Commit | Line | Data |
---|---|---|
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 | ||
a0ae9c7c | 7 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 8 | |
14cf11af PM |
9 | config PPC32 |
10 | bool | |
11 | default y if !PPC64 | |
12 | ||
13 | config 64BIT | |
14 | bool | |
15 | default y if PPC64 | |
16 | ||
2578bfae SR |
17 | config WORD_SIZE |
18 | int | |
19 | default 64 if PPC64 | |
20 | default 32 if !PPC64 | |
21 | ||
600715dc JF |
22 | config ARCH_PHYS_ADDR_T_64BIT |
23 | def_bool PPC64 || PHYS_64BIT | |
24 | ||
14cf11af PM |
25 | config MMU |
26 | bool | |
27 | default y | |
28 | ||
aa3be5f3 TB |
29 | config GENERIC_CMOS_UPDATE |
30 | def_bool y | |
31 | ||
4a4cfe38 TB |
32 | config GENERIC_TIME |
33 | def_bool y | |
34 | ||
35 | config GENERIC_TIME_VSYSCALL | |
36 | def_bool y | |
37 | ||
d831d0b8 TB |
38 | config GENERIC_CLOCKEVENTS |
39 | def_bool y | |
40 | ||
14cf11af PM |
41 | config GENERIC_HARDIRQS |
42 | bool | |
43 | default y | |
44 | ||
988c388a | 45 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 46 | def_bool PPC64 |
47 | ||
0d7012a9 IM |
48 | config IRQ_PER_CPU |
49 | bool | |
50 | default y | |
51 | ||
fd3e0bbc CH |
52 | config STACKTRACE_SUPPORT |
53 | bool | |
54 | default y | |
55 | ||
01f4b8b8 AB |
56 | config HAVE_LATENCYTOP_SUPPORT |
57 | def_bool y | |
58 | ||
945feb17 BH |
59 | config TRACE_IRQFLAGS_SUPPORT |
60 | bool | |
61 | depends on PPC64 | |
62 | default y | |
63 | ||
64 | config LOCKDEP_SUPPORT | |
65 | bool | |
66 | default y | |
67 | ||
14cf11af PM |
68 | config RWSEM_GENERIC_SPINLOCK |
69 | bool | |
70 | ||
71 | config RWSEM_XCHGADD_ALGORITHM | |
72 | bool | |
73 | default y | |
74 | ||
95c354fe NP |
75 | config GENERIC_LOCKBREAK |
76 | bool | |
77 | default y | |
78 | depends on SMP && PREEMPT | |
79 | ||
f0d1b0b3 DH |
80 | config ARCH_HAS_ILOG2_U32 |
81 | bool | |
ef55d53c | 82 | default y |
f0d1b0b3 DH |
83 | |
84 | config ARCH_HAS_ILOG2_U64 | |
85 | bool | |
ef55d53c | 86 | default y if 64BIT |
f0d1b0b3 | 87 | |
e779b2f9 AM |
88 | config GENERIC_HWEIGHT |
89 | bool | |
90 | default y | |
91 | ||
14cf11af PM |
92 | config GENERIC_CALIBRATE_DELAY |
93 | bool | |
94 | default y | |
95 | ||
0a9cb46a JM |
96 | config GENERIC_FIND_NEXT_BIT |
97 | bool | |
98 | default y | |
99 | ||
b7ce3415 AV |
100 | config GENERIC_GPIO |
101 | bool | |
102 | help | |
103 | Generic GPIO API support | |
104 | ||
f057eac0 SR |
105 | config ARCH_NO_VIRT_TO_BUS |
106 | def_bool PPC64 | |
107 | ||
14cf11af PM |
108 | config PPC |
109 | bool | |
110 | default y | |
606576ce | 111 | select HAVE_FUNCTION_TRACER |
7444a72e | 112 | select ARCH_WANT_OPTIONAL_GPIOLIB |
ec7748b5 | 113 | select HAVE_IDE |
a1f242ff | 114 | select HAVE_IOREMAP_PROT |
58340a07 | 115 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
3f550096 | 116 | select HAVE_KPROBES |
17ce452f | 117 | select HAVE_ARCH_KGDB |
9edddaa2 | 118 | select HAVE_KRETPROBES |
dec2b0d0 | 119 | select HAVE_ARCH_TRACEHOOK |
d9b2b2a2 | 120 | select HAVE_LMB |
7ff86b03 | 121 | select HAVE_DMA_ATTRS if PPC64 |
b7d7a240 | 122 | select USE_GENERIC_SMP_HELPERS if SMP |
4e491d14 | 123 | select HAVE_OPROFILE |
14cf11af PM |
124 | |
125 | config EARLY_PRINTK | |
126 | bool | |
51d3082f | 127 | default y |
14cf11af PM |
128 | |
129 | config COMPAT | |
130 | bool | |
131 | default y if PPC64 | |
01e31dba | 132 | select COMPAT_BINFMT_ELF |
14cf11af PM |
133 | |
134 | config SYSVIPC_COMPAT | |
135 | bool | |
136 | depends on COMPAT && SYSVIPC | |
137 | default y | |
138 | ||
139 | # All PPC32s use generic nvram driver through ppc_md | |
140 | config GENERIC_NVRAM | |
141 | bool | |
142 | default y if PPC32 | |
143 | ||
ae1e9130 | 144 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
145 | bool |
146 | default y | |
147 | ||
148 | config ARCH_MAY_HAVE_PC_FDC | |
149 | bool | |
bed59275 | 150 | default !PPC_PSERIES || PCI |
14cf11af | 151 | |
08264cbc KG |
152 | config PPC_OF |
153 | def_bool y | |
154 | ||
97e873e5 SR |
155 | config OF |
156 | def_bool y | |
157 | ||
08264cbc KG |
158 | config PPC_UDBG_16550 |
159 | bool | |
160 | default n | |
161 | ||
08264cbc KG |
162 | config GENERIC_TBSYNC |
163 | bool | |
164 | default y if PPC32 && SMP | |
165 | default n | |
166 | ||
e65e1fc2 AV |
167 | config AUDIT_ARCH |
168 | bool | |
169 | default y | |
170 | ||
73c9ceab JF |
171 | config GENERIC_BUG |
172 | bool | |
173 | default y | |
174 | depends on BUG | |
175 | ||
b3028878 | 176 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 177 | default y if PMAC_APM_EMU |
b3028878 JB |
178 | bool |
179 | ||
f4fc4a5b KG |
180 | config DEFAULT_UIMAGE |
181 | bool | |
182 | help | |
183 | Used to allow a board to specify it wants a uImage built by default | |
184 | default n | |
185 | ||
b09c1644 SW |
186 | config REDBOOT |
187 | bool | |
188 | ||
801e4062 | 189 | config HIBERNATE_32 |
543b9fd3 | 190 | bool |
801e4062 JB |
191 | depends on (PPC_PMAC && !SMP) || BROKEN |
192 | default y | |
193 | ||
194 | config HIBERNATE_64 | |
195 | bool | |
196 | depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL) | |
197 | default y | |
198 | ||
199 | config ARCH_HIBERNATION_POSSIBLE | |
200 | bool | |
201 | depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32) | |
543b9fd3 JB |
202 | default y |
203 | ||
f4cb5700 JB |
204 | config ARCH_SUSPEND_POSSIBLE |
205 | def_bool y | |
d49747bd | 206 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx |
f4cb5700 | 207 | |
4c75a6f4 BH |
208 | config PPC_DCR_NATIVE |
209 | bool | |
210 | default n | |
211 | ||
212 | config PPC_DCR_MMIO | |
213 | bool | |
214 | default n | |
215 | ||
216 | config PPC_DCR | |
217 | bool | |
218 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
219 | default y | |
220 | ||
4c9d2800 BH |
221 | config PPC_OF_PLATFORM_PCI |
222 | bool | |
373a6da1 | 223 | depends on PCI |
4c9d2800 BH |
224 | depends on PPC64 # not supported on 32 bits yet |
225 | default n | |
226 | ||
14cf11af PM |
227 | source "init/Kconfig" |
228 | ||
dc52ddc0 MH |
229 | source "kernel/Kconfig.freezer" |
230 | ||
a2d2e1ec | 231 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 232 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 233 | |
14cf11af PM |
234 | menu "Kernel options" |
235 | ||
236 | config HIGHMEM | |
237 | bool "High memory support" | |
238 | depends on PPC32 | |
239 | ||
1ad74998 | 240 | source kernel/time/Kconfig |
14cf11af PM |
241 | source kernel/Kconfig.hz |
242 | source kernel/Kconfig.preempt | |
243 | source "fs/Kconfig.binfmt" | |
244 | ||
ba72cb8c MG |
245 | config HUGETLB_PAGE_SIZE_VARIABLE |
246 | bool | |
247 | depends on HUGETLB_PAGE | |
248 | default y | |
249 | ||
14cf11af PM |
250 | config MATH_EMULATION |
251 | bool "Math emulation" | |
4d52719a | 252 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
253 | ---help--- |
254 | Some PowerPC chips designed for embedded applications do not have | |
255 | a floating-point unit and therefore do not implement the | |
256 | floating-point instructions in the PowerPC instruction set. If you | |
257 | say Y here, the kernel will include code to emulate a floating-point | |
258 | unit, which will allow programs that use floating-point | |
259 | instructions to run. | |
260 | ||
5dd57a13 SW |
261 | config 8XX_MINIMAL_FPEMU |
262 | bool "Minimal math emulation for 8xx" | |
263 | depends on 8xx && !MATH_EMULATION | |
264 | help | |
265 | Older arch/ppc kernels still emulated a few floating point | |
266 | instructions such as load and store, even when full math | |
267 | emulation is disabled. Say "Y" here if you want to preserve | |
268 | this behavior. | |
269 | ||
270 | It is recommended that you build a soft-float userspace instead. | |
271 | ||
14cf11af | 272 | config IOMMU_VMERGE |
768cc2d3 LV |
273 | bool "Enable IOMMU virtual merging" |
274 | depends on PPC64 | |
275 | default y | |
14cf11af PM |
276 | help |
277 | Cause IO segments sent to a device for DMA to be merged virtually | |
278 | by the IOMMU when they happen to have been allocated contiguously. | |
279 | This doesn't add pressure to the IOMMU allocator. However, some | |
280 | drivers don't support getting large merged segments coming back | |
768cc2d3 LV |
281 | from *_map_sg(). |
282 | ||
283 | Most drivers don't have this problem; it is safe to say Y here. | |
14cf11af | 284 | |
fb3475e9 FT |
285 | config IOMMU_HELPER |
286 | def_bool PPC64 | |
287 | ||
15e09c0e BB |
288 | config PPC_NEED_DMA_SYNC_OPS |
289 | def_bool y | |
290 | depends on NOT_COHERENT_CACHE | |
291 | ||
14cf11af PM |
292 | config HOTPLUG_CPU |
293 | bool "Support for enabling/disabling CPUs" | |
294 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
295 | ---help--- | |
296 | Say Y here to be able to disable and re-enable individual | |
297 | CPUs at runtime on SMP machines. | |
298 | ||
299 | Say N if you are unsure. | |
300 | ||
cc57637b YG |
301 | config ARCH_ENABLE_MEMORY_HOTPLUG |
302 | def_bool y | |
303 | ||
a99824f3 BP |
304 | config ARCH_HAS_WALK_MEMORY |
305 | def_bool y | |
306 | ||
1482471d BP |
307 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
308 | def_bool y | |
309 | ||
14cf11af PM |
310 | config KEXEC |
311 | bool "kexec system call (EXPERIMENTAL)" | |
fd4ba7e2 | 312 | depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL |
14cf11af PM |
313 | help |
314 | kexec is a system call that implements the ability to shutdown your | |
315 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 316 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
317 | you can start any kernel with it, not just Linux. |
318 | ||
1f1332f7 | 319 | The name comes from the similarity to the exec system call. |
14cf11af PM |
320 | |
321 | It is an ongoing process to be certain the hardware in a machine | |
322 | is properly shutdown, so do not be surprised if this code does not | |
323 | initially work for you. It may help to enable device hotplugging | |
324 | support. As of this writing the exact hardware interface is | |
325 | strongly in flux, so no good recommendation can be made. | |
326 | ||
e8625d46 | 327 | config CRASH_DUMP |
3420b5da | 328 | bool "Build a kdump crash kernel" |
f8f50b1b | 329 | depends on (PPC64 && RELOCATABLE) || 6xx |
e8625d46 HM |
330 | help |
331 | Build a kernel suitable for use as a kdump capture kernel. | |
54622f10 MK |
332 | The same kernel binary can be used as production kernel and dump |
333 | capture kernel. | |
e8625d46 | 334 | |
242f271c MA |
335 | config PHYP_DUMP |
336 | bool "Hypervisor-assisted dump (EXPERIMENTAL)" | |
337 | depends on PPC_PSERIES && EXPERIMENTAL | |
338 | help | |
339 | Hypervisor-assisted dump is meant to be a kdump replacement | |
340 | offering robustness and speed not possible without system | |
341 | hypervisor assistence. | |
342 | ||
343 | If unsure, say "N" | |
344 | ||
14cf11af PM |
345 | config PPCBUG_NVRAM |
346 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
347 | default y if PPC_PREP | |
348 | ||
349 | config IRQ_ALL_CPUS | |
350 | bool "Distribute interrupts on all CPUs by default" | |
351 | depends on SMP && !MV64360 | |
352 | help | |
353 | This option gives the kernel permission to distribute IRQs across | |
354 | multiple CPUs. Saying N here will route all IRQs to the first | |
355 | CPU. Generally saying Y is safe, although some problems have been | |
356 | reported with SMP Power Macintoshes with this option enabled. | |
357 | ||
ffa27b6b AW |
358 | config NUMA |
359 | bool "NUMA support" | |
360 | depends on PPC64 | |
361 | default y if SMP && PPC_PSERIES | |
362 | ||
c80d79d7 YG |
363 | config NODES_SHIFT |
364 | int | |
365 | default "4" | |
366 | depends on NEED_MULTIPLE_NODES | |
367 | ||
14cf11af PM |
368 | config ARCH_SELECT_MEMORY_MODEL |
369 | def_bool y | |
370 | depends on PPC64 | |
371 | ||
372 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
373 | def_bool y |
374 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 375 | |
45fb6cea | 376 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 377 | def_bool y |
9100b205 | 378 | depends on PPC64 |
d29eff7b | 379 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 380 | |
45fb6cea | 381 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 382 | def_bool y |
78bde53e | 383 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 384 | |
c67c3cb4 | 385 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 386 | def_bool y |
c67c3cb4 MG |
387 | |
388 | source "mm/Kconfig" | |
14cf11af | 389 | |
7e9191da MK |
390 | config ARCH_MEMORY_PROBE |
391 | def_bool y | |
392 | depends on MEMORY_HOTPLUG | |
393 | ||
75167957 AW |
394 | # Some NUMA nodes have memory ranges that span |
395 | # other nodes. Even though a pfn is valid and | |
396 | # between a node's start and end pfns, it may not | |
397 | # reside on that node. See memmap_init_zone() | |
398 | # for details. | |
399 | config NODES_SPAN_OTHER_NODES | |
400 | def_bool y | |
401 | depends on NEED_MULTIPLE_NODES | |
402 | ||
16c2d476 BH |
403 | config PPC_HAS_HASH_64K |
404 | bool | |
405 | depends on PPC64 | |
406 | default n | |
407 | ||
ca9153a3 IY |
408 | choice |
409 | prompt "Page size" | |
410 | default PPC_4K_PAGES | |
3c726f8d | 411 | help |
ca9153a3 IY |
412 | Select the kernel logical page size. Increasing the page size |
413 | will reduce software overhead at each page boundary, allow | |
414 | hardware prefetch mechanisms to be more effective, and allow | |
415 | larger dma transfers increasing IO efficiency and reducing | |
416 | overhead. However the utilization of memory will increase. | |
417 | For example, each cached file will using a multiple of the | |
418 | page size to hold its contents and the difference between the | |
419 | end of file and the end of page is wasted. | |
420 | ||
421 | Some dedicated systems, such as software raid serving with | |
422 | accelerated calculations, have shown significant increases. | |
423 | ||
424 | If you configure a 64 bit kernel for 64k pages but the | |
425 | processor does not support them, then the kernel will simulate | |
426 | them with 4k pages, loading them on demand, but with the | |
427 | reduced software overhead and larger internal fragmentation. | |
428 | For the 32 bit kernel, a large page option will not be offered | |
429 | unless it is supported by the configured processor. | |
430 | ||
431 | If unsure, choose 4K_PAGES. | |
432 | ||
433 | config PPC_4K_PAGES | |
434 | bool "4k page size" | |
435 | ||
436 | config PPC_16K_PAGES | |
437 | bool "16k page size" if 44x | |
438 | ||
439 | config PPC_64K_PAGES | |
440 | bool "64k page size" if 44x || PPC_STD_MMU_64 | |
441 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 | |
442 | ||
443 | endchoice | |
3c726f8d | 444 | |
53bcddb9 SR |
445 | config FORCE_MAX_ZONEORDER |
446 | int "Maximum zone order" | |
ca9153a3 IY |
447 | range 9 64 if PPC_STD_MMU_64 && PPC_64K_PAGES |
448 | default "9" if PPC_STD_MMU_64 && PPC_64K_PAGES | |
449 | range 13 64 if PPC_STD_MMU_64 && !PPC_64K_PAGES | |
450 | default "13" if PPC_STD_MMU_64 && !PPC_64K_PAGES | |
451 | range 9 64 if PPC_STD_MMU_32 && PPC_16K_PAGES | |
452 | default "9" if PPC_STD_MMU_32 && PPC_16K_PAGES | |
453 | range 7 64 if PPC_STD_MMU_32 && PPC_64K_PAGES | |
454 | default "7" if PPC_STD_MMU_32 && PPC_64K_PAGES | |
ebe40c5c | 455 | range 11 64 |
53bcddb9 SR |
456 | default "11" |
457 | help | |
458 | The kernel memory allocator divides physically contiguous memory | |
459 | blocks into "zones", where each zone is a power of two number of | |
460 | pages. This option selects the largest power of two that the kernel | |
461 | keeps in the memory allocator. If you need to allocate very large | |
462 | blocks of physically contiguous memory, then you may need to | |
463 | increase this value. | |
464 | ||
465 | This config option is actually maximum order plus one. For example, | |
466 | a value of 11 means that the largest free memory block is 2^10 pages. | |
467 | ||
468 | The page size is not necessarily 4KB. For example, on 64-bit | |
469 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
470 | this in mind when choosing a value for this option. | |
471 | ||
fa28237c PM |
472 | config PPC_SUBPAGE_PROT |
473 | bool "Support setting protections for 4k subpages" | |
ca9153a3 | 474 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
fa28237c PM |
475 | help |
476 | This option adds support for a system call to allow user programs | |
477 | to set access permissions (read/write, readonly, or no access) | |
478 | on the 4k subpages of each 64k page. | |
479 | ||
14cf11af PM |
480 | config SCHED_SMT |
481 | bool "SMT (Hyperthreading) scheduler support" | |
482 | depends on PPC64 && SMP | |
14cf11af PM |
483 | help |
484 | SMT scheduler support improves the CPU scheduler's decision making | |
485 | when dealing with POWER5 cpus at a cost of slightly increased | |
486 | overhead in some places. If unsure say N here. | |
487 | ||
488 | config PROC_DEVICETREE | |
5f296755 PM |
489 | bool "Support for device tree in /proc" |
490 | depends on PROC_FS | |
14cf11af PM |
491 | help |
492 | This option adds a device-tree directory under /proc which contains | |
493 | an image of the device tree that the kernel copies from Open | |
5f296755 | 494 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 495 | |
14cf11af PM |
496 | config CMDLINE_BOOL |
497 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
498 | |
499 | config CMDLINE | |
500 | string "Initial kernel command string" | |
501 | depends on CMDLINE_BOOL | |
502 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
503 | help | |
504 | On some platforms, there is currently no way for the boot loader to | |
505 | pass arguments to the kernel. For these platforms, you can supply | |
506 | some command-line options at build time by entering them here. In | |
507 | most cases you will need to specify the root device here. | |
508 | ||
c356aa45 GL |
509 | config EXTRA_TARGETS |
510 | string "Additional default image types" | |
511 | help | |
512 | List additional targets to be built by the bootwrapper here (separated | |
513 | by spaces). This is useful for targets that depend of device tree | |
514 | files in the .dts directory. | |
515 | ||
516 | Targets in this list will be build as part of the default build | |
517 | target, or when the user does a 'make zImage' or a | |
518 | 'make zImage.initrd'. | |
519 | ||
520 | If unsure, leave blank | |
521 | ||
14cf11af | 522 | if !44x || BROKEN |
b28f5081 JB |
523 | config ARCH_WANTS_FREEZER_CONTROL |
524 | def_bool y | |
525 | depends on ADB_PMU | |
526 | ||
14cf11af PM |
527 | source kernel/power/Kconfig |
528 | endif | |
529 | ||
530 | config SECCOMP | |
531 | bool "Enable seccomp to safely compute untrusted bytecode" | |
532 | depends on PROC_FS | |
533 | default y | |
534 | help | |
535 | This kernel feature is useful for number crunching applications | |
536 | that may need to compute untrusted bytecode during their | |
537 | execution. By using pipes or other transports made available to | |
538 | the process as file descriptors supporting the read/write | |
539 | syscalls, it's possible to isolate those applications in | |
540 | their own address space using seccomp. Once seccomp is | |
541 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
542 | and the task is only allowed to execute a few safe syscalls | |
543 | defined by each seccomp mode. | |
544 | ||
545 | If unsure, say Y. Only embedded should say N here. | |
546 | ||
547 | endmenu | |
548 | ||
549 | config ISA_DMA_API | |
550 | bool | |
373a6da1 | 551 | default !PPC_ISERIES || PCI |
14cf11af PM |
552 | |
553 | menu "Bus options" | |
554 | ||
555 | config ISA | |
556 | bool "Support for ISA-bus hardware" | |
557 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 558 | select PPC_I8259 |
14cf11af PM |
559 | help |
560 | Find out whether you have ISA slots on your motherboard. ISA is the | |
561 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
562 | inside your box. If you have an Apple machine, say N here; if you | |
563 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
564 | you have an embedded board, consult your board documentation. | |
565 | ||
5ac6da66 CL |
566 | config ZONE_DMA |
567 | bool | |
568 | default y | |
569 | ||
14cf11af PM |
570 | config GENERIC_ISA_DMA |
571 | bool | |
572 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
573 | default y | |
574 | ||
25635c71 PM |
575 | config PPC_INDIRECT_PCI |
576 | bool | |
577 | depends on PCI | |
63dafe57 | 578 | default y if 40x || 44x |
25635c71 PM |
579 | default n |
580 | ||
14cf11af PM |
581 | config EISA |
582 | bool | |
583 | ||
584 | config SBUS | |
585 | bool | |
586 | ||
08264cbc KG |
587 | config FSL_SOC |
588 | bool | |
589 | ||
55c44991 RZ |
590 | config FSL_PCI |
591 | bool | |
592 | select PPC_INDIRECT_PCI | |
593 | ||
2a706919 SR |
594 | config 4xx_SOC |
595 | bool | |
596 | ||
acaa7aa3 AV |
597 | config FSL_LBC |
598 | bool | |
599 | help | |
600 | Freescale Localbus support | |
601 | ||
83ff9dcf AV |
602 | config FSL_GTM |
603 | bool | |
604 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
605 | help | |
606 | Freescale General-purpose Timers support | |
607 | ||
14cf11af PM |
608 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
609 | config MCA | |
610 | bool | |
611 | ||
b500563b JR |
612 | # Platforms that what PCI turned unconditionally just do select PCI |
613 | # in their config node. Platforms that want to choose at config | |
614 | # time should select PPC_PCI_CHOICE | |
615 | config PPC_PCI_CHOICE | |
616 | bool | |
617 | ||
14cf11af | 618 | config PCI |
b500563b JR |
619 | bool "PCI support" if PPC_PCI_CHOICE |
620 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
53158620 | 621 | && !PPC_85xx && !PPC_86xx |
f21f49ea | 622 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 623 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 624 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
625 | help |
626 | Find out whether your system includes a PCI bus. PCI is the name of | |
627 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
628 | your box. If you say Y here, the kernel will include drivers and | |
629 | infrastructure code to support PCI bus devices. | |
630 | ||
631 | config PCI_DOMAINS | |
36e23590 MW |
632 | def_bool PCI |
633 | ||
634 | config PCI_SYSCALL | |
635 | def_bool PCI | |
14cf11af | 636 | |
14cf11af PM |
637 | config PCI_QSPAN |
638 | bool "QSpan PCI" | |
639 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 640 | select PPC_I8259 |
14cf11af PM |
641 | help |
642 | Say Y here if you have a system based on a Motorola 8xx-series | |
643 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
644 | ||
645 | config PCI_8260 | |
646 | bool | |
647 | depends on PCI && 8260 | |
25635c71 | 648 | select PPC_INDIRECT_PCI |
14cf11af PM |
649 | default y |
650 | ||
651 | config 8260_PCI9 | |
4a3ecc62 | 652 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 653 | depends on PCI_8260 && !8272 |
14cf11af PM |
654 | default y |
655 | ||
656 | choice | |
4a3ecc62 | 657 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
658 | depends on 8260_PCI9 |
659 | ||
660 | config 8260_PCI9_IDMA1 | |
661 | bool "IDMA1" | |
662 | ||
663 | config 8260_PCI9_IDMA2 | |
664 | bool "IDMA2" | |
665 | ||
666 | config 8260_PCI9_IDMA3 | |
667 | bool "IDMA3" | |
668 | ||
669 | config 8260_PCI9_IDMA4 | |
670 | bool "IDMA4" | |
671 | ||
672 | endchoice | |
673 | ||
bb53bb3d JM |
674 | source "drivers/pci/pcie/Kconfig" |
675 | ||
14cf11af PM |
676 | source "drivers/pci/Kconfig" |
677 | ||
678 | source "drivers/pcmcia/Kconfig" | |
679 | ||
680 | source "drivers/pci/hotplug/Kconfig" | |
681 | ||
f1f389d5 ZW |
682 | config HAS_RAPIDIO |
683 | bool | |
684 | default n | |
685 | ||
686 | config RAPIDIO | |
687 | bool "RapidIO support" | |
688 | depends on HAS_RAPIDIO | |
689 | help | |
690 | If you say Y here, the kernel will include drivers and | |
691 | infrastructure code to support RapidIO interconnect devices. | |
692 | ||
693 | source "drivers/rapidio/Kconfig" | |
694 | ||
14cf11af PM |
695 | endmenu |
696 | ||
697 | menu "Advanced setup" | |
698 | depends on PPC32 | |
699 | ||
700 | config ADVANCED_OPTIONS | |
701 | bool "Prompt for advanced kernel configuration options" | |
702 | help | |
703 | This option will enable prompting for a variety of advanced kernel | |
704 | configuration options. These options can cause the kernel to not | |
705 | work if they are set incorrectly, but can be used to optimize certain | |
706 | aspects of kernel memory management. | |
707 | ||
708 | Unless you know what you are doing, say N here. | |
709 | ||
710 | comment "Default settings for advanced configuration options are used" | |
711 | depends on !ADVANCED_OPTIONS | |
712 | ||
14cf11af PM |
713 | config LOWMEM_SIZE_BOOL |
714 | bool "Set maximum low memory" | |
715 | depends on ADVANCED_OPTIONS | |
716 | help | |
717 | This option allows you to set the maximum amount of memory which | |
718 | will be used as "low memory", that is, memory which the kernel can | |
719 | access directly, without having to set up a kernel virtual mapping. | |
720 | This can be useful in optimizing the layout of kernel virtual | |
721 | memory. | |
722 | ||
723 | Say N here unless you know what you are doing. | |
724 | ||
725 | config LOWMEM_SIZE | |
726 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
727 | default "0x30000000" | |
728 | ||
37dd2bad KG |
729 | config RELOCATABLE |
730 | bool "Build a relocatable kernel (EXPERIMENTAL)" | |
731 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
732 | help | |
733 | This builds a kernel image that is capable of running at the | |
734 | location the kernel is loaded at (some alignment restrictions may | |
735 | exist). | |
736 | ||
737 | One use is for the kexec on panic case where the recovery kernel | |
738 | must live at a different physical address than the primary | |
739 | kernel. | |
740 | ||
741 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
742 | it has been loaded at and the compile time physical addresses | |
743 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
744 | setting can still be useful to bootwrappers that need to know the | |
745 | load location of the kernel (eg. u-boot/mkimage). | |
746 | ||
747 | config PAGE_OFFSET_BOOL | |
748 | bool "Set custom page offset address" | |
749 | depends on ADVANCED_OPTIONS | |
750 | help | |
751 | This option allows you to set the kernel virtual address at which | |
752 | the kernel will map low memory. This can be useful in optimizing | |
753 | the virtual memory layout of the system. | |
754 | ||
755 | Say N here unless you know what you are doing. | |
756 | ||
757 | config PAGE_OFFSET | |
758 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
759 | default "0xc0000000" | |
760 | ||
14cf11af PM |
761 | config KERNEL_START_BOOL |
762 | bool "Set custom kernel base address" | |
763 | depends on ADVANCED_OPTIONS | |
764 | help | |
765 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
766 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
767 | however there are times (like kdump) that one might not want them | |
768 | to be the same. | |
14cf11af PM |
769 | |
770 | Say N here unless you know what you are doing. | |
771 | ||
772 | config KERNEL_START | |
773 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad KG |
774 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
775 | default "0xc2000000" if CRASH_DUMP | |
14cf11af PM |
776 | default "0xc0000000" |
777 | ||
37dd2bad KG |
778 | config PHYSICAL_START_BOOL |
779 | bool "Set physical address where the kernel is loaded" | |
780 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
781 | help | |
782 | This gives the physical address where the kernel is loaded. | |
783 | ||
784 | Say N here unless you know what you are doing. | |
785 | ||
786 | config PHYSICAL_START | |
787 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
788 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP | |
789 | default "0x00000000" | |
790 | ||
791 | config PHYSICAL_ALIGN | |
792 | hex | |
793 | default "0x10000000" if FSL_BOOKE | |
794 | help | |
795 | This value puts the alignment restrictions on physical address | |
796 | where kernel is loaded and run from. Kernel is compiled for an | |
797 | address which meets above alignment restriction. | |
798 | ||
14cf11af PM |
799 | config TASK_SIZE_BOOL |
800 | bool "Set custom user task size" | |
801 | depends on ADVANCED_OPTIONS | |
802 | help | |
803 | This option allows you to set the amount of virtual address space | |
804 | allocated to user tasks. This can be useful in optimizing the | |
805 | virtual memory layout of the system. | |
806 | ||
807 | Say N here unless you know what you are doing. | |
808 | ||
809 | config TASK_SIZE | |
810 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
811 | default "0x80000000" if PPC_PREP || PPC_8xx |
812 | default "0xc0000000" | |
14cf11af PM |
813 | |
814 | config CONSISTENT_START_BOOL | |
815 | bool "Set custom consistent memory pool address" | |
816 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
817 | help | |
818 | This option allows you to set the base virtual address | |
4b3f686d | 819 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
820 | memory is used to make consistent memory allocations. |
821 | ||
822 | config CONSISTENT_START | |
823 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
ccf0d68e | 824 | default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) |
14cf11af PM |
825 | default "0xff100000" if NOT_COHERENT_CACHE |
826 | ||
827 | config CONSISTENT_SIZE_BOOL | |
828 | bool "Set custom consistent memory pool size" | |
829 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
830 | help | |
4b3f686d | 831 | This option allows you to set the size of the |
14cf11af PM |
832 | consistent memory pool. This pool of virtual memory |
833 | is used to make consistent memory allocations. | |
834 | ||
835 | config CONSISTENT_SIZE | |
836 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
837 | default "0x00200000" if NOT_COHERENT_CACHE | |
838 | ||
14cf11af PM |
839 | config PIN_TLB |
840 | bool "Pinned Kernel TLBs (860 ONLY)" | |
841 | depends on ADVANCED_OPTIONS && 8xx | |
842 | endmenu | |
843 | ||
cabb5587 | 844 | if PPC64 |
549e8152 PM |
845 | config RELOCATABLE |
846 | bool "Build a relocatable kernel" | |
847 | help | |
848 | This builds a kernel image that is capable of running anywhere | |
849 | in the RMA (real memory area) at any 16k-aligned base address. | |
850 | The kernel is linked as a position-independent executable (PIE) | |
851 | and contains dynamic relocations which are processed early | |
852 | in the bootup process. | |
853 | ||
854 | One use is for the kexec on panic case where the recovery kernel | |
855 | must live at a different physical address than the primary | |
856 | kernel. | |
857 | ||
37dd2bad KG |
858 | config PAGE_OFFSET |
859 | hex | |
860 | default "0xc000000000000000" | |
cabb5587 SR |
861 | config KERNEL_START |
862 | hex | |
eeb2d218 | 863 | default "0xc000000000000000" |
37dd2bad KG |
864 | config PHYSICAL_START |
865 | hex | |
37dd2bad | 866 | default "0x00000000" |
cabb5587 SR |
867 | endif |
868 | ||
14cf11af PM |
869 | source "net/Kconfig" |
870 | ||
871 | source "drivers/Kconfig" | |
872 | ||
873 | source "fs/Kconfig" | |
874 | ||
875 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
876 | ||
877 | # XXX source "arch/ppc/8260_io/Kconfig" | |
878 | ||
98658538 LY |
879 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
880 | ||
14cf11af PM |
881 | source "lib/Kconfig" |
882 | ||
14cf11af PM |
883 | source "arch/powerpc/Kconfig.debug" |
884 | ||
885 | source "security/Kconfig" | |
886 | ||
887 | config KEYS_COMPAT | |
888 | bool | |
889 | depends on COMPAT && KEYS | |
890 | default y | |
891 | ||
892 | source "crypto/Kconfig" | |
6f668280 DP |
893 | |
894 | config PPC_CLOCK | |
895 | bool | |
896 | default n | |
9483a578 | 897 | select HAVE_CLK |
1088a209 SM |
898 | |
899 | config PPC_LIB_RHEAP | |
900 | bool | |
901 | ||
bbf45ba5 | 902 | source "arch/powerpc/kvm/Kconfig" |