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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "IA-64 Linux Kernel Configuration"
7
8source "init/Kconfig"
9
Matt Helsleydc52ddc2008-10-18 20:27:21 -070010source "kernel/Kconfig.freezer"
11
Linus Torvalds1da177e2005-04-16 15:20:36 -070012menu "Processor type and features"
13
14config IA64
15 bool
Len Brown06f87ad2007-01-26 00:38:53 -050016 select PCI if (!IA64_HP_SIM)
17 select ACPI if (!IA64_HP_SIM)
Len Brown8140a902007-03-16 22:00:43 -040018 select PM if (!IA64_HP_SIM)
Dan Williamsf282b972007-04-18 18:46:20 +100019 select ARCH_SUPPORTS_MSI
Tony Luck0773a6c2009-01-15 10:29:17 -080020 select HAVE_UNSTABLE_SCHED_CLOCK
Sam Ravnborgec7748b2008-02-09 10:46:40 +010021 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050022 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050023 select HAVE_KPROBES
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080024 select HAVE_KRETPROBES
Shaohua Lia14a07b2009-01-09 11:29:49 +080025 select HAVE_FTRACE_MCOUNT_RECORD
26 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
Shaohua Lid3e75ff2009-01-09 11:29:46 +080027 select HAVE_FUNCTION_TRACER
Arthur Kepner74bc7ce2008-04-29 01:00:30 -070028 select HAVE_DMA_ATTRS
Xiantao Zhangb6939192008-03-28 14:58:47 +080029 select HAVE_KVM
Shaohua Li9690ad02008-10-01 13:57:14 -070030 select HAVE_ARCH_TRACEHOOK
FUJITA Tomonori99162192009-06-17 16:28:14 -070031 select HAVE_DMA_API_DEBUG
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 default y
33 help
34 The Itanium Processor Family is Intel's 64-bit successor to
35 the 32-bit X86 line. The IA-64 Linux project has a home
36 page at <http://www.linuxia64.org/> and a mailing list at
37 <linux-ia64@vger.kernel.org>.
38
39config 64BIT
40 bool
Zhang, Yanmin9f271d52007-02-09 11:29:51 +080041 select ATA_NONSTANDARD if ATA
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 default y
43
Christoph Lameter66701b12007-02-10 01:43:09 -080044config ZONE_DMA
Christoph Lameter09ae1f52007-02-10 01:43:11 -080045 def_bool y
46 depends on !IA64_SGI_SN2
Christoph Lameter66701b12007-02-10 01:43:09 -080047
Christoph Lameter2bd62a42007-05-10 22:42:53 -070048config QUICKLIST
49 bool
50 default y
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052config MMU
53 bool
54 default y
55
FUJITA Tomonori66ed5ef2010-03-10 15:23:25 -080056config NEED_DMA_MAP_STATE
57 def_bool y
58
FUJITA Tomonori18e98302010-05-26 14:44:32 -070059config NEED_SG_DMA_LENGTH
60 def_bool y
61
John W. Linville6c654b52005-09-29 14:42:42 -070062config SWIOTLB
63 bool
John W. Linville6c654b52005-09-29 14:42:42 -070064
Nick Piggin95c354f2008-01-30 13:31:20 +010065config GENERIC_LOCKBREAK
Tony Luck2c869632009-09-25 08:42:16 -070066 def_bool n
Nick Piggin95c354f2008-01-30 13:31:20 +010067
Linus Torvalds1da177e2005-04-16 15:20:36 -070068config RWSEM_XCHGADD_ALGORITHM
69 bool
70 default y
71
Mel Gormand9c23402007-10-16 01:26:01 -070072config HUGETLB_PAGE_SIZE_VARIABLE
73 bool
74 depends on HUGETLB_PAGE
75 default y
76
Akinobu Mita2875aef2006-03-26 01:39:25 -080077config GENERIC_FIND_NEXT_BIT
78 bool
79 default y
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config GENERIC_CALIBRATE_DELAY
82 bool
83 default y
84
Tony Luck0aa366f2007-07-20 11:22:30 -070085config GENERIC_TIME_VSYSCALL
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 bool
87 default y
88
travis@sgi.com988c3882008-01-30 23:27:58 +010089config HAVE_SETUP_PER_CPU_AREA
travis@sgi.comb32ef632008-01-30 13:32:51 +010090 def_bool y
91
Matt Domsch3ed3bce2006-03-26 01:37:03 -080092config DMI
93 bool
94 default y
95
Linus Torvalds1da177e2005-04-16 15:20:36 -070096config EFI
97 bool
98 default y
99
100config GENERIC_IOMAP
101 bool
102 default y
103
Ingo Molnarae1e9132008-11-11 09:05:16 +0100104config SCHED_OMIT_FRAME_POINTER
Anton Blanchard7d12e522005-05-05 16:15:11 -0700105 bool
106 default y
107
Jes Sorensenf14f75b2005-06-21 17:15:02 -0700108config IA64_UNCACHED_ALLOCATOR
109 bool
110 select GENERIC_ALLOCATOR
111
Venkatesh Pallipadi46cf98c2009-07-10 09:57:37 -0700112config ARCH_USES_PG_UNCACHED
113 def_bool y
114 depends on IA64_UNCACHED_ALLOCATOR
115
Al Viroe65e1fc2006-09-12 03:04:40 -0400116config AUDIT_ARCH
117 bool
118 default y
119
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900120menuconfig PARAVIRT_GUEST
121 bool "Paravirtualized guest support"
122 help
123 Say Y here to get to see options related to running Linux under
124 various hypervisors. This option alone does not add any kernel code.
125
126 If you say N, all options in this submenu will be skipped and disabled.
127
128if PARAVIRT_GUEST
129
130config PARAVIRT
131 bool "Enable paravirtualization code"
132 depends on PARAVIRT_GUEST
133 default y
134 bool
135 default y
136 help
137 This changes the kernel so it can modify itself when it is run
138 under a hypervisor, potentially improving performance significantly
139 over full virtualization. However, when run without a hypervisor
140 the kernel is theoretically slower and slightly larger.
141
142
143source "arch/ia64/xen/Kconfig"
144
145endif
146
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147choice
148 prompt "System type"
149 default IA64_GENERIC
150
151config IA64_GENERIC
152 bool "generic"
153 select NUMA
154 select ACPI_NUMA
Jan Beulichd1598e02007-01-03 09:26:21 +0000155 select SWIOTLB
Fenghua Yu62fdd762008-10-17 12:14:13 -0700156 select PCI_MSI
Tony Luckf2b3fdc2008-11-03 13:54:52 -0800157 select DMAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 help
159 This selects the system type of your hardware. A "generic" kernel
160 will run on any supported IA-64 system. However, if you configure
161 a kernel for your specific system, it will be faster and smaller.
162
163 generic For any supported IA-64 system
164 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
Fenghua Yu62fdd762008-10-17 12:14:13 -0700165 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 HP-zx1/sx1000 For HP systems
167 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
168 SGI-SN2 For SGI Altix systems
Jack Steiner22246612008-05-06 15:18:57 -0500169 SGI-UV For SGI UV systems
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900171 Xen-domU For xen domU system
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
173 If you don't know what to do, choose "generic".
174
175config IA64_DIG
176 bool "DIG-compliant"
Jan Beulichd1598e02007-01-03 09:26:21 +0000177 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
Fenghua Yu62fdd762008-10-17 12:14:13 -0700179config IA64_DIG_VTD
180 bool "DIG+Intel+IOMMU"
181 select DMAR
182 select PCI_MSI
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config IA64_HP_ZX1
185 bool "HP-zx1/sx1000"
186 help
187 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
188 support for the HP I/O MMU.
189
190config IA64_HP_ZX1_SWIOTLB
191 bool "HP-zx1/sx1000 with software I/O TLB"
Jan Beulichd1598e02007-01-03 09:26:21 +0000192 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 help
194 Build a kernel that runs on HP zx1 and sx1000 systems even when they
195 have broken PCI devices which cannot DMA to full 32 bits. Apart
196 from support for the HP I/O MMU, this includes support for the software
197 I/O TLB, which allows supporting the broken devices at the expense of
198 wasting some kernel memory (about 2MB by default).
199
200config IA64_SGI_SN2
201 bool "SGI-SN2"
Jes Sorensenbd3be242008-02-11 15:10:19 +0100202 select NUMA
203 select ACPI_NUMA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 help
205 Selecting this option will optimize the kernel for use on sn2 based
206 systems, but the resulting kernel binary will not run on other
207 types of ia64 systems. If you have an SGI Altix system, it's safe
208 to select this option. If in doubt, select ia64 generic support
209 instead.
210
Jack Steiner3351ab92008-07-31 07:52:50 -0500211config IA64_SGI_UV
212 bool "SGI-UV"
Jack Steiner22246612008-05-06 15:18:57 -0500213 select NUMA
214 select ACPI_NUMA
215 select SWIOTLB
216 help
217 Selecting this option will optimize the kernel for use on UV based
218 systems, but the resulting kernel binary will not run on other
219 types of ia64 systems. If you have an SGI UV system, it's safe
220 to select this option. If in doubt, select ia64 generic support
221 instead.
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223config IA64_HP_SIM
224 bool "Ski-simulator"
Jan Beulichd1598e02007-01-03 09:26:21 +0000225 select SWIOTLB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900227config IA64_XEN_GUEST
228 bool "Xen guest"
Isaku Yamahata1d5b20f2009-01-16 12:17:30 +0900229 select SWIOTLB
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900230 depends on XEN
Isaku Yamahata1d5b20f2009-01-16 12:17:30 +0900231 help
232 Build a kernel that runs on Xen guest domain. At this moment only
233 16KB page size in supported.
Isaku Yamahataba9cc322008-10-17 11:18:11 +0900234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235endchoice
236
237choice
238 prompt "Processor type"
239 default ITANIUM
240
241config ITANIUM
242 bool "Itanium"
243 help
244 Select your IA-64 processor type. The default is Itanium.
245 This choice is safe for all IA-64 systems, but may not perform
246 optimally on systems with, say, Itanium 2 or newer processors.
247
248config MCKINLEY
249 bool "Itanium 2"
250 help
251 Select this to configure for an Itanium 2 (McKinley) processor.
252
253endchoice
254
255choice
256 prompt "Kernel page size"
257 default IA64_PAGE_SIZE_16KB
258
259config IA64_PAGE_SIZE_4KB
260 bool "4KB"
261 help
262 This lets you select the page size of the kernel. For best IA-64
263 performance, a page size of 8KB or 16KB is recommended. For best
264 IA-32 compatibility, a page size of 4KB should be selected (the vast
265 majority of IA-32 binaries work perfectly fine with a larger page
266 size). For Itanium 2 or newer systems, a page size of 64KB can also
267 be selected.
268
269 4KB For best IA-32 compatibility
270 8KB For best IA-64 performance
271 16KB For best IA-64 performance
272 64KB Requires Itanium 2 or newer processor.
273
274 If you don't know what to do, choose 16KB.
275
276config IA64_PAGE_SIZE_8KB
277 bool "8KB"
278
279config IA64_PAGE_SIZE_16KB
280 bool "16KB"
281
282config IA64_PAGE_SIZE_64KB
283 depends on !ITANIUM
284 bool "64KB"
285
286endchoice
287
Robin Holt837cd0b2005-11-11 09:35:43 -0600288choice
289 prompt "Page Table Levels"
290 default PGTABLE_3
291
292config PGTABLE_3
293 bool "3 Levels"
294
295config PGTABLE_4
296 depends on !IA64_PAGE_SIZE_64KB
297 bool "4 Levels"
298
299endchoice
300
Tony Luck10d0aa32008-02-11 13:23:46 -0800301if IA64_HP_SIM
302config HZ
303 default 32
304endif
305
306if !IA64_HP_SIM
Christoph Lameterb5d23e52005-06-23 00:08:27 -0700307source kernel/Kconfig.hz
Tony Luck10d0aa32008-02-11 13:23:46 -0800308endif
Christoph Lameterb5d23e52005-06-23 00:08:27 -0700309
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310config IA64_BRL_EMU
311 bool
312 depends on ITANIUM
313 default y
314
315# align cache-sensitive data to 128 bytes
316config IA64_L1_CACHE_SHIFT
317 int
318 default "7" if MCKINLEY
319 default "6" if ITANIUM
320
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321config IA64_CYCLONE
322 bool "Cyclone (EXA) Time Source support"
323 help
324 Say Y here to enable support for IBM EXA Cyclone time source.
325 If you're unsure, answer N.
326
327config IOSAPIC
328 bool
329 depends on !IA64_HP_SIM
330 default y
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332config FORCE_MAX_ZONEORDER
Bob Piccoda9577c2005-10-04 15:13:37 -0400333 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
334 range 11 17 if !HUGETLB_PAGE
335 default "17" if HUGETLB_PAGE
336 default "11"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Hidetoshi Setob64f34c2008-01-29 14:27:30 +0900338config VIRT_CPU_ACCOUNTING
339 bool "Deterministic task and CPU time accounting"
340 default n
341 help
342 Select this option to enable more accurate task and CPU time
343 accounting. This is done by reading a CPU counter on each
344 kernel entry and exit and on transitions within the kernel
345 between system, softirq and hardirq state, so there is a
346 small performance impact.
347 If in doubt, say N here.
348
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349config SMP
350 bool "Symmetric multi-processing support"
Jens Axboef27b4332008-06-26 11:22:30 +0200351 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 help
353 This enables support for systems with more than one CPU. If you have
354 a system with only one CPU, say N. If you have a system with more
355 than one CPU, say Y.
356
357 If you say N here, the kernel will run on single and multiprocessor
358 systems, but will use only one CPU of a multiprocessor system. If
359 you say Y here, the kernel will run on many, but not all,
360 single processor systems. On a single processor system, the kernel
361 will run faster if you say N here.
362
Adrian Bunk03502fa2008-02-03 15:50:21 +0200363 See also the SMP-HOWTO available at
364 <http://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
366 If you don't know what to do here, say N.
367
368config NR_CPUS
Robin Holtd1339df2008-08-02 13:29:24 -0500369 int "Maximum number of CPUs (2-4096)"
370 range 2 4096
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 depends on SMP
Robin Holtd1339df2008-08-02 13:29:24 -0500372 default "4096"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 help
374 You should set this to the number of CPUs in your system, but
375 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
376 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
377 than 64 will cause the use of a CPU mask array, causing a small
378 performance hit.
379
380config HOTPLUG_CPU
381 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
382 depends on SMP && EXPERIMENTAL
383 select HOTPLUG
384 default n
385 ---help---
386 Say Y here to experiment with turning CPUs off and on. CPUs
387 can be controlled through /sys/devices/system/cpu/cpu#.
388 Say N if you want to disable CPU hotplug.
389
Yasunori Gotocc576372006-06-29 02:24:27 -0700390config ARCH_ENABLE_MEMORY_HOTPLUG
391 def_bool y
392
KAMEZAWA Hiroyuki0c0e6192007-10-16 01:26:12 -0700393config ARCH_ENABLE_MEMORY_HOTREMOVE
394 def_bool y
395
Suresh Siddha7a9bdd82005-04-05 18:05:00 -0700396config SCHED_SMT
397 bool "SMT scheduler support"
398 depends on SMP
Suresh Siddha7a9bdd82005-04-05 18:05:00 -0700399 help
400 Improves the CPU scheduler's decision making when dealing with
401 Intel IA64 chips with MultiThreading at a cost of slightly increased
402 overhead in some places. If unsure say N here.
403
Ashok Rajff741902005-11-11 14:32:40 -0800404config PERMIT_BSP_REMOVE
405 bool "Support removal of Bootstrap Processor"
406 depends on HOTPLUG_CPU
407 default n
408 ---help---
409 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
410 support.
411
412config FORCE_CPEI_RETARGET
413 bool "Force assumption that CPEI can be re-targetted"
414 depends on PERMIT_BSP_REMOVE
415 default n
416 ---help---
417 Say Y if you need to force the assumption that CPEI can be re-targetted to
418 any cpu in the system. This hint is available via ACPI 3.0 specifications.
419 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
420 This option it useful to enable this feature on older BIOS's as well.
421 You can also enable this by using boot command line option force_cpei=1.
422
Satyam Sharma0b0517a2007-08-13 23:41:45 +0530423source "kernel/Kconfig.preempt"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
Dave Hansen3f22ab22005-06-23 00:07:43 -0700425source "mm/Kconfig"
426
Bob Piccoda9577c2005-10-04 15:13:37 -0400427config ARCH_SELECT_MEMORY_MODEL
428 def_bool y
429
430config ARCH_DISCONTIGMEM_ENABLE
431 def_bool y
432 help
433 Say Y to support efficient handling of discontiguous physical memory,
434 for architectures which are either NUMA (Non-Uniform Memory Access)
435 or have huge holes in the physical address space for other reasons.
436 See <file:Documentation/vm/numa> for more.
437
438config ARCH_FLATMEM_ENABLE
439 def_bool y
440
441config ARCH_SPARSEMEM_ENABLE
442 def_bool y
443 depends on ARCH_DISCONTIGMEM_ENABLE
Christoph Lameteref229c52007-10-16 01:24:15 -0700444 select SPARSEMEM_VMEMMAP_ENABLE
Bob Piccoda9577c2005-10-04 15:13:37 -0400445
446config ARCH_DISCONTIGMEM_DEFAULT
447 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
448 depends on ARCH_DISCONTIGMEM_ENABLE
449
450config NUMA
451 bool "NUMA support"
452 depends on !IA64_HP_SIM && !FLATMEM
453 default y if IA64_SGI_SN2
KAMEZAWA Hiroyuki6c33eb32006-11-08 17:44:50 -0800454 select ACPI_NUMA if ACPI
Bob Piccoda9577c2005-10-04 15:13:37 -0400455 help
456 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
457 Access). This option is for configuring high-end multiprocessor
458 server systems. If in doubt, say N.
459
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700460config NODES_SHIFT
461 int "Max num nodes shift(3-10)"
462 range 3 10
Christoph Lameterc57d68c2006-08-22 19:43:27 -0700463 default "10"
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700464 depends on NEED_MULTIPLE_NODES
465 help
466 This option specifies the maximum number of nodes in your SSI system.
467 MAX_NUMNODES will be 2^(This value).
468 If in doubt, use the default.
469
Mel Gorman05e0caa2006-09-27 01:49:54 -0700470config ARCH_POPULATES_NODE_MAP
471 def_bool y
472
Bob Piccoda9577c2005-10-04 15:13:37 -0400473# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
474# VIRTUAL_MEM_MAP has been retained for historical reasons.
475config VIRTUAL_MEM_MAP
476 bool "Virtual mem map"
477 depends on !SPARSEMEM
478 default y if !IA64_HP_SIM
479 help
480 Say Y to compile the kernel with support for a virtual mem map.
481 This code also only takes effect if a memory hole of greater than
482 1 Gb is found during boot. You must turn this option on if you
483 require the DISCONTIGMEM option for your machine. If you are
484 unsure, say Y.
485
486config HOLES_IN_ZONE
487 bool
488 default y if VIRTUAL_MEM_MAP
489
490config HAVE_ARCH_EARLY_PFN_TO_NID
Tony Luck334f85b62009-02-19 11:22:36 -0800491 def_bool NUMA && SPARSEMEM
Bob Piccoda9577c2005-10-04 15:13:37 -0400492
Yasunori Goto10ad4002006-06-27 02:53:33 -0700493config HAVE_ARCH_NODEDATA_EXTENSION
494 def_bool y
495 depends on NUMA
496
Lee Schermerhorn3bccd992010-05-26 14:44:59 -0700497config USE_PERCPU_NUMA_NODE_ID
498 def_bool y
499 depends on NUMA
500
Lee Schermerhornfd1197f2010-05-26 14:45:01 -0700501config HAVE_MEMORYLESS_NODES
Lee Schermerhorn25106002010-08-09 17:19:00 -0700502 def_bool NUMA
Lee Schermerhornfd1197f2010-05-26 14:45:01 -0700503
KAMEZAWA Hiroyuki94925872009-09-22 16:45:45 -0700504config ARCH_PROC_KCORE_TEXT
505 def_bool y
506 depends on PROC_KCORE
507
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508config IA64_MCA_RECOVERY
509 tristate "MCA recovery from errors other than TLB."
510
511config PERFMON
512 bool "Performance monitor support"
513 help
514 Selects whether support for the IA-64 performance monitor hardware
515 is included in the kernel. This makes some kernel data-structures a
516 little bigger and slows down execution a bit, but it is generally
517 a good idea to turn this on. If you're unsure, say Y.
518
519config IA64_PALINFO
520 tristate "/proc/pal support"
521 help
522 If you say Y here, you are able to get PAL (Processor Abstraction
523 Layer) information in /proc/pal. This contains useful information
524 about the processors in your systems, such as cache and TLB sizes
525 and the PAL firmware version in use.
526
527 To use this option, you have to ensure that the "/proc file system
528 support" (CONFIG_PROC_FS) is enabled, too.
529
Fenghua Yue9ef08b2006-12-08 16:06:01 -0800530config IA64_MC_ERR_INJECT
531 tristate "MC error injection support"
532 help
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200533 Adds support for MC error injection. If enabled, the kernel
534 will provide a sysfs interface for user applications to
535 call MC error injection PAL procedures to inject various errors.
Fenghua Yue9ef08b2006-12-08 16:06:01 -0800536 This is a useful tool for MCA testing.
537
538 If you're unsure, do not select this option.
539
Jes Sorensen466575f2006-01-19 04:54:00 -0500540config SGI_SN
541 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
542
David Mosberger-Tang2ab561a2006-06-21 11:19:22 -0700543config IA64_ESI
544 bool "ESI (Extensible SAL Interface) support"
545 help
546 If you say Y here, support is built into the kernel to
547 make ESI calls. ESI calls are used to support vendor-specific
548 firmware extensions, such as the ability to inject memory-errors
549 for test-purposes. If you're unsure, say N.
550
Bjorn Helgaas28eda5b2007-09-20 14:22:03 -0600551config IA64_HP_AML_NFW
552 bool "Support ACPI AML calls to native firmware"
553 help
554 This driver installs a global ACPI Operation Region handler for
555 region 0xA1. AML methods can use this OpRegion to call arbitrary
556 native firmware functions. The driver installs the OpRegion
557 handler if there is an HPQ5001 device or if the user supplies
558 the "force" module parameter, e.g., with the "aml_nfw.force"
559 kernel command line option.
560
Brent Casavantc1311af2006-04-20 15:38:16 -0500561source "drivers/sn/Kconfig"
562
Zou Nan haia7956112006-12-07 09:51:35 -0800563config KEXEC
564 bool "kexec system call (EXPERIMENTAL)"
565 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
566 help
567 kexec is a system call that implements the ability to shutdown your
568 current kernel, and to start another kernel. It is like a reboot
David Sterba3dde6ad2007-05-09 07:12:20 +0200569 but it is independent of the system firmware. And like a reboot
Zou Nan haia7956112006-12-07 09:51:35 -0800570 you can start any kernel with it, not just Linux.
571
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200572 The name comes from the similarity to the exec system call.
Zou Nan haia7956112006-12-07 09:51:35 -0800573
574 It is an ongoing process to be certain the hardware in a machine
575 is properly shutdown, so do not be surprised if this code does not
576 initially work for you. It may help to enable device hotplugging
577 support. As of this writing the exact hardware interface is
578 strongly in flux, so no good recommendation can be made.
579
580config CRASH_DUMP
Bernhard Wallefb866112008-06-26 14:53:11 +0200581 bool "kernel crash dumps"
582 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
Zou Nan haia7956112006-12-07 09:51:35 -0800583 help
584 Generate crash dump after being started by kexec.
585
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586source "drivers/firmware/Kconfig"
587
588source "fs/Kconfig.binfmt"
589
590endmenu
591
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600592menu "Power management and ACPI options"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
Len Browneb7b6b32005-08-25 12:08:25 -0400594source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
596source "drivers/acpi/Kconfig"
597
Venkatesh Pallipadi4db86992005-07-29 16:15:00 -0700598if PM
599
600source "arch/ia64/kernel/cpufreq/Kconfig"
601
602endif
603
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604endmenu
605
606if !IA64_HP_SIM
607
608menu "Bus options (PCI, PCMCIA)"
609
610config PCI
611 bool "PCI support"
612 help
Christoph Hellwig85f265d2005-08-09 13:38:00 -0700613 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
614 here unless you are using a simulator without PCI support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
616config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600617 def_bool PCI
618
619config PCI_SYSCALL
620 def_bool PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Kenji Kaneshigeb7bb5752006-04-28 11:50:43 +0900622source "drivers/pci/pcie/Kconfig"
623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624source "drivers/pci/Kconfig"
625
626source "drivers/pci/hotplug/Kconfig"
627
628source "drivers/pcmcia/Kconfig"
629
Fenghua Yu62fdd762008-10-17 12:14:13 -0700630config DMAR
631 bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
632 depends on IA64_GENERIC && ACPI && EXPERIMENTAL
633 help
634 DMA remapping (DMAR) devices support enables independent address
635 translations for Direct Memory Access (DMA) from devices.
636 These DMA remapping devices are reported via ACPI tables
637 and include PCI device scope covered by these DMA
638 remapping devices.
639
Kyle McMartin6b1ff032009-02-14 04:11:29 -0500640config DMAR_DEFAULT_ON
641 def_bool y
642 prompt "Enable DMA Remapping Devices by default"
643 depends on DMAR
644 help
645 Selecting this option will enable a DMAR device at boot time if
646 one is found. If this option is not selected, DMAR support can
647 be enabled by passing intel_iommu=on to the kernel. It is
648 recommended you say N here while the DMAR code remains
649 experimental.
650
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651endmenu
652
653endif
654
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700655source "net/Kconfig"
656
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657source "drivers/Kconfig"
658
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600659source "arch/ia64/hp/sim/Kconfig"
660
Jes Sorensen1a4b0fc2006-11-10 12:27:49 -0800661config MSPEC
662 tristate "Memory special operations driver"
663 depends on IA64
664 select IA64_UNCACHED_ALLOCATOR
665 help
666 If you have an ia64 and you want to enable memory special
667 operations support (formerly known as fetchop), say Y here,
668 otherwise say N.
669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670source "fs/Kconfig"
671
Bjorn Helgaas1547a012008-11-06 10:53:54 -0600672source "arch/ia64/Kconfig.debug"
673
674source "security/Kconfig"
675
676source "crypto/Kconfig"
677
Xiantao Zhangb6939192008-03-28 14:58:47 +0800678source "arch/ia64/kvm/Kconfig"
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680source "lib/Kconfig"
681
682#
683# Use the generic interrupt handling code in kernel/irq/:
684#
685config GENERIC_HARDIRQS
686 bool
687 default y
688
689config GENERIC_IRQ_PROBE
690 bool
691 default y
692
Ashok Raj54d5d422005-09-06 15:16:15 -0700693config GENERIC_PENDING_IRQ
694 bool
695 depends on GENERIC_HARDIRQS && SMP
696 default y
697
Ingo Molnar0d7012a2006-06-29 02:24:43 -0700698config IRQ_PER_CPU
699 bool
700 default y
701
FUJITA Tomonorib34eb532008-03-28 14:27:03 -0700702config IOMMU_HELPER
FUJITA Tomonoria8522502008-04-29 00:59:36 -0700703 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
Joerg Roedel1aaf1182008-11-26 17:25:13 +0100704
705config IOMMU_API
706 def_bool (DMAR)