irq: add irq_desc_without_new
[deliverable/linux.git] / arch / mips / Kconfig
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
10
11 mainmenu "Linux/MIPS Kernel Configuration"
12
13 menu "Machine selection"
14
15 config ZONE_DMA
16 bool
17
18 choice
19 prompt "System type"
20 default SGI_IP22
21
22 config MACH_ALCHEMY
23 bool "Alchemy processor based machines"
24
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.
41
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_PCICORE_HOSTMODE if PCI
56 select GENERIC_GPIO
57 select SYS_HAS_EARLY_PRINTK
58 select CFE
59 help
60 Support for BCM47XX based boards
61
62 config MIPS_COBALT
63 bool "Cobalt Server"
64 select CEVT_R4K
65 select CSRC_R4K
66 select CEVT_GT641XX
67 select DMA_NONCOHERENT
68 select HW_HAS_PCI
69 select I8253
70 select I8259
71 select IRQ_CPU
72 select IRQ_GT641XX
73 select PCI_GT64XXX_PCI0
74 select SYS_HAS_CPU_NEVADA
75 select SYS_HAS_EARLY_PRINTK
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_64BIT_KERNEL
78 select SYS_SUPPORTS_LITTLE_ENDIAN
79 select GENERIC_HARDIRQS_NO__DO_IRQ
80
81 config MACH_DECSTATION
82 bool "DECstations"
83 select BOOT_ELF32
84 select CEVT_DS1287
85 select CEVT_R4K
86 select CSRC_IOASIC
87 select CSRC_R4K
88 select CPU_DADDI_WORKAROUNDS if 64BIT
89 select CPU_R4000_WORKAROUNDS if 64BIT
90 select CPU_R4400_WORKAROUNDS if 64BIT
91 select DMA_NONCOHERENT
92 select NO_IOPORT
93 select IRQ_CPU
94 select SYS_HAS_CPU_R3000
95 select SYS_HAS_CPU_R4X00
96 select SYS_SUPPORTS_32BIT_KERNEL
97 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_128HZ
100 select SYS_SUPPORTS_256HZ
101 select SYS_SUPPORTS_1024HZ
102 help
103 This enables support for DEC's MIPS based workstations. For details
104 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
105 DECstation porting pages on <http://decstation.unix-ag.org/>.
106
107 If you have one of the following DECstation Models you definitely
108 want to choose R4xx0 for the CPU Type:
109
110 DECstation 5000/50
111 DECstation 5000/150
112 DECstation 5000/260
113 DECsystem 5900/260
114
115 otherwise choose R3000.
116
117 config MACH_JAZZ
118 bool "Jazz family of machines"
119 select ARC
120 select ARC32
121 select ARCH_MAY_HAVE_PC_FDC
122 select CEVT_R4K
123 select CSRC_R4K
124 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
125 select GENERIC_ISA_DMA
126 select IRQ_CPU
127 select I8253
128 select I8259
129 select ISA
130 select SYS_HAS_CPU_R4X00
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
133 select SYS_SUPPORTS_100HZ
134 select GENERIC_HARDIRQS_NO__DO_IRQ
135 help
136 This a family of machines based on the MIPS R4030 chipset which was
137 used by several vendors to build RISC/os and Windows NT workstations.
138 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
139 Olivetti M700-10 workstations.
140
141 config LASAT
142 bool "LASAT Networks platforms"
143 select CEVT_R4K
144 select CSRC_R4K
145 select DMA_NONCOHERENT
146 select SYS_HAS_EARLY_PRINTK
147 select HW_HAS_PCI
148 select IRQ_CPU
149 select PCI_GT64XXX_PCI0
150 select MIPS_NILE4
151 select R5000_CPU_SCACHE
152 select SYS_HAS_CPU_R5000
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
155 select SYS_SUPPORTS_LITTLE_ENDIAN
156 select GENERIC_HARDIRQS_NO__DO_IRQ
157
158 config LEMOTE_FULONG
159 bool "Lemote Fulong mini-PC"
160 select ARCH_SPARSEMEM_ENABLE
161 select CEVT_R4K
162 select CSRC_R4K
163 select SYS_HAS_CPU_LOONGSON2
164 select DMA_NONCOHERENT
165 select BOOT_ELF32
166 select BOARD_SCACHE
167 select HAVE_STD_PC_SERIAL_PORT
168 select HW_HAS_PCI
169 select I8259
170 select ISA
171 select IRQ_CPU
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select SYS_SUPPORTS_HIGHMEM
176 select SYS_HAS_EARLY_PRINTK
177 select GENERIC_HARDIRQS_NO__DO_IRQ
178 select GENERIC_ISA_DMA_SUPPORT_BROKEN
179 select CPU_HAS_WB
180 help
181 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
182 an FPGA northbridge
183
184 config MIPS_MALTA
185 bool "MIPS Malta board"
186 select ARCH_MAY_HAVE_PC_FDC
187 select BOOT_ELF32
188 select BOOT_RAW
189 select CEVT_R4K
190 select CSRC_R4K
191 select DMA_NONCOHERENT
192 select GENERIC_ISA_DMA
193 select IRQ_CPU
194 select IRQ_GIC
195 select HW_HAS_PCI
196 select I8253
197 select I8259
198 select MIPS_BOARDS_GEN
199 select MIPS_BONITO64
200 select MIPS_CPU_SCACHE
201 select PCI_GT64XXX_PCI0
202 select MIPS_MSC
203 select SWAP_IO_SPACE
204 select SYS_HAS_CPU_MIPS32_R1
205 select SYS_HAS_CPU_MIPS32_R2
206 select SYS_HAS_CPU_MIPS64_R1
207 select SYS_HAS_CPU_NEVADA
208 select SYS_HAS_CPU_RM7000
209 select SYS_HAS_EARLY_PRINTK
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_64BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_SUPPORTS_LITTLE_ENDIAN
214 select SYS_SUPPORTS_MIPS_CMP if BROKEN # because SYNC_R4K is broken
215 select SYS_SUPPORTS_MULTITHREADING
216 select SYS_SUPPORTS_SMARTMIPS
217 help
218 This enables support for the MIPS Technologies Malta evaluation
219 board.
220
221 config MIPS_SIM
222 bool 'MIPS simulator (MIPSsim)'
223 select CEVT_R4K
224 select CSRC_R4K
225 select DMA_NONCOHERENT
226 select SYS_HAS_EARLY_PRINTK
227 select IRQ_CPU
228 select BOOT_RAW
229 select SYS_HAS_CPU_MIPS32_R1
230 select SYS_HAS_CPU_MIPS32_R2
231 select SYS_HAS_EARLY_PRINTK
232 select SYS_SUPPORTS_32BIT_KERNEL
233 select SYS_SUPPORTS_BIG_ENDIAN
234 select SYS_SUPPORTS_MULTITHREADING
235 select SYS_SUPPORTS_LITTLE_ENDIAN
236 help
237 This option enables support for MIPS Technologies MIPSsim software
238 emulator.
239
240 config MARKEINS
241 bool "NEC EMMA2RH Mark-eins"
242 select CEVT_R4K
243 select CSRC_R4K
244 select DMA_NONCOHERENT
245 select HW_HAS_PCI
246 select IRQ_CPU
247 select SWAP_IO_SPACE
248 select SYS_SUPPORTS_32BIT_KERNEL
249 select SYS_SUPPORTS_BIG_ENDIAN
250 select SYS_SUPPORTS_LITTLE_ENDIAN
251 select SYS_HAS_CPU_R5000
252 help
253 This enables support for the R5432-based NEC Mark-eins
254 boards with R5500 CPU.
255
256 config MACH_VR41XX
257 bool "NEC VR4100 series based machines"
258 select CEVT_R4K
259 select CSRC_R4K
260 select SYS_HAS_CPU_VR41XX
261 select GENERIC_HARDIRQS_NO__DO_IRQ
262
263 config PNX8550_JBS
264 bool "NXP PNX8550 based JBS board"
265 select PNX8550
266 select SYS_SUPPORTS_LITTLE_ENDIAN
267
268 config PNX8550_STB810
269 bool "NXP PNX8550 based STB810 board"
270 select PNX8550
271 select SYS_SUPPORTS_LITTLE_ENDIAN
272
273 config PMC_MSP
274 bool "PMC-Sierra MSP chipsets"
275 depends on EXPERIMENTAL
276 select DMA_NONCOHERENT
277 select SWAP_IO_SPACE
278 select NO_EXCEPT_FILL
279 select BOOT_RAW
280 select SYS_HAS_CPU_MIPS32_R1
281 select SYS_HAS_CPU_MIPS32_R2
282 select SYS_SUPPORTS_32BIT_KERNEL
283 select SYS_SUPPORTS_BIG_ENDIAN
284 select IRQ_CPU
285 select SERIAL_8250
286 select SERIAL_8250_CONSOLE
287 help
288 This adds support for the PMC-Sierra family of Multi-Service
289 Processor System-On-A-Chips. These parts include a number
290 of integrated peripherals, interfaces and DSPs in addition to
291 a variety of MIPS cores.
292
293 config PMC_YOSEMITE
294 bool "PMC-Sierra Yosemite eval board"
295 select CEVT_R4K
296 select CSRC_R4K
297 select DMA_COHERENT
298 select HW_HAS_PCI
299 select IRQ_CPU
300 select IRQ_CPU_RM7K
301 select IRQ_CPU_RM9K
302 select SWAP_IO_SPACE
303 select SYS_HAS_CPU_RM9000
304 select SYS_HAS_EARLY_PRINTK
305 select SYS_SUPPORTS_32BIT_KERNEL
306 select SYS_SUPPORTS_64BIT_KERNEL
307 select SYS_SUPPORTS_BIG_ENDIAN
308 select SYS_SUPPORTS_HIGHMEM
309 select SYS_SUPPORTS_SMP
310 help
311 Yosemite is an evaluation board for the RM9000x2 processor
312 manufactured by PMC-Sierra.
313
314 config SGI_IP22
315 bool "SGI IP22 (Indy/Indigo2)"
316 select ARC
317 select ARC32
318 select BOOT_ELF32
319 select CEVT_R4K
320 select CSRC_R4K
321 select DEFAULT_SGI_PARTITION
322 select DMA_NONCOHERENT
323 select HW_HAS_EISA
324 select I8253
325 select I8259
326 select IP22_CPU_SCACHE
327 select IRQ_CPU
328 select GENERIC_ISA_DMA_SUPPORT_BROKEN
329 select SGI_HAS_DS1286
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.
347
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.
368
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_DS1286
385 select SGI_HAS_I8042
386 select SGI_HAS_INDYDOG
387 select SGI_HAS_HAL2
388 select SGI_HAS_SEEQ
389 select SGI_HAS_WD93
390 select SGI_HAS_ZILOG
391 select SWAP_IO_SPACE
392 select SYS_HAS_CPU_R10000
393 select SYS_HAS_EARLY_PRINTK
394 select SYS_SUPPORTS_64BIT_KERNEL
395 select SYS_SUPPORTS_BIG_ENDIAN
396 help
397 This is the SGI Indigo2 with R10000 processor. To compile a Linux
398 kernel that runs on these, say Y here.
399
400 config SGI_IP32
401 bool "SGI IP32 (O2)"
402 select ARC
403 select ARC32
404 select BOOT_ELF32
405 select CEVT_R4K
406 select CSRC_R4K
407 select DMA_NONCOHERENT
408 select HW_HAS_PCI
409 select IRQ_CPU
410 select R5000_CPU_SCACHE
411 select RM7000_CPU_SCACHE
412 select SYS_HAS_CPU_R5000
413 select SYS_HAS_CPU_R10000 if BROKEN
414 select SYS_HAS_CPU_RM7000
415 select SYS_HAS_CPU_NEVADA
416 select SYS_SUPPORTS_64BIT_KERNEL
417 select SYS_SUPPORTS_BIG_ENDIAN
418 help
419 If you want this kernel to run on SGI O2 workstation, say Y here.
420
421 config SIBYTE_CRHINE
422 bool "Sibyte BCM91120C-CRhine"
423 depends on EXPERIMENTAL
424 select BOOT_ELF32
425 select DMA_COHERENT
426 select SIBYTE_BCM1120
427 select SWAP_IO_SPACE
428 select SYS_HAS_CPU_SB1
429 select SYS_SUPPORTS_BIG_ENDIAN
430 select SYS_SUPPORTS_LITTLE_ENDIAN
431
432 config SIBYTE_CARMEL
433 bool "Sibyte BCM91120x-Carmel"
434 depends on EXPERIMENTAL
435 select BOOT_ELF32
436 select DMA_COHERENT
437 select SIBYTE_BCM1120
438 select SWAP_IO_SPACE
439 select SYS_HAS_CPU_SB1
440 select SYS_SUPPORTS_BIG_ENDIAN
441 select SYS_SUPPORTS_LITTLE_ENDIAN
442
443 config SIBYTE_CRHONE
444 bool "Sibyte BCM91125C-CRhone"
445 depends on EXPERIMENTAL
446 select BOOT_ELF32
447 select DMA_COHERENT
448 select SIBYTE_BCM1125
449 select SWAP_IO_SPACE
450 select SYS_HAS_CPU_SB1
451 select SYS_SUPPORTS_BIG_ENDIAN
452 select SYS_SUPPORTS_HIGHMEM
453 select SYS_SUPPORTS_LITTLE_ENDIAN
454
455 config SIBYTE_RHONE
456 bool "Sibyte BCM91125E-Rhone"
457 depends on EXPERIMENTAL
458 select BOOT_ELF32
459 select DMA_COHERENT
460 select SIBYTE_BCM1125H
461 select SWAP_IO_SPACE
462 select SYS_HAS_CPU_SB1
463 select SYS_SUPPORTS_BIG_ENDIAN
464 select SYS_SUPPORTS_LITTLE_ENDIAN
465
466 config SIBYTE_SWARM
467 bool "Sibyte BCM91250A-SWARM"
468 select BOOT_ELF32
469 select DMA_COHERENT
470 select NR_CPUS_DEFAULT_2
471 select SIBYTE_SB1250
472 select SWAP_IO_SPACE
473 select SYS_HAS_CPU_SB1
474 select SYS_SUPPORTS_BIG_ENDIAN
475 select SYS_SUPPORTS_HIGHMEM
476 select SYS_SUPPORTS_LITTLE_ENDIAN
477 select ZONE_DMA32 if 64BIT
478
479 config SIBYTE_LITTLESUR
480 bool "Sibyte BCM91250C2-LittleSur"
481 depends on EXPERIMENTAL
482 select BOOT_ELF32
483 select DMA_COHERENT
484 select NR_CPUS_DEFAULT_2
485 select SIBYTE_SB1250
486 select SWAP_IO_SPACE
487 select SYS_HAS_CPU_SB1
488 select SYS_SUPPORTS_BIG_ENDIAN
489 select SYS_SUPPORTS_HIGHMEM
490 select SYS_SUPPORTS_LITTLE_ENDIAN
491
492 config SIBYTE_SENTOSA
493 bool "Sibyte BCM91250E-Sentosa"
494 depends on EXPERIMENTAL
495 select BOOT_ELF32
496 select DMA_COHERENT
497 select NR_CPUS_DEFAULT_2
498 select SIBYTE_SB1250
499 select SWAP_IO_SPACE
500 select SYS_HAS_CPU_SB1
501 select SYS_SUPPORTS_BIG_ENDIAN
502 select SYS_SUPPORTS_LITTLE_ENDIAN
503
504 config SIBYTE_BIGSUR
505 bool "Sibyte BCM91480B-BigSur"
506 select BOOT_ELF32
507 select DMA_COHERENT
508 select NR_CPUS_DEFAULT_4
509 select SIBYTE_BCM1x80
510 select SWAP_IO_SPACE
511 select SYS_HAS_CPU_SB1
512 select SYS_SUPPORTS_BIG_ENDIAN
513 select SYS_SUPPORTS_HIGHMEM
514 select SYS_SUPPORTS_LITTLE_ENDIAN
515 select ZONE_DMA32 if 64BIT
516
517 config SNI_RM
518 bool "SNI RM200/300/400"
519 select ARC if CPU_LITTLE_ENDIAN
520 select ARC32 if CPU_LITTLE_ENDIAN
521 select SNIPROM if CPU_BIG_ENDIAN
522 select ARCH_MAY_HAVE_PC_FDC
523 select BOOT_ELF32
524 select CEVT_R4K
525 select CSRC_R4K
526 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
527 select DMA_NONCOHERENT
528 select GENERIC_ISA_DMA
529 select HW_HAS_EISA
530 select HW_HAS_PCI
531 select IRQ_CPU
532 select I8253
533 select I8259
534 select ISA
535 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
536 select SYS_HAS_CPU_R4X00
537 select SYS_HAS_CPU_R5000
538 select SYS_HAS_CPU_R10000
539 select R5000_CPU_SCACHE
540 select SYS_HAS_EARLY_PRINTK
541 select SYS_SUPPORTS_32BIT_KERNEL
542 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
543 select SYS_SUPPORTS_BIG_ENDIAN
544 select SYS_SUPPORTS_HIGHMEM
545 select SYS_SUPPORTS_LITTLE_ENDIAN
546 help
547 The SNI RM200/300/400 are MIPS-based machines manufactured by
548 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
549 Technology and now in turn merged with Fujitsu. Say Y here to
550 support this machine type.
551
552 config MACH_TX39XX
553 bool "Toshiba TX39 series based machines"
554
555 config MACH_TX49XX
556 bool "Toshiba TX49 series based machines"
557
558 config MIKROTIK_RB532
559 bool "Mikrotik RB532 boards"
560 select CEVT_R4K
561 select CSRC_R4K
562 select DMA_NONCOHERENT
563 select GENERIC_HARDIRQS_NO__DO_IRQ
564 select HW_HAS_PCI
565 select IRQ_CPU
566 select SYS_HAS_CPU_MIPS32_R1
567 select SYS_SUPPORTS_32BIT_KERNEL
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569 select SWAP_IO_SPACE
570 select BOOT_RAW
571 select ARCH_REQUIRE_GPIOLIB
572 help
573 Support the Mikrotik(tm) RouterBoard 532 series,
574 based on the IDT RC32434 SoC.
575
576 config WR_PPMC
577 bool "Wind River PPMC board"
578 select CEVT_R4K
579 select CSRC_R4K
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.
598
599 endchoice
600
601 source "arch/mips/alchemy/Kconfig"
602 source "arch/mips/basler/excite/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"
610
611 endmenu
612
613 config RWSEM_GENERIC_SPINLOCK
614 bool
615 default y
616
617 config RWSEM_XCHGADD_ALGORITHM
618 bool
619
620 config ARCH_HAS_ILOG2_U32
621 bool
622 default n
623
624 config ARCH_HAS_ILOG2_U64
625 bool
626 default n
627
628 config ARCH_SUPPORTS_OPROFILE
629 bool
630 default y if !MIPS_MT_SMTC
631
632 config GENERIC_FIND_NEXT_BIT
633 bool
634 default y
635
636 config GENERIC_HWEIGHT
637 bool
638 default y
639
640 config GENERIC_CALIBRATE_DELAY
641 bool
642 default y
643
644 config GENERIC_CLOCKEVENTS
645 bool
646 default y
647
648 config GENERIC_TIME
649 bool
650 default y
651
652 config GENERIC_CMOS_UPDATE
653 bool
654 default y
655
656 config SCHED_NO_NO_OMIT_FRAME_POINTER
657 bool
658 default y
659
660 config GENERIC_HARDIRQS_NO__DO_IRQ
661 bool
662 default n
663
664 #
665 # Select some configuration options automatically based on user selections.
666 #
667 config ARC
668 bool
669
670 config ARCH_MAY_HAVE_PC_FDC
671 bool
672
673 config BOOT_RAW
674 bool
675
676 config CEVT_BCM1480
677 bool
678
679 config CEVT_DS1287
680 bool
681
682 config CEVT_GT641XX
683 bool
684
685 config CEVT_R4K
686 bool
687
688 config CEVT_SB1250
689 bool
690
691 config CEVT_TXX9
692 bool
693
694 config CSRC_BCM1480
695 bool
696
697 config CSRC_IOASIC
698 bool
699
700 config CSRC_R4K
701 bool
702
703 config CSRC_SB1250
704 bool
705
706 config GPIO_TXX9
707 select GENERIC_GPIO
708 select ARCH_REQUIRE_GPIOLIB
709 bool
710
711 config CFE
712 bool
713
714 config DMA_COHERENT
715 bool
716
717 config DMA_IP27
718 bool
719
720 config DMA_NONCOHERENT
721 bool
722 select DMA_NEED_PCI_MAP_STATE
723
724 config DMA_NEED_PCI_MAP_STATE
725 bool
726
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.
734
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.
740
741 config SYS_HAS_EARLY_PRINTK
742 bool
743
744 config HOTPLUG_CPU
745 bool
746 default n
747
748 config I8259
749 bool
750
751 config MIPS_BONITO64
752 bool
753
754 config MIPS_MSC
755 bool
756
757 config MIPS_NILE4
758 bool
759
760 config MIPS_DISABLE_OBSOLETE_IDE
761 bool
762
763 config SYNC_R4K
764 bool
765
766 config NO_IOPORT
767 def_bool n
768
769 config GENERIC_ISA_DMA
770 bool
771 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
772
773 config GENERIC_ISA_DMA_SUPPORT_BROKEN
774 bool
775 select GENERIC_ISA_DMA
776
777 config GENERIC_GPIO
778 bool
779
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.
793
794 config CPU_BIG_ENDIAN
795 bool "Big endian"
796 depends on SYS_SUPPORTS_BIG_ENDIAN
797
798 config CPU_LITTLE_ENDIAN
799 bool "Little endian"
800 depends on SYS_SUPPORTS_LITTLE_ENDIAN
801 help
802
803 endchoice
804
805 config SYS_SUPPORTS_APM_EMULATION
806 bool
807
808 config SYS_SUPPORTS_BIG_ENDIAN
809 bool
810
811 config SYS_SUPPORTS_LITTLE_ENDIAN
812 bool
813
814 config IRQ_CPU
815 bool
816
817 config IRQ_CPU_RM7K
818 bool
819
820 config IRQ_CPU_RM9K
821 bool
822
823 config IRQ_MSP_SLP
824 bool
825
826 config IRQ_MSP_CIC
827 bool
828
829 config IRQ_TXX9
830 bool
831
832 config IRQ_GT641XX
833 bool
834
835 config IRQ_GIC
836 bool
837
838 config MIPS_BOARDS_GEN
839 bool
840
841 config PCI_GT64XXX_PCI0
842 bool
843
844 config NO_EXCEPT_FILL
845 bool
846
847 config MIPS_RM9122
848 bool
849 select SERIAL_RM9000
850
851 config PNX8550
852 bool
853 select SOC_PNX8550
854
855 config SOC_PNX8550
856 bool
857 select DMA_NONCOHERENT
858 select HW_HAS_PCI
859 select SYS_HAS_CPU_MIPS32_R1
860 select SYS_HAS_EARLY_PRINTK
861 select SYS_SUPPORTS_32BIT_KERNEL
862 select GENERIC_HARDIRQS_NO__DO_IRQ
863 select GENERIC_GPIO
864
865 config SWAP_IO_SPACE
866 bool
867
868 config EMMA2RH
869 bool
870 depends on MARKEINS
871 default y
872
873 config SERIAL_RM9000
874 bool
875
876 config SGI_HAS_DS1286
877 bool
878
879 config SGI_HAS_INDYDOG
880 bool
881
882 config SGI_HAS_HAL2
883 bool
884
885 config SGI_HAS_SEEQ
886 bool
887
888 config SGI_HAS_WD93
889 bool
890
891 config SGI_HAS_ZILOG
892 bool
893
894 config SGI_HAS_I8042
895 bool
896
897 config DEFAULT_SGI_PARTITION
898 bool
899
900 config ARC32
901 bool
902
903 config SNIPROM
904 bool
905
906 config BOOT_ELF32
907 bool
908
909 config MIPS_L1_CACHE_SHIFT
910 int
911 default "4" if MACH_DECSTATION || MIKROTIK_RB532
912 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
913 default "4" if PMC_MSP4200_EVAL
914 default "5"
915
916 config HAVE_STD_PC_SERIAL_PORT
917 bool
918
919 config ARC_CONSOLE
920 bool "ARC console support"
921 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
922
923 config ARC_MEMORY
924 bool
925 depends on MACH_JAZZ || SNI_RM || SGI_IP32
926 default y
927
928 config ARC_PROMLIB
929 bool
930 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
931 default y
932
933 config ARC64
934 bool
935
936 config BOOT_ELF64
937 bool
938
939 menu "CPU selection"
940
941 choice
942 prompt "CPU type"
943 default CPU_R4X00
944
945 config CPU_LOONGSON2
946 bool "Loongson 2"
947 depends on SYS_HAS_CPU_LOONGSON2
948 select CPU_SUPPORTS_32BIT_KERNEL
949 select CPU_SUPPORTS_64BIT_KERNEL
950 select CPU_SUPPORTS_HIGHMEM
951 help
952 The Loongson 2E processor implements the MIPS III instruction set
953 with many extensions.
954
955 config CPU_MIPS32_R1
956 bool "MIPS32 Release 1"
957 depends on SYS_HAS_CPU_MIPS32_R1
958 select CPU_HAS_LLSC
959 select CPU_HAS_PREFETCH
960 select CPU_SUPPORTS_32BIT_KERNEL
961 select CPU_SUPPORTS_HIGHMEM
962 help
963 Choose this option to build a kernel for release 1 or later of the
964 MIPS32 architecture. Most modern embedded systems with a 32-bit
965 MIPS processor are based on a MIPS32 processor. If you know the
966 specific type of processor in your system, choose those that one
967 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
968 Release 2 of the MIPS32 architecture is available since several
969 years so chances are you even have a MIPS32 Release 2 processor
970 in which case you should choose CPU_MIPS32_R2 instead for better
971 performance.
972
973 config CPU_MIPS32_R2
974 bool "MIPS32 Release 2"
975 depends on SYS_HAS_CPU_MIPS32_R2
976 select CPU_HAS_LLSC
977 select CPU_HAS_PREFETCH
978 select CPU_SUPPORTS_32BIT_KERNEL
979 select CPU_SUPPORTS_HIGHMEM
980 help
981 Choose this option to build a kernel for release 2 or later of the
982 MIPS32 architecture. Most modern embedded systems with a 32-bit
983 MIPS processor are based on a MIPS32 processor. If you know the
984 specific type of processor in your system, choose those that one
985 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
986
987 config CPU_MIPS64_R1
988 bool "MIPS64 Release 1"
989 depends on SYS_HAS_CPU_MIPS64_R1
990 select CPU_HAS_LLSC
991 select CPU_HAS_PREFETCH
992 select CPU_SUPPORTS_32BIT_KERNEL
993 select CPU_SUPPORTS_64BIT_KERNEL
994 select CPU_SUPPORTS_HIGHMEM
995 help
996 Choose this option to build a kernel for release 1 or later of the
997 MIPS64 architecture. Many modern embedded systems with a 64-bit
998 MIPS processor are based on a MIPS64 processor. If you know the
999 specific type of processor in your system, choose those that one
1000 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1001 Release 2 of the MIPS64 architecture is available since several
1002 years so chances are you even have a MIPS64 Release 2 processor
1003 in which case you should choose CPU_MIPS64_R2 instead for better
1004 performance.
1005
1006 config CPU_MIPS64_R2
1007 bool "MIPS64 Release 2"
1008 depends on SYS_HAS_CPU_MIPS64_R2
1009 select CPU_HAS_LLSC
1010 select CPU_HAS_PREFETCH
1011 select CPU_SUPPORTS_32BIT_KERNEL
1012 select CPU_SUPPORTS_64BIT_KERNEL
1013 select CPU_SUPPORTS_HIGHMEM
1014 help
1015 Choose this option to build a kernel for release 2 or later of the
1016 MIPS64 architecture. Many modern embedded systems with a 64-bit
1017 MIPS processor are based on a MIPS64 processor. If you know the
1018 specific type of processor in your system, choose those that one
1019 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1020
1021 config CPU_R3000
1022 bool "R3000"
1023 depends on SYS_HAS_CPU_R3000
1024 select CPU_HAS_WB
1025 select CPU_SUPPORTS_32BIT_KERNEL
1026 select CPU_SUPPORTS_HIGHMEM
1027 help
1028 Please make sure to pick the right CPU type. Linux/MIPS is not
1029 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1030 *not* work on R4000 machines and vice versa. However, since most
1031 of the supported machines have an R4000 (or similar) CPU, R4x00
1032 might be a safe bet. If the resulting kernel does not work,
1033 try to recompile with R3000.
1034
1035 config CPU_TX39XX
1036 bool "R39XX"
1037 depends on SYS_HAS_CPU_TX39XX
1038 select CPU_SUPPORTS_32BIT_KERNEL
1039
1040 config CPU_VR41XX
1041 bool "R41xx"
1042 depends on SYS_HAS_CPU_VR41XX
1043 select CPU_SUPPORTS_32BIT_KERNEL
1044 select CPU_SUPPORTS_64BIT_KERNEL
1045 help
1046 The options selects support for the NEC VR4100 series of processors.
1047 Only choose this option if you have one of these processors as a
1048 kernel built with this option will not run on any other type of
1049 processor or vice versa.
1050
1051 config CPU_R4300
1052 bool "R4300"
1053 depends on SYS_HAS_CPU_R4300
1054 select CPU_HAS_LLSC
1055 select CPU_SUPPORTS_32BIT_KERNEL
1056 select CPU_SUPPORTS_64BIT_KERNEL
1057 help
1058 MIPS Technologies R4300-series processors.
1059
1060 config CPU_R4X00
1061 bool "R4x00"
1062 depends on SYS_HAS_CPU_R4X00
1063 select CPU_HAS_LLSC
1064 select CPU_SUPPORTS_32BIT_KERNEL
1065 select CPU_SUPPORTS_64BIT_KERNEL
1066 help
1067 MIPS Technologies R4000-series processors other than 4300, including
1068 the R4000, R4400, R4600, and 4700.
1069
1070 config CPU_TX49XX
1071 bool "R49XX"
1072 depends on SYS_HAS_CPU_TX49XX
1073 select CPU_HAS_LLSC
1074 select CPU_HAS_PREFETCH
1075 select CPU_SUPPORTS_32BIT_KERNEL
1076 select CPU_SUPPORTS_64BIT_KERNEL
1077
1078 config CPU_R5000
1079 bool "R5000"
1080 depends on SYS_HAS_CPU_R5000
1081 select CPU_HAS_LLSC
1082 select CPU_SUPPORTS_32BIT_KERNEL
1083 select CPU_SUPPORTS_64BIT_KERNEL
1084 help
1085 MIPS Technologies R5000-series processors other than the Nevada.
1086
1087 config CPU_R5432
1088 bool "R5432"
1089 depends on SYS_HAS_CPU_R5432
1090 select CPU_HAS_LLSC
1091 select CPU_SUPPORTS_32BIT_KERNEL
1092 select CPU_SUPPORTS_64BIT_KERNEL
1093
1094 config CPU_R6000
1095 bool "R6000"
1096 depends on EXPERIMENTAL
1097 select CPU_HAS_LLSC
1098 depends on SYS_HAS_CPU_R6000
1099 select CPU_SUPPORTS_32BIT_KERNEL
1100 help
1101 MIPS Technologies R6000 and R6000A series processors. Note these
1102 processors are extremely rare and the support for them is incomplete.
1103
1104 config CPU_NEVADA
1105 bool "RM52xx"
1106 depends on SYS_HAS_CPU_NEVADA
1107 select CPU_HAS_LLSC
1108 select CPU_SUPPORTS_32BIT_KERNEL
1109 select CPU_SUPPORTS_64BIT_KERNEL
1110 help
1111 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1112
1113 config CPU_R8000
1114 bool "R8000"
1115 depends on EXPERIMENTAL
1116 depends on SYS_HAS_CPU_R8000
1117 select CPU_HAS_LLSC
1118 select CPU_HAS_PREFETCH
1119 select CPU_SUPPORTS_64BIT_KERNEL
1120 help
1121 MIPS Technologies R8000 processors. Note these processors are
1122 uncommon and the support for them is incomplete.
1123
1124 config CPU_R10000
1125 bool "R10000"
1126 depends on SYS_HAS_CPU_R10000
1127 select CPU_HAS_LLSC
1128 select CPU_HAS_PREFETCH
1129 select CPU_SUPPORTS_32BIT_KERNEL
1130 select CPU_SUPPORTS_64BIT_KERNEL
1131 select CPU_SUPPORTS_HIGHMEM
1132 help
1133 MIPS Technologies R10000-series processors.
1134
1135 config CPU_RM7000
1136 bool "RM7000"
1137 depends on SYS_HAS_CPU_RM7000
1138 select CPU_HAS_LLSC
1139 select CPU_HAS_PREFETCH
1140 select CPU_SUPPORTS_32BIT_KERNEL
1141 select CPU_SUPPORTS_64BIT_KERNEL
1142 select CPU_SUPPORTS_HIGHMEM
1143
1144 config CPU_RM9000
1145 bool "RM9000"
1146 depends on SYS_HAS_CPU_RM9000
1147 select CPU_HAS_LLSC
1148 select CPU_HAS_PREFETCH
1149 select CPU_SUPPORTS_32BIT_KERNEL
1150 select CPU_SUPPORTS_64BIT_KERNEL
1151 select CPU_SUPPORTS_HIGHMEM
1152 select WEAK_ORDERING
1153
1154 config CPU_SB1
1155 bool "SB1"
1156 depends on SYS_HAS_CPU_SB1
1157 select CPU_HAS_LLSC
1158 select CPU_SUPPORTS_32BIT_KERNEL
1159 select CPU_SUPPORTS_64BIT_KERNEL
1160 select CPU_SUPPORTS_HIGHMEM
1161 select WEAK_ORDERING
1162
1163 endchoice
1164
1165 config SYS_HAS_CPU_LOONGSON2
1166 bool
1167
1168 config SYS_HAS_CPU_MIPS32_R1
1169 bool
1170
1171 config SYS_HAS_CPU_MIPS32_R2
1172 bool
1173
1174 config SYS_HAS_CPU_MIPS64_R1
1175 bool
1176
1177 config SYS_HAS_CPU_MIPS64_R2
1178 bool
1179
1180 config SYS_HAS_CPU_R3000
1181 bool
1182
1183 config SYS_HAS_CPU_TX39XX
1184 bool
1185
1186 config SYS_HAS_CPU_VR41XX
1187 bool
1188
1189 config SYS_HAS_CPU_R4300
1190 bool
1191
1192 config SYS_HAS_CPU_R4X00
1193 bool
1194
1195 config SYS_HAS_CPU_TX49XX
1196 bool
1197
1198 config SYS_HAS_CPU_R5000
1199 bool
1200
1201 config SYS_HAS_CPU_R5432
1202 bool
1203
1204 config SYS_HAS_CPU_R6000
1205 bool
1206
1207 config SYS_HAS_CPU_NEVADA
1208 bool
1209
1210 config SYS_HAS_CPU_R8000
1211 bool
1212
1213 config SYS_HAS_CPU_R10000
1214 bool
1215
1216 config SYS_HAS_CPU_RM7000
1217 bool
1218
1219 config SYS_HAS_CPU_RM9000
1220 bool
1221
1222 config SYS_HAS_CPU_SB1
1223 bool
1224
1225 #
1226 # CPU may reorder R->R, R->W, W->R, W->W
1227 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1228 #
1229 config WEAK_ORDERING
1230 bool
1231
1232 #
1233 # CPU may reorder reads and writes beyond LL/SC
1234 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1235 #
1236 config WEAK_REORDERING_BEYOND_LLSC
1237 bool
1238 endmenu
1239
1240 #
1241 # These two indicate any level of the MIPS32 and MIPS64 architecture
1242 #
1243 config CPU_MIPS32
1244 bool
1245 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1246
1247 config CPU_MIPS64
1248 bool
1249 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1250
1251 #
1252 # These two indicate the revision of the architecture, either Release 1 or Release 2
1253 #
1254 config CPU_MIPSR1
1255 bool
1256 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1257
1258 config CPU_MIPSR2
1259 bool
1260 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1261
1262 config SYS_SUPPORTS_32BIT_KERNEL
1263 bool
1264 config SYS_SUPPORTS_64BIT_KERNEL
1265 bool
1266 config CPU_SUPPORTS_32BIT_KERNEL
1267 bool
1268 config CPU_SUPPORTS_64BIT_KERNEL
1269 bool
1270
1271 #
1272 # Set to y for ptrace access to watch registers.
1273 #
1274 config HARDWARE_WATCHPOINTS
1275 bool
1276 default y if CPU_MIPS32 || CPU_MIPS64
1277
1278 menu "Kernel type"
1279
1280 choice
1281
1282 prompt "Kernel code model"
1283 help
1284 You should only select this option if you have a workload that
1285 actually benefits from 64-bit processing or if your machine has
1286 large memory. You will only be presented a single option in this
1287 menu if your system does not support both 32-bit and 64-bit kernels.
1288
1289 config 32BIT
1290 bool "32-bit kernel"
1291 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1292 select TRAD_SIGNALS
1293 help
1294 Select this option if you want to build a 32-bit kernel.
1295 config 64BIT
1296 bool "64-bit kernel"
1297 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1298 help
1299 Select this option if you want to build a 64-bit kernel.
1300
1301 endchoice
1302
1303 choice
1304 prompt "Kernel page size"
1305 default PAGE_SIZE_4KB
1306
1307 config PAGE_SIZE_4KB
1308 bool "4kB"
1309 help
1310 This option select the standard 4kB Linux page size. On some
1311 R3000-family processors this is the only available page size. Using
1312 4kB page size will minimize memory consumption and is therefore
1313 recommended for low memory systems.
1314
1315 config PAGE_SIZE_8KB
1316 bool "8kB"
1317 depends on EXPERIMENTAL && CPU_R8000
1318 help
1319 Using 8kB page size will result in higher performance kernel at
1320 the price of higher memory consumption. This option is available
1321 only on the R8000 processor. Not that at the time of this writing
1322 this option is still high experimental; there are also issues with
1323 compatibility of user applications.
1324
1325 config PAGE_SIZE_16KB
1326 bool "16kB"
1327 depends on !CPU_R3000 && !CPU_TX39XX
1328 help
1329 Using 16kB page size will result in higher performance kernel at
1330 the price of higher memory consumption. This option is available on
1331 all non-R3000 family processors. Note that you will need a suitable
1332 Linux distribution to support this.
1333
1334 config PAGE_SIZE_64KB
1335 bool "64kB"
1336 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1337 help
1338 Using 64kB page size will result in higher performance kernel at
1339 the price of higher memory consumption. This option is available on
1340 all non-R3000 family processor. Not that at the time of this
1341 writing this option is still high experimental.
1342
1343 endchoice
1344
1345 config BOARD_SCACHE
1346 bool
1347
1348 config IP22_CPU_SCACHE
1349 bool
1350 select BOARD_SCACHE
1351
1352 #
1353 # Support for a MIPS32 / MIPS64 style S-caches
1354 #
1355 config MIPS_CPU_SCACHE
1356 bool
1357 select BOARD_SCACHE
1358
1359 config R5000_CPU_SCACHE
1360 bool
1361 select BOARD_SCACHE
1362
1363 config RM7000_CPU_SCACHE
1364 bool
1365 select BOARD_SCACHE
1366
1367 config SIBYTE_DMA_PAGEOPS
1368 bool "Use DMA to clear/copy pages"
1369 depends on CPU_SB1
1370 help
1371 Instead of using the CPU to zero and copy pages, use a Data Mover
1372 channel. These DMA channels are otherwise unused by the standard
1373 SiByte Linux port. Seems to give a small performance benefit.
1374
1375 config CPU_HAS_PREFETCH
1376 bool
1377
1378 choice
1379 prompt "MIPS MT options"
1380
1381 config MIPS_MT_DISABLED
1382 bool "Disable multithreading support."
1383 help
1384 Use this option if your workload can't take advantage of
1385 MIPS hardware multithreading support. On systems that don't have
1386 the option of an MT-enabled processor this option will be the only
1387 option in this menu.
1388
1389 config MIPS_MT_SMP
1390 bool "Use 1 TC on each available VPE for SMP"
1391 depends on SYS_SUPPORTS_MULTITHREADING
1392 select CPU_MIPSR2_IRQ_VI
1393 select CPU_MIPSR2_IRQ_EI
1394 select MIPS_MT
1395 select NR_CPUS_DEFAULT_2
1396 select SMP
1397 select SYS_SUPPORTS_SCHED_SMT if SMP
1398 select SYS_SUPPORTS_SMP
1399 select SMP_UP
1400 help
1401 This is a kernel model which is also known a VSMP or lately
1402 has been marketesed into SMVP.
1403
1404 config MIPS_MT_SMTC
1405 bool "SMTC: Use all TCs on all VPEs for SMP"
1406 depends on CPU_MIPS32_R2
1407 #depends on CPU_MIPS64_R2 # once there is hardware ...
1408 depends on SYS_SUPPORTS_MULTITHREADING
1409 select CPU_MIPSR2_IRQ_VI
1410 select CPU_MIPSR2_IRQ_EI
1411 select MIPS_MT
1412 select NR_CPUS_DEFAULT_8
1413 select SMP
1414 select SYS_SUPPORTS_SMP
1415 select SMP_UP
1416 help
1417 This is a kernel model which is known a SMTC or lately has been
1418 marketesed into SMVP.
1419
1420 endchoice
1421
1422 config MIPS_MT
1423 bool
1424
1425 config SCHED_SMT
1426 bool "SMT (multithreading) scheduler support"
1427 depends on SYS_SUPPORTS_SCHED_SMT
1428 default n
1429 help
1430 SMT scheduler support improves the CPU scheduler's decision making
1431 when dealing with MIPS MT enabled cores at a cost of slightly
1432 increased overhead in some places. If unsure say N here.
1433
1434 config SYS_SUPPORTS_SCHED_SMT
1435 bool
1436
1437
1438 config SYS_SUPPORTS_MULTITHREADING
1439 bool
1440
1441 config MIPS_MT_FPAFF
1442 bool "Dynamic FPU affinity for FP-intensive threads"
1443 default y
1444 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1445
1446 config MIPS_VPE_LOADER
1447 bool "VPE loader support."
1448 depends on SYS_SUPPORTS_MULTITHREADING
1449 select CPU_MIPSR2_IRQ_VI
1450 select CPU_MIPSR2_IRQ_EI
1451 select MIPS_MT
1452 help
1453 Includes a loader for loading an elf relocatable object
1454 onto another VPE and running it.
1455
1456 config MIPS_MT_SMTC_IM_BACKSTOP
1457 bool "Use per-TC register bits as backstop for inhibited IM bits"
1458 depends on MIPS_MT_SMTC
1459 default n
1460 help
1461 To support multiple TC microthreads acting as "CPUs" within
1462 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1463 during interrupt handling. To support legacy drivers and interrupt
1464 controller management code, SMTC has a "backstop" to track and
1465 if necessary restore the interrupt mask. This has some performance
1466 impact on interrupt service overhead.
1467
1468 config MIPS_MT_SMTC_IRQAFF
1469 bool "Support IRQ affinity API"
1470 depends on MIPS_MT_SMTC
1471 default n
1472 help
1473 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1474 for SMTC Linux kernel. Requires platform support, of which
1475 an example can be found in the MIPS kernel i8259 and Malta
1476 platform code. Adds some overhead to interrupt dispatch, and
1477 should be used only if you know what you are doing.
1478
1479 config MIPS_VPE_LOADER_TOM
1480 bool "Load VPE program into memory hidden from linux"
1481 depends on MIPS_VPE_LOADER
1482 default y
1483 help
1484 The loader can use memory that is present but has been hidden from
1485 Linux using the kernel command line option "mem=xxMB". It's up to
1486 you to ensure the amount you put in the option and the space your
1487 program requires is less or equal to the amount physically present.
1488
1489 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1490 config MIPS_VPE_APSP_API
1491 bool "Enable support for AP/SP API (RTLX)"
1492 depends on MIPS_VPE_LOADER
1493 help
1494
1495 config MIPS_APSP_KSPD
1496 bool "Enable KSPD"
1497 depends on MIPS_VPE_APSP_API
1498 default y
1499 help
1500 KSPD is a kernel daemon that accepts syscall requests from the SP
1501 side, actions them and returns the results. It also handles the
1502 "exit" syscall notifying other kernel modules the SP program is
1503 exiting. You probably want to say yes here.
1504
1505 config MIPS_CMP
1506 bool "MIPS CMP framework support"
1507 depends on SYS_SUPPORTS_MIPS_CMP
1508 select SYNC_R4K if BROKEN
1509 select SYS_SUPPORTS_SMP
1510 select SYS_SUPPORTS_SCHED_SMT if SMP
1511 select WEAK_ORDERING
1512 default n
1513 help
1514 This is a placeholder option for the GCMP work. It will need to
1515 be handled differently...
1516
1517 config SB1_PASS_1_WORKAROUNDS
1518 bool
1519 depends on CPU_SB1_PASS_1
1520 default y
1521
1522 config SB1_PASS_2_WORKAROUNDS
1523 bool
1524 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1525 default y
1526
1527 config SB1_PASS_2_1_WORKAROUNDS
1528 bool
1529 depends on CPU_SB1 && CPU_SB1_PASS_2
1530 default y
1531
1532 config 64BIT_PHYS_ADDR
1533 bool
1534
1535 config CPU_HAS_LLSC
1536 bool
1537
1538 config CPU_HAS_SMARTMIPS
1539 depends on SYS_SUPPORTS_SMARTMIPS
1540 bool "Support for the SmartMIPS ASE"
1541 help
1542 SmartMIPS is a extension of the MIPS32 architecture aimed at
1543 increased security at both hardware and software level for
1544 smartcards. Enabling this option will allow proper use of the
1545 SmartMIPS instructions by Linux applications. However a kernel with
1546 this option will not work on a MIPS core without SmartMIPS core. If
1547 you don't know you probably don't have SmartMIPS and should say N
1548 here.
1549
1550 config CPU_HAS_WB
1551 bool
1552
1553 #
1554 # Vectored interrupt mode is an R2 feature
1555 #
1556 config CPU_MIPSR2_IRQ_VI
1557 bool
1558
1559 #
1560 # Extended interrupt mode is an R2 feature
1561 #
1562 config CPU_MIPSR2_IRQ_EI
1563 bool
1564
1565 config CPU_HAS_SYNC
1566 bool
1567 depends on !CPU_R3000
1568 default y
1569
1570 config GENERIC_CLOCKEVENTS_BROADCAST
1571 bool
1572
1573 #
1574 # CPU non-features
1575 #
1576 config CPU_DADDI_WORKAROUNDS
1577 bool
1578
1579 config CPU_R4000_WORKAROUNDS
1580 bool
1581 select CPU_R4400_WORKAROUNDS
1582
1583 config CPU_R4400_WORKAROUNDS
1584 bool
1585
1586 #
1587 # Use the generic interrupt handling code in kernel/irq/:
1588 #
1589 config GENERIC_HARDIRQS
1590 bool
1591 default y
1592
1593 config GENERIC_IRQ_PROBE
1594 bool
1595 default y
1596
1597 config IRQ_PER_CPU
1598 bool
1599
1600 #
1601 # - Highmem only makes sense for the 32-bit kernel.
1602 # - The current highmem code will only work properly on physically indexed
1603 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1604 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1605 # moment we protect the user and offer the highmem option only on machines
1606 # where it's known to be safe. This will not offer highmem on a few systems
1607 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1608 # indexed CPUs but we're playing safe.
1609 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1610 # know they might have memory configurations that could make use of highmem
1611 # support.
1612 #
1613 config HIGHMEM
1614 bool "High Memory Support"
1615 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1616
1617 config CPU_SUPPORTS_HIGHMEM
1618 bool
1619
1620 config SYS_SUPPORTS_HIGHMEM
1621 bool
1622
1623 config SYS_SUPPORTS_SMARTMIPS
1624 bool
1625
1626 config ARCH_FLATMEM_ENABLE
1627 def_bool y
1628 depends on !NUMA
1629
1630 config ARCH_DISCONTIGMEM_ENABLE
1631 bool
1632 default y if SGI_IP27
1633 help
1634 Say Y to support efficient handling of discontiguous physical memory,
1635 for architectures which are either NUMA (Non-Uniform Memory Access)
1636 or have huge holes in the physical address space for other reasons.
1637 See <file:Documentation/vm/numa> for more.
1638
1639 config ARCH_POPULATES_NODE_MAP
1640 def_bool y
1641
1642 config ARCH_SPARSEMEM_ENABLE
1643 bool
1644 select SPARSEMEM_STATIC
1645
1646 config NUMA
1647 bool "NUMA Support"
1648 depends on SYS_SUPPORTS_NUMA
1649 help
1650 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1651 Access). This option improves performance on systems with more
1652 than two nodes; on two node systems it is generally better to
1653 leave it disabled; on single node systems disable this option
1654 disabled.
1655
1656 config SYS_SUPPORTS_NUMA
1657 bool
1658
1659 config NODES_SHIFT
1660 int
1661 default "6"
1662 depends on NEED_MULTIPLE_NODES
1663
1664 source "mm/Kconfig"
1665
1666 config SMP
1667 bool "Multi-Processing support"
1668 depends on SYS_SUPPORTS_SMP
1669 select IRQ_PER_CPU
1670 select USE_GENERIC_SMP_HELPERS
1671 help
1672 This enables support for systems with more than one CPU. If you have
1673 a system with only one CPU, like most personal computers, say N. If
1674 you have a system with more than one CPU, say Y.
1675
1676 If you say N here, the kernel will run on single and multiprocessor
1677 machines, but will use only one CPU of a multiprocessor machine. If
1678 you say Y here, the kernel will run on many, but not all,
1679 singleprocessor machines. On a singleprocessor machine, the kernel
1680 will run faster if you say N here.
1681
1682 People using multiprocessor machines who say Y here should also say
1683 Y to "Enhanced Real Time Clock Support", below.
1684
1685 See also the SMP-HOWTO available at
1686 <http://www.tldp.org/docs.html#howto>.
1687
1688 If you don't know what to do here, say N.
1689
1690 config SMP_UP
1691 bool
1692
1693 config SYS_SUPPORTS_MIPS_CMP
1694 bool
1695
1696 config SYS_SUPPORTS_SMP
1697 bool
1698
1699 config NR_CPUS_DEFAULT_1
1700 bool
1701
1702 config NR_CPUS_DEFAULT_2
1703 bool
1704
1705 config NR_CPUS_DEFAULT_4
1706 bool
1707
1708 config NR_CPUS_DEFAULT_8
1709 bool
1710
1711 config NR_CPUS_DEFAULT_16
1712 bool
1713
1714 config NR_CPUS_DEFAULT_32
1715 bool
1716
1717 config NR_CPUS_DEFAULT_64
1718 bool
1719
1720 config NR_CPUS
1721 int "Maximum number of CPUs (2-64)"
1722 range 1 64 if NR_CPUS_DEFAULT_1
1723 depends on SMP
1724 default "1" if NR_CPUS_DEFAULT_1
1725 default "2" if NR_CPUS_DEFAULT_2
1726 default "4" if NR_CPUS_DEFAULT_4
1727 default "8" if NR_CPUS_DEFAULT_8
1728 default "16" if NR_CPUS_DEFAULT_16
1729 default "32" if NR_CPUS_DEFAULT_32
1730 default "64" if NR_CPUS_DEFAULT_64
1731 help
1732 This allows you to specify the maximum number of CPUs which this
1733 kernel will support. The maximum supported value is 32 for 32-bit
1734 kernel and 64 for 64-bit kernels; the minimum value which makes
1735 sense is 1 for Qemu (useful only for kernel debugging purposes)
1736 and 2 for all others.
1737
1738 This is purely to save memory - each supported CPU adds
1739 approximately eight kilobytes to the kernel image. For best
1740 performance should round up your number of processors to the next
1741 power of two.
1742
1743 source "kernel/time/Kconfig"
1744
1745 #
1746 # Timer Interrupt Frequency Configuration
1747 #
1748
1749 choice
1750 prompt "Timer frequency"
1751 default HZ_250
1752 help
1753 Allows the configuration of the timer frequency.
1754
1755 config HZ_48
1756 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1757
1758 config HZ_100
1759 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1760
1761 config HZ_128
1762 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1763
1764 config HZ_250
1765 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1766
1767 config HZ_256
1768 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1769
1770 config HZ_1000
1771 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1772
1773 config HZ_1024
1774 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1775
1776 endchoice
1777
1778 config SYS_SUPPORTS_48HZ
1779 bool
1780
1781 config SYS_SUPPORTS_100HZ
1782 bool
1783
1784 config SYS_SUPPORTS_128HZ
1785 bool
1786
1787 config SYS_SUPPORTS_250HZ
1788 bool
1789
1790 config SYS_SUPPORTS_256HZ
1791 bool
1792
1793 config SYS_SUPPORTS_1000HZ
1794 bool
1795
1796 config SYS_SUPPORTS_1024HZ
1797 bool
1798
1799 config SYS_SUPPORTS_ARBIT_HZ
1800 bool
1801 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1802 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1803 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1804 !SYS_SUPPORTS_1024HZ
1805
1806 config HZ
1807 int
1808 default 48 if HZ_48
1809 default 100 if HZ_100
1810 default 128 if HZ_128
1811 default 250 if HZ_250
1812 default 256 if HZ_256
1813 default 1000 if HZ_1000
1814 default 1024 if HZ_1024
1815
1816 source "kernel/Kconfig.preempt"
1817
1818 config MIPS_INSANE_LARGE
1819 bool "Support for large 64-bit configurations"
1820 depends on CPU_R10000 && 64BIT
1821 help
1822 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1823 previous 64-bit processors which only supported 40 bit / 1TB. If you
1824 need processes of more than 1TB virtual address space, say Y here.
1825 This will result in additional memory usage, so it is not
1826 recommended for normal users.
1827
1828 config KEXEC
1829 bool "Kexec system call (EXPERIMENTAL)"
1830 depends on EXPERIMENTAL
1831 help
1832 kexec is a system call that implements the ability to shutdown your
1833 current kernel, and to start another kernel. It is like a reboot
1834 but it is independent of the system firmware. And like a reboot
1835 you can start any kernel with it, not just Linux.
1836
1837 The name comes from the similarity to the exec system call.
1838
1839 It is an ongoing process to be certain the hardware in a machine
1840 is properly shutdown, so do not be surprised if this code does not
1841 initially work for you. It may help to enable device hotplugging
1842 support. As of this writing the exact hardware interface is
1843 strongly in flux, so no good recommendation can be made.
1844
1845 config SECCOMP
1846 bool "Enable seccomp to safely compute untrusted bytecode"
1847 depends on PROC_FS
1848 default y
1849 help
1850 This kernel feature is useful for number crunching applications
1851 that may need to compute untrusted bytecode during their
1852 execution. By using pipes or other transports made available to
1853 the process as file descriptors supporting the read/write
1854 syscalls, it's possible to isolate those applications in
1855 their own address space using seccomp. Once seccomp is
1856 enabled via /proc/<pid>/seccomp, it cannot be disabled
1857 and the task is only allowed to execute a few safe syscalls
1858 defined by each seccomp mode.
1859
1860 If unsure, say Y. Only embedded should say N here.
1861
1862 endmenu
1863
1864 config RWSEM_GENERIC_SPINLOCK
1865 bool
1866 default y
1867
1868 config LOCKDEP_SUPPORT
1869 bool
1870 default y
1871
1872 config STACKTRACE_SUPPORT
1873 bool
1874 default y
1875
1876 source "init/Kconfig"
1877
1878 config PROBE_INITRD_HEADER
1879 bool "Probe initrd header created by addinitrd"
1880 depends on BLK_DEV_INITRD
1881 help
1882 Probe initrd header at the last page of kernel image.
1883 Say Y here if you are using arch/mips/boot/addinitrd.c to
1884 add initrd or initramfs image to the kernel image.
1885 Otherwise, say N.
1886
1887 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1888
1889 config HW_HAS_EISA
1890 bool
1891 config HW_HAS_PCI
1892 bool
1893
1894 config PCI
1895 bool "Support for PCI controller"
1896 depends on HW_HAS_PCI
1897 select PCI_DOMAINS
1898 help
1899 Find out whether you have a PCI motherboard. PCI is the name of a
1900 bus system, i.e. the way the CPU talks to the other stuff inside
1901 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1902 say Y, otherwise N.
1903
1904 config PCI_DOMAINS
1905 bool
1906
1907 source "drivers/pci/Kconfig"
1908
1909 #
1910 # ISA support is now enabled via select. Too many systems still have the one
1911 # or other ISA chip on the board that users don't know about so don't expect
1912 # users to choose the right thing ...
1913 #
1914 config ISA
1915 bool
1916
1917 config EISA
1918 bool "EISA support"
1919 depends on HW_HAS_EISA
1920 select ISA
1921 select GENERIC_ISA_DMA
1922 ---help---
1923 The Extended Industry Standard Architecture (EISA) bus was
1924 developed as an open alternative to the IBM MicroChannel bus.
1925
1926 The EISA bus provided some of the features of the IBM MicroChannel
1927 bus while maintaining backward compatibility with cards made for
1928 the older ISA bus. The EISA bus saw limited use between 1988 and
1929 1995 when it was made obsolete by the PCI bus.
1930
1931 Say Y here if you are building a kernel for an EISA-based machine.
1932
1933 Otherwise, say N.
1934
1935 source "drivers/eisa/Kconfig"
1936
1937 config TC
1938 bool "TURBOchannel support"
1939 depends on MACH_DECSTATION
1940 help
1941 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1942 processors. Documentation on writing device drivers for TurboChannel
1943 is available at:
1944 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1945
1946 #config ACCESSBUS
1947 # bool "Access.Bus support"
1948 # depends on TC
1949
1950 config MMU
1951 bool
1952 default y
1953
1954 config I8253
1955 bool
1956
1957 config ZONE_DMA32
1958 bool
1959
1960 source "drivers/pcmcia/Kconfig"
1961
1962 source "drivers/pci/hotplug/Kconfig"
1963
1964 endmenu
1965
1966 menu "Executable file formats"
1967
1968 source "fs/Kconfig.binfmt"
1969
1970 config TRAD_SIGNALS
1971 bool
1972
1973 config MIPS32_COMPAT
1974 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1975 depends on 64BIT
1976 help
1977 Select this option if you want Linux/MIPS 32-bit binary
1978 compatibility. Since all software available for Linux/MIPS is
1979 currently 32-bit you should say Y here.
1980
1981 config COMPAT
1982 bool
1983 depends on MIPS32_COMPAT
1984 default y
1985
1986 config SYSVIPC_COMPAT
1987 bool
1988 depends on COMPAT && SYSVIPC
1989 default y
1990
1991 config MIPS32_O32
1992 bool "Kernel support for o32 binaries"
1993 depends on MIPS32_COMPAT
1994 help
1995 Select this option if you want to run o32 binaries. These are pure
1996 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1997 existing binaries are in this format.
1998
1999 If unsure, say Y.
2000
2001 config MIPS32_N32
2002 bool "Kernel support for n32 binaries"
2003 depends on MIPS32_COMPAT
2004 help
2005 Select this option if you want to run n32 binaries. These are
2006 64-bit binaries using 32-bit quantities for addressing and certain
2007 data that would normally be 64-bit. They are used in special
2008 cases.
2009
2010 If unsure, say N.
2011
2012 config BINFMT_ELF32
2013 bool
2014 default y if MIPS32_O32 || MIPS32_N32
2015
2016 endmenu
2017
2018 menu "Power management options"
2019
2020 config ARCH_SUSPEND_POSSIBLE
2021 def_bool y
2022 depends on !SMP
2023
2024 source "kernel/power/Kconfig"
2025
2026 endmenu
2027
2028 source "net/Kconfig"
2029
2030 source "drivers/Kconfig"
2031
2032 source "fs/Kconfig"
2033
2034 source "arch/mips/Kconfig.debug"
2035
2036 source "security/Kconfig"
2037
2038 source "crypto/Kconfig"
2039
2040 source "lib/Kconfig"
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