MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS
[linux-2.6-block.git] / arch / mips / Kconfig
... / ...
CommitLineData
1config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_ARCH_KGDB
8 select HAVE_FUNCTION_TRACER
9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
10 select HAVE_DYNAMIC_FTRACE
11 select HAVE_FTRACE_MCOUNT_RECORD
12 # Horrible source of confusion. Die, die, die ...
13 select EMBEDDED
14 select RTC_LIB if !MACH_LOONGSON
15
16mainmenu "Linux/MIPS Kernel Configuration"
17
18menu "Machine selection"
19
20config ZONE_DMA
21 bool
22
23choice
24 prompt "System type"
25 default SGI_IP22
26
27config MACH_ALCHEMY
28 bool "Alchemy processor based machines"
29 select SYS_SUPPORTS_ZBOOT
30
31config AR7
32 bool "Texas Instruments AR7"
33 select BOOT_ELF32
34 select DMA_NONCOHERENT
35 select CEVT_R4K
36 select CSRC_R4K
37 select IRQ_CPU
38 select NO_EXCEPT_FILL
39 select SWAP_IO_SPACE
40 select SYS_HAS_CPU_MIPS32_R1
41 select SYS_HAS_EARLY_PRINTK
42 select SYS_SUPPORTS_32BIT_KERNEL
43 select SYS_SUPPORTS_LITTLE_ENDIAN
44 select SYS_SUPPORTS_ZBOOT_UART16550
45 select GENERIC_GPIO
46 select GCD
47 select VLYNQ
48 help
49 Support for the Texas Instruments AR7 System-on-a-Chip
50 family: TNETD7100, 7200 and 7300.
51
52config BASLER_EXCITE
53 bool "Basler eXcite smart camera"
54 select CEVT_R4K
55 select CSRC_R4K
56 select DMA_COHERENT
57 select HW_HAS_PCI
58 select IRQ_CPU
59 select IRQ_CPU_RM7K
60 select IRQ_CPU_RM9K
61 select MIPS_RM9122
62 select SYS_HAS_CPU_RM9000
63 select SYS_SUPPORTS_32BIT_KERNEL
64 select SYS_SUPPORTS_BIG_ENDIAN
65 help
66 The eXcite is a smart camera platform manufactured by
67 Basler Vision Technologies AG.
68
69config BCM47XX
70 bool "BCM47XX based boards"
71 select CEVT_R4K
72 select CSRC_R4K
73 select DMA_NONCOHERENT
74 select HW_HAS_PCI
75 select IRQ_CPU
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_SUPPORTS_32BIT_KERNEL
78 select SYS_SUPPORTS_LITTLE_ENDIAN
79 select SSB
80 select SSB_DRIVER_MIPS
81 select SSB_DRIVER_EXTIF
82 select SSB_EMBEDDED
83 select SSB_PCICORE_HOSTMODE if PCI
84 select GENERIC_GPIO
85 select SYS_HAS_EARLY_PRINTK
86 select CFE
87 help
88 Support for BCM47XX based boards
89
90config BCM63XX
91 bool "Broadcom BCM63XX based boards"
92 select CEVT_R4K
93 select CSRC_R4K
94 select DMA_NONCOHERENT
95 select IRQ_CPU
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_BIG_ENDIAN
99 select SYS_HAS_EARLY_PRINTK
100 select SWAP_IO_SPACE
101 select ARCH_REQUIRE_GPIOLIB
102 help
103 Support for BCM63XX based boards
104
105config MIPS_COBALT
106 bool "Cobalt Server"
107 select CEVT_R4K
108 select CSRC_R4K
109 select CEVT_GT641XX
110 select DMA_NONCOHERENT
111 select HW_HAS_PCI
112 select I8253
113 select I8259
114 select IRQ_CPU
115 select IRQ_GT641XX
116 select PCI_GT64XXX_PCI0
117 select PCI
118 select SYS_HAS_CPU_NEVADA
119 select SYS_HAS_EARLY_PRINTK
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_64BIT_KERNEL
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123
124config MACH_DECSTATION
125 bool "DECstations"
126 select BOOT_ELF32
127 select CEVT_DS1287
128 select CEVT_R4K
129 select CSRC_IOASIC
130 select CSRC_R4K
131 select CPU_DADDI_WORKAROUNDS if 64BIT
132 select CPU_R4000_WORKAROUNDS if 64BIT
133 select CPU_R4400_WORKAROUNDS if 64BIT
134 select DMA_NONCOHERENT
135 select NO_IOPORT
136 select IRQ_CPU
137 select SYS_HAS_CPU_R3000
138 select SYS_HAS_CPU_R4X00
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
141 select SYS_SUPPORTS_LITTLE_ENDIAN
142 select SYS_SUPPORTS_128HZ
143 select SYS_SUPPORTS_256HZ
144 select SYS_SUPPORTS_1024HZ
145 help
146 This enables support for DEC's MIPS based workstations. For details
147 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
148 DECstation porting pages on <http://decstation.unix-ag.org/>.
149
150 If you have one of the following DECstation Models you definitely
151 want to choose R4xx0 for the CPU Type:
152
153 DECstation 5000/50
154 DECstation 5000/150
155 DECstation 5000/260
156 DECsystem 5900/260
157
158 otherwise choose R3000.
159
160config MACH_JAZZ
161 bool "Jazz family of machines"
162 select ARC
163 select ARC32
164 select ARCH_MAY_HAVE_PC_FDC
165 select CEVT_R4K
166 select CSRC_R4K
167 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
168 select GENERIC_ISA_DMA
169 select IRQ_CPU
170 select I8253
171 select I8259
172 select ISA
173 select SYS_HAS_CPU_R4X00
174 select SYS_SUPPORTS_32BIT_KERNEL
175 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
176 select SYS_SUPPORTS_100HZ
177 help
178 This a family of machines based on the MIPS R4030 chipset which was
179 used by several vendors to build RISC/os and Windows NT workstations.
180 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
181 Olivetti M700-10 workstations.
182
183config LASAT
184 bool "LASAT Networks platforms"
185 select CEVT_R4K
186 select CSRC_R4K
187 select DMA_NONCOHERENT
188 select SYS_HAS_EARLY_PRINTK
189 select HW_HAS_PCI
190 select IRQ_CPU
191 select PCI_GT64XXX_PCI0
192 select MIPS_NILE4
193 select R5000_CPU_SCACHE
194 select SYS_HAS_CPU_R5000
195 select SYS_SUPPORTS_32BIT_KERNEL
196 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
197 select SYS_SUPPORTS_LITTLE_ENDIAN
198
199config MACH_LOONGSON
200 bool "Loongson family of machines"
201 select SYS_SUPPORTS_ZBOOT_UART16550
202 help
203 This enables the support of Loongson family of machines.
204
205 Loongson is a family of general-purpose MIPS-compatible CPUs.
206 developed at Institute of Computing Technology (ICT),
207 Chinese Academy of Sciences (CAS) in the People's Republic
208 of China. The chief architect is Professor Weiwu Hu.
209
210config MIPS_MALTA
211 bool "MIPS Malta board"
212 select ARCH_MAY_HAVE_PC_FDC
213 select BOOT_ELF32
214 select BOOT_RAW
215 select CEVT_R4K
216 select CSRC_R4K
217 select DMA_NONCOHERENT
218 select GENERIC_ISA_DMA
219 select IRQ_CPU
220 select IRQ_GIC
221 select HW_HAS_PCI
222 select I8253
223 select I8259
224 select MIPS_BOARDS_GEN
225 select MIPS_BONITO64
226 select MIPS_CPU_SCACHE
227 select PCI_GT64XXX_PCI0
228 select MIPS_MSC
229 select SWAP_IO_SPACE
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_HAS_CPU_MIPS32_R2
232 select SYS_HAS_CPU_MIPS64_R1
233 select SYS_HAS_CPU_NEVADA
234 select SYS_HAS_CPU_RM7000
235 select SYS_HAS_EARLY_PRINTK
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_64BIT_KERNEL
238 select SYS_SUPPORTS_BIG_ENDIAN
239 select SYS_SUPPORTS_LITTLE_ENDIAN
240 select SYS_SUPPORTS_MIPS_CMP
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_SUPPORTS_SMARTMIPS
243 select SYS_SUPPORTS_ZBOOT
244 help
245 This enables support for the MIPS Technologies Malta evaluation
246 board.
247
248config MIPS_SIM
249 bool 'MIPS simulator (MIPSsim)'
250 select CEVT_R4K
251 select CSRC_R4K
252 select DMA_NONCOHERENT
253 select SYS_HAS_EARLY_PRINTK
254 select IRQ_CPU
255 select BOOT_RAW
256 select SYS_HAS_CPU_MIPS32_R1
257 select SYS_HAS_CPU_MIPS32_R2
258 select SYS_HAS_EARLY_PRINTK
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_BIG_ENDIAN
261 select SYS_SUPPORTS_MULTITHREADING
262 select SYS_SUPPORTS_LITTLE_ENDIAN
263 help
264 This option enables support for MIPS Technologies MIPSsim software
265 emulator.
266
267config NEC_MARKEINS
268 bool "NEC EMMA2RH Mark-eins board"
269 select SOC_EMMA2RH
270 select HW_HAS_PCI
271 help
272 This enables support for the NEC Electronics Mark-eins boards.
273
274config MACH_VR41XX
275 bool "NEC VR4100 series based machines"
276 select CEVT_R4K
277 select CSRC_R4K
278 select SYS_HAS_CPU_VR41XX
279 select ARCH_REQUIRE_GPIOLIB
280
281config NXP_STB220
282 bool "NXP STB220 board"
283 select SOC_PNX833X
284 help
285 Support for NXP Semiconductors STB220 Development Board.
286
287config NXP_STB225
288 bool "NXP 225 board"
289 select SOC_PNX833X
290 select SOC_PNX8335
291 help
292 Support for NXP Semiconductors STB225 Development Board.
293
294config PNX8550_JBS
295 bool "NXP PNX8550 based JBS board"
296 select PNX8550
297 select SYS_SUPPORTS_LITTLE_ENDIAN
298
299config PNX8550_STB810
300 bool "NXP PNX8550 based STB810 board"
301 select PNX8550
302 select SYS_SUPPORTS_LITTLE_ENDIAN
303
304config PMC_MSP
305 bool "PMC-Sierra MSP chipsets"
306 depends on EXPERIMENTAL
307 select DMA_NONCOHERENT
308 select SWAP_IO_SPACE
309 select NO_EXCEPT_FILL
310 select BOOT_RAW
311 select SYS_HAS_CPU_MIPS32_R1
312 select SYS_HAS_CPU_MIPS32_R2
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_BIG_ENDIAN
315 select IRQ_CPU
316 select SERIAL_8250
317 select SERIAL_8250_CONSOLE
318 help
319 This adds support for the PMC-Sierra family of Multi-Service
320 Processor System-On-A-Chips. These parts include a number
321 of integrated peripherals, interfaces and DSPs in addition to
322 a variety of MIPS cores.
323
324config PMC_YOSEMITE
325 bool "PMC-Sierra Yosemite eval board"
326 select CEVT_R4K
327 select CSRC_R4K
328 select DMA_COHERENT
329 select HW_HAS_PCI
330 select IRQ_CPU
331 select IRQ_CPU_RM7K
332 select IRQ_CPU_RM9K
333 select SWAP_IO_SPACE
334 select SYS_HAS_CPU_RM9000
335 select SYS_HAS_EARLY_PRINTK
336 select SYS_SUPPORTS_32BIT_KERNEL
337 select SYS_SUPPORTS_64BIT_KERNEL
338 select SYS_SUPPORTS_BIG_ENDIAN
339 select SYS_SUPPORTS_HIGHMEM
340 select SYS_SUPPORTS_SMP
341 help
342 Yosemite is an evaluation board for the RM9000x2 processor
343 manufactured by PMC-Sierra.
344
345config POWERTV
346 bool "Cisco PowerTV"
347 select BOOT_ELF32
348 select CEVT_R4K
349 select CPU_MIPSR2_IRQ_VI
350 select CPU_MIPSR2_IRQ_EI
351 select CSRC_POWERTV
352 select DMA_NONCOHERENT
353 select HW_HAS_PCI
354 select SYS_HAS_EARLY_PRINTK
355 select SYS_HAS_CPU_MIPS32_R2
356 select SYS_SUPPORTS_32BIT_KERNEL
357 select SYS_SUPPORTS_BIG_ENDIAN
358 select SYS_SUPPORTS_HIGHMEM
359 select USB_OHCI_LITTLE_ENDIAN
360 help
361 This enables support for the Cisco PowerTV Platform.
362
363config SGI_IP22
364 bool "SGI IP22 (Indy/Indigo2)"
365 select ARC
366 select ARC32
367 select BOOT_ELF32
368 select CEVT_R4K
369 select CSRC_R4K
370 select DEFAULT_SGI_PARTITION
371 select DMA_NONCOHERENT
372 select HW_HAS_EISA
373 select I8253
374 select I8259
375 select IP22_CPU_SCACHE
376 select IRQ_CPU
377 select GENERIC_ISA_DMA_SUPPORT_BROKEN
378 select SGI_HAS_I8042
379 select SGI_HAS_INDYDOG
380 select SGI_HAS_HAL2
381 select SGI_HAS_SEEQ
382 select SGI_HAS_WD93
383 select SGI_HAS_ZILOG
384 select SWAP_IO_SPACE
385 select SYS_HAS_CPU_R4X00
386 select SYS_HAS_CPU_R5000
387 #
388 # Disable EARLY_PRINTK for now since it leads to overwritten prom
389 # memory during early boot on some machines.
390 #
391 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
392 # for a more details discussion
393 #
394 # select SYS_HAS_EARLY_PRINTK
395 select SYS_SUPPORTS_32BIT_KERNEL
396 select SYS_SUPPORTS_64BIT_KERNEL
397 select SYS_SUPPORTS_BIG_ENDIAN
398 help
399 This are the SGI Indy, Challenge S and Indigo2, as well as certain
400 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
401 that runs on these, say Y here.
402
403config SGI_IP27
404 bool "SGI IP27 (Origin200/2000)"
405 select ARC
406 select ARC64
407 select BOOT_ELF64
408 select DEFAULT_SGI_PARTITION
409 select DMA_COHERENT
410 select SYS_HAS_EARLY_PRINTK
411 select HW_HAS_PCI
412 select NR_CPUS_DEFAULT_64
413 select SYS_HAS_CPU_R10000
414 select SYS_SUPPORTS_64BIT_KERNEL
415 select SYS_SUPPORTS_BIG_ENDIAN
416 select SYS_SUPPORTS_NUMA
417 select SYS_SUPPORTS_SMP
418 help
419 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
420 workstations. To compile a Linux kernel that runs on these, say Y
421 here.
422
423config SGI_IP28
424 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
425 depends on EXPERIMENTAL
426 select ARC
427 select ARC64
428 select BOOT_ELF64
429 select CEVT_R4K
430 select CSRC_R4K
431 select DEFAULT_SGI_PARTITION
432 select DMA_NONCOHERENT
433 select GENERIC_ISA_DMA_SUPPORT_BROKEN
434 select IRQ_CPU
435 select HW_HAS_EISA
436 select I8253
437 select I8259
438 select SGI_HAS_I8042
439 select SGI_HAS_INDYDOG
440 select SGI_HAS_HAL2
441 select SGI_HAS_SEEQ
442 select SGI_HAS_WD93
443 select SGI_HAS_ZILOG
444 select SWAP_IO_SPACE
445 select SYS_HAS_CPU_R10000
446 #
447 # Disable EARLY_PRINTK for now since it leads to overwritten prom
448 # memory during early boot on some machines.
449 #
450 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
451 # for a more details discussion
452 #
453 # select SYS_HAS_EARLY_PRINTK
454 select SYS_SUPPORTS_64BIT_KERNEL
455 select SYS_SUPPORTS_BIG_ENDIAN
456 help
457 This is the SGI Indigo2 with R10000 processor. To compile a Linux
458 kernel that runs on these, say Y here.
459
460config SGI_IP32
461 bool "SGI IP32 (O2)"
462 select ARC
463 select ARC32
464 select BOOT_ELF32
465 select CEVT_R4K
466 select CSRC_R4K
467 select DMA_NONCOHERENT
468 select HW_HAS_PCI
469 select IRQ_CPU
470 select R5000_CPU_SCACHE
471 select RM7000_CPU_SCACHE
472 select SYS_HAS_CPU_R5000
473 select SYS_HAS_CPU_R10000 if BROKEN
474 select SYS_HAS_CPU_RM7000
475 select SYS_HAS_CPU_NEVADA
476 select SYS_SUPPORTS_64BIT_KERNEL
477 select SYS_SUPPORTS_BIG_ENDIAN
478 help
479 If you want this kernel to run on SGI O2 workstation, say Y here.
480
481config SIBYTE_CRHINE
482 bool "Sibyte BCM91120C-CRhine"
483 depends on EXPERIMENTAL
484 select BOOT_ELF32
485 select DMA_COHERENT
486 select SIBYTE_BCM1120
487 select SWAP_IO_SPACE
488 select SYS_HAS_CPU_SB1
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select SYS_SUPPORTS_LITTLE_ENDIAN
491
492config SIBYTE_CARMEL
493 bool "Sibyte BCM91120x-Carmel"
494 depends on EXPERIMENTAL
495 select BOOT_ELF32
496 select DMA_COHERENT
497 select SIBYTE_BCM1120
498 select SWAP_IO_SPACE
499 select SYS_HAS_CPU_SB1
500 select SYS_SUPPORTS_BIG_ENDIAN
501 select SYS_SUPPORTS_LITTLE_ENDIAN
502
503config SIBYTE_CRHONE
504 bool "Sibyte BCM91125C-CRhone"
505 depends on EXPERIMENTAL
506 select BOOT_ELF32
507 select DMA_COHERENT
508 select SIBYTE_BCM1125
509 select SWAP_IO_SPACE
510 select SYS_HAS_CPU_SB1
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_HIGHMEM
513 select SYS_SUPPORTS_LITTLE_ENDIAN
514
515config SIBYTE_RHONE
516 bool "Sibyte BCM91125E-Rhone"
517 depends on EXPERIMENTAL
518 select BOOT_ELF32
519 select DMA_COHERENT
520 select SIBYTE_BCM1125H
521 select SWAP_IO_SPACE
522 select SYS_HAS_CPU_SB1
523 select SYS_SUPPORTS_BIG_ENDIAN
524 select SYS_SUPPORTS_LITTLE_ENDIAN
525
526config SIBYTE_SWARM
527 bool "Sibyte BCM91250A-SWARM"
528 select BOOT_ELF32
529 select DMA_COHERENT
530 select NR_CPUS_DEFAULT_2
531 select SIBYTE_SB1250
532 select SWAP_IO_SPACE
533 select SYS_HAS_CPU_SB1
534 select SYS_SUPPORTS_BIG_ENDIAN
535 select SYS_SUPPORTS_HIGHMEM
536 select SYS_SUPPORTS_LITTLE_ENDIAN
537 select ZONE_DMA32 if 64BIT
538
539config SIBYTE_LITTLESUR
540 bool "Sibyte BCM91250C2-LittleSur"
541 depends on EXPERIMENTAL
542 select BOOT_ELF32
543 select DMA_COHERENT
544 select NR_CPUS_DEFAULT_2
545 select SIBYTE_SB1250
546 select SWAP_IO_SPACE
547 select SYS_HAS_CPU_SB1
548 select SYS_SUPPORTS_BIG_ENDIAN
549 select SYS_SUPPORTS_HIGHMEM
550 select SYS_SUPPORTS_LITTLE_ENDIAN
551
552config SIBYTE_SENTOSA
553 bool "Sibyte BCM91250E-Sentosa"
554 depends on EXPERIMENTAL
555 select BOOT_ELF32
556 select DMA_COHERENT
557 select NR_CPUS_DEFAULT_2
558 select SIBYTE_SB1250
559 select SWAP_IO_SPACE
560 select SYS_HAS_CPU_SB1
561 select SYS_SUPPORTS_BIG_ENDIAN
562 select SYS_SUPPORTS_LITTLE_ENDIAN
563
564config SIBYTE_BIGSUR
565 bool "Sibyte BCM91480B-BigSur"
566 select BOOT_ELF32
567 select DMA_COHERENT
568 select NR_CPUS_DEFAULT_4
569 select SIBYTE_BCM1x80
570 select SWAP_IO_SPACE
571 select SYS_HAS_CPU_SB1
572 select SYS_SUPPORTS_BIG_ENDIAN
573 select SYS_SUPPORTS_HIGHMEM
574 select SYS_SUPPORTS_LITTLE_ENDIAN
575 select ZONE_DMA32 if 64BIT
576
577config SNI_RM
578 bool "SNI RM200/300/400"
579 select ARC if CPU_LITTLE_ENDIAN
580 select ARC32 if CPU_LITTLE_ENDIAN
581 select SNIPROM if CPU_BIG_ENDIAN
582 select ARCH_MAY_HAVE_PC_FDC
583 select BOOT_ELF32
584 select CEVT_R4K
585 select CSRC_R4K
586 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
587 select DMA_NONCOHERENT
588 select GENERIC_ISA_DMA
589 select HW_HAS_EISA
590 select HW_HAS_PCI
591 select IRQ_CPU
592 select I8253
593 select I8259
594 select ISA
595 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
596 select SYS_HAS_CPU_R4X00
597 select SYS_HAS_CPU_R5000
598 select SYS_HAS_CPU_R10000
599 select R5000_CPU_SCACHE
600 select SYS_HAS_EARLY_PRINTK
601 select SYS_SUPPORTS_32BIT_KERNEL
602 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
603 select SYS_SUPPORTS_BIG_ENDIAN
604 select SYS_SUPPORTS_HIGHMEM
605 select SYS_SUPPORTS_LITTLE_ENDIAN
606 help
607 The SNI RM200/300/400 are MIPS-based machines manufactured by
608 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
609 Technology and now in turn merged with Fujitsu. Say Y here to
610 support this machine type.
611
612config MACH_TX39XX
613 bool "Toshiba TX39 series based machines"
614
615config MACH_TX49XX
616 bool "Toshiba TX49 series based machines"
617
618config MIKROTIK_RB532
619 bool "Mikrotik RB532 boards"
620 select CEVT_R4K
621 select CSRC_R4K
622 select DMA_NONCOHERENT
623 select HW_HAS_PCI
624 select IRQ_CPU
625 select SYS_HAS_CPU_MIPS32_R1
626 select SYS_SUPPORTS_32BIT_KERNEL
627 select SYS_SUPPORTS_LITTLE_ENDIAN
628 select SWAP_IO_SPACE
629 select BOOT_RAW
630 select ARCH_REQUIRE_GPIOLIB
631 help
632 Support the Mikrotik(tm) RouterBoard 532 series,
633 based on the IDT RC32434 SoC.
634
635config WR_PPMC
636 bool "Wind River PPMC board"
637 select CEVT_R4K
638 select CSRC_R4K
639 select IRQ_CPU
640 select BOOT_ELF32
641 select DMA_NONCOHERENT
642 select HW_HAS_PCI
643 select PCI_GT64XXX_PCI0
644 select SWAP_IO_SPACE
645 select SYS_HAS_CPU_MIPS32_R1
646 select SYS_HAS_CPU_MIPS32_R2
647 select SYS_HAS_CPU_MIPS64_R1
648 select SYS_HAS_CPU_NEVADA
649 select SYS_HAS_CPU_RM7000
650 select SYS_SUPPORTS_32BIT_KERNEL
651 select SYS_SUPPORTS_64BIT_KERNEL
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_LITTLE_ENDIAN
654 help
655 This enables support for the Wind River MIPS32 4KC PPMC evaluation
656 board, which is based on GT64120 bridge chip.
657
658config CAVIUM_OCTEON_SIMULATOR
659 bool "Cavium Networks Octeon Simulator"
660 select CEVT_R4K
661 select 64BIT_PHYS_ADDR
662 select DMA_COHERENT
663 select SYS_SUPPORTS_64BIT_KERNEL
664 select SYS_SUPPORTS_BIG_ENDIAN
665 select SYS_SUPPORTS_HIGHMEM
666 select SYS_SUPPORTS_HOTPLUG_CPU
667 select SYS_HAS_CPU_CAVIUM_OCTEON
668 help
669 The Octeon simulator is software performance model of the Cavium
670 Octeon Processor. It supports simulating Octeon processors on x86
671 hardware.
672
673config CAVIUM_OCTEON_REFERENCE_BOARD
674 bool "Cavium Networks Octeon reference board"
675 select CEVT_R4K
676 select 64BIT_PHYS_ADDR
677 select DMA_COHERENT
678 select SYS_SUPPORTS_64BIT_KERNEL
679 select SYS_SUPPORTS_BIG_ENDIAN
680 select SYS_SUPPORTS_HIGHMEM
681 select SYS_SUPPORTS_HOTPLUG_CPU
682 select SYS_HAS_EARLY_PRINTK
683 select SYS_HAS_CPU_CAVIUM_OCTEON
684 select SWAP_IO_SPACE
685 select HW_HAS_PCI
686 select ARCH_SUPPORTS_MSI
687 help
688 This option supports all of the Octeon reference boards from Cavium
689 Networks. It builds a kernel that dynamically determines the Octeon
690 CPU type and supports all known board reference implementations.
691 Some of the supported boards are:
692 EBT3000
693 EBH3000
694 EBH3100
695 Thunder
696 Kodama
697 Hikari
698 Say Y here for most Octeon reference boards.
699
700endchoice
701
702source "arch/mips/alchemy/Kconfig"
703source "arch/mips/basler/excite/Kconfig"
704source "arch/mips/bcm63xx/Kconfig"
705source "arch/mips/jazz/Kconfig"
706source "arch/mips/lasat/Kconfig"
707source "arch/mips/pmc-sierra/Kconfig"
708source "arch/mips/powertv/Kconfig"
709source "arch/mips/sgi-ip27/Kconfig"
710source "arch/mips/sibyte/Kconfig"
711source "arch/mips/txx9/Kconfig"
712source "arch/mips/vr41xx/Kconfig"
713source "arch/mips/cavium-octeon/Kconfig"
714source "arch/mips/loongson/Kconfig"
715
716endmenu
717
718config RWSEM_GENERIC_SPINLOCK
719 bool
720 default y
721
722config RWSEM_XCHGADD_ALGORITHM
723 bool
724
725config ARCH_HAS_ILOG2_U32
726 bool
727 default n
728
729config ARCH_HAS_ILOG2_U64
730 bool
731 default n
732
733config ARCH_SUPPORTS_OPROFILE
734 bool
735 default y if !MIPS_MT_SMTC
736
737config GENERIC_FIND_NEXT_BIT
738 bool
739 default y
740
741config GENERIC_HWEIGHT
742 bool
743 default y
744
745config GENERIC_CALIBRATE_DELAY
746 bool
747 default y
748
749config GENERIC_CLOCKEVENTS
750 bool
751 default y
752
753config GENERIC_TIME
754 bool
755 default y
756
757config GENERIC_CMOS_UPDATE
758 bool
759 default y
760
761config SCHED_OMIT_FRAME_POINTER
762 bool
763 default y
764
765config GENERIC_HARDIRQS_NO__DO_IRQ
766 def_bool y
767
768#
769# Select some configuration options automatically based on user selections.
770#
771config ARC
772 bool
773
774config ARCH_MAY_HAVE_PC_FDC
775 bool
776
777config BOOT_RAW
778 bool
779
780config CEVT_BCM1480
781 bool
782
783config CEVT_DS1287
784 bool
785
786config CEVT_GT641XX
787 bool
788
789config CEVT_R4K_LIB
790 bool
791
792config CEVT_R4K
793 select CEVT_R4K_LIB
794 bool
795
796config CEVT_SB1250
797 bool
798
799config CEVT_TXX9
800 bool
801
802config CSRC_BCM1480
803 bool
804
805config CSRC_IOASIC
806 bool
807
808config CSRC_POWERTV
809 bool
810
811config CSRC_R4K_LIB
812 bool
813
814config CSRC_R4K
815 select CSRC_R4K_LIB
816 bool
817
818config CSRC_SB1250
819 bool
820
821config GPIO_TXX9
822 select GENERIC_GPIO
823 select ARCH_REQUIRE_GPIOLIB
824 bool
825
826config CFE
827 bool
828
829config DMA_COHERENT
830 bool
831
832config DMA_NONCOHERENT
833 bool
834 select DMA_NEED_PCI_MAP_STATE
835
836config DMA_NEED_PCI_MAP_STATE
837 bool
838
839config EARLY_PRINTK
840 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
841 depends on SYS_HAS_EARLY_PRINTK
842 default y
843 help
844 This option enables special console drivers which allow the kernel
845 to print messages very early in the bootup process.
846
847 This is useful for kernel debugging when your machine crashes very
848 early before the console code is initialized. For normal operation,
849 it is not recommended because it looks ugly on some machines and
850 doesn't cooperate with an X server. You should normally say N here,
851 unless you want to debug such a crash.
852
853config SYS_HAS_EARLY_PRINTK
854 bool
855
856config HOTPLUG_CPU
857 bool "Support for hot-pluggable CPUs"
858 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
859 help
860 Say Y here to allow turning CPUs off and on. CPUs can be
861 controlled through /sys/devices/system/cpu.
862 (Note: power management support will enable this option
863 automatically on SMP systems. )
864 Say N if you want to disable CPU hotplug.
865
866config SYS_SUPPORTS_HOTPLUG_CPU
867 bool
868
869config I8259
870 bool
871
872config MIPS_BONITO64
873 bool
874
875config MIPS_MSC
876 bool
877
878config MIPS_NILE4
879 bool
880
881config MIPS_DISABLE_OBSOLETE_IDE
882 bool
883
884config SYNC_R4K
885 bool
886
887config NO_IOPORT
888 def_bool n
889
890config GENERIC_ISA_DMA
891 bool
892 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
893
894config GENERIC_ISA_DMA_SUPPORT_BROKEN
895 bool
896 select GENERIC_ISA_DMA
897
898config GENERIC_GPIO
899 bool
900
901#
902# Endianess selection. Sufficiently obscure so many users don't know what to
903# answer,so we try hard to limit the available choices. Also the use of a
904# choice statement should be more obvious to the user.
905#
906choice
907 prompt "Endianess selection"
908 help
909 Some MIPS machines can be configured for either little or big endian
910 byte order. These modes require different kernels and a different
911 Linux distribution. In general there is one preferred byteorder for a
912 particular system but some systems are just as commonly used in the
913 one or the other endianness.
914
915config CPU_BIG_ENDIAN
916 bool "Big endian"
917 depends on SYS_SUPPORTS_BIG_ENDIAN
918
919config CPU_LITTLE_ENDIAN
920 bool "Little endian"
921 depends on SYS_SUPPORTS_LITTLE_ENDIAN
922 help
923
924endchoice
925
926config SYS_SUPPORTS_APM_EMULATION
927 bool
928
929config SYS_SUPPORTS_BIG_ENDIAN
930 bool
931
932config SYS_SUPPORTS_LITTLE_ENDIAN
933 bool
934
935config SYS_SUPPORTS_HUGETLBFS
936 bool
937 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
938 default y
939
940config IRQ_CPU
941 bool
942
943config IRQ_CPU_RM7K
944 bool
945
946config IRQ_CPU_RM9K
947 bool
948
949config IRQ_MSP_SLP
950 bool
951
952config IRQ_MSP_CIC
953 bool
954
955config IRQ_TXX9
956 bool
957
958config IRQ_GT641XX
959 bool
960
961config IRQ_GIC
962 bool
963
964config IRQ_CPU_OCTEON
965 bool
966
967config MIPS_BOARDS_GEN
968 bool
969
970config PCI_GT64XXX_PCI0
971 bool
972
973config NO_EXCEPT_FILL
974 bool
975
976config MIPS_RM9122
977 bool
978 select SERIAL_RM9000
979
980config SOC_EMMA2RH
981 bool
982 select CEVT_R4K
983 select CSRC_R4K
984 select DMA_NONCOHERENT
985 select IRQ_CPU
986 select SWAP_IO_SPACE
987 select SYS_HAS_CPU_R5500
988 select SYS_SUPPORTS_32BIT_KERNEL
989 select SYS_SUPPORTS_64BIT_KERNEL
990 select SYS_SUPPORTS_BIG_ENDIAN
991
992config SOC_PNX833X
993 bool
994 select CEVT_R4K
995 select CSRC_R4K
996 select IRQ_CPU
997 select DMA_NONCOHERENT
998 select SYS_HAS_CPU_MIPS32_R2
999 select SYS_SUPPORTS_32BIT_KERNEL
1000 select SYS_SUPPORTS_LITTLE_ENDIAN
1001 select SYS_SUPPORTS_BIG_ENDIAN
1002 select GENERIC_GPIO
1003 select CPU_MIPSR2_IRQ_VI
1004
1005config SOC_PNX8335
1006 bool
1007 select SOC_PNX833X
1008
1009config PNX8550
1010 bool
1011 select SOC_PNX8550
1012
1013config SOC_PNX8550
1014 bool
1015 select DMA_NONCOHERENT
1016 select HW_HAS_PCI
1017 select SYS_HAS_CPU_MIPS32_R1
1018 select SYS_HAS_EARLY_PRINTK
1019 select SYS_SUPPORTS_32BIT_KERNEL
1020 select GENERIC_GPIO
1021
1022config SWAP_IO_SPACE
1023 bool
1024
1025config SERIAL_RM9000
1026 bool
1027
1028config SGI_HAS_INDYDOG
1029 bool
1030
1031config SGI_HAS_HAL2
1032 bool
1033
1034config SGI_HAS_SEEQ
1035 bool
1036
1037config SGI_HAS_WD93
1038 bool
1039
1040config SGI_HAS_ZILOG
1041 bool
1042
1043config SGI_HAS_I8042
1044 bool
1045
1046config DEFAULT_SGI_PARTITION
1047 bool
1048
1049config ARC32
1050 bool
1051
1052config SNIPROM
1053 bool
1054
1055config BOOT_ELF32
1056 bool
1057
1058config MIPS_L1_CACHE_SHIFT
1059 int
1060 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1061 default "6" if MIPS_CPU_SCACHE
1062 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1063 default "5"
1064
1065config HAVE_STD_PC_SERIAL_PORT
1066 bool
1067
1068config ARC_CONSOLE
1069 bool "ARC console support"
1070 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1071
1072config ARC_MEMORY
1073 bool
1074 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1075 default y
1076
1077config ARC_PROMLIB
1078 bool
1079 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1080 default y
1081
1082config ARC64
1083 bool
1084
1085config BOOT_ELF64
1086 bool
1087
1088menu "CPU selection"
1089
1090choice
1091 prompt "CPU type"
1092 default CPU_R4X00
1093
1094config CPU_LOONGSON2E
1095 bool "Loongson 2E"
1096 depends on SYS_HAS_CPU_LOONGSON2E
1097 select CPU_LOONGSON2
1098 help
1099 The Loongson 2E processor implements the MIPS III instruction set
1100 with many extensions.
1101
1102 It has an internal FPGA northbridge, which is compatiable to
1103 bonito64.
1104
1105config CPU_LOONGSON2F
1106 bool "Loongson 2F"
1107 depends on SYS_HAS_CPU_LOONGSON2F
1108 select CPU_LOONGSON2
1109 help
1110 The Loongson 2F processor implements the MIPS III instruction set
1111 with many extensions.
1112
1113 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1114 have a similar programming interface with FPGA northbridge used in
1115 Loongson2E.
1116
1117config CPU_MIPS32_R1
1118 bool "MIPS32 Release 1"
1119 depends on SYS_HAS_CPU_MIPS32_R1
1120 select CPU_HAS_PREFETCH
1121 select CPU_SUPPORTS_32BIT_KERNEL
1122 select CPU_SUPPORTS_HIGHMEM
1123 help
1124 Choose this option to build a kernel for release 1 or later of the
1125 MIPS32 architecture. Most modern embedded systems with a 32-bit
1126 MIPS processor are based on a MIPS32 processor. If you know the
1127 specific type of processor in your system, choose those that one
1128 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1129 Release 2 of the MIPS32 architecture is available since several
1130 years so chances are you even have a MIPS32 Release 2 processor
1131 in which case you should choose CPU_MIPS32_R2 instead for better
1132 performance.
1133
1134config CPU_MIPS32_R2
1135 bool "MIPS32 Release 2"
1136 depends on SYS_HAS_CPU_MIPS32_R2
1137 select CPU_HAS_PREFETCH
1138 select CPU_SUPPORTS_32BIT_KERNEL
1139 select CPU_SUPPORTS_HIGHMEM
1140 help
1141 Choose this option to build a kernel for release 2 or later of the
1142 MIPS32 architecture. Most modern embedded systems with a 32-bit
1143 MIPS processor are based on a MIPS32 processor. If you know the
1144 specific type of processor in your system, choose those that one
1145 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1146
1147config CPU_MIPS64_R1
1148 bool "MIPS64 Release 1"
1149 depends on SYS_HAS_CPU_MIPS64_R1
1150 select CPU_HAS_PREFETCH
1151 select CPU_SUPPORTS_32BIT_KERNEL
1152 select CPU_SUPPORTS_64BIT_KERNEL
1153 select CPU_SUPPORTS_HIGHMEM
1154 select CPU_SUPPORTS_HUGEPAGES
1155 help
1156 Choose this option to build a kernel for release 1 or later of the
1157 MIPS64 architecture. Many modern embedded systems with a 64-bit
1158 MIPS processor are based on a MIPS64 processor. If you know the
1159 specific type of processor in your system, choose those that one
1160 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1161 Release 2 of the MIPS64 architecture is available since several
1162 years so chances are you even have a MIPS64 Release 2 processor
1163 in which case you should choose CPU_MIPS64_R2 instead for better
1164 performance.
1165
1166config CPU_MIPS64_R2
1167 bool "MIPS64 Release 2"
1168 depends on SYS_HAS_CPU_MIPS64_R2
1169 select CPU_HAS_PREFETCH
1170 select CPU_SUPPORTS_32BIT_KERNEL
1171 select CPU_SUPPORTS_64BIT_KERNEL
1172 select CPU_SUPPORTS_HIGHMEM
1173 select CPU_SUPPORTS_HUGEPAGES
1174 help
1175 Choose this option to build a kernel for release 2 or later of the
1176 MIPS64 architecture. Many modern embedded systems with a 64-bit
1177 MIPS processor are based on a MIPS64 processor. If you know the
1178 specific type of processor in your system, choose those that one
1179 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1180
1181config CPU_R3000
1182 bool "R3000"
1183 depends on SYS_HAS_CPU_R3000
1184 select CPU_HAS_WB
1185 select CPU_SUPPORTS_32BIT_KERNEL
1186 select CPU_SUPPORTS_HIGHMEM
1187 help
1188 Please make sure to pick the right CPU type. Linux/MIPS is not
1189 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1190 *not* work on R4000 machines and vice versa. However, since most
1191 of the supported machines have an R4000 (or similar) CPU, R4x00
1192 might be a safe bet. If the resulting kernel does not work,
1193 try to recompile with R3000.
1194
1195config CPU_TX39XX
1196 bool "R39XX"
1197 depends on SYS_HAS_CPU_TX39XX
1198 select CPU_SUPPORTS_32BIT_KERNEL
1199
1200config CPU_VR41XX
1201 bool "R41xx"
1202 depends on SYS_HAS_CPU_VR41XX
1203 select CPU_SUPPORTS_32BIT_KERNEL
1204 select CPU_SUPPORTS_64BIT_KERNEL
1205 help
1206 The options selects support for the NEC VR4100 series of processors.
1207 Only choose this option if you have one of these processors as a
1208 kernel built with this option will not run on any other type of
1209 processor or vice versa.
1210
1211config CPU_R4300
1212 bool "R4300"
1213 depends on SYS_HAS_CPU_R4300
1214 select CPU_SUPPORTS_32BIT_KERNEL
1215 select CPU_SUPPORTS_64BIT_KERNEL
1216 help
1217 MIPS Technologies R4300-series processors.
1218
1219config CPU_R4X00
1220 bool "R4x00"
1221 depends on SYS_HAS_CPU_R4X00
1222 select CPU_SUPPORTS_32BIT_KERNEL
1223 select CPU_SUPPORTS_64BIT_KERNEL
1224 help
1225 MIPS Technologies R4000-series processors other than 4300, including
1226 the R4000, R4400, R4600, and 4700.
1227
1228config CPU_TX49XX
1229 bool "R49XX"
1230 depends on SYS_HAS_CPU_TX49XX
1231 select CPU_HAS_PREFETCH
1232 select CPU_SUPPORTS_32BIT_KERNEL
1233 select CPU_SUPPORTS_64BIT_KERNEL
1234
1235config CPU_R5000
1236 bool "R5000"
1237 depends on SYS_HAS_CPU_R5000
1238 select CPU_SUPPORTS_32BIT_KERNEL
1239 select CPU_SUPPORTS_64BIT_KERNEL
1240 help
1241 MIPS Technologies R5000-series processors other than the Nevada.
1242
1243config CPU_R5432
1244 bool "R5432"
1245 depends on SYS_HAS_CPU_R5432
1246 select CPU_SUPPORTS_32BIT_KERNEL
1247 select CPU_SUPPORTS_64BIT_KERNEL
1248
1249config CPU_R5500
1250 bool "R5500"
1251 depends on SYS_HAS_CPU_R5500
1252 select CPU_SUPPORTS_32BIT_KERNEL
1253 select CPU_SUPPORTS_64BIT_KERNEL
1254 select CPU_SUPPORTS_HUGEPAGES
1255 help
1256 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1257 instruction set.
1258
1259config CPU_R6000
1260 bool "R6000"
1261 depends on EXPERIMENTAL
1262 depends on SYS_HAS_CPU_R6000
1263 select CPU_SUPPORTS_32BIT_KERNEL
1264 help
1265 MIPS Technologies R6000 and R6000A series processors. Note these
1266 processors are extremely rare and the support for them is incomplete.
1267
1268config CPU_NEVADA
1269 bool "RM52xx"
1270 depends on SYS_HAS_CPU_NEVADA
1271 select CPU_SUPPORTS_32BIT_KERNEL
1272 select CPU_SUPPORTS_64BIT_KERNEL
1273 help
1274 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1275
1276config CPU_R8000
1277 bool "R8000"
1278 depends on EXPERIMENTAL
1279 depends on SYS_HAS_CPU_R8000
1280 select CPU_HAS_PREFETCH
1281 select CPU_SUPPORTS_64BIT_KERNEL
1282 help
1283 MIPS Technologies R8000 processors. Note these processors are
1284 uncommon and the support for them is incomplete.
1285
1286config CPU_R10000
1287 bool "R10000"
1288 depends on SYS_HAS_CPU_R10000
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 select CPU_SUPPORTS_HIGHMEM
1293 help
1294 MIPS Technologies R10000-series processors.
1295
1296config CPU_RM7000
1297 bool "RM7000"
1298 depends on SYS_HAS_CPU_RM7000
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1303
1304config CPU_RM9000
1305 bool "RM9000"
1306 depends on SYS_HAS_CPU_RM9000
1307 select CPU_HAS_PREFETCH
1308 select CPU_SUPPORTS_32BIT_KERNEL
1309 select CPU_SUPPORTS_64BIT_KERNEL
1310 select CPU_SUPPORTS_HIGHMEM
1311 select WEAK_ORDERING
1312
1313config CPU_SB1
1314 bool "SB1"
1315 depends on SYS_HAS_CPU_SB1
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1318 select CPU_SUPPORTS_HIGHMEM
1319 select WEAK_ORDERING
1320
1321config CPU_CAVIUM_OCTEON
1322 bool "Cavium Octeon processor"
1323 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1324 select IRQ_CPU
1325 select IRQ_CPU_OCTEON
1326 select CPU_HAS_PREFETCH
1327 select CPU_SUPPORTS_64BIT_KERNEL
1328 select SYS_SUPPORTS_SMP
1329 select NR_CPUS_DEFAULT_16
1330 select WEAK_ORDERING
1331 select WEAK_REORDERING_BEYOND_LLSC
1332 select CPU_SUPPORTS_HIGHMEM
1333 select CPU_SUPPORTS_HUGEPAGES
1334 help
1335 The Cavium Octeon processor is a highly integrated chip containing
1336 many ethernet hardware widgets for networking tasks. The processor
1337 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1338 Full details can be found at http://www.caviumnetworks.com.
1339
1340endchoice
1341
1342config SYS_SUPPORTS_ZBOOT
1343 bool
1344 select HAVE_KERNEL_GZIP
1345 select HAVE_KERNEL_BZIP2
1346 select HAVE_KERNEL_LZMA
1347
1348config SYS_SUPPORTS_ZBOOT_UART16550
1349 bool
1350 select SYS_SUPPORTS_ZBOOT
1351
1352config CPU_LOONGSON2
1353 bool
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HIGHMEM
1357
1358config SYS_HAS_CPU_LOONGSON2E
1359 bool
1360
1361config SYS_HAS_CPU_LOONGSON2F
1362 bool
1363 select CPU_SUPPORTS_CPUFREQ
1364 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1365 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1366
1367config SYS_HAS_CPU_MIPS32_R1
1368 bool
1369
1370config SYS_HAS_CPU_MIPS32_R2
1371 bool
1372
1373config SYS_HAS_CPU_MIPS64_R1
1374 bool
1375
1376config SYS_HAS_CPU_MIPS64_R2
1377 bool
1378
1379config SYS_HAS_CPU_R3000
1380 bool
1381
1382config SYS_HAS_CPU_TX39XX
1383 bool
1384
1385config SYS_HAS_CPU_VR41XX
1386 bool
1387
1388config SYS_HAS_CPU_R4300
1389 bool
1390
1391config SYS_HAS_CPU_R4X00
1392 bool
1393
1394config SYS_HAS_CPU_TX49XX
1395 bool
1396
1397config SYS_HAS_CPU_R5000
1398 bool
1399
1400config SYS_HAS_CPU_R5432
1401 bool
1402
1403config SYS_HAS_CPU_R5500
1404 bool
1405
1406config SYS_HAS_CPU_R6000
1407 bool
1408
1409config SYS_HAS_CPU_NEVADA
1410 bool
1411
1412config SYS_HAS_CPU_R8000
1413 bool
1414
1415config SYS_HAS_CPU_R10000
1416 bool
1417
1418config SYS_HAS_CPU_RM7000
1419 bool
1420
1421config SYS_HAS_CPU_RM9000
1422 bool
1423
1424config SYS_HAS_CPU_SB1
1425 bool
1426
1427config SYS_HAS_CPU_CAVIUM_OCTEON
1428 bool
1429
1430#
1431# CPU may reorder R->R, R->W, W->R, W->W
1432# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1433#
1434config WEAK_ORDERING
1435 bool
1436
1437#
1438# CPU may reorder reads and writes beyond LL/SC
1439# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1440#
1441config WEAK_REORDERING_BEYOND_LLSC
1442 bool
1443endmenu
1444
1445#
1446# These two indicate any level of the MIPS32 and MIPS64 architecture
1447#
1448config CPU_MIPS32
1449 bool
1450 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1451
1452config CPU_MIPS64
1453 bool
1454 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1455
1456#
1457# These two indicate the revision of the architecture, either Release 1 or Release 2
1458#
1459config CPU_MIPSR1
1460 bool
1461 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1462
1463config CPU_MIPSR2
1464 bool
1465 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1466
1467config SYS_SUPPORTS_32BIT_KERNEL
1468 bool
1469config SYS_SUPPORTS_64BIT_KERNEL
1470 bool
1471config CPU_SUPPORTS_32BIT_KERNEL
1472 bool
1473config CPU_SUPPORTS_64BIT_KERNEL
1474 bool
1475config CPU_SUPPORTS_CPUFREQ
1476 bool
1477config CPU_SUPPORTS_ADDRWINCFG
1478 bool
1479config CPU_SUPPORTS_HUGEPAGES
1480 bool
1481config CPU_SUPPORTS_UNCACHED_ACCELERATED
1482 bool
1483config MIPS_PGD_C0_CONTEXT
1484 bool
1485 default y if 64BIT && CPU_MIPSR2
1486
1487#
1488# Set to y for ptrace access to watch registers.
1489#
1490config HARDWARE_WATCHPOINTS
1491 bool
1492 default y if CPU_MIPSR1 || CPU_MIPSR2
1493
1494menu "Kernel type"
1495
1496choice
1497
1498 prompt "Kernel code model"
1499 help
1500 You should only select this option if you have a workload that
1501 actually benefits from 64-bit processing or if your machine has
1502 large memory. You will only be presented a single option in this
1503 menu if your system does not support both 32-bit and 64-bit kernels.
1504
1505config 32BIT
1506 bool "32-bit kernel"
1507 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1508 select TRAD_SIGNALS
1509 help
1510 Select this option if you want to build a 32-bit kernel.
1511config 64BIT
1512 bool "64-bit kernel"
1513 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1514 select HAVE_SYSCALL_WRAPPERS
1515 help
1516 Select this option if you want to build a 64-bit kernel.
1517
1518endchoice
1519
1520choice
1521 prompt "Kernel page size"
1522 default PAGE_SIZE_4KB
1523
1524config PAGE_SIZE_4KB
1525 bool "4kB"
1526 depends on !CPU_LOONGSON2
1527 help
1528 This option select the standard 4kB Linux page size. On some
1529 R3000-family processors this is the only available page size. Using
1530 4kB page size will minimize memory consumption and is therefore
1531 recommended for low memory systems.
1532
1533config PAGE_SIZE_8KB
1534 bool "8kB"
1535 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1536 help
1537 Using 8kB page size will result in higher performance kernel at
1538 the price of higher memory consumption. This option is available
1539 only on R8000 and cnMIPS processors. Note that you will need a
1540 suitable Linux distribution to support this.
1541
1542config PAGE_SIZE_16KB
1543 bool "16kB"
1544 depends on !CPU_R3000 && !CPU_TX39XX
1545 help
1546 Using 16kB page size will result in higher performance kernel at
1547 the price of higher memory consumption. This option is available on
1548 all non-R3000 family processors. Note that you will need a suitable
1549 Linux distribution to support this.
1550
1551config PAGE_SIZE_32KB
1552 bool "32kB"
1553 depends on CPU_CAVIUM_OCTEON
1554 help
1555 Using 32kB page size will result in higher performance kernel at
1556 the price of higher memory consumption. This option is available
1557 only on cnMIPS cores. Note that you will need a suitable Linux
1558 distribution to support this.
1559
1560config PAGE_SIZE_64KB
1561 bool "64kB"
1562 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1563 help
1564 Using 64kB page size will result in higher performance kernel at
1565 the price of higher memory consumption. This option is available on
1566 all non-R3000 family processor. Not that at the time of this
1567 writing this option is still high experimental.
1568
1569endchoice
1570
1571config BOARD_SCACHE
1572 bool
1573
1574config IP22_CPU_SCACHE
1575 bool
1576 select BOARD_SCACHE
1577
1578#
1579# Support for a MIPS32 / MIPS64 style S-caches
1580#
1581config MIPS_CPU_SCACHE
1582 bool
1583 select BOARD_SCACHE
1584
1585config R5000_CPU_SCACHE
1586 bool
1587 select BOARD_SCACHE
1588
1589config RM7000_CPU_SCACHE
1590 bool
1591 select BOARD_SCACHE
1592
1593config SIBYTE_DMA_PAGEOPS
1594 bool "Use DMA to clear/copy pages"
1595 depends on CPU_SB1
1596 help
1597 Instead of using the CPU to zero and copy pages, use a Data Mover
1598 channel. These DMA channels are otherwise unused by the standard
1599 SiByte Linux port. Seems to give a small performance benefit.
1600
1601config CPU_HAS_PREFETCH
1602 bool
1603
1604choice
1605 prompt "MIPS MT options"
1606
1607config MIPS_MT_DISABLED
1608 bool "Disable multithreading support."
1609 help
1610 Use this option if your workload can't take advantage of
1611 MIPS hardware multithreading support. On systems that don't have
1612 the option of an MT-enabled processor this option will be the only
1613 option in this menu.
1614
1615config MIPS_MT_SMP
1616 bool "Use 1 TC on each available VPE for SMP"
1617 depends on SYS_SUPPORTS_MULTITHREADING
1618 select CPU_MIPSR2_IRQ_VI
1619 select CPU_MIPSR2_IRQ_EI
1620 select MIPS_MT
1621 select NR_CPUS_DEFAULT_2
1622 select SMP
1623 select SYS_SUPPORTS_SCHED_SMT if SMP
1624 select SYS_SUPPORTS_SMP
1625 select SMP_UP
1626 help
1627 This is a kernel model which is also known a VSMP or lately
1628 has been marketesed into SMVP.
1629
1630config MIPS_MT_SMTC
1631 bool "SMTC: Use all TCs on all VPEs for SMP"
1632 depends on CPU_MIPS32_R2
1633 #depends on CPU_MIPS64_R2 # once there is hardware ...
1634 depends on SYS_SUPPORTS_MULTITHREADING
1635 select CPU_MIPSR2_IRQ_VI
1636 select CPU_MIPSR2_IRQ_EI
1637 select MIPS_MT
1638 select NR_CPUS_DEFAULT_8
1639 select SMP
1640 select SYS_SUPPORTS_SMP
1641 select SMP_UP
1642 help
1643 This is a kernel model which is known a SMTC or lately has been
1644 marketesed into SMVP.
1645
1646endchoice
1647
1648config MIPS_MT
1649 bool
1650
1651config SCHED_SMT
1652 bool "SMT (multithreading) scheduler support"
1653 depends on SYS_SUPPORTS_SCHED_SMT
1654 default n
1655 help
1656 SMT scheduler support improves the CPU scheduler's decision making
1657 when dealing with MIPS MT enabled cores at a cost of slightly
1658 increased overhead in some places. If unsure say N here.
1659
1660config SYS_SUPPORTS_SCHED_SMT
1661 bool
1662
1663
1664config SYS_SUPPORTS_MULTITHREADING
1665 bool
1666
1667config MIPS_MT_FPAFF
1668 bool "Dynamic FPU affinity for FP-intensive threads"
1669 default y
1670 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1671
1672config MIPS_VPE_LOADER
1673 bool "VPE loader support."
1674 depends on SYS_SUPPORTS_MULTITHREADING
1675 select CPU_MIPSR2_IRQ_VI
1676 select CPU_MIPSR2_IRQ_EI
1677 select MIPS_MT
1678 help
1679 Includes a loader for loading an elf relocatable object
1680 onto another VPE and running it.
1681
1682config MIPS_MT_SMTC_IM_BACKSTOP
1683 bool "Use per-TC register bits as backstop for inhibited IM bits"
1684 depends on MIPS_MT_SMTC
1685 default n
1686 help
1687 To support multiple TC microthreads acting as "CPUs" within
1688 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1689 during interrupt handling. To support legacy drivers and interrupt
1690 controller management code, SMTC has a "backstop" to track and
1691 if necessary restore the interrupt mask. This has some performance
1692 impact on interrupt service overhead.
1693
1694config MIPS_MT_SMTC_IRQAFF
1695 bool "Support IRQ affinity API"
1696 depends on MIPS_MT_SMTC
1697 default n
1698 help
1699 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1700 for SMTC Linux kernel. Requires platform support, of which
1701 an example can be found in the MIPS kernel i8259 and Malta
1702 platform code. Adds some overhead to interrupt dispatch, and
1703 should be used only if you know what you are doing.
1704
1705config MIPS_VPE_LOADER_TOM
1706 bool "Load VPE program into memory hidden from linux"
1707 depends on MIPS_VPE_LOADER
1708 default y
1709 help
1710 The loader can use memory that is present but has been hidden from
1711 Linux using the kernel command line option "mem=xxMB". It's up to
1712 you to ensure the amount you put in the option and the space your
1713 program requires is less or equal to the amount physically present.
1714
1715# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1716config MIPS_VPE_APSP_API
1717 bool "Enable support for AP/SP API (RTLX)"
1718 depends on MIPS_VPE_LOADER
1719 help
1720
1721config MIPS_APSP_KSPD
1722 bool "Enable KSPD"
1723 depends on MIPS_VPE_APSP_API
1724 default y
1725 help
1726 KSPD is a kernel daemon that accepts syscall requests from the SP
1727 side, actions them and returns the results. It also handles the
1728 "exit" syscall notifying other kernel modules the SP program is
1729 exiting. You probably want to say yes here.
1730
1731config MIPS_CMP
1732 bool "MIPS CMP framework support"
1733 depends on SYS_SUPPORTS_MIPS_CMP
1734 select SYNC_R4K
1735 select SYS_SUPPORTS_SMP
1736 select SYS_SUPPORTS_SCHED_SMT if SMP
1737 select WEAK_ORDERING
1738 default n
1739 help
1740 This is a placeholder option for the GCMP work. It will need to
1741 be handled differently...
1742
1743config SB1_PASS_1_WORKAROUNDS
1744 bool
1745 depends on CPU_SB1_PASS_1
1746 default y
1747
1748config SB1_PASS_2_WORKAROUNDS
1749 bool
1750 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1751 default y
1752
1753config SB1_PASS_2_1_WORKAROUNDS
1754 bool
1755 depends on CPU_SB1 && CPU_SB1_PASS_2
1756 default y
1757
1758config 64BIT_PHYS_ADDR
1759 bool
1760
1761config CPU_HAS_SMARTMIPS
1762 depends on SYS_SUPPORTS_SMARTMIPS
1763 bool "Support for the SmartMIPS ASE"
1764 help
1765 SmartMIPS is a extension of the MIPS32 architecture aimed at
1766 increased security at both hardware and software level for
1767 smartcards. Enabling this option will allow proper use of the
1768 SmartMIPS instructions by Linux applications. However a kernel with
1769 this option will not work on a MIPS core without SmartMIPS core. If
1770 you don't know you probably don't have SmartMIPS and should say N
1771 here.
1772
1773config CPU_HAS_WB
1774 bool
1775
1776#
1777# Vectored interrupt mode is an R2 feature
1778#
1779config CPU_MIPSR2_IRQ_VI
1780 bool
1781
1782#
1783# Extended interrupt mode is an R2 feature
1784#
1785config CPU_MIPSR2_IRQ_EI
1786 bool
1787
1788config CPU_HAS_SYNC
1789 bool
1790 depends on !CPU_R3000
1791 default y
1792
1793config GENERIC_CLOCKEVENTS_BROADCAST
1794 bool
1795
1796#
1797# CPU non-features
1798#
1799config CPU_DADDI_WORKAROUNDS
1800 bool
1801
1802config CPU_R4000_WORKAROUNDS
1803 bool
1804 select CPU_R4400_WORKAROUNDS
1805
1806config CPU_R4400_WORKAROUNDS
1807 bool
1808
1809#
1810# Use the generic interrupt handling code in kernel/irq/:
1811#
1812config GENERIC_HARDIRQS
1813 bool
1814 default y
1815
1816config GENERIC_IRQ_PROBE
1817 bool
1818 default y
1819
1820config IRQ_PER_CPU
1821 bool
1822
1823#
1824# - Highmem only makes sense for the 32-bit kernel.
1825# - The current highmem code will only work properly on physically indexed
1826# caches such as R3000, SB1, R7000 or those that look like they're virtually
1827# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1828# moment we protect the user and offer the highmem option only on machines
1829# where it's known to be safe. This will not offer highmem on a few systems
1830# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1831# indexed CPUs but we're playing safe.
1832# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1833# know they might have memory configurations that could make use of highmem
1834# support.
1835#
1836config HIGHMEM
1837 bool "High Memory Support"
1838 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1839
1840config CPU_SUPPORTS_HIGHMEM
1841 bool
1842
1843config SYS_SUPPORTS_HIGHMEM
1844 bool
1845
1846config SYS_SUPPORTS_SMARTMIPS
1847 bool
1848
1849config ARCH_FLATMEM_ENABLE
1850 def_bool y
1851 depends on !NUMA && !CPU_LOONGSON2
1852
1853config ARCH_DISCONTIGMEM_ENABLE
1854 bool
1855 default y if SGI_IP27
1856 help
1857 Say Y to support efficient handling of discontiguous physical memory,
1858 for architectures which are either NUMA (Non-Uniform Memory Access)
1859 or have huge holes in the physical address space for other reasons.
1860 See <file:Documentation/vm/numa> for more.
1861
1862config ARCH_POPULATES_NODE_MAP
1863 def_bool y
1864
1865config ARCH_SPARSEMEM_ENABLE
1866 bool
1867 select SPARSEMEM_STATIC
1868
1869config NUMA
1870 bool "NUMA Support"
1871 depends on SYS_SUPPORTS_NUMA
1872 help
1873 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
1874 Access). This option improves performance on systems with more
1875 than two nodes; on two node systems it is generally better to
1876 leave it disabled; on single node systems disable this option
1877 disabled.
1878
1879config SYS_SUPPORTS_NUMA
1880 bool
1881
1882config NODES_SHIFT
1883 int
1884 default "6"
1885 depends on NEED_MULTIPLE_NODES
1886
1887source "mm/Kconfig"
1888
1889config SMP
1890 bool "Multi-Processing support"
1891 depends on SYS_SUPPORTS_SMP
1892 select IRQ_PER_CPU
1893 select USE_GENERIC_SMP_HELPERS
1894 help
1895 This enables support for systems with more than one CPU. If you have
1896 a system with only one CPU, like most personal computers, say N. If
1897 you have a system with more than one CPU, say Y.
1898
1899 If you say N here, the kernel will run on single and multiprocessor
1900 machines, but will use only one CPU of a multiprocessor machine. If
1901 you say Y here, the kernel will run on many, but not all,
1902 singleprocessor machines. On a singleprocessor machine, the kernel
1903 will run faster if you say N here.
1904
1905 People using multiprocessor machines who say Y here should also say
1906 Y to "Enhanced Real Time Clock Support", below.
1907
1908 See also the SMP-HOWTO available at
1909 <http://www.tldp.org/docs.html#howto>.
1910
1911 If you don't know what to do here, say N.
1912
1913config SMP_UP
1914 bool
1915
1916config SYS_SUPPORTS_MIPS_CMP
1917 bool
1918
1919config SYS_SUPPORTS_SMP
1920 bool
1921
1922config NR_CPUS_DEFAULT_1
1923 bool
1924
1925config NR_CPUS_DEFAULT_2
1926 bool
1927
1928config NR_CPUS_DEFAULT_4
1929 bool
1930
1931config NR_CPUS_DEFAULT_8
1932 bool
1933
1934config NR_CPUS_DEFAULT_16
1935 bool
1936
1937config NR_CPUS_DEFAULT_32
1938 bool
1939
1940config NR_CPUS_DEFAULT_64
1941 bool
1942
1943config NR_CPUS
1944 int "Maximum number of CPUs (2-64)"
1945 range 1 64 if NR_CPUS_DEFAULT_1
1946 depends on SMP
1947 default "1" if NR_CPUS_DEFAULT_1
1948 default "2" if NR_CPUS_DEFAULT_2
1949 default "4" if NR_CPUS_DEFAULT_4
1950 default "8" if NR_CPUS_DEFAULT_8
1951 default "16" if NR_CPUS_DEFAULT_16
1952 default "32" if NR_CPUS_DEFAULT_32
1953 default "64" if NR_CPUS_DEFAULT_64
1954 help
1955 This allows you to specify the maximum number of CPUs which this
1956 kernel will support. The maximum supported value is 32 for 32-bit
1957 kernel and 64 for 64-bit kernels; the minimum value which makes
1958 sense is 1 for Qemu (useful only for kernel debugging purposes)
1959 and 2 for all others.
1960
1961 This is purely to save memory - each supported CPU adds
1962 approximately eight kilobytes to the kernel image. For best
1963 performance should round up your number of processors to the next
1964 power of two.
1965
1966source "kernel/time/Kconfig"
1967
1968#
1969# Timer Interrupt Frequency Configuration
1970#
1971
1972choice
1973 prompt "Timer frequency"
1974 default HZ_250
1975 help
1976 Allows the configuration of the timer frequency.
1977
1978 config HZ_48
1979 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
1980
1981 config HZ_100
1982 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
1983
1984 config HZ_128
1985 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
1986
1987 config HZ_250
1988 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
1989
1990 config HZ_256
1991 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
1992
1993 config HZ_1000
1994 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
1995
1996 config HZ_1024
1997 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
1998
1999endchoice
2000
2001config SYS_SUPPORTS_48HZ
2002 bool
2003
2004config SYS_SUPPORTS_100HZ
2005 bool
2006
2007config SYS_SUPPORTS_128HZ
2008 bool
2009
2010config SYS_SUPPORTS_250HZ
2011 bool
2012
2013config SYS_SUPPORTS_256HZ
2014 bool
2015
2016config SYS_SUPPORTS_1000HZ
2017 bool
2018
2019config SYS_SUPPORTS_1024HZ
2020 bool
2021
2022config SYS_SUPPORTS_ARBIT_HZ
2023 bool
2024 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2025 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2026 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2027 !SYS_SUPPORTS_1024HZ
2028
2029config HZ
2030 int
2031 default 48 if HZ_48
2032 default 100 if HZ_100
2033 default 128 if HZ_128
2034 default 250 if HZ_250
2035 default 256 if HZ_256
2036 default 1000 if HZ_1000
2037 default 1024 if HZ_1024
2038
2039source "kernel/Kconfig.preempt"
2040
2041config MIPS_INSANE_LARGE
2042 bool "Support for large 64-bit configurations"
2043 depends on CPU_R10000 && 64BIT
2044 help
2045 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2046 previous 64-bit processors which only supported 40 bit / 1TB. If you
2047 need processes of more than 1TB virtual address space, say Y here.
2048 This will result in additional memory usage, so it is not
2049 recommended for normal users.
2050
2051config KEXEC
2052 bool "Kexec system call (EXPERIMENTAL)"
2053 depends on EXPERIMENTAL
2054 help
2055 kexec is a system call that implements the ability to shutdown your
2056 current kernel, and to start another kernel. It is like a reboot
2057 but it is independent of the system firmware. And like a reboot
2058 you can start any kernel with it, not just Linux.
2059
2060 The name comes from the similarity to the exec system call.
2061
2062 It is an ongoing process to be certain the hardware in a machine
2063 is properly shutdown, so do not be surprised if this code does not
2064 initially work for you. It may help to enable device hotplugging
2065 support. As of this writing the exact hardware interface is
2066 strongly in flux, so no good recommendation can be made.
2067
2068config SECCOMP
2069 bool "Enable seccomp to safely compute untrusted bytecode"
2070 depends on PROC_FS
2071 default y
2072 help
2073 This kernel feature is useful for number crunching applications
2074 that may need to compute untrusted bytecode during their
2075 execution. By using pipes or other transports made available to
2076 the process as file descriptors supporting the read/write
2077 syscalls, it's possible to isolate those applications in
2078 their own address space using seccomp. Once seccomp is
2079 enabled via /proc/<pid>/seccomp, it cannot be disabled
2080 and the task is only allowed to execute a few safe syscalls
2081 defined by each seccomp mode.
2082
2083 If unsure, say Y. Only embedded should say N here.
2084
2085endmenu
2086
2087config LOCKDEP_SUPPORT
2088 bool
2089 default y
2090
2091config STACKTRACE_SUPPORT
2092 bool
2093 default y
2094
2095source "init/Kconfig"
2096
2097source "kernel/Kconfig.freezer"
2098
2099menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2100
2101config HW_HAS_EISA
2102 bool
2103config HW_HAS_PCI
2104 bool
2105
2106config PCI
2107 bool "Support for PCI controller"
2108 depends on HW_HAS_PCI
2109 select PCI_DOMAINS
2110 help
2111 Find out whether you have a PCI motherboard. PCI is the name of a
2112 bus system, i.e. the way the CPU talks to the other stuff inside
2113 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2114 say Y, otherwise N.
2115
2116config PCI_DOMAINS
2117 bool
2118
2119source "drivers/pci/Kconfig"
2120
2121#
2122# ISA support is now enabled via select. Too many systems still have the one
2123# or other ISA chip on the board that users don't know about so don't expect
2124# users to choose the right thing ...
2125#
2126config ISA
2127 bool
2128
2129config EISA
2130 bool "EISA support"
2131 depends on HW_HAS_EISA
2132 select ISA
2133 select GENERIC_ISA_DMA
2134 ---help---
2135 The Extended Industry Standard Architecture (EISA) bus was
2136 developed as an open alternative to the IBM MicroChannel bus.
2137
2138 The EISA bus provided some of the features of the IBM MicroChannel
2139 bus while maintaining backward compatibility with cards made for
2140 the older ISA bus. The EISA bus saw limited use between 1988 and
2141 1995 when it was made obsolete by the PCI bus.
2142
2143 Say Y here if you are building a kernel for an EISA-based machine.
2144
2145 Otherwise, say N.
2146
2147source "drivers/eisa/Kconfig"
2148
2149config TC
2150 bool "TURBOchannel support"
2151 depends on MACH_DECSTATION
2152 help
2153 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2154 processors. Documentation on writing device drivers for TurboChannel
2155 is available at:
2156 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
2157
2158#config ACCESSBUS
2159# bool "Access.Bus support"
2160# depends on TC
2161
2162config MMU
2163 bool
2164 default y
2165
2166config I8253
2167 bool
2168 select MIPS_EXTERNAL_TIMER
2169
2170config ZONE_DMA32
2171 bool
2172
2173source "drivers/pcmcia/Kconfig"
2174
2175source "drivers/pci/hotplug/Kconfig"
2176
2177endmenu
2178
2179menu "Executable file formats"
2180
2181source "fs/Kconfig.binfmt"
2182
2183config TRAD_SIGNALS
2184 bool
2185
2186config MIPS32_COMPAT
2187 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2188 depends on 64BIT
2189 help
2190 Select this option if you want Linux/MIPS 32-bit binary
2191 compatibility. Since all software available for Linux/MIPS is
2192 currently 32-bit you should say Y here.
2193
2194config COMPAT
2195 bool
2196 depends on MIPS32_COMPAT
2197 default y
2198
2199config SYSVIPC_COMPAT
2200 bool
2201 depends on COMPAT && SYSVIPC
2202 default y
2203
2204config MIPS32_O32
2205 bool "Kernel support for o32 binaries"
2206 depends on MIPS32_COMPAT
2207 help
2208 Select this option if you want to run o32 binaries. These are pure
2209 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2210 existing binaries are in this format.
2211
2212 If unsure, say Y.
2213
2214config MIPS32_N32
2215 bool "Kernel support for n32 binaries"
2216 depends on MIPS32_COMPAT
2217 help
2218 Select this option if you want to run n32 binaries. These are
2219 64-bit binaries using 32-bit quantities for addressing and certain
2220 data that would normally be 64-bit. They are used in special
2221 cases.
2222
2223 If unsure, say N.
2224
2225config BINFMT_ELF32
2226 bool
2227 default y if MIPS32_O32 || MIPS32_N32
2228
2229endmenu
2230
2231menu "Power management options"
2232
2233config ARCH_HIBERNATION_POSSIBLE
2234 def_bool y
2235 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2236
2237config ARCH_SUSPEND_POSSIBLE
2238 def_bool y
2239 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2240
2241source "kernel/power/Kconfig"
2242
2243endmenu
2244
2245source "arch/mips/kernel/cpufreq/Kconfig"
2246
2247source "net/Kconfig"
2248
2249source "drivers/Kconfig"
2250
2251source "fs/Kconfig"
2252
2253source "arch/mips/Kconfig.debug"
2254
2255source "security/Kconfig"
2256
2257source "crypto/Kconfig"
2258
2259source "lib/Kconfig"