blob: 83b1780a3bdcd344e6f9d1d7b2767fafe3e230cd [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
FUJITA Tomonori46bab4e2009-08-04 19:08:26 +0000124 select HAVE_DMA_ATTRS
FUJITA Tomonori80d3e8a2009-08-04 19:08:28 +0000125 select HAVE_DMA_API_DEBUG
Jens Axboeb7d7a242008-06-26 11:22:13 +0200126 select USE_GENERIC_SMP_HELPERS if SMP
Steven Rostedt4e491d12008-05-14 23:49:44 -0400127 select HAVE_OPROFILE
Benjamin Herrenschmidtee6a0932009-01-14 14:14:00 +0100128 select HAVE_SYSCALL_WRAPPERS if PPC64
Paul Mackerrasc2e95c62009-06-12 21:10:41 +0000129 select GENERIC_ATOMIC64 if PPC32
Peter Zijlstrae360adb2010-10-14 14:01:34 +0800130 select HAVE_IRQ_WORK
Ingo Molnarcdd6c482009-09-21 12:02:48 +0200131 select HAVE_PERF_EVENTS
Mahesh Salgaonkar359e4282010-04-07 18:10:20 +1000132 select HAVE_REGS_AND_STACK_ACCESS_API
K.Prasad5aae8a52010-06-15 11:35:19 +0530133 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
Thomas Gleixner26043622011-01-19 20:39:39 +0100134 select HAVE_GENERIC_HARDIRQS
135 select HAVE_SPARSE_IRQ
136 select IRQ_PER_CPU
Thomas Gleixner433c9c62011-03-25 17:04:59 +0100137 select GENERIC_IRQ_SHOW
138 select GENERIC_IRQ_SHOW_LEVEL
Thomas Gleixnere8d2c472011-10-05 02:30:51 +0000139 select IRQ_FORCED_THREADING
Peter Zijlstra26723912011-05-24 17:12:00 -0700140 select HAVE_RCU_TABLE_FREE if SMP
Ian Munsie02424d82011-02-02 17:27:24 +0000141 select HAVE_SYSCALL_TRACEPOINTS
David S. Miller368940d2011-07-21 23:26:13 -0700142 select HAVE_BPF_JIT if (PPC64 && NET)
Michael Ellermanac5f89c2011-06-29 19:16:59 +0000143 select HAVE_ARCH_JUMP_LABEL
Huang Yingdf013ff2011-07-13 13:14:22 +0800144 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000145
146config EARLY_PRINTK
147 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +1100148 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000149
150config COMPAT
151 bool
152 default y if PPC64
Roland McGrath01e31db2008-01-02 17:03:11 -0800153 select COMPAT_BINFMT_ELF
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
Tony Breeds1ad74992007-09-21 13:26:03 +1000284source kernel/time/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000285source 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 Poulosebbc24a22011-11-14 16:43:50 +0000353 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && 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 Poulose5b2e4782011-12-14 22:59:37 +0000370 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
371 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
Manish Ahuja242f2712008-03-22 10:50:50 +1100378config PHYP_DUMP
379 bool "Hypervisor-assisted dump (EXPERIMENTAL)"
380 depends on PPC_PSERIES && EXPERIMENTAL
381 help
382 Hypervisor-assisted dump is meant to be a kdump replacement
383 offering robustness and speed not possible without system
Matt LaPlante692105b2009-01-26 11:12:25 +0100384 hypervisor assistance.
Manish Ahuja242f2712008-03-22 10:50:50 +1100385
386 If unsure, say "N"
387
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000388config IRQ_ALL_CPUS
389 bool "Distribute interrupts on all CPUs by default"
390 depends on SMP && !MV64360
391 help
392 This option gives the kernel permission to distribute IRQs across
393 multiple CPUs. Saying N here will route all IRQs to the first
394 CPU. Generally saying Y is safe, although some problems have been
395 reported with SMP Power Macintoshes with this option enabled.
396
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700397config NUMA
398 bool "NUMA support"
399 depends on PPC64
400 default y if SMP && PPC_PSERIES
401
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700402config NODES_SHIFT
403 int
Anton Blanchardea55bf22009-09-21 19:56:43 +0000404 default "8" if PPC64
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700405 default "4"
406 depends on NEED_MULTIPLE_NODES
407
Anton Blanchardea55bf22009-09-21 19:56:43 +0000408config MAX_ACTIVE_REGIONS
409 int
410 default "256" if PPC64
411 default "32"
412
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000413config ARCH_SELECT_MEMORY_MODEL
414 def_bool y
415 depends on PPC64
416
417config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000418 def_bool y
419 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000420
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000421config ARCH_SPARSEMEM_ENABLE
422 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000423 depends on PPC64
Andy Whitcroftd29eff72007-10-16 01:24:17 -0700424 select SPARSEMEM_VMEMMAP_ENABLE
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100425
426config ARCH_SPARSEMEM_DEFAULT
427 def_bool y
Benjamin Herrenschmidt78bde532007-02-13 11:46:06 +1100428 depends on (SMP && PPC_PSERIES) || PPC_PS3
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000429
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700430config ARCH_POPULATES_NODE_MAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000431 def_bool y
Mel Gormanc67c3cb2006-09-27 01:49:49 -0700432
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 Rothwell373a6da2007-12-21 15:37:07 +1100616 default !PPC_ISERIES || 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
661 select PPC_CLOCK if CAN_FLEXCAN
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
Anton Vorontsov83ff9dc2008-05-23 20:38:54 +0400696config FSL_GTM
697 bool
698 depends on PPC_83xx || QUICC_ENGINE || CPM2
699 help
700 Freescale General-purpose Timers support
701
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000702# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
703config MCA
704 bool
705
John Rigbyb5005632008-06-26 11:07:56 -0600706# Platforms that what PCI turned unconditionally just do select PCI
707# in their config node. Platforms that want to choose at config
708# time should select PPC_PCI_CHOICE
709config PPC_PCI_CHOICE
710 bool
711
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000712config PCI
John Rigbyb5005632008-06-26 11:07:56 -0600713 bool "PCI support" if PPC_PCI_CHOICE
714 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
Albert Herranzbcc48592009-12-12 06:31:39 +0000715 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
David Gibsonf21f49e2007-06-13 14:52:54 +1000716 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000717 default PCI_QSPAN if !4xx && !CPM2 && 8xx
Michael Ellermandf87ef52007-05-08 12:58:34 +1000718 select ARCH_SUPPORTS_MSI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000719 help
720 Find out whether your system includes a PCI bus. PCI is the name of
721 a bus system, i.e. the way the CPU talks to the other stuff inside
722 your box. If you say Y here, the kernel will include drivers and
723 infrastructure code to support PCI bus devices.
724
725config PCI_DOMAINS
Matthew Wilcox36e23592007-07-10 10:54:40 -0600726 def_bool PCI
727
728config PCI_SYSCALL
729 def_bool PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000730
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000731config PCI_QSPAN
732 bool "QSpan PCI"
733 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000734 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000735 help
736 Say Y here if you have a system based on a Motorola 8xx-series
737 embedded processor with a QSPAN PCI interface, otherwise say N.
738
739config PCI_8260
740 bool
741 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000742 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000743 default y
744
745config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700746 bool "Enable workaround for MPC826x erratum PCI 9"
Scott Woode00c5492007-09-14 15:41:56 -0500747 depends on PCI_8260 && !8272
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000748 default y
749
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500750source "drivers/pci/pcie/Kconfig"
751
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000752source "drivers/pci/Kconfig"
753
754source "drivers/pcmcia/Kconfig"
755
756source "drivers/pci/hotplug/Kconfig"
757
Zhang Weif1f389d2008-04-18 13:33:39 -0700758config HAS_RAPIDIO
759 bool
760 default n
761
762config RAPIDIO
763 bool "RapidIO support"
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700764 depends on HAS_RAPIDIO || PCI
Zhang Weif1f389d2008-04-18 13:33:39 -0700765 help
766 If you say Y here, the kernel will include drivers and
767 infrastructure code to support RapidIO interconnect devices.
768
Alexandre Bounine388b78a2011-03-23 16:43:03 -0700769config FSL_RIO
770 bool "Freescale Embedded SRIO Controller support"
771 depends on RAPIDIO && HAS_RAPIDIO
772 default "n"
773 ---help---
774 Include support for RapidIO controller on Freescale embedded
775 processors (MPC8548, MPC8641, etc).
776
Zhang Weif1f389d2008-04-18 13:33:39 -0700777source "drivers/rapidio/Kconfig"
778
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000779endmenu
780
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000781config NONSTATIC_KERNEL
782 bool
783 default n
784
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000785menu "Advanced setup"
786 depends on PPC32
787
788config ADVANCED_OPTIONS
789 bool "Prompt for advanced kernel configuration options"
790 help
791 This option will enable prompting for a variety of advanced kernel
792 configuration options. These options can cause the kernel to not
793 work if they are set incorrectly, but can be used to optimize certain
794 aspects of kernel memory management.
795
796 Unless you know what you are doing, say N here.
797
798comment "Default settings for advanced configuration options are used"
799 depends on !ADVANCED_OPTIONS
800
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000801config LOWMEM_SIZE_BOOL
802 bool "Set maximum low memory"
803 depends on ADVANCED_OPTIONS
804 help
805 This option allows you to set the maximum amount of memory which
806 will be used as "low memory", that is, memory which the kernel can
807 access directly, without having to set up a kernel virtual mapping.
808 This can be useful in optimizing the layout of kernel virtual
809 memory.
810
811 Say N here unless you know what you are doing.
812
813config LOWMEM_SIZE
814 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
815 default "0x30000000"
816
Trent Piepho96051462008-12-08 19:34:58 -0800817config LOWMEM_CAM_NUM_BOOL
818 bool "Set number of CAMs to use to map low memory"
819 depends on ADVANCED_OPTIONS && FSL_BOOKE
820 help
821 This option allows you to set the maximum number of CAM slots that
822 will be used to map low memory. There are a limited number of slots
823 available and even more limited number that will fit in the L1 MMU.
824 However, using more entries will allow mapping more low memory. This
825 can be useful in optimizing the layout of kernel virtual memory.
826
827 Say N here unless you know what you are doing.
828
829config LOWMEM_CAM_NUM
Josh Boyer9b71dbd2009-03-31 08:05:50 -0400830 depends on FSL_BOOKE
Trent Piepho96051462008-12-08 19:34:58 -0800831 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
832 default 3
833
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000834config DYNAMIC_MEMSTART
835 bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
Suzuki Poulose23913242011-12-14 22:57:57 +0000836 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000837 select NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000838 help
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000839 This option enables the kernel to be loaded at any page aligned
840 physical address. The kernel creates a mapping from KERNELBASE to
841 the address where the kernel is loaded. The page size here implies
842 the TLB page size of the mapping for kernel on the particular platform.
843 Please refer to the init code for finding the TLB page size.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000844
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000845 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
846 kernel image, where the only restriction is the page aligned kernel
847 load address. When this option is enabled, the compile time physical
848 address CONFIG_PHYSICAL_START is ignored.
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000849
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000850 This option is overridden by CONFIG_RELOCATABLE
851
852config RELOCATABLE
853 bool "Build a relocatable kernel (EXPERIMENTAL)"
Suzuki Poulose26ecb6c2011-12-14 22:59:24 +0000854 depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +0000855 select NONSTATIC_KERNEL
856 help
857 This builds a kernel image that is capable of running at the
858 location the kernel is loaded at, without any alignment restrictions.
859 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
860
861 One use is for the kexec on panic case where the recovery kernel
862 must live at a different physical address than the primary
863 kernel.
864
865 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
866 it has been loaded at and the compile time physical addresses
867 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
868 setting can still be useful to bootwrappers that need to know the
869 load address of the kernel (eg. u-boot/mkimage).
870
871config RELOCATABLE_PPC32
872 def_bool y
873 depends on PPC32 && RELOCATABLE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000874
875config PAGE_OFFSET_BOOL
876 bool "Set custom page offset address"
877 depends on ADVANCED_OPTIONS
878 help
879 This option allows you to set the kernel virtual address at which
880 the kernel will map low memory. This can be useful in optimizing
881 the virtual memory layout of the system.
882
883 Say N here unless you know what you are doing.
884
885config PAGE_OFFSET
886 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
887 default "0xc0000000"
888
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000889config KERNEL_START_BOOL
890 bool "Set custom kernel base address"
891 depends on ADVANCED_OPTIONS
892 help
893 This option allows you to set the kernel virtual address at which
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000894 the kernel will be loaded. Normally this should match PAGE_OFFSET
895 however there are times (like kdump) that one might not want them
896 to be the same.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000897
898 Say N here unless you know what you are doing.
899
900config KERNEL_START
901 hex "Virtual address of kernel base" if KERNEL_START_BOOL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000902 default PAGE_OFFSET if PAGE_OFFSET_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000903 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000904 default "0xc0000000"
905
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000906config PHYSICAL_START_BOOL
907 bool "Set physical address where the kernel is loaded"
908 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
909 help
910 This gives the physical address where the kernel is loaded.
911
912 Say N here unless you know what you are doing.
913
914config PHYSICAL_START
915 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000916 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000917 default "0x00000000"
918
919config PHYSICAL_ALIGN
920 hex
Trent Piephoc8f35702008-12-08 19:34:59 -0800921 default "0x04000000" if FSL_BOOKE
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000922 help
923 This value puts the alignment restrictions on physical address
924 where kernel is loaded and run from. Kernel is compiled for an
925 address which meets above alignment restriction.
926
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000927config TASK_SIZE_BOOL
928 bool "Set custom user task size"
929 depends on ADVANCED_OPTIONS
930 help
931 This option allows you to set the amount of virtual address space
932 allocated to user tasks. This can be useful in optimizing the
933 virtual memory layout of the system.
934
935 Say N here unless you know what you are doing.
936
937config TASK_SIZE
938 hex "Size of user task space" if TASK_SIZE_BOOL
Kumar Gala4d9e55102007-10-11 13:40:21 -0500939 default "0x80000000" if PPC_PREP || PPC_8xx
940 default "0xc0000000"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000941
Benjamin Herrenschmidt84532a02009-05-27 13:33:14 +1000942config CONSISTENT_SIZE_BOOL
943 bool "Set custom consistent memory pool size"
944 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
945 help
946 This option allows you to set the size of the
947 consistent memory pool. This pool of virtual memory
948 is used to make consistent memory allocations.
949
950config CONSISTENT_SIZE
951 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
952 default "0x00200000" if NOT_COHERENT_CACHE
953
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000954config PIN_TLB
955 bool "Pinned Kernel TLBs (860 ONLY)"
956 depends on ADVANCED_OPTIONS && 8xx
957endmenu
958
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000959if PPC64
Paul Mackerras549e8152008-08-30 11:43:47 +1000960config RELOCATABLE
961 bool "Build a relocatable kernel"
Suzuki Poulose0f890c82011-12-14 22:57:15 +0000962 select NONSTATIC_KERNEL
Paul Mackerras549e8152008-08-30 11:43:47 +1000963 help
964 This builds a kernel image that is capable of running anywhere
965 in the RMA (real memory area) at any 16k-aligned base address.
966 The kernel is linked as a position-independent executable (PIE)
967 and contains dynamic relocations which are processed early
968 in the bootup process.
969
970 One use is for the kexec on panic case where the recovery kernel
971 must live at a different physical address than the primary
972 kernel.
973
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000974config PAGE_OFFSET
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000975 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +1000976 default "0xc000000000000000"
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000977config KERNEL_START
978 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000979 default "0xc000000000000000"
980config PHYSICAL_START
981 hex
Kumar Gala37dd2ba2008-04-22 04:22:34 +1000982 default "0x00000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000983endif
984
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000985source "net/Kconfig"
986
987source "drivers/Kconfig"
988
989source "fs/Kconfig"
990
Li Yang98658532006-10-03 23:10:46 -0500991source "arch/powerpc/sysdev/qe_lib/Kconfig"
992
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000993source "lib/Kconfig"
994
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000995source "arch/powerpc/Kconfig.debug"
996
997source "security/Kconfig"
998
999config KEYS_COMPAT
1000 bool
1001 depends on COMPAT && KEYS
1002 default y
1003
1004source "crypto/Kconfig"
Domen Puncer6f668282007-09-21 00:00:11 +10001005
1006config PPC_CLOCK
1007 bool
1008 default n
David Brownell9483a572008-07-23 21:26:48 -07001009 select HAVE_CLK
Sylvain Munaut1088a202007-09-16 20:53:25 +10001010
1011config PPC_LIB_RHEAP
1012 bool
1013
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001014source "arch/powerpc/kvm/Kconfig"