Merge tag 'edac_fixes_for_3.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
[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_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KPROBES
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS
33 select HAVE_DMA_API_DEBUG
34 select GENERIC_IRQ_PROBE
35 select GENERIC_IRQ_SHOW
36 select GENERIC_PCI_IOMAP
37 select HAVE_ARCH_JUMP_LABEL
38 select ARCH_WANT_IPC_PARSE_VERSION
39 select IRQ_FORCED_THREADING
40 select HAVE_MEMBLOCK
41 select HAVE_MEMBLOCK_NODE_MAP
42 select ARCH_DISCARD_MEMBLOCK
43 select GENERIC_SMP_IDLE_THREAD
44 select BUILDTIME_EXTABLE_SORT
45 select GENERIC_CLOCKEVENTS
46 select GENERIC_CMOS_UPDATE
47 select HAVE_MOD_ARCH_SPECIFIC
48 select VIRT_TO_BUS
49 select MODULES_USE_ELF_REL if MODULES
50 select MODULES_USE_ELF_RELA if MODULES && 64BIT
51 select CLONE_BACKWARDS
52 select HAVE_DEBUG_STACKOVERFLOW
53 select HAVE_CC_STACKPROTECTOR
54 select CPU_PM if CPU_IDLE
55 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
56
57 menu "Machine selection"
58
59 choice
60 prompt "System type"
61 default SGI_IP22
62
63 config MIPS_ALCHEMY
64 bool "Alchemy processor based machines"
65 select 64BIT_PHYS_ADDR
66 select CEVT_R4K
67 select CSRC_R4K
68 select IRQ_CPU
69 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
70 select SYS_HAS_CPU_MIPS32_R1
71 select SYS_SUPPORTS_32BIT_KERNEL
72 select SYS_SUPPORTS_APM_EMULATION
73 select ARCH_REQUIRE_GPIOLIB
74 select SYS_SUPPORTS_ZBOOT
75 select COMMON_CLK
76
77 config AR7
78 bool "Texas Instruments AR7"
79 select BOOT_ELF32
80 select DMA_NONCOHERENT
81 select CEVT_R4K
82 select CSRC_R4K
83 select IRQ_CPU
84 select NO_EXCEPT_FILL
85 select SWAP_IO_SPACE
86 select SYS_HAS_CPU_MIPS32_R1
87 select SYS_HAS_EARLY_PRINTK
88 select SYS_SUPPORTS_32BIT_KERNEL
89 select SYS_SUPPORTS_LITTLE_ENDIAN
90 select SYS_SUPPORTS_MIPS16
91 select SYS_SUPPORTS_ZBOOT_UART16550
92 select ARCH_REQUIRE_GPIOLIB
93 select VLYNQ
94 select HAVE_CLK
95 help
96 Support for the Texas Instruments AR7 System-on-a-Chip
97 family: TNETD7100, 7200 and 7300.
98
99 config ATH79
100 bool "Atheros AR71XX/AR724X/AR913X based boards"
101 select ARCH_REQUIRE_GPIOLIB
102 select BOOT_RAW
103 select CEVT_R4K
104 select CSRC_R4K
105 select DMA_NONCOHERENT
106 select HAVE_CLK
107 select CLKDEV_LOOKUP
108 select IRQ_CPU
109 select MIPS_MACHINE
110 select SYS_HAS_CPU_MIPS32_R2
111 select SYS_HAS_EARLY_PRINTK
112 select SYS_SUPPORTS_32BIT_KERNEL
113 select SYS_SUPPORTS_BIG_ENDIAN
114 select SYS_SUPPORTS_MIPS16
115 help
116 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
117
118 config BCM47XX
119 bool "Broadcom BCM47XX based boards"
120 select ARCH_WANT_OPTIONAL_GPIOLIB
121 select BOOT_RAW
122 select CEVT_R4K
123 select CSRC_R4K
124 select DMA_NONCOHERENT
125 select HW_HAS_PCI
126 select IRQ_CPU
127 select SYS_HAS_CPU_MIPS32_R1
128 select NO_EXCEPT_FILL
129 select SYS_SUPPORTS_32BIT_KERNEL
130 select SYS_SUPPORTS_LITTLE_ENDIAN
131 select SYS_SUPPORTS_MIPS16
132 select SYS_HAS_EARLY_PRINTK
133 select USE_GENERIC_EARLY_PRINTK_8250
134 select GPIOLIB
135 select LEDS_GPIO_REGISTER
136 help
137 Support for BCM47XX based boards
138
139 config BCM63XX
140 bool "Broadcom BCM63XX based boards"
141 select BOOT_RAW
142 select CEVT_R4K
143 select CSRC_R4K
144 select SYNC_R4K
145 select DMA_NONCOHERENT
146 select IRQ_CPU
147 select SYS_SUPPORTS_32BIT_KERNEL
148 select SYS_SUPPORTS_BIG_ENDIAN
149 select SYS_HAS_EARLY_PRINTK
150 select SWAP_IO_SPACE
151 select ARCH_REQUIRE_GPIOLIB
152 select HAVE_CLK
153 select MIPS_L1_CACHE_SHIFT_4
154 help
155 Support for BCM63XX based boards
156
157 config MIPS_COBALT
158 bool "Cobalt Server"
159 select CEVT_R4K
160 select CSRC_R4K
161 select CEVT_GT641XX
162 select DMA_NONCOHERENT
163 select HW_HAS_PCI
164 select I8253
165 select I8259
166 select IRQ_CPU
167 select IRQ_GT641XX
168 select PCI_GT64XXX_PCI0
169 select PCI
170 select SYS_HAS_CPU_NEVADA
171 select SYS_HAS_EARLY_PRINTK
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select USE_GENERIC_EARLY_PRINTK_8250
176
177 config MACH_DECSTATION
178 bool "DECstations"
179 select BOOT_ELF32
180 select CEVT_DS1287
181 select CEVT_R4K if CPU_R4X00
182 select CSRC_IOASIC
183 select CSRC_R4K if CPU_R4X00
184 select CPU_DADDI_WORKAROUNDS if 64BIT
185 select CPU_R4000_WORKAROUNDS if 64BIT
186 select CPU_R4400_WORKAROUNDS if 64BIT
187 select DMA_NONCOHERENT
188 select NO_IOPORT_MAP
189 select IRQ_CPU
190 select SYS_HAS_CPU_R3000
191 select SYS_HAS_CPU_R4X00
192 select SYS_SUPPORTS_32BIT_KERNEL
193 select SYS_SUPPORTS_64BIT_KERNEL
194 select SYS_SUPPORTS_LITTLE_ENDIAN
195 select SYS_SUPPORTS_128HZ
196 select SYS_SUPPORTS_256HZ
197 select SYS_SUPPORTS_1024HZ
198 select MIPS_L1_CACHE_SHIFT_4
199 help
200 This enables support for DEC's MIPS based workstations. For details
201 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
202 DECstation porting pages on <http://decstation.unix-ag.org/>.
203
204 If you have one of the following DECstation Models you definitely
205 want to choose R4xx0 for the CPU Type:
206
207 DECstation 5000/50
208 DECstation 5000/150
209 DECstation 5000/260
210 DECsystem 5900/260
211
212 otherwise choose R3000.
213
214 config MACH_JAZZ
215 bool "Jazz family of machines"
216 select FW_ARC
217 select FW_ARC32
218 select ARCH_MAY_HAVE_PC_FDC
219 select CEVT_R4K
220 select CSRC_R4K
221 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
222 select GENERIC_ISA_DMA
223 select HAVE_PCSPKR_PLATFORM
224 select IRQ_CPU
225 select I8253
226 select I8259
227 select ISA
228 select SYS_HAS_CPU_R4X00
229 select SYS_SUPPORTS_32BIT_KERNEL
230 select SYS_SUPPORTS_64BIT_KERNEL
231 select SYS_SUPPORTS_100HZ
232 help
233 This a family of machines based on the MIPS R4030 chipset which was
234 used by several vendors to build RISC/os and Windows NT workstations.
235 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
236 Olivetti M700-10 workstations.
237
238 config MACH_JZ4740
239 bool "Ingenic JZ4740 based machines"
240 select SYS_HAS_CPU_MIPS32_R1
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_LITTLE_ENDIAN
243 select SYS_SUPPORTS_ZBOOT_UART16550
244 select DMA_NONCOHERENT
245 select IRQ_CPU
246 select ARCH_REQUIRE_GPIOLIB
247 select SYS_HAS_EARLY_PRINTK
248 select HAVE_CLK
249 select GENERIC_IRQ_CHIP
250
251 config LANTIQ
252 bool "Lantiq based platforms"
253 select DMA_NONCOHERENT
254 select IRQ_CPU
255 select CEVT_R4K
256 select CSRC_R4K
257 select SYS_HAS_CPU_MIPS32_R1
258 select SYS_HAS_CPU_MIPS32_R2
259 select SYS_SUPPORTS_BIG_ENDIAN
260 select SYS_SUPPORTS_32BIT_KERNEL
261 select SYS_SUPPORTS_MIPS16
262 select SYS_SUPPORTS_MULTITHREADING
263 select SYS_HAS_EARLY_PRINTK
264 select ARCH_REQUIRE_GPIOLIB
265 select SWAP_IO_SPACE
266 select BOOT_RAW
267 select HAVE_MACH_CLKDEV
268 select CLKDEV_LOOKUP
269 select USE_OF
270 select PINCTRL
271 select PINCTRL_LANTIQ
272
273 config LASAT
274 bool "LASAT Networks platforms"
275 select CEVT_R4K
276 select CRC32
277 select CSRC_R4K
278 select DMA_NONCOHERENT
279 select SYS_HAS_EARLY_PRINTK
280 select HW_HAS_PCI
281 select IRQ_CPU
282 select PCI_GT64XXX_PCI0
283 select MIPS_NILE4
284 select R5000_CPU_SCACHE
285 select SYS_HAS_CPU_R5000
286 select SYS_SUPPORTS_32BIT_KERNEL
287 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
288 select SYS_SUPPORTS_LITTLE_ENDIAN
289
290 config MACH_LOONGSON
291 bool "Loongson family of machines"
292 select SYS_SUPPORTS_ZBOOT
293 help
294 This enables the support of Loongson family of machines.
295
296 Loongson is a family of general-purpose MIPS-compatible CPUs.
297 developed at Institute of Computing Technology (ICT),
298 Chinese Academy of Sciences (CAS) in the People's Republic
299 of China. The chief architect is Professor Weiwu Hu.
300
301 config MACH_LOONGSON1
302 bool "Loongson 1 family of machines"
303 select SYS_SUPPORTS_ZBOOT
304 help
305 This enables support for the Loongson 1 based machines.
306
307 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
308 the ICT (Institute of Computing Technology) and the Chinese Academy
309 of Sciences.
310
311 config MIPS_MALTA
312 bool "MIPS Malta board"
313 select ARCH_MAY_HAVE_PC_FDC
314 select BOOT_ELF32
315 select BOOT_RAW
316 select CEVT_R4K
317 select CSRC_R4K
318 select CSRC_GIC
319 select DMA_MAYBE_COHERENT
320 select GENERIC_ISA_DMA
321 select HAVE_PCSPKR_PLATFORM
322 select IRQ_CPU
323 select IRQ_GIC
324 select HW_HAS_PCI
325 select I8253
326 select I8259
327 select MIPS_BONITO64
328 select MIPS_CPU_SCACHE
329 select PCI_GT64XXX_PCI0
330 select MIPS_MSC
331 select SWAP_IO_SPACE
332 select SYS_HAS_CPU_MIPS32_R1
333 select SYS_HAS_CPU_MIPS32_R2
334 select SYS_HAS_CPU_MIPS32_R3_5
335 select SYS_HAS_CPU_MIPS64_R1
336 select SYS_HAS_CPU_MIPS64_R2
337 select SYS_HAS_CPU_NEVADA
338 select SYS_HAS_CPU_RM7000
339 select SYS_SUPPORTS_32BIT_KERNEL
340 select SYS_SUPPORTS_64BIT_KERNEL
341 select SYS_SUPPORTS_BIG_ENDIAN
342 select SYS_SUPPORTS_LITTLE_ENDIAN
343 select SYS_SUPPORTS_MIPS_CMP
344 select SYS_SUPPORTS_MIPS_CPS
345 select SYS_SUPPORTS_MIPS16
346 select SYS_SUPPORTS_MULTITHREADING
347 select SYS_SUPPORTS_SMARTMIPS
348 select SYS_SUPPORTS_ZBOOT
349 help
350 This enables support for the MIPS Technologies Malta evaluation
351 board.
352
353 config MIPS_SEAD3
354 bool "MIPS SEAD3 board"
355 select BOOT_ELF32
356 select BOOT_RAW
357 select BUILTIN_DTB
358 select CEVT_R4K
359 select CSRC_R4K
360 select CSRC_GIC
361 select CPU_MIPSR2_IRQ_VI
362 select CPU_MIPSR2_IRQ_EI
363 select DMA_NONCOHERENT
364 select IRQ_CPU
365 select IRQ_GIC
366 select LIBFDT
367 select MIPS_MSC
368 select SYS_HAS_CPU_MIPS32_R1
369 select SYS_HAS_CPU_MIPS32_R2
370 select SYS_HAS_CPU_MIPS64_R1
371 select SYS_HAS_EARLY_PRINTK
372 select SYS_SUPPORTS_32BIT_KERNEL
373 select SYS_SUPPORTS_64BIT_KERNEL
374 select SYS_SUPPORTS_BIG_ENDIAN
375 select SYS_SUPPORTS_LITTLE_ENDIAN
376 select SYS_SUPPORTS_SMARTMIPS
377 select SYS_SUPPORTS_MICROMIPS
378 select SYS_SUPPORTS_MIPS16
379 select USB_EHCI_BIG_ENDIAN_DESC
380 select USB_EHCI_BIG_ENDIAN_MMIO
381 select USE_OF
382 help
383 This enables support for the MIPS Technologies SEAD3 evaluation
384 board.
385
386 config NEC_MARKEINS
387 bool "NEC EMMA2RH Mark-eins board"
388 select SOC_EMMA2RH
389 select HW_HAS_PCI
390 help
391 This enables support for the NEC Electronics Mark-eins boards.
392
393 config MACH_VR41XX
394 bool "NEC VR4100 series based machines"
395 select CEVT_R4K
396 select CSRC_R4K
397 select SYS_HAS_CPU_VR41XX
398 select SYS_SUPPORTS_MIPS16
399 select ARCH_REQUIRE_GPIOLIB
400
401 config NXP_STB220
402 bool "NXP STB220 board"
403 select SOC_PNX833X
404 help
405 Support for NXP Semiconductors STB220 Development Board.
406
407 config NXP_STB225
408 bool "NXP 225 board"
409 select SOC_PNX833X
410 select SOC_PNX8335
411 help
412 Support for NXP Semiconductors STB225 Development Board.
413
414 config PMC_MSP
415 bool "PMC-Sierra MSP chipsets"
416 select CEVT_R4K
417 select CSRC_R4K
418 select DMA_NONCOHERENT
419 select SWAP_IO_SPACE
420 select NO_EXCEPT_FILL
421 select BOOT_RAW
422 select SYS_HAS_CPU_MIPS32_R1
423 select SYS_HAS_CPU_MIPS32_R2
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_BIG_ENDIAN
426 select SYS_SUPPORTS_MIPS16
427 select IRQ_CPU
428 select SERIAL_8250
429 select SERIAL_8250_CONSOLE
430 select USB_EHCI_BIG_ENDIAN_MMIO
431 select USB_EHCI_BIG_ENDIAN_DESC
432 help
433 This adds support for the PMC-Sierra family of Multi-Service
434 Processor System-On-A-Chips. These parts include a number
435 of integrated peripherals, interfaces and DSPs in addition to
436 a variety of MIPS cores.
437
438 config RALINK
439 bool "Ralink based machines"
440 select CEVT_R4K
441 select CSRC_R4K
442 select BOOT_RAW
443 select DMA_NONCOHERENT
444 select IRQ_CPU
445 select USE_OF
446 select SYS_HAS_CPU_MIPS32_R1
447 select SYS_HAS_CPU_MIPS32_R2
448 select SYS_SUPPORTS_32BIT_KERNEL
449 select SYS_SUPPORTS_LITTLE_ENDIAN
450 select SYS_SUPPORTS_MIPS16
451 select SYS_HAS_EARLY_PRINTK
452 select HAVE_MACH_CLKDEV
453 select CLKDEV_LOOKUP
454 select ARCH_HAS_RESET_CONTROLLER
455 select RESET_CONTROLLER
456
457 config SGI_IP22
458 bool "SGI IP22 (Indy/Indigo2)"
459 select FW_ARC
460 select FW_ARC32
461 select BOOT_ELF32
462 select CEVT_R4K
463 select CSRC_R4K
464 select DEFAULT_SGI_PARTITION
465 select DMA_NONCOHERENT
466 select HW_HAS_EISA
467 select I8253
468 select I8259
469 select IP22_CPU_SCACHE
470 select IRQ_CPU
471 select GENERIC_ISA_DMA_SUPPORT_BROKEN
472 select SGI_HAS_I8042
473 select SGI_HAS_INDYDOG
474 select SGI_HAS_HAL2
475 select SGI_HAS_SEEQ
476 select SGI_HAS_WD93
477 select SGI_HAS_ZILOG
478 select SWAP_IO_SPACE
479 select SYS_HAS_CPU_R4X00
480 select SYS_HAS_CPU_R5000
481 #
482 # Disable EARLY_PRINTK for now since it leads to overwritten prom
483 # memory during early boot on some machines.
484 #
485 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
486 # for a more details discussion
487 #
488 # select SYS_HAS_EARLY_PRINTK
489 select SYS_SUPPORTS_32BIT_KERNEL
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select MIPS_L1_CACHE_SHIFT_7
493 help
494 This are the SGI Indy, Challenge S and Indigo2, as well as certain
495 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
496 that runs on these, say Y here.
497
498 config SGI_IP27
499 bool "SGI IP27 (Origin200/2000)"
500 select FW_ARC
501 select FW_ARC64
502 select BOOT_ELF64
503 select DEFAULT_SGI_PARTITION
504 select DMA_COHERENT
505 select SYS_HAS_EARLY_PRINTK
506 select HW_HAS_PCI
507 select NR_CPUS_DEFAULT_64
508 select SYS_HAS_CPU_R10000
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 select SYS_SUPPORTS_NUMA
512 select SYS_SUPPORTS_SMP
513 select MIPS_L1_CACHE_SHIFT_7
514 help
515 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
516 workstations. To compile a Linux kernel that runs on these, say Y
517 here.
518
519 config SGI_IP28
520 bool "SGI IP28 (Indigo2 R10k)"
521 select FW_ARC
522 select FW_ARC64
523 select BOOT_ELF64
524 select CEVT_R4K
525 select CSRC_R4K
526 select DEFAULT_SGI_PARTITION
527 select DMA_NONCOHERENT
528 select GENERIC_ISA_DMA_SUPPORT_BROKEN
529 select IRQ_CPU
530 select HW_HAS_EISA
531 select I8253
532 select I8259
533 select SGI_HAS_I8042
534 select SGI_HAS_INDYDOG
535 select SGI_HAS_HAL2
536 select SGI_HAS_SEEQ
537 select SGI_HAS_WD93
538 select SGI_HAS_ZILOG
539 select SWAP_IO_SPACE
540 select SYS_HAS_CPU_R10000
541 #
542 # Disable EARLY_PRINTK for now since it leads to overwritten prom
543 # memory during early boot on some machines.
544 #
545 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
546 # for a more details discussion
547 #
548 # select SYS_HAS_EARLY_PRINTK
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_BIG_ENDIAN
551 select MIPS_L1_CACHE_SHIFT_7
552 help
553 This is the SGI Indigo2 with R10000 processor. To compile a Linux
554 kernel that runs on these, say Y here.
555
556 config SGI_IP32
557 bool "SGI IP32 (O2)"
558 select FW_ARC
559 select FW_ARC32
560 select BOOT_ELF32
561 select CEVT_R4K
562 select CSRC_R4K
563 select DMA_NONCOHERENT
564 select HW_HAS_PCI
565 select IRQ_CPU
566 select R5000_CPU_SCACHE
567 select RM7000_CPU_SCACHE
568 select SYS_HAS_CPU_R5000
569 select SYS_HAS_CPU_R10000 if BROKEN
570 select SYS_HAS_CPU_RM7000
571 select SYS_HAS_CPU_NEVADA
572 select SYS_SUPPORTS_64BIT_KERNEL
573 select SYS_SUPPORTS_BIG_ENDIAN
574 help
575 If you want this kernel to run on SGI O2 workstation, say Y here.
576
577 config SIBYTE_CRHINE
578 bool "Sibyte BCM91120C-CRhine"
579 select BOOT_ELF32
580 select DMA_COHERENT
581 select SIBYTE_BCM1120
582 select SWAP_IO_SPACE
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_LITTLE_ENDIAN
586
587 config SIBYTE_CARMEL
588 bool "Sibyte BCM91120x-Carmel"
589 select BOOT_ELF32
590 select DMA_COHERENT
591 select SIBYTE_BCM1120
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_CRHONE
598 bool "Sibyte BCM91125C-CRhone"
599 select BOOT_ELF32
600 select DMA_COHERENT
601 select SIBYTE_BCM1125
602 select SWAP_IO_SPACE
603 select SYS_HAS_CPU_SB1
604 select SYS_SUPPORTS_BIG_ENDIAN
605 select SYS_SUPPORTS_HIGHMEM
606 select SYS_SUPPORTS_LITTLE_ENDIAN
607
608 config SIBYTE_RHONE
609 bool "Sibyte BCM91125E-Rhone"
610 select BOOT_ELF32
611 select DMA_COHERENT
612 select SIBYTE_BCM1125H
613 select SWAP_IO_SPACE
614 select SYS_HAS_CPU_SB1
615 select SYS_SUPPORTS_BIG_ENDIAN
616 select SYS_SUPPORTS_LITTLE_ENDIAN
617
618 config SIBYTE_SWARM
619 bool "Sibyte BCM91250A-SWARM"
620 select BOOT_ELF32
621 select DMA_COHERENT
622 select HAVE_PATA_PLATFORM
623 select SIBYTE_SB1250
624 select SWAP_IO_SPACE
625 select SYS_HAS_CPU_SB1
626 select SYS_SUPPORTS_BIG_ENDIAN
627 select SYS_SUPPORTS_HIGHMEM
628 select SYS_SUPPORTS_LITTLE_ENDIAN
629 select ZONE_DMA32 if 64BIT
630
631 config SIBYTE_LITTLESUR
632 bool "Sibyte BCM91250C2-LittleSur"
633 select BOOT_ELF32
634 select DMA_COHERENT
635 select HAVE_PATA_PLATFORM
636 select SIBYTE_SB1250
637 select SWAP_IO_SPACE
638 select SYS_HAS_CPU_SB1
639 select SYS_SUPPORTS_BIG_ENDIAN
640 select SYS_SUPPORTS_HIGHMEM
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642
643 config SIBYTE_SENTOSA
644 bool "Sibyte BCM91250E-Sentosa"
645 select BOOT_ELF32
646 select DMA_COHERENT
647 select SIBYTE_SB1250
648 select SWAP_IO_SPACE
649 select SYS_HAS_CPU_SB1
650 select SYS_SUPPORTS_BIG_ENDIAN
651 select SYS_SUPPORTS_LITTLE_ENDIAN
652
653 config SIBYTE_BIGSUR
654 bool "Sibyte BCM91480B-BigSur"
655 select BOOT_ELF32
656 select DMA_COHERENT
657 select NR_CPUS_DEFAULT_4
658 select SIBYTE_BCM1x80
659 select SWAP_IO_SPACE
660 select SYS_HAS_CPU_SB1
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select SYS_SUPPORTS_HIGHMEM
663 select SYS_SUPPORTS_LITTLE_ENDIAN
664 select ZONE_DMA32 if 64BIT
665
666 config SNI_RM
667 bool "SNI RM200/300/400"
668 select FW_ARC if CPU_LITTLE_ENDIAN
669 select FW_ARC32 if CPU_LITTLE_ENDIAN
670 select FW_SNIPROM if CPU_BIG_ENDIAN
671 select ARCH_MAY_HAVE_PC_FDC
672 select BOOT_ELF32
673 select CEVT_R4K
674 select CSRC_R4K
675 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
676 select DMA_NONCOHERENT
677 select GENERIC_ISA_DMA
678 select HAVE_PCSPKR_PLATFORM
679 select HW_HAS_EISA
680 select HW_HAS_PCI
681 select IRQ_CPU
682 select I8253
683 select I8259
684 select ISA
685 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
686 select SYS_HAS_CPU_R4X00
687 select SYS_HAS_CPU_R5000
688 select SYS_HAS_CPU_R10000
689 select R5000_CPU_SCACHE
690 select SYS_HAS_EARLY_PRINTK
691 select SYS_SUPPORTS_32BIT_KERNEL
692 select SYS_SUPPORTS_64BIT_KERNEL
693 select SYS_SUPPORTS_BIG_ENDIAN
694 select SYS_SUPPORTS_HIGHMEM
695 select SYS_SUPPORTS_LITTLE_ENDIAN
696 help
697 The SNI RM200/300/400 are MIPS-based machines manufactured by
698 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
699 Technology and now in turn merged with Fujitsu. Say Y here to
700 support this machine type.
701
702 config MACH_TX39XX
703 bool "Toshiba TX39 series based machines"
704
705 config MACH_TX49XX
706 bool "Toshiba TX49 series based machines"
707
708 config MIKROTIK_RB532
709 bool "Mikrotik RB532 boards"
710 select CEVT_R4K
711 select CSRC_R4K
712 select DMA_NONCOHERENT
713 select HW_HAS_PCI
714 select IRQ_CPU
715 select SYS_HAS_CPU_MIPS32_R1
716 select SYS_SUPPORTS_32BIT_KERNEL
717 select SYS_SUPPORTS_LITTLE_ENDIAN
718 select SWAP_IO_SPACE
719 select BOOT_RAW
720 select ARCH_REQUIRE_GPIOLIB
721 select MIPS_L1_CACHE_SHIFT_4
722 help
723 Support the Mikrotik(tm) RouterBoard 532 series,
724 based on the IDT RC32434 SoC.
725
726 config CAVIUM_OCTEON_SOC
727 bool "Cavium Networks Octeon SoC based boards"
728 select CEVT_R4K
729 select 64BIT_PHYS_ADDR
730 select DMA_COHERENT
731 select SYS_SUPPORTS_64BIT_KERNEL
732 select SYS_SUPPORTS_BIG_ENDIAN
733 select EDAC_SUPPORT
734 select SYS_SUPPORTS_HOTPLUG_CPU
735 select SYS_HAS_EARLY_PRINTK
736 select SYS_HAS_CPU_CAVIUM_OCTEON
737 select SWAP_IO_SPACE
738 select HW_HAS_PCI
739 select ZONE_DMA32
740 select HOLES_IN_ZONE
741 select ARCH_REQUIRE_GPIOLIB
742 select LIBFDT
743 select USE_OF
744 select ARCH_SPARSEMEM_ENABLE
745 select SYS_SUPPORTS_SMP
746 select NR_CPUS_DEFAULT_16
747 select BUILTIN_DTB
748 help
749 This option supports all of the Octeon reference boards from Cavium
750 Networks. It builds a kernel that dynamically determines the Octeon
751 CPU type and supports all known board reference implementations.
752 Some of the supported boards are:
753 EBT3000
754 EBH3000
755 EBH3100
756 Thunder
757 Kodama
758 Hikari
759 Say Y here for most Octeon reference boards.
760
761 config NLM_XLR_BOARD
762 bool "Netlogic XLR/XLS based systems"
763 select BOOT_ELF32
764 select NLM_COMMON
765 select SYS_HAS_CPU_XLR
766 select SYS_SUPPORTS_SMP
767 select HW_HAS_PCI
768 select SWAP_IO_SPACE
769 select SYS_SUPPORTS_32BIT_KERNEL
770 select SYS_SUPPORTS_64BIT_KERNEL
771 select 64BIT_PHYS_ADDR
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select SYS_SUPPORTS_HIGHMEM
774 select DMA_COHERENT
775 select NR_CPUS_DEFAULT_32
776 select CEVT_R4K
777 select CSRC_R4K
778 select IRQ_CPU
779 select ZONE_DMA32 if 64BIT
780 select SYNC_R4K
781 select SYS_HAS_EARLY_PRINTK
782 select SYS_SUPPORTS_ZBOOT
783 select SYS_SUPPORTS_ZBOOT_UART16550
784 help
785 Support for systems based on Netlogic XLR and XLS processors.
786 Say Y here if you have a XLR or XLS based board.
787
788 config NLM_XLP_BOARD
789 bool "Netlogic XLP based systems"
790 select BOOT_ELF32
791 select NLM_COMMON
792 select SYS_HAS_CPU_XLP
793 select SYS_SUPPORTS_SMP
794 select HW_HAS_PCI
795 select SYS_SUPPORTS_32BIT_KERNEL
796 select SYS_SUPPORTS_64BIT_KERNEL
797 select 64BIT_PHYS_ADDR
798 select SYS_SUPPORTS_BIG_ENDIAN
799 select SYS_SUPPORTS_LITTLE_ENDIAN
800 select SYS_SUPPORTS_HIGHMEM
801 select DMA_COHERENT
802 select NR_CPUS_DEFAULT_32
803 select CEVT_R4K
804 select CSRC_R4K
805 select IRQ_CPU
806 select ZONE_DMA32 if 64BIT
807 select SYNC_R4K
808 select SYS_HAS_EARLY_PRINTK
809 select USE_OF
810 select SYS_SUPPORTS_ZBOOT
811 select SYS_SUPPORTS_ZBOOT_UART16550
812 help
813 This board is based on Netlogic XLP Processor.
814 Say Y here if you have a XLP based board.
815
816 config MIPS_PARAVIRT
817 bool "Para-Virtualized guest system"
818 select CEVT_R4K
819 select CSRC_R4K
820 select DMA_COHERENT
821 select SYS_SUPPORTS_64BIT_KERNEL
822 select SYS_SUPPORTS_32BIT_KERNEL
823 select SYS_SUPPORTS_BIG_ENDIAN
824 select SYS_SUPPORTS_SMP
825 select NR_CPUS_DEFAULT_4
826 select SYS_HAS_EARLY_PRINTK
827 select SYS_HAS_CPU_MIPS32_R2
828 select SYS_HAS_CPU_MIPS64_R2
829 select SYS_HAS_CPU_CAVIUM_OCTEON
830 select HW_HAS_PCI
831 select SWAP_IO_SPACE
832 help
833 This option supports guest running under ????
834
835 endchoice
836
837 source "arch/mips/alchemy/Kconfig"
838 source "arch/mips/ath79/Kconfig"
839 source "arch/mips/bcm47xx/Kconfig"
840 source "arch/mips/bcm63xx/Kconfig"
841 source "arch/mips/jazz/Kconfig"
842 source "arch/mips/jz4740/Kconfig"
843 source "arch/mips/lantiq/Kconfig"
844 source "arch/mips/lasat/Kconfig"
845 source "arch/mips/pmcs-msp71xx/Kconfig"
846 source "arch/mips/ralink/Kconfig"
847 source "arch/mips/sgi-ip27/Kconfig"
848 source "arch/mips/sibyte/Kconfig"
849 source "arch/mips/txx9/Kconfig"
850 source "arch/mips/vr41xx/Kconfig"
851 source "arch/mips/cavium-octeon/Kconfig"
852 source "arch/mips/loongson/Kconfig"
853 source "arch/mips/loongson1/Kconfig"
854 source "arch/mips/netlogic/Kconfig"
855 source "arch/mips/paravirt/Kconfig"
856
857 endmenu
858
859 config RWSEM_GENERIC_SPINLOCK
860 bool
861 default y
862
863 config RWSEM_XCHGADD_ALGORITHM
864 bool
865
866 config ARCH_HAS_ILOG2_U32
867 bool
868 default n
869
870 config ARCH_HAS_ILOG2_U64
871 bool
872 default n
873
874 config GENERIC_HWEIGHT
875 bool
876 default y
877
878 config GENERIC_CALIBRATE_DELAY
879 bool
880 default y
881
882 config SCHED_OMIT_FRAME_POINTER
883 bool
884 default y
885
886 #
887 # Select some configuration options automatically based on user selections.
888 #
889 config FW_ARC
890 bool
891
892 config ARCH_MAY_HAVE_PC_FDC
893 bool
894
895 config BOOT_RAW
896 bool
897
898 config CEVT_BCM1480
899 bool
900
901 config CEVT_DS1287
902 bool
903
904 config CEVT_GT641XX
905 bool
906
907 config CEVT_R4K
908 bool
909
910 config CEVT_GIC
911 select MIPS_CM
912 bool
913
914 config CEVT_SB1250
915 bool
916
917 config CEVT_TXX9
918 bool
919
920 config CSRC_BCM1480
921 bool
922
923 config CSRC_IOASIC
924 bool
925
926 config CSRC_R4K
927 bool
928
929 config CSRC_GIC
930 select MIPS_CM
931 bool
932
933 config CSRC_SB1250
934 bool
935
936 config GPIO_TXX9
937 select ARCH_REQUIRE_GPIOLIB
938 bool
939
940 config FW_CFE
941 bool
942
943 config ARCH_DMA_ADDR_T_64BIT
944 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
945
946 config DMA_MAYBE_COHERENT
947 select DMA_NONCOHERENT
948 bool
949
950 config DMA_COHERENT
951 bool
952
953 config DMA_NONCOHERENT
954 bool
955 select NEED_DMA_MAP_STATE
956
957 config NEED_DMA_MAP_STATE
958 bool
959
960 config SYS_HAS_EARLY_PRINTK
961 bool
962
963 config HOTPLUG_CPU
964 bool "Support for hot-pluggable CPUs"
965 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
966 help
967 Say Y here to allow turning CPUs off and on. CPUs can be
968 controlled through /sys/devices/system/cpu.
969 (Note: power management support will enable this option
970 automatically on SMP systems. )
971 Say N if you want to disable CPU hotplug.
972
973 config SYS_SUPPORTS_HOTPLUG_CPU
974 bool
975
976 config I8259
977 bool
978
979 config MIPS_BONITO64
980 bool
981
982 config MIPS_MSC
983 bool
984
985 config MIPS_NILE4
986 bool
987
988 config SYNC_R4K
989 bool
990
991 config MIPS_MACHINE
992 def_bool n
993
994 config NO_IOPORT_MAP
995 def_bool n
996
997 config GENERIC_ISA_DMA
998 bool
999 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1000 select ISA_DMA_API
1001
1002 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1003 bool
1004 select GENERIC_ISA_DMA
1005
1006 config ISA_DMA_API
1007 bool
1008
1009 config HOLES_IN_ZONE
1010 bool
1011
1012 #
1013 # Endianness selection. Sufficiently obscure so many users don't know what to
1014 # answer,so we try hard to limit the available choices. Also the use of a
1015 # choice statement should be more obvious to the user.
1016 #
1017 choice
1018 prompt "Endianness selection"
1019 help
1020 Some MIPS machines can be configured for either little or big endian
1021 byte order. These modes require different kernels and a different
1022 Linux distribution. In general there is one preferred byteorder for a
1023 particular system but some systems are just as commonly used in the
1024 one or the other endianness.
1025
1026 config CPU_BIG_ENDIAN
1027 bool "Big endian"
1028 depends on SYS_SUPPORTS_BIG_ENDIAN
1029
1030 config CPU_LITTLE_ENDIAN
1031 bool "Little endian"
1032 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1033
1034 endchoice
1035
1036 config EXPORT_UASM
1037 bool
1038
1039 config SYS_SUPPORTS_APM_EMULATION
1040 bool
1041
1042 config SYS_SUPPORTS_BIG_ENDIAN
1043 bool
1044
1045 config SYS_SUPPORTS_LITTLE_ENDIAN
1046 bool
1047
1048 config SYS_SUPPORTS_HUGETLBFS
1049 bool
1050 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1051 default y
1052
1053 config MIPS_HUGE_TLB_SUPPORT
1054 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1055
1056 config IRQ_CPU
1057 bool
1058
1059 config IRQ_CPU_RM7K
1060 bool
1061
1062 config IRQ_MSP_SLP
1063 bool
1064
1065 config IRQ_MSP_CIC
1066 bool
1067
1068 config IRQ_TXX9
1069 bool
1070
1071 config IRQ_GT641XX
1072 bool
1073
1074 config IRQ_GIC
1075 select MIPS_CM
1076 bool
1077
1078 config PCI_GT64XXX_PCI0
1079 bool
1080
1081 config NO_EXCEPT_FILL
1082 bool
1083
1084 config SOC_EMMA2RH
1085 bool
1086 select CEVT_R4K
1087 select CSRC_R4K
1088 select DMA_NONCOHERENT
1089 select IRQ_CPU
1090 select SWAP_IO_SPACE
1091 select SYS_HAS_CPU_R5500
1092 select SYS_SUPPORTS_32BIT_KERNEL
1093 select SYS_SUPPORTS_64BIT_KERNEL
1094 select SYS_SUPPORTS_BIG_ENDIAN
1095
1096 config SOC_PNX833X
1097 bool
1098 select CEVT_R4K
1099 select CSRC_R4K
1100 select IRQ_CPU
1101 select DMA_NONCOHERENT
1102 select SYS_HAS_CPU_MIPS32_R2
1103 select SYS_SUPPORTS_32BIT_KERNEL
1104 select SYS_SUPPORTS_LITTLE_ENDIAN
1105 select SYS_SUPPORTS_BIG_ENDIAN
1106 select SYS_SUPPORTS_MIPS16
1107 select CPU_MIPSR2_IRQ_VI
1108
1109 config SOC_PNX8335
1110 bool
1111 select SOC_PNX833X
1112
1113 config SWAP_IO_SPACE
1114 bool
1115
1116 config SGI_HAS_INDYDOG
1117 bool
1118
1119 config SGI_HAS_HAL2
1120 bool
1121
1122 config SGI_HAS_SEEQ
1123 bool
1124
1125 config SGI_HAS_WD93
1126 bool
1127
1128 config SGI_HAS_ZILOG
1129 bool
1130
1131 config SGI_HAS_I8042
1132 bool
1133
1134 config DEFAULT_SGI_PARTITION
1135 bool
1136
1137 config FW_ARC32
1138 bool
1139
1140 config FW_SNIPROM
1141 bool
1142
1143 config BOOT_ELF32
1144 bool
1145
1146 config MIPS_L1_CACHE_SHIFT_4
1147 bool
1148
1149 config MIPS_L1_CACHE_SHIFT_5
1150 bool
1151
1152 config MIPS_L1_CACHE_SHIFT_6
1153 bool
1154
1155 config MIPS_L1_CACHE_SHIFT_7
1156 bool
1157
1158 config MIPS_L1_CACHE_SHIFT
1159 int
1160 default "4" if MIPS_L1_CACHE_SHIFT_4
1161 default "5" if MIPS_L1_CACHE_SHIFT_5
1162 default "6" if MIPS_L1_CACHE_SHIFT_6
1163 default "7" if MIPS_L1_CACHE_SHIFT_7
1164 default "5"
1165
1166 config HAVE_STD_PC_SERIAL_PORT
1167 bool
1168
1169 config ARC_CONSOLE
1170 bool "ARC console support"
1171 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1172
1173 config ARC_MEMORY
1174 bool
1175 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1176 default y
1177
1178 config ARC_PROMLIB
1179 bool
1180 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1181 default y
1182
1183 config FW_ARC64
1184 bool
1185
1186 config BOOT_ELF64
1187 bool
1188
1189 menu "CPU selection"
1190
1191 choice
1192 prompt "CPU type"
1193 default CPU_R4X00
1194
1195 config CPU_LOONGSON3
1196 bool "Loongson 3 CPU"
1197 depends on SYS_HAS_CPU_LOONGSON3
1198 select CPU_SUPPORTS_64BIT_KERNEL
1199 select CPU_SUPPORTS_HIGHMEM
1200 select CPU_SUPPORTS_HUGEPAGES
1201 select WEAK_ORDERING
1202 select WEAK_REORDERING_BEYOND_LLSC
1203 help
1204 The Loongson 3 processor implements the MIPS64R2 instruction
1205 set with many extensions.
1206
1207 config CPU_LOONGSON2E
1208 bool "Loongson 2E"
1209 depends on SYS_HAS_CPU_LOONGSON2E
1210 select CPU_LOONGSON2
1211 help
1212 The Loongson 2E processor implements the MIPS III instruction set
1213 with many extensions.
1214
1215 It has an internal FPGA northbridge, which is compatible to
1216 bonito64.
1217
1218 config CPU_LOONGSON2F
1219 bool "Loongson 2F"
1220 depends on SYS_HAS_CPU_LOONGSON2F
1221 select CPU_LOONGSON2
1222 select ARCH_REQUIRE_GPIOLIB
1223 help
1224 The Loongson 2F processor implements the MIPS III instruction set
1225 with many extensions.
1226
1227 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1228 have a similar programming interface with FPGA northbridge used in
1229 Loongson2E.
1230
1231 config CPU_LOONGSON1B
1232 bool "Loongson 1B"
1233 depends on SYS_HAS_CPU_LOONGSON1B
1234 select CPU_LOONGSON1
1235 help
1236 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1237 release 2 instruction set.
1238
1239 config CPU_MIPS32_R1
1240 bool "MIPS32 Release 1"
1241 depends on SYS_HAS_CPU_MIPS32_R1
1242 select CPU_HAS_PREFETCH
1243 select CPU_SUPPORTS_32BIT_KERNEL
1244 select CPU_SUPPORTS_HIGHMEM
1245 help
1246 Choose this option to build a kernel for release 1 or later of the
1247 MIPS32 architecture. Most modern embedded systems with a 32-bit
1248 MIPS processor are based on a MIPS32 processor. If you know the
1249 specific type of processor in your system, choose those that one
1250 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1251 Release 2 of the MIPS32 architecture is available since several
1252 years so chances are you even have a MIPS32 Release 2 processor
1253 in which case you should choose CPU_MIPS32_R2 instead for better
1254 performance.
1255
1256 config CPU_MIPS32_R2
1257 bool "MIPS32 Release 2"
1258 depends on SYS_HAS_CPU_MIPS32_R2
1259 select CPU_HAS_PREFETCH
1260 select CPU_SUPPORTS_32BIT_KERNEL
1261 select CPU_SUPPORTS_HIGHMEM
1262 select CPU_SUPPORTS_MSA
1263 select HAVE_KVM
1264 help
1265 Choose this option to build a kernel for release 2 or later of the
1266 MIPS32 architecture. Most modern embedded systems with a 32-bit
1267 MIPS processor are based on a MIPS32 processor. If you know the
1268 specific type of processor in your system, choose those that one
1269 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1270
1271 config CPU_MIPS64_R1
1272 bool "MIPS64 Release 1"
1273 depends on SYS_HAS_CPU_MIPS64_R1
1274 select CPU_HAS_PREFETCH
1275 select CPU_SUPPORTS_32BIT_KERNEL
1276 select CPU_SUPPORTS_64BIT_KERNEL
1277 select CPU_SUPPORTS_HIGHMEM
1278 select CPU_SUPPORTS_HUGEPAGES
1279 help
1280 Choose this option to build a kernel for release 1 or later of the
1281 MIPS64 architecture. Many modern embedded systems with a 64-bit
1282 MIPS processor are based on a MIPS64 processor. If you know the
1283 specific type of processor in your system, choose those that one
1284 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1285 Release 2 of the MIPS64 architecture is available since several
1286 years so chances are you even have a MIPS64 Release 2 processor
1287 in which case you should choose CPU_MIPS64_R2 instead for better
1288 performance.
1289
1290 config CPU_MIPS64_R2
1291 bool "MIPS64 Release 2"
1292 depends on SYS_HAS_CPU_MIPS64_R2
1293 select CPU_HAS_PREFETCH
1294 select CPU_SUPPORTS_32BIT_KERNEL
1295 select CPU_SUPPORTS_64BIT_KERNEL
1296 select CPU_SUPPORTS_HIGHMEM
1297 select CPU_SUPPORTS_HUGEPAGES
1298 select CPU_SUPPORTS_MSA
1299 help
1300 Choose this option to build a kernel for release 2 or later of the
1301 MIPS64 architecture. Many modern embedded systems with a 64-bit
1302 MIPS processor are based on a MIPS64 processor. If you know the
1303 specific type of processor in your system, choose those that one
1304 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1305
1306 config CPU_R3000
1307 bool "R3000"
1308 depends on SYS_HAS_CPU_R3000
1309 select CPU_HAS_WB
1310 select CPU_SUPPORTS_32BIT_KERNEL
1311 select CPU_SUPPORTS_HIGHMEM
1312 help
1313 Please make sure to pick the right CPU type. Linux/MIPS is not
1314 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1315 *not* work on R4000 machines and vice versa. However, since most
1316 of the supported machines have an R4000 (or similar) CPU, R4x00
1317 might be a safe bet. If the resulting kernel does not work,
1318 try to recompile with R3000.
1319
1320 config CPU_TX39XX
1321 bool "R39XX"
1322 depends on SYS_HAS_CPU_TX39XX
1323 select CPU_SUPPORTS_32BIT_KERNEL
1324
1325 config CPU_VR41XX
1326 bool "R41xx"
1327 depends on SYS_HAS_CPU_VR41XX
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 help
1331 The options selects support for the NEC VR4100 series of processors.
1332 Only choose this option if you have one of these processors as a
1333 kernel built with this option will not run on any other type of
1334 processor or vice versa.
1335
1336 config CPU_R4300
1337 bool "R4300"
1338 depends on SYS_HAS_CPU_R4300
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 help
1342 MIPS Technologies R4300-series processors.
1343
1344 config CPU_R4X00
1345 bool "R4x00"
1346 depends on SYS_HAS_CPU_R4X00
1347 select CPU_SUPPORTS_32BIT_KERNEL
1348 select CPU_SUPPORTS_64BIT_KERNEL
1349 select CPU_SUPPORTS_HUGEPAGES
1350 help
1351 MIPS Technologies R4000-series processors other than 4300, including
1352 the R4000, R4400, R4600, and 4700.
1353
1354 config CPU_TX49XX
1355 bool "R49XX"
1356 depends on SYS_HAS_CPU_TX49XX
1357 select CPU_HAS_PREFETCH
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HUGEPAGES
1361
1362 config CPU_R5000
1363 bool "R5000"
1364 depends on SYS_HAS_CPU_R5000
1365 select CPU_SUPPORTS_32BIT_KERNEL
1366 select CPU_SUPPORTS_64BIT_KERNEL
1367 select CPU_SUPPORTS_HUGEPAGES
1368 help
1369 MIPS Technologies R5000-series processors other than the Nevada.
1370
1371 config CPU_R5432
1372 bool "R5432"
1373 depends on SYS_HAS_CPU_R5432
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_64BIT_KERNEL
1376 select CPU_SUPPORTS_HUGEPAGES
1377
1378 config CPU_R5500
1379 bool "R5500"
1380 depends on SYS_HAS_CPU_R5500
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383 select CPU_SUPPORTS_HUGEPAGES
1384 help
1385 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1386 instruction set.
1387
1388 config CPU_R6000
1389 bool "R6000"
1390 depends on SYS_HAS_CPU_R6000
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 help
1393 MIPS Technologies R6000 and R6000A series processors. Note these
1394 processors are extremely rare and the support for them is incomplete.
1395
1396 config CPU_NEVADA
1397 bool "RM52xx"
1398 depends on SYS_HAS_CPU_NEVADA
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HUGEPAGES
1402 help
1403 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1404
1405 config CPU_R8000
1406 bool "R8000"
1407 depends on SYS_HAS_CPU_R8000
1408 select CPU_HAS_PREFETCH
1409 select CPU_SUPPORTS_64BIT_KERNEL
1410 help
1411 MIPS Technologies R8000 processors. Note these processors are
1412 uncommon and the support for them is incomplete.
1413
1414 config CPU_R10000
1415 bool "R10000"
1416 depends on SYS_HAS_CPU_R10000
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_HUGEPAGES
1422 help
1423 MIPS Technologies R10000-series processors.
1424
1425 config CPU_RM7000
1426 bool "RM7000"
1427 depends on SYS_HAS_CPU_RM7000
1428 select CPU_HAS_PREFETCH
1429 select CPU_SUPPORTS_32BIT_KERNEL
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_HUGEPAGES
1433
1434 config CPU_SB1
1435 bool "SB1"
1436 depends on SYS_HAS_CPU_SB1
1437 select CPU_SUPPORTS_32BIT_KERNEL
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select CPU_SUPPORTS_HIGHMEM
1440 select CPU_SUPPORTS_HUGEPAGES
1441 select WEAK_ORDERING
1442
1443 config CPU_CAVIUM_OCTEON
1444 bool "Cavium Octeon processor"
1445 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1446 select CPU_HAS_PREFETCH
1447 select CPU_SUPPORTS_64BIT_KERNEL
1448 select WEAK_ORDERING
1449 select CPU_SUPPORTS_HIGHMEM
1450 select CPU_SUPPORTS_HUGEPAGES
1451 select USB_EHCI_BIG_ENDIAN_MMIO
1452 select MIPS_L1_CACHE_SHIFT_7
1453 help
1454 The Cavium Octeon processor is a highly integrated chip containing
1455 many ethernet hardware widgets for networking tasks. The processor
1456 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1457 Full details can be found at http://www.caviumnetworks.com.
1458
1459 config CPU_BMIPS
1460 bool "Broadcom BMIPS"
1461 depends on SYS_HAS_CPU_BMIPS
1462 select CPU_MIPS32
1463 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1464 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1465 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1466 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1467 select CPU_SUPPORTS_32BIT_KERNEL
1468 select DMA_NONCOHERENT
1469 select IRQ_CPU
1470 select SWAP_IO_SPACE
1471 select WEAK_ORDERING
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_HAS_PREFETCH
1474 help
1475 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1476
1477 config CPU_XLR
1478 bool "Netlogic XLR SoC"
1479 depends on SYS_HAS_CPU_XLR
1480 select CPU_SUPPORTS_32BIT_KERNEL
1481 select CPU_SUPPORTS_64BIT_KERNEL
1482 select CPU_SUPPORTS_HIGHMEM
1483 select CPU_SUPPORTS_HUGEPAGES
1484 select WEAK_ORDERING
1485 select WEAK_REORDERING_BEYOND_LLSC
1486 help
1487 Netlogic Microsystems XLR/XLS processors.
1488
1489 config CPU_XLP
1490 bool "Netlogic XLP SoC"
1491 depends on SYS_HAS_CPU_XLP
1492 select CPU_SUPPORTS_32BIT_KERNEL
1493 select CPU_SUPPORTS_64BIT_KERNEL
1494 select CPU_SUPPORTS_HIGHMEM
1495 select WEAK_ORDERING
1496 select WEAK_REORDERING_BEYOND_LLSC
1497 select CPU_HAS_PREFETCH
1498 select CPU_MIPSR2
1499 help
1500 Netlogic Microsystems XLP processors.
1501 endchoice
1502
1503 config CPU_MIPS32_3_5_FEATURES
1504 bool "MIPS32 Release 3.5 Features"
1505 depends on SYS_HAS_CPU_MIPS32_R3_5
1506 depends on CPU_MIPS32_R2
1507 help
1508 Choose this option to build a kernel for release 2 or later of the
1509 MIPS32 architecture including features from the 3.5 release such as
1510 support for Enhanced Virtual Addressing (EVA).
1511
1512 config CPU_MIPS32_3_5_EVA
1513 bool "Enhanced Virtual Addressing (EVA)"
1514 depends on CPU_MIPS32_3_5_FEATURES
1515 select EVA
1516 default y
1517 help
1518 Choose this option if you want to enable the Enhanced Virtual
1519 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1520 One of its primary benefits is an increase in the maximum size
1521 of lowmem (up to 3GB). If unsure, say 'N' here.
1522
1523 if CPU_LOONGSON2F
1524 config CPU_NOP_WORKAROUNDS
1525 bool
1526
1527 config CPU_JUMP_WORKAROUNDS
1528 bool
1529
1530 config CPU_LOONGSON2F_WORKAROUNDS
1531 bool "Loongson 2F Workarounds"
1532 default y
1533 select CPU_NOP_WORKAROUNDS
1534 select CPU_JUMP_WORKAROUNDS
1535 help
1536 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1537 require workarounds. Without workarounds the system may hang
1538 unexpectedly. For more information please refer to the gas
1539 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1540
1541 Loongson 2F03 and later have fixed these issues and no workarounds
1542 are needed. The workarounds have no significant side effect on them
1543 but may decrease the performance of the system so this option should
1544 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1545 systems.
1546
1547 If unsure, please say Y.
1548 endif # CPU_LOONGSON2F
1549
1550 config SYS_SUPPORTS_ZBOOT
1551 bool
1552 select HAVE_KERNEL_GZIP
1553 select HAVE_KERNEL_BZIP2
1554 select HAVE_KERNEL_LZ4
1555 select HAVE_KERNEL_LZMA
1556 select HAVE_KERNEL_LZO
1557 select HAVE_KERNEL_XZ
1558
1559 config SYS_SUPPORTS_ZBOOT_UART16550
1560 bool
1561 select SYS_SUPPORTS_ZBOOT
1562
1563 config CPU_LOONGSON2
1564 bool
1565 select CPU_SUPPORTS_32BIT_KERNEL
1566 select CPU_SUPPORTS_64BIT_KERNEL
1567 select CPU_SUPPORTS_HIGHMEM
1568 select CPU_SUPPORTS_HUGEPAGES
1569
1570 config CPU_LOONGSON1
1571 bool
1572 select CPU_MIPS32
1573 select CPU_MIPSR2
1574 select CPU_HAS_PREFETCH
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select CPU_SUPPORTS_HIGHMEM
1577
1578 config CPU_BMIPS32_3300
1579 select SMP_UP if SMP
1580 bool
1581
1582 config CPU_BMIPS4350
1583 bool
1584 select SYS_SUPPORTS_SMP
1585 select SYS_SUPPORTS_HOTPLUG_CPU
1586
1587 config CPU_BMIPS4380
1588 bool
1589 select SYS_SUPPORTS_SMP
1590 select SYS_SUPPORTS_HOTPLUG_CPU
1591
1592 config CPU_BMIPS5000
1593 bool
1594 select MIPS_CPU_SCACHE
1595 select SYS_SUPPORTS_SMP
1596 select SYS_SUPPORTS_HOTPLUG_CPU
1597
1598 config SYS_HAS_CPU_LOONGSON3
1599 bool
1600 select CPU_SUPPORTS_CPUFREQ
1601
1602 config SYS_HAS_CPU_LOONGSON2E
1603 bool
1604
1605 config SYS_HAS_CPU_LOONGSON2F
1606 bool
1607 select CPU_SUPPORTS_CPUFREQ
1608 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1609 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1610
1611 config SYS_HAS_CPU_LOONGSON1B
1612 bool
1613
1614 config SYS_HAS_CPU_MIPS32_R1
1615 bool
1616
1617 config SYS_HAS_CPU_MIPS32_R2
1618 bool
1619
1620 config SYS_HAS_CPU_MIPS32_R3_5
1621 bool
1622
1623 config SYS_HAS_CPU_MIPS64_R1
1624 bool
1625
1626 config SYS_HAS_CPU_MIPS64_R2
1627 bool
1628
1629 config SYS_HAS_CPU_R3000
1630 bool
1631
1632 config SYS_HAS_CPU_TX39XX
1633 bool
1634
1635 config SYS_HAS_CPU_VR41XX
1636 bool
1637
1638 config SYS_HAS_CPU_R4300
1639 bool
1640
1641 config SYS_HAS_CPU_R4X00
1642 bool
1643
1644 config SYS_HAS_CPU_TX49XX
1645 bool
1646
1647 config SYS_HAS_CPU_R5000
1648 bool
1649
1650 config SYS_HAS_CPU_R5432
1651 bool
1652
1653 config SYS_HAS_CPU_R5500
1654 bool
1655
1656 config SYS_HAS_CPU_R6000
1657 bool
1658
1659 config SYS_HAS_CPU_NEVADA
1660 bool
1661
1662 config SYS_HAS_CPU_R8000
1663 bool
1664
1665 config SYS_HAS_CPU_R10000
1666 bool
1667
1668 config SYS_HAS_CPU_RM7000
1669 bool
1670
1671 config SYS_HAS_CPU_SB1
1672 bool
1673
1674 config SYS_HAS_CPU_CAVIUM_OCTEON
1675 bool
1676
1677 config SYS_HAS_CPU_BMIPS
1678 bool
1679
1680 config SYS_HAS_CPU_BMIPS32_3300
1681 bool
1682 select SYS_HAS_CPU_BMIPS
1683
1684 config SYS_HAS_CPU_BMIPS4350
1685 bool
1686 select SYS_HAS_CPU_BMIPS
1687
1688 config SYS_HAS_CPU_BMIPS4380
1689 bool
1690 select SYS_HAS_CPU_BMIPS
1691
1692 config SYS_HAS_CPU_BMIPS5000
1693 bool
1694 select SYS_HAS_CPU_BMIPS
1695
1696 config SYS_HAS_CPU_XLR
1697 bool
1698
1699 config SYS_HAS_CPU_XLP
1700 bool
1701
1702 config MIPS_MALTA_PM
1703 depends on MIPS_MALTA
1704 depends on PCI
1705 bool
1706 default y
1707
1708 #
1709 # CPU may reorder R->R, R->W, W->R, W->W
1710 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1711 #
1712 config WEAK_ORDERING
1713 bool
1714
1715 #
1716 # CPU may reorder reads and writes beyond LL/SC
1717 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1718 #
1719 config WEAK_REORDERING_BEYOND_LLSC
1720 bool
1721 endmenu
1722
1723 #
1724 # These two indicate any level of the MIPS32 and MIPS64 architecture
1725 #
1726 config CPU_MIPS32
1727 bool
1728 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1729
1730 config CPU_MIPS64
1731 bool
1732 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1733
1734 #
1735 # These two indicate the revision of the architecture, either Release 1 or Release 2
1736 #
1737 config CPU_MIPSR1
1738 bool
1739 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1740
1741 config CPU_MIPSR2
1742 bool
1743 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1744
1745 config EVA
1746 bool
1747
1748 config SYS_SUPPORTS_32BIT_KERNEL
1749 bool
1750 config SYS_SUPPORTS_64BIT_KERNEL
1751 bool
1752 config CPU_SUPPORTS_32BIT_KERNEL
1753 bool
1754 config CPU_SUPPORTS_64BIT_KERNEL
1755 bool
1756 config CPU_SUPPORTS_CPUFREQ
1757 bool
1758 config CPU_SUPPORTS_ADDRWINCFG
1759 bool
1760 config CPU_SUPPORTS_HUGEPAGES
1761 bool
1762 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1763 bool
1764 config MIPS_PGD_C0_CONTEXT
1765 bool
1766 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1767
1768 #
1769 # Set to y for ptrace access to watch registers.
1770 #
1771 config HARDWARE_WATCHPOINTS
1772 bool
1773 default y if CPU_MIPSR1 || CPU_MIPSR2
1774
1775 menu "Kernel type"
1776
1777 choice
1778 prompt "Kernel code model"
1779 help
1780 You should only select this option if you have a workload that
1781 actually benefits from 64-bit processing or if your machine has
1782 large memory. You will only be presented a single option in this
1783 menu if your system does not support both 32-bit and 64-bit kernels.
1784
1785 config 32BIT
1786 bool "32-bit kernel"
1787 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1788 select TRAD_SIGNALS
1789 help
1790 Select this option if you want to build a 32-bit kernel.
1791 config 64BIT
1792 bool "64-bit kernel"
1793 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1794 help
1795 Select this option if you want to build a 64-bit kernel.
1796
1797 endchoice
1798
1799 config KVM_GUEST
1800 bool "KVM Guest Kernel"
1801 depends on BROKEN_ON_SMP
1802 help
1803 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1804
1805 config KVM_GUEST_TIMER_FREQ
1806 int "Count/Compare Timer Frequency (MHz)"
1807 depends on KVM_GUEST
1808 default 100
1809 help
1810 Set this to non-zero if building a guest kernel for KVM to skip RTC
1811 emulation when determining guest CPU Frequency. Instead, the guest's
1812 timer frequency is specified directly.
1813
1814 choice
1815 prompt "Kernel page size"
1816 default PAGE_SIZE_4KB
1817
1818 config PAGE_SIZE_4KB
1819 bool "4kB"
1820 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1821 help
1822 This option select the standard 4kB Linux page size. On some
1823 R3000-family processors this is the only available page size. Using
1824 4kB page size will minimize memory consumption and is therefore
1825 recommended for low memory systems.
1826
1827 config PAGE_SIZE_8KB
1828 bool "8kB"
1829 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1830 help
1831 Using 8kB page size will result in higher performance kernel at
1832 the price of higher memory consumption. This option is available
1833 only on R8000 and cnMIPS processors. Note that you will need a
1834 suitable Linux distribution to support this.
1835
1836 config PAGE_SIZE_16KB
1837 bool "16kB"
1838 depends on !CPU_R3000 && !CPU_TX39XX
1839 help
1840 Using 16kB page size will result in higher performance kernel at
1841 the price of higher memory consumption. This option is available on
1842 all non-R3000 family processors. Note that you will need a suitable
1843 Linux distribution to support this.
1844
1845 config PAGE_SIZE_32KB
1846 bool "32kB"
1847 depends on CPU_CAVIUM_OCTEON
1848 help
1849 Using 32kB page size will result in higher performance kernel at
1850 the price of higher memory consumption. This option is available
1851 only on cnMIPS cores. Note that you will need a suitable Linux
1852 distribution to support this.
1853
1854 config PAGE_SIZE_64KB
1855 bool "64kB"
1856 depends on !CPU_R3000 && !CPU_TX39XX
1857 help
1858 Using 64kB page size will result in higher performance kernel at
1859 the price of higher memory consumption. This option is available on
1860 all non-R3000 family processor. Not that at the time of this
1861 writing this option is still high experimental.
1862
1863 endchoice
1864
1865 config FORCE_MAX_ZONEORDER
1866 int "Maximum zone order"
1867 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1868 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1869 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1870 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1871 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1872 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1873 range 11 64
1874 default "11"
1875 help
1876 The kernel memory allocator divides physically contiguous memory
1877 blocks into "zones", where each zone is a power of two number of
1878 pages. This option selects the largest power of two that the kernel
1879 keeps in the memory allocator. If you need to allocate very large
1880 blocks of physically contiguous memory, then you may need to
1881 increase this value.
1882
1883 This config option is actually maximum order plus one. For example,
1884 a value of 11 means that the largest free memory block is 2^10 pages.
1885
1886 The page size is not necessarily 4KB. Keep this in mind
1887 when choosing a value for this option.
1888
1889 config CEVT_GIC
1890 bool "Use GIC global counter for clock events"
1891 depends on IRQ_GIC && !MIPS_SEAD3
1892 help
1893 Use the GIC global counter for the clock events. The R4K clock
1894 event driver is always present, so if the platform ends up not
1895 detecting a GIC, it will fall back to the R4K timer for the
1896 generation of clock events.
1897
1898 config BOARD_SCACHE
1899 bool
1900
1901 config IP22_CPU_SCACHE
1902 bool
1903 select BOARD_SCACHE
1904
1905 #
1906 # Support for a MIPS32 / MIPS64 style S-caches
1907 #
1908 config MIPS_CPU_SCACHE
1909 bool
1910 select BOARD_SCACHE
1911 select MIPS_L1_CACHE_SHIFT_6
1912
1913 config R5000_CPU_SCACHE
1914 bool
1915 select BOARD_SCACHE
1916
1917 config RM7000_CPU_SCACHE
1918 bool
1919 select BOARD_SCACHE
1920
1921 config SIBYTE_DMA_PAGEOPS
1922 bool "Use DMA to clear/copy pages"
1923 depends on CPU_SB1
1924 help
1925 Instead of using the CPU to zero and copy pages, use a Data Mover
1926 channel. These DMA channels are otherwise unused by the standard
1927 SiByte Linux port. Seems to give a small performance benefit.
1928
1929 config CPU_HAS_PREFETCH
1930 bool
1931
1932 config CPU_GENERIC_DUMP_TLB
1933 bool
1934 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1935
1936 config CPU_R4K_FPU
1937 bool
1938 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1939
1940 config CPU_R4K_CACHE_TLB
1941 bool
1942 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1943
1944 config MIPS_MT_SMP
1945 bool "MIPS MT SMP support (1 TC on each available VPE)"
1946 depends on SYS_SUPPORTS_MULTITHREADING
1947 select CPU_MIPSR2_IRQ_VI
1948 select CPU_MIPSR2_IRQ_EI
1949 select SYNC_R4K
1950 select MIPS_GIC_IPI
1951 select MIPS_MT
1952 select SMP
1953 select SMP_UP
1954 select SYS_SUPPORTS_SMP
1955 select SYS_SUPPORTS_SCHED_SMT
1956 select MIPS_PERF_SHARED_TC_COUNTERS
1957 help
1958 This is a kernel model which is known as SMVP. This is supported
1959 on cores with the MT ASE and uses the available VPEs to implement
1960 virtual processors which supports SMP. This is equivalent to the
1961 Intel Hyperthreading feature. For further information go to
1962 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1963
1964 config MIPS_MT
1965 bool
1966
1967 config SCHED_SMT
1968 bool "SMT (multithreading) scheduler support"
1969 depends on SYS_SUPPORTS_SCHED_SMT
1970 default n
1971 help
1972 SMT scheduler support improves the CPU scheduler's decision making
1973 when dealing with MIPS MT enabled cores at a cost of slightly
1974 increased overhead in some places. If unsure say N here.
1975
1976 config SYS_SUPPORTS_SCHED_SMT
1977 bool
1978
1979 config SYS_SUPPORTS_MULTITHREADING
1980 bool
1981
1982 config MIPS_MT_FPAFF
1983 bool "Dynamic FPU affinity for FP-intensive threads"
1984 default y
1985 depends on MIPS_MT_SMP
1986
1987 config MIPS_VPE_LOADER
1988 bool "VPE loader support."
1989 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1990 select CPU_MIPSR2_IRQ_VI
1991 select CPU_MIPSR2_IRQ_EI
1992 select MIPS_MT
1993 help
1994 Includes a loader for loading an elf relocatable object
1995 onto another VPE and running it.
1996
1997 config MIPS_VPE_LOADER_CMP
1998 bool
1999 default "y"
2000 depends on MIPS_VPE_LOADER && MIPS_CMP
2001
2002 config MIPS_VPE_LOADER_MT
2003 bool
2004 default "y"
2005 depends on MIPS_VPE_LOADER && !MIPS_CMP
2006
2007 config MIPS_VPE_LOADER_TOM
2008 bool "Load VPE program into memory hidden from linux"
2009 depends on MIPS_VPE_LOADER
2010 default y
2011 help
2012 The loader can use memory that is present but has been hidden from
2013 Linux using the kernel command line option "mem=xxMB". It's up to
2014 you to ensure the amount you put in the option and the space your
2015 program requires is less or equal to the amount physically present.
2016
2017 config MIPS_VPE_APSP_API
2018 bool "Enable support for AP/SP API (RTLX)"
2019 depends on MIPS_VPE_LOADER
2020 help
2021
2022 config MIPS_VPE_APSP_API_CMP
2023 bool
2024 default "y"
2025 depends on MIPS_VPE_APSP_API && MIPS_CMP
2026
2027 config MIPS_VPE_APSP_API_MT
2028 bool
2029 default "y"
2030 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2031
2032 config MIPS_CMP
2033 bool "MIPS CMP framework support (DEPRECATED)"
2034 depends on SYS_SUPPORTS_MIPS_CMP
2035 select MIPS_GIC_IPI
2036 select SMP
2037 select SYNC_R4K
2038 select SYS_SUPPORTS_SMP
2039 select WEAK_ORDERING
2040 default n
2041 help
2042 Select this if you are using a bootloader which implements the "CMP
2043 framework" protocol (ie. YAMON) and want your kernel to make use of
2044 its ability to start secondary CPUs.
2045
2046 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2047 instead of this.
2048
2049 config MIPS_CPS
2050 bool "MIPS Coherent Processing System support"
2051 depends on SYS_SUPPORTS_MIPS_CPS
2052 select MIPS_CM
2053 select MIPS_CPC
2054 select MIPS_CPS_PM if HOTPLUG_CPU
2055 select MIPS_GIC_IPI
2056 select SMP
2057 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2058 select SYS_SUPPORTS_HOTPLUG_CPU
2059 select SYS_SUPPORTS_SMP
2060 select WEAK_ORDERING
2061 help
2062 Select this if you wish to run an SMP kernel across multiple cores
2063 within a MIPS Coherent Processing System. When this option is
2064 enabled the kernel will probe for other cores and boot them with
2065 no external assistance. It is safe to enable this when hardware
2066 support is unavailable.
2067
2068 config MIPS_CPS_PM
2069 depends on MIPS_CPS
2070 select MIPS_CPC
2071 bool
2072
2073 config MIPS_GIC_IPI
2074 bool
2075
2076 config MIPS_CM
2077 bool
2078
2079 config MIPS_CPC
2080 bool
2081
2082 config SB1_PASS_1_WORKAROUNDS
2083 bool
2084 depends on CPU_SB1_PASS_1
2085 default y
2086
2087 config SB1_PASS_2_WORKAROUNDS
2088 bool
2089 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2090 default y
2091
2092 config SB1_PASS_2_1_WORKAROUNDS
2093 bool
2094 depends on CPU_SB1 && CPU_SB1_PASS_2
2095 default y
2096
2097
2098 config 64BIT_PHYS_ADDR
2099 bool
2100
2101 config ARCH_PHYS_ADDR_T_64BIT
2102 def_bool 64BIT_PHYS_ADDR
2103
2104 config CPU_HAS_SMARTMIPS
2105 depends on SYS_SUPPORTS_SMARTMIPS
2106 bool "Support for the SmartMIPS ASE"
2107 help
2108 SmartMIPS is a extension of the MIPS32 architecture aimed at
2109 increased security at both hardware and software level for
2110 smartcards. Enabling this option will allow proper use of the
2111 SmartMIPS instructions by Linux applications. However a kernel with
2112 this option will not work on a MIPS core without SmartMIPS core. If
2113 you don't know you probably don't have SmartMIPS and should say N
2114 here.
2115
2116 config CPU_MICROMIPS
2117 depends on SYS_SUPPORTS_MICROMIPS
2118 bool "Build kernel using microMIPS ISA"
2119 help
2120 When this option is enabled the kernel will be built using the
2121 microMIPS ISA
2122
2123 config CPU_HAS_MSA
2124 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2125 depends on CPU_SUPPORTS_MSA
2126 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2127 help
2128 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2129 and a set of SIMD instructions to operate on them. When this option
2130 is enabled the kernel will support allocating & switching MSA
2131 vector register contexts. If you know that your kernel will only be
2132 running on CPUs which do not support MSA or that your userland will
2133 not be making use of it then you may wish to say N here to reduce
2134 the size & complexity of your kernel.
2135
2136 If unsure, say Y.
2137
2138 config CPU_HAS_WB
2139 bool
2140
2141 config XKS01
2142 bool
2143
2144 #
2145 # Vectored interrupt mode is an R2 feature
2146 #
2147 config CPU_MIPSR2_IRQ_VI
2148 bool
2149
2150 #
2151 # Extended interrupt mode is an R2 feature
2152 #
2153 config CPU_MIPSR2_IRQ_EI
2154 bool
2155
2156 config CPU_HAS_SYNC
2157 bool
2158 depends on !CPU_R3000
2159 default y
2160
2161 #
2162 # CPU non-features
2163 #
2164 config CPU_DADDI_WORKAROUNDS
2165 bool
2166
2167 config CPU_R4000_WORKAROUNDS
2168 bool
2169 select CPU_R4400_WORKAROUNDS
2170
2171 config CPU_R4400_WORKAROUNDS
2172 bool
2173
2174 #
2175 # - Highmem only makes sense for the 32-bit kernel.
2176 # - The current highmem code will only work properly on physically indexed
2177 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2178 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2179 # moment we protect the user and offer the highmem option only on machines
2180 # where it's known to be safe. This will not offer highmem on a few systems
2181 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2182 # indexed CPUs but we're playing safe.
2183 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2184 # know they might have memory configurations that could make use of highmem
2185 # support.
2186 #
2187 config HIGHMEM
2188 bool "High Memory Support"
2189 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2190
2191 config CPU_SUPPORTS_HIGHMEM
2192 bool
2193
2194 config SYS_SUPPORTS_HIGHMEM
2195 bool
2196
2197 config SYS_SUPPORTS_SMARTMIPS
2198 bool
2199
2200 config SYS_SUPPORTS_MICROMIPS
2201 bool
2202
2203 config SYS_SUPPORTS_MIPS16
2204 bool
2205 help
2206 This option must be set if a kernel might be executed on a MIPS16-
2207 enabled CPU even if MIPS16 is not actually being used. In other
2208 words, it makes the kernel MIPS16-tolerant.
2209
2210 config CPU_SUPPORTS_MSA
2211 bool
2212
2213 config ARCH_FLATMEM_ENABLE
2214 def_bool y
2215 depends on !NUMA && !CPU_LOONGSON2
2216
2217 config ARCH_DISCONTIGMEM_ENABLE
2218 bool
2219 default y if SGI_IP27
2220 help
2221 Say Y to support efficient handling of discontiguous physical memory,
2222 for architectures which are either NUMA (Non-Uniform Memory Access)
2223 or have huge holes in the physical address space for other reasons.
2224 See <file:Documentation/vm/numa> for more.
2225
2226 config ARCH_SPARSEMEM_ENABLE
2227 bool
2228 select SPARSEMEM_STATIC
2229
2230 config NUMA
2231 bool "NUMA Support"
2232 depends on SYS_SUPPORTS_NUMA
2233 help
2234 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2235 Access). This option improves performance on systems with more
2236 than two nodes; on two node systems it is generally better to
2237 leave it disabled; on single node systems disable this option
2238 disabled.
2239
2240 config SYS_SUPPORTS_NUMA
2241 bool
2242
2243 config NODES_SHIFT
2244 int
2245 default "6"
2246 depends on NEED_MULTIPLE_NODES
2247
2248 config HW_PERF_EVENTS
2249 bool "Enable hardware performance counter support for perf events"
2250 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2251 default y
2252 help
2253 Enable hardware performance counter support for perf events. If
2254 disabled, perf events will use software events only.
2255
2256 source "mm/Kconfig"
2257
2258 config SMP
2259 bool "Multi-Processing support"
2260 depends on SYS_SUPPORTS_SMP
2261 help
2262 This enables support for systems with more than one CPU. If you have
2263 a system with only one CPU, say N. If you have a system with more
2264 than one CPU, say Y.
2265
2266 If you say N here, the kernel will run on uni- and multiprocessor
2267 machines, but will use only one CPU of a multiprocessor machine. If
2268 you say Y here, the kernel will run on many, but not all,
2269 uniprocessor machines. On a uniprocessor machine, the kernel
2270 will run faster if you say N here.
2271
2272 People using multiprocessor machines who say Y here should also say
2273 Y to "Enhanced Real Time Clock Support", below.
2274
2275 See also the SMP-HOWTO available at
2276 <http://www.tldp.org/docs.html#howto>.
2277
2278 If you don't know what to do here, say N.
2279
2280 config SMP_UP
2281 bool
2282
2283 config SYS_SUPPORTS_MIPS_CMP
2284 bool
2285
2286 config SYS_SUPPORTS_MIPS_CPS
2287 bool
2288
2289 config SYS_SUPPORTS_SMP
2290 bool
2291
2292 config NR_CPUS_DEFAULT_4
2293 bool
2294
2295 config NR_CPUS_DEFAULT_8
2296 bool
2297
2298 config NR_CPUS_DEFAULT_16
2299 bool
2300
2301 config NR_CPUS_DEFAULT_32
2302 bool
2303
2304 config NR_CPUS_DEFAULT_64
2305 bool
2306
2307 config NR_CPUS
2308 int "Maximum number of CPUs (2-256)"
2309 range 2 256
2310 depends on SMP
2311 default "4" if NR_CPUS_DEFAULT_4
2312 default "8" if NR_CPUS_DEFAULT_8
2313 default "16" if NR_CPUS_DEFAULT_16
2314 default "32" if NR_CPUS_DEFAULT_32
2315 default "64" if NR_CPUS_DEFAULT_64
2316 help
2317 This allows you to specify the maximum number of CPUs which this
2318 kernel will support. The maximum supported value is 32 for 32-bit
2319 kernel and 64 for 64-bit kernels; the minimum value which makes
2320 sense is 1 for Qemu (useful only for kernel debugging purposes)
2321 and 2 for all others.
2322
2323 This is purely to save memory - each supported CPU adds
2324 approximately eight kilobytes to the kernel image. For best
2325 performance should round up your number of processors to the next
2326 power of two.
2327
2328 config MIPS_PERF_SHARED_TC_COUNTERS
2329 bool
2330
2331 #
2332 # Timer Interrupt Frequency Configuration
2333 #
2334
2335 choice
2336 prompt "Timer frequency"
2337 default HZ_250
2338 help
2339 Allows the configuration of the timer frequency.
2340
2341 config HZ_48
2342 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2343
2344 config HZ_100
2345 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2346
2347 config HZ_128
2348 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2349
2350 config HZ_250
2351 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2352
2353 config HZ_256
2354 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2355
2356 config HZ_1000
2357 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2358
2359 config HZ_1024
2360 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2361
2362 endchoice
2363
2364 config SYS_SUPPORTS_48HZ
2365 bool
2366
2367 config SYS_SUPPORTS_100HZ
2368 bool
2369
2370 config SYS_SUPPORTS_128HZ
2371 bool
2372
2373 config SYS_SUPPORTS_250HZ
2374 bool
2375
2376 config SYS_SUPPORTS_256HZ
2377 bool
2378
2379 config SYS_SUPPORTS_1000HZ
2380 bool
2381
2382 config SYS_SUPPORTS_1024HZ
2383 bool
2384
2385 config SYS_SUPPORTS_ARBIT_HZ
2386 bool
2387 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2388 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2389 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2390 !SYS_SUPPORTS_1024HZ
2391
2392 config HZ
2393 int
2394 default 48 if HZ_48
2395 default 100 if HZ_100
2396 default 128 if HZ_128
2397 default 250 if HZ_250
2398 default 256 if HZ_256
2399 default 1000 if HZ_1000
2400 default 1024 if HZ_1024
2401
2402 source "kernel/Kconfig.preempt"
2403
2404 config KEXEC
2405 bool "Kexec system call"
2406 help
2407 kexec is a system call that implements the ability to shutdown your
2408 current kernel, and to start another kernel. It is like a reboot
2409 but it is independent of the system firmware. And like a reboot
2410 you can start any kernel with it, not just Linux.
2411
2412 The name comes from the similarity to the exec system call.
2413
2414 It is an ongoing process to be certain the hardware in a machine
2415 is properly shutdown, so do not be surprised if this code does not
2416 initially work for you. As of this writing the exact hardware
2417 interface is strongly in flux, so no good recommendation can be
2418 made.
2419
2420 config CRASH_DUMP
2421 bool "Kernel crash dumps"
2422 help
2423 Generate crash dump after being started by kexec.
2424 This should be normally only set in special crash dump kernels
2425 which are loaded in the main kernel with kexec-tools into
2426 a specially reserved region and then later executed after
2427 a crash by kdump/kexec. The crash dump kernel must be compiled
2428 to a memory address not used by the main kernel or firmware using
2429 PHYSICAL_START.
2430
2431 config PHYSICAL_START
2432 hex "Physical address where the kernel is loaded"
2433 default "0xffffffff84000000" if 64BIT
2434 default "0x84000000" if 32BIT
2435 depends on CRASH_DUMP
2436 help
2437 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2438 If you plan to use kernel for capturing the crash dump change
2439 this value to start of the reserved region (the "X" value as
2440 specified in the "crashkernel=YM@XM" command line boot parameter
2441 passed to the panic-ed kernel).
2442
2443 config SECCOMP
2444 bool "Enable seccomp to safely compute untrusted bytecode"
2445 depends on PROC_FS
2446 default y
2447 help
2448 This kernel feature is useful for number crunching applications
2449 that may need to compute untrusted bytecode during their
2450 execution. By using pipes or other transports made available to
2451 the process as file descriptors supporting the read/write
2452 syscalls, it's possible to isolate those applications in
2453 their own address space using seccomp. Once seccomp is
2454 enabled via /proc/<pid>/seccomp, it cannot be disabled
2455 and the task is only allowed to execute a few safe syscalls
2456 defined by each seccomp mode.
2457
2458 If unsure, say Y. Only embedded should say N here.
2459
2460 config MIPS_O32_FP64_SUPPORT
2461 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2462 depends on 32BIT || MIPS32_O32
2463 help
2464 When this is enabled, the kernel will support use of 64-bit floating
2465 point registers with binaries using the O32 ABI along with the
2466 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2467 32-bit MIPS systems this support is at the cost of increasing the
2468 size and complexity of the compiled FPU emulator. Thus if you are
2469 running a MIPS32 system and know that none of your userland binaries
2470 will require 64-bit floating point, you may wish to reduce the size
2471 of your kernel & potentially improve FP emulation performance by
2472 saying N here.
2473
2474 Although binutils currently supports use of this flag the details
2475 concerning its effect upon the O32 ABI in userland are still being
2476 worked on. In order to avoid userland becoming dependant upon current
2477 behaviour before the details have been finalised, this option should
2478 be considered experimental and only enabled by those working upon
2479 said details.
2480
2481 If unsure, say N.
2482
2483 config USE_OF
2484 bool
2485 select OF
2486 select OF_EARLY_FLATTREE
2487 select IRQ_DOMAIN
2488
2489 config BUILTIN_DTB
2490 bool
2491
2492 endmenu
2493
2494 config LOCKDEP_SUPPORT
2495 bool
2496 default y
2497
2498 config STACKTRACE_SUPPORT
2499 bool
2500 default y
2501
2502 source "init/Kconfig"
2503
2504 source "kernel/Kconfig.freezer"
2505
2506 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2507
2508 config HW_HAS_EISA
2509 bool
2510 config HW_HAS_PCI
2511 bool
2512
2513 config PCI
2514 bool "Support for PCI controller"
2515 depends on HW_HAS_PCI
2516 select PCI_DOMAINS
2517 select NO_GENERIC_PCI_IOPORT_MAP
2518 help
2519 Find out whether you have a PCI motherboard. PCI is the name of a
2520 bus system, i.e. the way the CPU talks to the other stuff inside
2521 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2522 say Y, otherwise N.
2523
2524 config HT_PCI
2525 bool "Support for HT-linked PCI"
2526 default y
2527 depends on CPU_LOONGSON3
2528 select PCI
2529 select PCI_DOMAINS
2530 help
2531 Loongson family machines use Hyper-Transport bus for inter-core
2532 connection and device connection. The PCI bus is a subordinate
2533 linked at HT. Choose Y for Loongson-3 based machines.
2534
2535 config PCI_DOMAINS
2536 bool
2537
2538 source "drivers/pci/Kconfig"
2539
2540 source "drivers/pci/pcie/Kconfig"
2541
2542 #
2543 # ISA support is now enabled via select. Too many systems still have the one
2544 # or other ISA chip on the board that users don't know about so don't expect
2545 # users to choose the right thing ...
2546 #
2547 config ISA
2548 bool
2549
2550 config EISA
2551 bool "EISA support"
2552 depends on HW_HAS_EISA
2553 select ISA
2554 select GENERIC_ISA_DMA
2555 ---help---
2556 The Extended Industry Standard Architecture (EISA) bus was
2557 developed as an open alternative to the IBM MicroChannel bus.
2558
2559 The EISA bus provided some of the features of the IBM MicroChannel
2560 bus while maintaining backward compatibility with cards made for
2561 the older ISA bus. The EISA bus saw limited use between 1988 and
2562 1995 when it was made obsolete by the PCI bus.
2563
2564 Say Y here if you are building a kernel for an EISA-based machine.
2565
2566 Otherwise, say N.
2567
2568 source "drivers/eisa/Kconfig"
2569
2570 config TC
2571 bool "TURBOchannel support"
2572 depends on MACH_DECSTATION
2573 help
2574 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2575 processors. TURBOchannel programming specifications are available
2576 at:
2577 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2578 and:
2579 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2580 Linux driver support status is documented at:
2581 <http://www.linux-mips.org/wiki/DECstation>
2582
2583 config MMU
2584 bool
2585 default y
2586
2587 config I8253
2588 bool
2589 select CLKSRC_I8253
2590 select CLKEVT_I8253
2591 select MIPS_EXTERNAL_TIMER
2592
2593 config ZONE_DMA
2594 bool
2595
2596 config ZONE_DMA32
2597 bool
2598
2599 source "drivers/pcmcia/Kconfig"
2600
2601 source "drivers/pci/hotplug/Kconfig"
2602
2603 config RAPIDIO
2604 tristate "RapidIO support"
2605 depends on PCI
2606 default n
2607 help
2608 If you say Y here, the kernel will include drivers and
2609 infrastructure code to support RapidIO interconnect devices.
2610
2611 source "drivers/rapidio/Kconfig"
2612
2613 endmenu
2614
2615 menu "Executable file formats"
2616
2617 source "fs/Kconfig.binfmt"
2618
2619 config TRAD_SIGNALS
2620 bool
2621
2622 config MIPS32_COMPAT
2623 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2624 depends on 64BIT
2625 help
2626 Select this option if you want Linux/MIPS 32-bit binary
2627 compatibility. Since all software available for Linux/MIPS is
2628 currently 32-bit you should say Y here.
2629
2630 config COMPAT
2631 bool
2632 depends on MIPS32_COMPAT
2633 select ARCH_WANT_OLD_COMPAT_IPC
2634 default y
2635
2636 config SYSVIPC_COMPAT
2637 bool
2638 depends on COMPAT && SYSVIPC
2639 default y
2640
2641 config MIPS32_O32
2642 bool "Kernel support for o32 binaries"
2643 depends on MIPS32_COMPAT
2644 help
2645 Select this option if you want to run o32 binaries. These are pure
2646 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2647 existing binaries are in this format.
2648
2649 If unsure, say Y.
2650
2651 config MIPS32_N32
2652 bool "Kernel support for n32 binaries"
2653 depends on MIPS32_COMPAT
2654 help
2655 Select this option if you want to run n32 binaries. These are
2656 64-bit binaries using 32-bit quantities for addressing and certain
2657 data that would normally be 64-bit. They are used in special
2658 cases.
2659
2660 If unsure, say N.
2661
2662 config BINFMT_ELF32
2663 bool
2664 default y if MIPS32_O32 || MIPS32_N32
2665
2666 endmenu
2667
2668 menu "Power management options"
2669
2670 config ARCH_HIBERNATION_POSSIBLE
2671 def_bool y
2672 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2673
2674 config ARCH_SUSPEND_POSSIBLE
2675 def_bool y
2676 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2677
2678 source "kernel/power/Kconfig"
2679
2680 endmenu
2681
2682 config MIPS_EXTERNAL_TIMER
2683 bool
2684
2685 menu "CPU Power Management"
2686
2687 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2688 source "drivers/cpufreq/Kconfig"
2689 endif
2690
2691 source "drivers/cpuidle/Kconfig"
2692
2693 endmenu
2694
2695 source "net/Kconfig"
2696
2697 source "drivers/Kconfig"
2698
2699 source "drivers/firmware/Kconfig"
2700
2701 source "fs/Kconfig"
2702
2703 source "arch/mips/Kconfig.debug"
2704
2705 source "security/Kconfig"
2706
2707 source "crypto/Kconfig"
2708
2709 source "lib/Kconfig"
2710
2711 source "arch/mips/kvm/Kconfig"
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