blob: feab3bad6d0f265ca51c5b88c50f073d20f29e93 [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
Tony Breedsaa3be5f2007-09-21 13:26:02 +100030config GENERIC_CMOS_UPDATE
31 def_bool y
32
Tony Breeds4a4cfe32007-09-22 07:35:52 +100033config GENERIC_TIME_VSYSCALL
34 def_bool y
35
Tony Breedsd831d0b2007-09-21 13:26:03 +100036config GENERIC_CLOCKEVENTS
37 def_bool y
38
Tejun Heoc2a7e812009-08-14 15:00:53 +090039config HAVE_SETUP_PER_CPU_AREA
Tejun Heoe74e3962009-03-30 19:07:44 +090040 def_bool PPC64
41
Tejun Heoc2a7e812009-08-14 15:00:53 +090042config NEED_PER_CPU_EMBED_FIRST_CHUNK
travis@sgi.comb32ef632008-01-30 13:32:51 +010043 def_bool PPC64
44
Michael Ellerman551b81f2009-10-13 19:44:44 +000045config NR_IRQS
46 int "Number of virtual interrupt numbers"
Anton Blanchard859aefc2010-01-31 01:14:03 +000047 range 32 32768
Michael Ellerman551b81f2009-10-13 19:44:44 +000048 default "512"
49 help
50 This defines the number of virtual interrupt numbers the kernel
51 can manage. Virtual interrupt numbers are what you see in
52 /proc/interrupts. If you configure your system to have too few,
53 drivers will fail to load or worse - handle with care.
54
Christoph Hellwigfd3e0bb2008-04-17 14:35:00 +100055config STACKTRACE_SUPPORT
56 bool
57 default y
58
Arnd Bergmann01f4b8b2008-07-11 00:08:18 +100059config HAVE_LATENCYTOP_SUPPORT
60 def_bool y
61
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100062config TRACE_IRQFLAGS_SUPPORT
63 bool
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100064 default y
65
66config LOCKDEP_SUPPORT
67 bool
68 default y
69
Paul Mackerras14cf11a2005-09-26 16:04:21 +100070config RWSEM_GENERIC_SPINLOCK
71 bool
72
73config RWSEM_XCHGADD_ALGORITHM
74 bool
75 default y
76
Nick Piggin95c354f2008-01-30 13:31:20 +010077config GENERIC_LOCKBREAK
78 bool
79 default y
80 depends on SMP && PREEMPT
81
David Howellsf0d1b0b2006-12-08 02:37:49 -080082config ARCH_HAS_ILOG2_U32
83 bool
David Howellsef55d532006-12-08 02:37:53 -080084 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080085
86config ARCH_HAS_ILOG2_U64
87 bool
David Howellsef55d532006-12-08 02:37:53 -080088 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080089
Deepthi Dharwar771dae82011-11-30 02:46:31 +000090config ARCH_HAS_CPU_IDLE_WAIT
91 bool
92 default y
93
Akinobu Mitae779b2f2006-03-26 01:39:33 -080094config GENERIC_HWEIGHT
95 bool
96 default y
97
Anton Vorontsovb7ce3412008-04-11 23:06:36 +100098config GENERIC_GPIO
99 bool
100 help
101 Generic GPIO API support
102
Stephen Rothwellf057eac2007-07-15 23:40:05 -0700103config ARCH_NO_VIRT_TO_BUS
104 def_bool PPC64
105
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000106config PPC
107 bool
108 default y
Stephen Rothwell10f85f42010-06-29 12:43:34 +1000109 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -0800110 select OF_EARLY_FLATTREE
Steven Rostedt2b79d692009-01-06 18:49:17 +0000111 select HAVE_FTRACE_MCOUNT_RECORD
112 select HAVE_DYNAMIC_FTRACE
Steven Rostedt606576c2008-10-06 19:06:12 -0400113 select HAVE_FUNCTION_TRACER
Steven Rostedt60ce8f72009-02-11 20:06:43 -0500114 select HAVE_FUNCTION_GRAPH_TRACER
Michael Buesch7444a722008-07-25 01:46:11 -0700115 select ARCH_WANT_OPTIONAL_GPIOLIB
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100116 select HAVE_IDE
Benjamin Herrenschmidta1f242f2008-07-23 21:27:08 -0700117 select HAVE_IOREMAP_PROT
Johannes Berg58340a02008-07-25 01:45:33 -0700118 select HAVE_EFFICIENT_UNALIGNED_ACCESS
Mathieu Desnoyers3f550092008-02-02 15:10:35 -0500119 select HAVE_KPROBES
Jason Wessel17ce4522008-07-23 11:30:15 -0500120 select HAVE_ARCH_KGDB
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -0800121 select HAVE_KRETPROBES
Roland McGrathdec2b0d2008-07-27 16:53:20 +1000122 select HAVE_ARCH_TRACEHOOK
Yinghai Lu95f72d12010-07-12 14:36:09 +1000123 select HAVE_MEMBLOCK
Tejun Heo1d7cfe12011-12-08 10:22:08 -0800124 select HAVE_MEMBLOCK_NODE_MAP
FUJITA Tomonori46bab4e2009-08-04 19:08:26 +0000125 select HAVE_DMA_ATTRS
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000126 select HAVE_DMA_API_DEBUG
Jens Axboeb7d7a242008-06-26 11:22:13 +0200127 select USE_GENERIC_SMP_HELPERS if SMP
Steven Rostedt4e491d12008-05-14 23:49:44 -0400128 select HAVE_OPROFILE
Benjamin Herrenschmidtee6a0932009-01-14 14:14:00 +0100129 select HAVE_SYSCALL_WRAPPERS if PPC64
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000130 select GENERIC_ATOMIC64 if PPC32
Peter Zijlstrae360adb2010-10-14 14:01:34 +0800131 select HAVE_IRQ_WORK
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200132 select HAVE_PERF_EVENTS
Mahesh Salgaonkar359e4282010-04-07 18:10:20 +1000133 select HAVE_REGS_AND_STACK_ACCESS_API
K.Prasad5aae8a52010-06-15 11:35:19 +0530134 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
Thomas Gleixner26043622011-01-19 20:39:39 +0100135 select HAVE_GENERIC_HARDIRQS
Grant Likelyad5b7f132012-01-30 08:02:19 +0000136 select SPARSE_IRQ
Thomas Gleixner26043622011-01-19 20:39:39 +0100137 select IRQ_PER_CPU
Grant Likelycc79ca62012-02-16 01:37:49 -0700138 select IRQ_DOMAIN
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100139 select GENERIC_IRQ_SHOW
140 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000141 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700142 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000143 select HAVE_SYSCALL_TRACEPOINTS
David S. Miller368940d2011-07-21 23:26:13 -0700144 select HAVE_BPF_JIT if (PPC64 && NET)
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000145 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800146 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000147
148config EARLY_PRINTK
149 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100150 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000151
152config COMPAT
153 bool
154 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800155 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400156 select ARCH_WANT_OLD_COMPAT_IPC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000157
158config SYSVIPC_COMPAT
159 bool
160 depends on COMPAT && SYSVIPC
161 default y
162
163# All PPC32s use generic nvram driver through ppc_md
164config GENERIC_NVRAM
165 bool
166 default y if PPC32
167
Ingo Molnarae1e9132008-11-11 09:05:16 +0100168config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000169 bool
170 default y
171
172config ARCH_MAY_HAVE_PC_FDC
173 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100174 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000175
Kumar Gala08264cb2006-01-10 21:43:56 -0600176config PPC_OF
177 def_bool y
178
179config PPC_UDBG_16550
180 bool
181 default n
182
Kumar Gala08264cb2006-01-10 21:43:56 -0600183config GENERIC_TBSYNC
184 bool
185 default y if PPC32 && SMP
186 default n
187
Al Viroe65e1fc2006-09-12 03:04:40 -0400188config AUDIT_ARCH
189 bool
190 default y
191
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800192config GENERIC_BUG
193 bool
194 default y
195 depends on BUG
196
Johannes Bergb3028872007-03-20 05:18:02 +1100197config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500198 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100199 bool
200
David Gibson6c5b59b2011-04-14 18:29:16 +0000201config EPAPR_BOOT
202 bool
203 help
204 Used to allow a board to specify it wants an ePAPR compliant wrapper.
205 default n
206
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600207config DEFAULT_UIMAGE
208 bool
209 help
210 Used to allow a board to specify it wants a uImage built by default
211 default n
212
Scott Woodb09c1642008-01-17 16:31:40 -0600213config REDBOOT
214 bool
215
Johannes Berg801e4062007-12-08 02:12:39 +0100216config ARCH_HIBERNATION_POSSIBLE
217 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000218 default y
219
Johannes Bergf4cb5702007-12-08 02:14:00 +0100220config ARCH_SUSPEND_POSSIBLE
221 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400222 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Kumar Galae5462d12011-04-08 04:20:54 -0500223 (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100224
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100225config PPC_DCR_NATIVE
226 bool
227 default n
228
229config PPC_DCR_MMIO
230 bool
231 default n
232
233config PPC_DCR
234 bool
235 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
236 default y
237
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100238config PPC_OF_PLATFORM_PCI
239 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100240 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100241 depends on PPC64 # not supported on 32 bits yet
242 default n
243
Akinobu Mita6a11f752009-03-31 15:23:17 -0700244config ARCH_SUPPORTS_DEBUG_PAGEALLOC
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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000274source "init/Kconfig"
275
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700276source "kernel/Kconfig.freezer"
277
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100278source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500279source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000280
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000281menu "Kernel options"
282
283config HIGHMEM
284 bool "High memory support"
285 depends on PPC32
286
Tony Breeds1ad74992007-09-21 13:26:03 +1000287source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000288source kernel/Kconfig.hz
289source kernel/Kconfig.preempt
290source "fs/Kconfig.binfmt"
291
Mel Gormanba72cb82007-11-28 16:21:13 -0800292config HUGETLB_PAGE_SIZE_VARIABLE
293 bool
294 depends on HUGETLB_PAGE
295 default y
296
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000297config MATH_EMULATION
298 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600299 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000300 ---help---
301 Some PowerPC chips designed for embedded applications do not have
302 a floating-point unit and therefore do not implement the
303 floating-point instructions in the PowerPC instruction set. If you
304 say Y here, the kernel will include code to emulate a floating-point
305 unit, which will allow programs that use floating-point
306 instructions to run.
307
Scott Wood5dd57a12007-09-18 15:29:35 -0500308config 8XX_MINIMAL_FPEMU
309 bool "Minimal math emulation for 8xx"
310 depends on 8xx && !MATH_EMULATION
311 help
312 Older arch/ppc kernels still emulated a few floating point
313 instructions such as load and store, even when full math
314 emulation is disabled. Say "Y" here if you want to preserve
315 this behavior.
316
317 It is recommended that you build a soft-float userspace instead.
318
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800319config IOMMU_HELPER
320 def_bool PPC64
321
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000322config SWIOTLB
323 bool "SWIOTLB support"
324 default n
325 select IOMMU_HELPER
326 ---help---
327 Support for IO bounce buffering for systems without an IOMMU.
328 This allows us to DMA to the full physical address space on
329 platforms where the size of a physical address is larger
330 than the bus address. Not all platforms support this.
331
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000332config HOTPLUG_CPU
333 bool "Support for enabling/disabling CPUs"
Benjamin Herrenschmidt344eb012011-09-19 17:44:54 +0000334 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000335 ---help---
336 Say Y here to be able to disable and re-enable individual
337 CPUs at runtime on SMP machines.
338
339 Say N if you are unsure.
340
Nathan Fontenot12633e82009-11-25 17:23:25 +0000341config ARCH_CPU_PROBE_RELEASE
342 def_bool y
343 depends on HOTPLUG_CPU
344
Yasunori Gotocc576372006-06-29 02:24:27 -0700345config ARCH_ENABLE_MEMORY_HOTPLUG
346 def_bool y
347
Badari Pulavartya99824f2008-02-05 00:10:18 -0800348config ARCH_HAS_WALK_MEMORY
349 def_bool y
350
Badari Pulavarty14824712008-02-05 00:10:17 -0800351config ARCH_ENABLE_MEMORY_HOTREMOVE
352 def_bool y
353
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000354config KEXEC
355 bool "kexec system call (EXPERIMENTAL)"
Suzuki Poulosebbc24a22011-11-14 16:43:50 +0000356 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000357 help
358 kexec is a system call that implements the ability to shutdown your
359 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400360 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000361 you can start any kernel with it, not just Linux.
362
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400363 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000364
365 It is an ongoing process to be certain the hardware in a machine
366 is properly shutdown, so do not be surprised if this code does not
367 initially work for you. It may help to enable device hotplugging
368 support. As of this writing the exact hardware interface is
369 strongly in flux, so no good recommendation can be made.
370
Haren Mynenie8625d462006-01-14 13:48:25 -0800371config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000372 bool "Build a kdump crash kernel"
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000373 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
374 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000375 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800376 help
377 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000378 The same kernel binary can be used as production kernel and dump
379 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800380
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000381config FA_DUMP
382 bool "Firmware-assisted dump"
383 depends on PPC64 && PPC_RTAS && CRASH_DUMP
Manish Ahuja242f2712008-03-22 10:50:50 +1100384 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000385 A robust mechanism to get reliable kernel crash dump with
386 assistance from firmware. This approach does not use kexec,
387 instead firmware assists in booting the kdump kernel
388 while preserving memory contents. Firmware-assisted dump
389 is meant to be a kdump replacement offering robustness and
390 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100391
392 If unsure, say "N"
393
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000394config IRQ_ALL_CPUS
395 bool "Distribute interrupts on all CPUs by default"
396 depends on SMP && !MV64360
397 help
398 This option gives the kernel permission to distribute IRQs across
399 multiple CPUs. Saying N here will route all IRQs to the first
400 CPU. Generally saying Y is safe, although some problems have been
401 reported with SMP Power Macintoshes with this option enabled.
402
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700403config NUMA
404 bool "NUMA support"
405 depends on PPC64
406 default y if SMP && PPC_PSERIES
407
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700408config NODES_SHIFT
409 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000410 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700411 default "4"
412 depends on NEED_MULTIPLE_NODES
413
Anton Blanchardea55bf22009-09-21 19:56:43 +0000414config MAX_ACTIVE_REGIONS
415 int
416 default "256" if PPC64
417 default "32"
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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000566config CMDLINE_BOOL
567 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000568
569config CMDLINE
570 string "Initial kernel command string"
571 depends on CMDLINE_BOOL
572 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
573 help
574 On some platforms, there is currently no way for the boot loader to
575 pass arguments to the kernel. For these platforms, you can supply
576 some command-line options at build time by entering them here. In
577 most cases you will need to specify the root device here.
578
Grant Likelyc356aa42008-07-09 09:41:52 -0600579config EXTRA_TARGETS
580 string "Additional default image types"
581 help
582 List additional targets to be built by the bootwrapper here (separated
583 by spaces). This is useful for targets that depend of device tree
584 files in the .dts directory.
585
586 Targets in this list will be build as part of the default build
587 target, or when the user does a 'make zImage' or a
588 'make zImage.initrd'.
589
590 If unsure, leave blank
591
Johannes Bergb28f5082008-01-15 23:17:00 -0500592config ARCH_WANTS_FREEZER_CONTROL
593 def_bool y
594 depends on ADB_PMU
595
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000596source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000597
598config SECCOMP
599 bool "Enable seccomp to safely compute untrusted bytecode"
600 depends on PROC_FS
601 default y
602 help
603 This kernel feature is useful for number crunching applications
604 that may need to compute untrusted bytecode during their
605 execution. By using pipes or other transports made available to
606 the process as file descriptors supporting the read/write
607 syscalls, it's possible to isolate those applications in
608 their own address space using seccomp. Once seccomp is
609 enabled via /proc/<pid>/seccomp, it cannot be disabled
610 and the task is only allowed to execute a few safe syscalls
611 defined by each seccomp mode.
612
613 If unsure, say Y. Only embedded should say N here.
614
615endmenu
616
617config ISA_DMA_API
618 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000619 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000620
621menu "Bus options"
622
623config ISA
624 bool "Support for ISA-bus hardware"
625 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000626 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000627 help
628 Find out whether you have ISA slots on your motherboard. ISA is the
629 name of a bus system, i.e. the way the CPU talks to the other stuff
630 inside your box. If you have an Apple machine, say N here; if you
631 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
632 you have an embedded board, consult your board documentation.
633
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800634config ZONE_DMA
635 bool
636 default y
637
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800638config NEED_DMA_MAP_STATE
639 def_bool (PPC64 || NOT_COHERENT_CACHE)
640
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700641config NEED_SG_DMA_LENGTH
642 def_bool y
643
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000644config GENERIC_ISA_DMA
645 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000646 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000647 default y
648
Paul Mackerras25635c72005-10-26 16:36:55 +1000649config PPC_INDIRECT_PCI
650 bool
651 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600652 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000653 default n
654
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000655config EISA
656 bool
657
658config SBUS
659 bool
660
Kumar Gala08264cb2006-01-10 21:43:56 -0600661config FSL_SOC
662 bool
holt@sgi.comb489da82011-08-16 17:32:24 +0000663 select HAVE_CAN_FLEXCAN if NET && CAN
664 select PPC_CLOCK if CAN_FLEXCAN
Kumar Gala08264cb2006-01-10 21:43:56 -0600665
Roy Zang55c44992007-07-10 18:44:34 +0800666config FSL_PCI
667 bool
668 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600669 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800670
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400671config FSL_PMC
672 bool
673 default y
674 depends on SUSPEND && (PPC_85xx || PPC_86xx)
675 help
676 Freescale MPC85xx/MPC86xx power management controller support
677 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
678
Victor Gallardod164f6d2010-10-08 10:25:27 +0000679config PPC4xx_CPM
680 bool
681 default y
682 depends on SUSPEND && (44x || 40x)
683 help
684 PPC4xx Clock Power Management (CPM) support (suspend/resume).
685 It also enables support for two different idle states (idle-wait
686 and idle-doze).
687
Stefan Roese2a706912008-03-26 22:39:50 +1100688config 4xx_SOC
689 bool
690
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400691config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800692 bool "Freescale Local Bus support"
693 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400694 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800695 Enables reporting of errors from the Freescale local bus
696 controller. Also contains some common code used by
697 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400698
Prabhakar Kushwahaa20cbde2011-12-27 17:39:13 +0530699config FSL_IFC
700 bool
701 depends on FSL_SOC
702
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400703config FSL_GTM
704 bool
705 depends on PPC_83xx || QUICC_ENGINE || CPM2
706 help
707 Freescale General-purpose Timers support
708
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000709# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
710config MCA
711 bool
712
John Rigbyb5005632008-06-26 11:07:56 -0600713# Platforms that what PCI turned unconditionally just do select PCI
714# in their config node. Platforms that want to choose at config
715# time should select PPC_PCI_CHOICE
716config PPC_PCI_CHOICE
717 bool
718
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000719config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600720 bool "PCI support" if PPC_PCI_CHOICE
721 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000722 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000723 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000724 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000725 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200726 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000727 help
728 Find out whether your system includes a PCI bus. PCI is the name of
729 a bus system, i.e. the way the CPU talks to the other stuff inside
730 your box. If you say Y here, the kernel will include drivers and
731 infrastructure code to support PCI bus devices.
732
733config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600734 def_bool PCI
735
736config PCI_SYSCALL
737 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000738
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000739config PCI_QSPAN
740 bool "QSpan PCI"
741 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000742 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000743 help
744 Say Y here if you have a system based on a Motorola 8xx-series
745 embedded processor with a QSPAN PCI interface, otherwise say N.
746
747config PCI_8260
748 bool
749 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000750 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000751 default y
752
753config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700754 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500755 depends on PCI_8260 && !8272
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
843 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000844 depends on EXPERIMENTAL && 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
861 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000862 depends on EXPERIMENTAL && 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
Kumar Gala4d9e55102007-10-11 13:40:21 -0500947 default "0x80000000" if PPC_PREP || PPC_8xx
948 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
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000982config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000983 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000984 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000985config KERNEL_START
986 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000987 default "0xc000000000000000"
988config PHYSICAL_START
989 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000990 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000991endif
992
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000993source "net/Kconfig"
994
995source "drivers/Kconfig"
996
997source "fs/Kconfig"
998
Li Yang98658532006-10-03 23:10:46 -0500999source "arch/powerpc/sysdev/qe_lib/Kconfig"
1000
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001001source "lib/Kconfig"
1002
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001003source "arch/powerpc/Kconfig.debug"
1004
1005source "security/Kconfig"
1006
1007config KEYS_COMPAT
1008 bool
1009 depends on COMPAT && KEYS
1010 default y
1011
1012source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001013
1014config PPC_CLOCK
1015 bool
1016 default n
David Brownell9483a572008-07-23 21:26:48 -07001017 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001018
1019config PPC_LIB_RHEAP
1020 bool
1021
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001022source "arch/powerpc/kvm/Kconfig"