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 | |
190 | select HAVE_DMA_API_DEBUG | |
2b79d696 | 191 | select HAVE_DYNAMIC_FTRACE |
a7d2475a ME |
192 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL |
193 | select HAVE_EBPF_JIT if PPC64 | |
194 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU) | |
195 | select HAVE_FTRACE_MCOUNT_RECORD | |
60ce8f72 | 196 | select HAVE_FUNCTION_GRAPH_TRACER |
a7d2475a | 197 | select HAVE_FUNCTION_TRACER |
65c059bc | 198 | select HAVE_GCC_PLUGINS |
e585513b | 199 | select HAVE_GENERIC_GUP |
a7d2475a | 200 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) |
ec7748b5 | 201 | select HAVE_IDE |
a1f242ff | 202 | select HAVE_IOREMAP_PROT |
a7d2475a ME |
203 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
204 | select HAVE_KERNEL_GZIP | |
3f550096 | 205 | select HAVE_KPROBES |
ead514d5 | 206 | select HAVE_KPROBES_ON_FTRACE |
9edddaa2 | 207 | select HAVE_KRETPROBES |
a7d2475a | 208 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
95f72d1e | 209 | select HAVE_MEMBLOCK |
1d7cfe18 | 210 | select HAVE_MEMBLOCK_NODE_MAP |
a7d2475a | 211 | select HAVE_MOD_ARCH_SPECIFIC |
2104180a NP |
212 | select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) |
213 | select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S) | |
4e491d14 | 214 | select HAVE_OPROFILE |
a7d2475a | 215 | select HAVE_OPTPROBES if PPC64 |
cdd6c482 | 216 | select HAVE_PERF_EVENTS |
a7d2475a | 217 | select HAVE_PERF_EVENTS_NMI if PPC64 |
92e5aae4 | 218 | select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH |
ed4a4ef8 | 219 | select HAVE_PERF_REGS |
17ed7c38 | 220 | select HAVE_PERF_USER_STACK_DUMP |
a7d2475a | 221 | select HAVE_RCU_TABLE_FREE if SMP |
359e4284 | 222 | select HAVE_REGS_AND_STACK_ACCESS_API |
a7d2475a ME |
223 | select HAVE_SYSCALL_TRACEPOINTS |
224 | select HAVE_VIRT_CPU_ACCOUNTING | |
518470fe | 225 | select HAVE_IRQ_TIME_ACCOUNTING |
cc79ca69 | 226 | select IRQ_DOMAIN |
e8d2c473 | 227 | select IRQ_FORCED_THREADING |
786d35d4 | 228 | select MODULES_USE_ELF_RELA |
10239733 | 229 | select NO_BOOTMEM |
a7d2475a ME |
230 | select OF |
231 | select OF_EARLY_FLATTREE | |
232 | select OF_RESERVED_MEM | |
233 | select OLD_SIGACTION if PPC32 | |
234 | select OLD_SIGSUSPEND | |
235 | select SPARSE_IRQ | |
236 | select SYSCTL_EXCEPTION_TRACE | |
237 | select VIRT_TO_BUS if !PPC64 | |
238 | # | |
239 | # Please keep this list sorted alphabetically. | |
240 | # | |
14cf11af | 241 | |
7a332b0c | 242 | config GENERIC_CSUM |
d4fde568 | 243 | def_bool n |
7a332b0c | 244 | |
14cf11af PM |
245 | config EARLY_PRINTK |
246 | bool | |
51d3082f | 247 | default y |
14cf11af | 248 | |
b71d47c1 JB |
249 | config PANIC_TIMEOUT |
250 | int | |
251 | default 180 | |
252 | ||
14cf11af PM |
253 | config COMPAT |
254 | bool | |
255 | default y if PPC64 | |
01e31dba | 256 | select COMPAT_BINFMT_ELF |
48b25c43 | 257 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 258 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
259 | |
260 | config SYSVIPC_COMPAT | |
261 | bool | |
262 | depends on COMPAT && SYSVIPC | |
263 | default y | |
264 | ||
265 | # All PPC32s use generic nvram driver through ppc_md | |
266 | config GENERIC_NVRAM | |
267 | bool | |
268 | default y if PPC32 | |
269 | ||
ae1e9130 | 270 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
271 | bool |
272 | default y | |
273 | ||
274 | config ARCH_MAY_HAVE_PC_FDC | |
275 | bool | |
3484a31f | 276 | default PCI |
14cf11af | 277 | |
08264cbc KG |
278 | config PPC_UDBG_16550 |
279 | bool | |
280 | default n | |
281 | ||
08264cbc KG |
282 | config GENERIC_TBSYNC |
283 | bool | |
284 | default y if PPC32 && SMP | |
285 | default n | |
286 | ||
e65e1fc2 AV |
287 | config AUDIT_ARCH |
288 | bool | |
289 | default y | |
290 | ||
73c9ceab JF |
291 | config GENERIC_BUG |
292 | bool | |
293 | default y | |
294 | depends on BUG | |
295 | ||
b3028878 | 296 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 297 | default y if PMAC_APM_EMU |
b3028878 JB |
298 | bool |
299 | ||
6c5b59b9 DG |
300 | config EPAPR_BOOT |
301 | bool | |
302 | help | |
303 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
304 | default n | |
305 | ||
f4fc4a5b KG |
306 | config DEFAULT_UIMAGE |
307 | bool | |
308 | help | |
309 | Used to allow a board to specify it wants a uImage built by default | |
310 | default n | |
311 | ||
801e4062 JB |
312 | config ARCH_HIBERNATION_POSSIBLE |
313 | bool | |
543b9fd3 JB |
314 | default y |
315 | ||
f4cb5700 JB |
316 | config ARCH_SUSPEND_POSSIBLE |
317 | def_bool y | |
4ffd6952 | 318 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
319 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
320 | || 44x || 40x | |
f4cb5700 | 321 | |
4c75a6f4 BH |
322 | config PPC_DCR_NATIVE |
323 | bool | |
324 | default n | |
325 | ||
326 | config PPC_DCR_MMIO | |
327 | bool | |
328 | default n | |
329 | ||
330 | config PPC_DCR | |
331 | bool | |
332 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
333 | default y | |
334 | ||
4c9d2800 BH |
335 | config PPC_OF_PLATFORM_PCI |
336 | bool | |
373a6da1 | 337 | depends on PCI |
4c9d2800 BH |
338 | depends on PPC64 # not supported on 32 bits yet |
339 | default n | |
340 | ||
6a11f75b | 341 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
4e003747 | 342 | depends on PPC32 || PPC_BOOK3S_64 |
6a11f75b AM |
343 | def_bool y |
344 | ||
8b7b80b9 AM |
345 | config ARCH_SUPPORTS_UPROBES |
346 | def_bool y | |
347 | ||
172ae2e7 DK |
348 | config PPC_ADV_DEBUG_REGS |
349 | bool | |
350 | depends on 40x || BOOKE | |
351 | default y | |
352 | ||
353 | config PPC_ADV_DEBUG_IACS | |
354 | int | |
355 | depends on PPC_ADV_DEBUG_REGS | |
356 | default 4 if 44x | |
357 | default 2 | |
358 | ||
359 | config PPC_ADV_DEBUG_DACS | |
360 | int | |
361 | depends on PPC_ADV_DEBUG_REGS | |
362 | default 2 | |
363 | ||
364 | config PPC_ADV_DEBUG_DVCS | |
365 | int | |
366 | depends on PPC_ADV_DEBUG_REGS | |
367 | default 2 if 44x | |
368 | default 0 | |
369 | ||
370 | config PPC_ADV_DEBUG_DAC_RANGE | |
371 | bool | |
372 | depends on PPC_ADV_DEBUG_REGS && 44x | |
373 | default y | |
374 | ||
1c98025c SW |
375 | config ZONE_DMA32 |
376 | bool | |
377 | default y if PPC64 | |
378 | ||
06ef42a1 KS |
379 | config PGTABLE_LEVELS |
380 | int | |
381 | default 2 if !PPC64 | |
368ced78 | 382 | default 3 if PPC_64K_PAGES && !PPC_BOOK3S_64 |
06ef42a1 KS |
383 | default 4 |
384 | ||
14cf11af PM |
385 | source "init/Kconfig" |
386 | ||
dc52ddc0 MH |
387 | source "kernel/Kconfig.freezer" |
388 | ||
a2d2e1ec | 389 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 390 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 391 | |
14cf11af PM |
392 | menu "Kernel options" |
393 | ||
394 | config HIGHMEM | |
395 | bool "High memory support" | |
396 | depends on PPC32 | |
397 | ||
398 | source kernel/Kconfig.hz | |
399 | source kernel/Kconfig.preempt | |
400 | source "fs/Kconfig.binfmt" | |
401 | ||
ba72cb8c MG |
402 | config HUGETLB_PAGE_SIZE_VARIABLE |
403 | bool | |
404 | depends on HUGETLB_PAGE | |
405 | default y | |
406 | ||
14cf11af PM |
407 | config MATH_EMULATION |
408 | bool "Math emulation" | |
968159c0 | 409 | depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
410 | ---help--- |
411 | Some PowerPC chips designed for embedded applications do not have | |
412 | a floating-point unit and therefore do not implement the | |
413 | floating-point instructions in the PowerPC instruction set. If you | |
414 | say Y here, the kernel will include code to emulate a floating-point | |
415 | unit, which will allow programs that use floating-point | |
416 | instructions to run. | |
417 | ||
4e63f8ed BH |
418 | This is also useful to emulate missing (optional) instructions |
419 | such as fsqrt on cores that do have an FPU but do not implement | |
420 | them (such as Freescale BookE). | |
421 | ||
e05c0e81 KH |
422 | choice |
423 | prompt "Math emulation options" | |
424 | default MATH_EMULATION_FULL | |
425 | depends on MATH_EMULATION | |
426 | ||
427 | config MATH_EMULATION_FULL | |
428 | bool "Emulate all the floating point instructions" | |
429 | ---help--- | |
430 | Select this option will enable the kernel to support to emulate | |
431 | all the floating point instructions. If your SoC doesn't have | |
432 | a FPU, you should select this. | |
433 | ||
434 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
435 | bool "Just emulate the FPU unimplemented instructions" | |
436 | ---help--- | |
437 | Select this if you know there does have a hardware FPU on your | |
438 | SoC, but some floating point instructions are not implemented by that. | |
439 | ||
440 | endchoice | |
441 | ||
3d72bbc4 MN |
442 | config PPC_TRANSACTIONAL_MEM |
443 | bool "Transactional Memory support for POWERPC" | |
444 | depends on PPC_BOOK3S_64 | |
445 | depends on SMP | |
7b37a123 MN |
446 | select ALTIVEC |
447 | select VSX | |
3d72bbc4 MN |
448 | default n |
449 | ---help--- | |
450 | Support user-mode Transactional Memory on POWERPC. | |
451 | ||
951eedeb NP |
452 | config LD_HEAD_STUB_CATCH |
453 | bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT | |
454 | depends on PPC64 | |
455 | default n | |
456 | help | |
457 | Very large kernels can cause linker branch stubs to be generated by | |
458 | code in head_64.S, which moves the head text sections out of their | |
459 | specified location. This option can work around the problem. | |
460 | ||
461 | If unsure, say "N". | |
462 | ||
8c50b72a TD |
463 | config DISABLE_MPROFILE_KERNEL |
464 | bool "Disable use of mprofile-kernel for kernel tracing" | |
465 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
466 | default y | |
467 | help | |
468 | Selecting this options disables use of the mprofile-kernel ABI for | |
469 | kernel tracing. That will cause options such as live patching | |
470 | (CONFIG_LIVEPATCH) which depend on CONFIG_DYNAMIC_FTRACE_WITH_REGS to | |
471 | be disabled also. | |
472 | ||
473 | If you have a toolchain which supports mprofile-kernel, then you can | |
496e9cb5 AB |
474 | disable this. Otherwise leave it enabled. If you're not sure, say |
475 | "Y". | |
8c50b72a TD |
476 | |
477 | config MPROFILE_KERNEL | |
478 | depends on PPC64 && CPU_LITTLE_ENDIAN | |
479 | def_bool !DISABLE_MPROFILE_KERNEL | |
480 | ||
fb3475e9 FT |
481 | config IOMMU_HELPER |
482 | def_bool PPC64 | |
483 | ||
ec3cf2ec BB |
484 | config SWIOTLB |
485 | bool "SWIOTLB support" | |
486 | default n | |
487 | select IOMMU_HELPER | |
488 | ---help--- | |
489 | Support for IO bounce buffering for systems without an IOMMU. | |
490 | This allows us to DMA to the full physical address space on | |
491 | platforms where the size of a physical address is larger | |
492 | than the bus address. Not all platforms support this. | |
493 | ||
14cf11af PM |
494 | config HOTPLUG_CPU |
495 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 496 | depends on SMP && (PPC_PSERIES || \ |
2f4f1f81 | 497 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
14cf11af PM |
498 | ---help--- |
499 | Say Y here to be able to disable and re-enable individual | |
500 | CPUs at runtime on SMP machines. | |
501 | ||
502 | Say N if you are unsure. | |
503 | ||
12633e80 NF |
504 | config ARCH_CPU_PROBE_RELEASE |
505 | def_bool y | |
506 | depends on HOTPLUG_CPU | |
507 | ||
cc57637b YG |
508 | config ARCH_ENABLE_MEMORY_HOTPLUG |
509 | def_bool y | |
510 | ||
a99824f3 BP |
511 | config ARCH_HAS_WALK_MEMORY |
512 | def_bool y | |
513 | ||
1482471d BP |
514 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
515 | def_bool y | |
516 | ||
f2296a3d MS |
517 | config PPC64_SUPPORTS_MEMORY_FAILURE |
518 | bool "Add support for memory hwpoison" | |
519 | depends on PPC_BOOK3S_64 | |
520 | default "y" if PPC_POWERNV | |
521 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
522 | ||
14cf11af | 523 | config KEXEC |
642e56ff | 524 | bool "kexec system call" |
96eea642 | 525 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) || PPC_BOOK3E |
2965faa5 | 526 | select KEXEC_CORE |
14cf11af PM |
527 | help |
528 | kexec is a system call that implements the ability to shutdown your | |
529 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 530 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
531 | you can start any kernel with it, not just Linux. |
532 | ||
1f1332f7 | 533 | The name comes from the similarity to the exec system call. |
14cf11af PM |
534 | |
535 | It is an ongoing process to be certain the hardware in a machine | |
536 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
537 | initially work for you. As of this writing the exact hardware |
538 | interface is strongly in flux, so no good recommendation can be | |
539 | made. | |
14cf11af | 540 | |
80f60e50 TJB |
541 | config KEXEC_FILE |
542 | bool "kexec file based system call" | |
543 | select KEXEC_CORE | |
467d2782 | 544 | select HAVE_IMA_KEXEC |
80f60e50 TJB |
545 | select BUILD_BIN2C |
546 | depends on PPC64 | |
547 | depends on CRYPTO=y | |
548 | depends on CRYPTO_SHA256=y | |
549 | help | |
550 | This is a new version of the kexec system call. This call is | |
551 | file based and takes in file descriptors as system call arguments | |
552 | for kernel and initramfs as opposed to a list of segments as is the | |
553 | case for the older kexec call. | |
554 | ||
4c91bd6e KH |
555 | config RELOCATABLE |
556 | bool "Build a relocatable kernel" | |
084a275e | 557 | depends on PPC64 || (FLATMEM && (44x || FSL_BOOKE)) |
4c91bd6e | 558 | select NONSTATIC_KERNEL |
71810db2 | 559 | select MODULE_REL_CRCS if MODVERSIONS |
4c91bd6e KH |
560 | help |
561 | This builds a kernel image that is capable of running at the | |
562 | location the kernel is loaded at. For ppc32, there is no any | |
563 | alignment restrictions, and this feature is a superset of | |
564 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
565 | 16k-aligned base address. The kernel is linked as a | |
566 | position-independent executable (PIE) and contains dynamic relocations | |
567 | which are processed early in the bootup process. | |
568 | ||
569 | One use is for the kexec on panic case where the recovery kernel | |
570 | must live at a different physical address than the primary | |
571 | kernel. | |
572 | ||
573 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
574 | it has been loaded at and the compile time physical addresses | |
575 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
576 | setting can still be useful to bootwrappers that need to know the | |
577 | load address of the kernel (eg. u-boot/mkimage). | |
578 | ||
70839d20 NP |
579 | config RELOCATABLE_TEST |
580 | bool "Test relocatable kernel" | |
581 | depends on (PPC64 && RELOCATABLE) | |
582 | default n | |
583 | help | |
584 | This runs the relocatable kernel at the address it was initially | |
585 | loaded at, which tends to be non-zero and therefore test the | |
586 | relocation code. | |
587 | ||
e8625d46 | 588 | config CRASH_DUMP |
22bd0177 | 589 | bool "Build a dump capture kernel" |
47da4219 | 590 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
084a275e | 591 | select RELOCATABLE if PPC64 || 44x || FSL_BOOKE |
e8625d46 | 592 | help |
22bd0177 | 593 | Build a kernel suitable for use as a dump capture kernel. |
54622f10 MK |
594 | The same kernel binary can be used as production kernel and dump |
595 | capture kernel. | |
e8625d46 | 596 | |
eb39c880 MS |
597 | config FA_DUMP |
598 | bool "Firmware-assisted dump" | |
22bd0177 HB |
599 | depends on PPC64 && PPC_RTAS |
600 | select CRASH_CORE | |
601 | select CRASH_DUMP | |
242f271c | 602 | help |
eb39c880 MS |
603 | A robust mechanism to get reliable kernel crash dump with |
604 | assistance from firmware. This approach does not use kexec, | |
22bd0177 | 605 | instead firmware assists in booting the capture kernel |
eb39c880 MS |
606 | while preserving memory contents. Firmware-assisted dump |
607 | is meant to be a kdump replacement offering robustness and | |
608 | speed not possible without system firmware assistance. | |
242f271c MA |
609 | |
610 | If unsure, say "N" | |
611 | ||
14cf11af PM |
612 | config IRQ_ALL_CPUS |
613 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 614 | depends on SMP |
14cf11af PM |
615 | help |
616 | This option gives the kernel permission to distribute IRQs across | |
617 | multiple CPUs. Saying N here will route all IRQs to the first | |
618 | CPU. Generally saying Y is safe, although some problems have been | |
619 | reported with SMP Power Macintoshes with this option enabled. | |
620 | ||
ffa27b6b AW |
621 | config NUMA |
622 | bool "NUMA support" | |
623 | depends on PPC64 | |
624 | default y if SMP && PPC_PSERIES | |
625 | ||
c80d79d7 YG |
626 | config NODES_SHIFT |
627 | int | |
ea55bf29 | 628 | default "8" if PPC64 |
c80d79d7 YG |
629 | default "4" |
630 | depends on NEED_MULTIPLE_NODES | |
631 | ||
8c272261 NA |
632 | config USE_PERCPU_NUMA_NODE_ID |
633 | def_bool y | |
634 | depends on NUMA | |
635 | ||
64bb80d8 NA |
636 | config HAVE_MEMORYLESS_NODES |
637 | def_bool y | |
638 | depends on NUMA | |
639 | ||
14cf11af PM |
640 | config ARCH_SELECT_MEMORY_MODEL |
641 | def_bool y | |
642 | depends on PPC64 | |
643 | ||
644 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
645 | def_bool y |
646 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 647 | |
45fb6cea | 648 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 649 | def_bool y |
9100b205 | 650 | depends on PPC64 |
d29eff7b | 651 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 652 | |
45fb6cea | 653 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 654 | def_bool y |
7b3912f4 | 655 | depends on PPC_BOOK3S_64 |
14cf11af | 656 | |
5a1eb5c4 | 657 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 658 | bool |
5a1eb5c4 | 659 | |
f6853eb5 ME |
660 | config ILLEGAL_POINTER_VALUE |
661 | hex | |
662 | # This is roughly half way between the top of user space and the bottom | |
663 | # of kernel space, which seems about as good as we can get. | |
664 | default 0x5deadbeef0000000 if PPC64 | |
665 | default 0 | |
666 | ||
c67c3cb4 | 667 | source "mm/Kconfig" |
14cf11af | 668 | |
7e9191da MK |
669 | config ARCH_MEMORY_PROBE |
670 | def_bool y | |
671 | depends on MEMORY_HOTPLUG | |
672 | ||
75167957 AW |
673 | # Some NUMA nodes have memory ranges that span |
674 | # other nodes. Even though a pfn is valid and | |
675 | # between a node's start and end pfns, it may not | |
676 | # reside on that node. See memmap_init_zone() | |
677 | # for details. | |
678 | config NODES_SPAN_OTHER_NODES | |
679 | def_bool y | |
680 | depends on NEED_MULTIPLE_NODES | |
681 | ||
e1240122 YT |
682 | config STDBINUTILS |
683 | bool "Using standard binutils settings" | |
684 | depends on 44x | |
685 | default y | |
686 | help | |
687 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
688 | Note, that kernel will be able to run only those applications, | |
689 | which had been compiled using binutils later than 2.17.50.0.3 with | |
690 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
691 | the older binutils, you can patch them with a trivial patch, which | |
692 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
693 | ||
ca9153a3 IY |
694 | choice |
695 | prompt "Page size" | |
696 | default PPC_4K_PAGES | |
3c726f8d | 697 | help |
ca9153a3 IY |
698 | Select the kernel logical page size. Increasing the page size |
699 | will reduce software overhead at each page boundary, allow | |
700 | hardware prefetch mechanisms to be more effective, and allow | |
701 | larger dma transfers increasing IO efficiency and reducing | |
702 | overhead. However the utilization of memory will increase. | |
703 | For example, each cached file will using a multiple of the | |
704 | page size to hold its contents and the difference between the | |
705 | end of file and the end of page is wasted. | |
706 | ||
707 | Some dedicated systems, such as software raid serving with | |
708 | accelerated calculations, have shown significant increases. | |
709 | ||
710 | If you configure a 64 bit kernel for 64k pages but the | |
711 | processor does not support them, then the kernel will simulate | |
712 | them with 4k pages, loading them on demand, but with the | |
713 | reduced software overhead and larger internal fragmentation. | |
714 | For the 32 bit kernel, a large page option will not be offered | |
715 | unless it is supported by the configured processor. | |
716 | ||
717 | If unsure, choose 4K_PAGES. | |
718 | ||
719 | config PPC_4K_PAGES | |
720 | bool "4k page size" | |
19f97c98 | 721 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
722 | |
723 | config PPC_16K_PAGES | |
55f8b5b8 ME |
724 | bool "16k page size" |
725 | depends on 44x || PPC_8xx | |
ca9153a3 IY |
726 | |
727 | config PPC_64K_PAGES | |
55f8b5b8 | 728 | bool "64k page size" |
4e003747 | 729 | depends on !PPC_FSL_BOOK3E && (44x || PPC_BOOK3S_64 || PPC_BOOK3E_64) |
19f97c98 | 730 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 731 | |
e1240122 | 732 | config PPC_256K_PAGES |
55f8b5b8 ME |
733 | bool "256k page size" |
734 | depends on 44x && !STDBINUTILS | |
e1240122 YT |
735 | help |
736 | Make the page size 256k. | |
737 | ||
738 | As the ELF standard only requires alignment to support page | |
739 | sizes up to 64k, you will need to compile all of your user | |
740 | space applications with a non-standard binutils settings | |
741 | (see the STDBINUTILS description for details). | |
742 | ||
743 | Say N unless you know what you are doing. | |
744 | ||
ca9153a3 | 745 | endchoice |
3c726f8d | 746 | |
47613407 HM |
747 | config THREAD_SHIFT |
748 | int "Thread shift" if EXPERT | |
749 | range 13 15 | |
750 | default "15" if PPC_256K_PAGES | |
751 | default "14" if PPC64 | |
752 | default "13" | |
753 | help | |
754 | Used to define the stack size. The default is almost always what you | |
755 | want. Only change this if you know what you are doing. | |
756 | ||
53bcddb9 SR |
757 | config FORCE_MAX_ZONEORDER |
758 | int "Maximum zone order" | |
a7ee5395 | 759 | range 8 9 if PPC64 && PPC_64K_PAGES |
066c4b87 | 760 | default "9" if PPC64 && PPC_64K_PAGES |
d5a1e42c | 761 | range 13 13 if PPC64 && !PPC_64K_PAGES |
066c4b87 BH |
762 | default "13" if PPC64 && !PPC_64K_PAGES |
763 | range 9 64 if PPC32 && PPC_16K_PAGES | |
764 | default "9" if PPC32 && PPC_16K_PAGES | |
765 | range 7 64 if PPC32 && PPC_64K_PAGES | |
766 | default "7" if PPC32 && PPC_64K_PAGES | |
767 | range 5 64 if PPC32 && PPC_256K_PAGES | |
768 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 769 | range 11 64 |
53bcddb9 SR |
770 | default "11" |
771 | help | |
772 | The kernel memory allocator divides physically contiguous memory | |
773 | blocks into "zones", where each zone is a power of two number of | |
774 | pages. This option selects the largest power of two that the kernel | |
775 | keeps in the memory allocator. If you need to allocate very large | |
776 | blocks of physically contiguous memory, then you may need to | |
777 | increase this value. | |
778 | ||
779 | This config option is actually maximum order plus one. For example, | |
780 | a value of 11 means that the largest free memory block is 2^10 pages. | |
781 | ||
782 | The page size is not necessarily 4KB. For example, on 64-bit | |
783 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
784 | this in mind when choosing a value for this option. | |
785 | ||
fa28237c PM |
786 | config PPC_SUBPAGE_PROT |
787 | bool "Support setting protections for 4k subpages" | |
4e003747 | 788 | depends on PPC_BOOK3S_64 && PPC_64K_PAGES |
fa28237c PM |
789 | help |
790 | This option adds support for a system call to allow user programs | |
791 | to set access permissions (read/write, readonly, or no access) | |
792 | on the 4k subpages of each 64k page. | |
793 | ||
e83d0169 IM |
794 | config PPC_COPRO_BASE |
795 | bool | |
796 | default n | |
797 | ||
14cf11af PM |
798 | config SCHED_SMT |
799 | bool "SMT (Hyperthreading) scheduler support" | |
800 | depends on PPC64 && SMP | |
14cf11af PM |
801 | help |
802 | SMT scheduler support improves the CPU scheduler's decision making | |
803 | when dealing with POWER5 cpus at a cost of slightly increased | |
804 | overhead in some places. If unsure say N here. | |
805 | ||
b92a66a6 MN |
806 | config PPC_DENORMALISATION |
807 | bool "PowerPC denormalisation exception handling" | |
808 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 809 | default "y" if PPC_POWERNV |
b92a66a6 MN |
810 | ---help--- |
811 | Add support for handling denormalisation of single precision | |
812 | values. Useful for bare metal only. If unsure say Y here. | |
813 | ||
14cf11af PM |
814 | config CMDLINE_BOOL |
815 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
816 | |
817 | config CMDLINE | |
818 | string "Initial kernel command string" | |
819 | depends on CMDLINE_BOOL | |
820 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
821 | help | |
822 | On some platforms, there is currently no way for the boot loader to | |
823 | pass arguments to the kernel. For these platforms, you can supply | |
824 | some command-line options at build time by entering them here. In | |
825 | most cases you will need to specify the root device here. | |
826 | ||
eb3b80f6 SS |
827 | config CMDLINE_FORCE |
828 | bool "Always use the default kernel command string" | |
829 | depends on CMDLINE_BOOL | |
830 | help | |
831 | Always use the default kernel command string, even if the boot | |
832 | loader passes other arguments to the kernel. | |
833 | This is useful if you cannot or don't want to change the | |
834 | command-line options your boot loader passes to the kernel. | |
835 | ||
c356aa45 GL |
836 | config EXTRA_TARGETS |
837 | string "Additional default image types" | |
838 | help | |
839 | List additional targets to be built by the bootwrapper here (separated | |
840 | by spaces). This is useful for targets that depend of device tree | |
841 | files in the .dts directory. | |
842 | ||
843 | Targets in this list will be build as part of the default build | |
844 | target, or when the user does a 'make zImage' or a | |
845 | 'make zImage.initrd'. | |
846 | ||
847 | If unsure, leave blank | |
848 | ||
b28f5081 JB |
849 | config ARCH_WANTS_FREEZER_CONTROL |
850 | def_bool y | |
851 | depends on ADB_PMU | |
852 | ||
14cf11af | 853 | source kernel/power/Kconfig |
14cf11af PM |
854 | |
855 | config SECCOMP | |
856 | bool "Enable seccomp to safely compute untrusted bytecode" | |
857 | depends on PROC_FS | |
858 | default y | |
859 | help | |
860 | This kernel feature is useful for number crunching applications | |
861 | that may need to compute untrusted bytecode during their | |
862 | execution. By using pipes or other transports made available to | |
863 | the process as file descriptors supporting the read/write | |
864 | syscalls, it's possible to isolate those applications in | |
865 | their own address space using seccomp. Once seccomp is | |
866 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
867 | and the task is only allowed to execute a few safe syscalls | |
868 | defined by each seccomp mode. | |
869 | ||
870 | If unsure, say Y. Only embedded should say N here. | |
871 | ||
92e3da3c RP |
872 | config PPC_MEM_KEYS |
873 | prompt "PowerPC Memory Protection Keys" | |
874 | def_bool y | |
875 | depends on PPC_BOOK3S_64 | |
876 | select ARCH_USES_HIGH_VMA_FLAGS | |
877 | select ARCH_HAS_PKEYS | |
878 | help | |
879 | Memory Protection Keys provides a mechanism for enforcing | |
880 | page-based protections, but without requiring modification of the | |
881 | page tables when an application changes protection domains. | |
882 | ||
883 | For details, see Documentation/vm/protection-keys.txt | |
884 | ||
885 | If unsure, say y. | |
886 | ||
14cf11af PM |
887 | endmenu |
888 | ||
889 | config ISA_DMA_API | |
890 | bool | |
3d066d77 | 891 | default PCI |
14cf11af PM |
892 | |
893 | menu "Bus options" | |
894 | ||
895 | config ISA | |
896 | bool "Support for ISA-bus hardware" | |
933ee711 | 897 | depends on PPC_CHRP |
f9bd170a | 898 | select PPC_I8259 |
14cf11af PM |
899 | help |
900 | Find out whether you have ISA slots on your motherboard. ISA is the | |
901 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
902 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
903 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
904 | embedded board, consult your board documentation. | |
14cf11af | 905 | |
5ac6da66 CL |
906 | config ZONE_DMA |
907 | bool | |
908 | default y | |
909 | ||
af407c6d FT |
910 | config NEED_DMA_MAP_STATE |
911 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
912 | ||
e32205eb FT |
913 | config NEED_SG_DMA_LENGTH |
914 | def_bool y | |
915 | ||
14cf11af PM |
916 | config GENERIC_ISA_DMA |
917 | bool | |
1927445a | 918 | depends on ISA_DMA_API |
14cf11af PM |
919 | default y |
920 | ||
25635c71 PM |
921 | config PPC_INDIRECT_PCI |
922 | bool | |
923 | depends on PCI | |
63dafe57 | 924 | default y if 40x || 44x |
25635c71 PM |
925 | default n |
926 | ||
14cf11af PM |
927 | config EISA |
928 | bool | |
929 | ||
930 | config SBUS | |
931 | bool | |
932 | ||
08264cbc KG |
933 | config FSL_SOC |
934 | bool | |
935 | ||
55c44991 RZ |
936 | config FSL_PCI |
937 | bool | |
938 | select PPC_INDIRECT_PCI | |
d0839118 | 939 | select PCI_QUIRKS |
55c44991 | 940 | |
4ffd6952 AV |
941 | config FSL_PMC |
942 | bool | |
943 | default y | |
944 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
945 | help | |
946 | Freescale MPC85xx/MPC86xx power management controller support | |
947 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
948 | ||
d164f6d4 VG |
949 | config PPC4xx_CPM |
950 | bool | |
951 | default y | |
952 | depends on SUSPEND && (44x || 40x) | |
953 | help | |
954 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
955 | It also enables support for two different idle states (idle-wait | |
956 | and idle-doze). | |
957 | ||
2a706919 SR |
958 | config 4xx_SOC |
959 | bool | |
960 | ||
acaa7aa3 | 961 | config FSL_LBC |
3ab8f2a2 | 962 | bool "Freescale Local Bus support" |
acaa7aa3 | 963 | help |
3ab8f2a2 RZ |
964 | Enables reporting of errors from the Freescale local bus |
965 | controller. Also contains some common code used by | |
966 | drivers for specific local bus peripherals. | |
acaa7aa3 | 967 | |
83ff9dcf AV |
968 | config FSL_GTM |
969 | bool | |
970 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
971 | help | |
972 | Freescale General-purpose Timers support | |
973 | ||
14cf11af PM |
974 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
975 | config MCA | |
976 | bool | |
977 | ||
b500563b JR |
978 | # Platforms that what PCI turned unconditionally just do select PCI |
979 | # in their config node. Platforms that want to choose at config | |
980 | # time should select PPC_PCI_CHOICE | |
981 | config PPC_PCI_CHOICE | |
982 | bool | |
983 | ||
14cf11af | 984 | config PCI |
b500563b | 985 | bool "PCI support" if PPC_PCI_CHOICE |
968159c0 | 986 | default y if !40x && !CPM2 && !PPC_8xx && !PPC_83xx \ |
bcc48591 | 987 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
e9599866 | 988 | default PCI_QSPAN if PPC_8xx |
335b8cf7 | 989 | select GENERIC_PCI_IOMAP |
14cf11af PM |
990 | help |
991 | Find out whether your system includes a PCI bus. PCI is the name of | |
992 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
993 | your box. If you say Y here, the kernel will include drivers and | |
994 | infrastructure code to support PCI bus devices. | |
995 | ||
996 | config PCI_DOMAINS | |
36e23590 MW |
997 | def_bool PCI |
998 | ||
999 | config PCI_SYSCALL | |
1000 | def_bool PCI | |
14cf11af | 1001 | |
14cf11af PM |
1002 | config PCI_QSPAN |
1003 | bool "QSpan PCI" | |
e9599866 | 1004 | depends on PPC_8xx |
f9bd170a | 1005 | select PPC_I8259 |
14cf11af PM |
1006 | help |
1007 | Say Y here if you have a system based on a Motorola 8xx-series | |
1008 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
1009 | ||
1010 | config PCI_8260 | |
1011 | bool | |
1012 | depends on PCI && 8260 | |
25635c71 | 1013 | select PPC_INDIRECT_PCI |
14cf11af PM |
1014 | default y |
1015 | ||
14cf11af PM |
1016 | source "drivers/pci/Kconfig" |
1017 | ||
1018 | source "drivers/pcmcia/Kconfig" | |
1019 | ||
f1f389d5 ZW |
1020 | config HAS_RAPIDIO |
1021 | bool | |
1022 | default n | |
1023 | ||
1024 | config RAPIDIO | |
56abde72 | 1025 | tristate "RapidIO support" |
388b78ad | 1026 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
1027 | help |
1028 | If you say Y here, the kernel will include drivers and | |
1029 | infrastructure code to support RapidIO interconnect devices. | |
1030 | ||
388b78ad AB |
1031 | config FSL_RIO |
1032 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 1033 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
1034 | default "n" |
1035 | ---help--- | |
1036 | Include support for RapidIO controller on Freescale embedded | |
1037 | processors (MPC8548, MPC8641, etc). | |
1038 | ||
f1f389d5 ZW |
1039 | source "drivers/rapidio/Kconfig" |
1040 | ||
14cf11af PM |
1041 | endmenu |
1042 | ||
0f890c8d SP |
1043 | config NONSTATIC_KERNEL |
1044 | bool | |
1045 | default n | |
1046 | ||
14cf11af PM |
1047 | menu "Advanced setup" |
1048 | depends on PPC32 | |
1049 | ||
1050 | config ADVANCED_OPTIONS | |
1051 | bool "Prompt for advanced kernel configuration options" | |
1052 | help | |
1053 | This option will enable prompting for a variety of advanced kernel | |
1054 | configuration options. These options can cause the kernel to not | |
1055 | work if they are set incorrectly, but can be used to optimize certain | |
1056 | aspects of kernel memory management. | |
1057 | ||
1058 | Unless you know what you are doing, say N here. | |
1059 | ||
1060 | comment "Default settings for advanced configuration options are used" | |
1061 | depends on !ADVANCED_OPTIONS | |
1062 | ||
14cf11af PM |
1063 | config LOWMEM_SIZE_BOOL |
1064 | bool "Set maximum low memory" | |
1065 | depends on ADVANCED_OPTIONS | |
1066 | help | |
1067 | This option allows you to set the maximum amount of memory which | |
1068 | will be used as "low memory", that is, memory which the kernel can | |
1069 | access directly, without having to set up a kernel virtual mapping. | |
1070 | This can be useful in optimizing the layout of kernel virtual | |
1071 | memory. | |
1072 | ||
1073 | Say N here unless you know what you are doing. | |
1074 | ||
1075 | config LOWMEM_SIZE | |
1076 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1077 | default "0x30000000" | |
1078 | ||
96051465 TP |
1079 | config LOWMEM_CAM_NUM_BOOL |
1080 | bool "Set number of CAMs to use to map low memory" | |
1081 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
1082 | help | |
1083 | This option allows you to set the maximum number of CAM slots that | |
1084 | will be used to map low memory. There are a limited number of slots | |
1085 | available and even more limited number that will fit in the L1 MMU. | |
1086 | However, using more entries will allow mapping more low memory. This | |
1087 | can be useful in optimizing the layout of kernel virtual memory. | |
1088 | ||
1089 | Say N here unless you know what you are doing. | |
1090 | ||
1091 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 1092 | depends on FSL_BOOKE |
96051465 TP |
1093 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
1094 | default 3 | |
1095 | ||
0f890c8d | 1096 | config DYNAMIC_MEMSTART |
642e56ff KC |
1097 | bool "Enable page aligned dynamic load address for kernel" |
1098 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
1099 | select NONSTATIC_KERNEL |
1100 | help | |
1101 | This option enables the kernel to be loaded at any page aligned | |
1102 | physical address. The kernel creates a mapping from KERNELBASE to | |
1103 | the address where the kernel is loaded. The page size here implies | |
1104 | the TLB page size of the mapping for kernel on the particular platform. | |
1105 | Please refer to the init code for finding the TLB page size. | |
1106 | ||
1107 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1108 | kernel image, where the only restriction is the page aligned kernel | |
1109 | load address. When this option is enabled, the compile time physical | |
1110 | address CONFIG_PHYSICAL_START is ignored. | |
1111 | ||
9c5f7d39 SP |
1112 | This option is overridden by CONFIG_RELOCATABLE |
1113 | ||
37dd2bad KG |
1114 | config PAGE_OFFSET_BOOL |
1115 | bool "Set custom page offset address" | |
1116 | depends on ADVANCED_OPTIONS | |
1117 | help | |
1118 | This option allows you to set the kernel virtual address at which | |
1119 | the kernel will map low memory. This can be useful in optimizing | |
1120 | the virtual memory layout of the system. | |
1121 | ||
1122 | Say N here unless you know what you are doing. | |
1123 | ||
1124 | config PAGE_OFFSET | |
1125 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1126 | default "0xc0000000" | |
1127 | ||
14cf11af PM |
1128 | config KERNEL_START_BOOL |
1129 | bool "Set custom kernel base address" | |
1130 | depends on ADVANCED_OPTIONS | |
1131 | help | |
1132 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1133 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1134 | however there are times (like kdump) that one might not want them | |
1135 | to be the same. | |
14cf11af PM |
1136 | |
1137 | Say N here unless you know what you are doing. | |
1138 | ||
1139 | config KERNEL_START | |
1140 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1141 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1142 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1143 | default "0xc0000000" |
1144 | ||
37dd2bad KG |
1145 | config PHYSICAL_START_BOOL |
1146 | bool "Set physical address where the kernel is loaded" | |
1147 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
1148 | help | |
1149 | This gives the physical address where the kernel is loaded. | |
1150 | ||
1151 | Say N here unless you know what you are doing. | |
1152 | ||
1153 | config PHYSICAL_START | |
1154 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 1155 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1156 | default "0x00000000" |
1157 | ||
1158 | config PHYSICAL_ALIGN | |
1159 | hex | |
c8f3570b | 1160 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
1161 | help |
1162 | This value puts the alignment restrictions on physical address | |
1163 | where kernel is loaded and run from. Kernel is compiled for an | |
1164 | address which meets above alignment restriction. | |
1165 | ||
14cf11af PM |
1166 | config TASK_SIZE_BOOL |
1167 | bool "Set custom user task size" | |
1168 | depends on ADVANCED_OPTIONS | |
1169 | help | |
1170 | This option allows you to set the amount of virtual address space | |
1171 | allocated to user tasks. This can be useful in optimizing the | |
1172 | virtual memory layout of the system. | |
1173 | ||
1174 | Say N here unless you know what you are doing. | |
1175 | ||
1176 | config TASK_SIZE | |
1177 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1178 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1179 | default "0xc0000000" |
14cf11af | 1180 | |
84532a0f BH |
1181 | config CONSISTENT_SIZE_BOOL |
1182 | bool "Set custom consistent memory pool size" | |
1183 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1184 | help | |
1185 | This option allows you to set the size of the | |
1186 | consistent memory pool. This pool of virtual memory | |
1187 | is used to make consistent memory allocations. | |
1188 | ||
1189 | config CONSISTENT_SIZE | |
1190 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1191 | default "0x00200000" if NOT_COHERENT_CACHE | |
1192 | ||
14cf11af PM |
1193 | config PIN_TLB |
1194 | bool "Pinned Kernel TLBs (860 ONLY)" | |
87be3e2d CL |
1195 | depends on ADVANCED_OPTIONS && PPC_8xx && \ |
1196 | !DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX | |
62f64b49 | 1197 | |
a3059b0c CL |
1198 | config PIN_TLB_DATA |
1199 | bool "Pinned TLB for DATA" | |
1200 | depends on PIN_TLB | |
1201 | default y | |
62f64b49 CL |
1202 | |
1203 | config PIN_TLB_IMMR | |
1204 | bool "Pinned TLB for IMMR" | |
1205 | depends on PIN_TLB | |
1206 | default y | |
a3059b0c CL |
1207 | |
1208 | config PIN_TLB_TEXT | |
1209 | bool "Pinned TLB for TEXT" | |
1210 | depends on PIN_TLB | |
1211 | default y | |
14cf11af PM |
1212 | endmenu |
1213 | ||
cabb5587 | 1214 | if PPC64 |
bdbc29c1 | 1215 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1216 | config PAGE_OFFSET |
1217 | hex | |
1218 | default "0xc000000000000000" | |
cabb5587 SR |
1219 | config KERNEL_START |
1220 | hex | |
eeb2d218 | 1221 | default "0xc000000000000000" |
37dd2bad KG |
1222 | config PHYSICAL_START |
1223 | hex | |
37dd2bad | 1224 | default "0x00000000" |
cabb5587 SR |
1225 | endif |
1226 | ||
a4da0d50 ME |
1227 | config ARCH_RANDOM |
1228 | def_bool n | |
1229 | ||
14cf11af PM |
1230 | source "net/Kconfig" |
1231 | ||
1232 | source "drivers/Kconfig" | |
1233 | ||
1234 | source "fs/Kconfig" | |
1235 | ||
14cf11af PM |
1236 | source "lib/Kconfig" |
1237 | ||
14cf11af PM |
1238 | source "arch/powerpc/Kconfig.debug" |
1239 | ||
1240 | source "security/Kconfig" | |
1241 | ||
14cf11af | 1242 | source "crypto/Kconfig" |
6f668280 | 1243 | |
1088a209 SM |
1244 | config PPC_LIB_RHEAP |
1245 | bool | |
1246 | ||
bbf45ba5 | 1247 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1248 | |
1249 | source "kernel/livepatch/Kconfig" |