Commit | Line | Data |
---|---|---|
a0ae9c7c | 1 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 2 | |
14cf11af PM |
3 | config PPC32 |
4 | bool | |
5 | default y if !PPC64 | |
6 | ||
234a71a7 | 7 | config 32BIT |
8 | bool | |
9 | default y if PPC32 | |
10 | ||
14cf11af PM |
11 | config 64BIT |
12 | bool | |
13 | default y if PPC64 | |
14 | ||
600715dc JF |
15 | config ARCH_PHYS_ADDR_T_64BIT |
16 | def_bool PPC64 || PHYS_64BIT | |
17 | ||
787d44ca FT |
18 | config ARCH_DMA_ADDR_T_64BIT |
19 | def_bool ARCH_PHYS_ADDR_T_64BIT | |
20 | ||
14cf11af PM |
21 | config MMU |
22 | bool | |
23 | default y | |
24 | ||
9fea59bd ME |
25 | config ARCH_MMAP_RND_BITS_MAX |
26 | # On Book3S 64, the default virtual address space for 64-bit processes | |
27 | # is 2^47 (128TB). As a maximum, allow randomisation to consume up to | |
28 | # 32T of address space (2^45), which should ensure a reasonable gap | |
29 | # between bottom-up and top-down allocations for applications that | |
30 | # consume "normal" amounts of address space. Book3S 64 only supports 64K | |
31 | # and 4K page sizes. | |
32 | default 29 if PPC_BOOK3S_64 && PPC_64K_PAGES # 29 = 45 (32T) - 16 (64K) | |
33 | default 33 if PPC_BOOK3S_64 # 33 = 45 (32T) - 12 (4K) | |
34 | # | |
35 | # On all other 64-bit platforms (currently only Book3E), the virtual | |
36 | # address space is 2^46 (64TB). Allow randomisation to consume up to 16T | |
37 | # of address space (2^44). Only 4K page sizes are supported. | |
38 | default 32 if 64BIT # 32 = 44 (16T) - 12 (4K) | |
39 | # | |
40 | # For 32-bit, use the compat values, as they're the same. | |
41 | default ARCH_MMAP_RND_COMPAT_BITS_MAX | |
42 | ||
43 | config ARCH_MMAP_RND_BITS_MIN | |
44 | # Allow randomisation to consume up to 1GB of address space (2^30). | |
45 | default 14 if 64BIT && PPC_64K_PAGES # 14 = 30 (1GB) - 16 (64K) | |
46 | default 18 if 64BIT # 18 = 30 (1GB) - 12 (4K) | |
47 | # | |
48 | # For 32-bit, use the compat values, as they're the same. | |
49 | default ARCH_MMAP_RND_COMPAT_BITS_MIN | |
50 | ||
51 | config ARCH_MMAP_RND_COMPAT_BITS_MAX | |
52 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
53 | # Allow randomisation to consume up to 512MB of address space (2^29). | |
54 | default 11 if PPC_256K_PAGES # 11 = 29 (512MB) - 18 (256K) | |
55 | default 13 if PPC_64K_PAGES # 13 = 29 (512MB) - 16 (64K) | |
56 | default 15 if PPC_16K_PAGES # 15 = 29 (512MB) - 14 (16K) | |
57 | default 17 # 17 = 29 (512MB) - 12 (4K) | |
58 | ||
59 | config ARCH_MMAP_RND_COMPAT_BITS_MIN | |
60 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
61 | # Allow randomisation to consume up to 8MB of address space (2^23). | |
62 | default 5 if PPC_256K_PAGES # 5 = 23 (8MB) - 18 (256K) | |
63 | default 7 if PPC_64K_PAGES # 7 = 23 (8MB) - 16 (64K) | |
64 | default 9 if PPC_16K_PAGES # 9 = 23 (8MB) - 14 (16K) | |
65 | default 11 # 11 = 23 (8MB) - 12 (4K) | |
66 | ||
c2a7e818 | 67 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
68 | def_bool PPC64 |
69 | ||
c2a7e818 | 70 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 71 | def_bool PPC64 |
72 | ||
551b81f2 ME |
73 | config NR_IRQS |
74 | int "Number of virtual interrupt numbers" | |
859aefc5 | 75 | range 32 32768 |
551b81f2 ME |
76 | default "512" |
77 | help | |
78 | This defines the number of virtual interrupt numbers the kernel | |
79 | can manage. Virtual interrupt numbers are what you see in | |
80 | /proc/interrupts. If you configure your system to have too few, | |
81 | drivers will fail to load or worse - handle with care. | |
82 | ||
ddd703ca NP |
83 | config NMI_IPI |
84 | bool | |
2104180a | 85 | depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR) |
ddd703ca NP |
86 | default y |
87 | ||
75eb767e NP |
88 | config PPC_WATCHDOG |
89 | bool | |
90 | depends on HARDLOCKUP_DETECTOR | |
91 | depends on HAVE_HARDLOCKUP_DETECTOR_ARCH | |
92 | default y | |
93 | help | |
94 | This is a placeholder when the powerpc hardlockup detector | |
95 | watchdog is selected (arch/powerpc/kernel/watchdog.c). It is | |
96 | seleted via the generic lockup detector menu which is why we | |
97 | have no standalone config option for it here. | |
98 | ||
fd3e0bbc CH |
99 | config STACKTRACE_SUPPORT |
100 | bool | |
101 | default y | |
102 | ||
945feb17 BH |
103 | config TRACE_IRQFLAGS_SUPPORT |
104 | bool | |
945feb17 BH |
105 | default y |
106 | ||
107 | config LOCKDEP_SUPPORT | |
108 | bool | |
109 | default y | |
110 | ||
14cf11af PM |
111 | config RWSEM_GENERIC_SPINLOCK |
112 | bool | |
113 | ||
114 | config RWSEM_XCHGADD_ALGORITHM | |
115 | bool | |
116 | default y | |
117 | ||
95c354fe NP |
118 | config GENERIC_LOCKBREAK |
119 | bool | |
120 | default y | |
121 | depends on SMP && PREEMPT | |
122 | ||
e779b2f9 AM |
123 | config GENERIC_HWEIGHT |
124 | bool | |
125 | default y | |
126 | ||
817820b0 BH |
127 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
128 | bool | |
129 | ||
14cf11af PM |
130 | config PPC |
131 | bool | |
132 | default y | |
a7d2475a ME |
133 | # |
134 | # Please keep this list sorted alphabetically. | |
135 | # | |
136 | select ARCH_HAS_DEVMEM_IS_ALLOWED | |
137 | select ARCH_HAS_DMA_SET_COHERENT_MASK | |
138 | select ARCH_HAS_ELF_RANDOMIZE | |
6974f0c4 | 139 | select ARCH_HAS_FORTIFY_SOURCE |
a7d2475a | 140 | select ARCH_HAS_GCOV_PROFILE_ALL |
32ce3862 | 141 | select ARCH_HAS_PMEM_API if PPC64 |
a7d2475a ME |
142 | select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE |
143 | select ARCH_HAS_SG_CHAIN | |
144 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
145 | select ARCH_HAS_UBSAN_SANITIZE_ALL | |
c0742441 | 146 | select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 |
a7d2475a | 147 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
b7e7c37b | 148 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 149 | select ARCH_MIGHT_HAVE_PC_SERIO |
a7d2475a ME |
150 | select ARCH_SUPPORTS_ATOMIC_RMW |
151 | select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT | |
152 | select ARCH_USE_BUILTIN_BSWAP | |
153 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 | |
154 | select ARCH_WANT_IPC_PARSE_VERSION | |
77e58496 | 155 | select ARCH_WEAK_RELEASE_ACQUIRE |
d812c0e1 | 156 | select BINFMT_ELF |
a7d2475a ME |
157 | select BUILDTIME_EXTABLE_SORT |
158 | select CLONE_BACKWARDS | |
159 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN | |
160 | select EDAC_ATOMIC_SCRUB | |
161 | select EDAC_SUPPORT | |
162 | select GENERIC_ATOMIC64 if PPC32 | |
163 | select GENERIC_CLOCKEVENTS | |
164 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP | |
165 | select GENERIC_CMOS_UPDATE | |
166 | select GENERIC_CPU_AUTOPROBE | |
167 | select GENERIC_IRQ_SHOW | |
168 | select GENERIC_IRQ_SHOW_LEVEL | |
169 | select GENERIC_SMP_IDLE_THREAD | |
170 | select GENERIC_STRNCPY_FROM_USER | |
171 | select GENERIC_STRNLEN_USER | |
d4cfb113 | 172 | select GENERIC_TIME_VSYSCALL |
a7d2475a | 173 | select HAVE_ARCH_AUDITSYSCALL |
a7d2475a ME |
174 | select HAVE_ARCH_JUMP_LABEL |
175 | select HAVE_ARCH_KGDB | |
9fea59bd ME |
176 | select HAVE_ARCH_MMAP_RND_BITS |
177 | select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT | |
a7d2475a ME |
178 | select HAVE_ARCH_SECCOMP_FILTER |
179 | select HAVE_ARCH_TRACEHOOK | |
95902e6c | 180 | select ARCH_HAS_STRICT_KERNEL_RWX if ((PPC_BOOK3S_64 || PPC32) && !RELOCATABLE && !HIBERNATION) |
1e0fc9d1 | 181 | select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX |
a7d2475a ME |
182 | select HAVE_CBPF_JIT if !PPC64 |
183 | select HAVE_CONTEXT_TRACKING if PPC64 | |
184 | select HAVE_DEBUG_KMEMLEAK | |
185 | select HAVE_DEBUG_STACKOVERFLOW | |
186 | select HAVE_DMA_API_DEBUG | |
2b79d696 | 187 | select HAVE_DYNAMIC_FTRACE |
a7d2475a ME |
188 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
189 | select HAVE_EBPF_JIT if PPC64 | |
190 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU) | |
191 | select HAVE_FTRACE_MCOUNT_RECORD | |
60ce8f72 | 192 | select HAVE_FUNCTION_GRAPH_TRACER |
a7d2475a | 193 | select HAVE_FUNCTION_TRACER |
65c059bc | 194 | select HAVE_GCC_PLUGINS |
e585513b | 195 | select HAVE_GENERIC_GUP |
a7d2475a | 196 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) |
ec7748b5 | 197 | select HAVE_IDE |
a1f242ff | 198 | select HAVE_IOREMAP_PROT |
a7d2475a ME |
199 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
200 | select HAVE_KERNEL_GZIP | |
3f550096 | 201 | select HAVE_KPROBES |
ead514d5 | 202 | select HAVE_KPROBES_ON_FTRACE |
9edddaa2 | 203 | select HAVE_KRETPROBES |
a7d2475a | 204 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
95f72d1e | 205 | select HAVE_MEMBLOCK |
1d7cfe18 | 206 | select HAVE_MEMBLOCK_NODE_MAP |
a7d2475a | 207 | select HAVE_MOD_ARCH_SPECIFIC |
2104180a NP |
208 | select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) |
209 | select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S) | |
4e491d14 | 210 | select HAVE_OPROFILE |
a7d2475a | 211 | select HAVE_OPTPROBES if PPC64 |
cdd6c482 | 212 | select HAVE_PERF_EVENTS |
a7d2475a | 213 | select HAVE_PERF_EVENTS_NMI if PPC64 |
92e5aae4 | 214 | select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH |
ed4a4ef8 | 215 | select HAVE_PERF_REGS |
17ed7c38 | 216 | select HAVE_PERF_USER_STACK_DUMP |
a7d2475a | 217 | select HAVE_RCU_TABLE_FREE if SMP |
359e4284 | 218 | select HAVE_REGS_AND_STACK_ACCESS_API |
a7d2475a ME |
219 | select HAVE_SYSCALL_TRACEPOINTS |
220 | select HAVE_VIRT_CPU_ACCOUNTING | |
518470fe | 221 | select HAVE_IRQ_TIME_ACCOUNTING |
cc79ca69 | 222 | select IRQ_DOMAIN |
e8d2c473 | 223 | select IRQ_FORCED_THREADING |
786d35d4 | 224 | select MODULES_USE_ELF_RELA |
10239733 | 225 | select NO_BOOTMEM |
a7d2475a ME |
226 | select OF |
227 | select OF_EARLY_FLATTREE | |
228 | select OF_RESERVED_MEM | |
229 | select OLD_SIGACTION if PPC32 | |
230 | select OLD_SIGSUSPEND | |
231 | select SPARSE_IRQ | |
232 | select SYSCTL_EXCEPTION_TRACE | |
233 | select VIRT_TO_BUS if !PPC64 | |
234 | # | |
235 | # Please keep this list sorted alphabetically. | |
236 | # | |
14cf11af | 237 | |
7a332b0c | 238 | config GENERIC_CSUM |
d4fde568 | 239 | def_bool n |
7a332b0c | 240 | |
14cf11af PM |
241 | config EARLY_PRINTK |
242 | bool | |
51d3082f | 243 | default y |
14cf11af | 244 | |
b71d47c1 JB |
245 | config PANIC_TIMEOUT |
246 | int | |
247 | default 180 | |
248 | ||
14cf11af PM |
249 | config COMPAT |
250 | bool | |
251 | default y if PPC64 | |
01e31dba | 252 | select COMPAT_BINFMT_ELF |
48b25c43 | 253 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 254 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
255 | |
256 | config SYSVIPC_COMPAT | |
257 | bool | |
258 | depends on COMPAT && SYSVIPC | |
259 | default y | |
260 | ||
261 | # All PPC32s use generic nvram driver through ppc_md | |
262 | config GENERIC_NVRAM | |
263 | bool | |
264 | default y if PPC32 | |
265 | ||
ae1e9130 | 266 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
267 | bool |
268 | default y | |
269 | ||
270 | config ARCH_MAY_HAVE_PC_FDC | |
271 | bool | |
3484a31f | 272 | default PCI |
14cf11af | 273 | |
08264cbc KG |
274 | config PPC_UDBG_16550 |
275 | bool | |
276 | default n | |
277 | ||
08264cbc KG |
278 | config GENERIC_TBSYNC |
279 | bool | |
280 | default y if PPC32 && SMP | |
281 | default n | |
282 | ||
e65e1fc2 AV |
283 | config AUDIT_ARCH |
284 | bool | |
285 | default y | |
286 | ||
73c9ceab JF |
287 | config GENERIC_BUG |
288 | bool | |
289 | default y | |
290 | depends on BUG | |
291 | ||
b3028878 | 292 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 293 | default y if PMAC_APM_EMU |
b3028878 JB |
294 | bool |
295 | ||
6c5b59b9 DG |
296 | config EPAPR_BOOT |
297 | bool | |
298 | help | |
299 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
300 | default n | |
301 | ||
f4fc4a5b KG |
302 | config DEFAULT_UIMAGE |
303 | bool | |
304 | help | |
305 | Used to allow a board to specify it wants a uImage built by default | |
306 | default n | |
307 | ||
801e4062 JB |
308 | config ARCH_HIBERNATION_POSSIBLE |
309 | bool | |
543b9fd3 JB |
310 | default y |
311 | ||
f4cb5700 JB |
312 | config ARCH_SUSPEND_POSSIBLE |
313 | def_bool y | |
4ffd6952 | 314 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
315 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
316 | || 44x || 40x | |
f4cb5700 | 317 | |
4c75a6f4 BH |
318 | config PPC_DCR_NATIVE |
319 | bool | |
320 | default n | |
321 | ||
322 | config PPC_DCR_MMIO | |
323 | bool | |
324 | default n | |
325 | ||
326 | config PPC_DCR | |
327 | bool | |
328 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
329 | default y | |
330 | ||
4c9d2800 BH |
331 | config PPC_OF_PLATFORM_PCI |
332 | bool | |
373a6da1 | 333 | depends on PCI |
4c9d2800 BH |
334 | depends on PPC64 # not supported on 32 bits yet |
335 | default n | |
336 | ||
6a11f75b | 337 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
4e003747 | 338 | depends on PPC32 || PPC_BOOK3S_64 |
6a11f75b AM |
339 | def_bool y |
340 | ||
8b7b80b9 AM |
341 | config ARCH_SUPPORTS_UPROBES |
342 | def_bool y | |
343 | ||
172ae2e7 DK |
344 | config PPC_ADV_DEBUG_REGS |
345 | bool | |
346 | depends on 40x || BOOKE | |
347 | default y | |
348 | ||
349 | config PPC_ADV_DEBUG_IACS | |
350 | int | |
351 | depends on PPC_ADV_DEBUG_REGS | |
352 | default 4 if 44x | |
353 | default 2 | |
354 | ||
355 | config PPC_ADV_DEBUG_DACS | |
356 | int | |
357 | depends on PPC_ADV_DEBUG_REGS | |
358 | default 2 | |
359 | ||
360 | config PPC_ADV_DEBUG_DVCS | |
361 | int | |
362 | depends on PPC_ADV_DEBUG_REGS | |
363 | default 2 if 44x | |
364 | default 0 | |
365 | ||
366 | config PPC_ADV_DEBUG_DAC_RANGE | |
367 | bool | |
368 | depends on PPC_ADV_DEBUG_REGS && 44x | |
369 | default y | |
370 | ||
1c98025c SW |
371 | config ZONE_DMA32 |
372 | bool | |
373 | default y if PPC64 | |
374 | ||
06ef42a1 KS |
375 | config PGTABLE_LEVELS |
376 | int | |
377 | default 2 if !PPC64 | |
368ced78 | 378 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
379 | default 4 |
380 | ||
14cf11af PM |
381 | source "init/Kconfig" |
382 | ||
dc52ddc0 MH |
383 | source "kernel/Kconfig.freezer" |
384 | ||
a2d2e1ec | 385 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 386 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 387 | |
14cf11af PM |
388 | menu "Kernel options" |
389 | ||
390 | config HIGHMEM | |
391 | bool "High memory support" | |
392 | depends on PPC32 | |
393 | ||
394 | source kernel/Kconfig.hz | |
395 | source kernel/Kconfig.preempt | |
396 | source "fs/Kconfig.binfmt" | |
397 | ||
ba72cb8c MG |
398 | config HUGETLB_PAGE_SIZE_VARIABLE |
399 | bool | |
400 | depends on HUGETLB_PAGE | |
401 | default y | |
402 | ||
14cf11af PM |
403 | config MATH_EMULATION |
404 | bool "Math emulation" | |
968159c0 | 405 | depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
406 | ---help--- |
407 | Some PowerPC chips designed for embedded applications do not have | |
408 | a floating-point unit and therefore do not implement the | |
409 | floating-point instructions in the PowerPC instruction set. If you | |
410 | say Y here, the kernel will include code to emulate a floating-point | |
411 | unit, which will allow programs that use floating-point | |
412 | instructions to run. | |
413 | ||
4e63f8ed BH |
414 | This is also useful to emulate missing (optional) instructions |
415 | such as fsqrt on cores that do have an FPU but do not implement | |
416 | them (such as Freescale BookE). | |
417 | ||
e05c0e81 KH |
418 | choice |
419 | prompt "Math emulation options" | |
420 | default MATH_EMULATION_FULL | |
421 | depends on MATH_EMULATION | |
422 | ||
423 | config MATH_EMULATION_FULL | |
424 | bool "Emulate all the floating point instructions" | |
425 | ---help--- | |
426 | Select this option will enable the kernel to support to emulate | |
427 | all the floating point instructions. If your SoC doesn't have | |
428 | a FPU, you should select this. | |
429 | ||
430 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
431 | bool "Just emulate the FPU unimplemented instructions" | |
432 | ---help--- | |
433 | Select this if you know there does have a hardware FPU on your | |
434 | SoC, but some floating point instructions are not implemented by that. | |
435 | ||
436 | endchoice | |
437 | ||
3d72bbc4 MN |
438 | config PPC_TRANSACTIONAL_MEM |
439 | bool "Transactional Memory support for POWERPC" | |
440 | depends on PPC_BOOK3S_64 | |
441 | depends on SMP | |
7b37a123 MN |
442 | select ALTIVEC |
443 | select VSX | |
3d72bbc4 MN |
444 | default n |
445 | ---help--- | |
446 | Support user-mode Transactional Memory on POWERPC. | |
447 | ||
951eedeb NP |
448 | config LD_HEAD_STUB_CATCH |
449 | bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT | |
450 | depends on PPC64 | |
451 | default n | |
452 | help | |
453 | Very large kernels can cause linker branch stubs to be generated by | |
454 | code in head_64.S, which moves the head text sections out of their | |
455 | specified location. This option can work around the problem. | |
456 | ||
457 | If unsure, say "N". | |
458 | ||
8c50b72a TD |
459 | config DISABLE_MPROFILE_KERNEL |
460 | bool "Disable use of mprofile-kernel for kernel tracing" | |
461 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
462 | default y | |
463 | help | |
464 | Selecting this options disables use of the mprofile-kernel ABI for | |
465 | kernel tracing. That will cause options such as live patching | |
466 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
467 | be disabled also. | |
468 | ||
469 | If you have a toolchain which supports mprofile-kernel, then you can | |
496e9cb5 AB |
470 | disable this. Otherwise leave it enabled. If you're not sure, say |
471 | "Y". | |
8c50b72a TD |
472 | |
473 | config MPROFILE_KERNEL | |
474 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
475 | def_bool !DISABLE_MPROFILE_KERNEL | |
476 | ||
fb3475e9 FT |
477 | config IOMMU_HELPER |
478 | def_bool PPC64 | |
479 | ||
ec3cf2ec BB |
480 | config SWIOTLB |
481 | bool "SWIOTLB support" | |
482 | default n | |
483 | select IOMMU_HELPER | |
484 | ---help--- | |
485 | Support for IO bounce buffering for systems without an IOMMU. | |
486 | This allows us to DMA to the full physical address space on | |
487 | platforms where the size of a physical address is larger | |
488 | than the bus address. Not all platforms support this. | |
489 | ||
14cf11af PM |
490 | config HOTPLUG_CPU |
491 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 492 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 493 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
494 | ---help--- |
495 | Say Y here to be able to disable and re-enable individual | |
496 | CPUs at runtime on SMP machines. | |
497 | ||
498 | Say N if you are unsure. | |
499 | ||
12633e80 NF |
500 | config ARCH_CPU_PROBE_RELEASE |
501 | def_bool y | |
502 | depends on HOTPLUG_CPU | |
503 | ||
cc57637b YG |
504 | config ARCH_ENABLE_MEMORY_HOTPLUG |
505 | def_bool y | |
506 | ||
a99824f3 BP |
507 | config ARCH_HAS_WALK_MEMORY |
508 | def_bool y | |
509 | ||
1482471d BP |
510 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
511 | def_bool y | |
512 | ||
f2296a3d MS |
513 | config PPC64_SUPPORTS_MEMORY_FAILURE |
514 | bool "Add support for memory hwpoison" | |
515 | depends on PPC_BOOK3S_64 | |
516 | default "y" if PPC_POWERNV | |
517 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
518 | ||
14cf11af | 519 | config KEXEC |
642e56ff | 520 | bool "kexec system call" |
96eea642 | 521 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 522 | select KEXEC_CORE |
14cf11af PM |
523 | help |
524 | kexec is a system call that implements the ability to shutdown your | |
525 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 526 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
527 | you can start any kernel with it, not just Linux. |
528 | ||
1f1332f7 | 529 | The name comes from the similarity to the exec system call. |
14cf11af PM |
530 | |
531 | It is an ongoing process to be certain the hardware in a machine | |
532 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
533 | initially work for you. As of this writing the exact hardware |
534 | interface is strongly in flux, so no good recommendation can be | |
535 | made. | |
14cf11af | 536 | |
80f60e50 TJB |
537 | config KEXEC_FILE |
538 | bool "kexec file based system call" | |
539 | select KEXEC_CORE | |
467d2782 | 540 | select HAVE_IMA_KEXEC |
80f60e50 TJB |
541 | select BUILD_BIN2C |
542 | depends on PPC64 | |
543 | depends on CRYPTO=y | |
544 | depends on CRYPTO_SHA256=y | |
545 | help | |
546 | This is a new version of the kexec system call. This call is | |
547 | file based and takes in file descriptors as system call arguments | |
548 | for kernel and initramfs as opposed to a list of segments as is the | |
549 | case for the older kexec call. | |
550 | ||
4c91bd6e KH |
551 | config RELOCATABLE |
552 | bool "Build a relocatable kernel" | |
084a275e | 553 | depends on PPC64 || (FLATMEM && (44x || FSL_BOOKE)) |
4c91bd6e | 554 | select NONSTATIC_KERNEL |
71810db2 | 555 | select MODULE_REL_CRCS if MODVERSIONS |
4c91bd6e KH |
556 | help |
557 | This builds a kernel image that is capable of running at the | |
558 | location the kernel is loaded at. For ppc32, there is no any | |
559 | alignment restrictions, and this feature is a superset of | |
560 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
561 | 16k-aligned base address. The kernel is linked as a | |
562 | position-independent executable (PIE) and contains dynamic relocations | |
563 | which are processed early in the bootup process. | |
564 | ||
565 | One use is for the kexec on panic case where the recovery kernel | |
566 | must live at a different physical address than the primary | |
567 | kernel. | |
568 | ||
569 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
570 | it has been loaded at and the compile time physical addresses | |
571 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
572 | setting can still be useful to bootwrappers that need to know the | |
573 | load address of the kernel (eg. u-boot/mkimage). | |
574 | ||
70839d20 NP |
575 | config RELOCATABLE_TEST |
576 | bool "Test relocatable kernel" | |
577 | depends on (PPC64 && RELOCATABLE) | |
578 | default n | |
579 | help | |
580 | This runs the relocatable kernel at the address it was initially | |
581 | loaded at, which tends to be non-zero and therefore test the | |
582 | relocation code. | |
583 | ||
e8625d46 | 584 | config CRASH_DUMP |
22bd0177 | 585 | bool "Build a dump capture kernel" |
47da4219 | 586 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
084a275e | 587 | select RELOCATABLE if PPC64 || 44x || FSL_BOOKE |
e8625d46 | 588 | help |
22bd0177 | 589 | Build a kernel suitable for use as a dump capture kernel. |
54622f10 MK |
590 | The same kernel binary can be used as production kernel and dump |
591 | capture kernel. | |
e8625d46 | 592 | |
eb39c880 MS |
593 | config FA_DUMP |
594 | bool "Firmware-assisted dump" | |
22bd0177 HB |
595 | depends on PPC64 && PPC_RTAS |
596 | select CRASH_CORE | |
597 | select CRASH_DUMP | |
242f271c | 598 | help |
eb39c880 MS |
599 | A robust mechanism to get reliable kernel crash dump with |
600 | assistance from firmware. This approach does not use kexec, | |
22bd0177 | 601 | instead firmware assists in booting the capture kernel |
eb39c880 MS |
602 | while preserving memory contents. Firmware-assisted dump |
603 | is meant to be a kdump replacement offering robustness and | |
604 | speed not possible without system firmware assistance. | |
242f271c MA |
605 | |
606 | If unsure, say "N" | |
607 | ||
14cf11af PM |
608 | config IRQ_ALL_CPUS |
609 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 610 | depends on SMP |
14cf11af PM |
611 | help |
612 | This option gives the kernel permission to distribute IRQs across | |
613 | multiple CPUs. Saying N here will route all IRQs to the first | |
614 | CPU. Generally saying Y is safe, although some problems have been | |
615 | reported with SMP Power Macintoshes with this option enabled. | |
616 | ||
ffa27b6b AW |
617 | config NUMA |
618 | bool "NUMA support" | |
619 | depends on PPC64 | |
620 | default y if SMP && PPC_PSERIES | |
621 | ||
c80d79d7 YG |
622 | config NODES_SHIFT |
623 | int | |
ea55bf29 | 624 | default "8" if PPC64 |
c80d79d7 YG |
625 | default "4" |
626 | depends on NEED_MULTIPLE_NODES | |
627 | ||
8c272261 NA |
628 | config USE_PERCPU_NUMA_NODE_ID |
629 | def_bool y | |
630 | depends on NUMA | |
631 | ||
64bb80d8 NA |
632 | config HAVE_MEMORYLESS_NODES |
633 | def_bool y | |
634 | depends on NUMA | |
635 | ||
14cf11af PM |
636 | config ARCH_SELECT_MEMORY_MODEL |
637 | def_bool y | |
638 | depends on PPC64 | |
639 | ||
640 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
641 | def_bool y |
642 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 643 | |
45fb6cea | 644 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 645 | def_bool y |
9100b205 | 646 | depends on PPC64 |
d29eff7b | 647 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 648 | |
45fb6cea | 649 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 650 | def_bool y |
7b3912f4 | 651 | depends on PPC_BOOK3S_64 |
14cf11af | 652 | |
5a1eb5c4 | 653 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 654 | bool |
5a1eb5c4 | 655 | |
f6853eb5 ME |
656 | config ILLEGAL_POINTER_VALUE |
657 | hex | |
658 | # This is roughly half way between the top of user space and the bottom | |
659 | # of kernel space, which seems about as good as we can get. | |
660 | default 0x5deadbeef0000000 if PPC64 | |
661 | default 0 | |
662 | ||
c67c3cb4 | 663 | source "mm/Kconfig" |
14cf11af | 664 | |
7e9191da MK |
665 | config ARCH_MEMORY_PROBE |
666 | def_bool y | |
667 | depends on MEMORY_HOTPLUG | |
668 | ||
75167957 AW |
669 | # Some NUMA nodes have memory ranges that span |
670 | # other nodes. Even though a pfn is valid and | |
671 | # between a node's start and end pfns, it may not | |
672 | # reside on that node. See memmap_init_zone() | |
673 | # for details. | |
674 | config NODES_SPAN_OTHER_NODES | |
675 | def_bool y | |
676 | depends on NEED_MULTIPLE_NODES | |
677 | ||
e1240122 YT |
678 | config STDBINUTILS |
679 | bool "Using standard binutils settings" | |
680 | depends on 44x | |
681 | default y | |
682 | help | |
683 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
684 | Note, that kernel will be able to run only those applications, | |
685 | which had been compiled using binutils later than 2.17.50.0.3 with | |
686 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
687 | the older binutils, you can patch them with a trivial patch, which | |
688 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
689 | ||
ca9153a3 IY |
690 | choice |
691 | prompt "Page size" | |
692 | default PPC_4K_PAGES | |
3c726f8d | 693 | help |
ca9153a3 IY |
694 | Select the kernel logical page size. Increasing the page size |
695 | will reduce software overhead at each page boundary, allow | |
696 | hardware prefetch mechanisms to be more effective, and allow | |
697 | larger dma transfers increasing IO efficiency and reducing | |
698 | overhead. However the utilization of memory will increase. | |
699 | For example, each cached file will using a multiple of the | |
700 | page size to hold its contents and the difference between the | |
701 | end of file and the end of page is wasted. | |
702 | ||
703 | Some dedicated systems, such as software raid serving with | |
704 | accelerated calculations, have shown significant increases. | |
705 | ||
706 | If you configure a 64 bit kernel for 64k pages but the | |
707 | processor does not support them, then the kernel will simulate | |
708 | them with 4k pages, loading them on demand, but with the | |
709 | reduced software overhead and larger internal fragmentation. | |
710 | For the 32 bit kernel, a large page option will not be offered | |
711 | unless it is supported by the configured processor. | |
712 | ||
713 | If unsure, choose 4K_PAGES. | |
714 | ||
715 | config PPC_4K_PAGES | |
716 | bool "4k page size" | |
19f97c98 | 717 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
718 | |
719 | config PPC_16K_PAGES | |
55f8b5b8 ME |
720 | bool "16k page size" |
721 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
722 | |
723 | config PPC_64K_PAGES | |
55f8b5b8 | 724 | bool "64k page size" |
4e003747 | 725 | depends on !PPC_FSL_BOOK3E && (44x || PPC_BOOK3S_64 || PPC_BOOK3E_64) |
19f97c98 | 726 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 727 | |
e1240122 | 728 | config PPC_256K_PAGES |
55f8b5b8 ME |
729 | bool "256k page size" |
730 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
731 | help |
732 | Make the page size 256k. | |
733 | ||
734 | As the ELF standard only requires alignment to support page | |
735 | sizes up to 64k, you will need to compile all of your user | |
736 | space applications with a non-standard binutils settings | |
737 | (see the STDBINUTILS description for details). | |
738 | ||
739 | Say N unless you know what you are doing. | |
740 | ||
ca9153a3 | 741 | endchoice |
3c726f8d | 742 | |
47613407 HM |
743 | config THREAD_SHIFT |
744 | int "Thread shift" if EXPERT | |
745 | range 13 15 | |
746 | default "15" if PPC_256K_PAGES | |
747 | default "14" if PPC64 | |
748 | default "13" | |
749 | help | |
750 | Used to define the stack size. The default is almost always what you | |
751 | want. Only change this if you know what you are doing. | |
752 | ||
53bcddb9 SR |
753 | config FORCE_MAX_ZONEORDER |
754 | int "Maximum zone order" | |
a7ee5395 | 755 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 756 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 757 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
758 | default "13" if PPC64 && !PPC_64K_PAGES |
759 | range 9 64 if PPC32 && PPC_16K_PAGES | |
760 | default "9" if PPC32 && PPC_16K_PAGES | |
761 | range 7 64 if PPC32 && PPC_64K_PAGES | |
762 | default "7" if PPC32 && PPC_64K_PAGES | |
763 | range 5 64 if PPC32 && PPC_256K_PAGES | |
764 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 765 | range 11 64 |
53bcddb9 SR |
766 | default "11" |
767 | help | |
768 | The kernel memory allocator divides physically contiguous memory | |
769 | blocks into "zones", where each zone is a power of two number of | |
770 | pages. This option selects the largest power of two that the kernel | |
771 | keeps in the memory allocator. If you need to allocate very large | |
772 | blocks of physically contiguous memory, then you may need to | |
773 | increase this value. | |
774 | ||
775 | This config option is actually maximum order plus one. For example, | |
776 | a value of 11 means that the largest free memory block is 2^10 pages. | |
777 | ||
778 | The page size is not necessarily 4KB. For example, on 64-bit | |
779 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
780 | this in mind when choosing a value for this option. | |
781 | ||
fa28237c PM |
782 | config PPC_SUBPAGE_PROT |
783 | bool "Support setting protections for 4k subpages" | |
4e003747 | 784 | depends on PPC_BOOK3S_64 && PPC_64K_PAGES |
fa28237c PM |
785 | help |
786 | This option adds support for a system call to allow user programs | |
787 | to set access permissions (read/write, readonly, or no access) | |
788 | on the 4k subpages of each 64k page. | |
789 | ||
e83d0169 IM |
790 | config PPC_COPRO_BASE |
791 | bool | |
792 | default n | |
793 | ||
14cf11af PM |
794 | config SCHED_SMT |
795 | bool "SMT (Hyperthreading) scheduler support" | |
796 | depends on PPC64 && SMP | |
14cf11af PM |
797 | help |
798 | SMT scheduler support improves the CPU scheduler's decision making | |
799 | when dealing with POWER5 cpus at a cost of slightly increased | |
800 | overhead in some places. If unsure say N here. | |
801 | ||
b92a66a6 MN |
802 | config PPC_DENORMALISATION |
803 | bool "PowerPC denormalisation exception handling" | |
804 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 805 | default "y" if PPC_POWERNV |
b92a66a6 MN |
806 | ---help--- |
807 | Add support for handling denormalisation of single precision | |
808 | values. Useful for bare metal only. If unsure say Y here. | |
809 | ||
14cf11af PM |
810 | config CMDLINE_BOOL |
811 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
812 | |
813 | config CMDLINE | |
814 | string "Initial kernel command string" | |
815 | depends on CMDLINE_BOOL | |
816 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
817 | help | |
818 | On some platforms, there is currently no way for the boot loader to | |
819 | pass arguments to the kernel. For these platforms, you can supply | |
820 | some command-line options at build time by entering them here. In | |
821 | most cases you will need to specify the root device here. | |
822 | ||
eb3b80f6 SS |
823 | config CMDLINE_FORCE |
824 | bool "Always use the default kernel command string" | |
825 | depends on CMDLINE_BOOL | |
826 | help | |
827 | Always use the default kernel command string, even if the boot | |
828 | loader passes other arguments to the kernel. | |
829 | This is useful if you cannot or don't want to change the | |
830 | command-line options your boot loader passes to the kernel. | |
831 | ||
c356aa45 GL |
832 | config EXTRA_TARGETS |
833 | string "Additional default image types" | |
834 | help | |
835 | List additional targets to be built by the bootwrapper here (separated | |
836 | by spaces). This is useful for targets that depend of device tree | |
837 | files in the .dts directory. | |
838 | ||
839 | Targets in this list will be build as part of the default build | |
840 | target, or when the user does a 'make zImage' or a | |
841 | 'make zImage.initrd'. | |
842 | ||
843 | If unsure, leave blank | |
844 | ||
b28f5081 JB |
845 | config ARCH_WANTS_FREEZER_CONTROL |
846 | def_bool y | |
847 | depends on ADB_PMU | |
848 | ||
14cf11af | 849 | source kernel/power/Kconfig |
14cf11af PM |
850 | |
851 | config SECCOMP | |
852 | bool "Enable seccomp to safely compute untrusted bytecode" | |
853 | depends on PROC_FS | |
854 | default y | |
855 | help | |
856 | This kernel feature is useful for number crunching applications | |
857 | that may need to compute untrusted bytecode during their | |
858 | execution. By using pipes or other transports made available to | |
859 | the process as file descriptors supporting the read/write | |
860 | syscalls, it's possible to isolate those applications in | |
861 | their own address space using seccomp. Once seccomp is | |
862 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
863 | and the task is only allowed to execute a few safe syscalls | |
864 | defined by each seccomp mode. | |
865 | ||
866 | If unsure, say Y. Only embedded should say N here. | |
867 | ||
868 | endmenu | |
869 | ||
870 | config ISA_DMA_API | |
871 | bool | |
3d066d77 | 872 | default PCI |
14cf11af PM |
873 | |
874 | menu "Bus options" | |
875 | ||
876 | config ISA | |
877 | bool "Support for ISA-bus hardware" | |
933ee711 | 878 | depends on PPC_CHRP |
f9bd170a | 879 | select PPC_I8259 |
14cf11af PM |
880 | help |
881 | Find out whether you have ISA slots on your motherboard. ISA is the | |
882 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
883 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
884 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
885 | embedded board, consult your board documentation. | |
14cf11af | 886 | |
5ac6da66 CL |
887 | config ZONE_DMA |
888 | bool | |
889 | default y | |
890 | ||
af407c6d FT |
891 | config NEED_DMA_MAP_STATE |
892 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
893 | ||
e32205eb FT |
894 | config NEED_SG_DMA_LENGTH |
895 | def_bool y | |
896 | ||
14cf11af PM |
897 | config GENERIC_ISA_DMA |
898 | bool | |
1927445a | 899 | depends on ISA_DMA_API |
14cf11af PM |
900 | default y |
901 | ||
25635c71 PM |
902 | config PPC_INDIRECT_PCI |
903 | bool | |
904 | depends on PCI | |
63dafe57 | 905 | default y if 40x || 44x |
25635c71 PM |
906 | default n |
907 | ||
14cf11af PM |
908 | config EISA |
909 | bool | |
910 | ||
911 | config SBUS | |
912 | bool | |
913 | ||
08264cbc KG |
914 | config FSL_SOC |
915 | bool | |
916 | ||
55c44991 RZ |
917 | config FSL_PCI |
918 | bool | |
919 | select PPC_INDIRECT_PCI | |
d0839118 | 920 | select PCI_QUIRKS |
55c44991 | 921 | |
4ffd6952 AV |
922 | config FSL_PMC |
923 | bool | |
924 | default y | |
925 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
926 | help | |
927 | Freescale MPC85xx/MPC86xx power management controller support | |
928 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
929 | ||
d164f6d4 VG |
930 | config PPC4xx_CPM |
931 | bool | |
932 | default y | |
933 | depends on SUSPEND && (44x || 40x) | |
934 | help | |
935 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
936 | It also enables support for two different idle states (idle-wait | |
937 | and idle-doze). | |
938 | ||
2a706919 SR |
939 | config 4xx_SOC |
940 | bool | |
941 | ||
acaa7aa3 | 942 | config FSL_LBC |
3ab8f2a2 | 943 | bool "Freescale Local Bus support" |
acaa7aa3 | 944 | help |
3ab8f2a2 RZ |
945 | Enables reporting of errors from the Freescale local bus |
946 | controller. Also contains some common code used by | |
947 | drivers for specific local bus peripherals. | |
acaa7aa3 | 948 | |
83ff9dcf AV |
949 | config FSL_GTM |
950 | bool | |
951 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
952 | help | |
953 | Freescale General-purpose Timers support | |
954 | ||
14cf11af PM |
955 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
956 | config MCA | |
957 | bool | |
958 | ||
b500563b JR |
959 | # Platforms that what PCI turned unconditionally just do select PCI |
960 | # in their config node. Platforms that want to choose at config | |
961 | # time should select PPC_PCI_CHOICE | |
962 | config PPC_PCI_CHOICE | |
963 | bool | |
964 | ||
14cf11af | 965 | config PCI |
b500563b | 966 | bool "PCI support" if PPC_PCI_CHOICE |
968159c0 | 967 | default y if !40x && !CPM2 && !PPC_8xx && !PPC_83xx \ |
bcc48591 | 968 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
e9599866 | 969 | default PCI_QSPAN if PPC_8xx |
335b8cf7 | 970 | select GENERIC_PCI_IOMAP |
14cf11af PM |
971 | help |
972 | Find out whether your system includes a PCI bus. PCI is the name of | |
973 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
974 | your box. If you say Y here, the kernel will include drivers and | |
975 | infrastructure code to support PCI bus devices. | |
976 | ||
977 | config PCI_DOMAINS | |
36e23590 MW |
978 | def_bool PCI |
979 | ||
980 | config PCI_SYSCALL | |
981 | def_bool PCI | |
14cf11af | 982 | |
14cf11af PM |
983 | config PCI_QSPAN |
984 | bool "QSpan PCI" | |
e9599866 | 985 | depends on PPC_8xx |
f9bd170a | 986 | select PPC_I8259 |
14cf11af PM |
987 | help |
988 | Say Y here if you have a system based on a Motorola 8xx-series | |
989 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
990 | ||
991 | config PCI_8260 | |
992 | bool | |
993 | depends on PCI && 8260 | |
25635c71 | 994 | select PPC_INDIRECT_PCI |
14cf11af PM |
995 | default y |
996 | ||
14cf11af PM |
997 | source "drivers/pci/Kconfig" |
998 | ||
999 | source "drivers/pcmcia/Kconfig" | |
1000 | ||
f1f389d5 ZW |
1001 | config HAS_RAPIDIO |
1002 | bool | |
1003 | default n | |
1004 | ||
1005 | config RAPIDIO | |
56abde72 | 1006 | tristate "RapidIO support" |
388b78ad | 1007 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
1008 | help |
1009 | If you say Y here, the kernel will include drivers and | |
1010 | infrastructure code to support RapidIO interconnect devices. | |
1011 | ||
388b78ad AB |
1012 | config FSL_RIO |
1013 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 1014 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
1015 | default "n" |
1016 | ---help--- | |
1017 | Include support for RapidIO controller on Freescale embedded | |
1018 | processors (MPC8548, MPC8641, etc). | |
1019 | ||
f1f389d5 ZW |
1020 | source "drivers/rapidio/Kconfig" |
1021 | ||
14cf11af PM |
1022 | endmenu |
1023 | ||
0f890c8d SP |
1024 | config NONSTATIC_KERNEL |
1025 | bool | |
1026 | default n | |
1027 | ||
14cf11af PM |
1028 | menu "Advanced setup" |
1029 | depends on PPC32 | |
1030 | ||
1031 | config ADVANCED_OPTIONS | |
1032 | bool "Prompt for advanced kernel configuration options" | |
1033 | help | |
1034 | This option will enable prompting for a variety of advanced kernel | |
1035 | configuration options. These options can cause the kernel to not | |
1036 | work if they are set incorrectly, but can be used to optimize certain | |
1037 | aspects of kernel memory management. | |
1038 | ||
1039 | Unless you know what you are doing, say N here. | |
1040 | ||
1041 | comment "Default settings for advanced configuration options are used" | |
1042 | depends on !ADVANCED_OPTIONS | |
1043 | ||
14cf11af PM |
1044 | config LOWMEM_SIZE_BOOL |
1045 | bool "Set maximum low memory" | |
1046 | depends on ADVANCED_OPTIONS | |
1047 | help | |
1048 | This option allows you to set the maximum amount of memory which | |
1049 | will be used as "low memory", that is, memory which the kernel can | |
1050 | access directly, without having to set up a kernel virtual mapping. | |
1051 | This can be useful in optimizing the layout of kernel virtual | |
1052 | memory. | |
1053 | ||
1054 | Say N here unless you know what you are doing. | |
1055 | ||
1056 | config LOWMEM_SIZE | |
1057 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1058 | default "0x30000000" | |
1059 | ||
96051465 TP |
1060 | config LOWMEM_CAM_NUM_BOOL |
1061 | bool "Set number of CAMs to use to map low memory" | |
1062 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
1063 | help | |
1064 | This option allows you to set the maximum number of CAM slots that | |
1065 | will be used to map low memory. There are a limited number of slots | |
1066 | available and even more limited number that will fit in the L1 MMU. | |
1067 | However, using more entries will allow mapping more low memory. This | |
1068 | can be useful in optimizing the layout of kernel virtual memory. | |
1069 | ||
1070 | Say N here unless you know what you are doing. | |
1071 | ||
1072 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 1073 | depends on FSL_BOOKE |
96051465 TP |
1074 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
1075 | default 3 | |
1076 | ||
0f890c8d | 1077 | config DYNAMIC_MEMSTART |
642e56ff KC |
1078 | bool "Enable page aligned dynamic load address for kernel" |
1079 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
1080 | select NONSTATIC_KERNEL |
1081 | help | |
1082 | This option enables the kernel to be loaded at any page aligned | |
1083 | physical address. The kernel creates a mapping from KERNELBASE to | |
1084 | the address where the kernel is loaded. The page size here implies | |
1085 | the TLB page size of the mapping for kernel on the particular platform. | |
1086 | Please refer to the init code for finding the TLB page size. | |
1087 | ||
1088 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1089 | kernel image, where the only restriction is the page aligned kernel | |
1090 | load address. When this option is enabled, the compile time physical | |
1091 | address CONFIG_PHYSICAL_START is ignored. | |
1092 | ||
9c5f7d39 SP |
1093 | This option is overridden by CONFIG_RELOCATABLE |
1094 | ||
37dd2bad KG |
1095 | config PAGE_OFFSET_BOOL |
1096 | bool "Set custom page offset address" | |
1097 | depends on ADVANCED_OPTIONS | |
1098 | help | |
1099 | This option allows you to set the kernel virtual address at which | |
1100 | the kernel will map low memory. This can be useful in optimizing | |
1101 | the virtual memory layout of the system. | |
1102 | ||
1103 | Say N here unless you know what you are doing. | |
1104 | ||
1105 | config PAGE_OFFSET | |
1106 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1107 | default "0xc0000000" | |
1108 | ||
14cf11af PM |
1109 | config KERNEL_START_BOOL |
1110 | bool "Set custom kernel base address" | |
1111 | depends on ADVANCED_OPTIONS | |
1112 | help | |
1113 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1114 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1115 | however there are times (like kdump) that one might not want them | |
1116 | to be the same. | |
14cf11af PM |
1117 | |
1118 | Say N here unless you know what you are doing. | |
1119 | ||
1120 | config KERNEL_START | |
1121 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1122 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1123 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1124 | default "0xc0000000" |
1125 | ||
37dd2bad KG |
1126 | config PHYSICAL_START_BOOL |
1127 | bool "Set physical address where the kernel is loaded" | |
1128 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1129 | help | |
1130 | This gives the physical address where the kernel is loaded. | |
1131 | ||
1132 | Say N here unless you know what you are doing. | |
1133 | ||
1134 | config PHYSICAL_START | |
1135 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1136 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1137 | default "0x00000000" |
1138 | ||
1139 | config PHYSICAL_ALIGN | |
1140 | hex | |
c8f3570b | 1141 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1142 | help |
1143 | This value puts the alignment restrictions on physical address | |
1144 | where kernel is loaded and run from. Kernel is compiled for an | |
1145 | address which meets above alignment restriction. | |
1146 | ||
14cf11af PM |
1147 | config TASK_SIZE_BOOL |
1148 | bool "Set custom user task size" | |
1149 | depends on ADVANCED_OPTIONS | |
1150 | help | |
1151 | This option allows you to set the amount of virtual address space | |
1152 | allocated to user tasks. This can be useful in optimizing the | |
1153 | virtual memory layout of the system. | |
1154 | ||
1155 | Say N here unless you know what you are doing. | |
1156 | ||
1157 | config TASK_SIZE | |
1158 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1159 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1160 | default "0xc0000000" |
14cf11af | 1161 | |
84532a0f BH |
1162 | config CONSISTENT_SIZE_BOOL |
1163 | bool "Set custom consistent memory pool size" | |
1164 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1165 | help | |
1166 | This option allows you to set the size of the | |
1167 | consistent memory pool. This pool of virtual memory | |
1168 | is used to make consistent memory allocations. | |
1169 | ||
1170 | config CONSISTENT_SIZE | |
1171 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1172 | default "0x00200000" if NOT_COHERENT_CACHE | |
1173 | ||
14cf11af PM |
1174 | config PIN_TLB |
1175 | bool "Pinned Kernel TLBs (860 ONLY)" | |
87be3e2d CL |
1176 | depends on ADVANCED_OPTIONS && PPC_8xx && \ |
1177 | !DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX | |
62f64b49 | 1178 | |
a3059b0c CL |
1179 | config PIN_TLB_DATA |
1180 | bool "Pinned TLB for DATA" | |
1181 | depends on PIN_TLB | |
1182 | default y | |
62f64b49 CL |
1183 | |
1184 | config PIN_TLB_IMMR | |
1185 | bool "Pinned TLB for IMMR" | |
1186 | depends on PIN_TLB | |
1187 | default y | |
a3059b0c CL |
1188 | |
1189 | config PIN_TLB_TEXT | |
1190 | bool "Pinned TLB for TEXT" | |
1191 | depends on PIN_TLB | |
1192 | default y | |
14cf11af PM |
1193 | endmenu |
1194 | ||
cabb5587 | 1195 | if PPC64 |
bdbc29c1 | 1196 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1197 | config PAGE_OFFSET |
1198 | hex | |
1199 | default "0xc000000000000000" | |
cabb5587 SR |
1200 | config KERNEL_START |
1201 | hex | |
eeb2d218 | 1202 | default "0xc000000000000000" |
37dd2bad KG |
1203 | config PHYSICAL_START |
1204 | hex | |
37dd2bad | 1205 | default "0x00000000" |
cabb5587 SR |
1206 | endif |
1207 | ||
a4da0d50 ME |
1208 | config ARCH_RANDOM |
1209 | def_bool n | |
1210 | ||
14cf11af PM |
1211 | source "net/Kconfig" |
1212 | ||
1213 | source "drivers/Kconfig" | |
1214 | ||
1215 | source "fs/Kconfig" | |
1216 | ||
14cf11af PM |
1217 | source "lib/Kconfig" |
1218 | ||
14cf11af PM |
1219 | source "arch/powerpc/Kconfig.debug" |
1220 | ||
1221 | source "security/Kconfig" | |
1222 | ||
14cf11af | 1223 | source "crypto/Kconfig" |
6f668280 | 1224 | |
1088a209 SM |
1225 | config PPC_LIB_RHEAP |
1226 | bool | |
1227 | ||
bbf45ba5 | 1228 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1229 | |
1230 | source "kernel/livepatch/Kconfig" |