Kconfig: clean up the long arch list for the DEBUG_KMEMLEAK config option
[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 HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_ATTRS
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40
41 menu "Machine selection"
42
43 config ZONE_DMA
44 bool
45
46 choice
47 prompt "System type"
48 default SGI_IP22
49
50 config MIPS_ALCHEMY
51 bool "Alchemy processor based machines"
52 select 64BIT_PHYS_ADDR
53 select CEVT_R4K_LIB
54 select CSRC_R4K_LIB
55 select IRQ_CPU
56 select SYS_HAS_CPU_MIPS32_R1
57 select SYS_SUPPORTS_32BIT_KERNEL
58 select SYS_SUPPORTS_APM_EMULATION
59 select GENERIC_GPIO
60 select ARCH_WANT_OPTIONAL_GPIOLIB
61 select SYS_SUPPORTS_ZBOOT
62 select USB_ARCH_HAS_OHCI
63 select USB_ARCH_HAS_EHCI
64
65 config AR7
66 bool "Texas Instruments AR7"
67 select BOOT_ELF32
68 select DMA_NONCOHERENT
69 select CEVT_R4K
70 select CSRC_R4K
71 select IRQ_CPU
72 select NO_EXCEPT_FILL
73 select SWAP_IO_SPACE
74 select SYS_HAS_CPU_MIPS32_R1
75 select SYS_HAS_EARLY_PRINTK
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_LITTLE_ENDIAN
78 select SYS_SUPPORTS_ZBOOT_UART16550
79 select ARCH_REQUIRE_GPIOLIB
80 select VLYNQ
81 select HAVE_CLK
82 help
83 Support for the Texas Instruments AR7 System-on-a-Chip
84 family: TNETD7100, 7200 and 7300.
85
86 config ATH79
87 bool "Atheros AR71XX/AR724X/AR913X based boards"
88 select ARCH_REQUIRE_GPIOLIB
89 select BOOT_RAW
90 select CEVT_R4K
91 select CSRC_R4K
92 select DMA_NONCOHERENT
93 select HAVE_CLK
94 select IRQ_CPU
95 select MIPS_MACHINE
96 select SYS_HAS_CPU_MIPS32_R2
97 select SYS_HAS_EARLY_PRINTK
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_BIG_ENDIAN
100 help
101 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
102
103 config BCM47XX
104 bool "Broadcom BCM47XX based boards"
105 select CEVT_R4K
106 select CSRC_R4K
107 select DMA_NONCOHERENT
108 select HW_HAS_PCI
109 select IRQ_CPU
110 select SYS_SUPPORTS_32BIT_KERNEL
111 select SYS_SUPPORTS_LITTLE_ENDIAN
112 select GENERIC_GPIO
113 select SYS_HAS_EARLY_PRINTK
114 select CFE
115 help
116 Support for BCM47XX based boards
117
118 config BCM63XX
119 bool "Broadcom BCM63XX based boards"
120 select CEVT_R4K
121 select CSRC_R4K
122 select DMA_NONCOHERENT
123 select IRQ_CPU
124 select SYS_HAS_CPU_MIPS32_R1
125 select SYS_SUPPORTS_32BIT_KERNEL
126 select SYS_SUPPORTS_BIG_ENDIAN
127 select SYS_HAS_EARLY_PRINTK
128 select SWAP_IO_SPACE
129 select ARCH_REQUIRE_GPIOLIB
130 select HAVE_CLK
131 help
132 Support for BCM63XX based boards
133
134 config MIPS_COBALT
135 bool "Cobalt Server"
136 select CEVT_R4K
137 select CSRC_R4K
138 select CEVT_GT641XX
139 select DMA_NONCOHERENT
140 select HW_HAS_PCI
141 select I8253
142 select I8259
143 select IRQ_CPU
144 select IRQ_GT641XX
145 select PCI_GT64XXX_PCI0
146 select PCI
147 select SYS_HAS_CPU_NEVADA
148 select SYS_HAS_EARLY_PRINTK
149 select SYS_SUPPORTS_32BIT_KERNEL
150 select SYS_SUPPORTS_64BIT_KERNEL
151 select SYS_SUPPORTS_LITTLE_ENDIAN
152
153 config MACH_DECSTATION
154 bool "DECstations"
155 select BOOT_ELF32
156 select CEVT_DS1287
157 select CEVT_R4K
158 select CSRC_IOASIC
159 select CSRC_R4K
160 select CPU_DADDI_WORKAROUNDS if 64BIT
161 select CPU_R4000_WORKAROUNDS if 64BIT
162 select CPU_R4400_WORKAROUNDS if 64BIT
163 select DMA_NONCOHERENT
164 select NO_IOPORT
165 select IRQ_CPU
166 select SYS_HAS_CPU_R3000
167 select SYS_HAS_CPU_R4X00
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
170 select SYS_SUPPORTS_LITTLE_ENDIAN
171 select SYS_SUPPORTS_128HZ
172 select SYS_SUPPORTS_256HZ
173 select SYS_SUPPORTS_1024HZ
174 help
175 This enables support for DEC's MIPS based workstations. For details
176 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
177 DECstation porting pages on <http://decstation.unix-ag.org/>.
178
179 If you have one of the following DECstation Models you definitely
180 want to choose R4xx0 for the CPU Type:
181
182 DECstation 5000/50
183 DECstation 5000/150
184 DECstation 5000/260
185 DECsystem 5900/260
186
187 otherwise choose R3000.
188
189 config MACH_JAZZ
190 bool "Jazz family of machines"
191 select ARC
192 select ARC32
193 select ARCH_MAY_HAVE_PC_FDC
194 select CEVT_R4K
195 select CSRC_R4K
196 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
197 select GENERIC_ISA_DMA
198 select HAVE_PCSPKR_PLATFORM
199 select IRQ_CPU
200 select I8253
201 select I8259
202 select ISA
203 select SYS_HAS_CPU_R4X00
204 select SYS_SUPPORTS_32BIT_KERNEL
205 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
206 select SYS_SUPPORTS_100HZ
207 help
208 This a family of machines based on the MIPS R4030 chipset which was
209 used by several vendors to build RISC/os and Windows NT workstations.
210 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
211 Olivetti M700-10 workstations.
212
213 config MACH_JZ4740
214 bool "Ingenic JZ4740 based machines"
215 select SYS_HAS_CPU_MIPS32_R1
216 select SYS_SUPPORTS_32BIT_KERNEL
217 select SYS_SUPPORTS_LITTLE_ENDIAN
218 select SYS_SUPPORTS_ZBOOT_UART16550
219 select DMA_NONCOHERENT
220 select IRQ_CPU
221 select GENERIC_GPIO
222 select ARCH_REQUIRE_GPIOLIB
223 select SYS_HAS_EARLY_PRINTK
224 select HAVE_PWM
225 select HAVE_CLK
226 select GENERIC_IRQ_CHIP
227
228 config LANTIQ
229 bool "Lantiq based platforms"
230 select DMA_NONCOHERENT
231 select IRQ_CPU
232 select CEVT_R4K
233 select CSRC_R4K
234 select SYS_HAS_CPU_MIPS32_R1
235 select SYS_HAS_CPU_MIPS32_R2
236 select SYS_SUPPORTS_BIG_ENDIAN
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_MULTITHREADING
239 select SYS_HAS_EARLY_PRINTK
240 select ARCH_REQUIRE_GPIOLIB
241 select SWAP_IO_SPACE
242 select BOOT_RAW
243 select HAVE_MACH_CLKDEV
244 select CLKDEV_LOOKUP
245 select USE_OF
246
247 config LASAT
248 bool "LASAT Networks platforms"
249 select CEVT_R4K
250 select CSRC_R4K
251 select DMA_NONCOHERENT
252 select SYS_HAS_EARLY_PRINTK
253 select HW_HAS_PCI
254 select IRQ_CPU
255 select PCI_GT64XXX_PCI0
256 select MIPS_NILE4
257 select R5000_CPU_SCACHE
258 select SYS_HAS_CPU_R5000
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
261 select SYS_SUPPORTS_LITTLE_ENDIAN
262
263 config MACH_LOONGSON
264 bool "Loongson family of machines"
265 select SYS_SUPPORTS_ZBOOT
266 help
267 This enables the support of Loongson family of machines.
268
269 Loongson is a family of general-purpose MIPS-compatible CPUs.
270 developed at Institute of Computing Technology (ICT),
271 Chinese Academy of Sciences (CAS) in the People's Republic
272 of China. The chief architect is Professor Weiwu Hu.
273
274 config MACH_LOONGSON1
275 bool "Loongson 1 family of machines"
276 select SYS_SUPPORTS_ZBOOT
277 help
278 This enables support for the Loongson 1 based machines.
279
280 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
281 the ICT (Institute of Computing Technology) and the Chinese Academy
282 of Sciences.
283
284 config MIPS_MALTA
285 bool "MIPS Malta board"
286 select ARCH_MAY_HAVE_PC_FDC
287 select BOOT_ELF32
288 select BOOT_RAW
289 select CEVT_R4K
290 select CSRC_R4K
291 select DMA_NONCOHERENT
292 select GENERIC_ISA_DMA
293 select HAVE_PCSPKR_PLATFORM
294 select IRQ_CPU
295 select IRQ_GIC
296 select HW_HAS_PCI
297 select I8253
298 select I8259
299 select MIPS_BOARDS_GEN
300 select MIPS_BONITO64
301 select MIPS_CPU_SCACHE
302 select PCI_GT64XXX_PCI0
303 select MIPS_MSC
304 select SWAP_IO_SPACE
305 select SYS_HAS_CPU_MIPS32_R1
306 select SYS_HAS_CPU_MIPS32_R2
307 select SYS_HAS_CPU_MIPS64_R1
308 select SYS_HAS_CPU_MIPS64_R2
309 select SYS_HAS_CPU_NEVADA
310 select SYS_HAS_CPU_RM7000
311 select SYS_HAS_EARLY_PRINTK
312 select SYS_SUPPORTS_32BIT_KERNEL
313 select SYS_SUPPORTS_64BIT_KERNEL
314 select SYS_SUPPORTS_BIG_ENDIAN
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316 select SYS_SUPPORTS_MIPS_CMP
317 select SYS_SUPPORTS_MULTITHREADING
318 select SYS_SUPPORTS_SMARTMIPS
319 select SYS_SUPPORTS_ZBOOT
320 help
321 This enables support for the MIPS Technologies Malta evaluation
322 board.
323
324 config MIPS_SIM
325 bool 'MIPS simulator (MIPSsim)'
326 select CEVT_R4K
327 select CSRC_R4K
328 select DMA_NONCOHERENT
329 select SYS_HAS_EARLY_PRINTK
330 select IRQ_CPU
331 select BOOT_RAW
332 select SYS_HAS_CPU_MIPS32_R1
333 select SYS_HAS_CPU_MIPS32_R2
334 select SYS_HAS_EARLY_PRINTK
335 select SYS_SUPPORTS_32BIT_KERNEL
336 select SYS_SUPPORTS_BIG_ENDIAN
337 select SYS_SUPPORTS_MULTITHREADING
338 select SYS_SUPPORTS_LITTLE_ENDIAN
339 help
340 This option enables support for MIPS Technologies MIPSsim software
341 emulator.
342
343 config NEC_MARKEINS
344 bool "NEC EMMA2RH Mark-eins board"
345 select SOC_EMMA2RH
346 select HW_HAS_PCI
347 help
348 This enables support for the NEC Electronics Mark-eins boards.
349
350 config MACH_VR41XX
351 bool "NEC VR4100 series based machines"
352 select CEVT_R4K
353 select CSRC_R4K
354 select SYS_HAS_CPU_VR41XX
355 select ARCH_REQUIRE_GPIOLIB
356
357 config NXP_STB220
358 bool "NXP STB220 board"
359 select SOC_PNX833X
360 help
361 Support for NXP Semiconductors STB220 Development Board.
362
363 config NXP_STB225
364 bool "NXP 225 board"
365 select SOC_PNX833X
366 select SOC_PNX8335
367 help
368 Support for NXP Semiconductors STB225 Development Board.
369
370 config PNX8550_JBS
371 bool "NXP PNX8550 based JBS board"
372 select PNX8550
373 select SYS_SUPPORTS_LITTLE_ENDIAN
374
375 config PNX8550_STB810
376 bool "NXP PNX8550 based STB810 board"
377 select PNX8550
378 select SYS_SUPPORTS_LITTLE_ENDIAN
379
380 config PMC_MSP
381 bool "PMC-Sierra MSP chipsets"
382 depends on EXPERIMENTAL
383 select CEVT_R4K
384 select CSRC_R4K
385 select DMA_NONCOHERENT
386 select SWAP_IO_SPACE
387 select NO_EXCEPT_FILL
388 select BOOT_RAW
389 select SYS_HAS_CPU_MIPS32_R1
390 select SYS_HAS_CPU_MIPS32_R2
391 select SYS_SUPPORTS_32BIT_KERNEL
392 select SYS_SUPPORTS_BIG_ENDIAN
393 select IRQ_CPU
394 select SERIAL_8250
395 select SERIAL_8250_CONSOLE
396 help
397 This adds support for the PMC-Sierra family of Multi-Service
398 Processor System-On-A-Chips. These parts include a number
399 of integrated peripherals, interfaces and DSPs in addition to
400 a variety of MIPS cores.
401
402 config PMC_YOSEMITE
403 bool "PMC-Sierra Yosemite eval board"
404 select CEVT_R4K
405 select CSRC_R4K
406 select DMA_COHERENT
407 select HW_HAS_PCI
408 select IRQ_CPU
409 select IRQ_CPU_RM7K
410 select IRQ_CPU_RM9K
411 select SWAP_IO_SPACE
412 select SYS_HAS_CPU_RM9000
413 select SYS_HAS_EARLY_PRINTK
414 select SYS_SUPPORTS_32BIT_KERNEL
415 select SYS_SUPPORTS_64BIT_KERNEL
416 select SYS_SUPPORTS_BIG_ENDIAN
417 select SYS_SUPPORTS_HIGHMEM
418 select SYS_SUPPORTS_SMP
419 help
420 Yosemite is an evaluation board for the RM9000x2 processor
421 manufactured by PMC-Sierra.
422
423 config POWERTV
424 bool "Cisco PowerTV"
425 select BOOT_ELF32
426 select CEVT_R4K
427 select CPU_MIPSR2_IRQ_VI
428 select CPU_MIPSR2_IRQ_EI
429 select CSRC_POWERTV
430 select DMA_NONCOHERENT
431 select HW_HAS_PCI
432 select SYS_HAS_EARLY_PRINTK
433 select SYS_HAS_CPU_MIPS32_R2
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_BIG_ENDIAN
436 select SYS_SUPPORTS_HIGHMEM
437 select USB_OHCI_LITTLE_ENDIAN
438 help
439 This enables support for the Cisco PowerTV Platform.
440
441 config SGI_IP22
442 bool "SGI IP22 (Indy/Indigo2)"
443 select ARC
444 select ARC32
445 select BOOT_ELF32
446 select CEVT_R4K
447 select CSRC_R4K
448 select DEFAULT_SGI_PARTITION
449 select DMA_NONCOHERENT
450 select HW_HAS_EISA
451 select I8253
452 select I8259
453 select IP22_CPU_SCACHE
454 select IRQ_CPU
455 select GENERIC_ISA_DMA_SUPPORT_BROKEN
456 select SGI_HAS_I8042
457 select SGI_HAS_INDYDOG
458 select SGI_HAS_HAL2
459 select SGI_HAS_SEEQ
460 select SGI_HAS_WD93
461 select SGI_HAS_ZILOG
462 select SWAP_IO_SPACE
463 select SYS_HAS_CPU_R4X00
464 select SYS_HAS_CPU_R5000
465 #
466 # Disable EARLY_PRINTK for now since it leads to overwritten prom
467 # memory during early boot on some machines.
468 #
469 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
470 # for a more details discussion
471 #
472 # select SYS_HAS_EARLY_PRINTK
473 select SYS_SUPPORTS_32BIT_KERNEL
474 select SYS_SUPPORTS_64BIT_KERNEL
475 select SYS_SUPPORTS_BIG_ENDIAN
476 help
477 This are the SGI Indy, Challenge S and Indigo2, as well as certain
478 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
479 that runs on these, say Y here.
480
481 config SGI_IP27
482 bool "SGI IP27 (Origin200/2000)"
483 select ARC
484 select ARC64
485 select BOOT_ELF64
486 select DEFAULT_SGI_PARTITION
487 select DMA_COHERENT
488 select SYS_HAS_EARLY_PRINTK
489 select HW_HAS_PCI
490 select NR_CPUS_DEFAULT_64
491 select SYS_HAS_CPU_R10000
492 select SYS_SUPPORTS_64BIT_KERNEL
493 select SYS_SUPPORTS_BIG_ENDIAN
494 select SYS_SUPPORTS_NUMA
495 select SYS_SUPPORTS_SMP
496 help
497 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
498 workstations. To compile a Linux kernel that runs on these, say Y
499 here.
500
501 config SGI_IP28
502 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
503 depends on EXPERIMENTAL
504 select ARC
505 select ARC64
506 select BOOT_ELF64
507 select CEVT_R4K
508 select CSRC_R4K
509 select DEFAULT_SGI_PARTITION
510 select DMA_NONCOHERENT
511 select GENERIC_ISA_DMA_SUPPORT_BROKEN
512 select IRQ_CPU
513 select HW_HAS_EISA
514 select I8253
515 select I8259
516 select SGI_HAS_I8042
517 select SGI_HAS_INDYDOG
518 select SGI_HAS_HAL2
519 select SGI_HAS_SEEQ
520 select SGI_HAS_WD93
521 select SGI_HAS_ZILOG
522 select SWAP_IO_SPACE
523 select SYS_HAS_CPU_R10000
524 #
525 # Disable EARLY_PRINTK for now since it leads to overwritten prom
526 # memory during early boot on some machines.
527 #
528 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
529 # for a more details discussion
530 #
531 # select SYS_HAS_EARLY_PRINTK
532 select SYS_SUPPORTS_64BIT_KERNEL
533 select SYS_SUPPORTS_BIG_ENDIAN
534 help
535 This is the SGI Indigo2 with R10000 processor. To compile a Linux
536 kernel that runs on these, say Y here.
537
538 config SGI_IP32
539 bool "SGI IP32 (O2)"
540 select ARC
541 select ARC32
542 select BOOT_ELF32
543 select CEVT_R4K
544 select CSRC_R4K
545 select DMA_NONCOHERENT
546 select HW_HAS_PCI
547 select IRQ_CPU
548 select R5000_CPU_SCACHE
549 select RM7000_CPU_SCACHE
550 select SYS_HAS_CPU_R5000
551 select SYS_HAS_CPU_R10000 if BROKEN
552 select SYS_HAS_CPU_RM7000
553 select SYS_HAS_CPU_NEVADA
554 select SYS_SUPPORTS_64BIT_KERNEL
555 select SYS_SUPPORTS_BIG_ENDIAN
556 help
557 If you want this kernel to run on SGI O2 workstation, say Y here.
558
559 config SIBYTE_CRHINE
560 bool "Sibyte BCM91120C-CRhine"
561 depends on EXPERIMENTAL
562 select BOOT_ELF32
563 select DMA_COHERENT
564 select SIBYTE_BCM1120
565 select SWAP_IO_SPACE
566 select SYS_HAS_CPU_SB1
567 select SYS_SUPPORTS_BIG_ENDIAN
568 select SYS_SUPPORTS_LITTLE_ENDIAN
569
570 config SIBYTE_CARMEL
571 bool "Sibyte BCM91120x-Carmel"
572 depends on EXPERIMENTAL
573 select BOOT_ELF32
574 select DMA_COHERENT
575 select SIBYTE_BCM1120
576 select SWAP_IO_SPACE
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
580
581 config SIBYTE_CRHONE
582 bool "Sibyte BCM91125C-CRhone"
583 depends on EXPERIMENTAL
584 select BOOT_ELF32
585 select DMA_COHERENT
586 select SIBYTE_BCM1125
587 select SWAP_IO_SPACE
588 select SYS_HAS_CPU_SB1
589 select SYS_SUPPORTS_BIG_ENDIAN
590 select SYS_SUPPORTS_HIGHMEM
591 select SYS_SUPPORTS_LITTLE_ENDIAN
592
593 config SIBYTE_RHONE
594 bool "Sibyte BCM91125E-Rhone"
595 depends on EXPERIMENTAL
596 select BOOT_ELF32
597 select DMA_COHERENT
598 select SIBYTE_BCM1125H
599 select SWAP_IO_SPACE
600 select SYS_HAS_CPU_SB1
601 select SYS_SUPPORTS_BIG_ENDIAN
602 select SYS_SUPPORTS_LITTLE_ENDIAN
603
604 config SIBYTE_SWARM
605 bool "Sibyte BCM91250A-SWARM"
606 select BOOT_ELF32
607 select DMA_COHERENT
608 select HAVE_PATA_PLATFORM
609 select NR_CPUS_DEFAULT_2
610 select SIBYTE_SB1250
611 select SWAP_IO_SPACE
612 select SYS_HAS_CPU_SB1
613 select SYS_SUPPORTS_BIG_ENDIAN
614 select SYS_SUPPORTS_HIGHMEM
615 select SYS_SUPPORTS_LITTLE_ENDIAN
616 select ZONE_DMA32 if 64BIT
617
618 config SIBYTE_LITTLESUR
619 bool "Sibyte BCM91250C2-LittleSur"
620 depends on EXPERIMENTAL
621 select BOOT_ELF32
622 select DMA_COHERENT
623 select HAVE_PATA_PLATFORM
624 select NR_CPUS_DEFAULT_2
625 select SIBYTE_SB1250
626 select SWAP_IO_SPACE
627 select SYS_HAS_CPU_SB1
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select SYS_SUPPORTS_HIGHMEM
630 select SYS_SUPPORTS_LITTLE_ENDIAN
631
632 config SIBYTE_SENTOSA
633 bool "Sibyte BCM91250E-Sentosa"
634 depends on EXPERIMENTAL
635 select BOOT_ELF32
636 select DMA_COHERENT
637 select NR_CPUS_DEFAULT_2
638 select SIBYTE_SB1250
639 select SWAP_IO_SPACE
640 select SYS_HAS_CPU_SB1
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643
644 config SIBYTE_BIGSUR
645 bool "Sibyte BCM91480B-BigSur"
646 select BOOT_ELF32
647 select DMA_COHERENT
648 select NR_CPUS_DEFAULT_4
649 select SIBYTE_BCM1x80
650 select SWAP_IO_SPACE
651 select SYS_HAS_CPU_SB1
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_HIGHMEM
654 select SYS_SUPPORTS_LITTLE_ENDIAN
655 select ZONE_DMA32 if 64BIT
656
657 config SNI_RM
658 bool "SNI RM200/300/400"
659 select ARC if CPU_LITTLE_ENDIAN
660 select ARC32 if CPU_LITTLE_ENDIAN
661 select SNIPROM if CPU_BIG_ENDIAN
662 select ARCH_MAY_HAVE_PC_FDC
663 select BOOT_ELF32
664 select CEVT_R4K
665 select CSRC_R4K
666 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA
669 select HAVE_PCSPKR_PLATFORM
670 select HW_HAS_EISA
671 select HW_HAS_PCI
672 select IRQ_CPU
673 select I8253
674 select I8259
675 select ISA
676 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
677 select SYS_HAS_CPU_R4X00
678 select SYS_HAS_CPU_R5000
679 select SYS_HAS_CPU_R10000
680 select R5000_CPU_SCACHE
681 select SYS_HAS_EARLY_PRINTK
682 select SYS_SUPPORTS_32BIT_KERNEL
683 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
684 select SYS_SUPPORTS_BIG_ENDIAN
685 select SYS_SUPPORTS_HIGHMEM
686 select SYS_SUPPORTS_LITTLE_ENDIAN
687 help
688 The SNI RM200/300/400 are MIPS-based machines manufactured by
689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
690 Technology and now in turn merged with Fujitsu. Say Y here to
691 support this machine type.
692
693 config MACH_TX39XX
694 bool "Toshiba TX39 series based machines"
695
696 config MACH_TX49XX
697 bool "Toshiba TX49 series based machines"
698
699 config MIKROTIK_RB532
700 bool "Mikrotik RB532 boards"
701 select CEVT_R4K
702 select CSRC_R4K
703 select DMA_NONCOHERENT
704 select HW_HAS_PCI
705 select IRQ_CPU
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_SUPPORTS_32BIT_KERNEL
708 select SYS_SUPPORTS_LITTLE_ENDIAN
709 select SWAP_IO_SPACE
710 select BOOT_RAW
711 select ARCH_REQUIRE_GPIOLIB
712 help
713 Support the Mikrotik(tm) RouterBoard 532 series,
714 based on the IDT RC32434 SoC.
715
716 config WR_PPMC
717 bool "Wind River PPMC board"
718 select CEVT_R4K
719 select CSRC_R4K
720 select IRQ_CPU
721 select BOOT_ELF32
722 select DMA_NONCOHERENT
723 select HW_HAS_PCI
724 select PCI_GT64XXX_PCI0
725 select SWAP_IO_SPACE
726 select SYS_HAS_CPU_MIPS32_R1
727 select SYS_HAS_CPU_MIPS32_R2
728 select SYS_HAS_CPU_MIPS64_R1
729 select SYS_HAS_CPU_NEVADA
730 select SYS_HAS_CPU_RM7000
731 select SYS_SUPPORTS_32BIT_KERNEL
732 select SYS_SUPPORTS_64BIT_KERNEL
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
735 help
736 This enables support for the Wind River MIPS32 4KC PPMC evaluation
737 board, which is based on GT64120 bridge chip.
738
739 config CAVIUM_OCTEON_SIMULATOR
740 bool "Cavium Networks Octeon Simulator"
741 select CEVT_R4K
742 select 64BIT_PHYS_ADDR
743 select DMA_COHERENT
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
746 select SYS_SUPPORTS_HOTPLUG_CPU
747 select SYS_HAS_CPU_CAVIUM_OCTEON
748 select HOLES_IN_ZONE
749 help
750 The Octeon simulator is software performance model of the Cavium
751 Octeon Processor. It supports simulating Octeon processors on x86
752 hardware.
753
754 config CAVIUM_OCTEON_REFERENCE_BOARD
755 bool "Cavium Networks Octeon reference board"
756 select CEVT_R4K
757 select 64BIT_PHYS_ADDR
758 select DMA_COHERENT
759 select SYS_SUPPORTS_64BIT_KERNEL
760 select SYS_SUPPORTS_BIG_ENDIAN
761 select SYS_SUPPORTS_HOTPLUG_CPU
762 select SYS_HAS_EARLY_PRINTK
763 select SYS_HAS_CPU_CAVIUM_OCTEON
764 select SWAP_IO_SPACE
765 select HW_HAS_PCI
766 select ARCH_SUPPORTS_MSI
767 select ZONE_DMA32
768 select USB_ARCH_HAS_OHCI
769 select USB_ARCH_HAS_EHCI
770 select HOLES_IN_ZONE
771 help
772 This option supports all of the Octeon reference boards from Cavium
773 Networks. It builds a kernel that dynamically determines the Octeon
774 CPU type and supports all known board reference implementations.
775 Some of the supported boards are:
776 EBT3000
777 EBH3000
778 EBH3100
779 Thunder
780 Kodama
781 Hikari
782 Say Y here for most Octeon reference boards.
783
784 config NLM_XLR_BOARD
785 bool "Netlogic XLR/XLS based systems"
786 depends on EXPERIMENTAL
787 select BOOT_ELF32
788 select NLM_COMMON
789 select SYS_HAS_CPU_XLR
790 select SYS_SUPPORTS_SMP
791 select HW_HAS_PCI
792 select SWAP_IO_SPACE
793 select SYS_SUPPORTS_32BIT_KERNEL
794 select SYS_SUPPORTS_64BIT_KERNEL
795 select 64BIT_PHYS_ADDR
796 select SYS_SUPPORTS_BIG_ENDIAN
797 select SYS_SUPPORTS_HIGHMEM
798 select DMA_COHERENT
799 select NR_CPUS_DEFAULT_32
800 select CEVT_R4K
801 select CSRC_R4K
802 select IRQ_CPU
803 select ARCH_SUPPORTS_MSI
804 select ZONE_DMA if 64BIT
805 select SYNC_R4K
806 select SYS_HAS_EARLY_PRINTK
807 select USB_ARCH_HAS_OHCI if USB_SUPPORT
808 select USB_ARCH_HAS_EHCI if USB_SUPPORT
809 help
810 Support for systems based on Netlogic XLR and XLS processors.
811 Say Y here if you have a XLR or XLS based board.
812
813 config NLM_XLP_BOARD
814 bool "Netlogic XLP based systems"
815 depends on EXPERIMENTAL
816 select BOOT_ELF32
817 select NLM_COMMON
818 select SYS_HAS_CPU_XLP
819 select SYS_SUPPORTS_SMP
820 select HW_HAS_PCI
821 select SYS_SUPPORTS_32BIT_KERNEL
822 select SYS_SUPPORTS_64BIT_KERNEL
823 select 64BIT_PHYS_ADDR
824 select SYS_SUPPORTS_BIG_ENDIAN
825 select SYS_SUPPORTS_LITTLE_ENDIAN
826 select SYS_SUPPORTS_HIGHMEM
827 select DMA_COHERENT
828 select NR_CPUS_DEFAULT_32
829 select CEVT_R4K
830 select CSRC_R4K
831 select IRQ_CPU
832 select ZONE_DMA if 64BIT
833 select SYNC_R4K
834 select SYS_HAS_EARLY_PRINTK
835 help
836 This board is based on Netlogic XLP Processor.
837 Say Y here if you have a XLP based board.
838
839 endchoice
840
841 source "arch/mips/alchemy/Kconfig"
842 source "arch/mips/ath79/Kconfig"
843 source "arch/mips/bcm47xx/Kconfig"
844 source "arch/mips/bcm63xx/Kconfig"
845 source "arch/mips/jazz/Kconfig"
846 source "arch/mips/jz4740/Kconfig"
847 source "arch/mips/lantiq/Kconfig"
848 source "arch/mips/lasat/Kconfig"
849 source "arch/mips/pmc-sierra/Kconfig"
850 source "arch/mips/powertv/Kconfig"
851 source "arch/mips/sgi-ip27/Kconfig"
852 source "arch/mips/sibyte/Kconfig"
853 source "arch/mips/txx9/Kconfig"
854 source "arch/mips/vr41xx/Kconfig"
855 source "arch/mips/cavium-octeon/Kconfig"
856 source "arch/mips/loongson/Kconfig"
857 source "arch/mips/loongson1/Kconfig"
858 source "arch/mips/netlogic/Kconfig"
859
860 endmenu
861
862 config RWSEM_GENERIC_SPINLOCK
863 bool
864 default y
865
866 config RWSEM_XCHGADD_ALGORITHM
867 bool
868
869 config ARCH_HAS_ILOG2_U32
870 bool
871 default n
872
873 config ARCH_HAS_ILOG2_U64
874 bool
875 default n
876
877 config GENERIC_HWEIGHT
878 bool
879 default y
880
881 config GENERIC_CALIBRATE_DELAY
882 bool
883 default y
884
885 config SCHED_OMIT_FRAME_POINTER
886 bool
887 default y
888
889 #
890 # Select some configuration options automatically based on user selections.
891 #
892 config ARC
893 bool
894
895 config ARCH_MAY_HAVE_PC_FDC
896 bool
897
898 config BOOT_RAW
899 bool
900
901 config CEVT_BCM1480
902 bool
903
904 config CEVT_DS1287
905 bool
906
907 config CEVT_GT641XX
908 bool
909
910 config CEVT_R4K_LIB
911 bool
912
913 config CEVT_R4K
914 select CEVT_R4K_LIB
915 bool
916
917 config CEVT_SB1250
918 bool
919
920 config CEVT_TXX9
921 bool
922
923 config CSRC_BCM1480
924 bool
925
926 config CSRC_IOASIC
927 bool
928
929 config CSRC_POWERTV
930 bool
931
932 config CSRC_R4K_LIB
933 bool
934
935 config CSRC_R4K
936 select CSRC_R4K_LIB
937 bool
938
939 config CSRC_SB1250
940 bool
941
942 config GPIO_TXX9
943 select GENERIC_GPIO
944 select ARCH_REQUIRE_GPIOLIB
945 bool
946
947 config CFE
948 bool
949
950 config ARCH_DMA_ADDR_T_64BIT
951 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
952
953 config DMA_COHERENT
954 bool
955
956 config DMA_NONCOHERENT
957 bool
958 select NEED_DMA_MAP_STATE
959
960 config NEED_DMA_MAP_STATE
961 bool
962
963 config SYS_HAS_EARLY_PRINTK
964 bool
965
966 config HOTPLUG_CPU
967 bool "Support for hot-pluggable CPUs"
968 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
969 help
970 Say Y here to allow turning CPUs off and on. CPUs can be
971 controlled through /sys/devices/system/cpu.
972 (Note: power management support will enable this option
973 automatically on SMP systems. )
974 Say N if you want to disable CPU hotplug.
975
976 config SYS_SUPPORTS_HOTPLUG_CPU
977 bool
978
979 config I8259
980 bool
981
982 config MIPS_BONITO64
983 bool
984
985 config MIPS_MSC
986 bool
987
988 config MIPS_NILE4
989 bool
990
991 config MIPS_DISABLE_OBSOLETE_IDE
992 bool
993
994 config SYNC_R4K
995 bool
996
997 config MIPS_MACHINE
998 def_bool n
999
1000 config NO_IOPORT
1001 def_bool n
1002
1003 config GENERIC_ISA_DMA
1004 bool
1005 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1006 select ISA_DMA_API
1007
1008 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1009 bool
1010 select GENERIC_ISA_DMA
1011
1012 config ISA_DMA_API
1013 bool
1014
1015 config GENERIC_GPIO
1016 bool
1017
1018 config HOLES_IN_ZONE
1019 bool
1020
1021 #
1022 # Endianness selection. Sufficiently obscure so many users don't know what to
1023 # answer,so we try hard to limit the available choices. Also the use of a
1024 # choice statement should be more obvious to the user.
1025 #
1026 choice
1027 prompt "Endianness selection"
1028 help
1029 Some MIPS machines can be configured for either little or big endian
1030 byte order. These modes require different kernels and a different
1031 Linux distribution. In general there is one preferred byteorder for a
1032 particular system but some systems are just as commonly used in the
1033 one or the other endianness.
1034
1035 config CPU_BIG_ENDIAN
1036 bool "Big endian"
1037 depends on SYS_SUPPORTS_BIG_ENDIAN
1038
1039 config CPU_LITTLE_ENDIAN
1040 bool "Little endian"
1041 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1042 help
1043
1044 endchoice
1045
1046 config EXPORT_UASM
1047 bool
1048
1049 config SYS_SUPPORTS_APM_EMULATION
1050 bool
1051
1052 config SYS_SUPPORTS_BIG_ENDIAN
1053 bool
1054
1055 config SYS_SUPPORTS_LITTLE_ENDIAN
1056 bool
1057
1058 config SYS_SUPPORTS_HUGETLBFS
1059 bool
1060 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1061 default y
1062
1063 config IRQ_CPU
1064 bool
1065
1066 config IRQ_CPU_RM7K
1067 bool
1068
1069 config IRQ_CPU_RM9K
1070 bool
1071
1072 config IRQ_MSP_SLP
1073 bool
1074
1075 config IRQ_MSP_CIC
1076 bool
1077
1078 config IRQ_TXX9
1079 bool
1080
1081 config IRQ_GT641XX
1082 bool
1083
1084 config IRQ_GIC
1085 bool
1086
1087 config MIPS_BOARDS_GEN
1088 bool
1089
1090 config PCI_GT64XXX_PCI0
1091 bool
1092
1093 config NO_EXCEPT_FILL
1094 bool
1095
1096 config MIPS_RM9122
1097 bool
1098 select SERIAL_RM9000
1099
1100 config SOC_EMMA2RH
1101 bool
1102 select CEVT_R4K
1103 select CSRC_R4K
1104 select DMA_NONCOHERENT
1105 select IRQ_CPU
1106 select SWAP_IO_SPACE
1107 select SYS_HAS_CPU_R5500
1108 select SYS_SUPPORTS_32BIT_KERNEL
1109 select SYS_SUPPORTS_64BIT_KERNEL
1110 select SYS_SUPPORTS_BIG_ENDIAN
1111
1112 config SOC_PNX833X
1113 bool
1114 select CEVT_R4K
1115 select CSRC_R4K
1116 select IRQ_CPU
1117 select DMA_NONCOHERENT
1118 select SYS_HAS_CPU_MIPS32_R2
1119 select SYS_SUPPORTS_32BIT_KERNEL
1120 select SYS_SUPPORTS_LITTLE_ENDIAN
1121 select SYS_SUPPORTS_BIG_ENDIAN
1122 select GENERIC_GPIO
1123 select CPU_MIPSR2_IRQ_VI
1124
1125 config SOC_PNX8335
1126 bool
1127 select SOC_PNX833X
1128
1129 config PNX8550
1130 bool
1131 select SOC_PNX8550
1132
1133 config SOC_PNX8550
1134 bool
1135 select DMA_NONCOHERENT
1136 select HW_HAS_PCI
1137 select SYS_HAS_CPU_MIPS32_R1
1138 select SYS_HAS_EARLY_PRINTK
1139 select SYS_SUPPORTS_32BIT_KERNEL
1140 select GENERIC_GPIO
1141
1142 config SWAP_IO_SPACE
1143 bool
1144
1145 config SERIAL_RM9000
1146 bool
1147
1148 config SGI_HAS_INDYDOG
1149 bool
1150
1151 config SGI_HAS_HAL2
1152 bool
1153
1154 config SGI_HAS_SEEQ
1155 bool
1156
1157 config SGI_HAS_WD93
1158 bool
1159
1160 config SGI_HAS_ZILOG
1161 bool
1162
1163 config SGI_HAS_I8042
1164 bool
1165
1166 config DEFAULT_SGI_PARTITION
1167 bool
1168
1169 config ARC32
1170 bool
1171
1172 config SNIPROM
1173 bool
1174
1175 config BOOT_ELF32
1176 bool
1177
1178 config MIPS_L1_CACHE_SHIFT
1179 int
1180 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1181 default "6" if MIPS_CPU_SCACHE
1182 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1183 default "5"
1184
1185 config HAVE_STD_PC_SERIAL_PORT
1186 bool
1187
1188 config ARC_CONSOLE
1189 bool "ARC console support"
1190 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1191
1192 config ARC_MEMORY
1193 bool
1194 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1195 default y
1196
1197 config ARC_PROMLIB
1198 bool
1199 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1200 default y
1201
1202 config ARC64
1203 bool
1204
1205 config BOOT_ELF64
1206 bool
1207
1208 menu "CPU selection"
1209
1210 choice
1211 prompt "CPU type"
1212 default CPU_R4X00
1213
1214 config CPU_LOONGSON2E
1215 bool "Loongson 2E"
1216 depends on SYS_HAS_CPU_LOONGSON2E
1217 select CPU_LOONGSON2
1218 help
1219 The Loongson 2E processor implements the MIPS III instruction set
1220 with many extensions.
1221
1222 It has an internal FPGA northbridge, which is compatible to
1223 bonito64.
1224
1225 config CPU_LOONGSON2F
1226 bool "Loongson 2F"
1227 depends on SYS_HAS_CPU_LOONGSON2F
1228 select CPU_LOONGSON2
1229 select GENERIC_GPIO
1230 select ARCH_REQUIRE_GPIOLIB
1231 help
1232 The Loongson 2F processor implements the MIPS III instruction set
1233 with many extensions.
1234
1235 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1236 have a similar programming interface with FPGA northbridge used in
1237 Loongson2E.
1238
1239 config CPU_LOONGSON1B
1240 bool "Loongson 1B"
1241 depends on SYS_HAS_CPU_LOONGSON1B
1242 select CPU_LOONGSON1
1243 help
1244 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1245 release 2 instruction set.
1246
1247 config CPU_MIPS32_R1
1248 bool "MIPS32 Release 1"
1249 depends on SYS_HAS_CPU_MIPS32_R1
1250 select CPU_HAS_PREFETCH
1251 select CPU_SUPPORTS_32BIT_KERNEL
1252 select CPU_SUPPORTS_HIGHMEM
1253 help
1254 Choose this option to build a kernel for release 1 or later of the
1255 MIPS32 architecture. Most modern embedded systems with a 32-bit
1256 MIPS processor are based on a MIPS32 processor. If you know the
1257 specific type of processor in your system, choose those that one
1258 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1259 Release 2 of the MIPS32 architecture is available since several
1260 years so chances are you even have a MIPS32 Release 2 processor
1261 in which case you should choose CPU_MIPS32_R2 instead for better
1262 performance.
1263
1264 config CPU_MIPS32_R2
1265 bool "MIPS32 Release 2"
1266 depends on SYS_HAS_CPU_MIPS32_R2
1267 select CPU_HAS_PREFETCH
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_HIGHMEM
1270 help
1271 Choose this option to build a kernel for release 2 or later of the
1272 MIPS32 architecture. Most modern embedded systems with a 32-bit
1273 MIPS processor are based on a MIPS32 processor. If you know the
1274 specific type of processor in your system, choose those that one
1275 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1276
1277 config CPU_MIPS64_R1
1278 bool "MIPS64 Release 1"
1279 depends on SYS_HAS_CPU_MIPS64_R1
1280 select CPU_HAS_PREFETCH
1281 select CPU_SUPPORTS_32BIT_KERNEL
1282 select CPU_SUPPORTS_64BIT_KERNEL
1283 select CPU_SUPPORTS_HIGHMEM
1284 select CPU_SUPPORTS_HUGEPAGES
1285 help
1286 Choose this option to build a kernel for release 1 or later of the
1287 MIPS64 architecture. Many modern embedded systems with a 64-bit
1288 MIPS processor are based on a MIPS64 processor. If you know the
1289 specific type of processor in your system, choose those that one
1290 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1291 Release 2 of the MIPS64 architecture is available since several
1292 years so chances are you even have a MIPS64 Release 2 processor
1293 in which case you should choose CPU_MIPS64_R2 instead for better
1294 performance.
1295
1296 config CPU_MIPS64_R2
1297 bool "MIPS64 Release 2"
1298 depends on SYS_HAS_CPU_MIPS64_R2
1299 select CPU_HAS_PREFETCH
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_64BIT_KERNEL
1302 select CPU_SUPPORTS_HIGHMEM
1303 select CPU_SUPPORTS_HUGEPAGES
1304 help
1305 Choose this option to build a kernel for release 2 or later of the
1306 MIPS64 architecture. Many modern embedded systems with a 64-bit
1307 MIPS processor are based on a MIPS64 processor. If you know the
1308 specific type of processor in your system, choose those that one
1309 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1310
1311 config CPU_R3000
1312 bool "R3000"
1313 depends on SYS_HAS_CPU_R3000
1314 select CPU_HAS_WB
1315 select CPU_SUPPORTS_32BIT_KERNEL
1316 select CPU_SUPPORTS_HIGHMEM
1317 help
1318 Please make sure to pick the right CPU type. Linux/MIPS is not
1319 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1320 *not* work on R4000 machines and vice versa. However, since most
1321 of the supported machines have an R4000 (or similar) CPU, R4x00
1322 might be a safe bet. If the resulting kernel does not work,
1323 try to recompile with R3000.
1324
1325 config CPU_TX39XX
1326 bool "R39XX"
1327 depends on SYS_HAS_CPU_TX39XX
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329
1330 config CPU_VR41XX
1331 bool "R41xx"
1332 depends on SYS_HAS_CPU_VR41XX
1333 select CPU_SUPPORTS_32BIT_KERNEL
1334 select CPU_SUPPORTS_64BIT_KERNEL
1335 help
1336 The options selects support for the NEC VR4100 series of processors.
1337 Only choose this option if you have one of these processors as a
1338 kernel built with this option will not run on any other type of
1339 processor or vice versa.
1340
1341 config CPU_R4300
1342 bool "R4300"
1343 depends on SYS_HAS_CPU_R4300
1344 select CPU_SUPPORTS_32BIT_KERNEL
1345 select CPU_SUPPORTS_64BIT_KERNEL
1346 help
1347 MIPS Technologies R4300-series processors.
1348
1349 config CPU_R4X00
1350 bool "R4x00"
1351 depends on SYS_HAS_CPU_R4X00
1352 select CPU_SUPPORTS_32BIT_KERNEL
1353 select CPU_SUPPORTS_64BIT_KERNEL
1354 help
1355 MIPS Technologies R4000-series processors other than 4300, including
1356 the R4000, R4400, R4600, and 4700.
1357
1358 config CPU_TX49XX
1359 bool "R49XX"
1360 depends on SYS_HAS_CPU_TX49XX
1361 select CPU_HAS_PREFETCH
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364
1365 config CPU_R5000
1366 bool "R5000"
1367 depends on SYS_HAS_CPU_R5000
1368 select CPU_SUPPORTS_32BIT_KERNEL
1369 select CPU_SUPPORTS_64BIT_KERNEL
1370 help
1371 MIPS Technologies R5000-series processors other than the Nevada.
1372
1373 config CPU_R5432
1374 bool "R5432"
1375 depends on SYS_HAS_CPU_R5432
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1378
1379 config CPU_R5500
1380 bool "R5500"
1381 depends on SYS_HAS_CPU_R5500
1382 select CPU_SUPPORTS_32BIT_KERNEL
1383 select CPU_SUPPORTS_64BIT_KERNEL
1384 select CPU_SUPPORTS_HUGEPAGES
1385 help
1386 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1387 instruction set.
1388
1389 config CPU_R6000
1390 bool "R6000"
1391 depends on EXPERIMENTAL
1392 depends on SYS_HAS_CPU_R6000
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 help
1395 MIPS Technologies R6000 and R6000A series processors. Note these
1396 processors are extremely rare and the support for them is incomplete.
1397
1398 config CPU_NEVADA
1399 bool "RM52xx"
1400 depends on SYS_HAS_CPU_NEVADA
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 help
1404 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1405
1406 config CPU_R8000
1407 bool "R8000"
1408 depends on EXPERIMENTAL
1409 depends on SYS_HAS_CPU_R8000
1410 select CPU_HAS_PREFETCH
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 help
1413 MIPS Technologies R8000 processors. Note these processors are
1414 uncommon and the support for them is incomplete.
1415
1416 config CPU_R10000
1417 bool "R10000"
1418 depends on SYS_HAS_CPU_R10000
1419 select CPU_HAS_PREFETCH
1420 select CPU_SUPPORTS_32BIT_KERNEL
1421 select CPU_SUPPORTS_64BIT_KERNEL
1422 select CPU_SUPPORTS_HIGHMEM
1423 help
1424 MIPS Technologies R10000-series processors.
1425
1426 config CPU_RM7000
1427 bool "RM7000"
1428 depends on SYS_HAS_CPU_RM7000
1429 select CPU_HAS_PREFETCH
1430 select CPU_SUPPORTS_32BIT_KERNEL
1431 select CPU_SUPPORTS_64BIT_KERNEL
1432 select CPU_SUPPORTS_HIGHMEM
1433
1434 config CPU_RM9000
1435 bool "RM9000"
1436 depends on SYS_HAS_CPU_RM9000
1437 select CPU_HAS_PREFETCH
1438 select CPU_SUPPORTS_32BIT_KERNEL
1439 select CPU_SUPPORTS_64BIT_KERNEL
1440 select CPU_SUPPORTS_HIGHMEM
1441 select WEAK_ORDERING
1442
1443 config CPU_SB1
1444 bool "SB1"
1445 depends on SYS_HAS_CPU_SB1
1446 select CPU_SUPPORTS_32BIT_KERNEL
1447 select CPU_SUPPORTS_64BIT_KERNEL
1448 select CPU_SUPPORTS_HIGHMEM
1449 select WEAK_ORDERING
1450
1451 config CPU_CAVIUM_OCTEON
1452 bool "Cavium Octeon processor"
1453 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1454 select ARCH_SPARSEMEM_ENABLE
1455 select CPU_HAS_PREFETCH
1456 select CPU_SUPPORTS_64BIT_KERNEL
1457 select SYS_SUPPORTS_SMP
1458 select NR_CPUS_DEFAULT_16
1459 select WEAK_ORDERING
1460 select CPU_SUPPORTS_HIGHMEM
1461 select CPU_SUPPORTS_HUGEPAGES
1462 select LIBFDT
1463 select USE_OF
1464 help
1465 The Cavium Octeon processor is a highly integrated chip containing
1466 many ethernet hardware widgets for networking tasks. The processor
1467 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1468 Full details can be found at http://www.caviumnetworks.com.
1469
1470 config CPU_BMIPS3300
1471 bool "BMIPS3300"
1472 depends on SYS_HAS_CPU_BMIPS3300
1473 select CPU_BMIPS
1474 help
1475 Broadcom BMIPS3300 processors.
1476
1477 config CPU_BMIPS4350
1478 bool "BMIPS4350"
1479 depends on SYS_HAS_CPU_BMIPS4350
1480 select CPU_BMIPS
1481 select SYS_SUPPORTS_SMP
1482 select SYS_SUPPORTS_HOTPLUG_CPU
1483 help
1484 Broadcom BMIPS4350 ("VIPER") processors.
1485
1486 config CPU_BMIPS4380
1487 bool "BMIPS4380"
1488 depends on SYS_HAS_CPU_BMIPS4380
1489 select CPU_BMIPS
1490 select SYS_SUPPORTS_SMP
1491 select SYS_SUPPORTS_HOTPLUG_CPU
1492 help
1493 Broadcom BMIPS4380 processors.
1494
1495 config CPU_BMIPS5000
1496 bool "BMIPS5000"
1497 depends on SYS_HAS_CPU_BMIPS5000
1498 select CPU_BMIPS
1499 select CPU_SUPPORTS_HIGHMEM
1500 select MIPS_CPU_SCACHE
1501 select SYS_SUPPORTS_SMP
1502 select SYS_SUPPORTS_HOTPLUG_CPU
1503 help
1504 Broadcom BMIPS5000 processors.
1505
1506 config CPU_XLR
1507 bool "Netlogic XLR SoC"
1508 depends on SYS_HAS_CPU_XLR
1509 select CPU_SUPPORTS_32BIT_KERNEL
1510 select CPU_SUPPORTS_64BIT_KERNEL
1511 select CPU_SUPPORTS_HIGHMEM
1512 select WEAK_ORDERING
1513 select WEAK_REORDERING_BEYOND_LLSC
1514 select CPU_SUPPORTS_HUGEPAGES
1515 help
1516 Netlogic Microsystems XLR/XLS processors.
1517
1518 config CPU_XLP
1519 bool "Netlogic XLP SoC"
1520 depends on SYS_HAS_CPU_XLP
1521 select CPU_SUPPORTS_32BIT_KERNEL
1522 select CPU_SUPPORTS_64BIT_KERNEL
1523 select CPU_SUPPORTS_HIGHMEM
1524 select CPU_HAS_LLSC
1525 select WEAK_ORDERING
1526 select WEAK_REORDERING_BEYOND_LLSC
1527 select CPU_HAS_PREFETCH
1528 help
1529 Netlogic Microsystems XLP processors.
1530 endchoice
1531
1532 if CPU_LOONGSON2F
1533 config CPU_NOP_WORKAROUNDS
1534 bool
1535
1536 config CPU_JUMP_WORKAROUNDS
1537 bool
1538
1539 config CPU_LOONGSON2F_WORKAROUNDS
1540 bool "Loongson 2F Workarounds"
1541 default y
1542 select CPU_NOP_WORKAROUNDS
1543 select CPU_JUMP_WORKAROUNDS
1544 help
1545 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1546 require workarounds. Without workarounds the system may hang
1547 unexpectedly. For more information please refer to the gas
1548 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1549
1550 Loongson 2F03 and later have fixed these issues and no workarounds
1551 are needed. The workarounds have no significant side effect on them
1552 but may decrease the performance of the system so this option should
1553 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1554 systems.
1555
1556 If unsure, please say Y.
1557 endif # CPU_LOONGSON2F
1558
1559 config SYS_SUPPORTS_ZBOOT
1560 bool
1561 select HAVE_KERNEL_GZIP
1562 select HAVE_KERNEL_BZIP2
1563 select HAVE_KERNEL_LZMA
1564 select HAVE_KERNEL_LZO
1565
1566 config SYS_SUPPORTS_ZBOOT_UART16550
1567 bool
1568 select SYS_SUPPORTS_ZBOOT
1569
1570 config CPU_LOONGSON2
1571 bool
1572 select CPU_SUPPORTS_32BIT_KERNEL
1573 select CPU_SUPPORTS_64BIT_KERNEL
1574 select CPU_SUPPORTS_HIGHMEM
1575
1576 config CPU_LOONGSON1
1577 bool
1578 select CPU_MIPS32
1579 select CPU_MIPSR2
1580 select CPU_HAS_PREFETCH
1581 select CPU_SUPPORTS_32BIT_KERNEL
1582 select CPU_SUPPORTS_HIGHMEM
1583
1584 config CPU_BMIPS
1585 bool
1586 select CPU_MIPS32
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select DMA_NONCOHERENT
1589 select IRQ_CPU
1590 select SWAP_IO_SPACE
1591 select WEAK_ORDERING
1592
1593 config SYS_HAS_CPU_LOONGSON2E
1594 bool
1595
1596 config SYS_HAS_CPU_LOONGSON2F
1597 bool
1598 select CPU_SUPPORTS_CPUFREQ
1599 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1600 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1601
1602 config SYS_HAS_CPU_LOONGSON1B
1603 bool
1604
1605 config SYS_HAS_CPU_MIPS32_R1
1606 bool
1607
1608 config SYS_HAS_CPU_MIPS32_R2
1609 bool
1610
1611 config SYS_HAS_CPU_MIPS64_R1
1612 bool
1613
1614 config SYS_HAS_CPU_MIPS64_R2
1615 bool
1616
1617 config SYS_HAS_CPU_R3000
1618 bool
1619
1620 config SYS_HAS_CPU_TX39XX
1621 bool
1622
1623 config SYS_HAS_CPU_VR41XX
1624 bool
1625
1626 config SYS_HAS_CPU_R4300
1627 bool
1628
1629 config SYS_HAS_CPU_R4X00
1630 bool
1631
1632 config SYS_HAS_CPU_TX49XX
1633 bool
1634
1635 config SYS_HAS_CPU_R5000
1636 bool
1637
1638 config SYS_HAS_CPU_R5432
1639 bool
1640
1641 config SYS_HAS_CPU_R5500
1642 bool
1643
1644 config SYS_HAS_CPU_R6000
1645 bool
1646
1647 config SYS_HAS_CPU_NEVADA
1648 bool
1649
1650 config SYS_HAS_CPU_R8000
1651 bool
1652
1653 config SYS_HAS_CPU_R10000
1654 bool
1655
1656 config SYS_HAS_CPU_RM7000
1657 bool
1658
1659 config SYS_HAS_CPU_RM9000
1660 bool
1661
1662 config SYS_HAS_CPU_SB1
1663 bool
1664
1665 config SYS_HAS_CPU_CAVIUM_OCTEON
1666 bool
1667
1668 config SYS_HAS_CPU_BMIPS3300
1669 bool
1670
1671 config SYS_HAS_CPU_BMIPS4350
1672 bool
1673
1674 config SYS_HAS_CPU_BMIPS4380
1675 bool
1676
1677 config SYS_HAS_CPU_BMIPS5000
1678 bool
1679
1680 config SYS_HAS_CPU_XLR
1681 bool
1682
1683 config SYS_HAS_CPU_XLP
1684 bool
1685
1686 #
1687 # CPU may reorder R->R, R->W, W->R, W->W
1688 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1689 #
1690 config WEAK_ORDERING
1691 bool
1692
1693 #
1694 # CPU may reorder reads and writes beyond LL/SC
1695 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1696 #
1697 config WEAK_REORDERING_BEYOND_LLSC
1698 bool
1699 endmenu
1700
1701 #
1702 # These two indicate any level of the MIPS32 and MIPS64 architecture
1703 #
1704 config CPU_MIPS32
1705 bool
1706 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1707
1708 config CPU_MIPS64
1709 bool
1710 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1711
1712 #
1713 # These two indicate the revision of the architecture, either Release 1 or Release 2
1714 #
1715 config CPU_MIPSR1
1716 bool
1717 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1718
1719 config CPU_MIPSR2
1720 bool
1721 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1722
1723 config SYS_SUPPORTS_32BIT_KERNEL
1724 bool
1725 config SYS_SUPPORTS_64BIT_KERNEL
1726 bool
1727 config CPU_SUPPORTS_32BIT_KERNEL
1728 bool
1729 config CPU_SUPPORTS_64BIT_KERNEL
1730 bool
1731 config CPU_SUPPORTS_CPUFREQ
1732 bool
1733 config CPU_SUPPORTS_ADDRWINCFG
1734 bool
1735 config CPU_SUPPORTS_HUGEPAGES
1736 bool
1737 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1738 bool
1739 config MIPS_PGD_C0_CONTEXT
1740 bool
1741 default y if 64BIT && CPU_MIPSR2
1742
1743 #
1744 # Set to y for ptrace access to watch registers.
1745 #
1746 config HARDWARE_WATCHPOINTS
1747 bool
1748 default y if CPU_MIPSR1 || CPU_MIPSR2
1749
1750 menu "Kernel type"
1751
1752 choice
1753
1754 prompt "Kernel code model"
1755 help
1756 You should only select this option if you have a workload that
1757 actually benefits from 64-bit processing or if your machine has
1758 large memory. You will only be presented a single option in this
1759 menu if your system does not support both 32-bit and 64-bit kernels.
1760
1761 config 32BIT
1762 bool "32-bit kernel"
1763 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1764 select TRAD_SIGNALS
1765 help
1766 Select this option if you want to build a 32-bit kernel.
1767 config 64BIT
1768 bool "64-bit kernel"
1769 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1770 select HAVE_SYSCALL_WRAPPERS
1771 help
1772 Select this option if you want to build a 64-bit kernel.
1773
1774 endchoice
1775
1776 choice
1777 prompt "Kernel page size"
1778 default PAGE_SIZE_4KB
1779
1780 config PAGE_SIZE_4KB
1781 bool "4kB"
1782 depends on !CPU_LOONGSON2
1783 help
1784 This option select the standard 4kB Linux page size. On some
1785 R3000-family processors this is the only available page size. Using
1786 4kB page size will minimize memory consumption and is therefore
1787 recommended for low memory systems.
1788
1789 config PAGE_SIZE_8KB
1790 bool "8kB"
1791 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1792 help
1793 Using 8kB page size will result in higher performance kernel at
1794 the price of higher memory consumption. This option is available
1795 only on R8000 and cnMIPS processors. Note that you will need a
1796 suitable Linux distribution to support this.
1797
1798 config PAGE_SIZE_16KB
1799 bool "16kB"
1800 depends on !CPU_R3000 && !CPU_TX39XX
1801 help
1802 Using 16kB page size will result in higher performance kernel at
1803 the price of higher memory consumption. This option is available on
1804 all non-R3000 family processors. Note that you will need a suitable
1805 Linux distribution to support this.
1806
1807 config PAGE_SIZE_32KB
1808 bool "32kB"
1809 depends on CPU_CAVIUM_OCTEON
1810 help
1811 Using 32kB page size will result in higher performance kernel at
1812 the price of higher memory consumption. This option is available
1813 only on cnMIPS cores. Note that you will need a suitable Linux
1814 distribution to support this.
1815
1816 config PAGE_SIZE_64KB
1817 bool "64kB"
1818 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1819 help
1820 Using 64kB page size will result in higher performance kernel at
1821 the price of higher memory consumption. This option is available on
1822 all non-R3000 family processor. Not that at the time of this
1823 writing this option is still high experimental.
1824
1825 endchoice
1826
1827 config FORCE_MAX_ZONEORDER
1828 int "Maximum zone order"
1829 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1830 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1831 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1832 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1833 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1834 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1835 range 11 64
1836 default "11"
1837 help
1838 The kernel memory allocator divides physically contiguous memory
1839 blocks into "zones", where each zone is a power of two number of
1840 pages. This option selects the largest power of two that the kernel
1841 keeps in the memory allocator. If you need to allocate very large
1842 blocks of physically contiguous memory, then you may need to
1843 increase this value.
1844
1845 This config option is actually maximum order plus one. For example,
1846 a value of 11 means that the largest free memory block is 2^10 pages.
1847
1848 The page size is not necessarily 4KB. Keep this in mind
1849 when choosing a value for this option.
1850
1851 config BOARD_SCACHE
1852 bool
1853
1854 config IP22_CPU_SCACHE
1855 bool
1856 select BOARD_SCACHE
1857
1858 #
1859 # Support for a MIPS32 / MIPS64 style S-caches
1860 #
1861 config MIPS_CPU_SCACHE
1862 bool
1863 select BOARD_SCACHE
1864
1865 config R5000_CPU_SCACHE
1866 bool
1867 select BOARD_SCACHE
1868
1869 config RM7000_CPU_SCACHE
1870 bool
1871 select BOARD_SCACHE
1872
1873 config SIBYTE_DMA_PAGEOPS
1874 bool "Use DMA to clear/copy pages"
1875 depends on CPU_SB1
1876 help
1877 Instead of using the CPU to zero and copy pages, use a Data Mover
1878 channel. These DMA channels are otherwise unused by the standard
1879 SiByte Linux port. Seems to give a small performance benefit.
1880
1881 config CPU_HAS_PREFETCH
1882 bool
1883
1884 choice
1885 prompt "MIPS MT options"
1886
1887 config MIPS_MT_DISABLED
1888 bool "Disable multithreading support."
1889 help
1890 Use this option if your workload can't take advantage of
1891 MIPS hardware multithreading support. On systems that don't have
1892 the option of an MT-enabled processor this option will be the only
1893 option in this menu.
1894
1895 config MIPS_MT_SMP
1896 bool "Use 1 TC on each available VPE for SMP"
1897 depends on SYS_SUPPORTS_MULTITHREADING
1898 select CPU_MIPSR2_IRQ_VI
1899 select CPU_MIPSR2_IRQ_EI
1900 select MIPS_MT
1901 select NR_CPUS_DEFAULT_2
1902 select SMP
1903 select SYS_SUPPORTS_SCHED_SMT if SMP
1904 select SYS_SUPPORTS_SMP
1905 select SMP_UP
1906 help
1907 This is a kernel model which is known a VSMP but lately has been
1908 marketesed into SMVP.
1909 Virtual SMP uses the processor's VPEs to implement virtual
1910 processors. In currently available configuration of the 34K processor
1911 this allows for a dual processor. Both processors will share the same
1912 primary caches; each will obtain the half of the TLB for it's own
1913 exclusive use. For a layman this model can be described as similar to
1914 what Intel calls Hyperthreading.
1915
1916 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1917
1918 config MIPS_MT_SMTC
1919 bool "SMTC: Use all TCs on all VPEs for SMP"
1920 depends on CPU_MIPS32_R2
1921 #depends on CPU_MIPS64_R2 # once there is hardware ...
1922 depends on SYS_SUPPORTS_MULTITHREADING
1923 select CPU_MIPSR2_IRQ_VI
1924 select CPU_MIPSR2_IRQ_EI
1925 select MIPS_MT
1926 select NR_CPUS_DEFAULT_8
1927 select SMP
1928 select SYS_SUPPORTS_SMP
1929 select SMP_UP
1930 help
1931 This is a kernel model which is known a SMTC or lately has been
1932 marketesed into SMVP.
1933 is presenting the available TC's of the core as processors to Linux.
1934 On currently available 34K processors this means a Linux system will
1935 see up to 5 processors. The implementation of the SMTC kernel differs
1936 significantly from VSMP and cannot efficiently coexist in the same
1937 kernel binary so the choice between VSMP and SMTC is a compile time
1938 decision.
1939
1940 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1941
1942 endchoice
1943
1944 config MIPS_MT
1945 bool
1946
1947 config SCHED_SMT
1948 bool "SMT (multithreading) scheduler support"
1949 depends on SYS_SUPPORTS_SCHED_SMT
1950 default n
1951 help
1952 SMT scheduler support improves the CPU scheduler's decision making
1953 when dealing with MIPS MT enabled cores at a cost of slightly
1954 increased overhead in some places. If unsure say N here.
1955
1956 config SYS_SUPPORTS_SCHED_SMT
1957 bool
1958
1959
1960 config SYS_SUPPORTS_MULTITHREADING
1961 bool
1962
1963 config MIPS_MT_FPAFF
1964 bool "Dynamic FPU affinity for FP-intensive threads"
1965 default y
1966 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1967
1968 config MIPS_VPE_LOADER
1969 bool "VPE loader support."
1970 depends on SYS_SUPPORTS_MULTITHREADING
1971 select CPU_MIPSR2_IRQ_VI
1972 select CPU_MIPSR2_IRQ_EI
1973 select MIPS_MT
1974 help
1975 Includes a loader for loading an elf relocatable object
1976 onto another VPE and running it.
1977
1978 config MIPS_MT_SMTC_IM_BACKSTOP
1979 bool "Use per-TC register bits as backstop for inhibited IM bits"
1980 depends on MIPS_MT_SMTC
1981 default n
1982 help
1983 To support multiple TC microthreads acting as "CPUs" within
1984 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1985 during interrupt handling. To support legacy drivers and interrupt
1986 controller management code, SMTC has a "backstop" to track and
1987 if necessary restore the interrupt mask. This has some performance
1988 impact on interrupt service overhead.
1989
1990 config MIPS_MT_SMTC_IRQAFF
1991 bool "Support IRQ affinity API"
1992 depends on MIPS_MT_SMTC
1993 default n
1994 help
1995 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1996 for SMTC Linux kernel. Requires platform support, of which
1997 an example can be found in the MIPS kernel i8259 and Malta
1998 platform code. Adds some overhead to interrupt dispatch, and
1999 should be used only if you know what you are doing.
2000
2001 config MIPS_VPE_LOADER_TOM
2002 bool "Load VPE program into memory hidden from linux"
2003 depends on MIPS_VPE_LOADER
2004 default y
2005 help
2006 The loader can use memory that is present but has been hidden from
2007 Linux using the kernel command line option "mem=xxMB". It's up to
2008 you to ensure the amount you put in the option and the space your
2009 program requires is less or equal to the amount physically present.
2010
2011 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2012 config MIPS_VPE_APSP_API
2013 bool "Enable support for AP/SP API (RTLX)"
2014 depends on MIPS_VPE_LOADER
2015 help
2016
2017 config MIPS_APSP_KSPD
2018 bool "Enable KSPD"
2019 depends on MIPS_VPE_APSP_API
2020 default y
2021 help
2022 KSPD is a kernel daemon that accepts syscall requests from the SP
2023 side, actions them and returns the results. It also handles the
2024 "exit" syscall notifying other kernel modules the SP program is
2025 exiting. You probably want to say yes here.
2026
2027 config MIPS_CMP
2028 bool "MIPS CMP framework support"
2029 depends on SYS_SUPPORTS_MIPS_CMP
2030 select SYNC_R4K
2031 select SYS_SUPPORTS_SMP
2032 select SYS_SUPPORTS_SCHED_SMT if SMP
2033 select WEAK_ORDERING
2034 default n
2035 help
2036 This is a placeholder option for the GCMP work. It will need to
2037 be handled differently...
2038
2039 config SB1_PASS_1_WORKAROUNDS
2040 bool
2041 depends on CPU_SB1_PASS_1
2042 default y
2043
2044 config SB1_PASS_2_WORKAROUNDS
2045 bool
2046 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2047 default y
2048
2049 config SB1_PASS_2_1_WORKAROUNDS
2050 bool
2051 depends on CPU_SB1 && CPU_SB1_PASS_2
2052 default y
2053
2054 config 64BIT_PHYS_ADDR
2055 bool
2056
2057 config ARCH_PHYS_ADDR_T_64BIT
2058 def_bool 64BIT_PHYS_ADDR
2059
2060 config CPU_HAS_SMARTMIPS
2061 depends on SYS_SUPPORTS_SMARTMIPS
2062 bool "Support for the SmartMIPS ASE"
2063 help
2064 SmartMIPS is a extension of the MIPS32 architecture aimed at
2065 increased security at both hardware and software level for
2066 smartcards. Enabling this option will allow proper use of the
2067 SmartMIPS instructions by Linux applications. However a kernel with
2068 this option will not work on a MIPS core without SmartMIPS core. If
2069 you don't know you probably don't have SmartMIPS and should say N
2070 here.
2071
2072 config CPU_HAS_WB
2073 bool
2074
2075 config XKS01
2076 bool
2077
2078 #
2079 # Vectored interrupt mode is an R2 feature
2080 #
2081 config CPU_MIPSR2_IRQ_VI
2082 bool
2083
2084 #
2085 # Extended interrupt mode is an R2 feature
2086 #
2087 config CPU_MIPSR2_IRQ_EI
2088 bool
2089
2090 config CPU_HAS_SYNC
2091 bool
2092 depends on !CPU_R3000
2093 default y
2094
2095 #
2096 # CPU non-features
2097 #
2098 config CPU_DADDI_WORKAROUNDS
2099 bool
2100
2101 config CPU_R4000_WORKAROUNDS
2102 bool
2103 select CPU_R4400_WORKAROUNDS
2104
2105 config CPU_R4400_WORKAROUNDS
2106 bool
2107
2108 #
2109 # - Highmem only makes sense for the 32-bit kernel.
2110 # - The current highmem code will only work properly on physically indexed
2111 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2112 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2113 # moment we protect the user and offer the highmem option only on machines
2114 # where it's known to be safe. This will not offer highmem on a few systems
2115 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2116 # indexed CPUs but we're playing safe.
2117 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2118 # know they might have memory configurations that could make use of highmem
2119 # support.
2120 #
2121 config HIGHMEM
2122 bool "High Memory Support"
2123 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2124
2125 config CPU_SUPPORTS_HIGHMEM
2126 bool
2127
2128 config SYS_SUPPORTS_HIGHMEM
2129 bool
2130
2131 config SYS_SUPPORTS_SMARTMIPS
2132 bool
2133
2134 config ARCH_FLATMEM_ENABLE
2135 def_bool y
2136 depends on !NUMA && !CPU_LOONGSON2
2137
2138 config ARCH_DISCONTIGMEM_ENABLE
2139 bool
2140 default y if SGI_IP27
2141 help
2142 Say Y to support efficient handling of discontiguous physical memory,
2143 for architectures which are either NUMA (Non-Uniform Memory Access)
2144 or have huge holes in the physical address space for other reasons.
2145 See <file:Documentation/vm/numa> for more.
2146
2147 config ARCH_SPARSEMEM_ENABLE
2148 bool
2149 select SPARSEMEM_STATIC
2150
2151 config NUMA
2152 bool "NUMA Support"
2153 depends on SYS_SUPPORTS_NUMA
2154 help
2155 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2156 Access). This option improves performance on systems with more
2157 than two nodes; on two node systems it is generally better to
2158 leave it disabled; on single node systems disable this option
2159 disabled.
2160
2161 config SYS_SUPPORTS_NUMA
2162 bool
2163
2164 config NODES_SHIFT
2165 int
2166 default "6"
2167 depends on NEED_MULTIPLE_NODES
2168
2169 config HW_PERF_EVENTS
2170 bool "Enable hardware performance counter support for perf events"
2171 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2172 default y
2173 help
2174 Enable hardware performance counter support for perf events. If
2175 disabled, perf events will use software events only.
2176
2177 source "mm/Kconfig"
2178
2179 config SMP
2180 bool "Multi-Processing support"
2181 depends on SYS_SUPPORTS_SMP
2182 select IRQ_PER_CPU
2183 select USE_GENERIC_SMP_HELPERS
2184 help
2185 This enables support for systems with more than one CPU. If you have
2186 a system with only one CPU, like most personal computers, say N. If
2187 you have a system with more than one CPU, say Y.
2188
2189 If you say N here, the kernel will run on single and multiprocessor
2190 machines, but will use only one CPU of a multiprocessor machine. If
2191 you say Y here, the kernel will run on many, but not all,
2192 singleprocessor machines. On a singleprocessor machine, the kernel
2193 will run faster if you say N here.
2194
2195 People using multiprocessor machines who say Y here should also say
2196 Y to "Enhanced Real Time Clock Support", below.
2197
2198 See also the SMP-HOWTO available at
2199 <http://www.tldp.org/docs.html#howto>.
2200
2201 If you don't know what to do here, say N.
2202
2203 config SMP_UP
2204 bool
2205
2206 config SYS_SUPPORTS_MIPS_CMP
2207 bool
2208
2209 config SYS_SUPPORTS_SMP
2210 bool
2211
2212 config NR_CPUS_DEFAULT_1
2213 bool
2214
2215 config NR_CPUS_DEFAULT_2
2216 bool
2217
2218 config NR_CPUS_DEFAULT_4
2219 bool
2220
2221 config NR_CPUS_DEFAULT_8
2222 bool
2223
2224 config NR_CPUS_DEFAULT_16
2225 bool
2226
2227 config NR_CPUS_DEFAULT_32
2228 bool
2229
2230 config NR_CPUS_DEFAULT_64
2231 bool
2232
2233 config NR_CPUS
2234 int "Maximum number of CPUs (2-64)"
2235 range 1 64 if NR_CPUS_DEFAULT_1
2236 depends on SMP
2237 default "1" if NR_CPUS_DEFAULT_1
2238 default "2" if NR_CPUS_DEFAULT_2
2239 default "4" if NR_CPUS_DEFAULT_4
2240 default "8" if NR_CPUS_DEFAULT_8
2241 default "16" if NR_CPUS_DEFAULT_16
2242 default "32" if NR_CPUS_DEFAULT_32
2243 default "64" if NR_CPUS_DEFAULT_64
2244 help
2245 This allows you to specify the maximum number of CPUs which this
2246 kernel will support. The maximum supported value is 32 for 32-bit
2247 kernel and 64 for 64-bit kernels; the minimum value which makes
2248 sense is 1 for Qemu (useful only for kernel debugging purposes)
2249 and 2 for all others.
2250
2251 This is purely to save memory - each supported CPU adds
2252 approximately eight kilobytes to the kernel image. For best
2253 performance should round up your number of processors to the next
2254 power of two.
2255
2256 #
2257 # Timer Interrupt Frequency Configuration
2258 #
2259
2260 choice
2261 prompt "Timer frequency"
2262 default HZ_250
2263 help
2264 Allows the configuration of the timer frequency.
2265
2266 config HZ_48
2267 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2268
2269 config HZ_100
2270 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2271
2272 config HZ_128
2273 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2274
2275 config HZ_250
2276 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2277
2278 config HZ_256
2279 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2280
2281 config HZ_1000
2282 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2283
2284 config HZ_1024
2285 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2286
2287 endchoice
2288
2289 config SYS_SUPPORTS_48HZ
2290 bool
2291
2292 config SYS_SUPPORTS_100HZ
2293 bool
2294
2295 config SYS_SUPPORTS_128HZ
2296 bool
2297
2298 config SYS_SUPPORTS_250HZ
2299 bool
2300
2301 config SYS_SUPPORTS_256HZ
2302 bool
2303
2304 config SYS_SUPPORTS_1000HZ
2305 bool
2306
2307 config SYS_SUPPORTS_1024HZ
2308 bool
2309
2310 config SYS_SUPPORTS_ARBIT_HZ
2311 bool
2312 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2313 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2314 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2315 !SYS_SUPPORTS_1024HZ
2316
2317 config HZ
2318 int
2319 default 48 if HZ_48
2320 default 100 if HZ_100
2321 default 128 if HZ_128
2322 default 250 if HZ_250
2323 default 256 if HZ_256
2324 default 1000 if HZ_1000
2325 default 1024 if HZ_1024
2326
2327 source "kernel/Kconfig.preempt"
2328
2329 config KEXEC
2330 bool "Kexec system call (EXPERIMENTAL)"
2331 depends on EXPERIMENTAL
2332 help
2333 kexec is a system call that implements the ability to shutdown your
2334 current kernel, and to start another kernel. It is like a reboot
2335 but it is independent of the system firmware. And like a reboot
2336 you can start any kernel with it, not just Linux.
2337
2338 The name comes from the similarity to the exec system call.
2339
2340 It is an ongoing process to be certain the hardware in a machine
2341 is properly shutdown, so do not be surprised if this code does not
2342 initially work for you. It may help to enable device hotplugging
2343 support. As of this writing the exact hardware interface is
2344 strongly in flux, so no good recommendation can be made.
2345
2346 config SECCOMP
2347 bool "Enable seccomp to safely compute untrusted bytecode"
2348 depends on PROC_FS
2349 default y
2350 help
2351 This kernel feature is useful for number crunching applications
2352 that may need to compute untrusted bytecode during their
2353 execution. By using pipes or other transports made available to
2354 the process as file descriptors supporting the read/write
2355 syscalls, it's possible to isolate those applications in
2356 their own address space using seccomp. Once seccomp is
2357 enabled via /proc/<pid>/seccomp, it cannot be disabled
2358 and the task is only allowed to execute a few safe syscalls
2359 defined by each seccomp mode.
2360
2361 If unsure, say Y. Only embedded should say N here.
2362
2363 config USE_OF
2364 bool "Flattened Device Tree support"
2365 select OF
2366 select OF_EARLY_FLATTREE
2367 select IRQ_DOMAIN
2368 help
2369 Include support for flattened device tree machine descriptions.
2370
2371 endmenu
2372
2373 config LOCKDEP_SUPPORT
2374 bool
2375 default y
2376
2377 config STACKTRACE_SUPPORT
2378 bool
2379 default y
2380
2381 source "init/Kconfig"
2382
2383 source "kernel/Kconfig.freezer"
2384
2385 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2386
2387 config HW_HAS_EISA
2388 bool
2389 config HW_HAS_PCI
2390 bool
2391
2392 config PCI
2393 bool "Support for PCI controller"
2394 depends on HW_HAS_PCI
2395 select PCI_DOMAINS
2396 select GENERIC_PCI_IOMAP
2397 select NO_GENERIC_PCI_IOPORT_MAP
2398 help
2399 Find out whether you have a PCI motherboard. PCI is the name of a
2400 bus system, i.e. the way the CPU talks to the other stuff inside
2401 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2402 say Y, otherwise N.
2403
2404 config PCI_DOMAINS
2405 bool
2406
2407 source "drivers/pci/Kconfig"
2408
2409 source "drivers/pci/pcie/Kconfig"
2410
2411 #
2412 # ISA support is now enabled via select. Too many systems still have the one
2413 # or other ISA chip on the board that users don't know about so don't expect
2414 # users to choose the right thing ...
2415 #
2416 config ISA
2417 bool
2418
2419 config EISA
2420 bool "EISA support"
2421 depends on HW_HAS_EISA
2422 select ISA
2423 select GENERIC_ISA_DMA
2424 ---help---
2425 The Extended Industry Standard Architecture (EISA) bus was
2426 developed as an open alternative to the IBM MicroChannel bus.
2427
2428 The EISA bus provided some of the features of the IBM MicroChannel
2429 bus while maintaining backward compatibility with cards made for
2430 the older ISA bus. The EISA bus saw limited use between 1988 and
2431 1995 when it was made obsolete by the PCI bus.
2432
2433 Say Y here if you are building a kernel for an EISA-based machine.
2434
2435 Otherwise, say N.
2436
2437 source "drivers/eisa/Kconfig"
2438
2439 config TC
2440 bool "TURBOchannel support"
2441 depends on MACH_DECSTATION
2442 help
2443 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2444 processors. TURBOchannel programming specifications are available
2445 at:
2446 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2447 and:
2448 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2449 Linux driver support status is documented at:
2450 <http://www.linux-mips.org/wiki/DECstation>
2451
2452 config MMU
2453 bool
2454 default y
2455
2456 config I8253
2457 bool
2458 select CLKSRC_I8253
2459 select CLKEVT_I8253
2460 select MIPS_EXTERNAL_TIMER
2461
2462 config ZONE_DMA32
2463 bool
2464
2465 source "drivers/pcmcia/Kconfig"
2466
2467 source "drivers/pci/hotplug/Kconfig"
2468
2469 config RAPIDIO
2470 bool "RapidIO support"
2471 depends on PCI
2472 default n
2473 help
2474 If you say Y here, the kernel will include drivers and
2475 infrastructure code to support RapidIO interconnect devices.
2476
2477 source "drivers/rapidio/Kconfig"
2478
2479 endmenu
2480
2481 menu "Executable file formats"
2482
2483 source "fs/Kconfig.binfmt"
2484
2485 config TRAD_SIGNALS
2486 bool
2487
2488 config MIPS32_COMPAT
2489 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2490 depends on 64BIT
2491 help
2492 Select this option if you want Linux/MIPS 32-bit binary
2493 compatibility. Since all software available for Linux/MIPS is
2494 currently 32-bit you should say Y here.
2495
2496 config COMPAT
2497 bool
2498 depends on MIPS32_COMPAT
2499 select ARCH_WANT_OLD_COMPAT_IPC
2500 default y
2501
2502 config SYSVIPC_COMPAT
2503 bool
2504 depends on COMPAT && SYSVIPC
2505 default y
2506
2507 config MIPS32_O32
2508 bool "Kernel support for o32 binaries"
2509 depends on MIPS32_COMPAT
2510 help
2511 Select this option if you want to run o32 binaries. These are pure
2512 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2513 existing binaries are in this format.
2514
2515 If unsure, say Y.
2516
2517 config MIPS32_N32
2518 bool "Kernel support for n32 binaries"
2519 depends on MIPS32_COMPAT
2520 help
2521 Select this option if you want to run n32 binaries. These are
2522 64-bit binaries using 32-bit quantities for addressing and certain
2523 data that would normally be 64-bit. They are used in special
2524 cases.
2525
2526 If unsure, say N.
2527
2528 config BINFMT_ELF32
2529 bool
2530 default y if MIPS32_O32 || MIPS32_N32
2531
2532 endmenu
2533
2534 menu "Power management options"
2535
2536 config ARCH_HIBERNATION_POSSIBLE
2537 def_bool y
2538 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2539
2540 config ARCH_SUSPEND_POSSIBLE
2541 def_bool y
2542 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2543
2544 source "kernel/power/Kconfig"
2545
2546 endmenu
2547
2548 source "arch/mips/kernel/cpufreq/Kconfig"
2549
2550 source "net/Kconfig"
2551
2552 source "drivers/Kconfig"
2553
2554 source "fs/Kconfig"
2555
2556 source "arch/mips/Kconfig.debug"
2557
2558 source "security/Kconfig"
2559
2560 source "crypto/Kconfig"
2561
2562 source "lib/Kconfig"
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