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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 | ||
b3028878 JB |
120 | config SYS_SUPPORTS_APM_EMULATION |
121 | bool | |
122 | ||
f4fc4a5b KG |
123 | config DEFAULT_UIMAGE |
124 | bool | |
125 | help | |
126 | Used to allow a board to specify it wants a uImage built by default | |
127 | default n | |
128 | ||
543b9fd3 JB |
129 | config PPC64_SWSUSP |
130 | bool | |
131 | depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) | |
132 | default y | |
133 | ||
14cf11af PM |
134 | menu "Processor support" |
135 | choice | |
136 | prompt "Processor Type" | |
137 | depends on PPC32 | |
138 | default 6xx | |
139 | ||
08264cbc | 140 | config CLASSIC32 |
650f3289 | 141 | bool "52xx/6xx/7xx/74xx" |
14cf11af | 142 | select PPC_FPU |
08264cbc | 143 | select 6xx |
14cf11af PM |
144 | help |
145 | There are four families of PowerPC chips supported. The more common | |
146 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | |
147 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | |
148 | embedded versions (403 and 405) and the high end 64 bit Power | |
149 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | |
650f3289 GL |
150 | |
151 | This option is the catch-all for 6xx types, including some of the | |
152 | embedded versions. Unless there is see an option for the specific | |
153 | chip family you are using, you want this option. | |
154 | ||
155 | You do not want this if you are building a kernel for a 64 bit | |
156 | IBM RS/6000 or an Apple G5, choose 6xx. | |
157 | ||
158 | If unsure, select this option | |
14cf11af | 159 | |
14cf11af PM |
160 | Note that the kernel runs in 32-bit mode even on 64-bit chips. |
161 | ||
14cf11af PM |
162 | config PPC_82xx |
163 | bool "Freescale 82xx" | |
08264cbc KG |
164 | select 6xx |
165 | select PPC_FPU | |
14cf11af PM |
166 | |
167 | config PPC_83xx | |
168 | bool "Freescale 83xx" | |
08264cbc KG |
169 | select 6xx |
170 | select FSL_SOC | |
171 | select 83xx | |
172 | select PPC_FPU | |
270429ba | 173 | select WANT_DEVICE_TREE |
14cf11af | 174 | |
63dafe57 BB |
175 | config PPC_85xx |
176 | bool "Freescale 85xx" | |
177 | select E500 | |
178 | select FSL_SOC | |
179 | select 85xx | |
4536b937 | 180 | select WANT_DEVICE_TREE |
63dafe57 | 181 | |
c9b484b5 JL |
182 | config PPC_86xx |
183 | bool "Freescale 86xx" | |
184 | select 6xx | |
185 | select FSL_SOC | |
3e4e97f4 | 186 | select FSL_PCIE |
c9b484b5 JL |
187 | select PPC_FPU |
188 | select ALTIVEC | |
189 | help | |
190 | The Freescale E600 SoCs have 74xx cores. | |
191 | ||
5902ebce VB |
192 | config PPC_8xx |
193 | bool "Freescale 8xx" | |
194 | select FSL_SOC | |
195 | select 8xx | |
196 | ||
14cf11af PM |
197 | config 40x |
198 | bool "AMCC 40x" | |
4c75a6f4 | 199 | select PPC_DCR_NATIVE |
14cf11af PM |
200 | |
201 | config 44x | |
202 | bool "AMCC 44x" | |
4c75a6f4 | 203 | select PPC_DCR_NATIVE |
f6dfc805 | 204 | select WANT_DEVICE_TREE |
14cf11af | 205 | |
14cf11af PM |
206 | config E200 |
207 | bool "Freescale e200" | |
208 | ||
14cf11af PM |
209 | endchoice |
210 | ||
211 | config POWER4_ONLY | |
212 | bool "Optimize for POWER4" | |
187a0067 | 213 | depends on PPC64 |
14cf11af PM |
214 | default n |
215 | ---help--- | |
216 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
217 | The resulting binary will not work on POWER3 or RS64 processors | |
218 | when compiled with binutils 2.15 or later. | |
219 | ||
220 | config POWER3 | |
221 | bool | |
187a0067 | 222 | depends on PPC64 |
14cf11af PM |
223 | default y if !POWER4_ONLY |
224 | ||
225 | config POWER4 | |
187a0067 | 226 | depends on PPC64 |
14cf11af PM |
227 | def_bool y |
228 | ||
08264cbc KG |
229 | config 6xx |
230 | bool | |
231 | ||
5902ebce VB |
232 | # this is temp to handle compat with arch=ppc |
233 | config 8xx | |
234 | bool | |
235 | ||
08264cbc KG |
236 | # this is temp to handle compat with arch=ppc |
237 | config 83xx | |
238 | bool | |
239 | ||
63dafe57 BB |
240 | # this is temp to handle compat with arch=ppc |
241 | config 85xx | |
242 | bool | |
243 | ||
244 | config E500 | |
245 | bool | |
246 | ||
14cf11af | 247 | config PPC_FPU |
187a0067 PM |
248 | bool |
249 | default y if PPC64 | |
14cf11af | 250 | |
4c75a6f4 BH |
251 | config PPC_DCR_NATIVE |
252 | bool | |
253 | default n | |
254 | ||
255 | config PPC_DCR_MMIO | |
256 | bool | |
257 | default n | |
258 | ||
259 | config PPC_DCR | |
260 | bool | |
261 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
262 | default y | |
263 | ||
4c9d2800 BH |
264 | config PPC_OF_PLATFORM_PCI |
265 | bool | |
266 | depends on PPC64 # not supported on 32 bits yet | |
267 | default n | |
268 | ||
f6dfc805 DG |
269 | config 4xx |
270 | bool | |
271 | depends on 40x || 44x | |
272 | default y | |
273 | ||
14cf11af PM |
274 | config BOOKE |
275 | bool | |
f6dfc805 | 276 | depends on E200 || E500 || 44x |
14cf11af PM |
277 | default y |
278 | ||
279 | config FSL_BOOKE | |
280 | bool | |
281 | depends on E200 || E500 | |
282 | default y | |
283 | ||
284 | config PTE_64BIT | |
285 | bool | |
286 | depends on 44x || E500 | |
287 | default y if 44x | |
288 | default y if E500 && PHYS_64BIT | |
289 | ||
290 | config PHYS_64BIT | |
291 | bool 'Large physical address support' if E500 | |
292 | depends on 44x || E500 | |
3d1ea8e8 | 293 | select RESOURCES_64BIT |
14cf11af PM |
294 | default y if 44x |
295 | ---help--- | |
296 | This option enables kernel support for larger than 32-bit physical | |
297 | addresses. This features is not be available on all e500 cores. | |
298 | ||
299 | If in doubt, say N here. | |
300 | ||
301 | config ALTIVEC | |
302 | bool "AltiVec Support" | |
08264cbc | 303 | depends on CLASSIC32 || POWER4 |
14cf11af PM |
304 | ---help--- |
305 | This option enables kernel support for the Altivec extensions to the | |
306 | PowerPC processor. The kernel currently supports saving and restoring | |
307 | altivec registers, and turning on the 'altivec enable' bit so user | |
308 | processes can execute altivec instructions. | |
309 | ||
310 | This option is only usefully if you have a processor that supports | |
311 | altivec (G4, otherwise known as 74xx series), but does not have | |
312 | any affect on a non-altivec cpu (it does, however add code to the | |
313 | kernel). | |
314 | ||
315 | If in doubt, say Y here. | |
316 | ||
317 | config SPE | |
318 | bool "SPE Support" | |
319 | depends on E200 || E500 | |
63dafe57 | 320 | default y |
14cf11af PM |
321 | ---help--- |
322 | This option enables kernel support for the Signal Processing | |
323 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
324 | supports saving and restoring SPE registers, and turning on the | |
325 | 'spe enable' bit so user processes can execute SPE instructions. | |
326 | ||
327 | This option is only useful if you have a processor that supports | |
328 | SPE (e500, otherwise known as 85xx series), but does not have any | |
329 | effect on a non-spe cpu (it does, however add code to the kernel). | |
330 | ||
331 | If in doubt, say Y here. | |
332 | ||
333 | config PPC_STD_MMU | |
334 | bool | |
335 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
336 | default y | |
337 | ||
338 | config PPC_STD_MMU_32 | |
339 | def_bool y | |
340 | depends on PPC_STD_MMU && PPC32 | |
341 | ||
d0f13e3c BH |
342 | config PPC_MM_SLICES |
343 | bool | |
344 | default y if HUGETLB_PAGE | |
345 | default n | |
346 | ||
c6622f63 PM |
347 | config VIRT_CPU_ACCOUNTING |
348 | bool "Deterministic task and CPU time accounting" | |
349 | depends on PPC64 | |
350 | default y | |
351 | help | |
352 | Select this option to enable more accurate task and CPU time | |
353 | accounting. This is done by reading a CPU counter on each | |
354 | kernel entry and exit and on transitions within the kernel | |
355 | between system, softirq and hardirq state, so there is a | |
356 | small performance impact. This also enables accounting of | |
357 | stolen time on logically-partitioned systems running on | |
358 | IBM POWER5-based machines. | |
359 | ||
360 | If in doubt, say Y here. | |
361 | ||
14cf11af PM |
362 | config SMP |
363 | depends on PPC_STD_MMU | |
364 | bool "Symmetric multi-processing support" | |
365 | ---help--- | |
366 | This enables support for systems with more than one CPU. If you have | |
367 | a system with only one CPU, say N. If you have a system with more | |
368 | than one CPU, say Y. Note that the kernel does not currently | |
369 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
370 | since they have inadequate hardware support for multiprocessor | |
371 | operation. | |
372 | ||
373 | If you say N here, the kernel will run on single and multiprocessor | |
374 | machines, but will use only one CPU of a multiprocessor machine. If | |
375 | you say Y here, the kernel will run on single-processor machines. | |
376 | On a single-processor machine, the kernel will run faster if you say | |
377 | N here. | |
378 | ||
379 | If you don't know what to do here, say N. | |
380 | ||
381 | config NR_CPUS | |
e8a167ac | 382 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
383 | range 2 128 |
384 | depends on SMP | |
385 | default "32" if PPC64 | |
386 | default "4" | |
387 | ||
388 | config NOT_COHERENT_CACHE | |
389 | bool | |
390 | depends on 4xx || 8xx || E200 | |
391 | default y | |
06cce43c DF |
392 | |
393 | config CONFIG_CHECK_CACHE_COHERENCY | |
394 | bool | |
14cf11af PM |
395 | endmenu |
396 | ||
397 | source "init/Kconfig" | |
398 | ||
4330f5da | 399 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 400 | |
14cf11af PM |
401 | menu "Kernel options" |
402 | ||
403 | config HIGHMEM | |
404 | bool "High memory support" | |
405 | depends on PPC32 | |
406 | ||
407 | source kernel/Kconfig.hz | |
408 | source kernel/Kconfig.preempt | |
409 | source "fs/Kconfig.binfmt" | |
410 | ||
411 | # We optimistically allocate largepages from the VM, so make the limit | |
412 | # large enough (16MB). This badly named config option is actually | |
413 | # max order + 1 | |
414 | config FORCE_MAX_ZONEORDER | |
415 | int | |
416 | depends on PPC64 | |
02864867 | 417 | default "9" if PPC_64K_PAGES |
14cf11af PM |
418 | default "13" |
419 | ||
420 | config MATH_EMULATION | |
421 | bool "Math emulation" | |
4d52719a | 422 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
423 | ---help--- |
424 | Some PowerPC chips designed for embedded applications do not have | |
425 | a floating-point unit and therefore do not implement the | |
426 | floating-point instructions in the PowerPC instruction set. If you | |
427 | say Y here, the kernel will include code to emulate a floating-point | |
428 | unit, which will allow programs that use floating-point | |
429 | instructions to run. | |
430 | ||
431 | config IOMMU_VMERGE | |
432 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
433 | depends on EXPERIMENTAL && PPC64 | |
434 | default n | |
435 | help | |
436 | Cause IO segments sent to a device for DMA to be merged virtually | |
437 | by the IOMMU when they happen to have been allocated contiguously. | |
438 | This doesn't add pressure to the IOMMU allocator. However, some | |
439 | drivers don't support getting large merged segments coming back | |
440 | from *_map_sg(). Say Y if you know the drivers you are using are | |
441 | properly handling this case. | |
442 | ||
443 | config HOTPLUG_CPU | |
444 | bool "Support for enabling/disabling CPUs" | |
445 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
446 | ---help--- | |
447 | Say Y here to be able to disable and re-enable individual | |
448 | CPUs at runtime on SMP machines. | |
449 | ||
450 | Say N if you are unsure. | |
451 | ||
cc57637b YG |
452 | config ARCH_ENABLE_MEMORY_HOTPLUG |
453 | def_bool y | |
454 | ||
14cf11af PM |
455 | config KEXEC |
456 | bool "kexec system call (EXPERIMENTAL)" | |
457 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
458 | help | |
459 | kexec is a system call that implements the ability to shutdown your | |
460 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 461 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
462 | you can start any kernel with it, not just Linux. |
463 | ||
1f1332f7 | 464 | The name comes from the similarity to the exec system call. |
14cf11af PM |
465 | |
466 | It is an ongoing process to be certain the hardware in a machine | |
467 | is properly shutdown, so do not be surprised if this code does not | |
468 | initially work for you. It may help to enable device hotplugging | |
469 | support. As of this writing the exact hardware interface is | |
470 | strongly in flux, so no good recommendation can be made. | |
471 | ||
e8625d46 | 472 | config CRASH_DUMP |
cd9c99d7 | 473 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
474 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
475 | help | |
476 | Build a kernel suitable for use as a kdump capture kernel. | |
477 | The kernel will be linked at a different address than normal, and | |
478 | so can only be used for Kdump. | |
479 | ||
480 | Don't change this unless you know what you are doing. | |
481 | ||
14cf11af PM |
482 | config PPCBUG_NVRAM |
483 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
484 | default y if PPC_PREP | |
485 | ||
486 | config IRQ_ALL_CPUS | |
487 | bool "Distribute interrupts on all CPUs by default" | |
488 | depends on SMP && !MV64360 | |
489 | help | |
490 | This option gives the kernel permission to distribute IRQs across | |
491 | multiple CPUs. Saying N here will route all IRQs to the first | |
492 | CPU. Generally saying Y is safe, although some problems have been | |
493 | reported with SMP Power Macintoshes with this option enabled. | |
494 | ||
ffa27b6b AW |
495 | config NUMA |
496 | bool "NUMA support" | |
497 | depends on PPC64 | |
498 | default y if SMP && PPC_PSERIES | |
499 | ||
c80d79d7 YG |
500 | config NODES_SHIFT |
501 | int | |
502 | default "4" | |
503 | depends on NEED_MULTIPLE_NODES | |
504 | ||
14cf11af PM |
505 | config ARCH_SELECT_MEMORY_MODEL |
506 | def_bool y | |
507 | depends on PPC64 | |
508 | ||
509 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
510 | def_bool y |
511 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 512 | |
45fb6cea | 513 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 514 | def_bool y |
9100b205 | 515 | depends on PPC64 |
14cf11af | 516 | |
45fb6cea | 517 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 518 | def_bool y |
78bde53e | 519 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 520 | |
c67c3cb4 | 521 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 522 | def_bool y |
c67c3cb4 MG |
523 | |
524 | source "mm/Kconfig" | |
14cf11af | 525 | |
7e9191da MK |
526 | config ARCH_MEMORY_PROBE |
527 | def_bool y | |
528 | depends on MEMORY_HOTPLUG | |
529 | ||
75167957 AW |
530 | # Some NUMA nodes have memory ranges that span |
531 | # other nodes. Even though a pfn is valid and | |
532 | # between a node's start and end pfns, it may not | |
533 | # reside on that node. See memmap_init_zone() | |
534 | # for details. | |
535 | config NODES_SPAN_OTHER_NODES | |
536 | def_bool y | |
537 | depends on NEED_MULTIPLE_NODES | |
538 | ||
16c2d476 BH |
539 | config PPC_HAS_HASH_64K |
540 | bool | |
541 | depends on PPC64 | |
542 | default n | |
543 | ||
3c726f8d BH |
544 | config PPC_64K_PAGES |
545 | bool "64k page size" | |
863c84b9 | 546 | depends on PPC64 |
16c2d476 | 547 | select PPC_HAS_HASH_64K |
3c726f8d BH |
548 | help |
549 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
550 | without processor support for 64k pages, the kernel will simulate |
551 | them by loading each individual 4k page on demand transparently, | |
552 | while on hardware with such support, it will be used to map | |
553 | normal application pages. | |
3c726f8d | 554 | |
14cf11af PM |
555 | config SCHED_SMT |
556 | bool "SMT (Hyperthreading) scheduler support" | |
557 | depends on PPC64 && SMP | |
14cf11af PM |
558 | help |
559 | SMT scheduler support improves the CPU scheduler's decision making | |
560 | when dealing with POWER5 cpus at a cost of slightly increased | |
561 | overhead in some places. If unsure say N here. | |
562 | ||
563 | config PROC_DEVICETREE | |
5f296755 PM |
564 | bool "Support for device tree in /proc" |
565 | depends on PROC_FS | |
14cf11af PM |
566 | help |
567 | This option adds a device-tree directory under /proc which contains | |
568 | an image of the device tree that the kernel copies from Open | |
5f296755 | 569 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 570 | |
14cf11af PM |
571 | config CMDLINE_BOOL |
572 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
573 | |
574 | config CMDLINE | |
575 | string "Initial kernel command string" | |
576 | depends on CMDLINE_BOOL | |
577 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
578 | help | |
579 | On some platforms, there is currently no way for the boot loader to | |
580 | pass arguments to the kernel. For these platforms, you can supply | |
581 | some command-line options at build time by entering them here. In | |
582 | most cases you will need to specify the root device here. | |
583 | ||
584 | if !44x || BROKEN | |
585 | source kernel/power/Kconfig | |
586 | endif | |
587 | ||
588 | config SECCOMP | |
589 | bool "Enable seccomp to safely compute untrusted bytecode" | |
590 | depends on PROC_FS | |
591 | default y | |
592 | help | |
593 | This kernel feature is useful for number crunching applications | |
594 | that may need to compute untrusted bytecode during their | |
595 | execution. By using pipes or other transports made available to | |
596 | the process as file descriptors supporting the read/write | |
597 | syscalls, it's possible to isolate those applications in | |
598 | their own address space using seccomp. Once seccomp is | |
599 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
600 | and the task is only allowed to execute a few safe syscalls | |
601 | defined by each seccomp mode. | |
602 | ||
603 | If unsure, say Y. Only embedded should say N here. | |
604 | ||
270429ba SW |
605 | config WANT_DEVICE_TREE |
606 | bool | |
607 | default n | |
608 | ||
609 | config DEVICE_TREE | |
610 | string "Static device tree source file" | |
611 | depends on WANT_DEVICE_TREE | |
612 | help | |
613 | This specifies the device tree source (.dts) file to be | |
614 | compiled and included when building the bootwrapper. If a | |
615 | relative filename is given, then it will be relative to | |
616 | arch/powerpc/boot/dts. If you are not using the bootwrapper, | |
617 | or do not need to build a dts into the bootwrapper, this | |
618 | field is ignored. | |
619 | ||
620 | For example, this is required when building a cuImage target | |
621 | for an older U-Boot, which cannot pass a device tree itself. | |
622 | Such a kernel will not work with a newer U-Boot that tries to | |
623 | pass a device tree (unless you tell it not to). If your U-Boot | |
624 | does not mention a device tree in "help bootm", then use the | |
625 | cuImage target and specify a device tree here. Otherwise, use | |
626 | the uImage target and leave this field blank. | |
627 | ||
14cf11af PM |
628 | endmenu |
629 | ||
630 | config ISA_DMA_API | |
631 | bool | |
632 | default y | |
633 | ||
634 | menu "Bus options" | |
635 | ||
636 | config ISA | |
637 | bool "Support for ISA-bus hardware" | |
638 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 639 | select PPC_I8259 |
14cf11af PM |
640 | help |
641 | Find out whether you have ISA slots on your motherboard. ISA is the | |
642 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
643 | inside your box. If you have an Apple machine, say N here; if you | |
644 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
645 | you have an embedded board, consult your board documentation. | |
646 | ||
5ac6da66 CL |
647 | config ZONE_DMA |
648 | bool | |
649 | default y | |
650 | ||
14cf11af PM |
651 | config GENERIC_ISA_DMA |
652 | bool | |
653 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
654 | default y | |
655 | ||
25635c71 PM |
656 | config PPC_INDIRECT_PCI |
657 | bool | |
658 | depends on PCI | |
63dafe57 | 659 | default y if 40x || 44x |
25635c71 PM |
660 | default n |
661 | ||
4a89f7fa KG |
662 | config PPC_INDIRECT_PCI_BE |
663 | bool | |
664 | depends PPC_INDIRECT_PCI | |
665 | default n | |
666 | ||
14cf11af PM |
667 | config EISA |
668 | bool | |
669 | ||
670 | config SBUS | |
671 | bool | |
672 | ||
08264cbc KG |
673 | config FSL_SOC |
674 | bool | |
675 | ||
3e4e97f4 JL |
676 | config FSL_PCIE |
677 | bool | |
678 | depends on PPC_86xx | |
679 | ||
14cf11af PM |
680 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
681 | config MCA | |
682 | bool | |
683 | ||
684 | config PCI | |
53158620 | 685 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 | 686 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
cb9e4d10 | 687 | || MPC7448HPC2 || PPC_PS3 || PPC_HOLLY |
53158620 JL |
688 | default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ |
689 | && !PPC_85xx && !PPC_86xx | |
14cf11af PM |
690 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
691 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
df87ef55 | 692 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
693 | help |
694 | Find out whether your system includes a PCI bus. PCI is the name of | |
695 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
696 | your box. If you say Y here, the kernel will include drivers and | |
697 | infrastructure code to support PCI bus devices. | |
698 | ||
699 | config PCI_DOMAINS | |
700 | bool | |
701 | default PCI | |
702 | ||
14cf11af PM |
703 | config PCI_QSPAN |
704 | bool "QSpan PCI" | |
705 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 706 | select PPC_I8259 |
14cf11af PM |
707 | help |
708 | Say Y here if you have a system based on a Motorola 8xx-series | |
709 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
710 | ||
711 | config PCI_8260 | |
712 | bool | |
713 | depends on PCI && 8260 | |
25635c71 | 714 | select PPC_INDIRECT_PCI |
14cf11af PM |
715 | default y |
716 | ||
717 | config 8260_PCI9 | |
4a3ecc62 | 718 | bool "Enable workaround for MPC826x erratum PCI 9" |
14cf11af PM |
719 | depends on PCI_8260 && !ADS8272 |
720 | default y | |
721 | ||
722 | choice | |
4a3ecc62 | 723 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
724 | depends on 8260_PCI9 |
725 | ||
726 | config 8260_PCI9_IDMA1 | |
727 | bool "IDMA1" | |
728 | ||
729 | config 8260_PCI9_IDMA2 | |
730 | bool "IDMA2" | |
731 | ||
732 | config 8260_PCI9_IDMA3 | |
733 | bool "IDMA3" | |
734 | ||
735 | config 8260_PCI9_IDMA4 | |
736 | bool "IDMA4" | |
737 | ||
738 | endchoice | |
739 | ||
bb53bb3d JM |
740 | source "drivers/pci/pcie/Kconfig" |
741 | ||
14cf11af PM |
742 | source "drivers/pci/Kconfig" |
743 | ||
744 | source "drivers/pcmcia/Kconfig" | |
745 | ||
746 | source "drivers/pci/hotplug/Kconfig" | |
747 | ||
748 | endmenu | |
749 | ||
750 | menu "Advanced setup" | |
751 | depends on PPC32 | |
752 | ||
753 | config ADVANCED_OPTIONS | |
754 | bool "Prompt for advanced kernel configuration options" | |
755 | help | |
756 | This option will enable prompting for a variety of advanced kernel | |
757 | configuration options. These options can cause the kernel to not | |
758 | work if they are set incorrectly, but can be used to optimize certain | |
759 | aspects of kernel memory management. | |
760 | ||
761 | Unless you know what you are doing, say N here. | |
762 | ||
763 | comment "Default settings for advanced configuration options are used" | |
764 | depends on !ADVANCED_OPTIONS | |
765 | ||
766 | config HIGHMEM_START_BOOL | |
767 | bool "Set high memory pool address" | |
768 | depends on ADVANCED_OPTIONS && HIGHMEM | |
769 | help | |
770 | This option allows you to set the base address of the kernel virtual | |
771 | area used to map high memory pages. This can be useful in | |
772 | optimizing the layout of kernel virtual memory. | |
773 | ||
774 | Say N here unless you know what you are doing. | |
775 | ||
776 | config HIGHMEM_START | |
777 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
778 | default "0xfe000000" | |
779 | ||
780 | config LOWMEM_SIZE_BOOL | |
781 | bool "Set maximum low memory" | |
782 | depends on ADVANCED_OPTIONS | |
783 | help | |
784 | This option allows you to set the maximum amount of memory which | |
785 | will be used as "low memory", that is, memory which the kernel can | |
786 | access directly, without having to set up a kernel virtual mapping. | |
787 | This can be useful in optimizing the layout of kernel virtual | |
788 | memory. | |
789 | ||
790 | Say N here unless you know what you are doing. | |
791 | ||
792 | config LOWMEM_SIZE | |
793 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
794 | default "0x30000000" | |
795 | ||
796 | config KERNEL_START_BOOL | |
797 | bool "Set custom kernel base address" | |
798 | depends on ADVANCED_OPTIONS | |
799 | help | |
800 | This option allows you to set the kernel virtual address at which | |
801 | the kernel will map low memory (the kernel image will be linked at | |
802 | this address). This can be useful in optimizing the virtual memory | |
803 | layout of the system. | |
804 | ||
805 | Say N here unless you know what you are doing. | |
806 | ||
807 | config KERNEL_START | |
808 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
809 | default "0xc0000000" | |
810 | ||
811 | config TASK_SIZE_BOOL | |
812 | bool "Set custom user task size" | |
813 | depends on ADVANCED_OPTIONS | |
814 | help | |
815 | This option allows you to set the amount of virtual address space | |
816 | allocated to user tasks. This can be useful in optimizing the | |
817 | virtual memory layout of the system. | |
818 | ||
819 | Say N here unless you know what you are doing. | |
820 | ||
821 | config TASK_SIZE | |
822 | hex "Size of user task space" if TASK_SIZE_BOOL | |
823 | default "0x80000000" | |
824 | ||
825 | config CONSISTENT_START_BOOL | |
826 | bool "Set custom consistent memory pool address" | |
827 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
828 | help | |
829 | This option allows you to set the base virtual address | |
4b3f686d | 830 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
831 | memory is used to make consistent memory allocations. |
832 | ||
833 | config CONSISTENT_START | |
834 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
835 | default "0xff100000" if NOT_COHERENT_CACHE | |
836 | ||
837 | config CONSISTENT_SIZE_BOOL | |
838 | bool "Set custom consistent memory pool size" | |
839 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
840 | help | |
4b3f686d | 841 | This option allows you to set the size of the |
14cf11af PM |
842 | consistent memory pool. This pool of virtual memory |
843 | is used to make consistent memory allocations. | |
844 | ||
845 | config CONSISTENT_SIZE | |
846 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
847 | default "0x00200000" if NOT_COHERENT_CACHE | |
848 | ||
849 | config BOOT_LOAD_BOOL | |
850 | bool "Set the boot link/load address" | |
851 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
852 | help | |
853 | This option allows you to set the initial load address of the zImage | |
854 | or zImage.initrd file. This can be useful if you are on a board | |
855 | which has a small amount of memory. | |
856 | ||
857 | Say N here unless you know what you are doing. | |
858 | ||
859 | config BOOT_LOAD | |
860 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
861 | default "0x00400000" if 40x || 8xx || 8260 | |
862 | default "0x01000000" if 44x | |
863 | default "0x00800000" | |
864 | ||
865 | config PIN_TLB | |
866 | bool "Pinned Kernel TLBs (860 ONLY)" | |
867 | depends on ADVANCED_OPTIONS && 8xx | |
868 | endmenu | |
869 | ||
cabb5587 SR |
870 | if PPC64 |
871 | config KERNEL_START | |
872 | hex | |
eeb2d218 | 873 | default "0xc000000000000000" |
cabb5587 SR |
874 | endif |
875 | ||
14cf11af PM |
876 | source "net/Kconfig" |
877 | ||
878 | source "drivers/Kconfig" | |
879 | ||
880 | source "fs/Kconfig" | |
881 | ||
882 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
883 | ||
884 | # XXX source "arch/ppc/8260_io/Kconfig" | |
885 | ||
98658538 LY |
886 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
887 | ||
14cf11af PM |
888 | source "lib/Kconfig" |
889 | ||
cd6b0762 | 890 | menu "Instrumentation Support" |
98750261 | 891 | depends on EXPERIMENTAL |
cd6b0762 | 892 | |
14cf11af PM |
893 | source "arch/powerpc/oprofile/Kconfig" |
894 | ||
cd6b0762 PP |
895 | config KPROBES |
896 | bool "Kprobes (EXPERIMENTAL)" | |
82090035 | 897 | depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES |
cd6b0762 PP |
898 | help |
899 | Kprobes allows you to trap at almost any kernel address and | |
900 | execute a callback function. register_kprobe() establishes | |
901 | a probepoint and specifies the callback. Kprobes is useful | |
902 | for kernel debugging, non-intrusive instrumentation and testing. | |
903 | If in doubt, say "N". | |
904 | endmenu | |
905 | ||
14cf11af PM |
906 | source "arch/powerpc/Kconfig.debug" |
907 | ||
908 | source "security/Kconfig" | |
909 | ||
910 | config KEYS_COMPAT | |
911 | bool | |
912 | depends on COMPAT && KEYS | |
913 | default y | |
914 | ||
915 | source "crypto/Kconfig" |