blob: 74f84781b484ea02755c7f4e078abd514ccfa43e [file] [log] [blame]
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10001source "arch/powerpc/platforms/Kconfig.cputype"
Johannes Berg17e638b2007-03-19 11:53:53 +01002
Paul Mackerras14cf11a2005-09-26 16:04:21 +10003config PPC32
4 bool
5 default y if !PPC64
6
kerstin jonsson234a71a2010-10-22 00:17:55 +00007config 32BIT
8 bool
9 default y if PPC32
10
Paul Mackerras14cf11a2005-09-26 16:04:21 +100011config 64BIT
12 bool
13 default y if PPC64
14
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100015config WORD_SIZE
16 int
17 default 64 if PPC64
18 default 32 if !PPC64
19
Jeremy Fitzhardinge600715d2008-09-11 01:31:45 -070020config ARCH_PHYS_ADDR_T_64BIT
21 def_bool PPC64 || PHYS_64BIT
22
FUJITA Tomonori787d44c2010-10-01 11:12:54 +000023config ARCH_DMA_ADDR_T_64BIT
24 def_bool ARCH_PHYS_ADDR_T_64BIT
25
Paul Mackerras14cf11a2005-09-26 16:04:21 +100026config MMU
27 bool
28 default y
29
Tejun Heoc2a7e812009-08-14 15:00:53 +090030config HAVE_SETUP_PER_CPU_AREA
Tejun Heoe74e3962009-03-30 19:07:44 +090031 def_bool PPC64
32
Tejun Heoc2a7e812009-08-14 15:00:53 +090033config NEED_PER_CPU_EMBED_FIRST_CHUNK
travis@sgi.comb32ef632008-01-30 13:32:51 +010034 def_bool PPC64
35
Michael Ellerman551b81f2009-10-13 19:44:44 +000036config NR_IRQS
37 int "Number of virtual interrupt numbers"
Anton Blanchard859aefc2010-01-31 01:14:03 +000038 range 32 32768
Michael Ellerman551b81f2009-10-13 19:44:44 +000039 default "512"
40 help
41 This defines the number of virtual interrupt numbers the kernel
42 can manage. Virtual interrupt numbers are what you see in
43 /proc/interrupts. If you configure your system to have too few,
44 drivers will fail to load or worse - handle with care.
45
Christoph Hellwigfd3e0bb2008-04-17 14:35:00 +100046config STACKTRACE_SUPPORT
47 bool
48 default y
49
Arnd Bergmann01f4b8b2008-07-11 00:08:18 +100050config HAVE_LATENCYTOP_SUPPORT
51 def_bool y
52
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100053config TRACE_IRQFLAGS_SUPPORT
54 bool
Benjamin Herrenschmidt945feb12008-04-17 14:35:01 +100055 default y
56
57config LOCKDEP_SUPPORT
58 bool
59 default y
60
Paul Mackerras14cf11a2005-09-26 16:04:21 +100061config RWSEM_GENERIC_SPINLOCK
62 bool
63
64config RWSEM_XCHGADD_ALGORITHM
65 bool
66 default y
67
Nick Piggin95c354f2008-01-30 13:31:20 +010068config GENERIC_LOCKBREAK
69 bool
70 default y
71 depends on SMP && PREEMPT
72
David Howellsf0d1b0b2006-12-08 02:37:49 -080073config ARCH_HAS_ILOG2_U32
74 bool
David Howellsef55d532006-12-08 02:37:53 -080075 default y
David Howellsf0d1b0b2006-12-08 02:37:49 -080076
77config ARCH_HAS_ILOG2_U64
78 bool
David Howellsef55d532006-12-08 02:37:53 -080079 default y if 64BIT
David Howellsf0d1b0b2006-12-08 02:37:49 -080080
Akinobu Mitae779b2f2006-03-26 01:39:33 -080081config GENERIC_HWEIGHT
82 bool
83 default y
84
Anton Vorontsovb7ce3412008-04-11 23:06:36 +100085config GENERIC_GPIO
86 bool
87 help
88 Generic GPIO API support
89
Stephen Rothwellf057eac2007-07-15 23:40:05 -070090config ARCH_NO_VIRT_TO_BUS
91 def_bool PPC64
92
Paul Mackerras14cf11a2005-09-26 16:04:21 +100093config PPC
94 bool
95 default y
Stephen Rothwell10f85f42010-06-29 12:43:34 +100096 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -080097 select OF_EARLY_FLATTREE
Steven Rostedt2b79d692009-01-06 18:49:17 +000098 select HAVE_FTRACE_MCOUNT_RECORD
99 select HAVE_DYNAMIC_FTRACE
Steven Rostedt606576c2008-10-06 19:06:12 -0400100 select HAVE_FUNCTION_TRACER
Steven Rostedt60ce8f72009-02-11 20:06:43 -0500101 select HAVE_FUNCTION_GRAPH_TRACER
Michael Buesch7444a722008-07-25 01:46:11 -0700102 select ARCH_WANT_OPTIONAL_GPIOLIB
Sam Ravnborgec7748b2008-02-09 10:46:40 +0100103 select HAVE_IDE
Benjamin Herrenschmidta1f242f2008-07-23 21:27:08 -0700104 select HAVE_IOREMAP_PROT
Johannes Berg58340a02008-07-25 01:45:33 -0700105 select HAVE_EFFICIENT_UNALIGNED_ACCESS
Mathieu Desnoyers3f550092008-02-02 15:10:35 -0500106 select HAVE_KPROBES
Jason Wessel17ce4522008-07-23 11:30:15 -0500107 select HAVE_ARCH_KGDB
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -0800108 select HAVE_KRETPROBES
Roland McGrathdec2b0d2008-07-27 16:53:20 +1000109 select HAVE_ARCH_TRACEHOOK
Yinghai Lu95f72d12010-07-12 14:36:09 +1000110 select HAVE_MEMBLOCK
Tejun Heo1d7cfe12011-12-08 10:22:08 -0800111 select HAVE_MEMBLOCK_NODE_MAP
FUJITA Tomonori46bab4e2009-08-04 19:08:26 +0000112 select HAVE_DMA_ATTRS
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000113 select HAVE_DMA_API_DEBUG
Jens Axboeb7d7a242008-06-26 11:22:13 +0200114 select USE_GENERIC_SMP_HELPERS if SMP
Steven Rostedt4e491d12008-05-14 23:49:44 -0400115 select HAVE_OPROFILE
Benjamin Herrenschmidtee6a0932009-01-14 14:14:00 +0100116 select HAVE_SYSCALL_WRAPPERS if PPC64
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000117 select GENERIC_ATOMIC64 if PPC32
Catalin Marinas74634492012-07-30 14:41:09 -0700118 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Peter Zijlstrae360adb2010-10-14 14:01:34 +0800119 select HAVE_IRQ_WORK
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200120 select HAVE_PERF_EVENTS
Mahesh Salgaonkar359e4282010-04-07 18:10:20 +1000121 select HAVE_REGS_AND_STACK_ACCESS_API
K.Prasad5aae8a52010-06-15 11:35:19 +0530122 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
Thomas Gleixner26043622011-01-19 20:39:39 +0100123 select HAVE_GENERIC_HARDIRQS
Will Deaconc1d7e012012-07-30 14:42:46 -0700124 select ARCH_WANT_IPC_PARSE_VERSION
Grant Likelyad5b7f132012-01-30 08:02:19 +0000125 select SPARSE_IRQ
Thomas Gleixner26043622011-01-19 20:39:39 +0100126 select IRQ_PER_CPU
Grant Likelycc79ca62012-02-16 01:37:49 -0700127 select IRQ_DOMAIN
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100128 select GENERIC_IRQ_SHOW
129 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000130 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700131 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000132 select HAVE_SYSCALL_TRACEPOINTS
Sam Ravnborge47b65b2012-05-21 20:45:37 +0200133 select HAVE_BPF_JIT if PPC64
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000134 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800135 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Thomas Gleixner17e32ea2012-04-20 13:05:48 +0000136 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixnerb9ed27d2012-05-18 16:45:51 +0000137 select GENERIC_CMOS_UPDATE
138 select GENERIC_TIME_VSYSCALL
139 select GENERIC_CLOCKEVENTS
Paul Mackerras16293722012-05-28 13:03:47 +1000140 select GENERIC_STRNCPY_FROM_USER
141 select GENERIC_STRNLEN_USER
David Howells786d35d2012-09-28 14:31:03 +0930142 select HAVE_MOD_ARCH_SPECIFIC
143 select MODULES_USE_ELF_RELA
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000144
145config EARLY_PRINTK
146 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100147 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000148
149config COMPAT
150 bool
151 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800152 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400153 select ARCH_WANT_OLD_COMPAT_IPC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000154
155config SYSVIPC_COMPAT
156 bool
157 depends on COMPAT && SYSVIPC
158 default y
159
160# All PPC32s use generic nvram driver through ppc_md
161config GENERIC_NVRAM
162 bool
163 default y if PPC32
164
Ingo Molnarae1e9132008-11-11 09:05:16 +0100165config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000166 bool
167 default y
168
169config ARCH_MAY_HAVE_PC_FDC
170 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100171 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000172
Kumar Gala08264cb2006-01-10 21:43:56 -0600173config PPC_OF
174 def_bool y
175
176config PPC_UDBG_16550
177 bool
178 default n
179
Kumar Gala08264cb2006-01-10 21:43:56 -0600180config GENERIC_TBSYNC
181 bool
182 default y if PPC32 && SMP
183 default n
184
Al Viroe65e1fc2006-09-12 03:04:40 -0400185config AUDIT_ARCH
186 bool
187 default y
188
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800189config GENERIC_BUG
190 bool
191 default y
192 depends on BUG
193
Johannes Bergb3028872007-03-20 05:18:02 +1100194config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500195 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100196 bool
197
David Gibson6c5b59b2011-04-14 18:29:16 +0000198config EPAPR_BOOT
199 bool
200 help
201 Used to allow a board to specify it wants an ePAPR compliant wrapper.
202 default n
203
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600204config DEFAULT_UIMAGE
205 bool
206 help
207 Used to allow a board to specify it wants a uImage built by default
208 default n
209
Scott Woodb09c1642008-01-17 16:31:40 -0600210config REDBOOT
211 bool
212
Johannes Berg801e4062007-12-08 02:12:39 +0100213config ARCH_HIBERNATION_POSSIBLE
214 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000215 default y
216
Johannes Bergf4cb5702007-12-08 02:14:00 +0100217config ARCH_SUSPEND_POSSIBLE
218 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400219 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Kumar Galae5462d12011-04-08 04:20:54 -0500220 (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100221
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100222config PPC_DCR_NATIVE
223 bool
224 default n
225
226config PPC_DCR_MMIO
227 bool
228 default n
229
230config PPC_DCR
231 bool
232 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
233 default y
234
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100235config PPC_OF_PLATFORM_PCI
236 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100237 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100238 depends on PPC64 # not supported on 32 bits yet
239 default n
240
Akinobu Mita6a11f752009-03-31 15:23:17 -0700241config ARCH_SUPPORTS_DEBUG_PAGEALLOC
242 def_bool y
243
Dave Kleikamp172ae2e2010-02-08 11:50:57 +0000244config PPC_ADV_DEBUG_REGS
245 bool
246 depends on 40x || BOOKE
247 default y
248
249config PPC_ADV_DEBUG_IACS
250 int
251 depends on PPC_ADV_DEBUG_REGS
252 default 4 if 44x
253 default 2
254
255config PPC_ADV_DEBUG_DACS
256 int
257 depends on PPC_ADV_DEBUG_REGS
258 default 2
259
260config PPC_ADV_DEBUG_DVCS
261 int
262 depends on PPC_ADV_DEBUG_REGS
263 default 2 if 44x
264 default 0
265
266config PPC_ADV_DEBUG_DAC_RANGE
267 bool
268 depends on PPC_ADV_DEBUG_REGS && 44x
269 default y
270
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000271source "init/Kconfig"
272
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700273source "kernel/Kconfig.freezer"
274
Benjamin Herrenschmidta2d2e1e2007-12-21 15:39:24 +1100275source "arch/powerpc/sysdev/Kconfig"
Kumar Gala4330f5d2007-03-16 09:32:17 -0500276source "arch/powerpc/platforms/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000277
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000278menu "Kernel options"
279
280config HIGHMEM
281 bool "High memory support"
282 depends on PPC32
283
284source kernel/Kconfig.hz
285source kernel/Kconfig.preempt
286source "fs/Kconfig.binfmt"
287
Mel Gormanba72cb82007-11-28 16:21:13 -0800288config HUGETLB_PAGE_SIZE_VARIABLE
289 bool
290 depends on HUGETLB_PAGE
291 default y
292
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000293config MATH_EMULATION
294 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600295 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000296 ---help---
297 Some PowerPC chips designed for embedded applications do not have
298 a floating-point unit and therefore do not implement the
299 floating-point instructions in the PowerPC instruction set. If you
300 say Y here, the kernel will include code to emulate a floating-point
301 unit, which will allow programs that use floating-point
302 instructions to run.
303
Scott Wood5dd57a12007-09-18 15:29:35 -0500304config 8XX_MINIMAL_FPEMU
305 bool "Minimal math emulation for 8xx"
306 depends on 8xx && !MATH_EMULATION
307 help
308 Older arch/ppc kernels still emulated a few floating point
309 instructions such as load and store, even when full math
310 emulation is disabled. Say "Y" here if you want to preserve
311 this behavior.
312
313 It is recommended that you build a soft-float userspace instead.
314
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800315config IOMMU_HELPER
316 def_bool PPC64
317
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000318config SWIOTLB
319 bool "SWIOTLB support"
320 default n
321 select IOMMU_HELPER
322 ---help---
323 Support for IO bounce buffering for systems without an IOMMU.
324 This allows us to DMA to the full physical address space on
325 platforms where the size of a physical address is larger
326 than the bus address. Not all platforms support this.
327
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000328config HOTPLUG_CPU
329 bool "Support for enabling/disabling CPUs"
Benjamin Herrenschmidt344eb012011-09-19 17:44:54 +0000330 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000331 ---help---
332 Say Y here to be able to disable and re-enable individual
333 CPUs at runtime on SMP machines.
334
335 Say N if you are unsure.
336
Nathan Fontenot12633e82009-11-25 17:23:25 +0000337config ARCH_CPU_PROBE_RELEASE
338 def_bool y
339 depends on HOTPLUG_CPU
340
Yasunori Gotocc576372006-06-29 02:24:27 -0700341config ARCH_ENABLE_MEMORY_HOTPLUG
342 def_bool y
343
Badari Pulavartya99824f2008-02-05 00:10:18 -0800344config ARCH_HAS_WALK_MEMORY
345 def_bool y
346
Badari Pulavarty14824712008-02-05 00:10:17 -0800347config ARCH_ENABLE_MEMORY_HOTREMOVE
348 def_bool y
349
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000350config KEXEC
351 bool "kexec system call (EXPERIMENTAL)"
Suzuki Poulose68343022012-04-15 22:27:18 +0000352 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000353 help
354 kexec is a system call that implements the ability to shutdown your
355 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400356 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000357 you can start any kernel with it, not just Linux.
358
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400359 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000360
361 It is an ongoing process to be certain the hardware in a machine
362 is properly shutdown, so do not be surprised if this code does not
363 initially work for you. It may help to enable device hotplugging
364 support. As of this writing the exact hardware interface is
365 strongly in flux, so no good recommendation can be made.
366
Haren Mynenie8625d462006-01-14 13:48:25 -0800367config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000368 bool "Build a kdump crash kernel"
Suzuki Poulose47da4212012-04-15 22:27:35 +0000369 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000370 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000371 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800372 help
373 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000374 The same kernel binary can be used as production kernel and dump
375 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800376
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000377config FA_DUMP
378 bool "Firmware-assisted dump"
379 depends on PPC64 && PPC_RTAS && CRASH_DUMP
Manish Ahuja242f2712008-03-22 10:50:50 +1100380 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000381 A robust mechanism to get reliable kernel crash dump with
382 assistance from firmware. This approach does not use kexec,
383 instead firmware assists in booting the kdump kernel
384 while preserving memory contents. Firmware-assisted dump
385 is meant to be a kdump replacement offering robustness and
386 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100387
388 If unsure, say "N"
389
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000390config IRQ_ALL_CPUS
391 bool "Distribute interrupts on all CPUs by default"
392 depends on SMP && !MV64360
393 help
394 This option gives the kernel permission to distribute IRQs across
395 multiple CPUs. Saying N here will route all IRQs to the first
396 CPU. Generally saying Y is safe, although some problems have been
397 reported with SMP Power Macintoshes with this option enabled.
398
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700399config NUMA
400 bool "NUMA support"
401 depends on PPC64
402 default y if SMP && PPC_PSERIES
403
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700404config NODES_SHIFT
405 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000406 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700407 default "4"
408 depends on NEED_MULTIPLE_NODES
409
Anton Blanchardea55bf22009-09-21 19:56:43 +0000410config MAX_ACTIVE_REGIONS
411 int
412 default "256" if PPC64
413 default "32"
414
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000415config ARCH_SELECT_MEMORY_MODEL
416 def_bool y
417 depends on PPC64
418
419config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000420 def_bool y
421 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000422
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000423config ARCH_SPARSEMEM_ENABLE
424 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000425 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700426 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100427
428config ARCH_SPARSEMEM_DEFAULT
429 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100430 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000431
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100432config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000433 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100434
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700435source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000436
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800437config ARCH_MEMORY_PROBE
438 def_bool y
439 depends on MEMORY_HOTPLUG
440
Andy Whitcroft75167952006-10-21 10:24:14 -0700441# Some NUMA nodes have memory ranges that span
442# other nodes. Even though a pfn is valid and
443# between a node's start and end pfns, it may not
444# reside on that node. See memmap_init_zone()
445# for details.
446config NODES_SPAN_OTHER_NODES
447 def_bool y
448 depends on NEED_MULTIPLE_NODES
449
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000450config PPC_HAS_HASH_64K
451 bool
452 depends on PPC64
453 default n
454
Yuri Tikhonove1240122009-01-29 01:40:44 +0000455config STDBINUTILS
456 bool "Using standard binutils settings"
457 depends on 44x
458 default y
459 help
460 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
461 Note, that kernel will be able to run only those applications,
462 which had been compiled using binutils later than 2.17.50.0.3 with
463 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
464 the older binutils, you can patch them with a trivial patch, which
465 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
466
Ilya Yanokca9153a2008-12-11 04:55:41 +0300467choice
468 prompt "Page size"
469 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100470 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300471 Select the kernel logical page size. Increasing the page size
472 will reduce software overhead at each page boundary, allow
473 hardware prefetch mechanisms to be more effective, and allow
474 larger dma transfers increasing IO efficiency and reducing
475 overhead. However the utilization of memory will increase.
476 For example, each cached file will using a multiple of the
477 page size to hold its contents and the difference between the
478 end of file and the end of page is wasted.
479
480 Some dedicated systems, such as software raid serving with
481 accelerated calculations, have shown significant increases.
482
483 If you configure a 64 bit kernel for 64k pages but the
484 processor does not support them, then the kernel will simulate
485 them with 4k pages, loading them on demand, but with the
486 reduced software overhead and larger internal fragmentation.
487 For the 32 bit kernel, a large page option will not be offered
488 unless it is supported by the configured processor.
489
490 If unsure, choose 4K_PAGES.
491
492config PPC_4K_PAGES
493 bool "4k page size"
494
495config PPC_16K_PAGES
496 bool "16k page size" if 44x
497
498config PPC_64K_PAGES
Benjamin Herrenschmidt2d27cfd2009-07-23 23:15:59 +0000499 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300500 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
501
Yuri Tikhonove1240122009-01-29 01:40:44 +0000502config PPC_256K_PAGES
503 bool "256k page size" if 44x
Hugh Dickinsadf213c2009-04-06 11:01:15 +0000504 depends on !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000505 help
506 Make the page size 256k.
507
508 As the ELF standard only requires alignment to support page
509 sizes up to 64k, you will need to compile all of your user
510 space applications with a non-standard binutils settings
511 (see the STDBINUTILS description for details).
512
513 Say N unless you know what you are doing.
514
Ilya Yanokca9153a2008-12-11 04:55:41 +0300515endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100516
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000517config FORCE_MAX_ZONEORDER
518 int "Maximum zone order"
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000519 range 9 64 if PPC64 && PPC_64K_PAGES
520 default "9" if PPC64 && PPC_64K_PAGES
521 range 13 64 if PPC64 && !PPC_64K_PAGES
522 default "13" if PPC64 && !PPC_64K_PAGES
523 range 9 64 if PPC32 && PPC_16K_PAGES
524 default "9" if PPC32 && PPC_16K_PAGES
525 range 7 64 if PPC32 && PPC_64K_PAGES
526 default "7" if PPC32 && PPC_64K_PAGES
527 range 5 64 if PPC32 && PPC_256K_PAGES
528 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000529 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000530 default "11"
531 help
532 The kernel memory allocator divides physically contiguous memory
533 blocks into "zones", where each zone is a power of two number of
534 pages. This option selects the largest power of two that the kernel
535 keeps in the memory allocator. If you need to allocate very large
536 blocks of physically contiguous memory, then you may need to
537 increase this value.
538
539 This config option is actually maximum order plus one. For example,
540 a value of 11 means that the largest free memory block is 2^10 pages.
541
542 The page size is not necessarily 4KB. For example, on 64-bit
543 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
544 this in mind when choosing a value for this option.
545
Paul Mackerrasfa282372008-01-24 08:35:13 +1100546config PPC_SUBPAGE_PROT
547 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300548 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100549 help
550 This option adds support for a system call to allow user programs
551 to set access permissions (read/write, readonly, or no access)
552 on the 4k subpages of each 64k page.
553
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000554config SCHED_SMT
555 bool "SMT (Hyperthreading) scheduler support"
556 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000557 help
558 SMT scheduler support improves the CPU scheduler's decision making
559 when dealing with POWER5 cpus at a cost of slightly increased
560 overhead in some places. If unsure say N here.
561
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000562config CMDLINE_BOOL
563 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000564
565config CMDLINE
566 string "Initial kernel command string"
567 depends on CMDLINE_BOOL
568 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
569 help
570 On some platforms, there is currently no way for the boot loader to
571 pass arguments to the kernel. For these platforms, you can supply
572 some command-line options at build time by entering them here. In
573 most cases you will need to specify the root device here.
574
Grant Likelyc356aa42008-07-09 09:41:52 -0600575config EXTRA_TARGETS
576 string "Additional default image types"
577 help
578 List additional targets to be built by the bootwrapper here (separated
579 by spaces). This is useful for targets that depend of device tree
580 files in the .dts directory.
581
582 Targets in this list will be build as part of the default build
583 target, or when the user does a 'make zImage' or a
584 'make zImage.initrd'.
585
586 If unsure, leave blank
587
Johannes Bergb28f5082008-01-15 23:17:00 -0500588config ARCH_WANTS_FREEZER_CONTROL
589 def_bool y
590 depends on ADB_PMU
591
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000592source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000593
594config SECCOMP
595 bool "Enable seccomp to safely compute untrusted bytecode"
596 depends on PROC_FS
597 default y
598 help
599 This kernel feature is useful for number crunching applications
600 that may need to compute untrusted bytecode during their
601 execution. By using pipes or other transports made available to
602 the process as file descriptors supporting the read/write
603 syscalls, it's possible to isolate those applications in
604 their own address space using seccomp. Once seccomp is
605 enabled via /proc/<pid>/seccomp, it cannot be disabled
606 and the task is only allowed to execute a few safe syscalls
607 defined by each seccomp mode.
608
609 If unsure, say Y. Only embedded should say N here.
610
611endmenu
612
613config ISA_DMA_API
614 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000615 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000616
617menu "Bus options"
618
619config ISA
620 bool "Support for ISA-bus hardware"
621 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000622 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000623 help
624 Find out whether you have ISA slots on your motherboard. ISA is the
625 name of a bus system, i.e. the way the CPU talks to the other stuff
626 inside your box. If you have an Apple machine, say N here; if you
627 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
628 you have an embedded board, consult your board documentation.
629
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800630config ZONE_DMA
631 bool
632 default y
633
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800634config NEED_DMA_MAP_STATE
635 def_bool (PPC64 || NOT_COHERENT_CACHE)
636
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700637config NEED_SG_DMA_LENGTH
638 def_bool y
639
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000640config GENERIC_ISA_DMA
641 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000642 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000643 default y
644
Paul Mackerras25635c72005-10-26 16:36:55 +1000645config PPC_INDIRECT_PCI
646 bool
647 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600648 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000649 default n
650
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000651config EISA
652 bool
653
654config SBUS
655 bool
656
Kumar Gala08264cb2006-01-10 21:43:56 -0600657config FSL_SOC
658 bool
holt@sgi.comb489da82011-08-16 17:32:24 +0000659 select HAVE_CAN_FLEXCAN if NET && CAN
Shawn Guo6d4ae2d2012-03-30 13:38:56 +0800660 select PPC_CLOCK
Kumar Gala08264cb2006-01-10 21:43:56 -0600661
Roy Zang55c44992007-07-10 18:44:34 +0800662config FSL_PCI
663 bool
664 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600665 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800666
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400667config FSL_PMC
668 bool
669 default y
670 depends on SUSPEND && (PPC_85xx || PPC_86xx)
671 help
672 Freescale MPC85xx/MPC86xx power management controller support
673 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
674
Victor Gallardod164f6d2010-10-08 10:25:27 +0000675config PPC4xx_CPM
676 bool
677 default y
678 depends on SUSPEND && (44x || 40x)
679 help
680 PPC4xx Clock Power Management (CPM) support (suspend/resume).
681 It also enables support for two different idle states (idle-wait
682 and idle-doze).
683
Stefan Roese2a706912008-03-26 22:39:50 +1100684config 4xx_SOC
685 bool
686
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400687config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800688 bool "Freescale Local Bus support"
689 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400690 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800691 Enables reporting of errors from the Freescale local bus
692 controller. Also contains some common code used by
693 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400694
Prabhakar Kushwahaa20cbde2011-12-27 17:39:13 +0530695config FSL_IFC
696 bool
697 depends on FSL_SOC
698
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400699config FSL_GTM
700 bool
701 depends on PPC_83xx || QUICC_ENGINE || CPM2
702 help
703 Freescale General-purpose Timers support
704
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000705# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
706config MCA
707 bool
708
John Rigbyb5005632008-06-26 11:07:56 -0600709# Platforms that what PCI turned unconditionally just do select PCI
710# in their config node. Platforms that want to choose at config
711# time should select PPC_PCI_CHOICE
712config PPC_PCI_CHOICE
713 bool
714
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000715config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600716 bool "PCI support" if PPC_PCI_CHOICE
717 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000718 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000719 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000720 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000721 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200722 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000723 help
724 Find out whether your system includes a PCI bus. PCI is the name of
725 a bus system, i.e. the way the CPU talks to the other stuff inside
726 your box. If you say Y here, the kernel will include drivers and
727 infrastructure code to support PCI bus devices.
728
729config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600730 def_bool PCI
731
732config PCI_SYSCALL
733 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000734
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000735config PCI_QSPAN
736 bool "QSpan PCI"
737 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000738 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000739 help
740 Say Y here if you have a system based on a Motorola 8xx-series
741 embedded processor with a QSPAN PCI interface, otherwise say N.
742
743config PCI_8260
744 bool
745 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000746 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000747 default y
748
749config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700750 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500751 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000752 default y
753
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500754source "drivers/pci/pcie/Kconfig"
755
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000756source "drivers/pci/Kconfig"
757
758source "drivers/pcmcia/Kconfig"
759
760source "drivers/pci/hotplug/Kconfig"
761
Zhang Weif1f389d2008-04-18 13:33:39 -0700762config HAS_RAPIDIO
763 bool
764 default n
765
766config RAPIDIO
767 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700768 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700769 help
770 If you say Y here, the kernel will include drivers and
771 infrastructure code to support RapidIO interconnect devices.
772
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700773config FSL_RIO
774 bool "Freescale Embedded SRIO Controller support"
775 depends on RAPIDIO && HAS_RAPIDIO
776 default "n"
777 ---help---
778 Include support for RapidIO controller on Freescale embedded
779 processors (MPC8548, MPC8641, etc).
780
Zhang Weif1f389d2008-04-18 13:33:39 -0700781source "drivers/rapidio/Kconfig"
782
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000783endmenu
784
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000785config NONSTATIC_KERNEL
786 bool
787 default n
788
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000789menu "Advanced setup"
790 depends on PPC32
791
792config ADVANCED_OPTIONS
793 bool "Prompt for advanced kernel configuration options"
794 help
795 This option will enable prompting for a variety of advanced kernel
796 configuration options. These options can cause the kernel to not
797 work if they are set incorrectly, but can be used to optimize certain
798 aspects of kernel memory management.
799
800 Unless you know what you are doing, say N here.
801
802comment "Default settings for advanced configuration options are used"
803 depends on !ADVANCED_OPTIONS
804
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000805config LOWMEM_SIZE_BOOL
806 bool "Set maximum low memory"
807 depends on ADVANCED_OPTIONS
808 help
809 This option allows you to set the maximum amount of memory which
810 will be used as "low memory", that is, memory which the kernel can
811 access directly, without having to set up a kernel virtual mapping.
812 This can be useful in optimizing the layout of kernel virtual
813 memory.
814
815 Say N here unless you know what you are doing.
816
817config LOWMEM_SIZE
818 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
819 default "0x30000000"
820
Trent Piepho96051462008-12-08 19:34:58 -0800821config LOWMEM_CAM_NUM_BOOL
822 bool "Set number of CAMs to use to map low memory"
823 depends on ADVANCED_OPTIONS && FSL_BOOKE
824 help
825 This option allows you to set the maximum number of CAM slots that
826 will be used to map low memory. There are a limited number of slots
827 available and even more limited number that will fit in the L1 MMU.
828 However, using more entries will allow mapping more low memory. This
829 can be useful in optimizing the layout of kernel virtual memory.
830
831 Say N here unless you know what you are doing.
832
833config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400834 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800835 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
836 default 3
837
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000838config DYNAMIC_MEMSTART
839 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000840 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000841 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000842 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000843 This option enables the kernel to be loaded at any page aligned
844 physical address. The kernel creates a mapping from KERNELBASE to
845 the address where the kernel is loaded. The page size here implies
846 the TLB page size of the mapping for kernel on the particular platform.
847 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000848
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000849 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
850 kernel image, where the only restriction is the page aligned kernel
851 load address. When this option is enabled, the compile time physical
852 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000853
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000854 This option is overridden by CONFIG_RELOCATABLE
855
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000856config RELOCATABLE
857 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000858 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000859 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000860 help
861 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000862 location the kernel is loaded at, without any alignment restrictions.
863 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000864
865 One use is for the kexec on panic case where the recovery kernel
866 must live at a different physical address than the primary
867 kernel.
868
869 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
870 it has been loaded at and the compile time physical addresses
871 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
872 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000873 load address of the kernel (eg. u-boot/mkimage).
874
875config RELOCATABLE_PPC32
876 def_bool y
877 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000878
879config PAGE_OFFSET_BOOL
880 bool "Set custom page offset address"
881 depends on ADVANCED_OPTIONS
882 help
883 This option allows you to set the kernel virtual address at which
884 the kernel will map low memory. This can be useful in optimizing
885 the virtual memory layout of the system.
886
887 Say N here unless you know what you are doing.
888
889config PAGE_OFFSET
890 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
891 default "0xc0000000"
892
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000893config KERNEL_START_BOOL
894 bool "Set custom kernel base address"
895 depends on ADVANCED_OPTIONS
896 help
897 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000898 the kernel will be loaded. Normally this should match PAGE_OFFSET
899 however there are times (like kdump) that one might not want them
900 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000901
902 Say N here unless you know what you are doing.
903
904config KERNEL_START
905 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000906 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000907 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000908 default "0xc0000000"
909
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000910config PHYSICAL_START_BOOL
911 bool "Set physical address where the kernel is loaded"
912 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
913 help
914 This gives the physical address where the kernel is loaded.
915
916 Say N here unless you know what you are doing.
917
918config PHYSICAL_START
919 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000920 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000921 default "0x00000000"
922
923config PHYSICAL_ALIGN
924 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800925 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000926 help
927 This value puts the alignment restrictions on physical address
928 where kernel is loaded and run from. Kernel is compiled for an
929 address which meets above alignment restriction.
930
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000931config TASK_SIZE_BOOL
932 bool "Set custom user task size"
933 depends on ADVANCED_OPTIONS
934 help
935 This option allows you to set the amount of virtual address space
936 allocated to user tasks. This can be useful in optimizing the
937 virtual memory layout of the system.
938
939 Say N here unless you know what you are doing.
940
941config TASK_SIZE
942 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500943 default "0x80000000" if PPC_PREP || PPC_8xx
944 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000945
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000946config CONSISTENT_SIZE_BOOL
947 bool "Set custom consistent memory pool size"
948 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
949 help
950 This option allows you to set the size of the
951 consistent memory pool. This pool of virtual memory
952 is used to make consistent memory allocations.
953
954config CONSISTENT_SIZE
955 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
956 default "0x00200000" if NOT_COHERENT_CACHE
957
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000958config PIN_TLB
959 bool "Pinned Kernel TLBs (860 ONLY)"
960 depends on ADVANCED_OPTIONS && 8xx
961endmenu
962
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000963if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000964config RELOCATABLE
965 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000966 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000967 help
968 This builds a kernel image that is capable of running anywhere
969 in the RMA (real memory area) at any 16k-aligned base address.
970 The kernel is linked as a position-independent executable (PIE)
971 and contains dynamic relocations which are processed early
972 in the bootup process.
973
974 One use is for the kexec on panic case where the recovery kernel
975 must live at a different physical address than the primary
976 kernel.
977
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000978config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000979 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000980 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000981config KERNEL_START
982 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000983 default "0xc000000000000000"
984config PHYSICAL_START
985 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000986 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000987endif
988
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000989source "net/Kconfig"
990
991source "drivers/Kconfig"
992
993source "fs/Kconfig"
994
Li Yang98658532006-10-03 23:10:46 -0500995source "arch/powerpc/sysdev/qe_lib/Kconfig"
996
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000997source "lib/Kconfig"
998
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000999source "arch/powerpc/Kconfig.debug"
1000
1001source "security/Kconfig"
1002
1003config KEYS_COMPAT
1004 bool
1005 depends on COMPAT && KEYS
1006 default y
1007
1008source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001009
1010config PPC_CLOCK
1011 bool
1012 default n
David Brownell9483a572008-07-23 21:26:48 -07001013 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001014
1015config PPC_LIB_RHEAP
1016 bool
1017
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001018source "arch/powerpc/kvm/Kconfig"