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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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000113
114config EARLY_PRINTK
115 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100116 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000117
118config COMPAT
119 bool
120 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800121 select COMPAT_BINFMT_ELF
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000122
123config SYSVIPC_COMPAT
124 bool
125 depends on COMPAT && SYSVIPC
126 default y
127
128# All PPC32s use generic nvram driver through ppc_md
129config GENERIC_NVRAM
130 bool
131 default y if PPC32
132
133config SCHED_NO_NO_OMIT_FRAME_POINTER
134 bool
135 default y
136
137config ARCH_MAY_HAVE_PC_FDC
138 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100139 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000140
Kumar Gala08264cb2006-01-10 21:43:56 -0600141config PPC_OF
142 def_bool y
143
Stephen Rothwell97e873e2007-05-01 16:26:07 +1000144config OF
145 def_bool y
146
Kumar Gala08264cb2006-01-10 21:43:56 -0600147config PPC_UDBG_16550
148 bool
149 default n
150
Kumar Gala08264cb2006-01-10 21:43:56 -0600151config GENERIC_TBSYNC
152 bool
153 default y if PPC32 && SMP
154 default n
155
Al Viroe65e1fc2006-09-12 03:04:40 -0400156config AUDIT_ARCH
157 bool
158 default y
159
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800160config GENERIC_BUG
161 bool
162 default y
163 depends on BUG
164
Johannes Bergb3028872007-03-20 05:18:02 +1100165config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500166 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100167 bool
168
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600169config DEFAULT_UIMAGE
170 bool
171 help
172 Used to allow a board to specify it wants a uImage built by default
173 default n
174
Scott Woodb09c1642008-01-17 16:31:40 -0600175config REDBOOT
176 bool
177
Johannes Berg801e4062007-12-08 02:12:39 +0100178config HIBERNATE_32
Johannes Berg543b9fd2007-05-03 22:31:38 +1000179 bool
Johannes Berg801e4062007-12-08 02:12:39 +0100180 depends on (PPC_PMAC && !SMP) || BROKEN
181 default y
182
183config HIBERNATE_64
184 bool
185 depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
186 default y
187
188config ARCH_HIBERNATION_POSSIBLE
189 bool
190 depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
Johannes Berg543b9fd2007-05-03 22:31:38 +1000191 default y
192
Johannes Bergf4cb5702007-12-08 02:14:00 +0100193config ARCH_SUSPEND_POSSIBLE
194 def_bool y
195 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200
196
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100197config PPC_DCR_NATIVE
198 bool
199 default n
200
201config PPC_DCR_MMIO
202 bool
203 default n
204
205config PPC_DCR
206 bool
207 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
208 default y
209
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100210config PPC_OF_PLATFORM_PCI
211 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100212 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100213 depends on PPC64 # not supported on 32 bits yet
214 default n
215
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000216source "init/Kconfig"
217
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100218source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500219source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000220
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000221menu "Kernel options"
222
223config HIGHMEM
224 bool "High memory support"
225 depends on PPC32
226
Tony Breeds1ad74992007-09-21 13:26:03 +1000227source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000228source kernel/Kconfig.hz
229source kernel/Kconfig.preempt
230source "fs/Kconfig.binfmt"
231
Mel Gormanba72cb82007-11-28 16:21:13 -0800232config HUGETLB_PAGE_SIZE_VARIABLE
233 bool
234 depends on HUGETLB_PAGE
235 default y
236
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000237config MATH_EMULATION
238 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600239 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000240 ---help---
241 Some PowerPC chips designed for embedded applications do not have
242 a floating-point unit and therefore do not implement the
243 floating-point instructions in the PowerPC instruction set. If you
244 say Y here, the kernel will include code to emulate a floating-point
245 unit, which will allow programs that use floating-point
246 instructions to run.
247
Scott Wood5dd57a12007-09-18 15:29:35 -0500248config 8XX_MINIMAL_FPEMU
249 bool "Minimal math emulation for 8xx"
250 depends on 8xx && !MATH_EMULATION
251 help
252 Older arch/ppc kernels still emulated a few floating point
253 instructions such as load and store, even when full math
254 emulation is disabled. Say "Y" here if you want to preserve
255 this behavior.
256
257 It is recommended that you build a soft-float userspace instead.
258
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000259config IOMMU_VMERGE
Linas Vepstas768cc2d2007-07-18 02:09:35 +1000260 bool "Enable IOMMU virtual merging"
261 depends on PPC64
262 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000263 help
264 Cause IO segments sent to a device for DMA to be merged virtually
265 by the IOMMU when they happen to have been allocated contiguously.
266 This doesn't add pressure to the IOMMU allocator. However, some
267 drivers don't support getting large merged segments coming back
Linas Vepstas768cc2d2007-07-18 02:09:35 +1000268 from *_map_sg().
269
270 Most drivers don't have this problem; it is safe to say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000271
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800272config IOMMU_HELPER
273 def_bool PPC64
274
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000275config HOTPLUG_CPU
276 bool "Support for enabling/disabling CPUs"
277 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
278 ---help---
279 Say Y here to be able to disable and re-enable individual
280 CPUs at runtime on SMP machines.
281
282 Say N if you are unsure.
283
Yasunori Gotocc576372006-06-29 02:24:27 -0700284config ARCH_ENABLE_MEMORY_HOTPLUG
285 def_bool y
286
Badari Pulavartya99824f2008-02-05 00:10:18 -0800287config ARCH_HAS_WALK_MEMORY
288 def_bool y
289
Badari Pulavarty14824712008-02-05 00:10:17 -0800290config ARCH_ENABLE_MEMORY_HOTREMOVE
291 def_bool y
292
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000293config KEXEC
294 bool "kexec system call (EXPERIMENTAL)"
Dale Farnsworthfd4ba7e2007-05-12 10:58:43 +1000295 depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000296 help
297 kexec is a system call that implements the ability to shutdown your
298 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400299 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000300 you can start any kernel with it, not just Linux.
301
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400302 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000303
304 It is an ongoing process to be certain the hardware in a machine
305 is properly shutdown, so do not be surprised if this code does not
306 initially work for you. It may help to enable device hotplugging
307 support. As of this writing the exact hardware interface is
308 strongly in flux, so no good recommendation can be made.
309
Haren Mynenie8625d462006-01-14 13:48:25 -0800310config CRASH_DUMP
Michael Ellermancd9c99d2006-03-10 15:01:08 +1100311 bool "Build a kdump crash kernel (EXPERIMENTAL)"
Haren Mynenie8625d462006-01-14 13:48:25 -0800312 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
313 help
314 Build a kernel suitable for use as a kdump capture kernel.
315 The kernel will be linked at a different address than normal, and
316 so can only be used for Kdump.
317
318 Don't change this unless you know what you are doing.
319
Manish Ahuja242f2712008-03-22 10:50:50 +1100320config PHYP_DUMP
321 bool "Hypervisor-assisted dump (EXPERIMENTAL)"
322 depends on PPC_PSERIES && EXPERIMENTAL
323 help
324 Hypervisor-assisted dump is meant to be a kdump replacement
325 offering robustness and speed not possible without system
326 hypervisor assistence.
327
328 If unsure, say "N"
329
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000330config PPCBUG_NVRAM
331 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
332 default y if PPC_PREP
333
334config IRQ_ALL_CPUS
335 bool "Distribute interrupts on all CPUs by default"
336 depends on SMP && !MV64360
337 help
338 This option gives the kernel permission to distribute IRQs across
339 multiple CPUs. Saying N here will route all IRQs to the first
340 CPU. Generally saying Y is safe, although some problems have been
341 reported with SMP Power Macintoshes with this option enabled.
342
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700343config NUMA
344 bool "NUMA support"
345 depends on PPC64
346 default y if SMP && PPC_PSERIES
347
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700348config NODES_SHIFT
349 int
350 default "4"
351 depends on NEED_MULTIPLE_NODES
352
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000353config ARCH_SELECT_MEMORY_MODEL
354 def_bool y
355 depends on PPC64
356
357config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000358 def_bool y
359 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000360
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000361config ARCH_SPARSEMEM_ENABLE
362 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000363 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700364 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100365
366config ARCH_SPARSEMEM_DEFAULT
367 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100368 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000369
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700370config ARCH_POPULATES_NODE_MAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000371 def_bool y
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700372
373source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000374
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800375config ARCH_MEMORY_PROBE
376 def_bool y
377 depends on MEMORY_HOTPLUG
378
Andy Whitcroft75167952006-10-21 10:24:14 -0700379# Some NUMA nodes have memory ranges that span
380# other nodes. Even though a pfn is valid and
381# between a node's start and end pfns, it may not
382# reside on that node. See memmap_init_zone()
383# for details.
384config NODES_SPAN_OTHER_NODES
385 def_bool y
386 depends on NEED_MULTIPLE_NODES
387
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000388config PPC_HAS_HASH_64K
389 bool
390 depends on PPC64
391 default n
392
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100393config PPC_64K_PAGES
394 bool "64k page size"
Benjamin Herrenschmidt863c84b2005-11-07 00:57:58 -0800395 depends on PPC64
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000396 select PPC_HAS_HASH_64K
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100397 help
398 This option changes the kernel logical page size to 64k. On machines
Kumar Gala98750262007-04-12 18:01:34 -0500399 without processor support for 64k pages, the kernel will simulate
400 them by loading each individual 4k page on demand transparently,
401 while on hardware with such support, it will be used to map
402 normal application pages.
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100403
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000404config FORCE_MAX_ZONEORDER
405 int "Maximum zone order"
406 default "9" if PPC_64K_PAGES
407 default "13" if PPC64 && !PPC_64K_PAGES
408 default "11"
409 help
410 The kernel memory allocator divides physically contiguous memory
411 blocks into "zones", where each zone is a power of two number of
412 pages. This option selects the largest power of two that the kernel
413 keeps in the memory allocator. If you need to allocate very large
414 blocks of physically contiguous memory, then you may need to
415 increase this value.
416
417 This config option is actually maximum order plus one. For example,
418 a value of 11 means that the largest free memory block is 2^10 pages.
419
420 The page size is not necessarily 4KB. For example, on 64-bit
421 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
422 this in mind when choosing a value for this option.
423
Paul Mackerrasfa282372008-01-24 08:35:13 +1100424config PPC_SUBPAGE_PROT
425 bool "Support setting protections for 4k subpages"
426 depends on PPC_64K_PAGES
427 help
428 This option adds support for a system call to allow user programs
429 to set access permissions (read/write, readonly, or no access)
430 on the 4k subpages of each 64k page.
431
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000432config SCHED_SMT
433 bool "SMT (Hyperthreading) scheduler support"
434 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000435 help
436 SMT scheduler support improves the CPU scheduler's decision making
437 when dealing with POWER5 cpus at a cost of slightly increased
438 overhead in some places. If unsure say N here.
439
440config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000441 bool "Support for device tree in /proc"
442 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000443 help
444 This option adds a device-tree directory under /proc which contains
445 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000446 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000447
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000448config CMDLINE_BOOL
449 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000450
451config CMDLINE
452 string "Initial kernel command string"
453 depends on CMDLINE_BOOL
454 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
455 help
456 On some platforms, there is currently no way for the boot loader to
457 pass arguments to the kernel. For these platforms, you can supply
458 some command-line options at build time by entering them here. In
459 most cases you will need to specify the root device here.
460
461if !44x || BROKEN
Johannes Bergb28f5082008-01-15 23:17:00 -0500462config ARCH_WANTS_FREEZER_CONTROL
463 def_bool y
464 depends on ADB_PMU
465
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000466source kernel/power/Kconfig
467endif
468
469config SECCOMP
470 bool "Enable seccomp to safely compute untrusted bytecode"
471 depends on PROC_FS
472 default y
473 help
474 This kernel feature is useful for number crunching applications
475 that may need to compute untrusted bytecode during their
476 execution. By using pipes or other transports made available to
477 the process as file descriptors supporting the read/write
478 syscalls, it's possible to isolate those applications in
479 their own address space using seccomp. Once seccomp is
480 enabled via /proc/<pid>/seccomp, it cannot be disabled
481 and the task is only allowed to execute a few safe syscalls
482 defined by each seccomp mode.
483
484 If unsure, say Y. Only embedded should say N here.
485
486endmenu
487
488config ISA_DMA_API
489 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100490 default !PPC_ISERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000491
492menu "Bus options"
493
494config ISA
495 bool "Support for ISA-bus hardware"
496 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000497 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000498 help
499 Find out whether you have ISA slots on your motherboard. ISA is the
500 name of a bus system, i.e. the way the CPU talks to the other stuff
501 inside your box. If you have an Apple machine, say N here; if you
502 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
503 you have an embedded board, consult your board documentation.
504
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800505config ZONE_DMA
506 bool
507 default y
508
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000509config GENERIC_ISA_DMA
510 bool
511 depends on PPC64 || POWER4 || 6xx && !CPM2
512 default y
513
Paul Mackerras25635c72005-10-26 16:36:55 +1000514config PPC_INDIRECT_PCI
515 bool
516 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600517 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000518 default n
519
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000520config EISA
521 bool
522
523config SBUS
524 bool
525
Kumar Gala08264cb2006-01-10 21:43:56 -0600526config FSL_SOC
527 bool
528
Roy Zang55c44992007-07-10 18:44:34 +0800529config FSL_PCI
530 bool
531 select PPC_INDIRECT_PCI
532
Stefan Roese2a706912008-03-26 22:39:50 +1100533config 4xx_SOC
534 bool
535
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400536config FSL_LBC
537 bool
538 help
539 Freescale Localbus support
540
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000541# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
542config MCA
543 bool
544
545config PCI
Jon Loeliger53158622006-08-09 10:37:28 -0500546 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
Stephen Rothwellbed59272007-03-04 17:04:44 +1100547 || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
Sean MacLennanf9bdedb2008-01-22 04:55:29 +1100548 || PPC_PS3 || 44x
John Rigbye177edc2008-01-29 04:28:53 +1100549 default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
Jon Loeliger53158622006-08-09 10:37:28 -0500550 && !PPC_85xx && !PPC_86xx
David Gibsonf21f49e2007-06-13 14:52:54 +1000551 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000552 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000553 select ARCH_SUPPORTS_MSI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000554 help
555 Find out whether your system includes a PCI bus. PCI is the name of
556 a bus system, i.e. the way the CPU talks to the other stuff inside
557 your box. If you say Y here, the kernel will include drivers and
558 infrastructure code to support PCI bus devices.
559
560config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600561 def_bool PCI
562
563config PCI_SYSCALL
564 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000565
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000566config PCI_QSPAN
567 bool "QSpan PCI"
568 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000569 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000570 help
571 Say Y here if you have a system based on a Motorola 8xx-series
572 embedded processor with a QSPAN PCI interface, otherwise say N.
573
574config PCI_8260
575 bool
576 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000577 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000578 default y
579
580config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700581 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500582 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000583 default y
584
585choice
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700586 prompt "IDMA channel for PCI 9 workaround"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000587 depends on 8260_PCI9
588
589config 8260_PCI9_IDMA1
590 bool "IDMA1"
591
592config 8260_PCI9_IDMA2
593 bool "IDMA2"
594
595config 8260_PCI9_IDMA3
596 bool "IDMA3"
597
598config 8260_PCI9_IDMA4
599 bool "IDMA4"
600
601endchoice
602
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500603source "drivers/pci/pcie/Kconfig"
604
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000605source "drivers/pci/Kconfig"
606
607source "drivers/pcmcia/Kconfig"
608
609source "drivers/pci/hotplug/Kconfig"
610
611endmenu
612
613menu "Advanced setup"
614 depends on PPC32
615
616config ADVANCED_OPTIONS
617 bool "Prompt for advanced kernel configuration options"
618 help
619 This option will enable prompting for a variety of advanced kernel
620 configuration options. These options can cause the kernel to not
621 work if they are set incorrectly, but can be used to optimize certain
622 aspects of kernel memory management.
623
624 Unless you know what you are doing, say N here.
625
626comment "Default settings for advanced configuration options are used"
627 depends on !ADVANCED_OPTIONS
628
629config HIGHMEM_START_BOOL
630 bool "Set high memory pool address"
631 depends on ADVANCED_OPTIONS && HIGHMEM
632 help
633 This option allows you to set the base address of the kernel virtual
634 area used to map high memory pages. This can be useful in
635 optimizing the layout of kernel virtual memory.
636
637 Say N here unless you know what you are doing.
638
639config HIGHMEM_START
640 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
641 default "0xfe000000"
642
643config LOWMEM_SIZE_BOOL
644 bool "Set maximum low memory"
645 depends on ADVANCED_OPTIONS
646 help
647 This option allows you to set the maximum amount of memory which
648 will be used as "low memory", that is, memory which the kernel can
649 access directly, without having to set up a kernel virtual mapping.
650 This can be useful in optimizing the layout of kernel virtual
651 memory.
652
653 Say N here unless you know what you are doing.
654
655config LOWMEM_SIZE
656 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
657 default "0x30000000"
658
659config KERNEL_START_BOOL
660 bool "Set custom kernel base address"
661 depends on ADVANCED_OPTIONS
662 help
663 This option allows you to set the kernel virtual address at which
664 the kernel will map low memory (the kernel image will be linked at
665 this address). This can be useful in optimizing the virtual memory
666 layout of the system.
667
668 Say N here unless you know what you are doing.
669
670config KERNEL_START
671 hex "Virtual address of kernel base" if KERNEL_START_BOOL
672 default "0xc0000000"
673
674config TASK_SIZE_BOOL
675 bool "Set custom user task size"
676 depends on ADVANCED_OPTIONS
677 help
678 This option allows you to set the amount of virtual address space
679 allocated to user tasks. This can be useful in optimizing the
680 virtual memory layout of the system.
681
682 Say N here unless you know what you are doing.
683
684config TASK_SIZE
685 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500686 default "0x80000000" if PPC_PREP || PPC_8xx
687 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000688
689config CONSISTENT_START_BOOL
690 bool "Set custom consistent memory pool address"
691 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
692 help
693 This option allows you to set the base virtual address
Matt LaPlante4b3f6862006-10-03 22:21:02 +0200694 of the consistent memory pool. This pool of virtual
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000695 memory is used to make consistent memory allocations.
696
697config CONSISTENT_START
698 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
Scott Woodccf0d682007-07-16 11:28:18 -0500699 default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000700 default "0xff100000" if NOT_COHERENT_CACHE
701
702config CONSISTENT_SIZE_BOOL
703 bool "Set custom consistent memory pool size"
704 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
705 help
Matt LaPlante4b3f6862006-10-03 22:21:02 +0200706 This option allows you to set the size of the
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000707 consistent memory pool. This pool of virtual memory
708 is used to make consistent memory allocations.
709
710config CONSISTENT_SIZE
711 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
712 default "0x00200000" if NOT_COHERENT_CACHE
713
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000714config PIN_TLB
715 bool "Pinned Kernel TLBs (860 ONLY)"
716 depends on ADVANCED_OPTIONS && 8xx
717endmenu
718
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000719if PPC64
720config KERNEL_START
721 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000722 default "0xc000000000000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000723endif
724
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000725source "net/Kconfig"
726
727source "drivers/Kconfig"
728
729source "fs/Kconfig"
730
731# XXX source "arch/ppc/8xx_io/Kconfig"
732
733# XXX source "arch/ppc/8260_io/Kconfig"
734
Li Yang98658532006-10-03 23:10:46 -0500735source "arch/powerpc/sysdev/qe_lib/Kconfig"
736
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000737source "lib/Kconfig"
738
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000739source "arch/powerpc/Kconfig.debug"
740
741source "security/Kconfig"
742
743config KEYS_COMPAT
744 bool
745 depends on COMPAT && KEYS
746 default y
747
748source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +1000749
750config PPC_CLOCK
751 bool
752 default n
Sylvain Munaut1088a202007-09-16 20:53:25 +1000753
754config PPC_LIB_RHEAP
755 bool
756