ia64/linux-2.6.18-xen.hg

view arch/mips/Kconfig @ 897:329ea0ccb344

balloon: try harder to balloon up under memory pressure.

Currently if the balloon driver is unable to increase the guest's
reservation it assumes the failure was due to reaching its full
allocation, gives up on the ballooning operation and records the limit
it reached as the "hard limit". The driver will not try again until
the target is set again (even to the same value).

However it is possible that ballooning has in fact failed due to
memory pressure in the host and therefore it is desirable to keep
attempting to reach the target in case memory becomes available. The
most likely scenario is that some guests are ballooning down while
others are ballooning up and therefore there is temporary memory
pressure while things stabilise. You would not expect a well behaved
toolstack to ask a domain to balloon to more than its allocation nor
would you expect it to deliberately over-commit memory by setting
balloon targets which exceed the total host memory.

This patch drops the concept of a hard limit and causes the balloon
driver to retry increasing the reservation on a timer in the same
manner as when decreasing the reservation.

Also if we partially succeed in increasing the reservation
(i.e. receive less pages than we asked for) then we may as well keep
those pages rather than returning them to Xen.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jun 05 14:01:20 2009 +0100 (2009-06-05)
parents 831230e53067
children
line source
1 config MIPS
2 bool
3 default y
4 # Horrible source of confusion. Die, die, die ...
5 select EMBEDDED
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
11 choice
12 prompt "System type"
13 default SGI_IP22
15 config MIPS_MTX1
16 bool "4G Systems MTX-1 board"
17 select DMA_NONCOHERENT
18 select HW_HAS_PCI
19 select SOC_AU1500
20 select SYS_HAS_CPU_MIPS32_R1
21 select SYS_SUPPORTS_LITTLE_ENDIAN
23 config MIPS_BOSPORUS
24 bool "AMD Alchemy Bosporus board"
25 select SOC_AU1500
26 select DMA_NONCOHERENT
27 select SYS_HAS_CPU_MIPS32_R1
28 select SYS_SUPPORTS_LITTLE_ENDIAN
30 config MIPS_PB1000
31 bool "AMD Alchemy PB1000 board"
32 select SOC_AU1000
33 select DMA_NONCOHERENT
34 select HW_HAS_PCI
35 select SWAP_IO_SPACE
36 select SYS_HAS_CPU_MIPS32_R1
37 select SYS_SUPPORTS_LITTLE_ENDIAN
39 config MIPS_PB1100
40 bool "AMD Alchemy PB1100 board"
41 select SOC_AU1100
42 select DMA_NONCOHERENT
43 select HW_HAS_PCI
44 select SWAP_IO_SPACE
45 select SYS_HAS_CPU_MIPS32_R1
46 select SYS_SUPPORTS_LITTLE_ENDIAN
48 config MIPS_PB1500
49 bool "AMD Alchemy PB1500 board"
50 select SOC_AU1500
51 select DMA_NONCOHERENT
52 select HW_HAS_PCI
53 select SYS_HAS_CPU_MIPS32_R1
54 select SYS_SUPPORTS_LITTLE_ENDIAN
56 config MIPS_PB1550
57 bool "AMD Alchemy PB1550 board"
58 select SOC_AU1550
59 select DMA_NONCOHERENT
60 select HW_HAS_PCI
61 select MIPS_DISABLE_OBSOLETE_IDE
62 select SYS_HAS_CPU_MIPS32_R1
63 select SYS_SUPPORTS_LITTLE_ENDIAN
65 config MIPS_PB1200
66 bool "AMD Alchemy PB1200 board"
67 select SOC_AU1200
68 select DMA_NONCOHERENT
69 select MIPS_DISABLE_OBSOLETE_IDE
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_SUPPORTS_LITTLE_ENDIAN
73 config MIPS_DB1000
74 bool "AMD Alchemy DB1000 board"
75 select SOC_AU1000
76 select DMA_NONCOHERENT
77 select HW_HAS_PCI
78 select SYS_HAS_CPU_MIPS32_R1
79 select SYS_SUPPORTS_LITTLE_ENDIAN
81 config MIPS_DB1100
82 bool "AMD Alchemy DB1100 board"
83 select SOC_AU1100
84 select DMA_NONCOHERENT
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_SUPPORTS_LITTLE_ENDIAN
88 config MIPS_DB1500
89 bool "AMD Alchemy DB1500 board"
90 select SOC_AU1500
91 select DMA_NONCOHERENT
92 select HW_HAS_PCI
93 select MIPS_DISABLE_OBSOLETE_IDE
94 select SYS_HAS_CPU_MIPS32_R1
95 select SYS_SUPPORTS_BIG_ENDIAN
96 select SYS_SUPPORTS_LITTLE_ENDIAN
98 config MIPS_DB1550
99 bool "AMD Alchemy DB1550 board"
100 select SOC_AU1550
101 select HW_HAS_PCI
102 select DMA_NONCOHERENT
103 select MIPS_DISABLE_OBSOLETE_IDE
104 select SYS_HAS_CPU_MIPS32_R1
105 select SYS_SUPPORTS_LITTLE_ENDIAN
107 config MIPS_DB1200
108 bool "AMD Alchemy DB1200 board"
109 select SOC_AU1200
110 select DMA_COHERENT
111 select MIPS_DISABLE_OBSOLETE_IDE
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_SUPPORTS_LITTLE_ENDIAN
115 config MIPS_MIRAGE
116 bool "AMD Alchemy Mirage board"
117 select DMA_NONCOHERENT
118 select SOC_AU1500
119 select SYS_HAS_CPU_MIPS32_R1
120 select SYS_SUPPORTS_LITTLE_ENDIAN
122 config BASLER_EXCITE
123 bool "Basler eXcite smart camera support"
124 select DMA_COHERENT
125 select HW_HAS_PCI
126 select IRQ_CPU
127 select IRQ_CPU_RM7K
128 select IRQ_CPU_RM9K
129 select SERIAL_RM9000
130 select SYS_HAS_CPU_RM9000
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_64BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 help
135 The eXcite is a smart camera platform manufactured by
136 Basler Vision Technologies AG
138 config BASLER_EXCITE_PROTOTYPE
139 bool "Support for pre-release units"
140 depends on BASLER_EXCITE
141 default n
142 help
143 Pre-series (prototype) units are different from later ones in
144 some ways. Select this option if you have one of these. Please
145 note that a kernel built with this option selected will not be
146 able to run on normal units.
148 config MIPS_COBALT
149 bool "Cobalt Server"
150 select DMA_NONCOHERENT
151 select HW_HAS_PCI
152 select I8259
153 select IRQ_CPU
154 select MIPS_GT64111
155 select SYS_HAS_CPU_NEVADA
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
160 config MACH_DECSTATION
161 bool "DECstations"
162 select BOOT_ELF32
163 select DMA_NONCOHERENT
164 select EARLY_PRINTK
165 select IRQ_CPU
166 select SYS_HAS_CPU_R3000
167 select SYS_HAS_CPU_R4X00
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
170 select SYS_SUPPORTS_LITTLE_ENDIAN
171 select SYS_SUPPORTS_128HZ
172 select SYS_SUPPORTS_256HZ
173 select SYS_SUPPORTS_1024HZ
174 help
175 This enables support for DEC's MIPS based workstations. For details
176 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
177 DECstation porting pages on <http://decstation.unix-ag.org/>.
179 If you have one of the following DECstation Models you definitely
180 want to choose R4xx0 for the CPU Type:
182 DECstation 5000/50
183 DECstation 5000/150
184 DECstation 5000/260
185 DECsystem 5900/260
187 otherwise choose R3000.
189 config MIPS_EV64120
190 bool "Galileo EV64120 Evaluation board (EXPERIMENTAL)"
191 depends on EXPERIMENTAL
192 select DMA_NONCOHERENT
193 select HW_HAS_PCI
194 select MIPS_GT64120
195 select SYS_HAS_CPU_R5000
196 select SYS_SUPPORTS_32BIT_KERNEL
197 select SYS_SUPPORTS_64BIT_KERNEL
198 select SYS_SUPPORTS_BIG_ENDIAN
199 help
200 This is an evaluation board based on the Galileo GT-64120
201 single-chip system controller that contains a MIPS R5000 compatible
202 core running at 75/100MHz. Their website is located at
203 <http://www.marvell.com/>. Say Y here if you wish to build a
204 kernel for this platform.
206 config MIPS_EV96100
207 bool "Galileo EV96100 Evaluation board (EXPERIMENTAL)"
208 depends on EXPERIMENTAL
209 select DMA_NONCOHERENT
210 select HW_HAS_PCI
211 select IRQ_CPU
212 select MIPS_GT96100
213 select RM7000_CPU_SCACHE
214 select SWAP_IO_SPACE
215 select SYS_HAS_CPU_R5000
216 select SYS_HAS_CPU_RM7000
217 select SYS_SUPPORTS_32BIT_KERNEL
218 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
219 select SYS_SUPPORTS_BIG_ENDIAN
220 help
221 This is an evaluation board based on the Galileo GT-96100 LAN/WAN
222 communications controllers containing a MIPS R5000 compatible core
223 running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
224 here if you wish to build a kernel for this platform.
226 config MIPS_IVR
227 bool "Globespan IVR board"
228 select DMA_NONCOHERENT
229 select HW_HAS_PCI
230 select ITE_BOARD_GEN
231 select SYS_HAS_CPU_NEVADA
232 select SYS_SUPPORTS_32BIT_KERNEL
233 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
234 select SYS_SUPPORTS_LITTLE_ENDIAN
235 help
236 This is an evaluation board built by Globespan to showcase thir
237 iVR (Internet Video Recorder) design. It utilizes a QED RM5231
238 R5000 MIPS core. More information can be found out their website
239 located at <http://www.globespan.net/>. Say Y here if you wish to
240 build a kernel for this platform.
242 config MIPS_ITE8172
243 bool "ITE 8172G board"
244 select DMA_NONCOHERENT
245 select HW_HAS_PCI
246 select ITE_BOARD_GEN
247 select SYS_HAS_CPU_R5432
248 select SYS_HAS_CPU_NEVADA
249 select SYS_SUPPORTS_32BIT_KERNEL
250 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
251 select SYS_SUPPORTS_LITTLE_ENDIAN
252 help
253 Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
254 with ATX form factor that utilizes a MIPS R5000 to work with its
255 ITE8172G companion internet appliance chip. The MIPS core can be
256 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
257 a kernel for this platform.
259 config MACH_JAZZ
260 bool "Jazz family of machines"
261 select ARC
262 select ARC32
263 select ARCH_MAY_HAVE_PC_FDC
264 select GENERIC_ISA_DMA
265 select I8253
266 select I8259
267 select ISA
268 select SYS_HAS_CPU_R4X00
269 select SYS_SUPPORTS_32BIT_KERNEL
270 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
271 select SYS_SUPPORTS_100HZ
272 help
273 This a family of machines based on the MIPS R4030 chipset which was
274 used by several vendors to build RISC/os and Windows NT workstations.
275 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
276 Olivetti M700-10 workstations.
278 config LASAT
279 bool "LASAT Networks platforms"
280 select DMA_NONCOHERENT
281 select HW_HAS_PCI
282 select MIPS_GT64120
283 select MIPS_NILE4
284 select R5000_CPU_SCACHE
285 select SYS_HAS_CPU_R5000
286 select SYS_SUPPORTS_32BIT_KERNEL
287 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
288 select SYS_SUPPORTS_LITTLE_ENDIAN
290 config MIPS_ATLAS
291 bool "MIPS Atlas board"
292 select BOOT_ELF32
293 select DMA_NONCOHERENT
294 select IRQ_CPU
295 select HW_HAS_PCI
296 select MIPS_BOARDS_GEN
297 select MIPS_BONITO64
298 select MIPS_GT64120
299 select MIPS_MSC
300 select RM7000_CPU_SCACHE
301 select SWAP_IO_SPACE
302 select SYS_HAS_CPU_MIPS32_R1
303 select SYS_HAS_CPU_MIPS32_R2
304 select SYS_HAS_CPU_MIPS64_R1
305 select SYS_HAS_CPU_NEVADA
306 select SYS_HAS_CPU_RM7000
307 select SYS_SUPPORTS_32BIT_KERNEL
308 select SYS_SUPPORTS_64BIT_KERNEL
309 select SYS_SUPPORTS_BIG_ENDIAN
310 select SYS_SUPPORTS_LITTLE_ENDIAN
311 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
312 help
313 This enables support for the MIPS Technologies Atlas evaluation
314 board.
316 config MIPS_MALTA
317 bool "MIPS Malta board"
318 select ARCH_MAY_HAVE_PC_FDC
319 select BOOT_ELF32
320 select HAVE_STD_PC_SERIAL_PORT
321 select DMA_NONCOHERENT
322 select IRQ_CPU
323 select GENERIC_ISA_DMA
324 select HW_HAS_PCI
325 select I8259
326 select MIPS_BOARDS_GEN
327 select MIPS_BONITO64
328 select MIPS_CPU_SCACHE
329 select MIPS_GT64120
330 select MIPS_MSC
331 select SWAP_IO_SPACE
332 select SYS_HAS_CPU_MIPS32_R1
333 select SYS_HAS_CPU_MIPS32_R2
334 select SYS_HAS_CPU_MIPS64_R1
335 select SYS_HAS_CPU_NEVADA
336 select SYS_HAS_CPU_RM7000
337 select SYS_SUPPORTS_32BIT_KERNEL
338 select SYS_SUPPORTS_64BIT_KERNEL
339 select SYS_SUPPORTS_BIG_ENDIAN
340 select SYS_SUPPORTS_LITTLE_ENDIAN
341 select SYS_SUPPORTS_MULTITHREADING
342 help
343 This enables support for the MIPS Technologies Malta evaluation
344 board.
346 config MIPS_SEAD
347 bool "MIPS SEAD board (EXPERIMENTAL)"
348 depends on EXPERIMENTAL
349 select IRQ_CPU
350 select DMA_NONCOHERENT
351 select MIPS_BOARDS_GEN
352 select SYS_HAS_CPU_MIPS32_R1
353 select SYS_HAS_CPU_MIPS32_R2
354 select SYS_HAS_CPU_MIPS64_R1
355 select SYS_SUPPORTS_32BIT_KERNEL
356 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
357 select SYS_SUPPORTS_BIG_ENDIAN
358 select SYS_SUPPORTS_LITTLE_ENDIAN
359 help
360 This enables support for the MIPS Technologies SEAD evaluation
361 board.
363 config WR_PPMC
364 bool "Wind River PPMC board"
365 select IRQ_CPU
366 select BOOT_ELF32
367 select DMA_NONCOHERENT
368 select HW_HAS_PCI
369 select MIPS_GT64120
370 select SWAP_IO_SPACE
371 select SYS_HAS_CPU_MIPS32_R1
372 select SYS_HAS_CPU_MIPS32_R2
373 select SYS_HAS_CPU_MIPS64_R1
374 select SYS_HAS_CPU_NEVADA
375 select SYS_HAS_CPU_RM7000
376 select SYS_SUPPORTS_32BIT_KERNEL
377 select SYS_SUPPORTS_64BIT_KERNEL
378 select SYS_SUPPORTS_BIG_ENDIAN
379 select SYS_SUPPORTS_LITTLE_ENDIAN
380 help
381 This enables support for the Wind River MIPS32 4KC PPMC evaluation
382 board, which is based on GT64120 bridge chip.
384 config MIPS_SIM
385 bool 'MIPS simulator (MIPSsim)'
386 select DMA_NONCOHERENT
387 select IRQ_CPU
388 select SYS_HAS_CPU_MIPS32_R1
389 select SYS_HAS_CPU_MIPS32_R2
390 select SYS_SUPPORTS_32BIT_KERNEL
391 select SYS_SUPPORTS_BIG_ENDIAN
392 select SYS_SUPPORTS_LITTLE_ENDIAN
393 help
394 This option enables support for MIPS Technologies MIPSsim software
395 emulator.
397 config MOMENCO_JAGUAR_ATX
398 bool "Momentum Jaguar board"
399 select BOOT_ELF32
400 select DMA_NONCOHERENT
401 select HW_HAS_PCI
402 select IRQ_CPU
403 select IRQ_CPU_RM7K
404 select IRQ_MV64340
405 select LIMITED_DMA
406 select PCI_MARVELL
407 select RM7000_CPU_SCACHE
408 select SWAP_IO_SPACE
409 select SYS_HAS_CPU_RM9000
410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_64BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
413 help
414 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
415 Momentum Computer <http://www.momenco.com/>.
417 config MOMENCO_OCELOT
418 bool "Momentum Ocelot board"
419 select DMA_NONCOHERENT
420 select HW_HAS_PCI
421 select IRQ_CPU
422 select IRQ_CPU_RM7K
423 select MIPS_GT64120
424 select RM7000_CPU_SCACHE
425 select SWAP_IO_SPACE
426 select SYS_HAS_CPU_RM7000
427 select SYS_SUPPORTS_32BIT_KERNEL
428 select SYS_SUPPORTS_64BIT_KERNEL
429 select SYS_SUPPORTS_BIG_ENDIAN
430 help
431 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
432 Momentum Computer <http://www.momenco.com/>.
434 config MOMENCO_OCELOT_3
435 bool "Momentum Ocelot-3 board"
436 select BOOT_ELF32
437 select DMA_NONCOHERENT
438 select HW_HAS_PCI
439 select IRQ_CPU
440 select IRQ_CPU_RM7K
441 select IRQ_MV64340
442 select PCI_MARVELL
443 select RM7000_CPU_SCACHE
444 select SWAP_IO_SPACE
445 select SYS_HAS_CPU_RM9000
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_64BIT_KERNEL
448 select SYS_SUPPORTS_BIG_ENDIAN
449 help
450 The Ocelot-3 is based off Discovery III System Controller and
451 PMC-Sierra Rm79000 core.
453 config MOMENCO_OCELOT_C
454 bool "Momentum Ocelot-C board"
455 select DMA_NONCOHERENT
456 select HW_HAS_PCI
457 select IRQ_CPU
458 select IRQ_MV64340
459 select PCI_MARVELL
460 select RM7000_CPU_SCACHE
461 select SWAP_IO_SPACE
462 select SYS_HAS_CPU_RM7000
463 select SYS_SUPPORTS_32BIT_KERNEL
464 select SYS_SUPPORTS_64BIT_KERNEL
465 select SYS_SUPPORTS_BIG_ENDIAN
466 help
467 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
468 Momentum Computer <http://www.momenco.com/>.
470 config MOMENCO_OCELOT_G
471 bool "Momentum Ocelot-G board"
472 select DMA_NONCOHERENT
473 select HW_HAS_PCI
474 select IRQ_CPU
475 select IRQ_CPU_RM7K
476 select PCI_MARVELL
477 select RM7000_CPU_SCACHE
478 select SWAP_IO_SPACE
479 select SYS_HAS_CPU_RM7000
480 select SYS_SUPPORTS_32BIT_KERNEL
481 select SYS_SUPPORTS_64BIT_KERNEL
482 select SYS_SUPPORTS_BIG_ENDIAN
483 select ARCH_SPARSEMEM_ENABLE
484 help
485 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
486 Momentum Computer <http://www.momenco.com/>.
488 config MIPS_XXS1500
489 bool "MyCable XXS1500 board"
490 select DMA_NONCOHERENT
491 select SOC_AU1500
492 select SYS_SUPPORTS_LITTLE_ENDIAN
494 config PNX8550_V2PCI
495 bool "Philips PNX8550 based Viper2-PCI board"
496 depends on BROKEN
497 select PNX8550
498 select SYS_SUPPORTS_LITTLE_ENDIAN
500 config PNX8550_JBS
501 bool "Philips PNX8550 based JBS board"
502 depends on BROKEN
503 select PNX8550
504 select SYS_SUPPORTS_LITTLE_ENDIAN
506 config DDB5477
507 bool "NEC DDB Vrc-5477"
508 select DDB5XXX_COMMON
509 select DMA_NONCOHERENT
510 select HW_HAS_PCI
511 select I8259
512 select IRQ_CPU
513 select SYS_HAS_CPU_R5432
514 select SYS_SUPPORTS_32BIT_KERNEL
515 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
516 select SYS_SUPPORTS_LITTLE_ENDIAN
517 help
518 This enables support for the R5432-based NEC DDB Vrc-5477,
519 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
521 Features : kernel debugging, serial terminal, NFS root fs, on-board
522 ether port USB, AC97, PCI, etc.
524 config MACH_VR41XX
525 bool "NEC VR41XX-based machines"
526 select SYS_HAS_CPU_VR41XX
527 select SYS_SUPPORTS_32BIT_KERNEL
528 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
530 config PMC_YOSEMITE
531 bool "PMC-Sierra Yosemite eval board"
532 select DMA_COHERENT
533 select HW_HAS_PCI
534 select IRQ_CPU
535 select IRQ_CPU_RM7K
536 select IRQ_CPU_RM9K
537 select SWAP_IO_SPACE
538 select SYS_HAS_CPU_RM9000
539 select SYS_SUPPORTS_32BIT_KERNEL
540 select SYS_SUPPORTS_64BIT_KERNEL
541 select SYS_SUPPORTS_BIG_ENDIAN
542 select SYS_SUPPORTS_HIGHMEM
543 select SYS_SUPPORTS_SMP
544 help
545 Yosemite is an evaluation board for the RM9000x2 processor
546 manufactured by PMC-Sierra.
548 config QEMU
549 bool "Qemu"
550 select DMA_COHERENT
551 select GENERIC_ISA_DMA
552 select HAVE_STD_PC_SERIAL_PORT
553 select I8253
554 select I8259
555 select ISA
556 select SWAP_IO_SPACE
557 select SYS_HAS_CPU_MIPS32_R1
558 select SYS_SUPPORTS_32BIT_KERNEL
559 select SYS_SUPPORTS_BIG_ENDIAN
560 select ARCH_SPARSEMEM_ENABLE
561 help
562 Qemu is a software emulator which among other architectures also
563 can simulate a MIPS32 4Kc system. This patch adds support for the
564 system architecture that currently is being simulated by Qemu. It
565 will eventually be removed again when Qemu has the capability to
566 simulate actual MIPS hardware platforms. More information on Qemu
567 can be found at http://www.linux-mips.org/wiki/Qemu.
569 config MARKEINS
570 bool "Support for NEC EMMA2RH Mark-eins"
571 select DMA_NONCOHERENT
572 select HW_HAS_PCI
573 select IRQ_CPU
574 select SWAP_IO_SPACE
575 select SYS_SUPPORTS_32BIT_KERNEL
576 select SYS_SUPPORTS_BIG_ENDIAN
577 select SYS_SUPPORTS_LITTLE_ENDIAN
578 select SYS_HAS_CPU_R5000
579 help
580 This enables support for the R5432-based NEC Mark-eins
581 boards with R5500 CPU.
583 config SGI_IP22
584 bool "SGI IP22 (Indy/Indigo2)"
585 select ARC
586 select ARC32
587 select BOOT_ELF32
588 select DMA_NONCOHERENT
589 select HW_HAS_EISA
590 select IP22_CPU_SCACHE
591 select IRQ_CPU
592 select NO_ISA if ISA
593 select SWAP_IO_SPACE
594 select SYS_HAS_CPU_R4X00
595 select SYS_HAS_CPU_R5000
596 select SYS_SUPPORTS_32BIT_KERNEL
597 select SYS_SUPPORTS_64BIT_KERNEL
598 select SYS_SUPPORTS_BIG_ENDIAN
599 help
600 This are the SGI Indy, Challenge S and Indigo2, as well as certain
601 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
602 that runs on these, say Y here.
604 config SGI_IP27
605 bool "SGI IP27 (Origin200/2000)"
606 select ARC
607 select ARC64
608 select BOOT_ELF64
609 select DMA_IP27
610 select EARLY_PRINTK
611 select HW_HAS_PCI
612 select PCI_DOMAINS
613 select SYS_HAS_CPU_R10000
614 select SYS_SUPPORTS_64BIT_KERNEL
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_NUMA
617 help
618 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
619 workstations. To compile a Linux kernel that runs on these, say Y
620 here.
622 config SGI_IP32
623 bool "SGI IP32 (O2) (EXPERIMENTAL)"
624 depends on EXPERIMENTAL
625 select ARC
626 select ARC32
627 select BOOT_ELF32
628 select OWN_DMA
629 select DMA_IP32
630 select DMA_NONCOHERENT
631 select HW_HAS_PCI
632 select R5000_CPU_SCACHE
633 select RM7000_CPU_SCACHE
634 select SYS_HAS_CPU_R5000
635 select SYS_HAS_CPU_R10000 if BROKEN
636 select SYS_HAS_CPU_RM7000
637 select SYS_HAS_CPU_NEVADA
638 select SYS_SUPPORTS_64BIT_KERNEL
639 select SYS_SUPPORTS_BIG_ENDIAN
640 help
641 If you want this kernel to run on SGI O2 workstation, say Y here.
643 config SIBYTE_BIGSUR
644 bool "Sibyte BCM91480B-BigSur"
645 select BOOT_ELF32
646 select DMA_COHERENT
647 select PCI_DOMAINS
648 select SIBYTE_BCM1x80
649 select SWAP_IO_SPACE
650 select SYS_HAS_CPU_SB1
651 select SYS_SUPPORTS_BIG_ENDIAN
652 select SYS_SUPPORTS_LITTLE_ENDIAN
654 config SIBYTE_SWARM
655 bool "Sibyte BCM91250A-SWARM"
656 select BOOT_ELF32
657 select DMA_COHERENT
658 select SIBYTE_SB1250
659 select SWAP_IO_SPACE
660 select SYS_HAS_CPU_SB1
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_HIGHMEM
663 select SYS_SUPPORTS_LITTLE_ENDIAN
665 config SIBYTE_SENTOSA
666 bool "Sibyte BCM91250E-Sentosa"
667 depends on EXPERIMENTAL
668 select BOOT_ELF32
669 select DMA_COHERENT
670 select SIBYTE_SB1250
671 select SWAP_IO_SPACE
672 select SYS_HAS_CPU_SB1
673 select SYS_SUPPORTS_BIG_ENDIAN
674 select SYS_SUPPORTS_LITTLE_ENDIAN
676 config SIBYTE_RHONE
677 bool "Sibyte BCM91125E-Rhone"
678 depends on EXPERIMENTAL
679 select BOOT_ELF32
680 select DMA_COHERENT
681 select SIBYTE_BCM1125H
682 select SWAP_IO_SPACE
683 select SYS_HAS_CPU_SB1
684 select SYS_SUPPORTS_BIG_ENDIAN
685 select SYS_SUPPORTS_LITTLE_ENDIAN
687 config SIBYTE_CARMEL
688 bool "Sibyte BCM91120x-Carmel"
689 depends on EXPERIMENTAL
690 select BOOT_ELF32
691 select DMA_COHERENT
692 select SIBYTE_BCM1120
693 select SWAP_IO_SPACE
694 select SYS_HAS_CPU_SB1
695 select SYS_SUPPORTS_BIG_ENDIAN
696 select SYS_SUPPORTS_LITTLE_ENDIAN
698 config SIBYTE_PTSWARM
699 bool "Sibyte BCM91250PT-PTSWARM"
700 depends on EXPERIMENTAL
701 select BOOT_ELF32
702 select DMA_COHERENT
703 select SIBYTE_SB1250
704 select SWAP_IO_SPACE
705 select SYS_HAS_CPU_SB1
706 select SYS_SUPPORTS_BIG_ENDIAN
707 select SYS_SUPPORTS_HIGHMEM
708 select SYS_SUPPORTS_LITTLE_ENDIAN
710 config SIBYTE_LITTLESUR
711 bool "Sibyte BCM91250C2-LittleSur"
712 depends on EXPERIMENTAL
713 select BOOT_ELF32
714 select DMA_COHERENT
715 select SIBYTE_SB1250
716 select SWAP_IO_SPACE
717 select SYS_HAS_CPU_SB1
718 select SYS_SUPPORTS_BIG_ENDIAN
719 select SYS_SUPPORTS_HIGHMEM
720 select SYS_SUPPORTS_LITTLE_ENDIAN
722 config SIBYTE_CRHINE
723 bool "Sibyte BCM91120C-CRhine"
724 depends on EXPERIMENTAL
725 select BOOT_ELF32
726 select DMA_COHERENT
727 select SIBYTE_BCM1120
728 select SWAP_IO_SPACE
729 select SYS_HAS_CPU_SB1
730 select SYS_SUPPORTS_BIG_ENDIAN
731 select SYS_SUPPORTS_LITTLE_ENDIAN
733 config SIBYTE_CRHONE
734 bool "Sibyte BCM91125C-CRhone"
735 depends on EXPERIMENTAL
736 select BOOT_ELF32
737 select DMA_COHERENT
738 select SIBYTE_BCM1125
739 select SWAP_IO_SPACE
740 select SYS_HAS_CPU_SB1
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HIGHMEM
743 select SYS_SUPPORTS_LITTLE_ENDIAN
745 config SNI_RM200_PCI
746 bool "SNI RM200 PCI"
747 select ARC if CPU_LITTLE_ENDIAN
748 select ARC32 if CPU_LITTLE_ENDIAN
749 select ARCH_MAY_HAVE_PC_FDC
750 select BOOT_ELF32
751 select DMA_NONCOHERENT
752 select GENERIC_ISA_DMA
753 select HAVE_STD_PC_SERIAL_PORT
754 select HW_HAS_EISA
755 select HW_HAS_PCI
756 select I8253
757 select I8259
758 select ISA
759 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
760 select SYS_HAS_CPU_R4X00
761 select SYS_HAS_CPU_R5000
762 select R5000_CPU_SCACHE
763 select SYS_SUPPORTS_32BIT_KERNEL
764 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_HIGHMEM
767 select SYS_SUPPORTS_LITTLE_ENDIAN
768 help
769 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
770 Nixdorf Informationssysteme (SNI), parent company of Pyramid
771 Technology and now in turn merged with Fujitsu. Say Y here to
772 support this machine type.
774 config TOSHIBA_JMR3927
775 bool "Toshiba JMR-TX3927 board"
776 select DMA_NONCOHERENT
777 select HW_HAS_PCI
778 select MIPS_TX3927
779 select SWAP_IO_SPACE
780 select SYS_HAS_CPU_TX39XX
781 select SYS_SUPPORTS_32BIT_KERNEL
782 select SYS_SUPPORTS_BIG_ENDIAN
783 select TOSHIBA_BOARDS
785 config TOSHIBA_RBTX4927
786 bool "Toshiba TBTX49[23]7 board"
787 select DMA_NONCOHERENT
788 select HAS_TXX9_SERIAL
789 select HW_HAS_PCI
790 select I8259
791 select ISA
792 select SWAP_IO_SPACE
793 select SYS_HAS_CPU_TX49XX
794 select SYS_SUPPORTS_32BIT_KERNEL
795 select SYS_SUPPORTS_64BIT_KERNEL
796 select SYS_SUPPORTS_BIG_ENDIAN
797 select TOSHIBA_BOARDS
798 help
799 This Toshiba board is based on the TX4927 processor. Say Y here to
800 support this machine type
802 config TOSHIBA_RBTX4938
803 bool "Toshiba RBTX4938 board"
804 select HAVE_STD_PC_SERIAL_PORT
805 select DMA_NONCOHERENT
806 select GENERIC_ISA_DMA
807 select HAS_TXX9_SERIAL
808 select HW_HAS_PCI
809 select I8259
810 select ISA
811 select SWAP_IO_SPACE
812 select SYS_HAS_CPU_TX49XX
813 select SYS_SUPPORTS_32BIT_KERNEL
814 select SYS_SUPPORTS_LITTLE_ENDIAN
815 select SYS_SUPPORTS_BIG_ENDIAN
816 select TOSHIBA_BOARDS
817 help
818 This Toshiba board is based on the TX4938 processor. Say Y here to
819 support this machine type
821 endchoice
823 source "arch/mips/ddb5xxx/Kconfig"
824 source "arch/mips/gt64120/ev64120/Kconfig"
825 source "arch/mips/jazz/Kconfig"
826 source "arch/mips/ite-boards/Kconfig"
827 source "arch/mips/lasat/Kconfig"
828 source "arch/mips/momentum/Kconfig"
829 source "arch/mips/pmc-sierra/Kconfig"
830 source "arch/mips/sgi-ip27/Kconfig"
831 source "arch/mips/sibyte/Kconfig"
832 source "arch/mips/tx4927/Kconfig"
833 source "arch/mips/tx4938/Kconfig"
834 source "arch/mips/vr41xx/Kconfig"
835 source "arch/mips/philips/pnx8550/common/Kconfig"
836 source "arch/mips/cobalt/Kconfig"
838 endmenu
840 config RWSEM_GENERIC_SPINLOCK
841 bool
842 default y
844 config RWSEM_XCHGADD_ALGORITHM
845 bool
847 config GENERIC_FIND_NEXT_BIT
848 bool
849 default y
851 config GENERIC_HWEIGHT
852 bool
853 default y
855 config GENERIC_CALIBRATE_DELAY
856 bool
857 default y
859 config SCHED_NO_NO_OMIT_FRAME_POINTER
860 bool
861 default y
863 #
864 # Select some configuration options automatically based on user selections.
865 #
866 config ARC
867 bool
869 config ARCH_MAY_HAVE_PC_FDC
870 bool
872 config DMA_COHERENT
873 bool
875 config DMA_IP27
876 bool
878 config DMA_IP32
879 bool
880 select DMA_NEED_PCI_MAP_STATE
882 config DMA_NONCOHERENT
883 bool
884 select DMA_NEED_PCI_MAP_STATE
886 config DMA_NEED_PCI_MAP_STATE
887 bool
889 config OWN_DMA
890 bool
892 config EARLY_PRINTK
893 bool
895 config GENERIC_ISA_DMA
896 bool
898 config I8259
899 bool
901 config LIMITED_DMA
902 bool
903 select HIGHMEM
904 select SYS_SUPPORTS_HIGHMEM
906 config MIPS_BONITO64
907 bool
909 config MIPS_MSC
910 bool
912 config MIPS_NILE4
913 bool
915 config MIPS_DISABLE_OBSOLETE_IDE
916 bool
918 #
919 # Endianess selection. Suffiently obscure so many users don't know what to
920 # answer,so we try hard to limit the available choices. Also the use of a
921 # choice statement should be more obvious to the user.
922 #
923 choice
924 prompt "Endianess selection"
925 help
926 Some MIPS machines can be configured for either little or big endian
927 byte order. These modes require different kernels and a different
928 Linux distribution. In general there is one prefered byteorder for a
929 particular system but some systems are just as commonly used in the
930 one or the other endianess.
932 config CPU_BIG_ENDIAN
933 bool "Big endian"
934 depends on SYS_SUPPORTS_BIG_ENDIAN
936 config CPU_LITTLE_ENDIAN
937 bool "Little endian"
938 depends on SYS_SUPPORTS_LITTLE_ENDIAN
939 help
941 endchoice
943 config SYS_SUPPORTS_BIG_ENDIAN
944 bool
946 config SYS_SUPPORTS_LITTLE_ENDIAN
947 bool
949 config IRQ_CPU
950 bool
952 config IRQ_CPU_RM7K
953 bool
955 config IRQ_CPU_RM9K
956 bool
958 config IRQ_MV64340
959 bool
961 config DDB5XXX_COMMON
962 bool
964 config MIPS_BOARDS_GEN
965 bool
967 config MIPS_GT64111
968 bool
970 config MIPS_GT64120
971 bool
973 config MIPS_TX3927
974 bool
975 select HAS_TXX9_SERIAL
977 config PCI_MARVELL
978 bool
980 config ITE_BOARD_GEN
981 bool
983 config SOC_AU1000
984 bool
985 select SOC_AU1X00
987 config SOC_AU1100
988 bool
989 select SOC_AU1X00
991 config SOC_AU1500
992 bool
993 select SOC_AU1X00
995 config SOC_AU1550
996 bool
997 select SOC_AU1X00
999 config SOC_AU1200
1000 bool
1001 select SOC_AU1X00
1003 config SOC_AU1X00
1004 bool
1005 select SYS_HAS_CPU_MIPS32_R1
1006 select SYS_SUPPORTS_32BIT_KERNEL
1008 config PNX8550
1009 bool
1010 select SOC_PNX8550
1012 config SOC_PNX8550
1013 bool
1014 select DMA_NONCOHERENT
1015 select HW_HAS_PCI
1016 select SYS_HAS_CPU_MIPS32_R1
1017 select SYS_SUPPORTS_32BIT_KERNEL
1019 config SWAP_IO_SPACE
1020 bool
1022 config EMMA2RH
1023 bool
1024 depends on MARKEINS
1025 default y
1028 # Unfortunately not all GT64120 systems run the chip at the same clock.
1029 # As the user for the clock rate and try to minimize the available options.
1031 choice
1032 prompt "Galileo Chip Clock"
1033 #default SYSCLK_83 if MIPS_EV64120
1034 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1035 default SYSCLK_83 if MIPS_EV64120
1036 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1038 config SYSCLK_75
1039 bool "75" if MIPS_EV64120
1041 config SYSCLK_83
1042 bool "83.3" if MIPS_EV64120
1044 config SYSCLK_100
1045 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1047 endchoice
1049 config ARC32
1050 bool
1052 config AU1X00_USB_DEVICE
1053 bool
1054 depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
1055 default n
1057 config MIPS_GT96100
1058 bool
1059 select MIPS_GT64120
1061 config IT8172_CIR
1062 bool
1063 depends on MIPS_ITE8172 || MIPS_IVR
1064 default y
1066 config IT8712
1067 bool
1068 depends on MIPS_ITE8172
1069 default y
1071 config BOOT_ELF32
1072 bool
1074 config MIPS_L1_CACHE_SHIFT
1075 int
1076 default "4" if MACH_DECSTATION
1077 default "7" if SGI_IP27
1078 default "5"
1080 config HAVE_STD_PC_SERIAL_PORT
1081 bool
1083 config ARC_CONSOLE
1084 bool "ARC console support"
1085 depends on SGI_IP22 || SNI_RM200_PCI
1087 config ARC_MEMORY
1088 bool
1089 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
1090 default y
1092 config ARC_PROMLIB
1093 bool
1094 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1095 default y
1097 config ARC64
1098 bool
1100 config BOOT_ELF64
1101 bool
1103 config TOSHIBA_BOARDS
1104 bool
1106 menu "CPU selection"
1108 choice
1109 prompt "CPU type"
1110 default CPU_R4X00
1112 config CPU_MIPS32_R1
1113 bool "MIPS32 Release 1"
1114 depends on SYS_HAS_CPU_MIPS32_R1
1115 select CPU_HAS_LLSC
1116 select CPU_HAS_PREFETCH
1117 select CPU_SUPPORTS_32BIT_KERNEL
1118 select CPU_SUPPORTS_HIGHMEM
1119 help
1120 Choose this option to build a kernel for release 1 or later of the
1121 MIPS32 architecture. Most modern embedded systems with a 32-bit
1122 MIPS processor are based on a MIPS32 processor. If you know the
1123 specific type of processor in your system, choose those that one
1124 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1125 Release 2 of the MIPS32 architecture is available since several
1126 years so chances are you even have a MIPS32 Release 2 processor
1127 in which case you should choose CPU_MIPS32_R2 instead for better
1128 performance.
1130 config CPU_MIPS32_R2
1131 bool "MIPS32 Release 2"
1132 depends on SYS_HAS_CPU_MIPS32_R2
1133 select CPU_HAS_LLSC
1134 select CPU_HAS_PREFETCH
1135 select CPU_SUPPORTS_32BIT_KERNEL
1136 select CPU_SUPPORTS_HIGHMEM
1137 help
1138 Choose this option to build a kernel for release 2 or later of the
1139 MIPS32 architecture. Most modern embedded systems with a 32-bit
1140 MIPS processor are based on a MIPS32 processor. If you know the
1141 specific type of processor in your system, choose those that one
1142 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1144 config CPU_MIPS64_R1
1145 bool "MIPS64 Release 1"
1146 depends on SYS_HAS_CPU_MIPS64_R1
1147 select CPU_HAS_LLSC
1148 select CPU_HAS_PREFETCH
1149 select CPU_SUPPORTS_32BIT_KERNEL
1150 select CPU_SUPPORTS_64BIT_KERNEL
1151 select CPU_SUPPORTS_HIGHMEM
1152 help
1153 Choose this option to build a kernel for release 1 or later of the
1154 MIPS64 architecture. Many modern embedded systems with a 64-bit
1155 MIPS processor are based on a MIPS64 processor. If you know the
1156 specific type of processor in your system, choose those that one
1157 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1158 Release 2 of the MIPS64 architecture is available since several
1159 years so chances are you even have a MIPS64 Release 2 processor
1160 in which case you should choose CPU_MIPS64_R2 instead for better
1161 performance.
1163 config CPU_MIPS64_R2
1164 bool "MIPS64 Release 2"
1165 depends on SYS_HAS_CPU_MIPS64_R2
1166 select CPU_HAS_LLSC
1167 select CPU_HAS_PREFETCH
1168 select CPU_SUPPORTS_32BIT_KERNEL
1169 select CPU_SUPPORTS_64BIT_KERNEL
1170 select CPU_SUPPORTS_HIGHMEM
1171 help
1172 Choose this option to build a kernel for release 2 or later of the
1173 MIPS64 architecture. Many modern embedded systems with a 64-bit
1174 MIPS processor are based on a MIPS64 processor. If you know the
1175 specific type of processor in your system, choose those that one
1176 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1178 config CPU_R3000
1179 bool "R3000"
1180 depends on SYS_HAS_CPU_R3000
1181 select CPU_HAS_WB
1182 select CPU_SUPPORTS_32BIT_KERNEL
1183 select CPU_SUPPORTS_HIGHMEM
1184 help
1185 Please make sure to pick the right CPU type. Linux/MIPS is not
1186 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1187 *not* work on R4000 machines and vice versa. However, since most
1188 of the supported machines have an R4000 (or similar) CPU, R4x00
1189 might be a safe bet. If the resulting kernel does not work,
1190 try to recompile with R3000.
1192 config CPU_TX39XX
1193 bool "R39XX"
1194 depends on SYS_HAS_CPU_TX39XX
1195 select CPU_SUPPORTS_32BIT_KERNEL
1197 config CPU_VR41XX
1198 bool "R41xx"
1199 depends on SYS_HAS_CPU_VR41XX
1200 select CPU_SUPPORTS_32BIT_KERNEL
1201 select CPU_SUPPORTS_64BIT_KERNEL
1202 help
1203 The options selects support for the NEC VR4100 series of processors.
1204 Only choose this option if you have one of these processors as a
1205 kernel built with this option will not run on any other type of
1206 processor or vice versa.
1208 config CPU_R4300
1209 bool "R4300"
1210 depends on SYS_HAS_CPU_R4300
1211 select CPU_HAS_LLSC
1212 select CPU_SUPPORTS_32BIT_KERNEL
1213 select CPU_SUPPORTS_64BIT_KERNEL
1214 help
1215 MIPS Technologies R4300-series processors.
1217 config CPU_R4X00
1218 bool "R4x00"
1219 depends on SYS_HAS_CPU_R4X00
1220 select CPU_HAS_LLSC
1221 select CPU_SUPPORTS_32BIT_KERNEL
1222 select CPU_SUPPORTS_64BIT_KERNEL
1223 help
1224 MIPS Technologies R4000-series processors other than 4300, including
1225 the R4000, R4400, R4600, and 4700.
1227 config CPU_TX49XX
1228 bool "R49XX"
1229 depends on SYS_HAS_CPU_TX49XX
1230 select CPU_HAS_LLSC
1231 select CPU_HAS_PREFETCH
1232 select CPU_SUPPORTS_32BIT_KERNEL
1233 select CPU_SUPPORTS_64BIT_KERNEL
1235 config CPU_R5000
1236 bool "R5000"
1237 depends on SYS_HAS_CPU_R5000
1238 select CPU_HAS_LLSC
1239 select CPU_SUPPORTS_32BIT_KERNEL
1240 select CPU_SUPPORTS_64BIT_KERNEL
1241 help
1242 MIPS Technologies R5000-series processors other than the Nevada.
1244 config CPU_R5432
1245 bool "R5432"
1246 depends on SYS_HAS_CPU_R5432
1247 select CPU_HAS_LLSC
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_64BIT_KERNEL
1251 config CPU_R6000
1252 bool "R6000"
1253 depends on EXPERIMENTAL
1254 select CPU_HAS_LLSC
1255 depends on SYS_HAS_CPU_R6000
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 help
1258 MIPS Technologies R6000 and R6000A series processors. Note these
1259 processors are extremely rare and the support for them is incomplete.
1261 config CPU_NEVADA
1262 bool "RM52xx"
1263 depends on SYS_HAS_CPU_NEVADA
1264 select CPU_HAS_LLSC
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_64BIT_KERNEL
1267 help
1268 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1270 config CPU_R8000
1271 bool "R8000"
1272 depends on EXPERIMENTAL
1273 depends on SYS_HAS_CPU_R8000
1274 select CPU_HAS_LLSC
1275 select CPU_HAS_PREFETCH
1276 select CPU_SUPPORTS_64BIT_KERNEL
1277 help
1278 MIPS Technologies R8000 processors. Note these processors are
1279 uncommon and the support for them is incomplete.
1281 config CPU_R10000
1282 bool "R10000"
1283 depends on SYS_HAS_CPU_R10000
1284 select CPU_HAS_LLSC
1285 select CPU_HAS_PREFETCH
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1289 help
1290 MIPS Technologies R10000-series processors.
1292 config CPU_RM7000
1293 bool "RM7000"
1294 depends on SYS_HAS_CPU_RM7000
1295 select CPU_HAS_LLSC
1296 select CPU_HAS_PREFETCH
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 select CPU_SUPPORTS_64BIT_KERNEL
1299 select CPU_SUPPORTS_HIGHMEM
1301 config CPU_RM9000
1302 bool "RM9000"
1303 depends on SYS_HAS_CPU_RM9000
1304 select CPU_HAS_LLSC
1305 select CPU_HAS_PREFETCH
1306 select CPU_SUPPORTS_32BIT_KERNEL
1307 select CPU_SUPPORTS_64BIT_KERNEL
1308 select CPU_SUPPORTS_HIGHMEM
1310 config CPU_SB1
1311 bool "SB1"
1312 depends on SYS_HAS_CPU_SB1
1313 select CPU_HAS_LLSC
1314 select CPU_SUPPORTS_32BIT_KERNEL
1315 select CPU_SUPPORTS_64BIT_KERNEL
1316 select CPU_SUPPORTS_HIGHMEM
1318 endchoice
1320 config SYS_HAS_CPU_MIPS32_R1
1321 bool
1323 config SYS_HAS_CPU_MIPS32_R2
1324 bool
1326 config SYS_HAS_CPU_MIPS64_R1
1327 bool
1329 config SYS_HAS_CPU_MIPS64_R2
1330 bool
1332 config SYS_HAS_CPU_R3000
1333 bool
1335 config SYS_HAS_CPU_TX39XX
1336 bool
1338 config SYS_HAS_CPU_VR41XX
1339 bool
1341 config SYS_HAS_CPU_R4300
1342 bool
1344 config SYS_HAS_CPU_R4X00
1345 bool
1347 config SYS_HAS_CPU_TX49XX
1348 bool
1350 config SYS_HAS_CPU_R5000
1351 bool
1353 config SYS_HAS_CPU_R5432
1354 bool
1356 config SYS_HAS_CPU_R6000
1357 bool
1359 config SYS_HAS_CPU_NEVADA
1360 bool
1362 config SYS_HAS_CPU_R8000
1363 bool
1365 config SYS_HAS_CPU_R10000
1366 bool
1368 config SYS_HAS_CPU_RM7000
1369 bool
1371 config SYS_HAS_CPU_RM9000
1372 bool
1374 config SYS_HAS_CPU_SB1
1375 bool
1377 endmenu
1380 # These two indicate any level of the MIPS32 and MIPS64 architecture
1382 config CPU_MIPS32
1383 bool
1384 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1386 config CPU_MIPS64
1387 bool
1388 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1391 # These two indicate the revision of the architecture, either Release 1 or Release 2
1393 config CPU_MIPSR1
1394 bool
1395 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1397 config CPU_MIPSR2
1398 bool
1399 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1401 config SYS_SUPPORTS_32BIT_KERNEL
1402 bool
1403 config SYS_SUPPORTS_64BIT_KERNEL
1404 bool
1405 config CPU_SUPPORTS_32BIT_KERNEL
1406 bool
1407 config CPU_SUPPORTS_64BIT_KERNEL
1408 bool
1410 menu "Kernel type"
1412 choice
1414 prompt "Kernel code model"
1415 help
1416 You should only select this option if you have a workload that
1417 actually benefits from 64-bit processing or if your machine has
1418 large memory. You will only be presented a single option in this
1419 menu if your system does not support both 32-bit and 64-bit kernels.
1421 config 32BIT
1422 bool "32-bit kernel"
1423 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1424 select TRAD_SIGNALS
1425 help
1426 Select this option if you want to build a 32-bit kernel.
1427 config 64BIT
1428 bool "64-bit kernel"
1429 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1430 help
1431 Select this option if you want to build a 64-bit kernel.
1433 endchoice
1435 choice
1436 prompt "Kernel page size"
1437 default PAGE_SIZE_4KB
1439 config PAGE_SIZE_4KB
1440 bool "4kB"
1441 help
1442 This option select the standard 4kB Linux page size. On some
1443 R3000-family processors this is the only available page size. Using
1444 4kB page size will minimize memory consumption and is therefore
1445 recommended for low memory systems.
1447 config PAGE_SIZE_8KB
1448 bool "8kB"
1449 depends on EXPERIMENTAL && CPU_R8000
1450 help
1451 Using 8kB page size will result in higher performance kernel at
1452 the price of higher memory consumption. This option is available
1453 only on the R8000 processor. Not that at the time of this writing
1454 this option is still high experimental; there are also issues with
1455 compatibility of user applications.
1457 config PAGE_SIZE_16KB
1458 bool "16kB"
1459 depends on !CPU_R3000 && !CPU_TX39XX
1460 help
1461 Using 16kB page size will result in higher performance kernel at
1462 the price of higher memory consumption. This option is available on
1463 all non-R3000 family processors. Note that you will need a suitable
1464 Linux distribution to support this.
1466 config PAGE_SIZE_64KB
1467 bool "64kB"
1468 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1469 help
1470 Using 64kB page size will result in higher performance kernel at
1471 the price of higher memory consumption. This option is available on
1472 all non-R3000 family processor. Not that at the time of this
1473 writing this option is still high experimental.
1475 endchoice
1477 config BOARD_SCACHE
1478 bool
1480 config IP22_CPU_SCACHE
1481 bool
1482 select BOARD_SCACHE
1485 # Support for a MIPS32 / MIPS64 style S-caches
1487 config MIPS_CPU_SCACHE
1488 bool
1489 select BOARD_SCACHE
1491 config R5000_CPU_SCACHE
1492 bool
1493 select BOARD_SCACHE
1495 config RM7000_CPU_SCACHE
1496 bool
1497 select BOARD_SCACHE
1499 config SIBYTE_DMA_PAGEOPS
1500 bool "Use DMA to clear/copy pages"
1501 depends on CPU_SB1
1502 help
1503 Instead of using the CPU to zero and copy pages, use a Data Mover
1504 channel. These DMA channels are otherwise unused by the standard
1505 SiByte Linux port. Seems to give a small performance benefit.
1507 config CPU_HAS_PREFETCH
1508 bool
1510 choice
1511 prompt "MIPS MT options"
1513 config MIPS_MT_DISABLED
1514 bool "Disable multithreading support."
1515 help
1516 Use this option if your workload can't take advantage of
1517 MIPS hardware multithreading support. On systems that don't have
1518 the option of an MT-enabled processor this option will be the only
1519 option in this menu.
1521 config MIPS_MT_SMTC
1522 bool "SMTC: Use all TCs on all VPEs for SMP"
1523 depends on CPU_MIPS32_R2
1524 #depends on CPU_MIPS64_R2 # once there is hardware ...
1525 depends on SYS_SUPPORTS_MULTITHREADING
1526 select CPU_MIPSR2_IRQ_VI
1527 select CPU_MIPSR2_SRS
1528 select MIPS_MT
1529 select SMP
1530 help
1531 This is a kernel model which is known a SMTC or lately has been
1532 marketesed into SMVP.
1534 config MIPS_MT_SMP
1535 bool "Use 1 TC on each available VPE for SMP"
1536 depends on SYS_SUPPORTS_MULTITHREADING
1537 select CPU_MIPSR2_IRQ_VI
1538 select CPU_MIPSR2_SRS
1539 select MIPS_MT
1540 select SMP
1541 help
1542 This is a kernel model which is also known a VSMP or lately
1543 has been marketesed into SMVP.
1545 config MIPS_VPE_LOADER
1546 bool "VPE loader support."
1547 depends on SYS_SUPPORTS_MULTITHREADING
1548 select MIPS_MT
1549 help
1550 Includes a loader for loading an elf relocatable object
1551 onto another VPE and running it.
1553 endchoice
1555 config MIPS_MT
1556 bool
1558 config SYS_SUPPORTS_MULTITHREADING
1559 bool
1561 config MIPS_MT_FPAFF
1562 bool "Dynamic FPU affinity for FP-intensive threads"
1563 depends on MIPS_MT
1564 default y
1566 config MIPS_VPE_LOADER_TOM
1567 bool "Load VPE program into memory hidden from linux"
1568 depends on MIPS_VPE_LOADER
1569 default y
1570 help
1571 The loader can use memory that is present but has been hidden from
1572 Linux using the kernel command line option "mem=xxMB". It's up to
1573 you to ensure the amount you put in the option and the space your
1574 program requires is less or equal to the amount physically present.
1576 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1577 config MIPS_VPE_APSP_API
1578 bool "Enable support for AP/SP API (RTLX)"
1579 depends on MIPS_VPE_LOADER
1580 help
1582 config MIPS_APSP_KSPD
1583 bool "Enable KSPD"
1584 depends on MIPS_VPE_APSP_API
1585 default y
1586 help
1587 KSPD is a kernel daemon that accepts syscall requests from the SP
1588 side, actions them and returns the results. It also handles the
1589 "exit" syscall notifying other kernel modules the SP program is
1590 exiting. You probably want to say yes here.
1592 config SB1_PASS_1_WORKAROUNDS
1593 bool
1594 depends on CPU_SB1_PASS_1
1595 default y
1597 config SB1_PASS_2_WORKAROUNDS
1598 bool
1599 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1600 default y
1602 config SB1_PASS_2_1_WORKAROUNDS
1603 bool
1604 depends on CPU_SB1 && CPU_SB1_PASS_2
1605 default y
1607 config 64BIT_PHYS_ADDR
1608 bool "Support for 64-bit physical address space"
1609 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
1611 config CPU_HAS_LLSC
1612 bool
1614 config CPU_HAS_WB
1615 bool
1618 # Vectored interrupt mode is an R2 feature
1620 config CPU_MIPSR2_IRQ_VI
1621 bool
1624 # Extended interrupt mode is an R2 feature
1626 config CPU_MIPSR2_IRQ_EI
1627 bool
1630 # Shadow registers are an R2 feature
1632 config CPU_MIPSR2_SRS
1633 bool
1635 config CPU_HAS_SYNC
1636 bool
1637 depends on !CPU_R3000
1638 default y
1641 # Use the generic interrupt handling code in kernel/irq/:
1643 config GENERIC_HARDIRQS
1644 bool
1645 default y
1647 config GENERIC_IRQ_PROBE
1648 bool
1649 default y
1651 config IRQ_PER_CPU
1652 depends on SMP
1653 bool
1654 default y
1657 # - Highmem only makes sense for the 32-bit kernel.
1658 # - The current highmem code will only work properly on physically indexed
1659 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1660 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1661 # moment we protect the user and offer the highmem option only on machines
1662 # where it's known to be safe. This will not offer highmem on a few systems
1663 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1664 # indexed CPUs but we're playing safe.
1665 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1666 # know they might have memory configurations that could make use of highmem
1667 # support.
1669 config HIGHMEM
1670 bool "High Memory Support"
1671 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1673 config CPU_SUPPORTS_HIGHMEM
1674 bool
1676 config SYS_SUPPORTS_HIGHMEM
1677 bool
1679 config ARCH_FLATMEM_ENABLE
1680 def_bool y
1681 depends on !NUMA
1683 config ARCH_DISCONTIGMEM_ENABLE
1684 bool
1685 default y if SGI_IP27
1686 help
1687 Say Y to upport efficient handling of discontiguous physical memory,
1688 for architectures which are either NUMA (Non-Uniform Memory Access)
1689 or have huge holes in the physical address space for other reasons.
1690 See <file:Documentation/vm/numa> for more.
1692 config ARCH_SPARSEMEM_ENABLE
1693 bool
1695 config ARCH_SPARSEMEM_ENABLE
1696 bool
1697 select SPARSEMEM_STATIC
1699 config NUMA
1700 bool "NUMA Support"
1701 depends on SYS_SUPPORTS_NUMA
1702 help
1703 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1704 Access). This option improves performance on systems with more
1705 than two nodes; on two node systems it is generally better to
1706 leave it disabled; on single node systems disable this option
1707 disabled.
1709 config SYS_SUPPORTS_NUMA
1710 bool
1712 config NODES_SHIFT
1713 int
1714 default "6"
1715 depends on NEED_MULTIPLE_NODES
1717 source "mm/Kconfig"
1719 config SMP
1720 bool "Multi-Processing support"
1721 depends on SYS_SUPPORTS_SMP
1722 help
1723 This enables support for systems with more than one CPU. If you have
1724 a system with only one CPU, like most personal computers, say N. If
1725 you have a system with more than one CPU, say Y.
1727 If you say N here, the kernel will run on single and multiprocessor
1728 machines, but will use only one CPU of a multiprocessor machine. If
1729 you say Y here, the kernel will run on many, but not all,
1730 singleprocessor machines. On a singleprocessor machine, the kernel
1731 will run faster if you say N here.
1733 People using multiprocessor machines who say Y here should also say
1734 Y to "Enhanced Real Time Clock Support", below.
1736 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1737 available at <http://www.tldp.org/docs.html#howto>.
1739 If you don't know what to do here, say N.
1741 config SYS_SUPPORTS_SMP
1742 bool
1744 config NR_CPUS
1745 int "Maximum number of CPUs (2-64)"
1746 range 2 64
1747 depends on SMP
1748 default "64" if SGI_IP27
1749 default "2"
1750 help
1751 This allows you to specify the maximum number of CPUs which this
1752 kernel will support. The maximum supported value is 32 for 32-bit
1753 kernel and 64 for 64-bit kernels; the minimum value which makes
1754 sense is 2.
1756 This is purely to save memory - each supported CPU adds
1757 approximately eight kilobytes to the kernel image.
1760 # Timer Interrupt Frequency Configuration
1763 choice
1764 prompt "Timer frequency"
1765 default HZ_250
1766 help
1767 Allows the configuration of the timer frequency.
1769 config HZ_48
1770 bool "48 HZ" if SYS_SUPPORTS_48HZ
1772 config HZ_100
1773 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1775 config HZ_128
1776 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1778 config HZ_250
1779 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1781 config HZ_256
1782 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1784 config HZ_1000
1785 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1787 config HZ_1024
1788 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1790 endchoice
1792 config SYS_SUPPORTS_48HZ
1793 bool
1795 config SYS_SUPPORTS_100HZ
1796 bool
1798 config SYS_SUPPORTS_128HZ
1799 bool
1801 config SYS_SUPPORTS_250HZ
1802 bool
1804 config SYS_SUPPORTS_256HZ
1805 bool
1807 config SYS_SUPPORTS_1000HZ
1808 bool
1810 config SYS_SUPPORTS_1024HZ
1811 bool
1813 config SYS_SUPPORTS_ARBIT_HZ
1814 bool
1815 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1816 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1817 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1818 !SYS_SUPPORTS_1024HZ
1820 config HZ
1821 int
1822 default 48 if HZ_48
1823 default 100 if HZ_100
1824 default 128 if HZ_128
1825 default 250 if HZ_250
1826 default 256 if HZ_256
1827 default 1000 if HZ_1000
1828 default 1024 if HZ_1024
1830 source "kernel/Kconfig.preempt"
1832 config RTC_DS1742
1833 bool "DS1742 BRAM/RTC support"
1834 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1836 config MIPS_INSANE_LARGE
1837 bool "Support for large 64-bit configurations"
1838 depends on CPU_R10000 && 64BIT
1839 help
1840 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1841 previous 64-bit processors which only supported 40 bit / 1TB. If you
1842 need processes of more than 1TB virtual address space, say Y here.
1843 This will result in additional memory usage, so it is not
1844 recommended for normal users.
1846 endmenu
1848 config RWSEM_GENERIC_SPINLOCK
1849 bool
1850 default y
1852 source "init/Kconfig"
1854 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1856 config HW_HAS_EISA
1857 bool
1858 config HW_HAS_PCI
1859 bool
1861 config PCI
1862 bool "Support for PCI controller"
1863 depends on HW_HAS_PCI
1864 help
1865 Find out whether you have a PCI motherboard. PCI is the name of a
1866 bus system, i.e. the way the CPU talks to the other stuff inside
1867 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1868 say Y, otherwise N.
1870 The PCI-HOWTO, available from
1871 <http://www.tldp.org/docs.html#howto>, contains valuable
1872 information about which PCI hardware does work under Linux and which
1873 doesn't.
1875 config PCI_DOMAINS
1876 bool
1877 depends on PCI
1879 source "drivers/pci/Kconfig"
1882 # ISA support is now enabled via select. Too many systems still have the one
1883 # or other ISA chip on the board that users don't know about so don't expect
1884 # users to choose the right thing ...
1886 config ISA
1887 bool
1889 config NO_ISA
1890 bool
1892 config EISA
1893 bool "EISA support"
1894 depends on HW_HAS_EISA
1895 select ISA
1896 ---help---
1897 The Extended Industry Standard Architecture (EISA) bus was
1898 developed as an open alternative to the IBM MicroChannel bus.
1900 The EISA bus provided some of the features of the IBM MicroChannel
1901 bus while maintaining backward compatibility with cards made for
1902 the older ISA bus. The EISA bus saw limited use between 1988 and
1903 1995 when it was made obsolete by the PCI bus.
1905 Say Y here if you are building a kernel for an EISA-based machine.
1907 Otherwise, say N.
1909 source "drivers/eisa/Kconfig"
1911 config TC
1912 bool "TURBOchannel support"
1913 depends on MACH_DECSTATION
1914 help
1915 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1916 processors. Documentation on writing device drivers for TurboChannel
1917 is available at:
1918 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1920 #config ACCESSBUS
1921 # bool "Access.Bus support"
1922 # depends on TC
1924 config MMU
1925 bool
1926 default y
1928 config I8253
1929 bool
1931 source "drivers/pcmcia/Kconfig"
1933 source "drivers/pci/hotplug/Kconfig"
1935 endmenu
1937 menu "Executable file formats"
1939 source "fs/Kconfig.binfmt"
1941 config TRAD_SIGNALS
1942 bool
1944 config BUILD_ELF64
1945 bool "Use 64-bit ELF format for building"
1946 depends on 64BIT
1947 help
1948 A 64-bit kernel is usually built using the 64-bit ELF binary object
1949 format as it's one that allows arbitrary 64-bit constructs. For
1950 kernels that are loaded within the KSEG compatibility segments the
1951 32-bit ELF format can optionally be used resulting in a somewhat
1952 smaller binary, but this option is not explicitly supported by the
1953 toolchain and since binutils 2.14 it does not even work at all.
1955 Say Y to use the 64-bit format or N to use the 32-bit one.
1957 If unsure say Y.
1959 config BINFMT_IRIX
1960 bool "Include IRIX binary compatibility"
1961 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1963 config MIPS32_COMPAT
1964 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1965 depends on 64BIT
1966 help
1967 Select this option if you want Linux/MIPS 32-bit binary
1968 compatibility. Since all software available for Linux/MIPS is
1969 currently 32-bit you should say Y here.
1971 config COMPAT
1972 bool
1973 depends on MIPS32_COMPAT
1974 default y
1976 config MIPS32_O32
1977 bool "Kernel support for o32 binaries"
1978 depends on MIPS32_COMPAT
1979 help
1980 Select this option if you want to run o32 binaries. These are pure
1981 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1982 existing binaries are in this format.
1984 If unsure, say Y.
1986 config MIPS32_N32
1987 bool "Kernel support for n32 binaries"
1988 depends on MIPS32_COMPAT
1989 help
1990 Select this option if you want to run n32 binaries. These are
1991 64-bit binaries using 32-bit quantities for addressing and certain
1992 data that would normally be 64-bit. They are used in special
1993 cases.
1995 If unsure, say N.
1997 config BINFMT_ELF32
1998 bool
1999 default y if MIPS32_O32 || MIPS32_N32
2001 config SECCOMP
2002 bool "Enable seccomp to safely compute untrusted bytecode"
2003 depends on PROC_FS && BROKEN
2004 default y
2005 help
2006 This kernel feature is useful for number crunching applications
2007 that may need to compute untrusted bytecode during their
2008 execution. By using pipes or other transports made available to
2009 the process as file descriptors supporting the read/write
2010 syscalls, it's possible to isolate those applications in
2011 their own address space using seccomp. Once seccomp is
2012 enabled via /proc/<pid>/seccomp, it cannot be disabled
2013 and the task is only allowed to execute a few safe syscalls
2014 defined by each seccomp mode.
2016 If unsure, say Y. Only embedded should say N here.
2018 config PM
2019 bool "Power Management support (EXPERIMENTAL)"
2020 depends on EXPERIMENTAL && SOC_AU1X00
2022 config APM
2023 tristate "Advanced Power Management Emulation"
2024 depends on PM
2025 ---help---
2026 APM is a BIOS specification for saving power using several different
2027 techniques. This is mostly useful for battery powered systems with
2028 APM compliant BIOSes. If you say Y here, the system time will be
2029 reset after a RESUME operation, the /proc/apm device will provide
2030 battery status information, and user-space programs will receive
2031 notification of APM "events" (e.g. battery status change).
2033 In order to use APM, you will need supporting software. For location
2034 and more information, read <file:Documentation/pm.txt> and the
2035 Battery Powered Linux mini-HOWTO, available from
2036 <http://www.tldp.org/docs.html#howto>.
2038 This driver does not spin down disk drives (see the hdparm(8)
2039 manpage ("man 8 hdparm") for that), and it doesn't turn off
2040 VESA-compliant "green" monitors.
2042 Generally, if you don't have a battery in your machine, there isn't
2043 much point in using this driver and you should say N. If you get
2044 random kernel OOPSes or reboots that don't seem to be related to
2045 anything, try disabling/enabling this option (or disabling/enabling
2046 APM in your BIOS).
2048 endmenu
2050 source "net/Kconfig"
2052 source "drivers/Kconfig"
2054 source "fs/Kconfig"
2056 source "arch/mips/oprofile/Kconfig"
2058 source "arch/mips/Kconfig.debug"
2060 source "security/Kconfig"
2062 source "crypto/Kconfig"
2064 source "lib/Kconfig"