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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 | ||
aa3be5f3 TB |
30 | config GENERIC_CMOS_UPDATE |
31 | def_bool y | |
32 | ||
4a4cfe38 TB |
33 | config GENERIC_TIME_VSYSCALL |
34 | def_bool y | |
35 | ||
d831d0b8 TB |
36 | config GENERIC_CLOCKEVENTS |
37 | def_bool y | |
38 | ||
c2a7e818 | 39 | config HAVE_SETUP_PER_CPU_AREA |
e74e3962 TH |
40 | def_bool PPC64 |
41 | ||
c2a7e818 | 42 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
b32ef636 | 43 | def_bool PPC64 |
44 | ||
551b81f2 ME |
45 | config NR_IRQS |
46 | int "Number of virtual interrupt numbers" | |
859aefc5 | 47 | range 32 32768 |
551b81f2 ME |
48 | default "512" |
49 | help | |
50 | This defines the number of virtual interrupt numbers the kernel | |
51 | can manage. Virtual interrupt numbers are what you see in | |
52 | /proc/interrupts. If you configure your system to have too few, | |
53 | drivers will fail to load or worse - handle with care. | |
54 | ||
fd3e0bbc CH |
55 | config STACKTRACE_SUPPORT |
56 | bool | |
57 | default y | |
58 | ||
01f4b8b8 AB |
59 | config HAVE_LATENCYTOP_SUPPORT |
60 | def_bool y | |
61 | ||
945feb17 BH |
62 | config TRACE_IRQFLAGS_SUPPORT |
63 | bool | |
945feb17 BH |
64 | default y |
65 | ||
66 | config LOCKDEP_SUPPORT | |
67 | bool | |
68 | default y | |
69 | ||
14cf11af PM |
70 | config RWSEM_GENERIC_SPINLOCK |
71 | bool | |
72 | ||
73 | config RWSEM_XCHGADD_ALGORITHM | |
74 | bool | |
75 | default y | |
76 | ||
95c354fe NP |
77 | config GENERIC_LOCKBREAK |
78 | bool | |
79 | default y | |
80 | depends on SMP && PREEMPT | |
81 | ||
f0d1b0b3 DH |
82 | config ARCH_HAS_ILOG2_U32 |
83 | bool | |
ef55d53c | 84 | default y |
f0d1b0b3 DH |
85 | |
86 | config ARCH_HAS_ILOG2_U64 | |
87 | bool | |
ef55d53c | 88 | default y if 64BIT |
f0d1b0b3 | 89 | |
e779b2f9 AM |
90 | config GENERIC_HWEIGHT |
91 | bool | |
92 | default y | |
93 | ||
b7ce3415 AV |
94 | config GENERIC_GPIO |
95 | bool | |
96 | help | |
97 | Generic GPIO API support | |
98 | ||
f057eac0 SR |
99 | config ARCH_NO_VIRT_TO_BUS |
100 | def_bool PPC64 | |
101 | ||
14cf11af PM |
102 | config PPC |
103 | bool | |
104 | default y | |
10f85f43 | 105 | select OF |
e6ce1324 | 106 | select OF_EARLY_FLATTREE |
2b79d696 SR |
107 | select HAVE_FTRACE_MCOUNT_RECORD |
108 | select HAVE_DYNAMIC_FTRACE | |
606576ce | 109 | select HAVE_FUNCTION_TRACER |
60ce8f72 | 110 | select HAVE_FUNCTION_GRAPH_TRACER |
7444a72e | 111 | select ARCH_WANT_OPTIONAL_GPIOLIB |
ec7748b5 | 112 | select HAVE_IDE |
a1f242ff | 113 | select HAVE_IOREMAP_PROT |
58340a07 | 114 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
3f550096 | 115 | select HAVE_KPROBES |
17ce452f | 116 | select HAVE_ARCH_KGDB |
9edddaa2 | 117 | select HAVE_KRETPROBES |
dec2b0d0 | 118 | select HAVE_ARCH_TRACEHOOK |
95f72d1e | 119 | select HAVE_MEMBLOCK |
46bab4e4 | 120 | select HAVE_DMA_ATTRS |
80d3e8ab | 121 | select HAVE_DMA_API_DEBUG |
b7d7a240 | 122 | select USE_GENERIC_SMP_HELPERS if SMP |
4e491d14 | 123 | select HAVE_OPROFILE |
ee6a0932 | 124 | select HAVE_SYSCALL_WRAPPERS if PPC64 |
c2e95c6d | 125 | select GENERIC_ATOMIC64 if PPC32 |
e360adbe | 126 | select HAVE_IRQ_WORK |
cdd6c482 | 127 | select HAVE_PERF_EVENTS |
359e4284 | 128 | select HAVE_REGS_AND_STACK_ACCESS_API |
5aae8a53 | 129 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
2604362b TG |
130 | select HAVE_GENERIC_HARDIRQS |
131 | select HAVE_SPARSE_IRQ | |
132 | select IRQ_PER_CPU | |
433c9c67 TG |
133 | select GENERIC_IRQ_SHOW |
134 | select GENERIC_IRQ_SHOW_LEVEL | |
26723911 | 135 | select HAVE_RCU_TABLE_FREE if SMP |
02424d89 | 136 | select HAVE_SYSCALL_TRACEPOINTS |
14cf11af PM |
137 | |
138 | config EARLY_PRINTK | |
139 | bool | |
51d3082f | 140 | default y |
14cf11af PM |
141 | |
142 | config COMPAT | |
143 | bool | |
144 | default y if PPC64 | |
01e31dba | 145 | select COMPAT_BINFMT_ELF |
14cf11af PM |
146 | |
147 | config SYSVIPC_COMPAT | |
148 | bool | |
149 | depends on COMPAT && SYSVIPC | |
150 | default y | |
151 | ||
152 | # All PPC32s use generic nvram driver through ppc_md | |
153 | config GENERIC_NVRAM | |
154 | bool | |
155 | default y if PPC32 | |
156 | ||
ae1e9130 | 157 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
158 | bool |
159 | default y | |
160 | ||
161 | config ARCH_MAY_HAVE_PC_FDC | |
162 | bool | |
bed59275 | 163 | default !PPC_PSERIES || PCI |
14cf11af | 164 | |
08264cbc KG |
165 | config PPC_OF |
166 | def_bool y | |
167 | ||
168 | config PPC_UDBG_16550 | |
169 | bool | |
170 | default n | |
171 | ||
08264cbc KG |
172 | config GENERIC_TBSYNC |
173 | bool | |
174 | default y if PPC32 && SMP | |
175 | default n | |
176 | ||
e65e1fc2 AV |
177 | config AUDIT_ARCH |
178 | bool | |
179 | default y | |
180 | ||
73c9ceab JF |
181 | config GENERIC_BUG |
182 | bool | |
183 | default y | |
184 | depends on BUG | |
185 | ||
b3028878 | 186 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 187 | default y if PMAC_APM_EMU |
b3028878 JB |
188 | bool |
189 | ||
6c5b59b9 DG |
190 | config EPAPR_BOOT |
191 | bool | |
192 | help | |
193 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
194 | default n | |
195 | ||
f4fc4a5b KG |
196 | config DEFAULT_UIMAGE |
197 | bool | |
198 | help | |
199 | Used to allow a board to specify it wants a uImage built by default | |
200 | default n | |
201 | ||
b09c1644 SW |
202 | config REDBOOT |
203 | bool | |
204 | ||
801e4062 JB |
205 | config ARCH_HIBERNATION_POSSIBLE |
206 | bool | |
543b9fd3 JB |
207 | default y |
208 | ||
f4cb5700 JB |
209 | config ARCH_SUSPEND_POSSIBLE |
210 | def_bool y | |
4ffd6952 | 211 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
e5462d16 | 212 | (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x |
f4cb5700 | 213 | |
4c75a6f4 BH |
214 | config PPC_DCR_NATIVE |
215 | bool | |
216 | default n | |
217 | ||
218 | config PPC_DCR_MMIO | |
219 | bool | |
220 | default n | |
221 | ||
222 | config PPC_DCR | |
223 | bool | |
224 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
225 | default y | |
226 | ||
4c9d2800 BH |
227 | config PPC_OF_PLATFORM_PCI |
228 | bool | |
373a6da1 | 229 | depends on PCI |
4c9d2800 BH |
230 | depends on PPC64 # not supported on 32 bits yet |
231 | default n | |
232 | ||
6a11f75b AM |
233 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
234 | def_bool y | |
235 | ||
172ae2e7 DK |
236 | config PPC_ADV_DEBUG_REGS |
237 | bool | |
238 | depends on 40x || BOOKE | |
239 | default y | |
240 | ||
241 | config PPC_ADV_DEBUG_IACS | |
242 | int | |
243 | depends on PPC_ADV_DEBUG_REGS | |
244 | default 4 if 44x | |
245 | default 2 | |
246 | ||
247 | config PPC_ADV_DEBUG_DACS | |
248 | int | |
249 | depends on PPC_ADV_DEBUG_REGS | |
250 | default 2 | |
251 | ||
252 | config PPC_ADV_DEBUG_DVCS | |
253 | int | |
254 | depends on PPC_ADV_DEBUG_REGS | |
255 | default 2 if 44x | |
256 | default 0 | |
257 | ||
258 | config PPC_ADV_DEBUG_DAC_RANGE | |
259 | bool | |
260 | depends on PPC_ADV_DEBUG_REGS && 44x | |
261 | default y | |
262 | ||
14cf11af PM |
263 | source "init/Kconfig" |
264 | ||
dc52ddc0 MH |
265 | source "kernel/Kconfig.freezer" |
266 | ||
a2d2e1ec | 267 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 268 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 269 | |
14cf11af PM |
270 | menu "Kernel options" |
271 | ||
272 | config HIGHMEM | |
273 | bool "High memory support" | |
274 | depends on PPC32 | |
275 | ||
1ad74998 | 276 | source kernel/time/Kconfig |
14cf11af PM |
277 | source kernel/Kconfig.hz |
278 | source kernel/Kconfig.preempt | |
279 | source "fs/Kconfig.binfmt" | |
280 | ||
ba72cb8c MG |
281 | config HUGETLB_PAGE_SIZE_VARIABLE |
282 | bool | |
283 | depends on HUGETLB_PAGE | |
284 | default y | |
285 | ||
14cf11af PM |
286 | config MATH_EMULATION |
287 | bool "Math emulation" | |
4d52719a | 288 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
289 | ---help--- |
290 | Some PowerPC chips designed for embedded applications do not have | |
291 | a floating-point unit and therefore do not implement the | |
292 | floating-point instructions in the PowerPC instruction set. If you | |
293 | say Y here, the kernel will include code to emulate a floating-point | |
294 | unit, which will allow programs that use floating-point | |
295 | instructions to run. | |
296 | ||
5dd57a13 SW |
297 | config 8XX_MINIMAL_FPEMU |
298 | bool "Minimal math emulation for 8xx" | |
299 | depends on 8xx && !MATH_EMULATION | |
300 | help | |
301 | Older arch/ppc kernels still emulated a few floating point | |
302 | instructions such as load and store, even when full math | |
303 | emulation is disabled. Say "Y" here if you want to preserve | |
304 | this behavior. | |
305 | ||
306 | It is recommended that you build a soft-float userspace instead. | |
307 | ||
fb3475e9 FT |
308 | config IOMMU_HELPER |
309 | def_bool PPC64 | |
310 | ||
ec3cf2ec BB |
311 | config SWIOTLB |
312 | bool "SWIOTLB support" | |
313 | default n | |
314 | select IOMMU_HELPER | |
315 | ---help--- | |
316 | Support for IO bounce buffering for systems without an IOMMU. | |
317 | This allows us to DMA to the full physical address space on | |
318 | platforms where the size of a physical address is larger | |
319 | than the bus address. Not all platforms support this. | |
320 | ||
14cf11af PM |
321 | config HOTPLUG_CPU |
322 | bool "Support for enabling/disabling CPUs" | |
323 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
324 | ---help--- | |
325 | Say Y here to be able to disable and re-enable individual | |
326 | CPUs at runtime on SMP machines. | |
327 | ||
328 | Say N if you are unsure. | |
329 | ||
12633e80 NF |
330 | config ARCH_CPU_PROBE_RELEASE |
331 | def_bool y | |
332 | depends on HOTPLUG_CPU | |
333 | ||
cc57637b YG |
334 | config ARCH_ENABLE_MEMORY_HOTPLUG |
335 | def_bool y | |
336 | ||
a99824f3 BP |
337 | config ARCH_HAS_WALK_MEMORY |
338 | def_bool y | |
339 | ||
1482471d BP |
340 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
341 | def_bool y | |
342 | ||
14cf11af PM |
343 | config KEXEC |
344 | bool "kexec system call (EXPERIMENTAL)" | |
f933a41e | 345 | depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL |
14cf11af PM |
346 | help |
347 | kexec is a system call that implements the ability to shutdown your | |
348 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 349 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
350 | you can start any kernel with it, not just Linux. |
351 | ||
1f1332f7 | 352 | The name comes from the similarity to the exec system call. |
14cf11af PM |
353 | |
354 | It is an ongoing process to be certain the hardware in a machine | |
355 | is properly shutdown, so do not be surprised if this code does not | |
356 | initially work for you. It may help to enable device hotplugging | |
357 | support. As of this writing the exact hardware interface is | |
358 | strongly in flux, so no good recommendation can be made. | |
359 | ||
e8625d46 | 360 | config CRASH_DUMP |
3420b5da | 361 | bool "Build a kdump crash kernel" |
f933a41e MM |
362 | depends on PPC64 || 6xx || FSL_BOOKE |
363 | select RELOCATABLE if PPC64 || FSL_BOOKE | |
e8625d46 HM |
364 | help |
365 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
366 | The same kernel binary can be used as production kernel and dump |
367 | capture kernel. | |
e8625d46 | 368 | |
242f271c MA |
369 | config PHYP_DUMP |
370 | bool "Hypervisor-assisted dump (EXPERIMENTAL)" | |
371 | depends on PPC_PSERIES && EXPERIMENTAL | |
372 | help | |
373 | Hypervisor-assisted dump is meant to be a kdump replacement | |
374 | offering robustness and speed not possible without system | |
692105b8 | 375 | hypervisor assistance. |
242f271c MA |
376 | |
377 | If unsure, say "N" | |
378 | ||
14cf11af PM |
379 | config PPCBUG_NVRAM |
380 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
381 | default y if PPC_PREP | |
382 | ||
383 | config IRQ_ALL_CPUS | |
384 | bool "Distribute interrupts on all CPUs by default" | |
385 | depends on SMP && !MV64360 | |
386 | help | |
387 | This option gives the kernel permission to distribute IRQs across | |
388 | multiple CPUs. Saying N here will route all IRQs to the first | |
389 | CPU. Generally saying Y is safe, although some problems have been | |
390 | reported with SMP Power Macintoshes with this option enabled. | |
391 | ||
ffa27b6b AW |
392 | config NUMA |
393 | bool "NUMA support" | |
394 | depends on PPC64 | |
395 | default y if SMP && PPC_PSERIES | |
396 | ||
c80d79d7 YG |
397 | config NODES_SHIFT |
398 | int | |
ea55bf29 | 399 | default "8" if PPC64 |
c80d79d7 YG |
400 | default "4" |
401 | depends on NEED_MULTIPLE_NODES | |
402 | ||
ea55bf29 AB |
403 | config MAX_ACTIVE_REGIONS |
404 | int | |
405 | default "256" if PPC64 | |
406 | default "32" | |
407 | ||
14cf11af PM |
408 | config ARCH_SELECT_MEMORY_MODEL |
409 | def_bool y | |
410 | depends on PPC64 | |
411 | ||
412 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
413 | def_bool y |
414 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 415 | |
45fb6cea | 416 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 417 | def_bool y |
9100b205 | 418 | depends on PPC64 |
d29eff7b | 419 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 420 | |
45fb6cea | 421 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 422 | def_bool y |
78bde53e | 423 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 424 | |
c67c3cb4 | 425 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 426 | def_bool y |
c67c3cb4 | 427 | |
5a1eb5c4 BH |
428 | config SYS_SUPPORTS_HUGETLBFS |
429 | def_bool y | |
430 | depends on PPC_BOOK3S_64 | |
431 | ||
c67c3cb4 | 432 | source "mm/Kconfig" |
14cf11af | 433 | |
7e9191da MK |
434 | config ARCH_MEMORY_PROBE |
435 | def_bool y | |
436 | depends on MEMORY_HOTPLUG | |
437 | ||
75167957 AW |
438 | # Some NUMA nodes have memory ranges that span |
439 | # other nodes. Even though a pfn is valid and | |
440 | # between a node's start and end pfns, it may not | |
441 | # reside on that node. See memmap_init_zone() | |
442 | # for details. | |
443 | config NODES_SPAN_OTHER_NODES | |
444 | def_bool y | |
445 | depends on NEED_MULTIPLE_NODES | |
446 | ||
16c2d476 BH |
447 | config PPC_HAS_HASH_64K |
448 | bool | |
449 | depends on PPC64 | |
450 | default n | |
451 | ||
e1240122 YT |
452 | config STDBINUTILS |
453 | bool "Using standard binutils settings" | |
454 | depends on 44x | |
455 | default y | |
456 | help | |
457 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
458 | Note, that kernel will be able to run only those applications, | |
459 | which had been compiled using binutils later than 2.17.50.0.3 with | |
460 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
461 | the older binutils, you can patch them with a trivial patch, which | |
462 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
463 | ||
ca9153a3 IY |
464 | choice |
465 | prompt "Page size" | |
466 | default PPC_4K_PAGES | |
3c726f8d | 467 | help |
ca9153a3 IY |
468 | Select the kernel logical page size. Increasing the page size |
469 | will reduce software overhead at each page boundary, allow | |
470 | hardware prefetch mechanisms to be more effective, and allow | |
471 | larger dma transfers increasing IO efficiency and reducing | |
472 | overhead. However the utilization of memory will increase. | |
473 | For example, each cached file will using a multiple of the | |
474 | page size to hold its contents and the difference between the | |
475 | end of file and the end of page is wasted. | |
476 | ||
477 | Some dedicated systems, such as software raid serving with | |
478 | accelerated calculations, have shown significant increases. | |
479 | ||
480 | If you configure a 64 bit kernel for 64k pages but the | |
481 | processor does not support them, then the kernel will simulate | |
482 | them with 4k pages, loading them on demand, but with the | |
483 | reduced software overhead and larger internal fragmentation. | |
484 | For the 32 bit kernel, a large page option will not be offered | |
485 | unless it is supported by the configured processor. | |
486 | ||
487 | If unsure, choose 4K_PAGES. | |
488 | ||
489 | config PPC_4K_PAGES | |
490 | bool "4k page size" | |
491 | ||
492 | config PPC_16K_PAGES | |
493 | bool "16k page size" if 44x | |
494 | ||
495 | config PPC_64K_PAGES | |
2d27cfd3 | 496 | bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 |
ca9153a3 IY |
497 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 |
498 | ||
e1240122 YT |
499 | config PPC_256K_PAGES |
500 | bool "256k page size" if 44x | |
adf213c4 | 501 | depends on !STDBINUTILS |
e1240122 YT |
502 | help |
503 | Make the page size 256k. | |
504 | ||
505 | As the ELF standard only requires alignment to support page | |
506 | sizes up to 64k, you will need to compile all of your user | |
507 | space applications with a non-standard binutils settings | |
508 | (see the STDBINUTILS description for details). | |
509 | ||
510 | Say N unless you know what you are doing. | |
511 | ||
ca9153a3 | 512 | endchoice |
3c726f8d | 513 | |
53bcddb9 SR |
514 | config FORCE_MAX_ZONEORDER |
515 | int "Maximum zone order" | |
066c4b87 BH |
516 | range 9 64 if PPC64 && PPC_64K_PAGES |
517 | default "9" if PPC64 && PPC_64K_PAGES | |
518 | range 13 64 if PPC64 && !PPC_64K_PAGES | |
519 | default "13" if PPC64 && !PPC_64K_PAGES | |
520 | range 9 64 if PPC32 && PPC_16K_PAGES | |
521 | default "9" if PPC32 && PPC_16K_PAGES | |
522 | range 7 64 if PPC32 && PPC_64K_PAGES | |
523 | default "7" if PPC32 && PPC_64K_PAGES | |
524 | range 5 64 if PPC32 && PPC_256K_PAGES | |
525 | default "5" if PPC32 && PPC_256K_PAGES | |
ebe40c5c | 526 | range 11 64 |
53bcddb9 SR |
527 | default "11" |
528 | help | |
529 | The kernel memory allocator divides physically contiguous memory | |
530 | blocks into "zones", where each zone is a power of two number of | |
531 | pages. This option selects the largest power of two that the kernel | |
532 | keeps in the memory allocator. If you need to allocate very large | |
533 | blocks of physically contiguous memory, then you may need to | |
534 | increase this value. | |
535 | ||
536 | This config option is actually maximum order plus one. For example, | |
537 | a value of 11 means that the largest free memory block is 2^10 pages. | |
538 | ||
539 | The page size is not necessarily 4KB. For example, on 64-bit | |
540 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
541 | this in mind when choosing a value for this option. | |
542 | ||
fa28237c PM |
543 | config PPC_SUBPAGE_PROT |
544 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 545 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
546 | help |
547 | This option adds support for a system call to allow user programs | |
548 | to set access permissions (read/write, readonly, or no access) | |
549 | on the 4k subpages of each 64k page. | |
550 | ||
14cf11af PM |
551 | config SCHED_SMT |
552 | bool "SMT (Hyperthreading) scheduler support" | |
553 | depends on PPC64 && SMP | |
14cf11af PM |
554 | help |
555 | SMT scheduler support improves the CPU scheduler's decision making | |
556 | when dealing with POWER5 cpus at a cost of slightly increased | |
557 | overhead in some places. If unsure say N here. | |
558 | ||
14cf11af PM |
559 | config CMDLINE_BOOL |
560 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
561 | |
562 | config CMDLINE | |
563 | string "Initial kernel command string" | |
564 | depends on CMDLINE_BOOL | |
565 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
566 | help | |
567 | On some platforms, there is currently no way for the boot loader to | |
568 | pass arguments to the kernel. For these platforms, you can supply | |
569 | some command-line options at build time by entering them here. In | |
570 | most cases you will need to specify the root device here. | |
571 | ||
c356aa45 GL |
572 | config EXTRA_TARGETS |
573 | string "Additional default image types" | |
574 | help | |
575 | List additional targets to be built by the bootwrapper here (separated | |
576 | by spaces). This is useful for targets that depend of device tree | |
577 | files in the .dts directory. | |
578 | ||
579 | Targets in this list will be build as part of the default build | |
580 | target, or when the user does a 'make zImage' or a | |
581 | 'make zImage.initrd'. | |
582 | ||
583 | If unsure, leave blank | |
584 | ||
b28f5081 JB |
585 | config ARCH_WANTS_FREEZER_CONTROL |
586 | def_bool y | |
587 | depends on ADB_PMU | |
588 | ||
14cf11af | 589 | source kernel/power/Kconfig |
14cf11af PM |
590 | |
591 | config SECCOMP | |
592 | bool "Enable seccomp to safely compute untrusted bytecode" | |
593 | depends on PROC_FS | |
594 | default y | |
595 | help | |
596 | This kernel feature is useful for number crunching applications | |
597 | that may need to compute untrusted bytecode during their | |
598 | execution. By using pipes or other transports made available to | |
599 | the process as file descriptors supporting the read/write | |
600 | syscalls, it's possible to isolate those applications in | |
601 | their own address space using seccomp. Once seccomp is | |
602 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
603 | and the task is only allowed to execute a few safe syscalls | |
604 | defined by each seccomp mode. | |
605 | ||
606 | If unsure, say Y. Only embedded should say N here. | |
607 | ||
608 | endmenu | |
609 | ||
610 | config ISA_DMA_API | |
611 | bool | |
373a6da1 | 612 | default !PPC_ISERIES || PCI |
14cf11af PM |
613 | |
614 | menu "Bus options" | |
615 | ||
616 | config ISA | |
617 | bool "Support for ISA-bus hardware" | |
618 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 619 | select PPC_I8259 |
14cf11af PM |
620 | help |
621 | Find out whether you have ISA slots on your motherboard. ISA is the | |
622 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
623 | inside your box. If you have an Apple machine, say N here; if you | |
624 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
625 | you have an embedded board, consult your board documentation. | |
626 | ||
5ac6da66 CL |
627 | config ZONE_DMA |
628 | bool | |
629 | default y | |
630 | ||
af407c6d FT |
631 | config NEED_DMA_MAP_STATE |
632 | def_bool (PPC64 || NOT_COHERENT_CACHE) | |
633 | ||
e32205eb FT |
634 | config NEED_SG_DMA_LENGTH |
635 | def_bool y | |
636 | ||
14cf11af PM |
637 | config GENERIC_ISA_DMA |
638 | bool | |
1927445a | 639 | depends on ISA_DMA_API |
14cf11af PM |
640 | default y |
641 | ||
25635c71 PM |
642 | config PPC_INDIRECT_PCI |
643 | bool | |
644 | depends on PCI | |
63dafe57 | 645 | default y if 40x || 44x |
25635c71 PM |
646 | default n |
647 | ||
14cf11af PM |
648 | config EISA |
649 | bool | |
650 | ||
651 | config SBUS | |
652 | bool | |
653 | ||
08264cbc KG |
654 | config FSL_SOC |
655 | bool | |
656 | ||
55c44991 RZ |
657 | config FSL_PCI |
658 | bool | |
659 | select PPC_INDIRECT_PCI | |
d0839118 | 660 | select PCI_QUIRKS |
55c44991 | 661 | |
4ffd6952 AV |
662 | config FSL_PMC |
663 | bool | |
664 | default y | |
665 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
666 | help | |
667 | Freescale MPC85xx/MPC86xx power management controller support | |
668 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
669 | ||
d164f6d4 VG |
670 | config PPC4xx_CPM |
671 | bool | |
672 | default y | |
673 | depends on SUSPEND && (44x || 40x) | |
674 | help | |
675 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
676 | It also enables support for two different idle states (idle-wait | |
677 | and idle-doze). | |
678 | ||
2a706919 SR |
679 | config 4xx_SOC |
680 | bool | |
681 | ||
acaa7aa3 | 682 | config FSL_LBC |
3ab8f2a2 RZ |
683 | bool "Freescale Local Bus support" |
684 | depends on FSL_SOC | |
acaa7aa3 | 685 | help |
3ab8f2a2 RZ |
686 | Enables reporting of errors from the Freescale local bus |
687 | controller. Also contains some common code used by | |
688 | drivers for specific local bus peripherals. | |
acaa7aa3 | 689 | |
83ff9dcf AV |
690 | config FSL_GTM |
691 | bool | |
692 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
693 | help | |
694 | Freescale General-purpose Timers support | |
695 | ||
14cf11af PM |
696 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
697 | config MCA | |
698 | bool | |
699 | ||
b500563b JR |
700 | # Platforms that what PCI turned unconditionally just do select PCI |
701 | # in their config node. Platforms that want to choose at config | |
702 | # time should select PPC_PCI_CHOICE | |
703 | config PPC_PCI_CHOICE | |
704 | bool | |
705 | ||
14cf11af | 706 | config PCI |
b500563b JR |
707 | bool "PCI support" if PPC_PCI_CHOICE |
708 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
bcc48591 | 709 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
f21f49ea | 710 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 711 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 712 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
713 | help |
714 | Find out whether your system includes a PCI bus. PCI is the name of | |
715 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
716 | your box. If you say Y here, the kernel will include drivers and | |
717 | infrastructure code to support PCI bus devices. | |
718 | ||
719 | config PCI_DOMAINS | |
36e23590 MW |
720 | def_bool PCI |
721 | ||
722 | config PCI_SYSCALL | |
723 | def_bool PCI | |
14cf11af | 724 | |
14cf11af PM |
725 | config PCI_QSPAN |
726 | bool "QSpan PCI" | |
727 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 728 | select PPC_I8259 |
14cf11af PM |
729 | help |
730 | Say Y here if you have a system based on a Motorola 8xx-series | |
731 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
732 | ||
733 | config PCI_8260 | |
734 | bool | |
735 | depends on PCI && 8260 | |
25635c71 | 736 | select PPC_INDIRECT_PCI |
14cf11af PM |
737 | default y |
738 | ||
739 | config 8260_PCI9 | |
4a3ecc62 | 740 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 741 | depends on PCI_8260 && !8272 |
14cf11af PM |
742 | default y |
743 | ||
744 | choice | |
4a3ecc62 | 745 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
746 | depends on 8260_PCI9 |
747 | ||
748 | config 8260_PCI9_IDMA1 | |
749 | bool "IDMA1" | |
750 | ||
751 | config 8260_PCI9_IDMA2 | |
752 | bool "IDMA2" | |
753 | ||
754 | config 8260_PCI9_IDMA3 | |
755 | bool "IDMA3" | |
756 | ||
757 | config 8260_PCI9_IDMA4 | |
758 | bool "IDMA4" | |
759 | ||
760 | endchoice | |
761 | ||
bb53bb3d JM |
762 | source "drivers/pci/pcie/Kconfig" |
763 | ||
14cf11af PM |
764 | source "drivers/pci/Kconfig" |
765 | ||
766 | source "drivers/pcmcia/Kconfig" | |
767 | ||
768 | source "drivers/pci/hotplug/Kconfig" | |
769 | ||
f1f389d5 ZW |
770 | config HAS_RAPIDIO |
771 | bool | |
772 | default n | |
773 | ||
774 | config RAPIDIO | |
775 | bool "RapidIO support" | |
388b78ad | 776 | depends on HAS_RAPIDIO || PCI |
f1f389d5 ZW |
777 | help |
778 | If you say Y here, the kernel will include drivers and | |
779 | infrastructure code to support RapidIO interconnect devices. | |
780 | ||
388b78ad AB |
781 | config FSL_RIO |
782 | bool "Freescale Embedded SRIO Controller support" | |
783 | depends on RAPIDIO && HAS_RAPIDIO | |
784 | default "n" | |
785 | ---help--- | |
786 | Include support for RapidIO controller on Freescale embedded | |
787 | processors (MPC8548, MPC8641, etc). | |
788 | ||
f1f389d5 ZW |
789 | source "drivers/rapidio/Kconfig" |
790 | ||
14cf11af PM |
791 | endmenu |
792 | ||
793 | menu "Advanced setup" | |
794 | depends on PPC32 | |
795 | ||
796 | config ADVANCED_OPTIONS | |
797 | bool "Prompt for advanced kernel configuration options" | |
798 | help | |
799 | This option will enable prompting for a variety of advanced kernel | |
800 | configuration options. These options can cause the kernel to not | |
801 | work if they are set incorrectly, but can be used to optimize certain | |
802 | aspects of kernel memory management. | |
803 | ||
804 | Unless you know what you are doing, say N here. | |
805 | ||
806 | comment "Default settings for advanced configuration options are used" | |
807 | depends on !ADVANCED_OPTIONS | |
808 | ||
14cf11af PM |
809 | config LOWMEM_SIZE_BOOL |
810 | bool "Set maximum low memory" | |
811 | depends on ADVANCED_OPTIONS | |
812 | help | |
813 | This option allows you to set the maximum amount of memory which | |
814 | will be used as "low memory", that is, memory which the kernel can | |
815 | access directly, without having to set up a kernel virtual mapping. | |
816 | This can be useful in optimizing the layout of kernel virtual | |
817 | memory. | |
818 | ||
819 | Say N here unless you know what you are doing. | |
820 | ||
821 | config LOWMEM_SIZE | |
822 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
823 | default "0x30000000" | |
824 | ||
96051465 TP |
825 | config LOWMEM_CAM_NUM_BOOL |
826 | bool "Set number of CAMs to use to map low memory" | |
827 | depends on ADVANCED_OPTIONS && FSL_BOOKE | |
828 | help | |
829 | This option allows you to set the maximum number of CAM slots that | |
830 | will be used to map low memory. There are a limited number of slots | |
831 | available and even more limited number that will fit in the L1 MMU. | |
832 | However, using more entries will allow mapping more low memory. This | |
833 | can be useful in optimizing the layout of kernel virtual memory. | |
834 | ||
835 | Say N here unless you know what you are doing. | |
836 | ||
837 | config LOWMEM_CAM_NUM | |
9b71dbd3 | 838 | depends on FSL_BOOKE |
96051465 TP |
839 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
840 | default 3 | |
841 | ||
37dd2bad KG |
842 | config RELOCATABLE |
843 | bool "Build a relocatable kernel (EXPERIMENTAL)" | |
844 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
845 | help | |
846 | This builds a kernel image that is capable of running at the | |
847 | location the kernel is loaded at (some alignment restrictions may | |
848 | exist). | |
849 | ||
850 | One use is for the kexec on panic case where the recovery kernel | |
851 | must live at a different physical address than the primary | |
852 | kernel. | |
853 | ||
854 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
855 | it has been loaded at and the compile time physical addresses | |
856 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
857 | setting can still be useful to bootwrappers that need to know the | |
858 | load location of the kernel (eg. u-boot/mkimage). | |
859 | ||
860 | config PAGE_OFFSET_BOOL | |
861 | bool "Set custom page offset address" | |
862 | depends on ADVANCED_OPTIONS | |
863 | help | |
864 | This option allows you to set the kernel virtual address at which | |
865 | the kernel will map low memory. This can be useful in optimizing | |
866 | the virtual memory layout of the system. | |
867 | ||
868 | Say N here unless you know what you are doing. | |
869 | ||
870 | config PAGE_OFFSET | |
871 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
872 | default "0xc0000000" | |
873 | ||
14cf11af PM |
874 | config KERNEL_START_BOOL |
875 | bool "Set custom kernel base address" | |
876 | depends on ADVANCED_OPTIONS | |
877 | help | |
878 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
879 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
880 | however there are times (like kdump) that one might not want them | |
881 | to be the same. | |
14cf11af PM |
882 | |
883 | Say N here unless you know what you are doing. | |
884 | ||
885 | config KERNEL_START | |
886 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 887 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
f933a41e | 888 | default "0xc2000000" if CRASH_DUMP && !RELOCATABLE |
14cf11af PM |
889 | default "0xc0000000" |
890 | ||
37dd2bad KG |
891 | config PHYSICAL_START_BOOL |
892 | bool "Set physical address where the kernel is loaded" | |
893 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
894 | help | |
895 | This gives the physical address where the kernel is loaded. | |
896 | ||
897 | Say N here unless you know what you are doing. | |
898 | ||
899 | config PHYSICAL_START | |
900 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
f933a41e | 901 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE |
37dd2bad KG |
902 | default "0x00000000" |
903 | ||
904 | config PHYSICAL_ALIGN | |
905 | hex | |
c8f3570b | 906 | default "0x04000000" if FSL_BOOKE |
37dd2bad KG |
907 | help |
908 | This value puts the alignment restrictions on physical address | |
909 | where kernel is loaded and run from. Kernel is compiled for an | |
910 | address which meets above alignment restriction. | |
911 | ||
14cf11af PM |
912 | config TASK_SIZE_BOOL |
913 | bool "Set custom user task size" | |
914 | depends on ADVANCED_OPTIONS | |
915 | help | |
916 | This option allows you to set the amount of virtual address space | |
917 | allocated to user tasks. This can be useful in optimizing the | |
918 | virtual memory layout of the system. | |
919 | ||
920 | Say N here unless you know what you are doing. | |
921 | ||
922 | config TASK_SIZE | |
923 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
924 | default "0x80000000" if PPC_PREP || PPC_8xx |
925 | default "0xc0000000" | |
14cf11af | 926 | |
84532a0f BH |
927 | config CONSISTENT_SIZE_BOOL |
928 | bool "Set custom consistent memory pool size" | |
929 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
930 | help | |
931 | This option allows you to set the size of the | |
932 | consistent memory pool. This pool of virtual memory | |
933 | is used to make consistent memory allocations. | |
934 | ||
935 | config CONSISTENT_SIZE | |
936 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
937 | default "0x00200000" if NOT_COHERENT_CACHE | |
938 | ||
14cf11af PM |
939 | config PIN_TLB |
940 | bool "Pinned Kernel TLBs (860 ONLY)" | |
941 | depends on ADVANCED_OPTIONS && 8xx | |
942 | endmenu | |
943 | ||
cabb5587 | 944 | if PPC64 |
549e8152 PM |
945 | config RELOCATABLE |
946 | bool "Build a relocatable kernel" | |
947 | help | |
948 | This builds a kernel image that is capable of running anywhere | |
949 | in the RMA (real memory area) at any 16k-aligned base address. | |
950 | The kernel is linked as a position-independent executable (PIE) | |
951 | and contains dynamic relocations which are processed early | |
952 | in the bootup process. | |
953 | ||
954 | One use is for the kexec on panic case where the recovery kernel | |
955 | must live at a different physical address than the primary | |
956 | kernel. | |
957 | ||
37dd2bad KG |
958 | config PAGE_OFFSET |
959 | hex | |
960 | default "0xc000000000000000" | |
cabb5587 SR |
961 | config KERNEL_START |
962 | hex | |
eeb2d218 | 963 | default "0xc000000000000000" |
37dd2bad KG |
964 | config PHYSICAL_START |
965 | hex | |
37dd2bad | 966 | default "0x00000000" |
cabb5587 SR |
967 | endif |
968 | ||
14cf11af PM |
969 | source "net/Kconfig" |
970 | ||
971 | source "drivers/Kconfig" | |
972 | ||
973 | source "fs/Kconfig" | |
974 | ||
98658538 LY |
975 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
976 | ||
14cf11af PM |
977 | source "lib/Kconfig" |
978 | ||
14cf11af PM |
979 | source "arch/powerpc/Kconfig.debug" |
980 | ||
981 | source "security/Kconfig" | |
982 | ||
983 | config KEYS_COMPAT | |
984 | bool | |
985 | depends on COMPAT && KEYS | |
986 | default y | |
987 | ||
988 | source "crypto/Kconfig" | |
6f668280 DP |
989 | |
990 | config PPC_CLOCK | |
991 | bool | |
992 | default n | |
9483a578 | 993 | select HAVE_CLK |
1088a209 SM |
994 | |
995 | config PPC_LIB_RHEAP | |
996 | bool | |
997 | ||
bbf45ba5 | 998 | source "arch/powerpc/kvm/Kconfig" |