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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 | ||
0d7012a9 IM |
45 | config IRQ_PER_CPU |
46 | bool | |
47 | default y | |
48 | ||
14cf11af PM |
49 | config RWSEM_GENERIC_SPINLOCK |
50 | bool | |
51 | ||
52 | config RWSEM_XCHGADD_ALGORITHM | |
53 | bool | |
54 | default y | |
55 | ||
95c354fe NP |
56 | config GENERIC_LOCKBREAK |
57 | bool | |
58 | default y | |
59 | depends on SMP && PREEMPT | |
60 | ||
f0d1b0b3 DH |
61 | config ARCH_HAS_ILOG2_U32 |
62 | bool | |
ef55d53c | 63 | default y |
f0d1b0b3 DH |
64 | |
65 | config ARCH_HAS_ILOG2_U64 | |
66 | bool | |
ef55d53c | 67 | default y if 64BIT |
f0d1b0b3 | 68 | |
e779b2f9 AM |
69 | config GENERIC_HWEIGHT |
70 | bool | |
71 | default y | |
72 | ||
14cf11af PM |
73 | config GENERIC_CALIBRATE_DELAY |
74 | bool | |
75 | default y | |
76 | ||
0a9cb46a JM |
77 | config GENERIC_FIND_NEXT_BIT |
78 | bool | |
79 | default y | |
80 | ||
f057eac0 SR |
81 | config ARCH_NO_VIRT_TO_BUS |
82 | def_bool PPC64 | |
83 | ||
14cf11af PM |
84 | config PPC |
85 | bool | |
86 | default y | |
87 | ||
88 | config EARLY_PRINTK | |
89 | bool | |
51d3082f | 90 | default y |
14cf11af PM |
91 | |
92 | config COMPAT | |
93 | bool | |
94 | default y if PPC64 | |
95 | ||
96 | config SYSVIPC_COMPAT | |
97 | bool | |
98 | depends on COMPAT && SYSVIPC | |
99 | default y | |
100 | ||
101 | # All PPC32s use generic nvram driver through ppc_md | |
102 | config GENERIC_NVRAM | |
103 | bool | |
104 | default y if PPC32 | |
105 | ||
106 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
107 | bool | |
108 | default y | |
109 | ||
110 | config ARCH_MAY_HAVE_PC_FDC | |
111 | bool | |
bed59275 | 112 | default !PPC_PSERIES || PCI |
14cf11af | 113 | |
08264cbc KG |
114 | config PPC_OF |
115 | def_bool y | |
116 | ||
97e873e5 SR |
117 | config OF |
118 | def_bool y | |
119 | ||
08264cbc KG |
120 | config PPC_UDBG_16550 |
121 | bool | |
122 | default n | |
123 | ||
08264cbc KG |
124 | config GENERIC_TBSYNC |
125 | bool | |
126 | default y if PPC32 && SMP | |
127 | default n | |
128 | ||
e65e1fc2 AV |
129 | config AUDIT_ARCH |
130 | bool | |
131 | default y | |
132 | ||
73c9ceab JF |
133 | config GENERIC_BUG |
134 | bool | |
135 | default y | |
136 | depends on BUG | |
137 | ||
b3028878 | 138 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 139 | default y if PMAC_APM_EMU |
b3028878 JB |
140 | bool |
141 | ||
f4fc4a5b KG |
142 | config DEFAULT_UIMAGE |
143 | bool | |
144 | help | |
145 | Used to allow a board to specify it wants a uImage built by default | |
146 | default n | |
147 | ||
543b9fd3 JB |
148 | config PPC64_SWSUSP |
149 | bool | |
150 | depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) | |
151 | default y | |
152 | ||
4c75a6f4 BH |
153 | config PPC_DCR_NATIVE |
154 | bool | |
155 | default n | |
156 | ||
157 | config PPC_DCR_MMIO | |
158 | bool | |
159 | default n | |
160 | ||
161 | config PPC_DCR | |
162 | bool | |
163 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
164 | default y | |
165 | ||
4c9d2800 BH |
166 | config PPC_OF_PLATFORM_PCI |
167 | bool | |
168 | depends on PPC64 # not supported on 32 bits yet | |
169 | default n | |
170 | ||
14cf11af PM |
171 | source "init/Kconfig" |
172 | ||
4330f5da | 173 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 174 | |
14cf11af PM |
175 | menu "Kernel options" |
176 | ||
177 | config HIGHMEM | |
178 | bool "High memory support" | |
179 | depends on PPC32 | |
180 | ||
1ad74998 | 181 | source kernel/time/Kconfig |
14cf11af PM |
182 | source kernel/Kconfig.hz |
183 | source kernel/Kconfig.preempt | |
184 | source "fs/Kconfig.binfmt" | |
185 | ||
186 | # We optimistically allocate largepages from the VM, so make the limit | |
187 | # large enough (16MB). This badly named config option is actually | |
188 | # max order + 1 | |
189 | config FORCE_MAX_ZONEORDER | |
190 | int | |
191 | depends on PPC64 | |
02864867 | 192 | default "9" if PPC_64K_PAGES |
14cf11af PM |
193 | default "13" |
194 | ||
ba72cb8c MG |
195 | config HUGETLB_PAGE_SIZE_VARIABLE |
196 | bool | |
197 | depends on HUGETLB_PAGE | |
198 | default y | |
199 | ||
14cf11af PM |
200 | config MATH_EMULATION |
201 | bool "Math emulation" | |
4d52719a | 202 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
203 | ---help--- |
204 | Some PowerPC chips designed for embedded applications do not have | |
205 | a floating-point unit and therefore do not implement the | |
206 | floating-point instructions in the PowerPC instruction set. If you | |
207 | say Y here, the kernel will include code to emulate a floating-point | |
208 | unit, which will allow programs that use floating-point | |
209 | instructions to run. | |
210 | ||
5dd57a13 SW |
211 | config 8XX_MINIMAL_FPEMU |
212 | bool "Minimal math emulation for 8xx" | |
213 | depends on 8xx && !MATH_EMULATION | |
214 | help | |
215 | Older arch/ppc kernels still emulated a few floating point | |
216 | instructions such as load and store, even when full math | |
217 | emulation is disabled. Say "Y" here if you want to preserve | |
218 | this behavior. | |
219 | ||
220 | It is recommended that you build a soft-float userspace instead. | |
221 | ||
14cf11af | 222 | config IOMMU_VMERGE |
768cc2d3 LV |
223 | bool "Enable IOMMU virtual merging" |
224 | depends on PPC64 | |
225 | default y | |
14cf11af PM |
226 | help |
227 | Cause IO segments sent to a device for DMA to be merged virtually | |
228 | by the IOMMU when they happen to have been allocated contiguously. | |
229 | This doesn't add pressure to the IOMMU allocator. However, some | |
230 | drivers don't support getting large merged segments coming back | |
768cc2d3 LV |
231 | from *_map_sg(). |
232 | ||
233 | Most drivers don't have this problem; it is safe to say Y here. | |
14cf11af PM |
234 | |
235 | config HOTPLUG_CPU | |
236 | bool "Support for enabling/disabling CPUs" | |
237 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
238 | ---help--- | |
239 | Say Y here to be able to disable and re-enable individual | |
240 | CPUs at runtime on SMP machines. | |
241 | ||
242 | Say N if you are unsure. | |
243 | ||
cc57637b YG |
244 | config ARCH_ENABLE_MEMORY_HOTPLUG |
245 | def_bool y | |
246 | ||
14cf11af PM |
247 | config KEXEC |
248 | bool "kexec system call (EXPERIMENTAL)" | |
fd4ba7e2 | 249 | depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL |
14cf11af PM |
250 | help |
251 | kexec is a system call that implements the ability to shutdown your | |
252 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 253 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
254 | you can start any kernel with it, not just Linux. |
255 | ||
1f1332f7 | 256 | The name comes from the similarity to the exec system call. |
14cf11af PM |
257 | |
258 | It is an ongoing process to be certain the hardware in a machine | |
259 | is properly shutdown, so do not be surprised if this code does not | |
260 | initially work for you. It may help to enable device hotplugging | |
261 | support. As of this writing the exact hardware interface is | |
262 | strongly in flux, so no good recommendation can be made. | |
263 | ||
e8625d46 | 264 | config CRASH_DUMP |
cd9c99d7 | 265 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
266 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
267 | help | |
268 | Build a kernel suitable for use as a kdump capture kernel. | |
269 | The kernel will be linked at a different address than normal, and | |
270 | so can only be used for Kdump. | |
271 | ||
272 | Don't change this unless you know what you are doing. | |
273 | ||
14cf11af PM |
274 | config PPCBUG_NVRAM |
275 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
276 | default y if PPC_PREP | |
277 | ||
278 | config IRQ_ALL_CPUS | |
279 | bool "Distribute interrupts on all CPUs by default" | |
280 | depends on SMP && !MV64360 | |
281 | help | |
282 | This option gives the kernel permission to distribute IRQs across | |
283 | multiple CPUs. Saying N here will route all IRQs to the first | |
284 | CPU. Generally saying Y is safe, although some problems have been | |
285 | reported with SMP Power Macintoshes with this option enabled. | |
286 | ||
ffa27b6b AW |
287 | config NUMA |
288 | bool "NUMA support" | |
289 | depends on PPC64 | |
290 | default y if SMP && PPC_PSERIES | |
291 | ||
c80d79d7 YG |
292 | config NODES_SHIFT |
293 | int | |
294 | default "4" | |
295 | depends on NEED_MULTIPLE_NODES | |
296 | ||
14cf11af PM |
297 | config ARCH_SELECT_MEMORY_MODEL |
298 | def_bool y | |
299 | depends on PPC64 | |
300 | ||
301 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
302 | def_bool y |
303 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 304 | |
45fb6cea | 305 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 306 | def_bool y |
9100b205 | 307 | depends on PPC64 |
d29eff7b | 308 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 309 | |
45fb6cea | 310 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 311 | def_bool y |
78bde53e | 312 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 313 | |
c67c3cb4 | 314 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 315 | def_bool y |
c67c3cb4 MG |
316 | |
317 | source "mm/Kconfig" | |
14cf11af | 318 | |
7e9191da MK |
319 | config ARCH_MEMORY_PROBE |
320 | def_bool y | |
321 | depends on MEMORY_HOTPLUG | |
322 | ||
75167957 AW |
323 | # Some NUMA nodes have memory ranges that span |
324 | # other nodes. Even though a pfn is valid and | |
325 | # between a node's start and end pfns, it may not | |
326 | # reside on that node. See memmap_init_zone() | |
327 | # for details. | |
328 | config NODES_SPAN_OTHER_NODES | |
329 | def_bool y | |
330 | depends on NEED_MULTIPLE_NODES | |
331 | ||
16c2d476 BH |
332 | config PPC_HAS_HASH_64K |
333 | bool | |
334 | depends on PPC64 | |
335 | default n | |
336 | ||
3c726f8d BH |
337 | config PPC_64K_PAGES |
338 | bool "64k page size" | |
863c84b9 | 339 | depends on PPC64 |
16c2d476 | 340 | select PPC_HAS_HASH_64K |
3c726f8d BH |
341 | help |
342 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
343 | without processor support for 64k pages, the kernel will simulate |
344 | them by loading each individual 4k page on demand transparently, | |
345 | while on hardware with such support, it will be used to map | |
346 | normal application pages. | |
3c726f8d | 347 | |
14cf11af PM |
348 | config SCHED_SMT |
349 | bool "SMT (Hyperthreading) scheduler support" | |
350 | depends on PPC64 && SMP | |
14cf11af PM |
351 | help |
352 | SMT scheduler support improves the CPU scheduler's decision making | |
353 | when dealing with POWER5 cpus at a cost of slightly increased | |
354 | overhead in some places. If unsure say N here. | |
355 | ||
356 | config PROC_DEVICETREE | |
5f296755 PM |
357 | bool "Support for device tree in /proc" |
358 | depends on PROC_FS | |
14cf11af PM |
359 | help |
360 | This option adds a device-tree directory under /proc which contains | |
361 | an image of the device tree that the kernel copies from Open | |
5f296755 | 362 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 363 | |
14cf11af PM |
364 | config CMDLINE_BOOL |
365 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
366 | |
367 | config CMDLINE | |
368 | string "Initial kernel command string" | |
369 | depends on CMDLINE_BOOL | |
370 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
371 | help | |
372 | On some platforms, there is currently no way for the boot loader to | |
373 | pass arguments to the kernel. For these platforms, you can supply | |
374 | some command-line options at build time by entering them here. In | |
375 | most cases you will need to specify the root device here. | |
376 | ||
377 | if !44x || BROKEN | |
378 | source kernel/power/Kconfig | |
379 | endif | |
380 | ||
381 | config SECCOMP | |
382 | bool "Enable seccomp to safely compute untrusted bytecode" | |
383 | depends on PROC_FS | |
384 | default y | |
385 | help | |
386 | This kernel feature is useful for number crunching applications | |
387 | that may need to compute untrusted bytecode during their | |
388 | execution. By using pipes or other transports made available to | |
389 | the process as file descriptors supporting the read/write | |
390 | syscalls, it's possible to isolate those applications in | |
391 | their own address space using seccomp. Once seccomp is | |
392 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
393 | and the task is only allowed to execute a few safe syscalls | |
394 | defined by each seccomp mode. | |
395 | ||
396 | If unsure, say Y. Only embedded should say N here. | |
397 | ||
270429ba SW |
398 | config WANT_DEVICE_TREE |
399 | bool | |
400 | default n | |
401 | ||
402 | config DEVICE_TREE | |
403 | string "Static device tree source file" | |
404 | depends on WANT_DEVICE_TREE | |
405 | help | |
406 | This specifies the device tree source (.dts) file to be | |
407 | compiled and included when building the bootwrapper. If a | |
408 | relative filename is given, then it will be relative to | |
409 | arch/powerpc/boot/dts. If you are not using the bootwrapper, | |
410 | or do not need to build a dts into the bootwrapper, this | |
411 | field is ignored. | |
412 | ||
413 | For example, this is required when building a cuImage target | |
414 | for an older U-Boot, which cannot pass a device tree itself. | |
415 | Such a kernel will not work with a newer U-Boot that tries to | |
416 | pass a device tree (unless you tell it not to). If your U-Boot | |
417 | does not mention a device tree in "help bootm", then use the | |
418 | cuImage target and specify a device tree here. Otherwise, use | |
419 | the uImage target and leave this field blank. | |
420 | ||
14cf11af PM |
421 | endmenu |
422 | ||
423 | config ISA_DMA_API | |
424 | bool | |
425 | default y | |
426 | ||
427 | menu "Bus options" | |
428 | ||
429 | config ISA | |
430 | bool "Support for ISA-bus hardware" | |
431 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 432 | select PPC_I8259 |
14cf11af PM |
433 | help |
434 | Find out whether you have ISA slots on your motherboard. ISA is the | |
435 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
436 | inside your box. If you have an Apple machine, say N here; if you | |
437 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
438 | you have an embedded board, consult your board documentation. | |
439 | ||
5ac6da66 CL |
440 | config ZONE_DMA |
441 | bool | |
442 | default y | |
443 | ||
14cf11af PM |
444 | config GENERIC_ISA_DMA |
445 | bool | |
446 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
447 | default y | |
448 | ||
25635c71 PM |
449 | config PPC_INDIRECT_PCI |
450 | bool | |
451 | depends on PCI | |
63dafe57 | 452 | default y if 40x || 44x |
25635c71 PM |
453 | default n |
454 | ||
14cf11af PM |
455 | config EISA |
456 | bool | |
457 | ||
458 | config SBUS | |
459 | bool | |
460 | ||
08264cbc KG |
461 | config FSL_SOC |
462 | bool | |
463 | ||
55c44991 RZ |
464 | config FSL_PCI |
465 | bool | |
466 | select PPC_INDIRECT_PCI | |
467 | ||
14cf11af PM |
468 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
469 | config MCA | |
470 | bool | |
471 | ||
472 | config PCI | |
53158620 | 473 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 | 474 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
d3c7ffab | 475 | || PPC_PS3 |
f21f49ea | 476 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ |
53158620 | 477 | && !PPC_85xx && !PPC_86xx |
f21f49ea | 478 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 479 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 480 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
481 | help |
482 | Find out whether your system includes a PCI bus. PCI is the name of | |
483 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
484 | your box. If you say Y here, the kernel will include drivers and | |
485 | infrastructure code to support PCI bus devices. | |
486 | ||
487 | config PCI_DOMAINS | |
36e23590 MW |
488 | def_bool PCI |
489 | ||
490 | config PCI_SYSCALL | |
491 | def_bool PCI | |
14cf11af | 492 | |
14cf11af PM |
493 | config PCI_QSPAN |
494 | bool "QSpan PCI" | |
495 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 496 | select PPC_I8259 |
14cf11af PM |
497 | help |
498 | Say Y here if you have a system based on a Motorola 8xx-series | |
499 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
500 | ||
501 | config PCI_8260 | |
502 | bool | |
503 | depends on PCI && 8260 | |
25635c71 | 504 | select PPC_INDIRECT_PCI |
14cf11af PM |
505 | default y |
506 | ||
507 | config 8260_PCI9 | |
4a3ecc62 | 508 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 509 | depends on PCI_8260 && !8272 |
14cf11af PM |
510 | default y |
511 | ||
512 | choice | |
4a3ecc62 | 513 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
514 | depends on 8260_PCI9 |
515 | ||
516 | config 8260_PCI9_IDMA1 | |
517 | bool "IDMA1" | |
518 | ||
519 | config 8260_PCI9_IDMA2 | |
520 | bool "IDMA2" | |
521 | ||
522 | config 8260_PCI9_IDMA3 | |
523 | bool "IDMA3" | |
524 | ||
525 | config 8260_PCI9_IDMA4 | |
526 | bool "IDMA4" | |
527 | ||
528 | endchoice | |
529 | ||
bb53bb3d JM |
530 | source "drivers/pci/pcie/Kconfig" |
531 | ||
14cf11af PM |
532 | source "drivers/pci/Kconfig" |
533 | ||
534 | source "drivers/pcmcia/Kconfig" | |
535 | ||
536 | source "drivers/pci/hotplug/Kconfig" | |
537 | ||
538 | endmenu | |
539 | ||
540 | menu "Advanced setup" | |
541 | depends on PPC32 | |
542 | ||
543 | config ADVANCED_OPTIONS | |
544 | bool "Prompt for advanced kernel configuration options" | |
545 | help | |
546 | This option will enable prompting for a variety of advanced kernel | |
547 | configuration options. These options can cause the kernel to not | |
548 | work if they are set incorrectly, but can be used to optimize certain | |
549 | aspects of kernel memory management. | |
550 | ||
551 | Unless you know what you are doing, say N here. | |
552 | ||
553 | comment "Default settings for advanced configuration options are used" | |
554 | depends on !ADVANCED_OPTIONS | |
555 | ||
556 | config HIGHMEM_START_BOOL | |
557 | bool "Set high memory pool address" | |
558 | depends on ADVANCED_OPTIONS && HIGHMEM | |
559 | help | |
560 | This option allows you to set the base address of the kernel virtual | |
561 | area used to map high memory pages. This can be useful in | |
562 | optimizing the layout of kernel virtual memory. | |
563 | ||
564 | Say N here unless you know what you are doing. | |
565 | ||
566 | config HIGHMEM_START | |
567 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
568 | default "0xfe000000" | |
569 | ||
570 | config LOWMEM_SIZE_BOOL | |
571 | bool "Set maximum low memory" | |
572 | depends on ADVANCED_OPTIONS | |
573 | help | |
574 | This option allows you to set the maximum amount of memory which | |
575 | will be used as "low memory", that is, memory which the kernel can | |
576 | access directly, without having to set up a kernel virtual mapping. | |
577 | This can be useful in optimizing the layout of kernel virtual | |
578 | memory. | |
579 | ||
580 | Say N here unless you know what you are doing. | |
581 | ||
582 | config LOWMEM_SIZE | |
583 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
584 | default "0x30000000" | |
585 | ||
586 | config KERNEL_START_BOOL | |
587 | bool "Set custom kernel base address" | |
588 | depends on ADVANCED_OPTIONS | |
589 | help | |
590 | This option allows you to set the kernel virtual address at which | |
591 | the kernel will map low memory (the kernel image will be linked at | |
592 | this address). This can be useful in optimizing the virtual memory | |
593 | layout of the system. | |
594 | ||
595 | Say N here unless you know what you are doing. | |
596 | ||
597 | config KERNEL_START | |
598 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
599 | default "0xc0000000" | |
600 | ||
601 | config TASK_SIZE_BOOL | |
602 | bool "Set custom user task size" | |
603 | depends on ADVANCED_OPTIONS | |
604 | help | |
605 | This option allows you to set the amount of virtual address space | |
606 | allocated to user tasks. This can be useful in optimizing the | |
607 | virtual memory layout of the system. | |
608 | ||
609 | Say N here unless you know what you are doing. | |
610 | ||
611 | config TASK_SIZE | |
612 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
613 | default "0x80000000" if PPC_PREP || PPC_8xx |
614 | default "0xc0000000" | |
14cf11af PM |
615 | |
616 | config CONSISTENT_START_BOOL | |
617 | bool "Set custom consistent memory pool address" | |
618 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
619 | help | |
620 | This option allows you to set the base virtual address | |
4b3f686d | 621 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
622 | memory is used to make consistent memory allocations. |
623 | ||
624 | config CONSISTENT_START | |
625 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
ccf0d68e | 626 | default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) |
14cf11af PM |
627 | default "0xff100000" if NOT_COHERENT_CACHE |
628 | ||
629 | config CONSISTENT_SIZE_BOOL | |
630 | bool "Set custom consistent memory pool size" | |
631 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
632 | help | |
4b3f686d | 633 | This option allows you to set the size of the |
14cf11af PM |
634 | consistent memory pool. This pool of virtual memory |
635 | is used to make consistent memory allocations. | |
636 | ||
637 | config CONSISTENT_SIZE | |
638 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
639 | default "0x00200000" if NOT_COHERENT_CACHE | |
640 | ||
641 | config BOOT_LOAD_BOOL | |
642 | bool "Set the boot link/load address" | |
643 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
644 | help | |
645 | This option allows you to set the initial load address of the zImage | |
646 | or zImage.initrd file. This can be useful if you are on a board | |
647 | which has a small amount of memory. | |
648 | ||
649 | Say N here unless you know what you are doing. | |
650 | ||
651 | config BOOT_LOAD | |
652 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
653 | default "0x00400000" if 40x || 8xx || 8260 | |
654 | default "0x01000000" if 44x | |
655 | default "0x00800000" | |
656 | ||
657 | config PIN_TLB | |
658 | bool "Pinned Kernel TLBs (860 ONLY)" | |
659 | depends on ADVANCED_OPTIONS && 8xx | |
660 | endmenu | |
661 | ||
cabb5587 SR |
662 | if PPC64 |
663 | config KERNEL_START | |
664 | hex | |
eeb2d218 | 665 | default "0xc000000000000000" |
cabb5587 SR |
666 | endif |
667 | ||
14cf11af PM |
668 | source "net/Kconfig" |
669 | ||
670 | source "drivers/Kconfig" | |
671 | ||
672 | source "fs/Kconfig" | |
673 | ||
674 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
675 | ||
676 | # XXX source "arch/ppc/8260_io/Kconfig" | |
677 | ||
98658538 LY |
678 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
679 | ||
14cf11af PM |
680 | source "lib/Kconfig" |
681 | ||
09cadedb | 682 | source "kernel/Kconfig.instrumentation" |
cd6b0762 | 683 | |
14cf11af PM |
684 | source "arch/powerpc/Kconfig.debug" |
685 | ||
686 | source "security/Kconfig" | |
687 | ||
688 | config KEYS_COMPAT | |
689 | bool | |
690 | depends on COMPAT && KEYS | |
691 | default y | |
692 | ||
693 | source "crypto/Kconfig" | |
6f668280 DP |
694 | |
695 | config PPC_CLOCK | |
696 | bool | |
697 | default n | |
1088a209 SM |
698 | |
699 | config PPC_LIB_RHEAP | |
700 | bool | |
701 |