Commit | Line | Data |
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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 | ||
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 | ||
14cf11af PM |
22 | config PPC_MERGE |
23 | def_bool y | |
24 | ||
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 | ||
14cf11af PM |
52 | config RWSEM_GENERIC_SPINLOCK |
53 | bool | |
54 | ||
55 | config RWSEM_XCHGADD_ALGORITHM | |
56 | bool | |
57 | default y | |
58 | ||
95c354fe NP |
59 | config GENERIC_LOCKBREAK |
60 | bool | |
61 | default y | |
62 | depends on SMP && PREEMPT | |
63 | ||
f0d1b0b3 DH |
64 | config ARCH_HAS_ILOG2_U32 |
65 | bool | |
ef55d53c | 66 | default y |
f0d1b0b3 DH |
67 | |
68 | config ARCH_HAS_ILOG2_U64 | |
69 | bool | |
ef55d53c | 70 | default y if 64BIT |
f0d1b0b3 | 71 | |
e779b2f9 AM |
72 | config GENERIC_HWEIGHT |
73 | bool | |
74 | default y | |
75 | ||
14cf11af PM |
76 | config GENERIC_CALIBRATE_DELAY |
77 | bool | |
78 | default y | |
79 | ||
0a9cb46a JM |
80 | config GENERIC_FIND_NEXT_BIT |
81 | bool | |
82 | default y | |
83 | ||
f057eac0 SR |
84 | config ARCH_NO_VIRT_TO_BUS |
85 | def_bool PPC64 | |
86 | ||
14cf11af PM |
87 | config PPC |
88 | bool | |
89 | default y | |
ec7748b5 | 90 | select HAVE_IDE |
42d4b839 | 91 | select HAVE_OPROFILE |
3f550096 | 92 | select HAVE_KPROBES |
14cf11af PM |
93 | |
94 | config EARLY_PRINTK | |
95 | bool | |
51d3082f | 96 | default y |
14cf11af PM |
97 | |
98 | config COMPAT | |
99 | bool | |
100 | default y if PPC64 | |
01e31dba | 101 | select COMPAT_BINFMT_ELF |
14cf11af PM |
102 | |
103 | config SYSVIPC_COMPAT | |
104 | bool | |
105 | depends on COMPAT && SYSVIPC | |
106 | default y | |
107 | ||
108 | # All PPC32s use generic nvram driver through ppc_md | |
109 | config GENERIC_NVRAM | |
110 | bool | |
111 | default y if PPC32 | |
112 | ||
113 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
114 | bool | |
115 | default y | |
116 | ||
117 | config ARCH_MAY_HAVE_PC_FDC | |
118 | bool | |
bed59275 | 119 | default !PPC_PSERIES || PCI |
14cf11af | 120 | |
08264cbc KG |
121 | config PPC_OF |
122 | def_bool y | |
123 | ||
97e873e5 SR |
124 | config OF |
125 | def_bool y | |
126 | ||
08264cbc KG |
127 | config PPC_UDBG_16550 |
128 | bool | |
129 | default n | |
130 | ||
08264cbc KG |
131 | config GENERIC_TBSYNC |
132 | bool | |
133 | default y if PPC32 && SMP | |
134 | default n | |
135 | ||
e65e1fc2 AV |
136 | config AUDIT_ARCH |
137 | bool | |
138 | default y | |
139 | ||
73c9ceab JF |
140 | config GENERIC_BUG |
141 | bool | |
142 | default y | |
143 | depends on BUG | |
144 | ||
b3028878 | 145 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 146 | default y if PMAC_APM_EMU |
b3028878 JB |
147 | bool |
148 | ||
f4fc4a5b KG |
149 | config DEFAULT_UIMAGE |
150 | bool | |
151 | help | |
152 | Used to allow a board to specify it wants a uImage built by default | |
153 | default n | |
154 | ||
b09c1644 SW |
155 | config REDBOOT |
156 | bool | |
157 | ||
801e4062 | 158 | config HIBERNATE_32 |
543b9fd3 | 159 | bool |
801e4062 JB |
160 | depends on (PPC_PMAC && !SMP) || BROKEN |
161 | default y | |
162 | ||
163 | config HIBERNATE_64 | |
164 | bool | |
165 | depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL) | |
166 | default y | |
167 | ||
168 | config ARCH_HIBERNATION_POSSIBLE | |
169 | bool | |
170 | depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32) | |
543b9fd3 JB |
171 | default y |
172 | ||
f4cb5700 JB |
173 | config ARCH_SUSPEND_POSSIBLE |
174 | def_bool y | |
175 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 | |
176 | ||
4c75a6f4 BH |
177 | config PPC_DCR_NATIVE |
178 | bool | |
179 | default n | |
180 | ||
181 | config PPC_DCR_MMIO | |
182 | bool | |
183 | default n | |
184 | ||
185 | config PPC_DCR | |
186 | bool | |
187 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
188 | default y | |
189 | ||
4c9d2800 BH |
190 | config PPC_OF_PLATFORM_PCI |
191 | bool | |
373a6da1 | 192 | depends on PCI |
4c9d2800 BH |
193 | depends on PPC64 # not supported on 32 bits yet |
194 | default n | |
195 | ||
14cf11af PM |
196 | source "init/Kconfig" |
197 | ||
a2d2e1ec | 198 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 199 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 200 | |
14cf11af PM |
201 | menu "Kernel options" |
202 | ||
203 | config HIGHMEM | |
204 | bool "High memory support" | |
205 | depends on PPC32 | |
206 | ||
1ad74998 | 207 | source kernel/time/Kconfig |
14cf11af PM |
208 | source kernel/Kconfig.hz |
209 | source kernel/Kconfig.preempt | |
210 | source "fs/Kconfig.binfmt" | |
211 | ||
212 | # We optimistically allocate largepages from the VM, so make the limit | |
213 | # large enough (16MB). This badly named config option is actually | |
214 | # max order + 1 | |
215 | config FORCE_MAX_ZONEORDER | |
216 | int | |
217 | depends on PPC64 | |
02864867 | 218 | default "9" if PPC_64K_PAGES |
14cf11af PM |
219 | default "13" |
220 | ||
ba72cb8c MG |
221 | config HUGETLB_PAGE_SIZE_VARIABLE |
222 | bool | |
223 | depends on HUGETLB_PAGE | |
224 | default y | |
225 | ||
14cf11af PM |
226 | config MATH_EMULATION |
227 | bool "Math emulation" | |
4d52719a | 228 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
229 | ---help--- |
230 | Some PowerPC chips designed for embedded applications do not have | |
231 | a floating-point unit and therefore do not implement the | |
232 | floating-point instructions in the PowerPC instruction set. If you | |
233 | say Y here, the kernel will include code to emulate a floating-point | |
234 | unit, which will allow programs that use floating-point | |
235 | instructions to run. | |
236 | ||
5dd57a13 SW |
237 | config 8XX_MINIMAL_FPEMU |
238 | bool "Minimal math emulation for 8xx" | |
239 | depends on 8xx && !MATH_EMULATION | |
240 | help | |
241 | Older arch/ppc kernels still emulated a few floating point | |
242 | instructions such as load and store, even when full math | |
243 | emulation is disabled. Say "Y" here if you want to preserve | |
244 | this behavior. | |
245 | ||
246 | It is recommended that you build a soft-float userspace instead. | |
247 | ||
14cf11af | 248 | config IOMMU_VMERGE |
768cc2d3 LV |
249 | bool "Enable IOMMU virtual merging" |
250 | depends on PPC64 | |
251 | default y | |
14cf11af PM |
252 | help |
253 | Cause IO segments sent to a device for DMA to be merged virtually | |
254 | by the IOMMU when they happen to have been allocated contiguously. | |
255 | This doesn't add pressure to the IOMMU allocator. However, some | |
256 | drivers don't support getting large merged segments coming back | |
768cc2d3 LV |
257 | from *_map_sg(). |
258 | ||
259 | Most drivers don't have this problem; it is safe to say Y here. | |
14cf11af | 260 | |
fb3475e9 FT |
261 | config IOMMU_HELPER |
262 | def_bool PPC64 | |
263 | ||
14cf11af PM |
264 | config HOTPLUG_CPU |
265 | bool "Support for enabling/disabling CPUs" | |
266 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
267 | ---help--- | |
268 | Say Y here to be able to disable and re-enable individual | |
269 | CPUs at runtime on SMP machines. | |
270 | ||
271 | Say N if you are unsure. | |
272 | ||
cc57637b YG |
273 | config ARCH_ENABLE_MEMORY_HOTPLUG |
274 | def_bool y | |
275 | ||
a99824f3 BP |
276 | config ARCH_HAS_WALK_MEMORY |
277 | def_bool y | |
278 | ||
1482471d BP |
279 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
280 | def_bool y | |
281 | ||
14cf11af PM |
282 | config KEXEC |
283 | bool "kexec system call (EXPERIMENTAL)" | |
fd4ba7e2 | 284 | depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL |
14cf11af PM |
285 | help |
286 | kexec is a system call that implements the ability to shutdown your | |
287 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 288 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
289 | you can start any kernel with it, not just Linux. |
290 | ||
1f1332f7 | 291 | The name comes from the similarity to the exec system call. |
14cf11af PM |
292 | |
293 | It is an ongoing process to be certain the hardware in a machine | |
294 | is properly shutdown, so do not be surprised if this code does not | |
295 | initially work for you. It may help to enable device hotplugging | |
296 | support. As of this writing the exact hardware interface is | |
297 | strongly in flux, so no good recommendation can be made. | |
298 | ||
e8625d46 | 299 | config CRASH_DUMP |
cd9c99d7 | 300 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
301 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
302 | help | |
303 | Build a kernel suitable for use as a kdump capture kernel. | |
304 | The kernel will be linked at a different address than normal, and | |
305 | so can only be used for Kdump. | |
306 | ||
307 | Don't change this unless you know what you are doing. | |
308 | ||
14cf11af PM |
309 | config PPCBUG_NVRAM |
310 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
311 | default y if PPC_PREP | |
312 | ||
313 | config IRQ_ALL_CPUS | |
314 | bool "Distribute interrupts on all CPUs by default" | |
315 | depends on SMP && !MV64360 | |
316 | help | |
317 | This option gives the kernel permission to distribute IRQs across | |
318 | multiple CPUs. Saying N here will route all IRQs to the first | |
319 | CPU. Generally saying Y is safe, although some problems have been | |
320 | reported with SMP Power Macintoshes with this option enabled. | |
321 | ||
ffa27b6b AW |
322 | config NUMA |
323 | bool "NUMA support" | |
324 | depends on PPC64 | |
325 | default y if SMP && PPC_PSERIES | |
326 | ||
c80d79d7 YG |
327 | config NODES_SHIFT |
328 | int | |
329 | default "4" | |
330 | depends on NEED_MULTIPLE_NODES | |
331 | ||
14cf11af PM |
332 | config ARCH_SELECT_MEMORY_MODEL |
333 | def_bool y | |
334 | depends on PPC64 | |
335 | ||
336 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
337 | def_bool y |
338 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 339 | |
45fb6cea | 340 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 341 | def_bool y |
9100b205 | 342 | depends on PPC64 |
d29eff7b | 343 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 344 | |
45fb6cea | 345 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 346 | def_bool y |
78bde53e | 347 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 348 | |
c67c3cb4 | 349 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 350 | def_bool y |
c67c3cb4 MG |
351 | |
352 | source "mm/Kconfig" | |
14cf11af | 353 | |
7e9191da MK |
354 | config ARCH_MEMORY_PROBE |
355 | def_bool y | |
356 | depends on MEMORY_HOTPLUG | |
357 | ||
75167957 AW |
358 | # Some NUMA nodes have memory ranges that span |
359 | # other nodes. Even though a pfn is valid and | |
360 | # between a node's start and end pfns, it may not | |
361 | # reside on that node. See memmap_init_zone() | |
362 | # for details. | |
363 | config NODES_SPAN_OTHER_NODES | |
364 | def_bool y | |
365 | depends on NEED_MULTIPLE_NODES | |
366 | ||
16c2d476 BH |
367 | config PPC_HAS_HASH_64K |
368 | bool | |
369 | depends on PPC64 | |
370 | default n | |
371 | ||
3c726f8d BH |
372 | config PPC_64K_PAGES |
373 | bool "64k page size" | |
863c84b9 | 374 | depends on PPC64 |
16c2d476 | 375 | select PPC_HAS_HASH_64K |
3c726f8d BH |
376 | help |
377 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
378 | without processor support for 64k pages, the kernel will simulate |
379 | them by loading each individual 4k page on demand transparently, | |
380 | while on hardware with such support, it will be used to map | |
381 | normal application pages. | |
3c726f8d | 382 | |
fa28237c PM |
383 | config PPC_SUBPAGE_PROT |
384 | bool "Support setting protections for 4k subpages" | |
385 | depends on PPC_64K_PAGES | |
386 | help | |
387 | This option adds support for a system call to allow user programs | |
388 | to set access permissions (read/write, readonly, or no access) | |
389 | on the 4k subpages of each 64k page. | |
390 | ||
14cf11af PM |
391 | config SCHED_SMT |
392 | bool "SMT (Hyperthreading) scheduler support" | |
393 | depends on PPC64 && SMP | |
14cf11af PM |
394 | help |
395 | SMT scheduler support improves the CPU scheduler's decision making | |
396 | when dealing with POWER5 cpus at a cost of slightly increased | |
397 | overhead in some places. If unsure say N here. | |
398 | ||
399 | config PROC_DEVICETREE | |
5f296755 PM |
400 | bool "Support for device tree in /proc" |
401 | depends on PROC_FS | |
14cf11af PM |
402 | help |
403 | This option adds a device-tree directory under /proc which contains | |
404 | an image of the device tree that the kernel copies from Open | |
5f296755 | 405 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 406 | |
14cf11af PM |
407 | config CMDLINE_BOOL |
408 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
409 | |
410 | config CMDLINE | |
411 | string "Initial kernel command string" | |
412 | depends on CMDLINE_BOOL | |
413 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
414 | help | |
415 | On some platforms, there is currently no way for the boot loader to | |
416 | pass arguments to the kernel. For these platforms, you can supply | |
417 | some command-line options at build time by entering them here. In | |
418 | most cases you will need to specify the root device here. | |
419 | ||
420 | if !44x || BROKEN | |
b28f5081 JB |
421 | config ARCH_WANTS_FREEZER_CONTROL |
422 | def_bool y | |
423 | depends on ADB_PMU | |
424 | ||
14cf11af PM |
425 | source kernel/power/Kconfig |
426 | endif | |
427 | ||
428 | config SECCOMP | |
429 | bool "Enable seccomp to safely compute untrusted bytecode" | |
430 | depends on PROC_FS | |
431 | default y | |
432 | help | |
433 | This kernel feature is useful for number crunching applications | |
434 | that may need to compute untrusted bytecode during their | |
435 | execution. By using pipes or other transports made available to | |
436 | the process as file descriptors supporting the read/write | |
437 | syscalls, it's possible to isolate those applications in | |
438 | their own address space using seccomp. Once seccomp is | |
439 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
440 | and the task is only allowed to execute a few safe syscalls | |
441 | defined by each seccomp mode. | |
442 | ||
443 | If unsure, say Y. Only embedded should say N here. | |
444 | ||
445 | endmenu | |
446 | ||
447 | config ISA_DMA_API | |
448 | bool | |
373a6da1 | 449 | default !PPC_ISERIES || PCI |
14cf11af PM |
450 | |
451 | menu "Bus options" | |
452 | ||
453 | config ISA | |
454 | bool "Support for ISA-bus hardware" | |
455 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 456 | select PPC_I8259 |
14cf11af PM |
457 | help |
458 | Find out whether you have ISA slots on your motherboard. ISA is the | |
459 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
460 | inside your box. If you have an Apple machine, say N here; if you | |
461 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
462 | you have an embedded board, consult your board documentation. | |
463 | ||
5ac6da66 CL |
464 | config ZONE_DMA |
465 | bool | |
466 | default y | |
467 | ||
14cf11af PM |
468 | config GENERIC_ISA_DMA |
469 | bool | |
470 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
471 | default y | |
472 | ||
25635c71 PM |
473 | config PPC_INDIRECT_PCI |
474 | bool | |
475 | depends on PCI | |
63dafe57 | 476 | default y if 40x || 44x |
25635c71 PM |
477 | default n |
478 | ||
14cf11af PM |
479 | config EISA |
480 | bool | |
481 | ||
482 | config SBUS | |
483 | bool | |
484 | ||
08264cbc KG |
485 | config FSL_SOC |
486 | bool | |
487 | ||
55c44991 RZ |
488 | config FSL_PCI |
489 | bool | |
490 | select PPC_INDIRECT_PCI | |
491 | ||
14cf11af PM |
492 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
493 | config MCA | |
494 | bool | |
495 | ||
496 | config PCI | |
53158620 | 497 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 | 498 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
f9bdedb2 | 499 | || PPC_PS3 || 44x |
e177edcd | 500 | default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \ |
53158620 | 501 | && !PPC_85xx && !PPC_86xx |
f21f49ea | 502 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 503 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 504 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
505 | help |
506 | Find out whether your system includes a PCI bus. PCI is the name of | |
507 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
508 | your box. If you say Y here, the kernel will include drivers and | |
509 | infrastructure code to support PCI bus devices. | |
510 | ||
511 | config PCI_DOMAINS | |
36e23590 MW |
512 | def_bool PCI |
513 | ||
514 | config PCI_SYSCALL | |
515 | def_bool PCI | |
14cf11af | 516 | |
14cf11af PM |
517 | config PCI_QSPAN |
518 | bool "QSpan PCI" | |
519 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 520 | select PPC_I8259 |
14cf11af PM |
521 | help |
522 | Say Y here if you have a system based on a Motorola 8xx-series | |
523 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
524 | ||
525 | config PCI_8260 | |
526 | bool | |
527 | depends on PCI && 8260 | |
25635c71 | 528 | select PPC_INDIRECT_PCI |
14cf11af PM |
529 | default y |
530 | ||
531 | config 8260_PCI9 | |
4a3ecc62 | 532 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 533 | depends on PCI_8260 && !8272 |
14cf11af PM |
534 | default y |
535 | ||
536 | choice | |
4a3ecc62 | 537 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
538 | depends on 8260_PCI9 |
539 | ||
540 | config 8260_PCI9_IDMA1 | |
541 | bool "IDMA1" | |
542 | ||
543 | config 8260_PCI9_IDMA2 | |
544 | bool "IDMA2" | |
545 | ||
546 | config 8260_PCI9_IDMA3 | |
547 | bool "IDMA3" | |
548 | ||
549 | config 8260_PCI9_IDMA4 | |
550 | bool "IDMA4" | |
551 | ||
552 | endchoice | |
553 | ||
bb53bb3d JM |
554 | source "drivers/pci/pcie/Kconfig" |
555 | ||
14cf11af PM |
556 | source "drivers/pci/Kconfig" |
557 | ||
558 | source "drivers/pcmcia/Kconfig" | |
559 | ||
560 | source "drivers/pci/hotplug/Kconfig" | |
561 | ||
562 | endmenu | |
563 | ||
564 | menu "Advanced setup" | |
565 | depends on PPC32 | |
566 | ||
567 | config ADVANCED_OPTIONS | |
568 | bool "Prompt for advanced kernel configuration options" | |
569 | help | |
570 | This option will enable prompting for a variety of advanced kernel | |
571 | configuration options. These options can cause the kernel to not | |
572 | work if they are set incorrectly, but can be used to optimize certain | |
573 | aspects of kernel memory management. | |
574 | ||
575 | Unless you know what you are doing, say N here. | |
576 | ||
577 | comment "Default settings for advanced configuration options are used" | |
578 | depends on !ADVANCED_OPTIONS | |
579 | ||
580 | config HIGHMEM_START_BOOL | |
581 | bool "Set high memory pool address" | |
582 | depends on ADVANCED_OPTIONS && HIGHMEM | |
583 | help | |
584 | This option allows you to set the base address of the kernel virtual | |
585 | area used to map high memory pages. This can be useful in | |
586 | optimizing the layout of kernel virtual memory. | |
587 | ||
588 | Say N here unless you know what you are doing. | |
589 | ||
590 | config HIGHMEM_START | |
591 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
592 | default "0xfe000000" | |
593 | ||
594 | config LOWMEM_SIZE_BOOL | |
595 | bool "Set maximum low memory" | |
596 | depends on ADVANCED_OPTIONS | |
597 | help | |
598 | This option allows you to set the maximum amount of memory which | |
599 | will be used as "low memory", that is, memory which the kernel can | |
600 | access directly, without having to set up a kernel virtual mapping. | |
601 | This can be useful in optimizing the layout of kernel virtual | |
602 | memory. | |
603 | ||
604 | Say N here unless you know what you are doing. | |
605 | ||
606 | config LOWMEM_SIZE | |
607 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
608 | default "0x30000000" | |
609 | ||
610 | config KERNEL_START_BOOL | |
611 | bool "Set custom kernel base address" | |
612 | depends on ADVANCED_OPTIONS | |
613 | help | |
614 | This option allows you to set the kernel virtual address at which | |
615 | the kernel will map low memory (the kernel image will be linked at | |
616 | this address). This can be useful in optimizing the virtual memory | |
617 | layout of the system. | |
618 | ||
619 | Say N here unless you know what you are doing. | |
620 | ||
621 | config KERNEL_START | |
622 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
623 | default "0xc0000000" | |
624 | ||
625 | config TASK_SIZE_BOOL | |
626 | bool "Set custom user task size" | |
627 | depends on ADVANCED_OPTIONS | |
628 | help | |
629 | This option allows you to set the amount of virtual address space | |
630 | allocated to user tasks. This can be useful in optimizing the | |
631 | virtual memory layout of the system. | |
632 | ||
633 | Say N here unless you know what you are doing. | |
634 | ||
635 | config TASK_SIZE | |
636 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
637 | default "0x80000000" if PPC_PREP || PPC_8xx |
638 | default "0xc0000000" | |
14cf11af PM |
639 | |
640 | config CONSISTENT_START_BOOL | |
641 | bool "Set custom consistent memory pool address" | |
642 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
643 | help | |
644 | This option allows you to set the base virtual address | |
4b3f686d | 645 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
646 | memory is used to make consistent memory allocations. |
647 | ||
648 | config CONSISTENT_START | |
649 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
ccf0d68e | 650 | default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) |
14cf11af PM |
651 | default "0xff100000" if NOT_COHERENT_CACHE |
652 | ||
653 | config CONSISTENT_SIZE_BOOL | |
654 | bool "Set custom consistent memory pool size" | |
655 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
656 | help | |
4b3f686d | 657 | This option allows you to set the size of the |
14cf11af PM |
658 | consistent memory pool. This pool of virtual memory |
659 | is used to make consistent memory allocations. | |
660 | ||
661 | config CONSISTENT_SIZE | |
662 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
663 | default "0x00200000" if NOT_COHERENT_CACHE | |
664 | ||
665 | config BOOT_LOAD_BOOL | |
666 | bool "Set the boot link/load address" | |
667 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
668 | help | |
669 | This option allows you to set the initial load address of the zImage | |
670 | or zImage.initrd file. This can be useful if you are on a board | |
671 | which has a small amount of memory. | |
672 | ||
673 | Say N here unless you know what you are doing. | |
674 | ||
675 | config BOOT_LOAD | |
676 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
677 | default "0x00400000" if 40x || 8xx || 8260 | |
678 | default "0x01000000" if 44x | |
679 | default "0x00800000" | |
680 | ||
681 | config PIN_TLB | |
682 | bool "Pinned Kernel TLBs (860 ONLY)" | |
683 | depends on ADVANCED_OPTIONS && 8xx | |
684 | endmenu | |
685 | ||
cabb5587 SR |
686 | if PPC64 |
687 | config KERNEL_START | |
688 | hex | |
eeb2d218 | 689 | default "0xc000000000000000" |
cabb5587 SR |
690 | endif |
691 | ||
14cf11af PM |
692 | source "net/Kconfig" |
693 | ||
694 | source "drivers/Kconfig" | |
695 | ||
696 | source "fs/Kconfig" | |
697 | ||
698 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
699 | ||
700 | # XXX source "arch/ppc/8260_io/Kconfig" | |
701 | ||
98658538 LY |
702 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
703 | ||
14cf11af PM |
704 | source "lib/Kconfig" |
705 | ||
14cf11af PM |
706 | source "arch/powerpc/Kconfig.debug" |
707 | ||
708 | source "security/Kconfig" | |
709 | ||
710 | config KEYS_COMPAT | |
711 | bool | |
712 | depends on COMPAT && KEYS | |
713 | default y | |
714 | ||
715 | source "crypto/Kconfig" | |
6f668280 DP |
716 | |
717 | config PPC_CLOCK | |
718 | bool | |
719 | default n | |
1088a209 SM |
720 | |
721 | config PPC_LIB_RHEAP | |
722 | bool | |
723 |