Commit | Line | Data |
---|---|---|
a0ae9c7c | 1 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 2 | |
14cf11af PM |
3 | config PPC32 |
4 | bool | |
5 | default y if !PPC64 | |
6 | ||
234a71a7 | 7 | config 32BIT |
8 | bool | |
9 | default y if PPC32 | |
10 | ||
14cf11af PM |
11 | config 64BIT |
12 | bool | |
13 | default y if PPC64 | |
14 | ||
2578bfae SR |
15 | config WORD_SIZE |
16 | int | |
17 | default 64 if PPC64 | |
18 | default 32 if !PPC64 | |
19 | ||
600715dc JF |
20 | config ARCH_PHYS_ADDR_T_64BIT |
21 | def_bool PPC64 || PHYS_64BIT | |
22 | ||
787d44ca FT |
23 | config ARCH_DMA_ADDR_T_64BIT |
24 | def_bool ARCH_PHYS_ADDR_T_64BIT | |
25 | ||
14cf11af PM |
26 | config MMU |
27 | bool | |
28 | default y | |
29 | ||
c2a7e818 | 30 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
31 | def_bool PPC64 |
32 | ||
c2a7e818 | 33 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 34 | def_bool PPC64 |
35 | ||
551b81f2 ME |
36 | config NR_IRQS |
37 | int "Number of virtual interrupt numbers" | |
859aefc5 | 38 | range 32 32768 |
551b81f2 ME |
39 | default "512" |
40 | help | |
41 | This defines the number of virtual interrupt numbers the kernel | |
42 | can manage. Virtual interrupt numbers are what you see in | |
43 | /proc/interrupts. If you configure your system to have too few, | |
44 | drivers will fail to load or worse - handle with care. | |
45 | ||
fd3e0bbc CH |
46 | config STACKTRACE_SUPPORT |
47 | bool | |
48 | default y | |
49 | ||
01f4b8b8 AB |
50 | config HAVE_LATENCYTOP_SUPPORT |
51 | def_bool y | |
52 | ||
945feb17 BH |
53 | config TRACE_IRQFLAGS_SUPPORT |
54 | bool | |
945feb17 BH |
55 | default y |
56 | ||
57 | config LOCKDEP_SUPPORT | |
58 | bool | |
59 | default y | |
60 | ||
14cf11af PM |
61 | config RWSEM_GENERIC_SPINLOCK |
62 | bool | |
63 | ||
64 | config RWSEM_XCHGADD_ALGORITHM | |
65 | bool | |
66 | default y | |
67 | ||
95c354fe NP |
68 | config GENERIC_LOCKBREAK |
69 | bool | |
70 | default y | |
71 | depends on SMP && PREEMPT | |
72 | ||
f0d1b0b3 DH |
73 | config ARCH_HAS_ILOG2_U32 |
74 | bool | |
ef55d53c | 75 | default y |
f0d1b0b3 DH |
76 | |
77 | config ARCH_HAS_ILOG2_U64 | |
78 | bool | |
ef55d53c | 79 | default y if 64BIT |
f0d1b0b3 | 80 | |
e779b2f9 AM |
81 | config GENERIC_HWEIGHT |
82 | bool | |
83 | default y | |
84 | ||
14cf11af PM |
85 | config PPC |
86 | bool | |
87 | default y | |
b7e7c37b | 88 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 89 | select ARCH_MIGHT_HAVE_PC_SERIO |
d812c0e1 | 90 | select BINFMT_ELF |
59994fb0 | 91 | select ARCH_BINFMT_ELF_RANDOMIZE_PIE |
10f85f43 | 92 | select OF |
e6ce1324 | 93 | select OF_EARLY_FLATTREE |
708b7eef | 94 | select OF_RESERVED_MEM |
2b79d696 SR |
95 | select HAVE_FTRACE_MCOUNT_RECORD |
96 | select HAVE_DYNAMIC_FTRACE | |
606576ce | 97 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 98 | select HAVE_FUNCTION_GRAPH_TRACER |
7ac57a89 | 99 | select SYSCTL_EXCEPTION_TRACE |
7444a72e | 100 | select ARCH_WANT_OPTIONAL_GPIOLIB |
4febd95a | 101 | select VIRT_TO_BUS if !PPC64 |
ec7748b5 | 102 | select HAVE_IDE |
a1f242ff | 103 | select HAVE_IOREMAP_PROT |
0b5e6661 | 104 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN |
3f550096 | 105 | select HAVE_KPROBES |
17ce452f | 106 | select HAVE_ARCH_KGDB |
9edddaa2 | 107 | select HAVE_KRETPROBES |
dec2b0d0 | 108 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 109 | select HAVE_MEMBLOCK |
1d7cfe18 | 110 | select HAVE_MEMBLOCK_NODE_MAP |
46bab4e4 | 111 | select HAVE_DMA_ATTRS |
80d3e8ab | 112 | select HAVE_DMA_API_DEBUG |
4e491d14 | 113 | select HAVE_OPROFILE |
b69ec42b | 114 | select HAVE_DEBUG_KMEMLEAK |
308c09f1 | 115 | select ARCH_HAS_SG_CHAIN |
c2e95c6d | 116 | select GENERIC_ATOMIC64 if PPC32 |
7463449b | 117 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
cdd6c482 | 118 | select HAVE_PERF_EVENTS |
359e4284 | 119 | select HAVE_REGS_AND_STACK_ACCESS_API |
5aae8a53 | 120 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
c1d7e01d | 121 | select ARCH_WANT_IPC_PARSE_VERSION |
ad5b7f13 | 122 | select SPARSE_IRQ |
cc79ca69 | 123 | select IRQ_DOMAIN |
433c9c67 TG |
124 | select GENERIC_IRQ_SHOW |
125 | select GENERIC_IRQ_SHOW_LEVEL | |
e8d2c473 | 126 | select IRQ_FORCED_THREADING |
26723911 | 127 | select HAVE_RCU_TABLE_FREE if SMP |
02424d89 | 128 | select HAVE_SYSCALL_TRACEPOINTS |
e47b65b0 | 129 | select HAVE_BPF_JIT if PPC64 |
ac5f89c7 | 130 | select HAVE_ARCH_JUMP_LABEL |
df013ffb | 131 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
957e3fac | 132 | select ARCH_HAS_GCOV_PROFILE_ALL |
17e32eac | 133 | select GENERIC_SMP_IDLE_THREAD |
b9ed27df | 134 | select GENERIC_CMOS_UPDATE |
70639421 | 135 | select GENERIC_TIME_VSYSCALL_OLD |
b9ed27df | 136 | select GENERIC_CLOCKEVENTS |
0d948730 PM |
137 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
138 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | |
1629372c PM |
139 | select GENERIC_STRNCPY_FROM_USER |
140 | select GENERIC_STRNLEN_USER | |
786d35d4 DH |
141 | select HAVE_MOD_ARCH_SPECIFIC |
142 | select MODULES_USE_ELF_RELA | |
0bcfe540 | 143 | select CLONE_BACKWARDS |
fe3955cb | 144 | select ARCH_USE_BUILTIN_BSWAP |
0980caea | 145 | select OLD_SIGSUSPEND |
09a4d5d0 | 146 | select OLD_SIGACTION if PPC32 |
d1a1dc0b | 147 | select HAVE_DEBUG_STACKOVERFLOW |
62d26c82 | 148 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
3405d230 | 149 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 |
7a017721 | 150 | select HAVE_ARCH_AUDITSYSCALL |
4badad35 | 151 | select ARCH_SUPPORTS_ATOMIC_RMW |
a75c380c | 152 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
10239733 | 153 | select NO_BOOTMEM |
b30e7590 | 154 | select HAVE_GENERIC_RCU_GUP |
14cf11af | 155 | |
7a332b0c AB |
156 | config GENERIC_CSUM |
157 | def_bool CPU_LITTLE_ENDIAN | |
158 | ||
14cf11af PM |
159 | config EARLY_PRINTK |
160 | bool | |
51d3082f | 161 | default y |
14cf11af | 162 | |
b71d47c1 JB |
163 | config PANIC_TIMEOUT |
164 | int | |
165 | default 180 | |
166 | ||
14cf11af PM |
167 | config COMPAT |
168 | bool | |
169 | default y if PPC64 | |
01e31dba | 170 | select COMPAT_BINFMT_ELF |
48b25c43 | 171 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 172 | select COMPAT_OLD_SIGACTION |
14cf11af PM |
173 | |
174 | config SYSVIPC_COMPAT | |
175 | bool | |
176 | depends on COMPAT && SYSVIPC | |
177 | default y | |
178 | ||
179 | # All PPC32s use generic nvram driver through ppc_md | |
180 | config GENERIC_NVRAM | |
181 | bool | |
182 | default y if PPC32 | |
183 | ||
ae1e9130 | 184 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
185 | bool |
186 | default y | |
187 | ||
188 | config ARCH_MAY_HAVE_PC_FDC | |
189 | bool | |
3484a31f | 190 | default PCI |
14cf11af | 191 | |
08264cbc KG |
192 | config PPC_OF |
193 | def_bool y | |
194 | ||
195 | config PPC_UDBG_16550 | |
196 | bool | |
197 | default n | |
198 | ||
08264cbc KG |
199 | config GENERIC_TBSYNC |
200 | bool | |
201 | default y if PPC32 && SMP | |
202 | default n | |
203 | ||
e65e1fc2 AV |
204 | config AUDIT_ARCH |
205 | bool | |
206 | default y | |
207 | ||
73c9ceab JF |
208 | config GENERIC_BUG |
209 | bool | |
210 | default y | |
211 | depends on BUG | |
212 | ||
b3028878 | 213 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 214 | default y if PMAC_APM_EMU |
b3028878 JB |
215 | bool |
216 | ||
6c5b59b9 DG |
217 | config EPAPR_BOOT |
218 | bool | |
219 | help | |
220 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
221 | default n | |
222 | ||
f4fc4a5b KG |
223 | config DEFAULT_UIMAGE |
224 | bool | |
225 | help | |
226 | Used to allow a board to specify it wants a uImage built by default | |
227 | default n | |
228 | ||
801e4062 JB |
229 | config ARCH_HIBERNATION_POSSIBLE |
230 | bool | |
543b9fd3 JB |
231 | default y |
232 | ||
f4cb5700 JB |
233 | config ARCH_SUSPEND_POSSIBLE |
234 | def_bool y | |
4ffd6952 | 235 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
236 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
237 | || 44x || 40x | |
f4cb5700 | 238 | |
4c75a6f4 BH |
239 | config PPC_DCR_NATIVE |
240 | bool | |
241 | default n | |
242 | ||
243 | config PPC_DCR_MMIO | |
244 | bool | |
245 | default n | |
246 | ||
247 | config PPC_DCR | |
248 | bool | |
249 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
250 | default y | |
251 | ||
4c9d2800 BH |
252 | config PPC_OF_PLATFORM_PCI |
253 | bool | |
373a6da1 | 254 | depends on PCI |
4c9d2800 BH |
255 | depends on PPC64 # not supported on 32 bits yet |
256 | default n | |
257 | ||
6a11f75b | 258 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
ce614c3c | 259 | depends on PPC32 || PPC_STD_MMU_64 |
6a11f75b AM |
260 | def_bool y |
261 | ||
8b7b80b9 AM |
262 | config ARCH_SUPPORTS_UPROBES |
263 | def_bool y | |
264 | ||
172ae2e7 DK |
265 | config PPC_ADV_DEBUG_REGS |
266 | bool | |
267 | depends on 40x || BOOKE | |
268 | default y | |
269 | ||
270 | config PPC_ADV_DEBUG_IACS | |
271 | int | |
272 | depends on PPC_ADV_DEBUG_REGS | |
273 | default 4 if 44x | |
274 | default 2 | |
275 | ||
276 | config PPC_ADV_DEBUG_DACS | |
277 | int | |
278 | depends on PPC_ADV_DEBUG_REGS | |
279 | default 2 | |
280 | ||
281 | config PPC_ADV_DEBUG_DVCS | |
282 | int | |
283 | depends on PPC_ADV_DEBUG_REGS | |
284 | default 2 if 44x | |
285 | default 0 | |
286 | ||
287 | config PPC_ADV_DEBUG_DAC_RANGE | |
288 | bool | |
289 | depends on PPC_ADV_DEBUG_REGS && 44x | |
290 | default y | |
291 | ||
5e249d45 SP |
292 | config PPC_EMULATE_SSTEP |
293 | bool | |
294 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT | |
295 | ||
1c98025c SW |
296 | config ZONE_DMA32 |
297 | bool | |
298 | default y if PPC64 | |
299 | ||
14cf11af PM |
300 | source "init/Kconfig" |
301 | ||
dc52ddc0 MH |
302 | source "kernel/Kconfig.freezer" |
303 | ||
a2d2e1ec | 304 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 305 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 306 | |
14cf11af PM |
307 | menu "Kernel options" |
308 | ||
309 | config HIGHMEM | |
310 | bool "High memory support" | |
311 | depends on PPC32 | |
312 | ||
313 | source kernel/Kconfig.hz | |
314 | source kernel/Kconfig.preempt | |
315 | source "fs/Kconfig.binfmt" | |
316 | ||
ba72cb8c MG |
317 | config HUGETLB_PAGE_SIZE_VARIABLE |
318 | bool | |
319 | depends on HUGETLB_PAGE | |
320 | default y | |
321 | ||
14cf11af PM |
322 | config MATH_EMULATION |
323 | bool "Math emulation" | |
4e63f8ed | 324 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
14cf11af PM |
325 | ---help--- |
326 | Some PowerPC chips designed for embedded applications do not have | |
327 | a floating-point unit and therefore do not implement the | |
328 | floating-point instructions in the PowerPC instruction set. If you | |
329 | say Y here, the kernel will include code to emulate a floating-point | |
330 | unit, which will allow programs that use floating-point | |
331 | instructions to run. | |
332 | ||
4e63f8ed BH |
333 | This is also useful to emulate missing (optional) instructions |
334 | such as fsqrt on cores that do have an FPU but do not implement | |
335 | them (such as Freescale BookE). | |
336 | ||
e05c0e81 KH |
337 | choice |
338 | prompt "Math emulation options" | |
339 | default MATH_EMULATION_FULL | |
340 | depends on MATH_EMULATION | |
341 | ||
342 | config MATH_EMULATION_FULL | |
343 | bool "Emulate all the floating point instructions" | |
344 | ---help--- | |
345 | Select this option will enable the kernel to support to emulate | |
346 | all the floating point instructions. If your SoC doesn't have | |
347 | a FPU, you should select this. | |
348 | ||
349 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
350 | bool "Just emulate the FPU unimplemented instructions" | |
351 | ---help--- | |
352 | Select this if you know there does have a hardware FPU on your | |
353 | SoC, but some floating point instructions are not implemented by that. | |
354 | ||
355 | endchoice | |
356 | ||
3d72bbc4 MN |
357 | config PPC_TRANSACTIONAL_MEM |
358 | bool "Transactional Memory support for POWERPC" | |
359 | depends on PPC_BOOK3S_64 | |
360 | depends on SMP | |
7b37a123 MN |
361 | select ALTIVEC |
362 | select VSX | |
3d72bbc4 MN |
363 | default n |
364 | ---help--- | |
365 | Support user-mode Transactional Memory on POWERPC. | |
366 | ||
fb3475e9 FT |
367 | config IOMMU_HELPER |
368 | def_bool PPC64 | |
369 | ||
ec3cf2ec BB |
370 | config SWIOTLB |
371 | bool "SWIOTLB support" | |
372 | default n | |
373 | select IOMMU_HELPER | |
374 | ---help--- | |
375 | Support for IO bounce buffering for systems without an IOMMU. | |
376 | This allows us to DMA to the full physical address space on | |
377 | platforms where the size of a physical address is larger | |
378 | than the bus address. Not all platforms support this. | |
379 | ||
14cf11af PM |
380 | config HOTPLUG_CPU |
381 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 382 | depends on SMP && (PPC_PSERIES || \ |
d0832a75 | 383 | PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) |
14cf11af PM |
384 | ---help--- |
385 | Say Y here to be able to disable and re-enable individual | |
386 | CPUs at runtime on SMP machines. | |
387 | ||
388 | Say N if you are unsure. | |
389 | ||
12633e80 NF |
390 | config ARCH_CPU_PROBE_RELEASE |
391 | def_bool y | |
392 | depends on HOTPLUG_CPU | |
393 | ||
cc57637b YG |
394 | config ARCH_ENABLE_MEMORY_HOTPLUG |
395 | def_bool y | |
396 | ||
a99824f3 BP |
397 | config ARCH_HAS_WALK_MEMORY |
398 | def_bool y | |
399 | ||
1482471d BP |
400 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
401 | def_bool y | |
402 | ||
f2296a3d MS |
403 | config PPC64_SUPPORTS_MEMORY_FAILURE |
404 | bool "Add support for memory hwpoison" | |
405 | depends on PPC_BOOK3S_64 | |
406 | default "y" if PPC_POWERNV | |
407 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
408 | ||
14cf11af | 409 | config KEXEC |
642e56ff KC |
410 | bool "kexec system call" |
411 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) | |
14cf11af PM |
412 | help |
413 | kexec is a system call that implements the ability to shutdown your | |
414 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 415 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
416 | you can start any kernel with it, not just Linux. |
417 | ||
1f1332f7 | 418 | The name comes from the similarity to the exec system call. |
14cf11af PM |
419 | |
420 | It is an ongoing process to be certain the hardware in a machine | |
421 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
422 | initially work for you. As of this writing the exact hardware |
423 | interface is strongly in flux, so no good recommendation can be | |
424 | made. | |
14cf11af | 425 | |
e8625d46 | 426 | config CRASH_DUMP |
3420b5da | 427 | bool "Build a kdump crash kernel" |
47da4219 | 428 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
fb43e847 | 429 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
e8625d46 HM |
430 | help |
431 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
432 | The same kernel binary can be used as production kernel and dump |
433 | capture kernel. | |
e8625d46 | 434 | |
eb39c880 MS |
435 | config FA_DUMP |
436 | bool "Firmware-assisted dump" | |
90890b1e | 437 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
242f271c | 438 | help |
eb39c880 MS |
439 | A robust mechanism to get reliable kernel crash dump with |
440 | assistance from firmware. This approach does not use kexec, | |
441 | instead firmware assists in booting the kdump kernel | |
442 | while preserving memory contents. Firmware-assisted dump | |
443 | is meant to be a kdump replacement offering robustness and | |
444 | speed not possible without system firmware assistance. | |
242f271c MA |
445 | |
446 | If unsure, say "N" | |
447 | ||
14cf11af PM |
448 | config IRQ_ALL_CPUS |
449 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 450 | depends on SMP |
14cf11af PM |
451 | help |
452 | This option gives the kernel permission to distribute IRQs across | |
453 | multiple CPUs. Saying N here will route all IRQs to the first | |
454 | CPU. Generally saying Y is safe, although some problems have been | |
455 | reported with SMP Power Macintoshes with this option enabled. | |
456 | ||
ffa27b6b AW |
457 | config NUMA |
458 | bool "NUMA support" | |
459 | depends on PPC64 | |
460 | default y if SMP && PPC_PSERIES | |
461 | ||
c80d79d7 YG |
462 | config NODES_SHIFT |
463 | int | |
ea55bf29 | 464 | default "8" if PPC64 |
c80d79d7 YG |
465 | default "4" |
466 | depends on NEED_MULTIPLE_NODES | |
467 | ||
8c272261 NA |
468 | config USE_PERCPU_NUMA_NODE_ID |
469 | def_bool y | |
470 | depends on NUMA | |
471 | ||
64bb80d8 NA |
472 | config HAVE_MEMORYLESS_NODES |
473 | def_bool y | |
474 | depends on NUMA | |
475 | ||
14cf11af PM |
476 | config ARCH_SELECT_MEMORY_MODEL |
477 | def_bool y | |
478 | depends on PPC64 | |
479 | ||
480 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
481 | def_bool y |
482 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 483 | |
45fb6cea | 484 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 485 | def_bool y |
9100b205 | 486 | depends on PPC64 |
d29eff7b | 487 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 488 | |
45fb6cea | 489 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 490 | def_bool y |
78bde53e | 491 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 492 | |
5a1eb5c4 | 493 | config SYS_SUPPORTS_HUGETLBFS |
41151e77 | 494 | bool |
5a1eb5c4 | 495 | |
c67c3cb4 | 496 | source "mm/Kconfig" |
14cf11af | 497 | |
7e9191da MK |
498 | config ARCH_MEMORY_PROBE |
499 | def_bool y | |
500 | depends on MEMORY_HOTPLUG | |
501 | ||
75167957 AW |
502 | # Some NUMA nodes have memory ranges that span |
503 | # other nodes. Even though a pfn is valid and | |
504 | # between a node's start and end pfns, it may not | |
505 | # reside on that node. See memmap_init_zone() | |
506 | # for details. | |
507 | config NODES_SPAN_OTHER_NODES | |
508 | def_bool y | |
509 | depends on NEED_MULTIPLE_NODES | |
510 | ||
16c2d476 BH |
511 | config PPC_HAS_HASH_64K |
512 | bool | |
513 | depends on PPC64 | |
514 | default n | |
515 | ||
e1240122 YT |
516 | config STDBINUTILS |
517 | bool "Using standard binutils settings" | |
518 | depends on 44x | |
519 | default y | |
520 | help | |
521 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
522 | Note, that kernel will be able to run only those applications, | |
523 | which had been compiled using binutils later than 2.17.50.0.3 with | |
524 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
525 | the older binutils, you can patch them with a trivial patch, which | |
526 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
527 | ||
ca9153a3 IY |
528 | choice |
529 | prompt "Page size" | |
530 | default PPC_4K_PAGES | |
3c726f8d | 531 | help |
ca9153a3 IY |
532 | Select the kernel logical page size. Increasing the page size |
533 | will reduce software overhead at each page boundary, allow | |
534 | hardware prefetch mechanisms to be more effective, and allow | |
535 | larger dma transfers increasing IO efficiency and reducing | |
536 | overhead. However the utilization of memory will increase. | |
537 | For example, each cached file will using a multiple of the | |
538 | page size to hold its contents and the difference between the | |
539 | end of file and the end of page is wasted. | |
540 | ||
541 | Some dedicated systems, such as software raid serving with | |
542 | accelerated calculations, have shown significant increases. | |
543 | ||
544 | If you configure a 64 bit kernel for 64k pages but the | |
545 | processor does not support them, then the kernel will simulate | |
546 | them with 4k pages, loading them on demand, but with the | |
547 | reduced software overhead and larger internal fragmentation. | |
548 | For the 32 bit kernel, a large page option will not be offered | |
549 | unless it is supported by the configured processor. | |
550 | ||
551 | If unsure, choose 4K_PAGES. | |
552 | ||
553 | config PPC_4K_PAGES | |
554 | bool "4k page size" | |
555 | ||
556 | config PPC_16K_PAGES | |
959d6173 | 557 | bool "16k page size" if 44x || PPC_8xx |
ca9153a3 IY |
558 | |
559 | config PPC_64K_PAGES | |
2d27cfd3 | 560 | bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 |
9841c79c | 561 | depends on !PPC_FSL_BOOK3E |
ca9153a3 IY |
562 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 |
563 | ||
e1240122 YT |
564 | config PPC_256K_PAGES |
565 | bool "256k page size" if 44x | |
adf213c4 | 566 | depends on !STDBINUTILS |
e1240122 YT |
567 | help |
568 | Make the page size 256k. | |
569 | ||
570 | As the ELF standard only requires alignment to support page | |
571 | sizes up to 64k, you will need to compile all of your user | |
572 | space applications with a non-standard binutils settings | |
573 | (see the STDBINUTILS description for details). | |
574 | ||
575 | Say N unless you know what you are doing. | |
576 | ||
ca9153a3 | 577 | endchoice |
3c726f8d | 578 | |
53bcddb9 SR |
579 | config FORCE_MAX_ZONEORDER |
580 | int "Maximum zone order" | |
066c4b87 BH |
581 | range 9 64 if PPC64 && PPC_64K_PAGES |
582 | default "9" if PPC64 && PPC_64K_PAGES | |
583 | range 13 64 if PPC64 && !PPC_64K_PAGES | |
584 | default "13" if PPC64 && !PPC_64K_PAGES | |
585 | range 9 64 if PPC32 && PPC_16K_PAGES | |
586 | default "9" if PPC32 && PPC_16K_PAGES | |
587 | range 7 64 if PPC32 && PPC_64K_PAGES | |
588 | default "7" if PPC32 && PPC_64K_PAGES | |
589 | range 5 64 if PPC32 && PPC_256K_PAGES | |
590 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 591 | range 11 64 |
53bcddb9 SR |
592 | default "11" |
593 | help | |
594 | The kernel memory allocator divides physically contiguous memory | |
595 | blocks into "zones", where each zone is a power of two number of | |
596 | pages. This option selects the largest power of two that the kernel | |
597 | keeps in the memory allocator. If you need to allocate very large | |
598 | blocks of physically contiguous memory, then you may need to | |
599 | increase this value. | |
600 | ||
601 | This config option is actually maximum order plus one. For example, | |
602 | a value of 11 means that the largest free memory block is 2^10 pages. | |
603 | ||
604 | The page size is not necessarily 4KB. For example, on 64-bit | |
605 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
606 | this in mind when choosing a value for this option. | |
607 | ||
fa28237c PM |
608 | config PPC_SUBPAGE_PROT |
609 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 610 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
611 | help |
612 | This option adds support for a system call to allow user programs | |
613 | to set access permissions (read/write, readonly, or no access) | |
614 | on the 4k subpages of each 64k page. | |
615 | ||
e83d0169 IM |
616 | config PPC_COPRO_BASE |
617 | bool | |
618 | default n | |
619 | ||
14cf11af PM |
620 | config SCHED_SMT |
621 | bool "SMT (Hyperthreading) scheduler support" | |
622 | depends on PPC64 && SMP | |
14cf11af PM |
623 | help |
624 | SMT scheduler support improves the CPU scheduler's decision making | |
625 | when dealing with POWER5 cpus at a cost of slightly increased | |
626 | overhead in some places. If unsure say N here. | |
627 | ||
b92a66a6 MN |
628 | config PPC_DENORMALISATION |
629 | bool "PowerPC denormalisation exception handling" | |
630 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 631 | default "y" if PPC_POWERNV |
b92a66a6 MN |
632 | ---help--- |
633 | Add support for handling denormalisation of single precision | |
634 | values. Useful for bare metal only. If unsure say Y here. | |
635 | ||
14cf11af PM |
636 | config CMDLINE_BOOL |
637 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
638 | |
639 | config CMDLINE | |
640 | string "Initial kernel command string" | |
641 | depends on CMDLINE_BOOL | |
642 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
643 | help | |
644 | On some platforms, there is currently no way for the boot loader to | |
645 | pass arguments to the kernel. For these platforms, you can supply | |
646 | some command-line options at build time by entering them here. In | |
647 | most cases you will need to specify the root device here. | |
648 | ||
eb3b80f6 SS |
649 | config CMDLINE_FORCE |
650 | bool "Always use the default kernel command string" | |
651 | depends on CMDLINE_BOOL | |
652 | help | |
653 | Always use the default kernel command string, even if the boot | |
654 | loader passes other arguments to the kernel. | |
655 | This is useful if you cannot or don't want to change the | |
656 | command-line options your boot loader passes to the kernel. | |
657 | ||
c356aa45 GL |
658 | config EXTRA_TARGETS |
659 | string "Additional default image types" | |
660 | help | |
661 | List additional targets to be built by the bootwrapper here (separated | |
662 | by spaces). This is useful for targets that depend of device tree | |
663 | files in the .dts directory. | |
664 | ||
665 | Targets in this list will be build as part of the default build | |
666 | target, or when the user does a 'make zImage' or a | |
667 | 'make zImage.initrd'. | |
668 | ||
669 | If unsure, leave blank | |
670 | ||
b28f5081 JB |
671 | config ARCH_WANTS_FREEZER_CONTROL |
672 | def_bool y | |
673 | depends on ADB_PMU | |
674 | ||
14cf11af | 675 | source kernel/power/Kconfig |
14cf11af PM |
676 | |
677 | config SECCOMP | |
678 | bool "Enable seccomp to safely compute untrusted bytecode" | |
679 | depends on PROC_FS | |
680 | default y | |
681 | help | |
682 | This kernel feature is useful for number crunching applications | |
683 | that may need to compute untrusted bytecode during their | |
684 | execution. By using pipes or other transports made available to | |
685 | the process as file descriptors supporting the read/write | |
686 | syscalls, it's possible to isolate those applications in | |
687 | their own address space using seccomp. Once seccomp is | |
688 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
689 | and the task is only allowed to execute a few safe syscalls | |
690 | defined by each seccomp mode. | |
691 | ||
692 | If unsure, say Y. Only embedded should say N here. | |
693 | ||
694 | endmenu | |
695 | ||
696 | config ISA_DMA_API | |
697 | bool | |
3d066d77 | 698 | default PCI |
14cf11af PM |
699 | |
700 | menu "Bus options" | |
701 | ||
702 | config ISA | |
703 | bool "Support for ISA-bus hardware" | |
933ee711 | 704 | depends on PPC_CHRP |
f9bd170a | 705 | select PPC_I8259 |
14cf11af PM |
706 | help |
707 | Find out whether you have ISA slots on your motherboard. ISA is the | |
708 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
709 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
710 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
711 | embedded board, consult your board documentation. | |
14cf11af | 712 | |
5ac6da66 CL |
713 | config ZONE_DMA |
714 | bool | |
715 | default y | |
716 | ||
af407c6d FT |
717 | config NEED_DMA_MAP_STATE |
718 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
719 | ||
e32205eb FT |
720 | config NEED_SG_DMA_LENGTH |
721 | def_bool y | |
722 | ||
14cf11af PM |
723 | config GENERIC_ISA_DMA |
724 | bool | |
1927445a | 725 | depends on ISA_DMA_API |
14cf11af PM |
726 | default y |
727 | ||
25635c71 PM |
728 | config PPC_INDIRECT_PCI |
729 | bool | |
730 | depends on PCI | |
63dafe57 | 731 | default y if 40x || 44x |
25635c71 PM |
732 | default n |
733 | ||
14cf11af PM |
734 | config EISA |
735 | bool | |
736 | ||
737 | config SBUS | |
738 | bool | |
739 | ||
08264cbc KG |
740 | config FSL_SOC |
741 | bool | |
742 | ||
55c44991 RZ |
743 | config FSL_PCI |
744 | bool | |
745 | select PPC_INDIRECT_PCI | |
d0839118 | 746 | select PCI_QUIRKS |
55c44991 | 747 | |
4ffd6952 AV |
748 | config FSL_PMC |
749 | bool | |
750 | default y | |
751 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
752 | help | |
753 | Freescale MPC85xx/MPC86xx power management controller support | |
754 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
755 | ||
d164f6d4 VG |
756 | config PPC4xx_CPM |
757 | bool | |
758 | default y | |
759 | depends on SUSPEND && (44x || 40x) | |
760 | help | |
761 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
762 | It also enables support for two different idle states (idle-wait | |
763 | and idle-doze). | |
764 | ||
2a706919 SR |
765 | config 4xx_SOC |
766 | bool | |
767 | ||
acaa7aa3 | 768 | config FSL_LBC |
3ab8f2a2 RZ |
769 | bool "Freescale Local Bus support" |
770 | depends on FSL_SOC | |
acaa7aa3 | 771 | help |
3ab8f2a2 RZ |
772 | Enables reporting of errors from the Freescale local bus |
773 | controller. Also contains some common code used by | |
774 | drivers for specific local bus peripherals. | |
acaa7aa3 | 775 | |
83ff9dcf AV |
776 | config FSL_GTM |
777 | bool | |
778 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
779 | help | |
780 | Freescale General-purpose Timers support | |
781 | ||
14cf11af PM |
782 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
783 | config MCA | |
784 | bool | |
785 | ||
b500563b JR |
786 | # Platforms that what PCI turned unconditionally just do select PCI |
787 | # in their config node. Platforms that want to choose at config | |
788 | # time should select PPC_PCI_CHOICE | |
789 | config PPC_PCI_CHOICE | |
790 | bool | |
791 | ||
14cf11af | 792 | config PCI |
b500563b JR |
793 | bool "PCI support" if PPC_PCI_CHOICE |
794 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 795 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
14cf11af | 796 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
335b8cf7 | 797 | select GENERIC_PCI_IOMAP |
14cf11af PM |
798 | help |
799 | Find out whether your system includes a PCI bus. PCI is the name of | |
800 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
801 | your box. If you say Y here, the kernel will include drivers and | |
802 | infrastructure code to support PCI bus devices. | |
803 | ||
804 | config PCI_DOMAINS | |
36e23590 MW |
805 | def_bool PCI |
806 | ||
807 | config PCI_SYSCALL | |
808 | def_bool PCI | |
14cf11af | 809 | |
14cf11af PM |
810 | config PCI_QSPAN |
811 | bool "QSpan PCI" | |
812 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 813 | select PPC_I8259 |
14cf11af PM |
814 | help |
815 | Say Y here if you have a system based on a Motorola 8xx-series | |
816 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
817 | ||
818 | config PCI_8260 | |
819 | bool | |
820 | depends on PCI && 8260 | |
25635c71 | 821 | select PPC_INDIRECT_PCI |
14cf11af PM |
822 | default y |
823 | ||
bb53bb3d JM |
824 | source "drivers/pci/pcie/Kconfig" |
825 | ||
14cf11af PM |
826 | source "drivers/pci/Kconfig" |
827 | ||
828 | source "drivers/pcmcia/Kconfig" | |
829 | ||
830 | source "drivers/pci/hotplug/Kconfig" | |
831 | ||
f1f389d5 ZW |
832 | config HAS_RAPIDIO |
833 | bool | |
834 | default n | |
835 | ||
836 | config RAPIDIO | |
56abde72 | 837 | tristate "RapidIO support" |
388b78ad | 838 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
839 | help |
840 | If you say Y here, the kernel will include drivers and | |
841 | infrastructure code to support RapidIO interconnect devices. | |
842 | ||
388b78ad AB |
843 | config FSL_RIO |
844 | bool "Freescale Embedded SRIO Controller support" | |
56abde72 | 845 | depends on RAPIDIO = y && HAS_RAPIDIO |
388b78ad AB |
846 | default "n" |
847 | ---help--- | |
848 | Include support for RapidIO controller on Freescale embedded | |
849 | processors (MPC8548, MPC8641, etc). | |
850 | ||
f1f389d5 ZW |
851 | source "drivers/rapidio/Kconfig" |
852 | ||
14cf11af PM |
853 | endmenu |
854 | ||
0f890c8d SP |
855 | config NONSTATIC_KERNEL |
856 | bool | |
857 | default n | |
858 | ||
14cf11af PM |
859 | menu "Advanced setup" |
860 | depends on PPC32 | |
861 | ||
862 | config ADVANCED_OPTIONS | |
863 | bool "Prompt for advanced kernel configuration options" | |
864 | help | |
865 | This option will enable prompting for a variety of advanced kernel | |
866 | configuration options. These options can cause the kernel to not | |
867 | work if they are set incorrectly, but can be used to optimize certain | |
868 | aspects of kernel memory management. | |
869 | ||
870 | Unless you know what you are doing, say N here. | |
871 | ||
872 | comment "Default settings for advanced configuration options are used" | |
873 | depends on !ADVANCED_OPTIONS | |
874 | ||
14cf11af PM |
875 | config LOWMEM_SIZE_BOOL |
876 | bool "Set maximum low memory" | |
877 | depends on ADVANCED_OPTIONS | |
878 | help | |
879 | This option allows you to set the maximum amount of memory which | |
880 | will be used as "low memory", that is, memory which the kernel can | |
881 | access directly, without having to set up a kernel virtual mapping. | |
882 | This can be useful in optimizing the layout of kernel virtual | |
883 | memory. | |
884 | ||
885 | Say N here unless you know what you are doing. | |
886 | ||
887 | config LOWMEM_SIZE | |
888 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
889 | default "0x30000000" | |
890 | ||
96051465 TP |
891 | config LOWMEM_CAM_NUM_BOOL |
892 | bool "Set number of CAMs to use to map low memory" | |
893 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
894 | help | |
895 | This option allows you to set the maximum number of CAM slots that | |
896 | will be used to map low memory. There are a limited number of slots | |
897 | available and even more limited number that will fit in the L1 MMU. | |
898 | However, using more entries will allow mapping more low memory. This | |
899 | can be useful in optimizing the layout of kernel virtual memory. | |
900 | ||
901 | Say N here unless you know what you are doing. | |
902 | ||
903 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 904 | depends on FSL_BOOKE |
96051465 TP |
905 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
906 | default 3 | |
907 | ||
0f890c8d | 908 | config DYNAMIC_MEMSTART |
642e56ff KC |
909 | bool "Enable page aligned dynamic load address for kernel" |
910 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | |
0f890c8d SP |
911 | select NONSTATIC_KERNEL |
912 | help | |
913 | This option enables the kernel to be loaded at any page aligned | |
914 | physical address. The kernel creates a mapping from KERNELBASE to | |
915 | the address where the kernel is loaded. The page size here implies | |
916 | the TLB page size of the mapping for kernel on the particular platform. | |
917 | Please refer to the init code for finding the TLB page size. | |
918 | ||
919 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
920 | kernel image, where the only restriction is the page aligned kernel | |
921 | load address. When this option is enabled, the compile time physical | |
922 | address CONFIG_PHYSICAL_START is ignored. | |
923 | ||
9c5f7d39 SP |
924 | This option is overridden by CONFIG_RELOCATABLE |
925 | ||
37dd2bad | 926 | config RELOCATABLE |
642e56ff | 927 | bool "Build a relocatable kernel" |
dd189692 | 928 | depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) |
9c5f7d39 | 929 | select NONSTATIC_KERNEL |
37dd2bad KG |
930 | help |
931 | This builds a kernel image that is capable of running at the | |
9c5f7d39 SP |
932 | location the kernel is loaded at, without any alignment restrictions. |
933 | This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. | |
37dd2bad KG |
934 | |
935 | One use is for the kexec on panic case where the recovery kernel | |
936 | must live at a different physical address than the primary | |
937 | kernel. | |
938 | ||
939 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
940 | it has been loaded at and the compile time physical addresses | |
941 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
942 | setting can still be useful to bootwrappers that need to know the | |
9c5f7d39 SP |
943 | load address of the kernel (eg. u-boot/mkimage). |
944 | ||
945 | config RELOCATABLE_PPC32 | |
946 | def_bool y | |
947 | depends on PPC32 && RELOCATABLE | |
37dd2bad KG |
948 | |
949 | config PAGE_OFFSET_BOOL | |
950 | bool "Set custom page offset address" | |
951 | depends on ADVANCED_OPTIONS | |
952 | help | |
953 | This option allows you to set the kernel virtual address at which | |
954 | the kernel will map low memory. This can be useful in optimizing | |
955 | the virtual memory layout of the system. | |
956 | ||
957 | Say N here unless you know what you are doing. | |
958 | ||
959 | config PAGE_OFFSET | |
960 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
961 | default "0xc0000000" | |
962 | ||
14cf11af PM |
963 | config KERNEL_START_BOOL |
964 | bool "Set custom kernel base address" | |
965 | depends on ADVANCED_OPTIONS | |
966 | help | |
967 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
968 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
969 | however there are times (like kdump) that one might not want them | |
970 | to be the same. | |
14cf11af PM |
971 | |
972 | Say N here unless you know what you are doing. | |
973 | ||
974 | config KERNEL_START | |
975 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 976 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 977 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
978 | default "0xc0000000" |
979 | ||
37dd2bad KG |
980 | config PHYSICAL_START_BOOL |
981 | bool "Set physical address where the kernel is loaded" | |
982 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
983 | help | |
984 | This gives the physical address where the kernel is loaded. | |
985 | ||
986 | Say N here unless you know what you are doing. | |
987 | ||
988 | config PHYSICAL_START | |
989 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
0f890c8d | 990 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
991 | default "0x00000000" |
992 | ||
993 | config PHYSICAL_ALIGN | |
994 | hex | |
c8f3570b | 995 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
996 | help |
997 | This value puts the alignment restrictions on physical address | |
998 | where kernel is loaded and run from. Kernel is compiled for an | |
999 | address which meets above alignment restriction. | |
1000 | ||
14cf11af PM |
1001 | config TASK_SIZE_BOOL |
1002 | bool "Set custom user task size" | |
1003 | depends on ADVANCED_OPTIONS | |
1004 | help | |
1005 | This option allows you to set the amount of virtual address space | |
1006 | allocated to user tasks. This can be useful in optimizing the | |
1007 | virtual memory layout of the system. | |
1008 | ||
1009 | Say N here unless you know what you are doing. | |
1010 | ||
1011 | config TASK_SIZE | |
1012 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1013 | default "0x80000000" if PPC_8xx |
4d9e5510 | 1014 | default "0xc0000000" |
14cf11af | 1015 | |
84532a0f BH |
1016 | config CONSISTENT_SIZE_BOOL |
1017 | bool "Set custom consistent memory pool size" | |
1018 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1019 | help | |
1020 | This option allows you to set the size of the | |
1021 | consistent memory pool. This pool of virtual memory | |
1022 | is used to make consistent memory allocations. | |
1023 | ||
1024 | config CONSISTENT_SIZE | |
1025 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1026 | default "0x00200000" if NOT_COHERENT_CACHE | |
1027 | ||
14cf11af PM |
1028 | config PIN_TLB |
1029 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1030 | depends on ADVANCED_OPTIONS && 8xx | |
1031 | endmenu | |
1032 | ||
cabb5587 | 1033 | if PPC64 |
549e8152 PM |
1034 | config RELOCATABLE |
1035 | bool "Build a relocatable kernel" | |
fb43e847 | 1036 | depends on !COMPILE_TEST |
0f890c8d | 1037 | select NONSTATIC_KERNEL |
549e8152 PM |
1038 | help |
1039 | This builds a kernel image that is capable of running anywhere | |
1040 | in the RMA (real memory area) at any 16k-aligned base address. | |
1041 | The kernel is linked as a position-independent executable (PIE) | |
1042 | and contains dynamic relocations which are processed early | |
1043 | in the bootup process. | |
1044 | ||
1045 | One use is for the kexec on panic case where the recovery kernel | |
1046 | must live at a different physical address than the primary | |
1047 | kernel. | |
1048 | ||
bdbc29c1 | 1049 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1050 | config PAGE_OFFSET |
1051 | hex | |
1052 | default "0xc000000000000000" | |
cabb5587 SR |
1053 | config KERNEL_START |
1054 | hex | |
eeb2d218 | 1055 | default "0xc000000000000000" |
37dd2bad KG |
1056 | config PHYSICAL_START |
1057 | hex | |
37dd2bad | 1058 | default "0x00000000" |
cabb5587 SR |
1059 | endif |
1060 | ||
a4da0d50 ME |
1061 | config ARCH_RANDOM |
1062 | def_bool n | |
1063 | ||
14cf11af PM |
1064 | source "net/Kconfig" |
1065 | ||
1066 | source "drivers/Kconfig" | |
1067 | ||
1068 | source "fs/Kconfig" | |
1069 | ||
98658538 LY |
1070 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
1071 | ||
14cf11af PM |
1072 | source "lib/Kconfig" |
1073 | ||
14cf11af PM |
1074 | source "arch/powerpc/Kconfig.debug" |
1075 | ||
1076 | source "security/Kconfig" | |
1077 | ||
1078 | config KEYS_COMPAT | |
1079 | bool | |
1080 | depends on COMPAT && KEYS | |
1081 | default y | |
1082 | ||
1083 | source "crypto/Kconfig" | |
6f668280 | 1084 | |
1088a209 SM |
1085 | config PPC_LIB_RHEAP |
1086 | bool | |
1087 | ||
bbf45ba5 | 1088 | source "arch/powerpc/kvm/Kconfig" |