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 | ||
945feb17 BH |
50 | config TRACE_IRQFLAGS_SUPPORT |
51 | bool | |
945feb17 BH |
52 | default y |
53 | ||
54 | config LOCKDEP_SUPPORT | |
55 | bool | |
56 | default y | |
57 | ||
14cf11af PM |
58 | config RWSEM_GENERIC_SPINLOCK |
59 | bool | |
60 | ||
61 | config RWSEM_XCHGADD_ALGORITHM | |
62 | bool | |
63 | default y | |
64 | ||
95c354fe NP |
65 | config GENERIC_LOCKBREAK |
66 | bool | |
67 | default y | |
68 | depends on SMP && PREEMPT | |
69 | ||
f0d1b0b3 DH |
70 | config ARCH_HAS_ILOG2_U32 |
71 | bool | |
ef55d53c | 72 | default y |
f0d1b0b3 DH |
73 | |
74 | config ARCH_HAS_ILOG2_U64 | |
75 | bool | |
ef55d53c | 76 | default y if 64BIT |
f0d1b0b3 | 77 | |
e779b2f9 AM |
78 | config GENERIC_HWEIGHT |
79 | bool | |
80 | default y | |
81 | ||
817820b0 BH |
82 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
83 | bool | |
84 | ||
14cf11af PM |
85 | config PPC |
86 | bool | |
87 | default y | |
b7e7c37b | 88 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 89 | select ARCH_MIGHT_HAVE_PC_SERIO |
d812c0e1 | 90 | select BINFMT_ELF |
2b68f6ca | 91 | select ARCH_HAS_ELF_RANDOMIZE |
10f85f43 | 92 | select OF |
e6ce1324 | 93 | select OF_EARLY_FLATTREE |
708b7eef | 94 | select OF_RESERVED_MEM |
2b79d696 SR |
95 | select HAVE_FTRACE_MCOUNT_RECORD |
96 | select HAVE_DYNAMIC_FTRACE | |
8c50b72a | 97 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
606576ce | 98 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 99 | select HAVE_FUNCTION_GRAPH_TRACER |
7ac57a89 | 100 | select SYSCTL_EXCEPTION_TRACE |
7444a72e | 101 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4febd95a | 102 | select VIRT_TO_BUS if !PPC64 |
ec7748b5 | 103 | select HAVE_IDE |
a1f242ff | 104 | select HAVE_IOREMAP_PROT |
0b5e6661 | 105 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN |
3f550096 | 106 | select HAVE_KPROBES |
17ce452f | 107 | select HAVE_ARCH_KGDB |
9edddaa2 | 108 | select HAVE_KRETPROBES |
dec2b0d0 | 109 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 110 | select HAVE_MEMBLOCK |
1d7cfe18 | 111 | select HAVE_MEMBLOCK_NODE_MAP |
80d3e8ab | 112 | select HAVE_DMA_API_DEBUG |
4e491d14 | 113 | select HAVE_OPROFILE |
b69ec42b | 114 | select HAVE_DEBUG_KMEMLEAK |
308c09f1 | 115 | select ARCH_HAS_SG_CHAIN |
c2e95c6d | 116 | select GENERIC_ATOMIC64 if PPC32 |
7463449b | 117 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
cdd6c482 | 118 | select HAVE_PERF_EVENTS |
359e4284 | 119 | select HAVE_REGS_AND_STACK_ACCESS_API |
5aae8a53 | 120 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
c1d7e01d | 121 | select ARCH_WANT_IPC_PARSE_VERSION |
ad5b7f13 | 122 | select SPARSE_IRQ |
cc79ca69 | 123 | select IRQ_DOMAIN |
433c9c67 TG |
124 | select GENERIC_IRQ_SHOW |
125 | select GENERIC_IRQ_SHOW_LEVEL | |
e8d2c473 | 126 | select IRQ_FORCED_THREADING |
26723911 | 127 | select HAVE_RCU_TABLE_FREE if SMP |
02424d89 | 128 | select HAVE_SYSCALL_TRACEPOINTS |
eb84bab0 | 129 | select HAVE_BPF_JIT |
ac5f89c7 | 130 | select HAVE_ARCH_JUMP_LABEL |
df013ffb | 131 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
957e3fac | 132 | select ARCH_HAS_GCOV_PROFILE_ALL |
17e32eac | 133 | select GENERIC_SMP_IDLE_THREAD |
b9ed27df | 134 | select GENERIC_CMOS_UPDATE |
70639421 | 135 | select GENERIC_TIME_VSYSCALL_OLD |
b9ed27df | 136 | select GENERIC_CLOCKEVENTS |
0d948730 PM |
137 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
138 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
1629372c PM |
139 | select GENERIC_STRNCPY_FROM_USER |
140 | select GENERIC_STRNLEN_USER | |
786d35d4 DH |
141 | select HAVE_MOD_ARCH_SPECIFIC |
142 | select MODULES_USE_ELF_RELA | |
0bcfe540 | 143 | select CLONE_BACKWARDS |
fe3955cb | 144 | select ARCH_USE_BUILTIN_BSWAP |
0980caea | 145 | select OLD_SIGSUSPEND |
09a4d5d0 | 146 | select OLD_SIGACTION if PPC32 |
d1a1dc0b | 147 | select HAVE_DEBUG_STACKOVERFLOW |
62d26c82 | 148 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
3405d230 | 149 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 |
7a017721 | 150 | select HAVE_ARCH_AUDITSYSCALL |
4badad35 | 151 | select ARCH_SUPPORTS_ATOMIC_RMW |
a75c380c | 152 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
10239733 | 153 | select NO_BOOTMEM |
b30e7590 | 154 | select HAVE_GENERIC_RCU_GUP |
c54b2bf1 | 155 | select HAVE_PERF_EVENTS_NMI if PPC64 |
b01aec9b BP |
156 | select EDAC_SUPPORT |
157 | select EDAC_ATOMIC_SCRUB | |
817820b0 | 158 | select ARCH_HAS_DMA_SET_COHERENT_MASK |
21266be9 | 159 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
2449acc5 | 160 | select HAVE_ARCH_SECCOMP_FILTER |
bf76f73c | 161 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
14cf11af | 162 | |
7a332b0c AB |
163 | config GENERIC_CSUM |
164 | def_bool CPU_LITTLE_ENDIAN | |
165 | ||
14cf11af PM |
166 | config EARLY_PRINTK |
167 | bool | |
51d3082f | 168 | default y |
14cf11af | 169 | |
b71d47c1 JB |
170 | config PANIC_TIMEOUT |
171 | int | |
172 | default 180 | |
173 | ||
14cf11af PM |
174 | config COMPAT |
175 | bool | |
176 | default y if PPC64 | |
01e31dba | 177 | select COMPAT_BINFMT_ELF |
48b25c43 | 178 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 179 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
180 | |
181 | config SYSVIPC_COMPAT | |
182 | bool | |
183 | depends on COMPAT && SYSVIPC | |
184 | default y | |
185 | ||
186 | # All PPC32s use generic nvram driver through ppc_md | |
187 | config GENERIC_NVRAM | |
188 | bool | |
189 | default y if PPC32 | |
190 | ||
ae1e9130 | 191 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
192 | bool |
193 | default y | |
194 | ||
195 | config ARCH_MAY_HAVE_PC_FDC | |
196 | bool | |
3484a31f | 197 | default PCI |
14cf11af | 198 | |
08264cbc KG |
199 | config PPC_UDBG_16550 |
200 | bool | |
201 | default n | |
202 | ||
08264cbc KG |
203 | config GENERIC_TBSYNC |
204 | bool | |
205 | default y if PPC32 && SMP | |
206 | default n | |
207 | ||
e65e1fc2 AV |
208 | config AUDIT_ARCH |
209 | bool | |
210 | default y | |
211 | ||
73c9ceab JF |
212 | config GENERIC_BUG |
213 | bool | |
214 | default y | |
215 | depends on BUG | |
216 | ||
b3028878 | 217 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 218 | default y if PMAC_APM_EMU |
b3028878 JB |
219 | bool |
220 | ||
6c5b59b9 DG |
221 | config EPAPR_BOOT |
222 | bool | |
223 | help | |
224 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
225 | default n | |
226 | ||
f4fc4a5b KG |
227 | config DEFAULT_UIMAGE |
228 | bool | |
229 | help | |
230 | Used to allow a board to specify it wants a uImage built by default | |
231 | default n | |
232 | ||
801e4062 JB |
233 | config ARCH_HIBERNATION_POSSIBLE |
234 | bool | |
543b9fd3 JB |
235 | default y |
236 | ||
f4cb5700 JB |
237 | config ARCH_SUSPEND_POSSIBLE |
238 | def_bool y | |
4ffd6952 | 239 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
240 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
241 | || 44x || 40x | |
f4cb5700 | 242 | |
4c75a6f4 BH |
243 | config PPC_DCR_NATIVE |
244 | bool | |
245 | default n | |
246 | ||
247 | config PPC_DCR_MMIO | |
248 | bool | |
249 | default n | |
250 | ||
251 | config PPC_DCR | |
252 | bool | |
253 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
254 | default y | |
255 | ||
4c9d2800 BH |
256 | config PPC_OF_PLATFORM_PCI |
257 | bool | |
373a6da1 | 258 | depends on PCI |
4c9d2800 BH |
259 | depends on PPC64 # not supported on 32 bits yet |
260 | default n | |
261 | ||
6a11f75b | 262 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 263 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
264 | def_bool y |
265 | ||
8b7b80b9 AM |
266 | config ARCH_SUPPORTS_UPROBES |
267 | def_bool y | |
268 | ||
172ae2e7 DK |
269 | config PPC_ADV_DEBUG_REGS |
270 | bool | |
271 | depends on 40x || BOOKE | |
272 | default y | |
273 | ||
274 | config PPC_ADV_DEBUG_IACS | |
275 | int | |
276 | depends on PPC_ADV_DEBUG_REGS | |
277 | default 4 if 44x | |
278 | default 2 | |
279 | ||
280 | config PPC_ADV_DEBUG_DACS | |
281 | int | |
282 | depends on PPC_ADV_DEBUG_REGS | |
283 | default 2 | |
284 | ||
285 | config PPC_ADV_DEBUG_DVCS | |
286 | int | |
287 | depends on PPC_ADV_DEBUG_REGS | |
288 | default 2 if 44x | |
289 | default 0 | |
290 | ||
291 | config PPC_ADV_DEBUG_DAC_RANGE | |
292 | bool | |
293 | depends on PPC_ADV_DEBUG_REGS && 44x | |
294 | default y | |
295 | ||
5e249d45 SP |
296 | config PPC_EMULATE_SSTEP |
297 | bool | |
298 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
299 | ||
1c98025c SW |
300 | config ZONE_DMA32 |
301 | bool | |
302 | default y if PPC64 | |
303 | ||
06ef42a1 KS |
304 | config PGTABLE_LEVELS |
305 | int | |
306 | default 2 if !PPC64 | |
307 | default 3 if PPC_64K_PAGES | |
308 | default 4 | |
309 | ||
14cf11af PM |
310 | source "init/Kconfig" |
311 | ||
dc52ddc0 MH |
312 | source "kernel/Kconfig.freezer" |
313 | ||
a2d2e1ec | 314 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 315 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 316 | |
14cf11af PM |
317 | menu "Kernel options" |
318 | ||
319 | config HIGHMEM | |
320 | bool "High memory support" | |
321 | depends on PPC32 | |
322 | ||
323 | source kernel/Kconfig.hz | |
324 | source kernel/Kconfig.preempt | |
325 | source "fs/Kconfig.binfmt" | |
326 | ||
ba72cb8c MG |
327 | config HUGETLB_PAGE_SIZE_VARIABLE |
328 | bool | |
329 | depends on HUGETLB_PAGE | |
330 | default y | |
331 | ||
14cf11af PM |
332 | config MATH_EMULATION |
333 | bool "Math emulation" | |
4e63f8ed | 334 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
335 | ---help--- |
336 | Some PowerPC chips designed for embedded applications do not have | |
337 | a floating-point unit and therefore do not implement the | |
338 | floating-point instructions in the PowerPC instruction set. If you | |
339 | say Y here, the kernel will include code to emulate a floating-point | |
340 | unit, which will allow programs that use floating-point | |
341 | instructions to run. | |
342 | ||
4e63f8ed BH |
343 | This is also useful to emulate missing (optional) instructions |
344 | such as fsqrt on cores that do have an FPU but do not implement | |
345 | them (such as Freescale BookE). | |
346 | ||
e05c0e81 KH |
347 | choice |
348 | prompt "Math emulation options" | |
349 | default MATH_EMULATION_FULL | |
350 | depends on MATH_EMULATION | |
351 | ||
352 | config MATH_EMULATION_FULL | |
353 | bool "Emulate all the floating point instructions" | |
354 | ---help--- | |
355 | Select this option will enable the kernel to support to emulate | |
356 | all the floating point instructions. If your SoC doesn't have | |
357 | a FPU, you should select this. | |
358 | ||
359 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
360 | bool "Just emulate the FPU unimplemented instructions" | |
361 | ---help--- | |
362 | Select this if you know there does have a hardware FPU on your | |
363 | SoC, but some floating point instructions are not implemented by that. | |
364 | ||
365 | endchoice | |
366 | ||
3d72bbc4 MN |
367 | config PPC_TRANSACTIONAL_MEM |
368 | bool "Transactional Memory support for POWERPC" | |
369 | depends on PPC_BOOK3S_64 | |
370 | depends on SMP | |
7b37a123 MN |
371 | select ALTIVEC |
372 | select VSX | |
3d72bbc4 MN |
373 | default n |
374 | ---help--- | |
375 | Support user-mode Transactional Memory on POWERPC. | |
376 | ||
8c50b72a TD |
377 | config DISABLE_MPROFILE_KERNEL |
378 | bool "Disable use of mprofile-kernel for kernel tracing" | |
379 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
380 | default y | |
381 | help | |
382 | Selecting this options disables use of the mprofile-kernel ABI for | |
383 | kernel tracing. That will cause options such as live patching | |
384 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
385 | be disabled also. | |
386 | ||
387 | If you have a toolchain which supports mprofile-kernel, then you can | |
388 | enable this. Otherwise leave it disabled. If you're not sure, say | |
389 | "N". | |
390 | ||
391 | config MPROFILE_KERNEL | |
392 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
393 | def_bool !DISABLE_MPROFILE_KERNEL | |
394 | ||
fb3475e9 FT |
395 | config IOMMU_HELPER |
396 | def_bool PPC64 | |
397 | ||
ec3cf2ec BB |
398 | config SWIOTLB |
399 | bool "SWIOTLB support" | |
400 | default n | |
401 | select IOMMU_HELPER | |
402 | ---help--- | |
403 | Support for IO bounce buffering for systems without an IOMMU. | |
404 | This allows us to DMA to the full physical address space on | |
405 | platforms where the size of a physical address is larger | |
406 | than the bus address. Not all platforms support this. | |
407 | ||
14cf11af PM |
408 | config HOTPLUG_CPU |
409 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 410 | depends on SMP && (PPC_PSERIES || \ |
d0832a75 | 411 | PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) |
14cf11af PM |
412 | ---help--- |
413 | Say Y here to be able to disable and re-enable individual | |
414 | CPUs at runtime on SMP machines. | |
415 | ||
416 | Say N if you are unsure. | |
417 | ||
12633e80 NF |
418 | config ARCH_CPU_PROBE_RELEASE |
419 | def_bool y | |
420 | depends on HOTPLUG_CPU | |
421 | ||
cc57637b YG |
422 | config ARCH_ENABLE_MEMORY_HOTPLUG |
423 | def_bool y | |
424 | ||
a99824f3 BP |
425 | config ARCH_HAS_WALK_MEMORY |
426 | def_bool y | |
427 | ||
1482471d BP |
428 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
429 | def_bool y | |
430 | ||
f2296a3d MS |
431 | config PPC64_SUPPORTS_MEMORY_FAILURE |
432 | bool "Add support for memory hwpoison" | |
433 | depends on PPC_BOOK3S_64 | |
434 | default "y" if PPC_POWERNV | |
435 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
436 | ||
14cf11af | 437 | config KEXEC |
642e56ff | 438 | bool "kexec system call" |
96eea642 | 439 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 440 | select KEXEC_CORE |
14cf11af PM |
441 | help |
442 | kexec is a system call that implements the ability to shutdown your | |
443 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 444 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
445 | you can start any kernel with it, not just Linux. |
446 | ||
1f1332f7 | 447 | The name comes from the similarity to the exec system call. |
14cf11af PM |
448 | |
449 | It is an ongoing process to be certain the hardware in a machine | |
450 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
451 | initially work for you. As of this writing the exact hardware |
452 | interface is strongly in flux, so no good recommendation can be | |
453 | made. | |
14cf11af | 454 | |
e8625d46 | 455 | config CRASH_DUMP |
3420b5da | 456 | bool "Build a kdump crash kernel" |
47da4219 | 457 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 458 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
459 | help |
460 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
461 | The same kernel binary can be used as production kernel and dump |
462 | capture kernel. | |
e8625d46 | 463 | |
eb39c880 MS |
464 | config FA_DUMP |
465 | bool "Firmware-assisted dump" | |
90890b1e | 466 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
242f271c | 467 | help |
eb39c880 MS |
468 | A robust mechanism to get reliable kernel crash dump with |
469 | assistance from firmware. This approach does not use kexec, | |
470 | instead firmware assists in booting the kdump kernel | |
471 | while preserving memory contents. Firmware-assisted dump | |
472 | is meant to be a kdump replacement offering robustness and | |
473 | speed not possible without system firmware assistance. | |
242f271c MA |
474 | |
475 | If unsure, say "N" | |
476 | ||
14cf11af PM |
477 | config IRQ_ALL_CPUS |
478 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 479 | depends on SMP |
14cf11af PM |
480 | help |
481 | This option gives the kernel permission to distribute IRQs across | |
482 | multiple CPUs. Saying N here will route all IRQs to the first | |
483 | CPU. Generally saying Y is safe, although some problems have been | |
484 | reported with SMP Power Macintoshes with this option enabled. | |
485 | ||
ffa27b6b AW |
486 | config NUMA |
487 | bool "NUMA support" | |
488 | depends on PPC64 | |
489 | default y if SMP && PPC_PSERIES | |
490 | ||
c80d79d7 YG |
491 | config NODES_SHIFT |
492 | int | |
ea55bf29 | 493 | default "8" if PPC64 |
c80d79d7 YG |
494 | default "4" |
495 | depends on NEED_MULTIPLE_NODES | |
496 | ||
8c272261 NA |
497 | config USE_PERCPU_NUMA_NODE_ID |
498 | def_bool y | |
499 | depends on NUMA | |
500 | ||
64bb80d8 NA |
501 | config HAVE_MEMORYLESS_NODES |
502 | def_bool y | |
503 | depends on NUMA | |
504 | ||
14cf11af PM |
505 | config ARCH_SELECT_MEMORY_MODEL |
506 | def_bool y | |
507 | depends on PPC64 | |
508 | ||
509 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
510 | def_bool y |
511 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 512 | |
45fb6cea | 513 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 514 | def_bool y |
9100b205 | 515 | depends on PPC64 |
d29eff7b | 516 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 517 | |
45fb6cea | 518 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 519 | def_bool y |
78bde53e | 520 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 521 | |
5a1eb5c4 | 522 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 523 | bool |
5a1eb5c4 | 524 | |
c67c3cb4 | 525 | source "mm/Kconfig" |
14cf11af | 526 | |
7e9191da MK |
527 | config ARCH_MEMORY_PROBE |
528 | def_bool y | |
529 | depends on MEMORY_HOTPLUG | |
530 | ||
75167957 AW |
531 | # Some NUMA nodes have memory ranges that span |
532 | # other nodes. Even though a pfn is valid and | |
533 | # between a node's start and end pfns, it may not | |
534 | # reside on that node. See memmap_init_zone() | |
535 | # for details. | |
536 | config NODES_SPAN_OTHER_NODES | |
537 | def_bool y | |
538 | depends on NEED_MULTIPLE_NODES | |
539 | ||
e1240122 YT |
540 | config STDBINUTILS |
541 | bool "Using standard binutils settings" | |
542 | depends on 44x | |
543 | default y | |
544 | help | |
545 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
546 | Note, that kernel will be able to run only those applications, | |
547 | which had been compiled using binutils later than 2.17.50.0.3 with | |
548 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
549 | the older binutils, you can patch them with a trivial patch, which | |
550 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
551 | ||
ca9153a3 IY |
552 | choice |
553 | prompt "Page size" | |
554 | default PPC_4K_PAGES | |
3c726f8d | 555 | help |
ca9153a3 IY |
556 | Select the kernel logical page size. Increasing the page size |
557 | will reduce software overhead at each page boundary, allow | |
558 | hardware prefetch mechanisms to be more effective, and allow | |
559 | larger dma transfers increasing IO efficiency and reducing | |
560 | overhead. However the utilization of memory will increase. | |
561 | For example, each cached file will using a multiple of the | |
562 | page size to hold its contents and the difference between the | |
563 | end of file and the end of page is wasted. | |
564 | ||
565 | Some dedicated systems, such as software raid serving with | |
566 | accelerated calculations, have shown significant increases. | |
567 | ||
568 | If you configure a 64 bit kernel for 64k pages but the | |
569 | processor does not support them, then the kernel will simulate | |
570 | them with 4k pages, loading them on demand, but with the | |
571 | reduced software overhead and larger internal fragmentation. | |
572 | For the 32 bit kernel, a large page option will not be offered | |
573 | unless it is supported by the configured processor. | |
574 | ||
575 | If unsure, choose 4K_PAGES. | |
576 | ||
577 | config PPC_4K_PAGES | |
578 | bool "4k page size" | |
7207f436 | 579 | select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S |
ca9153a3 IY |
580 | |
581 | config PPC_16K_PAGES | |
55f8b5b8 ME |
582 | bool "16k page size" |
583 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
584 | |
585 | config PPC_64K_PAGES | |
55f8b5b8 ME |
586 | bool "64k page size" |
587 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
7207f436 | 588 | select HAVE_ARCH_SOFT_DIRTY if CHECKPOINT_RESTORE && PPC_BOOK3S |
ca9153a3 | 589 | |
e1240122 | 590 | config PPC_256K_PAGES |
55f8b5b8 ME |
591 | bool "256k page size" |
592 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
593 | help |
594 | Make the page size 256k. | |
595 | ||
596 | As the ELF standard only requires alignment to support page | |
597 | sizes up to 64k, you will need to compile all of your user | |
598 | space applications with a non-standard binutils settings | |
599 | (see the STDBINUTILS description for details). | |
600 | ||
601 | Say N unless you know what you are doing. | |
602 | ||
ca9153a3 | 603 | endchoice |
3c726f8d | 604 | |
53bcddb9 SR |
605 | config FORCE_MAX_ZONEORDER |
606 | int "Maximum zone order" | |
066c4b87 BH |
607 | range 9 64 if PPC64 && PPC_64K_PAGES |
608 | default "9" if PPC64 && PPC_64K_PAGES | |
609 | range 13 64 if PPC64 && !PPC_64K_PAGES | |
610 | default "13" if PPC64 && !PPC_64K_PAGES | |
611 | range 9 64 if PPC32 && PPC_16K_PAGES | |
612 | default "9" if PPC32 && PPC_16K_PAGES | |
613 | range 7 64 if PPC32 && PPC_64K_PAGES | |
614 | default "7" if PPC32 && PPC_64K_PAGES | |
615 | range 5 64 if PPC32 && PPC_256K_PAGES | |
616 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 617 | range 11 64 |
53bcddb9 SR |
618 | default "11" |
619 | help | |
620 | The kernel memory allocator divides physically contiguous memory | |
621 | blocks into "zones", where each zone is a power of two number of | |
622 | pages. This option selects the largest power of two that the kernel | |
623 | keeps in the memory allocator. If you need to allocate very large | |
624 | blocks of physically contiguous memory, then you may need to | |
625 | increase this value. | |
626 | ||
627 | This config option is actually maximum order plus one. For example, | |
628 | a value of 11 means that the largest free memory block is 2^10 pages. | |
629 | ||
630 | The page size is not necessarily 4KB. For example, on 64-bit | |
631 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
632 | this in mind when choosing a value for this option. | |
633 | ||
fa28237c PM |
634 | config PPC_SUBPAGE_PROT |
635 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 636 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
637 | help |
638 | This option adds support for a system call to allow user programs | |
639 | to set access permissions (read/write, readonly, or no access) | |
640 | on the 4k subpages of each 64k page. | |
641 | ||
e83d0169 IM |
642 | config PPC_COPRO_BASE |
643 | bool | |
644 | default n | |
645 | ||
14cf11af PM |
646 | config SCHED_SMT |
647 | bool "SMT (Hyperthreading) scheduler support" | |
648 | depends on PPC64 && SMP | |
14cf11af PM |
649 | help |
650 | SMT scheduler support improves the CPU scheduler's decision making | |
651 | when dealing with POWER5 cpus at a cost of slightly increased | |
652 | overhead in some places. If unsure say N here. | |
653 | ||
b92a66a6 MN |
654 | config PPC_DENORMALISATION |
655 | bool "PowerPC denormalisation exception handling" | |
656 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 657 | default "y" if PPC_POWERNV |
b92a66a6 MN |
658 | ---help--- |
659 | Add support for handling denormalisation of single precision | |
660 | values. Useful for bare metal only. If unsure say Y here. | |
661 | ||
14cf11af PM |
662 | config CMDLINE_BOOL |
663 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
664 | |
665 | config CMDLINE | |
666 | string "Initial kernel command string" | |
667 | depends on CMDLINE_BOOL | |
668 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
669 | help | |
670 | On some platforms, there is currently no way for the boot loader to | |
671 | pass arguments to the kernel. For these platforms, you can supply | |
672 | some command-line options at build time by entering them here. In | |
673 | most cases you will need to specify the root device here. | |
674 | ||
eb3b80f6 SS |
675 | config CMDLINE_FORCE |
676 | bool "Always use the default kernel command string" | |
677 | depends on CMDLINE_BOOL | |
678 | help | |
679 | Always use the default kernel command string, even if the boot | |
680 | loader passes other arguments to the kernel. | |
681 | This is useful if you cannot or don't want to change the | |
682 | command-line options your boot loader passes to the kernel. | |
683 | ||
c356aa45 GL |
684 | config EXTRA_TARGETS |
685 | string "Additional default image types" | |
686 | help | |
687 | List additional targets to be built by the bootwrapper here (separated | |
688 | by spaces). This is useful for targets that depend of device tree | |
689 | files in the .dts directory. | |
690 | ||
691 | Targets in this list will be build as part of the default build | |
692 | target, or when the user does a 'make zImage' or a | |
693 | 'make zImage.initrd'. | |
694 | ||
695 | If unsure, leave blank | |
696 | ||
b28f5081 JB |
697 | config ARCH_WANTS_FREEZER_CONTROL |
698 | def_bool y | |
699 | depends on ADB_PMU | |
700 | ||
14cf11af | 701 | source kernel/power/Kconfig |
14cf11af PM |
702 | |
703 | config SECCOMP | |
704 | bool "Enable seccomp to safely compute untrusted bytecode" | |
705 | depends on PROC_FS | |
706 | default y | |
707 | help | |
708 | This kernel feature is useful for number crunching applications | |
709 | that may need to compute untrusted bytecode during their | |
710 | execution. By using pipes or other transports made available to | |
711 | the process as file descriptors supporting the read/write | |
712 | syscalls, it's possible to isolate those applications in | |
713 | their own address space using seccomp. Once seccomp is | |
714 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
715 | and the task is only allowed to execute a few safe syscalls | |
716 | defined by each seccomp mode. | |
717 | ||
718 | If unsure, say Y. Only embedded should say N here. | |
719 | ||
720 | endmenu | |
721 | ||
722 | config ISA_DMA_API | |
723 | bool | |
3d066d77 | 724 | default PCI |
14cf11af PM |
725 | |
726 | menu "Bus options" | |
727 | ||
728 | config ISA | |
729 | bool "Support for ISA-bus hardware" | |
933ee711 | 730 | depends on PPC_CHRP |
f9bd170a | 731 | select PPC_I8259 |
14cf11af PM |
732 | help |
733 | Find out whether you have ISA slots on your motherboard. ISA is the | |
734 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
735 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
736 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
737 | embedded board, consult your board documentation. | |
14cf11af | 738 | |
5ac6da66 CL |
739 | config ZONE_DMA |
740 | bool | |
741 | default y | |
742 | ||
af407c6d FT |
743 | config NEED_DMA_MAP_STATE |
744 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
745 | ||
e32205eb FT |
746 | config NEED_SG_DMA_LENGTH |
747 | def_bool y | |
748 | ||
14cf11af PM |
749 | config GENERIC_ISA_DMA |
750 | bool | |
1927445a | 751 | depends on ISA_DMA_API |
14cf11af PM |
752 | default y |
753 | ||
25635c71 PM |
754 | config PPC_INDIRECT_PCI |
755 | bool | |
756 | depends on PCI | |
63dafe57 | 757 | default y if 40x || 44x |
25635c71 PM |
758 | default n |
759 | ||
14cf11af PM |
760 | config EISA |
761 | bool | |
762 | ||
763 | config SBUS | |
764 | bool | |
765 | ||
08264cbc KG |
766 | config FSL_SOC |
767 | bool | |
768 | ||
55c44991 RZ |
769 | config FSL_PCI |
770 | bool | |
771 | select PPC_INDIRECT_PCI | |
d0839118 | 772 | select PCI_QUIRKS |
55c44991 | 773 | |
4ffd6952 AV |
774 | config FSL_PMC |
775 | bool | |
776 | default y | |
777 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
778 | help | |
779 | Freescale MPC85xx/MPC86xx power management controller support | |
780 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
781 | ||
d164f6d4 VG |
782 | config PPC4xx_CPM |
783 | bool | |
784 | default y | |
785 | depends on SUSPEND && (44x || 40x) | |
786 | help | |
787 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
788 | It also enables support for two different idle states (idle-wait | |
789 | and idle-doze). | |
790 | ||
2a706919 SR |
791 | config 4xx_SOC |
792 | bool | |
793 | ||
acaa7aa3 | 794 | config FSL_LBC |
3ab8f2a2 RZ |
795 | bool "Freescale Local Bus support" |
796 | depends on FSL_SOC | |
acaa7aa3 | 797 | help |
3ab8f2a2 RZ |
798 | Enables reporting of errors from the Freescale local bus |
799 | controller. Also contains some common code used by | |
800 | drivers for specific local bus peripherals. | |
acaa7aa3 | 801 | |
83ff9dcf AV |
802 | config FSL_GTM |
803 | bool | |
804 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
805 | help | |
806 | Freescale General-purpose Timers support | |
807 | ||
14cf11af PM |
808 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
809 | config MCA | |
810 | bool | |
811 | ||
b500563b JR |
812 | # Platforms that what PCI turned unconditionally just do select PCI |
813 | # in their config node. Platforms that want to choose at config | |
814 | # time should select PPC_PCI_CHOICE | |
815 | config PPC_PCI_CHOICE | |
816 | bool | |
817 | ||
14cf11af | 818 | config PCI |
b500563b JR |
819 | bool "PCI support" if PPC_PCI_CHOICE |
820 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 821 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 822 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 823 | select GENERIC_PCI_IOMAP |
14cf11af PM |
824 | help |
825 | Find out whether your system includes a PCI bus. PCI is the name of | |
826 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
827 | your box. If you say Y here, the kernel will include drivers and | |
828 | infrastructure code to support PCI bus devices. | |
829 | ||
830 | config PCI_DOMAINS | |
36e23590 MW |
831 | def_bool PCI |
832 | ||
833 | config PCI_SYSCALL | |
834 | def_bool PCI | |
14cf11af | 835 | |
14cf11af PM |
836 | config PCI_QSPAN |
837 | bool "QSpan PCI" | |
838 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 839 | select PPC_I8259 |
14cf11af PM |
840 | help |
841 | Say Y here if you have a system based on a Motorola 8xx-series | |
842 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
843 | ||
844 | config PCI_8260 | |
845 | bool | |
846 | depends on PCI && 8260 | |
25635c71 | 847 | select PPC_INDIRECT_PCI |
14cf11af PM |
848 | default y |
849 | ||
bb53bb3d JM |
850 | source "drivers/pci/pcie/Kconfig" |
851 | ||
14cf11af PM |
852 | source "drivers/pci/Kconfig" |
853 | ||
854 | source "drivers/pcmcia/Kconfig" | |
855 | ||
856 | source "drivers/pci/hotplug/Kconfig" | |
857 | ||
f1f389d5 ZW |
858 | config HAS_RAPIDIO |
859 | bool | |
860 | default n | |
861 | ||
862 | config RAPIDIO | |
56abde72 | 863 | tristate "RapidIO support" |
388b78ad | 864 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
865 | help |
866 | If you say Y here, the kernel will include drivers and | |
867 | infrastructure code to support RapidIO interconnect devices. | |
868 | ||
388b78ad AB |
869 | config FSL_RIO |
870 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 871 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
872 | default "n" |
873 | ---help--- | |
874 | Include support for RapidIO controller on Freescale embedded | |
875 | processors (MPC8548, MPC8641, etc). | |
876 | ||
f1f389d5 ZW |
877 | source "drivers/rapidio/Kconfig" |
878 | ||
14cf11af PM |
879 | endmenu |
880 | ||
0f890c8d SP |
881 | config NONSTATIC_KERNEL |
882 | bool | |
883 | default n | |
884 | ||
14cf11af PM |
885 | menu "Advanced setup" |
886 | depends on PPC32 | |
887 | ||
888 | config ADVANCED_OPTIONS | |
889 | bool "Prompt for advanced kernel configuration options" | |
890 | help | |
891 | This option will enable prompting for a variety of advanced kernel | |
892 | configuration options. These options can cause the kernel to not | |
893 | work if they are set incorrectly, but can be used to optimize certain | |
894 | aspects of kernel memory management. | |
895 | ||
896 | Unless you know what you are doing, say N here. | |
897 | ||
898 | comment "Default settings for advanced configuration options are used" | |
899 | depends on !ADVANCED_OPTIONS | |
900 | ||
14cf11af PM |
901 | config LOWMEM_SIZE_BOOL |
902 | bool "Set maximum low memory" | |
903 | depends on ADVANCED_OPTIONS | |
904 | help | |
905 | This option allows you to set the maximum amount of memory which | |
906 | will be used as "low memory", that is, memory which the kernel can | |
907 | access directly, without having to set up a kernel virtual mapping. | |
908 | This can be useful in optimizing the layout of kernel virtual | |
909 | memory. | |
910 | ||
911 | Say N here unless you know what you are doing. | |
912 | ||
913 | config LOWMEM_SIZE | |
914 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
915 | default "0x30000000" | |
916 | ||
96051465 TP |
917 | config LOWMEM_CAM_NUM_BOOL |
918 | bool "Set number of CAMs to use to map low memory" | |
919 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
920 | help | |
921 | This option allows you to set the maximum number of CAM slots that | |
922 | will be used to map low memory. There are a limited number of slots | |
923 | available and even more limited number that will fit in the L1 MMU. | |
924 | However, using more entries will allow mapping more low memory. This | |
925 | can be useful in optimizing the layout of kernel virtual memory. | |
926 | ||
927 | Say N here unless you know what you are doing. | |
928 | ||
929 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 930 | depends on FSL_BOOKE |
96051465 TP |
931 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
932 | default 3 | |
933 | ||
0f890c8d | 934 | config DYNAMIC_MEMSTART |
642e56ff KC |
935 | bool "Enable page aligned dynamic load address for kernel" |
936 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
937 | select NONSTATIC_KERNEL |
938 | help | |
939 | This option enables the kernel to be loaded at any page aligned | |
940 | physical address. The kernel creates a mapping from KERNELBASE to | |
941 | the address where the kernel is loaded. The page size here implies | |
942 | the TLB page size of the mapping for kernel on the particular platform. | |
943 | Please refer to the init code for finding the TLB page size. | |
944 | ||
945 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
946 | kernel image, where the only restriction is the page aligned kernel | |
947 | load address. When this option is enabled, the compile time physical | |
948 | address CONFIG_PHYSICAL_START is ignored. | |
949 | ||
9c5f7d39 SP |
950 | This option is overridden by CONFIG_RELOCATABLE |
951 | ||
37dd2bad | 952 | config RELOCATABLE |
642e56ff | 953 | bool "Build a relocatable kernel" |
dd189692 | 954 | depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) |
9c5f7d39 | 955 | select NONSTATIC_KERNEL |
37dd2bad KG |
956 | help |
957 | This builds a kernel image that is capable of running at the | |
9c5f7d39 SP |
958 | location the kernel is loaded at, without any alignment restrictions. |
959 | This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. | |
37dd2bad KG |
960 | |
961 | One use is for the kexec on panic case where the recovery kernel | |
962 | must live at a different physical address than the primary | |
963 | kernel. | |
964 | ||
965 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
966 | it has been loaded at and the compile time physical addresses | |
967 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
968 | setting can still be useful to bootwrappers that need to know the | |
9c5f7d39 SP |
969 | load address of the kernel (eg. u-boot/mkimage). |
970 | ||
971 | config RELOCATABLE_PPC32 | |
972 | def_bool y | |
973 | depends on PPC32 && RELOCATABLE | |
37dd2bad KG |
974 | |
975 | config PAGE_OFFSET_BOOL | |
976 | bool "Set custom page offset address" | |
977 | depends on ADVANCED_OPTIONS | |
978 | help | |
979 | This option allows you to set the kernel virtual address at which | |
980 | the kernel will map low memory. This can be useful in optimizing | |
981 | the virtual memory layout of the system. | |
982 | ||
983 | Say N here unless you know what you are doing. | |
984 | ||
985 | config PAGE_OFFSET | |
986 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
987 | default "0xc0000000" | |
988 | ||
14cf11af PM |
989 | config KERNEL_START_BOOL |
990 | bool "Set custom kernel base address" | |
991 | depends on ADVANCED_OPTIONS | |
992 | help | |
993 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
994 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
995 | however there are times (like kdump) that one might not want them | |
996 | to be the same. | |
14cf11af PM |
997 | |
998 | Say N here unless you know what you are doing. | |
999 | ||
1000 | config KERNEL_START | |
1001 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1002 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1003 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1004 | default "0xc0000000" |
1005 | ||
37dd2bad KG |
1006 | config PHYSICAL_START_BOOL |
1007 | bool "Set physical address where the kernel is loaded" | |
1008 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1009 | help | |
1010 | This gives the physical address where the kernel is loaded. | |
1011 | ||
1012 | Say N here unless you know what you are doing. | |
1013 | ||
1014 | config PHYSICAL_START | |
1015 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1016 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1017 | default "0x00000000" |
1018 | ||
1019 | config PHYSICAL_ALIGN | |
1020 | hex | |
c8f3570b | 1021 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1022 | help |
1023 | This value puts the alignment restrictions on physical address | |
1024 | where kernel is loaded and run from. Kernel is compiled for an | |
1025 | address which meets above alignment restriction. | |
1026 | ||
14cf11af PM |
1027 | config TASK_SIZE_BOOL |
1028 | bool "Set custom user task size" | |
1029 | depends on ADVANCED_OPTIONS | |
1030 | help | |
1031 | This option allows you to set the amount of virtual address space | |
1032 | allocated to user tasks. This can be useful in optimizing the | |
1033 | virtual memory layout of the system. | |
1034 | ||
1035 | Say N here unless you know what you are doing. | |
1036 | ||
1037 | config TASK_SIZE | |
1038 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1039 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1040 | default "0xc0000000" |
14cf11af | 1041 | |
84532a0f BH |
1042 | config CONSISTENT_SIZE_BOOL |
1043 | bool "Set custom consistent memory pool size" | |
1044 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1045 | help | |
1046 | This option allows you to set the size of the | |
1047 | consistent memory pool. This pool of virtual memory | |
1048 | is used to make consistent memory allocations. | |
1049 | ||
1050 | config CONSISTENT_SIZE | |
1051 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1052 | default "0x00200000" if NOT_COHERENT_CACHE | |
1053 | ||
14cf11af PM |
1054 | config PIN_TLB |
1055 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1056 | depends on ADVANCED_OPTIONS && 8xx | |
1057 | endmenu | |
1058 | ||
cabb5587 | 1059 | if PPC64 |
549e8152 PM |
1060 | config RELOCATABLE |
1061 | bool "Build a relocatable kernel" | |
fb43e847 | 1062 | depends on !COMPILE_TEST |
0f890c8d | 1063 | select NONSTATIC_KERNEL |
549e8152 PM |
1064 | help |
1065 | This builds a kernel image that is capable of running anywhere | |
1066 | in the RMA (real memory area) at any 16k-aligned base address. | |
1067 | The kernel is linked as a position-independent executable (PIE) | |
1068 | and contains dynamic relocations which are processed early | |
1069 | in the bootup process. | |
1070 | ||
1071 | One use is for the kexec on panic case where the recovery kernel | |
1072 | must live at a different physical address than the primary | |
1073 | kernel. | |
1074 | ||
bdbc29c1 | 1075 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1076 | config PAGE_OFFSET |
1077 | hex | |
1078 | default "0xc000000000000000" | |
cabb5587 SR |
1079 | config KERNEL_START |
1080 | hex | |
eeb2d218 | 1081 | default "0xc000000000000000" |
37dd2bad KG |
1082 | config PHYSICAL_START |
1083 | hex | |
37dd2bad | 1084 | default "0x00000000" |
cabb5587 SR |
1085 | endif |
1086 | ||
a4da0d50 ME |
1087 | config ARCH_RANDOM |
1088 | def_bool n | |
1089 | ||
14cf11af PM |
1090 | source "net/Kconfig" |
1091 | ||
1092 | source "drivers/Kconfig" | |
1093 | ||
1094 | source "fs/Kconfig" | |
1095 | ||
14cf11af PM |
1096 | source "lib/Kconfig" |
1097 | ||
14cf11af PM |
1098 | source "arch/powerpc/Kconfig.debug" |
1099 | ||
1100 | source "security/Kconfig" | |
1101 | ||
1102 | config KEYS_COMPAT | |
1103 | bool | |
1104 | depends on COMPAT && KEYS | |
1105 | default y | |
1106 | ||
1107 | source "crypto/Kconfig" | |
6f668280 | 1108 | |
1088a209 SM |
1109 | config PPC_LIB_RHEAP |
1110 | bool | |
1111 | ||
bbf45ba5 | 1112 | source "arch/powerpc/kvm/Kconfig" |