memcg: fix mutex not unlocked on memcg_create_kmem_cache fail path
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
12 select HAVE_ARCH_KGDB
13 select HAVE_ARCH_TRACEHOOK
14 select ARCH_HAVE_CUSTOM_GPIO_H
15 select HAVE_FUNCTION_TRACER
16 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
17 select HAVE_DYNAMIC_FTRACE
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_C_RECORDMCOUNT
20 select HAVE_FUNCTION_GRAPH_TRACER
21 select HAVE_KPROBES
22 select HAVE_KRETPROBES
23 select HAVE_DEBUG_KMEMLEAK
24 select HAVE_SYSCALL_TRACEPOINTS
25 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
26 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
27 select RTC_LIB if !MACH_LOONGSON
28 select GENERIC_ATOMIC64 if !64BIT
29 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
30 select HAVE_DMA_ATTRS
31 select HAVE_DMA_API_DEBUG
32 select GENERIC_IRQ_PROBE
33 select GENERIC_IRQ_SHOW
34 select GENERIC_PCI_IOMAP
35 select HAVE_ARCH_JUMP_LABEL
36 select ARCH_WANT_IPC_PARSE_VERSION
37 select IRQ_FORCED_THREADING
38 select HAVE_MEMBLOCK
39 select HAVE_MEMBLOCK_NODE_MAP
40 select ARCH_DISCARD_MEMBLOCK
41 select GENERIC_SMP_IDLE_THREAD
42 select BUILDTIME_EXTABLE_SORT
43 select GENERIC_CLOCKEVENTS
44 select GENERIC_CMOS_UPDATE
45 select HAVE_MOD_ARCH_SPECIFIC
46 select VIRT_TO_BUS
47 select MODULES_USE_ELF_REL if MODULES
48 select MODULES_USE_ELF_RELA if MODULES && 64BIT
49 select CLONE_BACKWARDS
50 select HAVE_DEBUG_STACKOVERFLOW
51 select HAVE_CC_STACKPROTECTOR
52
53 menu "Machine selection"
54
55 choice
56 prompt "System type"
57 default SGI_IP22
58
59 config MIPS_ALCHEMY
60 bool "Alchemy processor based machines"
61 select 64BIT_PHYS_ADDR
62 select CEVT_R4K
63 select CSRC_R4K
64 select IRQ_CPU
65 select SYS_HAS_CPU_MIPS32_R1
66 select SYS_SUPPORTS_32BIT_KERNEL
67 select SYS_SUPPORTS_APM_EMULATION
68 select ARCH_REQUIRE_GPIOLIB
69 select SYS_SUPPORTS_ZBOOT
70 select USB_ARCH_HAS_OHCI
71 select USB_ARCH_HAS_EHCI
72
73 config AR7
74 bool "Texas Instruments AR7"
75 select BOOT_ELF32
76 select DMA_NONCOHERENT
77 select CEVT_R4K
78 select CSRC_R4K
79 select IRQ_CPU
80 select NO_EXCEPT_FILL
81 select SWAP_IO_SPACE
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
86 select SYS_SUPPORTS_ZBOOT_UART16550
87 select ARCH_REQUIRE_GPIOLIB
88 select VLYNQ
89 select HAVE_CLK
90 help
91 Support for the Texas Instruments AR7 System-on-a-Chip
92 family: TNETD7100, 7200 and 7300.
93
94 config ATH79
95 bool "Atheros AR71XX/AR724X/AR913X based boards"
96 select ARCH_REQUIRE_GPIOLIB
97 select BOOT_RAW
98 select CEVT_R4K
99 select CSRC_R4K
100 select DMA_NONCOHERENT
101 select HAVE_CLK
102 select CLKDEV_LOOKUP
103 select IRQ_CPU
104 select MIPS_MACHINE
105 select SYS_HAS_CPU_MIPS32_R2
106 select SYS_HAS_EARLY_PRINTK
107 select SYS_SUPPORTS_32BIT_KERNEL
108 select SYS_SUPPORTS_BIG_ENDIAN
109 help
110 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
111
112 config BCM47XX
113 bool "Broadcom BCM47XX based boards"
114 select ARCH_WANT_OPTIONAL_GPIOLIB
115 select BOOT_RAW
116 select CEVT_R4K
117 select CSRC_R4K
118 select DMA_NONCOHERENT
119 select FW_CFE
120 select HW_HAS_PCI
121 select IRQ_CPU
122 select SYS_HAS_CPU_MIPS32_R1
123 select NO_EXCEPT_FILL
124 select SYS_SUPPORTS_32BIT_KERNEL
125 select SYS_SUPPORTS_LITTLE_ENDIAN
126 select SYS_HAS_EARLY_PRINTK
127 help
128 Support for BCM47XX based boards
129
130 config BCM63XX
131 bool "Broadcom BCM63XX based boards"
132 select BOOT_RAW
133 select CEVT_R4K
134 select CSRC_R4K
135 select DMA_NONCOHERENT
136 select IRQ_CPU
137 select SYS_HAS_CPU_MIPS32_R1
138 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_BIG_ENDIAN
141 select SYS_HAS_EARLY_PRINTK
142 select SWAP_IO_SPACE
143 select ARCH_REQUIRE_GPIOLIB
144 select HAVE_CLK
145 help
146 Support for BCM63XX based boards
147
148 config MIPS_COBALT
149 bool "Cobalt Server"
150 select CEVT_R4K
151 select CSRC_R4K
152 select CEVT_GT641XX
153 select DMA_NONCOHERENT
154 select EARLY_PRINTK_8250 if EARLY_PRINTK
155 select HW_HAS_PCI
156 select I8253
157 select I8259
158 select IRQ_CPU
159 select IRQ_GT641XX
160 select PCI_GT64XXX_PCI0
161 select PCI
162 select SYS_HAS_CPU_NEVADA
163 select SYS_HAS_EARLY_PRINTK
164 select SYS_SUPPORTS_32BIT_KERNEL
165 select SYS_SUPPORTS_64BIT_KERNEL
166 select SYS_SUPPORTS_LITTLE_ENDIAN
167
168 config MACH_DECSTATION
169 bool "DECstations"
170 select BOOT_ELF32
171 select CEVT_DS1287
172 select CEVT_R4K
173 select CSRC_IOASIC
174 select CSRC_R4K
175 select CPU_DADDI_WORKAROUNDS if 64BIT
176 select CPU_R4000_WORKAROUNDS if 64BIT
177 select CPU_R4400_WORKAROUNDS if 64BIT
178 select DMA_NONCOHERENT
179 select NO_IOPORT
180 select IRQ_CPU
181 select SYS_HAS_CPU_R3000
182 select SYS_HAS_CPU_R4X00
183 select SYS_SUPPORTS_32BIT_KERNEL
184 select SYS_SUPPORTS_64BIT_KERNEL
185 select SYS_SUPPORTS_LITTLE_ENDIAN
186 select SYS_SUPPORTS_128HZ
187 select SYS_SUPPORTS_256HZ
188 select SYS_SUPPORTS_1024HZ
189 help
190 This enables support for DEC's MIPS based workstations. For details
191 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192 DECstation porting pages on <http://decstation.unix-ag.org/>.
193
194 If you have one of the following DECstation Models you definitely
195 want to choose R4xx0 for the CPU Type:
196
197 DECstation 5000/50
198 DECstation 5000/150
199 DECstation 5000/260
200 DECsystem 5900/260
201
202 otherwise choose R3000.
203
204 config MACH_JAZZ
205 bool "Jazz family of machines"
206 select FW_ARC
207 select FW_ARC32
208 select ARCH_MAY_HAVE_PC_FDC
209 select CEVT_R4K
210 select CSRC_R4K
211 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
212 select GENERIC_ISA_DMA
213 select HAVE_PCSPKR_PLATFORM
214 select IRQ_CPU
215 select I8253
216 select I8259
217 select ISA
218 select SYS_HAS_CPU_R4X00
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_64BIT_KERNEL
221 select SYS_SUPPORTS_100HZ
222 help
223 This a family of machines based on the MIPS R4030 chipset which was
224 used by several vendors to build RISC/os and Windows NT workstations.
225 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
226 Olivetti M700-10 workstations.
227
228 config MACH_JZ4740
229 bool "Ingenic JZ4740 based machines"
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_LITTLE_ENDIAN
233 select SYS_SUPPORTS_ZBOOT_UART16550
234 select DMA_NONCOHERENT
235 select IRQ_CPU
236 select ARCH_REQUIRE_GPIOLIB
237 select SYS_HAS_EARLY_PRINTK
238 select HAVE_PWM
239 select HAVE_CLK
240 select GENERIC_IRQ_CHIP
241
242 config LANTIQ
243 bool "Lantiq based platforms"
244 select DMA_NONCOHERENT
245 select IRQ_CPU
246 select CEVT_R4K
247 select CSRC_R4K
248 select SYS_HAS_CPU_MIPS32_R1
249 select SYS_HAS_CPU_MIPS32_R2
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_MULTITHREADING
253 select SYS_HAS_EARLY_PRINTK
254 select ARCH_REQUIRE_GPIOLIB
255 select SWAP_IO_SPACE
256 select BOOT_RAW
257 select HAVE_MACH_CLKDEV
258 select CLKDEV_LOOKUP
259 select USE_OF
260 select PINCTRL
261 select PINCTRL_LANTIQ
262
263 config LASAT
264 bool "LASAT Networks platforms"
265 select CEVT_R4K
266 select CSRC_R4K
267 select DMA_NONCOHERENT
268 select SYS_HAS_EARLY_PRINTK
269 select HW_HAS_PCI
270 select IRQ_CPU
271 select PCI_GT64XXX_PCI0
272 select MIPS_NILE4
273 select R5000_CPU_SCACHE
274 select SYS_HAS_CPU_R5000
275 select SYS_SUPPORTS_32BIT_KERNEL
276 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
277 select SYS_SUPPORTS_LITTLE_ENDIAN
278
279 config MACH_LOONGSON
280 bool "Loongson family of machines"
281 select SYS_SUPPORTS_ZBOOT
282 help
283 This enables the support of Loongson family of machines.
284
285 Loongson is a family of general-purpose MIPS-compatible CPUs.
286 developed at Institute of Computing Technology (ICT),
287 Chinese Academy of Sciences (CAS) in the People's Republic
288 of China. The chief architect is Professor Weiwu Hu.
289
290 config MACH_LOONGSON1
291 bool "Loongson 1 family of machines"
292 select SYS_SUPPORTS_ZBOOT
293 help
294 This enables support for the Loongson 1 based machines.
295
296 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
297 the ICT (Institute of Computing Technology) and the Chinese Academy
298 of Sciences.
299
300 config MIPS_MALTA
301 bool "MIPS Malta board"
302 select ARCH_MAY_HAVE_PC_FDC
303 select BOOT_ELF32
304 select BOOT_RAW
305 select CEVT_R4K
306 select CSRC_R4K
307 select CSRC_GIC
308 select DMA_NONCOHERENT
309 select GENERIC_ISA_DMA
310 select HAVE_PCSPKR_PLATFORM
311 select IRQ_CPU
312 select IRQ_GIC
313 select HW_HAS_PCI
314 select I8253
315 select I8259
316 select MIPS_BONITO64
317 select MIPS_CPU_SCACHE
318 select PCI_GT64XXX_PCI0
319 select MIPS_MSC
320 select SWAP_IO_SPACE
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_HAS_CPU_MIPS64_R1
324 select SYS_HAS_CPU_MIPS64_R2
325 select SYS_HAS_CPU_NEVADA
326 select SYS_HAS_CPU_RM7000
327 select SYS_HAS_EARLY_PRINTK
328 select SYS_SUPPORTS_32BIT_KERNEL
329 select SYS_SUPPORTS_64BIT_KERNEL
330 select SYS_SUPPORTS_BIG_ENDIAN
331 select SYS_SUPPORTS_LITTLE_ENDIAN
332 select SYS_SUPPORTS_MIPS_CMP
333 select SYS_SUPPORTS_MULTITHREADING
334 select SYS_SUPPORTS_SMARTMIPS
335 select SYS_SUPPORTS_ZBOOT
336 help
337 This enables support for the MIPS Technologies Malta evaluation
338 board.
339
340 config MIPS_SEAD3
341 bool "MIPS SEAD3 board"
342 select BOOT_ELF32
343 select BOOT_RAW
344 select CEVT_R4K
345 select CSRC_R4K
346 select CSRC_GIC
347 select CPU_MIPSR2_IRQ_VI
348 select CPU_MIPSR2_IRQ_EI
349 select DMA_NONCOHERENT
350 select IRQ_CPU
351 select IRQ_GIC
352 select MIPS_MSC
353 select SYS_HAS_CPU_MIPS32_R1
354 select SYS_HAS_CPU_MIPS32_R2
355 select SYS_HAS_CPU_MIPS64_R1
356 select SYS_HAS_EARLY_PRINTK
357 select SYS_SUPPORTS_32BIT_KERNEL
358 select SYS_SUPPORTS_64BIT_KERNEL
359 select SYS_SUPPORTS_BIG_ENDIAN
360 select SYS_SUPPORTS_LITTLE_ENDIAN
361 select SYS_SUPPORTS_SMARTMIPS
362 select SYS_SUPPORTS_MICROMIPS
363 select USB_ARCH_HAS_EHCI
364 select USB_EHCI_BIG_ENDIAN_DESC
365 select USB_EHCI_BIG_ENDIAN_MMIO
366 select USE_OF
367 help
368 This enables support for the MIPS Technologies SEAD3 evaluation
369 board.
370
371 config NEC_MARKEINS
372 bool "NEC EMMA2RH Mark-eins board"
373 select SOC_EMMA2RH
374 select HW_HAS_PCI
375 help
376 This enables support for the NEC Electronics Mark-eins boards.
377
378 config MACH_VR41XX
379 bool "NEC VR4100 series based machines"
380 select CEVT_R4K
381 select CSRC_R4K
382 select SYS_HAS_CPU_VR41XX
383 select ARCH_REQUIRE_GPIOLIB
384
385 config NXP_STB220
386 bool "NXP STB220 board"
387 select SOC_PNX833X
388 help
389 Support for NXP Semiconductors STB220 Development Board.
390
391 config NXP_STB225
392 bool "NXP 225 board"
393 select SOC_PNX833X
394 select SOC_PNX8335
395 help
396 Support for NXP Semiconductors STB225 Development Board.
397
398 config PMC_MSP
399 bool "PMC-Sierra MSP chipsets"
400 select CEVT_R4K
401 select CSRC_R4K
402 select DMA_NONCOHERENT
403 select SWAP_IO_SPACE
404 select NO_EXCEPT_FILL
405 select BOOT_RAW
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
410 select IRQ_CPU
411 select SERIAL_8250
412 select SERIAL_8250_CONSOLE
413 select USB_EHCI_BIG_ENDIAN_MMIO
414 select USB_EHCI_BIG_ENDIAN_DESC
415 help
416 This adds support for the PMC-Sierra family of Multi-Service
417 Processor System-On-A-Chips. These parts include a number
418 of integrated peripherals, interfaces and DSPs in addition to
419 a variety of MIPS cores.
420
421 config RALINK
422 bool "Ralink based machines"
423 select CEVT_R4K
424 select CSRC_R4K
425 select BOOT_RAW
426 select DMA_NONCOHERENT
427 select IRQ_CPU
428 select USE_OF
429 select SYS_HAS_CPU_MIPS32_R1
430 select SYS_HAS_CPU_MIPS32_R2
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_LITTLE_ENDIAN
433 select SYS_HAS_EARLY_PRINTK
434 select HAVE_MACH_CLKDEV
435 select CLKDEV_LOOKUP
436 select ARCH_HAS_RESET_CONTROLLER
437 select RESET_CONTROLLER
438
439 config SGI_IP22
440 bool "SGI IP22 (Indy/Indigo2)"
441 select FW_ARC
442 select FW_ARC32
443 select BOOT_ELF32
444 select CEVT_R4K
445 select CSRC_R4K
446 select DEFAULT_SGI_PARTITION
447 select DMA_NONCOHERENT
448 select HW_HAS_EISA
449 select I8253
450 select I8259
451 select IP22_CPU_SCACHE
452 select IRQ_CPU
453 select GENERIC_ISA_DMA_SUPPORT_BROKEN
454 select SGI_HAS_I8042
455 select SGI_HAS_INDYDOG
456 select SGI_HAS_HAL2
457 select SGI_HAS_SEEQ
458 select SGI_HAS_WD93
459 select SGI_HAS_ZILOG
460 select SWAP_IO_SPACE
461 select SYS_HAS_CPU_R4X00
462 select SYS_HAS_CPU_R5000
463 #
464 # Disable EARLY_PRINTK for now since it leads to overwritten prom
465 # memory during early boot on some machines.
466 #
467 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468 # for a more details discussion
469 #
470 # select SYS_HAS_EARLY_PRINTK
471 select SYS_SUPPORTS_32BIT_KERNEL
472 select SYS_SUPPORTS_64BIT_KERNEL
473 select SYS_SUPPORTS_BIG_ENDIAN
474 help
475 This are the SGI Indy, Challenge S and Indigo2, as well as certain
476 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
477 that runs on these, say Y here.
478
479 config SGI_IP27
480 bool "SGI IP27 (Origin200/2000)"
481 select FW_ARC
482 select FW_ARC64
483 select BOOT_ELF64
484 select DEFAULT_SGI_PARTITION
485 select DMA_COHERENT
486 select SYS_HAS_EARLY_PRINTK
487 select HW_HAS_PCI
488 select NR_CPUS_DEFAULT_64
489 select SYS_HAS_CPU_R10000
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select SYS_SUPPORTS_NUMA
493 select SYS_SUPPORTS_SMP
494 help
495 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
496 workstations. To compile a Linux kernel that runs on these, say Y
497 here.
498
499 config SGI_IP28
500 bool "SGI IP28 (Indigo2 R10k)"
501 select FW_ARC
502 select FW_ARC64
503 select BOOT_ELF64
504 select CEVT_R4K
505 select CSRC_R4K
506 select DEFAULT_SGI_PARTITION
507 select DMA_NONCOHERENT
508 select GENERIC_ISA_DMA_SUPPORT_BROKEN
509 select IRQ_CPU
510 select HW_HAS_EISA
511 select I8253
512 select I8259
513 select SGI_HAS_I8042
514 select SGI_HAS_INDYDOG
515 select SGI_HAS_HAL2
516 select SGI_HAS_SEEQ
517 select SGI_HAS_WD93
518 select SGI_HAS_ZILOG
519 select SWAP_IO_SPACE
520 select SYS_HAS_CPU_R10000
521 #
522 # Disable EARLY_PRINTK for now since it leads to overwritten prom
523 # memory during early boot on some machines.
524 #
525 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
526 # for a more details discussion
527 #
528 # select SYS_HAS_EARLY_PRINTK
529 select SYS_SUPPORTS_64BIT_KERNEL
530 select SYS_SUPPORTS_BIG_ENDIAN
531 help
532 This is the SGI Indigo2 with R10000 processor. To compile a Linux
533 kernel that runs on these, say Y here.
534
535 config SGI_IP32
536 bool "SGI IP32 (O2)"
537 select FW_ARC
538 select FW_ARC32
539 select BOOT_ELF32
540 select CEVT_R4K
541 select CSRC_R4K
542 select DMA_NONCOHERENT
543 select HW_HAS_PCI
544 select IRQ_CPU
545 select R5000_CPU_SCACHE
546 select RM7000_CPU_SCACHE
547 select SYS_HAS_CPU_R5000
548 select SYS_HAS_CPU_R10000 if BROKEN
549 select SYS_HAS_CPU_RM7000
550 select SYS_HAS_CPU_NEVADA
551 select SYS_SUPPORTS_64BIT_KERNEL
552 select SYS_SUPPORTS_BIG_ENDIAN
553 help
554 If you want this kernel to run on SGI O2 workstation, say Y here.
555
556 config SIBYTE_CRHINE
557 bool "Sibyte BCM91120C-CRhine"
558 select BOOT_ELF32
559 select DMA_COHERENT
560 select SIBYTE_BCM1120
561 select SWAP_IO_SPACE
562 select SYS_HAS_CPU_SB1
563 select SYS_SUPPORTS_BIG_ENDIAN
564 select SYS_SUPPORTS_LITTLE_ENDIAN
565
566 config SIBYTE_CARMEL
567 bool "Sibyte BCM91120x-Carmel"
568 select BOOT_ELF32
569 select DMA_COHERENT
570 select SIBYTE_BCM1120
571 select SWAP_IO_SPACE
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_LITTLE_ENDIAN
575
576 config SIBYTE_CRHONE
577 bool "Sibyte BCM91125C-CRhone"
578 select BOOT_ELF32
579 select DMA_COHERENT
580 select SIBYTE_BCM1125
581 select SWAP_IO_SPACE
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
586
587 config SIBYTE_RHONE
588 bool "Sibyte BCM91125E-Rhone"
589 select BOOT_ELF32
590 select DMA_COHERENT
591 select SIBYTE_BCM1125H
592 select SWAP_IO_SPACE
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
596
597 config SIBYTE_SWARM
598 bool "Sibyte BCM91250A-SWARM"
599 select BOOT_ELF32
600 select DMA_COHERENT
601 select HAVE_PATA_PLATFORM
602 select SIBYTE_SB1250
603 select SWAP_IO_SPACE
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608 select ZONE_DMA32 if 64BIT
609
610 config SIBYTE_LITTLESUR
611 bool "Sibyte BCM91250C2-LittleSur"
612 select BOOT_ELF32
613 select DMA_COHERENT
614 select HAVE_PATA_PLATFORM
615 select SIBYTE_SB1250
616 select SWAP_IO_SPACE
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_HIGHMEM
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621
622 config SIBYTE_SENTOSA
623 bool "Sibyte BCM91250E-Sentosa"
624 select BOOT_ELF32
625 select DMA_COHERENT
626 select SIBYTE_SB1250
627 select SWAP_IO_SPACE
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_LITTLE_ENDIAN
631
632 config SIBYTE_BIGSUR
633 bool "Sibyte BCM91480B-BigSur"
634 select BOOT_ELF32
635 select DMA_COHERENT
636 select NR_CPUS_DEFAULT_4
637 select SIBYTE_BCM1x80
638 select SWAP_IO_SPACE
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_HIGHMEM
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643 select ZONE_DMA32 if 64BIT
644
645 config SNI_RM
646 bool "SNI RM200/300/400"
647 select FW_ARC if CPU_LITTLE_ENDIAN
648 select FW_ARC32 if CPU_LITTLE_ENDIAN
649 select FW_SNIPROM if CPU_BIG_ENDIAN
650 select ARCH_MAY_HAVE_PC_FDC
651 select BOOT_ELF32
652 select CEVT_R4K
653 select CSRC_R4K
654 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
655 select DMA_NONCOHERENT
656 select GENERIC_ISA_DMA
657 select HAVE_PCSPKR_PLATFORM
658 select HW_HAS_EISA
659 select HW_HAS_PCI
660 select IRQ_CPU
661 select I8253
662 select I8259
663 select ISA
664 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
665 select SYS_HAS_CPU_R4X00
666 select SYS_HAS_CPU_R5000
667 select SYS_HAS_CPU_R10000
668 select R5000_CPU_SCACHE
669 select SYS_HAS_EARLY_PRINTK
670 select SYS_SUPPORTS_32BIT_KERNEL
671 select SYS_SUPPORTS_64BIT_KERNEL
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_LITTLE_ENDIAN
675 help
676 The SNI RM200/300/400 are MIPS-based machines manufactured by
677 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
678 Technology and now in turn merged with Fujitsu. Say Y here to
679 support this machine type.
680
681 config MACH_TX39XX
682 bool "Toshiba TX39 series based machines"
683
684 config MACH_TX49XX
685 bool "Toshiba TX49 series based machines"
686
687 config MIKROTIK_RB532
688 bool "Mikrotik RB532 boards"
689 select CEVT_R4K
690 select CSRC_R4K
691 select DMA_NONCOHERENT
692 select HW_HAS_PCI
693 select IRQ_CPU
694 select SYS_HAS_CPU_MIPS32_R1
695 select SYS_SUPPORTS_32BIT_KERNEL
696 select SYS_SUPPORTS_LITTLE_ENDIAN
697 select SWAP_IO_SPACE
698 select BOOT_RAW
699 select ARCH_REQUIRE_GPIOLIB
700 help
701 Support the Mikrotik(tm) RouterBoard 532 series,
702 based on the IDT RC32434 SoC.
703
704 config CAVIUM_OCTEON_SOC
705 bool "Cavium Networks Octeon SoC based boards"
706 select CEVT_R4K
707 select 64BIT_PHYS_ADDR
708 select DMA_COHERENT
709 select SYS_SUPPORTS_64BIT_KERNEL
710 select SYS_SUPPORTS_BIG_ENDIAN
711 select EDAC_SUPPORT
712 select SYS_SUPPORTS_HOTPLUG_CPU
713 select SYS_HAS_EARLY_PRINTK
714 select SYS_HAS_CPU_CAVIUM_OCTEON
715 select SWAP_IO_SPACE
716 select HW_HAS_PCI
717 select ZONE_DMA32
718 select USB_ARCH_HAS_OHCI
719 select USB_ARCH_HAS_EHCI
720 select HOLES_IN_ZONE
721 select ARCH_REQUIRE_GPIOLIB
722 help
723 This option supports all of the Octeon reference boards from Cavium
724 Networks. It builds a kernel that dynamically determines the Octeon
725 CPU type and supports all known board reference implementations.
726 Some of the supported boards are:
727 EBT3000
728 EBH3000
729 EBH3100
730 Thunder
731 Kodama
732 Hikari
733 Say Y here for most Octeon reference boards.
734
735 config NLM_XLR_BOARD
736 bool "Netlogic XLR/XLS based systems"
737 select BOOT_ELF32
738 select NLM_COMMON
739 select SYS_HAS_CPU_XLR
740 select SYS_SUPPORTS_SMP
741 select HW_HAS_PCI
742 select SWAP_IO_SPACE
743 select SYS_SUPPORTS_32BIT_KERNEL
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select 64BIT_PHYS_ADDR
746 select SYS_SUPPORTS_BIG_ENDIAN
747 select SYS_SUPPORTS_HIGHMEM
748 select DMA_COHERENT
749 select NR_CPUS_DEFAULT_32
750 select CEVT_R4K
751 select CSRC_R4K
752 select IRQ_CPU
753 select ZONE_DMA32 if 64BIT
754 select SYNC_R4K
755 select SYS_HAS_EARLY_PRINTK
756 select USB_ARCH_HAS_OHCI if USB_SUPPORT
757 select USB_ARCH_HAS_EHCI if USB_SUPPORT
758 select SYS_SUPPORTS_ZBOOT
759 select SYS_SUPPORTS_ZBOOT_UART16550
760 help
761 Support for systems based on Netlogic XLR and XLS processors.
762 Say Y here if you have a XLR or XLS based board.
763
764 config NLM_XLP_BOARD
765 bool "Netlogic XLP based systems"
766 select BOOT_ELF32
767 select NLM_COMMON
768 select SYS_HAS_CPU_XLP
769 select SYS_SUPPORTS_SMP
770 select HW_HAS_PCI
771 select SYS_SUPPORTS_32BIT_KERNEL
772 select SYS_SUPPORTS_64BIT_KERNEL
773 select 64BIT_PHYS_ADDR
774 select SYS_SUPPORTS_BIG_ENDIAN
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776 select SYS_SUPPORTS_HIGHMEM
777 select DMA_COHERENT
778 select NR_CPUS_DEFAULT_32
779 select CEVT_R4K
780 select CSRC_R4K
781 select IRQ_CPU
782 select ZONE_DMA32 if 64BIT
783 select SYNC_R4K
784 select SYS_HAS_EARLY_PRINTK
785 select USE_OF
786 select SYS_SUPPORTS_ZBOOT
787 select SYS_SUPPORTS_ZBOOT_UART16550
788 help
789 This board is based on Netlogic XLP Processor.
790 Say Y here if you have a XLP based board.
791
792 endchoice
793
794 source "arch/mips/alchemy/Kconfig"
795 source "arch/mips/ath79/Kconfig"
796 source "arch/mips/bcm47xx/Kconfig"
797 source "arch/mips/bcm63xx/Kconfig"
798 source "arch/mips/jazz/Kconfig"
799 source "arch/mips/jz4740/Kconfig"
800 source "arch/mips/lantiq/Kconfig"
801 source "arch/mips/lasat/Kconfig"
802 source "arch/mips/pmcs-msp71xx/Kconfig"
803 source "arch/mips/ralink/Kconfig"
804 source "arch/mips/sgi-ip27/Kconfig"
805 source "arch/mips/sibyte/Kconfig"
806 source "arch/mips/txx9/Kconfig"
807 source "arch/mips/vr41xx/Kconfig"
808 source "arch/mips/cavium-octeon/Kconfig"
809 source "arch/mips/loongson/Kconfig"
810 source "arch/mips/loongson1/Kconfig"
811 source "arch/mips/netlogic/Kconfig"
812
813 endmenu
814
815 config RWSEM_GENERIC_SPINLOCK
816 bool
817 default y
818
819 config RWSEM_XCHGADD_ALGORITHM
820 bool
821
822 config ARCH_HAS_ILOG2_U32
823 bool
824 default n
825
826 config ARCH_HAS_ILOG2_U64
827 bool
828 default n
829
830 config GENERIC_HWEIGHT
831 bool
832 default y
833
834 config GENERIC_CALIBRATE_DELAY
835 bool
836 default y
837
838 config SCHED_OMIT_FRAME_POINTER
839 bool
840 default y
841
842 #
843 # Select some configuration options automatically based on user selections.
844 #
845 config FW_ARC
846 bool
847
848 config ARCH_MAY_HAVE_PC_FDC
849 bool
850
851 config BOOT_RAW
852 bool
853
854 config CEVT_BCM1480
855 bool
856
857 config CEVT_DS1287
858 bool
859
860 config CEVT_GT641XX
861 bool
862
863 config CEVT_R4K
864 bool
865
866 config CEVT_GIC
867 bool
868
869 config CEVT_SB1250
870 bool
871
872 config CEVT_TXX9
873 bool
874
875 config CSRC_BCM1480
876 bool
877
878 config CSRC_IOASIC
879 bool
880
881 config CSRC_R4K
882 bool
883
884 config CSRC_GIC
885 bool
886
887 config CSRC_SB1250
888 bool
889
890 config GPIO_TXX9
891 select ARCH_REQUIRE_GPIOLIB
892 bool
893
894 config FW_CFE
895 bool
896
897 config ARCH_DMA_ADDR_T_64BIT
898 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
899
900 config DMA_COHERENT
901 bool
902
903 config DMA_NONCOHERENT
904 bool
905 select NEED_DMA_MAP_STATE
906
907 config NEED_DMA_MAP_STATE
908 bool
909
910 config SYS_HAS_EARLY_PRINTK
911 bool
912
913 config HOTPLUG_CPU
914 bool "Support for hot-pluggable CPUs"
915 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
916 help
917 Say Y here to allow turning CPUs off and on. CPUs can be
918 controlled through /sys/devices/system/cpu.
919 (Note: power management support will enable this option
920 automatically on SMP systems. )
921 Say N if you want to disable CPU hotplug.
922
923 config SYS_SUPPORTS_HOTPLUG_CPU
924 bool
925
926 config I8259
927 bool
928
929 config MIPS_BONITO64
930 bool
931
932 config MIPS_MSC
933 bool
934
935 config MIPS_NILE4
936 bool
937
938 config SYNC_R4K
939 bool
940
941 config MIPS_MACHINE
942 def_bool n
943
944 config NO_IOPORT
945 def_bool n
946
947 config GENERIC_ISA_DMA
948 bool
949 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
950 select ISA_DMA_API
951
952 config GENERIC_ISA_DMA_SUPPORT_BROKEN
953 bool
954 select GENERIC_ISA_DMA
955
956 config ISA_DMA_API
957 bool
958
959 config HOLES_IN_ZONE
960 bool
961
962 #
963 # Endianness selection. Sufficiently obscure so many users don't know what to
964 # answer,so we try hard to limit the available choices. Also the use of a
965 # choice statement should be more obvious to the user.
966 #
967 choice
968 prompt "Endianness selection"
969 help
970 Some MIPS machines can be configured for either little or big endian
971 byte order. These modes require different kernels and a different
972 Linux distribution. In general there is one preferred byteorder for a
973 particular system but some systems are just as commonly used in the
974 one or the other endianness.
975
976 config CPU_BIG_ENDIAN
977 bool "Big endian"
978 depends on SYS_SUPPORTS_BIG_ENDIAN
979
980 config CPU_LITTLE_ENDIAN
981 bool "Little endian"
982 depends on SYS_SUPPORTS_LITTLE_ENDIAN
983
984 endchoice
985
986 config EXPORT_UASM
987 bool
988
989 config SYS_SUPPORTS_APM_EMULATION
990 bool
991
992 config SYS_SUPPORTS_BIG_ENDIAN
993 bool
994
995 config SYS_SUPPORTS_LITTLE_ENDIAN
996 bool
997
998 config SYS_SUPPORTS_HUGETLBFS
999 bool
1000 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1001 default y
1002
1003 config MIPS_HUGE_TLB_SUPPORT
1004 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1005
1006 config IRQ_CPU
1007 bool
1008
1009 config IRQ_CPU_RM7K
1010 bool
1011
1012 config IRQ_MSP_SLP
1013 bool
1014
1015 config IRQ_MSP_CIC
1016 bool
1017
1018 config IRQ_TXX9
1019 bool
1020
1021 config IRQ_GT641XX
1022 bool
1023
1024 config IRQ_GIC
1025 bool
1026
1027 config PCI_GT64XXX_PCI0
1028 bool
1029
1030 config NO_EXCEPT_FILL
1031 bool
1032
1033 config SOC_EMMA2RH
1034 bool
1035 select CEVT_R4K
1036 select CSRC_R4K
1037 select DMA_NONCOHERENT
1038 select IRQ_CPU
1039 select SWAP_IO_SPACE
1040 select SYS_HAS_CPU_R5500
1041 select SYS_SUPPORTS_32BIT_KERNEL
1042 select SYS_SUPPORTS_64BIT_KERNEL
1043 select SYS_SUPPORTS_BIG_ENDIAN
1044
1045 config SOC_PNX833X
1046 bool
1047 select CEVT_R4K
1048 select CSRC_R4K
1049 select IRQ_CPU
1050 select DMA_NONCOHERENT
1051 select SYS_HAS_CPU_MIPS32_R2
1052 select SYS_SUPPORTS_32BIT_KERNEL
1053 select SYS_SUPPORTS_LITTLE_ENDIAN
1054 select SYS_SUPPORTS_BIG_ENDIAN
1055 select CPU_MIPSR2_IRQ_VI
1056
1057 config SOC_PNX8335
1058 bool
1059 select SOC_PNX833X
1060
1061 config SWAP_IO_SPACE
1062 bool
1063
1064 config SGI_HAS_INDYDOG
1065 bool
1066
1067 config SGI_HAS_HAL2
1068 bool
1069
1070 config SGI_HAS_SEEQ
1071 bool
1072
1073 config SGI_HAS_WD93
1074 bool
1075
1076 config SGI_HAS_ZILOG
1077 bool
1078
1079 config SGI_HAS_I8042
1080 bool
1081
1082 config DEFAULT_SGI_PARTITION
1083 bool
1084
1085 config FW_ARC32
1086 bool
1087
1088 config FW_SNIPROM
1089 bool
1090
1091 config BOOT_ELF32
1092 bool
1093
1094 config MIPS_L1_CACHE_SHIFT
1095 int
1096 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1097 default "6" if MIPS_CPU_SCACHE
1098 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1099 default "5"
1100
1101 config HAVE_STD_PC_SERIAL_PORT
1102 bool
1103
1104 config ARC_CONSOLE
1105 bool "ARC console support"
1106 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1107
1108 config ARC_MEMORY
1109 bool
1110 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1111 default y
1112
1113 config ARC_PROMLIB
1114 bool
1115 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1116 default y
1117
1118 config FW_ARC64
1119 bool
1120
1121 config BOOT_ELF64
1122 bool
1123
1124 menu "CPU selection"
1125
1126 choice
1127 prompt "CPU type"
1128 default CPU_R4X00
1129
1130 config CPU_LOONGSON2E
1131 bool "Loongson 2E"
1132 depends on SYS_HAS_CPU_LOONGSON2E
1133 select CPU_LOONGSON2
1134 help
1135 The Loongson 2E processor implements the MIPS III instruction set
1136 with many extensions.
1137
1138 It has an internal FPGA northbridge, which is compatible to
1139 bonito64.
1140
1141 config CPU_LOONGSON2F
1142 bool "Loongson 2F"
1143 depends on SYS_HAS_CPU_LOONGSON2F
1144 select CPU_LOONGSON2
1145 select ARCH_REQUIRE_GPIOLIB
1146 help
1147 The Loongson 2F processor implements the MIPS III instruction set
1148 with many extensions.
1149
1150 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1151 have a similar programming interface with FPGA northbridge used in
1152 Loongson2E.
1153
1154 config CPU_LOONGSON1B
1155 bool "Loongson 1B"
1156 depends on SYS_HAS_CPU_LOONGSON1B
1157 select CPU_LOONGSON1
1158 help
1159 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1160 release 2 instruction set.
1161
1162 config CPU_MIPS32_R1
1163 bool "MIPS32 Release 1"
1164 depends on SYS_HAS_CPU_MIPS32_R1
1165 select CPU_HAS_PREFETCH
1166 select CPU_SUPPORTS_32BIT_KERNEL
1167 select CPU_SUPPORTS_HIGHMEM
1168 help
1169 Choose this option to build a kernel for release 1 or later of the
1170 MIPS32 architecture. Most modern embedded systems with a 32-bit
1171 MIPS processor are based on a MIPS32 processor. If you know the
1172 specific type of processor in your system, choose those that one
1173 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1174 Release 2 of the MIPS32 architecture is available since several
1175 years so chances are you even have a MIPS32 Release 2 processor
1176 in which case you should choose CPU_MIPS32_R2 instead for better
1177 performance.
1178
1179 config CPU_MIPS32_R2
1180 bool "MIPS32 Release 2"
1181 depends on SYS_HAS_CPU_MIPS32_R2
1182 select CPU_HAS_PREFETCH
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_HIGHMEM
1185 select HAVE_KVM
1186 help
1187 Choose this option to build a kernel for release 2 or later of the
1188 MIPS32 architecture. Most modern embedded systems with a 32-bit
1189 MIPS processor are based on a MIPS32 processor. If you know the
1190 specific type of processor in your system, choose those that one
1191 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1192
1193 config CPU_MIPS64_R1
1194 bool "MIPS64 Release 1"
1195 depends on SYS_HAS_CPU_MIPS64_R1
1196 select CPU_HAS_PREFETCH
1197 select CPU_SUPPORTS_32BIT_KERNEL
1198 select CPU_SUPPORTS_64BIT_KERNEL
1199 select CPU_SUPPORTS_HIGHMEM
1200 select CPU_SUPPORTS_HUGEPAGES
1201 help
1202 Choose this option to build a kernel for release 1 or later of the
1203 MIPS64 architecture. Many modern embedded systems with a 64-bit
1204 MIPS processor are based on a MIPS64 processor. If you know the
1205 specific type of processor in your system, choose those that one
1206 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1207 Release 2 of the MIPS64 architecture is available since several
1208 years so chances are you even have a MIPS64 Release 2 processor
1209 in which case you should choose CPU_MIPS64_R2 instead for better
1210 performance.
1211
1212 config CPU_MIPS64_R2
1213 bool "MIPS64 Release 2"
1214 depends on SYS_HAS_CPU_MIPS64_R2
1215 select CPU_HAS_PREFETCH
1216 select CPU_SUPPORTS_32BIT_KERNEL
1217 select CPU_SUPPORTS_64BIT_KERNEL
1218 select CPU_SUPPORTS_HIGHMEM
1219 select CPU_SUPPORTS_HUGEPAGES
1220 help
1221 Choose this option to build a kernel for release 2 or later of the
1222 MIPS64 architecture. Many modern embedded systems with a 64-bit
1223 MIPS processor are based on a MIPS64 processor. If you know the
1224 specific type of processor in your system, choose those that one
1225 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1226
1227 config CPU_R3000
1228 bool "R3000"
1229 depends on SYS_HAS_CPU_R3000
1230 select CPU_HAS_WB
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1233 help
1234 Please make sure to pick the right CPU type. Linux/MIPS is not
1235 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1236 *not* work on R4000 machines and vice versa. However, since most
1237 of the supported machines have an R4000 (or similar) CPU, R4x00
1238 might be a safe bet. If the resulting kernel does not work,
1239 try to recompile with R3000.
1240
1241 config CPU_TX39XX
1242 bool "R39XX"
1243 depends on SYS_HAS_CPU_TX39XX
1244 select CPU_SUPPORTS_32BIT_KERNEL
1245
1246 config CPU_VR41XX
1247 bool "R41xx"
1248 depends on SYS_HAS_CPU_VR41XX
1249 select CPU_SUPPORTS_32BIT_KERNEL
1250 select CPU_SUPPORTS_64BIT_KERNEL
1251 help
1252 The options selects support for the NEC VR4100 series of processors.
1253 Only choose this option if you have one of these processors as a
1254 kernel built with this option will not run on any other type of
1255 processor or vice versa.
1256
1257 config CPU_R4300
1258 bool "R4300"
1259 depends on SYS_HAS_CPU_R4300
1260 select CPU_SUPPORTS_32BIT_KERNEL
1261 select CPU_SUPPORTS_64BIT_KERNEL
1262 help
1263 MIPS Technologies R4300-series processors.
1264
1265 config CPU_R4X00
1266 bool "R4x00"
1267 depends on SYS_HAS_CPU_R4X00
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1270 select CPU_SUPPORTS_HUGEPAGES
1271 help
1272 MIPS Technologies R4000-series processors other than 4300, including
1273 the R4000, R4400, R4600, and 4700.
1274
1275 config CPU_TX49XX
1276 bool "R49XX"
1277 depends on SYS_HAS_CPU_TX49XX
1278 select CPU_HAS_PREFETCH
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1281 select CPU_SUPPORTS_HUGEPAGES
1282
1283 config CPU_R5000
1284 bool "R5000"
1285 depends on SYS_HAS_CPU_R5000
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HUGEPAGES
1289 help
1290 MIPS Technologies R5000-series processors other than the Nevada.
1291
1292 config CPU_R5432
1293 bool "R5432"
1294 depends on SYS_HAS_CPU_R5432
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HUGEPAGES
1298
1299 config CPU_R5500
1300 bool "R5500"
1301 depends on SYS_HAS_CPU_R5500
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303 select CPU_SUPPORTS_64BIT_KERNEL
1304 select CPU_SUPPORTS_HUGEPAGES
1305 help
1306 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1307 instruction set.
1308
1309 config CPU_R6000
1310 bool "R6000"
1311 depends on SYS_HAS_CPU_R6000
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 help
1314 MIPS Technologies R6000 and R6000A series processors. Note these
1315 processors are extremely rare and the support for them is incomplete.
1316
1317 config CPU_NEVADA
1318 bool "RM52xx"
1319 depends on SYS_HAS_CPU_NEVADA
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1323 help
1324 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1325
1326 config CPU_R8000
1327 bool "R8000"
1328 depends on SYS_HAS_CPU_R8000
1329 select CPU_HAS_PREFETCH
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331 help
1332 MIPS Technologies R8000 processors. Note these processors are
1333 uncommon and the support for them is incomplete.
1334
1335 config CPU_R10000
1336 bool "R10000"
1337 depends on SYS_HAS_CPU_R10000
1338 select CPU_HAS_PREFETCH
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HIGHMEM
1342 select CPU_SUPPORTS_HUGEPAGES
1343 help
1344 MIPS Technologies R10000-series processors.
1345
1346 config CPU_RM7000
1347 bool "RM7000"
1348 depends on SYS_HAS_CPU_RM7000
1349 select CPU_HAS_PREFETCH
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HIGHMEM
1353 select CPU_SUPPORTS_HUGEPAGES
1354
1355 config CPU_SB1
1356 bool "SB1"
1357 depends on SYS_HAS_CPU_SB1
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HIGHMEM
1361 select CPU_SUPPORTS_HUGEPAGES
1362 select WEAK_ORDERING
1363
1364 config CPU_CAVIUM_OCTEON
1365 bool "Cavium Octeon processor"
1366 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1367 select ARCH_SPARSEMEM_ENABLE
1368 select CPU_HAS_PREFETCH
1369 select CPU_SUPPORTS_64BIT_KERNEL
1370 select SYS_SUPPORTS_SMP
1371 select NR_CPUS_DEFAULT_16
1372 select WEAK_ORDERING
1373 select CPU_SUPPORTS_HIGHMEM
1374 select CPU_SUPPORTS_HUGEPAGES
1375 select LIBFDT
1376 select USE_OF
1377 select USB_EHCI_BIG_ENDIAN_MMIO
1378 help
1379 The Cavium Octeon processor is a highly integrated chip containing
1380 many ethernet hardware widgets for networking tasks. The processor
1381 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1382 Full details can be found at http://www.caviumnetworks.com.
1383
1384 config CPU_BMIPS3300
1385 bool "BMIPS3300"
1386 depends on SYS_HAS_CPU_BMIPS3300
1387 select CPU_BMIPS
1388 help
1389 Broadcom BMIPS3300 processors.
1390
1391 config CPU_BMIPS4350
1392 bool "BMIPS4350"
1393 depends on SYS_HAS_CPU_BMIPS4350
1394 select CPU_BMIPS
1395 select SYS_SUPPORTS_SMP
1396 select SYS_SUPPORTS_HOTPLUG_CPU
1397 help
1398 Broadcom BMIPS4350 ("VIPER") processors.
1399
1400 config CPU_BMIPS4380
1401 bool "BMIPS4380"
1402 depends on SYS_HAS_CPU_BMIPS4380
1403 select CPU_BMIPS
1404 select SYS_SUPPORTS_SMP
1405 select SYS_SUPPORTS_HOTPLUG_CPU
1406 help
1407 Broadcom BMIPS4380 processors.
1408
1409 config CPU_BMIPS5000
1410 bool "BMIPS5000"
1411 depends on SYS_HAS_CPU_BMIPS5000
1412 select CPU_BMIPS
1413 select CPU_SUPPORTS_HIGHMEM
1414 select MIPS_CPU_SCACHE
1415 select SYS_SUPPORTS_SMP
1416 select SYS_SUPPORTS_HOTPLUG_CPU
1417 help
1418 Broadcom BMIPS5000 processors.
1419
1420 config CPU_XLR
1421 bool "Netlogic XLR SoC"
1422 depends on SYS_HAS_CPU_XLR
1423 select CPU_SUPPORTS_32BIT_KERNEL
1424 select CPU_SUPPORTS_64BIT_KERNEL
1425 select CPU_SUPPORTS_HIGHMEM
1426 select CPU_SUPPORTS_HUGEPAGES
1427 select WEAK_ORDERING
1428 select WEAK_REORDERING_BEYOND_LLSC
1429 help
1430 Netlogic Microsystems XLR/XLS processors.
1431
1432 config CPU_XLP
1433 bool "Netlogic XLP SoC"
1434 depends on SYS_HAS_CPU_XLP
1435 select CPU_SUPPORTS_32BIT_KERNEL
1436 select CPU_SUPPORTS_64BIT_KERNEL
1437 select CPU_SUPPORTS_HIGHMEM
1438 select WEAK_ORDERING
1439 select WEAK_REORDERING_BEYOND_LLSC
1440 select CPU_HAS_PREFETCH
1441 select CPU_MIPSR2
1442 help
1443 Netlogic Microsystems XLP processors.
1444 endchoice
1445
1446 if CPU_LOONGSON2F
1447 config CPU_NOP_WORKAROUNDS
1448 bool
1449
1450 config CPU_JUMP_WORKAROUNDS
1451 bool
1452
1453 config CPU_LOONGSON2F_WORKAROUNDS
1454 bool "Loongson 2F Workarounds"
1455 default y
1456 select CPU_NOP_WORKAROUNDS
1457 select CPU_JUMP_WORKAROUNDS
1458 help
1459 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1460 require workarounds. Without workarounds the system may hang
1461 unexpectedly. For more information please refer to the gas
1462 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1463
1464 Loongson 2F03 and later have fixed these issues and no workarounds
1465 are needed. The workarounds have no significant side effect on them
1466 but may decrease the performance of the system so this option should
1467 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1468 systems.
1469
1470 If unsure, please say Y.
1471 endif # CPU_LOONGSON2F
1472
1473 config SYS_SUPPORTS_ZBOOT
1474 bool
1475 select HAVE_KERNEL_GZIP
1476 select HAVE_KERNEL_BZIP2
1477 select HAVE_KERNEL_LZ4
1478 select HAVE_KERNEL_LZMA
1479 select HAVE_KERNEL_LZO
1480 select HAVE_KERNEL_XZ
1481
1482 config SYS_SUPPORTS_ZBOOT_UART16550
1483 bool
1484 select SYS_SUPPORTS_ZBOOT
1485
1486 config CPU_LOONGSON2
1487 bool
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HIGHMEM
1491 select CPU_SUPPORTS_HUGEPAGES
1492
1493 config CPU_LOONGSON1
1494 bool
1495 select CPU_MIPS32
1496 select CPU_MIPSR2
1497 select CPU_HAS_PREFETCH
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499 select CPU_SUPPORTS_HIGHMEM
1500
1501 config CPU_BMIPS
1502 bool
1503 select CPU_MIPS32
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select DMA_NONCOHERENT
1506 select IRQ_CPU
1507 select SWAP_IO_SPACE
1508 select WEAK_ORDERING
1509
1510 config SYS_HAS_CPU_LOONGSON2E
1511 bool
1512
1513 config SYS_HAS_CPU_LOONGSON2F
1514 bool
1515 select CPU_SUPPORTS_CPUFREQ
1516 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1517 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1518
1519 config SYS_HAS_CPU_LOONGSON1B
1520 bool
1521
1522 config SYS_HAS_CPU_MIPS32_R1
1523 bool
1524
1525 config SYS_HAS_CPU_MIPS32_R2
1526 bool
1527
1528 config SYS_HAS_CPU_MIPS64_R1
1529 bool
1530
1531 config SYS_HAS_CPU_MIPS64_R2
1532 bool
1533
1534 config SYS_HAS_CPU_R3000
1535 bool
1536
1537 config SYS_HAS_CPU_TX39XX
1538 bool
1539
1540 config SYS_HAS_CPU_VR41XX
1541 bool
1542
1543 config SYS_HAS_CPU_R4300
1544 bool
1545
1546 config SYS_HAS_CPU_R4X00
1547 bool
1548
1549 config SYS_HAS_CPU_TX49XX
1550 bool
1551
1552 config SYS_HAS_CPU_R5000
1553 bool
1554
1555 config SYS_HAS_CPU_R5432
1556 bool
1557
1558 config SYS_HAS_CPU_R5500
1559 bool
1560
1561 config SYS_HAS_CPU_R6000
1562 bool
1563
1564 config SYS_HAS_CPU_NEVADA
1565 bool
1566
1567 config SYS_HAS_CPU_R8000
1568 bool
1569
1570 config SYS_HAS_CPU_R10000
1571 bool
1572
1573 config SYS_HAS_CPU_RM7000
1574 bool
1575
1576 config SYS_HAS_CPU_SB1
1577 bool
1578
1579 config SYS_HAS_CPU_CAVIUM_OCTEON
1580 bool
1581
1582 config SYS_HAS_CPU_BMIPS3300
1583 bool
1584
1585 config SYS_HAS_CPU_BMIPS4350
1586 bool
1587
1588 config SYS_HAS_CPU_BMIPS4380
1589 bool
1590
1591 config SYS_HAS_CPU_BMIPS5000
1592 bool
1593
1594 config SYS_HAS_CPU_XLR
1595 bool
1596
1597 config SYS_HAS_CPU_XLP
1598 bool
1599
1600 #
1601 # CPU may reorder R->R, R->W, W->R, W->W
1602 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1603 #
1604 config WEAK_ORDERING
1605 bool
1606
1607 #
1608 # CPU may reorder reads and writes beyond LL/SC
1609 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1610 #
1611 config WEAK_REORDERING_BEYOND_LLSC
1612 bool
1613 endmenu
1614
1615 #
1616 # These two indicate any level of the MIPS32 and MIPS64 architecture
1617 #
1618 config CPU_MIPS32
1619 bool
1620 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1621
1622 config CPU_MIPS64
1623 bool
1624 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1625
1626 #
1627 # These two indicate the revision of the architecture, either Release 1 or Release 2
1628 #
1629 config CPU_MIPSR1
1630 bool
1631 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1632
1633 config CPU_MIPSR2
1634 bool
1635 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1636
1637 config SYS_SUPPORTS_32BIT_KERNEL
1638 bool
1639 config SYS_SUPPORTS_64BIT_KERNEL
1640 bool
1641 config CPU_SUPPORTS_32BIT_KERNEL
1642 bool
1643 config CPU_SUPPORTS_64BIT_KERNEL
1644 bool
1645 config CPU_SUPPORTS_CPUFREQ
1646 bool
1647 config CPU_SUPPORTS_ADDRWINCFG
1648 bool
1649 config CPU_SUPPORTS_HUGEPAGES
1650 bool
1651 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1652 bool
1653 config MIPS_PGD_C0_CONTEXT
1654 bool
1655 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1656
1657 #
1658 # Set to y for ptrace access to watch registers.
1659 #
1660 config HARDWARE_WATCHPOINTS
1661 bool
1662 default y if CPU_MIPSR1 || CPU_MIPSR2
1663
1664 menu "Kernel type"
1665
1666 choice
1667 prompt "Kernel code model"
1668 help
1669 You should only select this option if you have a workload that
1670 actually benefits from 64-bit processing or if your machine has
1671 large memory. You will only be presented a single option in this
1672 menu if your system does not support both 32-bit and 64-bit kernels.
1673
1674 config 32BIT
1675 bool "32-bit kernel"
1676 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1677 select TRAD_SIGNALS
1678 help
1679 Select this option if you want to build a 32-bit kernel.
1680 config 64BIT
1681 bool "64-bit kernel"
1682 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1683 help
1684 Select this option if you want to build a 64-bit kernel.
1685
1686 endchoice
1687
1688 config KVM_GUEST
1689 bool "KVM Guest Kernel"
1690 depends on BROKEN_ON_SMP
1691 help
1692 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1693
1694 config KVM_HOST_FREQ
1695 int "KVM Host Processor Frequency (MHz)"
1696 depends on KVM_GUEST
1697 default 500
1698 help
1699 Select this option if building a guest kernel for KVM to skip
1700 RTC emulation when determining guest CPU Frequency. Instead, the guest
1701 processor frequency is automatically derived from the host frequency.
1702
1703 choice
1704 prompt "Kernel page size"
1705 default PAGE_SIZE_4KB
1706
1707 config PAGE_SIZE_4KB
1708 bool "4kB"
1709 depends on !CPU_LOONGSON2
1710 help
1711 This option select the standard 4kB Linux page size. On some
1712 R3000-family processors this is the only available page size. Using
1713 4kB page size will minimize memory consumption and is therefore
1714 recommended for low memory systems.
1715
1716 config PAGE_SIZE_8KB
1717 bool "8kB"
1718 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1719 help
1720 Using 8kB page size will result in higher performance kernel at
1721 the price of higher memory consumption. This option is available
1722 only on R8000 and cnMIPS processors. Note that you will need a
1723 suitable Linux distribution to support this.
1724
1725 config PAGE_SIZE_16KB
1726 bool "16kB"
1727 depends on !CPU_R3000 && !CPU_TX39XX
1728 help
1729 Using 16kB page size will result in higher performance kernel at
1730 the price of higher memory consumption. This option is available on
1731 all non-R3000 family processors. Note that you will need a suitable
1732 Linux distribution to support this.
1733
1734 config PAGE_SIZE_32KB
1735 bool "32kB"
1736 depends on CPU_CAVIUM_OCTEON
1737 help
1738 Using 32kB page size will result in higher performance kernel at
1739 the price of higher memory consumption. This option is available
1740 only on cnMIPS cores. Note that you will need a suitable Linux
1741 distribution to support this.
1742
1743 config PAGE_SIZE_64KB
1744 bool "64kB"
1745 depends on !CPU_R3000 && !CPU_TX39XX
1746 help
1747 Using 64kB page size will result in higher performance kernel at
1748 the price of higher memory consumption. This option is available on
1749 all non-R3000 family processor. Not that at the time of this
1750 writing this option is still high experimental.
1751
1752 endchoice
1753
1754 config FORCE_MAX_ZONEORDER
1755 int "Maximum zone order"
1756 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1757 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1758 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1759 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1760 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1761 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1762 range 11 64
1763 default "11"
1764 help
1765 The kernel memory allocator divides physically contiguous memory
1766 blocks into "zones", where each zone is a power of two number of
1767 pages. This option selects the largest power of two that the kernel
1768 keeps in the memory allocator. If you need to allocate very large
1769 blocks of physically contiguous memory, then you may need to
1770 increase this value.
1771
1772 This config option is actually maximum order plus one. For example,
1773 a value of 11 means that the largest free memory block is 2^10 pages.
1774
1775 The page size is not necessarily 4KB. Keep this in mind
1776 when choosing a value for this option.
1777
1778 config CEVT_GIC
1779 bool "Use GIC global counter for clock events"
1780 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1781 help
1782 Use the GIC global counter for the clock events. The R4K clock
1783 event driver is always present, so if the platform ends up not
1784 detecting a GIC, it will fall back to the R4K timer for the
1785 generation of clock events.
1786
1787 config BOARD_SCACHE
1788 bool
1789
1790 config IP22_CPU_SCACHE
1791 bool
1792 select BOARD_SCACHE
1793
1794 #
1795 # Support for a MIPS32 / MIPS64 style S-caches
1796 #
1797 config MIPS_CPU_SCACHE
1798 bool
1799 select BOARD_SCACHE
1800
1801 config R5000_CPU_SCACHE
1802 bool
1803 select BOARD_SCACHE
1804
1805 config RM7000_CPU_SCACHE
1806 bool
1807 select BOARD_SCACHE
1808
1809 config SIBYTE_DMA_PAGEOPS
1810 bool "Use DMA to clear/copy pages"
1811 depends on CPU_SB1
1812 help
1813 Instead of using the CPU to zero and copy pages, use a Data Mover
1814 channel. These DMA channels are otherwise unused by the standard
1815 SiByte Linux port. Seems to give a small performance benefit.
1816
1817 config CPU_HAS_PREFETCH
1818 bool
1819
1820 config CPU_GENERIC_DUMP_TLB
1821 bool
1822 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1823
1824 config CPU_R4K_FPU
1825 bool
1826 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1827
1828 config CPU_R4K_CACHE_TLB
1829 bool
1830 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1831
1832 choice
1833 prompt "MIPS MT options"
1834
1835 config MIPS_MT_DISABLED
1836 bool "Disable multithreading support."
1837 help
1838 Use this option if your workload can't take advantage of
1839 MIPS hardware multithreading support. On systems that don't have
1840 the option of an MT-enabled processor this option will be the only
1841 option in this menu.
1842
1843 config MIPS_MT_SMP
1844 bool "Use 1 TC on each available VPE for SMP"
1845 depends on SYS_SUPPORTS_MULTITHREADING
1846 select CPU_MIPSR2_IRQ_VI
1847 select CPU_MIPSR2_IRQ_EI
1848 select MIPS_MT
1849 select SMP
1850 select SYS_SUPPORTS_SCHED_SMT if SMP
1851 select SYS_SUPPORTS_SMP
1852 select SMP_UP
1853 select MIPS_PERF_SHARED_TC_COUNTERS
1854 help
1855 This is a kernel model which is known a VSMP but lately has been
1856 marketesed into SMVP.
1857 Virtual SMP uses the processor's VPEs to implement virtual
1858 processors. In currently available configuration of the 34K processor
1859 this allows for a dual processor. Both processors will share the same
1860 primary caches; each will obtain the half of the TLB for it's own
1861 exclusive use. For a layman this model can be described as similar to
1862 what Intel calls Hyperthreading.
1863
1864 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1865
1866 config MIPS_MT_SMTC
1867 bool "SMTC: Use all TCs on all VPEs for SMP"
1868 depends on CPU_MIPS32_R2
1869 #depends on CPU_MIPS64_R2 # once there is hardware ...
1870 depends on SYS_SUPPORTS_MULTITHREADING
1871 select CPU_MIPSR2_IRQ_VI
1872 select CPU_MIPSR2_IRQ_EI
1873 select MIPS_MT
1874 select NR_CPUS_DEFAULT_8
1875 select SMP
1876 select SYS_SUPPORTS_SMP
1877 select SMP_UP
1878 help
1879 This is a kernel model which is known a SMTC or lately has been
1880 marketesed into SMVP.
1881 is presenting the available TC's of the core as processors to Linux.
1882 On currently available 34K processors this means a Linux system will
1883 see up to 5 processors. The implementation of the SMTC kernel differs
1884 significantly from VSMP and cannot efficiently coexist in the same
1885 kernel binary so the choice between VSMP and SMTC is a compile time
1886 decision.
1887
1888 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1889
1890 endchoice
1891
1892 config MIPS_MT
1893 bool
1894
1895 config SCHED_SMT
1896 bool "SMT (multithreading) scheduler support"
1897 depends on SYS_SUPPORTS_SCHED_SMT
1898 default n
1899 help
1900 SMT scheduler support improves the CPU scheduler's decision making
1901 when dealing with MIPS MT enabled cores at a cost of slightly
1902 increased overhead in some places. If unsure say N here.
1903
1904 config SYS_SUPPORTS_SCHED_SMT
1905 bool
1906
1907 config SYS_SUPPORTS_MULTITHREADING
1908 bool
1909
1910 config MIPS_MT_FPAFF
1911 bool "Dynamic FPU affinity for FP-intensive threads"
1912 default y
1913 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1914
1915 config MIPS_VPE_LOADER
1916 bool "VPE loader support."
1917 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1918 select CPU_MIPSR2_IRQ_VI
1919 select CPU_MIPSR2_IRQ_EI
1920 select MIPS_MT
1921 help
1922 Includes a loader for loading an elf relocatable object
1923 onto another VPE and running it.
1924
1925 config MIPS_MT_SMTC_IM_BACKSTOP
1926 bool "Use per-TC register bits as backstop for inhibited IM bits"
1927 depends on MIPS_MT_SMTC
1928 default n
1929 help
1930 To support multiple TC microthreads acting as "CPUs" within
1931 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1932 during interrupt handling. To support legacy drivers and interrupt
1933 controller management code, SMTC has a "backstop" to track and
1934 if necessary restore the interrupt mask. This has some performance
1935 impact on interrupt service overhead.
1936
1937 config MIPS_MT_SMTC_IRQAFF
1938 bool "Support IRQ affinity API"
1939 depends on MIPS_MT_SMTC
1940 default n
1941 help
1942 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1943 for SMTC Linux kernel. Requires platform support, of which
1944 an example can be found in the MIPS kernel i8259 and Malta
1945 platform code. Adds some overhead to interrupt dispatch, and
1946 should be used only if you know what you are doing.
1947
1948 config MIPS_VPE_LOADER_TOM
1949 bool "Load VPE program into memory hidden from linux"
1950 depends on MIPS_VPE_LOADER
1951 default y
1952 help
1953 The loader can use memory that is present but has been hidden from
1954 Linux using the kernel command line option "mem=xxMB". It's up to
1955 you to ensure the amount you put in the option and the space your
1956 program requires is less or equal to the amount physically present.
1957
1958 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1959 config MIPS_VPE_APSP_API
1960 bool "Enable support for AP/SP API (RTLX)"
1961 depends on MIPS_VPE_LOADER
1962 help
1963
1964 config MIPS_CMP
1965 bool "MIPS CMP framework support"
1966 depends on SYS_SUPPORTS_MIPS_CMP
1967 select SMP
1968 select SYNC_R4K
1969 select SYS_SUPPORTS_SMP
1970 select SYS_SUPPORTS_SCHED_SMT if SMP
1971 select WEAK_ORDERING
1972 default n
1973 help
1974 This is a placeholder option for the GCMP work. It will need to
1975 be handled differently...
1976
1977 config SB1_PASS_1_WORKAROUNDS
1978 bool
1979 depends on CPU_SB1_PASS_1
1980 default y
1981
1982 config SB1_PASS_2_WORKAROUNDS
1983 bool
1984 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1985 default y
1986
1987 config SB1_PASS_2_1_WORKAROUNDS
1988 bool
1989 depends on CPU_SB1 && CPU_SB1_PASS_2
1990 default y
1991
1992
1993 config 64BIT_PHYS_ADDR
1994 bool
1995
1996 config ARCH_PHYS_ADDR_T_64BIT
1997 def_bool 64BIT_PHYS_ADDR
1998
1999 config CPU_HAS_SMARTMIPS
2000 depends on SYS_SUPPORTS_SMARTMIPS
2001 bool "Support for the SmartMIPS ASE"
2002 help
2003 SmartMIPS is a extension of the MIPS32 architecture aimed at
2004 increased security at both hardware and software level for
2005 smartcards. Enabling this option will allow proper use of the
2006 SmartMIPS instructions by Linux applications. However a kernel with
2007 this option will not work on a MIPS core without SmartMIPS core. If
2008 you don't know you probably don't have SmartMIPS and should say N
2009 here.
2010
2011 config CPU_MICROMIPS
2012 depends on SYS_SUPPORTS_MICROMIPS
2013 bool "Build kernel using microMIPS ISA"
2014 help
2015 When this option is enabled the kernel will be built using the
2016 microMIPS ISA
2017
2018 config CPU_HAS_WB
2019 bool
2020
2021 config XKS01
2022 bool
2023
2024 #
2025 # Vectored interrupt mode is an R2 feature
2026 #
2027 config CPU_MIPSR2_IRQ_VI
2028 bool
2029
2030 #
2031 # Extended interrupt mode is an R2 feature
2032 #
2033 config CPU_MIPSR2_IRQ_EI
2034 bool
2035
2036 config CPU_HAS_SYNC
2037 bool
2038 depends on !CPU_R3000
2039 default y
2040
2041 #
2042 # CPU non-features
2043 #
2044 config CPU_DADDI_WORKAROUNDS
2045 bool
2046
2047 config CPU_R4000_WORKAROUNDS
2048 bool
2049 select CPU_R4400_WORKAROUNDS
2050
2051 config CPU_R4400_WORKAROUNDS
2052 bool
2053
2054 #
2055 # - Highmem only makes sense for the 32-bit kernel.
2056 # - The current highmem code will only work properly on physically indexed
2057 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2058 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2059 # moment we protect the user and offer the highmem option only on machines
2060 # where it's known to be safe. This will not offer highmem on a few systems
2061 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2062 # indexed CPUs but we're playing safe.
2063 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2064 # know they might have memory configurations that could make use of highmem
2065 # support.
2066 #
2067 config HIGHMEM
2068 bool "High Memory Support"
2069 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2070
2071 config CPU_SUPPORTS_HIGHMEM
2072 bool
2073
2074 config SYS_SUPPORTS_HIGHMEM
2075 bool
2076
2077 config SYS_SUPPORTS_SMARTMIPS
2078 bool
2079
2080 config SYS_SUPPORTS_MICROMIPS
2081 bool
2082
2083 config ARCH_FLATMEM_ENABLE
2084 def_bool y
2085 depends on !NUMA && !CPU_LOONGSON2
2086
2087 config ARCH_DISCONTIGMEM_ENABLE
2088 bool
2089 default y if SGI_IP27
2090 help
2091 Say Y to support efficient handling of discontiguous physical memory,
2092 for architectures which are either NUMA (Non-Uniform Memory Access)
2093 or have huge holes in the physical address space for other reasons.
2094 See <file:Documentation/vm/numa> for more.
2095
2096 config ARCH_SPARSEMEM_ENABLE
2097 bool
2098 select SPARSEMEM_STATIC
2099
2100 config NUMA
2101 bool "NUMA Support"
2102 depends on SYS_SUPPORTS_NUMA
2103 help
2104 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2105 Access). This option improves performance on systems with more
2106 than two nodes; on two node systems it is generally better to
2107 leave it disabled; on single node systems disable this option
2108 disabled.
2109
2110 config SYS_SUPPORTS_NUMA
2111 bool
2112
2113 config NODES_SHIFT
2114 int
2115 default "6"
2116 depends on NEED_MULTIPLE_NODES
2117
2118 config HW_PERF_EVENTS
2119 bool "Enable hardware performance counter support for perf events"
2120 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2121 default y
2122 help
2123 Enable hardware performance counter support for perf events. If
2124 disabled, perf events will use software events only.
2125
2126 source "mm/Kconfig"
2127
2128 config SMP
2129 bool "Multi-Processing support"
2130 depends on SYS_SUPPORTS_SMP
2131 help
2132 This enables support for systems with more than one CPU. If you have
2133 a system with only one CPU, say N. If you have a system with more
2134 than one CPU, say Y.
2135
2136 If you say N here, the kernel will run on uni- and multiprocessor
2137 machines, but will use only one CPU of a multiprocessor machine. If
2138 you say Y here, the kernel will run on many, but not all,
2139 uniprocessor machines. On a uniprocessor machine, the kernel
2140 will run faster if you say N here.
2141
2142 People using multiprocessor machines who say Y here should also say
2143 Y to "Enhanced Real Time Clock Support", below.
2144
2145 See also the SMP-HOWTO available at
2146 <http://www.tldp.org/docs.html#howto>.
2147
2148 If you don't know what to do here, say N.
2149
2150 config SMP_UP
2151 bool
2152
2153 config SYS_SUPPORTS_MIPS_CMP
2154 bool
2155
2156 config SYS_SUPPORTS_SMP
2157 bool
2158
2159 config NR_CPUS_DEFAULT_4
2160 bool
2161
2162 config NR_CPUS_DEFAULT_8
2163 bool
2164
2165 config NR_CPUS_DEFAULT_16
2166 bool
2167
2168 config NR_CPUS_DEFAULT_32
2169 bool
2170
2171 config NR_CPUS_DEFAULT_64
2172 bool
2173
2174 config NR_CPUS
2175 int "Maximum number of CPUs (2-64)"
2176 range 2 64
2177 depends on SMP
2178 default "4" if NR_CPUS_DEFAULT_4
2179 default "8" if NR_CPUS_DEFAULT_8
2180 default "16" if NR_CPUS_DEFAULT_16
2181 default "32" if NR_CPUS_DEFAULT_32
2182 default "64" if NR_CPUS_DEFAULT_64
2183 help
2184 This allows you to specify the maximum number of CPUs which this
2185 kernel will support. The maximum supported value is 32 for 32-bit
2186 kernel and 64 for 64-bit kernels; the minimum value which makes
2187 sense is 1 for Qemu (useful only for kernel debugging purposes)
2188 and 2 for all others.
2189
2190 This is purely to save memory - each supported CPU adds
2191 approximately eight kilobytes to the kernel image. For best
2192 performance should round up your number of processors to the next
2193 power of two.
2194
2195 config MIPS_PERF_SHARED_TC_COUNTERS
2196 bool
2197
2198 #
2199 # Timer Interrupt Frequency Configuration
2200 #
2201
2202 choice
2203 prompt "Timer frequency"
2204 default HZ_250
2205 help
2206 Allows the configuration of the timer frequency.
2207
2208 config HZ_48
2209 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2210
2211 config HZ_100
2212 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2213
2214 config HZ_128
2215 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2216
2217 config HZ_250
2218 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2219
2220 config HZ_256
2221 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2222
2223 config HZ_1000
2224 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2225
2226 config HZ_1024
2227 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2228
2229 endchoice
2230
2231 config SYS_SUPPORTS_48HZ
2232 bool
2233
2234 config SYS_SUPPORTS_100HZ
2235 bool
2236
2237 config SYS_SUPPORTS_128HZ
2238 bool
2239
2240 config SYS_SUPPORTS_250HZ
2241 bool
2242
2243 config SYS_SUPPORTS_256HZ
2244 bool
2245
2246 config SYS_SUPPORTS_1000HZ
2247 bool
2248
2249 config SYS_SUPPORTS_1024HZ
2250 bool
2251
2252 config SYS_SUPPORTS_ARBIT_HZ
2253 bool
2254 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2255 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2256 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2257 !SYS_SUPPORTS_1024HZ
2258
2259 config HZ
2260 int
2261 default 48 if HZ_48
2262 default 100 if HZ_100
2263 default 128 if HZ_128
2264 default 250 if HZ_250
2265 default 256 if HZ_256
2266 default 1000 if HZ_1000
2267 default 1024 if HZ_1024
2268
2269 source "kernel/Kconfig.preempt"
2270
2271 config KEXEC
2272 bool "Kexec system call"
2273 help
2274 kexec is a system call that implements the ability to shutdown your
2275 current kernel, and to start another kernel. It is like a reboot
2276 but it is independent of the system firmware. And like a reboot
2277 you can start any kernel with it, not just Linux.
2278
2279 The name comes from the similarity to the exec system call.
2280
2281 It is an ongoing process to be certain the hardware in a machine
2282 is properly shutdown, so do not be surprised if this code does not
2283 initially work for you. As of this writing the exact hardware
2284 interface is strongly in flux, so no good recommendation can be
2285 made.
2286
2287 config CRASH_DUMP
2288 bool "Kernel crash dumps"
2289 help
2290 Generate crash dump after being started by kexec.
2291 This should be normally only set in special crash dump kernels
2292 which are loaded in the main kernel with kexec-tools into
2293 a specially reserved region and then later executed after
2294 a crash by kdump/kexec. The crash dump kernel must be compiled
2295 to a memory address not used by the main kernel or firmware using
2296 PHYSICAL_START.
2297
2298 config PHYSICAL_START
2299 hex "Physical address where the kernel is loaded"
2300 default "0xffffffff84000000" if 64BIT
2301 default "0x84000000" if 32BIT
2302 depends on CRASH_DUMP
2303 help
2304 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2305 If you plan to use kernel for capturing the crash dump change
2306 this value to start of the reserved region (the "X" value as
2307 specified in the "crashkernel=YM@XM" command line boot parameter
2308 passed to the panic-ed kernel).
2309
2310 config SECCOMP
2311 bool "Enable seccomp to safely compute untrusted bytecode"
2312 depends on PROC_FS
2313 default y
2314 help
2315 This kernel feature is useful for number crunching applications
2316 that may need to compute untrusted bytecode during their
2317 execution. By using pipes or other transports made available to
2318 the process as file descriptors supporting the read/write
2319 syscalls, it's possible to isolate those applications in
2320 their own address space using seccomp. Once seccomp is
2321 enabled via /proc/<pid>/seccomp, it cannot be disabled
2322 and the task is only allowed to execute a few safe syscalls
2323 defined by each seccomp mode.
2324
2325 If unsure, say Y. Only embedded should say N here.
2326
2327 config USE_OF
2328 bool
2329 select OF
2330 select OF_EARLY_FLATTREE
2331 select IRQ_DOMAIN
2332
2333 endmenu
2334
2335 config LOCKDEP_SUPPORT
2336 bool
2337 default y
2338
2339 config STACKTRACE_SUPPORT
2340 bool
2341 default y
2342
2343 source "init/Kconfig"
2344
2345 source "kernel/Kconfig.freezer"
2346
2347 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2348
2349 config HW_HAS_EISA
2350 bool
2351 config HW_HAS_PCI
2352 bool
2353
2354 config PCI
2355 bool "Support for PCI controller"
2356 depends on HW_HAS_PCI
2357 select PCI_DOMAINS
2358 select NO_GENERIC_PCI_IOPORT_MAP
2359 help
2360 Find out whether you have a PCI motherboard. PCI is the name of a
2361 bus system, i.e. the way the CPU talks to the other stuff inside
2362 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2363 say Y, otherwise N.
2364
2365 config PCI_DOMAINS
2366 bool
2367
2368 source "drivers/pci/Kconfig"
2369
2370 source "drivers/pci/pcie/Kconfig"
2371
2372 #
2373 # ISA support is now enabled via select. Too many systems still have the one
2374 # or other ISA chip on the board that users don't know about so don't expect
2375 # users to choose the right thing ...
2376 #
2377 config ISA
2378 bool
2379
2380 config EISA
2381 bool "EISA support"
2382 depends on HW_HAS_EISA
2383 select ISA
2384 select GENERIC_ISA_DMA
2385 ---help---
2386 The Extended Industry Standard Architecture (EISA) bus was
2387 developed as an open alternative to the IBM MicroChannel bus.
2388
2389 The EISA bus provided some of the features of the IBM MicroChannel
2390 bus while maintaining backward compatibility with cards made for
2391 the older ISA bus. The EISA bus saw limited use between 1988 and
2392 1995 when it was made obsolete by the PCI bus.
2393
2394 Say Y here if you are building a kernel for an EISA-based machine.
2395
2396 Otherwise, say N.
2397
2398 source "drivers/eisa/Kconfig"
2399
2400 config TC
2401 bool "TURBOchannel support"
2402 depends on MACH_DECSTATION
2403 help
2404 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2405 processors. TURBOchannel programming specifications are available
2406 at:
2407 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2408 and:
2409 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2410 Linux driver support status is documented at:
2411 <http://www.linux-mips.org/wiki/DECstation>
2412
2413 config MMU
2414 bool
2415 default y
2416
2417 config I8253
2418 bool
2419 select CLKSRC_I8253
2420 select CLKEVT_I8253
2421 select MIPS_EXTERNAL_TIMER
2422
2423 config ZONE_DMA
2424 bool
2425
2426 config ZONE_DMA32
2427 bool
2428
2429 source "drivers/pcmcia/Kconfig"
2430
2431 source "drivers/pci/hotplug/Kconfig"
2432
2433 config RAPIDIO
2434 tristate "RapidIO support"
2435 depends on PCI
2436 default n
2437 help
2438 If you say Y here, the kernel will include drivers and
2439 infrastructure code to support RapidIO interconnect devices.
2440
2441 source "drivers/rapidio/Kconfig"
2442
2443 endmenu
2444
2445 menu "Executable file formats"
2446
2447 source "fs/Kconfig.binfmt"
2448
2449 config TRAD_SIGNALS
2450 bool
2451
2452 config MIPS32_COMPAT
2453 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2454 depends on 64BIT
2455 help
2456 Select this option if you want Linux/MIPS 32-bit binary
2457 compatibility. Since all software available for Linux/MIPS is
2458 currently 32-bit you should say Y here.
2459
2460 config COMPAT
2461 bool
2462 depends on MIPS32_COMPAT
2463 select ARCH_WANT_OLD_COMPAT_IPC
2464 default y
2465
2466 config SYSVIPC_COMPAT
2467 bool
2468 depends on COMPAT && SYSVIPC
2469 default y
2470
2471 config MIPS32_O32
2472 bool "Kernel support for o32 binaries"
2473 depends on MIPS32_COMPAT
2474 help
2475 Select this option if you want to run o32 binaries. These are pure
2476 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2477 existing binaries are in this format.
2478
2479 If unsure, say Y.
2480
2481 config MIPS32_N32
2482 bool "Kernel support for n32 binaries"
2483 depends on MIPS32_COMPAT
2484 help
2485 Select this option if you want to run n32 binaries. These are
2486 64-bit binaries using 32-bit quantities for addressing and certain
2487 data that would normally be 64-bit. They are used in special
2488 cases.
2489
2490 If unsure, say N.
2491
2492 config BINFMT_ELF32
2493 bool
2494 default y if MIPS32_O32 || MIPS32_N32
2495
2496 endmenu
2497
2498 menu "Power management options"
2499
2500 config ARCH_HIBERNATION_POSSIBLE
2501 def_bool y
2502 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2503
2504 config ARCH_SUSPEND_POSSIBLE
2505 def_bool y
2506 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2507
2508 source "kernel/power/Kconfig"
2509
2510 endmenu
2511
2512 config MIPS_EXTERNAL_TIMER
2513 bool
2514
2515 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2516 menu "CPU Power Management"
2517 source "drivers/cpufreq/Kconfig"
2518 endmenu
2519 endif
2520
2521 source "net/Kconfig"
2522
2523 source "drivers/Kconfig"
2524
2525 source "drivers/firmware/Kconfig"
2526
2527 source "fs/Kconfig"
2528
2529 source "arch/mips/Kconfig.debug"
2530
2531 source "security/Kconfig"
2532
2533 source "crypto/Kconfig"
2534
2535 source "lib/Kconfig"
2536
2537 source "arch/mips/kvm/Kconfig"
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