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1config MIPS
2 bool
3 default y
4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
11 select HAVE_IDE
12 select HAVE_OPROFILE
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
15 select HAVE_ARCH_KGDB
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
24 select HAVE_KPROBES
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
34 select HAVE_DMA_CONTIGUOUS
35 select HAVE_DMA_API_DEBUG
36 select GENERIC_IRQ_PROBE
37 select GENERIC_IRQ_SHOW
38 select GENERIC_PCI_IOMAP
39 select HAVE_ARCH_JUMP_LABEL
40 select ARCH_WANT_IPC_PARSE_VERSION
41 select IRQ_FORCED_THREADING
42 select HAVE_MEMBLOCK
43 select HAVE_MEMBLOCK_NODE_MAP
44 select ARCH_DISCARD_MEMBLOCK
45 select GENERIC_SMP_IDLE_THREAD
46 select BUILDTIME_EXTABLE_SORT
47 select GENERIC_CLOCKEVENTS
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_CMOS_UPDATE
50 select HAVE_MOD_ARCH_SPECIFIC
51 select VIRT_TO_BUS
52 select MODULES_USE_ELF_REL if MODULES
53 select MODULES_USE_ELF_RELA if MODULES && 64BIT
54 select CLONE_BACKWARDS
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_CC_STACKPROTECTOR
57 select CPU_PM if CPU_IDLE
58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
59 select ARCH_BINFMT_ELF_STATE
60 select SYSCTL_EXCEPTION_TRACE
61 select HAVE_VIRT_CPU_ACCOUNTING_GEN
62 select HAVE_IRQ_TIME_ACCOUNTING
63 select GENERIC_TIME_VSYSCALL
64 select ARCH_CLOCKSOURCE_DATA
65
66menu "Machine selection"
67
68choice
69 prompt "System type"
70 default SGI_IP22
71
72config MIPS_ALCHEMY
73 bool "Alchemy processor based machines"
74 select ARCH_PHYS_ADDR_T_64BIT
75 select CEVT_R4K
76 select CSRC_R4K
77 select IRQ_MIPS_CPU
78 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_APM_EMULATION
82 select ARCH_REQUIRE_GPIOLIB
83 select SYS_SUPPORTS_ZBOOT
84 select COMMON_CLK
85
86config AR7
87 bool "Texas Instruments AR7"
88 select BOOT_ELF32
89 select DMA_NONCOHERENT
90 select CEVT_R4K
91 select CSRC_R4K
92 select IRQ_MIPS_CPU
93 select NO_EXCEPT_FILL
94 select SWAP_IO_SPACE
95 select SYS_HAS_CPU_MIPS32_R1
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_LITTLE_ENDIAN
99 select SYS_SUPPORTS_MIPS16
100 select SYS_SUPPORTS_ZBOOT_UART16550
101 select ARCH_REQUIRE_GPIOLIB
102 select VLYNQ
103 select HAVE_CLK
104 help
105 Support for the Texas Instruments AR7 System-on-a-Chip
106 family: TNETD7100, 7200 and 7300.
107
108config ATH25
109 bool "Atheros AR231x/AR531x SoC support"
110 select CEVT_R4K
111 select CSRC_R4K
112 select DMA_NONCOHERENT
113 select IRQ_MIPS_CPU
114 select IRQ_DOMAIN
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_SUPPORTS_BIG_ENDIAN
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_HAS_EARLY_PRINTK
119 help
120 Support for Atheros AR231x and Atheros AR531x based boards
121
122config ATH79
123 bool "Atheros AR71XX/AR724X/AR913X based boards"
124 select ARCH_HAS_RESET_CONTROLLER
125 select ARCH_REQUIRE_GPIOLIB
126 select BOOT_RAW
127 select CEVT_R4K
128 select CSRC_R4K
129 select DMA_NONCOHERENT
130 select HAVE_CLK
131 select COMMON_CLK
132 select CLKDEV_LOOKUP
133 select IRQ_MIPS_CPU
134 select MIPS_MACHINE
135 select SYS_HAS_CPU_MIPS32_R2
136 select SYS_HAS_EARLY_PRINTK
137 select SYS_SUPPORTS_32BIT_KERNEL
138 select SYS_SUPPORTS_BIG_ENDIAN
139 select SYS_SUPPORTS_MIPS16
140 select SYS_SUPPORTS_ZBOOT
141 select USE_OF
142 help
143 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
144
145config BMIPS_GENERIC
146 bool "Broadcom Generic BMIPS kernel"
147 select BOOT_RAW
148 select NO_EXCEPT_FILL
149 select USE_OF
150 select CEVT_R4K
151 select CSRC_R4K
152 select SYNC_R4K
153 select COMMON_CLK
154 select BCM6345_L1_IRQ
155 select BCM7038_L1_IRQ
156 select BCM7120_L2_IRQ
157 select BRCMSTB_L2_IRQ
158 select IRQ_MIPS_CPU
159 select DMA_NONCOHERENT
160 select SYS_SUPPORTS_32BIT_KERNEL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_BIG_ENDIAN
163 select SYS_SUPPORTS_HIGHMEM
164 select SYS_HAS_CPU_BMIPS32_3300
165 select SYS_HAS_CPU_BMIPS4350
166 select SYS_HAS_CPU_BMIPS4380
167 select SYS_HAS_CPU_BMIPS5000
168 select SWAP_IO_SPACE
169 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
170 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173 select ARCH_WANT_OPTIONAL_GPIOLIB
174 help
175 Build a generic DT-based kernel image that boots on select
176 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
177 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
178 must be set appropriately for your board.
179
180config BCM47XX
181 bool "Broadcom BCM47XX based boards"
182 select ARCH_WANT_OPTIONAL_GPIOLIB
183 select BOOT_RAW
184 select CEVT_R4K
185 select CSRC_R4K
186 select DMA_NONCOHERENT
187 select HW_HAS_PCI
188 select IRQ_MIPS_CPU
189 select SYS_HAS_CPU_MIPS32_R1
190 select NO_EXCEPT_FILL
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_MIPS16
194 select SYS_HAS_EARLY_PRINTK
195 select USE_GENERIC_EARLY_PRINTK_8250
196 select GPIOLIB
197 select LEDS_GPIO_REGISTER
198 select BCM47XX_NVRAM
199 help
200 Support for BCM47XX based boards
201
202config BCM63XX
203 bool "Broadcom BCM63XX based boards"
204 select BOOT_RAW
205 select CEVT_R4K
206 select CSRC_R4K
207 select SYNC_R4K
208 select DMA_NONCOHERENT
209 select IRQ_MIPS_CPU
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_BIG_ENDIAN
212 select SYS_HAS_EARLY_PRINTK
213 select SWAP_IO_SPACE
214 select ARCH_REQUIRE_GPIOLIB
215 select HAVE_CLK
216 select MIPS_L1_CACHE_SHIFT_4
217 help
218 Support for BCM63XX based boards
219
220config 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
240config 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
277config 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
301config MACH_INGENIC
302 bool "Ingenic SoC based machines"
303 select SYS_SUPPORTS_32BIT_KERNEL
304 select SYS_SUPPORTS_LITTLE_ENDIAN
305 select SYS_SUPPORTS_ZBOOT_UART16550
306 select DMA_NONCOHERENT
307 select IRQ_MIPS_CPU
308 select ARCH_REQUIRE_GPIOLIB
309 select COMMON_CLK
310 select GENERIC_IRQ_CHIP
311 select BUILTIN_DTB
312 select USE_OF
313 select LIBFDT
314
315config LANTIQ
316 bool "Lantiq based platforms"
317 select DMA_NONCOHERENT
318 select IRQ_MIPS_CPU
319 select CEVT_R4K
320 select CSRC_R4K
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_SUPPORTS_32BIT_KERNEL
325 select SYS_SUPPORTS_MIPS16
326 select SYS_SUPPORTS_MULTITHREADING
327 select SYS_HAS_EARLY_PRINTK
328 select ARCH_REQUIRE_GPIOLIB
329 select SWAP_IO_SPACE
330 select BOOT_RAW
331 select CLKDEV_LOOKUP
332 select USE_OF
333 select PINCTRL
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
337
338config 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
355config 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
365config 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
378config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
381 select BOOT_ELF32
382 select BOOT_RAW
383 select CEVT_R4K
384 select CLKSRC_MIPS_GIC
385 select COMMON_CLK
386 select CSRC_R4K
387 select DMA_MAYBE_COHERENT
388 select IRQ_MIPS_CPU
389 select LIBFDT
390 select MFD_SYSCON
391 select MIPS_CPU_SCACHE
392 select MIPS_GIC
393 select PINCTRL
394 select REGULATOR
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
403 select USE_OF
404 help
405 This enables support for the IMG Pistachio SoC platform.
406
407config MACH_XILFPGA
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
410 select BOOT_ELF32
411 select BOOT_RAW
412 select BUILTIN_DTB
413 select CEVT_R4K
414 select COMMON_CLK
415 select CSRC_R4K
416 select IRQ_MIPS_CPU
417 select LIBFDT
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
424 select USE_OF
425 select USE_GENERIC_EARLY_PRINTK_8250
426 help
427 This enables support for the IMG University Program MIPSfpga platform.
428
429config MIPS_MALTA
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
432 select BOOT_ELF32
433 select BOOT_RAW
434 select BUILTIN_DTB
435 select CEVT_R4K
436 select CSRC_R4K
437 select CLKSRC_MIPS_GIC
438 select COMMON_CLK
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
442 select IRQ_MIPS_CPU
443 select MIPS_GIC
444 select HW_HAS_PCI
445 select I8253
446 select I8259
447 select MIPS_BONITO64
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
451 select MIPS_MSC
452 select SMP_UP if SMP
453 select SWAP_IO_SPACE
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
476 select USE_OF
477 select ZONE_DMA32 if 64BIT
478 select BUILTIN_DTB
479 select LIBFDT
480 help
481 This enables support for the MIPS Technologies Malta evaluation
482 board.
483
484config MACH_PIC32
485 bool "Microchip PIC32 Family"
486 help
487 This enables support for the Microchip PIC32 family of platforms.
488
489 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
490 microcontrollers.
491
492config MIPS_SEAD3
493 bool "MIPS SEAD3 board"
494 select BOOT_ELF32
495 select BOOT_RAW
496 select BUILTIN_DTB
497 select CEVT_R4K
498 select CSRC_R4K
499 select CLKSRC_MIPS_GIC
500 select COMMON_CLK
501 select CPU_MIPSR2_IRQ_VI
502 select CPU_MIPSR2_IRQ_EI
503 select DMA_NONCOHERENT
504 select IRQ_MIPS_CPU
505 select MIPS_GIC
506 select LIBFDT
507 select MIPS_MSC
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_HAS_CPU_MIPS64_R1
511 select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_64BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select SYS_SUPPORTS_SMARTMIPS
517 select SYS_SUPPORTS_MICROMIPS
518 select SYS_SUPPORTS_MIPS16
519 select USB_EHCI_BIG_ENDIAN_DESC
520 select USB_EHCI_BIG_ENDIAN_MMIO
521 select USE_OF
522 help
523 This enables support for the MIPS Technologies SEAD3 evaluation
524 board.
525
526config NEC_MARKEINS
527 bool "NEC EMMA2RH Mark-eins board"
528 select SOC_EMMA2RH
529 select HW_HAS_PCI
530 help
531 This enables support for the NEC Electronics Mark-eins boards.
532
533config MACH_VR41XX
534 bool "NEC VR4100 series based machines"
535 select CEVT_R4K
536 select CSRC_R4K
537 select SYS_HAS_CPU_VR41XX
538 select SYS_SUPPORTS_MIPS16
539 select ARCH_REQUIRE_GPIOLIB
540
541config NXP_STB220
542 bool "NXP STB220 board"
543 select SOC_PNX833X
544 help
545 Support for NXP Semiconductors STB220 Development Board.
546
547config NXP_STB225
548 bool "NXP 225 board"
549 select SOC_PNX833X
550 select SOC_PNX8335
551 help
552 Support for NXP Semiconductors STB225 Development Board.
553
554config PMC_MSP
555 bool "PMC-Sierra MSP chipsets"
556 select CEVT_R4K
557 select CSRC_R4K
558 select DMA_NONCOHERENT
559 select SWAP_IO_SPACE
560 select NO_EXCEPT_FILL
561 select BOOT_RAW
562 select SYS_HAS_CPU_MIPS32_R1
563 select SYS_HAS_CPU_MIPS32_R2
564 select SYS_SUPPORTS_32BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_MIPS16
567 select IRQ_MIPS_CPU
568 select SERIAL_8250
569 select SERIAL_8250_CONSOLE
570 select USB_EHCI_BIG_ENDIAN_MMIO
571 select USB_EHCI_BIG_ENDIAN_DESC
572 help
573 This adds support for the PMC-Sierra family of Multi-Service
574 Processor System-On-A-Chips. These parts include a number
575 of integrated peripherals, interfaces and DSPs in addition to
576 a variety of MIPS cores.
577
578config RALINK
579 bool "Ralink based machines"
580 select CEVT_R4K
581 select CSRC_R4K
582 select BOOT_RAW
583 select DMA_NONCOHERENT
584 select IRQ_MIPS_CPU
585 select USE_OF
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_LITTLE_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select SYS_HAS_EARLY_PRINTK
592 select CLKDEV_LOOKUP
593 select ARCH_HAS_RESET_CONTROLLER
594 select RESET_CONTROLLER
595
596config SGI_IP22
597 bool "SGI IP22 (Indy/Indigo2)"
598 select FW_ARC
599 select FW_ARC32
600 select BOOT_ELF32
601 select CEVT_R4K
602 select CSRC_R4K
603 select DEFAULT_SGI_PARTITION
604 select DMA_NONCOHERENT
605 select HW_HAS_EISA
606 select I8253
607 select I8259
608 select IP22_CPU_SCACHE
609 select IRQ_MIPS_CPU
610 select GENERIC_ISA_DMA_SUPPORT_BROKEN
611 select SGI_HAS_I8042
612 select SGI_HAS_INDYDOG
613 select SGI_HAS_HAL2
614 select SGI_HAS_SEEQ
615 select SGI_HAS_WD93
616 select SGI_HAS_ZILOG
617 select SWAP_IO_SPACE
618 select SYS_HAS_CPU_R4X00
619 select SYS_HAS_CPU_R5000
620 #
621 # Disable EARLY_PRINTK for now since it leads to overwritten prom
622 # memory during early boot on some machines.
623 #
624 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
625 # for a more details discussion
626 #
627 # select SYS_HAS_EARLY_PRINTK
628 select SYS_SUPPORTS_32BIT_KERNEL
629 select SYS_SUPPORTS_64BIT_KERNEL
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select MIPS_L1_CACHE_SHIFT_7
632 help
633 This are the SGI Indy, Challenge S and Indigo2, as well as certain
634 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
635 that runs on these, say Y here.
636
637config SGI_IP27
638 bool "SGI IP27 (Origin200/2000)"
639 select FW_ARC
640 select FW_ARC64
641 select BOOT_ELF64
642 select DEFAULT_SGI_PARTITION
643 select DMA_COHERENT
644 select SYS_HAS_EARLY_PRINTK
645 select HW_HAS_PCI
646 select NR_CPUS_DEFAULT_64
647 select SYS_HAS_CPU_R10000
648 select SYS_SUPPORTS_64BIT_KERNEL
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_NUMA
651 select SYS_SUPPORTS_SMP
652 select MIPS_L1_CACHE_SHIFT_7
653 help
654 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
655 workstations. To compile a Linux kernel that runs on these, say Y
656 here.
657
658config SGI_IP28
659 bool "SGI IP28 (Indigo2 R10k)"
660 select FW_ARC
661 select FW_ARC64
662 select BOOT_ELF64
663 select CEVT_R4K
664 select CSRC_R4K
665 select DEFAULT_SGI_PARTITION
666 select DMA_NONCOHERENT
667 select GENERIC_ISA_DMA_SUPPORT_BROKEN
668 select IRQ_MIPS_CPU
669 select HW_HAS_EISA
670 select I8253
671 select I8259
672 select SGI_HAS_I8042
673 select SGI_HAS_INDYDOG
674 select SGI_HAS_HAL2
675 select SGI_HAS_SEEQ
676 select SGI_HAS_WD93
677 select SGI_HAS_ZILOG
678 select SWAP_IO_SPACE
679 select SYS_HAS_CPU_R10000
680 #
681 # Disable EARLY_PRINTK for now since it leads to overwritten prom
682 # memory during early boot on some machines.
683 #
684 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
685 # for a more details discussion
686 #
687 # select SYS_HAS_EARLY_PRINTK
688 select SYS_SUPPORTS_64BIT_KERNEL
689 select SYS_SUPPORTS_BIG_ENDIAN
690 select MIPS_L1_CACHE_SHIFT_7
691 help
692 This is the SGI Indigo2 with R10000 processor. To compile a Linux
693 kernel that runs on these, say Y here.
694
695config SGI_IP32
696 bool "SGI IP32 (O2)"
697 select FW_ARC
698 select FW_ARC32
699 select BOOT_ELF32
700 select CEVT_R4K
701 select CSRC_R4K
702 select DMA_NONCOHERENT
703 select HW_HAS_PCI
704 select IRQ_MIPS_CPU
705 select R5000_CPU_SCACHE
706 select RM7000_CPU_SCACHE
707 select SYS_HAS_CPU_R5000
708 select SYS_HAS_CPU_R10000 if BROKEN
709 select SYS_HAS_CPU_RM7000
710 select SYS_HAS_CPU_NEVADA
711 select SYS_SUPPORTS_64BIT_KERNEL
712 select SYS_SUPPORTS_BIG_ENDIAN
713 help
714 If you want this kernel to run on SGI O2 workstation, say Y here.
715
716config SIBYTE_CRHINE
717 bool "Sibyte BCM91120C-CRhine"
718 select BOOT_ELF32
719 select DMA_COHERENT
720 select SIBYTE_BCM1120
721 select SWAP_IO_SPACE
722 select SYS_HAS_CPU_SB1
723 select SYS_SUPPORTS_BIG_ENDIAN
724 select SYS_SUPPORTS_LITTLE_ENDIAN
725
726config SIBYTE_CARMEL
727 bool "Sibyte BCM91120x-Carmel"
728 select BOOT_ELF32
729 select DMA_COHERENT
730 select SIBYTE_BCM1120
731 select SWAP_IO_SPACE
732 select SYS_HAS_CPU_SB1
733 select SYS_SUPPORTS_BIG_ENDIAN
734 select SYS_SUPPORTS_LITTLE_ENDIAN
735
736config SIBYTE_CRHONE
737 bool "Sibyte BCM91125C-CRhone"
738 select BOOT_ELF32
739 select DMA_COHERENT
740 select SIBYTE_BCM1125
741 select SWAP_IO_SPACE
742 select SYS_HAS_CPU_SB1
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HIGHMEM
745 select SYS_SUPPORTS_LITTLE_ENDIAN
746
747config SIBYTE_RHONE
748 bool "Sibyte BCM91125E-Rhone"
749 select BOOT_ELF32
750 select DMA_COHERENT
751 select SIBYTE_BCM1125H
752 select SWAP_IO_SPACE
753 select SYS_HAS_CPU_SB1
754 select SYS_SUPPORTS_BIG_ENDIAN
755 select SYS_SUPPORTS_LITTLE_ENDIAN
756
757config SIBYTE_SWARM
758 bool "Sibyte BCM91250A-SWARM"
759 select BOOT_ELF32
760 select DMA_COHERENT
761 select HAVE_PATA_PLATFORM
762 select SIBYTE_SB1250
763 select SWAP_IO_SPACE
764 select SYS_HAS_CPU_SB1
765 select SYS_SUPPORTS_BIG_ENDIAN
766 select SYS_SUPPORTS_HIGHMEM
767 select SYS_SUPPORTS_LITTLE_ENDIAN
768 select ZONE_DMA32 if 64BIT
769
770config SIBYTE_LITTLESUR
771 bool "Sibyte BCM91250C2-LittleSur"
772 select BOOT_ELF32
773 select DMA_COHERENT
774 select HAVE_PATA_PLATFORM
775 select SIBYTE_SB1250
776 select SWAP_IO_SPACE
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select SYS_SUPPORTS_LITTLE_ENDIAN
781
782config SIBYTE_SENTOSA
783 bool "Sibyte BCM91250E-Sentosa"
784 select BOOT_ELF32
785 select DMA_COHERENT
786 select SIBYTE_SB1250
787 select SWAP_IO_SPACE
788 select SYS_HAS_CPU_SB1
789 select SYS_SUPPORTS_BIG_ENDIAN
790 select SYS_SUPPORTS_LITTLE_ENDIAN
791
792config SIBYTE_BIGSUR
793 bool "Sibyte BCM91480B-BigSur"
794 select BOOT_ELF32
795 select DMA_COHERENT
796 select NR_CPUS_DEFAULT_4
797 select SIBYTE_BCM1x80
798 select SWAP_IO_SPACE
799 select SYS_HAS_CPU_SB1
800 select SYS_SUPPORTS_BIG_ENDIAN
801 select SYS_SUPPORTS_HIGHMEM
802 select SYS_SUPPORTS_LITTLE_ENDIAN
803 select ZONE_DMA32 if 64BIT
804
805config SNI_RM
806 bool "SNI RM200/300/400"
807 select FW_ARC if CPU_LITTLE_ENDIAN
808 select FW_ARC32 if CPU_LITTLE_ENDIAN
809 select FW_SNIPROM if CPU_BIG_ENDIAN
810 select ARCH_MAY_HAVE_PC_FDC
811 select BOOT_ELF32
812 select CEVT_R4K
813 select CSRC_R4K
814 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
815 select DMA_NONCOHERENT
816 select GENERIC_ISA_DMA
817 select HAVE_PCSPKR_PLATFORM
818 select HW_HAS_EISA
819 select HW_HAS_PCI
820 select IRQ_MIPS_CPU
821 select I8253
822 select I8259
823 select ISA
824 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
825 select SYS_HAS_CPU_R4X00
826 select SYS_HAS_CPU_R5000
827 select SYS_HAS_CPU_R10000
828 select R5000_CPU_SCACHE
829 select SYS_HAS_EARLY_PRINTK
830 select SYS_SUPPORTS_32BIT_KERNEL
831 select SYS_SUPPORTS_64BIT_KERNEL
832 select SYS_SUPPORTS_BIG_ENDIAN
833 select SYS_SUPPORTS_HIGHMEM
834 select SYS_SUPPORTS_LITTLE_ENDIAN
835 help
836 The SNI RM200/300/400 are MIPS-based machines manufactured by
837 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
838 Technology and now in turn merged with Fujitsu. Say Y here to
839 support this machine type.
840
841config MACH_TX39XX
842 bool "Toshiba TX39 series based machines"
843
844config MACH_TX49XX
845 bool "Toshiba TX49 series based machines"
846
847config MIKROTIK_RB532
848 bool "Mikrotik RB532 boards"
849 select CEVT_R4K
850 select CSRC_R4K
851 select DMA_NONCOHERENT
852 select HW_HAS_PCI
853 select IRQ_MIPS_CPU
854 select SYS_HAS_CPU_MIPS32_R1
855 select SYS_SUPPORTS_32BIT_KERNEL
856 select SYS_SUPPORTS_LITTLE_ENDIAN
857 select SWAP_IO_SPACE
858 select BOOT_RAW
859 select ARCH_REQUIRE_GPIOLIB
860 select MIPS_L1_CACHE_SHIFT_4
861 help
862 Support the Mikrotik(tm) RouterBoard 532 series,
863 based on the IDT RC32434 SoC.
864
865config CAVIUM_OCTEON_SOC
866 bool "Cavium Networks Octeon SoC based boards"
867 select CEVT_R4K
868 select ARCH_PHYS_ADDR_T_64BIT
869 select DMA_COHERENT
870 select SYS_SUPPORTS_64BIT_KERNEL
871 select SYS_SUPPORTS_BIG_ENDIAN
872 select EDAC_SUPPORT
873 select EDAC_ATOMIC_SCRUB
874 select SYS_SUPPORTS_LITTLE_ENDIAN
875 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
876 select SYS_HAS_EARLY_PRINTK
877 select SYS_HAS_CPU_CAVIUM_OCTEON
878 select SWAP_IO_SPACE
879 select HW_HAS_PCI
880 select ZONE_DMA32
881 select HOLES_IN_ZONE
882 select ARCH_REQUIRE_GPIOLIB
883 select LIBFDT
884 select USE_OF
885 select ARCH_SPARSEMEM_ENABLE
886 select SYS_SUPPORTS_SMP
887 select NR_CPUS_DEFAULT_16
888 select BUILTIN_DTB
889 select MTD_COMPLEX_MAPPINGS
890 help
891 This option supports all of the Octeon reference boards from Cavium
892 Networks. It builds a kernel that dynamically determines the Octeon
893 CPU type and supports all known board reference implementations.
894 Some of the supported boards are:
895 EBT3000
896 EBH3000
897 EBH3100
898 Thunder
899 Kodama
900 Hikari
901 Say Y here for most Octeon reference boards.
902
903config NLM_XLR_BOARD
904 bool "Netlogic XLR/XLS based systems"
905 select BOOT_ELF32
906 select NLM_COMMON
907 select SYS_HAS_CPU_XLR
908 select SYS_SUPPORTS_SMP
909 select HW_HAS_PCI
910 select SWAP_IO_SPACE
911 select SYS_SUPPORTS_32BIT_KERNEL
912 select SYS_SUPPORTS_64BIT_KERNEL
913 select ARCH_PHYS_ADDR_T_64BIT
914 select SYS_SUPPORTS_BIG_ENDIAN
915 select SYS_SUPPORTS_HIGHMEM
916 select DMA_COHERENT
917 select NR_CPUS_DEFAULT_32
918 select CEVT_R4K
919 select CSRC_R4K
920 select IRQ_MIPS_CPU
921 select ZONE_DMA32 if 64BIT
922 select SYNC_R4K
923 select SYS_HAS_EARLY_PRINTK
924 select SYS_SUPPORTS_ZBOOT
925 select SYS_SUPPORTS_ZBOOT_UART16550
926 help
927 Support for systems based on Netlogic XLR and XLS processors.
928 Say Y here if you have a XLR or XLS based board.
929
930config NLM_XLP_BOARD
931 bool "Netlogic XLP based systems"
932 select BOOT_ELF32
933 select NLM_COMMON
934 select SYS_HAS_CPU_XLP
935 select SYS_SUPPORTS_SMP
936 select HW_HAS_PCI
937 select SYS_SUPPORTS_32BIT_KERNEL
938 select SYS_SUPPORTS_64BIT_KERNEL
939 select ARCH_PHYS_ADDR_T_64BIT
940 select ARCH_REQUIRE_GPIOLIB
941 select SYS_SUPPORTS_BIG_ENDIAN
942 select SYS_SUPPORTS_LITTLE_ENDIAN
943 select SYS_SUPPORTS_HIGHMEM
944 select DMA_COHERENT
945 select NR_CPUS_DEFAULT_32
946 select CEVT_R4K
947 select CSRC_R4K
948 select IRQ_MIPS_CPU
949 select ZONE_DMA32 if 64BIT
950 select SYNC_R4K
951 select SYS_HAS_EARLY_PRINTK
952 select USE_OF
953 select SYS_SUPPORTS_ZBOOT
954 select SYS_SUPPORTS_ZBOOT_UART16550
955 help
956 This board is based on Netlogic XLP Processor.
957 Say Y here if you have a XLP based board.
958
959config MIPS_PARAVIRT
960 bool "Para-Virtualized guest system"
961 select CEVT_R4K
962 select CSRC_R4K
963 select DMA_COHERENT
964 select SYS_SUPPORTS_64BIT_KERNEL
965 select SYS_SUPPORTS_32BIT_KERNEL
966 select SYS_SUPPORTS_BIG_ENDIAN
967 select SYS_SUPPORTS_SMP
968 select NR_CPUS_DEFAULT_4
969 select SYS_HAS_EARLY_PRINTK
970 select SYS_HAS_CPU_MIPS32_R2
971 select SYS_HAS_CPU_MIPS64_R2
972 select SYS_HAS_CPU_CAVIUM_OCTEON
973 select HW_HAS_PCI
974 select SWAP_IO_SPACE
975 help
976 This option supports guest running under ????
977
978endchoice
979
980source "arch/mips/alchemy/Kconfig"
981source "arch/mips/ath25/Kconfig"
982source "arch/mips/ath79/Kconfig"
983source "arch/mips/bcm47xx/Kconfig"
984source "arch/mips/bcm63xx/Kconfig"
985source "arch/mips/bmips/Kconfig"
986source "arch/mips/jazz/Kconfig"
987source "arch/mips/jz4740/Kconfig"
988source "arch/mips/lantiq/Kconfig"
989source "arch/mips/lasat/Kconfig"
990source "arch/mips/pic32/Kconfig"
991source "arch/mips/pistachio/Kconfig"
992source "arch/mips/pmcs-msp71xx/Kconfig"
993source "arch/mips/ralink/Kconfig"
994source "arch/mips/sgi-ip27/Kconfig"
995source "arch/mips/sibyte/Kconfig"
996source "arch/mips/txx9/Kconfig"
997source "arch/mips/vr41xx/Kconfig"
998source "arch/mips/cavium-octeon/Kconfig"
999source "arch/mips/loongson32/Kconfig"
1000source "arch/mips/loongson64/Kconfig"
1001source "arch/mips/netlogic/Kconfig"
1002source "arch/mips/paravirt/Kconfig"
1003source "arch/mips/xilfpga/Kconfig"
1004
1005endmenu
1006
1007config RWSEM_GENERIC_SPINLOCK
1008 bool
1009 default y
1010
1011config RWSEM_XCHGADD_ALGORITHM
1012 bool
1013
1014config ARCH_HAS_ILOG2_U32
1015 bool
1016 default n
1017
1018config ARCH_HAS_ILOG2_U64
1019 bool
1020 default n
1021
1022config GENERIC_HWEIGHT
1023 bool
1024 default y
1025
1026config GENERIC_CALIBRATE_DELAY
1027 bool
1028 default y
1029
1030config SCHED_OMIT_FRAME_POINTER
1031 bool
1032 default y
1033
1034#
1035# Select some configuration options automatically based on user selections.
1036#
1037config FW_ARC
1038 bool
1039
1040config ARCH_MAY_HAVE_PC_FDC
1041 bool
1042
1043config BOOT_RAW
1044 bool
1045
1046config CEVT_BCM1480
1047 bool
1048
1049config CEVT_DS1287
1050 bool
1051
1052config CEVT_GT641XX
1053 bool
1054
1055config CEVT_R4K
1056 bool
1057
1058config CEVT_SB1250
1059 bool
1060
1061config CEVT_TXX9
1062 bool
1063
1064config CSRC_BCM1480
1065 bool
1066
1067config CSRC_IOASIC
1068 bool
1069
1070config CSRC_R4K
1071 bool
1072
1073config CSRC_SB1250
1074 bool
1075
1076config MIPS_CLOCK_VSYSCALL
1077 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1078
1079config GPIO_TXX9
1080 select ARCH_REQUIRE_GPIOLIB
1081 bool
1082
1083config FW_CFE
1084 bool
1085
1086config ARCH_DMA_ADDR_T_64BIT
1087 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1088
1089config ARCH_SUPPORTS_UPROBES
1090 bool
1091
1092config DMA_MAYBE_COHERENT
1093 select DMA_NONCOHERENT
1094 bool
1095
1096config DMA_COHERENT
1097 bool
1098
1099config DMA_NONCOHERENT
1100 bool
1101 select NEED_DMA_MAP_STATE
1102
1103config NEED_DMA_MAP_STATE
1104 bool
1105
1106config SYS_HAS_EARLY_PRINTK
1107 bool
1108
1109config HOTPLUG_CPU
1110 bool "Support for hot-pluggable CPUs"
1111 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1112 help
1113 Say Y here to allow turning CPUs off and on. CPUs can be
1114 controlled through /sys/devices/system/cpu.
1115 (Note: power management support will enable this option
1116 automatically on SMP systems. )
1117 Say N if you want to disable CPU hotplug.
1118
1119config SYS_SUPPORTS_HOTPLUG_CPU
1120 bool
1121
1122config MIPS_BONITO64
1123 bool
1124
1125config MIPS_MSC
1126 bool
1127
1128config MIPS_NILE4
1129 bool
1130
1131config SYNC_R4K
1132 bool
1133
1134config MIPS_MACHINE
1135 def_bool n
1136
1137config NO_IOPORT_MAP
1138 def_bool n
1139
1140config GENERIC_CSUM
1141 bool
1142
1143config GENERIC_ISA_DMA
1144 bool
1145 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1146 select ISA_DMA_API
1147
1148config GENERIC_ISA_DMA_SUPPORT_BROKEN
1149 bool
1150 select GENERIC_ISA_DMA
1151
1152config ISA_DMA_API
1153 bool
1154
1155config HOLES_IN_ZONE
1156 bool
1157
1158#
1159# Endianness selection. Sufficiently obscure so many users don't know what to
1160# answer,so we try hard to limit the available choices. Also the use of a
1161# choice statement should be more obvious to the user.
1162#
1163choice
1164 prompt "Endianness selection"
1165 help
1166 Some MIPS machines can be configured for either little or big endian
1167 byte order. These modes require different kernels and a different
1168 Linux distribution. In general there is one preferred byteorder for a
1169 particular system but some systems are just as commonly used in the
1170 one or the other endianness.
1171
1172config CPU_BIG_ENDIAN
1173 bool "Big endian"
1174 depends on SYS_SUPPORTS_BIG_ENDIAN
1175
1176config CPU_LITTLE_ENDIAN
1177 bool "Little endian"
1178 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1179
1180endchoice
1181
1182config EXPORT_UASM
1183 bool
1184
1185config SYS_SUPPORTS_APM_EMULATION
1186 bool
1187
1188config SYS_SUPPORTS_BIG_ENDIAN
1189 bool
1190
1191config SYS_SUPPORTS_LITTLE_ENDIAN
1192 bool
1193
1194config SYS_SUPPORTS_HUGETLBFS
1195 bool
1196 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1197 default y
1198
1199config MIPS_HUGE_TLB_SUPPORT
1200 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1201
1202config IRQ_CPU_RM7K
1203 bool
1204
1205config IRQ_MSP_SLP
1206 bool
1207
1208config IRQ_MSP_CIC
1209 bool
1210
1211config IRQ_TXX9
1212 bool
1213
1214config IRQ_GT641XX
1215 bool
1216
1217config PCI_GT64XXX_PCI0
1218 bool
1219
1220config NO_EXCEPT_FILL
1221 bool
1222
1223config SOC_EMMA2RH
1224 bool
1225 select CEVT_R4K
1226 select CSRC_R4K
1227 select DMA_NONCOHERENT
1228 select IRQ_MIPS_CPU
1229 select SWAP_IO_SPACE
1230 select SYS_HAS_CPU_R5500
1231 select SYS_SUPPORTS_32BIT_KERNEL
1232 select SYS_SUPPORTS_64BIT_KERNEL
1233 select SYS_SUPPORTS_BIG_ENDIAN
1234
1235config SOC_PNX833X
1236 bool
1237 select CEVT_R4K
1238 select CSRC_R4K
1239 select IRQ_MIPS_CPU
1240 select DMA_NONCOHERENT
1241 select SYS_HAS_CPU_MIPS32_R2
1242 select SYS_SUPPORTS_32BIT_KERNEL
1243 select SYS_SUPPORTS_LITTLE_ENDIAN
1244 select SYS_SUPPORTS_BIG_ENDIAN
1245 select SYS_SUPPORTS_MIPS16
1246 select CPU_MIPSR2_IRQ_VI
1247
1248config SOC_PNX8335
1249 bool
1250 select SOC_PNX833X
1251
1252config MIPS_SPRAM
1253 bool
1254
1255config SWAP_IO_SPACE
1256 bool
1257
1258config SGI_HAS_INDYDOG
1259 bool
1260
1261config SGI_HAS_HAL2
1262 bool
1263
1264config SGI_HAS_SEEQ
1265 bool
1266
1267config SGI_HAS_WD93
1268 bool
1269
1270config SGI_HAS_ZILOG
1271 bool
1272
1273config SGI_HAS_I8042
1274 bool
1275
1276config DEFAULT_SGI_PARTITION
1277 bool
1278
1279config FW_ARC32
1280 bool
1281
1282config FW_SNIPROM
1283 bool
1284
1285config BOOT_ELF32
1286 bool
1287
1288config MIPS_L1_CACHE_SHIFT_4
1289 bool
1290
1291config MIPS_L1_CACHE_SHIFT_5
1292 bool
1293
1294config MIPS_L1_CACHE_SHIFT_6
1295 bool
1296
1297config MIPS_L1_CACHE_SHIFT_7
1298 bool
1299
1300config MIPS_L1_CACHE_SHIFT
1301 int
1302 default "7" if MIPS_L1_CACHE_SHIFT_7
1303 default "6" if MIPS_L1_CACHE_SHIFT_6
1304 default "5" if MIPS_L1_CACHE_SHIFT_5
1305 default "4" if MIPS_L1_CACHE_SHIFT_4
1306 default "5"
1307
1308config HAVE_STD_PC_SERIAL_PORT
1309 bool
1310
1311config ARC_CONSOLE
1312 bool "ARC console support"
1313 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1314
1315config ARC_MEMORY
1316 bool
1317 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1318 default y
1319
1320config ARC_PROMLIB
1321 bool
1322 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1323 default y
1324
1325config FW_ARC64
1326 bool
1327
1328config BOOT_ELF64
1329 bool
1330
1331menu "CPU selection"
1332
1333choice
1334 prompt "CPU type"
1335 default CPU_R4X00
1336
1337config CPU_LOONGSON3
1338 bool "Loongson 3 CPU"
1339 depends on SYS_HAS_CPU_LOONGSON3
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HIGHMEM
1342 select CPU_SUPPORTS_HUGEPAGES
1343 select WEAK_ORDERING
1344 select WEAK_REORDERING_BEYOND_LLSC
1345 select ARCH_REQUIRE_GPIOLIB
1346 help
1347 The Loongson 3 processor implements the MIPS64R2 instruction
1348 set with many extensions.
1349
1350config CPU_LOONGSON2E
1351 bool "Loongson 2E"
1352 depends on SYS_HAS_CPU_LOONGSON2E
1353 select CPU_LOONGSON2
1354 help
1355 The Loongson 2E processor implements the MIPS III instruction set
1356 with many extensions.
1357
1358 It has an internal FPGA northbridge, which is compatible to
1359 bonito64.
1360
1361config CPU_LOONGSON2F
1362 bool "Loongson 2F"
1363 depends on SYS_HAS_CPU_LOONGSON2F
1364 select CPU_LOONGSON2
1365 select ARCH_REQUIRE_GPIOLIB
1366 help
1367 The Loongson 2F processor implements the MIPS III instruction set
1368 with many extensions.
1369
1370 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1371 have a similar programming interface with FPGA northbridge used in
1372 Loongson2E.
1373
1374config CPU_LOONGSON1B
1375 bool "Loongson 1B"
1376 depends on SYS_HAS_CPU_LOONGSON1B
1377 select CPU_LOONGSON1
1378 help
1379 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1380 release 2 instruction set.
1381
1382config CPU_MIPS32_R1
1383 bool "MIPS32 Release 1"
1384 depends on SYS_HAS_CPU_MIPS32_R1
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_32BIT_KERNEL
1387 select CPU_SUPPORTS_HIGHMEM
1388 help
1389 Choose this option to build a kernel for release 1 or later of the
1390 MIPS32 architecture. Most modern embedded systems with a 32-bit
1391 MIPS processor are based on a MIPS32 processor. If you know the
1392 specific type of processor in your system, choose those that one
1393 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1394 Release 2 of the MIPS32 architecture is available since several
1395 years so chances are you even have a MIPS32 Release 2 processor
1396 in which case you should choose CPU_MIPS32_R2 instead for better
1397 performance.
1398
1399config CPU_MIPS32_R2
1400 bool "MIPS32 Release 2"
1401 depends on SYS_HAS_CPU_MIPS32_R2
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_32BIT_KERNEL
1404 select CPU_SUPPORTS_HIGHMEM
1405 select CPU_SUPPORTS_MSA
1406 select HAVE_KVM
1407 help
1408 Choose this option to build a kernel for release 2 or later of the
1409 MIPS32 architecture. Most modern embedded systems with a 32-bit
1410 MIPS processor are based on a MIPS32 processor. If you know the
1411 specific type of processor in your system, choose those that one
1412 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1413
1414config CPU_MIPS32_R6
1415 bool "MIPS32 Release 6"
1416 depends on SYS_HAS_CPU_MIPS32_R6
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_HIGHMEM
1420 select CPU_SUPPORTS_MSA
1421 select GENERIC_CSUM
1422 select HAVE_KVM
1423 select MIPS_O32_FP64_SUPPORT
1424 help
1425 Choose this option to build a kernel for release 6 or later of the
1426 MIPS32 architecture. New MIPS processors, starting with the Warrior
1427 family, are based on a MIPS32r6 processor. If you own an older
1428 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1429
1430config CPU_MIPS64_R1
1431 bool "MIPS64 Release 1"
1432 depends on SYS_HAS_CPU_MIPS64_R1
1433 select CPU_HAS_PREFETCH
1434 select CPU_SUPPORTS_32BIT_KERNEL
1435 select CPU_SUPPORTS_64BIT_KERNEL
1436 select CPU_SUPPORTS_HIGHMEM
1437 select CPU_SUPPORTS_HUGEPAGES
1438 help
1439 Choose this option to build a kernel for release 1 or later of the
1440 MIPS64 architecture. Many modern embedded systems with a 64-bit
1441 MIPS processor are based on a MIPS64 processor. If you know the
1442 specific type of processor in your system, choose those that one
1443 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1444 Release 2 of the MIPS64 architecture is available since several
1445 years so chances are you even have a MIPS64 Release 2 processor
1446 in which case you should choose CPU_MIPS64_R2 instead for better
1447 performance.
1448
1449config CPU_MIPS64_R2
1450 bool "MIPS64 Release 2"
1451 depends on SYS_HAS_CPU_MIPS64_R2
1452 select CPU_HAS_PREFETCH
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454 select CPU_SUPPORTS_64BIT_KERNEL
1455 select CPU_SUPPORTS_HIGHMEM
1456 select CPU_SUPPORTS_HUGEPAGES
1457 select CPU_SUPPORTS_MSA
1458 help
1459 Choose this option to build a kernel for release 2 or later of the
1460 MIPS64 architecture. Many modern embedded systems with a 64-bit
1461 MIPS processor are based on a MIPS64 processor. If you know the
1462 specific type of processor in your system, choose those that one
1463 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1464
1465config CPU_MIPS64_R6
1466 bool "MIPS64 Release 6"
1467 depends on SYS_HAS_CPU_MIPS64_R6
1468 select CPU_HAS_PREFETCH
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_64BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1472 select CPU_SUPPORTS_MSA
1473 select GENERIC_CSUM
1474 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1475 help
1476 Choose this option to build a kernel for release 6 or later of the
1477 MIPS64 architecture. New MIPS processors, starting with the Warrior
1478 family, are based on a MIPS64r6 processor. If you own an older
1479 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1480
1481config CPU_R3000
1482 bool "R3000"
1483 depends on SYS_HAS_CPU_R3000
1484 select CPU_HAS_WB
1485 select CPU_SUPPORTS_32BIT_KERNEL
1486 select CPU_SUPPORTS_HIGHMEM
1487 help
1488 Please make sure to pick the right CPU type. Linux/MIPS is not
1489 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1490 *not* work on R4000 machines and vice versa. However, since most
1491 of the supported machines have an R4000 (or similar) CPU, R4x00
1492 might be a safe bet. If the resulting kernel does not work,
1493 try to recompile with R3000.
1494
1495config CPU_TX39XX
1496 bool "R39XX"
1497 depends on SYS_HAS_CPU_TX39XX
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499
1500config CPU_VR41XX
1501 bool "R41xx"
1502 depends on SYS_HAS_CPU_VR41XX
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 help
1506 The options selects support for the NEC VR4100 series of processors.
1507 Only choose this option if you have one of these processors as a
1508 kernel built with this option will not run on any other type of
1509 processor or vice versa.
1510
1511config CPU_R4300
1512 bool "R4300"
1513 depends on SYS_HAS_CPU_R4300
1514 select CPU_SUPPORTS_32BIT_KERNEL
1515 select CPU_SUPPORTS_64BIT_KERNEL
1516 help
1517 MIPS Technologies R4300-series processors.
1518
1519config CPU_R4X00
1520 bool "R4x00"
1521 depends on SYS_HAS_CPU_R4X00
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HUGEPAGES
1525 help
1526 MIPS Technologies R4000-series processors other than 4300, including
1527 the R4000, R4400, R4600, and 4700.
1528
1529config CPU_TX49XX
1530 bool "R49XX"
1531 depends on SYS_HAS_CPU_TX49XX
1532 select CPU_HAS_PREFETCH
1533 select CPU_SUPPORTS_32BIT_KERNEL
1534 select CPU_SUPPORTS_64BIT_KERNEL
1535 select CPU_SUPPORTS_HUGEPAGES
1536
1537config CPU_R5000
1538 bool "R5000"
1539 depends on SYS_HAS_CPU_R5000
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HUGEPAGES
1543 help
1544 MIPS Technologies R5000-series processors other than the Nevada.
1545
1546config CPU_R5432
1547 bool "R5432"
1548 depends on SYS_HAS_CPU_R5432
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HUGEPAGES
1552
1553config CPU_R5500
1554 bool "R5500"
1555 depends on SYS_HAS_CPU_R5500
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_64BIT_KERNEL
1558 select CPU_SUPPORTS_HUGEPAGES
1559 help
1560 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1561 instruction set.
1562
1563config CPU_R6000
1564 bool "R6000"
1565 depends on SYS_HAS_CPU_R6000
1566 select CPU_SUPPORTS_32BIT_KERNEL
1567 help
1568 MIPS Technologies R6000 and R6000A series processors. Note these
1569 processors are extremely rare and the support for them is incomplete.
1570
1571config CPU_NEVADA
1572 bool "RM52xx"
1573 depends on SYS_HAS_CPU_NEVADA
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_64BIT_KERNEL
1576 select CPU_SUPPORTS_HUGEPAGES
1577 help
1578 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1579
1580config CPU_R8000
1581 bool "R8000"
1582 depends on SYS_HAS_CPU_R8000
1583 select CPU_HAS_PREFETCH
1584 select CPU_SUPPORTS_64BIT_KERNEL
1585 help
1586 MIPS Technologies R8000 processors. Note these processors are
1587 uncommon and the support for them is incomplete.
1588
1589config CPU_R10000
1590 bool "R10000"
1591 depends on SYS_HAS_CPU_R10000
1592 select CPU_HAS_PREFETCH
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_64BIT_KERNEL
1595 select CPU_SUPPORTS_HIGHMEM
1596 select CPU_SUPPORTS_HUGEPAGES
1597 help
1598 MIPS Technologies R10000-series processors.
1599
1600config CPU_RM7000
1601 bool "RM7000"
1602 depends on SYS_HAS_CPU_RM7000
1603 select CPU_HAS_PREFETCH
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_SUPPORTS_HIGHMEM
1607 select CPU_SUPPORTS_HUGEPAGES
1608
1609config CPU_SB1
1610 bool "SB1"
1611 depends on SYS_HAS_CPU_SB1
1612 select CPU_SUPPORTS_32BIT_KERNEL
1613 select CPU_SUPPORTS_64BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select WEAK_ORDERING
1617
1618config CPU_CAVIUM_OCTEON
1619 bool "Cavium Octeon processor"
1620 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1621 select CPU_HAS_PREFETCH
1622 select CPU_SUPPORTS_64BIT_KERNEL
1623 select WEAK_ORDERING
1624 select CPU_SUPPORTS_HIGHMEM
1625 select CPU_SUPPORTS_HUGEPAGES
1626 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1627 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1628 select MIPS_L1_CACHE_SHIFT_7
1629 help
1630 The Cavium Octeon processor is a highly integrated chip containing
1631 many ethernet hardware widgets for networking tasks. The processor
1632 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1633 Full details can be found at http://www.caviumnetworks.com.
1634
1635config CPU_BMIPS
1636 bool "Broadcom BMIPS"
1637 depends on SYS_HAS_CPU_BMIPS
1638 select CPU_MIPS32
1639 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1640 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1641 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1642 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1643 select CPU_SUPPORTS_32BIT_KERNEL
1644 select DMA_NONCOHERENT
1645 select IRQ_MIPS_CPU
1646 select SWAP_IO_SPACE
1647 select WEAK_ORDERING
1648 select CPU_SUPPORTS_HIGHMEM
1649 select CPU_HAS_PREFETCH
1650 help
1651 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1652
1653config CPU_XLR
1654 bool "Netlogic XLR SoC"
1655 depends on SYS_HAS_CPU_XLR
1656 select CPU_SUPPORTS_32BIT_KERNEL
1657 select CPU_SUPPORTS_64BIT_KERNEL
1658 select CPU_SUPPORTS_HIGHMEM
1659 select CPU_SUPPORTS_HUGEPAGES
1660 select WEAK_ORDERING
1661 select WEAK_REORDERING_BEYOND_LLSC
1662 help
1663 Netlogic Microsystems XLR/XLS processors.
1664
1665config CPU_XLP
1666 bool "Netlogic XLP SoC"
1667 depends on SYS_HAS_CPU_XLP
1668 select CPU_SUPPORTS_32BIT_KERNEL
1669 select CPU_SUPPORTS_64BIT_KERNEL
1670 select CPU_SUPPORTS_HIGHMEM
1671 select WEAK_ORDERING
1672 select WEAK_REORDERING_BEYOND_LLSC
1673 select CPU_HAS_PREFETCH
1674 select CPU_MIPSR2
1675 select CPU_SUPPORTS_HUGEPAGES
1676 help
1677 Netlogic Microsystems XLP processors.
1678endchoice
1679
1680config CPU_MIPS32_3_5_FEATURES
1681 bool "MIPS32 Release 3.5 Features"
1682 depends on SYS_HAS_CPU_MIPS32_R3_5
1683 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1684 help
1685 Choose this option to build a kernel for release 2 or later of the
1686 MIPS32 architecture including features from the 3.5 release such as
1687 support for Enhanced Virtual Addressing (EVA).
1688
1689config CPU_MIPS32_3_5_EVA
1690 bool "Enhanced Virtual Addressing (EVA)"
1691 depends on CPU_MIPS32_3_5_FEATURES
1692 select EVA
1693 default y
1694 help
1695 Choose this option if you want to enable the Enhanced Virtual
1696 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1697 One of its primary benefits is an increase in the maximum size
1698 of lowmem (up to 3GB). If unsure, say 'N' here.
1699
1700config CPU_MIPS32_R5_FEATURES
1701 bool "MIPS32 Release 5 Features"
1702 depends on SYS_HAS_CPU_MIPS32_R5
1703 depends on CPU_MIPS32_R2
1704 help
1705 Choose this option to build a kernel for release 2 or later of the
1706 MIPS32 architecture including features from release 5 such as
1707 support for Extended Physical Addressing (XPA).
1708
1709config CPU_MIPS32_R5_XPA
1710 bool "Extended Physical Addressing (XPA)"
1711 depends on CPU_MIPS32_R5_FEATURES
1712 depends on !EVA
1713 depends on !PAGE_SIZE_4KB
1714 depends on SYS_SUPPORTS_HIGHMEM
1715 select XPA
1716 select HIGHMEM
1717 select ARCH_PHYS_ADDR_T_64BIT
1718 default n
1719 help
1720 Choose this option if you want to enable the Extended Physical
1721 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1722 benefit is to increase physical addressing equal to or greater
1723 than 40 bits. Note that this has the side effect of turning on
1724 64-bit addressing which in turn makes the PTEs 64-bit in size.
1725 If unsure, say 'N' here.
1726
1727if CPU_LOONGSON2F
1728config CPU_NOP_WORKAROUNDS
1729 bool
1730
1731config CPU_JUMP_WORKAROUNDS
1732 bool
1733
1734config CPU_LOONGSON2F_WORKAROUNDS
1735 bool "Loongson 2F Workarounds"
1736 default y
1737 select CPU_NOP_WORKAROUNDS
1738 select CPU_JUMP_WORKAROUNDS
1739 help
1740 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1741 require workarounds. Without workarounds the system may hang
1742 unexpectedly. For more information please refer to the gas
1743 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1744
1745 Loongson 2F03 and later have fixed these issues and no workarounds
1746 are needed. The workarounds have no significant side effect on them
1747 but may decrease the performance of the system so this option should
1748 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1749 systems.
1750
1751 If unsure, please say Y.
1752endif # CPU_LOONGSON2F
1753
1754config SYS_SUPPORTS_ZBOOT
1755 bool
1756 select HAVE_KERNEL_GZIP
1757 select HAVE_KERNEL_BZIP2
1758 select HAVE_KERNEL_LZ4
1759 select HAVE_KERNEL_LZMA
1760 select HAVE_KERNEL_LZO
1761 select HAVE_KERNEL_XZ
1762
1763config SYS_SUPPORTS_ZBOOT_UART16550
1764 bool
1765 select SYS_SUPPORTS_ZBOOT
1766
1767config SYS_SUPPORTS_ZBOOT_UART_PROM
1768 bool
1769 select SYS_SUPPORTS_ZBOOT
1770
1771config CPU_LOONGSON2
1772 bool
1773 select CPU_SUPPORTS_32BIT_KERNEL
1774 select CPU_SUPPORTS_64BIT_KERNEL
1775 select CPU_SUPPORTS_HIGHMEM
1776 select CPU_SUPPORTS_HUGEPAGES
1777
1778config CPU_LOONGSON1
1779 bool
1780 select CPU_MIPS32
1781 select CPU_MIPSR2
1782 select CPU_HAS_PREFETCH
1783 select CPU_SUPPORTS_32BIT_KERNEL
1784 select CPU_SUPPORTS_HIGHMEM
1785 select CPU_SUPPORTS_CPUFREQ
1786
1787config CPU_BMIPS32_3300
1788 select SMP_UP if SMP
1789 bool
1790
1791config CPU_BMIPS4350
1792 bool
1793 select SYS_SUPPORTS_SMP
1794 select SYS_SUPPORTS_HOTPLUG_CPU
1795
1796config CPU_BMIPS4380
1797 bool
1798 select MIPS_L1_CACHE_SHIFT_6
1799 select SYS_SUPPORTS_SMP
1800 select SYS_SUPPORTS_HOTPLUG_CPU
1801
1802config CPU_BMIPS5000
1803 bool
1804 select MIPS_CPU_SCACHE
1805 select MIPS_L1_CACHE_SHIFT_7
1806 select SYS_SUPPORTS_SMP
1807 select SYS_SUPPORTS_HOTPLUG_CPU
1808
1809config SYS_HAS_CPU_LOONGSON3
1810 bool
1811 select CPU_SUPPORTS_CPUFREQ
1812
1813config SYS_HAS_CPU_LOONGSON2E
1814 bool
1815
1816config SYS_HAS_CPU_LOONGSON2F
1817 bool
1818 select CPU_SUPPORTS_CPUFREQ
1819 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1820 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1821
1822config SYS_HAS_CPU_LOONGSON1B
1823 bool
1824
1825config SYS_HAS_CPU_MIPS32_R1
1826 bool
1827
1828config SYS_HAS_CPU_MIPS32_R2
1829 bool
1830
1831config SYS_HAS_CPU_MIPS32_R3_5
1832 bool
1833
1834config SYS_HAS_CPU_MIPS32_R5
1835 bool
1836
1837config SYS_HAS_CPU_MIPS32_R6
1838 bool
1839
1840config SYS_HAS_CPU_MIPS64_R1
1841 bool
1842
1843config SYS_HAS_CPU_MIPS64_R2
1844 bool
1845
1846config SYS_HAS_CPU_MIPS64_R6
1847 bool
1848
1849config SYS_HAS_CPU_R3000
1850 bool
1851
1852config SYS_HAS_CPU_TX39XX
1853 bool
1854
1855config SYS_HAS_CPU_VR41XX
1856 bool
1857
1858config SYS_HAS_CPU_R4300
1859 bool
1860
1861config SYS_HAS_CPU_R4X00
1862 bool
1863
1864config SYS_HAS_CPU_TX49XX
1865 bool
1866
1867config SYS_HAS_CPU_R5000
1868 bool
1869
1870config SYS_HAS_CPU_R5432
1871 bool
1872
1873config SYS_HAS_CPU_R5500
1874 bool
1875
1876config SYS_HAS_CPU_R6000
1877 bool
1878
1879config SYS_HAS_CPU_NEVADA
1880 bool
1881
1882config SYS_HAS_CPU_R8000
1883 bool
1884
1885config SYS_HAS_CPU_R10000
1886 bool
1887
1888config SYS_HAS_CPU_RM7000
1889 bool
1890
1891config SYS_HAS_CPU_SB1
1892 bool
1893
1894config SYS_HAS_CPU_CAVIUM_OCTEON
1895 bool
1896
1897config SYS_HAS_CPU_BMIPS
1898 bool
1899
1900config SYS_HAS_CPU_BMIPS32_3300
1901 bool
1902 select SYS_HAS_CPU_BMIPS
1903
1904config SYS_HAS_CPU_BMIPS4350
1905 bool
1906 select SYS_HAS_CPU_BMIPS
1907
1908config SYS_HAS_CPU_BMIPS4380
1909 bool
1910 select SYS_HAS_CPU_BMIPS
1911
1912config SYS_HAS_CPU_BMIPS5000
1913 bool
1914 select SYS_HAS_CPU_BMIPS
1915
1916config SYS_HAS_CPU_XLR
1917 bool
1918
1919config SYS_HAS_CPU_XLP
1920 bool
1921
1922config MIPS_MALTA_PM
1923 depends on MIPS_MALTA
1924 depends on PCI
1925 bool
1926 default y
1927
1928#
1929# CPU may reorder R->R, R->W, W->R, W->W
1930# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1931#
1932config WEAK_ORDERING
1933 bool
1934
1935#
1936# CPU may reorder reads and writes beyond LL/SC
1937# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1938#
1939config WEAK_REORDERING_BEYOND_LLSC
1940 bool
1941endmenu
1942
1943#
1944# These two indicate any level of the MIPS32 and MIPS64 architecture
1945#
1946config CPU_MIPS32
1947 bool
1948 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1949
1950config CPU_MIPS64
1951 bool
1952 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1953
1954#
1955# These two indicate the revision of the architecture, either Release 1 or Release 2
1956#
1957config CPU_MIPSR1
1958 bool
1959 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1960
1961config CPU_MIPSR2
1962 bool
1963 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1964 select MIPS_SPRAM
1965
1966config CPU_MIPSR6
1967 bool
1968 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1969 select MIPS_SPRAM
1970
1971config EVA
1972 bool
1973
1974config XPA
1975 bool
1976
1977config SYS_SUPPORTS_32BIT_KERNEL
1978 bool
1979config SYS_SUPPORTS_64BIT_KERNEL
1980 bool
1981config CPU_SUPPORTS_32BIT_KERNEL
1982 bool
1983config CPU_SUPPORTS_64BIT_KERNEL
1984 bool
1985config CPU_SUPPORTS_CPUFREQ
1986 bool
1987config CPU_SUPPORTS_ADDRWINCFG
1988 bool
1989config CPU_SUPPORTS_HUGEPAGES
1990 bool
1991config CPU_SUPPORTS_UNCACHED_ACCELERATED
1992 bool
1993config MIPS_PGD_C0_CONTEXT
1994 bool
1995 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1996
1997#
1998# Set to y for ptrace access to watch registers.
1999#
2000config HARDWARE_WATCHPOINTS
2001 bool
2002 default y if CPU_MIPSR1 || CPU_MIPSR2
2003
2004menu "Kernel type"
2005
2006choice
2007 prompt "Kernel code model"
2008 help
2009 You should only select this option if you have a workload that
2010 actually benefits from 64-bit processing or if your machine has
2011 large memory. You will only be presented a single option in this
2012 menu if your system does not support both 32-bit and 64-bit kernels.
2013
2014config 32BIT
2015 bool "32-bit kernel"
2016 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2017 select TRAD_SIGNALS
2018 help
2019 Select this option if you want to build a 32-bit kernel.
2020
2021config 64BIT
2022 bool "64-bit kernel"
2023 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2024 help
2025 Select this option if you want to build a 64-bit kernel.
2026
2027endchoice
2028
2029config KVM_GUEST
2030 bool "KVM Guest Kernel"
2031 depends on BROKEN_ON_SMP
2032 help
2033 Select this option if building a guest kernel for KVM (Trap & Emulate)
2034 mode.
2035
2036config KVM_GUEST_TIMER_FREQ
2037 int "Count/Compare Timer Frequency (MHz)"
2038 depends on KVM_GUEST
2039 default 100
2040 help
2041 Set this to non-zero if building a guest kernel for KVM to skip RTC
2042 emulation when determining guest CPU Frequency. Instead, the guest's
2043 timer frequency is specified directly.
2044
2045choice
2046 prompt "Kernel page size"
2047 default PAGE_SIZE_4KB
2048
2049config PAGE_SIZE_4KB
2050 bool "4kB"
2051 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2052 help
2053 This option select the standard 4kB Linux page size. On some
2054 R3000-family processors this is the only available page size. Using
2055 4kB page size will minimize memory consumption and is therefore
2056 recommended for low memory systems.
2057
2058config PAGE_SIZE_8KB
2059 bool "8kB"
2060 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2061 help
2062 Using 8kB page size will result in higher performance kernel at
2063 the price of higher memory consumption. This option is available
2064 only on R8000 and cnMIPS processors. Note that you will need a
2065 suitable Linux distribution to support this.
2066
2067config PAGE_SIZE_16KB
2068 bool "16kB"
2069 depends on !CPU_R3000 && !CPU_TX39XX
2070 help
2071 Using 16kB page size will result in higher performance kernel at
2072 the price of higher memory consumption. This option is available on
2073 all non-R3000 family processors. Note that you will need a suitable
2074 Linux distribution to support this.
2075
2076config PAGE_SIZE_32KB
2077 bool "32kB"
2078 depends on CPU_CAVIUM_OCTEON
2079 help
2080 Using 32kB page size will result in higher performance kernel at
2081 the price of higher memory consumption. This option is available
2082 only on cnMIPS cores. Note that you will need a suitable Linux
2083 distribution to support this.
2084
2085config PAGE_SIZE_64KB
2086 bool "64kB"
2087 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
2088 help
2089 Using 64kB page size will result in higher performance kernel at
2090 the price of higher memory consumption. This option is available on
2091 all non-R3000 family processor. Not that at the time of this
2092 writing this option is still high experimental.
2093
2094endchoice
2095
2096config FORCE_MAX_ZONEORDER
2097 int "Maximum zone order"
2098 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2099 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2100 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2101 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2102 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2103 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2104 range 11 64
2105 default "11"
2106 help
2107 The kernel memory allocator divides physically contiguous memory
2108 blocks into "zones", where each zone is a power of two number of
2109 pages. This option selects the largest power of two that the kernel
2110 keeps in the memory allocator. If you need to allocate very large
2111 blocks of physically contiguous memory, then you may need to
2112 increase this value.
2113
2114 This config option is actually maximum order plus one. For example,
2115 a value of 11 means that the largest free memory block is 2^10 pages.
2116
2117 The page size is not necessarily 4KB. Keep this in mind
2118 when choosing a value for this option.
2119
2120config BOARD_SCACHE
2121 bool
2122
2123config IP22_CPU_SCACHE
2124 bool
2125 select BOARD_SCACHE
2126
2127#
2128# Support for a MIPS32 / MIPS64 style S-caches
2129#
2130config MIPS_CPU_SCACHE
2131 bool
2132 select BOARD_SCACHE
2133
2134config R5000_CPU_SCACHE
2135 bool
2136 select BOARD_SCACHE
2137
2138config RM7000_CPU_SCACHE
2139 bool
2140 select BOARD_SCACHE
2141
2142config SIBYTE_DMA_PAGEOPS
2143 bool "Use DMA to clear/copy pages"
2144 depends on CPU_SB1
2145 help
2146 Instead of using the CPU to zero and copy pages, use a Data Mover
2147 channel. These DMA channels are otherwise unused by the standard
2148 SiByte Linux port. Seems to give a small performance benefit.
2149
2150config CPU_HAS_PREFETCH
2151 bool
2152
2153config CPU_GENERIC_DUMP_TLB
2154 bool
2155 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2156
2157config CPU_R4K_FPU
2158 bool
2159 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2160
2161config CPU_R4K_CACHE_TLB
2162 bool
2163 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2164
2165config MIPS_MT_SMP
2166 bool "MIPS MT SMP support (1 TC on each available VPE)"
2167 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2168 select CPU_MIPSR2_IRQ_VI
2169 select CPU_MIPSR2_IRQ_EI
2170 select SYNC_R4K
2171 select MIPS_MT
2172 select SMP
2173 select SMP_UP
2174 select SYS_SUPPORTS_SMP
2175 select SYS_SUPPORTS_SCHED_SMT
2176 select MIPS_PERF_SHARED_TC_COUNTERS
2177 help
2178 This is a kernel model which is known as SMVP. This is supported
2179 on cores with the MT ASE and uses the available VPEs to implement
2180 virtual processors which supports SMP. This is equivalent to the
2181 Intel Hyperthreading feature. For further information go to
2182 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2183
2184config MIPS_MT
2185 bool
2186
2187config SCHED_SMT
2188 bool "SMT (multithreading) scheduler support"
2189 depends on SYS_SUPPORTS_SCHED_SMT
2190 default n
2191 help
2192 SMT scheduler support improves the CPU scheduler's decision making
2193 when dealing with MIPS MT enabled cores at a cost of slightly
2194 increased overhead in some places. If unsure say N here.
2195
2196config SYS_SUPPORTS_SCHED_SMT
2197 bool
2198
2199config SYS_SUPPORTS_MULTITHREADING
2200 bool
2201
2202config MIPS_MT_FPAFF
2203 bool "Dynamic FPU affinity for FP-intensive threads"
2204 default y
2205 depends on MIPS_MT_SMP
2206
2207config MIPSR2_TO_R6_EMULATOR
2208 bool "MIPS R2-to-R6 emulator"
2209 depends on CPU_MIPSR6 && !SMP
2210 default y
2211 help
2212 Choose this option if you want to run non-R6 MIPS userland code.
2213 Even if you say 'Y' here, the emulator will still be disabled by
2214 default. You can enable it using the 'mipsr2emu' kernel option.
2215 The only reason this is a build-time option is to save ~14K from the
2216 final kernel image.
2217comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2218 depends on SMP && CPU_MIPSR6
2219
2220config MIPS_VPE_LOADER
2221 bool "VPE loader support."
2222 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2223 select CPU_MIPSR2_IRQ_VI
2224 select CPU_MIPSR2_IRQ_EI
2225 select MIPS_MT
2226 help
2227 Includes a loader for loading an elf relocatable object
2228 onto another VPE and running it.
2229
2230config MIPS_VPE_LOADER_CMP
2231 bool
2232 default "y"
2233 depends on MIPS_VPE_LOADER && MIPS_CMP
2234
2235config MIPS_VPE_LOADER_MT
2236 bool
2237 default "y"
2238 depends on MIPS_VPE_LOADER && !MIPS_CMP
2239
2240config MIPS_VPE_LOADER_TOM
2241 bool "Load VPE program into memory hidden from linux"
2242 depends on MIPS_VPE_LOADER
2243 default y
2244 help
2245 The loader can use memory that is present but has been hidden from
2246 Linux using the kernel command line option "mem=xxMB". It's up to
2247 you to ensure the amount you put in the option and the space your
2248 program requires is less or equal to the amount physically present.
2249
2250config MIPS_VPE_APSP_API
2251 bool "Enable support for AP/SP API (RTLX)"
2252 depends on MIPS_VPE_LOADER
2253 help
2254
2255config MIPS_VPE_APSP_API_CMP
2256 bool
2257 default "y"
2258 depends on MIPS_VPE_APSP_API && MIPS_CMP
2259
2260config MIPS_VPE_APSP_API_MT
2261 bool
2262 default "y"
2263 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2264
2265config MIPS_CMP
2266 bool "MIPS CMP framework support (DEPRECATED)"
2267 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2268 select SMP
2269 select SYNC_R4K
2270 select SYS_SUPPORTS_SMP
2271 select WEAK_ORDERING
2272 default n
2273 help
2274 Select this if you are using a bootloader which implements the "CMP
2275 framework" protocol (ie. YAMON) and want your kernel to make use of
2276 its ability to start secondary CPUs.
2277
2278 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2279 instead of this.
2280
2281config MIPS_CPS
2282 bool "MIPS Coherent Processing System support"
2283 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2284 select MIPS_CM
2285 select MIPS_CPC
2286 select MIPS_CPS_PM if HOTPLUG_CPU
2287 select SMP
2288 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2289 select SYS_SUPPORTS_HOTPLUG_CPU
2290 select SYS_SUPPORTS_SMP
2291 select WEAK_ORDERING
2292 help
2293 Select this if you wish to run an SMP kernel across multiple cores
2294 within a MIPS Coherent Processing System. When this option is
2295 enabled the kernel will probe for other cores and boot them with
2296 no external assistance. It is safe to enable this when hardware
2297 support is unavailable.
2298
2299config MIPS_CPS_PM
2300 depends on MIPS_CPS
2301 select MIPS_CPC
2302 bool
2303
2304config MIPS_CM
2305 bool
2306
2307config MIPS_CPC
2308 bool
2309
2310config SB1_PASS_2_WORKAROUNDS
2311 bool
2312 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2313 default y
2314
2315config SB1_PASS_2_1_WORKAROUNDS
2316 bool
2317 depends on CPU_SB1 && CPU_SB1_PASS_2
2318 default y
2319
2320
2321config ARCH_PHYS_ADDR_T_64BIT
2322 bool
2323
2324choice
2325 prompt "SmartMIPS or microMIPS ASE support"
2326
2327config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2328 bool "None"
2329 help
2330 Select this if you want neither microMIPS nor SmartMIPS support
2331
2332config CPU_HAS_SMARTMIPS
2333 depends on SYS_SUPPORTS_SMARTMIPS
2334 bool "SmartMIPS"
2335 help
2336 SmartMIPS is a extension of the MIPS32 architecture aimed at
2337 increased security at both hardware and software level for
2338 smartcards. Enabling this option will allow proper use of the
2339 SmartMIPS instructions by Linux applications. However a kernel with
2340 this option will not work on a MIPS core without SmartMIPS core. If
2341 you don't know you probably don't have SmartMIPS and should say N
2342 here.
2343
2344config CPU_MICROMIPS
2345 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2346 bool "microMIPS"
2347 help
2348 When this option is enabled the kernel will be built using the
2349 microMIPS ISA
2350
2351endchoice
2352
2353config CPU_HAS_MSA
2354 bool "Support for the MIPS SIMD Architecture"
2355 depends on CPU_SUPPORTS_MSA
2356 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2357 help
2358 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2359 and a set of SIMD instructions to operate on them. When this option
2360 is enabled the kernel will support allocating & switching MSA
2361 vector register contexts. If you know that your kernel will only be
2362 running on CPUs which do not support MSA or that your userland will
2363 not be making use of it then you may wish to say N here to reduce
2364 the size & complexity of your kernel.
2365
2366 If unsure, say Y.
2367
2368config CPU_HAS_WB
2369 bool
2370
2371config XKS01
2372 bool
2373
2374#
2375# Vectored interrupt mode is an R2 feature
2376#
2377config CPU_MIPSR2_IRQ_VI
2378 bool
2379
2380#
2381# Extended interrupt mode is an R2 feature
2382#
2383config CPU_MIPSR2_IRQ_EI
2384 bool
2385
2386config CPU_HAS_SYNC
2387 bool
2388 depends on !CPU_R3000
2389 default y
2390
2391#
2392# CPU non-features
2393#
2394config CPU_DADDI_WORKAROUNDS
2395 bool
2396
2397config CPU_R4000_WORKAROUNDS
2398 bool
2399 select CPU_R4400_WORKAROUNDS
2400
2401config CPU_R4400_WORKAROUNDS
2402 bool
2403
2404#
2405# - Highmem only makes sense for the 32-bit kernel.
2406# - The current highmem code will only work properly on physically indexed
2407# caches such as R3000, SB1, R7000 or those that look like they're virtually
2408# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2409# moment we protect the user and offer the highmem option only on machines
2410# where it's known to be safe. This will not offer highmem on a few systems
2411# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2412# indexed CPUs but we're playing safe.
2413# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2414# know they might have memory configurations that could make use of highmem
2415# support.
2416#
2417config HIGHMEM
2418 bool "High Memory Support"
2419 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2420
2421config CPU_SUPPORTS_HIGHMEM
2422 bool
2423
2424config SYS_SUPPORTS_HIGHMEM
2425 bool
2426
2427config SYS_SUPPORTS_SMARTMIPS
2428 bool
2429
2430config SYS_SUPPORTS_MICROMIPS
2431 bool
2432
2433config SYS_SUPPORTS_MIPS16
2434 bool
2435 help
2436 This option must be set if a kernel might be executed on a MIPS16-
2437 enabled CPU even if MIPS16 is not actually being used. In other
2438 words, it makes the kernel MIPS16-tolerant.
2439
2440config CPU_SUPPORTS_MSA
2441 bool
2442
2443config ARCH_FLATMEM_ENABLE
2444 def_bool y
2445 depends on !NUMA && !CPU_LOONGSON2
2446
2447config ARCH_DISCONTIGMEM_ENABLE
2448 bool
2449 default y if SGI_IP27
2450 help
2451 Say Y to support efficient handling of discontiguous physical memory,
2452 for architectures which are either NUMA (Non-Uniform Memory Access)
2453 or have huge holes in the physical address space for other reasons.
2454 See <file:Documentation/vm/numa> for more.
2455
2456config ARCH_SPARSEMEM_ENABLE
2457 bool
2458 select SPARSEMEM_STATIC
2459
2460config NUMA
2461 bool "NUMA Support"
2462 depends on SYS_SUPPORTS_NUMA
2463 help
2464 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2465 Access). This option improves performance on systems with more
2466 than two nodes; on two node systems it is generally better to
2467 leave it disabled; on single node systems disable this option
2468 disabled.
2469
2470config SYS_SUPPORTS_NUMA
2471 bool
2472
2473config NODES_SHIFT
2474 int
2475 default "6"
2476 depends on NEED_MULTIPLE_NODES
2477
2478config HW_PERF_EVENTS
2479 bool "Enable hardware performance counter support for perf events"
2480 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2481 default y
2482 help
2483 Enable hardware performance counter support for perf events. If
2484 disabled, perf events will use software events only.
2485
2486source "mm/Kconfig"
2487
2488config SMP
2489 bool "Multi-Processing support"
2490 depends on SYS_SUPPORTS_SMP
2491 help
2492 This enables support for systems with more than one CPU. If you have
2493 a system with only one CPU, say N. If you have a system with more
2494 than one CPU, say Y.
2495
2496 If you say N here, the kernel will run on uni- and multiprocessor
2497 machines, but will use only one CPU of a multiprocessor machine. If
2498 you say Y here, the kernel will run on many, but not all,
2499 uniprocessor machines. On a uniprocessor machine, the kernel
2500 will run faster if you say N here.
2501
2502 People using multiprocessor machines who say Y here should also say
2503 Y to "Enhanced Real Time Clock Support", below.
2504
2505 See also the SMP-HOWTO available at
2506 <http://www.tldp.org/docs.html#howto>.
2507
2508 If you don't know what to do here, say N.
2509
2510config SMP_UP
2511 bool
2512
2513config SYS_SUPPORTS_MIPS_CMP
2514 bool
2515
2516config SYS_SUPPORTS_MIPS_CPS
2517 bool
2518
2519config SYS_SUPPORTS_SMP
2520 bool
2521
2522config NR_CPUS_DEFAULT_4
2523 bool
2524
2525config NR_CPUS_DEFAULT_8
2526 bool
2527
2528config NR_CPUS_DEFAULT_16
2529 bool
2530
2531config NR_CPUS_DEFAULT_32
2532 bool
2533
2534config NR_CPUS_DEFAULT_64
2535 bool
2536
2537config NR_CPUS
2538 int "Maximum number of CPUs (2-256)"
2539 range 2 256
2540 depends on SMP
2541 default "4" if NR_CPUS_DEFAULT_4
2542 default "8" if NR_CPUS_DEFAULT_8
2543 default "16" if NR_CPUS_DEFAULT_16
2544 default "32" if NR_CPUS_DEFAULT_32
2545 default "64" if NR_CPUS_DEFAULT_64
2546 help
2547 This allows you to specify the maximum number of CPUs which this
2548 kernel will support. The maximum supported value is 32 for 32-bit
2549 kernel and 64 for 64-bit kernels; the minimum value which makes
2550 sense is 1 for Qemu (useful only for kernel debugging purposes)
2551 and 2 for all others.
2552
2553 This is purely to save memory - each supported CPU adds
2554 approximately eight kilobytes to the kernel image. For best
2555 performance should round up your number of processors to the next
2556 power of two.
2557
2558config MIPS_PERF_SHARED_TC_COUNTERS
2559 bool
2560
2561#
2562# Timer Interrupt Frequency Configuration
2563#
2564
2565choice
2566 prompt "Timer frequency"
2567 default HZ_250
2568 help
2569 Allows the configuration of the timer frequency.
2570
2571 config HZ_24
2572 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2573
2574 config HZ_48
2575 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2576
2577 config HZ_100
2578 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2579
2580 config HZ_128
2581 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2582
2583 config HZ_250
2584 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2585
2586 config HZ_256
2587 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2588
2589 config HZ_1000
2590 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2591
2592 config HZ_1024
2593 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2594
2595endchoice
2596
2597config SYS_SUPPORTS_24HZ
2598 bool
2599
2600config SYS_SUPPORTS_48HZ
2601 bool
2602
2603config SYS_SUPPORTS_100HZ
2604 bool
2605
2606config SYS_SUPPORTS_128HZ
2607 bool
2608
2609config SYS_SUPPORTS_250HZ
2610 bool
2611
2612config SYS_SUPPORTS_256HZ
2613 bool
2614
2615config SYS_SUPPORTS_1000HZ
2616 bool
2617
2618config SYS_SUPPORTS_1024HZ
2619 bool
2620
2621config SYS_SUPPORTS_ARBIT_HZ
2622 bool
2623 default y if !SYS_SUPPORTS_24HZ && \
2624 !SYS_SUPPORTS_48HZ && \
2625 !SYS_SUPPORTS_100HZ && \
2626 !SYS_SUPPORTS_128HZ && \
2627 !SYS_SUPPORTS_250HZ && \
2628 !SYS_SUPPORTS_256HZ && \
2629 !SYS_SUPPORTS_1000HZ && \
2630 !SYS_SUPPORTS_1024HZ
2631
2632config HZ
2633 int
2634 default 24 if HZ_24
2635 default 48 if HZ_48
2636 default 100 if HZ_100
2637 default 128 if HZ_128
2638 default 250 if HZ_250
2639 default 256 if HZ_256
2640 default 1000 if HZ_1000
2641 default 1024 if HZ_1024
2642
2643config SCHED_HRTICK
2644 def_bool HIGH_RES_TIMERS
2645
2646source "kernel/Kconfig.preempt"
2647
2648config KEXEC
2649 bool "Kexec system call"
2650 select KEXEC_CORE
2651 help
2652 kexec is a system call that implements the ability to shutdown your
2653 current kernel, and to start another kernel. It is like a reboot
2654 but it is independent of the system firmware. And like a reboot
2655 you can start any kernel with it, not just Linux.
2656
2657 The name comes from the similarity to the exec system call.
2658
2659 It is an ongoing process to be certain the hardware in a machine
2660 is properly shutdown, so do not be surprised if this code does not
2661 initially work for you. As of this writing the exact hardware
2662 interface is strongly in flux, so no good recommendation can be
2663 made.
2664
2665config CRASH_DUMP
2666 bool "Kernel crash dumps"
2667 help
2668 Generate crash dump after being started by kexec.
2669 This should be normally only set in special crash dump kernels
2670 which are loaded in the main kernel with kexec-tools into
2671 a specially reserved region and then later executed after
2672 a crash by kdump/kexec. The crash dump kernel must be compiled
2673 to a memory address not used by the main kernel or firmware using
2674 PHYSICAL_START.
2675
2676config PHYSICAL_START
2677 hex "Physical address where the kernel is loaded"
2678 default "0xffffffff84000000" if 64BIT
2679 default "0x84000000" if 32BIT
2680 depends on CRASH_DUMP
2681 help
2682 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2683 If you plan to use kernel for capturing the crash dump change
2684 this value to start of the reserved region (the "X" value as
2685 specified in the "crashkernel=YM@XM" command line boot parameter
2686 passed to the panic-ed kernel).
2687
2688config SECCOMP
2689 bool "Enable seccomp to safely compute untrusted bytecode"
2690 depends on PROC_FS
2691 default y
2692 help
2693 This kernel feature is useful for number crunching applications
2694 that may need to compute untrusted bytecode during their
2695 execution. By using pipes or other transports made available to
2696 the process as file descriptors supporting the read/write
2697 syscalls, it's possible to isolate those applications in
2698 their own address space using seccomp. Once seccomp is
2699 enabled via /proc/<pid>/seccomp, it cannot be disabled
2700 and the task is only allowed to execute a few safe syscalls
2701 defined by each seccomp mode.
2702
2703 If unsure, say Y. Only embedded should say N here.
2704
2705config MIPS_O32_FP64_SUPPORT
2706 bool "Support for O32 binaries using 64-bit FP"
2707 depends on 32BIT || MIPS32_O32
2708 help
2709 When this is enabled, the kernel will support use of 64-bit floating
2710 point registers with binaries using the O32 ABI along with the
2711 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2712 32-bit MIPS systems this support is at the cost of increasing the
2713 size and complexity of the compiled FPU emulator. Thus if you are
2714 running a MIPS32 system and know that none of your userland binaries
2715 will require 64-bit floating point, you may wish to reduce the size
2716 of your kernel & potentially improve FP emulation performance by
2717 saying N here.
2718
2719 Although binutils currently supports use of this flag the details
2720 concerning its effect upon the O32 ABI in userland are still being
2721 worked on. In order to avoid userland becoming dependant upon current
2722 behaviour before the details have been finalised, this option should
2723 be considered experimental and only enabled by those working upon
2724 said details.
2725
2726 If unsure, say N.
2727
2728config USE_OF
2729 bool
2730 select OF
2731 select OF_EARLY_FLATTREE
2732 select IRQ_DOMAIN
2733
2734config BUILTIN_DTB
2735 bool
2736
2737choice
2738 prompt "Kernel appended dtb support" if USE_OF
2739 default MIPS_NO_APPENDED_DTB
2740
2741 config MIPS_NO_APPENDED_DTB
2742 bool "None"
2743 help
2744 Do not enable appended dtb support.
2745
2746 config MIPS_ELF_APPENDED_DTB
2747 bool "vmlinux"
2748 help
2749 With this option, the boot code will look for a device tree binary
2750 DTB) included in the vmlinux ELF section .appended_dtb. By default
2751 it is empty and the DTB can be appended using binutils command
2752 objcopy:
2753
2754 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2755
2756 This is meant as a backward compatiblity convenience for those
2757 systems with a bootloader that can't be upgraded to accommodate
2758 the documented boot protocol using a device tree.
2759
2760 config MIPS_RAW_APPENDED_DTB
2761 bool "vmlinux.bin"
2762 help
2763 With this option, the boot code will look for a device tree binary
2764 DTB) appended to raw vmlinux.bin (without decompressor).
2765 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2766
2767 This is meant as a backward compatibility convenience for those
2768 systems with a bootloader that can't be upgraded to accommodate
2769 the documented boot protocol using a device tree.
2770
2771 Beware that there is very little in terms of protection against
2772 this option being confused by leftover garbage in memory that might
2773 look like a DTB header after a reboot if no actual DTB is appended
2774 to vmlinux.bin. Do not leave this option active in a production kernel
2775 if you don't intend to always append a DTB.
2776
2777 config MIPS_ZBOOT_APPENDED_DTB
2778 bool "vmlinuz.bin"
2779 depends on SYS_SUPPORTS_ZBOOT
2780 help
2781 With this option, the boot code will look for a device tree binary
2782 DTB) appended to raw vmlinuz.bin (with decompressor).
2783 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2784
2785 This is meant as a backward compatibility convenience for those
2786 systems with a bootloader that can't be upgraded to accommodate
2787 the documented boot protocol using a device tree.
2788
2789 Beware that there is very little in terms of protection against
2790 this option being confused by leftover garbage in memory that might
2791 look like a DTB header after a reboot if no actual DTB is appended
2792 to vmlinuz.bin. Do not leave this option active in a production kernel
2793 if you don't intend to always append a DTB.
2794endchoice
2795
2796choice
2797 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2798 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2799 !MIPS_MALTA && !MIPS_SEAD3 && \
2800 !CAVIUM_OCTEON_SOC
2801 default MIPS_CMDLINE_FROM_BOOTLOADER
2802
2803 config MIPS_CMDLINE_FROM_DTB
2804 depends on USE_OF
2805 bool "Dtb kernel arguments if available"
2806
2807 config MIPS_CMDLINE_DTB_EXTEND
2808 depends on USE_OF
2809 bool "Extend dtb kernel arguments with bootloader arguments"
2810
2811 config MIPS_CMDLINE_FROM_BOOTLOADER
2812 bool "Bootloader kernel arguments if available"
2813endchoice
2814
2815endmenu
2816
2817config LOCKDEP_SUPPORT
2818 bool
2819 default y
2820
2821config STACKTRACE_SUPPORT
2822 bool
2823 default y
2824
2825config HAVE_LATENCYTOP_SUPPORT
2826 bool
2827 default y
2828
2829config PGTABLE_LEVELS
2830 int
2831 default 3 if 64BIT && !PAGE_SIZE_64KB
2832 default 2
2833
2834source "init/Kconfig"
2835
2836source "kernel/Kconfig.freezer"
2837
2838menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2839
2840config HW_HAS_EISA
2841 bool
2842config HW_HAS_PCI
2843 bool
2844
2845config PCI
2846 bool "Support for PCI controller"
2847 depends on HW_HAS_PCI
2848 select PCI_DOMAINS
2849 select NO_GENERIC_PCI_IOPORT_MAP
2850 help
2851 Find out whether you have a PCI motherboard. PCI is the name of a
2852 bus system, i.e. the way the CPU talks to the other stuff inside
2853 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2854 say Y, otherwise N.
2855
2856config HT_PCI
2857 bool "Support for HT-linked PCI"
2858 default y
2859 depends on CPU_LOONGSON3
2860 select PCI
2861 select PCI_DOMAINS
2862 help
2863 Loongson family machines use Hyper-Transport bus for inter-core
2864 connection and device connection. The PCI bus is a subordinate
2865 linked at HT. Choose Y for Loongson-3 based machines.
2866
2867config PCI_DOMAINS
2868 bool
2869
2870source "drivers/pci/Kconfig"
2871
2872#
2873# ISA support is now enabled via select. Too many systems still have the one
2874# or other ISA chip on the board that users don't know about so don't expect
2875# users to choose the right thing ...
2876#
2877config ISA
2878 bool
2879
2880config EISA
2881 bool "EISA support"
2882 depends on HW_HAS_EISA
2883 select ISA
2884 select GENERIC_ISA_DMA
2885 ---help---
2886 The Extended Industry Standard Architecture (EISA) bus was
2887 developed as an open alternative to the IBM MicroChannel bus.
2888
2889 The EISA bus provided some of the features of the IBM MicroChannel
2890 bus while maintaining backward compatibility with cards made for
2891 the older ISA bus. The EISA bus saw limited use between 1988 and
2892 1995 when it was made obsolete by the PCI bus.
2893
2894 Say Y here if you are building a kernel for an EISA-based machine.
2895
2896 Otherwise, say N.
2897
2898source "drivers/eisa/Kconfig"
2899
2900config TC
2901 bool "TURBOchannel support"
2902 depends on MACH_DECSTATION
2903 help
2904 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2905 processors. TURBOchannel programming specifications are available
2906 at:
2907 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2908 and:
2909 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2910 Linux driver support status is documented at:
2911 <http://www.linux-mips.org/wiki/DECstation>
2912
2913config MMU
2914 bool
2915 default y
2916
2917config I8253
2918 bool
2919 select CLKSRC_I8253
2920 select CLKEVT_I8253
2921 select MIPS_EXTERNAL_TIMER
2922
2923config ZONE_DMA
2924 bool
2925
2926config ZONE_DMA32
2927 bool
2928
2929source "drivers/pcmcia/Kconfig"
2930
2931config RAPIDIO
2932 tristate "RapidIO support"
2933 depends on PCI
2934 default n
2935 help
2936 If you say Y here, the kernel will include drivers and
2937 infrastructure code to support RapidIO interconnect devices.
2938
2939source "drivers/rapidio/Kconfig"
2940
2941endmenu
2942
2943menu "Executable file formats"
2944
2945source "fs/Kconfig.binfmt"
2946
2947config TRAD_SIGNALS
2948 bool
2949
2950config MIPS32_COMPAT
2951 bool
2952
2953config COMPAT
2954 bool
2955
2956config SYSVIPC_COMPAT
2957 bool
2958
2959config MIPS32_O32
2960 bool "Kernel support for o32 binaries"
2961 depends on 64BIT
2962 select ARCH_WANT_OLD_COMPAT_IPC
2963 select COMPAT
2964 select MIPS32_COMPAT
2965 select SYSVIPC_COMPAT if SYSVIPC
2966 help
2967 Select this option if you want to run o32 binaries. These are pure
2968 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2969 existing binaries are in this format.
2970
2971 If unsure, say Y.
2972
2973config MIPS32_N32
2974 bool "Kernel support for n32 binaries"
2975 depends on 64BIT
2976 select COMPAT
2977 select MIPS32_COMPAT
2978 select SYSVIPC_COMPAT if SYSVIPC
2979 help
2980 Select this option if you want to run n32 binaries. These are
2981 64-bit binaries using 32-bit quantities for addressing and certain
2982 data that would normally be 64-bit. They are used in special
2983 cases.
2984
2985 If unsure, say N.
2986
2987config BINFMT_ELF32
2988 bool
2989 default y if MIPS32_O32 || MIPS32_N32
2990
2991endmenu
2992
2993menu "Power management options"
2994
2995config ARCH_HIBERNATION_POSSIBLE
2996 def_bool y
2997 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2998
2999config ARCH_SUSPEND_POSSIBLE
3000 def_bool y
3001 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3002
3003source "kernel/power/Kconfig"
3004
3005endmenu
3006
3007config MIPS_EXTERNAL_TIMER
3008 bool
3009
3010menu "CPU Power Management"
3011
3012if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3013source "drivers/cpufreq/Kconfig"
3014endif
3015
3016source "drivers/cpuidle/Kconfig"
3017
3018endmenu
3019
3020source "net/Kconfig"
3021
3022source "drivers/Kconfig"
3023
3024source "drivers/firmware/Kconfig"
3025
3026source "fs/Kconfig"
3027
3028source "arch/mips/Kconfig.debug"
3029
3030source "security/Kconfig"
3031
3032source "crypto/Kconfig"
3033
3034source "lib/Kconfig"
3035
3036source "arch/mips/kvm/Kconfig"
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3 bool
4 default y
5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_HAS_CPU_CACHE_ALIASING
8 select ARCH_HAS_CPU_FINALIZE_INIT
9 select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
10 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
11 select ARCH_HAS_DMA_OPS if MACH_JAZZ
12 select ARCH_HAS_FORTIFY_SOURCE
13 select ARCH_HAS_KCOV
14 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
15 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
16 select ARCH_HAS_STRNCPY_FROM_USER
17 select ARCH_HAS_STRNLEN_USER
18 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
19 select ARCH_HAS_UBSAN
20 select ARCH_HAS_GCOV_PROFILE_ALL
21 select ARCH_KEEP_MEMBLOCK
22 select ARCH_USE_BUILTIN_BSWAP
23 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
24 select ARCH_USE_MEMTEST
25 select ARCH_USE_QUEUED_RWLOCKS
26 select ARCH_USE_QUEUED_SPINLOCKS
27 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
28 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
29 select ARCH_WANT_IPC_PARSE_VERSION
30 select ARCH_WANT_LD_ORPHAN_WARN
31 select BUILDTIME_TABLE_SORT
32 select CLONE_BACKWARDS
33 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
34 select CPU_PM if CPU_IDLE || SUSPEND
35 select GENERIC_ATOMIC64 if !64BIT
36 select GENERIC_CMOS_UPDATE
37 select GENERIC_CPU_AUTOPROBE
38 select GENERIC_GETTIMEOFDAY
39 select GENERIC_IOMAP
40 select GENERIC_IRQ_PROBE
41 select GENERIC_IRQ_SHOW
42 select GENERIC_ISA_DMA if EISA
43 select GENERIC_LIB_ASHLDI3
44 select GENERIC_LIB_ASHRDI3
45 select GENERIC_LIB_CMPDI2
46 select GENERIC_LIB_LSHRDI3
47 select GENERIC_LIB_UCMPDI2
48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
49 select GENERIC_SMP_IDLE_THREAD
50 select GENERIC_IDLE_POLL_SETUP
51 select GENERIC_TIME_VSYSCALL
52 select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
53 select HAS_IOPORT if !NO_IOPORT_MAP || ISA
54 select HAVE_ARCH_COMPILER_H
55 select HAVE_ARCH_JUMP_LABEL
56 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
57 select HAVE_ARCH_MMAP_RND_BITS if MMU
58 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
59 select HAVE_ARCH_SECCOMP_FILTER
60 select HAVE_ARCH_TRACEHOOK
61 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
62 select HAVE_ASM_MODVERSIONS
63 select HAVE_CONTEXT_TRACKING_USER
64 select HAVE_TIF_NOHZ
65 select HAVE_C_RECORDMCOUNT
66 select HAVE_DEBUG_KMEMLEAK
67 select HAVE_DEBUG_STACKOVERFLOW
68 select HAVE_DMA_CONTIGUOUS
69 select HAVE_DYNAMIC_FTRACE
70 select HAVE_EBPF_JIT if !CPU_MICROMIPS
71 select HAVE_EXIT_THREAD
72 select HAVE_GUP_FAST
73 select HAVE_FTRACE_MCOUNT_RECORD
74 select HAVE_FUNCTION_GRAPH_TRACER
75 select HAVE_FUNCTION_TRACER
76 select HAVE_GCC_PLUGINS
77 select HAVE_GENERIC_VDSO
78 select HAVE_IOREMAP_PROT
79 select HAVE_IRQ_EXIT_ON_IRQ_STACK
80 select HAVE_IRQ_TIME_ACCOUNTING
81 select HAVE_KPROBES
82 select HAVE_KRETPROBES
83 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
84 select HAVE_MOD_ARCH_SPECIFIC
85 select HAVE_NMI
86 select HAVE_PAGE_SIZE_4KB if !CPU_LOONGSON2EF && !CPU_LOONGSON64
87 select HAVE_PAGE_SIZE_16KB if !CPU_R3000
88 select HAVE_PAGE_SIZE_64KB if !CPU_R3000
89 select HAVE_PERF_EVENTS
90 select HAVE_PERF_REGS
91 select HAVE_PERF_USER_STACK_DUMP
92 select HAVE_REGS_AND_STACK_ACCESS_API
93 select HAVE_RSEQ
94 select HAVE_SPARSE_SYSCALL_NR
95 select HAVE_STACKPROTECTOR
96 select HAVE_SYSCALL_TRACEPOINTS
97 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
98 select IRQ_FORCED_THREADING
99 select ISA if EISA
100 select LOCK_MM_AND_FIND_VMA
101 select MODULES_USE_ELF_REL if MODULES
102 select MODULES_USE_ELF_RELA if MODULES && 64BIT
103 select PERF_USE_VMALLOC
104 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
105 select RTC_LIB
106 select SYSCTL_EXCEPTION_TRACE
107 select TRACE_IRQFLAGS_SUPPORT
108 select ARCH_HAS_ELFCORE_COMPAT
109 select HAVE_ARCH_KCSAN if 64BIT
110
111config MIPS_FIXUP_BIGPHYS_ADDR
112 bool
113
114config MIPS_GENERIC
115 bool
116
117config MACH_GENERIC_CORE
118 bool
119
120config MACH_INGENIC
121 bool
122 select SYS_SUPPORTS_32BIT_KERNEL
123 select SYS_SUPPORTS_LITTLE_ENDIAN
124 select SYS_SUPPORTS_ZBOOT
125 select DMA_NONCOHERENT
126 select IRQ_MIPS_CPU
127 select PINCTRL
128 select GPIOLIB
129 select COMMON_CLK
130 select GENERIC_IRQ_CHIP
131 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
132 select USE_OF
133 select CPU_SUPPORTS_CPUFREQ
134 select MIPS_EXTERNAL_TIMER
135
136menu "Machine selection"
137
138choice
139 prompt "System type"
140 default MIPS_GENERIC_KERNEL
141
142config MIPS_GENERIC_KERNEL
143 bool "Generic board-agnostic MIPS kernel"
144 select MIPS_GENERIC
145 select BOOT_RAW
146 select BUILTIN_DTB
147 select CEVT_R4K
148 select CLKSRC_MIPS_GIC
149 select COMMON_CLK
150 select CPU_MIPSR2_IRQ_EI
151 select CPU_MIPSR2_IRQ_VI
152 select CSRC_R4K
153 select DMA_NONCOHERENT
154 select HAVE_PCI
155 select IRQ_MIPS_CPU
156 select MACH_GENERIC_CORE
157 select MIPS_AUTO_PFN_OFFSET
158 select MIPS_CPU_SCACHE
159 select MIPS_GIC
160 select MIPS_L1_CACHE_SHIFT_7
161 select NO_EXCEPT_FILL
162 select PCI_DRIVERS_GENERIC
163 select SMP_UP if SMP
164 select SWAP_IO_SPACE
165 select SYS_HAS_CPU_MIPS32_R1
166 select SYS_HAS_CPU_MIPS32_R2
167 select SYS_HAS_CPU_MIPS32_R5
168 select SYS_HAS_CPU_MIPS32_R6
169 select SYS_HAS_CPU_MIPS64_R1
170 select SYS_HAS_CPU_MIPS64_R2
171 select SYS_HAS_CPU_MIPS64_R5
172 select SYS_HAS_CPU_MIPS64_R6
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_BIG_ENDIAN
176 select SYS_SUPPORTS_HIGHMEM
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_MICROMIPS
179 select SYS_SUPPORTS_MIPS16
180 select SYS_SUPPORTS_MIPS_CPS
181 select SYS_SUPPORTS_MULTITHREADING
182 select SYS_SUPPORTS_RELOCATABLE
183 select SYS_SUPPORTS_SMARTMIPS
184 select SYS_SUPPORTS_ZBOOT
185 select UHI_BOOT
186 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
187 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
188 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
189 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
190 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
191 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
192 select USE_OF
193 help
194 Select this to build a kernel which aims to support multiple boards,
195 generally using a flattened device tree passed from the bootloader
196 using the boot protocol defined in the UHI (Unified Hosting
197 Interface) specification.
198
199config MIPS_ALCHEMY
200 bool "Alchemy processor based machines"
201 select PHYS_ADDR_T_64BIT
202 select CEVT_R4K
203 select CSRC_R4K
204 select IRQ_MIPS_CPU
205 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is
206 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
207 select SYS_HAS_CPU_MIPS32_R1
208 select SYS_SUPPORTS_32BIT_KERNEL
209 select SYS_SUPPORTS_APM_EMULATION
210 select GPIOLIB
211 select SYS_SUPPORTS_ZBOOT
212 select COMMON_CLK
213
214config ATH25
215 bool "Atheros AR231x/AR531x SoC support"
216 select CEVT_R4K
217 select CSRC_R4K
218 select DMA_NONCOHERENT
219 select IRQ_MIPS_CPU
220 select IRQ_DOMAIN
221 select SYS_HAS_CPU_MIPS32_R1
222 select SYS_SUPPORTS_BIG_ENDIAN
223 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_HAS_EARLY_PRINTK
225 help
226 Support for Atheros AR231x and Atheros AR531x based boards
227
228config ATH79
229 bool "Atheros AR71XX/AR724X/AR913X based boards"
230 select ARCH_HAS_RESET_CONTROLLER
231 select BOOT_RAW
232 select CEVT_R4K
233 select CSRC_R4K
234 select DMA_NONCOHERENT
235 select GPIOLIB
236 select PINCTRL
237 select COMMON_CLK
238 select IRQ_MIPS_CPU
239 select SYS_HAS_CPU_MIPS32_R2
240 select SYS_HAS_EARLY_PRINTK
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_BIG_ENDIAN
243 select SYS_SUPPORTS_MIPS16
244 select SYS_SUPPORTS_ZBOOT_UART_PROM
245 select USE_OF
246 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
247 help
248 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
249
250config BMIPS_GENERIC
251 bool "Broadcom Generic BMIPS kernel"
252 select ARCH_HAS_RESET_CONTROLLER
253 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
254 select BOOT_RAW
255 select NO_EXCEPT_FILL
256 select USE_OF
257 select CEVT_R4K
258 select CSRC_R4K
259 select SYNC_R4K
260 select COMMON_CLK
261 select BCM6345_L1_IRQ
262 select BCM7038_L1_IRQ
263 select BCM7120_L2_IRQ
264 select BRCMSTB_L2_IRQ
265 select IRQ_MIPS_CPU
266 select DMA_NONCOHERENT
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269 select SYS_SUPPORTS_BIG_ENDIAN
270 select SYS_SUPPORTS_HIGHMEM
271 select SYS_HAS_CPU_BMIPS32_3300
272 select SYS_HAS_CPU_BMIPS4350
273 select SYS_HAS_CPU_BMIPS4380
274 select SYS_HAS_CPU_BMIPS5000
275 select SWAP_IO_SPACE
276 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
277 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
278 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
279 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
280 select HARDIRQS_SW_RESEND
281 select HAVE_PCI
282 select PCI_DRIVERS_GENERIC
283 select FW_CFE
284 help
285 Build a generic DT-based kernel image that boots on select
286 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
287 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
288 must be set appropriately for your board.
289
290config BCM47XX
291 bool "Broadcom BCM47XX based boards"
292 select BOOT_RAW
293 select CEVT_R4K
294 select CSRC_R4K
295 select DMA_NONCOHERENT
296 select HAVE_PCI
297 select IRQ_MIPS_CPU
298 select SYS_HAS_CPU_MIPS32_R1
299 select NO_EXCEPT_FILL
300 select SYS_SUPPORTS_32BIT_KERNEL
301 select SYS_SUPPORTS_LITTLE_ENDIAN
302 select SYS_SUPPORTS_MIPS16
303 select SYS_SUPPORTS_ZBOOT
304 select SYS_HAS_EARLY_PRINTK
305 select USE_GENERIC_EARLY_PRINTK_8250
306 select GPIOLIB
307 select LEDS_GPIO_REGISTER
308 select BCM47XX_NVRAM
309 select BCM47XX_SPROM
310 select BCM47XX_SSB if !BCM47XX_BCMA
311 help
312 Support for BCM47XX based boards
313
314config BCM63XX
315 bool "Broadcom BCM63XX based boards"
316 select BOOT_RAW
317 select CEVT_R4K
318 select CSRC_R4K
319 select SYNC_R4K
320 select DMA_NONCOHERENT
321 select IRQ_MIPS_CPU
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_HAS_EARLY_PRINTK
325 select SYS_HAS_CPU_BMIPS32_3300
326 select SYS_HAS_CPU_BMIPS4350
327 select SYS_HAS_CPU_BMIPS4380
328 select SWAP_IO_SPACE
329 select GPIOLIB
330 select MIPS_L1_CACHE_SHIFT_4
331 select HAVE_LEGACY_CLK
332 help
333 Support for BCM63XX based boards
334
335config MIPS_COBALT
336 bool "Cobalt Server"
337 select CEVT_R4K
338 select CSRC_R4K
339 select CEVT_GT641XX
340 select DMA_NONCOHERENT
341 select FORCE_PCI
342 select I8253
343 select I8259
344 select IRQ_MIPS_CPU
345 select IRQ_GT641XX
346 select PCI_GT64XXX_PCI0
347 select SYS_HAS_CPU_NEVADA
348 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_LITTLE_ENDIAN
352 select USE_GENERIC_EARLY_PRINTK_8250
353
354config MACH_DECSTATION
355 bool "DECstations"
356 select BOOT_ELF32
357 select CEVT_DS1287
358 select CEVT_R4K if CPU_R4X00
359 select CSRC_IOASIC
360 select CSRC_R4K if CPU_R4X00
361 select CPU_DADDI_WORKAROUNDS if 64BIT
362 select CPU_R4000_WORKAROUNDS if 64BIT
363 select CPU_R4400_WORKAROUNDS if 64BIT
364 select DMA_NONCOHERENT
365 select NO_IOPORT_MAP
366 select IRQ_MIPS_CPU
367 select SYS_HAS_CPU_R3000
368 select SYS_HAS_CPU_R4X00
369 select SYS_SUPPORTS_32BIT_KERNEL
370 select SYS_SUPPORTS_64BIT_KERNEL
371 select SYS_SUPPORTS_LITTLE_ENDIAN
372 select SYS_SUPPORTS_128HZ
373 select SYS_SUPPORTS_256HZ
374 select SYS_SUPPORTS_1024HZ
375 select MIPS_L1_CACHE_SHIFT_4
376 help
377 This enables support for DEC's MIPS based workstations. For details
378 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
379 DECstation porting pages on <http://decstation.unix-ag.org/>.
380
381 If you have one of the following DECstation Models you definitely
382 want to choose R4xx0 for the CPU Type:
383
384 DECstation 5000/50
385 DECstation 5000/150
386 DECstation 5000/260
387 DECsystem 5900/260
388
389 otherwise choose R3000.
390
391config MACH_JAZZ
392 bool "Jazz family of machines"
393 select ARC_MEMORY
394 select ARC_PROMLIB
395 select ARCH_MIGHT_HAVE_PC_PARPORT
396 select ARCH_MIGHT_HAVE_PC_SERIO
397 select FW_ARC
398 select FW_ARC32
399 select ARCH_MAY_HAVE_PC_FDC
400 select CEVT_R4K
401 select CSRC_R4K
402 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
403 select GENERIC_ISA_DMA
404 select HAVE_PCSPKR_PLATFORM
405 select IRQ_MIPS_CPU
406 select I8253
407 select I8259
408 select ISA
409 select SYS_HAS_CPU_R4X00
410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_64BIT_KERNEL
412 select SYS_SUPPORTS_100HZ
413 select SYS_SUPPORTS_LITTLE_ENDIAN
414 help
415 This a family of machines based on the MIPS R4030 chipset which was
416 used by several vendors to build RISC/os and Windows NT workstations.
417 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
418 Olivetti M700-10 workstations.
419
420config MACH_INGENIC_SOC
421 bool "Ingenic SoC based machines"
422 select MIPS_GENERIC
423 select MACH_INGENIC
424 select MACH_GENERIC_CORE
425 select SYS_SUPPORTS_ZBOOT_UART16550
426 select CPU_SUPPORTS_CPUFREQ
427 select MIPS_EXTERNAL_TIMER
428
429config LANTIQ
430 bool "Lantiq based platforms"
431 select DMA_NONCOHERENT
432 select IRQ_MIPS_CPU
433 select CEVT_R4K
434 select CSRC_R4K
435 select NO_EXCEPT_FILL
436 select SYS_HAS_CPU_MIPS32_R1
437 select SYS_HAS_CPU_MIPS32_R2
438 select SYS_SUPPORTS_BIG_ENDIAN
439 select SYS_SUPPORTS_32BIT_KERNEL
440 select SYS_SUPPORTS_MIPS16
441 select SYS_SUPPORTS_MULTITHREADING
442 select SYS_SUPPORTS_VPE_LOADER
443 select SYS_HAS_EARLY_PRINTK
444 select GPIOLIB
445 select SWAP_IO_SPACE
446 select BOOT_RAW
447 select HAVE_LEGACY_CLK
448 select USE_OF
449 select PINCTRL
450 select PINCTRL_LANTIQ
451 select ARCH_HAS_RESET_CONTROLLER
452 select RESET_CONTROLLER
453
454config MACH_LOONGSON32
455 bool "Loongson 32-bit family of machines"
456 select SYS_SUPPORTS_ZBOOT
457 help
458 This enables support for the Loongson-1 family of machines.
459
460 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
461 the Institute of Computing Technology (ICT), Chinese Academy of
462 Sciences (CAS).
463
464config MACH_LOONGSON2EF
465 bool "Loongson-2E/F family of machines"
466 select SYS_SUPPORTS_ZBOOT
467 help
468 This enables the support of early Loongson-2E/F family of machines.
469
470config MACH_LOONGSON64
471 bool "Loongson 64-bit family of machines"
472 select ARCH_DMA_DEFAULT_COHERENT
473 select ARCH_SPARSEMEM_ENABLE
474 select ARCH_MIGHT_HAVE_PC_PARPORT
475 select ARCH_MIGHT_HAVE_PC_SERIO
476 select GENERIC_ISA_DMA_SUPPORT_BROKEN
477 select BOOT_ELF32
478 select BOARD_SCACHE
479 select CSRC_R4K
480 select CEVT_R4K
481 select SYNC_R4K
482 select FORCE_PCI
483 select ISA
484 select I8259
485 select IRQ_MIPS_CPU
486 select NO_EXCEPT_FILL
487 select NR_CPUS_DEFAULT_64
488 select USE_GENERIC_EARLY_PRINTK_8250
489 select PCI_DRIVERS_GENERIC
490 select SYS_HAS_CPU_LOONGSON64
491 select SYS_HAS_EARLY_PRINTK
492 select SYS_SUPPORTS_SMP
493 select SYS_SUPPORTS_HOTPLUG_CPU
494 select SYS_SUPPORTS_NUMA
495 select SYS_SUPPORTS_64BIT_KERNEL
496 select SYS_SUPPORTS_HIGHMEM
497 select SYS_SUPPORTS_LITTLE_ENDIAN
498 select SYS_SUPPORTS_ZBOOT
499 select SYS_SUPPORTS_RELOCATABLE
500 select ZONE_DMA32
501 select COMMON_CLK
502 select USE_OF
503 select BUILTIN_DTB
504 select PCI_HOST_GENERIC
505 help
506 This enables the support of Loongson-2/3 family of machines.
507
508 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
509 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
510 and Loongson-2F which will be removed), developed by the Institute
511 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
512
513config MIPS_MALTA
514 bool "MIPS Malta board"
515 select ARCH_MAY_HAVE_PC_FDC
516 select ARCH_MIGHT_HAVE_PC_PARPORT
517 select ARCH_MIGHT_HAVE_PC_SERIO
518 select BOOT_ELF32
519 select BOOT_RAW
520 select BUILTIN_DTB
521 select CEVT_R4K
522 select CLKSRC_MIPS_GIC
523 select COMMON_CLK
524 select CSRC_R4K
525 select DMA_NONCOHERENT
526 select GENERIC_ISA_DMA
527 select HAVE_PCSPKR_PLATFORM
528 select HAVE_PCI
529 select I8253
530 select I8259
531 select IRQ_MIPS_CPU
532 select MIPS_BONITO64
533 select MIPS_CPU_SCACHE
534 select MIPS_GIC
535 select MIPS_L1_CACHE_SHIFT_6
536 select MIPS_MSC
537 select PCI_GT64XXX_PCI0
538 select SMP_UP if SMP
539 select SWAP_IO_SPACE
540 select SYS_HAS_CPU_MIPS32_R1
541 select SYS_HAS_CPU_MIPS32_R2
542 select SYS_HAS_CPU_MIPS32_R3_5
543 select SYS_HAS_CPU_MIPS32_R5
544 select SYS_HAS_CPU_MIPS32_R6
545 select SYS_HAS_CPU_MIPS64_R1
546 select SYS_HAS_CPU_MIPS64_R2
547 select SYS_HAS_CPU_MIPS64_R6
548 select SYS_HAS_CPU_NEVADA
549 select SYS_HAS_CPU_RM7000
550 select SYS_SUPPORTS_32BIT_KERNEL
551 select SYS_SUPPORTS_64BIT_KERNEL
552 select SYS_SUPPORTS_BIG_ENDIAN
553 select SYS_SUPPORTS_HIGHMEM
554 select SYS_SUPPORTS_LITTLE_ENDIAN
555 select SYS_SUPPORTS_MICROMIPS
556 select SYS_SUPPORTS_MIPS16
557 select SYS_SUPPORTS_MIPS_CPS
558 select SYS_SUPPORTS_MULTITHREADING
559 select SYS_SUPPORTS_RELOCATABLE
560 select SYS_SUPPORTS_SMARTMIPS
561 select SYS_SUPPORTS_VPE_LOADER
562 select SYS_SUPPORTS_ZBOOT
563 select USE_OF
564 select WAR_ICACHE_REFILLS
565 select ZONE_DMA32 if 64BIT
566 help
567 This enables support for the MIPS Technologies Malta evaluation
568 board.
569
570config MACH_PIC32
571 bool "Microchip PIC32 Family"
572 help
573 This enables support for the Microchip PIC32 family of platforms.
574
575 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
576 microcontrollers.
577
578config EYEQ
579 bool "Mobileye EyeQ SoC"
580 select MACH_GENERIC_CORE
581 select ARM_AMBA
582 select PHYSICAL_START_BOOL
583 select ARCH_SPARSEMEM_DEFAULT if 64BIT
584 select BOOT_RAW
585 select BUILTIN_DTB
586 select CEVT_R4K
587 select CLKSRC_MIPS_GIC
588 select COMMON_CLK
589 select CPU_MIPSR2_IRQ_EI
590 select CPU_MIPSR2_IRQ_VI
591 select CSRC_R4K
592 select DMA_NONCOHERENT
593 select HAVE_PCI
594 select IRQ_MIPS_CPU
595 select MIPS_AUTO_PFN_OFFSET
596 select MIPS_CPU_SCACHE
597 select MIPS_GIC
598 select MIPS_L1_CACHE_SHIFT_7
599 select PCI_DRIVERS_GENERIC
600 select SMP_UP if SMP
601 select SWAP_IO_SPACE
602 select SYS_HAS_CPU_MIPS64_R6
603 select SYS_SUPPORTS_64BIT_KERNEL
604 select SYS_SUPPORTS_HIGHMEM
605 select SYS_SUPPORTS_LITTLE_ENDIAN
606 select SYS_SUPPORTS_MIPS_CPS
607 select SYS_SUPPORTS_RELOCATABLE
608 select SYS_SUPPORTS_ZBOOT
609 select UHI_BOOT
610 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
611 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
612 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
613 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
614 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
615 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
616 select USE_OF
617 help
618 Select this to build a kernel supporting EyeQ SoC from Mobileye.
619
620 bool
621
622config MACH_NINTENDO64
623 bool "Nintendo 64 console"
624 select CEVT_R4K
625 select CSRC_R4K
626 select SYS_HAS_CPU_R4300
627 select SYS_SUPPORTS_BIG_ENDIAN
628 select SYS_SUPPORTS_ZBOOT
629 select SYS_SUPPORTS_32BIT_KERNEL
630 select SYS_SUPPORTS_64BIT_KERNEL
631 select DMA_NONCOHERENT
632 select IRQ_MIPS_CPU
633
634config RALINK
635 bool "Ralink based machines"
636 select CEVT_R4K
637 select COMMON_CLK
638 select CSRC_R4K
639 select BOOT_RAW
640 select DMA_NONCOHERENT
641 select IRQ_MIPS_CPU
642 select USE_OF
643 select SYS_HAS_CPU_MIPS32_R2
644 select SYS_SUPPORTS_32BIT_KERNEL
645 select SYS_SUPPORTS_LITTLE_ENDIAN
646 select SYS_SUPPORTS_MIPS16
647 select SYS_SUPPORTS_ZBOOT
648 select SYS_HAS_EARLY_PRINTK
649 select ARCH_HAS_RESET_CONTROLLER
650 select RESET_CONTROLLER
651
652config MACH_REALTEK_RTL
653 bool "Realtek RTL838x/RTL839x based machines"
654 select MIPS_GENERIC
655 select MACH_GENERIC_CORE
656 select DMA_NONCOHERENT
657 select IRQ_MIPS_CPU
658 select CSRC_R4K
659 select CEVT_R4K
660 select SYS_HAS_CPU_MIPS32_R1
661 select SYS_HAS_CPU_MIPS32_R2
662 select SYS_SUPPORTS_BIG_ENDIAN
663 select SYS_SUPPORTS_32BIT_KERNEL
664 select SYS_SUPPORTS_MIPS16
665 select SYS_SUPPORTS_MULTITHREADING
666 select SYS_SUPPORTS_VPE_LOADER
667 select BOOT_RAW
668 select PINCTRL
669 select USE_OF
670 select REALTEK_OTTO_TIMER
671
672config SGI_IP22
673 bool "SGI IP22 (Indy/Indigo2)"
674 select ARC_MEMORY
675 select ARC_PROMLIB
676 select FW_ARC
677 select FW_ARC32
678 select ARCH_MIGHT_HAVE_PC_SERIO
679 select BOOT_ELF32
680 select CEVT_R4K
681 select CSRC_R4K
682 select DEFAULT_SGI_PARTITION
683 select DMA_NONCOHERENT
684 select HAVE_EISA
685 select I8253
686 select I8259
687 select IP22_CPU_SCACHE
688 select IRQ_MIPS_CPU
689 select GENERIC_ISA_DMA_SUPPORT_BROKEN
690 select SGI_HAS_I8042
691 select SGI_HAS_INDYDOG
692 select SGI_HAS_HAL2
693 select SGI_HAS_SEEQ
694 select SGI_HAS_WD93
695 select SGI_HAS_ZILOG
696 select SWAP_IO_SPACE
697 select SYS_HAS_CPU_R4X00
698 select SYS_HAS_CPU_R5000
699 select SYS_HAS_EARLY_PRINTK
700 select SYS_SUPPORTS_32BIT_KERNEL
701 select SYS_SUPPORTS_64BIT_KERNEL
702 select SYS_SUPPORTS_BIG_ENDIAN
703 select WAR_R4600_V1_INDEX_ICACHEOP
704 select WAR_R4600_V1_HIT_CACHEOP
705 select WAR_R4600_V2_HIT_CACHEOP
706 select MIPS_L1_CACHE_SHIFT_7
707 help
708 This are the SGI Indy, Challenge S and Indigo2, as well as certain
709 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
710 that runs on these, say Y here.
711
712config SGI_IP27
713 bool "SGI IP27 (Origin200/2000)"
714 select ARCH_HAS_PHYS_TO_DMA
715 select ARCH_SPARSEMEM_ENABLE
716 select FW_ARC
717 select FW_ARC64
718 select ARC_CMDLINE_ONLY
719 select BOOT_ELF64
720 select DEFAULT_SGI_PARTITION
721 select FORCE_PCI
722 select SYS_HAS_EARLY_PRINTK
723 select HAVE_PCI
724 select IRQ_MIPS_CPU
725 select IRQ_DOMAIN_HIERARCHY
726 select NR_CPUS_DEFAULT_64
727 select PCI_DRIVERS_GENERIC
728 select PCI_XTALK_BRIDGE
729 select SYS_HAS_CPU_R10000
730 select SYS_SUPPORTS_64BIT_KERNEL
731 select SYS_SUPPORTS_BIG_ENDIAN
732 select SYS_SUPPORTS_NUMA
733 select SYS_SUPPORTS_SMP
734 select WAR_R10000_LLSC
735 select MIPS_L1_CACHE_SHIFT_7
736 select NUMA
737 help
738 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
739 workstations. To compile a Linux kernel that runs on these, say Y
740 here.
741
742config SGI_IP28
743 bool "SGI IP28 (Indigo2 R10k)"
744 select ARC_MEMORY
745 select ARC_PROMLIB
746 select FW_ARC
747 select FW_ARC64
748 select ARCH_MIGHT_HAVE_PC_SERIO
749 select BOOT_ELF64
750 select CEVT_R4K
751 select CSRC_R4K
752 select DEFAULT_SGI_PARTITION
753 select DMA_NONCOHERENT
754 select GENERIC_ISA_DMA_SUPPORT_BROKEN
755 select IRQ_MIPS_CPU
756 select HAVE_EISA
757 select I8253
758 select I8259
759 select SGI_HAS_I8042
760 select SGI_HAS_INDYDOG
761 select SGI_HAS_HAL2
762 select SGI_HAS_SEEQ
763 select SGI_HAS_WD93
764 select SGI_HAS_ZILOG
765 select SWAP_IO_SPACE
766 select SYS_HAS_CPU_R10000
767 select SYS_HAS_EARLY_PRINTK
768 select SYS_SUPPORTS_64BIT_KERNEL
769 select SYS_SUPPORTS_BIG_ENDIAN
770 select WAR_R10000_LLSC
771 select MIPS_L1_CACHE_SHIFT_7
772 help
773 This is the SGI Indigo2 with R10000 processor. To compile a Linux
774 kernel that runs on these, say Y here.
775
776config SGI_IP30
777 bool "SGI IP30 (Octane/Octane2)"
778 select ARCH_HAS_PHYS_TO_DMA
779 select FW_ARC
780 select FW_ARC64
781 select BOOT_ELF64
782 select CEVT_R4K
783 select CSRC_R4K
784 select FORCE_PCI
785 select SYNC_R4K if SMP
786 select ZONE_DMA32
787 select HAVE_PCI
788 select IRQ_MIPS_CPU
789 select IRQ_DOMAIN_HIERARCHY
790 select PCI_DRIVERS_GENERIC
791 select PCI_XTALK_BRIDGE
792 select SYS_HAS_EARLY_PRINTK
793 select SYS_HAS_CPU_R10000
794 select SYS_SUPPORTS_64BIT_KERNEL
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_SMP
797 select WAR_R10000_LLSC
798 select MIPS_L1_CACHE_SHIFT_7
799 select ARC_MEMORY
800 help
801 These are the SGI Octane and Octane2 graphics workstations. To
802 compile a Linux kernel that runs on these, say Y here.
803
804config SGI_IP32
805 bool "SGI IP32 (O2)"
806 select ARC_MEMORY
807 select ARC_PROMLIB
808 select ARCH_HAS_PHYS_TO_DMA
809 select FW_ARC
810 select FW_ARC32
811 select BOOT_ELF32
812 select CEVT_R4K
813 select CSRC_R4K
814 select DMA_NONCOHERENT
815 select HAVE_PCI
816 select IRQ_MIPS_CPU
817 select R5000_CPU_SCACHE
818 select RM7000_CPU_SCACHE
819 select SYS_HAS_CPU_R5000
820 select SYS_HAS_CPU_R10000 if BROKEN
821 select SYS_HAS_CPU_RM7000
822 select SYS_HAS_CPU_NEVADA
823 select SYS_SUPPORTS_64BIT_KERNEL
824 select SYS_SUPPORTS_BIG_ENDIAN
825 select WAR_ICACHE_REFILLS
826 help
827 If you want this kernel to run on SGI O2 workstation, say Y here.
828
829config SIBYTE_CRHONE
830 bool "Sibyte BCM91125C-CRhone"
831 select BOOT_ELF32
832 select SIBYTE_BCM1125
833 select SWAP_IO_SPACE
834 select SYS_HAS_CPU_SB1
835 select SYS_SUPPORTS_BIG_ENDIAN
836 select SYS_SUPPORTS_HIGHMEM
837 select SYS_SUPPORTS_LITTLE_ENDIAN
838
839config SIBYTE_RHONE
840 bool "Sibyte BCM91125E-Rhone"
841 select BOOT_ELF32
842 select SIBYTE_SB1250
843 select SWAP_IO_SPACE
844 select SYS_HAS_CPU_SB1
845 select SYS_SUPPORTS_BIG_ENDIAN
846 select SYS_SUPPORTS_LITTLE_ENDIAN
847
848config SIBYTE_SWARM
849 bool "Sibyte BCM91250A-SWARM"
850 select BOOT_ELF32
851 select HAVE_PATA_PLATFORM
852 select SIBYTE_SB1250
853 select SWAP_IO_SPACE
854 select SYS_HAS_CPU_SB1
855 select SYS_SUPPORTS_BIG_ENDIAN
856 select SYS_SUPPORTS_HIGHMEM
857 select SYS_SUPPORTS_LITTLE_ENDIAN
858 select ZONE_DMA32 if 64BIT
859 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
860
861config SIBYTE_LITTLESUR
862 bool "Sibyte BCM91250C2-LittleSur"
863 select BOOT_ELF32
864 select HAVE_PATA_PLATFORM
865 select SIBYTE_SB1250
866 select SWAP_IO_SPACE
867 select SYS_HAS_CPU_SB1
868 select SYS_SUPPORTS_BIG_ENDIAN
869 select SYS_SUPPORTS_HIGHMEM
870 select SYS_SUPPORTS_LITTLE_ENDIAN
871 select ZONE_DMA32 if 64BIT
872
873config SIBYTE_SENTOSA
874 bool "Sibyte BCM91250E-Sentosa"
875 select BOOT_ELF32
876 select SIBYTE_SB1250
877 select SWAP_IO_SPACE
878 select SYS_HAS_CPU_SB1
879 select SYS_SUPPORTS_BIG_ENDIAN
880 select SYS_SUPPORTS_LITTLE_ENDIAN
881 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
882
883config SIBYTE_BIGSUR
884 bool "Sibyte BCM91480B-BigSur"
885 select BOOT_ELF32
886 select NR_CPUS_DEFAULT_4
887 select SIBYTE_BCM1x80
888 select SWAP_IO_SPACE
889 select SYS_HAS_CPU_SB1
890 select SYS_SUPPORTS_BIG_ENDIAN
891 select SYS_SUPPORTS_HIGHMEM
892 select SYS_SUPPORTS_LITTLE_ENDIAN
893 select ZONE_DMA32 if 64BIT
894 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
895
896config SNI_RM
897 bool "SNI RM200/300/400"
898 select ARC_MEMORY
899 select ARC_PROMLIB
900 select FW_ARC if CPU_LITTLE_ENDIAN
901 select FW_ARC32 if CPU_LITTLE_ENDIAN
902 select FW_SNIPROM if CPU_BIG_ENDIAN
903 select ARCH_MAY_HAVE_PC_FDC
904 select ARCH_MIGHT_HAVE_PC_PARPORT
905 select ARCH_MIGHT_HAVE_PC_SERIO
906 select BOOT_ELF32
907 select CEVT_R4K
908 select CSRC_R4K
909 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
910 select DMA_NONCOHERENT
911 select GENERIC_ISA_DMA
912 select HAVE_EISA
913 select HAVE_PCSPKR_PLATFORM
914 select HAVE_PCI
915 select IRQ_MIPS_CPU
916 select I8253
917 select I8259
918 select ISA
919 select MIPS_L1_CACHE_SHIFT_6
920 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
921 select SYS_HAS_CPU_R4X00
922 select SYS_HAS_CPU_R5000
923 select SYS_HAS_CPU_R10000
924 select R5000_CPU_SCACHE
925 select SYS_HAS_EARLY_PRINTK
926 select SYS_SUPPORTS_32BIT_KERNEL
927 select SYS_SUPPORTS_64BIT_KERNEL
928 select SYS_SUPPORTS_BIG_ENDIAN
929 select SYS_SUPPORTS_HIGHMEM
930 select SYS_SUPPORTS_LITTLE_ENDIAN
931 select WAR_R4600_V2_HIT_CACHEOP
932 help
933 The SNI RM200/300/400 are MIPS-based machines manufactured by
934 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
935 Technology and now in turn merged with Fujitsu. Say Y here to
936 support this machine type.
937
938config MACH_TX49XX
939 bool "Toshiba TX49 series based machines"
940 select WAR_TX49XX_ICACHE_INDEX_INV
941
942config MIKROTIK_RB532
943 bool "Mikrotik RB532 boards"
944 select CEVT_R4K
945 select CSRC_R4K
946 select DMA_NONCOHERENT
947 select HAVE_PCI
948 select IRQ_MIPS_CPU
949 select SYS_HAS_CPU_MIPS32_R1
950 select SYS_SUPPORTS_32BIT_KERNEL
951 select SYS_SUPPORTS_LITTLE_ENDIAN
952 select SWAP_IO_SPACE
953 select BOOT_RAW
954 select GPIOLIB
955 select MIPS_L1_CACHE_SHIFT_4
956 help
957 Support the Mikrotik(tm) RouterBoard 532 series,
958 based on the IDT RC32434 SoC.
959
960config CAVIUM_OCTEON_SOC
961 bool "Cavium Networks Octeon SoC based boards"
962 select CEVT_R4K
963 select ARCH_HAS_PHYS_TO_DMA
964 select HAVE_RAPIDIO
965 select PHYS_ADDR_T_64BIT
966 select SYS_SUPPORTS_64BIT_KERNEL
967 select SYS_SUPPORTS_BIG_ENDIAN
968 select EDAC_SUPPORT
969 select EDAC_ATOMIC_SCRUB
970 select SYS_SUPPORTS_LITTLE_ENDIAN
971 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
972 select SYS_HAS_EARLY_PRINTK
973 select SYS_HAS_CPU_CAVIUM_OCTEON
974 select HAVE_PCI
975 select HAVE_PLAT_DELAY
976 select HAVE_PLAT_FW_INIT_CMDLINE
977 select HAVE_PLAT_MEMCPY
978 select ZONE_DMA32
979 select GPIOLIB
980 select USE_OF
981 select ARCH_SPARSEMEM_ENABLE
982 select SYS_SUPPORTS_SMP
983 select NR_CPUS_DEFAULT_64
984 select MIPS_NR_CPU_NR_MAP_1024
985 select BUILTIN_DTB
986 select MTD
987 select MTD_COMPLEX_MAPPINGS
988 select SWIOTLB
989 select SYS_SUPPORTS_RELOCATABLE
990 help
991 This option supports all of the Octeon reference boards from Cavium
992 Networks. It builds a kernel that dynamically determines the Octeon
993 CPU type and supports all known board reference implementations.
994 Some of the supported boards are:
995 EBT3000
996 EBH3000
997 EBH3100
998 Thunder
999 Kodama
1000 Hikari
1001 Say Y here for most Octeon reference boards.
1002
1003endchoice
1004
1005config FIT_IMAGE_FDT_EPM5
1006 bool "Include FDT for Mobileye EyeQ5 development platforms"
1007 depends on MACH_EYEQ5
1008 default n
1009 help
1010 Enable this to include the FDT for the EyeQ5 development platforms
1011 from Mobileye in the FIT kernel image.
1012 This requires u-boot on the platform.
1013
1014source "arch/mips/alchemy/Kconfig"
1015source "arch/mips/ath25/Kconfig"
1016source "arch/mips/ath79/Kconfig"
1017source "arch/mips/bcm47xx/Kconfig"
1018source "arch/mips/bcm63xx/Kconfig"
1019source "arch/mips/bmips/Kconfig"
1020source "arch/mips/generic/Kconfig"
1021source "arch/mips/ingenic/Kconfig"
1022source "arch/mips/jazz/Kconfig"
1023source "arch/mips/lantiq/Kconfig"
1024source "arch/mips/mobileye/Kconfig"
1025source "arch/mips/pic32/Kconfig"
1026source "arch/mips/ralink/Kconfig"
1027source "arch/mips/sgi-ip27/Kconfig"
1028source "arch/mips/sibyte/Kconfig"
1029source "arch/mips/txx9/Kconfig"
1030source "arch/mips/cavium-octeon/Kconfig"
1031source "arch/mips/loongson2ef/Kconfig"
1032source "arch/mips/loongson32/Kconfig"
1033source "arch/mips/loongson64/Kconfig"
1034
1035endmenu
1036
1037config GENERIC_HWEIGHT
1038 bool
1039 default y
1040
1041config GENERIC_CALIBRATE_DELAY
1042 bool
1043 default y
1044
1045config SCHED_OMIT_FRAME_POINTER
1046 bool
1047 default y
1048
1049#
1050# Select some configuration options automatically based on user selections.
1051#
1052config FW_ARC
1053 bool
1054
1055config ARCH_MAY_HAVE_PC_FDC
1056 bool
1057
1058config BOOT_RAW
1059 bool
1060
1061config CEVT_BCM1480
1062 bool
1063
1064config CEVT_DS1287
1065 bool
1066
1067config CEVT_GT641XX
1068 bool
1069
1070config CEVT_R4K
1071 bool
1072
1073config CEVT_SB1250
1074 bool
1075
1076config CEVT_TXX9
1077 bool
1078
1079config CSRC_BCM1480
1080 bool
1081
1082config CSRC_IOASIC
1083 bool
1084
1085config CSRC_R4K
1086 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1087 bool
1088
1089config CSRC_SB1250
1090 bool
1091
1092config MIPS_CLOCK_VSYSCALL
1093 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1094
1095config GPIO_TXX9
1096 select GPIOLIB
1097 bool
1098
1099config FW_CFE
1100 bool
1101
1102config ARCH_SUPPORTS_UPROBES
1103 def_bool y
1104
1105config DMA_NONCOHERENT
1106 bool
1107 #
1108 # MIPS allows mixing "slightly different" Cacheability and Coherency
1109 # Attribute bits. It is believed that the uncached access through
1110 # KSEG1 and the implementation specific "uncached accelerated" used
1111 # by pgprot_writcombine can be mixed, and the latter sometimes provides
1112 # significant advantages.
1113 #
1114 select ARCH_HAS_SETUP_DMA_OPS
1115 select ARCH_HAS_DMA_WRITE_COMBINE
1116 select ARCH_HAS_DMA_PREP_COHERENT
1117 select ARCH_HAS_SYNC_DMA_FOR_CPU
1118 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1119 select ARCH_HAS_DMA_SET_UNCACHED
1120 select DMA_NONCOHERENT_MMAP
1121 select NEED_DMA_MAP_STATE
1122
1123config SYS_HAS_EARLY_PRINTK
1124 bool
1125
1126config SYS_SUPPORTS_HOTPLUG_CPU
1127 bool
1128
1129config MIPS_BONITO64
1130 bool
1131
1132config MIPS_MSC
1133 bool
1134
1135config SYNC_R4K
1136 bool
1137
1138config NO_IOPORT_MAP
1139 def_bool n
1140
1141config GENERIC_CSUM
1142 def_bool CPU_NO_LOAD_STORE_LR
1143
1144config GENERIC_ISA_DMA
1145 bool
1146 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1147 select ISA_DMA_API
1148
1149config GENERIC_ISA_DMA_SUPPORT_BROKEN
1150 bool
1151 select GENERIC_ISA_DMA
1152
1153config HAVE_PLAT_DELAY
1154 bool
1155
1156config HAVE_PLAT_FW_INIT_CMDLINE
1157 bool
1158
1159config HAVE_PLAT_MEMCPY
1160 bool
1161
1162config ISA_DMA_API
1163 bool
1164
1165config SYS_SUPPORTS_RELOCATABLE
1166 bool
1167 help
1168 Selected if the platform supports relocating the kernel.
1169 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1170 to allow access to command line and entropy sources.
1171
1172#
1173# Endianness selection. Sufficiently obscure so many users don't know what to
1174# answer,so we try hard to limit the available choices. Also the use of a
1175# choice statement should be more obvious to the user.
1176#
1177choice
1178 prompt "Endianness selection"
1179 help
1180 Some MIPS machines can be configured for either little or big endian
1181 byte order. These modes require different kernels and a different
1182 Linux distribution. In general there is one preferred byteorder for a
1183 particular system but some systems are just as commonly used in the
1184 one or the other endianness.
1185
1186config CPU_BIG_ENDIAN
1187 bool "Big endian"
1188 depends on SYS_SUPPORTS_BIG_ENDIAN
1189
1190config CPU_LITTLE_ENDIAN
1191 bool "Little endian"
1192 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1193
1194endchoice
1195
1196config EXPORT_UASM
1197 bool
1198
1199config SYS_SUPPORTS_APM_EMULATION
1200 bool
1201
1202config SYS_SUPPORTS_BIG_ENDIAN
1203 bool
1204
1205config SYS_SUPPORTS_LITTLE_ENDIAN
1206 bool
1207
1208config MIPS_HUGE_TLB_SUPPORT
1209 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1210
1211config IRQ_TXX9
1212 bool
1213
1214config IRQ_GT641XX
1215 bool
1216
1217config PCI_GT64XXX_PCI0
1218 bool
1219
1220config PCI_XTALK_BRIDGE
1221 bool
1222
1223config NO_EXCEPT_FILL
1224 bool
1225
1226config MIPS_SPRAM
1227 bool
1228
1229config SWAP_IO_SPACE
1230 bool
1231
1232config SGI_HAS_INDYDOG
1233 bool
1234
1235config SGI_HAS_HAL2
1236 bool
1237
1238config SGI_HAS_SEEQ
1239 bool
1240
1241config SGI_HAS_WD93
1242 bool
1243
1244config SGI_HAS_ZILOG
1245 bool
1246
1247config SGI_HAS_I8042
1248 bool
1249
1250config DEFAULT_SGI_PARTITION
1251 bool
1252
1253config FW_ARC32
1254 bool
1255
1256config FW_SNIPROM
1257 bool
1258
1259config BOOT_ELF32
1260 bool
1261
1262config MIPS_L1_CACHE_SHIFT_4
1263 bool
1264
1265config MIPS_L1_CACHE_SHIFT_5
1266 bool
1267
1268config MIPS_L1_CACHE_SHIFT_6
1269 bool
1270
1271config MIPS_L1_CACHE_SHIFT_7
1272 bool
1273
1274config MIPS_L1_CACHE_SHIFT
1275 int
1276 default "7" if MIPS_L1_CACHE_SHIFT_7
1277 default "6" if MIPS_L1_CACHE_SHIFT_6
1278 default "5" if MIPS_L1_CACHE_SHIFT_5
1279 default "4" if MIPS_L1_CACHE_SHIFT_4
1280 default "5"
1281
1282config ARC_CMDLINE_ONLY
1283 bool
1284
1285config ARC_CONSOLE
1286 bool "ARC console support"
1287 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1288
1289config ARC_MEMORY
1290 bool
1291
1292config ARC_PROMLIB
1293 bool
1294
1295config FW_ARC64
1296 bool
1297
1298config BOOT_ELF64
1299 bool
1300
1301menu "CPU selection"
1302
1303choice
1304 prompt "CPU type"
1305 default CPU_R4X00
1306
1307config CPU_LOONGSON64
1308 bool "Loongson 64-bit CPU"
1309 depends on SYS_HAS_CPU_LOONGSON64
1310 select ARCH_HAS_PHYS_TO_DMA
1311 select CPU_MIPSR2
1312 select CPU_HAS_PREFETCH
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HIGHMEM
1315 select CPU_SUPPORTS_HUGEPAGES
1316 select CPU_SUPPORTS_MSA
1317 select CPU_SUPPORTS_VZ
1318 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1319 select CPU_MIPSR2_IRQ_VI
1320 select DMA_NONCOHERENT
1321 select WEAK_ORDERING
1322 select WEAK_REORDERING_BEYOND_LLSC
1323 select MIPS_ASID_BITS_VARIABLE
1324 select MIPS_PGD_C0_CONTEXT
1325 select MIPS_L1_CACHE_SHIFT_6
1326 select MIPS_FP_SUPPORT
1327 select GPIOLIB
1328 select SWIOTLB
1329 help
1330 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1331 cores implements the MIPS64R2 instruction set with many extensions,
1332 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1333 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1334 Loongson-2E/2F is not covered here and will be removed in future.
1335
1336config CPU_LOONGSON2E
1337 bool "Loongson 2E"
1338 depends on SYS_HAS_CPU_LOONGSON2E
1339 select CPU_LOONGSON2EF
1340 help
1341 The Loongson 2E processor implements the MIPS III instruction set
1342 with many extensions.
1343
1344 It has an internal FPGA northbridge, which is compatible to
1345 bonito64.
1346
1347config CPU_LOONGSON2F
1348 bool "Loongson 2F"
1349 depends on SYS_HAS_CPU_LOONGSON2F
1350 select CPU_LOONGSON2EF
1351 help
1352 The Loongson 2F processor implements the MIPS III instruction set
1353 with many extensions.
1354
1355 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1356 have a similar programming interface with FPGA northbridge used in
1357 Loongson2E.
1358
1359config CPU_LOONGSON1B
1360 bool "Loongson 1B"
1361 depends on SYS_HAS_CPU_LOONGSON1B
1362 select CPU_LOONGSON32
1363 select LEDS_GPIO_REGISTER
1364 help
1365 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1366 Release 1 instruction set and part of the MIPS32 Release 2
1367 instruction set.
1368
1369config CPU_LOONGSON1C
1370 bool "Loongson 1C"
1371 depends on SYS_HAS_CPU_LOONGSON1C
1372 select CPU_LOONGSON32
1373 select LEDS_GPIO_REGISTER
1374 help
1375 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1376 Release 1 instruction set and part of the MIPS32 Release 2
1377 instruction set.
1378
1379config CPU_MIPS32_R1
1380 bool "MIPS32 Release 1"
1381 depends on SYS_HAS_CPU_MIPS32_R1
1382 select CPU_HAS_PREFETCH
1383 select CPU_SUPPORTS_32BIT_KERNEL
1384 select CPU_SUPPORTS_HIGHMEM
1385 help
1386 Choose this option to build a kernel for release 1 or later of the
1387 MIPS32 architecture. Most modern embedded systems with a 32-bit
1388 MIPS processor are based on a MIPS32 processor. If you know the
1389 specific type of processor in your system, choose those that one
1390 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1391 Release 2 of the MIPS32 architecture is available since several
1392 years so chances are you even have a MIPS32 Release 2 processor
1393 in which case you should choose CPU_MIPS32_R2 instead for better
1394 performance.
1395
1396config CPU_MIPS32_R2
1397 bool "MIPS32 Release 2"
1398 depends on SYS_HAS_CPU_MIPS32_R2
1399 select CPU_HAS_PREFETCH
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_HIGHMEM
1402 select CPU_SUPPORTS_MSA
1403 help
1404 Choose this option to build a kernel for release 2 or later of the
1405 MIPS32 architecture. Most modern embedded systems with a 32-bit
1406 MIPS processor are based on a MIPS32 processor. If you know the
1407 specific type of processor in your system, choose those that one
1408 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1409
1410config CPU_MIPS32_R5
1411 bool "MIPS32 Release 5"
1412 depends on SYS_HAS_CPU_MIPS32_R5
1413 select CPU_HAS_PREFETCH
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_HIGHMEM
1416 select CPU_SUPPORTS_MSA
1417 select CPU_SUPPORTS_VZ
1418 select MIPS_O32_FP64_SUPPORT
1419 help
1420 Choose this option to build a kernel for release 5 or later of the
1421 MIPS32 architecture. New MIPS processors, starting with the Warrior
1422 family, are based on a MIPS32r5 processor. If you own an older
1423 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1424
1425config CPU_MIPS32_R6
1426 bool "MIPS32 Release 6"
1427 depends on SYS_HAS_CPU_MIPS32_R6
1428 select CPU_HAS_PREFETCH
1429 select CPU_NO_LOAD_STORE_LR
1430 select CPU_SUPPORTS_32BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_MSA
1433 select CPU_SUPPORTS_VZ
1434 select MIPS_O32_FP64_SUPPORT
1435 help
1436 Choose this option to build a kernel for release 6 or later of the
1437 MIPS32 architecture. New MIPS processors, starting with the Warrior
1438 family, are based on a MIPS32r6 processor. If you own an older
1439 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1440
1441config CPU_MIPS64_R1
1442 bool "MIPS64 Release 1"
1443 depends on SYS_HAS_CPU_MIPS64_R1
1444 select CPU_HAS_PREFETCH
1445 select CPU_SUPPORTS_32BIT_KERNEL
1446 select CPU_SUPPORTS_64BIT_KERNEL
1447 select CPU_SUPPORTS_HIGHMEM
1448 select CPU_SUPPORTS_HUGEPAGES
1449 help
1450 Choose this option to build a kernel for release 1 or later of the
1451 MIPS64 architecture. Many modern embedded systems with a 64-bit
1452 MIPS processor are based on a MIPS64 processor. If you know the
1453 specific type of processor in your system, choose those that one
1454 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1455 Release 2 of the MIPS64 architecture is available since several
1456 years so chances are you even have a MIPS64 Release 2 processor
1457 in which case you should choose CPU_MIPS64_R2 instead for better
1458 performance.
1459
1460config CPU_MIPS64_R2
1461 bool "MIPS64 Release 2"
1462 depends on SYS_HAS_CPU_MIPS64_R2
1463 select CPU_HAS_PREFETCH
1464 select CPU_SUPPORTS_32BIT_KERNEL
1465 select CPU_SUPPORTS_64BIT_KERNEL
1466 select CPU_SUPPORTS_HIGHMEM
1467 select CPU_SUPPORTS_HUGEPAGES
1468 select CPU_SUPPORTS_MSA
1469 help
1470 Choose this option to build a kernel for release 2 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
1476config CPU_MIPS64_R5
1477 bool "MIPS64 Release 5"
1478 depends on SYS_HAS_CPU_MIPS64_R5
1479 select CPU_HAS_PREFETCH
1480 select CPU_SUPPORTS_32BIT_KERNEL
1481 select CPU_SUPPORTS_64BIT_KERNEL
1482 select CPU_SUPPORTS_HIGHMEM
1483 select CPU_SUPPORTS_HUGEPAGES
1484 select CPU_SUPPORTS_MSA
1485 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1486 select CPU_SUPPORTS_VZ
1487 help
1488 Choose this option to build a kernel for release 5 or later of the
1489 MIPS64 architecture. This is a intermediate MIPS architecture
1490 release partly implementing release 6 features. Though there is no
1491 any hardware known to be based on this release.
1492
1493config CPU_MIPS64_R6
1494 bool "MIPS64 Release 6"
1495 depends on SYS_HAS_CPU_MIPS64_R6
1496 select CPU_HAS_PREFETCH
1497 select CPU_NO_LOAD_STORE_LR
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499 select CPU_SUPPORTS_64BIT_KERNEL
1500 select CPU_SUPPORTS_HIGHMEM
1501 select CPU_SUPPORTS_HUGEPAGES
1502 select CPU_SUPPORTS_MSA
1503 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1504 select CPU_SUPPORTS_VZ
1505 help
1506 Choose this option to build a kernel for release 6 or later of the
1507 MIPS64 architecture. New MIPS processors, starting with the Warrior
1508 family, are based on a MIPS64r6 processor. If you own an older
1509 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1510
1511config CPU_P5600
1512 bool "MIPS Warrior P5600"
1513 depends on SYS_HAS_CPU_P5600
1514 select CPU_HAS_PREFETCH
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_HIGHMEM
1517 select CPU_SUPPORTS_MSA
1518 select CPU_SUPPORTS_CPUFREQ
1519 select CPU_SUPPORTS_VZ
1520 select CPU_MIPSR2_IRQ_VI
1521 select CPU_MIPSR2_IRQ_EI
1522 select MIPS_O32_FP64_SUPPORT
1523 help
1524 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1525 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1526 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1527 level features like up to six P5600 calculation cores, CM2 with L2
1528 cache, IOCU/IOMMU (though might be unused depending on the system-
1529 specific IP core configuration), GIC, CPC, virtualisation module,
1530 eJTAG and PDtrace.
1531
1532config CPU_R3000
1533 bool "R3000"
1534 depends on SYS_HAS_CPU_R3000
1535 select CPU_HAS_WB
1536 select CPU_R3K_TLB
1537 select CPU_SUPPORTS_32BIT_KERNEL
1538 select CPU_SUPPORTS_HIGHMEM
1539 help
1540 Please make sure to pick the right CPU type. Linux/MIPS is not
1541 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1542 *not* work on R4000 machines and vice versa. However, since most
1543 of the supported machines have an R4000 (or similar) CPU, R4x00
1544 might be a safe bet. If the resulting kernel does not work,
1545 try to recompile with R3000.
1546
1547config CPU_R4300
1548 bool "R4300"
1549 depends on SYS_HAS_CPU_R4300
1550 select CPU_SUPPORTS_32BIT_KERNEL
1551 select CPU_SUPPORTS_64BIT_KERNEL
1552 help
1553 MIPS Technologies R4300-series processors.
1554
1555config CPU_R4X00
1556 bool "R4x00"
1557 depends on SYS_HAS_CPU_R4X00
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_64BIT_KERNEL
1560 select CPU_SUPPORTS_HUGEPAGES
1561 help
1562 MIPS Technologies R4000-series processors other than 4300, including
1563 the R4000, R4400, R4600, and 4700.
1564
1565config CPU_TX49XX
1566 bool "R49XX"
1567 depends on SYS_HAS_CPU_TX49XX
1568 select CPU_HAS_PREFETCH
1569 select CPU_SUPPORTS_32BIT_KERNEL
1570 select CPU_SUPPORTS_64BIT_KERNEL
1571 select CPU_SUPPORTS_HUGEPAGES
1572
1573config CPU_R5000
1574 bool "R5000"
1575 depends on SYS_HAS_CPU_R5000
1576 select CPU_SUPPORTS_32BIT_KERNEL
1577 select CPU_SUPPORTS_64BIT_KERNEL
1578 select CPU_SUPPORTS_HUGEPAGES
1579 help
1580 MIPS Technologies R5000-series processors other than the Nevada.
1581
1582config CPU_R5500
1583 bool "R5500"
1584 depends on SYS_HAS_CPU_R5500
1585 select CPU_SUPPORTS_32BIT_KERNEL
1586 select CPU_SUPPORTS_64BIT_KERNEL
1587 select CPU_SUPPORTS_HUGEPAGES
1588 help
1589 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1590 instruction set.
1591
1592config CPU_NEVADA
1593 bool "RM52xx"
1594 depends on SYS_HAS_CPU_NEVADA
1595 select CPU_SUPPORTS_32BIT_KERNEL
1596 select CPU_SUPPORTS_64BIT_KERNEL
1597 select CPU_SUPPORTS_HUGEPAGES
1598 help
1599 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1600
1601config CPU_R10000
1602 bool "R10000"
1603 depends on SYS_HAS_CPU_R10000
1604 select CPU_HAS_PREFETCH
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_SUPPORTS_HIGHMEM
1608 select CPU_SUPPORTS_HUGEPAGES
1609 help
1610 MIPS Technologies R10000-series processors.
1611
1612config CPU_RM7000
1613 bool "RM7000"
1614 depends on SYS_HAS_CPU_RM7000
1615 select CPU_HAS_PREFETCH
1616 select CPU_SUPPORTS_32BIT_KERNEL
1617 select CPU_SUPPORTS_64BIT_KERNEL
1618 select CPU_SUPPORTS_HIGHMEM
1619 select CPU_SUPPORTS_HUGEPAGES
1620
1621config CPU_SB1
1622 bool "SB1"
1623 depends on SYS_HAS_CPU_SB1
1624 select CPU_SUPPORTS_32BIT_KERNEL
1625 select CPU_SUPPORTS_64BIT_KERNEL
1626 select CPU_SUPPORTS_HIGHMEM
1627 select CPU_SUPPORTS_HUGEPAGES
1628 select WEAK_ORDERING
1629
1630config CPU_CAVIUM_OCTEON
1631 bool "Cavium Octeon processor"
1632 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1633 select CPU_HAS_PREFETCH
1634 select CPU_SUPPORTS_64BIT_KERNEL
1635 select HAVE_PAGE_SIZE_8KB if !MIPS_VA_BITS_48
1636 select HAVE_PAGE_SIZE_32KB if !MIPS_VA_BITS_48
1637 select WEAK_ORDERING
1638 select CPU_SUPPORTS_HIGHMEM
1639 select CPU_SUPPORTS_HUGEPAGES
1640 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1641 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1642 select MIPS_L1_CACHE_SHIFT_7
1643 select CPU_SUPPORTS_VZ
1644 help
1645 The Cavium Octeon processor is a highly integrated chip containing
1646 many ethernet hardware widgets for networking tasks. The processor
1647 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1648 Full details can be found at http://www.caviumnetworks.com.
1649
1650config CPU_BMIPS
1651 bool "Broadcom BMIPS"
1652 depends on SYS_HAS_CPU_BMIPS
1653 select CPU_MIPS32
1654 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1655 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1656 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1657 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1658 select CPU_SUPPORTS_32BIT_KERNEL
1659 select DMA_NONCOHERENT
1660 select IRQ_MIPS_CPU
1661 select SWAP_IO_SPACE
1662 select WEAK_ORDERING
1663 select CPU_SUPPORTS_HIGHMEM
1664 select CPU_HAS_PREFETCH
1665 select CPU_SUPPORTS_CPUFREQ
1666 select MIPS_EXTERNAL_TIMER
1667 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
1668 help
1669 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1670
1671endchoice
1672
1673config LOONGSON3_ENHANCEMENT
1674 bool "New Loongson-3 CPU Enhancements"
1675 default n
1676 depends on CPU_LOONGSON64
1677 help
1678 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1679 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1680 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1681 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1682 Fast TLB refill support, etc.
1683
1684 This option enable those enhancements which are not probed at run
1685 time. If you want a generic kernel to run on all Loongson 3 machines,
1686 please say 'N' here. If you want a high-performance kernel to run on
1687 new Loongson-3 machines only, please say 'Y' here.
1688
1689config CPU_LOONGSON3_WORKAROUNDS
1690 bool "Loongson-3 LLSC Workarounds"
1691 default y if SMP
1692 depends on CPU_LOONGSON64
1693 help
1694 Loongson-3 processors have the llsc issues which require workarounds.
1695 Without workarounds the system may hang unexpectedly.
1696
1697 Say Y, unless you know what you are doing.
1698
1699config CPU_LOONGSON3_CPUCFG_EMULATION
1700 bool "Emulate the CPUCFG instruction on older Loongson cores"
1701 default y
1702 depends on CPU_LOONGSON64
1703 help
1704 Loongson-3A R4 and newer have the CPUCFG instruction available for
1705 userland to query CPU capabilities, much like CPUID on x86. This
1706 option provides emulation of the instruction on older Loongson
1707 cores, back to Loongson-3A1000.
1708
1709 If unsure, please say Y.
1710
1711config CPU_MIPS32_3_5_FEATURES
1712 bool "MIPS32 Release 3.5 Features"
1713 depends on SYS_HAS_CPU_MIPS32_R3_5
1714 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1715 CPU_P5600
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
1721config 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
1732config CPU_MIPS32_R5_FEATURES
1733 bool "MIPS32 Release 5 Features"
1734 depends on SYS_HAS_CPU_MIPS32_R5
1735 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
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
1741config 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 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
1759if CPU_LOONGSON2F
1760config CPU_NOP_WORKAROUNDS
1761 bool
1762
1763config CPU_JUMP_WORKAROUNDS
1764 bool
1765
1766config 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.
1784endif # CPU_LOONGSON2F
1785
1786config 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 select HAVE_KERNEL_ZSTD
1795
1796config SYS_SUPPORTS_ZBOOT_UART16550
1797 bool
1798 select SYS_SUPPORTS_ZBOOT
1799
1800config SYS_SUPPORTS_ZBOOT_UART_PROM
1801 bool
1802 select SYS_SUPPORTS_ZBOOT
1803
1804config CPU_LOONGSON2EF
1805 bool
1806 select CPU_SUPPORTS_32BIT_KERNEL
1807 select CPU_SUPPORTS_64BIT_KERNEL
1808 select CPU_SUPPORTS_HIGHMEM
1809 select CPU_SUPPORTS_HUGEPAGES
1810
1811config CPU_LOONGSON32
1812 bool
1813 select CPU_MIPS32
1814 select CPU_MIPSR2
1815 select CPU_HAS_PREFETCH
1816 select CPU_SUPPORTS_32BIT_KERNEL
1817 select CPU_SUPPORTS_HIGHMEM
1818 select CPU_SUPPORTS_CPUFREQ
1819
1820config CPU_BMIPS32_3300
1821 select SMP_UP if SMP
1822 bool
1823
1824config CPU_BMIPS4350
1825 bool
1826 select SYS_SUPPORTS_SMP
1827 select SYS_SUPPORTS_HOTPLUG_CPU
1828
1829config CPU_BMIPS4380
1830 bool
1831 select MIPS_L1_CACHE_SHIFT_6
1832 select SYS_SUPPORTS_SMP
1833 select SYS_SUPPORTS_HOTPLUG_CPU
1834 select CPU_HAS_RIXI
1835
1836config CPU_BMIPS5000
1837 bool
1838 select MIPS_CPU_SCACHE
1839 select MIPS_L1_CACHE_SHIFT_7
1840 select SYS_SUPPORTS_SMP
1841 select SYS_SUPPORTS_HOTPLUG_CPU
1842 select CPU_HAS_RIXI
1843
1844config SYS_HAS_CPU_LOONGSON64
1845 bool
1846 select CPU_SUPPORTS_CPUFREQ
1847 select CPU_HAS_RIXI
1848
1849config SYS_HAS_CPU_LOONGSON2E
1850 bool
1851
1852config SYS_HAS_CPU_LOONGSON2F
1853 bool
1854 select CPU_SUPPORTS_CPUFREQ
1855 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1856
1857config SYS_HAS_CPU_LOONGSON1B
1858 bool
1859
1860config SYS_HAS_CPU_LOONGSON1C
1861 bool
1862
1863config SYS_HAS_CPU_MIPS32_R1
1864 bool
1865
1866config SYS_HAS_CPU_MIPS32_R2
1867 bool
1868
1869config SYS_HAS_CPU_MIPS32_R3_5
1870 bool
1871
1872config SYS_HAS_CPU_MIPS32_R5
1873 bool
1874
1875config SYS_HAS_CPU_MIPS32_R6
1876 bool
1877
1878config SYS_HAS_CPU_MIPS64_R1
1879 bool
1880
1881config SYS_HAS_CPU_MIPS64_R2
1882 bool
1883
1884config SYS_HAS_CPU_MIPS64_R5
1885 bool
1886
1887config SYS_HAS_CPU_MIPS64_R6
1888 bool
1889
1890config SYS_HAS_CPU_P5600
1891 bool
1892
1893config SYS_HAS_CPU_R3000
1894 bool
1895
1896config SYS_HAS_CPU_R4300
1897 bool
1898
1899config SYS_HAS_CPU_R4X00
1900 bool
1901
1902config SYS_HAS_CPU_TX49XX
1903 bool
1904
1905config SYS_HAS_CPU_R5000
1906 bool
1907
1908config SYS_HAS_CPU_R5500
1909 bool
1910
1911config SYS_HAS_CPU_NEVADA
1912 bool
1913
1914config SYS_HAS_CPU_R10000
1915 bool
1916
1917config SYS_HAS_CPU_RM7000
1918 bool
1919
1920config SYS_HAS_CPU_SB1
1921 bool
1922
1923config SYS_HAS_CPU_CAVIUM_OCTEON
1924 bool
1925
1926config SYS_HAS_CPU_BMIPS
1927 bool
1928
1929config SYS_HAS_CPU_BMIPS32_3300
1930 bool
1931 select SYS_HAS_CPU_BMIPS
1932
1933config SYS_HAS_CPU_BMIPS4350
1934 bool
1935 select SYS_HAS_CPU_BMIPS
1936
1937config SYS_HAS_CPU_BMIPS4380
1938 bool
1939 select SYS_HAS_CPU_BMIPS
1940
1941config SYS_HAS_CPU_BMIPS5000
1942 bool
1943 select SYS_HAS_CPU_BMIPS
1944
1945#
1946# CPU may reorder R->R, R->W, W->R, W->W
1947# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1948#
1949config WEAK_ORDERING
1950 bool
1951
1952#
1953# CPU may reorder reads and writes beyond LL/SC
1954# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1955#
1956config WEAK_REORDERING_BEYOND_LLSC
1957 bool
1958endmenu
1959
1960#
1961# These two indicate any level of the MIPS32 and MIPS64 architecture
1962#
1963config CPU_MIPS32
1964 bool
1965 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
1966 CPU_MIPS32_R6 || CPU_P5600
1967
1968config CPU_MIPS64
1969 bool
1970 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
1971 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
1972
1973#
1974# These indicate the revision of the architecture
1975#
1976config CPU_MIPSR1
1977 bool
1978 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1979
1980config CPU_MIPSR2
1981 bool
1982 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1983 select CPU_HAS_RIXI
1984 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
1985 select MIPS_SPRAM
1986
1987config CPU_MIPSR5
1988 bool
1989 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
1990 select CPU_HAS_RIXI
1991 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
1992 select MIPS_SPRAM
1993
1994config CPU_MIPSR6
1995 bool
1996 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1997 select CPU_HAS_RIXI
1998 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
1999 select HAVE_ARCH_BITREVERSE
2000 select MIPS_ASID_BITS_VARIABLE
2001 select MIPS_CRC_SUPPORT
2002 select MIPS_SPRAM
2003
2004config TARGET_ISA_REV
2005 int
2006 default 1 if CPU_MIPSR1
2007 default 2 if CPU_MIPSR2
2008 default 5 if CPU_MIPSR5
2009 default 6 if CPU_MIPSR6
2010 default 0
2011 help
2012 Reflects the ISA revision being targeted by the kernel build. This
2013 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2014
2015config EVA
2016 bool
2017
2018config XPA
2019 bool
2020
2021config SYS_SUPPORTS_32BIT_KERNEL
2022 bool
2023config SYS_SUPPORTS_64BIT_KERNEL
2024 bool
2025config CPU_SUPPORTS_32BIT_KERNEL
2026 bool
2027config CPU_SUPPORTS_64BIT_KERNEL
2028 bool
2029config CPU_SUPPORTS_CPUFREQ
2030 bool
2031config CPU_SUPPORTS_ADDRWINCFG
2032 bool
2033config CPU_SUPPORTS_HUGEPAGES
2034 bool
2035 depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
2036config CPU_SUPPORTS_VZ
2037 bool
2038config MIPS_PGD_C0_CONTEXT
2039 bool
2040 depends on 64BIT
2041 default y if (CPU_MIPSR2 || CPU_MIPSR6)
2042
2043#
2044# Set to y for ptrace access to watch registers.
2045#
2046config HARDWARE_WATCHPOINTS
2047 bool
2048 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2049
2050menu "Kernel type"
2051
2052choice
2053 prompt "Kernel code model"
2054 help
2055 You should only select this option if you have a workload that
2056 actually benefits from 64-bit processing or if your machine has
2057 large memory. You will only be presented a single option in this
2058 menu if your system does not support both 32-bit and 64-bit kernels.
2059
2060config 32BIT
2061 bool "32-bit kernel"
2062 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2063 select TRAD_SIGNALS
2064 help
2065 Select this option if you want to build a 32-bit kernel.
2066
2067config 64BIT
2068 bool "64-bit kernel"
2069 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2070 help
2071 Select this option if you want to build a 64-bit kernel.
2072
2073endchoice
2074
2075config MIPS_VA_BITS_48
2076 bool "48 bits virtual memory"
2077 depends on 64BIT
2078 help
2079 Support a maximum at least 48 bits of application virtual
2080 memory. Default is 40 bits or less, depending on the CPU.
2081 For page sizes 16k and above, this option results in a small
2082 memory overhead for page tables. For 4k page size, a fourth
2083 level of page tables is added which imposes both a memory
2084 overhead as well as slower TLB fault handling.
2085
2086 If unsure, say N.
2087
2088config ZBOOT_LOAD_ADDRESS
2089 hex "Compressed kernel load address"
2090 default 0xffffffff80400000 if BCM47XX
2091 default 0x0
2092 depends on SYS_SUPPORTS_ZBOOT
2093 help
2094 The address to load compressed kernel, aka vmlinuz.
2095
2096 This is only used if non-zero.
2097
2098config ARCH_FORCE_MAX_ORDER
2099 int "Maximum zone order"
2100 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2101 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2102 default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2103 default "10"
2104 help
2105 The kernel memory allocator divides physically contiguous memory
2106 blocks into "zones", where each zone is a power of two number of
2107 pages. This option selects the largest power of two that the kernel
2108 keeps in the memory allocator. If you need to allocate very large
2109 blocks of physically contiguous memory, then you may need to
2110 increase this value.
2111
2112 The page size is not necessarily 4KB. Keep this in mind
2113 when choosing a value for this option.
2114
2115config BOARD_SCACHE
2116 bool
2117
2118config IP22_CPU_SCACHE
2119 bool
2120 select BOARD_SCACHE
2121
2122#
2123# Support for a MIPS32 / MIPS64 style S-caches
2124#
2125config MIPS_CPU_SCACHE
2126 bool
2127 select BOARD_SCACHE
2128
2129config R5000_CPU_SCACHE
2130 bool
2131 select BOARD_SCACHE
2132
2133config RM7000_CPU_SCACHE
2134 bool
2135 select BOARD_SCACHE
2136
2137config SIBYTE_DMA_PAGEOPS
2138 bool "Use DMA to clear/copy pages"
2139 depends on CPU_SB1
2140 help
2141 Instead of using the CPU to zero and copy pages, use a Data Mover
2142 channel. These DMA channels are otherwise unused by the standard
2143 SiByte Linux port. Seems to give a small performance benefit.
2144
2145config CPU_HAS_PREFETCH
2146 bool
2147
2148config CPU_GENERIC_DUMP_TLB
2149 bool
2150 default y if !CPU_R3000
2151
2152config MIPS_FP_SUPPORT
2153 bool "Floating Point support" if EXPERT
2154 default y
2155 help
2156 Select y to include support for floating point in the kernel
2157 including initialization of FPU hardware, FP context save & restore
2158 and emulation of an FPU where necessary. Without this support any
2159 userland program attempting to use floating point instructions will
2160 receive a SIGILL.
2161
2162 If you know that your userland will not attempt to use floating point
2163 instructions then you can say n here to shrink the kernel a little.
2164
2165 If unsure, say y.
2166
2167config CPU_R2300_FPU
2168 bool
2169 depends on MIPS_FP_SUPPORT
2170 default y if CPU_R3000
2171
2172config CPU_R3K_TLB
2173 bool
2174
2175config CPU_R4K_FPU
2176 bool
2177 depends on MIPS_FP_SUPPORT
2178 default y if !CPU_R2300_FPU
2179
2180config CPU_R4K_CACHE_TLB
2181 bool
2182 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2183
2184config MIPS_MT_SMP
2185 bool "MIPS MT SMP support (1 TC on each available VPE)"
2186 default y
2187 depends on TARGET_ISA_REV > 0 && TARGET_ISA_REV < 6
2188 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MICROMIPS
2189 select CPU_MIPSR2_IRQ_VI
2190 select CPU_MIPSR2_IRQ_EI
2191 select SYNC_R4K
2192 select MIPS_MT
2193 select SMP
2194 select SMP_UP
2195 select SYS_SUPPORTS_SMP
2196 select SYS_SUPPORTS_SCHED_SMT
2197 select MIPS_PERF_SHARED_TC_COUNTERS
2198 help
2199 This is a kernel model which is known as SMVP. This is supported
2200 on cores with the MT ASE and uses the available VPEs to implement
2201 virtual processors which supports SMP. This is equivalent to the
2202 Intel Hyperthreading feature. For further information go to
2203 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2204
2205config MIPS_MT
2206 bool
2207
2208config SCHED_SMT
2209 bool "SMT (multithreading) scheduler support"
2210 depends on SYS_SUPPORTS_SCHED_SMT
2211 default n
2212 help
2213 SMT scheduler support improves the CPU scheduler's decision making
2214 when dealing with MIPS MT enabled cores at a cost of slightly
2215 increased overhead in some places. If unsure say N here.
2216
2217config SYS_SUPPORTS_SCHED_SMT
2218 bool
2219
2220config SYS_SUPPORTS_MULTITHREADING
2221 bool
2222
2223config MIPS_MT_FPAFF
2224 bool "Dynamic FPU affinity for FP-intensive threads"
2225 default y
2226 depends on MIPS_MT_SMP
2227
2228config MIPSR2_TO_R6_EMULATOR
2229 bool "MIPS R2-to-R6 emulator"
2230 depends on CPU_MIPSR6
2231 depends on MIPS_FP_SUPPORT
2232 default y
2233 help
2234 Choose this option if you want to run non-R6 MIPS userland code.
2235 Even if you say 'Y' here, the emulator will still be disabled by
2236 default. You can enable it using the 'mipsr2emu' kernel option.
2237 The only reason this is a build-time option is to save ~14K from the
2238 final kernel image.
2239
2240config SYS_SUPPORTS_VPE_LOADER
2241 bool
2242 depends on SYS_SUPPORTS_MULTITHREADING
2243 help
2244 Indicates that the platform supports the VPE loader, and provides
2245 physical_memsize.
2246
2247config MIPS_VPE_LOADER
2248 bool "VPE loader support."
2249 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2250 select CPU_MIPSR2_IRQ_VI
2251 select CPU_MIPSR2_IRQ_EI
2252 select MIPS_MT
2253 help
2254 Includes a loader for loading an elf relocatable object
2255 onto another VPE and running it.
2256
2257config MIPS_VPE_LOADER_MT
2258 bool
2259 default "y"
2260 depends on MIPS_VPE_LOADER
2261
2262config MIPS_VPE_LOADER_TOM
2263 bool "Load VPE program into memory hidden from linux"
2264 depends on MIPS_VPE_LOADER
2265 default y
2266 help
2267 The loader can use memory that is present but has been hidden from
2268 Linux using the kernel command line option "mem=xxMB". It's up to
2269 you to ensure the amount you put in the option and the space your
2270 program requires is less or equal to the amount physically present.
2271
2272config MIPS_VPE_APSP_API
2273 bool "Enable support for AP/SP API (RTLX)"
2274 depends on MIPS_VPE_LOADER
2275
2276config MIPS_VPE_APSP_API_MT
2277 bool
2278 default "y"
2279 depends on MIPS_VPE_APSP_API
2280
2281config MIPS_CPS
2282 bool "MIPS Coherent Processing System support"
2283 depends on SYS_SUPPORTS_MIPS_CPS
2284 select MIPS_CM
2285 select MIPS_CPS_PM if HOTPLUG_CPU
2286 select SMP
2287 select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
2288 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2289 select SYS_SUPPORTS_HOTPLUG_CPU
2290 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2291 select SYS_SUPPORTS_SMP
2292 select WEAK_ORDERING
2293 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2294 help
2295 Select this if you wish to run an SMP kernel across multiple cores
2296 within a MIPS Coherent Processing System. When this option is
2297 enabled the kernel will probe for other cores and boot them with
2298 no external assistance. It is safe to enable this when hardware
2299 support is unavailable.
2300
2301config MIPS_CPS_PM
2302 depends on MIPS_CPS
2303 bool
2304
2305config MIPS_CM
2306 bool
2307 select MIPS_CPC
2308
2309config MIPS_CPC
2310 bool
2311
2312config SB1_PASS_2_WORKAROUNDS
2313 bool
2314 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2315 default y
2316
2317config SB1_PASS_2_1_WORKAROUNDS
2318 bool
2319 depends on CPU_SB1 && CPU_SB1_PASS_2
2320 default y
2321
2322choice
2323 prompt "SmartMIPS or microMIPS ASE support"
2324
2325config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2326 bool "None"
2327 help
2328 Select this if you want neither microMIPS nor SmartMIPS support
2329
2330config CPU_HAS_SMARTMIPS
2331 depends on SYS_SUPPORTS_SMARTMIPS
2332 bool "SmartMIPS"
2333 help
2334 SmartMIPS is a extension of the MIPS32 architecture aimed at
2335 increased security at both hardware and software level for
2336 smartcards. Enabling this option will allow proper use of the
2337 SmartMIPS instructions by Linux applications. However a kernel with
2338 this option will not work on a MIPS core without SmartMIPS core. If
2339 you don't know you probably don't have SmartMIPS and should say N
2340 here.
2341
2342config CPU_MICROMIPS
2343 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2344 bool "microMIPS"
2345 help
2346 When this option is enabled the kernel will be built using the
2347 microMIPS ISA
2348
2349endchoice
2350
2351config CPU_HAS_MSA
2352 bool "Support for the MIPS SIMD Architecture"
2353 depends on CPU_SUPPORTS_MSA
2354 depends on MIPS_FP_SUPPORT
2355 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2356 help
2357 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2358 and a set of SIMD instructions to operate on them. When this option
2359 is enabled the kernel will support allocating & switching MSA
2360 vector register contexts. If you know that your kernel will only be
2361 running on CPUs which do not support MSA or that your userland will
2362 not be making use of it then you may wish to say N here to reduce
2363 the size & complexity of your kernel.
2364
2365 If unsure, say Y.
2366
2367config CPU_HAS_WB
2368 bool
2369
2370config XKS01
2371 bool
2372
2373config CPU_HAS_DIEI
2374 depends on !CPU_DIEI_BROKEN
2375 bool
2376
2377config CPU_DIEI_BROKEN
2378 bool
2379
2380config CPU_HAS_RIXI
2381 bool
2382
2383config CPU_NO_LOAD_STORE_LR
2384 bool
2385 help
2386 CPU lacks support for unaligned load and store instructions:
2387 LWL, LWR, SWL, SWR (Load/store word left/right).
2388 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2389 systems).
2390
2391#
2392# Vectored interrupt mode is an R2 feature
2393#
2394config CPU_MIPSR2_IRQ_VI
2395 bool
2396
2397#
2398# Extended interrupt mode is an R2 feature
2399#
2400config CPU_MIPSR2_IRQ_EI
2401 bool
2402
2403config CPU_HAS_SYNC
2404 bool
2405 depends on !CPU_R3000
2406 default y
2407
2408#
2409# CPU non-features
2410#
2411
2412# Work around the "daddi" and "daddiu" CPU errata:
2413#
2414# - The `daddi' instruction fails to trap on overflow.
2415# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2416# erratum #23
2417#
2418# - The `daddiu' instruction can produce an incorrect result.
2419# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2420# erratum #41
2421# "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2422# #15
2423# "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
2424# "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
2425config CPU_DADDI_WORKAROUNDS
2426 bool
2427
2428# Work around certain R4000 CPU errata (as implemented by GCC):
2429#
2430# - A double-word or a variable shift may give an incorrect result
2431# if executed immediately after starting an integer division:
2432# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2433# erratum #28
2434# "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2435# #19
2436#
2437# - A double-word or a variable shift may give an incorrect result
2438# if executed while an integer multiplication is in progress:
2439# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2440# errata #16 & #28
2441#
2442# - An integer division may give an incorrect result if started in
2443# a delay slot of a taken branch or a jump:
2444# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2445# erratum #52
2446config CPU_R4000_WORKAROUNDS
2447 bool
2448 select CPU_R4400_WORKAROUNDS
2449
2450# Work around certain R4400 CPU errata (as implemented by GCC):
2451#
2452# - A double-word or a variable shift may give an incorrect result
2453# if executed immediately after starting an integer division:
2454# "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
2455# "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
2456config CPU_R4400_WORKAROUNDS
2457 bool
2458
2459config CPU_R4X00_BUGS64
2460 bool
2461 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2462
2463config MIPS_ASID_SHIFT
2464 int
2465 default 6 if CPU_R3000
2466 default 0
2467
2468config MIPS_ASID_BITS
2469 int
2470 default 0 if MIPS_ASID_BITS_VARIABLE
2471 default 6 if CPU_R3000
2472 default 8
2473
2474config MIPS_ASID_BITS_VARIABLE
2475 bool
2476
2477config MIPS_CRC_SUPPORT
2478 bool
2479
2480# R4600 erratum. Due to the lack of errata information the exact
2481# technical details aren't known. I've experimentally found that disabling
2482# interrupts during indexed I-cache flushes seems to be sufficient to deal
2483# with the issue.
2484config WAR_R4600_V1_INDEX_ICACHEOP
2485 bool
2486
2487# Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata:
2488#
2489# 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2490# Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2491# executed if there is no other dcache activity. If the dcache is
2492# accessed for another instruction immediately preceding when these
2493# cache instructions are executing, it is possible that the dcache
2494# tag match outputs used by these cache instructions will be
2495# incorrect. These cache instructions should be preceded by at least
2496# four instructions that are not any kind of load or store
2497# instruction.
2498#
2499# This is not allowed: lw
2500# nop
2501# nop
2502# nop
2503# cache Hit_Writeback_Invalidate_D
2504#
2505# This is allowed: lw
2506# nop
2507# nop
2508# nop
2509# nop
2510# cache Hit_Writeback_Invalidate_D
2511config WAR_R4600_V1_HIT_CACHEOP
2512 bool
2513
2514# Writeback and invalidate the primary cache dcache before DMA.
2515#
2516# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2517# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2518# operate correctly if the internal data cache refill buffer is empty. These
2519# CACHE instructions should be separated from any potential data cache miss
2520# by a load instruction to an uncached address to empty the response buffer."
2521# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2522# in .pdf format.)
2523config WAR_R4600_V2_HIT_CACHEOP
2524 bool
2525
2526# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2527# the line which this instruction itself exists, the following
2528# operation is not guaranteed."
2529#
2530# Workaround: do two phase flushing for Index_Invalidate_I
2531config WAR_TX49XX_ICACHE_INDEX_INV
2532 bool
2533
2534# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2535# opposes it being called that) where invalid instructions in the same
2536# I-cache line worth of instructions being fetched may case spurious
2537# exceptions.
2538config WAR_ICACHE_REFILLS
2539 bool
2540
2541# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2542# may cause ll / sc and lld / scd sequences to execute non-atomically.
2543config WAR_R10000_LLSC
2544 bool
2545
2546# 34K core erratum: "Problems Executing the TLBR Instruction"
2547config WAR_MIPS34K_MISSED_ITLB
2548 bool
2549
2550#
2551# - Highmem only makes sense for the 32-bit kernel.
2552# - The current highmem code will only work properly on physically indexed
2553# caches such as R3000, SB1, R7000 or those that look like they're virtually
2554# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2555# moment we protect the user and offer the highmem option only on machines
2556# where it's known to be safe. This will not offer highmem on a few systems
2557# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2558# indexed CPUs but we're playing safe.
2559# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2560# know they might have memory configurations that could make use of highmem
2561# support.
2562#
2563config HIGHMEM
2564 bool "High Memory Support"
2565 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2566 select KMAP_LOCAL
2567
2568config CPU_SUPPORTS_HIGHMEM
2569 bool
2570
2571config SYS_SUPPORTS_HIGHMEM
2572 bool
2573
2574config SYS_SUPPORTS_SMARTMIPS
2575 bool
2576
2577config SYS_SUPPORTS_MICROMIPS
2578 bool
2579
2580config SYS_SUPPORTS_MIPS16
2581 bool
2582 help
2583 This option must be set if a kernel might be executed on a MIPS16-
2584 enabled CPU even if MIPS16 is not actually being used. In other
2585 words, it makes the kernel MIPS16-tolerant.
2586
2587config CPU_SUPPORTS_MSA
2588 bool
2589
2590config ARCH_FLATMEM_ENABLE
2591 def_bool y
2592 depends on !NUMA && !CPU_LOONGSON2EF
2593
2594config ARCH_SPARSEMEM_ENABLE
2595 bool
2596
2597config NUMA
2598 bool "NUMA Support"
2599 depends on SYS_SUPPORTS_NUMA
2600 select SMP
2601 select HAVE_SETUP_PER_CPU_AREA
2602 select NEED_PER_CPU_EMBED_FIRST_CHUNK
2603 help
2604 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2605 Access). This option improves performance on systems with more
2606 than two nodes; on two node systems it is generally better to
2607 leave it disabled; on single node systems leave this option
2608 disabled.
2609
2610config SYS_SUPPORTS_NUMA
2611 bool
2612
2613config RELOCATABLE
2614 bool "Relocatable kernel"
2615 depends on SYS_SUPPORTS_RELOCATABLE
2616 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2617 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2618 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2619 CPU_P5600 || CAVIUM_OCTEON_SOC || \
2620 CPU_LOONGSON64
2621 help
2622 This builds a kernel image that retains relocation information
2623 so it can be loaded someplace besides the default 1MB.
2624 The relocations make the kernel binary about 15% larger,
2625 but are discarded at runtime
2626
2627config RELOCATION_TABLE_SIZE
2628 hex "Relocation table size"
2629 depends on RELOCATABLE
2630 range 0x0 0x01000000
2631 default "0x00200000" if CPU_LOONGSON64
2632 default "0x00100000"
2633 help
2634 A table of relocation data will be appended to the kernel binary
2635 and parsed at boot to fix up the relocated kernel.
2636
2637 This option allows the amount of space reserved for the table to be
2638 adjusted, although the default of 1Mb should be ok in most cases.
2639
2640 The build will fail and a valid size suggested if this is too small.
2641
2642 If unsure, leave at the default value.
2643
2644config RANDOMIZE_BASE
2645 bool "Randomize the address of the kernel image"
2646 depends on RELOCATABLE
2647 help
2648 Randomizes the physical and virtual address at which the
2649 kernel image is loaded, as a security feature that
2650 deters exploit attempts relying on knowledge of the location
2651 of kernel internals.
2652
2653 Entropy is generated using any coprocessor 0 registers available.
2654
2655 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2656
2657 If unsure, say N.
2658
2659config RANDOMIZE_BASE_MAX_OFFSET
2660 hex "Maximum kASLR offset" if EXPERT
2661 depends on RANDOMIZE_BASE
2662 range 0x0 0x40000000 if EVA || 64BIT
2663 range 0x0 0x08000000
2664 default "0x01000000"
2665 help
2666 When kASLR is active, this provides the maximum offset that will
2667 be applied to the kernel image. It should be set according to the
2668 amount of physical RAM available in the target system minus
2669 PHYSICAL_START and must be a power of 2.
2670
2671 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2672 EVA or 64-bit. The default is 16Mb.
2673
2674config NODES_SHIFT
2675 int
2676 default "6"
2677 depends on NUMA
2678
2679config HW_PERF_EVENTS
2680 bool "Enable hardware performance counter support for perf events"
2681 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
2682 default y
2683 help
2684 Enable hardware performance counter support for perf events. If
2685 disabled, perf events will use software events only.
2686
2687config DMI
2688 bool "Enable DMI scanning"
2689 depends on MACH_LOONGSON64
2690 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2691 default y
2692 help
2693 Enabled scanning of DMI to identify machine quirks. Say Y
2694 here unless you have verified that your setup is not
2695 affected by entries in the DMI blacklist. Required by PNP
2696 BIOS code.
2697
2698config SMP
2699 bool "Multi-Processing support"
2700 depends on SYS_SUPPORTS_SMP
2701 help
2702 This enables support for systems with more than one CPU. If you have
2703 a system with only one CPU, say N. If you have a system with more
2704 than one CPU, say Y.
2705
2706 If you say N here, the kernel will run on uni- and multiprocessor
2707 machines, but will use only one CPU of a multiprocessor machine. If
2708 you say Y here, the kernel will run on many, but not all,
2709 uniprocessor machines. On a uniprocessor machine, the kernel
2710 will run faster if you say N here.
2711
2712 People using multiprocessor machines who say Y here should also say
2713 Y to "Enhanced Real Time Clock Support", below.
2714
2715 See also the SMP-HOWTO available at
2716 <https://www.tldp.org/docs.html#howto>.
2717
2718 If you don't know what to do here, say N.
2719
2720config HOTPLUG_CPU
2721 bool "Support for hot-pluggable CPUs"
2722 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2723 help
2724 Say Y here to allow turning CPUs off and on. CPUs can be
2725 controlled through /sys/devices/system/cpu.
2726 (Note: power management support will enable this option
2727 automatically on SMP systems. )
2728 Say N if you want to disable CPU hotplug.
2729
2730config SMP_UP
2731 bool
2732
2733config SYS_SUPPORTS_MIPS_CPS
2734 bool
2735
2736config SYS_SUPPORTS_SMP
2737 bool
2738
2739config NR_CPUS_DEFAULT_4
2740 bool
2741
2742config NR_CPUS_DEFAULT_8
2743 bool
2744
2745config NR_CPUS_DEFAULT_16
2746 bool
2747
2748config NR_CPUS_DEFAULT_32
2749 bool
2750
2751config NR_CPUS_DEFAULT_64
2752 bool
2753
2754config NR_CPUS
2755 int "Maximum number of CPUs (2-256)"
2756 range 2 256
2757 depends on SMP
2758 default "4" if NR_CPUS_DEFAULT_4
2759 default "8" if NR_CPUS_DEFAULT_8
2760 default "16" if NR_CPUS_DEFAULT_16
2761 default "32" if NR_CPUS_DEFAULT_32
2762 default "64" if NR_CPUS_DEFAULT_64
2763 help
2764 This allows you to specify the maximum number of CPUs which this
2765 kernel will support. The maximum supported value is 32 for 32-bit
2766 kernel and 64 for 64-bit kernels; the minimum value which makes
2767 sense is 1 for Qemu (useful only for kernel debugging purposes)
2768 and 2 for all others.
2769
2770 This is purely to save memory - each supported CPU adds
2771 approximately eight kilobytes to the kernel image. For best
2772 performance should round up your number of processors to the next
2773 power of two.
2774
2775config MIPS_PERF_SHARED_TC_COUNTERS
2776 bool
2777
2778config MIPS_NR_CPU_NR_MAP_1024
2779 bool
2780
2781config MIPS_NR_CPU_NR_MAP
2782 int
2783 depends on SMP
2784 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2785 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2786
2787#
2788# Timer Interrupt Frequency Configuration
2789#
2790
2791choice
2792 prompt "Timer frequency"
2793 default HZ_250
2794 help
2795 Allows the configuration of the timer frequency.
2796
2797 config HZ_24
2798 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2799
2800 config HZ_48
2801 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2802
2803 config HZ_100
2804 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2805
2806 config HZ_128
2807 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2808
2809 config HZ_250
2810 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2811
2812 config HZ_256
2813 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2814
2815 config HZ_1000
2816 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2817
2818 config HZ_1024
2819 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2820
2821endchoice
2822
2823config SYS_SUPPORTS_24HZ
2824 bool
2825
2826config SYS_SUPPORTS_48HZ
2827 bool
2828
2829config SYS_SUPPORTS_100HZ
2830 bool
2831
2832config SYS_SUPPORTS_128HZ
2833 bool
2834
2835config SYS_SUPPORTS_250HZ
2836 bool
2837
2838config SYS_SUPPORTS_256HZ
2839 bool
2840
2841config SYS_SUPPORTS_1000HZ
2842 bool
2843
2844config SYS_SUPPORTS_1024HZ
2845 bool
2846
2847config SYS_SUPPORTS_ARBIT_HZ
2848 bool
2849 default y if !SYS_SUPPORTS_24HZ && \
2850 !SYS_SUPPORTS_48HZ && \
2851 !SYS_SUPPORTS_100HZ && \
2852 !SYS_SUPPORTS_128HZ && \
2853 !SYS_SUPPORTS_250HZ && \
2854 !SYS_SUPPORTS_256HZ && \
2855 !SYS_SUPPORTS_1000HZ && \
2856 !SYS_SUPPORTS_1024HZ
2857
2858config HZ
2859 int
2860 default 24 if HZ_24
2861 default 48 if HZ_48
2862 default 100 if HZ_100
2863 default 128 if HZ_128
2864 default 250 if HZ_250
2865 default 256 if HZ_256
2866 default 1000 if HZ_1000
2867 default 1024 if HZ_1024
2868
2869config SCHED_HRTICK
2870 def_bool HIGH_RES_TIMERS
2871
2872config ARCH_SUPPORTS_KEXEC
2873 def_bool y
2874
2875config ARCH_SUPPORTS_CRASH_DUMP
2876 def_bool y
2877
2878config ARCH_DEFAULT_CRASH_DUMP
2879 def_bool y
2880
2881config PHYSICAL_START
2882 hex "Physical address where the kernel is loaded"
2883 default "0xffffffff84000000"
2884 depends on CRASH_DUMP
2885 help
2886 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2887 If you plan to use kernel for capturing the crash dump change
2888 this value to start of the reserved region (the "X" value as
2889 specified in the "crashkernel=YM@XM" command line boot parameter
2890 passed to the panic-ed kernel).
2891
2892config MIPS_O32_FP64_SUPPORT
2893 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2894 depends on 32BIT || MIPS32_O32
2895 help
2896 When this is enabled, the kernel will support use of 64-bit floating
2897 point registers with binaries using the O32 ABI along with the
2898 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2899 32-bit MIPS systems this support is at the cost of increasing the
2900 size and complexity of the compiled FPU emulator. Thus if you are
2901 running a MIPS32 system and know that none of your userland binaries
2902 will require 64-bit floating point, you may wish to reduce the size
2903 of your kernel & potentially improve FP emulation performance by
2904 saying N here.
2905
2906 Although binutils currently supports use of this flag the details
2907 concerning its effect upon the O32 ABI in userland are still being
2908 worked on. In order to avoid userland becoming dependent upon current
2909 behaviour before the details have been finalised, this option should
2910 be considered experimental and only enabled by those working upon
2911 said details.
2912
2913 If unsure, say N.
2914
2915config USE_OF
2916 bool
2917 select OF
2918 select OF_EARLY_FLATTREE
2919 select IRQ_DOMAIN
2920
2921config UHI_BOOT
2922 bool
2923
2924config BUILTIN_DTB
2925 bool
2926
2927choice
2928 prompt "Kernel appended dtb support"
2929 depends on USE_OF
2930 default MIPS_NO_APPENDED_DTB
2931
2932 config MIPS_NO_APPENDED_DTB
2933 bool "None"
2934 help
2935 Do not enable appended dtb support.
2936
2937 config MIPS_ELF_APPENDED_DTB
2938 bool "vmlinux"
2939 help
2940 With this option, the boot code will look for a device tree binary
2941 DTB) included in the vmlinux ELF section .appended_dtb. By default
2942 it is empty and the DTB can be appended using binutils command
2943 objcopy:
2944
2945 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2946
2947 This is meant as a backward compatibility convenience for those
2948 systems with a bootloader that can't be upgraded to accommodate
2949 the documented boot protocol using a device tree.
2950
2951 config MIPS_RAW_APPENDED_DTB
2952 bool "vmlinux.bin or vmlinuz.bin"
2953 help
2954 With this option, the boot code will look for a device tree binary
2955 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2956 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2957
2958 This is meant as a backward compatibility convenience for those
2959 systems with a bootloader that can't be upgraded to accommodate
2960 the documented boot protocol using a device tree.
2961
2962 Beware that there is very little in terms of protection against
2963 this option being confused by leftover garbage in memory that might
2964 look like a DTB header after a reboot if no actual DTB is appended
2965 to vmlinux.bin. Do not leave this option active in a production kernel
2966 if you don't intend to always append a DTB.
2967endchoice
2968
2969choice
2970 prompt "Kernel command line type"
2971 depends on !CMDLINE_OVERRIDE
2972 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2973 !MACH_LOONGSON64 && !MIPS_MALTA && \
2974 !CAVIUM_OCTEON_SOC
2975 default MIPS_CMDLINE_FROM_BOOTLOADER
2976
2977 config MIPS_CMDLINE_FROM_DTB
2978 depends on USE_OF
2979 bool "Dtb kernel arguments if available"
2980
2981 config MIPS_CMDLINE_DTB_EXTEND
2982 depends on USE_OF
2983 bool "Extend dtb kernel arguments with bootloader arguments"
2984
2985 config MIPS_CMDLINE_FROM_BOOTLOADER
2986 bool "Bootloader kernel arguments if available"
2987
2988 config MIPS_CMDLINE_BUILTIN_EXTEND
2989 depends on CMDLINE_BOOL
2990 bool "Extend builtin kernel arguments with bootloader arguments"
2991endchoice
2992
2993endmenu
2994
2995config LOCKDEP_SUPPORT
2996 bool
2997 default y
2998
2999config STACKTRACE_SUPPORT
3000 bool
3001 default y
3002
3003config PGTABLE_LEVELS
3004 int
3005 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3006 default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
3007 default 2
3008
3009config MIPS_AUTO_PFN_OFFSET
3010 bool
3011
3012menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3013
3014config PCI_DRIVERS_GENERIC
3015 select PCI_DOMAINS_GENERIC if PCI
3016 bool
3017
3018config PCI_DRIVERS_LEGACY
3019 def_bool !PCI_DRIVERS_GENERIC
3020 select NO_GENERIC_PCI_IOPORT_MAP
3021 select PCI_DOMAINS if PCI
3022
3023#
3024# ISA support is now enabled via select. Too many systems still have the one
3025# or other ISA chip on the board that users don't know about so don't expect
3026# users to choose the right thing ...
3027#
3028config ISA
3029 bool
3030
3031config TC
3032 bool "TURBOchannel support"
3033 depends on MACH_DECSTATION
3034 help
3035 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3036 processors. TURBOchannel programming specifications are available
3037 at:
3038 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3039 and:
3040 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3041 Linux driver support status is documented at:
3042 <http://www.linux-mips.org/wiki/DECstation>
3043
3044config MMU
3045 bool
3046 default y
3047
3048config ARCH_MMAP_RND_BITS_MIN
3049 default 12 if 64BIT
3050 default 8
3051
3052config ARCH_MMAP_RND_BITS_MAX
3053 default 18 if 64BIT
3054 default 15
3055
3056config ARCH_MMAP_RND_COMPAT_BITS_MIN
3057 default 8
3058
3059config ARCH_MMAP_RND_COMPAT_BITS_MAX
3060 default 15
3061
3062config I8253
3063 bool
3064 select CLKSRC_I8253
3065 select CLKEVT_I8253
3066 select MIPS_EXTERNAL_TIMER
3067endmenu
3068
3069config TRAD_SIGNALS
3070 bool
3071
3072config MIPS32_COMPAT
3073 bool
3074
3075config COMPAT
3076 bool
3077
3078config MIPS32_O32
3079 bool "Kernel support for o32 binaries"
3080 depends on 64BIT
3081 select ARCH_WANT_OLD_COMPAT_IPC
3082 select COMPAT
3083 select MIPS32_COMPAT
3084 help
3085 Select this option if you want to run o32 binaries. These are pure
3086 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3087 existing binaries are in this format.
3088
3089 If unsure, say Y.
3090
3091config MIPS32_N32
3092 bool "Kernel support for n32 binaries"
3093 depends on 64BIT
3094 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3095 select COMPAT
3096 select MIPS32_COMPAT
3097 help
3098 Select this option if you want to run n32 binaries. These are
3099 64-bit binaries using 32-bit quantities for addressing and certain
3100 data that would normally be 64-bit. They are used in special
3101 cases.
3102
3103 If unsure, say N.
3104
3105config CC_HAS_MNO_BRANCH_LIKELY
3106 def_bool y
3107 depends on $(cc-option,-mno-branch-likely)
3108
3109# https://github.com/llvm/llvm-project/issues/61045
3110config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
3111 def_bool y if CC_IS_CLANG
3112
3113menu "Power management options"
3114
3115config ARCH_HIBERNATION_POSSIBLE
3116 def_bool y
3117 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3118
3119config ARCH_SUSPEND_POSSIBLE
3120 def_bool y
3121 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3122
3123source "kernel/power/Kconfig"
3124
3125endmenu
3126
3127config MIPS_EXTERNAL_TIMER
3128 bool
3129
3130menu "CPU Power Management"
3131
3132if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3133source "drivers/cpufreq/Kconfig"
3134endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3135
3136source "drivers/cpuidle/Kconfig"
3137
3138endmenu
3139
3140source "arch/mips/kvm/Kconfig"
3141
3142source "arch/mips/vdso/Kconfig"