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 ARCH_HAS_UNCACHED_SEGMENT
1125 select NEED_DMA_MAP_STATE
1126 select ARCH_HAS_DMA_COHERENT_TO_PFN
1127 select DMA_NONCOHERENT_CACHE_SYNC
1129 config SYS_HAS_EARLY_PRINTK
1132 config SYS_SUPPORTS_HOTPLUG_CPU
1135 config MIPS_BONITO64
1150 config NO_IOPORT_MAP
1155 default y if !CPU_HAS_LOAD_STORE_LR
1157 config GENERIC_ISA_DMA
1159 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1162 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1164 select GENERIC_ISA_DMA
1169 config HOLES_IN_ZONE
1172 config SYS_SUPPORTS_RELOCATABLE
1175 Selected if the platform supports relocating the kernel.
1176 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1177 to allow access to command line and entropy sources.
1179 config MIPS_CBPF_JIT
1181 depends on BPF_JIT && HAVE_CBPF_JIT
1183 config MIPS_EBPF_JIT
1185 depends on BPF_JIT && HAVE_EBPF_JIT
1189 # Endianness selection. Sufficiently obscure so many users don't know what to
1190 # answer,so we try hard to limit the available choices. Also the use of a
1191 # choice statement should be more obvious to the user.
1194 prompt "Endianness selection"
1196 Some MIPS machines can be configured for either little or big endian
1197 byte order. These modes require different kernels and a different
1198 Linux distribution. In general there is one preferred byteorder for a
1199 particular system but some systems are just as commonly used in the
1200 one or the other endianness.
1202 config CPU_BIG_ENDIAN
1204 depends on SYS_SUPPORTS_BIG_ENDIAN
1206 config CPU_LITTLE_ENDIAN
1207 bool "Little endian"
1208 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1215 config SYS_SUPPORTS_APM_EMULATION
1218 config SYS_SUPPORTS_BIG_ENDIAN
1221 config SYS_SUPPORTS_LITTLE_ENDIAN
1224 config SYS_SUPPORTS_HUGETLBFS
1226 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1229 config MIPS_HUGE_TLB_SUPPORT
1230 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1247 config PCI_GT64XXX_PCI0
1250 config PCI_XTALK_BRIDGE
1253 config NO_EXCEPT_FILL
1260 select DMA_NONCOHERENT
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
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
1288 config SWAP_IO_SPACE
1291 config SGI_HAS_INDYDOG
1303 config SGI_HAS_ZILOG
1306 config SGI_HAS_I8042
1309 config DEFAULT_SGI_PARTITION
1321 config MIPS_L1_CACHE_SHIFT_4
1324 config MIPS_L1_CACHE_SHIFT_5
1327 config MIPS_L1_CACHE_SHIFT_6
1330 config MIPS_L1_CACHE_SHIFT_7
1333 config MIPS_L1_CACHE_SHIFT
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
1341 config HAVE_STD_PC_SERIAL_PORT
1345 bool "ARC console support"
1346 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1350 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1355 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1364 menu "CPU selection"
1370 config 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
1385 The Loongson 3 processor implements the MIPS64R2 instruction
1386 set with many extensions.
1388 config LOONGSON3_ENHANCEMENT
1389 bool "New Loongson 3 CPU Enhancements"
1392 select CPU_HAS_PREFETCH
1393 depends on CPU_LOONGSON3
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.
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.
1406 config CPU_LOONGSON3_WORKAROUNDS
1407 bool "Old Loongson 3 LLSC Workarounds"
1409 depends on CPU_LOONGSON3
1411 Loongson 3 processors have the llsc issues which require workarounds.
1412 Without workarounds the system may hang unexpectedly.
1414 Newer Loongson 3 will fix these issues and no workarounds are needed.
1415 The workarounds have no significant side effect on them but may
1416 decrease the performance of the system so this option should be
1417 disabled unless the kernel is intended to be run on old systems.
1419 If unsure, please say Y.
1421 config CPU_LOONGSON2E
1423 depends on SYS_HAS_CPU_LOONGSON2E
1424 select CPU_LOONGSON2
1426 The Loongson 2E processor implements the MIPS III instruction set
1427 with many extensions.
1429 It has an internal FPGA northbridge, which is compatible to
1432 config CPU_LOONGSON2F
1434 depends on SYS_HAS_CPU_LOONGSON2F
1435 select CPU_LOONGSON2
1438 The Loongson 2F processor implements the MIPS III instruction set
1439 with many extensions.
1441 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1442 have a similar programming interface with FPGA northbridge used in
1445 config CPU_LOONGSON1B
1447 depends on SYS_HAS_CPU_LOONGSON1B
1448 select CPU_LOONGSON1
1449 select LEDS_GPIO_REGISTER
1451 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1452 Release 1 instruction set and part of the MIPS32 Release 2
1455 config CPU_LOONGSON1C
1457 depends on SYS_HAS_CPU_LOONGSON1C
1458 select CPU_LOONGSON1
1459 select LEDS_GPIO_REGISTER
1461 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1462 Release 1 instruction set and part of the MIPS32 Release 2
1465 config CPU_MIPS32_R1
1466 bool "MIPS32 Release 1"
1467 depends on SYS_HAS_CPU_MIPS32_R1
1468 select CPU_HAS_PREFETCH
1469 select CPU_HAS_LOAD_STORE_LR
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1473 Choose this option to build a kernel for release 1 or later of the
1474 MIPS32 architecture. Most modern embedded systems with a 32-bit
1475 MIPS processor are based on a MIPS32 processor. If you know the
1476 specific type of processor in your system, choose those that one
1477 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1478 Release 2 of the MIPS32 architecture is available since several
1479 years so chances are you even have a MIPS32 Release 2 processor
1480 in which case you should choose CPU_MIPS32_R2 instead for better
1483 config CPU_MIPS32_R2
1484 bool "MIPS32 Release 2"
1485 depends on SYS_HAS_CPU_MIPS32_R2
1486 select CPU_HAS_PREFETCH
1487 select CPU_HAS_LOAD_STORE_LR
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1490 select CPU_SUPPORTS_MSA
1493 Choose this option to build a kernel for release 2 or later of the
1494 MIPS32 architecture. Most modern embedded systems with a 32-bit
1495 MIPS processor are based on a MIPS32 processor. If you know the
1496 specific type of processor in your system, choose those that one
1497 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1499 config CPU_MIPS32_R6
1500 bool "MIPS32 Release 6"
1501 depends on SYS_HAS_CPU_MIPS32_R6
1502 select CPU_HAS_PREFETCH
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_MSA
1507 select MIPS_O32_FP64_SUPPORT
1509 Choose this option to build a kernel for release 6 or later of the
1510 MIPS32 architecture. New MIPS processors, starting with the Warrior
1511 family, are based on a MIPS32r6 processor. If you own an older
1512 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1514 config CPU_MIPS64_R1
1515 bool "MIPS64 Release 1"
1516 depends on SYS_HAS_CPU_MIPS64_R1
1517 select CPU_HAS_PREFETCH
1518 select CPU_HAS_LOAD_STORE_LR
1519 select CPU_SUPPORTS_32BIT_KERNEL
1520 select CPU_SUPPORTS_64BIT_KERNEL
1521 select CPU_SUPPORTS_HIGHMEM
1522 select CPU_SUPPORTS_HUGEPAGES
1524 Choose this option to build a kernel for release 1 or later of the
1525 MIPS64 architecture. Many modern embedded systems with a 64-bit
1526 MIPS processor are based on a MIPS64 processor. If you know the
1527 specific type of processor in your system, choose those that one
1528 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1529 Release 2 of the MIPS64 architecture is available since several
1530 years so chances are you even have a MIPS64 Release 2 processor
1531 in which case you should choose CPU_MIPS64_R2 instead for better
1534 config CPU_MIPS64_R2
1535 bool "MIPS64 Release 2"
1536 depends on SYS_HAS_CPU_MIPS64_R2
1537 select CPU_HAS_PREFETCH
1538 select CPU_HAS_LOAD_STORE_LR
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_HUGEPAGES
1543 select CPU_SUPPORTS_MSA
1546 Choose this option to build a kernel for release 2 or later of the
1547 MIPS64 architecture. Many modern embedded systems with a 64-bit
1548 MIPS processor are based on a MIPS64 processor. If you know the
1549 specific type of processor in your system, choose those that one
1550 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1552 config CPU_MIPS64_R6
1553 bool "MIPS64 Release 6"
1554 depends on SYS_HAS_CPU_MIPS64_R6
1555 select CPU_HAS_PREFETCH
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_64BIT_KERNEL
1558 select CPU_SUPPORTS_HIGHMEM
1559 select CPU_SUPPORTS_HUGEPAGES
1560 select CPU_SUPPORTS_MSA
1561 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1564 Choose this option to build a kernel for release 6 or later of the
1565 MIPS64 architecture. New MIPS processors, starting with the Warrior
1566 family, are based on a MIPS64r6 processor. If you own an older
1567 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1571 depends on SYS_HAS_CPU_R3000
1573 select CPU_HAS_LOAD_STORE_LR
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_HIGHMEM
1577 Please make sure to pick the right CPU type. Linux/MIPS is not
1578 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1579 *not* work on R4000 machines and vice versa. However, since most
1580 of the supported machines have an R4000 (or similar) CPU, R4x00
1581 might be a safe bet. If the resulting kernel does not work,
1582 try to recompile with R3000.
1586 depends on SYS_HAS_CPU_TX39XX
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_HAS_LOAD_STORE_LR
1592 depends on SYS_HAS_CPU_VR41XX
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_64BIT_KERNEL
1595 select CPU_HAS_LOAD_STORE_LR
1597 The options selects support for the NEC VR4100 series of processors.
1598 Only choose this option if you have one of these processors as a
1599 kernel built with this option will not run on any other type of
1600 processor or vice versa.
1604 depends on SYS_HAS_CPU_R4300
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_HAS_LOAD_STORE_LR
1609 MIPS Technologies R4300-series processors.
1613 depends on SYS_HAS_CPU_R4X00
1614 select CPU_SUPPORTS_32BIT_KERNEL
1615 select CPU_SUPPORTS_64BIT_KERNEL
1616 select CPU_SUPPORTS_HUGEPAGES
1617 select CPU_HAS_LOAD_STORE_LR
1619 MIPS Technologies R4000-series processors other than 4300, including
1620 the R4000, R4400, R4600, and 4700.
1624 depends on SYS_HAS_CPU_TX49XX
1625 select CPU_HAS_PREFETCH
1626 select CPU_HAS_LOAD_STORE_LR
1627 select CPU_SUPPORTS_32BIT_KERNEL
1628 select CPU_SUPPORTS_64BIT_KERNEL
1629 select CPU_SUPPORTS_HUGEPAGES
1633 depends on SYS_HAS_CPU_R5000
1634 select CPU_SUPPORTS_32BIT_KERNEL
1635 select CPU_SUPPORTS_64BIT_KERNEL
1636 select CPU_SUPPORTS_HUGEPAGES
1637 select CPU_HAS_LOAD_STORE_LR
1639 MIPS Technologies R5000-series processors other than the Nevada.
1643 depends on SYS_HAS_CPU_R5432
1644 select CPU_SUPPORTS_32BIT_KERNEL
1645 select CPU_SUPPORTS_64BIT_KERNEL
1646 select CPU_SUPPORTS_HUGEPAGES
1647 select CPU_HAS_LOAD_STORE_LR
1651 depends on SYS_HAS_CPU_R5500
1652 select CPU_SUPPORTS_32BIT_KERNEL
1653 select CPU_SUPPORTS_64BIT_KERNEL
1654 select CPU_SUPPORTS_HUGEPAGES
1655 select CPU_HAS_LOAD_STORE_LR
1657 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1662 depends on SYS_HAS_CPU_NEVADA
1663 select CPU_SUPPORTS_32BIT_KERNEL
1664 select CPU_SUPPORTS_64BIT_KERNEL
1665 select CPU_SUPPORTS_HUGEPAGES
1666 select CPU_HAS_LOAD_STORE_LR
1668 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1672 depends on SYS_HAS_CPU_R8000
1673 select CPU_HAS_PREFETCH
1674 select CPU_HAS_LOAD_STORE_LR
1675 select CPU_SUPPORTS_64BIT_KERNEL
1677 MIPS Technologies R8000 processors. Note these processors are
1678 uncommon and the support for them is incomplete.
1682 depends on SYS_HAS_CPU_R10000
1683 select CPU_HAS_PREFETCH
1684 select CPU_HAS_LOAD_STORE_LR
1685 select CPU_SUPPORTS_32BIT_KERNEL
1686 select CPU_SUPPORTS_64BIT_KERNEL
1687 select CPU_SUPPORTS_HIGHMEM
1688 select CPU_SUPPORTS_HUGEPAGES
1690 MIPS Technologies R10000-series processors.
1694 depends on SYS_HAS_CPU_RM7000
1695 select CPU_HAS_PREFETCH
1696 select CPU_HAS_LOAD_STORE_LR
1697 select CPU_SUPPORTS_32BIT_KERNEL
1698 select CPU_SUPPORTS_64BIT_KERNEL
1699 select CPU_SUPPORTS_HIGHMEM
1700 select CPU_SUPPORTS_HUGEPAGES
1704 depends on SYS_HAS_CPU_SB1
1705 select CPU_HAS_LOAD_STORE_LR
1706 select CPU_SUPPORTS_32BIT_KERNEL
1707 select CPU_SUPPORTS_64BIT_KERNEL
1708 select CPU_SUPPORTS_HIGHMEM
1709 select CPU_SUPPORTS_HUGEPAGES
1710 select WEAK_ORDERING
1712 config CPU_CAVIUM_OCTEON
1713 bool "Cavium Octeon processor"
1714 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1715 select CPU_HAS_PREFETCH
1716 select CPU_HAS_LOAD_STORE_LR
1717 select CPU_SUPPORTS_64BIT_KERNEL
1718 select WEAK_ORDERING
1719 select CPU_SUPPORTS_HIGHMEM
1720 select CPU_SUPPORTS_HUGEPAGES
1721 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1722 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1723 select MIPS_L1_CACHE_SHIFT_7
1726 The Cavium Octeon processor is a highly integrated chip containing
1727 many ethernet hardware widgets for networking tasks. The processor
1728 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1729 Full details can be found at http://www.caviumnetworks.com.
1732 bool "Broadcom BMIPS"
1733 depends on SYS_HAS_CPU_BMIPS
1735 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1736 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1737 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1738 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1739 select CPU_SUPPORTS_32BIT_KERNEL
1740 select DMA_NONCOHERENT
1742 select SWAP_IO_SPACE
1743 select WEAK_ORDERING
1744 select CPU_SUPPORTS_HIGHMEM
1745 select CPU_HAS_PREFETCH
1746 select CPU_HAS_LOAD_STORE_LR
1747 select CPU_SUPPORTS_CPUFREQ
1748 select MIPS_EXTERNAL_TIMER
1750 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1753 bool "Netlogic XLR SoC"
1754 depends on SYS_HAS_CPU_XLR
1755 select CPU_HAS_LOAD_STORE_LR
1756 select CPU_SUPPORTS_32BIT_KERNEL
1757 select CPU_SUPPORTS_64BIT_KERNEL
1758 select CPU_SUPPORTS_HIGHMEM
1759 select CPU_SUPPORTS_HUGEPAGES
1760 select WEAK_ORDERING
1761 select WEAK_REORDERING_BEYOND_LLSC
1763 Netlogic Microsystems XLR/XLS processors.
1766 bool "Netlogic XLP SoC"
1767 depends on SYS_HAS_CPU_XLP
1768 select CPU_SUPPORTS_32BIT_KERNEL
1769 select CPU_SUPPORTS_64BIT_KERNEL
1770 select CPU_SUPPORTS_HIGHMEM
1771 select WEAK_ORDERING
1772 select WEAK_REORDERING_BEYOND_LLSC
1773 select CPU_HAS_PREFETCH
1774 select CPU_HAS_LOAD_STORE_LR
1776 select CPU_SUPPORTS_HUGEPAGES
1777 select MIPS_ASID_BITS_VARIABLE
1779 Netlogic Microsystems XLP processors.
1782 config CPU_MIPS32_3_5_FEATURES
1783 bool "MIPS32 Release 3.5 Features"
1784 depends on SYS_HAS_CPU_MIPS32_R3_5
1785 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1787 Choose this option to build a kernel for release 2 or later of the
1788 MIPS32 architecture including features from the 3.5 release such as
1789 support for Enhanced Virtual Addressing (EVA).
1791 config CPU_MIPS32_3_5_EVA
1792 bool "Enhanced Virtual Addressing (EVA)"
1793 depends on CPU_MIPS32_3_5_FEATURES
1797 Choose this option if you want to enable the Enhanced Virtual
1798 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1799 One of its primary benefits is an increase in the maximum size
1800 of lowmem (up to 3GB). If unsure, say 'N' here.
1802 config CPU_MIPS32_R5_FEATURES
1803 bool "MIPS32 Release 5 Features"
1804 depends on SYS_HAS_CPU_MIPS32_R5
1805 depends on CPU_MIPS32_R2
1807 Choose this option to build a kernel for release 2 or later of the
1808 MIPS32 architecture including features from release 5 such as
1809 support for Extended Physical Addressing (XPA).
1811 config CPU_MIPS32_R5_XPA
1812 bool "Extended Physical Addressing (XPA)"
1813 depends on CPU_MIPS32_R5_FEATURES
1815 depends on !PAGE_SIZE_4KB
1816 depends on SYS_SUPPORTS_HIGHMEM
1819 select PHYS_ADDR_T_64BIT
1822 Choose this option if you want to enable the Extended Physical
1823 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1824 benefit is to increase physical addressing equal to or greater
1825 than 40 bits. Note that this has the side effect of turning on
1826 64-bit addressing which in turn makes the PTEs 64-bit in size.
1827 If unsure, say 'N' here.
1830 config CPU_NOP_WORKAROUNDS
1833 config CPU_JUMP_WORKAROUNDS
1836 config CPU_LOONGSON2F_WORKAROUNDS
1837 bool "Loongson 2F Workarounds"
1839 select CPU_NOP_WORKAROUNDS
1840 select CPU_JUMP_WORKAROUNDS
1842 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1843 require workarounds. Without workarounds the system may hang
1844 unexpectedly. For more information please refer to the gas
1845 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1847 Loongson 2F03 and later have fixed these issues and no workarounds
1848 are needed. The workarounds have no significant side effect on them
1849 but may decrease the performance of the system so this option should
1850 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1853 If unsure, please say Y.
1854 endif # CPU_LOONGSON2F
1856 config SYS_SUPPORTS_ZBOOT
1858 select HAVE_KERNEL_GZIP
1859 select HAVE_KERNEL_BZIP2
1860 select HAVE_KERNEL_LZ4
1861 select HAVE_KERNEL_LZMA
1862 select HAVE_KERNEL_LZO
1863 select HAVE_KERNEL_XZ
1865 config SYS_SUPPORTS_ZBOOT_UART16550
1867 select SYS_SUPPORTS_ZBOOT
1869 config SYS_SUPPORTS_ZBOOT_UART_PROM
1871 select SYS_SUPPORTS_ZBOOT
1873 config CPU_LOONGSON2
1875 select CPU_SUPPORTS_32BIT_KERNEL
1876 select CPU_SUPPORTS_64BIT_KERNEL
1877 select CPU_SUPPORTS_HIGHMEM
1878 select CPU_SUPPORTS_HUGEPAGES
1879 select ARCH_HAS_PHYS_TO_DMA
1880 select CPU_HAS_LOAD_STORE_LR
1882 config CPU_LOONGSON1
1886 select CPU_HAS_PREFETCH
1887 select CPU_HAS_LOAD_STORE_LR
1888 select CPU_SUPPORTS_32BIT_KERNEL
1889 select CPU_SUPPORTS_HIGHMEM
1890 select CPU_SUPPORTS_CPUFREQ
1892 config CPU_BMIPS32_3300
1893 select SMP_UP if SMP
1896 config CPU_BMIPS4350
1898 select SYS_SUPPORTS_SMP
1899 select SYS_SUPPORTS_HOTPLUG_CPU
1901 config CPU_BMIPS4380
1903 select MIPS_L1_CACHE_SHIFT_6
1904 select SYS_SUPPORTS_SMP
1905 select SYS_SUPPORTS_HOTPLUG_CPU
1908 config CPU_BMIPS5000
1910 select MIPS_CPU_SCACHE
1911 select MIPS_L1_CACHE_SHIFT_7
1912 select SYS_SUPPORTS_SMP
1913 select SYS_SUPPORTS_HOTPLUG_CPU
1916 config SYS_HAS_CPU_LOONGSON3
1918 select CPU_SUPPORTS_CPUFREQ
1921 config SYS_HAS_CPU_LOONGSON2E
1924 config SYS_HAS_CPU_LOONGSON2F
1926 select CPU_SUPPORTS_CPUFREQ
1927 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1928 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1930 config SYS_HAS_CPU_LOONGSON1B
1933 config SYS_HAS_CPU_LOONGSON1C
1936 config SYS_HAS_CPU_MIPS32_R1
1939 config SYS_HAS_CPU_MIPS32_R2
1942 config SYS_HAS_CPU_MIPS32_R3_5
1945 config SYS_HAS_CPU_MIPS32_R5
1947 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1949 config SYS_HAS_CPU_MIPS32_R6
1951 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1953 config SYS_HAS_CPU_MIPS64_R1
1956 config SYS_HAS_CPU_MIPS64_R2
1959 config SYS_HAS_CPU_MIPS64_R6
1961 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1963 config SYS_HAS_CPU_R3000
1966 config SYS_HAS_CPU_TX39XX
1969 config SYS_HAS_CPU_VR41XX
1972 config SYS_HAS_CPU_R4300
1975 config SYS_HAS_CPU_R4X00
1978 config SYS_HAS_CPU_TX49XX
1981 config SYS_HAS_CPU_R5000
1984 config SYS_HAS_CPU_R5432
1987 config SYS_HAS_CPU_R5500
1990 config SYS_HAS_CPU_NEVADA
1993 config SYS_HAS_CPU_R8000
1996 config SYS_HAS_CPU_R10000
1998 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2000 config SYS_HAS_CPU_RM7000
2003 config SYS_HAS_CPU_SB1
2006 config SYS_HAS_CPU_CAVIUM_OCTEON
2009 config SYS_HAS_CPU_BMIPS
2012 config SYS_HAS_CPU_BMIPS32_3300
2014 select SYS_HAS_CPU_BMIPS
2016 config SYS_HAS_CPU_BMIPS4350
2018 select SYS_HAS_CPU_BMIPS
2020 config SYS_HAS_CPU_BMIPS4380
2022 select SYS_HAS_CPU_BMIPS
2024 config SYS_HAS_CPU_BMIPS5000
2026 select SYS_HAS_CPU_BMIPS
2027 select ARCH_HAS_SYNC_DMA_FOR_CPU
2029 config SYS_HAS_CPU_XLR
2032 config SYS_HAS_CPU_XLP
2036 # CPU may reorder R->R, R->W, W->R, W->W
2037 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2039 config WEAK_ORDERING
2043 # CPU may reorder reads and writes beyond LL/SC
2044 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2046 config WEAK_REORDERING_BEYOND_LLSC
2051 # These two indicate any level of the MIPS32 and MIPS64 architecture
2055 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2059 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2062 # These indicate the revision of the architecture
2066 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2070 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2076 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2078 select HAVE_ARCH_BITREVERSE
2079 select MIPS_ASID_BITS_VARIABLE
2080 select MIPS_CRC_SUPPORT
2083 config TARGET_ISA_REV
2085 default 1 if CPU_MIPSR1
2086 default 2 if CPU_MIPSR2
2087 default 6 if CPU_MIPSR6
2090 Reflects the ISA revision being targeted by the kernel build. This
2091 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2099 config SYS_SUPPORTS_32BIT_KERNEL
2101 config SYS_SUPPORTS_64BIT_KERNEL
2103 config CPU_SUPPORTS_32BIT_KERNEL
2105 config CPU_SUPPORTS_64BIT_KERNEL
2107 config CPU_SUPPORTS_CPUFREQ
2109 config CPU_SUPPORTS_ADDRWINCFG
2111 config CPU_SUPPORTS_HUGEPAGES
2113 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2115 config MIPS_PGD_C0_CONTEXT
2117 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2120 # Set to y for ptrace access to watch registers.
2122 config HARDWARE_WATCHPOINTS
2124 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2129 prompt "Kernel code model"
2131 You should only select this option if you have a workload that
2132 actually benefits from 64-bit processing or if your machine has
2133 large memory. You will only be presented a single option in this
2134 menu if your system does not support both 32-bit and 64-bit kernels.
2137 bool "32-bit kernel"
2138 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2141 Select this option if you want to build a 32-bit kernel.
2144 bool "64-bit kernel"
2145 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2147 Select this option if you want to build a 64-bit kernel.
2152 bool "KVM Guest Kernel"
2153 depends on BROKEN_ON_SMP
2155 Select this option if building a guest kernel for KVM (Trap & Emulate)
2158 config KVM_GUEST_TIMER_FREQ
2159 int "Count/Compare Timer Frequency (MHz)"
2160 depends on KVM_GUEST
2163 Set this to non-zero if building a guest kernel for KVM to skip RTC
2164 emulation when determining guest CPU Frequency. Instead, the guest's
2165 timer frequency is specified directly.
2167 config MIPS_VA_BITS_48
2168 bool "48 bits virtual memory"
2171 Support a maximum at least 48 bits of application virtual
2172 memory. Default is 40 bits or less, depending on the CPU.
2173 For page sizes 16k and above, this option results in a small
2174 memory overhead for page tables. For 4k page size, a fourth
2175 level of page tables is added which imposes both a memory
2176 overhead as well as slower TLB fault handling.
2181 prompt "Kernel page size"
2182 default PAGE_SIZE_4KB
2184 config PAGE_SIZE_4KB
2186 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2188 This option select the standard 4kB Linux page size. On some
2189 R3000-family processors this is the only available page size. Using
2190 4kB page size will minimize memory consumption and is therefore
2191 recommended for low memory systems.
2193 config PAGE_SIZE_8KB
2195 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2196 depends on !MIPS_VA_BITS_48
2198 Using 8kB page size will result in higher performance kernel at
2199 the price of higher memory consumption. This option is available
2200 only on R8000 and cnMIPS processors. Note that you will need a
2201 suitable Linux distribution to support this.
2203 config PAGE_SIZE_16KB
2205 depends on !CPU_R3000 && !CPU_TX39XX
2207 Using 16kB page size will result in higher performance kernel at
2208 the price of higher memory consumption. This option is available on
2209 all non-R3000 family processors. Note that you will need a suitable
2210 Linux distribution to support this.
2212 config PAGE_SIZE_32KB
2214 depends on CPU_CAVIUM_OCTEON
2215 depends on !MIPS_VA_BITS_48
2217 Using 32kB page size will result in higher performance kernel at
2218 the price of higher memory consumption. This option is available
2219 only on cnMIPS cores. Note that you will need a suitable Linux
2220 distribution to support this.
2222 config PAGE_SIZE_64KB
2224 depends on !CPU_R3000 && !CPU_TX39XX
2226 Using 64kB page size will result in higher performance kernel at
2227 the price of higher memory consumption. This option is available on
2228 all non-R3000 family processor. Not that at the time of this
2229 writing this option is still high experimental.
2233 config FORCE_MAX_ZONEORDER
2234 int "Maximum zone order"
2235 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2236 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2237 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2238 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2239 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2240 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2244 The kernel memory allocator divides physically contiguous memory
2245 blocks into "zones", where each zone is a power of two number of
2246 pages. This option selects the largest power of two that the kernel
2247 keeps in the memory allocator. If you need to allocate very large
2248 blocks of physically contiguous memory, then you may need to
2249 increase this value.
2251 This config option is actually maximum order plus one. For example,
2252 a value of 11 means that the largest free memory block is 2^10 pages.
2254 The page size is not necessarily 4KB. Keep this in mind
2255 when choosing a value for this option.
2260 config IP22_CPU_SCACHE
2265 # Support for a MIPS32 / MIPS64 style S-caches
2267 config MIPS_CPU_SCACHE
2271 config R5000_CPU_SCACHE
2275 config RM7000_CPU_SCACHE
2279 config SIBYTE_DMA_PAGEOPS
2280 bool "Use DMA to clear/copy pages"
2283 Instead of using the CPU to zero and copy pages, use a Data Mover
2284 channel. These DMA channels are otherwise unused by the standard
2285 SiByte Linux port. Seems to give a small performance benefit.
2287 config CPU_HAS_PREFETCH
2290 config CPU_GENERIC_DUMP_TLB
2292 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2294 config MIPS_FP_SUPPORT
2295 bool "Floating Point support" if EXPERT
2298 Select y to include support for floating point in the kernel
2299 including initialization of FPU hardware, FP context save & restore
2300 and emulation of an FPU where necessary. Without this support any
2301 userland program attempting to use floating point instructions will
2304 If you know that your userland will not attempt to use floating point
2305 instructions then you can say n here to shrink the kernel a little.
2309 config CPU_R2300_FPU
2311 depends on MIPS_FP_SUPPORT
2312 default y if CPU_R3000 || CPU_TX39XX
2316 depends on MIPS_FP_SUPPORT
2317 default y if !CPU_R2300_FPU
2319 config CPU_R4K_CACHE_TLB
2321 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2324 bool "MIPS MT SMP support (1 TC on each available VPE)"
2326 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2327 select CPU_MIPSR2_IRQ_VI
2328 select CPU_MIPSR2_IRQ_EI
2333 select SYS_SUPPORTS_SMP
2334 select SYS_SUPPORTS_SCHED_SMT
2335 select MIPS_PERF_SHARED_TC_COUNTERS
2337 This is a kernel model which is known as SMVP. This is supported
2338 on cores with the MT ASE and uses the available VPEs to implement
2339 virtual processors which supports SMP. This is equivalent to the
2340 Intel Hyperthreading feature. For further information go to
2341 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2347 bool "SMT (multithreading) scheduler support"
2348 depends on SYS_SUPPORTS_SCHED_SMT
2351 SMT scheduler support improves the CPU scheduler's decision making
2352 when dealing with MIPS MT enabled cores at a cost of slightly
2353 increased overhead in some places. If unsure say N here.
2355 config SYS_SUPPORTS_SCHED_SMT
2358 config SYS_SUPPORTS_MULTITHREADING
2361 config MIPS_MT_FPAFF
2362 bool "Dynamic FPU affinity for FP-intensive threads"
2364 depends on MIPS_MT_SMP
2366 config MIPSR2_TO_R6_EMULATOR
2367 bool "MIPS R2-to-R6 emulator"
2368 depends on CPU_MIPSR6
2369 depends on MIPS_FP_SUPPORT
2372 Choose this option if you want to run non-R6 MIPS userland code.
2373 Even if you say 'Y' here, the emulator will still be disabled by
2374 default. You can enable it using the 'mipsr2emu' kernel option.
2375 The only reason this is a build-time option is to save ~14K from the
2378 config SYS_SUPPORTS_VPE_LOADER
2380 depends on SYS_SUPPORTS_MULTITHREADING
2382 Indicates that the platform supports the VPE loader, and provides
2385 config MIPS_VPE_LOADER
2386 bool "VPE loader support."
2387 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2388 select CPU_MIPSR2_IRQ_VI
2389 select CPU_MIPSR2_IRQ_EI
2392 Includes a loader for loading an elf relocatable object
2393 onto another VPE and running it.
2395 config MIPS_VPE_LOADER_CMP
2398 depends on MIPS_VPE_LOADER && MIPS_CMP
2400 config MIPS_VPE_LOADER_MT
2403 depends on MIPS_VPE_LOADER && !MIPS_CMP
2405 config MIPS_VPE_LOADER_TOM
2406 bool "Load VPE program into memory hidden from linux"
2407 depends on MIPS_VPE_LOADER
2410 The loader can use memory that is present but has been hidden from
2411 Linux using the kernel command line option "mem=xxMB". It's up to
2412 you to ensure the amount you put in the option and the space your
2413 program requires is less or equal to the amount physically present.
2415 config MIPS_VPE_APSP_API
2416 bool "Enable support for AP/SP API (RTLX)"
2417 depends on MIPS_VPE_LOADER
2419 config MIPS_VPE_APSP_API_CMP
2422 depends on MIPS_VPE_APSP_API && MIPS_CMP
2424 config MIPS_VPE_APSP_API_MT
2427 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2430 bool "MIPS CMP framework support (DEPRECATED)"
2431 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2434 select SYS_SUPPORTS_SMP
2435 select WEAK_ORDERING
2438 Select this if you are using a bootloader which implements the "CMP
2439 framework" protocol (ie. YAMON) and want your kernel to make use of
2440 its ability to start secondary CPUs.
2442 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2446 bool "MIPS Coherent Processing System support"
2447 depends on SYS_SUPPORTS_MIPS_CPS
2449 select MIPS_CPS_PM if HOTPLUG_CPU
2451 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2452 select SYS_SUPPORTS_HOTPLUG_CPU
2453 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2454 select SYS_SUPPORTS_SMP
2455 select WEAK_ORDERING
2457 Select this if you wish to run an SMP kernel across multiple cores
2458 within a MIPS Coherent Processing System. When this option is
2459 enabled the kernel will probe for other cores and boot them with
2460 no external assistance. It is safe to enable this when hardware
2461 support is unavailable.
2474 config SB1_PASS_2_WORKAROUNDS
2476 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2479 config SB1_PASS_2_1_WORKAROUNDS
2481 depends on CPU_SB1 && CPU_SB1_PASS_2
2485 prompt "SmartMIPS or microMIPS ASE support"
2487 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2490 Select this if you want neither microMIPS nor SmartMIPS support
2492 config CPU_HAS_SMARTMIPS
2493 depends on SYS_SUPPORTS_SMARTMIPS
2496 SmartMIPS is a extension of the MIPS32 architecture aimed at
2497 increased security at both hardware and software level for
2498 smartcards. Enabling this option will allow proper use of the
2499 SmartMIPS instructions by Linux applications. However a kernel with
2500 this option will not work on a MIPS core without SmartMIPS core. If
2501 you don't know you probably don't have SmartMIPS and should say N
2504 config CPU_MICROMIPS
2505 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2508 When this option is enabled the kernel will be built using the
2514 bool "Support for the MIPS SIMD Architecture"
2515 depends on CPU_SUPPORTS_MSA
2516 depends on MIPS_FP_SUPPORT
2517 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2519 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2520 and a set of SIMD instructions to operate on them. When this option
2521 is enabled the kernel will support allocating & switching MSA
2522 vector register contexts. If you know that your kernel will only be
2523 running on CPUs which do not support MSA or that your userland will
2524 not be making use of it then you may wish to say N here to reduce
2525 the size & complexity of your kernel.
2538 config CPU_HAS_LOAD_STORE_LR
2541 CPU has support for unaligned load and store instructions:
2542 LWL, LWR, SWL, SWR (Load/store word left/right).
2543 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2546 # Vectored interrupt mode is an R2 feature
2548 config CPU_MIPSR2_IRQ_VI
2552 # Extended interrupt mode is an R2 feature
2554 config CPU_MIPSR2_IRQ_EI
2559 depends on !CPU_R3000
2565 config CPU_DADDI_WORKAROUNDS
2568 config CPU_R4000_WORKAROUNDS
2570 select CPU_R4400_WORKAROUNDS
2572 config CPU_R4400_WORKAROUNDS
2575 config MIPS_ASID_SHIFT
2577 default 6 if CPU_R3000 || CPU_TX39XX
2578 default 4 if CPU_R8000
2581 config MIPS_ASID_BITS
2583 default 0 if MIPS_ASID_BITS_VARIABLE
2584 default 6 if CPU_R3000 || CPU_TX39XX
2587 config MIPS_ASID_BITS_VARIABLE
2590 config MIPS_CRC_SUPPORT
2594 # - Highmem only makes sense for the 32-bit kernel.
2595 # - The current highmem code will only work properly on physically indexed
2596 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2597 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2598 # moment we protect the user and offer the highmem option only on machines
2599 # where it's known to be safe. This will not offer highmem on a few systems
2600 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2601 # indexed CPUs but we're playing safe.
2602 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2603 # know they might have memory configurations that could make use of highmem
2607 bool "High Memory Support"
2608 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2610 config CPU_SUPPORTS_HIGHMEM
2613 config SYS_SUPPORTS_HIGHMEM
2616 config SYS_SUPPORTS_SMARTMIPS
2619 config SYS_SUPPORTS_MICROMIPS
2622 config SYS_SUPPORTS_MIPS16
2625 This option must be set if a kernel might be executed on a MIPS16-
2626 enabled CPU even if MIPS16 is not actually being used. In other
2627 words, it makes the kernel MIPS16-tolerant.
2629 config CPU_SUPPORTS_MSA
2632 config ARCH_FLATMEM_ENABLE
2634 depends on !NUMA && !CPU_LOONGSON2
2636 config ARCH_DISCONTIGMEM_ENABLE
2638 default y if SGI_IP27
2640 Say Y to support efficient handling of discontiguous physical memory,
2641 for architectures which are either NUMA (Non-Uniform Memory Access)
2642 or have huge holes in the physical address space for other reasons.
2643 See <file:Documentation/vm/numa.rst> for more.
2645 config ARCH_SPARSEMEM_ENABLE
2647 select SPARSEMEM_STATIC
2651 depends on SYS_SUPPORTS_NUMA
2653 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2654 Access). This option improves performance on systems with more
2655 than two nodes; on two node systems it is generally better to
2656 leave it disabled; on single node systems disable this option
2659 config SYS_SUPPORTS_NUMA
2663 bool "Relocatable kernel"
2664 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2666 This builds a kernel image that retains relocation information
2667 so it can be loaded someplace besides the default 1MB.
2668 The relocations make the kernel binary about 15% larger,
2669 but are discarded at runtime
2671 config RELOCATION_TABLE_SIZE
2672 hex "Relocation table size"
2673 depends on RELOCATABLE
2674 range 0x0 0x01000000
2675 default "0x00100000"
2677 A table of relocation data will be appended to the kernel binary
2678 and parsed at boot to fix up the relocated kernel.
2680 This option allows the amount of space reserved for the table to be
2681 adjusted, although the default of 1Mb should be ok in most cases.
2683 The build will fail and a valid size suggested if this is too small.
2685 If unsure, leave at the default value.
2687 config RANDOMIZE_BASE
2688 bool "Randomize the address of the kernel image"
2689 depends on RELOCATABLE
2691 Randomizes the physical and virtual address at which the
2692 kernel image is loaded, as a security feature that
2693 deters exploit attempts relying on knowledge of the location
2694 of kernel internals.
2696 Entropy is generated using any coprocessor 0 registers available.
2698 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2702 config RANDOMIZE_BASE_MAX_OFFSET
2703 hex "Maximum kASLR offset" if EXPERT
2704 depends on RANDOMIZE_BASE
2705 range 0x0 0x40000000 if EVA || 64BIT
2706 range 0x0 0x08000000
2707 default "0x01000000"
2709 When kASLR is active, this provides the maximum offset that will
2710 be applied to the kernel image. It should be set according to the
2711 amount of physical RAM available in the target system minus
2712 PHYSICAL_START and must be a power of 2.
2714 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2715 EVA or 64-bit. The default is 16Mb.
2720 depends on NEED_MULTIPLE_NODES
2722 config HW_PERF_EVENTS
2723 bool "Enable hardware performance counter support for perf events"
2724 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2727 Enable hardware performance counter support for perf events. If
2728 disabled, perf events will use software events only.
2731 bool "Multi-Processing support"
2732 depends on SYS_SUPPORTS_SMP
2734 This enables support for systems with more than one CPU. If you have
2735 a system with only one CPU, say N. If you have a system with more
2736 than one CPU, say Y.
2738 If you say N here, the kernel will run on uni- and multiprocessor
2739 machines, but will use only one CPU of a multiprocessor machine. If
2740 you say Y here, the kernel will run on many, but not all,
2741 uniprocessor machines. On a uniprocessor machine, the kernel
2742 will run faster if you say N here.
2744 People using multiprocessor machines who say Y here should also say
2745 Y to "Enhanced Real Time Clock Support", below.
2747 See also the SMP-HOWTO available at
2748 <http://www.tldp.org/docs.html#howto>.
2750 If you don't know what to do here, say N.
2753 bool "Support for hot-pluggable CPUs"
2754 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2756 Say Y here to allow turning CPUs off and on. CPUs can be
2757 controlled through /sys/devices/system/cpu.
2758 (Note: power management support will enable this option
2759 automatically on SMP systems. )
2760 Say N if you want to disable CPU hotplug.
2765 config SYS_SUPPORTS_MIPS_CMP
2768 config SYS_SUPPORTS_MIPS_CPS
2771 config SYS_SUPPORTS_SMP
2774 config NR_CPUS_DEFAULT_4
2777 config NR_CPUS_DEFAULT_8
2780 config NR_CPUS_DEFAULT_16
2783 config NR_CPUS_DEFAULT_32
2786 config NR_CPUS_DEFAULT_64
2790 int "Maximum number of CPUs (2-256)"
2793 default "4" if NR_CPUS_DEFAULT_4
2794 default "8" if NR_CPUS_DEFAULT_8
2795 default "16" if NR_CPUS_DEFAULT_16
2796 default "32" if NR_CPUS_DEFAULT_32
2797 default "64" if NR_CPUS_DEFAULT_64
2799 This allows you to specify the maximum number of CPUs which this
2800 kernel will support. The maximum supported value is 32 for 32-bit
2801 kernel and 64 for 64-bit kernels; the minimum value which makes
2802 sense is 1 for Qemu (useful only for kernel debugging purposes)
2803 and 2 for all others.
2805 This is purely to save memory - each supported CPU adds
2806 approximately eight kilobytes to the kernel image. For best
2807 performance should round up your number of processors to the next
2810 config MIPS_PERF_SHARED_TC_COUNTERS
2813 config MIPS_NR_CPU_NR_MAP_1024
2816 config MIPS_NR_CPU_NR_MAP
2819 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2820 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2823 # Timer Interrupt Frequency Configuration
2827 prompt "Timer frequency"
2830 Allows the configuration of the timer frequency.
2833 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2836 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2839 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2842 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2845 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2848 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2851 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2854 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2858 config SYS_SUPPORTS_24HZ
2861 config SYS_SUPPORTS_48HZ
2864 config SYS_SUPPORTS_100HZ
2867 config SYS_SUPPORTS_128HZ
2870 config SYS_SUPPORTS_250HZ
2873 config SYS_SUPPORTS_256HZ
2876 config SYS_SUPPORTS_1000HZ
2879 config SYS_SUPPORTS_1024HZ
2882 config SYS_SUPPORTS_ARBIT_HZ
2884 default y if !SYS_SUPPORTS_24HZ && \
2885 !SYS_SUPPORTS_48HZ && \
2886 !SYS_SUPPORTS_100HZ && \
2887 !SYS_SUPPORTS_128HZ && \
2888 !SYS_SUPPORTS_250HZ && \
2889 !SYS_SUPPORTS_256HZ && \
2890 !SYS_SUPPORTS_1000HZ && \
2891 !SYS_SUPPORTS_1024HZ
2897 default 100 if HZ_100
2898 default 128 if HZ_128
2899 default 250 if HZ_250
2900 default 256 if HZ_256
2901 default 1000 if HZ_1000
2902 default 1024 if HZ_1024
2905 def_bool HIGH_RES_TIMERS
2908 bool "Kexec system call"
2911 kexec is a system call that implements the ability to shutdown your
2912 current kernel, and to start another kernel. It is like a reboot
2913 but it is independent of the system firmware. And like a reboot
2914 you can start any kernel with it, not just Linux.
2916 The name comes from the similarity to the exec system call.
2918 It is an ongoing process to be certain the hardware in a machine
2919 is properly shutdown, so do not be surprised if this code does not
2920 initially work for you. As of this writing the exact hardware
2921 interface is strongly in flux, so no good recommendation can be
2925 bool "Kernel crash dumps"
2927 Generate crash dump after being started by kexec.
2928 This should be normally only set in special crash dump kernels
2929 which are loaded in the main kernel with kexec-tools into
2930 a specially reserved region and then later executed after
2931 a crash by kdump/kexec. The crash dump kernel must be compiled
2932 to a memory address not used by the main kernel or firmware using
2935 config PHYSICAL_START
2936 hex "Physical address where the kernel is loaded"
2937 default "0xffffffff84000000"
2938 depends on CRASH_DUMP
2940 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2941 If you plan to use kernel for capturing the crash dump change
2942 this value to start of the reserved region (the "X" value as
2943 specified in the "crashkernel=YM@XM" command line boot parameter
2944 passed to the panic-ed kernel).
2947 bool "Enable seccomp to safely compute untrusted bytecode"
2951 This kernel feature is useful for number crunching applications
2952 that may need to compute untrusted bytecode during their
2953 execution. By using pipes or other transports made available to
2954 the process as file descriptors supporting the read/write
2955 syscalls, it's possible to isolate those applications in
2956 their own address space using seccomp. Once seccomp is
2957 enabled via /proc/<pid>/seccomp, it cannot be disabled
2958 and the task is only allowed to execute a few safe syscalls
2959 defined by each seccomp mode.
2961 If unsure, say Y. Only embedded should say N here.
2963 config MIPS_O32_FP64_SUPPORT
2964 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2965 depends on 32BIT || MIPS32_O32
2967 When this is enabled, the kernel will support use of 64-bit floating
2968 point registers with binaries using the O32 ABI along with the
2969 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2970 32-bit MIPS systems this support is at the cost of increasing the
2971 size and complexity of the compiled FPU emulator. Thus if you are
2972 running a MIPS32 system and know that none of your userland binaries
2973 will require 64-bit floating point, you may wish to reduce the size
2974 of your kernel & potentially improve FP emulation performance by
2977 Although binutils currently supports use of this flag the details
2978 concerning its effect upon the O32 ABI in userland are still being
2979 worked on. In order to avoid userland becoming dependant upon current
2980 behaviour before the details have been finalised, this option should
2981 be considered experimental and only enabled by those working upon
2989 select OF_EARLY_FLATTREE
2999 prompt "Kernel appended dtb support" if USE_OF
3000 default MIPS_NO_APPENDED_DTB
3002 config MIPS_NO_APPENDED_DTB
3005 Do not enable appended dtb support.
3007 config MIPS_ELF_APPENDED_DTB
3010 With this option, the boot code will look for a device tree binary
3011 DTB) included in the vmlinux ELF section .appended_dtb. By default
3012 it is empty and the DTB can be appended using binutils command
3015 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3017 This is meant as a backward compatiblity convenience for those
3018 systems with a bootloader that can't be upgraded to accommodate
3019 the documented boot protocol using a device tree.
3021 config MIPS_RAW_APPENDED_DTB
3022 bool "vmlinux.bin or vmlinuz.bin"
3024 With this option, the boot code will look for a device tree binary
3025 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3026 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3028 This is meant as a backward compatibility convenience for those
3029 systems with a bootloader that can't be upgraded to accommodate
3030 the documented boot protocol using a device tree.
3032 Beware that there is very little in terms of protection against
3033 this option being confused by leftover garbage in memory that might
3034 look like a DTB header after a reboot if no actual DTB is appended
3035 to vmlinux.bin. Do not leave this option active in a production kernel
3036 if you don't intend to always append a DTB.
3040 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3041 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3044 default MIPS_CMDLINE_FROM_BOOTLOADER
3046 config MIPS_CMDLINE_FROM_DTB
3048 bool "Dtb kernel arguments if available"
3050 config MIPS_CMDLINE_DTB_EXTEND
3052 bool "Extend dtb kernel arguments with bootloader arguments"
3054 config MIPS_CMDLINE_FROM_BOOTLOADER
3055 bool "Bootloader kernel arguments if available"
3057 config MIPS_CMDLINE_BUILTIN_EXTEND
3058 depends on CMDLINE_BOOL
3059 bool "Extend builtin kernel arguments with bootloader arguments"
3064 config LOCKDEP_SUPPORT
3068 config STACKTRACE_SUPPORT
3072 config HAVE_LATENCYTOP_SUPPORT
3076 config PGTABLE_LEVELS
3078 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3079 default 3 if 64BIT && !PAGE_SIZE_64KB
3082 config MIPS_AUTO_PFN_OFFSET
3085 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3087 config PCI_DRIVERS_GENERIC
3088 select PCI_DOMAINS_GENERIC if PCI
3091 config PCI_DRIVERS_LEGACY
3092 def_bool !PCI_DRIVERS_GENERIC
3093 select NO_GENERIC_PCI_IOPORT_MAP
3094 select PCI_DOMAINS if PCI
3097 # ISA support is now enabled via select. Too many systems still have the one
3098 # or other ISA chip on the board that users don't know about so don't expect
3099 # users to choose the right thing ...
3105 bool "TURBOchannel support"
3106 depends on MACH_DECSTATION
3108 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3109 processors. TURBOchannel programming specifications are available
3111 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3113 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3114 Linux driver support status is documented at:
3115 <http://www.linux-mips.org/wiki/DECstation>
3121 config ARCH_MMAP_RND_BITS_MIN
3125 config ARCH_MMAP_RND_BITS_MAX
3129 config ARCH_MMAP_RND_COMPAT_BITS_MIN
3132 config ARCH_MMAP_RND_COMPAT_BITS_MAX
3139 select MIPS_EXTERNAL_TIMER
3152 config MIPS32_COMPAT
3158 config SYSVIPC_COMPAT
3162 bool "Kernel support for o32 binaries"
3164 select ARCH_WANT_OLD_COMPAT_IPC
3166 select MIPS32_COMPAT
3167 select SYSVIPC_COMPAT if SYSVIPC
3169 Select this option if you want to run o32 binaries. These are pure
3170 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3171 existing binaries are in this format.
3176 bool "Kernel support for n32 binaries"
3178 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3180 select MIPS32_COMPAT
3181 select SYSVIPC_COMPAT if SYSVIPC
3183 Select this option if you want to run n32 binaries. These are
3184 64-bit binaries using 32-bit quantities for addressing and certain
3185 data that would normally be 64-bit. They are used in special
3192 default y if MIPS32_O32 || MIPS32_N32
3195 menu "Power management options"
3197 config ARCH_HIBERNATION_POSSIBLE
3199 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3201 config ARCH_SUSPEND_POSSIBLE
3203 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3205 source "kernel/power/Kconfig"
3209 config MIPS_EXTERNAL_TIMER
3212 menu "CPU Power Management"
3214 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3215 source "drivers/cpufreq/Kconfig"
3218 source "drivers/cpuidle/Kconfig"
3222 source "drivers/firmware/Kconfig"
3224 source "arch/mips/kvm/Kconfig"