Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
[deliverable/linux.git] / arch / mips / Kconfig
CommitLineData
1da177e4
LT
1config MIPS
2 bool
3 default y
ec7748b5 4 select HAVE_IDE
42d4b839 5 select HAVE_OPROFILE
88547001 6 select HAVE_ARCH_KGDB
1da177e4
LT
7 # Horrible source of confusion. Die, die, die ...
8 select EMBEDDED
90b02340 9 select RTC_LIB
1da177e4 10
875d43e7
RB
11mainmenu "Linux/MIPS Kernel Configuration"
12
1da177e4
LT
13menu "Machine selection"
14
5ac6da66
CL
15config ZONE_DMA
16 bool
5ac6da66 17
5e83d430
RB
18choice
19 prompt "System type"
20 default SGI_IP22
1da177e4 21
c3543e25
YY
22config MACH_ALCHEMY
23 bool "Alchemy processor based machines"
1da177e4 24
35189fad 25config BASLER_EXCITE
be91589e 26 bool "Basler eXcite smart camera"
42f77542 27 select CEVT_R4K
940f6b48 28 select CSRC_R4K
35189fad
RB
29 select DMA_COHERENT
30 select HW_HAS_PCI
31 select IRQ_CPU
32 select IRQ_CPU_RM7K
33 select IRQ_CPU_RM9K
663c3d90 34 select MIPS_RM9122
35189fad
RB
35 select SYS_HAS_CPU_RM9000
36 select SYS_SUPPORTS_32BIT_KERNEL
35189fad
RB
37 select SYS_SUPPORTS_BIG_ENDIAN
38 help
39 The eXcite is a smart camera platform manufactured by
be91589e 40 Basler Vision Technologies AG.
35189fad 41
1c0c13eb
AJ
42config BCM47XX
43 bool "BCM47XX based boards"
42f77542 44 select CEVT_R4K
940f6b48 45 select CSRC_R4K
1c0c13eb
AJ
46 select DMA_NONCOHERENT
47 select HW_HAS_PCI
48 select IRQ_CPU
49 select SYS_HAS_CPU_MIPS32_R1
50 select SYS_SUPPORTS_32BIT_KERNEL
51 select SYS_SUPPORTS_LITTLE_ENDIAN
52 select SSB
53 select SSB_DRIVER_MIPS
2f02c15a 54 select SSB_DRIVER_EXTIF
b06f3e19 55 select SSB_EMBEDDED
2f02c15a 56 select SSB_PCICORE_HOSTMODE if PCI
1c0c13eb 57 select GENERIC_GPIO
25e5fb97
AJ
58 select SYS_HAS_EARLY_PRINTK
59 select CFE
1c0c13eb
AJ
60 help
61 Support for BCM47XX based boards
62
1da177e4 63config MIPS_COBALT
3fa986fa 64 bool "Cobalt Server"
42f77542 65 select CEVT_R4K
940f6b48 66 select CSRC_R4K
1097c6ac 67 select CEVT_GT641XX
1da177e4
LT
68 select DMA_NONCOHERENT
69 select HW_HAS_PCI
d865bea4 70 select I8253
1da177e4
LT
71 select I8259
72 select IRQ_CPU
d5ab1a69 73 select IRQ_GT641XX
252161ec 74 select PCI_GT64XXX_PCI0
7cf8053b 75 select SYS_HAS_CPU_NEVADA
0a22e0d4 76 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 77 select SYS_SUPPORTS_32BIT_KERNEL
0e8774b6 78 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 79 select SYS_SUPPORTS_LITTLE_ENDIAN
9fd32cfb 80 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
81
82config MACH_DECSTATION
3fa986fa 83 bool "DECstations"
1da177e4 84 select BOOT_ELF32
6457d9fc 85 select CEVT_DS1287
42f77542 86 select CEVT_R4K
4247417d 87 select CSRC_IOASIC
940f6b48 88 select CSRC_R4K
20d60d99
MR
89 select CPU_DADDI_WORKAROUNDS if 64BIT
90 select CPU_R4000_WORKAROUNDS if 64BIT
91 select CPU_R4400_WORKAROUNDS if 64BIT
1da177e4 92 select DMA_NONCOHERENT
d388d685 93 select NO_IOPORT
1da177e4 94 select IRQ_CPU
7cf8053b
RB
95 select SYS_HAS_CPU_R3000
96 select SYS_HAS_CPU_R4X00
ed5ba2fb
YY
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
5e83d430 99 select SYS_SUPPORTS_LITTLE_ENDIAN
1723b4a3
AN
100 select SYS_SUPPORTS_128HZ
101 select SYS_SUPPORTS_256HZ
102 select SYS_SUPPORTS_1024HZ
5e83d430 103 help
1da177e4
LT
104 This enables support for DEC's MIPS based workstations. For details
105 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
106 DECstation porting pages on <http://decstation.unix-ag.org/>.
107
108 If you have one of the following DECstation Models you definitely
109 want to choose R4xx0 for the CPU Type:
110
9308816c
RB
111 DECstation 5000/50
112 DECstation 5000/150
113 DECstation 5000/260
114 DECsystem 5900/260
1da177e4
LT
115
116 otherwise choose R3000.
117
5e83d430 118config MACH_JAZZ
3fa986fa 119 bool "Jazz family of machines"
5e83d430
RB
120 select ARC
121 select ARC32
122 select ARCH_MAY_HAVE_PC_FDC
42f77542 123 select CEVT_R4K
940f6b48 124 select CSRC_R4K
e2defae5 125 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
5e83d430 126 select GENERIC_ISA_DMA
ea202c63 127 select IRQ_CPU
d865bea4 128 select I8253
5e83d430
RB
129 select I8259
130 select ISA
7cf8053b 131 select SYS_HAS_CPU_R4X00
5e83d430
RB
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
1723b4a3 134 select SYS_SUPPORTS_100HZ
9fd32cfb 135 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4 136 help
5e83d430
RB
137 This a family of machines based on the MIPS R4030 chipset which was
138 used by several vendors to build RISC/os and Windows NT workstations.
139 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
140 Olivetti M700-10 workstations.
141
1f21d2bd
BM
142config LASAT
143 bool "LASAT Networks platforms"
42f77542 144 select CEVT_R4K
940f6b48 145 select CSRC_R4K
1f21d2bd
BM
146 select DMA_NONCOHERENT
147 select SYS_HAS_EARLY_PRINTK
148 select HW_HAS_PCI
a5ccfe5c 149 select IRQ_CPU
1f21d2bd
BM
150 select PCI_GT64XXX_PCI0
151 select MIPS_NILE4
152 select R5000_CPU_SCACHE
153 select SYS_HAS_CPU_R5000
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
156 select SYS_SUPPORTS_LITTLE_ENDIAN
157 select GENERIC_HARDIRQS_NO__DO_IRQ
158
ade299d8
YY
159config LEMOTE_FULONG
160 bool "Lemote Fulong mini-PC"
161 select ARCH_SPARSEMEM_ENABLE
42f77542 162 select CEVT_R4K
940f6b48 163 select CSRC_R4K
ade299d8
YY
164 select SYS_HAS_CPU_LOONGSON2
165 select DMA_NONCOHERENT
166 select BOOT_ELF32
167 select BOARD_SCACHE
168 select HAVE_STD_PC_SERIAL_PORT
169 select HW_HAS_PCI
170 select I8259
171 select ISA
172 select IRQ_CPU
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_HIGHMEM
177 select SYS_HAS_EARLY_PRINTK
178 select GENERIC_HARDIRQS_NO__DO_IRQ
23dd6d35 179 select GENERIC_ISA_DMA_SUPPORT_BROKEN
ade299d8
YY
180 select CPU_HAS_WB
181 help
182 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
183 an FPGA northbridge
184
1da177e4 185config MIPS_MALTA
3fa986fa 186 bool "MIPS Malta board"
61ed242d 187 select ARCH_MAY_HAVE_PC_FDC
1da177e4 188 select BOOT_ELF32
fa71c960 189 select BOOT_RAW
42f77542 190 select CEVT_R4K
940f6b48 191 select CSRC_R4K
1da177e4
LT
192 select DMA_NONCOHERENT
193 select GENERIC_ISA_DMA
aa414dff 194 select IRQ_CPU
39b8d525 195 select IRQ_GIC
1da177e4 196 select HW_HAS_PCI
d865bea4 197 select I8253
1da177e4 198 select I8259
5e83d430
RB
199 select MIPS_BOARDS_GEN
200 select MIPS_BONITO64
9318c51a 201 select MIPS_CPU_SCACHE
252161ec 202 select PCI_GT64XXX_PCI0
5e83d430 203 select MIPS_MSC
1da177e4 204 select SWAP_IO_SPACE
7cf8053b
RB
205 select SYS_HAS_CPU_MIPS32_R1
206 select SYS_HAS_CPU_MIPS32_R2
207 select SYS_HAS_CPU_MIPS64_R1
208 select SYS_HAS_CPU_NEVADA
209 select SYS_HAS_CPU_RM7000
36a88530 210 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430
RB
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_SUPPORTS_LITTLE_ENDIAN
4a16ff4c 215 select SYS_SUPPORTS_MIPS_CMP if BROKEN # because SYNC_R4K is broken
f41ae0b2 216 select SYS_SUPPORTS_MULTITHREADING
9693a853 217 select SYS_SUPPORTS_SMARTMIPS
1da177e4 218 help
f638d197 219 This enables support for the MIPS Technologies Malta evaluation
1da177e4
LT
220 board.
221
5e83d430 222config MIPS_SIM
3fa986fa 223 bool 'MIPS simulator (MIPSsim)'
42f77542 224 select CEVT_R4K
940f6b48 225 select CSRC_R4K
1da177e4 226 select DMA_NONCOHERENT
36a88530 227 select SYS_HAS_EARLY_PRINTK
1da177e4 228 select IRQ_CPU
9267a30d 229 select BOOT_RAW
7cf8053b
RB
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_HAS_CPU_MIPS32_R2
36a88530 232 select SYS_HAS_EARLY_PRINTK
ed5ba2fb 233 select SYS_SUPPORTS_32BIT_KERNEL
5e83d430 234 select SYS_SUPPORTS_BIG_ENDIAN
f6e2373a 235 select SYS_SUPPORTS_MULTITHREADING
5e83d430 236 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 237 help
5e83d430
RB
238 This option enables support for MIPS Technologies MIPSsim software
239 emulator.
1da177e4 240
cd741b60
SK
241config MACH_EMMA
242 bool "NEC EMMA series based machines"
ade299d8 243
5e83d430 244config MACH_VR41XX
74142d65 245 bool "NEC VR4100 series based machines"
42f77542 246 select CEVT_R4K
940f6b48 247 select CSRC_R4K
7cf8053b 248 select SYS_HAS_CPU_VR41XX
9fd32cfb 249 select GENERIC_HARDIRQS_NO__DO_IRQ
5e83d430 250
edb6310a
DL
251config NXP_STB220
252 bool "NXP STB220 board"
253 select SOC_PNX833X
254 help
255 Support for NXP Semiconductors STB220 Development Board.
256
257config NXP_STB225
258 bool "NXP 225 board"
259 select SOC_PNX833X
260 select SOC_PNX8335
261 help
262 Support for NXP Semiconductors STB225 Development Board.
263
ade299d8 264config PNX8550_JBS
a92b0588 265 bool "NXP PNX8550 based JBS board"
ade299d8
YY
266 select PNX8550
267 select SYS_SUPPORTS_LITTLE_ENDIAN
268
269config PNX8550_STB810
a92b0588 270 bool "NXP PNX8550 based STB810 board"
ade299d8
YY
271 select PNX8550
272 select SYS_SUPPORTS_LITTLE_ENDIAN
273
9267a30d
MSJ
274config PMC_MSP
275 bool "PMC-Sierra MSP chipsets"
276 depends on EXPERIMENTAL
277 select DMA_NONCOHERENT
278 select SWAP_IO_SPACE
279 select NO_EXCEPT_FILL
280 select BOOT_RAW
281 select SYS_HAS_CPU_MIPS32_R1
282 select SYS_HAS_CPU_MIPS32_R2
283 select SYS_SUPPORTS_32BIT_KERNEL
284 select SYS_SUPPORTS_BIG_ENDIAN
9267a30d
MSJ
285 select IRQ_CPU
286 select SERIAL_8250
287 select SERIAL_8250_CONSOLE
288 help
289 This adds support for the PMC-Sierra family of Multi-Service
290 Processor System-On-A-Chips. These parts include a number
291 of integrated peripherals, interfaces and DSPs in addition to
292 a variety of MIPS cores.
293
5e83d430 294config PMC_YOSEMITE
3fa986fa 295 bool "PMC-Sierra Yosemite eval board"
42f77542 296 select CEVT_R4K
940f6b48 297 select CSRC_R4K
5e83d430
RB
298 select DMA_COHERENT
299 select HW_HAS_PCI
300 select IRQ_CPU
301 select IRQ_CPU_RM7K
302 select IRQ_CPU_RM9K
303 select SWAP_IO_SPACE
7cf8053b 304 select SYS_HAS_CPU_RM9000
36a88530 305 select SYS_HAS_EARLY_PRINTK
5e83d430
RB
306 select SYS_SUPPORTS_32BIT_KERNEL
307 select SYS_SUPPORTS_64BIT_KERNEL
308 select SYS_SUPPORTS_BIG_ENDIAN
309 select SYS_SUPPORTS_HIGHMEM
e73ea273 310 select SYS_SUPPORTS_SMP
5e83d430
RB
311 help
312 Yosemite is an evaluation board for the RM9000x2 processor
313 manufactured by PMC-Sierra.
1da177e4 314
1da177e4 315config SGI_IP22
3fa986fa 316 bool "SGI IP22 (Indy/Indigo2)"
1da177e4
LT
317 select ARC
318 select ARC32
319 select BOOT_ELF32
42f77542 320 select CEVT_R4K
940f6b48 321 select CSRC_R4K
e2defae5 322 select DEFAULT_SGI_PARTITION
1da177e4 323 select DMA_NONCOHERENT
5e83d430 324 select HW_HAS_EISA
d865bea4 325 select I8253
68de4803 326 select I8259
1da177e4
LT
327 select IP22_CPU_SCACHE
328 select IRQ_CPU
aa414dff 329 select GENERIC_ISA_DMA_SUPPORT_BROKEN
e2defae5
TB
330 select SGI_HAS_I8042
331 select SGI_HAS_INDYDOG
36e5c21d 332 select SGI_HAS_HAL2
e2defae5
TB
333 select SGI_HAS_SEEQ
334 select SGI_HAS_WD93
335 select SGI_HAS_ZILOG
1da177e4 336 select SWAP_IO_SPACE
7cf8053b
RB
337 select SYS_HAS_CPU_R4X00
338 select SYS_HAS_CPU_R5000
36a88530 339 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
340 select SYS_SUPPORTS_32BIT_KERNEL
341 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 342 select SYS_SUPPORTS_BIG_ENDIAN
1da177e4
LT
343 help
344 This are the SGI Indy, Challenge S and Indigo2, as well as certain
345 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
346 that runs on these, say Y here.
347
348config SGI_IP27
3fa986fa 349 bool "SGI IP27 (Origin200/2000)"
1da177e4
LT
350 select ARC
351 select ARC64
5e83d430 352 select BOOT_ELF64
e2defae5 353 select DEFAULT_SGI_PARTITION
1da177e4 354 select DMA_IP27
36a88530 355 select SYS_HAS_EARLY_PRINTK
1da177e4 356 select HW_HAS_PCI
130e2fb7 357 select NR_CPUS_DEFAULT_64
7cf8053b 358 select SYS_HAS_CPU_R10000
ed5ba2fb 359 select SYS_SUPPORTS_64BIT_KERNEL
5e83d430 360 select SYS_SUPPORTS_BIG_ENDIAN
d8cb4e11 361 select SYS_SUPPORTS_NUMA
1a5c5de1 362 select SYS_SUPPORTS_SMP
e77c232c 363 select GENERIC_HARDIRQS_NO__DO_IRQ
1da177e4
LT
364 help
365 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
366 workstations. To compile a Linux kernel that runs on these, say Y
367 here.
368
e2defae5
TB
369config SGI_IP28
370 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
371 depends on EXPERIMENTAL
372 select ARC
373 select ARC64
374 select BOOT_ELF64
375 select CEVT_R4K
376 select CSRC_R4K
377 select DEFAULT_SGI_PARTITION
378 select DMA_NONCOHERENT
379 select GENERIC_ISA_DMA_SUPPORT_BROKEN
380 select IRQ_CPU
381 select HW_HAS_EISA
382 select I8253
383 select I8259
e2defae5
TB
384 select SGI_HAS_I8042
385 select SGI_HAS_INDYDOG
5b438c44 386 select SGI_HAS_HAL2
e2defae5
TB
387 select SGI_HAS_SEEQ
388 select SGI_HAS_WD93
389 select SGI_HAS_ZILOG
390 select SWAP_IO_SPACE
391 select SYS_HAS_CPU_R10000
392 select SYS_HAS_EARLY_PRINTK
393 select SYS_SUPPORTS_64BIT_KERNEL
394 select SYS_SUPPORTS_BIG_ENDIAN
395 help
396 This is the SGI Indigo2 with R10000 processor. To compile a Linux
397 kernel that runs on these, say Y here.
398
1da177e4 399config SGI_IP32
cfd2afc0 400 bool "SGI IP32 (O2)"
1da177e4
LT
401 select ARC
402 select ARC32
403 select BOOT_ELF32
42f77542 404 select CEVT_R4K
940f6b48 405 select CSRC_R4K
1da177e4
LT
406 select DMA_NONCOHERENT
407 select HW_HAS_PCI
dd67b155 408 select IRQ_CPU
1da177e4
LT
409 select R5000_CPU_SCACHE
410 select RM7000_CPU_SCACHE
7cf8053b
RB
411 select SYS_HAS_CPU_R5000
412 select SYS_HAS_CPU_R10000 if BROKEN
413 select SYS_HAS_CPU_RM7000
dd2f18fe 414 select SYS_HAS_CPU_NEVADA
ed5ba2fb 415 select SYS_SUPPORTS_64BIT_KERNEL
23fbee9d 416 select SYS_SUPPORTS_BIG_ENDIAN
23fbee9d 417 help
5e83d430 418 If you want this kernel to run on SGI O2 workstation, say Y here.
1da177e4 419
ade299d8
YY
420config SIBYTE_CRHINE
421 bool "Sibyte BCM91120C-CRhine"
422 depends on EXPERIMENTAL
9a6dcea1
AI
423 select BOOT_ELF32
424 select DMA_COHERENT
ade299d8 425 select SIBYTE_BCM1120
9a6dcea1 426 select SWAP_IO_SPACE
7cf8053b 427 select SYS_HAS_CPU_SB1
9a6dcea1
AI
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_LITTLE_ENDIAN
430
ade299d8
YY
431config SIBYTE_CARMEL
432 bool "Sibyte BCM91120x-Carmel"
433 depends on EXPERIMENTAL
5e83d430 434 select BOOT_ELF32
1da177e4 435 select DMA_COHERENT
ade299d8 436 select SIBYTE_BCM1120
5e83d430 437 select SWAP_IO_SPACE
7cf8053b 438 select SYS_HAS_CPU_SB1
81731f79 439 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 440 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 441
ade299d8
YY
442config SIBYTE_CRHONE
443 bool "Sibyte BCM91125C-CRhone"
5e83d430
RB
444 depends on EXPERIMENTAL
445 select BOOT_ELF32
446 select DMA_COHERENT
ade299d8 447 select SIBYTE_BCM1125
5e83d430 448 select SWAP_IO_SPACE
7cf8053b 449 select SYS_HAS_CPU_SB1
5e83d430 450 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 451 select SYS_SUPPORTS_HIGHMEM
5e83d430 452 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 453
5e83d430 454config SIBYTE_RHONE
3fa986fa 455 bool "Sibyte BCM91125E-Rhone"
5e83d430
RB
456 depends on EXPERIMENTAL
457 select BOOT_ELF32
458 select DMA_COHERENT
459 select SIBYTE_BCM1125H
460 select SWAP_IO_SPACE
7cf8053b 461 select SYS_HAS_CPU_SB1
5e83d430
RB
462 select SYS_SUPPORTS_BIG_ENDIAN
463 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 464
ade299d8
YY
465config SIBYTE_SWARM
466 bool "Sibyte BCM91250A-SWARM"
5e83d430 467 select BOOT_ELF32
26a940e2 468 select DMA_COHERENT
ade299d8
YY
469 select NR_CPUS_DEFAULT_2
470 select SIBYTE_SB1250
5e83d430 471 select SWAP_IO_SPACE
7cf8053b 472 select SYS_HAS_CPU_SB1
5e83d430 473 select SYS_SUPPORTS_BIG_ENDIAN
ade299d8 474 select SYS_SUPPORTS_HIGHMEM
e3ad1c23 475 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 476 select ZONE_DMA32 if 64BIT
e3ad1c23 477
ade299d8
YY
478config SIBYTE_LITTLESUR
479 bool "Sibyte BCM91250C2-LittleSur"
5e83d430
RB
480 depends on EXPERIMENTAL
481 select BOOT_ELF32
482 select DMA_COHERENT
130e2fb7 483 select NR_CPUS_DEFAULT_2
5e83d430
RB
484 select SIBYTE_SB1250
485 select SWAP_IO_SPACE
7cf8053b 486 select SYS_HAS_CPU_SB1
5e83d430
RB
487 select SYS_SUPPORTS_BIG_ENDIAN
488 select SYS_SUPPORTS_HIGHMEM
489 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 490
ade299d8
YY
491config SIBYTE_SENTOSA
492 bool "Sibyte BCM91250E-Sentosa"
5e83d430
RB
493 depends on EXPERIMENTAL
494 select BOOT_ELF32
495 select DMA_COHERENT
130e2fb7 496 select NR_CPUS_DEFAULT_2
5e83d430
RB
497 select SIBYTE_SB1250
498 select SWAP_IO_SPACE
7cf8053b 499 select SYS_HAS_CPU_SB1
5e83d430 500 select SYS_SUPPORTS_BIG_ENDIAN
5e83d430 501 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 502
ade299d8
YY
503config SIBYTE_BIGSUR
504 bool "Sibyte BCM91480B-BigSur"
5e83d430
RB
505 select BOOT_ELF32
506 select DMA_COHERENT
ade299d8 507 select NR_CPUS_DEFAULT_4
ade299d8 508 select SIBYTE_BCM1x80
5e83d430 509 select SWAP_IO_SPACE
7cf8053b 510 select SYS_HAS_CPU_SB1
5e83d430 511 select SYS_SUPPORTS_BIG_ENDIAN
651194f8 512 select SYS_SUPPORTS_HIGHMEM
5e83d430 513 select SYS_SUPPORTS_LITTLE_ENDIAN
cce335ae 514 select ZONE_DMA32 if 64BIT
1da177e4 515
14b36af4
TB
516config SNI_RM
517 bool "SNI RM200/300/400"
4a0312fc
TB
518 select ARC if CPU_LITTLE_ENDIAN
519 select ARC32 if CPU_LITTLE_ENDIAN
231a35d3 520 select SNIPROM if CPU_BIG_ENDIAN
61ed242d 521 select ARCH_MAY_HAVE_PC_FDC
1da177e4 522 select BOOT_ELF32
42f77542 523 select CEVT_R4K
940f6b48 524 select CSRC_R4K
e2defae5 525 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
1da177e4
LT
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA
5e83d430 528 select HW_HAS_EISA
1da177e4 529 select HW_HAS_PCI
c066a32a 530 select IRQ_CPU
d865bea4 531 select I8253
1da177e4
LT
532 select I8259
533 select ISA
4a0312fc 534 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
7cf8053b 535 select SYS_HAS_CPU_R4X00
4a0312fc 536 select SYS_HAS_CPU_R5000
c066a32a 537 select SYS_HAS_CPU_R10000
4a0312fc 538 select R5000_CPU_SCACHE
36a88530 539 select SYS_HAS_EARLY_PRINTK
ed5ba2fb
YY
540 select SYS_SUPPORTS_32BIT_KERNEL
541 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
4a0312fc 542 select SYS_SUPPORTS_BIG_ENDIAN
797798c1 543 select SYS_SUPPORTS_HIGHMEM
5e83d430 544 select SYS_SUPPORTS_LITTLE_ENDIAN
1da177e4 545 help
14b36af4
TB
546 The SNI RM200/300/400 are MIPS-based machines manufactured by
547 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
1da177e4
LT
548 Technology and now in turn merged with Fujitsu. Say Y here to
549 support this machine type.
550
edcaf1a6
AN
551config MACH_TX39XX
552 bool "Toshiba TX39 series based machines"
5e83d430 553
edcaf1a6
AN
554config MACH_TX49XX
555 bool "Toshiba TX49 series based machines"
5e83d430 556
73b4390f
RB
557config MIKROTIK_RB532
558 bool "Mikrotik RB532 boards"
559 select CEVT_R4K
560 select CSRC_R4K
561 select DMA_NONCOHERENT
562 select GENERIC_HARDIRQS_NO__DO_IRQ
563 select HW_HAS_PCI
564 select IRQ_CPU
565 select SYS_HAS_CPU_MIPS32_R1
566 select SYS_SUPPORTS_32BIT_KERNEL
567 select SYS_SUPPORTS_LITTLE_ENDIAN
568 select SWAP_IO_SPACE
569 select BOOT_RAW
d888e25b 570 select ARCH_REQUIRE_GPIOLIB
73b4390f
RB
571 help
572 Support the Mikrotik(tm) RouterBoard 532 series,
573 based on the IDT RC32434 SoC.
574
ade299d8
YY
575config WR_PPMC
576 bool "Wind River PPMC board"
42f77542 577 select CEVT_R4K
940f6b48 578 select CSRC_R4K
ade299d8
YY
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
e8c7c482 600source "arch/mips/alchemy/Kconfig"
9c746edb 601source "arch/mips/basler/excite/Kconfig"
cd741b60 602source "arch/mips/emma/Kconfig"
5e83d430 603source "arch/mips/jazz/Kconfig"
1f21d2bd 604source "arch/mips/lasat/Kconfig"
5e83d430 605source "arch/mips/pmc-sierra/Kconfig"
29c48699 606source "arch/mips/sgi-ip27/Kconfig"
38b18f72 607source "arch/mips/sibyte/Kconfig"
22b1d707 608source "arch/mips/txx9/Kconfig"
5e83d430 609source "arch/mips/vr41xx/Kconfig"
38b18f72 610
5e83d430
RB
611endmenu
612
1da177e4
LT
613config RWSEM_GENERIC_SPINLOCK
614 bool
615 default y
616
617config RWSEM_XCHGADD_ALGORITHM
618 bool
619
f0d1b0b3
DH
620config ARCH_HAS_ILOG2_U32
621 bool
622 default n
623
624config ARCH_HAS_ILOG2_U64
625 bool
626 default n
627
00a58253
RB
628config ARCH_SUPPORTS_OPROFILE
629 bool
630 default y if !MIPS_MT_SMTC
631
3c9ee7ef
AM
632config GENERIC_FIND_NEXT_BIT
633 bool
634 default y
635
636config GENERIC_HWEIGHT
637 bool
638 default y
639
1da177e4
LT
640config GENERIC_CALIBRATE_DELAY
641 bool
642 default y
643
7bcf7717
RB
644config GENERIC_CLOCKEVENTS
645 bool
646 default y
647
8db02010
RB
648config GENERIC_TIME
649 bool
650 default y
651
f5ff0a28
RB
652config GENERIC_CMOS_UPDATE
653 bool
654 default y
655
1cc89038
AN
656config SCHED_NO_NO_OMIT_FRAME_POINTER
657 bool
658 default y
659
e77c232c
FBH
660config GENERIC_HARDIRQS_NO__DO_IRQ
661 bool
662 default n
663
1da177e4
LT
664#
665# Select some configuration options automatically based on user selections.
666#
667config ARC
668 bool
1da177e4 669
61ed242d
RB
670config ARCH_MAY_HAVE_PC_FDC
671 bool
672
9267a30d
MSJ
673config BOOT_RAW
674 bool
675
217dd11e
RB
676config CEVT_BCM1480
677 bool
678
6457d9fc
YY
679config CEVT_DS1287
680 bool
681
1097c6ac
YY
682config CEVT_GT641XX
683 bool
684
42f77542
RB
685config CEVT_R4K
686 bool
687
217dd11e
RB
688config CEVT_SB1250
689 bool
690
229f773e
AN
691config CEVT_TXX9
692 bool
693
217dd11e
RB
694config CSRC_BCM1480
695 bool
696
4247417d
YY
697config CSRC_IOASIC
698 bool
699
940f6b48
RB
700config CSRC_R4K
701 bool
702
217dd11e
RB
703config CSRC_SB1250
704 bool
705
a9aec7fe
AN
706config GPIO_TXX9
707 select GENERIC_GPIO
7444a72e 708 select ARCH_REQUIRE_GPIOLIB
a9aec7fe
AN
709 bool
710
df78b5c8
AJ
711config CFE
712 bool
713
4ce588cd 714config DMA_COHERENT
1da177e4
LT
715 bool
716
4ce588cd 717config DMA_IP27
1da177e4
LT
718 bool
719
4ce588cd
RB
720config DMA_NONCOHERENT
721 bool
722 select DMA_NEED_PCI_MAP_STATE
723
724config DMA_NEED_PCI_MAP_STATE
1da177e4
LT
725 bool
726
727config EARLY_PRINTK
36a88530
RB
728 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
729 depends on SYS_HAS_EARLY_PRINTK
730 default y
731 help
732 This option enables special console drivers which allow the kernel
733 to print messages very early in the bootup process.
734
735 This is useful for kernel debugging when your machine crashes very
490dcc4d
RD
736 early before the console code is initialized. For normal operation,
737 it is not recommended because it looks ugly on some machines and
738 doesn't cooperate with an X server. You should normally say N here,
36a88530
RB
739 unless you want to debug such a crash.
740
741config SYS_HAS_EARLY_PRINTK
1da177e4 742 bool
1da177e4 743
dbb74540
RB
744config HOTPLUG_CPU
745 bool
746 default n
747
1da177e4
LT
748config I8259
749 bool
1da177e4 750
1da177e4
LT
751config MIPS_BONITO64
752 bool
1da177e4
LT
753
754config MIPS_MSC
755 bool
1da177e4 756
1f21d2bd
BM
757config MIPS_NILE4
758 bool
759
1da177e4
LT
760config MIPS_DISABLE_OBSOLETE_IDE
761 bool
762
39b8d525
RB
763config SYNC_R4K
764 bool
765
d388d685
MR
766config NO_IOPORT
767 def_bool n
768
8313da30
RB
769config GENERIC_ISA_DMA
770 bool
771 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
772
aa414dff
RB
773config GENERIC_ISA_DMA_SUPPORT_BROKEN
774 bool
8313da30 775 select GENERIC_ISA_DMA
aa414dff 776
09663335
YY
777config GENERIC_GPIO
778 bool
779
5e83d430 780#
3cb2fccc 781# Endianess selection. Sufficiently obscure so many users don't know what to
5e83d430
RB
782# answer,so we try hard to limit the available choices. Also the use of a
783# choice statement should be more obvious to the user.
784#
785choice
786 prompt "Endianess selection"
1da177e4
LT
787 help
788 Some MIPS machines can be configured for either little or big endian
5e83d430 789 byte order. These modes require different kernels and a different
3cb2fccc 790 Linux distribution. In general there is one preferred byteorder for a
5e83d430 791 particular system but some systems are just as commonly used in the
3dde6ad8 792 one or the other endianness.
5e83d430
RB
793
794config CPU_BIG_ENDIAN
795 bool "Big endian"
796 depends on SYS_SUPPORTS_BIG_ENDIAN
797
798config CPU_LITTLE_ENDIAN
799 bool "Little endian"
800 depends on SYS_SUPPORTS_LITTLE_ENDIAN
801 help
802
803endchoice
804
2116245e
RB
805config SYS_SUPPORTS_APM_EMULATION
806 bool
807
5e83d430
RB
808config SYS_SUPPORTS_BIG_ENDIAN
809 bool
810
811config SYS_SUPPORTS_LITTLE_ENDIAN
812 bool
1da177e4
LT
813
814config IRQ_CPU
815 bool
816
817config IRQ_CPU_RM7K
818 bool
819
5e83d430
RB
820config IRQ_CPU_RM9K
821 bool
822
9267a30d
MSJ
823config IRQ_MSP_SLP
824 bool
825
826config IRQ_MSP_CIC
827 bool
828
8420fd00
AN
829config IRQ_TXX9
830 bool
831
d5ab1a69
YY
832config IRQ_GT641XX
833 bool
834
39b8d525
RB
835config IRQ_GIC
836 bool
837
1da177e4
LT
838config MIPS_BOARDS_GEN
839 bool
1da177e4 840
252161ec 841config PCI_GT64XXX_PCI0
1da177e4 842 bool
1da177e4 843
9267a30d
MSJ
844config NO_EXCEPT_FILL
845 bool
846
663c3d90 847config MIPS_RM9122
848 bool
849 select SERIAL_RM9000
663c3d90 850
edb6310a
DL
851config SOC_PNX833X
852 bool
853 select CEVT_R4K
854 select CSRC_R4K
855 select IRQ_CPU
856 select DMA_NONCOHERENT
857 select SYS_HAS_CPU_MIPS32_R2
858 select SYS_SUPPORTS_32BIT_KERNEL
859 select SYS_SUPPORTS_LITTLE_ENDIAN
860 select SYS_SUPPORTS_BIG_ENDIAN
861 select GENERIC_HARDIRQS_NO__DO_IRQ
862 select GENERIC_GPIO
863 select CPU_MIPSR2_IRQ_VI
864
865config SOC_PNX8335
866 bool
867 select SOC_PNX833X
868
bdf21b18
PP
869config PNX8550
870 bool
871 select SOC_PNX8550
872
873config SOC_PNX8550
874 bool
bdf21b18
PP
875 select DMA_NONCOHERENT
876 select HW_HAS_PCI
b8c2a77c 877 select SYS_HAS_CPU_MIPS32_R1
36a88530 878 select SYS_HAS_EARLY_PRINTK
7cf8053b 879 select SYS_SUPPORTS_32BIT_KERNEL
e77c232c 880 select GENERIC_HARDIRQS_NO__DO_IRQ
4ead1681 881 select GENERIC_GPIO
bdf21b18 882
1da177e4
LT
883config SWAP_IO_SPACE
884 bool
885
355c471f 886config EMMA2RH
887 bool
888 depends on MARKEINS
889 default y
890
663c3d90 891config SERIAL_RM9000
892 bool
893
e2defae5
TB
894config SGI_HAS_INDYDOG
895 bool
896
5b438c44
TB
897config SGI_HAS_HAL2
898 bool
899
e2defae5
TB
900config SGI_HAS_SEEQ
901 bool
902
903config SGI_HAS_WD93
904 bool
905
906config SGI_HAS_ZILOG
907 bool
908
909config SGI_HAS_I8042
910 bool
911
912config DEFAULT_SGI_PARTITION
913 bool
914
5e83d430
RB
915config ARC32
916 bool
917
231a35d3
TB
918config SNIPROM
919 bool
920
1da177e4
LT
921config BOOT_ELF32
922 bool
1da177e4
LT
923
924config MIPS_L1_CACHE_SHIFT
925 int
73b4390f 926 default "4" if MACH_DECSTATION || MIKROTIK_RB532
7e3297dc 927 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
9267a30d 928 default "4" if PMC_MSP4200_EVAL
1da177e4
LT
929 default "5"
930
1da177e4
LT
931config HAVE_STD_PC_SERIAL_PORT
932 bool
933
1da177e4
LT
934config ARC_CONSOLE
935 bool "ARC console support"
e2defae5 936 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1da177e4
LT
937
938config ARC_MEMORY
939 bool
14b36af4 940 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1da177e4
LT
941 default y
942
943config ARC_PROMLIB
944 bool
e2defae5 945 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1da177e4
LT
946 default y
947
948config ARC64
949 bool
1da177e4
LT
950
951config BOOT_ELF64
952 bool
1da177e4 953
1da177e4
LT
954menu "CPU selection"
955
956choice
957 prompt "CPU type"
958 default CPU_R4X00
959
2a21c730
FZ
960config CPU_LOONGSON2
961 bool "Loongson 2"
962 depends on SYS_HAS_CPU_LOONGSON2
963 select CPU_SUPPORTS_32BIT_KERNEL
964 select CPU_SUPPORTS_64BIT_KERNEL
965 select CPU_SUPPORTS_HIGHMEM
966 help
967 The Loongson 2E processor implements the MIPS III instruction set
968 with many extensions.
969
6e760c8d
RB
970config CPU_MIPS32_R1
971 bool "MIPS32 Release 1"
7cf8053b 972 depends on SYS_HAS_CPU_MIPS32_R1
f7062ddb 973 select CPU_HAS_LLSC
6e760c8d 974 select CPU_HAS_PREFETCH
797798c1 975 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 976 select CPU_SUPPORTS_HIGHMEM
1e5f1caa 977 help
5e83d430 978 Choose this option to build a kernel for release 1 or later of the
1e5f1caa
RB
979 MIPS32 architecture. Most modern embedded systems with a 32-bit
980 MIPS processor are based on a MIPS32 processor. If you know the
981 specific type of processor in your system, choose those that one
982 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
983 Release 2 of the MIPS32 architecture is available since several
984 years so chances are you even have a MIPS32 Release 2 processor
985 in which case you should choose CPU_MIPS32_R2 instead for better
986 performance.
987
988config CPU_MIPS32_R2
989 bool "MIPS32 Release 2"
7cf8053b 990 depends on SYS_HAS_CPU_MIPS32_R2
f7062ddb 991 select CPU_HAS_LLSC
1e5f1caa 992 select CPU_HAS_PREFETCH
797798c1 993 select CPU_SUPPORTS_32BIT_KERNEL
ec28f306 994 select CPU_SUPPORTS_HIGHMEM
6e760c8d 995 help
5e83d430 996 Choose this option to build a kernel for release 2 or later of the
6e760c8d
RB
997 MIPS32 architecture. Most modern embedded systems with a 32-bit
998 MIPS processor are based on a MIPS32 processor. If you know the
999 specific type of processor in your system, choose those that one
1000 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1001
1002config CPU_MIPS64_R1
1003 bool "MIPS64 Release 1"
7cf8053b 1004 depends on SYS_HAS_CPU_MIPS64_R1
f7062ddb 1005 select CPU_HAS_LLSC
797798c1 1006 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1007 select CPU_SUPPORTS_32BIT_KERNEL
1008 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1009 select CPU_SUPPORTS_HIGHMEM
6e760c8d
RB
1010 help
1011 Choose this option to build a kernel for release 1 or later of the
1012 MIPS64 architecture. Many modern embedded systems with a 64-bit
1013 MIPS processor are based on a MIPS64 processor. If you know the
1014 specific type of processor in your system, choose those that one
1015 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1e5f1caa
RB
1016 Release 2 of the MIPS64 architecture is available since several
1017 years so chances are you even have a MIPS64 Release 2 processor
1018 in which case you should choose CPU_MIPS64_R2 instead for better
1019 performance.
1020
1021config CPU_MIPS64_R2
1022 bool "MIPS64 Release 2"
7cf8053b 1023 depends on SYS_HAS_CPU_MIPS64_R2
f7062ddb 1024 select CPU_HAS_LLSC
797798c1 1025 select CPU_HAS_PREFETCH
1e5f1caa
RB
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_64BIT_KERNEL
ec28f306 1028 select CPU_SUPPORTS_HIGHMEM
1e5f1caa
RB
1029 help
1030 Choose this option to build a kernel for release 2 or later of the
1031 MIPS64 architecture. Many modern embedded systems with a 64-bit
1032 MIPS processor are based on a MIPS64 processor. If you know the
1033 specific type of processor in your system, choose those that one
1034 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1da177e4
LT
1035
1036config CPU_R3000
1037 bool "R3000"
7cf8053b 1038 depends on SYS_HAS_CPU_R3000
f7062ddb 1039 select CPU_HAS_WB
ed5ba2fb 1040 select CPU_SUPPORTS_32BIT_KERNEL
797798c1 1041 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1042 help
1043 Please make sure to pick the right CPU type. Linux/MIPS is not
1044 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1045 *not* work on R4000 machines and vice versa. However, since most
1046 of the supported machines have an R4000 (or similar) CPU, R4x00
1047 might be a safe bet. If the resulting kernel does not work,
1048 try to recompile with R3000.
1049
1050config CPU_TX39XX
1051 bool "R39XX"
7cf8053b 1052 depends on SYS_HAS_CPU_TX39XX
ed5ba2fb 1053 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1054
1055config CPU_VR41XX
1056 bool "R41xx"
7cf8053b 1057 depends on SYS_HAS_CPU_VR41XX
ed5ba2fb
YY
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1060 help
5e83d430 1061 The options selects support for the NEC VR4100 series of processors.
1da177e4
LT
1062 Only choose this option if you have one of these processors as a
1063 kernel built with this option will not run on any other type of
1064 processor or vice versa.
1065
1066config CPU_R4300
1067 bool "R4300"
7cf8053b 1068 depends on SYS_HAS_CPU_R4300
f7062ddb 1069 select CPU_HAS_LLSC
ed5ba2fb
YY
1070 select CPU_SUPPORTS_32BIT_KERNEL
1071 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1072 help
1073 MIPS Technologies R4300-series processors.
1074
1075config CPU_R4X00
1076 bool "R4x00"
7cf8053b 1077 depends on SYS_HAS_CPU_R4X00
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 R4000-series processors other than 4300, including
1083 the R4000, R4400, R4600, and 4700.
1084
1085config CPU_TX49XX
1086 bool "R49XX"
7cf8053b 1087 depends on SYS_HAS_CPU_TX49XX
f7062ddb 1088 select CPU_HAS_LLSC
de862b48 1089 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1090 select CPU_SUPPORTS_32BIT_KERNEL
1091 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1092
1093config CPU_R5000
1094 bool "R5000"
7cf8053b 1095 depends on SYS_HAS_CPU_R5000
f7062ddb 1096 select CPU_HAS_LLSC
ed5ba2fb
YY
1097 select CPU_SUPPORTS_32BIT_KERNEL
1098 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1099 help
1100 MIPS Technologies R5000-series processors other than the Nevada.
1101
1102config CPU_R5432
1103 bool "R5432"
7cf8053b 1104 depends on SYS_HAS_CPU_R5432
f7062ddb 1105 select CPU_HAS_LLSC
5e83d430
RB
1106 select CPU_SUPPORTS_32BIT_KERNEL
1107 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4 1108
542c1020
SK
1109config CPU_R5500
1110 bool "R5500"
1111 depends on SYS_HAS_CPU_R5500
1112 select CPU_HAS_LLSC
1113 select CPU_SUPPORTS_32BIT_KERNEL
1114 select CPU_SUPPORTS_64BIT_KERNEL
1115 help
1116 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1117 instruction set.
1118
1da177e4
LT
1119config CPU_R6000
1120 bool "R6000"
ed5ba2fb 1121 depends on EXPERIMENTAL
f7062ddb 1122 select CPU_HAS_LLSC
7cf8053b 1123 depends on SYS_HAS_CPU_R6000
ed5ba2fb 1124 select CPU_SUPPORTS_32BIT_KERNEL
1da177e4
LT
1125 help
1126 MIPS Technologies R6000 and R6000A series processors. Note these
c09b47d8 1127 processors are extremely rare and the support for them is incomplete.
1da177e4
LT
1128
1129config CPU_NEVADA
1130 bool "RM52xx"
7cf8053b 1131 depends on SYS_HAS_CPU_NEVADA
f7062ddb 1132 select CPU_HAS_LLSC
ed5ba2fb
YY
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1135 help
1136 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1137
1138config CPU_R8000
1139 bool "R8000"
ed5ba2fb 1140 depends on EXPERIMENTAL
7cf8053b 1141 depends on SYS_HAS_CPU_R8000
f7062ddb 1142 select CPU_HAS_LLSC
5e83d430 1143 select CPU_HAS_PREFETCH
ed5ba2fb 1144 select CPU_SUPPORTS_64BIT_KERNEL
1da177e4
LT
1145 help
1146 MIPS Technologies R8000 processors. Note these processors are
1147 uncommon and the support for them is incomplete.
1148
1149config CPU_R10000
1150 bool "R10000"
7cf8053b 1151 depends on SYS_HAS_CPU_R10000
f7062ddb 1152 select CPU_HAS_LLSC
5e83d430 1153 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1154 select CPU_SUPPORTS_32BIT_KERNEL
1155 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1156 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1157 help
1158 MIPS Technologies R10000-series processors.
1159
1160config CPU_RM7000
1161 bool "RM7000"
7cf8053b 1162 depends on SYS_HAS_CPU_RM7000
f7062ddb 1163 select CPU_HAS_LLSC
5e83d430 1164 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1167 select CPU_SUPPORTS_HIGHMEM
1da177e4
LT
1168
1169config CPU_RM9000
1170 bool "RM9000"
7cf8053b 1171 depends on SYS_HAS_CPU_RM9000
f7062ddb 1172 select CPU_HAS_LLSC
5e83d430 1173 select CPU_HAS_PREFETCH
ed5ba2fb
YY
1174 select CPU_SUPPORTS_32BIT_KERNEL
1175 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1176 select CPU_SUPPORTS_HIGHMEM
0004a9df 1177 select WEAK_ORDERING
1da177e4
LT
1178
1179config CPU_SB1
1180 bool "SB1"
7cf8053b 1181 depends on SYS_HAS_CPU_SB1
f7062ddb 1182 select CPU_HAS_LLSC
ed5ba2fb
YY
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
797798c1 1185 select CPU_SUPPORTS_HIGHMEM
0004a9df 1186 select WEAK_ORDERING
1da177e4
LT
1187
1188endchoice
1189
2a21c730
FZ
1190config SYS_HAS_CPU_LOONGSON2
1191 bool
1192
7cf8053b
RB
1193config SYS_HAS_CPU_MIPS32_R1
1194 bool
1195
1196config SYS_HAS_CPU_MIPS32_R2
1197 bool
1198
1199config SYS_HAS_CPU_MIPS64_R1
1200 bool
1201
1202config SYS_HAS_CPU_MIPS64_R2
1203 bool
1204
1205config SYS_HAS_CPU_R3000
1206 bool
1207
1208config SYS_HAS_CPU_TX39XX
1209 bool
1210
1211config SYS_HAS_CPU_VR41XX
1212 bool
1213
1214config SYS_HAS_CPU_R4300
1215 bool
1216
1217config SYS_HAS_CPU_R4X00
1218 bool
1219
1220config SYS_HAS_CPU_TX49XX
1221 bool
1222
1223config SYS_HAS_CPU_R5000
1224 bool
1225
1226config SYS_HAS_CPU_R5432
1227 bool
1228
542c1020
SK
1229config SYS_HAS_CPU_R5500
1230 bool
1231
7cf8053b
RB
1232config SYS_HAS_CPU_R6000
1233 bool
1234
1235config SYS_HAS_CPU_NEVADA
1236 bool
1237
1238config SYS_HAS_CPU_R8000
1239 bool
1240
1241config SYS_HAS_CPU_R10000
1242 bool
1243
1244config SYS_HAS_CPU_RM7000
1245 bool
1246
1247config SYS_HAS_CPU_RM9000
1248 bool
1249
1250config SYS_HAS_CPU_SB1
1251 bool
1252
17099b11
RB
1253#
1254# CPU may reorder R->R, R->W, W->R, W->W
1255# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1256#
0004a9df
RB
1257config WEAK_ORDERING
1258 bool
17099b11
RB
1259
1260#
1261# CPU may reorder reads and writes beyond LL/SC
1262# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1263#
1264config WEAK_REORDERING_BEYOND_LLSC
1265 bool
5e83d430
RB
1266endmenu
1267
1268#
c09b47d8 1269# These two indicate any level of the MIPS32 and MIPS64 architecture
5e83d430
RB
1270#
1271config CPU_MIPS32
1272 bool
1273 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1274
1275config CPU_MIPS64
1276 bool
1277 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1278
1279#
c09b47d8 1280# These two indicate the revision of the architecture, either Release 1 or Release 2
5e83d430
RB
1281#
1282config CPU_MIPSR1
1283 bool
1284 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1285
1286config CPU_MIPSR2
1287 bool
1288 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1289
1290config SYS_SUPPORTS_32BIT_KERNEL
1291 bool
1292config SYS_SUPPORTS_64BIT_KERNEL
1293 bool
1294config CPU_SUPPORTS_32BIT_KERNEL
1295 bool
1296config CPU_SUPPORTS_64BIT_KERNEL
1297 bool
1298
8192c9ea
DD
1299#
1300# Set to y for ptrace access to watch registers.
1301#
1302config HARDWARE_WATCHPOINTS
1303 bool
1304 default y if CPU_MIPS32 || CPU_MIPS64
1305
5e83d430
RB
1306menu "Kernel type"
1307
1308choice
1309
1310 prompt "Kernel code model"
1311 help
1312 You should only select this option if you have a workload that
1313 actually benefits from 64-bit processing or if your machine has
1314 large memory. You will only be presented a single option in this
1315 menu if your system does not support both 32-bit and 64-bit kernels.
1316
1317config 32BIT
1318 bool "32-bit kernel"
1319 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1320 select TRAD_SIGNALS
1321 help
1322 Select this option if you want to build a 32-bit kernel.
1323config 64BIT
1324 bool "64-bit kernel"
1325 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1326 help
1327 Select this option if you want to build a 64-bit kernel.
1328
1329endchoice
1330
1da177e4
LT
1331choice
1332 prompt "Kernel page size"
1333 default PAGE_SIZE_4KB
1334
1335config PAGE_SIZE_4KB
1336 bool "4kB"
1337 help
1338 This option select the standard 4kB Linux page size. On some
1339 R3000-family processors this is the only available page size. Using
1340 4kB page size will minimize memory consumption and is therefore
1341 recommended for low memory systems.
1342
1343config PAGE_SIZE_8KB
1344 bool "8kB"
1345 depends on EXPERIMENTAL && CPU_R8000
1346 help
1347 Using 8kB page size will result in higher performance kernel at
1348 the price of higher memory consumption. This option is available
1349 only on the R8000 processor. Not that at the time of this writing
1350 this option is still high experimental; there are also issues with
1351 compatibility of user applications.
1352
1353config PAGE_SIZE_16KB
1354 bool "16kB"
714bfad6 1355 depends on !CPU_R3000 && !CPU_TX39XX
1da177e4
LT
1356 help
1357 Using 16kB page size will result in higher performance kernel at
1358 the price of higher memory consumption. This option is available on
714bfad6
RB
1359 all non-R3000 family processors. Note that you will need a suitable
1360 Linux distribution to support this.
1da177e4
LT
1361
1362config PAGE_SIZE_64KB
1363 bool "64kB"
1364 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1365 help
1366 Using 64kB page size will result in higher performance kernel at
1367 the price of higher memory consumption. This option is available on
1368 all non-R3000 family processor. Not that at the time of this
714bfad6 1369 writing this option is still high experimental.
1da177e4
LT
1370
1371endchoice
1372
1373config BOARD_SCACHE
1374 bool
1375
1376config IP22_CPU_SCACHE
1377 bool
1378 select BOARD_SCACHE
1379
9318c51a
CD
1380#
1381# Support for a MIPS32 / MIPS64 style S-caches
1382#
1383config MIPS_CPU_SCACHE
1384 bool
1385 select BOARD_SCACHE
1386
1da177e4
LT
1387config R5000_CPU_SCACHE
1388 bool
1389 select BOARD_SCACHE
1390
1391config RM7000_CPU_SCACHE
1392 bool
1393 select BOARD_SCACHE
1394
1395config SIBYTE_DMA_PAGEOPS
1396 bool "Use DMA to clear/copy pages"
1397 depends on CPU_SB1
1398 help
1399 Instead of using the CPU to zero and copy pages, use a Data Mover
1400 channel. These DMA channels are otherwise unused by the standard
1401 SiByte Linux port. Seems to give a small performance benefit.
1402
1403config CPU_HAS_PREFETCH
c8094b53 1404 bool
1da177e4 1405
340ee4b9
RB
1406choice
1407 prompt "MIPS MT options"
f41ae0b2
RB
1408
1409config MIPS_MT_DISABLED
1410 bool "Disable multithreading support."
1411 help
1412 Use this option if your workload can't take advantage of
1413 MIPS hardware multithreading support. On systems that don't have
1414 the option of an MT-enabled processor this option will be the only
1415 option in this menu.
340ee4b9 1416
59d6ab86
RB
1417config MIPS_MT_SMP
1418 bool "Use 1 TC on each available VPE for SMP"
f41ae0b2 1419 depends on SYS_SUPPORTS_MULTITHREADING
f7062ddb 1420 select CPU_MIPSR2_IRQ_VI
d725cf38 1421 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1422 select MIPS_MT
f510aa3b 1423 select NR_CPUS_DEFAULT_2
41c594ab 1424 select SMP
0ab7aefc 1425 select SYS_SUPPORTS_SCHED_SMT if SMP
73b76c78 1426 select SYS_SUPPORTS_SMP
87353d8a 1427 select SMP_UP
f41ae0b2 1428 help
59d6ab86
RB
1429 This is a kernel model which is also known a VSMP or lately
1430 has been marketesed into SMVP.
41c594ab 1431
59d6ab86
RB
1432config MIPS_MT_SMTC
1433 bool "SMTC: Use all TCs on all VPEs for SMP"
1434 depends on CPU_MIPS32_R2
1435 #depends on CPU_MIPS64_R2 # once there is hardware ...
f41ae0b2
RB
1436 depends on SYS_SUPPORTS_MULTITHREADING
1437 select CPU_MIPSR2_IRQ_VI
d725cf38 1438 select CPU_MIPSR2_IRQ_EI
f41ae0b2 1439 select MIPS_MT
130e2fb7 1440 select NR_CPUS_DEFAULT_8
340ee4b9 1441 select SMP
73b76c78 1442 select SYS_SUPPORTS_SMP
87353d8a 1443 select SMP_UP
f41ae0b2 1444 help
59d6ab86
RB
1445 This is a kernel model which is known a SMTC or lately has been
1446 marketesed into SMVP.
340ee4b9 1447
340ee4b9
RB
1448endchoice
1449
f41ae0b2
RB
1450config MIPS_MT
1451 bool
1452
0ab7aefc
RB
1453config SCHED_SMT
1454 bool "SMT (multithreading) scheduler support"
1455 depends on SYS_SUPPORTS_SCHED_SMT
1456 default n
1457 help
1458 SMT scheduler support improves the CPU scheduler's decision making
1459 when dealing with MIPS MT enabled cores at a cost of slightly
1460 increased overhead in some places. If unsure say N here.
1461
1462config SYS_SUPPORTS_SCHED_SMT
1463 bool
1464
1465
f41ae0b2
RB
1466config SYS_SUPPORTS_MULTITHREADING
1467 bool
1468
f088fc84
RB
1469config MIPS_MT_FPAFF
1470 bool "Dynamic FPU affinity for FP-intensive threads"
f088fc84 1471 default y
07cc0c9e
RB
1472 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1473
1474config MIPS_VPE_LOADER
1475 bool "VPE loader support."
1476 depends on SYS_SUPPORTS_MULTITHREADING
1477 select CPU_MIPSR2_IRQ_VI
1478 select CPU_MIPSR2_IRQ_EI
07cc0c9e
RB
1479 select MIPS_MT
1480 help
1481 Includes a loader for loading an elf relocatable object
1482 onto another VPE and running it.
f088fc84 1483
0db34215
KK
1484config MIPS_MT_SMTC_IM_BACKSTOP
1485 bool "Use per-TC register bits as backstop for inhibited IM bits"
1486 depends on MIPS_MT_SMTC
8531a35e 1487 default n
0db34215
KK
1488 help
1489 To support multiple TC microthreads acting as "CPUs" within
1490 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1491 during interrupt handling. To support legacy drivers and interrupt
1492 controller management code, SMTC has a "backstop" to track and
1493 if necessary restore the interrupt mask. This has some performance
8531a35e 1494 impact on interrupt service overhead.
0db34215 1495
f571eff0
KK
1496config MIPS_MT_SMTC_IRQAFF
1497 bool "Support IRQ affinity API"
1498 depends on MIPS_MT_SMTC
1499 default n
1500 help
1501 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1502 for SMTC Linux kernel. Requires platform support, of which
1503 an example can be found in the MIPS kernel i8259 and Malta
8531a35e
KK
1504 platform code. Adds some overhead to interrupt dispatch, and
1505 should be used only if you know what you are doing.
f571eff0 1506
e01402b1
RB
1507config MIPS_VPE_LOADER_TOM
1508 bool "Load VPE program into memory hidden from linux"
1509 depends on MIPS_VPE_LOADER
1510 default y
1511 help
1512 The loader can use memory that is present but has been hidden from
1513 Linux using the kernel command line option "mem=xxMB". It's up to
1514 you to ensure the amount you put in the option and the space your
1515 program requires is less or equal to the amount physically present.
1516
1517# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1518config MIPS_VPE_APSP_API
5e83d430
RB
1519 bool "Enable support for AP/SP API (RTLX)"
1520 depends on MIPS_VPE_LOADER
1521 help
e01402b1 1522
2600990e
RB
1523config MIPS_APSP_KSPD
1524 bool "Enable KSPD"
1525 depends on MIPS_VPE_APSP_API
1526 default y
1527 help
1528 KSPD is a kernel daemon that accepts syscall requests from the SP
1529 side, actions them and returns the results. It also handles the
1530 "exit" syscall notifying other kernel modules the SP program is
1531 exiting. You probably want to say yes here.
1532
4a16ff4c
RB
1533config MIPS_CMP
1534 bool "MIPS CMP framework support"
1535 depends on SYS_SUPPORTS_MIPS_CMP
1536 select SYNC_R4K if BROKEN
1537 select SYS_SUPPORTS_SMP
1538 select SYS_SUPPORTS_SCHED_SMT if SMP
1539 select WEAK_ORDERING
1540 default n
1541 help
1542 This is a placeholder option for the GCMP work. It will need to
1543 be handled differently...
1544
1da177e4
LT
1545config SB1_PASS_1_WORKAROUNDS
1546 bool
1547 depends on CPU_SB1_PASS_1
1548 default y
1549
1550config SB1_PASS_2_WORKAROUNDS
1551 bool
1552 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1553 default y
1554
1555config SB1_PASS_2_1_WORKAROUNDS
1556 bool
1557 depends on CPU_SB1 && CPU_SB1_PASS_2
1558 default y
1559
1560config 64BIT_PHYS_ADDR
d806cb2b 1561 bool
1da177e4 1562
1da177e4 1563config CPU_HAS_LLSC
f7062ddb 1564 bool
1da177e4 1565
9693a853
FBH
1566config CPU_HAS_SMARTMIPS
1567 depends on SYS_SUPPORTS_SMARTMIPS
1568 bool "Support for the SmartMIPS ASE"
1569 help
1570 SmartMIPS is a extension of the MIPS32 architecture aimed at
1571 increased security at both hardware and software level for
1572 smartcards. Enabling this option will allow proper use of the
1573 SmartMIPS instructions by Linux applications. However a kernel with
1574 this option will not work on a MIPS core without SmartMIPS core. If
1575 you don't know you probably don't have SmartMIPS and should say N
1576 here.
1577
1da177e4 1578config CPU_HAS_WB
f7062ddb 1579 bool
e01402b1 1580
f41ae0b2
RB
1581#
1582# Vectored interrupt mode is an R2 feature
1583#
e01402b1 1584config CPU_MIPSR2_IRQ_VI
f41ae0b2 1585 bool
e01402b1 1586
f41ae0b2
RB
1587#
1588# Extended interrupt mode is an R2 feature
1589#
e01402b1 1590config CPU_MIPSR2_IRQ_EI
f41ae0b2 1591 bool
e01402b1 1592
1da177e4
LT
1593config CPU_HAS_SYNC
1594 bool
1595 depends on !CPU_R3000
1596 default y
1597
ea580401
RB
1598config GENERIC_CLOCKEVENTS_BROADCAST
1599 bool
1600
20d60d99
MR
1601#
1602# CPU non-features
1603#
1604config CPU_DADDI_WORKAROUNDS
1605 bool
1606
1607config CPU_R4000_WORKAROUNDS
1608 bool
1609 select CPU_R4400_WORKAROUNDS
1610
1611config CPU_R4400_WORKAROUNDS
1612 bool
1613
797798c1
RB
1614#
1615# Use the generic interrupt handling code in kernel/irq/:
1616#
1617config GENERIC_HARDIRQS
1618 bool
1619 default y
1620
1621config GENERIC_IRQ_PROBE
1622 bool
1623 default y
1624
0d7012a9 1625config IRQ_PER_CPU
0d7012a9 1626 bool
0d7012a9 1627
1da177e4
LT
1628#
1629# - Highmem only makes sense for the 32-bit kernel.
1630# - The current highmem code will only work properly on physically indexed
1631# caches such as R3000, SB1, R7000 or those that look like they're virtually
1632# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1633# moment we protect the user and offer the highmem option only on machines
1634# where it's known to be safe. This will not offer highmem on a few systems
1635# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1636# indexed CPUs but we're playing safe.
797798c1
RB
1637# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1638# know they might have memory configurations that could make use of highmem
1639# support.
1da177e4
LT
1640#
1641config HIGHMEM
1642 bool "High Memory Support"
797798c1
RB
1643 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1644
1645config CPU_SUPPORTS_HIGHMEM
1646 bool
1647
1648config SYS_SUPPORTS_HIGHMEM
1649 bool
1da177e4 1650
9693a853
FBH
1651config SYS_SUPPORTS_SMARTMIPS
1652 bool
1653
b4819b59
YY
1654config ARCH_FLATMEM_ENABLE
1655 def_bool y
1656 depends on !NUMA
1657
d8cb4e11
RB
1658config ARCH_DISCONTIGMEM_ENABLE
1659 bool
1660 default y if SGI_IP27
1661 help
3dde6ad8 1662 Say Y to support efficient handling of discontiguous physical memory,
d8cb4e11
RB
1663 for architectures which are either NUMA (Non-Uniform Memory Access)
1664 or have huge holes in the physical address space for other reasons.
1665 See <file:Documentation/vm/numa> for more.
1666
cce335ae
RB
1667config ARCH_POPULATES_NODE_MAP
1668 def_bool y
1669
31473747
AN
1670config ARCH_SPARSEMEM_ENABLE
1671 bool
7de58fab 1672 select SPARSEMEM_STATIC
31473747 1673
d8cb4e11
RB
1674config NUMA
1675 bool "NUMA Support"
1676 depends on SYS_SUPPORTS_NUMA
1677 help
1678 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1679 Access). This option improves performance on systems with more
1680 than two nodes; on two node systems it is generally better to
1681 leave it disabled; on single node systems disable this option
1682 disabled.
1683
1684config SYS_SUPPORTS_NUMA
1685 bool
1686
c80d79d7
YG
1687config NODES_SHIFT
1688 int
1689 default "6"
1690 depends on NEED_MULTIPLE_NODES
1691
b4819b59
YY
1692source "mm/Kconfig"
1693
1da177e4
LT
1694config SMP
1695 bool "Multi-Processing support"
e73ea273 1696 depends on SYS_SUPPORTS_SMP
b4b30a5a 1697 select IRQ_PER_CPU
2f304c0a 1698 select USE_GENERIC_SMP_HELPERS
e73ea273 1699 help
1da177e4
LT
1700 This enables support for systems with more than one CPU. If you have
1701 a system with only one CPU, like most personal computers, say N. If
1702 you have a system with more than one CPU, say Y.
1703
1704 If you say N here, the kernel will run on single and multiprocessor
1705 machines, but will use only one CPU of a multiprocessor machine. If
1706 you say Y here, the kernel will run on many, but not all,
1707 singleprocessor machines. On a singleprocessor machine, the kernel
1708 will run faster if you say N here.
1709
1710 People using multiprocessor machines who say Y here should also say
1711 Y to "Enhanced Real Time Clock Support", below.
1712
03502faa
AB
1713 See also the SMP-HOWTO available at
1714 <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
1715
1716 If you don't know what to do here, say N.
1717
87353d8a
RB
1718config SMP_UP
1719 bool
1720
4a16ff4c
RB
1721config SYS_SUPPORTS_MIPS_CMP
1722 bool
1723
e73ea273
RB
1724config SYS_SUPPORTS_SMP
1725 bool
1726
72ede9b1
AN
1727config NR_CPUS_DEFAULT_1
1728 bool
1729
130e2fb7
RB
1730config NR_CPUS_DEFAULT_2
1731 bool
1732
1733config NR_CPUS_DEFAULT_4
1734 bool
1735
1736config NR_CPUS_DEFAULT_8
1737 bool
1738
1739config NR_CPUS_DEFAULT_16
1740 bool
1741
1742config NR_CPUS_DEFAULT_32
1743 bool
1744
1745config NR_CPUS_DEFAULT_64
1746 bool
1747
1da177e4
LT
1748config NR_CPUS
1749 int "Maximum number of CPUs (2-64)"
72ede9b1 1750 range 1 64 if NR_CPUS_DEFAULT_1
1da177e4 1751 depends on SMP
72ede9b1 1752 default "1" if NR_CPUS_DEFAULT_1
130e2fb7
RB
1753 default "2" if NR_CPUS_DEFAULT_2
1754 default "4" if NR_CPUS_DEFAULT_4
1755 default "8" if NR_CPUS_DEFAULT_8
1756 default "16" if NR_CPUS_DEFAULT_16
1757 default "32" if NR_CPUS_DEFAULT_32
1758 default "64" if NR_CPUS_DEFAULT_64
1da177e4
LT
1759 help
1760 This allows you to specify the maximum number of CPUs which this
1761 kernel will support. The maximum supported value is 32 for 32-bit
1762 kernel and 64 for 64-bit kernels; the minimum value which makes
72ede9b1
AN
1763 sense is 1 for Qemu (useful only for kernel debugging purposes)
1764 and 2 for all others.
1da177e4
LT
1765
1766 This is purely to save memory - each supported CPU adds
72ede9b1
AN
1767 approximately eight kilobytes to the kernel image. For best
1768 performance should round up your number of processors to the next
1769 power of two.
1da177e4 1770
c4eee283
AN
1771source "kernel/time/Kconfig"
1772
1723b4a3
AN
1773#
1774# Timer Interrupt Frequency Configuration
1775#
1776
1777choice
1778 prompt "Timer frequency"
1779 default HZ_250
1780 help
1781 Allows the configuration of the timer frequency.
1782
1783 config HZ_48
0f873585 1784 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1723b4a3
AN
1785
1786 config HZ_100
1787 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1788
1789 config HZ_128
1790 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1791
1792 config HZ_250
1793 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1794
1795 config HZ_256
1796 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1797
1798 config HZ_1000
1799 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1800
1801 config HZ_1024
1802 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1803
1804endchoice
1805
1806config SYS_SUPPORTS_48HZ
1807 bool
1808
1809config SYS_SUPPORTS_100HZ
1810 bool
1811
1812config SYS_SUPPORTS_128HZ
1813 bool
1814
1815config SYS_SUPPORTS_250HZ
1816 bool
1817
1818config SYS_SUPPORTS_256HZ
1819 bool
1820
1821config SYS_SUPPORTS_1000HZ
1822 bool
1823
1824config SYS_SUPPORTS_1024HZ
1825 bool
1826
1827config SYS_SUPPORTS_ARBIT_HZ
1828 bool
1829 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1830 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1831 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1832 !SYS_SUPPORTS_1024HZ
1833
1834config HZ
1835 int
1836 default 48 if HZ_48
1837 default 100 if HZ_100
1838 default 128 if HZ_128
1839 default 250 if HZ_250
1840 default 256 if HZ_256
1841 default 1000 if HZ_1000
1842 default 1024 if HZ_1024
1843
e80de850 1844source "kernel/Kconfig.preempt"
1da177e4 1845
1da177e4
LT
1846config MIPS_INSANE_LARGE
1847 bool "Support for large 64-bit configurations"
875d43e7 1848 depends on CPU_R10000 && 64BIT
1da177e4
LT
1849 help
1850 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1851 previous 64-bit processors which only supported 40 bit / 1TB. If you
1852 need processes of more than 1TB virtual address space, say Y here.
1853 This will result in additional memory usage, so it is not
1854 recommended for normal users.
1855
ea6e942b
AN
1856config KEXEC
1857 bool "Kexec system call (EXPERIMENTAL)"
1858 depends on EXPERIMENTAL
1859 help
1860 kexec is a system call that implements the ability to shutdown your
1861 current kernel, and to start another kernel. It is like a reboot
3dde6ad8 1862 but it is independent of the system firmware. And like a reboot
ea6e942b
AN
1863 you can start any kernel with it, not just Linux.
1864
01dd2fbf 1865 The name comes from the similarity to the exec system call.
ea6e942b
AN
1866
1867 It is an ongoing process to be certain the hardware in a machine
1868 is properly shutdown, so do not be surprised if this code does not
1869 initially work for you. It may help to enable device hotplugging
1870 support. As of this writing the exact hardware interface is
1871 strongly in flux, so no good recommendation can be made.
1872
1873config SECCOMP
1874 bool "Enable seccomp to safely compute untrusted bytecode"
293c5bd1 1875 depends on PROC_FS
ea6e942b
AN
1876 default y
1877 help
1878 This kernel feature is useful for number crunching applications
1879 that may need to compute untrusted bytecode during their
1880 execution. By using pipes or other transports made available to
1881 the process as file descriptors supporting the read/write
1882 syscalls, it's possible to isolate those applications in
1883 their own address space using seccomp. Once seccomp is
1884 enabled via /proc/<pid>/seccomp, it cannot be disabled
1885 and the task is only allowed to execute a few safe syscalls
1886 defined by each seccomp mode.
1887
1888 If unsure, say Y. Only embedded should say N here.
1889
5e83d430
RB
1890endmenu
1891
1da177e4
LT
1892config RWSEM_GENERIC_SPINLOCK
1893 bool
1894 default y
1895
1df0f0ff
AN
1896config LOCKDEP_SUPPORT
1897 bool
1898 default y
1899
1900config STACKTRACE_SUPPORT
1901 bool
1902 default y
1903
b6c3539b
RB
1904source "init/Kconfig"
1905
0011036b
AN
1906config PROBE_INITRD_HEADER
1907 bool "Probe initrd header created by addinitrd"
1908 depends on BLK_DEV_INITRD
1909 help
1910 Probe initrd header at the last page of kernel image.
1911 Say Y here if you are using arch/mips/boot/addinitrd.c to
1912 add initrd or initramfs image to the kernel image.
1913 Otherwise, say N.
1914
dc52ddc0
MH
1915source "kernel/Kconfig.freezer"
1916
1da177e4
LT
1917menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1918
5e83d430
RB
1919config HW_HAS_EISA
1920 bool
1da177e4
LT
1921config HW_HAS_PCI
1922 bool
1923
1924config PCI
1925 bool "Support for PCI controller"
1926 depends on HW_HAS_PCI
abb4ae46 1927 select PCI_DOMAINS
1da177e4
LT
1928 help
1929 Find out whether you have a PCI motherboard. PCI is the name of a
1930 bus system, i.e. the way the CPU talks to the other stuff inside
1931 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1932 say Y, otherwise N.
1933
1da177e4
LT
1934config PCI_DOMAINS
1935 bool
1da177e4
LT
1936
1937source "drivers/pci/Kconfig"
1938
1939#
1940# ISA support is now enabled via select. Too many systems still have the one
1941# or other ISA chip on the board that users don't know about so don't expect
1942# users to choose the right thing ...
1943#
1944config ISA
1945 bool
1946
1947config EISA
1948 bool "EISA support"
5e83d430 1949 depends on HW_HAS_EISA
1da177e4 1950 select ISA
aa414dff 1951 select GENERIC_ISA_DMA
1da177e4
LT
1952 ---help---
1953 The Extended Industry Standard Architecture (EISA) bus was
1954 developed as an open alternative to the IBM MicroChannel bus.
1955
1956 The EISA bus provided some of the features of the IBM MicroChannel
1957 bus while maintaining backward compatibility with cards made for
1958 the older ISA bus. The EISA bus saw limited use between 1988 and
1959 1995 when it was made obsolete by the PCI bus.
1960
1961 Say Y here if you are building a kernel for an EISA-based machine.
1962
1963 Otherwise, say N.
1964
1965source "drivers/eisa/Kconfig"
1966
1967config TC
1968 bool "TURBOchannel support"
1969 depends on MACH_DECSTATION
1970 help
1971 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1972 processors. Documentation on writing device drivers for TurboChannel
1973 is available at:
1974 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1975
1976#config ACCESSBUS
1977# bool "Access.Bus support"
1978# depends on TC
1979
1980config MMU
1981 bool
1982 default y
1983
d865bea4
RB
1984config I8253
1985 bool
1986
cce335ae
RB
1987config ZONE_DMA32
1988 bool
1989
1da177e4
LT
1990source "drivers/pcmcia/Kconfig"
1991
1992source "drivers/pci/hotplug/Kconfig"
1993
1994endmenu
1995
1996menu "Executable file formats"
1997
1998source "fs/Kconfig.binfmt"
1999
2000config TRAD_SIGNALS
2001 bool
1da177e4 2002
1da177e4
LT
2003config MIPS32_COMPAT
2004 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
875d43e7 2005 depends on 64BIT
1da177e4
LT
2006 help
2007 Select this option if you want Linux/MIPS 32-bit binary
2008 compatibility. Since all software available for Linux/MIPS is
2009 currently 32-bit you should say Y here.
2010
2011config COMPAT
2012 bool
2013 depends on MIPS32_COMPAT
2014 default y
2015
05e43966
AN
2016config SYSVIPC_COMPAT
2017 bool
2018 depends on COMPAT && SYSVIPC
2019 default y
2020
1da177e4
LT
2021config MIPS32_O32
2022 bool "Kernel support for o32 binaries"
2023 depends on MIPS32_COMPAT
2024 help
2025 Select this option if you want to run o32 binaries. These are pure
2026 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2027 existing binaries are in this format.
2028
2029 If unsure, say Y.
2030
2031config MIPS32_N32
2032 bool "Kernel support for n32 binaries"
2033 depends on MIPS32_COMPAT
2034 help
2035 Select this option if you want to run n32 binaries. These are
2036 64-bit binaries using 32-bit quantities for addressing and certain
2037 data that would normally be 64-bit. They are used in special
2038 cases.
2039
2040 If unsure, say N.
2041
2042config BINFMT_ELF32
2043 bool
2044 default y if MIPS32_O32 || MIPS32_N32
2045
2116245e
RB
2046endmenu
2047
2048menu "Power management options"
2049
f4cb5700
JB
2050config ARCH_SUSPEND_POSSIBLE
2051 def_bool y
2052 depends on !SMP
2053
2116245e 2054source "kernel/power/Kconfig"
952fa954 2055
1da177e4
LT
2056endmenu
2057
d5950b43
SR
2058source "net/Kconfig"
2059
1da177e4
LT
2060source "drivers/Kconfig"
2061
2062source "fs/Kconfig"
2063
2064source "arch/mips/Kconfig.debug"
2065
2066source "security/Kconfig"
2067
2068source "crypto/Kconfig"
2069
2070source "lib/Kconfig"
This page took 0.549176 seconds and 5 git commands to generate.