vxlan: Add checksum check to the features check function
[deliverable/linux.git] / arch / mips / Kconfig
1 config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select VIRT_TO_BUS
52 select MODULES_USE_ELF_REL if MODULES
53 select MODULES_USE_ELF_RELA if MODULES && 64BIT
54 select CLONE_BACKWARDS
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_CC_STACKPROTECTOR
57 select CPU_PM if CPU_IDLE
58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
59 select ARCH_BINFMT_ELF_STATE
60 select SYSCTL_EXCEPTION_TRACE
61 select HAVE_VIRT_CPU_ACCOUNTING_GEN
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select GENERIC_TIME_VSYSCALL
64 select ARCH_CLOCKSOURCE_DATA
65
66 menu "Machine selection"
67
68 choice
69 prompt "System type"
70 default SGI_IP22
71
72 config MIPS_ALCHEMY
73 bool "Alchemy processor based machines"
74 select ARCH_PHYS_ADDR_T_64BIT
75 select CEVT_R4K
76 select CSRC_R4K
77 select IRQ_MIPS_CPU
78 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_APM_EMULATION
82 select ARCH_REQUIRE_GPIOLIB
83 select SYS_SUPPORTS_ZBOOT
84 select COMMON_CLK
85
86 config AR7
87 bool "Texas Instruments AR7"
88 select BOOT_ELF32
89 select DMA_NONCOHERENT
90 select CEVT_R4K
91 select CSRC_R4K
92 select IRQ_MIPS_CPU
93 select NO_EXCEPT_FILL
94 select SWAP_IO_SPACE
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_MIPS16
100 select SYS_SUPPORTS_ZBOOT_UART16550
101 select ARCH_REQUIRE_GPIOLIB
102 select VLYNQ
103 select HAVE_CLK
104 help
105 Support for the Texas Instruments AR7 System-on-a-Chip
106 family: TNETD7100, 7200 and 7300.
107
108 config ATH25
109 bool "Atheros AR231x/AR531x SoC support"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_MIPS_CPU
114 select IRQ_DOMAIN
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_HAS_EARLY_PRINTK
119 help
120 Support for Atheros AR231x and Atheros AR531x based boards
121
122 config ATH79
123 bool "Atheros AR71XX/AR724X/AR913X based boards"
124 select ARCH_HAS_RESET_CONTROLLER
125 select ARCH_REQUIRE_GPIOLIB
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select HAVE_CLK
131 select COMMON_CLK
132 select CLKDEV_LOOKUP
133 select IRQ_MIPS_CPU
134 select MIPS_MACHINE
135 select SYS_HAS_CPU_MIPS32_R2
136 select SYS_HAS_EARLY_PRINTK
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_SUPPORTS_MIPS16
140 select SYS_SUPPORTS_ZBOOT
141 select USE_OF
142 help
143 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
144
145 config BMIPS_GENERIC
146 bool "Broadcom Generic BMIPS kernel"
147 select BOOT_RAW
148 select NO_EXCEPT_FILL
149 select USE_OF
150 select CEVT_R4K
151 select CSRC_R4K
152 select SYNC_R4K
153 select COMMON_CLK
154 select BCM6345_L1_IRQ
155 select BCM7038_L1_IRQ
156 select BCM7120_L2_IRQ
157 select BRCMSTB_L2_IRQ
158 select IRQ_MIPS_CPU
159 select DMA_NONCOHERENT
160 select SYS_SUPPORTS_32BIT_KERNEL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_BIG_ENDIAN
163 select SYS_SUPPORTS_HIGHMEM
164 select SYS_HAS_CPU_BMIPS32_3300
165 select SYS_HAS_CPU_BMIPS4350
166 select SYS_HAS_CPU_BMIPS4380
167 select SYS_HAS_CPU_BMIPS5000
168 select SWAP_IO_SPACE
169 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
170 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173 select ARCH_WANT_OPTIONAL_GPIOLIB
174 help
175 Build a generic DT-based kernel image that boots on select
176 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
177 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
178 must be set appropriately for your board.
179
180 config BCM47XX
181 bool "Broadcom BCM47XX based boards"
182 select ARCH_WANT_OPTIONAL_GPIOLIB
183 select BOOT_RAW
184 select CEVT_R4K
185 select CSRC_R4K
186 select DMA_NONCOHERENT
187 select HW_HAS_PCI
188 select IRQ_MIPS_CPU
189 select SYS_HAS_CPU_MIPS32_R1
190 select NO_EXCEPT_FILL
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_MIPS16
194 select SYS_HAS_EARLY_PRINTK
195 select USE_GENERIC_EARLY_PRINTK_8250
196 select GPIOLIB
197 select LEDS_GPIO_REGISTER
198 select BCM47XX_NVRAM
199 help
200 Support for BCM47XX based boards
201
202 config BCM63XX
203 bool "Broadcom BCM63XX based boards"
204 select BOOT_RAW
205 select CEVT_R4K
206 select CSRC_R4K
207 select SYNC_R4K
208 select DMA_NONCOHERENT
209 select IRQ_MIPS_CPU
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_BIG_ENDIAN
212 select SYS_HAS_EARLY_PRINTK
213 select SWAP_IO_SPACE
214 select ARCH_REQUIRE_GPIOLIB
215 select HAVE_CLK
216 select MIPS_L1_CACHE_SHIFT_4
217 help
218 Support for BCM63XX based boards
219
220 config MIPS_COBALT
221 bool "Cobalt Server"
222 select CEVT_R4K
223 select CSRC_R4K
224 select CEVT_GT641XX
225 select DMA_NONCOHERENT
226 select HW_HAS_PCI
227 select I8253
228 select I8259
229 select IRQ_MIPS_CPU
230 select IRQ_GT641XX
231 select PCI_GT64XXX_PCI0
232 select PCI
233 select SYS_HAS_CPU_NEVADA
234 select SYS_HAS_EARLY_PRINTK
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_64BIT_KERNEL
237 select SYS_SUPPORTS_LITTLE_ENDIAN
238 select USE_GENERIC_EARLY_PRINTK_8250
239
240 config MACH_DECSTATION
241 bool "DECstations"
242 select BOOT_ELF32
243 select CEVT_DS1287
244 select CEVT_R4K if CPU_R4X00
245 select CSRC_IOASIC
246 select CSRC_R4K if CPU_R4X00
247 select CPU_DADDI_WORKAROUNDS if 64BIT
248 select CPU_R4000_WORKAROUNDS if 64BIT
249 select CPU_R4400_WORKAROUNDS if 64BIT
250 select DMA_NONCOHERENT
251 select NO_IOPORT_MAP
252 select IRQ_MIPS_CPU
253 select SYS_HAS_CPU_R3000
254 select SYS_HAS_CPU_R4X00
255 select SYS_SUPPORTS_32BIT_KERNEL
256 select SYS_SUPPORTS_64BIT_KERNEL
257 select SYS_SUPPORTS_LITTLE_ENDIAN
258 select SYS_SUPPORTS_128HZ
259 select SYS_SUPPORTS_256HZ
260 select SYS_SUPPORTS_1024HZ
261 select MIPS_L1_CACHE_SHIFT_4
262 help
263 This enables support for DEC's MIPS based workstations. For details
264 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
265 DECstation porting pages on <http://decstation.unix-ag.org/>.
266
267 If you have one of the following DECstation Models you definitely
268 want to choose R4xx0 for the CPU Type:
269
270 DECstation 5000/50
271 DECstation 5000/150
272 DECstation 5000/260
273 DECsystem 5900/260
274
275 otherwise choose R3000.
276
277 config MACH_JAZZ
278 bool "Jazz family of machines"
279 select FW_ARC
280 select FW_ARC32
281 select ARCH_MAY_HAVE_PC_FDC
282 select CEVT_R4K
283 select CSRC_R4K
284 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
285 select GENERIC_ISA_DMA
286 select HAVE_PCSPKR_PLATFORM
287 select IRQ_MIPS_CPU
288 select I8253
289 select I8259
290 select ISA
291 select SYS_HAS_CPU_R4X00
292 select SYS_SUPPORTS_32BIT_KERNEL
293 select SYS_SUPPORTS_64BIT_KERNEL
294 select SYS_SUPPORTS_100HZ
295 help
296 This a family of machines based on the MIPS R4030 chipset which was
297 used by several vendors to build RISC/os and Windows NT workstations.
298 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
299 Olivetti M700-10 workstations.
300
301 config MACH_INGENIC
302 bool "Ingenic SoC based machines"
303 select SYS_SUPPORTS_32BIT_KERNEL
304 select SYS_SUPPORTS_LITTLE_ENDIAN
305 select SYS_SUPPORTS_ZBOOT_UART16550
306 select DMA_NONCOHERENT
307 select IRQ_MIPS_CPU
308 select ARCH_REQUIRE_GPIOLIB
309 select COMMON_CLK
310 select GENERIC_IRQ_CHIP
311 select BUILTIN_DTB
312 select USE_OF
313 select LIBFDT
314
315 config LANTIQ
316 bool "Lantiq based platforms"
317 select DMA_NONCOHERENT
318 select IRQ_MIPS_CPU
319 select CEVT_R4K
320 select CSRC_R4K
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_SUPPORTS_32BIT_KERNEL
325 select SYS_SUPPORTS_MIPS16
326 select SYS_SUPPORTS_MULTITHREADING
327 select SYS_HAS_EARLY_PRINTK
328 select ARCH_REQUIRE_GPIOLIB
329 select SWAP_IO_SPACE
330 select BOOT_RAW
331 select CLKDEV_LOOKUP
332 select USE_OF
333 select PINCTRL
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
337
338 config LASAT
339 bool "LASAT Networks platforms"
340 select CEVT_R4K
341 select CRC32
342 select CSRC_R4K
343 select DMA_NONCOHERENT
344 select SYS_HAS_EARLY_PRINTK
345 select HW_HAS_PCI
346 select IRQ_MIPS_CPU
347 select PCI_GT64XXX_PCI0
348 select MIPS_NILE4
349 select R5000_CPU_SCACHE
350 select SYS_HAS_CPU_R5000
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354
355 config MACH_LOONGSON32
356 bool "Loongson-1 family of machines"
357 select SYS_SUPPORTS_ZBOOT
358 help
359 This enables support for the Loongson-1 family of machines.
360
361 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
362 the Institute of Computing Technology (ICT), Chinese Academy of
363 Sciences (CAS).
364
365 config MACH_LOONGSON64
366 bool "Loongson-2/3 family of machines"
367 select SYS_SUPPORTS_ZBOOT
368 help
369 This enables the support of Loongson-2/3 family of machines.
370
371 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
372 family of multi-core CPUs. They are both 64-bit general-purpose
373 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
374 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
375 in the People's Republic of China. The chief architect is Professor
376 Weiwu Hu.
377
378 config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
381 select BOOT_ELF32
382 select BOOT_RAW
383 select CEVT_R4K
384 select CLKSRC_MIPS_GIC
385 select COMMON_CLK
386 select CSRC_R4K
387 select DMA_MAYBE_COHERENT
388 select IRQ_MIPS_CPU
389 select LIBFDT
390 select MFD_SYSCON
391 select MIPS_CPU_SCACHE
392 select MIPS_GIC
393 select PINCTRL
394 select REGULATOR
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
403 select USE_OF
404 help
405 This enables support for the IMG Pistachio SoC platform.
406
407 config MACH_XILFPGA
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
410 select BOOT_ELF32
411 select BOOT_RAW
412 select BUILTIN_DTB
413 select CEVT_R4K
414 select COMMON_CLK
415 select CSRC_R4K
416 select IRQ_MIPS_CPU
417 select LIBFDT
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
424 select USE_OF
425 select USE_GENERIC_EARLY_PRINTK_8250
426 help
427 This enables support for the IMG University Program MIPSfpga platform.
428
429 config MIPS_MALTA
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
432 select BOOT_ELF32
433 select BOOT_RAW
434 select BUILTIN_DTB
435 select CEVT_R4K
436 select CSRC_R4K
437 select CLKSRC_MIPS_GIC
438 select COMMON_CLK
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
442 select IRQ_MIPS_CPU
443 select MIPS_GIC
444 select HW_HAS_PCI
445 select I8253
446 select I8259
447 select MIPS_BONITO64
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
451 select MIPS_MSC
452 select SMP_UP if SMP
453 select SWAP_IO_SPACE
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
476 select USE_OF
477 select ZONE_DMA32 if 64BIT
478 select BUILTIN_DTB
479 select LIBFDT
480 help
481 This enables support for the MIPS Technologies Malta evaluation
482 board.
483
484 config MACH_PIC32
485 bool "Microchip PIC32 Family"
486 help
487 This enables support for the Microchip PIC32 family of platforms.
488
489 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
490 microcontrollers.
491
492 config MIPS_SEAD3
493 bool "MIPS SEAD3 board"
494 select BOOT_ELF32
495 select BOOT_RAW
496 select BUILTIN_DTB
497 select CEVT_R4K
498 select CSRC_R4K
499 select CLKSRC_MIPS_GIC
500 select COMMON_CLK
501 select CPU_MIPSR2_IRQ_VI
502 select CPU_MIPSR2_IRQ_EI
503 select DMA_NONCOHERENT
504 select IRQ_MIPS_CPU
505 select MIPS_GIC
506 select LIBFDT
507 select MIPS_MSC
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_HAS_CPU_MIPS64_R1
511 select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_64BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select SYS_SUPPORTS_SMARTMIPS
517 select SYS_SUPPORTS_MICROMIPS
518 select SYS_SUPPORTS_MIPS16
519 select USB_EHCI_BIG_ENDIAN_DESC
520 select USB_EHCI_BIG_ENDIAN_MMIO
521 select USE_OF
522 help
523 This enables support for the MIPS Technologies SEAD3 evaluation
524 board.
525
526 config NEC_MARKEINS
527 bool "NEC EMMA2RH Mark-eins board"
528 select SOC_EMMA2RH
529 select HW_HAS_PCI
530 help
531 This enables support for the NEC Electronics Mark-eins boards.
532
533 config MACH_VR41XX
534 bool "NEC VR4100 series based machines"
535 select CEVT_R4K
536 select CSRC_R4K
537 select SYS_HAS_CPU_VR41XX
538 select SYS_SUPPORTS_MIPS16
539 select ARCH_REQUIRE_GPIOLIB
540
541 config NXP_STB220
542 bool "NXP STB220 board"
543 select SOC_PNX833X
544 help
545 Support for NXP Semiconductors STB220 Development Board.
546
547 config NXP_STB225
548 bool "NXP 225 board"
549 select SOC_PNX833X
550 select SOC_PNX8335
551 help
552 Support for NXP Semiconductors STB225 Development Board.
553
554 config PMC_MSP
555 bool "PMC-Sierra MSP chipsets"
556 select CEVT_R4K
557 select CSRC_R4K
558 select DMA_NONCOHERENT
559 select SWAP_IO_SPACE
560 select NO_EXCEPT_FILL
561 select BOOT_RAW
562 select SYS_HAS_CPU_MIPS32_R1
563 select SYS_HAS_CPU_MIPS32_R2
564 select SYS_SUPPORTS_32BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_MIPS16
567 select IRQ_MIPS_CPU
568 select SERIAL_8250
569 select SERIAL_8250_CONSOLE
570 select USB_EHCI_BIG_ENDIAN_MMIO
571 select USB_EHCI_BIG_ENDIAN_DESC
572 help
573 This adds support for the PMC-Sierra family of Multi-Service
574 Processor System-On-A-Chips. These parts include a number
575 of integrated peripherals, interfaces and DSPs in addition to
576 a variety of MIPS cores.
577
578 config RALINK
579 bool "Ralink based machines"
580 select CEVT_R4K
581 select CSRC_R4K
582 select BOOT_RAW
583 select DMA_NONCOHERENT
584 select IRQ_MIPS_CPU
585 select USE_OF
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_LITTLE_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select SYS_HAS_EARLY_PRINTK
592 select CLKDEV_LOOKUP
593 select ARCH_HAS_RESET_CONTROLLER
594 select RESET_CONTROLLER
595
596 config SGI_IP22
597 bool "SGI IP22 (Indy/Indigo2)"
598 select FW_ARC
599 select FW_ARC32
600 select BOOT_ELF32
601 select CEVT_R4K
602 select CSRC_R4K
603 select DEFAULT_SGI_PARTITION
604 select DMA_NONCOHERENT
605 select HW_HAS_EISA
606 select I8253
607 select I8259
608 select IP22_CPU_SCACHE
609 select IRQ_MIPS_CPU
610 select GENERIC_ISA_DMA_SUPPORT_BROKEN
611 select SGI_HAS_I8042
612 select SGI_HAS_INDYDOG
613 select SGI_HAS_HAL2
614 select SGI_HAS_SEEQ
615 select SGI_HAS_WD93
616 select SGI_HAS_ZILOG
617 select SWAP_IO_SPACE
618 select SYS_HAS_CPU_R4X00
619 select SYS_HAS_CPU_R5000
620 #
621 # Disable EARLY_PRINTK for now since it leads to overwritten prom
622 # memory during early boot on some machines.
623 #
624 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
625 # for a more details discussion
626 #
627 # select SYS_HAS_EARLY_PRINTK
628 select SYS_SUPPORTS_32BIT_KERNEL
629 select SYS_SUPPORTS_64BIT_KERNEL
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select MIPS_L1_CACHE_SHIFT_7
632 help
633 This are the SGI Indy, Challenge S and Indigo2, as well as certain
634 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
635 that runs on these, say Y here.
636
637 config SGI_IP27
638 bool "SGI IP27 (Origin200/2000)"
639 select FW_ARC
640 select FW_ARC64
641 select BOOT_ELF64
642 select DEFAULT_SGI_PARTITION
643 select DMA_COHERENT
644 select SYS_HAS_EARLY_PRINTK
645 select HW_HAS_PCI
646 select NR_CPUS_DEFAULT_64
647 select SYS_HAS_CPU_R10000
648 select SYS_SUPPORTS_64BIT_KERNEL
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_NUMA
651 select SYS_SUPPORTS_SMP
652 select MIPS_L1_CACHE_SHIFT_7
653 help
654 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
655 workstations. To compile a Linux kernel that runs on these, say Y
656 here.
657
658 config SGI_IP28
659 bool "SGI IP28 (Indigo2 R10k)"
660 select FW_ARC
661 select FW_ARC64
662 select BOOT_ELF64
663 select CEVT_R4K
664 select CSRC_R4K
665 select DEFAULT_SGI_PARTITION
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA_SUPPORT_BROKEN
668 select IRQ_MIPS_CPU
669 select HW_HAS_EISA
670 select I8253
671 select I8259
672 select SGI_HAS_I8042
673 select SGI_HAS_INDYDOG
674 select SGI_HAS_HAL2
675 select SGI_HAS_SEEQ
676 select SGI_HAS_WD93
677 select SGI_HAS_ZILOG
678 select SWAP_IO_SPACE
679 select SYS_HAS_CPU_R10000
680 #
681 # Disable EARLY_PRINTK for now since it leads to overwritten prom
682 # memory during early boot on some machines.
683 #
684 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
685 # for a more details discussion
686 #
687 # select SYS_HAS_EARLY_PRINTK
688 select SYS_SUPPORTS_64BIT_KERNEL
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select MIPS_L1_CACHE_SHIFT_7
691 help
692 This is the SGI Indigo2 with R10000 processor. To compile a Linux
693 kernel that runs on these, say Y here.
694
695 config SGI_IP32
696 bool "SGI IP32 (O2)"
697 select FW_ARC
698 select FW_ARC32
699 select BOOT_ELF32
700 select CEVT_R4K
701 select CSRC_R4K
702 select DMA_NONCOHERENT
703 select HW_HAS_PCI
704 select IRQ_MIPS_CPU
705 select R5000_CPU_SCACHE
706 select RM7000_CPU_SCACHE
707 select SYS_HAS_CPU_R5000
708 select SYS_HAS_CPU_R10000 if BROKEN
709 select SYS_HAS_CPU_RM7000
710 select SYS_HAS_CPU_NEVADA
711 select SYS_SUPPORTS_64BIT_KERNEL
712 select SYS_SUPPORTS_BIG_ENDIAN
713 help
714 If you want this kernel to run on SGI O2 workstation, say Y here.
715
716 config SIBYTE_CRHINE
717 bool "Sibyte BCM91120C-CRhine"
718 select BOOT_ELF32
719 select DMA_COHERENT
720 select SIBYTE_BCM1120
721 select SWAP_IO_SPACE
722 select SYS_HAS_CPU_SB1
723 select SYS_SUPPORTS_BIG_ENDIAN
724 select SYS_SUPPORTS_LITTLE_ENDIAN
725
726 config SIBYTE_CARMEL
727 bool "Sibyte BCM91120x-Carmel"
728 select BOOT_ELF32
729 select DMA_COHERENT
730 select SIBYTE_BCM1120
731 select SWAP_IO_SPACE
732 select SYS_HAS_CPU_SB1
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
735
736 config SIBYTE_CRHONE
737 bool "Sibyte BCM91125C-CRhone"
738 select BOOT_ELF32
739 select DMA_COHERENT
740 select SIBYTE_BCM1125
741 select SWAP_IO_SPACE
742 select SYS_HAS_CPU_SB1
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HIGHMEM
745 select SYS_SUPPORTS_LITTLE_ENDIAN
746
747 config SIBYTE_RHONE
748 bool "Sibyte BCM91125E-Rhone"
749 select BOOT_ELF32
750 select DMA_COHERENT
751 select SIBYTE_BCM1125H
752 select SWAP_IO_SPACE
753 select SYS_HAS_CPU_SB1
754 select SYS_SUPPORTS_BIG_ENDIAN
755 select SYS_SUPPORTS_LITTLE_ENDIAN
756
757 config SIBYTE_SWARM
758 bool "Sibyte BCM91250A-SWARM"
759 select BOOT_ELF32
760 select DMA_COHERENT
761 select HAVE_PATA_PLATFORM
762 select SIBYTE_SB1250
763 select SWAP_IO_SPACE
764 select SYS_HAS_CPU_SB1
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_HIGHMEM
767 select SYS_SUPPORTS_LITTLE_ENDIAN
768 select ZONE_DMA32 if 64BIT
769
770 config SIBYTE_LITTLESUR
771 bool "Sibyte BCM91250C2-LittleSur"
772 select BOOT_ELF32
773 select DMA_COHERENT
774 select HAVE_PATA_PLATFORM
775 select SIBYTE_SB1250
776 select SWAP_IO_SPACE
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select SYS_SUPPORTS_LITTLE_ENDIAN
781
782 config SIBYTE_SENTOSA
783 bool "Sibyte BCM91250E-Sentosa"
784 select BOOT_ELF32
785 select DMA_COHERENT
786 select SIBYTE_SB1250
787 select SWAP_IO_SPACE
788 select SYS_HAS_CPU_SB1
789 select SYS_SUPPORTS_BIG_ENDIAN
790 select SYS_SUPPORTS_LITTLE_ENDIAN
791
792 config SIBYTE_BIGSUR
793 bool "Sibyte BCM91480B-BigSur"
794 select BOOT_ELF32
795 select DMA_COHERENT
796 select NR_CPUS_DEFAULT_4
797 select SIBYTE_BCM1x80
798 select SWAP_IO_SPACE
799 select SYS_HAS_CPU_SB1
800 select SYS_SUPPORTS_BIG_ENDIAN
801 select SYS_SUPPORTS_HIGHMEM
802 select SYS_SUPPORTS_LITTLE_ENDIAN
803 select ZONE_DMA32 if 64BIT
804
805 config SNI_RM
806 bool "SNI RM200/300/400"
807 select FW_ARC if CPU_LITTLE_ENDIAN
808 select FW_ARC32 if CPU_LITTLE_ENDIAN
809 select FW_SNIPROM if CPU_BIG_ENDIAN
810 select ARCH_MAY_HAVE_PC_FDC
811 select BOOT_ELF32
812 select CEVT_R4K
813 select CSRC_R4K
814 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
815 select DMA_NONCOHERENT
816 select GENERIC_ISA_DMA
817 select HAVE_PCSPKR_PLATFORM
818 select HW_HAS_EISA
819 select HW_HAS_PCI
820 select IRQ_MIPS_CPU
821 select I8253
822 select I8259
823 select ISA
824 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
825 select SYS_HAS_CPU_R4X00
826 select SYS_HAS_CPU_R5000
827 select SYS_HAS_CPU_R10000
828 select R5000_CPU_SCACHE
829 select SYS_HAS_EARLY_PRINTK
830 select SYS_SUPPORTS_32BIT_KERNEL
831 select SYS_SUPPORTS_64BIT_KERNEL
832 select SYS_SUPPORTS_BIG_ENDIAN
833 select SYS_SUPPORTS_HIGHMEM
834 select SYS_SUPPORTS_LITTLE_ENDIAN
835 help
836 The SNI RM200/300/400 are MIPS-based machines manufactured by
837 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
838 Technology and now in turn merged with Fujitsu. Say Y here to
839 support this machine type.
840
841 config MACH_TX39XX
842 bool "Toshiba TX39 series based machines"
843
844 config MACH_TX49XX
845 bool "Toshiba TX49 series based machines"
846
847 config MIKROTIK_RB532
848 bool "Mikrotik RB532 boards"
849 select CEVT_R4K
850 select CSRC_R4K
851 select DMA_NONCOHERENT
852 select HW_HAS_PCI
853 select IRQ_MIPS_CPU
854 select SYS_HAS_CPU_MIPS32_R1
855 select SYS_SUPPORTS_32BIT_KERNEL
856 select SYS_SUPPORTS_LITTLE_ENDIAN
857 select SWAP_IO_SPACE
858 select BOOT_RAW
859 select ARCH_REQUIRE_GPIOLIB
860 select MIPS_L1_CACHE_SHIFT_4
861 help
862 Support the Mikrotik(tm) RouterBoard 532 series,
863 based on the IDT RC32434 SoC.
864
865 config CAVIUM_OCTEON_SOC
866 bool "Cavium Networks Octeon SoC based boards"
867 select CEVT_R4K
868 select ARCH_PHYS_ADDR_T_64BIT
869 select DMA_COHERENT
870 select SYS_SUPPORTS_64BIT_KERNEL
871 select SYS_SUPPORTS_BIG_ENDIAN
872 select EDAC_SUPPORT
873 select EDAC_ATOMIC_SCRUB
874 select SYS_SUPPORTS_LITTLE_ENDIAN
875 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
876 select SYS_HAS_EARLY_PRINTK
877 select SYS_HAS_CPU_CAVIUM_OCTEON
878 select SWAP_IO_SPACE
879 select HW_HAS_PCI
880 select ZONE_DMA32
881 select HOLES_IN_ZONE
882 select ARCH_REQUIRE_GPIOLIB
883 select LIBFDT
884 select USE_OF
885 select ARCH_SPARSEMEM_ENABLE
886 select SYS_SUPPORTS_SMP
887 select NR_CPUS_DEFAULT_16
888 select BUILTIN_DTB
889 select MTD_COMPLEX_MAPPINGS
890 help
891 This option supports all of the Octeon reference boards from Cavium
892 Networks. It builds a kernel that dynamically determines the Octeon
893 CPU type and supports all known board reference implementations.
894 Some of the supported boards are:
895 EBT3000
896 EBH3000
897 EBH3100
898 Thunder
899 Kodama
900 Hikari
901 Say Y here for most Octeon reference boards.
902
903 config NLM_XLR_BOARD
904 bool "Netlogic XLR/XLS based systems"
905 select BOOT_ELF32
906 select NLM_COMMON
907 select SYS_HAS_CPU_XLR
908 select SYS_SUPPORTS_SMP
909 select HW_HAS_PCI
910 select SWAP_IO_SPACE
911 select SYS_SUPPORTS_32BIT_KERNEL
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select ARCH_PHYS_ADDR_T_64BIT
914 select SYS_SUPPORTS_BIG_ENDIAN
915 select SYS_SUPPORTS_HIGHMEM
916 select DMA_COHERENT
917 select NR_CPUS_DEFAULT_32
918 select CEVT_R4K
919 select CSRC_R4K
920 select IRQ_MIPS_CPU
921 select ZONE_DMA32 if 64BIT
922 select SYNC_R4K
923 select SYS_HAS_EARLY_PRINTK
924 select SYS_SUPPORTS_ZBOOT
925 select SYS_SUPPORTS_ZBOOT_UART16550
926 help
927 Support for systems based on Netlogic XLR and XLS processors.
928 Say Y here if you have a XLR or XLS based board.
929
930 config NLM_XLP_BOARD
931 bool "Netlogic XLP based systems"
932 select BOOT_ELF32
933 select NLM_COMMON
934 select SYS_HAS_CPU_XLP
935 select SYS_SUPPORTS_SMP
936 select HW_HAS_PCI
937 select SYS_SUPPORTS_32BIT_KERNEL
938 select SYS_SUPPORTS_64BIT_KERNEL
939 select ARCH_PHYS_ADDR_T_64BIT
940 select ARCH_REQUIRE_GPIOLIB
941 select SYS_SUPPORTS_BIG_ENDIAN
942 select SYS_SUPPORTS_LITTLE_ENDIAN
943 select SYS_SUPPORTS_HIGHMEM
944 select DMA_COHERENT
945 select NR_CPUS_DEFAULT_32
946 select CEVT_R4K
947 select CSRC_R4K
948 select IRQ_MIPS_CPU
949 select ZONE_DMA32 if 64BIT
950 select SYNC_R4K
951 select SYS_HAS_EARLY_PRINTK
952 select USE_OF
953 select SYS_SUPPORTS_ZBOOT
954 select SYS_SUPPORTS_ZBOOT_UART16550
955 help
956 This board is based on Netlogic XLP Processor.
957 Say Y here if you have a XLP based board.
958
959 config MIPS_PARAVIRT
960 bool "Para-Virtualized guest system"
961 select CEVT_R4K
962 select CSRC_R4K
963 select DMA_COHERENT
964 select SYS_SUPPORTS_64BIT_KERNEL
965 select SYS_SUPPORTS_32BIT_KERNEL
966 select SYS_SUPPORTS_BIG_ENDIAN
967 select SYS_SUPPORTS_SMP
968 select NR_CPUS_DEFAULT_4
969 select SYS_HAS_EARLY_PRINTK
970 select SYS_HAS_CPU_MIPS32_R2
971 select SYS_HAS_CPU_MIPS64_R2
972 select SYS_HAS_CPU_CAVIUM_OCTEON
973 select HW_HAS_PCI
974 select SWAP_IO_SPACE
975 help
976 This option supports guest running under ????
977
978 endchoice
979
980 source "arch/mips/alchemy/Kconfig"
981 source "arch/mips/ath25/Kconfig"
982 source "arch/mips/ath79/Kconfig"
983 source "arch/mips/bcm47xx/Kconfig"
984 source "arch/mips/bcm63xx/Kconfig"
985 source "arch/mips/bmips/Kconfig"
986 source "arch/mips/jazz/Kconfig"
987 source "arch/mips/jz4740/Kconfig"
988 source "arch/mips/lantiq/Kconfig"
989 source "arch/mips/lasat/Kconfig"
990 source "arch/mips/pic32/Kconfig"
991 source "arch/mips/pistachio/Kconfig"
992 source "arch/mips/pmcs-msp71xx/Kconfig"
993 source "arch/mips/ralink/Kconfig"
994 source "arch/mips/sgi-ip27/Kconfig"
995 source "arch/mips/sibyte/Kconfig"
996 source "arch/mips/txx9/Kconfig"
997 source "arch/mips/vr41xx/Kconfig"
998 source "arch/mips/cavium-octeon/Kconfig"
999 source "arch/mips/loongson32/Kconfig"
1000 source "arch/mips/loongson64/Kconfig"
1001 source "arch/mips/netlogic/Kconfig"
1002 source "arch/mips/paravirt/Kconfig"
1003 source "arch/mips/xilfpga/Kconfig"
1004
1005 endmenu
1006
1007 config RWSEM_GENERIC_SPINLOCK
1008 bool
1009 default y
1010
1011 config RWSEM_XCHGADD_ALGORITHM
1012 bool
1013
1014 config ARCH_HAS_ILOG2_U32
1015 bool
1016 default n
1017
1018 config ARCH_HAS_ILOG2_U64
1019 bool
1020 default n
1021
1022 config GENERIC_HWEIGHT
1023 bool
1024 default y
1025
1026 config GENERIC_CALIBRATE_DELAY
1027 bool
1028 default y
1029
1030 config SCHED_OMIT_FRAME_POINTER
1031 bool
1032 default y
1033
1034 #
1035 # Select some configuration options automatically based on user selections.
1036 #
1037 config FW_ARC
1038 bool
1039
1040 config ARCH_MAY_HAVE_PC_FDC
1041 bool
1042
1043 config BOOT_RAW
1044 bool
1045
1046 config CEVT_BCM1480
1047 bool
1048
1049 config CEVT_DS1287
1050 bool
1051
1052 config CEVT_GT641XX
1053 bool
1054
1055 config CEVT_R4K
1056 bool
1057
1058 config CEVT_SB1250
1059 bool
1060
1061 config CEVT_TXX9
1062 bool
1063
1064 config CSRC_BCM1480
1065 bool
1066
1067 config CSRC_IOASIC
1068 bool
1069
1070 config CSRC_R4K
1071 bool
1072
1073 config CSRC_SB1250
1074 bool
1075
1076 config MIPS_CLOCK_VSYSCALL
1077 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1078
1079 config GPIO_TXX9
1080 select ARCH_REQUIRE_GPIOLIB
1081 bool
1082
1083 config FW_CFE
1084 bool
1085
1086 config ARCH_DMA_ADDR_T_64BIT
1087 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1088
1089 config ARCH_SUPPORTS_UPROBES
1090 bool
1091
1092 config DMA_MAYBE_COHERENT
1093 select DMA_NONCOHERENT
1094 bool
1095
1096 config DMA_COHERENT
1097 bool
1098
1099 config DMA_NONCOHERENT
1100 bool
1101 select NEED_DMA_MAP_STATE
1102
1103 config NEED_DMA_MAP_STATE
1104 bool
1105
1106 config SYS_HAS_EARLY_PRINTK
1107 bool
1108
1109 config HOTPLUG_CPU
1110 bool "Support for hot-pluggable CPUs"
1111 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1112 help
1113 Say Y here to allow turning CPUs off and on. CPUs can be
1114 controlled through /sys/devices/system/cpu.
1115 (Note: power management support will enable this option
1116 automatically on SMP systems. )
1117 Say N if you want to disable CPU hotplug.
1118
1119 config SYS_SUPPORTS_HOTPLUG_CPU
1120 bool
1121
1122 config MIPS_BONITO64
1123 bool
1124
1125 config MIPS_MSC
1126 bool
1127
1128 config MIPS_NILE4
1129 bool
1130
1131 config SYNC_R4K
1132 bool
1133
1134 config MIPS_MACHINE
1135 def_bool n
1136
1137 config NO_IOPORT_MAP
1138 def_bool n
1139
1140 config GENERIC_CSUM
1141 bool
1142
1143 config GENERIC_ISA_DMA
1144 bool
1145 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1146 select ISA_DMA_API
1147
1148 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1149 bool
1150 select GENERIC_ISA_DMA
1151
1152 config ISA_DMA_API
1153 bool
1154
1155 config HOLES_IN_ZONE
1156 bool
1157
1158 #
1159 # Endianness selection. Sufficiently obscure so many users don't know what to
1160 # answer,so we try hard to limit the available choices. Also the use of a
1161 # choice statement should be more obvious to the user.
1162 #
1163 choice
1164 prompt "Endianness selection"
1165 help
1166 Some MIPS machines can be configured for either little or big endian
1167 byte order. These modes require different kernels and a different
1168 Linux distribution. In general there is one preferred byteorder for a
1169 particular system but some systems are just as commonly used in the
1170 one or the other endianness.
1171
1172 config CPU_BIG_ENDIAN
1173 bool "Big endian"
1174 depends on SYS_SUPPORTS_BIG_ENDIAN
1175
1176 config CPU_LITTLE_ENDIAN
1177 bool "Little endian"
1178 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1179
1180 endchoice
1181
1182 config EXPORT_UASM
1183 bool
1184
1185 config SYS_SUPPORTS_APM_EMULATION
1186 bool
1187
1188 config SYS_SUPPORTS_BIG_ENDIAN
1189 bool
1190
1191 config SYS_SUPPORTS_LITTLE_ENDIAN
1192 bool
1193
1194 config SYS_SUPPORTS_HUGETLBFS
1195 bool
1196 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1197 default y
1198
1199 config MIPS_HUGE_TLB_SUPPORT
1200 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1201
1202 config IRQ_CPU_RM7K
1203 bool
1204
1205 config IRQ_MSP_SLP
1206 bool
1207
1208 config IRQ_MSP_CIC
1209 bool
1210
1211 config IRQ_TXX9
1212 bool
1213
1214 config IRQ_GT641XX
1215 bool
1216
1217 config PCI_GT64XXX_PCI0
1218 bool
1219
1220 config NO_EXCEPT_FILL
1221 bool
1222
1223 config SOC_EMMA2RH
1224 bool
1225 select CEVT_R4K
1226 select CSRC_R4K
1227 select DMA_NONCOHERENT
1228 select IRQ_MIPS_CPU
1229 select SWAP_IO_SPACE
1230 select SYS_HAS_CPU_R5500
1231 select SYS_SUPPORTS_32BIT_KERNEL
1232 select SYS_SUPPORTS_64BIT_KERNEL
1233 select SYS_SUPPORTS_BIG_ENDIAN
1234
1235 config SOC_PNX833X
1236 bool
1237 select CEVT_R4K
1238 select CSRC_R4K
1239 select IRQ_MIPS_CPU
1240 select DMA_NONCOHERENT
1241 select SYS_HAS_CPU_MIPS32_R2
1242 select SYS_SUPPORTS_32BIT_KERNEL
1243 select SYS_SUPPORTS_LITTLE_ENDIAN
1244 select SYS_SUPPORTS_BIG_ENDIAN
1245 select SYS_SUPPORTS_MIPS16
1246 select CPU_MIPSR2_IRQ_VI
1247
1248 config SOC_PNX8335
1249 bool
1250 select SOC_PNX833X
1251
1252 config MIPS_SPRAM
1253 bool
1254
1255 config SWAP_IO_SPACE
1256 bool
1257
1258 config SGI_HAS_INDYDOG
1259 bool
1260
1261 config SGI_HAS_HAL2
1262 bool
1263
1264 config SGI_HAS_SEEQ
1265 bool
1266
1267 config SGI_HAS_WD93
1268 bool
1269
1270 config SGI_HAS_ZILOG
1271 bool
1272
1273 config SGI_HAS_I8042
1274 bool
1275
1276 config DEFAULT_SGI_PARTITION
1277 bool
1278
1279 config FW_ARC32
1280 bool
1281
1282 config FW_SNIPROM
1283 bool
1284
1285 config BOOT_ELF32
1286 bool
1287
1288 config MIPS_L1_CACHE_SHIFT_4
1289 bool
1290
1291 config MIPS_L1_CACHE_SHIFT_5
1292 bool
1293
1294 config MIPS_L1_CACHE_SHIFT_6
1295 bool
1296
1297 config MIPS_L1_CACHE_SHIFT_7
1298 bool
1299
1300 config MIPS_L1_CACHE_SHIFT
1301 int
1302 default "7" if MIPS_L1_CACHE_SHIFT_7
1303 default "6" if MIPS_L1_CACHE_SHIFT_6
1304 default "5" if MIPS_L1_CACHE_SHIFT_5
1305 default "4" if MIPS_L1_CACHE_SHIFT_4
1306 default "5"
1307
1308 config HAVE_STD_PC_SERIAL_PORT
1309 bool
1310
1311 config ARC_CONSOLE
1312 bool "ARC console support"
1313 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1314
1315 config ARC_MEMORY
1316 bool
1317 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1318 default y
1319
1320 config ARC_PROMLIB
1321 bool
1322 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1323 default y
1324
1325 config FW_ARC64
1326 bool
1327
1328 config BOOT_ELF64
1329 bool
1330
1331 menu "CPU selection"
1332
1333 choice
1334 prompt "CPU type"
1335 default CPU_R4X00
1336
1337 config CPU_LOONGSON3
1338 bool "Loongson 3 CPU"
1339 depends on SYS_HAS_CPU_LOONGSON3
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HIGHMEM
1342 select CPU_SUPPORTS_HUGEPAGES
1343 select WEAK_ORDERING
1344 select WEAK_REORDERING_BEYOND_LLSC
1345 select ARCH_REQUIRE_GPIOLIB
1346 help
1347 The Loongson 3 processor implements the MIPS64R2 instruction
1348 set with many extensions.
1349
1350 config CPU_LOONGSON2E
1351 bool "Loongson 2E"
1352 depends on SYS_HAS_CPU_LOONGSON2E
1353 select CPU_LOONGSON2
1354 help
1355 The Loongson 2E processor implements the MIPS III instruction set
1356 with many extensions.
1357
1358 It has an internal FPGA northbridge, which is compatible to
1359 bonito64.
1360
1361 config CPU_LOONGSON2F
1362 bool "Loongson 2F"
1363 depends on SYS_HAS_CPU_LOONGSON2F
1364 select CPU_LOONGSON2
1365 select ARCH_REQUIRE_GPIOLIB
1366 help
1367 The Loongson 2F processor implements the MIPS III instruction set
1368 with many extensions.
1369
1370 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1371 have a similar programming interface with FPGA northbridge used in
1372 Loongson2E.
1373
1374 config CPU_LOONGSON1B
1375 bool "Loongson 1B"
1376 depends on SYS_HAS_CPU_LOONGSON1B
1377 select CPU_LOONGSON1
1378 help
1379 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1380 release 2 instruction set.
1381
1382 config CPU_MIPS32_R1
1383 bool "MIPS32 Release 1"
1384 depends on SYS_HAS_CPU_MIPS32_R1
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_32BIT_KERNEL
1387 select CPU_SUPPORTS_HIGHMEM
1388 help
1389 Choose this option to build a kernel for release 1 or later of the
1390 MIPS32 architecture. Most modern embedded systems with a 32-bit
1391 MIPS processor are based on a MIPS32 processor. If you know the
1392 specific type of processor in your system, choose those that one
1393 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1394 Release 2 of the MIPS32 architecture is available since several
1395 years so chances are you even have a MIPS32 Release 2 processor
1396 in which case you should choose CPU_MIPS32_R2 instead for better
1397 performance.
1398
1399 config CPU_MIPS32_R2
1400 bool "MIPS32 Release 2"
1401 depends on SYS_HAS_CPU_MIPS32_R2
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_HIGHMEM
1405 select CPU_SUPPORTS_MSA
1406 select HAVE_KVM
1407 help
1408 Choose this option to build a kernel for release 2 or later of the
1409 MIPS32 architecture. Most modern embedded systems with a 32-bit
1410 MIPS processor are based on a MIPS32 processor. If you know the
1411 specific type of processor in your system, choose those that one
1412 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1413
1414 config CPU_MIPS32_R6
1415 bool "MIPS32 Release 6"
1416 depends on SYS_HAS_CPU_MIPS32_R6
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_HIGHMEM
1420 select CPU_SUPPORTS_MSA
1421 select GENERIC_CSUM
1422 select HAVE_KVM
1423 select MIPS_O32_FP64_SUPPORT
1424 help
1425 Choose this option to build a kernel for release 6 or later of the
1426 MIPS32 architecture. New MIPS processors, starting with the Warrior
1427 family, are based on a MIPS32r6 processor. If you own an older
1428 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1429
1430 config CPU_MIPS64_R1
1431 bool "MIPS64 Release 1"
1432 depends on SYS_HAS_CPU_MIPS64_R1
1433 select CPU_HAS_PREFETCH
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_64BIT_KERNEL
1436 select CPU_SUPPORTS_HIGHMEM
1437 select CPU_SUPPORTS_HUGEPAGES
1438 help
1439 Choose this option to build a kernel for release 1 or later of the
1440 MIPS64 architecture. Many modern embedded systems with a 64-bit
1441 MIPS processor are based on a MIPS64 processor. If you know the
1442 specific type of processor in your system, choose those that one
1443 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1444 Release 2 of the MIPS64 architecture is available since several
1445 years so chances are you even have a MIPS64 Release 2 processor
1446 in which case you should choose CPU_MIPS64_R2 instead for better
1447 performance.
1448
1449 config CPU_MIPS64_R2
1450 bool "MIPS64 Release 2"
1451 depends on SYS_HAS_CPU_MIPS64_R2
1452 select CPU_HAS_PREFETCH
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454 select CPU_SUPPORTS_64BIT_KERNEL
1455 select CPU_SUPPORTS_HIGHMEM
1456 select CPU_SUPPORTS_HUGEPAGES
1457 select CPU_SUPPORTS_MSA
1458 help
1459 Choose this option to build a kernel for release 2 or later of the
1460 MIPS64 architecture. Many modern embedded systems with a 64-bit
1461 MIPS processor are based on a MIPS64 processor. If you know the
1462 specific type of processor in your system, choose those that one
1463 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1464
1465 config CPU_MIPS64_R6
1466 bool "MIPS64 Release 6"
1467 depends on SYS_HAS_CPU_MIPS64_R6
1468 select CPU_HAS_PREFETCH
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_64BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1472 select CPU_SUPPORTS_MSA
1473 select GENERIC_CSUM
1474 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1475 help
1476 Choose this option to build a kernel for release 6 or later of the
1477 MIPS64 architecture. New MIPS processors, starting with the Warrior
1478 family, are based on a MIPS64r6 processor. If you own an older
1479 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1480
1481 config CPU_R3000
1482 bool "R3000"
1483 depends on SYS_HAS_CPU_R3000
1484 select CPU_HAS_WB
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_HIGHMEM
1487 help
1488 Please make sure to pick the right CPU type. Linux/MIPS is not
1489 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1490 *not* work on R4000 machines and vice versa. However, since most
1491 of the supported machines have an R4000 (or similar) CPU, R4x00
1492 might be a safe bet. If the resulting kernel does not work,
1493 try to recompile with R3000.
1494
1495 config CPU_TX39XX
1496 bool "R39XX"
1497 depends on SYS_HAS_CPU_TX39XX
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499
1500 config CPU_VR41XX
1501 bool "R41xx"
1502 depends on SYS_HAS_CPU_VR41XX
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 help
1506 The options selects support for the NEC VR4100 series of processors.
1507 Only choose this option if you have one of these processors as a
1508 kernel built with this option will not run on any other type of
1509 processor or vice versa.
1510
1511 config CPU_R4300
1512 bool "R4300"
1513 depends on SYS_HAS_CPU_R4300
1514 select CPU_SUPPORTS_32BIT_KERNEL
1515 select CPU_SUPPORTS_64BIT_KERNEL
1516 help
1517 MIPS Technologies R4300-series processors.
1518
1519 config CPU_R4X00
1520 bool "R4x00"
1521 depends on SYS_HAS_CPU_R4X00
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HUGEPAGES
1525 help
1526 MIPS Technologies R4000-series processors other than 4300, including
1527 the R4000, R4400, R4600, and 4700.
1528
1529 config CPU_TX49XX
1530 bool "R49XX"
1531 depends on SYS_HAS_CPU_TX49XX
1532 select CPU_HAS_PREFETCH
1533 select CPU_SUPPORTS_32BIT_KERNEL
1534 select CPU_SUPPORTS_64BIT_KERNEL
1535 select CPU_SUPPORTS_HUGEPAGES
1536
1537 config CPU_R5000
1538 bool "R5000"
1539 depends on SYS_HAS_CPU_R5000
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HUGEPAGES
1543 help
1544 MIPS Technologies R5000-series processors other than the Nevada.
1545
1546 config CPU_R5432
1547 bool "R5432"
1548 depends on SYS_HAS_CPU_R5432
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HUGEPAGES
1552
1553 config CPU_R5500
1554 bool "R5500"
1555 depends on SYS_HAS_CPU_R5500
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_64BIT_KERNEL
1558 select CPU_SUPPORTS_HUGEPAGES
1559 help
1560 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1561 instruction set.
1562
1563 config CPU_R6000
1564 bool "R6000"
1565 depends on SYS_HAS_CPU_R6000
1566 select CPU_SUPPORTS_32BIT_KERNEL
1567 help
1568 MIPS Technologies R6000 and R6000A series processors. Note these
1569 processors are extremely rare and the support for them is incomplete.
1570
1571 config CPU_NEVADA
1572 bool "RM52xx"
1573 depends on SYS_HAS_CPU_NEVADA
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_64BIT_KERNEL
1576 select CPU_SUPPORTS_HUGEPAGES
1577 help
1578 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1579
1580 config CPU_R8000
1581 bool "R8000"
1582 depends on SYS_HAS_CPU_R8000
1583 select CPU_HAS_PREFETCH
1584 select CPU_SUPPORTS_64BIT_KERNEL
1585 help
1586 MIPS Technologies R8000 processors. Note these processors are
1587 uncommon and the support for them is incomplete.
1588
1589 config CPU_R10000
1590 bool "R10000"
1591 depends on SYS_HAS_CPU_R10000
1592 select CPU_HAS_PREFETCH
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_64BIT_KERNEL
1595 select CPU_SUPPORTS_HIGHMEM
1596 select CPU_SUPPORTS_HUGEPAGES
1597 help
1598 MIPS Technologies R10000-series processors.
1599
1600 config CPU_RM7000
1601 bool "RM7000"
1602 depends on SYS_HAS_CPU_RM7000
1603 select CPU_HAS_PREFETCH
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1607 select CPU_SUPPORTS_HUGEPAGES
1608
1609 config CPU_SB1
1610 bool "SB1"
1611 depends on SYS_HAS_CPU_SB1
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select WEAK_ORDERING
1617
1618 config CPU_CAVIUM_OCTEON
1619 bool "Cavium Octeon processor"
1620 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1621 select CPU_HAS_PREFETCH
1622 select CPU_SUPPORTS_64BIT_KERNEL
1623 select WEAK_ORDERING
1624 select CPU_SUPPORTS_HIGHMEM
1625 select CPU_SUPPORTS_HUGEPAGES
1626 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1627 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1628 select MIPS_L1_CACHE_SHIFT_7
1629 help
1630 The Cavium Octeon processor is a highly integrated chip containing
1631 many ethernet hardware widgets for networking tasks. The processor
1632 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1633 Full details can be found at http://www.caviumnetworks.com.
1634
1635 config CPU_BMIPS
1636 bool "Broadcom BMIPS"
1637 depends on SYS_HAS_CPU_BMIPS
1638 select CPU_MIPS32
1639 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1640 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1641 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1642 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1643 select CPU_SUPPORTS_32BIT_KERNEL
1644 select DMA_NONCOHERENT
1645 select IRQ_MIPS_CPU
1646 select SWAP_IO_SPACE
1647 select WEAK_ORDERING
1648 select CPU_SUPPORTS_HIGHMEM
1649 select CPU_HAS_PREFETCH
1650 help
1651 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1652
1653 config CPU_XLR
1654 bool "Netlogic XLR SoC"
1655 depends on SYS_HAS_CPU_XLR
1656 select CPU_SUPPORTS_32BIT_KERNEL
1657 select CPU_SUPPORTS_64BIT_KERNEL
1658 select CPU_SUPPORTS_HIGHMEM
1659 select CPU_SUPPORTS_HUGEPAGES
1660 select WEAK_ORDERING
1661 select WEAK_REORDERING_BEYOND_LLSC
1662 help
1663 Netlogic Microsystems XLR/XLS processors.
1664
1665 config CPU_XLP
1666 bool "Netlogic XLP SoC"
1667 depends on SYS_HAS_CPU_XLP
1668 select CPU_SUPPORTS_32BIT_KERNEL
1669 select CPU_SUPPORTS_64BIT_KERNEL
1670 select CPU_SUPPORTS_HIGHMEM
1671 select WEAK_ORDERING
1672 select WEAK_REORDERING_BEYOND_LLSC
1673 select CPU_HAS_PREFETCH
1674 select CPU_MIPSR2
1675 select CPU_SUPPORTS_HUGEPAGES
1676 help
1677 Netlogic Microsystems XLP processors.
1678 endchoice
1679
1680 config CPU_MIPS32_3_5_FEATURES
1681 bool "MIPS32 Release 3.5 Features"
1682 depends on SYS_HAS_CPU_MIPS32_R3_5
1683 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1684 help
1685 Choose this option to build a kernel for release 2 or later of the
1686 MIPS32 architecture including features from the 3.5 release such as
1687 support for Enhanced Virtual Addressing (EVA).
1688
1689 config CPU_MIPS32_3_5_EVA
1690 bool "Enhanced Virtual Addressing (EVA)"
1691 depends on CPU_MIPS32_3_5_FEATURES
1692 select EVA
1693 default y
1694 help
1695 Choose this option if you want to enable the Enhanced Virtual
1696 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1697 One of its primary benefits is an increase in the maximum size
1698 of lowmem (up to 3GB). If unsure, say 'N' here.
1699
1700 config CPU_MIPS32_R5_FEATURES
1701 bool "MIPS32 Release 5 Features"
1702 depends on SYS_HAS_CPU_MIPS32_R5
1703 depends on CPU_MIPS32_R2
1704 help
1705 Choose this option to build a kernel for release 2 or later of the
1706 MIPS32 architecture including features from release 5 such as
1707 support for Extended Physical Addressing (XPA).
1708
1709 config CPU_MIPS32_R5_XPA
1710 bool "Extended Physical Addressing (XPA)"
1711 depends on CPU_MIPS32_R5_FEATURES
1712 depends on !EVA
1713 depends on !PAGE_SIZE_4KB
1714 depends on SYS_SUPPORTS_HIGHMEM
1715 select XPA
1716 select HIGHMEM
1717 select ARCH_PHYS_ADDR_T_64BIT
1718 default n
1719 help
1720 Choose this option if you want to enable the Extended Physical
1721 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1722 benefit is to increase physical addressing equal to or greater
1723 than 40 bits. Note that this has the side effect of turning on
1724 64-bit addressing which in turn makes the PTEs 64-bit in size.
1725 If unsure, say 'N' here.
1726
1727 if CPU_LOONGSON2F
1728 config CPU_NOP_WORKAROUNDS
1729 bool
1730
1731 config CPU_JUMP_WORKAROUNDS
1732 bool
1733
1734 config CPU_LOONGSON2F_WORKAROUNDS
1735 bool "Loongson 2F Workarounds"
1736 default y
1737 select CPU_NOP_WORKAROUNDS
1738 select CPU_JUMP_WORKAROUNDS
1739 help
1740 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1741 require workarounds. Without workarounds the system may hang
1742 unexpectedly. For more information please refer to the gas
1743 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1744
1745 Loongson 2F03 and later have fixed these issues and no workarounds
1746 are needed. The workarounds have no significant side effect on them
1747 but may decrease the performance of the system so this option should
1748 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1749 systems.
1750
1751 If unsure, please say Y.
1752 endif # CPU_LOONGSON2F
1753
1754 config SYS_SUPPORTS_ZBOOT
1755 bool
1756 select HAVE_KERNEL_GZIP
1757 select HAVE_KERNEL_BZIP2
1758 select HAVE_KERNEL_LZ4
1759 select HAVE_KERNEL_LZMA
1760 select HAVE_KERNEL_LZO
1761 select HAVE_KERNEL_XZ
1762
1763 config SYS_SUPPORTS_ZBOOT_UART16550
1764 bool
1765 select SYS_SUPPORTS_ZBOOT
1766
1767 config SYS_SUPPORTS_ZBOOT_UART_PROM
1768 bool
1769 select SYS_SUPPORTS_ZBOOT
1770
1771 config CPU_LOONGSON2
1772 bool
1773 select CPU_SUPPORTS_32BIT_KERNEL
1774 select CPU_SUPPORTS_64BIT_KERNEL
1775 select CPU_SUPPORTS_HIGHMEM
1776 select CPU_SUPPORTS_HUGEPAGES
1777
1778 config CPU_LOONGSON1
1779 bool
1780 select CPU_MIPS32
1781 select CPU_MIPSR2
1782 select CPU_HAS_PREFETCH
1783 select CPU_SUPPORTS_32BIT_KERNEL
1784 select CPU_SUPPORTS_HIGHMEM
1785 select CPU_SUPPORTS_CPUFREQ
1786
1787 config CPU_BMIPS32_3300
1788 select SMP_UP if SMP
1789 bool
1790
1791 config CPU_BMIPS4350
1792 bool
1793 select SYS_SUPPORTS_SMP
1794 select SYS_SUPPORTS_HOTPLUG_CPU
1795
1796 config CPU_BMIPS4380
1797 bool
1798 select MIPS_L1_CACHE_SHIFT_6
1799 select SYS_SUPPORTS_SMP
1800 select SYS_SUPPORTS_HOTPLUG_CPU
1801
1802 config CPU_BMIPS5000
1803 bool
1804 select MIPS_CPU_SCACHE
1805 select MIPS_L1_CACHE_SHIFT_7
1806 select SYS_SUPPORTS_SMP
1807 select SYS_SUPPORTS_HOTPLUG_CPU
1808
1809 config SYS_HAS_CPU_LOONGSON3
1810 bool
1811 select CPU_SUPPORTS_CPUFREQ
1812
1813 config SYS_HAS_CPU_LOONGSON2E
1814 bool
1815
1816 config SYS_HAS_CPU_LOONGSON2F
1817 bool
1818 select CPU_SUPPORTS_CPUFREQ
1819 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1820 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1821
1822 config SYS_HAS_CPU_LOONGSON1B
1823 bool
1824
1825 config SYS_HAS_CPU_MIPS32_R1
1826 bool
1827
1828 config SYS_HAS_CPU_MIPS32_R2
1829 bool
1830
1831 config SYS_HAS_CPU_MIPS32_R3_5
1832 bool
1833
1834 config SYS_HAS_CPU_MIPS32_R5
1835 bool
1836
1837 config SYS_HAS_CPU_MIPS32_R6
1838 bool
1839
1840 config SYS_HAS_CPU_MIPS64_R1
1841 bool
1842
1843 config SYS_HAS_CPU_MIPS64_R2
1844 bool
1845
1846 config SYS_HAS_CPU_MIPS64_R6
1847 bool
1848
1849 config SYS_HAS_CPU_R3000
1850 bool
1851
1852 config SYS_HAS_CPU_TX39XX
1853 bool
1854
1855 config SYS_HAS_CPU_VR41XX
1856 bool
1857
1858 config SYS_HAS_CPU_R4300
1859 bool
1860
1861 config SYS_HAS_CPU_R4X00
1862 bool
1863
1864 config SYS_HAS_CPU_TX49XX
1865 bool
1866
1867 config SYS_HAS_CPU_R5000
1868 bool
1869
1870 config SYS_HAS_CPU_R5432
1871 bool
1872
1873 config SYS_HAS_CPU_R5500
1874 bool
1875
1876 config SYS_HAS_CPU_R6000
1877 bool
1878
1879 config SYS_HAS_CPU_NEVADA
1880 bool
1881
1882 config SYS_HAS_CPU_R8000
1883 bool
1884
1885 config SYS_HAS_CPU_R10000
1886 bool
1887
1888 config SYS_HAS_CPU_RM7000
1889 bool
1890
1891 config SYS_HAS_CPU_SB1
1892 bool
1893
1894 config SYS_HAS_CPU_CAVIUM_OCTEON
1895 bool
1896
1897 config SYS_HAS_CPU_BMIPS
1898 bool
1899
1900 config SYS_HAS_CPU_BMIPS32_3300
1901 bool
1902 select SYS_HAS_CPU_BMIPS
1903
1904 config SYS_HAS_CPU_BMIPS4350
1905 bool
1906 select SYS_HAS_CPU_BMIPS
1907
1908 config SYS_HAS_CPU_BMIPS4380
1909 bool
1910 select SYS_HAS_CPU_BMIPS
1911
1912 config SYS_HAS_CPU_BMIPS5000
1913 bool
1914 select SYS_HAS_CPU_BMIPS
1915
1916 config SYS_HAS_CPU_XLR
1917 bool
1918
1919 config SYS_HAS_CPU_XLP
1920 bool
1921
1922 config MIPS_MALTA_PM
1923 depends on MIPS_MALTA
1924 depends on PCI
1925 bool
1926 default y
1927
1928 #
1929 # CPU may reorder R->R, R->W, W->R, W->W
1930 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1931 #
1932 config WEAK_ORDERING
1933 bool
1934
1935 #
1936 # CPU may reorder reads and writes beyond LL/SC
1937 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1938 #
1939 config WEAK_REORDERING_BEYOND_LLSC
1940 bool
1941 endmenu
1942
1943 #
1944 # These two indicate any level of the MIPS32 and MIPS64 architecture
1945 #
1946 config CPU_MIPS32
1947 bool
1948 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1949
1950 config CPU_MIPS64
1951 bool
1952 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1953
1954 #
1955 # These two indicate the revision of the architecture, either Release 1 or Release 2
1956 #
1957 config CPU_MIPSR1
1958 bool
1959 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1960
1961 config CPU_MIPSR2
1962 bool
1963 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1964 select MIPS_SPRAM
1965
1966 config CPU_MIPSR6
1967 bool
1968 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1969 select MIPS_SPRAM
1970
1971 config EVA
1972 bool
1973
1974 config XPA
1975 bool
1976
1977 config SYS_SUPPORTS_32BIT_KERNEL
1978 bool
1979 config SYS_SUPPORTS_64BIT_KERNEL
1980 bool
1981 config CPU_SUPPORTS_32BIT_KERNEL
1982 bool
1983 config CPU_SUPPORTS_64BIT_KERNEL
1984 bool
1985 config CPU_SUPPORTS_CPUFREQ
1986 bool
1987 config CPU_SUPPORTS_ADDRWINCFG
1988 bool
1989 config CPU_SUPPORTS_HUGEPAGES
1990 bool
1991 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1992 bool
1993 config MIPS_PGD_C0_CONTEXT
1994 bool
1995 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1996
1997 #
1998 # Set to y for ptrace access to watch registers.
1999 #
2000 config HARDWARE_WATCHPOINTS
2001 bool
2002 default y if CPU_MIPSR1 || CPU_MIPSR2
2003
2004 menu "Kernel type"
2005
2006 choice
2007 prompt "Kernel code model"
2008 help
2009 You should only select this option if you have a workload that
2010 actually benefits from 64-bit processing or if your machine has
2011 large memory. You will only be presented a single option in this
2012 menu if your system does not support both 32-bit and 64-bit kernels.
2013
2014 config 32BIT
2015 bool "32-bit kernel"
2016 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2017 select TRAD_SIGNALS
2018 help
2019 Select this option if you want to build a 32-bit kernel.
2020
2021 config 64BIT
2022 bool "64-bit kernel"
2023 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2024 help
2025 Select this option if you want to build a 64-bit kernel.
2026
2027 endchoice
2028
2029 config KVM_GUEST
2030 bool "KVM Guest Kernel"
2031 depends on BROKEN_ON_SMP
2032 help
2033 Select this option if building a guest kernel for KVM (Trap & Emulate)
2034 mode.
2035
2036 config KVM_GUEST_TIMER_FREQ
2037 int "Count/Compare Timer Frequency (MHz)"
2038 depends on KVM_GUEST
2039 default 100
2040 help
2041 Set this to non-zero if building a guest kernel for KVM to skip RTC
2042 emulation when determining guest CPU Frequency. Instead, the guest's
2043 timer frequency is specified directly.
2044
2045 choice
2046 prompt "Kernel page size"
2047 default PAGE_SIZE_4KB
2048
2049 config PAGE_SIZE_4KB
2050 bool "4kB"
2051 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2052 help
2053 This option select the standard 4kB Linux page size. On some
2054 R3000-family processors this is the only available page size. Using
2055 4kB page size will minimize memory consumption and is therefore
2056 recommended for low memory systems.
2057
2058 config PAGE_SIZE_8KB
2059 bool "8kB"
2060 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2061 help
2062 Using 8kB page size will result in higher performance kernel at
2063 the price of higher memory consumption. This option is available
2064 only on R8000 and cnMIPS processors. Note that you will need a
2065 suitable Linux distribution to support this.
2066
2067 config PAGE_SIZE_16KB
2068 bool "16kB"
2069 depends on !CPU_R3000 && !CPU_TX39XX
2070 help
2071 Using 16kB page size will result in higher performance kernel at
2072 the price of higher memory consumption. This option is available on
2073 all non-R3000 family processors. Note that you will need a suitable
2074 Linux distribution to support this.
2075
2076 config PAGE_SIZE_32KB
2077 bool "32kB"
2078 depends on CPU_CAVIUM_OCTEON
2079 help
2080 Using 32kB page size will result in higher performance kernel at
2081 the price of higher memory consumption. This option is available
2082 only on cnMIPS cores. Note that you will need a suitable Linux
2083 distribution to support this.
2084
2085 config PAGE_SIZE_64KB
2086 bool "64kB"
2087 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2088 help
2089 Using 64kB page size will result in higher performance kernel at
2090 the price of higher memory consumption. This option is available on
2091 all non-R3000 family processor. Not that at the time of this
2092 writing this option is still high experimental.
2093
2094 endchoice
2095
2096 config FORCE_MAX_ZONEORDER
2097 int "Maximum zone order"
2098 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2099 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2100 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2101 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2102 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2103 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2104 range 11 64
2105 default "11"
2106 help
2107 The kernel memory allocator divides physically contiguous memory
2108 blocks into "zones", where each zone is a power of two number of
2109 pages. This option selects the largest power of two that the kernel
2110 keeps in the memory allocator. If you need to allocate very large
2111 blocks of physically contiguous memory, then you may need to
2112 increase this value.
2113
2114 This config option is actually maximum order plus one. For example,
2115 a value of 11 means that the largest free memory block is 2^10 pages.
2116
2117 The page size is not necessarily 4KB. Keep this in mind
2118 when choosing a value for this option.
2119
2120 config BOARD_SCACHE
2121 bool
2122
2123 config IP22_CPU_SCACHE
2124 bool
2125 select BOARD_SCACHE
2126
2127 #
2128 # Support for a MIPS32 / MIPS64 style S-caches
2129 #
2130 config MIPS_CPU_SCACHE
2131 bool
2132 select BOARD_SCACHE
2133
2134 config R5000_CPU_SCACHE
2135 bool
2136 select BOARD_SCACHE
2137
2138 config RM7000_CPU_SCACHE
2139 bool
2140 select BOARD_SCACHE
2141
2142 config SIBYTE_DMA_PAGEOPS
2143 bool "Use DMA to clear/copy pages"
2144 depends on CPU_SB1
2145 help
2146 Instead of using the CPU to zero and copy pages, use a Data Mover
2147 channel. These DMA channels are otherwise unused by the standard
2148 SiByte Linux port. Seems to give a small performance benefit.
2149
2150 config CPU_HAS_PREFETCH
2151 bool
2152
2153 config CPU_GENERIC_DUMP_TLB
2154 bool
2155 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2156
2157 config CPU_R4K_FPU
2158 bool
2159 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2160
2161 config CPU_R4K_CACHE_TLB
2162 bool
2163 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2164
2165 config MIPS_MT_SMP
2166 bool "MIPS MT SMP support (1 TC on each available VPE)"
2167 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2168 select CPU_MIPSR2_IRQ_VI
2169 select CPU_MIPSR2_IRQ_EI
2170 select SYNC_R4K
2171 select MIPS_MT
2172 select SMP
2173 select SMP_UP
2174 select SYS_SUPPORTS_SMP
2175 select SYS_SUPPORTS_SCHED_SMT
2176 select MIPS_PERF_SHARED_TC_COUNTERS
2177 help
2178 This is a kernel model which is known as SMVP. This is supported
2179 on cores with the MT ASE and uses the available VPEs to implement
2180 virtual processors which supports SMP. This is equivalent to the
2181 Intel Hyperthreading feature. For further information go to
2182 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2183
2184 config MIPS_MT
2185 bool
2186
2187 config SCHED_SMT
2188 bool "SMT (multithreading) scheduler support"
2189 depends on SYS_SUPPORTS_SCHED_SMT
2190 default n
2191 help
2192 SMT scheduler support improves the CPU scheduler's decision making
2193 when dealing with MIPS MT enabled cores at a cost of slightly
2194 increased overhead in some places. If unsure say N here.
2195
2196 config SYS_SUPPORTS_SCHED_SMT
2197 bool
2198
2199 config SYS_SUPPORTS_MULTITHREADING
2200 bool
2201
2202 config MIPS_MT_FPAFF
2203 bool "Dynamic FPU affinity for FP-intensive threads"
2204 default y
2205 depends on MIPS_MT_SMP
2206
2207 config MIPSR2_TO_R6_EMULATOR
2208 bool "MIPS R2-to-R6 emulator"
2209 depends on CPU_MIPSR6 && !SMP
2210 default y
2211 help
2212 Choose this option if you want to run non-R6 MIPS userland code.
2213 Even if you say 'Y' here, the emulator will still be disabled by
2214 default. You can enable it using the 'mipsr2emu' kernel option.
2215 The only reason this is a build-time option is to save ~14K from the
2216 final kernel image.
2217 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2218 depends on SMP && CPU_MIPSR6
2219
2220 config MIPS_VPE_LOADER
2221 bool "VPE loader support."
2222 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2223 select CPU_MIPSR2_IRQ_VI
2224 select CPU_MIPSR2_IRQ_EI
2225 select MIPS_MT
2226 help
2227 Includes a loader for loading an elf relocatable object
2228 onto another VPE and running it.
2229
2230 config MIPS_VPE_LOADER_CMP
2231 bool
2232 default "y"
2233 depends on MIPS_VPE_LOADER && MIPS_CMP
2234
2235 config MIPS_VPE_LOADER_MT
2236 bool
2237 default "y"
2238 depends on MIPS_VPE_LOADER && !MIPS_CMP
2239
2240 config MIPS_VPE_LOADER_TOM
2241 bool "Load VPE program into memory hidden from linux"
2242 depends on MIPS_VPE_LOADER
2243 default y
2244 help
2245 The loader can use memory that is present but has been hidden from
2246 Linux using the kernel command line option "mem=xxMB". It's up to
2247 you to ensure the amount you put in the option and the space your
2248 program requires is less or equal to the amount physically present.
2249
2250 config MIPS_VPE_APSP_API
2251 bool "Enable support for AP/SP API (RTLX)"
2252 depends on MIPS_VPE_LOADER
2253 help
2254
2255 config MIPS_VPE_APSP_API_CMP
2256 bool
2257 default "y"
2258 depends on MIPS_VPE_APSP_API && MIPS_CMP
2259
2260 config MIPS_VPE_APSP_API_MT
2261 bool
2262 default "y"
2263 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2264
2265 config MIPS_CMP
2266 bool "MIPS CMP framework support (DEPRECATED)"
2267 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2268 select SMP
2269 select SYNC_R4K
2270 select SYS_SUPPORTS_SMP
2271 select WEAK_ORDERING
2272 default n
2273 help
2274 Select this if you are using a bootloader which implements the "CMP
2275 framework" protocol (ie. YAMON) and want your kernel to make use of
2276 its ability to start secondary CPUs.
2277
2278 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2279 instead of this.
2280
2281 config MIPS_CPS
2282 bool "MIPS Coherent Processing System support"
2283 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2284 select MIPS_CM
2285 select MIPS_CPC
2286 select MIPS_CPS_PM if HOTPLUG_CPU
2287 select SMP
2288 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2289 select SYS_SUPPORTS_HOTPLUG_CPU
2290 select SYS_SUPPORTS_SMP
2291 select WEAK_ORDERING
2292 help
2293 Select this if you wish to run an SMP kernel across multiple cores
2294 within a MIPS Coherent Processing System. When this option is
2295 enabled the kernel will probe for other cores and boot them with
2296 no external assistance. It is safe to enable this when hardware
2297 support is unavailable.
2298
2299 config MIPS_CPS_PM
2300 depends on MIPS_CPS
2301 select MIPS_CPC
2302 bool
2303
2304 config MIPS_CM
2305 bool
2306
2307 config MIPS_CPC
2308 bool
2309
2310 config SB1_PASS_2_WORKAROUNDS
2311 bool
2312 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2313 default y
2314
2315 config SB1_PASS_2_1_WORKAROUNDS
2316 bool
2317 depends on CPU_SB1 && CPU_SB1_PASS_2
2318 default y
2319
2320
2321 config ARCH_PHYS_ADDR_T_64BIT
2322 bool
2323
2324 choice
2325 prompt "SmartMIPS or microMIPS ASE support"
2326
2327 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2328 bool "None"
2329 help
2330 Select this if you want neither microMIPS nor SmartMIPS support
2331
2332 config CPU_HAS_SMARTMIPS
2333 depends on SYS_SUPPORTS_SMARTMIPS
2334 bool "SmartMIPS"
2335 help
2336 SmartMIPS is a extension of the MIPS32 architecture aimed at
2337 increased security at both hardware and software level for
2338 smartcards. Enabling this option will allow proper use of the
2339 SmartMIPS instructions by Linux applications. However a kernel with
2340 this option will not work on a MIPS core without SmartMIPS core. If
2341 you don't know you probably don't have SmartMIPS and should say N
2342 here.
2343
2344 config CPU_MICROMIPS
2345 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2346 bool "microMIPS"
2347 help
2348 When this option is enabled the kernel will be built using the
2349 microMIPS ISA
2350
2351 endchoice
2352
2353 config CPU_HAS_MSA
2354 bool "Support for the MIPS SIMD Architecture"
2355 depends on CPU_SUPPORTS_MSA
2356 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2357 help
2358 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2359 and a set of SIMD instructions to operate on them. When this option
2360 is enabled the kernel will support allocating & switching MSA
2361 vector register contexts. If you know that your kernel will only be
2362 running on CPUs which do not support MSA or that your userland will
2363 not be making use of it then you may wish to say N here to reduce
2364 the size & complexity of your kernel.
2365
2366 If unsure, say Y.
2367
2368 config CPU_HAS_WB
2369 bool
2370
2371 config XKS01
2372 bool
2373
2374 #
2375 # Vectored interrupt mode is an R2 feature
2376 #
2377 config CPU_MIPSR2_IRQ_VI
2378 bool
2379
2380 #
2381 # Extended interrupt mode is an R2 feature
2382 #
2383 config CPU_MIPSR2_IRQ_EI
2384 bool
2385
2386 config CPU_HAS_SYNC
2387 bool
2388 depends on !CPU_R3000
2389 default y
2390
2391 #
2392 # CPU non-features
2393 #
2394 config CPU_DADDI_WORKAROUNDS
2395 bool
2396
2397 config CPU_R4000_WORKAROUNDS
2398 bool
2399 select CPU_R4400_WORKAROUNDS
2400
2401 config CPU_R4400_WORKAROUNDS
2402 bool
2403
2404 #
2405 # - Highmem only makes sense for the 32-bit kernel.
2406 # - The current highmem code will only work properly on physically indexed
2407 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2408 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2409 # moment we protect the user and offer the highmem option only on machines
2410 # where it's known to be safe. This will not offer highmem on a few systems
2411 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2412 # indexed CPUs but we're playing safe.
2413 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2414 # know they might have memory configurations that could make use of highmem
2415 # support.
2416 #
2417 config HIGHMEM
2418 bool "High Memory Support"
2419 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2420
2421 config CPU_SUPPORTS_HIGHMEM
2422 bool
2423
2424 config SYS_SUPPORTS_HIGHMEM
2425 bool
2426
2427 config SYS_SUPPORTS_SMARTMIPS
2428 bool
2429
2430 config SYS_SUPPORTS_MICROMIPS
2431 bool
2432
2433 config SYS_SUPPORTS_MIPS16
2434 bool
2435 help
2436 This option must be set if a kernel might be executed on a MIPS16-
2437 enabled CPU even if MIPS16 is not actually being used. In other
2438 words, it makes the kernel MIPS16-tolerant.
2439
2440 config CPU_SUPPORTS_MSA
2441 bool
2442
2443 config ARCH_FLATMEM_ENABLE
2444 def_bool y
2445 depends on !NUMA && !CPU_LOONGSON2
2446
2447 config ARCH_DISCONTIGMEM_ENABLE
2448 bool
2449 default y if SGI_IP27
2450 help
2451 Say Y to support efficient handling of discontiguous physical memory,
2452 for architectures which are either NUMA (Non-Uniform Memory Access)
2453 or have huge holes in the physical address space for other reasons.
2454 See <file:Documentation/vm/numa> for more.
2455
2456 config ARCH_SPARSEMEM_ENABLE
2457 bool
2458 select SPARSEMEM_STATIC
2459
2460 config NUMA
2461 bool "NUMA Support"
2462 depends on SYS_SUPPORTS_NUMA
2463 help
2464 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2465 Access). This option improves performance on systems with more
2466 than two nodes; on two node systems it is generally better to
2467 leave it disabled; on single node systems disable this option
2468 disabled.
2469
2470 config SYS_SUPPORTS_NUMA
2471 bool
2472
2473 config NODES_SHIFT
2474 int
2475 default "6"
2476 depends on NEED_MULTIPLE_NODES
2477
2478 config HW_PERF_EVENTS
2479 bool "Enable hardware performance counter support for perf events"
2480 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2481 default y
2482 help
2483 Enable hardware performance counter support for perf events. If
2484 disabled, perf events will use software events only.
2485
2486 source "mm/Kconfig"
2487
2488 config SMP
2489 bool "Multi-Processing support"
2490 depends on SYS_SUPPORTS_SMP
2491 help
2492 This enables support for systems with more than one CPU. If you have
2493 a system with only one CPU, say N. If you have a system with more
2494 than one CPU, say Y.
2495
2496 If you say N here, the kernel will run on uni- and multiprocessor
2497 machines, but will use only one CPU of a multiprocessor machine. If
2498 you say Y here, the kernel will run on many, but not all,
2499 uniprocessor machines. On a uniprocessor machine, the kernel
2500 will run faster if you say N here.
2501
2502 People using multiprocessor machines who say Y here should also say
2503 Y to "Enhanced Real Time Clock Support", below.
2504
2505 See also the SMP-HOWTO available at
2506 <http://www.tldp.org/docs.html#howto>.
2507
2508 If you don't know what to do here, say N.
2509
2510 config SMP_UP
2511 bool
2512
2513 config SYS_SUPPORTS_MIPS_CMP
2514 bool
2515
2516 config SYS_SUPPORTS_MIPS_CPS
2517 bool
2518
2519 config SYS_SUPPORTS_SMP
2520 bool
2521
2522 config NR_CPUS_DEFAULT_4
2523 bool
2524
2525 config NR_CPUS_DEFAULT_8
2526 bool
2527
2528 config NR_CPUS_DEFAULT_16
2529 bool
2530
2531 config NR_CPUS_DEFAULT_32
2532 bool
2533
2534 config NR_CPUS_DEFAULT_64
2535 bool
2536
2537 config NR_CPUS
2538 int "Maximum number of CPUs (2-256)"
2539 range 2 256
2540 depends on SMP
2541 default "4" if NR_CPUS_DEFAULT_4
2542 default "8" if NR_CPUS_DEFAULT_8
2543 default "16" if NR_CPUS_DEFAULT_16
2544 default "32" if NR_CPUS_DEFAULT_32
2545 default "64" if NR_CPUS_DEFAULT_64
2546 help
2547 This allows you to specify the maximum number of CPUs which this
2548 kernel will support. The maximum supported value is 32 for 32-bit
2549 kernel and 64 for 64-bit kernels; the minimum value which makes
2550 sense is 1 for Qemu (useful only for kernel debugging purposes)
2551 and 2 for all others.
2552
2553 This is purely to save memory - each supported CPU adds
2554 approximately eight kilobytes to the kernel image. For best
2555 performance should round up your number of processors to the next
2556 power of two.
2557
2558 config MIPS_PERF_SHARED_TC_COUNTERS
2559 bool
2560
2561 #
2562 # Timer Interrupt Frequency Configuration
2563 #
2564
2565 choice
2566 prompt "Timer frequency"
2567 default HZ_250
2568 help
2569 Allows the configuration of the timer frequency.
2570
2571 config HZ_24
2572 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2573
2574 config HZ_48
2575 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2576
2577 config HZ_100
2578 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2579
2580 config HZ_128
2581 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2582
2583 config HZ_250
2584 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2585
2586 config HZ_256
2587 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2588
2589 config HZ_1000
2590 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2591
2592 config HZ_1024
2593 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2594
2595 endchoice
2596
2597 config SYS_SUPPORTS_24HZ
2598 bool
2599
2600 config SYS_SUPPORTS_48HZ
2601 bool
2602
2603 config SYS_SUPPORTS_100HZ
2604 bool
2605
2606 config SYS_SUPPORTS_128HZ
2607 bool
2608
2609 config SYS_SUPPORTS_250HZ
2610 bool
2611
2612 config SYS_SUPPORTS_256HZ
2613 bool
2614
2615 config SYS_SUPPORTS_1000HZ
2616 bool
2617
2618 config SYS_SUPPORTS_1024HZ
2619 bool
2620
2621 config SYS_SUPPORTS_ARBIT_HZ
2622 bool
2623 default y if !SYS_SUPPORTS_24HZ && \
2624 !SYS_SUPPORTS_48HZ && \
2625 !SYS_SUPPORTS_100HZ && \
2626 !SYS_SUPPORTS_128HZ && \
2627 !SYS_SUPPORTS_250HZ && \
2628 !SYS_SUPPORTS_256HZ && \
2629 !SYS_SUPPORTS_1000HZ && \
2630 !SYS_SUPPORTS_1024HZ
2631
2632 config HZ
2633 int
2634 default 24 if HZ_24
2635 default 48 if HZ_48
2636 default 100 if HZ_100
2637 default 128 if HZ_128
2638 default 250 if HZ_250
2639 default 256 if HZ_256
2640 default 1000 if HZ_1000
2641 default 1024 if HZ_1024
2642
2643 config SCHED_HRTICK
2644 def_bool HIGH_RES_TIMERS
2645
2646 source "kernel/Kconfig.preempt"
2647
2648 config KEXEC
2649 bool "Kexec system call"
2650 select KEXEC_CORE
2651 help
2652 kexec is a system call that implements the ability to shutdown your
2653 current kernel, and to start another kernel. It is like a reboot
2654 but it is independent of the system firmware. And like a reboot
2655 you can start any kernel with it, not just Linux.
2656
2657 The name comes from the similarity to the exec system call.
2658
2659 It is an ongoing process to be certain the hardware in a machine
2660 is properly shutdown, so do not be surprised if this code does not
2661 initially work for you. As of this writing the exact hardware
2662 interface is strongly in flux, so no good recommendation can be
2663 made.
2664
2665 config CRASH_DUMP
2666 bool "Kernel crash dumps"
2667 help
2668 Generate crash dump after being started by kexec.
2669 This should be normally only set in special crash dump kernels
2670 which are loaded in the main kernel with kexec-tools into
2671 a specially reserved region and then later executed after
2672 a crash by kdump/kexec. The crash dump kernel must be compiled
2673 to a memory address not used by the main kernel or firmware using
2674 PHYSICAL_START.
2675
2676 config PHYSICAL_START
2677 hex "Physical address where the kernel is loaded"
2678 default "0xffffffff84000000" if 64BIT
2679 default "0x84000000" if 32BIT
2680 depends on CRASH_DUMP
2681 help
2682 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2683 If you plan to use kernel for capturing the crash dump change
2684 this value to start of the reserved region (the "X" value as
2685 specified in the "crashkernel=YM@XM" command line boot parameter
2686 passed to the panic-ed kernel).
2687
2688 config SECCOMP
2689 bool "Enable seccomp to safely compute untrusted bytecode"
2690 depends on PROC_FS
2691 default y
2692 help
2693 This kernel feature is useful for number crunching applications
2694 that may need to compute untrusted bytecode during their
2695 execution. By using pipes or other transports made available to
2696 the process as file descriptors supporting the read/write
2697 syscalls, it's possible to isolate those applications in
2698 their own address space using seccomp. Once seccomp is
2699 enabled via /proc/<pid>/seccomp, it cannot be disabled
2700 and the task is only allowed to execute a few safe syscalls
2701 defined by each seccomp mode.
2702
2703 If unsure, say Y. Only embedded should say N here.
2704
2705 config MIPS_O32_FP64_SUPPORT
2706 bool "Support for O32 binaries using 64-bit FP"
2707 depends on 32BIT || MIPS32_O32
2708 help
2709 When this is enabled, the kernel will support use of 64-bit floating
2710 point registers with binaries using the O32 ABI along with the
2711 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2712 32-bit MIPS systems this support is at the cost of increasing the
2713 size and complexity of the compiled FPU emulator. Thus if you are
2714 running a MIPS32 system and know that none of your userland binaries
2715 will require 64-bit floating point, you may wish to reduce the size
2716 of your kernel & potentially improve FP emulation performance by
2717 saying N here.
2718
2719 Although binutils currently supports use of this flag the details
2720 concerning its effect upon the O32 ABI in userland are still being
2721 worked on. In order to avoid userland becoming dependant upon current
2722 behaviour before the details have been finalised, this option should
2723 be considered experimental and only enabled by those working upon
2724 said details.
2725
2726 If unsure, say N.
2727
2728 config USE_OF
2729 bool
2730 select OF
2731 select OF_EARLY_FLATTREE
2732 select IRQ_DOMAIN
2733
2734 config BUILTIN_DTB
2735 bool
2736
2737 choice
2738 prompt "Kernel appended dtb support" if USE_OF
2739 default MIPS_NO_APPENDED_DTB
2740
2741 config MIPS_NO_APPENDED_DTB
2742 bool "None"
2743 help
2744 Do not enable appended dtb support.
2745
2746 config MIPS_ELF_APPENDED_DTB
2747 bool "vmlinux"
2748 help
2749 With this option, the boot code will look for a device tree binary
2750 DTB) included in the vmlinux ELF section .appended_dtb. By default
2751 it is empty and the DTB can be appended using binutils command
2752 objcopy:
2753
2754 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2755
2756 This is meant as a backward compatiblity convenience for those
2757 systems with a bootloader that can't be upgraded to accommodate
2758 the documented boot protocol using a device tree.
2759
2760 config MIPS_RAW_APPENDED_DTB
2761 bool "vmlinux.bin"
2762 help
2763 With this option, the boot code will look for a device tree binary
2764 DTB) appended to raw vmlinux.bin (without decompressor).
2765 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2766
2767 This is meant as a backward compatibility convenience for those
2768 systems with a bootloader that can't be upgraded to accommodate
2769 the documented boot protocol using a device tree.
2770
2771 Beware that there is very little in terms of protection against
2772 this option being confused by leftover garbage in memory that might
2773 look like a DTB header after a reboot if no actual DTB is appended
2774 to vmlinux.bin. Do not leave this option active in a production kernel
2775 if you don't intend to always append a DTB.
2776
2777 config MIPS_ZBOOT_APPENDED_DTB
2778 bool "vmlinuz.bin"
2779 depends on SYS_SUPPORTS_ZBOOT
2780 help
2781 With this option, the boot code will look for a device tree binary
2782 DTB) appended to raw vmlinuz.bin (with decompressor).
2783 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2784
2785 This is meant as a backward compatibility convenience for those
2786 systems with a bootloader that can't be upgraded to accommodate
2787 the documented boot protocol using a device tree.
2788
2789 Beware that there is very little in terms of protection against
2790 this option being confused by leftover garbage in memory that might
2791 look like a DTB header after a reboot if no actual DTB is appended
2792 to vmlinuz.bin. Do not leave this option active in a production kernel
2793 if you don't intend to always append a DTB.
2794 endchoice
2795
2796 choice
2797 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2798 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2799 !MIPS_MALTA && !MIPS_SEAD3 && \
2800 !CAVIUM_OCTEON_SOC
2801 default MIPS_CMDLINE_FROM_BOOTLOADER
2802
2803 config MIPS_CMDLINE_FROM_DTB
2804 depends on USE_OF
2805 bool "Dtb kernel arguments if available"
2806
2807 config MIPS_CMDLINE_DTB_EXTEND
2808 depends on USE_OF
2809 bool "Extend dtb kernel arguments with bootloader arguments"
2810
2811 config MIPS_CMDLINE_FROM_BOOTLOADER
2812 bool "Bootloader kernel arguments if available"
2813 endchoice
2814
2815 endmenu
2816
2817 config LOCKDEP_SUPPORT
2818 bool
2819 default y
2820
2821 config STACKTRACE_SUPPORT
2822 bool
2823 default y
2824
2825 config HAVE_LATENCYTOP_SUPPORT
2826 bool
2827 default y
2828
2829 config PGTABLE_LEVELS
2830 int
2831 default 3 if 64BIT && !PAGE_SIZE_64KB
2832 default 2
2833
2834 source "init/Kconfig"
2835
2836 source "kernel/Kconfig.freezer"
2837
2838 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2839
2840 config HW_HAS_EISA
2841 bool
2842 config HW_HAS_PCI
2843 bool
2844
2845 config PCI
2846 bool "Support for PCI controller"
2847 depends on HW_HAS_PCI
2848 select PCI_DOMAINS
2849 select NO_GENERIC_PCI_IOPORT_MAP
2850 help
2851 Find out whether you have a PCI motherboard. PCI is the name of a
2852 bus system, i.e. the way the CPU talks to the other stuff inside
2853 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2854 say Y, otherwise N.
2855
2856 config HT_PCI
2857 bool "Support for HT-linked PCI"
2858 default y
2859 depends on CPU_LOONGSON3
2860 select PCI
2861 select PCI_DOMAINS
2862 help
2863 Loongson family machines use Hyper-Transport bus for inter-core
2864 connection and device connection. The PCI bus is a subordinate
2865 linked at HT. Choose Y for Loongson-3 based machines.
2866
2867 config PCI_DOMAINS
2868 bool
2869
2870 source "drivers/pci/Kconfig"
2871
2872 #
2873 # ISA support is now enabled via select. Too many systems still have the one
2874 # or other ISA chip on the board that users don't know about so don't expect
2875 # users to choose the right thing ...
2876 #
2877 config ISA
2878 bool
2879
2880 config EISA
2881 bool "EISA support"
2882 depends on HW_HAS_EISA
2883 select ISA
2884 select GENERIC_ISA_DMA
2885 ---help---
2886 The Extended Industry Standard Architecture (EISA) bus was
2887 developed as an open alternative to the IBM MicroChannel bus.
2888
2889 The EISA bus provided some of the features of the IBM MicroChannel
2890 bus while maintaining backward compatibility with cards made for
2891 the older ISA bus. The EISA bus saw limited use between 1988 and
2892 1995 when it was made obsolete by the PCI bus.
2893
2894 Say Y here if you are building a kernel for an EISA-based machine.
2895
2896 Otherwise, say N.
2897
2898 source "drivers/eisa/Kconfig"
2899
2900 config TC
2901 bool "TURBOchannel support"
2902 depends on MACH_DECSTATION
2903 help
2904 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2905 processors. TURBOchannel programming specifications are available
2906 at:
2907 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2908 and:
2909 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2910 Linux driver support status is documented at:
2911 <http://www.linux-mips.org/wiki/DECstation>
2912
2913 config MMU
2914 bool
2915 default y
2916
2917 config I8253
2918 bool
2919 select CLKSRC_I8253
2920 select CLKEVT_I8253
2921 select MIPS_EXTERNAL_TIMER
2922
2923 config ZONE_DMA
2924 bool
2925
2926 config ZONE_DMA32
2927 bool
2928
2929 source "drivers/pcmcia/Kconfig"
2930
2931 config RAPIDIO
2932 tristate "RapidIO support"
2933 depends on PCI
2934 default n
2935 help
2936 If you say Y here, the kernel will include drivers and
2937 infrastructure code to support RapidIO interconnect devices.
2938
2939 source "drivers/rapidio/Kconfig"
2940
2941 endmenu
2942
2943 menu "Executable file formats"
2944
2945 source "fs/Kconfig.binfmt"
2946
2947 config TRAD_SIGNALS
2948 bool
2949
2950 config MIPS32_COMPAT
2951 bool
2952
2953 config COMPAT
2954 bool
2955
2956 config SYSVIPC_COMPAT
2957 bool
2958
2959 config MIPS32_O32
2960 bool "Kernel support for o32 binaries"
2961 depends on 64BIT
2962 select ARCH_WANT_OLD_COMPAT_IPC
2963 select COMPAT
2964 select MIPS32_COMPAT
2965 select SYSVIPC_COMPAT if SYSVIPC
2966 help
2967 Select this option if you want to run o32 binaries. These are pure
2968 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2969 existing binaries are in this format.
2970
2971 If unsure, say Y.
2972
2973 config MIPS32_N32
2974 bool "Kernel support for n32 binaries"
2975 depends on 64BIT
2976 select COMPAT
2977 select MIPS32_COMPAT
2978 select SYSVIPC_COMPAT if SYSVIPC
2979 help
2980 Select this option if you want to run n32 binaries. These are
2981 64-bit binaries using 32-bit quantities for addressing and certain
2982 data that would normally be 64-bit. They are used in special
2983 cases.
2984
2985 If unsure, say N.
2986
2987 config BINFMT_ELF32
2988 bool
2989 default y if MIPS32_O32 || MIPS32_N32
2990
2991 endmenu
2992
2993 menu "Power management options"
2994
2995 config ARCH_HIBERNATION_POSSIBLE
2996 def_bool y
2997 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2998
2999 config ARCH_SUSPEND_POSSIBLE
3000 def_bool y
3001 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3002
3003 source "kernel/power/Kconfig"
3004
3005 endmenu
3006
3007 config MIPS_EXTERNAL_TIMER
3008 bool
3009
3010 menu "CPU Power Management"
3011
3012 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3013 source "drivers/cpufreq/Kconfig"
3014 endif
3015
3016 source "drivers/cpuidle/Kconfig"
3017
3018 endmenu
3019
3020 source "net/Kconfig"
3021
3022 source "drivers/Kconfig"
3023
3024 source "drivers/firmware/Kconfig"
3025
3026 source "fs/Kconfig"
3027
3028 source "arch/mips/Kconfig.debug"
3029
3030 source "security/Kconfig"
3031
3032 source "crypto/Kconfig"
3033
3034 source "lib/Kconfig"
3035
3036 source "arch/mips/kvm/Kconfig"
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