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