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Disable MSI also when pcie-octeon.pcie_disable on
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1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3 bool
4 default y
5 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
6 select ARCH_CLOCKSOURCE_DATA
7 select ARCH_DISCARD_MEMBLOCK
8 select ARCH_HAS_ELF_RANDOMIZE
9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10 select ARCH_HAS_UBSAN_SANITIZE_ALL
11 select ARCH_SUPPORTS_UPROBES
12 select ARCH_USE_BUILTIN_BSWAP
13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
14 select ARCH_USE_QUEUED_RWLOCKS
15 select ARCH_USE_QUEUED_SPINLOCKS
16 select ARCH_WANT_IPC_PARSE_VERSION
17 select BUILDTIME_EXTABLE_SORT
18 select CLONE_BACKWARDS
19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20 select CPU_PM if CPU_IDLE
21 select GENERIC_ATOMIC64 if !64BIT
22 select GENERIC_CLOCKEVENTS
23 select GENERIC_CMOS_UPDATE
24 select GENERIC_CPU_AUTOPROBE
25 select GENERIC_IOMAP
26 select GENERIC_IRQ_PROBE
27 select GENERIC_IRQ_SHOW
28 select GENERIC_ISA_DMA if EISA
29 select GENERIC_LIB_ASHLDI3
30 select GENERIC_LIB_ASHRDI3
31 select GENERIC_LIB_CMPDI2
32 select GENERIC_LIB_LSHRDI3
33 select GENERIC_LIB_UCMPDI2
34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_TIME_VSYSCALL
37 select HANDLE_DOMAIN_IRQ
38 select HAVE_ARCH_COMPILER_H
39 select HAVE_ARCH_JUMP_LABEL
40 select HAVE_ARCH_KGDB
41 select HAVE_ARCH_MMAP_RND_BITS if MMU
42 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
43 select HAVE_ARCH_SECCOMP_FILTER
44 select HAVE_ARCH_TRACEHOOK
45 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
46 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
47 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
48 select HAVE_CONTEXT_TRACKING
49 select HAVE_COPY_THREAD_TLS
50 select HAVE_C_RECORDMCOUNT
51 select HAVE_DEBUG_KMEMLEAK
52 select HAVE_DEBUG_STACKOVERFLOW
53 select HAVE_DMA_CONTIGUOUS
54 select HAVE_DYNAMIC_FTRACE
55 select HAVE_EXIT_THREAD
56 select HAVE_FTRACE_MCOUNT_RECORD
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_TRACER
59 select HAVE_GENERIC_DMA_COHERENT
60 select HAVE_IDE
61 select HAVE_IOREMAP_PROT
62 select HAVE_IRQ_EXIT_ON_IRQ_STACK
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select HAVE_KPROBES
65 select HAVE_KRETPROBES
66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
67 select HAVE_MEMBLOCK_NODE_MAP
68 select HAVE_MOD_ARCH_SPECIFIC
69 select HAVE_NMI
70 select HAVE_OPROFILE
71 select HAVE_PERF_EVENTS
72 select HAVE_REGS_AND_STACK_ACCESS_API
73 select HAVE_RSEQ
74 select HAVE_STACKPROTECTOR
75 select HAVE_SYSCALL_TRACEPOINTS
76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
77 select IRQ_FORCED_THREADING
78 select ISA if EISA
79 select MODULES_USE_ELF_RELA if MODULES && 64BIT
80 select MODULES_USE_ELF_REL if MODULES
81 select PERF_USE_VMALLOC
82 select RTC_LIB
83 select SYSCTL_EXCEPTION_TRACE
84 select VIRT_TO_BUS
85
86menu "Machine selection"
87
88choice
89 prompt "System type"
90 default MIPS_GENERIC
91
92config MIPS_GENERIC
93 bool "Generic board-agnostic MIPS kernel"
94 select BOOT_RAW
95 select BUILTIN_DTB
96 select CEVT_R4K
97 select CLKSRC_MIPS_GIC
98 select COMMON_CLK
99 select CPU_MIPSR2_IRQ_VI
100 select CPU_MIPSR2_IRQ_EI
101 select CSRC_R4K
102 select DMA_PERDEV_COHERENT
103 select HAVE_PCI
104 select IRQ_MIPS_CPU
105 select LIBFDT
106 select MIPS_AUTO_PFN_OFFSET
107 select MIPS_CPU_SCACHE
108 select MIPS_GIC
109 select MIPS_L1_CACHE_SHIFT_7
110 select NO_EXCEPT_FILL
111 select PCI_DRIVERS_GENERIC
112 select PINCTRL
113 select SMP_UP if SMP
114 select SWAP_IO_SPACE
115 select SYS_HAS_CPU_MIPS32_R1
116 select SYS_HAS_CPU_MIPS32_R2
117 select SYS_HAS_CPU_MIPS32_R6
118 select SYS_HAS_CPU_MIPS64_R1
119 select SYS_HAS_CPU_MIPS64_R2
120 select SYS_HAS_CPU_MIPS64_R6
121 select SYS_SUPPORTS_32BIT_KERNEL
122 select SYS_SUPPORTS_64BIT_KERNEL
123 select SYS_SUPPORTS_BIG_ENDIAN
124 select SYS_SUPPORTS_HIGHMEM
125 select SYS_SUPPORTS_LITTLE_ENDIAN
126 select SYS_SUPPORTS_MICROMIPS
127 select SYS_SUPPORTS_MIPS_CPS
128 select SYS_SUPPORTS_MIPS16
129 select SYS_SUPPORTS_MULTITHREADING
130 select SYS_SUPPORTS_RELOCATABLE
131 select SYS_SUPPORTS_SMARTMIPS
132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138 select USE_OF
139 select UHI_BOOT
140 help
141 Select this to build a kernel which aims to support multiple boards,
142 generally using a flattened device tree passed from the bootloader
143 using the boot protocol defined in the UHI (Unified Hosting
144 Interface) specification.
145
146config MIPS_ALCHEMY
147 bool "Alchemy processor based machines"
148 select PHYS_ADDR_T_64BIT
149 select CEVT_R4K
150 select CSRC_R4K
151 select IRQ_MIPS_CPU
152 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
153 select SYS_HAS_CPU_MIPS32_R1
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_APM_EMULATION
156 select GPIOLIB
157 select SYS_SUPPORTS_ZBOOT
158 select COMMON_CLK
159
160config AR7
161 bool "Texas Instruments AR7"
162 select BOOT_ELF32
163 select DMA_NONCOHERENT
164 select CEVT_R4K
165 select CSRC_R4K
166 select IRQ_MIPS_CPU
167 select NO_EXCEPT_FILL
168 select SWAP_IO_SPACE
169 select SYS_HAS_CPU_MIPS32_R1
170 select SYS_HAS_EARLY_PRINTK
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_LITTLE_ENDIAN
173 select SYS_SUPPORTS_MIPS16
174 select SYS_SUPPORTS_ZBOOT_UART16550
175 select GPIOLIB
176 select VLYNQ
177 select HAVE_CLK
178 help
179 Support for the Texas Instruments AR7 System-on-a-Chip
180 family: TNETD7100, 7200 and 7300.
181
182config ATH25
183 bool "Atheros AR231x/AR531x SoC support"
184 select CEVT_R4K
185 select CSRC_R4K
186 select DMA_NONCOHERENT
187 select IRQ_MIPS_CPU
188 select IRQ_DOMAIN
189 select SYS_HAS_CPU_MIPS32_R1
190 select SYS_SUPPORTS_BIG_ENDIAN
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_HAS_EARLY_PRINTK
193 help
194 Support for Atheros AR231x and Atheros AR531x based boards
195
196config ATH79
197 bool "Atheros AR71XX/AR724X/AR913X based boards"
198 select ARCH_HAS_RESET_CONTROLLER
199 select BOOT_RAW
200 select CEVT_R4K
201 select CSRC_R4K
202 select DMA_NONCOHERENT
203 select GPIOLIB
204 select PINCTRL
205 select HAVE_CLK
206 select COMMON_CLK
207 select CLKDEV_LOOKUP
208 select IRQ_MIPS_CPU
209 select MIPS_MACHINE
210 select SYS_HAS_CPU_MIPS32_R2
211 select SYS_HAS_EARLY_PRINTK
212 select SYS_SUPPORTS_32BIT_KERNEL
213 select SYS_SUPPORTS_BIG_ENDIAN
214 select SYS_SUPPORTS_MIPS16
215 select SYS_SUPPORTS_ZBOOT_UART_PROM
216 select USE_OF
217 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
218 help
219 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
220
221config BMIPS_GENERIC
222 bool "Broadcom Generic BMIPS kernel"
223 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
224 select ARCH_HAS_PHYS_TO_DMA
225 select BOOT_RAW
226 select NO_EXCEPT_FILL
227 select USE_OF
228 select CEVT_R4K
229 select CSRC_R4K
230 select SYNC_R4K
231 select COMMON_CLK
232 select BCM6345_L1_IRQ
233 select BCM7038_L1_IRQ
234 select BCM7120_L2_IRQ
235 select BRCMSTB_L2_IRQ
236 select IRQ_MIPS_CPU
237 select DMA_NONCOHERENT
238 select SYS_SUPPORTS_32BIT_KERNEL
239 select SYS_SUPPORTS_LITTLE_ENDIAN
240 select SYS_SUPPORTS_BIG_ENDIAN
241 select SYS_SUPPORTS_HIGHMEM
242 select SYS_HAS_CPU_BMIPS32_3300
243 select SYS_HAS_CPU_BMIPS4350
244 select SYS_HAS_CPU_BMIPS4380
245 select SYS_HAS_CPU_BMIPS5000
246 select SWAP_IO_SPACE
247 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
248 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
249 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
250 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
251 select HARDIRQS_SW_RESEND
252 help
253 Build a generic DT-based kernel image that boots on select
254 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
255 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
256 must be set appropriately for your board.
257
258config BCM47XX
259 bool "Broadcom BCM47XX based boards"
260 select BOOT_RAW
261 select CEVT_R4K
262 select CSRC_R4K
263 select DMA_NONCOHERENT
264 select HAVE_PCI
265 select IRQ_MIPS_CPU
266 select SYS_HAS_CPU_MIPS32_R1
267 select NO_EXCEPT_FILL
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_LITTLE_ENDIAN
270 select SYS_SUPPORTS_MIPS16
271 select SYS_SUPPORTS_ZBOOT
272 select SYS_HAS_EARLY_PRINTK
273 select USE_GENERIC_EARLY_PRINTK_8250
274 select GPIOLIB
275 select LEDS_GPIO_REGISTER
276 select BCM47XX_NVRAM
277 select BCM47XX_SPROM
278 select BCM47XX_SSB if !BCM47XX_BCMA
279 help
280 Support for BCM47XX based boards
281
282config BCM63XX
283 bool "Broadcom BCM63XX based boards"
284 select BOOT_RAW
285 select CEVT_R4K
286 select CSRC_R4K
287 select SYNC_R4K
288 select DMA_NONCOHERENT
289 select IRQ_MIPS_CPU
290 select SYS_SUPPORTS_32BIT_KERNEL
291 select SYS_SUPPORTS_BIG_ENDIAN
292 select SYS_HAS_EARLY_PRINTK
293 select SWAP_IO_SPACE
294 select GPIOLIB
295 select HAVE_CLK
296 select MIPS_L1_CACHE_SHIFT_4
297 select CLKDEV_LOOKUP
298 help
299 Support for BCM63XX based boards
300
301config MIPS_COBALT
302 bool "Cobalt Server"
303 select CEVT_R4K
304 select CSRC_R4K
305 select CEVT_GT641XX
306 select DMA_NONCOHERENT
307 select FORCE_PCI
308 select I8253
309 select I8259
310 select IRQ_MIPS_CPU
311 select IRQ_GT641XX
312 select PCI_GT64XXX_PCI0
313 select SYS_HAS_CPU_NEVADA
314 select SYS_HAS_EARLY_PRINTK
315 select SYS_SUPPORTS_32BIT_KERNEL
316 select SYS_SUPPORTS_64BIT_KERNEL
317 select SYS_SUPPORTS_LITTLE_ENDIAN
318 select USE_GENERIC_EARLY_PRINTK_8250
319
320config MACH_DECSTATION
321 bool "DECstations"
322 select BOOT_ELF32
323 select CEVT_DS1287
324 select CEVT_R4K if CPU_R4X00
325 select CSRC_IOASIC
326 select CSRC_R4K if CPU_R4X00
327 select CPU_DADDI_WORKAROUNDS if 64BIT
328 select CPU_R4000_WORKAROUNDS if 64BIT
329 select CPU_R4400_WORKAROUNDS if 64BIT
330 select DMA_NONCOHERENT
331 select NO_IOPORT_MAP
332 select IRQ_MIPS_CPU
333 select SYS_HAS_CPU_R3000
334 select SYS_HAS_CPU_R4X00
335 select SYS_SUPPORTS_32BIT_KERNEL
336 select SYS_SUPPORTS_64BIT_KERNEL
337 select SYS_SUPPORTS_LITTLE_ENDIAN
338 select SYS_SUPPORTS_128HZ
339 select SYS_SUPPORTS_256HZ
340 select SYS_SUPPORTS_1024HZ
341 select MIPS_L1_CACHE_SHIFT_4
342 help
343 This enables support for DEC's MIPS based workstations. For details
344 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
345 DECstation porting pages on <http://decstation.unix-ag.org/>.
346
347 If you have one of the following DECstation Models you definitely
348 want to choose R4xx0 for the CPU Type:
349
350 DECstation 5000/50
351 DECstation 5000/150
352 DECstation 5000/260
353 DECsystem 5900/260
354
355 otherwise choose R3000.
356
357config MACH_JAZZ
358 bool "Jazz family of machines"
359 select ARCH_MIGHT_HAVE_PC_PARPORT
360 select ARCH_MIGHT_HAVE_PC_SERIO
361 select FW_ARC
362 select FW_ARC32
363 select ARCH_MAY_HAVE_PC_FDC
364 select CEVT_R4K
365 select CSRC_R4K
366 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
367 select GENERIC_ISA_DMA
368 select HAVE_PCSPKR_PLATFORM
369 select IRQ_MIPS_CPU
370 select I8253
371 select I8259
372 select ISA
373 select SYS_HAS_CPU_R4X00
374 select SYS_SUPPORTS_32BIT_KERNEL
375 select SYS_SUPPORTS_64BIT_KERNEL
376 select SYS_SUPPORTS_100HZ
377 help
378 This a family of machines based on the MIPS R4030 chipset which was
379 used by several vendors to build RISC/os and Windows NT workstations.
380 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
381 Olivetti M700-10 workstations.
382
383config MACH_INGENIC
384 bool "Ingenic SoC based machines"
385 select SYS_SUPPORTS_32BIT_KERNEL
386 select SYS_SUPPORTS_LITTLE_ENDIAN
387 select SYS_SUPPORTS_ZBOOT_UART16550
388 select DMA_NONCOHERENT
389 select IRQ_MIPS_CPU
390 select PINCTRL
391 select GPIOLIB
392 select COMMON_CLK
393 select GENERIC_IRQ_CHIP
394 select BUILTIN_DTB
395 select USE_OF
396 select LIBFDT
397
398config LANTIQ
399 bool "Lantiq based platforms"
400 select DMA_NONCOHERENT
401 select IRQ_MIPS_CPU
402 select CEVT_R4K
403 select CSRC_R4K
404 select SYS_HAS_CPU_MIPS32_R1
405 select SYS_HAS_CPU_MIPS32_R2
406 select SYS_SUPPORTS_BIG_ENDIAN
407 select SYS_SUPPORTS_32BIT_KERNEL
408 select SYS_SUPPORTS_MIPS16
409 select SYS_SUPPORTS_MULTITHREADING
410 select SYS_SUPPORTS_VPE_LOADER
411 select SYS_HAS_EARLY_PRINTK
412 select GPIOLIB
413 select SWAP_IO_SPACE
414 select BOOT_RAW
415 select CLKDEV_LOOKUP
416 select USE_OF
417 select PINCTRL
418 select PINCTRL_LANTIQ
419 select ARCH_HAS_RESET_CONTROLLER
420 select RESET_CONTROLLER
421
422config LASAT
423 bool "LASAT Networks platforms"
424 select CEVT_R4K
425 select CRC32
426 select CSRC_R4K
427 select DMA_NONCOHERENT
428 select SYS_HAS_EARLY_PRINTK
429 select HAVE_PCI
430 select IRQ_MIPS_CPU
431 select PCI_GT64XXX_PCI0
432 select MIPS_NILE4
433 select R5000_CPU_SCACHE
434 select SYS_HAS_CPU_R5000
435 select SYS_SUPPORTS_32BIT_KERNEL
436 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
437 select SYS_SUPPORTS_LITTLE_ENDIAN
438
439config MACH_LOONGSON32
440 bool "Loongson-1 family of machines"
441 select SYS_SUPPORTS_ZBOOT
442 help
443 This enables support for the Loongson-1 family of machines.
444
445 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
446 the Institute of Computing Technology (ICT), Chinese Academy of
447 Sciences (CAS).
448
449config MACH_LOONGSON64
450 bool "Loongson-2/3 family of machines"
451 select SYS_SUPPORTS_ZBOOT
452 help
453 This enables the support of Loongson-2/3 family of machines.
454
455 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
456 family of multi-core CPUs. They are both 64-bit general-purpose
457 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
458 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
459 in the People's Republic of China. The chief architect is Professor
460 Weiwu Hu.
461
462config MACH_PISTACHIO
463 bool "IMG Pistachio SoC based boards"
464 select BOOT_ELF32
465 select BOOT_RAW
466 select CEVT_R4K
467 select CLKSRC_MIPS_GIC
468 select COMMON_CLK
469 select CSRC_R4K
470 select DMA_NONCOHERENT
471 select GPIOLIB
472 select IRQ_MIPS_CPU
473 select LIBFDT
474 select MFD_SYSCON
475 select MIPS_CPU_SCACHE
476 select MIPS_GIC
477 select PINCTRL
478 select REGULATOR
479 select SYS_HAS_CPU_MIPS32_R2
480 select SYS_SUPPORTS_32BIT_KERNEL
481 select SYS_SUPPORTS_LITTLE_ENDIAN
482 select SYS_SUPPORTS_MIPS_CPS
483 select SYS_SUPPORTS_MULTITHREADING
484 select SYS_SUPPORTS_RELOCATABLE
485 select SYS_SUPPORTS_ZBOOT
486 select SYS_HAS_EARLY_PRINTK
487 select USE_GENERIC_EARLY_PRINTK_8250
488 select USE_OF
489 help
490 This enables support for the IMG Pistachio SoC platform.
491
492config MIPS_MALTA
493 bool "MIPS Malta board"
494 select ARCH_MAY_HAVE_PC_FDC
495 select ARCH_MIGHT_HAVE_PC_PARPORT
496 select ARCH_MIGHT_HAVE_PC_SERIO
497 select BOOT_ELF32
498 select BOOT_RAW
499 select BUILTIN_DTB
500 select CEVT_R4K
501 select CLKSRC_MIPS_GIC
502 select COMMON_CLK
503 select CSRC_R4K
504 select DMA_MAYBE_COHERENT
505 select GENERIC_ISA_DMA
506 select HAVE_PCSPKR_PLATFORM
507 select HAVE_PCI
508 select I8253
509 select I8259
510 select IRQ_MIPS_CPU
511 select LIBFDT
512 select MIPS_BONITO64
513 select MIPS_CPU_SCACHE
514 select MIPS_GIC
515 select MIPS_L1_CACHE_SHIFT_6
516 select MIPS_MSC
517 select PCI_GT64XXX_PCI0
518 select SMP_UP if SMP
519 select SWAP_IO_SPACE
520 select SYS_HAS_CPU_MIPS32_R1
521 select SYS_HAS_CPU_MIPS32_R2
522 select SYS_HAS_CPU_MIPS32_R3_5
523 select SYS_HAS_CPU_MIPS32_R5
524 select SYS_HAS_CPU_MIPS32_R6
525 select SYS_HAS_CPU_MIPS64_R1
526 select SYS_HAS_CPU_MIPS64_R2
527 select SYS_HAS_CPU_MIPS64_R6
528 select SYS_HAS_CPU_NEVADA
529 select SYS_HAS_CPU_RM7000
530 select SYS_SUPPORTS_32BIT_KERNEL
531 select SYS_SUPPORTS_64BIT_KERNEL
532 select SYS_SUPPORTS_BIG_ENDIAN
533 select SYS_SUPPORTS_HIGHMEM
534 select SYS_SUPPORTS_LITTLE_ENDIAN
535 select SYS_SUPPORTS_MICROMIPS
536 select SYS_SUPPORTS_MIPS16
537 select SYS_SUPPORTS_MIPS_CMP
538 select SYS_SUPPORTS_MIPS_CPS
539 select SYS_SUPPORTS_MULTITHREADING
540 select SYS_SUPPORTS_RELOCATABLE
541 select SYS_SUPPORTS_SMARTMIPS
542 select SYS_SUPPORTS_VPE_LOADER
543 select SYS_SUPPORTS_ZBOOT
544 select USE_OF
545 select ZONE_DMA32 if 64BIT
546 help
547 This enables support for the MIPS Technologies Malta evaluation
548 board.
549
550config MACH_PIC32
551 bool "Microchip PIC32 Family"
552 help
553 This enables support for the Microchip PIC32 family of platforms.
554
555 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
556 microcontrollers.
557
558config NEC_MARKEINS
559 bool "NEC EMMA2RH Mark-eins board"
560 select SOC_EMMA2RH
561 select HAVE_PCI
562 help
563 This enables support for the NEC Electronics Mark-eins boards.
564
565config MACH_VR41XX
566 bool "NEC VR4100 series based machines"
567 select CEVT_R4K
568 select CSRC_R4K
569 select SYS_HAS_CPU_VR41XX
570 select SYS_SUPPORTS_MIPS16
571 select GPIOLIB
572
573config NXP_STB220
574 bool "NXP STB220 board"
575 select SOC_PNX833X
576 help
577 Support for NXP Semiconductors STB220 Development Board.
578
579config NXP_STB225
580 bool "NXP 225 board"
581 select SOC_PNX833X
582 select SOC_PNX8335
583 help
584 Support for NXP Semiconductors STB225 Development Board.
585
586config PMC_MSP
587 bool "PMC-Sierra MSP chipsets"
588 select CEVT_R4K
589 select CSRC_R4K
590 select DMA_NONCOHERENT
591 select SWAP_IO_SPACE
592 select NO_EXCEPT_FILL
593 select BOOT_RAW
594 select SYS_HAS_CPU_MIPS32_R1
595 select SYS_HAS_CPU_MIPS32_R2
596 select SYS_SUPPORTS_32BIT_KERNEL
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_MIPS16
599 select IRQ_MIPS_CPU
600 select SERIAL_8250
601 select SERIAL_8250_CONSOLE
602 select USB_EHCI_BIG_ENDIAN_MMIO
603 select USB_EHCI_BIG_ENDIAN_DESC
604 help
605 This adds support for the PMC-Sierra family of Multi-Service
606 Processor System-On-A-Chips. These parts include a number
607 of integrated peripherals, interfaces and DSPs in addition to
608 a variety of MIPS cores.
609
610config RALINK
611 bool "Ralink based machines"
612 select CEVT_R4K
613 select CSRC_R4K
614 select BOOT_RAW
615 select DMA_NONCOHERENT
616 select IRQ_MIPS_CPU
617 select USE_OF
618 select SYS_HAS_CPU_MIPS32_R1
619 select SYS_HAS_CPU_MIPS32_R2
620 select SYS_SUPPORTS_32BIT_KERNEL
621 select SYS_SUPPORTS_LITTLE_ENDIAN
622 select SYS_SUPPORTS_MIPS16
623 select SYS_HAS_EARLY_PRINTK
624 select CLKDEV_LOOKUP
625 select ARCH_HAS_RESET_CONTROLLER
626 select RESET_CONTROLLER
627
628config SGI_IP22
629 bool "SGI IP22 (Indy/Indigo2)"
630 select FW_ARC
631 select FW_ARC32
632 select ARCH_MIGHT_HAVE_PC_SERIO
633 select BOOT_ELF32
634 select CEVT_R4K
635 select CSRC_R4K
636 select DEFAULT_SGI_PARTITION
637 select DMA_NONCOHERENT
638 select HAVE_EISA
639 select I8253
640 select I8259
641 select IP22_CPU_SCACHE
642 select IRQ_MIPS_CPU
643 select GENERIC_ISA_DMA_SUPPORT_BROKEN
644 select SGI_HAS_I8042
645 select SGI_HAS_INDYDOG
646 select SGI_HAS_HAL2
647 select SGI_HAS_SEEQ
648 select SGI_HAS_WD93
649 select SGI_HAS_ZILOG
650 select SWAP_IO_SPACE
651 select SYS_HAS_CPU_R4X00
652 select SYS_HAS_CPU_R5000
653 #
654 # Disable EARLY_PRINTK for now since it leads to overwritten prom
655 # memory during early boot on some machines.
656 #
657 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
658 # for a more details discussion
659 #
660 # select SYS_HAS_EARLY_PRINTK
661 select SYS_SUPPORTS_32BIT_KERNEL
662 select SYS_SUPPORTS_64BIT_KERNEL
663 select SYS_SUPPORTS_BIG_ENDIAN
664 select MIPS_L1_CACHE_SHIFT_7
665 help
666 This are the SGI Indy, Challenge S and Indigo2, as well as certain
667 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
668 that runs on these, say Y here.
669
670config SGI_IP27
671 bool "SGI IP27 (Origin200/2000)"
672 select ARCH_HAS_PHYS_TO_DMA
673 select FW_ARC
674 select FW_ARC64
675 select BOOT_ELF64
676 select DEFAULT_SGI_PARTITION
677 select SYS_HAS_EARLY_PRINTK
678 select HAVE_PCI
679 select NR_CPUS_DEFAULT_64
680 select SYS_HAS_CPU_R10000
681 select SYS_SUPPORTS_64BIT_KERNEL
682 select SYS_SUPPORTS_BIG_ENDIAN
683 select SYS_SUPPORTS_NUMA
684 select SYS_SUPPORTS_SMP
685 select MIPS_L1_CACHE_SHIFT_7
686 help
687 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
688 workstations. To compile a Linux kernel that runs on these, say Y
689 here.
690
691config SGI_IP28
692 bool "SGI IP28 (Indigo2 R10k)"
693 select FW_ARC
694 select FW_ARC64
695 select ARCH_MIGHT_HAVE_PC_SERIO
696 select BOOT_ELF64
697 select CEVT_R4K
698 select CSRC_R4K
699 select DEFAULT_SGI_PARTITION
700 select DMA_NONCOHERENT
701 select GENERIC_ISA_DMA_SUPPORT_BROKEN
702 select IRQ_MIPS_CPU
703 select HAVE_EISA
704 select I8253
705 select I8259
706 select SGI_HAS_I8042
707 select SGI_HAS_INDYDOG
708 select SGI_HAS_HAL2
709 select SGI_HAS_SEEQ
710 select SGI_HAS_WD93
711 select SGI_HAS_ZILOG
712 select SWAP_IO_SPACE
713 select SYS_HAS_CPU_R10000
714 #
715 # Disable EARLY_PRINTK for now since it leads to overwritten prom
716 # memory during early boot on some machines.
717 #
718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
719 # for a more details discussion
720 #
721 # select SYS_HAS_EARLY_PRINTK
722 select SYS_SUPPORTS_64BIT_KERNEL
723 select SYS_SUPPORTS_BIG_ENDIAN
724 select MIPS_L1_CACHE_SHIFT_7
725 help
726 This is the SGI Indigo2 with R10000 processor. To compile a Linux
727 kernel that runs on these, say Y here.
728
729config SGI_IP32
730 bool "SGI IP32 (O2)"
731 select ARCH_HAS_PHYS_TO_DMA
732 select FW_ARC
733 select FW_ARC32
734 select BOOT_ELF32
735 select CEVT_R4K
736 select CSRC_R4K
737 select DMA_NONCOHERENT
738 select HAVE_PCI
739 select IRQ_MIPS_CPU
740 select R5000_CPU_SCACHE
741 select RM7000_CPU_SCACHE
742 select SYS_HAS_CPU_R5000
743 select SYS_HAS_CPU_R10000 if BROKEN
744 select SYS_HAS_CPU_RM7000
745 select SYS_HAS_CPU_NEVADA
746 select SYS_SUPPORTS_64BIT_KERNEL
747 select SYS_SUPPORTS_BIG_ENDIAN
748 help
749 If you want this kernel to run on SGI O2 workstation, say Y here.
750
751config SIBYTE_CRHINE
752 bool "Sibyte BCM91120C-CRhine"
753 select BOOT_ELF32
754 select SIBYTE_BCM1120
755 select SWAP_IO_SPACE
756 select SYS_HAS_CPU_SB1
757 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_LITTLE_ENDIAN
759
760config SIBYTE_CARMEL
761 bool "Sibyte BCM91120x-Carmel"
762 select BOOT_ELF32
763 select SIBYTE_BCM1120
764 select SWAP_IO_SPACE
765 select SYS_HAS_CPU_SB1
766 select SYS_SUPPORTS_BIG_ENDIAN
767 select SYS_SUPPORTS_LITTLE_ENDIAN
768
769config SIBYTE_CRHONE
770 bool "Sibyte BCM91125C-CRhone"
771 select BOOT_ELF32
772 select SIBYTE_BCM1125
773 select SWAP_IO_SPACE
774 select SYS_HAS_CPU_SB1
775 select SYS_SUPPORTS_BIG_ENDIAN
776 select SYS_SUPPORTS_HIGHMEM
777 select SYS_SUPPORTS_LITTLE_ENDIAN
778
779config SIBYTE_RHONE
780 bool "Sibyte BCM91125E-Rhone"
781 select BOOT_ELF32
782 select SIBYTE_BCM1125H
783 select SWAP_IO_SPACE
784 select SYS_HAS_CPU_SB1
785 select SYS_SUPPORTS_BIG_ENDIAN
786 select SYS_SUPPORTS_LITTLE_ENDIAN
787
788config SIBYTE_SWARM
789 bool "Sibyte BCM91250A-SWARM"
790 select BOOT_ELF32
791 select HAVE_PATA_PLATFORM
792 select SIBYTE_SB1250
793 select SWAP_IO_SPACE
794 select SYS_HAS_CPU_SB1
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
797 select SYS_SUPPORTS_LITTLE_ENDIAN
798 select ZONE_DMA32 if 64BIT
799 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
800
801config SIBYTE_LITTLESUR
802 bool "Sibyte BCM91250C2-LittleSur"
803 select BOOT_ELF32
804 select HAVE_PATA_PLATFORM
805 select SIBYTE_SB1250
806 select SWAP_IO_SPACE
807 select SYS_HAS_CPU_SB1
808 select SYS_SUPPORTS_BIG_ENDIAN
809 select SYS_SUPPORTS_HIGHMEM
810 select SYS_SUPPORTS_LITTLE_ENDIAN
811 select ZONE_DMA32 if 64BIT
812
813config SIBYTE_SENTOSA
814 bool "Sibyte BCM91250E-Sentosa"
815 select BOOT_ELF32
816 select SIBYTE_SB1250
817 select SWAP_IO_SPACE
818 select SYS_HAS_CPU_SB1
819 select SYS_SUPPORTS_BIG_ENDIAN
820 select SYS_SUPPORTS_LITTLE_ENDIAN
821 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
822
823config SIBYTE_BIGSUR
824 bool "Sibyte BCM91480B-BigSur"
825 select BOOT_ELF32
826 select NR_CPUS_DEFAULT_4
827 select SIBYTE_BCM1x80
828 select SWAP_IO_SPACE
829 select SYS_HAS_CPU_SB1
830 select SYS_SUPPORTS_BIG_ENDIAN
831 select SYS_SUPPORTS_HIGHMEM
832 select SYS_SUPPORTS_LITTLE_ENDIAN
833 select ZONE_DMA32 if 64BIT
834 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
835
836config SNI_RM
837 bool "SNI RM200/300/400"
838 select FW_ARC if CPU_LITTLE_ENDIAN
839 select FW_ARC32 if CPU_LITTLE_ENDIAN
840 select FW_SNIPROM if CPU_BIG_ENDIAN
841 select ARCH_MAY_HAVE_PC_FDC
842 select ARCH_MIGHT_HAVE_PC_PARPORT
843 select ARCH_MIGHT_HAVE_PC_SERIO
844 select BOOT_ELF32
845 select CEVT_R4K
846 select CSRC_R4K
847 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
848 select DMA_NONCOHERENT
849 select GENERIC_ISA_DMA
850 select HAVE_EISA
851 select HAVE_PCSPKR_PLATFORM
852 select HAVE_PCI
853 select IRQ_MIPS_CPU
854 select I8253
855 select I8259
856 select ISA
857 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
858 select SYS_HAS_CPU_R4X00
859 select SYS_HAS_CPU_R5000
860 select SYS_HAS_CPU_R10000
861 select R5000_CPU_SCACHE
862 select SYS_HAS_EARLY_PRINTK
863 select SYS_SUPPORTS_32BIT_KERNEL
864 select SYS_SUPPORTS_64BIT_KERNEL
865 select SYS_SUPPORTS_BIG_ENDIAN
866 select SYS_SUPPORTS_HIGHMEM
867 select SYS_SUPPORTS_LITTLE_ENDIAN
868 help
869 The SNI RM200/300/400 are MIPS-based machines manufactured by
870 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
871 Technology and now in turn merged with Fujitsu. Say Y here to
872 support this machine type.
873
874config MACH_TX39XX
875 bool "Toshiba TX39 series based machines"
876
877config MACH_TX49XX
878 bool "Toshiba TX49 series based machines"
879
880config MIKROTIK_RB532
881 bool "Mikrotik RB532 boards"
882 select CEVT_R4K
883 select CSRC_R4K
884 select DMA_NONCOHERENT
885 select HAVE_PCI
886 select IRQ_MIPS_CPU
887 select SYS_HAS_CPU_MIPS32_R1
888 select SYS_SUPPORTS_32BIT_KERNEL
889 select SYS_SUPPORTS_LITTLE_ENDIAN
890 select SWAP_IO_SPACE
891 select BOOT_RAW
892 select GPIOLIB
893 select MIPS_L1_CACHE_SHIFT_4
894 help
895 Support the Mikrotik(tm) RouterBoard 532 series,
896 based on the IDT RC32434 SoC.
897
898config CAVIUM_OCTEON_SOC
899 bool "Cavium Networks Octeon SoC based boards"
900 select CEVT_R4K
901 select ARCH_HAS_PHYS_TO_DMA
902 select HAVE_RAPIDIO
903 select PHYS_ADDR_T_64BIT
904 select SYS_SUPPORTS_64BIT_KERNEL
905 select SYS_SUPPORTS_BIG_ENDIAN
906 select EDAC_SUPPORT
907 select EDAC_ATOMIC_SCRUB
908 select SYS_SUPPORTS_LITTLE_ENDIAN
909 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
910 select SYS_HAS_EARLY_PRINTK
911 select SYS_HAS_CPU_CAVIUM_OCTEON
912 select HAVE_PCI
913 select ZONE_DMA32
914 select HOLES_IN_ZONE
915 select GPIOLIB
916 select LIBFDT
917 select USE_OF
918 select ARCH_SPARSEMEM_ENABLE
919 select SYS_SUPPORTS_SMP
920 select NR_CPUS_DEFAULT_64
921 select MIPS_NR_CPU_NR_MAP_1024
922 select BUILTIN_DTB
923 select MTD_COMPLEX_MAPPINGS
924 select SWIOTLB
925 select SYS_SUPPORTS_RELOCATABLE
926 help
927 This option supports all of the Octeon reference boards from Cavium
928 Networks. It builds a kernel that dynamically determines the Octeon
929 CPU type and supports all known board reference implementations.
930 Some of the supported boards are:
931 EBT3000
932 EBH3000
933 EBH3100
934 Thunder
935 Kodama
936 Hikari
937 Say Y here for most Octeon reference boards.
938
939config NLM_XLR_BOARD
940 bool "Netlogic XLR/XLS based systems"
941 select BOOT_ELF32
942 select NLM_COMMON
943 select SYS_HAS_CPU_XLR
944 select SYS_SUPPORTS_SMP
945 select HAVE_PCI
946 select SWAP_IO_SPACE
947 select SYS_SUPPORTS_32BIT_KERNEL
948 select SYS_SUPPORTS_64BIT_KERNEL
949 select PHYS_ADDR_T_64BIT
950 select SYS_SUPPORTS_BIG_ENDIAN
951 select SYS_SUPPORTS_HIGHMEM
952 select NR_CPUS_DEFAULT_32
953 select CEVT_R4K
954 select CSRC_R4K
955 select IRQ_MIPS_CPU
956 select ZONE_DMA32 if 64BIT
957 select SYNC_R4K
958 select SYS_HAS_EARLY_PRINTK
959 select SYS_SUPPORTS_ZBOOT
960 select SYS_SUPPORTS_ZBOOT_UART16550
961 help
962 Support for systems based on Netlogic XLR and XLS processors.
963 Say Y here if you have a XLR or XLS based board.
964
965config NLM_XLP_BOARD
966 bool "Netlogic XLP based systems"
967 select BOOT_ELF32
968 select NLM_COMMON
969 select SYS_HAS_CPU_XLP
970 select SYS_SUPPORTS_SMP
971 select HAVE_PCI
972 select SYS_SUPPORTS_32BIT_KERNEL
973 select SYS_SUPPORTS_64BIT_KERNEL
974 select PHYS_ADDR_T_64BIT
975 select GPIOLIB
976 select SYS_SUPPORTS_BIG_ENDIAN
977 select SYS_SUPPORTS_LITTLE_ENDIAN
978 select SYS_SUPPORTS_HIGHMEM
979 select NR_CPUS_DEFAULT_32
980 select CEVT_R4K
981 select CSRC_R4K
982 select IRQ_MIPS_CPU
983 select ZONE_DMA32 if 64BIT
984 select SYNC_R4K
985 select SYS_HAS_EARLY_PRINTK
986 select USE_OF
987 select SYS_SUPPORTS_ZBOOT
988 select SYS_SUPPORTS_ZBOOT_UART16550
989 help
990 This board is based on Netlogic XLP Processor.
991 Say Y here if you have a XLP based board.
992
993config MIPS_PARAVIRT
994 bool "Para-Virtualized guest system"
995 select CEVT_R4K
996 select CSRC_R4K
997 select SYS_SUPPORTS_64BIT_KERNEL
998 select SYS_SUPPORTS_32BIT_KERNEL
999 select SYS_SUPPORTS_BIG_ENDIAN
1000 select SYS_SUPPORTS_SMP
1001 select NR_CPUS_DEFAULT_4
1002 select SYS_HAS_EARLY_PRINTK
1003 select SYS_HAS_CPU_MIPS32_R2
1004 select SYS_HAS_CPU_MIPS64_R2
1005 select SYS_HAS_CPU_CAVIUM_OCTEON
1006 select HAVE_PCI
1007 select SWAP_IO_SPACE
1008 help
1009 This option supports guest running under ????
1010
1011endchoice
1012
1013source "arch/mips/alchemy/Kconfig"
1014source "arch/mips/ath25/Kconfig"
1015source "arch/mips/ath79/Kconfig"
1016source "arch/mips/bcm47xx/Kconfig"
1017source "arch/mips/bcm63xx/Kconfig"
1018source "arch/mips/bmips/Kconfig"
1019source "arch/mips/generic/Kconfig"
1020source "arch/mips/jazz/Kconfig"
1021source "arch/mips/jz4740/Kconfig"
1022source "arch/mips/lantiq/Kconfig"
1023source "arch/mips/lasat/Kconfig"
1024source "arch/mips/pic32/Kconfig"
1025source "arch/mips/pistachio/Kconfig"
1026source "arch/mips/pmcs-msp71xx/Kconfig"
1027source "arch/mips/ralink/Kconfig"
1028source "arch/mips/sgi-ip27/Kconfig"
1029source "arch/mips/sibyte/Kconfig"
1030source "arch/mips/txx9/Kconfig"
1031source "arch/mips/vr41xx/Kconfig"
1032source "arch/mips/cavium-octeon/Kconfig"
1033source "arch/mips/loongson32/Kconfig"
1034source "arch/mips/loongson64/Kconfig"
1035source "arch/mips/netlogic/Kconfig"
1036source "arch/mips/paravirt/Kconfig"
1037
1038endmenu
1039
1040config RWSEM_GENERIC_SPINLOCK
1041 bool
1042 default y
1043
1044config RWSEM_XCHGADD_ALGORITHM
1045 bool
1046
1047config GENERIC_HWEIGHT
1048 bool
1049 default y
1050
1051config GENERIC_CALIBRATE_DELAY
1052 bool
1053 default y
1054
1055config SCHED_OMIT_FRAME_POINTER
1056 bool
1057 default y
1058
1059#
1060# Select some configuration options automatically based on user selections.
1061#
1062config FW_ARC
1063 bool
1064
1065config ARCH_MAY_HAVE_PC_FDC
1066 bool
1067
1068config BOOT_RAW
1069 bool
1070
1071config CEVT_BCM1480
1072 bool
1073
1074config CEVT_DS1287
1075 bool
1076
1077config CEVT_GT641XX
1078 bool
1079
1080config CEVT_R4K
1081 bool
1082
1083config CEVT_SB1250
1084 bool
1085
1086config CEVT_TXX9
1087 bool
1088
1089config CSRC_BCM1480
1090 bool
1091
1092config CSRC_IOASIC
1093 bool
1094
1095config CSRC_R4K
1096 bool
1097
1098config CSRC_SB1250
1099 bool
1100
1101config MIPS_CLOCK_VSYSCALL
1102 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1103
1104config GPIO_TXX9
1105 select GPIOLIB
1106 bool
1107
1108config FW_CFE
1109 bool
1110
1111config ARCH_SUPPORTS_UPROBES
1112 bool
1113
1114config DMA_MAYBE_COHERENT
1115 select ARCH_HAS_DMA_COHERENCE_H
1116 select DMA_NONCOHERENT
1117 bool
1118
1119config DMA_PERDEV_COHERENT
1120 bool
1121 select DMA_NONCOHERENT
1122
1123config DMA_NONCOHERENT
1124 bool
1125 select ARCH_HAS_DMA_MMAP_PGPROT
1126 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1127 select ARCH_HAS_SYNC_DMA_FOR_CPU
1128 select NEED_DMA_MAP_STATE
1129 select ARCH_HAS_DMA_COHERENT_TO_PFN
1130 select DMA_NONCOHERENT_CACHE_SYNC
1131
1132config SYS_HAS_EARLY_PRINTK
1133 bool
1134
1135config SYS_SUPPORTS_HOTPLUG_CPU
1136 bool
1137
1138config MIPS_BONITO64
1139 bool
1140
1141config MIPS_MSC
1142 bool
1143
1144config MIPS_NILE4
1145 bool
1146
1147config SYNC_R4K
1148 bool
1149
1150config MIPS_MACHINE
1151 def_bool n
1152
1153config NO_IOPORT_MAP
1154 def_bool n
1155
1156config GENERIC_CSUM
1157 bool
1158 default y if !CPU_HAS_LOAD_STORE_LR
1159
1160config GENERIC_ISA_DMA
1161 bool
1162 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1163 select ISA_DMA_API
1164
1165config GENERIC_ISA_DMA_SUPPORT_BROKEN
1166 bool
1167 select GENERIC_ISA_DMA
1168
1169config ISA_DMA_API
1170 bool
1171
1172config HOLES_IN_ZONE
1173 bool
1174
1175config SYS_SUPPORTS_RELOCATABLE
1176 bool
1177 help
1178 Selected if the platform supports relocating the kernel.
1179 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1180 to allow access to command line and entropy sources.
1181
1182config MIPS_CBPF_JIT
1183 def_bool y
1184 depends on BPF_JIT && HAVE_CBPF_JIT
1185
1186config MIPS_EBPF_JIT
1187 def_bool y
1188 depends on BPF_JIT && HAVE_EBPF_JIT
1189
1190
1191#
1192# Endianness selection. Sufficiently obscure so many users don't know what to
1193# answer,so we try hard to limit the available choices. Also the use of a
1194# choice statement should be more obvious to the user.
1195#
1196choice
1197 prompt "Endianness selection"
1198 help
1199 Some MIPS machines can be configured for either little or big endian
1200 byte order. These modes require different kernels and a different
1201 Linux distribution. In general there is one preferred byteorder for a
1202 particular system but some systems are just as commonly used in the
1203 one or the other endianness.
1204
1205config CPU_BIG_ENDIAN
1206 bool "Big endian"
1207 depends on SYS_SUPPORTS_BIG_ENDIAN
1208
1209config CPU_LITTLE_ENDIAN
1210 bool "Little endian"
1211 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1212
1213endchoice
1214
1215config EXPORT_UASM
1216 bool
1217
1218config SYS_SUPPORTS_APM_EMULATION
1219 bool
1220
1221config SYS_SUPPORTS_BIG_ENDIAN
1222 bool
1223
1224config SYS_SUPPORTS_LITTLE_ENDIAN
1225 bool
1226
1227config SYS_SUPPORTS_HUGETLBFS
1228 bool
1229 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1230 default y
1231
1232config MIPS_HUGE_TLB_SUPPORT
1233 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1234
1235config IRQ_CPU_RM7K
1236 bool
1237
1238config IRQ_MSP_SLP
1239 bool
1240
1241config IRQ_MSP_CIC
1242 bool
1243
1244config IRQ_TXX9
1245 bool
1246
1247config IRQ_GT641XX
1248 bool
1249
1250config PCI_GT64XXX_PCI0
1251 bool
1252
1253config NO_EXCEPT_FILL
1254 bool
1255
1256config SOC_EMMA2RH
1257 bool
1258 select CEVT_R4K
1259 select CSRC_R4K
1260 select DMA_NONCOHERENT
1261 select IRQ_MIPS_CPU
1262 select SWAP_IO_SPACE
1263 select SYS_HAS_CPU_R5500
1264 select SYS_SUPPORTS_32BIT_KERNEL
1265 select SYS_SUPPORTS_64BIT_KERNEL
1266 select SYS_SUPPORTS_BIG_ENDIAN
1267
1268config SOC_PNX833X
1269 bool
1270 select CEVT_R4K
1271 select CSRC_R4K
1272 select IRQ_MIPS_CPU
1273 select DMA_NONCOHERENT
1274 select SYS_HAS_CPU_MIPS32_R2
1275 select SYS_SUPPORTS_32BIT_KERNEL
1276 select SYS_SUPPORTS_LITTLE_ENDIAN
1277 select SYS_SUPPORTS_BIG_ENDIAN
1278 select SYS_SUPPORTS_MIPS16
1279 select CPU_MIPSR2_IRQ_VI
1280
1281config SOC_PNX8335
1282 bool
1283 select SOC_PNX833X
1284
1285config MIPS_SPRAM
1286 bool
1287
1288config SWAP_IO_SPACE
1289 bool
1290
1291config SGI_HAS_INDYDOG
1292 bool
1293
1294config SGI_HAS_HAL2
1295 bool
1296
1297config SGI_HAS_SEEQ
1298 bool
1299
1300config SGI_HAS_WD93
1301 bool
1302
1303config SGI_HAS_ZILOG
1304 bool
1305
1306config SGI_HAS_I8042
1307 bool
1308
1309config DEFAULT_SGI_PARTITION
1310 bool
1311
1312config FW_ARC32
1313 bool
1314
1315config FW_SNIPROM
1316 bool
1317
1318config BOOT_ELF32
1319 bool
1320
1321config MIPS_L1_CACHE_SHIFT_4
1322 bool
1323
1324config MIPS_L1_CACHE_SHIFT_5
1325 bool
1326
1327config MIPS_L1_CACHE_SHIFT_6
1328 bool
1329
1330config MIPS_L1_CACHE_SHIFT_7
1331 bool
1332
1333config MIPS_L1_CACHE_SHIFT
1334 int
1335 default "7" if MIPS_L1_CACHE_SHIFT_7
1336 default "6" if MIPS_L1_CACHE_SHIFT_6
1337 default "5" if MIPS_L1_CACHE_SHIFT_5
1338 default "4" if MIPS_L1_CACHE_SHIFT_4
1339 default "5"
1340
1341config HAVE_STD_PC_SERIAL_PORT
1342 bool
1343
1344config ARC_CONSOLE
1345 bool "ARC console support"
1346 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1347
1348config ARC_MEMORY
1349 bool
1350 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1351 default y
1352
1353config ARC_PROMLIB
1354 bool
1355 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1356 default y
1357
1358config FW_ARC64
1359 bool
1360
1361config BOOT_ELF64
1362 bool
1363
1364menu "CPU selection"
1365
1366choice
1367 prompt "CPU type"
1368 default CPU_R4X00
1369
1370config CPU_LOONGSON3
1371 bool "Loongson 3 CPU"
1372 depends on SYS_HAS_CPU_LOONGSON3
1373 select ARCH_HAS_PHYS_TO_DMA
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 select CPU_SUPPORTS_HUGEPAGES
1377 select CPU_HAS_LOAD_STORE_LR
1378 select WEAK_ORDERING
1379 select WEAK_REORDERING_BEYOND_LLSC
1380 select MIPS_PGD_C0_CONTEXT
1381 select MIPS_L1_CACHE_SHIFT_6
1382 select GPIOLIB
1383 select SWIOTLB
1384 help
1385 The Loongson 3 processor implements the MIPS64R2 instruction
1386 set with many extensions.
1387
1388config LOONGSON3_ENHANCEMENT
1389 bool "New Loongson 3 CPU Enhancements"
1390 default n
1391 select CPU_MIPSR2
1392 select CPU_HAS_PREFETCH
1393 depends on CPU_LOONGSON3
1394 help
1395 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1396 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1397 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1398 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1399 Fast TLB refill support, etc.
1400
1401 This option enable those enhancements which are not probed at run
1402 time. If you want a generic kernel to run on all Loongson 3 machines,
1403 please say 'N' here. If you want a high-performance kernel to run on
1404 new Loongson 3 machines only, please say 'Y' here.
1405
1406config CPU_LOONGSON2E
1407 bool "Loongson 2E"
1408 depends on SYS_HAS_CPU_LOONGSON2E
1409 select CPU_LOONGSON2
1410 help
1411 The Loongson 2E processor implements the MIPS III instruction set
1412 with many extensions.
1413
1414 It has an internal FPGA northbridge, which is compatible to
1415 bonito64.
1416
1417config CPU_LOONGSON2F
1418 bool "Loongson 2F"
1419 depends on SYS_HAS_CPU_LOONGSON2F
1420 select CPU_LOONGSON2
1421 select GPIOLIB
1422 help
1423 The Loongson 2F processor implements the MIPS III instruction set
1424 with many extensions.
1425
1426 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1427 have a similar programming interface with FPGA northbridge used in
1428 Loongson2E.
1429
1430config CPU_LOONGSON1B
1431 bool "Loongson 1B"
1432 depends on SYS_HAS_CPU_LOONGSON1B
1433 select CPU_LOONGSON1
1434 select LEDS_GPIO_REGISTER
1435 help
1436 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1437 Release 1 instruction set and part of the MIPS32 Release 2
1438 instruction set.
1439
1440config CPU_LOONGSON1C
1441 bool "Loongson 1C"
1442 depends on SYS_HAS_CPU_LOONGSON1C
1443 select CPU_LOONGSON1
1444 select LEDS_GPIO_REGISTER
1445 help
1446 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1447 Release 1 instruction set and part of the MIPS32 Release 2
1448 instruction set.
1449
1450config CPU_MIPS32_R1
1451 bool "MIPS32 Release 1"
1452 depends on SYS_HAS_CPU_MIPS32_R1
1453 select CPU_HAS_PREFETCH
1454 select CPU_HAS_LOAD_STORE_LR
1455 select CPU_SUPPORTS_32BIT_KERNEL
1456 select CPU_SUPPORTS_HIGHMEM
1457 help
1458 Choose this option to build a kernel for release 1 or later of the
1459 MIPS32 architecture. Most modern embedded systems with a 32-bit
1460 MIPS processor are based on a MIPS32 processor. If you know the
1461 specific type of processor in your system, choose those that one
1462 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1463 Release 2 of the MIPS32 architecture is available since several
1464 years so chances are you even have a MIPS32 Release 2 processor
1465 in which case you should choose CPU_MIPS32_R2 instead for better
1466 performance.
1467
1468config CPU_MIPS32_R2
1469 bool "MIPS32 Release 2"
1470 depends on SYS_HAS_CPU_MIPS32_R2
1471 select CPU_HAS_PREFETCH
1472 select CPU_HAS_LOAD_STORE_LR
1473 select CPU_SUPPORTS_32BIT_KERNEL
1474 select CPU_SUPPORTS_HIGHMEM
1475 select CPU_SUPPORTS_MSA
1476 select HAVE_KVM
1477 help
1478 Choose this option to build a kernel for release 2 or later of the
1479 MIPS32 architecture. Most modern embedded systems with a 32-bit
1480 MIPS processor are based on a MIPS32 processor. If you know the
1481 specific type of processor in your system, choose those that one
1482 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1483
1484config CPU_MIPS32_R6
1485 bool "MIPS32 Release 6"
1486 depends on SYS_HAS_CPU_MIPS32_R6
1487 select CPU_HAS_PREFETCH
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1490 select CPU_SUPPORTS_MSA
1491 select HAVE_KVM
1492 select MIPS_O32_FP64_SUPPORT
1493 help
1494 Choose this option to build a kernel for release 6 or later of the
1495 MIPS32 architecture. New MIPS processors, starting with the Warrior
1496 family, are based on a MIPS32r6 processor. If you own an older
1497 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1498
1499config CPU_MIPS64_R1
1500 bool "MIPS64 Release 1"
1501 depends on SYS_HAS_CPU_MIPS64_R1
1502 select CPU_HAS_PREFETCH
1503 select CPU_HAS_LOAD_STORE_LR
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select CPU_SUPPORTS_64BIT_KERNEL
1506 select CPU_SUPPORTS_HIGHMEM
1507 select CPU_SUPPORTS_HUGEPAGES
1508 help
1509 Choose this option to build a kernel for release 1 or later of the
1510 MIPS64 architecture. Many modern embedded systems with a 64-bit
1511 MIPS processor are based on a MIPS64 processor. If you know the
1512 specific type of processor in your system, choose those that one
1513 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1514 Release 2 of the MIPS64 architecture is available since several
1515 years so chances are you even have a MIPS64 Release 2 processor
1516 in which case you should choose CPU_MIPS64_R2 instead for better
1517 performance.
1518
1519config CPU_MIPS64_R2
1520 bool "MIPS64 Release 2"
1521 depends on SYS_HAS_CPU_MIPS64_R2
1522 select CPU_HAS_PREFETCH
1523 select CPU_HAS_LOAD_STORE_LR
1524 select CPU_SUPPORTS_32BIT_KERNEL
1525 select CPU_SUPPORTS_64BIT_KERNEL
1526 select CPU_SUPPORTS_HIGHMEM
1527 select CPU_SUPPORTS_HUGEPAGES
1528 select CPU_SUPPORTS_MSA
1529 select HAVE_KVM
1530 help
1531 Choose this option to build a kernel for release 2 or later of the
1532 MIPS64 architecture. Many modern embedded systems with a 64-bit
1533 MIPS processor are based on a MIPS64 processor. If you know the
1534 specific type of processor in your system, choose those that one
1535 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1536
1537config CPU_MIPS64_R6
1538 bool "MIPS64 Release 6"
1539 depends on SYS_HAS_CPU_MIPS64_R6
1540 select CPU_HAS_PREFETCH
1541 select CPU_SUPPORTS_32BIT_KERNEL
1542 select CPU_SUPPORTS_64BIT_KERNEL
1543 select CPU_SUPPORTS_HIGHMEM
1544 select CPU_SUPPORTS_MSA
1545 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1546 select HAVE_KVM
1547 help
1548 Choose this option to build a kernel for release 6 or later of the
1549 MIPS64 architecture. New MIPS processors, starting with the Warrior
1550 family, are based on a MIPS64r6 processor. If you own an older
1551 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1552
1553config CPU_R3000
1554 bool "R3000"
1555 depends on SYS_HAS_CPU_R3000
1556 select CPU_HAS_WB
1557 select CPU_HAS_LOAD_STORE_LR
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select CPU_SUPPORTS_HIGHMEM
1560 help
1561 Please make sure to pick the right CPU type. Linux/MIPS is not
1562 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1563 *not* work on R4000 machines and vice versa. However, since most
1564 of the supported machines have an R4000 (or similar) CPU, R4x00
1565 might be a safe bet. If the resulting kernel does not work,
1566 try to recompile with R3000.
1567
1568config CPU_TX39XX
1569 bool "R39XX"
1570 depends on SYS_HAS_CPU_TX39XX
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_HAS_LOAD_STORE_LR
1573
1574config CPU_VR41XX
1575 bool "R41xx"
1576 depends on SYS_HAS_CPU_VR41XX
1577 select CPU_SUPPORTS_32BIT_KERNEL
1578 select CPU_SUPPORTS_64BIT_KERNEL
1579 select CPU_HAS_LOAD_STORE_LR
1580 help
1581 The options selects support for the NEC VR4100 series of processors.
1582 Only choose this option if you have one of these processors as a
1583 kernel built with this option will not run on any other type of
1584 processor or vice versa.
1585
1586config CPU_R4300
1587 bool "R4300"
1588 depends on SYS_HAS_CPU_R4300
1589 select CPU_SUPPORTS_32BIT_KERNEL
1590 select CPU_SUPPORTS_64BIT_KERNEL
1591 select CPU_HAS_LOAD_STORE_LR
1592 help
1593 MIPS Technologies R4300-series processors.
1594
1595config CPU_R4X00
1596 bool "R4x00"
1597 depends on SYS_HAS_CPU_R4X00
1598 select CPU_SUPPORTS_32BIT_KERNEL
1599 select CPU_SUPPORTS_64BIT_KERNEL
1600 select CPU_SUPPORTS_HUGEPAGES
1601 select CPU_HAS_LOAD_STORE_LR
1602 help
1603 MIPS Technologies R4000-series processors other than 4300, including
1604 the R4000, R4400, R4600, and 4700.
1605
1606config CPU_TX49XX
1607 bool "R49XX"
1608 depends on SYS_HAS_CPU_TX49XX
1609 select CPU_HAS_PREFETCH
1610 select CPU_HAS_LOAD_STORE_LR
1611 select CPU_SUPPORTS_32BIT_KERNEL
1612 select CPU_SUPPORTS_64BIT_KERNEL
1613 select CPU_SUPPORTS_HUGEPAGES
1614
1615config CPU_R5000
1616 bool "R5000"
1617 depends on SYS_HAS_CPU_R5000
1618 select CPU_SUPPORTS_32BIT_KERNEL
1619 select CPU_SUPPORTS_64BIT_KERNEL
1620 select CPU_SUPPORTS_HUGEPAGES
1621 select CPU_HAS_LOAD_STORE_LR
1622 help
1623 MIPS Technologies R5000-series processors other than the Nevada.
1624
1625config CPU_R5432
1626 bool "R5432"
1627 depends on SYS_HAS_CPU_R5432
1628 select CPU_SUPPORTS_32BIT_KERNEL
1629 select CPU_SUPPORTS_64BIT_KERNEL
1630 select CPU_SUPPORTS_HUGEPAGES
1631 select CPU_HAS_LOAD_STORE_LR
1632
1633config CPU_R5500
1634 bool "R5500"
1635 depends on SYS_HAS_CPU_R5500
1636 select CPU_SUPPORTS_32BIT_KERNEL
1637 select CPU_SUPPORTS_64BIT_KERNEL
1638 select CPU_SUPPORTS_HUGEPAGES
1639 select CPU_HAS_LOAD_STORE_LR
1640 help
1641 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1642 instruction set.
1643
1644config CPU_NEVADA
1645 bool "RM52xx"
1646 depends on SYS_HAS_CPU_NEVADA
1647 select CPU_SUPPORTS_32BIT_KERNEL
1648 select CPU_SUPPORTS_64BIT_KERNEL
1649 select CPU_SUPPORTS_HUGEPAGES
1650 select CPU_HAS_LOAD_STORE_LR
1651 help
1652 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1653
1654config CPU_R8000
1655 bool "R8000"
1656 depends on SYS_HAS_CPU_R8000
1657 select CPU_HAS_PREFETCH
1658 select CPU_HAS_LOAD_STORE_LR
1659 select CPU_SUPPORTS_64BIT_KERNEL
1660 help
1661 MIPS Technologies R8000 processors. Note these processors are
1662 uncommon and the support for them is incomplete.
1663
1664config CPU_R10000
1665 bool "R10000"
1666 depends on SYS_HAS_CPU_R10000
1667 select CPU_HAS_PREFETCH
1668 select CPU_HAS_LOAD_STORE_LR
1669 select CPU_SUPPORTS_32BIT_KERNEL
1670 select CPU_SUPPORTS_64BIT_KERNEL
1671 select CPU_SUPPORTS_HIGHMEM
1672 select CPU_SUPPORTS_HUGEPAGES
1673 help
1674 MIPS Technologies R10000-series processors.
1675
1676config CPU_RM7000
1677 bool "RM7000"
1678 depends on SYS_HAS_CPU_RM7000
1679 select CPU_HAS_PREFETCH
1680 select CPU_HAS_LOAD_STORE_LR
1681 select CPU_SUPPORTS_32BIT_KERNEL
1682 select CPU_SUPPORTS_64BIT_KERNEL
1683 select CPU_SUPPORTS_HIGHMEM
1684 select CPU_SUPPORTS_HUGEPAGES
1685
1686config CPU_SB1
1687 bool "SB1"
1688 depends on SYS_HAS_CPU_SB1
1689 select CPU_HAS_LOAD_STORE_LR
1690 select CPU_SUPPORTS_32BIT_KERNEL
1691 select CPU_SUPPORTS_64BIT_KERNEL
1692 select CPU_SUPPORTS_HIGHMEM
1693 select CPU_SUPPORTS_HUGEPAGES
1694 select WEAK_ORDERING
1695
1696config CPU_CAVIUM_OCTEON
1697 bool "Cavium Octeon processor"
1698 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1699 select CPU_HAS_PREFETCH
1700 select CPU_HAS_LOAD_STORE_LR
1701 select CPU_SUPPORTS_64BIT_KERNEL
1702 select WEAK_ORDERING
1703 select CPU_SUPPORTS_HIGHMEM
1704 select CPU_SUPPORTS_HUGEPAGES
1705 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1706 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1707 select MIPS_L1_CACHE_SHIFT_7
1708 select HAVE_KVM
1709 help
1710 The Cavium Octeon processor is a highly integrated chip containing
1711 many ethernet hardware widgets for networking tasks. The processor
1712 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1713 Full details can be found at http://www.caviumnetworks.com.
1714
1715config CPU_BMIPS
1716 bool "Broadcom BMIPS"
1717 depends on SYS_HAS_CPU_BMIPS
1718 select CPU_MIPS32
1719 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1720 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1721 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1722 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1723 select CPU_SUPPORTS_32BIT_KERNEL
1724 select DMA_NONCOHERENT
1725 select IRQ_MIPS_CPU
1726 select SWAP_IO_SPACE
1727 select WEAK_ORDERING
1728 select CPU_SUPPORTS_HIGHMEM
1729 select CPU_HAS_PREFETCH
1730 select CPU_HAS_LOAD_STORE_LR
1731 select CPU_SUPPORTS_CPUFREQ
1732 select MIPS_EXTERNAL_TIMER
1733 help
1734 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1735
1736config CPU_XLR
1737 bool "Netlogic XLR SoC"
1738 depends on SYS_HAS_CPU_XLR
1739 select CPU_HAS_LOAD_STORE_LR
1740 select CPU_SUPPORTS_32BIT_KERNEL
1741 select CPU_SUPPORTS_64BIT_KERNEL
1742 select CPU_SUPPORTS_HIGHMEM
1743 select CPU_SUPPORTS_HUGEPAGES
1744 select WEAK_ORDERING
1745 select WEAK_REORDERING_BEYOND_LLSC
1746 help
1747 Netlogic Microsystems XLR/XLS processors.
1748
1749config CPU_XLP
1750 bool "Netlogic XLP SoC"
1751 depends on SYS_HAS_CPU_XLP
1752 select CPU_SUPPORTS_32BIT_KERNEL
1753 select CPU_SUPPORTS_64BIT_KERNEL
1754 select CPU_SUPPORTS_HIGHMEM
1755 select WEAK_ORDERING
1756 select WEAK_REORDERING_BEYOND_LLSC
1757 select CPU_HAS_PREFETCH
1758 select CPU_HAS_LOAD_STORE_LR
1759 select CPU_MIPSR2
1760 select CPU_SUPPORTS_HUGEPAGES
1761 select MIPS_ASID_BITS_VARIABLE
1762 help
1763 Netlogic Microsystems XLP processors.
1764endchoice
1765
1766config CPU_MIPS32_3_5_FEATURES
1767 bool "MIPS32 Release 3.5 Features"
1768 depends on SYS_HAS_CPU_MIPS32_R3_5
1769 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1770 help
1771 Choose this option to build a kernel for release 2 or later of the
1772 MIPS32 architecture including features from the 3.5 release such as
1773 support for Enhanced Virtual Addressing (EVA).
1774
1775config CPU_MIPS32_3_5_EVA
1776 bool "Enhanced Virtual Addressing (EVA)"
1777 depends on CPU_MIPS32_3_5_FEATURES
1778 select EVA
1779 default y
1780 help
1781 Choose this option if you want to enable the Enhanced Virtual
1782 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1783 One of its primary benefits is an increase in the maximum size
1784 of lowmem (up to 3GB). If unsure, say 'N' here.
1785
1786config CPU_MIPS32_R5_FEATURES
1787 bool "MIPS32 Release 5 Features"
1788 depends on SYS_HAS_CPU_MIPS32_R5
1789 depends on CPU_MIPS32_R2
1790 help
1791 Choose this option to build a kernel for release 2 or later of the
1792 MIPS32 architecture including features from release 5 such as
1793 support for Extended Physical Addressing (XPA).
1794
1795config CPU_MIPS32_R5_XPA
1796 bool "Extended Physical Addressing (XPA)"
1797 depends on CPU_MIPS32_R5_FEATURES
1798 depends on !EVA
1799 depends on !PAGE_SIZE_4KB
1800 depends on SYS_SUPPORTS_HIGHMEM
1801 select XPA
1802 select HIGHMEM
1803 select PHYS_ADDR_T_64BIT
1804 default n
1805 help
1806 Choose this option if you want to enable the Extended Physical
1807 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1808 benefit is to increase physical addressing equal to or greater
1809 than 40 bits. Note that this has the side effect of turning on
1810 64-bit addressing which in turn makes the PTEs 64-bit in size.
1811 If unsure, say 'N' here.
1812
1813if CPU_LOONGSON2F
1814config CPU_NOP_WORKAROUNDS
1815 bool
1816
1817config CPU_JUMP_WORKAROUNDS
1818 bool
1819
1820config CPU_LOONGSON2F_WORKAROUNDS
1821 bool "Loongson 2F Workarounds"
1822 default y
1823 select CPU_NOP_WORKAROUNDS
1824 select CPU_JUMP_WORKAROUNDS
1825 help
1826 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1827 require workarounds. Without workarounds the system may hang
1828 unexpectedly. For more information please refer to the gas
1829 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1830
1831 Loongson 2F03 and later have fixed these issues and no workarounds
1832 are needed. The workarounds have no significant side effect on them
1833 but may decrease the performance of the system so this option should
1834 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1835 systems.
1836
1837 If unsure, please say Y.
1838endif # CPU_LOONGSON2F
1839
1840config SYS_SUPPORTS_ZBOOT
1841 bool
1842 select HAVE_KERNEL_GZIP
1843 select HAVE_KERNEL_BZIP2
1844 select HAVE_KERNEL_LZ4
1845 select HAVE_KERNEL_LZMA
1846 select HAVE_KERNEL_LZO
1847 select HAVE_KERNEL_XZ
1848
1849config SYS_SUPPORTS_ZBOOT_UART16550
1850 bool
1851 select SYS_SUPPORTS_ZBOOT
1852
1853config SYS_SUPPORTS_ZBOOT_UART_PROM
1854 bool
1855 select SYS_SUPPORTS_ZBOOT
1856
1857config CPU_LOONGSON2
1858 bool
1859 select CPU_SUPPORTS_32BIT_KERNEL
1860 select CPU_SUPPORTS_64BIT_KERNEL
1861 select CPU_SUPPORTS_HIGHMEM
1862 select CPU_SUPPORTS_HUGEPAGES
1863 select ARCH_HAS_PHYS_TO_DMA
1864 select CPU_HAS_LOAD_STORE_LR
1865
1866config CPU_LOONGSON1
1867 bool
1868 select CPU_MIPS32
1869 select CPU_MIPSR1
1870 select CPU_HAS_PREFETCH
1871 select CPU_HAS_LOAD_STORE_LR
1872 select CPU_SUPPORTS_32BIT_KERNEL
1873 select CPU_SUPPORTS_HIGHMEM
1874 select CPU_SUPPORTS_CPUFREQ
1875
1876config CPU_BMIPS32_3300
1877 select SMP_UP if SMP
1878 bool
1879
1880config CPU_BMIPS4350
1881 bool
1882 select SYS_SUPPORTS_SMP
1883 select SYS_SUPPORTS_HOTPLUG_CPU
1884
1885config CPU_BMIPS4380
1886 bool
1887 select MIPS_L1_CACHE_SHIFT_6
1888 select SYS_SUPPORTS_SMP
1889 select SYS_SUPPORTS_HOTPLUG_CPU
1890 select CPU_HAS_RIXI
1891
1892config CPU_BMIPS5000
1893 bool
1894 select MIPS_CPU_SCACHE
1895 select MIPS_L1_CACHE_SHIFT_7
1896 select SYS_SUPPORTS_SMP
1897 select SYS_SUPPORTS_HOTPLUG_CPU
1898 select CPU_HAS_RIXI
1899
1900config SYS_HAS_CPU_LOONGSON3
1901 bool
1902 select CPU_SUPPORTS_CPUFREQ
1903 select CPU_HAS_RIXI
1904
1905config SYS_HAS_CPU_LOONGSON2E
1906 bool
1907
1908config SYS_HAS_CPU_LOONGSON2F
1909 bool
1910 select CPU_SUPPORTS_CPUFREQ
1911 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1912 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1913
1914config SYS_HAS_CPU_LOONGSON1B
1915 bool
1916
1917config SYS_HAS_CPU_LOONGSON1C
1918 bool
1919
1920config SYS_HAS_CPU_MIPS32_R1
1921 bool
1922
1923config SYS_HAS_CPU_MIPS32_R2
1924 bool
1925
1926config SYS_HAS_CPU_MIPS32_R3_5
1927 bool
1928
1929config SYS_HAS_CPU_MIPS32_R5
1930 bool
1931
1932config SYS_HAS_CPU_MIPS32_R6
1933 bool
1934
1935config SYS_HAS_CPU_MIPS64_R1
1936 bool
1937
1938config SYS_HAS_CPU_MIPS64_R2
1939 bool
1940
1941config SYS_HAS_CPU_MIPS64_R6
1942 bool
1943
1944config SYS_HAS_CPU_R3000
1945 bool
1946
1947config SYS_HAS_CPU_TX39XX
1948 bool
1949
1950config SYS_HAS_CPU_VR41XX
1951 bool
1952
1953config SYS_HAS_CPU_R4300
1954 bool
1955
1956config SYS_HAS_CPU_R4X00
1957 bool
1958
1959config SYS_HAS_CPU_TX49XX
1960 bool
1961
1962config SYS_HAS_CPU_R5000
1963 bool
1964
1965config SYS_HAS_CPU_R5432
1966 bool
1967
1968config SYS_HAS_CPU_R5500
1969 bool
1970
1971config SYS_HAS_CPU_NEVADA
1972 bool
1973
1974config SYS_HAS_CPU_R8000
1975 bool
1976
1977config SYS_HAS_CPU_R10000
1978 bool
1979
1980config SYS_HAS_CPU_RM7000
1981 bool
1982
1983config SYS_HAS_CPU_SB1
1984 bool
1985
1986config SYS_HAS_CPU_CAVIUM_OCTEON
1987 bool
1988
1989config SYS_HAS_CPU_BMIPS
1990 bool
1991
1992config SYS_HAS_CPU_BMIPS32_3300
1993 bool
1994 select SYS_HAS_CPU_BMIPS
1995
1996config SYS_HAS_CPU_BMIPS4350
1997 bool
1998 select SYS_HAS_CPU_BMIPS
1999
2000config SYS_HAS_CPU_BMIPS4380
2001 bool
2002 select SYS_HAS_CPU_BMIPS
2003
2004config SYS_HAS_CPU_BMIPS5000
2005 bool
2006 select SYS_HAS_CPU_BMIPS
2007
2008config SYS_HAS_CPU_XLR
2009 bool
2010
2011config SYS_HAS_CPU_XLP
2012 bool
2013
2014#
2015# CPU may reorder R->R, R->W, W->R, W->W
2016# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2017#
2018config WEAK_ORDERING
2019 bool
2020
2021#
2022# CPU may reorder reads and writes beyond LL/SC
2023# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2024#
2025config WEAK_REORDERING_BEYOND_LLSC
2026 bool
2027endmenu
2028
2029#
2030# These two indicate any level of the MIPS32 and MIPS64 architecture
2031#
2032config CPU_MIPS32
2033 bool
2034 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2035
2036config CPU_MIPS64
2037 bool
2038 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2039
2040#
2041# These indicate the revision of the architecture
2042#
2043config CPU_MIPSR1
2044 bool
2045 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2046
2047config CPU_MIPSR2
2048 bool
2049 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2050 select CPU_HAS_RIXI
2051 select MIPS_SPRAM
2052
2053config CPU_MIPSR6
2054 bool
2055 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2056 select CPU_HAS_RIXI
2057 select HAVE_ARCH_BITREVERSE
2058 select MIPS_ASID_BITS_VARIABLE
2059 select MIPS_CRC_SUPPORT
2060 select MIPS_SPRAM
2061
2062config TARGET_ISA_REV
2063 int
2064 default 1 if CPU_MIPSR1
2065 default 2 if CPU_MIPSR2
2066 default 6 if CPU_MIPSR6
2067 default 0
2068 help
2069 Reflects the ISA revision being targeted by the kernel build. This
2070 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2071
2072config EVA
2073 bool
2074
2075config XPA
2076 bool
2077
2078config SYS_SUPPORTS_32BIT_KERNEL
2079 bool
2080config SYS_SUPPORTS_64BIT_KERNEL
2081 bool
2082config CPU_SUPPORTS_32BIT_KERNEL
2083 bool
2084config CPU_SUPPORTS_64BIT_KERNEL
2085 bool
2086config CPU_SUPPORTS_CPUFREQ
2087 bool
2088config CPU_SUPPORTS_ADDRWINCFG
2089 bool
2090config CPU_SUPPORTS_HUGEPAGES
2091 bool
2092config CPU_SUPPORTS_UNCACHED_ACCELERATED
2093 bool
2094config MIPS_PGD_C0_CONTEXT
2095 bool
2096 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097
2098#
2099# Set to y for ptrace access to watch registers.
2100#
2101config HARDWARE_WATCHPOINTS
2102 bool
2103 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104
2105menu "Kernel type"
2106
2107choice
2108 prompt "Kernel code model"
2109 help
2110 You should only select this option if you have a workload that
2111 actually benefits from 64-bit processing or if your machine has
2112 large memory. You will only be presented a single option in this
2113 menu if your system does not support both 32-bit and 64-bit kernels.
2114
2115config 32BIT
2116 bool "32-bit kernel"
2117 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118 select TRAD_SIGNALS
2119 help
2120 Select this option if you want to build a 32-bit kernel.
2121
2122config 64BIT
2123 bool "64-bit kernel"
2124 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2125 help
2126 Select this option if you want to build a 64-bit kernel.
2127
2128endchoice
2129
2130config KVM_GUEST
2131 bool "KVM Guest Kernel"
2132 depends on BROKEN_ON_SMP
2133 help
2134 Select this option if building a guest kernel for KVM (Trap & Emulate)
2135 mode.
2136
2137config KVM_GUEST_TIMER_FREQ
2138 int "Count/Compare Timer Frequency (MHz)"
2139 depends on KVM_GUEST
2140 default 100
2141 help
2142 Set this to non-zero if building a guest kernel for KVM to skip RTC
2143 emulation when determining guest CPU Frequency. Instead, the guest's
2144 timer frequency is specified directly.
2145
2146config MIPS_VA_BITS_48
2147 bool "48 bits virtual memory"
2148 depends on 64BIT
2149 help
2150 Support a maximum at least 48 bits of application virtual
2151 memory. Default is 40 bits or less, depending on the CPU.
2152 For page sizes 16k and above, this option results in a small
2153 memory overhead for page tables. For 4k page size, a fourth
2154 level of page tables is added which imposes both a memory
2155 overhead as well as slower TLB fault handling.
2156
2157 If unsure, say N.
2158
2159choice
2160 prompt "Kernel page size"
2161 default PAGE_SIZE_4KB
2162
2163config PAGE_SIZE_4KB
2164 bool "4kB"
2165 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2166 help
2167 This option select the standard 4kB Linux page size. On some
2168 R3000-family processors this is the only available page size. Using
2169 4kB page size will minimize memory consumption and is therefore
2170 recommended for low memory systems.
2171
2172config PAGE_SIZE_8KB
2173 bool "8kB"
2174 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2175 depends on !MIPS_VA_BITS_48
2176 help
2177 Using 8kB page size will result in higher performance kernel at
2178 the price of higher memory consumption. This option is available
2179 only on R8000 and cnMIPS processors. Note that you will need a
2180 suitable Linux distribution to support this.
2181
2182config PAGE_SIZE_16KB
2183 bool "16kB"
2184 depends on !CPU_R3000 && !CPU_TX39XX
2185 help
2186 Using 16kB page size will result in higher performance kernel at
2187 the price of higher memory consumption. This option is available on
2188 all non-R3000 family processors. Note that you will need a suitable
2189 Linux distribution to support this.
2190
2191config PAGE_SIZE_32KB
2192 bool "32kB"
2193 depends on CPU_CAVIUM_OCTEON
2194 depends on !MIPS_VA_BITS_48
2195 help
2196 Using 32kB page size will result in higher performance kernel at
2197 the price of higher memory consumption. This option is available
2198 only on cnMIPS cores. Note that you will need a suitable Linux
2199 distribution to support this.
2200
2201config PAGE_SIZE_64KB
2202 bool "64kB"
2203 depends on !CPU_R3000 && !CPU_TX39XX
2204 help
2205 Using 64kB page size will result in higher performance kernel at
2206 the price of higher memory consumption. This option is available on
2207 all non-R3000 family processor. Not that at the time of this
2208 writing this option is still high experimental.
2209
2210endchoice
2211
2212config FORCE_MAX_ZONEORDER
2213 int "Maximum zone order"
2214 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2215 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2217 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2219 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220 range 11 64
2221 default "11"
2222 help
2223 The kernel memory allocator divides physically contiguous memory
2224 blocks into "zones", where each zone is a power of two number of
2225 pages. This option selects the largest power of two that the kernel
2226 keeps in the memory allocator. If you need to allocate very large
2227 blocks of physically contiguous memory, then you may need to
2228 increase this value.
2229
2230 This config option is actually maximum order plus one. For example,
2231 a value of 11 means that the largest free memory block is 2^10 pages.
2232
2233 The page size is not necessarily 4KB. Keep this in mind
2234 when choosing a value for this option.
2235
2236config BOARD_SCACHE
2237 bool
2238
2239config IP22_CPU_SCACHE
2240 bool
2241 select BOARD_SCACHE
2242
2243#
2244# Support for a MIPS32 / MIPS64 style S-caches
2245#
2246config MIPS_CPU_SCACHE
2247 bool
2248 select BOARD_SCACHE
2249
2250config R5000_CPU_SCACHE
2251 bool
2252 select BOARD_SCACHE
2253
2254config RM7000_CPU_SCACHE
2255 bool
2256 select BOARD_SCACHE
2257
2258config SIBYTE_DMA_PAGEOPS
2259 bool "Use DMA to clear/copy pages"
2260 depends on CPU_SB1
2261 help
2262 Instead of using the CPU to zero and copy pages, use a Data Mover
2263 channel. These DMA channels are otherwise unused by the standard
2264 SiByte Linux port. Seems to give a small performance benefit.
2265
2266config CPU_HAS_PREFETCH
2267 bool
2268
2269config CPU_GENERIC_DUMP_TLB
2270 bool
2271 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2272
2273config MIPS_FP_SUPPORT
2274 bool "Floating Point support" if EXPERT
2275 default y
2276 help
2277 Select y to include support for floating point in the kernel
2278 including initialization of FPU hardware, FP context save & restore
2279 and emulation of an FPU where necessary. Without this support any
2280 userland program attempting to use floating point instructions will
2281 receive a SIGILL.
2282
2283 If you know that your userland will not attempt to use floating point
2284 instructions then you can say n here to shrink the kernel a little.
2285
2286 If unsure, say y.
2287
2288config CPU_R2300_FPU
2289 bool
2290 depends on MIPS_FP_SUPPORT
2291 default y if CPU_R3000 || CPU_TX39XX
2292
2293config CPU_R4K_FPU
2294 bool
2295 depends on MIPS_FP_SUPPORT
2296 default y if !CPU_R2300_FPU
2297
2298config CPU_R4K_CACHE_TLB
2299 bool
2300 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2301
2302config MIPS_MT_SMP
2303 bool "MIPS MT SMP support (1 TC on each available VPE)"
2304 default y
2305 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2306 select CPU_MIPSR2_IRQ_VI
2307 select CPU_MIPSR2_IRQ_EI
2308 select SYNC_R4K
2309 select MIPS_MT
2310 select SMP
2311 select SMP_UP
2312 select SYS_SUPPORTS_SMP
2313 select SYS_SUPPORTS_SCHED_SMT
2314 select MIPS_PERF_SHARED_TC_COUNTERS
2315 help
2316 This is a kernel model which is known as SMVP. This is supported
2317 on cores with the MT ASE and uses the available VPEs to implement
2318 virtual processors which supports SMP. This is equivalent to the
2319 Intel Hyperthreading feature. For further information go to
2320 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2321
2322config MIPS_MT
2323 bool
2324
2325config SCHED_SMT
2326 bool "SMT (multithreading) scheduler support"
2327 depends on SYS_SUPPORTS_SCHED_SMT
2328 default n
2329 help
2330 SMT scheduler support improves the CPU scheduler's decision making
2331 when dealing with MIPS MT enabled cores at a cost of slightly
2332 increased overhead in some places. If unsure say N here.
2333
2334config SYS_SUPPORTS_SCHED_SMT
2335 bool
2336
2337config SYS_SUPPORTS_MULTITHREADING
2338 bool
2339
2340config MIPS_MT_FPAFF
2341 bool "Dynamic FPU affinity for FP-intensive threads"
2342 default y
2343 depends on MIPS_MT_SMP
2344
2345config MIPSR2_TO_R6_EMULATOR
2346 bool "MIPS R2-to-R6 emulator"
2347 depends on CPU_MIPSR6
2348 depends on MIPS_FP_SUPPORT
2349 default y
2350 help
2351 Choose this option if you want to run non-R6 MIPS userland code.
2352 Even if you say 'Y' here, the emulator will still be disabled by
2353 default. You can enable it using the 'mipsr2emu' kernel option.
2354 The only reason this is a build-time option is to save ~14K from the
2355 final kernel image.
2356
2357config SYS_SUPPORTS_VPE_LOADER
2358 bool
2359 depends on SYS_SUPPORTS_MULTITHREADING
2360 help
2361 Indicates that the platform supports the VPE loader, and provides
2362 physical_memsize.
2363
2364config MIPS_VPE_LOADER
2365 bool "VPE loader support."
2366 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2367 select CPU_MIPSR2_IRQ_VI
2368 select CPU_MIPSR2_IRQ_EI
2369 select MIPS_MT
2370 help
2371 Includes a loader for loading an elf relocatable object
2372 onto another VPE and running it.
2373
2374config MIPS_VPE_LOADER_CMP
2375 bool
2376 default "y"
2377 depends on MIPS_VPE_LOADER && MIPS_CMP
2378
2379config MIPS_VPE_LOADER_MT
2380 bool
2381 default "y"
2382 depends on MIPS_VPE_LOADER && !MIPS_CMP
2383
2384config MIPS_VPE_LOADER_TOM
2385 bool "Load VPE program into memory hidden from linux"
2386 depends on MIPS_VPE_LOADER
2387 default y
2388 help
2389 The loader can use memory that is present but has been hidden from
2390 Linux using the kernel command line option "mem=xxMB". It's up to
2391 you to ensure the amount you put in the option and the space your
2392 program requires is less or equal to the amount physically present.
2393
2394config MIPS_VPE_APSP_API
2395 bool "Enable support for AP/SP API (RTLX)"
2396 depends on MIPS_VPE_LOADER
2397
2398config MIPS_VPE_APSP_API_CMP
2399 bool
2400 default "y"
2401 depends on MIPS_VPE_APSP_API && MIPS_CMP
2402
2403config MIPS_VPE_APSP_API_MT
2404 bool
2405 default "y"
2406 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2407
2408config MIPS_CMP
2409 bool "MIPS CMP framework support (DEPRECATED)"
2410 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2411 select SMP
2412 select SYNC_R4K
2413 select SYS_SUPPORTS_SMP
2414 select WEAK_ORDERING
2415 default n
2416 help
2417 Select this if you are using a bootloader which implements the "CMP
2418 framework" protocol (ie. YAMON) and want your kernel to make use of
2419 its ability to start secondary CPUs.
2420
2421 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2422 instead of this.
2423
2424config MIPS_CPS
2425 bool "MIPS Coherent Processing System support"
2426 depends on SYS_SUPPORTS_MIPS_CPS
2427 select MIPS_CM
2428 select MIPS_CPS_PM if HOTPLUG_CPU
2429 select SMP
2430 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2431 select SYS_SUPPORTS_HOTPLUG_CPU
2432 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2433 select SYS_SUPPORTS_SMP
2434 select WEAK_ORDERING
2435 help
2436 Select this if you wish to run an SMP kernel across multiple cores
2437 within a MIPS Coherent Processing System. When this option is
2438 enabled the kernel will probe for other cores and boot them with
2439 no external assistance. It is safe to enable this when hardware
2440 support is unavailable.
2441
2442config MIPS_CPS_PM
2443 depends on MIPS_CPS
2444 bool
2445
2446config MIPS_CM
2447 bool
2448 select MIPS_CPC
2449
2450config MIPS_CPC
2451 bool
2452
2453config SB1_PASS_2_WORKAROUNDS
2454 bool
2455 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2456 default y
2457
2458config SB1_PASS_2_1_WORKAROUNDS
2459 bool
2460 depends on CPU_SB1 && CPU_SB1_PASS_2
2461 default y
2462
2463
2464choice
2465 prompt "SmartMIPS or microMIPS ASE support"
2466
2467config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2468 bool "None"
2469 help
2470 Select this if you want neither microMIPS nor SmartMIPS support
2471
2472config CPU_HAS_SMARTMIPS
2473 depends on SYS_SUPPORTS_SMARTMIPS
2474 bool "SmartMIPS"
2475 help
2476 SmartMIPS is a extension of the MIPS32 architecture aimed at
2477 increased security at both hardware and software level for
2478 smartcards. Enabling this option will allow proper use of the
2479 SmartMIPS instructions by Linux applications. However a kernel with
2480 this option will not work on a MIPS core without SmartMIPS core. If
2481 you don't know you probably don't have SmartMIPS and should say N
2482 here.
2483
2484config CPU_MICROMIPS
2485 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2486 bool "microMIPS"
2487 help
2488 When this option is enabled the kernel will be built using the
2489 microMIPS ISA
2490
2491endchoice
2492
2493config CPU_HAS_MSA
2494 bool "Support for the MIPS SIMD Architecture"
2495 depends on CPU_SUPPORTS_MSA
2496 depends on MIPS_FP_SUPPORT
2497 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2498 help
2499 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2500 and a set of SIMD instructions to operate on them. When this option
2501 is enabled the kernel will support allocating & switching MSA
2502 vector register contexts. If you know that your kernel will only be
2503 running on CPUs which do not support MSA or that your userland will
2504 not be making use of it then you may wish to say N here to reduce
2505 the size & complexity of your kernel.
2506
2507 If unsure, say Y.
2508
2509config CPU_HAS_WB
2510 bool
2511
2512config XKS01
2513 bool
2514
2515config CPU_HAS_RIXI
2516 bool
2517
2518config CPU_HAS_LOAD_STORE_LR
2519 bool
2520 help
2521 CPU has support for unaligned load and store instructions:
2522 LWL, LWR, SWL, SWR (Load/store word left/right).
2523 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2524
2525#
2526# Vectored interrupt mode is an R2 feature
2527#
2528config CPU_MIPSR2_IRQ_VI
2529 bool
2530
2531#
2532# Extended interrupt mode is an R2 feature
2533#
2534config CPU_MIPSR2_IRQ_EI
2535 bool
2536
2537config CPU_HAS_SYNC
2538 bool
2539 depends on !CPU_R3000
2540 default y
2541
2542#
2543# CPU non-features
2544#
2545config CPU_DADDI_WORKAROUNDS
2546 bool
2547
2548config CPU_R4000_WORKAROUNDS
2549 bool
2550 select CPU_R4400_WORKAROUNDS
2551
2552config CPU_R4400_WORKAROUNDS
2553 bool
2554
2555config MIPS_ASID_SHIFT
2556 int
2557 default 6 if CPU_R3000 || CPU_TX39XX
2558 default 4 if CPU_R8000
2559 default 0
2560
2561config MIPS_ASID_BITS
2562 int
2563 default 0 if MIPS_ASID_BITS_VARIABLE
2564 default 6 if CPU_R3000 || CPU_TX39XX
2565 default 8
2566
2567config MIPS_ASID_BITS_VARIABLE
2568 bool
2569
2570config MIPS_CRC_SUPPORT
2571 bool
2572
2573#
2574# - Highmem only makes sense for the 32-bit kernel.
2575# - The current highmem code will only work properly on physically indexed
2576# caches such as R3000, SB1, R7000 or those that look like they're virtually
2577# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2578# moment we protect the user and offer the highmem option only on machines
2579# where it's known to be safe. This will not offer highmem on a few systems
2580# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2581# indexed CPUs but we're playing safe.
2582# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2583# know they might have memory configurations that could make use of highmem
2584# support.
2585#
2586config HIGHMEM
2587 bool "High Memory Support"
2588 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2589
2590config CPU_SUPPORTS_HIGHMEM
2591 bool
2592
2593config SYS_SUPPORTS_HIGHMEM
2594 bool
2595
2596config SYS_SUPPORTS_SMARTMIPS
2597 bool
2598
2599config SYS_SUPPORTS_MICROMIPS
2600 bool
2601
2602config SYS_SUPPORTS_MIPS16
2603 bool
2604 help
2605 This option must be set if a kernel might be executed on a MIPS16-
2606 enabled CPU even if MIPS16 is not actually being used. In other
2607 words, it makes the kernel MIPS16-tolerant.
2608
2609config CPU_SUPPORTS_MSA
2610 bool
2611
2612config ARCH_FLATMEM_ENABLE
2613 def_bool y
2614 depends on !NUMA && !CPU_LOONGSON2
2615
2616config ARCH_DISCONTIGMEM_ENABLE
2617 bool
2618 default y if SGI_IP27
2619 help
2620 Say Y to support efficient handling of discontiguous physical memory,
2621 for architectures which are either NUMA (Non-Uniform Memory Access)
2622 or have huge holes in the physical address space for other reasons.
2623 See <file:Documentation/vm/numa.rst> for more.
2624
2625config ARCH_SPARSEMEM_ENABLE
2626 bool
2627 select SPARSEMEM_STATIC
2628
2629config NUMA
2630 bool "NUMA Support"
2631 depends on SYS_SUPPORTS_NUMA
2632 help
2633 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2634 Access). This option improves performance on systems with more
2635 than two nodes; on two node systems it is generally better to
2636 leave it disabled; on single node systems disable this option
2637 disabled.
2638
2639config SYS_SUPPORTS_NUMA
2640 bool
2641
2642config RELOCATABLE
2643 bool "Relocatable kernel"
2644 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2645 help
2646 This builds a kernel image that retains relocation information
2647 so it can be loaded someplace besides the default 1MB.
2648 The relocations make the kernel binary about 15% larger,
2649 but are discarded at runtime
2650
2651config RELOCATION_TABLE_SIZE
2652 hex "Relocation table size"
2653 depends on RELOCATABLE
2654 range 0x0 0x01000000
2655 default "0x00100000"
2656 ---help---
2657 A table of relocation data will be appended to the kernel binary
2658 and parsed at boot to fix up the relocated kernel.
2659
2660 This option allows the amount of space reserved for the table to be
2661 adjusted, although the default of 1Mb should be ok in most cases.
2662
2663 The build will fail and a valid size suggested if this is too small.
2664
2665 If unsure, leave at the default value.
2666
2667config RANDOMIZE_BASE
2668 bool "Randomize the address of the kernel image"
2669 depends on RELOCATABLE
2670 ---help---
2671 Randomizes the physical and virtual address at which the
2672 kernel image is loaded, as a security feature that
2673 deters exploit attempts relying on knowledge of the location
2674 of kernel internals.
2675
2676 Entropy is generated using any coprocessor 0 registers available.
2677
2678 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2679
2680 If unsure, say N.
2681
2682config RANDOMIZE_BASE_MAX_OFFSET
2683 hex "Maximum kASLR offset" if EXPERT
2684 depends on RANDOMIZE_BASE
2685 range 0x0 0x40000000 if EVA || 64BIT
2686 range 0x0 0x08000000
2687 default "0x01000000"
2688 ---help---
2689 When kASLR is active, this provides the maximum offset that will
2690 be applied to the kernel image. It should be set according to the
2691 amount of physical RAM available in the target system minus
2692 PHYSICAL_START and must be a power of 2.
2693
2694 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2695 EVA or 64-bit. The default is 16Mb.
2696
2697config NODES_SHIFT
2698 int
2699 default "6"
2700 depends on NEED_MULTIPLE_NODES
2701
2702config HW_PERF_EVENTS
2703 bool "Enable hardware performance counter support for perf events"
2704 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2705 default y
2706 help
2707 Enable hardware performance counter support for perf events. If
2708 disabled, perf events will use software events only.
2709
2710config SMP
2711 bool "Multi-Processing support"
2712 depends on SYS_SUPPORTS_SMP
2713 help
2714 This enables support for systems with more than one CPU. If you have
2715 a system with only one CPU, say N. If you have a system with more
2716 than one CPU, say Y.
2717
2718 If you say N here, the kernel will run on uni- and multiprocessor
2719 machines, but will use only one CPU of a multiprocessor machine. If
2720 you say Y here, the kernel will run on many, but not all,
2721 uniprocessor machines. On a uniprocessor machine, the kernel
2722 will run faster if you say N here.
2723
2724 People using multiprocessor machines who say Y here should also say
2725 Y to "Enhanced Real Time Clock Support", below.
2726
2727 See also the SMP-HOWTO available at
2728 <http://www.tldp.org/docs.html#howto>.
2729
2730 If you don't know what to do here, say N.
2731
2732config HOTPLUG_CPU
2733 bool "Support for hot-pluggable CPUs"
2734 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2735 help
2736 Say Y here to allow turning CPUs off and on. CPUs can be
2737 controlled through /sys/devices/system/cpu.
2738 (Note: power management support will enable this option
2739 automatically on SMP systems. )
2740 Say N if you want to disable CPU hotplug.
2741
2742config SMP_UP
2743 bool
2744
2745config SYS_SUPPORTS_MIPS_CMP
2746 bool
2747
2748config SYS_SUPPORTS_MIPS_CPS
2749 bool
2750
2751config SYS_SUPPORTS_SMP
2752 bool
2753
2754config NR_CPUS_DEFAULT_4
2755 bool
2756
2757config NR_CPUS_DEFAULT_8
2758 bool
2759
2760config NR_CPUS_DEFAULT_16
2761 bool
2762
2763config NR_CPUS_DEFAULT_32
2764 bool
2765
2766config NR_CPUS_DEFAULT_64
2767 bool
2768
2769config NR_CPUS
2770 int "Maximum number of CPUs (2-256)"
2771 range 2 256
2772 depends on SMP
2773 default "4" if NR_CPUS_DEFAULT_4
2774 default "8" if NR_CPUS_DEFAULT_8
2775 default "16" if NR_CPUS_DEFAULT_16
2776 default "32" if NR_CPUS_DEFAULT_32
2777 default "64" if NR_CPUS_DEFAULT_64
2778 help
2779 This allows you to specify the maximum number of CPUs which this
2780 kernel will support. The maximum supported value is 32 for 32-bit
2781 kernel and 64 for 64-bit kernels; the minimum value which makes
2782 sense is 1 for Qemu (useful only for kernel debugging purposes)
2783 and 2 for all others.
2784
2785 This is purely to save memory - each supported CPU adds
2786 approximately eight kilobytes to the kernel image. For best
2787 performance should round up your number of processors to the next
2788 power of two.
2789
2790config MIPS_PERF_SHARED_TC_COUNTERS
2791 bool
2792
2793config MIPS_NR_CPU_NR_MAP_1024
2794 bool
2795
2796config MIPS_NR_CPU_NR_MAP
2797 int
2798 depends on SMP
2799 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2800 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2801
2802#
2803# Timer Interrupt Frequency Configuration
2804#
2805
2806choice
2807 prompt "Timer frequency"
2808 default HZ_250
2809 help
2810 Allows the configuration of the timer frequency.
2811
2812 config HZ_24
2813 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2814
2815 config HZ_48
2816 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2817
2818 config HZ_100
2819 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2820
2821 config HZ_128
2822 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2823
2824 config HZ_250
2825 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2826
2827 config HZ_256
2828 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2829
2830 config HZ_1000
2831 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2832
2833 config HZ_1024
2834 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2835
2836endchoice
2837
2838config SYS_SUPPORTS_24HZ
2839 bool
2840
2841config SYS_SUPPORTS_48HZ
2842 bool
2843
2844config SYS_SUPPORTS_100HZ
2845 bool
2846
2847config SYS_SUPPORTS_128HZ
2848 bool
2849
2850config SYS_SUPPORTS_250HZ
2851 bool
2852
2853config SYS_SUPPORTS_256HZ
2854 bool
2855
2856config SYS_SUPPORTS_1000HZ
2857 bool
2858
2859config SYS_SUPPORTS_1024HZ
2860 bool
2861
2862config SYS_SUPPORTS_ARBIT_HZ
2863 bool
2864 default y if !SYS_SUPPORTS_24HZ && \
2865 !SYS_SUPPORTS_48HZ && \
2866 !SYS_SUPPORTS_100HZ && \
2867 !SYS_SUPPORTS_128HZ && \
2868 !SYS_SUPPORTS_250HZ && \
2869 !SYS_SUPPORTS_256HZ && \
2870 !SYS_SUPPORTS_1000HZ && \
2871 !SYS_SUPPORTS_1024HZ
2872
2873config HZ
2874 int
2875 default 24 if HZ_24
2876 default 48 if HZ_48
2877 default 100 if HZ_100
2878 default 128 if HZ_128
2879 default 250 if HZ_250
2880 default 256 if HZ_256
2881 default 1000 if HZ_1000
2882 default 1024 if HZ_1024
2883
2884config SCHED_HRTICK
2885 def_bool HIGH_RES_TIMERS
2886
2887config KEXEC
2888 bool "Kexec system call"
2889 select KEXEC_CORE
2890 help
2891 kexec is a system call that implements the ability to shutdown your
2892 current kernel, and to start another kernel. It is like a reboot
2893 but it is independent of the system firmware. And like a reboot
2894 you can start any kernel with it, not just Linux.
2895
2896 The name comes from the similarity to the exec system call.
2897
2898 It is an ongoing process to be certain the hardware in a machine
2899 is properly shutdown, so do not be surprised if this code does not
2900 initially work for you. As of this writing the exact hardware
2901 interface is strongly in flux, so no good recommendation can be
2902 made.
2903
2904config CRASH_DUMP
2905 bool "Kernel crash dumps"
2906 help
2907 Generate crash dump after being started by kexec.
2908 This should be normally only set in special crash dump kernels
2909 which are loaded in the main kernel with kexec-tools into
2910 a specially reserved region and then later executed after
2911 a crash by kdump/kexec. The crash dump kernel must be compiled
2912 to a memory address not used by the main kernel or firmware using
2913 PHYSICAL_START.
2914
2915config PHYSICAL_START
2916 hex "Physical address where the kernel is loaded"
2917 default "0xffffffff84000000"
2918 depends on CRASH_DUMP
2919 help
2920 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2921 If you plan to use kernel for capturing the crash dump change
2922 this value to start of the reserved region (the "X" value as
2923 specified in the "crashkernel=YM@XM" command line boot parameter
2924 passed to the panic-ed kernel).
2925
2926config SECCOMP
2927 bool "Enable seccomp to safely compute untrusted bytecode"
2928 depends on PROC_FS
2929 default y
2930 help
2931 This kernel feature is useful for number crunching applications
2932 that may need to compute untrusted bytecode during their
2933 execution. By using pipes or other transports made available to
2934 the process as file descriptors supporting the read/write
2935 syscalls, it's possible to isolate those applications in
2936 their own address space using seccomp. Once seccomp is
2937 enabled via /proc/<pid>/seccomp, it cannot be disabled
2938 and the task is only allowed to execute a few safe syscalls
2939 defined by each seccomp mode.
2940
2941 If unsure, say Y. Only embedded should say N here.
2942
2943config MIPS_O32_FP64_SUPPORT
2944 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2945 depends on 32BIT || MIPS32_O32
2946 help
2947 When this is enabled, the kernel will support use of 64-bit floating
2948 point registers with binaries using the O32 ABI along with the
2949 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2950 32-bit MIPS systems this support is at the cost of increasing the
2951 size and complexity of the compiled FPU emulator. Thus if you are
2952 running a MIPS32 system and know that none of your userland binaries
2953 will require 64-bit floating point, you may wish to reduce the size
2954 of your kernel & potentially improve FP emulation performance by
2955 saying N here.
2956
2957 Although binutils currently supports use of this flag the details
2958 concerning its effect upon the O32 ABI in userland are still being
2959 worked on. In order to avoid userland becoming dependant upon current
2960 behaviour before the details have been finalised, this option should
2961 be considered experimental and only enabled by those working upon
2962 said details.
2963
2964 If unsure, say N.
2965
2966config USE_OF
2967 bool
2968 select OF
2969 select OF_EARLY_FLATTREE
2970 select IRQ_DOMAIN
2971
2972config UHI_BOOT
2973 bool
2974
2975config BUILTIN_DTB
2976 bool
2977
2978choice
2979 prompt "Kernel appended dtb support" if USE_OF
2980 default MIPS_NO_APPENDED_DTB
2981
2982 config MIPS_NO_APPENDED_DTB
2983 bool "None"
2984 help
2985 Do not enable appended dtb support.
2986
2987 config MIPS_ELF_APPENDED_DTB
2988 bool "vmlinux"
2989 help
2990 With this option, the boot code will look for a device tree binary
2991 DTB) included in the vmlinux ELF section .appended_dtb. By default
2992 it is empty and the DTB can be appended using binutils command
2993 objcopy:
2994
2995 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2996
2997 This is meant as a backward compatiblity convenience for those
2998 systems with a bootloader that can't be upgraded to accommodate
2999 the documented boot protocol using a device tree.
3000
3001 config MIPS_RAW_APPENDED_DTB
3002 bool "vmlinux.bin or vmlinuz.bin"
3003 help
3004 With this option, the boot code will look for a device tree binary
3005 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3006 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3007
3008 This is meant as a backward compatibility convenience for those
3009 systems with a bootloader that can't be upgraded to accommodate
3010 the documented boot protocol using a device tree.
3011
3012 Beware that there is very little in terms of protection against
3013 this option being confused by leftover garbage in memory that might
3014 look like a DTB header after a reboot if no actual DTB is appended
3015 to vmlinux.bin. Do not leave this option active in a production kernel
3016 if you don't intend to always append a DTB.
3017endchoice
3018
3019choice
3020 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3021 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3022 !MIPS_MALTA && \
3023 !CAVIUM_OCTEON_SOC
3024 default MIPS_CMDLINE_FROM_BOOTLOADER
3025
3026 config MIPS_CMDLINE_FROM_DTB
3027 depends on USE_OF
3028 bool "Dtb kernel arguments if available"
3029
3030 config MIPS_CMDLINE_DTB_EXTEND
3031 depends on USE_OF
3032 bool "Extend dtb kernel arguments with bootloader arguments"
3033
3034 config MIPS_CMDLINE_FROM_BOOTLOADER
3035 bool "Bootloader kernel arguments if available"
3036
3037 config MIPS_CMDLINE_BUILTIN_EXTEND
3038 depends on CMDLINE_BOOL
3039 bool "Extend builtin kernel arguments with bootloader arguments"
3040endchoice
3041
3042endmenu
3043
3044config LOCKDEP_SUPPORT
3045 bool
3046 default y
3047
3048config STACKTRACE_SUPPORT
3049 bool
3050 default y
3051
3052config HAVE_LATENCYTOP_SUPPORT
3053 bool
3054 default y
3055
3056config PGTABLE_LEVELS
3057 int
3058 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3059 default 3 if 64BIT && !PAGE_SIZE_64KB
3060 default 2
3061
3062config MIPS_AUTO_PFN_OFFSET
3063 bool
3064
3065menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3066
3067config PCI_DRIVERS_GENERIC
3068 select PCI_DOMAINS_GENERIC if PCI
3069 bool
3070
3071config PCI_DRIVERS_LEGACY
3072 def_bool !PCI_DRIVERS_GENERIC
3073 select NO_GENERIC_PCI_IOPORT_MAP
3074 select PCI_DOMAINS if PCI
3075
3076#
3077# ISA support is now enabled via select. Too many systems still have the one
3078# or other ISA chip on the board that users don't know about so don't expect
3079# users to choose the right thing ...
3080#
3081config ISA
3082 bool
3083
3084config TC
3085 bool "TURBOchannel support"
3086 depends on MACH_DECSTATION
3087 help
3088 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3089 processors. TURBOchannel programming specifications are available
3090 at:
3091 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3092 and:
3093 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3094 Linux driver support status is documented at:
3095 <http://www.linux-mips.org/wiki/DECstation>
3096
3097config MMU
3098 bool
3099 default y
3100
3101config ARCH_MMAP_RND_BITS_MIN
3102 default 12 if 64BIT
3103 default 8
3104
3105config ARCH_MMAP_RND_BITS_MAX
3106 default 18 if 64BIT
3107 default 15
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MIN
3110 default 8
3111
3112config ARCH_MMAP_RND_COMPAT_BITS_MAX
3113 default 15
3114
3115config I8253
3116 bool
3117 select CLKSRC_I8253
3118 select CLKEVT_I8253
3119 select MIPS_EXTERNAL_TIMER
3120
3121config ZONE_DMA
3122 bool
3123
3124config ZONE_DMA32
3125 bool
3126
3127endmenu
3128
3129config TRAD_SIGNALS
3130 bool
3131
3132config MIPS32_COMPAT
3133 bool
3134
3135config COMPAT
3136 bool
3137
3138config SYSVIPC_COMPAT
3139 bool
3140
3141config MIPS32_O32
3142 bool "Kernel support for o32 binaries"
3143 depends on 64BIT
3144 select ARCH_WANT_OLD_COMPAT_IPC
3145 select COMPAT
3146 select MIPS32_COMPAT
3147 select SYSVIPC_COMPAT if SYSVIPC
3148 help
3149 Select this option if you want to run o32 binaries. These are pure
3150 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3151 existing binaries are in this format.
3152
3153 If unsure, say Y.
3154
3155config MIPS32_N32
3156 bool "Kernel support for n32 binaries"
3157 depends on 64BIT
3158 select COMPAT
3159 select MIPS32_COMPAT
3160 select SYSVIPC_COMPAT if SYSVIPC
3161 help
3162 Select this option if you want to run n32 binaries. These are
3163 64-bit binaries using 32-bit quantities for addressing and certain
3164 data that would normally be 64-bit. They are used in special
3165 cases.
3166
3167 If unsure, say N.
3168
3169config BINFMT_ELF32
3170 bool
3171 default y if MIPS32_O32 || MIPS32_N32
3172 select ELFCORE
3173
3174menu "Power management options"
3175
3176config ARCH_HIBERNATION_POSSIBLE
3177 def_bool y
3178 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3179
3180config ARCH_SUSPEND_POSSIBLE
3181 def_bool y
3182 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3183
3184source "kernel/power/Kconfig"
3185
3186endmenu
3187
3188config MIPS_EXTERNAL_TIMER
3189 bool
3190
3191menu "CPU Power Management"
3192
3193if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3194source "drivers/cpufreq/Kconfig"
3195endif
3196
3197source "drivers/cpuidle/Kconfig"
3198
3199endmenu
3200
3201source "drivers/firmware/Kconfig"
3202
3203source "arch/mips/kvm/Kconfig"