Linux 2.6.23
[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
6
875d43e7
RB
7mainmenu "Linux/MIPS Kernel Configuration"
8
1da177e4
LT
9menu "Machine selection"
10
5ac6da66
CL
11config ZONE_DMA
12 bool
5ac6da66 13
5e83d430
RB
14choice
15 prompt "System type"
16 default SGI_IP22
1da177e4 17
c3543e25
YY
18config MACH_ALCHEMY
19 bool "Alchemy processor based machines"
1da177e4 20
35189fad 21config BASLER_EXCITE
be91589e 22 bool "Basler eXcite smart camera"
35189fad
RB
23 select DMA_COHERENT
24 select HW_HAS_PCI
25 select IRQ_CPU
26 select IRQ_CPU_RM7K
27 select IRQ_CPU_RM9K
663c3d90 28 select MIPS_RM9122
35189fad
RB
29 select SYS_HAS_CPU_RM9000
30 select SYS_SUPPORTS_32BIT_KERNEL
35189fad 31 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 32 select SYS_SUPPORTS_KGDB
35189fad
RB
33 help
34 The eXcite is a smart camera platform manufactured by
be91589e 35 Basler Vision Technologies AG.
35189fad
RB
36
37config BASLER_EXCITE_PROTOTYPE
38 bool "Support for pre-release units"
39 depends on BASLER_EXCITE
40 default n
41 help
42 Pre-series (prototype) units are different from later ones in
43 some ways. Select this option if you have one of these. Please
44 note that a kernel built with this option selected will not be
45 able to run on normal units.
46
1da177e4 47config MIPS_COBALT
3fa986fa 48 bool "Cobalt Server"
1da177e4
LT
49 select DMA_NONCOHERENT
50 select HW_HAS_PCI
51 select I8259
52 select IRQ_CPU
252161ec 53 select PCI_GT64XXX_PCI0
7cf8053b 54 select SYS_HAS_CPU_NEVADA
0a22e0d4 55 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 58 select SYS_SUPPORTS_LITTLE_ENDIAN
9fd32cfb 59 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
60
61config MACH_DECSTATION
3fa986fa 62 bool "DECstations"
1da177e4
LT
63 select BOOT_ELF32
64 select DMA_NONCOHERENT
d388d685 65 select NO_IOPORT
1da177e4 66 select IRQ_CPU
7cf8053b
RB
67 select SYS_HAS_CPU_R3000
68 select SYS_HAS_CPU_R4X00
ed5ba2fb
YY
69 select SYS_SUPPORTS_32BIT_KERNEL
70 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 71 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
72 select SYS_SUPPORTS_128HZ
73 select SYS_SUPPORTS_256HZ
74 select SYS_SUPPORTS_1024HZ
5e83d430 75 help
1da177e4
LT
76 This enables support for DEC's MIPS based workstations. For details
77 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
78 DECstation porting pages on <http://decstation.unix-ag.org/>.
79
80 If you have one of the following DECstation Models you definitely
81 want to choose R4xx0 for the CPU Type:
82
9308816c
RB
83 DECstation 5000/50
84 DECstation 5000/150
85 DECstation 5000/260
86 DECsystem 5900/260
1da177e4
LT
87
88 otherwise choose R3000.
89
5e83d430 90config MACH_JAZZ
3fa986fa 91 bool "Jazz family of machines"
5e83d430
RB
92 select ARC
93 select ARC32
94 select ARCH_MAY_HAVE_PC_FDC
95 select GENERIC_ISA_DMA
96 select I8259
97 select ISA
de61b542 98 select PCSPEAKER
7cf8053b 99 select SYS_HAS_CPU_R4X00
5e83d430
RB
100 select SYS_SUPPORTS_32BIT_KERNEL
101 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
1723b4a3 102 select SYS_SUPPORTS_100HZ
9fd32cfb 103 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4 104 help
5e83d430
RB
105 This a family of machines based on the MIPS R4030 chipset which was
106 used by several vendors to build RISC/os and Windows NT workstations.
107 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
108 Olivetti M700-10 workstations.
109
ade299d8
YY
110config LEMOTE_FULONG
111 bool "Lemote Fulong mini-PC"
112 select ARCH_SPARSEMEM_ENABLE
113 select SYS_HAS_CPU_LOONGSON2
114 select DMA_NONCOHERENT
115 select BOOT_ELF32
116 select BOARD_SCACHE
117 select HAVE_STD_PC_SERIAL_PORT
118 select HW_HAS_PCI
119 select I8259
120 select ISA
121 select IRQ_CPU
122 select SYS_SUPPORTS_32BIT_KERNEL
123 select SYS_SUPPORTS_64BIT_KERNEL
124 select SYS_SUPPORTS_LITTLE_ENDIAN
125 select SYS_SUPPORTS_HIGHMEM
126 select SYS_HAS_EARLY_PRINTK
127 select GENERIC_HARDIRQS_NO__DO_IRQ
23dd6d35 128 select GENERIC_ISA_DMA_SUPPORT_BROKEN
ade299d8
YY
129 select CPU_HAS_WB
130 help
131 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
132 an FPGA northbridge
133
1da177e4 134config MIPS_ATLAS
3fa986fa 135 bool "MIPS Atlas board"
1da177e4
LT
136 select BOOT_ELF32
137 select DMA_NONCOHERENT
36a88530 138 select SYS_HAS_EARLY_PRINTK
5e83d430 139 select IRQ_CPU
1da177e4 140 select HW_HAS_PCI
5e83d430
RB
141 select MIPS_BOARDS_GEN
142 select MIPS_BONITO64
252161ec 143 select PCI_GT64XXX_PCI0
5e83d430 144 select MIPS_MSC
f4b7cdb4 145 select RM7000_CPU_SCACHE
1da177e4 146 select SWAP_IO_SPACE
7cf8053b
RB
147 select SYS_HAS_CPU_MIPS32_R1
148 select SYS_HAS_CPU_MIPS32_R2
149 select SYS_HAS_CPU_MIPS64_R1
150 select SYS_HAS_CPU_NEVADA
151 select SYS_HAS_CPU_RM7000
ed5ba2fb
YY
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
154 select SYS_SUPPORTS_BIG_ENDIAN
155 select SYS_SUPPORTS_LITTLE_ENDIAN
f41ae0b2 156 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
9693a853 157 select SYS_SUPPORTS_SMARTMIPS
e77c232c 158 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4 159 help
f638d197 160 This enables support for the MIPS Technologies Atlas evaluation
1da177e4
LT
161 board.
162
163config MIPS_MALTA
3fa986fa 164 bool "MIPS Malta board"
61ed242d 165 select ARCH_MAY_HAVE_PC_FDC
1da177e4 166 select BOOT_ELF32
1da177e4
LT
167 select DMA_NONCOHERENT
168 select GENERIC_ISA_DMA
aa414dff 169 select IRQ_CPU
1da177e4
LT
170 select HW_HAS_PCI
171 select I8259
5e83d430
RB
172 select MIPS_BOARDS_GEN
173 select MIPS_BONITO64
9318c51a 174 select MIPS_CPU_SCACHE
252161ec 175 select PCI_GT64XXX_PCI0
5e83d430 176 select MIPS_MSC
1da177e4 177 select SWAP_IO_SPACE
7cf8053b
RB
178 select SYS_HAS_CPU_MIPS32_R1
179 select SYS_HAS_CPU_MIPS32_R2
180 select SYS_HAS_CPU_MIPS64_R1
181 select SYS_HAS_CPU_NEVADA
182 select SYS_HAS_CPU_RM7000
36a88530 183 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
184 select SYS_SUPPORTS_32BIT_KERNEL
185 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
186 select SYS_SUPPORTS_BIG_ENDIAN
187 select SYS_SUPPORTS_LITTLE_ENDIAN
f41ae0b2 188 select SYS_SUPPORTS_MULTITHREADING
9693a853 189 select SYS_SUPPORTS_SMARTMIPS
1da177e4 190 help
f638d197 191 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
192 board.
193
194config MIPS_SEAD
d98cc84d 195 bool "MIPS SEAD board"
1da177e4
LT
196 select IRQ_CPU
197 select DMA_NONCOHERENT
36a88530 198 select SYS_HAS_EARLY_PRINTK
5e83d430 199 select MIPS_BOARDS_GEN
7cf8053b
RB
200 select SYS_HAS_CPU_MIPS32_R1
201 select SYS_HAS_CPU_MIPS32_R2
202 select SYS_HAS_CPU_MIPS64_R1
ed5ba2fb 203 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430
RB
204 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
205 select SYS_SUPPORTS_BIG_ENDIAN
206 select SYS_SUPPORTS_LITTLE_ENDIAN
9693a853 207 select SYS_SUPPORTS_SMARTMIPS
f638d197
MR
208 help
209 This enables support for the MIPS Technologies SEAD evaluation
210 board.
1da177e4 211
5e83d430 212config MIPS_SIM
3fa986fa 213 bool 'MIPS simulator (MIPSsim)'
1da177e4 214 select DMA_NONCOHERENT
36a88530 215 select SYS_HAS_EARLY_PRINTK
1da177e4 216 select IRQ_CPU
9267a30d 217 select BOOT_RAW
7cf8053b
RB
218 select SYS_HAS_CPU_MIPS32_R1
219 select SYS_HAS_CPU_MIPS32_R2
36a88530 220 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 221 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430 222 select SYS_SUPPORTS_BIG_ENDIAN
f6e2373a 223 select SYS_SUPPORTS_MULTITHREADING
5e83d430 224 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 225 help
5e83d430
RB
226 This option enables support for MIPS Technologies MIPSsim software
227 emulator.
1da177e4 228
ade299d8
YY
229config MARKEINS
230 bool "NEC EMMA2RH Mark-eins"
231 select DMA_NONCOHERENT
232 select HW_HAS_PCI
233 select IRQ_CPU
234 select SWAP_IO_SPACE
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_BIG_ENDIAN
237 select SYS_SUPPORTS_LITTLE_ENDIAN
238 select SYS_HAS_CPU_R5000
239 help
240 This enables support for the R5432-based NEC Mark-eins
241 boards with R5500 CPU.
242
5e83d430 243config MACH_VR41XX
74142d65 244 bool "NEC VR4100 series based machines"
7cf8053b 245 select SYS_HAS_CPU_VR41XX
9fd32cfb 246 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 247
ade299d8
YY
248config PNX8550_JBS
249 bool "Philips PNX8550 based JBS board"
250 select PNX8550
251 select SYS_SUPPORTS_LITTLE_ENDIAN
252
253config PNX8550_STB810
254 bool "Philips PNX8550 based STB810 board"
255 select PNX8550
256 select SYS_SUPPORTS_LITTLE_ENDIAN
257
9267a30d
MSJ
258config PMC_MSP
259 bool "PMC-Sierra MSP chipsets"
260 depends on EXPERIMENTAL
261 select DMA_NONCOHERENT
262 select SWAP_IO_SPACE
263 select NO_EXCEPT_FILL
264 select BOOT_RAW
265 select SYS_HAS_CPU_MIPS32_R1
266 select SYS_HAS_CPU_MIPS32_R2
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_BIG_ENDIAN
269 select SYS_SUPPORTS_KGDB
270 select IRQ_CPU
271 select SERIAL_8250
272 select SERIAL_8250_CONSOLE
273 help
274 This adds support for the PMC-Sierra family of Multi-Service
275 Processor System-On-A-Chips. These parts include a number
276 of integrated peripherals, interfaces and DSPs in addition to
277 a variety of MIPS cores.
278
5e83d430 279config PMC_YOSEMITE
3fa986fa 280 bool "PMC-Sierra Yosemite eval board"
5e83d430
RB
281 select DMA_COHERENT
282 select HW_HAS_PCI
283 select IRQ_CPU
284 select IRQ_CPU_RM7K
285 select IRQ_CPU_RM9K
286 select SWAP_IO_SPACE
7cf8053b 287 select SYS_HAS_CPU_RM9000
36a88530 288 select SYS_HAS_EARLY_PRINTK
5e83d430
RB
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_64BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_HIGHMEM
cc801077 293 select SYS_SUPPORTS_KGDB
e73ea273 294 select SYS_SUPPORTS_SMP
5e83d430
RB
295 help
296 Yosemite is an evaluation board for the RM9000x2 processor
297 manufactured by PMC-Sierra.
1da177e4 298
07119621 299config QEMU
3fa986fa 300 bool "Qemu"
07119621
RB
301 select DMA_COHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_STD_PC_SERIAL_PORT
304 select I8259
305 select ISA
de61b542 306 select PCSPEAKER
07119621 307 select SWAP_IO_SPACE
7cf8053b 308 select SYS_HAS_CPU_MIPS32_R1
07119621
RB
309 select SYS_SUPPORTS_32BIT_KERNEL
310 select SYS_SUPPORTS_BIG_ENDIAN
c8cc9618 311 select SYS_SUPPORTS_LITTLE_ENDIAN
b1c6cd42 312 select ARCH_SPARSEMEM_ENABLE
9fd32cfb 313 select GENERIC_HARDIRQS_NO__DO_IRQ
72ede9b1
AN
314 select NR_CPUS_DEFAULT_1
315 select SYS_SUPPORTS_SMP
07119621 316 help
5e83d430
RB
317 Qemu is a software emulator which among other architectures also
318 can simulate a MIPS32 4Kc system. This patch adds support for the
319 system architecture that currently is being simulated by Qemu. It
320 will eventually be removed again when Qemu has the capability to
321 simulate actual MIPS hardware platforms. More information on Qemu
322 can be found at http://www.linux-mips.org/wiki/Qemu.
07119621 323
1da177e4 324config SGI_IP22
3fa986fa 325 bool "SGI IP22 (Indy/Indigo2)"
1da177e4
LT
326 select ARC
327 select ARC32
328 select BOOT_ELF32
329 select DMA_NONCOHERENT
5e83d430 330 select HW_HAS_EISA
1da177e4
LT
331 select IP22_CPU_SCACHE
332 select IRQ_CPU
aa414dff 333 select GENERIC_ISA_DMA_SUPPORT_BROKEN
1da177e4 334 select SWAP_IO_SPACE
7cf8053b
RB
335 select SYS_HAS_CPU_R4X00
336 select SYS_HAS_CPU_R5000
36a88530 337 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 340 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
341 help
342 This are the SGI Indy, Challenge S and Indigo2, as well as certain
343 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
344 that runs on these, say Y here.
345
346config SGI_IP27
3fa986fa 347 bool "SGI IP27 (Origin200/2000)"
1da177e4
LT
348 select ARC
349 select ARC64
5e83d430 350 select BOOT_ELF64
1da177e4 351 select DMA_IP27
36a88530 352 select SYS_HAS_EARLY_PRINTK
1da177e4 353 select HW_HAS_PCI
130e2fb7 354 select NR_CPUS_DEFAULT_64
1da177e4 355 select PCI_DOMAINS
7cf8053b 356 select SYS_HAS_CPU_R10000
ed5ba2fb 357 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 358 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 359 select SYS_SUPPORTS_KGDB
d8cb4e11 360 select SYS_SUPPORTS_NUMA
1a5c5de1 361 select SYS_SUPPORTS_SMP
e77c232c 362 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
363 help
364 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
365 workstations. To compile a Linux kernel that runs on these, say Y
366 here.
367
1da177e4 368config SGI_IP32
cfd2afc0 369 bool "SGI IP32 (O2)"
1da177e4
LT
370 select ARC
371 select ARC32
372 select BOOT_ELF32
1da177e4
LT
373 select DMA_NONCOHERENT
374 select HW_HAS_PCI
375 select R5000_CPU_SCACHE
376 select RM7000_CPU_SCACHE
7cf8053b
RB
377 select SYS_HAS_CPU_R5000
378 select SYS_HAS_CPU_R10000 if BROKEN
379 select SYS_HAS_CPU_RM7000
dd2f18fe 380 select SYS_HAS_CPU_NEVADA
ed5ba2fb 381 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 382 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 383 help
5e83d430 384 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 385
ade299d8
YY
386config SIBYTE_CRHINE
387 bool "Sibyte BCM91120C-CRhine"
388 depends on EXPERIMENTAL
9a6dcea1
AI
389 select BOOT_ELF32
390 select DMA_COHERENT
ade299d8 391 select SIBYTE_BCM1120
9a6dcea1 392 select SWAP_IO_SPACE
7cf8053b 393 select SYS_HAS_CPU_SB1
9a6dcea1
AI
394 select SYS_SUPPORTS_BIG_ENDIAN
395 select SYS_SUPPORTS_LITTLE_ENDIAN
396
ade299d8
YY
397config SIBYTE_CARMEL
398 bool "Sibyte BCM91120x-Carmel"
399 depends on EXPERIMENTAL
5e83d430 400 select BOOT_ELF32
1da177e4 401 select DMA_COHERENT
ade299d8 402 select SIBYTE_BCM1120
5e83d430 403 select SWAP_IO_SPACE
7cf8053b 404 select SYS_HAS_CPU_SB1
81731f79 405 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 406 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 407
ade299d8
YY
408config SIBYTE_CRHONE
409 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
410 depends on EXPERIMENTAL
411 select BOOT_ELF32
412 select DMA_COHERENT
ade299d8 413 select SIBYTE_BCM1125
5e83d430 414 select SWAP_IO_SPACE
7cf8053b 415 select SYS_HAS_CPU_SB1
5e83d430 416 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 417 select SYS_SUPPORTS_HIGHMEM
5e83d430 418 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 419
5e83d430 420config SIBYTE_RHONE
3fa986fa 421 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
422 depends on EXPERIMENTAL
423 select BOOT_ELF32
424 select DMA_COHERENT
425 select SIBYTE_BCM1125H
426 select SWAP_IO_SPACE
7cf8053b 427 select SYS_HAS_CPU_SB1
5e83d430
RB
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 430
ade299d8
YY
431config SIBYTE_SWARM
432 bool "Sibyte BCM91250A-SWARM"
5e83d430 433 select BOOT_ELF32
26a940e2 434 select DMA_COHERENT
ade299d8
YY
435 select NR_CPUS_DEFAULT_2
436 select SIBYTE_SB1250
5e83d430 437 select SWAP_IO_SPACE
7cf8053b 438 select SYS_HAS_CPU_SB1
5e83d430 439 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8
YY
440 select SYS_SUPPORTS_HIGHMEM
441 select SYS_SUPPORTS_KGDB
e3ad1c23
PP
442 select SYS_SUPPORTS_LITTLE_ENDIAN
443
ade299d8
YY
444config SIBYTE_LITTLESUR
445 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
446 depends on EXPERIMENTAL
447 select BOOT_ELF32
448 select DMA_COHERENT
130e2fb7 449 select NR_CPUS_DEFAULT_2
5e83d430
RB
450 select SIBYTE_SB1250
451 select SWAP_IO_SPACE
7cf8053b 452 select SYS_HAS_CPU_SB1
5e83d430
RB
453 select SYS_SUPPORTS_BIG_ENDIAN
454 select SYS_SUPPORTS_HIGHMEM
455 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 456
ade299d8
YY
457config SIBYTE_SENTOSA
458 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
459 depends on EXPERIMENTAL
460 select BOOT_ELF32
461 select DMA_COHERENT
130e2fb7 462 select NR_CPUS_DEFAULT_2
5e83d430
RB
463 select SIBYTE_SB1250
464 select SWAP_IO_SPACE
7cf8053b 465 select SYS_HAS_CPU_SB1
5e83d430 466 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 467 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 468
ade299d8
YY
469config SIBYTE_PTSWARM
470 bool "Sibyte BCM91250PT-PTSWARM"
5e83d430
RB
471 depends on EXPERIMENTAL
472 select BOOT_ELF32
473 select DMA_COHERENT
ade299d8
YY
474 select NR_CPUS_DEFAULT_2
475 select SIBYTE_SB1250
5e83d430 476 select SWAP_IO_SPACE
7cf8053b 477 select SYS_HAS_CPU_SB1
5e83d430 478 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 479 select SYS_SUPPORTS_HIGHMEM
5e83d430 480 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 481
ade299d8
YY
482config SIBYTE_BIGSUR
483 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
484 select BOOT_ELF32
485 select DMA_COHERENT
ade299d8
YY
486 select NR_CPUS_DEFAULT_4
487 select PCI_DOMAINS
488 select SIBYTE_BCM1x80
5e83d430 489 select SWAP_IO_SPACE
7cf8053b 490 select SYS_HAS_CPU_SB1
5e83d430 491 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 492 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 493
14b36af4
TB
494config SNI_RM
495 bool "SNI RM200/300/400"
4a0312fc
TB
496 select ARC if CPU_LITTLE_ENDIAN
497 select ARC32 if CPU_LITTLE_ENDIAN
61ed242d 498 select ARCH_MAY_HAVE_PC_FDC
1da177e4
LT
499 select BOOT_ELF32
500 select DMA_NONCOHERENT
501 select GENERIC_ISA_DMA
5e83d430 502 select HW_HAS_EISA
1da177e4 503 select HW_HAS_PCI
c066a32a 504 select IRQ_CPU
1da177e4
LT
505 select I8259
506 select ISA
de61b542 507 select PCSPEAKER
4a0312fc 508 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 509 select SYS_HAS_CPU_R4X00
4a0312fc 510 select SYS_HAS_CPU_R5000
c066a32a 511 select SYS_HAS_CPU_R10000
4a0312fc 512 select R5000_CPU_SCACHE
36a88530 513 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
514 select SYS_SUPPORTS_32BIT_KERNEL
515 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
4a0312fc 516 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 517 select SYS_SUPPORTS_HIGHMEM
5e83d430 518 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 519 help
14b36af4
TB
520 The SNI RM200/300/400 are MIPS-based machines manufactured by
521 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
522 Technology and now in turn merged with Fujitsu. Say Y here to
523 support this machine type.
524
5e83d430 525config TOSHIBA_JMR3927
3fa986fa 526 bool "Toshiba JMR-TX3927 board"
5e83d430
RB
527 select DMA_NONCOHERENT
528 select HW_HAS_PCI
529 select MIPS_TX3927
c87abd75 530 select IRQ_TXX9
5e83d430 531 select SWAP_IO_SPACE
7cf8053b 532 select SYS_HAS_CPU_TX39XX
5e83d430 533 select SYS_SUPPORTS_32BIT_KERNEL
6a2603a2 534 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 535 select SYS_SUPPORTS_BIG_ENDIAN
2127435e 536 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 537
1da177e4 538config TOSHIBA_RBTX4927
08a91283 539 bool "Toshiba RBTX49[23]7 board"
1da177e4
LT
540 select DMA_NONCOHERENT
541 select HAS_TXX9_SERIAL
542 select HW_HAS_PCI
c87abd75
AN
543 select IRQ_CPU
544 select IRQ_TXX9
545 select I8259 if TOSHIBA_FPCIB0
1da177e4 546 select SWAP_IO_SPACE
7cf8053b 547 select SYS_HAS_CPU_TX49XX
ed5ba2fb
YY
548 select SYS_SUPPORTS_32BIT_KERNEL
549 select SYS_SUPPORTS_64BIT_KERNEL
6a2603a2 550 select SYS_SUPPORTS_LITTLE_ENDIAN
5e83d430 551 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 552 select SYS_SUPPORTS_KGDB
9fd32cfb 553 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
554 help
555 This Toshiba board is based on the TX4927 processor. Say Y here to
556 support this machine type
557
5e83d430 558config TOSHIBA_RBTX4938
3fa986fa 559 bool "Toshiba RBTX4938 board"
5e83d430 560 select DMA_NONCOHERENT
5e83d430
RB
561 select HAS_TXX9_SERIAL
562 select HW_HAS_PCI
c87abd75
AN
563 select IRQ_CPU
564 select IRQ_TXX9
5e83d430 565 select SWAP_IO_SPACE
7cf8053b 566 select SYS_HAS_CPU_TX49XX
5e83d430
RB
567 select SYS_SUPPORTS_32BIT_KERNEL
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569 select SYS_SUPPORTS_BIG_ENDIAN
cc801077 570 select SYS_SUPPORTS_KGDB
9fd32cfb 571 select GENERIC_HARDIRQS_NO__DO_IRQ
3896b054 572 select GENERIC_GPIO
5e83d430
RB
573 help
574 This Toshiba board is based on the TX4938 processor. Say Y here to
575 support this machine type
576
ade299d8
YY
577config WR_PPMC
578 bool "Wind River PPMC board"
579 select IRQ_CPU
580 select BOOT_ELF32
581 select DMA_NONCOHERENT
582 select HW_HAS_PCI
583 select PCI_GT64XXX_PCI0
584 select SWAP_IO_SPACE
585 select SYS_HAS_CPU_MIPS32_R1
586 select SYS_HAS_CPU_MIPS32_R2
587 select SYS_HAS_CPU_MIPS64_R1
588 select SYS_HAS_CPU_NEVADA
589 select SYS_HAS_CPU_RM7000
590 select SYS_SUPPORTS_32BIT_KERNEL
591 select SYS_SUPPORTS_64BIT_KERNEL
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
594 help
595 This enables support for the Wind River MIPS32 4KC PPMC evaluation
596 board, which is based on GT64120 bridge chip.
597
5e83d430 598endchoice
1da177e4 599
c3543e25 600source "arch/mips/au1000/Kconfig"
5e83d430 601source "arch/mips/jazz/Kconfig"
5e83d430 602source "arch/mips/pmc-sierra/Kconfig"
29c48699 603source "arch/mips/sgi-ip27/Kconfig"
38b18f72 604source "arch/mips/sibyte/Kconfig"
5e83d430 605source "arch/mips/tx4927/Kconfig"
23fbee9d 606source "arch/mips/tx4938/Kconfig"
5e83d430 607source "arch/mips/vr41xx/Kconfig"
38b18f72 608
5e83d430
RB
609endmenu
610
1da177e4
LT
611config RWSEM_GENERIC_SPINLOCK
612 bool
613 default y
614
615config RWSEM_XCHGADD_ALGORITHM
616 bool
617
f0d1b0b3
DH
618config ARCH_HAS_ILOG2_U32
619 bool
620 default n
621
622config ARCH_HAS_ILOG2_U64
623 bool
624 default n
625
3c9ee7ef
AM
626config GENERIC_FIND_NEXT_BIT
627 bool
628 default y
629
630config GENERIC_HWEIGHT
631 bool
632 default y
633
1da177e4
LT
634config GENERIC_CALIBRATE_DELAY
635 bool
636 default y
637
8db02010
RB
638config GENERIC_TIME
639 bool
640 default y
641
1cc89038
AN
642config SCHED_NO_NO_OMIT_FRAME_POINTER
643 bool
644 default y
645
e77c232c
FBH
646config GENERIC_HARDIRQS_NO__DO_IRQ
647 bool
648 default n
649
1da177e4
LT
650#
651# Select some configuration options automatically based on user selections.
652#
653config ARC
654 bool
1da177e4 655
61ed242d
RB
656config ARCH_MAY_HAVE_PC_FDC
657 bool
658
9267a30d
MSJ
659config BOOT_RAW
660 bool
661
4ce588cd 662config DMA_COHERENT
1da177e4
LT
663 bool
664
4ce588cd 665config DMA_IP27
1da177e4
LT
666 bool
667
4ce588cd
RB
668config DMA_IP32
669 bool
670 select DMA_NEED_PCI_MAP_STATE
671
672config DMA_NONCOHERENT
673 bool
674 select DMA_NEED_PCI_MAP_STATE
675
676config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
677 bool
678
679config EARLY_PRINTK
36a88530
RB
680 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
681 depends on SYS_HAS_EARLY_PRINTK
682 default y
683 help
684 This option enables special console drivers which allow the kernel
685 to print messages very early in the bootup process.
686
687 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
688 early before the console code is initialized. For normal operation,
689 it is not recommended because it looks ugly on some machines and
690 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
691 unless you want to debug such a crash.
692
693config SYS_HAS_EARLY_PRINTK
1da177e4 694 bool
1da177e4 695
dbb74540
RB
696config HOTPLUG_CPU
697 bool
698 default n
699
1da177e4
LT
700config I8259
701 bool
1da177e4 702
1da177e4
LT
703config MIPS_BONITO64
704 bool
1da177e4
LT
705
706config MIPS_MSC
707 bool
1da177e4 708
1da177e4
LT
709config MIPS_DISABLE_OBSOLETE_IDE
710 bool
711
d388d685
MR
712config NO_IOPORT
713 def_bool n
714
8313da30
RB
715config GENERIC_ISA_DMA
716 bool
717 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
718
aa414dff
RB
719config GENERIC_ISA_DMA_SUPPORT_BROKEN
720 bool
8313da30 721 select GENERIC_ISA_DMA
aa414dff 722
09663335
YY
723config GENERIC_GPIO
724 bool
725
5e83d430 726#
3cb2fccc 727# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
728# answer,so we try hard to limit the available choices. Also the use of a
729# choice statement should be more obvious to the user.
730#
731choice
732 prompt "Endianess selection"
1da177e4
LT
733 help
734 Some MIPS machines can be configured for either little or big endian
5e83d430 735 byte order. These modes require different kernels and a different
3cb2fccc 736 Linux distribution. In general there is one preferred byteorder for a
5e83d430 737 particular system but some systems are just as commonly used in the
3dde6ad8 738 one or the other endianness.
5e83d430
RB
739
740config CPU_BIG_ENDIAN
741 bool "Big endian"
742 depends on SYS_SUPPORTS_BIG_ENDIAN
743
744config CPU_LITTLE_ENDIAN
745 bool "Little endian"
746 depends on SYS_SUPPORTS_LITTLE_ENDIAN
747 help
748
749endchoice
750
2116245e
RB
751config SYS_SUPPORTS_APM_EMULATION
752 bool
753
5e83d430
RB
754config SYS_SUPPORTS_BIG_ENDIAN
755 bool
756
757config SYS_SUPPORTS_LITTLE_ENDIAN
758 bool
1da177e4
LT
759
760config IRQ_CPU
761 bool
762
763config IRQ_CPU_RM7K
764 bool
765
5e83d430
RB
766config IRQ_CPU_RM9K
767 bool
768
9267a30d
MSJ
769config IRQ_MSP_SLP
770 bool
771
772config IRQ_MSP_CIC
773 bool
774
8420fd00
AN
775config IRQ_TXX9
776 bool
777
1da177e4
LT
778config MIPS_BOARDS_GEN
779 bool
1da177e4 780
252161ec 781config PCI_GT64XXX_PCI0
1da177e4 782 bool
1da177e4 783
9267a30d
MSJ
784config NO_EXCEPT_FILL
785 bool
786
1da177e4
LT
787config MIPS_TX3927
788 bool
1da177e4 789 select HAS_TXX9_SERIAL
1da177e4 790
663c3d90 791config MIPS_RM9122
792 bool
793 select SERIAL_RM9000
663c3d90 794
bdf21b18
PP
795config PNX8550
796 bool
797 select SOC_PNX8550
798
799config SOC_PNX8550
800 bool
bdf21b18
PP
801 select DMA_NONCOHERENT
802 select HW_HAS_PCI
b8c2a77c 803 select SYS_HAS_CPU_MIPS32_R1
36a88530 804 select SYS_HAS_EARLY_PRINTK
7cf8053b 805 select SYS_SUPPORTS_32BIT_KERNEL
e77c232c 806 select GENERIC_HARDIRQS_NO__DO_IRQ
cc801077 807 select SYS_SUPPORTS_KGDB
4ead1681 808 select GENERIC_GPIO
bdf21b18 809
1da177e4
LT
810config SWAP_IO_SPACE
811 bool
812
355c471f 813config EMMA2RH
814 bool
815 depends on MARKEINS
816 default y
817
663c3d90 818config SERIAL_RM9000
819 bool
820
5e83d430
RB
821config ARC32
822 bool
823
1da177e4
LT
824config BOOT_ELF32
825 bool
1da177e4
LT
826
827config MIPS_L1_CACHE_SHIFT
828 int
06cf5583
TB
829 default "4" if MACH_DECSTATION
830 default "7" if SGI_IP27 || SNI_RM
9267a30d 831 default "4" if PMC_MSP4200_EVAL
1da177e4
LT
832 default "5"
833
1da177e4
LT
834config HAVE_STD_PC_SERIAL_PORT
835 bool
836
1da177e4
LT
837config ARC_CONSOLE
838 bool "ARC console support"
36a88530 839 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
840
841config ARC_MEMORY
842 bool
14b36af4 843 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
844 default y
845
846config ARC_PROMLIB
847 bool
14b36af4 848 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
1da177e4
LT
849 default y
850
851config ARC64
852 bool
1da177e4
LT
853
854config BOOT_ELF64
855 bool
1da177e4 856
1da177e4
LT
857menu "CPU selection"
858
859choice
860 prompt "CPU type"
861 default CPU_R4X00
862
2a21c730
FZ
863config CPU_LOONGSON2
864 bool "Loongson 2"
865 depends on SYS_HAS_CPU_LOONGSON2
866 select CPU_SUPPORTS_32BIT_KERNEL
867 select CPU_SUPPORTS_64BIT_KERNEL
868 select CPU_SUPPORTS_HIGHMEM
869 help
870 The Loongson 2E processor implements the MIPS III instruction set
871 with many extensions.
872
6e760c8d
RB
873config CPU_MIPS32_R1
874 bool "MIPS32 Release 1"
7cf8053b 875 depends on SYS_HAS_CPU_MIPS32_R1
f7062ddb 876 select CPU_HAS_LLSC
6e760c8d 877 select CPU_HAS_PREFETCH
797798c1 878 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 879 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 880 help
5e83d430 881 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
882 MIPS32 architecture. Most modern embedded systems with a 32-bit
883 MIPS processor are based on a MIPS32 processor. If you know the
884 specific type of processor in your system, choose those that one
885 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
886 Release 2 of the MIPS32 architecture is available since several
887 years so chances are you even have a MIPS32 Release 2 processor
888 in which case you should choose CPU_MIPS32_R2 instead for better
889 performance.
890
891config CPU_MIPS32_R2
892 bool "MIPS32 Release 2"
7cf8053b 893 depends on SYS_HAS_CPU_MIPS32_R2
f7062ddb 894 select CPU_HAS_LLSC
1e5f1caa 895 select CPU_HAS_PREFETCH
797798c1 896 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 897 select CPU_SUPPORTS_HIGHMEM
6e760c8d 898 help
5e83d430 899 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
900 MIPS32 architecture. Most modern embedded systems with a 32-bit
901 MIPS processor are based on a MIPS32 processor. If you know the
902 specific type of processor in your system, choose those that one
903 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
904
905config CPU_MIPS64_R1
906 bool "MIPS64 Release 1"
7cf8053b 907 depends on SYS_HAS_CPU_MIPS64_R1
f7062ddb 908 select CPU_HAS_LLSC
797798c1 909 select CPU_HAS_PREFETCH
ed5ba2fb
YY
910 select CPU_SUPPORTS_32BIT_KERNEL
911 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 912 select CPU_SUPPORTS_HIGHMEM
6e760c8d
RB
913 help
914 Choose this option to build a kernel for release 1 or later of the
915 MIPS64 architecture. Many modern embedded systems with a 64-bit
916 MIPS processor are based on a MIPS64 processor. If you know the
917 specific type of processor in your system, choose those that one
918 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
919 Release 2 of the MIPS64 architecture is available since several
920 years so chances are you even have a MIPS64 Release 2 processor
921 in which case you should choose CPU_MIPS64_R2 instead for better
922 performance.
923
924config CPU_MIPS64_R2
925 bool "MIPS64 Release 2"
7cf8053b 926 depends on SYS_HAS_CPU_MIPS64_R2
f7062ddb 927 select CPU_HAS_LLSC
797798c1 928 select CPU_HAS_PREFETCH
1e5f1caa
RB
929 select CPU_SUPPORTS_32BIT_KERNEL
930 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 931 select CPU_SUPPORTS_HIGHMEM
1e5f1caa
RB
932 help
933 Choose this option to build a kernel for release 2 or later of the
934 MIPS64 architecture. Many modern embedded systems with a 64-bit
935 MIPS processor are based on a MIPS64 processor. If you know the
936 specific type of processor in your system, choose those that one
937 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
938
939config CPU_R3000
940 bool "R3000"
7cf8053b 941 depends on SYS_HAS_CPU_R3000
f7062ddb 942 select CPU_HAS_WB
ed5ba2fb 943 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 944 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
945 help
946 Please make sure to pick the right CPU type. Linux/MIPS is not
947 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
948 *not* work on R4000 machines and vice versa. However, since most
949 of the supported machines have an R4000 (or similar) CPU, R4x00
950 might be a safe bet. If the resulting kernel does not work,
951 try to recompile with R3000.
952
953config CPU_TX39XX
954 bool "R39XX"
7cf8053b 955 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 956 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
957
958config CPU_VR41XX
959 bool "R41xx"
7cf8053b 960 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
961 select CPU_SUPPORTS_32BIT_KERNEL
962 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 963 help
5e83d430 964 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
965 Only choose this option if you have one of these processors as a
966 kernel built with this option will not run on any other type of
967 processor or vice versa.
968
969config CPU_R4300
970 bool "R4300"
7cf8053b 971 depends on SYS_HAS_CPU_R4300
f7062ddb 972 select CPU_HAS_LLSC
ed5ba2fb
YY
973 select CPU_SUPPORTS_32BIT_KERNEL
974 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
975 help
976 MIPS Technologies R4300-series processors.
977
978config CPU_R4X00
979 bool "R4x00"
7cf8053b 980 depends on SYS_HAS_CPU_R4X00
f7062ddb 981 select CPU_HAS_LLSC
ed5ba2fb
YY
982 select CPU_SUPPORTS_32BIT_KERNEL
983 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
984 help
985 MIPS Technologies R4000-series processors other than 4300, including
986 the R4000, R4400, R4600, and 4700.
987
988config CPU_TX49XX
989 bool "R49XX"
7cf8053b 990 depends on SYS_HAS_CPU_TX49XX
f7062ddb 991 select CPU_HAS_LLSC
de862b48 992 select CPU_HAS_PREFETCH
ed5ba2fb
YY
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
995
996config CPU_R5000
997 bool "R5000"
7cf8053b 998 depends on SYS_HAS_CPU_R5000
f7062ddb 999 select CPU_HAS_LLSC
ed5ba2fb
YY
1000 select CPU_SUPPORTS_32BIT_KERNEL
1001 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1002 help
1003 MIPS Technologies R5000-series processors other than the Nevada.
1004
1005config CPU_R5432
1006 bool "R5432"
7cf8053b 1007 depends on SYS_HAS_CPU_R5432
f7062ddb 1008 select CPU_HAS_LLSC
5e83d430
RB
1009 select CPU_SUPPORTS_32BIT_KERNEL
1010 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1011
1012config CPU_R6000
1013 bool "R6000"
ed5ba2fb 1014 depends on EXPERIMENTAL
f7062ddb 1015 select CPU_HAS_LLSC
7cf8053b 1016 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1017 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1018 help
1019 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1020 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1021
1022config CPU_NEVADA
1023 bool "RM52xx"
7cf8053b 1024 depends on SYS_HAS_CPU_NEVADA
f7062ddb 1025 select CPU_HAS_LLSC
ed5ba2fb
YY
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1028 help
1029 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1030
1031config CPU_R8000
1032 bool "R8000"
ed5ba2fb 1033 depends on EXPERIMENTAL
7cf8053b 1034 depends on SYS_HAS_CPU_R8000
f7062ddb 1035 select CPU_HAS_LLSC
5e83d430 1036 select CPU_HAS_PREFETCH
ed5ba2fb 1037 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1038 help
1039 MIPS Technologies R8000 processors. Note these processors are
1040 uncommon and the support for them is incomplete.
1041
1042config CPU_R10000
1043 bool "R10000"
7cf8053b 1044 depends on SYS_HAS_CPU_R10000
f7062ddb 1045 select CPU_HAS_LLSC
5e83d430 1046 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1047 select CPU_SUPPORTS_32BIT_KERNEL
1048 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1049 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1050 help
1051 MIPS Technologies R10000-series processors.
1052
1053config CPU_RM7000
1054 bool "RM7000"
7cf8053b 1055 depends on SYS_HAS_CPU_RM7000
f7062ddb 1056 select CPU_HAS_LLSC
5e83d430 1057 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1060 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1061
1062config CPU_RM9000
1063 bool "RM9000"
7cf8053b 1064 depends on SYS_HAS_CPU_RM9000
f7062ddb 1065 select CPU_HAS_LLSC
5e83d430 1066 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1067 select CPU_SUPPORTS_32BIT_KERNEL
1068 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1069 select CPU_SUPPORTS_HIGHMEM
0004a9df 1070 select WEAK_ORDERING
1da177e4
LT
1071
1072config CPU_SB1
1073 bool "SB1"
7cf8053b 1074 depends on SYS_HAS_CPU_SB1
f7062ddb 1075 select CPU_HAS_LLSC
ed5ba2fb
YY
1076 select CPU_SUPPORTS_32BIT_KERNEL
1077 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1078 select CPU_SUPPORTS_HIGHMEM
0004a9df 1079 select WEAK_ORDERING
1da177e4
LT
1080
1081endchoice
1082
2a21c730
FZ
1083config SYS_HAS_CPU_LOONGSON2
1084 bool
1085
7cf8053b
RB
1086config SYS_HAS_CPU_MIPS32_R1
1087 bool
1088
1089config SYS_HAS_CPU_MIPS32_R2
1090 bool
1091
1092config SYS_HAS_CPU_MIPS64_R1
1093 bool
1094
1095config SYS_HAS_CPU_MIPS64_R2
1096 bool
1097
1098config SYS_HAS_CPU_R3000
1099 bool
1100
1101config SYS_HAS_CPU_TX39XX
1102 bool
1103
1104config SYS_HAS_CPU_VR41XX
1105 bool
1106
1107config SYS_HAS_CPU_R4300
1108 bool
1109
1110config SYS_HAS_CPU_R4X00
1111 bool
1112
1113config SYS_HAS_CPU_TX49XX
1114 bool
1115
1116config SYS_HAS_CPU_R5000
1117 bool
1118
1119config SYS_HAS_CPU_R5432
1120 bool
1121
1122config SYS_HAS_CPU_R6000
1123 bool
1124
1125config SYS_HAS_CPU_NEVADA
1126 bool
1127
1128config SYS_HAS_CPU_R8000
1129 bool
1130
1131config SYS_HAS_CPU_R10000
1132 bool
1133
1134config SYS_HAS_CPU_RM7000
1135 bool
1136
1137config SYS_HAS_CPU_RM9000
1138 bool
1139
1140config SYS_HAS_CPU_SB1
1141 bool
1142
17099b11
RB
1143#
1144# CPU may reorder R->R, R->W, W->R, W->W
1145# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1146#
0004a9df
RB
1147config WEAK_ORDERING
1148 bool
17099b11
RB
1149
1150#
1151# CPU may reorder reads and writes beyond LL/SC
1152# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1153#
1154config WEAK_REORDERING_BEYOND_LLSC
1155 bool
5e83d430
RB
1156endmenu
1157
1158#
c09b47d8 1159# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1160#
1161config CPU_MIPS32
1162 bool
1163 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1164
1165config CPU_MIPS64
1166 bool
1167 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1168
1169#
c09b47d8 1170# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1171#
1172config CPU_MIPSR1
1173 bool
1174 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1175
1176config CPU_MIPSR2
1177 bool
1178 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1179
1180config SYS_SUPPORTS_32BIT_KERNEL
1181 bool
1182config SYS_SUPPORTS_64BIT_KERNEL
1183 bool
1184config CPU_SUPPORTS_32BIT_KERNEL
1185 bool
1186config CPU_SUPPORTS_64BIT_KERNEL
1187 bool
1188
1189menu "Kernel type"
1190
1191choice
1192
1193 prompt "Kernel code model"
1194 help
1195 You should only select this option if you have a workload that
1196 actually benefits from 64-bit processing or if your machine has
1197 large memory. You will only be presented a single option in this
1198 menu if your system does not support both 32-bit and 64-bit kernels.
1199
1200config 32BIT
1201 bool "32-bit kernel"
1202 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1203 select TRAD_SIGNALS
1204 help
1205 Select this option if you want to build a 32-bit kernel.
1206config 64BIT
1207 bool "64-bit kernel"
1208 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1209 help
1210 Select this option if you want to build a 64-bit kernel.
1211
1212endchoice
1213
1da177e4
LT
1214choice
1215 prompt "Kernel page size"
1216 default PAGE_SIZE_4KB
1217
1218config PAGE_SIZE_4KB
1219 bool "4kB"
1220 help
1221 This option select the standard 4kB Linux page size. On some
1222 R3000-family processors this is the only available page size. Using
1223 4kB page size will minimize memory consumption and is therefore
1224 recommended for low memory systems.
1225
1226config PAGE_SIZE_8KB
1227 bool "8kB"
1228 depends on EXPERIMENTAL && CPU_R8000
1229 help
1230 Using 8kB page size will result in higher performance kernel at
1231 the price of higher memory consumption. This option is available
1232 only on the R8000 processor. Not that at the time of this writing
1233 this option is still high experimental; there are also issues with
1234 compatibility of user applications.
1235
1236config PAGE_SIZE_16KB
1237 bool "16kB"
714bfad6 1238 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1239 help
1240 Using 16kB page size will result in higher performance kernel at
1241 the price of higher memory consumption. This option is available on
714bfad6
RB
1242 all non-R3000 family processors. Note that you will need a suitable
1243 Linux distribution to support this.
1da177e4
LT
1244
1245config PAGE_SIZE_64KB
1246 bool "64kB"
1247 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1248 help
1249 Using 64kB page size will result in higher performance kernel at
1250 the price of higher memory consumption. This option is available on
1251 all non-R3000 family processor. Not that at the time of this
714bfad6 1252 writing this option is still high experimental.
1da177e4
LT
1253
1254endchoice
1255
1256config BOARD_SCACHE
1257 bool
1258
1259config IP22_CPU_SCACHE
1260 bool
1261 select BOARD_SCACHE
1262
9318c51a
CD
1263#
1264# Support for a MIPS32 / MIPS64 style S-caches
1265#
1266config MIPS_CPU_SCACHE
1267 bool
1268 select BOARD_SCACHE
1269
1da177e4
LT
1270config R5000_CPU_SCACHE
1271 bool
1272 select BOARD_SCACHE
1273
1274config RM7000_CPU_SCACHE
1275 bool
1276 select BOARD_SCACHE
1277
1278config SIBYTE_DMA_PAGEOPS
1279 bool "Use DMA to clear/copy pages"
1280 depends on CPU_SB1
1281 help
1282 Instead of using the CPU to zero and copy pages, use a Data Mover
1283 channel. These DMA channels are otherwise unused by the standard
1284 SiByte Linux port. Seems to give a small performance benefit.
1285
1286config CPU_HAS_PREFETCH
c8094b53 1287 bool
1da177e4 1288
340ee4b9
RB
1289choice
1290 prompt "MIPS MT options"
f41ae0b2
RB
1291
1292config MIPS_MT_DISABLED
1293 bool "Disable multithreading support."
1294 help
1295 Use this option if your workload can't take advantage of
1296 MIPS hardware multithreading support. On systems that don't have
1297 the option of an MT-enabled processor this option will be the only
1298 option in this menu.
340ee4b9 1299
59d6ab86
RB
1300config MIPS_MT_SMP
1301 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1302 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1303 select CPU_MIPSR2_IRQ_VI
d725cf38 1304 select CPU_MIPSR2_IRQ_EI
f7062ddb 1305 select CPU_MIPSR2_SRS
f41ae0b2 1306 select MIPS_MT
f510aa3b 1307 select NR_CPUS_DEFAULT_2
41c594ab 1308 select SMP
73b76c78 1309 select SYS_SUPPORTS_SMP
f41ae0b2 1310 help
59d6ab86
RB
1311 This is a kernel model which is also known a VSMP or lately
1312 has been marketesed into SMVP.
41c594ab 1313
59d6ab86
RB
1314config MIPS_MT_SMTC
1315 bool "SMTC: Use all TCs on all VPEs for SMP"
1316 depends on CPU_MIPS32_R2
1317 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2
RB
1318 depends on SYS_SUPPORTS_MULTITHREADING
1319 select CPU_MIPSR2_IRQ_VI
d725cf38 1320 select CPU_MIPSR2_IRQ_EI
f41ae0b2
RB
1321 select CPU_MIPSR2_SRS
1322 select MIPS_MT
130e2fb7 1323 select NR_CPUS_DEFAULT_8
340ee4b9 1324 select SMP
73b76c78 1325 select SYS_SUPPORTS_SMP
f41ae0b2 1326 help
59d6ab86
RB
1327 This is a kernel model which is known a SMTC or lately has been
1328 marketesed into SMVP.
340ee4b9 1329
340ee4b9
RB
1330endchoice
1331
f41ae0b2
RB
1332config MIPS_MT
1333 bool
1334
1335config SYS_SUPPORTS_MULTITHREADING
1336 bool
1337
f088fc84
RB
1338config MIPS_MT_FPAFF
1339 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1340 default y
07cc0c9e
RB
1341 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1342
1343config MIPS_VPE_LOADER
1344 bool "VPE loader support."
1345 depends on SYS_SUPPORTS_MULTITHREADING
1346 select CPU_MIPSR2_IRQ_VI
1347 select CPU_MIPSR2_IRQ_EI
1348 select CPU_MIPSR2_SRS
1349 select MIPS_MT
1350 help
1351 Includes a loader for loading an elf relocatable object
1352 onto another VPE and running it.
f088fc84 1353
ac8be955
RB
1354config MIPS_MT_SMTC_INSTANT_REPLAY
1355 bool "Low-latency Dispatch of Deferred SMTC IPIs"
619af723 1356 depends on MIPS_MT_SMTC && !PREEMPT
ac8be955
RB
1357 default y
1358 help
1359 SMTC pseudo-interrupts between TCs are deferred and queued
1360 if the target TC is interrupt-inhibited (IXMT). In the first
1361 SMTC prototypes, these queued IPIs were serviced on return
1362 to user mode, or on entry into the kernel idle loop. The
1363 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1364 processing, which adds runtime overhead (hence the option to turn
1365 it off), but ensures that IPIs are handled promptly even under
1366 heavy I/O interrupt load.
1367
0db34215
KK
1368config MIPS_MT_SMTC_IM_BACKSTOP
1369 bool "Use per-TC register bits as backstop for inhibited IM bits"
1370 depends on MIPS_MT_SMTC
1371 default y
1372 help
1373 To support multiple TC microthreads acting as "CPUs" within
1374 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1375 during interrupt handling. To support legacy drivers and interrupt
1376 controller management code, SMTC has a "backstop" to track and
1377 if necessary restore the interrupt mask. This has some performance
1378 impact on interrupt service overhead. Disable it only if you know
1379 what you are doing.
1380
e01402b1
RB
1381config MIPS_VPE_LOADER_TOM
1382 bool "Load VPE program into memory hidden from linux"
1383 depends on MIPS_VPE_LOADER
1384 default y
1385 help
1386 The loader can use memory that is present but has been hidden from
1387 Linux using the kernel command line option "mem=xxMB". It's up to
1388 you to ensure the amount you put in the option and the space your
1389 program requires is less or equal to the amount physically present.
1390
1391# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1392config MIPS_VPE_APSP_API
5e83d430
RB
1393 bool "Enable support for AP/SP API (RTLX)"
1394 depends on MIPS_VPE_LOADER
1395 help
e01402b1 1396
2600990e
RB
1397config MIPS_APSP_KSPD
1398 bool "Enable KSPD"
1399 depends on MIPS_VPE_APSP_API
1400 default y
1401 help
1402 KSPD is a kernel daemon that accepts syscall requests from the SP
1403 side, actions them and returns the results. It also handles the
1404 "exit" syscall notifying other kernel modules the SP program is
1405 exiting. You probably want to say yes here.
1406
1da177e4
LT
1407config SB1_PASS_1_WORKAROUNDS
1408 bool
1409 depends on CPU_SB1_PASS_1
1410 default y
1411
1412config SB1_PASS_2_WORKAROUNDS
1413 bool
1414 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1415 default y
1416
1417config SB1_PASS_2_1_WORKAROUNDS
1418 bool
1419 depends on CPU_SB1 && CPU_SB1_PASS_2
1420 default y
1421
1422config 64BIT_PHYS_ADDR
d806cb2b 1423 bool
1da177e4 1424
1da177e4 1425config CPU_HAS_LLSC
f7062ddb 1426 bool
1da177e4 1427
9693a853
FBH
1428config CPU_HAS_SMARTMIPS
1429 depends on SYS_SUPPORTS_SMARTMIPS
1430 bool "Support for the SmartMIPS ASE"
1431 help
1432 SmartMIPS is a extension of the MIPS32 architecture aimed at
1433 increased security at both hardware and software level for
1434 smartcards. Enabling this option will allow proper use of the
1435 SmartMIPS instructions by Linux applications. However a kernel with
1436 this option will not work on a MIPS core without SmartMIPS core. If
1437 you don't know you probably don't have SmartMIPS and should say N
1438 here.
1439
1da177e4 1440config CPU_HAS_WB
f7062ddb 1441 bool
e01402b1 1442
2a21c730
FZ
1443config 64BIT_CONTEXT
1444 bool "Save 64bit integer registers"
1445 depends on 32BIT && CPU_LOONGSON2
1446 help
1447 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1448 registers can still be accessed as 64bit, mainly for multimedia
1449 instructions. We must have all 64bit save/restored to make sure
1450 those instructions to get correct result.
1451
f41ae0b2
RB
1452#
1453# Vectored interrupt mode is an R2 feature
1454#
e01402b1 1455config CPU_MIPSR2_IRQ_VI
f41ae0b2 1456 bool
e01402b1 1457
f41ae0b2
RB
1458#
1459# Extended interrupt mode is an R2 feature
1460#
e01402b1 1461config CPU_MIPSR2_IRQ_EI
f41ae0b2 1462 bool
e01402b1 1463
f41ae0b2
RB
1464#
1465# Shadow registers are an R2 feature
1466#
e01402b1 1467config CPU_MIPSR2_SRS
f41ae0b2 1468 bool
e01402b1 1469
1da177e4
LT
1470config CPU_HAS_SYNC
1471 bool
1472 depends on !CPU_R3000
1473 default y
1474
797798c1
RB
1475#
1476# Use the generic interrupt handling code in kernel/irq/:
1477#
1478config GENERIC_HARDIRQS
1479 bool
1480 default y
1481
1482config GENERIC_IRQ_PROBE
1483 bool
1484 default y
1485
0d7012a9 1486config IRQ_PER_CPU
0d7012a9 1487 bool
0d7012a9 1488
1da177e4
LT
1489#
1490# - Highmem only makes sense for the 32-bit kernel.
1491# - The current highmem code will only work properly on physically indexed
1492# caches such as R3000, SB1, R7000 or those that look like they're virtually
1493# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1494# moment we protect the user and offer the highmem option only on machines
1495# where it's known to be safe. This will not offer highmem on a few systems
1496# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1497# indexed CPUs but we're playing safe.
797798c1
RB
1498# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1499# know they might have memory configurations that could make use of highmem
1500# support.
1da177e4
LT
1501#
1502config HIGHMEM
1503 bool "High Memory Support"
797798c1
RB
1504 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1505
1506config CPU_SUPPORTS_HIGHMEM
1507 bool
1508
1509config SYS_SUPPORTS_HIGHMEM
1510 bool
1da177e4 1511
9693a853
FBH
1512config SYS_SUPPORTS_SMARTMIPS
1513 bool
1514
b4819b59
YY
1515config ARCH_FLATMEM_ENABLE
1516 def_bool y
1517 depends on !NUMA
1518
d8cb4e11
RB
1519config ARCH_DISCONTIGMEM_ENABLE
1520 bool
1521 default y if SGI_IP27
1522 help
3dde6ad8 1523 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1524 for architectures which are either NUMA (Non-Uniform Memory Access)
1525 or have huge holes in the physical address space for other reasons.
1526 See <file:Documentation/vm/numa> for more.
1527
31473747
AN
1528config ARCH_SPARSEMEM_ENABLE
1529 bool
7de58fab 1530 select SPARSEMEM_STATIC
31473747 1531
d8cb4e11
RB
1532config NUMA
1533 bool "NUMA Support"
1534 depends on SYS_SUPPORTS_NUMA
1535 help
1536 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1537 Access). This option improves performance on systems with more
1538 than two nodes; on two node systems it is generally better to
1539 leave it disabled; on single node systems disable this option
1540 disabled.
1541
1542config SYS_SUPPORTS_NUMA
1543 bool
1544
c80d79d7
YG
1545config NODES_SHIFT
1546 int
1547 default "6"
1548 depends on NEED_MULTIPLE_NODES
1549
b4819b59
YY
1550source "mm/Kconfig"
1551
1da177e4
LT
1552config SMP
1553 bool "Multi-Processing support"
e73ea273 1554 depends on SYS_SUPPORTS_SMP
b4b30a5a 1555 select IRQ_PER_CPU
e73ea273 1556 help
1da177e4
LT
1557 This enables support for systems with more than one CPU. If you have
1558 a system with only one CPU, like most personal computers, say N. If
1559 you have a system with more than one CPU, say Y.
1560
1561 If you say N here, the kernel will run on single and multiprocessor
1562 machines, but will use only one CPU of a multiprocessor machine. If
1563 you say Y here, the kernel will run on many, but not all,
1564 singleprocessor machines. On a singleprocessor machine, the kernel
1565 will run faster if you say N here.
1566
1567 People using multiprocessor machines who say Y here should also say
1568 Y to "Enhanced Real Time Clock Support", below.
1569
1570 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1571 available at <http://www.tldp.org/docs.html#howto>.
1572
1573 If you don't know what to do here, say N.
1574
e73ea273
RB
1575config SYS_SUPPORTS_SMP
1576 bool
1577
72ede9b1
AN
1578config NR_CPUS_DEFAULT_1
1579 bool
1580
130e2fb7
RB
1581config NR_CPUS_DEFAULT_2
1582 bool
1583
1584config NR_CPUS_DEFAULT_4
1585 bool
1586
1587config NR_CPUS_DEFAULT_8
1588 bool
1589
1590config NR_CPUS_DEFAULT_16
1591 bool
1592
1593config NR_CPUS_DEFAULT_32
1594 bool
1595
1596config NR_CPUS_DEFAULT_64
1597 bool
1598
1da177e4
LT
1599config NR_CPUS
1600 int "Maximum number of CPUs (2-64)"
72ede9b1 1601 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1602 depends on SMP
72ede9b1 1603 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1604 default "2" if NR_CPUS_DEFAULT_2
1605 default "4" if NR_CPUS_DEFAULT_4
1606 default "8" if NR_CPUS_DEFAULT_8
1607 default "16" if NR_CPUS_DEFAULT_16
1608 default "32" if NR_CPUS_DEFAULT_32
1609 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1610 help
1611 This allows you to specify the maximum number of CPUs which this
1612 kernel will support. The maximum supported value is 32 for 32-bit
1613 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1614 sense is 1 for Qemu (useful only for kernel debugging purposes)
1615 and 2 for all others.
1da177e4
LT
1616
1617 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1618 approximately eight kilobytes to the kernel image. For best
1619 performance should round up your number of processors to the next
1620 power of two.
1da177e4 1621
1723b4a3
AN
1622#
1623# Timer Interrupt Frequency Configuration
1624#
1625
1626choice
1627 prompt "Timer frequency"
1628 default HZ_250
1629 help
1630 Allows the configuration of the timer frequency.
1631
1632 config HZ_48
1633 bool "48 HZ" if SYS_SUPPORTS_48HZ
1634
1635 config HZ_100
1636 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1637
1638 config HZ_128
1639 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1640
1641 config HZ_250
1642 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1643
1644 config HZ_256
1645 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1646
1647 config HZ_1000
1648 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1649
1650 config HZ_1024
1651 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1652
1653endchoice
1654
1655config SYS_SUPPORTS_48HZ
1656 bool
1657
1658config SYS_SUPPORTS_100HZ
1659 bool
1660
1661config SYS_SUPPORTS_128HZ
1662 bool
1663
1664config SYS_SUPPORTS_250HZ
1665 bool
1666
1667config SYS_SUPPORTS_256HZ
1668 bool
1669
1670config SYS_SUPPORTS_1000HZ
1671 bool
1672
1673config SYS_SUPPORTS_1024HZ
1674 bool
1675
1676config SYS_SUPPORTS_ARBIT_HZ
1677 bool
1678 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1679 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1680 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1681 !SYS_SUPPORTS_1024HZ
1682
1683config HZ
1684 int
1685 default 48 if HZ_48
1686 default 100 if HZ_100
1687 default 128 if HZ_128
1688 default 250 if HZ_250
1689 default 256 if HZ_256
1690 default 1000 if HZ_1000
1691 default 1024 if HZ_1024
1692
e80de850 1693source "kernel/Kconfig.preempt"
1da177e4 1694
1da177e4
LT
1695config MIPS_INSANE_LARGE
1696 bool "Support for large 64-bit configurations"
875d43e7 1697 depends on CPU_R10000 && 64BIT
1da177e4
LT
1698 help
1699 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1700 previous 64-bit processors which only supported 40 bit / 1TB. If you
1701 need processes of more than 1TB virtual address space, say Y here.
1702 This will result in additional memory usage, so it is not
1703 recommended for normal users.
1704
ea6e942b
AN
1705config KEXEC
1706 bool "Kexec system call (EXPERIMENTAL)"
1707 depends on EXPERIMENTAL
1708 help
1709 kexec is a system call that implements the ability to shutdown your
1710 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 1711 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
1712 you can start any kernel with it, not just Linux.
1713
1714 The name comes from the similiarity to the exec system call.
1715
1716 It is an ongoing process to be certain the hardware in a machine
1717 is properly shutdown, so do not be surprised if this code does not
1718 initially work for you. It may help to enable device hotplugging
1719 support. As of this writing the exact hardware interface is
1720 strongly in flux, so no good recommendation can be made.
1721
1722config SECCOMP
1723 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 1724 depends on PROC_FS
ea6e942b
AN
1725 default y
1726 help
1727 This kernel feature is useful for number crunching applications
1728 that may need to compute untrusted bytecode during their
1729 execution. By using pipes or other transports made available to
1730 the process as file descriptors supporting the read/write
1731 syscalls, it's possible to isolate those applications in
1732 their own address space using seccomp. Once seccomp is
1733 enabled via /proc/<pid>/seccomp, it cannot be disabled
1734 and the task is only allowed to execute a few safe syscalls
1735 defined by each seccomp mode.
1736
1737 If unsure, say Y. Only embedded should say N here.
1738
5e83d430
RB
1739endmenu
1740
1da177e4
LT
1741config RWSEM_GENERIC_SPINLOCK
1742 bool
1743 default y
1744
1df0f0ff
AN
1745config LOCKDEP_SUPPORT
1746 bool
1747 default y
1748
1749config STACKTRACE_SUPPORT
1750 bool
1751 default y
1752
b6c3539b
RB
1753source "init/Kconfig"
1754
1da177e4
LT
1755menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1756
5e83d430
RB
1757config HW_HAS_EISA
1758 bool
1da177e4
LT
1759config HW_HAS_PCI
1760 bool
1761
1762config PCI
1763 bool "Support for PCI controller"
1764 depends on HW_HAS_PCI
1765 help
1766 Find out whether you have a PCI motherboard. PCI is the name of a
1767 bus system, i.e. the way the CPU talks to the other stuff inside
1768 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1769 say Y, otherwise N.
1770
1771 The PCI-HOWTO, available from
1772 <http://www.tldp.org/docs.html#howto>, contains valuable
1773 information about which PCI hardware does work under Linux and which
1774 doesn't.
1775
1776config PCI_DOMAINS
1777 bool
1778 depends on PCI
1779
1780source "drivers/pci/Kconfig"
1781
1782#
1783# ISA support is now enabled via select. Too many systems still have the one
1784# or other ISA chip on the board that users don't know about so don't expect
1785# users to choose the right thing ...
1786#
1787config ISA
1788 bool
1789
1790config EISA
1791 bool "EISA support"
5e83d430 1792 depends on HW_HAS_EISA
1da177e4 1793 select ISA
aa414dff 1794 select GENERIC_ISA_DMA
1da177e4
LT
1795 ---help---
1796 The Extended Industry Standard Architecture (EISA) bus was
1797 developed as an open alternative to the IBM MicroChannel bus.
1798
1799 The EISA bus provided some of the features of the IBM MicroChannel
1800 bus while maintaining backward compatibility with cards made for
1801 the older ISA bus. The EISA bus saw limited use between 1988 and
1802 1995 when it was made obsolete by the PCI bus.
1803
1804 Say Y here if you are building a kernel for an EISA-based machine.
1805
1806 Otherwise, say N.
1807
1808source "drivers/eisa/Kconfig"
1809
1810config TC
1811 bool "TURBOchannel support"
1812 depends on MACH_DECSTATION
1813 help
1814 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1815 processors. Documentation on writing device drivers for TurboChannel
1816 is available at:
1817 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1818
1819#config ACCESSBUS
1820# bool "Access.Bus support"
1821# depends on TC
1822
1823config MMU
1824 bool
1825 default y
1826
de61b542 1827config PCSPEAKER
e5c6c8e4
MN
1828 bool
1829
1da177e4
LT
1830source "drivers/pcmcia/Kconfig"
1831
1832source "drivers/pci/hotplug/Kconfig"
1833
1834endmenu
1835
1836menu "Executable file formats"
1837
1838source "fs/Kconfig.binfmt"
1839
1840config TRAD_SIGNALS
1841 bool
1da177e4
LT
1842
1843config BUILD_ELF64
1844 bool "Use 64-bit ELF format for building"
875d43e7 1845 depends on 64BIT
1da177e4
LT
1846 help
1847 A 64-bit kernel is usually built using the 64-bit ELF binary object
1848 format as it's one that allows arbitrary 64-bit constructs. For
1849 kernels that are loaded within the KSEG compatibility segments the
1850 32-bit ELF format can optionally be used resulting in a somewhat
1851 smaller binary, but this option is not explicitly supported by the
1852 toolchain and since binutils 2.14 it does not even work at all.
1853
1854 Say Y to use the 64-bit format or N to use the 32-bit one.
1855
1856 If unsure say Y.
1857
1858config BINFMT_IRIX
1859 bool "Include IRIX binary compatibility"
5e83d430 1860 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1da177e4
LT
1861
1862config MIPS32_COMPAT
1863 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 1864 depends on 64BIT
1da177e4
LT
1865 help
1866 Select this option if you want Linux/MIPS 32-bit binary
1867 compatibility. Since all software available for Linux/MIPS is
1868 currently 32-bit you should say Y here.
1869
1870config COMPAT
1871 bool
1872 depends on MIPS32_COMPAT
1873 default y
1874
05e43966
AN
1875config SYSVIPC_COMPAT
1876 bool
1877 depends on COMPAT && SYSVIPC
1878 default y
1879
1da177e4
LT
1880config MIPS32_O32
1881 bool "Kernel support for o32 binaries"
1882 depends on MIPS32_COMPAT
1883 help
1884 Select this option if you want to run o32 binaries. These are pure
1885 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1886 existing binaries are in this format.
1887
1888 If unsure, say Y.
1889
1890config MIPS32_N32
1891 bool "Kernel support for n32 binaries"
1892 depends on MIPS32_COMPAT
1893 help
1894 Select this option if you want to run n32 binaries. These are
1895 64-bit binaries using 32-bit quantities for addressing and certain
1896 data that would normally be 64-bit. They are used in special
1897 cases.
1898
1899 If unsure, say N.
1900
1901config BINFMT_ELF32
1902 bool
1903 default y if MIPS32_O32 || MIPS32_N32
1904
2116245e
RB
1905endmenu
1906
1907menu "Power management options"
1908
1909source "kernel/power/Kconfig"
952fa954 1910
1da177e4
LT
1911endmenu
1912
d5950b43
SR
1913source "net/Kconfig"
1914
1da177e4
LT
1915source "drivers/Kconfig"
1916
1917source "fs/Kconfig"
1918
5e83d430
RB
1919source "arch/mips/oprofile/Kconfig"
1920
1da177e4
LT
1921source "arch/mips/Kconfig.debug"
1922
1923source "security/Kconfig"
1924
1925source "crypto/Kconfig"
1926
1927source "lib/Kconfig"