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14cf11af PM |
1 | # For a description of the syntax of this configuration file, |
2 | # see Documentation/kbuild/kconfig-language.txt. | |
3 | # | |
4 | ||
5 | mainmenu "Linux/PowerPC Kernel Configuration" | |
6 | ||
a0ae9c7c | 7 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 8 | |
14cf11af PM |
9 | config PPC32 |
10 | bool | |
11 | default y if !PPC64 | |
12 | ||
13 | config 64BIT | |
14 | bool | |
15 | default y if PPC64 | |
16 | ||
2578bfae SR |
17 | config WORD_SIZE |
18 | int | |
19 | default 64 if PPC64 | |
20 | default 32 if !PPC64 | |
21 | ||
14cf11af PM |
22 | config PPC_MERGE |
23 | def_bool y | |
24 | ||
600715dc JF |
25 | config ARCH_PHYS_ADDR_T_64BIT |
26 | def_bool PPC64 || PHYS_64BIT | |
27 | ||
14cf11af PM |
28 | config MMU |
29 | bool | |
30 | default y | |
31 | ||
aa3be5f3 TB |
32 | config GENERIC_CMOS_UPDATE |
33 | def_bool y | |
34 | ||
4a4cfe38 TB |
35 | config GENERIC_TIME |
36 | def_bool y | |
37 | ||
38 | config GENERIC_TIME_VSYSCALL | |
39 | def_bool y | |
40 | ||
d831d0b8 TB |
41 | config GENERIC_CLOCKEVENTS |
42 | def_bool y | |
43 | ||
14cf11af PM |
44 | config GENERIC_HARDIRQS |
45 | bool | |
46 | default y | |
47 | ||
988c388a | 48 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 49 | def_bool PPC64 |
50 | ||
0d7012a9 IM |
51 | config IRQ_PER_CPU |
52 | bool | |
53 | default y | |
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 | |
64 | depends on PPC64 | |
65 | default y | |
66 | ||
67 | config LOCKDEP_SUPPORT | |
68 | bool | |
69 | default y | |
70 | ||
14cf11af PM |
71 | config RWSEM_GENERIC_SPINLOCK |
72 | bool | |
73 | ||
74 | config RWSEM_XCHGADD_ALGORITHM | |
75 | bool | |
76 | default y | |
77 | ||
95c354fe NP |
78 | config GENERIC_LOCKBREAK |
79 | bool | |
80 | default y | |
81 | depends on SMP && PREEMPT | |
82 | ||
f0d1b0b3 DH |
83 | config ARCH_HAS_ILOG2_U32 |
84 | bool | |
ef55d53c | 85 | default y |
f0d1b0b3 DH |
86 | |
87 | config ARCH_HAS_ILOG2_U64 | |
88 | bool | |
ef55d53c | 89 | default y if 64BIT |
f0d1b0b3 | 90 | |
e779b2f9 AM |
91 | config GENERIC_HWEIGHT |
92 | bool | |
93 | default y | |
94 | ||
14cf11af PM |
95 | config GENERIC_CALIBRATE_DELAY |
96 | bool | |
97 | default y | |
98 | ||
0a9cb46a JM |
99 | config GENERIC_FIND_NEXT_BIT |
100 | bool | |
101 | default y | |
102 | ||
b7ce3415 AV |
103 | config GENERIC_GPIO |
104 | bool | |
105 | help | |
106 | Generic GPIO API support | |
107 | ||
f057eac0 SR |
108 | config ARCH_NO_VIRT_TO_BUS |
109 | def_bool PPC64 | |
110 | ||
14cf11af PM |
111 | config PPC |
112 | bool | |
113 | default y | |
677aa9f7 | 114 | select HAVE_DYNAMIC_FTRACE |
4e491d14 | 115 | select HAVE_FTRACE |
7444a72e | 116 | select ARCH_WANT_OPTIONAL_GPIOLIB |
ec7748b5 | 117 | select HAVE_IDE |
a1f242ff | 118 | select HAVE_IOREMAP_PROT |
58340a07 | 119 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
3f550096 | 120 | select HAVE_KPROBES |
17ce452f | 121 | select HAVE_ARCH_KGDB |
9edddaa2 | 122 | select HAVE_KRETPROBES |
dec2b0d0 | 123 | select HAVE_ARCH_TRACEHOOK |
d9b2b2a2 | 124 | select HAVE_LMB |
7ff86b03 | 125 | select HAVE_DMA_ATTRS if PPC64 |
b7d7a240 | 126 | select USE_GENERIC_SMP_HELPERS if SMP |
4e491d14 | 127 | select HAVE_OPROFILE |
14cf11af PM |
128 | |
129 | config EARLY_PRINTK | |
130 | bool | |
51d3082f | 131 | default y |
14cf11af PM |
132 | |
133 | config COMPAT | |
134 | bool | |
135 | default y if PPC64 | |
01e31dba | 136 | select COMPAT_BINFMT_ELF |
14cf11af PM |
137 | |
138 | config SYSVIPC_COMPAT | |
139 | bool | |
140 | depends on COMPAT && SYSVIPC | |
141 | default y | |
142 | ||
143 | # All PPC32s use generic nvram driver through ppc_md | |
144 | config GENERIC_NVRAM | |
145 | bool | |
146 | default y if PPC32 | |
147 | ||
148 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
149 | bool | |
150 | default y | |
151 | ||
152 | config ARCH_MAY_HAVE_PC_FDC | |
153 | bool | |
bed59275 | 154 | default !PPC_PSERIES || PCI |
14cf11af | 155 | |
08264cbc KG |
156 | config PPC_OF |
157 | def_bool y | |
158 | ||
97e873e5 SR |
159 | config OF |
160 | def_bool y | |
161 | ||
08264cbc KG |
162 | config PPC_UDBG_16550 |
163 | bool | |
164 | default n | |
165 | ||
08264cbc KG |
166 | config GENERIC_TBSYNC |
167 | bool | |
168 | default y if PPC32 && SMP | |
169 | default n | |
170 | ||
e65e1fc2 AV |
171 | config AUDIT_ARCH |
172 | bool | |
173 | default y | |
174 | ||
73c9ceab JF |
175 | config GENERIC_BUG |
176 | bool | |
177 | default y | |
178 | depends on BUG | |
179 | ||
b3028878 | 180 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 181 | default y if PMAC_APM_EMU |
b3028878 JB |
182 | bool |
183 | ||
f4fc4a5b KG |
184 | config DEFAULT_UIMAGE |
185 | bool | |
186 | help | |
187 | Used to allow a board to specify it wants a uImage built by default | |
188 | default n | |
189 | ||
b09c1644 SW |
190 | config REDBOOT |
191 | bool | |
192 | ||
801e4062 | 193 | config HIBERNATE_32 |
543b9fd3 | 194 | bool |
801e4062 JB |
195 | depends on (PPC_PMAC && !SMP) || BROKEN |
196 | default y | |
197 | ||
198 | config HIBERNATE_64 | |
199 | bool | |
200 | depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL) | |
201 | default y | |
202 | ||
203 | config ARCH_HIBERNATION_POSSIBLE | |
204 | bool | |
205 | depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32) | |
543b9fd3 JB |
206 | default y |
207 | ||
f4cb5700 JB |
208 | config ARCH_SUSPEND_POSSIBLE |
209 | def_bool y | |
d49747bd | 210 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx |
f4cb5700 | 211 | |
4c75a6f4 BH |
212 | config PPC_DCR_NATIVE |
213 | bool | |
214 | default n | |
215 | ||
216 | config PPC_DCR_MMIO | |
217 | bool | |
218 | default n | |
219 | ||
220 | config PPC_DCR | |
221 | bool | |
222 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
223 | default y | |
224 | ||
4c9d2800 BH |
225 | config PPC_OF_PLATFORM_PCI |
226 | bool | |
373a6da1 | 227 | depends on PCI |
4c9d2800 BH |
228 | depends on PPC64 # not supported on 32 bits yet |
229 | default n | |
230 | ||
14cf11af PM |
231 | source "init/Kconfig" |
232 | ||
dc52ddc0 MH |
233 | source "kernel/Kconfig.freezer" |
234 | ||
a2d2e1ec | 235 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 236 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 237 | |
14cf11af PM |
238 | menu "Kernel options" |
239 | ||
240 | config HIGHMEM | |
241 | bool "High memory support" | |
242 | depends on PPC32 | |
243 | ||
1ad74998 | 244 | source kernel/time/Kconfig |
14cf11af PM |
245 | source kernel/Kconfig.hz |
246 | source kernel/Kconfig.preempt | |
247 | source "fs/Kconfig.binfmt" | |
248 | ||
ba72cb8c MG |
249 | config HUGETLB_PAGE_SIZE_VARIABLE |
250 | bool | |
251 | depends on HUGETLB_PAGE | |
252 | default y | |
253 | ||
14cf11af PM |
254 | config MATH_EMULATION |
255 | bool "Math emulation" | |
4d52719a | 256 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
257 | ---help--- |
258 | Some PowerPC chips designed for embedded applications do not have | |
259 | a floating-point unit and therefore do not implement the | |
260 | floating-point instructions in the PowerPC instruction set. If you | |
261 | say Y here, the kernel will include code to emulate a floating-point | |
262 | unit, which will allow programs that use floating-point | |
263 | instructions to run. | |
264 | ||
5dd57a13 SW |
265 | config 8XX_MINIMAL_FPEMU |
266 | bool "Minimal math emulation for 8xx" | |
267 | depends on 8xx && !MATH_EMULATION | |
268 | help | |
269 | Older arch/ppc kernels still emulated a few floating point | |
270 | instructions such as load and store, even when full math | |
271 | emulation is disabled. Say "Y" here if you want to preserve | |
272 | this behavior. | |
273 | ||
274 | It is recommended that you build a soft-float userspace instead. | |
275 | ||
14cf11af | 276 | config IOMMU_VMERGE |
768cc2d3 LV |
277 | bool "Enable IOMMU virtual merging" |
278 | depends on PPC64 | |
279 | default y | |
14cf11af PM |
280 | help |
281 | Cause IO segments sent to a device for DMA to be merged virtually | |
282 | by the IOMMU when they happen to have been allocated contiguously. | |
283 | This doesn't add pressure to the IOMMU allocator. However, some | |
284 | drivers don't support getting large merged segments coming back | |
768cc2d3 LV |
285 | from *_map_sg(). |
286 | ||
287 | Most drivers don't have this problem; it is safe to say Y here. | |
14cf11af | 288 | |
fb3475e9 FT |
289 | config IOMMU_HELPER |
290 | def_bool PPC64 | |
291 | ||
14cf11af PM |
292 | config HOTPLUG_CPU |
293 | bool "Support for enabling/disabling CPUs" | |
294 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
295 | ---help--- | |
296 | Say Y here to be able to disable and re-enable individual | |
297 | CPUs at runtime on SMP machines. | |
298 | ||
299 | Say N if you are unsure. | |
300 | ||
cc57637b YG |
301 | config ARCH_ENABLE_MEMORY_HOTPLUG |
302 | def_bool y | |
303 | ||
a99824f3 BP |
304 | config ARCH_HAS_WALK_MEMORY |
305 | def_bool y | |
306 | ||
1482471d BP |
307 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
308 | def_bool y | |
309 | ||
14cf11af PM |
310 | config KEXEC |
311 | bool "kexec system call (EXPERIMENTAL)" | |
fd4ba7e2 | 312 | depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL |
14cf11af PM |
313 | help |
314 | kexec is a system call that implements the ability to shutdown your | |
315 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 316 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
317 | you can start any kernel with it, not just Linux. |
318 | ||
1f1332f7 | 319 | The name comes from the similarity to the exec system call. |
14cf11af PM |
320 | |
321 | It is an ongoing process to be certain the hardware in a machine | |
322 | is properly shutdown, so do not be surprised if this code does not | |
323 | initially work for you. It may help to enable device hotplugging | |
324 | support. As of this writing the exact hardware interface is | |
325 | strongly in flux, so no good recommendation can be made. | |
326 | ||
e8625d46 | 327 | config CRASH_DUMP |
3420b5da BW |
328 | bool "Build a kdump crash kernel" |
329 | depends on PPC_MULTIPLATFORM && PPC64 | |
e8625d46 HM |
330 | help |
331 | Build a kernel suitable for use as a kdump capture kernel. | |
332 | The kernel will be linked at a different address than normal, and | |
333 | so can only be used for Kdump. | |
334 | ||
335 | Don't change this unless you know what you are doing. | |
336 | ||
242f271c MA |
337 | config PHYP_DUMP |
338 | bool "Hypervisor-assisted dump (EXPERIMENTAL)" | |
339 | depends on PPC_PSERIES && EXPERIMENTAL | |
340 | help | |
341 | Hypervisor-assisted dump is meant to be a kdump replacement | |
342 | offering robustness and speed not possible without system | |
343 | hypervisor assistence. | |
344 | ||
345 | If unsure, say "N" | |
346 | ||
14cf11af PM |
347 | config PPCBUG_NVRAM |
348 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
349 | default y if PPC_PREP | |
350 | ||
351 | config IRQ_ALL_CPUS | |
352 | bool "Distribute interrupts on all CPUs by default" | |
353 | depends on SMP && !MV64360 | |
354 | help | |
355 | This option gives the kernel permission to distribute IRQs across | |
356 | multiple CPUs. Saying N here will route all IRQs to the first | |
357 | CPU. Generally saying Y is safe, although some problems have been | |
358 | reported with SMP Power Macintoshes with this option enabled. | |
359 | ||
ffa27b6b AW |
360 | config NUMA |
361 | bool "NUMA support" | |
362 | depends on PPC64 | |
363 | default y if SMP && PPC_PSERIES | |
364 | ||
c80d79d7 YG |
365 | config NODES_SHIFT |
366 | int | |
367 | default "4" | |
368 | depends on NEED_MULTIPLE_NODES | |
369 | ||
14cf11af PM |
370 | config ARCH_SELECT_MEMORY_MODEL |
371 | def_bool y | |
372 | depends on PPC64 | |
373 | ||
374 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
375 | def_bool y |
376 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 377 | |
45fb6cea | 378 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 379 | def_bool y |
9100b205 | 380 | depends on PPC64 |
d29eff7b | 381 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 382 | |
45fb6cea | 383 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 384 | def_bool y |
78bde53e | 385 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 386 | |
c67c3cb4 | 387 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 388 | def_bool y |
c67c3cb4 MG |
389 | |
390 | source "mm/Kconfig" | |
14cf11af | 391 | |
7e9191da MK |
392 | config ARCH_MEMORY_PROBE |
393 | def_bool y | |
394 | depends on MEMORY_HOTPLUG | |
395 | ||
75167957 AW |
396 | # Some NUMA nodes have memory ranges that span |
397 | # other nodes. Even though a pfn is valid and | |
398 | # between a node's start and end pfns, it may not | |
399 | # reside on that node. See memmap_init_zone() | |
400 | # for details. | |
401 | config NODES_SPAN_OTHER_NODES | |
402 | def_bool y | |
403 | depends on NEED_MULTIPLE_NODES | |
404 | ||
16c2d476 BH |
405 | config PPC_HAS_HASH_64K |
406 | bool | |
407 | depends on PPC64 | |
408 | default n | |
409 | ||
3c726f8d BH |
410 | config PPC_64K_PAGES |
411 | bool "64k page size" | |
863c84b9 | 412 | depends on PPC64 |
16c2d476 | 413 | select PPC_HAS_HASH_64K |
3c726f8d BH |
414 | help |
415 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
416 | without processor support for 64k pages, the kernel will simulate |
417 | them by loading each individual 4k page on demand transparently, | |
418 | while on hardware with such support, it will be used to map | |
419 | normal application pages. | |
3c726f8d | 420 | |
53bcddb9 SR |
421 | config FORCE_MAX_ZONEORDER |
422 | int "Maximum zone order" | |
ebe40c5c | 423 | range 9 64 if PPC_64K_PAGES |
53bcddb9 | 424 | default "9" if PPC_64K_PAGES |
ebe40c5c | 425 | range 13 64 if PPC64 && !PPC_64K_PAGES |
53bcddb9 | 426 | default "13" if PPC64 && !PPC_64K_PAGES |
ebe40c5c | 427 | range 11 64 |
53bcddb9 SR |
428 | default "11" |
429 | help | |
430 | The kernel memory allocator divides physically contiguous memory | |
431 | blocks into "zones", where each zone is a power of two number of | |
432 | pages. This option selects the largest power of two that the kernel | |
433 | keeps in the memory allocator. If you need to allocate very large | |
434 | blocks of physically contiguous memory, then you may need to | |
435 | increase this value. | |
436 | ||
437 | This config option is actually maximum order plus one. For example, | |
438 | a value of 11 means that the largest free memory block is 2^10 pages. | |
439 | ||
440 | The page size is not necessarily 4KB. For example, on 64-bit | |
441 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
442 | this in mind when choosing a value for this option. | |
443 | ||
fa28237c PM |
444 | config PPC_SUBPAGE_PROT |
445 | bool "Support setting protections for 4k subpages" | |
446 | depends on PPC_64K_PAGES | |
447 | help | |
448 | This option adds support for a system call to allow user programs | |
449 | to set access permissions (read/write, readonly, or no access) | |
450 | on the 4k subpages of each 64k page. | |
451 | ||
14cf11af PM |
452 | config SCHED_SMT |
453 | bool "SMT (Hyperthreading) scheduler support" | |
454 | depends on PPC64 && SMP | |
14cf11af PM |
455 | help |
456 | SMT scheduler support improves the CPU scheduler's decision making | |
457 | when dealing with POWER5 cpus at a cost of slightly increased | |
458 | overhead in some places. If unsure say N here. | |
459 | ||
460 | config PROC_DEVICETREE | |
5f296755 PM |
461 | bool "Support for device tree in /proc" |
462 | depends on PROC_FS | |
14cf11af PM |
463 | help |
464 | This option adds a device-tree directory under /proc which contains | |
465 | an image of the device tree that the kernel copies from Open | |
5f296755 | 466 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 467 | |
14cf11af PM |
468 | config CMDLINE_BOOL |
469 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
470 | |
471 | config CMDLINE | |
472 | string "Initial kernel command string" | |
473 | depends on CMDLINE_BOOL | |
474 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
475 | help | |
476 | On some platforms, there is currently no way for the boot loader to | |
477 | pass arguments to the kernel. For these platforms, you can supply | |
478 | some command-line options at build time by entering them here. In | |
479 | most cases you will need to specify the root device here. | |
480 | ||
c356aa45 GL |
481 | config EXTRA_TARGETS |
482 | string "Additional default image types" | |
483 | help | |
484 | List additional targets to be built by the bootwrapper here (separated | |
485 | by spaces). This is useful for targets that depend of device tree | |
486 | files in the .dts directory. | |
487 | ||
488 | Targets in this list will be build as part of the default build | |
489 | target, or when the user does a 'make zImage' or a | |
490 | 'make zImage.initrd'. | |
491 | ||
492 | If unsure, leave blank | |
493 | ||
14cf11af | 494 | if !44x || BROKEN |
b28f5081 JB |
495 | config ARCH_WANTS_FREEZER_CONTROL |
496 | def_bool y | |
497 | depends on ADB_PMU | |
498 | ||
14cf11af PM |
499 | source kernel/power/Kconfig |
500 | endif | |
501 | ||
502 | config SECCOMP | |
503 | bool "Enable seccomp to safely compute untrusted bytecode" | |
504 | depends on PROC_FS | |
505 | default y | |
506 | help | |
507 | This kernel feature is useful for number crunching applications | |
508 | that may need to compute untrusted bytecode during their | |
509 | execution. By using pipes or other transports made available to | |
510 | the process as file descriptors supporting the read/write | |
511 | syscalls, it's possible to isolate those applications in | |
512 | their own address space using seccomp. Once seccomp is | |
513 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
514 | and the task is only allowed to execute a few safe syscalls | |
515 | defined by each seccomp mode. | |
516 | ||
517 | If unsure, say Y. Only embedded should say N here. | |
518 | ||
519 | endmenu | |
520 | ||
521 | config ISA_DMA_API | |
522 | bool | |
373a6da1 | 523 | default !PPC_ISERIES || PCI |
14cf11af PM |
524 | |
525 | menu "Bus options" | |
526 | ||
527 | config ISA | |
528 | bool "Support for ISA-bus hardware" | |
529 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 530 | select PPC_I8259 |
14cf11af PM |
531 | help |
532 | Find out whether you have ISA slots on your motherboard. ISA is the | |
533 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
534 | inside your box. If you have an Apple machine, say N here; if you | |
535 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
536 | you have an embedded board, consult your board documentation. | |
537 | ||
5ac6da66 CL |
538 | config ZONE_DMA |
539 | bool | |
540 | default y | |
541 | ||
14cf11af PM |
542 | config GENERIC_ISA_DMA |
543 | bool | |
544 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
545 | default y | |
546 | ||
25635c71 PM |
547 | config PPC_INDIRECT_PCI |
548 | bool | |
549 | depends on PCI | |
63dafe57 | 550 | default y if 40x || 44x |
25635c71 PM |
551 | default n |
552 | ||
14cf11af PM |
553 | config EISA |
554 | bool | |
555 | ||
556 | config SBUS | |
557 | bool | |
558 | ||
08264cbc KG |
559 | config FSL_SOC |
560 | bool | |
561 | ||
55c44991 RZ |
562 | config FSL_PCI |
563 | bool | |
564 | select PPC_INDIRECT_PCI | |
565 | ||
2a706919 SR |
566 | config 4xx_SOC |
567 | bool | |
568 | ||
acaa7aa3 AV |
569 | config FSL_LBC |
570 | bool | |
571 | help | |
572 | Freescale Localbus support | |
573 | ||
83ff9dcf AV |
574 | config FSL_GTM |
575 | bool | |
576 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
577 | help | |
578 | Freescale General-purpose Timers support | |
579 | ||
14cf11af PM |
580 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
581 | config MCA | |
582 | bool | |
583 | ||
b500563b JR |
584 | # Platforms that what PCI turned unconditionally just do select PCI |
585 | # in their config node. Platforms that want to choose at config | |
586 | # time should select PPC_PCI_CHOICE | |
587 | config PPC_PCI_CHOICE | |
588 | bool | |
589 | ||
14cf11af | 590 | config PCI |
b500563b JR |
591 | bool "PCI support" if PPC_PCI_CHOICE |
592 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
53158620 | 593 | && !PPC_85xx && !PPC_86xx |
f21f49ea | 594 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 595 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 596 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
597 | help |
598 | Find out whether your system includes a PCI bus. PCI is the name of | |
599 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
600 | your box. If you say Y here, the kernel will include drivers and | |
601 | infrastructure code to support PCI bus devices. | |
602 | ||
603 | config PCI_DOMAINS | |
36e23590 MW |
604 | def_bool PCI |
605 | ||
606 | config PCI_SYSCALL | |
607 | def_bool PCI | |
14cf11af | 608 | |
14cf11af PM |
609 | config PCI_QSPAN |
610 | bool "QSpan PCI" | |
611 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 612 | select PPC_I8259 |
14cf11af PM |
613 | help |
614 | Say Y here if you have a system based on a Motorola 8xx-series | |
615 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
616 | ||
617 | config PCI_8260 | |
618 | bool | |
619 | depends on PCI && 8260 | |
25635c71 | 620 | select PPC_INDIRECT_PCI |
14cf11af PM |
621 | default y |
622 | ||
623 | config 8260_PCI9 | |
4a3ecc62 | 624 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 625 | depends on PCI_8260 && !8272 |
14cf11af PM |
626 | default y |
627 | ||
628 | choice | |
4a3ecc62 | 629 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
630 | depends on 8260_PCI9 |
631 | ||
632 | config 8260_PCI9_IDMA1 | |
633 | bool "IDMA1" | |
634 | ||
635 | config 8260_PCI9_IDMA2 | |
636 | bool "IDMA2" | |
637 | ||
638 | config 8260_PCI9_IDMA3 | |
639 | bool "IDMA3" | |
640 | ||
641 | config 8260_PCI9_IDMA4 | |
642 | bool "IDMA4" | |
643 | ||
644 | endchoice | |
645 | ||
bb53bb3d JM |
646 | source "drivers/pci/pcie/Kconfig" |
647 | ||
14cf11af PM |
648 | source "drivers/pci/Kconfig" |
649 | ||
650 | source "drivers/pcmcia/Kconfig" | |
651 | ||
652 | source "drivers/pci/hotplug/Kconfig" | |
653 | ||
f1f389d5 ZW |
654 | config HAS_RAPIDIO |
655 | bool | |
656 | default n | |
657 | ||
658 | config RAPIDIO | |
659 | bool "RapidIO support" | |
660 | depends on HAS_RAPIDIO | |
661 | help | |
662 | If you say Y here, the kernel will include drivers and | |
663 | infrastructure code to support RapidIO interconnect devices. | |
664 | ||
665 | source "drivers/rapidio/Kconfig" | |
666 | ||
14cf11af PM |
667 | endmenu |
668 | ||
669 | menu "Advanced setup" | |
670 | depends on PPC32 | |
671 | ||
672 | config ADVANCED_OPTIONS | |
673 | bool "Prompt for advanced kernel configuration options" | |
674 | help | |
675 | This option will enable prompting for a variety of advanced kernel | |
676 | configuration options. These options can cause the kernel to not | |
677 | work if they are set incorrectly, but can be used to optimize certain | |
678 | aspects of kernel memory management. | |
679 | ||
680 | Unless you know what you are doing, say N here. | |
681 | ||
682 | comment "Default settings for advanced configuration options are used" | |
683 | depends on !ADVANCED_OPTIONS | |
684 | ||
14cf11af PM |
685 | config LOWMEM_SIZE_BOOL |
686 | bool "Set maximum low memory" | |
687 | depends on ADVANCED_OPTIONS | |
688 | help | |
689 | This option allows you to set the maximum amount of memory which | |
690 | will be used as "low memory", that is, memory which the kernel can | |
691 | access directly, without having to set up a kernel virtual mapping. | |
692 | This can be useful in optimizing the layout of kernel virtual | |
693 | memory. | |
694 | ||
695 | Say N here unless you know what you are doing. | |
696 | ||
697 | config LOWMEM_SIZE | |
698 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
699 | default "0x30000000" | |
700 | ||
37dd2bad KG |
701 | config RELOCATABLE |
702 | bool "Build a relocatable kernel (EXPERIMENTAL)" | |
703 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
704 | help | |
705 | This builds a kernel image that is capable of running at the | |
706 | location the kernel is loaded at (some alignment restrictions may | |
707 | exist). | |
708 | ||
709 | One use is for the kexec on panic case where the recovery kernel | |
710 | must live at a different physical address than the primary | |
711 | kernel. | |
712 | ||
713 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
714 | it has been loaded at and the compile time physical addresses | |
715 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
716 | setting can still be useful to bootwrappers that need to know the | |
717 | load location of the kernel (eg. u-boot/mkimage). | |
718 | ||
719 | config PAGE_OFFSET_BOOL | |
720 | bool "Set custom page offset address" | |
721 | depends on ADVANCED_OPTIONS | |
722 | help | |
723 | This option allows you to set the kernel virtual address at which | |
724 | the kernel will map low memory. This can be useful in optimizing | |
725 | the virtual memory layout of the system. | |
726 | ||
727 | Say N here unless you know what you are doing. | |
728 | ||
729 | config PAGE_OFFSET | |
730 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
731 | default "0xc0000000" | |
732 | ||
14cf11af PM |
733 | config KERNEL_START_BOOL |
734 | bool "Set custom kernel base address" | |
735 | depends on ADVANCED_OPTIONS | |
736 | help | |
737 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
738 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
739 | however there are times (like kdump) that one might not want them | |
740 | to be the same. | |
14cf11af PM |
741 | |
742 | Say N here unless you know what you are doing. | |
743 | ||
744 | config KERNEL_START | |
745 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad KG |
746 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
747 | default "0xc2000000" if CRASH_DUMP | |
14cf11af PM |
748 | default "0xc0000000" |
749 | ||
37dd2bad KG |
750 | config PHYSICAL_START_BOOL |
751 | bool "Set physical address where the kernel is loaded" | |
752 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
753 | help | |
754 | This gives the physical address where the kernel is loaded. | |
755 | ||
756 | Say N here unless you know what you are doing. | |
757 | ||
758 | config PHYSICAL_START | |
759 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
760 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP | |
761 | default "0x00000000" | |
762 | ||
763 | config PHYSICAL_ALIGN | |
764 | hex | |
765 | default "0x10000000" if FSL_BOOKE | |
766 | help | |
767 | This value puts the alignment restrictions on physical address | |
768 | where kernel is loaded and run from. Kernel is compiled for an | |
769 | address which meets above alignment restriction. | |
770 | ||
14cf11af PM |
771 | config TASK_SIZE_BOOL |
772 | bool "Set custom user task size" | |
773 | depends on ADVANCED_OPTIONS | |
774 | help | |
775 | This option allows you to set the amount of virtual address space | |
776 | allocated to user tasks. This can be useful in optimizing the | |
777 | virtual memory layout of the system. | |
778 | ||
779 | Say N here unless you know what you are doing. | |
780 | ||
781 | config TASK_SIZE | |
782 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
783 | default "0x80000000" if PPC_PREP || PPC_8xx |
784 | default "0xc0000000" | |
14cf11af PM |
785 | |
786 | config CONSISTENT_START_BOOL | |
787 | bool "Set custom consistent memory pool address" | |
788 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
789 | help | |
790 | This option allows you to set the base virtual address | |
4b3f686d | 791 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
792 | memory is used to make consistent memory allocations. |
793 | ||
794 | config CONSISTENT_START | |
795 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
ccf0d68e | 796 | default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) |
14cf11af PM |
797 | default "0xff100000" if NOT_COHERENT_CACHE |
798 | ||
799 | config CONSISTENT_SIZE_BOOL | |
800 | bool "Set custom consistent memory pool size" | |
801 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
802 | help | |
4b3f686d | 803 | This option allows you to set the size of the |
14cf11af PM |
804 | consistent memory pool. This pool of virtual memory |
805 | is used to make consistent memory allocations. | |
806 | ||
807 | config CONSISTENT_SIZE | |
808 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
809 | default "0x00200000" if NOT_COHERENT_CACHE | |
810 | ||
14cf11af PM |
811 | config PIN_TLB |
812 | bool "Pinned Kernel TLBs (860 ONLY)" | |
813 | depends on ADVANCED_OPTIONS && 8xx | |
814 | endmenu | |
815 | ||
cabb5587 | 816 | if PPC64 |
549e8152 PM |
817 | config RELOCATABLE |
818 | bool "Build a relocatable kernel" | |
819 | help | |
820 | This builds a kernel image that is capable of running anywhere | |
821 | in the RMA (real memory area) at any 16k-aligned base address. | |
822 | The kernel is linked as a position-independent executable (PIE) | |
823 | and contains dynamic relocations which are processed early | |
824 | in the bootup process. | |
825 | ||
826 | One use is for the kexec on panic case where the recovery kernel | |
827 | must live at a different physical address than the primary | |
828 | kernel. | |
829 | ||
37dd2bad KG |
830 | config PAGE_OFFSET |
831 | hex | |
832 | default "0xc000000000000000" | |
cabb5587 SR |
833 | config KERNEL_START |
834 | hex | |
37dd2bad | 835 | default "0xc000000002000000" if CRASH_DUMP |
eeb2d218 | 836 | default "0xc000000000000000" |
37dd2bad KG |
837 | config PHYSICAL_START |
838 | hex | |
839 | default "0x02000000" if CRASH_DUMP | |
840 | default "0x00000000" | |
cabb5587 SR |
841 | endif |
842 | ||
14cf11af PM |
843 | source "net/Kconfig" |
844 | ||
845 | source "drivers/Kconfig" | |
846 | ||
847 | source "fs/Kconfig" | |
848 | ||
849 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
850 | ||
851 | # XXX source "arch/ppc/8260_io/Kconfig" | |
852 | ||
98658538 LY |
853 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
854 | ||
14cf11af PM |
855 | source "lib/Kconfig" |
856 | ||
14cf11af PM |
857 | source "arch/powerpc/Kconfig.debug" |
858 | ||
859 | source "security/Kconfig" | |
860 | ||
861 | config KEYS_COMPAT | |
862 | bool | |
863 | depends on COMPAT && KEYS | |
864 | default y | |
865 | ||
866 | source "crypto/Kconfig" | |
6f668280 DP |
867 | |
868 | config PPC_CLOCK | |
869 | bool | |
870 | default n | |
9483a578 | 871 | select HAVE_CLK |
1088a209 SM |
872 | |
873 | config PPC_LIB_RHEAP | |
874 | bool | |
875 | ||
bbf45ba5 | 876 | source "arch/powerpc/kvm/Kconfig" |