[MIPS] Sibyte: Fixes for oneshot timer mode.
[deliverable/linux.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
4 # Horrible source of confusion. Die, die, die ...
5 select EMBEDDED
90b02340 6 select RTC_LIB
1da177e4 7
875d43e7
RB
8mainmenu "Linux/MIPS Kernel Configuration"
9
1da177e4
LT
10menu "Machine selection"
11
5ac6da66
CL
12config ZONE_DMA
13 bool
5ac6da66 14
5e83d430
RB
15choice
16 prompt "System type"
17 default SGI_IP22
1da177e4 18
c3543e25
YY
19config MACH_ALCHEMY
20 bool "Alchemy processor based machines"
1da177e4 21
35189fad 22config BASLER_EXCITE
be91589e 23 bool "Basler eXcite smart camera"
42f77542 24 select CEVT_R4K
35189fad
RB
25 select DMA_COHERENT
26 select HW_HAS_PCI
27 select IRQ_CPU
28 select IRQ_CPU_RM7K
29 select IRQ_CPU_RM9K
663c3d90 30 select MIPS_RM9122
35189fad
RB
31 select SYS_HAS_CPU_RM9000
32 select SYS_SUPPORTS_32BIT_KERNEL
35189fad 33 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 34 select SYS_SUPPORTS_KGDB
35189fad
RB
35 help
36 The eXcite is a smart camera platform manufactured by
be91589e 37 Basler Vision Technologies AG.
35189fad
RB
38
39config BASLER_EXCITE_PROTOTYPE
40 bool "Support for pre-release units"
41 depends on BASLER_EXCITE
42 default n
43 help
44 Pre-series (prototype) units are different from later ones in
45 some ways. Select this option if you have one of these. Please
46 note that a kernel built with this option selected will not be
47 able to run on normal units.
48
1c0c13eb
AJ
49config BCM47XX
50 bool "BCM47XX based boards"
42f77542 51 select CEVT_R4K
1c0c13eb
AJ
52 select DMA_NONCOHERENT
53 select HW_HAS_PCI
54 select IRQ_CPU
55 select SYS_HAS_CPU_MIPS32_R1
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_LITTLE_ENDIAN
58 select SSB
59 select SSB_DRIVER_MIPS
60 select GENERIC_GPIO
25e5fb97
AJ
61 select SYS_HAS_EARLY_PRINTK
62 select CFE
1c0c13eb
AJ
63 help
64 Support for BCM47XX based boards
65
1da177e4 66config MIPS_COBALT
3fa986fa 67 bool "Cobalt Server"
42f77542 68 select CEVT_R4K
1097c6ac 69 select CEVT_GT641XX
1da177e4
LT
70 select DMA_NONCOHERENT
71 select HW_HAS_PCI
d865bea4 72 select I8253
1da177e4
LT
73 select I8259
74 select IRQ_CPU
d5ab1a69 75 select IRQ_GT641XX
252161ec 76 select PCI_GT64XXX_PCI0
7cf8053b 77 select SYS_HAS_CPU_NEVADA
0a22e0d4 78 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 81 select SYS_SUPPORTS_LITTLE_ENDIAN
9fd32cfb 82 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
83
84config MACH_DECSTATION
3fa986fa 85 bool "DECstations"
1da177e4 86 select BOOT_ELF32
42f77542 87 select CEVT_R4K
1da177e4 88 select DMA_NONCOHERENT
d388d685 89 select NO_IOPORT
1da177e4 90 select IRQ_CPU
7cf8053b
RB
91 select SYS_HAS_CPU_R3000
92 select SYS_HAS_CPU_R4X00
ed5ba2fb
YY
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 95 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
96 select SYS_SUPPORTS_128HZ
97 select SYS_SUPPORTS_256HZ
98 select SYS_SUPPORTS_1024HZ
5e83d430 99 help
1da177e4
LT
100 This enables support for DEC's MIPS based workstations. For details
101 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
102 DECstation porting pages on <http://decstation.unix-ag.org/>.
103
104 If you have one of the following DECstation Models you definitely
105 want to choose R4xx0 for the CPU Type:
106
9308816c
RB
107 DECstation 5000/50
108 DECstation 5000/150
109 DECstation 5000/260
110 DECsystem 5900/260
1da177e4
LT
111
112 otherwise choose R3000.
113
5e83d430 114config MACH_JAZZ
3fa986fa 115 bool "Jazz family of machines"
5e83d430
RB
116 select ARC
117 select ARC32
118 select ARCH_MAY_HAVE_PC_FDC
42f77542 119 select CEVT_R4K
5e83d430 120 select GENERIC_ISA_DMA
ea202c63 121 select IRQ_CPU
d865bea4 122 select I8253
5e83d430
RB
123 select I8259
124 select ISA
de61b542 125 select PCSPEAKER
7cf8053b 126 select SYS_HAS_CPU_R4X00
5e83d430
RB
127 select SYS_SUPPORTS_32BIT_KERNEL
128 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
1723b4a3 129 select SYS_SUPPORTS_100HZ
9fd32cfb 130 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4 131 help
5e83d430
RB
132 This a family of machines based on the MIPS R4030 chipset which was
133 used by several vendors to build RISC/os and Windows NT workstations.
134 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
135 Olivetti M700-10 workstations.
136
1f21d2bd
BM
137config LASAT
138 bool "LASAT Networks platforms"
42f77542 139 select CEVT_R4K
1f21d2bd
BM
140 select DMA_NONCOHERENT
141 select SYS_HAS_EARLY_PRINTK
142 select HW_HAS_PCI
a5ccfe5c 143 select IRQ_CPU
1f21d2bd
BM
144 select PCI_GT64XXX_PCI0
145 select MIPS_NILE4
146 select R5000_CPU_SCACHE
147 select SYS_HAS_CPU_R5000
148 select SYS_SUPPORTS_32BIT_KERNEL
149 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
150 select SYS_SUPPORTS_LITTLE_ENDIAN
151 select GENERIC_HARDIRQS_NO__DO_IRQ
152
ade299d8
YY
153config LEMOTE_FULONG
154 bool "Lemote Fulong mini-PC"
155 select ARCH_SPARSEMEM_ENABLE
42f77542 156 select CEVT_R4K
ade299d8
YY
157 select SYS_HAS_CPU_LOONGSON2
158 select DMA_NONCOHERENT
159 select BOOT_ELF32
160 select BOARD_SCACHE
161 select HAVE_STD_PC_SERIAL_PORT
162 select HW_HAS_PCI
163 select I8259
164 select ISA
165 select IRQ_CPU
166 select SYS_SUPPORTS_32BIT_KERNEL
167 select SYS_SUPPORTS_64BIT_KERNEL
168 select SYS_SUPPORTS_LITTLE_ENDIAN
169 select SYS_SUPPORTS_HIGHMEM
170 select SYS_HAS_EARLY_PRINTK
171 select GENERIC_HARDIRQS_NO__DO_IRQ
23dd6d35 172 select GENERIC_ISA_DMA_SUPPORT_BROKEN
ade299d8
YY
173 select CPU_HAS_WB
174 help
175 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
176 an FPGA northbridge
177
1da177e4 178config MIPS_ATLAS
3fa986fa 179 bool "MIPS Atlas board"
1da177e4 180 select BOOT_ELF32
42f77542 181 select CEVT_R4K
1da177e4 182 select DMA_NONCOHERENT
36a88530 183 select SYS_HAS_EARLY_PRINTK
5e83d430 184 select IRQ_CPU
1da177e4 185 select HW_HAS_PCI
5e83d430
RB
186 select MIPS_BOARDS_GEN
187 select MIPS_BONITO64
252161ec 188 select PCI_GT64XXX_PCI0
5e83d430 189 select MIPS_MSC
f4b7cdb4 190 select RM7000_CPU_SCACHE
1da177e4 191 select SWAP_IO_SPACE
7cf8053b
RB
192 select SYS_HAS_CPU_MIPS32_R1
193 select SYS_HAS_CPU_MIPS32_R2
194 select SYS_HAS_CPU_MIPS64_R1
195 select SYS_HAS_CPU_NEVADA
196 select SYS_HAS_CPU_RM7000
ed5ba2fb
YY
197 select SYS_SUPPORTS_32BIT_KERNEL
198 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
199 select SYS_SUPPORTS_BIG_ENDIAN
200 select SYS_SUPPORTS_LITTLE_ENDIAN
f41ae0b2 201 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
9693a853 202 select SYS_SUPPORTS_SMARTMIPS
e77c232c 203 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4 204 help
f638d197 205 This enables support for the MIPS Technologies Atlas evaluation
1da177e4
LT
206 board.
207
208config MIPS_MALTA
3fa986fa 209 bool "MIPS Malta board"
61ed242d 210 select ARCH_MAY_HAVE_PC_FDC
1da177e4 211 select BOOT_ELF32
42f77542 212 select CEVT_R4K
1da177e4
LT
213 select DMA_NONCOHERENT
214 select GENERIC_ISA_DMA
aa414dff 215 select IRQ_CPU
1da177e4 216 select HW_HAS_PCI
d865bea4 217 select I8253
1da177e4 218 select I8259
5e83d430
RB
219 select MIPS_BOARDS_GEN
220 select MIPS_BONITO64
9318c51a 221 select MIPS_CPU_SCACHE
252161ec 222 select PCI_GT64XXX_PCI0
5e83d430 223 select MIPS_MSC
1da177e4 224 select SWAP_IO_SPACE
7cf8053b
RB
225 select SYS_HAS_CPU_MIPS32_R1
226 select SYS_HAS_CPU_MIPS32_R2
227 select SYS_HAS_CPU_MIPS64_R1
228 select SYS_HAS_CPU_NEVADA
229 select SYS_HAS_CPU_RM7000
36a88530 230 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
233 select SYS_SUPPORTS_BIG_ENDIAN
234 select SYS_SUPPORTS_LITTLE_ENDIAN
f41ae0b2 235 select SYS_SUPPORTS_MULTITHREADING
9693a853 236 select SYS_SUPPORTS_SMARTMIPS
1da177e4 237 help
f638d197 238 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
239 board.
240
241config MIPS_SEAD
d98cc84d 242 bool "MIPS SEAD board"
42f77542 243 select CEVT_R4K
1da177e4
LT
244 select IRQ_CPU
245 select DMA_NONCOHERENT
36a88530 246 select SYS_HAS_EARLY_PRINTK
5e83d430 247 select MIPS_BOARDS_GEN
7cf8053b
RB
248 select SYS_HAS_CPU_MIPS32_R1
249 select SYS_HAS_CPU_MIPS32_R2
250 select SYS_HAS_CPU_MIPS64_R1
ed5ba2fb 251 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430
RB
252 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
253 select SYS_SUPPORTS_BIG_ENDIAN
254 select SYS_SUPPORTS_LITTLE_ENDIAN
9693a853 255 select SYS_SUPPORTS_SMARTMIPS
f638d197
MR
256 help
257 This enables support for the MIPS Technologies SEAD evaluation
258 board.
1da177e4 259
5e83d430 260config MIPS_SIM
3fa986fa 261 bool 'MIPS simulator (MIPSsim)'
42f77542 262 select CEVT_R4K
1da177e4 263 select DMA_NONCOHERENT
36a88530 264 select SYS_HAS_EARLY_PRINTK
1da177e4 265 select IRQ_CPU
9267a30d 266 select BOOT_RAW
7cf8053b
RB
267 select SYS_HAS_CPU_MIPS32_R1
268 select SYS_HAS_CPU_MIPS32_R2
36a88530 269 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 270 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430 271 select SYS_SUPPORTS_BIG_ENDIAN
f6e2373a 272 select SYS_SUPPORTS_MULTITHREADING
5e83d430 273 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 274 help
5e83d430
RB
275 This option enables support for MIPS Technologies MIPSsim software
276 emulator.
1da177e4 277
ade299d8
YY
278config MARKEINS
279 bool "NEC EMMA2RH Mark-eins"
42f77542 280 select CEVT_R4K
ade299d8
YY
281 select DMA_NONCOHERENT
282 select HW_HAS_PCI
283 select IRQ_CPU
284 select SWAP_IO_SPACE
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_BIG_ENDIAN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
288 select SYS_HAS_CPU_R5000
289 help
290 This enables support for the R5432-based NEC Mark-eins
291 boards with R5500 CPU.
292
5e83d430 293config MACH_VR41XX
74142d65 294 bool "NEC VR4100 series based machines"
42f77542 295 select CEVT_R4K
7cf8053b 296 select SYS_HAS_CPU_VR41XX
9fd32cfb 297 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 298
ade299d8
YY
299config PNX8550_JBS
300 bool "Philips PNX8550 based JBS board"
301 select PNX8550
302 select SYS_SUPPORTS_LITTLE_ENDIAN
303
304config PNX8550_STB810
305 bool "Philips PNX8550 based STB810 board"
306 select PNX8550
307 select SYS_SUPPORTS_LITTLE_ENDIAN
308
9267a30d
MSJ
309config PMC_MSP
310 bool "PMC-Sierra MSP chipsets"
311 depends on EXPERIMENTAL
312 select DMA_NONCOHERENT
313 select SWAP_IO_SPACE
314 select NO_EXCEPT_FILL
315 select BOOT_RAW
316 select SYS_HAS_CPU_MIPS32_R1
317 select SYS_HAS_CPU_MIPS32_R2
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_KGDB
321 select IRQ_CPU
322 select SERIAL_8250
323 select SERIAL_8250_CONSOLE
324 help
325 This adds support for the PMC-Sierra family of Multi-Service
326 Processor System-On-A-Chips. These parts include a number
327 of integrated peripherals, interfaces and DSPs in addition to
328 a variety of MIPS cores.
329
5e83d430 330config PMC_YOSEMITE
3fa986fa 331 bool "PMC-Sierra Yosemite eval board"
42f77542 332 select CEVT_R4K
5e83d430
RB
333 select DMA_COHERENT
334 select HW_HAS_PCI
335 select IRQ_CPU
336 select IRQ_CPU_RM7K
337 select IRQ_CPU_RM9K
338 select SWAP_IO_SPACE
7cf8053b 339 select SYS_HAS_CPU_RM9000
36a88530 340 select SYS_HAS_EARLY_PRINTK
5e83d430
RB
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL
343 select SYS_SUPPORTS_BIG_ENDIAN
344 select SYS_SUPPORTS_HIGHMEM
cc801077 345 select SYS_SUPPORTS_KGDB
e73ea273 346 select SYS_SUPPORTS_SMP
5e83d430
RB
347 help
348 Yosemite is an evaluation board for the RM9000x2 processor
349 manufactured by PMC-Sierra.
1da177e4 350
07119621 351config QEMU
3fa986fa 352 bool "Qemu"
42f77542 353 select CEVT_R4K
07119621
RB
354 select DMA_COHERENT
355 select GENERIC_ISA_DMA
356 select HAVE_STD_PC_SERIAL_PORT
d865bea4 357 select I8253
07119621 358 select I8259
7bcf7717 359 select IRQ_CPU
07119621 360 select ISA
de61b542 361 select PCSPEAKER
07119621 362 select SWAP_IO_SPACE
7cf8053b 363 select SYS_HAS_CPU_MIPS32_R1
07119621
RB
364 select SYS_SUPPORTS_32BIT_KERNEL
365 select SYS_SUPPORTS_BIG_ENDIAN
c8cc9618 366 select SYS_SUPPORTS_LITTLE_ENDIAN
b1c6cd42 367 select ARCH_SPARSEMEM_ENABLE
9fd32cfb 368 select GENERIC_HARDIRQS_NO__DO_IRQ
72ede9b1
AN
369 select NR_CPUS_DEFAULT_1
370 select SYS_SUPPORTS_SMP
07119621 371 help
5e83d430
RB
372 Qemu is a software emulator which among other architectures also
373 can simulate a MIPS32 4Kc system. This patch adds support for the
374 system architecture that currently is being simulated by Qemu. It
375 will eventually be removed again when Qemu has the capability to
376 simulate actual MIPS hardware platforms. More information on Qemu
377 can be found at http://www.linux-mips.org/wiki/Qemu.
07119621 378
1da177e4 379config SGI_IP22
3fa986fa 380 bool "SGI IP22 (Indy/Indigo2)"
1da177e4
LT
381 select ARC
382 select ARC32
383 select BOOT_ELF32
42f77542 384 select CEVT_R4K
1da177e4 385 select DMA_NONCOHERENT
5e83d430 386 select HW_HAS_EISA
d865bea4 387 select I8253
1da177e4
LT
388 select IP22_CPU_SCACHE
389 select IRQ_CPU
aa414dff 390 select GENERIC_ISA_DMA_SUPPORT_BROKEN
1da177e4 391 select SWAP_IO_SPACE
7cf8053b
RB
392 select SYS_HAS_CPU_R4X00
393 select SYS_HAS_CPU_R5000
36a88530 394 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
395 select SYS_SUPPORTS_32BIT_KERNEL
396 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 397 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
398 help
399 This are the SGI Indy, Challenge S and Indigo2, as well as certain
400 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
401 that runs on these, say Y here.
402
403config SGI_IP27
3fa986fa 404 bool "SGI IP27 (Origin200/2000)"
1da177e4
LT
405 select ARC
406 select ARC64
5e83d430 407 select BOOT_ELF64
1da177e4 408 select DMA_IP27
36a88530 409 select SYS_HAS_EARLY_PRINTK
1da177e4 410 select HW_HAS_PCI
130e2fb7 411 select NR_CPUS_DEFAULT_64
7cf8053b 412 select SYS_HAS_CPU_R10000
ed5ba2fb 413 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 414 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 415 select SYS_SUPPORTS_KGDB
d8cb4e11 416 select SYS_SUPPORTS_NUMA
1a5c5de1 417 select SYS_SUPPORTS_SMP
e77c232c 418 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
419 help
420 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
421 workstations. To compile a Linux kernel that runs on these, say Y
422 here.
423
1da177e4 424config SGI_IP32
cfd2afc0 425 bool "SGI IP32 (O2)"
1da177e4
LT
426 select ARC
427 select ARC32
428 select BOOT_ELF32
42f77542 429 select CEVT_R4K
1da177e4
LT
430 select DMA_NONCOHERENT
431 select HW_HAS_PCI
dd67b155 432 select IRQ_CPU
1da177e4
LT
433 select R5000_CPU_SCACHE
434 select RM7000_CPU_SCACHE
7cf8053b
RB
435 select SYS_HAS_CPU_R5000
436 select SYS_HAS_CPU_R10000 if BROKEN
437 select SYS_HAS_CPU_RM7000
dd2f18fe 438 select SYS_HAS_CPU_NEVADA
ed5ba2fb 439 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 440 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 441 help
5e83d430 442 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 443
ade299d8
YY
444config SIBYTE_CRHINE
445 bool "Sibyte BCM91120C-CRhine"
446 depends on EXPERIMENTAL
9a6dcea1
AI
447 select BOOT_ELF32
448 select DMA_COHERENT
ade299d8 449 select SIBYTE_BCM1120
9a6dcea1 450 select SWAP_IO_SPACE
7cf8053b 451 select SYS_HAS_CPU_SB1
9a6dcea1
AI
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_LITTLE_ENDIAN
454
ade299d8
YY
455config SIBYTE_CARMEL
456 bool "Sibyte BCM91120x-Carmel"
457 depends on EXPERIMENTAL
5e83d430 458 select BOOT_ELF32
1da177e4 459 select DMA_COHERENT
ade299d8 460 select SIBYTE_BCM1120
5e83d430 461 select SWAP_IO_SPACE
7cf8053b 462 select SYS_HAS_CPU_SB1
81731f79 463 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 464 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 465
ade299d8
YY
466config SIBYTE_CRHONE
467 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
468 depends on EXPERIMENTAL
469 select BOOT_ELF32
470 select DMA_COHERENT
ade299d8 471 select SIBYTE_BCM1125
5e83d430 472 select SWAP_IO_SPACE
7cf8053b 473 select SYS_HAS_CPU_SB1
5e83d430 474 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 475 select SYS_SUPPORTS_HIGHMEM
5e83d430 476 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 477
5e83d430 478config SIBYTE_RHONE
3fa986fa 479 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
480 depends on EXPERIMENTAL
481 select BOOT_ELF32
482 select DMA_COHERENT
483 select SIBYTE_BCM1125H
484 select SWAP_IO_SPACE
7cf8053b 485 select SYS_HAS_CPU_SB1
5e83d430
RB
486 select SYS_SUPPORTS_BIG_ENDIAN
487 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 488
ade299d8
YY
489config SIBYTE_SWARM
490 bool "Sibyte BCM91250A-SWARM"
5e83d430 491 select BOOT_ELF32
26a940e2 492 select DMA_COHERENT
ade299d8
YY
493 select NR_CPUS_DEFAULT_2
494 select SIBYTE_SB1250
5e83d430 495 select SWAP_IO_SPACE
7cf8053b 496 select SYS_HAS_CPU_SB1
5e83d430 497 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8
YY
498 select SYS_SUPPORTS_HIGHMEM
499 select SYS_SUPPORTS_KGDB
e3ad1c23
PP
500 select SYS_SUPPORTS_LITTLE_ENDIAN
501
ade299d8
YY
502config SIBYTE_LITTLESUR
503 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
504 depends on EXPERIMENTAL
505 select BOOT_ELF32
506 select DMA_COHERENT
130e2fb7 507 select NR_CPUS_DEFAULT_2
5e83d430
RB
508 select SIBYTE_SB1250
509 select SWAP_IO_SPACE
7cf8053b 510 select SYS_HAS_CPU_SB1
5e83d430
RB
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_HIGHMEM
513 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 514
ade299d8
YY
515config SIBYTE_SENTOSA
516 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
517 depends on EXPERIMENTAL
518 select BOOT_ELF32
519 select DMA_COHERENT
130e2fb7 520 select NR_CPUS_DEFAULT_2
5e83d430
RB
521 select SIBYTE_SB1250
522 select SWAP_IO_SPACE
7cf8053b 523 select SYS_HAS_CPU_SB1
5e83d430 524 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 525 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 526
ade299d8
YY
527config SIBYTE_PTSWARM
528 bool "Sibyte BCM91250PT-PTSWARM"
5e83d430
RB
529 depends on EXPERIMENTAL
530 select BOOT_ELF32
531 select DMA_COHERENT
ade299d8
YY
532 select NR_CPUS_DEFAULT_2
533 select SIBYTE_SB1250
5e83d430 534 select SWAP_IO_SPACE
7cf8053b 535 select SYS_HAS_CPU_SB1
5e83d430 536 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 537 select SYS_SUPPORTS_HIGHMEM
5e83d430 538 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 539
ade299d8
YY
540config SIBYTE_BIGSUR
541 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
542 select BOOT_ELF32
543 select DMA_COHERENT
ade299d8 544 select NR_CPUS_DEFAULT_4
ade299d8 545 select SIBYTE_BCM1x80
5e83d430 546 select SWAP_IO_SPACE
7cf8053b 547 select SYS_HAS_CPU_SB1
5e83d430 548 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 549 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 550
14b36af4
TB
551config SNI_RM
552 bool "SNI RM200/300/400"
4a0312fc
TB
553 select ARC if CPU_LITTLE_ENDIAN
554 select ARC32 if CPU_LITTLE_ENDIAN
61ed242d 555 select ARCH_MAY_HAVE_PC_FDC
1da177e4 556 select BOOT_ELF32
42f77542 557 select CEVT_R4K
1da177e4
LT
558 select DMA_NONCOHERENT
559 select GENERIC_ISA_DMA
5e83d430 560 select HW_HAS_EISA
1da177e4 561 select HW_HAS_PCI
c066a32a 562 select IRQ_CPU
d865bea4 563 select I8253
1da177e4
LT
564 select I8259
565 select ISA
de61b542 566 select PCSPEAKER
4a0312fc 567 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 568 select SYS_HAS_CPU_R4X00
4a0312fc 569 select SYS_HAS_CPU_R5000
c066a32a 570 select SYS_HAS_CPU_R10000
4a0312fc 571 select R5000_CPU_SCACHE
36a88530 572 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
573 select SYS_SUPPORTS_32BIT_KERNEL
574 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
4a0312fc 575 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 576 select SYS_SUPPORTS_HIGHMEM
5e83d430 577 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 578 help
14b36af4
TB
579 The SNI RM200/300/400 are MIPS-based machines manufactured by
580 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
581 Technology and now in turn merged with Fujitsu. Say Y here to
582 support this machine type.
583
5e83d430 584config TOSHIBA_JMR3927
3fa986fa 585 bool "Toshiba JMR-TX3927 board"
229f773e 586 select CEVT_TXX9
5e83d430
RB
587 select DMA_NONCOHERENT
588 select HW_HAS_PCI
589 select MIPS_TX3927
c87abd75 590 select IRQ_TXX9
5e83d430 591 select SWAP_IO_SPACE
7cf8053b 592 select SYS_HAS_CPU_TX39XX
5e83d430 593 select SYS_SUPPORTS_32BIT_KERNEL
6a2603a2 594 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 595 select SYS_SUPPORTS_BIG_ENDIAN
2127435e 596 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 597
1da177e4 598config TOSHIBA_RBTX4927
08a91283 599 bool "Toshiba RBTX49[23]7 board"
42f77542 600 select CEVT_R4K
229f773e 601 select CEVT_TXX9
1da177e4
LT
602 select DMA_NONCOHERENT
603 select HAS_TXX9_SERIAL
604 select HW_HAS_PCI
c87abd75
AN
605 select IRQ_CPU
606 select IRQ_TXX9
607 select I8259 if TOSHIBA_FPCIB0
1da177e4 608 select SWAP_IO_SPACE
7cf8053b 609 select SYS_HAS_CPU_TX49XX
ed5ba2fb
YY
610 select SYS_SUPPORTS_32BIT_KERNEL
611 select SYS_SUPPORTS_64BIT_KERNEL
6a2603a2 612 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 613 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 614 select SYS_SUPPORTS_KGDB
9fd32cfb 615 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
616 help
617 This Toshiba board is based on the TX4927 processor. Say Y here to
618 support this machine type
619
5e83d430 620config TOSHIBA_RBTX4938
3fa986fa 621 bool "Toshiba RBTX4938 board"
42f77542 622 select CEVT_R4K
229f773e 623 select CEVT_TXX9
5e83d430 624 select DMA_NONCOHERENT
5e83d430
RB
625 select HAS_TXX9_SERIAL
626 select HW_HAS_PCI
c87abd75
AN
627 select IRQ_CPU
628 select IRQ_TXX9
5e83d430 629 select SWAP_IO_SPACE
7cf8053b 630 select SYS_HAS_CPU_TX49XX
5e83d430
RB
631 select SYS_SUPPORTS_32BIT_KERNEL
632 select SYS_SUPPORTS_LITTLE_ENDIAN
633 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 634 select SYS_SUPPORTS_KGDB
9fd32cfb 635 select GENERIC_HARDIRQS_NO__DO_IRQ
3896b054 636 select GENERIC_GPIO
5e83d430
RB
637 help
638 This Toshiba board is based on the TX4938 processor. Say Y here to
639 support this machine type
640
ade299d8
YY
641config WR_PPMC
642 bool "Wind River PPMC board"
42f77542 643 select CEVT_R4K
ade299d8
YY
644 select IRQ_CPU
645 select BOOT_ELF32
646 select DMA_NONCOHERENT
647 select HW_HAS_PCI
648 select PCI_GT64XXX_PCI0
649 select SWAP_IO_SPACE
650 select SYS_HAS_CPU_MIPS32_R1
651 select SYS_HAS_CPU_MIPS32_R2
652 select SYS_HAS_CPU_MIPS64_R1
653 select SYS_HAS_CPU_NEVADA
654 select SYS_HAS_CPU_RM7000
655 select SYS_SUPPORTS_32BIT_KERNEL
656 select SYS_SUPPORTS_64BIT_KERNEL
657 select SYS_SUPPORTS_BIG_ENDIAN
658 select SYS_SUPPORTS_LITTLE_ENDIAN
659 help
660 This enables support for the Wind River MIPS32 4KC PPMC evaluation
661 board, which is based on GT64120 bridge chip.
662
5e83d430 663endchoice
1da177e4 664
c3543e25 665source "arch/mips/au1000/Kconfig"
5e83d430 666source "arch/mips/jazz/Kconfig"
1f21d2bd 667source "arch/mips/lasat/Kconfig"
5e83d430 668source "arch/mips/pmc-sierra/Kconfig"
29c48699 669source "arch/mips/sgi-ip27/Kconfig"
38b18f72 670source "arch/mips/sibyte/Kconfig"
5e83d430 671source "arch/mips/tx4927/Kconfig"
23fbee9d 672source "arch/mips/tx4938/Kconfig"
5e83d430 673source "arch/mips/vr41xx/Kconfig"
38b18f72 674
5e83d430
RB
675endmenu
676
1da177e4
LT
677config RWSEM_GENERIC_SPINLOCK
678 bool
679 default y
680
681config RWSEM_XCHGADD_ALGORITHM
682 bool
683
f0d1b0b3
DH
684config ARCH_HAS_ILOG2_U32
685 bool
686 default n
687
688config ARCH_HAS_ILOG2_U64
689 bool
690 default n
691
3c9ee7ef
AM
692config GENERIC_FIND_NEXT_BIT
693 bool
694 default y
695
696config GENERIC_HWEIGHT
697 bool
698 default y
699
1da177e4
LT
700config GENERIC_CALIBRATE_DELAY
701 bool
702 default y
703
7bcf7717
RB
704config GENERIC_CLOCKEVENTS
705 bool
706 default y
707
8db02010
RB
708config GENERIC_TIME
709 bool
710 default y
711
f5ff0a28
RB
712config GENERIC_CMOS_UPDATE
713 bool
714 default y
715
1cc89038
AN
716config SCHED_NO_NO_OMIT_FRAME_POINTER
717 bool
718 default y
719
e77c232c
FBH
720config GENERIC_HARDIRQS_NO__DO_IRQ
721 bool
722 default n
723
1da177e4
LT
724#
725# Select some configuration options automatically based on user selections.
726#
727config ARC
728 bool
1da177e4 729
61ed242d
RB
730config ARCH_MAY_HAVE_PC_FDC
731 bool
732
9267a30d
MSJ
733config BOOT_RAW
734 bool
735
1097c6ac
YY
736config CEVT_GT641XX
737 bool
738
42f77542
RB
739config CEVT_R4K
740 bool
741
229f773e
AN
742config CEVT_TXX9
743 bool
744
df78b5c8
AJ
745config CFE
746 bool
747
4ce588cd 748config DMA_COHERENT
1da177e4
LT
749 bool
750
4ce588cd 751config DMA_IP27
1da177e4
LT
752 bool
753
4ce588cd
RB
754config DMA_IP32
755 bool
756 select DMA_NEED_PCI_MAP_STATE
757
758config DMA_NONCOHERENT
759 bool
760 select DMA_NEED_PCI_MAP_STATE
761
762config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
763 bool
764
765config EARLY_PRINTK
36a88530
RB
766 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
767 depends on SYS_HAS_EARLY_PRINTK
768 default y
769 help
770 This option enables special console drivers which allow the kernel
771 to print messages very early in the bootup process.
772
773 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
774 early before the console code is initialized. For normal operation,
775 it is not recommended because it looks ugly on some machines and
776 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
777 unless you want to debug such a crash.
778
779config SYS_HAS_EARLY_PRINTK
1da177e4 780 bool
1da177e4 781
dbb74540
RB
782config HOTPLUG_CPU
783 bool
784 default n
785
1da177e4
LT
786config I8259
787 bool
1da177e4 788
1da177e4
LT
789config MIPS_BONITO64
790 bool
1da177e4
LT
791
792config MIPS_MSC
793 bool
1da177e4 794
1f21d2bd
BM
795config MIPS_NILE4
796 bool
797
1da177e4
LT
798config MIPS_DISABLE_OBSOLETE_IDE
799 bool
800
d388d685
MR
801config NO_IOPORT
802 def_bool n
803
8313da30
RB
804config GENERIC_ISA_DMA
805 bool
806 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
807
aa414dff
RB
808config GENERIC_ISA_DMA_SUPPORT_BROKEN
809 bool
8313da30 810 select GENERIC_ISA_DMA
aa414dff 811
09663335
YY
812config GENERIC_GPIO
813 bool
814
5e83d430 815#
3cb2fccc 816# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
817# answer,so we try hard to limit the available choices. Also the use of a
818# choice statement should be more obvious to the user.
819#
820choice
821 prompt "Endianess selection"
1da177e4
LT
822 help
823 Some MIPS machines can be configured for either little or big endian
5e83d430 824 byte order. These modes require different kernels and a different
3cb2fccc 825 Linux distribution. In general there is one preferred byteorder for a
5e83d430 826 particular system but some systems are just as commonly used in the
3dde6ad8 827 one or the other endianness.
5e83d430
RB
828
829config CPU_BIG_ENDIAN
830 bool "Big endian"
831 depends on SYS_SUPPORTS_BIG_ENDIAN
832
833config CPU_LITTLE_ENDIAN
834 bool "Little endian"
835 depends on SYS_SUPPORTS_LITTLE_ENDIAN
836 help
837
838endchoice
839
2116245e
RB
840config SYS_SUPPORTS_APM_EMULATION
841 bool
842
5e83d430
RB
843config SYS_SUPPORTS_BIG_ENDIAN
844 bool
845
846config SYS_SUPPORTS_LITTLE_ENDIAN
847 bool
1da177e4
LT
848
849config IRQ_CPU
850 bool
851
852config IRQ_CPU_RM7K
853 bool
854
5e83d430
RB
855config IRQ_CPU_RM9K
856 bool
857
9267a30d
MSJ
858config IRQ_MSP_SLP
859 bool
860
861config IRQ_MSP_CIC
862 bool
863
8420fd00
AN
864config IRQ_TXX9
865 bool
866
d5ab1a69
YY
867config IRQ_GT641XX
868 bool
869
1da177e4
LT
870config MIPS_BOARDS_GEN
871 bool
1da177e4 872
252161ec 873config PCI_GT64XXX_PCI0
1da177e4 874 bool
1da177e4 875
9267a30d
MSJ
876config NO_EXCEPT_FILL
877 bool
878
1da177e4
LT
879config MIPS_TX3927
880 bool
1da177e4 881 select HAS_TXX9_SERIAL
1da177e4 882
663c3d90 883config MIPS_RM9122
884 bool
885 select SERIAL_RM9000
663c3d90 886
bdf21b18
PP
887config PNX8550
888 bool
889 select SOC_PNX8550
890
891config SOC_PNX8550
892 bool
bdf21b18
PP
893 select DMA_NONCOHERENT
894 select HW_HAS_PCI
b8c2a77c 895 select SYS_HAS_CPU_MIPS32_R1
36a88530 896 select SYS_HAS_EARLY_PRINTK
7cf8053b 897 select SYS_SUPPORTS_32BIT_KERNEL
e77c232c 898 select GENERIC_HARDIRQS_NO__DO_IRQ
cc801077 899 select SYS_SUPPORTS_KGDB
4ead1681 900 select GENERIC_GPIO
bdf21b18 901
1da177e4
LT
902config SWAP_IO_SPACE
903 bool
904
355c471f 905config EMMA2RH
906 bool
907 depends on MARKEINS
908 default y
909
663c3d90 910config SERIAL_RM9000
911 bool
912
5e83d430
RB
913config ARC32
914 bool
915
1da177e4
LT
916config BOOT_ELF32
917 bool
1da177e4
LT
918
919config MIPS_L1_CACHE_SHIFT
920 int
06cf5583
TB
921 default "4" if MACH_DECSTATION
922 default "7" if SGI_IP27 || SNI_RM
9267a30d 923 default "4" if PMC_MSP4200_EVAL
1da177e4
LT
924 default "5"
925
1da177e4
LT
926config HAVE_STD_PC_SERIAL_PORT
927 bool
928
1da177e4
LT
929config ARC_CONSOLE
930 bool "ARC console support"
36a88530 931 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
932
933config ARC_MEMORY
934 bool
14b36af4 935 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
936 default y
937
938config ARC_PROMLIB
939 bool
14b36af4 940 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1da177e4
LT
941 default y
942
943config ARC64
944 bool
1da177e4
LT
945
946config BOOT_ELF64
947 bool
1da177e4 948
1da177e4
LT
949menu "CPU selection"
950
7bcf7717
RB
951source "kernel/time/Kconfig"
952
1da177e4
LT
953choice
954 prompt "CPU type"
955 default CPU_R4X00
956
2a21c730
FZ
957config CPU_LOONGSON2
958 bool "Loongson 2"
959 depends on SYS_HAS_CPU_LOONGSON2
960 select CPU_SUPPORTS_32BIT_KERNEL
961 select CPU_SUPPORTS_64BIT_KERNEL
962 select CPU_SUPPORTS_HIGHMEM
963 help
964 The Loongson 2E processor implements the MIPS III instruction set
965 with many extensions.
966
6e760c8d
RB
967config CPU_MIPS32_R1
968 bool "MIPS32 Release 1"
7cf8053b 969 depends on SYS_HAS_CPU_MIPS32_R1
f7062ddb 970 select CPU_HAS_LLSC
6e760c8d 971 select CPU_HAS_PREFETCH
797798c1 972 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 973 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 974 help
5e83d430 975 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
976 MIPS32 architecture. Most modern embedded systems with a 32-bit
977 MIPS processor are based on a MIPS32 processor. If you know the
978 specific type of processor in your system, choose those that one
979 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
980 Release 2 of the MIPS32 architecture is available since several
981 years so chances are you even have a MIPS32 Release 2 processor
982 in which case you should choose CPU_MIPS32_R2 instead for better
983 performance.
984
985config CPU_MIPS32_R2
986 bool "MIPS32 Release 2"
7cf8053b 987 depends on SYS_HAS_CPU_MIPS32_R2
f7062ddb 988 select CPU_HAS_LLSC
1e5f1caa 989 select CPU_HAS_PREFETCH
797798c1 990 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 991 select CPU_SUPPORTS_HIGHMEM
6e760c8d 992 help
5e83d430 993 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
994 MIPS32 architecture. Most modern embedded systems with a 32-bit
995 MIPS processor are based on a MIPS32 processor. If you know the
996 specific type of processor in your system, choose those that one
997 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
998
999config CPU_MIPS64_R1
1000 bool "MIPS64 Release 1"
7cf8053b 1001 depends on SYS_HAS_CPU_MIPS64_R1
f7062ddb 1002 select CPU_HAS_LLSC
797798c1 1003 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1004 select CPU_SUPPORTS_32BIT_KERNEL
1005 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1006 select CPU_SUPPORTS_HIGHMEM
6e760c8d
RB
1007 help
1008 Choose this option to build a kernel for release 1 or later of the
1009 MIPS64 architecture. Many modern embedded systems with a 64-bit
1010 MIPS processor are based on a MIPS64 processor. If you know the
1011 specific type of processor in your system, choose those that one
1012 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1013 Release 2 of the MIPS64 architecture is available since several
1014 years so chances are you even have a MIPS64 Release 2 processor
1015 in which case you should choose CPU_MIPS64_R2 instead for better
1016 performance.
1017
1018config CPU_MIPS64_R2
1019 bool "MIPS64 Release 2"
7cf8053b 1020 depends on SYS_HAS_CPU_MIPS64_R2
f7062ddb 1021 select CPU_HAS_LLSC
797798c1 1022 select CPU_HAS_PREFETCH
1e5f1caa
RB
1023 select CPU_SUPPORTS_32BIT_KERNEL
1024 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1025 select CPU_SUPPORTS_HIGHMEM
1e5f1caa
RB
1026 help
1027 Choose this option to build a kernel for release 2 or later of the
1028 MIPS64 architecture. Many modern embedded systems with a 64-bit
1029 MIPS processor are based on a MIPS64 processor. If you know the
1030 specific type of processor in your system, choose those that one
1031 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1032
1033config CPU_R3000
1034 bool "R3000"
7cf8053b 1035 depends on SYS_HAS_CPU_R3000
f7062ddb 1036 select CPU_HAS_WB
ed5ba2fb 1037 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1038 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1039 help
1040 Please make sure to pick the right CPU type. Linux/MIPS is not
1041 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1042 *not* work on R4000 machines and vice versa. However, since most
1043 of the supported machines have an R4000 (or similar) CPU, R4x00
1044 might be a safe bet. If the resulting kernel does not work,
1045 try to recompile with R3000.
1046
1047config CPU_TX39XX
1048 bool "R39XX"
7cf8053b 1049 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1050 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1051
1052config CPU_VR41XX
1053 bool "R41xx"
7cf8053b 1054 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1055 select CPU_SUPPORTS_32BIT_KERNEL
1056 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1057 help
5e83d430 1058 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1059 Only choose this option if you have one of these processors as a
1060 kernel built with this option will not run on any other type of
1061 processor or vice versa.
1062
1063config CPU_R4300
1064 bool "R4300"
7cf8053b 1065 depends on SYS_HAS_CPU_R4300
f7062ddb 1066 select CPU_HAS_LLSC
ed5ba2fb
YY
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1069 help
1070 MIPS Technologies R4300-series processors.
1071
1072config CPU_R4X00
1073 bool "R4x00"
7cf8053b 1074 depends on SYS_HAS_CPU_R4X00
f7062ddb 1075 select CPU_HAS_LLSC
ed5ba2fb
YY
1076 select CPU_SUPPORTS_32BIT_KERNEL
1077 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1078 help
1079 MIPS Technologies R4000-series processors other than 4300, including
1080 the R4000, R4400, R4600, and 4700.
1081
1082config CPU_TX49XX
1083 bool "R49XX"
7cf8053b 1084 depends on SYS_HAS_CPU_TX49XX
f7062ddb 1085 select CPU_HAS_LLSC
de862b48 1086 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1087 select CPU_SUPPORTS_32BIT_KERNEL
1088 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1089
1090config CPU_R5000
1091 bool "R5000"
7cf8053b 1092 depends on SYS_HAS_CPU_R5000
f7062ddb 1093 select CPU_HAS_LLSC
ed5ba2fb
YY
1094 select CPU_SUPPORTS_32BIT_KERNEL
1095 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1096 help
1097 MIPS Technologies R5000-series processors other than the Nevada.
1098
1099config CPU_R5432
1100 bool "R5432"
7cf8053b 1101 depends on SYS_HAS_CPU_R5432
f7062ddb 1102 select CPU_HAS_LLSC
5e83d430
RB
1103 select CPU_SUPPORTS_32BIT_KERNEL
1104 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1105
1106config CPU_R6000
1107 bool "R6000"
ed5ba2fb 1108 depends on EXPERIMENTAL
f7062ddb 1109 select CPU_HAS_LLSC
7cf8053b 1110 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1111 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1112 help
1113 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1114 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1115
1116config CPU_NEVADA
1117 bool "RM52xx"
7cf8053b 1118 depends on SYS_HAS_CPU_NEVADA
f7062ddb 1119 select CPU_HAS_LLSC
ed5ba2fb
YY
1120 select CPU_SUPPORTS_32BIT_KERNEL
1121 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1122 help
1123 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1124
1125config CPU_R8000
1126 bool "R8000"
ed5ba2fb 1127 depends on EXPERIMENTAL
7cf8053b 1128 depends on SYS_HAS_CPU_R8000
f7062ddb 1129 select CPU_HAS_LLSC
5e83d430 1130 select CPU_HAS_PREFETCH
ed5ba2fb 1131 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1132 help
1133 MIPS Technologies R8000 processors. Note these processors are
1134 uncommon and the support for them is incomplete.
1135
1136config CPU_R10000
1137 bool "R10000"
7cf8053b 1138 depends on SYS_HAS_CPU_R10000
f7062ddb 1139 select CPU_HAS_LLSC
5e83d430 1140 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1141 select CPU_SUPPORTS_32BIT_KERNEL
1142 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1143 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1144 help
1145 MIPS Technologies R10000-series processors.
1146
1147config CPU_RM7000
1148 bool "RM7000"
7cf8053b 1149 depends on SYS_HAS_CPU_RM7000
f7062ddb 1150 select CPU_HAS_LLSC
5e83d430 1151 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1152 select CPU_SUPPORTS_32BIT_KERNEL
1153 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1154 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1155
1156config CPU_RM9000
1157 bool "RM9000"
7cf8053b 1158 depends on SYS_HAS_CPU_RM9000
f7062ddb 1159 select CPU_HAS_LLSC
5e83d430 1160 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1161 select CPU_SUPPORTS_32BIT_KERNEL
1162 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1163 select CPU_SUPPORTS_HIGHMEM
0004a9df 1164 select WEAK_ORDERING
1da177e4
LT
1165
1166config CPU_SB1
1167 bool "SB1"
7cf8053b 1168 depends on SYS_HAS_CPU_SB1
f7062ddb 1169 select CPU_HAS_LLSC
ed5ba2fb
YY
1170 select CPU_SUPPORTS_32BIT_KERNEL
1171 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1172 select CPU_SUPPORTS_HIGHMEM
0004a9df 1173 select WEAK_ORDERING
1da177e4
LT
1174
1175endchoice
1176
2a21c730
FZ
1177config SYS_HAS_CPU_LOONGSON2
1178 bool
1179
7cf8053b
RB
1180config SYS_HAS_CPU_MIPS32_R1
1181 bool
1182
1183config SYS_HAS_CPU_MIPS32_R2
1184 bool
1185
1186config SYS_HAS_CPU_MIPS64_R1
1187 bool
1188
1189config SYS_HAS_CPU_MIPS64_R2
1190 bool
1191
1192config SYS_HAS_CPU_R3000
1193 bool
1194
1195config SYS_HAS_CPU_TX39XX
1196 bool
1197
1198config SYS_HAS_CPU_VR41XX
1199 bool
1200
1201config SYS_HAS_CPU_R4300
1202 bool
1203
1204config SYS_HAS_CPU_R4X00
1205 bool
1206
1207config SYS_HAS_CPU_TX49XX
1208 bool
1209
1210config SYS_HAS_CPU_R5000
1211 bool
1212
1213config SYS_HAS_CPU_R5432
1214 bool
1215
1216config SYS_HAS_CPU_R6000
1217 bool
1218
1219config SYS_HAS_CPU_NEVADA
1220 bool
1221
1222config SYS_HAS_CPU_R8000
1223 bool
1224
1225config SYS_HAS_CPU_R10000
1226 bool
1227
1228config SYS_HAS_CPU_RM7000
1229 bool
1230
1231config SYS_HAS_CPU_RM9000
1232 bool
1233
1234config SYS_HAS_CPU_SB1
1235 bool
1236
17099b11
RB
1237#
1238# CPU may reorder R->R, R->W, W->R, W->W
1239# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1240#
0004a9df
RB
1241config WEAK_ORDERING
1242 bool
17099b11
RB
1243
1244#
1245# CPU may reorder reads and writes beyond LL/SC
1246# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1247#
1248config WEAK_REORDERING_BEYOND_LLSC
1249 bool
5e83d430
RB
1250endmenu
1251
1252#
c09b47d8 1253# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1254#
1255config CPU_MIPS32
1256 bool
1257 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1258
1259config CPU_MIPS64
1260 bool
1261 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1262
1263#
c09b47d8 1264# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1265#
1266config CPU_MIPSR1
1267 bool
1268 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1269
1270config CPU_MIPSR2
1271 bool
1272 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1273
1274config SYS_SUPPORTS_32BIT_KERNEL
1275 bool
1276config SYS_SUPPORTS_64BIT_KERNEL
1277 bool
1278config CPU_SUPPORTS_32BIT_KERNEL
1279 bool
1280config CPU_SUPPORTS_64BIT_KERNEL
1281 bool
1282
1283menu "Kernel type"
1284
1285choice
1286
1287 prompt "Kernel code model"
1288 help
1289 You should only select this option if you have a workload that
1290 actually benefits from 64-bit processing or if your machine has
1291 large memory. You will only be presented a single option in this
1292 menu if your system does not support both 32-bit and 64-bit kernels.
1293
1294config 32BIT
1295 bool "32-bit kernel"
1296 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1297 select TRAD_SIGNALS
1298 help
1299 Select this option if you want to build a 32-bit kernel.
1300config 64BIT
1301 bool "64-bit kernel"
1302 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1303 help
1304 Select this option if you want to build a 64-bit kernel.
1305
1306endchoice
1307
1da177e4
LT
1308choice
1309 prompt "Kernel page size"
1310 default PAGE_SIZE_4KB
1311
1312config PAGE_SIZE_4KB
1313 bool "4kB"
1314 help
1315 This option select the standard 4kB Linux page size. On some
1316 R3000-family processors this is the only available page size. Using
1317 4kB page size will minimize memory consumption and is therefore
1318 recommended for low memory systems.
1319
1320config PAGE_SIZE_8KB
1321 bool "8kB"
1322 depends on EXPERIMENTAL && CPU_R8000
1323 help
1324 Using 8kB page size will result in higher performance kernel at
1325 the price of higher memory consumption. This option is available
1326 only on the R8000 processor. Not that at the time of this writing
1327 this option is still high experimental; there are also issues with
1328 compatibility of user applications.
1329
1330config PAGE_SIZE_16KB
1331 bool "16kB"
714bfad6 1332 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1333 help
1334 Using 16kB page size will result in higher performance kernel at
1335 the price of higher memory consumption. This option is available on
714bfad6
RB
1336 all non-R3000 family processors. Note that you will need a suitable
1337 Linux distribution to support this.
1da177e4
LT
1338
1339config PAGE_SIZE_64KB
1340 bool "64kB"
1341 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1342 help
1343 Using 64kB page size will result in higher performance kernel at
1344 the price of higher memory consumption. This option is available on
1345 all non-R3000 family processor. Not that at the time of this
714bfad6 1346 writing this option is still high experimental.
1da177e4
LT
1347
1348endchoice
1349
1350config BOARD_SCACHE
1351 bool
1352
1353config IP22_CPU_SCACHE
1354 bool
1355 select BOARD_SCACHE
1356
9318c51a
CD
1357#
1358# Support for a MIPS32 / MIPS64 style S-caches
1359#
1360config MIPS_CPU_SCACHE
1361 bool
1362 select BOARD_SCACHE
1363
1da177e4
LT
1364config R5000_CPU_SCACHE
1365 bool
1366 select BOARD_SCACHE
1367
1368config RM7000_CPU_SCACHE
1369 bool
1370 select BOARD_SCACHE
1371
1372config SIBYTE_DMA_PAGEOPS
1373 bool "Use DMA to clear/copy pages"
1374 depends on CPU_SB1
1375 help
1376 Instead of using the CPU to zero and copy pages, use a Data Mover
1377 channel. These DMA channels are otherwise unused by the standard
1378 SiByte Linux port. Seems to give a small performance benefit.
1379
1380config CPU_HAS_PREFETCH
c8094b53 1381 bool
1da177e4 1382
340ee4b9
RB
1383choice
1384 prompt "MIPS MT options"
f41ae0b2
RB
1385
1386config MIPS_MT_DISABLED
1387 bool "Disable multithreading support."
1388 help
1389 Use this option if your workload can't take advantage of
1390 MIPS hardware multithreading support. On systems that don't have
1391 the option of an MT-enabled processor this option will be the only
1392 option in this menu.
340ee4b9 1393
59d6ab86
RB
1394config MIPS_MT_SMP
1395 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1396 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1397 select CPU_MIPSR2_IRQ_VI
d725cf38 1398 select CPU_MIPSR2_IRQ_EI
f7062ddb 1399 select CPU_MIPSR2_SRS
f41ae0b2 1400 select MIPS_MT
f510aa3b 1401 select NR_CPUS_DEFAULT_2
41c594ab 1402 select SMP
73b76c78 1403 select SYS_SUPPORTS_SMP
f41ae0b2 1404 help
59d6ab86
RB
1405 This is a kernel model which is also known a VSMP or lately
1406 has been marketesed into SMVP.
41c594ab 1407
59d6ab86
RB
1408config MIPS_MT_SMTC
1409 bool "SMTC: Use all TCs on all VPEs for SMP"
1410 depends on CPU_MIPS32_R2
1411 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2 1412 depends on SYS_SUPPORTS_MULTITHREADING
ea580401 1413 select GENERIC_CLOCKEVENTS_BROADCAST
f41ae0b2 1414 select CPU_MIPSR2_IRQ_VI
d725cf38 1415 select CPU_MIPSR2_IRQ_EI
f41ae0b2
RB
1416 select CPU_MIPSR2_SRS
1417 select MIPS_MT
130e2fb7 1418 select NR_CPUS_DEFAULT_8
340ee4b9 1419 select SMP
73b76c78 1420 select SYS_SUPPORTS_SMP
f41ae0b2 1421 help
59d6ab86
RB
1422 This is a kernel model which is known a SMTC or lately has been
1423 marketesed into SMVP.
340ee4b9 1424
340ee4b9
RB
1425endchoice
1426
f41ae0b2
RB
1427config MIPS_MT
1428 bool
1429
1430config SYS_SUPPORTS_MULTITHREADING
1431 bool
1432
f088fc84
RB
1433config MIPS_MT_FPAFF
1434 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1435 default y
07cc0c9e
RB
1436 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1437
1438config MIPS_VPE_LOADER
1439 bool "VPE loader support."
1440 depends on SYS_SUPPORTS_MULTITHREADING
1441 select CPU_MIPSR2_IRQ_VI
1442 select CPU_MIPSR2_IRQ_EI
1443 select CPU_MIPSR2_SRS
1444 select MIPS_MT
1445 help
1446 Includes a loader for loading an elf relocatable object
1447 onto another VPE and running it.
f088fc84 1448
ac8be955
RB
1449config MIPS_MT_SMTC_INSTANT_REPLAY
1450 bool "Low-latency Dispatch of Deferred SMTC IPIs"
619af723 1451 depends on MIPS_MT_SMTC && !PREEMPT
ac8be955
RB
1452 default y
1453 help
1454 SMTC pseudo-interrupts between TCs are deferred and queued
1455 if the target TC is interrupt-inhibited (IXMT). In the first
1456 SMTC prototypes, these queued IPIs were serviced on return
1457 to user mode, or on entry into the kernel idle loop. The
1458 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1459 processing, which adds runtime overhead (hence the option to turn
1460 it off), but ensures that IPIs are handled promptly even under
1461 heavy I/O interrupt load.
1462
0db34215
KK
1463config MIPS_MT_SMTC_IM_BACKSTOP
1464 bool "Use per-TC register bits as backstop for inhibited IM bits"
1465 depends on MIPS_MT_SMTC
1466 default y
1467 help
1468 To support multiple TC microthreads acting as "CPUs" within
1469 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1470 during interrupt handling. To support legacy drivers and interrupt
1471 controller management code, SMTC has a "backstop" to track and
1472 if necessary restore the interrupt mask. This has some performance
1473 impact on interrupt service overhead. Disable it only if you know
1474 what you are doing.
1475
f571eff0
KK
1476config MIPS_MT_SMTC_IRQAFF
1477 bool "Support IRQ affinity API"
1478 depends on MIPS_MT_SMTC
1479 default n
1480 help
1481 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1482 for SMTC Linux kernel. Requires platform support, of which
1483 an example can be found in the MIPS kernel i8259 and Malta
1484 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1485 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1486 interrupt dispatch, and should be used only if you know what
1487 you are doing.
1488
e01402b1
RB
1489config MIPS_VPE_LOADER_TOM
1490 bool "Load VPE program into memory hidden from linux"
1491 depends on MIPS_VPE_LOADER
1492 default y
1493 help
1494 The loader can use memory that is present but has been hidden from
1495 Linux using the kernel command line option "mem=xxMB". It's up to
1496 you to ensure the amount you put in the option and the space your
1497 program requires is less or equal to the amount physically present.
1498
1499# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1500config MIPS_VPE_APSP_API
5e83d430
RB
1501 bool "Enable support for AP/SP API (RTLX)"
1502 depends on MIPS_VPE_LOADER
1503 help
e01402b1 1504
2600990e
RB
1505config MIPS_APSP_KSPD
1506 bool "Enable KSPD"
1507 depends on MIPS_VPE_APSP_API
1508 default y
1509 help
1510 KSPD is a kernel daemon that accepts syscall requests from the SP
1511 side, actions them and returns the results. It also handles the
1512 "exit" syscall notifying other kernel modules the SP program is
1513 exiting. You probably want to say yes here.
1514
1da177e4
LT
1515config SB1_PASS_1_WORKAROUNDS
1516 bool
1517 depends on CPU_SB1_PASS_1
1518 default y
1519
1520config SB1_PASS_2_WORKAROUNDS
1521 bool
1522 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1523 default y
1524
1525config SB1_PASS_2_1_WORKAROUNDS
1526 bool
1527 depends on CPU_SB1 && CPU_SB1_PASS_2
1528 default y
1529
1530config 64BIT_PHYS_ADDR
d806cb2b 1531 bool
1da177e4 1532
1da177e4 1533config CPU_HAS_LLSC
f7062ddb 1534 bool
1da177e4 1535
9693a853
FBH
1536config CPU_HAS_SMARTMIPS
1537 depends on SYS_SUPPORTS_SMARTMIPS
1538 bool "Support for the SmartMIPS ASE"
1539 help
1540 SmartMIPS is a extension of the MIPS32 architecture aimed at
1541 increased security at both hardware and software level for
1542 smartcards. Enabling this option will allow proper use of the
1543 SmartMIPS instructions by Linux applications. However a kernel with
1544 this option will not work on a MIPS core without SmartMIPS core. If
1545 you don't know you probably don't have SmartMIPS and should say N
1546 here.
1547
1da177e4 1548config CPU_HAS_WB
f7062ddb 1549 bool
e01402b1 1550
2a21c730
FZ
1551config 64BIT_CONTEXT
1552 bool "Save 64bit integer registers"
1553 depends on 32BIT && CPU_LOONGSON2
1554 help
1555 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1556 registers can still be accessed as 64bit, mainly for multimedia
1557 instructions. We must have all 64bit save/restored to make sure
1558 those instructions to get correct result.
1559
f41ae0b2
RB
1560#
1561# Vectored interrupt mode is an R2 feature
1562#
e01402b1 1563config CPU_MIPSR2_IRQ_VI
f41ae0b2 1564 bool
e01402b1 1565
f41ae0b2
RB
1566#
1567# Extended interrupt mode is an R2 feature
1568#
e01402b1 1569config CPU_MIPSR2_IRQ_EI
f41ae0b2 1570 bool
e01402b1 1571
f41ae0b2
RB
1572#
1573# Shadow registers are an R2 feature
1574#
e01402b1 1575config CPU_MIPSR2_SRS
f41ae0b2 1576 bool
e01402b1 1577
1da177e4
LT
1578config CPU_HAS_SYNC
1579 bool
1580 depends on !CPU_R3000
1581 default y
1582
ea580401
RB
1583config GENERIC_CLOCKEVENTS_BROADCAST
1584 bool
1585
797798c1
RB
1586#
1587# Use the generic interrupt handling code in kernel/irq/:
1588#
1589config GENERIC_HARDIRQS
1590 bool
1591 default y
1592
1593config GENERIC_IRQ_PROBE
1594 bool
1595 default y
1596
0d7012a9 1597config IRQ_PER_CPU
0d7012a9 1598 bool
0d7012a9 1599
1da177e4
LT
1600#
1601# - Highmem only makes sense for the 32-bit kernel.
1602# - The current highmem code will only work properly on physically indexed
1603# caches such as R3000, SB1, R7000 or those that look like they're virtually
1604# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1605# moment we protect the user and offer the highmem option only on machines
1606# where it's known to be safe. This will not offer highmem on a few systems
1607# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1608# indexed CPUs but we're playing safe.
797798c1
RB
1609# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1610# know they might have memory configurations that could make use of highmem
1611# support.
1da177e4
LT
1612#
1613config HIGHMEM
1614 bool "High Memory Support"
797798c1
RB
1615 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1616
1617config CPU_SUPPORTS_HIGHMEM
1618 bool
1619
1620config SYS_SUPPORTS_HIGHMEM
1621 bool
1da177e4 1622
9693a853
FBH
1623config SYS_SUPPORTS_SMARTMIPS
1624 bool
1625
b4819b59
YY
1626config ARCH_FLATMEM_ENABLE
1627 def_bool y
1628 depends on !NUMA
1629
d8cb4e11
RB
1630config ARCH_DISCONTIGMEM_ENABLE
1631 bool
1632 default y if SGI_IP27
1633 help
3dde6ad8 1634 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1635 for architectures which are either NUMA (Non-Uniform Memory Access)
1636 or have huge holes in the physical address space for other reasons.
1637 See <file:Documentation/vm/numa> for more.
1638
31473747
AN
1639config ARCH_SPARSEMEM_ENABLE
1640 bool
7de58fab 1641 select SPARSEMEM_STATIC
31473747 1642
d8cb4e11
RB
1643config NUMA
1644 bool "NUMA Support"
1645 depends on SYS_SUPPORTS_NUMA
1646 help
1647 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1648 Access). This option improves performance on systems with more
1649 than two nodes; on two node systems it is generally better to
1650 leave it disabled; on single node systems disable this option
1651 disabled.
1652
1653config SYS_SUPPORTS_NUMA
1654 bool
1655
c80d79d7
YG
1656config NODES_SHIFT
1657 int
1658 default "6"
1659 depends on NEED_MULTIPLE_NODES
1660
b4819b59
YY
1661source "mm/Kconfig"
1662
1da177e4
LT
1663config SMP
1664 bool "Multi-Processing support"
e73ea273 1665 depends on SYS_SUPPORTS_SMP
b4b30a5a 1666 select IRQ_PER_CPU
e73ea273 1667 help
1da177e4
LT
1668 This enables support for systems with more than one CPU. If you have
1669 a system with only one CPU, like most personal computers, say N. If
1670 you have a system with more than one CPU, say Y.
1671
1672 If you say N here, the kernel will run on single and multiprocessor
1673 machines, but will use only one CPU of a multiprocessor machine. If
1674 you say Y here, the kernel will run on many, but not all,
1675 singleprocessor machines. On a singleprocessor machine, the kernel
1676 will run faster if you say N here.
1677
1678 People using multiprocessor machines who say Y here should also say
1679 Y to "Enhanced Real Time Clock Support", below.
1680
1681 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1682 available at <http://www.tldp.org/docs.html#howto>.
1683
1684 If you don't know what to do here, say N.
1685
e73ea273
RB
1686config SYS_SUPPORTS_SMP
1687 bool
1688
72ede9b1
AN
1689config NR_CPUS_DEFAULT_1
1690 bool
1691
130e2fb7
RB
1692config NR_CPUS_DEFAULT_2
1693 bool
1694
1695config NR_CPUS_DEFAULT_4
1696 bool
1697
1698config NR_CPUS_DEFAULT_8
1699 bool
1700
1701config NR_CPUS_DEFAULT_16
1702 bool
1703
1704config NR_CPUS_DEFAULT_32
1705 bool
1706
1707config NR_CPUS_DEFAULT_64
1708 bool
1709
1da177e4
LT
1710config NR_CPUS
1711 int "Maximum number of CPUs (2-64)"
72ede9b1 1712 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1713 depends on SMP
72ede9b1 1714 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1715 default "2" if NR_CPUS_DEFAULT_2
1716 default "4" if NR_CPUS_DEFAULT_4
1717 default "8" if NR_CPUS_DEFAULT_8
1718 default "16" if NR_CPUS_DEFAULT_16
1719 default "32" if NR_CPUS_DEFAULT_32
1720 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1721 help
1722 This allows you to specify the maximum number of CPUs which this
1723 kernel will support. The maximum supported value is 32 for 32-bit
1724 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1725 sense is 1 for Qemu (useful only for kernel debugging purposes)
1726 and 2 for all others.
1da177e4
LT
1727
1728 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1729 approximately eight kilobytes to the kernel image. For best
1730 performance should round up your number of processors to the next
1731 power of two.
1da177e4 1732
1723b4a3
AN
1733#
1734# Timer Interrupt Frequency Configuration
1735#
1736
1737choice
1738 prompt "Timer frequency"
1739 default HZ_250
1740 help
1741 Allows the configuration of the timer frequency.
1742
1743 config HZ_48
1744 bool "48 HZ" if SYS_SUPPORTS_48HZ
1745
1746 config HZ_100
1747 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1748
1749 config HZ_128
1750 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1751
1752 config HZ_250
1753 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1754
1755 config HZ_256
1756 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1757
1758 config HZ_1000
1759 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1760
1761 config HZ_1024
1762 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1763
1764endchoice
1765
1766config SYS_SUPPORTS_48HZ
1767 bool
1768
1769config SYS_SUPPORTS_100HZ
1770 bool
1771
1772config SYS_SUPPORTS_128HZ
1773 bool
1774
1775config SYS_SUPPORTS_250HZ
1776 bool
1777
1778config SYS_SUPPORTS_256HZ
1779 bool
1780
1781config SYS_SUPPORTS_1000HZ
1782 bool
1783
1784config SYS_SUPPORTS_1024HZ
1785 bool
1786
1787config SYS_SUPPORTS_ARBIT_HZ
1788 bool
1789 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1790 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1791 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1792 !SYS_SUPPORTS_1024HZ
1793
1794config HZ
1795 int
1796 default 48 if HZ_48
1797 default 100 if HZ_100
1798 default 128 if HZ_128
1799 default 250 if HZ_250
1800 default 256 if HZ_256
1801 default 1000 if HZ_1000
1802 default 1024 if HZ_1024
1803
e80de850 1804source "kernel/Kconfig.preempt"
1da177e4 1805
1da177e4
LT
1806config MIPS_INSANE_LARGE
1807 bool "Support for large 64-bit configurations"
875d43e7 1808 depends on CPU_R10000 && 64BIT
1da177e4
LT
1809 help
1810 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1811 previous 64-bit processors which only supported 40 bit / 1TB. If you
1812 need processes of more than 1TB virtual address space, say Y here.
1813 This will result in additional memory usage, so it is not
1814 recommended for normal users.
1815
ea6e942b
AN
1816config KEXEC
1817 bool "Kexec system call (EXPERIMENTAL)"
1818 depends on EXPERIMENTAL
1819 help
1820 kexec is a system call that implements the ability to shutdown your
1821 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 1822 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
1823 you can start any kernel with it, not just Linux.
1824
01dd2fbf 1825 The name comes from the similarity to the exec system call.
ea6e942b
AN
1826
1827 It is an ongoing process to be certain the hardware in a machine
1828 is properly shutdown, so do not be surprised if this code does not
1829 initially work for you. It may help to enable device hotplugging
1830 support. As of this writing the exact hardware interface is
1831 strongly in flux, so no good recommendation can be made.
1832
1833config SECCOMP
1834 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 1835 depends on PROC_FS
ea6e942b
AN
1836 default y
1837 help
1838 This kernel feature is useful for number crunching applications
1839 that may need to compute untrusted bytecode during their
1840 execution. By using pipes or other transports made available to
1841 the process as file descriptors supporting the read/write
1842 syscalls, it's possible to isolate those applications in
1843 their own address space using seccomp. Once seccomp is
1844 enabled via /proc/<pid>/seccomp, it cannot be disabled
1845 and the task is only allowed to execute a few safe syscalls
1846 defined by each seccomp mode.
1847
1848 If unsure, say Y. Only embedded should say N here.
1849
5e83d430
RB
1850endmenu
1851
1da177e4
LT
1852config RWSEM_GENERIC_SPINLOCK
1853 bool
1854 default y
1855
1df0f0ff
AN
1856config LOCKDEP_SUPPORT
1857 bool
1858 default y
1859
1860config STACKTRACE_SUPPORT
1861 bool
1862 default y
1863
b6c3539b
RB
1864source "init/Kconfig"
1865
1da177e4
LT
1866menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1867
5e83d430
RB
1868config HW_HAS_EISA
1869 bool
1da177e4
LT
1870config HW_HAS_PCI
1871 bool
1872
1873config PCI
1874 bool "Support for PCI controller"
1875 depends on HW_HAS_PCI
abb4ae46 1876 select PCI_DOMAINS
1da177e4
LT
1877 help
1878 Find out whether you have a PCI motherboard. PCI is the name of a
1879 bus system, i.e. the way the CPU talks to the other stuff inside
1880 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1881 say Y, otherwise N.
1882
1883 The PCI-HOWTO, available from
1884 <http://www.tldp.org/docs.html#howto>, contains valuable
1885 information about which PCI hardware does work under Linux and which
1886 doesn't.
1887
1888config PCI_DOMAINS
1889 bool
1da177e4
LT
1890
1891source "drivers/pci/Kconfig"
1892
1893#
1894# ISA support is now enabled via select. Too many systems still have the one
1895# or other ISA chip on the board that users don't know about so don't expect
1896# users to choose the right thing ...
1897#
1898config ISA
1899 bool
1900
1901config EISA
1902 bool "EISA support"
5e83d430 1903 depends on HW_HAS_EISA
1da177e4 1904 select ISA
aa414dff 1905 select GENERIC_ISA_DMA
1da177e4
LT
1906 ---help---
1907 The Extended Industry Standard Architecture (EISA) bus was
1908 developed as an open alternative to the IBM MicroChannel bus.
1909
1910 The EISA bus provided some of the features of the IBM MicroChannel
1911 bus while maintaining backward compatibility with cards made for
1912 the older ISA bus. The EISA bus saw limited use between 1988 and
1913 1995 when it was made obsolete by the PCI bus.
1914
1915 Say Y here if you are building a kernel for an EISA-based machine.
1916
1917 Otherwise, say N.
1918
1919source "drivers/eisa/Kconfig"
1920
1921config TC
1922 bool "TURBOchannel support"
1923 depends on MACH_DECSTATION
1924 help
1925 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1926 processors. Documentation on writing device drivers for TurboChannel
1927 is available at:
1928 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1929
1930#config ACCESSBUS
1931# bool "Access.Bus support"
1932# depends on TC
1933
1934config MMU
1935 bool
1936 default y
1937
d865bea4
RB
1938config I8253
1939 bool
1940
de61b542 1941config PCSPEAKER
e5c6c8e4
MN
1942 bool
1943
1da177e4
LT
1944source "drivers/pcmcia/Kconfig"
1945
1946source "drivers/pci/hotplug/Kconfig"
1947
1948endmenu
1949
1950menu "Executable file formats"
1951
1952source "fs/Kconfig.binfmt"
1953
1954config TRAD_SIGNALS
1955 bool
1da177e4 1956
1da177e4
LT
1957config BINFMT_IRIX
1958 bool "Include IRIX binary compatibility"
5e83d430 1959 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1da177e4
LT
1960
1961config MIPS32_COMPAT
1962 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 1963 depends on 64BIT
1da177e4
LT
1964 help
1965 Select this option if you want Linux/MIPS 32-bit binary
1966 compatibility. Since all software available for Linux/MIPS is
1967 currently 32-bit you should say Y here.
1968
1969config COMPAT
1970 bool
1971 depends on MIPS32_COMPAT
1972 default y
1973
05e43966
AN
1974config SYSVIPC_COMPAT
1975 bool
1976 depends on COMPAT && SYSVIPC
1977 default y
1978
1da177e4
LT
1979config MIPS32_O32
1980 bool "Kernel support for o32 binaries"
1981 depends on MIPS32_COMPAT
1982 help
1983 Select this option if you want to run o32 binaries. These are pure
1984 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1985 existing binaries are in this format.
1986
1987 If unsure, say Y.
1988
1989config MIPS32_N32
1990 bool "Kernel support for n32 binaries"
1991 depends on MIPS32_COMPAT
1992 help
1993 Select this option if you want to run n32 binaries. These are
1994 64-bit binaries using 32-bit quantities for addressing and certain
1995 data that would normally be 64-bit. They are used in special
1996 cases.
1997
1998 If unsure, say N.
1999
2000config BINFMT_ELF32
2001 bool
2002 default y if MIPS32_O32 || MIPS32_N32
2003
2116245e
RB
2004endmenu
2005
2006menu "Power management options"
2007
2008source "kernel/power/Kconfig"
952fa954 2009
1da177e4
LT
2010endmenu
2011
d5950b43
SR
2012source "net/Kconfig"
2013
1da177e4
LT
2014source "drivers/Kconfig"
2015
2016source "fs/Kconfig"
2017
09cadedb 2018source "kernel/Kconfig.instrumentation"
5e83d430 2019
1da177e4
LT
2020source "arch/mips/Kconfig.debug"
2021
2022source "security/Kconfig"
2023
2024source "crypto/Kconfig"
2025
2026source "lib/Kconfig"
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