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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 | ||
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 | ||
14cf11af PM |
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" | |
187a0067 | 124 | depends on PPC64 |
14cf11af PM |
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 | |
187a0067 | 133 | depends on PPC64 |
14cf11af PM |
134 | default y if !POWER4_ONLY |
135 | ||
136 | config POWER4 | |
187a0067 | 137 | depends on PPC64 |
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138 | def_bool y |
139 | ||
140 | config PPC_FPU | |
187a0067 PM |
141 | bool |
142 | default y if PPC64 | |
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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" | |
f9bd170a | 278 | select PPC_I8259 |
033ef338 PM |
279 | select PPC_RTAS |
280 | select RTAS_ERROR_LOGGING | |
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281 | default y |
282 | ||
283 | config PPC_CHRP | |
284 | bool " Common Hardware Reference Platform (CHRP) based machines" | |
285 | depends on PPC_MULTIPLATFORM && PPC32 | |
f9bd170a | 286 | select PPC_I8259 |
25635c71 | 287 | select PPC_INDIRECT_PCI |
033ef338 | 288 | select PPC_RTAS |
830825d6 | 289 | select PPC_MPC106 |
14cf11af PM |
290 | default y |
291 | ||
292 | config PPC_PMAC | |
293 | bool " Apple PowerMac based machines" | |
294 | depends on PPC_MULTIPLATFORM | |
25635c71 | 295 | select PPC_INDIRECT_PCI if PPC32 |
14cf11af PM |
296 | default y |
297 | ||
298 | config PPC_PMAC64 | |
299 | bool | |
300 | depends on PPC_PMAC && POWER4 | |
35499c01 | 301 | select U3_DART |
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302 | default y |
303 | ||
304 | config PPC_PREP | |
305 | bool " PowerPC Reference Platform (PReP) based machines" | |
306 | depends on PPC_MULTIPLATFORM && PPC32 | |
f9bd170a | 307 | select PPC_I8259 |
25635c71 | 308 | select PPC_INDIRECT_PCI |
14cf11af PM |
309 | default y |
310 | ||
311 | config PPC_MAPLE | |
312 | depends on PPC_MULTIPLATFORM && PPC64 | |
313 | bool " Maple 970FX Evaluation Board" | |
314 | select U3_DART | |
315 | select MPIC_BROKEN_U3 | |
316 | default n | |
317 | help | |
318 | This option enables support for the Maple 970FX Evaluation Board. | |
319 | For more informations, refer to <http://www.970eval.com> | |
320 | ||
321 | config PPC_BPA | |
322 | bool " Broadband Processor Architecture" | |
323 | depends on PPC_MULTIPLATFORM && PPC64 | |
033ef338 | 324 | select PPC_RTAS |
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325 | |
326 | config PPC_OF | |
327 | bool | |
187a0067 | 328 | depends on PPC_MULTIPLATFORM # for now |
14cf11af PM |
329 | default y |
330 | ||
331 | config XICS | |
332 | depends on PPC_PSERIES | |
333 | bool | |
334 | default y | |
335 | ||
336 | config U3_DART | |
337 | bool | |
338 | depends on PPC_MULTIPLATFORM && PPC64 | |
339 | default n | |
340 | ||
341 | config MPIC | |
342 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE | |
343 | bool | |
344 | default y | |
345 | ||
033ef338 PM |
346 | config PPC_RTAS |
347 | bool | |
348 | default n | |
349 | ||
350 | config RTAS_ERROR_LOGGING | |
351 | bool | |
352 | depends on PPC_RTAS | |
353 | default n | |
354 | ||
14cf11af PM |
355 | config MPIC_BROKEN_U3 |
356 | bool | |
357 | depends on PPC_MAPLE | |
358 | default y | |
359 | ||
360 | config BPA_IIC | |
361 | depends on PPC_BPA | |
362 | bool | |
363 | default y | |
364 | ||
365 | config IBMVIO | |
366 | depends on PPC_PSERIES || PPC_ISERIES | |
367 | bool | |
368 | default y | |
369 | ||
830825d6 PM |
370 | config PPC_MPC106 |
371 | bool | |
372 | default n | |
373 | ||
14cf11af PM |
374 | source "drivers/cpufreq/Kconfig" |
375 | ||
376 | config CPU_FREQ_PMAC | |
377 | bool "Support for Apple PowerBooks" | |
378 | depends on CPU_FREQ && ADB_PMU && PPC32 | |
379 | select CPU_FREQ_TABLE | |
380 | help | |
381 | This adds support for frequency switching on Apple PowerBooks, | |
382 | this currently includes some models of iBook & Titanium | |
383 | PowerBook. | |
384 | ||
385 | config PPC601_SYNC_FIX | |
386 | bool "Workarounds for PPC601 bugs" | |
387 | depends on 6xx && (PPC_PREP || PPC_PMAC) | |
388 | help | |
389 | Some versions of the PPC601 (the first PowerPC chip) have bugs which | |
390 | mean that extra synchronization instructions are required near | |
391 | certain instructions, typically those that make major changes to the | |
392 | CPU state. These extra instructions reduce performance slightly. | |
393 | If you say N here, these extra instructions will not be included, | |
394 | resulting in a kernel which will run faster but may not run at all | |
395 | on some systems with the PPC601 chip. | |
396 | ||
397 | If in doubt, say Y here. | |
398 | ||
399 | config TAU | |
400 | bool "Thermal Management Support" | |
401 | depends on 6xx | |
402 | help | |
403 | G3 and G4 processors have an on-chip temperature sensor called the | |
404 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die | |
405 | temperature within 2-4 degrees Celsius. This option shows the current | |
406 | on-die temperature in /proc/cpuinfo if the cpu supports it. | |
407 | ||
408 | Unfortunately, on some chip revisions, this sensor is very inaccurate | |
409 | and in some cases, does not work at all, so don't assume the cpu | |
410 | temp is actually what /proc/cpuinfo says it is. | |
411 | ||
412 | config TAU_INT | |
413 | bool "Interrupt driven TAU driver (DANGEROUS)" | |
414 | depends on TAU | |
415 | ---help--- | |
416 | The TAU supports an interrupt driven mode which causes an interrupt | |
417 | whenever the temperature goes out of range. This is the fastest way | |
418 | to get notified the temp has exceeded a range. With this option off, | |
419 | a timer is used to re-check the temperature periodically. | |
420 | ||
421 | However, on some cpus it appears that the TAU interrupt hardware | |
422 | is buggy and can cause a situation which would lead unexplained hard | |
423 | lockups. | |
424 | ||
425 | Unless you are extending the TAU driver, or enjoy kernel/hardware | |
426 | debugging, leave this option off. | |
427 | ||
428 | config TAU_AVERAGE | |
429 | bool "Average high and low temp" | |
430 | depends on TAU | |
431 | ---help--- | |
432 | The TAU hardware can compare the temperature to an upper and lower | |
433 | bound. The default behavior is to show both the upper and lower | |
434 | bound in /proc/cpuinfo. If the range is large, the temperature is | |
435 | either changing a lot, or the TAU hardware is broken (likely on some | |
436 | G4's). If the range is small (around 4 degrees), the temperature is | |
437 | relatively stable. If you say Y here, a single temperature value, | |
438 | halfway between the upper and lower bounds, will be reported in | |
439 | /proc/cpuinfo. | |
440 | ||
441 | If in doubt, say N here. | |
442 | endmenu | |
443 | ||
444 | source arch/powerpc/platforms/embedded6xx/Kconfig | |
445 | source arch/powerpc/platforms/4xx/Kconfig | |
446 | source arch/powerpc/platforms/85xx/Kconfig | |
447 | source arch/powerpc/platforms/8xx/Kconfig | |
448 | ||
449 | menu "Kernel options" | |
450 | ||
451 | config HIGHMEM | |
452 | bool "High memory support" | |
453 | depends on PPC32 | |
454 | ||
455 | source kernel/Kconfig.hz | |
456 | source kernel/Kconfig.preempt | |
457 | source "fs/Kconfig.binfmt" | |
458 | ||
459 | # We optimistically allocate largepages from the VM, so make the limit | |
460 | # large enough (16MB). This badly named config option is actually | |
461 | # max order + 1 | |
462 | config FORCE_MAX_ZONEORDER | |
463 | int | |
464 | depends on PPC64 | |
465 | default "13" | |
466 | ||
467 | config MATH_EMULATION | |
468 | bool "Math emulation" | |
469 | depends on 4xx || 8xx || E200 || E500 | |
470 | ---help--- | |
471 | Some PowerPC chips designed for embedded applications do not have | |
472 | a floating-point unit and therefore do not implement the | |
473 | floating-point instructions in the PowerPC instruction set. If you | |
474 | say Y here, the kernel will include code to emulate a floating-point | |
475 | unit, which will allow programs that use floating-point | |
476 | instructions to run. | |
477 | ||
478 | config IOMMU_VMERGE | |
479 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
480 | depends on EXPERIMENTAL && PPC64 | |
481 | default n | |
482 | help | |
483 | Cause IO segments sent to a device for DMA to be merged virtually | |
484 | by the IOMMU when they happen to have been allocated contiguously. | |
485 | This doesn't add pressure to the IOMMU allocator. However, some | |
486 | drivers don't support getting large merged segments coming back | |
487 | from *_map_sg(). Say Y if you know the drivers you are using are | |
488 | properly handling this case. | |
489 | ||
490 | config HOTPLUG_CPU | |
491 | bool "Support for enabling/disabling CPUs" | |
492 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
493 | ---help--- | |
494 | Say Y here to be able to disable and re-enable individual | |
495 | CPUs at runtime on SMP machines. | |
496 | ||
497 | Say N if you are unsure. | |
498 | ||
499 | config KEXEC | |
500 | bool "kexec system call (EXPERIMENTAL)" | |
501 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
502 | help | |
503 | kexec is a system call that implements the ability to shutdown your | |
504 | current kernel, and to start another kernel. It is like a reboot | |
505 | but it is indepedent of the system firmware. And like a reboot | |
506 | you can start any kernel with it, not just Linux. | |
507 | ||
508 | The name comes from the similiarity to the exec system call. | |
509 | ||
510 | It is an ongoing process to be certain the hardware in a machine | |
511 | is properly shutdown, so do not be surprised if this code does not | |
512 | initially work for you. It may help to enable device hotplugging | |
513 | support. As of this writing the exact hardware interface is | |
514 | strongly in flux, so no good recommendation can be made. | |
515 | ||
516 | config EMBEDDEDBOOT | |
517 | bool | |
518 | depends on 8xx || 8260 | |
519 | default y | |
520 | ||
521 | config PC_KEYBOARD | |
522 | bool "PC PS/2 style Keyboard" | |
523 | depends on 4xx || CPM2 | |
524 | ||
525 | config PPCBUG_NVRAM | |
526 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
527 | default y if PPC_PREP | |
528 | ||
529 | config IRQ_ALL_CPUS | |
530 | bool "Distribute interrupts on all CPUs by default" | |
531 | depends on SMP && !MV64360 | |
532 | help | |
533 | This option gives the kernel permission to distribute IRQs across | |
534 | multiple CPUs. Saying N here will route all IRQs to the first | |
535 | CPU. Generally saying Y is safe, although some problems have been | |
536 | reported with SMP Power Macintoshes with this option enabled. | |
537 | ||
538 | source "arch/powerpc/platforms/pseries/Kconfig" | |
539 | ||
540 | config ARCH_SELECT_MEMORY_MODEL | |
541 | def_bool y | |
542 | depends on PPC64 | |
543 | ||
544 | config ARCH_FLATMEM_ENABLE | |
545 | def_bool y | |
546 | depends on PPC64 && !NUMA | |
547 | ||
548 | config ARCH_DISCONTIGMEM_ENABLE | |
549 | def_bool y | |
550 | depends on SMP && PPC_PSERIES | |
551 | ||
552 | config ARCH_DISCONTIGMEM_DEFAULT | |
553 | def_bool y | |
554 | depends on ARCH_DISCONTIGMEM_ENABLE | |
555 | ||
556 | config ARCH_FLATMEM_ENABLE | |
557 | def_bool y | |
558 | depends on PPC64 | |
559 | ||
560 | config ARCH_SPARSEMEM_ENABLE | |
561 | def_bool y | |
562 | depends on ARCH_DISCONTIGMEM_ENABLE | |
563 | ||
564 | source "mm/Kconfig" | |
565 | ||
566 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
567 | def_bool y | |
568 | depends on NEED_MULTIPLE_NODES | |
569 | ||
570 | # Some NUMA nodes have memory ranges that span | |
571 | # other nodes. Even though a pfn is valid and | |
572 | # between a node's start and end pfns, it may not | |
573 | # reside on that node. | |
574 | # | |
575 | # This is a relatively temporary hack that should | |
576 | # be able to go away when sparsemem is fully in | |
577 | # place | |
578 | ||
579 | config NODES_SPAN_OTHER_NODES | |
580 | def_bool y | |
581 | depends on NEED_MULTIPLE_NODES | |
582 | ||
583 | config NUMA | |
584 | bool "NUMA support" | |
585 | default y if DISCONTIGMEM || SPARSEMEM | |
586 | ||
587 | config SCHED_SMT | |
588 | bool "SMT (Hyperthreading) scheduler support" | |
589 | depends on PPC64 && SMP | |
590 | default off | |
591 | help | |
592 | SMT scheduler support improves the CPU scheduler's decision making | |
593 | when dealing with POWER5 cpus at a cost of slightly increased | |
594 | overhead in some places. If unsure say N here. | |
595 | ||
596 | config PROC_DEVICETREE | |
5f296755 PM |
597 | bool "Support for device tree in /proc" |
598 | depends on PROC_FS | |
14cf11af PM |
599 | help |
600 | This option adds a device-tree directory under /proc which contains | |
601 | an image of the device tree that the kernel copies from Open | |
5f296755 | 602 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af PM |
603 | |
604 | source "arch/powerpc/platforms/prep/Kconfig" | |
605 | ||
606 | config CMDLINE_BOOL | |
607 | bool "Default bootloader kernel arguments" | |
608 | depends on !PPC_ISERIES | |
609 | ||
610 | config CMDLINE | |
611 | string "Initial kernel command string" | |
612 | depends on CMDLINE_BOOL | |
613 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
614 | help | |
615 | On some platforms, there is currently no way for the boot loader to | |
616 | pass arguments to the kernel. For these platforms, you can supply | |
617 | some command-line options at build time by entering them here. In | |
618 | most cases you will need to specify the root device here. | |
619 | ||
620 | if !44x || BROKEN | |
621 | source kernel/power/Kconfig | |
622 | endif | |
623 | ||
624 | config SECCOMP | |
625 | bool "Enable seccomp to safely compute untrusted bytecode" | |
626 | depends on PROC_FS | |
627 | default y | |
628 | help | |
629 | This kernel feature is useful for number crunching applications | |
630 | that may need to compute untrusted bytecode during their | |
631 | execution. By using pipes or other transports made available to | |
632 | the process as file descriptors supporting the read/write | |
633 | syscalls, it's possible to isolate those applications in | |
634 | their own address space using seccomp. Once seccomp is | |
635 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
636 | and the task is only allowed to execute a few safe syscalls | |
637 | defined by each seccomp mode. | |
638 | ||
639 | If unsure, say Y. Only embedded should say N here. | |
640 | ||
641 | endmenu | |
642 | ||
643 | config ISA_DMA_API | |
644 | bool | |
645 | default y | |
646 | ||
647 | menu "Bus options" | |
648 | ||
649 | config ISA | |
650 | bool "Support for ISA-bus hardware" | |
651 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 652 | select PPC_I8259 |
14cf11af PM |
653 | help |
654 | Find out whether you have ISA slots on your motherboard. ISA is the | |
655 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
656 | inside your box. If you have an Apple machine, say N here; if you | |
657 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
658 | you have an embedded board, consult your board documentation. | |
659 | ||
660 | config GENERIC_ISA_DMA | |
661 | bool | |
662 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
663 | default y | |
664 | ||
f9bd170a PM |
665 | config PPC_I8259 |
666 | bool | |
667 | default y if 85xx | |
668 | default n | |
669 | ||
25635c71 PM |
670 | config PPC_INDIRECT_PCI |
671 | bool | |
672 | depends on PCI | |
673 | default y if 40x || 44x || 85xx || 83xx | |
674 | default n | |
675 | ||
14cf11af PM |
676 | config EISA |
677 | bool | |
678 | ||
679 | config SBUS | |
680 | bool | |
681 | ||
682 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any | |
683 | config MCA | |
684 | bool | |
685 | ||
686 | config PCI | |
687 | bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) | |
688 | default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx | |
689 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS | |
690 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
691 | help | |
692 | Find out whether your system includes a PCI bus. PCI is the name of | |
693 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
694 | your box. If you say Y here, the kernel will include drivers and | |
695 | infrastructure code to support PCI bus devices. | |
696 | ||
697 | config PCI_DOMAINS | |
698 | bool | |
699 | default PCI | |
700 | ||
701 | config MPC83xx_PCI2 | |
702 | bool " Supprt for 2nd PCI host controller" | |
703 | depends on PCI && MPC834x | |
704 | default y if MPC834x_SYS | |
705 | ||
706 | config PCI_QSPAN | |
707 | bool "QSpan PCI" | |
708 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 709 | select PPC_I8259 |
14cf11af PM |
710 | help |
711 | Say Y here if you have a system based on a Motorola 8xx-series | |
712 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
713 | ||
714 | config PCI_8260 | |
715 | bool | |
716 | depends on PCI && 8260 | |
25635c71 | 717 | select PPC_INDIRECT_PCI |
14cf11af PM |
718 | default y |
719 | ||
720 | config 8260_PCI9 | |
721 | bool " Enable workaround for MPC826x erratum PCI 9" | |
722 | depends on PCI_8260 && !ADS8272 | |
723 | default y | |
724 | ||
725 | choice | |
726 | prompt " IDMA channel for PCI 9 workaround" | |
727 | depends on 8260_PCI9 | |
728 | ||
729 | config 8260_PCI9_IDMA1 | |
730 | bool "IDMA1" | |
731 | ||
732 | config 8260_PCI9_IDMA2 | |
733 | bool "IDMA2" | |
734 | ||
735 | config 8260_PCI9_IDMA3 | |
736 | bool "IDMA3" | |
737 | ||
738 | config 8260_PCI9_IDMA4 | |
739 | bool "IDMA4" | |
740 | ||
741 | endchoice | |
742 | ||
743 | source "drivers/pci/Kconfig" | |
744 | ||
745 | source "drivers/pcmcia/Kconfig" | |
746 | ||
747 | source "drivers/pci/hotplug/Kconfig" | |
748 | ||
749 | endmenu | |
750 | ||
751 | menu "Advanced setup" | |
752 | depends on PPC32 | |
753 | ||
754 | config ADVANCED_OPTIONS | |
755 | bool "Prompt for advanced kernel configuration options" | |
756 | help | |
757 | This option will enable prompting for a variety of advanced kernel | |
758 | configuration options. These options can cause the kernel to not | |
759 | work if they are set incorrectly, but can be used to optimize certain | |
760 | aspects of kernel memory management. | |
761 | ||
762 | Unless you know what you are doing, say N here. | |
763 | ||
764 | comment "Default settings for advanced configuration options are used" | |
765 | depends on !ADVANCED_OPTIONS | |
766 | ||
767 | config HIGHMEM_START_BOOL | |
768 | bool "Set high memory pool address" | |
769 | depends on ADVANCED_OPTIONS && HIGHMEM | |
770 | help | |
771 | This option allows you to set the base address of the kernel virtual | |
772 | area used to map high memory pages. This can be useful in | |
773 | optimizing the layout of kernel virtual memory. | |
774 | ||
775 | Say N here unless you know what you are doing. | |
776 | ||
777 | config HIGHMEM_START | |
778 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
779 | default "0xfe000000" | |
780 | ||
781 | config LOWMEM_SIZE_BOOL | |
782 | bool "Set maximum low memory" | |
783 | depends on ADVANCED_OPTIONS | |
784 | help | |
785 | This option allows you to set the maximum amount of memory which | |
786 | will be used as "low memory", that is, memory which the kernel can | |
787 | access directly, without having to set up a kernel virtual mapping. | |
788 | This can be useful in optimizing the layout of kernel virtual | |
789 | memory. | |
790 | ||
791 | Say N here unless you know what you are doing. | |
792 | ||
793 | config LOWMEM_SIZE | |
794 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
795 | default "0x30000000" | |
796 | ||
797 | config KERNEL_START_BOOL | |
798 | bool "Set custom kernel base address" | |
799 | depends on ADVANCED_OPTIONS | |
800 | help | |
801 | This option allows you to set the kernel virtual address at which | |
802 | the kernel will map low memory (the kernel image will be linked at | |
803 | this address). This can be useful in optimizing the virtual memory | |
804 | layout of the system. | |
805 | ||
806 | Say N here unless you know what you are doing. | |
807 | ||
808 | config KERNEL_START | |
809 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
810 | default "0xc0000000" | |
811 | ||
812 | config TASK_SIZE_BOOL | |
813 | bool "Set custom user task size" | |
814 | depends on ADVANCED_OPTIONS | |
815 | help | |
816 | This option allows you to set the amount of virtual address space | |
817 | allocated to user tasks. This can be useful in optimizing the | |
818 | virtual memory layout of the system. | |
819 | ||
820 | Say N here unless you know what you are doing. | |
821 | ||
822 | config TASK_SIZE | |
823 | hex "Size of user task space" if TASK_SIZE_BOOL | |
824 | default "0x80000000" | |
825 | ||
826 | config CONSISTENT_START_BOOL | |
827 | bool "Set custom consistent memory pool address" | |
828 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
829 | help | |
830 | This option allows you to set the base virtual address | |
831 | of the the consistent memory pool. This pool of virtual | |
832 | memory is used to make consistent memory allocations. | |
833 | ||
834 | config CONSISTENT_START | |
835 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
836 | default "0xff100000" if NOT_COHERENT_CACHE | |
837 | ||
838 | config CONSISTENT_SIZE_BOOL | |
839 | bool "Set custom consistent memory pool size" | |
840 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
841 | help | |
842 | This option allows you to set the size of the the | |
843 | consistent memory pool. This pool of virtual memory | |
844 | is used to make consistent memory allocations. | |
845 | ||
846 | config CONSISTENT_SIZE | |
847 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
848 | default "0x00200000" if NOT_COHERENT_CACHE | |
849 | ||
850 | config BOOT_LOAD_BOOL | |
851 | bool "Set the boot link/load address" | |
852 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
853 | help | |
854 | This option allows you to set the initial load address of the zImage | |
855 | or zImage.initrd file. This can be useful if you are on a board | |
856 | which has a small amount of memory. | |
857 | ||
858 | Say N here unless you know what you are doing. | |
859 | ||
860 | config BOOT_LOAD | |
861 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
862 | default "0x00400000" if 40x || 8xx || 8260 | |
863 | default "0x01000000" if 44x | |
864 | default "0x00800000" | |
865 | ||
866 | config PIN_TLB | |
867 | bool "Pinned Kernel TLBs (860 ONLY)" | |
868 | depends on ADVANCED_OPTIONS && 8xx | |
869 | endmenu | |
870 | ||
cabb5587 SR |
871 | if PPC64 |
872 | config KERNEL_START | |
873 | hex | |
eeb2d218 | 874 | default "0xc000000000000000" |
cabb5587 SR |
875 | endif |
876 | ||
14cf11af PM |
877 | source "net/Kconfig" |
878 | ||
879 | source "drivers/Kconfig" | |
880 | ||
881 | source "fs/Kconfig" | |
882 | ||
883 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
884 | ||
885 | # XXX source "arch/ppc/8260_io/Kconfig" | |
886 | ||
887 | source "arch/powerpc/platforms/iseries/Kconfig" | |
888 | ||
889 | source "lib/Kconfig" | |
890 | ||
891 | source "arch/powerpc/oprofile/Kconfig" | |
892 | ||
893 | source "arch/powerpc/Kconfig.debug" | |
894 | ||
895 | source "security/Kconfig" | |
896 | ||
897 | config KEYS_COMPAT | |
898 | bool | |
899 | depends on COMPAT && KEYS | |
900 | default y | |
901 | ||
902 | source "crypto/Kconfig" |