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 | ||
2578bfae SR |
15 | config WORD_SIZE |
16 | int | |
17 | default 64 if PPC64 | |
18 | default 32 if !PPC64 | |
19 | ||
600715dc JF |
20 | config ARCH_PHYS_ADDR_T_64BIT |
21 | def_bool PPC64 || PHYS_64BIT | |
22 | ||
787d44ca FT |
23 | config ARCH_DMA_ADDR_T_64BIT |
24 | def_bool ARCH_PHYS_ADDR_T_64BIT | |
25 | ||
14cf11af PM |
26 | config MMU |
27 | bool | |
28 | default y | |
29 | ||
c2a7e818 | 30 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
31 | def_bool PPC64 |
32 | ||
c2a7e818 | 33 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 34 | def_bool PPC64 |
35 | ||
551b81f2 ME |
36 | config NR_IRQS |
37 | int "Number of virtual interrupt numbers" | |
859aefc5 | 38 | range 32 32768 |
551b81f2 ME |
39 | default "512" |
40 | help | |
41 | This defines the number of virtual interrupt numbers the kernel | |
42 | can manage. Virtual interrupt numbers are what you see in | |
43 | /proc/interrupts. If you configure your system to have too few, | |
44 | drivers will fail to load or worse - handle with care. | |
45 | ||
fd3e0bbc CH |
46 | config STACKTRACE_SUPPORT |
47 | bool | |
48 | default y | |
49 | ||
01f4b8b8 AB |
50 | config HAVE_LATENCYTOP_SUPPORT |
51 | def_bool y | |
52 | ||
945feb17 BH |
53 | config TRACE_IRQFLAGS_SUPPORT |
54 | bool | |
945feb17 BH |
55 | default y |
56 | ||
57 | config LOCKDEP_SUPPORT | |
58 | bool | |
59 | default y | |
60 | ||
14cf11af PM |
61 | config RWSEM_GENERIC_SPINLOCK |
62 | bool | |
63 | ||
64 | config RWSEM_XCHGADD_ALGORITHM | |
65 | bool | |
66 | default y | |
67 | ||
95c354fe NP |
68 | config GENERIC_LOCKBREAK |
69 | bool | |
70 | default y | |
71 | depends on SMP && PREEMPT | |
72 | ||
f0d1b0b3 DH |
73 | config ARCH_HAS_ILOG2_U32 |
74 | bool | |
ef55d53c | 75 | default y |
f0d1b0b3 DH |
76 | |
77 | config ARCH_HAS_ILOG2_U64 | |
78 | bool | |
ef55d53c | 79 | default y if 64BIT |
f0d1b0b3 | 80 | |
e779b2f9 AM |
81 | config GENERIC_HWEIGHT |
82 | bool | |
83 | default y | |
84 | ||
817820b0 BH |
85 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
86 | bool | |
87 | ||
14cf11af PM |
88 | config PPC |
89 | bool | |
90 | default y | |
b7e7c37b | 91 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 92 | select ARCH_MIGHT_HAVE_PC_SERIO |
d812c0e1 | 93 | select BINFMT_ELF |
2b68f6ca | 94 | select ARCH_HAS_ELF_RANDOMIZE |
10f85f43 | 95 | select OF |
e6ce1324 | 96 | select OF_EARLY_FLATTREE |
708b7eef | 97 | select OF_RESERVED_MEM |
2b79d696 SR |
98 | select HAVE_FTRACE_MCOUNT_RECORD |
99 | select HAVE_DYNAMIC_FTRACE | |
606576ce | 100 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 101 | select HAVE_FUNCTION_GRAPH_TRACER |
7ac57a89 | 102 | select SYSCTL_EXCEPTION_TRACE |
7444a72e | 103 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4febd95a | 104 | select VIRT_TO_BUS if !PPC64 |
ec7748b5 | 105 | select HAVE_IDE |
a1f242ff | 106 | select HAVE_IOREMAP_PROT |
0b5e6661 | 107 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN |
3f550096 | 108 | select HAVE_KPROBES |
17ce452f | 109 | select HAVE_ARCH_KGDB |
9edddaa2 | 110 | select HAVE_KRETPROBES |
dec2b0d0 | 111 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 112 | select HAVE_MEMBLOCK |
1d7cfe18 | 113 | select HAVE_MEMBLOCK_NODE_MAP |
46bab4e4 | 114 | select HAVE_DMA_ATTRS |
80d3e8ab | 115 | select HAVE_DMA_API_DEBUG |
4e491d14 | 116 | select HAVE_OPROFILE |
b69ec42b | 117 | select HAVE_DEBUG_KMEMLEAK |
308c09f1 | 118 | select ARCH_HAS_SG_CHAIN |
c2e95c6d | 119 | select GENERIC_ATOMIC64 if PPC32 |
7463449b | 120 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
cdd6c482 | 121 | select HAVE_PERF_EVENTS |
359e4284 | 122 | select HAVE_REGS_AND_STACK_ACCESS_API |
5aae8a53 | 123 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
c1d7e01d | 124 | select ARCH_WANT_IPC_PARSE_VERSION |
ad5b7f13 | 125 | select SPARSE_IRQ |
cc79ca69 | 126 | select IRQ_DOMAIN |
433c9c67 TG |
127 | select GENERIC_IRQ_SHOW |
128 | select GENERIC_IRQ_SHOW_LEVEL | |
e8d2c473 | 129 | select IRQ_FORCED_THREADING |
26723911 | 130 | select HAVE_RCU_TABLE_FREE if SMP |
02424d89 | 131 | select HAVE_SYSCALL_TRACEPOINTS |
eb84bab0 | 132 | select HAVE_BPF_JIT |
ac5f89c7 | 133 | select HAVE_ARCH_JUMP_LABEL |
df013ffb | 134 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
957e3fac | 135 | select ARCH_HAS_GCOV_PROFILE_ALL |
17e32eac | 136 | select GENERIC_SMP_IDLE_THREAD |
b9ed27df | 137 | select GENERIC_CMOS_UPDATE |
70639421 | 138 | select GENERIC_TIME_VSYSCALL_OLD |
b9ed27df | 139 | select GENERIC_CLOCKEVENTS |
0d948730 PM |
140 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
141 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
1629372c PM |
142 | select GENERIC_STRNCPY_FROM_USER |
143 | select GENERIC_STRNLEN_USER | |
786d35d4 DH |
144 | select HAVE_MOD_ARCH_SPECIFIC |
145 | select MODULES_USE_ELF_RELA | |
0bcfe540 | 146 | select CLONE_BACKWARDS |
fe3955cb | 147 | select ARCH_USE_BUILTIN_BSWAP |
0980caea | 148 | select OLD_SIGSUSPEND |
09a4d5d0 | 149 | select OLD_SIGACTION if PPC32 |
d1a1dc0b | 150 | select HAVE_DEBUG_STACKOVERFLOW |
62d26c82 | 151 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
3405d230 | 152 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 |
7a017721 | 153 | select HAVE_ARCH_AUDITSYSCALL |
4badad35 | 154 | select ARCH_SUPPORTS_ATOMIC_RMW |
a75c380c | 155 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
10239733 | 156 | select NO_BOOTMEM |
b30e7590 | 157 | select HAVE_GENERIC_RCU_GUP |
c54b2bf1 | 158 | select HAVE_PERF_EVENTS_NMI if PPC64 |
b01aec9b BP |
159 | select EDAC_SUPPORT |
160 | select EDAC_ATOMIC_SCRUB | |
817820b0 | 161 | select ARCH_HAS_DMA_SET_COHERENT_MASK |
21266be9 | 162 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
2449acc5 | 163 | select HAVE_ARCH_SECCOMP_FILTER |
14cf11af | 164 | |
7a332b0c AB |
165 | config GENERIC_CSUM |
166 | def_bool CPU_LITTLE_ENDIAN | |
167 | ||
14cf11af PM |
168 | config EARLY_PRINTK |
169 | bool | |
51d3082f | 170 | default y |
14cf11af | 171 | |
b71d47c1 JB |
172 | config PANIC_TIMEOUT |
173 | int | |
174 | default 180 | |
175 | ||
14cf11af PM |
176 | config COMPAT |
177 | bool | |
178 | default y if PPC64 | |
01e31dba | 179 | select COMPAT_BINFMT_ELF |
48b25c43 | 180 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 181 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
182 | |
183 | config SYSVIPC_COMPAT | |
184 | bool | |
185 | depends on COMPAT && SYSVIPC | |
186 | default y | |
187 | ||
188 | # All PPC32s use generic nvram driver through ppc_md | |
189 | config GENERIC_NVRAM | |
190 | bool | |
191 | default y if PPC32 | |
192 | ||
ae1e9130 | 193 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
194 | bool |
195 | default y | |
196 | ||
197 | config ARCH_MAY_HAVE_PC_FDC | |
198 | bool | |
3484a31f | 199 | default PCI |
14cf11af | 200 | |
08264cbc KG |
201 | config PPC_UDBG_16550 |
202 | bool | |
203 | default n | |
204 | ||
08264cbc KG |
205 | config GENERIC_TBSYNC |
206 | bool | |
207 | default y if PPC32 && SMP | |
208 | default n | |
209 | ||
e65e1fc2 AV |
210 | config AUDIT_ARCH |
211 | bool | |
212 | default y | |
213 | ||
73c9ceab JF |
214 | config GENERIC_BUG |
215 | bool | |
216 | default y | |
217 | depends on BUG | |
218 | ||
b3028878 | 219 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 220 | default y if PMAC_APM_EMU |
b3028878 JB |
221 | bool |
222 | ||
6c5b59b9 DG |
223 | config EPAPR_BOOT |
224 | bool | |
225 | help | |
226 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
227 | default n | |
228 | ||
f4fc4a5b KG |
229 | config DEFAULT_UIMAGE |
230 | bool | |
231 | help | |
232 | Used to allow a board to specify it wants a uImage built by default | |
233 | default n | |
234 | ||
801e4062 JB |
235 | config ARCH_HIBERNATION_POSSIBLE |
236 | bool | |
543b9fd3 JB |
237 | default y |
238 | ||
f4cb5700 JB |
239 | config ARCH_SUSPEND_POSSIBLE |
240 | def_bool y | |
4ffd6952 | 241 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
242 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
243 | || 44x || 40x | |
f4cb5700 | 244 | |
4c75a6f4 BH |
245 | config PPC_DCR_NATIVE |
246 | bool | |
247 | default n | |
248 | ||
249 | config PPC_DCR_MMIO | |
250 | bool | |
251 | default n | |
252 | ||
253 | config PPC_DCR | |
254 | bool | |
255 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
256 | default y | |
257 | ||
4c9d2800 BH |
258 | config PPC_OF_PLATFORM_PCI |
259 | bool | |
373a6da1 | 260 | depends on PCI |
4c9d2800 BH |
261 | depends on PPC64 # not supported on 32 bits yet |
262 | default n | |
263 | ||
6a11f75b | 264 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 265 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
266 | def_bool y |
267 | ||
8b7b80b9 AM |
268 | config ARCH_SUPPORTS_UPROBES |
269 | def_bool y | |
270 | ||
172ae2e7 DK |
271 | config PPC_ADV_DEBUG_REGS |
272 | bool | |
273 | depends on 40x || BOOKE | |
274 | default y | |
275 | ||
276 | config PPC_ADV_DEBUG_IACS | |
277 | int | |
278 | depends on PPC_ADV_DEBUG_REGS | |
279 | default 4 if 44x | |
280 | default 2 | |
281 | ||
282 | config PPC_ADV_DEBUG_DACS | |
283 | int | |
284 | depends on PPC_ADV_DEBUG_REGS | |
285 | default 2 | |
286 | ||
287 | config PPC_ADV_DEBUG_DVCS | |
288 | int | |
289 | depends on PPC_ADV_DEBUG_REGS | |
290 | default 2 if 44x | |
291 | default 0 | |
292 | ||
293 | config PPC_ADV_DEBUG_DAC_RANGE | |
294 | bool | |
295 | depends on PPC_ADV_DEBUG_REGS && 44x | |
296 | default y | |
297 | ||
5e249d45 SP |
298 | config PPC_EMULATE_SSTEP |
299 | bool | |
300 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
301 | ||
1c98025c SW |
302 | config ZONE_DMA32 |
303 | bool | |
304 | default y if PPC64 | |
305 | ||
06ef42a1 KS |
306 | config PGTABLE_LEVELS |
307 | int | |
308 | default 2 if !PPC64 | |
309 | default 3 if PPC_64K_PAGES | |
310 | default 4 | |
311 | ||
14cf11af PM |
312 | source "init/Kconfig" |
313 | ||
dc52ddc0 MH |
314 | source "kernel/Kconfig.freezer" |
315 | ||
a2d2e1ec | 316 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 317 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 318 | |
14cf11af PM |
319 | menu "Kernel options" |
320 | ||
321 | config HIGHMEM | |
322 | bool "High memory support" | |
323 | depends on PPC32 | |
324 | ||
325 | source kernel/Kconfig.hz | |
326 | source kernel/Kconfig.preempt | |
327 | source "fs/Kconfig.binfmt" | |
328 | ||
ba72cb8c MG |
329 | config HUGETLB_PAGE_SIZE_VARIABLE |
330 | bool | |
331 | depends on HUGETLB_PAGE | |
332 | default y | |
333 | ||
14cf11af PM |
334 | config MATH_EMULATION |
335 | bool "Math emulation" | |
4e63f8ed | 336 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
337 | ---help--- |
338 | Some PowerPC chips designed for embedded applications do not have | |
339 | a floating-point unit and therefore do not implement the | |
340 | floating-point instructions in the PowerPC instruction set. If you | |
341 | say Y here, the kernel will include code to emulate a floating-point | |
342 | unit, which will allow programs that use floating-point | |
343 | instructions to run. | |
344 | ||
4e63f8ed BH |
345 | This is also useful to emulate missing (optional) instructions |
346 | such as fsqrt on cores that do have an FPU but do not implement | |
347 | them (such as Freescale BookE). | |
348 | ||
e05c0e81 KH |
349 | choice |
350 | prompt "Math emulation options" | |
351 | default MATH_EMULATION_FULL | |
352 | depends on MATH_EMULATION | |
353 | ||
354 | config MATH_EMULATION_FULL | |
355 | bool "Emulate all the floating point instructions" | |
356 | ---help--- | |
357 | Select this option will enable the kernel to support to emulate | |
358 | all the floating point instructions. If your SoC doesn't have | |
359 | a FPU, you should select this. | |
360 | ||
361 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
362 | bool "Just emulate the FPU unimplemented instructions" | |
363 | ---help--- | |
364 | Select this if you know there does have a hardware FPU on your | |
365 | SoC, but some floating point instructions are not implemented by that. | |
366 | ||
367 | endchoice | |
368 | ||
3d72bbc4 MN |
369 | config PPC_TRANSACTIONAL_MEM |
370 | bool "Transactional Memory support for POWERPC" | |
371 | depends on PPC_BOOK3S_64 | |
372 | depends on SMP | |
7b37a123 MN |
373 | select ALTIVEC |
374 | select VSX | |
3d72bbc4 MN |
375 | default n |
376 | ---help--- | |
377 | Support user-mode Transactional Memory on POWERPC. | |
378 | ||
fb3475e9 FT |
379 | config IOMMU_HELPER |
380 | def_bool PPC64 | |
381 | ||
ec3cf2ec BB |
382 | config SWIOTLB |
383 | bool "SWIOTLB support" | |
384 | default n | |
385 | select IOMMU_HELPER | |
386 | ---help--- | |
387 | Support for IO bounce buffering for systems without an IOMMU. | |
388 | This allows us to DMA to the full physical address space on | |
389 | platforms where the size of a physical address is larger | |
390 | than the bus address. Not all platforms support this. | |
391 | ||
14cf11af PM |
392 | config HOTPLUG_CPU |
393 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 394 | depends on SMP && (PPC_PSERIES || \ |
d0832a75 | 395 | PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) |
14cf11af PM |
396 | ---help--- |
397 | Say Y here to be able to disable and re-enable individual | |
398 | CPUs at runtime on SMP machines. | |
399 | ||
400 | Say N if you are unsure. | |
401 | ||
12633e80 NF |
402 | config ARCH_CPU_PROBE_RELEASE |
403 | def_bool y | |
404 | depends on HOTPLUG_CPU | |
405 | ||
cc57637b YG |
406 | config ARCH_ENABLE_MEMORY_HOTPLUG |
407 | def_bool y | |
408 | ||
a99824f3 BP |
409 | config ARCH_HAS_WALK_MEMORY |
410 | def_bool y | |
411 | ||
1482471d BP |
412 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
413 | def_bool y | |
414 | ||
f2296a3d MS |
415 | config PPC64_SUPPORTS_MEMORY_FAILURE |
416 | bool "Add support for memory hwpoison" | |
417 | depends on PPC_BOOK3S_64 | |
418 | default "y" if PPC_POWERNV | |
419 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
420 | ||
14cf11af | 421 | config KEXEC |
642e56ff | 422 | bool "kexec system call" |
96eea642 | 423 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 424 | select KEXEC_CORE |
14cf11af PM |
425 | help |
426 | kexec is a system call that implements the ability to shutdown your | |
427 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 428 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
429 | you can start any kernel with it, not just Linux. |
430 | ||
1f1332f7 | 431 | The name comes from the similarity to the exec system call. |
14cf11af PM |
432 | |
433 | It is an ongoing process to be certain the hardware in a machine | |
434 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
435 | initially work for you. As of this writing the exact hardware |
436 | interface is strongly in flux, so no good recommendation can be | |
437 | made. | |
14cf11af | 438 | |
e8625d46 | 439 | config CRASH_DUMP |
3420b5da | 440 | bool "Build a kdump crash kernel" |
47da4219 | 441 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 442 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
443 | help |
444 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
445 | The same kernel binary can be used as production kernel and dump |
446 | capture kernel. | |
e8625d46 | 447 | |
eb39c880 MS |
448 | config FA_DUMP |
449 | bool "Firmware-assisted dump" | |
90890b1e | 450 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
242f271c | 451 | help |
eb39c880 MS |
452 | A robust mechanism to get reliable kernel crash dump with |
453 | assistance from firmware. This approach does not use kexec, | |
454 | instead firmware assists in booting the kdump kernel | |
455 | while preserving memory contents. Firmware-assisted dump | |
456 | is meant to be a kdump replacement offering robustness and | |
457 | speed not possible without system firmware assistance. | |
242f271c MA |
458 | |
459 | If unsure, say "N" | |
460 | ||
14cf11af PM |
461 | config IRQ_ALL_CPUS |
462 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 463 | depends on SMP |
14cf11af PM |
464 | help |
465 | This option gives the kernel permission to distribute IRQs across | |
466 | multiple CPUs. Saying N here will route all IRQs to the first | |
467 | CPU. Generally saying Y is safe, although some problems have been | |
468 | reported with SMP Power Macintoshes with this option enabled. | |
469 | ||
ffa27b6b AW |
470 | config NUMA |
471 | bool "NUMA support" | |
472 | depends on PPC64 | |
473 | default y if SMP && PPC_PSERIES | |
474 | ||
c80d79d7 YG |
475 | config NODES_SHIFT |
476 | int | |
ea55bf29 | 477 | default "8" if PPC64 |
c80d79d7 YG |
478 | default "4" |
479 | depends on NEED_MULTIPLE_NODES | |
480 | ||
8c272261 NA |
481 | config USE_PERCPU_NUMA_NODE_ID |
482 | def_bool y | |
483 | depends on NUMA | |
484 | ||
64bb80d8 NA |
485 | config HAVE_MEMORYLESS_NODES |
486 | def_bool y | |
487 | depends on NUMA | |
488 | ||
14cf11af PM |
489 | config ARCH_SELECT_MEMORY_MODEL |
490 | def_bool y | |
491 | depends on PPC64 | |
492 | ||
493 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
494 | def_bool y |
495 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 496 | |
45fb6cea | 497 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 498 | def_bool y |
9100b205 | 499 | depends on PPC64 |
d29eff7b | 500 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 501 | |
45fb6cea | 502 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 503 | def_bool y |
78bde53e | 504 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 505 | |
5a1eb5c4 | 506 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 507 | bool |
5a1eb5c4 | 508 | |
c67c3cb4 | 509 | source "mm/Kconfig" |
14cf11af | 510 | |
7e9191da MK |
511 | config ARCH_MEMORY_PROBE |
512 | def_bool y | |
513 | depends on MEMORY_HOTPLUG | |
514 | ||
75167957 AW |
515 | # Some NUMA nodes have memory ranges that span |
516 | # other nodes. Even though a pfn is valid and | |
517 | # between a node's start and end pfns, it may not | |
518 | # reside on that node. See memmap_init_zone() | |
519 | # for details. | |
520 | config NODES_SPAN_OTHER_NODES | |
521 | def_bool y | |
522 | depends on NEED_MULTIPLE_NODES | |
523 | ||
e1240122 YT |
524 | config STDBINUTILS |
525 | bool "Using standard binutils settings" | |
526 | depends on 44x | |
527 | default y | |
528 | help | |
529 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
530 | Note, that kernel will be able to run only those applications, | |
531 | which had been compiled using binutils later than 2.17.50.0.3 with | |
532 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
533 | the older binutils, you can patch them with a trivial patch, which | |
534 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
535 | ||
ca9153a3 IY |
536 | choice |
537 | prompt "Page size" | |
538 | default PPC_4K_PAGES | |
3c726f8d | 539 | help |
ca9153a3 IY |
540 | Select the kernel logical page size. Increasing the page size |
541 | will reduce software overhead at each page boundary, allow | |
542 | hardware prefetch mechanisms to be more effective, and allow | |
543 | larger dma transfers increasing IO efficiency and reducing | |
544 | overhead. However the utilization of memory will increase. | |
545 | For example, each cached file will using a multiple of the | |
546 | page size to hold its contents and the difference between the | |
547 | end of file and the end of page is wasted. | |
548 | ||
549 | Some dedicated systems, such as software raid serving with | |
550 | accelerated calculations, have shown significant increases. | |
551 | ||
552 | If you configure a 64 bit kernel for 64k pages but the | |
553 | processor does not support them, then the kernel will simulate | |
554 | them with 4k pages, loading them on demand, but with the | |
555 | reduced software overhead and larger internal fragmentation. | |
556 | For the 32 bit kernel, a large page option will not be offered | |
557 | unless it is supported by the configured processor. | |
558 | ||
559 | If unsure, choose 4K_PAGES. | |
560 | ||
561 | config PPC_4K_PAGES | |
562 | bool "4k page size" | |
7207f436 | 563 | select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S |
ca9153a3 IY |
564 | |
565 | config PPC_16K_PAGES | |
55f8b5b8 ME |
566 | bool "16k page size" |
567 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
568 | |
569 | config PPC_64K_PAGES | |
55f8b5b8 ME |
570 | bool "64k page size" |
571 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
7207f436 | 572 | select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S |
ca9153a3 | 573 | |
e1240122 | 574 | config PPC_256K_PAGES |
55f8b5b8 ME |
575 | bool "256k page size" |
576 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
577 | help |
578 | Make the page size 256k. | |
579 | ||
580 | As the ELF standard only requires alignment to support page | |
581 | sizes up to 64k, you will need to compile all of your user | |
582 | space applications with a non-standard binutils settings | |
583 | (see the STDBINUTILS description for details). | |
584 | ||
585 | Say N unless you know what you are doing. | |
586 | ||
ca9153a3 | 587 | endchoice |
3c726f8d | 588 | |
53bcddb9 SR |
589 | config FORCE_MAX_ZONEORDER |
590 | int "Maximum zone order" | |
066c4b87 BH |
591 | range 9 64 if PPC64 && PPC_64K_PAGES |
592 | default "9" if PPC64 && PPC_64K_PAGES | |
593 | range 13 64 if PPC64 && !PPC_64K_PAGES | |
594 | default "13" if PPC64 && !PPC_64K_PAGES | |
595 | range 9 64 if PPC32 && PPC_16K_PAGES | |
596 | default "9" if PPC32 && PPC_16K_PAGES | |
597 | range 7 64 if PPC32 && PPC_64K_PAGES | |
598 | default "7" if PPC32 && PPC_64K_PAGES | |
599 | range 5 64 if PPC32 && PPC_256K_PAGES | |
600 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 601 | range 11 64 |
53bcddb9 SR |
602 | default "11" |
603 | help | |
604 | The kernel memory allocator divides physically contiguous memory | |
605 | blocks into "zones", where each zone is a power of two number of | |
606 | pages. This option selects the largest power of two that the kernel | |
607 | keeps in the memory allocator. If you need to allocate very large | |
608 | blocks of physically contiguous memory, then you may need to | |
609 | increase this value. | |
610 | ||
611 | This config option is actually maximum order plus one. For example, | |
612 | a value of 11 means that the largest free memory block is 2^10 pages. | |
613 | ||
614 | The page size is not necessarily 4KB. For example, on 64-bit | |
615 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
616 | this in mind when choosing a value for this option. | |
617 | ||
fa28237c PM |
618 | config PPC_SUBPAGE_PROT |
619 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 620 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
621 | help |
622 | This option adds support for a system call to allow user programs | |
623 | to set access permissions (read/write, readonly, or no access) | |
624 | on the 4k subpages of each 64k page. | |
625 | ||
e83d0169 IM |
626 | config PPC_COPRO_BASE |
627 | bool | |
628 | default n | |
629 | ||
14cf11af PM |
630 | config SCHED_SMT |
631 | bool "SMT (Hyperthreading) scheduler support" | |
632 | depends on PPC64 && SMP | |
14cf11af PM |
633 | help |
634 | SMT scheduler support improves the CPU scheduler's decision making | |
635 | when dealing with POWER5 cpus at a cost of slightly increased | |
636 | overhead in some places. If unsure say N here. | |
637 | ||
b92a66a6 MN |
638 | config PPC_DENORMALISATION |
639 | bool "PowerPC denormalisation exception handling" | |
640 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 641 | default "y" if PPC_POWERNV |
b92a66a6 MN |
642 | ---help--- |
643 | Add support for handling denormalisation of single precision | |
644 | values. Useful for bare metal only. If unsure say Y here. | |
645 | ||
14cf11af PM |
646 | config CMDLINE_BOOL |
647 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
648 | |
649 | config CMDLINE | |
650 | string "Initial kernel command string" | |
651 | depends on CMDLINE_BOOL | |
652 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
653 | help | |
654 | On some platforms, there is currently no way for the boot loader to | |
655 | pass arguments to the kernel. For these platforms, you can supply | |
656 | some command-line options at build time by entering them here. In | |
657 | most cases you will need to specify the root device here. | |
658 | ||
eb3b80f6 SS |
659 | config CMDLINE_FORCE |
660 | bool "Always use the default kernel command string" | |
661 | depends on CMDLINE_BOOL | |
662 | help | |
663 | Always use the default kernel command string, even if the boot | |
664 | loader passes other arguments to the kernel. | |
665 | This is useful if you cannot or don't want to change the | |
666 | command-line options your boot loader passes to the kernel. | |
667 | ||
c356aa45 GL |
668 | config EXTRA_TARGETS |
669 | string "Additional default image types" | |
670 | help | |
671 | List additional targets to be built by the bootwrapper here (separated | |
672 | by spaces). This is useful for targets that depend of device tree | |
673 | files in the .dts directory. | |
674 | ||
675 | Targets in this list will be build as part of the default build | |
676 | target, or when the user does a 'make zImage' or a | |
677 | 'make zImage.initrd'. | |
678 | ||
679 | If unsure, leave blank | |
680 | ||
b28f5081 JB |
681 | config ARCH_WANTS_FREEZER_CONTROL |
682 | def_bool y | |
683 | depends on ADB_PMU | |
684 | ||
14cf11af | 685 | source kernel/power/Kconfig |
14cf11af PM |
686 | |
687 | config SECCOMP | |
688 | bool "Enable seccomp to safely compute untrusted bytecode" | |
689 | depends on PROC_FS | |
690 | default y | |
691 | help | |
692 | This kernel feature is useful for number crunching applications | |
693 | that may need to compute untrusted bytecode during their | |
694 | execution. By using pipes or other transports made available to | |
695 | the process as file descriptors supporting the read/write | |
696 | syscalls, it's possible to isolate those applications in | |
697 | their own address space using seccomp. Once seccomp is | |
698 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
699 | and the task is only allowed to execute a few safe syscalls | |
700 | defined by each seccomp mode. | |
701 | ||
702 | If unsure, say Y. Only embedded should say N here. | |
703 | ||
704 | endmenu | |
705 | ||
706 | config ISA_DMA_API | |
707 | bool | |
3d066d77 | 708 | default PCI |
14cf11af PM |
709 | |
710 | menu "Bus options" | |
711 | ||
712 | config ISA | |
713 | bool "Support for ISA-bus hardware" | |
933ee711 | 714 | depends on PPC_CHRP |
f9bd170a | 715 | select PPC_I8259 |
14cf11af PM |
716 | help |
717 | Find out whether you have ISA slots on your motherboard. ISA is the | |
718 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
719 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
720 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
721 | embedded board, consult your board documentation. | |
14cf11af | 722 | |
5ac6da66 CL |
723 | config ZONE_DMA |
724 | bool | |
725 | default y | |
726 | ||
af407c6d FT |
727 | config NEED_DMA_MAP_STATE |
728 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
729 | ||
e32205eb FT |
730 | config NEED_SG_DMA_LENGTH |
731 | def_bool y | |
732 | ||
14cf11af PM |
733 | config GENERIC_ISA_DMA |
734 | bool | |
1927445a | 735 | depends on ISA_DMA_API |
14cf11af PM |
736 | default y |
737 | ||
25635c71 PM |
738 | config PPC_INDIRECT_PCI |
739 | bool | |
740 | depends on PCI | |
63dafe57 | 741 | default y if 40x || 44x |
25635c71 PM |
742 | default n |
743 | ||
14cf11af PM |
744 | config EISA |
745 | bool | |
746 | ||
747 | config SBUS | |
748 | bool | |
749 | ||
08264cbc KG |
750 | config FSL_SOC |
751 | bool | |
752 | ||
55c44991 RZ |
753 | config FSL_PCI |
754 | bool | |
755 | select PPC_INDIRECT_PCI | |
d0839118 | 756 | select PCI_QUIRKS |
55c44991 | 757 | |
4ffd6952 AV |
758 | config FSL_PMC |
759 | bool | |
760 | default y | |
761 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
762 | help | |
763 | Freescale MPC85xx/MPC86xx power management controller support | |
764 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
765 | ||
d164f6d4 VG |
766 | config PPC4xx_CPM |
767 | bool | |
768 | default y | |
769 | depends on SUSPEND && (44x || 40x) | |
770 | help | |
771 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
772 | It also enables support for two different idle states (idle-wait | |
773 | and idle-doze). | |
774 | ||
2a706919 SR |
775 | config 4xx_SOC |
776 | bool | |
777 | ||
acaa7aa3 | 778 | config FSL_LBC |
3ab8f2a2 RZ |
779 | bool "Freescale Local Bus support" |
780 | depends on FSL_SOC | |
acaa7aa3 | 781 | help |
3ab8f2a2 RZ |
782 | Enables reporting of errors from the Freescale local bus |
783 | controller. Also contains some common code used by | |
784 | drivers for specific local bus peripherals. | |
acaa7aa3 | 785 | |
83ff9dcf AV |
786 | config FSL_GTM |
787 | bool | |
788 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
789 | help | |
790 | Freescale General-purpose Timers support | |
791 | ||
14cf11af PM |
792 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
793 | config MCA | |
794 | bool | |
795 | ||
b500563b JR |
796 | # Platforms that what PCI turned unconditionally just do select PCI |
797 | # in their config node. Platforms that want to choose at config | |
798 | # time should select PPC_PCI_CHOICE | |
799 | config PPC_PCI_CHOICE | |
800 | bool | |
801 | ||
14cf11af | 802 | config PCI |
b500563b JR |
803 | bool "PCI support" if PPC_PCI_CHOICE |
804 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 805 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 806 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 807 | select GENERIC_PCI_IOMAP |
14cf11af PM |
808 | help |
809 | Find out whether your system includes a PCI bus. PCI is the name of | |
810 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
811 | your box. If you say Y here, the kernel will include drivers and | |
812 | infrastructure code to support PCI bus devices. | |
813 | ||
814 | config PCI_DOMAINS | |
36e23590 MW |
815 | def_bool PCI |
816 | ||
817 | config PCI_SYSCALL | |
818 | def_bool PCI | |
14cf11af | 819 | |
14cf11af PM |
820 | config PCI_QSPAN |
821 | bool "QSpan PCI" | |
822 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 823 | select PPC_I8259 |
14cf11af PM |
824 | help |
825 | Say Y here if you have a system based on a Motorola 8xx-series | |
826 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
827 | ||
828 | config PCI_8260 | |
829 | bool | |
830 | depends on PCI && 8260 | |
25635c71 | 831 | select PPC_INDIRECT_PCI |
14cf11af PM |
832 | default y |
833 | ||
bb53bb3d JM |
834 | source "drivers/pci/pcie/Kconfig" |
835 | ||
14cf11af PM |
836 | source "drivers/pci/Kconfig" |
837 | ||
838 | source "drivers/pcmcia/Kconfig" | |
839 | ||
840 | source "drivers/pci/hotplug/Kconfig" | |
841 | ||
f1f389d5 ZW |
842 | config HAS_RAPIDIO |
843 | bool | |
844 | default n | |
845 | ||
846 | config RAPIDIO | |
56abde72 | 847 | tristate "RapidIO support" |
388b78ad | 848 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
849 | help |
850 | If you say Y here, the kernel will include drivers and | |
851 | infrastructure code to support RapidIO interconnect devices. | |
852 | ||
388b78ad AB |
853 | config FSL_RIO |
854 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 855 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
856 | default "n" |
857 | ---help--- | |
858 | Include support for RapidIO controller on Freescale embedded | |
859 | processors (MPC8548, MPC8641, etc). | |
860 | ||
f1f389d5 ZW |
861 | source "drivers/rapidio/Kconfig" |
862 | ||
14cf11af PM |
863 | endmenu |
864 | ||
0f890c8d SP |
865 | config NONSTATIC_KERNEL |
866 | bool | |
867 | default n | |
868 | ||
14cf11af PM |
869 | menu "Advanced setup" |
870 | depends on PPC32 | |
871 | ||
872 | config ADVANCED_OPTIONS | |
873 | bool "Prompt for advanced kernel configuration options" | |
874 | help | |
875 | This option will enable prompting for a variety of advanced kernel | |
876 | configuration options. These options can cause the kernel to not | |
877 | work if they are set incorrectly, but can be used to optimize certain | |
878 | aspects of kernel memory management. | |
879 | ||
880 | Unless you know what you are doing, say N here. | |
881 | ||
882 | comment "Default settings for advanced configuration options are used" | |
883 | depends on !ADVANCED_OPTIONS | |
884 | ||
14cf11af PM |
885 | config LOWMEM_SIZE_BOOL |
886 | bool "Set maximum low memory" | |
887 | depends on ADVANCED_OPTIONS | |
888 | help | |
889 | This option allows you to set the maximum amount of memory which | |
890 | will be used as "low memory", that is, memory which the kernel can | |
891 | access directly, without having to set up a kernel virtual mapping. | |
892 | This can be useful in optimizing the layout of kernel virtual | |
893 | memory. | |
894 | ||
895 | Say N here unless you know what you are doing. | |
896 | ||
897 | config LOWMEM_SIZE | |
898 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
899 | default "0x30000000" | |
900 | ||
96051465 TP |
901 | config LOWMEM_CAM_NUM_BOOL |
902 | bool "Set number of CAMs to use to map low memory" | |
903 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
904 | help | |
905 | This option allows you to set the maximum number of CAM slots that | |
906 | will be used to map low memory. There are a limited number of slots | |
907 | available and even more limited number that will fit in the L1 MMU. | |
908 | However, using more entries will allow mapping more low memory. This | |
909 | can be useful in optimizing the layout of kernel virtual memory. | |
910 | ||
911 | Say N here unless you know what you are doing. | |
912 | ||
913 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 914 | depends on FSL_BOOKE |
96051465 TP |
915 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
916 | default 3 | |
917 | ||
0f890c8d | 918 | config DYNAMIC_MEMSTART |
642e56ff KC |
919 | bool "Enable page aligned dynamic load address for kernel" |
920 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
921 | select NONSTATIC_KERNEL |
922 | help | |
923 | This option enables the kernel to be loaded at any page aligned | |
924 | physical address. The kernel creates a mapping from KERNELBASE to | |
925 | the address where the kernel is loaded. The page size here implies | |
926 | the TLB page size of the mapping for kernel on the particular platform. | |
927 | Please refer to the init code for finding the TLB page size. | |
928 | ||
929 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
930 | kernel image, where the only restriction is the page aligned kernel | |
931 | load address. When this option is enabled, the compile time physical | |
932 | address CONFIG_PHYSICAL_START is ignored. | |
933 | ||
9c5f7d39 SP |
934 | This option is overridden by CONFIG_RELOCATABLE |
935 | ||
37dd2bad | 936 | config RELOCATABLE |
642e56ff | 937 | bool "Build a relocatable kernel" |
dd189692 | 938 | depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) |
9c5f7d39 | 939 | select NONSTATIC_KERNEL |
37dd2bad KG |
940 | help |
941 | This builds a kernel image that is capable of running at the | |
9c5f7d39 SP |
942 | location the kernel is loaded at, without any alignment restrictions. |
943 | This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. | |
37dd2bad KG |
944 | |
945 | One use is for the kexec on panic case where the recovery kernel | |
946 | must live at a different physical address than the primary | |
947 | kernel. | |
948 | ||
949 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
950 | it has been loaded at and the compile time physical addresses | |
951 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
952 | setting can still be useful to bootwrappers that need to know the | |
9c5f7d39 SP |
953 | load address of the kernel (eg. u-boot/mkimage). |
954 | ||
955 | config RELOCATABLE_PPC32 | |
956 | def_bool y | |
957 | depends on PPC32 && RELOCATABLE | |
37dd2bad KG |
958 | |
959 | config PAGE_OFFSET_BOOL | |
960 | bool "Set custom page offset address" | |
961 | depends on ADVANCED_OPTIONS | |
962 | help | |
963 | This option allows you to set the kernel virtual address at which | |
964 | the kernel will map low memory. This can be useful in optimizing | |
965 | the virtual memory layout of the system. | |
966 | ||
967 | Say N here unless you know what you are doing. | |
968 | ||
969 | config PAGE_OFFSET | |
970 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
971 | default "0xc0000000" | |
972 | ||
14cf11af PM |
973 | config KERNEL_START_BOOL |
974 | bool "Set custom kernel base address" | |
975 | depends on ADVANCED_OPTIONS | |
976 | help | |
977 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
978 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
979 | however there are times (like kdump) that one might not want them | |
980 | to be the same. | |
14cf11af PM |
981 | |
982 | Say N here unless you know what you are doing. | |
983 | ||
984 | config KERNEL_START | |
985 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 986 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 987 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
988 | default "0xc0000000" |
989 | ||
37dd2bad KG |
990 | config PHYSICAL_START_BOOL |
991 | bool "Set physical address where the kernel is loaded" | |
992 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
993 | help | |
994 | This gives the physical address where the kernel is loaded. | |
995 | ||
996 | Say N here unless you know what you are doing. | |
997 | ||
998 | config PHYSICAL_START | |
999 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1000 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1001 | default "0x00000000" |
1002 | ||
1003 | config PHYSICAL_ALIGN | |
1004 | hex | |
c8f3570b | 1005 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1006 | help |
1007 | This value puts the alignment restrictions on physical address | |
1008 | where kernel is loaded and run from. Kernel is compiled for an | |
1009 | address which meets above alignment restriction. | |
1010 | ||
14cf11af PM |
1011 | config TASK_SIZE_BOOL |
1012 | bool "Set custom user task size" | |
1013 | depends on ADVANCED_OPTIONS | |
1014 | help | |
1015 | This option allows you to set the amount of virtual address space | |
1016 | allocated to user tasks. This can be useful in optimizing the | |
1017 | virtual memory layout of the system. | |
1018 | ||
1019 | Say N here unless you know what you are doing. | |
1020 | ||
1021 | config TASK_SIZE | |
1022 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1023 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1024 | default "0xc0000000" |
14cf11af | 1025 | |
84532a0f BH |
1026 | config CONSISTENT_SIZE_BOOL |
1027 | bool "Set custom consistent memory pool size" | |
1028 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1029 | help | |
1030 | This option allows you to set the size of the | |
1031 | consistent memory pool. This pool of virtual memory | |
1032 | is used to make consistent memory allocations. | |
1033 | ||
1034 | config CONSISTENT_SIZE | |
1035 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1036 | default "0x00200000" if NOT_COHERENT_CACHE | |
1037 | ||
14cf11af PM |
1038 | config PIN_TLB |
1039 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1040 | depends on ADVANCED_OPTIONS && 8xx | |
1041 | endmenu | |
1042 | ||
cabb5587 | 1043 | if PPC64 |
549e8152 PM |
1044 | config RELOCATABLE |
1045 | bool "Build a relocatable kernel" | |
fb43e847 | 1046 | depends on !COMPILE_TEST |
0f890c8d | 1047 | select NONSTATIC_KERNEL |
549e8152 PM |
1048 | help |
1049 | This builds a kernel image that is capable of running anywhere | |
1050 | in the RMA (real memory area) at any 16k-aligned base address. | |
1051 | The kernel is linked as a position-independent executable (PIE) | |
1052 | and contains dynamic relocations which are processed early | |
1053 | in the bootup process. | |
1054 | ||
1055 | One use is for the kexec on panic case where the recovery kernel | |
1056 | must live at a different physical address than the primary | |
1057 | kernel. | |
1058 | ||
bdbc29c1 | 1059 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1060 | config PAGE_OFFSET |
1061 | hex | |
1062 | default "0xc000000000000000" | |
cabb5587 SR |
1063 | config KERNEL_START |
1064 | hex | |
eeb2d218 | 1065 | default "0xc000000000000000" |
37dd2bad KG |
1066 | config PHYSICAL_START |
1067 | hex | |
37dd2bad | 1068 | default "0x00000000" |
cabb5587 SR |
1069 | endif |
1070 | ||
a4da0d50 ME |
1071 | config ARCH_RANDOM |
1072 | def_bool n | |
1073 | ||
14cf11af PM |
1074 | source "net/Kconfig" |
1075 | ||
1076 | source "drivers/Kconfig" | |
1077 | ||
1078 | source "fs/Kconfig" | |
1079 | ||
14cf11af PM |
1080 | source "lib/Kconfig" |
1081 | ||
14cf11af PM |
1082 | source "arch/powerpc/Kconfig.debug" |
1083 | ||
1084 | source "security/Kconfig" | |
1085 | ||
1086 | config KEYS_COMPAT | |
1087 | bool | |
1088 | depends on COMPAT && KEYS | |
1089 | default y | |
1090 | ||
1091 | source "crypto/Kconfig" | |
6f668280 | 1092 | |
1088a209 SM |
1093 | config PPC_LIB_RHEAP |
1094 | bool | |
1095 | ||
bbf45ba5 | 1096 | source "arch/powerpc/kvm/Kconfig" |