Commit | Line | Data |
---|---|---|
a0ae9c7c | 1 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 2 | |
14cf11af PM |
3 | config PPC32 |
4 | bool | |
5 | default y if !PPC64 | |
6 | ||
234a71a7 | 7 | config 32BIT |
8 | bool | |
9 | default y if PPC32 | |
10 | ||
14cf11af PM |
11 | config 64BIT |
12 | bool | |
13 | default y if PPC64 | |
14 | ||
600715dc JF |
15 | config ARCH_PHYS_ADDR_T_64BIT |
16 | def_bool PPC64 || PHYS_64BIT | |
17 | ||
787d44ca FT |
18 | config ARCH_DMA_ADDR_T_64BIT |
19 | def_bool ARCH_PHYS_ADDR_T_64BIT | |
20 | ||
14cf11af PM |
21 | config MMU |
22 | bool | |
23 | default y | |
24 | ||
c2a7e818 | 25 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
26 | def_bool PPC64 |
27 | ||
c2a7e818 | 28 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 29 | def_bool PPC64 |
30 | ||
551b81f2 ME |
31 | config NR_IRQS |
32 | int "Number of virtual interrupt numbers" | |
859aefc5 | 33 | range 32 32768 |
551b81f2 ME |
34 | default "512" |
35 | help | |
36 | This defines the number of virtual interrupt numbers the kernel | |
37 | can manage. Virtual interrupt numbers are what you see in | |
38 | /proc/interrupts. If you configure your system to have too few, | |
39 | drivers will fail to load or worse - handle with care. | |
40 | ||
fd3e0bbc CH |
41 | config STACKTRACE_SUPPORT |
42 | bool | |
43 | default y | |
44 | ||
945feb17 BH |
45 | config TRACE_IRQFLAGS_SUPPORT |
46 | bool | |
945feb17 BH |
47 | default y |
48 | ||
49 | config LOCKDEP_SUPPORT | |
50 | bool | |
51 | default y | |
52 | ||
14cf11af PM |
53 | config RWSEM_GENERIC_SPINLOCK |
54 | bool | |
55 | ||
56 | config RWSEM_XCHGADD_ALGORITHM | |
57 | bool | |
58 | default y | |
59 | ||
95c354fe NP |
60 | config GENERIC_LOCKBREAK |
61 | bool | |
62 | default y | |
63 | depends on SMP && PREEMPT | |
64 | ||
f0d1b0b3 DH |
65 | config ARCH_HAS_ILOG2_U32 |
66 | bool | |
ef55d53c | 67 | default y |
f0d1b0b3 DH |
68 | |
69 | config ARCH_HAS_ILOG2_U64 | |
70 | bool | |
ef55d53c | 71 | default y if 64BIT |
f0d1b0b3 | 72 | |
e779b2f9 AM |
73 | config GENERIC_HWEIGHT |
74 | bool | |
75 | default y | |
76 | ||
817820b0 BH |
77 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
78 | bool | |
79 | ||
14cf11af PM |
80 | config PPC |
81 | bool | |
82 | default y | |
b7e7c37b | 83 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 84 | select ARCH_MIGHT_HAVE_PC_SERIO |
d812c0e1 | 85 | select BINFMT_ELF |
2b68f6ca | 86 | select ARCH_HAS_ELF_RANDOMIZE |
10f85f43 | 87 | select OF |
e6ce1324 | 88 | select OF_EARLY_FLATTREE |
708b7eef | 89 | select OF_RESERVED_MEM |
2b79d696 SR |
90 | select HAVE_FTRACE_MCOUNT_RECORD |
91 | select HAVE_DYNAMIC_FTRACE | |
8c50b72a | 92 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
606576ce | 93 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 94 | select HAVE_FUNCTION_GRAPH_TRACER |
7ac57a89 | 95 | select SYSCTL_EXCEPTION_TRACE |
4febd95a | 96 | select VIRT_TO_BUS if !PPC64 |
ec7748b5 | 97 | select HAVE_IDE |
a1f242ff | 98 | select HAVE_IOREMAP_PROT |
0b5e6661 | 99 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN |
3f550096 | 100 | select HAVE_KPROBES |
17ce452f | 101 | select HAVE_ARCH_KGDB |
9edddaa2 | 102 | select HAVE_KRETPROBES |
dec2b0d0 | 103 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 104 | select HAVE_MEMBLOCK |
1d7cfe18 | 105 | select HAVE_MEMBLOCK_NODE_MAP |
80d3e8ab | 106 | select HAVE_DMA_API_DEBUG |
4e491d14 | 107 | select HAVE_OPROFILE |
b69ec42b | 108 | select HAVE_DEBUG_KMEMLEAK |
308c09f1 | 109 | select ARCH_HAS_SG_CHAIN |
c2e95c6d | 110 | select GENERIC_ATOMIC64 if PPC32 |
7463449b | 111 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
cdd6c482 | 112 | select HAVE_PERF_EVENTS |
ed4a4ef8 | 113 | select HAVE_PERF_REGS |
17ed7c38 | 114 | select HAVE_PERF_USER_STACK_DUMP |
359e4284 | 115 | select HAVE_REGS_AND_STACK_ACCESS_API |
5aae8a53 | 116 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
c1d7e01d | 117 | select ARCH_WANT_IPC_PARSE_VERSION |
ad5b7f13 | 118 | select SPARSE_IRQ |
cc79ca69 | 119 | select IRQ_DOMAIN |
433c9c67 TG |
120 | select GENERIC_IRQ_SHOW |
121 | select GENERIC_IRQ_SHOW_LEVEL | |
e8d2c473 | 122 | select IRQ_FORCED_THREADING |
26723911 | 123 | select HAVE_RCU_TABLE_FREE if SMP |
02424d89 | 124 | select HAVE_SYSCALL_TRACEPOINTS |
156d0e29 NR |
125 | select HAVE_CBPF_JIT if !PPC64 |
126 | select HAVE_EBPF_JIT if PPC64 | |
ac5f89c7 | 127 | select HAVE_ARCH_JUMP_LABEL |
df013ffb | 128 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
957e3fac | 129 | select ARCH_HAS_GCOV_PROFILE_ALL |
17e32eac | 130 | select GENERIC_SMP_IDLE_THREAD |
b9ed27df | 131 | select GENERIC_CMOS_UPDATE |
70639421 | 132 | select GENERIC_TIME_VSYSCALL_OLD |
b9ed27df | 133 | select GENERIC_CLOCKEVENTS |
0d948730 PM |
134 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
135 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
1629372c PM |
136 | select GENERIC_STRNCPY_FROM_USER |
137 | select GENERIC_STRNLEN_USER | |
786d35d4 DH |
138 | select HAVE_MOD_ARCH_SPECIFIC |
139 | select MODULES_USE_ELF_RELA | |
0bcfe540 | 140 | select CLONE_BACKWARDS |
fe3955cb | 141 | select ARCH_USE_BUILTIN_BSWAP |
0980caea | 142 | select OLD_SIGSUSPEND |
09a4d5d0 | 143 | select OLD_SIGACTION if PPC32 |
d1a1dc0b | 144 | select HAVE_DEBUG_STACKOVERFLOW |
62d26c82 | 145 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
3405d230 | 146 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 |
7a017721 | 147 | select HAVE_ARCH_AUDITSYSCALL |
4badad35 | 148 | select ARCH_SUPPORTS_ATOMIC_RMW |
a75c380c | 149 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
10239733 | 150 | select NO_BOOTMEM |
b30e7590 | 151 | select HAVE_GENERIC_RCU_GUP |
c54b2bf1 | 152 | select HAVE_PERF_EVENTS_NMI if PPC64 |
42a0bb3f | 153 | select HAVE_NMI if PERF_EVENTS |
b01aec9b BP |
154 | select EDAC_SUPPORT |
155 | select EDAC_ATOMIC_SCRUB | |
817820b0 | 156 | select ARCH_HAS_DMA_SET_COHERENT_MASK |
21266be9 | 157 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
2449acc5 | 158 | select HAVE_ARCH_SECCOMP_FILTER |
bf76f73c | 159 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
7f2bd006 | 160 | select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT |
85baa095 | 161 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
4a120276 | 162 | select GENERIC_CPU_AUTOPROBE |
c223c903 | 163 | select HAVE_VIRT_CPU_ACCOUNTING |
1d3c1324 | 164 | select HAVE_ARCH_HARDENED_USERCOPY |
14cf11af | 165 | |
7a332b0c AB |
166 | config GENERIC_CSUM |
167 | def_bool CPU_LITTLE_ENDIAN | |
168 | ||
14cf11af PM |
169 | config EARLY_PRINTK |
170 | bool | |
51d3082f | 171 | default y |
14cf11af | 172 | |
b71d47c1 JB |
173 | config PANIC_TIMEOUT |
174 | int | |
175 | default 180 | |
176 | ||
14cf11af PM |
177 | config COMPAT |
178 | bool | |
179 | default y if PPC64 | |
01e31dba | 180 | select COMPAT_BINFMT_ELF |
48b25c43 | 181 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 182 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
183 | |
184 | config SYSVIPC_COMPAT | |
185 | bool | |
186 | depends on COMPAT && SYSVIPC | |
187 | default y | |
188 | ||
189 | # All PPC32s use generic nvram driver through ppc_md | |
190 | config GENERIC_NVRAM | |
191 | bool | |
192 | default y if PPC32 | |
193 | ||
ae1e9130 | 194 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
195 | bool |
196 | default y | |
197 | ||
198 | config ARCH_MAY_HAVE_PC_FDC | |
199 | bool | |
3484a31f | 200 | default PCI |
14cf11af | 201 | |
08264cbc KG |
202 | config PPC_UDBG_16550 |
203 | bool | |
204 | default n | |
205 | ||
08264cbc KG |
206 | config GENERIC_TBSYNC |
207 | bool | |
208 | default y if PPC32 && SMP | |
209 | default n | |
210 | ||
e65e1fc2 AV |
211 | config AUDIT_ARCH |
212 | bool | |
213 | default y | |
214 | ||
73c9ceab JF |
215 | config GENERIC_BUG |
216 | bool | |
217 | default y | |
218 | depends on BUG | |
219 | ||
b3028878 | 220 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 221 | default y if PMAC_APM_EMU |
b3028878 JB |
222 | bool |
223 | ||
6c5b59b9 DG |
224 | config EPAPR_BOOT |
225 | bool | |
226 | help | |
227 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
228 | default n | |
229 | ||
f4fc4a5b KG |
230 | config DEFAULT_UIMAGE |
231 | bool | |
232 | help | |
233 | Used to allow a board to specify it wants a uImage built by default | |
234 | default n | |
235 | ||
801e4062 JB |
236 | config ARCH_HIBERNATION_POSSIBLE |
237 | bool | |
543b9fd3 JB |
238 | default y |
239 | ||
f4cb5700 JB |
240 | config ARCH_SUSPEND_POSSIBLE |
241 | def_bool y | |
4ffd6952 | 242 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
243 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
244 | || 44x || 40x | |
f4cb5700 | 245 | |
4c75a6f4 BH |
246 | config PPC_DCR_NATIVE |
247 | bool | |
248 | default n | |
249 | ||
250 | config PPC_DCR_MMIO | |
251 | bool | |
252 | default n | |
253 | ||
254 | config PPC_DCR | |
255 | bool | |
256 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
257 | default y | |
258 | ||
4c9d2800 BH |
259 | config PPC_OF_PLATFORM_PCI |
260 | bool | |
373a6da1 | 261 | depends on PCI |
4c9d2800 BH |
262 | depends on PPC64 # not supported on 32 bits yet |
263 | default n | |
264 | ||
6a11f75b | 265 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 266 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
267 | def_bool y |
268 | ||
8b7b80b9 AM |
269 | config ARCH_SUPPORTS_UPROBES |
270 | def_bool y | |
271 | ||
172ae2e7 DK |
272 | config PPC_ADV_DEBUG_REGS |
273 | bool | |
274 | depends on 40x || BOOKE | |
275 | default y | |
276 | ||
277 | config PPC_ADV_DEBUG_IACS | |
278 | int | |
279 | depends on PPC_ADV_DEBUG_REGS | |
280 | default 4 if 44x | |
281 | default 2 | |
282 | ||
283 | config PPC_ADV_DEBUG_DACS | |
284 | int | |
285 | depends on PPC_ADV_DEBUG_REGS | |
286 | default 2 | |
287 | ||
288 | config PPC_ADV_DEBUG_DVCS | |
289 | int | |
290 | depends on PPC_ADV_DEBUG_REGS | |
291 | default 2 if 44x | |
292 | default 0 | |
293 | ||
294 | config PPC_ADV_DEBUG_DAC_RANGE | |
295 | bool | |
296 | depends on PPC_ADV_DEBUG_REGS && 44x | |
297 | default y | |
298 | ||
5e249d45 SP |
299 | config PPC_EMULATE_SSTEP |
300 | bool | |
301 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
302 | ||
1c98025c SW |
303 | config ZONE_DMA32 |
304 | bool | |
305 | default y if PPC64 | |
306 | ||
06ef42a1 KS |
307 | config PGTABLE_LEVELS |
308 | int | |
309 | default 2 if !PPC64 | |
368ced78 | 310 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
311 | default 4 |
312 | ||
14cf11af PM |
313 | source "init/Kconfig" |
314 | ||
dc52ddc0 MH |
315 | source "kernel/Kconfig.freezer" |
316 | ||
a2d2e1ec | 317 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 318 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 319 | |
14cf11af PM |
320 | menu "Kernel options" |
321 | ||
322 | config HIGHMEM | |
323 | bool "High memory support" | |
324 | depends on PPC32 | |
325 | ||
326 | source kernel/Kconfig.hz | |
327 | source kernel/Kconfig.preempt | |
328 | source "fs/Kconfig.binfmt" | |
329 | ||
ba72cb8c MG |
330 | config HUGETLB_PAGE_SIZE_VARIABLE |
331 | bool | |
332 | depends on HUGETLB_PAGE | |
333 | default y | |
334 | ||
14cf11af PM |
335 | config MATH_EMULATION |
336 | bool "Math emulation" | |
4e63f8ed | 337 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
338 | ---help--- |
339 | Some PowerPC chips designed for embedded applications do not have | |
340 | a floating-point unit and therefore do not implement the | |
341 | floating-point instructions in the PowerPC instruction set. If you | |
342 | say Y here, the kernel will include code to emulate a floating-point | |
343 | unit, which will allow programs that use floating-point | |
344 | instructions to run. | |
345 | ||
4e63f8ed BH |
346 | This is also useful to emulate missing (optional) instructions |
347 | such as fsqrt on cores that do have an FPU but do not implement | |
348 | them (such as Freescale BookE). | |
349 | ||
e05c0e81 KH |
350 | choice |
351 | prompt "Math emulation options" | |
352 | default MATH_EMULATION_FULL | |
353 | depends on MATH_EMULATION | |
354 | ||
355 | config MATH_EMULATION_FULL | |
356 | bool "Emulate all the floating point instructions" | |
357 | ---help--- | |
358 | Select this option will enable the kernel to support to emulate | |
359 | all the floating point instructions. If your SoC doesn't have | |
360 | a FPU, you should select this. | |
361 | ||
362 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
363 | bool "Just emulate the FPU unimplemented instructions" | |
364 | ---help--- | |
365 | Select this if you know there does have a hardware FPU on your | |
366 | SoC, but some floating point instructions are not implemented by that. | |
367 | ||
368 | endchoice | |
369 | ||
3d72bbc4 MN |
370 | config PPC_TRANSACTIONAL_MEM |
371 | bool "Transactional Memory support for POWERPC" | |
372 | depends on PPC_BOOK3S_64 | |
373 | depends on SMP | |
7b37a123 MN |
374 | select ALTIVEC |
375 | select VSX | |
3d72bbc4 MN |
376 | default n |
377 | ---help--- | |
378 | Support user-mode Transactional Memory on POWERPC. | |
379 | ||
8c50b72a TD |
380 | config DISABLE_MPROFILE_KERNEL |
381 | bool "Disable use of mprofile-kernel for kernel tracing" | |
382 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
383 | default y | |
384 | help | |
385 | Selecting this options disables use of the mprofile-kernel ABI for | |
386 | kernel tracing. That will cause options such as live patching | |
387 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
388 | be disabled also. | |
389 | ||
390 | If you have a toolchain which supports mprofile-kernel, then you can | |
391 | enable this. Otherwise leave it disabled. If you're not sure, say | |
392 | "N". | |
393 | ||
394 | config MPROFILE_KERNEL | |
395 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
396 | def_bool !DISABLE_MPROFILE_KERNEL | |
397 | ||
fb3475e9 FT |
398 | config IOMMU_HELPER |
399 | def_bool PPC64 | |
400 | ||
ec3cf2ec BB |
401 | config SWIOTLB |
402 | bool "SWIOTLB support" | |
403 | default n | |
404 | select IOMMU_HELPER | |
405 | ---help--- | |
406 | Support for IO bounce buffering for systems without an IOMMU. | |
407 | This allows us to DMA to the full physical address space on | |
408 | platforms where the size of a physical address is larger | |
409 | than the bus address. Not all platforms support this. | |
410 | ||
14cf11af PM |
411 | config HOTPLUG_CPU |
412 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 413 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 414 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
415 | ---help--- |
416 | Say Y here to be able to disable and re-enable individual | |
417 | CPUs at runtime on SMP machines. | |
418 | ||
419 | Say N if you are unsure. | |
420 | ||
12633e80 NF |
421 | config ARCH_CPU_PROBE_RELEASE |
422 | def_bool y | |
423 | depends on HOTPLUG_CPU | |
424 | ||
cc57637b YG |
425 | config ARCH_ENABLE_MEMORY_HOTPLUG |
426 | def_bool y | |
427 | ||
a99824f3 BP |
428 | config ARCH_HAS_WALK_MEMORY |
429 | def_bool y | |
430 | ||
1482471d BP |
431 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
432 | def_bool y | |
433 | ||
f2296a3d MS |
434 | config PPC64_SUPPORTS_MEMORY_FAILURE |
435 | bool "Add support for memory hwpoison" | |
436 | depends on PPC_BOOK3S_64 | |
437 | default "y" if PPC_POWERNV | |
438 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
439 | ||
14cf11af | 440 | config KEXEC |
642e56ff | 441 | bool "kexec system call" |
96eea642 | 442 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 443 | select KEXEC_CORE |
14cf11af PM |
444 | help |
445 | kexec is a system call that implements the ability to shutdown your | |
446 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 447 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
448 | you can start any kernel with it, not just Linux. |
449 | ||
1f1332f7 | 450 | The name comes from the similarity to the exec system call. |
14cf11af PM |
451 | |
452 | It is an ongoing process to be certain the hardware in a machine | |
453 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
454 | initially work for you. As of this writing the exact hardware |
455 | interface is strongly in flux, so no good recommendation can be | |
456 | made. | |
14cf11af | 457 | |
4c91bd6e KH |
458 | config RELOCATABLE |
459 | bool "Build a relocatable kernel" | |
460 | depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE)) | |
461 | select NONSTATIC_KERNEL | |
462 | help | |
463 | This builds a kernel image that is capable of running at the | |
464 | location the kernel is loaded at. For ppc32, there is no any | |
465 | alignment restrictions, and this feature is a superset of | |
466 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
467 | 16k-aligned base address. The kernel is linked as a | |
468 | position-independent executable (PIE) and contains dynamic relocations | |
469 | which are processed early in the bootup process. | |
470 | ||
471 | One use is for the kexec on panic case where the recovery kernel | |
472 | must live at a different physical address than the primary | |
473 | kernel. | |
474 | ||
475 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
476 | it has been loaded at and the compile time physical addresses | |
477 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
478 | setting can still be useful to bootwrappers that need to know the | |
479 | load address of the kernel (eg. u-boot/mkimage). | |
480 | ||
e8625d46 | 481 | config CRASH_DUMP |
3420b5da | 482 | bool "Build a kdump crash kernel" |
47da4219 | 483 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 484 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
485 | help |
486 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
487 | The same kernel binary can be used as production kernel and dump |
488 | capture kernel. | |
e8625d46 | 489 | |
eb39c880 MS |
490 | config FA_DUMP |
491 | bool "Firmware-assisted dump" | |
90890b1e | 492 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
242f271c | 493 | help |
eb39c880 MS |
494 | A robust mechanism to get reliable kernel crash dump with |
495 | assistance from firmware. This approach does not use kexec, | |
496 | instead firmware assists in booting the kdump kernel | |
497 | while preserving memory contents. Firmware-assisted dump | |
498 | is meant to be a kdump replacement offering robustness and | |
499 | speed not possible without system firmware assistance. | |
242f271c MA |
500 | |
501 | If unsure, say "N" | |
502 | ||
14cf11af PM |
503 | config IRQ_ALL_CPUS |
504 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 505 | depends on SMP |
14cf11af PM |
506 | help |
507 | This option gives the kernel permission to distribute IRQs across | |
508 | multiple CPUs. Saying N here will route all IRQs to the first | |
509 | CPU. Generally saying Y is safe, although some problems have been | |
510 | reported with SMP Power Macintoshes with this option enabled. | |
511 | ||
ffa27b6b AW |
512 | config NUMA |
513 | bool "NUMA support" | |
514 | depends on PPC64 | |
515 | default y if SMP && PPC_PSERIES | |
516 | ||
c80d79d7 YG |
517 | config NODES_SHIFT |
518 | int | |
ea55bf29 | 519 | default "8" if PPC64 |
c80d79d7 YG |
520 | default "4" |
521 | depends on NEED_MULTIPLE_NODES | |
522 | ||
8c272261 NA |
523 | config USE_PERCPU_NUMA_NODE_ID |
524 | def_bool y | |
525 | depends on NUMA | |
526 | ||
64bb80d8 NA |
527 | config HAVE_MEMORYLESS_NODES |
528 | def_bool y | |
529 | depends on NUMA | |
530 | ||
14cf11af PM |
531 | config ARCH_SELECT_MEMORY_MODEL |
532 | def_bool y | |
533 | depends on PPC64 | |
534 | ||
535 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
536 | def_bool y |
537 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 538 | |
45fb6cea | 539 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 540 | def_bool y |
9100b205 | 541 | depends on PPC64 |
d29eff7b | 542 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 543 | |
45fb6cea | 544 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 545 | def_bool y |
78bde53e | 546 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 547 | |
5a1eb5c4 | 548 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 549 | bool |
5a1eb5c4 | 550 | |
c67c3cb4 | 551 | source "mm/Kconfig" |
14cf11af | 552 | |
7e9191da MK |
553 | config ARCH_MEMORY_PROBE |
554 | def_bool y | |
555 | depends on MEMORY_HOTPLUG | |
556 | ||
75167957 AW |
557 | # Some NUMA nodes have memory ranges that span |
558 | # other nodes. Even though a pfn is valid and | |
559 | # between a node's start and end pfns, it may not | |
560 | # reside on that node. See memmap_init_zone() | |
561 | # for details. | |
562 | config NODES_SPAN_OTHER_NODES | |
563 | def_bool y | |
564 | depends on NEED_MULTIPLE_NODES | |
565 | ||
e1240122 YT |
566 | config STDBINUTILS |
567 | bool "Using standard binutils settings" | |
568 | depends on 44x | |
569 | default y | |
570 | help | |
571 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
572 | Note, that kernel will be able to run only those applications, | |
573 | which had been compiled using binutils later than 2.17.50.0.3 with | |
574 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
575 | the older binutils, you can patch them with a trivial patch, which | |
576 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
577 | ||
ca9153a3 IY |
578 | choice |
579 | prompt "Page size" | |
580 | default PPC_4K_PAGES | |
3c726f8d | 581 | help |
ca9153a3 IY |
582 | Select the kernel logical page size. Increasing the page size |
583 | will reduce software overhead at each page boundary, allow | |
584 | hardware prefetch mechanisms to be more effective, and allow | |
585 | larger dma transfers increasing IO efficiency and reducing | |
586 | overhead. However the utilization of memory will increase. | |
587 | For example, each cached file will using a multiple of the | |
588 | page size to hold its contents and the difference between the | |
589 | end of file and the end of page is wasted. | |
590 | ||
591 | Some dedicated systems, such as software raid serving with | |
592 | accelerated calculations, have shown significant increases. | |
593 | ||
594 | If you configure a 64 bit kernel for 64k pages but the | |
595 | processor does not support them, then the kernel will simulate | |
596 | them with 4k pages, loading them on demand, but with the | |
597 | reduced software overhead and larger internal fragmentation. | |
598 | For the 32 bit kernel, a large page option will not be offered | |
599 | unless it is supported by the configured processor. | |
600 | ||
601 | If unsure, choose 4K_PAGES. | |
602 | ||
603 | config PPC_4K_PAGES | |
604 | bool "4k page size" | |
19f97c98 | 605 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
606 | |
607 | config PPC_16K_PAGES | |
55f8b5b8 ME |
608 | bool "16k page size" |
609 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
610 | |
611 | config PPC_64K_PAGES | |
55f8b5b8 ME |
612 | bool "64k page size" |
613 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
19f97c98 | 614 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 615 | |
e1240122 | 616 | config PPC_256K_PAGES |
55f8b5b8 ME |
617 | bool "256k page size" |
618 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
619 | help |
620 | Make the page size 256k. | |
621 | ||
622 | As the ELF standard only requires alignment to support page | |
623 | sizes up to 64k, you will need to compile all of your user | |
624 | space applications with a non-standard binutils settings | |
625 | (see the STDBINUTILS description for details). | |
626 | ||
627 | Say N unless you know what you are doing. | |
628 | ||
ca9153a3 | 629 | endchoice |
3c726f8d | 630 | |
53bcddb9 SR |
631 | config FORCE_MAX_ZONEORDER |
632 | int "Maximum zone order" | |
a7ee5395 | 633 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 634 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 635 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
636 | default "13" if PPC64 && !PPC_64K_PAGES |
637 | range 9 64 if PPC32 && PPC_16K_PAGES | |
638 | default "9" if PPC32 && PPC_16K_PAGES | |
639 | range 7 64 if PPC32 && PPC_64K_PAGES | |
640 | default "7" if PPC32 && PPC_64K_PAGES | |
641 | range 5 64 if PPC32 && PPC_256K_PAGES | |
642 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 643 | range 11 64 |
53bcddb9 SR |
644 | default "11" |
645 | help | |
646 | The kernel memory allocator divides physically contiguous memory | |
647 | blocks into "zones", where each zone is a power of two number of | |
648 | pages. This option selects the largest power of two that the kernel | |
649 | keeps in the memory allocator. If you need to allocate very large | |
650 | blocks of physically contiguous memory, then you may need to | |
651 | increase this value. | |
652 | ||
653 | This config option is actually maximum order plus one. For example, | |
654 | a value of 11 means that the largest free memory block is 2^10 pages. | |
655 | ||
656 | The page size is not necessarily 4KB. For example, on 64-bit | |
657 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
658 | this in mind when choosing a value for this option. | |
659 | ||
fa28237c PM |
660 | config PPC_SUBPAGE_PROT |
661 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 662 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
663 | help |
664 | This option adds support for a system call to allow user programs | |
665 | to set access permissions (read/write, readonly, or no access) | |
666 | on the 4k subpages of each 64k page. | |
667 | ||
e83d0169 IM |
668 | config PPC_COPRO_BASE |
669 | bool | |
670 | default n | |
671 | ||
14cf11af PM |
672 | config SCHED_SMT |
673 | bool "SMT (Hyperthreading) scheduler support" | |
674 | depends on PPC64 && SMP | |
14cf11af PM |
675 | help |
676 | SMT scheduler support improves the CPU scheduler's decision making | |
677 | when dealing with POWER5 cpus at a cost of slightly increased | |
678 | overhead in some places. If unsure say N here. | |
679 | ||
b92a66a6 MN |
680 | config PPC_DENORMALISATION |
681 | bool "PowerPC denormalisation exception handling" | |
682 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 683 | default "y" if PPC_POWERNV |
b92a66a6 MN |
684 | ---help--- |
685 | Add support for handling denormalisation of single precision | |
686 | values. Useful for bare metal only. If unsure say Y here. | |
687 | ||
14cf11af PM |
688 | config CMDLINE_BOOL |
689 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
690 | |
691 | config CMDLINE | |
692 | string "Initial kernel command string" | |
693 | depends on CMDLINE_BOOL | |
694 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
695 | help | |
696 | On some platforms, there is currently no way for the boot loader to | |
697 | pass arguments to the kernel. For these platforms, you can supply | |
698 | some command-line options at build time by entering them here. In | |
699 | most cases you will need to specify the root device here. | |
700 | ||
eb3b80f6 SS |
701 | config CMDLINE_FORCE |
702 | bool "Always use the default kernel command string" | |
703 | depends on CMDLINE_BOOL | |
704 | help | |
705 | Always use the default kernel command string, even if the boot | |
706 | loader passes other arguments to the kernel. | |
707 | This is useful if you cannot or don't want to change the | |
708 | command-line options your boot loader passes to the kernel. | |
709 | ||
c356aa45 GL |
710 | config EXTRA_TARGETS |
711 | string "Additional default image types" | |
712 | help | |
713 | List additional targets to be built by the bootwrapper here (separated | |
714 | by spaces). This is useful for targets that depend of device tree | |
715 | files in the .dts directory. | |
716 | ||
717 | Targets in this list will be build as part of the default build | |
718 | target, or when the user does a 'make zImage' or a | |
719 | 'make zImage.initrd'. | |
720 | ||
721 | If unsure, leave blank | |
722 | ||
b28f5081 JB |
723 | config ARCH_WANTS_FREEZER_CONTROL |
724 | def_bool y | |
725 | depends on ADB_PMU | |
726 | ||
14cf11af | 727 | source kernel/power/Kconfig |
14cf11af PM |
728 | |
729 | config SECCOMP | |
730 | bool "Enable seccomp to safely compute untrusted bytecode" | |
731 | depends on PROC_FS | |
732 | default y | |
733 | help | |
734 | This kernel feature is useful for number crunching applications | |
735 | that may need to compute untrusted bytecode during their | |
736 | execution. By using pipes or other transports made available to | |
737 | the process as file descriptors supporting the read/write | |
738 | syscalls, it's possible to isolate those applications in | |
739 | their own address space using seccomp. Once seccomp is | |
740 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
741 | and the task is only allowed to execute a few safe syscalls | |
742 | defined by each seccomp mode. | |
743 | ||
744 | If unsure, say Y. Only embedded should say N here. | |
745 | ||
746 | endmenu | |
747 | ||
748 | config ISA_DMA_API | |
749 | bool | |
3d066d77 | 750 | default PCI |
14cf11af PM |
751 | |
752 | menu "Bus options" | |
753 | ||
754 | config ISA | |
755 | bool "Support for ISA-bus hardware" | |
933ee711 | 756 | depends on PPC_CHRP |
f9bd170a | 757 | select PPC_I8259 |
14cf11af PM |
758 | help |
759 | Find out whether you have ISA slots on your motherboard. ISA is the | |
760 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
761 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
762 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
763 | embedded board, consult your board documentation. | |
14cf11af | 764 | |
5ac6da66 CL |
765 | config ZONE_DMA |
766 | bool | |
767 | default y | |
768 | ||
af407c6d FT |
769 | config NEED_DMA_MAP_STATE |
770 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
771 | ||
e32205eb FT |
772 | config NEED_SG_DMA_LENGTH |
773 | def_bool y | |
774 | ||
14cf11af PM |
775 | config GENERIC_ISA_DMA |
776 | bool | |
1927445a | 777 | depends on ISA_DMA_API |
14cf11af PM |
778 | default y |
779 | ||
25635c71 PM |
780 | config PPC_INDIRECT_PCI |
781 | bool | |
782 | depends on PCI | |
63dafe57 | 783 | default y if 40x || 44x |
25635c71 PM |
784 | default n |
785 | ||
14cf11af PM |
786 | config EISA |
787 | bool | |
788 | ||
789 | config SBUS | |
790 | bool | |
791 | ||
08264cbc KG |
792 | config FSL_SOC |
793 | bool | |
794 | ||
55c44991 RZ |
795 | config FSL_PCI |
796 | bool | |
797 | select PPC_INDIRECT_PCI | |
d0839118 | 798 | select PCI_QUIRKS |
55c44991 | 799 | |
4ffd6952 AV |
800 | config FSL_PMC |
801 | bool | |
802 | default y | |
803 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
804 | help | |
805 | Freescale MPC85xx/MPC86xx power management controller support | |
806 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
807 | ||
d164f6d4 VG |
808 | config PPC4xx_CPM |
809 | bool | |
810 | default y | |
811 | depends on SUSPEND && (44x || 40x) | |
812 | help | |
813 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
814 | It also enables support for two different idle states (idle-wait | |
815 | and idle-doze). | |
816 | ||
2a706919 SR |
817 | config 4xx_SOC |
818 | bool | |
819 | ||
acaa7aa3 | 820 | config FSL_LBC |
3ab8f2a2 | 821 | bool "Freescale Local Bus support" |
acaa7aa3 | 822 | help |
3ab8f2a2 RZ |
823 | Enables reporting of errors from the Freescale local bus |
824 | controller. Also contains some common code used by | |
825 | drivers for specific local bus peripherals. | |
acaa7aa3 | 826 | |
83ff9dcf AV |
827 | config FSL_GTM |
828 | bool | |
829 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
830 | help | |
831 | Freescale General-purpose Timers support | |
832 | ||
14cf11af PM |
833 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
834 | config MCA | |
835 | bool | |
836 | ||
b500563b JR |
837 | # Platforms that what PCI turned unconditionally just do select PCI |
838 | # in their config node. Platforms that want to choose at config | |
839 | # time should select PPC_PCI_CHOICE | |
840 | config PPC_PCI_CHOICE | |
841 | bool | |
842 | ||
14cf11af | 843 | config PCI |
b500563b JR |
844 | bool "PCI support" if PPC_PCI_CHOICE |
845 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 846 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 847 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 848 | select GENERIC_PCI_IOMAP |
14cf11af PM |
849 | help |
850 | Find out whether your system includes a PCI bus. PCI is the name of | |
851 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
852 | your box. If you say Y here, the kernel will include drivers and | |
853 | infrastructure code to support PCI bus devices. | |
854 | ||
855 | config PCI_DOMAINS | |
36e23590 MW |
856 | def_bool PCI |
857 | ||
858 | config PCI_SYSCALL | |
859 | def_bool PCI | |
14cf11af | 860 | |
14cf11af PM |
861 | config PCI_QSPAN |
862 | bool "QSpan PCI" | |
863 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 864 | select PPC_I8259 |
14cf11af PM |
865 | help |
866 | Say Y here if you have a system based on a Motorola 8xx-series | |
867 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
868 | ||
869 | config PCI_8260 | |
870 | bool | |
871 | depends on PCI && 8260 | |
25635c71 | 872 | select PPC_INDIRECT_PCI |
14cf11af PM |
873 | default y |
874 | ||
14cf11af PM |
875 | source "drivers/pci/Kconfig" |
876 | ||
877 | source "drivers/pcmcia/Kconfig" | |
878 | ||
f1f389d5 ZW |
879 | config HAS_RAPIDIO |
880 | bool | |
881 | default n | |
882 | ||
883 | config RAPIDIO | |
56abde72 | 884 | tristate "RapidIO support" |
388b78ad | 885 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
886 | help |
887 | If you say Y here, the kernel will include drivers and | |
888 | infrastructure code to support RapidIO interconnect devices. | |
889 | ||
388b78ad AB |
890 | config FSL_RIO |
891 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 892 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
893 | default "n" |
894 | ---help--- | |
895 | Include support for RapidIO controller on Freescale embedded | |
896 | processors (MPC8548, MPC8641, etc). | |
897 | ||
f1f389d5 ZW |
898 | source "drivers/rapidio/Kconfig" |
899 | ||
14cf11af PM |
900 | endmenu |
901 | ||
0f890c8d SP |
902 | config NONSTATIC_KERNEL |
903 | bool | |
904 | default n | |
905 | ||
14cf11af PM |
906 | menu "Advanced setup" |
907 | depends on PPC32 | |
908 | ||
909 | config ADVANCED_OPTIONS | |
910 | bool "Prompt for advanced kernel configuration options" | |
911 | help | |
912 | This option will enable prompting for a variety of advanced kernel | |
913 | configuration options. These options can cause the kernel to not | |
914 | work if they are set incorrectly, but can be used to optimize certain | |
915 | aspects of kernel memory management. | |
916 | ||
917 | Unless you know what you are doing, say N here. | |
918 | ||
919 | comment "Default settings for advanced configuration options are used" | |
920 | depends on !ADVANCED_OPTIONS | |
921 | ||
14cf11af PM |
922 | config LOWMEM_SIZE_BOOL |
923 | bool "Set maximum low memory" | |
924 | depends on ADVANCED_OPTIONS | |
925 | help | |
926 | This option allows you to set the maximum amount of memory which | |
927 | will be used as "low memory", that is, memory which the kernel can | |
928 | access directly, without having to set up a kernel virtual mapping. | |
929 | This can be useful in optimizing the layout of kernel virtual | |
930 | memory. | |
931 | ||
932 | Say N here unless you know what you are doing. | |
933 | ||
934 | config LOWMEM_SIZE | |
935 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
936 | default "0x30000000" | |
937 | ||
96051465 TP |
938 | config LOWMEM_CAM_NUM_BOOL |
939 | bool "Set number of CAMs to use to map low memory" | |
940 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
941 | help | |
942 | This option allows you to set the maximum number of CAM slots that | |
943 | will be used to map low memory. There are a limited number of slots | |
944 | available and even more limited number that will fit in the L1 MMU. | |
945 | However, using more entries will allow mapping more low memory. This | |
946 | can be useful in optimizing the layout of kernel virtual memory. | |
947 | ||
948 | Say N here unless you know what you are doing. | |
949 | ||
950 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 951 | depends on FSL_BOOKE |
96051465 TP |
952 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
953 | default 3 | |
954 | ||
0f890c8d | 955 | config DYNAMIC_MEMSTART |
642e56ff KC |
956 | bool "Enable page aligned dynamic load address for kernel" |
957 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
958 | select NONSTATIC_KERNEL |
959 | help | |
960 | This option enables the kernel to be loaded at any page aligned | |
961 | physical address. The kernel creates a mapping from KERNELBASE to | |
962 | the address where the kernel is loaded. The page size here implies | |
963 | the TLB page size of the mapping for kernel on the particular platform. | |
964 | Please refer to the init code for finding the TLB page size. | |
965 | ||
966 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
967 | kernel image, where the only restriction is the page aligned kernel | |
968 | load address. When this option is enabled, the compile time physical | |
969 | address CONFIG_PHYSICAL_START is ignored. | |
970 | ||
9c5f7d39 SP |
971 | This option is overridden by CONFIG_RELOCATABLE |
972 | ||
37dd2bad KG |
973 | config PAGE_OFFSET_BOOL |
974 | bool "Set custom page offset address" | |
975 | depends on ADVANCED_OPTIONS | |
976 | help | |
977 | This option allows you to set the kernel virtual address at which | |
978 | the kernel will map low memory. This can be useful in optimizing | |
979 | the virtual memory layout of the system. | |
980 | ||
981 | Say N here unless you know what you are doing. | |
982 | ||
983 | config PAGE_OFFSET | |
984 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
985 | default "0xc0000000" | |
986 | ||
14cf11af PM |
987 | config KERNEL_START_BOOL |
988 | bool "Set custom kernel base address" | |
989 | depends on ADVANCED_OPTIONS | |
990 | help | |
991 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
992 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
993 | however there are times (like kdump) that one might not want them | |
994 | to be the same. | |
14cf11af PM |
995 | |
996 | Say N here unless you know what you are doing. | |
997 | ||
998 | config KERNEL_START | |
999 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1000 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1001 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1002 | default "0xc0000000" |
1003 | ||
37dd2bad KG |
1004 | config PHYSICAL_START_BOOL |
1005 | bool "Set physical address where the kernel is loaded" | |
1006 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1007 | help | |
1008 | This gives the physical address where the kernel is loaded. | |
1009 | ||
1010 | Say N here unless you know what you are doing. | |
1011 | ||
1012 | config PHYSICAL_START | |
1013 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1014 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1015 | default "0x00000000" |
1016 | ||
1017 | config PHYSICAL_ALIGN | |
1018 | hex | |
c8f3570b | 1019 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1020 | help |
1021 | This value puts the alignment restrictions on physical address | |
1022 | where kernel is loaded and run from. Kernel is compiled for an | |
1023 | address which meets above alignment restriction. | |
1024 | ||
14cf11af PM |
1025 | config TASK_SIZE_BOOL |
1026 | bool "Set custom user task size" | |
1027 | depends on ADVANCED_OPTIONS | |
1028 | help | |
1029 | This option allows you to set the amount of virtual address space | |
1030 | allocated to user tasks. This can be useful in optimizing the | |
1031 | virtual memory layout of the system. | |
1032 | ||
1033 | Say N here unless you know what you are doing. | |
1034 | ||
1035 | config TASK_SIZE | |
1036 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1037 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1038 | default "0xc0000000" |
14cf11af | 1039 | |
84532a0f BH |
1040 | config CONSISTENT_SIZE_BOOL |
1041 | bool "Set custom consistent memory pool size" | |
1042 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1043 | help | |
1044 | This option allows you to set the size of the | |
1045 | consistent memory pool. This pool of virtual memory | |
1046 | is used to make consistent memory allocations. | |
1047 | ||
1048 | config CONSISTENT_SIZE | |
1049 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1050 | default "0x00200000" if NOT_COHERENT_CACHE | |
1051 | ||
14cf11af PM |
1052 | config PIN_TLB |
1053 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1054 | depends on ADVANCED_OPTIONS && 8xx | |
62f64b49 CL |
1055 | |
1056 | config PIN_TLB_IMMR | |
1057 | bool "Pinned TLB for IMMR" | |
1058 | depends on PIN_TLB | |
1059 | default y | |
14cf11af PM |
1060 | endmenu |
1061 | ||
cabb5587 | 1062 | if PPC64 |
bdbc29c1 | 1063 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1064 | config PAGE_OFFSET |
1065 | hex | |
1066 | default "0xc000000000000000" | |
cabb5587 SR |
1067 | config KERNEL_START |
1068 | hex | |
eeb2d218 | 1069 | default "0xc000000000000000" |
37dd2bad KG |
1070 | config PHYSICAL_START |
1071 | hex | |
37dd2bad | 1072 | default "0x00000000" |
cabb5587 SR |
1073 | endif |
1074 | ||
a4da0d50 ME |
1075 | config ARCH_RANDOM |
1076 | def_bool n | |
1077 | ||
14cf11af PM |
1078 | source "net/Kconfig" |
1079 | ||
1080 | source "drivers/Kconfig" | |
1081 | ||
1082 | source "fs/Kconfig" | |
1083 | ||
14cf11af PM |
1084 | source "lib/Kconfig" |
1085 | ||
14cf11af PM |
1086 | source "arch/powerpc/Kconfig.debug" |
1087 | ||
1088 | source "security/Kconfig" | |
1089 | ||
1090 | config KEYS_COMPAT | |
1091 | bool | |
1092 | depends on COMPAT && KEYS | |
1093 | default y | |
1094 | ||
1095 | source "crypto/Kconfig" | |
6f668280 | 1096 | |
1088a209 SM |
1097 | config PPC_LIB_RHEAP |
1098 | bool | |
1099 | ||
bbf45ba5 | 1100 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1101 | |
1102 | source "kernel/livepatch/Kconfig" |