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Commit | Line | Data |
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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 | |
5b9ff027 | 83 | select BUILDTIME_EXTABLE_SORT |
b7e7c37b | 84 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 85 | select ARCH_MIGHT_HAVE_PC_SERIO |
d812c0e1 | 86 | select BINFMT_ELF |
2b68f6ca | 87 | select ARCH_HAS_ELF_RANDOMIZE |
10f85f43 | 88 | select OF |
e6ce1324 | 89 | select OF_EARLY_FLATTREE |
708b7eef | 90 | select OF_RESERVED_MEM |
2b79d696 SR |
91 | select HAVE_FTRACE_MCOUNT_RECORD |
92 | select HAVE_DYNAMIC_FTRACE | |
8c50b72a | 93 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
606576ce | 94 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 95 | select HAVE_FUNCTION_GRAPH_TRACER |
7ac57a89 | 96 | select SYSCTL_EXCEPTION_TRACE |
4febd95a | 97 | select VIRT_TO_BUS if !PPC64 |
ec7748b5 | 98 | select HAVE_IDE |
a1f242ff | 99 | select HAVE_IOREMAP_PROT |
8a18cc0c | 100 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU) |
3f550096 | 101 | select HAVE_KPROBES |
17ce452f | 102 | select HAVE_ARCH_KGDB |
9edddaa2 | 103 | select HAVE_KRETPROBES |
dec2b0d0 | 104 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 105 | select HAVE_MEMBLOCK |
1d7cfe18 | 106 | select HAVE_MEMBLOCK_NODE_MAP |
80d3e8ab | 107 | select HAVE_DMA_API_DEBUG |
4e491d14 | 108 | select HAVE_OPROFILE |
b69ec42b | 109 | select HAVE_DEBUG_KMEMLEAK |
308c09f1 | 110 | select ARCH_HAS_SG_CHAIN |
c2e95c6d | 111 | select GENERIC_ATOMIC64 if PPC32 |
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 |
40565b5a | 164 | select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE |
1d3c1324 | 165 | select HAVE_ARCH_HARDENED_USERCOPY |
22750d98 | 166 | select HAVE_KERNEL_GZIP |
6533b7c1 | 167 | select HAVE_CC_STACKPROTECTOR |
14cf11af | 168 | |
7a332b0c AB |
169 | config GENERIC_CSUM |
170 | def_bool CPU_LITTLE_ENDIAN | |
171 | ||
14cf11af PM |
172 | config EARLY_PRINTK |
173 | bool | |
51d3082f | 174 | default y |
14cf11af | 175 | |
b71d47c1 JB |
176 | config PANIC_TIMEOUT |
177 | int | |
178 | default 180 | |
179 | ||
14cf11af PM |
180 | config COMPAT |
181 | bool | |
182 | default y if PPC64 | |
01e31dba | 183 | select COMPAT_BINFMT_ELF |
48b25c43 | 184 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 185 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
186 | |
187 | config SYSVIPC_COMPAT | |
188 | bool | |
189 | depends on COMPAT && SYSVIPC | |
190 | default y | |
191 | ||
192 | # All PPC32s use generic nvram driver through ppc_md | |
193 | config GENERIC_NVRAM | |
194 | bool | |
195 | default y if PPC32 | |
196 | ||
ae1e9130 | 197 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
198 | bool |
199 | default y | |
200 | ||
201 | config ARCH_MAY_HAVE_PC_FDC | |
202 | bool | |
3484a31f | 203 | default PCI |
14cf11af | 204 | |
08264cbc KG |
205 | config PPC_UDBG_16550 |
206 | bool | |
207 | default n | |
208 | ||
08264cbc KG |
209 | config GENERIC_TBSYNC |
210 | bool | |
211 | default y if PPC32 && SMP | |
212 | default n | |
213 | ||
e65e1fc2 AV |
214 | config AUDIT_ARCH |
215 | bool | |
216 | default y | |
217 | ||
73c9ceab JF |
218 | config GENERIC_BUG |
219 | bool | |
220 | default y | |
221 | depends on BUG | |
222 | ||
b3028878 | 223 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 224 | default y if PMAC_APM_EMU |
b3028878 JB |
225 | bool |
226 | ||
6c5b59b9 DG |
227 | config EPAPR_BOOT |
228 | bool | |
229 | help | |
230 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
231 | default n | |
232 | ||
f4fc4a5b KG |
233 | config DEFAULT_UIMAGE |
234 | bool | |
235 | help | |
236 | Used to allow a board to specify it wants a uImage built by default | |
237 | default n | |
238 | ||
801e4062 JB |
239 | config ARCH_HIBERNATION_POSSIBLE |
240 | bool | |
543b9fd3 JB |
241 | default y |
242 | ||
f4cb5700 JB |
243 | config ARCH_SUSPEND_POSSIBLE |
244 | def_bool y | |
4ffd6952 | 245 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
246 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
247 | || 44x || 40x | |
f4cb5700 | 248 | |
4c75a6f4 BH |
249 | config PPC_DCR_NATIVE |
250 | bool | |
251 | default n | |
252 | ||
253 | config PPC_DCR_MMIO | |
254 | bool | |
255 | default n | |
256 | ||
257 | config PPC_DCR | |
258 | bool | |
259 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
260 | default y | |
261 | ||
4c9d2800 BH |
262 | config PPC_OF_PLATFORM_PCI |
263 | bool | |
373a6da1 | 264 | depends on PCI |
4c9d2800 BH |
265 | depends on PPC64 # not supported on 32 bits yet |
266 | default n | |
267 | ||
6a11f75b | 268 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 269 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
270 | def_bool y |
271 | ||
8b7b80b9 AM |
272 | config ARCH_SUPPORTS_UPROBES |
273 | def_bool y | |
274 | ||
172ae2e7 DK |
275 | config PPC_ADV_DEBUG_REGS |
276 | bool | |
277 | depends on 40x || BOOKE | |
278 | default y | |
279 | ||
280 | config PPC_ADV_DEBUG_IACS | |
281 | int | |
282 | depends on PPC_ADV_DEBUG_REGS | |
283 | default 4 if 44x | |
284 | default 2 | |
285 | ||
286 | config PPC_ADV_DEBUG_DACS | |
287 | int | |
288 | depends on PPC_ADV_DEBUG_REGS | |
289 | default 2 | |
290 | ||
291 | config PPC_ADV_DEBUG_DVCS | |
292 | int | |
293 | depends on PPC_ADV_DEBUG_REGS | |
294 | default 2 if 44x | |
295 | default 0 | |
296 | ||
297 | config PPC_ADV_DEBUG_DAC_RANGE | |
298 | bool | |
299 | depends on PPC_ADV_DEBUG_REGS && 44x | |
300 | default y | |
301 | ||
5e249d45 SP |
302 | config PPC_EMULATE_SSTEP |
303 | bool | |
304 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
305 | ||
1c98025c SW |
306 | config ZONE_DMA32 |
307 | bool | |
308 | default y if PPC64 | |
309 | ||
06ef42a1 KS |
310 | config PGTABLE_LEVELS |
311 | int | |
312 | default 2 if !PPC64 | |
368ced78 | 313 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
314 | default 4 |
315 | ||
14cf11af PM |
316 | source "init/Kconfig" |
317 | ||
dc52ddc0 MH |
318 | source "kernel/Kconfig.freezer" |
319 | ||
a2d2e1ec | 320 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 321 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 322 | |
14cf11af PM |
323 | menu "Kernel options" |
324 | ||
325 | config HIGHMEM | |
326 | bool "High memory support" | |
327 | depends on PPC32 | |
328 | ||
329 | source kernel/Kconfig.hz | |
330 | source kernel/Kconfig.preempt | |
331 | source "fs/Kconfig.binfmt" | |
332 | ||
ba72cb8c MG |
333 | config HUGETLB_PAGE_SIZE_VARIABLE |
334 | bool | |
335 | depends on HUGETLB_PAGE | |
336 | default y | |
337 | ||
14cf11af PM |
338 | config MATH_EMULATION |
339 | bool "Math emulation" | |
4e63f8ed | 340 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
341 | ---help--- |
342 | Some PowerPC chips designed for embedded applications do not have | |
343 | a floating-point unit and therefore do not implement the | |
344 | floating-point instructions in the PowerPC instruction set. If you | |
345 | say Y here, the kernel will include code to emulate a floating-point | |
346 | unit, which will allow programs that use floating-point | |
347 | instructions to run. | |
348 | ||
4e63f8ed BH |
349 | This is also useful to emulate missing (optional) instructions |
350 | such as fsqrt on cores that do have an FPU but do not implement | |
351 | them (such as Freescale BookE). | |
352 | ||
e05c0e81 KH |
353 | choice |
354 | prompt "Math emulation options" | |
355 | default MATH_EMULATION_FULL | |
356 | depends on MATH_EMULATION | |
357 | ||
358 | config MATH_EMULATION_FULL | |
359 | bool "Emulate all the floating point instructions" | |
360 | ---help--- | |
361 | Select this option will enable the kernel to support to emulate | |
362 | all the floating point instructions. If your SoC doesn't have | |
363 | a FPU, you should select this. | |
364 | ||
365 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
366 | bool "Just emulate the FPU unimplemented instructions" | |
367 | ---help--- | |
368 | Select this if you know there does have a hardware FPU on your | |
369 | SoC, but some floating point instructions are not implemented by that. | |
370 | ||
371 | endchoice | |
372 | ||
3d72bbc4 MN |
373 | config PPC_TRANSACTIONAL_MEM |
374 | bool "Transactional Memory support for POWERPC" | |
375 | depends on PPC_BOOK3S_64 | |
376 | depends on SMP | |
7b37a123 MN |
377 | select ALTIVEC |
378 | select VSX | |
3d72bbc4 MN |
379 | default n |
380 | ---help--- | |
381 | Support user-mode Transactional Memory on POWERPC. | |
382 | ||
8c50b72a TD |
383 | config DISABLE_MPROFILE_KERNEL |
384 | bool "Disable use of mprofile-kernel for kernel tracing" | |
385 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
386 | default y | |
387 | help | |
388 | Selecting this options disables use of the mprofile-kernel ABI for | |
389 | kernel tracing. That will cause options such as live patching | |
390 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
391 | be disabled also. | |
392 | ||
393 | If you have a toolchain which supports mprofile-kernel, then you can | |
394 | enable this. Otherwise leave it disabled. If you're not sure, say | |
395 | "N". | |
396 | ||
397 | config MPROFILE_KERNEL | |
398 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
399 | def_bool !DISABLE_MPROFILE_KERNEL | |
400 | ||
43c9127d NP |
401 | config USE_THIN_ARCHIVES |
402 | bool "Build the kernel using thin archives" | |
403 | default n | |
404 | select THIN_ARCHIVES | |
405 | help | |
406 | Build the kernel using thin archives. | |
407 | If you're unsure say N. | |
408 | ||
fb3475e9 FT |
409 | config IOMMU_HELPER |
410 | def_bool PPC64 | |
411 | ||
ec3cf2ec BB |
412 | config SWIOTLB |
413 | bool "SWIOTLB support" | |
414 | default n | |
415 | select IOMMU_HELPER | |
416 | ---help--- | |
417 | Support for IO bounce buffering for systems without an IOMMU. | |
418 | This allows us to DMA to the full physical address space on | |
419 | platforms where the size of a physical address is larger | |
420 | than the bus address. Not all platforms support this. | |
421 | ||
14cf11af PM |
422 | config HOTPLUG_CPU |
423 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 424 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 425 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
426 | ---help--- |
427 | Say Y here to be able to disable and re-enable individual | |
428 | CPUs at runtime on SMP machines. | |
429 | ||
430 | Say N if you are unsure. | |
431 | ||
12633e80 NF |
432 | config ARCH_CPU_PROBE_RELEASE |
433 | def_bool y | |
434 | depends on HOTPLUG_CPU | |
435 | ||
cc57637b YG |
436 | config ARCH_ENABLE_MEMORY_HOTPLUG |
437 | def_bool y | |
438 | ||
a99824f3 BP |
439 | config ARCH_HAS_WALK_MEMORY |
440 | def_bool y | |
441 | ||
1482471d BP |
442 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
443 | def_bool y | |
444 | ||
f2296a3d MS |
445 | config PPC64_SUPPORTS_MEMORY_FAILURE |
446 | bool "Add support for memory hwpoison" | |
447 | depends on PPC_BOOK3S_64 | |
448 | default "y" if PPC_POWERNV | |
449 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
450 | ||
14cf11af | 451 | config KEXEC |
642e56ff | 452 | bool "kexec system call" |
96eea642 | 453 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 454 | select KEXEC_CORE |
14cf11af PM |
455 | help |
456 | kexec is a system call that implements the ability to shutdown your | |
457 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 458 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
459 | you can start any kernel with it, not just Linux. |
460 | ||
1f1332f7 | 461 | The name comes from the similarity to the exec system call. |
14cf11af PM |
462 | |
463 | It is an ongoing process to be certain the hardware in a machine | |
464 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
465 | initially work for you. As of this writing the exact hardware |
466 | interface is strongly in flux, so no good recommendation can be | |
467 | made. | |
14cf11af | 468 | |
80f60e50 TJB |
469 | config KEXEC_FILE |
470 | bool "kexec file based system call" | |
471 | select KEXEC_CORE | |
467d2782 | 472 | select HAVE_IMA_KEXEC |
80f60e50 TJB |
473 | select BUILD_BIN2C |
474 | depends on PPC64 | |
475 | depends on CRYPTO=y | |
476 | depends on CRYPTO_SHA256=y | |
477 | help | |
478 | This is a new version of the kexec system call. This call is | |
479 | file based and takes in file descriptors as system call arguments | |
480 | for kernel and initramfs as opposed to a list of segments as is the | |
481 | case for the older kexec call. | |
482 | ||
4c91bd6e KH |
483 | config RELOCATABLE |
484 | bool "Build a relocatable kernel" | |
485 | depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE)) | |
486 | select NONSTATIC_KERNEL | |
487 | help | |
488 | This builds a kernel image that is capable of running at the | |
489 | location the kernel is loaded at. For ppc32, there is no any | |
490 | alignment restrictions, and this feature is a superset of | |
491 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
492 | 16k-aligned base address. The kernel is linked as a | |
493 | position-independent executable (PIE) and contains dynamic relocations | |
494 | which are processed early in the bootup process. | |
495 | ||
496 | One use is for the kexec on panic case where the recovery kernel | |
497 | must live at a different physical address than the primary | |
498 | kernel. | |
499 | ||
500 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
501 | it has been loaded at and the compile time physical addresses | |
502 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
503 | setting can still be useful to bootwrappers that need to know the | |
504 | load address of the kernel (eg. u-boot/mkimage). | |
505 | ||
70839d20 NP |
506 | config RELOCATABLE_TEST |
507 | bool "Test relocatable kernel" | |
508 | depends on (PPC64 && RELOCATABLE) | |
509 | default n | |
510 | help | |
511 | This runs the relocatable kernel at the address it was initially | |
512 | loaded at, which tends to be non-zero and therefore test the | |
513 | relocation code. | |
514 | ||
e8625d46 | 515 | config CRASH_DUMP |
3420b5da | 516 | bool "Build a kdump crash kernel" |
47da4219 | 517 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 518 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
519 | help |
520 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
521 | The same kernel binary can be used as production kernel and dump |
522 | capture kernel. | |
e8625d46 | 523 | |
eb39c880 MS |
524 | config FA_DUMP |
525 | bool "Firmware-assisted dump" | |
da665885 | 526 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC_CORE |
242f271c | 527 | help |
eb39c880 MS |
528 | A robust mechanism to get reliable kernel crash dump with |
529 | assistance from firmware. This approach does not use kexec, | |
530 | instead firmware assists in booting the kdump kernel | |
531 | while preserving memory contents. Firmware-assisted dump | |
532 | is meant to be a kdump replacement offering robustness and | |
533 | speed not possible without system firmware assistance. | |
242f271c MA |
534 | |
535 | If unsure, say "N" | |
536 | ||
14cf11af PM |
537 | config IRQ_ALL_CPUS |
538 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 539 | depends on SMP |
14cf11af PM |
540 | help |
541 | This option gives the kernel permission to distribute IRQs across | |
542 | multiple CPUs. Saying N here will route all IRQs to the first | |
543 | CPU. Generally saying Y is safe, although some problems have been | |
544 | reported with SMP Power Macintoshes with this option enabled. | |
545 | ||
ffa27b6b AW |
546 | config NUMA |
547 | bool "NUMA support" | |
548 | depends on PPC64 | |
549 | default y if SMP && PPC_PSERIES | |
550 | ||
c80d79d7 YG |
551 | config NODES_SHIFT |
552 | int | |
ea55bf29 | 553 | default "8" if PPC64 |
c80d79d7 YG |
554 | default "4" |
555 | depends on NEED_MULTIPLE_NODES | |
556 | ||
8c272261 NA |
557 | config USE_PERCPU_NUMA_NODE_ID |
558 | def_bool y | |
559 | depends on NUMA | |
560 | ||
64bb80d8 NA |
561 | config HAVE_MEMORYLESS_NODES |
562 | def_bool y | |
563 | depends on NUMA | |
564 | ||
14cf11af PM |
565 | config ARCH_SELECT_MEMORY_MODEL |
566 | def_bool y | |
567 | depends on PPC64 | |
568 | ||
569 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
570 | def_bool y |
571 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 572 | |
45fb6cea | 573 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 574 | def_bool y |
9100b205 | 575 | depends on PPC64 |
d29eff7b | 576 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 577 | |
45fb6cea | 578 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 579 | def_bool y |
78bde53e | 580 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 581 | |
5a1eb5c4 | 582 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 583 | bool |
5a1eb5c4 | 584 | |
f6853eb5 ME |
585 | config ILLEGAL_POINTER_VALUE |
586 | hex | |
587 | # This is roughly half way between the top of user space and the bottom | |
588 | # of kernel space, which seems about as good as we can get. | |
589 | default 0x5deadbeef0000000 if PPC64 | |
590 | default 0 | |
591 | ||
c67c3cb4 | 592 | source "mm/Kconfig" |
14cf11af | 593 | |
7e9191da MK |
594 | config ARCH_MEMORY_PROBE |
595 | def_bool y | |
596 | depends on MEMORY_HOTPLUG | |
597 | ||
75167957 AW |
598 | # Some NUMA nodes have memory ranges that span |
599 | # other nodes. Even though a pfn is valid and | |
600 | # between a node's start and end pfns, it may not | |
601 | # reside on that node. See memmap_init_zone() | |
602 | # for details. | |
603 | config NODES_SPAN_OTHER_NODES | |
604 | def_bool y | |
605 | depends on NEED_MULTIPLE_NODES | |
606 | ||
e1240122 YT |
607 | config STDBINUTILS |
608 | bool "Using standard binutils settings" | |
609 | depends on 44x | |
610 | default y | |
611 | help | |
612 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
613 | Note, that kernel will be able to run only those applications, | |
614 | which had been compiled using binutils later than 2.17.50.0.3 with | |
615 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
616 | the older binutils, you can patch them with a trivial patch, which | |
617 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
618 | ||
ca9153a3 IY |
619 | choice |
620 | prompt "Page size" | |
621 | default PPC_4K_PAGES | |
3c726f8d | 622 | help |
ca9153a3 IY |
623 | Select the kernel logical page size. Increasing the page size |
624 | will reduce software overhead at each page boundary, allow | |
625 | hardware prefetch mechanisms to be more effective, and allow | |
626 | larger dma transfers increasing IO efficiency and reducing | |
627 | overhead. However the utilization of memory will increase. | |
628 | For example, each cached file will using a multiple of the | |
629 | page size to hold its contents and the difference between the | |
630 | end of file and the end of page is wasted. | |
631 | ||
632 | Some dedicated systems, such as software raid serving with | |
633 | accelerated calculations, have shown significant increases. | |
634 | ||
635 | If you configure a 64 bit kernel for 64k pages but the | |
636 | processor does not support them, then the kernel will simulate | |
637 | them with 4k pages, loading them on demand, but with the | |
638 | reduced software overhead and larger internal fragmentation. | |
639 | For the 32 bit kernel, a large page option will not be offered | |
640 | unless it is supported by the configured processor. | |
641 | ||
642 | If unsure, choose 4K_PAGES. | |
643 | ||
644 | config PPC_4K_PAGES | |
645 | bool "4k page size" | |
19f97c98 | 646 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
647 | |
648 | config PPC_16K_PAGES | |
55f8b5b8 ME |
649 | bool "16k page size" |
650 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
651 | |
652 | config PPC_64K_PAGES | |
55f8b5b8 ME |
653 | bool "64k page size" |
654 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
19f97c98 | 655 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 656 | |
e1240122 | 657 | config PPC_256K_PAGES |
55f8b5b8 ME |
658 | bool "256k page size" |
659 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
660 | help |
661 | Make the page size 256k. | |
662 | ||
663 | As the ELF standard only requires alignment to support page | |
664 | sizes up to 64k, you will need to compile all of your user | |
665 | space applications with a non-standard binutils settings | |
666 | (see the STDBINUTILS description for details). | |
667 | ||
668 | Say N unless you know what you are doing. | |
669 | ||
ca9153a3 | 670 | endchoice |
3c726f8d | 671 | |
53bcddb9 SR |
672 | config FORCE_MAX_ZONEORDER |
673 | int "Maximum zone order" | |
a7ee5395 | 674 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 675 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 676 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
677 | default "13" if PPC64 && !PPC_64K_PAGES |
678 | range 9 64 if PPC32 && PPC_16K_PAGES | |
679 | default "9" if PPC32 && PPC_16K_PAGES | |
680 | range 7 64 if PPC32 && PPC_64K_PAGES | |
681 | default "7" if PPC32 && PPC_64K_PAGES | |
682 | range 5 64 if PPC32 && PPC_256K_PAGES | |
683 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 684 | range 11 64 |
53bcddb9 SR |
685 | default "11" |
686 | help | |
687 | The kernel memory allocator divides physically contiguous memory | |
688 | blocks into "zones", where each zone is a power of two number of | |
689 | pages. This option selects the largest power of two that the kernel | |
690 | keeps in the memory allocator. If you need to allocate very large | |
691 | blocks of physically contiguous memory, then you may need to | |
692 | increase this value. | |
693 | ||
694 | This config option is actually maximum order plus one. For example, | |
695 | a value of 11 means that the largest free memory block is 2^10 pages. | |
696 | ||
697 | The page size is not necessarily 4KB. For example, on 64-bit | |
698 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
699 | this in mind when choosing a value for this option. | |
700 | ||
fa28237c PM |
701 | config PPC_SUBPAGE_PROT |
702 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 703 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
704 | help |
705 | This option adds support for a system call to allow user programs | |
706 | to set access permissions (read/write, readonly, or no access) | |
707 | on the 4k subpages of each 64k page. | |
708 | ||
e83d0169 IM |
709 | config PPC_COPRO_BASE |
710 | bool | |
711 | default n | |
712 | ||
14cf11af PM |
713 | config SCHED_SMT |
714 | bool "SMT (Hyperthreading) scheduler support" | |
715 | depends on PPC64 && SMP | |
14cf11af PM |
716 | help |
717 | SMT scheduler support improves the CPU scheduler's decision making | |
718 | when dealing with POWER5 cpus at a cost of slightly increased | |
719 | overhead in some places. If unsure say N here. | |
720 | ||
b92a66a6 MN |
721 | config PPC_DENORMALISATION |
722 | bool "PowerPC denormalisation exception handling" | |
723 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 724 | default "y" if PPC_POWERNV |
b92a66a6 MN |
725 | ---help--- |
726 | Add support for handling denormalisation of single precision | |
727 | values. Useful for bare metal only. If unsure say Y here. | |
728 | ||
14cf11af PM |
729 | config CMDLINE_BOOL |
730 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
731 | |
732 | config CMDLINE | |
733 | string "Initial kernel command string" | |
734 | depends on CMDLINE_BOOL | |
735 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
736 | help | |
737 | On some platforms, there is currently no way for the boot loader to | |
738 | pass arguments to the kernel. For these platforms, you can supply | |
739 | some command-line options at build time by entering them here. In | |
740 | most cases you will need to specify the root device here. | |
741 | ||
eb3b80f6 SS |
742 | config CMDLINE_FORCE |
743 | bool "Always use the default kernel command string" | |
744 | depends on CMDLINE_BOOL | |
745 | help | |
746 | Always use the default kernel command string, even if the boot | |
747 | loader passes other arguments to the kernel. | |
748 | This is useful if you cannot or don't want to change the | |
749 | command-line options your boot loader passes to the kernel. | |
750 | ||
c356aa45 GL |
751 | config EXTRA_TARGETS |
752 | string "Additional default image types" | |
753 | help | |
754 | List additional targets to be built by the bootwrapper here (separated | |
755 | by spaces). This is useful for targets that depend of device tree | |
756 | files in the .dts directory. | |
757 | ||
758 | Targets in this list will be build as part of the default build | |
759 | target, or when the user does a 'make zImage' or a | |
760 | 'make zImage.initrd'. | |
761 | ||
762 | If unsure, leave blank | |
763 | ||
b28f5081 JB |
764 | config ARCH_WANTS_FREEZER_CONTROL |
765 | def_bool y | |
766 | depends on ADB_PMU | |
767 | ||
14cf11af | 768 | source kernel/power/Kconfig |
14cf11af PM |
769 | |
770 | config SECCOMP | |
771 | bool "Enable seccomp to safely compute untrusted bytecode" | |
772 | depends on PROC_FS | |
773 | default y | |
774 | help | |
775 | This kernel feature is useful for number crunching applications | |
776 | that may need to compute untrusted bytecode during their | |
777 | execution. By using pipes or other transports made available to | |
778 | the process as file descriptors supporting the read/write | |
779 | syscalls, it's possible to isolate those applications in | |
780 | their own address space using seccomp. Once seccomp is | |
781 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
782 | and the task is only allowed to execute a few safe syscalls | |
783 | defined by each seccomp mode. | |
784 | ||
785 | If unsure, say Y. Only embedded should say N here. | |
786 | ||
787 | endmenu | |
788 | ||
789 | config ISA_DMA_API | |
790 | bool | |
3d066d77 | 791 | default PCI |
14cf11af PM |
792 | |
793 | menu "Bus options" | |
794 | ||
795 | config ISA | |
796 | bool "Support for ISA-bus hardware" | |
933ee711 | 797 | depends on PPC_CHRP |
f9bd170a | 798 | select PPC_I8259 |
14cf11af PM |
799 | help |
800 | Find out whether you have ISA slots on your motherboard. ISA is the | |
801 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
802 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
803 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
804 | embedded board, consult your board documentation. | |
14cf11af | 805 | |
5ac6da66 CL |
806 | config ZONE_DMA |
807 | bool | |
808 | default y | |
809 | ||
af407c6d FT |
810 | config NEED_DMA_MAP_STATE |
811 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
812 | ||
e32205eb FT |
813 | config NEED_SG_DMA_LENGTH |
814 | def_bool y | |
815 | ||
14cf11af PM |
816 | config GENERIC_ISA_DMA |
817 | bool | |
1927445a | 818 | depends on ISA_DMA_API |
14cf11af PM |
819 | default y |
820 | ||
25635c71 PM |
821 | config PPC_INDIRECT_PCI |
822 | bool | |
823 | depends on PCI | |
63dafe57 | 824 | default y if 40x || 44x |
25635c71 PM |
825 | default n |
826 | ||
14cf11af PM |
827 | config EISA |
828 | bool | |
829 | ||
830 | config SBUS | |
831 | bool | |
832 | ||
08264cbc KG |
833 | config FSL_SOC |
834 | bool | |
835 | ||
55c44991 RZ |
836 | config FSL_PCI |
837 | bool | |
838 | select PPC_INDIRECT_PCI | |
d0839118 | 839 | select PCI_QUIRKS |
55c44991 | 840 | |
4ffd6952 AV |
841 | config FSL_PMC |
842 | bool | |
843 | default y | |
844 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
845 | help | |
846 | Freescale MPC85xx/MPC86xx power management controller support | |
847 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
848 | ||
d164f6d4 VG |
849 | config PPC4xx_CPM |
850 | bool | |
851 | default y | |
852 | depends on SUSPEND && (44x || 40x) | |
853 | help | |
854 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
855 | It also enables support for two different idle states (idle-wait | |
856 | and idle-doze). | |
857 | ||
2a706919 SR |
858 | config 4xx_SOC |
859 | bool | |
860 | ||
acaa7aa3 | 861 | config FSL_LBC |
3ab8f2a2 | 862 | bool "Freescale Local Bus support" |
acaa7aa3 | 863 | help |
3ab8f2a2 RZ |
864 | Enables reporting of errors from the Freescale local bus |
865 | controller. Also contains some common code used by | |
866 | drivers for specific local bus peripherals. | |
acaa7aa3 | 867 | |
83ff9dcf AV |
868 | config FSL_GTM |
869 | bool | |
870 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
871 | help | |
872 | Freescale General-purpose Timers support | |
873 | ||
14cf11af PM |
874 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
875 | config MCA | |
876 | bool | |
877 | ||
b500563b JR |
878 | # Platforms that what PCI turned unconditionally just do select PCI |
879 | # in their config node. Platforms that want to choose at config | |
880 | # time should select PPC_PCI_CHOICE | |
881 | config PPC_PCI_CHOICE | |
882 | bool | |
883 | ||
14cf11af | 884 | config PCI |
b500563b JR |
885 | bool "PCI support" if PPC_PCI_CHOICE |
886 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 887 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 888 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 889 | select GENERIC_PCI_IOMAP |
14cf11af PM |
890 | help |
891 | Find out whether your system includes a PCI bus. PCI is the name of | |
892 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
893 | your box. If you say Y here, the kernel will include drivers and | |
894 | infrastructure code to support PCI bus devices. | |
895 | ||
896 | config PCI_DOMAINS | |
36e23590 MW |
897 | def_bool PCI |
898 | ||
899 | config PCI_SYSCALL | |
900 | def_bool PCI | |
14cf11af | 901 | |
14cf11af PM |
902 | config PCI_QSPAN |
903 | bool "QSpan PCI" | |
904 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 905 | select PPC_I8259 |
14cf11af PM |
906 | help |
907 | Say Y here if you have a system based on a Motorola 8xx-series | |
908 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
909 | ||
910 | config PCI_8260 | |
911 | bool | |
912 | depends on PCI && 8260 | |
25635c71 | 913 | select PPC_INDIRECT_PCI |
14cf11af PM |
914 | default y |
915 | ||
14cf11af PM |
916 | source "drivers/pci/Kconfig" |
917 | ||
918 | source "drivers/pcmcia/Kconfig" | |
919 | ||
f1f389d5 ZW |
920 | config HAS_RAPIDIO |
921 | bool | |
922 | default n | |
923 | ||
924 | config RAPIDIO | |
56abde72 | 925 | tristate "RapidIO support" |
388b78ad | 926 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
927 | help |
928 | If you say Y here, the kernel will include drivers and | |
929 | infrastructure code to support RapidIO interconnect devices. | |
930 | ||
388b78ad AB |
931 | config FSL_RIO |
932 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 933 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
934 | default "n" |
935 | ---help--- | |
936 | Include support for RapidIO controller on Freescale embedded | |
937 | processors (MPC8548, MPC8641, etc). | |
938 | ||
f1f389d5 ZW |
939 | source "drivers/rapidio/Kconfig" |
940 | ||
14cf11af PM |
941 | endmenu |
942 | ||
0f890c8d SP |
943 | config NONSTATIC_KERNEL |
944 | bool | |
945 | default n | |
946 | ||
14cf11af PM |
947 | menu "Advanced setup" |
948 | depends on PPC32 | |
949 | ||
950 | config ADVANCED_OPTIONS | |
951 | bool "Prompt for advanced kernel configuration options" | |
952 | help | |
953 | This option will enable prompting for a variety of advanced kernel | |
954 | configuration options. These options can cause the kernel to not | |
955 | work if they are set incorrectly, but can be used to optimize certain | |
956 | aspects of kernel memory management. | |
957 | ||
958 | Unless you know what you are doing, say N here. | |
959 | ||
960 | comment "Default settings for advanced configuration options are used" | |
961 | depends on !ADVANCED_OPTIONS | |
962 | ||
14cf11af PM |
963 | config LOWMEM_SIZE_BOOL |
964 | bool "Set maximum low memory" | |
965 | depends on ADVANCED_OPTIONS | |
966 | help | |
967 | This option allows you to set the maximum amount of memory which | |
968 | will be used as "low memory", that is, memory which the kernel can | |
969 | access directly, without having to set up a kernel virtual mapping. | |
970 | This can be useful in optimizing the layout of kernel virtual | |
971 | memory. | |
972 | ||
973 | Say N here unless you know what you are doing. | |
974 | ||
975 | config LOWMEM_SIZE | |
976 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
977 | default "0x30000000" | |
978 | ||
96051465 TP |
979 | config LOWMEM_CAM_NUM_BOOL |
980 | bool "Set number of CAMs to use to map low memory" | |
981 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
982 | help | |
983 | This option allows you to set the maximum number of CAM slots that | |
984 | will be used to map low memory. There are a limited number of slots | |
985 | available and even more limited number that will fit in the L1 MMU. | |
986 | However, using more entries will allow mapping more low memory. This | |
987 | can be useful in optimizing the layout of kernel virtual memory. | |
988 | ||
989 | Say N here unless you know what you are doing. | |
990 | ||
991 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 992 | depends on FSL_BOOKE |
96051465 TP |
993 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
994 | default 3 | |
995 | ||
0f890c8d | 996 | config DYNAMIC_MEMSTART |
642e56ff KC |
997 | bool "Enable page aligned dynamic load address for kernel" |
998 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
999 | select NONSTATIC_KERNEL |
1000 | help | |
1001 | This option enables the kernel to be loaded at any page aligned | |
1002 | physical address. The kernel creates a mapping from KERNELBASE to | |
1003 | the address where the kernel is loaded. The page size here implies | |
1004 | the TLB page size of the mapping for kernel on the particular platform. | |
1005 | Please refer to the init code for finding the TLB page size. | |
1006 | ||
1007 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1008 | kernel image, where the only restriction is the page aligned kernel | |
1009 | load address. When this option is enabled, the compile time physical | |
1010 | address CONFIG_PHYSICAL_START is ignored. | |
1011 | ||
9c5f7d39 SP |
1012 | This option is overridden by CONFIG_RELOCATABLE |
1013 | ||
37dd2bad KG |
1014 | config PAGE_OFFSET_BOOL |
1015 | bool "Set custom page offset address" | |
1016 | depends on ADVANCED_OPTIONS | |
1017 | help | |
1018 | This option allows you to set the kernel virtual address at which | |
1019 | the kernel will map low memory. This can be useful in optimizing | |
1020 | the virtual memory layout of the system. | |
1021 | ||
1022 | Say N here unless you know what you are doing. | |
1023 | ||
1024 | config PAGE_OFFSET | |
1025 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1026 | default "0xc0000000" | |
1027 | ||
14cf11af PM |
1028 | config KERNEL_START_BOOL |
1029 | bool "Set custom kernel base address" | |
1030 | depends on ADVANCED_OPTIONS | |
1031 | help | |
1032 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1033 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1034 | however there are times (like kdump) that one might not want them | |
1035 | to be the same. | |
14cf11af PM |
1036 | |
1037 | Say N here unless you know what you are doing. | |
1038 | ||
1039 | config KERNEL_START | |
1040 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1041 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1042 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1043 | default "0xc0000000" |
1044 | ||
37dd2bad KG |
1045 | config PHYSICAL_START_BOOL |
1046 | bool "Set physical address where the kernel is loaded" | |
1047 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1048 | help | |
1049 | This gives the physical address where the kernel is loaded. | |
1050 | ||
1051 | Say N here unless you know what you are doing. | |
1052 | ||
1053 | config PHYSICAL_START | |
1054 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1055 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1056 | default "0x00000000" |
1057 | ||
1058 | config PHYSICAL_ALIGN | |
1059 | hex | |
c8f3570b | 1060 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1061 | help |
1062 | This value puts the alignment restrictions on physical address | |
1063 | where kernel is loaded and run from. Kernel is compiled for an | |
1064 | address which meets above alignment restriction. | |
1065 | ||
14cf11af PM |
1066 | config TASK_SIZE_BOOL |
1067 | bool "Set custom user task size" | |
1068 | depends on ADVANCED_OPTIONS | |
1069 | help | |
1070 | This option allows you to set the amount of virtual address space | |
1071 | allocated to user tasks. This can be useful in optimizing the | |
1072 | virtual memory layout of the system. | |
1073 | ||
1074 | Say N here unless you know what you are doing. | |
1075 | ||
1076 | config TASK_SIZE | |
1077 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1078 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1079 | default "0xc0000000" |
14cf11af | 1080 | |
84532a0f BH |
1081 | config CONSISTENT_SIZE_BOOL |
1082 | bool "Set custom consistent memory pool size" | |
1083 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1084 | help | |
1085 | This option allows you to set the size of the | |
1086 | consistent memory pool. This pool of virtual memory | |
1087 | is used to make consistent memory allocations. | |
1088 | ||
1089 | config CONSISTENT_SIZE | |
1090 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1091 | default "0x00200000" if NOT_COHERENT_CACHE | |
1092 | ||
14cf11af PM |
1093 | config PIN_TLB |
1094 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1095 | depends on ADVANCED_OPTIONS && 8xx | |
62f64b49 CL |
1096 | |
1097 | config PIN_TLB_IMMR | |
1098 | bool "Pinned TLB for IMMR" | |
1099 | depends on PIN_TLB | |
1100 | default y | |
14cf11af PM |
1101 | endmenu |
1102 | ||
cabb5587 | 1103 | if PPC64 |
bdbc29c1 | 1104 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1105 | config PAGE_OFFSET |
1106 | hex | |
1107 | default "0xc000000000000000" | |
cabb5587 SR |
1108 | config KERNEL_START |
1109 | hex | |
eeb2d218 | 1110 | default "0xc000000000000000" |
37dd2bad KG |
1111 | config PHYSICAL_START |
1112 | hex | |
37dd2bad | 1113 | default "0x00000000" |
cabb5587 SR |
1114 | endif |
1115 | ||
a4da0d50 ME |
1116 | config ARCH_RANDOM |
1117 | def_bool n | |
1118 | ||
14cf11af PM |
1119 | source "net/Kconfig" |
1120 | ||
1121 | source "drivers/Kconfig" | |
1122 | ||
1123 | source "fs/Kconfig" | |
1124 | ||
14cf11af PM |
1125 | source "lib/Kconfig" |
1126 | ||
14cf11af PM |
1127 | source "arch/powerpc/Kconfig.debug" |
1128 | ||
1129 | source "security/Kconfig" | |
1130 | ||
1131 | config KEYS_COMPAT | |
1132 | bool | |
1133 | depends on COMPAT && KEYS | |
1134 | default y | |
1135 | ||
1136 | source "crypto/Kconfig" | |
6f668280 | 1137 | |
1088a209 SM |
1138 | config PPC_LIB_RHEAP |
1139 | bool | |
1140 | ||
bbf45ba5 | 1141 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1142 | |
1143 | source "kernel/livepatch/Kconfig" |