blob: 0ac48a81632dbcadf8c75e3d71cfd335a770a90d [file] [log] [blame]
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10001source "arch/powerpc/platforms/Kconfig.cputype"
Johannes Berg17e638b2007-03-19 11:53:53 +01002
Paul Mackerras14cf11a2005-09-26 16:04:21 +10003config PPC32
4 bool
5 default y if !PPC64
6
kerstin jonsson234a71a2010-10-22 00:17:55 +00007config 32BIT
8 bool
9 default y if PPC32
10
Paul Mackerras14cf11a2005-09-26 16:04:21 +100011config 64BIT
12 bool
13 default y if PPC64
14
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100015config WORD_SIZE
16 int
17 default 64 if PPC64
18 default 32 if !PPC64
19
Jeremy Fitzhardinge600715d2008-09-11 01:31:45 -070020config ARCH_PHYS_ADDR_T_64BIT
21 def_bool PPC64 || PHYS_64BIT
22
FUJITA Tomonori787d44c2010-10-01 11:12:54 +000023config ARCH_DMA_ADDR_T_64BIT
24 def_bool ARCH_PHYS_ADDR_T_64BIT
25
Paul Mackerras14cf11a2005-09-26 16:04:21 +100026config MMU
27 bool
28 default y
29
Tejun Heoc2a7e812009-08-14 15:00:53 +090030config HAVE_SETUP_PER_CPU_AREA
Tejun Heoe74e3962009-03-30 19:07:44 +090031 def_bool PPC64
32
Tejun Heoc2a7e812009-08-14 15:00:53 +090033config NEED_PER_CPU_EMBED_FIRST_CHUNK
travis@sgi.comb32ef632008-01-30 13:32:51 +010034 def_bool PPC64
35
Michael Ellerman551b81f2009-10-13 19:44:44 +000036config NR_IRQS
37 int "Number of virtual interrupt numbers"
Anton Blanchard859aefc2010-01-31 01:14:03 +000038 range 32 32768
Michael Ellerman551b81f2009-10-13 19:44:44 +000039 default "512"
40 help
41 This defines the number of virtual interrupt numbers the kernel
42 can manage. Virtual interrupt numbers are what you see in
43 /proc/interrupts. If you configure your system to have too few,
44 drivers will fail to load or worse - handle with care.
45
Christoph Hellwigfd3e0bb2008-04-17 14:35:00 +100046config STACKTRACE_SUPPORT
47 bool
48 default y
49
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100050config TRACE_IRQFLAGS_SUPPORT
51 bool
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100052 default y
53
54config LOCKDEP_SUPPORT
55 bool
56 default y
57
Paul Mackerras14cf11a2005-09-26 16:04:21 +100058config RWSEM_GENERIC_SPINLOCK
59 bool
60
61config RWSEM_XCHGADD_ALGORITHM
62 bool
63 default y
64
Nick Piggin95c354f2008-01-30 13:31:20 +010065config GENERIC_LOCKBREAK
66 bool
67 default y
68 depends on SMP && PREEMPT
69
David Howellsf0d1b0b2006-12-08 02:37:49 -080070config ARCH_HAS_ILOG2_U32
71 bool
David Howellsef55d532006-12-08 02:37:53 -080072 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080073
74config ARCH_HAS_ILOG2_U64
75 bool
David Howellsef55d532006-12-08 02:37:53 -080076 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080077
Akinobu Mitae779b2f2006-03-26 01:39:33 -080078config GENERIC_HWEIGHT
79 bool
80 default y
81
Benjamin Herrenschmidt817820b2015-06-24 15:25:31 +100082config ARCH_HAS_DMA_SET_COHERENT_MASK
83 bool
84
Paul Mackerras14cf11a2005-09-26 16:04:21 +100085config PPC
86 bool
87 default y
Mark Salterb7e7c372013-10-07 22:15:32 -040088 select ARCH_MIGHT_HAVE_PC_PARPORT
Mark Salterc74e6d32014-01-01 11:32:26 -080089 select ARCH_MIGHT_HAVE_PC_SERIO
Stephen Rothwelld812c0e12013-03-06 18:11:51 +000090 select BINFMT_ELF
Kees Cook2b68f6c2015-04-14 15:48:00 -070091 select ARCH_HAS_ELF_RANDOMIZE
Stephen Rothwell10f85f42010-06-29 12:43:34 +100092 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -080093 select OF_EARLY_FLATTREE
Marek Szyprowski708b7ee2014-02-28 14:42:56 +010094 select OF_RESERVED_MEM
Steven Rostedt2b79d692009-01-06 18:49:17 +000095 select HAVE_FTRACE_MCOUNT_RECORD
96 select HAVE_DYNAMIC_FTRACE
Torsten Duwe8c50b722016-03-03 15:27:00 +110097 select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL
Steven Rostedt606576c2008-10-06 19:06:12 -040098 select HAVE_FUNCTION_TRACER
Steven Rostedt60ce8f72009-02-11 20:06:43 -050099 select HAVE_FUNCTION_GRAPH_TRACER
Catalin Marinas7ac57a82012-10-08 16:28:16 -0700100 select SYSCTL_EXCEPTION_TRACE
Michael Buesch7444a722008-07-25 01:46:11 -0700101 select ARCH_WANT_OPTIONAL_GPIOLIB
Stephen Rothwell4febd952013-03-07 15:48:16 +1100102 select VIRT_TO_BUS if !PPC64
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100103 select HAVE_IDE
Benjamin Herrenschmidta1f242f2008-07-23 21:27:08 -0700104 select HAVE_IOREMAP_PROT
Anton Blanchard0b5e6662013-09-23 12:05:12 +1000105 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
Mathieu Desnoyers3f550092008-02-02 15:10:35 -0500106 select HAVE_KPROBES
Jason Wessel17ce4522008-07-23 11:30:15 -0500107 select HAVE_ARCH_KGDB
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -0800108 select HAVE_KRETPROBES
Roland McGrathdec2b0d2008-07-27 16:53:20 +1000109 select HAVE_ARCH_TRACEHOOK
Yinghai Lu95f72d12010-07-12 14:36:09 +1000110 select HAVE_MEMBLOCK
Tejun Heo1d7cfe12011-12-08 10:22:08 -0800111 select HAVE_MEMBLOCK_NODE_MAP
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000112 select HAVE_DMA_API_DEBUG
Steven Rostedt4e491d12008-05-14 23:49:44 -0400113 select HAVE_OPROFILE
Catalin Marinasb69ec422012-10-08 16:28:11 -0700114 select HAVE_DEBUG_KMEMLEAK
Laura Abbott308c09f2014-08-08 14:23:25 -0700115 select ARCH_HAS_SG_CHAIN
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000116 select GENERIC_ATOMIC64 if PPC32
Catalin Marinas74634492012-07-30 14:41:09 -0700117 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200118 select HAVE_PERF_EVENTS
Anju Ted4a4ef2016-02-20 10:32:46 +0530119 select HAVE_PERF_REGS
Chandan Kumar17ed7c32016-04-28 15:01:08 +0530120 select HAVE_PERF_USER_STACK_DUMP
Mahesh Salgaonkar359e4282010-04-07 18:10:20 +1000121 select HAVE_REGS_AND_STACK_ACCESS_API
K.Prasad5aae8a52010-06-15 11:35:19 +0530122 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
Will Deaconc1d7e012012-07-30 14:42:46 -0700123 select ARCH_WANT_IPC_PARSE_VERSION
Grant Likelyad5b7f132012-01-30 08:02:19 +0000124 select SPARSE_IRQ
Grant Likelycc79ca62012-02-16 01:37:49 -0700125 select IRQ_DOMAIN
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100126 select GENERIC_IRQ_SHOW
127 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000128 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700129 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000130 select HAVE_SYSCALL_TRACEPOINTS
Naveen N. Rao844e3be2016-06-22 21:55:01 +0530131 select HAVE_CBPF_JIT if CPU_BIG_ENDIAN
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000132 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800133 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Riku Voipio957e3fa2014-12-12 16:57:44 -0800134 select ARCH_HAS_GCOV_PROFILE_ALL
Thomas Gleixner17e32ea2012-04-20 13:05:48 +0000135 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000136 select GENERIC_CMOS_UPDATE
John Stultz70639422012-09-04 15:34:21 -0400137 select GENERIC_TIME_VSYSCALL_OLD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000138 select GENERIC_CLOCKEVENTS
Preeti U Murthy0d948732014-02-26 05:39:06 +0530139 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
140 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Paul Mackerras16293722012-05-28 13:03:47 +1000141 select GENERIC_STRNCPY_FROM_USER
142 select GENERIC_STRNLEN_USER
David Howells786d35d2012-09-28 14:31:03 +0930143 select HAVE_MOD_ARCH_SPECIFIC
144 select MODULES_USE_ELF_RELA
Al Viro0bcfe542012-10-26 23:08:25 -0400145 select CLONE_BACKWARDS
David Woodhousefe3955c2012-12-19 15:14:17 +0000146 select ARCH_USE_BUILTIN_BSWAP
Al Viro0980cae2012-12-25 16:23:09 -0500147 select OLD_SIGSUSPEND
Al Viro09a4d5d2012-12-25 19:27:42 -0500148 select OLD_SIGACTION if PPC32
Dave Hansend1a1dc02013-07-01 13:04:42 -0700149 select HAVE_DEBUG_STACKOVERFLOW
Frederic Weisbecker62d26c82013-09-24 17:18:36 +0200150 select HAVE_IRQ_EXIT_ON_IRQ_STACK
Michael Ellerman3405d232014-01-15 18:14:28 +1100151 select ARCH_USE_CMPXCHG_LOCKREF if PPC64
AKASHI Takahiro7a017722014-02-25 18:16:24 +0900152 select HAVE_ARCH_AUDITSYSCALL
Peter Zijlstra4badad32014-06-06 19:53:16 +0200153 select ARCH_SUPPORTS_ATOMIC_RMW
Anton Blancharda75c3802014-09-19 09:40:21 +1000154 select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
Anton Blanchard10239732014-09-17 22:15:33 +1000155 select NO_BOOTMEM
Aneesh Kumar K.Vb30e7592014-11-05 21:57:41 +0530156 select HAVE_GENERIC_RCU_GUP
Anton Blanchardc54b2bf2015-04-09 12:52:56 +1000157 select HAVE_PERF_EVENTS_NMI if PPC64
Petr Mladek42a0bb32016-05-20 17:00:33 -0700158 select HAVE_NMI if PERF_EVENTS
Borislav Petkovb01aec92015-05-21 19:59:31 +0200159 select EDAC_SUPPORT
160 select EDAC_ATOMIC_SCRUB
Benjamin Herrenschmidt817820b2015-06-24 15:25:31 +1000161 select ARCH_HAS_DMA_SET_COHERENT_MASK
Dan Williams21266be2015-11-19 18:19:29 -0800162 select ARCH_HAS_DEVMEM_IS_ALLOWED
Michael Ellerman2449acc2015-07-23 20:21:09 +1000163 select HAVE_ARCH_SECCOMP_FILTER
Daniel Axtensbf76f732016-01-20 15:00:58 -0800164 select ARCH_HAS_UBSAN_SANITIZE_ALL
Li Zhang7f2bd002016-03-17 14:20:19 -0700165 select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
Michael Ellerman85baa092016-03-24 22:04:05 +1100166 select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
Kees Cook1d3c1322016-06-23 15:10:01 -0700167 select HAVE_ARCH_HARDENED_USERCOPY
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000168
Anton Blanchard7a332b02013-09-23 12:04:51 +1000169config GENERIC_CSUM
170 def_bool CPU_LITTLE_ENDIAN
171
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000172config EARLY_PRINTK
173 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100174 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000175
Jason Baronb71d47c2013-11-25 23:23:11 +0000176config PANIC_TIMEOUT
177 int
178 default 180
179
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000180config COMPAT
181 bool
182 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800183 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400184 select ARCH_WANT_OLD_COMPAT_IPC
Al Viro09a4d5d2012-12-25 19:27:42 -0500185 select COMPAT_OLD_SIGACTION
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000186
187config SYSVIPC_COMPAT
188 bool
189 depends on COMPAT && SYSVIPC
190 default y
191
192# All PPC32s use generic nvram driver through ppc_md
193config GENERIC_NVRAM
194 bool
195 default y if PPC32
196
Ingo Molnarae1e9132008-11-11 09:05:16 +0100197config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000198 bool
199 default y
200
201config ARCH_MAY_HAVE_PC_FDC
202 bool
Pranith Kumar3484a312014-08-18 17:13:41 -0400203 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000204
Kumar Gala08264cb2006-01-10 21:43:56 -0600205config PPC_UDBG_16550
206 bool
207 default n
208
Kumar Gala08264cb2006-01-10 21:43:56 -0600209config GENERIC_TBSYNC
210 bool
211 default y if PPC32 && SMP
212 default n
213
Al Viroe65e1fc2006-09-12 03:04:40 -0400214config AUDIT_ARCH
215 bool
216 default y
217
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800218config GENERIC_BUG
219 bool
220 default y
221 depends on BUG
222
Johannes Bergb3028872007-03-20 05:18:02 +1100223config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500224 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100225 bool
226
David Gibson6c5b59b2011-04-14 18:29:16 +0000227config EPAPR_BOOT
228 bool
229 help
230 Used to allow a board to specify it wants an ePAPR compliant wrapper.
231 default n
232
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600233config DEFAULT_UIMAGE
234 bool
235 help
236 Used to allow a board to specify it wants a uImage built by default
237 default n
238
Johannes Berg801e4062007-12-08 02:12:39 +0100239config ARCH_HIBERNATION_POSSIBLE
240 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000241 default y
242
Johannes Bergf4cb5702007-12-08 02:14:00 +0100243config ARCH_SUSPEND_POSSIBLE
244 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400245 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Zhao Chenhuid0832a72012-07-20 20:42:36 +0800246 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
247 || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100248
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100249config PPC_DCR_NATIVE
250 bool
251 default n
252
253config PPC_DCR_MMIO
254 bool
255 default n
256
257config PPC_DCR
258 bool
259 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
260 default y
261
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100262config PPC_OF_PLATFORM_PCI
263 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100264 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100265 depends on PPC64 # not supported on 32 bits yet
266 default n
267
Akinobu Mita6a11f752009-03-31 15:23:17 -0700268config ARCH_SUPPORTS_DEBUG_PAGEALLOC
Kim Phillipsce614c32015-01-26 13:22:22 -0600269 depends on PPC32 || PPC_STD_MMU_64
Akinobu Mita6a11f752009-03-31 15:23:17 -0700270 def_bool y
271
Ananth N Mavinakayanahalli8b7b80b2012-08-23 21:31:32 +0000272config ARCH_SUPPORTS_UPROBES
273 def_bool y
274
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000275config PPC_ADV_DEBUG_REGS
276 bool
277 depends on 40x || BOOKE
278 default y
279
280config PPC_ADV_DEBUG_IACS
281 int
282 depends on PPC_ADV_DEBUG_REGS
283 default 4 if 44x
284 default 2
285
286config PPC_ADV_DEBUG_DACS
287 int
288 depends on PPC_ADV_DEBUG_REGS
289 default 2
290
291config PPC_ADV_DEBUG_DVCS
292 int
293 depends on PPC_ADV_DEBUG_REGS
294 default 2 if 44x
295 default 0
296
297config PPC_ADV_DEBUG_DAC_RANGE
298 bool
299 depends on PPC_ADV_DEBUG_REGS && 44x
300 default y
301
Suzuki K. Poulose5e249d42013-01-07 00:26:57 +0000302config PPC_EMULATE_SSTEP
303 bool
304 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
305
Scott Wood1c980252014-08-08 18:40:42 -0500306config ZONE_DMA32
307 bool
308 default y if PPC64
309
Kirill A. Shutemov06ef42a2015-04-14 15:45:57 -0700310config PGTABLE_LEVELS
311 int
312 default 2 if !PPC64
Aneesh Kumar K.V368ced72016-03-01 09:45:13 +0530313 default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64
Kirill A. Shutemov06ef42a2015-04-14 15:45:57 -0700314 default 4
315
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000316source "init/Kconfig"
317
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700318source "kernel/Kconfig.freezer"
319
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100320source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500321source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000322
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000323menu "Kernel options"
324
325config HIGHMEM
326 bool "High memory support"
327 depends on PPC32
328
329source kernel/Kconfig.hz
330source kernel/Kconfig.preempt
331source "fs/Kconfig.binfmt"
332
Mel Gormanba72cb82007-11-28 16:21:13 -0800333config HUGETLB_PAGE_SIZE_VARIABLE
334 bool
335 depends on HUGETLB_PAGE
336 default y
337
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000338config MATH_EMULATION
339 bool "Math emulation"
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000340 depends on 4xx || 8xx || PPC_MPC832x || BOOKE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000341 ---help---
342 Some PowerPC chips designed for embedded applications do not have
343 a floating-point unit and therefore do not implement the
344 floating-point instructions in the PowerPC instruction set. If you
345 say Y here, the kernel will include code to emulate a floating-point
346 unit, which will allow programs that use floating-point
347 instructions to run.
348
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000349 This is also useful to emulate missing (optional) instructions
350 such as fsqrt on cores that do have an FPU but do not implement
351 them (such as Freescale BookE).
352
Kevin Haoe05c0e82013-07-16 19:57:15 +0800353choice
354 prompt "Math emulation options"
355 default MATH_EMULATION_FULL
356 depends on MATH_EMULATION
357
358config MATH_EMULATION_FULL
359 bool "Emulate all the floating point instructions"
360 ---help---
361 Select this option will enable the kernel to support to emulate
362 all the floating point instructions. If your SoC doesn't have
363 a FPU, you should select this.
364
365config MATH_EMULATION_HW_UNIMPLEMENTED
366 bool "Just emulate the FPU unimplemented instructions"
367 ---help---
368 Select this if you know there does have a hardware FPU on your
369 SoC, but some floating point instructions are not implemented by that.
370
371endchoice
372
Michael Neuling3d72bbc2013-02-13 16:21:43 +0000373config PPC_TRANSACTIONAL_MEM
374 bool "Transactional Memory support for POWERPC"
375 depends on PPC_BOOK3S_64
376 depends on SMP
Michael Neuling7b37a122014-01-08 21:25:31 +1100377 select ALTIVEC
378 select VSX
Michael Neuling3d72bbc2013-02-13 16:21:43 +0000379 default n
380 ---help---
381 Support user-mode Transactional Memory on POWERPC.
382
Torsten Duwe8c50b722016-03-03 15:27:00 +1100383config DISABLE_MPROFILE_KERNEL
384 bool "Disable use of mprofile-kernel for kernel tracing"
385 depends on PPC64 && CPU_LITTLE_ENDIAN
386 default y
387 help
388 Selecting this options disables use of the mprofile-kernel ABI for
389 kernel tracing. That will cause options such as live patching
390 (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to
391 be disabled also.
392
393 If you have a toolchain which supports mprofile-kernel, then you can
394 enable this. Otherwise leave it disabled. If you're not sure, say
395 "N".
396
397config MPROFILE_KERNEL
398 depends on PPC64 && CPU_LITTLE_ENDIAN
399 def_bool !DISABLE_MPROFILE_KERNEL
400
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800401config IOMMU_HELPER
402 def_bool PPC64
403
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000404config SWIOTLB
405 bool "SWIOTLB support"
406 default n
407 select IOMMU_HELPER
408 ---help---
409 Support for IO bounce buffering for systems without an IOMMU.
410 This allows us to DMA to the full physical address space on
411 platforms where the size of a physical address is larger
412 than the bus address. Not all platforms support this.
413
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000414config HOTPLUG_CPU
415 bool "Support for enabling/disabling CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +1000416 depends on SMP && (PPC_PSERIES || \
chenhui zhao2f4f1f82015-11-20 17:14:01 +0800417 PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000418 ---help---
419 Say Y here to be able to disable and re-enable individual
420 CPUs at runtime on SMP machines.
421
422 Say N if you are unsure.
423
Nathan Fontenot12633e82009-11-25 17:23:25 +0000424config ARCH_CPU_PROBE_RELEASE
425 def_bool y
426 depends on HOTPLUG_CPU
427
Yasunori Gotocc576372006-06-29 02:24:27 -0700428config ARCH_ENABLE_MEMORY_HOTPLUG
429 def_bool y
430
Badari Pulavartya99824f2008-02-05 00:10:18 -0800431config ARCH_HAS_WALK_MEMORY
432 def_bool y
433
Badari Pulavarty14824712008-02-05 00:10:17 -0800434config ARCH_ENABLE_MEMORY_HOTREMOVE
435 def_bool y
436
Mahesh Salgaonkarf2296a32013-11-15 09:50:50 +0530437config PPC64_SUPPORTS_MEMORY_FAILURE
438 bool "Add support for memory hwpoison"
439 depends on PPC_BOOK3S_64
440 default "y" if PPC_POWERNV
441 select ARCH_SUPPORTS_MEMORY_FAILURE
442
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000443config KEXEC
Kees Cook642e56f2013-01-16 18:53:25 -0800444 bool "kexec system call"
Tiejun Chen96eea642015-10-06 22:48:22 -0500445 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E
Dave Young2965faa2015-09-09 15:38:55 -0700446 select KEXEC_CORE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000447 help
448 kexec is a system call that implements the ability to shutdown your
449 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400450 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000451 you can start any kernel with it, not just Linux.
452
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400453 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000454
455 It is an ongoing process to be certain the hardware in a machine
456 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +0200457 initially work for you. As of this writing the exact hardware
458 interface is strongly in flux, so no good recommendation can be
459 made.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000460
Haren Mynenie8625d462006-01-14 13:48:25 -0800461config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000462 bool "Build a kdump crash kernel"
Suzuki Poulose47da4212012-04-15 22:27:35 +0000463 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
Guenter Roeckfb43e842014-06-30 11:45:30 -0700464 select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800465 help
466 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000467 The same kernel binary can be used as production kernel and dump
468 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800469
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000470config FA_DUMP
471 bool "Firmware-assisted dump"
Michael Ellerman90890b12013-10-28 15:00:35 +1100472 depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
Manish Ahuja242f2712008-03-22 10:50:50 +1100473 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000474 A robust mechanism to get reliable kernel crash dump with
475 assistance from firmware. This approach does not use kexec,
476 instead firmware assists in booting the kdump kernel
477 while preserving memory contents. Firmware-assisted dump
478 is meant to be a kdump replacement offering robustness and
479 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100480
481 If unsure, say "N"
482
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000483config IRQ_ALL_CPUS
484 bool "Distribute interrupts on all CPUs by default"
Paul Bolle6cf09b92013-05-15 11:21:01 +0200485 depends on SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000486 help
487 This option gives the kernel permission to distribute IRQs across
488 multiple CPUs. Saying N here will route all IRQs to the first
489 CPU. Generally saying Y is safe, although some problems have been
490 reported with SMP Power Macintoshes with this option enabled.
491
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700492config NUMA
493 bool "NUMA support"
494 depends on PPC64
495 default y if SMP && PPC_PSERIES
496
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700497config NODES_SHIFT
498 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000499 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700500 default "4"
501 depends on NEED_MULTIPLE_NODES
502
Nishanth Aravamudan8c272262014-05-19 11:14:23 -0700503config USE_PERCPU_NUMA_NODE_ID
504 def_bool y
505 depends on NUMA
506
Nishanth Aravamudan64bb80d2014-05-16 16:41:20 -0700507config HAVE_MEMORYLESS_NODES
508 def_bool y
509 depends on NUMA
510
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000511config ARCH_SELECT_MEMORY_MODEL
512 def_bool y
513 depends on PPC64
514
515config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000516 def_bool y
517 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000518
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000519config ARCH_SPARSEMEM_ENABLE
520 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000521 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700522 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100523
524config ARCH_SPARSEMEM_DEFAULT
525 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100526 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000527
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100528config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000529 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100530
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700531source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000532
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800533config ARCH_MEMORY_PROBE
534 def_bool y
535 depends on MEMORY_HOTPLUG
536
Andy Whitcroft75167952006-10-21 10:24:14 -0700537# Some NUMA nodes have memory ranges that span
538# other nodes. Even though a pfn is valid and
539# between a node's start and end pfns, it may not
540# reside on that node. See memmap_init_zone()
541# for details.
542config NODES_SPAN_OTHER_NODES
543 def_bool y
544 depends on NEED_MULTIPLE_NODES
545
Yuri Tikhonove1240122009-01-29 01:40:44 +0000546config STDBINUTILS
547 bool "Using standard binutils settings"
548 depends on 44x
549 default y
550 help
551 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
552 Note, that kernel will be able to run only those applications,
553 which had been compiled using binutils later than 2.17.50.0.3 with
554 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
555 the older binutils, you can patch them with a trivial patch, which
556 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
557
Ilya Yanokca9153a2008-12-11 04:55:41 +0300558choice
559 prompt "Page size"
560 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100561 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300562 Select the kernel logical page size. Increasing the page size
563 will reduce software overhead at each page boundary, allow
564 hardware prefetch mechanisms to be more effective, and allow
565 larger dma transfers increasing IO efficiency and reducing
566 overhead. However the utilization of memory will increase.
567 For example, each cached file will using a multiple of the
568 page size to hold its contents and the difference between the
569 end of file and the end of page is wasted.
570
571 Some dedicated systems, such as software raid serving with
572 accelerated calculations, have shown significant increases.
573
574 If you configure a 64 bit kernel for 64k pages but the
575 processor does not support them, then the kernel will simulate
576 them with 4k pages, loading them on demand, but with the
577 reduced software overhead and larger internal fragmentation.
578 For the 32 bit kernel, a large page option will not be offered
579 unless it is supported by the configured processor.
580
581 If unsure, choose 4K_PAGES.
582
583config PPC_4K_PAGES
584 bool "4k page size"
Aneesh Kumar K.V19f97c92016-01-29 22:32:49 +0530585 select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300586
587config PPC_16K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000588 bool "16k page size"
589 depends on 44x || PPC_8xx
Ilya Yanokca9153a2008-12-11 04:55:41 +0300590
591config PPC_64K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000592 bool "64k page size"
593 depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64)
Aneesh Kumar K.V19f97c92016-01-29 22:32:49 +0530594 select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300595
Yuri Tikhonove1240122009-01-29 01:40:44 +0000596config PPC_256K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000597 bool "256k page size"
598 depends on 44x && !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000599 help
600 Make the page size 256k.
601
602 As the ELF standard only requires alignment to support page
603 sizes up to 64k, you will need to compile all of your user
604 space applications with a non-standard binutils settings
605 (see the STDBINUTILS description for details).
606
607 Say N unless you know what you are doing.
608
Ilya Yanokca9153a2008-12-11 04:55:41 +0300609endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100610
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000611config FORCE_MAX_ZONEORDER
612 int "Maximum zone order"
Rashmica Guptaa7ee5392016-02-19 16:38:47 +1100613 range 8 9 if PPC64 && PPC_64K_PAGES
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000614 default "9" if PPC64 && PPC_64K_PAGES
Rashmica Guptaa7ee5392016-02-19 16:38:47 +1100615 range 9 13 if PPC64 && !PPC_64K_PAGES
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000616 default "13" if PPC64 && !PPC_64K_PAGES
617 range 9 64 if PPC32 && PPC_16K_PAGES
618 default "9" if PPC32 && PPC_16K_PAGES
619 range 7 64 if PPC32 && PPC_64K_PAGES
620 default "7" if PPC32 && PPC_64K_PAGES
621 range 5 64 if PPC32 && PPC_256K_PAGES
622 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000623 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000624 default "11"
625 help
626 The kernel memory allocator divides physically contiguous memory
627 blocks into "zones", where each zone is a power of two number of
628 pages. This option selects the largest power of two that the kernel
629 keeps in the memory allocator. If you need to allocate very large
630 blocks of physically contiguous memory, then you may need to
631 increase this value.
632
633 This config option is actually maximum order plus one. For example,
634 a value of 11 means that the largest free memory block is 2^10 pages.
635
636 The page size is not necessarily 4KB. For example, on 64-bit
637 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
638 this in mind when choosing a value for this option.
639
Paul Mackerrasfa282372008-01-24 08:35:13 +1100640config PPC_SUBPAGE_PROT
641 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300642 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100643 help
644 This option adds support for a system call to allow user programs
645 to set access permissions (read/write, readonly, or no access)
646 on the 4k subpages of each 64k page.
647
Ian Munsiee83d0162014-10-08 19:54:50 +1100648config PPC_COPRO_BASE
649 bool
650 default n
651
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000652config SCHED_SMT
653 bool "SMT (Hyperthreading) scheduler support"
654 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000655 help
656 SMT scheduler support improves the CPU scheduler's decision making
657 when dealing with POWER5 cpus at a cost of slightly increased
658 overhead in some places. If unsure say N here.
659
Michael Neulingb92a66a2012-09-10 00:35:26 +0000660config PPC_DENORMALISATION
661 bool "PowerPC denormalisation exception handling"
662 depends on PPC_BOOK3S_64
Anton Blanchard4e90a2a2013-07-31 16:31:26 +1000663 default "y" if PPC_POWERNV
Michael Neulingb92a66a2012-09-10 00:35:26 +0000664 ---help---
665 Add support for handling denormalisation of single precision
666 values. Useful for bare metal only. If unsure say Y here.
667
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000668config CMDLINE_BOOL
669 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000670
671config CMDLINE
672 string "Initial kernel command string"
673 depends on CMDLINE_BOOL
674 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
675 help
676 On some platforms, there is currently no way for the boot loader to
677 pass arguments to the kernel. For these platforms, you can supply
678 some command-line options at build time by entering them here. In
679 most cases you will need to specify the root device here.
680
Sebastian Siewioreb3b80f2014-02-20 21:48:17 +0100681config CMDLINE_FORCE
682 bool "Always use the default kernel command string"
683 depends on CMDLINE_BOOL
684 help
685 Always use the default kernel command string, even if the boot
686 loader passes other arguments to the kernel.
687 This is useful if you cannot or don't want to change the
688 command-line options your boot loader passes to the kernel.
689
Grant Likelyc356aa42008-07-09 09:41:52 -0600690config EXTRA_TARGETS
691 string "Additional default image types"
692 help
693 List additional targets to be built by the bootwrapper here (separated
694 by spaces). This is useful for targets that depend of device tree
695 files in the .dts directory.
696
697 Targets in this list will be build as part of the default build
698 target, or when the user does a 'make zImage' or a
699 'make zImage.initrd'.
700
701 If unsure, leave blank
702
Johannes Bergb28f5082008-01-15 23:17:00 -0500703config ARCH_WANTS_FREEZER_CONTROL
704 def_bool y
705 depends on ADB_PMU
706
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000707source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000708
709config SECCOMP
710 bool "Enable seccomp to safely compute untrusted bytecode"
711 depends on PROC_FS
712 default y
713 help
714 This kernel feature is useful for number crunching applications
715 that may need to compute untrusted bytecode during their
716 execution. By using pipes or other transports made available to
717 the process as file descriptors supporting the read/write
718 syscalls, it's possible to isolate those applications in
719 their own address space using seccomp. Once seccomp is
720 enabled via /proc/<pid>/seccomp, it cannot be disabled
721 and the task is only allowed to execute a few safe syscalls
722 defined by each seccomp mode.
723
724 If unsure, say Y. Only embedded should say N here.
725
726endmenu
727
728config ISA_DMA_API
729 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000730 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000731
732menu "Bus options"
733
734config ISA
735 bool "Support for ISA-bus hardware"
Paul Bolle933ee712013-03-27 00:47:03 +0000736 depends on PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000737 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000738 help
739 Find out whether you have ISA slots on your motherboard. ISA is the
740 name of a bus system, i.e. the way the CPU talks to the other stuff
741 inside your box. If you have an Apple machine, say N here; if you
Paul Bolle933ee712013-03-27 00:47:03 +0000742 have an IBM RS/6000 or pSeries machine, say Y. If you have an
743 embedded board, consult your board documentation.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000744
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800745config ZONE_DMA
746 bool
747 default y
748
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800749config NEED_DMA_MAP_STATE
750 def_bool (PPC64 || NOT_COHERENT_CACHE)
751
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700752config NEED_SG_DMA_LENGTH
753 def_bool y
754
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000755config GENERIC_ISA_DMA
756 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000757 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000758 default y
759
Paul Mackerras25635c72005-10-26 16:36:55 +1000760config PPC_INDIRECT_PCI
761 bool
762 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600763 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000764 default n
765
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000766config EISA
767 bool
768
769config SBUS
770 bool
771
Kumar Gala08264cb2006-01-10 21:43:56 -0600772config FSL_SOC
773 bool
774
Roy Zang55c44992007-07-10 18:44:34 +0800775config FSL_PCI
776 bool
777 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600778 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800779
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400780config FSL_PMC
781 bool
782 default y
783 depends on SUSPEND && (PPC_85xx || PPC_86xx)
784 help
785 Freescale MPC85xx/MPC86xx power management controller support
786 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
787
Victor Gallardod164f6d2010-10-08 10:25:27 +0000788config PPC4xx_CPM
789 bool
790 default y
791 depends on SUSPEND && (44x || 40x)
792 help
793 PPC4xx Clock Power Management (CPM) support (suspend/resume).
794 It also enables support for two different idle states (idle-wait
795 and idle-doze).
796
Stefan Roese2a706912008-03-26 22:39:50 +1100797config 4xx_SOC
798 bool
799
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400800config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800801 bool "Freescale Local Bus support"
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400802 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800803 Enables reporting of errors from the Freescale local bus
804 controller. Also contains some common code used by
805 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400806
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400807config FSL_GTM
808 bool
809 depends on PPC_83xx || QUICC_ENGINE || CPM2
810 help
811 Freescale General-purpose Timers support
812
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000813# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
814config MCA
815 bool
816
John Rigbyb5005632008-06-26 11:07:56 -0600817# Platforms that what PCI turned unconditionally just do select PCI
818# in their config node. Platforms that want to choose at config
819# time should select PPC_PCI_CHOICE
820config PPC_PCI_CHOICE
821 bool
822
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000823config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600824 bool "PCI support" if PPC_PCI_CHOICE
825 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000826 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000827 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200828 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000829 help
830 Find out whether your system includes a PCI bus. PCI is the name of
831 a bus system, i.e. the way the CPU talks to the other stuff inside
832 your box. If you say Y here, the kernel will include drivers and
833 infrastructure code to support PCI bus devices.
834
835config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600836 def_bool PCI
837
838config PCI_SYSCALL
839 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000840
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000841config PCI_QSPAN
842 bool "QSpan PCI"
843 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000844 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000845 help
846 Say Y here if you have a system based on a Motorola 8xx-series
847 embedded processor with a QSPAN PCI interface, otherwise say N.
848
849config PCI_8260
850 bool
851 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000852 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000853 default y
854
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000855source "drivers/pci/Kconfig"
856
857source "drivers/pcmcia/Kconfig"
858
Zhang Weif1f389d2008-04-18 13:33:39 -0700859config HAS_RAPIDIO
860 bool
861 default n
862
863config RAPIDIO
Alexandre Bounine56abde72014-01-23 15:56:04 -0800864 tristate "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700865 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700866 help
867 If you say Y here, the kernel will include drivers and
868 infrastructure code to support RapidIO interconnect devices.
869
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700870config FSL_RIO
871 bool "Freescale Embedded SRIO Controller support"
Alexandre Bounine56abde72014-01-23 15:56:04 -0800872 depends on RAPIDIO = y && HAS_RAPIDIO
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700873 default "n"
874 ---help---
875 Include support for RapidIO controller on Freescale embedded
876 processors (MPC8548, MPC8641, etc).
877
Zhang Weif1f389d2008-04-18 13:33:39 -0700878source "drivers/rapidio/Kconfig"
879
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000880endmenu
881
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000882config NONSTATIC_KERNEL
883 bool
884 default n
885
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000886menu "Advanced setup"
887 depends on PPC32
888
889config ADVANCED_OPTIONS
890 bool "Prompt for advanced kernel configuration options"
891 help
892 This option will enable prompting for a variety of advanced kernel
893 configuration options. These options can cause the kernel to not
894 work if they are set incorrectly, but can be used to optimize certain
895 aspects of kernel memory management.
896
897 Unless you know what you are doing, say N here.
898
899comment "Default settings for advanced configuration options are used"
900 depends on !ADVANCED_OPTIONS
901
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000902config LOWMEM_SIZE_BOOL
903 bool "Set maximum low memory"
904 depends on ADVANCED_OPTIONS
905 help
906 This option allows you to set the maximum amount of memory which
907 will be used as "low memory", that is, memory which the kernel can
908 access directly, without having to set up a kernel virtual mapping.
909 This can be useful in optimizing the layout of kernel virtual
910 memory.
911
912 Say N here unless you know what you are doing.
913
914config LOWMEM_SIZE
915 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
916 default "0x30000000"
917
Trent Piepho96051462008-12-08 19:34:58 -0800918config LOWMEM_CAM_NUM_BOOL
919 bool "Set number of CAMs to use to map low memory"
920 depends on ADVANCED_OPTIONS && FSL_BOOKE
921 help
922 This option allows you to set the maximum number of CAM slots that
923 will be used to map low memory. There are a limited number of slots
924 available and even more limited number that will fit in the L1 MMU.
925 However, using more entries will allow mapping more low memory. This
926 can be useful in optimizing the layout of kernel virtual memory.
927
928 Say N here unless you know what you are doing.
929
930config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400931 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800932 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
933 default 3
934
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000935config DYNAMIC_MEMSTART
Kees Cook642e56f2013-01-16 18:53:25 -0800936 bool "Enable page aligned dynamic load address for kernel"
937 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000938 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000939 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000940 This option enables the kernel to be loaded at any page aligned
941 physical address. The kernel creates a mapping from KERNELBASE to
942 the address where the kernel is loaded. The page size here implies
943 the TLB page size of the mapping for kernel on the particular platform.
944 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000945
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000946 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
947 kernel image, where the only restriction is the page aligned kernel
948 load address. When this option is enabled, the compile time physical
949 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000950
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000951 This option is overridden by CONFIG_RELOCATABLE
952
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000953config RELOCATABLE
Kees Cook642e56f2013-01-16 18:53:25 -0800954 bool "Build a relocatable kernel"
Kevin Haodd189692013-12-24 15:12:06 +0800955 depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000956 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000957 help
958 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000959 location the kernel is loaded at, without any alignment restrictions.
960 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000961
962 One use is for the kexec on panic case where the recovery kernel
963 must live at a different physical address than the primary
964 kernel.
965
966 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
967 it has been loaded at and the compile time physical addresses
968 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
969 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000970 load address of the kernel (eg. u-boot/mkimage).
971
972config RELOCATABLE_PPC32
973 def_bool y
974 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000975
976config PAGE_OFFSET_BOOL
977 bool "Set custom page offset address"
978 depends on ADVANCED_OPTIONS
979 help
980 This option allows you to set the kernel virtual address at which
981 the kernel will map low memory. This can be useful in optimizing
982 the virtual memory layout of the system.
983
984 Say N here unless you know what you are doing.
985
986config PAGE_OFFSET
987 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
988 default "0xc0000000"
989
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000990config KERNEL_START_BOOL
991 bool "Set custom kernel base address"
992 depends on ADVANCED_OPTIONS
993 help
994 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000995 the kernel will be loaded. Normally this should match PAGE_OFFSET
996 however there are times (like kdump) that one might not want them
997 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000998
999 Say N here unless you know what you are doing.
1000
1001config KERNEL_START
1002 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001003 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +00001004 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001005 default "0xc0000000"
1006
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001007config PHYSICAL_START_BOOL
1008 bool "Set physical address where the kernel is loaded"
1009 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
1010 help
1011 This gives the physical address where the kernel is loaded.
1012
1013 Say N here unless you know what you are doing.
1014
1015config PHYSICAL_START
1016 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +00001017 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001018 default "0x00000000"
1019
1020config PHYSICAL_ALIGN
1021 hex
Trent Piephoc8f35702008-12-08 19:34:59 -08001022 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001023 help
1024 This value puts the alignment restrictions on physical address
1025 where kernel is loaded and run from. Kernel is compiled for an
1026 address which meets above alignment restriction.
1027
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001028config TASK_SIZE_BOOL
1029 bool "Set custom user task size"
1030 depends on ADVANCED_OPTIONS
1031 help
1032 This option allows you to set the amount of virtual address space
1033 allocated to user tasks. This can be useful in optimizing the
1034 virtual memory layout of the system.
1035
1036 Say N here unless you know what you are doing.
1037
1038config TASK_SIZE
1039 hex "Size of user task space" if TASK_SIZE_BOOL
Paul Bolle933ee712013-03-27 00:47:03 +00001040 default "0x80000000" if PPC_8xx
Kumar Gala4d9e55102007-10-11 13:40:21 -05001041 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001042
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +10001043config CONSISTENT_SIZE_BOOL
1044 bool "Set custom consistent memory pool size"
1045 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1046 help
1047 This option allows you to set the size of the
1048 consistent memory pool. This pool of virtual memory
1049 is used to make consistent memory allocations.
1050
1051config CONSISTENT_SIZE
1052 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1053 default "0x00200000" if NOT_COHERENT_CACHE
1054
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001055config PIN_TLB
1056 bool "Pinned Kernel TLBs (860 ONLY)"
1057 depends on ADVANCED_OPTIONS && 8xx
1058endmenu
1059
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001060if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +10001061config RELOCATABLE
1062 bool "Build a relocatable kernel"
Guenter Roeckfb43e842014-06-30 11:45:30 -07001063 depends on !COMPILE_TEST
Suzuki Poulose0f890c82011-12-14 22:57:15 +00001064 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +10001065 help
1066 This builds a kernel image that is capable of running anywhere
1067 in the RMA (real memory area) at any 16k-aligned base address.
1068 The kernel is linked as a position-independent executable (PIE)
1069 and contains dynamic relocations which are processed early
1070 in the bootup process.
1071
1072 One use is for the kexec on panic case where the recovery kernel
1073 must live at a different physical address than the primary
1074 kernel.
1075
Paul Mackerrasbdbc29c2013-08-27 16:07:49 +10001076# This value must have zeroes in the bottom 60 bits otherwise lots will break
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001077config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001078 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +10001079 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001080config KERNEL_START
1081 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001082 default "0xc000000000000000"
1083config PHYSICAL_START
1084 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001085 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001086endif
1087
Michael Ellermana4da0d52013-10-11 14:07:57 +11001088config ARCH_RANDOM
1089 def_bool n
1090
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001091source "net/Kconfig"
1092
1093source "drivers/Kconfig"
1094
1095source "fs/Kconfig"
1096
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001097source "lib/Kconfig"
1098
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001099source "arch/powerpc/Kconfig.debug"
1100
1101source "security/Kconfig"
1102
1103config KEYS_COMPAT
1104 bool
1105 depends on COMPAT && KEYS
1106 default y
1107
1108source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001109
Sylvain Munaut1088a202007-09-16 20:53:25 +10001110config PPC_LIB_RHEAP
1111 bool
1112
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001113source "arch/powerpc/kvm/Kconfig"
Michael Ellerman85baa092016-03-24 22:04:05 +11001114
1115source "kernel/livepatch/Kconfig"