mm: print out meminit for memmap
[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_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
62
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
81
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/>.
107
108 If you have one of the following DECstation Models you definitely
109 want to choose R4xx0 for the CPU Type:
110
111 DECstation 5000/50
112 DECstation 5000/150
113 DECstation 5000/260
114 DECsystem 5900/260
115
116 otherwise choose R3000.
117
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.
141
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
158
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
184
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.
221
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.
240
241 config MARKEINS
242 bool "NEC EMMA2RH Mark-eins"
243 select CEVT_R4K
244 select CSRC_R4K
245 select DMA_NONCOHERENT
246 select HW_HAS_PCI
247 select IRQ_CPU
248 select SWAP_IO_SPACE
249 select SYS_SUPPORTS_32BIT_KERNEL
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_LITTLE_ENDIAN
252 select SYS_HAS_CPU_R5000
253 help
254 This enables support for the R5432-based NEC Mark-eins
255 boards with R5500 CPU.
256
257 config MACH_VR41XX
258 bool "NEC VR4100 series based machines"
259 select CEVT_R4K
260 select CSRC_R4K
261 select SYS_HAS_CPU_VR41XX
262 select GENERIC_HARDIRQS_NO__DO_IRQ
263
264 config PNX8550_JBS
265 bool "NXP PNX8550 based JBS board"
266 select PNX8550
267 select SYS_SUPPORTS_LITTLE_ENDIAN
268
269 config PNX8550_STB810
270 bool "NXP PNX8550 based STB810 board"
271 select PNX8550
272 select SYS_SUPPORTS_LITTLE_ENDIAN
273
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.
293
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.
314
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_DS1286
331 select SGI_HAS_I8042
332 select SGI_HAS_INDYDOG
333 select SGI_HAS_HAL2
334 select SGI_HAS_SEEQ
335 select SGI_HAS_WD93
336 select SGI_HAS_ZILOG
337 select SWAP_IO_SPACE
338 select SYS_HAS_CPU_R4X00
339 select SYS_HAS_CPU_R5000
340 select SYS_HAS_EARLY_PRINTK
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL
343 select SYS_SUPPORTS_BIG_ENDIAN
344 help
345 This are the SGI Indy, Challenge S and Indigo2, as well as certain
346 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
347 that runs on these, say Y here.
348
349 config SGI_IP27
350 bool "SGI IP27 (Origin200/2000)"
351 select ARC
352 select ARC64
353 select BOOT_ELF64
354 select DEFAULT_SGI_PARTITION
355 select DMA_IP27
356 select SYS_HAS_EARLY_PRINTK
357 select HW_HAS_PCI
358 select NR_CPUS_DEFAULT_64
359 select SYS_HAS_CPU_R10000
360 select SYS_SUPPORTS_64BIT_KERNEL
361 select SYS_SUPPORTS_BIG_ENDIAN
362 select SYS_SUPPORTS_NUMA
363 select SYS_SUPPORTS_SMP
364 select GENERIC_HARDIRQS_NO__DO_IRQ
365 help
366 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
367 workstations. To compile a Linux kernel that runs on these, say Y
368 here.
369
370 config SGI_IP28
371 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
372 depends on EXPERIMENTAL
373 select ARC
374 select ARC64
375 select BOOT_ELF64
376 select CEVT_R4K
377 select CSRC_R4K
378 select DEFAULT_SGI_PARTITION
379 select DMA_NONCOHERENT
380 select GENERIC_ISA_DMA_SUPPORT_BROKEN
381 select IRQ_CPU
382 select HW_HAS_EISA
383 select I8253
384 select I8259
385 select SGI_HAS_DS1286
386 select SGI_HAS_I8042
387 select SGI_HAS_INDYDOG
388 select SGI_HAS_HAL2
389 select SGI_HAS_SEEQ
390 select SGI_HAS_WD93
391 select SGI_HAS_ZILOG
392 select SWAP_IO_SPACE
393 select SYS_HAS_CPU_R10000
394 select SYS_HAS_EARLY_PRINTK
395 select SYS_SUPPORTS_64BIT_KERNEL
396 select SYS_SUPPORTS_BIG_ENDIAN
397 help
398 This is the SGI Indigo2 with R10000 processor. To compile a Linux
399 kernel that runs on these, say Y here.
400
401 config SGI_IP32
402 bool "SGI IP32 (O2)"
403 select ARC
404 select ARC32
405 select BOOT_ELF32
406 select CEVT_R4K
407 select CSRC_R4K
408 select DMA_NONCOHERENT
409 select HW_HAS_PCI
410 select IRQ_CPU
411 select R5000_CPU_SCACHE
412 select RM7000_CPU_SCACHE
413 select SYS_HAS_CPU_R5000
414 select SYS_HAS_CPU_R10000 if BROKEN
415 select SYS_HAS_CPU_RM7000
416 select SYS_HAS_CPU_NEVADA
417 select SYS_SUPPORTS_64BIT_KERNEL
418 select SYS_SUPPORTS_BIG_ENDIAN
419 help
420 If you want this kernel to run on SGI O2 workstation, say Y here.
421
422 config SIBYTE_CRHINE
423 bool "Sibyte BCM91120C-CRhine"
424 depends on EXPERIMENTAL
425 select BOOT_ELF32
426 select DMA_COHERENT
427 select SIBYTE_BCM1120
428 select SWAP_IO_SPACE
429 select SYS_HAS_CPU_SB1
430 select SYS_SUPPORTS_BIG_ENDIAN
431 select SYS_SUPPORTS_LITTLE_ENDIAN
432
433 config SIBYTE_CARMEL
434 bool "Sibyte BCM91120x-Carmel"
435 depends on EXPERIMENTAL
436 select BOOT_ELF32
437 select DMA_COHERENT
438 select SIBYTE_BCM1120
439 select SWAP_IO_SPACE
440 select SYS_HAS_CPU_SB1
441 select SYS_SUPPORTS_BIG_ENDIAN
442 select SYS_SUPPORTS_LITTLE_ENDIAN
443
444 config SIBYTE_CRHONE
445 bool "Sibyte BCM91125C-CRhone"
446 depends on EXPERIMENTAL
447 select BOOT_ELF32
448 select DMA_COHERENT
449 select SIBYTE_BCM1125
450 select SWAP_IO_SPACE
451 select SYS_HAS_CPU_SB1
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_HIGHMEM
454 select SYS_SUPPORTS_LITTLE_ENDIAN
455
456 config SIBYTE_RHONE
457 bool "Sibyte BCM91125E-Rhone"
458 depends on EXPERIMENTAL
459 select BOOT_ELF32
460 select DMA_COHERENT
461 select SIBYTE_BCM1125H
462 select SWAP_IO_SPACE
463 select SYS_HAS_CPU_SB1
464 select SYS_SUPPORTS_BIG_ENDIAN
465 select SYS_SUPPORTS_LITTLE_ENDIAN
466
467 config SIBYTE_SWARM
468 bool "Sibyte BCM91250A-SWARM"
469 select BOOT_ELF32
470 select DMA_COHERENT
471 select NR_CPUS_DEFAULT_2
472 select SIBYTE_SB1250
473 select SWAP_IO_SPACE
474 select SYS_HAS_CPU_SB1
475 select SYS_SUPPORTS_BIG_ENDIAN
476 select SYS_SUPPORTS_HIGHMEM
477 select SYS_SUPPORTS_LITTLE_ENDIAN
478 select ZONE_DMA32 if 64BIT
479
480 config SIBYTE_LITTLESUR
481 bool "Sibyte BCM91250C2-LittleSur"
482 depends on EXPERIMENTAL
483 select BOOT_ELF32
484 select DMA_COHERENT
485 select NR_CPUS_DEFAULT_2
486 select SIBYTE_SB1250
487 select SWAP_IO_SPACE
488 select SYS_HAS_CPU_SB1
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select SYS_SUPPORTS_HIGHMEM
491 select SYS_SUPPORTS_LITTLE_ENDIAN
492
493 config SIBYTE_SENTOSA
494 bool "Sibyte BCM91250E-Sentosa"
495 depends on EXPERIMENTAL
496 select BOOT_ELF32
497 select DMA_COHERENT
498 select NR_CPUS_DEFAULT_2
499 select SIBYTE_SB1250
500 select SWAP_IO_SPACE
501 select SYS_HAS_CPU_SB1
502 select SYS_SUPPORTS_BIG_ENDIAN
503 select SYS_SUPPORTS_LITTLE_ENDIAN
504
505 config SIBYTE_BIGSUR
506 bool "Sibyte BCM91480B-BigSur"
507 select BOOT_ELF32
508 select DMA_COHERENT
509 select NR_CPUS_DEFAULT_4
510 select SIBYTE_BCM1x80
511 select SWAP_IO_SPACE
512 select SYS_HAS_CPU_SB1
513 select SYS_SUPPORTS_BIG_ENDIAN
514 select SYS_SUPPORTS_HIGHMEM
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select ZONE_DMA32 if 64BIT
517
518 config SNI_RM
519 bool "SNI RM200/300/400"
520 select ARC if CPU_LITTLE_ENDIAN
521 select ARC32 if CPU_LITTLE_ENDIAN
522 select SNIPROM if CPU_BIG_ENDIAN
523 select ARCH_MAY_HAVE_PC_FDC
524 select BOOT_ELF32
525 select CEVT_R4K
526 select CSRC_R4K
527 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
528 select DMA_NONCOHERENT
529 select GENERIC_ISA_DMA
530 select HW_HAS_EISA
531 select HW_HAS_PCI
532 select IRQ_CPU
533 select I8253
534 select I8259
535 select ISA
536 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
537 select SYS_HAS_CPU_R4X00
538 select SYS_HAS_CPU_R5000
539 select SYS_HAS_CPU_R10000
540 select R5000_CPU_SCACHE
541 select SYS_HAS_EARLY_PRINTK
542 select SYS_SUPPORTS_32BIT_KERNEL
543 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_HIGHMEM
546 select SYS_SUPPORTS_LITTLE_ENDIAN
547 help
548 The SNI RM200/300/400 are MIPS-based machines manufactured by
549 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
550 Technology and now in turn merged with Fujitsu. Say Y here to
551 support this machine type.
552
553 config MACH_TX39XX
554 bool "Toshiba TX39 series based machines"
555
556 config MACH_TX49XX
557 bool "Toshiba TX49 series based machines"
558
559 config MIKROTIK_RB532
560 bool "Mikrotik RB532 boards"
561 select CEVT_R4K
562 select CSRC_R4K
563 select DMA_NONCOHERENT
564 select GENERIC_HARDIRQS_NO__DO_IRQ
565 select HW_HAS_PCI
566 select IRQ_CPU
567 select SYS_HAS_CPU_MIPS32_R1
568 select SYS_SUPPORTS_32BIT_KERNEL
569 select SYS_SUPPORTS_LITTLE_ENDIAN
570 select SWAP_IO_SPACE
571 select BOOT_RAW
572 select ARCH_REQUIRE_GPIOLIB
573 help
574 Support the Mikrotik(tm) RouterBoard 532 series,
575 based on the IDT RC32434 SoC.
576
577 config WR_PPMC
578 bool "Wind River PPMC board"
579 select CEVT_R4K
580 select CSRC_R4K
581 select IRQ_CPU
582 select BOOT_ELF32
583 select DMA_NONCOHERENT
584 select HW_HAS_PCI
585 select PCI_GT64XXX_PCI0
586 select SWAP_IO_SPACE
587 select SYS_HAS_CPU_MIPS32_R1
588 select SYS_HAS_CPU_MIPS32_R2
589 select SYS_HAS_CPU_MIPS64_R1
590 select SYS_HAS_CPU_NEVADA
591 select SYS_HAS_CPU_RM7000
592 select SYS_SUPPORTS_32BIT_KERNEL
593 select SYS_SUPPORTS_64BIT_KERNEL
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
596 help
597 This enables support for the Wind River MIPS32 4KC PPMC evaluation
598 board, which is based on GT64120 bridge chip.
599
600 endchoice
601
602 source "arch/mips/alchemy/Kconfig"
603 source "arch/mips/basler/excite/Kconfig"
604 source "arch/mips/jazz/Kconfig"
605 source "arch/mips/lasat/Kconfig"
606 source "arch/mips/pmc-sierra/Kconfig"
607 source "arch/mips/sgi-ip27/Kconfig"
608 source "arch/mips/sibyte/Kconfig"
609 source "arch/mips/txx9/Kconfig"
610 source "arch/mips/vr41xx/Kconfig"
611
612 endmenu
613
614 config RWSEM_GENERIC_SPINLOCK
615 bool
616 default y
617
618 config RWSEM_XCHGADD_ALGORITHM
619 bool
620
621 config ARCH_HAS_ILOG2_U32
622 bool
623 default n
624
625 config ARCH_HAS_ILOG2_U64
626 bool
627 default n
628
629 config ARCH_SUPPORTS_OPROFILE
630 bool
631 default y if !MIPS_MT_SMTC
632
633 config GENERIC_FIND_NEXT_BIT
634 bool
635 default y
636
637 config GENERIC_HWEIGHT
638 bool
639 default y
640
641 config GENERIC_CALIBRATE_DELAY
642 bool
643 default y
644
645 config GENERIC_CLOCKEVENTS
646 bool
647 default y
648
649 config GENERIC_TIME
650 bool
651 default y
652
653 config GENERIC_CMOS_UPDATE
654 bool
655 default y
656
657 config SCHED_NO_NO_OMIT_FRAME_POINTER
658 bool
659 default y
660
661 config GENERIC_HARDIRQS_NO__DO_IRQ
662 bool
663 default n
664
665 #
666 # Select some configuration options automatically based on user selections.
667 #
668 config ARC
669 bool
670
671 config ARCH_MAY_HAVE_PC_FDC
672 bool
673
674 config BOOT_RAW
675 bool
676
677 config CEVT_BCM1480
678 bool
679
680 config CEVT_DS1287
681 bool
682
683 config CEVT_GT641XX
684 bool
685
686 config CEVT_R4K
687 bool
688
689 config CEVT_SB1250
690 bool
691
692 config CEVT_TXX9
693 bool
694
695 config CSRC_BCM1480
696 bool
697
698 config CSRC_IOASIC
699 bool
700
701 config CSRC_R4K
702 bool
703
704 config CSRC_SB1250
705 bool
706
707 config GPIO_TXX9
708 select GENERIC_GPIO
709 select ARCH_REQUIRE_GPIOLIB
710 bool
711
712 config CFE
713 bool
714
715 config DMA_COHERENT
716 bool
717
718 config DMA_IP27
719 bool
720
721 config DMA_NONCOHERENT
722 bool
723 select DMA_NEED_PCI_MAP_STATE
724
725 config DMA_NEED_PCI_MAP_STATE
726 bool
727
728 config EARLY_PRINTK
729 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
730 depends on SYS_HAS_EARLY_PRINTK
731 default y
732 help
733 This option enables special console drivers which allow the kernel
734 to print messages very early in the bootup process.
735
736 This is useful for kernel debugging when your machine crashes very
737 early before the console code is initialized. For normal operation,
738 it is not recommended because it looks ugly on some machines and
739 doesn't cooperate with an X server. You should normally say N here,
740 unless you want to debug such a crash.
741
742 config SYS_HAS_EARLY_PRINTK
743 bool
744
745 config HOTPLUG_CPU
746 bool
747 default n
748
749 config I8259
750 bool
751
752 config MIPS_BONITO64
753 bool
754
755 config MIPS_MSC
756 bool
757
758 config MIPS_NILE4
759 bool
760
761 config MIPS_DISABLE_OBSOLETE_IDE
762 bool
763
764 config SYNC_R4K
765 bool
766
767 config NO_IOPORT
768 def_bool n
769
770 config GENERIC_ISA_DMA
771 bool
772 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
773
774 config GENERIC_ISA_DMA_SUPPORT_BROKEN
775 bool
776 select GENERIC_ISA_DMA
777
778 config GENERIC_GPIO
779 bool
780
781 #
782 # Endianess selection. Sufficiently obscure so many users don't know what to
783 # answer,so we try hard to limit the available choices. Also the use of a
784 # choice statement should be more obvious to the user.
785 #
786 choice
787 prompt "Endianess selection"
788 help
789 Some MIPS machines can be configured for either little or big endian
790 byte order. These modes require different kernels and a different
791 Linux distribution. In general there is one preferred byteorder for a
792 particular system but some systems are just as commonly used in the
793 one or the other endianness.
794
795 config CPU_BIG_ENDIAN
796 bool "Big endian"
797 depends on SYS_SUPPORTS_BIG_ENDIAN
798
799 config CPU_LITTLE_ENDIAN
800 bool "Little endian"
801 depends on SYS_SUPPORTS_LITTLE_ENDIAN
802 help
803
804 endchoice
805
806 config SYS_SUPPORTS_APM_EMULATION
807 bool
808
809 config SYS_SUPPORTS_BIG_ENDIAN
810 bool
811
812 config SYS_SUPPORTS_LITTLE_ENDIAN
813 bool
814
815 config IRQ_CPU
816 bool
817
818 config IRQ_CPU_RM7K
819 bool
820
821 config IRQ_CPU_RM9K
822 bool
823
824 config IRQ_MSP_SLP
825 bool
826
827 config IRQ_MSP_CIC
828 bool
829
830 config IRQ_TXX9
831 bool
832
833 config IRQ_GT641XX
834 bool
835
836 config IRQ_GIC
837 bool
838
839 config MIPS_BOARDS_GEN
840 bool
841
842 config PCI_GT64XXX_PCI0
843 bool
844
845 config NO_EXCEPT_FILL
846 bool
847
848 config MIPS_RM9122
849 bool
850 select SERIAL_RM9000
851
852 config PNX8550
853 bool
854 select SOC_PNX8550
855
856 config SOC_PNX8550
857 bool
858 select DMA_NONCOHERENT
859 select HW_HAS_PCI
860 select SYS_HAS_CPU_MIPS32_R1
861 select SYS_HAS_EARLY_PRINTK
862 select SYS_SUPPORTS_32BIT_KERNEL
863 select GENERIC_HARDIRQS_NO__DO_IRQ
864 select GENERIC_GPIO
865
866 config SWAP_IO_SPACE
867 bool
868
869 config EMMA2RH
870 bool
871 depends on MARKEINS
872 default y
873
874 config SERIAL_RM9000
875 bool
876
877 config SGI_HAS_DS1286
878 bool
879
880 config SGI_HAS_INDYDOG
881 bool
882
883 config SGI_HAS_HAL2
884 bool
885
886 config SGI_HAS_SEEQ
887 bool
888
889 config SGI_HAS_WD93
890 bool
891
892 config SGI_HAS_ZILOG
893 bool
894
895 config SGI_HAS_I8042
896 bool
897
898 config DEFAULT_SGI_PARTITION
899 bool
900
901 config ARC32
902 bool
903
904 config SNIPROM
905 bool
906
907 config BOOT_ELF32
908 bool
909
910 config MIPS_L1_CACHE_SHIFT
911 int
912 default "4" if MACH_DECSTATION || MIKROTIK_RB532
913 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM
914 default "4" if PMC_MSP4200_EVAL
915 default "5"
916
917 config HAVE_STD_PC_SERIAL_PORT
918 bool
919
920 config ARC_CONSOLE
921 bool "ARC console support"
922 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
923
924 config ARC_MEMORY
925 bool
926 depends on MACH_JAZZ || SNI_RM || SGI_IP32
927 default y
928
929 config ARC_PROMLIB
930 bool
931 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
932 default y
933
934 config ARC64
935 bool
936
937 config BOOT_ELF64
938 bool
939
940 menu "CPU selection"
941
942 choice
943 prompt "CPU type"
944 default CPU_R4X00
945
946 config CPU_LOONGSON2
947 bool "Loongson 2"
948 depends on SYS_HAS_CPU_LOONGSON2
949 select CPU_SUPPORTS_32BIT_KERNEL
950 select CPU_SUPPORTS_64BIT_KERNEL
951 select CPU_SUPPORTS_HIGHMEM
952 help
953 The Loongson 2E processor implements the MIPS III instruction set
954 with many extensions.
955
956 config CPU_MIPS32_R1
957 bool "MIPS32 Release 1"
958 depends on SYS_HAS_CPU_MIPS32_R1
959 select CPU_HAS_LLSC
960 select CPU_HAS_PREFETCH
961 select CPU_SUPPORTS_32BIT_KERNEL
962 select CPU_SUPPORTS_HIGHMEM
963 help
964 Choose this option to build a kernel for release 1 or later of the
965 MIPS32 architecture. Most modern embedded systems with a 32-bit
966 MIPS processor are based on a MIPS32 processor. If you know the
967 specific type of processor in your system, choose those that one
968 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
969 Release 2 of the MIPS32 architecture is available since several
970 years so chances are you even have a MIPS32 Release 2 processor
971 in which case you should choose CPU_MIPS32_R2 instead for better
972 performance.
973
974 config CPU_MIPS32_R2
975 bool "MIPS32 Release 2"
976 depends on SYS_HAS_CPU_MIPS32_R2
977 select CPU_HAS_LLSC
978 select CPU_HAS_PREFETCH
979 select CPU_SUPPORTS_32BIT_KERNEL
980 select CPU_SUPPORTS_HIGHMEM
981 help
982 Choose this option to build a kernel for release 2 or later of the
983 MIPS32 architecture. Most modern embedded systems with a 32-bit
984 MIPS processor are based on a MIPS32 processor. If you know the
985 specific type of processor in your system, choose those that one
986 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
987
988 config CPU_MIPS64_R1
989 bool "MIPS64 Release 1"
990 depends on SYS_HAS_CPU_MIPS64_R1
991 select CPU_HAS_LLSC
992 select CPU_HAS_PREFETCH
993 select CPU_SUPPORTS_32BIT_KERNEL
994 select CPU_SUPPORTS_64BIT_KERNEL
995 select CPU_SUPPORTS_HIGHMEM
996 help
997 Choose this option to build a kernel for release 1 or later of the
998 MIPS64 architecture. Many modern embedded systems with a 64-bit
999 MIPS processor are based on a MIPS64 processor. If you know the
1000 specific type of processor in your system, choose those that one
1001 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1002 Release 2 of the MIPS64 architecture is available since several
1003 years so chances are you even have a MIPS64 Release 2 processor
1004 in which case you should choose CPU_MIPS64_R2 instead for better
1005 performance.
1006
1007 config CPU_MIPS64_R2
1008 bool "MIPS64 Release 2"
1009 depends on SYS_HAS_CPU_MIPS64_R2
1010 select CPU_HAS_LLSC
1011 select CPU_HAS_PREFETCH
1012 select CPU_SUPPORTS_32BIT_KERNEL
1013 select CPU_SUPPORTS_64BIT_KERNEL
1014 select CPU_SUPPORTS_HIGHMEM
1015 help
1016 Choose this option to build a kernel for release 2 or later of the
1017 MIPS64 architecture. Many modern embedded systems with a 64-bit
1018 MIPS processor are based on a MIPS64 processor. If you know the
1019 specific type of processor in your system, choose those that one
1020 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1021
1022 config CPU_R3000
1023 bool "R3000"
1024 depends on SYS_HAS_CPU_R3000
1025 select CPU_HAS_WB
1026 select CPU_SUPPORTS_32BIT_KERNEL
1027 select CPU_SUPPORTS_HIGHMEM
1028 help
1029 Please make sure to pick the right CPU type. Linux/MIPS is not
1030 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1031 *not* work on R4000 machines and vice versa. However, since most
1032 of the supported machines have an R4000 (or similar) CPU, R4x00
1033 might be a safe bet. If the resulting kernel does not work,
1034 try to recompile with R3000.
1035
1036 config CPU_TX39XX
1037 bool "R39XX"
1038 depends on SYS_HAS_CPU_TX39XX
1039 select CPU_SUPPORTS_32BIT_KERNEL
1040
1041 config CPU_VR41XX
1042 bool "R41xx"
1043 depends on SYS_HAS_CPU_VR41XX
1044 select CPU_SUPPORTS_32BIT_KERNEL
1045 select CPU_SUPPORTS_64BIT_KERNEL
1046 help
1047 The options selects support for the NEC VR4100 series of processors.
1048 Only choose this option if you have one of these processors as a
1049 kernel built with this option will not run on any other type of
1050 processor or vice versa.
1051
1052 config CPU_R4300
1053 bool "R4300"
1054 depends on SYS_HAS_CPU_R4300
1055 select CPU_HAS_LLSC
1056 select CPU_SUPPORTS_32BIT_KERNEL
1057 select CPU_SUPPORTS_64BIT_KERNEL
1058 help
1059 MIPS Technologies R4300-series processors.
1060
1061 config CPU_R4X00
1062 bool "R4x00"
1063 depends on SYS_HAS_CPU_R4X00
1064 select CPU_HAS_LLSC
1065 select CPU_SUPPORTS_32BIT_KERNEL
1066 select CPU_SUPPORTS_64BIT_KERNEL
1067 help
1068 MIPS Technologies R4000-series processors other than 4300, including
1069 the R4000, R4400, R4600, and 4700.
1070
1071 config CPU_TX49XX
1072 bool "R49XX"
1073 depends on SYS_HAS_CPU_TX49XX
1074 select CPU_HAS_LLSC
1075 select CPU_HAS_PREFETCH
1076 select CPU_SUPPORTS_32BIT_KERNEL
1077 select CPU_SUPPORTS_64BIT_KERNEL
1078
1079 config CPU_R5000
1080 bool "R5000"
1081 depends on SYS_HAS_CPU_R5000
1082 select CPU_HAS_LLSC
1083 select CPU_SUPPORTS_32BIT_KERNEL
1084 select CPU_SUPPORTS_64BIT_KERNEL
1085 help
1086 MIPS Technologies R5000-series processors other than the Nevada.
1087
1088 config CPU_R5432
1089 bool "R5432"
1090 depends on SYS_HAS_CPU_R5432
1091 select CPU_HAS_LLSC
1092 select CPU_SUPPORTS_32BIT_KERNEL
1093 select CPU_SUPPORTS_64BIT_KERNEL
1094
1095 config CPU_R6000
1096 bool "R6000"
1097 depends on EXPERIMENTAL
1098 select CPU_HAS_LLSC
1099 depends on SYS_HAS_CPU_R6000
1100 select CPU_SUPPORTS_32BIT_KERNEL
1101 help
1102 MIPS Technologies R6000 and R6000A series processors. Note these
1103 processors are extremely rare and the support for them is incomplete.
1104
1105 config CPU_NEVADA
1106 bool "RM52xx"
1107 depends on SYS_HAS_CPU_NEVADA
1108 select CPU_HAS_LLSC
1109 select CPU_SUPPORTS_32BIT_KERNEL
1110 select CPU_SUPPORTS_64BIT_KERNEL
1111 help
1112 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1113
1114 config CPU_R8000
1115 bool "R8000"
1116 depends on EXPERIMENTAL
1117 depends on SYS_HAS_CPU_R8000
1118 select CPU_HAS_LLSC
1119 select CPU_HAS_PREFETCH
1120 select CPU_SUPPORTS_64BIT_KERNEL
1121 help
1122 MIPS Technologies R8000 processors. Note these processors are
1123 uncommon and the support for them is incomplete.
1124
1125 config CPU_R10000
1126 bool "R10000"
1127 depends on SYS_HAS_CPU_R10000
1128 select CPU_HAS_LLSC
1129 select CPU_HAS_PREFETCH
1130 select CPU_SUPPORTS_32BIT_KERNEL
1131 select CPU_SUPPORTS_64BIT_KERNEL
1132 select CPU_SUPPORTS_HIGHMEM
1133 help
1134 MIPS Technologies R10000-series processors.
1135
1136 config CPU_RM7000
1137 bool "RM7000"
1138 depends on SYS_HAS_CPU_RM7000
1139 select CPU_HAS_LLSC
1140 select CPU_HAS_PREFETCH
1141 select CPU_SUPPORTS_32BIT_KERNEL
1142 select CPU_SUPPORTS_64BIT_KERNEL
1143 select CPU_SUPPORTS_HIGHMEM
1144
1145 config CPU_RM9000
1146 bool "RM9000"
1147 depends on SYS_HAS_CPU_RM9000
1148 select CPU_HAS_LLSC
1149 select CPU_HAS_PREFETCH
1150 select CPU_SUPPORTS_32BIT_KERNEL
1151 select CPU_SUPPORTS_64BIT_KERNEL
1152 select CPU_SUPPORTS_HIGHMEM
1153 select WEAK_ORDERING
1154
1155 config CPU_SB1
1156 bool "SB1"
1157 depends on SYS_HAS_CPU_SB1
1158 select CPU_HAS_LLSC
1159 select CPU_SUPPORTS_32BIT_KERNEL
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1162 select WEAK_ORDERING
1163
1164 endchoice
1165
1166 config SYS_HAS_CPU_LOONGSON2
1167 bool
1168
1169 config SYS_HAS_CPU_MIPS32_R1
1170 bool
1171
1172 config SYS_HAS_CPU_MIPS32_R2
1173 bool
1174
1175 config SYS_HAS_CPU_MIPS64_R1
1176 bool
1177
1178 config SYS_HAS_CPU_MIPS64_R2
1179 bool
1180
1181 config SYS_HAS_CPU_R3000
1182 bool
1183
1184 config SYS_HAS_CPU_TX39XX
1185 bool
1186
1187 config SYS_HAS_CPU_VR41XX
1188 bool
1189
1190 config SYS_HAS_CPU_R4300
1191 bool
1192
1193 config SYS_HAS_CPU_R4X00
1194 bool
1195
1196 config SYS_HAS_CPU_TX49XX
1197 bool
1198
1199 config SYS_HAS_CPU_R5000
1200 bool
1201
1202 config SYS_HAS_CPU_R5432
1203 bool
1204
1205 config SYS_HAS_CPU_R6000
1206 bool
1207
1208 config SYS_HAS_CPU_NEVADA
1209 bool
1210
1211 config SYS_HAS_CPU_R8000
1212 bool
1213
1214 config SYS_HAS_CPU_R10000
1215 bool
1216
1217 config SYS_HAS_CPU_RM7000
1218 bool
1219
1220 config SYS_HAS_CPU_RM9000
1221 bool
1222
1223 config SYS_HAS_CPU_SB1
1224 bool
1225
1226 #
1227 # CPU may reorder R->R, R->W, W->R, W->W
1228 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1229 #
1230 config WEAK_ORDERING
1231 bool
1232
1233 #
1234 # CPU may reorder reads and writes beyond LL/SC
1235 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1236 #
1237 config WEAK_REORDERING_BEYOND_LLSC
1238 bool
1239 endmenu
1240
1241 #
1242 # These two indicate any level of the MIPS32 and MIPS64 architecture
1243 #
1244 config CPU_MIPS32
1245 bool
1246 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1247
1248 config CPU_MIPS64
1249 bool
1250 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1251
1252 #
1253 # These two indicate the revision of the architecture, either Release 1 or Release 2
1254 #
1255 config CPU_MIPSR1
1256 bool
1257 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1258
1259 config CPU_MIPSR2
1260 bool
1261 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2
1262
1263 config SYS_SUPPORTS_32BIT_KERNEL
1264 bool
1265 config SYS_SUPPORTS_64BIT_KERNEL
1266 bool
1267 config CPU_SUPPORTS_32BIT_KERNEL
1268 bool
1269 config CPU_SUPPORTS_64BIT_KERNEL
1270 bool
1271
1272 #
1273 # Set to y for ptrace access to watch registers.
1274 #
1275 config HARDWARE_WATCHPOINTS
1276 bool
1277 default y if CPU_MIPS32 || CPU_MIPS64
1278
1279 menu "Kernel type"
1280
1281 choice
1282
1283 prompt "Kernel code model"
1284 help
1285 You should only select this option if you have a workload that
1286 actually benefits from 64-bit processing or if your machine has
1287 large memory. You will only be presented a single option in this
1288 menu if your system does not support both 32-bit and 64-bit kernels.
1289
1290 config 32BIT
1291 bool "32-bit kernel"
1292 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1293 select TRAD_SIGNALS
1294 help
1295 Select this option if you want to build a 32-bit kernel.
1296 config 64BIT
1297 bool "64-bit kernel"
1298 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1299 help
1300 Select this option if you want to build a 64-bit kernel.
1301
1302 endchoice
1303
1304 choice
1305 prompt "Kernel page size"
1306 default PAGE_SIZE_4KB
1307
1308 config PAGE_SIZE_4KB
1309 bool "4kB"
1310 help
1311 This option select the standard 4kB Linux page size. On some
1312 R3000-family processors this is the only available page size. Using
1313 4kB page size will minimize memory consumption and is therefore
1314 recommended for low memory systems.
1315
1316 config PAGE_SIZE_8KB
1317 bool "8kB"
1318 depends on EXPERIMENTAL && CPU_R8000
1319 help
1320 Using 8kB page size will result in higher performance kernel at
1321 the price of higher memory consumption. This option is available
1322 only on the R8000 processor. Not that at the time of this writing
1323 this option is still high experimental; there are also issues with
1324 compatibility of user applications.
1325
1326 config PAGE_SIZE_16KB
1327 bool "16kB"
1328 depends on !CPU_R3000 && !CPU_TX39XX
1329 help
1330 Using 16kB page size will result in higher performance kernel at
1331 the price of higher memory consumption. This option is available on
1332 all non-R3000 family processors. Note that you will need a suitable
1333 Linux distribution to support this.
1334
1335 config PAGE_SIZE_64KB
1336 bool "64kB"
1337 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1338 help
1339 Using 64kB page size will result in higher performance kernel at
1340 the price of higher memory consumption. This option is available on
1341 all non-R3000 family processor. Not that at the time of this
1342 writing this option is still high experimental.
1343
1344 endchoice
1345
1346 config BOARD_SCACHE
1347 bool
1348
1349 config IP22_CPU_SCACHE
1350 bool
1351 select BOARD_SCACHE
1352
1353 #
1354 # Support for a MIPS32 / MIPS64 style S-caches
1355 #
1356 config MIPS_CPU_SCACHE
1357 bool
1358 select BOARD_SCACHE
1359
1360 config R5000_CPU_SCACHE
1361 bool
1362 select BOARD_SCACHE
1363
1364 config RM7000_CPU_SCACHE
1365 bool
1366 select BOARD_SCACHE
1367
1368 config SIBYTE_DMA_PAGEOPS
1369 bool "Use DMA to clear/copy pages"
1370 depends on CPU_SB1
1371 help
1372 Instead of using the CPU to zero and copy pages, use a Data Mover
1373 channel. These DMA channels are otherwise unused by the standard
1374 SiByte Linux port. Seems to give a small performance benefit.
1375
1376 config CPU_HAS_PREFETCH
1377 bool
1378
1379 choice
1380 prompt "MIPS MT options"
1381
1382 config MIPS_MT_DISABLED
1383 bool "Disable multithreading support."
1384 help
1385 Use this option if your workload can't take advantage of
1386 MIPS hardware multithreading support. On systems that don't have
1387 the option of an MT-enabled processor this option will be the only
1388 option in this menu.
1389
1390 config MIPS_MT_SMP
1391 bool "Use 1 TC on each available VPE for SMP"
1392 depends on SYS_SUPPORTS_MULTITHREADING
1393 select CPU_MIPSR2_IRQ_VI
1394 select CPU_MIPSR2_IRQ_EI
1395 select MIPS_MT
1396 select NR_CPUS_DEFAULT_2
1397 select SMP
1398 select SYS_SUPPORTS_SCHED_SMT if SMP
1399 select SYS_SUPPORTS_SMP
1400 select SMP_UP
1401 help
1402 This is a kernel model which is also known a VSMP or lately
1403 has been marketesed into SMVP.
1404
1405 config MIPS_MT_SMTC
1406 bool "SMTC: Use all TCs on all VPEs for SMP"
1407 depends on CPU_MIPS32_R2
1408 #depends on CPU_MIPS64_R2 # once there is hardware ...
1409 depends on SYS_SUPPORTS_MULTITHREADING
1410 select CPU_MIPSR2_IRQ_VI
1411 select CPU_MIPSR2_IRQ_EI
1412 select MIPS_MT
1413 select NR_CPUS_DEFAULT_8
1414 select SMP
1415 select SYS_SUPPORTS_SMP
1416 select SMP_UP
1417 help
1418 This is a kernel model which is known a SMTC or lately has been
1419 marketesed into SMVP.
1420
1421 endchoice
1422
1423 config MIPS_MT
1424 bool
1425
1426 config SCHED_SMT
1427 bool "SMT (multithreading) scheduler support"
1428 depends on SYS_SUPPORTS_SCHED_SMT
1429 default n
1430 help
1431 SMT scheduler support improves the CPU scheduler's decision making
1432 when dealing with MIPS MT enabled cores at a cost of slightly
1433 increased overhead in some places. If unsure say N here.
1434
1435 config SYS_SUPPORTS_SCHED_SMT
1436 bool
1437
1438
1439 config SYS_SUPPORTS_MULTITHREADING
1440 bool
1441
1442 config MIPS_MT_FPAFF
1443 bool "Dynamic FPU affinity for FP-intensive threads"
1444 default y
1445 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1446
1447 config MIPS_VPE_LOADER
1448 bool "VPE loader support."
1449 depends on SYS_SUPPORTS_MULTITHREADING
1450 select CPU_MIPSR2_IRQ_VI
1451 select CPU_MIPSR2_IRQ_EI
1452 select MIPS_MT
1453 help
1454 Includes a loader for loading an elf relocatable object
1455 onto another VPE and running it.
1456
1457 config MIPS_MT_SMTC_IM_BACKSTOP
1458 bool "Use per-TC register bits as backstop for inhibited IM bits"
1459 depends on MIPS_MT_SMTC
1460 default n
1461 help
1462 To support multiple TC microthreads acting as "CPUs" within
1463 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1464 during interrupt handling. To support legacy drivers and interrupt
1465 controller management code, SMTC has a "backstop" to track and
1466 if necessary restore the interrupt mask. This has some performance
1467 impact on interrupt service overhead.
1468
1469 config MIPS_MT_SMTC_IRQAFF
1470 bool "Support IRQ affinity API"
1471 depends on MIPS_MT_SMTC
1472 default n
1473 help
1474 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1475 for SMTC Linux kernel. Requires platform support, of which
1476 an example can be found in the MIPS kernel i8259 and Malta
1477 platform code. Adds some overhead to interrupt dispatch, and
1478 should be used only if you know what you are doing.
1479
1480 config MIPS_VPE_LOADER_TOM
1481 bool "Load VPE program into memory hidden from linux"
1482 depends on MIPS_VPE_LOADER
1483 default y
1484 help
1485 The loader can use memory that is present but has been hidden from
1486 Linux using the kernel command line option "mem=xxMB". It's up to
1487 you to ensure the amount you put in the option and the space your
1488 program requires is less or equal to the amount physically present.
1489
1490 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1491 config MIPS_VPE_APSP_API
1492 bool "Enable support for AP/SP API (RTLX)"
1493 depends on MIPS_VPE_LOADER
1494 help
1495
1496 config MIPS_APSP_KSPD
1497 bool "Enable KSPD"
1498 depends on MIPS_VPE_APSP_API
1499 default y
1500 help
1501 KSPD is a kernel daemon that accepts syscall requests from the SP
1502 side, actions them and returns the results. It also handles the
1503 "exit" syscall notifying other kernel modules the SP program is
1504 exiting. You probably want to say yes here.
1505
1506 config MIPS_CMP
1507 bool "MIPS CMP framework support"
1508 depends on SYS_SUPPORTS_MIPS_CMP
1509 select SYNC_R4K if BROKEN
1510 select SYS_SUPPORTS_SMP
1511 select SYS_SUPPORTS_SCHED_SMT if SMP
1512 select WEAK_ORDERING
1513 default n
1514 help
1515 This is a placeholder option for the GCMP work. It will need to
1516 be handled differently...
1517
1518 config SB1_PASS_1_WORKAROUNDS
1519 bool
1520 depends on CPU_SB1_PASS_1
1521 default y
1522
1523 config SB1_PASS_2_WORKAROUNDS
1524 bool
1525 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1526 default y
1527
1528 config SB1_PASS_2_1_WORKAROUNDS
1529 bool
1530 depends on CPU_SB1 && CPU_SB1_PASS_2
1531 default y
1532
1533 config 64BIT_PHYS_ADDR
1534 bool
1535
1536 config CPU_HAS_LLSC
1537 bool
1538
1539 config CPU_HAS_SMARTMIPS
1540 depends on SYS_SUPPORTS_SMARTMIPS
1541 bool "Support for the SmartMIPS ASE"
1542 help
1543 SmartMIPS is a extension of the MIPS32 architecture aimed at
1544 increased security at both hardware and software level for
1545 smartcards. Enabling this option will allow proper use of the
1546 SmartMIPS instructions by Linux applications. However a kernel with
1547 this option will not work on a MIPS core without SmartMIPS core. If
1548 you don't know you probably don't have SmartMIPS and should say N
1549 here.
1550
1551 config CPU_HAS_WB
1552 bool
1553
1554 #
1555 # Vectored interrupt mode is an R2 feature
1556 #
1557 config CPU_MIPSR2_IRQ_VI
1558 bool
1559
1560 #
1561 # Extended interrupt mode is an R2 feature
1562 #
1563 config CPU_MIPSR2_IRQ_EI
1564 bool
1565
1566 config CPU_HAS_SYNC
1567 bool
1568 depends on !CPU_R3000
1569 default y
1570
1571 config GENERIC_CLOCKEVENTS_BROADCAST
1572 bool
1573
1574 #
1575 # CPU non-features
1576 #
1577 config CPU_DADDI_WORKAROUNDS
1578 bool
1579
1580 config CPU_R4000_WORKAROUNDS
1581 bool
1582 select CPU_R4400_WORKAROUNDS
1583
1584 config CPU_R4400_WORKAROUNDS
1585 bool
1586
1587 #
1588 # Use the generic interrupt handling code in kernel/irq/:
1589 #
1590 config GENERIC_HARDIRQS
1591 bool
1592 default y
1593
1594 config GENERIC_IRQ_PROBE
1595 bool
1596 default y
1597
1598 config IRQ_PER_CPU
1599 bool
1600
1601 #
1602 # - Highmem only makes sense for the 32-bit kernel.
1603 # - The current highmem code will only work properly on physically indexed
1604 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1605 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1606 # moment we protect the user and offer the highmem option only on machines
1607 # where it's known to be safe. This will not offer highmem on a few systems
1608 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1609 # indexed CPUs but we're playing safe.
1610 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1611 # know they might have memory configurations that could make use of highmem
1612 # support.
1613 #
1614 config HIGHMEM
1615 bool "High Memory Support"
1616 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1617
1618 config CPU_SUPPORTS_HIGHMEM
1619 bool
1620
1621 config SYS_SUPPORTS_HIGHMEM
1622 bool
1623
1624 config SYS_SUPPORTS_SMARTMIPS
1625 bool
1626
1627 config ARCH_FLATMEM_ENABLE
1628 def_bool y
1629 depends on !NUMA
1630
1631 config ARCH_DISCONTIGMEM_ENABLE
1632 bool
1633 default y if SGI_IP27
1634 help
1635 Say Y to support efficient handling of discontiguous physical memory,
1636 for architectures which are either NUMA (Non-Uniform Memory Access)
1637 or have huge holes in the physical address space for other reasons.
1638 See <file:Documentation/vm/numa> for more.
1639
1640 config ARCH_POPULATES_NODE_MAP
1641 def_bool y
1642
1643 config ARCH_SPARSEMEM_ENABLE
1644 bool
1645 select SPARSEMEM_STATIC
1646
1647 config NUMA
1648 bool "NUMA Support"
1649 depends on SYS_SUPPORTS_NUMA
1650 help
1651 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1652 Access). This option improves performance on systems with more
1653 than two nodes; on two node systems it is generally better to
1654 leave it disabled; on single node systems disable this option
1655 disabled.
1656
1657 config SYS_SUPPORTS_NUMA
1658 bool
1659
1660 config NODES_SHIFT
1661 int
1662 default "6"
1663 depends on NEED_MULTIPLE_NODES
1664
1665 source "mm/Kconfig"
1666
1667 config SMP
1668 bool "Multi-Processing support"
1669 depends on SYS_SUPPORTS_SMP
1670 select IRQ_PER_CPU
1671 select USE_GENERIC_SMP_HELPERS
1672 help
1673 This enables support for systems with more than one CPU. If you have
1674 a system with only one CPU, like most personal computers, say N. If
1675 you have a system with more than one CPU, say Y.
1676
1677 If you say N here, the kernel will run on single and multiprocessor
1678 machines, but will use only one CPU of a multiprocessor machine. If
1679 you say Y here, the kernel will run on many, but not all,
1680 singleprocessor machines. On a singleprocessor machine, the kernel
1681 will run faster if you say N here.
1682
1683 People using multiprocessor machines who say Y here should also say
1684 Y to "Enhanced Real Time Clock Support", below.
1685
1686 See also the SMP-HOWTO available at
1687 <http://www.tldp.org/docs.html#howto>.
1688
1689 If you don't know what to do here, say N.
1690
1691 config SMP_UP
1692 bool
1693
1694 config SYS_SUPPORTS_MIPS_CMP
1695 bool
1696
1697 config SYS_SUPPORTS_SMP
1698 bool
1699
1700 config NR_CPUS_DEFAULT_1
1701 bool
1702
1703 config NR_CPUS_DEFAULT_2
1704 bool
1705
1706 config NR_CPUS_DEFAULT_4
1707 bool
1708
1709 config NR_CPUS_DEFAULT_8
1710 bool
1711
1712 config NR_CPUS_DEFAULT_16
1713 bool
1714
1715 config NR_CPUS_DEFAULT_32
1716 bool
1717
1718 config NR_CPUS_DEFAULT_64
1719 bool
1720
1721 config NR_CPUS
1722 int "Maximum number of CPUs (2-64)"
1723 range 1 64 if NR_CPUS_DEFAULT_1
1724 depends on SMP
1725 default "1" if NR_CPUS_DEFAULT_1
1726 default "2" if NR_CPUS_DEFAULT_2
1727 default "4" if NR_CPUS_DEFAULT_4
1728 default "8" if NR_CPUS_DEFAULT_8
1729 default "16" if NR_CPUS_DEFAULT_16
1730 default "32" if NR_CPUS_DEFAULT_32
1731 default "64" if NR_CPUS_DEFAULT_64
1732 help
1733 This allows you to specify the maximum number of CPUs which this
1734 kernel will support. The maximum supported value is 32 for 32-bit
1735 kernel and 64 for 64-bit kernels; the minimum value which makes
1736 sense is 1 for Qemu (useful only for kernel debugging purposes)
1737 and 2 for all others.
1738
1739 This is purely to save memory - each supported CPU adds
1740 approximately eight kilobytes to the kernel image. For best
1741 performance should round up your number of processors to the next
1742 power of two.
1743
1744 source "kernel/time/Kconfig"
1745
1746 #
1747 # Timer Interrupt Frequency Configuration
1748 #
1749
1750 choice
1751 prompt "Timer frequency"
1752 default HZ_250
1753 help
1754 Allows the configuration of the timer frequency.
1755
1756 config HZ_48
1757 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1758
1759 config HZ_100
1760 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1761
1762 config HZ_128
1763 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1764
1765 config HZ_250
1766 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1767
1768 config HZ_256
1769 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1770
1771 config HZ_1000
1772 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1773
1774 config HZ_1024
1775 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1776
1777 endchoice
1778
1779 config SYS_SUPPORTS_48HZ
1780 bool
1781
1782 config SYS_SUPPORTS_100HZ
1783 bool
1784
1785 config SYS_SUPPORTS_128HZ
1786 bool
1787
1788 config SYS_SUPPORTS_250HZ
1789 bool
1790
1791 config SYS_SUPPORTS_256HZ
1792 bool
1793
1794 config SYS_SUPPORTS_1000HZ
1795 bool
1796
1797 config SYS_SUPPORTS_1024HZ
1798 bool
1799
1800 config SYS_SUPPORTS_ARBIT_HZ
1801 bool
1802 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
1803 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
1804 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
1805 !SYS_SUPPORTS_1024HZ
1806
1807 config HZ
1808 int
1809 default 48 if HZ_48
1810 default 100 if HZ_100
1811 default 128 if HZ_128
1812 default 250 if HZ_250
1813 default 256 if HZ_256
1814 default 1000 if HZ_1000
1815 default 1024 if HZ_1024
1816
1817 source "kernel/Kconfig.preempt"
1818
1819 config MIPS_INSANE_LARGE
1820 bool "Support for large 64-bit configurations"
1821 depends on CPU_R10000 && 64BIT
1822 help
1823 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1824 previous 64-bit processors which only supported 40 bit / 1TB. If you
1825 need processes of more than 1TB virtual address space, say Y here.
1826 This will result in additional memory usage, so it is not
1827 recommended for normal users.
1828
1829 config KEXEC
1830 bool "Kexec system call (EXPERIMENTAL)"
1831 depends on EXPERIMENTAL
1832 help
1833 kexec is a system call that implements the ability to shutdown your
1834 current kernel, and to start another kernel. It is like a reboot
1835 but it is independent of the system firmware. And like a reboot
1836 you can start any kernel with it, not just Linux.
1837
1838 The name comes from the similarity to the exec system call.
1839
1840 It is an ongoing process to be certain the hardware in a machine
1841 is properly shutdown, so do not be surprised if this code does not
1842 initially work for you. It may help to enable device hotplugging
1843 support. As of this writing the exact hardware interface is
1844 strongly in flux, so no good recommendation can be made.
1845
1846 config SECCOMP
1847 bool "Enable seccomp to safely compute untrusted bytecode"
1848 depends on PROC_FS
1849 default y
1850 help
1851 This kernel feature is useful for number crunching applications
1852 that may need to compute untrusted bytecode during their
1853 execution. By using pipes or other transports made available to
1854 the process as file descriptors supporting the read/write
1855 syscalls, it's possible to isolate those applications in
1856 their own address space using seccomp. Once seccomp is
1857 enabled via /proc/<pid>/seccomp, it cannot be disabled
1858 and the task is only allowed to execute a few safe syscalls
1859 defined by each seccomp mode.
1860
1861 If unsure, say Y. Only embedded should say N here.
1862
1863 endmenu
1864
1865 config RWSEM_GENERIC_SPINLOCK
1866 bool
1867 default y
1868
1869 config LOCKDEP_SUPPORT
1870 bool
1871 default y
1872
1873 config STACKTRACE_SUPPORT
1874 bool
1875 default y
1876
1877 source "init/Kconfig"
1878
1879 config PROBE_INITRD_HEADER
1880 bool "Probe initrd header created by addinitrd"
1881 depends on BLK_DEV_INITRD
1882 help
1883 Probe initrd header at the last page of kernel image.
1884 Say Y here if you are using arch/mips/boot/addinitrd.c to
1885 add initrd or initramfs image to the kernel image.
1886 Otherwise, say N.
1887
1888 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1889
1890 config HW_HAS_EISA
1891 bool
1892 config HW_HAS_PCI
1893 bool
1894
1895 config PCI
1896 bool "Support for PCI controller"
1897 depends on HW_HAS_PCI
1898 select PCI_DOMAINS
1899 help
1900 Find out whether you have a PCI motherboard. PCI is the name of a
1901 bus system, i.e. the way the CPU talks to the other stuff inside
1902 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1903 say Y, otherwise N.
1904
1905 config PCI_DOMAINS
1906 bool
1907
1908 source "drivers/pci/Kconfig"
1909
1910 #
1911 # ISA support is now enabled via select. Too many systems still have the one
1912 # or other ISA chip on the board that users don't know about so don't expect
1913 # users to choose the right thing ...
1914 #
1915 config ISA
1916 bool
1917
1918 config EISA
1919 bool "EISA support"
1920 depends on HW_HAS_EISA
1921 select ISA
1922 select GENERIC_ISA_DMA
1923 ---help---
1924 The Extended Industry Standard Architecture (EISA) bus was
1925 developed as an open alternative to the IBM MicroChannel bus.
1926
1927 The EISA bus provided some of the features of the IBM MicroChannel
1928 bus while maintaining backward compatibility with cards made for
1929 the older ISA bus. The EISA bus saw limited use between 1988 and
1930 1995 when it was made obsolete by the PCI bus.
1931
1932 Say Y here if you are building a kernel for an EISA-based machine.
1933
1934 Otherwise, say N.
1935
1936 source "drivers/eisa/Kconfig"
1937
1938 config TC
1939 bool "TURBOchannel support"
1940 depends on MACH_DECSTATION
1941 help
1942 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1943 processors. Documentation on writing device drivers for TurboChannel
1944 is available at:
1945 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1946
1947 #config ACCESSBUS
1948 # bool "Access.Bus support"
1949 # depends on TC
1950
1951 config MMU
1952 bool
1953 default y
1954
1955 config I8253
1956 bool
1957
1958 config ZONE_DMA32
1959 bool
1960
1961 source "drivers/pcmcia/Kconfig"
1962
1963 source "drivers/pci/hotplug/Kconfig"
1964
1965 endmenu
1966
1967 menu "Executable file formats"
1968
1969 source "fs/Kconfig.binfmt"
1970
1971 config TRAD_SIGNALS
1972 bool
1973
1974 config MIPS32_COMPAT
1975 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1976 depends on 64BIT
1977 help
1978 Select this option if you want Linux/MIPS 32-bit binary
1979 compatibility. Since all software available for Linux/MIPS is
1980 currently 32-bit you should say Y here.
1981
1982 config COMPAT
1983 bool
1984 depends on MIPS32_COMPAT
1985 default y
1986
1987 config SYSVIPC_COMPAT
1988 bool
1989 depends on COMPAT && SYSVIPC
1990 default y
1991
1992 config MIPS32_O32
1993 bool "Kernel support for o32 binaries"
1994 depends on MIPS32_COMPAT
1995 help
1996 Select this option if you want to run o32 binaries. These are pure
1997 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
1998 existing binaries are in this format.
1999
2000 If unsure, say Y.
2001
2002 config MIPS32_N32
2003 bool "Kernel support for n32 binaries"
2004 depends on MIPS32_COMPAT
2005 help
2006 Select this option if you want to run n32 binaries. These are
2007 64-bit binaries using 32-bit quantities for addressing and certain
2008 data that would normally be 64-bit. They are used in special
2009 cases.
2010
2011 If unsure, say N.
2012
2013 config BINFMT_ELF32
2014 bool
2015 default y if MIPS32_O32 || MIPS32_N32
2016
2017 endmenu
2018
2019 menu "Power management options"
2020
2021 config ARCH_SUSPEND_POSSIBLE
2022 def_bool y
2023 depends on !SMP
2024
2025 source "kernel/power/Kconfig"
2026
2027 endmenu
2028
2029 source "net/Kconfig"
2030
2031 source "drivers/Kconfig"
2032
2033 source "fs/Kconfig"
2034
2035 source "arch/mips/Kconfig.debug"
2036
2037 source "security/Kconfig"
2038
2039 source "crypto/Kconfig"
2040
2041 source "lib/Kconfig"
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