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