Merge tag 'hsi-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
[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_CBPF_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 select HANDLE_DOMAIN_IRQ
66
67 menu "Machine selection"
68
69 choice
70 prompt "System type"
71 default SGI_IP22
72
73 config MIPS_ALCHEMY
74 bool "Alchemy processor based machines"
75 select ARCH_PHYS_ADDR_T_64BIT
76 select CEVT_R4K
77 select CSRC_R4K
78 select IRQ_MIPS_CPU
79 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_APM_EMULATION
83 select GPIOLIB
84 select SYS_SUPPORTS_ZBOOT
85 select COMMON_CLK
86
87 config AR7
88 bool "Texas Instruments AR7"
89 select BOOT_ELF32
90 select DMA_NONCOHERENT
91 select CEVT_R4K
92 select CSRC_R4K
93 select IRQ_MIPS_CPU
94 select NO_EXCEPT_FILL
95 select SWAP_IO_SPACE
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_HAS_EARLY_PRINTK
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_MIPS16
101 select SYS_SUPPORTS_ZBOOT_UART16550
102 select GPIOLIB
103 select VLYNQ
104 select HAVE_CLK
105 help
106 Support for the Texas Instruments AR7 System-on-a-Chip
107 family: TNETD7100, 7200 and 7300.
108
109 config ATH25
110 bool "Atheros AR231x/AR531x SoC support"
111 select CEVT_R4K
112 select CSRC_R4K
113 select DMA_NONCOHERENT
114 select IRQ_MIPS_CPU
115 select IRQ_DOMAIN
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_BIG_ENDIAN
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_HAS_EARLY_PRINTK
120 help
121 Support for Atheros AR231x and Atheros AR531x based boards
122
123 config ATH79
124 bool "Atheros AR71XX/AR724X/AR913X based boards"
125 select ARCH_HAS_RESET_CONTROLLER
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select GPIOLIB
131 select HAVE_CLK
132 select COMMON_CLK
133 select CLKDEV_LOOKUP
134 select IRQ_MIPS_CPU
135 select MIPS_MACHINE
136 select SYS_HAS_CPU_MIPS32_R2
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_BIG_ENDIAN
140 select SYS_SUPPORTS_MIPS16
141 select SYS_SUPPORTS_ZBOOT_UART_PROM
142 select USE_OF
143 help
144 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
145
146 config BMIPS_GENERIC
147 bool "Broadcom Generic BMIPS kernel"
148 select BOOT_RAW
149 select NO_EXCEPT_FILL
150 select USE_OF
151 select CEVT_R4K
152 select CSRC_R4K
153 select SYNC_R4K
154 select COMMON_CLK
155 select BCM6345_L1_IRQ
156 select BCM7038_L1_IRQ
157 select BCM7120_L2_IRQ
158 select BRCMSTB_L2_IRQ
159 select IRQ_MIPS_CPU
160 select DMA_NONCOHERENT
161 select SYS_SUPPORTS_32BIT_KERNEL
162 select SYS_SUPPORTS_LITTLE_ENDIAN
163 select SYS_SUPPORTS_BIG_ENDIAN
164 select SYS_SUPPORTS_HIGHMEM
165 select SYS_HAS_CPU_BMIPS32_3300
166 select SYS_HAS_CPU_BMIPS4350
167 select SYS_HAS_CPU_BMIPS4380
168 select SYS_HAS_CPU_BMIPS5000
169 select SWAP_IO_SPACE
170 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
171 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
173 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
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 BOOT_RAW
183 select CEVT_R4K
184 select CSRC_R4K
185 select DMA_NONCOHERENT
186 select HW_HAS_PCI
187 select IRQ_MIPS_CPU
188 select SYS_HAS_CPU_MIPS32_R1
189 select NO_EXCEPT_FILL
190 select SYS_SUPPORTS_32BIT_KERNEL
191 select SYS_SUPPORTS_LITTLE_ENDIAN
192 select SYS_SUPPORTS_MIPS16
193 select SYS_HAS_EARLY_PRINTK
194 select USE_GENERIC_EARLY_PRINTK_8250
195 select GPIOLIB
196 select LEDS_GPIO_REGISTER
197 select BCM47XX_NVRAM
198 select BCM47XX_SPROM
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 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 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 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 BOOT_ELF32
381 select BOOT_RAW
382 select CEVT_R4K
383 select CLKSRC_MIPS_GIC
384 select COMMON_CLK
385 select CSRC_R4K
386 select DMA_MAYBE_COHERENT
387 select GPIOLIB
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 BOOT_ELF32
410 select BOOT_RAW
411 select BUILTIN_DTB
412 select CEVT_R4K
413 select COMMON_CLK
414 select CSRC_R4K
415 select GPIOLIB
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 SYS_SUPPORTS_RELOCATABLE
477 select USE_OF
478 select ZONE_DMA32 if 64BIT
479 select BUILTIN_DTB
480 select LIBFDT
481 help
482 This enables support for the MIPS Technologies Malta evaluation
483 board.
484
485 config MACH_PIC32
486 bool "Microchip PIC32 Family"
487 help
488 This enables support for the Microchip PIC32 family of platforms.
489
490 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
491 microcontrollers.
492
493 config MIPS_SEAD3
494 bool "MIPS SEAD3 board"
495 select BOOT_ELF32
496 select BOOT_RAW
497 select BUILTIN_DTB
498 select CEVT_R4K
499 select CSRC_R4K
500 select CLKSRC_MIPS_GIC
501 select COMMON_CLK
502 select CPU_MIPSR2_IRQ_VI
503 select CPU_MIPSR2_IRQ_EI
504 select DMA_NONCOHERENT
505 select IRQ_MIPS_CPU
506 select MIPS_GIC
507 select LIBFDT
508 select MIPS_MSC
509 select SYS_HAS_CPU_MIPS32_R1
510 select SYS_HAS_CPU_MIPS32_R2
511 select SYS_HAS_CPU_MIPS32_R6
512 select SYS_HAS_CPU_MIPS64_R1
513 select SYS_HAS_EARLY_PRINTK
514 select SYS_SUPPORTS_32BIT_KERNEL
515 select SYS_SUPPORTS_64BIT_KERNEL
516 select SYS_SUPPORTS_BIG_ENDIAN
517 select SYS_SUPPORTS_LITTLE_ENDIAN
518 select SYS_SUPPORTS_SMARTMIPS
519 select SYS_SUPPORTS_MICROMIPS
520 select SYS_SUPPORTS_MIPS16
521 select SYS_SUPPORTS_RELOCATABLE
522 select USB_EHCI_BIG_ENDIAN_DESC
523 select USB_EHCI_BIG_ENDIAN_MMIO
524 select USE_OF
525 help
526 This enables support for the MIPS Technologies SEAD3 evaluation
527 board.
528
529 config NEC_MARKEINS
530 bool "NEC EMMA2RH Mark-eins board"
531 select SOC_EMMA2RH
532 select HW_HAS_PCI
533 help
534 This enables support for the NEC Electronics Mark-eins boards.
535
536 config MACH_VR41XX
537 bool "NEC VR4100 series based machines"
538 select CEVT_R4K
539 select CSRC_R4K
540 select SYS_HAS_CPU_VR41XX
541 select SYS_SUPPORTS_MIPS16
542 select GPIOLIB
543
544 config NXP_STB220
545 bool "NXP STB220 board"
546 select SOC_PNX833X
547 help
548 Support for NXP Semiconductors STB220 Development Board.
549
550 config NXP_STB225
551 bool "NXP 225 board"
552 select SOC_PNX833X
553 select SOC_PNX8335
554 help
555 Support for NXP Semiconductors STB225 Development Board.
556
557 config PMC_MSP
558 bool "PMC-Sierra MSP chipsets"
559 select CEVT_R4K
560 select CSRC_R4K
561 select DMA_NONCOHERENT
562 select SWAP_IO_SPACE
563 select NO_EXCEPT_FILL
564 select BOOT_RAW
565 select SYS_HAS_CPU_MIPS32_R1
566 select SYS_HAS_CPU_MIPS32_R2
567 select SYS_SUPPORTS_32BIT_KERNEL
568 select SYS_SUPPORTS_BIG_ENDIAN
569 select SYS_SUPPORTS_MIPS16
570 select IRQ_MIPS_CPU
571 select SERIAL_8250
572 select SERIAL_8250_CONSOLE
573 select USB_EHCI_BIG_ENDIAN_MMIO
574 select USB_EHCI_BIG_ENDIAN_DESC
575 help
576 This adds support for the PMC-Sierra family of Multi-Service
577 Processor System-On-A-Chips. These parts include a number
578 of integrated peripherals, interfaces and DSPs in addition to
579 a variety of MIPS cores.
580
581 config RALINK
582 bool "Ralink based machines"
583 select CEVT_R4K
584 select CSRC_R4K
585 select BOOT_RAW
586 select DMA_NONCOHERENT
587 select IRQ_MIPS_CPU
588 select USE_OF
589 select SYS_HAS_CPU_MIPS32_R1
590 select SYS_HAS_CPU_MIPS32_R2
591 select SYS_SUPPORTS_32BIT_KERNEL
592 select SYS_SUPPORTS_LITTLE_ENDIAN
593 select SYS_SUPPORTS_MIPS16
594 select SYS_HAS_EARLY_PRINTK
595 select CLKDEV_LOOKUP
596 select ARCH_HAS_RESET_CONTROLLER
597 select RESET_CONTROLLER
598
599 config SGI_IP22
600 bool "SGI IP22 (Indy/Indigo2)"
601 select FW_ARC
602 select FW_ARC32
603 select BOOT_ELF32
604 select CEVT_R4K
605 select CSRC_R4K
606 select DEFAULT_SGI_PARTITION
607 select DMA_NONCOHERENT
608 select HW_HAS_EISA
609 select I8253
610 select I8259
611 select IP22_CPU_SCACHE
612 select IRQ_MIPS_CPU
613 select GENERIC_ISA_DMA_SUPPORT_BROKEN
614 select SGI_HAS_I8042
615 select SGI_HAS_INDYDOG
616 select SGI_HAS_HAL2
617 select SGI_HAS_SEEQ
618 select SGI_HAS_WD93
619 select SGI_HAS_ZILOG
620 select SWAP_IO_SPACE
621 select SYS_HAS_CPU_R4X00
622 select SYS_HAS_CPU_R5000
623 #
624 # Disable EARLY_PRINTK for now since it leads to overwritten prom
625 # memory during early boot on some machines.
626 #
627 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
628 # for a more details discussion
629 #
630 # select SYS_HAS_EARLY_PRINTK
631 select SYS_SUPPORTS_32BIT_KERNEL
632 select SYS_SUPPORTS_64BIT_KERNEL
633 select SYS_SUPPORTS_BIG_ENDIAN
634 select MIPS_L1_CACHE_SHIFT_7
635 help
636 This are the SGI Indy, Challenge S and Indigo2, as well as certain
637 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
638 that runs on these, say Y here.
639
640 config SGI_IP27
641 bool "SGI IP27 (Origin200/2000)"
642 select FW_ARC
643 select FW_ARC64
644 select BOOT_ELF64
645 select DEFAULT_SGI_PARTITION
646 select DMA_COHERENT
647 select SYS_HAS_EARLY_PRINTK
648 select HW_HAS_PCI
649 select NR_CPUS_DEFAULT_64
650 select SYS_HAS_CPU_R10000
651 select SYS_SUPPORTS_64BIT_KERNEL
652 select SYS_SUPPORTS_BIG_ENDIAN
653 select SYS_SUPPORTS_NUMA
654 select SYS_SUPPORTS_SMP
655 select MIPS_L1_CACHE_SHIFT_7
656 help
657 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
658 workstations. To compile a Linux kernel that runs on these, say Y
659 here.
660
661 config SGI_IP28
662 bool "SGI IP28 (Indigo2 R10k)"
663 select FW_ARC
664 select FW_ARC64
665 select BOOT_ELF64
666 select CEVT_R4K
667 select CSRC_R4K
668 select DEFAULT_SGI_PARTITION
669 select DMA_NONCOHERENT
670 select GENERIC_ISA_DMA_SUPPORT_BROKEN
671 select IRQ_MIPS_CPU
672 select HW_HAS_EISA
673 select I8253
674 select I8259
675 select SGI_HAS_I8042
676 select SGI_HAS_INDYDOG
677 select SGI_HAS_HAL2
678 select SGI_HAS_SEEQ
679 select SGI_HAS_WD93
680 select SGI_HAS_ZILOG
681 select SWAP_IO_SPACE
682 select SYS_HAS_CPU_R10000
683 #
684 # Disable EARLY_PRINTK for now since it leads to overwritten prom
685 # memory during early boot on some machines.
686 #
687 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
688 # for a more details discussion
689 #
690 # select SYS_HAS_EARLY_PRINTK
691 select SYS_SUPPORTS_64BIT_KERNEL
692 select SYS_SUPPORTS_BIG_ENDIAN
693 select MIPS_L1_CACHE_SHIFT_7
694 help
695 This is the SGI Indigo2 with R10000 processor. To compile a Linux
696 kernel that runs on these, say Y here.
697
698 config SGI_IP32
699 bool "SGI IP32 (O2)"
700 select FW_ARC
701 select FW_ARC32
702 select BOOT_ELF32
703 select CEVT_R4K
704 select CSRC_R4K
705 select DMA_NONCOHERENT
706 select HW_HAS_PCI
707 select IRQ_MIPS_CPU
708 select R5000_CPU_SCACHE
709 select RM7000_CPU_SCACHE
710 select SYS_HAS_CPU_R5000
711 select SYS_HAS_CPU_R10000 if BROKEN
712 select SYS_HAS_CPU_RM7000
713 select SYS_HAS_CPU_NEVADA
714 select SYS_SUPPORTS_64BIT_KERNEL
715 select SYS_SUPPORTS_BIG_ENDIAN
716 help
717 If you want this kernel to run on SGI O2 workstation, say Y here.
718
719 config SIBYTE_CRHINE
720 bool "Sibyte BCM91120C-CRhine"
721 select BOOT_ELF32
722 select DMA_COHERENT
723 select SIBYTE_BCM1120
724 select SWAP_IO_SPACE
725 select SYS_HAS_CPU_SB1
726 select SYS_SUPPORTS_BIG_ENDIAN
727 select SYS_SUPPORTS_LITTLE_ENDIAN
728
729 config SIBYTE_CARMEL
730 bool "Sibyte BCM91120x-Carmel"
731 select BOOT_ELF32
732 select DMA_COHERENT
733 select SIBYTE_BCM1120
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_CRHONE
740 bool "Sibyte BCM91125C-CRhone"
741 select BOOT_ELF32
742 select DMA_COHERENT
743 select SIBYTE_BCM1125
744 select SWAP_IO_SPACE
745 select SYS_HAS_CPU_SB1
746 select SYS_SUPPORTS_BIG_ENDIAN
747 select SYS_SUPPORTS_HIGHMEM
748 select SYS_SUPPORTS_LITTLE_ENDIAN
749
750 config SIBYTE_RHONE
751 bool "Sibyte BCM91125E-Rhone"
752 select BOOT_ELF32
753 select DMA_COHERENT
754 select SIBYTE_BCM1125H
755 select SWAP_IO_SPACE
756 select SYS_HAS_CPU_SB1
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_LITTLE_ENDIAN
759
760 config SIBYTE_SWARM
761 bool "Sibyte BCM91250A-SWARM"
762 select BOOT_ELF32
763 select DMA_COHERENT
764 select HAVE_PATA_PLATFORM
765 select SIBYTE_SB1250
766 select SWAP_IO_SPACE
767 select SYS_HAS_CPU_SB1
768 select SYS_SUPPORTS_BIG_ENDIAN
769 select SYS_SUPPORTS_HIGHMEM
770 select SYS_SUPPORTS_LITTLE_ENDIAN
771 select ZONE_DMA32 if 64BIT
772
773 config SIBYTE_LITTLESUR
774 bool "Sibyte BCM91250C2-LittleSur"
775 select BOOT_ELF32
776 select DMA_COHERENT
777 select HAVE_PATA_PLATFORM
778 select SIBYTE_SB1250
779 select SWAP_IO_SPACE
780 select SYS_HAS_CPU_SB1
781 select SYS_SUPPORTS_BIG_ENDIAN
782 select SYS_SUPPORTS_HIGHMEM
783 select SYS_SUPPORTS_LITTLE_ENDIAN
784
785 config SIBYTE_SENTOSA
786 bool "Sibyte BCM91250E-Sentosa"
787 select BOOT_ELF32
788 select DMA_COHERENT
789 select SIBYTE_SB1250
790 select SWAP_IO_SPACE
791 select SYS_HAS_CPU_SB1
792 select SYS_SUPPORTS_BIG_ENDIAN
793 select SYS_SUPPORTS_LITTLE_ENDIAN
794
795 config SIBYTE_BIGSUR
796 bool "Sibyte BCM91480B-BigSur"
797 select BOOT_ELF32
798 select DMA_COHERENT
799 select NR_CPUS_DEFAULT_4
800 select SIBYTE_BCM1x80
801 select SWAP_IO_SPACE
802 select SYS_HAS_CPU_SB1
803 select SYS_SUPPORTS_BIG_ENDIAN
804 select SYS_SUPPORTS_HIGHMEM
805 select SYS_SUPPORTS_LITTLE_ENDIAN
806 select ZONE_DMA32 if 64BIT
807
808 config SNI_RM
809 bool "SNI RM200/300/400"
810 select FW_ARC if CPU_LITTLE_ENDIAN
811 select FW_ARC32 if CPU_LITTLE_ENDIAN
812 select FW_SNIPROM if CPU_BIG_ENDIAN
813 select ARCH_MAY_HAVE_PC_FDC
814 select BOOT_ELF32
815 select CEVT_R4K
816 select CSRC_R4K
817 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
818 select DMA_NONCOHERENT
819 select GENERIC_ISA_DMA
820 select HAVE_PCSPKR_PLATFORM
821 select HW_HAS_EISA
822 select HW_HAS_PCI
823 select IRQ_MIPS_CPU
824 select I8253
825 select I8259
826 select ISA
827 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
828 select SYS_HAS_CPU_R4X00
829 select SYS_HAS_CPU_R5000
830 select SYS_HAS_CPU_R10000
831 select R5000_CPU_SCACHE
832 select SYS_HAS_EARLY_PRINTK
833 select SYS_SUPPORTS_32BIT_KERNEL
834 select SYS_SUPPORTS_64BIT_KERNEL
835 select SYS_SUPPORTS_BIG_ENDIAN
836 select SYS_SUPPORTS_HIGHMEM
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838 help
839 The SNI RM200/300/400 are MIPS-based machines manufactured by
840 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
841 Technology and now in turn merged with Fujitsu. Say Y here to
842 support this machine type.
843
844 config MACH_TX39XX
845 bool "Toshiba TX39 series based machines"
846
847 config MACH_TX49XX
848 bool "Toshiba TX49 series based machines"
849
850 config MIKROTIK_RB532
851 bool "Mikrotik RB532 boards"
852 select CEVT_R4K
853 select CSRC_R4K
854 select DMA_NONCOHERENT
855 select HW_HAS_PCI
856 select IRQ_MIPS_CPU
857 select SYS_HAS_CPU_MIPS32_R1
858 select SYS_SUPPORTS_32BIT_KERNEL
859 select SYS_SUPPORTS_LITTLE_ENDIAN
860 select SWAP_IO_SPACE
861 select BOOT_RAW
862 select GPIOLIB
863 select MIPS_L1_CACHE_SHIFT_4
864 help
865 Support the Mikrotik(tm) RouterBoard 532 series,
866 based on the IDT RC32434 SoC.
867
868 config CAVIUM_OCTEON_SOC
869 bool "Cavium Networks Octeon SoC based boards"
870 select CEVT_R4K
871 select ARCH_PHYS_ADDR_T_64BIT
872 select DMA_COHERENT
873 select SYS_SUPPORTS_64BIT_KERNEL
874 select SYS_SUPPORTS_BIG_ENDIAN
875 select EDAC_SUPPORT
876 select EDAC_ATOMIC_SCRUB
877 select SYS_SUPPORTS_LITTLE_ENDIAN
878 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
879 select SYS_HAS_EARLY_PRINTK
880 select SYS_HAS_CPU_CAVIUM_OCTEON
881 select SWAP_IO_SPACE
882 select HW_HAS_PCI
883 select ZONE_DMA32
884 select HOLES_IN_ZONE
885 select GPIOLIB
886 select LIBFDT
887 select USE_OF
888 select ARCH_SPARSEMEM_ENABLE
889 select SYS_SUPPORTS_SMP
890 select NR_CPUS_DEFAULT_16
891 select BUILTIN_DTB
892 select MTD_COMPLEX_MAPPINGS
893 help
894 This option supports all of the Octeon reference boards from Cavium
895 Networks. It builds a kernel that dynamically determines the Octeon
896 CPU type and supports all known board reference implementations.
897 Some of the supported boards are:
898 EBT3000
899 EBH3000
900 EBH3100
901 Thunder
902 Kodama
903 Hikari
904 Say Y here for most Octeon reference boards.
905
906 config NLM_XLR_BOARD
907 bool "Netlogic XLR/XLS based systems"
908 select BOOT_ELF32
909 select NLM_COMMON
910 select SYS_HAS_CPU_XLR
911 select SYS_SUPPORTS_SMP
912 select HW_HAS_PCI
913 select SWAP_IO_SPACE
914 select SYS_SUPPORTS_32BIT_KERNEL
915 select SYS_SUPPORTS_64BIT_KERNEL
916 select ARCH_PHYS_ADDR_T_64BIT
917 select SYS_SUPPORTS_BIG_ENDIAN
918 select SYS_SUPPORTS_HIGHMEM
919 select DMA_COHERENT
920 select NR_CPUS_DEFAULT_32
921 select CEVT_R4K
922 select CSRC_R4K
923 select IRQ_MIPS_CPU
924 select ZONE_DMA32 if 64BIT
925 select SYNC_R4K
926 select SYS_HAS_EARLY_PRINTK
927 select SYS_SUPPORTS_ZBOOT
928 select SYS_SUPPORTS_ZBOOT_UART16550
929 help
930 Support for systems based on Netlogic XLR and XLS processors.
931 Say Y here if you have a XLR or XLS based board.
932
933 config NLM_XLP_BOARD
934 bool "Netlogic XLP based systems"
935 select BOOT_ELF32
936 select NLM_COMMON
937 select SYS_HAS_CPU_XLP
938 select SYS_SUPPORTS_SMP
939 select HW_HAS_PCI
940 select SYS_SUPPORTS_32BIT_KERNEL
941 select SYS_SUPPORTS_64BIT_KERNEL
942 select ARCH_PHYS_ADDR_T_64BIT
943 select GPIOLIB
944 select SYS_SUPPORTS_BIG_ENDIAN
945 select SYS_SUPPORTS_LITTLE_ENDIAN
946 select SYS_SUPPORTS_HIGHMEM
947 select DMA_COHERENT
948 select NR_CPUS_DEFAULT_32
949 select CEVT_R4K
950 select CSRC_R4K
951 select IRQ_MIPS_CPU
952 select ZONE_DMA32 if 64BIT
953 select SYNC_R4K
954 select SYS_HAS_EARLY_PRINTK
955 select USE_OF
956 select SYS_SUPPORTS_ZBOOT
957 select SYS_SUPPORTS_ZBOOT_UART16550
958 help
959 This board is based on Netlogic XLP Processor.
960 Say Y here if you have a XLP based board.
961
962 config MIPS_PARAVIRT
963 bool "Para-Virtualized guest system"
964 select CEVT_R4K
965 select CSRC_R4K
966 select DMA_COHERENT
967 select SYS_SUPPORTS_64BIT_KERNEL
968 select SYS_SUPPORTS_32BIT_KERNEL
969 select SYS_SUPPORTS_BIG_ENDIAN
970 select SYS_SUPPORTS_SMP
971 select NR_CPUS_DEFAULT_4
972 select SYS_HAS_EARLY_PRINTK
973 select SYS_HAS_CPU_MIPS32_R2
974 select SYS_HAS_CPU_MIPS64_R2
975 select SYS_HAS_CPU_CAVIUM_OCTEON
976 select HW_HAS_PCI
977 select SWAP_IO_SPACE
978 help
979 This option supports guest running under ????
980
981 endchoice
982
983 source "arch/mips/alchemy/Kconfig"
984 source "arch/mips/ath25/Kconfig"
985 source "arch/mips/ath79/Kconfig"
986 source "arch/mips/bcm47xx/Kconfig"
987 source "arch/mips/bcm63xx/Kconfig"
988 source "arch/mips/bmips/Kconfig"
989 source "arch/mips/jazz/Kconfig"
990 source "arch/mips/jz4740/Kconfig"
991 source "arch/mips/lantiq/Kconfig"
992 source "arch/mips/lasat/Kconfig"
993 source "arch/mips/pic32/Kconfig"
994 source "arch/mips/pistachio/Kconfig"
995 source "arch/mips/pmcs-msp71xx/Kconfig"
996 source "arch/mips/ralink/Kconfig"
997 source "arch/mips/sgi-ip27/Kconfig"
998 source "arch/mips/sibyte/Kconfig"
999 source "arch/mips/txx9/Kconfig"
1000 source "arch/mips/vr41xx/Kconfig"
1001 source "arch/mips/cavium-octeon/Kconfig"
1002 source "arch/mips/loongson32/Kconfig"
1003 source "arch/mips/loongson64/Kconfig"
1004 source "arch/mips/netlogic/Kconfig"
1005 source "arch/mips/paravirt/Kconfig"
1006 source "arch/mips/xilfpga/Kconfig"
1007
1008 endmenu
1009
1010 config RWSEM_GENERIC_SPINLOCK
1011 bool
1012 default y
1013
1014 config RWSEM_XCHGADD_ALGORITHM
1015 bool
1016
1017 config ARCH_HAS_ILOG2_U32
1018 bool
1019 default n
1020
1021 config ARCH_HAS_ILOG2_U64
1022 bool
1023 default n
1024
1025 config GENERIC_HWEIGHT
1026 bool
1027 default y
1028
1029 config GENERIC_CALIBRATE_DELAY
1030 bool
1031 default y
1032
1033 config SCHED_OMIT_FRAME_POINTER
1034 bool
1035 default y
1036
1037 #
1038 # Select some configuration options automatically based on user selections.
1039 #
1040 config FW_ARC
1041 bool
1042
1043 config ARCH_MAY_HAVE_PC_FDC
1044 bool
1045
1046 config BOOT_RAW
1047 bool
1048
1049 config CEVT_BCM1480
1050 bool
1051
1052 config CEVT_DS1287
1053 bool
1054
1055 config CEVT_GT641XX
1056 bool
1057
1058 config CEVT_R4K
1059 bool
1060
1061 config CEVT_SB1250
1062 bool
1063
1064 config CEVT_TXX9
1065 bool
1066
1067 config CSRC_BCM1480
1068 bool
1069
1070 config CSRC_IOASIC
1071 bool
1072
1073 config CSRC_R4K
1074 bool
1075
1076 config CSRC_SB1250
1077 bool
1078
1079 config MIPS_CLOCK_VSYSCALL
1080 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1081
1082 config GPIO_TXX9
1083 select GPIOLIB
1084 bool
1085
1086 config FW_CFE
1087 bool
1088
1089 config ARCH_DMA_ADDR_T_64BIT
1090 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1091
1092 config ARCH_SUPPORTS_UPROBES
1093 bool
1094
1095 config DMA_MAYBE_COHERENT
1096 select DMA_NONCOHERENT
1097 bool
1098
1099 config DMA_COHERENT
1100 bool
1101
1102 config DMA_NONCOHERENT
1103 bool
1104 select NEED_DMA_MAP_STATE
1105
1106 config NEED_DMA_MAP_STATE
1107 bool
1108
1109 config SYS_HAS_EARLY_PRINTK
1110 bool
1111
1112 config HOTPLUG_CPU
1113 bool "Support for hot-pluggable CPUs"
1114 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1115 help
1116 Say Y here to allow turning CPUs off and on. CPUs can be
1117 controlled through /sys/devices/system/cpu.
1118 (Note: power management support will enable this option
1119 automatically on SMP systems. )
1120 Say N if you want to disable CPU hotplug.
1121
1122 config SYS_SUPPORTS_HOTPLUG_CPU
1123 bool
1124
1125 config MIPS_BONITO64
1126 bool
1127
1128 config MIPS_MSC
1129 bool
1130
1131 config MIPS_NILE4
1132 bool
1133
1134 config SYNC_R4K
1135 bool
1136
1137 config MIPS_MACHINE
1138 def_bool n
1139
1140 config NO_IOPORT_MAP
1141 def_bool n
1142
1143 config GENERIC_CSUM
1144 bool
1145
1146 config GENERIC_ISA_DMA
1147 bool
1148 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1149 select ISA_DMA_API
1150
1151 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1152 bool
1153 select GENERIC_ISA_DMA
1154
1155 config ISA_DMA_API
1156 bool
1157
1158 config HOLES_IN_ZONE
1159 bool
1160
1161 config SYS_SUPPORTS_RELOCATABLE
1162 bool
1163 help
1164 Selected if the platform supports relocating the kernel.
1165 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1166 to allow access to command line and entropy sources.
1167
1168 #
1169 # Endianness selection. Sufficiently obscure so many users don't know what to
1170 # answer,so we try hard to limit the available choices. Also the use of a
1171 # choice statement should be more obvious to the user.
1172 #
1173 choice
1174 prompt "Endianness selection"
1175 help
1176 Some MIPS machines can be configured for either little or big endian
1177 byte order. These modes require different kernels and a different
1178 Linux distribution. In general there is one preferred byteorder for a
1179 particular system but some systems are just as commonly used in the
1180 one or the other endianness.
1181
1182 config CPU_BIG_ENDIAN
1183 bool "Big endian"
1184 depends on SYS_SUPPORTS_BIG_ENDIAN
1185
1186 config CPU_LITTLE_ENDIAN
1187 bool "Little endian"
1188 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1189
1190 endchoice
1191
1192 config EXPORT_UASM
1193 bool
1194
1195 config SYS_SUPPORTS_APM_EMULATION
1196 bool
1197
1198 config SYS_SUPPORTS_BIG_ENDIAN
1199 bool
1200
1201 config SYS_SUPPORTS_LITTLE_ENDIAN
1202 bool
1203
1204 config SYS_SUPPORTS_HUGETLBFS
1205 bool
1206 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1207 default y
1208
1209 config MIPS_HUGE_TLB_SUPPORT
1210 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1211
1212 config IRQ_CPU_RM7K
1213 bool
1214
1215 config IRQ_MSP_SLP
1216 bool
1217
1218 config IRQ_MSP_CIC
1219 bool
1220
1221 config IRQ_TXX9
1222 bool
1223
1224 config IRQ_GT641XX
1225 bool
1226
1227 config PCI_GT64XXX_PCI0
1228 bool
1229
1230 config NO_EXCEPT_FILL
1231 bool
1232
1233 config SOC_EMMA2RH
1234 bool
1235 select CEVT_R4K
1236 select CSRC_R4K
1237 select DMA_NONCOHERENT
1238 select IRQ_MIPS_CPU
1239 select SWAP_IO_SPACE
1240 select SYS_HAS_CPU_R5500
1241 select SYS_SUPPORTS_32BIT_KERNEL
1242 select SYS_SUPPORTS_64BIT_KERNEL
1243 select SYS_SUPPORTS_BIG_ENDIAN
1244
1245 config SOC_PNX833X
1246 bool
1247 select CEVT_R4K
1248 select CSRC_R4K
1249 select IRQ_MIPS_CPU
1250 select DMA_NONCOHERENT
1251 select SYS_HAS_CPU_MIPS32_R2
1252 select SYS_SUPPORTS_32BIT_KERNEL
1253 select SYS_SUPPORTS_LITTLE_ENDIAN
1254 select SYS_SUPPORTS_BIG_ENDIAN
1255 select SYS_SUPPORTS_MIPS16
1256 select CPU_MIPSR2_IRQ_VI
1257
1258 config SOC_PNX8335
1259 bool
1260 select SOC_PNX833X
1261
1262 config MIPS_SPRAM
1263 bool
1264
1265 config SWAP_IO_SPACE
1266 bool
1267
1268 config SGI_HAS_INDYDOG
1269 bool
1270
1271 config SGI_HAS_HAL2
1272 bool
1273
1274 config SGI_HAS_SEEQ
1275 bool
1276
1277 config SGI_HAS_WD93
1278 bool
1279
1280 config SGI_HAS_ZILOG
1281 bool
1282
1283 config SGI_HAS_I8042
1284 bool
1285
1286 config DEFAULT_SGI_PARTITION
1287 bool
1288
1289 config FW_ARC32
1290 bool
1291
1292 config FW_SNIPROM
1293 bool
1294
1295 config BOOT_ELF32
1296 bool
1297
1298 config MIPS_L1_CACHE_SHIFT_4
1299 bool
1300
1301 config MIPS_L1_CACHE_SHIFT_5
1302 bool
1303
1304 config MIPS_L1_CACHE_SHIFT_6
1305 bool
1306
1307 config MIPS_L1_CACHE_SHIFT_7
1308 bool
1309
1310 config MIPS_L1_CACHE_SHIFT
1311 int
1312 default "7" if MIPS_L1_CACHE_SHIFT_7
1313 default "6" if MIPS_L1_CACHE_SHIFT_6
1314 default "5" if MIPS_L1_CACHE_SHIFT_5
1315 default "4" if MIPS_L1_CACHE_SHIFT_4
1316 default "5"
1317
1318 config HAVE_STD_PC_SERIAL_PORT
1319 bool
1320
1321 config ARC_CONSOLE
1322 bool "ARC console support"
1323 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1324
1325 config ARC_MEMORY
1326 bool
1327 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1328 default y
1329
1330 config ARC_PROMLIB
1331 bool
1332 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1333 default y
1334
1335 config FW_ARC64
1336 bool
1337
1338 config BOOT_ELF64
1339 bool
1340
1341 menu "CPU selection"
1342
1343 choice
1344 prompt "CPU type"
1345 default CPU_R4X00
1346
1347 config CPU_LOONGSON3
1348 bool "Loongson 3 CPU"
1349 depends on SYS_HAS_CPU_LOONGSON3
1350 select CPU_SUPPORTS_64BIT_KERNEL
1351 select CPU_SUPPORTS_HIGHMEM
1352 select CPU_SUPPORTS_HUGEPAGES
1353 select WEAK_ORDERING
1354 select WEAK_REORDERING_BEYOND_LLSC
1355 select MIPS_PGD_C0_CONTEXT
1356 select GPIOLIB
1357 help
1358 The Loongson 3 processor implements the MIPS64R2 instruction
1359 set with many extensions.
1360
1361 config LOONGSON3_ENHANCEMENT
1362 bool "New Loongson 3 CPU Enhancements"
1363 default n
1364 select CPU_MIPSR2
1365 select CPU_HAS_PREFETCH
1366 depends on CPU_LOONGSON3
1367 help
1368 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1369 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1370 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1371 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1372 Fast TLB refill support, etc.
1373
1374 This option enable those enhancements which are not probed at run
1375 time. If you want a generic kernel to run on all Loongson 3 machines,
1376 please say 'N' here. If you want a high-performance kernel to run on
1377 new Loongson 3 machines only, please say 'Y' here.
1378
1379 config CPU_LOONGSON2E
1380 bool "Loongson 2E"
1381 depends on SYS_HAS_CPU_LOONGSON2E
1382 select CPU_LOONGSON2
1383 help
1384 The Loongson 2E processor implements the MIPS III instruction set
1385 with many extensions.
1386
1387 It has an internal FPGA northbridge, which is compatible to
1388 bonito64.
1389
1390 config CPU_LOONGSON2F
1391 bool "Loongson 2F"
1392 depends on SYS_HAS_CPU_LOONGSON2F
1393 select CPU_LOONGSON2
1394 select GPIOLIB
1395 help
1396 The Loongson 2F processor implements the MIPS III instruction set
1397 with many extensions.
1398
1399 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1400 have a similar programming interface with FPGA northbridge used in
1401 Loongson2E.
1402
1403 config CPU_LOONGSON1B
1404 bool "Loongson 1B"
1405 depends on SYS_HAS_CPU_LOONGSON1B
1406 select CPU_LOONGSON1
1407 select ARCH_WANT_OPTIONAL_GPIOLIB
1408 select LEDS_GPIO_REGISTER
1409 help
1410 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1411 release 2 instruction set.
1412
1413 config CPU_MIPS32_R1
1414 bool "MIPS32 Release 1"
1415 depends on SYS_HAS_CPU_MIPS32_R1
1416 select CPU_HAS_PREFETCH
1417 select CPU_SUPPORTS_32BIT_KERNEL
1418 select CPU_SUPPORTS_HIGHMEM
1419 help
1420 Choose this option to build a kernel for release 1 or later of the
1421 MIPS32 architecture. Most modern embedded systems with a 32-bit
1422 MIPS processor are based on a MIPS32 processor. If you know the
1423 specific type of processor in your system, choose those that one
1424 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1425 Release 2 of the MIPS32 architecture is available since several
1426 years so chances are you even have a MIPS32 Release 2 processor
1427 in which case you should choose CPU_MIPS32_R2 instead for better
1428 performance.
1429
1430 config CPU_MIPS32_R2
1431 bool "MIPS32 Release 2"
1432 depends on SYS_HAS_CPU_MIPS32_R2
1433 select CPU_HAS_PREFETCH
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_HIGHMEM
1436 select CPU_SUPPORTS_MSA
1437 select HAVE_KVM
1438 help
1439 Choose this option to build a kernel for release 2 or later of the
1440 MIPS32 architecture. Most modern embedded systems with a 32-bit
1441 MIPS processor are based on a MIPS32 processor. If you know the
1442 specific type of processor in your system, choose those that one
1443 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1444
1445 config CPU_MIPS32_R6
1446 bool "MIPS32 Release 6"
1447 depends on SYS_HAS_CPU_MIPS32_R6
1448 select CPU_HAS_PREFETCH
1449 select CPU_SUPPORTS_32BIT_KERNEL
1450 select CPU_SUPPORTS_HIGHMEM
1451 select CPU_SUPPORTS_MSA
1452 select GENERIC_CSUM
1453 select HAVE_KVM
1454 select MIPS_O32_FP64_SUPPORT
1455 help
1456 Choose this option to build a kernel for release 6 or later of the
1457 MIPS32 architecture. New MIPS processors, starting with the Warrior
1458 family, are based on a MIPS32r6 processor. If you own an older
1459 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1460
1461 config CPU_MIPS64_R1
1462 bool "MIPS64 Release 1"
1463 depends on SYS_HAS_CPU_MIPS64_R1
1464 select CPU_HAS_PREFETCH
1465 select CPU_SUPPORTS_32BIT_KERNEL
1466 select CPU_SUPPORTS_64BIT_KERNEL
1467 select CPU_SUPPORTS_HIGHMEM
1468 select CPU_SUPPORTS_HUGEPAGES
1469 help
1470 Choose this option to build a kernel for release 1 or later of the
1471 MIPS64 architecture. Many modern embedded systems with a 64-bit
1472 MIPS processor are based on a MIPS64 processor. If you know the
1473 specific type of processor in your system, choose those that one
1474 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1475 Release 2 of the MIPS64 architecture is available since several
1476 years so chances are you even have a MIPS64 Release 2 processor
1477 in which case you should choose CPU_MIPS64_R2 instead for better
1478 performance.
1479
1480 config CPU_MIPS64_R2
1481 bool "MIPS64 Release 2"
1482 depends on SYS_HAS_CPU_MIPS64_R2
1483 select CPU_HAS_PREFETCH
1484 select CPU_SUPPORTS_32BIT_KERNEL
1485 select CPU_SUPPORTS_64BIT_KERNEL
1486 select CPU_SUPPORTS_HIGHMEM
1487 select CPU_SUPPORTS_HUGEPAGES
1488 select CPU_SUPPORTS_MSA
1489 help
1490 Choose this option to build a kernel for release 2 or later of the
1491 MIPS64 architecture. Many modern embedded systems with a 64-bit
1492 MIPS processor are based on a MIPS64 processor. If you know the
1493 specific type of processor in your system, choose those that one
1494 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1495
1496 config CPU_MIPS64_R6
1497 bool "MIPS64 Release 6"
1498 depends on SYS_HAS_CPU_MIPS64_R6
1499 select CPU_HAS_PREFETCH
1500 select CPU_SUPPORTS_32BIT_KERNEL
1501 select CPU_SUPPORTS_64BIT_KERNEL
1502 select CPU_SUPPORTS_HIGHMEM
1503 select CPU_SUPPORTS_MSA
1504 select GENERIC_CSUM
1505 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1506 help
1507 Choose this option to build a kernel for release 6 or later of the
1508 MIPS64 architecture. New MIPS processors, starting with the Warrior
1509 family, are based on a MIPS64r6 processor. If you own an older
1510 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1511
1512 config CPU_R3000
1513 bool "R3000"
1514 depends on SYS_HAS_CPU_R3000
1515 select CPU_HAS_WB
1516 select CPU_SUPPORTS_32BIT_KERNEL
1517 select CPU_SUPPORTS_HIGHMEM
1518 help
1519 Please make sure to pick the right CPU type. Linux/MIPS is not
1520 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1521 *not* work on R4000 machines and vice versa. However, since most
1522 of the supported machines have an R4000 (or similar) CPU, R4x00
1523 might be a safe bet. If the resulting kernel does not work,
1524 try to recompile with R3000.
1525
1526 config CPU_TX39XX
1527 bool "R39XX"
1528 depends on SYS_HAS_CPU_TX39XX
1529 select CPU_SUPPORTS_32BIT_KERNEL
1530
1531 config CPU_VR41XX
1532 bool "R41xx"
1533 depends on SYS_HAS_CPU_VR41XX
1534 select CPU_SUPPORTS_32BIT_KERNEL
1535 select CPU_SUPPORTS_64BIT_KERNEL
1536 help
1537 The options selects support for the NEC VR4100 series of processors.
1538 Only choose this option if you have one of these processors as a
1539 kernel built with this option will not run on any other type of
1540 processor or vice versa.
1541
1542 config CPU_R4300
1543 bool "R4300"
1544 depends on SYS_HAS_CPU_R4300
1545 select CPU_SUPPORTS_32BIT_KERNEL
1546 select CPU_SUPPORTS_64BIT_KERNEL
1547 help
1548 MIPS Technologies R4300-series processors.
1549
1550 config CPU_R4X00
1551 bool "R4x00"
1552 depends on SYS_HAS_CPU_R4X00
1553 select CPU_SUPPORTS_32BIT_KERNEL
1554 select CPU_SUPPORTS_64BIT_KERNEL
1555 select CPU_SUPPORTS_HUGEPAGES
1556 help
1557 MIPS Technologies R4000-series processors other than 4300, including
1558 the R4000, R4400, R4600, and 4700.
1559
1560 config CPU_TX49XX
1561 bool "R49XX"
1562 depends on SYS_HAS_CPU_TX49XX
1563 select CPU_HAS_PREFETCH
1564 select CPU_SUPPORTS_32BIT_KERNEL
1565 select CPU_SUPPORTS_64BIT_KERNEL
1566 select CPU_SUPPORTS_HUGEPAGES
1567
1568 config CPU_R5000
1569 bool "R5000"
1570 depends on SYS_HAS_CPU_R5000
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_SUPPORTS_64BIT_KERNEL
1573 select CPU_SUPPORTS_HUGEPAGES
1574 help
1575 MIPS Technologies R5000-series processors other than the Nevada.
1576
1577 config CPU_R5432
1578 bool "R5432"
1579 depends on SYS_HAS_CPU_R5432
1580 select CPU_SUPPORTS_32BIT_KERNEL
1581 select CPU_SUPPORTS_64BIT_KERNEL
1582 select CPU_SUPPORTS_HUGEPAGES
1583
1584 config CPU_R5500
1585 bool "R5500"
1586 depends on SYS_HAS_CPU_R5500
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_64BIT_KERNEL
1589 select CPU_SUPPORTS_HUGEPAGES
1590 help
1591 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1592 instruction set.
1593
1594 config CPU_R6000
1595 bool "R6000"
1596 depends on SYS_HAS_CPU_R6000
1597 select CPU_SUPPORTS_32BIT_KERNEL
1598 help
1599 MIPS Technologies R6000 and R6000A series processors. Note these
1600 processors are extremely rare and the support for them is incomplete.
1601
1602 config CPU_NEVADA
1603 bool "RM52xx"
1604 depends on SYS_HAS_CPU_NEVADA
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_SUPPORTS_HUGEPAGES
1608 help
1609 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1610
1611 config CPU_R8000
1612 bool "R8000"
1613 depends on SYS_HAS_CPU_R8000
1614 select CPU_HAS_PREFETCH
1615 select CPU_SUPPORTS_64BIT_KERNEL
1616 help
1617 MIPS Technologies R8000 processors. Note these processors are
1618 uncommon and the support for them is incomplete.
1619
1620 config CPU_R10000
1621 bool "R10000"
1622 depends on SYS_HAS_CPU_R10000
1623 select CPU_HAS_PREFETCH
1624 select CPU_SUPPORTS_32BIT_KERNEL
1625 select CPU_SUPPORTS_64BIT_KERNEL
1626 select CPU_SUPPORTS_HIGHMEM
1627 select CPU_SUPPORTS_HUGEPAGES
1628 help
1629 MIPS Technologies R10000-series processors.
1630
1631 config CPU_RM7000
1632 bool "RM7000"
1633 depends on SYS_HAS_CPU_RM7000
1634 select CPU_HAS_PREFETCH
1635 select CPU_SUPPORTS_32BIT_KERNEL
1636 select CPU_SUPPORTS_64BIT_KERNEL
1637 select CPU_SUPPORTS_HIGHMEM
1638 select CPU_SUPPORTS_HUGEPAGES
1639
1640 config CPU_SB1
1641 bool "SB1"
1642 depends on SYS_HAS_CPU_SB1
1643 select CPU_SUPPORTS_32BIT_KERNEL
1644 select CPU_SUPPORTS_64BIT_KERNEL
1645 select CPU_SUPPORTS_HIGHMEM
1646 select CPU_SUPPORTS_HUGEPAGES
1647 select WEAK_ORDERING
1648
1649 config CPU_CAVIUM_OCTEON
1650 bool "Cavium Octeon processor"
1651 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1652 select CPU_HAS_PREFETCH
1653 select CPU_SUPPORTS_64BIT_KERNEL
1654 select WEAK_ORDERING
1655 select CPU_SUPPORTS_HIGHMEM
1656 select CPU_SUPPORTS_HUGEPAGES
1657 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1658 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1659 select MIPS_L1_CACHE_SHIFT_7
1660 help
1661 The Cavium Octeon processor is a highly integrated chip containing
1662 many ethernet hardware widgets for networking tasks. The processor
1663 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1664 Full details can be found at http://www.caviumnetworks.com.
1665
1666 config CPU_BMIPS
1667 bool "Broadcom BMIPS"
1668 depends on SYS_HAS_CPU_BMIPS
1669 select CPU_MIPS32
1670 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1671 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1672 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1673 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1674 select CPU_SUPPORTS_32BIT_KERNEL
1675 select DMA_NONCOHERENT
1676 select IRQ_MIPS_CPU
1677 select SWAP_IO_SPACE
1678 select WEAK_ORDERING
1679 select CPU_SUPPORTS_HIGHMEM
1680 select CPU_HAS_PREFETCH
1681 help
1682 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1683
1684 config CPU_XLR
1685 bool "Netlogic XLR SoC"
1686 depends on SYS_HAS_CPU_XLR
1687 select CPU_SUPPORTS_32BIT_KERNEL
1688 select CPU_SUPPORTS_64BIT_KERNEL
1689 select CPU_SUPPORTS_HIGHMEM
1690 select CPU_SUPPORTS_HUGEPAGES
1691 select WEAK_ORDERING
1692 select WEAK_REORDERING_BEYOND_LLSC
1693 help
1694 Netlogic Microsystems XLR/XLS processors.
1695
1696 config CPU_XLP
1697 bool "Netlogic XLP SoC"
1698 depends on SYS_HAS_CPU_XLP
1699 select CPU_SUPPORTS_32BIT_KERNEL
1700 select CPU_SUPPORTS_64BIT_KERNEL
1701 select CPU_SUPPORTS_HIGHMEM
1702 select WEAK_ORDERING
1703 select WEAK_REORDERING_BEYOND_LLSC
1704 select CPU_HAS_PREFETCH
1705 select CPU_MIPSR2
1706 select CPU_SUPPORTS_HUGEPAGES
1707 select MIPS_ASID_BITS_VARIABLE
1708 help
1709 Netlogic Microsystems XLP processors.
1710 endchoice
1711
1712 config CPU_MIPS32_3_5_FEATURES
1713 bool "MIPS32 Release 3.5 Features"
1714 depends on SYS_HAS_CPU_MIPS32_R3_5
1715 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1716 help
1717 Choose this option to build a kernel for release 2 or later of the
1718 MIPS32 architecture including features from the 3.5 release such as
1719 support for Enhanced Virtual Addressing (EVA).
1720
1721 config CPU_MIPS32_3_5_EVA
1722 bool "Enhanced Virtual Addressing (EVA)"
1723 depends on CPU_MIPS32_3_5_FEATURES
1724 select EVA
1725 default y
1726 help
1727 Choose this option if you want to enable the Enhanced Virtual
1728 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1729 One of its primary benefits is an increase in the maximum size
1730 of lowmem (up to 3GB). If unsure, say 'N' here.
1731
1732 config CPU_MIPS32_R5_FEATURES
1733 bool "MIPS32 Release 5 Features"
1734 depends on SYS_HAS_CPU_MIPS32_R5
1735 depends on CPU_MIPS32_R2
1736 help
1737 Choose this option to build a kernel for release 2 or later of the
1738 MIPS32 architecture including features from release 5 such as
1739 support for Extended Physical Addressing (XPA).
1740
1741 config CPU_MIPS32_R5_XPA
1742 bool "Extended Physical Addressing (XPA)"
1743 depends on CPU_MIPS32_R5_FEATURES
1744 depends on !EVA
1745 depends on !PAGE_SIZE_4KB
1746 depends on SYS_SUPPORTS_HIGHMEM
1747 select XPA
1748 select HIGHMEM
1749 select ARCH_PHYS_ADDR_T_64BIT
1750 default n
1751 help
1752 Choose this option if you want to enable the Extended Physical
1753 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1754 benefit is to increase physical addressing equal to or greater
1755 than 40 bits. Note that this has the side effect of turning on
1756 64-bit addressing which in turn makes the PTEs 64-bit in size.
1757 If unsure, say 'N' here.
1758
1759 if CPU_LOONGSON2F
1760 config CPU_NOP_WORKAROUNDS
1761 bool
1762
1763 config CPU_JUMP_WORKAROUNDS
1764 bool
1765
1766 config CPU_LOONGSON2F_WORKAROUNDS
1767 bool "Loongson 2F Workarounds"
1768 default y
1769 select CPU_NOP_WORKAROUNDS
1770 select CPU_JUMP_WORKAROUNDS
1771 help
1772 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1773 require workarounds. Without workarounds the system may hang
1774 unexpectedly. For more information please refer to the gas
1775 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1776
1777 Loongson 2F03 and later have fixed these issues and no workarounds
1778 are needed. The workarounds have no significant side effect on them
1779 but may decrease the performance of the system so this option should
1780 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1781 systems.
1782
1783 If unsure, please say Y.
1784 endif # CPU_LOONGSON2F
1785
1786 config SYS_SUPPORTS_ZBOOT
1787 bool
1788 select HAVE_KERNEL_GZIP
1789 select HAVE_KERNEL_BZIP2
1790 select HAVE_KERNEL_LZ4
1791 select HAVE_KERNEL_LZMA
1792 select HAVE_KERNEL_LZO
1793 select HAVE_KERNEL_XZ
1794
1795 config SYS_SUPPORTS_ZBOOT_UART16550
1796 bool
1797 select SYS_SUPPORTS_ZBOOT
1798
1799 config SYS_SUPPORTS_ZBOOT_UART_PROM
1800 bool
1801 select SYS_SUPPORTS_ZBOOT
1802
1803 config CPU_LOONGSON2
1804 bool
1805 select CPU_SUPPORTS_32BIT_KERNEL
1806 select CPU_SUPPORTS_64BIT_KERNEL
1807 select CPU_SUPPORTS_HIGHMEM
1808 select CPU_SUPPORTS_HUGEPAGES
1809
1810 config CPU_LOONGSON1
1811 bool
1812 select CPU_MIPS32
1813 select CPU_MIPSR2
1814 select CPU_HAS_PREFETCH
1815 select CPU_SUPPORTS_32BIT_KERNEL
1816 select CPU_SUPPORTS_HIGHMEM
1817 select CPU_SUPPORTS_CPUFREQ
1818
1819 config CPU_BMIPS32_3300
1820 select SMP_UP if SMP
1821 bool
1822
1823 config CPU_BMIPS4350
1824 bool
1825 select SYS_SUPPORTS_SMP
1826 select SYS_SUPPORTS_HOTPLUG_CPU
1827
1828 config CPU_BMIPS4380
1829 bool
1830 select MIPS_L1_CACHE_SHIFT_6
1831 select SYS_SUPPORTS_SMP
1832 select SYS_SUPPORTS_HOTPLUG_CPU
1833 select CPU_HAS_RIXI
1834
1835 config CPU_BMIPS5000
1836 bool
1837 select MIPS_CPU_SCACHE
1838 select MIPS_L1_CACHE_SHIFT_7
1839 select SYS_SUPPORTS_SMP
1840 select SYS_SUPPORTS_HOTPLUG_CPU
1841 select CPU_HAS_RIXI
1842
1843 config SYS_HAS_CPU_LOONGSON3
1844 bool
1845 select CPU_SUPPORTS_CPUFREQ
1846 select CPU_HAS_RIXI
1847
1848 config SYS_HAS_CPU_LOONGSON2E
1849 bool
1850
1851 config SYS_HAS_CPU_LOONGSON2F
1852 bool
1853 select CPU_SUPPORTS_CPUFREQ
1854 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1855 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1856
1857 config SYS_HAS_CPU_LOONGSON1B
1858 bool
1859
1860 config SYS_HAS_CPU_MIPS32_R1
1861 bool
1862
1863 config SYS_HAS_CPU_MIPS32_R2
1864 bool
1865
1866 config SYS_HAS_CPU_MIPS32_R3_5
1867 bool
1868
1869 config SYS_HAS_CPU_MIPS32_R5
1870 bool
1871
1872 config SYS_HAS_CPU_MIPS32_R6
1873 bool
1874
1875 config SYS_HAS_CPU_MIPS64_R1
1876 bool
1877
1878 config SYS_HAS_CPU_MIPS64_R2
1879 bool
1880
1881 config SYS_HAS_CPU_MIPS64_R6
1882 bool
1883
1884 config SYS_HAS_CPU_R3000
1885 bool
1886
1887 config SYS_HAS_CPU_TX39XX
1888 bool
1889
1890 config SYS_HAS_CPU_VR41XX
1891 bool
1892
1893 config SYS_HAS_CPU_R4300
1894 bool
1895
1896 config SYS_HAS_CPU_R4X00
1897 bool
1898
1899 config SYS_HAS_CPU_TX49XX
1900 bool
1901
1902 config SYS_HAS_CPU_R5000
1903 bool
1904
1905 config SYS_HAS_CPU_R5432
1906 bool
1907
1908 config SYS_HAS_CPU_R5500
1909 bool
1910
1911 config SYS_HAS_CPU_R6000
1912 bool
1913
1914 config SYS_HAS_CPU_NEVADA
1915 bool
1916
1917 config SYS_HAS_CPU_R8000
1918 bool
1919
1920 config SYS_HAS_CPU_R10000
1921 bool
1922
1923 config SYS_HAS_CPU_RM7000
1924 bool
1925
1926 config SYS_HAS_CPU_SB1
1927 bool
1928
1929 config SYS_HAS_CPU_CAVIUM_OCTEON
1930 bool
1931
1932 config SYS_HAS_CPU_BMIPS
1933 bool
1934
1935 config SYS_HAS_CPU_BMIPS32_3300
1936 bool
1937 select SYS_HAS_CPU_BMIPS
1938
1939 config SYS_HAS_CPU_BMIPS4350
1940 bool
1941 select SYS_HAS_CPU_BMIPS
1942
1943 config SYS_HAS_CPU_BMIPS4380
1944 bool
1945 select SYS_HAS_CPU_BMIPS
1946
1947 config SYS_HAS_CPU_BMIPS5000
1948 bool
1949 select SYS_HAS_CPU_BMIPS
1950
1951 config SYS_HAS_CPU_XLR
1952 bool
1953
1954 config SYS_HAS_CPU_XLP
1955 bool
1956
1957 config MIPS_MALTA_PM
1958 depends on MIPS_MALTA
1959 depends on PCI
1960 bool
1961 default y
1962
1963 #
1964 # CPU may reorder R->R, R->W, W->R, W->W
1965 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1966 #
1967 config WEAK_ORDERING
1968 bool
1969
1970 #
1971 # CPU may reorder reads and writes beyond LL/SC
1972 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1973 #
1974 config WEAK_REORDERING_BEYOND_LLSC
1975 bool
1976 endmenu
1977
1978 #
1979 # These two indicate any level of the MIPS32 and MIPS64 architecture
1980 #
1981 config CPU_MIPS32
1982 bool
1983 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1984
1985 config CPU_MIPS64
1986 bool
1987 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1988
1989 #
1990 # These two indicate the revision of the architecture, either Release 1 or Release 2
1991 #
1992 config CPU_MIPSR1
1993 bool
1994 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1995
1996 config CPU_MIPSR2
1997 bool
1998 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1999 select CPU_HAS_RIXI
2000 select MIPS_SPRAM
2001
2002 config CPU_MIPSR6
2003 bool
2004 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2005 select CPU_HAS_RIXI
2006 select HAVE_ARCH_BITREVERSE
2007 select MIPS_ASID_BITS_VARIABLE
2008 select MIPS_SPRAM
2009
2010 config EVA
2011 bool
2012
2013 config XPA
2014 bool
2015
2016 config SYS_SUPPORTS_32BIT_KERNEL
2017 bool
2018 config SYS_SUPPORTS_64BIT_KERNEL
2019 bool
2020 config CPU_SUPPORTS_32BIT_KERNEL
2021 bool
2022 config CPU_SUPPORTS_64BIT_KERNEL
2023 bool
2024 config CPU_SUPPORTS_CPUFREQ
2025 bool
2026 config CPU_SUPPORTS_ADDRWINCFG
2027 bool
2028 config CPU_SUPPORTS_HUGEPAGES
2029 bool
2030 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2031 bool
2032 config MIPS_PGD_C0_CONTEXT
2033 bool
2034 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
2035
2036 #
2037 # Set to y for ptrace access to watch registers.
2038 #
2039 config HARDWARE_WATCHPOINTS
2040 bool
2041 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2042
2043 menu "Kernel type"
2044
2045 choice
2046 prompt "Kernel code model"
2047 help
2048 You should only select this option if you have a workload that
2049 actually benefits from 64-bit processing or if your machine has
2050 large memory. You will only be presented a single option in this
2051 menu if your system does not support both 32-bit and 64-bit kernels.
2052
2053 config 32BIT
2054 bool "32-bit kernel"
2055 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2056 select TRAD_SIGNALS
2057 help
2058 Select this option if you want to build a 32-bit kernel.
2059
2060 config 64BIT
2061 bool "64-bit kernel"
2062 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2063 help
2064 Select this option if you want to build a 64-bit kernel.
2065
2066 endchoice
2067
2068 config KVM_GUEST
2069 bool "KVM Guest Kernel"
2070 depends on BROKEN_ON_SMP
2071 help
2072 Select this option if building a guest kernel for KVM (Trap & Emulate)
2073 mode.
2074
2075 config KVM_GUEST_TIMER_FREQ
2076 int "Count/Compare Timer Frequency (MHz)"
2077 depends on KVM_GUEST
2078 default 100
2079 help
2080 Set this to non-zero if building a guest kernel for KVM to skip RTC
2081 emulation when determining guest CPU Frequency. Instead, the guest's
2082 timer frequency is specified directly.
2083
2084 config MIPS_VA_BITS_48
2085 bool "48 bits virtual memory"
2086 depends on 64BIT
2087 help
2088 Support a maximum at least 48 bits of application virtual memory.
2089 Default is 40 bits or less, depending on the CPU.
2090 This option result in a small memory overhead for page tables.
2091 This option is only supported with 16k and 64k page sizes.
2092 If unsure, say N.
2093
2094 choice
2095 prompt "Kernel page size"
2096 default PAGE_SIZE_4KB
2097
2098 config PAGE_SIZE_4KB
2099 bool "4kB"
2100 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2101 depends on !MIPS_VA_BITS_48
2102 help
2103 This option select the standard 4kB Linux page size. On some
2104 R3000-family processors this is the only available page size. Using
2105 4kB page size will minimize memory consumption and is therefore
2106 recommended for low memory systems.
2107
2108 config PAGE_SIZE_8KB
2109 bool "8kB"
2110 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2111 depends on !MIPS_VA_BITS_48
2112 help
2113 Using 8kB page size will result in higher performance kernel at
2114 the price of higher memory consumption. This option is available
2115 only on R8000 and cnMIPS processors. Note that you will need a
2116 suitable Linux distribution to support this.
2117
2118 config PAGE_SIZE_16KB
2119 bool "16kB"
2120 depends on !CPU_R3000 && !CPU_TX39XX
2121 help
2122 Using 16kB page size will result in higher performance kernel at
2123 the price of higher memory consumption. This option is available on
2124 all non-R3000 family processors. Note that you will need a suitable
2125 Linux distribution to support this.
2126
2127 config PAGE_SIZE_32KB
2128 bool "32kB"
2129 depends on CPU_CAVIUM_OCTEON
2130 depends on !MIPS_VA_BITS_48
2131 help
2132 Using 32kB page size will result in higher performance kernel at
2133 the price of higher memory consumption. This option is available
2134 only on cnMIPS cores. Note that you will need a suitable Linux
2135 distribution to support this.
2136
2137 config PAGE_SIZE_64KB
2138 bool "64kB"
2139 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2140 help
2141 Using 64kB page size will result in higher performance kernel at
2142 the price of higher memory consumption. This option is available on
2143 all non-R3000 family processor. Not that at the time of this
2144 writing this option is still high experimental.
2145
2146 endchoice
2147
2148 config FORCE_MAX_ZONEORDER
2149 int "Maximum zone order"
2150 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2151 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2152 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2153 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2154 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2155 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2156 range 11 64
2157 default "11"
2158 help
2159 The kernel memory allocator divides physically contiguous memory
2160 blocks into "zones", where each zone is a power of two number of
2161 pages. This option selects the largest power of two that the kernel
2162 keeps in the memory allocator. If you need to allocate very large
2163 blocks of physically contiguous memory, then you may need to
2164 increase this value.
2165
2166 This config option is actually maximum order plus one. For example,
2167 a value of 11 means that the largest free memory block is 2^10 pages.
2168
2169 The page size is not necessarily 4KB. Keep this in mind
2170 when choosing a value for this option.
2171
2172 config BOARD_SCACHE
2173 bool
2174
2175 config IP22_CPU_SCACHE
2176 bool
2177 select BOARD_SCACHE
2178
2179 #
2180 # Support for a MIPS32 / MIPS64 style S-caches
2181 #
2182 config MIPS_CPU_SCACHE
2183 bool
2184 select BOARD_SCACHE
2185
2186 config R5000_CPU_SCACHE
2187 bool
2188 select BOARD_SCACHE
2189
2190 config RM7000_CPU_SCACHE
2191 bool
2192 select BOARD_SCACHE
2193
2194 config SIBYTE_DMA_PAGEOPS
2195 bool "Use DMA to clear/copy pages"
2196 depends on CPU_SB1
2197 help
2198 Instead of using the CPU to zero and copy pages, use a Data Mover
2199 channel. These DMA channels are otherwise unused by the standard
2200 SiByte Linux port. Seems to give a small performance benefit.
2201
2202 config CPU_HAS_PREFETCH
2203 bool
2204
2205 config CPU_GENERIC_DUMP_TLB
2206 bool
2207 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2208
2209 config CPU_R4K_FPU
2210 bool
2211 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2212
2213 config CPU_R4K_CACHE_TLB
2214 bool
2215 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2216
2217 config MIPS_MT_SMP
2218 bool "MIPS MT SMP support (1 TC on each available VPE)"
2219 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2220 select CPU_MIPSR2_IRQ_VI
2221 select CPU_MIPSR2_IRQ_EI
2222 select SYNC_R4K
2223 select MIPS_MT
2224 select SMP
2225 select SMP_UP
2226 select SYS_SUPPORTS_SMP
2227 select SYS_SUPPORTS_SCHED_SMT
2228 select MIPS_PERF_SHARED_TC_COUNTERS
2229 help
2230 This is a kernel model which is known as SMVP. This is supported
2231 on cores with the MT ASE and uses the available VPEs to implement
2232 virtual processors which supports SMP. This is equivalent to the
2233 Intel Hyperthreading feature. For further information go to
2234 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2235
2236 config MIPS_MT
2237 bool
2238
2239 config SCHED_SMT
2240 bool "SMT (multithreading) scheduler support"
2241 depends on SYS_SUPPORTS_SCHED_SMT
2242 default n
2243 help
2244 SMT scheduler support improves the CPU scheduler's decision making
2245 when dealing with MIPS MT enabled cores at a cost of slightly
2246 increased overhead in some places. If unsure say N here.
2247
2248 config SYS_SUPPORTS_SCHED_SMT
2249 bool
2250
2251 config SYS_SUPPORTS_MULTITHREADING
2252 bool
2253
2254 config MIPS_MT_FPAFF
2255 bool "Dynamic FPU affinity for FP-intensive threads"
2256 default y
2257 depends on MIPS_MT_SMP
2258
2259 config MIPSR2_TO_R6_EMULATOR
2260 bool "MIPS R2-to-R6 emulator"
2261 depends on CPU_MIPSR6 && !SMP
2262 default y
2263 help
2264 Choose this option if you want to run non-R6 MIPS userland code.
2265 Even if you say 'Y' here, the emulator will still be disabled by
2266 default. You can enable it using the 'mipsr2emu' kernel option.
2267 The only reason this is a build-time option is to save ~14K from the
2268 final kernel image.
2269 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2270 depends on SMP && CPU_MIPSR6
2271
2272 config MIPS_VPE_LOADER
2273 bool "VPE loader support."
2274 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2275 select CPU_MIPSR2_IRQ_VI
2276 select CPU_MIPSR2_IRQ_EI
2277 select MIPS_MT
2278 help
2279 Includes a loader for loading an elf relocatable object
2280 onto another VPE and running it.
2281
2282 config MIPS_VPE_LOADER_CMP
2283 bool
2284 default "y"
2285 depends on MIPS_VPE_LOADER && MIPS_CMP
2286
2287 config MIPS_VPE_LOADER_MT
2288 bool
2289 default "y"
2290 depends on MIPS_VPE_LOADER && !MIPS_CMP
2291
2292 config MIPS_VPE_LOADER_TOM
2293 bool "Load VPE program into memory hidden from linux"
2294 depends on MIPS_VPE_LOADER
2295 default y
2296 help
2297 The loader can use memory that is present but has been hidden from
2298 Linux using the kernel command line option "mem=xxMB". It's up to
2299 you to ensure the amount you put in the option and the space your
2300 program requires is less or equal to the amount physically present.
2301
2302 config MIPS_VPE_APSP_API
2303 bool "Enable support for AP/SP API (RTLX)"
2304 depends on MIPS_VPE_LOADER
2305 help
2306
2307 config MIPS_VPE_APSP_API_CMP
2308 bool
2309 default "y"
2310 depends on MIPS_VPE_APSP_API && MIPS_CMP
2311
2312 config MIPS_VPE_APSP_API_MT
2313 bool
2314 default "y"
2315 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2316
2317 config MIPS_CMP
2318 bool "MIPS CMP framework support (DEPRECATED)"
2319 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2320 select SMP
2321 select SYNC_R4K
2322 select SYS_SUPPORTS_SMP
2323 select WEAK_ORDERING
2324 default n
2325 help
2326 Select this if you are using a bootloader which implements the "CMP
2327 framework" protocol (ie. YAMON) and want your kernel to make use of
2328 its ability to start secondary CPUs.
2329
2330 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2331 instead of this.
2332
2333 config MIPS_CPS
2334 bool "MIPS Coherent Processing System support"
2335 depends on SYS_SUPPORTS_MIPS_CPS
2336 select MIPS_CM
2337 select MIPS_CPC
2338 select MIPS_CPS_PM if HOTPLUG_CPU
2339 select SMP
2340 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2341 select SYS_SUPPORTS_HOTPLUG_CPU
2342 select SYS_SUPPORTS_SMP
2343 select WEAK_ORDERING
2344 help
2345 Select this if you wish to run an SMP kernel across multiple cores
2346 within a MIPS Coherent Processing System. When this option is
2347 enabled the kernel will probe for other cores and boot them with
2348 no external assistance. It is safe to enable this when hardware
2349 support is unavailable.
2350
2351 config MIPS_CPS_PM
2352 depends on MIPS_CPS
2353 select MIPS_CPC
2354 bool
2355
2356 config MIPS_CM
2357 bool
2358
2359 config MIPS_CPC
2360 bool
2361
2362 config SB1_PASS_2_WORKAROUNDS
2363 bool
2364 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2365 default y
2366
2367 config SB1_PASS_2_1_WORKAROUNDS
2368 bool
2369 depends on CPU_SB1 && CPU_SB1_PASS_2
2370 default y
2371
2372
2373 config ARCH_PHYS_ADDR_T_64BIT
2374 bool
2375
2376 choice
2377 prompt "SmartMIPS or microMIPS ASE support"
2378
2379 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2380 bool "None"
2381 help
2382 Select this if you want neither microMIPS nor SmartMIPS support
2383
2384 config CPU_HAS_SMARTMIPS
2385 depends on SYS_SUPPORTS_SMARTMIPS
2386 bool "SmartMIPS"
2387 help
2388 SmartMIPS is a extension of the MIPS32 architecture aimed at
2389 increased security at both hardware and software level for
2390 smartcards. Enabling this option will allow proper use of the
2391 SmartMIPS instructions by Linux applications. However a kernel with
2392 this option will not work on a MIPS core without SmartMIPS core. If
2393 you don't know you probably don't have SmartMIPS and should say N
2394 here.
2395
2396 config CPU_MICROMIPS
2397 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2398 bool "microMIPS"
2399 help
2400 When this option is enabled the kernel will be built using the
2401 microMIPS ISA
2402
2403 endchoice
2404
2405 config CPU_HAS_MSA
2406 bool "Support for the MIPS SIMD Architecture"
2407 depends on CPU_SUPPORTS_MSA
2408 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2409 help
2410 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2411 and a set of SIMD instructions to operate on them. When this option
2412 is enabled the kernel will support allocating & switching MSA
2413 vector register contexts. If you know that your kernel will only be
2414 running on CPUs which do not support MSA or that your userland will
2415 not be making use of it then you may wish to say N here to reduce
2416 the size & complexity of your kernel.
2417
2418 If unsure, say Y.
2419
2420 config CPU_HAS_WB
2421 bool
2422
2423 config XKS01
2424 bool
2425
2426 config CPU_HAS_RIXI
2427 bool
2428
2429 #
2430 # Vectored interrupt mode is an R2 feature
2431 #
2432 config CPU_MIPSR2_IRQ_VI
2433 bool
2434
2435 #
2436 # Extended interrupt mode is an R2 feature
2437 #
2438 config CPU_MIPSR2_IRQ_EI
2439 bool
2440
2441 config CPU_HAS_SYNC
2442 bool
2443 depends on !CPU_R3000
2444 default y
2445
2446 #
2447 # CPU non-features
2448 #
2449 config CPU_DADDI_WORKAROUNDS
2450 bool
2451
2452 config CPU_R4000_WORKAROUNDS
2453 bool
2454 select CPU_R4400_WORKAROUNDS
2455
2456 config CPU_R4400_WORKAROUNDS
2457 bool
2458
2459 config MIPS_ASID_SHIFT
2460 int
2461 default 6 if CPU_R3000 || CPU_TX39XX
2462 default 4 if CPU_R8000
2463 default 0
2464
2465 config MIPS_ASID_BITS
2466 int
2467 default 0 if MIPS_ASID_BITS_VARIABLE
2468 default 6 if CPU_R3000 || CPU_TX39XX
2469 default 8
2470
2471 config MIPS_ASID_BITS_VARIABLE
2472 bool
2473
2474 #
2475 # - Highmem only makes sense for the 32-bit kernel.
2476 # - The current highmem code will only work properly on physically indexed
2477 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2478 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2479 # moment we protect the user and offer the highmem option only on machines
2480 # where it's known to be safe. This will not offer highmem on a few systems
2481 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2482 # indexed CPUs but we're playing safe.
2483 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2484 # know they might have memory configurations that could make use of highmem
2485 # support.
2486 #
2487 config HIGHMEM
2488 bool "High Memory Support"
2489 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2490
2491 config CPU_SUPPORTS_HIGHMEM
2492 bool
2493
2494 config SYS_SUPPORTS_HIGHMEM
2495 bool
2496
2497 config SYS_SUPPORTS_SMARTMIPS
2498 bool
2499
2500 config SYS_SUPPORTS_MICROMIPS
2501 bool
2502
2503 config SYS_SUPPORTS_MIPS16
2504 bool
2505 help
2506 This option must be set if a kernel might be executed on a MIPS16-
2507 enabled CPU even if MIPS16 is not actually being used. In other
2508 words, it makes the kernel MIPS16-tolerant.
2509
2510 config CPU_SUPPORTS_MSA
2511 bool
2512
2513 config ARCH_FLATMEM_ENABLE
2514 def_bool y
2515 depends on !NUMA && !CPU_LOONGSON2
2516
2517 config ARCH_DISCONTIGMEM_ENABLE
2518 bool
2519 default y if SGI_IP27
2520 help
2521 Say Y to support efficient handling of discontiguous physical memory,
2522 for architectures which are either NUMA (Non-Uniform Memory Access)
2523 or have huge holes in the physical address space for other reasons.
2524 See <file:Documentation/vm/numa> for more.
2525
2526 config ARCH_SPARSEMEM_ENABLE
2527 bool
2528 select SPARSEMEM_STATIC
2529
2530 config NUMA
2531 bool "NUMA Support"
2532 depends on SYS_SUPPORTS_NUMA
2533 help
2534 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2535 Access). This option improves performance on systems with more
2536 than two nodes; on two node systems it is generally better to
2537 leave it disabled; on single node systems disable this option
2538 disabled.
2539
2540 config SYS_SUPPORTS_NUMA
2541 bool
2542
2543 config RELOCATABLE
2544 bool "Relocatable kernel"
2545 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6)
2546 help
2547 This builds a kernel image that retains relocation information
2548 so it can be loaded someplace besides the default 1MB.
2549 The relocations make the kernel binary about 15% larger,
2550 but are discarded at runtime
2551
2552 config RELOCATION_TABLE_SIZE
2553 hex "Relocation table size"
2554 depends on RELOCATABLE
2555 range 0x0 0x01000000
2556 default "0x00100000"
2557 ---help---
2558 A table of relocation data will be appended to the kernel binary
2559 and parsed at boot to fix up the relocated kernel.
2560
2561 This option allows the amount of space reserved for the table to be
2562 adjusted, although the default of 1Mb should be ok in most cases.
2563
2564 The build will fail and a valid size suggested if this is too small.
2565
2566 If unsure, leave at the default value.
2567
2568 config RANDOMIZE_BASE
2569 bool "Randomize the address of the kernel image"
2570 depends on RELOCATABLE
2571 ---help---
2572 Randomizes the physical and virtual address at which the
2573 kernel image is loaded, as a security feature that
2574 deters exploit attempts relying on knowledge of the location
2575 of kernel internals.
2576
2577 Entropy is generated using any coprocessor 0 registers available.
2578
2579 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2580
2581 If unsure, say N.
2582
2583 config RANDOMIZE_BASE_MAX_OFFSET
2584 hex "Maximum kASLR offset" if EXPERT
2585 depends on RANDOMIZE_BASE
2586 range 0x0 0x40000000 if EVA || 64BIT
2587 range 0x0 0x08000000
2588 default "0x01000000"
2589 ---help---
2590 When kASLR is active, this provides the maximum offset that will
2591 be applied to the kernel image. It should be set according to the
2592 amount of physical RAM available in the target system minus
2593 PHYSICAL_START and must be a power of 2.
2594
2595 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2596 EVA or 64-bit. The default is 16Mb.
2597
2598 config NODES_SHIFT
2599 int
2600 default "6"
2601 depends on NEED_MULTIPLE_NODES
2602
2603 config HW_PERF_EVENTS
2604 bool "Enable hardware performance counter support for perf events"
2605 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2606 default y
2607 help
2608 Enable hardware performance counter support for perf events. If
2609 disabled, perf events will use software events only.
2610
2611 source "mm/Kconfig"
2612
2613 config SMP
2614 bool "Multi-Processing support"
2615 depends on SYS_SUPPORTS_SMP
2616 help
2617 This enables support for systems with more than one CPU. If you have
2618 a system with only one CPU, say N. If you have a system with more
2619 than one CPU, say Y.
2620
2621 If you say N here, the kernel will run on uni- and multiprocessor
2622 machines, but will use only one CPU of a multiprocessor machine. If
2623 you say Y here, the kernel will run on many, but not all,
2624 uniprocessor machines. On a uniprocessor machine, the kernel
2625 will run faster if you say N here.
2626
2627 People using multiprocessor machines who say Y here should also say
2628 Y to "Enhanced Real Time Clock Support", below.
2629
2630 See also the SMP-HOWTO available at
2631 <http://www.tldp.org/docs.html#howto>.
2632
2633 If you don't know what to do here, say N.
2634
2635 config SMP_UP
2636 bool
2637
2638 config SYS_SUPPORTS_MIPS_CMP
2639 bool
2640
2641 config SYS_SUPPORTS_MIPS_CPS
2642 bool
2643
2644 config SYS_SUPPORTS_SMP
2645 bool
2646
2647 config NR_CPUS_DEFAULT_4
2648 bool
2649
2650 config NR_CPUS_DEFAULT_8
2651 bool
2652
2653 config NR_CPUS_DEFAULT_16
2654 bool
2655
2656 config NR_CPUS_DEFAULT_32
2657 bool
2658
2659 config NR_CPUS_DEFAULT_64
2660 bool
2661
2662 config NR_CPUS
2663 int "Maximum number of CPUs (2-256)"
2664 range 2 256
2665 depends on SMP
2666 default "4" if NR_CPUS_DEFAULT_4
2667 default "8" if NR_CPUS_DEFAULT_8
2668 default "16" if NR_CPUS_DEFAULT_16
2669 default "32" if NR_CPUS_DEFAULT_32
2670 default "64" if NR_CPUS_DEFAULT_64
2671 help
2672 This allows you to specify the maximum number of CPUs which this
2673 kernel will support. The maximum supported value is 32 for 32-bit
2674 kernel and 64 for 64-bit kernels; the minimum value which makes
2675 sense is 1 for Qemu (useful only for kernel debugging purposes)
2676 and 2 for all others.
2677
2678 This is purely to save memory - each supported CPU adds
2679 approximately eight kilobytes to the kernel image. For best
2680 performance should round up your number of processors to the next
2681 power of two.
2682
2683 config MIPS_PERF_SHARED_TC_COUNTERS
2684 bool
2685
2686 #
2687 # Timer Interrupt Frequency Configuration
2688 #
2689
2690 choice
2691 prompt "Timer frequency"
2692 default HZ_250
2693 help
2694 Allows the configuration of the timer frequency.
2695
2696 config HZ_24
2697 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2698
2699 config HZ_48
2700 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2701
2702 config HZ_100
2703 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2704
2705 config HZ_128
2706 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2707
2708 config HZ_250
2709 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2710
2711 config HZ_256
2712 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2713
2714 config HZ_1000
2715 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2716
2717 config HZ_1024
2718 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2719
2720 endchoice
2721
2722 config SYS_SUPPORTS_24HZ
2723 bool
2724
2725 config SYS_SUPPORTS_48HZ
2726 bool
2727
2728 config SYS_SUPPORTS_100HZ
2729 bool
2730
2731 config SYS_SUPPORTS_128HZ
2732 bool
2733
2734 config SYS_SUPPORTS_250HZ
2735 bool
2736
2737 config SYS_SUPPORTS_256HZ
2738 bool
2739
2740 config SYS_SUPPORTS_1000HZ
2741 bool
2742
2743 config SYS_SUPPORTS_1024HZ
2744 bool
2745
2746 config SYS_SUPPORTS_ARBIT_HZ
2747 bool
2748 default y if !SYS_SUPPORTS_24HZ && \
2749 !SYS_SUPPORTS_48HZ && \
2750 !SYS_SUPPORTS_100HZ && \
2751 !SYS_SUPPORTS_128HZ && \
2752 !SYS_SUPPORTS_250HZ && \
2753 !SYS_SUPPORTS_256HZ && \
2754 !SYS_SUPPORTS_1000HZ && \
2755 !SYS_SUPPORTS_1024HZ
2756
2757 config HZ
2758 int
2759 default 24 if HZ_24
2760 default 48 if HZ_48
2761 default 100 if HZ_100
2762 default 128 if HZ_128
2763 default 250 if HZ_250
2764 default 256 if HZ_256
2765 default 1000 if HZ_1000
2766 default 1024 if HZ_1024
2767
2768 config SCHED_HRTICK
2769 def_bool HIGH_RES_TIMERS
2770
2771 source "kernel/Kconfig.preempt"
2772
2773 config KEXEC
2774 bool "Kexec system call"
2775 select KEXEC_CORE
2776 help
2777 kexec is a system call that implements the ability to shutdown your
2778 current kernel, and to start another kernel. It is like a reboot
2779 but it is independent of the system firmware. And like a reboot
2780 you can start any kernel with it, not just Linux.
2781
2782 The name comes from the similarity to the exec system call.
2783
2784 It is an ongoing process to be certain the hardware in a machine
2785 is properly shutdown, so do not be surprised if this code does not
2786 initially work for you. As of this writing the exact hardware
2787 interface is strongly in flux, so no good recommendation can be
2788 made.
2789
2790 config CRASH_DUMP
2791 bool "Kernel crash dumps"
2792 help
2793 Generate crash dump after being started by kexec.
2794 This should be normally only set in special crash dump kernels
2795 which are loaded in the main kernel with kexec-tools into
2796 a specially reserved region and then later executed after
2797 a crash by kdump/kexec. The crash dump kernel must be compiled
2798 to a memory address not used by the main kernel or firmware using
2799 PHYSICAL_START.
2800
2801 config PHYSICAL_START
2802 hex "Physical address where the kernel is loaded"
2803 default "0xffffffff84000000" if 64BIT
2804 default "0x84000000" if 32BIT
2805 depends on CRASH_DUMP
2806 help
2807 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2808 If you plan to use kernel for capturing the crash dump change
2809 this value to start of the reserved region (the "X" value as
2810 specified in the "crashkernel=YM@XM" command line boot parameter
2811 passed to the panic-ed kernel).
2812
2813 config SECCOMP
2814 bool "Enable seccomp to safely compute untrusted bytecode"
2815 depends on PROC_FS
2816 default y
2817 help
2818 This kernel feature is useful for number crunching applications
2819 that may need to compute untrusted bytecode during their
2820 execution. By using pipes or other transports made available to
2821 the process as file descriptors supporting the read/write
2822 syscalls, it's possible to isolate those applications in
2823 their own address space using seccomp. Once seccomp is
2824 enabled via /proc/<pid>/seccomp, it cannot be disabled
2825 and the task is only allowed to execute a few safe syscalls
2826 defined by each seccomp mode.
2827
2828 If unsure, say Y. Only embedded should say N here.
2829
2830 config MIPS_O32_FP64_SUPPORT
2831 bool "Support for O32 binaries using 64-bit FP"
2832 depends on 32BIT || MIPS32_O32
2833 help
2834 When this is enabled, the kernel will support use of 64-bit floating
2835 point registers with binaries using the O32 ABI along with the
2836 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2837 32-bit MIPS systems this support is at the cost of increasing the
2838 size and complexity of the compiled FPU emulator. Thus if you are
2839 running a MIPS32 system and know that none of your userland binaries
2840 will require 64-bit floating point, you may wish to reduce the size
2841 of your kernel & potentially improve FP emulation performance by
2842 saying N here.
2843
2844 Although binutils currently supports use of this flag the details
2845 concerning its effect upon the O32 ABI in userland are still being
2846 worked on. In order to avoid userland becoming dependant upon current
2847 behaviour before the details have been finalised, this option should
2848 be considered experimental and only enabled by those working upon
2849 said details.
2850
2851 If unsure, say N.
2852
2853 config USE_OF
2854 bool
2855 select OF
2856 select OF_EARLY_FLATTREE
2857 select IRQ_DOMAIN
2858
2859 config BUILTIN_DTB
2860 bool
2861
2862 choice
2863 prompt "Kernel appended dtb support" if USE_OF
2864 default MIPS_NO_APPENDED_DTB
2865
2866 config MIPS_NO_APPENDED_DTB
2867 bool "None"
2868 help
2869 Do not enable appended dtb support.
2870
2871 config MIPS_ELF_APPENDED_DTB
2872 bool "vmlinux"
2873 help
2874 With this option, the boot code will look for a device tree binary
2875 DTB) included in the vmlinux ELF section .appended_dtb. By default
2876 it is empty and the DTB can be appended using binutils command
2877 objcopy:
2878
2879 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2880
2881 This is meant as a backward compatiblity convenience for those
2882 systems with a bootloader that can't be upgraded to accommodate
2883 the documented boot protocol using a device tree.
2884
2885 config MIPS_RAW_APPENDED_DTB
2886 bool "vmlinux.bin"
2887 help
2888 With this option, the boot code will look for a device tree binary
2889 DTB) appended to raw vmlinux.bin (without decompressor).
2890 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2891
2892 This is meant as a backward compatibility convenience for those
2893 systems with a bootloader that can't be upgraded to accommodate
2894 the documented boot protocol using a device tree.
2895
2896 Beware that there is very little in terms of protection against
2897 this option being confused by leftover garbage in memory that might
2898 look like a DTB header after a reboot if no actual DTB is appended
2899 to vmlinux.bin. Do not leave this option active in a production kernel
2900 if you don't intend to always append a DTB.
2901
2902 config MIPS_ZBOOT_APPENDED_DTB
2903 bool "vmlinuz.bin"
2904 depends on SYS_SUPPORTS_ZBOOT
2905 help
2906 With this option, the boot code will look for a device tree binary
2907 DTB) appended to raw vmlinuz.bin (with decompressor).
2908 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2909
2910 This is meant as a backward compatibility convenience for those
2911 systems with a bootloader that can't be upgraded to accommodate
2912 the documented boot protocol using a device tree.
2913
2914 Beware that there is very little in terms of protection against
2915 this option being confused by leftover garbage in memory that might
2916 look like a DTB header after a reboot if no actual DTB is appended
2917 to vmlinuz.bin. Do not leave this option active in a production kernel
2918 if you don't intend to always append a DTB.
2919 endchoice
2920
2921 choice
2922 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2923 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2924 !MIPS_MALTA && !MIPS_SEAD3 && \
2925 !CAVIUM_OCTEON_SOC
2926 default MIPS_CMDLINE_FROM_BOOTLOADER
2927
2928 config MIPS_CMDLINE_FROM_DTB
2929 depends on USE_OF
2930 bool "Dtb kernel arguments if available"
2931
2932 config MIPS_CMDLINE_DTB_EXTEND
2933 depends on USE_OF
2934 bool "Extend dtb kernel arguments with bootloader arguments"
2935
2936 config MIPS_CMDLINE_FROM_BOOTLOADER
2937 bool "Bootloader kernel arguments if available"
2938
2939 config MIPS_CMDLINE_BUILTIN_EXTEND
2940 depends on CMDLINE_BOOL
2941 bool "Extend builtin kernel arguments with bootloader arguments"
2942 endchoice
2943
2944 endmenu
2945
2946 config LOCKDEP_SUPPORT
2947 bool
2948 default y
2949
2950 config STACKTRACE_SUPPORT
2951 bool
2952 default y
2953
2954 config HAVE_LATENCYTOP_SUPPORT
2955 bool
2956 default y
2957
2958 config PGTABLE_LEVELS
2959 int
2960 default 3 if 64BIT && !PAGE_SIZE_64KB
2961 default 2
2962
2963 source "init/Kconfig"
2964
2965 source "kernel/Kconfig.freezer"
2966
2967 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2968
2969 config HW_HAS_EISA
2970 bool
2971 config HW_HAS_PCI
2972 bool
2973
2974 config PCI
2975 bool "Support for PCI controller"
2976 depends on HW_HAS_PCI
2977 select PCI_DOMAINS
2978 select NO_GENERIC_PCI_IOPORT_MAP
2979 help
2980 Find out whether you have a PCI motherboard. PCI is the name of a
2981 bus system, i.e. the way the CPU talks to the other stuff inside
2982 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2983 say Y, otherwise N.
2984
2985 config HT_PCI
2986 bool "Support for HT-linked PCI"
2987 default y
2988 depends on CPU_LOONGSON3
2989 select PCI
2990 select PCI_DOMAINS
2991 help
2992 Loongson family machines use Hyper-Transport bus for inter-core
2993 connection and device connection. The PCI bus is a subordinate
2994 linked at HT. Choose Y for Loongson-3 based machines.
2995
2996 config PCI_DOMAINS
2997 bool
2998
2999 source "drivers/pci/Kconfig"
3000
3001 #
3002 # ISA support is now enabled via select. Too many systems still have the one
3003 # or other ISA chip on the board that users don't know about so don't expect
3004 # users to choose the right thing ...
3005 #
3006 config ISA
3007 bool
3008
3009 config EISA
3010 bool "EISA support"
3011 depends on HW_HAS_EISA
3012 select ISA
3013 select GENERIC_ISA_DMA
3014 ---help---
3015 The Extended Industry Standard Architecture (EISA) bus was
3016 developed as an open alternative to the IBM MicroChannel bus.
3017
3018 The EISA bus provided some of the features of the IBM MicroChannel
3019 bus while maintaining backward compatibility with cards made for
3020 the older ISA bus. The EISA bus saw limited use between 1988 and
3021 1995 when it was made obsolete by the PCI bus.
3022
3023 Say Y here if you are building a kernel for an EISA-based machine.
3024
3025 Otherwise, say N.
3026
3027 source "drivers/eisa/Kconfig"
3028
3029 config TC
3030 bool "TURBOchannel support"
3031 depends on MACH_DECSTATION
3032 help
3033 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3034 processors. TURBOchannel programming specifications are available
3035 at:
3036 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3037 and:
3038 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3039 Linux driver support status is documented at:
3040 <http://www.linux-mips.org/wiki/DECstation>
3041
3042 config MMU
3043 bool
3044 default y
3045
3046 config I8253
3047 bool
3048 select CLKSRC_I8253
3049 select CLKEVT_I8253
3050 select MIPS_EXTERNAL_TIMER
3051
3052 config ZONE_DMA
3053 bool
3054
3055 config ZONE_DMA32
3056 bool
3057
3058 source "drivers/pcmcia/Kconfig"
3059
3060 config RAPIDIO
3061 tristate "RapidIO support"
3062 depends on PCI
3063 default n
3064 help
3065 If you say Y here, the kernel will include drivers and
3066 infrastructure code to support RapidIO interconnect devices.
3067
3068 source "drivers/rapidio/Kconfig"
3069
3070 endmenu
3071
3072 menu "Executable file formats"
3073
3074 source "fs/Kconfig.binfmt"
3075
3076 config TRAD_SIGNALS
3077 bool
3078
3079 config MIPS32_COMPAT
3080 bool
3081
3082 config COMPAT
3083 bool
3084
3085 config SYSVIPC_COMPAT
3086 bool
3087
3088 config MIPS32_O32
3089 bool "Kernel support for o32 binaries"
3090 depends on 64BIT
3091 select ARCH_WANT_OLD_COMPAT_IPC
3092 select COMPAT
3093 select MIPS32_COMPAT
3094 select SYSVIPC_COMPAT if SYSVIPC
3095 help
3096 Select this option if you want to run o32 binaries. These are pure
3097 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3098 existing binaries are in this format.
3099
3100 If unsure, say Y.
3101
3102 config MIPS32_N32
3103 bool "Kernel support for n32 binaries"
3104 depends on 64BIT
3105 select COMPAT
3106 select MIPS32_COMPAT
3107 select SYSVIPC_COMPAT if SYSVIPC
3108 help
3109 Select this option if you want to run n32 binaries. These are
3110 64-bit binaries using 32-bit quantities for addressing and certain
3111 data that would normally be 64-bit. They are used in special
3112 cases.
3113
3114 If unsure, say N.
3115
3116 config BINFMT_ELF32
3117 bool
3118 default y if MIPS32_O32 || MIPS32_N32
3119
3120 endmenu
3121
3122 menu "Power management options"
3123
3124 config ARCH_HIBERNATION_POSSIBLE
3125 def_bool y
3126 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3127
3128 config ARCH_SUSPEND_POSSIBLE
3129 def_bool y
3130 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3131
3132 source "kernel/power/Kconfig"
3133
3134 endmenu
3135
3136 config MIPS_EXTERNAL_TIMER
3137 bool
3138
3139 menu "CPU Power Management"
3140
3141 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3142 source "drivers/cpufreq/Kconfig"
3143 endif
3144
3145 source "drivers/cpuidle/Kconfig"
3146
3147 endmenu
3148
3149 source "net/Kconfig"
3150
3151 source "drivers/Kconfig"
3152
3153 source "drivers/firmware/Kconfig"
3154
3155 source "fs/Kconfig"
3156
3157 source "arch/mips/Kconfig.debug"
3158
3159 source "security/Kconfig"
3160
3161 source "crypto/Kconfig"
3162
3163 source "lib/Kconfig"
3164
3165 source "arch/mips/kvm/Kconfig"
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