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Paul Mackerras14cf11a2005-09-26 16:04:21 +10001# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4
5mainmenu "Linux/PowerPC Kernel Configuration"
6
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10007source "arch/powerpc/platforms/Kconfig.cputype"
Johannes Berg17e638b2007-03-19 11:53:53 +01008
Paul Mackerras14cf11a2005-09-26 16:04:21 +10009config PPC32
10 bool
11 default y if !PPC64
12
13config 64BIT
14 bool
15 default y if PPC64
16
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100017config WORD_SIZE
18 int
19 default 64 if PPC64
20 default 32 if !PPC64
21
Paul Mackerras14cf11a2005-09-26 16:04:21 +100022config PPC_MERGE
23 def_bool y
24
25config MMU
26 bool
27 default y
28
Tony Breedsaa3be5f2007-09-21 13:26:02 +100029config GENERIC_CMOS_UPDATE
30 def_bool y
31
Tony Breeds4a4cfe32007-09-22 07:35:52 +100032config GENERIC_TIME
33 def_bool y
34
35config GENERIC_TIME_VSYSCALL
36 def_bool y
37
Tony Breedsd831d0b2007-09-21 13:26:03 +100038config GENERIC_CLOCKEVENTS
39 def_bool y
40
Paul Mackerras14cf11a2005-09-26 16:04:21 +100041config GENERIC_HARDIRQS
42 bool
43 default y
44
travis@sgi.com988c3882008-01-30 23:27:58 +010045config HAVE_SETUP_PER_CPU_AREA
travis@sgi.comb32ef632008-01-30 13:32:51 +010046 def_bool PPC64
47
Ingo Molnar0d7012a2006-06-29 02:24:43 -070048config IRQ_PER_CPU
49 bool
50 default y
51
Christoph Hellwigfd3e0bb2008-04-17 14:35:00 +100052config STACKTRACE_SUPPORT
53 bool
54 default y
55
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100056config TRACE_IRQFLAGS_SUPPORT
57 bool
58 depends on PPC64
59 default y
60
61config LOCKDEP_SUPPORT
62 bool
63 default y
64
Paul Mackerras14cf11a2005-09-26 16:04:21 +100065config RWSEM_GENERIC_SPINLOCK
66 bool
67
68config RWSEM_XCHGADD_ALGORITHM
69 bool
70 default y
71
Nick Piggin95c354f2008-01-30 13:31:20 +010072config GENERIC_LOCKBREAK
73 bool
74 default y
75 depends on SMP && PREEMPT
76
David Howellsf0d1b0b2006-12-08 02:37:49 -080077config ARCH_HAS_ILOG2_U32
78 bool
David Howellsef55d532006-12-08 02:37:53 -080079 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080080
81config ARCH_HAS_ILOG2_U64
82 bool
David Howellsef55d532006-12-08 02:37:53 -080083 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080084
Akinobu Mitae779b2f2006-03-26 01:39:33 -080085config GENERIC_HWEIGHT
86 bool
87 default y
88
Paul Mackerras14cf11a2005-09-26 16:04:21 +100089config GENERIC_CALIBRATE_DELAY
90 bool
91 default y
92
Jon Mason0a9cb462006-05-19 15:35:32 -050093config GENERIC_FIND_NEXT_BIT
94 bool
95 default y
96
Anton Vorontsovb7ce3412008-04-11 23:06:36 +100097config GENERIC_GPIO
98 bool
99 help
100 Generic GPIO API support
101
Stephen Rothwellf057eac2007-07-15 23:40:05 -0700102config ARCH_NO_VIRT_TO_BUS
103 def_bool PPC64
104
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000105config PPC
106 bool
107 default y
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100108 select HAVE_IDE
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -0500109 select HAVE_OPROFILE
Mathieu Desnoyers3f550092008-02-02 15:10:35 -0500110 select HAVE_KPROBES
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -0800111 select HAVE_KRETPROBES
David S. Millerd9b2b2a2008-02-13 16:56:49 -0800112 select HAVE_LMB
Mark Nelson3affedc2008-07-05 05:05:42 +1000113 select HAVE_DMA_ATTRS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000114
115config EARLY_PRINTK
116 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100117 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000118
119config COMPAT
120 bool
121 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800122 select COMPAT_BINFMT_ELF
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000123
124config SYSVIPC_COMPAT
125 bool
126 depends on COMPAT && SYSVIPC
127 default y
128
129# All PPC32s use generic nvram driver through ppc_md
130config GENERIC_NVRAM
131 bool
132 default y if PPC32
133
134config SCHED_NO_NO_OMIT_FRAME_POINTER
135 bool
136 default y
137
138config ARCH_MAY_HAVE_PC_FDC
139 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100140 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000141
Kumar Gala08264cb2006-01-10 21:43:56 -0600142config PPC_OF
143 def_bool y
144
Stephen Rothwell97e873e2007-05-01 16:26:07 +1000145config OF
146 def_bool y
147
Kumar Gala08264cb2006-01-10 21:43:56 -0600148config PPC_UDBG_16550
149 bool
150 default n
151
Kumar Gala08264cb2006-01-10 21:43:56 -0600152config GENERIC_TBSYNC
153 bool
154 default y if PPC32 && SMP
155 default n
156
Al Viroe65e1fc2006-09-12 03:04:40 -0400157config AUDIT_ARCH
158 bool
159 default y
160
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800161config GENERIC_BUG
162 bool
163 default y
164 depends on BUG
165
Johannes Bergb3028872007-03-20 05:18:02 +1100166config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500167 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100168 bool
169
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600170config DEFAULT_UIMAGE
171 bool
172 help
173 Used to allow a board to specify it wants a uImage built by default
174 default n
175
Scott Woodb09c1642008-01-17 16:31:40 -0600176config REDBOOT
177 bool
178
Johannes Berg801e4062007-12-08 02:12:39 +0100179config HIBERNATE_32
Johannes Berg543b9fd2007-05-03 22:31:38 +1000180 bool
Johannes Berg801e4062007-12-08 02:12:39 +0100181 depends on (PPC_PMAC && !SMP) || BROKEN
182 default y
183
184config HIBERNATE_64
185 bool
186 depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
187 default y
188
189config ARCH_HIBERNATION_POSSIBLE
190 bool
191 depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
Johannes Berg543b9fd2007-05-03 22:31:38 +1000192 default y
193
Johannes Bergf4cb5702007-12-08 02:14:00 +0100194config ARCH_SUSPEND_POSSIBLE
195 def_bool y
196 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200
197
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100198config PPC_DCR_NATIVE
199 bool
200 default n
201
202config PPC_DCR_MMIO
203 bool
204 default n
205
206config PPC_DCR
207 bool
208 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
209 default y
210
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100211config PPC_OF_PLATFORM_PCI
212 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100213 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100214 depends on PPC64 # not supported on 32 bits yet
215 default n
216
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000217source "init/Kconfig"
218
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100219source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500220source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000221
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000222menu "Kernel options"
223
224config HIGHMEM
225 bool "High memory support"
226 depends on PPC32
227
Tony Breeds1ad74992007-09-21 13:26:03 +1000228source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000229source kernel/Kconfig.hz
230source kernel/Kconfig.preempt
231source "fs/Kconfig.binfmt"
232
Mel Gormanba72cb82007-11-28 16:21:13 -0800233config HUGETLB_PAGE_SIZE_VARIABLE
234 bool
235 depends on HUGETLB_PAGE
236 default y
237
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000238config MATH_EMULATION
239 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600240 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000241 ---help---
242 Some PowerPC chips designed for embedded applications do not have
243 a floating-point unit and therefore do not implement the
244 floating-point instructions in the PowerPC instruction set. If you
245 say Y here, the kernel will include code to emulate a floating-point
246 unit, which will allow programs that use floating-point
247 instructions to run.
248
Scott Wood5dd57a12007-09-18 15:29:35 -0500249config 8XX_MINIMAL_FPEMU
250 bool "Minimal math emulation for 8xx"
251 depends on 8xx && !MATH_EMULATION
252 help
253 Older arch/ppc kernels still emulated a few floating point
254 instructions such as load and store, even when full math
255 emulation is disabled. Say "Y" here if you want to preserve
256 this behavior.
257
258 It is recommended that you build a soft-float userspace instead.
259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000260config IOMMU_VMERGE
Linas Vepstas768cc2d2007-07-18 02:09:35 +1000261 bool "Enable IOMMU virtual merging"
262 depends on PPC64
263 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000264 help
265 Cause IO segments sent to a device for DMA to be merged virtually
266 by the IOMMU when they happen to have been allocated contiguously.
267 This doesn't add pressure to the IOMMU allocator. However, some
268 drivers don't support getting large merged segments coming back
Linas Vepstas768cc2d2007-07-18 02:09:35 +1000269 from *_map_sg().
270
271 Most drivers don't have this problem; it is safe to say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000272
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800273config IOMMU_HELPER
274 def_bool PPC64
275
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000276config HOTPLUG_CPU
277 bool "Support for enabling/disabling CPUs"
278 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
279 ---help---
280 Say Y here to be able to disable and re-enable individual
281 CPUs at runtime on SMP machines.
282
283 Say N if you are unsure.
284
Yasunori Gotocc576372006-06-29 02:24:27 -0700285config ARCH_ENABLE_MEMORY_HOTPLUG
286 def_bool y
287
Badari Pulavartya99824f2008-02-05 00:10:18 -0800288config ARCH_HAS_WALK_MEMORY
289 def_bool y
290
Badari Pulavarty14824712008-02-05 00:10:17 -0800291config ARCH_ENABLE_MEMORY_HOTREMOVE
292 def_bool y
293
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000294config KEXEC
295 bool "kexec system call (EXPERIMENTAL)"
Dale Farnsworthfd4ba7e2007-05-12 10:58:43 +1000296 depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000297 help
298 kexec is a system call that implements the ability to shutdown your
299 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400300 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000301 you can start any kernel with it, not just Linux.
302
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400303 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000304
305 It is an ongoing process to be certain the hardware in a machine
306 is properly shutdown, so do not be surprised if this code does not
307 initially work for you. It may help to enable device hotplugging
308 support. As of this writing the exact hardware interface is
309 strongly in flux, so no good recommendation can be made.
310
Haren Mynenie8625d462006-01-14 13:48:25 -0800311config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000312 bool "Build a kdump crash kernel"
313 depends on PPC_MULTIPLATFORM && PPC64
Haren Mynenie8625d462006-01-14 13:48:25 -0800314 help
315 Build a kernel suitable for use as a kdump capture kernel.
316 The kernel will be linked at a different address than normal, and
317 so can only be used for Kdump.
318
319 Don't change this unless you know what you are doing.
320
Manish Ahuja242f2712008-03-22 10:50:50 +1100321config PHYP_DUMP
322 bool "Hypervisor-assisted dump (EXPERIMENTAL)"
323 depends on PPC_PSERIES && EXPERIMENTAL
324 help
325 Hypervisor-assisted dump is meant to be a kdump replacement
326 offering robustness and speed not possible without system
327 hypervisor assistence.
328
329 If unsure, say "N"
330
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000331config PPCBUG_NVRAM
332 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
333 default y if PPC_PREP
334
335config IRQ_ALL_CPUS
336 bool "Distribute interrupts on all CPUs by default"
337 depends on SMP && !MV64360
338 help
339 This option gives the kernel permission to distribute IRQs across
340 multiple CPUs. Saying N here will route all IRQs to the first
341 CPU. Generally saying Y is safe, although some problems have been
342 reported with SMP Power Macintoshes with this option enabled.
343
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700344config NUMA
345 bool "NUMA support"
346 depends on PPC64
347 default y if SMP && PPC_PSERIES
348
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700349config NODES_SHIFT
350 int
351 default "4"
352 depends on NEED_MULTIPLE_NODES
353
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000354config ARCH_SELECT_MEMORY_MODEL
355 def_bool y
356 depends on PPC64
357
358config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000359 def_bool y
360 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000361
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000362config ARCH_SPARSEMEM_ENABLE
363 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000364 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700365 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100366
367config ARCH_SPARSEMEM_DEFAULT
368 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100369 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000370
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700371config ARCH_POPULATES_NODE_MAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000372 def_bool y
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700373
374source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000375
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800376config ARCH_MEMORY_PROBE
377 def_bool y
378 depends on MEMORY_HOTPLUG
379
Andy Whitcroft75167952006-10-21 10:24:14 -0700380# Some NUMA nodes have memory ranges that span
381# other nodes. Even though a pfn is valid and
382# between a node's start and end pfns, it may not
383# reside on that node. See memmap_init_zone()
384# for details.
385config NODES_SPAN_OTHER_NODES
386 def_bool y
387 depends on NEED_MULTIPLE_NODES
388
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000389config PPC_HAS_HASH_64K
390 bool
391 depends on PPC64
392 default n
393
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100394config PPC_64K_PAGES
395 bool "64k page size"
Benjamin Herrenschmidt863c84b2005-11-07 00:57:58 -0800396 depends on PPC64
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000397 select PPC_HAS_HASH_64K
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100398 help
399 This option changes the kernel logical page size to 64k. On machines
Kumar Gala98750262007-04-12 18:01:34 -0500400 without processor support for 64k pages, the kernel will simulate
401 them by loading each individual 4k page on demand transparently,
402 while on hardware with such support, it will be used to map
403 normal application pages.
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100404
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000405config FORCE_MAX_ZONEORDER
406 int "Maximum zone order"
407 default "9" if PPC_64K_PAGES
408 default "13" if PPC64 && !PPC_64K_PAGES
409 default "11"
410 help
411 The kernel memory allocator divides physically contiguous memory
412 blocks into "zones", where each zone is a power of two number of
413 pages. This option selects the largest power of two that the kernel
414 keeps in the memory allocator. If you need to allocate very large
415 blocks of physically contiguous memory, then you may need to
416 increase this value.
417
418 This config option is actually maximum order plus one. For example,
419 a value of 11 means that the largest free memory block is 2^10 pages.
420
421 The page size is not necessarily 4KB. For example, on 64-bit
422 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
423 this in mind when choosing a value for this option.
424
Paul Mackerrasfa282372008-01-24 08:35:13 +1100425config PPC_SUBPAGE_PROT
426 bool "Support setting protections for 4k subpages"
427 depends on PPC_64K_PAGES
428 help
429 This option adds support for a system call to allow user programs
430 to set access permissions (read/write, readonly, or no access)
431 on the 4k subpages of each 64k page.
432
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000433config SCHED_SMT
434 bool "SMT (Hyperthreading) scheduler support"
435 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000436 help
437 SMT scheduler support improves the CPU scheduler's decision making
438 when dealing with POWER5 cpus at a cost of slightly increased
439 overhead in some places. If unsure say N here.
440
441config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000442 bool "Support for device tree in /proc"
443 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000444 help
445 This option adds a device-tree directory under /proc which contains
446 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000447 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000448
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000449config CMDLINE_BOOL
450 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000451
452config CMDLINE
453 string "Initial kernel command string"
454 depends on CMDLINE_BOOL
455 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
456 help
457 On some platforms, there is currently no way for the boot loader to
458 pass arguments to the kernel. For these platforms, you can supply
459 some command-line options at build time by entering them here. In
460 most cases you will need to specify the root device here.
461
462if !44x || BROKEN
Johannes Bergb28f5082008-01-15 23:17:00 -0500463config ARCH_WANTS_FREEZER_CONTROL
464 def_bool y
465 depends on ADB_PMU
466
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000467source kernel/power/Kconfig
468endif
469
470config SECCOMP
471 bool "Enable seccomp to safely compute untrusted bytecode"
472 depends on PROC_FS
473 default y
474 help
475 This kernel feature is useful for number crunching applications
476 that may need to compute untrusted bytecode during their
477 execution. By using pipes or other transports made available to
478 the process as file descriptors supporting the read/write
479 syscalls, it's possible to isolate those applications in
480 their own address space using seccomp. Once seccomp is
481 enabled via /proc/<pid>/seccomp, it cannot be disabled
482 and the task is only allowed to execute a few safe syscalls
483 defined by each seccomp mode.
484
485 If unsure, say Y. Only embedded should say N here.
486
487endmenu
488
489config ISA_DMA_API
490 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100491 default !PPC_ISERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000492
493menu "Bus options"
494
495config ISA
496 bool "Support for ISA-bus hardware"
497 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000498 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000499 help
500 Find out whether you have ISA slots on your motherboard. ISA is the
501 name of a bus system, i.e. the way the CPU talks to the other stuff
502 inside your box. If you have an Apple machine, say N here; if you
503 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
504 you have an embedded board, consult your board documentation.
505
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800506config ZONE_DMA
507 bool
508 default y
509
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000510config GENERIC_ISA_DMA
511 bool
512 depends on PPC64 || POWER4 || 6xx && !CPM2
513 default y
514
Paul Mackerras25635c72005-10-26 16:36:55 +1000515config PPC_INDIRECT_PCI
516 bool
517 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600518 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000519 default n
520
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000521config EISA
522 bool
523
524config SBUS
525 bool
526
Kumar Gala08264cb2006-01-10 21:43:56 -0600527config FSL_SOC
528 bool
529
Roy Zang55c44992007-07-10 18:44:34 +0800530config FSL_PCI
531 bool
532 select PPC_INDIRECT_PCI
533
Stefan Roese2a706912008-03-26 22:39:50 +1100534config 4xx_SOC
535 bool
536
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400537config FSL_LBC
538 bool
539 help
540 Freescale Localbus support
541
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400542config FSL_GTM
543 bool
544 depends on PPC_83xx || QUICC_ENGINE || CPM2
545 help
546 Freescale General-purpose Timers support
547
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000548# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
549config MCA
550 bool
551
552config PCI
Jon Loeliger53158622006-08-09 10:37:28 -0500553 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
Stephen Rothwellbed59272007-03-04 17:04:44 +1100554 || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
Sean MacLennanf9bdedb2008-01-22 04:55:29 +1100555 || PPC_PS3 || 44x
John Rigbye177edc2008-01-29 04:28:53 +1100556 default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
Jon Loeliger53158622006-08-09 10:37:28 -0500557 && !PPC_85xx && !PPC_86xx
David Gibsonf21f49e2007-06-13 14:52:54 +1000558 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000559 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000560 select ARCH_SUPPORTS_MSI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000561 help
562 Find out whether your system includes a PCI bus. PCI is the name of
563 a bus system, i.e. the way the CPU talks to the other stuff inside
564 your box. If you say Y here, the kernel will include drivers and
565 infrastructure code to support PCI bus devices.
566
567config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600568 def_bool PCI
569
570config PCI_SYSCALL
571 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000572
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000573config PCI_QSPAN
574 bool "QSpan PCI"
575 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000576 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000577 help
578 Say Y here if you have a system based on a Motorola 8xx-series
579 embedded processor with a QSPAN PCI interface, otherwise say N.
580
581config PCI_8260
582 bool
583 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000584 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000585 default y
586
587config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700588 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500589 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000590 default y
591
592choice
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700593 prompt "IDMA channel for PCI 9 workaround"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000594 depends on 8260_PCI9
595
596config 8260_PCI9_IDMA1
597 bool "IDMA1"
598
599config 8260_PCI9_IDMA2
600 bool "IDMA2"
601
602config 8260_PCI9_IDMA3
603 bool "IDMA3"
604
605config 8260_PCI9_IDMA4
606 bool "IDMA4"
607
608endchoice
609
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500610source "drivers/pci/pcie/Kconfig"
611
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000612source "drivers/pci/Kconfig"
613
614source "drivers/pcmcia/Kconfig"
615
616source "drivers/pci/hotplug/Kconfig"
617
Zhang Weif1f389d2008-04-18 13:33:39 -0700618config HAS_RAPIDIO
619 bool
620 default n
621
622config RAPIDIO
623 bool "RapidIO support"
624 depends on HAS_RAPIDIO
625 help
626 If you say Y here, the kernel will include drivers and
627 infrastructure code to support RapidIO interconnect devices.
628
629source "drivers/rapidio/Kconfig"
630
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000631endmenu
632
633menu "Advanced setup"
634 depends on PPC32
635
636config ADVANCED_OPTIONS
637 bool "Prompt for advanced kernel configuration options"
638 help
639 This option will enable prompting for a variety of advanced kernel
640 configuration options. These options can cause the kernel to not
641 work if they are set incorrectly, but can be used to optimize certain
642 aspects of kernel memory management.
643
644 Unless you know what you are doing, say N here.
645
646comment "Default settings for advanced configuration options are used"
647 depends on !ADVANCED_OPTIONS
648
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000649config LOWMEM_SIZE_BOOL
650 bool "Set maximum low memory"
651 depends on ADVANCED_OPTIONS
652 help
653 This option allows you to set the maximum amount of memory which
654 will be used as "low memory", that is, memory which the kernel can
655 access directly, without having to set up a kernel virtual mapping.
656 This can be useful in optimizing the layout of kernel virtual
657 memory.
658
659 Say N here unless you know what you are doing.
660
661config LOWMEM_SIZE
662 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
663 default "0x30000000"
664
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000665config RELOCATABLE
666 bool "Build a relocatable kernel (EXPERIMENTAL)"
667 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
668 help
669 This builds a kernel image that is capable of running at the
670 location the kernel is loaded at (some alignment restrictions may
671 exist).
672
673 One use is for the kexec on panic case where the recovery kernel
674 must live at a different physical address than the primary
675 kernel.
676
677 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
678 it has been loaded at and the compile time physical addresses
679 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
680 setting can still be useful to bootwrappers that need to know the
681 load location of the kernel (eg. u-boot/mkimage).
682
683config PAGE_OFFSET_BOOL
684 bool "Set custom page offset address"
685 depends on ADVANCED_OPTIONS
686 help
687 This option allows you to set the kernel virtual address at which
688 the kernel will map low memory. This can be useful in optimizing
689 the virtual memory layout of the system.
690
691 Say N here unless you know what you are doing.
692
693config PAGE_OFFSET
694 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
695 default "0xc0000000"
696
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000697config KERNEL_START_BOOL
698 bool "Set custom kernel base address"
699 depends on ADVANCED_OPTIONS
700 help
701 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000702 the kernel will be loaded. Normally this should match PAGE_OFFSET
703 however there are times (like kdump) that one might not want them
704 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000705
706 Say N here unless you know what you are doing.
707
708config KERNEL_START
709 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000710 default PAGE_OFFSET if PAGE_OFFSET_BOOL
711 default "0xc2000000" if CRASH_DUMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000712 default "0xc0000000"
713
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000714config PHYSICAL_START_BOOL
715 bool "Set physical address where the kernel is loaded"
716 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
717 help
718 This gives the physical address where the kernel is loaded.
719
720 Say N here unless you know what you are doing.
721
722config PHYSICAL_START
723 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
724 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP
725 default "0x00000000"
726
727config PHYSICAL_ALIGN
728 hex
729 default "0x10000000" if FSL_BOOKE
730 help
731 This value puts the alignment restrictions on physical address
732 where kernel is loaded and run from. Kernel is compiled for an
733 address which meets above alignment restriction.
734
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000735config TASK_SIZE_BOOL
736 bool "Set custom user task size"
737 depends on ADVANCED_OPTIONS
738 help
739 This option allows you to set the amount of virtual address space
740 allocated to user tasks. This can be useful in optimizing the
741 virtual memory layout of the system.
742
743 Say N here unless you know what you are doing.
744
745config TASK_SIZE
746 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500747 default "0x80000000" if PPC_PREP || PPC_8xx
748 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000749
750config CONSISTENT_START_BOOL
751 bool "Set custom consistent memory pool address"
752 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
753 help
754 This option allows you to set the base virtual address
Matt LaPlante4b3f6862006-10-03 22:21:02 +0200755 of the consistent memory pool. This pool of virtual
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000756 memory is used to make consistent memory allocations.
757
758config CONSISTENT_START
759 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
Scott Woodccf0d682007-07-16 11:28:18 -0500760 default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000761 default "0xff100000" if NOT_COHERENT_CACHE
762
763config CONSISTENT_SIZE_BOOL
764 bool "Set custom consistent memory pool size"
765 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
766 help
Matt LaPlante4b3f6862006-10-03 22:21:02 +0200767 This option allows you to set the size of the
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000768 consistent memory pool. This pool of virtual memory
769 is used to make consistent memory allocations.
770
771config CONSISTENT_SIZE
772 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
773 default "0x00200000" if NOT_COHERENT_CACHE
774
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000775config PIN_TLB
776 bool "Pinned Kernel TLBs (860 ONLY)"
777 depends on ADVANCED_OPTIONS && 8xx
778endmenu
779
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000780if PPC64
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000781config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000782 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000783 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000784config KERNEL_START
785 hex
786 default "0xc000000002000000" if CRASH_DUMP
787 default "0xc000000000000000"
788config PHYSICAL_START
789 hex
790 default "0x02000000" if CRASH_DUMP
791 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000792endif
793
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000794source "net/Kconfig"
795
796source "drivers/Kconfig"
797
798source "fs/Kconfig"
799
800# XXX source "arch/ppc/8xx_io/Kconfig"
801
802# XXX source "arch/ppc/8260_io/Kconfig"
803
Li Yang98658532006-10-03 23:10:46 -0500804source "arch/powerpc/sysdev/qe_lib/Kconfig"
805
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000806source "lib/Kconfig"
807
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000808source "arch/powerpc/Kconfig.debug"
809
810source "security/Kconfig"
811
812config KEYS_COMPAT
813 bool
814 depends on COMPAT && KEYS
815 default y
816
817source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +1000818
819config PPC_CLOCK
820 bool
821 default n
Sylvain Munaut1088a202007-09-16 20:53:25 +1000822
823config PPC_LIB_RHEAP
824 bool
825
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500826source "arch/powerpc/kvm/Kconfig"