blob: 9cf59816d3e95a3ba0b02ad00894cc21f6d9042a [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
Arnd Bergmann01f4b8b2008-07-11 00:08:18 +100050config HAVE_LATENCYTOP_SUPPORT
51 def_bool y
52
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100053config TRACE_IRQFLAGS_SUPPORT
54 bool
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100055 default y
56
57config LOCKDEP_SUPPORT
58 bool
59 default y
60
Paul Mackerras14cf11a2005-09-26 16:04:21 +100061config RWSEM_GENERIC_SPINLOCK
62 bool
63
64config RWSEM_XCHGADD_ALGORITHM
65 bool
66 default y
67
Nick Piggin95c354f2008-01-30 13:31:20 +010068config GENERIC_LOCKBREAK
69 bool
70 default y
71 depends on SMP && PREEMPT
72
David Howellsf0d1b0b2006-12-08 02:37:49 -080073config ARCH_HAS_ILOG2_U32
74 bool
David Howellsef55d532006-12-08 02:37:53 -080075 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080076
77config ARCH_HAS_ILOG2_U64
78 bool
David Howellsef55d532006-12-08 02:37:53 -080079 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080080
Akinobu Mitae779b2f2006-03-26 01:39:33 -080081config GENERIC_HWEIGHT
82 bool
83 default y
84
Paul Mackerras14cf11a2005-09-26 16:04:21 +100085config PPC
86 bool
87 default y
Stephen Rothwelld812c0e12013-03-06 18:11:51 +000088 select BINFMT_ELF
Stephen Rothwell10f85f42010-06-29 12:43:34 +100089 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -080090 select OF_EARLY_FLATTREE
Steven Rostedt2b79d692009-01-06 18:49:17 +000091 select HAVE_FTRACE_MCOUNT_RECORD
92 select HAVE_DYNAMIC_FTRACE
Steven Rostedt606576c2008-10-06 19:06:12 -040093 select HAVE_FUNCTION_TRACER
Steven Rostedt60ce8f72009-02-11 20:06:43 -050094 select HAVE_FUNCTION_GRAPH_TRACER
Catalin Marinas7ac57a82012-10-08 16:28:16 -070095 select SYSCTL_EXCEPTION_TRACE
Michael Buesch7444a722008-07-25 01:46:11 -070096 select ARCH_WANT_OPTIONAL_GPIOLIB
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
Johannes Berg58340a02008-07-25 01:45:33 -0700100 select HAVE_EFFICIENT_UNALIGNED_ACCESS
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 Tomonori46bab4e2009-08-04 19:08:26 +0000107 select HAVE_DMA_ATTRS
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000108 select HAVE_DMA_API_DEBUG
Jens Axboeb7d7a242008-06-26 11:22:13 +0200109 select USE_GENERIC_SMP_HELPERS if SMP
Steven Rostedt4e491d12008-05-14 23:49:44 -0400110 select HAVE_OPROFILE
Catalin Marinasb69ec422012-10-08 16:28:11 -0700111 select HAVE_DEBUG_KMEMLEAK
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000112 select GENERIC_ATOMIC64 if PPC32
Catalin Marinas74634492012-07-30 14:41:09 -0700113 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200114 select HAVE_PERF_EVENTS
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
Thomas Gleixner26043622011-01-19 20:39:39 +0100117 select HAVE_GENERIC_HARDIRQS
Will Deaconc1d7e012012-07-30 14:42:46 -0700118 select ARCH_WANT_IPC_PARSE_VERSION
Grant Likelyad5b7f132012-01-30 08:02:19 +0000119 select SPARSE_IRQ
Grant Likelycc79ca62012-02-16 01:37:49 -0700120 select IRQ_DOMAIN
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100121 select GENERIC_IRQ_SHOW
122 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000123 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700124 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000125 select HAVE_SYSCALL_TRACEPOINTS
Sam Ravnborge47b65b2012-05-21 20:45:37 +0200126 select HAVE_BPF_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
Thomas Gleixner17e32ea2012-04-20 13:05:48 +0000129 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000130 select GENERIC_CMOS_UPDATE
John Stultz70639422012-09-04 15:34:21 -0400131 select GENERIC_TIME_VSYSCALL_OLD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000132 select GENERIC_CLOCKEVENTS
Paul Mackerras16293722012-05-28 13:03:47 +1000133 select GENERIC_STRNCPY_FROM_USER
134 select GENERIC_STRNLEN_USER
David Howells786d35d2012-09-28 14:31:03 +0930135 select HAVE_MOD_ARCH_SPECIFIC
136 select MODULES_USE_ELF_RELA
Al Viro0bcfe542012-10-26 23:08:25 -0400137 select CLONE_BACKWARDS
David Woodhousefe3955c2012-12-19 15:14:17 +0000138 select ARCH_USE_BUILTIN_BSWAP
Al Viro0980cae2012-12-25 16:23:09 -0500139 select OLD_SIGSUSPEND
Al Viro09a4d5d2012-12-25 19:27:42 -0500140 select OLD_SIGACTION if PPC32
Dave Hansend1a1dc02013-07-01 13:04:42 -0700141 select HAVE_DEBUG_STACKOVERFLOW
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000142
143config EARLY_PRINTK
144 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100145 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000146
147config COMPAT
148 bool
149 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800150 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400151 select ARCH_WANT_OLD_COMPAT_IPC
Al Viro09a4d5d2012-12-25 19:27:42 -0500152 select COMPAT_OLD_SIGACTION
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000153
154config SYSVIPC_COMPAT
155 bool
156 depends on COMPAT && SYSVIPC
157 default y
158
159# All PPC32s use generic nvram driver through ppc_md
160config GENERIC_NVRAM
161 bool
162 default y if PPC32
163
Ingo Molnarae1e9132008-11-11 09:05:16 +0100164config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000165 bool
166 default y
167
168config ARCH_MAY_HAVE_PC_FDC
169 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100170 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000171
Kumar Gala08264cb2006-01-10 21:43:56 -0600172config PPC_OF
173 def_bool y
174
175config PPC_UDBG_16550
176 bool
177 default n
178
Kumar Gala08264cb2006-01-10 21:43:56 -0600179config GENERIC_TBSYNC
180 bool
181 default y if PPC32 && SMP
182 default n
183
Al Viroe65e1fc2006-09-12 03:04:40 -0400184config AUDIT_ARCH
185 bool
186 default y
187
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800188config GENERIC_BUG
189 bool
190 default y
191 depends on BUG
192
Johannes Bergb3028872007-03-20 05:18:02 +1100193config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500194 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100195 bool
196
David Gibson6c5b59b2011-04-14 18:29:16 +0000197config EPAPR_BOOT
198 bool
199 help
200 Used to allow a board to specify it wants an ePAPR compliant wrapper.
201 default n
202
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600203config DEFAULT_UIMAGE
204 bool
205 help
206 Used to allow a board to specify it wants a uImage built by default
207 default n
208
Scott Woodb09c1642008-01-17 16:31:40 -0600209config REDBOOT
210 bool
211
Johannes Berg801e4062007-12-08 02:12:39 +0100212config ARCH_HIBERNATION_POSSIBLE
213 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000214 default y
215
Johannes Bergf4cb5702007-12-08 02:14:00 +0100216config ARCH_SUSPEND_POSSIBLE
217 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400218 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Zhao Chenhuid0832a72012-07-20 20:42:36 +0800219 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
220 || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100221
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100222config PPC_DCR_NATIVE
223 bool
224 default n
225
226config PPC_DCR_MMIO
227 bool
228 default n
229
230config PPC_DCR
231 bool
232 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
233 default y
234
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100235config PPC_OF_PLATFORM_PCI
236 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100237 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100238 depends on PPC64 # not supported on 32 bits yet
239 default n
240
Akinobu Mita6a11f752009-03-31 15:23:17 -0700241config ARCH_SUPPORTS_DEBUG_PAGEALLOC
242 def_bool y
243
Ananth N Mavinakayanahalli8b7b80b2012-08-23 21:31:32 +0000244config ARCH_SUPPORTS_UPROBES
245 def_bool y
246
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000247config PPC_ADV_DEBUG_REGS
248 bool
249 depends on 40x || BOOKE
250 default y
251
252config PPC_ADV_DEBUG_IACS
253 int
254 depends on PPC_ADV_DEBUG_REGS
255 default 4 if 44x
256 default 2
257
258config PPC_ADV_DEBUG_DACS
259 int
260 depends on PPC_ADV_DEBUG_REGS
261 default 2
262
263config PPC_ADV_DEBUG_DVCS
264 int
265 depends on PPC_ADV_DEBUG_REGS
266 default 2 if 44x
267 default 0
268
269config PPC_ADV_DEBUG_DAC_RANGE
270 bool
271 depends on PPC_ADV_DEBUG_REGS && 44x
272 default y
273
Suzuki K. Poulose5e249d42013-01-07 00:26:57 +0000274config PPC_EMULATE_SSTEP
275 bool
276 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
277
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000278source "init/Kconfig"
279
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700280source "kernel/Kconfig.freezer"
281
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100282source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500283source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000284
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000285menu "Kernel options"
286
287config HIGHMEM
288 bool "High memory support"
289 depends on PPC32
290
291source kernel/Kconfig.hz
292source kernel/Kconfig.preempt
293source "fs/Kconfig.binfmt"
294
Mel Gormanba72cb82007-11-28 16:21:13 -0800295config HUGETLB_PAGE_SIZE_VARIABLE
296 bool
297 depends on HUGETLB_PAGE
298 default y
299
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000300config MATH_EMULATION
301 bool "Math emulation"
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000302 depends on 4xx || 8xx || PPC_MPC832x || BOOKE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000303 ---help---
304 Some PowerPC chips designed for embedded applications do not have
305 a floating-point unit and therefore do not implement the
306 floating-point instructions in the PowerPC instruction set. If you
307 say Y here, the kernel will include code to emulate a floating-point
308 unit, which will allow programs that use floating-point
309 instructions to run.
310
Benjamin Herrenschmidt4e63f8e2013-06-09 17:01:24 +1000311 This is also useful to emulate missing (optional) instructions
312 such as fsqrt on cores that do have an FPU but do not implement
313 them (such as Freescale BookE).
314
Michael Neuling3d72bbc2013-02-13 16:21:43 +0000315config PPC_TRANSACTIONAL_MEM
316 bool "Transactional Memory support for POWERPC"
317 depends on PPC_BOOK3S_64
318 depends on SMP
319 default n
320 ---help---
321 Support user-mode Transactional Memory on POWERPC.
322
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800323config IOMMU_HELPER
324 def_bool PPC64
325
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000326config SWIOTLB
327 bool "SWIOTLB support"
328 default n
329 select IOMMU_HELPER
330 ---help---
331 Support for IO bounce buffering for systems without an IOMMU.
332 This allows us to DMA to the full physical address space on
333 platforms where the size of a physical address is larger
334 than the bus address. Not all platforms support this.
335
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000336config HOTPLUG_CPU
337 bool "Support for enabling/disabling CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +1000338 depends on SMP && (PPC_PSERIES || \
Zhao Chenhuid0832a72012-07-20 20:42:36 +0800339 PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000340 ---help---
341 Say Y here to be able to disable and re-enable individual
342 CPUs at runtime on SMP machines.
343
344 Say N if you are unsure.
345
Nathan Fontenot12633e82009-11-25 17:23:25 +0000346config ARCH_CPU_PROBE_RELEASE
347 def_bool y
348 depends on HOTPLUG_CPU
349
Yasunori Gotocc576372006-06-29 02:24:27 -0700350config ARCH_ENABLE_MEMORY_HOTPLUG
351 def_bool y
352
Badari Pulavartya99824f2008-02-05 00:10:18 -0800353config ARCH_HAS_WALK_MEMORY
354 def_bool y
355
Badari Pulavarty14824712008-02-05 00:10:17 -0800356config ARCH_ENABLE_MEMORY_HOTREMOVE
357 def_bool y
358
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000359config KEXEC
Kees Cook642e56f2013-01-16 18:53:25 -0800360 bool "kexec system call"
361 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000362 help
363 kexec is a system call that implements the ability to shutdown your
364 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400365 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000366 you can start any kernel with it, not just Linux.
367
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400368 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000369
370 It is an ongoing process to be certain the hardware in a machine
371 is properly shutdown, so do not be surprised if this code does not
372 initially work for you. It may help to enable device hotplugging
373 support. As of this writing the exact hardware interface is
374 strongly in flux, so no good recommendation can be made.
375
Haren Mynenie8625d462006-01-14 13:48:25 -0800376config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000377 bool "Build a kdump crash kernel"
Suzuki Poulose47da4212012-04-15 22:27:35 +0000378 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000379 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000380 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800381 help
382 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000383 The same kernel binary can be used as production kernel and dump
384 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800385
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000386config FA_DUMP
387 bool "Firmware-assisted dump"
388 depends on PPC64 && PPC_RTAS && CRASH_DUMP
Manish Ahuja242f2712008-03-22 10:50:50 +1100389 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000390 A robust mechanism to get reliable kernel crash dump with
391 assistance from firmware. This approach does not use kexec,
392 instead firmware assists in booting the kdump kernel
393 while preserving memory contents. Firmware-assisted dump
394 is meant to be a kdump replacement offering robustness and
395 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100396
397 If unsure, say "N"
398
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000399config IRQ_ALL_CPUS
400 bool "Distribute interrupts on all CPUs by default"
401 depends on SMP && !MV64360
402 help
403 This option gives the kernel permission to distribute IRQs across
404 multiple CPUs. Saying N here will route all IRQs to the first
405 CPU. Generally saying Y is safe, although some problems have been
406 reported with SMP Power Macintoshes with this option enabled.
407
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700408config NUMA
409 bool "NUMA support"
410 depends on PPC64
411 default y if SMP && PPC_PSERIES
412
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700413config NODES_SHIFT
414 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000415 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700416 default "4"
417 depends on NEED_MULTIPLE_NODES
418
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000419config ARCH_SELECT_MEMORY_MODEL
420 def_bool y
421 depends on PPC64
422
423config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000424 def_bool y
425 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000426
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000427config ARCH_SPARSEMEM_ENABLE
428 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000429 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700430 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100431
432config ARCH_SPARSEMEM_DEFAULT
433 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100434 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000435
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100436config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000437 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100438
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700439source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000440
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800441config ARCH_MEMORY_PROBE
442 def_bool y
443 depends on MEMORY_HOTPLUG
444
Andy Whitcroft75167952006-10-21 10:24:14 -0700445# Some NUMA nodes have memory ranges that span
446# other nodes. Even though a pfn is valid and
447# between a node's start and end pfns, it may not
448# reside on that node. See memmap_init_zone()
449# for details.
450config NODES_SPAN_OTHER_NODES
451 def_bool y
452 depends on NEED_MULTIPLE_NODES
453
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000454config PPC_HAS_HASH_64K
455 bool
456 depends on PPC64
457 default n
458
Yuri Tikhonove1240122009-01-29 01:40:44 +0000459config STDBINUTILS
460 bool "Using standard binutils settings"
461 depends on 44x
462 default y
463 help
464 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
465 Note, that kernel will be able to run only those applications,
466 which had been compiled using binutils later than 2.17.50.0.3 with
467 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
468 the older binutils, you can patch them with a trivial patch, which
469 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
470
Ilya Yanokca9153a2008-12-11 04:55:41 +0300471choice
472 prompt "Page size"
473 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100474 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300475 Select the kernel logical page size. Increasing the page size
476 will reduce software overhead at each page boundary, allow
477 hardware prefetch mechanisms to be more effective, and allow
478 larger dma transfers increasing IO efficiency and reducing
479 overhead. However the utilization of memory will increase.
480 For example, each cached file will using a multiple of the
481 page size to hold its contents and the difference between the
482 end of file and the end of page is wasted.
483
484 Some dedicated systems, such as software raid serving with
485 accelerated calculations, have shown significant increases.
486
487 If you configure a 64 bit kernel for 64k pages but the
488 processor does not support them, then the kernel will simulate
489 them with 4k pages, loading them on demand, but with the
490 reduced software overhead and larger internal fragmentation.
491 For the 32 bit kernel, a large page option will not be offered
492 unless it is supported by the configured processor.
493
494 If unsure, choose 4K_PAGES.
495
496config PPC_4K_PAGES
497 bool "4k page size"
498
499config PPC_16K_PAGES
500 bool "16k page size" if 44x
501
502config PPC_64K_PAGES
Benjamin Herrenschmidt2d27cfd2009-07-23 23:15:59 +0000503 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300504 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
505
Yuri Tikhonove1240122009-01-29 01:40:44 +0000506config PPC_256K_PAGES
507 bool "256k page size" if 44x
Hugh Dickinsadf213c2009-04-06 11:01:15 +0000508 depends on !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000509 help
510 Make the page size 256k.
511
512 As the ELF standard only requires alignment to support page
513 sizes up to 64k, you will need to compile all of your user
514 space applications with a non-standard binutils settings
515 (see the STDBINUTILS description for details).
516
517 Say N unless you know what you are doing.
518
Ilya Yanokca9153a2008-12-11 04:55:41 +0300519endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100520
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000521config FORCE_MAX_ZONEORDER
522 int "Maximum zone order"
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000523 range 9 64 if PPC64 && PPC_64K_PAGES
524 default "9" if PPC64 && PPC_64K_PAGES
525 range 13 64 if PPC64 && !PPC_64K_PAGES
526 default "13" if PPC64 && !PPC_64K_PAGES
527 range 9 64 if PPC32 && PPC_16K_PAGES
528 default "9" if PPC32 && PPC_16K_PAGES
529 range 7 64 if PPC32 && PPC_64K_PAGES
530 default "7" if PPC32 && PPC_64K_PAGES
531 range 5 64 if PPC32 && PPC_256K_PAGES
532 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000533 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000534 default "11"
535 help
536 The kernel memory allocator divides physically contiguous memory
537 blocks into "zones", where each zone is a power of two number of
538 pages. This option selects the largest power of two that the kernel
539 keeps in the memory allocator. If you need to allocate very large
540 blocks of physically contiguous memory, then you may need to
541 increase this value.
542
543 This config option is actually maximum order plus one. For example,
544 a value of 11 means that the largest free memory block is 2^10 pages.
545
546 The page size is not necessarily 4KB. For example, on 64-bit
547 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
548 this in mind when choosing a value for this option.
549
Paul Mackerrasfa282372008-01-24 08:35:13 +1100550config PPC_SUBPAGE_PROT
551 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300552 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100553 help
554 This option adds support for a system call to allow user programs
555 to set access permissions (read/write, readonly, or no access)
556 on the 4k subpages of each 64k page.
557
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000558config SCHED_SMT
559 bool "SMT (Hyperthreading) scheduler support"
560 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000561 help
562 SMT scheduler support improves the CPU scheduler's decision making
563 when dealing with POWER5 cpus at a cost of slightly increased
564 overhead in some places. If unsure say N here.
565
Michael Neulingb92a66a2012-09-10 00:35:26 +0000566config PPC_DENORMALISATION
567 bool "PowerPC denormalisation exception handling"
568 depends on PPC_BOOK3S_64
Anton Blanchard4e90a2a2013-07-31 16:31:26 +1000569 default "y" if PPC_POWERNV
Michael Neulingb92a66a2012-09-10 00:35:26 +0000570 ---help---
571 Add support for handling denormalisation of single precision
572 values. Useful for bare metal only. If unsure say Y here.
573
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000574config CMDLINE_BOOL
575 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000576
577config CMDLINE
578 string "Initial kernel command string"
579 depends on CMDLINE_BOOL
580 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
581 help
582 On some platforms, there is currently no way for the boot loader to
583 pass arguments to the kernel. For these platforms, you can supply
584 some command-line options at build time by entering them here. In
585 most cases you will need to specify the root device here.
586
Grant Likelyc356aa42008-07-09 09:41:52 -0600587config EXTRA_TARGETS
588 string "Additional default image types"
589 help
590 List additional targets to be built by the bootwrapper here (separated
591 by spaces). This is useful for targets that depend of device tree
592 files in the .dts directory.
593
594 Targets in this list will be build as part of the default build
595 target, or when the user does a 'make zImage' or a
596 'make zImage.initrd'.
597
598 If unsure, leave blank
599
Johannes Bergb28f5082008-01-15 23:17:00 -0500600config ARCH_WANTS_FREEZER_CONTROL
601 def_bool y
602 depends on ADB_PMU
603
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000604source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000605
606config SECCOMP
607 bool "Enable seccomp to safely compute untrusted bytecode"
608 depends on PROC_FS
609 default y
610 help
611 This kernel feature is useful for number crunching applications
612 that may need to compute untrusted bytecode during their
613 execution. By using pipes or other transports made available to
614 the process as file descriptors supporting the read/write
615 syscalls, it's possible to isolate those applications in
616 their own address space using seccomp. Once seccomp is
617 enabled via /proc/<pid>/seccomp, it cannot be disabled
618 and the task is only allowed to execute a few safe syscalls
619 defined by each seccomp mode.
620
621 If unsure, say Y. Only embedded should say N here.
622
623endmenu
624
625config ISA_DMA_API
626 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000627 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000628
629menu "Bus options"
630
631config ISA
632 bool "Support for ISA-bus hardware"
Paul Bolle933ee712013-03-27 00:47:03 +0000633 depends on PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000634 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000635 help
636 Find out whether you have ISA slots on your motherboard. ISA is the
637 name of a bus system, i.e. the way the CPU talks to the other stuff
638 inside your box. If you have an Apple machine, say N here; if you
Paul Bolle933ee712013-03-27 00:47:03 +0000639 have an IBM RS/6000 or pSeries machine, say Y. If you have an
640 embedded board, consult your board documentation.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000641
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800642config ZONE_DMA
643 bool
644 default y
645
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800646config NEED_DMA_MAP_STATE
647 def_bool (PPC64 || NOT_COHERENT_CACHE)
648
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700649config NEED_SG_DMA_LENGTH
650 def_bool y
651
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000652config GENERIC_ISA_DMA
653 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000654 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000655 default y
656
Paul Mackerras25635c72005-10-26 16:36:55 +1000657config PPC_INDIRECT_PCI
658 bool
659 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600660 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000661 default n
662
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000663config EISA
664 bool
665
666config SBUS
667 bool
668
Kumar Gala08264cb2006-01-10 21:43:56 -0600669config FSL_SOC
670 bool
671
Roy Zang55c44992007-07-10 18:44:34 +0800672config FSL_PCI
673 bool
674 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600675 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800676
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400677config FSL_PMC
678 bool
679 default y
680 depends on SUSPEND && (PPC_85xx || PPC_86xx)
681 help
682 Freescale MPC85xx/MPC86xx power management controller support
683 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
684
Victor Gallardod164f6d2010-10-08 10:25:27 +0000685config PPC4xx_CPM
686 bool
687 default y
688 depends on SUSPEND && (44x || 40x)
689 help
690 PPC4xx Clock Power Management (CPM) support (suspend/resume).
691 It also enables support for two different idle states (idle-wait
692 and idle-doze).
693
Stefan Roese2a706912008-03-26 22:39:50 +1100694config 4xx_SOC
695 bool
696
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400697config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800698 bool "Freescale Local Bus support"
699 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400700 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800701 Enables reporting of errors from the Freescale local bus
702 controller. Also contains some common code used by
703 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400704
Prabhakar Kushwahaa20cbde2011-12-27 17:39:13 +0530705config FSL_IFC
706 bool
707 depends on FSL_SOC
708
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400709config FSL_GTM
710 bool
711 depends on PPC_83xx || QUICC_ENGINE || CPM2
712 help
713 Freescale General-purpose Timers support
714
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000715# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
716config MCA
717 bool
718
John Rigbyb5005632008-06-26 11:07:56 -0600719# Platforms that what PCI turned unconditionally just do select PCI
720# in their config node. Platforms that want to choose at config
721# time should select PPC_PCI_CHOICE
722config PPC_PCI_CHOICE
723 bool
724
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000725config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600726 bool "PCI support" if PPC_PCI_CHOICE
727 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000728 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000729 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000730 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200731 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000732 help
733 Find out whether your system includes a PCI bus. PCI is the name of
734 a bus system, i.e. the way the CPU talks to the other stuff inside
735 your box. If you say Y here, the kernel will include drivers and
736 infrastructure code to support PCI bus devices.
737
738config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600739 def_bool PCI
740
741config PCI_SYSCALL
742 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000743
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000744config PCI_QSPAN
745 bool "QSpan PCI"
746 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000747 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000748 help
749 Say Y here if you have a system based on a Motorola 8xx-series
750 embedded processor with a QSPAN PCI interface, otherwise say N.
751
752config PCI_8260
753 bool
754 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000755 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000756 default y
757
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500758source "drivers/pci/pcie/Kconfig"
759
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000760source "drivers/pci/Kconfig"
761
762source "drivers/pcmcia/Kconfig"
763
764source "drivers/pci/hotplug/Kconfig"
765
Zhang Weif1f389d2008-04-18 13:33:39 -0700766config HAS_RAPIDIO
767 bool
768 default n
769
770config RAPIDIO
771 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700772 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700773 help
774 If you say Y here, the kernel will include drivers and
775 infrastructure code to support RapidIO interconnect devices.
776
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700777config FSL_RIO
778 bool "Freescale Embedded SRIO Controller support"
779 depends on RAPIDIO && HAS_RAPIDIO
780 default "n"
781 ---help---
782 Include support for RapidIO controller on Freescale embedded
783 processors (MPC8548, MPC8641, etc).
784
Zhang Weif1f389d2008-04-18 13:33:39 -0700785source "drivers/rapidio/Kconfig"
786
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000787endmenu
788
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000789config NONSTATIC_KERNEL
790 bool
791 default n
792
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000793menu "Advanced setup"
794 depends on PPC32
795
796config ADVANCED_OPTIONS
797 bool "Prompt for advanced kernel configuration options"
798 help
799 This option will enable prompting for a variety of advanced kernel
800 configuration options. These options can cause the kernel to not
801 work if they are set incorrectly, but can be used to optimize certain
802 aspects of kernel memory management.
803
804 Unless you know what you are doing, say N here.
805
806comment "Default settings for advanced configuration options are used"
807 depends on !ADVANCED_OPTIONS
808
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000809config LOWMEM_SIZE_BOOL
810 bool "Set maximum low memory"
811 depends on ADVANCED_OPTIONS
812 help
813 This option allows you to set the maximum amount of memory which
814 will be used as "low memory", that is, memory which the kernel can
815 access directly, without having to set up a kernel virtual mapping.
816 This can be useful in optimizing the layout of kernel virtual
817 memory.
818
819 Say N here unless you know what you are doing.
820
821config LOWMEM_SIZE
822 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
823 default "0x30000000"
824
Trent Piepho96051462008-12-08 19:34:58 -0800825config LOWMEM_CAM_NUM_BOOL
826 bool "Set number of CAMs to use to map low memory"
827 depends on ADVANCED_OPTIONS && FSL_BOOKE
828 help
829 This option allows you to set the maximum number of CAM slots that
830 will be used to map low memory. There are a limited number of slots
831 available and even more limited number that will fit in the L1 MMU.
832 However, using more entries will allow mapping more low memory. This
833 can be useful in optimizing the layout of kernel virtual memory.
834
835 Say N here unless you know what you are doing.
836
837config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400838 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800839 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
840 default 3
841
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000842config DYNAMIC_MEMSTART
Kees Cook642e56f2013-01-16 18:53:25 -0800843 bool "Enable page aligned dynamic load address for kernel"
844 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000845 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000846 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000847 This option enables the kernel to be loaded at any page aligned
848 physical address. The kernel creates a mapping from KERNELBASE to
849 the address where the kernel is loaded. The page size here implies
850 the TLB page size of the mapping for kernel on the particular platform.
851 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000852
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000853 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
854 kernel image, where the only restriction is the page aligned kernel
855 load address. When this option is enabled, the compile time physical
856 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000857
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000858 This option is overridden by CONFIG_RELOCATABLE
859
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000860config RELOCATABLE
Kees Cook642e56f2013-01-16 18:53:25 -0800861 bool "Build a relocatable kernel"
862 depends on ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000863 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000864 help
865 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000866 location the kernel is loaded at, without any alignment restrictions.
867 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000868
869 One use is for the kexec on panic case where the recovery kernel
870 must live at a different physical address than the primary
871 kernel.
872
873 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
874 it has been loaded at and the compile time physical addresses
875 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
876 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000877 load address of the kernel (eg. u-boot/mkimage).
878
879config RELOCATABLE_PPC32
880 def_bool y
881 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000882
883config PAGE_OFFSET_BOOL
884 bool "Set custom page offset address"
885 depends on ADVANCED_OPTIONS
886 help
887 This option allows you to set the kernel virtual address at which
888 the kernel will map low memory. This can be useful in optimizing
889 the virtual memory layout of the system.
890
891 Say N here unless you know what you are doing.
892
893config PAGE_OFFSET
894 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
895 default "0xc0000000"
896
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000897config KERNEL_START_BOOL
898 bool "Set custom kernel base address"
899 depends on ADVANCED_OPTIONS
900 help
901 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000902 the kernel will be loaded. Normally this should match PAGE_OFFSET
903 however there are times (like kdump) that one might not want them
904 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000905
906 Say N here unless you know what you are doing.
907
908config KERNEL_START
909 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000910 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000911 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000912 default "0xc0000000"
913
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000914config PHYSICAL_START_BOOL
915 bool "Set physical address where the kernel is loaded"
916 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
917 help
918 This gives the physical address where the kernel is loaded.
919
920 Say N here unless you know what you are doing.
921
922config PHYSICAL_START
923 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000924 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000925 default "0x00000000"
926
927config PHYSICAL_ALIGN
928 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800929 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000930 help
931 This value puts the alignment restrictions on physical address
932 where kernel is loaded and run from. Kernel is compiled for an
933 address which meets above alignment restriction.
934
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000935config TASK_SIZE_BOOL
936 bool "Set custom user task size"
937 depends on ADVANCED_OPTIONS
938 help
939 This option allows you to set the amount of virtual address space
940 allocated to user tasks. This can be useful in optimizing the
941 virtual memory layout of the system.
942
943 Say N here unless you know what you are doing.
944
945config TASK_SIZE
946 hex "Size of user task space" if TASK_SIZE_BOOL
Paul Bolle933ee712013-03-27 00:47:03 +0000947 default "0x80000000" if PPC_8xx
Kumar Gala4d9e55102007-10-11 13:40:21 -0500948 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000949
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000950config CONSISTENT_SIZE_BOOL
951 bool "Set custom consistent memory pool size"
952 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
953 help
954 This option allows you to set the size of the
955 consistent memory pool. This pool of virtual memory
956 is used to make consistent memory allocations.
957
958config CONSISTENT_SIZE
959 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
960 default "0x00200000" if NOT_COHERENT_CACHE
961
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000962config PIN_TLB
963 bool "Pinned Kernel TLBs (860 ONLY)"
964 depends on ADVANCED_OPTIONS && 8xx
965endmenu
966
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000967if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000968config RELOCATABLE
969 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000970 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000971 help
972 This builds a kernel image that is capable of running anywhere
973 in the RMA (real memory area) at any 16k-aligned base address.
974 The kernel is linked as a position-independent executable (PIE)
975 and contains dynamic relocations which are processed early
976 in the bootup process.
977
978 One use is for the kexec on panic case where the recovery kernel
979 must live at a different physical address than the primary
980 kernel.
981
Paul Mackerrasbdbc29c2013-08-27 16:07:49 +1000982# This value must have zeroes in the bottom 60 bits otherwise lots will break
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000983config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000984 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000985 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000986config KERNEL_START
987 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000988 default "0xc000000000000000"
989config PHYSICAL_START
990 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000991 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000992endif
993
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000994source "net/Kconfig"
995
996source "drivers/Kconfig"
997
998source "fs/Kconfig"
999
Li Yang98658532006-10-03 23:10:46 -05001000source "arch/powerpc/sysdev/qe_lib/Kconfig"
1001
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001002source "lib/Kconfig"
1003
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001004source "arch/powerpc/Kconfig.debug"
1005
1006source "security/Kconfig"
1007
1008config KEYS_COMPAT
1009 bool
1010 depends on COMPAT && KEYS
1011 default y
1012
1013source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001014
1015config PPC_CLOCK
1016 bool
1017 default n
David Brownell9483a572008-07-23 21:26:48 -07001018 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001019
1020config PPC_LIB_RHEAP
1021 bool
1022
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001023source "arch/powerpc/kvm/Kconfig"