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Paul Mackerras14cf11a2005-09-26 16:04:21 +10001# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4
5mainmenu "Linux/PowerPC Kernel Configuration"
6
7config 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
14config PPC32
15 bool
16 default y if !PPC64
17
18config 64BIT
19 bool
20 default y if PPC64
21
22config PPC_MERGE
23 def_bool y
24
25config MMU
26 bool
27 default y
28
Paul Mackerras14cf11a2005-09-26 16:04:21 +100029config GENERIC_HARDIRQS
30 bool
31 default y
32
Ingo Molnar0d7012a2006-06-29 02:24:43 -070033config IRQ_PER_CPU
34 bool
35 default y
36
Paul Mackerras14cf11a2005-09-26 16:04:21 +100037config RWSEM_GENERIC_SPINLOCK
38 bool
39
40config RWSEM_XCHGADD_ALGORITHM
41 bool
42 default y
43
Akinobu Mitae779b2f2006-03-26 01:39:33 -080044config GENERIC_HWEIGHT
45 bool
46 default y
47
Paul Mackerras14cf11a2005-09-26 16:04:21 +100048config GENERIC_CALIBRATE_DELAY
49 bool
50 default y
51
Jon Mason0a9cb462006-05-19 15:35:32 -050052config GENERIC_FIND_NEXT_BIT
53 bool
54 default y
55
Paul Mackerras14cf11a2005-09-26 16:04:21 +100056config PPC
57 bool
58 default y
59
60config EARLY_PRINTK
61 bool
Benjamin Herrenschmidt51d30822005-11-23 17:57:25 +110062 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +100063
64config COMPAT
65 bool
66 default y if PPC64
67
68config SYSVIPC_COMPAT
69 bool
70 depends on COMPAT && SYSVIPC
71 default y
72
73# All PPC32s use generic nvram driver through ppc_md
74config GENERIC_NVRAM
75 bool
76 default y if PPC32
77
78config SCHED_NO_NO_OMIT_FRAME_POINTER
79 bool
80 default y
81
82config ARCH_MAY_HAVE_PC_FDC
83 bool
84 default y
85
Kumar Gala08264cb2006-01-10 21:43:56 -060086config PPC_OF
87 def_bool y
88
89config PPC_UDBG_16550
90 bool
91 default n
92
Kumar Gala08264cb2006-01-10 21:43:56 -060093config GENERIC_TBSYNC
94 bool
95 default y if PPC32 && SMP
96 default n
97
Kumar Galaf4fc4a52006-01-16 10:53:22 -060098config DEFAULT_UIMAGE
99 bool
100 help
101 Used to allow a board to specify it wants a uImage built by default
102 default n
103
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000104menu "Processor support"
105choice
106 prompt "Processor Type"
107 depends on PPC32
108 default 6xx
109
Kumar Gala08264cb2006-01-10 21:43:56 -0600110config CLASSIC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000111 bool "6xx/7xx/74xx"
112 select PPC_FPU
Kumar Gala08264cb2006-01-10 21:43:56 -0600113 select 6xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000114 help
115 There are four families of PowerPC chips supported. The more common
116 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
117 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
118 embedded versions (403 and 405) and the high end 64 bit Power
119 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
120
121 Unless you are building a kernel for one of the embedded processor
122 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
123 Note that the kernel runs in 32-bit mode even on 64-bit chips.
124
125config PPC_52xx
126 bool "Freescale 52xx"
Kumar Gala08264cb2006-01-10 21:43:56 -0600127 select 6xx
128 select PPC_FPU
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000129
130config PPC_82xx
131 bool "Freescale 82xx"
Kumar Gala08264cb2006-01-10 21:43:56 -0600132 select 6xx
133 select PPC_FPU
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000134
135config PPC_83xx
136 bool "Freescale 83xx"
Kumar Gala08264cb2006-01-10 21:43:56 -0600137 select 6xx
138 select FSL_SOC
139 select 83xx
140 select PPC_FPU
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000141
Becky Bruce63dafe52006-01-14 16:57:39 -0600142config PPC_85xx
143 bool "Freescale 85xx"
144 select E500
145 select FSL_SOC
146 select 85xx
147
Jon Loeligerc9b484b2006-06-17 17:52:35 -0500148config PPC_86xx
149 bool "Freescale 86xx"
150 select 6xx
151 select FSL_SOC
152 select PPC_FPU
153 select ALTIVEC
154 help
155 The Freescale E600 SoCs have 74xx cores.
156
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000157config 40x
158 bool "AMCC 40x"
159
160config 44x
161 bool "AMCC 44x"
162
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000163config 8xx
164 bool "Freescale 8xx"
165
166config E200
167 bool "Freescale e200"
168
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000169endchoice
170
171config POWER4_ONLY
172 bool "Optimize for POWER4"
Paul Mackerras187a0062005-10-06 12:49:05 +1000173 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000174 default n
175 ---help---
176 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
177 The resulting binary will not work on POWER3 or RS64 processors
178 when compiled with binutils 2.15 or later.
179
180config POWER3
181 bool
Paul Mackerras187a0062005-10-06 12:49:05 +1000182 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000183 default y if !POWER4_ONLY
184
185config POWER4
Paul Mackerras187a0062005-10-06 12:49:05 +1000186 depends on PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000187 def_bool y
188
Kumar Gala08264cb2006-01-10 21:43:56 -0600189config 6xx
190 bool
191
192# this is temp to handle compat with arch=ppc
193config 83xx
194 bool
195
Becky Bruce63dafe52006-01-14 16:57:39 -0600196# this is temp to handle compat with arch=ppc
197config 85xx
198 bool
199
200config E500
201 bool
202
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000203config PPC_FPU
Paul Mackerras187a0062005-10-06 12:49:05 +1000204 bool
205 default y if PPC64
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000206
207config BOOKE
208 bool
209 depends on E200 || E500
210 default y
211
212config FSL_BOOKE
213 bool
214 depends on E200 || E500
215 default y
216
217config PTE_64BIT
218 bool
219 depends on 44x || E500
220 default y if 44x
221 default y if E500 && PHYS_64BIT
222
223config PHYS_64BIT
224 bool 'Large physical address support' if E500
225 depends on 44x || E500
226 default y if 44x
227 ---help---
228 This option enables kernel support for larger than 32-bit physical
229 addresses. This features is not be available on all e500 cores.
230
231 If in doubt, say N here.
232
233config ALTIVEC
234 bool "AltiVec Support"
Kumar Gala08264cb2006-01-10 21:43:56 -0600235 depends on CLASSIC32 || POWER4
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000236 ---help---
237 This option enables kernel support for the Altivec extensions to the
238 PowerPC processor. The kernel currently supports saving and restoring
239 altivec registers, and turning on the 'altivec enable' bit so user
240 processes can execute altivec instructions.
241
242 This option is only usefully if you have a processor that supports
243 altivec (G4, otherwise known as 74xx series), but does not have
244 any affect on a non-altivec cpu (it does, however add code to the
245 kernel).
246
247 If in doubt, say Y here.
248
249config SPE
250 bool "SPE Support"
251 depends on E200 || E500
Becky Bruce63dafe52006-01-14 16:57:39 -0600252 default y
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000253 ---help---
254 This option enables kernel support for the Signal Processing
255 Extensions (SPE) to the PowerPC processor. The kernel currently
256 supports saving and restoring SPE registers, and turning on the
257 'spe enable' bit so user processes can execute SPE instructions.
258
259 This option is only useful if you have a processor that supports
260 SPE (e500, otherwise known as 85xx series), but does not have any
261 effect on a non-spe cpu (it does, however add code to the kernel).
262
263 If in doubt, say Y here.
264
265config PPC_STD_MMU
266 bool
267 depends on 6xx || POWER3 || POWER4 || PPC64
268 default y
269
270config PPC_STD_MMU_32
271 def_bool y
272 depends on PPC_STD_MMU && PPC32
273
Paul Mackerrasc6622f62006-02-24 10:06:59 +1100274config VIRT_CPU_ACCOUNTING
275 bool "Deterministic task and CPU time accounting"
276 depends on PPC64
277 default y
278 help
279 Select this option to enable more accurate task and CPU time
280 accounting. This is done by reading a CPU counter on each
281 kernel entry and exit and on transitions within the kernel
282 between system, softirq and hardirq state, so there is a
283 small performance impact. This also enables accounting of
284 stolen time on logically-partitioned systems running on
285 IBM POWER5-based machines.
286
287 If in doubt, say Y here.
288
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000289config SMP
290 depends on PPC_STD_MMU
291 bool "Symmetric multi-processing support"
292 ---help---
293 This enables support for systems with more than one CPU. If you have
294 a system with only one CPU, say N. If you have a system with more
295 than one CPU, say Y. Note that the kernel does not currently
296 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
297 since they have inadequate hardware support for multiprocessor
298 operation.
299
300 If you say N here, the kernel will run on single and multiprocessor
301 machines, but will use only one CPU of a multiprocessor machine. If
302 you say Y here, the kernel will run on single-processor machines.
303 On a single-processor machine, the kernel will run faster if you say
304 N here.
305
306 If you don't know what to do here, say N.
307
308config NR_CPUS
Olaf Heringe8a167a2005-12-01 21:10:10 +0100309 int "Maximum number of CPUs (2-128)"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000310 range 2 128
311 depends on SMP
312 default "32" if PPC64
313 default "4"
314
315config NOT_COHERENT_CACHE
316 bool
317 depends on 4xx || 8xx || E200
318 default y
319endmenu
320
321source "init/Kconfig"
322
323menu "Platform support"
Kumar Gala08264cb2006-01-10 21:43:56 -0600324 depends on PPC64 || CLASSIC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000325
326choice
327 prompt "Machine type"
328 default PPC_MULTIPLATFORM
329
330config PPC_MULTIPLATFORM
331 bool "Generic desktop/server/laptop"
332 help
333 Select this option if configuring for an IBM pSeries or
334 RS/6000 machine, an Apple machine, or a PReP, CHRP,
335 Maple or Cell-based machine.
336
337config PPC_ISERIES
338 bool "IBM Legacy iSeries"
339 depends on PPC64
340
341config EMBEDDED6xx
342 bool "Embedded 6xx/7xx/7xxx-based board"
Zang Roy-r61911c5d56332006-06-13 15:07:15 +0800343 depends on PPC32 && (BROKEN||BROKEN_ON_SMP)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000344
345config 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/>.
352endchoice
353
354config PPC_PSERIES
355 depends on PPC_MULTIPLATFORM && PPC64
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700356 bool "IBM pSeries & new (POWER5-based) iSeries"
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000357 select PPC_I8259
Paul Mackerras033ef332005-10-26 17:05:24 +1000358 select PPC_RTAS
359 select RTAS_ERROR_LOGGING
Paul Mackerras13b8a272006-01-10 16:19:05 +1100360 select PPC_UDBG_16550
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000361 default y
362
363config PPC_CHRP
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700364 bool "Common Hardware Reference Platform (CHRP) based machines"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000365 depends on PPC_MULTIPLATFORM && PPC32
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000366 select PPC_I8259
Paul Mackerras25635c72005-10-26 16:36:55 +1000367 select PPC_INDIRECT_PCI
Paul Mackerras033ef332005-10-26 17:05:24 +1000368 select PPC_RTAS
Paul Mackerras830825d2005-10-26 17:16:38 +1000369 select PPC_MPC106
Paul Mackerras13b8a272006-01-10 16:19:05 +1100370 select PPC_UDBG_16550
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000371 default y
372
373config PPC_PMAC
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700374 bool "Apple PowerMac based machines"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000375 depends on PPC_MULTIPLATFORM
Paul Mackerras25635c72005-10-26 16:36:55 +1000376 select PPC_INDIRECT_PCI if PPC32
Paul Mackerrasb6a4ce52005-10-26 22:54:17 +1000377 select PPC_MPC106 if PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000378 default y
379
380config PPC_PMAC64
381 bool
382 depends on PPC_PMAC && POWER4
Paul Mackerras35499c02005-10-22 16:02:39 +1000383 select U3_DART
Benjamin Herrenschmidt1beb6a72005-12-14 13:10:10 +1100384 select MPIC_BROKEN_U3
Paul Mackerras8ad200d2005-11-04 13:28:58 +1100385 select GENERIC_TBSYNC
Paul Mackerrasf39224a2006-04-18 21:49:11 +1000386 select PPC_970_NAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000387 default y
388
389config PPC_PREP
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700390 bool "PowerPC Reference Platform (PReP) based machines"
Paul Mackerras5be396b2005-11-14 17:31:55 +1100391 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000392 select PPC_I8259
Paul Mackerras25635c72005-10-26 16:36:55 +1000393 select PPC_INDIRECT_PCI
Paul Mackerras13b8a272006-01-10 16:19:05 +1100394 select PPC_UDBG_16550
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000395 default y
396
397config PPC_MAPLE
398 depends on PPC_MULTIPLATFORM && PPC64
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700399 bool "Maple 970FX Evaluation Board"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000400 select U3_DART
401 select MPIC_BROKEN_U3
Paul Mackerras8ad200d2005-11-04 13:28:58 +1100402 select GENERIC_TBSYNC
Paul Mackerras13b8a272006-01-10 16:19:05 +1100403 select PPC_UDBG_16550
Paul Mackerrasf39224a2006-04-18 21:49:11 +1000404 select PPC_970_NAP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000405 default n
406 help
407 This option enables support for the Maple 970FX Evaluation Board.
408 For more informations, refer to <http://www.970eval.com>
409
Arnd Bergmannf3f66f52005-10-31 20:08:37 -0500410config PPC_CELL
Geoff Levandc01ea722006-06-19 20:33:28 +0200411 bool
412 default n
413
414config PPC_CELL_NATIVE
415 bool
416 select PPC_CELL
417 default n
418
419config PPC_IBM_CELL_BLADE
Andrew Mortonf127a2b2006-06-25 01:49:07 -0700420 bool "IBM Cell Blade"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000421 depends on PPC_MULTIPLATFORM && PPC64
Geoff Levandc01ea722006-06-19 20:33:28 +0200422 select PPC_CELL_NATIVE
Paul Mackerras033ef332005-10-26 17:05:24 +1000423 select PPC_RTAS
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500424 select MMIO_NVRAM
Paul Mackerras13b8a272006-01-10 16:19:05 +1100425 select PPC_UDBG_16550
Michael Ellerman94b60ec2006-06-23 18:20:22 +1000426 select UDBG_RTAS_CONSOLE
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000427
Michael Ellermancc46bb92006-06-23 18:20:16 +1000428config UDBG_RTAS_CONSOLE
429 bool
430 default n
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000431
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000432config XICS
433 depends on PPC_PSERIES
434 bool
435 default y
436
437config U3_DART
438 bool
439 depends on PPC_MULTIPLATFORM && PPC64
440 default n
441
442config MPIC
Zang Roy-r61911c5d56332006-06-13 15:07:15 +0800443 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP \
444 || MPC7448HPC2
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000445 bool
446 default y
447
Paul Mackerras033ef332005-10-26 17:05:24 +1000448config PPC_RTAS
449 bool
450 default n
451
452config RTAS_ERROR_LOGGING
453 bool
454 depends on PPC_RTAS
455 default n
456
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100457config RTAS_PROC
458 bool "Proc interface to RTAS"
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500459 depends on PPC_RTAS
Paul Mackerrasf4fcbbe2005-11-03 14:41:19 +1100460 default y
461
462config RTAS_FLASH
463 tristate "Firmware flash interface"
464 depends on PPC64 && RTAS_PROC
Arnd Bergmanne9add2e2005-10-31 20:08:39 -0500465
Arnd Bergmannedf03c12005-10-31 20:08:40 -0500466config MMIO_NVRAM
467 bool
468 default n
469
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000470config MPIC_BROKEN_U3
471 bool
472 depends on PPC_MAPLE
473 default y
474
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000475config IBMVIO
476 depends on PPC_PSERIES || PPC_ISERIES
477 bool
478 default y
479
Heiko J Schickd7a30102005-11-16 08:56:43 +0100480config IBMEBUS
481 depends on PPC_PSERIES
482 bool "Support for GX bus based adapters"
Heiko J Schickd7a30102005-11-16 08:56:43 +0100483 help
484 Bus device driver for GX bus based adapters.
485
Paul Mackerras830825d2005-10-26 17:16:38 +1000486config PPC_MPC106
487 bool
488 default n
489
Paul Mackerrasf39224a2006-04-18 21:49:11 +1000490config PPC_970_NAP
491 bool
492 default n
493
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000494source "drivers/cpufreq/Kconfig"
495
496config CPU_FREQ_PMAC
497 bool "Support for Apple PowerBooks"
498 depends on CPU_FREQ && ADB_PMU && PPC32
499 select CPU_FREQ_TABLE
500 help
501 This adds support for frequency switching on Apple PowerBooks,
502 this currently includes some models of iBook & Titanium
503 PowerBook.
504
Benjamin Herrenschmidt43501472005-11-07 14:27:33 +1100505config CPU_FREQ_PMAC64
506 bool "Support for some Apple G5s"
Benjamin Herrenschmidte272a282006-07-10 16:44:54 +1000507 depends on CPU_FREQ && PPC64
Benjamin Herrenschmidt43501472005-11-07 14:27:33 +1100508 select CPU_FREQ_TABLE
509 help
510 This adds support for frequency switching on Apple iMac G5,
511 and some of the more recent desktop G5 machines as well.
512
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000513config PPC601_SYNC_FIX
514 bool "Workarounds for PPC601 bugs"
515 depends on 6xx && (PPC_PREP || PPC_PMAC)
516 help
517 Some versions of the PPC601 (the first PowerPC chip) have bugs which
518 mean that extra synchronization instructions are required near
519 certain instructions, typically those that make major changes to the
520 CPU state. These extra instructions reduce performance slightly.
521 If you say N here, these extra instructions will not be included,
522 resulting in a kernel which will run faster but may not run at all
523 on some systems with the PPC601 chip.
524
525 If in doubt, say Y here.
526
527config TAU
Paul Mackerras9b781722006-03-27 19:15:26 +1100528 bool "On-chip CPU temperature sensor support"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000529 depends on 6xx
530 help
531 G3 and G4 processors have an on-chip temperature sensor called the
532 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
533 temperature within 2-4 degrees Celsius. This option shows the current
534 on-die temperature in /proc/cpuinfo if the cpu supports it.
535
536 Unfortunately, on some chip revisions, this sensor is very inaccurate
Paul Mackerras9b781722006-03-27 19:15:26 +1100537 and in many cases, does not work at all, so don't assume the cpu
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000538 temp is actually what /proc/cpuinfo says it is.
539
540config TAU_INT
541 bool "Interrupt driven TAU driver (DANGEROUS)"
542 depends on TAU
543 ---help---
544 The TAU supports an interrupt driven mode which causes an interrupt
545 whenever the temperature goes out of range. This is the fastest way
546 to get notified the temp has exceeded a range. With this option off,
547 a timer is used to re-check the temperature periodically.
548
549 However, on some cpus it appears that the TAU interrupt hardware
550 is buggy and can cause a situation which would lead unexplained hard
551 lockups.
552
553 Unless you are extending the TAU driver, or enjoy kernel/hardware
554 debugging, leave this option off.
555
556config TAU_AVERAGE
557 bool "Average high and low temp"
558 depends on TAU
559 ---help---
560 The TAU hardware can compare the temperature to an upper and lower
561 bound. The default behavior is to show both the upper and lower
562 bound in /proc/cpuinfo. If the range is large, the temperature is
563 either changing a lot, or the TAU hardware is broken (likely on some
564 G4's). If the range is small (around 4 degrees), the temperature is
565 relatively stable. If you say Y here, a single temperature value,
566 halfway between the upper and lower bounds, will be reported in
567 /proc/cpuinfo.
568
569 If in doubt, say N here.
Mark A. Greerc2201532006-06-28 14:13:20 -0700570
571config PPC_TODC
572 depends on EMBEDDED6xx
573 bool "Generic Time-of-day Clock (TODC) support"
574 ---help---
575 This adds support for many TODC/RTC chips.
576
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000577endmenu
578
579source arch/powerpc/platforms/embedded6xx/Kconfig
580source arch/powerpc/platforms/4xx/Kconfig
Kumar Gala08264cb2006-01-10 21:43:56 -0600581source arch/powerpc/platforms/83xx/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000582source arch/powerpc/platforms/85xx/Kconfig
Jon Loeligerc9b484b2006-06-17 17:52:35 -0500583source arch/powerpc/platforms/86xx/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000584source arch/powerpc/platforms/8xx/Kconfig
Arnd Bergmann67207b92005-11-15 15:53:48 -0500585source arch/powerpc/platforms/cell/Kconfig
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000586
587menu "Kernel options"
588
589config HIGHMEM
590 bool "High memory support"
591 depends on PPC32
592
593source kernel/Kconfig.hz
594source kernel/Kconfig.preempt
595source "fs/Kconfig.binfmt"
596
597# We optimistically allocate largepages from the VM, so make the limit
598# large enough (16MB). This badly named config option is actually
599# max order + 1
600config FORCE_MAX_ZONEORDER
601 int
602 depends on PPC64
Mike Kravetz02864862005-11-07 13:48:59 -0800603 default "9" if PPC_64K_PAGES
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000604 default "13"
605
606config MATH_EMULATION
607 bool "Math emulation"
608 depends on 4xx || 8xx || E200 || E500
609 ---help---
610 Some PowerPC chips designed for embedded applications do not have
611 a floating-point unit and therefore do not implement the
612 floating-point instructions in the PowerPC instruction set. If you
613 say Y here, the kernel will include code to emulate a floating-point
614 unit, which will allow programs that use floating-point
615 instructions to run.
616
617config IOMMU_VMERGE
618 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
619 depends on EXPERIMENTAL && PPC64
620 default n
621 help
622 Cause IO segments sent to a device for DMA to be merged virtually
623 by the IOMMU when they happen to have been allocated contiguously.
624 This doesn't add pressure to the IOMMU allocator. However, some
625 drivers don't support getting large merged segments coming back
626 from *_map_sg(). Say Y if you know the drivers you are using are
627 properly handling this case.
628
629config HOTPLUG_CPU
630 bool "Support for enabling/disabling CPUs"
631 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
632 ---help---
633 Say Y here to be able to disable and re-enable individual
634 CPUs at runtime on SMP machines.
635
636 Say N if you are unsure.
637
Yasunori Gotocc576372006-06-29 02:24:27 -0700638config ARCH_ENABLE_MEMORY_HOTPLUG
639 def_bool y
640
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000641config KEXEC
642 bool "kexec system call (EXPERIMENTAL)"
643 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
644 help
645 kexec is a system call that implements the ability to shutdown your
646 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400647 but it is independent of the system firmware. And like a reboot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000648 you can start any kernel with it, not just Linux.
649
Matt LaPlante1f1332f2006-06-29 01:32:47 -0400650 The name comes from the similarity to the exec system call.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000651
652 It is an ongoing process to be certain the hardware in a machine
653 is properly shutdown, so do not be surprised if this code does not
654 initially work for you. It may help to enable device hotplugging
655 support. As of this writing the exact hardware interface is
656 strongly in flux, so no good recommendation can be made.
657
Haren Mynenie8625d462006-01-14 13:48:25 -0800658config CRASH_DUMP
Michael Ellermancd9c99d2006-03-10 15:01:08 +1100659 bool "Build a kdump crash kernel (EXPERIMENTAL)"
Haren Mynenie8625d462006-01-14 13:48:25 -0800660 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
661 help
662 Build a kernel suitable for use as a kdump capture kernel.
663 The kernel will be linked at a different address than normal, and
664 so can only be used for Kdump.
665
666 Don't change this unless you know what you are doing.
667
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000668config EMBEDDEDBOOT
669 bool
670 depends on 8xx || 8260
671 default y
672
673config PC_KEYBOARD
674 bool "PC PS/2 style Keyboard"
675 depends on 4xx || CPM2
676
677config PPCBUG_NVRAM
678 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
679 default y if PPC_PREP
680
681config IRQ_ALL_CPUS
682 bool "Distribute interrupts on all CPUs by default"
683 depends on SMP && !MV64360
684 help
685 This option gives the kernel permission to distribute IRQs across
686 multiple CPUs. Saying N here will route all IRQs to the first
687 CPU. Generally saying Y is safe, although some problems have been
688 reported with SMP Power Macintoshes with this option enabled.
689
690source "arch/powerpc/platforms/pseries/Kconfig"
691
Andy Whitcroftffa27b62005-10-28 17:46:58 -0700692config NUMA
693 bool "NUMA support"
694 depends on PPC64
695 default y if SMP && PPC_PSERIES
696
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700697config NODES_SHIFT
698 int
699 default "4"
700 depends on NEED_MULTIPLE_NODES
701
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000702config ARCH_SELECT_MEMORY_MODEL
703 def_bool y
704 depends on PPC64
705
706config ARCH_FLATMEM_ENABLE
Andy Whitcroft9100b202005-11-29 19:20:55 +0000707 def_bool y
708 depends on (PPC64 && !NUMA) || PPC32
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000709
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000710config ARCH_SPARSEMEM_ENABLE
711 def_bool y
Andy Whitcroft9100b202005-11-29 19:20:55 +0000712 depends on PPC64
Anton Blanchard45fb6ce2005-11-11 14:22:35 +1100713
714config ARCH_SPARSEMEM_DEFAULT
715 def_bool y
716 depends on SMP && PPC_PSERIES
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000717
718source "mm/Kconfig"
719
720config HAVE_ARCH_EARLY_PFN_TO_NID
721 def_bool y
722 depends on NEED_MULTIPLE_NODES
723
Mike Kravetz7e9191d2005-11-07 09:39:48 -0800724config ARCH_MEMORY_PROBE
725 def_bool y
726 depends on MEMORY_HOTPLUG
727
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100728config PPC_64K_PAGES
729 bool "64k page size"
Benjamin Herrenschmidt863c84b2005-11-07 00:57:58 -0800730 depends on PPC64
Benjamin Herrenschmidt3c726f82005-11-07 11:06:55 +1100731 help
732 This option changes the kernel logical page size to 64k. On machines
733 without processor support for 64k pages, the kernel will simulate
734 them by loading each individual 4k page on demand transparently,
735 while on hardware with such support, it will be used to map
736 normal application pages.
737
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000738config SCHED_SMT
739 bool "SMT (Hyperthreading) scheduler support"
740 depends on PPC64 && SMP
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000741 help
742 SMT scheduler support improves the CPU scheduler's decision making
743 when dealing with POWER5 cpus at a cost of slightly increased
744 overhead in some places. If unsure say N here.
745
746config PROC_DEVICETREE
Paul Mackerras5f296752005-10-17 20:14:59 +1000747 bool "Support for device tree in /proc"
748 depends on PROC_FS
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000749 help
750 This option adds a device-tree directory under /proc which contains
751 an image of the device tree that the kernel copies from Open
Paul Mackerras5f296752005-10-17 20:14:59 +1000752 Firmware or other boot firmware. If unsure, say Y here.
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000753
754source "arch/powerpc/platforms/prep/Kconfig"
755
756config CMDLINE_BOOL
757 bool "Default bootloader kernel arguments"
758 depends on !PPC_ISERIES
759
760config CMDLINE
761 string "Initial kernel command string"
762 depends on CMDLINE_BOOL
763 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
764 help
765 On some platforms, there is currently no way for the boot loader to
766 pass arguments to the kernel. For these platforms, you can supply
767 some command-line options at build time by entering them here. In
768 most cases you will need to specify the root device here.
769
770if !44x || BROKEN
771source kernel/power/Kconfig
772endif
773
774config SECCOMP
775 bool "Enable seccomp to safely compute untrusted bytecode"
776 depends on PROC_FS
777 default y
778 help
779 This kernel feature is useful for number crunching applications
780 that may need to compute untrusted bytecode during their
781 execution. By using pipes or other transports made available to
782 the process as file descriptors supporting the read/write
783 syscalls, it's possible to isolate those applications in
784 their own address space using seccomp. Once seccomp is
785 enabled via /proc/<pid>/seccomp, it cannot be disabled
786 and the task is only allowed to execute a few safe syscalls
787 defined by each seccomp mode.
788
789 If unsure, say Y. Only embedded should say N here.
790
791endmenu
792
793config ISA_DMA_API
794 bool
795 default y
796
797menu "Bus options"
798
799config ISA
800 bool "Support for ISA-bus hardware"
801 depends on PPC_PREP || PPC_CHRP
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000802 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000803 help
804 Find out whether you have ISA slots on your motherboard. ISA is the
805 name of a bus system, i.e. the way the CPU talks to the other stuff
806 inside your box. If you have an Apple machine, say N here; if you
807 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
808 you have an embedded board, consult your board documentation.
809
810config GENERIC_ISA_DMA
811 bool
812 depends on PPC64 || POWER4 || 6xx && !CPM2
813 default y
814
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000815config PPC_I8259
816 bool
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000817 default n
818
Paul Mackerras25635c72005-10-26 16:36:55 +1000819config PPC_INDIRECT_PCI
820 bool
821 depends on PCI
Becky Bruce63dafe52006-01-14 16:57:39 -0600822 default y if 40x || 44x
Paul Mackerras25635c72005-10-26 16:36:55 +1000823 default n
824
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000825config EISA
826 bool
827
828config SBUS
829 bool
830
Kumar Gala08264cb2006-01-10 21:43:56 -0600831config FSL_SOC
832 bool
833
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000834# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
835config MCA
836 bool
837
838config PCI
Jon Loeliger53158622006-08-09 10:37:28 -0500839 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
840 || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) || MPC7448HPC2
841 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \
842 && !PPC_85xx && !PPC_86xx
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000843 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
844 default PCI_QSPAN if !4xx && !CPM2 && 8xx
845 help
846 Find out whether your system includes a PCI bus. PCI is the name of
847 a bus system, i.e. the way the CPU talks to the other stuff inside
848 your box. If you say Y here, the kernel will include drivers and
849 infrastructure code to support PCI bus devices.
850
851config PCI_DOMAINS
852 bool
853 default PCI
854
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000855config PCI_QSPAN
856 bool "QSpan PCI"
857 depends on !4xx && !CPM2 && 8xx
Paul Mackerrasf9bd1702005-10-26 16:47:42 +1000858 select PPC_I8259
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000859 help
860 Say Y here if you have a system based on a Motorola 8xx-series
861 embedded processor with a QSPAN PCI interface, otherwise say N.
862
863config PCI_8260
864 bool
865 depends on PCI && 8260
Paul Mackerras25635c72005-10-26 16:36:55 +1000866 select PPC_INDIRECT_PCI
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000867 default y
868
869config 8260_PCI9
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700870 bool "Enable workaround for MPC826x erratum PCI 9"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000871 depends on PCI_8260 && !ADS8272
872 default y
873
874choice
Andrew Morton4a3ecc62006-06-01 20:36:04 -0700875 prompt "IDMA channel for PCI 9 workaround"
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000876 depends on 8260_PCI9
877
878config 8260_PCI9_IDMA1
879 bool "IDMA1"
880
881config 8260_PCI9_IDMA2
882 bool "IDMA2"
883
884config 8260_PCI9_IDMA3
885 bool "IDMA3"
886
887config 8260_PCI9_IDMA4
888 bool "IDMA4"
889
890endchoice
891
Jake Moilanenbb53bb32006-06-07 16:05:46 -0500892source "drivers/pci/pcie/Kconfig"
893
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000894source "drivers/pci/Kconfig"
895
896source "drivers/pcmcia/Kconfig"
897
898source "drivers/pci/hotplug/Kconfig"
899
900endmenu
901
902menu "Advanced setup"
903 depends on PPC32
904
905config ADVANCED_OPTIONS
906 bool "Prompt for advanced kernel configuration options"
907 help
908 This option will enable prompting for a variety of advanced kernel
909 configuration options. These options can cause the kernel to not
910 work if they are set incorrectly, but can be used to optimize certain
911 aspects of kernel memory management.
912
913 Unless you know what you are doing, say N here.
914
915comment "Default settings for advanced configuration options are used"
916 depends on !ADVANCED_OPTIONS
917
918config HIGHMEM_START_BOOL
919 bool "Set high memory pool address"
920 depends on ADVANCED_OPTIONS && HIGHMEM
921 help
922 This option allows you to set the base address of the kernel virtual
923 area used to map high memory pages. This can be useful in
924 optimizing the layout of kernel virtual memory.
925
926 Say N here unless you know what you are doing.
927
928config HIGHMEM_START
929 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
930 default "0xfe000000"
931
932config LOWMEM_SIZE_BOOL
933 bool "Set maximum low memory"
934 depends on ADVANCED_OPTIONS
935 help
936 This option allows you to set the maximum amount of memory which
937 will be used as "low memory", that is, memory which the kernel can
938 access directly, without having to set up a kernel virtual mapping.
939 This can be useful in optimizing the layout of kernel virtual
940 memory.
941
942 Say N here unless you know what you are doing.
943
944config LOWMEM_SIZE
945 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
946 default "0x30000000"
947
948config KERNEL_START_BOOL
949 bool "Set custom kernel base address"
950 depends on ADVANCED_OPTIONS
951 help
952 This option allows you to set the kernel virtual address at which
953 the kernel will map low memory (the kernel image will be linked at
954 this address). This can be useful in optimizing the virtual memory
955 layout of the system.
956
957 Say N here unless you know what you are doing.
958
959config KERNEL_START
960 hex "Virtual address of kernel base" if KERNEL_START_BOOL
961 default "0xc0000000"
962
963config TASK_SIZE_BOOL
964 bool "Set custom user task size"
965 depends on ADVANCED_OPTIONS
966 help
967 This option allows you to set the amount of virtual address space
968 allocated to user tasks. This can be useful in optimizing the
969 virtual memory layout of the system.
970
971 Say N here unless you know what you are doing.
972
973config TASK_SIZE
974 hex "Size of user task space" if TASK_SIZE_BOOL
975 default "0x80000000"
976
977config CONSISTENT_START_BOOL
978 bool "Set custom consistent memory pool address"
979 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
980 help
981 This option allows you to set the base virtual address
982 of the the consistent memory pool. This pool of virtual
983 memory is used to make consistent memory allocations.
984
985config CONSISTENT_START
986 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
987 default "0xff100000" if NOT_COHERENT_CACHE
988
989config CONSISTENT_SIZE_BOOL
990 bool "Set custom consistent memory pool size"
991 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
992 help
993 This option allows you to set the size of the the
994 consistent memory pool. This pool of virtual memory
995 is used to make consistent memory allocations.
996
997config CONSISTENT_SIZE
998 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
999 default "0x00200000" if NOT_COHERENT_CACHE
1000
1001config BOOT_LOAD_BOOL
1002 bool "Set the boot link/load address"
1003 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1004 help
1005 This option allows you to set the initial load address of the zImage
1006 or zImage.initrd file. This can be useful if you are on a board
1007 which has a small amount of memory.
1008
1009 Say N here unless you know what you are doing.
1010
1011config BOOT_LOAD
1012 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1013 default "0x00400000" if 40x || 8xx || 8260
1014 default "0x01000000" if 44x
1015 default "0x00800000"
1016
1017config PIN_TLB
1018 bool "Pinned Kernel TLBs (860 ONLY)"
1019 depends on ADVANCED_OPTIONS && 8xx
1020endmenu
1021
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001022if PPC64
1023config KERNEL_START
1024 hex
Stephen Rothwelleeb2d212005-09-30 17:24:15 +10001025 default "0xc000000000000000"
Stephen Rothwellcabb5582005-09-30 16:16:52 +10001026endif
1027
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001028source "net/Kconfig"
1029
1030source "drivers/Kconfig"
1031
1032source "fs/Kconfig"
1033
1034# XXX source "arch/ppc/8xx_io/Kconfig"
1035
1036# XXX source "arch/ppc/8260_io/Kconfig"
1037
1038source "arch/powerpc/platforms/iseries/Kconfig"
1039
1040source "lib/Kconfig"
1041
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -08001042menu "Instrumentation Support"
1043 depends on EXPERIMENTAL
1044
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001045source "arch/powerpc/oprofile/Kconfig"
1046
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -08001047config KPROBES
1048 bool "Kprobes (EXPERIMENTAL)"
Linus Torvaldsadd2b6f2006-02-26 20:24:40 -08001049 depends on PPC64 && EXPERIMENTAL && MODULES
Prasanna S Panchamukhicd6b0762005-11-07 00:59:14 -08001050 help
1051 Kprobes allows you to trap at almost any kernel address and
1052 execute a callback function. register_kprobe() establishes
1053 a probepoint and specifies the callback. Kprobes is useful
1054 for kernel debugging, non-intrusive instrumentation and testing.
1055 If in doubt, say "N".
1056endmenu
1057
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001058source "arch/powerpc/Kconfig.debug"
1059
1060source "security/Kconfig"
1061
1062config KEYS_COMPAT
1063 bool
1064 depends on COMPAT && KEYS
1065 default y
1066
1067source "crypto/Kconfig"