1 # SPDX-License-Identifier: GPL-2.0
5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_CLOCKSOURCE_DATA
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
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 GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
38 select HANDLE_DOMAIN_IRQ
39 select HAVE_ARCH_COMPILER_H
40 select HAVE_ARCH_JUMP_LABEL
42 select HAVE_ARCH_MMAP_RND_BITS if MMU
43 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
44 select HAVE_ARCH_SECCOMP_FILTER
45 select HAVE_ARCH_TRACEHOOK
46 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
47 select HAVE_EBPF_JIT if (!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
57 select HAVE_FTRACE_MCOUNT_RECORD
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_FUNCTION_TRACER
61 select HAVE_IOREMAP_PROT
62 select HAVE_IRQ_EXIT_ON_IRQ_STACK
63 select HAVE_IRQ_TIME_ACCOUNTING
65 select HAVE_KRETPROBES
66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
67 select HAVE_MEMBLOCK_NODE_MAP
68 select HAVE_MOD_ARCH_SPECIFIC
71 select HAVE_PERF_EVENTS
72 select HAVE_REGS_AND_STACK_ACCESS_API
74 select HAVE_STACKPROTECTOR
75 select HAVE_SYSCALL_TRACEPOINTS
76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
77 select IRQ_FORCED_THREADING
79 select MODULES_USE_ELF_RELA if MODULES && 64BIT
80 select MODULES_USE_ELF_REL if MODULES
81 select PERF_USE_VMALLOC
83 select SYSCTL_EXCEPTION_TRACE
86 menu "Machine selection"
93 bool "Generic board-agnostic MIPS kernel"
97 select CLKSRC_MIPS_GIC
99 select CPU_MIPSR2_IRQ_VI
100 select CPU_MIPSR2_IRQ_EI
102 select DMA_PERDEV_COHERENT
106 select MIPS_AUTO_PFN_OFFSET
107 select MIPS_CPU_SCACHE
109 select MIPS_L1_CACHE_SHIFT_7
110 select NO_EXCEPT_FILL
111 select PCI_DRIVERS_GENERIC
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
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.
147 bool "Alchemy processor based machines"
148 select PHYS_ADDR_T_64BIT
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
157 select SYS_SUPPORTS_ZBOOT
161 bool "Texas Instruments AR7"
163 select DMA_NONCOHERENT
167 select NO_EXCEPT_FILL
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
179 Support for the Texas Instruments AR7 System-on-a-Chip
180 family: TNETD7100, 7200 and 7300.
183 bool "Atheros AR231x/AR531x SoC support"
186 select DMA_NONCOHERENT
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
194 Support for Atheros AR231x and Atheros AR531x based boards
197 bool "Atheros AR71XX/AR724X/AR913X based boards"
198 select ARCH_HAS_RESET_CONTROLLER
202 select DMA_NONCOHERENT
209 select SYS_HAS_CPU_MIPS32_R2
210 select SYS_HAS_EARLY_PRINTK
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_BIG_ENDIAN
213 select SYS_SUPPORTS_MIPS16
214 select SYS_SUPPORTS_ZBOOT_UART_PROM
216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
218 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
221 bool "Broadcom Generic BMIPS kernel"
222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
223 select ARCH_HAS_PHYS_TO_DMA
225 select NO_EXCEPT_FILL
231 select BCM6345_L1_IRQ
232 select BCM7038_L1_IRQ
233 select BCM7120_L2_IRQ
234 select BRCMSTB_L2_IRQ
236 select DMA_NONCOHERENT
237 select SYS_SUPPORTS_32BIT_KERNEL
238 select SYS_SUPPORTS_LITTLE_ENDIAN
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_HIGHMEM
241 select SYS_HAS_CPU_BMIPS32_3300
242 select SYS_HAS_CPU_BMIPS4350
243 select SYS_HAS_CPU_BMIPS4380
244 select SYS_HAS_CPU_BMIPS5000
246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
250 select HARDIRQS_SW_RESEND
252 Build a generic DT-based kernel image that boots on select
253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
255 must be set appropriately for your board.
258 bool "Broadcom BCM47XX based boards"
262 select DMA_NONCOHERENT
265 select SYS_HAS_CPU_MIPS32_R1
266 select NO_EXCEPT_FILL
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_LITTLE_ENDIAN
269 select SYS_SUPPORTS_MIPS16
270 select SYS_SUPPORTS_ZBOOT
271 select SYS_HAS_EARLY_PRINTK
272 select USE_GENERIC_EARLY_PRINTK_8250
274 select LEDS_GPIO_REGISTER
277 select BCM47XX_SSB if !BCM47XX_BCMA
279 Support for BCM47XX based boards
282 bool "Broadcom BCM63XX based boards"
287 select DMA_NONCOHERENT
289 select SYS_SUPPORTS_32BIT_KERNEL
290 select SYS_SUPPORTS_BIG_ENDIAN
291 select SYS_HAS_EARLY_PRINTK
295 select MIPS_L1_CACHE_SHIFT_4
298 Support for BCM63XX based boards
305 select DMA_NONCOHERENT
311 select PCI_GT64XXX_PCI0
312 select SYS_HAS_CPU_NEVADA
313 select SYS_HAS_EARLY_PRINTK
314 select SYS_SUPPORTS_32BIT_KERNEL
315 select SYS_SUPPORTS_64BIT_KERNEL
316 select SYS_SUPPORTS_LITTLE_ENDIAN
317 select USE_GENERIC_EARLY_PRINTK_8250
319 config MACH_DECSTATION
323 select CEVT_R4K if CPU_R4X00
325 select CSRC_R4K if CPU_R4X00
326 select CPU_DADDI_WORKAROUNDS if 64BIT
327 select CPU_R4000_WORKAROUNDS if 64BIT
328 select CPU_R4400_WORKAROUNDS if 64BIT
329 select DMA_NONCOHERENT
332 select SYS_HAS_CPU_R3000
333 select SYS_HAS_CPU_R4X00
334 select SYS_SUPPORTS_32BIT_KERNEL
335 select SYS_SUPPORTS_64BIT_KERNEL
336 select SYS_SUPPORTS_LITTLE_ENDIAN
337 select SYS_SUPPORTS_128HZ
338 select SYS_SUPPORTS_256HZ
339 select SYS_SUPPORTS_1024HZ
340 select MIPS_L1_CACHE_SHIFT_4
342 This enables support for DEC's MIPS based workstations. For details
343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
344 DECstation porting pages on <http://decstation.unix-ag.org/>.
346 If you have one of the following DECstation Models you definitely
347 want to choose R4xx0 for the CPU Type:
354 otherwise choose R3000.
357 bool "Jazz family of machines"
358 select ARCH_MIGHT_HAVE_PC_PARPORT
359 select ARCH_MIGHT_HAVE_PC_SERIO
362 select ARCH_MAY_HAVE_PC_FDC
365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
366 select GENERIC_ISA_DMA
367 select HAVE_PCSPKR_PLATFORM
372 select SYS_HAS_CPU_R4X00
373 select SYS_SUPPORTS_32BIT_KERNEL
374 select SYS_SUPPORTS_64BIT_KERNEL
375 select SYS_SUPPORTS_100HZ
377 This a family of machines based on the MIPS R4030 chipset which was
378 used by several vendors to build RISC/os and Windows NT workstations.
379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
380 Olivetti M700-10 workstations.
383 bool "Ingenic SoC based machines"
384 select SYS_SUPPORTS_32BIT_KERNEL
385 select SYS_SUPPORTS_LITTLE_ENDIAN
386 select SYS_SUPPORTS_ZBOOT_UART16550
387 select DMA_NONCOHERENT
392 select GENERIC_IRQ_CHIP
393 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
398 bool "Lantiq based platforms"
399 select DMA_NONCOHERENT
403 select SYS_HAS_CPU_MIPS32_R1
404 select SYS_HAS_CPU_MIPS32_R2
405 select SYS_SUPPORTS_BIG_ENDIAN
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_MIPS16
408 select SYS_SUPPORTS_MULTITHREADING
409 select SYS_SUPPORTS_VPE_LOADER
410 select SYS_HAS_EARLY_PRINTK
417 select PINCTRL_LANTIQ
418 select ARCH_HAS_RESET_CONTROLLER
419 select RESET_CONTROLLER
422 bool "LASAT Networks platforms"
426 select DMA_NONCOHERENT
427 select SYS_HAS_EARLY_PRINTK
430 select PCI_GT64XXX_PCI0
432 select R5000_CPU_SCACHE
433 select SYS_HAS_CPU_R5000
434 select SYS_SUPPORTS_32BIT_KERNEL
435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
436 select SYS_SUPPORTS_LITTLE_ENDIAN
438 config MACH_LOONGSON32
439 bool "Loongson-1 family of machines"
440 select SYS_SUPPORTS_ZBOOT
442 This enables support for the Loongson-1 family of machines.
444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
445 the Institute of Computing Technology (ICT), Chinese Academy of
448 config MACH_LOONGSON64
449 bool "Loongson-2/3 family of machines"
450 select SYS_SUPPORTS_ZBOOT
452 This enables the support of Loongson-2/3 family of machines.
454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
455 family of multi-core CPUs. They are both 64-bit general-purpose
456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
458 in the People's Republic of China. The chief architect is Professor
461 config MACH_PISTACHIO
462 bool "IMG Pistachio SoC based boards"
466 select CLKSRC_MIPS_GIC
469 select DMA_NONCOHERENT
474 select MIPS_CPU_SCACHE
478 select SYS_HAS_CPU_MIPS32_R2
479 select SYS_SUPPORTS_32BIT_KERNEL
480 select SYS_SUPPORTS_LITTLE_ENDIAN
481 select SYS_SUPPORTS_MIPS_CPS
482 select SYS_SUPPORTS_MULTITHREADING
483 select SYS_SUPPORTS_RELOCATABLE
484 select SYS_SUPPORTS_ZBOOT
485 select SYS_HAS_EARLY_PRINTK
486 select USE_GENERIC_EARLY_PRINTK_8250
489 This enables support for the IMG Pistachio SoC platform.
492 bool "MIPS Malta board"
493 select ARCH_MAY_HAVE_PC_FDC
494 select ARCH_MIGHT_HAVE_PC_PARPORT
495 select ARCH_MIGHT_HAVE_PC_SERIO
500 select CLKSRC_MIPS_GIC
503 select DMA_MAYBE_COHERENT
504 select GENERIC_ISA_DMA
505 select HAVE_PCSPKR_PLATFORM
512 select MIPS_CPU_SCACHE
514 select MIPS_L1_CACHE_SHIFT_6
516 select PCI_GT64XXX_PCI0
519 select SYS_HAS_CPU_MIPS32_R1
520 select SYS_HAS_CPU_MIPS32_R2
521 select SYS_HAS_CPU_MIPS32_R3_5
522 select SYS_HAS_CPU_MIPS32_R5
523 select SYS_HAS_CPU_MIPS32_R6
524 select SYS_HAS_CPU_MIPS64_R1
525 select SYS_HAS_CPU_MIPS64_R2
526 select SYS_HAS_CPU_MIPS64_R6
527 select SYS_HAS_CPU_NEVADA
528 select SYS_HAS_CPU_RM7000
529 select SYS_SUPPORTS_32BIT_KERNEL
530 select SYS_SUPPORTS_64BIT_KERNEL
531 select SYS_SUPPORTS_BIG_ENDIAN
532 select SYS_SUPPORTS_HIGHMEM
533 select SYS_SUPPORTS_LITTLE_ENDIAN
534 select SYS_SUPPORTS_MICROMIPS
535 select SYS_SUPPORTS_MIPS16
536 select SYS_SUPPORTS_MIPS_CMP
537 select SYS_SUPPORTS_MIPS_CPS
538 select SYS_SUPPORTS_MULTITHREADING
539 select SYS_SUPPORTS_RELOCATABLE
540 select SYS_SUPPORTS_SMARTMIPS
541 select SYS_SUPPORTS_VPE_LOADER
542 select SYS_SUPPORTS_ZBOOT
544 select ZONE_DMA32 if 64BIT
546 This enables support for the MIPS Technologies Malta evaluation
550 bool "Microchip PIC32 Family"
552 This enables support for the Microchip PIC32 family of platforms.
554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
558 bool "NEC EMMA2RH Mark-eins board"
562 This enables support for the NEC Electronics Mark-eins boards.
565 bool "NEC VR4100 series based machines"
568 select SYS_HAS_CPU_VR41XX
569 select SYS_SUPPORTS_MIPS16
573 bool "NXP STB220 board"
576 Support for NXP Semiconductors STB220 Development Board.
583 Support for NXP Semiconductors STB225 Development Board.
586 bool "PMC-Sierra MSP chipsets"
589 select DMA_NONCOHERENT
591 select NO_EXCEPT_FILL
593 select SYS_HAS_CPU_MIPS32_R1
594 select SYS_HAS_CPU_MIPS32_R2
595 select SYS_SUPPORTS_32BIT_KERNEL
596 select SYS_SUPPORTS_BIG_ENDIAN
597 select SYS_SUPPORTS_MIPS16
600 select SERIAL_8250_CONSOLE
601 select USB_EHCI_BIG_ENDIAN_MMIO
602 select USB_EHCI_BIG_ENDIAN_DESC
604 This adds support for the PMC-Sierra family of Multi-Service
605 Processor System-On-A-Chips. These parts include a number
606 of integrated peripherals, interfaces and DSPs in addition to
607 a variety of MIPS cores.
610 bool "Ralink based machines"
614 select DMA_NONCOHERENT
617 select SYS_HAS_CPU_MIPS32_R1
618 select SYS_HAS_CPU_MIPS32_R2
619 select SYS_SUPPORTS_32BIT_KERNEL
620 select SYS_SUPPORTS_LITTLE_ENDIAN
621 select SYS_SUPPORTS_MIPS16
622 select SYS_HAS_EARLY_PRINTK
624 select ARCH_HAS_RESET_CONTROLLER
625 select RESET_CONTROLLER
628 bool "SGI IP22 (Indy/Indigo2)"
631 select ARCH_MIGHT_HAVE_PC_SERIO
635 select DEFAULT_SGI_PARTITION
636 select DMA_NONCOHERENT
640 select IP22_CPU_SCACHE
642 select GENERIC_ISA_DMA_SUPPORT_BROKEN
644 select SGI_HAS_INDYDOG
650 select SYS_HAS_CPU_R4X00
651 select SYS_HAS_CPU_R5000
653 # Disable EARLY_PRINTK for now since it leads to overwritten prom
654 # memory during early boot on some machines.
656 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
657 # for a more details discussion
659 # select SYS_HAS_EARLY_PRINTK
660 select SYS_SUPPORTS_32BIT_KERNEL
661 select SYS_SUPPORTS_64BIT_KERNEL
662 select SYS_SUPPORTS_BIG_ENDIAN
663 select MIPS_L1_CACHE_SHIFT_7
665 This are the SGI Indy, Challenge S and Indigo2, as well as certain
666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
667 that runs on these, say Y here.
670 bool "SGI IP27 (Origin200/2000)"
671 select ARCH_HAS_PHYS_TO_DMA
675 select DEFAULT_SGI_PARTITION
676 select SYS_HAS_EARLY_PRINTK
679 select IRQ_DOMAIN_HIERARCHY
680 select NR_CPUS_DEFAULT_64
681 select PCI_DRIVERS_GENERIC
682 select PCI_XTALK_BRIDGE
683 select SYS_HAS_CPU_R10000
684 select SYS_SUPPORTS_64BIT_KERNEL
685 select SYS_SUPPORTS_BIG_ENDIAN
686 select SYS_SUPPORTS_NUMA
687 select SYS_SUPPORTS_SMP
688 select MIPS_L1_CACHE_SHIFT_7
690 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
691 workstations. To compile a Linux kernel that runs on these, say Y
695 bool "SGI IP28 (Indigo2 R10k)"
698 select ARCH_MIGHT_HAVE_PC_SERIO
702 select DEFAULT_SGI_PARTITION
703 select DMA_NONCOHERENT
704 select GENERIC_ISA_DMA_SUPPORT_BROKEN
710 select SGI_HAS_INDYDOG
716 select SYS_HAS_CPU_R10000
718 # Disable EARLY_PRINTK for now since it leads to overwritten prom
719 # memory during early boot on some machines.
721 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
722 # for a more details discussion
724 # select SYS_HAS_EARLY_PRINTK
725 select SYS_SUPPORTS_64BIT_KERNEL
726 select SYS_SUPPORTS_BIG_ENDIAN
727 select MIPS_L1_CACHE_SHIFT_7
729 This is the SGI Indigo2 with R10000 processor. To compile a Linux
730 kernel that runs on these, say Y here.
734 select ARCH_HAS_PHYS_TO_DMA
740 select DMA_NONCOHERENT
743 select R5000_CPU_SCACHE
744 select RM7000_CPU_SCACHE
745 select SYS_HAS_CPU_R5000
746 select SYS_HAS_CPU_R10000 if BROKEN
747 select SYS_HAS_CPU_RM7000
748 select SYS_HAS_CPU_NEVADA
749 select SYS_SUPPORTS_64BIT_KERNEL
750 select SYS_SUPPORTS_BIG_ENDIAN
752 If you want this kernel to run on SGI O2 workstation, say Y here.
755 bool "Sibyte BCM91120C-CRhine"
757 select SIBYTE_BCM1120
759 select SYS_HAS_CPU_SB1
760 select SYS_SUPPORTS_BIG_ENDIAN
761 select SYS_SUPPORTS_LITTLE_ENDIAN
764 bool "Sibyte BCM91120x-Carmel"
766 select SIBYTE_BCM1120
768 select SYS_HAS_CPU_SB1
769 select SYS_SUPPORTS_BIG_ENDIAN
770 select SYS_SUPPORTS_LITTLE_ENDIAN
773 bool "Sibyte BCM91125C-CRhone"
775 select SIBYTE_BCM1125
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
780 select SYS_SUPPORTS_LITTLE_ENDIAN
783 bool "Sibyte BCM91125E-Rhone"
785 select SIBYTE_BCM1125H
787 select SYS_HAS_CPU_SB1
788 select SYS_SUPPORTS_BIG_ENDIAN
789 select SYS_SUPPORTS_LITTLE_ENDIAN
792 bool "Sibyte BCM91250A-SWARM"
794 select HAVE_PATA_PLATFORM
797 select SYS_HAS_CPU_SB1
798 select SYS_SUPPORTS_BIG_ENDIAN
799 select SYS_SUPPORTS_HIGHMEM
800 select SYS_SUPPORTS_LITTLE_ENDIAN
801 select ZONE_DMA32 if 64BIT
802 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
804 config SIBYTE_LITTLESUR
805 bool "Sibyte BCM91250C2-LittleSur"
807 select HAVE_PATA_PLATFORM
810 select SYS_HAS_CPU_SB1
811 select SYS_SUPPORTS_BIG_ENDIAN
812 select SYS_SUPPORTS_HIGHMEM
813 select SYS_SUPPORTS_LITTLE_ENDIAN
814 select ZONE_DMA32 if 64BIT
816 config SIBYTE_SENTOSA
817 bool "Sibyte BCM91250E-Sentosa"
821 select SYS_HAS_CPU_SB1
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
827 bool "Sibyte BCM91480B-BigSur"
829 select NR_CPUS_DEFAULT_4
830 select SIBYTE_BCM1x80
832 select SYS_HAS_CPU_SB1
833 select SYS_SUPPORTS_BIG_ENDIAN
834 select SYS_SUPPORTS_HIGHMEM
835 select SYS_SUPPORTS_LITTLE_ENDIAN
836 select ZONE_DMA32 if 64BIT
837 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
840 bool "SNI RM200/300/400"
841 select FW_ARC if CPU_LITTLE_ENDIAN
842 select FW_ARC32 if CPU_LITTLE_ENDIAN
843 select FW_SNIPROM if CPU_BIG_ENDIAN
844 select ARCH_MAY_HAVE_PC_FDC
845 select ARCH_MIGHT_HAVE_PC_PARPORT
846 select ARCH_MIGHT_HAVE_PC_SERIO
850 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
851 select DMA_NONCOHERENT
852 select GENERIC_ISA_DMA
854 select HAVE_PCSPKR_PLATFORM
860 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
861 select SYS_HAS_CPU_R4X00
862 select SYS_HAS_CPU_R5000
863 select SYS_HAS_CPU_R10000
864 select R5000_CPU_SCACHE
865 select SYS_HAS_EARLY_PRINTK
866 select SYS_SUPPORTS_32BIT_KERNEL
867 select SYS_SUPPORTS_64BIT_KERNEL
868 select SYS_SUPPORTS_BIG_ENDIAN
869 select SYS_SUPPORTS_HIGHMEM
870 select SYS_SUPPORTS_LITTLE_ENDIAN
872 The SNI RM200/300/400 are MIPS-based machines manufactured by
873 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
874 Technology and now in turn merged with Fujitsu. Say Y here to
875 support this machine type.
878 bool "Toshiba TX39 series based machines"
881 bool "Toshiba TX49 series based machines"
883 config MIKROTIK_RB532
884 bool "Mikrotik RB532 boards"
887 select DMA_NONCOHERENT
890 select SYS_HAS_CPU_MIPS32_R1
891 select SYS_SUPPORTS_32BIT_KERNEL
892 select SYS_SUPPORTS_LITTLE_ENDIAN
896 select MIPS_L1_CACHE_SHIFT_4
898 Support the Mikrotik(tm) RouterBoard 532 series,
899 based on the IDT RC32434 SoC.
901 config CAVIUM_OCTEON_SOC
902 bool "Cavium Networks Octeon SoC based boards"
904 select ARCH_HAS_PHYS_TO_DMA
906 select PHYS_ADDR_T_64BIT
907 select SYS_SUPPORTS_64BIT_KERNEL
908 select SYS_SUPPORTS_BIG_ENDIAN
910 select EDAC_ATOMIC_SCRUB
911 select SYS_SUPPORTS_LITTLE_ENDIAN
912 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
913 select SYS_HAS_EARLY_PRINTK
914 select SYS_HAS_CPU_CAVIUM_OCTEON
921 select ARCH_SPARSEMEM_ENABLE
922 select SYS_SUPPORTS_SMP
923 select NR_CPUS_DEFAULT_64
924 select MIPS_NR_CPU_NR_MAP_1024
926 select MTD_COMPLEX_MAPPINGS
928 select SYS_SUPPORTS_RELOCATABLE
930 This option supports all of the Octeon reference boards from Cavium
931 Networks. It builds a kernel that dynamically determines the Octeon
932 CPU type and supports all known board reference implementations.
933 Some of the supported boards are:
940 Say Y here for most Octeon reference boards.
943 bool "Netlogic XLR/XLS based systems"
946 select SYS_HAS_CPU_XLR
947 select SYS_SUPPORTS_SMP
950 select SYS_SUPPORTS_32BIT_KERNEL
951 select SYS_SUPPORTS_64BIT_KERNEL
952 select PHYS_ADDR_T_64BIT
953 select SYS_SUPPORTS_BIG_ENDIAN
954 select SYS_SUPPORTS_HIGHMEM
955 select NR_CPUS_DEFAULT_32
959 select ZONE_DMA32 if 64BIT
961 select SYS_HAS_EARLY_PRINTK
962 select SYS_SUPPORTS_ZBOOT
963 select SYS_SUPPORTS_ZBOOT_UART16550
965 Support for systems based on Netlogic XLR and XLS processors.
966 Say Y here if you have a XLR or XLS based board.
969 bool "Netlogic XLP based systems"
972 select SYS_HAS_CPU_XLP
973 select SYS_SUPPORTS_SMP
975 select SYS_SUPPORTS_32BIT_KERNEL
976 select SYS_SUPPORTS_64BIT_KERNEL
977 select PHYS_ADDR_T_64BIT
979 select SYS_SUPPORTS_BIG_ENDIAN
980 select SYS_SUPPORTS_LITTLE_ENDIAN
981 select SYS_SUPPORTS_HIGHMEM
982 select NR_CPUS_DEFAULT_32
986 select ZONE_DMA32 if 64BIT
988 select SYS_HAS_EARLY_PRINTK
990 select SYS_SUPPORTS_ZBOOT
991 select SYS_SUPPORTS_ZBOOT_UART16550
993 This board is based on Netlogic XLP Processor.
994 Say Y here if you have a XLP based board.
997 bool "Para-Virtualized guest system"
1000 select SYS_SUPPORTS_64BIT_KERNEL
1001 select SYS_SUPPORTS_32BIT_KERNEL
1002 select SYS_SUPPORTS_BIG_ENDIAN
1003 select SYS_SUPPORTS_SMP
1004 select NR_CPUS_DEFAULT_4
1005 select SYS_HAS_EARLY_PRINTK
1006 select SYS_HAS_CPU_MIPS32_R2
1007 select SYS_HAS_CPU_MIPS64_R2
1008 select SYS_HAS_CPU_CAVIUM_OCTEON
1010 select SWAP_IO_SPACE
1012 This option supports guest running under ????
1016 source "arch/mips/alchemy/Kconfig"
1017 source "arch/mips/ath25/Kconfig"
1018 source "arch/mips/ath79/Kconfig"
1019 source "arch/mips/bcm47xx/Kconfig"
1020 source "arch/mips/bcm63xx/Kconfig"
1021 source "arch/mips/bmips/Kconfig"
1022 source "arch/mips/generic/Kconfig"
1023 source "arch/mips/jazz/Kconfig"
1024 source "arch/mips/jz4740/Kconfig"
1025 source "arch/mips/lantiq/Kconfig"
1026 source "arch/mips/lasat/Kconfig"
1027 source "arch/mips/pic32/Kconfig"
1028 source "arch/mips/pistachio/Kconfig"
1029 source "arch/mips/pmcs-msp71xx/Kconfig"
1030 source "arch/mips/ralink/Kconfig"
1031 source "arch/mips/sgi-ip27/Kconfig"
1032 source "arch/mips/sibyte/Kconfig"
1033 source "arch/mips/txx9/Kconfig"
1034 source "arch/mips/vr41xx/Kconfig"
1035 source "arch/mips/cavium-octeon/Kconfig"
1036 source "arch/mips/loongson32/Kconfig"
1037 source "arch/mips/loongson64/Kconfig"
1038 source "arch/mips/netlogic/Kconfig"
1039 source "arch/mips/paravirt/Kconfig"
1043 config GENERIC_HWEIGHT
1047 config GENERIC_CALIBRATE_DELAY
1051 config SCHED_OMIT_FRAME_POINTER
1056 # Select some configuration options automatically based on user selections.
1061 config ARCH_MAY_HAVE_PC_FDC
1097 config MIPS_CLOCK_VSYSCALL
1098 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1107 config ARCH_SUPPORTS_UPROBES
1110 config DMA_MAYBE_COHERENT
1111 select ARCH_HAS_DMA_COHERENCE_H
1112 select DMA_NONCOHERENT
1115 config DMA_PERDEV_COHERENT
1117 select ARCH_HAS_SETUP_DMA_OPS
1118 select DMA_NONCOHERENT
1120 config DMA_NONCOHERENT
1122 select ARCH_HAS_DMA_MMAP_PGPROT
1123 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1124 select NEED_DMA_MAP_STATE
1125 select ARCH_HAS_DMA_COHERENT_TO_PFN
1126 select DMA_NONCOHERENT_CACHE_SYNC
1128 config SYS_HAS_EARLY_PRINTK
1131 config SYS_SUPPORTS_HOTPLUG_CPU
1134 config MIPS_BONITO64
1149 config NO_IOPORT_MAP
1154 default y if !CPU_HAS_LOAD_STORE_LR
1156 config GENERIC_ISA_DMA
1158 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1161 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1163 select GENERIC_ISA_DMA
1168 config HOLES_IN_ZONE
1171 config SYS_SUPPORTS_RELOCATABLE
1174 Selected if the platform supports relocating the kernel.
1175 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1176 to allow access to command line and entropy sources.
1178 config MIPS_CBPF_JIT
1180 depends on BPF_JIT && HAVE_CBPF_JIT
1182 config MIPS_EBPF_JIT
1184 depends on BPF_JIT && HAVE_EBPF_JIT
1188 # Endianness selection. Sufficiently obscure so many users don't know what to
1189 # answer,so we try hard to limit the available choices. Also the use of a
1190 # choice statement should be more obvious to the user.
1193 prompt "Endianness selection"
1195 Some MIPS machines can be configured for either little or big endian
1196 byte order. These modes require different kernels and a different
1197 Linux distribution. In general there is one preferred byteorder for a
1198 particular system but some systems are just as commonly used in the
1199 one or the other endianness.
1201 config CPU_BIG_ENDIAN
1203 depends on SYS_SUPPORTS_BIG_ENDIAN
1205 config CPU_LITTLE_ENDIAN
1206 bool "Little endian"
1207 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1214 config SYS_SUPPORTS_APM_EMULATION
1217 config SYS_SUPPORTS_BIG_ENDIAN
1220 config SYS_SUPPORTS_LITTLE_ENDIAN
1223 config SYS_SUPPORTS_HUGETLBFS
1225 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1228 config MIPS_HUGE_TLB_SUPPORT
1229 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1246 config PCI_GT64XXX_PCI0
1249 config PCI_XTALK_BRIDGE
1252 config NO_EXCEPT_FILL
1259 select DMA_NONCOHERENT
1261 select SWAP_IO_SPACE
1262 select SYS_HAS_CPU_R5500
1263 select SYS_SUPPORTS_32BIT_KERNEL
1264 select SYS_SUPPORTS_64BIT_KERNEL
1265 select SYS_SUPPORTS_BIG_ENDIAN
1272 select DMA_NONCOHERENT
1273 select SYS_HAS_CPU_MIPS32_R2
1274 select SYS_SUPPORTS_32BIT_KERNEL
1275 select SYS_SUPPORTS_LITTLE_ENDIAN
1276 select SYS_SUPPORTS_BIG_ENDIAN
1277 select SYS_SUPPORTS_MIPS16
1278 select CPU_MIPSR2_IRQ_VI
1287 config SWAP_IO_SPACE
1290 config SGI_HAS_INDYDOG
1302 config SGI_HAS_ZILOG
1305 config SGI_HAS_I8042
1308 config DEFAULT_SGI_PARTITION
1320 config MIPS_L1_CACHE_SHIFT_4
1323 config MIPS_L1_CACHE_SHIFT_5
1326 config MIPS_L1_CACHE_SHIFT_6
1329 config MIPS_L1_CACHE_SHIFT_7
1332 config MIPS_L1_CACHE_SHIFT
1334 default "7" if MIPS_L1_CACHE_SHIFT_7
1335 default "6" if MIPS_L1_CACHE_SHIFT_6
1336 default "5" if MIPS_L1_CACHE_SHIFT_5
1337 default "4" if MIPS_L1_CACHE_SHIFT_4
1340 config HAVE_STD_PC_SERIAL_PORT
1344 bool "ARC console support"
1345 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1349 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1354 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1363 menu "CPU selection"
1369 config CPU_LOONGSON3
1370 bool "Loongson 3 CPU"
1371 depends on SYS_HAS_CPU_LOONGSON3
1372 select ARCH_HAS_PHYS_TO_DMA
1373 select CPU_SUPPORTS_64BIT_KERNEL
1374 select CPU_SUPPORTS_HIGHMEM
1375 select CPU_SUPPORTS_HUGEPAGES
1376 select CPU_HAS_LOAD_STORE_LR
1377 select WEAK_ORDERING
1378 select WEAK_REORDERING_BEYOND_LLSC
1379 select MIPS_PGD_C0_CONTEXT
1380 select MIPS_L1_CACHE_SHIFT_6
1384 The Loongson 3 processor implements the MIPS64R2 instruction
1385 set with many extensions.
1387 config LOONGSON3_ENHANCEMENT
1388 bool "New Loongson 3 CPU Enhancements"
1391 select CPU_HAS_PREFETCH
1392 depends on CPU_LOONGSON3
1394 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1395 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1396 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1397 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1398 Fast TLB refill support, etc.
1400 This option enable those enhancements which are not probed at run
1401 time. If you want a generic kernel to run on all Loongson 3 machines,
1402 please say 'N' here. If you want a high-performance kernel to run on
1403 new Loongson 3 machines only, please say 'Y' here.
1405 config CPU_LOONGSON3_WORKAROUNDS
1406 bool "Old Loongson 3 LLSC Workarounds"
1408 depends on CPU_LOONGSON3
1410 Loongson 3 processors have the llsc issues which require workarounds.
1411 Without workarounds the system may hang unexpectedly.
1413 Newer Loongson 3 will fix these issues and no workarounds are needed.
1414 The workarounds have no significant side effect on them but may
1415 decrease the performance of the system so this option should be
1416 disabled unless the kernel is intended to be run on old systems.
1418 If unsure, please say Y.
1420 config CPU_LOONGSON2E
1422 depends on SYS_HAS_CPU_LOONGSON2E
1423 select CPU_LOONGSON2
1425 The Loongson 2E processor implements the MIPS III instruction set
1426 with many extensions.
1428 It has an internal FPGA northbridge, which is compatible to
1431 config CPU_LOONGSON2F
1433 depends on SYS_HAS_CPU_LOONGSON2F
1434 select CPU_LOONGSON2
1437 The Loongson 2F processor implements the MIPS III instruction set
1438 with many extensions.
1440 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1441 have a similar programming interface with FPGA northbridge used in
1444 config CPU_LOONGSON1B
1446 depends on SYS_HAS_CPU_LOONGSON1B
1447 select CPU_LOONGSON1
1448 select LEDS_GPIO_REGISTER
1450 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1451 Release 1 instruction set and part of the MIPS32 Release 2
1454 config CPU_LOONGSON1C
1456 depends on SYS_HAS_CPU_LOONGSON1C
1457 select CPU_LOONGSON1
1458 select LEDS_GPIO_REGISTER
1460 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1461 Release 1 instruction set and part of the MIPS32 Release 2
1464 config CPU_MIPS32_R1
1465 bool "MIPS32 Release 1"
1466 depends on SYS_HAS_CPU_MIPS32_R1
1467 select CPU_HAS_PREFETCH
1468 select CPU_HAS_LOAD_STORE_LR
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_HIGHMEM
1472 Choose this option to build a kernel for release 1 or later of the
1473 MIPS32 architecture. Most modern embedded systems with a 32-bit
1474 MIPS processor are based on a MIPS32 processor. If you know the
1475 specific type of processor in your system, choose those that one
1476 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1477 Release 2 of the MIPS32 architecture is available since several
1478 years so chances are you even have a MIPS32 Release 2 processor
1479 in which case you should choose CPU_MIPS32_R2 instead for better
1482 config CPU_MIPS32_R2
1483 bool "MIPS32 Release 2"
1484 depends on SYS_HAS_CPU_MIPS32_R2
1485 select CPU_HAS_PREFETCH
1486 select CPU_HAS_LOAD_STORE_LR
1487 select CPU_SUPPORTS_32BIT_KERNEL
1488 select CPU_SUPPORTS_HIGHMEM
1489 select CPU_SUPPORTS_MSA
1492 Choose this option to build a kernel for release 2 or later of the
1493 MIPS32 architecture. Most modern embedded systems with a 32-bit
1494 MIPS processor are based on a MIPS32 processor. If you know the
1495 specific type of processor in your system, choose those that one
1496 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1498 config CPU_MIPS32_R6
1499 bool "MIPS32 Release 6"
1500 depends on SYS_HAS_CPU_MIPS32_R6
1501 select CPU_HAS_PREFETCH
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_HIGHMEM
1504 select CPU_SUPPORTS_MSA
1506 select MIPS_O32_FP64_SUPPORT
1508 Choose this option to build a kernel for release 6 or later of the
1509 MIPS32 architecture. New MIPS processors, starting with the Warrior
1510 family, are based on a MIPS32r6 processor. If you own an older
1511 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1513 config CPU_MIPS64_R1
1514 bool "MIPS64 Release 1"
1515 depends on SYS_HAS_CPU_MIPS64_R1
1516 select CPU_HAS_PREFETCH
1517 select CPU_HAS_LOAD_STORE_LR
1518 select CPU_SUPPORTS_32BIT_KERNEL
1519 select CPU_SUPPORTS_64BIT_KERNEL
1520 select CPU_SUPPORTS_HIGHMEM
1521 select CPU_SUPPORTS_HUGEPAGES
1523 Choose this option to build a kernel for release 1 or later of the
1524 MIPS64 architecture. Many modern embedded systems with a 64-bit
1525 MIPS processor are based on a MIPS64 processor. If you know the
1526 specific type of processor in your system, choose those that one
1527 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1528 Release 2 of the MIPS64 architecture is available since several
1529 years so chances are you even have a MIPS64 Release 2 processor
1530 in which case you should choose CPU_MIPS64_R2 instead for better
1533 config CPU_MIPS64_R2
1534 bool "MIPS64 Release 2"
1535 depends on SYS_HAS_CPU_MIPS64_R2
1536 select CPU_HAS_PREFETCH
1537 select CPU_HAS_LOAD_STORE_LR
1538 select CPU_SUPPORTS_32BIT_KERNEL
1539 select CPU_SUPPORTS_64BIT_KERNEL
1540 select CPU_SUPPORTS_HIGHMEM
1541 select CPU_SUPPORTS_HUGEPAGES
1542 select CPU_SUPPORTS_MSA
1545 Choose this option to build a kernel for release 2 or later of the
1546 MIPS64 architecture. Many modern embedded systems with a 64-bit
1547 MIPS processor are based on a MIPS64 processor. If you know the
1548 specific type of processor in your system, choose those that one
1549 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1551 config CPU_MIPS64_R6
1552 bool "MIPS64 Release 6"
1553 depends on SYS_HAS_CPU_MIPS64_R6
1554 select CPU_HAS_PREFETCH
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select CPU_SUPPORTS_64BIT_KERNEL
1557 select CPU_SUPPORTS_HIGHMEM
1558 select CPU_SUPPORTS_HUGEPAGES
1559 select CPU_SUPPORTS_MSA
1560 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1563 Choose this option to build a kernel for release 6 or later of the
1564 MIPS64 architecture. New MIPS processors, starting with the Warrior
1565 family, are based on a MIPS64r6 processor. If you own an older
1566 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1570 depends on SYS_HAS_CPU_R3000
1572 select CPU_HAS_LOAD_STORE_LR
1573 select CPU_SUPPORTS_32BIT_KERNEL
1574 select CPU_SUPPORTS_HIGHMEM
1576 Please make sure to pick the right CPU type. Linux/MIPS is not
1577 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1578 *not* work on R4000 machines and vice versa. However, since most
1579 of the supported machines have an R4000 (or similar) CPU, R4x00
1580 might be a safe bet. If the resulting kernel does not work,
1581 try to recompile with R3000.
1585 depends on SYS_HAS_CPU_TX39XX
1586 select CPU_SUPPORTS_32BIT_KERNEL
1587 select CPU_HAS_LOAD_STORE_LR
1591 depends on SYS_HAS_CPU_VR41XX
1592 select CPU_SUPPORTS_32BIT_KERNEL
1593 select CPU_SUPPORTS_64BIT_KERNEL
1594 select CPU_HAS_LOAD_STORE_LR
1596 The options selects support for the NEC VR4100 series of processors.
1597 Only choose this option if you have one of these processors as a
1598 kernel built with this option will not run on any other type of
1599 processor or vice versa.
1603 depends on SYS_HAS_CPU_R4300
1604 select CPU_SUPPORTS_32BIT_KERNEL
1605 select CPU_SUPPORTS_64BIT_KERNEL
1606 select CPU_HAS_LOAD_STORE_LR
1608 MIPS Technologies R4300-series processors.
1612 depends on SYS_HAS_CPU_R4X00
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_SUPPORTS_HUGEPAGES
1616 select CPU_HAS_LOAD_STORE_LR
1618 MIPS Technologies R4000-series processors other than 4300, including
1619 the R4000, R4400, R4600, and 4700.
1623 depends on SYS_HAS_CPU_TX49XX
1624 select CPU_HAS_PREFETCH
1625 select CPU_HAS_LOAD_STORE_LR
1626 select CPU_SUPPORTS_32BIT_KERNEL
1627 select CPU_SUPPORTS_64BIT_KERNEL
1628 select CPU_SUPPORTS_HUGEPAGES
1632 depends on SYS_HAS_CPU_R5000
1633 select CPU_SUPPORTS_32BIT_KERNEL
1634 select CPU_SUPPORTS_64BIT_KERNEL
1635 select CPU_SUPPORTS_HUGEPAGES
1636 select CPU_HAS_LOAD_STORE_LR
1638 MIPS Technologies R5000-series processors other than the Nevada.
1642 depends on SYS_HAS_CPU_R5432
1643 select CPU_SUPPORTS_32BIT_KERNEL
1644 select CPU_SUPPORTS_64BIT_KERNEL
1645 select CPU_SUPPORTS_HUGEPAGES
1646 select CPU_HAS_LOAD_STORE_LR
1650 depends on SYS_HAS_CPU_R5500
1651 select CPU_SUPPORTS_32BIT_KERNEL
1652 select CPU_SUPPORTS_64BIT_KERNEL
1653 select CPU_SUPPORTS_HUGEPAGES
1654 select CPU_HAS_LOAD_STORE_LR
1656 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1661 depends on SYS_HAS_CPU_NEVADA
1662 select CPU_SUPPORTS_32BIT_KERNEL
1663 select CPU_SUPPORTS_64BIT_KERNEL
1664 select CPU_SUPPORTS_HUGEPAGES
1665 select CPU_HAS_LOAD_STORE_LR
1667 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1671 depends on SYS_HAS_CPU_R8000
1672 select CPU_HAS_PREFETCH
1673 select CPU_HAS_LOAD_STORE_LR
1674 select CPU_SUPPORTS_64BIT_KERNEL
1676 MIPS Technologies R8000 processors. Note these processors are
1677 uncommon and the support for them is incomplete.
1681 depends on SYS_HAS_CPU_R10000
1682 select CPU_HAS_PREFETCH
1683 select CPU_HAS_LOAD_STORE_LR
1684 select CPU_SUPPORTS_32BIT_KERNEL
1685 select CPU_SUPPORTS_64BIT_KERNEL
1686 select CPU_SUPPORTS_HIGHMEM
1687 select CPU_SUPPORTS_HUGEPAGES
1689 MIPS Technologies R10000-series processors.
1693 depends on SYS_HAS_CPU_RM7000
1694 select CPU_HAS_PREFETCH
1695 select CPU_HAS_LOAD_STORE_LR
1696 select CPU_SUPPORTS_32BIT_KERNEL
1697 select CPU_SUPPORTS_64BIT_KERNEL
1698 select CPU_SUPPORTS_HIGHMEM
1699 select CPU_SUPPORTS_HUGEPAGES
1703 depends on SYS_HAS_CPU_SB1
1704 select CPU_HAS_LOAD_STORE_LR
1705 select CPU_SUPPORTS_32BIT_KERNEL
1706 select CPU_SUPPORTS_64BIT_KERNEL
1707 select CPU_SUPPORTS_HIGHMEM
1708 select CPU_SUPPORTS_HUGEPAGES
1709 select WEAK_ORDERING
1711 config CPU_CAVIUM_OCTEON
1712 bool "Cavium Octeon processor"
1713 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1714 select CPU_HAS_PREFETCH
1715 select CPU_HAS_LOAD_STORE_LR
1716 select CPU_SUPPORTS_64BIT_KERNEL
1717 select WEAK_ORDERING
1718 select CPU_SUPPORTS_HIGHMEM
1719 select CPU_SUPPORTS_HUGEPAGES
1720 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1721 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1722 select MIPS_L1_CACHE_SHIFT_7
1725 The Cavium Octeon processor is a highly integrated chip containing
1726 many ethernet hardware widgets for networking tasks. The processor
1727 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1728 Full details can be found at http://www.caviumnetworks.com.
1731 bool "Broadcom BMIPS"
1732 depends on SYS_HAS_CPU_BMIPS
1734 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1735 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1736 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1737 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1738 select CPU_SUPPORTS_32BIT_KERNEL
1739 select DMA_NONCOHERENT
1741 select SWAP_IO_SPACE
1742 select WEAK_ORDERING
1743 select CPU_SUPPORTS_HIGHMEM
1744 select CPU_HAS_PREFETCH
1745 select CPU_HAS_LOAD_STORE_LR
1746 select CPU_SUPPORTS_CPUFREQ
1747 select MIPS_EXTERNAL_TIMER
1749 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1752 bool "Netlogic XLR SoC"
1753 depends on SYS_HAS_CPU_XLR
1754 select CPU_HAS_LOAD_STORE_LR
1755 select CPU_SUPPORTS_32BIT_KERNEL
1756 select CPU_SUPPORTS_64BIT_KERNEL
1757 select CPU_SUPPORTS_HIGHMEM
1758 select CPU_SUPPORTS_HUGEPAGES
1759 select WEAK_ORDERING
1760 select WEAK_REORDERING_BEYOND_LLSC
1762 Netlogic Microsystems XLR/XLS processors.
1765 bool "Netlogic XLP SoC"
1766 depends on SYS_HAS_CPU_XLP
1767 select CPU_SUPPORTS_32BIT_KERNEL
1768 select CPU_SUPPORTS_64BIT_KERNEL
1769 select CPU_SUPPORTS_HIGHMEM
1770 select WEAK_ORDERING
1771 select WEAK_REORDERING_BEYOND_LLSC
1772 select CPU_HAS_PREFETCH
1773 select CPU_HAS_LOAD_STORE_LR
1775 select CPU_SUPPORTS_HUGEPAGES
1776 select MIPS_ASID_BITS_VARIABLE
1778 Netlogic Microsystems XLP processors.
1781 config CPU_MIPS32_3_5_FEATURES
1782 bool "MIPS32 Release 3.5 Features"
1783 depends on SYS_HAS_CPU_MIPS32_R3_5
1784 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1786 Choose this option to build a kernel for release 2 or later of the
1787 MIPS32 architecture including features from the 3.5 release such as
1788 support for Enhanced Virtual Addressing (EVA).
1790 config CPU_MIPS32_3_5_EVA
1791 bool "Enhanced Virtual Addressing (EVA)"
1792 depends on CPU_MIPS32_3_5_FEATURES
1796 Choose this option if you want to enable the Enhanced Virtual
1797 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1798 One of its primary benefits is an increase in the maximum size
1799 of lowmem (up to 3GB). If unsure, say 'N' here.
1801 config CPU_MIPS32_R5_FEATURES
1802 bool "MIPS32 Release 5 Features"
1803 depends on SYS_HAS_CPU_MIPS32_R5
1804 depends on CPU_MIPS32_R2
1806 Choose this option to build a kernel for release 2 or later of the
1807 MIPS32 architecture including features from release 5 such as
1808 support for Extended Physical Addressing (XPA).
1810 config CPU_MIPS32_R5_XPA
1811 bool "Extended Physical Addressing (XPA)"
1812 depends on CPU_MIPS32_R5_FEATURES
1814 depends on !PAGE_SIZE_4KB
1815 depends on SYS_SUPPORTS_HIGHMEM
1818 select PHYS_ADDR_T_64BIT
1821 Choose this option if you want to enable the Extended Physical
1822 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1823 benefit is to increase physical addressing equal to or greater
1824 than 40 bits. Note that this has the side effect of turning on
1825 64-bit addressing which in turn makes the PTEs 64-bit in size.
1826 If unsure, say 'N' here.
1829 config CPU_NOP_WORKAROUNDS
1832 config CPU_JUMP_WORKAROUNDS
1835 config CPU_LOONGSON2F_WORKAROUNDS
1836 bool "Loongson 2F Workarounds"
1838 select CPU_NOP_WORKAROUNDS
1839 select CPU_JUMP_WORKAROUNDS
1841 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1842 require workarounds. Without workarounds the system may hang
1843 unexpectedly. For more information please refer to the gas
1844 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1846 Loongson 2F03 and later have fixed these issues and no workarounds
1847 are needed. The workarounds have no significant side effect on them
1848 but may decrease the performance of the system so this option should
1849 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1852 If unsure, please say Y.
1853 endif # CPU_LOONGSON2F
1855 config SYS_SUPPORTS_ZBOOT
1857 select HAVE_KERNEL_GZIP
1858 select HAVE_KERNEL_BZIP2
1859 select HAVE_KERNEL_LZ4
1860 select HAVE_KERNEL_LZMA
1861 select HAVE_KERNEL_LZO
1862 select HAVE_KERNEL_XZ
1864 config SYS_SUPPORTS_ZBOOT_UART16550
1866 select SYS_SUPPORTS_ZBOOT
1868 config SYS_SUPPORTS_ZBOOT_UART_PROM
1870 select SYS_SUPPORTS_ZBOOT
1872 config CPU_LOONGSON2
1874 select CPU_SUPPORTS_32BIT_KERNEL
1875 select CPU_SUPPORTS_64BIT_KERNEL
1876 select CPU_SUPPORTS_HIGHMEM
1877 select CPU_SUPPORTS_HUGEPAGES
1878 select ARCH_HAS_PHYS_TO_DMA
1879 select CPU_HAS_LOAD_STORE_LR
1881 config CPU_LOONGSON1
1885 select CPU_HAS_PREFETCH
1886 select CPU_HAS_LOAD_STORE_LR
1887 select CPU_SUPPORTS_32BIT_KERNEL
1888 select CPU_SUPPORTS_HIGHMEM
1889 select CPU_SUPPORTS_CPUFREQ
1891 config CPU_BMIPS32_3300
1892 select SMP_UP if SMP
1895 config CPU_BMIPS4350
1897 select SYS_SUPPORTS_SMP
1898 select SYS_SUPPORTS_HOTPLUG_CPU
1900 config CPU_BMIPS4380
1902 select MIPS_L1_CACHE_SHIFT_6
1903 select SYS_SUPPORTS_SMP
1904 select SYS_SUPPORTS_HOTPLUG_CPU
1907 config CPU_BMIPS5000
1909 select MIPS_CPU_SCACHE
1910 select MIPS_L1_CACHE_SHIFT_7
1911 select SYS_SUPPORTS_SMP
1912 select SYS_SUPPORTS_HOTPLUG_CPU
1915 config SYS_HAS_CPU_LOONGSON3
1917 select CPU_SUPPORTS_CPUFREQ
1920 config SYS_HAS_CPU_LOONGSON2E
1923 config SYS_HAS_CPU_LOONGSON2F
1925 select CPU_SUPPORTS_CPUFREQ
1926 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1927 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1929 config SYS_HAS_CPU_LOONGSON1B
1932 config SYS_HAS_CPU_LOONGSON1C
1935 config SYS_HAS_CPU_MIPS32_R1
1938 config SYS_HAS_CPU_MIPS32_R2
1941 config SYS_HAS_CPU_MIPS32_R3_5
1944 config SYS_HAS_CPU_MIPS32_R5
1946 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1948 config SYS_HAS_CPU_MIPS32_R6
1950 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1952 config SYS_HAS_CPU_MIPS64_R1
1955 config SYS_HAS_CPU_MIPS64_R2
1958 config SYS_HAS_CPU_MIPS64_R6
1960 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1962 config SYS_HAS_CPU_R3000
1965 config SYS_HAS_CPU_TX39XX
1968 config SYS_HAS_CPU_VR41XX
1971 config SYS_HAS_CPU_R4300
1974 config SYS_HAS_CPU_R4X00
1977 config SYS_HAS_CPU_TX49XX
1980 config SYS_HAS_CPU_R5000
1983 config SYS_HAS_CPU_R5432
1986 config SYS_HAS_CPU_R5500
1989 config SYS_HAS_CPU_NEVADA
1992 config SYS_HAS_CPU_R8000
1995 config SYS_HAS_CPU_R10000
1997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1999 config SYS_HAS_CPU_RM7000
2002 config SYS_HAS_CPU_SB1
2005 config SYS_HAS_CPU_CAVIUM_OCTEON
2008 config SYS_HAS_CPU_BMIPS
2011 config SYS_HAS_CPU_BMIPS32_3300
2013 select SYS_HAS_CPU_BMIPS
2015 config SYS_HAS_CPU_BMIPS4350
2017 select SYS_HAS_CPU_BMIPS
2019 config SYS_HAS_CPU_BMIPS4380
2021 select SYS_HAS_CPU_BMIPS
2023 config SYS_HAS_CPU_BMIPS5000
2025 select SYS_HAS_CPU_BMIPS
2026 select ARCH_HAS_SYNC_DMA_FOR_CPU
2028 config SYS_HAS_CPU_XLR
2031 config SYS_HAS_CPU_XLP
2035 # CPU may reorder R->R, R->W, W->R, W->W
2036 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2038 config WEAK_ORDERING
2042 # CPU may reorder reads and writes beyond LL/SC
2043 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2045 config WEAK_REORDERING_BEYOND_LLSC
2050 # These two indicate any level of the MIPS32 and MIPS64 architecture
2054 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2058 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2061 # These indicate the revision of the architecture
2065 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2069 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2075 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2077 select HAVE_ARCH_BITREVERSE
2078 select MIPS_ASID_BITS_VARIABLE
2079 select MIPS_CRC_SUPPORT
2082 config TARGET_ISA_REV
2084 default 1 if CPU_MIPSR1
2085 default 2 if CPU_MIPSR2
2086 default 6 if CPU_MIPSR6
2089 Reflects the ISA revision being targeted by the kernel build. This
2090 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2098 config SYS_SUPPORTS_32BIT_KERNEL
2100 config SYS_SUPPORTS_64BIT_KERNEL
2102 config CPU_SUPPORTS_32BIT_KERNEL
2104 config CPU_SUPPORTS_64BIT_KERNEL
2106 config CPU_SUPPORTS_CPUFREQ
2108 config CPU_SUPPORTS_ADDRWINCFG
2110 config CPU_SUPPORTS_HUGEPAGES
2112 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2114 config MIPS_PGD_C0_CONTEXT
2116 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2119 # Set to y for ptrace access to watch registers.
2121 config HARDWARE_WATCHPOINTS
2123 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2128 prompt "Kernel code model"
2130 You should only select this option if you have a workload that
2131 actually benefits from 64-bit processing or if your machine has
2132 large memory. You will only be presented a single option in this
2133 menu if your system does not support both 32-bit and 64-bit kernels.
2136 bool "32-bit kernel"
2137 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2140 Select this option if you want to build a 32-bit kernel.
2143 bool "64-bit kernel"
2144 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2146 Select this option if you want to build a 64-bit kernel.
2151 bool "KVM Guest Kernel"
2152 depends on BROKEN_ON_SMP
2154 Select this option if building a guest kernel for KVM (Trap & Emulate)
2157 config KVM_GUEST_TIMER_FREQ
2158 int "Count/Compare Timer Frequency (MHz)"
2159 depends on KVM_GUEST
2162 Set this to non-zero if building a guest kernel for KVM to skip RTC
2163 emulation when determining guest CPU Frequency. Instead, the guest's
2164 timer frequency is specified directly.
2166 config MIPS_VA_BITS_48
2167 bool "48 bits virtual memory"
2170 Support a maximum at least 48 bits of application virtual
2171 memory. Default is 40 bits or less, depending on the CPU.
2172 For page sizes 16k and above, this option results in a small
2173 memory overhead for page tables. For 4k page size, a fourth
2174 level of page tables is added which imposes both a memory
2175 overhead as well as slower TLB fault handling.
2180 prompt "Kernel page size"
2181 default PAGE_SIZE_4KB
2183 config PAGE_SIZE_4KB
2185 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2187 This option select the standard 4kB Linux page size. On some
2188 R3000-family processors this is the only available page size. Using
2189 4kB page size will minimize memory consumption and is therefore
2190 recommended for low memory systems.
2192 config PAGE_SIZE_8KB
2194 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2195 depends on !MIPS_VA_BITS_48
2197 Using 8kB page size will result in higher performance kernel at
2198 the price of higher memory consumption. This option is available
2199 only on R8000 and cnMIPS processors. Note that you will need a
2200 suitable Linux distribution to support this.
2202 config PAGE_SIZE_16KB
2204 depends on !CPU_R3000 && !CPU_TX39XX
2206 Using 16kB page size will result in higher performance kernel at
2207 the price of higher memory consumption. This option is available on
2208 all non-R3000 family processors. Note that you will need a suitable
2209 Linux distribution to support this.
2211 config PAGE_SIZE_32KB
2213 depends on CPU_CAVIUM_OCTEON
2214 depends on !MIPS_VA_BITS_48
2216 Using 32kB page size will result in higher performance kernel at
2217 the price of higher memory consumption. This option is available
2218 only on cnMIPS cores. Note that you will need a suitable Linux
2219 distribution to support this.
2221 config PAGE_SIZE_64KB
2223 depends on !CPU_R3000 && !CPU_TX39XX
2225 Using 64kB page size will result in higher performance kernel at
2226 the price of higher memory consumption. This option is available on
2227 all non-R3000 family processor. Not that at the time of this
2228 writing this option is still high experimental.
2232 config FORCE_MAX_ZONEORDER
2233 int "Maximum zone order"
2234 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2235 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2236 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2237 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2238 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2239 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2243 The kernel memory allocator divides physically contiguous memory
2244 blocks into "zones", where each zone is a power of two number of
2245 pages. This option selects the largest power of two that the kernel
2246 keeps in the memory allocator. If you need to allocate very large
2247 blocks of physically contiguous memory, then you may need to
2248 increase this value.
2250 This config option is actually maximum order plus one. For example,
2251 a value of 11 means that the largest free memory block is 2^10 pages.
2253 The page size is not necessarily 4KB. Keep this in mind
2254 when choosing a value for this option.
2259 config IP22_CPU_SCACHE
2264 # Support for a MIPS32 / MIPS64 style S-caches
2266 config MIPS_CPU_SCACHE
2270 config R5000_CPU_SCACHE
2274 config RM7000_CPU_SCACHE
2278 config SIBYTE_DMA_PAGEOPS
2279 bool "Use DMA to clear/copy pages"
2282 Instead of using the CPU to zero and copy pages, use a Data Mover
2283 channel. These DMA channels are otherwise unused by the standard
2284 SiByte Linux port. Seems to give a small performance benefit.
2286 config CPU_HAS_PREFETCH
2289 config CPU_GENERIC_DUMP_TLB
2291 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2293 config MIPS_FP_SUPPORT
2294 bool "Floating Point support" if EXPERT
2297 Select y to include support for floating point in the kernel
2298 including initialization of FPU hardware, FP context save & restore
2299 and emulation of an FPU where necessary. Without this support any
2300 userland program attempting to use floating point instructions will
2303 If you know that your userland will not attempt to use floating point
2304 instructions then you can say n here to shrink the kernel a little.
2308 config CPU_R2300_FPU
2310 depends on MIPS_FP_SUPPORT
2311 default y if CPU_R3000 || CPU_TX39XX
2315 depends on MIPS_FP_SUPPORT
2316 default y if !CPU_R2300_FPU
2318 config CPU_R4K_CACHE_TLB
2320 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2323 bool "MIPS MT SMP support (1 TC on each available VPE)"
2325 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2326 select CPU_MIPSR2_IRQ_VI
2327 select CPU_MIPSR2_IRQ_EI
2332 select SYS_SUPPORTS_SMP
2333 select SYS_SUPPORTS_SCHED_SMT
2334 select MIPS_PERF_SHARED_TC_COUNTERS
2336 This is a kernel model which is known as SMVP. This is supported
2337 on cores with the MT ASE and uses the available VPEs to implement
2338 virtual processors which supports SMP. This is equivalent to the
2339 Intel Hyperthreading feature. For further information go to
2340 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2346 bool "SMT (multithreading) scheduler support"
2347 depends on SYS_SUPPORTS_SCHED_SMT
2350 SMT scheduler support improves the CPU scheduler's decision making
2351 when dealing with MIPS MT enabled cores at a cost of slightly
2352 increased overhead in some places. If unsure say N here.
2354 config SYS_SUPPORTS_SCHED_SMT
2357 config SYS_SUPPORTS_MULTITHREADING
2360 config MIPS_MT_FPAFF
2361 bool "Dynamic FPU affinity for FP-intensive threads"
2363 depends on MIPS_MT_SMP
2365 config MIPSR2_TO_R6_EMULATOR
2366 bool "MIPS R2-to-R6 emulator"
2367 depends on CPU_MIPSR6
2368 depends on MIPS_FP_SUPPORT
2371 Choose this option if you want to run non-R6 MIPS userland code.
2372 Even if you say 'Y' here, the emulator will still be disabled by
2373 default. You can enable it using the 'mipsr2emu' kernel option.
2374 The only reason this is a build-time option is to save ~14K from the
2377 config SYS_SUPPORTS_VPE_LOADER
2379 depends on SYS_SUPPORTS_MULTITHREADING
2381 Indicates that the platform supports the VPE loader, and provides
2384 config MIPS_VPE_LOADER
2385 bool "VPE loader support."
2386 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2387 select CPU_MIPSR2_IRQ_VI
2388 select CPU_MIPSR2_IRQ_EI
2391 Includes a loader for loading an elf relocatable object
2392 onto another VPE and running it.
2394 config MIPS_VPE_LOADER_CMP
2397 depends on MIPS_VPE_LOADER && MIPS_CMP
2399 config MIPS_VPE_LOADER_MT
2402 depends on MIPS_VPE_LOADER && !MIPS_CMP
2404 config MIPS_VPE_LOADER_TOM
2405 bool "Load VPE program into memory hidden from linux"
2406 depends on MIPS_VPE_LOADER
2409 The loader can use memory that is present but has been hidden from
2410 Linux using the kernel command line option "mem=xxMB". It's up to
2411 you to ensure the amount you put in the option and the space your
2412 program requires is less or equal to the amount physically present.
2414 config MIPS_VPE_APSP_API
2415 bool "Enable support for AP/SP API (RTLX)"
2416 depends on MIPS_VPE_LOADER
2418 config MIPS_VPE_APSP_API_CMP
2421 depends on MIPS_VPE_APSP_API && MIPS_CMP
2423 config MIPS_VPE_APSP_API_MT
2426 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2429 bool "MIPS CMP framework support (DEPRECATED)"
2430 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2433 select SYS_SUPPORTS_SMP
2434 select WEAK_ORDERING
2437 Select this if you are using a bootloader which implements the "CMP
2438 framework" protocol (ie. YAMON) and want your kernel to make use of
2439 its ability to start secondary CPUs.
2441 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2445 bool "MIPS Coherent Processing System support"
2446 depends on SYS_SUPPORTS_MIPS_CPS
2448 select MIPS_CPS_PM if HOTPLUG_CPU
2450 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2451 select SYS_SUPPORTS_HOTPLUG_CPU
2452 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2453 select SYS_SUPPORTS_SMP
2454 select WEAK_ORDERING
2456 Select this if you wish to run an SMP kernel across multiple cores
2457 within a MIPS Coherent Processing System. When this option is
2458 enabled the kernel will probe for other cores and boot them with
2459 no external assistance. It is safe to enable this when hardware
2460 support is unavailable.
2473 config SB1_PASS_2_WORKAROUNDS
2475 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2478 config SB1_PASS_2_1_WORKAROUNDS
2480 depends on CPU_SB1 && CPU_SB1_PASS_2
2484 prompt "SmartMIPS or microMIPS ASE support"
2486 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2489 Select this if you want neither microMIPS nor SmartMIPS support
2491 config CPU_HAS_SMARTMIPS
2492 depends on SYS_SUPPORTS_SMARTMIPS
2495 SmartMIPS is a extension of the MIPS32 architecture aimed at
2496 increased security at both hardware and software level for
2497 smartcards. Enabling this option will allow proper use of the
2498 SmartMIPS instructions by Linux applications. However a kernel with
2499 this option will not work on a MIPS core without SmartMIPS core. If
2500 you don't know you probably don't have SmartMIPS and should say N
2503 config CPU_MICROMIPS
2504 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2507 When this option is enabled the kernel will be built using the
2513 bool "Support for the MIPS SIMD Architecture"
2514 depends on CPU_SUPPORTS_MSA
2515 depends on MIPS_FP_SUPPORT
2516 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2518 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2519 and a set of SIMD instructions to operate on them. When this option
2520 is enabled the kernel will support allocating & switching MSA
2521 vector register contexts. If you know that your kernel will only be
2522 running on CPUs which do not support MSA or that your userland will
2523 not be making use of it then you may wish to say N here to reduce
2524 the size & complexity of your kernel.
2537 config CPU_HAS_LOAD_STORE_LR
2540 CPU has support for unaligned load and store instructions:
2541 LWL, LWR, SWL, SWR (Load/store word left/right).
2542 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2545 # Vectored interrupt mode is an R2 feature
2547 config CPU_MIPSR2_IRQ_VI
2551 # Extended interrupt mode is an R2 feature
2553 config CPU_MIPSR2_IRQ_EI
2558 depends on !CPU_R3000
2564 config CPU_DADDI_WORKAROUNDS
2567 config CPU_R4000_WORKAROUNDS
2569 select CPU_R4400_WORKAROUNDS
2571 config CPU_R4400_WORKAROUNDS
2574 config MIPS_ASID_SHIFT
2576 default 6 if CPU_R3000 || CPU_TX39XX
2577 default 4 if CPU_R8000
2580 config MIPS_ASID_BITS
2582 default 0 if MIPS_ASID_BITS_VARIABLE
2583 default 6 if CPU_R3000 || CPU_TX39XX
2586 config MIPS_ASID_BITS_VARIABLE
2589 config MIPS_CRC_SUPPORT
2593 # - Highmem only makes sense for the 32-bit kernel.
2594 # - The current highmem code will only work properly on physically indexed
2595 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2596 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2597 # moment we protect the user and offer the highmem option only on machines
2598 # where it's known to be safe. This will not offer highmem on a few systems
2599 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2600 # indexed CPUs but we're playing safe.
2601 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2602 # know they might have memory configurations that could make use of highmem
2606 bool "High Memory Support"
2607 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2609 config CPU_SUPPORTS_HIGHMEM
2612 config SYS_SUPPORTS_HIGHMEM
2615 config SYS_SUPPORTS_SMARTMIPS
2618 config SYS_SUPPORTS_MICROMIPS
2621 config SYS_SUPPORTS_MIPS16
2624 This option must be set if a kernel might be executed on a MIPS16-
2625 enabled CPU even if MIPS16 is not actually being used. In other
2626 words, it makes the kernel MIPS16-tolerant.
2628 config CPU_SUPPORTS_MSA
2631 config ARCH_FLATMEM_ENABLE
2633 depends on !NUMA && !CPU_LOONGSON2
2635 config ARCH_DISCONTIGMEM_ENABLE
2637 default y if SGI_IP27
2639 Say Y to support efficient handling of discontiguous physical memory,
2640 for architectures which are either NUMA (Non-Uniform Memory Access)
2641 or have huge holes in the physical address space for other reasons.
2642 See <file:Documentation/vm/numa.rst> for more.
2644 config ARCH_SPARSEMEM_ENABLE
2646 select SPARSEMEM_STATIC
2650 depends on SYS_SUPPORTS_NUMA
2652 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2653 Access). This option improves performance on systems with more
2654 than two nodes; on two node systems it is generally better to
2655 leave it disabled; on single node systems disable this option
2658 config SYS_SUPPORTS_NUMA
2662 bool "Relocatable kernel"
2663 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2665 This builds a kernel image that retains relocation information
2666 so it can be loaded someplace besides the default 1MB.
2667 The relocations make the kernel binary about 15% larger,
2668 but are discarded at runtime
2670 config RELOCATION_TABLE_SIZE
2671 hex "Relocation table size"
2672 depends on RELOCATABLE
2673 range 0x0 0x01000000
2674 default "0x00100000"
2676 A table of relocation data will be appended to the kernel binary
2677 and parsed at boot to fix up the relocated kernel.
2679 This option allows the amount of space reserved for the table to be
2680 adjusted, although the default of 1Mb should be ok in most cases.
2682 The build will fail and a valid size suggested if this is too small.
2684 If unsure, leave at the default value.
2686 config RANDOMIZE_BASE
2687 bool "Randomize the address of the kernel image"
2688 depends on RELOCATABLE
2690 Randomizes the physical and virtual address at which the
2691 kernel image is loaded, as a security feature that
2692 deters exploit attempts relying on knowledge of the location
2693 of kernel internals.
2695 Entropy is generated using any coprocessor 0 registers available.
2697 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2701 config RANDOMIZE_BASE_MAX_OFFSET
2702 hex "Maximum kASLR offset" if EXPERT
2703 depends on RANDOMIZE_BASE
2704 range 0x0 0x40000000 if EVA || 64BIT
2705 range 0x0 0x08000000
2706 default "0x01000000"
2708 When kASLR is active, this provides the maximum offset that will
2709 be applied to the kernel image. It should be set according to the
2710 amount of physical RAM available in the target system minus
2711 PHYSICAL_START and must be a power of 2.
2713 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2714 EVA or 64-bit. The default is 16Mb.
2719 depends on NEED_MULTIPLE_NODES
2721 config HW_PERF_EVENTS
2722 bool "Enable hardware performance counter support for perf events"
2723 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2726 Enable hardware performance counter support for perf events. If
2727 disabled, perf events will use software events only.
2730 bool "Multi-Processing support"
2731 depends on SYS_SUPPORTS_SMP
2733 This enables support for systems with more than one CPU. If you have
2734 a system with only one CPU, say N. If you have a system with more
2735 than one CPU, say Y.
2737 If you say N here, the kernel will run on uni- and multiprocessor
2738 machines, but will use only one CPU of a multiprocessor machine. If
2739 you say Y here, the kernel will run on many, but not all,
2740 uniprocessor machines. On a uniprocessor machine, the kernel
2741 will run faster if you say N here.
2743 People using multiprocessor machines who say Y here should also say
2744 Y to "Enhanced Real Time Clock Support", below.
2746 See also the SMP-HOWTO available at
2747 <http://www.tldp.org/docs.html#howto>.
2749 If you don't know what to do here, say N.
2752 bool "Support for hot-pluggable CPUs"
2753 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2755 Say Y here to allow turning CPUs off and on. CPUs can be
2756 controlled through /sys/devices/system/cpu.
2757 (Note: power management support will enable this option
2758 automatically on SMP systems. )
2759 Say N if you want to disable CPU hotplug.
2764 config SYS_SUPPORTS_MIPS_CMP
2767 config SYS_SUPPORTS_MIPS_CPS
2770 config SYS_SUPPORTS_SMP
2773 config NR_CPUS_DEFAULT_4
2776 config NR_CPUS_DEFAULT_8
2779 config NR_CPUS_DEFAULT_16
2782 config NR_CPUS_DEFAULT_32
2785 config NR_CPUS_DEFAULT_64
2789 int "Maximum number of CPUs (2-256)"
2792 default "4" if NR_CPUS_DEFAULT_4
2793 default "8" if NR_CPUS_DEFAULT_8
2794 default "16" if NR_CPUS_DEFAULT_16
2795 default "32" if NR_CPUS_DEFAULT_32
2796 default "64" if NR_CPUS_DEFAULT_64
2798 This allows you to specify the maximum number of CPUs which this
2799 kernel will support. The maximum supported value is 32 for 32-bit
2800 kernel and 64 for 64-bit kernels; the minimum value which makes
2801 sense is 1 for Qemu (useful only for kernel debugging purposes)
2802 and 2 for all others.
2804 This is purely to save memory - each supported CPU adds
2805 approximately eight kilobytes to the kernel image. For best
2806 performance should round up your number of processors to the next
2809 config MIPS_PERF_SHARED_TC_COUNTERS
2812 config MIPS_NR_CPU_NR_MAP_1024
2815 config MIPS_NR_CPU_NR_MAP
2818 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2819 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2822 # Timer Interrupt Frequency Configuration
2826 prompt "Timer frequency"
2829 Allows the configuration of the timer frequency.
2832 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2835 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2838 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2841 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2844 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2847 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2850 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2853 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2857 config SYS_SUPPORTS_24HZ
2860 config SYS_SUPPORTS_48HZ
2863 config SYS_SUPPORTS_100HZ
2866 config SYS_SUPPORTS_128HZ
2869 config SYS_SUPPORTS_250HZ
2872 config SYS_SUPPORTS_256HZ
2875 config SYS_SUPPORTS_1000HZ
2878 config SYS_SUPPORTS_1024HZ
2881 config SYS_SUPPORTS_ARBIT_HZ
2883 default y if !SYS_SUPPORTS_24HZ && \
2884 !SYS_SUPPORTS_48HZ && \
2885 !SYS_SUPPORTS_100HZ && \
2886 !SYS_SUPPORTS_128HZ && \
2887 !SYS_SUPPORTS_250HZ && \
2888 !SYS_SUPPORTS_256HZ && \
2889 !SYS_SUPPORTS_1000HZ && \
2890 !SYS_SUPPORTS_1024HZ
2896 default 100 if HZ_100
2897 default 128 if HZ_128
2898 default 250 if HZ_250
2899 default 256 if HZ_256
2900 default 1000 if HZ_1000
2901 default 1024 if HZ_1024
2904 def_bool HIGH_RES_TIMERS
2907 bool "Kexec system call"
2910 kexec is a system call that implements the ability to shutdown your
2911 current kernel, and to start another kernel. It is like a reboot
2912 but it is independent of the system firmware. And like a reboot
2913 you can start any kernel with it, not just Linux.
2915 The name comes from the similarity to the exec system call.
2917 It is an ongoing process to be certain the hardware in a machine
2918 is properly shutdown, so do not be surprised if this code does not
2919 initially work for you. As of this writing the exact hardware
2920 interface is strongly in flux, so no good recommendation can be
2924 bool "Kernel crash dumps"
2926 Generate crash dump after being started by kexec.
2927 This should be normally only set in special crash dump kernels
2928 which are loaded in the main kernel with kexec-tools into
2929 a specially reserved region and then later executed after
2930 a crash by kdump/kexec. The crash dump kernel must be compiled
2931 to a memory address not used by the main kernel or firmware using
2934 config PHYSICAL_START
2935 hex "Physical address where the kernel is loaded"
2936 default "0xffffffff84000000"
2937 depends on CRASH_DUMP
2939 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2940 If you plan to use kernel for capturing the crash dump change
2941 this value to start of the reserved region (the "X" value as
2942 specified in the "crashkernel=YM@XM" command line boot parameter
2943 passed to the panic-ed kernel).
2946 bool "Enable seccomp to safely compute untrusted bytecode"
2950 This kernel feature is useful for number crunching applications
2951 that may need to compute untrusted bytecode during their
2952 execution. By using pipes or other transports made available to
2953 the process as file descriptors supporting the read/write
2954 syscalls, it's possible to isolate those applications in
2955 their own address space using seccomp. Once seccomp is
2956 enabled via /proc/<pid>/seccomp, it cannot be disabled
2957 and the task is only allowed to execute a few safe syscalls
2958 defined by each seccomp mode.
2960 If unsure, say Y. Only embedded should say N here.
2962 config MIPS_O32_FP64_SUPPORT
2963 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2964 depends on 32BIT || MIPS32_O32
2966 When this is enabled, the kernel will support use of 64-bit floating
2967 point registers with binaries using the O32 ABI along with the
2968 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2969 32-bit MIPS systems this support is at the cost of increasing the
2970 size and complexity of the compiled FPU emulator. Thus if you are
2971 running a MIPS32 system and know that none of your userland binaries
2972 will require 64-bit floating point, you may wish to reduce the size
2973 of your kernel & potentially improve FP emulation performance by
2976 Although binutils currently supports use of this flag the details
2977 concerning its effect upon the O32 ABI in userland are still being
2978 worked on. In order to avoid userland becoming dependant upon current
2979 behaviour before the details have been finalised, this option should
2980 be considered experimental and only enabled by those working upon
2988 select OF_EARLY_FLATTREE
2998 prompt "Kernel appended dtb support" if USE_OF
2999 default MIPS_NO_APPENDED_DTB
3001 config MIPS_NO_APPENDED_DTB
3004 Do not enable appended dtb support.
3006 config MIPS_ELF_APPENDED_DTB
3009 With this option, the boot code will look for a device tree binary
3010 DTB) included in the vmlinux ELF section .appended_dtb. By default
3011 it is empty and the DTB can be appended using binutils command
3014 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3016 This is meant as a backward compatiblity convenience for those
3017 systems with a bootloader that can't be upgraded to accommodate
3018 the documented boot protocol using a device tree.
3020 config MIPS_RAW_APPENDED_DTB
3021 bool "vmlinux.bin or vmlinuz.bin"
3023 With this option, the boot code will look for a device tree binary
3024 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3025 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3027 This is meant as a backward compatibility convenience for those
3028 systems with a bootloader that can't be upgraded to accommodate
3029 the documented boot protocol using a device tree.
3031 Beware that there is very little in terms of protection against
3032 this option being confused by leftover garbage in memory that might
3033 look like a DTB header after a reboot if no actual DTB is appended
3034 to vmlinux.bin. Do not leave this option active in a production kernel
3035 if you don't intend to always append a DTB.
3039 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3040 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3043 default MIPS_CMDLINE_FROM_BOOTLOADER
3045 config MIPS_CMDLINE_FROM_DTB
3047 bool "Dtb kernel arguments if available"
3049 config MIPS_CMDLINE_DTB_EXTEND
3051 bool "Extend dtb kernel arguments with bootloader arguments"
3053 config MIPS_CMDLINE_FROM_BOOTLOADER
3054 bool "Bootloader kernel arguments if available"
3056 config MIPS_CMDLINE_BUILTIN_EXTEND
3057 depends on CMDLINE_BOOL
3058 bool "Extend builtin kernel arguments with bootloader arguments"
3063 config LOCKDEP_SUPPORT
3067 config STACKTRACE_SUPPORT
3071 config HAVE_LATENCYTOP_SUPPORT
3075 config PGTABLE_LEVELS
3077 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3078 default 3 if 64BIT && !PAGE_SIZE_64KB
3081 config MIPS_AUTO_PFN_OFFSET
3084 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3086 config PCI_DRIVERS_GENERIC
3087 select PCI_DOMAINS_GENERIC if PCI
3090 config PCI_DRIVERS_LEGACY
3091 def_bool !PCI_DRIVERS_GENERIC
3092 select NO_GENERIC_PCI_IOPORT_MAP
3093 select PCI_DOMAINS if PCI
3096 # ISA support is now enabled via select. Too many systems still have the one
3097 # or other ISA chip on the board that users don't know about so don't expect
3098 # users to choose the right thing ...
3104 bool "TURBOchannel support"
3105 depends on MACH_DECSTATION
3107 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3108 processors. TURBOchannel programming specifications are available
3110 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3112 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3113 Linux driver support status is documented at:
3114 <http://www.linux-mips.org/wiki/DECstation>
3120 config ARCH_MMAP_RND_BITS_MIN
3124 config ARCH_MMAP_RND_BITS_MAX
3128 config ARCH_MMAP_RND_COMPAT_BITS_MIN
3131 config ARCH_MMAP_RND_COMPAT_BITS_MAX
3138 select MIPS_EXTERNAL_TIMER
3151 config MIPS32_COMPAT
3157 config SYSVIPC_COMPAT
3161 bool "Kernel support for o32 binaries"
3163 select ARCH_WANT_OLD_COMPAT_IPC
3165 select MIPS32_COMPAT
3166 select SYSVIPC_COMPAT if SYSVIPC
3168 Select this option if you want to run o32 binaries. These are pure
3169 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3170 existing binaries are in this format.
3175 bool "Kernel support for n32 binaries"
3177 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3179 select MIPS32_COMPAT
3180 select SYSVIPC_COMPAT if SYSVIPC
3182 Select this option if you want to run n32 binaries. These are
3183 64-bit binaries using 32-bit quantities for addressing and certain
3184 data that would normally be 64-bit. They are used in special
3191 default y if MIPS32_O32 || MIPS32_N32
3194 menu "Power management options"
3196 config ARCH_HIBERNATION_POSSIBLE
3198 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3200 config ARCH_SUSPEND_POSSIBLE
3202 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3204 source "kernel/power/Kconfig"
3208 config MIPS_EXTERNAL_TIMER
3211 menu "CPU Power Management"
3213 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3214 source "drivers/cpufreq/Kconfig"
3217 source "drivers/cpuidle/Kconfig"
3221 source "drivers/firmware/Kconfig"
3223 source "arch/mips/kvm/Kconfig"