]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - arch/mips/Kconfig
Merge tag 'compress-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[mirror_ubuntu-zesty-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 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_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 select CPU_PM if CPU_IDLE
54 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
55
56 menu "Machine selection"
57
58 choice
59 prompt "System type"
60 default SGI_IP22
61
62 config MIPS_ALCHEMY
63 bool "Alchemy processor based machines"
64 select 64BIT_PHYS_ADDR
65 select CEVT_R4K
66 select CSRC_R4K
67 select IRQ_CPU
68 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
69 select SYS_HAS_CPU_MIPS32_R1
70 select SYS_SUPPORTS_32BIT_KERNEL
71 select SYS_SUPPORTS_APM_EMULATION
72 select ARCH_REQUIRE_GPIOLIB
73 select SYS_SUPPORTS_ZBOOT
74 select COMMON_CLK
75
76 config AR7
77 bool "Texas Instruments AR7"
78 select BOOT_ELF32
79 select DMA_NONCOHERENT
80 select CEVT_R4K
81 select CSRC_R4K
82 select IRQ_CPU
83 select NO_EXCEPT_FILL
84 select SWAP_IO_SPACE
85 select SYS_HAS_CPU_MIPS32_R1
86 select SYS_HAS_EARLY_PRINTK
87 select SYS_SUPPORTS_32BIT_KERNEL
88 select SYS_SUPPORTS_LITTLE_ENDIAN
89 select SYS_SUPPORTS_MIPS16
90 select SYS_SUPPORTS_ZBOOT_UART16550
91 select ARCH_REQUIRE_GPIOLIB
92 select VLYNQ
93 select HAVE_CLK
94 help
95 Support for the Texas Instruments AR7 System-on-a-Chip
96 family: TNETD7100, 7200 and 7300.
97
98 config ATH79
99 bool "Atheros AR71XX/AR724X/AR913X based boards"
100 select ARCH_REQUIRE_GPIOLIB
101 select BOOT_RAW
102 select CEVT_R4K
103 select CSRC_R4K
104 select DMA_NONCOHERENT
105 select HAVE_CLK
106 select CLKDEV_LOOKUP
107 select IRQ_CPU
108 select MIPS_MACHINE
109 select SYS_HAS_CPU_MIPS32_R2
110 select SYS_HAS_EARLY_PRINTK
111 select SYS_SUPPORTS_32BIT_KERNEL
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_MIPS16
114 help
115 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
116
117 config BCM47XX
118 bool "Broadcom BCM47XX based boards"
119 select ARCH_WANT_OPTIONAL_GPIOLIB
120 select BOOT_RAW
121 select CEVT_R4K
122 select CSRC_R4K
123 select DMA_NONCOHERENT
124 select HW_HAS_PCI
125 select IRQ_CPU
126 select SYS_HAS_CPU_MIPS32_R1
127 select NO_EXCEPT_FILL
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_LITTLE_ENDIAN
130 select SYS_SUPPORTS_MIPS16
131 select SYS_HAS_EARLY_PRINTK
132 select USE_GENERIC_EARLY_PRINTK_8250
133 select GPIOLIB
134 select LEDS_GPIO_REGISTER
135 help
136 Support for BCM47XX based boards
137
138 config BCM63XX
139 bool "Broadcom BCM63XX based boards"
140 select BOOT_RAW
141 select CEVT_R4K
142 select CSRC_R4K
143 select SYNC_R4K
144 select DMA_NONCOHERENT
145 select IRQ_CPU
146 select SYS_SUPPORTS_32BIT_KERNEL
147 select SYS_SUPPORTS_BIG_ENDIAN
148 select SYS_HAS_EARLY_PRINTK
149 select SWAP_IO_SPACE
150 select ARCH_REQUIRE_GPIOLIB
151 select HAVE_CLK
152 select MIPS_L1_CACHE_SHIFT_4
153 help
154 Support for BCM63XX based boards
155
156 config MIPS_COBALT
157 bool "Cobalt Server"
158 select CEVT_R4K
159 select CSRC_R4K
160 select CEVT_GT641XX
161 select DMA_NONCOHERENT
162 select HW_HAS_PCI
163 select I8253
164 select I8259
165 select IRQ_CPU
166 select IRQ_GT641XX
167 select PCI_GT64XXX_PCI0
168 select PCI
169 select SYS_HAS_CPU_NEVADA
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select USE_GENERIC_EARLY_PRINTK_8250
175
176 config MACH_DECSTATION
177 bool "DECstations"
178 select BOOT_ELF32
179 select CEVT_DS1287
180 select CEVT_R4K if CPU_R4X00
181 select CSRC_IOASIC
182 select CSRC_R4K if CPU_R4X00
183 select CPU_DADDI_WORKAROUNDS if 64BIT
184 select CPU_R4000_WORKAROUNDS if 64BIT
185 select CPU_R4400_WORKAROUNDS if 64BIT
186 select DMA_NONCOHERENT
187 select NO_IOPORT_MAP
188 select IRQ_CPU
189 select SYS_HAS_CPU_R3000
190 select SYS_HAS_CPU_R4X00
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_64BIT_KERNEL
193 select SYS_SUPPORTS_LITTLE_ENDIAN
194 select SYS_SUPPORTS_128HZ
195 select SYS_SUPPORTS_256HZ
196 select SYS_SUPPORTS_1024HZ
197 select MIPS_L1_CACHE_SHIFT_4
198 help
199 This enables support for DEC's MIPS based workstations. For details
200 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
201 DECstation porting pages on <http://decstation.unix-ag.org/>.
202
203 If you have one of the following DECstation Models you definitely
204 want to choose R4xx0 for the CPU Type:
205
206 DECstation 5000/50
207 DECstation 5000/150
208 DECstation 5000/260
209 DECsystem 5900/260
210
211 otherwise choose R3000.
212
213 config MACH_JAZZ
214 bool "Jazz family of machines"
215 select FW_ARC
216 select FW_ARC32
217 select ARCH_MAY_HAVE_PC_FDC
218 select CEVT_R4K
219 select CSRC_R4K
220 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
221 select GENERIC_ISA_DMA
222 select HAVE_PCSPKR_PLATFORM
223 select IRQ_CPU
224 select I8253
225 select I8259
226 select ISA
227 select SYS_HAS_CPU_R4X00
228 select SYS_SUPPORTS_32BIT_KERNEL
229 select SYS_SUPPORTS_64BIT_KERNEL
230 select SYS_SUPPORTS_100HZ
231 help
232 This a family of machines based on the MIPS R4030 chipset which was
233 used by several vendors to build RISC/os and Windows NT workstations.
234 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
235 Olivetti M700-10 workstations.
236
237 config MACH_JZ4740
238 bool "Ingenic JZ4740 based machines"
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_LITTLE_ENDIAN
242 select SYS_SUPPORTS_ZBOOT_UART16550
243 select DMA_NONCOHERENT
244 select IRQ_CPU
245 select ARCH_REQUIRE_GPIOLIB
246 select SYS_HAS_EARLY_PRINTK
247 select HAVE_CLK
248 select GENERIC_IRQ_CHIP
249
250 config LANTIQ
251 bool "Lantiq based platforms"
252 select DMA_NONCOHERENT
253 select IRQ_CPU
254 select CEVT_R4K
255 select CSRC_R4K
256 select SYS_HAS_CPU_MIPS32_R1
257 select SYS_HAS_CPU_MIPS32_R2
258 select SYS_SUPPORTS_BIG_ENDIAN
259 select SYS_SUPPORTS_32BIT_KERNEL
260 select SYS_SUPPORTS_MIPS16
261 select SYS_SUPPORTS_MULTITHREADING
262 select SYS_HAS_EARLY_PRINTK
263 select ARCH_REQUIRE_GPIOLIB
264 select SWAP_IO_SPACE
265 select BOOT_RAW
266 select HAVE_MACH_CLKDEV
267 select CLKDEV_LOOKUP
268 select USE_OF
269 select PINCTRL
270 select PINCTRL_LANTIQ
271
272 config LASAT
273 bool "LASAT Networks platforms"
274 select CEVT_R4K
275 select CRC32
276 select CSRC_R4K
277 select DMA_NONCOHERENT
278 select SYS_HAS_EARLY_PRINTK
279 select HW_HAS_PCI
280 select IRQ_CPU
281 select PCI_GT64XXX_PCI0
282 select MIPS_NILE4
283 select R5000_CPU_SCACHE
284 select SYS_HAS_CPU_R5000
285 select SYS_SUPPORTS_32BIT_KERNEL
286 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
287 select SYS_SUPPORTS_LITTLE_ENDIAN
288
289 config MACH_LOONGSON
290 bool "Loongson family of machines"
291 select SYS_SUPPORTS_ZBOOT
292 help
293 This enables the support of Loongson family of machines.
294
295 Loongson is a family of general-purpose MIPS-compatible CPUs.
296 developed at Institute of Computing Technology (ICT),
297 Chinese Academy of Sciences (CAS) in the People's Republic
298 of China. The chief architect is Professor Weiwu Hu.
299
300 config MACH_LOONGSON1
301 bool "Loongson 1 family of machines"
302 select SYS_SUPPORTS_ZBOOT
303 help
304 This enables support for the Loongson 1 based machines.
305
306 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
307 the ICT (Institute of Computing Technology) and the Chinese Academy
308 of Sciences.
309
310 config MIPS_MALTA
311 bool "MIPS Malta board"
312 select ARCH_MAY_HAVE_PC_FDC
313 select BOOT_ELF32
314 select BOOT_RAW
315 select CEVT_R4K
316 select CSRC_R4K
317 select CSRC_GIC
318 select DMA_MAYBE_COHERENT
319 select GENERIC_ISA_DMA
320 select HAVE_PCSPKR_PLATFORM
321 select IRQ_CPU
322 select IRQ_GIC
323 select HW_HAS_PCI
324 select I8253
325 select I8259
326 select MIPS_BONITO64
327 select MIPS_CPU_SCACHE
328 select PCI_GT64XXX_PCI0
329 select MIPS_MSC
330 select SWAP_IO_SPACE
331 select SYS_HAS_CPU_MIPS32_R1
332 select SYS_HAS_CPU_MIPS32_R2
333 select SYS_HAS_CPU_MIPS32_R3_5
334 select SYS_HAS_CPU_MIPS64_R1
335 select SYS_HAS_CPU_MIPS64_R2
336 select SYS_HAS_CPU_NEVADA
337 select SYS_HAS_CPU_RM7000
338 select SYS_SUPPORTS_32BIT_KERNEL
339 select SYS_SUPPORTS_64BIT_KERNEL
340 select SYS_SUPPORTS_BIG_ENDIAN
341 select SYS_SUPPORTS_LITTLE_ENDIAN
342 select SYS_SUPPORTS_MIPS_CMP
343 select SYS_SUPPORTS_MIPS_CPS
344 select SYS_SUPPORTS_MIPS16
345 select SYS_SUPPORTS_MULTITHREADING
346 select SYS_SUPPORTS_SMARTMIPS
347 select SYS_SUPPORTS_ZBOOT
348 help
349 This enables support for the MIPS Technologies Malta evaluation
350 board.
351
352 config MIPS_SEAD3
353 bool "MIPS SEAD3 board"
354 select BOOT_ELF32
355 select BOOT_RAW
356 select CEVT_R4K
357 select CSRC_R4K
358 select CSRC_GIC
359 select CPU_MIPSR2_IRQ_VI
360 select CPU_MIPSR2_IRQ_EI
361 select DMA_NONCOHERENT
362 select IRQ_CPU
363 select IRQ_GIC
364 select LIBFDT
365 select MIPS_MSC
366 select SYS_HAS_CPU_MIPS32_R1
367 select SYS_HAS_CPU_MIPS32_R2
368 select SYS_HAS_CPU_MIPS64_R1
369 select SYS_HAS_EARLY_PRINTK
370 select SYS_SUPPORTS_32BIT_KERNEL
371 select SYS_SUPPORTS_64BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
373 select SYS_SUPPORTS_LITTLE_ENDIAN
374 select SYS_SUPPORTS_SMARTMIPS
375 select SYS_SUPPORTS_MICROMIPS
376 select SYS_SUPPORTS_MIPS16
377 select USB_EHCI_BIG_ENDIAN_DESC
378 select USB_EHCI_BIG_ENDIAN_MMIO
379 select USE_OF
380 help
381 This enables support for the MIPS Technologies SEAD3 evaluation
382 board.
383
384 config NEC_MARKEINS
385 bool "NEC EMMA2RH Mark-eins board"
386 select SOC_EMMA2RH
387 select HW_HAS_PCI
388 help
389 This enables support for the NEC Electronics Mark-eins boards.
390
391 config MACH_VR41XX
392 bool "NEC VR4100 series based machines"
393 select CEVT_R4K
394 select CSRC_R4K
395 select SYS_HAS_CPU_VR41XX
396 select SYS_SUPPORTS_MIPS16
397 select ARCH_REQUIRE_GPIOLIB
398
399 config NXP_STB220
400 bool "NXP STB220 board"
401 select SOC_PNX833X
402 help
403 Support for NXP Semiconductors STB220 Development Board.
404
405 config NXP_STB225
406 bool "NXP 225 board"
407 select SOC_PNX833X
408 select SOC_PNX8335
409 help
410 Support for NXP Semiconductors STB225 Development Board.
411
412 config PMC_MSP
413 bool "PMC-Sierra MSP chipsets"
414 select CEVT_R4K
415 select CSRC_R4K
416 select DMA_NONCOHERENT
417 select SWAP_IO_SPACE
418 select NO_EXCEPT_FILL
419 select BOOT_RAW
420 select SYS_HAS_CPU_MIPS32_R1
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
424 select SYS_SUPPORTS_MIPS16
425 select IRQ_CPU
426 select SERIAL_8250
427 select SERIAL_8250_CONSOLE
428 select USB_EHCI_BIG_ENDIAN_MMIO
429 select USB_EHCI_BIG_ENDIAN_DESC
430 help
431 This adds support for the PMC-Sierra family of Multi-Service
432 Processor System-On-A-Chips. These parts include a number
433 of integrated peripherals, interfaces and DSPs in addition to
434 a variety of MIPS cores.
435
436 config RALINK
437 bool "Ralink based machines"
438 select CEVT_R4K
439 select CSRC_R4K
440 select BOOT_RAW
441 select DMA_NONCOHERENT
442 select IRQ_CPU
443 select USE_OF
444 select SYS_HAS_CPU_MIPS32_R1
445 select SYS_HAS_CPU_MIPS32_R2
446 select SYS_SUPPORTS_32BIT_KERNEL
447 select SYS_SUPPORTS_LITTLE_ENDIAN
448 select SYS_SUPPORTS_MIPS16
449 select SYS_HAS_EARLY_PRINTK
450 select HAVE_MACH_CLKDEV
451 select CLKDEV_LOOKUP
452 select ARCH_HAS_RESET_CONTROLLER
453 select RESET_CONTROLLER
454
455 config SGI_IP22
456 bool "SGI IP22 (Indy/Indigo2)"
457 select FW_ARC
458 select FW_ARC32
459 select BOOT_ELF32
460 select CEVT_R4K
461 select CSRC_R4K
462 select DEFAULT_SGI_PARTITION
463 select DMA_NONCOHERENT
464 select HW_HAS_EISA
465 select I8253
466 select I8259
467 select IP22_CPU_SCACHE
468 select IRQ_CPU
469 select GENERIC_ISA_DMA_SUPPORT_BROKEN
470 select SGI_HAS_I8042
471 select SGI_HAS_INDYDOG
472 select SGI_HAS_HAL2
473 select SGI_HAS_SEEQ
474 select SGI_HAS_WD93
475 select SGI_HAS_ZILOG
476 select SWAP_IO_SPACE
477 select SYS_HAS_CPU_R4X00
478 select SYS_HAS_CPU_R5000
479 #
480 # Disable EARLY_PRINTK for now since it leads to overwritten prom
481 # memory during early boot on some machines.
482 #
483 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
484 # for a more details discussion
485 #
486 # select SYS_HAS_EARLY_PRINTK
487 select SYS_SUPPORTS_32BIT_KERNEL
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select MIPS_L1_CACHE_SHIFT_7
491 help
492 This are the SGI Indy, Challenge S and Indigo2, as well as certain
493 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
494 that runs on these, say Y here.
495
496 config SGI_IP27
497 bool "SGI IP27 (Origin200/2000)"
498 select FW_ARC
499 select FW_ARC64
500 select BOOT_ELF64
501 select DEFAULT_SGI_PARTITION
502 select DMA_COHERENT
503 select SYS_HAS_EARLY_PRINTK
504 select HW_HAS_PCI
505 select NR_CPUS_DEFAULT_64
506 select SYS_HAS_CPU_R10000
507 select SYS_SUPPORTS_64BIT_KERNEL
508 select SYS_SUPPORTS_BIG_ENDIAN
509 select SYS_SUPPORTS_NUMA
510 select SYS_SUPPORTS_SMP
511 select MIPS_L1_CACHE_SHIFT_7
512 help
513 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
514 workstations. To compile a Linux kernel that runs on these, say Y
515 here.
516
517 config SGI_IP28
518 bool "SGI IP28 (Indigo2 R10k)"
519 select FW_ARC
520 select FW_ARC64
521 select BOOT_ELF64
522 select CEVT_R4K
523 select CSRC_R4K
524 select DEFAULT_SGI_PARTITION
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA_SUPPORT_BROKEN
527 select IRQ_CPU
528 select HW_HAS_EISA
529 select I8253
530 select I8259
531 select SGI_HAS_I8042
532 select SGI_HAS_INDYDOG
533 select SGI_HAS_HAL2
534 select SGI_HAS_SEEQ
535 select SGI_HAS_WD93
536 select SGI_HAS_ZILOG
537 select SWAP_IO_SPACE
538 select SYS_HAS_CPU_R10000
539 #
540 # Disable EARLY_PRINTK for now since it leads to overwritten prom
541 # memory during early boot on some machines.
542 #
543 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
544 # for a more details discussion
545 #
546 # select SYS_HAS_EARLY_PRINTK
547 select SYS_SUPPORTS_64BIT_KERNEL
548 select SYS_SUPPORTS_BIG_ENDIAN
549 select MIPS_L1_CACHE_SHIFT_7
550 help
551 This is the SGI Indigo2 with R10000 processor. To compile a Linux
552 kernel that runs on these, say Y here.
553
554 config SGI_IP32
555 bool "SGI IP32 (O2)"
556 select FW_ARC
557 select FW_ARC32
558 select BOOT_ELF32
559 select CEVT_R4K
560 select CSRC_R4K
561 select DMA_NONCOHERENT
562 select HW_HAS_PCI
563 select IRQ_CPU
564 select R5000_CPU_SCACHE
565 select RM7000_CPU_SCACHE
566 select SYS_HAS_CPU_R5000
567 select SYS_HAS_CPU_R10000 if BROKEN
568 select SYS_HAS_CPU_RM7000
569 select SYS_HAS_CPU_NEVADA
570 select SYS_SUPPORTS_64BIT_KERNEL
571 select SYS_SUPPORTS_BIG_ENDIAN
572 help
573 If you want this kernel to run on SGI O2 workstation, say Y here.
574
575 config SIBYTE_CRHINE
576 bool "Sibyte BCM91120C-CRhine"
577 select BOOT_ELF32
578 select DMA_COHERENT
579 select SIBYTE_BCM1120
580 select SWAP_IO_SPACE
581 select SYS_HAS_CPU_SB1
582 select SYS_SUPPORTS_BIG_ENDIAN
583 select SYS_SUPPORTS_LITTLE_ENDIAN
584
585 config SIBYTE_CARMEL
586 bool "Sibyte BCM91120x-Carmel"
587 select BOOT_ELF32
588 select DMA_COHERENT
589 select SIBYTE_BCM1120
590 select SWAP_IO_SPACE
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
594
595 config SIBYTE_CRHONE
596 bool "Sibyte BCM91125C-CRhone"
597 select BOOT_ELF32
598 select DMA_COHERENT
599 select SIBYTE_BCM1125
600 select SWAP_IO_SPACE
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_HIGHMEM
604 select SYS_SUPPORTS_LITTLE_ENDIAN
605
606 config SIBYTE_RHONE
607 bool "Sibyte BCM91125E-Rhone"
608 select BOOT_ELF32
609 select DMA_COHERENT
610 select SIBYTE_BCM1125H
611 select SWAP_IO_SPACE
612 select SYS_HAS_CPU_SB1
613 select SYS_SUPPORTS_BIG_ENDIAN
614 select SYS_SUPPORTS_LITTLE_ENDIAN
615
616 config SIBYTE_SWARM
617 bool "Sibyte BCM91250A-SWARM"
618 select BOOT_ELF32
619 select DMA_COHERENT
620 select HAVE_PATA_PLATFORM
621 select SIBYTE_SB1250
622 select SWAP_IO_SPACE
623 select SYS_HAS_CPU_SB1
624 select SYS_SUPPORTS_BIG_ENDIAN
625 select SYS_SUPPORTS_HIGHMEM
626 select SYS_SUPPORTS_LITTLE_ENDIAN
627 select ZONE_DMA32 if 64BIT
628
629 config SIBYTE_LITTLESUR
630 bool "Sibyte BCM91250C2-LittleSur"
631 select BOOT_ELF32
632 select DMA_COHERENT
633 select HAVE_PATA_PLATFORM
634 select SIBYTE_SB1250
635 select SWAP_IO_SPACE
636 select SYS_HAS_CPU_SB1
637 select SYS_SUPPORTS_BIG_ENDIAN
638 select SYS_SUPPORTS_HIGHMEM
639 select SYS_SUPPORTS_LITTLE_ENDIAN
640
641 config SIBYTE_SENTOSA
642 bool "Sibyte BCM91250E-Sentosa"
643 select BOOT_ELF32
644 select DMA_COHERENT
645 select SIBYTE_SB1250
646 select SWAP_IO_SPACE
647 select SYS_HAS_CPU_SB1
648 select SYS_SUPPORTS_BIG_ENDIAN
649 select SYS_SUPPORTS_LITTLE_ENDIAN
650
651 config SIBYTE_BIGSUR
652 bool "Sibyte BCM91480B-BigSur"
653 select BOOT_ELF32
654 select DMA_COHERENT
655 select NR_CPUS_DEFAULT_4
656 select SIBYTE_BCM1x80
657 select SWAP_IO_SPACE
658 select SYS_HAS_CPU_SB1
659 select SYS_SUPPORTS_BIG_ENDIAN
660 select SYS_SUPPORTS_HIGHMEM
661 select SYS_SUPPORTS_LITTLE_ENDIAN
662 select ZONE_DMA32 if 64BIT
663
664 config SNI_RM
665 bool "SNI RM200/300/400"
666 select FW_ARC if CPU_LITTLE_ENDIAN
667 select FW_ARC32 if CPU_LITTLE_ENDIAN
668 select FW_SNIPROM if CPU_BIG_ENDIAN
669 select ARCH_MAY_HAVE_PC_FDC
670 select BOOT_ELF32
671 select CEVT_R4K
672 select CSRC_R4K
673 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
674 select DMA_NONCOHERENT
675 select GENERIC_ISA_DMA
676 select HAVE_PCSPKR_PLATFORM
677 select HW_HAS_EISA
678 select HW_HAS_PCI
679 select IRQ_CPU
680 select I8253
681 select I8259
682 select ISA
683 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
684 select SYS_HAS_CPU_R4X00
685 select SYS_HAS_CPU_R5000
686 select SYS_HAS_CPU_R10000
687 select R5000_CPU_SCACHE
688 select SYS_HAS_EARLY_PRINTK
689 select SYS_SUPPORTS_32BIT_KERNEL
690 select SYS_SUPPORTS_64BIT_KERNEL
691 select SYS_SUPPORTS_BIG_ENDIAN
692 select SYS_SUPPORTS_HIGHMEM
693 select SYS_SUPPORTS_LITTLE_ENDIAN
694 help
695 The SNI RM200/300/400 are MIPS-based machines manufactured by
696 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
697 Technology and now in turn merged with Fujitsu. Say Y here to
698 support this machine type.
699
700 config MACH_TX39XX
701 bool "Toshiba TX39 series based machines"
702
703 config MACH_TX49XX
704 bool "Toshiba TX49 series based machines"
705
706 config MIKROTIK_RB532
707 bool "Mikrotik RB532 boards"
708 select CEVT_R4K
709 select CSRC_R4K
710 select DMA_NONCOHERENT
711 select HW_HAS_PCI
712 select IRQ_CPU
713 select SYS_HAS_CPU_MIPS32_R1
714 select SYS_SUPPORTS_32BIT_KERNEL
715 select SYS_SUPPORTS_LITTLE_ENDIAN
716 select SWAP_IO_SPACE
717 select BOOT_RAW
718 select ARCH_REQUIRE_GPIOLIB
719 select MIPS_L1_CACHE_SHIFT_4
720 help
721 Support the Mikrotik(tm) RouterBoard 532 series,
722 based on the IDT RC32434 SoC.
723
724 config CAVIUM_OCTEON_SOC
725 bool "Cavium Networks Octeon SoC based boards"
726 select CEVT_R4K
727 select 64BIT_PHYS_ADDR
728 select DMA_COHERENT
729 select SYS_SUPPORTS_64BIT_KERNEL
730 select SYS_SUPPORTS_BIG_ENDIAN
731 select EDAC_SUPPORT
732 select SYS_SUPPORTS_HOTPLUG_CPU
733 select SYS_HAS_EARLY_PRINTK
734 select SYS_HAS_CPU_CAVIUM_OCTEON
735 select SWAP_IO_SPACE
736 select HW_HAS_PCI
737 select ZONE_DMA32
738 select HOLES_IN_ZONE
739 select ARCH_REQUIRE_GPIOLIB
740 select LIBFDT
741 select USE_OF
742 select ARCH_SPARSEMEM_ENABLE
743 select SYS_SUPPORTS_SMP
744 select NR_CPUS_DEFAULT_16
745 help
746 This option supports all of the Octeon reference boards from Cavium
747 Networks. It builds a kernel that dynamically determines the Octeon
748 CPU type and supports all known board reference implementations.
749 Some of the supported boards are:
750 EBT3000
751 EBH3000
752 EBH3100
753 Thunder
754 Kodama
755 Hikari
756 Say Y here for most Octeon reference boards.
757
758 config NLM_XLR_BOARD
759 bool "Netlogic XLR/XLS based systems"
760 select BOOT_ELF32
761 select NLM_COMMON
762 select SYS_HAS_CPU_XLR
763 select SYS_SUPPORTS_SMP
764 select HW_HAS_PCI
765 select SWAP_IO_SPACE
766 select SYS_SUPPORTS_32BIT_KERNEL
767 select SYS_SUPPORTS_64BIT_KERNEL
768 select 64BIT_PHYS_ADDR
769 select SYS_SUPPORTS_BIG_ENDIAN
770 select SYS_SUPPORTS_HIGHMEM
771 select DMA_COHERENT
772 select NR_CPUS_DEFAULT_32
773 select CEVT_R4K
774 select CSRC_R4K
775 select IRQ_CPU
776 select ZONE_DMA32 if 64BIT
777 select SYNC_R4K
778 select SYS_HAS_EARLY_PRINTK
779 select SYS_SUPPORTS_ZBOOT
780 select SYS_SUPPORTS_ZBOOT_UART16550
781 help
782 Support for systems based on Netlogic XLR and XLS processors.
783 Say Y here if you have a XLR or XLS based board.
784
785 config NLM_XLP_BOARD
786 bool "Netlogic XLP based systems"
787 select BOOT_ELF32
788 select NLM_COMMON
789 select SYS_HAS_CPU_XLP
790 select SYS_SUPPORTS_SMP
791 select HW_HAS_PCI
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_LITTLE_ENDIAN
797 select SYS_SUPPORTS_HIGHMEM
798 select DMA_COHERENT
799 select NR_CPUS_DEFAULT_32
800 select CEVT_R4K
801 select CSRC_R4K
802 select IRQ_CPU
803 select ZONE_DMA32 if 64BIT
804 select SYNC_R4K
805 select SYS_HAS_EARLY_PRINTK
806 select USE_OF
807 select SYS_SUPPORTS_ZBOOT
808 select SYS_SUPPORTS_ZBOOT_UART16550
809 help
810 This board is based on Netlogic XLP Processor.
811 Say Y here if you have a XLP based board.
812
813 config MIPS_PARAVIRT
814 bool "Para-Virtualized guest system"
815 select CEVT_R4K
816 select CSRC_R4K
817 select DMA_COHERENT
818 select SYS_SUPPORTS_64BIT_KERNEL
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select SYS_SUPPORTS_SMP
822 select NR_CPUS_DEFAULT_4
823 select SYS_HAS_EARLY_PRINTK
824 select SYS_HAS_CPU_MIPS32_R2
825 select SYS_HAS_CPU_MIPS64_R2
826 select SYS_HAS_CPU_CAVIUM_OCTEON
827 select HW_HAS_PCI
828 select SWAP_IO_SPACE
829 help
830 This option supports guest running under ????
831
832 endchoice
833
834 source "arch/mips/alchemy/Kconfig"
835 source "arch/mips/ath79/Kconfig"
836 source "arch/mips/bcm47xx/Kconfig"
837 source "arch/mips/bcm63xx/Kconfig"
838 source "arch/mips/jazz/Kconfig"
839 source "arch/mips/jz4740/Kconfig"
840 source "arch/mips/lantiq/Kconfig"
841 source "arch/mips/lasat/Kconfig"
842 source "arch/mips/pmcs-msp71xx/Kconfig"
843 source "arch/mips/ralink/Kconfig"
844 source "arch/mips/sgi-ip27/Kconfig"
845 source "arch/mips/sibyte/Kconfig"
846 source "arch/mips/txx9/Kconfig"
847 source "arch/mips/vr41xx/Kconfig"
848 source "arch/mips/cavium-octeon/Kconfig"
849 source "arch/mips/loongson/Kconfig"
850 source "arch/mips/loongson1/Kconfig"
851 source "arch/mips/netlogic/Kconfig"
852 source "arch/mips/paravirt/Kconfig"
853
854 endmenu
855
856 config RWSEM_GENERIC_SPINLOCK
857 bool
858 default y
859
860 config RWSEM_XCHGADD_ALGORITHM
861 bool
862
863 config ARCH_HAS_ILOG2_U32
864 bool
865 default n
866
867 config ARCH_HAS_ILOG2_U64
868 bool
869 default n
870
871 config GENERIC_HWEIGHT
872 bool
873 default y
874
875 config GENERIC_CALIBRATE_DELAY
876 bool
877 default y
878
879 config SCHED_OMIT_FRAME_POINTER
880 bool
881 default y
882
883 #
884 # Select some configuration options automatically based on user selections.
885 #
886 config FW_ARC
887 bool
888
889 config ARCH_MAY_HAVE_PC_FDC
890 bool
891
892 config BOOT_RAW
893 bool
894
895 config CEVT_BCM1480
896 bool
897
898 config CEVT_DS1287
899 bool
900
901 config CEVT_GT641XX
902 bool
903
904 config CEVT_R4K
905 bool
906
907 config CEVT_GIC
908 select MIPS_CM
909 bool
910
911 config CEVT_SB1250
912 bool
913
914 config CEVT_TXX9
915 bool
916
917 config CSRC_BCM1480
918 bool
919
920 config CSRC_IOASIC
921 bool
922
923 config CSRC_R4K
924 bool
925
926 config CSRC_GIC
927 select MIPS_CM
928 bool
929
930 config CSRC_SB1250
931 bool
932
933 config GPIO_TXX9
934 select ARCH_REQUIRE_GPIOLIB
935 bool
936
937 config FW_CFE
938 bool
939
940 config ARCH_DMA_ADDR_T_64BIT
941 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
942
943 config DMA_MAYBE_COHERENT
944 select DMA_NONCOHERENT
945 bool
946
947 config DMA_COHERENT
948 bool
949
950 config DMA_NONCOHERENT
951 bool
952 select NEED_DMA_MAP_STATE
953
954 config NEED_DMA_MAP_STATE
955 bool
956
957 config SYS_HAS_EARLY_PRINTK
958 bool
959
960 config HOTPLUG_CPU
961 bool "Support for hot-pluggable CPUs"
962 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
963 help
964 Say Y here to allow turning CPUs off and on. CPUs can be
965 controlled through /sys/devices/system/cpu.
966 (Note: power management support will enable this option
967 automatically on SMP systems. )
968 Say N if you want to disable CPU hotplug.
969
970 config SYS_SUPPORTS_HOTPLUG_CPU
971 bool
972
973 config I8259
974 bool
975
976 config MIPS_BONITO64
977 bool
978
979 config MIPS_MSC
980 bool
981
982 config MIPS_NILE4
983 bool
984
985 config SYNC_R4K
986 bool
987
988 config MIPS_MACHINE
989 def_bool n
990
991 config NO_IOPORT_MAP
992 def_bool n
993
994 config GENERIC_ISA_DMA
995 bool
996 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
997 select ISA_DMA_API
998
999 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1000 bool
1001 select GENERIC_ISA_DMA
1002
1003 config ISA_DMA_API
1004 bool
1005
1006 config HOLES_IN_ZONE
1007 bool
1008
1009 #
1010 # Endianness selection. Sufficiently obscure so many users don't know what to
1011 # answer,so we try hard to limit the available choices. Also the use of a
1012 # choice statement should be more obvious to the user.
1013 #
1014 choice
1015 prompt "Endianness selection"
1016 help
1017 Some MIPS machines can be configured for either little or big endian
1018 byte order. These modes require different kernels and a different
1019 Linux distribution. In general there is one preferred byteorder for a
1020 particular system but some systems are just as commonly used in the
1021 one or the other endianness.
1022
1023 config CPU_BIG_ENDIAN
1024 bool "Big endian"
1025 depends on SYS_SUPPORTS_BIG_ENDIAN
1026
1027 config CPU_LITTLE_ENDIAN
1028 bool "Little endian"
1029 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1030
1031 endchoice
1032
1033 config EXPORT_UASM
1034 bool
1035
1036 config SYS_SUPPORTS_APM_EMULATION
1037 bool
1038
1039 config SYS_SUPPORTS_BIG_ENDIAN
1040 bool
1041
1042 config SYS_SUPPORTS_LITTLE_ENDIAN
1043 bool
1044
1045 config SYS_SUPPORTS_HUGETLBFS
1046 bool
1047 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1048 default y
1049
1050 config MIPS_HUGE_TLB_SUPPORT
1051 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1052
1053 config IRQ_CPU
1054 bool
1055
1056 config IRQ_CPU_RM7K
1057 bool
1058
1059 config IRQ_MSP_SLP
1060 bool
1061
1062 config IRQ_MSP_CIC
1063 bool
1064
1065 config IRQ_TXX9
1066 bool
1067
1068 config IRQ_GT641XX
1069 bool
1070
1071 config IRQ_GIC
1072 select MIPS_CM
1073 bool
1074
1075 config PCI_GT64XXX_PCI0
1076 bool
1077
1078 config NO_EXCEPT_FILL
1079 bool
1080
1081 config SOC_EMMA2RH
1082 bool
1083 select CEVT_R4K
1084 select CSRC_R4K
1085 select DMA_NONCOHERENT
1086 select IRQ_CPU
1087 select SWAP_IO_SPACE
1088 select SYS_HAS_CPU_R5500
1089 select SYS_SUPPORTS_32BIT_KERNEL
1090 select SYS_SUPPORTS_64BIT_KERNEL
1091 select SYS_SUPPORTS_BIG_ENDIAN
1092
1093 config SOC_PNX833X
1094 bool
1095 select CEVT_R4K
1096 select CSRC_R4K
1097 select IRQ_CPU
1098 select DMA_NONCOHERENT
1099 select SYS_HAS_CPU_MIPS32_R2
1100 select SYS_SUPPORTS_32BIT_KERNEL
1101 select SYS_SUPPORTS_LITTLE_ENDIAN
1102 select SYS_SUPPORTS_BIG_ENDIAN
1103 select SYS_SUPPORTS_MIPS16
1104 select CPU_MIPSR2_IRQ_VI
1105
1106 config SOC_PNX8335
1107 bool
1108 select SOC_PNX833X
1109
1110 config SWAP_IO_SPACE
1111 bool
1112
1113 config SGI_HAS_INDYDOG
1114 bool
1115
1116 config SGI_HAS_HAL2
1117 bool
1118
1119 config SGI_HAS_SEEQ
1120 bool
1121
1122 config SGI_HAS_WD93
1123 bool
1124
1125 config SGI_HAS_ZILOG
1126 bool
1127
1128 config SGI_HAS_I8042
1129 bool
1130
1131 config DEFAULT_SGI_PARTITION
1132 bool
1133
1134 config FW_ARC32
1135 bool
1136
1137 config FW_SNIPROM
1138 bool
1139
1140 config BOOT_ELF32
1141 bool
1142
1143 config MIPS_L1_CACHE_SHIFT_4
1144 bool
1145
1146 config MIPS_L1_CACHE_SHIFT_5
1147 bool
1148
1149 config MIPS_L1_CACHE_SHIFT_6
1150 bool
1151
1152 config MIPS_L1_CACHE_SHIFT_7
1153 bool
1154
1155 config MIPS_L1_CACHE_SHIFT
1156 int
1157 default "4" if MIPS_L1_CACHE_SHIFT_4
1158 default "5" if MIPS_L1_CACHE_SHIFT_5
1159 default "6" if MIPS_L1_CACHE_SHIFT_6
1160 default "7" if MIPS_L1_CACHE_SHIFT_7
1161 default "5"
1162
1163 config HAVE_STD_PC_SERIAL_PORT
1164 bool
1165
1166 config ARC_CONSOLE
1167 bool "ARC console support"
1168 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1169
1170 config ARC_MEMORY
1171 bool
1172 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1173 default y
1174
1175 config ARC_PROMLIB
1176 bool
1177 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1178 default y
1179
1180 config FW_ARC64
1181 bool
1182
1183 config BOOT_ELF64
1184 bool
1185
1186 menu "CPU selection"
1187
1188 choice
1189 prompt "CPU type"
1190 default CPU_R4X00
1191
1192 config CPU_LOONGSON3
1193 bool "Loongson 3 CPU"
1194 depends on SYS_HAS_CPU_LOONGSON3
1195 select CPU_SUPPORTS_64BIT_KERNEL
1196 select CPU_SUPPORTS_HIGHMEM
1197 select CPU_SUPPORTS_HUGEPAGES
1198 select WEAK_ORDERING
1199 select WEAK_REORDERING_BEYOND_LLSC
1200 help
1201 The Loongson 3 processor implements the MIPS64R2 instruction
1202 set with many extensions.
1203
1204 config CPU_LOONGSON2E
1205 bool "Loongson 2E"
1206 depends on SYS_HAS_CPU_LOONGSON2E
1207 select CPU_LOONGSON2
1208 help
1209 The Loongson 2E processor implements the MIPS III instruction set
1210 with many extensions.
1211
1212 It has an internal FPGA northbridge, which is compatible to
1213 bonito64.
1214
1215 config CPU_LOONGSON2F
1216 bool "Loongson 2F"
1217 depends on SYS_HAS_CPU_LOONGSON2F
1218 select CPU_LOONGSON2
1219 select ARCH_REQUIRE_GPIOLIB
1220 help
1221 The Loongson 2F processor implements the MIPS III instruction set
1222 with many extensions.
1223
1224 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1225 have a similar programming interface with FPGA northbridge used in
1226 Loongson2E.
1227
1228 config CPU_LOONGSON1B
1229 bool "Loongson 1B"
1230 depends on SYS_HAS_CPU_LOONGSON1B
1231 select CPU_LOONGSON1
1232 help
1233 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1234 release 2 instruction set.
1235
1236 config CPU_MIPS32_R1
1237 bool "MIPS32 Release 1"
1238 depends on SYS_HAS_CPU_MIPS32_R1
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_HIGHMEM
1242 help
1243 Choose this option to build a kernel for release 1 or later of the
1244 MIPS32 architecture. Most modern embedded systems with a 32-bit
1245 MIPS processor are based on a MIPS32 processor. If you know the
1246 specific type of processor in your system, choose those that one
1247 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1248 Release 2 of the MIPS32 architecture is available since several
1249 years so chances are you even have a MIPS32 Release 2 processor
1250 in which case you should choose CPU_MIPS32_R2 instead for better
1251 performance.
1252
1253 config CPU_MIPS32_R2
1254 bool "MIPS32 Release 2"
1255 depends on SYS_HAS_CPU_MIPS32_R2
1256 select CPU_HAS_PREFETCH
1257 select CPU_SUPPORTS_32BIT_KERNEL
1258 select CPU_SUPPORTS_HIGHMEM
1259 select CPU_SUPPORTS_MSA
1260 select HAVE_KVM
1261 help
1262 Choose this option to build a kernel for release 2 or later of the
1263 MIPS32 architecture. Most modern embedded systems with a 32-bit
1264 MIPS processor are based on a MIPS32 processor. If you know the
1265 specific type of processor in your system, choose those that one
1266 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1267
1268 config CPU_MIPS64_R1
1269 bool "MIPS64 Release 1"
1270 depends on SYS_HAS_CPU_MIPS64_R1
1271 select CPU_HAS_PREFETCH
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1274 select CPU_SUPPORTS_HIGHMEM
1275 select CPU_SUPPORTS_HUGEPAGES
1276 help
1277 Choose this option to build a kernel for release 1 or later of the
1278 MIPS64 architecture. Many modern embedded systems with a 64-bit
1279 MIPS processor are based on a MIPS64 processor. If you know the
1280 specific type of processor in your system, choose those that one
1281 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1282 Release 2 of the MIPS64 architecture is available since several
1283 years so chances are you even have a MIPS64 Release 2 processor
1284 in which case you should choose CPU_MIPS64_R2 instead for better
1285 performance.
1286
1287 config CPU_MIPS64_R2
1288 bool "MIPS64 Release 2"
1289 depends on SYS_HAS_CPU_MIPS64_R2
1290 select CPU_HAS_PREFETCH
1291 select CPU_SUPPORTS_32BIT_KERNEL
1292 select CPU_SUPPORTS_64BIT_KERNEL
1293 select CPU_SUPPORTS_HIGHMEM
1294 select CPU_SUPPORTS_HUGEPAGES
1295 select CPU_SUPPORTS_MSA
1296 help
1297 Choose this option to build a kernel for release 2 or later of the
1298 MIPS64 architecture. Many modern embedded systems with a 64-bit
1299 MIPS processor are based on a MIPS64 processor. If you know the
1300 specific type of processor in your system, choose those that one
1301 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1302
1303 config CPU_R3000
1304 bool "R3000"
1305 depends on SYS_HAS_CPU_R3000
1306 select CPU_HAS_WB
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_HIGHMEM
1309 help
1310 Please make sure to pick the right CPU type. Linux/MIPS is not
1311 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1312 *not* work on R4000 machines and vice versa. However, since most
1313 of the supported machines have an R4000 (or similar) CPU, R4x00
1314 might be a safe bet. If the resulting kernel does not work,
1315 try to recompile with R3000.
1316
1317 config CPU_TX39XX
1318 bool "R39XX"
1319 depends on SYS_HAS_CPU_TX39XX
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321
1322 config CPU_VR41XX
1323 bool "R41xx"
1324 depends on SYS_HAS_CPU_VR41XX
1325 select CPU_SUPPORTS_32BIT_KERNEL
1326 select CPU_SUPPORTS_64BIT_KERNEL
1327 help
1328 The options selects support for the NEC VR4100 series of processors.
1329 Only choose this option if you have one of these processors as a
1330 kernel built with this option will not run on any other type of
1331 processor or vice versa.
1332
1333 config CPU_R4300
1334 bool "R4300"
1335 depends on SYS_HAS_CPU_R4300
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 help
1339 MIPS Technologies R4300-series processors.
1340
1341 config CPU_R4X00
1342 bool "R4x00"
1343 depends on SYS_HAS_CPU_R4X00
1344 select CPU_SUPPORTS_32BIT_KERNEL
1345 select CPU_SUPPORTS_64BIT_KERNEL
1346 select CPU_SUPPORTS_HUGEPAGES
1347 help
1348 MIPS Technologies R4000-series processors other than 4300, including
1349 the R4000, R4400, R4600, and 4700.
1350
1351 config CPU_TX49XX
1352 bool "R49XX"
1353 depends on SYS_HAS_CPU_TX49XX
1354 select CPU_HAS_PREFETCH
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1358
1359 config CPU_R5000
1360 bool "R5000"
1361 depends on SYS_HAS_CPU_R5000
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1365 help
1366 MIPS Technologies R5000-series processors other than the Nevada.
1367
1368 config CPU_R5432
1369 bool "R5432"
1370 depends on SYS_HAS_CPU_R5432
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HUGEPAGES
1374
1375 config CPU_R5500
1376 bool "R5500"
1377 depends on SYS_HAS_CPU_R5500
1378 select CPU_SUPPORTS_32BIT_KERNEL
1379 select CPU_SUPPORTS_64BIT_KERNEL
1380 select CPU_SUPPORTS_HUGEPAGES
1381 help
1382 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1383 instruction set.
1384
1385 config CPU_R6000
1386 bool "R6000"
1387 depends on SYS_HAS_CPU_R6000
1388 select CPU_SUPPORTS_32BIT_KERNEL
1389 help
1390 MIPS Technologies R6000 and R6000A series processors. Note these
1391 processors are extremely rare and the support for them is incomplete.
1392
1393 config CPU_NEVADA
1394 bool "RM52xx"
1395 depends on SYS_HAS_CPU_NEVADA
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_64BIT_KERNEL
1398 select CPU_SUPPORTS_HUGEPAGES
1399 help
1400 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1401
1402 config CPU_R8000
1403 bool "R8000"
1404 depends on SYS_HAS_CPU_R8000
1405 select CPU_HAS_PREFETCH
1406 select CPU_SUPPORTS_64BIT_KERNEL
1407 help
1408 MIPS Technologies R8000 processors. Note these processors are
1409 uncommon and the support for them is incomplete.
1410
1411 config CPU_R10000
1412 bool "R10000"
1413 depends on SYS_HAS_CPU_R10000
1414 select CPU_HAS_PREFETCH
1415 select CPU_SUPPORTS_32BIT_KERNEL
1416 select CPU_SUPPORTS_64BIT_KERNEL
1417 select CPU_SUPPORTS_HIGHMEM
1418 select CPU_SUPPORTS_HUGEPAGES
1419 help
1420 MIPS Technologies R10000-series processors.
1421
1422 config CPU_RM7000
1423 bool "RM7000"
1424 depends on SYS_HAS_CPU_RM7000
1425 select CPU_HAS_PREFETCH
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select CPU_SUPPORTS_HUGEPAGES
1430
1431 config CPU_SB1
1432 bool "SB1"
1433 depends on SYS_HAS_CPU_SB1
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_64BIT_KERNEL
1436 select CPU_SUPPORTS_HIGHMEM
1437 select CPU_SUPPORTS_HUGEPAGES
1438 select WEAK_ORDERING
1439
1440 config CPU_CAVIUM_OCTEON
1441 bool "Cavium Octeon processor"
1442 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1443 select CPU_HAS_PREFETCH
1444 select CPU_SUPPORTS_64BIT_KERNEL
1445 select WEAK_ORDERING
1446 select CPU_SUPPORTS_HIGHMEM
1447 select CPU_SUPPORTS_HUGEPAGES
1448 select USB_EHCI_BIG_ENDIAN_MMIO
1449 select MIPS_L1_CACHE_SHIFT_7
1450 help
1451 The Cavium Octeon processor is a highly integrated chip containing
1452 many ethernet hardware widgets for networking tasks. The processor
1453 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1454 Full details can be found at http://www.caviumnetworks.com.
1455
1456 config CPU_BMIPS
1457 bool "Broadcom BMIPS"
1458 depends on SYS_HAS_CPU_BMIPS
1459 select CPU_MIPS32
1460 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1461 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1462 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1463 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1464 select CPU_SUPPORTS_32BIT_KERNEL
1465 select DMA_NONCOHERENT
1466 select IRQ_CPU
1467 select SWAP_IO_SPACE
1468 select WEAK_ORDERING
1469 select CPU_SUPPORTS_HIGHMEM
1470 select CPU_HAS_PREFETCH
1471 help
1472 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1473
1474 config CPU_XLR
1475 bool "Netlogic XLR SoC"
1476 depends on SYS_HAS_CPU_XLR
1477 select CPU_SUPPORTS_32BIT_KERNEL
1478 select CPU_SUPPORTS_64BIT_KERNEL
1479 select CPU_SUPPORTS_HIGHMEM
1480 select CPU_SUPPORTS_HUGEPAGES
1481 select WEAK_ORDERING
1482 select WEAK_REORDERING_BEYOND_LLSC
1483 help
1484 Netlogic Microsystems XLR/XLS processors.
1485
1486 config CPU_XLP
1487 bool "Netlogic XLP SoC"
1488 depends on SYS_HAS_CPU_XLP
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HIGHMEM
1492 select WEAK_ORDERING
1493 select WEAK_REORDERING_BEYOND_LLSC
1494 select CPU_HAS_PREFETCH
1495 select CPU_MIPSR2
1496 help
1497 Netlogic Microsystems XLP processors.
1498 endchoice
1499
1500 config CPU_MIPS32_3_5_FEATURES
1501 bool "MIPS32 Release 3.5 Features"
1502 depends on SYS_HAS_CPU_MIPS32_R3_5
1503 depends on CPU_MIPS32_R2
1504 help
1505 Choose this option to build a kernel for release 2 or later of the
1506 MIPS32 architecture including features from the 3.5 release such as
1507 support for Enhanced Virtual Addressing (EVA).
1508
1509 config CPU_MIPS32_3_5_EVA
1510 bool "Enhanced Virtual Addressing (EVA)"
1511 depends on CPU_MIPS32_3_5_FEATURES
1512 select EVA
1513 default y
1514 help
1515 Choose this option if you want to enable the Enhanced Virtual
1516 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1517 One of its primary benefits is an increase in the maximum size
1518 of lowmem (up to 3GB). If unsure, say 'N' here.
1519
1520 if CPU_LOONGSON2F
1521 config CPU_NOP_WORKAROUNDS
1522 bool
1523
1524 config CPU_JUMP_WORKAROUNDS
1525 bool
1526
1527 config CPU_LOONGSON2F_WORKAROUNDS
1528 bool "Loongson 2F Workarounds"
1529 default y
1530 select CPU_NOP_WORKAROUNDS
1531 select CPU_JUMP_WORKAROUNDS
1532 help
1533 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1534 require workarounds. Without workarounds the system may hang
1535 unexpectedly. For more information please refer to the gas
1536 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1537
1538 Loongson 2F03 and later have fixed these issues and no workarounds
1539 are needed. The workarounds have no significant side effect on them
1540 but may decrease the performance of the system so this option should
1541 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1542 systems.
1543
1544 If unsure, please say Y.
1545 endif # CPU_LOONGSON2F
1546
1547 config SYS_SUPPORTS_ZBOOT
1548 bool
1549 select HAVE_KERNEL_GZIP
1550 select HAVE_KERNEL_BZIP2
1551 select HAVE_KERNEL_LZ4
1552 select HAVE_KERNEL_LZMA
1553 select HAVE_KERNEL_LZO
1554 select HAVE_KERNEL_XZ
1555
1556 config SYS_SUPPORTS_ZBOOT_UART16550
1557 bool
1558 select SYS_SUPPORTS_ZBOOT
1559
1560 config CPU_LOONGSON2
1561 bool
1562 select CPU_SUPPORTS_32BIT_KERNEL
1563 select CPU_SUPPORTS_64BIT_KERNEL
1564 select CPU_SUPPORTS_HIGHMEM
1565 select CPU_SUPPORTS_HUGEPAGES
1566
1567 config CPU_LOONGSON1
1568 bool
1569 select CPU_MIPS32
1570 select CPU_MIPSR2
1571 select CPU_HAS_PREFETCH
1572 select CPU_SUPPORTS_32BIT_KERNEL
1573 select CPU_SUPPORTS_HIGHMEM
1574
1575 config CPU_BMIPS32_3300
1576 select SMP_UP if SMP
1577 bool
1578
1579 config CPU_BMIPS4350
1580 bool
1581 select SYS_SUPPORTS_SMP
1582 select SYS_SUPPORTS_HOTPLUG_CPU
1583
1584 config CPU_BMIPS4380
1585 bool
1586 select SYS_SUPPORTS_SMP
1587 select SYS_SUPPORTS_HOTPLUG_CPU
1588
1589 config CPU_BMIPS5000
1590 bool
1591 select MIPS_CPU_SCACHE
1592 select SYS_SUPPORTS_SMP
1593 select SYS_SUPPORTS_HOTPLUG_CPU
1594
1595 config SYS_HAS_CPU_LOONGSON3
1596 bool
1597 select CPU_SUPPORTS_CPUFREQ
1598
1599 config SYS_HAS_CPU_LOONGSON2E
1600 bool
1601
1602 config SYS_HAS_CPU_LOONGSON2F
1603 bool
1604 select CPU_SUPPORTS_CPUFREQ
1605 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1606 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1607
1608 config SYS_HAS_CPU_LOONGSON1B
1609 bool
1610
1611 config SYS_HAS_CPU_MIPS32_R1
1612 bool
1613
1614 config SYS_HAS_CPU_MIPS32_R2
1615 bool
1616
1617 config SYS_HAS_CPU_MIPS32_R3_5
1618 bool
1619
1620 config SYS_HAS_CPU_MIPS64_R1
1621 bool
1622
1623 config SYS_HAS_CPU_MIPS64_R2
1624 bool
1625
1626 config SYS_HAS_CPU_R3000
1627 bool
1628
1629 config SYS_HAS_CPU_TX39XX
1630 bool
1631
1632 config SYS_HAS_CPU_VR41XX
1633 bool
1634
1635 config SYS_HAS_CPU_R4300
1636 bool
1637
1638 config SYS_HAS_CPU_R4X00
1639 bool
1640
1641 config SYS_HAS_CPU_TX49XX
1642 bool
1643
1644 config SYS_HAS_CPU_R5000
1645 bool
1646
1647 config SYS_HAS_CPU_R5432
1648 bool
1649
1650 config SYS_HAS_CPU_R5500
1651 bool
1652
1653 config SYS_HAS_CPU_R6000
1654 bool
1655
1656 config SYS_HAS_CPU_NEVADA
1657 bool
1658
1659 config SYS_HAS_CPU_R8000
1660 bool
1661
1662 config SYS_HAS_CPU_R10000
1663 bool
1664
1665 config SYS_HAS_CPU_RM7000
1666 bool
1667
1668 config SYS_HAS_CPU_SB1
1669 bool
1670
1671 config SYS_HAS_CPU_CAVIUM_OCTEON
1672 bool
1673
1674 config SYS_HAS_CPU_BMIPS
1675 bool
1676
1677 config SYS_HAS_CPU_BMIPS32_3300
1678 bool
1679 select SYS_HAS_CPU_BMIPS
1680
1681 config SYS_HAS_CPU_BMIPS4350
1682 bool
1683 select SYS_HAS_CPU_BMIPS
1684
1685 config SYS_HAS_CPU_BMIPS4380
1686 bool
1687 select SYS_HAS_CPU_BMIPS
1688
1689 config SYS_HAS_CPU_BMIPS5000
1690 bool
1691 select SYS_HAS_CPU_BMIPS
1692
1693 config SYS_HAS_CPU_XLR
1694 bool
1695
1696 config SYS_HAS_CPU_XLP
1697 bool
1698
1699 config MIPS_MALTA_PM
1700 depends on MIPS_MALTA
1701 depends on PCI
1702 bool
1703 default y
1704
1705 #
1706 # CPU may reorder R->R, R->W, W->R, W->W
1707 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1708 #
1709 config WEAK_ORDERING
1710 bool
1711
1712 #
1713 # CPU may reorder reads and writes beyond LL/SC
1714 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1715 #
1716 config WEAK_REORDERING_BEYOND_LLSC
1717 bool
1718 endmenu
1719
1720 #
1721 # These two indicate any level of the MIPS32 and MIPS64 architecture
1722 #
1723 config CPU_MIPS32
1724 bool
1725 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1726
1727 config CPU_MIPS64
1728 bool
1729 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1730
1731 #
1732 # These two indicate the revision of the architecture, either Release 1 or Release 2
1733 #
1734 config CPU_MIPSR1
1735 bool
1736 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1737
1738 config CPU_MIPSR2
1739 bool
1740 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1741
1742 config EVA
1743 bool
1744
1745 config SYS_SUPPORTS_32BIT_KERNEL
1746 bool
1747 config SYS_SUPPORTS_64BIT_KERNEL
1748 bool
1749 config CPU_SUPPORTS_32BIT_KERNEL
1750 bool
1751 config CPU_SUPPORTS_64BIT_KERNEL
1752 bool
1753 config CPU_SUPPORTS_CPUFREQ
1754 bool
1755 config CPU_SUPPORTS_ADDRWINCFG
1756 bool
1757 config CPU_SUPPORTS_HUGEPAGES
1758 bool
1759 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1760 bool
1761 config MIPS_PGD_C0_CONTEXT
1762 bool
1763 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1764
1765 #
1766 # Set to y for ptrace access to watch registers.
1767 #
1768 config HARDWARE_WATCHPOINTS
1769 bool
1770 default y if CPU_MIPSR1 || CPU_MIPSR2
1771
1772 menu "Kernel type"
1773
1774 choice
1775 prompt "Kernel code model"
1776 help
1777 You should only select this option if you have a workload that
1778 actually benefits from 64-bit processing or if your machine has
1779 large memory. You will only be presented a single option in this
1780 menu if your system does not support both 32-bit and 64-bit kernels.
1781
1782 config 32BIT
1783 bool "32-bit kernel"
1784 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1785 select TRAD_SIGNALS
1786 help
1787 Select this option if you want to build a 32-bit kernel.
1788 config 64BIT
1789 bool "64-bit kernel"
1790 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1791 help
1792 Select this option if you want to build a 64-bit kernel.
1793
1794 endchoice
1795
1796 config KVM_GUEST
1797 bool "KVM Guest Kernel"
1798 depends on BROKEN_ON_SMP
1799 help
1800 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1801
1802 config KVM_GUEST_TIMER_FREQ
1803 int "Count/Compare Timer Frequency (MHz)"
1804 depends on KVM_GUEST
1805 default 100
1806 help
1807 Set this to non-zero if building a guest kernel for KVM to skip RTC
1808 emulation when determining guest CPU Frequency. Instead, the guest's
1809 timer frequency is specified directly.
1810
1811 choice
1812 prompt "Kernel page size"
1813 default PAGE_SIZE_4KB
1814
1815 config PAGE_SIZE_4KB
1816 bool "4kB"
1817 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1818 help
1819 This option select the standard 4kB Linux page size. On some
1820 R3000-family processors this is the only available page size. Using
1821 4kB page size will minimize memory consumption and is therefore
1822 recommended for low memory systems.
1823
1824 config PAGE_SIZE_8KB
1825 bool "8kB"
1826 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1827 help
1828 Using 8kB page size will result in higher performance kernel at
1829 the price of higher memory consumption. This option is available
1830 only on R8000 and cnMIPS processors. Note that you will need a
1831 suitable Linux distribution to support this.
1832
1833 config PAGE_SIZE_16KB
1834 bool "16kB"
1835 depends on !CPU_R3000 && !CPU_TX39XX
1836 help
1837 Using 16kB page size will result in higher performance kernel at
1838 the price of higher memory consumption. This option is available on
1839 all non-R3000 family processors. Note that you will need a suitable
1840 Linux distribution to support this.
1841
1842 config PAGE_SIZE_32KB
1843 bool "32kB"
1844 depends on CPU_CAVIUM_OCTEON
1845 help
1846 Using 32kB page size will result in higher performance kernel at
1847 the price of higher memory consumption. This option is available
1848 only on cnMIPS cores. Note that you will need a suitable Linux
1849 distribution to support this.
1850
1851 config PAGE_SIZE_64KB
1852 bool "64kB"
1853 depends on !CPU_R3000 && !CPU_TX39XX
1854 help
1855 Using 64kB page size will result in higher performance kernel at
1856 the price of higher memory consumption. This option is available on
1857 all non-R3000 family processor. Not that at the time of this
1858 writing this option is still high experimental.
1859
1860 endchoice
1861
1862 config FORCE_MAX_ZONEORDER
1863 int "Maximum zone order"
1864 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1865 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1866 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1867 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1868 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1869 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1870 range 11 64
1871 default "11"
1872 help
1873 The kernel memory allocator divides physically contiguous memory
1874 blocks into "zones", where each zone is a power of two number of
1875 pages. This option selects the largest power of two that the kernel
1876 keeps in the memory allocator. If you need to allocate very large
1877 blocks of physically contiguous memory, then you may need to
1878 increase this value.
1879
1880 This config option is actually maximum order plus one. For example,
1881 a value of 11 means that the largest free memory block is 2^10 pages.
1882
1883 The page size is not necessarily 4KB. Keep this in mind
1884 when choosing a value for this option.
1885
1886 config CEVT_GIC
1887 bool "Use GIC global counter for clock events"
1888 depends on IRQ_GIC && !MIPS_SEAD3
1889 help
1890 Use the GIC global counter for the clock events. The R4K clock
1891 event driver is always present, so if the platform ends up not
1892 detecting a GIC, it will fall back to the R4K timer for the
1893 generation of clock events.
1894
1895 config BOARD_SCACHE
1896 bool
1897
1898 config IP22_CPU_SCACHE
1899 bool
1900 select BOARD_SCACHE
1901
1902 #
1903 # Support for a MIPS32 / MIPS64 style S-caches
1904 #
1905 config MIPS_CPU_SCACHE
1906 bool
1907 select BOARD_SCACHE
1908 select MIPS_L1_CACHE_SHIFT_6
1909
1910 config R5000_CPU_SCACHE
1911 bool
1912 select BOARD_SCACHE
1913
1914 config RM7000_CPU_SCACHE
1915 bool
1916 select BOARD_SCACHE
1917
1918 config SIBYTE_DMA_PAGEOPS
1919 bool "Use DMA to clear/copy pages"
1920 depends on CPU_SB1
1921 help
1922 Instead of using the CPU to zero and copy pages, use a Data Mover
1923 channel. These DMA channels are otherwise unused by the standard
1924 SiByte Linux port. Seems to give a small performance benefit.
1925
1926 config CPU_HAS_PREFETCH
1927 bool
1928
1929 config CPU_GENERIC_DUMP_TLB
1930 bool
1931 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1932
1933 config CPU_R4K_FPU
1934 bool
1935 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1936
1937 config CPU_R4K_CACHE_TLB
1938 bool
1939 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1940
1941 config MIPS_MT_SMP
1942 bool "MIPS MT SMP support (1 TC on each available VPE)"
1943 depends on SYS_SUPPORTS_MULTITHREADING
1944 select CPU_MIPSR2_IRQ_VI
1945 select CPU_MIPSR2_IRQ_EI
1946 select SYNC_R4K
1947 select MIPS_GIC_IPI
1948 select MIPS_MT
1949 select SMP
1950 select SMP_UP
1951 select SYS_SUPPORTS_SMP
1952 select SYS_SUPPORTS_SCHED_SMT
1953 select MIPS_PERF_SHARED_TC_COUNTERS
1954 help
1955 This is a kernel model which is known as SMVP. This is supported
1956 on cores with the MT ASE and uses the available VPEs to implement
1957 virtual processors which supports SMP. This is equivalent to the
1958 Intel Hyperthreading feature. For further information go to
1959 <http://www.imgtec.com/mips/mips-multithreading.asp>.
1960
1961 config MIPS_MT
1962 bool
1963
1964 config SCHED_SMT
1965 bool "SMT (multithreading) scheduler support"
1966 depends on SYS_SUPPORTS_SCHED_SMT
1967 default n
1968 help
1969 SMT scheduler support improves the CPU scheduler's decision making
1970 when dealing with MIPS MT enabled cores at a cost of slightly
1971 increased overhead in some places. If unsure say N here.
1972
1973 config SYS_SUPPORTS_SCHED_SMT
1974 bool
1975
1976 config SYS_SUPPORTS_MULTITHREADING
1977 bool
1978
1979 config MIPS_MT_FPAFF
1980 bool "Dynamic FPU affinity for FP-intensive threads"
1981 default y
1982 depends on MIPS_MT_SMP
1983
1984 config MIPS_VPE_LOADER
1985 bool "VPE loader support."
1986 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1987 select CPU_MIPSR2_IRQ_VI
1988 select CPU_MIPSR2_IRQ_EI
1989 select MIPS_MT
1990 help
1991 Includes a loader for loading an elf relocatable object
1992 onto another VPE and running it.
1993
1994 config MIPS_VPE_LOADER_CMP
1995 bool
1996 default "y"
1997 depends on MIPS_VPE_LOADER && MIPS_CMP
1998
1999 config MIPS_VPE_LOADER_MT
2000 bool
2001 default "y"
2002 depends on MIPS_VPE_LOADER && !MIPS_CMP
2003
2004 config MIPS_VPE_LOADER_TOM
2005 bool "Load VPE program into memory hidden from linux"
2006 depends on MIPS_VPE_LOADER
2007 default y
2008 help
2009 The loader can use memory that is present but has been hidden from
2010 Linux using the kernel command line option "mem=xxMB". It's up to
2011 you to ensure the amount you put in the option and the space your
2012 program requires is less or equal to the amount physically present.
2013
2014 config MIPS_VPE_APSP_API
2015 bool "Enable support for AP/SP API (RTLX)"
2016 depends on MIPS_VPE_LOADER
2017 help
2018
2019 config MIPS_VPE_APSP_API_CMP
2020 bool
2021 default "y"
2022 depends on MIPS_VPE_APSP_API && MIPS_CMP
2023
2024 config MIPS_VPE_APSP_API_MT
2025 bool
2026 default "y"
2027 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2028
2029 config MIPS_CMP
2030 bool "MIPS CMP framework support (DEPRECATED)"
2031 depends on SYS_SUPPORTS_MIPS_CMP
2032 select MIPS_GIC_IPI
2033 select SMP
2034 select SYNC_R4K
2035 select SYS_SUPPORTS_SMP
2036 select WEAK_ORDERING
2037 default n
2038 help
2039 Select this if you are using a bootloader which implements the "CMP
2040 framework" protocol (ie. YAMON) and want your kernel to make use of
2041 its ability to start secondary CPUs.
2042
2043 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2044 instead of this.
2045
2046 config MIPS_CPS
2047 bool "MIPS Coherent Processing System support"
2048 depends on SYS_SUPPORTS_MIPS_CPS
2049 select MIPS_CM
2050 select MIPS_CPC
2051 select MIPS_CPS_PM if HOTPLUG_CPU
2052 select MIPS_GIC_IPI
2053 select SMP
2054 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2055 select SYS_SUPPORTS_HOTPLUG_CPU
2056 select SYS_SUPPORTS_SMP
2057 select WEAK_ORDERING
2058 help
2059 Select this if you wish to run an SMP kernel across multiple cores
2060 within a MIPS Coherent Processing System. When this option is
2061 enabled the kernel will probe for other cores and boot them with
2062 no external assistance. It is safe to enable this when hardware
2063 support is unavailable.
2064
2065 config MIPS_CPS_PM
2066 select MIPS_CPC
2067 bool
2068
2069 config MIPS_GIC_IPI
2070 bool
2071
2072 config MIPS_CM
2073 bool
2074
2075 config MIPS_CPC
2076 bool
2077
2078 config SB1_PASS_1_WORKAROUNDS
2079 bool
2080 depends on CPU_SB1_PASS_1
2081 default y
2082
2083 config SB1_PASS_2_WORKAROUNDS
2084 bool
2085 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2086 default y
2087
2088 config SB1_PASS_2_1_WORKAROUNDS
2089 bool
2090 depends on CPU_SB1 && CPU_SB1_PASS_2
2091 default y
2092
2093
2094 config 64BIT_PHYS_ADDR
2095 bool
2096
2097 config ARCH_PHYS_ADDR_T_64BIT
2098 def_bool 64BIT_PHYS_ADDR
2099
2100 config CPU_HAS_SMARTMIPS
2101 depends on SYS_SUPPORTS_SMARTMIPS
2102 bool "Support for the SmartMIPS ASE"
2103 help
2104 SmartMIPS is a extension of the MIPS32 architecture aimed at
2105 increased security at both hardware and software level for
2106 smartcards. Enabling this option will allow proper use of the
2107 SmartMIPS instructions by Linux applications. However a kernel with
2108 this option will not work on a MIPS core without SmartMIPS core. If
2109 you don't know you probably don't have SmartMIPS and should say N
2110 here.
2111
2112 config CPU_MICROMIPS
2113 depends on SYS_SUPPORTS_MICROMIPS
2114 bool "Build kernel using microMIPS ISA"
2115 help
2116 When this option is enabled the kernel will be built using the
2117 microMIPS ISA
2118
2119 config CPU_HAS_MSA
2120 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2121 depends on CPU_SUPPORTS_MSA
2122 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2123 help
2124 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2125 and a set of SIMD instructions to operate on them. When this option
2126 is enabled the kernel will support allocating & switching MSA
2127 vector register contexts. If you know that your kernel will only be
2128 running on CPUs which do not support MSA or that your userland will
2129 not be making use of it then you may wish to say N here to reduce
2130 the size & complexity of your kernel.
2131
2132 If unsure, say Y.
2133
2134 config CPU_HAS_WB
2135 bool
2136
2137 config XKS01
2138 bool
2139
2140 #
2141 # Vectored interrupt mode is an R2 feature
2142 #
2143 config CPU_MIPSR2_IRQ_VI
2144 bool
2145
2146 #
2147 # Extended interrupt mode is an R2 feature
2148 #
2149 config CPU_MIPSR2_IRQ_EI
2150 bool
2151
2152 config CPU_HAS_SYNC
2153 bool
2154 depends on !CPU_R3000
2155 default y
2156
2157 #
2158 # CPU non-features
2159 #
2160 config CPU_DADDI_WORKAROUNDS
2161 bool
2162
2163 config CPU_R4000_WORKAROUNDS
2164 bool
2165 select CPU_R4400_WORKAROUNDS
2166
2167 config CPU_R4400_WORKAROUNDS
2168 bool
2169
2170 #
2171 # - Highmem only makes sense for the 32-bit kernel.
2172 # - The current highmem code will only work properly on physically indexed
2173 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2174 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2175 # moment we protect the user and offer the highmem option only on machines
2176 # where it's known to be safe. This will not offer highmem on a few systems
2177 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2178 # indexed CPUs but we're playing safe.
2179 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2180 # know they might have memory configurations that could make use of highmem
2181 # support.
2182 #
2183 config HIGHMEM
2184 bool "High Memory Support"
2185 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2186
2187 config CPU_SUPPORTS_HIGHMEM
2188 bool
2189
2190 config SYS_SUPPORTS_HIGHMEM
2191 bool
2192
2193 config SYS_SUPPORTS_SMARTMIPS
2194 bool
2195
2196 config SYS_SUPPORTS_MICROMIPS
2197 bool
2198
2199 config SYS_SUPPORTS_MIPS16
2200 bool
2201 help
2202 This option must be set if a kernel might be executed on a MIPS16-
2203 enabled CPU even if MIPS16 is not actually being used. In other
2204 words, it makes the kernel MIPS16-tolerant.
2205
2206 config CPU_SUPPORTS_MSA
2207 bool
2208
2209 config ARCH_FLATMEM_ENABLE
2210 def_bool y
2211 depends on !NUMA && !CPU_LOONGSON2
2212
2213 config ARCH_DISCONTIGMEM_ENABLE
2214 bool
2215 default y if SGI_IP27
2216 help
2217 Say Y to support efficient handling of discontiguous physical memory,
2218 for architectures which are either NUMA (Non-Uniform Memory Access)
2219 or have huge holes in the physical address space for other reasons.
2220 See <file:Documentation/vm/numa> for more.
2221
2222 config ARCH_SPARSEMEM_ENABLE
2223 bool
2224 select SPARSEMEM_STATIC
2225
2226 config NUMA
2227 bool "NUMA Support"
2228 depends on SYS_SUPPORTS_NUMA
2229 help
2230 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2231 Access). This option improves performance on systems with more
2232 than two nodes; on two node systems it is generally better to
2233 leave it disabled; on single node systems disable this option
2234 disabled.
2235
2236 config SYS_SUPPORTS_NUMA
2237 bool
2238
2239 config NODES_SHIFT
2240 int
2241 default "6"
2242 depends on NEED_MULTIPLE_NODES
2243
2244 config HW_PERF_EVENTS
2245 bool "Enable hardware performance counter support for perf events"
2246 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2247 default y
2248 help
2249 Enable hardware performance counter support for perf events. If
2250 disabled, perf events will use software events only.
2251
2252 source "mm/Kconfig"
2253
2254 config SMP
2255 bool "Multi-Processing support"
2256 depends on SYS_SUPPORTS_SMP
2257 help
2258 This enables support for systems with more than one CPU. If you have
2259 a system with only one CPU, say N. If you have a system with more
2260 than one CPU, say Y.
2261
2262 If you say N here, the kernel will run on uni- and multiprocessor
2263 machines, but will use only one CPU of a multiprocessor machine. If
2264 you say Y here, the kernel will run on many, but not all,
2265 uniprocessor machines. On a uniprocessor machine, the kernel
2266 will run faster if you say N here.
2267
2268 People using multiprocessor machines who say Y here should also say
2269 Y to "Enhanced Real Time Clock Support", below.
2270
2271 See also the SMP-HOWTO available at
2272 <http://www.tldp.org/docs.html#howto>.
2273
2274 If you don't know what to do here, say N.
2275
2276 config SMP_UP
2277 bool
2278
2279 config SYS_SUPPORTS_MIPS_CMP
2280 bool
2281
2282 config SYS_SUPPORTS_MIPS_CPS
2283 bool
2284
2285 config SYS_SUPPORTS_SMP
2286 bool
2287
2288 config NR_CPUS_DEFAULT_4
2289 bool
2290
2291 config NR_CPUS_DEFAULT_8
2292 bool
2293
2294 config NR_CPUS_DEFAULT_16
2295 bool
2296
2297 config NR_CPUS_DEFAULT_32
2298 bool
2299
2300 config NR_CPUS_DEFAULT_64
2301 bool
2302
2303 config NR_CPUS
2304 int "Maximum number of CPUs (2-256)"
2305 range 2 256
2306 depends on SMP
2307 default "4" if NR_CPUS_DEFAULT_4
2308 default "8" if NR_CPUS_DEFAULT_8
2309 default "16" if NR_CPUS_DEFAULT_16
2310 default "32" if NR_CPUS_DEFAULT_32
2311 default "64" if NR_CPUS_DEFAULT_64
2312 help
2313 This allows you to specify the maximum number of CPUs which this
2314 kernel will support. The maximum supported value is 32 for 32-bit
2315 kernel and 64 for 64-bit kernels; the minimum value which makes
2316 sense is 1 for Qemu (useful only for kernel debugging purposes)
2317 and 2 for all others.
2318
2319 This is purely to save memory - each supported CPU adds
2320 approximately eight kilobytes to the kernel image. For best
2321 performance should round up your number of processors to the next
2322 power of two.
2323
2324 config MIPS_PERF_SHARED_TC_COUNTERS
2325 bool
2326
2327 #
2328 # Timer Interrupt Frequency Configuration
2329 #
2330
2331 choice
2332 prompt "Timer frequency"
2333 default HZ_250
2334 help
2335 Allows the configuration of the timer frequency.
2336
2337 config HZ_48
2338 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2339
2340 config HZ_100
2341 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2342
2343 config HZ_128
2344 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2345
2346 config HZ_250
2347 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2348
2349 config HZ_256
2350 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2351
2352 config HZ_1000
2353 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2354
2355 config HZ_1024
2356 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2357
2358 endchoice
2359
2360 config SYS_SUPPORTS_48HZ
2361 bool
2362
2363 config SYS_SUPPORTS_100HZ
2364 bool
2365
2366 config SYS_SUPPORTS_128HZ
2367 bool
2368
2369 config SYS_SUPPORTS_250HZ
2370 bool
2371
2372 config SYS_SUPPORTS_256HZ
2373 bool
2374
2375 config SYS_SUPPORTS_1000HZ
2376 bool
2377
2378 config SYS_SUPPORTS_1024HZ
2379 bool
2380
2381 config SYS_SUPPORTS_ARBIT_HZ
2382 bool
2383 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2384 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2385 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2386 !SYS_SUPPORTS_1024HZ
2387
2388 config HZ
2389 int
2390 default 48 if HZ_48
2391 default 100 if HZ_100
2392 default 128 if HZ_128
2393 default 250 if HZ_250
2394 default 256 if HZ_256
2395 default 1000 if HZ_1000
2396 default 1024 if HZ_1024
2397
2398 source "kernel/Kconfig.preempt"
2399
2400 config KEXEC
2401 bool "Kexec system call"
2402 help
2403 kexec is a system call that implements the ability to shutdown your
2404 current kernel, and to start another kernel. It is like a reboot
2405 but it is independent of the system firmware. And like a reboot
2406 you can start any kernel with it, not just Linux.
2407
2408 The name comes from the similarity to the exec system call.
2409
2410 It is an ongoing process to be certain the hardware in a machine
2411 is properly shutdown, so do not be surprised if this code does not
2412 initially work for you. As of this writing the exact hardware
2413 interface is strongly in flux, so no good recommendation can be
2414 made.
2415
2416 config CRASH_DUMP
2417 bool "Kernel crash dumps"
2418 help
2419 Generate crash dump after being started by kexec.
2420 This should be normally only set in special crash dump kernels
2421 which are loaded in the main kernel with kexec-tools into
2422 a specially reserved region and then later executed after
2423 a crash by kdump/kexec. The crash dump kernel must be compiled
2424 to a memory address not used by the main kernel or firmware using
2425 PHYSICAL_START.
2426
2427 config PHYSICAL_START
2428 hex "Physical address where the kernel is loaded"
2429 default "0xffffffff84000000" if 64BIT
2430 default "0x84000000" if 32BIT
2431 depends on CRASH_DUMP
2432 help
2433 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2434 If you plan to use kernel for capturing the crash dump change
2435 this value to start of the reserved region (the "X" value as
2436 specified in the "crashkernel=YM@XM" command line boot parameter
2437 passed to the panic-ed kernel).
2438
2439 config SECCOMP
2440 bool "Enable seccomp to safely compute untrusted bytecode"
2441 depends on PROC_FS
2442 default y
2443 help
2444 This kernel feature is useful for number crunching applications
2445 that may need to compute untrusted bytecode during their
2446 execution. By using pipes or other transports made available to
2447 the process as file descriptors supporting the read/write
2448 syscalls, it's possible to isolate those applications in
2449 their own address space using seccomp. Once seccomp is
2450 enabled via /proc/<pid>/seccomp, it cannot be disabled
2451 and the task is only allowed to execute a few safe syscalls
2452 defined by each seccomp mode.
2453
2454 If unsure, say Y. Only embedded should say N here.
2455
2456 config MIPS_O32_FP64_SUPPORT
2457 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2458 depends on 32BIT || MIPS32_O32
2459 help
2460 When this is enabled, the kernel will support use of 64-bit floating
2461 point registers with binaries using the O32 ABI along with the
2462 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2463 32-bit MIPS systems this support is at the cost of increasing the
2464 size and complexity of the compiled FPU emulator. Thus if you are
2465 running a MIPS32 system and know that none of your userland binaries
2466 will require 64-bit floating point, you may wish to reduce the size
2467 of your kernel & potentially improve FP emulation performance by
2468 saying N here.
2469
2470 Although binutils currently supports use of this flag the details
2471 concerning its effect upon the O32 ABI in userland are still being
2472 worked on. In order to avoid userland becoming dependant upon current
2473 behaviour before the details have been finalised, this option should
2474 be considered experimental and only enabled by those working upon
2475 said details.
2476
2477 If unsure, say N.
2478
2479 config USE_OF
2480 bool
2481 select OF
2482 select OF_EARLY_FLATTREE
2483 select IRQ_DOMAIN
2484
2485 endmenu
2486
2487 config LOCKDEP_SUPPORT
2488 bool
2489 default y
2490
2491 config STACKTRACE_SUPPORT
2492 bool
2493 default y
2494
2495 source "init/Kconfig"
2496
2497 source "kernel/Kconfig.freezer"
2498
2499 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2500
2501 config HW_HAS_EISA
2502 bool
2503 config HW_HAS_PCI
2504 bool
2505
2506 config PCI
2507 bool "Support for PCI controller"
2508 depends on HW_HAS_PCI
2509 select PCI_DOMAINS
2510 select NO_GENERIC_PCI_IOPORT_MAP
2511 help
2512 Find out whether you have a PCI motherboard. PCI is the name of a
2513 bus system, i.e. the way the CPU talks to the other stuff inside
2514 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2515 say Y, otherwise N.
2516
2517 config HT_PCI
2518 bool "Support for HT-linked PCI"
2519 default y
2520 depends on CPU_LOONGSON3
2521 select PCI
2522 select PCI_DOMAINS
2523 help
2524 Loongson family machines use Hyper-Transport bus for inter-core
2525 connection and device connection. The PCI bus is a subordinate
2526 linked at HT. Choose Y for Loongson-3 based machines.
2527
2528 config PCI_DOMAINS
2529 bool
2530
2531 source "drivers/pci/Kconfig"
2532
2533 source "drivers/pci/pcie/Kconfig"
2534
2535 #
2536 # ISA support is now enabled via select. Too many systems still have the one
2537 # or other ISA chip on the board that users don't know about so don't expect
2538 # users to choose the right thing ...
2539 #
2540 config ISA
2541 bool
2542
2543 config EISA
2544 bool "EISA support"
2545 depends on HW_HAS_EISA
2546 select ISA
2547 select GENERIC_ISA_DMA
2548 ---help---
2549 The Extended Industry Standard Architecture (EISA) bus was
2550 developed as an open alternative to the IBM MicroChannel bus.
2551
2552 The EISA bus provided some of the features of the IBM MicroChannel
2553 bus while maintaining backward compatibility with cards made for
2554 the older ISA bus. The EISA bus saw limited use between 1988 and
2555 1995 when it was made obsolete by the PCI bus.
2556
2557 Say Y here if you are building a kernel for an EISA-based machine.
2558
2559 Otherwise, say N.
2560
2561 source "drivers/eisa/Kconfig"
2562
2563 config TC
2564 bool "TURBOchannel support"
2565 depends on MACH_DECSTATION
2566 help
2567 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2568 processors. TURBOchannel programming specifications are available
2569 at:
2570 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2571 and:
2572 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2573 Linux driver support status is documented at:
2574 <http://www.linux-mips.org/wiki/DECstation>
2575
2576 config MMU
2577 bool
2578 default y
2579
2580 config I8253
2581 bool
2582 select CLKSRC_I8253
2583 select CLKEVT_I8253
2584 select MIPS_EXTERNAL_TIMER
2585
2586 config ZONE_DMA
2587 bool
2588
2589 config ZONE_DMA32
2590 bool
2591
2592 source "drivers/pcmcia/Kconfig"
2593
2594 source "drivers/pci/hotplug/Kconfig"
2595
2596 config RAPIDIO
2597 tristate "RapidIO support"
2598 depends on PCI
2599 default n
2600 help
2601 If you say Y here, the kernel will include drivers and
2602 infrastructure code to support RapidIO interconnect devices.
2603
2604 source "drivers/rapidio/Kconfig"
2605
2606 endmenu
2607
2608 menu "Executable file formats"
2609
2610 source "fs/Kconfig.binfmt"
2611
2612 config TRAD_SIGNALS
2613 bool
2614
2615 config MIPS32_COMPAT
2616 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2617 depends on 64BIT
2618 help
2619 Select this option if you want Linux/MIPS 32-bit binary
2620 compatibility. Since all software available for Linux/MIPS is
2621 currently 32-bit you should say Y here.
2622
2623 config COMPAT
2624 bool
2625 depends on MIPS32_COMPAT
2626 select ARCH_WANT_OLD_COMPAT_IPC
2627 default y
2628
2629 config SYSVIPC_COMPAT
2630 bool
2631 depends on COMPAT && SYSVIPC
2632 default y
2633
2634 config MIPS32_O32
2635 bool "Kernel support for o32 binaries"
2636 depends on MIPS32_COMPAT
2637 help
2638 Select this option if you want to run o32 binaries. These are pure
2639 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2640 existing binaries are in this format.
2641
2642 If unsure, say Y.
2643
2644 config MIPS32_N32
2645 bool "Kernel support for n32 binaries"
2646 depends on MIPS32_COMPAT
2647 help
2648 Select this option if you want to run n32 binaries. These are
2649 64-bit binaries using 32-bit quantities for addressing and certain
2650 data that would normally be 64-bit. They are used in special
2651 cases.
2652
2653 If unsure, say N.
2654
2655 config BINFMT_ELF32
2656 bool
2657 default y if MIPS32_O32 || MIPS32_N32
2658
2659 endmenu
2660
2661 menu "Power management options"
2662
2663 config ARCH_HIBERNATION_POSSIBLE
2664 def_bool y
2665 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666
2667 config ARCH_SUSPEND_POSSIBLE
2668 def_bool y
2669 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2670
2671 source "kernel/power/Kconfig"
2672
2673 endmenu
2674
2675 config MIPS_EXTERNAL_TIMER
2676 bool
2677
2678 menu "CPU Power Management"
2679
2680 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2681 source "drivers/cpufreq/Kconfig"
2682 endif
2683
2684 source "drivers/cpuidle/Kconfig"
2685
2686 endmenu
2687
2688 source "net/Kconfig"
2689
2690 source "drivers/Kconfig"
2691
2692 source "drivers/firmware/Kconfig"
2693
2694 source "fs/Kconfig"
2695
2696 source "arch/mips/Kconfig.debug"
2697
2698 source "security/Kconfig"
2699
2700 source "crypto/Kconfig"
2701
2702 source "lib/Kconfig"
2703
2704 source "arch/mips/kvm/Kconfig"