT_CMD_KEXEC:
- {
- int ret;
- ret = kernel_kexec();
- unlock_kernel();
- return ret;
- }
+ ret = kernel_kexec();
+ break;
#endif
#ifdef CONFIG_HIBERNATION
case LINUX_REBOOT_CMD_SW_SUSPEND:
- {
- int ret = hibernate();
- unlock_kernel();
- return ret;
- }
+ ret = hibernate();
+ break;
#endif
default:
- unlock_kernel();
- return -EINVAL;
+ ret = -EINVAL;
+ break;
}
unlock_kernel();
- return 0;
+ return ret;
}
static void deferred_cad(struct work_struct *dummy)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4286b62..e3d2c7d 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -902,16 +902,6 @@
.proc_handler = &proc_dointvec,
},
#endif
-#ifdef CONFIG_UNEVICTABLE_LRU
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "scan_unevictable_pages",
- .data = &scan_unevictable_pages,
- .maxlen = sizeof(scan_unevictable_pages),
- .mode = 0644,
- .proc_handler = &scan_unevictable_handler,
- },
-#endif
#ifdef CONFIG_SLOW_WORK
{
.ctl_name = CTL_UNNUMBERED,
@@ -1302,6 +1292,16 @@
.extra2 = &one,
},
#endif
+#ifdef CONFIG_UNEVICTABLE_LRU
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "scan_unevictable_pages",
+ .data = &scan_unevictable_pages,
+ .maxlen = sizeof(scan_unevictable_pages),
+ .mode = 0644,
+ .proc_handler = &scan_unevictable_handler,
+ },
+#endif
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 2246141..417d198 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -312,7 +312,7 @@
and profile kernel code.
This requires an userspace application to use. See
- Documentation/vm/kmemtrace.txt for more information.
+ Documentation/trace/kmemtrace.txt for more information.
Saying Y will make the kernel somewhat larger and slower. However,
if you disable kmemtrace at run-time or boot-time, the performance
@@ -403,7 +403,7 @@
implementation and works via page faults. Tracing is disabled by
default and can be enabled at run-time.
- See Documentation/tracers/mmiotrace.txt.
+ See Documentation/trace/mmiotrace.txt.
If you are not helping to develop drivers, say N.
config MMIOTRACE_TEST
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9d28476..1ce5dc6 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3277,19 +3277,13 @@
info->tr = &global_trace;
info->cpu = cpu;
- info->spare = ring_buffer_alloc_read_page(info->tr->buffer);
+ info->spare = NULL;
/* Force reading ring buffer for first read */
info->read = (unsigned int)-1;
- if (!info->spare)
- goto out;
filp->private_data = info;
- return 0;
-
- out:
- kfree(info);
- return -ENOMEM;
+ return nonseekable_open(inode, filp);
}
static ssize_t
@@ -3304,6 +3298,11 @@
if (!count)
return 0;
+ if (!info->spare)
+ info->spare = ring_buffer_alloc_read_page(info->tr->buffer);
+ if (!info->spare)
+ return -ENOMEM;
+
/* Do we have previous read data to read? */
if (info->read < PAGE_SIZE)
goto read;
@@ -3342,7 +3341,8 @@
{
struct ftrace_buffer_info *info = file->private_data;
- ring_buffer_free_read_page(info->tr->buffer, info->spare);
+ if (info->spare)
+ ring_buffer_free_read_page(info->tr->buffer, info->spare);
kfree(info);
return 0;
@@ -3428,14 +3428,19 @@
int size, i;
size_t ret;
- /*
- * We can't seek on a buffer input
- */
- if (unlikely(*ppos))
- return -ESPIPE;
+ if (*ppos & (PAGE_SIZE - 1)) {
+ WARN_ONCE(1, "Ftrace: previous read must page-align\n");
+ return -EINVAL;
+ }
+ if (len & (PAGE_SIZE - 1)) {
+ WARN_ONCE(1, "Ftrace: splice_read should page-align\n");
+ if (len < PAGE_SIZE)
+ return -EINVAL;
+ len &= PAGE_MASK;
+ }
- for (i = 0; i < PIPE_BUFFERS && len; i++, len -= size) {
+ for (i = 0; i < PIPE_BUFFERS && len; i++, len -= PAGE_SIZE) {
struct page *page;
int r;
@@ -3474,6 +3479,7 @@
spd.partial[i].offset = 0;
spd.partial[i].private = (unsigned long)ref;
spd.nr_pages++;
+ *ppos += PAGE_SIZE;
}
spd.nr_pages = i;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 64ec4d2..576f4fa 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -503,6 +503,7 @@
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
+ buf[cnt] = '\0';
pred = kzalloc(sizeof(*pred), GFP_KERNEL);
if (!pred)
@@ -520,9 +521,10 @@
return cnt;
}
- if (filter_add_pred(call, pred)) {
+ err = filter_add_pred(call, pred);
+ if (err < 0) {
filter_free_pred(pred);
- return -EINVAL;
+ return err;
}
*ppos += cnt;
@@ -569,6 +571,7 @@
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
+ buf[cnt] = '\0';
pred = kzalloc(sizeof(*pred), GFP_KERNEL);
if (!pred)
@@ -586,10 +589,11 @@
return cnt;
}
- if (filter_add_subsystem_pred(system, pred)) {
+ err = filter_add_subsystem_pred(system, pred);
+ if (err < 0) {
filter_free_subsystem_preds(system);
filter_free_pred(pred);
- return -EINVAL;
+ return err;
}
*ppos += cnt;
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 026be41..e03cbf1 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -215,7 +215,7 @@
}
}
- return -ENOMEM;
+ return -ENOSPC;
}
static int is_string_field(const char *type)
@@ -319,7 +319,7 @@
}
if (i == MAX_FILTER_PRED)
- return -EINVAL;
+ return -ENOSPC;
events_for_each(call) {
int err;
@@ -410,16 +410,22 @@
}
}
+ if (!val_str) {
+ pred->field_name = NULL;
+ return -EINVAL;
+ }
+
pred->field_name = kstrdup(pred->field_name, GFP_KERNEL);
if (!pred->field_name)
return -ENOMEM;
- pred->val = simple_strtoull(val_str, &tmp, 10);
+ pred->val = simple_strtoull(val_str, &tmp, 0);
if (tmp == val_str) {
pred->str_val = kstrdup(val_str, GFP_KERNEL);
if (!pred->str_val)
return -ENOMEM;
- }
+ } else if (*tmp != '\0')
+ return -EINVAL;
return 0;
}
diff --git a/kernel/trace/trace_events_stage_2.h b/kernel/trace/trace_events_stage_2.h
index 30743f7..d363c66 100644
--- a/kernel/trace/trace_events_stage_2.h
+++ b/kernel/trace/trace_events_stage_2.h
@@ -105,10 +105,10 @@
return 0;
#undef __entry
-#define __entry "REC"
+#define __entry REC
#undef TP_printk
-#define TP_printk(fmt, args...) "%s, %s\n", #fmt, #args
+#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
#undef TP_fast_assign
#define TP_fast_assign(args...) args
diff --git a/lib/debug_locks.c b/lib/debug_locks.c
index 0218b46..bc3b117 100644
--- a/lib/debug_locks.c
+++ b/lib/debug_locks.c
@@ -36,7 +36,7 @@
*/
int debug_locks_off(void)
{
- if (xchg(&debug_locks, 0)) {
+ if (__debug_locks_off()) {
if (!debug_locks_silent) {
oops_in_progress = 1;
console_verbose();
diff --git a/mm/Kconfig b/mm/Kconfig
index b53427a..57971d2 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -213,6 +213,8 @@
will use one page flag and increase the code size a little,
say Y unless you know what you are doing.
+ See Documentation/vm/unevictable-lru.txt for more information.
+
config HAVE_MLOCK
bool
default y if MMU=y
diff --git a/mm/filemap.c b/mm/filemap.c
index 2e2d38e..8bd4980 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -567,8 +567,8 @@
/**
* add_page_wait_queue - Add an arbitrary waiter to a page's wait queue
- * @page - Page defining the wait queue of interest
- * @waiter - Waiter to add to the queue
+ * @page: Page defining the wait queue of interest
+ * @waiter: Waiter to add to the queue
*
* Add an arbitrary @waiter to the wait queue for the nominated @page.
*/
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2fc6d6c..e44fb0f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -932,7 +932,7 @@
if (unlikely(!mem))
return 0;
- VM_BUG_ON(mem_cgroup_is_obsolete(mem));
+ VM_BUG_ON(!mem || mem_cgroup_is_obsolete(mem));
while (1) {
int ret;
diff --git a/mm/shmem.c b/mm/shmem.c
index d94d2e9..f9cb20e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/vfs.h>
#include <linux/mount.h>
+#include <linux/pagemap.h>
#include <linux/file.h>
#include <linux/mm.h>
#include <linux/module.h>
@@ -43,7 +44,6 @@
#include <linux/exportfs.h>
#include <linux/generic_acl.h>
#include <linux/mman.h>
-#include <linux/pagemap.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/backing-dev.h>
@@ -65,13 +65,28 @@
#include <asm/div64.h>
#include <asm/pgtable.h>
+/*
+ * The maximum size of a shmem/tmpfs file is limited by the maximum size of
+ * its triple-indirect swap vector - see illustration at shmem_swp_entry().
+ *
+ * With 4kB page size, maximum file size is just over 2TB on a 32-bit kernel,
+ * but one eighth of that on a 64-bit kernel. With 8kB page size, maximum
+ * file size is just over 4TB on a 64-bit kernel, but 16TB on a 32-bit kernel,
+ * MAX_LFS_FILESIZE being then more restrictive than swap vector layout.
+ *
+ * We use / and * instead of shifts in the definitions below, so that the swap
+ * vector can be tested with small even values (e.g. 20) for ENTRIES_PER_PAGE.
+ */
#define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long))
-#define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
+#define ENTRIES_PER_PAGEPAGE ((unsigned long long)ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
+
+#define SHMSWP_MAX_INDEX (SHMEM_NR_DIRECT + (ENTRIES_PER_PAGEPAGE/2) * (ENTRIES_PER_PAGE+1))
+#define SHMSWP_MAX_BYTES (SHMSWP_MAX_INDEX << PAGE_CACHE_SHIFT)
+
+#define SHMEM_MAX_BYTES min_t(unsigned long long, SHMSWP_MAX_BYTES, MAX_LFS_FILESIZE)
+#define SHMEM_MAX_INDEX ((unsigned long)((SHMEM_MAX_BYTES+1) >> PAGE_CACHE_SHIFT))
+
#define BLOCKS_PER_PAGE (PAGE_CACHE_SIZE/512)
-
-#define SHMEM_MAX_INDEX (SHMEM_NR_DIRECT + (ENTRIES_PER_PAGEPAGE/2) * (ENTRIES_PER_PAGE+1))
-#define SHMEM_MAX_BYTES ((unsigned long long)SHMEM_MAX_INDEX << PAGE_CACHE_SHIFT)
-
#define VM_ACCT(size) (PAGE_CACHE_ALIGN(size) >> PAGE_SHIFT)
/* info->flags needs VM_flags to handle pagein/truncate races efficiently */
@@ -2581,7 +2596,7 @@
#define shmem_get_inode(sb, mode, dev, flags) ramfs_get_inode(sb, mode, dev)
#define shmem_acct_size(flags, size) 0
#define shmem_unacct_size(flags, size) do {} while (0)
-#define SHMEM_MAX_BYTES LLONG_MAX
+#define SHMEM_MAX_BYTES MAX_LFS_FILESIZE
#endif /* CONFIG_SHMEM */
diff --git a/mm/util.c b/mm/util.c
index 2599e83e..55bef16 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -223,6 +223,22 @@
}
#endif
+/**
+ * get_user_pages_fast() - pin user pages in memory
+ * @start: starting user address
+ * @nr_pages: number of pages from start to pin
+ * @write: whether pages will be written to
+ * @pages: array that receives pointers to the pages pinned.
+ * Should be at least nr_pages long.
+ *
+ * Attempt to pin user pages in memory without taking mm->mmap_sem.
+ * If not successful, it will fall back to taking the lock and
+ * calling get_user_pages().
+ *
+ * Returns number of pages pinned. This may be fewer than the number
+ * requested. If nr_pages is 0 or negative, returns 0. If no pages
+ * were pinned, returns -errno.
+ */
int __attribute__((weak)) get_user_pages_fast(unsigned long start,
int nr_pages, int write, struct page **pages)
{
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 612dc13..095cfc8 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -14,6 +14,8 @@
kbuild-file := $(srctree)/$(obj)/Kbuild
include $(kbuild-file)
+_dst := $(if $(destination-y),$(destination-y),$(_dst))
+
include scripts/Kbuild.include
install := $(INSTALL_HDR_PATH)/$(_dst)
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index 3eea8f1..76af5f9 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -97,7 +97,7 @@
}
list_parse() {
- echo "$1 \\"
+ [ ! -L "$1" ] && echo "$1 \\" || :
}
# for each file print a line in following format
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
new file mode 100755
index 0000000..60dc0c4
--- /dev/null
+++ b/scripts/get_maintainer.pl
@@ -0,0 +1,515 @@
+#!/usr/bin/perl -w
+# (c) 2007, Joe Perches <joe@perches.com>
+# created from checkpatch.pl
+#
+# Print selected MAINTAINERS information for
+# the files modified in a patch or for a file
+#
+# usage: perl scripts/get_maintainers.pl [OPTIONS] <patch>
+# perl scripts/get_maintainers.pl [OPTIONS] -f <file>
+#
+# Licensed under the terms of the GNU GPL License version 2
+
+use strict;
+
+my $P = $0;
+my $V = '0.15';
+
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $lk_path = "./";
+my $email = 1;
+my $email_usename = 1;
+my $email_maintainer = 1;
+my $email_list = 1;
+my $email_subscriber_list = 0;
+my $email_git = 1;
+my $email_git_penguin_chiefs = 0;
+my $email_git_min_signatures = 1;
+my $email_git_max_maintainers = 5;
+my $email_git_since = "1-year-ago";
+my $output_multiline = 1;
+my $output_separator = ", ";
+my $scm = 0;
+my $web = 0;
+my $subsystem = 0;
+my $status = 0;
+my $from_filename = 0;
+my $version = 0;
+my $help = 0;
+
+my $exit = 0;
+
+my @penguin_chief = ();
+push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
+#Andrew wants in on most everything - 2009/01/14
+#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");
+
+my @penguin_chief_names = ();
+foreach my $chief (@penguin_chief) {
+ if ($chief =~ m/^(.*):(.*)/) {
+ my $chief_name = $1;
+ my $chief_addr = $2;
+ push(@penguin_chief_names, $chief_name);
+ }
+}
+my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";
+
+if (!GetOptions(
+ 'email!' => \$email,
+ 'git!' => \$email_git,
+ 'git-chief-penguins!' => \$email_git_penguin_chiefs,
+ 'git-min-signatures=i' => \$email_git_min_signatures,
+ 'git-max-maintainers=i' => \$email_git_max_maintainers,
+ 'git-since=s' => \$email_git_since,
+ 'm!' => \$email_maintainer,
+ 'n!' => \$email_usename,
+ 'l!' => \$email_list,
+ 's!' => \$email_subscriber_list,
+ 'multiline!' => \$output_multiline,
+ 'separator=s' => \$output_separator,
+ 'subsystem!' => \$subsystem,
+ 'status!' => \$status,
+ 'scm!' => \$scm,
+ 'web!' => \$web,
+ 'f|file' => \$from_filename,
+ 'v|version' => \$version,
+ 'h|help' => \$help,
+ )) {
+ usage();
+ die "$P: invalid argument\n";
+}
+
+if ($help != 0) {
+ usage();
+ exit 0;
+}
+
+if ($version != 0) {
+ print("${P} ${V}\n");
+ exit 0;
+}
+
+if ($#ARGV < 0) {
+ usage();
+ die "$P: argument missing: patchfile or -f file please\n";
+}
+
+my $selections = $email + $scm + $status + $subsystem + $web;
+if ($selections == 0) {
+ usage();
+ die "$P: Missing required option: email, scm, status, subsystem or web\n";
+}
+
+if ($email && ($email_maintainer + $email_list + $email_subscriber_list
+ + $email_git + $email_git_penguin_chiefs) == 0) {
+ usage();
+ die "$P: Please select at least 1 email option\n";
+}
+
+if (!top_of_kernel_tree($lk_path)) {
+ die "$P: The current directory does not appear to be "
+ . "a linux kernel source tree.\n";
+}
+
+## Read MAINTAINERS for type/value pairs
+
+my @typevalue = ();
+open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
+while (<MAINT>) {
+ my $line = $_;
+
+ if ($line =~ m/^(\C):\s*(.*)/) {
+ my $type = $1;
+ my $value = $2;
+
+ ##Filename pattern matching
+ if ($type eq "F" || $type eq "X") {
+ $value =~ s@\.@\\\.@g; ##Convert . to \.
+ $value =~ s/\*/\.\*/g; ##Convert * to .*
+ $value =~ s/\?/\./g; ##Convert ? to .
+ }
+ push(@typevalue, "$type:$value");
+ } elsif (!/^(\s)*$/) {
+ $line =~ s/\n$//g;
+ push(@typevalue, $line);
+ }
+}
+close(MAINT);
+
+## use the filenames on the command line or find the filenames in the patchfiles
+
+my @files = ();
+
+foreach my $file (@ARGV) {
+ next if ((-d $file));
+ if (!(-f $file)) {
+ die "$P: file '${file}' not found\n";
+ }
+ if ($from_filename) {
+ push(@files, $file);
+ } else {
+ my $file_cnt = @files;
+ open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
+ while (<PATCH>) {
+ if (m/^\+\+\+\s+(\S+)/) {
+ my $filename = $1;
+ $filename =~ s@^[^/]*/@@;
+ $filename =~ s@\n@@;
+ push(@files, $filename);
+ }
+ }
+ close(PATCH);
+ if ($file_cnt == @files) {
+ die "$P: file '${file}' doesn't appear to be a patch. "
+ . "Add -f to options?\n";
+ }
+ @files = sort_and_uniq(@files);
+ }
+}
+
+my @email_to = ();
+my @scm = ();
+my @web = ();
+my @subsystem = ();
+my @status = ();
+
+# Find responsible parties
+
+foreach my $file (@files) {
+
+#Do not match excluded file patterns
+
+ my $exclude = 0;
+ foreach my $line (@typevalue) {
+ if ($line =~ m/^(\C):(.*)/) {
+ my $type = $1;
+ my $value = $2;
+ if ($type eq 'X') {
+ if (file_match_pattern($file, $value)) {
+ $exclude = 1;
+ }
+ }
+ }
+ }
+
+ if (!$exclude) {
+ my $tvi = 0;
+ foreach my $line (@typevalue) {
+ if ($line =~ m/^(\C):(.*)/) {
+ my $type = $1;
+ my $value = $2;
+ if ($type eq 'F') {
+ if (file_match_pattern($file, $value)) {
+ add_categories($tvi);
+ }
+ }
+ }
+ $tvi++;
+ }
+ }
+
+ if ($email && $email_git) {
+ recent_git_signoffs($file);
+ }
+
+}
+
+if ($email_git_penguin_chiefs) {
+ foreach my $chief (@penguin_chief) {
+ if ($chief =~ m/^(.*):(.*)/) {
+ my $chief_name = $1;
+ my $chief_addr = $2;
+ if ($email_usename) {
+ push(@email_to, format_email($chief_name, $chief_addr));
+ } else {
+ push(@email_to, $chief_addr);
+ }
+ }
+ }
+}
+
+if ($email) {
+ my $address_cnt = @email_to;
+ if ($address_cnt == 0 && $email_list) {
+ push(@email_to, "linux-kernel\@vger.kernel.org");
+ }
+
+#Don't sort email address list, but do remove duplicates
+ @email_to = uniq(@email_to);
+ output(@email_to);
+}
+
+if ($scm) {
+ @scm = sort_and_uniq(@scm);
+ output(@scm);
+}
+
+if ($status) {
+ @status = sort_and_uniq(@status);
+ output(@status);
+}
+
+if ($subsystem) {
+ @subsystem = sort_and_uniq(@subsystem);
+ output(@subsystem);
+}
+
+if ($web) {
+ @web = sort_and_uniq(@web);
+ output(@web);
+}
+
+exit($exit);
+
+sub file_match_pattern {
+ my ($file, $pattern) = @_;
+ if (substr($pattern, -1) eq "/") {
+ if ($file =~ m@^$pattern@) {
+ return 1;
+ }
+ } else {
+ if ($file =~ m@^$pattern@) {
+ my $s1 = ($file =~ tr@/@@);
+ my $s2 = ($pattern =~ tr@/@@);
+ if ($s1 == $s2) {
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+sub usage {
+ print <<EOT;
+usage: $P [options] patchfile
+ $P [options] -f file
+version: $V
+
+MAINTAINER field selection options:
+ --email => print email address(es) if any
+ --git => include recent git \*-by: signers
+ --git-chief-penguins => include ${penguin_chiefs}
+ --git-min-signatures => number of signatures required (default: 1)
+ --git-max-maintainers => maximum maintainers to add (default: 5)
+ --git-since => git history to use (default: 1-year-ago)
+ --m => include maintainer(s) if any
+ --n => include name 'Full Name <addr\@domain.tld>'
+ --l => include list(s) if any
+ --s => include subscriber only list(s) if any
+ --scm => print SCM tree(s) if any
+ --status => print status if any
+ --subsystem => print subsystem name if any
+ --web => print website(s) if any
+
+Output type options:
+ --separator [, ] => separator for multiple entries on 1 line
+ --multiline => print 1 entry per line
+
+Default options:
+ [--email --git --m --l --multiline]
+
+Other options:
+ --version -> show version
+ --help => show this help information
+
+EOT
+}
+
+sub top_of_kernel_tree {
+ my ($lk_path) = @_;
+
+ if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
+ $lk_path .= "/";
+ }
+ if ( (-f "${lk_path}COPYING")
+ && (-f "${lk_path}CREDITS")
+ && (-f "${lk_path}Kbuild")
+ && (-f "${lk_path}MAINTAINERS")
+ && (-f "${lk_path}Makefile")
+ && (-f "${lk_path}README")
+ && (-d "${lk_path}Documentation")
+ && (-d "${lk_path}arch")
+ && (-d "${lk_path}include")
+ && (-d "${lk_path}drivers")
+ && (-d "${lk_path}fs")
+ && (-d "${lk_path}init")
+ && (-d "${lk_path}ipc")
+ && (-d "${lk_path}kernel")
+ && (-d "${lk_path}lib")
+ && (-d "${lk_path}scripts")) {
+ return 1;
+ }
+ return 0;
+}
+
+sub format_email {
+ my ($name, $email) = @_;
+
+ $name =~ s/^\s+|\s+$//g;
+ $email =~ s/^\s+|\s+$//g;
+
+ my $formatted_email = "";
+
+ if ($name =~ /[^a-z0-9 \.\-]/i) { ##has "must quote" chars
+ $name =~ s/(?<!\\)"/\\"/g; ##escape quotes
+ $formatted_email = "\"${name}\"\ \<${email}\>";
+ } else {
+ $formatted_email = "${name} \<${email}\>";
+ }
+ return $formatted_email;
+}
+
+sub add_categories {
+ my ($index) = @_;
+
+ $index = $index - 1;
+ while ($index >= 0) {
+ my $tv = $typevalue[$index];
+ if ($tv =~ m/^(\C):(.*)/) {
+ my $ptype = $1;
+ my $pvalue = $2;
+ if ($ptype eq "L") {
+ my $subscr = $pvalue;
+ if ($subscr =~ m/\s*\(subscribers-only\)/) {
+ if ($email_subscriber_list) {
+ $subscr =~ s/\s*\(subscribers-only\)//g;
+ push(@email_to, $subscr);
+ }
+ } else {
+ if ($email_list) {
+ push(@email_to, $pvalue);
+ }
+ }
+ } elsif ($ptype eq "M") {
+ if ($email_maintainer) {
+ if ($index >= 0) {
+ my $tv = $typevalue[$index - 1];
+ if ($tv =~ m/^(\C):(.*)/) {
+ if ($1 eq "P" && $email_usename) {
+ push(@email_to, format_email($2, $pvalue));
+ } else {
+ push(@email_to, $pvalue);
+ }
+ }
+ } else {
+ push(@email_to, $pvalue);
+ }
+ }
+ } elsif ($ptype eq "T") {
+ push(@scm, $pvalue);
+ } elsif ($ptype eq "W") {
+ push(@web, $pvalue);
+ } elsif ($ptype eq "S") {
+ push(@status, $pvalue);
+ }
+
+ $index--;
+ } else {
+ push(@subsystem,$tv);
+ $index = -1;
+ }
+ }
+}
+
+sub which {
+ my ($bin) = @_;
+
+ foreach my $path (split /:/, $ENV{PATH}) {
+ if (-e "$path/$bin") {
+ return "$path/$bin";
+ }
+ }
+
+ return "";
+}
+
+sub recent_git_signoffs {
+ my ($file) = @_;
+
+ my $sign_offs = "";
+ my $cmd = "";
+ my $output = "";
+ my $count = 0;
+ my @lines = ();
+
+ if (which("git") eq "") {
+ die("$P: git not found. Add --nogit to options?\n");
+ }
+
+ $cmd = "git log --since=${email_git_since} -- ${file}";
+ $cmd .= " | grep -Pi \"^[-_ a-z]+by:.*\\\@\"";
+ if (!$email_git_penguin_chiefs) {
+ $cmd .= " | grep -Pv \"${penguin_chiefs}\"";
+ }
+ $cmd .= " | cut -f2- -d\":\"";
+ $cmd .= " | sed -e \"s/^\\s+//g\"";
+ $cmd .= " | sort | uniq -c | sort -rn";
+
+ $output = `${cmd}`;
+ $output =~ s/^\s*//gm;
+
+ @lines = split("\n", $output);
+ foreach my $line (@lines) {
+ if ($line =~ m/([0-9]+)\s+(.*)/) {
+ my $sign_offs = $1;
+ $line = $2;
+ $count++;
+ if ($sign_offs < $email_git_min_signatures ||
+ $count > $email_git_max_maintainers) {
+ last;
+ }
+ } else {
+ die("$P: Unexpected git output: ${line}\n");
+ }
+ if ($line =~ m/(.+)<(.+)>/) {
+ my $git_name = $1;
+ my $git_addr = $2;
+ $git_name =~ tr/^\"//;
+ $git_name =~ tr/^\\s*//;
+ $git_name =~ tr/\"$//;
+ $git_name =~ tr/\\s*$//;
+ if ($email_usename) {
+ push(@email_to, format_email($git_name, $git_addr));
+ } else {
+ push(@email_to, $git_addr);
+ }
+ } elsif ($line =~ m/<(.+)>/) {
+ my $git_addr = $1;
+ push(@email_to, $git_addr);
+ } else {
+ push(@email_to, $line);
+ }
+ }
+ return $output;
+}
+
+sub uniq {
+ my @parms = @_;
+
+ my %saw;
+ @parms = grep(!$saw{$_}++, @parms);
+ return @parms;
+}
+
+sub sort_and_uniq {
+ my @parms = @_;
+
+ my %saw;
+ @parms = sort @parms;
+ @parms = grep(!$saw{$_}++, @parms);
+ return @parms;
+}
+
+sub output {
+ my @parms = @_;
+
+ if ($output_multiline) {
+ foreach my $line (@parms) {
+ print("${line}\n");
+ }
+ } else {
+ print(join($output_separator, @parms));
+ print("\n");
+ }
+}
diff --git a/scripts/headerdep.pl b/scripts/headerdep.pl
index 97399da..b7f6c56 100755
--- a/scripts/headerdep.pl
+++ b/scripts/headerdep.pl
@@ -19,7 +19,7 @@
version => \&version,
all => \$opt_all,
- I => \@opt_include,
+ "I=s" => \@opt_include,
graph => \$opt_graph,
);
diff --git a/scripts/kconfig/kxgettext.c b/scripts/kconfig/kxgettext.c
index 6eb72a7..8d9ce22 100644
--- a/scripts/kconfig/kxgettext.c
+++ b/scripts/kconfig/kxgettext.c
@@ -43,6 +43,10 @@
++text;
goto next;
}
+ else if (*text == '\\') {
+ *bfp++ = '\\';
+ len--;
+ }
*bfp++ = *text++;
next:
--len;
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8cc7061..df6e628 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1913,7 +1913,7 @@
if (!mod) {
if (is_vmlinux(modname))
have_vmlinux = 1;
- mod = new_module(NOFAIL(strdup(modname)));
+ mod = new_module(modname);
mod->skip = 1;
}
s = sym_add_exported(symname, mod, export_no(export));
@@ -1997,7 +1997,7 @@
mod = find_module(modname);
if (!mod) {
- mod = new_module(NOFAIL(strdup(modname)));
+ mod = new_module(modname);
mod->skip = 1;
}
if (is_vmlinux(modname)) {
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index f1c4b35..47e75b6 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -21,7 +21,7 @@
# Is this git on svn?
if git config --get svn-remote.svn.url >/dev/null; then
- printf -- '-svn%s' "`git-svn find-rev $head`"
+ printf -- '-svn%s' "`git svn find-rev $head`"
fi
# Are there uncommitted changes?
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index a0affd9..d4d41b3 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
@@ -1773,7 +1773,7 @@
envp[2] = NULL;
call_usermodehelper(argv[0], argv, envp, 1);
- printk(KERN_INFO "TOMOYO: 2.2.0-pre 2009/02/01\n");
+ printk(KERN_INFO "TOMOYO: 2.2.0 2009/04/01\n");
printk(KERN_INFO "Mandatory Access Control activated.\n");
tomoyo_policy_loaded = true;
{ /* Check all profiles currently assigned to domains are defined. */
@@ -1800,7 +1800,7 @@
static int tomoyo_read_version(struct tomoyo_io_buffer *head)
{
if (!head->read_eof) {
- tomoyo_io_printf(head, "2.2.0-pre");
+ tomoyo_io_printf(head, "2.2.0");
head->read_eof = true;
}
return 0;
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index e77e6a6..678f4ff 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 2f2b449..2d67487 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 65f50c1..2316da8 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 3bbe01a..bf8e2b4 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/realpath.h b/security/tomoyo/realpath.h
index 7ec9fc9c..78217a3 100644
--- a/security/tomoyo/realpath.h
+++ b/security/tomoyo/realpath.h
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 3eeeae1..5b48191 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/security/tomoyo/tomoyo.h b/security/tomoyo/tomoyo.h
index a0c8f6e..41c6eba 100644
--- a/security/tomoyo/tomoyo.h
+++ b/security/tomoyo/tomoyo.h
@@ -5,7 +5,7 @@
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
- * Version: 2.2.0-pre 2009/02/01
+ * Version: 2.2.0 2009/04/01
*
*/
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 30829ee..7ba8db5 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2260,11 +2260,11 @@
gcap &= ~0x01;
/* allow 64bit DMA address if supported by H/W */
- if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
- pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
+ if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
else {
- pci_set_dma_mask(pci, DMA_32BIT_MASK);
- pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK);
+ pci_set_dma_mask(pci, DMA_BIT_MASK(32));
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
}
/* read number of streams from GCAP register instead of using