Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select HAVE_GENERIC_DMA_COHERENT
5 select HAVE_IDE
6 select HAVE_OPROFILE
7 select HAVE_IRQ_WORK
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
10 select HAVE_ARCH_KGDB
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
17 select HAVE_KPROBES
18 select HAVE_KRETPROBES
19 select RTC_LIB if !MACH_LOONGSON
20 select GENERIC_ATOMIC64 if !64BIT
21 select HAVE_DMA_ATTRS
22 select HAVE_DMA_API_DEBUG
23 select HAVE_GENERIC_HARDIRQS
24 select GENERIC_IRQ_PROBE
25 select HAVE_ARCH_JUMP_LABEL
26
27 menu "Machine selection"
28
29 config ZONE_DMA
30 bool
31
32 choice
33 prompt "System type"
34 default SGI_IP22
35
36 config MIPS_ALCHEMY
37 bool "Alchemy processor based machines"
38 select 64BIT_PHYS_ADDR
39 select CEVT_R4K_LIB
40 select CSRC_R4K_LIB
41 select IRQ_CPU
42 select SYS_HAS_CPU_MIPS32_R1
43 select SYS_SUPPORTS_32BIT_KERNEL
44 select SYS_SUPPORTS_APM_EMULATION
45 select GENERIC_GPIO
46 select ARCH_WANT_OPTIONAL_GPIOLIB
47 select SYS_SUPPORTS_ZBOOT
48
49 config AR7
50 bool "Texas Instruments AR7"
51 select BOOT_ELF32
52 select DMA_NONCOHERENT
53 select CEVT_R4K
54 select CSRC_R4K
55 select IRQ_CPU
56 select NO_EXCEPT_FILL
57 select SWAP_IO_SPACE
58 select SYS_HAS_CPU_MIPS32_R1
59 select SYS_HAS_EARLY_PRINTK
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_LITTLE_ENDIAN
62 select SYS_SUPPORTS_ZBOOT_UART16550
63 select ARCH_REQUIRE_GPIOLIB
64 select GCD
65 select VLYNQ
66 help
67 Support for the Texas Instruments AR7 System-on-a-Chip
68 family: TNETD7100, 7200 and 7300.
69
70 config ATH79
71 bool "Atheros AR71XX/AR724X/AR913X based boards"
72 select ARCH_REQUIRE_GPIOLIB
73 select BOOT_RAW
74 select CEVT_R4K
75 select CSRC_R4K
76 select DMA_NONCOHERENT
77 select IRQ_CPU
78 select MIPS_MACHINE
79 select SYS_HAS_CPU_MIPS32_R2
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_BIG_ENDIAN
83 help
84 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
85
86 config BCM47XX
87 bool "Broadcom BCM47XX based boards"
88 select CEVT_R4K
89 select CSRC_R4K
90 select DMA_NONCOHERENT
91 select HW_HAS_PCI
92 select IRQ_CPU
93 select SYS_HAS_CPU_MIPS32_R1
94 select SYS_SUPPORTS_32BIT_KERNEL
95 select SYS_SUPPORTS_LITTLE_ENDIAN
96 select SSB
97 select SSB_DRIVER_MIPS
98 select SSB_DRIVER_EXTIF
99 select SSB_EMBEDDED
100 select SSB_B43_PCI_BRIDGE if PCI
101 select SSB_PCICORE_HOSTMODE if PCI
102 select GENERIC_GPIO
103 select SYS_HAS_EARLY_PRINTK
104 select CFE
105 help
106 Support for BCM47XX based boards
107
108 config BCM63XX
109 bool "Broadcom BCM63XX based boards"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_CPU
114 select SYS_HAS_CPU_MIPS32_R1
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_HAS_EARLY_PRINTK
118 select SWAP_IO_SPACE
119 select ARCH_REQUIRE_GPIOLIB
120 help
121 Support for BCM63XX based boards
122
123 config MIPS_COBALT
124 bool "Cobalt Server"
125 select CEVT_R4K
126 select CSRC_R4K
127 select CEVT_GT641XX
128 select DMA_NONCOHERENT
129 select HW_HAS_PCI
130 select I8253
131 select I8259
132 select IRQ_CPU
133 select IRQ_GT641XX
134 select PCI_GT64XXX_PCI0
135 select PCI
136 select SYS_HAS_CPU_NEVADA
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_64BIT_KERNEL
140 select SYS_SUPPORTS_LITTLE_ENDIAN
141
142 config MACH_DECSTATION
143 bool "DECstations"
144 select BOOT_ELF32
145 select CEVT_DS1287
146 select CEVT_R4K
147 select CSRC_IOASIC
148 select CSRC_R4K
149 select CPU_DADDI_WORKAROUNDS if 64BIT
150 select CPU_R4000_WORKAROUNDS if 64BIT
151 select CPU_R4400_WORKAROUNDS if 64BIT
152 select DMA_NONCOHERENT
153 select NO_IOPORT
154 select IRQ_CPU
155 select SYS_HAS_CPU_R3000
156 select SYS_HAS_CPU_R4X00
157 select SYS_SUPPORTS_32BIT_KERNEL
158 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
159 select SYS_SUPPORTS_LITTLE_ENDIAN
160 select SYS_SUPPORTS_128HZ
161 select SYS_SUPPORTS_256HZ
162 select SYS_SUPPORTS_1024HZ
163 help
164 This enables support for DEC's MIPS based workstations. For details
165 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
166 DECstation porting pages on <http://decstation.unix-ag.org/>.
167
168 If you have one of the following DECstation Models you definitely
169 want to choose R4xx0 for the CPU Type:
170
171 DECstation 5000/50
172 DECstation 5000/150
173 DECstation 5000/260
174 DECsystem 5900/260
175
176 otherwise choose R3000.
177
178 config MACH_JAZZ
179 bool "Jazz family of machines"
180 select ARC
181 select ARC32
182 select ARCH_MAY_HAVE_PC_FDC
183 select CEVT_R4K
184 select CSRC_R4K
185 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
186 select GENERIC_ISA_DMA
187 select IRQ_CPU
188 select I8253
189 select I8259
190 select ISA
191 select SYS_HAS_CPU_R4X00
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
194 select SYS_SUPPORTS_100HZ
195 help
196 This a family of machines based on the MIPS R4030 chipset which was
197 used by several vendors to build RISC/os and Windows NT workstations.
198 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
199 Olivetti M700-10 workstations.
200
201 config MACH_JZ4740
202 bool "Ingenic JZ4740 based machines"
203 select SYS_HAS_CPU_MIPS32_R1
204 select SYS_SUPPORTS_32BIT_KERNEL
205 select SYS_SUPPORTS_LITTLE_ENDIAN
206 select DMA_NONCOHERENT
207 select IRQ_CPU
208 select GENERIC_GPIO
209 select ARCH_REQUIRE_GPIOLIB
210 select SYS_HAS_EARLY_PRINTK
211 select HAVE_PWM
212 select HAVE_CLK
213
214 config LASAT
215 bool "LASAT Networks platforms"
216 select CEVT_R4K
217 select CSRC_R4K
218 select DMA_NONCOHERENT
219 select SYS_HAS_EARLY_PRINTK
220 select HW_HAS_PCI
221 select IRQ_CPU
222 select PCI_GT64XXX_PCI0
223 select MIPS_NILE4
224 select R5000_CPU_SCACHE
225 select SYS_HAS_CPU_R5000
226 select SYS_SUPPORTS_32BIT_KERNEL
227 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
228 select SYS_SUPPORTS_LITTLE_ENDIAN
229
230 config MACH_LOONGSON
231 bool "Loongson family of machines"
232 select SYS_SUPPORTS_ZBOOT
233 help
234 This enables the support of Loongson family of machines.
235
236 Loongson is a family of general-purpose MIPS-compatible CPUs.
237 developed at Institute of Computing Technology (ICT),
238 Chinese Academy of Sciences (CAS) in the People's Republic
239 of China. The chief architect is Professor Weiwu Hu.
240
241 config MIPS_MALTA
242 bool "MIPS Malta board"
243 select ARCH_MAY_HAVE_PC_FDC
244 select BOOT_ELF32
245 select BOOT_RAW
246 select CEVT_R4K
247 select CSRC_R4K
248 select DMA_NONCOHERENT
249 select GENERIC_ISA_DMA
250 select IRQ_CPU
251 select IRQ_GIC
252 select HW_HAS_PCI
253 select I8253
254 select I8259
255 select MIPS_BOARDS_GEN
256 select MIPS_BONITO64
257 select MIPS_CPU_SCACHE
258 select PCI_GT64XXX_PCI0
259 select MIPS_MSC
260 select SWAP_IO_SPACE
261 select SYS_HAS_CPU_MIPS32_R1
262 select SYS_HAS_CPU_MIPS32_R2
263 select SYS_HAS_CPU_MIPS64_R1
264 select SYS_HAS_CPU_NEVADA
265 select SYS_HAS_CPU_RM7000
266 select SYS_HAS_EARLY_PRINTK
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_64BIT_KERNEL
269 select SYS_SUPPORTS_BIG_ENDIAN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
271 select SYS_SUPPORTS_MIPS_CMP
272 select SYS_SUPPORTS_MULTITHREADING
273 select SYS_SUPPORTS_SMARTMIPS
274 select SYS_SUPPORTS_ZBOOT
275 help
276 This enables support for the MIPS Technologies Malta evaluation
277 board.
278
279 config MIPS_SIM
280 bool 'MIPS simulator (MIPSsim)'
281 select CEVT_R4K
282 select CSRC_R4K
283 select DMA_NONCOHERENT
284 select SYS_HAS_EARLY_PRINTK
285 select IRQ_CPU
286 select BOOT_RAW
287 select SYS_HAS_CPU_MIPS32_R1
288 select SYS_HAS_CPU_MIPS32_R2
289 select SYS_HAS_EARLY_PRINTK
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_SUPPORTS_MULTITHREADING
293 select SYS_SUPPORTS_LITTLE_ENDIAN
294 help
295 This option enables support for MIPS Technologies MIPSsim software
296 emulator.
297
298 config NEC_MARKEINS
299 bool "NEC EMMA2RH Mark-eins board"
300 select SOC_EMMA2RH
301 select HW_HAS_PCI
302 help
303 This enables support for the NEC Electronics Mark-eins boards.
304
305 config MACH_VR41XX
306 bool "NEC VR4100 series based machines"
307 select CEVT_R4K
308 select CSRC_R4K
309 select SYS_HAS_CPU_VR41XX
310 select ARCH_REQUIRE_GPIOLIB
311
312 config NXP_STB220
313 bool "NXP STB220 board"
314 select SOC_PNX833X
315 help
316 Support for NXP Semiconductors STB220 Development Board.
317
318 config NXP_STB225
319 bool "NXP 225 board"
320 select SOC_PNX833X
321 select SOC_PNX8335
322 help
323 Support for NXP Semiconductors STB225 Development Board.
324
325 config PNX8550_JBS
326 bool "NXP PNX8550 based JBS board"
327 select PNX8550
328 select SYS_SUPPORTS_LITTLE_ENDIAN
329
330 config PNX8550_STB810
331 bool "NXP PNX8550 based STB810 board"
332 select PNX8550
333 select SYS_SUPPORTS_LITTLE_ENDIAN
334
335 config PMC_MSP
336 bool "PMC-Sierra MSP chipsets"
337 depends on EXPERIMENTAL
338 select CEVT_R4K
339 select CSRC_R4K
340 select DMA_NONCOHERENT
341 select SWAP_IO_SPACE
342 select NO_EXCEPT_FILL
343 select BOOT_RAW
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_SUPPORTS_32BIT_KERNEL
347 select SYS_SUPPORTS_BIG_ENDIAN
348 select IRQ_CPU
349 select SERIAL_8250
350 select SERIAL_8250_CONSOLE
351 help
352 This adds support for the PMC-Sierra family of Multi-Service
353 Processor System-On-A-Chips. These parts include a number
354 of integrated peripherals, interfaces and DSPs in addition to
355 a variety of MIPS cores.
356
357 config PMC_YOSEMITE
358 bool "PMC-Sierra Yosemite eval board"
359 select CEVT_R4K
360 select CSRC_R4K
361 select DMA_COHERENT
362 select HW_HAS_PCI
363 select IRQ_CPU
364 select IRQ_CPU_RM7K
365 select IRQ_CPU_RM9K
366 select SWAP_IO_SPACE
367 select SYS_HAS_CPU_RM9000
368 select SYS_HAS_EARLY_PRINTK
369 select SYS_SUPPORTS_32BIT_KERNEL
370 select SYS_SUPPORTS_64BIT_KERNEL
371 select SYS_SUPPORTS_BIG_ENDIAN
372 select SYS_SUPPORTS_HIGHMEM
373 select SYS_SUPPORTS_SMP
374 help
375 Yosemite is an evaluation board for the RM9000x2 processor
376 manufactured by PMC-Sierra.
377
378 config POWERTV
379 bool "Cisco PowerTV"
380 select BOOT_ELF32
381 select CEVT_R4K
382 select CPU_MIPSR2_IRQ_VI
383 select CPU_MIPSR2_IRQ_EI
384 select CSRC_POWERTV
385 select DMA_NONCOHERENT
386 select HW_HAS_PCI
387 select SYS_HAS_EARLY_PRINTK
388 select SYS_HAS_CPU_MIPS32_R2
389 select SYS_SUPPORTS_32BIT_KERNEL
390 select SYS_SUPPORTS_BIG_ENDIAN
391 select SYS_SUPPORTS_HIGHMEM
392 select USB_OHCI_LITTLE_ENDIAN
393 help
394 This enables support for the Cisco PowerTV Platform.
395
396 config SGI_IP22
397 bool "SGI IP22 (Indy/Indigo2)"
398 select ARC
399 select ARC32
400 select BOOT_ELF32
401 select CEVT_R4K
402 select CSRC_R4K
403 select DEFAULT_SGI_PARTITION
404 select DMA_NONCOHERENT
405 select HW_HAS_EISA
406 select I8253
407 select I8259
408 select IP22_CPU_SCACHE
409 select IRQ_CPU
410 select GENERIC_ISA_DMA_SUPPORT_BROKEN
411 select SGI_HAS_I8042
412 select SGI_HAS_INDYDOG
413 select SGI_HAS_HAL2
414 select SGI_HAS_SEEQ
415 select SGI_HAS_WD93
416 select SGI_HAS_ZILOG
417 select SWAP_IO_SPACE
418 select SYS_HAS_CPU_R4X00
419 select SYS_HAS_CPU_R5000
420 #
421 # Disable EARLY_PRINTK for now since it leads to overwritten prom
422 # memory during early boot on some machines.
423 #
424 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
425 # for a more details discussion
426 #
427 # select SYS_HAS_EARLY_PRINTK
428 select SYS_SUPPORTS_32BIT_KERNEL
429 select SYS_SUPPORTS_64BIT_KERNEL
430 select SYS_SUPPORTS_BIG_ENDIAN
431 help
432 This are the SGI Indy, Challenge S and Indigo2, as well as certain
433 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
434 that runs on these, say Y here.
435
436 config SGI_IP27
437 bool "SGI IP27 (Origin200/2000)"
438 select ARC
439 select ARC64
440 select BOOT_ELF64
441 select DEFAULT_SGI_PARTITION
442 select DMA_COHERENT
443 select SYS_HAS_EARLY_PRINTK
444 select HW_HAS_PCI
445 select NR_CPUS_DEFAULT_64
446 select SYS_HAS_CPU_R10000
447 select SYS_SUPPORTS_64BIT_KERNEL
448 select SYS_SUPPORTS_BIG_ENDIAN
449 select SYS_SUPPORTS_NUMA
450 select SYS_SUPPORTS_SMP
451 help
452 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
453 workstations. To compile a Linux kernel that runs on these, say Y
454 here.
455
456 config SGI_IP28
457 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
458 depends on EXPERIMENTAL
459 select ARC
460 select ARC64
461 select BOOT_ELF64
462 select CEVT_R4K
463 select CSRC_R4K
464 select DEFAULT_SGI_PARTITION
465 select DMA_NONCOHERENT
466 select GENERIC_ISA_DMA_SUPPORT_BROKEN
467 select IRQ_CPU
468 select HW_HAS_EISA
469 select I8253
470 select I8259
471 select SGI_HAS_I8042
472 select SGI_HAS_INDYDOG
473 select SGI_HAS_HAL2
474 select SGI_HAS_SEEQ
475 select SGI_HAS_WD93
476 select SGI_HAS_ZILOG
477 select SWAP_IO_SPACE
478 select SYS_HAS_CPU_R10000
479 #
480 # Disable EARLY_PRINTK for now since it leads to overwritten prom
481 # memory during early boot on some machines.
482 #
483 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484 # for a more details discussion
485 #
486 # select SYS_HAS_EARLY_PRINTK
487 select SYS_SUPPORTS_64BIT_KERNEL
488 select SYS_SUPPORTS_BIG_ENDIAN
489 help
490 This is the SGI Indigo2 with R10000 processor. To compile a Linux
491 kernel that runs on these, say Y here.
492
493 config SGI_IP32
494 bool "SGI IP32 (O2)"
495 select ARC
496 select ARC32
497 select BOOT_ELF32
498 select CEVT_R4K
499 select CSRC_R4K
500 select DMA_NONCOHERENT
501 select HW_HAS_PCI
502 select IRQ_CPU
503 select R5000_CPU_SCACHE
504 select RM7000_CPU_SCACHE
505 select SYS_HAS_CPU_R5000
506 select SYS_HAS_CPU_R10000 if BROKEN
507 select SYS_HAS_CPU_RM7000
508 select SYS_HAS_CPU_NEVADA
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 help
512 If you want this kernel to run on SGI O2 workstation, say Y here.
513
514 config SIBYTE_CRHINE
515 bool "Sibyte BCM91120C-CRhine"
516 depends on EXPERIMENTAL
517 select BOOT_ELF32
518 select DMA_COHERENT
519 select SIBYTE_BCM1120
520 select SWAP_IO_SPACE
521 select SYS_HAS_CPU_SB1
522 select SYS_SUPPORTS_BIG_ENDIAN
523 select SYS_SUPPORTS_LITTLE_ENDIAN
524
525 config SIBYTE_CARMEL
526 bool "Sibyte BCM91120x-Carmel"
527 depends on EXPERIMENTAL
528 select BOOT_ELF32
529 select DMA_COHERENT
530 select SIBYTE_BCM1120
531 select SWAP_IO_SPACE
532 select SYS_HAS_CPU_SB1
533 select SYS_SUPPORTS_BIG_ENDIAN
534 select SYS_SUPPORTS_LITTLE_ENDIAN
535
536 config SIBYTE_CRHONE
537 bool "Sibyte BCM91125C-CRhone"
538 depends on EXPERIMENTAL
539 select BOOT_ELF32
540 select DMA_COHERENT
541 select SIBYTE_BCM1125
542 select SWAP_IO_SPACE
543 select SYS_HAS_CPU_SB1
544 select SYS_SUPPORTS_BIG_ENDIAN
545 select SYS_SUPPORTS_HIGHMEM
546 select SYS_SUPPORTS_LITTLE_ENDIAN
547
548 config SIBYTE_RHONE
549 bool "Sibyte BCM91125E-Rhone"
550 depends on EXPERIMENTAL
551 select BOOT_ELF32
552 select DMA_COHERENT
553 select SIBYTE_BCM1125H
554 select SWAP_IO_SPACE
555 select SYS_HAS_CPU_SB1
556 select SYS_SUPPORTS_BIG_ENDIAN
557 select SYS_SUPPORTS_LITTLE_ENDIAN
558
559 config SIBYTE_SWARM
560 bool "Sibyte BCM91250A-SWARM"
561 select BOOT_ELF32
562 select DMA_COHERENT
563 select HAVE_PATA_PLATFORM
564 select NR_CPUS_DEFAULT_2
565 select SIBYTE_SB1250
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_SB1
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_HIGHMEM
570 select SYS_SUPPORTS_LITTLE_ENDIAN
571 select ZONE_DMA32 if 64BIT
572
573 config SIBYTE_LITTLESUR
574 bool "Sibyte BCM91250C2-LittleSur"
575 depends on EXPERIMENTAL
576 select BOOT_ELF32
577 select DMA_COHERENT
578 select HAVE_PATA_PLATFORM
579 select NR_CPUS_DEFAULT_2
580 select SIBYTE_SB1250
581 select SWAP_IO_SPACE
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
586
587 config SIBYTE_SENTOSA
588 bool "Sibyte BCM91250E-Sentosa"
589 depends on EXPERIMENTAL
590 select BOOT_ELF32
591 select DMA_COHERENT
592 select NR_CPUS_DEFAULT_2
593 select SIBYTE_SB1250
594 select SWAP_IO_SPACE
595 select SYS_HAS_CPU_SB1
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_LITTLE_ENDIAN
598
599 config SIBYTE_BIGSUR
600 bool "Sibyte BCM91480B-BigSur"
601 select BOOT_ELF32
602 select DMA_COHERENT
603 select NR_CPUS_DEFAULT_4
604 select SIBYTE_BCM1x80
605 select SWAP_IO_SPACE
606 select SYS_HAS_CPU_SB1
607 select SYS_SUPPORTS_BIG_ENDIAN
608 select SYS_SUPPORTS_HIGHMEM
609 select SYS_SUPPORTS_LITTLE_ENDIAN
610 select ZONE_DMA32 if 64BIT
611
612 config SNI_RM
613 bool "SNI RM200/300/400"
614 select ARC if CPU_LITTLE_ENDIAN
615 select ARC32 if CPU_LITTLE_ENDIAN
616 select SNIPROM if CPU_BIG_ENDIAN
617 select ARCH_MAY_HAVE_PC_FDC
618 select BOOT_ELF32
619 select CEVT_R4K
620 select CSRC_R4K
621 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
622 select DMA_NONCOHERENT
623 select GENERIC_ISA_DMA
624 select HW_HAS_EISA
625 select HW_HAS_PCI
626 select IRQ_CPU
627 select I8253
628 select I8259
629 select ISA
630 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
631 select SYS_HAS_CPU_R4X00
632 select SYS_HAS_CPU_R5000
633 select SYS_HAS_CPU_R10000
634 select R5000_CPU_SCACHE
635 select SYS_HAS_EARLY_PRINTK
636 select SYS_SUPPORTS_32BIT_KERNEL
637 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
638 select SYS_SUPPORTS_BIG_ENDIAN
639 select SYS_SUPPORTS_HIGHMEM
640 select SYS_SUPPORTS_LITTLE_ENDIAN
641 help
642 The SNI RM200/300/400 are MIPS-based machines manufactured by
643 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
644 Technology and now in turn merged with Fujitsu. Say Y here to
645 support this machine type.
646
647 config MACH_TX39XX
648 bool "Toshiba TX39 series based machines"
649
650 config MACH_TX49XX
651 bool "Toshiba TX49 series based machines"
652
653 config MIKROTIK_RB532
654 bool "Mikrotik RB532 boards"
655 select CEVT_R4K
656 select CSRC_R4K
657 select DMA_NONCOHERENT
658 select HW_HAS_PCI
659 select IRQ_CPU
660 select SYS_HAS_CPU_MIPS32_R1
661 select SYS_SUPPORTS_32BIT_KERNEL
662 select SYS_SUPPORTS_LITTLE_ENDIAN
663 select SWAP_IO_SPACE
664 select BOOT_RAW
665 select ARCH_REQUIRE_GPIOLIB
666 help
667 Support the Mikrotik(tm) RouterBoard 532 series,
668 based on the IDT RC32434 SoC.
669
670 config WR_PPMC
671 bool "Wind River PPMC board"
672 select CEVT_R4K
673 select CSRC_R4K
674 select IRQ_CPU
675 select BOOT_ELF32
676 select DMA_NONCOHERENT
677 select HW_HAS_PCI
678 select PCI_GT64XXX_PCI0
679 select SWAP_IO_SPACE
680 select SYS_HAS_CPU_MIPS32_R1
681 select SYS_HAS_CPU_MIPS32_R2
682 select SYS_HAS_CPU_MIPS64_R1
683 select SYS_HAS_CPU_NEVADA
684 select SYS_HAS_CPU_RM7000
685 select SYS_SUPPORTS_32BIT_KERNEL
686 select SYS_SUPPORTS_64BIT_KERNEL
687 select SYS_SUPPORTS_BIG_ENDIAN
688 select SYS_SUPPORTS_LITTLE_ENDIAN
689 help
690 This enables support for the Wind River MIPS32 4KC PPMC evaluation
691 board, which is based on GT64120 bridge chip.
692
693 config CAVIUM_OCTEON_SIMULATOR
694 bool "Cavium Networks Octeon Simulator"
695 select CEVT_R4K
696 select 64BIT_PHYS_ADDR
697 select DMA_COHERENT
698 select SYS_SUPPORTS_64BIT_KERNEL
699 select SYS_SUPPORTS_BIG_ENDIAN
700 select SYS_SUPPORTS_HIGHMEM
701 select SYS_SUPPORTS_HOTPLUG_CPU
702 select SYS_HAS_CPU_CAVIUM_OCTEON
703 help
704 The Octeon simulator is software performance model of the Cavium
705 Octeon Processor. It supports simulating Octeon processors on x86
706 hardware.
707
708 config CAVIUM_OCTEON_REFERENCE_BOARD
709 bool "Cavium Networks Octeon reference board"
710 select CEVT_R4K
711 select 64BIT_PHYS_ADDR
712 select DMA_COHERENT
713 select SYS_SUPPORTS_64BIT_KERNEL
714 select SYS_SUPPORTS_BIG_ENDIAN
715 select SYS_SUPPORTS_HIGHMEM
716 select SYS_SUPPORTS_HOTPLUG_CPU
717 select SYS_HAS_EARLY_PRINTK
718 select SYS_HAS_CPU_CAVIUM_OCTEON
719 select SWAP_IO_SPACE
720 select HW_HAS_PCI
721 select ARCH_SUPPORTS_MSI
722 select ZONE_DMA32
723 select USB_ARCH_HAS_OHCI
724 select USB_ARCH_HAS_EHCI
725 help
726 This option supports all of the Octeon reference boards from Cavium
727 Networks. It builds a kernel that dynamically determines the Octeon
728 CPU type and supports all known board reference implementations.
729 Some of the supported boards are:
730 EBT3000
731 EBH3000
732 EBH3100
733 Thunder
734 Kodama
735 Hikari
736 Say Y here for most Octeon reference boards.
737
738 endchoice
739
740 source "arch/mips/alchemy/Kconfig"
741 source "arch/mips/ath79/Kconfig"
742 source "arch/mips/bcm63xx/Kconfig"
743 source "arch/mips/jazz/Kconfig"
744 source "arch/mips/jz4740/Kconfig"
745 source "arch/mips/lasat/Kconfig"
746 source "arch/mips/pmc-sierra/Kconfig"
747 source "arch/mips/powertv/Kconfig"
748 source "arch/mips/sgi-ip27/Kconfig"
749 source "arch/mips/sibyte/Kconfig"
750 source "arch/mips/txx9/Kconfig"
751 source "arch/mips/vr41xx/Kconfig"
752 source "arch/mips/cavium-octeon/Kconfig"
753 source "arch/mips/loongson/Kconfig"
754
755 endmenu
756
757 config RWSEM_GENERIC_SPINLOCK
758 bool
759 default y
760
761 config RWSEM_XCHGADD_ALGORITHM
762 bool
763
764 config ARCH_HAS_ILOG2_U32
765 bool
766 default n
767
768 config ARCH_HAS_ILOG2_U64
769 bool
770 default n
771
772 config ARCH_SUPPORTS_OPROFILE
773 bool
774 default y if !MIPS_MT_SMTC
775
776 config GENERIC_FIND_NEXT_BIT
777 bool
778 default y
779
780 config GENERIC_FIND_BIT_LE
781 bool
782 default y
783
784 config GENERIC_HWEIGHT
785 bool
786 default y
787
788 config GENERIC_CALIBRATE_DELAY
789 bool
790 default y
791
792 config GENERIC_CLOCKEVENTS
793 bool
794 default y
795
796 config GENERIC_CMOS_UPDATE
797 bool
798 default y
799
800 config SCHED_OMIT_FRAME_POINTER
801 bool
802 default y
803
804 #
805 # Select some configuration options automatically based on user selections.
806 #
807 config ARC
808 bool
809
810 config ARCH_MAY_HAVE_PC_FDC
811 bool
812
813 config BOOT_RAW
814 bool
815
816 config CEVT_BCM1480
817 bool
818
819 config CEVT_DS1287
820 bool
821
822 config CEVT_GT641XX
823 bool
824
825 config CEVT_R4K_LIB
826 bool
827
828 config CEVT_R4K
829 select CEVT_R4K_LIB
830 bool
831
832 config CEVT_SB1250
833 bool
834
835 config CEVT_TXX9
836 bool
837
838 config CSRC_BCM1480
839 bool
840
841 config CSRC_IOASIC
842 bool
843
844 config CSRC_POWERTV
845 bool
846
847 config CSRC_R4K_LIB
848 bool
849
850 config CSRC_R4K
851 select CSRC_R4K_LIB
852 bool
853
854 config CSRC_SB1250
855 bool
856
857 config GPIO_TXX9
858 select GENERIC_GPIO
859 select ARCH_REQUIRE_GPIOLIB
860 bool
861
862 config CFE
863 bool
864
865 config DMA_COHERENT
866 bool
867
868 config DMA_NONCOHERENT
869 bool
870 select NEED_DMA_MAP_STATE
871
872 config NEED_DMA_MAP_STATE
873 bool
874
875 config SYS_HAS_EARLY_PRINTK
876 bool
877
878 config HOTPLUG_CPU
879 bool "Support for hot-pluggable CPUs"
880 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
881 help
882 Say Y here to allow turning CPUs off and on. CPUs can be
883 controlled through /sys/devices/system/cpu.
884 (Note: power management support will enable this option
885 automatically on SMP systems. )
886 Say N if you want to disable CPU hotplug.
887
888 config SYS_SUPPORTS_HOTPLUG_CPU
889 bool
890
891 config I8259
892 bool
893
894 config MIPS_BONITO64
895 bool
896
897 config MIPS_MSC
898 bool
899
900 config MIPS_NILE4
901 bool
902
903 config MIPS_DISABLE_OBSOLETE_IDE
904 bool
905
906 config SYNC_R4K
907 bool
908
909 config MIPS_MACHINE
910 def_bool n
911
912 config NO_IOPORT
913 def_bool n
914
915 config GENERIC_ISA_DMA
916 bool
917 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
918 select ISA_DMA_API
919
920 config GENERIC_ISA_DMA_SUPPORT_BROKEN
921 bool
922 select GENERIC_ISA_DMA
923
924 config ISA_DMA_API
925 bool
926
927 config GENERIC_GPIO
928 bool
929
930 #
931 # Endianess selection. Sufficiently obscure so many users don't know what to
932 # answer,so we try hard to limit the available choices. Also the use of a
933 # choice statement should be more obvious to the user.
934 #
935 choice
936 prompt "Endianess selection"
937 help
938 Some MIPS machines can be configured for either little or big endian
939 byte order. These modes require different kernels and a different
940 Linux distribution. In general there is one preferred byteorder for a
941 particular system but some systems are just as commonly used in the
942 one or the other endianness.
943
944 config CPU_BIG_ENDIAN
945 bool "Big endian"
946 depends on SYS_SUPPORTS_BIG_ENDIAN
947
948 config CPU_LITTLE_ENDIAN
949 bool "Little endian"
950 depends on SYS_SUPPORTS_LITTLE_ENDIAN
951 help
952
953 endchoice
954
955 config EXPORT_UASM
956 bool
957
958 config SYS_SUPPORTS_APM_EMULATION
959 bool
960
961 config SYS_SUPPORTS_BIG_ENDIAN
962 bool
963
964 config SYS_SUPPORTS_LITTLE_ENDIAN
965 bool
966
967 config SYS_SUPPORTS_HUGETLBFS
968 bool
969 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
970 default y
971
972 config IRQ_CPU
973 bool
974
975 config IRQ_CPU_RM7K
976 bool
977
978 config IRQ_CPU_RM9K
979 bool
980
981 config IRQ_MSP_SLP
982 bool
983
984 config IRQ_MSP_CIC
985 bool
986
987 config IRQ_TXX9
988 bool
989
990 config IRQ_GT641XX
991 bool
992
993 config IRQ_GIC
994 bool
995
996 config IRQ_CPU_OCTEON
997 bool
998
999 config MIPS_BOARDS_GEN
1000 bool
1001
1002 config PCI_GT64XXX_PCI0
1003 bool
1004
1005 config NO_EXCEPT_FILL
1006 bool
1007
1008 config MIPS_RM9122
1009 bool
1010 select SERIAL_RM9000
1011
1012 config SOC_EMMA2RH
1013 bool
1014 select CEVT_R4K
1015 select CSRC_R4K
1016 select DMA_NONCOHERENT
1017 select IRQ_CPU
1018 select SWAP_IO_SPACE
1019 select SYS_HAS_CPU_R5500
1020 select SYS_SUPPORTS_32BIT_KERNEL
1021 select SYS_SUPPORTS_64BIT_KERNEL
1022 select SYS_SUPPORTS_BIG_ENDIAN
1023
1024 config SOC_PNX833X
1025 bool
1026 select CEVT_R4K
1027 select CSRC_R4K
1028 select IRQ_CPU
1029 select DMA_NONCOHERENT
1030 select SYS_HAS_CPU_MIPS32_R2
1031 select SYS_SUPPORTS_32BIT_KERNEL
1032 select SYS_SUPPORTS_LITTLE_ENDIAN
1033 select SYS_SUPPORTS_BIG_ENDIAN
1034 select GENERIC_GPIO
1035 select CPU_MIPSR2_IRQ_VI
1036
1037 config SOC_PNX8335
1038 bool
1039 select SOC_PNX833X
1040
1041 config PNX8550
1042 bool
1043 select SOC_PNX8550
1044
1045 config SOC_PNX8550
1046 bool
1047 select DMA_NONCOHERENT
1048 select HW_HAS_PCI
1049 select SYS_HAS_CPU_MIPS32_R1
1050 select SYS_HAS_EARLY_PRINTK
1051 select SYS_SUPPORTS_32BIT_KERNEL
1052 select GENERIC_GPIO
1053
1054 config SWAP_IO_SPACE
1055 bool
1056
1057 config SERIAL_RM9000
1058 bool
1059
1060 config SGI_HAS_INDYDOG
1061 bool
1062
1063 config SGI_HAS_HAL2
1064 bool
1065
1066 config SGI_HAS_SEEQ
1067 bool
1068
1069 config SGI_HAS_WD93
1070 bool
1071
1072 config SGI_HAS_ZILOG
1073 bool
1074
1075 config SGI_HAS_I8042
1076 bool
1077
1078 config DEFAULT_SGI_PARTITION
1079 bool
1080
1081 config ARC32
1082 bool
1083
1084 config SNIPROM
1085 bool
1086
1087 config BOOT_ELF32
1088 bool
1089
1090 config MIPS_L1_CACHE_SHIFT
1091 int
1092 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1093 default "6" if MIPS_CPU_SCACHE
1094 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1095 default "5"
1096
1097 config HAVE_STD_PC_SERIAL_PORT
1098 bool
1099
1100 config ARC_CONSOLE
1101 bool "ARC console support"
1102 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1103
1104 config ARC_MEMORY
1105 bool
1106 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1107 default y
1108
1109 config ARC_PROMLIB
1110 bool
1111 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1112 default y
1113
1114 config ARC64
1115 bool
1116
1117 config BOOT_ELF64
1118 bool
1119
1120 menu "CPU selection"
1121
1122 choice
1123 prompt "CPU type"
1124 default CPU_R4X00
1125
1126 config CPU_LOONGSON2E
1127 bool "Loongson 2E"
1128 depends on SYS_HAS_CPU_LOONGSON2E
1129 select CPU_LOONGSON2
1130 help
1131 The Loongson 2E processor implements the MIPS III instruction set
1132 with many extensions.
1133
1134 It has an internal FPGA northbridge, which is compatiable to
1135 bonito64.
1136
1137 config CPU_LOONGSON2F
1138 bool "Loongson 2F"
1139 depends on SYS_HAS_CPU_LOONGSON2F
1140 select CPU_LOONGSON2
1141 select GENERIC_GPIO
1142 select ARCH_REQUIRE_GPIOLIB
1143 help
1144 The Loongson 2F processor implements the MIPS III instruction set
1145 with many extensions.
1146
1147 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1148 have a similar programming interface with FPGA northbridge used in
1149 Loongson2E.
1150
1151 config CPU_MIPS32_R1
1152 bool "MIPS32 Release 1"
1153 depends on SYS_HAS_CPU_MIPS32_R1
1154 select CPU_HAS_PREFETCH
1155 select CPU_SUPPORTS_32BIT_KERNEL
1156 select CPU_SUPPORTS_HIGHMEM
1157 help
1158 Choose this option to build a kernel for release 1 or later of the
1159 MIPS32 architecture. Most modern embedded systems with a 32-bit
1160 MIPS processor are based on a MIPS32 processor. If you know the
1161 specific type of processor in your system, choose those that one
1162 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1163 Release 2 of the MIPS32 architecture is available since several
1164 years so chances are you even have a MIPS32 Release 2 processor
1165 in which case you should choose CPU_MIPS32_R2 instead for better
1166 performance.
1167
1168 config CPU_MIPS32_R2
1169 bool "MIPS32 Release 2"
1170 depends on SYS_HAS_CPU_MIPS32_R2
1171 select CPU_HAS_PREFETCH
1172 select CPU_SUPPORTS_32BIT_KERNEL
1173 select CPU_SUPPORTS_HIGHMEM
1174 help
1175 Choose this option to build a kernel for release 2 or later of the
1176 MIPS32 architecture. Most modern embedded systems with a 32-bit
1177 MIPS processor are based on a MIPS32 processor. If you know the
1178 specific type of processor in your system, choose those that one
1179 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1180
1181 config CPU_MIPS64_R1
1182 bool "MIPS64 Release 1"
1183 depends on SYS_HAS_CPU_MIPS64_R1
1184 select CPU_HAS_PREFETCH
1185 select CPU_SUPPORTS_32BIT_KERNEL
1186 select CPU_SUPPORTS_64BIT_KERNEL
1187 select CPU_SUPPORTS_HIGHMEM
1188 select CPU_SUPPORTS_HUGEPAGES
1189 help
1190 Choose this option to build a kernel for release 1 or later of the
1191 MIPS64 architecture. Many modern embedded systems with a 64-bit
1192 MIPS processor are based on a MIPS64 processor. If you know the
1193 specific type of processor in your system, choose those that one
1194 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1195 Release 2 of the MIPS64 architecture is available since several
1196 years so chances are you even have a MIPS64 Release 2 processor
1197 in which case you should choose CPU_MIPS64_R2 instead for better
1198 performance.
1199
1200 config CPU_MIPS64_R2
1201 bool "MIPS64 Release 2"
1202 depends on SYS_HAS_CPU_MIPS64_R2
1203 select CPU_HAS_PREFETCH
1204 select CPU_SUPPORTS_32BIT_KERNEL
1205 select CPU_SUPPORTS_64BIT_KERNEL
1206 select CPU_SUPPORTS_HIGHMEM
1207 select CPU_SUPPORTS_HUGEPAGES
1208 help
1209 Choose this option to build a kernel for release 2 or later of the
1210 MIPS64 architecture. Many modern embedded systems with a 64-bit
1211 MIPS processor are based on a MIPS64 processor. If you know the
1212 specific type of processor in your system, choose those that one
1213 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1214
1215 config CPU_R3000
1216 bool "R3000"
1217 depends on SYS_HAS_CPU_R3000
1218 select CPU_HAS_WB
1219 select CPU_SUPPORTS_32BIT_KERNEL
1220 select CPU_SUPPORTS_HIGHMEM
1221 help
1222 Please make sure to pick the right CPU type. Linux/MIPS is not
1223 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1224 *not* work on R4000 machines and vice versa. However, since most
1225 of the supported machines have an R4000 (or similar) CPU, R4x00
1226 might be a safe bet. If the resulting kernel does not work,
1227 try to recompile with R3000.
1228
1229 config CPU_TX39XX
1230 bool "R39XX"
1231 depends on SYS_HAS_CPU_TX39XX
1232 select CPU_SUPPORTS_32BIT_KERNEL
1233
1234 config CPU_VR41XX
1235 bool "R41xx"
1236 depends on SYS_HAS_CPU_VR41XX
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_64BIT_KERNEL
1239 help
1240 The options selects support for the NEC VR4100 series of processors.
1241 Only choose this option if you have one of these processors as a
1242 kernel built with this option will not run on any other type of
1243 processor or vice versa.
1244
1245 config CPU_R4300
1246 bool "R4300"
1247 depends on SYS_HAS_CPU_R4300
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_64BIT_KERNEL
1250 help
1251 MIPS Technologies R4300-series processors.
1252
1253 config CPU_R4X00
1254 bool "R4x00"
1255 depends on SYS_HAS_CPU_R4X00
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1258 help
1259 MIPS Technologies R4000-series processors other than 4300, including
1260 the R4000, R4400, R4600, and 4700.
1261
1262 config CPU_TX49XX
1263 bool "R49XX"
1264 depends on SYS_HAS_CPU_TX49XX
1265 select CPU_HAS_PREFETCH
1266 select CPU_SUPPORTS_32BIT_KERNEL
1267 select CPU_SUPPORTS_64BIT_KERNEL
1268
1269 config CPU_R5000
1270 bool "R5000"
1271 depends on SYS_HAS_CPU_R5000
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1274 help
1275 MIPS Technologies R5000-series processors other than the Nevada.
1276
1277 config CPU_R5432
1278 bool "R5432"
1279 depends on SYS_HAS_CPU_R5432
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_64BIT_KERNEL
1282
1283 config CPU_R5500
1284 bool "R5500"
1285 depends on SYS_HAS_CPU_R5500
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HUGEPAGES
1289 help
1290 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1291 instruction set.
1292
1293 config CPU_R6000
1294 bool "R6000"
1295 depends on EXPERIMENTAL
1296 depends on SYS_HAS_CPU_R6000
1297 select CPU_SUPPORTS_32BIT_KERNEL
1298 help
1299 MIPS Technologies R6000 and R6000A series processors. Note these
1300 processors are extremely rare and the support for them is incomplete.
1301
1302 config CPU_NEVADA
1303 bool "RM52xx"
1304 depends on SYS_HAS_CPU_NEVADA
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_64BIT_KERNEL
1307 help
1308 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1309
1310 config CPU_R8000
1311 bool "R8000"
1312 depends on EXPERIMENTAL
1313 depends on SYS_HAS_CPU_R8000
1314 select CPU_HAS_PREFETCH
1315 select CPU_SUPPORTS_64BIT_KERNEL
1316 help
1317 MIPS Technologies R8000 processors. Note these processors are
1318 uncommon and the support for them is incomplete.
1319
1320 config CPU_R10000
1321 bool "R10000"
1322 depends on SYS_HAS_CPU_R10000
1323 select CPU_HAS_PREFETCH
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1326 select CPU_SUPPORTS_HIGHMEM
1327 help
1328 MIPS Technologies R10000-series processors.
1329
1330 config CPU_RM7000
1331 bool "RM7000"
1332 depends on SYS_HAS_CPU_RM7000
1333 select CPU_HAS_PREFETCH
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_64BIT_KERNEL
1336 select CPU_SUPPORTS_HIGHMEM
1337
1338 config CPU_RM9000
1339 bool "RM9000"
1340 depends on SYS_HAS_CPU_RM9000
1341 select CPU_HAS_PREFETCH
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 select CPU_SUPPORTS_HIGHMEM
1345 select WEAK_ORDERING
1346
1347 config CPU_SB1
1348 bool "SB1"
1349 depends on SYS_HAS_CPU_SB1
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HIGHMEM
1353 select WEAK_ORDERING
1354
1355 config CPU_CAVIUM_OCTEON
1356 bool "Cavium Octeon processor"
1357 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1358 select IRQ_CPU
1359 select IRQ_CPU_OCTEON
1360 select CPU_HAS_PREFETCH
1361 select CPU_SUPPORTS_64BIT_KERNEL
1362 select SYS_SUPPORTS_SMP
1363 select NR_CPUS_DEFAULT_16
1364 select WEAK_ORDERING
1365 select CPU_SUPPORTS_HIGHMEM
1366 select CPU_SUPPORTS_HUGEPAGES
1367 help
1368 The Cavium Octeon processor is a highly integrated chip containing
1369 many ethernet hardware widgets for networking tasks. The processor
1370 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1371 Full details can be found at http://www.caviumnetworks.com.
1372
1373 config CPU_BMIPS3300
1374 bool "BMIPS3300"
1375 depends on SYS_HAS_CPU_BMIPS3300
1376 select DMA_NONCOHERENT
1377 select IRQ_CPU
1378 select SWAP_IO_SPACE
1379 select SYS_SUPPORTS_32BIT_KERNEL
1380 select WEAK_ORDERING
1381 help
1382 Broadcom BMIPS3300 processors.
1383
1384 config CPU_BMIPS4350
1385 bool "BMIPS4350"
1386 depends on SYS_HAS_CPU_BMIPS4350
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select DMA_NONCOHERENT
1389 select IRQ_CPU
1390 select SWAP_IO_SPACE
1391 select SYS_SUPPORTS_SMP
1392 select SYS_SUPPORTS_HOTPLUG_CPU
1393 select WEAK_ORDERING
1394 help
1395 Broadcom BMIPS4350 ("VIPER") processors.
1396
1397 config CPU_BMIPS4380
1398 bool "BMIPS4380"
1399 depends on SYS_HAS_CPU_BMIPS4380
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select DMA_NONCOHERENT
1402 select IRQ_CPU
1403 select SWAP_IO_SPACE
1404 select SYS_SUPPORTS_SMP
1405 select SYS_SUPPORTS_HOTPLUG_CPU
1406 select WEAK_ORDERING
1407 help
1408 Broadcom BMIPS4380 processors.
1409
1410 config CPU_BMIPS5000
1411 bool "BMIPS5000"
1412 depends on SYS_HAS_CPU_BMIPS5000
1413 select CPU_SUPPORTS_32BIT_KERNEL
1414 select CPU_SUPPORTS_HIGHMEM
1415 select DMA_NONCOHERENT
1416 select IRQ_CPU
1417 select SWAP_IO_SPACE
1418 select SYS_SUPPORTS_SMP
1419 select SYS_SUPPORTS_HOTPLUG_CPU
1420 select WEAK_ORDERING
1421 help
1422 Broadcom BMIPS5000 processors.
1423
1424 endchoice
1425
1426 if CPU_LOONGSON2F
1427 config CPU_NOP_WORKAROUNDS
1428 bool
1429
1430 config CPU_JUMP_WORKAROUNDS
1431 bool
1432
1433 config CPU_LOONGSON2F_WORKAROUNDS
1434 bool "Loongson 2F Workarounds"
1435 default y
1436 select CPU_NOP_WORKAROUNDS
1437 select CPU_JUMP_WORKAROUNDS
1438 help
1439 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1440 require workarounds. Without workarounds the system may hang
1441 unexpectedly. For more information please refer to the gas
1442 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1443
1444 Loongson 2F03 and later have fixed these issues and no workarounds
1445 are needed. The workarounds have no significant side effect on them
1446 but may decrease the performance of the system so this option should
1447 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1448 systems.
1449
1450 If unsure, please say Y.
1451 endif # CPU_LOONGSON2F
1452
1453 config SYS_SUPPORTS_ZBOOT
1454 bool
1455 select HAVE_KERNEL_GZIP
1456 select HAVE_KERNEL_BZIP2
1457 select HAVE_KERNEL_LZMA
1458 select HAVE_KERNEL_LZO
1459
1460 config SYS_SUPPORTS_ZBOOT_UART16550
1461 bool
1462 select SYS_SUPPORTS_ZBOOT
1463
1464 config CPU_LOONGSON2
1465 bool
1466 select CPU_SUPPORTS_32BIT_KERNEL
1467 select CPU_SUPPORTS_64BIT_KERNEL
1468 select CPU_SUPPORTS_HIGHMEM
1469
1470 config SYS_HAS_CPU_LOONGSON2E
1471 bool
1472
1473 config SYS_HAS_CPU_LOONGSON2F
1474 bool
1475 select CPU_SUPPORTS_CPUFREQ
1476 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1477 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1478
1479 config SYS_HAS_CPU_MIPS32_R1
1480 bool
1481
1482 config SYS_HAS_CPU_MIPS32_R2
1483 bool
1484
1485 config SYS_HAS_CPU_MIPS64_R1
1486 bool
1487
1488 config SYS_HAS_CPU_MIPS64_R2
1489 bool
1490
1491 config SYS_HAS_CPU_R3000
1492 bool
1493
1494 config SYS_HAS_CPU_TX39XX
1495 bool
1496
1497 config SYS_HAS_CPU_VR41XX
1498 bool
1499
1500 config SYS_HAS_CPU_R4300
1501 bool
1502
1503 config SYS_HAS_CPU_R4X00
1504 bool
1505
1506 config SYS_HAS_CPU_TX49XX
1507 bool
1508
1509 config SYS_HAS_CPU_R5000
1510 bool
1511
1512 config SYS_HAS_CPU_R5432
1513 bool
1514
1515 config SYS_HAS_CPU_R5500
1516 bool
1517
1518 config SYS_HAS_CPU_R6000
1519 bool
1520
1521 config SYS_HAS_CPU_NEVADA
1522 bool
1523
1524 config SYS_HAS_CPU_R8000
1525 bool
1526
1527 config SYS_HAS_CPU_R10000
1528 bool
1529
1530 config SYS_HAS_CPU_RM7000
1531 bool
1532
1533 config SYS_HAS_CPU_RM9000
1534 bool
1535
1536 config SYS_HAS_CPU_SB1
1537 bool
1538
1539 config SYS_HAS_CPU_CAVIUM_OCTEON
1540 bool
1541
1542 config SYS_HAS_CPU_BMIPS3300
1543 bool
1544
1545 config SYS_HAS_CPU_BMIPS4350
1546 bool
1547
1548 config SYS_HAS_CPU_BMIPS4380
1549 bool
1550
1551 config SYS_HAS_CPU_BMIPS5000
1552 bool
1553
1554 #
1555 # CPU may reorder R->R, R->W, W->R, W->W
1556 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1557 #
1558 config WEAK_ORDERING
1559 bool
1560
1561 #
1562 # CPU may reorder reads and writes beyond LL/SC
1563 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1564 #
1565 config WEAK_REORDERING_BEYOND_LLSC
1566 bool
1567 endmenu
1568
1569 #
1570 # These two indicate any level of the MIPS32 and MIPS64 architecture
1571 #
1572 config CPU_MIPS32
1573 bool
1574 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1575
1576 config CPU_MIPS64
1577 bool
1578 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1579
1580 #
1581 # These two indicate the revision of the architecture, either Release 1 or Release 2
1582 #
1583 config CPU_MIPSR1
1584 bool
1585 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1586
1587 config CPU_MIPSR2
1588 bool
1589 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1590
1591 config SYS_SUPPORTS_32BIT_KERNEL
1592 bool
1593 config SYS_SUPPORTS_64BIT_KERNEL
1594 bool
1595 config CPU_SUPPORTS_32BIT_KERNEL
1596 bool
1597 config CPU_SUPPORTS_64BIT_KERNEL
1598 bool
1599 config CPU_SUPPORTS_CPUFREQ
1600 bool
1601 config CPU_SUPPORTS_ADDRWINCFG
1602 bool
1603 config CPU_SUPPORTS_HUGEPAGES
1604 bool
1605 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1606 bool
1607 config MIPS_PGD_C0_CONTEXT
1608 bool
1609 default y if 64BIT && CPU_MIPSR2
1610
1611 #
1612 # Set to y for ptrace access to watch registers.
1613 #
1614 config HARDWARE_WATCHPOINTS
1615 bool
1616 default y if CPU_MIPSR1 || CPU_MIPSR2
1617
1618 menu "Kernel type"
1619
1620 choice
1621
1622 prompt "Kernel code model"
1623 help
1624 You should only select this option if you have a workload that
1625 actually benefits from 64-bit processing or if your machine has
1626 large memory. You will only be presented a single option in this
1627 menu if your system does not support both 32-bit and 64-bit kernels.
1628
1629 config 32BIT
1630 bool "32-bit kernel"
1631 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1632 select TRAD_SIGNALS
1633 help
1634 Select this option if you want to build a 32-bit kernel.
1635 config 64BIT
1636 bool "64-bit kernel"
1637 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1638 select HAVE_SYSCALL_WRAPPERS
1639 help
1640 Select this option if you want to build a 64-bit kernel.
1641
1642 endchoice
1643
1644 choice
1645 prompt "Kernel page size"
1646 default PAGE_SIZE_4KB
1647
1648 config PAGE_SIZE_4KB
1649 bool "4kB"
1650 depends on !CPU_LOONGSON2
1651 help
1652 This option select the standard 4kB Linux page size. On some
1653 R3000-family processors this is the only available page size. Using
1654 4kB page size will minimize memory consumption and is therefore
1655 recommended for low memory systems.
1656
1657 config PAGE_SIZE_8KB
1658 bool "8kB"
1659 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1660 help
1661 Using 8kB page size will result in higher performance kernel at
1662 the price of higher memory consumption. This option is available
1663 only on R8000 and cnMIPS processors. Note that you will need a
1664 suitable Linux distribution to support this.
1665
1666 config PAGE_SIZE_16KB
1667 bool "16kB"
1668 depends on !CPU_R3000 && !CPU_TX39XX
1669 help
1670 Using 16kB page size will result in higher performance kernel at
1671 the price of higher memory consumption. This option is available on
1672 all non-R3000 family processors. Note that you will need a suitable
1673 Linux distribution to support this.
1674
1675 config PAGE_SIZE_32KB
1676 bool "32kB"
1677 depends on CPU_CAVIUM_OCTEON
1678 help
1679 Using 32kB page size will result in higher performance kernel at
1680 the price of higher memory consumption. This option is available
1681 only on cnMIPS cores. Note that you will need a suitable Linux
1682 distribution to support this.
1683
1684 config PAGE_SIZE_64KB
1685 bool "64kB"
1686 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1687 help
1688 Using 64kB page size will result in higher performance kernel at
1689 the price of higher memory consumption. This option is available on
1690 all non-R3000 family processor. Not that at the time of this
1691 writing this option is still high experimental.
1692
1693 endchoice
1694
1695 config FORCE_MAX_ZONEORDER
1696 int "Maximum zone order"
1697 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1698 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
1699 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1700 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
1701 range 11 64
1702 default "11"
1703 help
1704 The kernel memory allocator divides physically contiguous memory
1705 blocks into "zones", where each zone is a power of two number of
1706 pages. This option selects the largest power of two that the kernel
1707 keeps in the memory allocator. If you need to allocate very large
1708 blocks of physically contiguous memory, then you may need to
1709 increase this value.
1710
1711 This config option is actually maximum order plus one. For example,
1712 a value of 11 means that the largest free memory block is 2^10 pages.
1713
1714 The page size is not necessarily 4KB. Keep this in mind
1715 when choosing a value for this option.
1716
1717 config BOARD_SCACHE
1718 bool
1719
1720 config IP22_CPU_SCACHE
1721 bool
1722 select BOARD_SCACHE
1723
1724 #
1725 # Support for a MIPS32 / MIPS64 style S-caches
1726 #
1727 config MIPS_CPU_SCACHE
1728 bool
1729 select BOARD_SCACHE
1730
1731 config R5000_CPU_SCACHE
1732 bool
1733 select BOARD_SCACHE
1734
1735 config RM7000_CPU_SCACHE
1736 bool
1737 select BOARD_SCACHE
1738
1739 config SIBYTE_DMA_PAGEOPS
1740 bool "Use DMA to clear/copy pages"
1741 depends on CPU_SB1
1742 help
1743 Instead of using the CPU to zero and copy pages, use a Data Mover
1744 channel. These DMA channels are otherwise unused by the standard
1745 SiByte Linux port. Seems to give a small performance benefit.
1746
1747 config CPU_HAS_PREFETCH
1748 bool
1749
1750 choice
1751 prompt "MIPS MT options"
1752
1753 config MIPS_MT_DISABLED
1754 bool "Disable multithreading support."
1755 help
1756 Use this option if your workload can't take advantage of
1757 MIPS hardware multithreading support. On systems that don't have
1758 the option of an MT-enabled processor this option will be the only
1759 option in this menu.
1760
1761 config MIPS_MT_SMP
1762 bool "Use 1 TC on each available VPE for SMP"
1763 depends on SYS_SUPPORTS_MULTITHREADING
1764 select CPU_MIPSR2_IRQ_VI
1765 select CPU_MIPSR2_IRQ_EI
1766 select MIPS_MT
1767 select NR_CPUS_DEFAULT_2
1768 select SMP
1769 select SYS_SUPPORTS_SCHED_SMT if SMP
1770 select SYS_SUPPORTS_SMP
1771 select SMP_UP
1772 help
1773 This is a kernel model which is known a VSMP but lately has been
1774 marketesed into SMVP.
1775 Virtual SMP uses the processor's VPEs to implement virtual
1776 processors. In currently available configuration of the 34K processor
1777 this allows for a dual processor. Both processors will share the same
1778 primary caches; each will obtain the half of the TLB for it's own
1779 exclusive use. For a layman this model can be described as similar to
1780 what Intel calls Hyperthreading.
1781
1782 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1783
1784 config MIPS_MT_SMTC
1785 bool "SMTC: Use all TCs on all VPEs for SMP"
1786 depends on CPU_MIPS32_R2
1787 #depends on CPU_MIPS64_R2 # once there is hardware ...
1788 depends on SYS_SUPPORTS_MULTITHREADING
1789 select CPU_MIPSR2_IRQ_VI
1790 select CPU_MIPSR2_IRQ_EI
1791 select MIPS_MT
1792 select NR_CPUS_DEFAULT_8
1793 select SMP
1794 select SYS_SUPPORTS_SMP
1795 select SMP_UP
1796 help
1797 This is a kernel model which is known a SMTC or lately has been
1798 marketesed into SMVP.
1799 is presenting the available TC's of the core as processors to Linux.
1800 On currently available 34K processors this means a Linux system will
1801 see up to 5 processors. The implementation of the SMTC kernel differs
1802 significantly from VSMP and cannot efficiently coexist in the same
1803 kernel binary so the choice between VSMP and SMTC is a compile time
1804 decision.
1805
1806 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1807
1808 endchoice
1809
1810 config MIPS_MT
1811 bool
1812
1813 config SCHED_SMT
1814 bool "SMT (multithreading) scheduler support"
1815 depends on SYS_SUPPORTS_SCHED_SMT
1816 default n
1817 help
1818 SMT scheduler support improves the CPU scheduler's decision making
1819 when dealing with MIPS MT enabled cores at a cost of slightly
1820 increased overhead in some places. If unsure say N here.
1821
1822 config SYS_SUPPORTS_SCHED_SMT
1823 bool
1824
1825
1826 config SYS_SUPPORTS_MULTITHREADING
1827 bool
1828
1829 config MIPS_MT_FPAFF
1830 bool "Dynamic FPU affinity for FP-intensive threads"
1831 default y
1832 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1833
1834 config MIPS_VPE_LOADER
1835 bool "VPE loader support."
1836 depends on SYS_SUPPORTS_MULTITHREADING
1837 select CPU_MIPSR2_IRQ_VI
1838 select CPU_MIPSR2_IRQ_EI
1839 select MIPS_MT
1840 help
1841 Includes a loader for loading an elf relocatable object
1842 onto another VPE and running it.
1843
1844 config MIPS_MT_SMTC_IM_BACKSTOP
1845 bool "Use per-TC register bits as backstop for inhibited IM bits"
1846 depends on MIPS_MT_SMTC
1847 default n
1848 help
1849 To support multiple TC microthreads acting as "CPUs" within
1850 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1851 during interrupt handling. To support legacy drivers and interrupt
1852 controller management code, SMTC has a "backstop" to track and
1853 if necessary restore the interrupt mask. This has some performance
1854 impact on interrupt service overhead.
1855
1856 config MIPS_MT_SMTC_IRQAFF
1857 bool "Support IRQ affinity API"
1858 depends on MIPS_MT_SMTC
1859 default n
1860 help
1861 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1862 for SMTC Linux kernel. Requires platform support, of which
1863 an example can be found in the MIPS kernel i8259 and Malta
1864 platform code. Adds some overhead to interrupt dispatch, and
1865 should be used only if you know what you are doing.
1866
1867 config MIPS_VPE_LOADER_TOM
1868 bool "Load VPE program into memory hidden from linux"
1869 depends on MIPS_VPE_LOADER
1870 default y
1871 help
1872 The loader can use memory that is present but has been hidden from
1873 Linux using the kernel command line option "mem=xxMB". It's up to
1874 you to ensure the amount you put in the option and the space your
1875 program requires is less or equal to the amount physically present.
1876
1877 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1878 config MIPS_VPE_APSP_API
1879 bool "Enable support for AP/SP API (RTLX)"
1880 depends on MIPS_VPE_LOADER
1881 help
1882
1883 config MIPS_APSP_KSPD
1884 bool "Enable KSPD"
1885 depends on MIPS_VPE_APSP_API
1886 default y
1887 help
1888 KSPD is a kernel daemon that accepts syscall requests from the SP
1889 side, actions them and returns the results. It also handles the
1890 "exit" syscall notifying other kernel modules the SP program is
1891 exiting. You probably want to say yes here.
1892
1893 config MIPS_CMP
1894 bool "MIPS CMP framework support"
1895 depends on SYS_SUPPORTS_MIPS_CMP
1896 select SYNC_R4K
1897 select SYS_SUPPORTS_SMP
1898 select SYS_SUPPORTS_SCHED_SMT if SMP
1899 select WEAK_ORDERING
1900 default n
1901 help
1902 This is a placeholder option for the GCMP work. It will need to
1903 be handled differently...
1904
1905 config SB1_PASS_1_WORKAROUNDS
1906 bool
1907 depends on CPU_SB1_PASS_1
1908 default y
1909
1910 config SB1_PASS_2_WORKAROUNDS
1911 bool
1912 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1913 default y
1914
1915 config SB1_PASS_2_1_WORKAROUNDS
1916 bool
1917 depends on CPU_SB1 && CPU_SB1_PASS_2
1918 default y
1919
1920 config 64BIT_PHYS_ADDR
1921 bool
1922
1923 config ARCH_PHYS_ADDR_T_64BIT
1924 def_bool 64BIT_PHYS_ADDR
1925
1926 config CPU_HAS_SMARTMIPS
1927 depends on SYS_SUPPORTS_SMARTMIPS
1928 bool "Support for the SmartMIPS ASE"
1929 help
1930 SmartMIPS is a extension of the MIPS32 architecture aimed at
1931 increased security at both hardware and software level for
1932 smartcards. Enabling this option will allow proper use of the
1933 SmartMIPS instructions by Linux applications. However a kernel with
1934 this option will not work on a MIPS core without SmartMIPS core. If
1935 you don't know you probably don't have SmartMIPS and should say N
1936 here.
1937
1938 config CPU_HAS_WB
1939 bool
1940
1941 #
1942 # Vectored interrupt mode is an R2 feature
1943 #
1944 config CPU_MIPSR2_IRQ_VI
1945 bool
1946
1947 #
1948 # Extended interrupt mode is an R2 feature
1949 #
1950 config CPU_MIPSR2_IRQ_EI
1951 bool
1952
1953 config CPU_HAS_SYNC
1954 bool
1955 depends on !CPU_R3000
1956 default y
1957
1958 config GENERIC_CLOCKEVENTS_BROADCAST
1959 bool
1960
1961 #
1962 # CPU non-features
1963 #
1964 config CPU_DADDI_WORKAROUNDS
1965 bool
1966
1967 config CPU_R4000_WORKAROUNDS
1968 bool
1969 select CPU_R4400_WORKAROUNDS
1970
1971 config CPU_R4400_WORKAROUNDS
1972 bool
1973
1974 #
1975 # - Highmem only makes sense for the 32-bit kernel.
1976 # - The current highmem code will only work properly on physically indexed
1977 # caches such as R3000, SB1, R7000 or those that look like they're virtually
1978 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
1979 # moment we protect the user and offer the highmem option only on machines
1980 # where it's known to be safe. This will not offer highmem on a few systems
1981 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1982 # indexed CPUs but we're playing safe.
1983 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
1984 # know they might have memory configurations that could make use of highmem
1985 # support.
1986 #
1987 config HIGHMEM
1988 bool "High Memory Support"
1989 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
1990
1991 config CPU_SUPPORTS_HIGHMEM
1992 bool
1993
1994 config SYS_SUPPORTS_HIGHMEM
1995 bool
1996
1997 config SYS_SUPPORTS_SMARTMIPS
1998 bool
1999
2000 config ARCH_FLATMEM_ENABLE
2001 def_bool y
2002 depends on !NUMA && !CPU_LOONGSON2
2003
2004 config ARCH_DISCONTIGMEM_ENABLE
2005 bool
2006 default y if SGI_IP27
2007 help
2008 Say Y to support efficient handling of discontiguous physical memory,
2009 for architectures which are either NUMA (Non-Uniform Memory Access)
2010 or have huge holes in the physical address space for other reasons.
2011 See <file:Documentation/vm/numa> for more.
2012
2013 config ARCH_POPULATES_NODE_MAP
2014 def_bool y
2015
2016 config ARCH_SPARSEMEM_ENABLE
2017 bool
2018 select SPARSEMEM_STATIC
2019
2020 config NUMA
2021 bool "NUMA Support"
2022 depends on SYS_SUPPORTS_NUMA
2023 help
2024 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2025 Access). This option improves performance on systems with more
2026 than two nodes; on two node systems it is generally better to
2027 leave it disabled; on single node systems disable this option
2028 disabled.
2029
2030 config SYS_SUPPORTS_NUMA
2031 bool
2032
2033 config NODES_SHIFT
2034 int
2035 default "6"
2036 depends on NEED_MULTIPLE_NODES
2037
2038 config HW_PERF_EVENTS
2039 bool "Enable hardware performance counter support for perf events"
2040 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
2041 default y
2042 help
2043 Enable hardware performance counter support for perf events. If
2044 disabled, perf events will use software events only.
2045
2046 source "mm/Kconfig"
2047
2048 config SMP
2049 bool "Multi-Processing support"
2050 depends on SYS_SUPPORTS_SMP
2051 select IRQ_PER_CPU
2052 select USE_GENERIC_SMP_HELPERS
2053 help
2054 This enables support for systems with more than one CPU. If you have
2055 a system with only one CPU, like most personal computers, say N. If
2056 you have a system with more than one CPU, say Y.
2057
2058 If you say N here, the kernel will run on single and multiprocessor
2059 machines, but will use only one CPU of a multiprocessor machine. If
2060 you say Y here, the kernel will run on many, but not all,
2061 singleprocessor machines. On a singleprocessor machine, the kernel
2062 will run faster if you say N here.
2063
2064 People using multiprocessor machines who say Y here should also say
2065 Y to "Enhanced Real Time Clock Support", below.
2066
2067 See also the SMP-HOWTO available at
2068 <http://www.tldp.org/docs.html#howto>.
2069
2070 If you don't know what to do here, say N.
2071
2072 config SMP_UP
2073 bool
2074
2075 config SYS_SUPPORTS_MIPS_CMP
2076 bool
2077
2078 config SYS_SUPPORTS_SMP
2079 bool
2080
2081 config NR_CPUS_DEFAULT_1
2082 bool
2083
2084 config NR_CPUS_DEFAULT_2
2085 bool
2086
2087 config NR_CPUS_DEFAULT_4
2088 bool
2089
2090 config NR_CPUS_DEFAULT_8
2091 bool
2092
2093 config NR_CPUS_DEFAULT_16
2094 bool
2095
2096 config NR_CPUS_DEFAULT_32
2097 bool
2098
2099 config NR_CPUS_DEFAULT_64
2100 bool
2101
2102 config NR_CPUS
2103 int "Maximum number of CPUs (2-64)"
2104 range 1 64 if NR_CPUS_DEFAULT_1
2105 depends on SMP
2106 default "1" if NR_CPUS_DEFAULT_1
2107 default "2" if NR_CPUS_DEFAULT_2
2108 default "4" if NR_CPUS_DEFAULT_4
2109 default "8" if NR_CPUS_DEFAULT_8
2110 default "16" if NR_CPUS_DEFAULT_16
2111 default "32" if NR_CPUS_DEFAULT_32
2112 default "64" if NR_CPUS_DEFAULT_64
2113 help
2114 This allows you to specify the maximum number of CPUs which this
2115 kernel will support. The maximum supported value is 32 for 32-bit
2116 kernel and 64 for 64-bit kernels; the minimum value which makes
2117 sense is 1 for Qemu (useful only for kernel debugging purposes)
2118 and 2 for all others.
2119
2120 This is purely to save memory - each supported CPU adds
2121 approximately eight kilobytes to the kernel image. For best
2122 performance should round up your number of processors to the next
2123 power of two.
2124
2125 source "kernel/time/Kconfig"
2126
2127 #
2128 # Timer Interrupt Frequency Configuration
2129 #
2130
2131 choice
2132 prompt "Timer frequency"
2133 default HZ_250
2134 help
2135 Allows the configuration of the timer frequency.
2136
2137 config HZ_48
2138 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2139
2140 config HZ_100
2141 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2142
2143 config HZ_128
2144 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2145
2146 config HZ_250
2147 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2148
2149 config HZ_256
2150 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2151
2152 config HZ_1000
2153 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2154
2155 config HZ_1024
2156 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2157
2158 endchoice
2159
2160 config SYS_SUPPORTS_48HZ
2161 bool
2162
2163 config SYS_SUPPORTS_100HZ
2164 bool
2165
2166 config SYS_SUPPORTS_128HZ
2167 bool
2168
2169 config SYS_SUPPORTS_250HZ
2170 bool
2171
2172 config SYS_SUPPORTS_256HZ
2173 bool
2174
2175 config SYS_SUPPORTS_1000HZ
2176 bool
2177
2178 config SYS_SUPPORTS_1024HZ
2179 bool
2180
2181 config SYS_SUPPORTS_ARBIT_HZ
2182 bool
2183 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2184 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2185 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2186 !SYS_SUPPORTS_1024HZ
2187
2188 config HZ
2189 int
2190 default 48 if HZ_48
2191 default 100 if HZ_100
2192 default 128 if HZ_128
2193 default 250 if HZ_250
2194 default 256 if HZ_256
2195 default 1000 if HZ_1000
2196 default 1024 if HZ_1024
2197
2198 source "kernel/Kconfig.preempt"
2199
2200 config MIPS_INSANE_LARGE
2201 bool "Support for large 64-bit configurations"
2202 depends on CPU_R10000 && 64BIT
2203 help
2204 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
2205 previous 64-bit processors which only supported 40 bit / 1TB. If you
2206 need processes of more than 1TB virtual address space, say Y here.
2207 This will result in additional memory usage, so it is not
2208 recommended for normal users.
2209
2210 config KEXEC
2211 bool "Kexec system call (EXPERIMENTAL)"
2212 depends on EXPERIMENTAL
2213 help
2214 kexec is a system call that implements the ability to shutdown your
2215 current kernel, and to start another kernel. It is like a reboot
2216 but it is independent of the system firmware. And like a reboot
2217 you can start any kernel with it, not just Linux.
2218
2219 The name comes from the similarity to the exec system call.
2220
2221 It is an ongoing process to be certain the hardware in a machine
2222 is properly shutdown, so do not be surprised if this code does not
2223 initially work for you. It may help to enable device hotplugging
2224 support. As of this writing the exact hardware interface is
2225 strongly in flux, so no good recommendation can be made.
2226
2227 config SECCOMP
2228 bool "Enable seccomp to safely compute untrusted bytecode"
2229 depends on PROC_FS
2230 default y
2231 help
2232 This kernel feature is useful for number crunching applications
2233 that may need to compute untrusted bytecode during their
2234 execution. By using pipes or other transports made available to
2235 the process as file descriptors supporting the read/write
2236 syscalls, it's possible to isolate those applications in
2237 their own address space using seccomp. Once seccomp is
2238 enabled via /proc/<pid>/seccomp, it cannot be disabled
2239 and the task is only allowed to execute a few safe syscalls
2240 defined by each seccomp mode.
2241
2242 If unsure, say Y. Only embedded should say N here.
2243
2244 config USE_OF
2245 bool "Flattened Device Tree support"
2246 select OF
2247 select OF_EARLY_FLATTREE
2248 help
2249 Include support for flattened device tree machine descriptions.
2250
2251 endmenu
2252
2253 config LOCKDEP_SUPPORT
2254 bool
2255 default y
2256
2257 config STACKTRACE_SUPPORT
2258 bool
2259 default y
2260
2261 source "init/Kconfig"
2262
2263 source "kernel/Kconfig.freezer"
2264
2265 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2266
2267 config HW_HAS_EISA
2268 bool
2269 config HW_HAS_PCI
2270 bool
2271
2272 config PCI
2273 bool "Support for PCI controller"
2274 depends on HW_HAS_PCI
2275 select PCI_DOMAINS
2276 help
2277 Find out whether you have a PCI motherboard. PCI is the name of a
2278 bus system, i.e. the way the CPU talks to the other stuff inside
2279 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2280 say Y, otherwise N.
2281
2282 config PCI_DOMAINS
2283 bool
2284
2285 source "drivers/pci/Kconfig"
2286
2287 #
2288 # ISA support is now enabled via select. Too many systems still have the one
2289 # or other ISA chip on the board that users don't know about so don't expect
2290 # users to choose the right thing ...
2291 #
2292 config ISA
2293 bool
2294
2295 config EISA
2296 bool "EISA support"
2297 depends on HW_HAS_EISA
2298 select ISA
2299 select GENERIC_ISA_DMA
2300 ---help---
2301 The Extended Industry Standard Architecture (EISA) bus was
2302 developed as an open alternative to the IBM MicroChannel bus.
2303
2304 The EISA bus provided some of the features of the IBM MicroChannel
2305 bus while maintaining backward compatibility with cards made for
2306 the older ISA bus. The EISA bus saw limited use between 1988 and
2307 1995 when it was made obsolete by the PCI bus.
2308
2309 Say Y here if you are building a kernel for an EISA-based machine.
2310
2311 Otherwise, say N.
2312
2313 source "drivers/eisa/Kconfig"
2314
2315 config TC
2316 bool "TURBOchannel support"
2317 depends on MACH_DECSTATION
2318 help
2319 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2320 processors. TURBOchannel programming specifications are available
2321 at:
2322 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2323 and:
2324 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2325 Linux driver support status is documented at:
2326 <http://www.linux-mips.org/wiki/DECstation>
2327
2328 #config ACCESSBUS
2329 # bool "Access.Bus support"
2330 # depends on TC
2331
2332 config MMU
2333 bool
2334 default y
2335
2336 config I8253
2337 bool
2338 select MIPS_EXTERNAL_TIMER
2339
2340 config ZONE_DMA32
2341 bool
2342
2343 source "drivers/pcmcia/Kconfig"
2344
2345 source "drivers/pci/hotplug/Kconfig"
2346
2347 config RAPIDIO
2348 bool "RapidIO support"
2349 depends on PCI
2350 default n
2351 help
2352 If you say Y here, the kernel will include drivers and
2353 infrastructure code to support RapidIO interconnect devices.
2354
2355 source "drivers/rapidio/Kconfig"
2356
2357 endmenu
2358
2359 menu "Executable file formats"
2360
2361 source "fs/Kconfig.binfmt"
2362
2363 config TRAD_SIGNALS
2364 bool
2365
2366 config MIPS32_COMPAT
2367 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2368 depends on 64BIT
2369 help
2370 Select this option if you want Linux/MIPS 32-bit binary
2371 compatibility. Since all software available for Linux/MIPS is
2372 currently 32-bit you should say Y here.
2373
2374 config COMPAT
2375 bool
2376 depends on MIPS32_COMPAT
2377 default y
2378
2379 config SYSVIPC_COMPAT
2380 bool
2381 depends on COMPAT && SYSVIPC
2382 default y
2383
2384 config MIPS32_O32
2385 bool "Kernel support for o32 binaries"
2386 depends on MIPS32_COMPAT
2387 help
2388 Select this option if you want to run o32 binaries. These are pure
2389 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2390 existing binaries are in this format.
2391
2392 If unsure, say Y.
2393
2394 config MIPS32_N32
2395 bool "Kernel support for n32 binaries"
2396 depends on MIPS32_COMPAT
2397 help
2398 Select this option if you want to run n32 binaries. These are
2399 64-bit binaries using 32-bit quantities for addressing and certain
2400 data that would normally be 64-bit. They are used in special
2401 cases.
2402
2403 If unsure, say N.
2404
2405 config BINFMT_ELF32
2406 bool
2407 default y if MIPS32_O32 || MIPS32_N32
2408
2409 endmenu
2410
2411 menu "Power management options"
2412
2413 config ARCH_HIBERNATION_POSSIBLE
2414 def_bool y
2415 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2416
2417 config ARCH_SUSPEND_POSSIBLE
2418 def_bool y
2419 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2420
2421 source "kernel/power/Kconfig"
2422
2423 endmenu
2424
2425 source "arch/mips/kernel/cpufreq/Kconfig"
2426
2427 source "net/Kconfig"
2428
2429 source "drivers/Kconfig"
2430
2431 source "fs/Kconfig"
2432
2433 source "arch/mips/Kconfig.debug"
2434
2435 source "security/Kconfig"
2436
2437 source "crypto/Kconfig"
2438
2439 menuconfig VIRTUALIZATION
2440 bool "Virtualization"
2441 default n
2442 ---help---
2443 Say Y here to get to see options for using your Linux host to run other
2444 operating systems inside virtual machines (guests).
2445 This option alone does not add any kernel code.
2446
2447 If you say N, all options in this submenu will be skipped and disabled.
2448
2449 if VIRTUALIZATION
2450
2451 source drivers/virtio/Kconfig
2452
2453 endif # VIRTUALIZATION
2454
2455 source "lib/Kconfig"
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