Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
[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 ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KPROBES
19 select HAVE_KRETPROBES
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select RTC_LIB if !MACH_LOONGSON
22 select GENERIC_ATOMIC64 if !64BIT
23 select HAVE_DMA_ATTRS
24 select HAVE_DMA_API_DEBUG
25 select HAVE_GENERIC_HARDIRQS
26 select GENERIC_IRQ_PROBE
27 select GENERIC_IRQ_SHOW
28 select HAVE_ARCH_JUMP_LABEL
29 select IRQ_FORCED_THREADING
30 select HAVE_MEMBLOCK
31 select HAVE_MEMBLOCK_NODE_MAP
32 select ARCH_DISCARD_MEMBLOCK
33 select GENERIC_SMP_IDLE_THREAD
34 select BUILDTIME_EXTABLE_SORT
35 select GENERIC_CLOCKEVENTS
36 select GENERIC_CMOS_UPDATE
37
38 menu "Machine selection"
39
40 config ZONE_DMA
41 bool
42
43 choice
44 prompt "System type"
45 default SGI_IP22
46
47 config MIPS_ALCHEMY
48 bool "Alchemy processor based machines"
49 select 64BIT_PHYS_ADDR
50 select CEVT_R4K_LIB
51 select CSRC_R4K_LIB
52 select IRQ_CPU
53 select SYS_HAS_CPU_MIPS32_R1
54 select SYS_SUPPORTS_32BIT_KERNEL
55 select SYS_SUPPORTS_APM_EMULATION
56 select GENERIC_GPIO
57 select ARCH_WANT_OPTIONAL_GPIOLIB
58 select SYS_SUPPORTS_ZBOOT
59 select USB_ARCH_HAS_OHCI
60 select USB_ARCH_HAS_EHCI
61
62 config AR7
63 bool "Texas Instruments AR7"
64 select BOOT_ELF32
65 select DMA_NONCOHERENT
66 select CEVT_R4K
67 select CSRC_R4K
68 select IRQ_CPU
69 select NO_EXCEPT_FILL
70 select SWAP_IO_SPACE
71 select SYS_HAS_CPU_MIPS32_R1
72 select SYS_HAS_EARLY_PRINTK
73 select SYS_SUPPORTS_32BIT_KERNEL
74 select SYS_SUPPORTS_LITTLE_ENDIAN
75 select SYS_SUPPORTS_ZBOOT_UART16550
76 select ARCH_REQUIRE_GPIOLIB
77 select VLYNQ
78 help
79 Support for the Texas Instruments AR7 System-on-a-Chip
80 family: TNETD7100, 7200 and 7300.
81
82 config ATH79
83 bool "Atheros AR71XX/AR724X/AR913X based boards"
84 select ARCH_REQUIRE_GPIOLIB
85 select BOOT_RAW
86 select CEVT_R4K
87 select CSRC_R4K
88 select DMA_NONCOHERENT
89 select IRQ_CPU
90 select MIPS_MACHINE
91 select SYS_HAS_CPU_MIPS32_R2
92 select SYS_HAS_EARLY_PRINTK
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_BIG_ENDIAN
95 help
96 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
97
98 config BCM47XX
99 bool "Broadcom BCM47XX based boards"
100 select CEVT_R4K
101 select CSRC_R4K
102 select DMA_NONCOHERENT
103 select HW_HAS_PCI
104 select IRQ_CPU
105 select SYS_SUPPORTS_32BIT_KERNEL
106 select SYS_SUPPORTS_LITTLE_ENDIAN
107 select GENERIC_GPIO
108 select SYS_HAS_EARLY_PRINTK
109 select CFE
110 help
111 Support for BCM47XX based boards
112
113 config BCM63XX
114 bool "Broadcom BCM63XX based boards"
115 select CEVT_R4K
116 select CSRC_R4K
117 select DMA_NONCOHERENT
118 select IRQ_CPU
119 select SYS_HAS_CPU_MIPS32_R1
120 select SYS_SUPPORTS_32BIT_KERNEL
121 select SYS_SUPPORTS_BIG_ENDIAN
122 select SYS_HAS_EARLY_PRINTK
123 select SWAP_IO_SPACE
124 select ARCH_REQUIRE_GPIOLIB
125 help
126 Support for BCM63XX based boards
127
128 config MIPS_COBALT
129 bool "Cobalt Server"
130 select CEVT_R4K
131 select CSRC_R4K
132 select CEVT_GT641XX
133 select DMA_NONCOHERENT
134 select HW_HAS_PCI
135 select I8253
136 select I8259
137 select IRQ_CPU
138 select IRQ_GT641XX
139 select PCI_GT64XXX_PCI0
140 select PCI
141 select SYS_HAS_CPU_NEVADA
142 select SYS_HAS_EARLY_PRINTK
143 select SYS_SUPPORTS_32BIT_KERNEL
144 select SYS_SUPPORTS_64BIT_KERNEL
145 select SYS_SUPPORTS_LITTLE_ENDIAN
146
147 config MACH_DECSTATION
148 bool "DECstations"
149 select BOOT_ELF32
150 select CEVT_DS1287
151 select CEVT_R4K
152 select CSRC_IOASIC
153 select CSRC_R4K
154 select CPU_DADDI_WORKAROUNDS if 64BIT
155 select CPU_R4000_WORKAROUNDS if 64BIT
156 select CPU_R4400_WORKAROUNDS if 64BIT
157 select DMA_NONCOHERENT
158 select NO_IOPORT
159 select IRQ_CPU
160 select SYS_HAS_CPU_R3000
161 select SYS_HAS_CPU_R4X00
162 select SYS_SUPPORTS_32BIT_KERNEL
163 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
164 select SYS_SUPPORTS_LITTLE_ENDIAN
165 select SYS_SUPPORTS_128HZ
166 select SYS_SUPPORTS_256HZ
167 select SYS_SUPPORTS_1024HZ
168 help
169 This enables support for DEC's MIPS based workstations. For details
170 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
171 DECstation porting pages on <http://decstation.unix-ag.org/>.
172
173 If you have one of the following DECstation Models you definitely
174 want to choose R4xx0 for the CPU Type:
175
176 DECstation 5000/50
177 DECstation 5000/150
178 DECstation 5000/260
179 DECsystem 5900/260
180
181 otherwise choose R3000.
182
183 config MACH_JAZZ
184 bool "Jazz family of machines"
185 select ARC
186 select ARC32
187 select ARCH_MAY_HAVE_PC_FDC
188 select CEVT_R4K
189 select CSRC_R4K
190 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
191 select GENERIC_ISA_DMA
192 select HAVE_PCSPKR_PLATFORM
193 select IRQ_CPU
194 select I8253
195 select I8259
196 select ISA
197 select SYS_HAS_CPU_R4X00
198 select SYS_SUPPORTS_32BIT_KERNEL
199 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
200 select SYS_SUPPORTS_100HZ
201 help
202 This a family of machines based on the MIPS R4030 chipset which was
203 used by several vendors to build RISC/os and Windows NT workstations.
204 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
205 Olivetti M700-10 workstations.
206
207 config MACH_JZ4740
208 bool "Ingenic JZ4740 based machines"
209 select SYS_HAS_CPU_MIPS32_R1
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_LITTLE_ENDIAN
212 select DMA_NONCOHERENT
213 select IRQ_CPU
214 select GENERIC_GPIO
215 select ARCH_REQUIRE_GPIOLIB
216 select SYS_HAS_EARLY_PRINTK
217 select HAVE_PWM
218 select HAVE_CLK
219 select GENERIC_IRQ_CHIP
220
221 config LANTIQ
222 bool "Lantiq based platforms"
223 select DMA_NONCOHERENT
224 select IRQ_CPU
225 select CEVT_R4K
226 select CSRC_R4K
227 select SYS_HAS_CPU_MIPS32_R1
228 select SYS_HAS_CPU_MIPS32_R2
229 select SYS_SUPPORTS_BIG_ENDIAN
230 select SYS_SUPPORTS_32BIT_KERNEL
231 select SYS_SUPPORTS_MULTITHREADING
232 select SYS_HAS_EARLY_PRINTK
233 select ARCH_REQUIRE_GPIOLIB
234 select SWAP_IO_SPACE
235 select BOOT_RAW
236 select HAVE_MACH_CLKDEV
237 select CLKDEV_LOOKUP
238 select USE_OF
239
240 config LASAT
241 bool "LASAT Networks platforms"
242 select CEVT_R4K
243 select CSRC_R4K
244 select DMA_NONCOHERENT
245 select SYS_HAS_EARLY_PRINTK
246 select HW_HAS_PCI
247 select IRQ_CPU
248 select PCI_GT64XXX_PCI0
249 select MIPS_NILE4
250 select R5000_CPU_SCACHE
251 select SYS_HAS_CPU_R5000
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
254 select SYS_SUPPORTS_LITTLE_ENDIAN
255
256 config MACH_LOONGSON
257 bool "Loongson family of machines"
258 select SYS_SUPPORTS_ZBOOT
259 help
260 This enables the support of Loongson family of machines.
261
262 Loongson is a family of general-purpose MIPS-compatible CPUs.
263 developed at Institute of Computing Technology (ICT),
264 Chinese Academy of Sciences (CAS) in the People's Republic
265 of China. The chief architect is Professor Weiwu Hu.
266
267 config MIPS_MALTA
268 bool "MIPS Malta board"
269 select ARCH_MAY_HAVE_PC_FDC
270 select BOOT_ELF32
271 select BOOT_RAW
272 select CEVT_R4K
273 select CSRC_R4K
274 select DMA_NONCOHERENT
275 select GENERIC_ISA_DMA
276 select HAVE_PCSPKR_PLATFORM
277 select IRQ_CPU
278 select IRQ_GIC
279 select HW_HAS_PCI
280 select I8253
281 select I8259
282 select MIPS_BOARDS_GEN
283 select MIPS_BONITO64
284 select MIPS_CPU_SCACHE
285 select PCI_GT64XXX_PCI0
286 select MIPS_MSC
287 select SWAP_IO_SPACE
288 select SYS_HAS_CPU_MIPS32_R1
289 select SYS_HAS_CPU_MIPS32_R2
290 select SYS_HAS_CPU_MIPS64_R1
291 select SYS_HAS_CPU_NEVADA
292 select SYS_HAS_CPU_RM7000
293 select SYS_HAS_EARLY_PRINTK
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_64BIT_KERNEL
296 select SYS_SUPPORTS_BIG_ENDIAN
297 select SYS_SUPPORTS_LITTLE_ENDIAN
298 select SYS_SUPPORTS_MIPS_CMP
299 select SYS_SUPPORTS_MULTITHREADING
300 select SYS_SUPPORTS_SMARTMIPS
301 select SYS_SUPPORTS_ZBOOT
302 help
303 This enables support for the MIPS Technologies Malta evaluation
304 board.
305
306 config MIPS_SIM
307 bool 'MIPS simulator (MIPSsim)'
308 select CEVT_R4K
309 select CSRC_R4K
310 select DMA_NONCOHERENT
311 select SYS_HAS_EARLY_PRINTK
312 select IRQ_CPU
313 select BOOT_RAW
314 select SYS_HAS_CPU_MIPS32_R1
315 select SYS_HAS_CPU_MIPS32_R2
316 select SYS_HAS_EARLY_PRINTK
317 select SYS_SUPPORTS_32BIT_KERNEL
318 select SYS_SUPPORTS_BIG_ENDIAN
319 select SYS_SUPPORTS_MULTITHREADING
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 help
322 This option enables support for MIPS Technologies MIPSsim software
323 emulator.
324
325 config NEC_MARKEINS
326 bool "NEC EMMA2RH Mark-eins board"
327 select SOC_EMMA2RH
328 select HW_HAS_PCI
329 help
330 This enables support for the NEC Electronics Mark-eins boards.
331
332 config MACH_VR41XX
333 bool "NEC VR4100 series based machines"
334 select CEVT_R4K
335 select CSRC_R4K
336 select SYS_HAS_CPU_VR41XX
337 select ARCH_REQUIRE_GPIOLIB
338
339 config NXP_STB220
340 bool "NXP STB220 board"
341 select SOC_PNX833X
342 help
343 Support for NXP Semiconductors STB220 Development Board.
344
345 config NXP_STB225
346 bool "NXP 225 board"
347 select SOC_PNX833X
348 select SOC_PNX8335
349 help
350 Support for NXP Semiconductors STB225 Development Board.
351
352 config PNX8550_JBS
353 bool "NXP PNX8550 based JBS board"
354 select PNX8550
355 select SYS_SUPPORTS_LITTLE_ENDIAN
356
357 config PNX8550_STB810
358 bool "NXP PNX8550 based STB810 board"
359 select PNX8550
360 select SYS_SUPPORTS_LITTLE_ENDIAN
361
362 config PMC_MSP
363 bool "PMC-Sierra MSP chipsets"
364 depends on EXPERIMENTAL
365 select CEVT_R4K
366 select CSRC_R4K
367 select DMA_NONCOHERENT
368 select SWAP_IO_SPACE
369 select NO_EXCEPT_FILL
370 select BOOT_RAW
371 select SYS_HAS_CPU_MIPS32_R1
372 select SYS_HAS_CPU_MIPS32_R2
373 select SYS_SUPPORTS_32BIT_KERNEL
374 select SYS_SUPPORTS_BIG_ENDIAN
375 select IRQ_CPU
376 select SERIAL_8250
377 select SERIAL_8250_CONSOLE
378 help
379 This adds support for the PMC-Sierra family of Multi-Service
380 Processor System-On-A-Chips. These parts include a number
381 of integrated peripherals, interfaces and DSPs in addition to
382 a variety of MIPS cores.
383
384 config PMC_YOSEMITE
385 bool "PMC-Sierra Yosemite eval board"
386 select CEVT_R4K
387 select CSRC_R4K
388 select DMA_COHERENT
389 select HW_HAS_PCI
390 select IRQ_CPU
391 select IRQ_CPU_RM7K
392 select IRQ_CPU_RM9K
393 select SWAP_IO_SPACE
394 select SYS_HAS_CPU_RM9000
395 select SYS_HAS_EARLY_PRINTK
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_64BIT_KERNEL
398 select SYS_SUPPORTS_BIG_ENDIAN
399 select SYS_SUPPORTS_HIGHMEM
400 select SYS_SUPPORTS_SMP
401 help
402 Yosemite is an evaluation board for the RM9000x2 processor
403 manufactured by PMC-Sierra.
404
405 config POWERTV
406 bool "Cisco PowerTV"
407 select BOOT_ELF32
408 select CEVT_R4K
409 select CPU_MIPSR2_IRQ_VI
410 select CPU_MIPSR2_IRQ_EI
411 select CSRC_POWERTV
412 select DMA_NONCOHERENT
413 select HW_HAS_PCI
414 select SYS_HAS_EARLY_PRINTK
415 select SYS_HAS_CPU_MIPS32_R2
416 select SYS_SUPPORTS_32BIT_KERNEL
417 select SYS_SUPPORTS_BIG_ENDIAN
418 select SYS_SUPPORTS_HIGHMEM
419 select USB_OHCI_LITTLE_ENDIAN
420 help
421 This enables support for the Cisco PowerTV Platform.
422
423 config SGI_IP22
424 bool "SGI IP22 (Indy/Indigo2)"
425 select ARC
426 select ARC32
427 select BOOT_ELF32
428 select CEVT_R4K
429 select CSRC_R4K
430 select DEFAULT_SGI_PARTITION
431 select DMA_NONCOHERENT
432 select HW_HAS_EISA
433 select I8253
434 select I8259
435 select IP22_CPU_SCACHE
436 select IRQ_CPU
437 select GENERIC_ISA_DMA_SUPPORT_BROKEN
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_R4X00
446 select SYS_HAS_CPU_R5000
447 #
448 # Disable EARLY_PRINTK for now since it leads to overwritten prom
449 # memory during early boot on some machines.
450 #
451 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
452 # for a more details discussion
453 #
454 # select SYS_HAS_EARLY_PRINTK
455 select SYS_SUPPORTS_32BIT_KERNEL
456 select SYS_SUPPORTS_64BIT_KERNEL
457 select SYS_SUPPORTS_BIG_ENDIAN
458 help
459 This are the SGI Indy, Challenge S and Indigo2, as well as certain
460 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
461 that runs on these, say Y here.
462
463 config SGI_IP27
464 bool "SGI IP27 (Origin200/2000)"
465 select ARC
466 select ARC64
467 select BOOT_ELF64
468 select DEFAULT_SGI_PARTITION
469 select DMA_COHERENT
470 select SYS_HAS_EARLY_PRINTK
471 select HW_HAS_PCI
472 select NR_CPUS_DEFAULT_64
473 select SYS_HAS_CPU_R10000
474 select SYS_SUPPORTS_64BIT_KERNEL
475 select SYS_SUPPORTS_BIG_ENDIAN
476 select SYS_SUPPORTS_NUMA
477 select SYS_SUPPORTS_SMP
478 help
479 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
480 workstations. To compile a Linux kernel that runs on these, say Y
481 here.
482
483 config SGI_IP28
484 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
485 depends on EXPERIMENTAL
486 select ARC
487 select ARC64
488 select BOOT_ELF64
489 select CEVT_R4K
490 select CSRC_R4K
491 select DEFAULT_SGI_PARTITION
492 select DMA_NONCOHERENT
493 select GENERIC_ISA_DMA_SUPPORT_BROKEN
494 select IRQ_CPU
495 select HW_HAS_EISA
496 select I8253
497 select I8259
498 select SGI_HAS_I8042
499 select SGI_HAS_INDYDOG
500 select SGI_HAS_HAL2
501 select SGI_HAS_SEEQ
502 select SGI_HAS_WD93
503 select SGI_HAS_ZILOG
504 select SWAP_IO_SPACE
505 select SYS_HAS_CPU_R10000
506 #
507 # Disable EARLY_PRINTK for now since it leads to overwritten prom
508 # memory during early boot on some machines.
509 #
510 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
511 # for a more details discussion
512 #
513 # select SYS_HAS_EARLY_PRINTK
514 select SYS_SUPPORTS_64BIT_KERNEL
515 select SYS_SUPPORTS_BIG_ENDIAN
516 help
517 This is the SGI Indigo2 with R10000 processor. To compile a Linux
518 kernel that runs on these, say Y here.
519
520 config SGI_IP32
521 bool "SGI IP32 (O2)"
522 select ARC
523 select ARC32
524 select BOOT_ELF32
525 select CEVT_R4K
526 select CSRC_R4K
527 select DMA_NONCOHERENT
528 select HW_HAS_PCI
529 select IRQ_CPU
530 select R5000_CPU_SCACHE
531 select RM7000_CPU_SCACHE
532 select SYS_HAS_CPU_R5000
533 select SYS_HAS_CPU_R10000 if BROKEN
534 select SYS_HAS_CPU_RM7000
535 select SYS_HAS_CPU_NEVADA
536 select SYS_SUPPORTS_64BIT_KERNEL
537 select SYS_SUPPORTS_BIG_ENDIAN
538 help
539 If you want this kernel to run on SGI O2 workstation, say Y here.
540
541 config SIBYTE_CRHINE
542 bool "Sibyte BCM91120C-CRhine"
543 depends on EXPERIMENTAL
544 select BOOT_ELF32
545 select DMA_COHERENT
546 select SIBYTE_BCM1120
547 select SWAP_IO_SPACE
548 select SYS_HAS_CPU_SB1
549 select SYS_SUPPORTS_BIG_ENDIAN
550 select SYS_SUPPORTS_LITTLE_ENDIAN
551
552 config SIBYTE_CARMEL
553 bool "Sibyte BCM91120x-Carmel"
554 depends on EXPERIMENTAL
555 select BOOT_ELF32
556 select DMA_COHERENT
557 select SIBYTE_BCM1120
558 select SWAP_IO_SPACE
559 select SYS_HAS_CPU_SB1
560 select SYS_SUPPORTS_BIG_ENDIAN
561 select SYS_SUPPORTS_LITTLE_ENDIAN
562
563 config SIBYTE_CRHONE
564 bool "Sibyte BCM91125C-CRhone"
565 depends on EXPERIMENTAL
566 select BOOT_ELF32
567 select DMA_COHERENT
568 select SIBYTE_BCM1125
569 select SWAP_IO_SPACE
570 select SYS_HAS_CPU_SB1
571 select SYS_SUPPORTS_BIG_ENDIAN
572 select SYS_SUPPORTS_HIGHMEM
573 select SYS_SUPPORTS_LITTLE_ENDIAN
574
575 config SIBYTE_RHONE
576 bool "Sibyte BCM91125E-Rhone"
577 depends on EXPERIMENTAL
578 select BOOT_ELF32
579 select DMA_COHERENT
580 select SIBYTE_BCM1125H
581 select SWAP_IO_SPACE
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_LITTLE_ENDIAN
585
586 config SIBYTE_SWARM
587 bool "Sibyte BCM91250A-SWARM"
588 select BOOT_ELF32
589 select DMA_COHERENT
590 select HAVE_PATA_PLATFORM
591 select NR_CPUS_DEFAULT_2
592 select SIBYTE_SB1250
593 select SWAP_IO_SPACE
594 select SYS_HAS_CPU_SB1
595 select SYS_SUPPORTS_BIG_ENDIAN
596 select SYS_SUPPORTS_HIGHMEM
597 select SYS_SUPPORTS_LITTLE_ENDIAN
598 select ZONE_DMA32 if 64BIT
599
600 config SIBYTE_LITTLESUR
601 bool "Sibyte BCM91250C2-LittleSur"
602 depends on EXPERIMENTAL
603 select BOOT_ELF32
604 select DMA_COHERENT
605 select HAVE_PATA_PLATFORM
606 select NR_CPUS_DEFAULT_2
607 select SIBYTE_SB1250
608 select SWAP_IO_SPACE
609 select SYS_HAS_CPU_SB1
610 select SYS_SUPPORTS_BIG_ENDIAN
611 select SYS_SUPPORTS_HIGHMEM
612 select SYS_SUPPORTS_LITTLE_ENDIAN
613
614 config SIBYTE_SENTOSA
615 bool "Sibyte BCM91250E-Sentosa"
616 depends on EXPERIMENTAL
617 select BOOT_ELF32
618 select DMA_COHERENT
619 select NR_CPUS_DEFAULT_2
620 select SIBYTE_SB1250
621 select SWAP_IO_SPACE
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_LITTLE_ENDIAN
625
626 config SIBYTE_BIGSUR
627 bool "Sibyte BCM91480B-BigSur"
628 select BOOT_ELF32
629 select DMA_COHERENT
630 select NR_CPUS_DEFAULT_4
631 select SIBYTE_BCM1x80
632 select SWAP_IO_SPACE
633 select SYS_HAS_CPU_SB1
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_HIGHMEM
636 select SYS_SUPPORTS_LITTLE_ENDIAN
637 select ZONE_DMA32 if 64BIT
638
639 config SNI_RM
640 bool "SNI RM200/300/400"
641 select ARC if CPU_LITTLE_ENDIAN
642 select ARC32 if CPU_LITTLE_ENDIAN
643 select SNIPROM if CPU_BIG_ENDIAN
644 select ARCH_MAY_HAVE_PC_FDC
645 select BOOT_ELF32
646 select CEVT_R4K
647 select CSRC_R4K
648 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
649 select DMA_NONCOHERENT
650 select GENERIC_ISA_DMA
651 select HAVE_PCSPKR_PLATFORM
652 select HW_HAS_EISA
653 select HW_HAS_PCI
654 select IRQ_CPU
655 select I8253
656 select I8259
657 select ISA
658 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
659 select SYS_HAS_CPU_R4X00
660 select SYS_HAS_CPU_R5000
661 select SYS_HAS_CPU_R10000
662 select R5000_CPU_SCACHE
663 select SYS_HAS_EARLY_PRINTK
664 select SYS_SUPPORTS_32BIT_KERNEL
665 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
666 select SYS_SUPPORTS_BIG_ENDIAN
667 select SYS_SUPPORTS_HIGHMEM
668 select SYS_SUPPORTS_LITTLE_ENDIAN
669 help
670 The SNI RM200/300/400 are MIPS-based machines manufactured by
671 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
672 Technology and now in turn merged with Fujitsu. Say Y here to
673 support this machine type.
674
675 config MACH_TX39XX
676 bool "Toshiba TX39 series based machines"
677
678 config MACH_TX49XX
679 bool "Toshiba TX49 series based machines"
680
681 config MIKROTIK_RB532
682 bool "Mikrotik RB532 boards"
683 select CEVT_R4K
684 select CSRC_R4K
685 select DMA_NONCOHERENT
686 select HW_HAS_PCI
687 select IRQ_CPU
688 select SYS_HAS_CPU_MIPS32_R1
689 select SYS_SUPPORTS_32BIT_KERNEL
690 select SYS_SUPPORTS_LITTLE_ENDIAN
691 select SWAP_IO_SPACE
692 select BOOT_RAW
693 select ARCH_REQUIRE_GPIOLIB
694 help
695 Support the Mikrotik(tm) RouterBoard 532 series,
696 based on the IDT RC32434 SoC.
697
698 config WR_PPMC
699 bool "Wind River PPMC board"
700 select CEVT_R4K
701 select CSRC_R4K
702 select IRQ_CPU
703 select BOOT_ELF32
704 select DMA_NONCOHERENT
705 select HW_HAS_PCI
706 select PCI_GT64XXX_PCI0
707 select SWAP_IO_SPACE
708 select SYS_HAS_CPU_MIPS32_R1
709 select SYS_HAS_CPU_MIPS32_R2
710 select SYS_HAS_CPU_MIPS64_R1
711 select SYS_HAS_CPU_NEVADA
712 select SYS_HAS_CPU_RM7000
713 select SYS_SUPPORTS_32BIT_KERNEL
714 select SYS_SUPPORTS_64BIT_KERNEL
715 select SYS_SUPPORTS_BIG_ENDIAN
716 select SYS_SUPPORTS_LITTLE_ENDIAN
717 help
718 This enables support for the Wind River MIPS32 4KC PPMC evaluation
719 board, which is based on GT64120 bridge chip.
720
721 config CAVIUM_OCTEON_SIMULATOR
722 bool "Cavium Networks Octeon Simulator"
723 select CEVT_R4K
724 select 64BIT_PHYS_ADDR
725 select DMA_COHERENT
726 select SYS_SUPPORTS_64BIT_KERNEL
727 select SYS_SUPPORTS_BIG_ENDIAN
728 select SYS_SUPPORTS_HOTPLUG_CPU
729 select SYS_HAS_CPU_CAVIUM_OCTEON
730 select HOLES_IN_ZONE
731 help
732 The Octeon simulator is software performance model of the Cavium
733 Octeon Processor. It supports simulating Octeon processors on x86
734 hardware.
735
736 config CAVIUM_OCTEON_REFERENCE_BOARD
737 bool "Cavium Networks Octeon reference board"
738 select CEVT_R4K
739 select 64BIT_PHYS_ADDR
740 select DMA_COHERENT
741 select SYS_SUPPORTS_64BIT_KERNEL
742 select SYS_SUPPORTS_BIG_ENDIAN
743 select SYS_SUPPORTS_HOTPLUG_CPU
744 select SYS_HAS_EARLY_PRINTK
745 select SYS_HAS_CPU_CAVIUM_OCTEON
746 select SWAP_IO_SPACE
747 select HW_HAS_PCI
748 select ARCH_SUPPORTS_MSI
749 select ZONE_DMA32
750 select USB_ARCH_HAS_OHCI
751 select USB_ARCH_HAS_EHCI
752 select HOLES_IN_ZONE
753 help
754 This option supports all of the Octeon reference boards from Cavium
755 Networks. It builds a kernel that dynamically determines the Octeon
756 CPU type and supports all known board reference implementations.
757 Some of the supported boards are:
758 EBT3000
759 EBH3000
760 EBH3100
761 Thunder
762 Kodama
763 Hikari
764 Say Y here for most Octeon reference boards.
765
766 config NLM_XLR_BOARD
767 bool "Netlogic XLR/XLS based systems"
768 depends on EXPERIMENTAL
769 select BOOT_ELF32
770 select NLM_COMMON
771 select SYS_HAS_CPU_XLR
772 select SYS_SUPPORTS_SMP
773 select HW_HAS_PCI
774 select SWAP_IO_SPACE
775 select SYS_SUPPORTS_32BIT_KERNEL
776 select SYS_SUPPORTS_64BIT_KERNEL
777 select 64BIT_PHYS_ADDR
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select DMA_COHERENT
781 select NR_CPUS_DEFAULT_32
782 select CEVT_R4K
783 select CSRC_R4K
784 select IRQ_CPU
785 select ARCH_SUPPORTS_MSI
786 select ZONE_DMA if 64BIT
787 select SYNC_R4K
788 select SYS_HAS_EARLY_PRINTK
789 help
790 Support for systems based on Netlogic XLR and XLS processors.
791 Say Y here if you have a XLR or XLS based board.
792
793 config NLM_XLP_BOARD
794 bool "Netlogic XLP based systems"
795 depends on EXPERIMENTAL
796 select BOOT_ELF32
797 select NLM_COMMON
798 select SYS_HAS_CPU_XLP
799 select SYS_SUPPORTS_SMP
800 select HW_HAS_PCI
801 select SWAP_IO_SPACE
802 select SYS_SUPPORTS_32BIT_KERNEL
803 select SYS_SUPPORTS_64BIT_KERNEL
804 select 64BIT_PHYS_ADDR
805 select SYS_SUPPORTS_BIG_ENDIAN
806 select SYS_SUPPORTS_LITTLE_ENDIAN
807 select SYS_SUPPORTS_HIGHMEM
808 select DMA_COHERENT
809 select NR_CPUS_DEFAULT_32
810 select CEVT_R4K
811 select CSRC_R4K
812 select IRQ_CPU
813 select ZONE_DMA if 64BIT
814 select SYNC_R4K
815 select SYS_HAS_EARLY_PRINTK
816 help
817 This board is based on Netlogic XLP Processor.
818 Say Y here if you have a XLP based board.
819
820 endchoice
821
822 source "arch/mips/alchemy/Kconfig"
823 source "arch/mips/ath79/Kconfig"
824 source "arch/mips/bcm47xx/Kconfig"
825 source "arch/mips/bcm63xx/Kconfig"
826 source "arch/mips/jazz/Kconfig"
827 source "arch/mips/jz4740/Kconfig"
828 source "arch/mips/lantiq/Kconfig"
829 source "arch/mips/lasat/Kconfig"
830 source "arch/mips/pmc-sierra/Kconfig"
831 source "arch/mips/powertv/Kconfig"
832 source "arch/mips/sgi-ip27/Kconfig"
833 source "arch/mips/sibyte/Kconfig"
834 source "arch/mips/txx9/Kconfig"
835 source "arch/mips/vr41xx/Kconfig"
836 source "arch/mips/cavium-octeon/Kconfig"
837 source "arch/mips/loongson/Kconfig"
838 source "arch/mips/netlogic/Kconfig"
839
840 endmenu
841
842 config RWSEM_GENERIC_SPINLOCK
843 bool
844 default y
845
846 config RWSEM_XCHGADD_ALGORITHM
847 bool
848
849 config ARCH_HAS_ILOG2_U32
850 bool
851 default n
852
853 config ARCH_HAS_ILOG2_U64
854 bool
855 default n
856
857 config GENERIC_HWEIGHT
858 bool
859 default y
860
861 config GENERIC_CALIBRATE_DELAY
862 bool
863 default y
864
865 config SCHED_OMIT_FRAME_POINTER
866 bool
867 default y
868
869 #
870 # Select some configuration options automatically based on user selections.
871 #
872 config ARC
873 bool
874
875 config ARCH_MAY_HAVE_PC_FDC
876 bool
877
878 config BOOT_RAW
879 bool
880
881 config CEVT_BCM1480
882 bool
883
884 config CEVT_DS1287
885 bool
886
887 config CEVT_GT641XX
888 bool
889
890 config CEVT_R4K_LIB
891 bool
892
893 config CEVT_R4K
894 select CEVT_R4K_LIB
895 bool
896
897 config CEVT_SB1250
898 bool
899
900 config CEVT_TXX9
901 bool
902
903 config CSRC_BCM1480
904 bool
905
906 config CSRC_IOASIC
907 bool
908
909 config CSRC_POWERTV
910 bool
911
912 config CSRC_R4K_LIB
913 bool
914
915 config CSRC_R4K
916 select CSRC_R4K_LIB
917 bool
918
919 config CSRC_SB1250
920 bool
921
922 config GPIO_TXX9
923 select GENERIC_GPIO
924 select ARCH_REQUIRE_GPIOLIB
925 bool
926
927 config CFE
928 bool
929
930 config ARCH_DMA_ADDR_T_64BIT
931 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
932
933 config DMA_COHERENT
934 bool
935
936 config DMA_NONCOHERENT
937 bool
938 select NEED_DMA_MAP_STATE
939
940 config NEED_DMA_MAP_STATE
941 bool
942
943 config SYS_HAS_EARLY_PRINTK
944 bool
945
946 config HOTPLUG_CPU
947 bool "Support for hot-pluggable CPUs"
948 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
949 help
950 Say Y here to allow turning CPUs off and on. CPUs can be
951 controlled through /sys/devices/system/cpu.
952 (Note: power management support will enable this option
953 automatically on SMP systems. )
954 Say N if you want to disable CPU hotplug.
955
956 config SYS_SUPPORTS_HOTPLUG_CPU
957 bool
958
959 config I8259
960 bool
961
962 config MIPS_BONITO64
963 bool
964
965 config MIPS_MSC
966 bool
967
968 config MIPS_NILE4
969 bool
970
971 config MIPS_DISABLE_OBSOLETE_IDE
972 bool
973
974 config SYNC_R4K
975 bool
976
977 config MIPS_MACHINE
978 def_bool n
979
980 config NO_IOPORT
981 def_bool n
982
983 config GENERIC_ISA_DMA
984 bool
985 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
986 select ISA_DMA_API
987
988 config GENERIC_ISA_DMA_SUPPORT_BROKEN
989 bool
990 select GENERIC_ISA_DMA
991
992 config ISA_DMA_API
993 bool
994
995 config GENERIC_GPIO
996 bool
997
998 config HOLES_IN_ZONE
999 bool
1000
1001 #
1002 # Endianness selection. Sufficiently obscure so many users don't know what to
1003 # answer,so we try hard to limit the available choices. Also the use of a
1004 # choice statement should be more obvious to the user.
1005 #
1006 choice
1007 prompt "Endianness selection"
1008 help
1009 Some MIPS machines can be configured for either little or big endian
1010 byte order. These modes require different kernels and a different
1011 Linux distribution. In general there is one preferred byteorder for a
1012 particular system but some systems are just as commonly used in the
1013 one or the other endianness.
1014
1015 config CPU_BIG_ENDIAN
1016 bool "Big endian"
1017 depends on SYS_SUPPORTS_BIG_ENDIAN
1018
1019 config CPU_LITTLE_ENDIAN
1020 bool "Little endian"
1021 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1022 help
1023
1024 endchoice
1025
1026 config EXPORT_UASM
1027 bool
1028
1029 config SYS_SUPPORTS_APM_EMULATION
1030 bool
1031
1032 config SYS_SUPPORTS_BIG_ENDIAN
1033 bool
1034
1035 config SYS_SUPPORTS_LITTLE_ENDIAN
1036 bool
1037
1038 config SYS_SUPPORTS_HUGETLBFS
1039 bool
1040 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1041 default y
1042
1043 config IRQ_CPU
1044 bool
1045
1046 config IRQ_CPU_RM7K
1047 bool
1048
1049 config IRQ_CPU_RM9K
1050 bool
1051
1052 config IRQ_MSP_SLP
1053 bool
1054
1055 config IRQ_MSP_CIC
1056 bool
1057
1058 config IRQ_TXX9
1059 bool
1060
1061 config IRQ_GT641XX
1062 bool
1063
1064 config IRQ_GIC
1065 bool
1066
1067 config MIPS_BOARDS_GEN
1068 bool
1069
1070 config PCI_GT64XXX_PCI0
1071 bool
1072
1073 config NO_EXCEPT_FILL
1074 bool
1075
1076 config MIPS_RM9122
1077 bool
1078 select SERIAL_RM9000
1079
1080 config SOC_EMMA2RH
1081 bool
1082 select CEVT_R4K
1083 select CSRC_R4K
1084 select DMA_NONCOHERENT
1085 select IRQ_CPU
1086 select SWAP_IO_SPACE
1087 select SYS_HAS_CPU_R5500
1088 select SYS_SUPPORTS_32BIT_KERNEL
1089 select SYS_SUPPORTS_64BIT_KERNEL
1090 select SYS_SUPPORTS_BIG_ENDIAN
1091
1092 config SOC_PNX833X
1093 bool
1094 select CEVT_R4K
1095 select CSRC_R4K
1096 select IRQ_CPU
1097 select DMA_NONCOHERENT
1098 select SYS_HAS_CPU_MIPS32_R2
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_LITTLE_ENDIAN
1101 select SYS_SUPPORTS_BIG_ENDIAN
1102 select GENERIC_GPIO
1103 select CPU_MIPSR2_IRQ_VI
1104
1105 config SOC_PNX8335
1106 bool
1107 select SOC_PNX833X
1108
1109 config PNX8550
1110 bool
1111 select SOC_PNX8550
1112
1113 config SOC_PNX8550
1114 bool
1115 select DMA_NONCOHERENT
1116 select HW_HAS_PCI
1117 select SYS_HAS_CPU_MIPS32_R1
1118 select SYS_HAS_EARLY_PRINTK
1119 select SYS_SUPPORTS_32BIT_KERNEL
1120 select GENERIC_GPIO
1121
1122 config SWAP_IO_SPACE
1123 bool
1124
1125 config SERIAL_RM9000
1126 bool
1127
1128 config SGI_HAS_INDYDOG
1129 bool
1130
1131 config SGI_HAS_HAL2
1132 bool
1133
1134 config SGI_HAS_SEEQ
1135 bool
1136
1137 config SGI_HAS_WD93
1138 bool
1139
1140 config SGI_HAS_ZILOG
1141 bool
1142
1143 config SGI_HAS_I8042
1144 bool
1145
1146 config DEFAULT_SGI_PARTITION
1147 bool
1148
1149 config ARC32
1150 bool
1151
1152 config SNIPROM
1153 bool
1154
1155 config BOOT_ELF32
1156 bool
1157
1158 config MIPS_L1_CACHE_SHIFT
1159 int
1160 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1161 default "6" if MIPS_CPU_SCACHE
1162 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1163 default "5"
1164
1165 config HAVE_STD_PC_SERIAL_PORT
1166 bool
1167
1168 config ARC_CONSOLE
1169 bool "ARC console support"
1170 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1171
1172 config ARC_MEMORY
1173 bool
1174 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1175 default y
1176
1177 config ARC_PROMLIB
1178 bool
1179 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1180 default y
1181
1182 config ARC64
1183 bool
1184
1185 config BOOT_ELF64
1186 bool
1187
1188 menu "CPU selection"
1189
1190 choice
1191 prompt "CPU type"
1192 default CPU_R4X00
1193
1194 config CPU_LOONGSON2E
1195 bool "Loongson 2E"
1196 depends on SYS_HAS_CPU_LOONGSON2E
1197 select CPU_LOONGSON2
1198 help
1199 The Loongson 2E processor implements the MIPS III instruction set
1200 with many extensions.
1201
1202 It has an internal FPGA northbridge, which is compatible to
1203 bonito64.
1204
1205 config CPU_LOONGSON2F
1206 bool "Loongson 2F"
1207 depends on SYS_HAS_CPU_LOONGSON2F
1208 select CPU_LOONGSON2
1209 select GENERIC_GPIO
1210 select ARCH_REQUIRE_GPIOLIB
1211 help
1212 The Loongson 2F processor implements the MIPS III instruction set
1213 with many extensions.
1214
1215 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1216 have a similar programming interface with FPGA northbridge used in
1217 Loongson2E.
1218
1219 config CPU_MIPS32_R1
1220 bool "MIPS32 Release 1"
1221 depends on SYS_HAS_CPU_MIPS32_R1
1222 select CPU_HAS_PREFETCH
1223 select CPU_SUPPORTS_32BIT_KERNEL
1224 select CPU_SUPPORTS_HIGHMEM
1225 help
1226 Choose this option to build a kernel for release 1 or later of the
1227 MIPS32 architecture. Most modern embedded systems with a 32-bit
1228 MIPS processor are based on a MIPS32 processor. If you know the
1229 specific type of processor in your system, choose those that one
1230 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1231 Release 2 of the MIPS32 architecture is available since several
1232 years so chances are you even have a MIPS32 Release 2 processor
1233 in which case you should choose CPU_MIPS32_R2 instead for better
1234 performance.
1235
1236 config CPU_MIPS32_R2
1237 bool "MIPS32 Release 2"
1238 depends on SYS_HAS_CPU_MIPS32_R2
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_HIGHMEM
1242 help
1243 Choose this option to build a kernel for release 2 or later of the
1244 MIPS32 architecture. Most modern embedded systems with a 32-bit
1245 MIPS processor are based on a MIPS32 processor. If you know the
1246 specific type of processor in your system, choose those that one
1247 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1248
1249 config CPU_MIPS64_R1
1250 bool "MIPS64 Release 1"
1251 depends on SYS_HAS_CPU_MIPS64_R1
1252 select CPU_HAS_PREFETCH
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_64BIT_KERNEL
1255 select CPU_SUPPORTS_HIGHMEM
1256 select CPU_SUPPORTS_HUGEPAGES
1257 help
1258 Choose this option to build a kernel for release 1 or later of the
1259 MIPS64 architecture. Many modern embedded systems with a 64-bit
1260 MIPS processor are based on a MIPS64 processor. If you know the
1261 specific type of processor in your system, choose those that one
1262 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1263 Release 2 of the MIPS64 architecture is available since several
1264 years so chances are you even have a MIPS64 Release 2 processor
1265 in which case you should choose CPU_MIPS64_R2 instead for better
1266 performance.
1267
1268 config CPU_MIPS64_R2
1269 bool "MIPS64 Release 2"
1270 depends on SYS_HAS_CPU_MIPS64_R2
1271 select CPU_HAS_PREFETCH
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1274 select CPU_SUPPORTS_HIGHMEM
1275 select CPU_SUPPORTS_HUGEPAGES
1276 help
1277 Choose this option to build a kernel for release 2 or later of the
1278 MIPS64 architecture. Many modern embedded systems with a 64-bit
1279 MIPS processor are based on a MIPS64 processor. If you know the
1280 specific type of processor in your system, choose those that one
1281 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1282
1283 config CPU_R3000
1284 bool "R3000"
1285 depends on SYS_HAS_CPU_R3000
1286 select CPU_HAS_WB
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1289 help
1290 Please make sure to pick the right CPU type. Linux/MIPS is not
1291 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1292 *not* work on R4000 machines and vice versa. However, since most
1293 of the supported machines have an R4000 (or similar) CPU, R4x00
1294 might be a safe bet. If the resulting kernel does not work,
1295 try to recompile with R3000.
1296
1297 config CPU_TX39XX
1298 bool "R39XX"
1299 depends on SYS_HAS_CPU_TX39XX
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301
1302 config CPU_VR41XX
1303 bool "R41xx"
1304 depends on SYS_HAS_CPU_VR41XX
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_64BIT_KERNEL
1307 help
1308 The options selects support for the NEC VR4100 series of processors.
1309 Only choose this option if you have one of these processors as a
1310 kernel built with this option will not run on any other type of
1311 processor or vice versa.
1312
1313 config CPU_R4300
1314 bool "R4300"
1315 depends on SYS_HAS_CPU_R4300
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1318 help
1319 MIPS Technologies R4300-series processors.
1320
1321 config CPU_R4X00
1322 bool "R4x00"
1323 depends on SYS_HAS_CPU_R4X00
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1326 help
1327 MIPS Technologies R4000-series processors other than 4300, including
1328 the R4000, R4400, R4600, and 4700.
1329
1330 config CPU_TX49XX
1331 bool "R49XX"
1332 depends on SYS_HAS_CPU_TX49XX
1333 select CPU_HAS_PREFETCH
1334 select CPU_SUPPORTS_32BIT_KERNEL
1335 select CPU_SUPPORTS_64BIT_KERNEL
1336
1337 config CPU_R5000
1338 bool "R5000"
1339 depends on SYS_HAS_CPU_R5000
1340 select CPU_SUPPORTS_32BIT_KERNEL
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 help
1343 MIPS Technologies R5000-series processors other than the Nevada.
1344
1345 config CPU_R5432
1346 bool "R5432"
1347 depends on SYS_HAS_CPU_R5432
1348 select CPU_SUPPORTS_32BIT_KERNEL
1349 select CPU_SUPPORTS_64BIT_KERNEL
1350
1351 config CPU_R5500
1352 bool "R5500"
1353 depends on SYS_HAS_CPU_R5500
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1357 help
1358 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1359 instruction set.
1360
1361 config CPU_R6000
1362 bool "R6000"
1363 depends on EXPERIMENTAL
1364 depends on SYS_HAS_CPU_R6000
1365 select CPU_SUPPORTS_32BIT_KERNEL
1366 help
1367 MIPS Technologies R6000 and R6000A series processors. Note these
1368 processors are extremely rare and the support for them is incomplete.
1369
1370 config CPU_NEVADA
1371 bool "RM52xx"
1372 depends on SYS_HAS_CPU_NEVADA
1373 select CPU_SUPPORTS_32BIT_KERNEL
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 help
1376 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1377
1378 config CPU_R8000
1379 bool "R8000"
1380 depends on EXPERIMENTAL
1381 depends on SYS_HAS_CPU_R8000
1382 select CPU_HAS_PREFETCH
1383 select CPU_SUPPORTS_64BIT_KERNEL
1384 help
1385 MIPS Technologies R8000 processors. Note these processors are
1386 uncommon and the support for them is incomplete.
1387
1388 config CPU_R10000
1389 bool "R10000"
1390 depends on SYS_HAS_CPU_R10000
1391 select CPU_HAS_PREFETCH
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HIGHMEM
1395 help
1396 MIPS Technologies R10000-series processors.
1397
1398 config CPU_RM7000
1399 bool "RM7000"
1400 depends on SYS_HAS_CPU_RM7000
1401 select CPU_HAS_PREFETCH
1402 select CPU_SUPPORTS_32BIT_KERNEL
1403 select CPU_SUPPORTS_64BIT_KERNEL
1404 select CPU_SUPPORTS_HIGHMEM
1405
1406 config CPU_RM9000
1407 bool "RM9000"
1408 depends on SYS_HAS_CPU_RM9000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select WEAK_ORDERING
1414
1415 config CPU_SB1
1416 bool "SB1"
1417 depends on SYS_HAS_CPU_SB1
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select WEAK_ORDERING
1422
1423 config CPU_CAVIUM_OCTEON
1424 bool "Cavium Octeon processor"
1425 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1426 select CPU_HAS_PREFETCH
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select SYS_SUPPORTS_SMP
1429 select NR_CPUS_DEFAULT_16
1430 select WEAK_ORDERING
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_HUGEPAGES
1433 help
1434 The Cavium Octeon processor is a highly integrated chip containing
1435 many ethernet hardware widgets for networking tasks. The processor
1436 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1437 Full details can be found at http://www.caviumnetworks.com.
1438
1439 config CPU_BMIPS3300
1440 bool "BMIPS3300"
1441 depends on SYS_HAS_CPU_BMIPS3300
1442 select CPU_BMIPS
1443 help
1444 Broadcom BMIPS3300 processors.
1445
1446 config CPU_BMIPS4350
1447 bool "BMIPS4350"
1448 depends on SYS_HAS_CPU_BMIPS4350
1449 select CPU_BMIPS
1450 select SYS_SUPPORTS_SMP
1451 select SYS_SUPPORTS_HOTPLUG_CPU
1452 help
1453 Broadcom BMIPS4350 ("VIPER") processors.
1454
1455 config CPU_BMIPS4380
1456 bool "BMIPS4380"
1457 depends on SYS_HAS_CPU_BMIPS4380
1458 select CPU_BMIPS
1459 select SYS_SUPPORTS_SMP
1460 select SYS_SUPPORTS_HOTPLUG_CPU
1461 help
1462 Broadcom BMIPS4380 processors.
1463
1464 config CPU_BMIPS5000
1465 bool "BMIPS5000"
1466 depends on SYS_HAS_CPU_BMIPS5000
1467 select CPU_BMIPS
1468 select CPU_SUPPORTS_HIGHMEM
1469 select MIPS_CPU_SCACHE
1470 select SYS_SUPPORTS_SMP
1471 select SYS_SUPPORTS_HOTPLUG_CPU
1472 help
1473 Broadcom BMIPS5000 processors.
1474
1475 config CPU_XLR
1476 bool "Netlogic XLR SoC"
1477 depends on SYS_HAS_CPU_XLR
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select CPU_SUPPORTS_HIGHMEM
1481 select WEAK_ORDERING
1482 select WEAK_REORDERING_BEYOND_LLSC
1483 select CPU_SUPPORTS_HUGEPAGES
1484 help
1485 Netlogic Microsystems XLR/XLS processors.
1486
1487 config CPU_XLP
1488 bool "Netlogic XLP SoC"
1489 depends on SYS_HAS_CPU_XLP
1490 select CPU_SUPPORTS_32BIT_KERNEL
1491 select CPU_SUPPORTS_64BIT_KERNEL
1492 select CPU_SUPPORTS_HIGHMEM
1493 select CPU_HAS_LLSC
1494 select WEAK_ORDERING
1495 select WEAK_REORDERING_BEYOND_LLSC
1496 select CPU_HAS_PREFETCH
1497 help
1498 Netlogic Microsystems XLP processors.
1499 endchoice
1500
1501 if CPU_LOONGSON2F
1502 config CPU_NOP_WORKAROUNDS
1503 bool
1504
1505 config CPU_JUMP_WORKAROUNDS
1506 bool
1507
1508 config CPU_LOONGSON2F_WORKAROUNDS
1509 bool "Loongson 2F Workarounds"
1510 default y
1511 select CPU_NOP_WORKAROUNDS
1512 select CPU_JUMP_WORKAROUNDS
1513 help
1514 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1515 require workarounds. Without workarounds the system may hang
1516 unexpectedly. For more information please refer to the gas
1517 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1518
1519 Loongson 2F03 and later have fixed these issues and no workarounds
1520 are needed. The workarounds have no significant side effect on them
1521 but may decrease the performance of the system so this option should
1522 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1523 systems.
1524
1525 If unsure, please say Y.
1526 endif # CPU_LOONGSON2F
1527
1528 config SYS_SUPPORTS_ZBOOT
1529 bool
1530 select HAVE_KERNEL_GZIP
1531 select HAVE_KERNEL_BZIP2
1532 select HAVE_KERNEL_LZMA
1533 select HAVE_KERNEL_LZO
1534
1535 config SYS_SUPPORTS_ZBOOT_UART16550
1536 bool
1537 select SYS_SUPPORTS_ZBOOT
1538
1539 config CPU_LOONGSON2
1540 bool
1541 select CPU_SUPPORTS_32BIT_KERNEL
1542 select CPU_SUPPORTS_64BIT_KERNEL
1543 select CPU_SUPPORTS_HIGHMEM
1544
1545 config CPU_BMIPS
1546 bool
1547 select CPU_MIPS32
1548 select CPU_SUPPORTS_32BIT_KERNEL
1549 select DMA_NONCOHERENT
1550 select IRQ_CPU
1551 select SWAP_IO_SPACE
1552 select WEAK_ORDERING
1553
1554 config SYS_HAS_CPU_LOONGSON2E
1555 bool
1556
1557 config SYS_HAS_CPU_LOONGSON2F
1558 bool
1559 select CPU_SUPPORTS_CPUFREQ
1560 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1561 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1562
1563 config SYS_HAS_CPU_MIPS32_R1
1564 bool
1565
1566 config SYS_HAS_CPU_MIPS32_R2
1567 bool
1568
1569 config SYS_HAS_CPU_MIPS64_R1
1570 bool
1571
1572 config SYS_HAS_CPU_MIPS64_R2
1573 bool
1574
1575 config SYS_HAS_CPU_R3000
1576 bool
1577
1578 config SYS_HAS_CPU_TX39XX
1579 bool
1580
1581 config SYS_HAS_CPU_VR41XX
1582 bool
1583
1584 config SYS_HAS_CPU_R4300
1585 bool
1586
1587 config SYS_HAS_CPU_R4X00
1588 bool
1589
1590 config SYS_HAS_CPU_TX49XX
1591 bool
1592
1593 config SYS_HAS_CPU_R5000
1594 bool
1595
1596 config SYS_HAS_CPU_R5432
1597 bool
1598
1599 config SYS_HAS_CPU_R5500
1600 bool
1601
1602 config SYS_HAS_CPU_R6000
1603 bool
1604
1605 config SYS_HAS_CPU_NEVADA
1606 bool
1607
1608 config SYS_HAS_CPU_R8000
1609 bool
1610
1611 config SYS_HAS_CPU_R10000
1612 bool
1613
1614 config SYS_HAS_CPU_RM7000
1615 bool
1616
1617 config SYS_HAS_CPU_RM9000
1618 bool
1619
1620 config SYS_HAS_CPU_SB1
1621 bool
1622
1623 config SYS_HAS_CPU_CAVIUM_OCTEON
1624 bool
1625
1626 config SYS_HAS_CPU_BMIPS3300
1627 bool
1628
1629 config SYS_HAS_CPU_BMIPS4350
1630 bool
1631
1632 config SYS_HAS_CPU_BMIPS4380
1633 bool
1634
1635 config SYS_HAS_CPU_BMIPS5000
1636 bool
1637
1638 config SYS_HAS_CPU_XLR
1639 bool
1640
1641 config SYS_HAS_CPU_XLP
1642 bool
1643
1644 #
1645 # CPU may reorder R->R, R->W, W->R, W->W
1646 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1647 #
1648 config WEAK_ORDERING
1649 bool
1650
1651 #
1652 # CPU may reorder reads and writes beyond LL/SC
1653 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1654 #
1655 config WEAK_REORDERING_BEYOND_LLSC
1656 bool
1657 endmenu
1658
1659 #
1660 # These two indicate any level of the MIPS32 and MIPS64 architecture
1661 #
1662 config CPU_MIPS32
1663 bool
1664 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1665
1666 config CPU_MIPS64
1667 bool
1668 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1669
1670 #
1671 # These two indicate the revision of the architecture, either Release 1 or Release 2
1672 #
1673 config CPU_MIPSR1
1674 bool
1675 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1676
1677 config CPU_MIPSR2
1678 bool
1679 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1680
1681 config SYS_SUPPORTS_32BIT_KERNEL
1682 bool
1683 config SYS_SUPPORTS_64BIT_KERNEL
1684 bool
1685 config CPU_SUPPORTS_32BIT_KERNEL
1686 bool
1687 config CPU_SUPPORTS_64BIT_KERNEL
1688 bool
1689 config CPU_SUPPORTS_CPUFREQ
1690 bool
1691 config CPU_SUPPORTS_ADDRWINCFG
1692 bool
1693 config CPU_SUPPORTS_HUGEPAGES
1694 bool
1695 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1696 bool
1697 config MIPS_PGD_C0_CONTEXT
1698 bool
1699 default y if 64BIT && CPU_MIPSR2
1700
1701 #
1702 # Set to y for ptrace access to watch registers.
1703 #
1704 config HARDWARE_WATCHPOINTS
1705 bool
1706 default y if CPU_MIPSR1 || CPU_MIPSR2
1707
1708 menu "Kernel type"
1709
1710 choice
1711
1712 prompt "Kernel code model"
1713 help
1714 You should only select this option if you have a workload that
1715 actually benefits from 64-bit processing or if your machine has
1716 large memory. You will only be presented a single option in this
1717 menu if your system does not support both 32-bit and 64-bit kernels.
1718
1719 config 32BIT
1720 bool "32-bit kernel"
1721 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1722 select TRAD_SIGNALS
1723 help
1724 Select this option if you want to build a 32-bit kernel.
1725 config 64BIT
1726 bool "64-bit kernel"
1727 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1728 select HAVE_SYSCALL_WRAPPERS
1729 help
1730 Select this option if you want to build a 64-bit kernel.
1731
1732 endchoice
1733
1734 choice
1735 prompt "Kernel page size"
1736 default PAGE_SIZE_4KB
1737
1738 config PAGE_SIZE_4KB
1739 bool "4kB"
1740 depends on !CPU_LOONGSON2
1741 help
1742 This option select the standard 4kB Linux page size. On some
1743 R3000-family processors this is the only available page size. Using
1744 4kB page size will minimize memory consumption and is therefore
1745 recommended for low memory systems.
1746
1747 config PAGE_SIZE_8KB
1748 bool "8kB"
1749 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1750 help
1751 Using 8kB page size will result in higher performance kernel at
1752 the price of higher memory consumption. This option is available
1753 only on R8000 and cnMIPS processors. Note that you will need a
1754 suitable Linux distribution to support this.
1755
1756 config PAGE_SIZE_16KB
1757 bool "16kB"
1758 depends on !CPU_R3000 && !CPU_TX39XX
1759 help
1760 Using 16kB page size will result in higher performance kernel at
1761 the price of higher memory consumption. This option is available on
1762 all non-R3000 family processors. Note that you will need a suitable
1763 Linux distribution to support this.
1764
1765 config PAGE_SIZE_32KB
1766 bool "32kB"
1767 depends on CPU_CAVIUM_OCTEON
1768 help
1769 Using 32kB page size will result in higher performance kernel at
1770 the price of higher memory consumption. This option is available
1771 only on cnMIPS cores. Note that you will need a suitable Linux
1772 distribution to support this.
1773
1774 config PAGE_SIZE_64KB
1775 bool "64kB"
1776 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1777 help
1778 Using 64kB page size will result in higher performance kernel at
1779 the price of higher memory consumption. This option is available on
1780 all non-R3000 family processor. Not that at the time of this
1781 writing this option is still high experimental.
1782
1783 endchoice
1784
1785 config FORCE_MAX_ZONEORDER
1786 int "Maximum zone order"
1787 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1788 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1789 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1790 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1791 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1792 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1793 range 11 64
1794 default "11"
1795 help
1796 The kernel memory allocator divides physically contiguous memory
1797 blocks into "zones", where each zone is a power of two number of
1798 pages. This option selects the largest power of two that the kernel
1799 keeps in the memory allocator. If you need to allocate very large
1800 blocks of physically contiguous memory, then you may need to
1801 increase this value.
1802
1803 This config option is actually maximum order plus one. For example,
1804 a value of 11 means that the largest free memory block is 2^10 pages.
1805
1806 The page size is not necessarily 4KB. Keep this in mind
1807 when choosing a value for this option.
1808
1809 config BOARD_SCACHE
1810 bool
1811
1812 config IP22_CPU_SCACHE
1813 bool
1814 select BOARD_SCACHE
1815
1816 #
1817 # Support for a MIPS32 / MIPS64 style S-caches
1818 #
1819 config MIPS_CPU_SCACHE
1820 bool
1821 select BOARD_SCACHE
1822
1823 config R5000_CPU_SCACHE
1824 bool
1825 select BOARD_SCACHE
1826
1827 config RM7000_CPU_SCACHE
1828 bool
1829 select BOARD_SCACHE
1830
1831 config SIBYTE_DMA_PAGEOPS
1832 bool "Use DMA to clear/copy pages"
1833 depends on CPU_SB1
1834 help
1835 Instead of using the CPU to zero and copy pages, use a Data Mover
1836 channel. These DMA channels are otherwise unused by the standard
1837 SiByte Linux port. Seems to give a small performance benefit.
1838
1839 config CPU_HAS_PREFETCH
1840 bool
1841
1842 choice
1843 prompt "MIPS MT options"
1844
1845 config MIPS_MT_DISABLED
1846 bool "Disable multithreading support."
1847 help
1848 Use this option if your workload can't take advantage of
1849 MIPS hardware multithreading support. On systems that don't have
1850 the option of an MT-enabled processor this option will be the only
1851 option in this menu.
1852
1853 config MIPS_MT_SMP
1854 bool "Use 1 TC on each available VPE for SMP"
1855 depends on SYS_SUPPORTS_MULTITHREADING
1856 select CPU_MIPSR2_IRQ_VI
1857 select CPU_MIPSR2_IRQ_EI
1858 select MIPS_MT
1859 select NR_CPUS_DEFAULT_2
1860 select SMP
1861 select SYS_SUPPORTS_SCHED_SMT if SMP
1862 select SYS_SUPPORTS_SMP
1863 select SMP_UP
1864 help
1865 This is a kernel model which is known a VSMP but lately has been
1866 marketesed into SMVP.
1867 Virtual SMP uses the processor's VPEs to implement virtual
1868 processors. In currently available configuration of the 34K processor
1869 this allows for a dual processor. Both processors will share the same
1870 primary caches; each will obtain the half of the TLB for it's own
1871 exclusive use. For a layman this model can be described as similar to
1872 what Intel calls Hyperthreading.
1873
1874 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1875
1876 config MIPS_MT_SMTC
1877 bool "SMTC: Use all TCs on all VPEs for SMP"
1878 depends on CPU_MIPS32_R2
1879 #depends on CPU_MIPS64_R2 # once there is hardware ...
1880 depends on SYS_SUPPORTS_MULTITHREADING
1881 select CPU_MIPSR2_IRQ_VI
1882 select CPU_MIPSR2_IRQ_EI
1883 select MIPS_MT
1884 select NR_CPUS_DEFAULT_8
1885 select SMP
1886 select SYS_SUPPORTS_SMP
1887 select SMP_UP
1888 help
1889 This is a kernel model which is known a SMTC or lately has been
1890 marketesed into SMVP.
1891 is presenting the available TC's of the core as processors to Linux.
1892 On currently available 34K processors this means a Linux system will
1893 see up to 5 processors. The implementation of the SMTC kernel differs
1894 significantly from VSMP and cannot efficiently coexist in the same
1895 kernel binary so the choice between VSMP and SMTC is a compile time
1896 decision.
1897
1898 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1899
1900 endchoice
1901
1902 config MIPS_MT
1903 bool
1904
1905 config SCHED_SMT
1906 bool "SMT (multithreading) scheduler support"
1907 depends on SYS_SUPPORTS_SCHED_SMT
1908 default n
1909 help
1910 SMT scheduler support improves the CPU scheduler's decision making
1911 when dealing with MIPS MT enabled cores at a cost of slightly
1912 increased overhead in some places. If unsure say N here.
1913
1914 config SYS_SUPPORTS_SCHED_SMT
1915 bool
1916
1917
1918 config SYS_SUPPORTS_MULTITHREADING
1919 bool
1920
1921 config MIPS_MT_FPAFF
1922 bool "Dynamic FPU affinity for FP-intensive threads"
1923 default y
1924 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1925
1926 config MIPS_VPE_LOADER
1927 bool "VPE loader support."
1928 depends on SYS_SUPPORTS_MULTITHREADING
1929 select CPU_MIPSR2_IRQ_VI
1930 select CPU_MIPSR2_IRQ_EI
1931 select MIPS_MT
1932 help
1933 Includes a loader for loading an elf relocatable object
1934 onto another VPE and running it.
1935
1936 config MIPS_MT_SMTC_IM_BACKSTOP
1937 bool "Use per-TC register bits as backstop for inhibited IM bits"
1938 depends on MIPS_MT_SMTC
1939 default n
1940 help
1941 To support multiple TC microthreads acting as "CPUs" within
1942 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1943 during interrupt handling. To support legacy drivers and interrupt
1944 controller management code, SMTC has a "backstop" to track and
1945 if necessary restore the interrupt mask. This has some performance
1946 impact on interrupt service overhead.
1947
1948 config MIPS_MT_SMTC_IRQAFF
1949 bool "Support IRQ affinity API"
1950 depends on MIPS_MT_SMTC
1951 default n
1952 help
1953 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1954 for SMTC Linux kernel. Requires platform support, of which
1955 an example can be found in the MIPS kernel i8259 and Malta
1956 platform code. Adds some overhead to interrupt dispatch, and
1957 should be used only if you know what you are doing.
1958
1959 config MIPS_VPE_LOADER_TOM
1960 bool "Load VPE program into memory hidden from linux"
1961 depends on MIPS_VPE_LOADER
1962 default y
1963 help
1964 The loader can use memory that is present but has been hidden from
1965 Linux using the kernel command line option "mem=xxMB". It's up to
1966 you to ensure the amount you put in the option and the space your
1967 program requires is less or equal to the amount physically present.
1968
1969 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1970 config MIPS_VPE_APSP_API
1971 bool "Enable support for AP/SP API (RTLX)"
1972 depends on MIPS_VPE_LOADER
1973 help
1974
1975 config MIPS_APSP_KSPD
1976 bool "Enable KSPD"
1977 depends on MIPS_VPE_APSP_API
1978 default y
1979 help
1980 KSPD is a kernel daemon that accepts syscall requests from the SP
1981 side, actions them and returns the results. It also handles the
1982 "exit" syscall notifying other kernel modules the SP program is
1983 exiting. You probably want to say yes here.
1984
1985 config MIPS_CMP
1986 bool "MIPS CMP framework support"
1987 depends on SYS_SUPPORTS_MIPS_CMP
1988 select SYNC_R4K
1989 select SYS_SUPPORTS_SMP
1990 select SYS_SUPPORTS_SCHED_SMT if SMP
1991 select WEAK_ORDERING
1992 default n
1993 help
1994 This is a placeholder option for the GCMP work. It will need to
1995 be handled differently...
1996
1997 config SB1_PASS_1_WORKAROUNDS
1998 bool
1999 depends on CPU_SB1_PASS_1
2000 default y
2001
2002 config SB1_PASS_2_WORKAROUNDS
2003 bool
2004 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2005 default y
2006
2007 config SB1_PASS_2_1_WORKAROUNDS
2008 bool
2009 depends on CPU_SB1 && CPU_SB1_PASS_2
2010 default y
2011
2012 config 64BIT_PHYS_ADDR
2013 bool
2014
2015 config ARCH_PHYS_ADDR_T_64BIT
2016 def_bool 64BIT_PHYS_ADDR
2017
2018 config CPU_HAS_SMARTMIPS
2019 depends on SYS_SUPPORTS_SMARTMIPS
2020 bool "Support for the SmartMIPS ASE"
2021 help
2022 SmartMIPS is a extension of the MIPS32 architecture aimed at
2023 increased security at both hardware and software level for
2024 smartcards. Enabling this option will allow proper use of the
2025 SmartMIPS instructions by Linux applications. However a kernel with
2026 this option will not work on a MIPS core without SmartMIPS core. If
2027 you don't know you probably don't have SmartMIPS and should say N
2028 here.
2029
2030 config CPU_HAS_WB
2031 bool
2032
2033 config XKS01
2034 bool
2035
2036 #
2037 # Vectored interrupt mode is an R2 feature
2038 #
2039 config CPU_MIPSR2_IRQ_VI
2040 bool
2041
2042 #
2043 # Extended interrupt mode is an R2 feature
2044 #
2045 config CPU_MIPSR2_IRQ_EI
2046 bool
2047
2048 config CPU_HAS_SYNC
2049 bool
2050 depends on !CPU_R3000
2051 default y
2052
2053 #
2054 # CPU non-features
2055 #
2056 config CPU_DADDI_WORKAROUNDS
2057 bool
2058
2059 config CPU_R4000_WORKAROUNDS
2060 bool
2061 select CPU_R4400_WORKAROUNDS
2062
2063 config CPU_R4400_WORKAROUNDS
2064 bool
2065
2066 #
2067 # - Highmem only makes sense for the 32-bit kernel.
2068 # - The current highmem code will only work properly on physically indexed
2069 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2070 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2071 # moment we protect the user and offer the highmem option only on machines
2072 # where it's known to be safe. This will not offer highmem on a few systems
2073 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2074 # indexed CPUs but we're playing safe.
2075 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2076 # know they might have memory configurations that could make use of highmem
2077 # support.
2078 #
2079 config HIGHMEM
2080 bool "High Memory Support"
2081 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2082
2083 config CPU_SUPPORTS_HIGHMEM
2084 bool
2085
2086 config SYS_SUPPORTS_HIGHMEM
2087 bool
2088
2089 config SYS_SUPPORTS_SMARTMIPS
2090 bool
2091
2092 config ARCH_FLATMEM_ENABLE
2093 def_bool y
2094 depends on !NUMA && !CPU_LOONGSON2
2095
2096 config ARCH_DISCONTIGMEM_ENABLE
2097 bool
2098 default y if SGI_IP27
2099 help
2100 Say Y to support efficient handling of discontiguous physical memory,
2101 for architectures which are either NUMA (Non-Uniform Memory Access)
2102 or have huge holes in the physical address space for other reasons.
2103 See <file:Documentation/vm/numa> for more.
2104
2105 config ARCH_SPARSEMEM_ENABLE
2106 bool
2107 select SPARSEMEM_STATIC
2108
2109 config NUMA
2110 bool "NUMA Support"
2111 depends on SYS_SUPPORTS_NUMA
2112 help
2113 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2114 Access). This option improves performance on systems with more
2115 than two nodes; on two node systems it is generally better to
2116 leave it disabled; on single node systems disable this option
2117 disabled.
2118
2119 config SYS_SUPPORTS_NUMA
2120 bool
2121
2122 config NODES_SHIFT
2123 int
2124 default "6"
2125 depends on NEED_MULTIPLE_NODES
2126
2127 config HW_PERF_EVENTS
2128 bool "Enable hardware performance counter support for perf events"
2129 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2130 default y
2131 help
2132 Enable hardware performance counter support for perf events. If
2133 disabled, perf events will use software events only.
2134
2135 source "mm/Kconfig"
2136
2137 config SMP
2138 bool "Multi-Processing support"
2139 depends on SYS_SUPPORTS_SMP
2140 select IRQ_PER_CPU
2141 select USE_GENERIC_SMP_HELPERS
2142 help
2143 This enables support for systems with more than one CPU. If you have
2144 a system with only one CPU, like most personal computers, say N. If
2145 you have a system with more than one CPU, say Y.
2146
2147 If you say N here, the kernel will run on single and multiprocessor
2148 machines, but will use only one CPU of a multiprocessor machine. If
2149 you say Y here, the kernel will run on many, but not all,
2150 singleprocessor machines. On a singleprocessor machine, the kernel
2151 will run faster if you say N here.
2152
2153 People using multiprocessor machines who say Y here should also say
2154 Y to "Enhanced Real Time Clock Support", below.
2155
2156 See also the SMP-HOWTO available at
2157 <http://www.tldp.org/docs.html#howto>.
2158
2159 If you don't know what to do here, say N.
2160
2161 config SMP_UP
2162 bool
2163
2164 config SYS_SUPPORTS_MIPS_CMP
2165 bool
2166
2167 config SYS_SUPPORTS_SMP
2168 bool
2169
2170 config NR_CPUS_DEFAULT_1
2171 bool
2172
2173 config NR_CPUS_DEFAULT_2
2174 bool
2175
2176 config NR_CPUS_DEFAULT_4
2177 bool
2178
2179 config NR_CPUS_DEFAULT_8
2180 bool
2181
2182 config NR_CPUS_DEFAULT_16
2183 bool
2184
2185 config NR_CPUS_DEFAULT_32
2186 bool
2187
2188 config NR_CPUS_DEFAULT_64
2189 bool
2190
2191 config NR_CPUS
2192 int "Maximum number of CPUs (2-64)"
2193 range 1 64 if NR_CPUS_DEFAULT_1
2194 depends on SMP
2195 default "1" if NR_CPUS_DEFAULT_1
2196 default "2" if NR_CPUS_DEFAULT_2
2197 default "4" if NR_CPUS_DEFAULT_4
2198 default "8" if NR_CPUS_DEFAULT_8
2199 default "16" if NR_CPUS_DEFAULT_16
2200 default "32" if NR_CPUS_DEFAULT_32
2201 default "64" if NR_CPUS_DEFAULT_64
2202 help
2203 This allows you to specify the maximum number of CPUs which this
2204 kernel will support. The maximum supported value is 32 for 32-bit
2205 kernel and 64 for 64-bit kernels; the minimum value which makes
2206 sense is 1 for Qemu (useful only for kernel debugging purposes)
2207 and 2 for all others.
2208
2209 This is purely to save memory - each supported CPU adds
2210 approximately eight kilobytes to the kernel image. For best
2211 performance should round up your number of processors to the next
2212 power of two.
2213
2214 #
2215 # Timer Interrupt Frequency Configuration
2216 #
2217
2218 choice
2219 prompt "Timer frequency"
2220 default HZ_250
2221 help
2222 Allows the configuration of the timer frequency.
2223
2224 config HZ_48
2225 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2226
2227 config HZ_100
2228 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2229
2230 config HZ_128
2231 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2232
2233 config HZ_250
2234 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2235
2236 config HZ_256
2237 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2238
2239 config HZ_1000
2240 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2241
2242 config HZ_1024
2243 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2244
2245 endchoice
2246
2247 config SYS_SUPPORTS_48HZ
2248 bool
2249
2250 config SYS_SUPPORTS_100HZ
2251 bool
2252
2253 config SYS_SUPPORTS_128HZ
2254 bool
2255
2256 config SYS_SUPPORTS_250HZ
2257 bool
2258
2259 config SYS_SUPPORTS_256HZ
2260 bool
2261
2262 config SYS_SUPPORTS_1000HZ
2263 bool
2264
2265 config SYS_SUPPORTS_1024HZ
2266 bool
2267
2268 config SYS_SUPPORTS_ARBIT_HZ
2269 bool
2270 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2271 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2272 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2273 !SYS_SUPPORTS_1024HZ
2274
2275 config HZ
2276 int
2277 default 48 if HZ_48
2278 default 100 if HZ_100
2279 default 128 if HZ_128
2280 default 250 if HZ_250
2281 default 256 if HZ_256
2282 default 1000 if HZ_1000
2283 default 1024 if HZ_1024
2284
2285 source "kernel/Kconfig.preempt"
2286
2287 config KEXEC
2288 bool "Kexec system call (EXPERIMENTAL)"
2289 depends on EXPERIMENTAL
2290 help
2291 kexec is a system call that implements the ability to shutdown your
2292 current kernel, and to start another kernel. It is like a reboot
2293 but it is independent of the system firmware. And like a reboot
2294 you can start any kernel with it, not just Linux.
2295
2296 The name comes from the similarity to the exec system call.
2297
2298 It is an ongoing process to be certain the hardware in a machine
2299 is properly shutdown, so do not be surprised if this code does not
2300 initially work for you. It may help to enable device hotplugging
2301 support. As of this writing the exact hardware interface is
2302 strongly in flux, so no good recommendation can be made.
2303
2304 config SECCOMP
2305 bool "Enable seccomp to safely compute untrusted bytecode"
2306 depends on PROC_FS
2307 default y
2308 help
2309 This kernel feature is useful for number crunching applications
2310 that may need to compute untrusted bytecode during their
2311 execution. By using pipes or other transports made available to
2312 the process as file descriptors supporting the read/write
2313 syscalls, it's possible to isolate those applications in
2314 their own address space using seccomp. Once seccomp is
2315 enabled via /proc/<pid>/seccomp, it cannot be disabled
2316 and the task is only allowed to execute a few safe syscalls
2317 defined by each seccomp mode.
2318
2319 If unsure, say Y. Only embedded should say N here.
2320
2321 config USE_OF
2322 bool "Flattened Device Tree support"
2323 select OF
2324 select OF_EARLY_FLATTREE
2325 select IRQ_DOMAIN
2326 help
2327 Include support for flattened device tree machine descriptions.
2328
2329 endmenu
2330
2331 config LOCKDEP_SUPPORT
2332 bool
2333 default y
2334
2335 config STACKTRACE_SUPPORT
2336 bool
2337 default y
2338
2339 source "init/Kconfig"
2340
2341 source "kernel/Kconfig.freezer"
2342
2343 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2344
2345 config HW_HAS_EISA
2346 bool
2347 config HW_HAS_PCI
2348 bool
2349
2350 config PCI
2351 bool "Support for PCI controller"
2352 depends on HW_HAS_PCI
2353 select PCI_DOMAINS
2354 select GENERIC_PCI_IOMAP
2355 select NO_GENERIC_PCI_IOPORT_MAP
2356 help
2357 Find out whether you have a PCI motherboard. PCI is the name of a
2358 bus system, i.e. the way the CPU talks to the other stuff inside
2359 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2360 say Y, otherwise N.
2361
2362 config PCI_DOMAINS
2363 bool
2364
2365 source "drivers/pci/Kconfig"
2366
2367 #
2368 # ISA support is now enabled via select. Too many systems still have the one
2369 # or other ISA chip on the board that users don't know about so don't expect
2370 # users to choose the right thing ...
2371 #
2372 config ISA
2373 bool
2374
2375 config EISA
2376 bool "EISA support"
2377 depends on HW_HAS_EISA
2378 select ISA
2379 select GENERIC_ISA_DMA
2380 ---help---
2381 The Extended Industry Standard Architecture (EISA) bus was
2382 developed as an open alternative to the IBM MicroChannel bus.
2383
2384 The EISA bus provided some of the features of the IBM MicroChannel
2385 bus while maintaining backward compatibility with cards made for
2386 the older ISA bus. The EISA bus saw limited use between 1988 and
2387 1995 when it was made obsolete by the PCI bus.
2388
2389 Say Y here if you are building a kernel for an EISA-based machine.
2390
2391 Otherwise, say N.
2392
2393 source "drivers/eisa/Kconfig"
2394
2395 config TC
2396 bool "TURBOchannel support"
2397 depends on MACH_DECSTATION
2398 help
2399 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2400 processors. TURBOchannel programming specifications are available
2401 at:
2402 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2403 and:
2404 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2405 Linux driver support status is documented at:
2406 <http://www.linux-mips.org/wiki/DECstation>
2407
2408 config MMU
2409 bool
2410 default y
2411
2412 config I8253
2413 bool
2414 select CLKSRC_I8253
2415 select CLKEVT_I8253
2416 select MIPS_EXTERNAL_TIMER
2417
2418 config ZONE_DMA32
2419 bool
2420
2421 source "drivers/pcmcia/Kconfig"
2422
2423 source "drivers/pci/hotplug/Kconfig"
2424
2425 config RAPIDIO
2426 bool "RapidIO support"
2427 depends on PCI
2428 default n
2429 help
2430 If you say Y here, the kernel will include drivers and
2431 infrastructure code to support RapidIO interconnect devices.
2432
2433 source "drivers/rapidio/Kconfig"
2434
2435 endmenu
2436
2437 menu "Executable file formats"
2438
2439 source "fs/Kconfig.binfmt"
2440
2441 config TRAD_SIGNALS
2442 bool
2443
2444 config MIPS32_COMPAT
2445 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2446 depends on 64BIT
2447 help
2448 Select this option if you want Linux/MIPS 32-bit binary
2449 compatibility. Since all software available for Linux/MIPS is
2450 currently 32-bit you should say Y here.
2451
2452 config COMPAT
2453 bool
2454 depends on MIPS32_COMPAT
2455 select ARCH_WANT_OLD_COMPAT_IPC
2456 default y
2457
2458 config SYSVIPC_COMPAT
2459 bool
2460 depends on COMPAT && SYSVIPC
2461 default y
2462
2463 config MIPS32_O32
2464 bool "Kernel support for o32 binaries"
2465 depends on MIPS32_COMPAT
2466 help
2467 Select this option if you want to run o32 binaries. These are pure
2468 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2469 existing binaries are in this format.
2470
2471 If unsure, say Y.
2472
2473 config MIPS32_N32
2474 bool "Kernel support for n32 binaries"
2475 depends on MIPS32_COMPAT
2476 help
2477 Select this option if you want to run n32 binaries. These are
2478 64-bit binaries using 32-bit quantities for addressing and certain
2479 data that would normally be 64-bit. They are used in special
2480 cases.
2481
2482 If unsure, say N.
2483
2484 config BINFMT_ELF32
2485 bool
2486 default y if MIPS32_O32 || MIPS32_N32
2487
2488 endmenu
2489
2490 menu "Power management options"
2491
2492 config ARCH_HIBERNATION_POSSIBLE
2493 def_bool y
2494 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2495
2496 config ARCH_SUSPEND_POSSIBLE
2497 def_bool y
2498 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2499
2500 source "kernel/power/Kconfig"
2501
2502 endmenu
2503
2504 source "arch/mips/kernel/cpufreq/Kconfig"
2505
2506 source "net/Kconfig"
2507
2508 source "drivers/Kconfig"
2509
2510 source "fs/Kconfig"
2511
2512 source "arch/mips/Kconfig.debug"
2513
2514 source "security/Kconfig"
2515
2516 source "crypto/Kconfig"
2517
2518 source "lib/Kconfig"
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