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1 config MIPS
2 bool
3 default y
4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_IDE
9 select HAVE_OPROFILE
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
12 select HAVE_ARCH_KGDB
13 select HAVE_ARCH_SECCOMP_FILTER
14 select HAVE_ARCH_TRACEHOOK
15 select HAVE_BPF_JIT if !CPU_MICROMIPS
16 select ARCH_HAVE_CUSTOM_GPIO_H
17 select HAVE_FUNCTION_TRACER
18 select HAVE_DYNAMIC_FTRACE
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_C_RECORDMCOUNT
21 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KPROBES
23 select HAVE_KRETPROBES
24 select HAVE_DEBUG_KMEMLEAK
25 select HAVE_SYSCALL_TRACEPOINTS
26 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
28 select RTC_LIB if !MACH_LOONGSON
29 select GENERIC_ATOMIC64 if !64BIT
30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS
33 select HAVE_DMA_API_DEBUG
34 select GENERIC_IRQ_PROBE
35 select GENERIC_IRQ_SHOW
36 select GENERIC_PCI_IOMAP
37 select HAVE_ARCH_JUMP_LABEL
38 select ARCH_WANT_IPC_PARSE_VERSION
39 select IRQ_FORCED_THREADING
40 select HAVE_MEMBLOCK
41 select HAVE_MEMBLOCK_NODE_MAP
42 select ARCH_DISCARD_MEMBLOCK
43 select GENERIC_SMP_IDLE_THREAD
44 select BUILDTIME_EXTABLE_SORT
45 select GENERIC_CLOCKEVENTS
46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47 select GENERIC_CMOS_UPDATE
48 select HAVE_MOD_ARCH_SPECIFIC
49 select VIRT_TO_BUS
50 select MODULES_USE_ELF_REL if MODULES
51 select MODULES_USE_ELF_RELA if MODULES && 64BIT
52 select CLONE_BACKWARDS
53 select HAVE_DEBUG_STACKOVERFLOW
54 select HAVE_CC_STACKPROTECTOR
55 select CPU_PM if CPU_IDLE
56 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
57 select ARCH_BINFMT_ELF_STATE
58 select SYSCTL_EXCEPTION_TRACE
59 select HAVE_VIRT_CPU_ACCOUNTING_GEN
60 select HAVE_IRQ_TIME_ACCOUNTING
61
62 menu "Machine selection"
63
64 choice
65 prompt "System type"
66 default SGI_IP22
67
68 config MIPS_ALCHEMY
69 bool "Alchemy processor based machines"
70 select ARCH_PHYS_ADDR_T_64BIT
71 select CEVT_R4K
72 select CSRC_R4K
73 select IRQ_CPU
74 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
75 select SYS_HAS_CPU_MIPS32_R1
76 select SYS_SUPPORTS_32BIT_KERNEL
77 select SYS_SUPPORTS_APM_EMULATION
78 select ARCH_REQUIRE_GPIOLIB
79 select SYS_SUPPORTS_ZBOOT
80 select COMMON_CLK
81
82 config AR7
83 bool "Texas Instruments AR7"
84 select BOOT_ELF32
85 select DMA_NONCOHERENT
86 select CEVT_R4K
87 select CSRC_R4K
88 select IRQ_CPU
89 select NO_EXCEPT_FILL
90 select SWAP_IO_SPACE
91 select SYS_HAS_CPU_MIPS32_R1
92 select SYS_HAS_EARLY_PRINTK
93 select SYS_SUPPORTS_32BIT_KERNEL
94 select SYS_SUPPORTS_LITTLE_ENDIAN
95 select SYS_SUPPORTS_MIPS16
96 select SYS_SUPPORTS_ZBOOT_UART16550
97 select ARCH_REQUIRE_GPIOLIB
98 select VLYNQ
99 select HAVE_CLK
100 help
101 Support for the Texas Instruments AR7 System-on-a-Chip
102 family: TNETD7100, 7200 and 7300.
103
104 config ATH25
105 bool "Atheros AR231x/AR531x SoC support"
106 select CEVT_R4K
107 select CSRC_R4K
108 select DMA_NONCOHERENT
109 select IRQ_CPU
110 select IRQ_DOMAIN
111 select SYS_HAS_CPU_MIPS32_R1
112 select SYS_SUPPORTS_BIG_ENDIAN
113 select SYS_SUPPORTS_32BIT_KERNEL
114 select SYS_HAS_EARLY_PRINTK
115 help
116 Support for Atheros AR231x and Atheros AR531x based boards
117
118 config ATH79
119 bool "Atheros AR71XX/AR724X/AR913X based boards"
120 select ARCH_REQUIRE_GPIOLIB
121 select BOOT_RAW
122 select CEVT_R4K
123 select CSRC_R4K
124 select DMA_NONCOHERENT
125 select HAVE_CLK
126 select CLKDEV_LOOKUP
127 select IRQ_CPU
128 select MIPS_MACHINE
129 select SYS_HAS_CPU_MIPS32_R2
130 select SYS_HAS_EARLY_PRINTK
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_BIG_ENDIAN
133 select SYS_SUPPORTS_MIPS16
134 help
135 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
136
137 config BMIPS_GENERIC
138 bool "Broadcom Generic BMIPS kernel"
139 select BOOT_RAW
140 select NO_EXCEPT_FILL
141 select USE_OF
142 select CEVT_R4K
143 select CSRC_R4K
144 select SYNC_R4K
145 select COMMON_CLK
146 select BCM7038_L1_IRQ
147 select BCM7120_L2_IRQ
148 select BRCMSTB_L2_IRQ
149 select IRQ_CPU
150 select RAW_IRQ_ACCESSORS
151 select DMA_NONCOHERENT
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_LITTLE_ENDIAN
154 select SYS_SUPPORTS_BIG_ENDIAN
155 select SYS_SUPPORTS_HIGHMEM
156 select SYS_HAS_CPU_BMIPS32_3300
157 select SYS_HAS_CPU_BMIPS4350
158 select SYS_HAS_CPU_BMIPS4380
159 select SYS_HAS_CPU_BMIPS5000
160 select SWAP_IO_SPACE
161 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
162 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
163 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
164 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
165 help
166 Build a generic DT-based kernel image that boots on select
167 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
168 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
169 must be set appropriately for your board.
170
171 config BCM47XX
172 bool "Broadcom BCM47XX based boards"
173 select ARCH_WANT_OPTIONAL_GPIOLIB
174 select BOOT_RAW
175 select CEVT_R4K
176 select CSRC_R4K
177 select DMA_NONCOHERENT
178 select HW_HAS_PCI
179 select IRQ_CPU
180 select SYS_HAS_CPU_MIPS32_R1
181 select NO_EXCEPT_FILL
182 select SYS_SUPPORTS_32BIT_KERNEL
183 select SYS_SUPPORTS_LITTLE_ENDIAN
184 select SYS_SUPPORTS_MIPS16
185 select SYS_HAS_EARLY_PRINTK
186 select USE_GENERIC_EARLY_PRINTK_8250
187 select GPIOLIB
188 select LEDS_GPIO_REGISTER
189 help
190 Support for BCM47XX based boards
191
192 config BCM63XX
193 bool "Broadcom BCM63XX based boards"
194 select BOOT_RAW
195 select CEVT_R4K
196 select CSRC_R4K
197 select SYNC_R4K
198 select DMA_NONCOHERENT
199 select IRQ_CPU
200 select SYS_SUPPORTS_32BIT_KERNEL
201 select SYS_SUPPORTS_BIG_ENDIAN
202 select SYS_HAS_EARLY_PRINTK
203 select SWAP_IO_SPACE
204 select ARCH_REQUIRE_GPIOLIB
205 select HAVE_CLK
206 select MIPS_L1_CACHE_SHIFT_4
207 help
208 Support for BCM63XX based boards
209
210 config MIPS_COBALT
211 bool "Cobalt Server"
212 select CEVT_R4K
213 select CSRC_R4K
214 select CEVT_GT641XX
215 select DMA_NONCOHERENT
216 select HW_HAS_PCI
217 select I8253
218 select I8259
219 select IRQ_CPU
220 select IRQ_GT641XX
221 select PCI_GT64XXX_PCI0
222 select PCI
223 select SYS_HAS_CPU_NEVADA
224 select SYS_HAS_EARLY_PRINTK
225 select SYS_SUPPORTS_32BIT_KERNEL
226 select SYS_SUPPORTS_64BIT_KERNEL
227 select SYS_SUPPORTS_LITTLE_ENDIAN
228 select USE_GENERIC_EARLY_PRINTK_8250
229
230 config MACH_DECSTATION
231 bool "DECstations"
232 select BOOT_ELF32
233 select CEVT_DS1287
234 select CEVT_R4K if CPU_R4X00
235 select CSRC_IOASIC
236 select CSRC_R4K if CPU_R4X00
237 select CPU_DADDI_WORKAROUNDS if 64BIT
238 select CPU_R4000_WORKAROUNDS if 64BIT
239 select CPU_R4400_WORKAROUNDS if 64BIT
240 select DMA_NONCOHERENT
241 select NO_IOPORT_MAP
242 select IRQ_CPU
243 select SYS_HAS_CPU_R3000
244 select SYS_HAS_CPU_R4X00
245 select SYS_SUPPORTS_32BIT_KERNEL
246 select SYS_SUPPORTS_64BIT_KERNEL
247 select SYS_SUPPORTS_LITTLE_ENDIAN
248 select SYS_SUPPORTS_128HZ
249 select SYS_SUPPORTS_256HZ
250 select SYS_SUPPORTS_1024HZ
251 select MIPS_L1_CACHE_SHIFT_4
252 help
253 This enables support for DEC's MIPS based workstations. For details
254 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
255 DECstation porting pages on <http://decstation.unix-ag.org/>.
256
257 If you have one of the following DECstation Models you definitely
258 want to choose R4xx0 for the CPU Type:
259
260 DECstation 5000/50
261 DECstation 5000/150
262 DECstation 5000/260
263 DECsystem 5900/260
264
265 otherwise choose R3000.
266
267 config MACH_JAZZ
268 bool "Jazz family of machines"
269 select FW_ARC
270 select FW_ARC32
271 select ARCH_MAY_HAVE_PC_FDC
272 select CEVT_R4K
273 select CSRC_R4K
274 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
275 select GENERIC_ISA_DMA
276 select HAVE_PCSPKR_PLATFORM
277 select IRQ_CPU
278 select I8253
279 select I8259
280 select ISA
281 select SYS_HAS_CPU_R4X00
282 select SYS_SUPPORTS_32BIT_KERNEL
283 select SYS_SUPPORTS_64BIT_KERNEL
284 select SYS_SUPPORTS_100HZ
285 help
286 This a family of machines based on the MIPS R4030 chipset which was
287 used by several vendors to build RISC/os and Windows NT workstations.
288 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
289 Olivetti M700-10 workstations.
290
291 config MACH_JZ4740
292 bool "Ingenic JZ4740 based machines"
293 select SYS_HAS_CPU_MIPS32_R1
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_LITTLE_ENDIAN
296 select SYS_SUPPORTS_ZBOOT_UART16550
297 select DMA_NONCOHERENT
298 select IRQ_CPU
299 select ARCH_REQUIRE_GPIOLIB
300 select SYS_HAS_EARLY_PRINTK
301 select HAVE_CLK
302 select GENERIC_IRQ_CHIP
303
304 config LANTIQ
305 bool "Lantiq based platforms"
306 select DMA_NONCOHERENT
307 select IRQ_CPU
308 select CEVT_R4K
309 select CSRC_R4K
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_SUPPORTS_BIG_ENDIAN
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_MIPS16
315 select SYS_SUPPORTS_MULTITHREADING
316 select SYS_HAS_EARLY_PRINTK
317 select ARCH_REQUIRE_GPIOLIB
318 select SWAP_IO_SPACE
319 select BOOT_RAW
320 select HAVE_MACH_CLKDEV
321 select CLKDEV_LOOKUP
322 select USE_OF
323 select PINCTRL
324 select PINCTRL_LANTIQ
325 select ARCH_HAS_RESET_CONTROLLER
326 select RESET_CONTROLLER
327
328 config LASAT
329 bool "LASAT Networks platforms"
330 select CEVT_R4K
331 select CRC32
332 select CSRC_R4K
333 select DMA_NONCOHERENT
334 select SYS_HAS_EARLY_PRINTK
335 select HW_HAS_PCI
336 select IRQ_CPU
337 select PCI_GT64XXX_PCI0
338 select MIPS_NILE4
339 select R5000_CPU_SCACHE
340 select SYS_HAS_CPU_R5000
341 select SYS_SUPPORTS_32BIT_KERNEL
342 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
343 select SYS_SUPPORTS_LITTLE_ENDIAN
344
345 config MACH_LOONGSON
346 bool "Loongson family of machines"
347 select SYS_SUPPORTS_ZBOOT
348 help
349 This enables the support of Loongson family of machines.
350
351 Loongson is a family of general-purpose MIPS-compatible CPUs.
352 developed at Institute of Computing Technology (ICT),
353 Chinese Academy of Sciences (CAS) in the People's Republic
354 of China. The chief architect is Professor Weiwu Hu.
355
356 config MACH_LOONGSON1
357 bool "Loongson 1 family of machines"
358 select SYS_SUPPORTS_ZBOOT
359 help
360 This enables support for the Loongson 1 based machines.
361
362 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
363 the ICT (Institute of Computing Technology) and the Chinese Academy
364 of Sciences.
365
366 config MACH_PISTACHIO
367 bool "IMG Pistachio SoC based boards"
368 select ARCH_REQUIRE_GPIOLIB
369 select BOOT_ELF32
370 select BOOT_RAW
371 select CEVT_R4K
372 select CLKSRC_MIPS_GIC
373 select COMMON_CLK
374 select CSRC_R4K
375 select DMA_MAYBE_COHERENT
376 select IRQ_CPU
377 select LIBFDT
378 select MFD_SYSCON
379 select MIPS_CPU_SCACHE
380 select MIPS_GIC
381 select PINCTRL
382 select REGULATOR
383 select SYS_HAS_CPU_MIPS32_R2
384 select SYS_SUPPORTS_32BIT_KERNEL
385 select SYS_SUPPORTS_LITTLE_ENDIAN
386 select SYS_SUPPORTS_MIPS_CPS
387 select SYS_SUPPORTS_MULTITHREADING
388 select SYS_SUPPORTS_ZBOOT
389 select USE_OF
390 help
391 This enables support for the IMG Pistachio SoC platform.
392
393 config MIPS_MALTA
394 bool "MIPS Malta board"
395 select ARCH_MAY_HAVE_PC_FDC
396 select BOOT_ELF32
397 select BOOT_RAW
398 select CEVT_R4K
399 select CSRC_R4K
400 select CLKSRC_MIPS_GIC
401 select DMA_MAYBE_COHERENT
402 select GENERIC_ISA_DMA
403 select HAVE_PCSPKR_PLATFORM
404 select IRQ_CPU
405 select MIPS_GIC
406 select HW_HAS_PCI
407 select I8253
408 select I8259
409 select MIPS_BONITO64
410 select MIPS_CPU_SCACHE
411 select MIPS_L1_CACHE_SHIFT_6
412 select PCI_GT64XXX_PCI0
413 select MIPS_MSC
414 select SWAP_IO_SPACE
415 select SYS_HAS_CPU_MIPS32_R1
416 select SYS_HAS_CPU_MIPS32_R2
417 select SYS_HAS_CPU_MIPS32_R3_5
418 select SYS_HAS_CPU_MIPS32_R6
419 select SYS_HAS_CPU_MIPS64_R1
420 select SYS_HAS_CPU_MIPS64_R2
421 select SYS_HAS_CPU_MIPS64_R6
422 select SYS_HAS_CPU_NEVADA
423 select SYS_HAS_CPU_RM7000
424 select SYS_SUPPORTS_32BIT_KERNEL
425 select SYS_SUPPORTS_64BIT_KERNEL
426 select SYS_SUPPORTS_BIG_ENDIAN
427 select SYS_SUPPORTS_LITTLE_ENDIAN
428 select SYS_SUPPORTS_MICROMIPS
429 select SYS_SUPPORTS_MIPS_CMP
430 select SYS_SUPPORTS_MIPS_CPS
431 select SYS_SUPPORTS_MIPS16
432 select SYS_SUPPORTS_MULTITHREADING
433 select SYS_SUPPORTS_SMARTMIPS
434 select SYS_SUPPORTS_ZBOOT
435 help
436 This enables support for the MIPS Technologies Malta evaluation
437 board.
438
439 config MIPS_SEAD3
440 bool "MIPS SEAD3 board"
441 select BOOT_ELF32
442 select BOOT_RAW
443 select BUILTIN_DTB
444 select CEVT_R4K
445 select CSRC_R4K
446 select CLKSRC_MIPS_GIC
447 select CPU_MIPSR2_IRQ_VI
448 select CPU_MIPSR2_IRQ_EI
449 select DMA_NONCOHERENT
450 select IRQ_CPU
451 select MIPS_GIC
452 select LIBFDT
453 select MIPS_MSC
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS64_R1
457 select SYS_HAS_EARLY_PRINTK
458 select SYS_SUPPORTS_32BIT_KERNEL
459 select SYS_SUPPORTS_64BIT_KERNEL
460 select SYS_SUPPORTS_BIG_ENDIAN
461 select SYS_SUPPORTS_LITTLE_ENDIAN
462 select SYS_SUPPORTS_SMARTMIPS
463 select SYS_SUPPORTS_MICROMIPS
464 select SYS_SUPPORTS_MIPS16
465 select USB_EHCI_BIG_ENDIAN_DESC
466 select USB_EHCI_BIG_ENDIAN_MMIO
467 select USE_OF
468 help
469 This enables support for the MIPS Technologies SEAD3 evaluation
470 board.
471
472 config NEC_MARKEINS
473 bool "NEC EMMA2RH Mark-eins board"
474 select SOC_EMMA2RH
475 select HW_HAS_PCI
476 help
477 This enables support for the NEC Electronics Mark-eins boards.
478
479 config MACH_VR41XX
480 bool "NEC VR4100 series based machines"
481 select CEVT_R4K
482 select CSRC_R4K
483 select SYS_HAS_CPU_VR41XX
484 select SYS_SUPPORTS_MIPS16
485 select ARCH_REQUIRE_GPIOLIB
486
487 config NXP_STB220
488 bool "NXP STB220 board"
489 select SOC_PNX833X
490 help
491 Support for NXP Semiconductors STB220 Development Board.
492
493 config NXP_STB225
494 bool "NXP 225 board"
495 select SOC_PNX833X
496 select SOC_PNX8335
497 help
498 Support for NXP Semiconductors STB225 Development Board.
499
500 config PMC_MSP
501 bool "PMC-Sierra MSP chipsets"
502 select CEVT_R4K
503 select CSRC_R4K
504 select DMA_NONCOHERENT
505 select SWAP_IO_SPACE
506 select NO_EXCEPT_FILL
507 select BOOT_RAW
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_SUPPORTS_32BIT_KERNEL
511 select SYS_SUPPORTS_BIG_ENDIAN
512 select SYS_SUPPORTS_MIPS16
513 select IRQ_CPU
514 select SERIAL_8250
515 select SERIAL_8250_CONSOLE
516 select USB_EHCI_BIG_ENDIAN_MMIO
517 select USB_EHCI_BIG_ENDIAN_DESC
518 help
519 This adds support for the PMC-Sierra family of Multi-Service
520 Processor System-On-A-Chips. These parts include a number
521 of integrated peripherals, interfaces and DSPs in addition to
522 a variety of MIPS cores.
523
524 config RALINK
525 bool "Ralink based machines"
526 select CEVT_R4K
527 select CSRC_R4K
528 select BOOT_RAW
529 select DMA_NONCOHERENT
530 select IRQ_CPU
531 select USE_OF
532 select SYS_HAS_CPU_MIPS32_R1
533 select SYS_HAS_CPU_MIPS32_R2
534 select SYS_SUPPORTS_32BIT_KERNEL
535 select SYS_SUPPORTS_LITTLE_ENDIAN
536 select SYS_SUPPORTS_MIPS16
537 select SYS_HAS_EARLY_PRINTK
538 select HAVE_MACH_CLKDEV
539 select CLKDEV_LOOKUP
540 select ARCH_HAS_RESET_CONTROLLER
541 select RESET_CONTROLLER
542
543 config SGI_IP22
544 bool "SGI IP22 (Indy/Indigo2)"
545 select FW_ARC
546 select FW_ARC32
547 select BOOT_ELF32
548 select CEVT_R4K
549 select CSRC_R4K
550 select DEFAULT_SGI_PARTITION
551 select DMA_NONCOHERENT
552 select HW_HAS_EISA
553 select I8253
554 select I8259
555 select IP22_CPU_SCACHE
556 select IRQ_CPU
557 select GENERIC_ISA_DMA_SUPPORT_BROKEN
558 select SGI_HAS_I8042
559 select SGI_HAS_INDYDOG
560 select SGI_HAS_HAL2
561 select SGI_HAS_SEEQ
562 select SGI_HAS_WD93
563 select SGI_HAS_ZILOG
564 select SWAP_IO_SPACE
565 select SYS_HAS_CPU_R4X00
566 select SYS_HAS_CPU_R5000
567 #
568 # Disable EARLY_PRINTK for now since it leads to overwritten prom
569 # memory during early boot on some machines.
570 #
571 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
572 # for a more details discussion
573 #
574 # select SYS_HAS_EARLY_PRINTK
575 select SYS_SUPPORTS_32BIT_KERNEL
576 select SYS_SUPPORTS_64BIT_KERNEL
577 select SYS_SUPPORTS_BIG_ENDIAN
578 select MIPS_L1_CACHE_SHIFT_7
579 help
580 This are the SGI Indy, Challenge S and Indigo2, as well as certain
581 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
582 that runs on these, say Y here.
583
584 config SGI_IP27
585 bool "SGI IP27 (Origin200/2000)"
586 select FW_ARC
587 select FW_ARC64
588 select BOOT_ELF64
589 select DEFAULT_SGI_PARTITION
590 select DMA_COHERENT
591 select SYS_HAS_EARLY_PRINTK
592 select HW_HAS_PCI
593 select NR_CPUS_DEFAULT_64
594 select SYS_HAS_CPU_R10000
595 select SYS_SUPPORTS_64BIT_KERNEL
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_NUMA
598 select SYS_SUPPORTS_SMP
599 select MIPS_L1_CACHE_SHIFT_7
600 help
601 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
602 workstations. To compile a Linux kernel that runs on these, say Y
603 here.
604
605 config SGI_IP28
606 bool "SGI IP28 (Indigo2 R10k)"
607 select FW_ARC
608 select FW_ARC64
609 select BOOT_ELF64
610 select CEVT_R4K
611 select CSRC_R4K
612 select DEFAULT_SGI_PARTITION
613 select DMA_NONCOHERENT
614 select GENERIC_ISA_DMA_SUPPORT_BROKEN
615 select IRQ_CPU
616 select HW_HAS_EISA
617 select I8253
618 select I8259
619 select SGI_HAS_I8042
620 select SGI_HAS_INDYDOG
621 select SGI_HAS_HAL2
622 select SGI_HAS_SEEQ
623 select SGI_HAS_WD93
624 select SGI_HAS_ZILOG
625 select SWAP_IO_SPACE
626 select SYS_HAS_CPU_R10000
627 #
628 # Disable EARLY_PRINTK for now since it leads to overwritten prom
629 # memory during early boot on some machines.
630 #
631 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
632 # for a more details discussion
633 #
634 # select SYS_HAS_EARLY_PRINTK
635 select SYS_SUPPORTS_64BIT_KERNEL
636 select SYS_SUPPORTS_BIG_ENDIAN
637 select MIPS_L1_CACHE_SHIFT_7
638 help
639 This is the SGI Indigo2 with R10000 processor. To compile a Linux
640 kernel that runs on these, say Y here.
641
642 config SGI_IP32
643 bool "SGI IP32 (O2)"
644 select FW_ARC
645 select FW_ARC32
646 select BOOT_ELF32
647 select CEVT_R4K
648 select CSRC_R4K
649 select DMA_NONCOHERENT
650 select HW_HAS_PCI
651 select IRQ_CPU
652 select R5000_CPU_SCACHE
653 select RM7000_CPU_SCACHE
654 select SYS_HAS_CPU_R5000
655 select SYS_HAS_CPU_R10000 if BROKEN
656 select SYS_HAS_CPU_RM7000
657 select SYS_HAS_CPU_NEVADA
658 select SYS_SUPPORTS_64BIT_KERNEL
659 select SYS_SUPPORTS_BIG_ENDIAN
660 help
661 If you want this kernel to run on SGI O2 workstation, say Y here.
662
663 config SIBYTE_CRHINE
664 bool "Sibyte BCM91120C-CRhine"
665 select BOOT_ELF32
666 select DMA_COHERENT
667 select SIBYTE_BCM1120
668 select SWAP_IO_SPACE
669 select SYS_HAS_CPU_SB1
670 select SYS_SUPPORTS_BIG_ENDIAN
671 select SYS_SUPPORTS_LITTLE_ENDIAN
672
673 config SIBYTE_CARMEL
674 bool "Sibyte BCM91120x-Carmel"
675 select BOOT_ELF32
676 select DMA_COHERENT
677 select SIBYTE_BCM1120
678 select SWAP_IO_SPACE
679 select SYS_HAS_CPU_SB1
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_LITTLE_ENDIAN
682
683 config SIBYTE_CRHONE
684 bool "Sibyte BCM91125C-CRhone"
685 select BOOT_ELF32
686 select DMA_COHERENT
687 select SIBYTE_BCM1125
688 select SWAP_IO_SPACE
689 select SYS_HAS_CPU_SB1
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select SYS_SUPPORTS_HIGHMEM
692 select SYS_SUPPORTS_LITTLE_ENDIAN
693
694 config SIBYTE_RHONE
695 bool "Sibyte BCM91125E-Rhone"
696 select BOOT_ELF32
697 select DMA_COHERENT
698 select SIBYTE_BCM1125H
699 select SWAP_IO_SPACE
700 select SYS_HAS_CPU_SB1
701 select SYS_SUPPORTS_BIG_ENDIAN
702 select SYS_SUPPORTS_LITTLE_ENDIAN
703
704 config SIBYTE_SWARM
705 bool "Sibyte BCM91250A-SWARM"
706 select BOOT_ELF32
707 select DMA_COHERENT
708 select HAVE_PATA_PLATFORM
709 select SIBYTE_SB1250
710 select SWAP_IO_SPACE
711 select SYS_HAS_CPU_SB1
712 select SYS_SUPPORTS_BIG_ENDIAN
713 select SYS_SUPPORTS_HIGHMEM
714 select SYS_SUPPORTS_LITTLE_ENDIAN
715 select ZONE_DMA32 if 64BIT
716
717 config SIBYTE_LITTLESUR
718 bool "Sibyte BCM91250C2-LittleSur"
719 select BOOT_ELF32
720 select DMA_COHERENT
721 select HAVE_PATA_PLATFORM
722 select SIBYTE_SB1250
723 select SWAP_IO_SPACE
724 select SYS_HAS_CPU_SB1
725 select SYS_SUPPORTS_BIG_ENDIAN
726 select SYS_SUPPORTS_HIGHMEM
727 select SYS_SUPPORTS_LITTLE_ENDIAN
728
729 config SIBYTE_SENTOSA
730 bool "Sibyte BCM91250E-Sentosa"
731 select BOOT_ELF32
732 select DMA_COHERENT
733 select SIBYTE_SB1250
734 select SWAP_IO_SPACE
735 select SYS_HAS_CPU_SB1
736 select SYS_SUPPORTS_BIG_ENDIAN
737 select SYS_SUPPORTS_LITTLE_ENDIAN
738
739 config SIBYTE_BIGSUR
740 bool "Sibyte BCM91480B-BigSur"
741 select BOOT_ELF32
742 select DMA_COHERENT
743 select NR_CPUS_DEFAULT_4
744 select SIBYTE_BCM1x80
745 select SWAP_IO_SPACE
746 select SYS_HAS_CPU_SB1
747 select SYS_SUPPORTS_BIG_ENDIAN
748 select SYS_SUPPORTS_HIGHMEM
749 select SYS_SUPPORTS_LITTLE_ENDIAN
750 select ZONE_DMA32 if 64BIT
751
752 config SNI_RM
753 bool "SNI RM200/300/400"
754 select FW_ARC if CPU_LITTLE_ENDIAN
755 select FW_ARC32 if CPU_LITTLE_ENDIAN
756 select FW_SNIPROM if CPU_BIG_ENDIAN
757 select ARCH_MAY_HAVE_PC_FDC
758 select BOOT_ELF32
759 select CEVT_R4K
760 select CSRC_R4K
761 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
762 select DMA_NONCOHERENT
763 select GENERIC_ISA_DMA
764 select HAVE_PCSPKR_PLATFORM
765 select HW_HAS_EISA
766 select HW_HAS_PCI
767 select IRQ_CPU
768 select I8253
769 select I8259
770 select ISA
771 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
772 select SYS_HAS_CPU_R4X00
773 select SYS_HAS_CPU_R5000
774 select SYS_HAS_CPU_R10000
775 select R5000_CPU_SCACHE
776 select SYS_HAS_EARLY_PRINTK
777 select SYS_SUPPORTS_32BIT_KERNEL
778 select SYS_SUPPORTS_64BIT_KERNEL
779 select SYS_SUPPORTS_BIG_ENDIAN
780 select SYS_SUPPORTS_HIGHMEM
781 select SYS_SUPPORTS_LITTLE_ENDIAN
782 help
783 The SNI RM200/300/400 are MIPS-based machines manufactured by
784 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
785 Technology and now in turn merged with Fujitsu. Say Y here to
786 support this machine type.
787
788 config MACH_TX39XX
789 bool "Toshiba TX39 series based machines"
790
791 config MACH_TX49XX
792 bool "Toshiba TX49 series based machines"
793
794 config MIKROTIK_RB532
795 bool "Mikrotik RB532 boards"
796 select CEVT_R4K
797 select CSRC_R4K
798 select DMA_NONCOHERENT
799 select HW_HAS_PCI
800 select IRQ_CPU
801 select SYS_HAS_CPU_MIPS32_R1
802 select SYS_SUPPORTS_32BIT_KERNEL
803 select SYS_SUPPORTS_LITTLE_ENDIAN
804 select SWAP_IO_SPACE
805 select BOOT_RAW
806 select ARCH_REQUIRE_GPIOLIB
807 select MIPS_L1_CACHE_SHIFT_4
808 help
809 Support the Mikrotik(tm) RouterBoard 532 series,
810 based on the IDT RC32434 SoC.
811
812 config CAVIUM_OCTEON_SOC
813 bool "Cavium Networks Octeon SoC based boards"
814 select CEVT_R4K
815 select ARCH_PHYS_ADDR_T_64BIT
816 select DMA_COHERENT
817 select SYS_SUPPORTS_64BIT_KERNEL
818 select SYS_SUPPORTS_BIG_ENDIAN
819 select EDAC_SUPPORT
820 select SYS_SUPPORTS_LITTLE_ENDIAN
821 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
822 select SYS_HAS_EARLY_PRINTK
823 select SYS_HAS_CPU_CAVIUM_OCTEON
824 select SWAP_IO_SPACE
825 select HW_HAS_PCI
826 select ZONE_DMA32
827 select HOLES_IN_ZONE
828 select ARCH_REQUIRE_GPIOLIB
829 select LIBFDT
830 select USE_OF
831 select ARCH_SPARSEMEM_ENABLE
832 select SYS_SUPPORTS_SMP
833 select NR_CPUS_DEFAULT_16
834 select BUILTIN_DTB
835 select MTD_COMPLEX_MAPPINGS
836 help
837 This option supports all of the Octeon reference boards from Cavium
838 Networks. It builds a kernel that dynamically determines the Octeon
839 CPU type and supports all known board reference implementations.
840 Some of the supported boards are:
841 EBT3000
842 EBH3000
843 EBH3100
844 Thunder
845 Kodama
846 Hikari
847 Say Y here for most Octeon reference boards.
848
849 config NLM_XLR_BOARD
850 bool "Netlogic XLR/XLS based systems"
851 select BOOT_ELF32
852 select NLM_COMMON
853 select SYS_HAS_CPU_XLR
854 select SYS_SUPPORTS_SMP
855 select HW_HAS_PCI
856 select SWAP_IO_SPACE
857 select SYS_SUPPORTS_32BIT_KERNEL
858 select SYS_SUPPORTS_64BIT_KERNEL
859 select ARCH_PHYS_ADDR_T_64BIT
860 select SYS_SUPPORTS_BIG_ENDIAN
861 select SYS_SUPPORTS_HIGHMEM
862 select DMA_COHERENT
863 select NR_CPUS_DEFAULT_32
864 select CEVT_R4K
865 select CSRC_R4K
866 select IRQ_CPU
867 select ZONE_DMA32 if 64BIT
868 select SYNC_R4K
869 select SYS_HAS_EARLY_PRINTK
870 select SYS_SUPPORTS_ZBOOT
871 select SYS_SUPPORTS_ZBOOT_UART16550
872 help
873 Support for systems based on Netlogic XLR and XLS processors.
874 Say Y here if you have a XLR or XLS based board.
875
876 config NLM_XLP_BOARD
877 bool "Netlogic XLP based systems"
878 select BOOT_ELF32
879 select NLM_COMMON
880 select SYS_HAS_CPU_XLP
881 select SYS_SUPPORTS_SMP
882 select HW_HAS_PCI
883 select SYS_SUPPORTS_32BIT_KERNEL
884 select SYS_SUPPORTS_64BIT_KERNEL
885 select ARCH_PHYS_ADDR_T_64BIT
886 select SYS_SUPPORTS_BIG_ENDIAN
887 select SYS_SUPPORTS_LITTLE_ENDIAN
888 select SYS_SUPPORTS_HIGHMEM
889 select DMA_COHERENT
890 select NR_CPUS_DEFAULT_32
891 select CEVT_R4K
892 select CSRC_R4K
893 select IRQ_CPU
894 select ZONE_DMA32 if 64BIT
895 select SYNC_R4K
896 select SYS_HAS_EARLY_PRINTK
897 select USE_OF
898 select SYS_SUPPORTS_ZBOOT
899 select SYS_SUPPORTS_ZBOOT_UART16550
900 help
901 This board is based on Netlogic XLP Processor.
902 Say Y here if you have a XLP based board.
903
904 config MIPS_PARAVIRT
905 bool "Para-Virtualized guest system"
906 select CEVT_R4K
907 select CSRC_R4K
908 select DMA_COHERENT
909 select SYS_SUPPORTS_64BIT_KERNEL
910 select SYS_SUPPORTS_32BIT_KERNEL
911 select SYS_SUPPORTS_BIG_ENDIAN
912 select SYS_SUPPORTS_SMP
913 select NR_CPUS_DEFAULT_4
914 select SYS_HAS_EARLY_PRINTK
915 select SYS_HAS_CPU_MIPS32_R2
916 select SYS_HAS_CPU_MIPS64_R2
917 select SYS_HAS_CPU_CAVIUM_OCTEON
918 select HW_HAS_PCI
919 select SWAP_IO_SPACE
920 help
921 This option supports guest running under ????
922
923 endchoice
924
925 source "arch/mips/alchemy/Kconfig"
926 source "arch/mips/ath25/Kconfig"
927 source "arch/mips/ath79/Kconfig"
928 source "arch/mips/bcm47xx/Kconfig"
929 source "arch/mips/bcm63xx/Kconfig"
930 source "arch/mips/bmips/Kconfig"
931 source "arch/mips/jazz/Kconfig"
932 source "arch/mips/jz4740/Kconfig"
933 source "arch/mips/lantiq/Kconfig"
934 source "arch/mips/lasat/Kconfig"
935 source "arch/mips/pmcs-msp71xx/Kconfig"
936 source "arch/mips/ralink/Kconfig"
937 source "arch/mips/sgi-ip27/Kconfig"
938 source "arch/mips/sibyte/Kconfig"
939 source "arch/mips/txx9/Kconfig"
940 source "arch/mips/vr41xx/Kconfig"
941 source "arch/mips/cavium-octeon/Kconfig"
942 source "arch/mips/loongson/Kconfig"
943 source "arch/mips/loongson1/Kconfig"
944 source "arch/mips/netlogic/Kconfig"
945 source "arch/mips/paravirt/Kconfig"
946
947 endmenu
948
949 config RWSEM_GENERIC_SPINLOCK
950 bool
951 default y
952
953 config RWSEM_XCHGADD_ALGORITHM
954 bool
955
956 config ARCH_HAS_ILOG2_U32
957 bool
958 default n
959
960 config ARCH_HAS_ILOG2_U64
961 bool
962 default n
963
964 config GENERIC_HWEIGHT
965 bool
966 default y
967
968 config GENERIC_CALIBRATE_DELAY
969 bool
970 default y
971
972 config SCHED_OMIT_FRAME_POINTER
973 bool
974 default y
975
976 #
977 # Select some configuration options automatically based on user selections.
978 #
979 config FW_ARC
980 bool
981
982 config ARCH_MAY_HAVE_PC_FDC
983 bool
984
985 config BOOT_RAW
986 bool
987
988 config CEVT_BCM1480
989 bool
990
991 config CEVT_DS1287
992 bool
993
994 config CEVT_GT641XX
995 bool
996
997 config CEVT_R4K
998 bool
999
1000 config CEVT_SB1250
1001 bool
1002
1003 config CEVT_TXX9
1004 bool
1005
1006 config CSRC_BCM1480
1007 bool
1008
1009 config CSRC_IOASIC
1010 bool
1011
1012 config CSRC_R4K
1013 bool
1014
1015 config CSRC_SB1250
1016 bool
1017
1018 config GPIO_TXX9
1019 select ARCH_REQUIRE_GPIOLIB
1020 bool
1021
1022 config FW_CFE
1023 bool
1024
1025 config ARCH_DMA_ADDR_T_64BIT
1026 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1027
1028 config DMA_MAYBE_COHERENT
1029 select DMA_NONCOHERENT
1030 bool
1031
1032 config DMA_COHERENT
1033 bool
1034
1035 config DMA_NONCOHERENT
1036 bool
1037 select NEED_DMA_MAP_STATE
1038
1039 config NEED_DMA_MAP_STATE
1040 bool
1041
1042 config SYS_HAS_EARLY_PRINTK
1043 bool
1044
1045 config HOTPLUG_CPU
1046 bool "Support for hot-pluggable CPUs"
1047 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1048 help
1049 Say Y here to allow turning CPUs off and on. CPUs can be
1050 controlled through /sys/devices/system/cpu.
1051 (Note: power management support will enable this option
1052 automatically on SMP systems. )
1053 Say N if you want to disable CPU hotplug.
1054
1055 config SYS_SUPPORTS_HOTPLUG_CPU
1056 bool
1057
1058 config I8259
1059 bool
1060 select IRQ_DOMAIN
1061
1062 config MIPS_BONITO64
1063 bool
1064
1065 config MIPS_MSC
1066 bool
1067
1068 config MIPS_NILE4
1069 bool
1070
1071 config SYNC_R4K
1072 bool
1073
1074 config MIPS_MACHINE
1075 def_bool n
1076
1077 config NO_IOPORT_MAP
1078 def_bool n
1079
1080 config GENERIC_CSUM
1081 bool
1082
1083 config GENERIC_ISA_DMA
1084 bool
1085 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1086 select ISA_DMA_API
1087
1088 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1089 bool
1090 select GENERIC_ISA_DMA
1091
1092 config ISA_DMA_API
1093 bool
1094
1095 config HOLES_IN_ZONE
1096 bool
1097
1098 #
1099 # Endianness selection. Sufficiently obscure so many users don't know what to
1100 # answer,so we try hard to limit the available choices. Also the use of a
1101 # choice statement should be more obvious to the user.
1102 #
1103 choice
1104 prompt "Endianness selection"
1105 help
1106 Some MIPS machines can be configured for either little or big endian
1107 byte order. These modes require different kernels and a different
1108 Linux distribution. In general there is one preferred byteorder for a
1109 particular system but some systems are just as commonly used in the
1110 one or the other endianness.
1111
1112 config CPU_BIG_ENDIAN
1113 bool "Big endian"
1114 depends on SYS_SUPPORTS_BIG_ENDIAN
1115
1116 config CPU_LITTLE_ENDIAN
1117 bool "Little endian"
1118 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1119
1120 endchoice
1121
1122 config EXPORT_UASM
1123 bool
1124
1125 config SYS_SUPPORTS_APM_EMULATION
1126 bool
1127
1128 config SYS_SUPPORTS_BIG_ENDIAN
1129 bool
1130
1131 config SYS_SUPPORTS_LITTLE_ENDIAN
1132 bool
1133
1134 config SYS_SUPPORTS_HUGETLBFS
1135 bool
1136 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1137 default y
1138
1139 config MIPS_HUGE_TLB_SUPPORT
1140 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1141
1142 config IRQ_CPU
1143 bool
1144 select IRQ_DOMAIN
1145
1146 config IRQ_CPU_RM7K
1147 bool
1148
1149 config IRQ_MSP_SLP
1150 bool
1151
1152 config IRQ_MSP_CIC
1153 bool
1154
1155 config IRQ_TXX9
1156 bool
1157
1158 config IRQ_GT641XX
1159 bool
1160
1161 config PCI_GT64XXX_PCI0
1162 bool
1163
1164 config NO_EXCEPT_FILL
1165 bool
1166
1167 config SOC_EMMA2RH
1168 bool
1169 select CEVT_R4K
1170 select CSRC_R4K
1171 select DMA_NONCOHERENT
1172 select IRQ_CPU
1173 select SWAP_IO_SPACE
1174 select SYS_HAS_CPU_R5500
1175 select SYS_SUPPORTS_32BIT_KERNEL
1176 select SYS_SUPPORTS_64BIT_KERNEL
1177 select SYS_SUPPORTS_BIG_ENDIAN
1178
1179 config SOC_PNX833X
1180 bool
1181 select CEVT_R4K
1182 select CSRC_R4K
1183 select IRQ_CPU
1184 select DMA_NONCOHERENT
1185 select SYS_HAS_CPU_MIPS32_R2
1186 select SYS_SUPPORTS_32BIT_KERNEL
1187 select SYS_SUPPORTS_LITTLE_ENDIAN
1188 select SYS_SUPPORTS_BIG_ENDIAN
1189 select SYS_SUPPORTS_MIPS16
1190 select CPU_MIPSR2_IRQ_VI
1191
1192 config SOC_PNX8335
1193 bool
1194 select SOC_PNX833X
1195
1196 config MIPS_SPRAM
1197 bool
1198
1199 config SWAP_IO_SPACE
1200 bool
1201
1202 config SGI_HAS_INDYDOG
1203 bool
1204
1205 config SGI_HAS_HAL2
1206 bool
1207
1208 config SGI_HAS_SEEQ
1209 bool
1210
1211 config SGI_HAS_WD93
1212 bool
1213
1214 config SGI_HAS_ZILOG
1215 bool
1216
1217 config SGI_HAS_I8042
1218 bool
1219
1220 config DEFAULT_SGI_PARTITION
1221 bool
1222
1223 config FW_ARC32
1224 bool
1225
1226 config FW_SNIPROM
1227 bool
1228
1229 config BOOT_ELF32
1230 bool
1231
1232 config MIPS_L1_CACHE_SHIFT_4
1233 bool
1234
1235 config MIPS_L1_CACHE_SHIFT_5
1236 bool
1237
1238 config MIPS_L1_CACHE_SHIFT_6
1239 bool
1240
1241 config MIPS_L1_CACHE_SHIFT_7
1242 bool
1243
1244 config MIPS_L1_CACHE_SHIFT
1245 int
1246 default "7" if MIPS_L1_CACHE_SHIFT_7
1247 default "6" if MIPS_L1_CACHE_SHIFT_6
1248 default "5" if MIPS_L1_CACHE_SHIFT_5
1249 default "4" if MIPS_L1_CACHE_SHIFT_4
1250 default "5"
1251
1252 config HAVE_STD_PC_SERIAL_PORT
1253 bool
1254
1255 config ARC_CONSOLE
1256 bool "ARC console support"
1257 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1258
1259 config ARC_MEMORY
1260 bool
1261 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1262 default y
1263
1264 config ARC_PROMLIB
1265 bool
1266 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1267 default y
1268
1269 config FW_ARC64
1270 bool
1271
1272 config BOOT_ELF64
1273 bool
1274
1275 menu "CPU selection"
1276
1277 choice
1278 prompt "CPU type"
1279 default CPU_R4X00
1280
1281 config CPU_LOONGSON3
1282 bool "Loongson 3 CPU"
1283 depends on SYS_HAS_CPU_LOONGSON3
1284 select CPU_SUPPORTS_64BIT_KERNEL
1285 select CPU_SUPPORTS_HIGHMEM
1286 select CPU_SUPPORTS_HUGEPAGES
1287 select WEAK_ORDERING
1288 select WEAK_REORDERING_BEYOND_LLSC
1289 help
1290 The Loongson 3 processor implements the MIPS64R2 instruction
1291 set with many extensions.
1292
1293 config CPU_LOONGSON2E
1294 bool "Loongson 2E"
1295 depends on SYS_HAS_CPU_LOONGSON2E
1296 select CPU_LOONGSON2
1297 help
1298 The Loongson 2E processor implements the MIPS III instruction set
1299 with many extensions.
1300
1301 It has an internal FPGA northbridge, which is compatible to
1302 bonito64.
1303
1304 config CPU_LOONGSON2F
1305 bool "Loongson 2F"
1306 depends on SYS_HAS_CPU_LOONGSON2F
1307 select CPU_LOONGSON2
1308 select ARCH_REQUIRE_GPIOLIB
1309 help
1310 The Loongson 2F processor implements the MIPS III instruction set
1311 with many extensions.
1312
1313 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1314 have a similar programming interface with FPGA northbridge used in
1315 Loongson2E.
1316
1317 config CPU_LOONGSON1B
1318 bool "Loongson 1B"
1319 depends on SYS_HAS_CPU_LOONGSON1B
1320 select CPU_LOONGSON1
1321 help
1322 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1323 release 2 instruction set.
1324
1325 config CPU_MIPS32_R1
1326 bool "MIPS32 Release 1"
1327 depends on SYS_HAS_CPU_MIPS32_R1
1328 select CPU_HAS_PREFETCH
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_HIGHMEM
1331 help
1332 Choose this option to build a kernel for release 1 or later of the
1333 MIPS32 architecture. Most modern embedded systems with a 32-bit
1334 MIPS processor are based on a MIPS32 processor. If you know the
1335 specific type of processor in your system, choose those that one
1336 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1337 Release 2 of the MIPS32 architecture is available since several
1338 years so chances are you even have a MIPS32 Release 2 processor
1339 in which case you should choose CPU_MIPS32_R2 instead for better
1340 performance.
1341
1342 config CPU_MIPS32_R2
1343 bool "MIPS32 Release 2"
1344 depends on SYS_HAS_CPU_MIPS32_R2
1345 select CPU_HAS_PREFETCH
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_HIGHMEM
1348 select CPU_SUPPORTS_MSA
1349 select HAVE_KVM
1350 help
1351 Choose this option to build a kernel for release 2 or later of the
1352 MIPS32 architecture. Most modern embedded systems with a 32-bit
1353 MIPS processor are based on a MIPS32 processor. If you know the
1354 specific type of processor in your system, choose those that one
1355 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1356
1357 config CPU_MIPS32_R6
1358 bool "MIPS32 Release 6 (EXPERIMENTAL)"
1359 depends on SYS_HAS_CPU_MIPS32_R6
1360 select CPU_HAS_PREFETCH
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_HIGHMEM
1363 select CPU_SUPPORTS_MSA
1364 select GENERIC_CSUM
1365 select HAVE_KVM
1366 select MIPS_O32_FP64_SUPPORT
1367 help
1368 Choose this option to build a kernel for release 6 or later of the
1369 MIPS32 architecture. New MIPS processors, starting with the Warrior
1370 family, are based on a MIPS32r6 processor. If you own an older
1371 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1372
1373 config CPU_MIPS64_R1
1374 bool "MIPS64 Release 1"
1375 depends on SYS_HAS_CPU_MIPS64_R1
1376 select CPU_HAS_PREFETCH
1377 select CPU_SUPPORTS_32BIT_KERNEL
1378 select CPU_SUPPORTS_64BIT_KERNEL
1379 select CPU_SUPPORTS_HIGHMEM
1380 select CPU_SUPPORTS_HUGEPAGES
1381 help
1382 Choose this option to build a kernel for release 1 or later of the
1383 MIPS64 architecture. Many modern embedded systems with a 64-bit
1384 MIPS processor are based on a MIPS64 processor. If you know the
1385 specific type of processor in your system, choose those that one
1386 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1387 Release 2 of the MIPS64 architecture is available since several
1388 years so chances are you even have a MIPS64 Release 2 processor
1389 in which case you should choose CPU_MIPS64_R2 instead for better
1390 performance.
1391
1392 config CPU_MIPS64_R2
1393 bool "MIPS64 Release 2"
1394 depends on SYS_HAS_CPU_MIPS64_R2
1395 select CPU_HAS_PREFETCH
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_64BIT_KERNEL
1398 select CPU_SUPPORTS_HIGHMEM
1399 select CPU_SUPPORTS_HUGEPAGES
1400 select CPU_SUPPORTS_MSA
1401 help
1402 Choose this option to build a kernel for release 2 or later of the
1403 MIPS64 architecture. Many modern embedded systems with a 64-bit
1404 MIPS processor are based on a MIPS64 processor. If you know the
1405 specific type of processor in your system, choose those that one
1406 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1407
1408 config CPU_MIPS64_R6
1409 bool "MIPS64 Release 6 (EXPERIMENTAL)"
1410 depends on SYS_HAS_CPU_MIPS64_R6
1411 select CPU_HAS_PREFETCH
1412 select CPU_SUPPORTS_32BIT_KERNEL
1413 select CPU_SUPPORTS_64BIT_KERNEL
1414 select CPU_SUPPORTS_HIGHMEM
1415 select CPU_SUPPORTS_MSA
1416 select GENERIC_CSUM
1417 help
1418 Choose this option to build a kernel for release 6 or later of the
1419 MIPS64 architecture. New MIPS processors, starting with the Warrior
1420 family, are based on a MIPS64r6 processor. If you own an older
1421 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1422
1423 config CPU_R3000
1424 bool "R3000"
1425 depends on SYS_HAS_CPU_R3000
1426 select CPU_HAS_WB
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 help
1430 Please make sure to pick the right CPU type. Linux/MIPS is not
1431 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1432 *not* work on R4000 machines and vice versa. However, since most
1433 of the supported machines have an R4000 (or similar) CPU, R4x00
1434 might be a safe bet. If the resulting kernel does not work,
1435 try to recompile with R3000.
1436
1437 config CPU_TX39XX
1438 bool "R39XX"
1439 depends on SYS_HAS_CPU_TX39XX
1440 select CPU_SUPPORTS_32BIT_KERNEL
1441
1442 config CPU_VR41XX
1443 bool "R41xx"
1444 depends on SYS_HAS_CPU_VR41XX
1445 select CPU_SUPPORTS_32BIT_KERNEL
1446 select CPU_SUPPORTS_64BIT_KERNEL
1447 help
1448 The options selects support for the NEC VR4100 series of processors.
1449 Only choose this option if you have one of these processors as a
1450 kernel built with this option will not run on any other type of
1451 processor or vice versa.
1452
1453 config CPU_R4300
1454 bool "R4300"
1455 depends on SYS_HAS_CPU_R4300
1456 select CPU_SUPPORTS_32BIT_KERNEL
1457 select CPU_SUPPORTS_64BIT_KERNEL
1458 help
1459 MIPS Technologies R4300-series processors.
1460
1461 config CPU_R4X00
1462 bool "R4x00"
1463 depends on SYS_HAS_CPU_R4X00
1464 select CPU_SUPPORTS_32BIT_KERNEL
1465 select CPU_SUPPORTS_64BIT_KERNEL
1466 select CPU_SUPPORTS_HUGEPAGES
1467 help
1468 MIPS Technologies R4000-series processors other than 4300, including
1469 the R4000, R4400, R4600, and 4700.
1470
1471 config CPU_TX49XX
1472 bool "R49XX"
1473 depends on SYS_HAS_CPU_TX49XX
1474 select CPU_HAS_PREFETCH
1475 select CPU_SUPPORTS_32BIT_KERNEL
1476 select CPU_SUPPORTS_64BIT_KERNEL
1477 select CPU_SUPPORTS_HUGEPAGES
1478
1479 config CPU_R5000
1480 bool "R5000"
1481 depends on SYS_HAS_CPU_R5000
1482 select CPU_SUPPORTS_32BIT_KERNEL
1483 select CPU_SUPPORTS_64BIT_KERNEL
1484 select CPU_SUPPORTS_HUGEPAGES
1485 help
1486 MIPS Technologies R5000-series processors other than the Nevada.
1487
1488 config CPU_R5432
1489 bool "R5432"
1490 depends on SYS_HAS_CPU_R5432
1491 select CPU_SUPPORTS_32BIT_KERNEL
1492 select CPU_SUPPORTS_64BIT_KERNEL
1493 select CPU_SUPPORTS_HUGEPAGES
1494
1495 config CPU_R5500
1496 bool "R5500"
1497 depends on SYS_HAS_CPU_R5500
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499 select CPU_SUPPORTS_64BIT_KERNEL
1500 select CPU_SUPPORTS_HUGEPAGES
1501 help
1502 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1503 instruction set.
1504
1505 config CPU_R6000
1506 bool "R6000"
1507 depends on SYS_HAS_CPU_R6000
1508 select CPU_SUPPORTS_32BIT_KERNEL
1509 help
1510 MIPS Technologies R6000 and R6000A series processors. Note these
1511 processors are extremely rare and the support for them is incomplete.
1512
1513 config CPU_NEVADA
1514 bool "RM52xx"
1515 depends on SYS_HAS_CPU_NEVADA
1516 select CPU_SUPPORTS_32BIT_KERNEL
1517 select CPU_SUPPORTS_64BIT_KERNEL
1518 select CPU_SUPPORTS_HUGEPAGES
1519 help
1520 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1521
1522 config CPU_R8000
1523 bool "R8000"
1524 depends on SYS_HAS_CPU_R8000
1525 select CPU_HAS_PREFETCH
1526 select CPU_SUPPORTS_64BIT_KERNEL
1527 help
1528 MIPS Technologies R8000 processors. Note these processors are
1529 uncommon and the support for them is incomplete.
1530
1531 config CPU_R10000
1532 bool "R10000"
1533 depends on SYS_HAS_CPU_R10000
1534 select CPU_HAS_PREFETCH
1535 select CPU_SUPPORTS_32BIT_KERNEL
1536 select CPU_SUPPORTS_64BIT_KERNEL
1537 select CPU_SUPPORTS_HIGHMEM
1538 select CPU_SUPPORTS_HUGEPAGES
1539 help
1540 MIPS Technologies R10000-series processors.
1541
1542 config CPU_RM7000
1543 bool "RM7000"
1544 depends on SYS_HAS_CPU_RM7000
1545 select CPU_HAS_PREFETCH
1546 select CPU_SUPPORTS_32BIT_KERNEL
1547 select CPU_SUPPORTS_64BIT_KERNEL
1548 select CPU_SUPPORTS_HIGHMEM
1549 select CPU_SUPPORTS_HUGEPAGES
1550
1551 config CPU_SB1
1552 bool "SB1"
1553 depends on SYS_HAS_CPU_SB1
1554 select CPU_SUPPORTS_32BIT_KERNEL
1555 select CPU_SUPPORTS_64BIT_KERNEL
1556 select CPU_SUPPORTS_HIGHMEM
1557 select CPU_SUPPORTS_HUGEPAGES
1558 select WEAK_ORDERING
1559
1560 config CPU_CAVIUM_OCTEON
1561 bool "Cavium Octeon processor"
1562 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1563 select CPU_HAS_PREFETCH
1564 select CPU_SUPPORTS_64BIT_KERNEL
1565 select WEAK_ORDERING
1566 select CPU_SUPPORTS_HIGHMEM
1567 select CPU_SUPPORTS_HUGEPAGES
1568 select USB_EHCI_BIG_ENDIAN_MMIO
1569 select MIPS_L1_CACHE_SHIFT_7
1570 help
1571 The Cavium Octeon processor is a highly integrated chip containing
1572 many ethernet hardware widgets for networking tasks. The processor
1573 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1574 Full details can be found at http://www.caviumnetworks.com.
1575
1576 config CPU_BMIPS
1577 bool "Broadcom BMIPS"
1578 depends on SYS_HAS_CPU_BMIPS
1579 select CPU_MIPS32
1580 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1581 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1582 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1583 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1584 select CPU_SUPPORTS_32BIT_KERNEL
1585 select DMA_NONCOHERENT
1586 select IRQ_CPU
1587 select SWAP_IO_SPACE
1588 select WEAK_ORDERING
1589 select CPU_SUPPORTS_HIGHMEM
1590 select CPU_HAS_PREFETCH
1591 help
1592 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1593
1594 config CPU_XLR
1595 bool "Netlogic XLR SoC"
1596 depends on SYS_HAS_CPU_XLR
1597 select CPU_SUPPORTS_32BIT_KERNEL
1598 select CPU_SUPPORTS_64BIT_KERNEL
1599 select CPU_SUPPORTS_HIGHMEM
1600 select CPU_SUPPORTS_HUGEPAGES
1601 select WEAK_ORDERING
1602 select WEAK_REORDERING_BEYOND_LLSC
1603 help
1604 Netlogic Microsystems XLR/XLS processors.
1605
1606 config CPU_XLP
1607 bool "Netlogic XLP SoC"
1608 depends on SYS_HAS_CPU_XLP
1609 select CPU_SUPPORTS_32BIT_KERNEL
1610 select CPU_SUPPORTS_64BIT_KERNEL
1611 select CPU_SUPPORTS_HIGHMEM
1612 select WEAK_ORDERING
1613 select WEAK_REORDERING_BEYOND_LLSC
1614 select CPU_HAS_PREFETCH
1615 select CPU_MIPSR2
1616 select CPU_SUPPORTS_HUGEPAGES
1617 help
1618 Netlogic Microsystems XLP processors.
1619 endchoice
1620
1621 config CPU_MIPS32_3_5_FEATURES
1622 bool "MIPS32 Release 3.5 Features"
1623 depends on SYS_HAS_CPU_MIPS32_R3_5
1624 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1625 help
1626 Choose this option to build a kernel for release 2 or later of the
1627 MIPS32 architecture including features from the 3.5 release such as
1628 support for Enhanced Virtual Addressing (EVA).
1629
1630 config CPU_MIPS32_3_5_EVA
1631 bool "Enhanced Virtual Addressing (EVA)"
1632 depends on CPU_MIPS32_3_5_FEATURES
1633 select EVA
1634 default y
1635 help
1636 Choose this option if you want to enable the Enhanced Virtual
1637 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1638 One of its primary benefits is an increase in the maximum size
1639 of lowmem (up to 3GB). If unsure, say 'N' here.
1640
1641 if CPU_LOONGSON2F
1642 config CPU_NOP_WORKAROUNDS
1643 bool
1644
1645 config CPU_JUMP_WORKAROUNDS
1646 bool
1647
1648 config CPU_LOONGSON2F_WORKAROUNDS
1649 bool "Loongson 2F Workarounds"
1650 default y
1651 select CPU_NOP_WORKAROUNDS
1652 select CPU_JUMP_WORKAROUNDS
1653 help
1654 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1655 require workarounds. Without workarounds the system may hang
1656 unexpectedly. For more information please refer to the gas
1657 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1658
1659 Loongson 2F03 and later have fixed these issues and no workarounds
1660 are needed. The workarounds have no significant side effect on them
1661 but may decrease the performance of the system so this option should
1662 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1663 systems.
1664
1665 If unsure, please say Y.
1666 endif # CPU_LOONGSON2F
1667
1668 config SYS_SUPPORTS_ZBOOT
1669 bool
1670 select HAVE_KERNEL_GZIP
1671 select HAVE_KERNEL_BZIP2
1672 select HAVE_KERNEL_LZ4
1673 select HAVE_KERNEL_LZMA
1674 select HAVE_KERNEL_LZO
1675 select HAVE_KERNEL_XZ
1676
1677 config SYS_SUPPORTS_ZBOOT_UART16550
1678 bool
1679 select SYS_SUPPORTS_ZBOOT
1680
1681 config CPU_LOONGSON2
1682 bool
1683 select CPU_SUPPORTS_32BIT_KERNEL
1684 select CPU_SUPPORTS_64BIT_KERNEL
1685 select CPU_SUPPORTS_HIGHMEM
1686 select CPU_SUPPORTS_HUGEPAGES
1687
1688 config CPU_LOONGSON1
1689 bool
1690 select CPU_MIPS32
1691 select CPU_MIPSR2
1692 select CPU_HAS_PREFETCH
1693 select CPU_SUPPORTS_32BIT_KERNEL
1694 select CPU_SUPPORTS_HIGHMEM
1695 select CPU_SUPPORTS_CPUFREQ
1696
1697 config CPU_BMIPS32_3300
1698 select SMP_UP if SMP
1699 bool
1700
1701 config CPU_BMIPS4350
1702 bool
1703 select SYS_SUPPORTS_SMP
1704 select SYS_SUPPORTS_HOTPLUG_CPU
1705
1706 config CPU_BMIPS4380
1707 bool
1708 select MIPS_L1_CACHE_SHIFT_6
1709 select SYS_SUPPORTS_SMP
1710 select SYS_SUPPORTS_HOTPLUG_CPU
1711
1712 config CPU_BMIPS5000
1713 bool
1714 select MIPS_CPU_SCACHE
1715 select MIPS_L1_CACHE_SHIFT_7
1716 select SYS_SUPPORTS_SMP
1717 select SYS_SUPPORTS_HOTPLUG_CPU
1718
1719 config SYS_HAS_CPU_LOONGSON3
1720 bool
1721 select CPU_SUPPORTS_CPUFREQ
1722
1723 config SYS_HAS_CPU_LOONGSON2E
1724 bool
1725
1726 config SYS_HAS_CPU_LOONGSON2F
1727 bool
1728 select CPU_SUPPORTS_CPUFREQ
1729 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1730 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1731
1732 config SYS_HAS_CPU_LOONGSON1B
1733 bool
1734
1735 config SYS_HAS_CPU_MIPS32_R1
1736 bool
1737
1738 config SYS_HAS_CPU_MIPS32_R2
1739 bool
1740
1741 config SYS_HAS_CPU_MIPS32_R3_5
1742 bool
1743
1744 config SYS_HAS_CPU_MIPS32_R6
1745 bool
1746
1747 config SYS_HAS_CPU_MIPS64_R1
1748 bool
1749
1750 config SYS_HAS_CPU_MIPS64_R2
1751 bool
1752
1753 config SYS_HAS_CPU_MIPS64_R6
1754 bool
1755
1756 config SYS_HAS_CPU_R3000
1757 bool
1758
1759 config SYS_HAS_CPU_TX39XX
1760 bool
1761
1762 config SYS_HAS_CPU_VR41XX
1763 bool
1764
1765 config SYS_HAS_CPU_R4300
1766 bool
1767
1768 config SYS_HAS_CPU_R4X00
1769 bool
1770
1771 config SYS_HAS_CPU_TX49XX
1772 bool
1773
1774 config SYS_HAS_CPU_R5000
1775 bool
1776
1777 config SYS_HAS_CPU_R5432
1778 bool
1779
1780 config SYS_HAS_CPU_R5500
1781 bool
1782
1783 config SYS_HAS_CPU_R6000
1784 bool
1785
1786 config SYS_HAS_CPU_NEVADA
1787 bool
1788
1789 config SYS_HAS_CPU_R8000
1790 bool
1791
1792 config SYS_HAS_CPU_R10000
1793 bool
1794
1795 config SYS_HAS_CPU_RM7000
1796 bool
1797
1798 config SYS_HAS_CPU_SB1
1799 bool
1800
1801 config SYS_HAS_CPU_CAVIUM_OCTEON
1802 bool
1803
1804 config SYS_HAS_CPU_BMIPS
1805 bool
1806
1807 config SYS_HAS_CPU_BMIPS32_3300
1808 bool
1809 select SYS_HAS_CPU_BMIPS
1810
1811 config SYS_HAS_CPU_BMIPS4350
1812 bool
1813 select SYS_HAS_CPU_BMIPS
1814
1815 config SYS_HAS_CPU_BMIPS4380
1816 bool
1817 select SYS_HAS_CPU_BMIPS
1818
1819 config SYS_HAS_CPU_BMIPS5000
1820 bool
1821 select SYS_HAS_CPU_BMIPS
1822
1823 config SYS_HAS_CPU_XLR
1824 bool
1825
1826 config SYS_HAS_CPU_XLP
1827 bool
1828
1829 config MIPS_MALTA_PM
1830 depends on MIPS_MALTA
1831 depends on PCI
1832 bool
1833 default y
1834
1835 #
1836 # CPU may reorder R->R, R->W, W->R, W->W
1837 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1838 #
1839 config WEAK_ORDERING
1840 bool
1841
1842 #
1843 # CPU may reorder reads and writes beyond LL/SC
1844 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1845 #
1846 config WEAK_REORDERING_BEYOND_LLSC
1847 bool
1848 endmenu
1849
1850 #
1851 # These two indicate any level of the MIPS32 and MIPS64 architecture
1852 #
1853 config CPU_MIPS32
1854 bool
1855 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1856
1857 config CPU_MIPS64
1858 bool
1859 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1860
1861 #
1862 # These two indicate the revision of the architecture, either Release 1 or Release 2
1863 #
1864 config CPU_MIPSR1
1865 bool
1866 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1867
1868 config CPU_MIPSR2
1869 bool
1870 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1871 select MIPS_SPRAM
1872
1873 config CPU_MIPSR6
1874 bool
1875 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1876 select MIPS_SPRAM
1877
1878 config EVA
1879 bool
1880
1881 config SYS_SUPPORTS_32BIT_KERNEL
1882 bool
1883 config SYS_SUPPORTS_64BIT_KERNEL
1884 bool
1885 config CPU_SUPPORTS_32BIT_KERNEL
1886 bool
1887 config CPU_SUPPORTS_64BIT_KERNEL
1888 bool
1889 config CPU_SUPPORTS_CPUFREQ
1890 bool
1891 config CPU_SUPPORTS_ADDRWINCFG
1892 bool
1893 config CPU_SUPPORTS_HUGEPAGES
1894 bool
1895 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1896 bool
1897 config MIPS_PGD_C0_CONTEXT
1898 bool
1899 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1900
1901 #
1902 # Set to y for ptrace access to watch registers.
1903 #
1904 config HARDWARE_WATCHPOINTS
1905 bool
1906 default y if CPU_MIPSR1 || CPU_MIPSR2
1907
1908 menu "Kernel type"
1909
1910 choice
1911 prompt "Kernel code model"
1912 help
1913 You should only select this option if you have a workload that
1914 actually benefits from 64-bit processing or if your machine has
1915 large memory. You will only be presented a single option in this
1916 menu if your system does not support both 32-bit and 64-bit kernels.
1917
1918 config 32BIT
1919 bool "32-bit kernel"
1920 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1921 select TRAD_SIGNALS
1922 help
1923 Select this option if you want to build a 32-bit kernel.
1924 config 64BIT
1925 bool "64-bit kernel"
1926 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1927 help
1928 Select this option if you want to build a 64-bit kernel.
1929
1930 endchoice
1931
1932 config KVM_GUEST
1933 bool "KVM Guest Kernel"
1934 depends on BROKEN_ON_SMP
1935 help
1936 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1937
1938 config KVM_GUEST_TIMER_FREQ
1939 int "Count/Compare Timer Frequency (MHz)"
1940 depends on KVM_GUEST
1941 default 100
1942 help
1943 Set this to non-zero if building a guest kernel for KVM to skip RTC
1944 emulation when determining guest CPU Frequency. Instead, the guest's
1945 timer frequency is specified directly.
1946
1947 choice
1948 prompt "Kernel page size"
1949 default PAGE_SIZE_4KB
1950
1951 config PAGE_SIZE_4KB
1952 bool "4kB"
1953 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1954 help
1955 This option select the standard 4kB Linux page size. On some
1956 R3000-family processors this is the only available page size. Using
1957 4kB page size will minimize memory consumption and is therefore
1958 recommended for low memory systems.
1959
1960 config PAGE_SIZE_8KB
1961 bool "8kB"
1962 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1963 help
1964 Using 8kB page size will result in higher performance kernel at
1965 the price of higher memory consumption. This option is available
1966 only on R8000 and cnMIPS processors. Note that you will need a
1967 suitable Linux distribution to support this.
1968
1969 config PAGE_SIZE_16KB
1970 bool "16kB"
1971 depends on !CPU_R3000 && !CPU_TX39XX
1972 help
1973 Using 16kB page size will result in higher performance kernel at
1974 the price of higher memory consumption. This option is available on
1975 all non-R3000 family processors. Note that you will need a suitable
1976 Linux distribution to support this.
1977
1978 config PAGE_SIZE_32KB
1979 bool "32kB"
1980 depends on CPU_CAVIUM_OCTEON
1981 help
1982 Using 32kB page size will result in higher performance kernel at
1983 the price of higher memory consumption. This option is available
1984 only on cnMIPS cores. Note that you will need a suitable Linux
1985 distribution to support this.
1986
1987 config PAGE_SIZE_64KB
1988 bool "64kB"
1989 depends on !CPU_R3000 && !CPU_TX39XX
1990 help
1991 Using 64kB page size will result in higher performance kernel at
1992 the price of higher memory consumption. This option is available on
1993 all non-R3000 family processor. Not that at the time of this
1994 writing this option is still high experimental.
1995
1996 endchoice
1997
1998 config FORCE_MAX_ZONEORDER
1999 int "Maximum zone order"
2000 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2001 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2002 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2003 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2004 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2005 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2006 range 11 64
2007 default "11"
2008 help
2009 The kernel memory allocator divides physically contiguous memory
2010 blocks into "zones", where each zone is a power of two number of
2011 pages. This option selects the largest power of two that the kernel
2012 keeps in the memory allocator. If you need to allocate very large
2013 blocks of physically contiguous memory, then you may need to
2014 increase this value.
2015
2016 This config option is actually maximum order plus one. For example,
2017 a value of 11 means that the largest free memory block is 2^10 pages.
2018
2019 The page size is not necessarily 4KB. Keep this in mind
2020 when choosing a value for this option.
2021
2022 config BOARD_SCACHE
2023 bool
2024
2025 config IP22_CPU_SCACHE
2026 bool
2027 select BOARD_SCACHE
2028
2029 #
2030 # Support for a MIPS32 / MIPS64 style S-caches
2031 #
2032 config MIPS_CPU_SCACHE
2033 bool
2034 select BOARD_SCACHE
2035
2036 config R5000_CPU_SCACHE
2037 bool
2038 select BOARD_SCACHE
2039
2040 config RM7000_CPU_SCACHE
2041 bool
2042 select BOARD_SCACHE
2043
2044 config SIBYTE_DMA_PAGEOPS
2045 bool "Use DMA to clear/copy pages"
2046 depends on CPU_SB1
2047 help
2048 Instead of using the CPU to zero and copy pages, use a Data Mover
2049 channel. These DMA channels are otherwise unused by the standard
2050 SiByte Linux port. Seems to give a small performance benefit.
2051
2052 config CPU_HAS_PREFETCH
2053 bool
2054
2055 config CPU_GENERIC_DUMP_TLB
2056 bool
2057 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2058
2059 config CPU_R4K_FPU
2060 bool
2061 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2062
2063 config CPU_R4K_CACHE_TLB
2064 bool
2065 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2066
2067 config MIPS_MT_SMP
2068 bool "MIPS MT SMP support (1 TC on each available VPE)"
2069 depends on SYS_SUPPORTS_MULTITHREADING
2070 select CPU_MIPSR2_IRQ_VI
2071 select CPU_MIPSR2_IRQ_EI
2072 select SYNC_R4K
2073 select MIPS_GIC_IPI
2074 select MIPS_MT
2075 select SMP
2076 select SMP_UP
2077 select SYS_SUPPORTS_SMP
2078 select SYS_SUPPORTS_SCHED_SMT
2079 select MIPS_PERF_SHARED_TC_COUNTERS
2080 help
2081 This is a kernel model which is known as SMVP. This is supported
2082 on cores with the MT ASE and uses the available VPEs to implement
2083 virtual processors which supports SMP. This is equivalent to the
2084 Intel Hyperthreading feature. For further information go to
2085 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2086
2087 config MIPS_MT
2088 bool
2089
2090 config SCHED_SMT
2091 bool "SMT (multithreading) scheduler support"
2092 depends on SYS_SUPPORTS_SCHED_SMT
2093 default n
2094 help
2095 SMT scheduler support improves the CPU scheduler's decision making
2096 when dealing with MIPS MT enabled cores at a cost of slightly
2097 increased overhead in some places. If unsure say N here.
2098
2099 config SYS_SUPPORTS_SCHED_SMT
2100 bool
2101
2102 config SYS_SUPPORTS_MULTITHREADING
2103 bool
2104
2105 config MIPS_MT_FPAFF
2106 bool "Dynamic FPU affinity for FP-intensive threads"
2107 default y
2108 depends on MIPS_MT_SMP
2109
2110 config MIPSR2_TO_R6_EMULATOR
2111 bool "MIPS R2-to-R6 emulator"
2112 depends on CPU_MIPSR6 && !SMP
2113 default y
2114 help
2115 Choose this option if you want to run non-R6 MIPS userland code.
2116 Even if you say 'Y' here, the emulator will still be disabled by
2117 default. You can enable it using the 'mipsr2emul' kernel option.
2118 The only reason this is a build-time option is to save ~14K from the
2119 final kernel image.
2120 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2121 depends on SMP && CPU_MIPSR6
2122
2123 config MIPS_VPE_LOADER
2124 bool "VPE loader support."
2125 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2126 select CPU_MIPSR2_IRQ_VI
2127 select CPU_MIPSR2_IRQ_EI
2128 select MIPS_MT
2129 help
2130 Includes a loader for loading an elf relocatable object
2131 onto another VPE and running it.
2132
2133 config MIPS_VPE_LOADER_CMP
2134 bool
2135 default "y"
2136 depends on MIPS_VPE_LOADER && MIPS_CMP
2137
2138 config MIPS_VPE_LOADER_MT
2139 bool
2140 default "y"
2141 depends on MIPS_VPE_LOADER && !MIPS_CMP
2142
2143 config MIPS_VPE_LOADER_TOM
2144 bool "Load VPE program into memory hidden from linux"
2145 depends on MIPS_VPE_LOADER
2146 default y
2147 help
2148 The loader can use memory that is present but has been hidden from
2149 Linux using the kernel command line option "mem=xxMB". It's up to
2150 you to ensure the amount you put in the option and the space your
2151 program requires is less or equal to the amount physically present.
2152
2153 config MIPS_VPE_APSP_API
2154 bool "Enable support for AP/SP API (RTLX)"
2155 depends on MIPS_VPE_LOADER
2156 help
2157
2158 config MIPS_VPE_APSP_API_CMP
2159 bool
2160 default "y"
2161 depends on MIPS_VPE_APSP_API && MIPS_CMP
2162
2163 config MIPS_VPE_APSP_API_MT
2164 bool
2165 default "y"
2166 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2167
2168 config MIPS_CMP
2169 bool "MIPS CMP framework support (DEPRECATED)"
2170 depends on SYS_SUPPORTS_MIPS_CMP
2171 select MIPS_GIC_IPI
2172 select SMP
2173 select SYNC_R4K
2174 select SYS_SUPPORTS_SMP
2175 select WEAK_ORDERING
2176 default n
2177 help
2178 Select this if you are using a bootloader which implements the "CMP
2179 framework" protocol (ie. YAMON) and want your kernel to make use of
2180 its ability to start secondary CPUs.
2181
2182 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2183 instead of this.
2184
2185 config MIPS_CPS
2186 bool "MIPS Coherent Processing System support"
2187 depends on SYS_SUPPORTS_MIPS_CPS
2188 select MIPS_CM
2189 select MIPS_CPC
2190 select MIPS_CPS_PM if HOTPLUG_CPU
2191 select MIPS_GIC_IPI
2192 select SMP
2193 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2194 select SYS_SUPPORTS_HOTPLUG_CPU
2195 select SYS_SUPPORTS_SMP
2196 select WEAK_ORDERING
2197 help
2198 Select this if you wish to run an SMP kernel across multiple cores
2199 within a MIPS Coherent Processing System. When this option is
2200 enabled the kernel will probe for other cores and boot them with
2201 no external assistance. It is safe to enable this when hardware
2202 support is unavailable.
2203
2204 config MIPS_CPS_PM
2205 depends on MIPS_CPS
2206 select MIPS_CPC
2207 bool
2208
2209 config MIPS_GIC_IPI
2210 bool
2211
2212 config MIPS_CM
2213 bool
2214
2215 config MIPS_CPC
2216 bool
2217
2218 config SB1_PASS_1_WORKAROUNDS
2219 bool
2220 depends on CPU_SB1_PASS_1
2221 default y
2222
2223 config SB1_PASS_2_WORKAROUNDS
2224 bool
2225 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2226 default y
2227
2228 config SB1_PASS_2_1_WORKAROUNDS
2229 bool
2230 depends on CPU_SB1 && CPU_SB1_PASS_2
2231 default y
2232
2233
2234 config ARCH_PHYS_ADDR_T_64BIT
2235 bool
2236
2237 choice
2238 prompt "SmartMIPS or microMIPS ASE support"
2239
2240 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2241 bool "None"
2242 help
2243 Select this if you want neither microMIPS nor SmartMIPS support
2244
2245 config CPU_HAS_SMARTMIPS
2246 depends on SYS_SUPPORTS_SMARTMIPS
2247 bool "SmartMIPS"
2248 help
2249 SmartMIPS is a extension of the MIPS32 architecture aimed at
2250 increased security at both hardware and software level for
2251 smartcards. Enabling this option will allow proper use of the
2252 SmartMIPS instructions by Linux applications. However a kernel with
2253 this option will not work on a MIPS core without SmartMIPS core. If
2254 you don't know you probably don't have SmartMIPS and should say N
2255 here.
2256
2257 config CPU_MICROMIPS
2258 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2259 bool "microMIPS"
2260 help
2261 When this option is enabled the kernel will be built using the
2262 microMIPS ISA
2263
2264 endchoice
2265
2266 config CPU_HAS_MSA
2267 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
2268 depends on CPU_SUPPORTS_MSA
2269 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2270 help
2271 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2272 and a set of SIMD instructions to operate on them. When this option
2273 is enabled the kernel will support allocating & switching MSA
2274 vector register contexts. If you know that your kernel will only be
2275 running on CPUs which do not support MSA or that your userland will
2276 not be making use of it then you may wish to say N here to reduce
2277 the size & complexity of your kernel.
2278
2279 If unsure, say Y.
2280
2281 config CPU_HAS_WB
2282 bool
2283
2284 config XKS01
2285 bool
2286
2287 #
2288 # Vectored interrupt mode is an R2 feature
2289 #
2290 config CPU_MIPSR2_IRQ_VI
2291 bool
2292
2293 #
2294 # Extended interrupt mode is an R2 feature
2295 #
2296 config CPU_MIPSR2_IRQ_EI
2297 bool
2298
2299 config CPU_HAS_SYNC
2300 bool
2301 depends on !CPU_R3000
2302 default y
2303
2304 #
2305 # CPU non-features
2306 #
2307 config CPU_DADDI_WORKAROUNDS
2308 bool
2309
2310 config CPU_R4000_WORKAROUNDS
2311 bool
2312 select CPU_R4400_WORKAROUNDS
2313
2314 config CPU_R4400_WORKAROUNDS
2315 bool
2316
2317 #
2318 # - Highmem only makes sense for the 32-bit kernel.
2319 # - The current highmem code will only work properly on physically indexed
2320 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2321 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2322 # moment we protect the user and offer the highmem option only on machines
2323 # where it's known to be safe. This will not offer highmem on a few systems
2324 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2325 # indexed CPUs but we're playing safe.
2326 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2327 # know they might have memory configurations that could make use of highmem
2328 # support.
2329 #
2330 config HIGHMEM
2331 bool "High Memory Support"
2332 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2333
2334 config CPU_SUPPORTS_HIGHMEM
2335 bool
2336
2337 config SYS_SUPPORTS_HIGHMEM
2338 bool
2339
2340 config SYS_SUPPORTS_SMARTMIPS
2341 bool
2342
2343 config SYS_SUPPORTS_MICROMIPS
2344 bool
2345
2346 config SYS_SUPPORTS_MIPS16
2347 bool
2348 help
2349 This option must be set if a kernel might be executed on a MIPS16-
2350 enabled CPU even if MIPS16 is not actually being used. In other
2351 words, it makes the kernel MIPS16-tolerant.
2352
2353 config CPU_SUPPORTS_MSA
2354 bool
2355
2356 config ARCH_FLATMEM_ENABLE
2357 def_bool y
2358 depends on !NUMA && !CPU_LOONGSON2
2359
2360 config ARCH_DISCONTIGMEM_ENABLE
2361 bool
2362 default y if SGI_IP27
2363 help
2364 Say Y to support efficient handling of discontiguous physical memory,
2365 for architectures which are either NUMA (Non-Uniform Memory Access)
2366 or have huge holes in the physical address space for other reasons.
2367 See <file:Documentation/vm/numa> for more.
2368
2369 config ARCH_SPARSEMEM_ENABLE
2370 bool
2371 select SPARSEMEM_STATIC
2372
2373 config NUMA
2374 bool "NUMA Support"
2375 depends on SYS_SUPPORTS_NUMA
2376 help
2377 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2378 Access). This option improves performance on systems with more
2379 than two nodes; on two node systems it is generally better to
2380 leave it disabled; on single node systems disable this option
2381 disabled.
2382
2383 config SYS_SUPPORTS_NUMA
2384 bool
2385
2386 config NODES_SHIFT
2387 int
2388 default "6"
2389 depends on NEED_MULTIPLE_NODES
2390
2391 config HW_PERF_EVENTS
2392 bool "Enable hardware performance counter support for perf events"
2393 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2394 default y
2395 help
2396 Enable hardware performance counter support for perf events. If
2397 disabled, perf events will use software events only.
2398
2399 source "mm/Kconfig"
2400
2401 config SMP
2402 bool "Multi-Processing support"
2403 depends on SYS_SUPPORTS_SMP
2404 help
2405 This enables support for systems with more than one CPU. If you have
2406 a system with only one CPU, say N. If you have a system with more
2407 than one CPU, say Y.
2408
2409 If you say N here, the kernel will run on uni- and multiprocessor
2410 machines, but will use only one CPU of a multiprocessor machine. If
2411 you say Y here, the kernel will run on many, but not all,
2412 uniprocessor machines. On a uniprocessor machine, the kernel
2413 will run faster if you say N here.
2414
2415 People using multiprocessor machines who say Y here should also say
2416 Y to "Enhanced Real Time Clock Support", below.
2417
2418 See also the SMP-HOWTO available at
2419 <http://www.tldp.org/docs.html#howto>.
2420
2421 If you don't know what to do here, say N.
2422
2423 config SMP_UP
2424 bool
2425
2426 config SYS_SUPPORTS_MIPS_CMP
2427 bool
2428
2429 config SYS_SUPPORTS_MIPS_CPS
2430 bool
2431
2432 config SYS_SUPPORTS_SMP
2433 bool
2434
2435 config NR_CPUS_DEFAULT_4
2436 bool
2437
2438 config NR_CPUS_DEFAULT_8
2439 bool
2440
2441 config NR_CPUS_DEFAULT_16
2442 bool
2443
2444 config NR_CPUS_DEFAULT_32
2445 bool
2446
2447 config NR_CPUS_DEFAULT_64
2448 bool
2449
2450 config NR_CPUS
2451 int "Maximum number of CPUs (2-256)"
2452 range 2 256
2453 depends on SMP
2454 default "4" if NR_CPUS_DEFAULT_4
2455 default "8" if NR_CPUS_DEFAULT_8
2456 default "16" if NR_CPUS_DEFAULT_16
2457 default "32" if NR_CPUS_DEFAULT_32
2458 default "64" if NR_CPUS_DEFAULT_64
2459 help
2460 This allows you to specify the maximum number of CPUs which this
2461 kernel will support. The maximum supported value is 32 for 32-bit
2462 kernel and 64 for 64-bit kernels; the minimum value which makes
2463 sense is 1 for Qemu (useful only for kernel debugging purposes)
2464 and 2 for all others.
2465
2466 This is purely to save memory - each supported CPU adds
2467 approximately eight kilobytes to the kernel image. For best
2468 performance should round up your number of processors to the next
2469 power of two.
2470
2471 config MIPS_PERF_SHARED_TC_COUNTERS
2472 bool
2473
2474 #
2475 # Timer Interrupt Frequency Configuration
2476 #
2477
2478 choice
2479 prompt "Timer frequency"
2480 default HZ_250
2481 help
2482 Allows the configuration of the timer frequency.
2483
2484 config HZ_48
2485 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2486
2487 config HZ_100
2488 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2489
2490 config HZ_128
2491 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2492
2493 config HZ_250
2494 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2495
2496 config HZ_256
2497 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2498
2499 config HZ_1000
2500 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2501
2502 config HZ_1024
2503 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2504
2505 endchoice
2506
2507 config SYS_SUPPORTS_48HZ
2508 bool
2509
2510 config SYS_SUPPORTS_100HZ
2511 bool
2512
2513 config SYS_SUPPORTS_128HZ
2514 bool
2515
2516 config SYS_SUPPORTS_250HZ
2517 bool
2518
2519 config SYS_SUPPORTS_256HZ
2520 bool
2521
2522 config SYS_SUPPORTS_1000HZ
2523 bool
2524
2525 config SYS_SUPPORTS_1024HZ
2526 bool
2527
2528 config SYS_SUPPORTS_ARBIT_HZ
2529 bool
2530 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2531 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2532 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2533 !SYS_SUPPORTS_1024HZ
2534
2535 config HZ
2536 int
2537 default 48 if HZ_48
2538 default 100 if HZ_100
2539 default 128 if HZ_128
2540 default 250 if HZ_250
2541 default 256 if HZ_256
2542 default 1000 if HZ_1000
2543 default 1024 if HZ_1024
2544
2545 config SCHED_HRTICK
2546 def_bool HIGH_RES_TIMERS
2547
2548 source "kernel/Kconfig.preempt"
2549
2550 config KEXEC
2551 bool "Kexec system call"
2552 help
2553 kexec is a system call that implements the ability to shutdown your
2554 current kernel, and to start another kernel. It is like a reboot
2555 but it is independent of the system firmware. And like a reboot
2556 you can start any kernel with it, not just Linux.
2557
2558 The name comes from the similarity to the exec system call.
2559
2560 It is an ongoing process to be certain the hardware in a machine
2561 is properly shutdown, so do not be surprised if this code does not
2562 initially work for you. As of this writing the exact hardware
2563 interface is strongly in flux, so no good recommendation can be
2564 made.
2565
2566 config CRASH_DUMP
2567 bool "Kernel crash dumps"
2568 help
2569 Generate crash dump after being started by kexec.
2570 This should be normally only set in special crash dump kernels
2571 which are loaded in the main kernel with kexec-tools into
2572 a specially reserved region and then later executed after
2573 a crash by kdump/kexec. The crash dump kernel must be compiled
2574 to a memory address not used by the main kernel or firmware using
2575 PHYSICAL_START.
2576
2577 config PHYSICAL_START
2578 hex "Physical address where the kernel is loaded"
2579 default "0xffffffff84000000" if 64BIT
2580 default "0x84000000" if 32BIT
2581 depends on CRASH_DUMP
2582 help
2583 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2584 If you plan to use kernel for capturing the crash dump change
2585 this value to start of the reserved region (the "X" value as
2586 specified in the "crashkernel=YM@XM" command line boot parameter
2587 passed to the panic-ed kernel).
2588
2589 config SECCOMP
2590 bool "Enable seccomp to safely compute untrusted bytecode"
2591 depends on PROC_FS
2592 default y
2593 help
2594 This kernel feature is useful for number crunching applications
2595 that may need to compute untrusted bytecode during their
2596 execution. By using pipes or other transports made available to
2597 the process as file descriptors supporting the read/write
2598 syscalls, it's possible to isolate those applications in
2599 their own address space using seccomp. Once seccomp is
2600 enabled via /proc/<pid>/seccomp, it cannot be disabled
2601 and the task is only allowed to execute a few safe syscalls
2602 defined by each seccomp mode.
2603
2604 If unsure, say Y. Only embedded should say N here.
2605
2606 config MIPS_O32_FP64_SUPPORT
2607 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2608 depends on 32BIT || MIPS32_O32
2609 help
2610 When this is enabled, the kernel will support use of 64-bit floating
2611 point registers with binaries using the O32 ABI along with the
2612 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2613 32-bit MIPS systems this support is at the cost of increasing the
2614 size and complexity of the compiled FPU emulator. Thus if you are
2615 running a MIPS32 system and know that none of your userland binaries
2616 will require 64-bit floating point, you may wish to reduce the size
2617 of your kernel & potentially improve FP emulation performance by
2618 saying N here.
2619
2620 Although binutils currently supports use of this flag the details
2621 concerning its effect upon the O32 ABI in userland are still being
2622 worked on. In order to avoid userland becoming dependant upon current
2623 behaviour before the details have been finalised, this option should
2624 be considered experimental and only enabled by those working upon
2625 said details.
2626
2627 If unsure, say N.
2628
2629 config USE_OF
2630 bool
2631 select OF
2632 select OF_EARLY_FLATTREE
2633 select IRQ_DOMAIN
2634
2635 config BUILTIN_DTB
2636 bool
2637
2638 endmenu
2639
2640 config LOCKDEP_SUPPORT
2641 bool
2642 default y
2643
2644 config STACKTRACE_SUPPORT
2645 bool
2646 default y
2647
2648 source "init/Kconfig"
2649
2650 source "kernel/Kconfig.freezer"
2651
2652 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2653
2654 config HW_HAS_EISA
2655 bool
2656 config HW_HAS_PCI
2657 bool
2658
2659 config PCI
2660 bool "Support for PCI controller"
2661 depends on HW_HAS_PCI
2662 select PCI_DOMAINS
2663 select NO_GENERIC_PCI_IOPORT_MAP
2664 help
2665 Find out whether you have a PCI motherboard. PCI is the name of a
2666 bus system, i.e. the way the CPU talks to the other stuff inside
2667 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2668 say Y, otherwise N.
2669
2670 config HT_PCI
2671 bool "Support for HT-linked PCI"
2672 default y
2673 depends on CPU_LOONGSON3
2674 select PCI
2675 select PCI_DOMAINS
2676 help
2677 Loongson family machines use Hyper-Transport bus for inter-core
2678 connection and device connection. The PCI bus is a subordinate
2679 linked at HT. Choose Y for Loongson-3 based machines.
2680
2681 config PCI_DOMAINS
2682 bool
2683
2684 source "drivers/pci/Kconfig"
2685
2686 source "drivers/pci/pcie/Kconfig"
2687
2688 #
2689 # ISA support is now enabled via select. Too many systems still have the one
2690 # or other ISA chip on the board that users don't know about so don't expect
2691 # users to choose the right thing ...
2692 #
2693 config ISA
2694 bool
2695
2696 config EISA
2697 bool "EISA support"
2698 depends on HW_HAS_EISA
2699 select ISA
2700 select GENERIC_ISA_DMA
2701 ---help---
2702 The Extended Industry Standard Architecture (EISA) bus was
2703 developed as an open alternative to the IBM MicroChannel bus.
2704
2705 The EISA bus provided some of the features of the IBM MicroChannel
2706 bus while maintaining backward compatibility with cards made for
2707 the older ISA bus. The EISA bus saw limited use between 1988 and
2708 1995 when it was made obsolete by the PCI bus.
2709
2710 Say Y here if you are building a kernel for an EISA-based machine.
2711
2712 Otherwise, say N.
2713
2714 source "drivers/eisa/Kconfig"
2715
2716 config TC
2717 bool "TURBOchannel support"
2718 depends on MACH_DECSTATION
2719 help
2720 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2721 processors. TURBOchannel programming specifications are available
2722 at:
2723 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2724 and:
2725 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2726 Linux driver support status is documented at:
2727 <http://www.linux-mips.org/wiki/DECstation>
2728
2729 config MMU
2730 bool
2731 default y
2732
2733 config I8253
2734 bool
2735 select CLKSRC_I8253
2736 select CLKEVT_I8253
2737 select MIPS_EXTERNAL_TIMER
2738
2739 config ZONE_DMA
2740 bool
2741
2742 config ZONE_DMA32
2743 bool
2744
2745 source "drivers/pcmcia/Kconfig"
2746
2747 source "drivers/pci/hotplug/Kconfig"
2748
2749 config RAPIDIO
2750 tristate "RapidIO support"
2751 depends on PCI
2752 default n
2753 help
2754 If you say Y here, the kernel will include drivers and
2755 infrastructure code to support RapidIO interconnect devices.
2756
2757 source "drivers/rapidio/Kconfig"
2758
2759 endmenu
2760
2761 menu "Executable file formats"
2762
2763 source "fs/Kconfig.binfmt"
2764
2765 config TRAD_SIGNALS
2766 bool
2767
2768 config MIPS32_COMPAT
2769 bool
2770
2771 config COMPAT
2772 bool
2773
2774 config SYSVIPC_COMPAT
2775 bool
2776
2777 config MIPS32_O32
2778 bool "Kernel support for o32 binaries"
2779 depends on 64BIT
2780 select ARCH_WANT_OLD_COMPAT_IPC
2781 select COMPAT
2782 select MIPS32_COMPAT
2783 select SYSVIPC_COMPAT if SYSVIPC
2784 help
2785 Select this option if you want to run o32 binaries. These are pure
2786 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2787 existing binaries are in this format.
2788
2789 If unsure, say Y.
2790
2791 config MIPS32_N32
2792 bool "Kernel support for n32 binaries"
2793 depends on 64BIT
2794 select COMPAT
2795 select MIPS32_COMPAT
2796 select SYSVIPC_COMPAT if SYSVIPC
2797 help
2798 Select this option if you want to run n32 binaries. These are
2799 64-bit binaries using 32-bit quantities for addressing and certain
2800 data that would normally be 64-bit. They are used in special
2801 cases.
2802
2803 If unsure, say N.
2804
2805 config BINFMT_ELF32
2806 bool
2807 default y if MIPS32_O32 || MIPS32_N32
2808
2809 endmenu
2810
2811 menu "Power management options"
2812
2813 config ARCH_HIBERNATION_POSSIBLE
2814 def_bool y
2815 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2816
2817 config ARCH_SUSPEND_POSSIBLE
2818 def_bool y
2819 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2820
2821 source "kernel/power/Kconfig"
2822
2823 endmenu
2824
2825 config MIPS_EXTERNAL_TIMER
2826 bool
2827
2828 menu "CPU Power Management"
2829
2830 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2831 source "drivers/cpufreq/Kconfig"
2832 endif
2833
2834 source "drivers/cpuidle/Kconfig"
2835
2836 endmenu
2837
2838 source "net/Kconfig"
2839
2840 source "drivers/Kconfig"
2841
2842 source "drivers/firmware/Kconfig"
2843
2844 source "fs/Kconfig"
2845
2846 source "arch/mips/Kconfig.debug"
2847
2848 source "security/Kconfig"
2849
2850 source "crypto/Kconfig"
2851
2852 source "lib/Kconfig"
2853
2854 source "arch/mips/kvm/Kconfig"