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