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Merge branch '3.14-fixes' into mips-for-linux-next
[mirror_ubuntu-artful-kernel.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 ARCH_HAVE_CUSTOM_GPIO_H
16 select HAVE_FUNCTION_TRACER
17 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
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_API_DEBUG
33 select GENERIC_IRQ_PROBE
34 select GENERIC_IRQ_SHOW
35 select GENERIC_PCI_IOMAP
36 select HAVE_ARCH_JUMP_LABEL
37 select ARCH_WANT_IPC_PARSE_VERSION
38 select IRQ_FORCED_THREADING
39 select HAVE_MEMBLOCK
40 select HAVE_MEMBLOCK_NODE_MAP
41 select ARCH_DISCARD_MEMBLOCK
42 select GENERIC_SMP_IDLE_THREAD
43 select BUILDTIME_EXTABLE_SORT
44 select GENERIC_CLOCKEVENTS
45 select GENERIC_CMOS_UPDATE
46 select HAVE_MOD_ARCH_SPECIFIC
47 select VIRT_TO_BUS
48 select MODULES_USE_ELF_REL if MODULES
49 select MODULES_USE_ELF_RELA if MODULES && 64BIT
50 select CLONE_BACKWARDS
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_CC_STACKPROTECTOR
53
54 menu "Machine selection"
55
56 choice
57 prompt "System type"
58 default SGI_IP22
59
60 config MIPS_ALCHEMY
61 bool "Alchemy processor based machines"
62 select 64BIT_PHYS_ADDR
63 select CEVT_R4K
64 select CSRC_R4K
65 select IRQ_CPU
66 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
67 select SYS_HAS_CPU_MIPS32_R1
68 select SYS_SUPPORTS_32BIT_KERNEL
69 select SYS_SUPPORTS_APM_EMULATION
70 select ARCH_REQUIRE_GPIOLIB
71 select SYS_SUPPORTS_ZBOOT
72 select USB_ARCH_HAS_OHCI
73 select USB_ARCH_HAS_EHCI
74
75 config AR7
76 bool "Texas Instruments AR7"
77 select BOOT_ELF32
78 select DMA_NONCOHERENT
79 select CEVT_R4K
80 select CSRC_R4K
81 select IRQ_CPU
82 select NO_EXCEPT_FILL
83 select SWAP_IO_SPACE
84 select SYS_HAS_CPU_MIPS32_R1
85 select SYS_HAS_EARLY_PRINTK
86 select SYS_SUPPORTS_32BIT_KERNEL
87 select SYS_SUPPORTS_LITTLE_ENDIAN
88 select SYS_SUPPORTS_ZBOOT_UART16550
89 select ARCH_REQUIRE_GPIOLIB
90 select VLYNQ
91 select HAVE_CLK
92 help
93 Support for the Texas Instruments AR7 System-on-a-Chip
94 family: TNETD7100, 7200 and 7300.
95
96 config ATH79
97 bool "Atheros AR71XX/AR724X/AR913X based boards"
98 select ARCH_REQUIRE_GPIOLIB
99 select BOOT_RAW
100 select CEVT_R4K
101 select CSRC_R4K
102 select DMA_NONCOHERENT
103 select HAVE_CLK
104 select CLKDEV_LOOKUP
105 select IRQ_CPU
106 select MIPS_MACHINE
107 select SYS_HAS_CPU_MIPS32_R2
108 select SYS_HAS_EARLY_PRINTK
109 select SYS_SUPPORTS_32BIT_KERNEL
110 select SYS_SUPPORTS_BIG_ENDIAN
111 help
112 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
113
114 config BCM47XX
115 bool "Broadcom BCM47XX based boards"
116 select ARCH_WANT_OPTIONAL_GPIOLIB
117 select BOOT_RAW
118 select CEVT_R4K
119 select CSRC_R4K
120 select DMA_NONCOHERENT
121 select HW_HAS_PCI
122 select IRQ_CPU
123 select SYS_HAS_CPU_MIPS32_R1
124 select NO_EXCEPT_FILL
125 select SYS_SUPPORTS_32BIT_KERNEL
126 select SYS_SUPPORTS_LITTLE_ENDIAN
127 select SYS_HAS_EARLY_PRINTK
128 select USE_GENERIC_EARLY_PRINTK_8250
129 help
130 Support for BCM47XX based boards
131
132 config BCM63XX
133 bool "Broadcom BCM63XX based boards"
134 select BOOT_RAW
135 select CEVT_R4K
136 select CSRC_R4K
137 select DMA_NONCOHERENT
138 select IRQ_CPU
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 select MIPS_L1_CACHE_SHIFT_4
146 help
147 Support for BCM63XX based boards
148
149 config MIPS_COBALT
150 bool "Cobalt Server"
151 select CEVT_R4K
152 select CSRC_R4K
153 select CEVT_GT641XX
154 select DMA_NONCOHERENT
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 select USE_GENERIC_EARLY_PRINTK_8250
168
169 config MACH_DECSTATION
170 bool "DECstations"
171 select BOOT_ELF32
172 select CEVT_DS1287
173 select CEVT_R4K
174 select CSRC_IOASIC
175 select CSRC_R4K
176 select CPU_DADDI_WORKAROUNDS if 64BIT
177 select CPU_R4000_WORKAROUNDS if 64BIT
178 select CPU_R4400_WORKAROUNDS if 64BIT
179 select DMA_NONCOHERENT
180 select NO_IOPORT
181 select IRQ_CPU
182 select SYS_HAS_CPU_R3000
183 select SYS_HAS_CPU_R4X00
184 select SYS_SUPPORTS_32BIT_KERNEL
185 select SYS_SUPPORTS_64BIT_KERNEL
186 select SYS_SUPPORTS_LITTLE_ENDIAN
187 select SYS_SUPPORTS_128HZ
188 select SYS_SUPPORTS_256HZ
189 select SYS_SUPPORTS_1024HZ
190 select MIPS_L1_CACHE_SHIFT_4
191 help
192 This enables support for DEC's MIPS based workstations. For details
193 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
194 DECstation porting pages on <http://decstation.unix-ag.org/>.
195
196 If you have one of the following DECstation Models you definitely
197 want to choose R4xx0 for the CPU Type:
198
199 DECstation 5000/50
200 DECstation 5000/150
201 DECstation 5000/260
202 DECsystem 5900/260
203
204 otherwise choose R3000.
205
206 config MACH_JAZZ
207 bool "Jazz family of machines"
208 select FW_ARC
209 select FW_ARC32
210 select ARCH_MAY_HAVE_PC_FDC
211 select CEVT_R4K
212 select CSRC_R4K
213 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
214 select GENERIC_ISA_DMA
215 select HAVE_PCSPKR_PLATFORM
216 select IRQ_CPU
217 select I8253
218 select I8259
219 select ISA
220 select SYS_HAS_CPU_R4X00
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_64BIT_KERNEL
223 select SYS_SUPPORTS_100HZ
224 help
225 This a family of machines based on the MIPS R4030 chipset which was
226 used by several vendors to build RISC/os and Windows NT workstations.
227 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
228 Olivetti M700-10 workstations.
229
230 config MACH_JZ4740
231 bool "Ingenic JZ4740 based machines"
232 select SYS_HAS_CPU_MIPS32_R1
233 select SYS_SUPPORTS_32BIT_KERNEL
234 select SYS_SUPPORTS_LITTLE_ENDIAN
235 select SYS_SUPPORTS_ZBOOT_UART16550
236 select DMA_NONCOHERENT
237 select IRQ_CPU
238 select ARCH_REQUIRE_GPIOLIB
239 select SYS_HAS_EARLY_PRINTK
240 select HAVE_CLK
241 select GENERIC_IRQ_CHIP
242
243 config LANTIQ
244 bool "Lantiq based platforms"
245 select DMA_NONCOHERENT
246 select IRQ_CPU
247 select CEVT_R4K
248 select CSRC_R4K
249 select SYS_HAS_CPU_MIPS32_R1
250 select SYS_HAS_CPU_MIPS32_R2
251 select SYS_SUPPORTS_BIG_ENDIAN
252 select SYS_SUPPORTS_32BIT_KERNEL
253 select SYS_SUPPORTS_MULTITHREADING
254 select SYS_HAS_EARLY_PRINTK
255 select ARCH_REQUIRE_GPIOLIB
256 select SWAP_IO_SPACE
257 select BOOT_RAW
258 select HAVE_MACH_CLKDEV
259 select CLKDEV_LOOKUP
260 select USE_OF
261 select PINCTRL
262 select PINCTRL_LANTIQ
263
264 config LASAT
265 bool "LASAT Networks platforms"
266 select CEVT_R4K
267 select CSRC_R4K
268 select DMA_NONCOHERENT
269 select SYS_HAS_EARLY_PRINTK
270 select HW_HAS_PCI
271 select IRQ_CPU
272 select PCI_GT64XXX_PCI0
273 select MIPS_NILE4
274 select R5000_CPU_SCACHE
275 select SYS_HAS_CPU_R5000
276 select SYS_SUPPORTS_32BIT_KERNEL
277 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
278 select SYS_SUPPORTS_LITTLE_ENDIAN
279
280 config MACH_LOONGSON
281 bool "Loongson family of machines"
282 select SYS_SUPPORTS_ZBOOT
283 help
284 This enables the support of Loongson family of machines.
285
286 Loongson is a family of general-purpose MIPS-compatible CPUs.
287 developed at Institute of Computing Technology (ICT),
288 Chinese Academy of Sciences (CAS) in the People's Republic
289 of China. The chief architect is Professor Weiwu Hu.
290
291 config MACH_LOONGSON1
292 bool "Loongson 1 family of machines"
293 select SYS_SUPPORTS_ZBOOT
294 help
295 This enables support for the Loongson 1 based machines.
296
297 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
298 the ICT (Institute of Computing Technology) and the Chinese Academy
299 of Sciences.
300
301 config MIPS_MALTA
302 bool "MIPS Malta board"
303 select ARCH_MAY_HAVE_PC_FDC
304 select BOOT_ELF32
305 select BOOT_RAW
306 select CEVT_R4K
307 select CSRC_R4K
308 select CSRC_GIC
309 select DMA_MAYBE_COHERENT
310 select GENERIC_ISA_DMA
311 select HAVE_PCSPKR_PLATFORM
312 select IRQ_CPU
313 select IRQ_GIC
314 select HW_HAS_PCI
315 select I8253
316 select I8259
317 select MIPS_BONITO64
318 select MIPS_CPU_SCACHE
319 select PCI_GT64XXX_PCI0
320 select MIPS_MSC
321 select SWAP_IO_SPACE
322 select SYS_HAS_CPU_MIPS32_R1
323 select SYS_HAS_CPU_MIPS32_R2
324 select SYS_HAS_CPU_MIPS32_R3_5
325 select SYS_HAS_CPU_MIPS64_R1
326 select SYS_HAS_CPU_MIPS64_R2
327 select SYS_HAS_CPU_NEVADA
328 select SYS_HAS_CPU_RM7000
329 select SYS_SUPPORTS_32BIT_KERNEL
330 select SYS_SUPPORTS_64BIT_KERNEL
331 select SYS_SUPPORTS_BIG_ENDIAN
332 select SYS_SUPPORTS_LITTLE_ENDIAN
333 select SYS_SUPPORTS_MIPS_CMP
334 select SYS_SUPPORTS_MIPS_CPS
335 select SYS_SUPPORTS_MULTITHREADING
336 select SYS_SUPPORTS_SMARTMIPS
337 select SYS_SUPPORTS_ZBOOT
338 help
339 This enables support for the MIPS Technologies Malta evaluation
340 board.
341
342 config MIPS_SEAD3
343 bool "MIPS SEAD3 board"
344 select BOOT_ELF32
345 select BOOT_RAW
346 select CEVT_R4K
347 select CSRC_R4K
348 select CSRC_GIC
349 select CPU_MIPSR2_IRQ_VI
350 select CPU_MIPSR2_IRQ_EI
351 select DMA_NONCOHERENT
352 select IRQ_CPU
353 select IRQ_GIC
354 select LIBFDT
355 select MIPS_MSC
356 select SYS_HAS_CPU_MIPS32_R1
357 select SYS_HAS_CPU_MIPS32_R2
358 select SYS_HAS_CPU_MIPS64_R1
359 select SYS_HAS_EARLY_PRINTK
360 select SYS_SUPPORTS_32BIT_KERNEL
361 select SYS_SUPPORTS_64BIT_KERNEL
362 select SYS_SUPPORTS_BIG_ENDIAN
363 select SYS_SUPPORTS_LITTLE_ENDIAN
364 select SYS_SUPPORTS_SMARTMIPS
365 select SYS_SUPPORTS_MICROMIPS
366 select USB_ARCH_HAS_EHCI
367 select USB_EHCI_BIG_ENDIAN_DESC
368 select USB_EHCI_BIG_ENDIAN_MMIO
369 select USE_OF
370 help
371 This enables support for the MIPS Technologies SEAD3 evaluation
372 board.
373
374 config NEC_MARKEINS
375 bool "NEC EMMA2RH Mark-eins board"
376 select SOC_EMMA2RH
377 select HW_HAS_PCI
378 help
379 This enables support for the NEC Electronics Mark-eins boards.
380
381 config MACH_VR41XX
382 bool "NEC VR4100 series based machines"
383 select CEVT_R4K
384 select CSRC_R4K
385 select SYS_HAS_CPU_VR41XX
386 select ARCH_REQUIRE_GPIOLIB
387
388 config NXP_STB220
389 bool "NXP STB220 board"
390 select SOC_PNX833X
391 help
392 Support for NXP Semiconductors STB220 Development Board.
393
394 config NXP_STB225
395 bool "NXP 225 board"
396 select SOC_PNX833X
397 select SOC_PNX8335
398 help
399 Support for NXP Semiconductors STB225 Development Board.
400
401 config PMC_MSP
402 bool "PMC-Sierra MSP chipsets"
403 select CEVT_R4K
404 select CSRC_R4K
405 select DMA_NONCOHERENT
406 select SWAP_IO_SPACE
407 select NO_EXCEPT_FILL
408 select BOOT_RAW
409 select SYS_HAS_CPU_MIPS32_R1
410 select SYS_HAS_CPU_MIPS32_R2
411 select SYS_SUPPORTS_32BIT_KERNEL
412 select SYS_SUPPORTS_BIG_ENDIAN
413 select IRQ_CPU
414 select SERIAL_8250
415 select SERIAL_8250_CONSOLE
416 select USB_EHCI_BIG_ENDIAN_MMIO
417 select USB_EHCI_BIG_ENDIAN_DESC
418 help
419 This adds support for the PMC-Sierra family of Multi-Service
420 Processor System-On-A-Chips. These parts include a number
421 of integrated peripherals, interfaces and DSPs in addition to
422 a variety of MIPS cores.
423
424 config RALINK
425 bool "Ralink based machines"
426 select CEVT_R4K
427 select CSRC_R4K
428 select BOOT_RAW
429 select DMA_NONCOHERENT
430 select IRQ_CPU
431 select USE_OF
432 select SYS_HAS_CPU_MIPS32_R1
433 select SYS_HAS_CPU_MIPS32_R2
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_LITTLE_ENDIAN
436 select SYS_HAS_EARLY_PRINTK
437 select HAVE_MACH_CLKDEV
438 select CLKDEV_LOOKUP
439 select ARCH_HAS_RESET_CONTROLLER
440 select RESET_CONTROLLER
441
442 config SGI_IP22
443 bool "SGI IP22 (Indy/Indigo2)"
444 select FW_ARC
445 select FW_ARC32
446 select BOOT_ELF32
447 select CEVT_R4K
448 select CSRC_R4K
449 select DEFAULT_SGI_PARTITION
450 select DMA_NONCOHERENT
451 select HW_HAS_EISA
452 select I8253
453 select I8259
454 select IP22_CPU_SCACHE
455 select IRQ_CPU
456 select GENERIC_ISA_DMA_SUPPORT_BROKEN
457 select SGI_HAS_I8042
458 select SGI_HAS_INDYDOG
459 select SGI_HAS_HAL2
460 select SGI_HAS_SEEQ
461 select SGI_HAS_WD93
462 select SGI_HAS_ZILOG
463 select SWAP_IO_SPACE
464 select SYS_HAS_CPU_R4X00
465 select SYS_HAS_CPU_R5000
466 #
467 # Disable EARLY_PRINTK for now since it leads to overwritten prom
468 # memory during early boot on some machines.
469 #
470 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
471 # for a more details discussion
472 #
473 # select SYS_HAS_EARLY_PRINTK
474 select SYS_SUPPORTS_32BIT_KERNEL
475 select SYS_SUPPORTS_64BIT_KERNEL
476 select SYS_SUPPORTS_BIG_ENDIAN
477 select MIPS_L1_CACHE_SHIFT_7
478 help
479 This are the SGI Indy, Challenge S and Indigo2, as well as certain
480 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
481 that runs on these, say Y here.
482
483 config SGI_IP27
484 bool "SGI IP27 (Origin200/2000)"
485 select FW_ARC
486 select FW_ARC64
487 select BOOT_ELF64
488 select DEFAULT_SGI_PARTITION
489 select DMA_COHERENT
490 select SYS_HAS_EARLY_PRINTK
491 select HW_HAS_PCI
492 select NR_CPUS_DEFAULT_64
493 select SYS_HAS_CPU_R10000
494 select SYS_SUPPORTS_64BIT_KERNEL
495 select SYS_SUPPORTS_BIG_ENDIAN
496 select SYS_SUPPORTS_NUMA
497 select SYS_SUPPORTS_SMP
498 select MIPS_L1_CACHE_SHIFT_7
499 help
500 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
501 workstations. To compile a Linux kernel that runs on these, say Y
502 here.
503
504 config SGI_IP28
505 bool "SGI IP28 (Indigo2 R10k)"
506 select FW_ARC
507 select FW_ARC64
508 select BOOT_ELF64
509 select CEVT_R4K
510 select CSRC_R4K
511 select DEFAULT_SGI_PARTITION
512 select DMA_NONCOHERENT
513 select GENERIC_ISA_DMA_SUPPORT_BROKEN
514 select IRQ_CPU
515 select HW_HAS_EISA
516 select I8253
517 select I8259
518 select SGI_HAS_I8042
519 select SGI_HAS_INDYDOG
520 select SGI_HAS_HAL2
521 select SGI_HAS_SEEQ
522 select SGI_HAS_WD93
523 select SGI_HAS_ZILOG
524 select SWAP_IO_SPACE
525 select SYS_HAS_CPU_R10000
526 #
527 # Disable EARLY_PRINTK for now since it leads to overwritten prom
528 # memory during early boot on some machines.
529 #
530 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
531 # for a more details discussion
532 #
533 # select SYS_HAS_EARLY_PRINTK
534 select SYS_SUPPORTS_64BIT_KERNEL
535 select SYS_SUPPORTS_BIG_ENDIAN
536 help
537 This is the SGI Indigo2 with R10000 processor. To compile a Linux
538 kernel that runs on these, say Y here.
539
540 config SGI_IP32
541 bool "SGI IP32 (O2)"
542 select FW_ARC
543 select FW_ARC32
544 select BOOT_ELF32
545 select CEVT_R4K
546 select CSRC_R4K
547 select DMA_NONCOHERENT
548 select HW_HAS_PCI
549 select IRQ_CPU
550 select R5000_CPU_SCACHE
551 select RM7000_CPU_SCACHE
552 select SYS_HAS_CPU_R5000
553 select SYS_HAS_CPU_R10000 if BROKEN
554 select SYS_HAS_CPU_RM7000
555 select SYS_HAS_CPU_NEVADA
556 select SYS_SUPPORTS_64BIT_KERNEL
557 select SYS_SUPPORTS_BIG_ENDIAN
558 help
559 If you want this kernel to run on SGI O2 workstation, say Y here.
560
561 config SIBYTE_CRHINE
562 bool "Sibyte BCM91120C-CRhine"
563 select BOOT_ELF32
564 select DMA_COHERENT
565 select SIBYTE_BCM1120
566 select SWAP_IO_SPACE
567 select SYS_HAS_CPU_SB1
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_LITTLE_ENDIAN
570
571 config SIBYTE_CARMEL
572 bool "Sibyte BCM91120x-Carmel"
573 select BOOT_ELF32
574 select DMA_COHERENT
575 select SIBYTE_BCM1120
576 select SWAP_IO_SPACE
577 select SYS_HAS_CPU_SB1
578 select SYS_SUPPORTS_BIG_ENDIAN
579 select SYS_SUPPORTS_LITTLE_ENDIAN
580
581 config SIBYTE_CRHONE
582 bool "Sibyte BCM91125C-CRhone"
583 select BOOT_ELF32
584 select DMA_COHERENT
585 select SIBYTE_BCM1125
586 select SWAP_IO_SPACE
587 select SYS_HAS_CPU_SB1
588 select SYS_SUPPORTS_BIG_ENDIAN
589 select SYS_SUPPORTS_HIGHMEM
590 select SYS_SUPPORTS_LITTLE_ENDIAN
591
592 config SIBYTE_RHONE
593 bool "Sibyte BCM91125E-Rhone"
594 select BOOT_ELF32
595 select DMA_COHERENT
596 select SIBYTE_BCM1125H
597 select SWAP_IO_SPACE
598 select SYS_HAS_CPU_SB1
599 select SYS_SUPPORTS_BIG_ENDIAN
600 select SYS_SUPPORTS_LITTLE_ENDIAN
601
602 config SIBYTE_SWARM
603 bool "Sibyte BCM91250A-SWARM"
604 select BOOT_ELF32
605 select DMA_COHERENT
606 select HAVE_PATA_PLATFORM
607 select SIBYTE_SB1250
608 select SWAP_IO_SPACE
609 select SYS_HAS_CPU_SB1
610 select SYS_SUPPORTS_BIG_ENDIAN
611 select SYS_SUPPORTS_HIGHMEM
612 select SYS_SUPPORTS_LITTLE_ENDIAN
613 select ZONE_DMA32 if 64BIT
614
615 config SIBYTE_LITTLESUR
616 bool "Sibyte BCM91250C2-LittleSur"
617 select BOOT_ELF32
618 select DMA_COHERENT
619 select HAVE_PATA_PLATFORM
620 select SIBYTE_SB1250
621 select SWAP_IO_SPACE
622 select SYS_HAS_CPU_SB1
623 select SYS_SUPPORTS_BIG_ENDIAN
624 select SYS_SUPPORTS_HIGHMEM
625 select SYS_SUPPORTS_LITTLE_ENDIAN
626
627 config SIBYTE_SENTOSA
628 bool "Sibyte BCM91250E-Sentosa"
629 select BOOT_ELF32
630 select DMA_COHERENT
631 select SIBYTE_SB1250
632 select SWAP_IO_SPACE
633 select SYS_HAS_CPU_SB1
634 select SYS_SUPPORTS_BIG_ENDIAN
635 select SYS_SUPPORTS_LITTLE_ENDIAN
636
637 config SIBYTE_BIGSUR
638 bool "Sibyte BCM91480B-BigSur"
639 select BOOT_ELF32
640 select DMA_COHERENT
641 select NR_CPUS_DEFAULT_4
642 select SIBYTE_BCM1x80
643 select SWAP_IO_SPACE
644 select SYS_HAS_CPU_SB1
645 select SYS_SUPPORTS_BIG_ENDIAN
646 select SYS_SUPPORTS_HIGHMEM
647 select SYS_SUPPORTS_LITTLE_ENDIAN
648 select ZONE_DMA32 if 64BIT
649
650 config SNI_RM
651 bool "SNI RM200/300/400"
652 select FW_ARC if CPU_LITTLE_ENDIAN
653 select FW_ARC32 if CPU_LITTLE_ENDIAN
654 select FW_SNIPROM if CPU_BIG_ENDIAN
655 select ARCH_MAY_HAVE_PC_FDC
656 select BOOT_ELF32
657 select CEVT_R4K
658 select CSRC_R4K
659 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
660 select DMA_NONCOHERENT
661 select GENERIC_ISA_DMA
662 select HAVE_PCSPKR_PLATFORM
663 select HW_HAS_EISA
664 select HW_HAS_PCI
665 select IRQ_CPU
666 select I8253
667 select I8259
668 select ISA
669 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
670 select SYS_HAS_CPU_R4X00
671 select SYS_HAS_CPU_R5000
672 select SYS_HAS_CPU_R10000
673 select R5000_CPU_SCACHE
674 select SYS_HAS_EARLY_PRINTK
675 select SYS_SUPPORTS_32BIT_KERNEL
676 select SYS_SUPPORTS_64BIT_KERNEL
677 select SYS_SUPPORTS_BIG_ENDIAN
678 select SYS_SUPPORTS_HIGHMEM
679 select SYS_SUPPORTS_LITTLE_ENDIAN
680 select USE_GENERIC_EARLY_PRINTK_8250
681 help
682 The SNI RM200/300/400 are MIPS-based machines manufactured by
683 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
684 Technology and now in turn merged with Fujitsu. Say Y here to
685 support this machine type.
686
687 config MACH_TX39XX
688 bool "Toshiba TX39 series based machines"
689
690 config MACH_TX49XX
691 bool "Toshiba TX49 series based machines"
692
693 config MIKROTIK_RB532
694 bool "Mikrotik RB532 boards"
695 select CEVT_R4K
696 select CSRC_R4K
697 select DMA_NONCOHERENT
698 select HW_HAS_PCI
699 select IRQ_CPU
700 select SYS_HAS_CPU_MIPS32_R1
701 select SYS_SUPPORTS_32BIT_KERNEL
702 select SYS_SUPPORTS_LITTLE_ENDIAN
703 select SWAP_IO_SPACE
704 select BOOT_RAW
705 select ARCH_REQUIRE_GPIOLIB
706 select MIPS_L1_CACHE_SHIFT_4
707 help
708 Support the Mikrotik(tm) RouterBoard 532 series,
709 based on the IDT RC32434 SoC.
710
711 config CAVIUM_OCTEON_SOC
712 bool "Cavium Networks Octeon SoC based boards"
713 select CEVT_R4K
714 select 64BIT_PHYS_ADDR
715 select DMA_COHERENT
716 select SYS_SUPPORTS_64BIT_KERNEL
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select EDAC_SUPPORT
719 select SYS_SUPPORTS_HOTPLUG_CPU
720 select SYS_HAS_EARLY_PRINTK
721 select SYS_HAS_CPU_CAVIUM_OCTEON
722 select SWAP_IO_SPACE
723 select HW_HAS_PCI
724 select ZONE_DMA32
725 select USB_ARCH_HAS_OHCI
726 select USB_ARCH_HAS_EHCI
727 select HOLES_IN_ZONE
728 select ARCH_REQUIRE_GPIOLIB
729 help
730 This option supports all of the Octeon reference boards from Cavium
731 Networks. It builds a kernel that dynamically determines the Octeon
732 CPU type and supports all known board reference implementations.
733 Some of the supported boards are:
734 EBT3000
735 EBH3000
736 EBH3100
737 Thunder
738 Kodama
739 Hikari
740 Say Y here for most Octeon reference boards.
741
742 config NLM_XLR_BOARD
743 bool "Netlogic XLR/XLS based systems"
744 select BOOT_ELF32
745 select NLM_COMMON
746 select SYS_HAS_CPU_XLR
747 select SYS_SUPPORTS_SMP
748 select HW_HAS_PCI
749 select SWAP_IO_SPACE
750 select SYS_SUPPORTS_32BIT_KERNEL
751 select SYS_SUPPORTS_64BIT_KERNEL
752 select 64BIT_PHYS_ADDR
753 select SYS_SUPPORTS_BIG_ENDIAN
754 select SYS_SUPPORTS_HIGHMEM
755 select DMA_COHERENT
756 select NR_CPUS_DEFAULT_32
757 select CEVT_R4K
758 select CSRC_R4K
759 select IRQ_CPU
760 select ZONE_DMA32 if 64BIT
761 select SYNC_R4K
762 select SYS_HAS_EARLY_PRINTK
763 select USB_ARCH_HAS_OHCI if USB_SUPPORT
764 select USB_ARCH_HAS_EHCI if USB_SUPPORT
765 select SYS_SUPPORTS_ZBOOT
766 select SYS_SUPPORTS_ZBOOT_UART16550
767 help
768 Support for systems based on Netlogic XLR and XLS processors.
769 Say Y here if you have a XLR or XLS based board.
770
771 config NLM_XLP_BOARD
772 bool "Netlogic XLP based systems"
773 select BOOT_ELF32
774 select NLM_COMMON
775 select SYS_HAS_CPU_XLP
776 select SYS_SUPPORTS_SMP
777 select HW_HAS_PCI
778 select SYS_SUPPORTS_32BIT_KERNEL
779 select SYS_SUPPORTS_64BIT_KERNEL
780 select 64BIT_PHYS_ADDR
781 select SYS_SUPPORTS_BIG_ENDIAN
782 select SYS_SUPPORTS_LITTLE_ENDIAN
783 select SYS_SUPPORTS_HIGHMEM
784 select DMA_COHERENT
785 select NR_CPUS_DEFAULT_32
786 select CEVT_R4K
787 select CSRC_R4K
788 select IRQ_CPU
789 select ZONE_DMA32 if 64BIT
790 select SYNC_R4K
791 select SYS_HAS_EARLY_PRINTK
792 select USE_OF
793 select SYS_SUPPORTS_ZBOOT
794 select SYS_SUPPORTS_ZBOOT_UART16550
795 help
796 This board is based on Netlogic XLP Processor.
797 Say Y here if you have a XLP based board.
798
799 endchoice
800
801 source "arch/mips/alchemy/Kconfig"
802 source "arch/mips/ath79/Kconfig"
803 source "arch/mips/bcm47xx/Kconfig"
804 source "arch/mips/bcm63xx/Kconfig"
805 source "arch/mips/jazz/Kconfig"
806 source "arch/mips/jz4740/Kconfig"
807 source "arch/mips/lantiq/Kconfig"
808 source "arch/mips/lasat/Kconfig"
809 source "arch/mips/pmcs-msp71xx/Kconfig"
810 source "arch/mips/ralink/Kconfig"
811 source "arch/mips/sgi-ip27/Kconfig"
812 source "arch/mips/sibyte/Kconfig"
813 source "arch/mips/txx9/Kconfig"
814 source "arch/mips/vr41xx/Kconfig"
815 source "arch/mips/cavium-octeon/Kconfig"
816 source "arch/mips/loongson/Kconfig"
817 source "arch/mips/loongson1/Kconfig"
818 source "arch/mips/netlogic/Kconfig"
819
820 endmenu
821
822 config RWSEM_GENERIC_SPINLOCK
823 bool
824 default y
825
826 config RWSEM_XCHGADD_ALGORITHM
827 bool
828
829 config ARCH_HAS_ILOG2_U32
830 bool
831 default n
832
833 config ARCH_HAS_ILOG2_U64
834 bool
835 default n
836
837 config GENERIC_HWEIGHT
838 bool
839 default y
840
841 config GENERIC_CALIBRATE_DELAY
842 bool
843 default y
844
845 config SCHED_OMIT_FRAME_POINTER
846 bool
847 default y
848
849 #
850 # Select some configuration options automatically based on user selections.
851 #
852 config FW_ARC
853 bool
854
855 config ARCH_MAY_HAVE_PC_FDC
856 bool
857
858 config BOOT_RAW
859 bool
860
861 config CEVT_BCM1480
862 bool
863
864 config CEVT_DS1287
865 bool
866
867 config CEVT_GT641XX
868 bool
869
870 config CEVT_R4K
871 bool
872
873 config CEVT_GIC
874 select MIPS_CM
875 bool
876
877 config CEVT_SB1250
878 bool
879
880 config CEVT_TXX9
881 bool
882
883 config CSRC_BCM1480
884 bool
885
886 config CSRC_IOASIC
887 bool
888
889 config CSRC_R4K
890 bool
891
892 config CSRC_GIC
893 select MIPS_CM
894 bool
895
896 config CSRC_SB1250
897 bool
898
899 config GPIO_TXX9
900 select ARCH_REQUIRE_GPIOLIB
901 bool
902
903 config FW_CFE
904 bool
905
906 config ARCH_DMA_ADDR_T_64BIT
907 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
908
909 config DMA_MAYBE_COHERENT
910 select DMA_NONCOHERENT
911 bool
912
913 config DMA_COHERENT
914 bool
915
916 config DMA_NONCOHERENT
917 bool
918 select NEED_DMA_MAP_STATE
919
920 config NEED_DMA_MAP_STATE
921 bool
922
923 config SYS_HAS_EARLY_PRINTK
924 bool
925
926 config HOTPLUG_CPU
927 bool "Support for hot-pluggable CPUs"
928 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
929 help
930 Say Y here to allow turning CPUs off and on. CPUs can be
931 controlled through /sys/devices/system/cpu.
932 (Note: power management support will enable this option
933 automatically on SMP systems. )
934 Say N if you want to disable CPU hotplug.
935
936 config SYS_SUPPORTS_HOTPLUG_CPU
937 bool
938
939 config I8259
940 bool
941
942 config MIPS_BONITO64
943 bool
944
945 config MIPS_MSC
946 bool
947
948 config MIPS_NILE4
949 bool
950
951 config SYNC_R4K
952 bool
953
954 config MIPS_MACHINE
955 def_bool n
956
957 config NO_IOPORT
958 def_bool n
959
960 config GENERIC_ISA_DMA
961 bool
962 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
963 select ISA_DMA_API
964
965 config GENERIC_ISA_DMA_SUPPORT_BROKEN
966 bool
967 select GENERIC_ISA_DMA
968
969 config ISA_DMA_API
970 bool
971
972 config HOLES_IN_ZONE
973 bool
974
975 #
976 # Endianness selection. Sufficiently obscure so many users don't know what to
977 # answer,so we try hard to limit the available choices. Also the use of a
978 # choice statement should be more obvious to the user.
979 #
980 choice
981 prompt "Endianness selection"
982 help
983 Some MIPS machines can be configured for either little or big endian
984 byte order. These modes require different kernels and a different
985 Linux distribution. In general there is one preferred byteorder for a
986 particular system but some systems are just as commonly used in the
987 one or the other endianness.
988
989 config CPU_BIG_ENDIAN
990 bool "Big endian"
991 depends on SYS_SUPPORTS_BIG_ENDIAN
992
993 config CPU_LITTLE_ENDIAN
994 bool "Little endian"
995 depends on SYS_SUPPORTS_LITTLE_ENDIAN
996
997 endchoice
998
999 config EXPORT_UASM
1000 bool
1001
1002 config SYS_SUPPORTS_APM_EMULATION
1003 bool
1004
1005 config SYS_SUPPORTS_BIG_ENDIAN
1006 bool
1007
1008 config SYS_SUPPORTS_LITTLE_ENDIAN
1009 bool
1010
1011 config SYS_SUPPORTS_HUGETLBFS
1012 bool
1013 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1014 default y
1015
1016 config MIPS_HUGE_TLB_SUPPORT
1017 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1018
1019 config IRQ_CPU
1020 bool
1021
1022 config IRQ_CPU_RM7K
1023 bool
1024
1025 config IRQ_MSP_SLP
1026 bool
1027
1028 config IRQ_MSP_CIC
1029 bool
1030
1031 config IRQ_TXX9
1032 bool
1033
1034 config IRQ_GT641XX
1035 bool
1036
1037 config IRQ_GIC
1038 select MIPS_CM
1039 bool
1040
1041 config PCI_GT64XXX_PCI0
1042 bool
1043
1044 config NO_EXCEPT_FILL
1045 bool
1046
1047 config SOC_EMMA2RH
1048 bool
1049 select CEVT_R4K
1050 select CSRC_R4K
1051 select DMA_NONCOHERENT
1052 select IRQ_CPU
1053 select SWAP_IO_SPACE
1054 select SYS_HAS_CPU_R5500
1055 select SYS_SUPPORTS_32BIT_KERNEL
1056 select SYS_SUPPORTS_64BIT_KERNEL
1057 select SYS_SUPPORTS_BIG_ENDIAN
1058
1059 config SOC_PNX833X
1060 bool
1061 select CEVT_R4K
1062 select CSRC_R4K
1063 select IRQ_CPU
1064 select DMA_NONCOHERENT
1065 select SYS_HAS_CPU_MIPS32_R2
1066 select SYS_SUPPORTS_32BIT_KERNEL
1067 select SYS_SUPPORTS_LITTLE_ENDIAN
1068 select SYS_SUPPORTS_BIG_ENDIAN
1069 select CPU_MIPSR2_IRQ_VI
1070
1071 config SOC_PNX8335
1072 bool
1073 select SOC_PNX833X
1074
1075 config SWAP_IO_SPACE
1076 bool
1077
1078 config SGI_HAS_INDYDOG
1079 bool
1080
1081 config SGI_HAS_HAL2
1082 bool
1083
1084 config SGI_HAS_SEEQ
1085 bool
1086
1087 config SGI_HAS_WD93
1088 bool
1089
1090 config SGI_HAS_ZILOG
1091 bool
1092
1093 config SGI_HAS_I8042
1094 bool
1095
1096 config DEFAULT_SGI_PARTITION
1097 bool
1098
1099 config FW_ARC32
1100 bool
1101
1102 config FW_SNIPROM
1103 bool
1104
1105 config BOOT_ELF32
1106 bool
1107
1108 config MIPS_L1_CACHE_SHIFT_4
1109 bool
1110
1111 config MIPS_L1_CACHE_SHIFT_5
1112 bool
1113
1114 config MIPS_L1_CACHE_SHIFT_6
1115 bool
1116
1117 config MIPS_L1_CACHE_SHIFT_7
1118 bool
1119
1120 config MIPS_L1_CACHE_SHIFT
1121 int
1122 default "4" if MIPS_L1_CACHE_SHIFT_4
1123 default "5" if MIPS_L1_CACHE_SHIFT_5
1124 default "6" if MIPS_L1_CACHE_SHIFT_6
1125 default "7" if MIPS_L1_CACHE_SHIFT_7
1126 default "5"
1127
1128 config HAVE_STD_PC_SERIAL_PORT
1129 bool
1130
1131 config ARC_CONSOLE
1132 bool "ARC console support"
1133 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1134
1135 config ARC_MEMORY
1136 bool
1137 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1138 default y
1139
1140 config ARC_PROMLIB
1141 bool
1142 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1143 default y
1144
1145 config FW_ARC64
1146 bool
1147
1148 config BOOT_ELF64
1149 bool
1150
1151 menu "CPU selection"
1152
1153 choice
1154 prompt "CPU type"
1155 default CPU_R4X00
1156
1157 config CPU_LOONGSON3
1158 bool "Loongson 3 CPU"
1159 depends on SYS_HAS_CPU_LOONGSON3
1160 select CPU_SUPPORTS_64BIT_KERNEL
1161 select CPU_SUPPORTS_HIGHMEM
1162 select CPU_SUPPORTS_HUGEPAGES
1163 select WEAK_ORDERING
1164 select WEAK_REORDERING_BEYOND_LLSC
1165 help
1166 The Loongson 3 processor implements the MIPS64R2 instruction
1167 set with many extensions.
1168
1169 config CPU_LOONGSON2E
1170 bool "Loongson 2E"
1171 depends on SYS_HAS_CPU_LOONGSON2E
1172 select CPU_LOONGSON2
1173 help
1174 The Loongson 2E processor implements the MIPS III instruction set
1175 with many extensions.
1176
1177 It has an internal FPGA northbridge, which is compatible to
1178 bonito64.
1179
1180 config CPU_LOONGSON2F
1181 bool "Loongson 2F"
1182 depends on SYS_HAS_CPU_LOONGSON2F
1183 select CPU_LOONGSON2
1184 select ARCH_REQUIRE_GPIOLIB
1185 help
1186 The Loongson 2F processor implements the MIPS III instruction set
1187 with many extensions.
1188
1189 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1190 have a similar programming interface with FPGA northbridge used in
1191 Loongson2E.
1192
1193 config CPU_LOONGSON1B
1194 bool "Loongson 1B"
1195 depends on SYS_HAS_CPU_LOONGSON1B
1196 select CPU_LOONGSON1
1197 help
1198 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1199 release 2 instruction set.
1200
1201 config CPU_MIPS32_R1
1202 bool "MIPS32 Release 1"
1203 depends on SYS_HAS_CPU_MIPS32_R1
1204 select CPU_HAS_PREFETCH
1205 select CPU_SUPPORTS_32BIT_KERNEL
1206 select CPU_SUPPORTS_HIGHMEM
1207 help
1208 Choose this option to build a kernel for release 1 or later of the
1209 MIPS32 architecture. Most modern embedded systems with a 32-bit
1210 MIPS processor are based on a MIPS32 processor. If you know the
1211 specific type of processor in your system, choose those that one
1212 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1213 Release 2 of the MIPS32 architecture is available since several
1214 years so chances are you even have a MIPS32 Release 2 processor
1215 in which case you should choose CPU_MIPS32_R2 instead for better
1216 performance.
1217
1218 config CPU_MIPS32_R2
1219 bool "MIPS32 Release 2"
1220 depends on SYS_HAS_CPU_MIPS32_R2
1221 select CPU_HAS_PREFETCH
1222 select CPU_SUPPORTS_32BIT_KERNEL
1223 select CPU_SUPPORTS_HIGHMEM
1224 select CPU_SUPPORTS_MSA
1225 select HAVE_KVM
1226 help
1227 Choose this option to build a kernel for release 2 or later of the
1228 MIPS32 architecture. Most modern embedded systems with a 32-bit
1229 MIPS processor are based on a MIPS32 processor. If you know the
1230 specific type of processor in your system, choose those that one
1231 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1232
1233 config CPU_MIPS64_R1
1234 bool "MIPS64 Release 1"
1235 depends on SYS_HAS_CPU_MIPS64_R1
1236 select CPU_HAS_PREFETCH
1237 select CPU_SUPPORTS_32BIT_KERNEL
1238 select CPU_SUPPORTS_64BIT_KERNEL
1239 select CPU_SUPPORTS_HIGHMEM
1240 select CPU_SUPPORTS_HUGEPAGES
1241 help
1242 Choose this option to build a kernel for release 1 or later of the
1243 MIPS64 architecture. Many modern embedded systems with a 64-bit
1244 MIPS processor are based on a MIPS64 processor. If you know the
1245 specific type of processor in your system, choose those that one
1246 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1247 Release 2 of the MIPS64 architecture is available since several
1248 years so chances are you even have a MIPS64 Release 2 processor
1249 in which case you should choose CPU_MIPS64_R2 instead for better
1250 performance.
1251
1252 config CPU_MIPS64_R2
1253 bool "MIPS64 Release 2"
1254 depends on SYS_HAS_CPU_MIPS64_R2
1255 select CPU_HAS_PREFETCH
1256 select CPU_SUPPORTS_32BIT_KERNEL
1257 select CPU_SUPPORTS_64BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_HUGEPAGES
1260 select CPU_SUPPORTS_MSA
1261 help
1262 Choose this option to build a kernel for release 2 or later of the
1263 MIPS64 architecture. Many modern embedded systems with a 64-bit
1264 MIPS processor are based on a MIPS64 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1267
1268 config CPU_R3000
1269 bool "R3000"
1270 depends on SYS_HAS_CPU_R3000
1271 select CPU_HAS_WB
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_HIGHMEM
1274 help
1275 Please make sure to pick the right CPU type. Linux/MIPS is not
1276 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1277 *not* work on R4000 machines and vice versa. However, since most
1278 of the supported machines have an R4000 (or similar) CPU, R4x00
1279 might be a safe bet. If the resulting kernel does not work,
1280 try to recompile with R3000.
1281
1282 config CPU_TX39XX
1283 bool "R39XX"
1284 depends on SYS_HAS_CPU_TX39XX
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286
1287 config CPU_VR41XX
1288 bool "R41xx"
1289 depends on SYS_HAS_CPU_VR41XX
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_64BIT_KERNEL
1292 help
1293 The options selects support for the NEC VR4100 series of processors.
1294 Only choose this option if you have one of these processors as a
1295 kernel built with this option will not run on any other type of
1296 processor or vice versa.
1297
1298 config CPU_R4300
1299 bool "R4300"
1300 depends on SYS_HAS_CPU_R4300
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1303 help
1304 MIPS Technologies R4300-series processors.
1305
1306 config CPU_R4X00
1307 bool "R4x00"
1308 depends on SYS_HAS_CPU_R4X00
1309 select CPU_SUPPORTS_32BIT_KERNEL
1310 select CPU_SUPPORTS_64BIT_KERNEL
1311 select CPU_SUPPORTS_HUGEPAGES
1312 help
1313 MIPS Technologies R4000-series processors other than 4300, including
1314 the R4000, R4400, R4600, and 4700.
1315
1316 config CPU_TX49XX
1317 bool "R49XX"
1318 depends on SYS_HAS_CPU_TX49XX
1319 select CPU_HAS_PREFETCH
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1323
1324 config CPU_R5000
1325 bool "R5000"
1326 depends on SYS_HAS_CPU_R5000
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1329 select CPU_SUPPORTS_HUGEPAGES
1330 help
1331 MIPS Technologies R5000-series processors other than the Nevada.
1332
1333 config CPU_R5432
1334 bool "R5432"
1335 depends on SYS_HAS_CPU_R5432
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 select CPU_SUPPORTS_HUGEPAGES
1339
1340 config CPU_R5500
1341 bool "R5500"
1342 depends on SYS_HAS_CPU_R5500
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1345 select CPU_SUPPORTS_HUGEPAGES
1346 help
1347 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1348 instruction set.
1349
1350 config CPU_R6000
1351 bool "R6000"
1352 depends on SYS_HAS_CPU_R6000
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 help
1355 MIPS Technologies R6000 and R6000A series processors. Note these
1356 processors are extremely rare and the support for them is incomplete.
1357
1358 config CPU_NEVADA
1359 bool "RM52xx"
1360 depends on SYS_HAS_CPU_NEVADA
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1363 select CPU_SUPPORTS_HUGEPAGES
1364 help
1365 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1366
1367 config CPU_R8000
1368 bool "R8000"
1369 depends on SYS_HAS_CPU_R8000
1370 select CPU_HAS_PREFETCH
1371 select CPU_SUPPORTS_64BIT_KERNEL
1372 help
1373 MIPS Technologies R8000 processors. Note these processors are
1374 uncommon and the support for them is incomplete.
1375
1376 config CPU_R10000
1377 bool "R10000"
1378 depends on SYS_HAS_CPU_R10000
1379 select CPU_HAS_PREFETCH
1380 select CPU_SUPPORTS_32BIT_KERNEL
1381 select CPU_SUPPORTS_64BIT_KERNEL
1382 select CPU_SUPPORTS_HIGHMEM
1383 select CPU_SUPPORTS_HUGEPAGES
1384 help
1385 MIPS Technologies R10000-series processors.
1386
1387 config CPU_RM7000
1388 bool "RM7000"
1389 depends on SYS_HAS_CPU_RM7000
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select CPU_SUPPORTS_HUGEPAGES
1395
1396 config CPU_SB1
1397 bool "SB1"
1398 depends on SYS_HAS_CPU_SB1
1399 select CPU_SUPPORTS_32BIT_KERNEL
1400 select CPU_SUPPORTS_64BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_HUGEPAGES
1403 select WEAK_ORDERING
1404
1405 config CPU_CAVIUM_OCTEON
1406 bool "Cavium Octeon processor"
1407 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1408 select ARCH_SPARSEMEM_ENABLE
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_64BIT_KERNEL
1411 select SYS_SUPPORTS_SMP
1412 select NR_CPUS_DEFAULT_16
1413 select WEAK_ORDERING
1414 select CPU_SUPPORTS_HIGHMEM
1415 select CPU_SUPPORTS_HUGEPAGES
1416 select LIBFDT
1417 select USE_OF
1418 select USB_EHCI_BIG_ENDIAN_MMIO
1419 select MIPS_L1_CACHE_SHIFT_7
1420 help
1421 The Cavium Octeon processor is a highly integrated chip containing
1422 many ethernet hardware widgets for networking tasks. The processor
1423 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1424 Full details can be found at http://www.caviumnetworks.com.
1425
1426 config CPU_BMIPS
1427 bool "Broadcom BMIPS"
1428 depends on SYS_HAS_CPU_BMIPS
1429 select CPU_MIPS32
1430 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1431 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1432 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1433 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select DMA_NONCOHERENT
1436 select IRQ_CPU
1437 select SWAP_IO_SPACE
1438 select WEAK_ORDERING
1439 select CPU_SUPPORTS_HIGHMEM
1440 select CPU_HAS_PREFETCH
1441 help
1442 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1443
1444 config CPU_XLR
1445 bool "Netlogic XLR SoC"
1446 depends on SYS_HAS_CPU_XLR
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select CPU_SUPPORTS_64BIT_KERNEL
1449 select CPU_SUPPORTS_HIGHMEM
1450 select CPU_SUPPORTS_HUGEPAGES
1451 select WEAK_ORDERING
1452 select WEAK_REORDERING_BEYOND_LLSC
1453 help
1454 Netlogic Microsystems XLR/XLS processors.
1455
1456 config CPU_XLP
1457 bool "Netlogic XLP SoC"
1458 depends on SYS_HAS_CPU_XLP
1459 select CPU_SUPPORTS_32BIT_KERNEL
1460 select CPU_SUPPORTS_64BIT_KERNEL
1461 select CPU_SUPPORTS_HIGHMEM
1462 select WEAK_ORDERING
1463 select WEAK_REORDERING_BEYOND_LLSC
1464 select CPU_HAS_PREFETCH
1465 select CPU_MIPSR2
1466 help
1467 Netlogic Microsystems XLP processors.
1468 endchoice
1469
1470 config CPU_MIPS32_3_5_FEATURES
1471 bool "MIPS32 Release 3.5 Features"
1472 depends on SYS_HAS_CPU_MIPS32_R3_5
1473 depends on CPU_MIPS32_R2
1474 help
1475 Choose this option to build a kernel for release 2 or later of the
1476 MIPS32 architecture including features from the 3.5 release such as
1477 support for Enhanced Virtual Addressing (EVA).
1478
1479 config CPU_MIPS32_3_5_EVA
1480 bool "Enhanced Virtual Addressing (EVA)"
1481 depends on CPU_MIPS32_3_5_FEATURES
1482 select EVA
1483 default y
1484 help
1485 Choose this option if you want to enable the Enhanced Virtual
1486 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1487 One of its primary benefits is an increase in the maximum size
1488 of lowmem (up to 3GB). If unsure, say 'N' here.
1489
1490 if CPU_LOONGSON2F
1491 config CPU_NOP_WORKAROUNDS
1492 bool
1493
1494 config CPU_JUMP_WORKAROUNDS
1495 bool
1496
1497 config CPU_LOONGSON2F_WORKAROUNDS
1498 bool "Loongson 2F Workarounds"
1499 default y
1500 select CPU_NOP_WORKAROUNDS
1501 select CPU_JUMP_WORKAROUNDS
1502 help
1503 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1504 require workarounds. Without workarounds the system may hang
1505 unexpectedly. For more information please refer to the gas
1506 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1507
1508 Loongson 2F03 and later have fixed these issues and no workarounds
1509 are needed. The workarounds have no significant side effect on them
1510 but may decrease the performance of the system so this option should
1511 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1512 systems.
1513
1514 If unsure, please say Y.
1515 endif # CPU_LOONGSON2F
1516
1517 config SYS_SUPPORTS_ZBOOT
1518 bool
1519 select HAVE_KERNEL_GZIP
1520 select HAVE_KERNEL_BZIP2
1521 select HAVE_KERNEL_LZ4
1522 select HAVE_KERNEL_LZMA
1523 select HAVE_KERNEL_LZO
1524 select HAVE_KERNEL_XZ
1525
1526 config SYS_SUPPORTS_ZBOOT_UART16550
1527 bool
1528 select SYS_SUPPORTS_ZBOOT
1529
1530 config CPU_LOONGSON2
1531 bool
1532 select CPU_SUPPORTS_32BIT_KERNEL
1533 select CPU_SUPPORTS_64BIT_KERNEL
1534 select CPU_SUPPORTS_HIGHMEM
1535 select CPU_SUPPORTS_HUGEPAGES
1536
1537 config CPU_LOONGSON1
1538 bool
1539 select CPU_MIPS32
1540 select CPU_MIPSR2
1541 select CPU_HAS_PREFETCH
1542 select CPU_SUPPORTS_32BIT_KERNEL
1543 select CPU_SUPPORTS_HIGHMEM
1544
1545 config CPU_BMIPS32_3300
1546 select SMP_UP if SMP
1547 bool
1548
1549 config CPU_BMIPS4350
1550 bool
1551 select SYS_SUPPORTS_SMP
1552 select SYS_SUPPORTS_HOTPLUG_CPU
1553
1554 config CPU_BMIPS4380
1555 bool
1556 select SYS_SUPPORTS_SMP
1557 select SYS_SUPPORTS_HOTPLUG_CPU
1558
1559 config CPU_BMIPS5000
1560 bool
1561 select MIPS_CPU_SCACHE
1562 select SYS_SUPPORTS_SMP
1563 select SYS_SUPPORTS_HOTPLUG_CPU
1564
1565 config SYS_HAS_CPU_LOONGSON3
1566 bool
1567 select CPU_SUPPORTS_CPUFREQ
1568
1569 config SYS_HAS_CPU_LOONGSON2E
1570 bool
1571
1572 config SYS_HAS_CPU_LOONGSON2F
1573 bool
1574 select CPU_SUPPORTS_CPUFREQ
1575 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1576 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1577
1578 config SYS_HAS_CPU_LOONGSON1B
1579 bool
1580
1581 config SYS_HAS_CPU_MIPS32_R1
1582 bool
1583
1584 config SYS_HAS_CPU_MIPS32_R2
1585 bool
1586
1587 config SYS_HAS_CPU_MIPS32_R3_5
1588 bool
1589
1590 config SYS_HAS_CPU_MIPS64_R1
1591 bool
1592
1593 config SYS_HAS_CPU_MIPS64_R2
1594 bool
1595
1596 config SYS_HAS_CPU_R3000
1597 bool
1598
1599 config SYS_HAS_CPU_TX39XX
1600 bool
1601
1602 config SYS_HAS_CPU_VR41XX
1603 bool
1604
1605 config SYS_HAS_CPU_R4300
1606 bool
1607
1608 config SYS_HAS_CPU_R4X00
1609 bool
1610
1611 config SYS_HAS_CPU_TX49XX
1612 bool
1613
1614 config SYS_HAS_CPU_R5000
1615 bool
1616
1617 config SYS_HAS_CPU_R5432
1618 bool
1619
1620 config SYS_HAS_CPU_R5500
1621 bool
1622
1623 config SYS_HAS_CPU_R6000
1624 bool
1625
1626 config SYS_HAS_CPU_NEVADA
1627 bool
1628
1629 config SYS_HAS_CPU_R8000
1630 bool
1631
1632 config SYS_HAS_CPU_R10000
1633 bool
1634
1635 config SYS_HAS_CPU_RM7000
1636 bool
1637
1638 config SYS_HAS_CPU_SB1
1639 bool
1640
1641 config SYS_HAS_CPU_CAVIUM_OCTEON
1642 bool
1643
1644 config SYS_HAS_CPU_BMIPS
1645 bool
1646
1647 config SYS_HAS_CPU_BMIPS32_3300
1648 bool
1649 select SYS_HAS_CPU_BMIPS
1650
1651 config SYS_HAS_CPU_BMIPS4350
1652 bool
1653 select SYS_HAS_CPU_BMIPS
1654
1655 config SYS_HAS_CPU_BMIPS4380
1656 bool
1657 select SYS_HAS_CPU_BMIPS
1658
1659 config SYS_HAS_CPU_BMIPS5000
1660 bool
1661 select SYS_HAS_CPU_BMIPS
1662
1663 config SYS_HAS_CPU_XLR
1664 bool
1665
1666 config SYS_HAS_CPU_XLP
1667 bool
1668
1669 #
1670 # CPU may reorder R->R, R->W, W->R, W->W
1671 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1672 #
1673 config WEAK_ORDERING
1674 bool
1675
1676 #
1677 # CPU may reorder reads and writes beyond LL/SC
1678 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1679 #
1680 config WEAK_REORDERING_BEYOND_LLSC
1681 bool
1682 endmenu
1683
1684 #
1685 # These two indicate any level of the MIPS32 and MIPS64 architecture
1686 #
1687 config CPU_MIPS32
1688 bool
1689 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1690
1691 config CPU_MIPS64
1692 bool
1693 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1694
1695 #
1696 # These two indicate the revision of the architecture, either Release 1 or Release 2
1697 #
1698 config CPU_MIPSR1
1699 bool
1700 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1701
1702 config CPU_MIPSR2
1703 bool
1704 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1705
1706 config EVA
1707 bool
1708
1709 config SYS_SUPPORTS_32BIT_KERNEL
1710 bool
1711 config SYS_SUPPORTS_64BIT_KERNEL
1712 bool
1713 config CPU_SUPPORTS_32BIT_KERNEL
1714 bool
1715 config CPU_SUPPORTS_64BIT_KERNEL
1716 bool
1717 config CPU_SUPPORTS_CPUFREQ
1718 bool
1719 config CPU_SUPPORTS_ADDRWINCFG
1720 bool
1721 config CPU_SUPPORTS_HUGEPAGES
1722 bool
1723 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1724 bool
1725 config MIPS_PGD_C0_CONTEXT
1726 bool
1727 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1728
1729 #
1730 # Set to y for ptrace access to watch registers.
1731 #
1732 config HARDWARE_WATCHPOINTS
1733 bool
1734 default y if CPU_MIPSR1 || CPU_MIPSR2
1735
1736 menu "Kernel type"
1737
1738 choice
1739 prompt "Kernel code model"
1740 help
1741 You should only select this option if you have a workload that
1742 actually benefits from 64-bit processing or if your machine has
1743 large memory. You will only be presented a single option in this
1744 menu if your system does not support both 32-bit and 64-bit kernels.
1745
1746 config 32BIT
1747 bool "32-bit kernel"
1748 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1749 select TRAD_SIGNALS
1750 help
1751 Select this option if you want to build a 32-bit kernel.
1752 config 64BIT
1753 bool "64-bit kernel"
1754 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1755 help
1756 Select this option if you want to build a 64-bit kernel.
1757
1758 endchoice
1759
1760 config KVM_GUEST
1761 bool "KVM Guest Kernel"
1762 depends on BROKEN_ON_SMP
1763 help
1764 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1765
1766 config KVM_HOST_FREQ
1767 int "KVM Host Processor Frequency (MHz)"
1768 depends on KVM_GUEST
1769 default 500
1770 help
1771 Select this option if building a guest kernel for KVM to skip
1772 RTC emulation when determining guest CPU Frequency. Instead, the guest
1773 processor frequency is automatically derived from the host frequency.
1774
1775 choice
1776 prompt "Kernel page size"
1777 default PAGE_SIZE_4KB
1778
1779 config PAGE_SIZE_4KB
1780 bool "4kB"
1781 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1782 help
1783 This option select the standard 4kB Linux page size. On some
1784 R3000-family processors this is the only available page size. Using
1785 4kB page size will minimize memory consumption and is therefore
1786 recommended for low memory systems.
1787
1788 config PAGE_SIZE_8KB
1789 bool "8kB"
1790 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1791 help
1792 Using 8kB page size will result in higher performance kernel at
1793 the price of higher memory consumption. This option is available
1794 only on R8000 and cnMIPS processors. Note that you will need a
1795 suitable Linux distribution to support this.
1796
1797 config PAGE_SIZE_16KB
1798 bool "16kB"
1799 depends on !CPU_R3000 && !CPU_TX39XX
1800 help
1801 Using 16kB page size will result in higher performance kernel at
1802 the price of higher memory consumption. This option is available on
1803 all non-R3000 family processors. Note that you will need a suitable
1804 Linux distribution to support this.
1805
1806 config PAGE_SIZE_32KB
1807 bool "32kB"
1808 depends on CPU_CAVIUM_OCTEON
1809 help
1810 Using 32kB page size will result in higher performance kernel at
1811 the price of higher memory consumption. This option is available
1812 only on cnMIPS cores. Note that you will need a suitable Linux
1813 distribution to support this.
1814
1815 config PAGE_SIZE_64KB
1816 bool "64kB"
1817 depends on !CPU_R3000 && !CPU_TX39XX
1818 help
1819 Using 64kB page size will result in higher performance kernel at
1820 the price of higher memory consumption. This option is available on
1821 all non-R3000 family processor. Not that at the time of this
1822 writing this option is still high experimental.
1823
1824 endchoice
1825
1826 config FORCE_MAX_ZONEORDER
1827 int "Maximum zone order"
1828 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1829 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1830 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1831 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1832 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1833 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1834 range 11 64
1835 default "11"
1836 help
1837 The kernel memory allocator divides physically contiguous memory
1838 blocks into "zones", where each zone is a power of two number of
1839 pages. This option selects the largest power of two that the kernel
1840 keeps in the memory allocator. If you need to allocate very large
1841 blocks of physically contiguous memory, then you may need to
1842 increase this value.
1843
1844 This config option is actually maximum order plus one. For example,
1845 a value of 11 means that the largest free memory block is 2^10 pages.
1846
1847 The page size is not necessarily 4KB. Keep this in mind
1848 when choosing a value for this option.
1849
1850 config CEVT_GIC
1851 bool "Use GIC global counter for clock events"
1852 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1853 help
1854 Use the GIC global counter for the clock events. The R4K clock
1855 event driver is always present, so if the platform ends up not
1856 detecting a GIC, it will fall back to the R4K timer for the
1857 generation of clock events.
1858
1859 config BOARD_SCACHE
1860 bool
1861
1862 config IP22_CPU_SCACHE
1863 bool
1864 select BOARD_SCACHE
1865
1866 #
1867 # Support for a MIPS32 / MIPS64 style S-caches
1868 #
1869 config MIPS_CPU_SCACHE
1870 bool
1871 select BOARD_SCACHE
1872 select MIPS_L1_CACHE_SHIFT_6
1873
1874 config R5000_CPU_SCACHE
1875 bool
1876 select BOARD_SCACHE
1877
1878 config RM7000_CPU_SCACHE
1879 bool
1880 select BOARD_SCACHE
1881
1882 config SIBYTE_DMA_PAGEOPS
1883 bool "Use DMA to clear/copy pages"
1884 depends on CPU_SB1
1885 help
1886 Instead of using the CPU to zero and copy pages, use a Data Mover
1887 channel. These DMA channels are otherwise unused by the standard
1888 SiByte Linux port. Seems to give a small performance benefit.
1889
1890 config CPU_HAS_PREFETCH
1891 bool
1892
1893 config CPU_GENERIC_DUMP_TLB
1894 bool
1895 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1896
1897 config CPU_R4K_FPU
1898 bool
1899 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1900
1901 config CPU_R4K_CACHE_TLB
1902 bool
1903 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1904
1905 choice
1906 prompt "MIPS MT options"
1907
1908 config MIPS_MT_DISABLED
1909 bool "Disable multithreading support"
1910 help
1911 Use this option if your platform does not support the MT ASE
1912 which is hardware multithreading support. On systems without
1913 an MT-enabled processor, this will be the only option that is
1914 available in this menu.
1915
1916 config MIPS_MT_SMP
1917 bool "Use 1 TC on each available VPE for SMP"
1918 depends on SYS_SUPPORTS_MULTITHREADING
1919 select CPU_MIPSR2_IRQ_VI
1920 select CPU_MIPSR2_IRQ_EI
1921 select SYNC_R4K
1922 select MIPS_GIC_IPI
1923 select MIPS_MT
1924 select SMP
1925 select SMP_UP
1926 select SYS_SUPPORTS_SMP
1927 select SYS_SUPPORTS_SCHED_SMT
1928 select MIPS_PERF_SHARED_TC_COUNTERS
1929 help
1930 This is a kernel model which is known as SMVP. This is supported
1931 on cores with the MT ASE and uses the available VPEs to implement
1932 virtual processors which supports SMP. This is equivalent to the
1933 Intel Hyperthreading feature. For further information go to
1934 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1935
1936 config MIPS_MT_SMTC
1937 bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1938 depends on CPU_MIPS32_R2
1939 depends on SYS_SUPPORTS_MULTITHREADING
1940 depends on !MIPS_CPS
1941 select CPU_MIPSR2_IRQ_VI
1942 select CPU_MIPSR2_IRQ_EI
1943 select MIPS_MT
1944 select SMP
1945 select SMP_UP
1946 select SYS_SUPPORTS_SMP
1947 select NR_CPUS_DEFAULT_8
1948 help
1949 This is a kernel model which is known as SMTC. This is
1950 supported on cores with the MT ASE and presents all TCs
1951 available on all VPEs to support SMP. For further
1952 information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1953
1954 endchoice
1955
1956 config MIPS_MT
1957 bool
1958
1959 config SCHED_SMT
1960 bool "SMT (multithreading) scheduler support"
1961 depends on SYS_SUPPORTS_SCHED_SMT
1962 default n
1963 help
1964 SMT scheduler support improves the CPU scheduler's decision making
1965 when dealing with MIPS MT enabled cores at a cost of slightly
1966 increased overhead in some places. If unsure say N here.
1967
1968 config SYS_SUPPORTS_SCHED_SMT
1969 bool
1970
1971 config SYS_SUPPORTS_MULTITHREADING
1972 bool
1973
1974 config MIPS_MT_FPAFF
1975 bool "Dynamic FPU affinity for FP-intensive threads"
1976 default y
1977 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1978
1979 config MIPS_VPE_LOADER
1980 bool "VPE loader support."
1981 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1982 select CPU_MIPSR2_IRQ_VI
1983 select CPU_MIPSR2_IRQ_EI
1984 select MIPS_MT
1985 help
1986 Includes a loader for loading an elf relocatable object
1987 onto another VPE and running it.
1988
1989 config MIPS_VPE_LOADER_CMP
1990 bool
1991 default "y"
1992 depends on MIPS_VPE_LOADER && MIPS_CMP
1993
1994 config MIPS_VPE_LOADER_MT
1995 bool
1996 default "y"
1997 depends on MIPS_VPE_LOADER && !MIPS_CMP
1998
1999 config MIPS_MT_SMTC_IM_BACKSTOP
2000 bool "Use per-TC register bits as backstop for inhibited IM bits"
2001 depends on MIPS_MT_SMTC
2002 default n
2003 help
2004 To support multiple TC microthreads acting as "CPUs" within
2005 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2006 during interrupt handling. To support legacy drivers and interrupt
2007 controller management code, SMTC has a "backstop" to track and
2008 if necessary restore the interrupt mask. This has some performance
2009 impact on interrupt service overhead.
2010
2011 config MIPS_MT_SMTC_IRQAFF
2012 bool "Support IRQ affinity API"
2013 depends on MIPS_MT_SMTC
2014 default n
2015 help
2016 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2017 for SMTC Linux kernel. Requires platform support, of which
2018 an example can be found in the MIPS kernel i8259 and Malta
2019 platform code. Adds some overhead to interrupt dispatch, and
2020 should be used only if you know what you are doing.
2021
2022 config MIPS_VPE_LOADER_TOM
2023 bool "Load VPE program into memory hidden from linux"
2024 depends on MIPS_VPE_LOADER
2025 default y
2026 help
2027 The loader can use memory that is present but has been hidden from
2028 Linux using the kernel command line option "mem=xxMB". It's up to
2029 you to ensure the amount you put in the option and the space your
2030 program requires is less or equal to the amount physically present.
2031
2032 config MIPS_VPE_APSP_API
2033 bool "Enable support for AP/SP API (RTLX)"
2034 depends on MIPS_VPE_LOADER
2035 help
2036
2037 config MIPS_VPE_APSP_API_CMP
2038 bool
2039 default "y"
2040 depends on MIPS_VPE_APSP_API && MIPS_CMP
2041
2042 config MIPS_VPE_APSP_API_MT
2043 bool
2044 default "y"
2045 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2046
2047 config MIPS_CMP
2048 bool "MIPS CMP framework support (DEPRECATED)"
2049 depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2050 select MIPS_GIC_IPI
2051 select SYNC_R4K
2052 select WEAK_ORDERING
2053 default n
2054 help
2055 Select this if you are using a bootloader which implements the "CMP
2056 framework" protocol (ie. YAMON) and want your kernel to make use of
2057 its ability to start secondary CPUs.
2058
2059 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2060 instead of this.
2061
2062 config MIPS_CPS
2063 bool "MIPS Coherent Processing System support"
2064 depends on SYS_SUPPORTS_MIPS_CPS
2065 select MIPS_CM
2066 select MIPS_CPC
2067 select MIPS_GIC_IPI
2068 select SMP
2069 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2070 select SYS_SUPPORTS_SMP
2071 select WEAK_ORDERING
2072 help
2073 Select this if you wish to run an SMP kernel across multiple cores
2074 within a MIPS Coherent Processing System. When this option is
2075 enabled the kernel will probe for other cores and boot them with
2076 no external assistance. It is safe to enable this when hardware
2077 support is unavailable.
2078
2079 config MIPS_GIC_IPI
2080 bool
2081
2082 config MIPS_CM
2083 bool
2084
2085 config MIPS_CPC
2086 bool
2087
2088 config SB1_PASS_1_WORKAROUNDS
2089 bool
2090 depends on CPU_SB1_PASS_1
2091 default y
2092
2093 config SB1_PASS_2_WORKAROUNDS
2094 bool
2095 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2096 default y
2097
2098 config SB1_PASS_2_1_WORKAROUNDS
2099 bool
2100 depends on CPU_SB1 && CPU_SB1_PASS_2
2101 default y
2102
2103
2104 config 64BIT_PHYS_ADDR
2105 bool
2106
2107 config ARCH_PHYS_ADDR_T_64BIT
2108 def_bool 64BIT_PHYS_ADDR
2109
2110 config CPU_HAS_SMARTMIPS
2111 depends on SYS_SUPPORTS_SMARTMIPS
2112 bool "Support for the SmartMIPS ASE"
2113 help
2114 SmartMIPS is a extension of the MIPS32 architecture aimed at
2115 increased security at both hardware and software level for
2116 smartcards. Enabling this option will allow proper use of the
2117 SmartMIPS instructions by Linux applications. However a kernel with
2118 this option will not work on a MIPS core without SmartMIPS core. If
2119 you don't know you probably don't have SmartMIPS and should say N
2120 here.
2121
2122 config CPU_MICROMIPS
2123 depends on SYS_SUPPORTS_MICROMIPS
2124 bool "Build kernel using microMIPS ISA"
2125 help
2126 When this option is enabled the kernel will be built using the
2127 microMIPS ISA
2128
2129 config CPU_HAS_MSA
2130 bool "Support for the MIPS SIMD Architecture"
2131 depends on CPU_SUPPORTS_MSA
2132 default y
2133 help
2134 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2135 and a set of SIMD instructions to operate on them. When this option
2136 is enabled the kernel will support allocating & switching MSA
2137 vector register contexts. If you know that your kernel will only be
2138 running on CPUs which do not support MSA or that your userland will
2139 not be making use of it then you may wish to say N here to reduce
2140 the size & complexity of your kernel.
2141
2142 If unsure, say Y.
2143
2144 config CPU_HAS_WB
2145 bool
2146
2147 config XKS01
2148 bool
2149
2150 #
2151 # Vectored interrupt mode is an R2 feature
2152 #
2153 config CPU_MIPSR2_IRQ_VI
2154 bool
2155
2156 #
2157 # Extended interrupt mode is an R2 feature
2158 #
2159 config CPU_MIPSR2_IRQ_EI
2160 bool
2161
2162 config CPU_HAS_SYNC
2163 bool
2164 depends on !CPU_R3000
2165 default y
2166
2167 #
2168 # CPU non-features
2169 #
2170 config CPU_DADDI_WORKAROUNDS
2171 bool
2172
2173 config CPU_R4000_WORKAROUNDS
2174 bool
2175 select CPU_R4400_WORKAROUNDS
2176
2177 config CPU_R4400_WORKAROUNDS
2178 bool
2179
2180 #
2181 # - Highmem only makes sense for the 32-bit kernel.
2182 # - The current highmem code will only work properly on physically indexed
2183 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2184 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2185 # moment we protect the user and offer the highmem option only on machines
2186 # where it's known to be safe. This will not offer highmem on a few systems
2187 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2188 # indexed CPUs but we're playing safe.
2189 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2190 # know they might have memory configurations that could make use of highmem
2191 # support.
2192 #
2193 config HIGHMEM
2194 bool "High Memory Support"
2195 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2196
2197 config CPU_SUPPORTS_HIGHMEM
2198 bool
2199
2200 config SYS_SUPPORTS_HIGHMEM
2201 bool
2202
2203 config SYS_SUPPORTS_SMARTMIPS
2204 bool
2205
2206 config SYS_SUPPORTS_MICROMIPS
2207 bool
2208
2209 config CPU_SUPPORTS_MSA
2210 bool
2211
2212 config ARCH_FLATMEM_ENABLE
2213 def_bool y
2214 depends on !NUMA && !CPU_LOONGSON2
2215
2216 config ARCH_DISCONTIGMEM_ENABLE
2217 bool
2218 default y if SGI_IP27
2219 help
2220 Say Y to support efficient handling of discontiguous physical memory,
2221 for architectures which are either NUMA (Non-Uniform Memory Access)
2222 or have huge holes in the physical address space for other reasons.
2223 See <file:Documentation/vm/numa> for more.
2224
2225 config ARCH_SPARSEMEM_ENABLE
2226 bool
2227 select SPARSEMEM_STATIC
2228
2229 config NUMA
2230 bool "NUMA Support"
2231 depends on SYS_SUPPORTS_NUMA
2232 help
2233 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2234 Access). This option improves performance on systems with more
2235 than two nodes; on two node systems it is generally better to
2236 leave it disabled; on single node systems disable this option
2237 disabled.
2238
2239 config SYS_SUPPORTS_NUMA
2240 bool
2241
2242 config NODES_SHIFT
2243 int
2244 default "6"
2245 depends on NEED_MULTIPLE_NODES
2246
2247 config HW_PERF_EVENTS
2248 bool "Enable hardware performance counter support for perf events"
2249 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2250 default y
2251 help
2252 Enable hardware performance counter support for perf events. If
2253 disabled, perf events will use software events only.
2254
2255 source "mm/Kconfig"
2256
2257 config SMP
2258 bool "Multi-Processing support"
2259 depends on SYS_SUPPORTS_SMP
2260 help
2261 This enables support for systems with more than one CPU. If you have
2262 a system with only one CPU, say N. If you have a system with more
2263 than one CPU, say Y.
2264
2265 If you say N here, the kernel will run on uni- and multiprocessor
2266 machines, but will use only one CPU of a multiprocessor machine. If
2267 you say Y here, the kernel will run on many, but not all,
2268 uniprocessor machines. On a uniprocessor machine, the kernel
2269 will run faster if you say N here.
2270
2271 People using multiprocessor machines who say Y here should also say
2272 Y to "Enhanced Real Time Clock Support", below.
2273
2274 See also the SMP-HOWTO available at
2275 <http://www.tldp.org/docs.html#howto>.
2276
2277 If you don't know what to do here, say N.
2278
2279 config SMP_UP
2280 bool
2281
2282 config SYS_SUPPORTS_MIPS_CMP
2283 bool
2284
2285 config SYS_SUPPORTS_MIPS_CPS
2286 bool
2287
2288 config SYS_SUPPORTS_SMP
2289 bool
2290
2291 config NR_CPUS_DEFAULT_4
2292 bool
2293
2294 config NR_CPUS_DEFAULT_8
2295 bool
2296
2297 config NR_CPUS_DEFAULT_16
2298 bool
2299
2300 config NR_CPUS_DEFAULT_32
2301 bool
2302
2303 config NR_CPUS_DEFAULT_64
2304 bool
2305
2306 config NR_CPUS
2307 int "Maximum number of CPUs (2-64)"
2308 range 2 64
2309 depends on SMP
2310 default "4" if NR_CPUS_DEFAULT_4
2311 default "8" if NR_CPUS_DEFAULT_8
2312 default "16" if NR_CPUS_DEFAULT_16
2313 default "32" if NR_CPUS_DEFAULT_32
2314 default "64" if NR_CPUS_DEFAULT_64
2315 help
2316 This allows you to specify the maximum number of CPUs which this
2317 kernel will support. The maximum supported value is 32 for 32-bit
2318 kernel and 64 for 64-bit kernels; the minimum value which makes
2319 sense is 1 for Qemu (useful only for kernel debugging purposes)
2320 and 2 for all others.
2321
2322 This is purely to save memory - each supported CPU adds
2323 approximately eight kilobytes to the kernel image. For best
2324 performance should round up your number of processors to the next
2325 power of two.
2326
2327 config MIPS_PERF_SHARED_TC_COUNTERS
2328 bool
2329
2330 #
2331 # Timer Interrupt Frequency Configuration
2332 #
2333
2334 choice
2335 prompt "Timer frequency"
2336 default HZ_250
2337 help
2338 Allows the configuration of the timer frequency.
2339
2340 config HZ_48
2341 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2342
2343 config HZ_100
2344 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2345
2346 config HZ_128
2347 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2348
2349 config HZ_250
2350 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2351
2352 config HZ_256
2353 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2354
2355 config HZ_1000
2356 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2357
2358 config HZ_1024
2359 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2360
2361 endchoice
2362
2363 config SYS_SUPPORTS_48HZ
2364 bool
2365
2366 config SYS_SUPPORTS_100HZ
2367 bool
2368
2369 config SYS_SUPPORTS_128HZ
2370 bool
2371
2372 config SYS_SUPPORTS_250HZ
2373 bool
2374
2375 config SYS_SUPPORTS_256HZ
2376 bool
2377
2378 config SYS_SUPPORTS_1000HZ
2379 bool
2380
2381 config SYS_SUPPORTS_1024HZ
2382 bool
2383
2384 config SYS_SUPPORTS_ARBIT_HZ
2385 bool
2386 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2387 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2388 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2389 !SYS_SUPPORTS_1024HZ
2390
2391 config HZ
2392 int
2393 default 48 if HZ_48
2394 default 100 if HZ_100
2395 default 128 if HZ_128
2396 default 250 if HZ_250
2397 default 256 if HZ_256
2398 default 1000 if HZ_1000
2399 default 1024 if HZ_1024
2400
2401 source "kernel/Kconfig.preempt"
2402
2403 config KEXEC
2404 bool "Kexec system call"
2405 help
2406 kexec is a system call that implements the ability to shutdown your
2407 current kernel, and to start another kernel. It is like a reboot
2408 but it is independent of the system firmware. And like a reboot
2409 you can start any kernel with it, not just Linux.
2410
2411 The name comes from the similarity to the exec system call.
2412
2413 It is an ongoing process to be certain the hardware in a machine
2414 is properly shutdown, so do not be surprised if this code does not
2415 initially work for you. As of this writing the exact hardware
2416 interface is strongly in flux, so no good recommendation can be
2417 made.
2418
2419 config CRASH_DUMP
2420 bool "Kernel crash dumps"
2421 help
2422 Generate crash dump after being started by kexec.
2423 This should be normally only set in special crash dump kernels
2424 which are loaded in the main kernel with kexec-tools into
2425 a specially reserved region and then later executed after
2426 a crash by kdump/kexec. The crash dump kernel must be compiled
2427 to a memory address not used by the main kernel or firmware using
2428 PHYSICAL_START.
2429
2430 config PHYSICAL_START
2431 hex "Physical address where the kernel is loaded"
2432 default "0xffffffff84000000" if 64BIT
2433 default "0x84000000" if 32BIT
2434 depends on CRASH_DUMP
2435 help
2436 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2437 If you plan to use kernel for capturing the crash dump change
2438 this value to start of the reserved region (the "X" value as
2439 specified in the "crashkernel=YM@XM" command line boot parameter
2440 passed to the panic-ed kernel).
2441
2442 config SECCOMP
2443 bool "Enable seccomp to safely compute untrusted bytecode"
2444 depends on PROC_FS
2445 default y
2446 help
2447 This kernel feature is useful for number crunching applications
2448 that may need to compute untrusted bytecode during their
2449 execution. By using pipes or other transports made available to
2450 the process as file descriptors supporting the read/write
2451 syscalls, it's possible to isolate those applications in
2452 their own address space using seccomp. Once seccomp is
2453 enabled via /proc/<pid>/seccomp, it cannot be disabled
2454 and the task is only allowed to execute a few safe syscalls
2455 defined by each seccomp mode.
2456
2457 If unsure, say Y. Only embedded should say N here.
2458
2459 config MIPS_O32_FP64_SUPPORT
2460 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2461 depends on 32BIT || MIPS32_O32
2462 help
2463 When this is enabled, the kernel will support use of 64-bit floating
2464 point registers with binaries using the O32 ABI along with the
2465 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2466 32-bit MIPS systems this support is at the cost of increasing the
2467 size and complexity of the compiled FPU emulator. Thus if you are
2468 running a MIPS32 system and know that none of your userland binaries
2469 will require 64-bit floating point, you may wish to reduce the size
2470 of your kernel & potentially improve FP emulation performance by
2471 saying N here.
2472
2473 Although binutils currently supports use of this flag the details
2474 concerning its effect upon the O32 ABI in userland are still being
2475 worked on. In order to avoid userland becoming dependant upon current
2476 behaviour before the details have been finalised, this option should
2477 be considered experimental and only enabled by those working upon
2478 said details.
2479
2480 If unsure, say N.
2481
2482 config USE_OF
2483 bool
2484 select OF
2485 select OF_EARLY_FLATTREE
2486 select IRQ_DOMAIN
2487
2488 endmenu
2489
2490 config LOCKDEP_SUPPORT
2491 bool
2492 default y
2493
2494 config STACKTRACE_SUPPORT
2495 bool
2496 default y
2497
2498 source "init/Kconfig"
2499
2500 source "kernel/Kconfig.freezer"
2501
2502 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2503
2504 config HW_HAS_EISA
2505 bool
2506 config HW_HAS_PCI
2507 bool
2508
2509 config PCI
2510 bool "Support for PCI controller"
2511 depends on HW_HAS_PCI
2512 select PCI_DOMAINS
2513 select NO_GENERIC_PCI_IOPORT_MAP
2514 help
2515 Find out whether you have a PCI motherboard. PCI is the name of a
2516 bus system, i.e. the way the CPU talks to the other stuff inside
2517 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2518 say Y, otherwise N.
2519
2520 config HT_PCI
2521 bool "Support for HT-linked PCI"
2522 default y
2523 depends on CPU_LOONGSON3
2524 select PCI
2525 select PCI_DOMAINS
2526 help
2527 Loongson family machines use Hyper-Transport bus for inter-core
2528 connection and device connection. The PCI bus is a subordinate
2529 linked at HT. Choose Y for Loongson-3 based machines.
2530
2531 config PCI_DOMAINS
2532 bool
2533
2534 source "drivers/pci/Kconfig"
2535
2536 source "drivers/pci/pcie/Kconfig"
2537
2538 #
2539 # ISA support is now enabled via select. Too many systems still have the one
2540 # or other ISA chip on the board that users don't know about so don't expect
2541 # users to choose the right thing ...
2542 #
2543 config ISA
2544 bool
2545
2546 config EISA
2547 bool "EISA support"
2548 depends on HW_HAS_EISA
2549 select ISA
2550 select GENERIC_ISA_DMA
2551 ---help---
2552 The Extended Industry Standard Architecture (EISA) bus was
2553 developed as an open alternative to the IBM MicroChannel bus.
2554
2555 The EISA bus provided some of the features of the IBM MicroChannel
2556 bus while maintaining backward compatibility with cards made for
2557 the older ISA bus. The EISA bus saw limited use between 1988 and
2558 1995 when it was made obsolete by the PCI bus.
2559
2560 Say Y here if you are building a kernel for an EISA-based machine.
2561
2562 Otherwise, say N.
2563
2564 source "drivers/eisa/Kconfig"
2565
2566 config TC
2567 bool "TURBOchannel support"
2568 depends on MACH_DECSTATION
2569 help
2570 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2571 processors. TURBOchannel programming specifications are available
2572 at:
2573 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2574 and:
2575 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2576 Linux driver support status is documented at:
2577 <http://www.linux-mips.org/wiki/DECstation>
2578
2579 config MMU
2580 bool
2581 default y
2582
2583 config I8253
2584 bool
2585 select CLKSRC_I8253
2586 select CLKEVT_I8253
2587 select MIPS_EXTERNAL_TIMER
2588
2589 config ZONE_DMA
2590 bool
2591
2592 config ZONE_DMA32
2593 bool
2594
2595 source "drivers/pcmcia/Kconfig"
2596
2597 source "drivers/pci/hotplug/Kconfig"
2598
2599 config RAPIDIO
2600 tristate "RapidIO support"
2601 depends on PCI
2602 default n
2603 help
2604 If you say Y here, the kernel will include drivers and
2605 infrastructure code to support RapidIO interconnect devices.
2606
2607 source "drivers/rapidio/Kconfig"
2608
2609 endmenu
2610
2611 menu "Executable file formats"
2612
2613 source "fs/Kconfig.binfmt"
2614
2615 config TRAD_SIGNALS
2616 bool
2617
2618 config MIPS32_COMPAT
2619 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2620 depends on 64BIT
2621 help
2622 Select this option if you want Linux/MIPS 32-bit binary
2623 compatibility. Since all software available for Linux/MIPS is
2624 currently 32-bit you should say Y here.
2625
2626 config COMPAT
2627 bool
2628 depends on MIPS32_COMPAT
2629 select ARCH_WANT_OLD_COMPAT_IPC
2630 default y
2631
2632 config SYSVIPC_COMPAT
2633 bool
2634 depends on COMPAT && SYSVIPC
2635 default y
2636
2637 config MIPS32_O32
2638 bool "Kernel support for o32 binaries"
2639 depends on MIPS32_COMPAT
2640 help
2641 Select this option if you want to run o32 binaries. These are pure
2642 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2643 existing binaries are in this format.
2644
2645 If unsure, say Y.
2646
2647 config MIPS32_N32
2648 bool "Kernel support for n32 binaries"
2649 depends on MIPS32_COMPAT
2650 help
2651 Select this option if you want to run n32 binaries. These are
2652 64-bit binaries using 32-bit quantities for addressing and certain
2653 data that would normally be 64-bit. They are used in special
2654 cases.
2655
2656 If unsure, say N.
2657
2658 config BINFMT_ELF32
2659 bool
2660 default y if MIPS32_O32 || MIPS32_N32
2661
2662 endmenu
2663
2664 menu "Power management options"
2665
2666 config ARCH_HIBERNATION_POSSIBLE
2667 def_bool y
2668 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2669
2670 config ARCH_SUSPEND_POSSIBLE
2671 def_bool y
2672 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2673
2674 source "kernel/power/Kconfig"
2675
2676 endmenu
2677
2678 config MIPS_EXTERNAL_TIMER
2679 bool
2680
2681 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2682 menu "CPU Power Management"
2683 source "drivers/cpufreq/Kconfig"
2684 endmenu
2685 endif
2686
2687 source "net/Kconfig"
2688
2689 source "drivers/Kconfig"
2690
2691 source "drivers/firmware/Kconfig"
2692
2693 source "fs/Kconfig"
2694
2695 source "arch/mips/Kconfig.debug"
2696
2697 source "security/Kconfig"
2698
2699 source "crypto/Kconfig"
2700
2701 source "lib/Kconfig"
2702
2703 source "arch/mips/kvm/Kconfig"