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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 | ||
14cf11af PM |
29 | config GENERIC_HARDIRQS |
30 | bool | |
31 | default y | |
32 | ||
33 | config RWSEM_GENERIC_SPINLOCK | |
34 | bool | |
35 | ||
36 | config RWSEM_XCHGADD_ALGORITHM | |
37 | bool | |
38 | default y | |
39 | ||
40 | config GENERIC_CALIBRATE_DELAY | |
41 | bool | |
42 | default y | |
43 | ||
44 | config PPC | |
45 | bool | |
46 | default y | |
47 | ||
48 | config EARLY_PRINTK | |
49 | bool | |
51d3082f | 50 | default y |
14cf11af PM |
51 | |
52 | config COMPAT | |
53 | bool | |
54 | default y if PPC64 | |
55 | ||
56 | config SYSVIPC_COMPAT | |
57 | bool | |
58 | depends on COMPAT && SYSVIPC | |
59 | default y | |
60 | ||
61 | # All PPC32s use generic nvram driver through ppc_md | |
62 | config GENERIC_NVRAM | |
63 | bool | |
64 | default y if PPC32 | |
65 | ||
66 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
67 | bool | |
68 | default y | |
69 | ||
70 | config ARCH_MAY_HAVE_PC_FDC | |
71 | bool | |
72 | default y | |
73 | ||
08264cbc KG |
74 | config PPC_OF |
75 | def_bool y | |
76 | ||
77 | config PPC_UDBG_16550 | |
78 | bool | |
79 | default n | |
80 | ||
08264cbc KG |
81 | config GENERIC_TBSYNC |
82 | bool | |
83 | default y if PPC32 && SMP | |
84 | default n | |
85 | ||
14cf11af PM |
86 | menu "Processor support" |
87 | choice | |
88 | prompt "Processor Type" | |
89 | depends on PPC32 | |
90 | default 6xx | |
91 | ||
08264cbc | 92 | config CLASSIC32 |
14cf11af PM |
93 | bool "6xx/7xx/74xx" |
94 | select PPC_FPU | |
08264cbc | 95 | select 6xx |
14cf11af PM |
96 | help |
97 | There are four families of PowerPC chips supported. The more common | |
98 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | |
99 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | |
100 | embedded versions (403 and 405) and the high end 64 bit Power | |
101 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | |
102 | ||
103 | Unless you are building a kernel for one of the embedded processor | |
104 | systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. | |
105 | Note that the kernel runs in 32-bit mode even on 64-bit chips. | |
106 | ||
107 | config PPC_52xx | |
108 | bool "Freescale 52xx" | |
08264cbc KG |
109 | select 6xx |
110 | select PPC_FPU | |
14cf11af PM |
111 | |
112 | config PPC_82xx | |
113 | bool "Freescale 82xx" | |
08264cbc KG |
114 | select 6xx |
115 | select PPC_FPU | |
14cf11af PM |
116 | |
117 | config PPC_83xx | |
118 | bool "Freescale 83xx" | |
08264cbc KG |
119 | select 6xx |
120 | select FSL_SOC | |
121 | select 83xx | |
122 | select PPC_FPU | |
14cf11af PM |
123 | |
124 | config 40x | |
125 | bool "AMCC 40x" | |
126 | ||
127 | config 44x | |
128 | bool "AMCC 44x" | |
129 | ||
14cf11af PM |
130 | config 8xx |
131 | bool "Freescale 8xx" | |
132 | ||
133 | config E200 | |
134 | bool "Freescale e200" | |
135 | ||
136 | config E500 | |
137 | bool "Freescale e500" | |
138 | endchoice | |
139 | ||
140 | config POWER4_ONLY | |
141 | bool "Optimize for POWER4" | |
187a0067 | 142 | depends on PPC64 |
14cf11af PM |
143 | default n |
144 | ---help--- | |
145 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
146 | The resulting binary will not work on POWER3 or RS64 processors | |
147 | when compiled with binutils 2.15 or later. | |
148 | ||
149 | config POWER3 | |
150 | bool | |
187a0067 | 151 | depends on PPC64 |
14cf11af PM |
152 | default y if !POWER4_ONLY |
153 | ||
154 | config POWER4 | |
187a0067 | 155 | depends on PPC64 |
14cf11af PM |
156 | def_bool y |
157 | ||
08264cbc KG |
158 | config 6xx |
159 | bool | |
160 | ||
161 | # this is temp to handle compat with arch=ppc | |
162 | config 83xx | |
163 | bool | |
164 | ||
14cf11af | 165 | config PPC_FPU |
187a0067 PM |
166 | bool |
167 | default y if PPC64 | |
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168 | |
169 | config BOOKE | |
170 | bool | |
171 | depends on E200 || E500 | |
172 | default y | |
173 | ||
174 | config FSL_BOOKE | |
175 | bool | |
176 | depends on E200 || E500 | |
177 | default y | |
178 | ||
179 | config PTE_64BIT | |
180 | bool | |
181 | depends on 44x || E500 | |
182 | default y if 44x | |
183 | default y if E500 && PHYS_64BIT | |
184 | ||
185 | config PHYS_64BIT | |
186 | bool 'Large physical address support' if E500 | |
187 | depends on 44x || E500 | |
188 | default y if 44x | |
189 | ---help--- | |
190 | This option enables kernel support for larger than 32-bit physical | |
191 | addresses. This features is not be available on all e500 cores. | |
192 | ||
193 | If in doubt, say N here. | |
194 | ||
195 | config ALTIVEC | |
196 | bool "AltiVec Support" | |
08264cbc | 197 | depends on CLASSIC32 || POWER4 |
14cf11af PM |
198 | ---help--- |
199 | This option enables kernel support for the Altivec extensions to the | |
200 | PowerPC processor. The kernel currently supports saving and restoring | |
201 | altivec registers, and turning on the 'altivec enable' bit so user | |
202 | processes can execute altivec instructions. | |
203 | ||
204 | This option is only usefully if you have a processor that supports | |
205 | altivec (G4, otherwise known as 74xx series), but does not have | |
206 | any affect on a non-altivec cpu (it does, however add code to the | |
207 | kernel). | |
208 | ||
209 | If in doubt, say Y here. | |
210 | ||
211 | config SPE | |
212 | bool "SPE Support" | |
213 | depends on E200 || E500 | |
214 | ---help--- | |
215 | This option enables kernel support for the Signal Processing | |
216 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
217 | supports saving and restoring SPE registers, and turning on the | |
218 | 'spe enable' bit so user processes can execute SPE instructions. | |
219 | ||
220 | This option is only useful if you have a processor that supports | |
221 | SPE (e500, otherwise known as 85xx series), but does not have any | |
222 | effect on a non-spe cpu (it does, however add code to the kernel). | |
223 | ||
224 | If in doubt, say Y here. | |
225 | ||
226 | config PPC_STD_MMU | |
227 | bool | |
228 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
229 | default y | |
230 | ||
231 | config PPC_STD_MMU_32 | |
232 | def_bool y | |
233 | depends on PPC_STD_MMU && PPC32 | |
234 | ||
235 | config SMP | |
236 | depends on PPC_STD_MMU | |
237 | bool "Symmetric multi-processing support" | |
238 | ---help--- | |
239 | This enables support for systems with more than one CPU. If you have | |
240 | a system with only one CPU, say N. If you have a system with more | |
241 | than one CPU, say Y. Note that the kernel does not currently | |
242 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
243 | since they have inadequate hardware support for multiprocessor | |
244 | operation. | |
245 | ||
246 | If you say N here, the kernel will run on single and multiprocessor | |
247 | machines, but will use only one CPU of a multiprocessor machine. If | |
248 | you say Y here, the kernel will run on single-processor machines. | |
249 | On a single-processor machine, the kernel will run faster if you say | |
250 | N here. | |
251 | ||
252 | If you don't know what to do here, say N. | |
253 | ||
254 | config NR_CPUS | |
e8a167ac | 255 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
256 | range 2 128 |
257 | depends on SMP | |
258 | default "32" if PPC64 | |
259 | default "4" | |
260 | ||
261 | config NOT_COHERENT_CACHE | |
262 | bool | |
263 | depends on 4xx || 8xx || E200 | |
264 | default y | |
265 | endmenu | |
266 | ||
267 | source "init/Kconfig" | |
268 | ||
269 | menu "Platform support" | |
08264cbc | 270 | depends on PPC64 || CLASSIC32 |
14cf11af PM |
271 | |
272 | choice | |
273 | prompt "Machine type" | |
274 | default PPC_MULTIPLATFORM | |
275 | ||
276 | config PPC_MULTIPLATFORM | |
277 | bool "Generic desktop/server/laptop" | |
278 | help | |
279 | Select this option if configuring for an IBM pSeries or | |
280 | RS/6000 machine, an Apple machine, or a PReP, CHRP, | |
281 | Maple or Cell-based machine. | |
282 | ||
283 | config PPC_ISERIES | |
284 | bool "IBM Legacy iSeries" | |
285 | depends on PPC64 | |
286 | ||
287 | config EMBEDDED6xx | |
288 | bool "Embedded 6xx/7xx/7xxx-based board" | |
5be396b0 | 289 | depends on PPC32 && BROKEN |
14cf11af PM |
290 | |
291 | config APUS | |
292 | bool "Amiga-APUS" | |
293 | depends on PPC32 && BROKEN | |
294 | help | |
295 | Select APUS if configuring for a PowerUP Amiga. | |
296 | More information is available at: | |
297 | <http://linux-apus.sourceforge.net/>. | |
298 | endchoice | |
299 | ||
300 | config PPC_PSERIES | |
301 | depends on PPC_MULTIPLATFORM && PPC64 | |
302 | bool " IBM pSeries & new (POWER5-based) iSeries" | |
f9bd170a | 303 | select PPC_I8259 |
033ef338 PM |
304 | select PPC_RTAS |
305 | select RTAS_ERROR_LOGGING | |
13b8a272 | 306 | select PPC_UDBG_16550 |
14cf11af PM |
307 | default y |
308 | ||
309 | config PPC_CHRP | |
310 | bool " Common Hardware Reference Platform (CHRP) based machines" | |
311 | depends on PPC_MULTIPLATFORM && PPC32 | |
f9bd170a | 312 | select PPC_I8259 |
25635c71 | 313 | select PPC_INDIRECT_PCI |
033ef338 | 314 | select PPC_RTAS |
830825d6 | 315 | select PPC_MPC106 |
13b8a272 | 316 | select PPC_UDBG_16550 |
14cf11af PM |
317 | default y |
318 | ||
319 | config PPC_PMAC | |
320 | bool " Apple PowerMac based machines" | |
321 | depends on PPC_MULTIPLATFORM | |
25635c71 | 322 | select PPC_INDIRECT_PCI if PPC32 |
b6a4ce52 | 323 | select PPC_MPC106 if PPC32 |
14cf11af PM |
324 | default y |
325 | ||
326 | config PPC_PMAC64 | |
327 | bool | |
328 | depends on PPC_PMAC && POWER4 | |
35499c01 | 329 | select U3_DART |
1beb6a7d | 330 | select MPIC_BROKEN_U3 |
8ad200d7 | 331 | select GENERIC_TBSYNC |
14cf11af PM |
332 | default y |
333 | ||
334 | config PPC_PREP | |
335 | bool " PowerPC Reference Platform (PReP) based machines" | |
5be396b0 | 336 | depends on PPC_MULTIPLATFORM && PPC32 && BROKEN |
f9bd170a | 337 | select PPC_I8259 |
25635c71 | 338 | select PPC_INDIRECT_PCI |
13b8a272 | 339 | select PPC_UDBG_16550 |
14cf11af PM |
340 | default y |
341 | ||
342 | config PPC_MAPLE | |
343 | depends on PPC_MULTIPLATFORM && PPC64 | |
344 | bool " Maple 970FX Evaluation Board" | |
345 | select U3_DART | |
346 | select MPIC_BROKEN_U3 | |
8ad200d7 | 347 | select GENERIC_TBSYNC |
13b8a272 | 348 | select PPC_UDBG_16550 |
14cf11af PM |
349 | default n |
350 | help | |
351 | This option enables support for the Maple 970FX Evaluation Board. | |
352 | For more informations, refer to <http://www.970eval.com> | |
353 | ||
f3f66f59 AB |
354 | config PPC_CELL |
355 | bool " Cell Broadband Processor Architecture" | |
14cf11af | 356 | depends on PPC_MULTIPLATFORM && PPC64 |
033ef338 | 357 | select PPC_RTAS |
edf03c1e | 358 | select MMIO_NVRAM |
13b8a272 | 359 | select PPC_UDBG_16550 |
14cf11af | 360 | |
14cf11af PM |
361 | config XICS |
362 | depends on PPC_PSERIES | |
363 | bool | |
364 | default y | |
365 | ||
366 | config U3_DART | |
367 | bool | |
368 | depends on PPC_MULTIPLATFORM && PPC64 | |
369 | default n | |
370 | ||
371 | config MPIC | |
bbd0abda | 372 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP |
14cf11af PM |
373 | bool |
374 | default y | |
375 | ||
033ef338 PM |
376 | config PPC_RTAS |
377 | bool | |
378 | default n | |
379 | ||
380 | config RTAS_ERROR_LOGGING | |
381 | bool | |
382 | depends on PPC_RTAS | |
383 | default n | |
384 | ||
f4fcbbe9 PM |
385 | config RTAS_PROC |
386 | bool "Proc interface to RTAS" | |
e9add2ee | 387 | depends on PPC_RTAS |
f4fcbbe9 PM |
388 | default y |
389 | ||
390 | config RTAS_FLASH | |
391 | tristate "Firmware flash interface" | |
392 | depends on PPC64 && RTAS_PROC | |
e9add2ee | 393 | |
edf03c1e AB |
394 | config MMIO_NVRAM |
395 | bool | |
396 | default n | |
397 | ||
14cf11af PM |
398 | config MPIC_BROKEN_U3 |
399 | bool | |
400 | depends on PPC_MAPLE | |
401 | default y | |
402 | ||
f3f66f59 AB |
403 | config CELL_IIC |
404 | depends on PPC_CELL | |
14cf11af PM |
405 | bool |
406 | default y | |
407 | ||
408 | config IBMVIO | |
409 | depends on PPC_PSERIES || PPC_ISERIES | |
410 | bool | |
411 | default y | |
412 | ||
d7a30103 HS |
413 | config IBMEBUS |
414 | depends on PPC_PSERIES | |
415 | bool "Support for GX bus based adapters" | |
d7a30103 HS |
416 | help |
417 | Bus device driver for GX bus based adapters. | |
418 | ||
830825d6 PM |
419 | config PPC_MPC106 |
420 | bool | |
421 | default n | |
422 | ||
14cf11af PM |
423 | source "drivers/cpufreq/Kconfig" |
424 | ||
425 | config CPU_FREQ_PMAC | |
426 | bool "Support for Apple PowerBooks" | |
427 | depends on CPU_FREQ && ADB_PMU && PPC32 | |
428 | select CPU_FREQ_TABLE | |
429 | help | |
430 | This adds support for frequency switching on Apple PowerBooks, | |
431 | this currently includes some models of iBook & Titanium | |
432 | PowerBook. | |
433 | ||
4350147a BH |
434 | config CPU_FREQ_PMAC64 |
435 | bool "Support for some Apple G5s" | |
436 | depends on CPU_FREQ && PMAC_SMU && PPC64 | |
437 | select CPU_FREQ_TABLE | |
438 | help | |
439 | This adds support for frequency switching on Apple iMac G5, | |
440 | and some of the more recent desktop G5 machines as well. | |
441 | ||
14cf11af PM |
442 | config PPC601_SYNC_FIX |
443 | bool "Workarounds for PPC601 bugs" | |
444 | depends on 6xx && (PPC_PREP || PPC_PMAC) | |
445 | help | |
446 | Some versions of the PPC601 (the first PowerPC chip) have bugs which | |
447 | mean that extra synchronization instructions are required near | |
448 | certain instructions, typically those that make major changes to the | |
449 | CPU state. These extra instructions reduce performance slightly. | |
450 | If you say N here, these extra instructions will not be included, | |
451 | resulting in a kernel which will run faster but may not run at all | |
452 | on some systems with the PPC601 chip. | |
453 | ||
454 | If in doubt, say Y here. | |
455 | ||
456 | config TAU | |
457 | bool "Thermal Management Support" | |
458 | depends on 6xx | |
459 | help | |
460 | G3 and G4 processors have an on-chip temperature sensor called the | |
461 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die | |
462 | temperature within 2-4 degrees Celsius. This option shows the current | |
463 | on-die temperature in /proc/cpuinfo if the cpu supports it. | |
464 | ||
465 | Unfortunately, on some chip revisions, this sensor is very inaccurate | |
466 | and in some cases, does not work at all, so don't assume the cpu | |
467 | temp is actually what /proc/cpuinfo says it is. | |
468 | ||
469 | config TAU_INT | |
470 | bool "Interrupt driven TAU driver (DANGEROUS)" | |
471 | depends on TAU | |
472 | ---help--- | |
473 | The TAU supports an interrupt driven mode which causes an interrupt | |
474 | whenever the temperature goes out of range. This is the fastest way | |
475 | to get notified the temp has exceeded a range. With this option off, | |
476 | a timer is used to re-check the temperature periodically. | |
477 | ||
478 | However, on some cpus it appears that the TAU interrupt hardware | |
479 | is buggy and can cause a situation which would lead unexplained hard | |
480 | lockups. | |
481 | ||
482 | Unless you are extending the TAU driver, or enjoy kernel/hardware | |
483 | debugging, leave this option off. | |
484 | ||
485 | config TAU_AVERAGE | |
486 | bool "Average high and low temp" | |
487 | depends on TAU | |
488 | ---help--- | |
489 | The TAU hardware can compare the temperature to an upper and lower | |
490 | bound. The default behavior is to show both the upper and lower | |
491 | bound in /proc/cpuinfo. If the range is large, the temperature is | |
492 | either changing a lot, or the TAU hardware is broken (likely on some | |
493 | G4's). If the range is small (around 4 degrees), the temperature is | |
494 | relatively stable. If you say Y here, a single temperature value, | |
495 | halfway between the upper and lower bounds, will be reported in | |
496 | /proc/cpuinfo. | |
497 | ||
498 | If in doubt, say N here. | |
499 | endmenu | |
500 | ||
501 | source arch/powerpc/platforms/embedded6xx/Kconfig | |
502 | source arch/powerpc/platforms/4xx/Kconfig | |
08264cbc | 503 | source arch/powerpc/platforms/83xx/Kconfig |
14cf11af PM |
504 | source arch/powerpc/platforms/85xx/Kconfig |
505 | source arch/powerpc/platforms/8xx/Kconfig | |
67207b96 | 506 | source arch/powerpc/platforms/cell/Kconfig |
14cf11af PM |
507 | |
508 | menu "Kernel options" | |
509 | ||
510 | config HIGHMEM | |
511 | bool "High memory support" | |
512 | depends on PPC32 | |
513 | ||
514 | source kernel/Kconfig.hz | |
515 | source kernel/Kconfig.preempt | |
516 | source "fs/Kconfig.binfmt" | |
517 | ||
518 | # We optimistically allocate largepages from the VM, so make the limit | |
519 | # large enough (16MB). This badly named config option is actually | |
520 | # max order + 1 | |
521 | config FORCE_MAX_ZONEORDER | |
522 | int | |
523 | depends on PPC64 | |
02864867 | 524 | default "9" if PPC_64K_PAGES |
14cf11af PM |
525 | default "13" |
526 | ||
527 | config MATH_EMULATION | |
528 | bool "Math emulation" | |
529 | depends on 4xx || 8xx || E200 || E500 | |
530 | ---help--- | |
531 | Some PowerPC chips designed for embedded applications do not have | |
532 | a floating-point unit and therefore do not implement the | |
533 | floating-point instructions in the PowerPC instruction set. If you | |
534 | say Y here, the kernel will include code to emulate a floating-point | |
535 | unit, which will allow programs that use floating-point | |
536 | instructions to run. | |
537 | ||
538 | config IOMMU_VMERGE | |
539 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
540 | depends on EXPERIMENTAL && PPC64 | |
541 | default n | |
542 | help | |
543 | Cause IO segments sent to a device for DMA to be merged virtually | |
544 | by the IOMMU when they happen to have been allocated contiguously. | |
545 | This doesn't add pressure to the IOMMU allocator. However, some | |
546 | drivers don't support getting large merged segments coming back | |
547 | from *_map_sg(). Say Y if you know the drivers you are using are | |
548 | properly handling this case. | |
549 | ||
550 | config HOTPLUG_CPU | |
551 | bool "Support for enabling/disabling CPUs" | |
552 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
553 | ---help--- | |
554 | Say Y here to be able to disable and re-enable individual | |
555 | CPUs at runtime on SMP machines. | |
556 | ||
557 | Say N if you are unsure. | |
558 | ||
559 | config KEXEC | |
560 | bool "kexec system call (EXPERIMENTAL)" | |
561 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
562 | help | |
563 | kexec is a system call that implements the ability to shutdown your | |
564 | current kernel, and to start another kernel. It is like a reboot | |
565 | but it is indepedent of the system firmware. And like a reboot | |
566 | you can start any kernel with it, not just Linux. | |
567 | ||
568 | The name comes from the similiarity to the exec system call. | |
569 | ||
570 | It is an ongoing process to be certain the hardware in a machine | |
571 | is properly shutdown, so do not be surprised if this code does not | |
572 | initially work for you. It may help to enable device hotplugging | |
573 | support. As of this writing the exact hardware interface is | |
574 | strongly in flux, so no good recommendation can be made. | |
575 | ||
e8625d46 HM |
576 | config CRASH_DUMP |
577 | bool "kernel crash dumps (EXPERIMENTAL)" | |
578 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL | |
579 | help | |
580 | Build a kernel suitable for use as a kdump capture kernel. | |
581 | The kernel will be linked at a different address than normal, and | |
582 | so can only be used for Kdump. | |
583 | ||
584 | Don't change this unless you know what you are doing. | |
585 | ||
14cf11af PM |
586 | config EMBEDDEDBOOT |
587 | bool | |
588 | depends on 8xx || 8260 | |
589 | default y | |
590 | ||
591 | config PC_KEYBOARD | |
592 | bool "PC PS/2 style Keyboard" | |
593 | depends on 4xx || CPM2 | |
594 | ||
595 | config PPCBUG_NVRAM | |
596 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
597 | default y if PPC_PREP | |
598 | ||
599 | config IRQ_ALL_CPUS | |
600 | bool "Distribute interrupts on all CPUs by default" | |
601 | depends on SMP && !MV64360 | |
602 | help | |
603 | This option gives the kernel permission to distribute IRQs across | |
604 | multiple CPUs. Saying N here will route all IRQs to the first | |
605 | CPU. Generally saying Y is safe, although some problems have been | |
606 | reported with SMP Power Macintoshes with this option enabled. | |
607 | ||
608 | source "arch/powerpc/platforms/pseries/Kconfig" | |
609 | ||
ffa27b6b AW |
610 | config NUMA |
611 | bool "NUMA support" | |
612 | depends on PPC64 | |
613 | default y if SMP && PPC_PSERIES | |
614 | ||
14cf11af PM |
615 | config ARCH_SELECT_MEMORY_MODEL |
616 | def_bool y | |
617 | depends on PPC64 | |
618 | ||
619 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
620 | def_bool y |
621 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 622 | |
45fb6cea | 623 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 624 | def_bool y |
9100b205 | 625 | depends on PPC64 |
14cf11af | 626 | |
45fb6cea | 627 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 628 | def_bool y |
45fb6cea | 629 | depends on SMP && PPC_PSERIES |
14cf11af PM |
630 | |
631 | source "mm/Kconfig" | |
632 | ||
633 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
634 | def_bool y | |
635 | depends on NEED_MULTIPLE_NODES | |
636 | ||
7e9191da MK |
637 | config ARCH_MEMORY_PROBE |
638 | def_bool y | |
639 | depends on MEMORY_HOTPLUG | |
640 | ||
3c726f8d BH |
641 | config PPC_64K_PAGES |
642 | bool "64k page size" | |
863c84b9 | 643 | depends on PPC64 |
3c726f8d BH |
644 | help |
645 | This option changes the kernel logical page size to 64k. On machines | |
646 | without processor support for 64k pages, the kernel will simulate | |
647 | them by loading each individual 4k page on demand transparently, | |
648 | while on hardware with such support, it will be used to map | |
649 | normal application pages. | |
650 | ||
14cf11af PM |
651 | config SCHED_SMT |
652 | bool "SMT (Hyperthreading) scheduler support" | |
653 | depends on PPC64 && SMP | |
654 | default off | |
655 | help | |
656 | SMT scheduler support improves the CPU scheduler's decision making | |
657 | when dealing with POWER5 cpus at a cost of slightly increased | |
658 | overhead in some places. If unsure say N here. | |
659 | ||
660 | config PROC_DEVICETREE | |
5f296755 PM |
661 | bool "Support for device tree in /proc" |
662 | depends on PROC_FS | |
14cf11af PM |
663 | help |
664 | This option adds a device-tree directory under /proc which contains | |
665 | an image of the device tree that the kernel copies from Open | |
5f296755 | 666 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af PM |
667 | |
668 | source "arch/powerpc/platforms/prep/Kconfig" | |
669 | ||
670 | config CMDLINE_BOOL | |
671 | bool "Default bootloader kernel arguments" | |
672 | depends on !PPC_ISERIES | |
673 | ||
674 | config CMDLINE | |
675 | string "Initial kernel command string" | |
676 | depends on CMDLINE_BOOL | |
677 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
678 | help | |
679 | On some platforms, there is currently no way for the boot loader to | |
680 | pass arguments to the kernel. For these platforms, you can supply | |
681 | some command-line options at build time by entering them here. In | |
682 | most cases you will need to specify the root device here. | |
683 | ||
684 | if !44x || BROKEN | |
685 | source kernel/power/Kconfig | |
686 | endif | |
687 | ||
688 | config SECCOMP | |
689 | bool "Enable seccomp to safely compute untrusted bytecode" | |
690 | depends on PROC_FS | |
691 | default y | |
692 | help | |
693 | This kernel feature is useful for number crunching applications | |
694 | that may need to compute untrusted bytecode during their | |
695 | execution. By using pipes or other transports made available to | |
696 | the process as file descriptors supporting the read/write | |
697 | syscalls, it's possible to isolate those applications in | |
698 | their own address space using seccomp. Once seccomp is | |
699 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
700 | and the task is only allowed to execute a few safe syscalls | |
701 | defined by each seccomp mode. | |
702 | ||
703 | If unsure, say Y. Only embedded should say N here. | |
704 | ||
705 | endmenu | |
706 | ||
707 | config ISA_DMA_API | |
708 | bool | |
709 | default y | |
710 | ||
711 | menu "Bus options" | |
712 | ||
713 | config ISA | |
714 | bool "Support for ISA-bus hardware" | |
715 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 716 | select PPC_I8259 |
14cf11af PM |
717 | help |
718 | Find out whether you have ISA slots on your motherboard. ISA is the | |
719 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
720 | inside your box. If you have an Apple machine, say N here; if you | |
721 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
722 | you have an embedded board, consult your board documentation. | |
723 | ||
724 | config GENERIC_ISA_DMA | |
725 | bool | |
726 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
727 | default y | |
728 | ||
f9bd170a PM |
729 | config PPC_I8259 |
730 | bool | |
731 | default y if 85xx | |
732 | default n | |
733 | ||
25635c71 PM |
734 | config PPC_INDIRECT_PCI |
735 | bool | |
736 | depends on PCI | |
08264cbc | 737 | default y if 40x || 44x || 85xx |
25635c71 PM |
738 | default n |
739 | ||
14cf11af PM |
740 | config EISA |
741 | bool | |
742 | ||
743 | config SBUS | |
744 | bool | |
745 | ||
08264cbc KG |
746 | config FSL_SOC |
747 | bool | |
748 | ||
14cf11af PM |
749 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
750 | config MCA | |
751 | bool | |
752 | ||
753 | config PCI | |
08264cbc KG |
754 | bool "PCI support" if 40x || CPM2 || PPC_83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) |
755 | default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx | |
14cf11af PM |
756 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
757 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
758 | help | |
759 | Find out whether your system includes a PCI bus. PCI is the name of | |
760 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
761 | your box. If you say Y here, the kernel will include drivers and | |
762 | infrastructure code to support PCI bus devices. | |
763 | ||
764 | config PCI_DOMAINS | |
765 | bool | |
766 | default PCI | |
767 | ||
14cf11af PM |
768 | config PCI_QSPAN |
769 | bool "QSpan PCI" | |
770 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 771 | select PPC_I8259 |
14cf11af PM |
772 | help |
773 | Say Y here if you have a system based on a Motorola 8xx-series | |
774 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
775 | ||
776 | config PCI_8260 | |
777 | bool | |
778 | depends on PCI && 8260 | |
25635c71 | 779 | select PPC_INDIRECT_PCI |
14cf11af PM |
780 | default y |
781 | ||
782 | config 8260_PCI9 | |
783 | bool " Enable workaround for MPC826x erratum PCI 9" | |
784 | depends on PCI_8260 && !ADS8272 | |
785 | default y | |
786 | ||
787 | choice | |
788 | prompt " IDMA channel for PCI 9 workaround" | |
789 | depends on 8260_PCI9 | |
790 | ||
791 | config 8260_PCI9_IDMA1 | |
792 | bool "IDMA1" | |
793 | ||
794 | config 8260_PCI9_IDMA2 | |
795 | bool "IDMA2" | |
796 | ||
797 | config 8260_PCI9_IDMA3 | |
798 | bool "IDMA3" | |
799 | ||
800 | config 8260_PCI9_IDMA4 | |
801 | bool "IDMA4" | |
802 | ||
803 | endchoice | |
804 | ||
805 | source "drivers/pci/Kconfig" | |
806 | ||
807 | source "drivers/pcmcia/Kconfig" | |
808 | ||
809 | source "drivers/pci/hotplug/Kconfig" | |
810 | ||
811 | endmenu | |
812 | ||
813 | menu "Advanced setup" | |
814 | depends on PPC32 | |
815 | ||
816 | config ADVANCED_OPTIONS | |
817 | bool "Prompt for advanced kernel configuration options" | |
818 | help | |
819 | This option will enable prompting for a variety of advanced kernel | |
820 | configuration options. These options can cause the kernel to not | |
821 | work if they are set incorrectly, but can be used to optimize certain | |
822 | aspects of kernel memory management. | |
823 | ||
824 | Unless you know what you are doing, say N here. | |
825 | ||
826 | comment "Default settings for advanced configuration options are used" | |
827 | depends on !ADVANCED_OPTIONS | |
828 | ||
829 | config HIGHMEM_START_BOOL | |
830 | bool "Set high memory pool address" | |
831 | depends on ADVANCED_OPTIONS && HIGHMEM | |
832 | help | |
833 | This option allows you to set the base address of the kernel virtual | |
834 | area used to map high memory pages. This can be useful in | |
835 | optimizing the layout of kernel virtual memory. | |
836 | ||
837 | Say N here unless you know what you are doing. | |
838 | ||
839 | config HIGHMEM_START | |
840 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
841 | default "0xfe000000" | |
842 | ||
843 | config LOWMEM_SIZE_BOOL | |
844 | bool "Set maximum low memory" | |
845 | depends on ADVANCED_OPTIONS | |
846 | help | |
847 | This option allows you to set the maximum amount of memory which | |
848 | will be used as "low memory", that is, memory which the kernel can | |
849 | access directly, without having to set up a kernel virtual mapping. | |
850 | This can be useful in optimizing the layout of kernel virtual | |
851 | memory. | |
852 | ||
853 | Say N here unless you know what you are doing. | |
854 | ||
855 | config LOWMEM_SIZE | |
856 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
857 | default "0x30000000" | |
858 | ||
859 | config KERNEL_START_BOOL | |
860 | bool "Set custom kernel base address" | |
861 | depends on ADVANCED_OPTIONS | |
862 | help | |
863 | This option allows you to set the kernel virtual address at which | |
864 | the kernel will map low memory (the kernel image will be linked at | |
865 | this address). This can be useful in optimizing the virtual memory | |
866 | layout of the system. | |
867 | ||
868 | Say N here unless you know what you are doing. | |
869 | ||
870 | config KERNEL_START | |
871 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
872 | default "0xc0000000" | |
873 | ||
874 | config TASK_SIZE_BOOL | |
875 | bool "Set custom user task size" | |
876 | depends on ADVANCED_OPTIONS | |
877 | help | |
878 | This option allows you to set the amount of virtual address space | |
879 | allocated to user tasks. This can be useful in optimizing the | |
880 | virtual memory layout of the system. | |
881 | ||
882 | Say N here unless you know what you are doing. | |
883 | ||
884 | config TASK_SIZE | |
885 | hex "Size of user task space" if TASK_SIZE_BOOL | |
886 | default "0x80000000" | |
887 | ||
888 | config CONSISTENT_START_BOOL | |
889 | bool "Set custom consistent memory pool address" | |
890 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
891 | help | |
892 | This option allows you to set the base virtual address | |
893 | of the the consistent memory pool. This pool of virtual | |
894 | memory is used to make consistent memory allocations. | |
895 | ||
896 | config CONSISTENT_START | |
897 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
898 | default "0xff100000" if NOT_COHERENT_CACHE | |
899 | ||
900 | config CONSISTENT_SIZE_BOOL | |
901 | bool "Set custom consistent memory pool size" | |
902 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
903 | help | |
904 | This option allows you to set the size of the the | |
905 | consistent memory pool. This pool of virtual memory | |
906 | is used to make consistent memory allocations. | |
907 | ||
908 | config CONSISTENT_SIZE | |
909 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
910 | default "0x00200000" if NOT_COHERENT_CACHE | |
911 | ||
912 | config BOOT_LOAD_BOOL | |
913 | bool "Set the boot link/load address" | |
914 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
915 | help | |
916 | This option allows you to set the initial load address of the zImage | |
917 | or zImage.initrd file. This can be useful if you are on a board | |
918 | which has a small amount of memory. | |
919 | ||
920 | Say N here unless you know what you are doing. | |
921 | ||
922 | config BOOT_LOAD | |
923 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
924 | default "0x00400000" if 40x || 8xx || 8260 | |
925 | default "0x01000000" if 44x | |
926 | default "0x00800000" | |
927 | ||
928 | config PIN_TLB | |
929 | bool "Pinned Kernel TLBs (860 ONLY)" | |
930 | depends on ADVANCED_OPTIONS && 8xx | |
931 | endmenu | |
932 | ||
cabb5587 SR |
933 | if PPC64 |
934 | config KERNEL_START | |
935 | hex | |
eeb2d218 | 936 | default "0xc000000000000000" |
cabb5587 SR |
937 | endif |
938 | ||
14cf11af PM |
939 | source "net/Kconfig" |
940 | ||
941 | source "drivers/Kconfig" | |
942 | ||
943 | source "fs/Kconfig" | |
944 | ||
945 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
946 | ||
947 | # XXX source "arch/ppc/8260_io/Kconfig" | |
948 | ||
949 | source "arch/powerpc/platforms/iseries/Kconfig" | |
950 | ||
951 | source "lib/Kconfig" | |
952 | ||
cd6b0762 PP |
953 | menu "Instrumentation Support" |
954 | depends on EXPERIMENTAL | |
955 | ||
14cf11af PM |
956 | source "arch/powerpc/oprofile/Kconfig" |
957 | ||
cd6b0762 PP |
958 | config KPROBES |
959 | bool "Kprobes (EXPERIMENTAL)" | |
7568cb4e | 960 | depends on PPC64 |
cd6b0762 PP |
961 | help |
962 | Kprobes allows you to trap at almost any kernel address and | |
963 | execute a callback function. register_kprobe() establishes | |
964 | a probepoint and specifies the callback. Kprobes is useful | |
965 | for kernel debugging, non-intrusive instrumentation and testing. | |
966 | If in doubt, say "N". | |
967 | endmenu | |
968 | ||
14cf11af PM |
969 | source "arch/powerpc/Kconfig.debug" |
970 | ||
971 | source "security/Kconfig" | |
972 | ||
973 | config KEYS_COMPAT | |
974 | bool | |
975 | depends on COMPAT && KEYS | |
976 | default y | |
977 | ||
978 | source "crypto/Kconfig" |