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