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