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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 | |
90 | ||
91 | config EARLY_PRINTK | |
92 | bool | |
51d3082f | 93 | default y |
14cf11af PM |
94 | |
95 | config COMPAT | |
96 | bool | |
97 | default y if PPC64 | |
98 | ||
99 | config SYSVIPC_COMPAT | |
100 | bool | |
101 | depends on COMPAT && SYSVIPC | |
102 | default y | |
103 | ||
104 | # All PPC32s use generic nvram driver through ppc_md | |
105 | config GENERIC_NVRAM | |
106 | bool | |
107 | default y if PPC32 | |
108 | ||
109 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
110 | bool | |
111 | default y | |
112 | ||
113 | config ARCH_MAY_HAVE_PC_FDC | |
114 | bool | |
bed59275 | 115 | default !PPC_PSERIES || PCI |
14cf11af | 116 | |
08264cbc KG |
117 | config PPC_OF |
118 | def_bool y | |
119 | ||
97e873e5 SR |
120 | config OF |
121 | def_bool y | |
122 | ||
08264cbc KG |
123 | config PPC_UDBG_16550 |
124 | bool | |
125 | default n | |
126 | ||
08264cbc KG |
127 | config GENERIC_TBSYNC |
128 | bool | |
129 | default y if PPC32 && SMP | |
130 | default n | |
131 | ||
e65e1fc2 AV |
132 | config AUDIT_ARCH |
133 | bool | |
134 | default y | |
135 | ||
73c9ceab JF |
136 | config GENERIC_BUG |
137 | bool | |
138 | default y | |
139 | depends on BUG | |
140 | ||
b3028878 | 141 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 142 | default y if PMAC_APM_EMU |
b3028878 JB |
143 | bool |
144 | ||
f4fc4a5b KG |
145 | config DEFAULT_UIMAGE |
146 | bool | |
147 | help | |
148 | Used to allow a board to specify it wants a uImage built by default | |
149 | default n | |
150 | ||
b09c1644 SW |
151 | config REDBOOT |
152 | bool | |
153 | ||
543b9fd3 JB |
154 | config PPC64_SWSUSP |
155 | bool | |
156 | depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL)) | |
157 | default y | |
158 | ||
4c75a6f4 BH |
159 | config PPC_DCR_NATIVE |
160 | bool | |
161 | default n | |
162 | ||
163 | config PPC_DCR_MMIO | |
164 | bool | |
165 | default n | |
166 | ||
167 | config PPC_DCR | |
168 | bool | |
169 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
170 | default y | |
171 | ||
4c9d2800 BH |
172 | config PPC_OF_PLATFORM_PCI |
173 | bool | |
373a6da1 | 174 | depends on PCI |
4c9d2800 BH |
175 | depends on PPC64 # not supported on 32 bits yet |
176 | default n | |
177 | ||
14cf11af PM |
178 | source "init/Kconfig" |
179 | ||
a2d2e1ec | 180 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 181 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 182 | |
14cf11af PM |
183 | menu "Kernel options" |
184 | ||
185 | config HIGHMEM | |
186 | bool "High memory support" | |
187 | depends on PPC32 | |
188 | ||
1ad74998 | 189 | source kernel/time/Kconfig |
14cf11af PM |
190 | source kernel/Kconfig.hz |
191 | source kernel/Kconfig.preempt | |
192 | source "fs/Kconfig.binfmt" | |
193 | ||
194 | # We optimistically allocate largepages from the VM, so make the limit | |
195 | # large enough (16MB). This badly named config option is actually | |
196 | # max order + 1 | |
197 | config FORCE_MAX_ZONEORDER | |
198 | int | |
199 | depends on PPC64 | |
02864867 | 200 | default "9" if PPC_64K_PAGES |
14cf11af PM |
201 | default "13" |
202 | ||
ba72cb8c MG |
203 | config HUGETLB_PAGE_SIZE_VARIABLE |
204 | bool | |
205 | depends on HUGETLB_PAGE | |
206 | default y | |
207 | ||
14cf11af PM |
208 | config MATH_EMULATION |
209 | bool "Math emulation" | |
4d52719a | 210 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
14cf11af PM |
211 | ---help--- |
212 | Some PowerPC chips designed for embedded applications do not have | |
213 | a floating-point unit and therefore do not implement the | |
214 | floating-point instructions in the PowerPC instruction set. If you | |
215 | say Y here, the kernel will include code to emulate a floating-point | |
216 | unit, which will allow programs that use floating-point | |
217 | instructions to run. | |
218 | ||
5dd57a13 SW |
219 | config 8XX_MINIMAL_FPEMU |
220 | bool "Minimal math emulation for 8xx" | |
221 | depends on 8xx && !MATH_EMULATION | |
222 | help | |
223 | Older arch/ppc kernels still emulated a few floating point | |
224 | instructions such as load and store, even when full math | |
225 | emulation is disabled. Say "Y" here if you want to preserve | |
226 | this behavior. | |
227 | ||
228 | It is recommended that you build a soft-float userspace instead. | |
229 | ||
14cf11af | 230 | config IOMMU_VMERGE |
768cc2d3 LV |
231 | bool "Enable IOMMU virtual merging" |
232 | depends on PPC64 | |
233 | default y | |
14cf11af PM |
234 | help |
235 | Cause IO segments sent to a device for DMA to be merged virtually | |
236 | by the IOMMU when they happen to have been allocated contiguously. | |
237 | This doesn't add pressure to the IOMMU allocator. However, some | |
238 | drivers don't support getting large merged segments coming back | |
768cc2d3 LV |
239 | from *_map_sg(). |
240 | ||
241 | Most drivers don't have this problem; it is safe to say Y here. | |
14cf11af PM |
242 | |
243 | config HOTPLUG_CPU | |
244 | bool "Support for enabling/disabling CPUs" | |
245 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
246 | ---help--- | |
247 | Say Y here to be able to disable and re-enable individual | |
248 | CPUs at runtime on SMP machines. | |
249 | ||
250 | Say N if you are unsure. | |
251 | ||
cc57637b YG |
252 | config ARCH_ENABLE_MEMORY_HOTPLUG |
253 | def_bool y | |
254 | ||
14cf11af PM |
255 | config KEXEC |
256 | bool "kexec system call (EXPERIMENTAL)" | |
fd4ba7e2 | 257 | depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL |
14cf11af PM |
258 | help |
259 | kexec is a system call that implements the ability to shutdown your | |
260 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 261 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
262 | you can start any kernel with it, not just Linux. |
263 | ||
1f1332f7 | 264 | The name comes from the similarity to the exec system call. |
14cf11af PM |
265 | |
266 | It is an ongoing process to be certain the hardware in a machine | |
267 | is properly shutdown, so do not be surprised if this code does not | |
268 | initially work for you. It may help to enable device hotplugging | |
269 | support. As of this writing the exact hardware interface is | |
270 | strongly in flux, so no good recommendation can be made. | |
271 | ||
e8625d46 | 272 | config CRASH_DUMP |
cd9c99d7 | 273 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
274 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
275 | help | |
276 | Build a kernel suitable for use as a kdump capture kernel. | |
277 | The kernel will be linked at a different address than normal, and | |
278 | so can only be used for Kdump. | |
279 | ||
280 | Don't change this unless you know what you are doing. | |
281 | ||
14cf11af PM |
282 | config PPCBUG_NVRAM |
283 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
284 | default y if PPC_PREP | |
285 | ||
286 | config IRQ_ALL_CPUS | |
287 | bool "Distribute interrupts on all CPUs by default" | |
288 | depends on SMP && !MV64360 | |
289 | help | |
290 | This option gives the kernel permission to distribute IRQs across | |
291 | multiple CPUs. Saying N here will route all IRQs to the first | |
292 | CPU. Generally saying Y is safe, although some problems have been | |
293 | reported with SMP Power Macintoshes with this option enabled. | |
294 | ||
ffa27b6b AW |
295 | config NUMA |
296 | bool "NUMA support" | |
297 | depends on PPC64 | |
298 | default y if SMP && PPC_PSERIES | |
299 | ||
c80d79d7 YG |
300 | config NODES_SHIFT |
301 | int | |
302 | default "4" | |
303 | depends on NEED_MULTIPLE_NODES | |
304 | ||
14cf11af PM |
305 | config ARCH_SELECT_MEMORY_MODEL |
306 | def_bool y | |
307 | depends on PPC64 | |
308 | ||
309 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
310 | def_bool y |
311 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 312 | |
45fb6cea | 313 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 314 | def_bool y |
9100b205 | 315 | depends on PPC64 |
d29eff7b | 316 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 317 | |
45fb6cea | 318 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 319 | def_bool y |
78bde53e | 320 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
14cf11af | 321 | |
c67c3cb4 | 322 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 323 | def_bool y |
c67c3cb4 MG |
324 | |
325 | source "mm/Kconfig" | |
14cf11af | 326 | |
7e9191da MK |
327 | config ARCH_MEMORY_PROBE |
328 | def_bool y | |
329 | depends on MEMORY_HOTPLUG | |
330 | ||
75167957 AW |
331 | # Some NUMA nodes have memory ranges that span |
332 | # other nodes. Even though a pfn is valid and | |
333 | # between a node's start and end pfns, it may not | |
334 | # reside on that node. See memmap_init_zone() | |
335 | # for details. | |
336 | config NODES_SPAN_OTHER_NODES | |
337 | def_bool y | |
338 | depends on NEED_MULTIPLE_NODES | |
339 | ||
16c2d476 BH |
340 | config PPC_HAS_HASH_64K |
341 | bool | |
342 | depends on PPC64 | |
343 | default n | |
344 | ||
3c726f8d BH |
345 | config PPC_64K_PAGES |
346 | bool "64k page size" | |
863c84b9 | 347 | depends on PPC64 |
16c2d476 | 348 | select PPC_HAS_HASH_64K |
3c726f8d BH |
349 | help |
350 | This option changes the kernel logical page size to 64k. On machines | |
98750261 KG |
351 | without processor support for 64k pages, the kernel will simulate |
352 | them by loading each individual 4k page on demand transparently, | |
353 | while on hardware with such support, it will be used to map | |
354 | normal application pages. | |
3c726f8d | 355 | |
fa28237c PM |
356 | config PPC_SUBPAGE_PROT |
357 | bool "Support setting protections for 4k subpages" | |
358 | depends on PPC_64K_PAGES | |
359 | help | |
360 | This option adds support for a system call to allow user programs | |
361 | to set access permissions (read/write, readonly, or no access) | |
362 | on the 4k subpages of each 64k page. | |
363 | ||
14cf11af PM |
364 | config SCHED_SMT |
365 | bool "SMT (Hyperthreading) scheduler support" | |
366 | depends on PPC64 && SMP | |
14cf11af PM |
367 | help |
368 | SMT scheduler support improves the CPU scheduler's decision making | |
369 | when dealing with POWER5 cpus at a cost of slightly increased | |
370 | overhead in some places. If unsure say N here. | |
371 | ||
372 | config PROC_DEVICETREE | |
5f296755 PM |
373 | bool "Support for device tree in /proc" |
374 | depends on PROC_FS | |
14cf11af PM |
375 | help |
376 | This option adds a device-tree directory under /proc which contains | |
377 | an image of the device tree that the kernel copies from Open | |
5f296755 | 378 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af | 379 | |
14cf11af PM |
380 | config CMDLINE_BOOL |
381 | bool "Default bootloader kernel arguments" | |
14cf11af PM |
382 | |
383 | config CMDLINE | |
384 | string "Initial kernel command string" | |
385 | depends on CMDLINE_BOOL | |
386 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
387 | help | |
388 | On some platforms, there is currently no way for the boot loader to | |
389 | pass arguments to the kernel. For these platforms, you can supply | |
390 | some command-line options at build time by entering them here. In | |
391 | most cases you will need to specify the root device here. | |
392 | ||
393 | if !44x || BROKEN | |
394 | source kernel/power/Kconfig | |
395 | endif | |
396 | ||
397 | config SECCOMP | |
398 | bool "Enable seccomp to safely compute untrusted bytecode" | |
399 | depends on PROC_FS | |
400 | default y | |
401 | help | |
402 | This kernel feature is useful for number crunching applications | |
403 | that may need to compute untrusted bytecode during their | |
404 | execution. By using pipes or other transports made available to | |
405 | the process as file descriptors supporting the read/write | |
406 | syscalls, it's possible to isolate those applications in | |
407 | their own address space using seccomp. Once seccomp is | |
408 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
409 | and the task is only allowed to execute a few safe syscalls | |
410 | defined by each seccomp mode. | |
411 | ||
412 | If unsure, say Y. Only embedded should say N here. | |
413 | ||
270429ba SW |
414 | config WANT_DEVICE_TREE |
415 | bool | |
416 | default n | |
417 | ||
418 | config DEVICE_TREE | |
419 | string "Static device tree source file" | |
420 | depends on WANT_DEVICE_TREE | |
421 | help | |
422 | This specifies the device tree source (.dts) file to be | |
423 | compiled and included when building the bootwrapper. If a | |
424 | relative filename is given, then it will be relative to | |
425 | arch/powerpc/boot/dts. If you are not using the bootwrapper, | |
426 | or do not need to build a dts into the bootwrapper, this | |
427 | field is ignored. | |
428 | ||
429 | For example, this is required when building a cuImage target | |
430 | for an older U-Boot, which cannot pass a device tree itself. | |
431 | Such a kernel will not work with a newer U-Boot that tries to | |
432 | pass a device tree (unless you tell it not to). If your U-Boot | |
433 | does not mention a device tree in "help bootm", then use the | |
434 | cuImage target and specify a device tree here. Otherwise, use | |
435 | the uImage target and leave this field blank. | |
436 | ||
14cf11af PM |
437 | endmenu |
438 | ||
439 | config ISA_DMA_API | |
440 | bool | |
373a6da1 | 441 | default !PPC_ISERIES || PCI |
14cf11af PM |
442 | |
443 | menu "Bus options" | |
444 | ||
445 | config ISA | |
446 | bool "Support for ISA-bus hardware" | |
447 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 448 | select PPC_I8259 |
14cf11af PM |
449 | help |
450 | Find out whether you have ISA slots on your motherboard. ISA is the | |
451 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
452 | inside your box. If you have an Apple machine, say N here; if you | |
453 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
454 | you have an embedded board, consult your board documentation. | |
455 | ||
5ac6da66 CL |
456 | config ZONE_DMA |
457 | bool | |
458 | default y | |
459 | ||
14cf11af PM |
460 | config GENERIC_ISA_DMA |
461 | bool | |
462 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
463 | default y | |
464 | ||
25635c71 PM |
465 | config PPC_INDIRECT_PCI |
466 | bool | |
467 | depends on PCI | |
63dafe57 | 468 | default y if 40x || 44x |
25635c71 PM |
469 | default n |
470 | ||
14cf11af PM |
471 | config EISA |
472 | bool | |
473 | ||
474 | config SBUS | |
475 | bool | |
476 | ||
08264cbc KG |
477 | config FSL_SOC |
478 | bool | |
479 | ||
55c44991 RZ |
480 | config FSL_PCI |
481 | bool | |
482 | select PPC_INDIRECT_PCI | |
483 | ||
14cf11af PM |
484 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
485 | config MCA | |
486 | bool | |
487 | ||
488 | config PCI | |
53158620 | 489 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
bed59275 | 490 | || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ |
f9bdedb2 | 491 | || PPC_PS3 || 44x |
f21f49ea | 492 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ |
53158620 | 493 | && !PPC_85xx && !PPC_86xx |
f21f49ea | 494 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
14cf11af | 495 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
df87ef55 | 496 | select ARCH_SUPPORTS_MSI |
14cf11af PM |
497 | help |
498 | Find out whether your system includes a PCI bus. PCI is the name of | |
499 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
500 | your box. If you say Y here, the kernel will include drivers and | |
501 | infrastructure code to support PCI bus devices. | |
502 | ||
503 | config PCI_DOMAINS | |
36e23590 MW |
504 | def_bool PCI |
505 | ||
506 | config PCI_SYSCALL | |
507 | def_bool PCI | |
14cf11af | 508 | |
14cf11af PM |
509 | config PCI_QSPAN |
510 | bool "QSpan PCI" | |
511 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 512 | select PPC_I8259 |
14cf11af PM |
513 | help |
514 | Say Y here if you have a system based on a Motorola 8xx-series | |
515 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
516 | ||
517 | config PCI_8260 | |
518 | bool | |
519 | depends on PCI && 8260 | |
25635c71 | 520 | select PPC_INDIRECT_PCI |
14cf11af PM |
521 | default y |
522 | ||
523 | config 8260_PCI9 | |
4a3ecc62 | 524 | bool "Enable workaround for MPC826x erratum PCI 9" |
e00c5498 | 525 | depends on PCI_8260 && !8272 |
14cf11af PM |
526 | default y |
527 | ||
528 | choice | |
4a3ecc62 | 529 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
530 | depends on 8260_PCI9 |
531 | ||
532 | config 8260_PCI9_IDMA1 | |
533 | bool "IDMA1" | |
534 | ||
535 | config 8260_PCI9_IDMA2 | |
536 | bool "IDMA2" | |
537 | ||
538 | config 8260_PCI9_IDMA3 | |
539 | bool "IDMA3" | |
540 | ||
541 | config 8260_PCI9_IDMA4 | |
542 | bool "IDMA4" | |
543 | ||
544 | endchoice | |
545 | ||
bb53bb3d JM |
546 | source "drivers/pci/pcie/Kconfig" |
547 | ||
14cf11af PM |
548 | source "drivers/pci/Kconfig" |
549 | ||
550 | source "drivers/pcmcia/Kconfig" | |
551 | ||
552 | source "drivers/pci/hotplug/Kconfig" | |
553 | ||
554 | endmenu | |
555 | ||
556 | menu "Advanced setup" | |
557 | depends on PPC32 | |
558 | ||
559 | config ADVANCED_OPTIONS | |
560 | bool "Prompt for advanced kernel configuration options" | |
561 | help | |
562 | This option will enable prompting for a variety of advanced kernel | |
563 | configuration options. These options can cause the kernel to not | |
564 | work if they are set incorrectly, but can be used to optimize certain | |
565 | aspects of kernel memory management. | |
566 | ||
567 | Unless you know what you are doing, say N here. | |
568 | ||
569 | comment "Default settings for advanced configuration options are used" | |
570 | depends on !ADVANCED_OPTIONS | |
571 | ||
572 | config HIGHMEM_START_BOOL | |
573 | bool "Set high memory pool address" | |
574 | depends on ADVANCED_OPTIONS && HIGHMEM | |
575 | help | |
576 | This option allows you to set the base address of the kernel virtual | |
577 | area used to map high memory pages. This can be useful in | |
578 | optimizing the layout of kernel virtual memory. | |
579 | ||
580 | Say N here unless you know what you are doing. | |
581 | ||
582 | config HIGHMEM_START | |
583 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
584 | default "0xfe000000" | |
585 | ||
586 | config LOWMEM_SIZE_BOOL | |
587 | bool "Set maximum low memory" | |
588 | depends on ADVANCED_OPTIONS | |
589 | help | |
590 | This option allows you to set the maximum amount of memory which | |
591 | will be used as "low memory", that is, memory which the kernel can | |
592 | access directly, without having to set up a kernel virtual mapping. | |
593 | This can be useful in optimizing the layout of kernel virtual | |
594 | memory. | |
595 | ||
596 | Say N here unless you know what you are doing. | |
597 | ||
598 | config LOWMEM_SIZE | |
599 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
600 | default "0x30000000" | |
601 | ||
602 | config KERNEL_START_BOOL | |
603 | bool "Set custom kernel base address" | |
604 | depends on ADVANCED_OPTIONS | |
605 | help | |
606 | This option allows you to set the kernel virtual address at which | |
607 | the kernel will map low memory (the kernel image will be linked at | |
608 | this address). This can be useful in optimizing the virtual memory | |
609 | layout of the system. | |
610 | ||
611 | Say N here unless you know what you are doing. | |
612 | ||
613 | config KERNEL_START | |
614 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
615 | default "0xc0000000" | |
616 | ||
617 | config TASK_SIZE_BOOL | |
618 | bool "Set custom user task size" | |
619 | depends on ADVANCED_OPTIONS | |
620 | help | |
621 | This option allows you to set the amount of virtual address space | |
622 | allocated to user tasks. This can be useful in optimizing the | |
623 | virtual memory layout of the system. | |
624 | ||
625 | Say N here unless you know what you are doing. | |
626 | ||
627 | config TASK_SIZE | |
628 | hex "Size of user task space" if TASK_SIZE_BOOL | |
4d9e5510 KG |
629 | default "0x80000000" if PPC_PREP || PPC_8xx |
630 | default "0xc0000000" | |
14cf11af PM |
631 | |
632 | config CONSISTENT_START_BOOL | |
633 | bool "Set custom consistent memory pool address" | |
634 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
635 | help | |
636 | This option allows you to set the base virtual address | |
4b3f686d | 637 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
638 | memory is used to make consistent memory allocations. |
639 | ||
640 | config CONSISTENT_START | |
641 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
ccf0d68e | 642 | default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) |
14cf11af PM |
643 | default "0xff100000" if NOT_COHERENT_CACHE |
644 | ||
645 | config CONSISTENT_SIZE_BOOL | |
646 | bool "Set custom consistent memory pool size" | |
647 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
648 | help | |
4b3f686d | 649 | This option allows you to set the size of the |
14cf11af PM |
650 | consistent memory pool. This pool of virtual memory |
651 | is used to make consistent memory allocations. | |
652 | ||
653 | config CONSISTENT_SIZE | |
654 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
655 | default "0x00200000" if NOT_COHERENT_CACHE | |
656 | ||
657 | config BOOT_LOAD_BOOL | |
658 | bool "Set the boot link/load address" | |
659 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
660 | help | |
661 | This option allows you to set the initial load address of the zImage | |
662 | or zImage.initrd file. This can be useful if you are on a board | |
663 | which has a small amount of memory. | |
664 | ||
665 | Say N here unless you know what you are doing. | |
666 | ||
667 | config BOOT_LOAD | |
668 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
669 | default "0x00400000" if 40x || 8xx || 8260 | |
670 | default "0x01000000" if 44x | |
671 | default "0x00800000" | |
672 | ||
673 | config PIN_TLB | |
674 | bool "Pinned Kernel TLBs (860 ONLY)" | |
675 | depends on ADVANCED_OPTIONS && 8xx | |
676 | endmenu | |
677 | ||
cabb5587 SR |
678 | if PPC64 |
679 | config KERNEL_START | |
680 | hex | |
eeb2d218 | 681 | default "0xc000000000000000" |
cabb5587 SR |
682 | endif |
683 | ||
14cf11af PM |
684 | source "net/Kconfig" |
685 | ||
686 | source "drivers/Kconfig" | |
687 | ||
688 | source "fs/Kconfig" | |
689 | ||
690 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
691 | ||
692 | # XXX source "arch/ppc/8260_io/Kconfig" | |
693 | ||
98658538 LY |
694 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
695 | ||
14cf11af PM |
696 | source "lib/Kconfig" |
697 | ||
09cadedb | 698 | source "kernel/Kconfig.instrumentation" |
cd6b0762 | 699 | |
14cf11af PM |
700 | source "arch/powerpc/Kconfig.debug" |
701 | ||
702 | source "security/Kconfig" | |
703 | ||
704 | config KEYS_COMPAT | |
705 | bool | |
706 | depends on COMPAT && KEYS | |
707 | default y | |
708 | ||
709 | source "crypto/Kconfig" | |
6f668280 DP |
710 | |
711 | config PPC_CLOCK | |
712 | bool | |
713 | default n | |
1088a209 SM |
714 | |
715 | config PPC_LIB_RHEAP | |
716 | bool | |
717 |