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1 | # For a description of the syntax of this configuration file, | ||
2 | # see Documentation/kbuild/kconfig-language.txt. | ||
3 | # | ||
4 | |||
5 | mainmenu "Linux/PowerPC Kernel Configuration" | ||
6 | |||
7 | config PPC64 | ||
8 | bool "64-bit kernel" | ||
9 | default n | ||
10 | help | ||
11 | This option selects whether a 32-bit or a 64-bit kernel | ||
12 | will be built. | ||
13 | |||
14 | config PPC32 | ||
15 | bool | ||
16 | default y if !PPC64 | ||
17 | |||
18 | config 64BIT | ||
19 | bool | ||
20 | default y if PPC64 | ||
21 | |||
22 | config PPC_MERGE | ||
23 | def_bool y | ||
24 | |||
25 | config MMU | ||
26 | bool | ||
27 | default y | ||
28 | |||
29 | config UID16 | ||
30 | bool | ||
31 | |||
32 | config GENERIC_HARDIRQS | ||
33 | bool | ||
34 | default y | ||
35 | |||
36 | config RWSEM_GENERIC_SPINLOCK | ||
37 | bool | ||
38 | |||
39 | config RWSEM_XCHGADD_ALGORITHM | ||
40 | bool | ||
41 | default y | ||
42 | |||
43 | config GENERIC_CALIBRATE_DELAY | ||
44 | bool | ||
45 | default y | ||
46 | |||
47 | config PPC | ||
48 | bool | ||
49 | default y | ||
50 | |||
51 | config EARLY_PRINTK | ||
52 | bool | ||
53 | default y if PPC64 | ||
54 | |||
55 | config COMPAT | ||
56 | bool | ||
57 | default y if PPC64 | ||
58 | |||
59 | config SYSVIPC_COMPAT | ||
60 | bool | ||
61 | depends on COMPAT && SYSVIPC | ||
62 | default y | ||
63 | |||
64 | # All PPC32s use generic nvram driver through ppc_md | ||
65 | config GENERIC_NVRAM | ||
66 | bool | ||
67 | default y if PPC32 | ||
68 | |||
69 | config SCHED_NO_NO_OMIT_FRAME_POINTER | ||
70 | bool | ||
71 | default y | ||
72 | |||
73 | config ARCH_MAY_HAVE_PC_FDC | ||
74 | bool | ||
75 | default y | ||
76 | |||
77 | menu "Processor support" | ||
78 | choice | ||
79 | prompt "Processor Type" | ||
80 | depends on PPC32 | ||
81 | default 6xx | ||
82 | |||
83 | config 6xx | ||
84 | bool "6xx/7xx/74xx" | ||
85 | select PPC_FPU | ||
86 | help | ||
87 | There are four families of PowerPC chips supported. The more common | ||
88 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | ||
89 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | ||
90 | embedded versions (403 and 405) and the high end 64 bit Power | ||
91 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | ||
92 | |||
93 | Unless you are building a kernel for one of the embedded processor | ||
94 | systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. | ||
95 | Note that the kernel runs in 32-bit mode even on 64-bit chips. | ||
96 | |||
97 | config PPC_52xx | ||
98 | bool "Freescale 52xx" | ||
99 | |||
100 | config PPC_82xx | ||
101 | bool "Freescale 82xx" | ||
102 | |||
103 | config PPC_83xx | ||
104 | bool "Freescale 83xx" | ||
105 | |||
106 | config 40x | ||
107 | bool "AMCC 40x" | ||
108 | |||
109 | config 44x | ||
110 | bool "AMCC 44x" | ||
111 | |||
112 | config 8xx | ||
113 | bool "Freescale 8xx" | ||
114 | |||
115 | config E200 | ||
116 | bool "Freescale e200" | ||
117 | |||
118 | config E500 | ||
119 | bool "Freescale e500" | ||
120 | endchoice | ||
121 | |||
122 | config POWER4_ONLY | ||
123 | bool "Optimize for POWER4" | ||
124 | depends on PPC64 | ||
125 | default n | ||
126 | ---help--- | ||
127 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | ||
128 | The resulting binary will not work on POWER3 or RS64 processors | ||
129 | when compiled with binutils 2.15 or later. | ||
130 | |||
131 | config POWER3 | ||
132 | bool | ||
133 | depends on PPC64 | ||
134 | default y if !POWER4_ONLY | ||
135 | |||
136 | config POWER4 | ||
137 | depends on PPC64 | ||
138 | def_bool y | ||
139 | |||
140 | config PPC_FPU | ||
141 | bool | ||
142 | default y if PPC64 | ||
143 | |||
144 | config BOOKE | ||
145 | bool | ||
146 | depends on E200 || E500 | ||
147 | default y | ||
148 | |||
149 | config FSL_BOOKE | ||
150 | bool | ||
151 | depends on E200 || E500 | ||
152 | default y | ||
153 | |||
154 | config PTE_64BIT | ||
155 | bool | ||
156 | depends on 44x || E500 | ||
157 | default y if 44x | ||
158 | default y if E500 && PHYS_64BIT | ||
159 | |||
160 | config PHYS_64BIT | ||
161 | bool 'Large physical address support' if E500 | ||
162 | depends on 44x || E500 | ||
163 | default y if 44x | ||
164 | ---help--- | ||
165 | This option enables kernel support for larger than 32-bit physical | ||
166 | addresses. This features is not be available on all e500 cores. | ||
167 | |||
168 | If in doubt, say N here. | ||
169 | |||
170 | config ALTIVEC | ||
171 | bool "AltiVec Support" | ||
172 | depends on 6xx || POWER4 | ||
173 | ---help--- | ||
174 | This option enables kernel support for the Altivec extensions to the | ||
175 | PowerPC processor. The kernel currently supports saving and restoring | ||
176 | altivec registers, and turning on the 'altivec enable' bit so user | ||
177 | processes can execute altivec instructions. | ||
178 | |||
179 | This option is only usefully if you have a processor that supports | ||
180 | altivec (G4, otherwise known as 74xx series), but does not have | ||
181 | any affect on a non-altivec cpu (it does, however add code to the | ||
182 | kernel). | ||
183 | |||
184 | If in doubt, say Y here. | ||
185 | |||
186 | config SPE | ||
187 | bool "SPE Support" | ||
188 | depends on E200 || E500 | ||
189 | ---help--- | ||
190 | This option enables kernel support for the Signal Processing | ||
191 | Extensions (SPE) to the PowerPC processor. The kernel currently | ||
192 | supports saving and restoring SPE registers, and turning on the | ||
193 | 'spe enable' bit so user processes can execute SPE instructions. | ||
194 | |||
195 | This option is only useful if you have a processor that supports | ||
196 | SPE (e500, otherwise known as 85xx series), but does not have any | ||
197 | effect on a non-spe cpu (it does, however add code to the kernel). | ||
198 | |||
199 | If in doubt, say Y here. | ||
200 | |||
201 | config PPC_STD_MMU | ||
202 | bool | ||
203 | depends on 6xx || POWER3 || POWER4 || PPC64 | ||
204 | default y | ||
205 | |||
206 | config PPC_STD_MMU_32 | ||
207 | def_bool y | ||
208 | depends on PPC_STD_MMU && PPC32 | ||
209 | |||
210 | config SMP | ||
211 | depends on PPC_STD_MMU | ||
212 | bool "Symmetric multi-processing support" | ||
213 | ---help--- | ||
214 | This enables support for systems with more than one CPU. If you have | ||
215 | a system with only one CPU, say N. If you have a system with more | ||
216 | than one CPU, say Y. Note that the kernel does not currently | ||
217 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | ||
218 | since they have inadequate hardware support for multiprocessor | ||
219 | operation. | ||
220 | |||
221 | If you say N here, the kernel will run on single and multiprocessor | ||
222 | machines, but will use only one CPU of a multiprocessor machine. If | ||
223 | you say Y here, the kernel will run on single-processor machines. | ||
224 | On a single-processor machine, the kernel will run faster if you say | ||
225 | N here. | ||
226 | |||
227 | If you don't know what to do here, say N. | ||
228 | |||
229 | config NR_CPUS | ||
230 | int "Maximum number of CPUs (2-32)" | ||
231 | range 2 128 | ||
232 | depends on SMP | ||
233 | default "32" if PPC64 | ||
234 | default "4" | ||
235 | |||
236 | config NOT_COHERENT_CACHE | ||
237 | bool | ||
238 | depends on 4xx || 8xx || E200 | ||
239 | default y | ||
240 | endmenu | ||
241 | |||
242 | source "init/Kconfig" | ||
243 | |||
244 | menu "Platform support" | ||
245 | depends on PPC64 || 6xx | ||
246 | |||
247 | choice | ||
248 | prompt "Machine type" | ||
249 | default PPC_MULTIPLATFORM | ||
250 | |||
251 | config PPC_MULTIPLATFORM | ||
252 | bool "Generic desktop/server/laptop" | ||
253 | help | ||
254 | Select this option if configuring for an IBM pSeries or | ||
255 | RS/6000 machine, an Apple machine, or a PReP, CHRP, | ||
256 | Maple or Cell-based machine. | ||
257 | |||
258 | config PPC_ISERIES | ||
259 | bool "IBM Legacy iSeries" | ||
260 | depends on PPC64 | ||
261 | |||
262 | config EMBEDDED6xx | ||
263 | bool "Embedded 6xx/7xx/7xxx-based board" | ||
264 | depends on PPC32 | ||
265 | |||
266 | config APUS | ||
267 | bool "Amiga-APUS" | ||
268 | depends on PPC32 && BROKEN | ||
269 | help | ||
270 | Select APUS if configuring for a PowerUP Amiga. | ||
271 | More information is available at: | ||
272 | <http://linux-apus.sourceforge.net/>. | ||
273 | endchoice | ||
274 | |||
275 | config PPC_PSERIES | ||
276 | depends on PPC_MULTIPLATFORM && PPC64 | ||
277 | bool " IBM pSeries & new (POWER5-based) iSeries" | ||
278 | default y | ||
279 | |||
280 | config PPC_CHRP | ||
281 | bool " Common Hardware Reference Platform (CHRP) based machines" | ||
282 | depends on PPC_MULTIPLATFORM && PPC32 | ||
283 | default y | ||
284 | |||
285 | config PPC_PMAC | ||
286 | bool " Apple PowerMac based machines" | ||
287 | depends on PPC_MULTIPLATFORM | ||
288 | default y | ||
289 | |||
290 | config PPC_PMAC64 | ||
291 | bool | ||
292 | depends on PPC_PMAC && POWER4 | ||
293 | default y | ||
294 | |||
295 | config PPC_PREP | ||
296 | bool " PowerPC Reference Platform (PReP) based machines" | ||
297 | depends on PPC_MULTIPLATFORM && PPC32 | ||
298 | default y | ||
299 | |||
300 | config PPC_MAPLE | ||
301 | depends on PPC_MULTIPLATFORM && PPC64 | ||
302 | bool " Maple 970FX Evaluation Board" | ||
303 | select U3_DART | ||
304 | select MPIC_BROKEN_U3 | ||
305 | default n | ||
306 | help | ||
307 | This option enables support for the Maple 970FX Evaluation Board. | ||
308 | For more informations, refer to <http://www.970eval.com> | ||
309 | |||
310 | config PPC_BPA | ||
311 | bool " Broadband Processor Architecture" | ||
312 | depends on PPC_MULTIPLATFORM && PPC64 | ||
313 | |||
314 | config PPC_OF | ||
315 | bool | ||
316 | depends on PPC_MULTIPLATFORM # for now | ||
317 | default y | ||
318 | |||
319 | config XICS | ||
320 | depends on PPC_PSERIES | ||
321 | bool | ||
322 | default y | ||
323 | |||
324 | config U3_DART | ||
325 | bool | ||
326 | depends on PPC_MULTIPLATFORM && PPC64 | ||
327 | default n | ||
328 | |||
329 | config MPIC | ||
330 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE | ||
331 | bool | ||
332 | default y | ||
333 | |||
334 | config MPIC_BROKEN_U3 | ||
335 | bool | ||
336 | depends on PPC_MAPLE | ||
337 | default y | ||
338 | |||
339 | config BPA_IIC | ||
340 | depends on PPC_BPA | ||
341 | bool | ||
342 | default y | ||
343 | |||
344 | config IBMVIO | ||
345 | depends on PPC_PSERIES || PPC_ISERIES | ||
346 | bool | ||
347 | default y | ||
348 | |||
349 | source "drivers/cpufreq/Kconfig" | ||
350 | |||
351 | config CPU_FREQ_PMAC | ||
352 | bool "Support for Apple PowerBooks" | ||
353 | depends on CPU_FREQ && ADB_PMU && PPC32 | ||
354 | select CPU_FREQ_TABLE | ||
355 | help | ||
356 | This adds support for frequency switching on Apple PowerBooks, | ||
357 | this currently includes some models of iBook & Titanium | ||
358 | PowerBook. | ||
359 | |||
360 | config PPC601_SYNC_FIX | ||
361 | bool "Workarounds for PPC601 bugs" | ||
362 | depends on 6xx && (PPC_PREP || PPC_PMAC) | ||
363 | help | ||
364 | Some versions of the PPC601 (the first PowerPC chip) have bugs which | ||
365 | mean that extra synchronization instructions are required near | ||
366 | certain instructions, typically those that make major changes to the | ||
367 | CPU state. These extra instructions reduce performance slightly. | ||
368 | If you say N here, these extra instructions will not be included, | ||
369 | resulting in a kernel which will run faster but may not run at all | ||
370 | on some systems with the PPC601 chip. | ||
371 | |||
372 | If in doubt, say Y here. | ||
373 | |||
374 | config TAU | ||
375 | bool "Thermal Management Support" | ||
376 | depends on 6xx | ||
377 | help | ||
378 | G3 and G4 processors have an on-chip temperature sensor called the | ||
379 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die | ||
380 | temperature within 2-4 degrees Celsius. This option shows the current | ||
381 | on-die temperature in /proc/cpuinfo if the cpu supports it. | ||
382 | |||
383 | Unfortunately, on some chip revisions, this sensor is very inaccurate | ||
384 | and in some cases, does not work at all, so don't assume the cpu | ||
385 | temp is actually what /proc/cpuinfo says it is. | ||
386 | |||
387 | config TAU_INT | ||
388 | bool "Interrupt driven TAU driver (DANGEROUS)" | ||
389 | depends on TAU | ||
390 | ---help--- | ||
391 | The TAU supports an interrupt driven mode which causes an interrupt | ||
392 | whenever the temperature goes out of range. This is the fastest way | ||
393 | to get notified the temp has exceeded a range. With this option off, | ||
394 | a timer is used to re-check the temperature periodically. | ||
395 | |||
396 | However, on some cpus it appears that the TAU interrupt hardware | ||
397 | is buggy and can cause a situation which would lead unexplained hard | ||
398 | lockups. | ||
399 | |||
400 | Unless you are extending the TAU driver, or enjoy kernel/hardware | ||
401 | debugging, leave this option off. | ||
402 | |||
403 | config TAU_AVERAGE | ||
404 | bool "Average high and low temp" | ||
405 | depends on TAU | ||
406 | ---help--- | ||
407 | The TAU hardware can compare the temperature to an upper and lower | ||
408 | bound. The default behavior is to show both the upper and lower | ||
409 | bound in /proc/cpuinfo. If the range is large, the temperature is | ||
410 | either changing a lot, or the TAU hardware is broken (likely on some | ||
411 | G4's). If the range is small (around 4 degrees), the temperature is | ||
412 | relatively stable. If you say Y here, a single temperature value, | ||
413 | halfway between the upper and lower bounds, will be reported in | ||
414 | /proc/cpuinfo. | ||
415 | |||
416 | If in doubt, say N here. | ||
417 | endmenu | ||
418 | |||
419 | source arch/powerpc/platforms/embedded6xx/Kconfig | ||
420 | source arch/powerpc/platforms/4xx/Kconfig | ||
421 | source arch/powerpc/platforms/85xx/Kconfig | ||
422 | source arch/powerpc/platforms/8xx/Kconfig | ||
423 | |||
424 | menu "Kernel options" | ||
425 | |||
426 | config HIGHMEM | ||
427 | bool "High memory support" | ||
428 | depends on PPC32 | ||
429 | |||
430 | source kernel/Kconfig.hz | ||
431 | source kernel/Kconfig.preempt | ||
432 | source "fs/Kconfig.binfmt" | ||
433 | |||
434 | # We optimistically allocate largepages from the VM, so make the limit | ||
435 | # large enough (16MB). This badly named config option is actually | ||
436 | # max order + 1 | ||
437 | config FORCE_MAX_ZONEORDER | ||
438 | int | ||
439 | depends on PPC64 | ||
440 | default "13" | ||
441 | |||
442 | config MATH_EMULATION | ||
443 | bool "Math emulation" | ||
444 | depends on 4xx || 8xx || E200 || E500 | ||
445 | ---help--- | ||
446 | Some PowerPC chips designed for embedded applications do not have | ||
447 | a floating-point unit and therefore do not implement the | ||
448 | floating-point instructions in the PowerPC instruction set. If you | ||
449 | say Y here, the kernel will include code to emulate a floating-point | ||
450 | unit, which will allow programs that use floating-point | ||
451 | instructions to run. | ||
452 | |||
453 | config IOMMU_VMERGE | ||
454 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | ||
455 | depends on EXPERIMENTAL && PPC64 | ||
456 | default n | ||
457 | help | ||
458 | Cause IO segments sent to a device for DMA to be merged virtually | ||
459 | by the IOMMU when they happen to have been allocated contiguously. | ||
460 | This doesn't add pressure to the IOMMU allocator. However, some | ||
461 | drivers don't support getting large merged segments coming back | ||
462 | from *_map_sg(). Say Y if you know the drivers you are using are | ||
463 | properly handling this case. | ||
464 | |||
465 | config HOTPLUG_CPU | ||
466 | bool "Support for enabling/disabling CPUs" | ||
467 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | ||
468 | ---help--- | ||
469 | Say Y here to be able to disable and re-enable individual | ||
470 | CPUs at runtime on SMP machines. | ||
471 | |||
472 | Say N if you are unsure. | ||
473 | |||
474 | config KEXEC | ||
475 | bool "kexec system call (EXPERIMENTAL)" | ||
476 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | ||
477 | help | ||
478 | kexec is a system call that implements the ability to shutdown your | ||
479 | current kernel, and to start another kernel. It is like a reboot | ||
480 | but it is indepedent of the system firmware. And like a reboot | ||
481 | you can start any kernel with it, not just Linux. | ||
482 | |||
483 | The name comes from the similiarity to the exec system call. | ||
484 | |||
485 | It is an ongoing process to be certain the hardware in a machine | ||
486 | is properly shutdown, so do not be surprised if this code does not | ||
487 | initially work for you. It may help to enable device hotplugging | ||
488 | support. As of this writing the exact hardware interface is | ||
489 | strongly in flux, so no good recommendation can be made. | ||
490 | |||
491 | config EMBEDDEDBOOT | ||
492 | bool | ||
493 | depends on 8xx || 8260 | ||
494 | default y | ||
495 | |||
496 | config PC_KEYBOARD | ||
497 | bool "PC PS/2 style Keyboard" | ||
498 | depends on 4xx || CPM2 | ||
499 | |||
500 | config PPCBUG_NVRAM | ||
501 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | ||
502 | default y if PPC_PREP | ||
503 | |||
504 | config IRQ_ALL_CPUS | ||
505 | bool "Distribute interrupts on all CPUs by default" | ||
506 | depends on SMP && !MV64360 | ||
507 | help | ||
508 | This option gives the kernel permission to distribute IRQs across | ||
509 | multiple CPUs. Saying N here will route all IRQs to the first | ||
510 | CPU. Generally saying Y is safe, although some problems have been | ||
511 | reported with SMP Power Macintoshes with this option enabled. | ||
512 | |||
513 | source "arch/powerpc/platforms/pseries/Kconfig" | ||
514 | |||
515 | config ARCH_SELECT_MEMORY_MODEL | ||
516 | def_bool y | ||
517 | depends on PPC64 | ||
518 | |||
519 | config ARCH_FLATMEM_ENABLE | ||
520 | def_bool y | ||
521 | depends on PPC64 && !NUMA | ||
522 | |||
523 | config ARCH_DISCONTIGMEM_ENABLE | ||
524 | def_bool y | ||
525 | depends on SMP && PPC_PSERIES | ||
526 | |||
527 | config ARCH_DISCONTIGMEM_DEFAULT | ||
528 | def_bool y | ||
529 | depends on ARCH_DISCONTIGMEM_ENABLE | ||
530 | |||
531 | config ARCH_FLATMEM_ENABLE | ||
532 | def_bool y | ||
533 | depends on PPC64 | ||
534 | |||
535 | config ARCH_SPARSEMEM_ENABLE | ||
536 | def_bool y | ||
537 | depends on ARCH_DISCONTIGMEM_ENABLE | ||
538 | |||
539 | source "mm/Kconfig" | ||
540 | |||
541 | config HAVE_ARCH_EARLY_PFN_TO_NID | ||
542 | def_bool y | ||
543 | depends on NEED_MULTIPLE_NODES | ||
544 | |||
545 | # Some NUMA nodes have memory ranges that span | ||
546 | # other nodes. Even though a pfn is valid and | ||
547 | # between a node's start and end pfns, it may not | ||
548 | # reside on that node. | ||
549 | # | ||
550 | # This is a relatively temporary hack that should | ||
551 | # be able to go away when sparsemem is fully in | ||
552 | # place | ||
553 | |||
554 | config NODES_SPAN_OTHER_NODES | ||
555 | def_bool y | ||
556 | depends on NEED_MULTIPLE_NODES | ||
557 | |||
558 | config NUMA | ||
559 | bool "NUMA support" | ||
560 | default y if DISCONTIGMEM || SPARSEMEM | ||
561 | |||
562 | config SCHED_SMT | ||
563 | bool "SMT (Hyperthreading) scheduler support" | ||
564 | depends on PPC64 && SMP | ||
565 | default off | ||
566 | help | ||
567 | SMT scheduler support improves the CPU scheduler's decision making | ||
568 | when dealing with POWER5 cpus at a cost of slightly increased | ||
569 | overhead in some places. If unsure say N here. | ||
570 | |||
571 | config PROC_DEVICETREE | ||
572 | bool "Support for Open Firmware device tree in /proc" | ||
573 | depends on (PPC_OF || PPC_ISERIES) && PROC_FS | ||
574 | help | ||
575 | This option adds a device-tree directory under /proc which contains | ||
576 | an image of the device tree that the kernel copies from Open | ||
577 | Firmware. If unsure, say Y here. | ||
578 | |||
579 | source "arch/powerpc/platforms/prep/Kconfig" | ||
580 | |||
581 | config CMDLINE_BOOL | ||
582 | bool "Default bootloader kernel arguments" | ||
583 | depends on !PPC_ISERIES | ||
584 | |||
585 | config CMDLINE | ||
586 | string "Initial kernel command string" | ||
587 | depends on CMDLINE_BOOL | ||
588 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | ||
589 | help | ||
590 | On some platforms, there is currently no way for the boot loader to | ||
591 | pass arguments to the kernel. For these platforms, you can supply | ||
592 | some command-line options at build time by entering them here. In | ||
593 | most cases you will need to specify the root device here. | ||
594 | |||
595 | if !44x || BROKEN | ||
596 | source kernel/power/Kconfig | ||
597 | endif | ||
598 | |||
599 | config SECCOMP | ||
600 | bool "Enable seccomp to safely compute untrusted bytecode" | ||
601 | depends on PROC_FS | ||
602 | default y | ||
603 | help | ||
604 | This kernel feature is useful for number crunching applications | ||
605 | that may need to compute untrusted bytecode during their | ||
606 | execution. By using pipes or other transports made available to | ||
607 | the process as file descriptors supporting the read/write | ||
608 | syscalls, it's possible to isolate those applications in | ||
609 | their own address space using seccomp. Once seccomp is | ||
610 | enabled via /proc/<pid>/seccomp, it cannot be disabled | ||
611 | and the task is only allowed to execute a few safe syscalls | ||
612 | defined by each seccomp mode. | ||
613 | |||
614 | If unsure, say Y. Only embedded should say N here. | ||
615 | |||
616 | endmenu | ||
617 | |||
618 | config ISA_DMA_API | ||
619 | bool | ||
620 | default y | ||
621 | |||
622 | menu "Bus options" | ||
623 | |||
624 | config ISA | ||
625 | bool "Support for ISA-bus hardware" | ||
626 | depends on PPC_PREP || PPC_CHRP | ||
627 | help | ||
628 | Find out whether you have ISA slots on your motherboard. ISA is the | ||
629 | name of a bus system, i.e. the way the CPU talks to the other stuff | ||
630 | inside your box. If you have an Apple machine, say N here; if you | ||
631 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | ||
632 | you have an embedded board, consult your board documentation. | ||
633 | |||
634 | config GENERIC_ISA_DMA | ||
635 | bool | ||
636 | depends on PPC64 || POWER4 || 6xx && !CPM2 | ||
637 | default y | ||
638 | |||
639 | config EISA | ||
640 | bool | ||
641 | |||
642 | config SBUS | ||
643 | bool | ||
644 | |||
645 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any | ||
646 | config MCA | ||
647 | bool | ||
648 | |||
649 | config PCI | ||
650 | bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) | ||
651 | default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx | ||
652 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS | ||
653 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | ||
654 | help | ||
655 | Find out whether your system includes a PCI bus. PCI is the name of | ||
656 | a bus system, i.e. the way the CPU talks to the other stuff inside | ||
657 | your box. If you say Y here, the kernel will include drivers and | ||
658 | infrastructure code to support PCI bus devices. | ||
659 | |||
660 | config PCI_DOMAINS | ||
661 | bool | ||
662 | default PCI | ||
663 | |||
664 | config MPC83xx_PCI2 | ||
665 | bool " Supprt for 2nd PCI host controller" | ||
666 | depends on PCI && MPC834x | ||
667 | default y if MPC834x_SYS | ||
668 | |||
669 | config PCI_QSPAN | ||
670 | bool "QSpan PCI" | ||
671 | depends on !4xx && !CPM2 && 8xx | ||
672 | help | ||
673 | Say Y here if you have a system based on a Motorola 8xx-series | ||
674 | embedded processor with a QSPAN PCI interface, otherwise say N. | ||
675 | |||
676 | config PCI_8260 | ||
677 | bool | ||
678 | depends on PCI && 8260 | ||
679 | default y | ||
680 | |||
681 | config 8260_PCI9 | ||
682 | bool " Enable workaround for MPC826x erratum PCI 9" | ||
683 | depends on PCI_8260 && !ADS8272 | ||
684 | default y | ||
685 | |||
686 | choice | ||
687 | prompt " IDMA channel for PCI 9 workaround" | ||
688 | depends on 8260_PCI9 | ||
689 | |||
690 | config 8260_PCI9_IDMA1 | ||
691 | bool "IDMA1" | ||
692 | |||
693 | config 8260_PCI9_IDMA2 | ||
694 | bool "IDMA2" | ||
695 | |||
696 | config 8260_PCI9_IDMA3 | ||
697 | bool "IDMA3" | ||
698 | |||
699 | config 8260_PCI9_IDMA4 | ||
700 | bool "IDMA4" | ||
701 | |||
702 | endchoice | ||
703 | |||
704 | source "drivers/pci/Kconfig" | ||
705 | |||
706 | source "drivers/pcmcia/Kconfig" | ||
707 | |||
708 | source "drivers/pci/hotplug/Kconfig" | ||
709 | |||
710 | endmenu | ||
711 | |||
712 | menu "Advanced setup" | ||
713 | depends on PPC32 | ||
714 | |||
715 | config ADVANCED_OPTIONS | ||
716 | bool "Prompt for advanced kernel configuration options" | ||
717 | help | ||
718 | This option will enable prompting for a variety of advanced kernel | ||
719 | configuration options. These options can cause the kernel to not | ||
720 | work if they are set incorrectly, but can be used to optimize certain | ||
721 | aspects of kernel memory management. | ||
722 | |||
723 | Unless you know what you are doing, say N here. | ||
724 | |||
725 | comment "Default settings for advanced configuration options are used" | ||
726 | depends on !ADVANCED_OPTIONS | ||
727 | |||
728 | config HIGHMEM_START_BOOL | ||
729 | bool "Set high memory pool address" | ||
730 | depends on ADVANCED_OPTIONS && HIGHMEM | ||
731 | help | ||
732 | This option allows you to set the base address of the kernel virtual | ||
733 | area used to map high memory pages. This can be useful in | ||
734 | optimizing the layout of kernel virtual memory. | ||
735 | |||
736 | Say N here unless you know what you are doing. | ||
737 | |||
738 | config HIGHMEM_START | ||
739 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | ||
740 | default "0xfe000000" | ||
741 | |||
742 | config LOWMEM_SIZE_BOOL | ||
743 | bool "Set maximum low memory" | ||
744 | depends on ADVANCED_OPTIONS | ||
745 | help | ||
746 | This option allows you to set the maximum amount of memory which | ||
747 | will be used as "low memory", that is, memory which the kernel can | ||
748 | access directly, without having to set up a kernel virtual mapping. | ||
749 | This can be useful in optimizing the layout of kernel virtual | ||
750 | memory. | ||
751 | |||
752 | Say N here unless you know what you are doing. | ||
753 | |||
754 | config LOWMEM_SIZE | ||
755 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | ||
756 | default "0x30000000" | ||
757 | |||
758 | config KERNEL_START_BOOL | ||
759 | bool "Set custom kernel base address" | ||
760 | depends on ADVANCED_OPTIONS | ||
761 | help | ||
762 | This option allows you to set the kernel virtual address at which | ||
763 | the kernel will map low memory (the kernel image will be linked at | ||
764 | this address). This can be useful in optimizing the virtual memory | ||
765 | layout of the system. | ||
766 | |||
767 | Say N here unless you know what you are doing. | ||
768 | |||
769 | config KERNEL_START | ||
770 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | ||
771 | default "0xc0000000" | ||
772 | |||
773 | config TASK_SIZE_BOOL | ||
774 | bool "Set custom user task size" | ||
775 | depends on ADVANCED_OPTIONS | ||
776 | help | ||
777 | This option allows you to set the amount of virtual address space | ||
778 | allocated to user tasks. This can be useful in optimizing the | ||
779 | virtual memory layout of the system. | ||
780 | |||
781 | Say N here unless you know what you are doing. | ||
782 | |||
783 | config TASK_SIZE | ||
784 | hex "Size of user task space" if TASK_SIZE_BOOL | ||
785 | default "0x80000000" | ||
786 | |||
787 | config CONSISTENT_START_BOOL | ||
788 | bool "Set custom consistent memory pool address" | ||
789 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | ||
790 | help | ||
791 | This option allows you to set the base virtual address | ||
792 | of the the consistent memory pool. This pool of virtual | ||
793 | memory is used to make consistent memory allocations. | ||
794 | |||
795 | config CONSISTENT_START | ||
796 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | ||
797 | default "0xff100000" if NOT_COHERENT_CACHE | ||
798 | |||
799 | config CONSISTENT_SIZE_BOOL | ||
800 | bool "Set custom consistent memory pool size" | ||
801 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | ||
802 | help | ||
803 | This option allows you to set the size of the the | ||
804 | consistent memory pool. This pool of virtual memory | ||
805 | is used to make consistent memory allocations. | ||
806 | |||
807 | config CONSISTENT_SIZE | ||
808 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | ||
809 | default "0x00200000" if NOT_COHERENT_CACHE | ||
810 | |||
811 | config BOOT_LOAD_BOOL | ||
812 | bool "Set the boot link/load address" | ||
813 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | ||
814 | help | ||
815 | This option allows you to set the initial load address of the zImage | ||
816 | or zImage.initrd file. This can be useful if you are on a board | ||
817 | which has a small amount of memory. | ||
818 | |||
819 | Say N here unless you know what you are doing. | ||
820 | |||
821 | config BOOT_LOAD | ||
822 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | ||
823 | default "0x00400000" if 40x || 8xx || 8260 | ||
824 | default "0x01000000" if 44x | ||
825 | default "0x00800000" | ||
826 | |||
827 | config PIN_TLB | ||
828 | bool "Pinned Kernel TLBs (860 ONLY)" | ||
829 | depends on ADVANCED_OPTIONS && 8xx | ||
830 | endmenu | ||
831 | |||
832 | if PPC64 | ||
833 | config KERNEL_START | ||
834 | hex | ||
835 | default "0xc000000000000000" | ||
836 | endif | ||
837 | |||
838 | source "net/Kconfig" | ||
839 | |||
840 | source "drivers/Kconfig" | ||
841 | |||
842 | source "fs/Kconfig" | ||
843 | |||
844 | # XXX source "arch/ppc/8xx_io/Kconfig" | ||
845 | |||
846 | # XXX source "arch/ppc/8260_io/Kconfig" | ||
847 | |||
848 | source "arch/powerpc/platforms/iseries/Kconfig" | ||
849 | |||
850 | source "lib/Kconfig" | ||
851 | |||
852 | source "arch/powerpc/oprofile/Kconfig" | ||
853 | |||
854 | source "arch/powerpc/Kconfig.debug" | ||
855 | |||
856 | source "security/Kconfig" | ||
857 | |||
858 | config KEYS_COMPAT | ||
859 | bool | ||
860 | depends on COMPAT && KEYS | ||
861 | default y | ||
862 | |||
863 | source "crypto/Kconfig" | ||