blob: 946e8816ecd3da25fa498ef56290c2aa4cbc46fa [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
Thomas Gleixner17e32ea2012-04-20 13:05:48 +0000147 select GENERIC_SMP_IDLE_THREAD
Thomas Gleixnerb0ce50a2012-05-03 09:02:57 +0000148 select HAVE_GENERIC_INIT_TASK
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000149
150config EARLY_PRINTK
151 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100152 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000153
154config COMPAT
155 bool
156 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800157 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400158 select ARCH_WANT_OLD_COMPAT_IPC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000159
160config SYSVIPC_COMPAT
161 bool
162 depends on COMPAT && SYSVIPC
163 default y
164
165# All PPC32s use generic nvram driver through ppc_md
166config GENERIC_NVRAM
167 bool
168 default y if PPC32
169
Ingo Molnarae1e9132008-11-11 09:05:16 +0100170config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000171 bool
172 default y
173
174config ARCH_MAY_HAVE_PC_FDC
175 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100176 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000177
Kumar Gala08264cb2006-01-10 21:43:56 -0600178config PPC_OF
179 def_bool y
180
181config PPC_UDBG_16550
182 bool
183 default n
184
Kumar Gala08264cb2006-01-10 21:43:56 -0600185config GENERIC_TBSYNC
186 bool
187 default y if PPC32 && SMP
188 default n
189
Al Viroe65e1fc2006-09-12 03:04:40 -0400190config AUDIT_ARCH
191 bool
192 default y
193
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800194config GENERIC_BUG
195 bool
196 default y
197 depends on BUG
198
Johannes Bergb3028872007-03-20 05:18:02 +1100199config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500200 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100201 bool
202
David Gibson6c5b59b2011-04-14 18:29:16 +0000203config EPAPR_BOOT
204 bool
205 help
206 Used to allow a board to specify it wants an ePAPR compliant wrapper.
207 default n
208
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600209config DEFAULT_UIMAGE
210 bool
211 help
212 Used to allow a board to specify it wants a uImage built by default
213 default n
214
Scott Woodb09c1642008-01-17 16:31:40 -0600215config REDBOOT
216 bool
217
Johannes Berg801e4062007-12-08 02:12:39 +0100218config ARCH_HIBERNATION_POSSIBLE
219 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000220 default y
221
Johannes Bergf4cb5702007-12-08 02:14:00 +0100222config ARCH_SUSPEND_POSSIBLE
223 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400224 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Kumar Galae5462d12011-04-08 04:20:54 -0500225 (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100226
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100227config PPC_DCR_NATIVE
228 bool
229 default n
230
231config PPC_DCR_MMIO
232 bool
233 default n
234
235config PPC_DCR
236 bool
237 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
238 default y
239
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100240config PPC_OF_PLATFORM_PCI
241 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100242 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100243 depends on PPC64 # not supported on 32 bits yet
244 default n
245
Akinobu Mita6a11f752009-03-31 15:23:17 -0700246config ARCH_SUPPORTS_DEBUG_PAGEALLOC
247 def_bool y
248
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000249config PPC_ADV_DEBUG_REGS
250 bool
251 depends on 40x || BOOKE
252 default y
253
254config PPC_ADV_DEBUG_IACS
255 int
256 depends on PPC_ADV_DEBUG_REGS
257 default 4 if 44x
258 default 2
259
260config PPC_ADV_DEBUG_DACS
261 int
262 depends on PPC_ADV_DEBUG_REGS
263 default 2
264
265config PPC_ADV_DEBUG_DVCS
266 int
267 depends on PPC_ADV_DEBUG_REGS
268 default 2 if 44x
269 default 0
270
271config PPC_ADV_DEBUG_DAC_RANGE
272 bool
273 depends on PPC_ADV_DEBUG_REGS && 44x
274 default y
275
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000276source "init/Kconfig"
277
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700278source "kernel/Kconfig.freezer"
279
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100280source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500281source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000282
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000283menu "Kernel options"
284
285config HIGHMEM
286 bool "High memory support"
287 depends on PPC32
288
Tony Breeds1ad74992007-09-21 13:26:03 +1000289source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000290source kernel/Kconfig.hz
291source kernel/Kconfig.preempt
292source "fs/Kconfig.binfmt"
293
Mel Gormanba72cb82007-11-28 16:21:13 -0800294config HUGETLB_PAGE_SIZE_VARIABLE
295 bool
296 depends on HUGETLB_PAGE
297 default y
298
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000299config MATH_EMULATION
300 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600301 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000302 ---help---
303 Some PowerPC chips designed for embedded applications do not have
304 a floating-point unit and therefore do not implement the
305 floating-point instructions in the PowerPC instruction set. If you
306 say Y here, the kernel will include code to emulate a floating-point
307 unit, which will allow programs that use floating-point
308 instructions to run.
309
Scott Wood5dd57a12007-09-18 15:29:35 -0500310config 8XX_MINIMAL_FPEMU
311 bool "Minimal math emulation for 8xx"
312 depends on 8xx && !MATH_EMULATION
313 help
314 Older arch/ppc kernels still emulated a few floating point
315 instructions such as load and store, even when full math
316 emulation is disabled. Say "Y" here if you want to preserve
317 this behavior.
318
319 It is recommended that you build a soft-float userspace instead.
320
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800321config IOMMU_HELPER
322 def_bool PPC64
323
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000324config SWIOTLB
325 bool "SWIOTLB support"
326 default n
327 select IOMMU_HELPER
328 ---help---
329 Support for IO bounce buffering for systems without an IOMMU.
330 This allows us to DMA to the full physical address space on
331 platforms where the size of a physical address is larger
332 than the bus address. Not all platforms support this.
333
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000334config HOTPLUG_CPU
335 bool "Support for enabling/disabling CPUs"
Benjamin Herrenschmidt344eb012011-09-19 17:44:54 +0000336 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000337 ---help---
338 Say Y here to be able to disable and re-enable individual
339 CPUs at runtime on SMP machines.
340
341 Say N if you are unsure.
342
Nathan Fontenot12633e82009-11-25 17:23:25 +0000343config ARCH_CPU_PROBE_RELEASE
344 def_bool y
345 depends on HOTPLUG_CPU
346
Yasunori Gotocc576372006-06-29 02:24:27 -0700347config ARCH_ENABLE_MEMORY_HOTPLUG
348 def_bool y
349
Badari Pulavartya99824f2008-02-05 00:10:18 -0800350config ARCH_HAS_WALK_MEMORY
351 def_bool y
352
Badari Pulavarty14824712008-02-05 00:10:17 -0800353config ARCH_ENABLE_MEMORY_HOTREMOVE
354 def_bool y
355
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000356config KEXEC
357 bool "kexec system call (EXPERIMENTAL)"
Suzuki Poulosebbc24a22011-11-14 16:43:50 +0000358 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000359 help
360 kexec is a system call that implements the ability to shutdown your
361 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400362 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000363 you can start any kernel with it, not just Linux.
364
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400365 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000366
367 It is an ongoing process to be certain the hardware in a machine
368 is properly shutdown, so do not be surprised if this code does not
369 initially work for you. It may help to enable device hotplugging
370 support. As of this writing the exact hardware interface is
371 strongly in flux, so no good recommendation can be made.
372
Haren Mynenie8625d462006-01-14 13:48:25 -0800373config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000374 bool "Build a kdump crash kernel"
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000375 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
376 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000377 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800378 help
379 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000380 The same kernel binary can be used as production kernel and dump
381 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800382
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000383config FA_DUMP
384 bool "Firmware-assisted dump"
385 depends on PPC64 && PPC_RTAS && CRASH_DUMP
Manish Ahuja242f2712008-03-22 10:50:50 +1100386 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000387 A robust mechanism to get reliable kernel crash dump with
388 assistance from firmware. This approach does not use kexec,
389 instead firmware assists in booting the kdump kernel
390 while preserving memory contents. Firmware-assisted dump
391 is meant to be a kdump replacement offering robustness and
392 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100393
394 If unsure, say "N"
395
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000396config IRQ_ALL_CPUS
397 bool "Distribute interrupts on all CPUs by default"
398 depends on SMP && !MV64360
399 help
400 This option gives the kernel permission to distribute IRQs across
401 multiple CPUs. Saying N here will route all IRQs to the first
402 CPU. Generally saying Y is safe, although some problems have been
403 reported with SMP Power Macintoshes with this option enabled.
404
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700405config NUMA
406 bool "NUMA support"
407 depends on PPC64
408 default y if SMP && PPC_PSERIES
409
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700410config NODES_SHIFT
411 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000412 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700413 default "4"
414 depends on NEED_MULTIPLE_NODES
415
Anton Blanchardea55bf22009-09-21 19:56:43 +0000416config MAX_ACTIVE_REGIONS
417 int
418 default "256" if PPC64
419 default "32"
420
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000421config ARCH_SELECT_MEMORY_MODEL
422 def_bool y
423 depends on PPC64
424
425config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000426 def_bool y
427 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000428
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000429config ARCH_SPARSEMEM_ENABLE
430 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000431 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700432 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100433
434config ARCH_SPARSEMEM_DEFAULT
435 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100436 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000437
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100438config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000439 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100440
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700441source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000442
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800443config ARCH_MEMORY_PROBE
444 def_bool y
445 depends on MEMORY_HOTPLUG
446
Andy Whitcroft75167952006-10-21 10:24:14 -0700447# Some NUMA nodes have memory ranges that span
448# other nodes. Even though a pfn is valid and
449# between a node's start and end pfns, it may not
450# reside on that node. See memmap_init_zone()
451# for details.
452config NODES_SPAN_OTHER_NODES
453 def_bool y
454 depends on NEED_MULTIPLE_NODES
455
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000456config PPC_HAS_HASH_64K
457 bool
458 depends on PPC64
459 default n
460
Yuri Tikhonove1240122009-01-29 01:40:44 +0000461config STDBINUTILS
462 bool "Using standard binutils settings"
463 depends on 44x
464 default y
465 help
466 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
467 Note, that kernel will be able to run only those applications,
468 which had been compiled using binutils later than 2.17.50.0.3 with
469 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
470 the older binutils, you can patch them with a trivial patch, which
471 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
472
Ilya Yanokca9153a2008-12-11 04:55:41 +0300473choice
474 prompt "Page size"
475 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100476 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300477 Select the kernel logical page size. Increasing the page size
478 will reduce software overhead at each page boundary, allow
479 hardware prefetch mechanisms to be more effective, and allow
480 larger dma transfers increasing IO efficiency and reducing
481 overhead. However the utilization of memory will increase.
482 For example, each cached file will using a multiple of the
483 page size to hold its contents and the difference between the
484 end of file and the end of page is wasted.
485
486 Some dedicated systems, such as software raid serving with
487 accelerated calculations, have shown significant increases.
488
489 If you configure a 64 bit kernel for 64k pages but the
490 processor does not support them, then the kernel will simulate
491 them with 4k pages, loading them on demand, but with the
492 reduced software overhead and larger internal fragmentation.
493 For the 32 bit kernel, a large page option will not be offered
494 unless it is supported by the configured processor.
495
496 If unsure, choose 4K_PAGES.
497
498config PPC_4K_PAGES
499 bool "4k page size"
500
501config PPC_16K_PAGES
502 bool "16k page size" if 44x
503
504config PPC_64K_PAGES
Benjamin Herrenschmidt2d27cfd2009-07-23 23:15:59 +0000505 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300506 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
507
Yuri Tikhonove1240122009-01-29 01:40:44 +0000508config PPC_256K_PAGES
509 bool "256k page size" if 44x
Hugh Dickinsadf213c2009-04-06 11:01:15 +0000510 depends on !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000511 help
512 Make the page size 256k.
513
514 As the ELF standard only requires alignment to support page
515 sizes up to 64k, you will need to compile all of your user
516 space applications with a non-standard binutils settings
517 (see the STDBINUTILS description for details).
518
519 Say N unless you know what you are doing.
520
Ilya Yanokca9153a2008-12-11 04:55:41 +0300521endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100522
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000523config FORCE_MAX_ZONEORDER
524 int "Maximum zone order"
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000525 range 9 64 if PPC64 && PPC_64K_PAGES
526 default "9" if PPC64 && PPC_64K_PAGES
527 range 13 64 if PPC64 && !PPC_64K_PAGES
528 default "13" if PPC64 && !PPC_64K_PAGES
529 range 9 64 if PPC32 && PPC_16K_PAGES
530 default "9" if PPC32 && PPC_16K_PAGES
531 range 7 64 if PPC32 && PPC_64K_PAGES
532 default "7" if PPC32 && PPC_64K_PAGES
533 range 5 64 if PPC32 && PPC_256K_PAGES
534 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000535 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000536 default "11"
537 help
538 The kernel memory allocator divides physically contiguous memory
539 blocks into "zones", where each zone is a power of two number of
540 pages. This option selects the largest power of two that the kernel
541 keeps in the memory allocator. If you need to allocate very large
542 blocks of physically contiguous memory, then you may need to
543 increase this value.
544
545 This config option is actually maximum order plus one. For example,
546 a value of 11 means that the largest free memory block is 2^10 pages.
547
548 The page size is not necessarily 4KB. For example, on 64-bit
549 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
550 this in mind when choosing a value for this option.
551
Paul Mackerrasfa282372008-01-24 08:35:13 +1100552config PPC_SUBPAGE_PROT
553 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300554 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100555 help
556 This option adds support for a system call to allow user programs
557 to set access permissions (read/write, readonly, or no access)
558 on the 4k subpages of each 64k page.
559
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000560config SCHED_SMT
561 bool "SMT (Hyperthreading) scheduler support"
562 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000563 help
564 SMT scheduler support improves the CPU scheduler's decision making
565 when dealing with POWER5 cpus at a cost of slightly increased
566 overhead in some places. If unsure say N here.
567
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000568config CMDLINE_BOOL
569 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000570
571config CMDLINE
572 string "Initial kernel command string"
573 depends on CMDLINE_BOOL
574 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
575 help
576 On some platforms, there is currently no way for the boot loader to
577 pass arguments to the kernel. For these platforms, you can supply
578 some command-line options at build time by entering them here. In
579 most cases you will need to specify the root device here.
580
Grant Likelyc356aa42008-07-09 09:41:52 -0600581config EXTRA_TARGETS
582 string "Additional default image types"
583 help
584 List additional targets to be built by the bootwrapper here (separated
585 by spaces). This is useful for targets that depend of device tree
586 files in the .dts directory.
587
588 Targets in this list will be build as part of the default build
589 target, or when the user does a 'make zImage' or a
590 'make zImage.initrd'.
591
592 If unsure, leave blank
593
Johannes Bergb28f5082008-01-15 23:17:00 -0500594config ARCH_WANTS_FREEZER_CONTROL
595 def_bool y
596 depends on ADB_PMU
597
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000598source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000599
600config SECCOMP
601 bool "Enable seccomp to safely compute untrusted bytecode"
602 depends on PROC_FS
603 default y
604 help
605 This kernel feature is useful for number crunching applications
606 that may need to compute untrusted bytecode during their
607 execution. By using pipes or other transports made available to
608 the process as file descriptors supporting the read/write
609 syscalls, it's possible to isolate those applications in
610 their own address space using seccomp. Once seccomp is
611 enabled via /proc/<pid>/seccomp, it cannot be disabled
612 and the task is only allowed to execute a few safe syscalls
613 defined by each seccomp mode.
614
615 If unsure, say Y. Only embedded should say N here.
616
617endmenu
618
619config ISA_DMA_API
620 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000621 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000622
623menu "Bus options"
624
625config ISA
626 bool "Support for ISA-bus hardware"
627 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000628 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000629 help
630 Find out whether you have ISA slots on your motherboard. ISA is the
631 name of a bus system, i.e. the way the CPU talks to the other stuff
632 inside your box. If you have an Apple machine, say N here; if you
633 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
634 you have an embedded board, consult your board documentation.
635
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800636config ZONE_DMA
637 bool
638 default y
639
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800640config NEED_DMA_MAP_STATE
641 def_bool (PPC64 || NOT_COHERENT_CACHE)
642
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700643config NEED_SG_DMA_LENGTH
644 def_bool y
645
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000646config GENERIC_ISA_DMA
647 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000648 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000649 default y
650
Paul Mackerras25635c72005-10-26 16:36:55 +1000651config PPC_INDIRECT_PCI
652 bool
653 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600654 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000655 default n
656
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000657config EISA
658 bool
659
660config SBUS
661 bool
662
Kumar Gala08264cb2006-01-10 21:43:56 -0600663config FSL_SOC
664 bool
holt@sgi.comb489da82011-08-16 17:32:24 +0000665 select HAVE_CAN_FLEXCAN if NET && CAN
666 select PPC_CLOCK if CAN_FLEXCAN
Kumar Gala08264cb2006-01-10 21:43:56 -0600667
Roy Zang55c44992007-07-10 18:44:34 +0800668config FSL_PCI
669 bool
670 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600671 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800672
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400673config FSL_PMC
674 bool
675 default y
676 depends on SUSPEND && (PPC_85xx || PPC_86xx)
677 help
678 Freescale MPC85xx/MPC86xx power management controller support
679 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
680
Victor Gallardod164f6d2010-10-08 10:25:27 +0000681config PPC4xx_CPM
682 bool
683 default y
684 depends on SUSPEND && (44x || 40x)
685 help
686 PPC4xx Clock Power Management (CPM) support (suspend/resume).
687 It also enables support for two different idle states (idle-wait
688 and idle-doze).
689
Stefan Roese2a706912008-03-26 22:39:50 +1100690config 4xx_SOC
691 bool
692
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400693config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800694 bool "Freescale Local Bus support"
695 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400696 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800697 Enables reporting of errors from the Freescale local bus
698 controller. Also contains some common code used by
699 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400700
Prabhakar Kushwahaa20cbde2011-12-27 17:39:13 +0530701config FSL_IFC
702 bool
703 depends on FSL_SOC
704
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400705config FSL_GTM
706 bool
707 depends on PPC_83xx || QUICC_ENGINE || CPM2
708 help
709 Freescale General-purpose Timers support
710
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000711# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
712config MCA
713 bool
714
John Rigbyb5005632008-06-26 11:07:56 -0600715# Platforms that what PCI turned unconditionally just do select PCI
716# in their config node. Platforms that want to choose at config
717# time should select PPC_PCI_CHOICE
718config PPC_PCI_CHOICE
719 bool
720
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000721config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600722 bool "PCI support" if PPC_PCI_CHOICE
723 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000724 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000725 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000726 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000727 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200728 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000729 help
730 Find out whether your system includes a PCI bus. PCI is the name of
731 a bus system, i.e. the way the CPU talks to the other stuff inside
732 your box. If you say Y here, the kernel will include drivers and
733 infrastructure code to support PCI bus devices.
734
735config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600736 def_bool PCI
737
738config PCI_SYSCALL
739 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000740
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000741config PCI_QSPAN
742 bool "QSpan PCI"
743 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000744 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000745 help
746 Say Y here if you have a system based on a Motorola 8xx-series
747 embedded processor with a QSPAN PCI interface, otherwise say N.
748
749config PCI_8260
750 bool
751 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000752 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000753 default y
754
755config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700756 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500757 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000758 default y
759
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500760source "drivers/pci/pcie/Kconfig"
761
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000762source "drivers/pci/Kconfig"
763
764source "drivers/pcmcia/Kconfig"
765
766source "drivers/pci/hotplug/Kconfig"
767
Zhang Weif1f389d2008-04-18 13:33:39 -0700768config HAS_RAPIDIO
769 bool
770 default n
771
772config RAPIDIO
773 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700774 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700775 help
776 If you say Y here, the kernel will include drivers and
777 infrastructure code to support RapidIO interconnect devices.
778
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700779config FSL_RIO
780 bool "Freescale Embedded SRIO Controller support"
781 depends on RAPIDIO && HAS_RAPIDIO
782 default "n"
783 ---help---
784 Include support for RapidIO controller on Freescale embedded
785 processors (MPC8548, MPC8641, etc).
786
Zhang Weif1f389d2008-04-18 13:33:39 -0700787source "drivers/rapidio/Kconfig"
788
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000789endmenu
790
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000791config NONSTATIC_KERNEL
792 bool
793 default n
794
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000795menu "Advanced setup"
796 depends on PPC32
797
798config ADVANCED_OPTIONS
799 bool "Prompt for advanced kernel configuration options"
800 help
801 This option will enable prompting for a variety of advanced kernel
802 configuration options. These options can cause the kernel to not
803 work if they are set incorrectly, but can be used to optimize certain
804 aspects of kernel memory management.
805
806 Unless you know what you are doing, say N here.
807
808comment "Default settings for advanced configuration options are used"
809 depends on !ADVANCED_OPTIONS
810
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000811config LOWMEM_SIZE_BOOL
812 bool "Set maximum low memory"
813 depends on ADVANCED_OPTIONS
814 help
815 This option allows you to set the maximum amount of memory which
816 will be used as "low memory", that is, memory which the kernel can
817 access directly, without having to set up a kernel virtual mapping.
818 This can be useful in optimizing the layout of kernel virtual
819 memory.
820
821 Say N here unless you know what you are doing.
822
823config LOWMEM_SIZE
824 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
825 default "0x30000000"
826
Trent Piepho96051462008-12-08 19:34:58 -0800827config LOWMEM_CAM_NUM_BOOL
828 bool "Set number of CAMs to use to map low memory"
829 depends on ADVANCED_OPTIONS && FSL_BOOKE
830 help
831 This option allows you to set the maximum number of CAM slots that
832 will be used to map low memory. There are a limited number of slots
833 available and even more limited number that will fit in the L1 MMU.
834 However, using more entries will allow mapping more low memory. This
835 can be useful in optimizing the layout of kernel virtual memory.
836
837 Say N here unless you know what you are doing.
838
839config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400840 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800841 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
842 default 3
843
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000844config DYNAMIC_MEMSTART
845 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000846 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000847 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000848 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000849 This option enables the kernel to be loaded at any page aligned
850 physical address. The kernel creates a mapping from KERNELBASE to
851 the address where the kernel is loaded. The page size here implies
852 the TLB page size of the mapping for kernel on the particular platform.
853 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000854
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000855 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
856 kernel image, where the only restriction is the page aligned kernel
857 load address. When this option is enabled, the compile time physical
858 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000859
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000860 This option is overridden by CONFIG_RELOCATABLE
861
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000862config RELOCATABLE
863 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000864 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000865 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000866 help
867 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000868 location the kernel is loaded at, without any alignment restrictions.
869 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000870
871 One use is for the kexec on panic case where the recovery kernel
872 must live at a different physical address than the primary
873 kernel.
874
875 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
876 it has been loaded at and the compile time physical addresses
877 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
878 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000879 load address of the kernel (eg. u-boot/mkimage).
880
881config RELOCATABLE_PPC32
882 def_bool y
883 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000884
885config PAGE_OFFSET_BOOL
886 bool "Set custom page offset address"
887 depends on ADVANCED_OPTIONS
888 help
889 This option allows you to set the kernel virtual address at which
890 the kernel will map low memory. This can be useful in optimizing
891 the virtual memory layout of the system.
892
893 Say N here unless you know what you are doing.
894
895config PAGE_OFFSET
896 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
897 default "0xc0000000"
898
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000899config KERNEL_START_BOOL
900 bool "Set custom kernel base address"
901 depends on ADVANCED_OPTIONS
902 help
903 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000904 the kernel will be loaded. Normally this should match PAGE_OFFSET
905 however there are times (like kdump) that one might not want them
906 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000907
908 Say N here unless you know what you are doing.
909
910config KERNEL_START
911 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000912 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000913 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000914 default "0xc0000000"
915
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000916config PHYSICAL_START_BOOL
917 bool "Set physical address where the kernel is loaded"
918 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
919 help
920 This gives the physical address where the kernel is loaded.
921
922 Say N here unless you know what you are doing.
923
924config PHYSICAL_START
925 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000926 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000927 default "0x00000000"
928
929config PHYSICAL_ALIGN
930 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800931 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000932 help
933 This value puts the alignment restrictions on physical address
934 where kernel is loaded and run from. Kernel is compiled for an
935 address which meets above alignment restriction.
936
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000937config TASK_SIZE_BOOL
938 bool "Set custom user task size"
939 depends on ADVANCED_OPTIONS
940 help
941 This option allows you to set the amount of virtual address space
942 allocated to user tasks. This can be useful in optimizing the
943 virtual memory layout of the system.
944
945 Say N here unless you know what you are doing.
946
947config TASK_SIZE
948 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500949 default "0x80000000" if PPC_PREP || PPC_8xx
950 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000951
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000952config CONSISTENT_SIZE_BOOL
953 bool "Set custom consistent memory pool size"
954 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
955 help
956 This option allows you to set the size of the
957 consistent memory pool. This pool of virtual memory
958 is used to make consistent memory allocations.
959
960config CONSISTENT_SIZE
961 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
962 default "0x00200000" if NOT_COHERENT_CACHE
963
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000964config PIN_TLB
965 bool "Pinned Kernel TLBs (860 ONLY)"
966 depends on ADVANCED_OPTIONS && 8xx
967endmenu
968
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000969if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000970config RELOCATABLE
971 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000972 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000973 help
974 This builds a kernel image that is capable of running anywhere
975 in the RMA (real memory area) at any 16k-aligned base address.
976 The kernel is linked as a position-independent executable (PIE)
977 and contains dynamic relocations which are processed early
978 in the bootup process.
979
980 One use is for the kexec on panic case where the recovery kernel
981 must live at a different physical address than the primary
982 kernel.
983
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000984config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000985 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000986 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000987config KERNEL_START
988 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000989 default "0xc000000000000000"
990config PHYSICAL_START
991 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000992 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000993endif
994
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000995source "net/Kconfig"
996
997source "drivers/Kconfig"
998
999source "fs/Kconfig"
1000
Li Yang98658532006-10-03 23:10:46 -05001001source "arch/powerpc/sysdev/qe_lib/Kconfig"
1002
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001003source "lib/Kconfig"
1004
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001005source "arch/powerpc/Kconfig.debug"
1006
1007source "security/Kconfig"
1008
1009config KEYS_COMPAT
1010 bool
1011 depends on COMPAT && KEYS
1012 default y
1013
1014source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001015
1016config PPC_CLOCK
1017 bool
1018 default n
David Brownell9483a572008-07-23 21:26:48 -07001019 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001020
1021config PPC_LIB_RHEAP
1022 bool
1023
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001024source "arch/powerpc/kvm/Kconfig"