blob: 1919634a9b32c261c6f989f7c87b7403a5c6c57e [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
136 select HAVE_SPARSE_IRQ
137 select IRQ_PER_CPU
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100138 select GENERIC_IRQ_SHOW
139 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000140 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700141 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000142 select HAVE_SYSCALL_TRACEPOINTS
David S. Miller368940d2011-07-21 23:26:13 -0700143 select HAVE_BPF_JIT if (PPC64 && NET)
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000144 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800145 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000146
147config EARLY_PRINTK
148 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100149 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000150
151config COMPAT
152 bool
153 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800154 select COMPAT_BINFMT_ELF
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000155
156config SYSVIPC_COMPAT
157 bool
158 depends on COMPAT && SYSVIPC
159 default y
160
161# All PPC32s use generic nvram driver through ppc_md
162config GENERIC_NVRAM
163 bool
164 default y if PPC32
165
Ingo Molnarae1e9132008-11-11 09:05:16 +0100166config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000167 bool
168 default y
169
170config ARCH_MAY_HAVE_PC_FDC
171 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100172 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000173
Kumar Gala08264cb2006-01-10 21:43:56 -0600174config PPC_OF
175 def_bool y
176
177config PPC_UDBG_16550
178 bool
179 default n
180
Kumar Gala08264cb2006-01-10 21:43:56 -0600181config GENERIC_TBSYNC
182 bool
183 default y if PPC32 && SMP
184 default n
185
Al Viroe65e1fc2006-09-12 03:04:40 -0400186config AUDIT_ARCH
187 bool
188 default y
189
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800190config GENERIC_BUG
191 bool
192 default y
193 depends on BUG
194
Johannes Bergb3028872007-03-20 05:18:02 +1100195config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500196 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100197 bool
198
David Gibson6c5b59b2011-04-14 18:29:16 +0000199config EPAPR_BOOT
200 bool
201 help
202 Used to allow a board to specify it wants an ePAPR compliant wrapper.
203 default n
204
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600205config DEFAULT_UIMAGE
206 bool
207 help
208 Used to allow a board to specify it wants a uImage built by default
209 default n
210
Scott Woodb09c1642008-01-17 16:31:40 -0600211config REDBOOT
212 bool
213
Johannes Berg801e4062007-12-08 02:12:39 +0100214config ARCH_HIBERNATION_POSSIBLE
215 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000216 default y
217
Johannes Bergf4cb5702007-12-08 02:14:00 +0100218config ARCH_SUSPEND_POSSIBLE
219 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400220 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Kumar Galae5462d12011-04-08 04:20:54 -0500221 (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100222
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100223config PPC_DCR_NATIVE
224 bool
225 default n
226
227config PPC_DCR_MMIO
228 bool
229 default n
230
231config PPC_DCR
232 bool
233 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
234 default y
235
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100236config PPC_OF_PLATFORM_PCI
237 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100238 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100239 depends on PPC64 # not supported on 32 bits yet
240 default n
241
Akinobu Mita6a11f752009-03-31 15:23:17 -0700242config ARCH_SUPPORTS_DEBUG_PAGEALLOC
243 def_bool y
244
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000245config PPC_ADV_DEBUG_REGS
246 bool
247 depends on 40x || BOOKE
248 default y
249
250config PPC_ADV_DEBUG_IACS
251 int
252 depends on PPC_ADV_DEBUG_REGS
253 default 4 if 44x
254 default 2
255
256config PPC_ADV_DEBUG_DACS
257 int
258 depends on PPC_ADV_DEBUG_REGS
259 default 2
260
261config PPC_ADV_DEBUG_DVCS
262 int
263 depends on PPC_ADV_DEBUG_REGS
264 default 2 if 44x
265 default 0
266
267config PPC_ADV_DEBUG_DAC_RANGE
268 bool
269 depends on PPC_ADV_DEBUG_REGS && 44x
270 default y
271
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000272source "init/Kconfig"
273
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700274source "kernel/Kconfig.freezer"
275
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100276source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500277source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000278
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000279menu "Kernel options"
280
281config HIGHMEM
282 bool "High memory support"
283 depends on PPC32
284
Tony Breeds1ad74992007-09-21 13:26:03 +1000285source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000286source kernel/Kconfig.hz
287source kernel/Kconfig.preempt
288source "fs/Kconfig.binfmt"
289
Mel Gormanba72cb82007-11-28 16:21:13 -0800290config HUGETLB_PAGE_SIZE_VARIABLE
291 bool
292 depends on HUGETLB_PAGE
293 default y
294
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000295config MATH_EMULATION
296 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600297 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000298 ---help---
299 Some PowerPC chips designed for embedded applications do not have
300 a floating-point unit and therefore do not implement the
301 floating-point instructions in the PowerPC instruction set. If you
302 say Y here, the kernel will include code to emulate a floating-point
303 unit, which will allow programs that use floating-point
304 instructions to run.
305
Scott Wood5dd57a12007-09-18 15:29:35 -0500306config 8XX_MINIMAL_FPEMU
307 bool "Minimal math emulation for 8xx"
308 depends on 8xx && !MATH_EMULATION
309 help
310 Older arch/ppc kernels still emulated a few floating point
311 instructions such as load and store, even when full math
312 emulation is disabled. Say "Y" here if you want to preserve
313 this behavior.
314
315 It is recommended that you build a soft-float userspace instead.
316
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800317config IOMMU_HELPER
318 def_bool PPC64
319
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000320config SWIOTLB
321 bool "SWIOTLB support"
322 default n
323 select IOMMU_HELPER
324 ---help---
325 Support for IO bounce buffering for systems without an IOMMU.
326 This allows us to DMA to the full physical address space on
327 platforms where the size of a physical address is larger
328 than the bus address. Not all platforms support this.
329
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000330config HOTPLUG_CPU
331 bool "Support for enabling/disabling CPUs"
Benjamin Herrenschmidt344eb012011-09-19 17:44:54 +0000332 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000333 ---help---
334 Say Y here to be able to disable and re-enable individual
335 CPUs at runtime on SMP machines.
336
337 Say N if you are unsure.
338
Nathan Fontenot12633e82009-11-25 17:23:25 +0000339config ARCH_CPU_PROBE_RELEASE
340 def_bool y
341 depends on HOTPLUG_CPU
342
Yasunori Gotocc576372006-06-29 02:24:27 -0700343config ARCH_ENABLE_MEMORY_HOTPLUG
344 def_bool y
345
Badari Pulavartya99824f2008-02-05 00:10:18 -0800346config ARCH_HAS_WALK_MEMORY
347 def_bool y
348
Badari Pulavarty14824712008-02-05 00:10:17 -0800349config ARCH_ENABLE_MEMORY_HOTREMOVE
350 def_bool y
351
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000352config KEXEC
353 bool "kexec system call (EXPERIMENTAL)"
Suzuki Poulosebbc24a22011-11-14 16:43:50 +0000354 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000355 help
356 kexec is a system call that implements the ability to shutdown your
357 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400358 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000359 you can start any kernel with it, not just Linux.
360
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400361 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000362
363 It is an ongoing process to be certain the hardware in a machine
364 is properly shutdown, so do not be surprised if this code does not
365 initially work for you. It may help to enable device hotplugging
366 support. As of this writing the exact hardware interface is
367 strongly in flux, so no good recommendation can be made.
368
Haren Mynenie8625d462006-01-14 13:48:25 -0800369config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000370 bool "Build a kdump crash kernel"
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000371 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
372 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000373 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800374 help
375 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000376 The same kernel binary can be used as production kernel and dump
377 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800378
Manish Ahuja242f2712008-03-22 10:50:50 +1100379config PHYP_DUMP
380 bool "Hypervisor-assisted dump (EXPERIMENTAL)"
381 depends on PPC_PSERIES && EXPERIMENTAL
382 help
383 Hypervisor-assisted dump is meant to be a kdump replacement
384 offering robustness and speed not possible without system
Matt LaPlante692105b2009-01-26 11:12:25 +0100385 hypervisor assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100386
387 If unsure, say "N"
388
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000389config IRQ_ALL_CPUS
390 bool "Distribute interrupts on all CPUs by default"
391 depends on SMP && !MV64360
392 help
393 This option gives the kernel permission to distribute IRQs across
394 multiple CPUs. Saying N here will route all IRQs to the first
395 CPU. Generally saying Y is safe, although some problems have been
396 reported with SMP Power Macintoshes with this option enabled.
397
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700398config NUMA
399 bool "NUMA support"
400 depends on PPC64
401 default y if SMP && PPC_PSERIES
402
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700403config NODES_SHIFT
404 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000405 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700406 default "4"
407 depends on NEED_MULTIPLE_NODES
408
Anton Blanchardea55bf22009-09-21 19:56:43 +0000409config MAX_ACTIVE_REGIONS
410 int
411 default "256" if PPC64
412 default "32"
413
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000414config ARCH_SELECT_MEMORY_MODEL
415 def_bool y
416 depends on PPC64
417
418config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000419 def_bool y
420 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000421
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000422config ARCH_SPARSEMEM_ENABLE
423 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000424 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700425 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100426
427config ARCH_SPARSEMEM_DEFAULT
428 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100429 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000430
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100431config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000432 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100433
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700434source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000435
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800436config ARCH_MEMORY_PROBE
437 def_bool y
438 depends on MEMORY_HOTPLUG
439
Andy Whitcroft75167952006-10-21 10:24:14 -0700440# Some NUMA nodes have memory ranges that span
441# other nodes. Even though a pfn is valid and
442# between a node's start and end pfns, it may not
443# reside on that node. See memmap_init_zone()
444# for details.
445config NODES_SPAN_OTHER_NODES
446 def_bool y
447 depends on NEED_MULTIPLE_NODES
448
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000449config PPC_HAS_HASH_64K
450 bool
451 depends on PPC64
452 default n
453
Yuri Tikhonove1240122009-01-29 01:40:44 +0000454config STDBINUTILS
455 bool "Using standard binutils settings"
456 depends on 44x
457 default y
458 help
459 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
460 Note, that kernel will be able to run only those applications,
461 which had been compiled using binutils later than 2.17.50.0.3 with
462 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
463 the older binutils, you can patch them with a trivial patch, which
464 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
465
Ilya Yanokca9153a2008-12-11 04:55:41 +0300466choice
467 prompt "Page size"
468 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100469 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300470 Select the kernel logical page size. Increasing the page size
471 will reduce software overhead at each page boundary, allow
472 hardware prefetch mechanisms to be more effective, and allow
473 larger dma transfers increasing IO efficiency and reducing
474 overhead. However the utilization of memory will increase.
475 For example, each cached file will using a multiple of the
476 page size to hold its contents and the difference between the
477 end of file and the end of page is wasted.
478
479 Some dedicated systems, such as software raid serving with
480 accelerated calculations, have shown significant increases.
481
482 If you configure a 64 bit kernel for 64k pages but the
483 processor does not support them, then the kernel will simulate
484 them with 4k pages, loading them on demand, but with the
485 reduced software overhead and larger internal fragmentation.
486 For the 32 bit kernel, a large page option will not be offered
487 unless it is supported by the configured processor.
488
489 If unsure, choose 4K_PAGES.
490
491config PPC_4K_PAGES
492 bool "4k page size"
493
494config PPC_16K_PAGES
495 bool "16k page size" if 44x
496
497config PPC_64K_PAGES
Benjamin Herrenschmidt2d27cfd2009-07-23 23:15:59 +0000498 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300499 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
500
Yuri Tikhonove1240122009-01-29 01:40:44 +0000501config PPC_256K_PAGES
502 bool "256k page size" if 44x
Hugh Dickinsadf213c2009-04-06 11:01:15 +0000503 depends on !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000504 help
505 Make the page size 256k.
506
507 As the ELF standard only requires alignment to support page
508 sizes up to 64k, you will need to compile all of your user
509 space applications with a non-standard binutils settings
510 (see the STDBINUTILS description for details).
511
512 Say N unless you know what you are doing.
513
Ilya Yanokca9153a2008-12-11 04:55:41 +0300514endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100515
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000516config FORCE_MAX_ZONEORDER
517 int "Maximum zone order"
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000518 range 9 64 if PPC64 && PPC_64K_PAGES
519 default "9" if PPC64 && PPC_64K_PAGES
520 range 13 64 if PPC64 && !PPC_64K_PAGES
521 default "13" if PPC64 && !PPC_64K_PAGES
522 range 9 64 if PPC32 && PPC_16K_PAGES
523 default "9" if PPC32 && PPC_16K_PAGES
524 range 7 64 if PPC32 && PPC_64K_PAGES
525 default "7" if PPC32 && PPC_64K_PAGES
526 range 5 64 if PPC32 && PPC_256K_PAGES
527 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000528 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000529 default "11"
530 help
531 The kernel memory allocator divides physically contiguous memory
532 blocks into "zones", where each zone is a power of two number of
533 pages. This option selects the largest power of two that the kernel
534 keeps in the memory allocator. If you need to allocate very large
535 blocks of physically contiguous memory, then you may need to
536 increase this value.
537
538 This config option is actually maximum order plus one. For example,
539 a value of 11 means that the largest free memory block is 2^10 pages.
540
541 The page size is not necessarily 4KB. For example, on 64-bit
542 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
543 this in mind when choosing a value for this option.
544
Paul Mackerrasfa282372008-01-24 08:35:13 +1100545config PPC_SUBPAGE_PROT
546 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300547 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100548 help
549 This option adds support for a system call to allow user programs
550 to set access permissions (read/write, readonly, or no access)
551 on the 4k subpages of each 64k page.
552
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000553config SCHED_SMT
554 bool "SMT (Hyperthreading) scheduler support"
555 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000556 help
557 SMT scheduler support improves the CPU scheduler's decision making
558 when dealing with POWER5 cpus at a cost of slightly increased
559 overhead in some places. If unsure say N here.
560
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000561config CMDLINE_BOOL
562 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000563
564config CMDLINE
565 string "Initial kernel command string"
566 depends on CMDLINE_BOOL
567 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
568 help
569 On some platforms, there is currently no way for the boot loader to
570 pass arguments to the kernel. For these platforms, you can supply
571 some command-line options at build time by entering them here. In
572 most cases you will need to specify the root device here.
573
Grant Likelyc356aa42008-07-09 09:41:52 -0600574config EXTRA_TARGETS
575 string "Additional default image types"
576 help
577 List additional targets to be built by the bootwrapper here (separated
578 by spaces). This is useful for targets that depend of device tree
579 files in the .dts directory.
580
581 Targets in this list will be build as part of the default build
582 target, or when the user does a 'make zImage' or a
583 'make zImage.initrd'.
584
585 If unsure, leave blank
586
Johannes Bergb28f5082008-01-15 23:17:00 -0500587config ARCH_WANTS_FREEZER_CONTROL
588 def_bool y
589 depends on ADB_PMU
590
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000591source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000592
593config SECCOMP
594 bool "Enable seccomp to safely compute untrusted bytecode"
595 depends on PROC_FS
596 default y
597 help
598 This kernel feature is useful for number crunching applications
599 that may need to compute untrusted bytecode during their
600 execution. By using pipes or other transports made available to
601 the process as file descriptors supporting the read/write
602 syscalls, it's possible to isolate those applications in
603 their own address space using seccomp. Once seccomp is
604 enabled via /proc/<pid>/seccomp, it cannot be disabled
605 and the task is only allowed to execute a few safe syscalls
606 defined by each seccomp mode.
607
608 If unsure, say Y. Only embedded should say N here.
609
610endmenu
611
612config ISA_DMA_API
613 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100614 default !PPC_ISERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000615
616menu "Bus options"
617
618config ISA
619 bool "Support for ISA-bus hardware"
620 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000621 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000622 help
623 Find out whether you have ISA slots on your motherboard. ISA is the
624 name of a bus system, i.e. the way the CPU talks to the other stuff
625 inside your box. If you have an Apple machine, say N here; if you
626 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
627 you have an embedded board, consult your board documentation.
628
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800629config ZONE_DMA
630 bool
631 default y
632
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800633config NEED_DMA_MAP_STATE
634 def_bool (PPC64 || NOT_COHERENT_CACHE)
635
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700636config NEED_SG_DMA_LENGTH
637 def_bool y
638
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000639config GENERIC_ISA_DMA
640 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000641 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000642 default y
643
Paul Mackerras25635c72005-10-26 16:36:55 +1000644config PPC_INDIRECT_PCI
645 bool
646 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600647 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000648 default n
649
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000650config EISA
651 bool
652
653config SBUS
654 bool
655
Kumar Gala08264cb2006-01-10 21:43:56 -0600656config FSL_SOC
657 bool
holt@sgi.comb489da82011-08-16 17:32:24 +0000658 select HAVE_CAN_FLEXCAN if NET && CAN
659 select PPC_CLOCK if CAN_FLEXCAN
Kumar Gala08264cb2006-01-10 21:43:56 -0600660
Roy Zang55c44992007-07-10 18:44:34 +0800661config FSL_PCI
662 bool
663 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600664 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800665
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400666config FSL_PMC
667 bool
668 default y
669 depends on SUSPEND && (PPC_85xx || PPC_86xx)
670 help
671 Freescale MPC85xx/MPC86xx power management controller support
672 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
673
Victor Gallardod164f6d2010-10-08 10:25:27 +0000674config PPC4xx_CPM
675 bool
676 default y
677 depends on SUSPEND && (44x || 40x)
678 help
679 PPC4xx Clock Power Management (CPM) support (suspend/resume).
680 It also enables support for two different idle states (idle-wait
681 and idle-doze).
682
Stefan Roese2a706912008-03-26 22:39:50 +1100683config 4xx_SOC
684 bool
685
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400686config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800687 bool "Freescale Local Bus support"
688 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400689 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800690 Enables reporting of errors from the Freescale local bus
691 controller. Also contains some common code used by
692 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400693
Prabhakar Kushwahaa20cbde2011-12-27 17:39:13 +0530694config FSL_IFC
695 bool
696 depends on FSL_SOC
697
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400698config FSL_GTM
699 bool
700 depends on PPC_83xx || QUICC_ENGINE || CPM2
701 help
702 Freescale General-purpose Timers support
703
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000704# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
705config MCA
706 bool
707
John Rigbyb5005632008-06-26 11:07:56 -0600708# Platforms that what PCI turned unconditionally just do select PCI
709# in their config node. Platforms that want to choose at config
710# time should select PPC_PCI_CHOICE
711config PPC_PCI_CHOICE
712 bool
713
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000714config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600715 bool "PCI support" if PPC_PCI_CHOICE
716 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000717 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000718 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000719 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000720 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200721 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000722 help
723 Find out whether your system includes a PCI bus. PCI is the name of
724 a bus system, i.e. the way the CPU talks to the other stuff inside
725 your box. If you say Y here, the kernel will include drivers and
726 infrastructure code to support PCI bus devices.
727
728config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600729 def_bool PCI
730
731config PCI_SYSCALL
732 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000733
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000734config PCI_QSPAN
735 bool "QSpan PCI"
736 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000737 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000738 help
739 Say Y here if you have a system based on a Motorola 8xx-series
740 embedded processor with a QSPAN PCI interface, otherwise say N.
741
742config PCI_8260
743 bool
744 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000745 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000746 default y
747
748config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700749 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500750 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000751 default y
752
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500753source "drivers/pci/pcie/Kconfig"
754
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000755source "drivers/pci/Kconfig"
756
757source "drivers/pcmcia/Kconfig"
758
759source "drivers/pci/hotplug/Kconfig"
760
Zhang Weif1f389d2008-04-18 13:33:39 -0700761config HAS_RAPIDIO
762 bool
763 default n
764
765config RAPIDIO
766 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700767 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700768 help
769 If you say Y here, the kernel will include drivers and
770 infrastructure code to support RapidIO interconnect devices.
771
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700772config FSL_RIO
773 bool "Freescale Embedded SRIO Controller support"
774 depends on RAPIDIO && HAS_RAPIDIO
775 default "n"
776 ---help---
777 Include support for RapidIO controller on Freescale embedded
778 processors (MPC8548, MPC8641, etc).
779
Zhang Weif1f389d2008-04-18 13:33:39 -0700780source "drivers/rapidio/Kconfig"
781
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000782endmenu
783
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000784config NONSTATIC_KERNEL
785 bool
786 default n
787
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000788menu "Advanced setup"
789 depends on PPC32
790
791config ADVANCED_OPTIONS
792 bool "Prompt for advanced kernel configuration options"
793 help
794 This option will enable prompting for a variety of advanced kernel
795 configuration options. These options can cause the kernel to not
796 work if they are set incorrectly, but can be used to optimize certain
797 aspects of kernel memory management.
798
799 Unless you know what you are doing, say N here.
800
801comment "Default settings for advanced configuration options are used"
802 depends on !ADVANCED_OPTIONS
803
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000804config LOWMEM_SIZE_BOOL
805 bool "Set maximum low memory"
806 depends on ADVANCED_OPTIONS
807 help
808 This option allows you to set the maximum amount of memory which
809 will be used as "low memory", that is, memory which the kernel can
810 access directly, without having to set up a kernel virtual mapping.
811 This can be useful in optimizing the layout of kernel virtual
812 memory.
813
814 Say N here unless you know what you are doing.
815
816config LOWMEM_SIZE
817 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
818 default "0x30000000"
819
Trent Piepho96051462008-12-08 19:34:58 -0800820config LOWMEM_CAM_NUM_BOOL
821 bool "Set number of CAMs to use to map low memory"
822 depends on ADVANCED_OPTIONS && FSL_BOOKE
823 help
824 This option allows you to set the maximum number of CAM slots that
825 will be used to map low memory. There are a limited number of slots
826 available and even more limited number that will fit in the L1 MMU.
827 However, using more entries will allow mapping more low memory. This
828 can be useful in optimizing the layout of kernel virtual memory.
829
830 Say N here unless you know what you are doing.
831
832config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400833 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800834 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
835 default 3
836
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000837config DYNAMIC_MEMSTART
838 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000839 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000840 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000841 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000842 This option enables the kernel to be loaded at any page aligned
843 physical address. The kernel creates a mapping from KERNELBASE to
844 the address where the kernel is loaded. The page size here implies
845 the TLB page size of the mapping for kernel on the particular platform.
846 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000847
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000848 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
849 kernel image, where the only restriction is the page aligned kernel
850 load address. When this option is enabled, the compile time physical
851 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000852
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000853 This option is overridden by CONFIG_RELOCATABLE
854
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000855config RELOCATABLE
856 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000857 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000858 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000859 help
860 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000861 location the kernel is loaded at, without any alignment restrictions.
862 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000863
864 One use is for the kexec on panic case where the recovery kernel
865 must live at a different physical address than the primary
866 kernel.
867
868 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
869 it has been loaded at and the compile time physical addresses
870 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
871 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000872 load address of the kernel (eg. u-boot/mkimage).
873
874config RELOCATABLE_PPC32
875 def_bool y
876 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000877
878config PAGE_OFFSET_BOOL
879 bool "Set custom page offset address"
880 depends on ADVANCED_OPTIONS
881 help
882 This option allows you to set the kernel virtual address at which
883 the kernel will map low memory. This can be useful in optimizing
884 the virtual memory layout of the system.
885
886 Say N here unless you know what you are doing.
887
888config PAGE_OFFSET
889 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
890 default "0xc0000000"
891
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000892config KERNEL_START_BOOL
893 bool "Set custom kernel base address"
894 depends on ADVANCED_OPTIONS
895 help
896 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000897 the kernel will be loaded. Normally this should match PAGE_OFFSET
898 however there are times (like kdump) that one might not want them
899 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000900
901 Say N here unless you know what you are doing.
902
903config KERNEL_START
904 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000905 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000906 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000907 default "0xc0000000"
908
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000909config PHYSICAL_START_BOOL
910 bool "Set physical address where the kernel is loaded"
911 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
912 help
913 This gives the physical address where the kernel is loaded.
914
915 Say N here unless you know what you are doing.
916
917config PHYSICAL_START
918 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000919 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000920 default "0x00000000"
921
922config PHYSICAL_ALIGN
923 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800924 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000925 help
926 This value puts the alignment restrictions on physical address
927 where kernel is loaded and run from. Kernel is compiled for an
928 address which meets above alignment restriction.
929
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000930config TASK_SIZE_BOOL
931 bool "Set custom user task size"
932 depends on ADVANCED_OPTIONS
933 help
934 This option allows you to set the amount of virtual address space
935 allocated to user tasks. This can be useful in optimizing the
936 virtual memory layout of the system.
937
938 Say N here unless you know what you are doing.
939
940config TASK_SIZE
941 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500942 default "0x80000000" if PPC_PREP || PPC_8xx
943 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000944
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000945config CONSISTENT_SIZE_BOOL
946 bool "Set custom consistent memory pool size"
947 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
948 help
949 This option allows you to set the size of the
950 consistent memory pool. This pool of virtual memory
951 is used to make consistent memory allocations.
952
953config CONSISTENT_SIZE
954 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
955 default "0x00200000" if NOT_COHERENT_CACHE
956
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000957config PIN_TLB
958 bool "Pinned Kernel TLBs (860 ONLY)"
959 depends on ADVANCED_OPTIONS && 8xx
960endmenu
961
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000962if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000963config RELOCATABLE
964 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000965 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000966 help
967 This builds a kernel image that is capable of running anywhere
968 in the RMA (real memory area) at any 16k-aligned base address.
969 The kernel is linked as a position-independent executable (PIE)
970 and contains dynamic relocations which are processed early
971 in the bootup process.
972
973 One use is for the kexec on panic case where the recovery kernel
974 must live at a different physical address than the primary
975 kernel.
976
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000977config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000978 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000979 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000980config KERNEL_START
981 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000982 default "0xc000000000000000"
983config PHYSICAL_START
984 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000985 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000986endif
987
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000988source "net/Kconfig"
989
990source "drivers/Kconfig"
991
992source "fs/Kconfig"
993
Li Yang98658532006-10-03 23:10:46 -0500994source "arch/powerpc/sysdev/qe_lib/Kconfig"
995
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000996source "lib/Kconfig"
997
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000998source "arch/powerpc/Kconfig.debug"
999
1000source "security/Kconfig"
1001
1002config KEYS_COMPAT
1003 bool
1004 depends on COMPAT && KEYS
1005 default y
1006
1007source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001008
1009config PPC_CLOCK
1010 bool
1011 default n
David Brownell9483a572008-07-23 21:26:48 -07001012 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001013
1014config PPC_LIB_RHEAP
1015 bool
1016
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001017source "arch/powerpc/kvm/Kconfig"