Commit | Line | Data |
---|---|---|
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 | ||
14cf11af PM |
29 | config GENERIC_HARDIRQS |
30 | bool | |
31 | default y | |
32 | ||
0d7012a9 IM |
33 | config IRQ_PER_CPU |
34 | bool | |
35 | default y | |
36 | ||
14cf11af PM |
37 | config RWSEM_GENERIC_SPINLOCK |
38 | bool | |
39 | ||
40 | config RWSEM_XCHGADD_ALGORITHM | |
41 | bool | |
42 | default y | |
43 | ||
e779b2f9 AM |
44 | config GENERIC_HWEIGHT |
45 | bool | |
46 | default y | |
47 | ||
14cf11af PM |
48 | config GENERIC_CALIBRATE_DELAY |
49 | bool | |
50 | default y | |
51 | ||
0a9cb46a JM |
52 | config GENERIC_FIND_NEXT_BIT |
53 | bool | |
54 | default y | |
55 | ||
14cf11af PM |
56 | config PPC |
57 | bool | |
58 | default y | |
59 | ||
60 | config EARLY_PRINTK | |
61 | bool | |
51d3082f | 62 | default y |
14cf11af PM |
63 | |
64 | config COMPAT | |
65 | bool | |
66 | default y if PPC64 | |
67 | ||
68 | config SYSVIPC_COMPAT | |
69 | bool | |
70 | depends on COMPAT && SYSVIPC | |
71 | default y | |
72 | ||
73 | # All PPC32s use generic nvram driver through ppc_md | |
74 | config GENERIC_NVRAM | |
75 | bool | |
76 | default y if PPC32 | |
77 | ||
78 | config SCHED_NO_NO_OMIT_FRAME_POINTER | |
79 | bool | |
80 | default y | |
81 | ||
82 | config ARCH_MAY_HAVE_PC_FDC | |
83 | bool | |
84 | default y | |
85 | ||
08264cbc KG |
86 | config PPC_OF |
87 | def_bool y | |
88 | ||
89 | config PPC_UDBG_16550 | |
90 | bool | |
91 | default n | |
92 | ||
08264cbc KG |
93 | config GENERIC_TBSYNC |
94 | bool | |
95 | default y if PPC32 && SMP | |
96 | default n | |
97 | ||
e65e1fc2 AV |
98 | config AUDIT_ARCH |
99 | bool | |
100 | default y | |
101 | ||
f4fc4a5b KG |
102 | config DEFAULT_UIMAGE |
103 | bool | |
104 | help | |
105 | Used to allow a board to specify it wants a uImage built by default | |
106 | default n | |
107 | ||
14cf11af PM |
108 | menu "Processor support" |
109 | choice | |
110 | prompt "Processor Type" | |
111 | depends on PPC32 | |
112 | default 6xx | |
113 | ||
08264cbc | 114 | config CLASSIC32 |
14cf11af PM |
115 | bool "6xx/7xx/74xx" |
116 | select PPC_FPU | |
08264cbc | 117 | select 6xx |
14cf11af PM |
118 | help |
119 | There are four families of PowerPC chips supported. The more common | |
120 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded | |
121 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC | |
122 | embedded versions (403 and 405) and the high end 64 bit Power | |
123 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). | |
124 | ||
125 | Unless you are building a kernel for one of the embedded processor | |
126 | systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. | |
127 | Note that the kernel runs in 32-bit mode even on 64-bit chips. | |
128 | ||
129 | config PPC_52xx | |
130 | bool "Freescale 52xx" | |
08264cbc KG |
131 | select 6xx |
132 | select PPC_FPU | |
14cf11af PM |
133 | |
134 | config PPC_82xx | |
135 | bool "Freescale 82xx" | |
08264cbc KG |
136 | select 6xx |
137 | select PPC_FPU | |
14cf11af PM |
138 | |
139 | config PPC_83xx | |
140 | bool "Freescale 83xx" | |
08264cbc KG |
141 | select 6xx |
142 | select FSL_SOC | |
143 | select 83xx | |
144 | select PPC_FPU | |
14cf11af | 145 | |
63dafe57 BB |
146 | config PPC_85xx |
147 | bool "Freescale 85xx" | |
148 | select E500 | |
149 | select FSL_SOC | |
150 | select 85xx | |
151 | ||
c9b484b5 JL |
152 | config PPC_86xx |
153 | bool "Freescale 86xx" | |
154 | select 6xx | |
155 | select FSL_SOC | |
156 | select PPC_FPU | |
157 | select ALTIVEC | |
158 | help | |
159 | The Freescale E600 SoCs have 74xx cores. | |
160 | ||
14cf11af PM |
161 | config 40x |
162 | bool "AMCC 40x" | |
4c75a6f4 | 163 | select PPC_DCR_NATIVE |
14cf11af PM |
164 | |
165 | config 44x | |
166 | bool "AMCC 44x" | |
4c75a6f4 | 167 | select PPC_DCR_NATIVE |
14cf11af | 168 | |
14cf11af PM |
169 | config 8xx |
170 | bool "Freescale 8xx" | |
171 | ||
172 | config E200 | |
173 | bool "Freescale e200" | |
174 | ||
14cf11af PM |
175 | endchoice |
176 | ||
177 | config POWER4_ONLY | |
178 | bool "Optimize for POWER4" | |
187a0067 | 179 | depends on PPC64 |
14cf11af PM |
180 | default n |
181 | ---help--- | |
182 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
183 | The resulting binary will not work on POWER3 or RS64 processors | |
184 | when compiled with binutils 2.15 or later. | |
185 | ||
186 | config POWER3 | |
187 | bool | |
187a0067 | 188 | depends on PPC64 |
14cf11af PM |
189 | default y if !POWER4_ONLY |
190 | ||
191 | config POWER4 | |
187a0067 | 192 | depends on PPC64 |
14cf11af PM |
193 | def_bool y |
194 | ||
08264cbc KG |
195 | config 6xx |
196 | bool | |
197 | ||
198 | # this is temp to handle compat with arch=ppc | |
199 | config 83xx | |
200 | bool | |
201 | ||
63dafe57 BB |
202 | # this is temp to handle compat with arch=ppc |
203 | config 85xx | |
204 | bool | |
205 | ||
206 | config E500 | |
207 | bool | |
208 | ||
14cf11af | 209 | config PPC_FPU |
187a0067 PM |
210 | bool |
211 | default y if PPC64 | |
14cf11af | 212 | |
4c75a6f4 BH |
213 | config PPC_DCR_NATIVE |
214 | bool | |
215 | default n | |
216 | ||
217 | config PPC_DCR_MMIO | |
218 | bool | |
219 | default n | |
220 | ||
221 | config PPC_DCR | |
222 | bool | |
223 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
224 | default y | |
225 | ||
4c9d2800 BH |
226 | config PPC_OF_PLATFORM_PCI |
227 | bool | |
228 | depends on PPC64 # not supported on 32 bits yet | |
229 | default n | |
230 | ||
14cf11af PM |
231 | config BOOKE |
232 | bool | |
233 | depends on E200 || E500 | |
234 | default y | |
235 | ||
236 | config FSL_BOOKE | |
237 | bool | |
238 | depends on E200 || E500 | |
239 | default y | |
240 | ||
241 | config PTE_64BIT | |
242 | bool | |
243 | depends on 44x || E500 | |
244 | default y if 44x | |
245 | default y if E500 && PHYS_64BIT | |
246 | ||
247 | config PHYS_64BIT | |
248 | bool 'Large physical address support' if E500 | |
249 | depends on 44x || E500 | |
250 | default y if 44x | |
251 | ---help--- | |
252 | This option enables kernel support for larger than 32-bit physical | |
253 | addresses. This features is not be available on all e500 cores. | |
254 | ||
255 | If in doubt, say N here. | |
256 | ||
257 | config ALTIVEC | |
258 | bool "AltiVec Support" | |
08264cbc | 259 | depends on CLASSIC32 || POWER4 |
14cf11af PM |
260 | ---help--- |
261 | This option enables kernel support for the Altivec extensions to the | |
262 | PowerPC processor. The kernel currently supports saving and restoring | |
263 | altivec registers, and turning on the 'altivec enable' bit so user | |
264 | processes can execute altivec instructions. | |
265 | ||
266 | This option is only usefully if you have a processor that supports | |
267 | altivec (G4, otherwise known as 74xx series), but does not have | |
268 | any affect on a non-altivec cpu (it does, however add code to the | |
269 | kernel). | |
270 | ||
271 | If in doubt, say Y here. | |
272 | ||
273 | config SPE | |
274 | bool "SPE Support" | |
275 | depends on E200 || E500 | |
63dafe57 | 276 | default y |
14cf11af PM |
277 | ---help--- |
278 | This option enables kernel support for the Signal Processing | |
279 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
280 | supports saving and restoring SPE registers, and turning on the | |
281 | 'spe enable' bit so user processes can execute SPE instructions. | |
282 | ||
283 | This option is only useful if you have a processor that supports | |
284 | SPE (e500, otherwise known as 85xx series), but does not have any | |
285 | effect on a non-spe cpu (it does, however add code to the kernel). | |
286 | ||
287 | If in doubt, say Y here. | |
288 | ||
289 | config PPC_STD_MMU | |
290 | bool | |
291 | depends on 6xx || POWER3 || POWER4 || PPC64 | |
292 | default y | |
293 | ||
294 | config PPC_STD_MMU_32 | |
295 | def_bool y | |
296 | depends on PPC_STD_MMU && PPC32 | |
297 | ||
c6622f63 PM |
298 | config VIRT_CPU_ACCOUNTING |
299 | bool "Deterministic task and CPU time accounting" | |
300 | depends on PPC64 | |
301 | default y | |
302 | help | |
303 | Select this option to enable more accurate task and CPU time | |
304 | accounting. This is done by reading a CPU counter on each | |
305 | kernel entry and exit and on transitions within the kernel | |
306 | between system, softirq and hardirq state, so there is a | |
307 | small performance impact. This also enables accounting of | |
308 | stolen time on logically-partitioned systems running on | |
309 | IBM POWER5-based machines. | |
310 | ||
311 | If in doubt, say Y here. | |
312 | ||
14cf11af PM |
313 | config SMP |
314 | depends on PPC_STD_MMU | |
315 | bool "Symmetric multi-processing support" | |
316 | ---help--- | |
317 | This enables support for systems with more than one CPU. If you have | |
318 | a system with only one CPU, say N. If you have a system with more | |
319 | than one CPU, say Y. Note that the kernel does not currently | |
320 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
321 | since they have inadequate hardware support for multiprocessor | |
322 | operation. | |
323 | ||
324 | If you say N here, the kernel will run on single and multiprocessor | |
325 | machines, but will use only one CPU of a multiprocessor machine. If | |
326 | you say Y here, the kernel will run on single-processor machines. | |
327 | On a single-processor machine, the kernel will run faster if you say | |
328 | N here. | |
329 | ||
330 | If you don't know what to do here, say N. | |
331 | ||
332 | config NR_CPUS | |
e8a167ac | 333 | int "Maximum number of CPUs (2-128)" |
14cf11af PM |
334 | range 2 128 |
335 | depends on SMP | |
336 | default "32" if PPC64 | |
337 | default "4" | |
338 | ||
339 | config NOT_COHERENT_CACHE | |
340 | bool | |
341 | depends on 4xx || 8xx || E200 | |
342 | default y | |
343 | endmenu | |
344 | ||
345 | source "init/Kconfig" | |
346 | ||
347 | menu "Platform support" | |
08264cbc | 348 | depends on PPC64 || CLASSIC32 |
14cf11af PM |
349 | |
350 | choice | |
351 | prompt "Machine type" | |
352 | default PPC_MULTIPLATFORM | |
353 | ||
354 | config PPC_MULTIPLATFORM | |
355 | bool "Generic desktop/server/laptop" | |
356 | help | |
357 | Select this option if configuring for an IBM pSeries or | |
358 | RS/6000 machine, an Apple machine, or a PReP, CHRP, | |
359 | Maple or Cell-based machine. | |
360 | ||
14cf11af PM |
361 | config EMBEDDED6xx |
362 | bool "Embedded 6xx/7xx/7xxx-based board" | |
c5d56332 | 363 | depends on PPC32 && (BROKEN||BROKEN_ON_SMP) |
14cf11af PM |
364 | |
365 | config APUS | |
366 | bool "Amiga-APUS" | |
367 | depends on PPC32 && BROKEN | |
368 | help | |
369 | Select APUS if configuring for a PowerUP Amiga. | |
370 | More information is available at: | |
371 | <http://linux-apus.sourceforge.net/>. | |
372 | endchoice | |
373 | ||
98658538 LY |
374 | config QUICC_ENGINE |
375 | bool | |
376 | depends on PPC_MPC836x || PPC_MPC832x | |
377 | default y | |
378 | help | |
379 | The QUICC Engine (QE) is a new generation of communications | |
380 | coprocessors on Freescale embedded CPUs (akin to CPM in older chips). | |
381 | Selecting this option means that you wish to build a kernel | |
382 | for a machine with a QE coprocessor. | |
383 | ||
14cf11af PM |
384 | config PPC_PSERIES |
385 | depends on PPC_MULTIPLATFORM && PPC64 | |
4a3ecc62 | 386 | bool "IBM pSeries & new (POWER5-based) iSeries" |
7233593b | 387 | select MPIC |
f9bd170a | 388 | select PPC_I8259 |
033ef338 PM |
389 | select PPC_RTAS |
390 | select RTAS_ERROR_LOGGING | |
13b8a272 | 391 | select PPC_UDBG_16550 |
14cf11af PM |
392 | default y |
393 | ||
a542dbd3 SR |
394 | config PPC_ISERIES |
395 | bool "IBM Legacy iSeries" | |
396 | depends on PPC_MULTIPLATFORM && PPC64 | |
4cb3cee0 | 397 | select PPC_INDIRECT_IO |
a542dbd3 | 398 | |
14cf11af | 399 | config PPC_CHRP |
4a3ecc62 | 400 | bool "Common Hardware Reference Platform (CHRP) based machines" |
14cf11af | 401 | depends on PPC_MULTIPLATFORM && PPC32 |
7233593b | 402 | select MPIC |
f9bd170a | 403 | select PPC_I8259 |
25635c71 | 404 | select PPC_INDIRECT_PCI |
033ef338 | 405 | select PPC_RTAS |
830825d6 | 406 | select PPC_MPC106 |
13b8a272 | 407 | select PPC_UDBG_16550 |
14cf11af PM |
408 | default y |
409 | ||
c37858d3 ND |
410 | config PPC_EFIKA |
411 | bool "bPlan Efika 5k2. MPC5200B based computer" | |
412 | depends on PPC_MULTIPLATFORM && PPC32 | |
413 | select PPC_RTAS | |
414 | select RTAS_PROC | |
415 | select PPC_MPC52xx | |
416 | default y | |
417 | ||
14cf11af | 418 | config PPC_PMAC |
4a3ecc62 | 419 | bool "Apple PowerMac based machines" |
14cf11af | 420 | depends on PPC_MULTIPLATFORM |
7233593b | 421 | select MPIC |
25635c71 | 422 | select PPC_INDIRECT_PCI if PPC32 |
b6a4ce52 | 423 | select PPC_MPC106 if PPC32 |
14cf11af PM |
424 | default y |
425 | ||
426 | config PPC_PMAC64 | |
427 | bool | |
428 | depends on PPC_PMAC && POWER4 | |
7233593b | 429 | select MPIC |
35499c01 | 430 | select U3_DART |
1beb6a7d | 431 | select MPIC_BROKEN_U3 |
8ad200d7 | 432 | select GENERIC_TBSYNC |
f39224a8 | 433 | select PPC_970_NAP |
14cf11af PM |
434 | default y |
435 | ||
436 | config PPC_PREP | |
4a3ecc62 | 437 | bool "PowerPC Reference Platform (PReP) based machines" |
5be396b0 | 438 | depends on PPC_MULTIPLATFORM && PPC32 && BROKEN |
7233593b | 439 | select MPIC |
f9bd170a | 440 | select PPC_I8259 |
25635c71 | 441 | select PPC_INDIRECT_PCI |
13b8a272 | 442 | select PPC_UDBG_16550 |
14cf11af PM |
443 | default y |
444 | ||
445 | config PPC_MAPLE | |
446 | depends on PPC_MULTIPLATFORM && PPC64 | |
4a3ecc62 | 447 | bool "Maple 970FX Evaluation Board" |
7233593b | 448 | select MPIC |
14cf11af PM |
449 | select U3_DART |
450 | select MPIC_BROKEN_U3 | |
8ad200d7 | 451 | select GENERIC_TBSYNC |
13b8a272 | 452 | select PPC_UDBG_16550 |
f39224a8 | 453 | select PPC_970_NAP |
14cf11af PM |
454 | default n |
455 | help | |
456 | This option enables support for the Maple 970FX Evaluation Board. | |
3cb2fccc | 457 | For more information, refer to <http://www.970eval.com> |
14cf11af | 458 | |
1e76875e OJ |
459 | config PPC_PASEMI |
460 | depends on PPC_MULTIPLATFORM && PPC64 | |
461 | bool "PA Semi SoC-based platforms" | |
462 | default n | |
463 | select MPIC | |
464 | select PPC_UDBG_16550 | |
465 | select GENERIC_TBSYNC | |
466 | help | |
467 | This option enables support for PA Semi's PWRficient line | |
468 | of SoC processors, including PA6T-1682M | |
469 | ||
f3f66f59 | 470 | config PPC_CELL |
c01ea72a GL |
471 | bool |
472 | default n | |
473 | ||
474 | config PPC_CELL_NATIVE | |
475 | bool | |
476 | select PPC_CELL | |
4c75a6f4 | 477 | select PPC_DCR_MMIO |
4c9d2800 | 478 | select PPC_OF_PLATFORM_PCI |
014da7ff | 479 | select PPC_INDIRECT_IO |
21fb5a1d | 480 | select MPIC |
c01ea72a GL |
481 | default n |
482 | ||
483 | config PPC_IBM_CELL_BLADE | |
f127a2b5 | 484 | bool "IBM Cell Blade" |
14cf11af | 485 | depends on PPC_MULTIPLATFORM && PPC64 |
c01ea72a | 486 | select PPC_CELL_NATIVE |
033ef338 | 487 | select PPC_RTAS |
edf03c1e | 488 | select MMIO_NVRAM |
13b8a272 | 489 | select PPC_UDBG_16550 |
94b60ec1 | 490 | select UDBG_RTAS_CONSOLE |
14cf11af | 491 | |
cc46bb98 | 492 | config UDBG_RTAS_CONSOLE |
9a2ded55 MN |
493 | bool "RTAS based debug console" |
494 | depends on PPC_RTAS | |
cc46bb98 | 495 | default n |
14cf11af | 496 | |
14cf11af PM |
497 | config XICS |
498 | depends on PPC_PSERIES | |
499 | bool | |
500 | default y | |
501 | ||
502 | config U3_DART | |
503 | bool | |
504 | depends on PPC_MULTIPLATFORM && PPC64 | |
505 | default n | |
506 | ||
033ef338 PM |
507 | config PPC_RTAS |
508 | bool | |
509 | default n | |
510 | ||
511 | config RTAS_ERROR_LOGGING | |
512 | bool | |
513 | depends on PPC_RTAS | |
514 | default n | |
515 | ||
f4fcbbe9 PM |
516 | config RTAS_PROC |
517 | bool "Proc interface to RTAS" | |
e9add2ee | 518 | depends on PPC_RTAS |
f4fcbbe9 PM |
519 | default y |
520 | ||
521 | config RTAS_FLASH | |
522 | tristate "Firmware flash interface" | |
523 | depends on PPC64 && RTAS_PROC | |
e9add2ee | 524 | |
edf03c1e AB |
525 | config MMIO_NVRAM |
526 | bool | |
527 | default n | |
528 | ||
14cf11af PM |
529 | config MPIC_BROKEN_U3 |
530 | bool | |
531 | depends on PPC_MAPLE | |
532 | default y | |
533 | ||
14cf11af PM |
534 | config IBMVIO |
535 | depends on PPC_PSERIES || PPC_ISERIES | |
536 | bool | |
537 | default y | |
538 | ||
d7a30103 HS |
539 | config IBMEBUS |
540 | depends on PPC_PSERIES | |
541 | bool "Support for GX bus based adapters" | |
d7a30103 HS |
542 | help |
543 | Bus device driver for GX bus based adapters. | |
544 | ||
830825d6 PM |
545 | config PPC_MPC106 |
546 | bool | |
547 | default n | |
548 | ||
f39224a8 PM |
549 | config PPC_970_NAP |
550 | bool | |
551 | default n | |
552 | ||
4cb3cee0 BH |
553 | config PPC_INDIRECT_IO |
554 | bool | |
555 | select GENERIC_IOMAP | |
556 | default n | |
557 | ||
558 | config GENERIC_IOMAP | |
559 | bool | |
560 | default n | |
561 | ||
14cf11af PM |
562 | source "drivers/cpufreq/Kconfig" |
563 | ||
564 | config CPU_FREQ_PMAC | |
565 | bool "Support for Apple PowerBooks" | |
566 | depends on CPU_FREQ && ADB_PMU && PPC32 | |
567 | select CPU_FREQ_TABLE | |
568 | help | |
569 | This adds support for frequency switching on Apple PowerBooks, | |
570 | this currently includes some models of iBook & Titanium | |
571 | PowerBook. | |
572 | ||
4350147a BH |
573 | config CPU_FREQ_PMAC64 |
574 | bool "Support for some Apple G5s" | |
7ed14c21 | 575 | depends on CPU_FREQ && PPC64 |
4350147a BH |
576 | select CPU_FREQ_TABLE |
577 | help | |
578 | This adds support for frequency switching on Apple iMac G5, | |
579 | and some of the more recent desktop G5 machines as well. | |
580 | ||
14cf11af PM |
581 | config PPC601_SYNC_FIX |
582 | bool "Workarounds for PPC601 bugs" | |
583 | depends on 6xx && (PPC_PREP || PPC_PMAC) | |
584 | help | |
585 | Some versions of the PPC601 (the first PowerPC chip) have bugs which | |
586 | mean that extra synchronization instructions are required near | |
587 | certain instructions, typically those that make major changes to the | |
588 | CPU state. These extra instructions reduce performance slightly. | |
589 | If you say N here, these extra instructions will not be included, | |
590 | resulting in a kernel which will run faster but may not run at all | |
591 | on some systems with the PPC601 chip. | |
592 | ||
593 | If in doubt, say Y here. | |
594 | ||
595 | config TAU | |
9b781727 | 596 | bool "On-chip CPU temperature sensor support" |
14cf11af PM |
597 | depends on 6xx |
598 | help | |
599 | G3 and G4 processors have an on-chip temperature sensor called the | |
600 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die | |
601 | temperature within 2-4 degrees Celsius. This option shows the current | |
602 | on-die temperature in /proc/cpuinfo if the cpu supports it. | |
603 | ||
604 | Unfortunately, on some chip revisions, this sensor is very inaccurate | |
9b781727 | 605 | and in many cases, does not work at all, so don't assume the cpu |
14cf11af PM |
606 | temp is actually what /proc/cpuinfo says it is. |
607 | ||
608 | config TAU_INT | |
609 | bool "Interrupt driven TAU driver (DANGEROUS)" | |
610 | depends on TAU | |
611 | ---help--- | |
612 | The TAU supports an interrupt driven mode which causes an interrupt | |
613 | whenever the temperature goes out of range. This is the fastest way | |
614 | to get notified the temp has exceeded a range. With this option off, | |
615 | a timer is used to re-check the temperature periodically. | |
616 | ||
617 | However, on some cpus it appears that the TAU interrupt hardware | |
618 | is buggy and can cause a situation which would lead unexplained hard | |
619 | lockups. | |
620 | ||
621 | Unless you are extending the TAU driver, or enjoy kernel/hardware | |
622 | debugging, leave this option off. | |
623 | ||
624 | config TAU_AVERAGE | |
625 | bool "Average high and low temp" | |
626 | depends on TAU | |
627 | ---help--- | |
628 | The TAU hardware can compare the temperature to an upper and lower | |
629 | bound. The default behavior is to show both the upper and lower | |
630 | bound in /proc/cpuinfo. If the range is large, the temperature is | |
631 | either changing a lot, or the TAU hardware is broken (likely on some | |
632 | G4's). If the range is small (around 4 degrees), the temperature is | |
633 | relatively stable. If you say Y here, a single temperature value, | |
634 | halfway between the upper and lower bounds, will be reported in | |
635 | /proc/cpuinfo. | |
636 | ||
637 | If in doubt, say N here. | |
c2201536 | 638 | |
14cf11af PM |
639 | endmenu |
640 | ||
641 | source arch/powerpc/platforms/embedded6xx/Kconfig | |
642 | source arch/powerpc/platforms/4xx/Kconfig | |
ed943c1f | 643 | source arch/powerpc/platforms/82xx/Kconfig |
08264cbc | 644 | source arch/powerpc/platforms/83xx/Kconfig |
14cf11af | 645 | source arch/powerpc/platforms/85xx/Kconfig |
c9b484b5 | 646 | source arch/powerpc/platforms/86xx/Kconfig |
14cf11af | 647 | source arch/powerpc/platforms/8xx/Kconfig |
67207b96 | 648 | source arch/powerpc/platforms/cell/Kconfig |
14cf11af PM |
649 | |
650 | menu "Kernel options" | |
651 | ||
652 | config HIGHMEM | |
653 | bool "High memory support" | |
654 | depends on PPC32 | |
655 | ||
656 | source kernel/Kconfig.hz | |
657 | source kernel/Kconfig.preempt | |
658 | source "fs/Kconfig.binfmt" | |
659 | ||
660 | # We optimistically allocate largepages from the VM, so make the limit | |
661 | # large enough (16MB). This badly named config option is actually | |
662 | # max order + 1 | |
663 | config FORCE_MAX_ZONEORDER | |
664 | int | |
665 | depends on PPC64 | |
02864867 | 666 | default "9" if PPC_64K_PAGES |
14cf11af PM |
667 | default "13" |
668 | ||
669 | config MATH_EMULATION | |
670 | bool "Math emulation" | |
671 | depends on 4xx || 8xx || E200 || E500 | |
672 | ---help--- | |
673 | Some PowerPC chips designed for embedded applications do not have | |
674 | a floating-point unit and therefore do not implement the | |
675 | floating-point instructions in the PowerPC instruction set. If you | |
676 | say Y here, the kernel will include code to emulate a floating-point | |
677 | unit, which will allow programs that use floating-point | |
678 | instructions to run. | |
679 | ||
680 | config IOMMU_VMERGE | |
681 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" | |
682 | depends on EXPERIMENTAL && PPC64 | |
683 | default n | |
684 | help | |
685 | Cause IO segments sent to a device for DMA to be merged virtually | |
686 | by the IOMMU when they happen to have been allocated contiguously. | |
687 | This doesn't add pressure to the IOMMU allocator. However, some | |
688 | drivers don't support getting large merged segments coming back | |
689 | from *_map_sg(). Say Y if you know the drivers you are using are | |
690 | properly handling this case. | |
691 | ||
692 | config HOTPLUG_CPU | |
693 | bool "Support for enabling/disabling CPUs" | |
694 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
695 | ---help--- | |
696 | Say Y here to be able to disable and re-enable individual | |
697 | CPUs at runtime on SMP machines. | |
698 | ||
699 | Say N if you are unsure. | |
700 | ||
cc57637b YG |
701 | config ARCH_ENABLE_MEMORY_HOTPLUG |
702 | def_bool y | |
703 | ||
14cf11af PM |
704 | config KEXEC |
705 | bool "kexec system call (EXPERIMENTAL)" | |
706 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL | |
707 | help | |
708 | kexec is a system call that implements the ability to shutdown your | |
709 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 710 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
711 | you can start any kernel with it, not just Linux. |
712 | ||
1f1332f7 | 713 | The name comes from the similarity to the exec system call. |
14cf11af PM |
714 | |
715 | It is an ongoing process to be certain the hardware in a machine | |
716 | is properly shutdown, so do not be surprised if this code does not | |
717 | initially work for you. It may help to enable device hotplugging | |
718 | support. As of this writing the exact hardware interface is | |
719 | strongly in flux, so no good recommendation can be made. | |
720 | ||
e8625d46 | 721 | config CRASH_DUMP |
cd9c99d7 | 722 | bool "Build a kdump crash kernel (EXPERIMENTAL)" |
e8625d46 HM |
723 | depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL |
724 | help | |
725 | Build a kernel suitable for use as a kdump capture kernel. | |
726 | The kernel will be linked at a different address than normal, and | |
727 | so can only be used for Kdump. | |
728 | ||
729 | Don't change this unless you know what you are doing. | |
730 | ||
14cf11af PM |
731 | config EMBEDDEDBOOT |
732 | bool | |
733 | depends on 8xx || 8260 | |
734 | default y | |
735 | ||
736 | config PC_KEYBOARD | |
737 | bool "PC PS/2 style Keyboard" | |
738 | depends on 4xx || CPM2 | |
739 | ||
740 | config PPCBUG_NVRAM | |
741 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
742 | default y if PPC_PREP | |
743 | ||
744 | config IRQ_ALL_CPUS | |
745 | bool "Distribute interrupts on all CPUs by default" | |
746 | depends on SMP && !MV64360 | |
747 | help | |
748 | This option gives the kernel permission to distribute IRQs across | |
749 | multiple CPUs. Saying N here will route all IRQs to the first | |
750 | CPU. Generally saying Y is safe, although some problems have been | |
751 | reported with SMP Power Macintoshes with this option enabled. | |
752 | ||
753 | source "arch/powerpc/platforms/pseries/Kconfig" | |
754 | ||
ffa27b6b AW |
755 | config NUMA |
756 | bool "NUMA support" | |
757 | depends on PPC64 | |
758 | default y if SMP && PPC_PSERIES | |
759 | ||
c80d79d7 YG |
760 | config NODES_SHIFT |
761 | int | |
762 | default "4" | |
763 | depends on NEED_MULTIPLE_NODES | |
764 | ||
14cf11af PM |
765 | config ARCH_SELECT_MEMORY_MODEL |
766 | def_bool y | |
767 | depends on PPC64 | |
768 | ||
769 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
770 | def_bool y |
771 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 772 | |
45fb6cea | 773 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 774 | def_bool y |
9100b205 | 775 | depends on PPC64 |
14cf11af | 776 | |
45fb6cea | 777 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 778 | def_bool y |
36b600f2 | 779 | depends on (SMP && PPC_PSERIES) || PPC_CELL |
14cf11af | 780 | |
c67c3cb4 | 781 | config ARCH_POPULATES_NODE_MAP |
14cf11af | 782 | def_bool y |
c67c3cb4 MG |
783 | |
784 | source "mm/Kconfig" | |
14cf11af | 785 | |
7e9191da MK |
786 | config ARCH_MEMORY_PROBE |
787 | def_bool y | |
788 | depends on MEMORY_HOTPLUG | |
789 | ||
75167957 AW |
790 | # Some NUMA nodes have memory ranges that span |
791 | # other nodes. Even though a pfn is valid and | |
792 | # between a node's start and end pfns, it may not | |
793 | # reside on that node. See memmap_init_zone() | |
794 | # for details. | |
795 | config NODES_SPAN_OTHER_NODES | |
796 | def_bool y | |
797 | depends on NEED_MULTIPLE_NODES | |
798 | ||
3c726f8d BH |
799 | config PPC_64K_PAGES |
800 | bool "64k page size" | |
863c84b9 | 801 | depends on PPC64 |
3c726f8d BH |
802 | help |
803 | This option changes the kernel logical page size to 64k. On machines | |
804 | without processor support for 64k pages, the kernel will simulate | |
805 | them by loading each individual 4k page on demand transparently, | |
806 | while on hardware with such support, it will be used to map | |
807 | normal application pages. | |
808 | ||
14cf11af PM |
809 | config SCHED_SMT |
810 | bool "SMT (Hyperthreading) scheduler support" | |
811 | depends on PPC64 && SMP | |
14cf11af PM |
812 | help |
813 | SMT scheduler support improves the CPU scheduler's decision making | |
814 | when dealing with POWER5 cpus at a cost of slightly increased | |
815 | overhead in some places. If unsure say N here. | |
816 | ||
817 | config PROC_DEVICETREE | |
5f296755 PM |
818 | bool "Support for device tree in /proc" |
819 | depends on PROC_FS | |
14cf11af PM |
820 | help |
821 | This option adds a device-tree directory under /proc which contains | |
822 | an image of the device tree that the kernel copies from Open | |
5f296755 | 823 | Firmware or other boot firmware. If unsure, say Y here. |
14cf11af PM |
824 | |
825 | source "arch/powerpc/platforms/prep/Kconfig" | |
826 | ||
827 | config CMDLINE_BOOL | |
828 | bool "Default bootloader kernel arguments" | |
829 | depends on !PPC_ISERIES | |
830 | ||
831 | config CMDLINE | |
832 | string "Initial kernel command string" | |
833 | depends on CMDLINE_BOOL | |
834 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | |
835 | help | |
836 | On some platforms, there is currently no way for the boot loader to | |
837 | pass arguments to the kernel. For these platforms, you can supply | |
838 | some command-line options at build time by entering them here. In | |
839 | most cases you will need to specify the root device here. | |
840 | ||
841 | if !44x || BROKEN | |
842 | source kernel/power/Kconfig | |
843 | endif | |
844 | ||
845 | config SECCOMP | |
846 | bool "Enable seccomp to safely compute untrusted bytecode" | |
847 | depends on PROC_FS | |
848 | default y | |
849 | help | |
850 | This kernel feature is useful for number crunching applications | |
851 | that may need to compute untrusted bytecode during their | |
852 | execution. By using pipes or other transports made available to | |
853 | the process as file descriptors supporting the read/write | |
854 | syscalls, it's possible to isolate those applications in | |
855 | their own address space using seccomp. Once seccomp is | |
856 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
857 | and the task is only allowed to execute a few safe syscalls | |
858 | defined by each seccomp mode. | |
859 | ||
860 | If unsure, say Y. Only embedded should say N here. | |
861 | ||
862 | endmenu | |
863 | ||
864 | config ISA_DMA_API | |
865 | bool | |
866 | default y | |
867 | ||
868 | menu "Bus options" | |
869 | ||
870 | config ISA | |
871 | bool "Support for ISA-bus hardware" | |
872 | depends on PPC_PREP || PPC_CHRP | |
f9bd170a | 873 | select PPC_I8259 |
14cf11af PM |
874 | help |
875 | Find out whether you have ISA slots on your motherboard. ISA is the | |
876 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
877 | inside your box. If you have an Apple machine, say N here; if you | |
878 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If | |
879 | you have an embedded board, consult your board documentation. | |
880 | ||
881 | config GENERIC_ISA_DMA | |
882 | bool | |
883 | depends on PPC64 || POWER4 || 6xx && !CPM2 | |
884 | default y | |
885 | ||
7233593b ZR |
886 | config MPIC |
887 | bool | |
888 | default n | |
889 | ||
890 | config MPIC_WEIRD | |
891 | bool | |
892 | default n | |
893 | ||
f9bd170a PM |
894 | config PPC_I8259 |
895 | bool | |
f9bd170a PM |
896 | default n |
897 | ||
25635c71 PM |
898 | config PPC_INDIRECT_PCI |
899 | bool | |
900 | depends on PCI | |
63dafe57 | 901 | default y if 40x || 44x |
25635c71 PM |
902 | default n |
903 | ||
14cf11af PM |
904 | config EISA |
905 | bool | |
906 | ||
907 | config SBUS | |
908 | bool | |
909 | ||
08264cbc KG |
910 | config FSL_SOC |
911 | bool | |
912 | ||
14cf11af PM |
913 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
914 | config MCA | |
915 | bool | |
916 | ||
917 | config PCI | |
53158620 JL |
918 | bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ |
919 | || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) || MPC7448HPC2 | |
920 | default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \ | |
921 | && !PPC_85xx && !PPC_86xx | |
14cf11af PM |
922 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
923 | default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
924 | help | |
925 | Find out whether your system includes a PCI bus. PCI is the name of | |
926 | a bus system, i.e. the way the CPU talks to the other stuff inside | |
927 | your box. If you say Y here, the kernel will include drivers and | |
928 | infrastructure code to support PCI bus devices. | |
929 | ||
930 | config PCI_DOMAINS | |
931 | bool | |
932 | default PCI | |
933 | ||
14cf11af PM |
934 | config PCI_QSPAN |
935 | bool "QSpan PCI" | |
936 | depends on !4xx && !CPM2 && 8xx | |
f9bd170a | 937 | select PPC_I8259 |
14cf11af PM |
938 | help |
939 | Say Y here if you have a system based on a Motorola 8xx-series | |
940 | embedded processor with a QSPAN PCI interface, otherwise say N. | |
941 | ||
942 | config PCI_8260 | |
943 | bool | |
944 | depends on PCI && 8260 | |
25635c71 | 945 | select PPC_INDIRECT_PCI |
14cf11af PM |
946 | default y |
947 | ||
948 | config 8260_PCI9 | |
4a3ecc62 | 949 | bool "Enable workaround for MPC826x erratum PCI 9" |
14cf11af PM |
950 | depends on PCI_8260 && !ADS8272 |
951 | default y | |
952 | ||
953 | choice | |
4a3ecc62 | 954 | prompt "IDMA channel for PCI 9 workaround" |
14cf11af PM |
955 | depends on 8260_PCI9 |
956 | ||
957 | config 8260_PCI9_IDMA1 | |
958 | bool "IDMA1" | |
959 | ||
960 | config 8260_PCI9_IDMA2 | |
961 | bool "IDMA2" | |
962 | ||
963 | config 8260_PCI9_IDMA3 | |
964 | bool "IDMA3" | |
965 | ||
966 | config 8260_PCI9_IDMA4 | |
967 | bool "IDMA4" | |
968 | ||
969 | endchoice | |
970 | ||
bb53bb3d JM |
971 | source "drivers/pci/pcie/Kconfig" |
972 | ||
14cf11af PM |
973 | source "drivers/pci/Kconfig" |
974 | ||
975 | source "drivers/pcmcia/Kconfig" | |
976 | ||
977 | source "drivers/pci/hotplug/Kconfig" | |
978 | ||
979 | endmenu | |
980 | ||
981 | menu "Advanced setup" | |
982 | depends on PPC32 | |
983 | ||
984 | config ADVANCED_OPTIONS | |
985 | bool "Prompt for advanced kernel configuration options" | |
986 | help | |
987 | This option will enable prompting for a variety of advanced kernel | |
988 | configuration options. These options can cause the kernel to not | |
989 | work if they are set incorrectly, but can be used to optimize certain | |
990 | aspects of kernel memory management. | |
991 | ||
992 | Unless you know what you are doing, say N here. | |
993 | ||
994 | comment "Default settings for advanced configuration options are used" | |
995 | depends on !ADVANCED_OPTIONS | |
996 | ||
997 | config HIGHMEM_START_BOOL | |
998 | bool "Set high memory pool address" | |
999 | depends on ADVANCED_OPTIONS && HIGHMEM | |
1000 | help | |
1001 | This option allows you to set the base address of the kernel virtual | |
1002 | area used to map high memory pages. This can be useful in | |
1003 | optimizing the layout of kernel virtual memory. | |
1004 | ||
1005 | Say N here unless you know what you are doing. | |
1006 | ||
1007 | config HIGHMEM_START | |
1008 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL | |
1009 | default "0xfe000000" | |
1010 | ||
1011 | config LOWMEM_SIZE_BOOL | |
1012 | bool "Set maximum low memory" | |
1013 | depends on ADVANCED_OPTIONS | |
1014 | help | |
1015 | This option allows you to set the maximum amount of memory which | |
1016 | will be used as "low memory", that is, memory which the kernel can | |
1017 | access directly, without having to set up a kernel virtual mapping. | |
1018 | This can be useful in optimizing the layout of kernel virtual | |
1019 | memory. | |
1020 | ||
1021 | Say N here unless you know what you are doing. | |
1022 | ||
1023 | config LOWMEM_SIZE | |
1024 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1025 | default "0x30000000" | |
1026 | ||
1027 | config KERNEL_START_BOOL | |
1028 | bool "Set custom kernel base address" | |
1029 | depends on ADVANCED_OPTIONS | |
1030 | help | |
1031 | This option allows you to set the kernel virtual address at which | |
1032 | the kernel will map low memory (the kernel image will be linked at | |
1033 | this address). This can be useful in optimizing the virtual memory | |
1034 | layout of the system. | |
1035 | ||
1036 | Say N here unless you know what you are doing. | |
1037 | ||
1038 | config KERNEL_START | |
1039 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
1040 | default "0xc0000000" | |
1041 | ||
1042 | config TASK_SIZE_BOOL | |
1043 | bool "Set custom user task size" | |
1044 | depends on ADVANCED_OPTIONS | |
1045 | help | |
1046 | This option allows you to set the amount of virtual address space | |
1047 | allocated to user tasks. This can be useful in optimizing the | |
1048 | virtual memory layout of the system. | |
1049 | ||
1050 | Say N here unless you know what you are doing. | |
1051 | ||
1052 | config TASK_SIZE | |
1053 | hex "Size of user task space" if TASK_SIZE_BOOL | |
1054 | default "0x80000000" | |
1055 | ||
1056 | config CONSISTENT_START_BOOL | |
1057 | bool "Set custom consistent memory pool address" | |
1058 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1059 | help | |
1060 | This option allows you to set the base virtual address | |
4b3f686d | 1061 | of the consistent memory pool. This pool of virtual |
14cf11af PM |
1062 | memory is used to make consistent memory allocations. |
1063 | ||
1064 | config CONSISTENT_START | |
1065 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL | |
1066 | default "0xff100000" if NOT_COHERENT_CACHE | |
1067 | ||
1068 | config CONSISTENT_SIZE_BOOL | |
1069 | bool "Set custom consistent memory pool size" | |
1070 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | |
1071 | help | |
4b3f686d | 1072 | This option allows you to set the size of the |
14cf11af PM |
1073 | consistent memory pool. This pool of virtual memory |
1074 | is used to make consistent memory allocations. | |
1075 | ||
1076 | config CONSISTENT_SIZE | |
1077 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | |
1078 | default "0x00200000" if NOT_COHERENT_CACHE | |
1079 | ||
1080 | config BOOT_LOAD_BOOL | |
1081 | bool "Set the boot link/load address" | |
1082 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM | |
1083 | help | |
1084 | This option allows you to set the initial load address of the zImage | |
1085 | or zImage.initrd file. This can be useful if you are on a board | |
1086 | which has a small amount of memory. | |
1087 | ||
1088 | Say N here unless you know what you are doing. | |
1089 | ||
1090 | config BOOT_LOAD | |
1091 | hex "Link/load address for booting" if BOOT_LOAD_BOOL | |
1092 | default "0x00400000" if 40x || 8xx || 8260 | |
1093 | default "0x01000000" if 44x | |
1094 | default "0x00800000" | |
1095 | ||
1096 | config PIN_TLB | |
1097 | bool "Pinned Kernel TLBs (860 ONLY)" | |
1098 | depends on ADVANCED_OPTIONS && 8xx | |
1099 | endmenu | |
1100 | ||
cabb5587 SR |
1101 | if PPC64 |
1102 | config KERNEL_START | |
1103 | hex | |
eeb2d218 | 1104 | default "0xc000000000000000" |
cabb5587 SR |
1105 | endif |
1106 | ||
14cf11af PM |
1107 | source "net/Kconfig" |
1108 | ||
1109 | source "drivers/Kconfig" | |
1110 | ||
1111 | source "fs/Kconfig" | |
1112 | ||
1113 | # XXX source "arch/ppc/8xx_io/Kconfig" | |
1114 | ||
1115 | # XXX source "arch/ppc/8260_io/Kconfig" | |
1116 | ||
98658538 LY |
1117 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
1118 | ||
14cf11af PM |
1119 | source "arch/powerpc/platforms/iseries/Kconfig" |
1120 | ||
1121 | source "lib/Kconfig" | |
1122 | ||
cd6b0762 PP |
1123 | menu "Instrumentation Support" |
1124 | depends on EXPERIMENTAL | |
1125 | ||
14cf11af PM |
1126 | source "arch/powerpc/oprofile/Kconfig" |
1127 | ||
cd6b0762 PP |
1128 | config KPROBES |
1129 | bool "Kprobes (EXPERIMENTAL)" | |
3a872d89 | 1130 | depends on PPC64 && KALLSYMS && EXPERIMENTAL && MODULES |
cd6b0762 PP |
1131 | help |
1132 | Kprobes allows you to trap at almost any kernel address and | |
1133 | execute a callback function. register_kprobe() establishes | |
1134 | a probepoint and specifies the callback. Kprobes is useful | |
1135 | for kernel debugging, non-intrusive instrumentation and testing. | |
1136 | If in doubt, say "N". | |
1137 | endmenu | |
1138 | ||
14cf11af PM |
1139 | source "arch/powerpc/Kconfig.debug" |
1140 | ||
1141 | source "security/Kconfig" | |
1142 | ||
1143 | config KEYS_COMPAT | |
1144 | bool | |
1145 | depends on COMPAT && KEYS | |
1146 | default y | |
1147 | ||
1148 | source "crypto/Kconfig" |