| blob | a5255e7c79e004001a8f55c82e33d964198b403f |
1 config MIPS
2 bool
3 default y
4 select HAVE_IDE
5 select HAVE_OPROFILE
6 select HAVE_ARCH_KGDB
7 # Horrible source of confusion. Die, die, die ...
8 select EMBEDDED
9 select RTC_LIB
11 mainmenu "Linux/MIPS Kernel Configuration"
13 menu "Machine selection"
15 config ZONE_DMA
16 bool
18 choice
19 prompt "System type"
20 default SGI_IP22
22 config MACH_ALCHEMY
23 bool "Alchemy processor based machines"
25 config BASLER_EXCITE
26 bool "Basler eXcite smart camera"
27 select CEVT_R4K
28 select CSRC_R4K
29 select DMA_COHERENT
30 select HW_HAS_PCI
31 select IRQ_CPU
32 select IRQ_CPU_RM7K
33 select IRQ_CPU_RM9K
34 select MIPS_RM9122
35 select SYS_HAS_CPU_RM9000
36 select SYS_SUPPORTS_32BIT_KERNEL
37 select SYS_SUPPORTS_BIG_ENDIAN
38 help
39 The eXcite is a smart camera platform manufactured by
40 Basler Vision Technologies AG.
42 config BCM47XX
43 bool "BCM47XX based boards"
44 select CEVT_R4K
45 select CSRC_R4K
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
54 select SSB_DRIVER_EXTIF
55 select SSB_EMBEDDED
56 select SSB_PCICORE_HOSTMODE if PCI
57 select GENERIC_GPIO
58 select SYS_HAS_EARLY_PRINTK
59 select CFE
60 help
61 Support for BCM47XX based boards
63 config MIPS_COBALT
64 bool "Cobalt Server"
65 select CEVT_R4K
66 select CSRC_R4K
67 select CEVT_GT641XX
68 select DMA_NONCOHERENT
69 select HW_HAS_PCI
70 select I8253
71 select I8259
72 select IRQ_CPU
73 select IRQ_GT641XX
74 select PCI_GT64XXX_PCI0
75 select SYS_HAS_CPU_NEVADA
76 select SYS_HAS_EARLY_PRINTK
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_64BIT_KERNEL
79 select SYS_SUPPORTS_LITTLE_ENDIAN
80 select GENERIC_HARDIRQS_NO__DO_IRQ
82 config MACH_DECSTATION
83 bool "DECstations"
84 select BOOT_ELF32
85 select CEVT_DS1287
86 select CEVT_R4K
87 select CSRC_IOASIC
88 select CSRC_R4K
89 select CPU_DADDI_WORKAROUNDS if 64BIT
90 select CPU_R4000_WORKAROUNDS if 64BIT
91 select CPU_R4400_WORKAROUNDS if 64BIT
92 select DMA_NONCOHERENT
93 select NO_IOPORT
94 select IRQ_CPU
95 select SYS_HAS_CPU_R3000
96 select SYS_HAS_CPU_R4X00
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_128HZ
101 select SYS_SUPPORTS_256HZ
102 select SYS_SUPPORTS_1024HZ
103 help
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/>.
108 If you have one of the following DECstation Models you definitely
109 want to choose R4xx0 for the CPU Type:
111 DECstation 5000/50
112 DECstation 5000/150
113 DECstation 5000/260
114 DECsystem 5900/260
116 otherwise choose R3000.
118 config MACH_JAZZ
119 bool "Jazz family of machines"
120 select ARC
121 select ARC32
122 select ARCH_MAY_HAVE_PC_FDC
123 select CEVT_R4K
124 select CSRC_R4K
125 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
126 select GENERIC_ISA_DMA
127 select IRQ_CPU
128 select I8253
129 select I8259
130 select ISA
131 select SYS_HAS_CPU_R4X00
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
134 select SYS_SUPPORTS_100HZ
135 select GENERIC_HARDIRQS_NO__DO_IRQ
136 help
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.
142 config LASAT
143 bool "LASAT Networks platforms"
144 select CEVT_R4K
145 select CSRC_R4K
146 select DMA_NONCOHERENT
147 select SYS_HAS_EARLY_PRINTK
148 select HW_HAS_PCI
149 select IRQ_CPU
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
159 config LEMOTE_FULONG
160 bool "Lemote Fulong mini-PC"
161 select ARCH_SPARSEMEM_ENABLE
162 select CEVT_R4K
163 select CSRC_R4K
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
179 select GENERIC_ISA_DMA_SUPPORT_BROKEN
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
185 config MIPS_MALTA
186 bool "MIPS Malta board"
187 select ARCH_MAY_HAVE_PC_FDC
188 select BOOT_ELF32
189 select BOOT_RAW
190 select CEVT_R4K
191 select CSRC_R4K
192 select DMA_NONCOHERENT
193 select GENERIC_ISA_DMA
194 select IRQ_CPU
195 select IRQ_GIC
196 select HW_HAS_PCI
197 select I8253
198 select I8259
199 select MIPS_BOARDS_GEN
200 select MIPS_BONITO64
201 select MIPS_CPU_SCACHE
202 select PCI_GT64XXX_PCI0
203 select MIPS_MSC
204 select SWAP_IO_SPACE
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
210 select SYS_HAS_EARLY_PRINTK
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_SUPPORTS_LITTLE_ENDIAN
215 select SYS_SUPPORTS_MIPS_CMP if BROKEN # because SYNC_R4K is broken
216 select SYS_SUPPORTS_MULTITHREADING
217 select SYS_SUPPORTS_SMARTMIPS
218 help
219 This enables support for the MIPS Technologies Malta evaluation
220 board.
222 config MIPS_SIM
223 bool 'MIPS simulator (MIPSsim)'
224 select CEVT_R4K
225 select CSRC_R4K
226 select DMA_NONCOHERENT
227 select SYS_HAS_EARLY_PRINTK
228 select IRQ_CPU
229 select BOOT_RAW
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_HAS_CPU_MIPS32_R2
232 select SYS_HAS_EARLY_PRINTK
233 select SYS_SUPPORTS_32BIT_KERNEL
234 select SYS_SUPPORTS_BIG_ENDIAN
235 select SYS_SUPPORTS_MULTITHREADING
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 help
238 This option enables support for MIPS Technologies MIPSsim software
239 emulator.
241 config MACH_EMMA
242 bool "NEC EMMA series based machines"
244 config MACH_VR41XX
245 bool "NEC VR4100 series based machines"
246 select CEVT_R4K
247 select CSRC_R4K
248 select SYS_HAS_CPU_VR41XX
249 select GENERIC_HARDIRQS_NO__DO_IRQ
251 config NXP_STB220
252 bool "NXP STB220 board"
253 select SOC_PNX833X
254 help
255 Support for NXP Semiconductors STB220 Development Board.
257 config 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.
264 config PNX8550_JBS
265 bool "NXP PNX8550 based JBS board"
266 select PNX8550
267 select SYS_SUPPORTS_LITTLE_ENDIAN
269 config PNX8550_STB810
270 bool "NXP PNX8550 based STB810 board"
271 select PNX8550
272 select SYS_SUPPORTS_LITTLE_ENDIAN
274 config 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
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.
294 config PMC_YOSEMITE
295 bool "PMC-Sierra Yosemite eval board"
296 select CEVT_R4K
297 select CSRC_R4K
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
304 select SYS_HAS_CPU_RM9000
305 select SYS_HAS_EARLY_PRINTK
306 select SYS_SUPPORTS_32BIT_KERNEL
307 select SYS_SUPPORTS_64BIT_KERNEL
308 select SYS_SUPPORTS_BIG_ENDIAN
309 select SYS_SUPPORTS_HIGHMEM
310 select SYS_SUPPORTS_SMP
311 help
312 Yosemite is an evaluation board for the RM9000x2 processor
313 manufactured by PMC-Sierra.
315 config SGI_IP22
316 bool "SGI IP22 (Indy/Indigo2)"
317 select ARC
318 select ARC32
319 select BOOT_ELF32
320 select CEVT_R4K
321 select CSRC_R4K
322 select DEFAULT_SGI_PARTITION
323 select DMA_NONCOHERENT
324 select HW_HAS_EISA
325 select I8253
326 select I8259
327 select IP22_CPU_SCACHE
328 select IRQ_CPU
329 select GENERIC_ISA_DMA_SUPPORT_BROKEN
330 select SGI_HAS_I8042
331 select SGI_HAS_INDYDOG
332 select SGI_HAS_HAL2
333 select SGI_HAS_SEEQ
334 select SGI_HAS_WD93
335 select SGI_HAS_ZILOG
336 select SWAP_IO_SPACE
337 select SYS_HAS_CPU_R4X00
338 select SYS_HAS_CPU_R5000
339 select SYS_HAS_EARLY_PRINTK
340 select SYS_SUPPORTS_32BIT_KERNEL
341 select SYS_SUPPORTS_64BIT_KERNEL
342 select SYS_SUPPORTS_BIG_ENDIAN
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.
348 config SGI_IP27
349 bool "SGI IP27 (Origin200/2000)"
350 select ARC
351 select ARC64
352 select BOOT_ELF64
353 select DEFAULT_SGI_PARTITION
354 select DMA_IP27
355 select SYS_HAS_EARLY_PRINTK
356 select HW_HAS_PCI
357 select NR_CPUS_DEFAULT_64
358 select SYS_HAS_CPU_R10000
359 select SYS_SUPPORTS_64BIT_KERNEL
360 select SYS_SUPPORTS_BIG_ENDIAN
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_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
384 select SGI_HAS_I8042
385 select SGI_HAS_INDYDOG
386 select SGI_HAS_HAL2
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.
399 config SGI_IP32
400 bool "SGI IP32 (O2)"
401 select ARC
402 select ARC32
403 select BOOT_ELF32
404 select CEVT_R4K
405 select CSRC_R4K
406 select DMA_NONCOHERENT
407 select HW_HAS_PCI
408 select IRQ_CPU
409 select R5000_CPU_SCACHE
410 select RM7000_CPU_SCACHE
411 select SYS_HAS_CPU_R5000
412 select SYS_HAS_CPU_R10000 if BROKEN
413 select SYS_HAS_CPU_RM7000
414 select SYS_HAS_CPU_NEVADA
415 select SYS_SUPPORTS_64BIT_KERNEL
416 select SYS_SUPPORTS_BIG_ENDIAN
417 help
418 If you want this kernel to run on SGI O2 workstation, say Y here.
420 config SIBYTE_CRHINE
421 bool "Sibyte BCM91120C-CRhine"
422 depends on EXPERIMENTAL
423 select BOOT_ELF32
424 select DMA_COHERENT
425 select SIBYTE_BCM1120
426 select SWAP_IO_SPACE
427 select SYS_HAS_CPU_SB1
428 select SYS_SUPPORTS_BIG_ENDIAN
429 select SYS_SUPPORTS_LITTLE_ENDIAN
431 config SIBYTE_CARMEL
432 bool "Sibyte BCM91120x-Carmel"
433 depends on EXPERIMENTAL
434 select BOOT_ELF32
435 select DMA_COHERENT
436 select SIBYTE_BCM1120
437 select SWAP_IO_SPACE
438 select SYS_HAS_CPU_SB1
439 select SYS_SUPPORTS_BIG_ENDIAN
440 select SYS_SUPPORTS_LITTLE_ENDIAN
442 config SIBYTE_CRHONE
443 bool "Sibyte BCM91125C-CRhone"
444 depends on EXPERIMENTAL
445 select BOOT_ELF32
446 select DMA_COHERENT
447 select SIBYTE_BCM1125
448 select SWAP_IO_SPACE
449 select SYS_HAS_CPU_SB1
450 select SYS_SUPPORTS_BIG_ENDIAN
451 select SYS_SUPPORTS_HIGHMEM
452 select SYS_SUPPORTS_LITTLE_ENDIAN
454 config SIBYTE_RHONE
455 bool "Sibyte BCM91125E-Rhone"
456 depends on EXPERIMENTAL
457 select BOOT_ELF32
458 select DMA_COHERENT
459 select SIBYTE_BCM1125H
460 select SWAP_IO_SPACE
461 select SYS_HAS_CPU_SB1
462 select SYS_SUPPORTS_BIG_ENDIAN
463 select SYS_SUPPORTS_LITTLE_ENDIAN
465 config SIBYTE_SWARM
466 bool "Sibyte BCM91250A-SWARM"
467 select BOOT_ELF32
468 select DMA_COHERENT
469 select NR_CPUS_DEFAULT_2
470 select SIBYTE_SB1250
471 select SWAP_IO_SPACE
472 select SYS_HAS_CPU_SB1
473 select SYS_SUPPORTS_BIG_ENDIAN
474 select SYS_SUPPORTS_HIGHMEM
475 select SYS_SUPPORTS_LITTLE_ENDIAN
476 select ZONE_DMA32 if 64BIT
478 config SIBYTE_LITTLESUR
479 bool "Sibyte BCM91250C2-LittleSur"
480 depends on EXPERIMENTAL
481 select BOOT_ELF32
482 select DMA_COHERENT
483 select NR_CPUS_DEFAULT_2
484 select SIBYTE_SB1250
485 select SWAP_IO_SPACE
486 select SYS_HAS_CPU_SB1
487 select SYS_SUPPORTS_BIG_ENDIAN
488 select SYS_SUPPORTS_HIGHMEM
489 select SYS_SUPPORTS_LITTLE_ENDIAN
491 config SIBYTE_SENTOSA
492 bool "Sibyte BCM91250E-Sentosa"
493 depends on EXPERIMENTAL
494 select BOOT_ELF32
495 select DMA_COHERENT
496 select NR_CPUS_DEFAULT_2
497 select SIBYTE_SB1250
498 select SWAP_IO_SPACE
499 select SYS_HAS_CPU_SB1
500 select SYS_SUPPORTS_BIG_ENDIAN
501 select SYS_SUPPORTS_LITTLE_ENDIAN
503 config SIBYTE_BIGSUR
504 bool "Sibyte BCM91480B-BigSur"
505 select BOOT_ELF32
506 select DMA_COHERENT
507 select NR_CPUS_DEFAULT_4
508 select SIBYTE_BCM1x80
509 select SWAP_IO_SPACE
510 select SYS_HAS_CPU_SB1
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_HIGHMEM
513 select SYS_SUPPORTS_LITTLE_ENDIAN
514 select ZONE_DMA32 if 64BIT
516 config SNI_RM
517 bool "SNI RM200/300/400"
518 select ARC if CPU_LITTLE_ENDIAN
519 select ARC32 if CPU_LITTLE_ENDIAN
520 select SNIPROM if CPU_BIG_ENDIAN
521 select ARCH_MAY_HAVE_PC_FDC
522 select BOOT_ELF32
523 select CEVT_R4K
524 select CSRC_R4K
525 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
526 select DMA_NONCOHERENT
527 select GENERIC_ISA_DMA
528 select HW_HAS_EISA
529 select HW_HAS_PCI
530 select IRQ_CPU
531 select I8253
532 select I8259
533 select ISA
534 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
535 select SYS_HAS_CPU_R4X00
536 select SYS_HAS_CPU_R5000
537 select SYS_HAS_CPU_R10000
538 select R5000_CPU_SCACHE
539 select SYS_HAS_EARLY_PRINTK
540 select SYS_SUPPORTS_32BIT_KERNEL
541 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
542 select SYS_SUPPORTS_BIG_ENDIAN
543 select SYS_SUPPORTS_HIGHMEM
544 select SYS_SUPPORTS_LITTLE_ENDIAN
545 help
546 The SNI RM200/300/400 are MIPS-based machines manufactured by
547 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
548 Technology and now in turn merged with Fujitsu. Say Y here to
549 support this machine type.
551 config MACH_TX39XX
552 bool "Toshiba TX39 series based machines"
554 config MACH_TX49XX
555 bool "Toshiba TX49 series based machines"
557 config 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
570 select ARCH_REQUIRE_GPIOLIB
571 help
572 Support the Mikrotik(tm) RouterBoard 532 series,
573 based on the IDT RC32434 SoC.
575 config WR_PPMC
576 bool "Wind River PPMC board"
577 select CEVT_R4K
578 select CSRC_R4K
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.
598 endchoice
600 source "arch/mips/alchemy/Kconfig"
601 source "arch/mips/basler/excite/Kconfig"
602 source "arch/mips/emma/Kconfig"
603 source "arch/mips/jazz/Kconfig"
604 source "arch/mips/lasat/Kconfig"
605 source "arch/mips/pmc-sierra/Kconfig"
606 source "arch/mips/sgi-ip27/Kconfig"
607 source "arch/mips/sibyte/Kconfig"
608 source "arch/mips/txx9/Kconfig"
609 source "arch/mips/vr41xx/Kconfig"
611 endmenu
613 config RWSEM_GENERIC_SPINLOCK
614 bool
615 default y
617 config RWSEM_XCHGADD_ALGORITHM
618 bool
620 config ARCH_HAS_ILOG2_U32
621 bool
622 default n
624 config ARCH_HAS_ILOG2_U64
625 bool
626 default n
628 config ARCH_SUPPORTS_OPROFILE
629 bool
630 default y if !MIPS_MT_SMTC
632 config GENERIC_FIND_NEXT_BIT
633 bool
634 default y
636 config GENERIC_HWEIGHT
637 bool
638 default y
640 config GENERIC_CALIBRATE_DELAY
641 bool
642 default y
644 config GENERIC_CLOCKEVENTS
645 bool
646 default y
648 config GENERIC_TIME
649 bool
650 default y
652 config GENERIC_CMOS_UPDATE
653 bool
654 default y
656 config SCHED_OMIT_FRAME_POINTER
657 bool
658 default y
660 config GENERIC_HARDIRQS_NO__DO_IRQ
661 bool
662 default n
664 #
665 # Select some configuration options automatically based on user selections.
666 #
667 config ARC
668 bool
670 config ARCH_MAY_HAVE_PC_FDC
671 bool
673 config BOOT_RAW
674 bool
676 config CEVT_BCM1480
677 bool
679 config CEVT_DS1287
680 bool
682 config CEVT_GT641XX
683 bool
685 config CEVT_R4K
686 bool
688 config CEVT_SB1250
689 bool
691 config CEVT_TXX9
692 bool
694 config CSRC_BCM1480
695 bool
697 config CSRC_IOASIC
698 bool
700 config CSRC_R4K
701 bool
703 config CSRC_SB1250
704 bool
706 config GPIO_TXX9
707 select GENERIC_GPIO
708 select ARCH_REQUIRE_GPIOLIB
709 bool
711 config CFE
712 bool
714 config DMA_COHERENT
715 bool
717 config DMA_IP27
718 bool
720 config DMA_NONCOHERENT
721 bool
722 select DMA_NEED_PCI_MAP_STATE
724 config DMA_NEED_PCI_MAP_STATE
725 bool
727 config EARLY_PRINTK
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.
735 This is useful for kernel debugging when your machine crashes very
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,
739 unless you want to debug such a crash.
741 config SYS_HAS_EARLY_PRINTK
742 bool
744 config HOTPLUG_CPU
745 bool
746 default n
748 config I8259
749 bool
751 config MIPS_BONITO64
752 bool
754 config MIPS_MSC
755 bool
757 config MIPS_NILE4
758 bool
760 config MIPS_DISABLE_OBSOLETE_IDE
761 bool
763 config SYNC_R4K
764 bool
766 config NO_IOPORT
767 def_bool n
769 config GENERIC_ISA_DMA
770 bool
771 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
773 config GENERIC_ISA_DMA_SUPPORT_BROKEN
774 bool
775 select GENERIC_ISA_DMA
777 config GENERIC_GPIO
778 bool
780 #
781 # Endianess selection. Sufficiently obscure so many users don't know what to
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 #
785 choice
786 prompt "Endianess selection"
787 help
788 Some MIPS machines can be configured for either little or big endian
789 byte order. These modes require different kernels and a different
790 Linux distribution. In general there is one preferred byteorder for a
791 particular system but some systems are just as commonly used in the
792 one or the other endianness.
794 config CPU_BIG_ENDIAN
795 bool "Big endian"
796 depends on SYS_SUPPORTS_BIG_ENDIAN
798 config CPU_LITTLE_ENDIAN
799 bool "Little endian"
800 depends on SYS_SUPPORTS_LITTLE_ENDIAN
801 help
803 endchoice
805 config SYS_SUPPORTS_APM_EMULATION
806 bool
808 config SYS_SUPPORTS_BIG_ENDIAN
809 bool
811 config SYS_SUPPORTS_LITTLE_ENDIAN
812 bool
814 config IRQ_CPU
815 bool
817 config IRQ_CPU_RM7K
818 bool
820 config IRQ_CPU_RM9K
821 bool
823 config IRQ_MSP_SLP
824 bool
826 config IRQ_MSP_CIC
827 bool
829 config IRQ_TXX9
830 bool
832 config IRQ_GT641XX
833 bool
835 config IRQ_GIC
836 bool
838 config MIPS_BOARDS_GEN
839 bool
841 config PCI_GT64XXX_PCI0
842 bool
844 config NO_EXCEPT_FILL
845 bool
847 config MIPS_RM9122
848 bool
849 select SERIAL_RM9000
851 config 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
865 config SOC_PNX8335
866 bool
867 select SOC_PNX833X
869 config PNX8550
870 bool
871 select SOC_PNX8550
873 config SOC_PNX8550
874 bool
875 select DMA_NONCOHERENT
876 select HW_HAS_PCI
877 select SYS_HAS_CPU_MIPS32_R1
878 select SYS_HAS_EARLY_PRINTK
879 select SYS_SUPPORTS_32BIT_KERNEL
880 select GENERIC_HARDIRQS_NO__DO_IRQ
881 select GENERIC_GPIO
883 config SWAP_IO_SPACE
884 bool
886 config EMMA2RH
887 bool
888 depends on MARKEINS
889 default y
891 config SERIAL_RM9000
892 bool
894 config SGI_HAS_INDYDOG
895 bool
897 config SGI_HAS_HAL2
898 bool
900 config SGI_HAS_SEEQ
901 bool
903 config SGI_HAS_WD93
904 bool
906 config SGI_HAS_ZILOG
907 bool
909 config SGI_HAS_I8042
910 bool
912 config DEFAULT_SGI_PARTITION
913 bool
915 config ARC32
916 bool
918 config SNIPROM
919 bool
921 config BOOT_ELF32
922 bool
924 config MIPS_L1_CACHE_SHIFT
925 int
926 default "4" if MACH_DECSTATION || MIKROTIK_RB532
927 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
928 default "4" if PMC_MSP4200_EVAL
929 default "5"
931 config HAVE_STD_PC_SERIAL_PORT
932 bool
934 config ARC_CONSOLE
935 bool "ARC console support"
936 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
938 config ARC_MEMORY
939 bool
940 depends on MACH_JAZZ || SNI_RM || SGI_IP32
941 default y
943 config ARC_PROMLIB
944 bool
945 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
946 default y
948 config ARC64
949 bool
951 config BOOT_ELF64
952 bool
954 menu "CPU selection"
956 choice
957 prompt "CPU type"
958 default CPU_R4X00
960 config 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.
970 config CPU_MIPS32_R1
971 bool "MIPS32 Release 1"
972 depends on SYS_HAS_CPU_MIPS32_R1
973 select CPU_HAS_LLSC
974 select CPU_HAS_PREFETCH
975 select CPU_SUPPORTS_32BIT_KERNEL
976 select CPU_SUPPORTS_HIGHMEM
977 help
978 Choose this option to build a kernel for release 1 or later of the
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.
988 config CPU_MIPS32_R2
989 bool "MIPS32 Release 2"
990 depends on SYS_HAS_CPU_MIPS32_R2
991 select CPU_HAS_LLSC
992 select CPU_HAS_PREFETCH
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_HIGHMEM
995 help
996 Choose this option to build a kernel for release 2 or later of the
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.
1002 config CPU_MIPS64_R1
1003 bool "MIPS64 Release 1"
1004 depends on SYS_HAS_CPU_MIPS64_R1
1005 select CPU_HAS_LLSC
1006 select CPU_HAS_PREFETCH
1007 select CPU_SUPPORTS_32BIT_KERNEL
1008 select CPU_SUPPORTS_64BIT_KERNEL
1009 select CPU_SUPPORTS_HIGHMEM
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.
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.
1021 config CPU_MIPS64_R2
1022 bool "MIPS64 Release 2"
1023 depends on SYS_HAS_CPU_MIPS64_R2
1024 select CPU_HAS_LLSC
1025 select CPU_HAS_PREFETCH
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_64BIT_KERNEL
1028 select CPU_SUPPORTS_HIGHMEM
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.
1036 config CPU_R3000
1037 bool "R3000"
1038 depends on SYS_HAS_CPU_R3000
1039 select CPU_HAS_WB
1040 select CPU_SUPPORTS_32BIT_KERNEL
1041 select CPU_SUPPORTS_HIGHMEM
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.
1050 config CPU_TX39XX
1051 bool "R39XX"
1052 depends on SYS_HAS_CPU_TX39XX
1053 select CPU_SUPPORTS_32BIT_KERNEL
1055 config CPU_VR41XX
1056 bool "R41xx"
1057 depends on SYS_HAS_CPU_VR41XX
1058 select CPU_SUPPORTS_32BIT_KERNEL
1059 select CPU_SUPPORTS_64BIT_KERNEL
1060 help
1061 The options selects support for the NEC VR4100 series of processors.
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.
1066 config CPU_R4300
1067 bool "R4300"
1068 depends on SYS_HAS_CPU_R4300
1069 select CPU_HAS_LLSC
1070 select CPU_SUPPORTS_32BIT_KERNEL
1071 select CPU_SUPPORTS_64BIT_KERNEL
1072 help
1073 MIPS Technologies R4300-series processors.
1075 config CPU_R4X00
1076 bool "R4x00"
1077 depends on SYS_HAS_CPU_R4X00
1078 select CPU_HAS_LLSC
1079 select CPU_SUPPORTS_32BIT_KERNEL
1080 select CPU_SUPPORTS_64BIT_KERNEL
1081 help
1082 MIPS Technologies R4000-series processors other than 4300, including
1083 the R4000, R4400, R4600, and 4700.
1085 config CPU_TX49XX
1086 bool "R49XX"
1087 depends on SYS_HAS_CPU_TX49XX
1088 select CPU_HAS_LLSC
1089 select CPU_HAS_PREFETCH
1090 select CPU_SUPPORTS_32BIT_KERNEL
1091 select CPU_SUPPORTS_64BIT_KERNEL
1093 config CPU_R5000
1094 bool "R5000"
1095 depends on SYS_HAS_CPU_R5000
1096 select CPU_HAS_LLSC
1097 select CPU_SUPPORTS_32BIT_KERNEL
1098 select CPU_SUPPORTS_64BIT_KERNEL
1099 help
1100 MIPS Technologies R5000-series processors other than the Nevada.
1102 config CPU_R5432
1103 bool "R5432"
1104 depends on SYS_HAS_CPU_R5432
1105 select CPU_HAS_LLSC
1106 select CPU_SUPPORTS_32BIT_KERNEL
1107 select CPU_SUPPORTS_64BIT_KERNEL
1109 config 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.
1119 config CPU_R6000
1120 bool "R6000"
1121 depends on EXPERIMENTAL
1122 select CPU_HAS_LLSC
1123 depends on SYS_HAS_CPU_R6000
1124 select CPU_SUPPORTS_32BIT_KERNEL
1125 help
1126 MIPS Technologies R6000 and R6000A series processors. Note these
1127 processors are extremely rare and the support for them is incomplete.
1129 config CPU_NEVADA
1130 bool "RM52xx"
1131 depends on SYS_HAS_CPU_NEVADA
1132 select CPU_HAS_LLSC
1133 select CPU_SUPPORTS_32BIT_KERNEL
1134 select CPU_SUPPORTS_64BIT_KERNEL
1135 help
1136 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1138 config CPU_R8000
1139 bool "R8000"
1140 depends on EXPERIMENTAL
1141 depends on SYS_HAS_CPU_R8000
1142 select CPU_HAS_LLSC
1143 select CPU_HAS_PREFETCH
1144 select CPU_SUPPORTS_64BIT_KERNEL
1145 help
1146 MIPS Technologies R8000 processors. Note these processors are
1147 uncommon and the support for them is incomplete.
1149 config CPU_R10000
1150 bool "R10000"
1151 depends on SYS_HAS_CPU_R10000
1152 select CPU_HAS_LLSC
1153 select CPU_HAS_PREFETCH
1154 select CPU_SUPPORTS_32BIT_KERNEL
1155 select CPU_SUPPORTS_64BIT_KERNEL
1156 select CPU_SUPPORTS_HIGHMEM
1157 help
1158 MIPS Technologies R10000-series processors.
1160 config CPU_RM7000
1161 bool "RM7000"
1162 depends on SYS_HAS_CPU_RM7000
1163 select CPU_HAS_LLSC
1164 select CPU_HAS_PREFETCH
1165 select CPU_SUPPORTS_32BIT_KERNEL
1166 select CPU_SUPPORTS_64BIT_KERNEL
1167 select CPU_SUPPORTS_HIGHMEM
1169 config CPU_RM9000
1170 bool "RM9000"
1171 depends on SYS_HAS_CPU_RM9000
1172 select CPU_HAS_LLSC
1173 select CPU_HAS_PREFETCH
1174 select CPU_SUPPORTS_32BIT_KERNEL
1175 select CPU_SUPPORTS_64BIT_KERNEL
1176 select CPU_SUPPORTS_HIGHMEM
1177 select WEAK_ORDERING
1179 config CPU_SB1
1180 bool "SB1"
1181 depends on SYS_HAS_CPU_SB1
1182 select CPU_HAS_LLSC
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_64BIT_KERNEL
1185 select CPU_SUPPORTS_HIGHMEM
1186 select WEAK_ORDERING
1188 endchoice
1190 config SYS_HAS_CPU_LOONGSON2
1191 bool
1193 config SYS_HAS_CPU_MIPS32_R1
1194 bool
1196 config SYS_HAS_CPU_MIPS32_R2
1197 bool
1199 config SYS_HAS_CPU_MIPS64_R1
1200 bool
1202 config SYS_HAS_CPU_MIPS64_R2
1203 bool
1205 config SYS_HAS_CPU_R3000
1206 bool
1208 config SYS_HAS_CPU_TX39XX
1209 bool
1211 config SYS_HAS_CPU_VR41XX
1212 bool
1214 config SYS_HAS_CPU_R4300
1215 bool
1217 config SYS_HAS_CPU_R4X00
1218 bool
1220 config SYS_HAS_CPU_TX49XX
1221 bool
1223 config SYS_HAS_CPU_R5000
1224 bool
1226 config SYS_HAS_CPU_R5432
1227 bool
1229 config SYS_HAS_CPU_R5500
1230 bool
1232 config SYS_HAS_CPU_R6000
1233 bool
1235 config SYS_HAS_CPU_NEVADA
1236 bool
1238 config SYS_HAS_CPU_R8000
1239 bool
1241 config SYS_HAS_CPU_R10000
1242 bool
1244 config SYS_HAS_CPU_RM7000
1245 bool
1247 config SYS_HAS_CPU_RM9000
1248 bool
1250 config SYS_HAS_CPU_SB1
1251 bool
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 #
1257 config WEAK_ORDERING
1258 bool
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 #
1264 config WEAK_REORDERING_BEYOND_LLSC
1265 bool
1266 endmenu
1268 #
1269 # These two indicate any level of the MIPS32 and MIPS64 architecture
1270 #
1271 config CPU_MIPS32
1272 bool
1273 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1275 config CPU_MIPS64
1276 bool
1277 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1279 #
1280 # These two indicate the revision of the architecture, either Release 1 or Release 2
1281 #
1282 config CPU_MIPSR1
1283 bool
1284 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1286 config CPU_MIPSR2
1287 bool
1288 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1290 config SYS_SUPPORTS_32BIT_KERNEL
1291 bool
1292 config SYS_SUPPORTS_64BIT_KERNEL
1293 bool
1294 config CPU_SUPPORTS_32BIT_KERNEL
1295 bool
1296 config CPU_SUPPORTS_64BIT_KERNEL
1297 bool
1299 #
1300 # Set to y for ptrace access to watch registers.
1301 #
1302 config HARDWARE_WATCHPOINTS
1303 bool
1304 default y if CPU_MIPS32 || CPU_MIPS64
1306 menu "Kernel type"
1308 choice
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.
1317 config 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.
1323 config 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.
1329 endchoice
1331 choice
1332 prompt "Kernel page size"
1333 default PAGE_SIZE_4KB
1335 config 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.
1343 config 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.
1353 config PAGE_SIZE_16KB
1354 bool "16kB"
1355 depends on !CPU_R3000 && !CPU_TX39XX
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
1359 all non-R3000 family processors. Note that you will need a suitable
1360 Linux distribution to support this.
1362 config 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
1369 writing this option is still high experimental.
1371 endchoice
1373 config BOARD_SCACHE
1374 bool
1376 config IP22_CPU_SCACHE
1377 bool
1378 select BOARD_SCACHE
1380 #
1381 # Support for a MIPS32 / MIPS64 style S-caches
1382 #
1383 config MIPS_CPU_SCACHE
1384 bool
1385 select BOARD_SCACHE
1387 config R5000_CPU_SCACHE
1388 bool
1389 select BOARD_SCACHE
1391 config RM7000_CPU_SCACHE
1392 bool
1393 select BOARD_SCACHE
1395 config 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.
1403 config CPU_HAS_PREFETCH
1404 bool
1406 choice
1407 prompt "MIPS MT options"
1409 config 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.
1417 config MIPS_MT_SMP
1418 bool "Use 1 TC on each available VPE for SMP"
1419 depends on SYS_SUPPORTS_MULTITHREADING
1420 select CPU_MIPSR2_IRQ_VI
1421 select CPU_MIPSR2_IRQ_EI
1422 select MIPS_MT
1423 select NR_CPUS_DEFAULT_2
1424 select SMP
1425 select SYS_SUPPORTS_SCHED_SMT if SMP
1426 select SYS_SUPPORTS_SMP
1427 select SMP_UP
1428 help
1429 This is a kernel model which is also known a VSMP or lately
1430 has been marketesed into SMVP.
1432 config 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 ...
1436 depends on SYS_SUPPORTS_MULTITHREADING
1437 select CPU_MIPSR2_IRQ_VI
1438 select CPU_MIPSR2_IRQ_EI
1439 select MIPS_MT
1440 select NR_CPUS_DEFAULT_8
1441 select SMP
1442 select SYS_SUPPORTS_SMP
1443 select SMP_UP
1444 help
1445 This is a kernel model which is known a SMTC or lately has been
1446 marketesed into SMVP.
1448 endchoice
1450 config MIPS_MT
1451 bool
1453 config 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.
1462 config SYS_SUPPORTS_SCHED_SMT
1463 bool
1466 config SYS_SUPPORTS_MULTITHREADING
1467 bool
1469 config MIPS_MT_FPAFF
1470 bool "Dynamic FPU affinity for FP-intensive threads"
1471 default y
1472 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1474 config 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
1479 select MIPS_MT
1480 help
1481 Includes a loader for loading an elf relocatable object
1482 onto another VPE and running it.
1484 config MIPS_MT_SMTC_IM_BACKSTOP
1485 bool "Use per-TC register bits as backstop for inhibited IM bits"
1486 depends on MIPS_MT_SMTC
1487 default n
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
1494 impact on interrupt service overhead.
1496 config 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
1504 platform code. Adds some overhead to interrupt dispatch, and
1505 should be used only if you know what you are doing.
1507 config 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.
1517 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1518 config MIPS_VPE_APSP_API
1519 bool "Enable support for AP/SP API (RTLX)"
1520 depends on MIPS_VPE_LOADER
1521 help
1523 config 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.
1533 config 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...
1545 config SB1_PASS_1_WORKAROUNDS
1546 bool
1547 depends on CPU_SB1_PASS_1
1548 default y
1550 config SB1_PASS_2_WORKAROUNDS
1551 bool
1552 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1553 default y
1555 config SB1_PASS_2_1_WORKAROUNDS
1556 bool
1557 depends on CPU_SB1 && CPU_SB1_PASS_2
1558 default y
1560 config 64BIT_PHYS_ADDR
1561 bool
1563 config CPU_HAS_LLSC
1564 bool
1566 config 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.
1578 config CPU_HAS_WB
1579 bool
1581 #
1582 # Vectored interrupt mode is an R2 feature
1583 #
1584 config CPU_MIPSR2_IRQ_VI
1585 bool
1587 #
1588 # Extended interrupt mode is an R2 feature
1589 #
1590 config CPU_MIPSR2_IRQ_EI
1591 bool
1593 config CPU_HAS_SYNC
1594 bool
1595 depends on !CPU_R3000
1596 default y
1598 config GENERIC_CLOCKEVENTS_BROADCAST
1599 bool
1601 #
1602 # CPU non-features
1603 #
1604 config CPU_DADDI_WORKAROUNDS
1605 bool
1607 config CPU_R4000_WORKAROUNDS
1608 bool
1609 select CPU_R4400_WORKAROUNDS
1611 config CPU_R4400_WORKAROUNDS
1612 bool
1614 #
1615 # Use the generic interrupt handling code in kernel/irq/:
1616 #
1617 config GENERIC_HARDIRQS
1618 bool
1619 default y
1621 config GENERIC_IRQ_PROBE
1622 bool
1623 default y
1625 config IRQ_PER_CPU
1626 bool
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.
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.
1640 #
1641 config HIGHMEM
1642 bool "High Memory Support"
1643 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1645 config CPU_SUPPORTS_HIGHMEM
1646 bool
1648 config SYS_SUPPORTS_HIGHMEM
1649 bool
1651 config SYS_SUPPORTS_SMARTMIPS
1652 bool
1654 config ARCH_FLATMEM_ENABLE
1655 def_bool y
1656 depends on !NUMA
1658 config ARCH_DISCONTIGMEM_ENABLE
1659 bool
1660 default y if SGI_IP27
1661 help
1662 Say Y to support efficient handling of discontiguous physical memory,
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.
1667 config ARCH_POPULATES_NODE_MAP
1668 def_bool y
1670 config ARCH_SPARSEMEM_ENABLE
1671 bool
1672 select SPARSEMEM_STATIC
1674 config 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.
1684 config SYS_SUPPORTS_NUMA
1685 bool
1687 config NODES_SHIFT
1688 int
1689 default "6"
1690 depends on NEED_MULTIPLE_NODES
1692 source "mm/Kconfig"
1694 config SMP
1695 bool "Multi-Processing support"
1696 depends on SYS_SUPPORTS_SMP
1697 select IRQ_PER_CPU
1698 select USE_GENERIC_SMP_HELPERS
1699 help
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.
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.
1710 People using multiprocessor machines who say Y here should also say
1711 Y to "Enhanced Real Time Clock Support", below.
1713 See also the SMP-HOWTO available at
1714 <http://www.tldp.org/docs.html#howto>.
1716 If you don't know what to do here, say N.
1718 config SMP_UP
1719 bool
1721 config SYS_SUPPORTS_MIPS_CMP
1722 bool
1724 config SYS_SUPPORTS_SMP
1725 bool
1727 config NR_CPUS_DEFAULT_1
1728 bool
1730 config NR_CPUS_DEFAULT_2
1731 bool
1733 config NR_CPUS_DEFAULT_4
1734 bool
1736 config NR_CPUS_DEFAULT_8
1737 bool
1739 config NR_CPUS_DEFAULT_16
1740 bool
1742 config NR_CPUS_DEFAULT_32
1743 bool
1745 config NR_CPUS_DEFAULT_64
1746 bool
1748 config NR_CPUS
1749 int "Maximum number of CPUs (2-64)"
1750 range 1 64 if NR_CPUS_DEFAULT_1
1751 depends on SMP
1752 default "1" if NR_CPUS_DEFAULT_1
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
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
1763 sense is 1 for Qemu (useful only for kernel debugging purposes)
1764 and 2 for all others.
1766 This is purely to save memory - each supported CPU adds
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.
1771 source "kernel/time/Kconfig"
1773 #
1774 # Timer Interrupt Frequency Configuration
1775 #
1777 choice
1778 prompt "Timer frequency"
1779 default HZ_250
1780 help
1781 Allows the configuration of the timer frequency.
1783 config HZ_48
1784 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1786 config HZ_100
1787 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1789 config HZ_128
1790 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1792 config HZ_250
1793 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1795 config HZ_256
1796 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1798 config HZ_1000
1799 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1801 config HZ_1024
1802 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1804 endchoice
1806 config SYS_SUPPORTS_48HZ
1807 bool
1809 config SYS_SUPPORTS_100HZ
1810 bool
1812 config SYS_SUPPORTS_128HZ
1813 bool
1815 config SYS_SUPPORTS_250HZ
1816 bool
1818 config SYS_SUPPORTS_256HZ
1819 bool
1821 config SYS_SUPPORTS_1000HZ
1822 bool
1824 config SYS_SUPPORTS_1024HZ
1825 bool
1827 config 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
1834 config 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
1844 source "kernel/Kconfig.preempt"
1846 config MIPS_INSANE_LARGE
1847 bool "Support for large 64-bit configurations"
1848 depends on CPU_R10000 && 64BIT
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.
1856 config 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
1862 but it is independent of the system firmware. And like a reboot
1863 you can start any kernel with it, not just Linux.
1865 The name comes from the similarity to the exec system call.
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.
1873 config SECCOMP
1874 bool "Enable seccomp to safely compute untrusted bytecode"
1875 depends on PROC_FS
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.
1888 If unsure, say Y. Only embedded should say N here.
1890 endmenu
1892 config RWSEM_GENERIC_SPINLOCK
1893 bool
1894 default y
1896 config LOCKDEP_SUPPORT
1897 bool
1898 default y
1900 config STACKTRACE_SUPPORT
1901 bool
1902 default y
1904 source "init/Kconfig"
1906 config 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.
1915 source "kernel/Kconfig.freezer"
1917 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1919 config HW_HAS_EISA
1920 bool
1921 config HW_HAS_PCI
1922 bool
1924 config PCI
1925 bool "Support for PCI controller"
1926 depends on HW_HAS_PCI
1927 select PCI_DOMAINS
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.
1934 config PCI_DOMAINS
1935 bool
1937 source "drivers/pci/Kconfig"
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 #
1944 config ISA
1945 bool
1947 config EISA
1948 bool "EISA support"
1949 depends on HW_HAS_EISA
1950 select ISA
1951 select GENERIC_ISA_DMA
1952 ---help---
1953 The Extended Industry Standard Architecture (EISA) bus was
1954 developed as an open alternative to the IBM MicroChannel bus.
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.
1961 Say Y here if you are building a kernel for an EISA-based machine.
1963 Otherwise, say N.
1965 source "drivers/eisa/Kconfig"
1967 config 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>.
1976 #config ACCESSBUS
1977 # bool "Access.Bus support"
1978 # depends on TC
1980 config MMU
1981 bool
1982 default y
1984 config I8253
1985 bool
1987 config ZONE_DMA32
1988 bool
1990 source "drivers/pcmcia/Kconfig"
1992 source "drivers/pci/hotplug/Kconfig"
1994 endmenu
1996 menu "Executable file formats"
1998 source "fs/Kconfig.binfmt"
2000 config TRAD_SIGNALS
2001 bool
2003 config MIPS32_COMPAT
2004 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2005 depends on 64BIT
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.
2011 config COMPAT
2012 bool
2013 depends on MIPS32_COMPAT
2014 default y
2016 config SYSVIPC_COMPAT
2017 bool
2018 depends on COMPAT && SYSVIPC
2019 default y
2021 config 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.
2029 If unsure, say Y.
2031 config 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.
2040 If unsure, say N.
2042 config BINFMT_ELF32
2043 bool
2044 default y if MIPS32_O32 || MIPS32_N32
2046 endmenu
2048 menu "Power management options"
2050 config ARCH_SUSPEND_POSSIBLE
2051 def_bool y
2052 depends on !SMP
2054 source "kernel/power/Kconfig"
2056 endmenu
2058 source "net/Kconfig"
2060 source "drivers/Kconfig"
2062 source "fs/Kconfig"
2064 source "arch/mips/Kconfig.debug"
2066 source "security/Kconfig"
2068 source "crypto/Kconfig"
2070 source "lib/Kconfig"