[MIPS] Handle R4000/R4400 mfc0 from count register.
[linux-2.6-block.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
a57c2289 364 select SYS_HAS_EARLY_PRINTK
07119621
RB
365 select SYS_SUPPORTS_32BIT_KERNEL
366 select SYS_SUPPORTS_BIG_ENDIAN
c8cc9618 367 select SYS_SUPPORTS_LITTLE_ENDIAN
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
651194f8 549 select SYS_SUPPORTS_HIGHMEM
5e83d430 550 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 551
14b36af4
TB
552config SNI_RM
553 bool "SNI RM200/300/400"
4a0312fc
TB
554 select ARC if CPU_LITTLE_ENDIAN
555 select ARC32 if CPU_LITTLE_ENDIAN
61ed242d 556 select ARCH_MAY_HAVE_PC_FDC
1da177e4 557 select BOOT_ELF32
42f77542 558 select CEVT_R4K
1da177e4
LT
559 select DMA_NONCOHERENT
560 select GENERIC_ISA_DMA
5e83d430 561 select HW_HAS_EISA
1da177e4 562 select HW_HAS_PCI
c066a32a 563 select IRQ_CPU
d865bea4 564 select I8253
1da177e4
LT
565 select I8259
566 select ISA
de61b542 567 select PCSPEAKER
4a0312fc 568 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 569 select SYS_HAS_CPU_R4X00
4a0312fc 570 select SYS_HAS_CPU_R5000
c066a32a 571 select SYS_HAS_CPU_R10000
4a0312fc 572 select R5000_CPU_SCACHE
36a88530 573 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
574 select SYS_SUPPORTS_32BIT_KERNEL
575 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
4a0312fc 576 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 577 select SYS_SUPPORTS_HIGHMEM
5e83d430 578 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 579 help
14b36af4
TB
580 The SNI RM200/300/400 are MIPS-based machines manufactured by
581 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
582 Technology and now in turn merged with Fujitsu. Say Y here to
583 support this machine type.
584
5e83d430 585config TOSHIBA_JMR3927
3fa986fa 586 bool "Toshiba JMR-TX3927 board"
229f773e 587 select CEVT_TXX9
5e83d430
RB
588 select DMA_NONCOHERENT
589 select HW_HAS_PCI
590 select MIPS_TX3927
c87abd75 591 select IRQ_TXX9
5e83d430 592 select SWAP_IO_SPACE
7cf8053b 593 select SYS_HAS_CPU_TX39XX
5e83d430 594 select SYS_SUPPORTS_32BIT_KERNEL
6a2603a2 595 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 596 select SYS_SUPPORTS_BIG_ENDIAN
2127435e 597 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 598
1da177e4 599config TOSHIBA_RBTX4927
08a91283 600 bool "Toshiba RBTX49[23]7 board"
42f77542 601 select CEVT_R4K
229f773e 602 select CEVT_TXX9
1da177e4
LT
603 select DMA_NONCOHERENT
604 select HAS_TXX9_SERIAL
605 select HW_HAS_PCI
c87abd75
AN
606 select IRQ_CPU
607 select IRQ_TXX9
608 select I8259 if TOSHIBA_FPCIB0
1da177e4 609 select SWAP_IO_SPACE
7cf8053b 610 select SYS_HAS_CPU_TX49XX
ed5ba2fb
YY
611 select SYS_SUPPORTS_32BIT_KERNEL
612 select SYS_SUPPORTS_64BIT_KERNEL
6a2603a2 613 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 614 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 615 select SYS_SUPPORTS_KGDB
9fd32cfb 616 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
617 help
618 This Toshiba board is based on the TX4927 processor. Say Y here to
619 support this machine type
620
5e83d430 621config TOSHIBA_RBTX4938
3fa986fa 622 bool "Toshiba RBTX4938 board"
42f77542 623 select CEVT_R4K
229f773e 624 select CEVT_TXX9
5e83d430 625 select DMA_NONCOHERENT
5e83d430
RB
626 select HAS_TXX9_SERIAL
627 select HW_HAS_PCI
c87abd75
AN
628 select IRQ_CPU
629 select IRQ_TXX9
5e83d430 630 select SWAP_IO_SPACE
7cf8053b 631 select SYS_HAS_CPU_TX49XX
5e83d430
RB
632 select SYS_SUPPORTS_32BIT_KERNEL
633 select SYS_SUPPORTS_LITTLE_ENDIAN
634 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 635 select SYS_SUPPORTS_KGDB
9fd32cfb 636 select GENERIC_HARDIRQS_NO__DO_IRQ
3896b054 637 select GENERIC_GPIO
5e83d430
RB
638 help
639 This Toshiba board is based on the TX4938 processor. Say Y here to
640 support this machine type
641
ade299d8
YY
642config WR_PPMC
643 bool "Wind River PPMC board"
42f77542 644 select CEVT_R4K
ade299d8
YY
645 select IRQ_CPU
646 select BOOT_ELF32
647 select DMA_NONCOHERENT
648 select HW_HAS_PCI
649 select PCI_GT64XXX_PCI0
650 select SWAP_IO_SPACE
651 select SYS_HAS_CPU_MIPS32_R1
652 select SYS_HAS_CPU_MIPS32_R2
653 select SYS_HAS_CPU_MIPS64_R1
654 select SYS_HAS_CPU_NEVADA
655 select SYS_HAS_CPU_RM7000
656 select SYS_SUPPORTS_32BIT_KERNEL
657 select SYS_SUPPORTS_64BIT_KERNEL
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_LITTLE_ENDIAN
660 help
661 This enables support for the Wind River MIPS32 4KC PPMC evaluation
662 board, which is based on GT64120 bridge chip.
663
5e83d430 664endchoice
1da177e4 665
c3543e25 666source "arch/mips/au1000/Kconfig"
5e83d430 667source "arch/mips/jazz/Kconfig"
1f21d2bd 668source "arch/mips/lasat/Kconfig"
5e83d430 669source "arch/mips/pmc-sierra/Kconfig"
29c48699 670source "arch/mips/sgi-ip27/Kconfig"
38b18f72 671source "arch/mips/sibyte/Kconfig"
5e83d430 672source "arch/mips/tx4927/Kconfig"
23fbee9d 673source "arch/mips/tx4938/Kconfig"
5e83d430 674source "arch/mips/vr41xx/Kconfig"
38b18f72 675
5e83d430
RB
676endmenu
677
1da177e4
LT
678config RWSEM_GENERIC_SPINLOCK
679 bool
680 default y
681
682config RWSEM_XCHGADD_ALGORITHM
683 bool
684
f0d1b0b3
DH
685config ARCH_HAS_ILOG2_U32
686 bool
687 default n
688
689config ARCH_HAS_ILOG2_U64
690 bool
691 default n
692
3c9ee7ef
AM
693config GENERIC_FIND_NEXT_BIT
694 bool
695 default y
696
697config GENERIC_HWEIGHT
698 bool
699 default y
700
1da177e4
LT
701config GENERIC_CALIBRATE_DELAY
702 bool
703 default y
704
7bcf7717
RB
705config GENERIC_CLOCKEVENTS
706 bool
707 default y
708
8db02010
RB
709config GENERIC_TIME
710 bool
711 default y
712
f5ff0a28
RB
713config GENERIC_CMOS_UPDATE
714 bool
715 default y
716
1cc89038
AN
717config SCHED_NO_NO_OMIT_FRAME_POINTER
718 bool
719 default y
720
e77c232c
FBH
721config GENERIC_HARDIRQS_NO__DO_IRQ
722 bool
723 default n
724
1da177e4
LT
725#
726# Select some configuration options automatically based on user selections.
727#
728config ARC
729 bool
1da177e4 730
61ed242d
RB
731config ARCH_MAY_HAVE_PC_FDC
732 bool
733
9267a30d
MSJ
734config BOOT_RAW
735 bool
736
217dd11e
RB
737config CEVT_BCM1480
738 bool
739
1097c6ac
YY
740config CEVT_GT641XX
741 bool
742
42f77542
RB
743config CEVT_R4K
744 bool
745
217dd11e
RB
746config CEVT_SB1250
747 bool
748
229f773e
AN
749config CEVT_TXX9
750 bool
751
217dd11e
RB
752config CSRC_BCM1480
753 bool
754
755config CSRC_SB1250
756 bool
757
df78b5c8
AJ
758config CFE
759 bool
760
4ce588cd 761config DMA_COHERENT
1da177e4
LT
762 bool
763
4ce588cd 764config DMA_IP27
1da177e4
LT
765 bool
766
4ce588cd
RB
767config DMA_IP32
768 bool
769 select DMA_NEED_PCI_MAP_STATE
770
771config DMA_NONCOHERENT
772 bool
773 select DMA_NEED_PCI_MAP_STATE
774
775config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
776 bool
777
778config EARLY_PRINTK
36a88530
RB
779 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
780 depends on SYS_HAS_EARLY_PRINTK
781 default y
782 help
783 This option enables special console drivers which allow the kernel
784 to print messages very early in the bootup process.
785
786 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
787 early before the console code is initialized. For normal operation,
788 it is not recommended because it looks ugly on some machines and
789 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
790 unless you want to debug such a crash.
791
792config SYS_HAS_EARLY_PRINTK
1da177e4 793 bool
1da177e4 794
dbb74540
RB
795config HOTPLUG_CPU
796 bool
797 default n
798
1da177e4
LT
799config I8259
800 bool
1da177e4 801
1da177e4
LT
802config MIPS_BONITO64
803 bool
1da177e4
LT
804
805config MIPS_MSC
806 bool
1da177e4 807
1f21d2bd
BM
808config MIPS_NILE4
809 bool
810
1da177e4
LT
811config MIPS_DISABLE_OBSOLETE_IDE
812 bool
813
d388d685
MR
814config NO_IOPORT
815 def_bool n
816
8313da30
RB
817config GENERIC_ISA_DMA
818 bool
819 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
820
aa414dff
RB
821config GENERIC_ISA_DMA_SUPPORT_BROKEN
822 bool
8313da30 823 select GENERIC_ISA_DMA
aa414dff 824
09663335
YY
825config GENERIC_GPIO
826 bool
827
5e83d430 828#
3cb2fccc 829# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
830# answer,so we try hard to limit the available choices. Also the use of a
831# choice statement should be more obvious to the user.
832#
833choice
834 prompt "Endianess selection"
1da177e4
LT
835 help
836 Some MIPS machines can be configured for either little or big endian
5e83d430 837 byte order. These modes require different kernels and a different
3cb2fccc 838 Linux distribution. In general there is one preferred byteorder for a
5e83d430 839 particular system but some systems are just as commonly used in the
3dde6ad8 840 one or the other endianness.
5e83d430
RB
841
842config CPU_BIG_ENDIAN
843 bool "Big endian"
844 depends on SYS_SUPPORTS_BIG_ENDIAN
845
846config CPU_LITTLE_ENDIAN
847 bool "Little endian"
848 depends on SYS_SUPPORTS_LITTLE_ENDIAN
849 help
850
851endchoice
852
2116245e
RB
853config SYS_SUPPORTS_APM_EMULATION
854 bool
855
5e83d430
RB
856config SYS_SUPPORTS_BIG_ENDIAN
857 bool
858
859config SYS_SUPPORTS_LITTLE_ENDIAN
860 bool
1da177e4
LT
861
862config IRQ_CPU
863 bool
864
865config IRQ_CPU_RM7K
866 bool
867
5e83d430
RB
868config IRQ_CPU_RM9K
869 bool
870
9267a30d
MSJ
871config IRQ_MSP_SLP
872 bool
873
874config IRQ_MSP_CIC
875 bool
876
8420fd00
AN
877config IRQ_TXX9
878 bool
879
d5ab1a69
YY
880config IRQ_GT641XX
881 bool
882
1da177e4
LT
883config MIPS_BOARDS_GEN
884 bool
1da177e4 885
252161ec 886config PCI_GT64XXX_PCI0
1da177e4 887 bool
1da177e4 888
9267a30d
MSJ
889config NO_EXCEPT_FILL
890 bool
891
1da177e4
LT
892config MIPS_TX3927
893 bool
1da177e4 894 select HAS_TXX9_SERIAL
1da177e4 895
663c3d90 896config MIPS_RM9122
897 bool
898 select SERIAL_RM9000
663c3d90 899
bdf21b18
PP
900config PNX8550
901 bool
902 select SOC_PNX8550
903
904config SOC_PNX8550
905 bool
bdf21b18
PP
906 select DMA_NONCOHERENT
907 select HW_HAS_PCI
b8c2a77c 908 select SYS_HAS_CPU_MIPS32_R1
36a88530 909 select SYS_HAS_EARLY_PRINTK
7cf8053b 910 select SYS_SUPPORTS_32BIT_KERNEL
e77c232c 911 select GENERIC_HARDIRQS_NO__DO_IRQ
cc801077 912 select SYS_SUPPORTS_KGDB
4ead1681 913 select GENERIC_GPIO
bdf21b18 914
1da177e4
LT
915config SWAP_IO_SPACE
916 bool
917
355c471f 918config EMMA2RH
919 bool
920 depends on MARKEINS
921 default y
922
663c3d90 923config SERIAL_RM9000
924 bool
925
5e83d430
RB
926config ARC32
927 bool
928
1da177e4
LT
929config BOOT_ELF32
930 bool
1da177e4
LT
931
932config MIPS_L1_CACHE_SHIFT
933 int
06cf5583
TB
934 default "4" if MACH_DECSTATION
935 default "7" if SGI_IP27 || SNI_RM
9267a30d 936 default "4" if PMC_MSP4200_EVAL
1da177e4
LT
937 default "5"
938
1da177e4
LT
939config HAVE_STD_PC_SERIAL_PORT
940 bool
941
1da177e4
LT
942config ARC_CONSOLE
943 bool "ARC console support"
36a88530 944 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
945
946config ARC_MEMORY
947 bool
14b36af4 948 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
949 default y
950
951config ARC_PROMLIB
952 bool
14b36af4 953 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1da177e4
LT
954 default y
955
956config ARC64
957 bool
1da177e4
LT
958
959config BOOT_ELF64
960 bool
1da177e4 961
1da177e4
LT
962menu "CPU selection"
963
7bcf7717
RB
964source "kernel/time/Kconfig"
965
1da177e4
LT
966choice
967 prompt "CPU type"
968 default CPU_R4X00
969
2a21c730
FZ
970config CPU_LOONGSON2
971 bool "Loongson 2"
972 depends on SYS_HAS_CPU_LOONGSON2
973 select CPU_SUPPORTS_32BIT_KERNEL
974 select CPU_SUPPORTS_64BIT_KERNEL
975 select CPU_SUPPORTS_HIGHMEM
976 help
977 The Loongson 2E processor implements the MIPS III instruction set
978 with many extensions.
979
6e760c8d
RB
980config CPU_MIPS32_R1
981 bool "MIPS32 Release 1"
7cf8053b 982 depends on SYS_HAS_CPU_MIPS32_R1
f7062ddb 983 select CPU_HAS_LLSC
6e760c8d 984 select CPU_HAS_PREFETCH
797798c1 985 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 986 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 987 help
5e83d430 988 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
989 MIPS32 architecture. Most modern embedded systems with a 32-bit
990 MIPS processor are based on a MIPS32 processor. If you know the
991 specific type of processor in your system, choose those that one
992 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
993 Release 2 of the MIPS32 architecture is available since several
994 years so chances are you even have a MIPS32 Release 2 processor
995 in which case you should choose CPU_MIPS32_R2 instead for better
996 performance.
997
998config CPU_MIPS32_R2
999 bool "MIPS32 Release 2"
7cf8053b 1000 depends on SYS_HAS_CPU_MIPS32_R2
f7062ddb 1001 select CPU_HAS_LLSC
1e5f1caa 1002 select CPU_HAS_PREFETCH
797798c1 1003 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1004 select CPU_SUPPORTS_HIGHMEM
6e760c8d 1005 help
5e83d430 1006 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1007 MIPS32 architecture. Most modern embedded systems with a 32-bit
1008 MIPS processor are based on a MIPS32 processor. If you know the
1009 specific type of processor in your system, choose those that one
1010 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1011
1012config CPU_MIPS64_R1
1013 bool "MIPS64 Release 1"
7cf8053b 1014 depends on SYS_HAS_CPU_MIPS64_R1
f7062ddb 1015 select CPU_HAS_LLSC
797798c1 1016 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1017 select CPU_SUPPORTS_32BIT_KERNEL
1018 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1019 select CPU_SUPPORTS_HIGHMEM
6e760c8d
RB
1020 help
1021 Choose this option to build a kernel for release 1 or later of the
1022 MIPS64 architecture. Many modern embedded systems with a 64-bit
1023 MIPS processor are based on a MIPS64 processor. If you know the
1024 specific type of processor in your system, choose those that one
1025 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1026 Release 2 of the MIPS64 architecture is available since several
1027 years so chances are you even have a MIPS64 Release 2 processor
1028 in which case you should choose CPU_MIPS64_R2 instead for better
1029 performance.
1030
1031config CPU_MIPS64_R2
1032 bool "MIPS64 Release 2"
7cf8053b 1033 depends on SYS_HAS_CPU_MIPS64_R2
f7062ddb 1034 select CPU_HAS_LLSC
797798c1 1035 select CPU_HAS_PREFETCH
1e5f1caa
RB
1036 select CPU_SUPPORTS_32BIT_KERNEL
1037 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1038 select CPU_SUPPORTS_HIGHMEM
1e5f1caa
RB
1039 help
1040 Choose this option to build a kernel for release 2 or later of the
1041 MIPS64 architecture. Many modern embedded systems with a 64-bit
1042 MIPS processor are based on a MIPS64 processor. If you know the
1043 specific type of processor in your system, choose those that one
1044 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1045
1046config CPU_R3000
1047 bool "R3000"
7cf8053b 1048 depends on SYS_HAS_CPU_R3000
f7062ddb 1049 select CPU_HAS_WB
ed5ba2fb 1050 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1051 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1052 help
1053 Please make sure to pick the right CPU type. Linux/MIPS is not
1054 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1055 *not* work on R4000 machines and vice versa. However, since most
1056 of the supported machines have an R4000 (or similar) CPU, R4x00
1057 might be a safe bet. If the resulting kernel does not work,
1058 try to recompile with R3000.
1059
1060config CPU_TX39XX
1061 bool "R39XX"
7cf8053b 1062 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1063 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1064
1065config CPU_VR41XX
1066 bool "R41xx"
7cf8053b 1067 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1068 select CPU_SUPPORTS_32BIT_KERNEL
1069 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1070 help
5e83d430 1071 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1072 Only choose this option if you have one of these processors as a
1073 kernel built with this option will not run on any other type of
1074 processor or vice versa.
1075
1076config CPU_R4300
1077 bool "R4300"
7cf8053b 1078 depends on SYS_HAS_CPU_R4300
f7062ddb 1079 select CPU_HAS_LLSC
ed5ba2fb
YY
1080 select CPU_SUPPORTS_32BIT_KERNEL
1081 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1082 help
1083 MIPS Technologies R4300-series processors.
1084
1085config CPU_R4X00
1086 bool "R4x00"
7cf8053b 1087 depends on SYS_HAS_CPU_R4X00
f7062ddb 1088 select CPU_HAS_LLSC
ed5ba2fb
YY
1089 select CPU_SUPPORTS_32BIT_KERNEL
1090 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1091 help
1092 MIPS Technologies R4000-series processors other than 4300, including
1093 the R4000, R4400, R4600, and 4700.
1094
1095config CPU_TX49XX
1096 bool "R49XX"
7cf8053b 1097 depends on SYS_HAS_CPU_TX49XX
f7062ddb 1098 select CPU_HAS_LLSC
de862b48 1099 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1100 select CPU_SUPPORTS_32BIT_KERNEL
1101 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1102
1103config CPU_R5000
1104 bool "R5000"
7cf8053b 1105 depends on SYS_HAS_CPU_R5000
f7062ddb 1106 select CPU_HAS_LLSC
ed5ba2fb
YY
1107 select CPU_SUPPORTS_32BIT_KERNEL
1108 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1109 help
1110 MIPS Technologies R5000-series processors other than the Nevada.
1111
1112config CPU_R5432
1113 bool "R5432"
7cf8053b 1114 depends on SYS_HAS_CPU_R5432
f7062ddb 1115 select CPU_HAS_LLSC
5e83d430
RB
1116 select CPU_SUPPORTS_32BIT_KERNEL
1117 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1118
1119config CPU_R6000
1120 bool "R6000"
ed5ba2fb 1121 depends on EXPERIMENTAL
f7062ddb 1122 select CPU_HAS_LLSC
7cf8053b 1123 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1124 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1125 help
1126 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1127 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1128
1129config CPU_NEVADA
1130 bool "RM52xx"
7cf8053b 1131 depends on SYS_HAS_CPU_NEVADA
f7062ddb 1132 select CPU_HAS_LLSC
ed5ba2fb
YY
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1135 help
1136 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1137
1138config CPU_R8000
1139 bool "R8000"
ed5ba2fb 1140 depends on EXPERIMENTAL
7cf8053b 1141 depends on SYS_HAS_CPU_R8000
f7062ddb 1142 select CPU_HAS_LLSC
5e83d430 1143 select CPU_HAS_PREFETCH
ed5ba2fb 1144 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1145 help
1146 MIPS Technologies R8000 processors. Note these processors are
1147 uncommon and the support for them is incomplete.
1148
1149config CPU_R10000
1150 bool "R10000"
7cf8053b 1151 depends on SYS_HAS_CPU_R10000
f7062ddb 1152 select CPU_HAS_LLSC
5e83d430 1153 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1154 select CPU_SUPPORTS_32BIT_KERNEL
1155 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1156 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1157 help
1158 MIPS Technologies R10000-series processors.
1159
1160config CPU_RM7000
1161 bool "RM7000"
7cf8053b 1162 depends on SYS_HAS_CPU_RM7000
f7062ddb 1163 select CPU_HAS_LLSC
5e83d430 1164 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1167 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1168
1169config CPU_RM9000
1170 bool "RM9000"
7cf8053b 1171 depends on SYS_HAS_CPU_RM9000
f7062ddb 1172 select CPU_HAS_LLSC
5e83d430 1173 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1174 select CPU_SUPPORTS_32BIT_KERNEL
1175 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1176 select CPU_SUPPORTS_HIGHMEM
0004a9df 1177 select WEAK_ORDERING
1da177e4
LT
1178
1179config CPU_SB1
1180 bool "SB1"
7cf8053b 1181 depends on SYS_HAS_CPU_SB1
f7062ddb 1182 select CPU_HAS_LLSC
ed5ba2fb
YY
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1185 select CPU_SUPPORTS_HIGHMEM
0004a9df 1186 select WEAK_ORDERING
1da177e4
LT
1187
1188endchoice
1189
2a21c730
FZ
1190config SYS_HAS_CPU_LOONGSON2
1191 bool
1192
7cf8053b
RB
1193config SYS_HAS_CPU_MIPS32_R1
1194 bool
1195
1196config SYS_HAS_CPU_MIPS32_R2
1197 bool
1198
1199config SYS_HAS_CPU_MIPS64_R1
1200 bool
1201
1202config SYS_HAS_CPU_MIPS64_R2
1203 bool
1204
1205config SYS_HAS_CPU_R3000
1206 bool
1207
1208config SYS_HAS_CPU_TX39XX
1209 bool
1210
1211config SYS_HAS_CPU_VR41XX
1212 bool
1213
1214config SYS_HAS_CPU_R4300
1215 bool
1216
1217config SYS_HAS_CPU_R4X00
1218 bool
1219
1220config SYS_HAS_CPU_TX49XX
1221 bool
1222
1223config SYS_HAS_CPU_R5000
1224 bool
1225
1226config SYS_HAS_CPU_R5432
1227 bool
1228
1229config SYS_HAS_CPU_R6000
1230 bool
1231
1232config SYS_HAS_CPU_NEVADA
1233 bool
1234
1235config SYS_HAS_CPU_R8000
1236 bool
1237
1238config SYS_HAS_CPU_R10000
1239 bool
1240
1241config SYS_HAS_CPU_RM7000
1242 bool
1243
1244config SYS_HAS_CPU_RM9000
1245 bool
1246
1247config SYS_HAS_CPU_SB1
1248 bool
1249
17099b11
RB
1250#
1251# CPU may reorder R->R, R->W, W->R, W->W
1252# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1253#
0004a9df
RB
1254config WEAK_ORDERING
1255 bool
17099b11
RB
1256
1257#
1258# CPU may reorder reads and writes beyond LL/SC
1259# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1260#
1261config WEAK_REORDERING_BEYOND_LLSC
1262 bool
5e83d430
RB
1263endmenu
1264
1265#
c09b47d8 1266# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1267#
1268config CPU_MIPS32
1269 bool
1270 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1271
1272config CPU_MIPS64
1273 bool
1274 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1275
1276#
c09b47d8 1277# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1278#
1279config CPU_MIPSR1
1280 bool
1281 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1282
1283config CPU_MIPSR2
1284 bool
1285 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1286
1287config SYS_SUPPORTS_32BIT_KERNEL
1288 bool
1289config SYS_SUPPORTS_64BIT_KERNEL
1290 bool
1291config CPU_SUPPORTS_32BIT_KERNEL
1292 bool
1293config CPU_SUPPORTS_64BIT_KERNEL
1294 bool
1295
1296menu "Kernel type"
1297
1298choice
1299
1300 prompt "Kernel code model"
1301 help
1302 You should only select this option if you have a workload that
1303 actually benefits from 64-bit processing or if your machine has
1304 large memory. You will only be presented a single option in this
1305 menu if your system does not support both 32-bit and 64-bit kernels.
1306
1307config 32BIT
1308 bool "32-bit kernel"
1309 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1310 select TRAD_SIGNALS
1311 help
1312 Select this option if you want to build a 32-bit kernel.
1313config 64BIT
1314 bool "64-bit kernel"
1315 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1316 help
1317 Select this option if you want to build a 64-bit kernel.
1318
1319endchoice
1320
1da177e4
LT
1321choice
1322 prompt "Kernel page size"
1323 default PAGE_SIZE_4KB
1324
1325config PAGE_SIZE_4KB
1326 bool "4kB"
1327 help
1328 This option select the standard 4kB Linux page size. On some
1329 R3000-family processors this is the only available page size. Using
1330 4kB page size will minimize memory consumption and is therefore
1331 recommended for low memory systems.
1332
1333config PAGE_SIZE_8KB
1334 bool "8kB"
1335 depends on EXPERIMENTAL && CPU_R8000
1336 help
1337 Using 8kB page size will result in higher performance kernel at
1338 the price of higher memory consumption. This option is available
1339 only on the R8000 processor. Not that at the time of this writing
1340 this option is still high experimental; there are also issues with
1341 compatibility of user applications.
1342
1343config PAGE_SIZE_16KB
1344 bool "16kB"
714bfad6 1345 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1346 help
1347 Using 16kB page size will result in higher performance kernel at
1348 the price of higher memory consumption. This option is available on
714bfad6
RB
1349 all non-R3000 family processors. Note that you will need a suitable
1350 Linux distribution to support this.
1da177e4
LT
1351
1352config PAGE_SIZE_64KB
1353 bool "64kB"
1354 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1355 help
1356 Using 64kB page size will result in higher performance kernel at
1357 the price of higher memory consumption. This option is available on
1358 all non-R3000 family processor. Not that at the time of this
714bfad6 1359 writing this option is still high experimental.
1da177e4
LT
1360
1361endchoice
1362
1363config BOARD_SCACHE
1364 bool
1365
1366config IP22_CPU_SCACHE
1367 bool
1368 select BOARD_SCACHE
1369
9318c51a
CD
1370#
1371# Support for a MIPS32 / MIPS64 style S-caches
1372#
1373config MIPS_CPU_SCACHE
1374 bool
1375 select BOARD_SCACHE
1376
1da177e4
LT
1377config R5000_CPU_SCACHE
1378 bool
1379 select BOARD_SCACHE
1380
1381config RM7000_CPU_SCACHE
1382 bool
1383 select BOARD_SCACHE
1384
1385config SIBYTE_DMA_PAGEOPS
1386 bool "Use DMA to clear/copy pages"
1387 depends on CPU_SB1
1388 help
1389 Instead of using the CPU to zero and copy pages, use a Data Mover
1390 channel. These DMA channels are otherwise unused by the standard
1391 SiByte Linux port. Seems to give a small performance benefit.
1392
1393config CPU_HAS_PREFETCH
c8094b53 1394 bool
1da177e4 1395
340ee4b9
RB
1396choice
1397 prompt "MIPS MT options"
f41ae0b2
RB
1398
1399config MIPS_MT_DISABLED
1400 bool "Disable multithreading support."
1401 help
1402 Use this option if your workload can't take advantage of
1403 MIPS hardware multithreading support. On systems that don't have
1404 the option of an MT-enabled processor this option will be the only
1405 option in this menu.
340ee4b9 1406
59d6ab86
RB
1407config MIPS_MT_SMP
1408 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1409 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1410 select CPU_MIPSR2_IRQ_VI
d725cf38 1411 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1412 select MIPS_MT
f510aa3b 1413 select NR_CPUS_DEFAULT_2
41c594ab 1414 select SMP
73b76c78 1415 select SYS_SUPPORTS_SMP
f41ae0b2 1416 help
59d6ab86
RB
1417 This is a kernel model which is also known a VSMP or lately
1418 has been marketesed into SMVP.
41c594ab 1419
59d6ab86
RB
1420config MIPS_MT_SMTC
1421 bool "SMTC: Use all TCs on all VPEs for SMP"
1422 depends on CPU_MIPS32_R2
1423 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2 1424 depends on SYS_SUPPORTS_MULTITHREADING
ea580401 1425 select GENERIC_CLOCKEVENTS_BROADCAST
f41ae0b2 1426 select CPU_MIPSR2_IRQ_VI
d725cf38 1427 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1428 select MIPS_MT
130e2fb7 1429 select NR_CPUS_DEFAULT_8
340ee4b9 1430 select SMP
73b76c78 1431 select SYS_SUPPORTS_SMP
f41ae0b2 1432 help
59d6ab86
RB
1433 This is a kernel model which is known a SMTC or lately has been
1434 marketesed into SMVP.
340ee4b9 1435
340ee4b9
RB
1436endchoice
1437
f41ae0b2
RB
1438config MIPS_MT
1439 bool
1440
1441config SYS_SUPPORTS_MULTITHREADING
1442 bool
1443
f088fc84
RB
1444config MIPS_MT_FPAFF
1445 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1446 default y
07cc0c9e
RB
1447 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1448
1449config MIPS_VPE_LOADER
1450 bool "VPE loader support."
1451 depends on SYS_SUPPORTS_MULTITHREADING
1452 select CPU_MIPSR2_IRQ_VI
1453 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1454 select MIPS_MT
1455 help
1456 Includes a loader for loading an elf relocatable object
1457 onto another VPE and running it.
f088fc84 1458
ac8be955
RB
1459config MIPS_MT_SMTC_INSTANT_REPLAY
1460 bool "Low-latency Dispatch of Deferred SMTC IPIs"
619af723 1461 depends on MIPS_MT_SMTC && !PREEMPT
ac8be955
RB
1462 default y
1463 help
1464 SMTC pseudo-interrupts between TCs are deferred and queued
1465 if the target TC is interrupt-inhibited (IXMT). In the first
1466 SMTC prototypes, these queued IPIs were serviced on return
1467 to user mode, or on entry into the kernel idle loop. The
1468 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1469 processing, which adds runtime overhead (hence the option to turn
1470 it off), but ensures that IPIs are handled promptly even under
1471 heavy I/O interrupt load.
1472
0db34215
KK
1473config MIPS_MT_SMTC_IM_BACKSTOP
1474 bool "Use per-TC register bits as backstop for inhibited IM bits"
1475 depends on MIPS_MT_SMTC
1476 default y
1477 help
1478 To support multiple TC microthreads acting as "CPUs" within
1479 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1480 during interrupt handling. To support legacy drivers and interrupt
1481 controller management code, SMTC has a "backstop" to track and
1482 if necessary restore the interrupt mask. This has some performance
1483 impact on interrupt service overhead. Disable it only if you know
1484 what you are doing.
1485
f571eff0
KK
1486config MIPS_MT_SMTC_IRQAFF
1487 bool "Support IRQ affinity API"
1488 depends on MIPS_MT_SMTC
1489 default n
1490 help
1491 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1492 for SMTC Linux kernel. Requires platform support, of which
1493 an example can be found in the MIPS kernel i8259 and Malta
1494 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1495 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1496 interrupt dispatch, and should be used only if you know what
1497 you are doing.
1498
e01402b1
RB
1499config MIPS_VPE_LOADER_TOM
1500 bool "Load VPE program into memory hidden from linux"
1501 depends on MIPS_VPE_LOADER
1502 default y
1503 help
1504 The loader can use memory that is present but has been hidden from
1505 Linux using the kernel command line option "mem=xxMB". It's up to
1506 you to ensure the amount you put in the option and the space your
1507 program requires is less or equal to the amount physically present.
1508
1509# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1510config MIPS_VPE_APSP_API
5e83d430
RB
1511 bool "Enable support for AP/SP API (RTLX)"
1512 depends on MIPS_VPE_LOADER
1513 help
e01402b1 1514
2600990e
RB
1515config MIPS_APSP_KSPD
1516 bool "Enable KSPD"
1517 depends on MIPS_VPE_APSP_API
1518 default y
1519 help
1520 KSPD is a kernel daemon that accepts syscall requests from the SP
1521 side, actions them and returns the results. It also handles the
1522 "exit" syscall notifying other kernel modules the SP program is
1523 exiting. You probably want to say yes here.
1524
1da177e4
LT
1525config SB1_PASS_1_WORKAROUNDS
1526 bool
1527 depends on CPU_SB1_PASS_1
1528 default y
1529
1530config SB1_PASS_2_WORKAROUNDS
1531 bool
1532 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1533 default y
1534
1535config SB1_PASS_2_1_WORKAROUNDS
1536 bool
1537 depends on CPU_SB1 && CPU_SB1_PASS_2
1538 default y
1539
1540config 64BIT_PHYS_ADDR
d806cb2b 1541 bool
1da177e4 1542
1da177e4 1543config CPU_HAS_LLSC
f7062ddb 1544 bool
1da177e4 1545
9693a853
FBH
1546config CPU_HAS_SMARTMIPS
1547 depends on SYS_SUPPORTS_SMARTMIPS
1548 bool "Support for the SmartMIPS ASE"
1549 help
1550 SmartMIPS is a extension of the MIPS32 architecture aimed at
1551 increased security at both hardware and software level for
1552 smartcards. Enabling this option will allow proper use of the
1553 SmartMIPS instructions by Linux applications. However a kernel with
1554 this option will not work on a MIPS core without SmartMIPS core. If
1555 you don't know you probably don't have SmartMIPS and should say N
1556 here.
1557
1da177e4 1558config CPU_HAS_WB
f7062ddb 1559 bool
e01402b1 1560
2a21c730
FZ
1561config 64BIT_CONTEXT
1562 bool "Save 64bit integer registers"
1563 depends on 32BIT && CPU_LOONGSON2
1564 help
1565 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1566 registers can still be accessed as 64bit, mainly for multimedia
1567 instructions. We must have all 64bit save/restored to make sure
1568 those instructions to get correct result.
1569
f41ae0b2
RB
1570#
1571# Vectored interrupt mode is an R2 feature
1572#
e01402b1 1573config CPU_MIPSR2_IRQ_VI
f41ae0b2 1574 bool
e01402b1 1575
f41ae0b2
RB
1576#
1577# Extended interrupt mode is an R2 feature
1578#
e01402b1 1579config CPU_MIPSR2_IRQ_EI
f41ae0b2 1580 bool
e01402b1 1581
1da177e4
LT
1582config CPU_HAS_SYNC
1583 bool
1584 depends on !CPU_R3000
1585 default y
1586
ea580401
RB
1587config GENERIC_CLOCKEVENTS_BROADCAST
1588 bool
1589
797798c1
RB
1590#
1591# Use the generic interrupt handling code in kernel/irq/:
1592#
1593config GENERIC_HARDIRQS
1594 bool
1595 default y
1596
1597config GENERIC_IRQ_PROBE
1598 bool
1599 default y
1600
0d7012a9 1601config IRQ_PER_CPU
0d7012a9 1602 bool
0d7012a9 1603
1da177e4
LT
1604#
1605# - Highmem only makes sense for the 32-bit kernel.
1606# - The current highmem code will only work properly on physically indexed
1607# caches such as R3000, SB1, R7000 or those that look like they're virtually
1608# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1609# moment we protect the user and offer the highmem option only on machines
1610# where it's known to be safe. This will not offer highmem on a few systems
1611# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1612# indexed CPUs but we're playing safe.
797798c1
RB
1613# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1614# know they might have memory configurations that could make use of highmem
1615# support.
1da177e4
LT
1616#
1617config HIGHMEM
1618 bool "High Memory Support"
797798c1
RB
1619 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1620
1621config CPU_SUPPORTS_HIGHMEM
1622 bool
1623
1624config SYS_SUPPORTS_HIGHMEM
1625 bool
1da177e4 1626
9693a853
FBH
1627config SYS_SUPPORTS_SMARTMIPS
1628 bool
1629
b4819b59
YY
1630config ARCH_FLATMEM_ENABLE
1631 def_bool y
1632 depends on !NUMA
1633
d8cb4e11
RB
1634config ARCH_DISCONTIGMEM_ENABLE
1635 bool
1636 default y if SGI_IP27
1637 help
3dde6ad8 1638 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1639 for architectures which are either NUMA (Non-Uniform Memory Access)
1640 or have huge holes in the physical address space for other reasons.
1641 See <file:Documentation/vm/numa> for more.
1642
31473747
AN
1643config ARCH_SPARSEMEM_ENABLE
1644 bool
7de58fab 1645 select SPARSEMEM_STATIC
31473747 1646
d8cb4e11
RB
1647config NUMA
1648 bool "NUMA Support"
1649 depends on SYS_SUPPORTS_NUMA
1650 help
1651 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1652 Access). This option improves performance on systems with more
1653 than two nodes; on two node systems it is generally better to
1654 leave it disabled; on single node systems disable this option
1655 disabled.
1656
1657config SYS_SUPPORTS_NUMA
1658 bool
1659
c80d79d7
YG
1660config NODES_SHIFT
1661 int
1662 default "6"
1663 depends on NEED_MULTIPLE_NODES
1664
b4819b59
YY
1665source "mm/Kconfig"
1666
1da177e4
LT
1667config SMP
1668 bool "Multi-Processing support"
e73ea273 1669 depends on SYS_SUPPORTS_SMP
b4b30a5a 1670 select IRQ_PER_CPU
e73ea273 1671 help
1da177e4
LT
1672 This enables support for systems with more than one CPU. If you have
1673 a system with only one CPU, like most personal computers, say N. If
1674 you have a system with more than one CPU, say Y.
1675
1676 If you say N here, the kernel will run on single and multiprocessor
1677 machines, but will use only one CPU of a multiprocessor machine. If
1678 you say Y here, the kernel will run on many, but not all,
1679 singleprocessor machines. On a singleprocessor machine, the kernel
1680 will run faster if you say N here.
1681
1682 People using multiprocessor machines who say Y here should also say
1683 Y to "Enhanced Real Time Clock Support", below.
1684
1685 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1686 available at <http://www.tldp.org/docs.html#howto>.
1687
1688 If you don't know what to do here, say N.
1689
e73ea273
RB
1690config SYS_SUPPORTS_SMP
1691 bool
1692
72ede9b1
AN
1693config NR_CPUS_DEFAULT_1
1694 bool
1695
130e2fb7
RB
1696config NR_CPUS_DEFAULT_2
1697 bool
1698
1699config NR_CPUS_DEFAULT_4
1700 bool
1701
1702config NR_CPUS_DEFAULT_8
1703 bool
1704
1705config NR_CPUS_DEFAULT_16
1706 bool
1707
1708config NR_CPUS_DEFAULT_32
1709 bool
1710
1711config NR_CPUS_DEFAULT_64
1712 bool
1713
1da177e4
LT
1714config NR_CPUS
1715 int "Maximum number of CPUs (2-64)"
72ede9b1 1716 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1717 depends on SMP
72ede9b1 1718 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1719 default "2" if NR_CPUS_DEFAULT_2
1720 default "4" if NR_CPUS_DEFAULT_4
1721 default "8" if NR_CPUS_DEFAULT_8
1722 default "16" if NR_CPUS_DEFAULT_16
1723 default "32" if NR_CPUS_DEFAULT_32
1724 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1725 help
1726 This allows you to specify the maximum number of CPUs which this
1727 kernel will support. The maximum supported value is 32 for 32-bit
1728 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1729 sense is 1 for Qemu (useful only for kernel debugging purposes)
1730 and 2 for all others.
1da177e4
LT
1731
1732 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1733 approximately eight kilobytes to the kernel image. For best
1734 performance should round up your number of processors to the next
1735 power of two.
1da177e4 1736
1723b4a3
AN
1737#
1738# Timer Interrupt Frequency Configuration
1739#
1740
1741choice
1742 prompt "Timer frequency"
1743 default HZ_250
1744 help
1745 Allows the configuration of the timer frequency.
1746
1747 config HZ_48
1748 bool "48 HZ" if SYS_SUPPORTS_48HZ
1749
1750 config HZ_100
1751 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1752
1753 config HZ_128
1754 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1755
1756 config HZ_250
1757 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1758
1759 config HZ_256
1760 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1761
1762 config HZ_1000
1763 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1764
1765 config HZ_1024
1766 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1767
1768endchoice
1769
1770config SYS_SUPPORTS_48HZ
1771 bool
1772
1773config SYS_SUPPORTS_100HZ
1774 bool
1775
1776config SYS_SUPPORTS_128HZ
1777 bool
1778
1779config SYS_SUPPORTS_250HZ
1780 bool
1781
1782config SYS_SUPPORTS_256HZ
1783 bool
1784
1785config SYS_SUPPORTS_1000HZ
1786 bool
1787
1788config SYS_SUPPORTS_1024HZ
1789 bool
1790
1791config SYS_SUPPORTS_ARBIT_HZ
1792 bool
1793 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1794 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1795 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1796 !SYS_SUPPORTS_1024HZ
1797
1798config HZ
1799 int
1800 default 48 if HZ_48
1801 default 100 if HZ_100
1802 default 128 if HZ_128
1803 default 250 if HZ_250
1804 default 256 if HZ_256
1805 default 1000 if HZ_1000
1806 default 1024 if HZ_1024
1807
e80de850 1808source "kernel/Kconfig.preempt"
1da177e4 1809
1da177e4
LT
1810config MIPS_INSANE_LARGE
1811 bool "Support for large 64-bit configurations"
875d43e7 1812 depends on CPU_R10000 && 64BIT
1da177e4
LT
1813 help
1814 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1815 previous 64-bit processors which only supported 40 bit / 1TB. If you
1816 need processes of more than 1TB virtual address space, say Y here.
1817 This will result in additional memory usage, so it is not
1818 recommended for normal users.
1819
ea6e942b
AN
1820config KEXEC
1821 bool "Kexec system call (EXPERIMENTAL)"
1822 depends on EXPERIMENTAL
1823 help
1824 kexec is a system call that implements the ability to shutdown your
1825 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 1826 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
1827 you can start any kernel with it, not just Linux.
1828
01dd2fbf 1829 The name comes from the similarity to the exec system call.
ea6e942b
AN
1830
1831 It is an ongoing process to be certain the hardware in a machine
1832 is properly shutdown, so do not be surprised if this code does not
1833 initially work for you. It may help to enable device hotplugging
1834 support. As of this writing the exact hardware interface is
1835 strongly in flux, so no good recommendation can be made.
1836
1837config SECCOMP
1838 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 1839 depends on PROC_FS
ea6e942b
AN
1840 default y
1841 help
1842 This kernel feature is useful for number crunching applications
1843 that may need to compute untrusted bytecode during their
1844 execution. By using pipes or other transports made available to
1845 the process as file descriptors supporting the read/write
1846 syscalls, it's possible to isolate those applications in
1847 their own address space using seccomp. Once seccomp is
1848 enabled via /proc/<pid>/seccomp, it cannot be disabled
1849 and the task is only allowed to execute a few safe syscalls
1850 defined by each seccomp mode.
1851
1852 If unsure, say Y. Only embedded should say N here.
1853
5e83d430
RB
1854endmenu
1855
1da177e4
LT
1856config RWSEM_GENERIC_SPINLOCK
1857 bool
1858 default y
1859
1df0f0ff
AN
1860config LOCKDEP_SUPPORT
1861 bool
1862 default y
1863
1864config STACKTRACE_SUPPORT
1865 bool
1866 default y
1867
b6c3539b
RB
1868source "init/Kconfig"
1869
1da177e4
LT
1870menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1871
5e83d430
RB
1872config HW_HAS_EISA
1873 bool
1da177e4
LT
1874config HW_HAS_PCI
1875 bool
1876
1877config PCI
1878 bool "Support for PCI controller"
1879 depends on HW_HAS_PCI
abb4ae46 1880 select PCI_DOMAINS
1da177e4
LT
1881 help
1882 Find out whether you have a PCI motherboard. PCI is the name of a
1883 bus system, i.e. the way the CPU talks to the other stuff inside
1884 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1885 say Y, otherwise N.
1886
1887 The PCI-HOWTO, available from
1888 <http://www.tldp.org/docs.html#howto>, contains valuable
1889 information about which PCI hardware does work under Linux and which
1890 doesn't.
1891
1892config PCI_DOMAINS
1893 bool
1da177e4
LT
1894
1895source "drivers/pci/Kconfig"
1896
1897#
1898# ISA support is now enabled via select. Too many systems still have the one
1899# or other ISA chip on the board that users don't know about so don't expect
1900# users to choose the right thing ...
1901#
1902config ISA
1903 bool
1904
1905config EISA
1906 bool "EISA support"
5e83d430 1907 depends on HW_HAS_EISA
1da177e4 1908 select ISA
aa414dff 1909 select GENERIC_ISA_DMA
1da177e4
LT
1910 ---help---
1911 The Extended Industry Standard Architecture (EISA) bus was
1912 developed as an open alternative to the IBM MicroChannel bus.
1913
1914 The EISA bus provided some of the features of the IBM MicroChannel
1915 bus while maintaining backward compatibility with cards made for
1916 the older ISA bus. The EISA bus saw limited use between 1988 and
1917 1995 when it was made obsolete by the PCI bus.
1918
1919 Say Y here if you are building a kernel for an EISA-based machine.
1920
1921 Otherwise, say N.
1922
1923source "drivers/eisa/Kconfig"
1924
1925config TC
1926 bool "TURBOchannel support"
1927 depends on MACH_DECSTATION
1928 help
1929 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1930 processors. Documentation on writing device drivers for TurboChannel
1931 is available at:
1932 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1933
1934#config ACCESSBUS
1935# bool "Access.Bus support"
1936# depends on TC
1937
1938config MMU
1939 bool
1940 default y
1941
d865bea4
RB
1942config I8253
1943 bool
1944
de61b542 1945config PCSPEAKER
e5c6c8e4
MN
1946 bool
1947
1da177e4
LT
1948source "drivers/pcmcia/Kconfig"
1949
1950source "drivers/pci/hotplug/Kconfig"
1951
1952endmenu
1953
1954menu "Executable file formats"
1955
1956source "fs/Kconfig.binfmt"
1957
1958config TRAD_SIGNALS
1959 bool
1da177e4 1960
1da177e4
LT
1961config BINFMT_IRIX
1962 bool "Include IRIX binary compatibility"
5e83d430 1963 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1da177e4
LT
1964
1965config MIPS32_COMPAT
1966 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 1967 depends on 64BIT
1da177e4
LT
1968 help
1969 Select this option if you want Linux/MIPS 32-bit binary
1970 compatibility. Since all software available for Linux/MIPS is
1971 currently 32-bit you should say Y here.
1972
1973config COMPAT
1974 bool
1975 depends on MIPS32_COMPAT
1976 default y
1977
05e43966
AN
1978config SYSVIPC_COMPAT
1979 bool
1980 depends on COMPAT && SYSVIPC
1981 default y
1982
1da177e4
LT
1983config MIPS32_O32
1984 bool "Kernel support for o32 binaries"
1985 depends on MIPS32_COMPAT
1986 help
1987 Select this option if you want to run o32 binaries. These are pure
1988 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1989 existing binaries are in this format.
1990
1991 If unsure, say Y.
1992
1993config MIPS32_N32
1994 bool "Kernel support for n32 binaries"
1995 depends on MIPS32_COMPAT
1996 help
1997 Select this option if you want to run n32 binaries. These are
1998 64-bit binaries using 32-bit quantities for addressing and certain
1999 data that would normally be 64-bit. They are used in special
2000 cases.
2001
2002 If unsure, say N.
2003
2004config BINFMT_ELF32
2005 bool
2006 default y if MIPS32_O32 || MIPS32_N32
2007
2116245e
RB
2008endmenu
2009
2010menu "Power management options"
2011
2012source "kernel/power/Kconfig"
952fa954 2013
1da177e4
LT
2014endmenu
2015
d5950b43
SR
2016source "net/Kconfig"
2017
1da177e4
LT
2018source "drivers/Kconfig"
2019
2020source "fs/Kconfig"
2021
09cadedb 2022source "kernel/Kconfig.instrumentation"
5e83d430 2023
1da177e4
LT
2024source "arch/mips/Kconfig.debug"
2025
2026source "security/Kconfig"
2027
2028source "crypto/Kconfig"
2029
2030source "lib/Kconfig"