[MIPS] mtx-1: Enable -Werror.
[GitHub/mt8127/android_kernel_alcatel_ttab.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
217dd11e
RB
736config CEVT_BCM1480
737 bool
738
1097c6ac
YY
739config CEVT_GT641XX
740 bool
741
42f77542
RB
742config CEVT_R4K
743 bool
744
217dd11e
RB
745config CEVT_SB1250
746 bool
747
229f773e
AN
748config CEVT_TXX9
749 bool
750
217dd11e
RB
751config CSRC_BCM1480
752 bool
753
754config CSRC_SB1250
755 bool
756
df78b5c8
AJ
757config CFE
758 bool
759
4ce588cd 760config DMA_COHERENT
1da177e4
LT
761 bool
762
4ce588cd 763config DMA_IP27
1da177e4
LT
764 bool
765
4ce588cd
RB
766config DMA_IP32
767 bool
768 select DMA_NEED_PCI_MAP_STATE
769
770config DMA_NONCOHERENT
771 bool
772 select DMA_NEED_PCI_MAP_STATE
773
774config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
775 bool
776
777config EARLY_PRINTK
36a88530
RB
778 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
779 depends on SYS_HAS_EARLY_PRINTK
780 default y
781 help
782 This option enables special console drivers which allow the kernel
783 to print messages very early in the bootup process.
784
785 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
786 early before the console code is initialized. For normal operation,
787 it is not recommended because it looks ugly on some machines and
788 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
789 unless you want to debug such a crash.
790
791config SYS_HAS_EARLY_PRINTK
1da177e4 792 bool
1da177e4 793
dbb74540
RB
794config HOTPLUG_CPU
795 bool
796 default n
797
1da177e4
LT
798config I8259
799 bool
1da177e4 800
1da177e4
LT
801config MIPS_BONITO64
802 bool
1da177e4
LT
803
804config MIPS_MSC
805 bool
1da177e4 806
1f21d2bd
BM
807config MIPS_NILE4
808 bool
809
1da177e4
LT
810config MIPS_DISABLE_OBSOLETE_IDE
811 bool
812
d388d685
MR
813config NO_IOPORT
814 def_bool n
815
8313da30
RB
816config GENERIC_ISA_DMA
817 bool
818 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
819
aa414dff
RB
820config GENERIC_ISA_DMA_SUPPORT_BROKEN
821 bool
8313da30 822 select GENERIC_ISA_DMA
aa414dff 823
09663335
YY
824config GENERIC_GPIO
825 bool
826
5e83d430 827#
3cb2fccc 828# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
829# answer,so we try hard to limit the available choices. Also the use of a
830# choice statement should be more obvious to the user.
831#
832choice
833 prompt "Endianess selection"
1da177e4
LT
834 help
835 Some MIPS machines can be configured for either little or big endian
5e83d430 836 byte order. These modes require different kernels and a different
3cb2fccc 837 Linux distribution. In general there is one preferred byteorder for a
5e83d430 838 particular system but some systems are just as commonly used in the
3dde6ad8 839 one or the other endianness.
5e83d430
RB
840
841config CPU_BIG_ENDIAN
842 bool "Big endian"
843 depends on SYS_SUPPORTS_BIG_ENDIAN
844
845config CPU_LITTLE_ENDIAN
846 bool "Little endian"
847 depends on SYS_SUPPORTS_LITTLE_ENDIAN
848 help
849
850endchoice
851
2116245e
RB
852config SYS_SUPPORTS_APM_EMULATION
853 bool
854
5e83d430
RB
855config SYS_SUPPORTS_BIG_ENDIAN
856 bool
857
858config SYS_SUPPORTS_LITTLE_ENDIAN
859 bool
1da177e4
LT
860
861config IRQ_CPU
862 bool
863
864config IRQ_CPU_RM7K
865 bool
866
5e83d430
RB
867config IRQ_CPU_RM9K
868 bool
869
9267a30d
MSJ
870config IRQ_MSP_SLP
871 bool
872
873config IRQ_MSP_CIC
874 bool
875
8420fd00
AN
876config IRQ_TXX9
877 bool
878
d5ab1a69
YY
879config IRQ_GT641XX
880 bool
881
1da177e4
LT
882config MIPS_BOARDS_GEN
883 bool
1da177e4 884
252161ec 885config PCI_GT64XXX_PCI0
1da177e4 886 bool
1da177e4 887
9267a30d
MSJ
888config NO_EXCEPT_FILL
889 bool
890
1da177e4
LT
891config MIPS_TX3927
892 bool
1da177e4 893 select HAS_TXX9_SERIAL
1da177e4 894
663c3d90 895config MIPS_RM9122
896 bool
897 select SERIAL_RM9000
663c3d90 898
bdf21b18
PP
899config PNX8550
900 bool
901 select SOC_PNX8550
902
903config SOC_PNX8550
904 bool
bdf21b18
PP
905 select DMA_NONCOHERENT
906 select HW_HAS_PCI
b8c2a77c 907 select SYS_HAS_CPU_MIPS32_R1
36a88530 908 select SYS_HAS_EARLY_PRINTK
7cf8053b 909 select SYS_SUPPORTS_32BIT_KERNEL
e77c232c 910 select GENERIC_HARDIRQS_NO__DO_IRQ
cc801077 911 select SYS_SUPPORTS_KGDB
4ead1681 912 select GENERIC_GPIO
bdf21b18 913
1da177e4
LT
914config SWAP_IO_SPACE
915 bool
916
355c471f 917config EMMA2RH
918 bool
919 depends on MARKEINS
920 default y
921
663c3d90 922config SERIAL_RM9000
923 bool
924
5e83d430
RB
925config ARC32
926 bool
927
1da177e4
LT
928config BOOT_ELF32
929 bool
1da177e4
LT
930
931config MIPS_L1_CACHE_SHIFT
932 int
06cf5583
TB
933 default "4" if MACH_DECSTATION
934 default "7" if SGI_IP27 || SNI_RM
9267a30d 935 default "4" if PMC_MSP4200_EVAL
1da177e4
LT
936 default "5"
937
1da177e4
LT
938config HAVE_STD_PC_SERIAL_PORT
939 bool
940
1da177e4
LT
941config ARC_CONSOLE
942 bool "ARC console support"
36a88530 943 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
944
945config ARC_MEMORY
946 bool
14b36af4 947 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
948 default y
949
950config ARC_PROMLIB
951 bool
14b36af4 952 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1da177e4
LT
953 default y
954
955config ARC64
956 bool
1da177e4
LT
957
958config BOOT_ELF64
959 bool
1da177e4 960
1da177e4
LT
961menu "CPU selection"
962
7bcf7717
RB
963source "kernel/time/Kconfig"
964
1da177e4
LT
965choice
966 prompt "CPU type"
967 default CPU_R4X00
968
2a21c730
FZ
969config CPU_LOONGSON2
970 bool "Loongson 2"
971 depends on SYS_HAS_CPU_LOONGSON2
972 select CPU_SUPPORTS_32BIT_KERNEL
973 select CPU_SUPPORTS_64BIT_KERNEL
974 select CPU_SUPPORTS_HIGHMEM
975 help
976 The Loongson 2E processor implements the MIPS III instruction set
977 with many extensions.
978
6e760c8d
RB
979config CPU_MIPS32_R1
980 bool "MIPS32 Release 1"
7cf8053b 981 depends on SYS_HAS_CPU_MIPS32_R1
f7062ddb 982 select CPU_HAS_LLSC
6e760c8d 983 select CPU_HAS_PREFETCH
797798c1 984 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 985 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 986 help
5e83d430 987 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
988 MIPS32 architecture. Most modern embedded systems with a 32-bit
989 MIPS processor are based on a MIPS32 processor. If you know the
990 specific type of processor in your system, choose those that one
991 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
992 Release 2 of the MIPS32 architecture is available since several
993 years so chances are you even have a MIPS32 Release 2 processor
994 in which case you should choose CPU_MIPS32_R2 instead for better
995 performance.
996
997config CPU_MIPS32_R2
998 bool "MIPS32 Release 2"
7cf8053b 999 depends on SYS_HAS_CPU_MIPS32_R2
f7062ddb 1000 select CPU_HAS_LLSC
1e5f1caa 1001 select CPU_HAS_PREFETCH
797798c1 1002 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 1003 select CPU_SUPPORTS_HIGHMEM
6e760c8d 1004 help
5e83d430 1005 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
1006 MIPS32 architecture. Most modern embedded systems with a 32-bit
1007 MIPS processor are based on a MIPS32 processor. If you know the
1008 specific type of processor in your system, choose those that one
1009 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1010
1011config CPU_MIPS64_R1
1012 bool "MIPS64 Release 1"
7cf8053b 1013 depends on SYS_HAS_CPU_MIPS64_R1
f7062ddb 1014 select CPU_HAS_LLSC
797798c1 1015 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1016 select CPU_SUPPORTS_32BIT_KERNEL
1017 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1018 select CPU_SUPPORTS_HIGHMEM
6e760c8d
RB
1019 help
1020 Choose this option to build a kernel for release 1 or later of the
1021 MIPS64 architecture. Many modern embedded systems with a 64-bit
1022 MIPS processor are based on a MIPS64 processor. If you know the
1023 specific type of processor in your system, choose those that one
1024 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1025 Release 2 of the MIPS64 architecture is available since several
1026 years so chances are you even have a MIPS64 Release 2 processor
1027 in which case you should choose CPU_MIPS64_R2 instead for better
1028 performance.
1029
1030config CPU_MIPS64_R2
1031 bool "MIPS64 Release 2"
7cf8053b 1032 depends on SYS_HAS_CPU_MIPS64_R2
f7062ddb 1033 select CPU_HAS_LLSC
797798c1 1034 select CPU_HAS_PREFETCH
1e5f1caa
RB
1035 select CPU_SUPPORTS_32BIT_KERNEL
1036 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1037 select CPU_SUPPORTS_HIGHMEM
1e5f1caa
RB
1038 help
1039 Choose this option to build a kernel for release 2 or later of the
1040 MIPS64 architecture. Many modern embedded systems with a 64-bit
1041 MIPS processor are based on a MIPS64 processor. If you know the
1042 specific type of processor in your system, choose those that one
1043 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1044
1045config CPU_R3000
1046 bool "R3000"
7cf8053b 1047 depends on SYS_HAS_CPU_R3000
f7062ddb 1048 select CPU_HAS_WB
ed5ba2fb 1049 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1050 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1051 help
1052 Please make sure to pick the right CPU type. Linux/MIPS is not
1053 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1054 *not* work on R4000 machines and vice versa. However, since most
1055 of the supported machines have an R4000 (or similar) CPU, R4x00
1056 might be a safe bet. If the resulting kernel does not work,
1057 try to recompile with R3000.
1058
1059config CPU_TX39XX
1060 bool "R39XX"
7cf8053b 1061 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1062 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1063
1064config CPU_VR41XX
1065 bool "R41xx"
7cf8053b 1066 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1069 help
5e83d430 1070 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1071 Only choose this option if you have one of these processors as a
1072 kernel built with this option will not run on any other type of
1073 processor or vice versa.
1074
1075config CPU_R4300
1076 bool "R4300"
7cf8053b 1077 depends on SYS_HAS_CPU_R4300
f7062ddb 1078 select CPU_HAS_LLSC
ed5ba2fb
YY
1079 select CPU_SUPPORTS_32BIT_KERNEL
1080 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1081 help
1082 MIPS Technologies R4300-series processors.
1083
1084config CPU_R4X00
1085 bool "R4x00"
7cf8053b 1086 depends on SYS_HAS_CPU_R4X00
f7062ddb 1087 select CPU_HAS_LLSC
ed5ba2fb
YY
1088 select CPU_SUPPORTS_32BIT_KERNEL
1089 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1090 help
1091 MIPS Technologies R4000-series processors other than 4300, including
1092 the R4000, R4400, R4600, and 4700.
1093
1094config CPU_TX49XX
1095 bool "R49XX"
7cf8053b 1096 depends on SYS_HAS_CPU_TX49XX
f7062ddb 1097 select CPU_HAS_LLSC
de862b48 1098 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1099 select CPU_SUPPORTS_32BIT_KERNEL
1100 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1101
1102config CPU_R5000
1103 bool "R5000"
7cf8053b 1104 depends on SYS_HAS_CPU_R5000
f7062ddb 1105 select CPU_HAS_LLSC
ed5ba2fb
YY
1106 select CPU_SUPPORTS_32BIT_KERNEL
1107 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1108 help
1109 MIPS Technologies R5000-series processors other than the Nevada.
1110
1111config CPU_R5432
1112 bool "R5432"
7cf8053b 1113 depends on SYS_HAS_CPU_R5432
f7062ddb 1114 select CPU_HAS_LLSC
5e83d430
RB
1115 select CPU_SUPPORTS_32BIT_KERNEL
1116 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1117
1118config CPU_R6000
1119 bool "R6000"
ed5ba2fb 1120 depends on EXPERIMENTAL
f7062ddb 1121 select CPU_HAS_LLSC
7cf8053b 1122 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1123 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1124 help
1125 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1126 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1127
1128config CPU_NEVADA
1129 bool "RM52xx"
7cf8053b 1130 depends on SYS_HAS_CPU_NEVADA
f7062ddb 1131 select CPU_HAS_LLSC
ed5ba2fb
YY
1132 select CPU_SUPPORTS_32BIT_KERNEL
1133 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1134 help
1135 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1136
1137config CPU_R8000
1138 bool "R8000"
ed5ba2fb 1139 depends on EXPERIMENTAL
7cf8053b 1140 depends on SYS_HAS_CPU_R8000
f7062ddb 1141 select CPU_HAS_LLSC
5e83d430 1142 select CPU_HAS_PREFETCH
ed5ba2fb 1143 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1144 help
1145 MIPS Technologies R8000 processors. Note these processors are
1146 uncommon and the support for them is incomplete.
1147
1148config CPU_R10000
1149 bool "R10000"
7cf8053b 1150 depends on SYS_HAS_CPU_R10000
f7062ddb 1151 select CPU_HAS_LLSC
5e83d430 1152 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1153 select CPU_SUPPORTS_32BIT_KERNEL
1154 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1155 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1156 help
1157 MIPS Technologies R10000-series processors.
1158
1159config CPU_RM7000
1160 bool "RM7000"
7cf8053b 1161 depends on SYS_HAS_CPU_RM7000
f7062ddb 1162 select CPU_HAS_LLSC
5e83d430 1163 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1164 select CPU_SUPPORTS_32BIT_KERNEL
1165 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1166 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1167
1168config CPU_RM9000
1169 bool "RM9000"
7cf8053b 1170 depends on SYS_HAS_CPU_RM9000
f7062ddb 1171 select CPU_HAS_LLSC
5e83d430 1172 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1173 select CPU_SUPPORTS_32BIT_KERNEL
1174 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1175 select CPU_SUPPORTS_HIGHMEM
0004a9df 1176 select WEAK_ORDERING
1da177e4
LT
1177
1178config CPU_SB1
1179 bool "SB1"
7cf8053b 1180 depends on SYS_HAS_CPU_SB1
f7062ddb 1181 select CPU_HAS_LLSC
ed5ba2fb
YY
1182 select CPU_SUPPORTS_32BIT_KERNEL
1183 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1184 select CPU_SUPPORTS_HIGHMEM
0004a9df 1185 select WEAK_ORDERING
1da177e4
LT
1186
1187endchoice
1188
2a21c730
FZ
1189config SYS_HAS_CPU_LOONGSON2
1190 bool
1191
7cf8053b
RB
1192config SYS_HAS_CPU_MIPS32_R1
1193 bool
1194
1195config SYS_HAS_CPU_MIPS32_R2
1196 bool
1197
1198config SYS_HAS_CPU_MIPS64_R1
1199 bool
1200
1201config SYS_HAS_CPU_MIPS64_R2
1202 bool
1203
1204config SYS_HAS_CPU_R3000
1205 bool
1206
1207config SYS_HAS_CPU_TX39XX
1208 bool
1209
1210config SYS_HAS_CPU_VR41XX
1211 bool
1212
1213config SYS_HAS_CPU_R4300
1214 bool
1215
1216config SYS_HAS_CPU_R4X00
1217 bool
1218
1219config SYS_HAS_CPU_TX49XX
1220 bool
1221
1222config SYS_HAS_CPU_R5000
1223 bool
1224
1225config SYS_HAS_CPU_R5432
1226 bool
1227
1228config SYS_HAS_CPU_R6000
1229 bool
1230
1231config SYS_HAS_CPU_NEVADA
1232 bool
1233
1234config SYS_HAS_CPU_R8000
1235 bool
1236
1237config SYS_HAS_CPU_R10000
1238 bool
1239
1240config SYS_HAS_CPU_RM7000
1241 bool
1242
1243config SYS_HAS_CPU_RM9000
1244 bool
1245
1246config SYS_HAS_CPU_SB1
1247 bool
1248
17099b11
RB
1249#
1250# CPU may reorder R->R, R->W, W->R, W->W
1251# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1252#
0004a9df
RB
1253config WEAK_ORDERING
1254 bool
17099b11
RB
1255
1256#
1257# CPU may reorder reads and writes beyond LL/SC
1258# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1259#
1260config WEAK_REORDERING_BEYOND_LLSC
1261 bool
5e83d430
RB
1262endmenu
1263
1264#
c09b47d8 1265# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1266#
1267config CPU_MIPS32
1268 bool
1269 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1270
1271config CPU_MIPS64
1272 bool
1273 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1274
1275#
c09b47d8 1276# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1277#
1278config CPU_MIPSR1
1279 bool
1280 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1281
1282config CPU_MIPSR2
1283 bool
1284 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1285
1286config SYS_SUPPORTS_32BIT_KERNEL
1287 bool
1288config SYS_SUPPORTS_64BIT_KERNEL
1289 bool
1290config CPU_SUPPORTS_32BIT_KERNEL
1291 bool
1292config CPU_SUPPORTS_64BIT_KERNEL
1293 bool
1294
1295menu "Kernel type"
1296
1297choice
1298
1299 prompt "Kernel code model"
1300 help
1301 You should only select this option if you have a workload that
1302 actually benefits from 64-bit processing or if your machine has
1303 large memory. You will only be presented a single option in this
1304 menu if your system does not support both 32-bit and 64-bit kernels.
1305
1306config 32BIT
1307 bool "32-bit kernel"
1308 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1309 select TRAD_SIGNALS
1310 help
1311 Select this option if you want to build a 32-bit kernel.
1312config 64BIT
1313 bool "64-bit kernel"
1314 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1315 help
1316 Select this option if you want to build a 64-bit kernel.
1317
1318endchoice
1319
1da177e4
LT
1320choice
1321 prompt "Kernel page size"
1322 default PAGE_SIZE_4KB
1323
1324config PAGE_SIZE_4KB
1325 bool "4kB"
1326 help
1327 This option select the standard 4kB Linux page size. On some
1328 R3000-family processors this is the only available page size. Using
1329 4kB page size will minimize memory consumption and is therefore
1330 recommended for low memory systems.
1331
1332config PAGE_SIZE_8KB
1333 bool "8kB"
1334 depends on EXPERIMENTAL && CPU_R8000
1335 help
1336 Using 8kB page size will result in higher performance kernel at
1337 the price of higher memory consumption. This option is available
1338 only on the R8000 processor. Not that at the time of this writing
1339 this option is still high experimental; there are also issues with
1340 compatibility of user applications.
1341
1342config PAGE_SIZE_16KB
1343 bool "16kB"
714bfad6 1344 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1345 help
1346 Using 16kB page size will result in higher performance kernel at
1347 the price of higher memory consumption. This option is available on
714bfad6
RB
1348 all non-R3000 family processors. Note that you will need a suitable
1349 Linux distribution to support this.
1da177e4
LT
1350
1351config PAGE_SIZE_64KB
1352 bool "64kB"
1353 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1354 help
1355 Using 64kB page size will result in higher performance kernel at
1356 the price of higher memory consumption. This option is available on
1357 all non-R3000 family processor. Not that at the time of this
714bfad6 1358 writing this option is still high experimental.
1da177e4
LT
1359
1360endchoice
1361
1362config BOARD_SCACHE
1363 bool
1364
1365config IP22_CPU_SCACHE
1366 bool
1367 select BOARD_SCACHE
1368
9318c51a
CD
1369#
1370# Support for a MIPS32 / MIPS64 style S-caches
1371#
1372config MIPS_CPU_SCACHE
1373 bool
1374 select BOARD_SCACHE
1375
1da177e4
LT
1376config R5000_CPU_SCACHE
1377 bool
1378 select BOARD_SCACHE
1379
1380config RM7000_CPU_SCACHE
1381 bool
1382 select BOARD_SCACHE
1383
1384config SIBYTE_DMA_PAGEOPS
1385 bool "Use DMA to clear/copy pages"
1386 depends on CPU_SB1
1387 help
1388 Instead of using the CPU to zero and copy pages, use a Data Mover
1389 channel. These DMA channels are otherwise unused by the standard
1390 SiByte Linux port. Seems to give a small performance benefit.
1391
1392config CPU_HAS_PREFETCH
c8094b53 1393 bool
1da177e4 1394
340ee4b9
RB
1395choice
1396 prompt "MIPS MT options"
f41ae0b2
RB
1397
1398config MIPS_MT_DISABLED
1399 bool "Disable multithreading support."
1400 help
1401 Use this option if your workload can't take advantage of
1402 MIPS hardware multithreading support. On systems that don't have
1403 the option of an MT-enabled processor this option will be the only
1404 option in this menu.
340ee4b9 1405
59d6ab86
RB
1406config MIPS_MT_SMP
1407 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1408 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1409 select CPU_MIPSR2_IRQ_VI
d725cf38 1410 select CPU_MIPSR2_IRQ_EI
f7062ddb 1411 select CPU_MIPSR2_SRS
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
RB
1428 select CPU_MIPSR2_SRS
1429 select MIPS_MT
130e2fb7 1430 select NR_CPUS_DEFAULT_8
340ee4b9 1431 select SMP
73b76c78 1432 select SYS_SUPPORTS_SMP
f41ae0b2 1433 help
59d6ab86
RB
1434 This is a kernel model which is known a SMTC or lately has been
1435 marketesed into SMVP.
340ee4b9 1436
340ee4b9
RB
1437endchoice
1438
f41ae0b2
RB
1439config MIPS_MT
1440 bool
1441
1442config SYS_SUPPORTS_MULTITHREADING
1443 bool
1444
f088fc84
RB
1445config MIPS_MT_FPAFF
1446 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1447 default y
07cc0c9e
RB
1448 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1449
1450config MIPS_VPE_LOADER
1451 bool "VPE loader support."
1452 depends on SYS_SUPPORTS_MULTITHREADING
1453 select CPU_MIPSR2_IRQ_VI
1454 select CPU_MIPSR2_IRQ_EI
1455 select CPU_MIPSR2_SRS
1456 select MIPS_MT
1457 help
1458 Includes a loader for loading an elf relocatable object
1459 onto another VPE and running it.
f088fc84 1460
ac8be955
RB
1461config MIPS_MT_SMTC_INSTANT_REPLAY
1462 bool "Low-latency Dispatch of Deferred SMTC IPIs"
619af723 1463 depends on MIPS_MT_SMTC && !PREEMPT
ac8be955
RB
1464 default y
1465 help
1466 SMTC pseudo-interrupts between TCs are deferred and queued
1467 if the target TC is interrupt-inhibited (IXMT). In the first
1468 SMTC prototypes, these queued IPIs were serviced on return
1469 to user mode, or on entry into the kernel idle loop. The
1470 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1471 processing, which adds runtime overhead (hence the option to turn
1472 it off), but ensures that IPIs are handled promptly even under
1473 heavy I/O interrupt load.
1474
0db34215
KK
1475config MIPS_MT_SMTC_IM_BACKSTOP
1476 bool "Use per-TC register bits as backstop for inhibited IM bits"
1477 depends on MIPS_MT_SMTC
1478 default y
1479 help
1480 To support multiple TC microthreads acting as "CPUs" within
1481 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1482 during interrupt handling. To support legacy drivers and interrupt
1483 controller management code, SMTC has a "backstop" to track and
1484 if necessary restore the interrupt mask. This has some performance
1485 impact on interrupt service overhead. Disable it only if you know
1486 what you are doing.
1487
f571eff0
KK
1488config MIPS_MT_SMTC_IRQAFF
1489 bool "Support IRQ affinity API"
1490 depends on MIPS_MT_SMTC
1491 default n
1492 help
1493 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1494 for SMTC Linux kernel. Requires platform support, of which
1495 an example can be found in the MIPS kernel i8259 and Malta
1496 platform code. It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
1497 be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
1498 interrupt dispatch, and should be used only if you know what
1499 you are doing.
1500
e01402b1
RB
1501config MIPS_VPE_LOADER_TOM
1502 bool "Load VPE program into memory hidden from linux"
1503 depends on MIPS_VPE_LOADER
1504 default y
1505 help
1506 The loader can use memory that is present but has been hidden from
1507 Linux using the kernel command line option "mem=xxMB". It's up to
1508 you to ensure the amount you put in the option and the space your
1509 program requires is less or equal to the amount physically present.
1510
1511# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1512config MIPS_VPE_APSP_API
5e83d430
RB
1513 bool "Enable support for AP/SP API (RTLX)"
1514 depends on MIPS_VPE_LOADER
1515 help
e01402b1 1516
2600990e
RB
1517config MIPS_APSP_KSPD
1518 bool "Enable KSPD"
1519 depends on MIPS_VPE_APSP_API
1520 default y
1521 help
1522 KSPD is a kernel daemon that accepts syscall requests from the SP
1523 side, actions them and returns the results. It also handles the
1524 "exit" syscall notifying other kernel modules the SP program is
1525 exiting. You probably want to say yes here.
1526
1da177e4
LT
1527config SB1_PASS_1_WORKAROUNDS
1528 bool
1529 depends on CPU_SB1_PASS_1
1530 default y
1531
1532config SB1_PASS_2_WORKAROUNDS
1533 bool
1534 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1535 default y
1536
1537config SB1_PASS_2_1_WORKAROUNDS
1538 bool
1539 depends on CPU_SB1 && CPU_SB1_PASS_2
1540 default y
1541
1542config 64BIT_PHYS_ADDR
d806cb2b 1543 bool
1da177e4 1544
1da177e4 1545config CPU_HAS_LLSC
f7062ddb 1546 bool
1da177e4 1547
9693a853
FBH
1548config CPU_HAS_SMARTMIPS
1549 depends on SYS_SUPPORTS_SMARTMIPS
1550 bool "Support for the SmartMIPS ASE"
1551 help
1552 SmartMIPS is a extension of the MIPS32 architecture aimed at
1553 increased security at both hardware and software level for
1554 smartcards. Enabling this option will allow proper use of the
1555 SmartMIPS instructions by Linux applications. However a kernel with
1556 this option will not work on a MIPS core without SmartMIPS core. If
1557 you don't know you probably don't have SmartMIPS and should say N
1558 here.
1559
1da177e4 1560config CPU_HAS_WB
f7062ddb 1561 bool
e01402b1 1562
2a21c730
FZ
1563config 64BIT_CONTEXT
1564 bool "Save 64bit integer registers"
1565 depends on 32BIT && CPU_LOONGSON2
1566 help
1567 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1568 registers can still be accessed as 64bit, mainly for multimedia
1569 instructions. We must have all 64bit save/restored to make sure
1570 those instructions to get correct result.
1571
f41ae0b2
RB
1572#
1573# Vectored interrupt mode is an R2 feature
1574#
e01402b1 1575config CPU_MIPSR2_IRQ_VI
f41ae0b2 1576 bool
e01402b1 1577
f41ae0b2
RB
1578#
1579# Extended interrupt mode is an R2 feature
1580#
e01402b1 1581config CPU_MIPSR2_IRQ_EI
f41ae0b2 1582 bool
e01402b1 1583
f41ae0b2
RB
1584#
1585# Shadow registers are an R2 feature
1586#
e01402b1 1587config CPU_MIPSR2_SRS
f41ae0b2 1588 bool
e01402b1 1589
1da177e4
LT
1590config CPU_HAS_SYNC
1591 bool
1592 depends on !CPU_R3000
1593 default y
1594
ea580401
RB
1595config GENERIC_CLOCKEVENTS_BROADCAST
1596 bool
1597
797798c1
RB
1598#
1599# Use the generic interrupt handling code in kernel/irq/:
1600#
1601config GENERIC_HARDIRQS
1602 bool
1603 default y
1604
1605config GENERIC_IRQ_PROBE
1606 bool
1607 default y
1608
0d7012a9 1609config IRQ_PER_CPU
0d7012a9 1610 bool
0d7012a9 1611
1da177e4
LT
1612#
1613# - Highmem only makes sense for the 32-bit kernel.
1614# - The current highmem code will only work properly on physically indexed
1615# caches such as R3000, SB1, R7000 or those that look like they're virtually
1616# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1617# moment we protect the user and offer the highmem option only on machines
1618# where it's known to be safe. This will not offer highmem on a few systems
1619# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1620# indexed CPUs but we're playing safe.
797798c1
RB
1621# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1622# know they might have memory configurations that could make use of highmem
1623# support.
1da177e4
LT
1624#
1625config HIGHMEM
1626 bool "High Memory Support"
797798c1
RB
1627 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1628
1629config CPU_SUPPORTS_HIGHMEM
1630 bool
1631
1632config SYS_SUPPORTS_HIGHMEM
1633 bool
1da177e4 1634
9693a853
FBH
1635config SYS_SUPPORTS_SMARTMIPS
1636 bool
1637
b4819b59
YY
1638config ARCH_FLATMEM_ENABLE
1639 def_bool y
1640 depends on !NUMA
1641
d8cb4e11
RB
1642config ARCH_DISCONTIGMEM_ENABLE
1643 bool
1644 default y if SGI_IP27
1645 help
3dde6ad8 1646 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1647 for architectures which are either NUMA (Non-Uniform Memory Access)
1648 or have huge holes in the physical address space for other reasons.
1649 See <file:Documentation/vm/numa> for more.
1650
31473747
AN
1651config ARCH_SPARSEMEM_ENABLE
1652 bool
7de58fab 1653 select SPARSEMEM_STATIC
31473747 1654
d8cb4e11
RB
1655config NUMA
1656 bool "NUMA Support"
1657 depends on SYS_SUPPORTS_NUMA
1658 help
1659 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1660 Access). This option improves performance on systems with more
1661 than two nodes; on two node systems it is generally better to
1662 leave it disabled; on single node systems disable this option
1663 disabled.
1664
1665config SYS_SUPPORTS_NUMA
1666 bool
1667
c80d79d7
YG
1668config NODES_SHIFT
1669 int
1670 default "6"
1671 depends on NEED_MULTIPLE_NODES
1672
b4819b59
YY
1673source "mm/Kconfig"
1674
1da177e4
LT
1675config SMP
1676 bool "Multi-Processing support"
e73ea273 1677 depends on SYS_SUPPORTS_SMP
b4b30a5a 1678 select IRQ_PER_CPU
e73ea273 1679 help
1da177e4
LT
1680 This enables support for systems with more than one CPU. If you have
1681 a system with only one CPU, like most personal computers, say N. If
1682 you have a system with more than one CPU, say Y.
1683
1684 If you say N here, the kernel will run on single and multiprocessor
1685 machines, but will use only one CPU of a multiprocessor machine. If
1686 you say Y here, the kernel will run on many, but not all,
1687 singleprocessor machines. On a singleprocessor machine, the kernel
1688 will run faster if you say N here.
1689
1690 People using multiprocessor machines who say Y here should also say
1691 Y to "Enhanced Real Time Clock Support", below.
1692
1693 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1694 available at <http://www.tldp.org/docs.html#howto>.
1695
1696 If you don't know what to do here, say N.
1697
e73ea273
RB
1698config SYS_SUPPORTS_SMP
1699 bool
1700
72ede9b1
AN
1701config NR_CPUS_DEFAULT_1
1702 bool
1703
130e2fb7
RB
1704config NR_CPUS_DEFAULT_2
1705 bool
1706
1707config NR_CPUS_DEFAULT_4
1708 bool
1709
1710config NR_CPUS_DEFAULT_8
1711 bool
1712
1713config NR_CPUS_DEFAULT_16
1714 bool
1715
1716config NR_CPUS_DEFAULT_32
1717 bool
1718
1719config NR_CPUS_DEFAULT_64
1720 bool
1721
1da177e4
LT
1722config NR_CPUS
1723 int "Maximum number of CPUs (2-64)"
72ede9b1 1724 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1725 depends on SMP
72ede9b1 1726 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1727 default "2" if NR_CPUS_DEFAULT_2
1728 default "4" if NR_CPUS_DEFAULT_4
1729 default "8" if NR_CPUS_DEFAULT_8
1730 default "16" if NR_CPUS_DEFAULT_16
1731 default "32" if NR_CPUS_DEFAULT_32
1732 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1733 help
1734 This allows you to specify the maximum number of CPUs which this
1735 kernel will support. The maximum supported value is 32 for 32-bit
1736 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1737 sense is 1 for Qemu (useful only for kernel debugging purposes)
1738 and 2 for all others.
1da177e4
LT
1739
1740 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1741 approximately eight kilobytes to the kernel image. For best
1742 performance should round up your number of processors to the next
1743 power of two.
1da177e4 1744
1723b4a3
AN
1745#
1746# Timer Interrupt Frequency Configuration
1747#
1748
1749choice
1750 prompt "Timer frequency"
1751 default HZ_250
1752 help
1753 Allows the configuration of the timer frequency.
1754
1755 config HZ_48
1756 bool "48 HZ" if SYS_SUPPORTS_48HZ
1757
1758 config HZ_100
1759 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1760
1761 config HZ_128
1762 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1763
1764 config HZ_250
1765 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1766
1767 config HZ_256
1768 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1769
1770 config HZ_1000
1771 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1772
1773 config HZ_1024
1774 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1775
1776endchoice
1777
1778config SYS_SUPPORTS_48HZ
1779 bool
1780
1781config SYS_SUPPORTS_100HZ
1782 bool
1783
1784config SYS_SUPPORTS_128HZ
1785 bool
1786
1787config SYS_SUPPORTS_250HZ
1788 bool
1789
1790config SYS_SUPPORTS_256HZ
1791 bool
1792
1793config SYS_SUPPORTS_1000HZ
1794 bool
1795
1796config SYS_SUPPORTS_1024HZ
1797 bool
1798
1799config SYS_SUPPORTS_ARBIT_HZ
1800 bool
1801 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1802 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1803 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1804 !SYS_SUPPORTS_1024HZ
1805
1806config HZ
1807 int
1808 default 48 if HZ_48
1809 default 100 if HZ_100
1810 default 128 if HZ_128
1811 default 250 if HZ_250
1812 default 256 if HZ_256
1813 default 1000 if HZ_1000
1814 default 1024 if HZ_1024
1815
e80de850 1816source "kernel/Kconfig.preempt"
1da177e4 1817
1da177e4
LT
1818config MIPS_INSANE_LARGE
1819 bool "Support for large 64-bit configurations"
875d43e7 1820 depends on CPU_R10000 && 64BIT
1da177e4
LT
1821 help
1822 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1823 previous 64-bit processors which only supported 40 bit / 1TB. If you
1824 need processes of more than 1TB virtual address space, say Y here.
1825 This will result in additional memory usage, so it is not
1826 recommended for normal users.
1827
ea6e942b
AN
1828config KEXEC
1829 bool "Kexec system call (EXPERIMENTAL)"
1830 depends on EXPERIMENTAL
1831 help
1832 kexec is a system call that implements the ability to shutdown your
1833 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 1834 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
1835 you can start any kernel with it, not just Linux.
1836
01dd2fbf 1837 The name comes from the similarity to the exec system call.
ea6e942b
AN
1838
1839 It is an ongoing process to be certain the hardware in a machine
1840 is properly shutdown, so do not be surprised if this code does not
1841 initially work for you. It may help to enable device hotplugging
1842 support. As of this writing the exact hardware interface is
1843 strongly in flux, so no good recommendation can be made.
1844
1845config SECCOMP
1846 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 1847 depends on PROC_FS
ea6e942b
AN
1848 default y
1849 help
1850 This kernel feature is useful for number crunching applications
1851 that may need to compute untrusted bytecode during their
1852 execution. By using pipes or other transports made available to
1853 the process as file descriptors supporting the read/write
1854 syscalls, it's possible to isolate those applications in
1855 their own address space using seccomp. Once seccomp is
1856 enabled via /proc/<pid>/seccomp, it cannot be disabled
1857 and the task is only allowed to execute a few safe syscalls
1858 defined by each seccomp mode.
1859
1860 If unsure, say Y. Only embedded should say N here.
1861
5e83d430
RB
1862endmenu
1863
1da177e4
LT
1864config RWSEM_GENERIC_SPINLOCK
1865 bool
1866 default y
1867
1df0f0ff
AN
1868config LOCKDEP_SUPPORT
1869 bool
1870 default y
1871
1872config STACKTRACE_SUPPORT
1873 bool
1874 default y
1875
b6c3539b
RB
1876source "init/Kconfig"
1877
1da177e4
LT
1878menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1879
5e83d430
RB
1880config HW_HAS_EISA
1881 bool
1da177e4
LT
1882config HW_HAS_PCI
1883 bool
1884
1885config PCI
1886 bool "Support for PCI controller"
1887 depends on HW_HAS_PCI
abb4ae46 1888 select PCI_DOMAINS
1da177e4
LT
1889 help
1890 Find out whether you have a PCI motherboard. PCI is the name of a
1891 bus system, i.e. the way the CPU talks to the other stuff inside
1892 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1893 say Y, otherwise N.
1894
1895 The PCI-HOWTO, available from
1896 <http://www.tldp.org/docs.html#howto>, contains valuable
1897 information about which PCI hardware does work under Linux and which
1898 doesn't.
1899
1900config PCI_DOMAINS
1901 bool
1da177e4
LT
1902
1903source "drivers/pci/Kconfig"
1904
1905#
1906# ISA support is now enabled via select. Too many systems still have the one
1907# or other ISA chip on the board that users don't know about so don't expect
1908# users to choose the right thing ...
1909#
1910config ISA
1911 bool
1912
1913config EISA
1914 bool "EISA support"
5e83d430 1915 depends on HW_HAS_EISA
1da177e4 1916 select ISA
aa414dff 1917 select GENERIC_ISA_DMA
1da177e4
LT
1918 ---help---
1919 The Extended Industry Standard Architecture (EISA) bus was
1920 developed as an open alternative to the IBM MicroChannel bus.
1921
1922 The EISA bus provided some of the features of the IBM MicroChannel
1923 bus while maintaining backward compatibility with cards made for
1924 the older ISA bus. The EISA bus saw limited use between 1988 and
1925 1995 when it was made obsolete by the PCI bus.
1926
1927 Say Y here if you are building a kernel for an EISA-based machine.
1928
1929 Otherwise, say N.
1930
1931source "drivers/eisa/Kconfig"
1932
1933config TC
1934 bool "TURBOchannel support"
1935 depends on MACH_DECSTATION
1936 help
1937 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1938 processors. Documentation on writing device drivers for TurboChannel
1939 is available at:
1940 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1941
1942#config ACCESSBUS
1943# bool "Access.Bus support"
1944# depends on TC
1945
1946config MMU
1947 bool
1948 default y
1949
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RB
1950config I8253
1951 bool
1952
de61b542 1953config PCSPEAKER
e5c6c8e4
MN
1954 bool
1955
1da177e4
LT
1956source "drivers/pcmcia/Kconfig"
1957
1958source "drivers/pci/hotplug/Kconfig"
1959
1960endmenu
1961
1962menu "Executable file formats"
1963
1964source "fs/Kconfig.binfmt"
1965
1966config TRAD_SIGNALS
1967 bool
1da177e4 1968
1da177e4
LT
1969config BINFMT_IRIX
1970 bool "Include IRIX binary compatibility"
5e83d430 1971 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1da177e4
LT
1972
1973config MIPS32_COMPAT
1974 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 1975 depends on 64BIT
1da177e4
LT
1976 help
1977 Select this option if you want Linux/MIPS 32-bit binary
1978 compatibility. Since all software available for Linux/MIPS is
1979 currently 32-bit you should say Y here.
1980
1981config COMPAT
1982 bool
1983 depends on MIPS32_COMPAT
1984 default y
1985
05e43966
AN
1986config SYSVIPC_COMPAT
1987 bool
1988 depends on COMPAT && SYSVIPC
1989 default y
1990
1da177e4
LT
1991config MIPS32_O32
1992 bool "Kernel support for o32 binaries"
1993 depends on MIPS32_COMPAT
1994 help
1995 Select this option if you want to run o32 binaries. These are pure
1996 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1997 existing binaries are in this format.
1998
1999 If unsure, say Y.
2000
2001config MIPS32_N32
2002 bool "Kernel support for n32 binaries"
2003 depends on MIPS32_COMPAT
2004 help
2005 Select this option if you want to run n32 binaries. These are
2006 64-bit binaries using 32-bit quantities for addressing and certain
2007 data that would normally be 64-bit. They are used in special
2008 cases.
2009
2010 If unsure, say N.
2011
2012config BINFMT_ELF32
2013 bool
2014 default y if MIPS32_O32 || MIPS32_N32
2015
2116245e
RB
2016endmenu
2017
2018menu "Power management options"
2019
2020source "kernel/power/Kconfig"
952fa954 2021
1da177e4
LT
2022endmenu
2023
d5950b43
SR
2024source "net/Kconfig"
2025
1da177e4
LT
2026source "drivers/Kconfig"
2027
2028source "fs/Kconfig"
2029
09cadedb 2030source "kernel/Kconfig.instrumentation"
5e83d430 2031
1da177e4
LT
2032source "arch/mips/Kconfig.debug"
2033
2034source "security/Kconfig"
2035
2036source "crypto/Kconfig"
2037
2038source "lib/Kconfig"