blob: 98e513b6270968b4f69736ce42f2e63522899ce1 [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
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000142
143config EARLY_PRINTK
144 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100145 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000146
147config COMPAT
148 bool
149 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800150 select COMPAT_BINFMT_ELF
Chris Metcalf48b25c42012-03-15 13:13:38 -0400151 select ARCH_WANT_OLD_COMPAT_IPC
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000152
153config SYSVIPC_COMPAT
154 bool
155 depends on COMPAT && SYSVIPC
156 default y
157
158# All PPC32s use generic nvram driver through ppc_md
159config GENERIC_NVRAM
160 bool
161 default y if PPC32
162
Ingo Molnarae1e9132008-11-11 09:05:16 +0100163config SCHED_OMIT_FRAME_POINTER
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000164 bool
165 default y
166
167config ARCH_MAY_HAVE_PC_FDC
168 bool
Stephen Rothwellbed59272007-03-04 17:04:44 +1100169 default !PPC_PSERIES || PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000170
Kumar Gala08264cb2006-01-10 21:43:56 -0600171config PPC_OF
172 def_bool y
173
174config PPC_UDBG_16550
175 bool
176 default n
177
Kumar Gala08264cb2006-01-10 21:43:56 -0600178config GENERIC_TBSYNC
179 bool
180 default y if PPC32 && SMP
181 default n
182
Al Viroe65e1fc2006-09-12 03:04:40 -0400183config AUDIT_ARCH
184 bool
185 default y
186
Jeremy Fitzhardinge73c9cea2006-12-08 03:30:41 -0800187config GENERIC_BUG
188 bool
189 default y
190 depends on BUG
191
Johannes Bergb3028872007-03-20 05:18:02 +1100192config SYS_SUPPORTS_APM_EMULATION
Kumar Gala58da10b2007-05-23 09:51:46 -0500193 default y if PMAC_APM_EMU
Johannes Bergb3028872007-03-20 05:18:02 +1100194 bool
195
David Gibson6c5b59b2011-04-14 18:29:16 +0000196config EPAPR_BOOT
197 bool
198 help
199 Used to allow a board to specify it wants an ePAPR compliant wrapper.
200 default n
201
Kumar Galaf4fc4a52006-01-16 10:53:22 -0600202config DEFAULT_UIMAGE
203 bool
204 help
205 Used to allow a board to specify it wants a uImage built by default
206 default n
207
Scott Woodb09c1642008-01-17 16:31:40 -0600208config REDBOOT
209 bool
210
Johannes Berg801e4062007-12-08 02:12:39 +0100211config ARCH_HIBERNATION_POSSIBLE
212 bool
Johannes Berg543b9fd2007-05-03 22:31:38 +1000213 default y
214
Johannes Bergf4cb5702007-12-08 02:14:00 +0100215config ARCH_SUSPEND_POSSIBLE
216 def_bool y
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400217 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
Kumar Galae5462d12011-04-08 04:20:54 -0500218 (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
Johannes Bergf4cb5702007-12-08 02:14:00 +0100219
Benjamin Herrenschmidt4c75a6f2006-11-11 17:24:53 +1100220config PPC_DCR_NATIVE
221 bool
222 default n
223
224config PPC_DCR_MMIO
225 bool
226 default n
227
228config PPC_DCR
229 bool
230 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
231 default y
232
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100233config PPC_OF_PLATFORM_PCI
234 bool
Stephen Rothwell373a6da2007-12-21 15:37:07 +1100235 depends on PCI
Benjamin Herrenschmidt4c9d2802006-11-11 17:25:08 +1100236 depends on PPC64 # not supported on 32 bits yet
237 default n
238
Akinobu Mita6a11f752009-03-31 15:23:17 -0700239config ARCH_SUPPORTS_DEBUG_PAGEALLOC
240 def_bool y
241
Ananth N Mavinakayanahalli8b7b80b2012-08-23 21:31:32 +0000242config ARCH_SUPPORTS_UPROBES
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
285source kernel/Kconfig.hz
286source kernel/Kconfig.preempt
287source "fs/Kconfig.binfmt"
288
Mel Gormanba72cb82007-11-28 16:21:13 -0800289config HUGETLB_PAGE_SIZE_VARIABLE
290 bool
291 depends on HUGETLB_PAGE
292 default y
293
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000294config MATH_EMULATION
295 bool "Math emulation"
Kumar Gala4d527192007-01-26 00:23:34 -0600296 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000297 ---help---
298 Some PowerPC chips designed for embedded applications do not have
299 a floating-point unit and therefore do not implement the
300 floating-point instructions in the PowerPC instruction set. If you
301 say Y here, the kernel will include code to emulate a floating-point
302 unit, which will allow programs that use floating-point
303 instructions to run.
304
Scott Wood5dd57a12007-09-18 15:29:35 -0500305config 8XX_MINIMAL_FPEMU
306 bool "Minimal math emulation for 8xx"
307 depends on 8xx && !MATH_EMULATION
308 help
309 Older arch/ppc kernels still emulated a few floating point
310 instructions such as load and store, even when full math
311 emulation is disabled. Say "Y" here if you want to preserve
312 this behavior.
313
314 It is recommended that you build a soft-float userspace instead.
315
FUJITA Tomonorifb3475e2008-02-04 22:28:08 -0800316config IOMMU_HELPER
317 def_bool PPC64
318
Becky Bruceec3cf2e2009-05-14 12:42:28 +0000319config SWIOTLB
320 bool "SWIOTLB support"
321 default n
322 select IOMMU_HELPER
323 ---help---
324 Support for IO bounce buffering for systems without an IOMMU.
325 This allows us to DMA to the full physical address space on
326 platforms where the size of a physical address is larger
327 than the bus address. Not all platforms support this.
328
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000329config HOTPLUG_CPU
330 bool "Support for enabling/disabling CPUs"
Benjamin Herrenschmidt344eb012011-09-19 17:44:54 +0000331 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000332 ---help---
333 Say Y here to be able to disable and re-enable individual
334 CPUs at runtime on SMP machines.
335
336 Say N if you are unsure.
337
Nathan Fontenot12633e82009-11-25 17:23:25 +0000338config ARCH_CPU_PROBE_RELEASE
339 def_bool y
340 depends on HOTPLUG_CPU
341
Yasunori Gotocc576372006-06-29 02:24:27 -0700342config ARCH_ENABLE_MEMORY_HOTPLUG
343 def_bool y
344
Badari Pulavartya99824f2008-02-05 00:10:18 -0800345config ARCH_HAS_WALK_MEMORY
346 def_bool y
347
Badari Pulavarty14824712008-02-05 00:10:17 -0800348config ARCH_ENABLE_MEMORY_HOTREMOVE
349 def_bool y
350
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000351config KEXEC
352 bool "kexec system call (EXPERIMENTAL)"
Suzuki Poulose68343022012-04-15 22:27:18 +0000353 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) && EXPERIMENTAL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000354 help
355 kexec is a system call that implements the ability to shutdown your
356 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400357 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000358 you can start any kernel with it, not just Linux.
359
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400360 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000361
362 It is an ongoing process to be certain the hardware in a machine
363 is properly shutdown, so do not be surprised if this code does not
364 initially work for you. It may help to enable device hotplugging
365 support. As of this writing the exact hardware interface is
366 strongly in flux, so no good recommendation can be made.
367
Haren Mynenie8625d462006-01-14 13:48:25 -0800368config CRASH_DUMP
Bernhard Walle3420b5d2008-06-27 03:02:15 +1000369 bool "Build a kdump crash kernel"
Suzuki Poulose47da4212012-04-15 22:27:35 +0000370 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
Suzuki Poulose5b2e4782011-12-14 22:59:37 +0000371 select RELOCATABLE if PPC64 || 44x
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000372 select DYNAMIC_MEMSTART if FSL_BOOKE
Haren Mynenie8625d462006-01-14 13:48:25 -0800373 help
374 Build a kernel suitable for use as a kdump capture kernel.
Mohan Kumar M54622f12008-10-21 17:38:10 +0000375 The same kernel binary can be used as production kernel and dump
376 capture kernel.
Haren Mynenie8625d462006-01-14 13:48:25 -0800377
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000378config FA_DUMP
379 bool "Firmware-assisted dump"
380 depends on PPC64 && PPC_RTAS && CRASH_DUMP
Manish Ahuja242f2712008-03-22 10:50:50 +1100381 help
Mahesh Salgaonkareb39c882012-02-16 01:14:22 +0000382 A robust mechanism to get reliable kernel crash dump with
383 assistance from firmware. This approach does not use kexec,
384 instead firmware assists in booting the kdump kernel
385 while preserving memory contents. Firmware-assisted dump
386 is meant to be a kdump replacement offering robustness and
387 speed not possible without system firmware assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100388
389 If unsure, say "N"
390
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000391config IRQ_ALL_CPUS
392 bool "Distribute interrupts on all CPUs by default"
393 depends on SMP && !MV64360
394 help
395 This option gives the kernel permission to distribute IRQs across
396 multiple CPUs. Saying N here will route all IRQs to the first
397 CPU. Generally saying Y is safe, although some problems have been
398 reported with SMP Power Macintoshes with this option enabled.
399
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700400config NUMA
401 bool "NUMA support"
402 depends on PPC64
403 default y if SMP && PPC_PSERIES
404
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700405config NODES_SHIFT
406 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000407 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700408 default "4"
409 depends on NEED_MULTIPLE_NODES
410
Anton Blanchardea55bf22009-09-21 19:56:43 +0000411config MAX_ACTIVE_REGIONS
412 int
413 default "256" if PPC64
414 default "32"
415
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000416config ARCH_SELECT_MEMORY_MODEL
417 def_bool y
418 depends on PPC64
419
420config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000421 def_bool y
422 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000423
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000424config ARCH_SPARSEMEM_ENABLE
425 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000426 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700427 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100428
429config ARCH_SPARSEMEM_DEFAULT
430 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100431 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000432
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100433config SYS_SUPPORTS_HUGETLBFS
Becky Bruce41151e72011-06-28 09:54:48 +0000434 bool
Benjamin Herrenschmidt5a1eb5c2009-10-30 15:03:54 +1100435
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700436source "mm/Kconfig"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000437
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800438config ARCH_MEMORY_PROBE
439 def_bool y
440 depends on MEMORY_HOTPLUG
441
Andy Whitcroft75167952006-10-21 10:24:14 -0700442# Some NUMA nodes have memory ranges that span
443# other nodes. Even though a pfn is valid and
444# between a node's start and end pfns, it may not
445# reside on that node. See memmap_init_zone()
446# for details.
447config NODES_SPAN_OTHER_NODES
448 def_bool y
449 depends on NEED_MULTIPLE_NODES
450
Benjamin Herrenschmidt16c2d472007-05-08 16:27:28 +1000451config PPC_HAS_HASH_64K
452 bool
453 depends on PPC64
454 default n
455
Yuri Tikhonove1240122009-01-29 01:40:44 +0000456config STDBINUTILS
457 bool "Using standard binutils settings"
458 depends on 44x
459 default y
460 help
461 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
462 Note, that kernel will be able to run only those applications,
463 which had been compiled using binutils later than 2.17.50.0.3 with
464 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
465 the older binutils, you can patch them with a trivial patch, which
466 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
467
Ilya Yanokca9153a2008-12-11 04:55:41 +0300468choice
469 prompt "Page size"
470 default PPC_4K_PAGES
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100471 help
Ilya Yanokca9153a2008-12-11 04:55:41 +0300472 Select the kernel logical page size. Increasing the page size
473 will reduce software overhead at each page boundary, allow
474 hardware prefetch mechanisms to be more effective, and allow
475 larger dma transfers increasing IO efficiency and reducing
476 overhead. However the utilization of memory will increase.
477 For example, each cached file will using a multiple of the
478 page size to hold its contents and the difference between the
479 end of file and the end of page is wasted.
480
481 Some dedicated systems, such as software raid serving with
482 accelerated calculations, have shown significant increases.
483
484 If you configure a 64 bit kernel for 64k pages but the
485 processor does not support them, then the kernel will simulate
486 them with 4k pages, loading them on demand, but with the
487 reduced software overhead and larger internal fragmentation.
488 For the 32 bit kernel, a large page option will not be offered
489 unless it is supported by the configured processor.
490
491 If unsure, choose 4K_PAGES.
492
493config PPC_4K_PAGES
494 bool "4k page size"
495
496config PPC_16K_PAGES
497 bool "16k page size" if 44x
498
499config PPC_64K_PAGES
Benjamin Herrenschmidt2d27cfd2009-07-23 23:15:59 +0000500 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
Ilya Yanokca9153a2008-12-11 04:55:41 +0300501 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
502
Yuri Tikhonove1240122009-01-29 01:40:44 +0000503config PPC_256K_PAGES
504 bool "256k page size" if 44x
Hugh Dickinsadf213c2009-04-06 11:01:15 +0000505 depends on !STDBINUTILS
Yuri Tikhonove1240122009-01-29 01:40:44 +0000506 help
507 Make the page size 256k.
508
509 As the ELF standard only requires alignment to support page
510 sizes up to 64k, you will need to compile all of your user
511 space applications with a non-standard binutils settings
512 (see the STDBINUTILS description for details).
513
514 Say N unless you know what you are doing.
515
Ilya Yanokca9153a2008-12-11 04:55:41 +0300516endchoice
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100517
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000518config FORCE_MAX_ZONEORDER
519 int "Maximum zone order"
Benjamin Herrenschmidt066c4b82009-07-21 15:25:53 +0000520 range 9 64 if PPC64 && PPC_64K_PAGES
521 default "9" if PPC64 && PPC_64K_PAGES
522 range 13 64 if PPC64 && !PPC_64K_PAGES
523 default "13" if PPC64 && !PPC_64K_PAGES
524 range 9 64 if PPC32 && PPC_16K_PAGES
525 default "9" if PPC32 && PPC_16K_PAGES
526 range 7 64 if PPC32 && PPC_64K_PAGES
527 default "7" if PPC32 && PPC_64K_PAGES
528 range 5 64 if PPC32 && PPC_256K_PAGES
529 default "5" if PPC32 && PPC_256K_PAGES
Johannes Bergebe40c52008-09-24 04:29:08 +0000530 range 11 64
Stephen Rothwell53bcddb2008-04-11 11:11:56 +1000531 default "11"
532 help
533 The kernel memory allocator divides physically contiguous memory
534 blocks into "zones", where each zone is a power of two number of
535 pages. This option selects the largest power of two that the kernel
536 keeps in the memory allocator. If you need to allocate very large
537 blocks of physically contiguous memory, then you may need to
538 increase this value.
539
540 This config option is actually maximum order plus one. For example,
541 a value of 11 means that the largest free memory block is 2^10 pages.
542
543 The page size is not necessarily 4KB. For example, on 64-bit
544 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
545 this in mind when choosing a value for this option.
546
Paul Mackerrasfa282372008-01-24 08:35:13 +1100547config PPC_SUBPAGE_PROT
548 bool "Support setting protections for 4k subpages"
Ilya Yanokca9153a2008-12-11 04:55:41 +0300549 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
Paul Mackerrasfa282372008-01-24 08:35:13 +1100550 help
551 This option adds support for a system call to allow user programs
552 to set access permissions (read/write, readonly, or no access)
553 on the 4k subpages of each 64k page.
554
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000555config SCHED_SMT
556 bool "SMT (Hyperthreading) scheduler support"
557 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000558 help
559 SMT scheduler support improves the CPU scheduler's decision making
560 when dealing with POWER5 cpus at a cost of slightly increased
561 overhead in some places. If unsure say N here.
562
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000563config CMDLINE_BOOL
564 bool "Default bootloader kernel arguments"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000565
566config CMDLINE
567 string "Initial kernel command string"
568 depends on CMDLINE_BOOL
569 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
570 help
571 On some platforms, there is currently no way for the boot loader to
572 pass arguments to the kernel. For these platforms, you can supply
573 some command-line options at build time by entering them here. In
574 most cases you will need to specify the root device here.
575
Grant Likelyc356aa42008-07-09 09:41:52 -0600576config EXTRA_TARGETS
577 string "Additional default image types"
578 help
579 List additional targets to be built by the bootwrapper here (separated
580 by spaces). This is useful for targets that depend of device tree
581 files in the .dts directory.
582
583 Targets in this list will be build as part of the default build
584 target, or when the user does a 'make zImage' or a
585 'make zImage.initrd'.
586
587 If unsure, leave blank
588
Johannes Bergb28f5082008-01-15 23:17:00 -0500589config ARCH_WANTS_FREEZER_CONTROL
590 def_bool y
591 depends on ADB_PMU
592
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000593source kernel/power/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000594
595config SECCOMP
596 bool "Enable seccomp to safely compute untrusted bytecode"
597 depends on PROC_FS
598 default y
599 help
600 This kernel feature is useful for number crunching applications
601 that may need to compute untrusted bytecode during their
602 execution. By using pipes or other transports made available to
603 the process as file descriptors supporting the read/write
604 syscalls, it's possible to isolate those applications in
605 their own address space using seccomp. Once seccomp is
606 enabled via /proc/<pid>/seccomp, it cannot be disabled
607 and the task is only allowed to execute a few safe syscalls
608 defined by each seccomp mode.
609
610 If unsure, say Y. Only embedded should say N here.
611
612endmenu
613
614config ISA_DMA_API
615 bool
Stephen Rothwell3d066d72012-02-22 14:10:12 +0000616 default PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000617
618menu "Bus options"
619
620config ISA
621 bool "Support for ISA-bus hardware"
622 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000623 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000624 help
625 Find out whether you have ISA slots on your motherboard. ISA is the
626 name of a bus system, i.e. the way the CPU talks to the other stuff
627 inside your box. If you have an Apple machine, say N here; if you
628 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
629 you have an embedded board, consult your board documentation.
630
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800631config ZONE_DMA
632 bool
633 default y
634
FUJITA Tomonoriaf407c62010-03-10 15:23:27 -0800635config NEED_DMA_MAP_STATE
636 def_bool (PPC64 || NOT_COHERENT_CACHE)
637
FUJITA Tomonorie32205e2010-05-26 14:44:33 -0700638config NEED_SG_DMA_LENGTH
639 def_bool y
640
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000641config GENERIC_ISA_DMA
642 bool
Anton Vorontsov19274452010-07-15 07:38:16 +0000643 depends on ISA_DMA_API
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000644 default y
645
Paul Mackerras25635c72005-10-26 16:36:55 +1000646config PPC_INDIRECT_PCI
647 bool
648 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600649 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000650 default n
651
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000652config EISA
653 bool
654
655config SBUS
656 bool
657
Kumar Gala08264cb2006-01-10 21:43:56 -0600658config FSL_SOC
659 bool
holt@sgi.comb489da82011-08-16 17:32:24 +0000660 select HAVE_CAN_FLEXCAN if NET && CAN
Shawn Guo6d4ae2d2012-03-30 13:38:56 +0800661 select PPC_CLOCK
Kumar Gala08264cb2006-01-10 21:43:56 -0600662
Roy Zang55c44992007-07-10 18:44:34 +0800663config FSL_PCI
664 bool
665 select PPC_INDIRECT_PCI
Kumar Galad0839112009-01-28 13:25:29 -0600666 select PCI_QUIRKS
Roy Zang55c44992007-07-10 18:44:34 +0800667
Anton Vorontsov4ffd6952009-09-16 01:43:57 +0400668config FSL_PMC
669 bool
670 default y
671 depends on SUSPEND && (PPC_85xx || PPC_86xx)
672 help
673 Freescale MPC85xx/MPC86xx power management controller support
674 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
675
Victor Gallardod164f6d2010-10-08 10:25:27 +0000676config PPC4xx_CPM
677 bool
678 default y
679 depends on SUSPEND && (44x || 40x)
680 help
681 PPC4xx Clock Power Management (CPM) support (suspend/resume).
682 It also enables support for two different idle states (idle-wait
683 and idle-doze).
684
Stefan Roese2a706912008-03-26 22:39:50 +1100685config 4xx_SOC
686 bool
687
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400688config FSL_LBC
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800689 bool "Freescale Local Bus support"
690 depends on FSL_SOC
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400691 help
Roy Zang3ab8f2a2010-10-18 15:22:31 +0800692 Enables reporting of errors from the Freescale local bus
693 controller. Also contains some common code used by
694 drivers for specific local bus peripherals.
Anton Vorontsovacaa7aa2008-04-11 21:03:40 +0400695
Prabhakar Kushwahaa20cbdef2011-12-27 17:39:13 +0530696config FSL_IFC
697 bool
698 depends on FSL_SOC
699
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400700config FSL_GTM
701 bool
702 depends on PPC_83xx || QUICC_ENGINE || CPM2
703 help
704 Freescale General-purpose Timers support
705
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000706# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
707config MCA
708 bool
709
John Rigbyb5005632008-06-26 11:07:56 -0600710# Platforms that what PCI turned unconditionally just do select PCI
711# in their config node. Platforms that want to choose at config
712# time should select PPC_PCI_CHOICE
713config PPC_PCI_CHOICE
714 bool
715
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000716config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600717 bool "PCI support" if PPC_PCI_CHOICE
718 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000719 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000720 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000721 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000722 select ARCH_SUPPORTS_MSI
Michael S. Tsirkin335b8cf2011-11-24 21:06:41 +0200723 select GENERIC_PCI_IOMAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000724 help
725 Find out whether your system includes a PCI bus. PCI is the name of
726 a bus system, i.e. the way the CPU talks to the other stuff inside
727 your box. If you say Y here, the kernel will include drivers and
728 infrastructure code to support PCI bus devices.
729
730config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600731 def_bool PCI
732
733config PCI_SYSCALL
734 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000735
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000736config PCI_QSPAN
737 bool "QSpan PCI"
738 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000739 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000740 help
741 Say Y here if you have a system based on a Motorola 8xx-series
742 embedded processor with a QSPAN PCI interface, otherwise say N.
743
744config PCI_8260
745 bool
746 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000747 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000748 default y
749
750config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700751 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500752 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000753 default y
754
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500755source "drivers/pci/pcie/Kconfig"
756
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000757source "drivers/pci/Kconfig"
758
759source "drivers/pcmcia/Kconfig"
760
761source "drivers/pci/hotplug/Kconfig"
762
Zhang Weif1f389d2008-04-18 13:33:39 -0700763config HAS_RAPIDIO
764 bool
765 default n
766
767config RAPIDIO
768 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700769 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700770 help
771 If you say Y here, the kernel will include drivers and
772 infrastructure code to support RapidIO interconnect devices.
773
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700774config FSL_RIO
775 bool "Freescale Embedded SRIO Controller support"
776 depends on RAPIDIO && HAS_RAPIDIO
777 default "n"
778 ---help---
779 Include support for RapidIO controller on Freescale embedded
780 processors (MPC8548, MPC8641, etc).
781
Zhang Weif1f389d2008-04-18 13:33:39 -0700782source "drivers/rapidio/Kconfig"
783
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000784endmenu
785
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000786config NONSTATIC_KERNEL
787 bool
788 default n
789
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000790menu "Advanced setup"
791 depends on PPC32
792
793config ADVANCED_OPTIONS
794 bool "Prompt for advanced kernel configuration options"
795 help
796 This option will enable prompting for a variety of advanced kernel
797 configuration options. These options can cause the kernel to not
798 work if they are set incorrectly, but can be used to optimize certain
799 aspects of kernel memory management.
800
801 Unless you know what you are doing, say N here.
802
803comment "Default settings for advanced configuration options are used"
804 depends on !ADVANCED_OPTIONS
805
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000806config LOWMEM_SIZE_BOOL
807 bool "Set maximum low memory"
808 depends on ADVANCED_OPTIONS
809 help
810 This option allows you to set the maximum amount of memory which
811 will be used as "low memory", that is, memory which the kernel can
812 access directly, without having to set up a kernel virtual mapping.
813 This can be useful in optimizing the layout of kernel virtual
814 memory.
815
816 Say N here unless you know what you are doing.
817
818config LOWMEM_SIZE
819 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
820 default "0x30000000"
821
Trent Piepho96051462008-12-08 19:34:58 -0800822config LOWMEM_CAM_NUM_BOOL
823 bool "Set number of CAMs to use to map low memory"
824 depends on ADVANCED_OPTIONS && FSL_BOOKE
825 help
826 This option allows you to set the maximum number of CAM slots that
827 will be used to map low memory. There are a limited number of slots
828 available and even more limited number that will fit in the L1 MMU.
829 However, using more entries will allow mapping more low memory. This
830 can be useful in optimizing the layout of kernel virtual memory.
831
832 Say N here unless you know what you are doing.
833
834config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400835 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800836 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
837 default 3
838
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000839config DYNAMIC_MEMSTART
840 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000841 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000842 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000843 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000844 This option enables the kernel to be loaded at any page aligned
845 physical address. The kernel creates a mapping from KERNELBASE to
846 the address where the kernel is loaded. The page size here implies
847 the TLB page size of the mapping for kernel on the particular platform.
848 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000849
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000850 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
851 kernel image, where the only restriction is the page aligned kernel
852 load address. When this option is enabled, the compile time physical
853 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000854
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000855 This option is overridden by CONFIG_RELOCATABLE
856
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000857config RELOCATABLE
858 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000859 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000860 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000861 help
862 This builds a kernel image that is capable of running at the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000863 location the kernel is loaded at, without any alignment restrictions.
864 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000865
866 One use is for the kexec on panic case where the recovery kernel
867 must live at a different physical address than the primary
868 kernel.
869
870 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
871 it has been loaded at and the compile time physical addresses
872 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
873 setting can still be useful to bootwrappers that need to know the
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000874 load address of the kernel (eg. u-boot/mkimage).
875
876config RELOCATABLE_PPC32
877 def_bool y
878 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000879
880config PAGE_OFFSET_BOOL
881 bool "Set custom page offset address"
882 depends on ADVANCED_OPTIONS
883 help
884 This option allows you to set the kernel virtual address at which
885 the kernel will map low memory. This can be useful in optimizing
886 the virtual memory layout of the system.
887
888 Say N here unless you know what you are doing.
889
890config PAGE_OFFSET
891 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
892 default "0xc0000000"
893
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000894config KERNEL_START_BOOL
895 bool "Set custom kernel base address"
896 depends on ADVANCED_OPTIONS
897 help
898 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000899 the kernel will be loaded. Normally this should match PAGE_OFFSET
900 however there are times (like kdump) that one might not want them
901 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000902
903 Say N here unless you know what you are doing.
904
905config KERNEL_START
906 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000907 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000908 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000909 default "0xc0000000"
910
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000911config PHYSICAL_START_BOOL
912 bool "Set physical address where the kernel is loaded"
913 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
914 help
915 This gives the physical address where the kernel is loaded.
916
917 Say N here unless you know what you are doing.
918
919config PHYSICAL_START
920 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000921 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000922 default "0x00000000"
923
924config PHYSICAL_ALIGN
925 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800926 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000927 help
928 This value puts the alignment restrictions on physical address
929 where kernel is loaded and run from. Kernel is compiled for an
930 address which meets above alignment restriction.
931
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000932config TASK_SIZE_BOOL
933 bool "Set custom user task size"
934 depends on ADVANCED_OPTIONS
935 help
936 This option allows you to set the amount of virtual address space
937 allocated to user tasks. This can be useful in optimizing the
938 virtual memory layout of the system.
939
940 Say N here unless you know what you are doing.
941
942config TASK_SIZE
943 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500944 default "0x80000000" if PPC_PREP || PPC_8xx
945 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000946
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000947config CONSISTENT_SIZE_BOOL
948 bool "Set custom consistent memory pool size"
949 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
950 help
951 This option allows you to set the size of the
952 consistent memory pool. This pool of virtual memory
953 is used to make consistent memory allocations.
954
955config CONSISTENT_SIZE
956 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
957 default "0x00200000" if NOT_COHERENT_CACHE
958
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000959config PIN_TLB
960 bool "Pinned Kernel TLBs (860 ONLY)"
961 depends on ADVANCED_OPTIONS && 8xx
962endmenu
963
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000964if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000965config RELOCATABLE
966 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000967 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000968 help
969 This builds a kernel image that is capable of running anywhere
970 in the RMA (real memory area) at any 16k-aligned base address.
971 The kernel is linked as a position-independent executable (PIE)
972 and contains dynamic relocations which are processed early
973 in the bootup process.
974
975 One use is for the kexec on panic case where the recovery kernel
976 must live at a different physical address than the primary
977 kernel.
978
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000979config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000980 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000981 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000982config KERNEL_START
983 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000984 default "0xc000000000000000"
985config PHYSICAL_START
986 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000987 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000988endif
989
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000990source "net/Kconfig"
991
992source "drivers/Kconfig"
993
994source "fs/Kconfig"
995
Li Yang98658532006-10-03 23:10:46 -0500996source "arch/powerpc/sysdev/qe_lib/Kconfig"
997
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000998source "lib/Kconfig"
999
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001000source "arch/powerpc/Kconfig.debug"
1001
1002source "security/Kconfig"
1003
1004config KEYS_COMPAT
1005 bool
1006 depends on COMPAT && KEYS
1007 default y
1008
1009source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001010
1011config PPC_CLOCK
1012 bool
1013 default n
David Brownell9483a572008-07-23 21:26:48 -07001014 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001015
1016config PPC_LIB_RHEAP
1017 bool
1018
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001019source "arch/powerpc/kvm/Kconfig"