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 |
7f2bd006 | 162 | select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT |
14cf11af | 163 | |
7a332b0c AB |
164 | config GENERIC_CSUM |
165 | def_bool CPU_LITTLE_ENDIAN | |
166 | ||
14cf11af PM |
167 | config EARLY_PRINTK |
168 | bool | |
51d3082f | 169 | default y |
14cf11af | 170 | |
b71d47c1 JB |
171 | config PANIC_TIMEOUT |
172 | int | |
173 | default 180 | |
174 | ||
14cf11af PM |
175 | config COMPAT |
176 | bool | |
177 | default y if PPC64 | |
01e31dba | 178 | select COMPAT_BINFMT_ELF |
48b25c43 | 179 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 180 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
181 | |
182 | config SYSVIPC_COMPAT | |
183 | bool | |
184 | depends on COMPAT && SYSVIPC | |
185 | default y | |
186 | ||
187 | # All PPC32s use generic nvram driver through ppc_md | |
188 | config GENERIC_NVRAM | |
189 | bool | |
190 | default y if PPC32 | |
191 | ||
ae1e9130 | 192 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
193 | bool |
194 | default y | |
195 | ||
196 | config ARCH_MAY_HAVE_PC_FDC | |
197 | bool | |
3484a31f | 198 | default PCI |
14cf11af | 199 | |
08264cbc KG |
200 | config PPC_UDBG_16550 |
201 | bool | |
202 | default n | |
203 | ||
08264cbc KG |
204 | config GENERIC_TBSYNC |
205 | bool | |
206 | default y if PPC32 && SMP | |
207 | default n | |
208 | ||
e65e1fc2 AV |
209 | config AUDIT_ARCH |
210 | bool | |
211 | default y | |
212 | ||
73c9ceab JF |
213 | config GENERIC_BUG |
214 | bool | |
215 | default y | |
216 | depends on BUG | |
217 | ||
b3028878 | 218 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 219 | default y if PMAC_APM_EMU |
b3028878 JB |
220 | bool |
221 | ||
6c5b59b9 DG |
222 | config EPAPR_BOOT |
223 | bool | |
224 | help | |
225 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
226 | default n | |
227 | ||
f4fc4a5b KG |
228 | config DEFAULT_UIMAGE |
229 | bool | |
230 | help | |
231 | Used to allow a board to specify it wants a uImage built by default | |
232 | default n | |
233 | ||
801e4062 JB |
234 | config ARCH_HIBERNATION_POSSIBLE |
235 | bool | |
543b9fd3 JB |
236 | default y |
237 | ||
f4cb5700 JB |
238 | config ARCH_SUSPEND_POSSIBLE |
239 | def_bool y | |
4ffd6952 | 240 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
241 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
242 | || 44x || 40x | |
f4cb5700 | 243 | |
4c75a6f4 BH |
244 | config PPC_DCR_NATIVE |
245 | bool | |
246 | default n | |
247 | ||
248 | config PPC_DCR_MMIO | |
249 | bool | |
250 | default n | |
251 | ||
252 | config PPC_DCR | |
253 | bool | |
254 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
255 | default y | |
256 | ||
4c9d2800 BH |
257 | config PPC_OF_PLATFORM_PCI |
258 | bool | |
373a6da1 | 259 | depends on PCI |
4c9d2800 BH |
260 | depends on PPC64 # not supported on 32 bits yet |
261 | default n | |
262 | ||
6a11f75b | 263 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 264 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
265 | def_bool y |
266 | ||
8b7b80b9 AM |
267 | config ARCH_SUPPORTS_UPROBES |
268 | def_bool y | |
269 | ||
172ae2e7 DK |
270 | config PPC_ADV_DEBUG_REGS |
271 | bool | |
272 | depends on 40x || BOOKE | |
273 | default y | |
274 | ||
275 | config PPC_ADV_DEBUG_IACS | |
276 | int | |
277 | depends on PPC_ADV_DEBUG_REGS | |
278 | default 4 if 44x | |
279 | default 2 | |
280 | ||
281 | config PPC_ADV_DEBUG_DACS | |
282 | int | |
283 | depends on PPC_ADV_DEBUG_REGS | |
284 | default 2 | |
285 | ||
286 | config PPC_ADV_DEBUG_DVCS | |
287 | int | |
288 | depends on PPC_ADV_DEBUG_REGS | |
289 | default 2 if 44x | |
290 | default 0 | |
291 | ||
292 | config PPC_ADV_DEBUG_DAC_RANGE | |
293 | bool | |
294 | depends on PPC_ADV_DEBUG_REGS && 44x | |
295 | default y | |
296 | ||
5e249d45 SP |
297 | config PPC_EMULATE_SSTEP |
298 | bool | |
299 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
300 | ||
1c98025c SW |
301 | config ZONE_DMA32 |
302 | bool | |
303 | default y if PPC64 | |
304 | ||
06ef42a1 KS |
305 | config PGTABLE_LEVELS |
306 | int | |
307 | default 2 if !PPC64 | |
368ced78 | 308 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
309 | default 4 |
310 | ||
14cf11af PM |
311 | source "init/Kconfig" |
312 | ||
dc52ddc0 MH |
313 | source "kernel/Kconfig.freezer" |
314 | ||
a2d2e1ec | 315 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 316 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 317 | |
14cf11af PM |
318 | menu "Kernel options" |
319 | ||
320 | config HIGHMEM | |
321 | bool "High memory support" | |
322 | depends on PPC32 | |
323 | ||
324 | source kernel/Kconfig.hz | |
325 | source kernel/Kconfig.preempt | |
326 | source "fs/Kconfig.binfmt" | |
327 | ||
ba72cb8c MG |
328 | config HUGETLB_PAGE_SIZE_VARIABLE |
329 | bool | |
330 | depends on HUGETLB_PAGE | |
331 | default y | |
332 | ||
14cf11af PM |
333 | config MATH_EMULATION |
334 | bool "Math emulation" | |
4e63f8ed | 335 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
336 | ---help--- |
337 | Some PowerPC chips designed for embedded applications do not have | |
338 | a floating-point unit and therefore do not implement the | |
339 | floating-point instructions in the PowerPC instruction set. If you | |
340 | say Y here, the kernel will include code to emulate a floating-point | |
341 | unit, which will allow programs that use floating-point | |
342 | instructions to run. | |
343 | ||
4e63f8ed BH |
344 | This is also useful to emulate missing (optional) instructions |
345 | such as fsqrt on cores that do have an FPU but do not implement | |
346 | them (such as Freescale BookE). | |
347 | ||
e05c0e81 KH |
348 | choice |
349 | prompt "Math emulation options" | |
350 | default MATH_EMULATION_FULL | |
351 | depends on MATH_EMULATION | |
352 | ||
353 | config MATH_EMULATION_FULL | |
354 | bool "Emulate all the floating point instructions" | |
355 | ---help--- | |
356 | Select this option will enable the kernel to support to emulate | |
357 | all the floating point instructions. If your SoC doesn't have | |
358 | a FPU, you should select this. | |
359 | ||
360 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
361 | bool "Just emulate the FPU unimplemented instructions" | |
362 | ---help--- | |
363 | Select this if you know there does have a hardware FPU on your | |
364 | SoC, but some floating point instructions are not implemented by that. | |
365 | ||
366 | endchoice | |
367 | ||
3d72bbc4 MN |
368 | config PPC_TRANSACTIONAL_MEM |
369 | bool "Transactional Memory support for POWERPC" | |
370 | depends on PPC_BOOK3S_64 | |
371 | depends on SMP | |
7b37a123 MN |
372 | select ALTIVEC |
373 | select VSX | |
3d72bbc4 MN |
374 | default n |
375 | ---help--- | |
376 | Support user-mode Transactional Memory on POWERPC. | |
377 | ||
8c50b72a TD |
378 | config DISABLE_MPROFILE_KERNEL |
379 | bool "Disable use of mprofile-kernel for kernel tracing" | |
380 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
381 | default y | |
382 | help | |
383 | Selecting this options disables use of the mprofile-kernel ABI for | |
384 | kernel tracing. That will cause options such as live patching | |
385 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
386 | be disabled also. | |
387 | ||
388 | If you have a toolchain which supports mprofile-kernel, then you can | |
389 | enable this. Otherwise leave it disabled. If you're not sure, say | |
390 | "N". | |
391 | ||
392 | config MPROFILE_KERNEL | |
393 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
394 | def_bool !DISABLE_MPROFILE_KERNEL | |
395 | ||
fb3475e9 FT |
396 | config IOMMU_HELPER |
397 | def_bool PPC64 | |
398 | ||
ec3cf2ec BB |
399 | config SWIOTLB |
400 | bool "SWIOTLB support" | |
401 | default n | |
402 | select IOMMU_HELPER | |
403 | ---help--- | |
404 | Support for IO bounce buffering for systems without an IOMMU. | |
405 | This allows us to DMA to the full physical address space on | |
406 | platforms where the size of a physical address is larger | |
407 | than the bus address. Not all platforms support this. | |
408 | ||
14cf11af PM |
409 | config HOTPLUG_CPU |
410 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 411 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 412 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
413 | ---help--- |
414 | Say Y here to be able to disable and re-enable individual | |
415 | CPUs at runtime on SMP machines. | |
416 | ||
417 | Say N if you are unsure. | |
418 | ||
12633e80 NF |
419 | config ARCH_CPU_PROBE_RELEASE |
420 | def_bool y | |
421 | depends on HOTPLUG_CPU | |
422 | ||
cc57637b YG |
423 | config ARCH_ENABLE_MEMORY_HOTPLUG |
424 | def_bool y | |
425 | ||
a99824f3 BP |
426 | config ARCH_HAS_WALK_MEMORY |
427 | def_bool y | |
428 | ||
1482471d BP |
429 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
430 | def_bool y | |
431 | ||
f2296a3d MS |
432 | config PPC64_SUPPORTS_MEMORY_FAILURE |
433 | bool "Add support for memory hwpoison" | |
434 | depends on PPC_BOOK3S_64 | |
435 | default "y" if PPC_POWERNV | |
436 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
437 | ||
14cf11af | 438 | config KEXEC |
642e56ff | 439 | bool "kexec system call" |
96eea642 | 440 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 441 | select KEXEC_CORE |
14cf11af PM |
442 | help |
443 | kexec is a system call that implements the ability to shutdown your | |
444 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 445 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
446 | you can start any kernel with it, not just Linux. |
447 | ||
1f1332f7 | 448 | The name comes from the similarity to the exec system call. |
14cf11af PM |
449 | |
450 | It is an ongoing process to be certain the hardware in a machine | |
451 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
452 | initially work for you. As of this writing the exact hardware |
453 | interface is strongly in flux, so no good recommendation can be | |
454 | made. | |
14cf11af | 455 | |
e8625d46 | 456 | config CRASH_DUMP |
3420b5da | 457 | bool "Build a kdump crash kernel" |
47da4219 | 458 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 459 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
460 | help |
461 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
462 | The same kernel binary can be used as production kernel and dump |
463 | capture kernel. | |
e8625d46 | 464 | |
eb39c880 MS |
465 | config FA_DUMP |
466 | bool "Firmware-assisted dump" | |
90890b1e | 467 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
242f271c | 468 | help |
eb39c880 MS |
469 | A robust mechanism to get reliable kernel crash dump with |
470 | assistance from firmware. This approach does not use kexec, | |
471 | instead firmware assists in booting the kdump kernel | |
472 | while preserving memory contents. Firmware-assisted dump | |
473 | is meant to be a kdump replacement offering robustness and | |
474 | speed not possible without system firmware assistance. | |
242f271c MA |
475 | |
476 | If unsure, say "N" | |
477 | ||
14cf11af PM |
478 | config IRQ_ALL_CPUS |
479 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 480 | depends on SMP |
14cf11af PM |
481 | help |
482 | This option gives the kernel permission to distribute IRQs across | |
483 | multiple CPUs. Saying N here will route all IRQs to the first | |
484 | CPU. Generally saying Y is safe, although some problems have been | |
485 | reported with SMP Power Macintoshes with this option enabled. | |
486 | ||
ffa27b6b AW |
487 | config NUMA |
488 | bool "NUMA support" | |
489 | depends on PPC64 | |
490 | default y if SMP && PPC_PSERIES | |
491 | ||
c80d79d7 YG |
492 | config NODES_SHIFT |
493 | int | |
ea55bf29 | 494 | default "8" if PPC64 |
c80d79d7 YG |
495 | default "4" |
496 | depends on NEED_MULTIPLE_NODES | |
497 | ||
8c272261 NA |
498 | config USE_PERCPU_NUMA_NODE_ID |
499 | def_bool y | |
500 | depends on NUMA | |
501 | ||
64bb80d8 NA |
502 | config HAVE_MEMORYLESS_NODES |
503 | def_bool y | |
504 | depends on NUMA | |
505 | ||
14cf11af PM |
506 | config ARCH_SELECT_MEMORY_MODEL |
507 | def_bool y | |
508 | depends on PPC64 | |
509 | ||
510 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
511 | def_bool y |
512 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 513 | |
45fb6cea | 514 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 515 | def_bool y |
9100b205 | 516 | depends on PPC64 |
d29eff7b | 517 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 518 | |
45fb6cea | 519 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 520 | def_bool y |
78bde53e | 521 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 522 | |
5a1eb5c4 | 523 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 524 | bool |
5a1eb5c4 | 525 | |
c67c3cb4 | 526 | source "mm/Kconfig" |
14cf11af | 527 | |
7e9191da MK |
528 | config ARCH_MEMORY_PROBE |
529 | def_bool y | |
530 | depends on MEMORY_HOTPLUG | |
531 | ||
75167957 AW |
532 | # Some NUMA nodes have memory ranges that span |
533 | # other nodes. Even though a pfn is valid and | |
534 | # between a node's start and end pfns, it may not | |
535 | # reside on that node. See memmap_init_zone() | |
536 | # for details. | |
537 | config NODES_SPAN_OTHER_NODES | |
538 | def_bool y | |
539 | depends on NEED_MULTIPLE_NODES | |
540 | ||
e1240122 YT |
541 | config STDBINUTILS |
542 | bool "Using standard binutils settings" | |
543 | depends on 44x | |
544 | default y | |
545 | help | |
546 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
547 | Note, that kernel will be able to run only those applications, | |
548 | which had been compiled using binutils later than 2.17.50.0.3 with | |
549 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
550 | the older binutils, you can patch them with a trivial patch, which | |
551 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
552 | ||
ca9153a3 IY |
553 | choice |
554 | prompt "Page size" | |
555 | default PPC_4K_PAGES | |
3c726f8d | 556 | help |
ca9153a3 IY |
557 | Select the kernel logical page size. Increasing the page size |
558 | will reduce software overhead at each page boundary, allow | |
559 | hardware prefetch mechanisms to be more effective, and allow | |
560 | larger dma transfers increasing IO efficiency and reducing | |
561 | overhead. However the utilization of memory will increase. | |
562 | For example, each cached file will using a multiple of the | |
563 | page size to hold its contents and the difference between the | |
564 | end of file and the end of page is wasted. | |
565 | ||
566 | Some dedicated systems, such as software raid serving with | |
567 | accelerated calculations, have shown significant increases. | |
568 | ||
569 | If you configure a 64 bit kernel for 64k pages but the | |
570 | processor does not support them, then the kernel will simulate | |
571 | them with 4k pages, loading them on demand, but with the | |
572 | reduced software overhead and larger internal fragmentation. | |
573 | For the 32 bit kernel, a large page option will not be offered | |
574 | unless it is supported by the configured processor. | |
575 | ||
576 | If unsure, choose 4K_PAGES. | |
577 | ||
578 | config PPC_4K_PAGES | |
579 | bool "4k page size" | |
19f97c98 | 580 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
581 | |
582 | config PPC_16K_PAGES | |
55f8b5b8 ME |
583 | bool "16k page size" |
584 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
585 | |
586 | config PPC_64K_PAGES | |
55f8b5b8 ME |
587 | bool "64k page size" |
588 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
19f97c98 | 589 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 590 | |
e1240122 | 591 | config PPC_256K_PAGES |
55f8b5b8 ME |
592 | bool "256k page size" |
593 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
594 | help |
595 | Make the page size 256k. | |
596 | ||
597 | As the ELF standard only requires alignment to support page | |
598 | sizes up to 64k, you will need to compile all of your user | |
599 | space applications with a non-standard binutils settings | |
600 | (see the STDBINUTILS description for details). | |
601 | ||
602 | Say N unless you know what you are doing. | |
603 | ||
ca9153a3 | 604 | endchoice |
3c726f8d | 605 | |
53bcddb9 SR |
606 | config FORCE_MAX_ZONEORDER |
607 | int "Maximum zone order" | |
066c4b87 BH |
608 | range 9 64 if PPC64 && PPC_64K_PAGES |
609 | default "9" if PPC64 && PPC_64K_PAGES | |
610 | range 13 64 if PPC64 && !PPC_64K_PAGES | |
611 | default "13" if PPC64 && !PPC_64K_PAGES | |
612 | range 9 64 if PPC32 && PPC_16K_PAGES | |
613 | default "9" if PPC32 && PPC_16K_PAGES | |
614 | range 7 64 if PPC32 && PPC_64K_PAGES | |
615 | default "7" if PPC32 && PPC_64K_PAGES | |
616 | range 5 64 if PPC32 && PPC_256K_PAGES | |
617 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 618 | range 11 64 |
53bcddb9 SR |
619 | default "11" |
620 | help | |
621 | The kernel memory allocator divides physically contiguous memory | |
622 | blocks into "zones", where each zone is a power of two number of | |
623 | pages. This option selects the largest power of two that the kernel | |
624 | keeps in the memory allocator. If you need to allocate very large | |
625 | blocks of physically contiguous memory, then you may need to | |
626 | increase this value. | |
627 | ||
628 | This config option is actually maximum order plus one. For example, | |
629 | a value of 11 means that the largest free memory block is 2^10 pages. | |
630 | ||
631 | The page size is not necessarily 4KB. For example, on 64-bit | |
632 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
633 | this in mind when choosing a value for this option. | |
634 | ||
fa28237c PM |
635 | config PPC_SUBPAGE_PROT |
636 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 637 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
638 | help |
639 | This option adds support for a system call to allow user programs | |
640 | to set access permissions (read/write, readonly, or no access) | |
641 | on the 4k subpages of each 64k page. | |
642 | ||
e83d0169 IM |
643 | config PPC_COPRO_BASE |
644 | bool | |
645 | default n | |
646 | ||
14cf11af PM |
647 | config SCHED_SMT |
648 | bool "SMT (Hyperthreading) scheduler support" | |
649 | depends on PPC64 && SMP | |
14cf11af PM |
650 | help |
651 | SMT scheduler support improves the CPU scheduler's decision making | |
652 | when dealing with POWER5 cpus at a cost of slightly increased | |
653 | overhead in some places. If unsure say N here. | |
654 | ||
b92a66a6 MN |
655 | config PPC_DENORMALISATION |
656 | bool "PowerPC denormalisation exception handling" | |
657 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 658 | default "y" if PPC_POWERNV |
b92a66a6 MN |
659 | ---help--- |
660 | Add support for handling denormalisation of single precision | |
661 | values. Useful for bare metal only. If unsure say Y here. | |
662 | ||
14cf11af PM |
663 | config CMDLINE_BOOL |
664 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
665 | |
666 | config CMDLINE | |
667 | string "Initial kernel command string" | |
668 | depends on CMDLINE_BOOL | |
669 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
670 | help | |
671 | On some platforms, there is currently no way for the boot loader to | |
672 | pass arguments to the kernel. For these platforms, you can supply | |
673 | some command-line options at build time by entering them here. In | |
674 | most cases you will need to specify the root device here. | |
675 | ||
eb3b80f6 SS |
676 | config CMDLINE_FORCE |
677 | bool "Always use the default kernel command string" | |
678 | depends on CMDLINE_BOOL | |
679 | help | |
680 | Always use the default kernel command string, even if the boot | |
681 | loader passes other arguments to the kernel. | |
682 | This is useful if you cannot or don't want to change the | |
683 | command-line options your boot loader passes to the kernel. | |
684 | ||
c356aa45 GL |
685 | config EXTRA_TARGETS |
686 | string "Additional default image types" | |
687 | help | |
688 | List additional targets to be built by the bootwrapper here (separated | |
689 | by spaces). This is useful for targets that depend of device tree | |
690 | files in the .dts directory. | |
691 | ||
692 | Targets in this list will be build as part of the default build | |
693 | target, or when the user does a 'make zImage' or a | |
694 | 'make zImage.initrd'. | |
695 | ||
696 | If unsure, leave blank | |
697 | ||
b28f5081 JB |
698 | config ARCH_WANTS_FREEZER_CONTROL |
699 | def_bool y | |
700 | depends on ADB_PMU | |
701 | ||
14cf11af | 702 | source kernel/power/Kconfig |
14cf11af PM |
703 | |
704 | config SECCOMP | |
705 | bool "Enable seccomp to safely compute untrusted bytecode" | |
706 | depends on PROC_FS | |
707 | default y | |
708 | help | |
709 | This kernel feature is useful for number crunching applications | |
710 | that may need to compute untrusted bytecode during their | |
711 | execution. By using pipes or other transports made available to | |
712 | the process as file descriptors supporting the read/write | |
713 | syscalls, it's possible to isolate those applications in | |
714 | their own address space using seccomp. Once seccomp is | |
715 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
716 | and the task is only allowed to execute a few safe syscalls | |
717 | defined by each seccomp mode. | |
718 | ||
719 | If unsure, say Y. Only embedded should say N here. | |
720 | ||
721 | endmenu | |
722 | ||
723 | config ISA_DMA_API | |
724 | bool | |
3d066d77 | 725 | default PCI |
14cf11af PM |
726 | |
727 | menu "Bus options" | |
728 | ||
729 | config ISA | |
730 | bool "Support for ISA-bus hardware" | |
933ee711 | 731 | depends on PPC_CHRP |
f9bd170a | 732 | select PPC_I8259 |
14cf11af PM |
733 | help |
734 | Find out whether you have ISA slots on your motherboard. ISA is the | |
735 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
736 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
737 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
738 | embedded board, consult your board documentation. | |
14cf11af | 739 | |
5ac6da66 CL |
740 | config ZONE_DMA |
741 | bool | |
742 | default y | |
743 | ||
af407c6d FT |
744 | config NEED_DMA_MAP_STATE |
745 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
746 | ||
e32205eb FT |
747 | config NEED_SG_DMA_LENGTH |
748 | def_bool y | |
749 | ||
14cf11af PM |
750 | config GENERIC_ISA_DMA |
751 | bool | |
1927445a | 752 | depends on ISA_DMA_API |
14cf11af PM |
753 | default y |
754 | ||
25635c71 PM |
755 | config PPC_INDIRECT_PCI |
756 | bool | |
757 | depends on PCI | |
63dafe57 | 758 | default y if 40x || 44x |
25635c71 PM |
759 | default n |
760 | ||
14cf11af PM |
761 | config EISA |
762 | bool | |
763 | ||
764 | config SBUS | |
765 | bool | |
766 | ||
08264cbc KG |
767 | config FSL_SOC |
768 | bool | |
769 | ||
55c44991 RZ |
770 | config FSL_PCI |
771 | bool | |
772 | select PPC_INDIRECT_PCI | |
d0839118 | 773 | select PCI_QUIRKS |
55c44991 | 774 | |
4ffd6952 AV |
775 | config FSL_PMC |
776 | bool | |
777 | default y | |
778 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
779 | help | |
780 | Freescale MPC85xx/MPC86xx power management controller support | |
781 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
782 | ||
d164f6d4 VG |
783 | config PPC4xx_CPM |
784 | bool | |
785 | default y | |
786 | depends on SUSPEND && (44x || 40x) | |
787 | help | |
788 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
789 | It also enables support for two different idle states (idle-wait | |
790 | and idle-doze). | |
791 | ||
2a706919 SR |
792 | config 4xx_SOC |
793 | bool | |
794 | ||
acaa7aa3 | 795 | config FSL_LBC |
3ab8f2a2 RZ |
796 | bool "Freescale Local Bus support" |
797 | depends on FSL_SOC | |
acaa7aa3 | 798 | help |
3ab8f2a2 RZ |
799 | Enables reporting of errors from the Freescale local bus |
800 | controller. Also contains some common code used by | |
801 | drivers for specific local bus peripherals. | |
acaa7aa3 | 802 | |
83ff9dcf AV |
803 | config FSL_GTM |
804 | bool | |
805 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
806 | help | |
807 | Freescale General-purpose Timers support | |
808 | ||
14cf11af PM |
809 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
810 | config MCA | |
811 | bool | |
812 | ||
b500563b JR |
813 | # Platforms that what PCI turned unconditionally just do select PCI |
814 | # in their config node. Platforms that want to choose at config | |
815 | # time should select PPC_PCI_CHOICE | |
816 | config PPC_PCI_CHOICE | |
817 | bool | |
818 | ||
14cf11af | 819 | config PCI |
b500563b JR |
820 | bool "PCI support" if PPC_PCI_CHOICE |
821 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 822 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 823 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 824 | select GENERIC_PCI_IOMAP |
14cf11af PM |
825 | help |
826 | Find out whether your system includes a PCI bus. PCI is the name of | |
827 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
828 | your box. If you say Y here, the kernel will include drivers and | |
829 | infrastructure code to support PCI bus devices. | |
830 | ||
831 | config PCI_DOMAINS | |
36e23590 MW |
832 | def_bool PCI |
833 | ||
834 | config PCI_SYSCALL | |
835 | def_bool PCI | |
14cf11af | 836 | |
14cf11af PM |
837 | config PCI_QSPAN |
838 | bool "QSpan PCI" | |
839 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 840 | select PPC_I8259 |
14cf11af PM |
841 | help |
842 | Say Y here if you have a system based on a Motorola 8xx-series | |
843 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
844 | ||
845 | config PCI_8260 | |
846 | bool | |
847 | depends on PCI && 8260 | |
25635c71 | 848 | select PPC_INDIRECT_PCI |
14cf11af PM |
849 | default y |
850 | ||
14cf11af PM |
851 | source "drivers/pci/Kconfig" |
852 | ||
853 | source "drivers/pcmcia/Kconfig" | |
854 | ||
f1f389d5 ZW |
855 | config HAS_RAPIDIO |
856 | bool | |
857 | default n | |
858 | ||
859 | config RAPIDIO | |
56abde72 | 860 | tristate "RapidIO support" |
388b78ad | 861 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
862 | help |
863 | If you say Y here, the kernel will include drivers and | |
864 | infrastructure code to support RapidIO interconnect devices. | |
865 | ||
388b78ad AB |
866 | config FSL_RIO |
867 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 868 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
869 | default "n" |
870 | ---help--- | |
871 | Include support for RapidIO controller on Freescale embedded | |
872 | processors (MPC8548, MPC8641, etc). | |
873 | ||
f1f389d5 ZW |
874 | source "drivers/rapidio/Kconfig" |
875 | ||
14cf11af PM |
876 | endmenu |
877 | ||
0f890c8d SP |
878 | config NONSTATIC_KERNEL |
879 | bool | |
880 | default n | |
881 | ||
14cf11af PM |
882 | menu "Advanced setup" |
883 | depends on PPC32 | |
884 | ||
885 | config ADVANCED_OPTIONS | |
886 | bool "Prompt for advanced kernel configuration options" | |
887 | help | |
888 | This option will enable prompting for a variety of advanced kernel | |
889 | configuration options. These options can cause the kernel to not | |
890 | work if they are set incorrectly, but can be used to optimize certain | |
891 | aspects of kernel memory management. | |
892 | ||
893 | Unless you know what you are doing, say N here. | |
894 | ||
895 | comment "Default settings for advanced configuration options are used" | |
896 | depends on !ADVANCED_OPTIONS | |
897 | ||
14cf11af PM |
898 | config LOWMEM_SIZE_BOOL |
899 | bool "Set maximum low memory" | |
900 | depends on ADVANCED_OPTIONS | |
901 | help | |
902 | This option allows you to set the maximum amount of memory which | |
903 | will be used as "low memory", that is, memory which the kernel can | |
904 | access directly, without having to set up a kernel virtual mapping. | |
905 | This can be useful in optimizing the layout of kernel virtual | |
906 | memory. | |
907 | ||
908 | Say N here unless you know what you are doing. | |
909 | ||
910 | config LOWMEM_SIZE | |
911 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
912 | default "0x30000000" | |
913 | ||
96051465 TP |
914 | config LOWMEM_CAM_NUM_BOOL |
915 | bool "Set number of CAMs to use to map low memory" | |
916 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
917 | help | |
918 | This option allows you to set the maximum number of CAM slots that | |
919 | will be used to map low memory. There are a limited number of slots | |
920 | available and even more limited number that will fit in the L1 MMU. | |
921 | However, using more entries will allow mapping more low memory. This | |
922 | can be useful in optimizing the layout of kernel virtual memory. | |
923 | ||
924 | Say N here unless you know what you are doing. | |
925 | ||
926 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 927 | depends on FSL_BOOKE |
96051465 TP |
928 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
929 | default 3 | |
930 | ||
0f890c8d | 931 | config DYNAMIC_MEMSTART |
642e56ff KC |
932 | bool "Enable page aligned dynamic load address for kernel" |
933 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
934 | select NONSTATIC_KERNEL |
935 | help | |
936 | This option enables the kernel to be loaded at any page aligned | |
937 | physical address. The kernel creates a mapping from KERNELBASE to | |
938 | the address where the kernel is loaded. The page size here implies | |
939 | the TLB page size of the mapping for kernel on the particular platform. | |
940 | Please refer to the init code for finding the TLB page size. | |
941 | ||
942 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
943 | kernel image, where the only restriction is the page aligned kernel | |
944 | load address. When this option is enabled, the compile time physical | |
945 | address CONFIG_PHYSICAL_START is ignored. | |
946 | ||
9c5f7d39 SP |
947 | This option is overridden by CONFIG_RELOCATABLE |
948 | ||
37dd2bad | 949 | config RELOCATABLE |
642e56ff | 950 | bool "Build a relocatable kernel" |
dd189692 | 951 | depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) |
9c5f7d39 | 952 | select NONSTATIC_KERNEL |
37dd2bad KG |
953 | help |
954 | This builds a kernel image that is capable of running at the | |
9c5f7d39 SP |
955 | location the kernel is loaded at, without any alignment restrictions. |
956 | This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. | |
37dd2bad KG |
957 | |
958 | One use is for the kexec on panic case where the recovery kernel | |
959 | must live at a different physical address than the primary | |
960 | kernel. | |
961 | ||
962 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
963 | it has been loaded at and the compile time physical addresses | |
964 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
965 | setting can still be useful to bootwrappers that need to know the | |
9c5f7d39 SP |
966 | load address of the kernel (eg. u-boot/mkimage). |
967 | ||
968 | config RELOCATABLE_PPC32 | |
969 | def_bool y | |
970 | depends on PPC32 && RELOCATABLE | |
37dd2bad KG |
971 | |
972 | config PAGE_OFFSET_BOOL | |
973 | bool "Set custom page offset address" | |
974 | depends on ADVANCED_OPTIONS | |
975 | help | |
976 | This option allows you to set the kernel virtual address at which | |
977 | the kernel will map low memory. This can be useful in optimizing | |
978 | the virtual memory layout of the system. | |
979 | ||
980 | Say N here unless you know what you are doing. | |
981 | ||
982 | config PAGE_OFFSET | |
983 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
984 | default "0xc0000000" | |
985 | ||
14cf11af PM |
986 | config KERNEL_START_BOOL |
987 | bool "Set custom kernel base address" | |
988 | depends on ADVANCED_OPTIONS | |
989 | help | |
990 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
991 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
992 | however there are times (like kdump) that one might not want them | |
993 | to be the same. | |
14cf11af PM |
994 | |
995 | Say N here unless you know what you are doing. | |
996 | ||
997 | config KERNEL_START | |
998 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 999 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1000 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1001 | default "0xc0000000" |
1002 | ||
37dd2bad KG |
1003 | config PHYSICAL_START_BOOL |
1004 | bool "Set physical address where the kernel is loaded" | |
1005 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1006 | help | |
1007 | This gives the physical address where the kernel is loaded. | |
1008 | ||
1009 | Say N here unless you know what you are doing. | |
1010 | ||
1011 | config PHYSICAL_START | |
1012 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1013 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1014 | default "0x00000000" |
1015 | ||
1016 | config PHYSICAL_ALIGN | |
1017 | hex | |
c8f3570b | 1018 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1019 | help |
1020 | This value puts the alignment restrictions on physical address | |
1021 | where kernel is loaded and run from. Kernel is compiled for an | |
1022 | address which meets above alignment restriction. | |
1023 | ||
14cf11af PM |
1024 | config TASK_SIZE_BOOL |
1025 | bool "Set custom user task size" | |
1026 | depends on ADVANCED_OPTIONS | |
1027 | help | |
1028 | This option allows you to set the amount of virtual address space | |
1029 | allocated to user tasks. This can be useful in optimizing the | |
1030 | virtual memory layout of the system. | |
1031 | ||
1032 | Say N here unless you know what you are doing. | |
1033 | ||
1034 | config TASK_SIZE | |
1035 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1036 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1037 | default "0xc0000000" |
14cf11af | 1038 | |
84532a0f BH |
1039 | config CONSISTENT_SIZE_BOOL |
1040 | bool "Set custom consistent memory pool size" | |
1041 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1042 | help | |
1043 | This option allows you to set the size of the | |
1044 | consistent memory pool. This pool of virtual memory | |
1045 | is used to make consistent memory allocations. | |
1046 | ||
1047 | config CONSISTENT_SIZE | |
1048 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1049 | default "0x00200000" if NOT_COHERENT_CACHE | |
1050 | ||
14cf11af PM |
1051 | config PIN_TLB |
1052 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1053 | depends on ADVANCED_OPTIONS && 8xx | |
1054 | endmenu | |
1055 | ||
cabb5587 | 1056 | if PPC64 |
549e8152 PM |
1057 | config RELOCATABLE |
1058 | bool "Build a relocatable kernel" | |
fb43e847 | 1059 | depends on !COMPILE_TEST |
0f890c8d | 1060 | select NONSTATIC_KERNEL |
549e8152 PM |
1061 | help |
1062 | This builds a kernel image that is capable of running anywhere | |
1063 | in the RMA (real memory area) at any 16k-aligned base address. | |
1064 | The kernel is linked as a position-independent executable (PIE) | |
1065 | and contains dynamic relocations which are processed early | |
1066 | in the bootup process. | |
1067 | ||
1068 | One use is for the kexec on panic case where the recovery kernel | |
1069 | must live at a different physical address than the primary | |
1070 | kernel. | |
1071 | ||
bdbc29c1 | 1072 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1073 | config PAGE_OFFSET |
1074 | hex | |
1075 | default "0xc000000000000000" | |
cabb5587 SR |
1076 | config KERNEL_START |
1077 | hex | |
eeb2d218 | 1078 | default "0xc000000000000000" |
37dd2bad KG |
1079 | config PHYSICAL_START |
1080 | hex | |
37dd2bad | 1081 | default "0x00000000" |
cabb5587 SR |
1082 | endif |
1083 | ||
a4da0d50 ME |
1084 | config ARCH_RANDOM |
1085 | def_bool n | |
1086 | ||
14cf11af PM |
1087 | source "net/Kconfig" |
1088 | ||
1089 | source "drivers/Kconfig" | |
1090 | ||
1091 | source "fs/Kconfig" | |
1092 | ||
14cf11af PM |
1093 | source "lib/Kconfig" |
1094 | ||
14cf11af PM |
1095 | source "arch/powerpc/Kconfig.debug" |
1096 | ||
1097 | source "security/Kconfig" | |
1098 | ||
1099 | config KEYS_COMPAT | |
1100 | bool | |
1101 | depends on COMPAT && KEYS | |
1102 | default y | |
1103 | ||
1104 | source "crypto/Kconfig" | |
6f668280 | 1105 | |
1088a209 SM |
1106 | config PPC_LIB_RHEAP |
1107 | bool | |
1108 | ||
bbf45ba5 | 1109 | source "arch/powerpc/kvm/Kconfig" |