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