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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 | ||
7 | config PPC64 | |
8 | bool "64-bit kernel" | |
9 | default n | |
10 | help | |
11 | This option selects whether a 32-bit or a 64-bit kernel | |
12 | will be built. | |
13 | ||
17e638bc JB |
14 | config PPC_PM_NEEDS_RTC_LIB |
15 | bool | |
16 | select RTC_LIB | |
17 | default y if PM | |
18 | ||
14cf11af PM |
19 | config PPC32 |
20 | bool | |
21 | default y if !PPC64 | |
22 | ||
23 | config 64BIT | |
24 | bool | |
25 | default y if PPC64 | |
26 | ||
27 | config PPC_MERGE | |
28 | def_bool y | |
29 | ||
30 | config MMU | |
31 | bool | |
32 | default y | |
33 | ||
14cf11af PM |
34 | config GENERIC_HARDIRQS |
35 | bool | |
36 | default y | |
37 | ||
0d7012a9 IM |
38 | config IRQ_PER_CPU |
39 | bool | |
40 | default y | |
41 | ||
14cf11af PM |
42 | config RWSEM_GENERIC_SPINLOCK |
43 | bool | |
44 | ||
45 | config RWSEM_XCHGADD_ALGORITHM | |
46 | bool | |
47 | default y | |
48 | ||
f0d1b0b3 DH |
49 | config ARCH_HAS_ILOG2_U32 |
50 | bool | |
ef55d53c | 51 | default y |
f0d1b0b3 DH |
52 | |
53 | config ARCH_HAS_ILOG2_U64 | |
54 | bool | |
ef55d53c | 55 | default y if 64BIT |
f0d1b0b3 | 56 | |
e779b2f9 AM |
57 | config GENERIC_HWEIGHT |
58 | bool | |
59 | default y | |
60 | ||
14cf11af PM |
61 | config GENERIC_CALIBRATE_DELAY |
62 | bool | |
63 | default y | |
64 | ||
0a9cb46a JM |
65 | config GENERIC_FIND_NEXT_BIT |
66 | bool | |
67 | default y | |
68 | ||
14cf11af PM |
69 | config PPC |
70 | bool | |
71 | default y | |
72 | ||
73 | config EARLY_PRINTK | |
74 | bool | |
51d3082f | 75 | default y |
14cf11af PM |
76 | |
77 | config COMPAT | |
78 | bool | |
79 | default y if PPC64 | |
80 | ||
81 | config SYSVIPC_COMPAT | |
82 | bool | |
83 | depends on COMPAT && SYSVIPC | |
84 | default y | |
85 | ||
86 | # All PPC32s use generic nvram driver through ppc_md | |
87 | config GENERIC_NVRAM | |
88 | bool | |
89 | default y if PPC32 | |
90 | ||
91 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
92 | bool | |
93 | default y | |
94 | ||
95 | config ARCH_MAY_HAVE_PC_FDC | |
96 | bool | |
bed59275 | 97 | default !PPC_PSERIES || PCI |
14cf11af | 98 | |
08264cbc KG |
99 | config PPC_OF |
100 | def_bool y | |
101 | ||
102 | config PPC_UDBG_16550 | |
103 | bool | |
104 | default n | |
105 | ||
08264cbc KG |
106 | config GENERIC_TBSYNC |
107 | bool | |
108 | default y if PPC32 && SMP | |
109 | default n | |
110 | ||
e65e1fc2 AV |
111 | config AUDIT_ARCH |
112 | bool | |
113 | default y | |
114 | ||
73c9ceab JF |
115 | config GENERIC_BUG |
116 | bool | |
117 | default y | |
118 | depends on BUG | |
119 | ||
f4fc4a5b KG |
120 | config DEFAULT_UIMAGE |
121 | bool | |
122 | help | |
123 | Used to allow a board to specify it wants a uImage built by default | |
124 | default n | |
125 | ||
14cf11af PM |
126 | menu "Processor support" |
127 | choice | |
128 | prompt "Processor Type" | |
129 | depends on PPC32 | |
130 | default 6xx | |
131 | ||
08264cbc | 132 | config CLASSIC32 |
650f3289 | 133 | bool "52xx/6xx/7xx/74xx" |
14cf11af | 134 | select PPC_FPU |
08264cbc | 135 | select 6xx |
14cf11af PM |
136 | help |
137 | There are four families of PowerPC chips supported. The more common | |
138 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | |
139 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | |
140 | embedded versions (403 and 405) and the high end 64 bit Power | |
141 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | |
650f3289 GL |
142 | |
143 | This option is the catch-all for 6xx types, including some of the | |
144 | embedded versions. Unless there is see an option for the specific | |
145 | chip family you are using, you want this option. | |
146 | ||
147 | You do not want this if you are building a kernel for a 64 bit | |
148 | IBM RS/6000 or an Apple G5, choose 6xx. | |
149 | ||
150 | If unsure, select this option | |
14cf11af | 151 | |
14cf11af PM |
152 | Note that the kernel runs in 32-bit mode even on 64-bit chips. |
153 | ||
14cf11af PM |
154 | config PPC_82xx |
155 | bool "Freescale 82xx" | |
08264cbc KG |
156 | select 6xx |
157 | select PPC_FPU | |
14cf11af PM |
158 | |
159 | config PPC_83xx | |
160 | bool "Freescale 83xx" | |
08264cbc KG |
161 | select 6xx |
162 | select FSL_SOC | |
163 | select 83xx | |
164 | select PPC_FPU | |
14cf11af | 165 | |
63dafe57 BB |
166 | config PPC_85xx |
167 | bool "Freescale 85xx" | |
168 | select E500 | |
169 | select FSL_SOC | |
170 | select 85xx | |
171 | ||
c9b484b5 JL |
172 | config PPC_86xx |
173 | bool "Freescale 86xx" | |
174 | select 6xx | |
175 | select FSL_SOC | |
176 | select PPC_FPU | |
177 | select ALTIVEC | |
178 | help | |
179 | The Freescale E600 SoCs have 74xx cores. | |
180 | ||
5902ebce VB |
181 | config PPC_8xx |
182 | bool "Freescale 8xx" | |
183 | select FSL_SOC | |
184 | select 8xx | |
185 | ||
14cf11af PM |
186 | config 40x |
187 | bool "AMCC 40x" | |
4c75a6f4 | 188 | select PPC_DCR_NATIVE |
14cf11af PM |
189 | |
190 | config 44x | |
191 | bool "AMCC 44x" | |
4c75a6f4 | 192 | select PPC_DCR_NATIVE |
14cf11af | 193 | |
14cf11af PM |
194 | |
195 | config E200 | |
196 | bool "Freescale e200" | |
197 | ||
14cf11af PM |
198 | endchoice |
199 | ||
200 | config POWER4_ONLY | |
201 | bool "Optimize for POWER4" | |
187a0067 | 202 | depends on PPC64 |
14cf11af PM |
203 | default n |
204 | ---help--- | |
205 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
206 | The resulting binary will not work on POWER3 or RS64 processors | |
207 | when compiled with binutils 2.15 or later. | |
208 | ||
209 | config POWER3 | |
210 | bool | |
187a0067 | 211 | depends on PPC64 |
14cf11af PM |
212 | default y if !POWER4_ONLY |
213 | ||
214 | config POWER4 | |
187a0067 | 215 | depends on PPC64 |
14cf11af PM |
216 | def_bool y |
217 | ||
08264cbc KG |
218 | config 6xx |
219 | bool | |
220 | ||
5902ebce VB |
221 | # this is temp to handle compat with arch=ppc |
222 | config 8xx | |
223 | bool | |
224 | ||
08264cbc KG |
225 | # this is temp to handle compat with arch=ppc |
226 | config 83xx | |
227 | bool | |
228 | ||
63dafe57 BB |
229 | # this is temp to handle compat with arch=ppc |
230 | config 85xx | |
231 | bool | |
232 | ||
233 | config E500 | |
234 | bool | |
235 | ||
14cf11af | 236 | config PPC_FPU |
187a0067 PM |
237 | bool |
238 | default y if PPC64 | |
14cf11af | 239 | |
4c75a6f4 BH |
240 | config PPC_DCR_NATIVE |
241 | bool | |
242 | default n | |
243 | ||
244 | config PPC_DCR_MMIO | |
245 | bool | |
246 | default n | |
247 | ||
248 | config PPC_DCR | |
249 | bool | |
250 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
251 | default y | |
252 | ||
4c9d2800 BH |
253 | config PPC_OF_PLATFORM_PCI |
254 | bool | |
255 | depends on PPC64 # not supported on 32 bits yet | |
256 | default n | |
257 | ||
14cf11af PM |
258 | config BOOKE |
259 | bool | |
260 | depends on E200 || E500 | |
261 | default y | |
262 | ||
263 | config FSL_BOOKE | |
264 | bool | |
265 | depends on E200 || E500 | |
266 | default y | |
267 | ||
268 | config PTE_64BIT | |
269 | bool | |
270 | depends on 44x || E500 | |
271 | default y if 44x | |
272 | default y if E500 && PHYS_64BIT | |
273 | ||
274 | config PHYS_64BIT | |
275 | bool 'Large physical address support' if E500 | |
276 | depends on 44x || E500 | |
3d1ea8e8 | 277 | select RESOURCES_64BIT |
14cf11af PM |
278 | default y if 44x |
279 | ---help--- | |
280 | This option enables kernel support for larger than 32-bit physical | |
281 | addresses. This features is not be available on all e500 cores. | |
282 | ||
283 | If in doubt, say N here. | |
284 | ||
285 | config ALTIVEC | |
286 | bool "AltiVec Support" | |
08264cbc | 287 | depends on CLASSIC32 || POWER4 |
14cf11af PM |
288 | ---help--- |
289 | This option enables kernel support for the Altivec extensions to the | |
290 | PowerPC processor. The kernel currently supports saving and restoring | |
291 | altivec registers, and turning on the 'altivec enable' bit so user | |
292 | processes can execute altivec instructions. | |
293 | ||
294 | This option is only usefully if you have a processor that supports | |
295 | altivec (G4, otherwise known as 74xx series), but does not have | |
296 | any affect on a non-altivec cpu (it does, however add code to the | |
297 | kernel). | |
298 | ||
299 | If in doubt, say Y here. | |
300 | ||
301 | config SPE | |
302 | bool "SPE Support" | |
303 | depends on E200 || E500 | |
63dafe57 | 304 | default y |
14cf11af PM |
305 | ---help--- |
306 | This option enables kernel support for the Signal Processing | |
307 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
308 | supports saving and restoring SPE registers, and turning on the | |
309 | 'spe enable' bit so user processes can execute SPE instructions. | |
310 | ||
311 | This option is only useful if you have a processor that supports | |
312 | SPE (e500, otherwise known as 85xx series), but does not have any | |
313 | effect on a non-spe cpu (it does, however add code to the kernel). | |
314 | ||
315 | If in doubt, say Y here. | |
316 | ||
317 | config PPC_STD_MMU | |
318 | bool | |
319 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
320 | default y | |
321 | ||
322 | config PPC_STD_MMU_32 | |
323 | def_bool y | |
324 | depends on PPC_STD_MMU && PPC32 | |
325 | ||
c6622f63 PM |
326 | config VIRT_CPU_ACCOUNTING |
327 | bool "Deterministic task and CPU time accounting" | |
328 | depends on PPC64 | |
329 | default y | |
330 | help | |
331 | Select this option to enable more accurate task and CPU time | |
332 | accounting. This is done by reading a CPU counter on each | |
333 | kernel entry and exit and on transitions within the kernel | |
334 | between system, softirq and hardirq state, so there is a | |
335 | small performance impact. This also enables accounting of | |
336 | stolen time on logically-partitioned systems running on | |
337 | IBM POWER5-based machines. | |
338 | ||
339 | If in doubt, say Y here. | |
340 | ||
14cf11af PM |
341 | config SMP |
342 | depends on PPC_STD_MMU | |
343 | bool "Symmetric multi-processing support" | |
344 | ---help--- | |
345 | This enables support for systems with more than one CPU. If you have | |
346 | a system with only one CPU, say N. If you have a system with more | |
347 | than one CPU, say Y. Note that the kernel does not currently | |
348 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
349 | since they have inadequate hardware support for multiprocessor | |
350 | operation. | |
351 | ||
352 | If you say N here, the kernel will run on single and multiprocessor | |
353 | machines, but will use only one CPU of a multiprocessor machine. If | |
354 | you say Y here, the kernel will run on single-processor machines. | |
355 | On a single-processor machine, the kernel will run faster if you say | |
356 | N here. | |
357 | ||
358 | If you don't know what to do here, say N. | |
359 | ||
360 | config NR_CPUS | |
e8a167ac | 361 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
362 | range 2 128 |
363 | depends on SMP | |
364 | default "32" if PPC64 | |
365 | default "4" | |
366 | ||
367 | config NOT_COHERENT_CACHE | |
368 | bool | |
369 | depends on 4xx || 8xx || E200 | |
370 | default y | |
371 | endmenu | |
372 | ||
373 | source "init/Kconfig" | |
374 | ||
4330f5da | 375 | source "arch/powerpc/platforms/Kconfig" |
14cf11af PM |
376 | |
377 | source arch/powerpc/platforms/embedded6xx/Kconfig | |
378 | source arch/powerpc/platforms/4xx/Kconfig | |
ed943c1f | 379 | source arch/powerpc/platforms/82xx/Kconfig |
08264cbc | 380 | source arch/powerpc/platforms/83xx/Kconfig |
14cf11af | 381 | source arch/powerpc/platforms/85xx/Kconfig |
c9b484b5 | 382 | source arch/powerpc/platforms/86xx/Kconfig |
14cf11af PM |
383 | source arch/powerpc/platforms/8xx/Kconfig |
384 | ||
385 | menu "Kernel options" | |
386 | ||
387 | config HIGHMEM | |
388 | bool "High memory support" | |
389 | depends on PPC32 | |
390 | ||
391 | source kernel/Kconfig.hz | |
392 | source kernel/Kconfig.preempt | |
393 | source "fs/Kconfig.binfmt" | |
394 | ||
395 | # We optimistically allocate largepages from the VM, so make the limit | |
396 | # large enough (16MB). This badly named config option is actually | |
397 | # max order + 1 | |
398 | config FORCE_MAX_ZONEORDER | |
399 | int | |
400 | depends on PPC64 | |
02864867 | 401 | default "9" if PPC_64K_PAGES |
14cf11af PM |
402 | default "13" |
403 | ||
404 | config MATH_EMULATION | |
405 | bool "Math emulation" | |
4d52719a | 406 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
407 | ---help--- |
408 | Some PowerPC chips designed for embedded applications do not have | |
409 | a floating-point unit and therefore do not implement the | |
410 | floating-point instructions in the PowerPC instruction set. If you | |
411 | say Y here, the kernel will include code to emulate a floating-point | |
412 | unit, which will allow programs that use floating-point | |
413 | instructions to run. | |
414 | ||
415 | config IOMMU_VMERGE | |
416 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
417 | depends on EXPERIMENTAL && PPC64 | |
418 | default n | |
419 | help | |
420 | Cause IO segments sent to a device for DMA to be merged virtually | |
421 | by the IOMMU when they happen to have been allocated contiguously. | |
422 | This doesn't add pressure to the IOMMU allocator. However, some | |
423 | drivers don't support getting large merged segments coming back | |
424 | from *_map_sg(). Say Y if you know the drivers you are using are | |
425 | properly handling this case. | |
426 | ||
427 | config HOTPLUG_CPU | |
428 | bool "Support for enabling/disabling CPUs" | |
429 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
430 | ---help--- | |
431 | Say Y here to be able to disable and re-enable individual | |
432 | CPUs at runtime on SMP machines. | |
433 | ||
434 | Say N if you are unsure. | |
435 | ||
cc57637b YG |
436 | config ARCH_ENABLE_MEMORY_HOTPLUG |
437 | def_bool y | |
438 | ||
14cf11af PM |
439 | config KEXEC |
440 | bool "kexec system call (EXPERIMENTAL)" | |
441 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
442 | help | |
443 | kexec is a system call that implements the ability to shutdown your | |
444 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 445 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
446 | you can start any kernel with it, not just Linux. |
447 | ||
1f1332f7 | 448 | The name comes from the similarity to the exec system call. |
14cf11af PM |
449 | |
450 | It is an ongoing process to be certain the hardware in a machine | |
451 | is properly shutdown, so do not be surprised if this code does not | |
452 | initially work for you. It may help to enable device hotplugging | |
453 | support. As of this writing the exact hardware interface is | |
454 | strongly in flux, so no good recommendation can be made. | |
455 | ||
e8625d46 | 456 | config CRASH_DUMP |
cd9c99d7 | 457 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
458 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
459 | help | |
460 | Build a kernel suitable for use as a kdump capture kernel. | |
461 | The kernel will be linked at a different address than normal, and | |
462 | so can only be used for Kdump. | |
463 | ||
464 | Don't change this unless you know what you are doing. | |
465 | ||
14cf11af PM |
466 | config EMBEDDEDBOOT |
467 | bool | |
468 | depends on 8xx || 8260 | |
469 | default y | |
470 | ||
471 | config PC_KEYBOARD | |
472 | bool "PC PS/2 style Keyboard" | |
473 | depends on 4xx || CPM2 | |
474 | ||
475 | config PPCBUG_NVRAM | |
476 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
477 | default y if PPC_PREP | |
478 | ||
479 | config IRQ_ALL_CPUS | |
480 | bool "Distribute interrupts on all CPUs by default" | |
481 | depends on SMP && !MV64360 | |
482 | help | |
483 | This option gives the kernel permission to distribute IRQs across | |
484 | multiple CPUs. Saying N here will route all IRQs to the first | |
485 | CPU. Generally saying Y is safe, although some problems have been | |
486 | reported with SMP Power Macintoshes with this option enabled. | |
487 | ||
14cf11af | 488 | |
ffa27b6b AW |
489 | config NUMA |
490 | bool "NUMA support" | |
491 | depends on PPC64 | |
492 | default y if SMP && PPC_PSERIES | |
493 | ||
c80d79d7 YG |
494 | config NODES_SHIFT |
495 | int | |
496 | default "4" | |
497 | depends on NEED_MULTIPLE_NODES | |
498 | ||
14cf11af PM |
499 | config ARCH_SELECT_MEMORY_MODEL |
500 | def_bool y | |
501 | depends on PPC64 | |
502 | ||
503 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
504 | def_bool y |
505 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 506 | |
45fb6cea | 507 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 508 | def_bool y |
9100b205 | 509 | depends on PPC64 |
14cf11af | 510 | |
45fb6cea | 511 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 512 | def_bool y |
78bde53e | 513 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 514 | |
c67c3cb4 | 515 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 516 | def_bool y |
c67c3cb4 MG |
517 | |
518 | source "mm/Kconfig" | |
14cf11af | 519 | |
7e9191da MK |
520 | config ARCH_MEMORY_PROBE |
521 | def_bool y | |
522 | depends on MEMORY_HOTPLUG | |
523 | ||
75167957 AW |
524 | # Some NUMA nodes have memory ranges that span |
525 | # other nodes. Even though a pfn is valid and | |
526 | # between a node's start and end pfns, it may not | |
527 | # reside on that node. See memmap_init_zone() | |
528 | # for details. | |
529 | config NODES_SPAN_OTHER_NODES | |
530 | def_bool y | |
531 | depends on NEED_MULTIPLE_NODES | |
532 | ||
3c726f8d BH |
533 | config PPC_64K_PAGES |
534 | bool "64k page size" | |
863c84b9 | 535 | depends on PPC64 |
3c726f8d BH |
536 | help |
537 | This option changes the kernel logical page size to 64k. On machines | |
538 | without processor support for 64k pages, the kernel will simulate | |
539 | them by loading each individual 4k page on demand transparently, | |
540 | while on hardware with such support, it will be used to map | |
541 | normal application pages. | |
542 | ||
14cf11af PM |
543 | config SCHED_SMT |
544 | bool "SMT (Hyperthreading) scheduler support" | |
545 | depends on PPC64 && SMP | |
14cf11af PM |
546 | help |
547 | SMT scheduler support improves the CPU scheduler's decision making | |
548 | when dealing with POWER5 cpus at a cost of slightly increased | |
549 | overhead in some places. If unsure say N here. | |
550 | ||
551 | config PROC_DEVICETREE | |
5f296755 PM |
552 | bool "Support for device tree in /proc" |
553 | depends on PROC_FS | |
14cf11af PM |
554 | help |
555 | This option adds a device-tree directory under /proc which contains | |
556 | an image of the device tree that the kernel copies from Open | |
5f296755 | 557 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 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 | ||
572 | if !44x || BROKEN | |
573 | source kernel/power/Kconfig | |
574 | endif | |
575 | ||
576 | config SECCOMP | |
577 | bool "Enable seccomp to safely compute untrusted bytecode" | |
578 | depends on PROC_FS | |
579 | default y | |
580 | help | |
581 | This kernel feature is useful for number crunching applications | |
582 | that may need to compute untrusted bytecode during their | |
583 | execution. By using pipes or other transports made available to | |
584 | the process as file descriptors supporting the read/write | |
585 | syscalls, it's possible to isolate those applications in | |
586 | their own address space using seccomp. Once seccomp is | |
587 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
588 | and the task is only allowed to execute a few safe syscalls | |
589 | defined by each seccomp mode. | |
590 | ||
591 | If unsure, say Y. Only embedded should say N here. | |
592 | ||
593 | endmenu | |
594 | ||
595 | config ISA_DMA_API | |
596 | bool | |
597 | default y | |
598 | ||
599 | menu "Bus options" | |
600 | ||
601 | config ISA | |
602 | bool "Support for ISA-bus hardware" | |
603 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 604 | select PPC_I8259 |
14cf11af PM |
605 | help |
606 | Find out whether you have ISA slots on your motherboard. ISA is the | |
607 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
608 | inside your box. If you have an Apple machine, say N here; if you | |
609 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
610 | you have an embedded board, consult your board documentation. | |
611 | ||
5ac6da66 CL |
612 | config ZONE_DMA |
613 | bool | |
614 | default y | |
615 | ||
14cf11af PM |
616 | config GENERIC_ISA_DMA |
617 | bool | |
618 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
619 | default y | |
620 | ||
7233593b ZR |
621 | config MPIC |
622 | bool | |
623 | default n | |
624 | ||
625 | config MPIC_WEIRD | |
626 | bool | |
627 | default n | |
628 | ||
f9bd170a PM |
629 | config PPC_I8259 |
630 | bool | |
f9bd170a PM |
631 | default n |
632 | ||
25635c71 PM |
633 | config PPC_INDIRECT_PCI |
634 | bool | |
635 | depends on PCI | |
63dafe57 | 636 | default y if 40x || 44x |
25635c71 PM |
637 | default n |
638 | ||
14cf11af PM |
639 | config EISA |
640 | bool | |
641 | ||
642 | config SBUS | |
643 | bool | |
644 | ||
08264cbc KG |
645 | config FSL_SOC |
646 | bool | |
647 | ||
14cf11af PM |
648 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
649 | config MCA | |
650 | bool | |
651 | ||
652 | config PCI | |
53158620 | 653 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 SR |
654 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
655 | || MPC7448HPC2 || PPC_PS3 | |
53158620 JL |
656 | default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ |
657 | && !PPC_85xx && !PPC_86xx | |
14cf11af PM |
658 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
659 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
660 | help | |
661 | Find out whether your system includes a PCI bus. PCI is the name of | |
662 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
663 | your box. If you say Y here, the kernel will include drivers and | |
664 | infrastructure code to support PCI bus devices. | |
665 | ||
666 | config PCI_DOMAINS | |
667 | bool | |
668 | default PCI | |
669 | ||
14cf11af PM |
670 | config PCI_QSPAN |
671 | bool "QSpan PCI" | |
672 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 673 | select PPC_I8259 |
14cf11af PM |
674 | help |
675 | Say Y here if you have a system based on a Motorola 8xx-series | |
676 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
677 | ||
678 | config PCI_8260 | |
679 | bool | |
680 | depends on PCI && 8260 | |
25635c71 | 681 | select PPC_INDIRECT_PCI |
14cf11af PM |
682 | default y |
683 | ||
684 | config 8260_PCI9 | |
4a3ecc62 | 685 | bool "Enable workaround for MPC826x erratum PCI 9" |
14cf11af PM |
686 | depends on PCI_8260 && !ADS8272 |
687 | default y | |
688 | ||
689 | choice | |
4a3ecc62 | 690 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
691 | depends on 8260_PCI9 |
692 | ||
693 | config 8260_PCI9_IDMA1 | |
694 | bool "IDMA1" | |
695 | ||
696 | config 8260_PCI9_IDMA2 | |
697 | bool "IDMA2" | |
698 | ||
699 | config 8260_PCI9_IDMA3 | |
700 | bool "IDMA3" | |
701 | ||
702 | config 8260_PCI9_IDMA4 | |
703 | bool "IDMA4" | |
704 | ||
705 | endchoice | |
706 | ||
bb53bb3d JM |
707 | source "drivers/pci/pcie/Kconfig" |
708 | ||
14cf11af PM |
709 | source "drivers/pci/Kconfig" |
710 | ||
711 | source "drivers/pcmcia/Kconfig" | |
712 | ||
713 | source "drivers/pci/hotplug/Kconfig" | |
714 | ||
715 | endmenu | |
716 | ||
717 | menu "Advanced setup" | |
718 | depends on PPC32 | |
719 | ||
720 | config ADVANCED_OPTIONS | |
721 | bool "Prompt for advanced kernel configuration options" | |
722 | help | |
723 | This option will enable prompting for a variety of advanced kernel | |
724 | configuration options. These options can cause the kernel to not | |
725 | work if they are set incorrectly, but can be used to optimize certain | |
726 | aspects of kernel memory management. | |
727 | ||
728 | Unless you know what you are doing, say N here. | |
729 | ||
730 | comment "Default settings for advanced configuration options are used" | |
731 | depends on !ADVANCED_OPTIONS | |
732 | ||
733 | config HIGHMEM_START_BOOL | |
734 | bool "Set high memory pool address" | |
735 | depends on ADVANCED_OPTIONS && HIGHMEM | |
736 | help | |
737 | This option allows you to set the base address of the kernel virtual | |
738 | area used to map high memory pages. This can be useful in | |
739 | optimizing the layout of kernel virtual memory. | |
740 | ||
741 | Say N here unless you know what you are doing. | |
742 | ||
743 | config HIGHMEM_START | |
744 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
745 | default "0xfe000000" | |
746 | ||
747 | config LOWMEM_SIZE_BOOL | |
748 | bool "Set maximum low memory" | |
749 | depends on ADVANCED_OPTIONS | |
750 | help | |
751 | This option allows you to set the maximum amount of memory which | |
752 | will be used as "low memory", that is, memory which the kernel can | |
753 | access directly, without having to set up a kernel virtual mapping. | |
754 | This can be useful in optimizing the layout of kernel virtual | |
755 | memory. | |
756 | ||
757 | Say N here unless you know what you are doing. | |
758 | ||
759 | config LOWMEM_SIZE | |
760 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
761 | default "0x30000000" | |
762 | ||
763 | config KERNEL_START_BOOL | |
764 | bool "Set custom kernel base address" | |
765 | depends on ADVANCED_OPTIONS | |
766 | help | |
767 | This option allows you to set the kernel virtual address at which | |
768 | the kernel will map low memory (the kernel image will be linked at | |
769 | this address). This can be useful in optimizing the virtual memory | |
770 | layout of the system. | |
771 | ||
772 | Say N here unless you know what you are doing. | |
773 | ||
774 | config KERNEL_START | |
775 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
776 | default "0xc0000000" | |
777 | ||
778 | config TASK_SIZE_BOOL | |
779 | bool "Set custom user task size" | |
780 | depends on ADVANCED_OPTIONS | |
781 | help | |
782 | This option allows you to set the amount of virtual address space | |
783 | allocated to user tasks. This can be useful in optimizing the | |
784 | virtual memory layout of the system. | |
785 | ||
786 | Say N here unless you know what you are doing. | |
787 | ||
788 | config TASK_SIZE | |
789 | hex "Size of user task space" if TASK_SIZE_BOOL | |
790 | default "0x80000000" | |
791 | ||
792 | config CONSISTENT_START_BOOL | |
793 | bool "Set custom consistent memory pool address" | |
794 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
795 | help | |
796 | This option allows you to set the base virtual address | |
4b3f686d | 797 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
798 | memory is used to make consistent memory allocations. |
799 | ||
800 | config CONSISTENT_START | |
801 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
802 | default "0xff100000" if NOT_COHERENT_CACHE | |
803 | ||
804 | config CONSISTENT_SIZE_BOOL | |
805 | bool "Set custom consistent memory pool size" | |
806 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
807 | help | |
4b3f686d | 808 | This option allows you to set the size of the |
14cf11af PM |
809 | consistent memory pool. This pool of virtual memory |
810 | is used to make consistent memory allocations. | |
811 | ||
812 | config CONSISTENT_SIZE | |
813 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
814 | default "0x00200000" if NOT_COHERENT_CACHE | |
815 | ||
816 | config BOOT_LOAD_BOOL | |
817 | bool "Set the boot link/load address" | |
818 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
819 | help | |
820 | This option allows you to set the initial load address of the zImage | |
821 | or zImage.initrd file. This can be useful if you are on a board | |
822 | which has a small amount of memory. | |
823 | ||
824 | Say N here unless you know what you are doing. | |
825 | ||
826 | config BOOT_LOAD | |
827 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
828 | default "0x00400000" if 40x || 8xx || 8260 | |
829 | default "0x01000000" if 44x | |
830 | default "0x00800000" | |
831 | ||
832 | config PIN_TLB | |
833 | bool "Pinned Kernel TLBs (860 ONLY)" | |
834 | depends on ADVANCED_OPTIONS && 8xx | |
835 | endmenu | |
836 | ||
cabb5587 SR |
837 | if PPC64 |
838 | config KERNEL_START | |
839 | hex | |
eeb2d218 | 840 | default "0xc000000000000000" |
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 | |
856 | source "lib/Kconfig" | |
857 | ||
cd6b0762 PP |
858 | menu "Instrumentation Support" |
859 | depends on EXPERIMENTAL | |
860 | ||
14cf11af PM |
861 | source "arch/powerpc/oprofile/Kconfig" |
862 | ||
cd6b0762 PP |
863 | config KPROBES |
864 | bool "Kprobes (EXPERIMENTAL)" | |
82090035 | 865 | depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES |
cd6b0762 PP |
866 | help |
867 | Kprobes allows you to trap at almost any kernel address and | |
868 | execute a callback function. register_kprobe() establishes | |
869 | a probepoint and specifies the callback. Kprobes is useful | |
870 | for kernel debugging, non-intrusive instrumentation and testing. | |
871 | If in doubt, say "N". | |
872 | endmenu | |
873 | ||
14cf11af PM |
874 | source "arch/powerpc/Kconfig.debug" |
875 | ||
876 | source "security/Kconfig" | |
877 | ||
878 | config KEYS_COMPAT | |
879 | bool | |
880 | depends on COMPAT && KEYS | |
881 | default y | |
882 | ||
883 | source "crypto/Kconfig" |