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 ME |
140 | select ARCH_HAS_GCOV_PROFILE_ALL |
141 | select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE | |
142 | select ARCH_HAS_SG_CHAIN | |
143 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
144 | select ARCH_HAS_UBSAN_SANITIZE_ALL | |
c0742441 | 145 | select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 |
a7d2475a | 146 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
b7e7c37b | 147 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 148 | select ARCH_MIGHT_HAVE_PC_SERIO |
a7d2475a ME |
149 | select ARCH_SUPPORTS_ATOMIC_RMW |
150 | select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT | |
151 | select ARCH_USE_BUILTIN_BSWAP | |
152 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 | |
153 | select ARCH_WANT_IPC_PARSE_VERSION | |
77e58496 | 154 | select ARCH_WEAK_RELEASE_ACQUIRE |
d812c0e1 | 155 | select BINFMT_ELF |
a7d2475a ME |
156 | select BUILDTIME_EXTABLE_SORT |
157 | select CLONE_BACKWARDS | |
158 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN | |
159 | select EDAC_ATOMIC_SCRUB | |
160 | select EDAC_SUPPORT | |
161 | select GENERIC_ATOMIC64 if PPC32 | |
162 | select GENERIC_CLOCKEVENTS | |
163 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP | |
164 | select GENERIC_CMOS_UPDATE | |
165 | select GENERIC_CPU_AUTOPROBE | |
166 | select GENERIC_IRQ_SHOW | |
167 | select GENERIC_IRQ_SHOW_LEVEL | |
168 | select GENERIC_SMP_IDLE_THREAD | |
169 | select GENERIC_STRNCPY_FROM_USER | |
170 | select GENERIC_STRNLEN_USER | |
d4cfb113 | 171 | select GENERIC_TIME_VSYSCALL |
a7d2475a | 172 | select HAVE_ARCH_AUDITSYSCALL |
a7d2475a ME |
173 | select HAVE_ARCH_JUMP_LABEL |
174 | select HAVE_ARCH_KGDB | |
9fea59bd ME |
175 | select HAVE_ARCH_MMAP_RND_BITS |
176 | select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT | |
a7d2475a ME |
177 | select HAVE_ARCH_SECCOMP_FILTER |
178 | select HAVE_ARCH_TRACEHOOK | |
1e0fc9d1 BS |
179 | select ARCH_HAS_STRICT_KERNEL_RWX if (PPC_BOOK3S_64 && !RELOCATABLE && !HIBERNATION) |
180 | select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX | |
a7d2475a ME |
181 | select HAVE_CBPF_JIT if !PPC64 |
182 | select HAVE_CONTEXT_TRACKING if PPC64 | |
183 | select HAVE_DEBUG_KMEMLEAK | |
184 | select HAVE_DEBUG_STACKOVERFLOW | |
185 | select HAVE_DMA_API_DEBUG | |
2b79d696 | 186 | select HAVE_DYNAMIC_FTRACE |
a7d2475a ME |
187 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
188 | select HAVE_EBPF_JIT if PPC64 | |
189 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU) | |
190 | select HAVE_FTRACE_MCOUNT_RECORD | |
60ce8f72 | 191 | select HAVE_FUNCTION_GRAPH_TRACER |
a7d2475a | 192 | select HAVE_FUNCTION_TRACER |
65c059bc | 193 | select HAVE_GCC_PLUGINS |
e585513b | 194 | select HAVE_GENERIC_GUP |
a7d2475a | 195 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) |
ec7748b5 | 196 | select HAVE_IDE |
a1f242ff | 197 | select HAVE_IOREMAP_PROT |
a7d2475a ME |
198 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
199 | select HAVE_KERNEL_GZIP | |
3f550096 | 200 | select HAVE_KPROBES |
ead514d5 | 201 | select HAVE_KPROBES_ON_FTRACE |
9edddaa2 | 202 | select HAVE_KRETPROBES |
a7d2475a | 203 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
95f72d1e | 204 | select HAVE_MEMBLOCK |
1d7cfe18 | 205 | select HAVE_MEMBLOCK_NODE_MAP |
a7d2475a | 206 | select HAVE_MOD_ARCH_SPECIFIC |
2104180a NP |
207 | select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) |
208 | select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S) | |
4e491d14 | 209 | select HAVE_OPROFILE |
a7d2475a | 210 | select HAVE_OPTPROBES if PPC64 |
cdd6c482 | 211 | select HAVE_PERF_EVENTS |
a7d2475a | 212 | select HAVE_PERF_EVENTS_NMI if PPC64 |
2104180a | 213 | select HAVE_HARDLOCKUP_DETECTOR_PERF if HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH |
ed4a4ef8 | 214 | select HAVE_PERF_REGS |
17ed7c38 | 215 | select HAVE_PERF_USER_STACK_DUMP |
a7d2475a | 216 | select HAVE_RCU_TABLE_FREE if SMP |
359e4284 | 217 | select HAVE_REGS_AND_STACK_ACCESS_API |
a7d2475a ME |
218 | select HAVE_SYSCALL_TRACEPOINTS |
219 | select HAVE_VIRT_CPU_ACCOUNTING | |
518470fe | 220 | select HAVE_IRQ_TIME_ACCOUNTING |
cc79ca69 | 221 | select IRQ_DOMAIN |
e8d2c473 | 222 | select IRQ_FORCED_THREADING |
786d35d4 | 223 | select MODULES_USE_ELF_RELA |
10239733 | 224 | select NO_BOOTMEM |
a7d2475a ME |
225 | select OF |
226 | select OF_EARLY_FLATTREE | |
227 | select OF_RESERVED_MEM | |
228 | select OLD_SIGACTION if PPC32 | |
229 | select OLD_SIGSUSPEND | |
230 | select SPARSE_IRQ | |
231 | select SYSCTL_EXCEPTION_TRACE | |
232 | select VIRT_TO_BUS if !PPC64 | |
233 | # | |
234 | # Please keep this list sorted alphabetically. | |
235 | # | |
14cf11af | 236 | |
7a332b0c | 237 | config GENERIC_CSUM |
d4fde568 | 238 | def_bool n |
7a332b0c | 239 | |
14cf11af PM |
240 | config EARLY_PRINTK |
241 | bool | |
51d3082f | 242 | default y |
14cf11af | 243 | |
b71d47c1 JB |
244 | config PANIC_TIMEOUT |
245 | int | |
246 | default 180 | |
247 | ||
14cf11af PM |
248 | config COMPAT |
249 | bool | |
250 | default y if PPC64 | |
01e31dba | 251 | select COMPAT_BINFMT_ELF |
48b25c43 | 252 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 253 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
254 | |
255 | config SYSVIPC_COMPAT | |
256 | bool | |
257 | depends on COMPAT && SYSVIPC | |
258 | default y | |
259 | ||
260 | # All PPC32s use generic nvram driver through ppc_md | |
261 | config GENERIC_NVRAM | |
262 | bool | |
263 | default y if PPC32 | |
264 | ||
ae1e9130 | 265 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
266 | bool |
267 | default y | |
268 | ||
269 | config ARCH_MAY_HAVE_PC_FDC | |
270 | bool | |
3484a31f | 271 | default PCI |
14cf11af | 272 | |
08264cbc KG |
273 | config PPC_UDBG_16550 |
274 | bool | |
275 | default n | |
276 | ||
08264cbc KG |
277 | config GENERIC_TBSYNC |
278 | bool | |
279 | default y if PPC32 && SMP | |
280 | default n | |
281 | ||
e65e1fc2 AV |
282 | config AUDIT_ARCH |
283 | bool | |
284 | default y | |
285 | ||
73c9ceab JF |
286 | config GENERIC_BUG |
287 | bool | |
288 | default y | |
289 | depends on BUG | |
290 | ||
b3028878 | 291 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 292 | default y if PMAC_APM_EMU |
b3028878 JB |
293 | bool |
294 | ||
6c5b59b9 DG |
295 | config EPAPR_BOOT |
296 | bool | |
297 | help | |
298 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
299 | default n | |
300 | ||
f4fc4a5b KG |
301 | config DEFAULT_UIMAGE |
302 | bool | |
303 | help | |
304 | Used to allow a board to specify it wants a uImage built by default | |
305 | default n | |
306 | ||
801e4062 JB |
307 | config ARCH_HIBERNATION_POSSIBLE |
308 | bool | |
543b9fd3 JB |
309 | default y |
310 | ||
f4cb5700 JB |
311 | config ARCH_SUSPEND_POSSIBLE |
312 | def_bool y | |
4ffd6952 | 313 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
314 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
315 | || 44x || 40x | |
f4cb5700 | 316 | |
4c75a6f4 BH |
317 | config PPC_DCR_NATIVE |
318 | bool | |
319 | default n | |
320 | ||
321 | config PPC_DCR_MMIO | |
322 | bool | |
323 | default n | |
324 | ||
325 | config PPC_DCR | |
326 | bool | |
327 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
328 | default y | |
329 | ||
4c9d2800 BH |
330 | config PPC_OF_PLATFORM_PCI |
331 | bool | |
373a6da1 | 332 | depends on PCI |
4c9d2800 BH |
333 | depends on PPC64 # not supported on 32 bits yet |
334 | default n | |
335 | ||
6a11f75b | 336 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 337 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
338 | def_bool y |
339 | ||
8b7b80b9 AM |
340 | config ARCH_SUPPORTS_UPROBES |
341 | def_bool y | |
342 | ||
172ae2e7 DK |
343 | config PPC_ADV_DEBUG_REGS |
344 | bool | |
345 | depends on 40x || BOOKE | |
346 | default y | |
347 | ||
348 | config PPC_ADV_DEBUG_IACS | |
349 | int | |
350 | depends on PPC_ADV_DEBUG_REGS | |
351 | default 4 if 44x | |
352 | default 2 | |
353 | ||
354 | config PPC_ADV_DEBUG_DACS | |
355 | int | |
356 | depends on PPC_ADV_DEBUG_REGS | |
357 | default 2 | |
358 | ||
359 | config PPC_ADV_DEBUG_DVCS | |
360 | int | |
361 | depends on PPC_ADV_DEBUG_REGS | |
362 | default 2 if 44x | |
363 | default 0 | |
364 | ||
365 | config PPC_ADV_DEBUG_DAC_RANGE | |
366 | bool | |
367 | depends on PPC_ADV_DEBUG_REGS && 44x | |
368 | default y | |
369 | ||
5e249d45 SP |
370 | config PPC_EMULATE_SSTEP |
371 | bool | |
372 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
373 | ||
1c98025c SW |
374 | config ZONE_DMA32 |
375 | bool | |
376 | default y if PPC64 | |
377 | ||
06ef42a1 KS |
378 | config PGTABLE_LEVELS |
379 | int | |
380 | default 2 if !PPC64 | |
368ced78 | 381 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
382 | default 4 |
383 | ||
14cf11af PM |
384 | source "init/Kconfig" |
385 | ||
dc52ddc0 MH |
386 | source "kernel/Kconfig.freezer" |
387 | ||
a2d2e1ec | 388 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 389 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 390 | |
14cf11af PM |
391 | menu "Kernel options" |
392 | ||
393 | config HIGHMEM | |
394 | bool "High memory support" | |
395 | depends on PPC32 | |
396 | ||
397 | source kernel/Kconfig.hz | |
398 | source kernel/Kconfig.preempt | |
399 | source "fs/Kconfig.binfmt" | |
400 | ||
ba72cb8c MG |
401 | config HUGETLB_PAGE_SIZE_VARIABLE |
402 | bool | |
403 | depends on HUGETLB_PAGE | |
404 | default y | |
405 | ||
14cf11af PM |
406 | config MATH_EMULATION |
407 | bool "Math emulation" | |
4e63f8ed | 408 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
409 | ---help--- |
410 | Some PowerPC chips designed for embedded applications do not have | |
411 | a floating-point unit and therefore do not implement the | |
412 | floating-point instructions in the PowerPC instruction set. If you | |
413 | say Y here, the kernel will include code to emulate a floating-point | |
414 | unit, which will allow programs that use floating-point | |
415 | instructions to run. | |
416 | ||
4e63f8ed BH |
417 | This is also useful to emulate missing (optional) instructions |
418 | such as fsqrt on cores that do have an FPU but do not implement | |
419 | them (such as Freescale BookE). | |
420 | ||
e05c0e81 KH |
421 | choice |
422 | prompt "Math emulation options" | |
423 | default MATH_EMULATION_FULL | |
424 | depends on MATH_EMULATION | |
425 | ||
426 | config MATH_EMULATION_FULL | |
427 | bool "Emulate all the floating point instructions" | |
428 | ---help--- | |
429 | Select this option will enable the kernel to support to emulate | |
430 | all the floating point instructions. If your SoC doesn't have | |
431 | a FPU, you should select this. | |
432 | ||
433 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
434 | bool "Just emulate the FPU unimplemented instructions" | |
435 | ---help--- | |
436 | Select this if you know there does have a hardware FPU on your | |
437 | SoC, but some floating point instructions are not implemented by that. | |
438 | ||
439 | endchoice | |
440 | ||
3d72bbc4 MN |
441 | config PPC_TRANSACTIONAL_MEM |
442 | bool "Transactional Memory support for POWERPC" | |
443 | depends on PPC_BOOK3S_64 | |
444 | depends on SMP | |
7b37a123 MN |
445 | select ALTIVEC |
446 | select VSX | |
3d72bbc4 MN |
447 | default n |
448 | ---help--- | |
449 | Support user-mode Transactional Memory on POWERPC. | |
450 | ||
951eedeb NP |
451 | config LD_HEAD_STUB_CATCH |
452 | bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT | |
453 | depends on PPC64 | |
454 | default n | |
455 | help | |
456 | Very large kernels can cause linker branch stubs to be generated by | |
457 | code in head_64.S, which moves the head text sections out of their | |
458 | specified location. This option can work around the problem. | |
459 | ||
460 | If unsure, say "N". | |
461 | ||
8c50b72a TD |
462 | config DISABLE_MPROFILE_KERNEL |
463 | bool "Disable use of mprofile-kernel for kernel tracing" | |
464 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
465 | default y | |
466 | help | |
467 | Selecting this options disables use of the mprofile-kernel ABI for | |
468 | kernel tracing. That will cause options such as live patching | |
469 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
470 | be disabled also. | |
471 | ||
472 | If you have a toolchain which supports mprofile-kernel, then you can | |
496e9cb5 AB |
473 | disable this. Otherwise leave it enabled. If you're not sure, say |
474 | "Y". | |
8c50b72a TD |
475 | |
476 | config MPROFILE_KERNEL | |
477 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
478 | def_bool !DISABLE_MPROFILE_KERNEL | |
479 | ||
fb3475e9 FT |
480 | config IOMMU_HELPER |
481 | def_bool PPC64 | |
482 | ||
ec3cf2ec BB |
483 | config SWIOTLB |
484 | bool "SWIOTLB support" | |
485 | default n | |
486 | select IOMMU_HELPER | |
487 | ---help--- | |
488 | Support for IO bounce buffering for systems without an IOMMU. | |
489 | This allows us to DMA to the full physical address space on | |
490 | platforms where the size of a physical address is larger | |
491 | than the bus address. Not all platforms support this. | |
492 | ||
14cf11af PM |
493 | config HOTPLUG_CPU |
494 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 495 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 496 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
497 | ---help--- |
498 | Say Y here to be able to disable and re-enable individual | |
499 | CPUs at runtime on SMP machines. | |
500 | ||
501 | Say N if you are unsure. | |
502 | ||
12633e80 NF |
503 | config ARCH_CPU_PROBE_RELEASE |
504 | def_bool y | |
505 | depends on HOTPLUG_CPU | |
506 | ||
cc57637b YG |
507 | config ARCH_ENABLE_MEMORY_HOTPLUG |
508 | def_bool y | |
509 | ||
a99824f3 BP |
510 | config ARCH_HAS_WALK_MEMORY |
511 | def_bool y | |
512 | ||
1482471d BP |
513 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
514 | def_bool y | |
515 | ||
f2296a3d MS |
516 | config PPC64_SUPPORTS_MEMORY_FAILURE |
517 | bool "Add support for memory hwpoison" | |
518 | depends on PPC_BOOK3S_64 | |
519 | default "y" if PPC_POWERNV | |
520 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
521 | ||
14cf11af | 522 | config KEXEC |
642e56ff | 523 | bool "kexec system call" |
96eea642 | 524 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 525 | select KEXEC_CORE |
14cf11af PM |
526 | help |
527 | kexec is a system call that implements the ability to shutdown your | |
528 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 529 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
530 | you can start any kernel with it, not just Linux. |
531 | ||
1f1332f7 | 532 | The name comes from the similarity to the exec system call. |
14cf11af PM |
533 | |
534 | It is an ongoing process to be certain the hardware in a machine | |
535 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
536 | initially work for you. As of this writing the exact hardware |
537 | interface is strongly in flux, so no good recommendation can be | |
538 | made. | |
14cf11af | 539 | |
80f60e50 TJB |
540 | config KEXEC_FILE |
541 | bool "kexec file based system call" | |
542 | select KEXEC_CORE | |
467d2782 | 543 | select HAVE_IMA_KEXEC |
80f60e50 TJB |
544 | select BUILD_BIN2C |
545 | depends on PPC64 | |
546 | depends on CRYPTO=y | |
547 | depends on CRYPTO_SHA256=y | |
548 | help | |
549 | This is a new version of the kexec system call. This call is | |
550 | file based and takes in file descriptors as system call arguments | |
551 | for kernel and initramfs as opposed to a list of segments as is the | |
552 | case for the older kexec call. | |
553 | ||
4c91bd6e KH |
554 | config RELOCATABLE |
555 | bool "Build a relocatable kernel" | |
084a275e | 556 | depends on PPC64 || (FLATMEM && (44x || FSL_BOOKE)) |
4c91bd6e | 557 | select NONSTATIC_KERNEL |
71810db2 | 558 | select MODULE_REL_CRCS if MODVERSIONS |
4c91bd6e KH |
559 | help |
560 | This builds a kernel image that is capable of running at the | |
561 | location the kernel is loaded at. For ppc32, there is no any | |
562 | alignment restrictions, and this feature is a superset of | |
563 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
564 | 16k-aligned base address. The kernel is linked as a | |
565 | position-independent executable (PIE) and contains dynamic relocations | |
566 | which are processed early in the bootup process. | |
567 | ||
568 | One use is for the kexec on panic case where the recovery kernel | |
569 | must live at a different physical address than the primary | |
570 | kernel. | |
571 | ||
572 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
573 | it has been loaded at and the compile time physical addresses | |
574 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
575 | setting can still be useful to bootwrappers that need to know the | |
576 | load address of the kernel (eg. u-boot/mkimage). | |
577 | ||
70839d20 NP |
578 | config RELOCATABLE_TEST |
579 | bool "Test relocatable kernel" | |
580 | depends on (PPC64 && RELOCATABLE) | |
581 | default n | |
582 | help | |
583 | This runs the relocatable kernel at the address it was initially | |
584 | loaded at, which tends to be non-zero and therefore test the | |
585 | relocation code. | |
586 | ||
e8625d46 | 587 | config CRASH_DUMP |
22bd0177 | 588 | bool "Build a dump capture kernel" |
47da4219 | 589 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
084a275e | 590 | select RELOCATABLE if PPC64 || 44x || FSL_BOOKE |
e8625d46 | 591 | help |
22bd0177 | 592 | Build a kernel suitable for use as a dump capture kernel. |
54622f10 MK |
593 | The same kernel binary can be used as production kernel and dump |
594 | capture kernel. | |
e8625d46 | 595 | |
eb39c880 MS |
596 | config FA_DUMP |
597 | bool "Firmware-assisted dump" | |
22bd0177 HB |
598 | depends on PPC64 && PPC_RTAS |
599 | select CRASH_CORE | |
600 | select CRASH_DUMP | |
242f271c | 601 | help |
eb39c880 MS |
602 | A robust mechanism to get reliable kernel crash dump with |
603 | assistance from firmware. This approach does not use kexec, | |
22bd0177 | 604 | instead firmware assists in booting the capture kernel |
eb39c880 MS |
605 | while preserving memory contents. Firmware-assisted dump |
606 | is meant to be a kdump replacement offering robustness and | |
607 | speed not possible without system firmware assistance. | |
242f271c MA |
608 | |
609 | If unsure, say "N" | |
610 | ||
14cf11af PM |
611 | config IRQ_ALL_CPUS |
612 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 613 | depends on SMP |
14cf11af PM |
614 | help |
615 | This option gives the kernel permission to distribute IRQs across | |
616 | multiple CPUs. Saying N here will route all IRQs to the first | |
617 | CPU. Generally saying Y is safe, although some problems have been | |
618 | reported with SMP Power Macintoshes with this option enabled. | |
619 | ||
ffa27b6b AW |
620 | config NUMA |
621 | bool "NUMA support" | |
622 | depends on PPC64 | |
623 | default y if SMP && PPC_PSERIES | |
624 | ||
c80d79d7 YG |
625 | config NODES_SHIFT |
626 | int | |
ea55bf29 | 627 | default "8" if PPC64 |
c80d79d7 YG |
628 | default "4" |
629 | depends on NEED_MULTIPLE_NODES | |
630 | ||
8c272261 NA |
631 | config USE_PERCPU_NUMA_NODE_ID |
632 | def_bool y | |
633 | depends on NUMA | |
634 | ||
64bb80d8 NA |
635 | config HAVE_MEMORYLESS_NODES |
636 | def_bool y | |
637 | depends on NUMA | |
638 | ||
14cf11af PM |
639 | config ARCH_SELECT_MEMORY_MODEL |
640 | def_bool y | |
641 | depends on PPC64 | |
642 | ||
643 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
644 | def_bool y |
645 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 646 | |
45fb6cea | 647 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 648 | def_bool y |
9100b205 | 649 | depends on PPC64 |
d29eff7b | 650 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 651 | |
45fb6cea | 652 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 653 | def_bool y |
7b3912f4 | 654 | depends on PPC_BOOK3S_64 |
14cf11af | 655 | |
5a1eb5c4 | 656 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 657 | bool |
5a1eb5c4 | 658 | |
f6853eb5 ME |
659 | config ILLEGAL_POINTER_VALUE |
660 | hex | |
661 | # This is roughly half way between the top of user space and the bottom | |
662 | # of kernel space, which seems about as good as we can get. | |
663 | default 0x5deadbeef0000000 if PPC64 | |
664 | default 0 | |
665 | ||
c67c3cb4 | 666 | source "mm/Kconfig" |
14cf11af | 667 | |
7e9191da MK |
668 | config ARCH_MEMORY_PROBE |
669 | def_bool y | |
670 | depends on MEMORY_HOTPLUG | |
671 | ||
75167957 AW |
672 | # Some NUMA nodes have memory ranges that span |
673 | # other nodes. Even though a pfn is valid and | |
674 | # between a node's start and end pfns, it may not | |
675 | # reside on that node. See memmap_init_zone() | |
676 | # for details. | |
677 | config NODES_SPAN_OTHER_NODES | |
678 | def_bool y | |
679 | depends on NEED_MULTIPLE_NODES | |
680 | ||
e1240122 YT |
681 | config STDBINUTILS |
682 | bool "Using standard binutils settings" | |
683 | depends on 44x | |
684 | default y | |
685 | help | |
686 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
687 | Note, that kernel will be able to run only those applications, | |
688 | which had been compiled using binutils later than 2.17.50.0.3 with | |
689 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
690 | the older binutils, you can patch them with a trivial patch, which | |
691 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
692 | ||
ca9153a3 IY |
693 | choice |
694 | prompt "Page size" | |
695 | default PPC_4K_PAGES | |
3c726f8d | 696 | help |
ca9153a3 IY |
697 | Select the kernel logical page size. Increasing the page size |
698 | will reduce software overhead at each page boundary, allow | |
699 | hardware prefetch mechanisms to be more effective, and allow | |
700 | larger dma transfers increasing IO efficiency and reducing | |
701 | overhead. However the utilization of memory will increase. | |
702 | For example, each cached file will using a multiple of the | |
703 | page size to hold its contents and the difference between the | |
704 | end of file and the end of page is wasted. | |
705 | ||
706 | Some dedicated systems, such as software raid serving with | |
707 | accelerated calculations, have shown significant increases. | |
708 | ||
709 | If you configure a 64 bit kernel for 64k pages but the | |
710 | processor does not support them, then the kernel will simulate | |
711 | them with 4k pages, loading them on demand, but with the | |
712 | reduced software overhead and larger internal fragmentation. | |
713 | For the 32 bit kernel, a large page option will not be offered | |
714 | unless it is supported by the configured processor. | |
715 | ||
716 | If unsure, choose 4K_PAGES. | |
717 | ||
718 | config PPC_4K_PAGES | |
719 | bool "4k page size" | |
19f97c98 | 720 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
721 | |
722 | config PPC_16K_PAGES | |
55f8b5b8 ME |
723 | bool "16k page size" |
724 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
725 | |
726 | config PPC_64K_PAGES | |
55f8b5b8 ME |
727 | bool "64k page size" |
728 | depends on !PPC_FSL_BOOK3E && (44x || PPC_STD_MMU_64 || PPC_BOOK3E_64) | |
19f97c98 | 729 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 730 | |
e1240122 | 731 | config PPC_256K_PAGES |
55f8b5b8 ME |
732 | bool "256k page size" |
733 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
734 | help |
735 | Make the page size 256k. | |
736 | ||
737 | As the ELF standard only requires alignment to support page | |
738 | sizes up to 64k, you will need to compile all of your user | |
739 | space applications with a non-standard binutils settings | |
740 | (see the STDBINUTILS description for details). | |
741 | ||
742 | Say N unless you know what you are doing. | |
743 | ||
ca9153a3 | 744 | endchoice |
3c726f8d | 745 | |
47613407 HM |
746 | config THREAD_SHIFT |
747 | int "Thread shift" if EXPERT | |
748 | range 13 15 | |
749 | default "15" if PPC_256K_PAGES | |
750 | default "14" if PPC64 | |
751 | default "13" | |
752 | help | |
753 | Used to define the stack size. The default is almost always what you | |
754 | want. Only change this if you know what you are doing. | |
755 | ||
53bcddb9 SR |
756 | config FORCE_MAX_ZONEORDER |
757 | int "Maximum zone order" | |
a7ee5395 | 758 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 759 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 760 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
761 | default "13" if PPC64 && !PPC_64K_PAGES |
762 | range 9 64 if PPC32 && PPC_16K_PAGES | |
763 | default "9" if PPC32 && PPC_16K_PAGES | |
764 | range 7 64 if PPC32 && PPC_64K_PAGES | |
765 | default "7" if PPC32 && PPC_64K_PAGES | |
766 | range 5 64 if PPC32 && PPC_256K_PAGES | |
767 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 768 | range 11 64 |
53bcddb9 SR |
769 | default "11" |
770 | help | |
771 | The kernel memory allocator divides physically contiguous memory | |
772 | blocks into "zones", where each zone is a power of two number of | |
773 | pages. This option selects the largest power of two that the kernel | |
774 | keeps in the memory allocator. If you need to allocate very large | |
775 | blocks of physically contiguous memory, then you may need to | |
776 | increase this value. | |
777 | ||
778 | This config option is actually maximum order plus one. For example, | |
779 | a value of 11 means that the largest free memory block is 2^10 pages. | |
780 | ||
781 | The page size is not necessarily 4KB. For example, on 64-bit | |
782 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
783 | this in mind when choosing a value for this option. | |
784 | ||
fa28237c PM |
785 | config PPC_SUBPAGE_PROT |
786 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 787 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
788 | help |
789 | This option adds support for a system call to allow user programs | |
790 | to set access permissions (read/write, readonly, or no access) | |
791 | on the 4k subpages of each 64k page. | |
792 | ||
e83d0169 IM |
793 | config PPC_COPRO_BASE |
794 | bool | |
795 | default n | |
796 | ||
14cf11af PM |
797 | config SCHED_SMT |
798 | bool "SMT (Hyperthreading) scheduler support" | |
799 | depends on PPC64 && SMP | |
14cf11af PM |
800 | help |
801 | SMT scheduler support improves the CPU scheduler's decision making | |
802 | when dealing with POWER5 cpus at a cost of slightly increased | |
803 | overhead in some places. If unsure say N here. | |
804 | ||
b92a66a6 MN |
805 | config PPC_DENORMALISATION |
806 | bool "PowerPC denormalisation exception handling" | |
807 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 808 | default "y" if PPC_POWERNV |
b92a66a6 MN |
809 | ---help--- |
810 | Add support for handling denormalisation of single precision | |
811 | values. Useful for bare metal only. If unsure say Y here. | |
812 | ||
14cf11af PM |
813 | config CMDLINE_BOOL |
814 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
815 | |
816 | config CMDLINE | |
817 | string "Initial kernel command string" | |
818 | depends on CMDLINE_BOOL | |
819 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
820 | help | |
821 | On some platforms, there is currently no way for the boot loader to | |
822 | pass arguments to the kernel. For these platforms, you can supply | |
823 | some command-line options at build time by entering them here. In | |
824 | most cases you will need to specify the root device here. | |
825 | ||
eb3b80f6 SS |
826 | config CMDLINE_FORCE |
827 | bool "Always use the default kernel command string" | |
828 | depends on CMDLINE_BOOL | |
829 | help | |
830 | Always use the default kernel command string, even if the boot | |
831 | loader passes other arguments to the kernel. | |
832 | This is useful if you cannot or don't want to change the | |
833 | command-line options your boot loader passes to the kernel. | |
834 | ||
c356aa45 GL |
835 | config EXTRA_TARGETS |
836 | string "Additional default image types" | |
837 | help | |
838 | List additional targets to be built by the bootwrapper here (separated | |
839 | by spaces). This is useful for targets that depend of device tree | |
840 | files in the .dts directory. | |
841 | ||
842 | Targets in this list will be build as part of the default build | |
843 | target, or when the user does a 'make zImage' or a | |
844 | 'make zImage.initrd'. | |
845 | ||
846 | If unsure, leave blank | |
847 | ||
b28f5081 JB |
848 | config ARCH_WANTS_FREEZER_CONTROL |
849 | def_bool y | |
850 | depends on ADB_PMU | |
851 | ||
14cf11af | 852 | source kernel/power/Kconfig |
14cf11af PM |
853 | |
854 | config SECCOMP | |
855 | bool "Enable seccomp to safely compute untrusted bytecode" | |
856 | depends on PROC_FS | |
857 | default y | |
858 | help | |
859 | This kernel feature is useful for number crunching applications | |
860 | that may need to compute untrusted bytecode during their | |
861 | execution. By using pipes or other transports made available to | |
862 | the process as file descriptors supporting the read/write | |
863 | syscalls, it's possible to isolate those applications in | |
864 | their own address space using seccomp. Once seccomp is | |
865 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
866 | and the task is only allowed to execute a few safe syscalls | |
867 | defined by each seccomp mode. | |
868 | ||
869 | If unsure, say Y. Only embedded should say N here. | |
870 | ||
871 | endmenu | |
872 | ||
873 | config ISA_DMA_API | |
874 | bool | |
3d066d77 | 875 | default PCI |
14cf11af PM |
876 | |
877 | menu "Bus options" | |
878 | ||
879 | config ISA | |
880 | bool "Support for ISA-bus hardware" | |
933ee711 | 881 | depends on PPC_CHRP |
f9bd170a | 882 | select PPC_I8259 |
14cf11af PM |
883 | help |
884 | Find out whether you have ISA slots on your motherboard. ISA is the | |
885 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
886 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
887 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
888 | embedded board, consult your board documentation. | |
14cf11af | 889 | |
5ac6da66 CL |
890 | config ZONE_DMA |
891 | bool | |
892 | default y | |
893 | ||
af407c6d FT |
894 | config NEED_DMA_MAP_STATE |
895 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
896 | ||
e32205eb FT |
897 | config NEED_SG_DMA_LENGTH |
898 | def_bool y | |
899 | ||
14cf11af PM |
900 | config GENERIC_ISA_DMA |
901 | bool | |
1927445a | 902 | depends on ISA_DMA_API |
14cf11af PM |
903 | default y |
904 | ||
25635c71 PM |
905 | config PPC_INDIRECT_PCI |
906 | bool | |
907 | depends on PCI | |
63dafe57 | 908 | default y if 40x || 44x |
25635c71 PM |
909 | default n |
910 | ||
14cf11af PM |
911 | config EISA |
912 | bool | |
913 | ||
914 | config SBUS | |
915 | bool | |
916 | ||
08264cbc KG |
917 | config FSL_SOC |
918 | bool | |
919 | ||
55c44991 RZ |
920 | config FSL_PCI |
921 | bool | |
922 | select PPC_INDIRECT_PCI | |
d0839118 | 923 | select PCI_QUIRKS |
55c44991 | 924 | |
4ffd6952 AV |
925 | config FSL_PMC |
926 | bool | |
927 | default y | |
928 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
929 | help | |
930 | Freescale MPC85xx/MPC86xx power management controller support | |
931 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
932 | ||
d164f6d4 VG |
933 | config PPC4xx_CPM |
934 | bool | |
935 | default y | |
936 | depends on SUSPEND && (44x || 40x) | |
937 | help | |
938 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
939 | It also enables support for two different idle states (idle-wait | |
940 | and idle-doze). | |
941 | ||
2a706919 SR |
942 | config 4xx_SOC |
943 | bool | |
944 | ||
acaa7aa3 | 945 | config FSL_LBC |
3ab8f2a2 | 946 | bool "Freescale Local Bus support" |
acaa7aa3 | 947 | help |
3ab8f2a2 RZ |
948 | Enables reporting of errors from the Freescale local bus |
949 | controller. Also contains some common code used by | |
950 | drivers for specific local bus peripherals. | |
acaa7aa3 | 951 | |
83ff9dcf AV |
952 | config FSL_GTM |
953 | bool | |
954 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
955 | help | |
956 | Freescale General-purpose Timers support | |
957 | ||
14cf11af PM |
958 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
959 | config MCA | |
960 | bool | |
961 | ||
b500563b JR |
962 | # Platforms that what PCI turned unconditionally just do select PCI |
963 | # in their config node. Platforms that want to choose at config | |
964 | # time should select PPC_PCI_CHOICE | |
965 | config PPC_PCI_CHOICE | |
966 | bool | |
967 | ||
14cf11af | 968 | config PCI |
b500563b JR |
969 | bool "PCI support" if PPC_PCI_CHOICE |
970 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 971 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 972 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 973 | select GENERIC_PCI_IOMAP |
14cf11af PM |
974 | help |
975 | Find out whether your system includes a PCI bus. PCI is the name of | |
976 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
977 | your box. If you say Y here, the kernel will include drivers and | |
978 | infrastructure code to support PCI bus devices. | |
979 | ||
980 | config PCI_DOMAINS | |
36e23590 MW |
981 | def_bool PCI |
982 | ||
983 | config PCI_SYSCALL | |
984 | def_bool PCI | |
14cf11af | 985 | |
14cf11af PM |
986 | config PCI_QSPAN |
987 | bool "QSpan PCI" | |
988 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 989 | select PPC_I8259 |
14cf11af PM |
990 | help |
991 | Say Y here if you have a system based on a Motorola 8xx-series | |
992 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
993 | ||
994 | config PCI_8260 | |
995 | bool | |
996 | depends on PCI && 8260 | |
25635c71 | 997 | select PPC_INDIRECT_PCI |
14cf11af PM |
998 | default y |
999 | ||
14cf11af PM |
1000 | source "drivers/pci/Kconfig" |
1001 | ||
1002 | source "drivers/pcmcia/Kconfig" | |
1003 | ||
f1f389d5 ZW |
1004 | config HAS_RAPIDIO |
1005 | bool | |
1006 | default n | |
1007 | ||
1008 | config RAPIDIO | |
56abde72 | 1009 | tristate "RapidIO support" |
388b78ad | 1010 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
1011 | help |
1012 | If you say Y here, the kernel will include drivers and | |
1013 | infrastructure code to support RapidIO interconnect devices. | |
1014 | ||
388b78ad AB |
1015 | config FSL_RIO |
1016 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 1017 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
1018 | default "n" |
1019 | ---help--- | |
1020 | Include support for RapidIO controller on Freescale embedded | |
1021 | processors (MPC8548, MPC8641, etc). | |
1022 | ||
f1f389d5 ZW |
1023 | source "drivers/rapidio/Kconfig" |
1024 | ||
14cf11af PM |
1025 | endmenu |
1026 | ||
0f890c8d SP |
1027 | config NONSTATIC_KERNEL |
1028 | bool | |
1029 | default n | |
1030 | ||
14cf11af PM |
1031 | menu "Advanced setup" |
1032 | depends on PPC32 | |
1033 | ||
1034 | config ADVANCED_OPTIONS | |
1035 | bool "Prompt for advanced kernel configuration options" | |
1036 | help | |
1037 | This option will enable prompting for a variety of advanced kernel | |
1038 | configuration options. These options can cause the kernel to not | |
1039 | work if they are set incorrectly, but can be used to optimize certain | |
1040 | aspects of kernel memory management. | |
1041 | ||
1042 | Unless you know what you are doing, say N here. | |
1043 | ||
1044 | comment "Default settings for advanced configuration options are used" | |
1045 | depends on !ADVANCED_OPTIONS | |
1046 | ||
14cf11af PM |
1047 | config LOWMEM_SIZE_BOOL |
1048 | bool "Set maximum low memory" | |
1049 | depends on ADVANCED_OPTIONS | |
1050 | help | |
1051 | This option allows you to set the maximum amount of memory which | |
1052 | will be used as "low memory", that is, memory which the kernel can | |
1053 | access directly, without having to set up a kernel virtual mapping. | |
1054 | This can be useful in optimizing the layout of kernel virtual | |
1055 | memory. | |
1056 | ||
1057 | Say N here unless you know what you are doing. | |
1058 | ||
1059 | config LOWMEM_SIZE | |
1060 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1061 | default "0x30000000" | |
1062 | ||
96051465 TP |
1063 | config LOWMEM_CAM_NUM_BOOL |
1064 | bool "Set number of CAMs to use to map low memory" | |
1065 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
1066 | help | |
1067 | This option allows you to set the maximum number of CAM slots that | |
1068 | will be used to map low memory. There are a limited number of slots | |
1069 | available and even more limited number that will fit in the L1 MMU. | |
1070 | However, using more entries will allow mapping more low memory. This | |
1071 | can be useful in optimizing the layout of kernel virtual memory. | |
1072 | ||
1073 | Say N here unless you know what you are doing. | |
1074 | ||
1075 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 1076 | depends on FSL_BOOKE |
96051465 TP |
1077 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
1078 | default 3 | |
1079 | ||
0f890c8d | 1080 | config DYNAMIC_MEMSTART |
642e56ff KC |
1081 | bool "Enable page aligned dynamic load address for kernel" |
1082 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
1083 | select NONSTATIC_KERNEL |
1084 | help | |
1085 | This option enables the kernel to be loaded at any page aligned | |
1086 | physical address. The kernel creates a mapping from KERNELBASE to | |
1087 | the address where the kernel is loaded. The page size here implies | |
1088 | the TLB page size of the mapping for kernel on the particular platform. | |
1089 | Please refer to the init code for finding the TLB page size. | |
1090 | ||
1091 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1092 | kernel image, where the only restriction is the page aligned kernel | |
1093 | load address. When this option is enabled, the compile time physical | |
1094 | address CONFIG_PHYSICAL_START is ignored. | |
1095 | ||
9c5f7d39 SP |
1096 | This option is overridden by CONFIG_RELOCATABLE |
1097 | ||
37dd2bad KG |
1098 | config PAGE_OFFSET_BOOL |
1099 | bool "Set custom page offset address" | |
1100 | depends on ADVANCED_OPTIONS | |
1101 | help | |
1102 | This option allows you to set the kernel virtual address at which | |
1103 | the kernel will map low memory. This can be useful in optimizing | |
1104 | the virtual memory layout of the system. | |
1105 | ||
1106 | Say N here unless you know what you are doing. | |
1107 | ||
1108 | config PAGE_OFFSET | |
1109 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1110 | default "0xc0000000" | |
1111 | ||
14cf11af PM |
1112 | config KERNEL_START_BOOL |
1113 | bool "Set custom kernel base address" | |
1114 | depends on ADVANCED_OPTIONS | |
1115 | help | |
1116 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1117 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1118 | however there are times (like kdump) that one might not want them | |
1119 | to be the same. | |
14cf11af PM |
1120 | |
1121 | Say N here unless you know what you are doing. | |
1122 | ||
1123 | config KERNEL_START | |
1124 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1125 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1126 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1127 | default "0xc0000000" |
1128 | ||
37dd2bad KG |
1129 | config PHYSICAL_START_BOOL |
1130 | bool "Set physical address where the kernel is loaded" | |
1131 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1132 | help | |
1133 | This gives the physical address where the kernel is loaded. | |
1134 | ||
1135 | Say N here unless you know what you are doing. | |
1136 | ||
1137 | config PHYSICAL_START | |
1138 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1139 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1140 | default "0x00000000" |
1141 | ||
1142 | config PHYSICAL_ALIGN | |
1143 | hex | |
c8f3570b | 1144 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1145 | help |
1146 | This value puts the alignment restrictions on physical address | |
1147 | where kernel is loaded and run from. Kernel is compiled for an | |
1148 | address which meets above alignment restriction. | |
1149 | ||
14cf11af PM |
1150 | config TASK_SIZE_BOOL |
1151 | bool "Set custom user task size" | |
1152 | depends on ADVANCED_OPTIONS | |
1153 | help | |
1154 | This option allows you to set the amount of virtual address space | |
1155 | allocated to user tasks. This can be useful in optimizing the | |
1156 | virtual memory layout of the system. | |
1157 | ||
1158 | Say N here unless you know what you are doing. | |
1159 | ||
1160 | config TASK_SIZE | |
1161 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1162 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1163 | default "0xc0000000" |
14cf11af | 1164 | |
84532a0f BH |
1165 | config CONSISTENT_SIZE_BOOL |
1166 | bool "Set custom consistent memory pool size" | |
1167 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1168 | help | |
1169 | This option allows you to set the size of the | |
1170 | consistent memory pool. This pool of virtual memory | |
1171 | is used to make consistent memory allocations. | |
1172 | ||
1173 | config CONSISTENT_SIZE | |
1174 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1175 | default "0x00200000" if NOT_COHERENT_CACHE | |
1176 | ||
14cf11af PM |
1177 | config PIN_TLB |
1178 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1179 | depends on ADVANCED_OPTIONS && 8xx | |
62f64b49 CL |
1180 | |
1181 | config PIN_TLB_IMMR | |
1182 | bool "Pinned TLB for IMMR" | |
1183 | depends on PIN_TLB | |
1184 | default y | |
14cf11af PM |
1185 | endmenu |
1186 | ||
cabb5587 | 1187 | if PPC64 |
bdbc29c1 | 1188 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1189 | config PAGE_OFFSET |
1190 | hex | |
1191 | default "0xc000000000000000" | |
cabb5587 SR |
1192 | config KERNEL_START |
1193 | hex | |
eeb2d218 | 1194 | default "0xc000000000000000" |
37dd2bad KG |
1195 | config PHYSICAL_START |
1196 | hex | |
37dd2bad | 1197 | default "0x00000000" |
cabb5587 SR |
1198 | endif |
1199 | ||
a4da0d50 ME |
1200 | config ARCH_RANDOM |
1201 | def_bool n | |
1202 | ||
14cf11af PM |
1203 | source "net/Kconfig" |
1204 | ||
1205 | source "drivers/Kconfig" | |
1206 | ||
1207 | source "fs/Kconfig" | |
1208 | ||
14cf11af PM |
1209 | source "lib/Kconfig" |
1210 | ||
14cf11af PM |
1211 | source "arch/powerpc/Kconfig.debug" |
1212 | ||
1213 | source "security/Kconfig" | |
1214 | ||
14cf11af | 1215 | source "crypto/Kconfig" |
6f668280 | 1216 | |
1088a209 SM |
1217 | config PPC_LIB_RHEAP |
1218 | bool | |
1219 | ||
bbf45ba5 | 1220 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1221 | |
1222 | source "kernel/livepatch/Kconfig" |