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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 | |
270429ba | 165 | select WANT_DEVICE_TREE |
14cf11af | 166 | |
63dafe57 BB |
167 | config PPC_85xx |
168 | bool "Freescale 85xx" | |
169 | select E500 | |
170 | select FSL_SOC | |
171 | select 85xx | |
4536b937 | 172 | select WANT_DEVICE_TREE |
63dafe57 | 173 | |
c9b484b5 JL |
174 | config PPC_86xx |
175 | bool "Freescale 86xx" | |
176 | select 6xx | |
177 | select FSL_SOC | |
3e4e97f4 | 178 | select FSL_PCIE |
c9b484b5 JL |
179 | select PPC_FPU |
180 | select ALTIVEC | |
181 | help | |
182 | The Freescale E600 SoCs have 74xx cores. | |
183 | ||
5902ebce VB |
184 | config PPC_8xx |
185 | bool "Freescale 8xx" | |
186 | select FSL_SOC | |
187 | select 8xx | |
188 | ||
14cf11af PM |
189 | config 40x |
190 | bool "AMCC 40x" | |
4c75a6f4 | 191 | select PPC_DCR_NATIVE |
14cf11af PM |
192 | |
193 | config 44x | |
194 | bool "AMCC 44x" | |
4c75a6f4 | 195 | select PPC_DCR_NATIVE |
14cf11af | 196 | |
14cf11af PM |
197 | config E200 |
198 | bool "Freescale e200" | |
199 | ||
14cf11af PM |
200 | endchoice |
201 | ||
202 | config POWER4_ONLY | |
203 | bool "Optimize for POWER4" | |
187a0067 | 204 | depends on PPC64 |
14cf11af PM |
205 | default n |
206 | ---help--- | |
207 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
208 | The resulting binary will not work on POWER3 or RS64 processors | |
209 | when compiled with binutils 2.15 or later. | |
210 | ||
211 | config POWER3 | |
212 | bool | |
187a0067 | 213 | depends on PPC64 |
14cf11af PM |
214 | default y if !POWER4_ONLY |
215 | ||
216 | config POWER4 | |
187a0067 | 217 | depends on PPC64 |
14cf11af PM |
218 | def_bool y |
219 | ||
08264cbc KG |
220 | config 6xx |
221 | bool | |
222 | ||
5902ebce VB |
223 | # this is temp to handle compat with arch=ppc |
224 | config 8xx | |
225 | bool | |
226 | ||
08264cbc KG |
227 | # this is temp to handle compat with arch=ppc |
228 | config 83xx | |
229 | bool | |
230 | ||
63dafe57 BB |
231 | # this is temp to handle compat with arch=ppc |
232 | config 85xx | |
233 | bool | |
234 | ||
235 | config E500 | |
236 | bool | |
237 | ||
14cf11af | 238 | config PPC_FPU |
187a0067 PM |
239 | bool |
240 | default y if PPC64 | |
14cf11af | 241 | |
4c75a6f4 BH |
242 | config PPC_DCR_NATIVE |
243 | bool | |
244 | default n | |
245 | ||
246 | config PPC_DCR_MMIO | |
247 | bool | |
248 | default n | |
249 | ||
250 | config PPC_DCR | |
251 | bool | |
252 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
253 | default y | |
254 | ||
4c9d2800 BH |
255 | config PPC_OF_PLATFORM_PCI |
256 | bool | |
257 | depends on PPC64 # not supported on 32 bits yet | |
258 | default n | |
259 | ||
14cf11af PM |
260 | config BOOKE |
261 | bool | |
262 | depends on E200 || E500 | |
263 | default y | |
264 | ||
265 | config FSL_BOOKE | |
266 | bool | |
267 | depends on E200 || E500 | |
268 | default y | |
269 | ||
270 | config PTE_64BIT | |
271 | bool | |
272 | depends on 44x || E500 | |
273 | default y if 44x | |
274 | default y if E500 && PHYS_64BIT | |
275 | ||
276 | config PHYS_64BIT | |
277 | bool 'Large physical address support' if E500 | |
278 | depends on 44x || E500 | |
3d1ea8e8 | 279 | select RESOURCES_64BIT |
14cf11af PM |
280 | default y if 44x |
281 | ---help--- | |
282 | This option enables kernel support for larger than 32-bit physical | |
283 | addresses. This features is not be available on all e500 cores. | |
284 | ||
285 | If in doubt, say N here. | |
286 | ||
287 | config ALTIVEC | |
288 | bool "AltiVec Support" | |
08264cbc | 289 | depends on CLASSIC32 || POWER4 |
14cf11af PM |
290 | ---help--- |
291 | This option enables kernel support for the Altivec extensions to the | |
292 | PowerPC processor. The kernel currently supports saving and restoring | |
293 | altivec registers, and turning on the 'altivec enable' bit so user | |
294 | processes can execute altivec instructions. | |
295 | ||
296 | This option is only usefully if you have a processor that supports | |
297 | altivec (G4, otherwise known as 74xx series), but does not have | |
298 | any affect on a non-altivec cpu (it does, however add code to the | |
299 | kernel). | |
300 | ||
301 | If in doubt, say Y here. | |
302 | ||
303 | config SPE | |
304 | bool "SPE Support" | |
305 | depends on E200 || E500 | |
63dafe57 | 306 | default y |
14cf11af PM |
307 | ---help--- |
308 | This option enables kernel support for the Signal Processing | |
309 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
310 | supports saving and restoring SPE registers, and turning on the | |
311 | 'spe enable' bit so user processes can execute SPE instructions. | |
312 | ||
313 | This option is only useful if you have a processor that supports | |
314 | SPE (e500, otherwise known as 85xx series), but does not have any | |
315 | effect on a non-spe cpu (it does, however add code to the kernel). | |
316 | ||
317 | If in doubt, say Y here. | |
318 | ||
319 | config PPC_STD_MMU | |
320 | bool | |
321 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
322 | default y | |
323 | ||
324 | config PPC_STD_MMU_32 | |
325 | def_bool y | |
326 | depends on PPC_STD_MMU && PPC32 | |
327 | ||
c6622f63 PM |
328 | config VIRT_CPU_ACCOUNTING |
329 | bool "Deterministic task and CPU time accounting" | |
330 | depends on PPC64 | |
331 | default y | |
332 | help | |
333 | Select this option to enable more accurate task and CPU time | |
334 | accounting. This is done by reading a CPU counter on each | |
335 | kernel entry and exit and on transitions within the kernel | |
336 | between system, softirq and hardirq state, so there is a | |
337 | small performance impact. This also enables accounting of | |
338 | stolen time on logically-partitioned systems running on | |
339 | IBM POWER5-based machines. | |
340 | ||
341 | If in doubt, say Y here. | |
342 | ||
14cf11af PM |
343 | config SMP |
344 | depends on PPC_STD_MMU | |
345 | bool "Symmetric multi-processing support" | |
346 | ---help--- | |
347 | This enables support for systems with more than one CPU. If you have | |
348 | a system with only one CPU, say N. If you have a system with more | |
349 | than one CPU, say Y. Note that the kernel does not currently | |
350 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
351 | since they have inadequate hardware support for multiprocessor | |
352 | operation. | |
353 | ||
354 | If you say N here, the kernel will run on single and multiprocessor | |
355 | machines, but will use only one CPU of a multiprocessor machine. If | |
356 | you say Y here, the kernel will run on single-processor machines. | |
357 | On a single-processor machine, the kernel will run faster if you say | |
358 | N here. | |
359 | ||
360 | If you don't know what to do here, say N. | |
361 | ||
362 | config NR_CPUS | |
e8a167ac | 363 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
364 | range 2 128 |
365 | depends on SMP | |
366 | default "32" if PPC64 | |
367 | default "4" | |
368 | ||
369 | config NOT_COHERENT_CACHE | |
370 | bool | |
371 | depends on 4xx || 8xx || E200 | |
372 | default y | |
373 | endmenu | |
374 | ||
375 | source "init/Kconfig" | |
376 | ||
4330f5da | 377 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 378 | |
14cf11af PM |
379 | menu "Kernel options" |
380 | ||
381 | config HIGHMEM | |
382 | bool "High memory support" | |
383 | depends on PPC32 | |
384 | ||
385 | source kernel/Kconfig.hz | |
386 | source kernel/Kconfig.preempt | |
387 | source "fs/Kconfig.binfmt" | |
388 | ||
389 | # We optimistically allocate largepages from the VM, so make the limit | |
390 | # large enough (16MB). This badly named config option is actually | |
391 | # max order + 1 | |
392 | config FORCE_MAX_ZONEORDER | |
393 | int | |
394 | depends on PPC64 | |
02864867 | 395 | default "9" if PPC_64K_PAGES |
14cf11af PM |
396 | default "13" |
397 | ||
398 | config MATH_EMULATION | |
399 | bool "Math emulation" | |
4d52719a | 400 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
401 | ---help--- |
402 | Some PowerPC chips designed for embedded applications do not have | |
403 | a floating-point unit and therefore do not implement the | |
404 | floating-point instructions in the PowerPC instruction set. If you | |
405 | say Y here, the kernel will include code to emulate a floating-point | |
406 | unit, which will allow programs that use floating-point | |
407 | instructions to run. | |
408 | ||
409 | config IOMMU_VMERGE | |
410 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
411 | depends on EXPERIMENTAL && PPC64 | |
412 | default n | |
413 | help | |
414 | Cause IO segments sent to a device for DMA to be merged virtually | |
415 | by the IOMMU when they happen to have been allocated contiguously. | |
416 | This doesn't add pressure to the IOMMU allocator. However, some | |
417 | drivers don't support getting large merged segments coming back | |
418 | from *_map_sg(). Say Y if you know the drivers you are using are | |
419 | properly handling this case. | |
420 | ||
421 | config HOTPLUG_CPU | |
422 | bool "Support for enabling/disabling CPUs" | |
423 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
424 | ---help--- | |
425 | Say Y here to be able to disable and re-enable individual | |
426 | CPUs at runtime on SMP machines. | |
427 | ||
428 | Say N if you are unsure. | |
429 | ||
cc57637b YG |
430 | config ARCH_ENABLE_MEMORY_HOTPLUG |
431 | def_bool y | |
432 | ||
14cf11af PM |
433 | config KEXEC |
434 | bool "kexec system call (EXPERIMENTAL)" | |
435 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
436 | help | |
437 | kexec is a system call that implements the ability to shutdown your | |
438 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 439 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
440 | you can start any kernel with it, not just Linux. |
441 | ||
1f1332f7 | 442 | The name comes from the similarity to the exec system call. |
14cf11af PM |
443 | |
444 | It is an ongoing process to be certain the hardware in a machine | |
445 | is properly shutdown, so do not be surprised if this code does not | |
446 | initially work for you. It may help to enable device hotplugging | |
447 | support. As of this writing the exact hardware interface is | |
448 | strongly in flux, so no good recommendation can be made. | |
449 | ||
e8625d46 | 450 | config CRASH_DUMP |
cd9c99d7 | 451 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
452 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
453 | help | |
454 | Build a kernel suitable for use as a kdump capture kernel. | |
455 | The kernel will be linked at a different address than normal, and | |
456 | so can only be used for Kdump. | |
457 | ||
458 | Don't change this unless you know what you are doing. | |
459 | ||
14cf11af PM |
460 | config PPCBUG_NVRAM |
461 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
462 | default y if PPC_PREP | |
463 | ||
464 | config IRQ_ALL_CPUS | |
465 | bool "Distribute interrupts on all CPUs by default" | |
466 | depends on SMP && !MV64360 | |
467 | help | |
468 | This option gives the kernel permission to distribute IRQs across | |
469 | multiple CPUs. Saying N here will route all IRQs to the first | |
470 | CPU. Generally saying Y is safe, although some problems have been | |
471 | reported with SMP Power Macintoshes with this option enabled. | |
472 | ||
ffa27b6b AW |
473 | config NUMA |
474 | bool "NUMA support" | |
475 | depends on PPC64 | |
476 | default y if SMP && PPC_PSERIES | |
477 | ||
c80d79d7 YG |
478 | config NODES_SHIFT |
479 | int | |
480 | default "4" | |
481 | depends on NEED_MULTIPLE_NODES | |
482 | ||
14cf11af PM |
483 | config ARCH_SELECT_MEMORY_MODEL |
484 | def_bool y | |
485 | depends on PPC64 | |
486 | ||
487 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
488 | def_bool y |
489 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 490 | |
45fb6cea | 491 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 492 | def_bool y |
9100b205 | 493 | depends on PPC64 |
14cf11af | 494 | |
45fb6cea | 495 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 496 | def_bool y |
78bde53e | 497 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 498 | |
c67c3cb4 | 499 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 500 | def_bool y |
c67c3cb4 MG |
501 | |
502 | source "mm/Kconfig" | |
14cf11af | 503 | |
7e9191da MK |
504 | config ARCH_MEMORY_PROBE |
505 | def_bool y | |
506 | depends on MEMORY_HOTPLUG | |
507 | ||
75167957 AW |
508 | # Some NUMA nodes have memory ranges that span |
509 | # other nodes. Even though a pfn is valid and | |
510 | # between a node's start and end pfns, it may not | |
511 | # reside on that node. See memmap_init_zone() | |
512 | # for details. | |
513 | config NODES_SPAN_OTHER_NODES | |
514 | def_bool y | |
515 | depends on NEED_MULTIPLE_NODES | |
516 | ||
3c726f8d BH |
517 | config PPC_64K_PAGES |
518 | bool "64k page size" | |
863c84b9 | 519 | depends on PPC64 |
3c726f8d BH |
520 | help |
521 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
522 | without processor support for 64k pages, the kernel will simulate |
523 | them by loading each individual 4k page on demand transparently, | |
524 | while on hardware with such support, it will be used to map | |
525 | normal application pages. | |
3c726f8d | 526 | |
14cf11af PM |
527 | config SCHED_SMT |
528 | bool "SMT (Hyperthreading) scheduler support" | |
529 | depends on PPC64 && SMP | |
14cf11af PM |
530 | help |
531 | SMT scheduler support improves the CPU scheduler's decision making | |
532 | when dealing with POWER5 cpus at a cost of slightly increased | |
533 | overhead in some places. If unsure say N here. | |
534 | ||
535 | config PROC_DEVICETREE | |
5f296755 PM |
536 | bool "Support for device tree in /proc" |
537 | depends on PROC_FS | |
14cf11af PM |
538 | help |
539 | This option adds a device-tree directory under /proc which contains | |
540 | an image of the device tree that the kernel copies from Open | |
5f296755 | 541 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 542 | |
14cf11af PM |
543 | config CMDLINE_BOOL |
544 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
545 | |
546 | config CMDLINE | |
547 | string "Initial kernel command string" | |
548 | depends on CMDLINE_BOOL | |
549 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
550 | help | |
551 | On some platforms, there is currently no way for the boot loader to | |
552 | pass arguments to the kernel. For these platforms, you can supply | |
553 | some command-line options at build time by entering them here. In | |
554 | most cases you will need to specify the root device here. | |
555 | ||
556 | if !44x || BROKEN | |
557 | source kernel/power/Kconfig | |
558 | endif | |
559 | ||
560 | config SECCOMP | |
561 | bool "Enable seccomp to safely compute untrusted bytecode" | |
562 | depends on PROC_FS | |
563 | default y | |
564 | help | |
565 | This kernel feature is useful for number crunching applications | |
566 | that may need to compute untrusted bytecode during their | |
567 | execution. By using pipes or other transports made available to | |
568 | the process as file descriptors supporting the read/write | |
569 | syscalls, it's possible to isolate those applications in | |
570 | their own address space using seccomp. Once seccomp is | |
571 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
572 | and the task is only allowed to execute a few safe syscalls | |
573 | defined by each seccomp mode. | |
574 | ||
575 | If unsure, say Y. Only embedded should say N here. | |
576 | ||
270429ba SW |
577 | config WANT_DEVICE_TREE |
578 | bool | |
579 | default n | |
580 | ||
581 | config DEVICE_TREE | |
582 | string "Static device tree source file" | |
583 | depends on WANT_DEVICE_TREE | |
584 | help | |
585 | This specifies the device tree source (.dts) file to be | |
586 | compiled and included when building the bootwrapper. If a | |
587 | relative filename is given, then it will be relative to | |
588 | arch/powerpc/boot/dts. If you are not using the bootwrapper, | |
589 | or do not need to build a dts into the bootwrapper, this | |
590 | field is ignored. | |
591 | ||
592 | For example, this is required when building a cuImage target | |
593 | for an older U-Boot, which cannot pass a device tree itself. | |
594 | Such a kernel will not work with a newer U-Boot that tries to | |
595 | pass a device tree (unless you tell it not to). If your U-Boot | |
596 | does not mention a device tree in "help bootm", then use the | |
597 | cuImage target and specify a device tree here. Otherwise, use | |
598 | the uImage target and leave this field blank. | |
599 | ||
14cf11af PM |
600 | endmenu |
601 | ||
602 | config ISA_DMA_API | |
603 | bool | |
604 | default y | |
605 | ||
606 | menu "Bus options" | |
607 | ||
608 | config ISA | |
609 | bool "Support for ISA-bus hardware" | |
610 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 611 | select PPC_I8259 |
14cf11af PM |
612 | help |
613 | Find out whether you have ISA slots on your motherboard. ISA is the | |
614 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
615 | inside your box. If you have an Apple machine, say N here; if you | |
616 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
617 | you have an embedded board, consult your board documentation. | |
618 | ||
5ac6da66 CL |
619 | config ZONE_DMA |
620 | bool | |
621 | default y | |
622 | ||
14cf11af PM |
623 | config GENERIC_ISA_DMA |
624 | bool | |
625 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
626 | default y | |
627 | ||
25635c71 PM |
628 | config PPC_INDIRECT_PCI |
629 | bool | |
630 | depends on PCI | |
63dafe57 | 631 | default y if 40x || 44x |
25635c71 PM |
632 | default n |
633 | ||
4a89f7fa KG |
634 | config PPC_INDIRECT_PCI_BE |
635 | bool | |
636 | depends PPC_INDIRECT_PCI | |
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 | ||
3e4e97f4 JL |
648 | config FSL_PCIE |
649 | bool | |
650 | depends on PPC_86xx | |
651 | ||
14cf11af PM |
652 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
653 | config MCA | |
654 | bool | |
655 | ||
656 | config PCI | |
53158620 | 657 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 SR |
658 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
659 | || MPC7448HPC2 || PPC_PS3 | |
53158620 JL |
660 | default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ |
661 | && !PPC_85xx && !PPC_86xx | |
14cf11af PM |
662 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
663 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
664 | help | |
665 | Find out whether your system includes a PCI bus. PCI is the name of | |
666 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
667 | your box. If you say Y here, the kernel will include drivers and | |
668 | infrastructure code to support PCI bus devices. | |
669 | ||
670 | config PCI_DOMAINS | |
671 | bool | |
672 | default PCI | |
673 | ||
14cf11af PM |
674 | config PCI_QSPAN |
675 | bool "QSpan PCI" | |
676 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 677 | select PPC_I8259 |
14cf11af PM |
678 | help |
679 | Say Y here if you have a system based on a Motorola 8xx-series | |
680 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
681 | ||
682 | config PCI_8260 | |
683 | bool | |
684 | depends on PCI && 8260 | |
25635c71 | 685 | select PPC_INDIRECT_PCI |
14cf11af PM |
686 | default y |
687 | ||
688 | config 8260_PCI9 | |
4a3ecc62 | 689 | bool "Enable workaround for MPC826x erratum PCI 9" |
14cf11af PM |
690 | depends on PCI_8260 && !ADS8272 |
691 | default y | |
692 | ||
693 | choice | |
4a3ecc62 | 694 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
695 | depends on 8260_PCI9 |
696 | ||
697 | config 8260_PCI9_IDMA1 | |
698 | bool "IDMA1" | |
699 | ||
700 | config 8260_PCI9_IDMA2 | |
701 | bool "IDMA2" | |
702 | ||
703 | config 8260_PCI9_IDMA3 | |
704 | bool "IDMA3" | |
705 | ||
706 | config 8260_PCI9_IDMA4 | |
707 | bool "IDMA4" | |
708 | ||
709 | endchoice | |
710 | ||
bb53bb3d JM |
711 | source "drivers/pci/pcie/Kconfig" |
712 | ||
14cf11af PM |
713 | source "drivers/pci/Kconfig" |
714 | ||
715 | source "drivers/pcmcia/Kconfig" | |
716 | ||
717 | source "drivers/pci/hotplug/Kconfig" | |
718 | ||
719 | endmenu | |
720 | ||
721 | menu "Advanced setup" | |
722 | depends on PPC32 | |
723 | ||
724 | config ADVANCED_OPTIONS | |
725 | bool "Prompt for advanced kernel configuration options" | |
726 | help | |
727 | This option will enable prompting for a variety of advanced kernel | |
728 | configuration options. These options can cause the kernel to not | |
729 | work if they are set incorrectly, but can be used to optimize certain | |
730 | aspects of kernel memory management. | |
731 | ||
732 | Unless you know what you are doing, say N here. | |
733 | ||
734 | comment "Default settings for advanced configuration options are used" | |
735 | depends on !ADVANCED_OPTIONS | |
736 | ||
737 | config HIGHMEM_START_BOOL | |
738 | bool "Set high memory pool address" | |
739 | depends on ADVANCED_OPTIONS && HIGHMEM | |
740 | help | |
741 | This option allows you to set the base address of the kernel virtual | |
742 | area used to map high memory pages. This can be useful in | |
743 | optimizing the layout of kernel virtual memory. | |
744 | ||
745 | Say N here unless you know what you are doing. | |
746 | ||
747 | config HIGHMEM_START | |
748 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
749 | default "0xfe000000" | |
750 | ||
751 | config LOWMEM_SIZE_BOOL | |
752 | bool "Set maximum low memory" | |
753 | depends on ADVANCED_OPTIONS | |
754 | help | |
755 | This option allows you to set the maximum amount of memory which | |
756 | will be used as "low memory", that is, memory which the kernel can | |
757 | access directly, without having to set up a kernel virtual mapping. | |
758 | This can be useful in optimizing the layout of kernel virtual | |
759 | memory. | |
760 | ||
761 | Say N here unless you know what you are doing. | |
762 | ||
763 | config LOWMEM_SIZE | |
764 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
765 | default "0x30000000" | |
766 | ||
767 | config KERNEL_START_BOOL | |
768 | bool "Set custom kernel base address" | |
769 | depends on ADVANCED_OPTIONS | |
770 | help | |
771 | This option allows you to set the kernel virtual address at which | |
772 | the kernel will map low memory (the kernel image will be linked at | |
773 | this address). This can be useful in optimizing the virtual memory | |
774 | layout of the system. | |
775 | ||
776 | Say N here unless you know what you are doing. | |
777 | ||
778 | config KERNEL_START | |
779 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
780 | default "0xc0000000" | |
781 | ||
782 | config TASK_SIZE_BOOL | |
783 | bool "Set custom user task size" | |
784 | depends on ADVANCED_OPTIONS | |
785 | help | |
786 | This option allows you to set the amount of virtual address space | |
787 | allocated to user tasks. This can be useful in optimizing the | |
788 | virtual memory layout of the system. | |
789 | ||
790 | Say N here unless you know what you are doing. | |
791 | ||
792 | config TASK_SIZE | |
793 | hex "Size of user task space" if TASK_SIZE_BOOL | |
794 | default "0x80000000" | |
795 | ||
796 | config CONSISTENT_START_BOOL | |
797 | bool "Set custom consistent memory pool address" | |
798 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
799 | help | |
800 | This option allows you to set the base virtual address | |
4b3f686d | 801 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
802 | memory is used to make consistent memory allocations. |
803 | ||
804 | config CONSISTENT_START | |
805 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
806 | default "0xff100000" if NOT_COHERENT_CACHE | |
807 | ||
808 | config CONSISTENT_SIZE_BOOL | |
809 | bool "Set custom consistent memory pool size" | |
810 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
811 | help | |
4b3f686d | 812 | This option allows you to set the size of the |
14cf11af PM |
813 | consistent memory pool. This pool of virtual memory |
814 | is used to make consistent memory allocations. | |
815 | ||
816 | config CONSISTENT_SIZE | |
817 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
818 | default "0x00200000" if NOT_COHERENT_CACHE | |
819 | ||
820 | config BOOT_LOAD_BOOL | |
821 | bool "Set the boot link/load address" | |
822 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
823 | help | |
824 | This option allows you to set the initial load address of the zImage | |
825 | or zImage.initrd file. This can be useful if you are on a board | |
826 | which has a small amount of memory. | |
827 | ||
828 | Say N here unless you know what you are doing. | |
829 | ||
830 | config BOOT_LOAD | |
831 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
832 | default "0x00400000" if 40x || 8xx || 8260 | |
833 | default "0x01000000" if 44x | |
834 | default "0x00800000" | |
835 | ||
836 | config PIN_TLB | |
837 | bool "Pinned Kernel TLBs (860 ONLY)" | |
838 | depends on ADVANCED_OPTIONS && 8xx | |
839 | endmenu | |
840 | ||
cabb5587 SR |
841 | if PPC64 |
842 | config KERNEL_START | |
843 | hex | |
eeb2d218 | 844 | default "0xc000000000000000" |
cabb5587 SR |
845 | endif |
846 | ||
14cf11af PM |
847 | source "net/Kconfig" |
848 | ||
849 | source "drivers/Kconfig" | |
850 | ||
851 | source "fs/Kconfig" | |
852 | ||
853 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
854 | ||
855 | # XXX source "arch/ppc/8260_io/Kconfig" | |
856 | ||
98658538 LY |
857 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
858 | ||
14cf11af PM |
859 | source "lib/Kconfig" |
860 | ||
cd6b0762 | 861 | menu "Instrumentation Support" |
98750261 | 862 | depends on EXPERIMENTAL |
cd6b0762 | 863 | |
14cf11af PM |
864 | source "arch/powerpc/oprofile/Kconfig" |
865 | ||
cd6b0762 PP |
866 | config KPROBES |
867 | bool "Kprobes (EXPERIMENTAL)" | |
82090035 | 868 | depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES |
cd6b0762 PP |
869 | help |
870 | Kprobes allows you to trap at almost any kernel address and | |
871 | execute a callback function. register_kprobe() establishes | |
872 | a probepoint and specifies the callback. Kprobes is useful | |
873 | for kernel debugging, non-intrusive instrumentation and testing. | |
874 | If in doubt, say "N". | |
875 | endmenu | |
876 | ||
14cf11af PM |
877 | source "arch/powerpc/Kconfig.debug" |
878 | ||
879 | source "security/Kconfig" | |
880 | ||
881 | config KEYS_COMPAT | |
882 | bool | |
883 | depends on COMPAT && KEYS | |
884 | default y | |
885 | ||
886 | source "crypto/Kconfig" |