| blob | e7d542d45605fe70320525d8a6a64f6d6352002d |
1 config MIPS
2 bool
3 default y
4 # Horrible source of confusion. Die, die, die ...
5 select EMBEDDED
7 mainmenu "Linux/MIPS Kernel Configuration"
9 menu "Machine selection"
11 config ZONE_DMA
12 bool
14 choice
15 prompt "System type"
16 default SGI_IP22
18 config MACH_ALCHEMY
19 bool "Alchemy processor based machines"
21 config BASLER_EXCITE
22 bool "Basler eXcite smart camera"
23 select DMA_COHERENT
24 select HW_HAS_PCI
25 select IRQ_CPU
26 select IRQ_CPU_RM7K
27 select IRQ_CPU_RM9K
28 select MIPS_RM9122
29 select SYS_HAS_CPU_RM9000
30 select SYS_SUPPORTS_32BIT_KERNEL
31 select SYS_SUPPORTS_64BIT_KERNEL
32 select SYS_SUPPORTS_BIG_ENDIAN
33 select SYS_SUPPORTS_KGDB
34 help
35 The eXcite is a smart camera platform manufactured by
36 Basler Vision Technologies AG.
38 config BASLER_EXCITE_PROTOTYPE
39 bool "Support for pre-release units"
40 depends on BASLER_EXCITE
41 default n
42 help
43 Pre-series (prototype) units are different from later ones in
44 some ways. Select this option if you have one of these. Please
45 note that a kernel built with this option selected will not be
46 able to run on normal units.
48 config MIPS_COBALT
49 bool "Cobalt Server"
50 select DMA_NONCOHERENT
51 select HW_HAS_PCI
52 select I8259
53 select IRQ_CPU
54 select PCI_GT64XXX_PCI0
55 select SYS_HAS_CPU_NEVADA
56 select SYS_HAS_EARLY_PRINTK
57 select SYS_SUPPORTS_32BIT_KERNEL
58 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
59 select SYS_SUPPORTS_LITTLE_ENDIAN
60 select GENERIC_HARDIRQS_NO__DO_IRQ
62 config MACH_DECSTATION
63 bool "DECstations"
64 select BOOT_ELF32
65 select DMA_NONCOHERENT
66 select NO_IOPORT
67 select IRQ_CPU
68 select SYS_HAS_CPU_R3000
69 select SYS_HAS_CPU_R4X00
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
72 select SYS_SUPPORTS_LITTLE_ENDIAN
73 select SYS_SUPPORTS_128HZ
74 select SYS_SUPPORTS_256HZ
75 select SYS_SUPPORTS_1024HZ
76 help
77 This enables support for DEC's MIPS based workstations. For details
78 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
79 DECstation porting pages on <http://decstation.unix-ag.org/>.
81 If you have one of the following DECstation Models you definitely
82 want to choose R4xx0 for the CPU Type:
84 DECstation 5000/50
85 DECstation 5000/150
86 DECstation 5000/260
87 DECsystem 5900/260
89 otherwise choose R3000.
91 config MACH_JAZZ
92 bool "Jazz family of machines"
93 select ARC
94 select ARC32
95 select ARCH_MAY_HAVE_PC_FDC
96 select GENERIC_ISA_DMA
97 select I8259
98 select ISA
99 select PCSPEAKER
100 select SYS_HAS_CPU_R4X00
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
103 select SYS_SUPPORTS_100HZ
104 select GENERIC_HARDIRQS_NO__DO_IRQ
105 help
106 This a family of machines based on the MIPS R4030 chipset which was
107 used by several vendors to build RISC/os and Windows NT workstations.
108 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
109 Olivetti M700-10 workstations.
111 config LEMOTE_FULONG
112 bool "Lemote Fulong mini-PC"
113 select ARCH_SPARSEMEM_ENABLE
114 select SYS_HAS_CPU_LOONGSON2
115 select DMA_NONCOHERENT
116 select BOOT_ELF32
117 select BOARD_SCACHE
118 select HAVE_STD_PC_SERIAL_PORT
119 select HW_HAS_PCI
120 select I8259
121 select ISA
122 select IRQ_CPU
123 select SYS_SUPPORTS_32BIT_KERNEL
124 select SYS_SUPPORTS_64BIT_KERNEL
125 select SYS_SUPPORTS_LITTLE_ENDIAN
126 select SYS_SUPPORTS_HIGHMEM
127 select SYS_HAS_EARLY_PRINTK
128 select GENERIC_HARDIRQS_NO__DO_IRQ
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
134 config MIPS_ATLAS
135 bool "MIPS Atlas board"
136 select BOOT_ELF32
137 select DMA_NONCOHERENT
138 select SYS_HAS_EARLY_PRINTK
139 select IRQ_CPU
140 select HW_HAS_PCI
141 select MIPS_BOARDS_GEN
142 select MIPS_BONITO64
143 select PCI_GT64XXX_PCI0
144 select MIPS_MSC
145 select RM7000_CPU_SCACHE
146 select SWAP_IO_SPACE
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
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
154 select SYS_SUPPORTS_BIG_ENDIAN
155 select SYS_SUPPORTS_LITTLE_ENDIAN
156 select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
157 select SYS_SUPPORTS_SMARTMIPS
158 select GENERIC_HARDIRQS_NO__DO_IRQ
159 help
160 This enables support for the MIPS Technologies Atlas evaluation
161 board.
163 config MIPS_MALTA
164 bool "MIPS Malta board"
165 select ARCH_MAY_HAVE_PC_FDC
166 select BOOT_ELF32
167 select DMA_NONCOHERENT
168 select GENERIC_ISA_DMA
169 select IRQ_CPU
170 select HW_HAS_PCI
171 select I8259
172 select MIPS_BOARDS_GEN
173 select MIPS_BONITO64
174 select MIPS_CPU_SCACHE
175 select PCI_GT64XXX_PCI0
176 select MIPS_MSC
177 select SWAP_IO_SPACE
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
183 select SYS_HAS_EARLY_PRINTK
184 select SYS_SUPPORTS_32BIT_KERNEL
185 select SYS_SUPPORTS_64BIT_KERNEL
186 select SYS_SUPPORTS_BIG_ENDIAN
187 select SYS_SUPPORTS_LITTLE_ENDIAN
188 select SYS_SUPPORTS_MULTITHREADING
189 select SYS_SUPPORTS_SMARTMIPS
190 help
191 This enables support for the MIPS Technologies Malta evaluation
192 board.
194 config MIPS_SEAD
195 bool "MIPS SEAD board (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
197 select IRQ_CPU
198 select DMA_NONCOHERENT
199 select SYS_HAS_EARLY_PRINTK
200 select MIPS_BOARDS_GEN
201 select SYS_HAS_CPU_MIPS32_R1
202 select SYS_HAS_CPU_MIPS32_R2
203 select SYS_HAS_CPU_MIPS64_R1
204 select SYS_SUPPORTS_32BIT_KERNEL
205 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
206 select SYS_SUPPORTS_BIG_ENDIAN
207 select SYS_SUPPORTS_LITTLE_ENDIAN
208 select SYS_SUPPORTS_SMARTMIPS
209 help
210 This enables support for the MIPS Technologies SEAD evaluation
211 board.
213 config MIPS_SIM
214 bool 'MIPS simulator (MIPSsim)'
215 select DMA_NONCOHERENT
216 select SYS_HAS_EARLY_PRINTK
217 select IRQ_CPU
218 select BOOT_RAW
219 select SYS_HAS_CPU_MIPS32_R1
220 select SYS_HAS_CPU_MIPS32_R2
221 select SYS_HAS_EARLY_PRINTK
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_BIG_ENDIAN
224 select SYS_SUPPORTS_MULTITHREADING
225 select SYS_SUPPORTS_LITTLE_ENDIAN
226 help
227 This option enables support for MIPS Technologies MIPSsim software
228 emulator.
230 config MARKEINS
231 bool "NEC EMMA2RH Mark-eins"
232 select DMA_NONCOHERENT
233 select HW_HAS_PCI
234 select IRQ_CPU
235 select SWAP_IO_SPACE
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_BIG_ENDIAN
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select SYS_HAS_CPU_R5000
240 help
241 This enables support for the R5432-based NEC Mark-eins
242 boards with R5500 CPU.
244 config MACH_VR41XX
245 bool "NEC VR4100 series based machines"
246 select SYS_HAS_CPU_VR41XX
247 select GENERIC_HARDIRQS_NO__DO_IRQ
249 config PNX8550_JBS
250 bool "Philips PNX8550 based JBS board"
251 select PNX8550
252 select SYS_SUPPORTS_LITTLE_ENDIAN
254 config PNX8550_STB810
255 bool "Philips PNX8550 based STB810 board"
256 select PNX8550
257 select SYS_SUPPORTS_LITTLE_ENDIAN
259 config PMC_MSP
260 bool "PMC-Sierra MSP chipsets"
261 depends on EXPERIMENTAL
262 select DMA_NONCOHERENT
263 select SWAP_IO_SPACE
264 select NO_EXCEPT_FILL
265 select BOOT_RAW
266 select SYS_HAS_CPU_MIPS32_R1
267 select SYS_HAS_CPU_MIPS32_R2
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_BIG_ENDIAN
270 select SYS_SUPPORTS_KGDB
271 select IRQ_CPU
272 select SERIAL_8250
273 select SERIAL_8250_CONSOLE
274 help
275 This adds support for the PMC-Sierra family of Multi-Service
276 Processor System-On-A-Chips. These parts include a number
277 of integrated peripherals, interfaces and DSPs in addition to
278 a variety of MIPS cores.
280 config PMC_YOSEMITE
281 bool "PMC-Sierra Yosemite eval board"
282 select DMA_COHERENT
283 select HW_HAS_PCI
284 select IRQ_CPU
285 select IRQ_CPU_RM7K
286 select IRQ_CPU_RM9K
287 select SWAP_IO_SPACE
288 select SYS_HAS_CPU_RM9000
289 select SYS_HAS_EARLY_PRINTK
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_64BIT_KERNEL
292 select SYS_SUPPORTS_BIG_ENDIAN
293 select SYS_SUPPORTS_HIGHMEM
294 select SYS_SUPPORTS_KGDB
295 select SYS_SUPPORTS_SMP
296 help
297 Yosemite is an evaluation board for the RM9000x2 processor
298 manufactured by PMC-Sierra.
300 config QEMU
301 bool "Qemu"
302 select DMA_COHERENT
303 select GENERIC_ISA_DMA
304 select HAVE_STD_PC_SERIAL_PORT
305 select I8259
306 select ISA
307 select PCSPEAKER
308 select SWAP_IO_SPACE
309 select SYS_HAS_CPU_MIPS32_R1
310 select SYS_SUPPORTS_32BIT_KERNEL
311 select SYS_SUPPORTS_BIG_ENDIAN
312 select SYS_SUPPORTS_LITTLE_ENDIAN
313 select ARCH_SPARSEMEM_ENABLE
314 select GENERIC_HARDIRQS_NO__DO_IRQ
315 select NR_CPUS_DEFAULT_1
316 select SYS_SUPPORTS_SMP
317 help
318 Qemu is a software emulator which among other architectures also
319 can simulate a MIPS32 4Kc system. This patch adds support for the
320 system architecture that currently is being simulated by Qemu. It
321 will eventually be removed again when Qemu has the capability to
322 simulate actual MIPS hardware platforms. More information on Qemu
323 can be found at http://www.linux-mips.org/wiki/Qemu.
325 config SGI_IP22
326 bool "SGI IP22 (Indy/Indigo2)"
327 select ARC
328 select ARC32
329 select BOOT_ELF32
330 select DMA_NONCOHERENT
331 select HW_HAS_EISA
332 select IP22_CPU_SCACHE
333 select IRQ_CPU
334 select GENERIC_ISA_DMA_SUPPORT_BROKEN
335 select SWAP_IO_SPACE
336 select SYS_HAS_CPU_R4X00
337 select SYS_HAS_CPU_R5000
338 select SYS_HAS_EARLY_PRINTK
339 select SYS_SUPPORTS_32BIT_KERNEL
340 select SYS_SUPPORTS_64BIT_KERNEL
341 select SYS_SUPPORTS_BIG_ENDIAN
342 help
343 This are the SGI Indy, Challenge S and Indigo2, as well as certain
344 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
345 that runs on these, say Y here.
347 config SGI_IP27
348 bool "SGI IP27 (Origin200/2000)"
349 select ARC
350 select ARC64
351 select BOOT_ELF64
352 select DMA_IP27
353 select SYS_HAS_EARLY_PRINTK
354 select HW_HAS_PCI
355 select NR_CPUS_DEFAULT_64
356 select PCI_DOMAINS
357 select SYS_HAS_CPU_R10000
358 select SYS_SUPPORTS_64BIT_KERNEL
359 select SYS_SUPPORTS_BIG_ENDIAN
360 select SYS_SUPPORTS_KGDB
361 select SYS_SUPPORTS_NUMA
362 select SYS_SUPPORTS_SMP
363 select GENERIC_HARDIRQS_NO__DO_IRQ
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.
369 config SGI_IP32
370 bool "SGI IP32 (O2)"
371 select ARC
372 select ARC32
373 select BOOT_ELF32
374 select DMA_NONCOHERENT
375 select HW_HAS_PCI
376 select R5000_CPU_SCACHE
377 select RM7000_CPU_SCACHE
378 select SYS_HAS_CPU_R5000
379 select SYS_HAS_CPU_R10000 if BROKEN
380 select SYS_HAS_CPU_RM7000
381 select SYS_HAS_CPU_NEVADA
382 select SYS_SUPPORTS_64BIT_KERNEL
383 select SYS_SUPPORTS_BIG_ENDIAN
384 help
385 If you want this kernel to run on SGI O2 workstation, say Y here.
387 config SIBYTE_CRHINE
388 bool "Sibyte BCM91120C-CRhine"
389 depends on EXPERIMENTAL
390 select BOOT_ELF32
391 select DMA_COHERENT
392 select SIBYTE_BCM1120
393 select SWAP_IO_SPACE
394 select SYS_HAS_CPU_SB1
395 select SYS_SUPPORTS_BIG_ENDIAN
396 select SYS_SUPPORTS_LITTLE_ENDIAN
398 config SIBYTE_CARMEL
399 bool "Sibyte BCM91120x-Carmel"
400 depends on EXPERIMENTAL
401 select BOOT_ELF32
402 select DMA_COHERENT
403 select SIBYTE_BCM1120
404 select SWAP_IO_SPACE
405 select SYS_HAS_CPU_SB1
406 select SYS_SUPPORTS_BIG_ENDIAN
407 select SYS_SUPPORTS_LITTLE_ENDIAN
409 config SIBYTE_CRHONE
410 bool "Sibyte BCM91125C-CRhone"
411 depends on EXPERIMENTAL
412 select BOOT_ELF32
413 select DMA_COHERENT
414 select SIBYTE_BCM1125
415 select SWAP_IO_SPACE
416 select SYS_HAS_CPU_SB1
417 select SYS_SUPPORTS_BIG_ENDIAN
418 select SYS_SUPPORTS_HIGHMEM
419 select SYS_SUPPORTS_LITTLE_ENDIAN
421 config SIBYTE_RHONE
422 bool "Sibyte BCM91125E-Rhone"
423 depends on EXPERIMENTAL
424 select BOOT_ELF32
425 select DMA_COHERENT
426 select SIBYTE_BCM1125H
427 select SWAP_IO_SPACE
428 select SYS_HAS_CPU_SB1
429 select SYS_SUPPORTS_BIG_ENDIAN
430 select SYS_SUPPORTS_LITTLE_ENDIAN
432 config SIBYTE_SWARM
433 bool "Sibyte BCM91250A-SWARM"
434 select BOOT_ELF32
435 select DMA_COHERENT
436 select NR_CPUS_DEFAULT_2
437 select SIBYTE_SB1250
438 select SWAP_IO_SPACE
439 select SYS_HAS_CPU_SB1
440 select SYS_SUPPORTS_BIG_ENDIAN
441 select SYS_SUPPORTS_HIGHMEM
442 select SYS_SUPPORTS_KGDB
443 select SYS_SUPPORTS_LITTLE_ENDIAN
445 config SIBYTE_LITTLESUR
446 bool "Sibyte BCM91250C2-LittleSur"
447 depends on EXPERIMENTAL
448 select BOOT_ELF32
449 select DMA_COHERENT
450 select NR_CPUS_DEFAULT_2
451 select SIBYTE_SB1250
452 select SWAP_IO_SPACE
453 select SYS_HAS_CPU_SB1
454 select SYS_SUPPORTS_BIG_ENDIAN
455 select SYS_SUPPORTS_HIGHMEM
456 select SYS_SUPPORTS_LITTLE_ENDIAN
458 config SIBYTE_SENTOSA
459 bool "Sibyte BCM91250E-Sentosa"
460 depends on EXPERIMENTAL
461 select BOOT_ELF32
462 select DMA_COHERENT
463 select NR_CPUS_DEFAULT_2
464 select SIBYTE_SB1250
465 select SWAP_IO_SPACE
466 select SYS_HAS_CPU_SB1
467 select SYS_SUPPORTS_BIG_ENDIAN
468 select SYS_SUPPORTS_LITTLE_ENDIAN
470 config SIBYTE_PTSWARM
471 bool "Sibyte BCM91250PT-PTSWARM"
472 depends on EXPERIMENTAL
473 select BOOT_ELF32
474 select DMA_COHERENT
475 select NR_CPUS_DEFAULT_2
476 select SIBYTE_SB1250
477 select SWAP_IO_SPACE
478 select SYS_HAS_CPU_SB1
479 select SYS_SUPPORTS_BIG_ENDIAN
480 select SYS_SUPPORTS_HIGHMEM
481 select SYS_SUPPORTS_LITTLE_ENDIAN
483 config SIBYTE_BIGSUR
484 bool "Sibyte BCM91480B-BigSur"
485 select BOOT_ELF32
486 select DMA_COHERENT
487 select NR_CPUS_DEFAULT_4
488 select PCI_DOMAINS
489 select SIBYTE_BCM1x80
490 select SWAP_IO_SPACE
491 select SYS_HAS_CPU_SB1
492 select SYS_SUPPORTS_BIG_ENDIAN
493 select SYS_SUPPORTS_LITTLE_ENDIAN
495 config SNI_RM
496 bool "SNI RM200/300/400"
497 select ARC if CPU_LITTLE_ENDIAN
498 select ARC32 if CPU_LITTLE_ENDIAN
499 select ARCH_MAY_HAVE_PC_FDC
500 select BOOT_ELF32
501 select DMA_NONCOHERENT
502 select GENERIC_ISA_DMA
503 select HW_HAS_EISA
504 select HW_HAS_PCI
505 select IRQ_CPU
506 select I8259
507 select ISA
508 select PCSPEAKER
509 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
510 select SYS_HAS_CPU_R4X00
511 select SYS_HAS_CPU_R5000
512 select SYS_HAS_CPU_R10000
513 select R5000_CPU_SCACHE
514 select SYS_HAS_EARLY_PRINTK
515 select SYS_SUPPORTS_32BIT_KERNEL
516 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
517 select SYS_SUPPORTS_BIG_ENDIAN
518 select SYS_SUPPORTS_HIGHMEM
519 select SYS_SUPPORTS_LITTLE_ENDIAN
520 help
521 The SNI RM200/300/400 are MIPS-based machines manufactured by
522 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
523 Technology and now in turn merged with Fujitsu. Say Y here to
524 support this machine type.
526 config TOSHIBA_JMR3927
527 bool "Toshiba JMR-TX3927 board"
528 select DMA_NONCOHERENT
529 select HW_HAS_PCI
530 select MIPS_TX3927
531 select IRQ_TXX9
532 select SWAP_IO_SPACE
533 select SYS_HAS_CPU_TX39XX
534 select SYS_SUPPORTS_32BIT_KERNEL
535 select SYS_SUPPORTS_LITTLE_ENDIAN
536 select SYS_SUPPORTS_BIG_ENDIAN
537 select GENERIC_HARDIRQS_NO__DO_IRQ
539 config TOSHIBA_RBTX4927
540 bool "Toshiba RBTX49[23]7 board"
541 select DMA_NONCOHERENT
542 select HAS_TXX9_SERIAL
543 select HW_HAS_PCI
544 select IRQ_CPU
545 select IRQ_TXX9
546 select I8259 if TOSHIBA_FPCIB0
547 select SWAP_IO_SPACE
548 select SYS_HAS_CPU_TX49XX
549 select SYS_SUPPORTS_32BIT_KERNEL
550 select SYS_SUPPORTS_64BIT_KERNEL
551 select SYS_SUPPORTS_LITTLE_ENDIAN
552 select SYS_SUPPORTS_BIG_ENDIAN
553 select SYS_SUPPORTS_KGDB
554 select GENERIC_HARDIRQS_NO__DO_IRQ
555 help
556 This Toshiba board is based on the TX4927 processor. Say Y here to
557 support this machine type
559 config TOSHIBA_RBTX4938
560 bool "Toshiba RBTX4938 board"
561 select DMA_NONCOHERENT
562 select HAS_TXX9_SERIAL
563 select HW_HAS_PCI
564 select IRQ_CPU
565 select IRQ_TXX9
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_TX49XX
568 select SYS_SUPPORTS_32BIT_KERNEL
569 select SYS_SUPPORTS_LITTLE_ENDIAN
570 select SYS_SUPPORTS_BIG_ENDIAN
571 select SYS_SUPPORTS_KGDB
572 select GENERIC_HARDIRQS_NO__DO_IRQ
573 select GENERIC_GPIO
574 help
575 This Toshiba board is based on the TX4938 processor. Say Y here to
576 support this machine type
578 config WR_PPMC
579 bool "Wind River PPMC board"
580 select IRQ_CPU
581 select BOOT_ELF32
582 select DMA_NONCOHERENT
583 select HW_HAS_PCI
584 select PCI_GT64XXX_PCI0
585 select SWAP_IO_SPACE
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_HAS_CPU_MIPS64_R1
589 select SYS_HAS_CPU_NEVADA
590 select SYS_HAS_CPU_RM7000
591 select SYS_SUPPORTS_32BIT_KERNEL
592 select SYS_SUPPORTS_64BIT_KERNEL
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select SYS_SUPPORTS_LITTLE_ENDIAN
595 help
596 This enables support for the Wind River MIPS32 4KC PPMC evaluation
597 board, which is based on GT64120 bridge chip.
599 endchoice
601 source "arch/mips/au1000/Kconfig"
602 source "arch/mips/jazz/Kconfig"
603 source "arch/mips/pmc-sierra/Kconfig"
604 source "arch/mips/sgi-ip27/Kconfig"
605 source "arch/mips/sibyte/Kconfig"
606 source "arch/mips/tx4927/Kconfig"
607 source "arch/mips/tx4938/Kconfig"
608 source "arch/mips/vr41xx/Kconfig"
610 endmenu
612 config RWSEM_GENERIC_SPINLOCK
613 bool
614 default y
616 config RWSEM_XCHGADD_ALGORITHM
617 bool
619 config ARCH_HAS_ILOG2_U32
620 bool
621 default n
623 config ARCH_HAS_ILOG2_U64
624 bool
625 default n
627 config GENERIC_FIND_NEXT_BIT
628 bool
629 default y
631 config GENERIC_HWEIGHT
632 bool
633 default y
635 config GENERIC_CALIBRATE_DELAY
636 bool
637 default y
639 config GENERIC_TIME
640 bool
641 default y
643 config SCHED_NO_NO_OMIT_FRAME_POINTER
644 bool
645 default y
647 config GENERIC_HARDIRQS_NO__DO_IRQ
648 bool
649 default n
651 #
652 # Select some configuration options automatically based on user selections.
653 #
654 config ARC
655 bool
657 config ARCH_MAY_HAVE_PC_FDC
658 bool
660 config BOOT_RAW
661 bool
663 config DMA_COHERENT
664 bool
666 config DMA_IP27
667 bool
669 config DMA_IP32
670 bool
671 select DMA_NEED_PCI_MAP_STATE
673 config DMA_NONCOHERENT
674 bool
675 select DMA_NEED_PCI_MAP_STATE
677 config DMA_NEED_PCI_MAP_STATE
678 bool
680 config EARLY_PRINTK
681 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
682 depends on SYS_HAS_EARLY_PRINTK
683 default y
684 help
685 This option enables special console drivers which allow the kernel
686 to print messages very early in the bootup process.
688 This is useful for kernel debugging when your machine crashes very
689 early before the console code is initialized. For normal operation,
690 it is not recommended because it looks ugly on some machines and
691 doesn't cooperate with an X server. You should normally say N here,
692 unless you want to debug such a crash.
694 config SYS_HAS_EARLY_PRINTK
695 bool
697 config GENERIC_ISA_DMA
698 bool
699 select ZONE_DMA
701 config I8259
702 bool
704 config MIPS_BONITO64
705 bool
707 config MIPS_MSC
708 bool
710 config MIPS_DISABLE_OBSOLETE_IDE
711 bool
713 config NO_IOPORT
714 def_bool n
716 config GENERIC_ISA_DMA_SUPPORT_BROKEN
717 bool
718 select ZONE_DMA
720 config GENERIC_GPIO
721 bool
723 #
724 # Endianess selection. Sufficiently obscure so many users don't know what to
725 # answer,so we try hard to limit the available choices. Also the use of a
726 # choice statement should be more obvious to the user.
727 #
728 choice
729 prompt "Endianess selection"
730 help
731 Some MIPS machines can be configured for either little or big endian
732 byte order. These modes require different kernels and a different
733 Linux distribution. In general there is one preferred byteorder for a
734 particular system but some systems are just as commonly used in the
735 one or the other endianness.
737 config CPU_BIG_ENDIAN
738 bool "Big endian"
739 depends on SYS_SUPPORTS_BIG_ENDIAN
741 config CPU_LITTLE_ENDIAN
742 bool "Little endian"
743 depends on SYS_SUPPORTS_LITTLE_ENDIAN
744 help
746 endchoice
748 config SYS_SUPPORTS_APM_EMULATION
749 bool
751 config SYS_SUPPORTS_BIG_ENDIAN
752 bool
754 config SYS_SUPPORTS_LITTLE_ENDIAN
755 bool
757 config IRQ_CPU
758 bool
760 config IRQ_CPU_RM7K
761 bool
763 config IRQ_CPU_RM9K
764 bool
766 config IRQ_MSP_SLP
767 bool
769 config IRQ_MSP_CIC
770 bool
772 config IRQ_TXX9
773 bool
775 config MIPS_BOARDS_GEN
776 bool
778 config PCI_GT64XXX_PCI0
779 bool
781 config NO_EXCEPT_FILL
782 bool
784 config MIPS_TX3927
785 bool
786 select HAS_TXX9_SERIAL
788 config MIPS_RM9122
789 bool
790 select SERIAL_RM9000
792 config PNX8550
793 bool
794 select SOC_PNX8550
796 config SOC_PNX8550
797 bool
798 select DMA_NONCOHERENT
799 select HW_HAS_PCI
800 select SYS_HAS_CPU_MIPS32_R1
801 select SYS_HAS_EARLY_PRINTK
802 select SYS_SUPPORTS_32BIT_KERNEL
803 select GENERIC_HARDIRQS_NO__DO_IRQ
804 select SYS_SUPPORTS_KGDB
805 select GENERIC_GPIO
807 config SWAP_IO_SPACE
808 bool
810 config EMMA2RH
811 bool
812 depends on MARKEINS
813 default y
815 config SERIAL_RM9000
816 bool
818 #
819 # Unfortunately not all GT64120 systems run the chip at the same clock.
820 # As the user for the clock rate and try to minimize the available options.
821 #
822 choice
823 prompt "Galileo Chip Clock"
824 depends on MOMENCO_OCELOT
825 default SYSCLK_100 if MOMENCO_OCELOT
827 config SYSCLK_100
828 bool "100" if MOMENCO_OCELOT
830 endchoice
832 config ARC32
833 bool
835 config BOOT_ELF32
836 bool
838 config MIPS_L1_CACHE_SHIFT
839 int
840 default "4" if MACH_DECSTATION
841 default "7" if SGI_IP27 || SNI_RM
842 default "4" if PMC_MSP4200_EVAL
843 default "5"
845 config HAVE_STD_PC_SERIAL_PORT
846 bool
848 config ARC_CONSOLE
849 bool "ARC console support"
850 depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)
852 config ARC_MEMORY
853 bool
854 depends on MACH_JAZZ || SNI_RM || SGI_IP32
855 default y
857 config ARC_PROMLIB
858 bool
859 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP32
860 default y
862 config ARC64
863 bool
865 config BOOT_ELF64
866 bool
868 menu "CPU selection"
870 choice
871 prompt "CPU type"
872 default CPU_R4X00
874 config CPU_LOONGSON2
875 bool "Loongson 2"
876 depends on SYS_HAS_CPU_LOONGSON2
877 select CPU_SUPPORTS_32BIT_KERNEL
878 select CPU_SUPPORTS_64BIT_KERNEL
879 select CPU_SUPPORTS_HIGHMEM
880 help
881 The Loongson 2E processor implements the MIPS III instruction set
882 with many extensions.
884 config CPU_MIPS32_R1
885 bool "MIPS32 Release 1"
886 depends on SYS_HAS_CPU_MIPS32_R1
887 select CPU_HAS_LLSC
888 select CPU_HAS_PREFETCH
889 select CPU_SUPPORTS_32BIT_KERNEL
890 select CPU_SUPPORTS_HIGHMEM
891 help
892 Choose this option to build a kernel for release 1 or later of the
893 MIPS32 architecture. Most modern embedded systems with a 32-bit
894 MIPS processor are based on a MIPS32 processor. If you know the
895 specific type of processor in your system, choose those that one
896 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
897 Release 2 of the MIPS32 architecture is available since several
898 years so chances are you even have a MIPS32 Release 2 processor
899 in which case you should choose CPU_MIPS32_R2 instead for better
900 performance.
902 config CPU_MIPS32_R2
903 bool "MIPS32 Release 2"
904 depends on SYS_HAS_CPU_MIPS32_R2
905 select CPU_HAS_LLSC
906 select CPU_HAS_PREFETCH
907 select CPU_SUPPORTS_32BIT_KERNEL
908 select CPU_SUPPORTS_HIGHMEM
909 help
910 Choose this option to build a kernel for release 2 or later of the
911 MIPS32 architecture. Most modern embedded systems with a 32-bit
912 MIPS processor are based on a MIPS32 processor. If you know the
913 specific type of processor in your system, choose those that one
914 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
916 config CPU_MIPS64_R1
917 bool "MIPS64 Release 1"
918 depends on SYS_HAS_CPU_MIPS64_R1
919 select CPU_HAS_LLSC
920 select CPU_HAS_PREFETCH
921 select CPU_SUPPORTS_32BIT_KERNEL
922 select CPU_SUPPORTS_64BIT_KERNEL
923 select CPU_SUPPORTS_HIGHMEM
924 help
925 Choose this option to build a kernel for release 1 or later of the
926 MIPS64 architecture. Many modern embedded systems with a 64-bit
927 MIPS processor are based on a MIPS64 processor. If you know the
928 specific type of processor in your system, choose those that one
929 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
930 Release 2 of the MIPS64 architecture is available since several
931 years so chances are you even have a MIPS64 Release 2 processor
932 in which case you should choose CPU_MIPS64_R2 instead for better
933 performance.
935 config CPU_MIPS64_R2
936 bool "MIPS64 Release 2"
937 depends on SYS_HAS_CPU_MIPS64_R2
938 select CPU_HAS_LLSC
939 select CPU_HAS_PREFETCH
940 select CPU_SUPPORTS_32BIT_KERNEL
941 select CPU_SUPPORTS_64BIT_KERNEL
942 select CPU_SUPPORTS_HIGHMEM
943 help
944 Choose this option to build a kernel for release 2 or later of the
945 MIPS64 architecture. Many modern embedded systems with a 64-bit
946 MIPS processor are based on a MIPS64 processor. If you know the
947 specific type of processor in your system, choose those that one
948 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
950 config CPU_R3000
951 bool "R3000"
952 depends on SYS_HAS_CPU_R3000
953 select CPU_HAS_WB
954 select CPU_SUPPORTS_32BIT_KERNEL
955 select CPU_SUPPORTS_HIGHMEM
956 help
957 Please make sure to pick the right CPU type. Linux/MIPS is not
958 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
959 *not* work on R4000 machines and vice versa. However, since most
960 of the supported machines have an R4000 (or similar) CPU, R4x00
961 might be a safe bet. If the resulting kernel does not work,
962 try to recompile with R3000.
964 config CPU_TX39XX
965 bool "R39XX"
966 depends on SYS_HAS_CPU_TX39XX
967 select CPU_SUPPORTS_32BIT_KERNEL
969 config CPU_VR41XX
970 bool "R41xx"
971 depends on SYS_HAS_CPU_VR41XX
972 select CPU_SUPPORTS_32BIT_KERNEL
973 select CPU_SUPPORTS_64BIT_KERNEL
974 help
975 The options selects support for the NEC VR4100 series of processors.
976 Only choose this option if you have one of these processors as a
977 kernel built with this option will not run on any other type of
978 processor or vice versa.
980 config CPU_R4300
981 bool "R4300"
982 depends on SYS_HAS_CPU_R4300
983 select CPU_HAS_LLSC
984 select CPU_SUPPORTS_32BIT_KERNEL
985 select CPU_SUPPORTS_64BIT_KERNEL
986 help
987 MIPS Technologies R4300-series processors.
989 config CPU_R4X00
990 bool "R4x00"
991 depends on SYS_HAS_CPU_R4X00
992 select CPU_HAS_LLSC
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_64BIT_KERNEL
995 help
996 MIPS Technologies R4000-series processors other than 4300, including
997 the R4000, R4400, R4600, and 4700.
999 config CPU_TX49XX
1000 bool "R49XX"
1001 depends on SYS_HAS_CPU_TX49XX
1002 select CPU_HAS_LLSC
1003 select CPU_HAS_PREFETCH
1004 select CPU_SUPPORTS_32BIT_KERNEL
1005 select CPU_SUPPORTS_64BIT_KERNEL
1007 config CPU_R5000
1008 bool "R5000"
1009 depends on SYS_HAS_CPU_R5000
1010 select CPU_HAS_LLSC
1011 select CPU_SUPPORTS_32BIT_KERNEL
1012 select CPU_SUPPORTS_64BIT_KERNEL
1013 help
1014 MIPS Technologies R5000-series processors other than the Nevada.
1016 config CPU_R5432
1017 bool "R5432"
1018 depends on SYS_HAS_CPU_R5432
1019 select CPU_HAS_LLSC
1020 select CPU_SUPPORTS_32BIT_KERNEL
1021 select CPU_SUPPORTS_64BIT_KERNEL
1023 config CPU_R6000
1024 bool "R6000"
1025 depends on EXPERIMENTAL
1026 select CPU_HAS_LLSC
1027 depends on SYS_HAS_CPU_R6000
1028 select CPU_SUPPORTS_32BIT_KERNEL
1029 help
1030 MIPS Technologies R6000 and R6000A series processors. Note these
1031 processors are extremely rare and the support for them is incomplete.
1033 config CPU_NEVADA
1034 bool "RM52xx"
1035 depends on SYS_HAS_CPU_NEVADA
1036 select CPU_HAS_LLSC
1037 select CPU_SUPPORTS_32BIT_KERNEL
1038 select CPU_SUPPORTS_64BIT_KERNEL
1039 help
1040 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1042 config CPU_R8000
1043 bool "R8000"
1044 depends on EXPERIMENTAL
1045 depends on SYS_HAS_CPU_R8000
1046 select CPU_HAS_LLSC
1047 select CPU_HAS_PREFETCH
1048 select CPU_SUPPORTS_64BIT_KERNEL
1049 help
1050 MIPS Technologies R8000 processors. Note these processors are
1051 uncommon and the support for them is incomplete.
1053 config CPU_R10000
1054 bool "R10000"
1055 depends on SYS_HAS_CPU_R10000
1056 select CPU_HAS_LLSC
1057 select CPU_HAS_PREFETCH
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
1060 select CPU_SUPPORTS_HIGHMEM
1061 help
1062 MIPS Technologies R10000-series processors.
1064 config CPU_RM7000
1065 bool "RM7000"
1066 depends on SYS_HAS_CPU_RM7000
1067 select CPU_HAS_LLSC
1068 select CPU_HAS_PREFETCH
1069 select CPU_SUPPORTS_32BIT_KERNEL
1070 select CPU_SUPPORTS_64BIT_KERNEL
1071 select CPU_SUPPORTS_HIGHMEM
1073 config CPU_RM9000
1074 bool "RM9000"
1075 depends on SYS_HAS_CPU_RM9000
1076 select CPU_HAS_LLSC
1077 select CPU_HAS_PREFETCH
1078 select CPU_SUPPORTS_32BIT_KERNEL
1079 select CPU_SUPPORTS_64BIT_KERNEL
1080 select CPU_SUPPORTS_HIGHMEM
1081 select WEAK_ORDERING
1083 config CPU_SB1
1084 bool "SB1"
1085 depends on SYS_HAS_CPU_SB1
1086 select CPU_HAS_LLSC
1087 select CPU_SUPPORTS_32BIT_KERNEL
1088 select CPU_SUPPORTS_64BIT_KERNEL
1089 select CPU_SUPPORTS_HIGHMEM
1090 select WEAK_ORDERING
1092 endchoice
1094 config SYS_HAS_CPU_LOONGSON2
1095 bool
1097 config SYS_HAS_CPU_MIPS32_R1
1098 bool
1100 config SYS_HAS_CPU_MIPS32_R2
1101 bool
1103 config SYS_HAS_CPU_MIPS64_R1
1104 bool
1106 config SYS_HAS_CPU_MIPS64_R2
1107 bool
1109 config SYS_HAS_CPU_R3000
1110 bool
1112 config SYS_HAS_CPU_TX39XX
1113 bool
1115 config SYS_HAS_CPU_VR41XX
1116 bool
1118 config SYS_HAS_CPU_R4300
1119 bool
1121 config SYS_HAS_CPU_R4X00
1122 bool
1124 config SYS_HAS_CPU_TX49XX
1125 bool
1127 config SYS_HAS_CPU_R5000
1128 bool
1130 config SYS_HAS_CPU_R5432
1131 bool
1133 config SYS_HAS_CPU_R6000
1134 bool
1136 config SYS_HAS_CPU_NEVADA
1137 bool
1139 config SYS_HAS_CPU_R8000
1140 bool
1142 config SYS_HAS_CPU_R10000
1143 bool
1145 config SYS_HAS_CPU_RM7000
1146 bool
1148 config SYS_HAS_CPU_RM9000
1149 bool
1151 config SYS_HAS_CPU_SB1
1152 bool
1154 #
1155 # CPU may reorder R->R, R->W, W->R, W->W
1156 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1157 #
1158 config WEAK_ORDERING
1159 bool
1161 #
1162 # CPU may reorder reads and writes beyond LL/SC
1163 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1164 #
1165 config WEAK_REORDERING_BEYOND_LLSC
1166 bool
1167 endmenu
1169 #
1170 # These two indicate any level of the MIPS32 and MIPS64 architecture
1171 #
1172 config CPU_MIPS32
1173 bool
1174 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1176 config CPU_MIPS64
1177 bool
1178 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1180 #
1181 # These two indicate the revision of the architecture, either Release 1 or Release 2
1182 #
1183 config CPU_MIPSR1
1184 bool
1185 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1187 config CPU_MIPSR2
1188 bool
1189 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1191 config SYS_SUPPORTS_32BIT_KERNEL
1192 bool
1193 config SYS_SUPPORTS_64BIT_KERNEL
1194 bool
1195 config CPU_SUPPORTS_32BIT_KERNEL
1196 bool
1197 config CPU_SUPPORTS_64BIT_KERNEL
1198 bool
1200 menu "Kernel type"
1202 choice
1204 prompt "Kernel code model"
1205 help
1206 You should only select this option if you have a workload that
1207 actually benefits from 64-bit processing or if your machine has
1208 large memory. You will only be presented a single option in this
1209 menu if your system does not support both 32-bit and 64-bit kernels.
1211 config 32BIT
1212 bool "32-bit kernel"
1213 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1214 select TRAD_SIGNALS
1215 help
1216 Select this option if you want to build a 32-bit kernel.
1217 config 64BIT
1218 bool "64-bit kernel"
1219 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1220 help
1221 Select this option if you want to build a 64-bit kernel.
1223 endchoice
1225 choice
1226 prompt "Kernel page size"
1227 default PAGE_SIZE_4KB
1229 config PAGE_SIZE_4KB
1230 bool "4kB"
1231 help
1232 This option select the standard 4kB Linux page size. On some
1233 R3000-family processors this is the only available page size. Using
1234 4kB page size will minimize memory consumption and is therefore
1235 recommended for low memory systems.
1237 config PAGE_SIZE_8KB
1238 bool "8kB"
1239 depends on EXPERIMENTAL && CPU_R8000
1240 help
1241 Using 8kB page size will result in higher performance kernel at
1242 the price of higher memory consumption. This option is available
1243 only on the R8000 processor. Not that at the time of this writing
1244 this option is still high experimental; there are also issues with
1245 compatibility of user applications.
1247 config PAGE_SIZE_16KB
1248 bool "16kB"
1249 depends on !CPU_R3000 && !CPU_TX39XX
1250 help
1251 Using 16kB page size will result in higher performance kernel at
1252 the price of higher memory consumption. This option is available on
1253 all non-R3000 family processors. Note that you will need a suitable
1254 Linux distribution to support this.
1256 config PAGE_SIZE_64KB
1257 bool "64kB"
1258 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1259 help
1260 Using 64kB page size will result in higher performance kernel at
1261 the price of higher memory consumption. This option is available on
1262 all non-R3000 family processor. Not that at the time of this
1263 writing this option is still high experimental.
1265 endchoice
1267 config BOARD_SCACHE
1268 bool
1270 config IP22_CPU_SCACHE
1271 bool
1272 select BOARD_SCACHE
1274 #
1275 # Support for a MIPS32 / MIPS64 style S-caches
1276 #
1277 config MIPS_CPU_SCACHE
1278 bool
1279 select BOARD_SCACHE
1281 config R5000_CPU_SCACHE
1282 bool
1283 select BOARD_SCACHE
1285 config RM7000_CPU_SCACHE
1286 bool
1287 select BOARD_SCACHE
1289 config SIBYTE_DMA_PAGEOPS
1290 bool "Use DMA to clear/copy pages"
1291 depends on CPU_SB1
1292 help
1293 Instead of using the CPU to zero and copy pages, use a Data Mover
1294 channel. These DMA channels are otherwise unused by the standard
1295 SiByte Linux port. Seems to give a small performance benefit.
1297 config CPU_HAS_PREFETCH
1298 bool
1300 choice
1301 prompt "MIPS MT options"
1303 config MIPS_MT_DISABLED
1304 bool "Disable multithreading support."
1305 help
1306 Use this option if your workload can't take advantage of
1307 MIPS hardware multithreading support. On systems that don't have
1308 the option of an MT-enabled processor this option will be the only
1309 option in this menu.
1311 config MIPS_MT_SMP
1312 bool "Use 1 TC on each available VPE for SMP"
1313 depends on SYS_SUPPORTS_MULTITHREADING
1314 select CPU_MIPSR2_IRQ_VI
1315 select CPU_MIPSR2_IRQ_EI
1316 select CPU_MIPSR2_SRS
1317 select MIPS_MT
1318 select NR_CPUS_DEFAULT_2
1319 select SMP
1320 select SYS_SUPPORTS_SMP
1321 help
1322 This is a kernel model which is also known a VSMP or lately
1323 has been marketesed into SMVP.
1325 config MIPS_MT_SMTC
1326 bool "SMTC: Use all TCs on all VPEs for SMP"
1327 depends on CPU_MIPS32_R2
1328 #depends on CPU_MIPS64_R2 # once there is hardware ...
1329 depends on SYS_SUPPORTS_MULTITHREADING
1330 select CPU_MIPSR2_IRQ_VI
1331 select CPU_MIPSR2_IRQ_EI
1332 select CPU_MIPSR2_SRS
1333 select MIPS_MT
1334 select NR_CPUS_DEFAULT_8
1335 select SMP
1336 select SYS_SUPPORTS_SMP
1337 help
1338 This is a kernel model which is known a SMTC or lately has been
1339 marketesed into SMVP.
1341 endchoice
1343 config MIPS_MT
1344 bool
1346 config SYS_SUPPORTS_MULTITHREADING
1347 bool
1349 config MIPS_MT_FPAFF
1350 bool "Dynamic FPU affinity for FP-intensive threads"
1351 default y
1352 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1354 config MIPS_VPE_LOADER
1355 bool "VPE loader support."
1356 depends on SYS_SUPPORTS_MULTITHREADING
1357 select CPU_MIPSR2_IRQ_VI
1358 select CPU_MIPSR2_IRQ_EI
1359 select CPU_MIPSR2_SRS
1360 select MIPS_MT
1361 help
1362 Includes a loader for loading an elf relocatable object
1363 onto another VPE and running it.
1365 config MIPS_MT_SMTC_INSTANT_REPLAY
1366 bool "Low-latency Dispatch of Deferred SMTC IPIs"
1367 depends on MIPS_MT_SMTC && !PREEMPT
1368 default y
1369 help
1370 SMTC pseudo-interrupts between TCs are deferred and queued
1371 if the target TC is interrupt-inhibited (IXMT). In the first
1372 SMTC prototypes, these queued IPIs were serviced on return
1373 to user mode, or on entry into the kernel idle loop. The
1374 INSTANT_REPLAY option dispatches them as part of local_irq_restore()
1375 processing, which adds runtime overhead (hence the option to turn
1376 it off), but ensures that IPIs are handled promptly even under
1377 heavy I/O interrupt load.
1379 config MIPS_MT_SMTC_IM_BACKSTOP
1380 bool "Use per-TC register bits as backstop for inhibited IM bits"
1381 depends on MIPS_MT_SMTC
1382 default y
1383 help
1384 To support multiple TC microthreads acting as "CPUs" within
1385 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1386 during interrupt handling. To support legacy drivers and interrupt
1387 controller management code, SMTC has a "backstop" to track and
1388 if necessary restore the interrupt mask. This has some performance
1389 impact on interrupt service overhead. Disable it only if you know
1390 what you are doing.
1392 config MIPS_VPE_LOADER_TOM
1393 bool "Load VPE program into memory hidden from linux"
1394 depends on MIPS_VPE_LOADER
1395 default y
1396 help
1397 The loader can use memory that is present but has been hidden from
1398 Linux using the kernel command line option "mem=xxMB". It's up to
1399 you to ensure the amount you put in the option and the space your
1400 program requires is less or equal to the amount physically present.
1402 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1403 config MIPS_VPE_APSP_API
1404 bool "Enable support for AP/SP API (RTLX)"
1405 depends on MIPS_VPE_LOADER
1406 help
1408 config MIPS_APSP_KSPD
1409 bool "Enable KSPD"
1410 depends on MIPS_VPE_APSP_API
1411 default y
1412 help
1413 KSPD is a kernel daemon that accepts syscall requests from the SP
1414 side, actions them and returns the results. It also handles the
1415 "exit" syscall notifying other kernel modules the SP program is
1416 exiting. You probably want to say yes here.
1418 config SB1_PASS_1_WORKAROUNDS
1419 bool
1420 depends on CPU_SB1_PASS_1
1421 default y
1423 config SB1_PASS_2_WORKAROUNDS
1424 bool
1425 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1426 default y
1428 config SB1_PASS_2_1_WORKAROUNDS
1429 bool
1430 depends on CPU_SB1 && CPU_SB1_PASS_2
1431 default y
1433 config 64BIT_PHYS_ADDR
1434 bool
1436 config CPU_HAS_LLSC
1437 bool
1439 config CPU_HAS_SMARTMIPS
1440 depends on SYS_SUPPORTS_SMARTMIPS
1441 bool "Support for the SmartMIPS ASE"
1442 help
1443 SmartMIPS is a extension of the MIPS32 architecture aimed at
1444 increased security at both hardware and software level for
1445 smartcards. Enabling this option will allow proper use of the
1446 SmartMIPS instructions by Linux applications. However a kernel with
1447 this option will not work on a MIPS core without SmartMIPS core. If
1448 you don't know you probably don't have SmartMIPS and should say N
1449 here.
1451 config CPU_HAS_WB
1452 bool
1454 config 64BIT_CONTEXT
1455 bool "Save 64bit integer registers"
1456 depends on 32BIT && CPU_LOONGSON2
1457 help
1458 Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
1459 registers can still be accessed as 64bit, mainly for multimedia
1460 instructions. We must have all 64bit save/restored to make sure
1461 those instructions to get correct result.
1463 #
1464 # Vectored interrupt mode is an R2 feature
1465 #
1466 config CPU_MIPSR2_IRQ_VI
1467 bool
1469 #
1470 # Extended interrupt mode is an R2 feature
1471 #
1472 config CPU_MIPSR2_IRQ_EI
1473 bool
1475 #
1476 # Shadow registers are an R2 feature
1477 #
1478 config CPU_MIPSR2_SRS
1479 bool
1481 config CPU_HAS_SYNC
1482 bool
1483 depends on !CPU_R3000
1484 default y
1486 #
1487 # Use the generic interrupt handling code in kernel/irq/:
1488 #
1489 config GENERIC_HARDIRQS
1490 bool
1491 default y
1493 config GENERIC_IRQ_PROBE
1494 bool
1495 default y
1497 config IRQ_PER_CPU
1498 bool
1500 #
1501 # - Highmem only makes sense for the 32-bit kernel.
1502 # - The current highmem code will only work properly on physically indexed
1503 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1504 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1505 # moment we protect the user and offer the highmem option only on machines
1506 # where it's known to be safe. This will not offer highmem on a few systems
1507 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1508 # indexed CPUs but we're playing safe.
1509 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1510 # know they might have memory configurations that could make use of highmem
1511 # support.
1512 #
1513 config HIGHMEM
1514 bool "High Memory Support"
1515 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1517 config CPU_SUPPORTS_HIGHMEM
1518 bool
1520 config SYS_SUPPORTS_HIGHMEM
1521 bool
1523 config SYS_SUPPORTS_SMARTMIPS
1524 bool
1526 config ARCH_FLATMEM_ENABLE
1527 def_bool y
1528 depends on !NUMA
1530 config ARCH_DISCONTIGMEM_ENABLE
1531 bool
1532 default y if SGI_IP27
1533 help
1534 Say Y to support efficient handling of discontiguous physical memory,
1535 for architectures which are either NUMA (Non-Uniform Memory Access)
1536 or have huge holes in the physical address space for other reasons.
1537 See <file:Documentation/vm/numa> for more.
1539 config ARCH_SPARSEMEM_ENABLE
1540 bool
1541 select SPARSEMEM_STATIC
1543 config NUMA
1544 bool "NUMA Support"
1545 depends on SYS_SUPPORTS_NUMA
1546 help
1547 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1548 Access). This option improves performance on systems with more
1549 than two nodes; on two node systems it is generally better to
1550 leave it disabled; on single node systems disable this option
1551 disabled.
1553 config SYS_SUPPORTS_NUMA
1554 bool
1556 config NODES_SHIFT
1557 int
1558 default "6"
1559 depends on NEED_MULTIPLE_NODES
1561 source "mm/Kconfig"
1563 config SMP
1564 bool "Multi-Processing support"
1565 depends on SYS_SUPPORTS_SMP
1566 select IRQ_PER_CPU
1567 help
1568 This enables support for systems with more than one CPU. If you have
1569 a system with only one CPU, like most personal computers, say N. If
1570 you have a system with more than one CPU, say Y.
1572 If you say N here, the kernel will run on single and multiprocessor
1573 machines, but will use only one CPU of a multiprocessor machine. If
1574 you say Y here, the kernel will run on many, but not all,
1575 singleprocessor machines. On a singleprocessor machine, the kernel
1576 will run faster if you say N here.
1578 People using multiprocessor machines who say Y here should also say
1579 Y to "Enhanced Real Time Clock Support", below.
1581 See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1582 available at <http://www.tldp.org/docs.html#howto>.
1584 If you don't know what to do here, say N.
1586 config SYS_SUPPORTS_SMP
1587 bool
1589 config NR_CPUS_DEFAULT_1
1590 bool
1592 config NR_CPUS_DEFAULT_2
1593 bool
1595 config NR_CPUS_DEFAULT_4
1596 bool
1598 config NR_CPUS_DEFAULT_8
1599 bool
1601 config NR_CPUS_DEFAULT_16
1602 bool
1604 config NR_CPUS_DEFAULT_32
1605 bool
1607 config NR_CPUS_DEFAULT_64
1608 bool
1610 config NR_CPUS
1611 int "Maximum number of CPUs (2-64)"
1612 range 1 64 if NR_CPUS_DEFAULT_1
1613 depends on SMP
1614 default "1" if NR_CPUS_DEFAULT_1
1615 default "2" if NR_CPUS_DEFAULT_2
1616 default "4" if NR_CPUS_DEFAULT_4
1617 default "8" if NR_CPUS_DEFAULT_8
1618 default "16" if NR_CPUS_DEFAULT_16
1619 default "32" if NR_CPUS_DEFAULT_32
1620 default "64" if NR_CPUS_DEFAULT_64
1621 help
1622 This allows you to specify the maximum number of CPUs which this
1623 kernel will support. The maximum supported value is 32 for 32-bit
1624 kernel and 64 for 64-bit kernels; the minimum value which makes
1625 sense is 1 for Qemu (useful only for kernel debugging purposes)
1626 and 2 for all others.
1628 This is purely to save memory - each supported CPU adds
1629 approximately eight kilobytes to the kernel image. For best
1630 performance should round up your number of processors to the next
1631 power of two.
1633 #
1634 # Timer Interrupt Frequency Configuration
1635 #
1637 choice
1638 prompt "Timer frequency"
1639 default HZ_250
1640 help
1641 Allows the configuration of the timer frequency.
1643 config HZ_48
1644 bool "48 HZ" if SYS_SUPPORTS_48HZ
1646 config HZ_100
1647 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1649 config HZ_128
1650 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1652 config HZ_250
1653 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1655 config HZ_256
1656 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1658 config HZ_1000
1659 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1661 config HZ_1024
1662 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1664 endchoice
1666 config SYS_SUPPORTS_48HZ
1667 bool
1669 config SYS_SUPPORTS_100HZ
1670 bool
1672 config SYS_SUPPORTS_128HZ
1673 bool
1675 config SYS_SUPPORTS_250HZ
1676 bool
1678 config SYS_SUPPORTS_256HZ
1679 bool
1681 config SYS_SUPPORTS_1000HZ
1682 bool
1684 config SYS_SUPPORTS_1024HZ
1685 bool
1687 config SYS_SUPPORTS_ARBIT_HZ
1688 bool
1689 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1690 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1691 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1692 !SYS_SUPPORTS_1024HZ
1694 config HZ
1695 int
1696 default 48 if HZ_48
1697 default 100 if HZ_100
1698 default 128 if HZ_128
1699 default 250 if HZ_250
1700 default 256 if HZ_256
1701 default 1000 if HZ_1000
1702 default 1024 if HZ_1024
1704 source "kernel/Kconfig.preempt"
1706 config MIPS_INSANE_LARGE
1707 bool "Support for large 64-bit configurations"
1708 depends on CPU_R10000 && 64BIT
1709 help
1710 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1711 previous 64-bit processors which only supported 40 bit / 1TB. If you
1712 need processes of more than 1TB virtual address space, say Y here.
1713 This will result in additional memory usage, so it is not
1714 recommended for normal users.
1716 config KEXEC
1717 bool "Kexec system call (EXPERIMENTAL)"
1718 depends on EXPERIMENTAL
1719 help
1720 kexec is a system call that implements the ability to shutdown your
1721 current kernel, and to start another kernel. It is like a reboot
1722 but it is independent of the system firmware. And like a reboot
1723 you can start any kernel with it, not just Linux.
1725 The name comes from the similiarity to the exec system call.
1727 It is an ongoing process to be certain the hardware in a machine
1728 is properly shutdown, so do not be surprised if this code does not
1729 initially work for you. It may help to enable device hotplugging
1730 support. As of this writing the exact hardware interface is
1731 strongly in flux, so no good recommendation can be made.
1733 config SECCOMP
1734 bool "Enable seccomp to safely compute untrusted bytecode"
1735 depends on PROC_FS
1736 default y
1737 help
1738 This kernel feature is useful for number crunching applications
1739 that may need to compute untrusted bytecode during their
1740 execution. By using pipes or other transports made available to
1741 the process as file descriptors supporting the read/write
1742 syscalls, it's possible to isolate those applications in
1743 their own address space using seccomp. Once seccomp is
1744 enabled via /proc/<pid>/seccomp, it cannot be disabled
1745 and the task is only allowed to execute a few safe syscalls
1746 defined by each seccomp mode.
1748 If unsure, say Y. Only embedded should say N here.
1750 endmenu
1752 config RWSEM_GENERIC_SPINLOCK
1753 bool
1754 default y
1756 config LOCKDEP_SUPPORT
1757 bool
1758 default y
1760 config STACKTRACE_SUPPORT
1761 bool
1762 default y
1764 source "init/Kconfig"
1766 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1768 config HW_HAS_EISA
1769 bool
1770 config HW_HAS_PCI
1771 bool
1773 config PCI
1774 bool "Support for PCI controller"
1775 depends on HW_HAS_PCI
1776 help
1777 Find out whether you have a PCI motherboard. PCI is the name of a
1778 bus system, i.e. the way the CPU talks to the other stuff inside
1779 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1780 say Y, otherwise N.
1782 The PCI-HOWTO, available from
1783 <http://www.tldp.org/docs.html#howto>, contains valuable
1784 information about which PCI hardware does work under Linux and which
1785 doesn't.
1787 config PCI_DOMAINS
1788 bool
1789 depends on PCI
1791 source "drivers/pci/Kconfig"
1793 #
1794 # ISA support is now enabled via select. Too many systems still have the one
1795 # or other ISA chip on the board that users don't know about so don't expect
1796 # users to choose the right thing ...
1797 #
1798 config ISA
1799 bool
1801 config EISA
1802 bool "EISA support"
1803 depends on HW_HAS_EISA
1804 select ISA
1805 select GENERIC_ISA_DMA
1806 ---help---
1807 The Extended Industry Standard Architecture (EISA) bus was
1808 developed as an open alternative to the IBM MicroChannel bus.
1810 The EISA bus provided some of the features of the IBM MicroChannel
1811 bus while maintaining backward compatibility with cards made for
1812 the older ISA bus. The EISA bus saw limited use between 1988 and
1813 1995 when it was made obsolete by the PCI bus.
1815 Say Y here if you are building a kernel for an EISA-based machine.
1817 Otherwise, say N.
1819 source "drivers/eisa/Kconfig"
1821 config TC
1822 bool "TURBOchannel support"
1823 depends on MACH_DECSTATION
1824 help
1825 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1826 processors. Documentation on writing device drivers for TurboChannel
1827 is available at:
1828 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1830 #config ACCESSBUS
1831 # bool "Access.Bus support"
1832 # depends on TC
1834 config MMU
1835 bool
1836 default y
1838 config PCSPEAKER
1839 bool
1841 source "drivers/pcmcia/Kconfig"
1843 source "drivers/pci/hotplug/Kconfig"
1845 endmenu
1847 menu "Executable file formats"
1849 source "fs/Kconfig.binfmt"
1851 config TRAD_SIGNALS
1852 bool
1854 config BUILD_ELF64
1855 bool "Use 64-bit ELF format for building"
1856 depends on 64BIT
1857 help
1858 A 64-bit kernel is usually built using the 64-bit ELF binary object
1859 format as it's one that allows arbitrary 64-bit constructs. For
1860 kernels that are loaded within the KSEG compatibility segments the
1861 32-bit ELF format can optionally be used resulting in a somewhat
1862 smaller binary, but this option is not explicitly supported by the
1863 toolchain and since binutils 2.14 it does not even work at all.
1865 Say Y to use the 64-bit format or N to use the 32-bit one.
1867 If unsure say Y.
1869 config BINFMT_IRIX
1870 bool "Include IRIX binary compatibility"
1871 depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
1873 config MIPS32_COMPAT
1874 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1875 depends on 64BIT
1876 help
1877 Select this option if you want Linux/MIPS 32-bit binary
1878 compatibility. Since all software available for Linux/MIPS is
1879 currently 32-bit you should say Y here.
1881 config COMPAT
1882 bool
1883 depends on MIPS32_COMPAT
1884 default y
1886 config SYSVIPC_COMPAT
1887 bool
1888 depends on COMPAT && SYSVIPC
1889 default y
1891 config MIPS32_O32
1892 bool "Kernel support for o32 binaries"
1893 depends on MIPS32_COMPAT
1894 help
1895 Select this option if you want to run o32 binaries. These are pure
1896 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1897 existing binaries are in this format.
1899 If unsure, say Y.
1901 config MIPS32_N32
1902 bool "Kernel support for n32 binaries"
1903 depends on MIPS32_COMPAT
1904 help
1905 Select this option if you want to run n32 binaries. These are
1906 64-bit binaries using 32-bit quantities for addressing and certain
1907 data that would normally be 64-bit. They are used in special
1908 cases.
1910 If unsure, say N.
1912 config BINFMT_ELF32
1913 bool
1914 default y if MIPS32_O32 || MIPS32_N32
1916 endmenu
1918 menu "Power management options"
1920 source "kernel/power/Kconfig"
1922 endmenu
1924 source "net/Kconfig"
1926 source "drivers/Kconfig"
1928 source "fs/Kconfig"
1930 source "arch/mips/oprofile/Kconfig"
1932 source "arch/mips/Kconfig.debug"
1934 source "security/Kconfig"
1936 source "crypto/Kconfig"
1938 source "lib/Kconfig"