Commit | Line | Data |
---|---|---|
b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
a0ae9c7c | 2 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 3 | |
14cf11af PM |
4 | config PPC32 |
5 | bool | |
6 | default y if !PPC64 | |
7 | ||
234a71a7 | 8 | config 32BIT |
9 | bool | |
10 | default y if PPC32 | |
11 | ||
14cf11af PM |
12 | config 64BIT |
13 | bool | |
14 | default y if PPC64 | |
15 | ||
600715dc JF |
16 | config ARCH_PHYS_ADDR_T_64BIT |
17 | def_bool PPC64 || PHYS_64BIT | |
18 | ||
787d44ca FT |
19 | config ARCH_DMA_ADDR_T_64BIT |
20 | def_bool ARCH_PHYS_ADDR_T_64BIT | |
21 | ||
14cf11af PM |
22 | config MMU |
23 | bool | |
24 | default y | |
25 | ||
9fea59bd ME |
26 | config ARCH_MMAP_RND_BITS_MAX |
27 | # On Book3S 64, the default virtual address space for 64-bit processes | |
28 | # is 2^47 (128TB). As a maximum, allow randomisation to consume up to | |
29 | # 32T of address space (2^45), which should ensure a reasonable gap | |
30 | # between bottom-up and top-down allocations for applications that | |
31 | # consume "normal" amounts of address space. Book3S 64 only supports 64K | |
32 | # and 4K page sizes. | |
33 | default 29 if PPC_BOOK3S_64 && PPC_64K_PAGES # 29 = 45 (32T) - 16 (64K) | |
34 | default 33 if PPC_BOOK3S_64 # 33 = 45 (32T) - 12 (4K) | |
35 | # | |
36 | # On all other 64-bit platforms (currently only Book3E), the virtual | |
37 | # address space is 2^46 (64TB). Allow randomisation to consume up to 16T | |
38 | # of address space (2^44). Only 4K page sizes are supported. | |
39 | default 32 if 64BIT # 32 = 44 (16T) - 12 (4K) | |
40 | # | |
41 | # For 32-bit, use the compat values, as they're the same. | |
42 | default ARCH_MMAP_RND_COMPAT_BITS_MAX | |
43 | ||
44 | config ARCH_MMAP_RND_BITS_MIN | |
45 | # Allow randomisation to consume up to 1GB of address space (2^30). | |
46 | default 14 if 64BIT && PPC_64K_PAGES # 14 = 30 (1GB) - 16 (64K) | |
47 | default 18 if 64BIT # 18 = 30 (1GB) - 12 (4K) | |
48 | # | |
49 | # For 32-bit, use the compat values, as they're the same. | |
50 | default ARCH_MMAP_RND_COMPAT_BITS_MIN | |
51 | ||
52 | config ARCH_MMAP_RND_COMPAT_BITS_MAX | |
53 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
54 | # Allow randomisation to consume up to 512MB of address space (2^29). | |
55 | default 11 if PPC_256K_PAGES # 11 = 29 (512MB) - 18 (256K) | |
56 | default 13 if PPC_64K_PAGES # 13 = 29 (512MB) - 16 (64K) | |
57 | default 15 if PPC_16K_PAGES # 15 = 29 (512MB) - 14 (16K) | |
58 | default 17 # 17 = 29 (512MB) - 12 (4K) | |
59 | ||
60 | config ARCH_MMAP_RND_COMPAT_BITS_MIN | |
61 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
62 | # Allow randomisation to consume up to 8MB of address space (2^23). | |
63 | default 5 if PPC_256K_PAGES # 5 = 23 (8MB) - 18 (256K) | |
64 | default 7 if PPC_64K_PAGES # 7 = 23 (8MB) - 16 (64K) | |
65 | default 9 if PPC_16K_PAGES # 9 = 23 (8MB) - 14 (16K) | |
66 | default 11 # 11 = 23 (8MB) - 12 (4K) | |
67 | ||
c2a7e818 | 68 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
69 | def_bool PPC64 |
70 | ||
c2a7e818 | 71 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 72 | def_bool PPC64 |
73 | ||
551b81f2 ME |
74 | config NR_IRQS |
75 | int "Number of virtual interrupt numbers" | |
859aefc5 | 76 | range 32 32768 |
551b81f2 ME |
77 | default "512" |
78 | help | |
79 | This defines the number of virtual interrupt numbers the kernel | |
80 | can manage. Virtual interrupt numbers are what you see in | |
81 | /proc/interrupts. If you configure your system to have too few, | |
82 | drivers will fail to load or worse - handle with care. | |
83 | ||
ddd703ca NP |
84 | config NMI_IPI |
85 | bool | |
2104180a | 86 | depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR) |
ddd703ca NP |
87 | default y |
88 | ||
75eb767e NP |
89 | config PPC_WATCHDOG |
90 | bool | |
91 | depends on HARDLOCKUP_DETECTOR | |
92 | depends on HAVE_HARDLOCKUP_DETECTOR_ARCH | |
93 | default y | |
94 | help | |
95 | This is a placeholder when the powerpc hardlockup detector | |
96 | watchdog is selected (arch/powerpc/kernel/watchdog.c). It is | |
97 | seleted via the generic lockup detector menu which is why we | |
98 | have no standalone config option for it here. | |
99 | ||
fd3e0bbc CH |
100 | config STACKTRACE_SUPPORT |
101 | bool | |
102 | default y | |
103 | ||
945feb17 BH |
104 | config TRACE_IRQFLAGS_SUPPORT |
105 | bool | |
945feb17 BH |
106 | default y |
107 | ||
108 | config LOCKDEP_SUPPORT | |
109 | bool | |
110 | default y | |
111 | ||
14cf11af PM |
112 | config RWSEM_GENERIC_SPINLOCK |
113 | bool | |
114 | ||
115 | config RWSEM_XCHGADD_ALGORITHM | |
116 | bool | |
117 | default y | |
118 | ||
95c354fe NP |
119 | config GENERIC_LOCKBREAK |
120 | bool | |
121 | default y | |
122 | depends on SMP && PREEMPT | |
123 | ||
e779b2f9 AM |
124 | config GENERIC_HWEIGHT |
125 | bool | |
126 | default y | |
127 | ||
817820b0 BH |
128 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
129 | bool | |
130 | ||
14cf11af PM |
131 | config PPC |
132 | bool | |
133 | default y | |
a7d2475a ME |
134 | # |
135 | # Please keep this list sorted alphabetically. | |
136 | # | |
137 | select ARCH_HAS_DEVMEM_IS_ALLOWED | |
138 | select ARCH_HAS_DMA_SET_COHERENT_MASK | |
139 | select ARCH_HAS_ELF_RANDOMIZE | |
6974f0c4 | 140 | select ARCH_HAS_FORTIFY_SOURCE |
a7d2475a | 141 | select ARCH_HAS_GCOV_PROFILE_ALL |
ea8c64ac | 142 | select ARCH_HAS_PHYS_TO_DMA |
32ce3862 | 143 | select ARCH_HAS_PMEM_API if PPC64 |
3ccfebed | 144 | select ARCH_HAS_MEMBARRIER_CALLBACKS |
a7d2475a ME |
145 | select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE |
146 | select ARCH_HAS_SG_CHAIN | |
4ec591e5 | 147 | select ARCH_HAS_STRICT_KERNEL_RWX if ((PPC_BOOK3S_64 || PPC32) && !RELOCATABLE && !HIBERNATION) |
a7d2475a | 148 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
6c44741d | 149 | select ARCH_HAS_UACCESS_FLUSHCACHE if PPC64 |
a7d2475a | 150 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
c0742441 | 151 | select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 |
a7d2475a | 152 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
b7e7c37b | 153 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 154 | select ARCH_MIGHT_HAVE_PC_SERIO |
4ec591e5 | 155 | select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX |
a7d2475a | 156 | select ARCH_SUPPORTS_ATOMIC_RMW |
a7d2475a ME |
157 | select ARCH_USE_BUILTIN_BSWAP |
158 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 | |
159 | select ARCH_WANT_IPC_PARSE_VERSION | |
77e58496 | 160 | select ARCH_WEAK_RELEASE_ACQUIRE |
d812c0e1 | 161 | select BINFMT_ELF |
a7d2475a ME |
162 | select BUILDTIME_EXTABLE_SORT |
163 | select CLONE_BACKWARDS | |
164 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN | |
165 | select EDAC_ATOMIC_SCRUB | |
166 | select EDAC_SUPPORT | |
167 | select GENERIC_ATOMIC64 if PPC32 | |
168 | select GENERIC_CLOCKEVENTS | |
169 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP | |
170 | select GENERIC_CMOS_UPDATE | |
171 | select GENERIC_CPU_AUTOPROBE | |
fd6e440f | 172 | select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 |
a7d2475a ME |
173 | select GENERIC_IRQ_SHOW |
174 | select GENERIC_IRQ_SHOW_LEVEL | |
175 | select GENERIC_SMP_IDLE_THREAD | |
176 | select GENERIC_STRNCPY_FROM_USER | |
177 | select GENERIC_STRNLEN_USER | |
d4cfb113 | 178 | select GENERIC_TIME_VSYSCALL |
a7d2475a | 179 | select HAVE_ARCH_AUDITSYSCALL |
a7d2475a ME |
180 | select HAVE_ARCH_JUMP_LABEL |
181 | select HAVE_ARCH_KGDB | |
9fea59bd ME |
182 | select HAVE_ARCH_MMAP_RND_BITS |
183 | select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT | |
a7d2475a ME |
184 | select HAVE_ARCH_SECCOMP_FILTER |
185 | select HAVE_ARCH_TRACEHOOK | |
186 | select HAVE_CBPF_JIT if !PPC64 | |
187 | select HAVE_CONTEXT_TRACKING if PPC64 | |
188 | select HAVE_DEBUG_KMEMLEAK | |
189 | select HAVE_DEBUG_STACKOVERFLOW | |
2b79d696 | 190 | select HAVE_DYNAMIC_FTRACE |
a7d2475a ME |
191 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
192 | select HAVE_EBPF_JIT if PPC64 | |
193 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU) | |
194 | select HAVE_FTRACE_MCOUNT_RECORD | |
60ce8f72 | 195 | select HAVE_FUNCTION_GRAPH_TRACER |
a7d2475a | 196 | select HAVE_FUNCTION_TRACER |
65c059bc | 197 | select HAVE_GCC_PLUGINS |
e585513b | 198 | select HAVE_GENERIC_GUP |
a7d2475a | 199 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) |
ec7748b5 | 200 | select HAVE_IDE |
a1f242ff | 201 | select HAVE_IOREMAP_PROT |
a7d2475a ME |
202 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
203 | select HAVE_KERNEL_GZIP | |
3f550096 | 204 | select HAVE_KPROBES |
ead514d5 | 205 | select HAVE_KPROBES_ON_FTRACE |
9edddaa2 | 206 | select HAVE_KRETPROBES |
a7d2475a | 207 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
95f72d1e | 208 | select HAVE_MEMBLOCK |
1d7cfe18 | 209 | select HAVE_MEMBLOCK_NODE_MAP |
a7d2475a | 210 | select HAVE_MOD_ARCH_SPECIFIC |
2104180a NP |
211 | select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) |
212 | select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S) | |
4e491d14 | 213 | select HAVE_OPROFILE |
a7d2475a | 214 | select HAVE_OPTPROBES if PPC64 |
cdd6c482 | 215 | select HAVE_PERF_EVENTS |
a7d2475a | 216 | select HAVE_PERF_EVENTS_NMI if PPC64 |
92e5aae4 | 217 | select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH |
ed4a4ef8 | 218 | select HAVE_PERF_REGS |
17ed7c38 | 219 | select HAVE_PERF_USER_STACK_DUMP |
a7d2475a | 220 | select HAVE_RCU_TABLE_FREE if SMP |
359e4284 | 221 | select HAVE_REGS_AND_STACK_ACCESS_API |
a7d2475a ME |
222 | select HAVE_SYSCALL_TRACEPOINTS |
223 | select HAVE_VIRT_CPU_ACCOUNTING | |
518470fe | 224 | select HAVE_IRQ_TIME_ACCOUNTING |
cc79ca69 | 225 | select IRQ_DOMAIN |
e8d2c473 | 226 | select IRQ_FORCED_THREADING |
786d35d4 | 227 | select MODULES_USE_ELF_RELA |
10239733 | 228 | select NO_BOOTMEM |
a7d2475a ME |
229 | select OF |
230 | select OF_EARLY_FLATTREE | |
231 | select OF_RESERVED_MEM | |
232 | select OLD_SIGACTION if PPC32 | |
233 | select OLD_SIGSUSPEND | |
234 | select SPARSE_IRQ | |
235 | select SYSCTL_EXCEPTION_TRACE | |
236 | select VIRT_TO_BUS if !PPC64 | |
237 | # | |
238 | # Please keep this list sorted alphabetically. | |
239 | # | |
14cf11af | 240 | |
7a332b0c | 241 | config GENERIC_CSUM |
d4fde568 | 242 | def_bool n |
7a332b0c | 243 | |
14cf11af PM |
244 | config EARLY_PRINTK |
245 | bool | |
51d3082f | 246 | default y |
14cf11af | 247 | |
b71d47c1 JB |
248 | config PANIC_TIMEOUT |
249 | int | |
250 | default 180 | |
251 | ||
14cf11af PM |
252 | config COMPAT |
253 | bool | |
254 | default y if PPC64 | |
01e31dba | 255 | select COMPAT_BINFMT_ELF |
48b25c43 | 256 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 257 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
258 | |
259 | config SYSVIPC_COMPAT | |
260 | bool | |
261 | depends on COMPAT && SYSVIPC | |
262 | default y | |
263 | ||
264 | # All PPC32s use generic nvram driver through ppc_md | |
265 | config GENERIC_NVRAM | |
266 | bool | |
267 | default y if PPC32 | |
268 | ||
ae1e9130 | 269 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
270 | bool |
271 | default y | |
272 | ||
273 | config ARCH_MAY_HAVE_PC_FDC | |
274 | bool | |
3484a31f | 275 | default PCI |
14cf11af | 276 | |
08264cbc KG |
277 | config PPC_UDBG_16550 |
278 | bool | |
279 | default n | |
280 | ||
08264cbc KG |
281 | config GENERIC_TBSYNC |
282 | bool | |
283 | default y if PPC32 && SMP | |
284 | default n | |
285 | ||
e65e1fc2 AV |
286 | config AUDIT_ARCH |
287 | bool | |
288 | default y | |
289 | ||
73c9ceab JF |
290 | config GENERIC_BUG |
291 | bool | |
292 | default y | |
293 | depends on BUG | |
294 | ||
b3028878 | 295 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 296 | default y if PMAC_APM_EMU |
b3028878 JB |
297 | bool |
298 | ||
6c5b59b9 DG |
299 | config EPAPR_BOOT |
300 | bool | |
301 | help | |
302 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
303 | default n | |
304 | ||
f4fc4a5b KG |
305 | config DEFAULT_UIMAGE |
306 | bool | |
307 | help | |
308 | Used to allow a board to specify it wants a uImage built by default | |
309 | default n | |
310 | ||
801e4062 JB |
311 | config ARCH_HIBERNATION_POSSIBLE |
312 | bool | |
543b9fd3 JB |
313 | default y |
314 | ||
f4cb5700 JB |
315 | config ARCH_SUSPEND_POSSIBLE |
316 | def_bool y | |
4ffd6952 | 317 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
318 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
319 | || 44x || 40x | |
f4cb5700 | 320 | |
4c75a6f4 BH |
321 | config PPC_DCR_NATIVE |
322 | bool | |
323 | default n | |
324 | ||
325 | config PPC_DCR_MMIO | |
326 | bool | |
327 | default n | |
328 | ||
329 | config PPC_DCR | |
330 | bool | |
331 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
332 | default y | |
333 | ||
4c9d2800 BH |
334 | config PPC_OF_PLATFORM_PCI |
335 | bool | |
373a6da1 | 336 | depends on PCI |
4c9d2800 BH |
337 | depends on PPC64 # not supported on 32 bits yet |
338 | default n | |
339 | ||
6a11f75b | 340 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
4e003747 | 341 | depends on PPC32 || PPC_BOOK3S_64 |
6a11f75b AM |
342 | def_bool y |
343 | ||
8b7b80b9 AM |
344 | config ARCH_SUPPORTS_UPROBES |
345 | def_bool y | |
346 | ||
172ae2e7 DK |
347 | config PPC_ADV_DEBUG_REGS |
348 | bool | |
349 | depends on 40x || BOOKE | |
350 | default y | |
351 | ||
352 | config PPC_ADV_DEBUG_IACS | |
353 | int | |
354 | depends on PPC_ADV_DEBUG_REGS | |
355 | default 4 if 44x | |
356 | default 2 | |
357 | ||
358 | config PPC_ADV_DEBUG_DACS | |
359 | int | |
360 | depends on PPC_ADV_DEBUG_REGS | |
361 | default 2 | |
362 | ||
363 | config PPC_ADV_DEBUG_DVCS | |
364 | int | |
365 | depends on PPC_ADV_DEBUG_REGS | |
366 | default 2 if 44x | |
367 | default 0 | |
368 | ||
369 | config PPC_ADV_DEBUG_DAC_RANGE | |
370 | bool | |
371 | depends on PPC_ADV_DEBUG_REGS && 44x | |
372 | default y | |
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" | |
968159c0 | 408 | depends on 4xx || PPC_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 | |
ec3cf2ec BB |
486 | ---help--- |
487 | Support for IO bounce buffering for systems without an IOMMU. | |
488 | This allows us to DMA to the full physical address space on | |
489 | platforms where the size of a physical address is larger | |
490 | than the bus address. Not all platforms support this. | |
491 | ||
14cf11af PM |
492 | config HOTPLUG_CPU |
493 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 494 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 495 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
496 | ---help--- |
497 | Say Y here to be able to disable and re-enable individual | |
498 | CPUs at runtime on SMP machines. | |
499 | ||
500 | Say N if you are unsure. | |
501 | ||
12633e80 NF |
502 | config ARCH_CPU_PROBE_RELEASE |
503 | def_bool y | |
504 | depends on HOTPLUG_CPU | |
505 | ||
cc57637b YG |
506 | config ARCH_ENABLE_MEMORY_HOTPLUG |
507 | def_bool y | |
508 | ||
a99824f3 BP |
509 | config ARCH_HAS_WALK_MEMORY |
510 | def_bool y | |
511 | ||
1482471d BP |
512 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
513 | def_bool y | |
514 | ||
f2296a3d MS |
515 | config PPC64_SUPPORTS_MEMORY_FAILURE |
516 | bool "Add support for memory hwpoison" | |
517 | depends on PPC_BOOK3S_64 | |
518 | default "y" if PPC_POWERNV | |
519 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
520 | ||
14cf11af | 521 | config KEXEC |
642e56ff | 522 | bool "kexec system call" |
96eea642 | 523 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 524 | select KEXEC_CORE |
14cf11af PM |
525 | help |
526 | kexec is a system call that implements the ability to shutdown your | |
527 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 528 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
529 | you can start any kernel with it, not just Linux. |
530 | ||
1f1332f7 | 531 | The name comes from the similarity to the exec system call. |
14cf11af PM |
532 | |
533 | It is an ongoing process to be certain the hardware in a machine | |
534 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
535 | initially work for you. As of this writing the exact hardware |
536 | interface is strongly in flux, so no good recommendation can be | |
537 | made. | |
14cf11af | 538 | |
80f60e50 TJB |
539 | config KEXEC_FILE |
540 | bool "kexec file based system call" | |
541 | select KEXEC_CORE | |
467d2782 | 542 | select HAVE_IMA_KEXEC |
80f60e50 TJB |
543 | select BUILD_BIN2C |
544 | depends on PPC64 | |
545 | depends on CRYPTO=y | |
546 | depends on CRYPTO_SHA256=y | |
547 | help | |
548 | This is a new version of the kexec system call. This call is | |
549 | file based and takes in file descriptors as system call arguments | |
550 | for kernel and initramfs as opposed to a list of segments as is the | |
551 | case for the older kexec call. | |
552 | ||
b799a09f AT |
553 | config ARCH_HAS_KEXEC_PURGATORY |
554 | def_bool KEXEC_FILE | |
555 | ||
4c91bd6e KH |
556 | config RELOCATABLE |
557 | bool "Build a relocatable kernel" | |
084a275e | 558 | depends on PPC64 || (FLATMEM && (44x || FSL_BOOKE)) |
4c91bd6e | 559 | select NONSTATIC_KERNEL |
71810db2 | 560 | select MODULE_REL_CRCS if MODVERSIONS |
4c91bd6e KH |
561 | help |
562 | This builds a kernel image that is capable of running at the | |
563 | location the kernel is loaded at. For ppc32, there is no any | |
564 | alignment restrictions, and this feature is a superset of | |
565 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
566 | 16k-aligned base address. The kernel is linked as a | |
567 | position-independent executable (PIE) and contains dynamic relocations | |
568 | which are processed early in the bootup process. | |
569 | ||
570 | One use is for the kexec on panic case where the recovery kernel | |
571 | must live at a different physical address than the primary | |
572 | kernel. | |
573 | ||
574 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
575 | it has been loaded at and the compile time physical addresses | |
576 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
577 | setting can still be useful to bootwrappers that need to know the | |
578 | load address of the kernel (eg. u-boot/mkimage). | |
579 | ||
70839d20 NP |
580 | config RELOCATABLE_TEST |
581 | bool "Test relocatable kernel" | |
582 | depends on (PPC64 && RELOCATABLE) | |
583 | default n | |
584 | help | |
585 | This runs the relocatable kernel at the address it was initially | |
586 | loaded at, which tends to be non-zero and therefore test the | |
587 | relocation code. | |
588 | ||
e8625d46 | 589 | config CRASH_DUMP |
22bd0177 | 590 | bool "Build a dump capture kernel" |
47da4219 | 591 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
084a275e | 592 | select RELOCATABLE if PPC64 || 44x || FSL_BOOKE |
e8625d46 | 593 | help |
22bd0177 | 594 | Build a kernel suitable for use as a dump capture kernel. |
54622f10 MK |
595 | The same kernel binary can be used as production kernel and dump |
596 | capture kernel. | |
e8625d46 | 597 | |
eb39c880 MS |
598 | config FA_DUMP |
599 | bool "Firmware-assisted dump" | |
22bd0177 HB |
600 | depends on PPC64 && PPC_RTAS |
601 | select CRASH_CORE | |
602 | select CRASH_DUMP | |
242f271c | 603 | help |
eb39c880 MS |
604 | A robust mechanism to get reliable kernel crash dump with |
605 | assistance from firmware. This approach does not use kexec, | |
22bd0177 | 606 | instead firmware assists in booting the capture kernel |
eb39c880 MS |
607 | while preserving memory contents. Firmware-assisted dump |
608 | is meant to be a kdump replacement offering robustness and | |
609 | speed not possible without system firmware assistance. | |
242f271c MA |
610 | |
611 | If unsure, say "N" | |
612 | ||
14cf11af PM |
613 | config IRQ_ALL_CPUS |
614 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 615 | depends on SMP |
14cf11af PM |
616 | help |
617 | This option gives the kernel permission to distribute IRQs across | |
618 | multiple CPUs. Saying N here will route all IRQs to the first | |
619 | CPU. Generally saying Y is safe, although some problems have been | |
620 | reported with SMP Power Macintoshes with this option enabled. | |
621 | ||
ffa27b6b AW |
622 | config NUMA |
623 | bool "NUMA support" | |
624 | depends on PPC64 | |
625 | default y if SMP && PPC_PSERIES | |
626 | ||
c80d79d7 YG |
627 | config NODES_SHIFT |
628 | int | |
ea55bf29 | 629 | default "8" if PPC64 |
c80d79d7 YG |
630 | default "4" |
631 | depends on NEED_MULTIPLE_NODES | |
632 | ||
8c272261 NA |
633 | config USE_PERCPU_NUMA_NODE_ID |
634 | def_bool y | |
635 | depends on NUMA | |
636 | ||
64bb80d8 NA |
637 | config HAVE_MEMORYLESS_NODES |
638 | def_bool y | |
639 | depends on NUMA | |
640 | ||
14cf11af PM |
641 | config ARCH_SELECT_MEMORY_MODEL |
642 | def_bool y | |
643 | depends on PPC64 | |
644 | ||
645 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
646 | def_bool y |
647 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 648 | |
45fb6cea | 649 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 650 | def_bool y |
9100b205 | 651 | depends on PPC64 |
d29eff7b | 652 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 653 | |
45fb6cea | 654 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 655 | def_bool y |
7b3912f4 | 656 | depends on PPC_BOOK3S_64 |
14cf11af | 657 | |
5a1eb5c4 | 658 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 659 | bool |
5a1eb5c4 | 660 | |
f6853eb5 ME |
661 | config ILLEGAL_POINTER_VALUE |
662 | hex | |
663 | # This is roughly half way between the top of user space and the bottom | |
664 | # of kernel space, which seems about as good as we can get. | |
665 | default 0x5deadbeef0000000 if PPC64 | |
666 | default 0 | |
667 | ||
c67c3cb4 | 668 | source "mm/Kconfig" |
14cf11af | 669 | |
7e9191da MK |
670 | config ARCH_MEMORY_PROBE |
671 | def_bool y | |
672 | depends on MEMORY_HOTPLUG | |
673 | ||
75167957 AW |
674 | # Some NUMA nodes have memory ranges that span |
675 | # other nodes. Even though a pfn is valid and | |
676 | # between a node's start and end pfns, it may not | |
677 | # reside on that node. See memmap_init_zone() | |
678 | # for details. | |
679 | config NODES_SPAN_OTHER_NODES | |
680 | def_bool y | |
681 | depends on NEED_MULTIPLE_NODES | |
682 | ||
e1240122 YT |
683 | config STDBINUTILS |
684 | bool "Using standard binutils settings" | |
685 | depends on 44x | |
686 | default y | |
687 | help | |
688 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
689 | Note, that kernel will be able to run only those applications, | |
690 | which had been compiled using binutils later than 2.17.50.0.3 with | |
691 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
692 | the older binutils, you can patch them with a trivial patch, which | |
693 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
694 | ||
ca9153a3 IY |
695 | choice |
696 | prompt "Page size" | |
697 | default PPC_4K_PAGES | |
3c726f8d | 698 | help |
ca9153a3 IY |
699 | Select the kernel logical page size. Increasing the page size |
700 | will reduce software overhead at each page boundary, allow | |
701 | hardware prefetch mechanisms to be more effective, and allow | |
702 | larger dma transfers increasing IO efficiency and reducing | |
703 | overhead. However the utilization of memory will increase. | |
704 | For example, each cached file will using a multiple of the | |
705 | page size to hold its contents and the difference between the | |
706 | end of file and the end of page is wasted. | |
707 | ||
708 | Some dedicated systems, such as software raid serving with | |
709 | accelerated calculations, have shown significant increases. | |
710 | ||
711 | If you configure a 64 bit kernel for 64k pages but the | |
712 | processor does not support them, then the kernel will simulate | |
713 | them with 4k pages, loading them on demand, but with the | |
714 | reduced software overhead and larger internal fragmentation. | |
715 | For the 32 bit kernel, a large page option will not be offered | |
716 | unless it is supported by the configured processor. | |
717 | ||
718 | If unsure, choose 4K_PAGES. | |
719 | ||
720 | config PPC_4K_PAGES | |
721 | bool "4k page size" | |
19f97c98 | 722 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
723 | |
724 | config PPC_16K_PAGES | |
55f8b5b8 ME |
725 | bool "16k page size" |
726 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
727 | |
728 | config PPC_64K_PAGES | |
55f8b5b8 | 729 | bool "64k page size" |
4e003747 | 730 | depends on !PPC_FSL_BOOK3E && (44x || PPC_BOOK3S_64 || PPC_BOOK3E_64) |
19f97c98 | 731 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 732 | |
e1240122 | 733 | config PPC_256K_PAGES |
55f8b5b8 ME |
734 | bool "256k page size" |
735 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
736 | help |
737 | Make the page size 256k. | |
738 | ||
739 | As the ELF standard only requires alignment to support page | |
740 | sizes up to 64k, you will need to compile all of your user | |
741 | space applications with a non-standard binutils settings | |
742 | (see the STDBINUTILS description for details). | |
743 | ||
744 | Say N unless you know what you are doing. | |
745 | ||
ca9153a3 | 746 | endchoice |
3c726f8d | 747 | |
47613407 HM |
748 | config THREAD_SHIFT |
749 | int "Thread shift" if EXPERT | |
750 | range 13 15 | |
751 | default "15" if PPC_256K_PAGES | |
752 | default "14" if PPC64 | |
753 | default "13" | |
754 | help | |
755 | Used to define the stack size. The default is almost always what you | |
756 | want. Only change this if you know what you are doing. | |
757 | ||
53bcddb9 SR |
758 | config FORCE_MAX_ZONEORDER |
759 | int "Maximum zone order" | |
a7ee5395 | 760 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 761 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 762 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
763 | default "13" if PPC64 && !PPC_64K_PAGES |
764 | range 9 64 if PPC32 && PPC_16K_PAGES | |
765 | default "9" if PPC32 && PPC_16K_PAGES | |
766 | range 7 64 if PPC32 && PPC_64K_PAGES | |
767 | default "7" if PPC32 && PPC_64K_PAGES | |
768 | range 5 64 if PPC32 && PPC_256K_PAGES | |
769 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 770 | range 11 64 |
53bcddb9 SR |
771 | default "11" |
772 | help | |
773 | The kernel memory allocator divides physically contiguous memory | |
774 | blocks into "zones", where each zone is a power of two number of | |
775 | pages. This option selects the largest power of two that the kernel | |
776 | keeps in the memory allocator. If you need to allocate very large | |
777 | blocks of physically contiguous memory, then you may need to | |
778 | increase this value. | |
779 | ||
780 | This config option is actually maximum order plus one. For example, | |
781 | a value of 11 means that the largest free memory block is 2^10 pages. | |
782 | ||
783 | The page size is not necessarily 4KB. For example, on 64-bit | |
784 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
785 | this in mind when choosing a value for this option. | |
786 | ||
fa28237c PM |
787 | config PPC_SUBPAGE_PROT |
788 | bool "Support setting protections for 4k subpages" | |
4e003747 | 789 | depends on PPC_BOOK3S_64 && PPC_64K_PAGES |
fa28237c PM |
790 | help |
791 | This option adds support for a system call to allow user programs | |
792 | to set access permissions (read/write, readonly, or no access) | |
793 | on the 4k subpages of each 64k page. | |
794 | ||
e83d0169 IM |
795 | config PPC_COPRO_BASE |
796 | bool | |
797 | default n | |
798 | ||
14cf11af PM |
799 | config SCHED_SMT |
800 | bool "SMT (Hyperthreading) scheduler support" | |
801 | depends on PPC64 && SMP | |
14cf11af PM |
802 | help |
803 | SMT scheduler support improves the CPU scheduler's decision making | |
804 | when dealing with POWER5 cpus at a cost of slightly increased | |
805 | overhead in some places. If unsure say N here. | |
806 | ||
b92a66a6 MN |
807 | config PPC_DENORMALISATION |
808 | bool "PowerPC denormalisation exception handling" | |
809 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 810 | default "y" if PPC_POWERNV |
b92a66a6 MN |
811 | ---help--- |
812 | Add support for handling denormalisation of single precision | |
813 | values. Useful for bare metal only. If unsure say Y here. | |
814 | ||
14cf11af PM |
815 | config CMDLINE_BOOL |
816 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
817 | |
818 | config CMDLINE | |
819 | string "Initial kernel command string" | |
820 | depends on CMDLINE_BOOL | |
821 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
822 | help | |
823 | On some platforms, there is currently no way for the boot loader to | |
824 | pass arguments to the kernel. For these platforms, you can supply | |
825 | some command-line options at build time by entering them here. In | |
826 | most cases you will need to specify the root device here. | |
827 | ||
eb3b80f6 SS |
828 | config CMDLINE_FORCE |
829 | bool "Always use the default kernel command string" | |
830 | depends on CMDLINE_BOOL | |
831 | help | |
832 | Always use the default kernel command string, even if the boot | |
833 | loader passes other arguments to the kernel. | |
834 | This is useful if you cannot or don't want to change the | |
835 | command-line options your boot loader passes to the kernel. | |
836 | ||
c356aa45 GL |
837 | config EXTRA_TARGETS |
838 | string "Additional default image types" | |
839 | help | |
840 | List additional targets to be built by the bootwrapper here (separated | |
841 | by spaces). This is useful for targets that depend of device tree | |
842 | files in the .dts directory. | |
843 | ||
844 | Targets in this list will be build as part of the default build | |
845 | target, or when the user does a 'make zImage' or a | |
846 | 'make zImage.initrd'. | |
847 | ||
848 | If unsure, leave blank | |
849 | ||
b28f5081 JB |
850 | config ARCH_WANTS_FREEZER_CONTROL |
851 | def_bool y | |
852 | depends on ADB_PMU | |
853 | ||
14cf11af | 854 | source kernel/power/Kconfig |
14cf11af PM |
855 | |
856 | config SECCOMP | |
857 | bool "Enable seccomp to safely compute untrusted bytecode" | |
858 | depends on PROC_FS | |
859 | default y | |
860 | help | |
861 | This kernel feature is useful for number crunching applications | |
862 | that may need to compute untrusted bytecode during their | |
863 | execution. By using pipes or other transports made available to | |
864 | the process as file descriptors supporting the read/write | |
865 | syscalls, it's possible to isolate those applications in | |
866 | their own address space using seccomp. Once seccomp is | |
867 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
868 | and the task is only allowed to execute a few safe syscalls | |
869 | defined by each seccomp mode. | |
870 | ||
871 | If unsure, say Y. Only embedded should say N here. | |
872 | ||
92e3da3c RP |
873 | config PPC_MEM_KEYS |
874 | prompt "PowerPC Memory Protection Keys" | |
875 | def_bool y | |
876 | depends on PPC_BOOK3S_64 | |
877 | select ARCH_USES_HIGH_VMA_FLAGS | |
878 | select ARCH_HAS_PKEYS | |
879 | help | |
880 | Memory Protection Keys provides a mechanism for enforcing | |
881 | page-based protections, but without requiring modification of the | |
882 | page tables when an application changes protection domains. | |
883 | ||
884 | For details, see Documentation/vm/protection-keys.txt | |
885 | ||
886 | If unsure, say y. | |
887 | ||
14cf11af PM |
888 | endmenu |
889 | ||
890 | config ISA_DMA_API | |
891 | bool | |
3d066d77 | 892 | default PCI |
14cf11af PM |
893 | |
894 | menu "Bus options" | |
895 | ||
896 | config ISA | |
897 | bool "Support for ISA-bus hardware" | |
933ee711 | 898 | depends on PPC_CHRP |
f9bd170a | 899 | select PPC_I8259 |
14cf11af PM |
900 | help |
901 | Find out whether you have ISA slots on your motherboard. ISA is the | |
902 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
903 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
904 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
905 | embedded board, consult your board documentation. | |
14cf11af | 906 | |
5ac6da66 CL |
907 | config ZONE_DMA |
908 | bool | |
909 | default y | |
910 | ||
af407c6d FT |
911 | config NEED_DMA_MAP_STATE |
912 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
913 | ||
e32205eb FT |
914 | config NEED_SG_DMA_LENGTH |
915 | def_bool y | |
916 | ||
14cf11af PM |
917 | config GENERIC_ISA_DMA |
918 | bool | |
1927445a | 919 | depends on ISA_DMA_API |
14cf11af PM |
920 | default y |
921 | ||
25635c71 PM |
922 | config PPC_INDIRECT_PCI |
923 | bool | |
924 | depends on PCI | |
63dafe57 | 925 | default y if 40x || 44x |
25635c71 PM |
926 | default n |
927 | ||
14cf11af PM |
928 | config EISA |
929 | bool | |
930 | ||
931 | config SBUS | |
932 | bool | |
933 | ||
08264cbc KG |
934 | config FSL_SOC |
935 | bool | |
936 | ||
55c44991 RZ |
937 | config FSL_PCI |
938 | bool | |
939 | select PPC_INDIRECT_PCI | |
d0839118 | 940 | select PCI_QUIRKS |
55c44991 | 941 | |
4ffd6952 AV |
942 | config FSL_PMC |
943 | bool | |
944 | default y | |
945 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
946 | help | |
947 | Freescale MPC85xx/MPC86xx power management controller support | |
948 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
949 | ||
d164f6d4 VG |
950 | config PPC4xx_CPM |
951 | bool | |
952 | default y | |
953 | depends on SUSPEND && (44x || 40x) | |
954 | help | |
955 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
956 | It also enables support for two different idle states (idle-wait | |
957 | and idle-doze). | |
958 | ||
2a706919 SR |
959 | config 4xx_SOC |
960 | bool | |
961 | ||
acaa7aa3 | 962 | config FSL_LBC |
3ab8f2a2 | 963 | bool "Freescale Local Bus support" |
acaa7aa3 | 964 | help |
3ab8f2a2 RZ |
965 | Enables reporting of errors from the Freescale local bus |
966 | controller. Also contains some common code used by | |
967 | drivers for specific local bus peripherals. | |
acaa7aa3 | 968 | |
83ff9dcf AV |
969 | config FSL_GTM |
970 | bool | |
971 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
972 | help | |
973 | Freescale General-purpose Timers support | |
974 | ||
14cf11af PM |
975 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
976 | config MCA | |
977 | bool | |
978 | ||
b500563b JR |
979 | # Platforms that what PCI turned unconditionally just do select PCI |
980 | # in their config node. Platforms that want to choose at config | |
981 | # time should select PPC_PCI_CHOICE | |
982 | config PPC_PCI_CHOICE | |
983 | bool | |
984 | ||
14cf11af | 985 | config PCI |
b500563b | 986 | bool "PCI support" if PPC_PCI_CHOICE |
968159c0 | 987 | default y if !40x && !CPM2 && !PPC_8xx && !PPC_83xx \ |
bcc48591 | 988 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
e9599866 | 989 | default PCI_QSPAN if PPC_8xx |
335b8cf7 | 990 | select GENERIC_PCI_IOMAP |
14cf11af PM |
991 | help |
992 | Find out whether your system includes a PCI bus. PCI is the name of | |
993 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
994 | your box. If you say Y here, the kernel will include drivers and | |
995 | infrastructure code to support PCI bus devices. | |
996 | ||
997 | config PCI_DOMAINS | |
36e23590 MW |
998 | def_bool PCI |
999 | ||
1000 | config PCI_SYSCALL | |
1001 | def_bool PCI | |
14cf11af | 1002 | |
14cf11af PM |
1003 | config PCI_QSPAN |
1004 | bool "QSpan PCI" | |
e9599866 | 1005 | depends on PPC_8xx |
f9bd170a | 1006 | select PPC_I8259 |
14cf11af PM |
1007 | help |
1008 | Say Y here if you have a system based on a Motorola 8xx-series | |
1009 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
1010 | ||
1011 | config PCI_8260 | |
1012 | bool | |
1013 | depends on PCI && 8260 | |
25635c71 | 1014 | select PPC_INDIRECT_PCI |
14cf11af PM |
1015 | default y |
1016 | ||
14cf11af PM |
1017 | source "drivers/pci/Kconfig" |
1018 | ||
1019 | source "drivers/pcmcia/Kconfig" | |
1020 | ||
f1f389d5 ZW |
1021 | config HAS_RAPIDIO |
1022 | bool | |
1023 | default n | |
1024 | ||
1025 | config RAPIDIO | |
56abde72 | 1026 | tristate "RapidIO support" |
388b78ad | 1027 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
1028 | help |
1029 | If you say Y here, the kernel will include drivers and | |
1030 | infrastructure code to support RapidIO interconnect devices. | |
1031 | ||
388b78ad AB |
1032 | config FSL_RIO |
1033 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 1034 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
1035 | default "n" |
1036 | ---help--- | |
1037 | Include support for RapidIO controller on Freescale embedded | |
1038 | processors (MPC8548, MPC8641, etc). | |
1039 | ||
f1f389d5 ZW |
1040 | source "drivers/rapidio/Kconfig" |
1041 | ||
14cf11af PM |
1042 | endmenu |
1043 | ||
0f890c8d SP |
1044 | config NONSTATIC_KERNEL |
1045 | bool | |
1046 | default n | |
1047 | ||
14cf11af PM |
1048 | menu "Advanced setup" |
1049 | depends on PPC32 | |
1050 | ||
1051 | config ADVANCED_OPTIONS | |
1052 | bool "Prompt for advanced kernel configuration options" | |
1053 | help | |
1054 | This option will enable prompting for a variety of advanced kernel | |
1055 | configuration options. These options can cause the kernel to not | |
1056 | work if they are set incorrectly, but can be used to optimize certain | |
1057 | aspects of kernel memory management. | |
1058 | ||
1059 | Unless you know what you are doing, say N here. | |
1060 | ||
1061 | comment "Default settings for advanced configuration options are used" | |
1062 | depends on !ADVANCED_OPTIONS | |
1063 | ||
14cf11af PM |
1064 | config LOWMEM_SIZE_BOOL |
1065 | bool "Set maximum low memory" | |
1066 | depends on ADVANCED_OPTIONS | |
1067 | help | |
1068 | This option allows you to set the maximum amount of memory which | |
1069 | will be used as "low memory", that is, memory which the kernel can | |
1070 | access directly, without having to set up a kernel virtual mapping. | |
1071 | This can be useful in optimizing the layout of kernel virtual | |
1072 | memory. | |
1073 | ||
1074 | Say N here unless you know what you are doing. | |
1075 | ||
1076 | config LOWMEM_SIZE | |
1077 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1078 | default "0x30000000" | |
1079 | ||
96051465 TP |
1080 | config LOWMEM_CAM_NUM_BOOL |
1081 | bool "Set number of CAMs to use to map low memory" | |
1082 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
1083 | help | |
1084 | This option allows you to set the maximum number of CAM slots that | |
1085 | will be used to map low memory. There are a limited number of slots | |
1086 | available and even more limited number that will fit in the L1 MMU. | |
1087 | However, using more entries will allow mapping more low memory. This | |
1088 | can be useful in optimizing the layout of kernel virtual memory. | |
1089 | ||
1090 | Say N here unless you know what you are doing. | |
1091 | ||
1092 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 1093 | depends on FSL_BOOKE |
96051465 TP |
1094 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
1095 | default 3 | |
1096 | ||
0f890c8d | 1097 | config DYNAMIC_MEMSTART |
642e56ff KC |
1098 | bool "Enable page aligned dynamic load address for kernel" |
1099 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
1100 | select NONSTATIC_KERNEL |
1101 | help | |
1102 | This option enables the kernel to be loaded at any page aligned | |
1103 | physical address. The kernel creates a mapping from KERNELBASE to | |
1104 | the address where the kernel is loaded. The page size here implies | |
1105 | the TLB page size of the mapping for kernel on the particular platform. | |
1106 | Please refer to the init code for finding the TLB page size. | |
1107 | ||
1108 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1109 | kernel image, where the only restriction is the page aligned kernel | |
1110 | load address. When this option is enabled, the compile time physical | |
1111 | address CONFIG_PHYSICAL_START is ignored. | |
1112 | ||
9c5f7d39 SP |
1113 | This option is overridden by CONFIG_RELOCATABLE |
1114 | ||
37dd2bad KG |
1115 | config PAGE_OFFSET_BOOL |
1116 | bool "Set custom page offset address" | |
1117 | depends on ADVANCED_OPTIONS | |
1118 | help | |
1119 | This option allows you to set the kernel virtual address at which | |
1120 | the kernel will map low memory. This can be useful in optimizing | |
1121 | the virtual memory layout of the system. | |
1122 | ||
1123 | Say N here unless you know what you are doing. | |
1124 | ||
1125 | config PAGE_OFFSET | |
1126 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1127 | default "0xc0000000" | |
1128 | ||
14cf11af PM |
1129 | config KERNEL_START_BOOL |
1130 | bool "Set custom kernel base address" | |
1131 | depends on ADVANCED_OPTIONS | |
1132 | help | |
1133 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1134 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1135 | however there are times (like kdump) that one might not want them | |
1136 | to be the same. | |
14cf11af PM |
1137 | |
1138 | Say N here unless you know what you are doing. | |
1139 | ||
1140 | config KERNEL_START | |
1141 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1142 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1143 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1144 | default "0xc0000000" |
1145 | ||
37dd2bad KG |
1146 | config PHYSICAL_START_BOOL |
1147 | bool "Set physical address where the kernel is loaded" | |
1148 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1149 | help | |
1150 | This gives the physical address where the kernel is loaded. | |
1151 | ||
1152 | Say N here unless you know what you are doing. | |
1153 | ||
1154 | config PHYSICAL_START | |
1155 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1156 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1157 | default "0x00000000" |
1158 | ||
1159 | config PHYSICAL_ALIGN | |
1160 | hex | |
c8f3570b | 1161 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1162 | help |
1163 | This value puts the alignment restrictions on physical address | |
1164 | where kernel is loaded and run from. Kernel is compiled for an | |
1165 | address which meets above alignment restriction. | |
1166 | ||
14cf11af PM |
1167 | config TASK_SIZE_BOOL |
1168 | bool "Set custom user task size" | |
1169 | depends on ADVANCED_OPTIONS | |
1170 | help | |
1171 | This option allows you to set the amount of virtual address space | |
1172 | allocated to user tasks. This can be useful in optimizing the | |
1173 | virtual memory layout of the system. | |
1174 | ||
1175 | Say N here unless you know what you are doing. | |
1176 | ||
1177 | config TASK_SIZE | |
1178 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1179 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1180 | default "0xc0000000" |
14cf11af | 1181 | |
84532a0f BH |
1182 | config CONSISTENT_SIZE_BOOL |
1183 | bool "Set custom consistent memory pool size" | |
1184 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1185 | help | |
1186 | This option allows you to set the size of the | |
1187 | consistent memory pool. This pool of virtual memory | |
1188 | is used to make consistent memory allocations. | |
1189 | ||
1190 | config CONSISTENT_SIZE | |
1191 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1192 | default "0x00200000" if NOT_COHERENT_CACHE | |
1193 | ||
14cf11af PM |
1194 | config PIN_TLB |
1195 | bool "Pinned Kernel TLBs (860 ONLY)" | |
87be3e2d CL |
1196 | depends on ADVANCED_OPTIONS && PPC_8xx && \ |
1197 | !DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX | |
62f64b49 | 1198 | |
a3059b0c CL |
1199 | config PIN_TLB_DATA |
1200 | bool "Pinned TLB for DATA" | |
1201 | depends on PIN_TLB | |
1202 | default y | |
62f64b49 CL |
1203 | |
1204 | config PIN_TLB_IMMR | |
1205 | bool "Pinned TLB for IMMR" | |
1206 | depends on PIN_TLB | |
1207 | default y | |
a3059b0c CL |
1208 | |
1209 | config PIN_TLB_TEXT | |
1210 | bool "Pinned TLB for TEXT" | |
1211 | depends on PIN_TLB | |
1212 | default y | |
14cf11af PM |
1213 | endmenu |
1214 | ||
cabb5587 | 1215 | if PPC64 |
bdbc29c1 | 1216 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1217 | config PAGE_OFFSET |
1218 | hex | |
1219 | default "0xc000000000000000" | |
cabb5587 SR |
1220 | config KERNEL_START |
1221 | hex | |
eeb2d218 | 1222 | default "0xc000000000000000" |
37dd2bad KG |
1223 | config PHYSICAL_START |
1224 | hex | |
37dd2bad | 1225 | default "0x00000000" |
cabb5587 SR |
1226 | endif |
1227 | ||
a4da0d50 ME |
1228 | config ARCH_RANDOM |
1229 | def_bool n | |
1230 | ||
14cf11af PM |
1231 | source "net/Kconfig" |
1232 | ||
1233 | source "drivers/Kconfig" | |
1234 | ||
1235 | source "fs/Kconfig" | |
1236 | ||
14cf11af PM |
1237 | source "lib/Kconfig" |
1238 | ||
14cf11af PM |
1239 | source "arch/powerpc/Kconfig.debug" |
1240 | ||
1241 | source "security/Kconfig" | |
1242 | ||
14cf11af | 1243 | source "crypto/Kconfig" |
6f668280 | 1244 | |
1088a209 SM |
1245 | config PPC_LIB_RHEAP |
1246 | bool | |
1247 | ||
bbf45ba5 | 1248 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1249 | |
1250 | source "kernel/livepatch/Kconfig" |