blob: 8567c68092405c593545b351b9189b4d2bcc6fd8 [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
Jeremy Fitzhardinge600715d2008-09-11 01:31:45 -070015config ARCH_PHYS_ADDR_T_64BIT
16 def_bool PPC64 || PHYS_64BIT
17
FUJITA Tomonori787d44c2010-10-01 11:12:54 +000018config ARCH_DMA_ADDR_T_64BIT
19 def_bool ARCH_PHYS_ADDR_T_64BIT
20
Paul Mackerras14cf11a2005-09-26 16:04:21 +100021config MMU
22 bool
23 default y
24
Tejun Heoc2a7e812009-08-14 15:00:53 +090025config HAVE_SETUP_PER_CPU_AREA
Tejun Heoe74e3962009-03-30 19:07:44 +090026 def_bool PPC64
27
Tejun Heoc2a7e812009-08-14 15:00:53 +090028config NEED_PER_CPU_EMBED_FIRST_CHUNK
travis@sgi.comb32ef632008-01-30 13:32:51 +010029 def_bool PPC64
30
Michael Ellerman551b81f2009-10-13 19:44:44 +000031config NR_IRQS
32 int "Number of virtual interrupt numbers"
Anton Blanchard859aefc2010-01-31 01:14:03 +000033 range 32 32768
Michael Ellerman551b81f2009-10-13 19:44:44 +000034 default "512"
35 help
36 This defines the number of virtual interrupt numbers the kernel
37 can manage. Virtual interrupt numbers are what you see in
38 /proc/interrupts. If you configure your system to have too few,
39 drivers will fail to load or worse - handle with care.
40
Christoph Hellwigfd3e0bb2008-04-17 14:35:00 +100041config STACKTRACE_SUPPORT
42 bool
43 default y
44
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100045config TRACE_IRQFLAGS_SUPPORT
46 bool
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100047 default y
48
49config LOCKDEP_SUPPORT
50 bool
51 default y
52
Paul Mackerras14cf11a2005-09-26 16:04:21 +100053config RWSEM_GENERIC_SPINLOCK
54 bool
55
56config RWSEM_XCHGADD_ALGORITHM
57 bool
58 default y
59
Nick Piggin95c354f2008-01-30 13:31:20 +010060config GENERIC_LOCKBREAK
61 bool
62 default y
63 depends on SMP && PREEMPT
64
David Howellsf0d1b0b2006-12-08 02:37:49 -080065config ARCH_HAS_ILOG2_U32
66 bool
David Howellsef55d532006-12-08 02:37:53 -080067 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080068
69config ARCH_HAS_ILOG2_U64
70 bool
David Howellsef55d532006-12-08 02:37:53 -080071 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080072
Akinobu Mitae779b2f2006-03-26 01:39:33 -080073config GENERIC_HWEIGHT
74 bool
75 default y
76
Benjamin Herrenschmidt817820b2015-06-24 15:25:31 +100077config ARCH_HAS_DMA_SET_COHERENT_MASK
78 bool
79
Paul Mackerras14cf11a2005-09-26 16:04:21 +100080config PPC
81 bool
82 default y
Nicholas Piggin5b9ff022016-10-13 16:42:55 +110083 select BUILDTIME_EXTABLE_SORT
Mark Salterb7e7c372013-10-07 22:15:32 -040084 select ARCH_MIGHT_HAVE_PC_PARPORT
Mark Salterc74e6d32014-01-01 11:32:26 -080085 select ARCH_MIGHT_HAVE_PC_SERIO
Stephen Rothwelld812c0e12013-03-06 18:11:51 +000086 select BINFMT_ELF
Kees Cook2b68f6c2015-04-14 15:48:00 -070087 select ARCH_HAS_ELF_RANDOMIZE
Stephen Rothwell10f85f42010-06-29 12:43:34 +100088 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -080089 select OF_EARLY_FLATTREE
Marek Szyprowski708b7ee2014-02-28 14:42:56 +010090 select OF_RESERVED_MEM
Steven Rostedt2b79d692009-01-06 18:49:17 +000091 select HAVE_FTRACE_MCOUNT_RECORD
92 select HAVE_DYNAMIC_FTRACE
Torsten Duwe8c50b722016-03-03 15:27:00 +110093 select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL
Steven Rostedt606576c2008-10-06 19:06:12 -040094 select HAVE_FUNCTION_TRACER
Steven Rostedt60ce8f72009-02-11 20:06:43 -050095 select HAVE_FUNCTION_GRAPH_TRACER
Catalin Marinas7ac57a82012-10-08 16:28:16 -070096 select SYSCTL_EXCEPTION_TRACE
Stephen Rothwell4febd952013-03-07 15:48:16 +110097 select VIRT_TO_BUS if !PPC64
Sam Ravnborgec7748b2008-02-09 10:46:40 +010098 select HAVE_IDE
Benjamin Herrenschmidta1f242f2008-07-23 21:27:08 -070099 select HAVE_IOREMAP_PROT
Anton Blanchard8a18cc02016-09-25 22:35:40 +1000100 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
Mathieu Desnoyers3f550092008-02-02 15:10:35 -0500101 select HAVE_KPROBES
Jason Wessel17ce4522008-07-23 11:30:15 -0500102 select HAVE_ARCH_KGDB
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -0800103 select HAVE_KRETPROBES
Roland McGrathdec2b0d2008-07-27 16:53:20 +1000104 select HAVE_ARCH_TRACEHOOK
Yinghai Lu95f72d12010-07-12 14:36:09 +1000105 select HAVE_MEMBLOCK
Tejun Heo1d7cfe12011-12-08 10:22:08 -0800106 select HAVE_MEMBLOCK_NODE_MAP
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000107 select HAVE_DMA_API_DEBUG
Steven Rostedt4e491d12008-05-14 23:49:44 -0400108 select HAVE_OPROFILE
Catalin Marinasb69ec422012-10-08 16:28:11 -0700109 select HAVE_DEBUG_KMEMLEAK
Laura Abbott308c09f2014-08-08 14:23:25 -0700110 select ARCH_HAS_SG_CHAIN
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000111 select GENERIC_ATOMIC64 if PPC32
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200112 select HAVE_PERF_EVENTS
Anju Ted4a4ef2016-02-20 10:32:46 +0530113 select HAVE_PERF_REGS
Chandan Kumar17ed7c32016-04-28 15:01:08 +0530114 select HAVE_PERF_USER_STACK_DUMP
Mahesh Salgaonkar359e4282010-04-07 18:10:20 +1000115 select HAVE_REGS_AND_STACK_ACCESS_API
K.Prasad5aae8a52010-06-15 11:35:19 +0530116 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
Will Deaconc1d7e012012-07-30 14:42:46 -0700117 select ARCH_WANT_IPC_PARSE_VERSION
Grant Likelyad5b7f132012-01-30 08:02:19 +0000118 select SPARSE_IRQ
Grant Likelycc79ca62012-02-16 01:37:49 -0700119 select IRQ_DOMAIN
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100120 select GENERIC_IRQ_SHOW
121 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000122 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700123 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000124 select HAVE_SYSCALL_TRACEPOINTS
Naveen N. Rao156d0e22016-06-22 21:55:07 +0530125 select HAVE_CBPF_JIT if !PPC64
126 select HAVE_EBPF_JIT if PPC64
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000127 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800128 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Riku Voipio957e3fa2014-12-12 16:57:44 -0800129 select ARCH_HAS_GCOV_PROFILE_ALL
Thomas Gleixner17e32ea2012-04-20 13:05:48 +0000130 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000131 select GENERIC_CMOS_UPDATE
John Stultz70639422012-09-04 15:34:21 -0400132 select GENERIC_TIME_VSYSCALL_OLD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000133 select GENERIC_CLOCKEVENTS
Preeti U Murthy0d948732014-02-26 05:39:06 +0530134 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
135 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Paul Mackerras16293722012-05-28 13:03:47 +1000136 select GENERIC_STRNCPY_FROM_USER
137 select GENERIC_STRNLEN_USER
David Howells786d35d2012-09-28 14:31:03 +0930138 select HAVE_MOD_ARCH_SPECIFIC
139 select MODULES_USE_ELF_RELA
Al Viro0bcfe542012-10-26 23:08:25 -0400140 select CLONE_BACKWARDS
David Woodhousefe3955c2012-12-19 15:14:17 +0000141 select ARCH_USE_BUILTIN_BSWAP
Al Viro0980cae2012-12-25 16:23:09 -0500142 select OLD_SIGSUSPEND
Al Viro09a4d5d2012-12-25 19:27:42 -0500143 select OLD_SIGACTION if PPC32
Dave Hansend1a1dc02013-07-01 13:04:42 -0700144 select HAVE_DEBUG_STACKOVERFLOW
Frederic Weisbecker62d26c82013-09-24 17:18:36 +0200145 select HAVE_IRQ_EXIT_ON_IRQ_STACK
Michael Ellerman3405d232014-01-15 18:14:28 +1100146 select ARCH_USE_CMPXCHG_LOCKREF if PPC64
AKASHI Takahiro7a017722014-02-25 18:16:24 +0900147 select HAVE_ARCH_AUDITSYSCALL
Peter Zijlstra4badad32014-06-06 19:53:16 +0200148 select ARCH_SUPPORTS_ATOMIC_RMW
Anton Blancharda75c3802014-09-19 09:40:21 +1000149 select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
Anton Blanchard10239732014-09-17 22:15:33 +1000150 select NO_BOOTMEM
Aneesh Kumar K.Vb30e7592014-11-05 21:57:41 +0530151 select HAVE_GENERIC_RCU_GUP
Anton Blanchardc54b2bf2015-04-09 12:52:56 +1000152 select HAVE_PERF_EVENTS_NMI if PPC64
Petr Mladek42a0bb32016-05-20 17:00:33 -0700153 select HAVE_NMI if PERF_EVENTS
Borislav Petkovb01aec92015-05-21 19:59:31 +0200154 select EDAC_SUPPORT
155 select EDAC_ATOMIC_SCRUB
Benjamin Herrenschmidt817820b2015-06-24 15:25:31 +1000156 select ARCH_HAS_DMA_SET_COHERENT_MASK
Dan Williams21266be2015-11-19 18:19:29 -0800157 select ARCH_HAS_DEVMEM_IS_ALLOWED
Michael Ellerman2449acc2015-07-23 20:21:09 +1000158 select HAVE_ARCH_SECCOMP_FILTER
Daniel Axtensbf76f732016-01-20 15:00:58 -0800159 select ARCH_HAS_UBSAN_SANITIZE_ALL
Li Zhang7f2bd002016-03-17 14:20:19 -0700160 select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
Michael Ellerman85baa092016-03-24 22:04:05 +1100161 select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
Alastair D'Silva4a120272016-07-19 14:03:52 +1000162 select GENERIC_CPU_AUTOPROBE
Christophe Leroyc223c902016-05-17 08:33:46 +0200163 select HAVE_VIRT_CPU_ACCOUNTING
Kees Cook1d3c1322016-06-23 15:10:01 -0700164 select HAVE_ARCH_HARDENED_USERCOPY
Oliver O'Halloran22750d92016-09-22 16:54:30 +1000165 select HAVE_KERNEL_GZIP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000166
Anton Blanchard7a332b02013-09-23 12:04:51 +1000167config GENERIC_CSUM
168 def_bool CPU_LITTLE_ENDIAN
169
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000170config EARLY_PRINTK
171 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100172 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000173
Jason Baronb71d47c2013-11-25 23:23:11 +0000174config PANIC_TIMEOUT
175 int
176 default 180
177
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000178config COMPAT
179 bool
180 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800181 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400182 select ARCH_WANT_OLD_COMPAT_IPC
Al Viro09a4d5d2012-12-25 19:27:42 -0500183 select COMPAT_OLD_SIGACTION
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000184
185config SYSVIPC_COMPAT
186 bool
187 depends on COMPAT && SYSVIPC
188 default y
189
190# All PPC32s use generic nvram driver through ppc_md
191config GENERIC_NVRAM
192 bool
193 default y if PPC32
194
Ingo Molnarae1e9132008-11-11 09:05:16 +0100195config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000196 bool
197 default y
198
199config ARCH_MAY_HAVE_PC_FDC
200 bool
Pranith Kumar3484a312014-08-18 17:13:41 -0400201 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000202
Kumar Gala08264cb2006-01-10 21:43:56 -0600203config PPC_UDBG_16550
204 bool
205 default n
206
Kumar Gala08264cb2006-01-10 21:43:56 -0600207config GENERIC_TBSYNC
208 bool
209 default y if PPC32 && SMP
210 default n
211
Al Viroe65e1fc2006-09-12 03:04:40 -0400212config AUDIT_ARCH
213 bool
214 default y
215
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800216config GENERIC_BUG
217 bool
218 default y
219 depends on BUG
220
Johannes Bergb3028872007-03-20 05:18:02 +1100221config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500222 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100223 bool
224
David Gibson6c5b59b2011-04-14 18:29:16 +0000225config EPAPR_BOOT
226 bool
227 help
228 Used to allow a board to specify it wants an ePAPR compliant wrapper.
229 default n
230
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600231config DEFAULT_UIMAGE
232 bool
233 help
234 Used to allow a board to specify it wants a uImage built by default
235 default n
236
Johannes Berg801e4062007-12-08 02:12:39 +0100237config ARCH_HIBERNATION_POSSIBLE
238 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000239 default y
240
Johannes Bergf4cb5702007-12-08 02:14:00 +0100241config ARCH_SUSPEND_POSSIBLE
242 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400243 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Zhao Chenhuid0832a72012-07-20 20:42:36 +0800244 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
245 || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100246
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100247config PPC_DCR_NATIVE
248 bool
249 default n
250
251config PPC_DCR_MMIO
252 bool
253 default n
254
255config PPC_DCR
256 bool
257 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
258 default y
259
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100260config PPC_OF_PLATFORM_PCI
261 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100262 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100263 depends on PPC64 # not supported on 32 bits yet
264 default n
265
Akinobu Mita6a11f752009-03-31 15:23:17 -0700266config ARCH_SUPPORTS_DEBUG_PAGEALLOC
Kim Phillipsce614c32015-01-26 13:22:22 -0600267 depends on PPC32 || PPC_STD_MMU_64
Akinobu Mita6a11f752009-03-31 15:23:17 -0700268 def_bool y
269
Ananth N Mavinakayanahalli8b7b80b2012-08-23 21:31:32 +0000270config ARCH_SUPPORTS_UPROBES
271 def_bool y
272
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000273config PPC_ADV_DEBUG_REGS
274 bool
275 depends on 40x || BOOKE
276 default y
277
278config PPC_ADV_DEBUG_IACS
279 int
280 depends on PPC_ADV_DEBUG_REGS
281 default 4 if 44x
282 default 2
283
284config PPC_ADV_DEBUG_DACS
285 int
286 depends on PPC_ADV_DEBUG_REGS
287 default 2
288
289config PPC_ADV_DEBUG_DVCS
290 int
291 depends on PPC_ADV_DEBUG_REGS
292 default 2 if 44x
293 default 0
294
295config PPC_ADV_DEBUG_DAC_RANGE
296 bool
297 depends on PPC_ADV_DEBUG_REGS && 44x
298 default y
299
Suzuki K. Poulose5e249d42013-01-07 00:26:57 +0000300config PPC_EMULATE_SSTEP
301 bool
302 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
303
Scott Wood1c980252014-08-08 18:40:42 -0500304config ZONE_DMA32
305 bool
306 default y if PPC64
307
Kirill A. Shutemov06ef42a2015-04-14 15:45:57 -0700308config PGTABLE_LEVELS
309 int
310 default 2 if !PPC64
Aneesh Kumar K.V368ced72016-03-01 09:45:13 +0530311 default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64
Kirill A. Shutemov06ef42a2015-04-14 15:45:57 -0700312 default 4
313
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000314source "init/Kconfig"
315
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700316source "kernel/Kconfig.freezer"
317
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100318source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500319source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000320
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000321menu "Kernel options"
322
323config HIGHMEM
324 bool "High memory support"
325 depends on PPC32
326
327source kernel/Kconfig.hz
328source kernel/Kconfig.preempt
329source "fs/Kconfig.binfmt"
330
Mel Gormanba72cb82007-11-28 16:21:13 -0800331config HUGETLB_PAGE_SIZE_VARIABLE
332 bool
333 depends on HUGETLB_PAGE
334 default y
335
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000336config MATH_EMULATION
337 bool "Math emulation"
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000338 depends on 4xx || 8xx || PPC_MPC832x || BOOKE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000339 ---help---
340 Some PowerPC chips designed for embedded applications do not have
341 a floating-point unit and therefore do not implement the
342 floating-point instructions in the PowerPC instruction set. If you
343 say Y here, the kernel will include code to emulate a floating-point
344 unit, which will allow programs that use floating-point
345 instructions to run.
346
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000347 This is also useful to emulate missing (optional) instructions
348 such as fsqrt on cores that do have an FPU but do not implement
349 them (such as Freescale BookE).
350
Kevin Haoe05c0e82013-07-16 19:57:15 +0800351choice
352 prompt "Math emulation options"
353 default MATH_EMULATION_FULL
354 depends on MATH_EMULATION
355
356config MATH_EMULATION_FULL
357 bool "Emulate all the floating point instructions"
358 ---help---
359 Select this option will enable the kernel to support to emulate
360 all the floating point instructions. If your SoC doesn't have
361 a FPU, you should select this.
362
363config MATH_EMULATION_HW_UNIMPLEMENTED
364 bool "Just emulate the FPU unimplemented instructions"
365 ---help---
366 Select this if you know there does have a hardware FPU on your
367 SoC, but some floating point instructions are not implemented by that.
368
369endchoice
370
Michael Neuling3d72bbc2013-02-13 16:21:43 +0000371config PPC_TRANSACTIONAL_MEM
372 bool "Transactional Memory support for POWERPC"
373 depends on PPC_BOOK3S_64
374 depends on SMP
Michael Neuling7b37a122014-01-08 21:25:31 +1100375 select ALTIVEC
376 select VSX
Michael Neuling3d72bbc2013-02-13 16:21:43 +0000377 default n
378 ---help---
379 Support user-mode Transactional Memory on POWERPC.
380
Torsten Duwe8c50b722016-03-03 15:27:00 +1100381config DISABLE_MPROFILE_KERNEL
382 bool "Disable use of mprofile-kernel for kernel tracing"
383 depends on PPC64 && CPU_LITTLE_ENDIAN
384 default y
385 help
386 Selecting this options disables use of the mprofile-kernel ABI for
387 kernel tracing. That will cause options such as live patching
388 (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to
389 be disabled also.
390
391 If you have a toolchain which supports mprofile-kernel, then you can
392 enable this. Otherwise leave it disabled. If you're not sure, say
393 "N".
394
395config MPROFILE_KERNEL
396 depends on PPC64 && CPU_LITTLE_ENDIAN
397 def_bool !DISABLE_MPROFILE_KERNEL
398
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800399config IOMMU_HELPER
400 def_bool PPC64
401
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000402config SWIOTLB
403 bool "SWIOTLB support"
404 default n
405 select IOMMU_HELPER
406 ---help---
407 Support for IO bounce buffering for systems without an IOMMU.
408 This allows us to DMA to the full physical address space on
409 platforms where the size of a physical address is larger
410 than the bus address. Not all platforms support this.
411
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000412config HOTPLUG_CPU
413 bool "Support for enabling/disabling CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +1000414 depends on SMP && (PPC_PSERIES || \
chenhui zhao2f4f1f82015-11-20 17:14:01 +0800415 PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000416 ---help---
417 Say Y here to be able to disable and re-enable individual
418 CPUs at runtime on SMP machines.
419
420 Say N if you are unsure.
421
Nathan Fontenot12633e82009-11-25 17:23:25 +0000422config ARCH_CPU_PROBE_RELEASE
423 def_bool y
424 depends on HOTPLUG_CPU
425
Yasunori Gotocc576372006-06-29 02:24:27 -0700426config ARCH_ENABLE_MEMORY_HOTPLUG
427 def_bool y
428
Badari Pulavartya99824f2008-02-05 00:10:18 -0800429config ARCH_HAS_WALK_MEMORY
430 def_bool y
431
Badari Pulavarty14824712008-02-05 00:10:17 -0800432config ARCH_ENABLE_MEMORY_HOTREMOVE
433 def_bool y
434
Mahesh Salgaonkarf2296a32013-11-15 09:50:50 +0530435config PPC64_SUPPORTS_MEMORY_FAILURE
436 bool "Add support for memory hwpoison"
437 depends on PPC_BOOK3S_64
438 default "y" if PPC_POWERNV
439 select ARCH_SUPPORTS_MEMORY_FAILURE
440
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000441config KEXEC
Kees Cook642e56f2013-01-16 18:53:25 -0800442 bool "kexec system call"
Tiejun Chen96eea642015-10-06 22:48:22 -0500443 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E
Dave Young2965faa2015-09-09 15:38:55 -0700444 select KEXEC_CORE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000445 help
446 kexec is a system call that implements the ability to shutdown your
447 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400448 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000449 you can start any kernel with it, not just Linux.
450
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400451 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000452
453 It is an ongoing process to be certain the hardware in a machine
454 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +0200455 initially work for you. As of this writing the exact hardware
456 interface is strongly in flux, so no good recommendation can be
457 made.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000458
Kevin Hao4c91bd62016-07-13 09:14:39 +0800459config RELOCATABLE
460 bool "Build a relocatable kernel"
461 depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE))
462 select NONSTATIC_KERNEL
463 help
464 This builds a kernel image that is capable of running at the
465 location the kernel is loaded at. For ppc32, there is no any
466 alignment restrictions, and this feature is a superset of
467 DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use
468 16k-aligned base address. The kernel is linked as a
469 position-independent executable (PIE) and contains dynamic relocations
470 which are processed early in the bootup process.
471
472 One use is for the kexec on panic case where the recovery kernel
473 must live at a different physical address than the primary
474 kernel.
475
476 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
477 it has been loaded at and the compile time physical addresses
478 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
479 setting can still be useful to bootwrappers that need to know the
480 load address of the kernel (eg. u-boot/mkimage).
481
Haren Mynenie8625d462006-01-14 13:48:25 -0800482config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000483 bool "Build a kdump crash kernel"
Suzuki Poulose47da4212012-04-15 22:27:35 +0000484 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
Guenter Roeckfb43e842014-06-30 11:45:30 -0700485 select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800486 help
487 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000488 The same kernel binary can be used as production kernel and dump
489 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800490
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000491config FA_DUMP
492 bool "Firmware-assisted dump"
Michael Ellerman90890b12013-10-28 15:00:35 +1100493 depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
Manish Ahuja242f2712008-03-22 10:50:50 +1100494 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000495 A robust mechanism to get reliable kernel crash dump with
496 assistance from firmware. This approach does not use kexec,
497 instead firmware assists in booting the kdump kernel
498 while preserving memory contents. Firmware-assisted dump
499 is meant to be a kdump replacement offering robustness and
500 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100501
502 If unsure, say "N"
503
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000504config IRQ_ALL_CPUS
505 bool "Distribute interrupts on all CPUs by default"
Paul Bolle6cf09b92013-05-15 11:21:01 +0200506 depends on SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000507 help
508 This option gives the kernel permission to distribute IRQs across
509 multiple CPUs. Saying N here will route all IRQs to the first
510 CPU. Generally saying Y is safe, although some problems have been
511 reported with SMP Power Macintoshes with this option enabled.
512
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700513config NUMA
514 bool "NUMA support"
515 depends on PPC64
516 default y if SMP && PPC_PSERIES
517
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700518config NODES_SHIFT
519 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000520 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700521 default "4"
522 depends on NEED_MULTIPLE_NODES
523
Nishanth Aravamudan8c272262014-05-19 11:14:23 -0700524config USE_PERCPU_NUMA_NODE_ID
525 def_bool y
526 depends on NUMA
527
Nishanth Aravamudan64bb80d2014-05-16 16:41:20 -0700528config HAVE_MEMORYLESS_NODES
529 def_bool y
530 depends on NUMA
531
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000532config ARCH_SELECT_MEMORY_MODEL
533 def_bool y
534 depends on PPC64
535
536config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000537 def_bool y
538 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000539
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000540config ARCH_SPARSEMEM_ENABLE
541 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000542 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700543 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100544
545config ARCH_SPARSEMEM_DEFAULT
546 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100547 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000548
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100549config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000550 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100551
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700552source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000553
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800554config ARCH_MEMORY_PROBE
555 def_bool y
556 depends on MEMORY_HOTPLUG
557
Andy Whitcroft75167952006-10-21 10:24:14 -0700558# Some NUMA nodes have memory ranges that span
559# other nodes. Even though a pfn is valid and
560# between a node's start and end pfns, it may not
561# reside on that node. See memmap_init_zone()
562# for details.
563config NODES_SPAN_OTHER_NODES
564 def_bool y
565 depends on NEED_MULTIPLE_NODES
566
Yuri Tikhonove1240122009-01-29 01:40:44 +0000567config STDBINUTILS
568 bool "Using standard binutils settings"
569 depends on 44x
570 default y
571 help
572 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
573 Note, that kernel will be able to run only those applications,
574 which had been compiled using binutils later than 2.17.50.0.3 with
575 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
576 the older binutils, you can patch them with a trivial patch, which
577 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
578
Ilya Yanokca9153a2008-12-11 04:55:41 +0300579choice
580 prompt "Page size"
581 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100582 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300583 Select the kernel logical page size. Increasing the page size
584 will reduce software overhead at each page boundary, allow
585 hardware prefetch mechanisms to be more effective, and allow
586 larger dma transfers increasing IO efficiency and reducing
587 overhead. However the utilization of memory will increase.
588 For example, each cached file will using a multiple of the
589 page size to hold its contents and the difference between the
590 end of file and the end of page is wasted.
591
592 Some dedicated systems, such as software raid serving with
593 accelerated calculations, have shown significant increases.
594
595 If you configure a 64 bit kernel for 64k pages but the
596 processor does not support them, then the kernel will simulate
597 them with 4k pages, loading them on demand, but with the
598 reduced software overhead and larger internal fragmentation.
599 For the 32 bit kernel, a large page option will not be offered
600 unless it is supported by the configured processor.
601
602 If unsure, choose 4K_PAGES.
603
604config PPC_4K_PAGES
605 bool "4k page size"
Aneesh Kumar K.V19f97c92016-01-29 22:32:49 +0530606 select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300607
608config PPC_16K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000609 bool "16k page size"
610 depends on 44x || PPC_8xx
Ilya Yanokca9153a2008-12-11 04:55:41 +0300611
612config PPC_64K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000613 bool "64k page size"
614 depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64)
Aneesh Kumar K.V19f97c92016-01-29 22:32:49 +0530615 select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300616
Yuri Tikhonove1240122009-01-29 01:40:44 +0000617config PPC_256K_PAGES
Michael Ellerman55f8b5b2015-08-07 16:19:46 +1000618 bool "256k page size"
619 depends on 44x && !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000620 help
621 Make the page size 256k.
622
623 As the ELF standard only requires alignment to support page
624 sizes up to 64k, you will need to compile all of your user
625 space applications with a non-standard binutils settings
626 (see the STDBINUTILS description for details).
627
628 Say N unless you know what you are doing.
629
Ilya Yanokca9153a2008-12-11 04:55:41 +0300630endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100631
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000632config FORCE_MAX_ZONEORDER
633 int "Maximum zone order"
Rashmica Guptaa7ee5392016-02-19 16:38:47 +1100634 range 8 9 if PPC64 && PPC_64K_PAGES
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000635 default "9" if PPC64 && PPC_64K_PAGES
Aneesh Kumar K.Vd5a1e422016-09-19 23:01:33 +0530636 range 13 13 if PPC64 && !PPC_64K_PAGES
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000637 default "13" if PPC64 && !PPC_64K_PAGES
638 range 9 64 if PPC32 && PPC_16K_PAGES
639 default "9" if PPC32 && PPC_16K_PAGES
640 range 7 64 if PPC32 && PPC_64K_PAGES
641 default "7" if PPC32 && PPC_64K_PAGES
642 range 5 64 if PPC32 && PPC_256K_PAGES
643 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000644 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000645 default "11"
646 help
647 The kernel memory allocator divides physically contiguous memory
648 blocks into "zones", where each zone is a power of two number of
649 pages. This option selects the largest power of two that the kernel
650 keeps in the memory allocator. If you need to allocate very large
651 blocks of physically contiguous memory, then you may need to
652 increase this value.
653
654 This config option is actually maximum order plus one. For example,
655 a value of 11 means that the largest free memory block is 2^10 pages.
656
657 The page size is not necessarily 4KB. For example, on 64-bit
658 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
659 this in mind when choosing a value for this option.
660
Paul Mackerrasfa282372008-01-24 08:35:13 +1100661config PPC_SUBPAGE_PROT
662 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300663 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100664 help
665 This option adds support for a system call to allow user programs
666 to set access permissions (read/write, readonly, or no access)
667 on the 4k subpages of each 64k page.
668
Ian Munsiee83d0162014-10-08 19:54:50 +1100669config PPC_COPRO_BASE
670 bool
671 default n
672
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000673config SCHED_SMT
674 bool "SMT (Hyperthreading) scheduler support"
675 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000676 help
677 SMT scheduler support improves the CPU scheduler's decision making
678 when dealing with POWER5 cpus at a cost of slightly increased
679 overhead in some places. If unsure say N here.
680
Michael Neulingb92a66a2012-09-10 00:35:26 +0000681config PPC_DENORMALISATION
682 bool "PowerPC denormalisation exception handling"
683 depends on PPC_BOOK3S_64
Anton Blanchard4e90a2a2013-07-31 16:31:26 +1000684 default "y" if PPC_POWERNV
Michael Neulingb92a66a2012-09-10 00:35:26 +0000685 ---help---
686 Add support for handling denormalisation of single precision
687 values. Useful for bare metal only. If unsure say Y here.
688
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000689config CMDLINE_BOOL
690 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000691
692config CMDLINE
693 string "Initial kernel command string"
694 depends on CMDLINE_BOOL
695 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
696 help
697 On some platforms, there is currently no way for the boot loader to
698 pass arguments to the kernel. For these platforms, you can supply
699 some command-line options at build time by entering them here. In
700 most cases you will need to specify the root device here.
701
Sebastian Siewioreb3b80f2014-02-20 21:48:17 +0100702config CMDLINE_FORCE
703 bool "Always use the default kernel command string"
704 depends on CMDLINE_BOOL
705 help
706 Always use the default kernel command string, even if the boot
707 loader passes other arguments to the kernel.
708 This is useful if you cannot or don't want to change the
709 command-line options your boot loader passes to the kernel.
710
Grant Likelyc356aa42008-07-09 09:41:52 -0600711config EXTRA_TARGETS
712 string "Additional default image types"
713 help
714 List additional targets to be built by the bootwrapper here (separated
715 by spaces). This is useful for targets that depend of device tree
716 files in the .dts directory.
717
718 Targets in this list will be build as part of the default build
719 target, or when the user does a 'make zImage' or a
720 'make zImage.initrd'.
721
722 If unsure, leave blank
723
Johannes Bergb28f5082008-01-15 23:17:00 -0500724config ARCH_WANTS_FREEZER_CONTROL
725 def_bool y
726 depends on ADB_PMU
727
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000728source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000729
730config SECCOMP
731 bool "Enable seccomp to safely compute untrusted bytecode"
732 depends on PROC_FS
733 default y
734 help
735 This kernel feature is useful for number crunching applications
736 that may need to compute untrusted bytecode during their
737 execution. By using pipes or other transports made available to
738 the process as file descriptors supporting the read/write
739 syscalls, it's possible to isolate those applications in
740 their own address space using seccomp. Once seccomp is
741 enabled via /proc/<pid>/seccomp, it cannot be disabled
742 and the task is only allowed to execute a few safe syscalls
743 defined by each seccomp mode.
744
745 If unsure, say Y. Only embedded should say N here.
746
747endmenu
748
749config ISA_DMA_API
750 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000751 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000752
753menu "Bus options"
754
755config ISA
756 bool "Support for ISA-bus hardware"
Paul Bolle933ee712013-03-27 00:47:03 +0000757 depends on PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000758 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000759 help
760 Find out whether you have ISA slots on your motherboard. ISA is the
761 name of a bus system, i.e. the way the CPU talks to the other stuff
762 inside your box. If you have an Apple machine, say N here; if you
Paul Bolle933ee712013-03-27 00:47:03 +0000763 have an IBM RS/6000 or pSeries machine, say Y. If you have an
764 embedded board, consult your board documentation.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000765
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800766config ZONE_DMA
767 bool
768 default y
769
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800770config NEED_DMA_MAP_STATE
771 def_bool (PPC64 || NOT_COHERENT_CACHE)
772
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700773config NEED_SG_DMA_LENGTH
774 def_bool y
775
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000776config GENERIC_ISA_DMA
777 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000778 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000779 default y
780
Paul Mackerras25635c72005-10-26 16:36:55 +1000781config PPC_INDIRECT_PCI
782 bool
783 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600784 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000785 default n
786
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000787config EISA
788 bool
789
790config SBUS
791 bool
792
Kumar Gala08264cb2006-01-10 21:43:56 -0600793config FSL_SOC
794 bool
795
Roy Zang55c44992007-07-10 18:44:34 +0800796config FSL_PCI
797 bool
798 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600799 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800800
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400801config FSL_PMC
802 bool
803 default y
804 depends on SUSPEND && (PPC_85xx || PPC_86xx)
805 help
806 Freescale MPC85xx/MPC86xx power management controller support
807 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
808
Victor Gallardod164f6d2010-10-08 10:25:27 +0000809config PPC4xx_CPM
810 bool
811 default y
812 depends on SUSPEND && (44x || 40x)
813 help
814 PPC4xx Clock Power Management (CPM) support (suspend/resume).
815 It also enables support for two different idle states (idle-wait
816 and idle-doze).
817
Stefan Roese2a706912008-03-26 22:39:50 +1100818config 4xx_SOC
819 bool
820
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400821config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800822 bool "Freescale Local Bus support"
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400823 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800824 Enables reporting of errors from the Freescale local bus
825 controller. Also contains some common code used by
826 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400827
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400828config FSL_GTM
829 bool
830 depends on PPC_83xx || QUICC_ENGINE || CPM2
831 help
832 Freescale General-purpose Timers support
833
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000834# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
835config MCA
836 bool
837
John Rigbyb5005632008-06-26 11:07:56 -0600838# Platforms that what PCI turned unconditionally just do select PCI
839# in their config node. Platforms that want to choose at config
840# time should select PPC_PCI_CHOICE
841config PPC_PCI_CHOICE
842 bool
843
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000844config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600845 bool "PCI support" if PPC_PCI_CHOICE
846 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000847 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000848 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200849 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000850 help
851 Find out whether your system includes a PCI bus. PCI is the name of
852 a bus system, i.e. the way the CPU talks to the other stuff inside
853 your box. If you say Y here, the kernel will include drivers and
854 infrastructure code to support PCI bus devices.
855
856config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600857 def_bool PCI
858
859config PCI_SYSCALL
860 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000861
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000862config PCI_QSPAN
863 bool "QSpan PCI"
864 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000865 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000866 help
867 Say Y here if you have a system based on a Motorola 8xx-series
868 embedded processor with a QSPAN PCI interface, otherwise say N.
869
870config PCI_8260
871 bool
872 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000873 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000874 default y
875
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000876source "drivers/pci/Kconfig"
877
878source "drivers/pcmcia/Kconfig"
879
Zhang Weif1f389d2008-04-18 13:33:39 -0700880config HAS_RAPIDIO
881 bool
882 default n
883
884config RAPIDIO
Alexandre Bounine56abde72014-01-23 15:56:04 -0800885 tristate "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700886 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700887 help
888 If you say Y here, the kernel will include drivers and
889 infrastructure code to support RapidIO interconnect devices.
890
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700891config FSL_RIO
892 bool "Freescale Embedded SRIO Controller support"
Alexandre Bounine56abde72014-01-23 15:56:04 -0800893 depends on RAPIDIO = y && HAS_RAPIDIO
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700894 default "n"
895 ---help---
896 Include support for RapidIO controller on Freescale embedded
897 processors (MPC8548, MPC8641, etc).
898
Zhang Weif1f389d2008-04-18 13:33:39 -0700899source "drivers/rapidio/Kconfig"
900
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000901endmenu
902
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000903config NONSTATIC_KERNEL
904 bool
905 default n
906
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000907menu "Advanced setup"
908 depends on PPC32
909
910config ADVANCED_OPTIONS
911 bool "Prompt for advanced kernel configuration options"
912 help
913 This option will enable prompting for a variety of advanced kernel
914 configuration options. These options can cause the kernel to not
915 work if they are set incorrectly, but can be used to optimize certain
916 aspects of kernel memory management.
917
918 Unless you know what you are doing, say N here.
919
920comment "Default settings for advanced configuration options are used"
921 depends on !ADVANCED_OPTIONS
922
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000923config LOWMEM_SIZE_BOOL
924 bool "Set maximum low memory"
925 depends on ADVANCED_OPTIONS
926 help
927 This option allows you to set the maximum amount of memory which
928 will be used as "low memory", that is, memory which the kernel can
929 access directly, without having to set up a kernel virtual mapping.
930 This can be useful in optimizing the layout of kernel virtual
931 memory.
932
933 Say N here unless you know what you are doing.
934
935config LOWMEM_SIZE
936 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
937 default "0x30000000"
938
Trent Piepho96051462008-12-08 19:34:58 -0800939config LOWMEM_CAM_NUM_BOOL
940 bool "Set number of CAMs to use to map low memory"
941 depends on ADVANCED_OPTIONS && FSL_BOOKE
942 help
943 This option allows you to set the maximum number of CAM slots that
944 will be used to map low memory. There are a limited number of slots
945 available and even more limited number that will fit in the L1 MMU.
946 However, using more entries will allow mapping more low memory. This
947 can be useful in optimizing the layout of kernel virtual memory.
948
949 Say N here unless you know what you are doing.
950
951config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400952 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800953 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
954 default 3
955
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000956config DYNAMIC_MEMSTART
Kees Cook642e56f2013-01-16 18:53:25 -0800957 bool "Enable page aligned dynamic load address for kernel"
958 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000959 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000960 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000961 This option enables the kernel to be loaded at any page aligned
962 physical address. The kernel creates a mapping from KERNELBASE to
963 the address where the kernel is loaded. The page size here implies
964 the TLB page size of the mapping for kernel on the particular platform.
965 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000966
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000967 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
968 kernel image, where the only restriction is the page aligned kernel
969 load address. When this option is enabled, the compile time physical
970 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000971
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000972 This option is overridden by CONFIG_RELOCATABLE
973
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000974config PAGE_OFFSET_BOOL
975 bool "Set custom page offset address"
976 depends on ADVANCED_OPTIONS
977 help
978 This option allows you to set the kernel virtual address at which
979 the kernel will map low memory. This can be useful in optimizing
980 the virtual memory layout of the system.
981
982 Say N here unless you know what you are doing.
983
984config PAGE_OFFSET
985 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
986 default "0xc0000000"
987
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000988config KERNEL_START_BOOL
989 bool "Set custom kernel base address"
990 depends on ADVANCED_OPTIONS
991 help
992 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000993 the kernel will be loaded. Normally this should match PAGE_OFFSET
994 however there are times (like kdump) that one might not want them
995 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000996
997 Say N here unless you know what you are doing.
998
999config KERNEL_START
1000 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001001 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +00001002 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001003 default "0xc0000000"
1004
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001005config PHYSICAL_START_BOOL
1006 bool "Set physical address where the kernel is loaded"
1007 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
1008 help
1009 This gives the physical address where the kernel is loaded.
1010
1011 Say N here unless you know what you are doing.
1012
1013config PHYSICAL_START
1014 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +00001015 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001016 default "0x00000000"
1017
1018config PHYSICAL_ALIGN
1019 hex
Trent Piephoc8f35702008-12-08 19:34:59 -08001020 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001021 help
1022 This value puts the alignment restrictions on physical address
1023 where kernel is loaded and run from. Kernel is compiled for an
1024 address which meets above alignment restriction.
1025
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001026config TASK_SIZE_BOOL
1027 bool "Set custom user task size"
1028 depends on ADVANCED_OPTIONS
1029 help
1030 This option allows you to set the amount of virtual address space
1031 allocated to user tasks. This can be useful in optimizing the
1032 virtual memory layout of the system.
1033
1034 Say N here unless you know what you are doing.
1035
1036config TASK_SIZE
1037 hex "Size of user task space" if TASK_SIZE_BOOL
Paul Bolle933ee712013-03-27 00:47:03 +00001038 default "0x80000000" if PPC_8xx
Kumar Gala4d9e55102007-10-11 13:40:21 -05001039 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001040
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +10001041config CONSISTENT_SIZE_BOOL
1042 bool "Set custom consistent memory pool size"
1043 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1044 help
1045 This option allows you to set the size of the
1046 consistent memory pool. This pool of virtual memory
1047 is used to make consistent memory allocations.
1048
1049config CONSISTENT_SIZE
1050 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1051 default "0x00200000" if NOT_COHERENT_CACHE
1052
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001053config PIN_TLB
1054 bool "Pinned Kernel TLBs (860 ONLY)"
1055 depends on ADVANCED_OPTIONS && 8xx
Christophe Leroy62f64b42016-05-17 09:02:56 +02001056
1057config PIN_TLB_IMMR
1058 bool "Pinned TLB for IMMR"
1059 depends on PIN_TLB
1060 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001061endmenu
1062
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001063if PPC64
Paul Mackerrasbdbc29c2013-08-27 16:07:49 +10001064# This value must have zeroes in the bottom 60 bits otherwise lots will break
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001065config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001066 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +10001067 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001068config KERNEL_START
1069 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001070 default "0xc000000000000000"
1071config PHYSICAL_START
1072 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +10001073 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001074endif
1075
Michael Ellermana4da0d52013-10-11 14:07:57 +11001076config ARCH_RANDOM
1077 def_bool n
1078
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001079source "net/Kconfig"
1080
1081source "drivers/Kconfig"
1082
1083source "fs/Kconfig"
1084
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001085source "lib/Kconfig"
1086
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001087source "arch/powerpc/Kconfig.debug"
1088
1089source "security/Kconfig"
1090
1091config KEYS_COMPAT
1092 bool
1093 depends on COMPAT && KEYS
1094 default y
1095
1096source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001097
Sylvain Munaut1088a202007-09-16 20:53:25 +10001098config PPC_LIB_RHEAP
1099 bool
1100
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001101source "arch/powerpc/kvm/Kconfig"
Michael Ellerman85baa092016-03-24 22:04:05 +11001102
1103source "kernel/livepatch/Kconfig"