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_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
9 select ARCH_HAS_UBSAN_SANITIZE_ALL
10 select ARCH_SUPPORTS_UPROBES
11 select ARCH_USE_BUILTIN_BSWAP
12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
13 select ARCH_USE_QUEUED_RWLOCKS
14 select ARCH_USE_QUEUED_SPINLOCKS
15 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
16 select ARCH_WANT_IPC_PARSE_VERSION
17 select BUILDTIME_EXTABLE_SORT
18 select CLONE_BACKWARDS
19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
20 select CPU_PM if CPU_IDLE
21 select GENERIC_ATOMIC64 if !64BIT
22 select GENERIC_CLOCKEVENTS
23 select GENERIC_CMOS_UPDATE
24 select GENERIC_CPU_AUTOPROBE
25 select GENERIC_GETTIMEOFDAY
27 select GENERIC_IRQ_PROBE
28 select GENERIC_IRQ_SHOW
29 select GENERIC_ISA_DMA if EISA
30 select GENERIC_LIB_ASHLDI3
31 select GENERIC_LIB_ASHRDI3
32 select GENERIC_LIB_CMPDI2
33 select GENERIC_LIB_LSHRDI3
34 select GENERIC_LIB_UCMPDI2
35 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_TIME_VSYSCALL
38 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
39 select HANDLE_DOMAIN_IRQ
40 select HAVE_ARCH_COMPILER_H
41 select HAVE_ARCH_JUMP_LABEL
43 select HAVE_ARCH_MMAP_RND_BITS if MMU
44 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
45 select HAVE_ARCH_SECCOMP_FILTER
46 select HAVE_ARCH_TRACEHOOK
47 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
48 select HAVE_ASM_MODVERSIONS
49 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
50 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
51 select HAVE_CONTEXT_TRACKING
52 select HAVE_COPY_THREAD_TLS
53 select HAVE_C_RECORDMCOUNT
54 select HAVE_DEBUG_KMEMLEAK
55 select HAVE_DEBUG_STACKOVERFLOW
56 select HAVE_DMA_CONTIGUOUS
57 select HAVE_DYNAMIC_FTRACE
58 select HAVE_EXIT_THREAD
60 select HAVE_FTRACE_MCOUNT_RECORD
61 select HAVE_FUNCTION_GRAPH_TRACER
62 select HAVE_FUNCTION_TRACER
64 select HAVE_IOREMAP_PROT
65 select HAVE_IRQ_EXIT_ON_IRQ_STACK
66 select HAVE_IRQ_TIME_ACCOUNTING
68 select HAVE_KRETPROBES
69 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
70 select HAVE_MEMBLOCK_NODE_MAP
71 select HAVE_MOD_ARCH_SPECIFIC
74 select HAVE_PERF_EVENTS
75 select HAVE_REGS_AND_STACK_ACCESS_API
77 select HAVE_STACKPROTECTOR
78 select HAVE_SYSCALL_TRACEPOINTS
79 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
80 select HAVE_GENERIC_VDSO
81 select IRQ_FORCED_THREADING
83 select MODULES_USE_ELF_RELA if MODULES && 64BIT
84 select MODULES_USE_ELF_REL if MODULES
85 select PERF_USE_VMALLOC
87 select SYSCTL_EXCEPTION_TRACE
89 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
91 menu "Machine selection"
98 bool "Generic board-agnostic MIPS kernel"
102 select CLKSRC_MIPS_GIC
104 select CPU_MIPSR2_IRQ_VI
105 select CPU_MIPSR2_IRQ_EI
107 select DMA_PERDEV_COHERENT
111 select MIPS_AUTO_PFN_OFFSET
112 select MIPS_CPU_SCACHE
114 select MIPS_L1_CACHE_SHIFT_7
115 select NO_EXCEPT_FILL
116 select PCI_DRIVERS_GENERIC
120 select SYS_HAS_CPU_MIPS32_R1
121 select SYS_HAS_CPU_MIPS32_R2
122 select SYS_HAS_CPU_MIPS32_R6
123 select SYS_HAS_CPU_MIPS64_R1
124 select SYS_HAS_CPU_MIPS64_R2
125 select SYS_HAS_CPU_MIPS64_R6
126 select SYS_SUPPORTS_32BIT_KERNEL
127 select SYS_SUPPORTS_64BIT_KERNEL
128 select SYS_SUPPORTS_BIG_ENDIAN
129 select SYS_SUPPORTS_HIGHMEM
130 select SYS_SUPPORTS_LITTLE_ENDIAN
131 select SYS_SUPPORTS_MICROMIPS
132 select SYS_SUPPORTS_MIPS_CPS
133 select SYS_SUPPORTS_MIPS16
134 select SYS_SUPPORTS_MULTITHREADING
135 select SYS_SUPPORTS_RELOCATABLE
136 select SYS_SUPPORTS_SMARTMIPS
137 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
138 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
139 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
140 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
141 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
142 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
146 Select this to build a kernel which aims to support multiple boards,
147 generally using a flattened device tree passed from the bootloader
148 using the boot protocol defined in the UHI (Unified Hosting
149 Interface) specification.
152 bool "Alchemy processor based machines"
153 select PHYS_ADDR_T_64BIT
157 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
158 select SYS_HAS_CPU_MIPS32_R1
159 select SYS_SUPPORTS_32BIT_KERNEL
160 select SYS_SUPPORTS_APM_EMULATION
162 select SYS_SUPPORTS_ZBOOT
166 bool "Texas Instruments AR7"
168 select DMA_NONCOHERENT
172 select NO_EXCEPT_FILL
174 select SYS_HAS_CPU_MIPS32_R1
175 select SYS_HAS_EARLY_PRINTK
176 select SYS_SUPPORTS_32BIT_KERNEL
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_MIPS16
179 select SYS_SUPPORTS_ZBOOT_UART16550
184 Support for the Texas Instruments AR7 System-on-a-Chip
185 family: TNETD7100, 7200 and 7300.
188 bool "Atheros AR231x/AR531x SoC support"
191 select DMA_NONCOHERENT
194 select SYS_HAS_CPU_MIPS32_R1
195 select SYS_SUPPORTS_BIG_ENDIAN
196 select SYS_SUPPORTS_32BIT_KERNEL
197 select SYS_HAS_EARLY_PRINTK
199 Support for Atheros AR231x and Atheros AR531x based boards
202 bool "Atheros AR71XX/AR724X/AR913X based boards"
203 select ARCH_HAS_RESET_CONTROLLER
207 select DMA_NONCOHERENT
214 select SYS_HAS_CPU_MIPS32_R2
215 select SYS_HAS_EARLY_PRINTK
216 select SYS_SUPPORTS_32BIT_KERNEL
217 select SYS_SUPPORTS_BIG_ENDIAN
218 select SYS_SUPPORTS_MIPS16
219 select SYS_SUPPORTS_ZBOOT_UART_PROM
221 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
223 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
226 bool "Broadcom Generic BMIPS kernel"
227 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
228 select ARCH_HAS_PHYS_TO_DMA
230 select NO_EXCEPT_FILL
236 select BCM6345_L1_IRQ
237 select BCM7038_L1_IRQ
238 select BCM7120_L2_IRQ
239 select BRCMSTB_L2_IRQ
241 select DMA_NONCOHERENT
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_LITTLE_ENDIAN
244 select SYS_SUPPORTS_BIG_ENDIAN
245 select SYS_SUPPORTS_HIGHMEM
246 select SYS_HAS_CPU_BMIPS32_3300
247 select SYS_HAS_CPU_BMIPS4350
248 select SYS_HAS_CPU_BMIPS4380
249 select SYS_HAS_CPU_BMIPS5000
251 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
252 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
253 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
254 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
255 select HARDIRQS_SW_RESEND
257 Build a generic DT-based kernel image that boots on select
258 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
259 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
260 must be set appropriately for your board.
263 bool "Broadcom BCM47XX based boards"
267 select DMA_NONCOHERENT
270 select SYS_HAS_CPU_MIPS32_R1
271 select NO_EXCEPT_FILL
272 select SYS_SUPPORTS_32BIT_KERNEL
273 select SYS_SUPPORTS_LITTLE_ENDIAN
274 select SYS_SUPPORTS_MIPS16
275 select SYS_SUPPORTS_ZBOOT
276 select SYS_HAS_EARLY_PRINTK
277 select USE_GENERIC_EARLY_PRINTK_8250
279 select LEDS_GPIO_REGISTER
282 select BCM47XX_SSB if !BCM47XX_BCMA
284 Support for BCM47XX based boards
287 bool "Broadcom BCM63XX based boards"
292 select DMA_NONCOHERENT
294 select SYS_SUPPORTS_32BIT_KERNEL
295 select SYS_SUPPORTS_BIG_ENDIAN
296 select SYS_HAS_EARLY_PRINTK
297 select SYS_HAS_CPU_BMIPS32_3300
298 select SYS_HAS_CPU_BMIPS4350
299 select SYS_HAS_CPU_BMIPS4380
303 select MIPS_L1_CACHE_SHIFT_4
306 Support for BCM63XX based boards
313 select DMA_NONCOHERENT
319 select PCI_GT64XXX_PCI0
320 select SYS_HAS_CPU_NEVADA
321 select SYS_HAS_EARLY_PRINTK
322 select SYS_SUPPORTS_32BIT_KERNEL
323 select SYS_SUPPORTS_64BIT_KERNEL
324 select SYS_SUPPORTS_LITTLE_ENDIAN
325 select USE_GENERIC_EARLY_PRINTK_8250
327 config MACH_DECSTATION
331 select CEVT_R4K if CPU_R4X00
333 select CSRC_R4K if CPU_R4X00
334 select CPU_DADDI_WORKAROUNDS if 64BIT
335 select CPU_R4000_WORKAROUNDS if 64BIT
336 select CPU_R4400_WORKAROUNDS if 64BIT
337 select DMA_NONCOHERENT
340 select SYS_HAS_CPU_R3000
341 select SYS_HAS_CPU_R4X00
342 select SYS_SUPPORTS_32BIT_KERNEL
343 select SYS_SUPPORTS_64BIT_KERNEL
344 select SYS_SUPPORTS_LITTLE_ENDIAN
345 select SYS_SUPPORTS_128HZ
346 select SYS_SUPPORTS_256HZ
347 select SYS_SUPPORTS_1024HZ
348 select MIPS_L1_CACHE_SHIFT_4
350 This enables support for DEC's MIPS based workstations. For details
351 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
352 DECstation porting pages on <http://decstation.unix-ag.org/>.
354 If you have one of the following DECstation Models you definitely
355 want to choose R4xx0 for the CPU Type:
362 otherwise choose R3000.
365 bool "Jazz family of machines"
366 select ARCH_MIGHT_HAVE_PC_PARPORT
367 select ARCH_MIGHT_HAVE_PC_SERIO
370 select ARCH_MAY_HAVE_PC_FDC
373 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
374 select GENERIC_ISA_DMA
375 select HAVE_PCSPKR_PLATFORM
380 select SYS_HAS_CPU_R4X00
381 select SYS_SUPPORTS_32BIT_KERNEL
382 select SYS_SUPPORTS_64BIT_KERNEL
383 select SYS_SUPPORTS_100HZ
385 This a family of machines based on the MIPS R4030 chipset which was
386 used by several vendors to build RISC/os and Windows NT workstations.
387 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
388 Olivetti M700-10 workstations.
391 bool "Ingenic SoC based machines"
392 select SYS_SUPPORTS_32BIT_KERNEL
393 select SYS_SUPPORTS_LITTLE_ENDIAN
394 select SYS_SUPPORTS_ZBOOT_UART16550
395 select CPU_SUPPORTS_HUGEPAGES
396 select DMA_NONCOHERENT
401 select GENERIC_IRQ_CHIP
402 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
407 bool "Lantiq based platforms"
408 select DMA_NONCOHERENT
412 select SYS_HAS_CPU_MIPS32_R1
413 select SYS_HAS_CPU_MIPS32_R2
414 select SYS_SUPPORTS_BIG_ENDIAN
415 select SYS_SUPPORTS_32BIT_KERNEL
416 select SYS_SUPPORTS_MIPS16
417 select SYS_SUPPORTS_MULTITHREADING
418 select SYS_SUPPORTS_VPE_LOADER
419 select SYS_HAS_EARLY_PRINTK
426 select PINCTRL_LANTIQ
427 select ARCH_HAS_RESET_CONTROLLER
428 select RESET_CONTROLLER
431 bool "LASAT Networks platforms"
435 select DMA_NONCOHERENT
436 select SYS_HAS_EARLY_PRINTK
439 select PCI_GT64XXX_PCI0
441 select R5000_CPU_SCACHE
442 select SYS_HAS_CPU_R5000
443 select SYS_SUPPORTS_32BIT_KERNEL
444 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
445 select SYS_SUPPORTS_LITTLE_ENDIAN
447 config MACH_LOONGSON32
448 bool "Loongson-1 family of machines"
449 select SYS_SUPPORTS_ZBOOT
451 This enables support for the Loongson-1 family of machines.
453 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
454 the Institute of Computing Technology (ICT), Chinese Academy of
457 config MACH_LOONGSON64
458 bool "Loongson-2/3 family of machines"
459 select SYS_SUPPORTS_ZBOOT
461 This enables the support of Loongson-2/3 family of machines.
463 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
464 family of multi-core CPUs. They are both 64-bit general-purpose
465 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
466 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
467 in the People's Republic of China. The chief architect is Professor
470 config MACH_PISTACHIO
471 bool "IMG Pistachio SoC based boards"
475 select CLKSRC_MIPS_GIC
478 select DMA_NONCOHERENT
483 select MIPS_CPU_SCACHE
487 select SYS_HAS_CPU_MIPS32_R2
488 select SYS_SUPPORTS_32BIT_KERNEL
489 select SYS_SUPPORTS_LITTLE_ENDIAN
490 select SYS_SUPPORTS_MIPS_CPS
491 select SYS_SUPPORTS_MULTITHREADING
492 select SYS_SUPPORTS_RELOCATABLE
493 select SYS_SUPPORTS_ZBOOT
494 select SYS_HAS_EARLY_PRINTK
495 select USE_GENERIC_EARLY_PRINTK_8250
498 This enables support for the IMG Pistachio SoC platform.
501 bool "MIPS Malta board"
502 select ARCH_MAY_HAVE_PC_FDC
503 select ARCH_MIGHT_HAVE_PC_PARPORT
504 select ARCH_MIGHT_HAVE_PC_SERIO
509 select CLKSRC_MIPS_GIC
512 select DMA_MAYBE_COHERENT
513 select GENERIC_ISA_DMA
514 select HAVE_PCSPKR_PLATFORM
521 select MIPS_CPU_SCACHE
523 select MIPS_L1_CACHE_SHIFT_6
525 select PCI_GT64XXX_PCI0
528 select SYS_HAS_CPU_MIPS32_R1
529 select SYS_HAS_CPU_MIPS32_R2
530 select SYS_HAS_CPU_MIPS32_R3_5
531 select SYS_HAS_CPU_MIPS32_R5
532 select SYS_HAS_CPU_MIPS32_R6
533 select SYS_HAS_CPU_MIPS64_R1
534 select SYS_HAS_CPU_MIPS64_R2
535 select SYS_HAS_CPU_MIPS64_R6
536 select SYS_HAS_CPU_NEVADA
537 select SYS_HAS_CPU_RM7000
538 select SYS_SUPPORTS_32BIT_KERNEL
539 select SYS_SUPPORTS_64BIT_KERNEL
540 select SYS_SUPPORTS_BIG_ENDIAN
541 select SYS_SUPPORTS_HIGHMEM
542 select SYS_SUPPORTS_LITTLE_ENDIAN
543 select SYS_SUPPORTS_MICROMIPS
544 select SYS_SUPPORTS_MIPS16
545 select SYS_SUPPORTS_MIPS_CMP
546 select SYS_SUPPORTS_MIPS_CPS
547 select SYS_SUPPORTS_MULTITHREADING
548 select SYS_SUPPORTS_RELOCATABLE
549 select SYS_SUPPORTS_SMARTMIPS
550 select SYS_SUPPORTS_VPE_LOADER
551 select SYS_SUPPORTS_ZBOOT
553 select ZONE_DMA32 if 64BIT
555 This enables support for the MIPS Technologies Malta evaluation
559 bool "Microchip PIC32 Family"
561 This enables support for the Microchip PIC32 family of platforms.
563 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
567 bool "NEC EMMA2RH Mark-eins board"
571 This enables support for the NEC Electronics Mark-eins boards.
574 bool "NEC VR4100 series based machines"
577 select SYS_HAS_CPU_VR41XX
578 select SYS_SUPPORTS_MIPS16
582 bool "NXP STB220 board"
585 Support for NXP Semiconductors STB220 Development Board.
592 Support for NXP Semiconductors STB225 Development Board.
595 bool "PMC-Sierra MSP chipsets"
598 select DMA_NONCOHERENT
600 select NO_EXCEPT_FILL
602 select SYS_HAS_CPU_MIPS32_R1
603 select SYS_HAS_CPU_MIPS32_R2
604 select SYS_SUPPORTS_32BIT_KERNEL
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_MIPS16
609 select SERIAL_8250_CONSOLE
610 select USB_EHCI_BIG_ENDIAN_MMIO
611 select USB_EHCI_BIG_ENDIAN_DESC
613 This adds support for the PMC-Sierra family of Multi-Service
614 Processor System-On-A-Chips. These parts include a number
615 of integrated peripherals, interfaces and DSPs in addition to
616 a variety of MIPS cores.
619 bool "Ralink based machines"
623 select DMA_NONCOHERENT
626 select SYS_HAS_CPU_MIPS32_R1
627 select SYS_HAS_CPU_MIPS32_R2
628 select SYS_SUPPORTS_32BIT_KERNEL
629 select SYS_SUPPORTS_LITTLE_ENDIAN
630 select SYS_SUPPORTS_MIPS16
631 select SYS_HAS_EARLY_PRINTK
633 select ARCH_HAS_RESET_CONTROLLER
634 select RESET_CONTROLLER
637 bool "SGI IP22 (Indy/Indigo2)"
640 select ARCH_MIGHT_HAVE_PC_SERIO
644 select DEFAULT_SGI_PARTITION
645 select DMA_NONCOHERENT
649 select IP22_CPU_SCACHE
651 select GENERIC_ISA_DMA_SUPPORT_BROKEN
653 select SGI_HAS_INDYDOG
659 select SYS_HAS_CPU_R4X00
660 select SYS_HAS_CPU_R5000
662 # Disable EARLY_PRINTK for now since it leads to overwritten prom
663 # memory during early boot on some machines.
665 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
666 # for a more details discussion
668 # select SYS_HAS_EARLY_PRINTK
669 select SYS_SUPPORTS_32BIT_KERNEL
670 select SYS_SUPPORTS_64BIT_KERNEL
671 select SYS_SUPPORTS_BIG_ENDIAN
672 select MIPS_L1_CACHE_SHIFT_7
674 This are the SGI Indy, Challenge S and Indigo2, as well as certain
675 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
676 that runs on these, say Y here.
679 bool "SGI IP27 (Origin200/2000)"
680 select ARCH_HAS_PHYS_TO_DMA
684 select DEFAULT_SGI_PARTITION
685 select SYS_HAS_EARLY_PRINTK
688 select IRQ_DOMAIN_HIERARCHY
689 select NR_CPUS_DEFAULT_64
690 select PCI_DRIVERS_GENERIC
691 select PCI_XTALK_BRIDGE
692 select SYS_HAS_CPU_R10000
693 select SYS_SUPPORTS_64BIT_KERNEL
694 select SYS_SUPPORTS_BIG_ENDIAN
695 select SYS_SUPPORTS_NUMA
696 select SYS_SUPPORTS_SMP
697 select MIPS_L1_CACHE_SHIFT_7
699 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
700 workstations. To compile a Linux kernel that runs on these, say Y
704 bool "SGI IP28 (Indigo2 R10k)"
707 select ARCH_MIGHT_HAVE_PC_SERIO
711 select DEFAULT_SGI_PARTITION
712 select DMA_NONCOHERENT
713 select GENERIC_ISA_DMA_SUPPORT_BROKEN
719 select SGI_HAS_INDYDOG
725 select SYS_HAS_CPU_R10000
727 # Disable EARLY_PRINTK for now since it leads to overwritten prom
728 # memory during early boot on some machines.
730 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
731 # for a more details discussion
733 # select SYS_HAS_EARLY_PRINTK
734 select SYS_SUPPORTS_64BIT_KERNEL
735 select SYS_SUPPORTS_BIG_ENDIAN
736 select MIPS_L1_CACHE_SHIFT_7
738 This is the SGI Indigo2 with R10000 processor. To compile a Linux
739 kernel that runs on these, say Y here.
743 select ARCH_HAS_PHYS_TO_DMA
749 select DMA_NONCOHERENT
752 select R5000_CPU_SCACHE
753 select RM7000_CPU_SCACHE
754 select SYS_HAS_CPU_R5000
755 select SYS_HAS_CPU_R10000 if BROKEN
756 select SYS_HAS_CPU_RM7000
757 select SYS_HAS_CPU_NEVADA
758 select SYS_SUPPORTS_64BIT_KERNEL
759 select SYS_SUPPORTS_BIG_ENDIAN
761 If you want this kernel to run on SGI O2 workstation, say Y here.
764 bool "Sibyte BCM91120C-CRhine"
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 BCM91120x-Carmel"
775 select SIBYTE_BCM1120
777 select SYS_HAS_CPU_SB1
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_LITTLE_ENDIAN
782 bool "Sibyte BCM91125C-CRhone"
784 select SIBYTE_BCM1125
786 select SYS_HAS_CPU_SB1
787 select SYS_SUPPORTS_BIG_ENDIAN
788 select SYS_SUPPORTS_HIGHMEM
789 select SYS_SUPPORTS_LITTLE_ENDIAN
792 bool "Sibyte BCM91125E-Rhone"
794 select SIBYTE_BCM1125H
796 select SYS_HAS_CPU_SB1
797 select SYS_SUPPORTS_BIG_ENDIAN
798 select SYS_SUPPORTS_LITTLE_ENDIAN
801 bool "Sibyte BCM91250A-SWARM"
803 select HAVE_PATA_PLATFORM
806 select SYS_HAS_CPU_SB1
807 select SYS_SUPPORTS_BIG_ENDIAN
808 select SYS_SUPPORTS_HIGHMEM
809 select SYS_SUPPORTS_LITTLE_ENDIAN
810 select ZONE_DMA32 if 64BIT
811 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
813 config SIBYTE_LITTLESUR
814 bool "Sibyte BCM91250C2-LittleSur"
816 select HAVE_PATA_PLATFORM
819 select SYS_HAS_CPU_SB1
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select SYS_SUPPORTS_HIGHMEM
822 select SYS_SUPPORTS_LITTLE_ENDIAN
823 select ZONE_DMA32 if 64BIT
825 config SIBYTE_SENTOSA
826 bool "Sibyte BCM91250E-Sentosa"
830 select SYS_HAS_CPU_SB1
831 select SYS_SUPPORTS_BIG_ENDIAN
832 select SYS_SUPPORTS_LITTLE_ENDIAN
833 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
836 bool "Sibyte BCM91480B-BigSur"
838 select NR_CPUS_DEFAULT_4
839 select SIBYTE_BCM1x80
841 select SYS_HAS_CPU_SB1
842 select SYS_SUPPORTS_BIG_ENDIAN
843 select SYS_SUPPORTS_HIGHMEM
844 select SYS_SUPPORTS_LITTLE_ENDIAN
845 select ZONE_DMA32 if 64BIT
846 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
849 bool "SNI RM200/300/400"
850 select FW_ARC if CPU_LITTLE_ENDIAN
851 select FW_ARC32 if CPU_LITTLE_ENDIAN
852 select FW_SNIPROM if CPU_BIG_ENDIAN
853 select ARCH_MAY_HAVE_PC_FDC
854 select ARCH_MIGHT_HAVE_PC_PARPORT
855 select ARCH_MIGHT_HAVE_PC_SERIO
859 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
860 select DMA_NONCOHERENT
861 select GENERIC_ISA_DMA
863 select HAVE_PCSPKR_PLATFORM
869 select MIPS_L1_CACHE_SHIFT_6
870 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
871 select SYS_HAS_CPU_R4X00
872 select SYS_HAS_CPU_R5000
873 select SYS_HAS_CPU_R10000
874 select R5000_CPU_SCACHE
875 select SYS_HAS_EARLY_PRINTK
876 select SYS_SUPPORTS_32BIT_KERNEL
877 select SYS_SUPPORTS_64BIT_KERNEL
878 select SYS_SUPPORTS_BIG_ENDIAN
879 select SYS_SUPPORTS_HIGHMEM
880 select SYS_SUPPORTS_LITTLE_ENDIAN
882 The SNI RM200/300/400 are MIPS-based machines manufactured by
883 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
884 Technology and now in turn merged with Fujitsu. Say Y here to
885 support this machine type.
888 bool "Toshiba TX39 series based machines"
891 bool "Toshiba TX49 series based machines"
893 config MIKROTIK_RB532
894 bool "Mikrotik RB532 boards"
897 select DMA_NONCOHERENT
900 select SYS_HAS_CPU_MIPS32_R1
901 select SYS_SUPPORTS_32BIT_KERNEL
902 select SYS_SUPPORTS_LITTLE_ENDIAN
906 select MIPS_L1_CACHE_SHIFT_4
908 Support the Mikrotik(tm) RouterBoard 532 series,
909 based on the IDT RC32434 SoC.
911 config CAVIUM_OCTEON_SOC
912 bool "Cavium Networks Octeon SoC based boards"
914 select ARCH_HAS_PHYS_TO_DMA
916 select PHYS_ADDR_T_64BIT
917 select SYS_SUPPORTS_64BIT_KERNEL
918 select SYS_SUPPORTS_BIG_ENDIAN
920 select EDAC_ATOMIC_SCRUB
921 select SYS_SUPPORTS_LITTLE_ENDIAN
922 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
923 select SYS_HAS_EARLY_PRINTK
924 select SYS_HAS_CPU_CAVIUM_OCTEON
931 select ARCH_SPARSEMEM_ENABLE
932 select SYS_SUPPORTS_SMP
933 select NR_CPUS_DEFAULT_64
934 select MIPS_NR_CPU_NR_MAP_1024
936 select MTD_COMPLEX_MAPPINGS
938 select SYS_SUPPORTS_RELOCATABLE
940 This option supports all of the Octeon reference boards from Cavium
941 Networks. It builds a kernel that dynamically determines the Octeon
942 CPU type and supports all known board reference implementations.
943 Some of the supported boards are:
950 Say Y here for most Octeon reference boards.
953 bool "Netlogic XLR/XLS based systems"
956 select SYS_HAS_CPU_XLR
957 select SYS_SUPPORTS_SMP
960 select SYS_SUPPORTS_32BIT_KERNEL
961 select SYS_SUPPORTS_64BIT_KERNEL
962 select PHYS_ADDR_T_64BIT
963 select SYS_SUPPORTS_BIG_ENDIAN
964 select SYS_SUPPORTS_HIGHMEM
965 select NR_CPUS_DEFAULT_32
969 select ZONE_DMA32 if 64BIT
971 select SYS_HAS_EARLY_PRINTK
972 select SYS_SUPPORTS_ZBOOT
973 select SYS_SUPPORTS_ZBOOT_UART16550
975 Support for systems based on Netlogic XLR and XLS processors.
976 Say Y here if you have a XLR or XLS based board.
979 bool "Netlogic XLP based systems"
982 select SYS_HAS_CPU_XLP
983 select SYS_SUPPORTS_SMP
985 select SYS_SUPPORTS_32BIT_KERNEL
986 select SYS_SUPPORTS_64BIT_KERNEL
987 select PHYS_ADDR_T_64BIT
989 select SYS_SUPPORTS_BIG_ENDIAN
990 select SYS_SUPPORTS_LITTLE_ENDIAN
991 select SYS_SUPPORTS_HIGHMEM
992 select NR_CPUS_DEFAULT_32
996 select ZONE_DMA32 if 64BIT
998 select SYS_HAS_EARLY_PRINTK
1000 select SYS_SUPPORTS_ZBOOT
1001 select SYS_SUPPORTS_ZBOOT_UART16550
1003 This board is based on Netlogic XLP Processor.
1004 Say Y here if you have a XLP based board.
1006 config MIPS_PARAVIRT
1007 bool "Para-Virtualized guest system"
1010 select SYS_SUPPORTS_64BIT_KERNEL
1011 select SYS_SUPPORTS_32BIT_KERNEL
1012 select SYS_SUPPORTS_BIG_ENDIAN
1013 select SYS_SUPPORTS_SMP
1014 select NR_CPUS_DEFAULT_4
1015 select SYS_HAS_EARLY_PRINTK
1016 select SYS_HAS_CPU_MIPS32_R2
1017 select SYS_HAS_CPU_MIPS64_R2
1018 select SYS_HAS_CPU_CAVIUM_OCTEON
1020 select SWAP_IO_SPACE
1022 This option supports guest running under ????
1026 source "arch/mips/alchemy/Kconfig"
1027 source "arch/mips/ath25/Kconfig"
1028 source "arch/mips/ath79/Kconfig"
1029 source "arch/mips/bcm47xx/Kconfig"
1030 source "arch/mips/bcm63xx/Kconfig"
1031 source "arch/mips/bmips/Kconfig"
1032 source "arch/mips/generic/Kconfig"
1033 source "arch/mips/jazz/Kconfig"
1034 source "arch/mips/jz4740/Kconfig"
1035 source "arch/mips/lantiq/Kconfig"
1036 source "arch/mips/lasat/Kconfig"
1037 source "arch/mips/pic32/Kconfig"
1038 source "arch/mips/pistachio/Kconfig"
1039 source "arch/mips/pmcs-msp71xx/Kconfig"
1040 source "arch/mips/ralink/Kconfig"
1041 source "arch/mips/sgi-ip27/Kconfig"
1042 source "arch/mips/sibyte/Kconfig"
1043 source "arch/mips/txx9/Kconfig"
1044 source "arch/mips/vr41xx/Kconfig"
1045 source "arch/mips/cavium-octeon/Kconfig"
1046 source "arch/mips/loongson32/Kconfig"
1047 source "arch/mips/loongson64/Kconfig"
1048 source "arch/mips/netlogic/Kconfig"
1049 source "arch/mips/paravirt/Kconfig"
1053 config GENERIC_HWEIGHT
1057 config GENERIC_CALIBRATE_DELAY
1061 config SCHED_OMIT_FRAME_POINTER
1066 # Select some configuration options automatically based on user selections.
1071 config ARCH_MAY_HAVE_PC_FDC
1107 config MIPS_CLOCK_VSYSCALL
1108 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1117 config ARCH_SUPPORTS_UPROBES
1120 config DMA_MAYBE_COHERENT
1121 select ARCH_HAS_DMA_COHERENCE_H
1122 select DMA_NONCOHERENT
1125 config DMA_PERDEV_COHERENT
1127 select ARCH_HAS_SETUP_DMA_OPS
1128 select DMA_NONCOHERENT
1130 config DMA_NONCOHERENT
1133 # MIPS allows mixing "slightly different" Cacheability and Coherency
1134 # Attribute bits. It is believed that the uncached access through
1135 # KSEG1 and the implementation specific "uncached accelerated" used
1136 # by pgprot_writcombine can be mixed, and the latter sometimes provides
1137 # significant advantages.
1139 select ARCH_HAS_DMA_WRITE_COMBINE
1140 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1141 select ARCH_HAS_UNCACHED_SEGMENT
1142 select NEED_DMA_MAP_STATE
1143 select ARCH_HAS_DMA_COHERENT_TO_PFN
1144 select DMA_NONCOHERENT_CACHE_SYNC
1146 config SYS_HAS_EARLY_PRINTK
1149 config SYS_SUPPORTS_HOTPLUG_CPU
1152 config MIPS_BONITO64
1167 config NO_IOPORT_MAP
1172 default y if !CPU_HAS_LOAD_STORE_LR
1174 config GENERIC_ISA_DMA
1176 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1179 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1181 select GENERIC_ISA_DMA
1186 config HOLES_IN_ZONE
1189 config SYS_SUPPORTS_RELOCATABLE
1192 Selected if the platform supports relocating the kernel.
1193 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1194 to allow access to command line and entropy sources.
1196 config MIPS_CBPF_JIT
1198 depends on BPF_JIT && HAVE_CBPF_JIT
1200 config MIPS_EBPF_JIT
1202 depends on BPF_JIT && HAVE_EBPF_JIT
1206 # Endianness selection. Sufficiently obscure so many users don't know what to
1207 # answer,so we try hard to limit the available choices. Also the use of a
1208 # choice statement should be more obvious to the user.
1211 prompt "Endianness selection"
1213 Some MIPS machines can be configured for either little or big endian
1214 byte order. These modes require different kernels and a different
1215 Linux distribution. In general there is one preferred byteorder for a
1216 particular system but some systems are just as commonly used in the
1217 one or the other endianness.
1219 config CPU_BIG_ENDIAN
1221 depends on SYS_SUPPORTS_BIG_ENDIAN
1223 config CPU_LITTLE_ENDIAN
1224 bool "Little endian"
1225 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1232 config SYS_SUPPORTS_APM_EMULATION
1235 config SYS_SUPPORTS_BIG_ENDIAN
1238 config SYS_SUPPORTS_LITTLE_ENDIAN
1241 config SYS_SUPPORTS_HUGETLBFS
1243 depends on CPU_SUPPORTS_HUGEPAGES
1246 config MIPS_HUGE_TLB_SUPPORT
1247 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1264 config PCI_GT64XXX_PCI0
1267 config PCI_XTALK_BRIDGE
1270 config NO_EXCEPT_FILL
1277 select DMA_NONCOHERENT
1279 select SWAP_IO_SPACE
1280 select SYS_HAS_CPU_R5500
1281 select SYS_SUPPORTS_32BIT_KERNEL
1282 select SYS_SUPPORTS_64BIT_KERNEL
1283 select SYS_SUPPORTS_BIG_ENDIAN
1290 select DMA_NONCOHERENT
1291 select SYS_HAS_CPU_MIPS32_R2
1292 select SYS_SUPPORTS_32BIT_KERNEL
1293 select SYS_SUPPORTS_LITTLE_ENDIAN
1294 select SYS_SUPPORTS_BIG_ENDIAN
1295 select SYS_SUPPORTS_MIPS16
1296 select CPU_MIPSR2_IRQ_VI
1305 config SWAP_IO_SPACE
1308 config SGI_HAS_INDYDOG
1320 config SGI_HAS_ZILOG
1323 config SGI_HAS_I8042
1326 config DEFAULT_SGI_PARTITION
1338 config MIPS_L1_CACHE_SHIFT_4
1341 config MIPS_L1_CACHE_SHIFT_5
1344 config MIPS_L1_CACHE_SHIFT_6
1347 config MIPS_L1_CACHE_SHIFT_7
1350 config MIPS_L1_CACHE_SHIFT
1352 default "7" if MIPS_L1_CACHE_SHIFT_7
1353 default "6" if MIPS_L1_CACHE_SHIFT_6
1354 default "5" if MIPS_L1_CACHE_SHIFT_5
1355 default "4" if MIPS_L1_CACHE_SHIFT_4
1358 config HAVE_STD_PC_SERIAL_PORT
1362 bool "ARC console support"
1363 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1367 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1372 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1381 menu "CPU selection"
1387 config CPU_LOONGSON3
1388 bool "Loongson 3 CPU"
1389 depends on SYS_HAS_CPU_LOONGSON3
1390 select ARCH_HAS_PHYS_TO_DMA
1391 select CPU_SUPPORTS_64BIT_KERNEL
1392 select CPU_SUPPORTS_HIGHMEM
1393 select CPU_SUPPORTS_HUGEPAGES
1394 select CPU_HAS_LOAD_STORE_LR
1395 select WEAK_ORDERING
1396 select WEAK_REORDERING_BEYOND_LLSC
1397 select MIPS_PGD_C0_CONTEXT
1398 select MIPS_L1_CACHE_SHIFT_6
1399 select MIPS_FP_SUPPORT
1403 The Loongson 3 processor implements the MIPS64R2 instruction
1404 set with many extensions.
1406 config LOONGSON3_ENHANCEMENT
1407 bool "New Loongson 3 CPU Enhancements"
1410 select CPU_HAS_PREFETCH
1411 depends on CPU_LOONGSON3
1413 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1414 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1415 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1416 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1417 Fast TLB refill support, etc.
1419 This option enable those enhancements which are not probed at run
1420 time. If you want a generic kernel to run on all Loongson 3 machines,
1421 please say 'N' here. If you want a high-performance kernel to run on
1422 new Loongson 3 machines only, please say 'Y' here.
1424 config CPU_LOONGSON3_WORKAROUNDS
1425 bool "Old Loongson 3 LLSC Workarounds"
1427 depends on CPU_LOONGSON3
1429 Loongson 3 processors have the llsc issues which require workarounds.
1430 Without workarounds the system may hang unexpectedly.
1432 Newer Loongson 3 will fix these issues and no workarounds are needed.
1433 The workarounds have no significant side effect on them but may
1434 decrease the performance of the system so this option should be
1435 disabled unless the kernel is intended to be run on old systems.
1437 If unsure, please say Y.
1439 config CPU_LOONGSON2E
1441 depends on SYS_HAS_CPU_LOONGSON2E
1442 select CPU_LOONGSON2
1444 The Loongson 2E processor implements the MIPS III instruction set
1445 with many extensions.
1447 It has an internal FPGA northbridge, which is compatible to
1450 config CPU_LOONGSON2F
1452 depends on SYS_HAS_CPU_LOONGSON2F
1453 select CPU_LOONGSON2
1456 The Loongson 2F processor implements the MIPS III instruction set
1457 with many extensions.
1459 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1460 have a similar programming interface with FPGA northbridge used in
1463 config CPU_LOONGSON1B
1465 depends on SYS_HAS_CPU_LOONGSON1B
1466 select CPU_LOONGSON1
1467 select LEDS_GPIO_REGISTER
1469 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1470 Release 1 instruction set and part of the MIPS32 Release 2
1473 config CPU_LOONGSON1C
1475 depends on SYS_HAS_CPU_LOONGSON1C
1476 select CPU_LOONGSON1
1477 select LEDS_GPIO_REGISTER
1479 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1480 Release 1 instruction set and part of the MIPS32 Release 2
1483 config CPU_MIPS32_R1
1484 bool "MIPS32 Release 1"
1485 depends on SYS_HAS_CPU_MIPS32_R1
1486 select CPU_HAS_PREFETCH
1487 select CPU_HAS_LOAD_STORE_LR
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_HIGHMEM
1491 Choose this option to build a kernel for release 1 or later of the
1492 MIPS32 architecture. Most modern embedded systems with a 32-bit
1493 MIPS processor are based on a MIPS32 processor. If you know the
1494 specific type of processor in your system, choose those that one
1495 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1496 Release 2 of the MIPS32 architecture is available since several
1497 years so chances are you even have a MIPS32 Release 2 processor
1498 in which case you should choose CPU_MIPS32_R2 instead for better
1501 config CPU_MIPS32_R2
1502 bool "MIPS32 Release 2"
1503 depends on SYS_HAS_CPU_MIPS32_R2
1504 select CPU_HAS_PREFETCH
1505 select CPU_HAS_LOAD_STORE_LR
1506 select CPU_SUPPORTS_32BIT_KERNEL
1507 select CPU_SUPPORTS_HIGHMEM
1508 select CPU_SUPPORTS_MSA
1511 Choose this option to build a kernel for release 2 or later of the
1512 MIPS32 architecture. Most modern embedded systems with a 32-bit
1513 MIPS processor are based on a MIPS32 processor. If you know the
1514 specific type of processor in your system, choose those that one
1515 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1517 config CPU_MIPS32_R6
1518 bool "MIPS32 Release 6"
1519 depends on SYS_HAS_CPU_MIPS32_R6
1520 select CPU_HAS_PREFETCH
1521 select CPU_SUPPORTS_32BIT_KERNEL
1522 select CPU_SUPPORTS_HIGHMEM
1523 select CPU_SUPPORTS_MSA
1525 select MIPS_O32_FP64_SUPPORT
1527 Choose this option to build a kernel for release 6 or later of the
1528 MIPS32 architecture. New MIPS processors, starting with the Warrior
1529 family, are based on a MIPS32r6 processor. If you own an older
1530 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1532 config CPU_MIPS64_R1
1533 bool "MIPS64 Release 1"
1534 depends on SYS_HAS_CPU_MIPS64_R1
1535 select CPU_HAS_PREFETCH
1536 select CPU_HAS_LOAD_STORE_LR
1537 select CPU_SUPPORTS_32BIT_KERNEL
1538 select CPU_SUPPORTS_64BIT_KERNEL
1539 select CPU_SUPPORTS_HIGHMEM
1540 select CPU_SUPPORTS_HUGEPAGES
1542 Choose this option to build a kernel for release 1 or later of the
1543 MIPS64 architecture. Many modern embedded systems with a 64-bit
1544 MIPS processor are based on a MIPS64 processor. If you know the
1545 specific type of processor in your system, choose those that one
1546 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1547 Release 2 of the MIPS64 architecture is available since several
1548 years so chances are you even have a MIPS64 Release 2 processor
1549 in which case you should choose CPU_MIPS64_R2 instead for better
1552 config CPU_MIPS64_R2
1553 bool "MIPS64 Release 2"
1554 depends on SYS_HAS_CPU_MIPS64_R2
1555 select CPU_HAS_PREFETCH
1556 select CPU_HAS_LOAD_STORE_LR
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_64BIT_KERNEL
1559 select CPU_SUPPORTS_HIGHMEM
1560 select CPU_SUPPORTS_HUGEPAGES
1561 select CPU_SUPPORTS_MSA
1564 Choose this option to build a kernel for release 2 or later of the
1565 MIPS64 architecture. Many modern embedded systems with a 64-bit
1566 MIPS processor are based on a MIPS64 processor. If you know the
1567 specific type of processor in your system, choose those that one
1568 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1570 config CPU_MIPS64_R6
1571 bool "MIPS64 Release 6"
1572 depends on SYS_HAS_CPU_MIPS64_R6
1573 select CPU_HAS_PREFETCH
1574 select CPU_SUPPORTS_32BIT_KERNEL
1575 select CPU_SUPPORTS_64BIT_KERNEL
1576 select CPU_SUPPORTS_HIGHMEM
1577 select CPU_SUPPORTS_HUGEPAGES
1578 select CPU_SUPPORTS_MSA
1579 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1582 Choose this option to build a kernel for release 6 or later of the
1583 MIPS64 architecture. New MIPS processors, starting with the Warrior
1584 family, are based on a MIPS64r6 processor. If you own an older
1585 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1589 depends on SYS_HAS_CPU_R3000
1591 select CPU_HAS_LOAD_STORE_LR
1593 select CPU_SUPPORTS_32BIT_KERNEL
1594 select CPU_SUPPORTS_HIGHMEM
1596 Please make sure to pick the right CPU type. Linux/MIPS is not
1597 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1598 *not* work on R4000 machines and vice versa. However, since most
1599 of the supported machines have an R4000 (or similar) CPU, R4x00
1600 might be a safe bet. If the resulting kernel does not work,
1601 try to recompile with R3000.
1605 depends on SYS_HAS_CPU_TX39XX
1606 select CPU_SUPPORTS_32BIT_KERNEL
1607 select CPU_HAS_LOAD_STORE_LR
1612 depends on SYS_HAS_CPU_VR41XX
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_HAS_LOAD_STORE_LR
1617 The options selects support for the NEC VR4100 series of processors.
1618 Only choose this option if you have one of these processors as a
1619 kernel built with this option will not run on any other type of
1620 processor or vice versa.
1624 depends on SYS_HAS_CPU_R4X00
1625 select CPU_SUPPORTS_32BIT_KERNEL
1626 select CPU_SUPPORTS_64BIT_KERNEL
1627 select CPU_SUPPORTS_HUGEPAGES
1628 select CPU_HAS_LOAD_STORE_LR
1630 MIPS Technologies R4000-series processors other than 4300, including
1631 the R4000, R4400, R4600, and 4700.
1635 depends on SYS_HAS_CPU_TX49XX
1636 select CPU_HAS_PREFETCH
1637 select CPU_HAS_LOAD_STORE_LR
1638 select CPU_SUPPORTS_32BIT_KERNEL
1639 select CPU_SUPPORTS_64BIT_KERNEL
1640 select CPU_SUPPORTS_HUGEPAGES
1644 depends on SYS_HAS_CPU_R5000
1645 select CPU_SUPPORTS_32BIT_KERNEL
1646 select CPU_SUPPORTS_64BIT_KERNEL
1647 select CPU_SUPPORTS_HUGEPAGES
1648 select CPU_HAS_LOAD_STORE_LR
1650 MIPS Technologies R5000-series processors other than the Nevada.
1654 depends on SYS_HAS_CPU_R5500
1655 select CPU_SUPPORTS_32BIT_KERNEL
1656 select CPU_SUPPORTS_64BIT_KERNEL
1657 select CPU_SUPPORTS_HUGEPAGES
1658 select CPU_HAS_LOAD_STORE_LR
1660 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1665 depends on SYS_HAS_CPU_NEVADA
1666 select CPU_SUPPORTS_32BIT_KERNEL
1667 select CPU_SUPPORTS_64BIT_KERNEL
1668 select CPU_SUPPORTS_HUGEPAGES
1669 select CPU_HAS_LOAD_STORE_LR
1671 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1675 depends on SYS_HAS_CPU_R10000
1676 select CPU_HAS_PREFETCH
1677 select CPU_HAS_LOAD_STORE_LR
1678 select CPU_SUPPORTS_32BIT_KERNEL
1679 select CPU_SUPPORTS_64BIT_KERNEL
1680 select CPU_SUPPORTS_HIGHMEM
1681 select CPU_SUPPORTS_HUGEPAGES
1683 MIPS Technologies R10000-series processors.
1687 depends on SYS_HAS_CPU_RM7000
1688 select CPU_HAS_PREFETCH
1689 select CPU_HAS_LOAD_STORE_LR
1690 select CPU_SUPPORTS_32BIT_KERNEL
1691 select CPU_SUPPORTS_64BIT_KERNEL
1692 select CPU_SUPPORTS_HIGHMEM
1693 select CPU_SUPPORTS_HUGEPAGES
1697 depends on SYS_HAS_CPU_SB1
1698 select CPU_HAS_LOAD_STORE_LR
1699 select CPU_SUPPORTS_32BIT_KERNEL
1700 select CPU_SUPPORTS_64BIT_KERNEL
1701 select CPU_SUPPORTS_HIGHMEM
1702 select CPU_SUPPORTS_HUGEPAGES
1703 select WEAK_ORDERING
1705 config CPU_CAVIUM_OCTEON
1706 bool "Cavium Octeon processor"
1707 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1708 select CPU_HAS_PREFETCH
1709 select CPU_HAS_LOAD_STORE_LR
1710 select CPU_SUPPORTS_64BIT_KERNEL
1711 select WEAK_ORDERING
1712 select CPU_SUPPORTS_HIGHMEM
1713 select CPU_SUPPORTS_HUGEPAGES
1714 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1715 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1716 select MIPS_L1_CACHE_SHIFT_7
1719 The Cavium Octeon processor is a highly integrated chip containing
1720 many ethernet hardware widgets for networking tasks. The processor
1721 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1722 Full details can be found at http://www.caviumnetworks.com.
1725 bool "Broadcom BMIPS"
1726 depends on SYS_HAS_CPU_BMIPS
1728 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1729 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1730 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1731 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1732 select CPU_SUPPORTS_32BIT_KERNEL
1733 select DMA_NONCOHERENT
1735 select SWAP_IO_SPACE
1736 select WEAK_ORDERING
1737 select CPU_SUPPORTS_HIGHMEM
1738 select CPU_HAS_PREFETCH
1739 select CPU_HAS_LOAD_STORE_LR
1740 select CPU_SUPPORTS_CPUFREQ
1741 select MIPS_EXTERNAL_TIMER
1743 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1746 bool "Netlogic XLR SoC"
1747 depends on SYS_HAS_CPU_XLR
1748 select CPU_HAS_LOAD_STORE_LR
1749 select CPU_SUPPORTS_32BIT_KERNEL
1750 select CPU_SUPPORTS_64BIT_KERNEL
1751 select CPU_SUPPORTS_HIGHMEM
1752 select CPU_SUPPORTS_HUGEPAGES
1753 select WEAK_ORDERING
1754 select WEAK_REORDERING_BEYOND_LLSC
1756 Netlogic Microsystems XLR/XLS processors.
1759 bool "Netlogic XLP SoC"
1760 depends on SYS_HAS_CPU_XLP
1761 select CPU_SUPPORTS_32BIT_KERNEL
1762 select CPU_SUPPORTS_64BIT_KERNEL
1763 select CPU_SUPPORTS_HIGHMEM
1764 select WEAK_ORDERING
1765 select WEAK_REORDERING_BEYOND_LLSC
1766 select CPU_HAS_PREFETCH
1767 select CPU_HAS_LOAD_STORE_LR
1769 select CPU_SUPPORTS_HUGEPAGES
1770 select MIPS_ASID_BITS_VARIABLE
1772 Netlogic Microsystems XLP processors.
1775 config CPU_MIPS32_3_5_FEATURES
1776 bool "MIPS32 Release 3.5 Features"
1777 depends on SYS_HAS_CPU_MIPS32_R3_5
1778 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1780 Choose this option to build a kernel for release 2 or later of the
1781 MIPS32 architecture including features from the 3.5 release such as
1782 support for Enhanced Virtual Addressing (EVA).
1784 config CPU_MIPS32_3_5_EVA
1785 bool "Enhanced Virtual Addressing (EVA)"
1786 depends on CPU_MIPS32_3_5_FEATURES
1790 Choose this option if you want to enable the Enhanced Virtual
1791 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1792 One of its primary benefits is an increase in the maximum size
1793 of lowmem (up to 3GB). If unsure, say 'N' here.
1795 config CPU_MIPS32_R5_FEATURES
1796 bool "MIPS32 Release 5 Features"
1797 depends on SYS_HAS_CPU_MIPS32_R5
1798 depends on CPU_MIPS32_R2
1800 Choose this option to build a kernel for release 2 or later of the
1801 MIPS32 architecture including features from release 5 such as
1802 support for Extended Physical Addressing (XPA).
1804 config CPU_MIPS32_R5_XPA
1805 bool "Extended Physical Addressing (XPA)"
1806 depends on CPU_MIPS32_R5_FEATURES
1808 depends on !PAGE_SIZE_4KB
1809 depends on SYS_SUPPORTS_HIGHMEM
1812 select PHYS_ADDR_T_64BIT
1815 Choose this option if you want to enable the Extended Physical
1816 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1817 benefit is to increase physical addressing equal to or greater
1818 than 40 bits. Note that this has the side effect of turning on
1819 64-bit addressing which in turn makes the PTEs 64-bit in size.
1820 If unsure, say 'N' here.
1823 config CPU_NOP_WORKAROUNDS
1826 config CPU_JUMP_WORKAROUNDS
1829 config CPU_LOONGSON2F_WORKAROUNDS
1830 bool "Loongson 2F Workarounds"
1832 select CPU_NOP_WORKAROUNDS
1833 select CPU_JUMP_WORKAROUNDS
1835 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1836 require workarounds. Without workarounds the system may hang
1837 unexpectedly. For more information please refer to the gas
1838 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1840 Loongson 2F03 and later have fixed these issues and no workarounds
1841 are needed. The workarounds have no significant side effect on them
1842 but may decrease the performance of the system so this option should
1843 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1846 If unsure, please say Y.
1847 endif # CPU_LOONGSON2F
1849 config SYS_SUPPORTS_ZBOOT
1851 select HAVE_KERNEL_GZIP
1852 select HAVE_KERNEL_BZIP2
1853 select HAVE_KERNEL_LZ4
1854 select HAVE_KERNEL_LZMA
1855 select HAVE_KERNEL_LZO
1856 select HAVE_KERNEL_XZ
1858 config SYS_SUPPORTS_ZBOOT_UART16550
1860 select SYS_SUPPORTS_ZBOOT
1862 config SYS_SUPPORTS_ZBOOT_UART_PROM
1864 select SYS_SUPPORTS_ZBOOT
1866 config CPU_LOONGSON2
1868 select CPU_SUPPORTS_32BIT_KERNEL
1869 select CPU_SUPPORTS_64BIT_KERNEL
1870 select CPU_SUPPORTS_HIGHMEM
1871 select CPU_SUPPORTS_HUGEPAGES
1872 select ARCH_HAS_PHYS_TO_DMA
1873 select CPU_HAS_LOAD_STORE_LR
1875 config CPU_LOONGSON1
1879 select CPU_HAS_PREFETCH
1880 select CPU_HAS_LOAD_STORE_LR
1881 select CPU_SUPPORTS_32BIT_KERNEL
1882 select CPU_SUPPORTS_HIGHMEM
1883 select CPU_SUPPORTS_CPUFREQ
1885 config CPU_BMIPS32_3300
1886 select SMP_UP if SMP
1889 config CPU_BMIPS4350
1891 select SYS_SUPPORTS_SMP
1892 select SYS_SUPPORTS_HOTPLUG_CPU
1894 config CPU_BMIPS4380
1896 select MIPS_L1_CACHE_SHIFT_6
1897 select SYS_SUPPORTS_SMP
1898 select SYS_SUPPORTS_HOTPLUG_CPU
1901 config CPU_BMIPS5000
1903 select MIPS_CPU_SCACHE
1904 select MIPS_L1_CACHE_SHIFT_7
1905 select SYS_SUPPORTS_SMP
1906 select SYS_SUPPORTS_HOTPLUG_CPU
1909 config SYS_HAS_CPU_LOONGSON3
1911 select CPU_SUPPORTS_CPUFREQ
1914 config SYS_HAS_CPU_LOONGSON2E
1917 config SYS_HAS_CPU_LOONGSON2F
1919 select CPU_SUPPORTS_CPUFREQ
1920 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1921 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1923 config SYS_HAS_CPU_LOONGSON1B
1926 config SYS_HAS_CPU_LOONGSON1C
1929 config SYS_HAS_CPU_MIPS32_R1
1932 config SYS_HAS_CPU_MIPS32_R2
1935 config SYS_HAS_CPU_MIPS32_R3_5
1938 config SYS_HAS_CPU_MIPS32_R5
1940 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1942 config SYS_HAS_CPU_MIPS32_R6
1944 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1946 config SYS_HAS_CPU_MIPS64_R1
1949 config SYS_HAS_CPU_MIPS64_R2
1952 config SYS_HAS_CPU_MIPS64_R6
1954 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1956 config SYS_HAS_CPU_R3000
1959 config SYS_HAS_CPU_TX39XX
1962 config SYS_HAS_CPU_VR41XX
1965 config SYS_HAS_CPU_R4X00
1968 config SYS_HAS_CPU_TX49XX
1971 config SYS_HAS_CPU_R5000
1974 config SYS_HAS_CPU_R5500
1977 config SYS_HAS_CPU_NEVADA
1980 config SYS_HAS_CPU_R10000
1982 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1984 config SYS_HAS_CPU_RM7000
1987 config SYS_HAS_CPU_SB1
1990 config SYS_HAS_CPU_CAVIUM_OCTEON
1993 config SYS_HAS_CPU_BMIPS
1996 config SYS_HAS_CPU_BMIPS32_3300
1998 select SYS_HAS_CPU_BMIPS
2000 config SYS_HAS_CPU_BMIPS4350
2002 select SYS_HAS_CPU_BMIPS
2004 config SYS_HAS_CPU_BMIPS4380
2006 select SYS_HAS_CPU_BMIPS
2008 config SYS_HAS_CPU_BMIPS5000
2010 select SYS_HAS_CPU_BMIPS
2011 select ARCH_HAS_SYNC_DMA_FOR_CPU
2013 config SYS_HAS_CPU_XLR
2016 config SYS_HAS_CPU_XLP
2020 # CPU may reorder R->R, R->W, W->R, W->W
2021 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2023 config WEAK_ORDERING
2027 # CPU may reorder reads and writes beyond LL/SC
2028 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2030 config WEAK_REORDERING_BEYOND_LLSC
2035 # These two indicate any level of the MIPS32 and MIPS64 architecture
2039 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2043 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2046 # These indicate the revision of the architecture
2050 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2054 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2060 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2062 select HAVE_ARCH_BITREVERSE
2063 select MIPS_ASID_BITS_VARIABLE
2064 select MIPS_CRC_SUPPORT
2067 config TARGET_ISA_REV
2069 default 1 if CPU_MIPSR1
2070 default 2 if CPU_MIPSR2
2071 default 6 if CPU_MIPSR6
2074 Reflects the ISA revision being targeted by the kernel build. This
2075 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2083 config SYS_SUPPORTS_32BIT_KERNEL
2085 config SYS_SUPPORTS_64BIT_KERNEL
2087 config CPU_SUPPORTS_32BIT_KERNEL
2089 config CPU_SUPPORTS_64BIT_KERNEL
2091 config CPU_SUPPORTS_CPUFREQ
2093 config CPU_SUPPORTS_ADDRWINCFG
2095 config CPU_SUPPORTS_HUGEPAGES
2097 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2098 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2100 config MIPS_PGD_C0_CONTEXT
2102 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2105 # Set to y for ptrace access to watch registers.
2107 config HARDWARE_WATCHPOINTS
2109 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2114 prompt "Kernel code model"
2116 You should only select this option if you have a workload that
2117 actually benefits from 64-bit processing or if your machine has
2118 large memory. You will only be presented a single option in this
2119 menu if your system does not support both 32-bit and 64-bit kernels.
2122 bool "32-bit kernel"
2123 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2126 Select this option if you want to build a 32-bit kernel.
2129 bool "64-bit kernel"
2130 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2132 Select this option if you want to build a 64-bit kernel.
2137 bool "KVM Guest Kernel"
2138 depends on BROKEN_ON_SMP
2140 Select this option if building a guest kernel for KVM (Trap & Emulate)
2143 config KVM_GUEST_TIMER_FREQ
2144 int "Count/Compare Timer Frequency (MHz)"
2145 depends on KVM_GUEST
2148 Set this to non-zero if building a guest kernel for KVM to skip RTC
2149 emulation when determining guest CPU Frequency. Instead, the guest's
2150 timer frequency is specified directly.
2152 config MIPS_VA_BITS_48
2153 bool "48 bits virtual memory"
2156 Support a maximum at least 48 bits of application virtual
2157 memory. Default is 40 bits or less, depending on the CPU.
2158 For page sizes 16k and above, this option results in a small
2159 memory overhead for page tables. For 4k page size, a fourth
2160 level of page tables is added which imposes both a memory
2161 overhead as well as slower TLB fault handling.
2166 prompt "Kernel page size"
2167 default PAGE_SIZE_4KB
2169 config PAGE_SIZE_4KB
2171 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2173 This option select the standard 4kB Linux page size. On some
2174 R3000-family processors this is the only available page size. Using
2175 4kB page size will minimize memory consumption and is therefore
2176 recommended for low memory systems.
2178 config PAGE_SIZE_8KB
2180 depends on CPU_CAVIUM_OCTEON
2181 depends on !MIPS_VA_BITS_48
2183 Using 8kB page size will result in higher performance kernel at
2184 the price of higher memory consumption. This option is available
2185 only on cnMIPS processors. Note that you will need a suitable Linux
2186 distribution to support this.
2188 config PAGE_SIZE_16KB
2190 depends on !CPU_R3000 && !CPU_TX39XX
2192 Using 16kB page size will result in higher performance kernel at
2193 the price of higher memory consumption. This option is available on
2194 all non-R3000 family processors. Note that you will need a suitable
2195 Linux distribution to support this.
2197 config PAGE_SIZE_32KB
2199 depends on CPU_CAVIUM_OCTEON
2200 depends on !MIPS_VA_BITS_48
2202 Using 32kB page size will result in higher performance kernel at
2203 the price of higher memory consumption. This option is available
2204 only on cnMIPS cores. Note that you will need a suitable Linux
2205 distribution to support this.
2207 config PAGE_SIZE_64KB
2209 depends on !CPU_R3000 && !CPU_TX39XX
2211 Using 64kB page size will result in higher performance kernel at
2212 the price of higher memory consumption. This option is available on
2213 all non-R3000 family processor. Not that at the time of this
2214 writing this option is still high experimental.
2218 config FORCE_MAX_ZONEORDER
2219 int "Maximum zone order"
2220 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2221 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2222 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2223 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2224 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2225 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2229 The kernel memory allocator divides physically contiguous memory
2230 blocks into "zones", where each zone is a power of two number of
2231 pages. This option selects the largest power of two that the kernel
2232 keeps in the memory allocator. If you need to allocate very large
2233 blocks of physically contiguous memory, then you may need to
2234 increase this value.
2236 This config option is actually maximum order plus one. For example,
2237 a value of 11 means that the largest free memory block is 2^10 pages.
2239 The page size is not necessarily 4KB. Keep this in mind
2240 when choosing a value for this option.
2245 config IP22_CPU_SCACHE
2250 # Support for a MIPS32 / MIPS64 style S-caches
2252 config MIPS_CPU_SCACHE
2256 config R5000_CPU_SCACHE
2260 config RM7000_CPU_SCACHE
2264 config SIBYTE_DMA_PAGEOPS
2265 bool "Use DMA to clear/copy pages"
2268 Instead of using the CPU to zero and copy pages, use a Data Mover
2269 channel. These DMA channels are otherwise unused by the standard
2270 SiByte Linux port. Seems to give a small performance benefit.
2272 config CPU_HAS_PREFETCH
2275 config CPU_GENERIC_DUMP_TLB
2277 default y if !(CPU_R3000 || CPU_TX39XX)
2279 config MIPS_FP_SUPPORT
2280 bool "Floating Point support" if EXPERT
2283 Select y to include support for floating point in the kernel
2284 including initialization of FPU hardware, FP context save & restore
2285 and emulation of an FPU where necessary. Without this support any
2286 userland program attempting to use floating point instructions will
2289 If you know that your userland will not attempt to use floating point
2290 instructions then you can say n here to shrink the kernel a little.
2294 config CPU_R2300_FPU
2296 depends on MIPS_FP_SUPPORT
2297 default y if CPU_R3000 || CPU_TX39XX
2304 depends on MIPS_FP_SUPPORT
2305 default y if !CPU_R2300_FPU
2307 config CPU_R4K_CACHE_TLB
2309 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2312 bool "MIPS MT SMP support (1 TC on each available VPE)"
2314 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2315 select CPU_MIPSR2_IRQ_VI
2316 select CPU_MIPSR2_IRQ_EI
2321 select SYS_SUPPORTS_SMP
2322 select SYS_SUPPORTS_SCHED_SMT
2323 select MIPS_PERF_SHARED_TC_COUNTERS
2325 This is a kernel model which is known as SMVP. This is supported
2326 on cores with the MT ASE and uses the available VPEs to implement
2327 virtual processors which supports SMP. This is equivalent to the
2328 Intel Hyperthreading feature. For further information go to
2329 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2335 bool "SMT (multithreading) scheduler support"
2336 depends on SYS_SUPPORTS_SCHED_SMT
2339 SMT scheduler support improves the CPU scheduler's decision making
2340 when dealing with MIPS MT enabled cores at a cost of slightly
2341 increased overhead in some places. If unsure say N here.
2343 config SYS_SUPPORTS_SCHED_SMT
2346 config SYS_SUPPORTS_MULTITHREADING
2349 config MIPS_MT_FPAFF
2350 bool "Dynamic FPU affinity for FP-intensive threads"
2352 depends on MIPS_MT_SMP
2354 config MIPSR2_TO_R6_EMULATOR
2355 bool "MIPS R2-to-R6 emulator"
2356 depends on CPU_MIPSR6
2357 depends on MIPS_FP_SUPPORT
2360 Choose this option if you want to run non-R6 MIPS userland code.
2361 Even if you say 'Y' here, the emulator will still be disabled by
2362 default. You can enable it using the 'mipsr2emu' kernel option.
2363 The only reason this is a build-time option is to save ~14K from the
2366 config SYS_SUPPORTS_VPE_LOADER
2368 depends on SYS_SUPPORTS_MULTITHREADING
2370 Indicates that the platform supports the VPE loader, and provides
2373 config MIPS_VPE_LOADER
2374 bool "VPE loader support."
2375 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2376 select CPU_MIPSR2_IRQ_VI
2377 select CPU_MIPSR2_IRQ_EI
2380 Includes a loader for loading an elf relocatable object
2381 onto another VPE and running it.
2383 config MIPS_VPE_LOADER_CMP
2386 depends on MIPS_VPE_LOADER && MIPS_CMP
2388 config MIPS_VPE_LOADER_MT
2391 depends on MIPS_VPE_LOADER && !MIPS_CMP
2393 config MIPS_VPE_LOADER_TOM
2394 bool "Load VPE program into memory hidden from linux"
2395 depends on MIPS_VPE_LOADER
2398 The loader can use memory that is present but has been hidden from
2399 Linux using the kernel command line option "mem=xxMB". It's up to
2400 you to ensure the amount you put in the option and the space your
2401 program requires is less or equal to the amount physically present.
2403 config MIPS_VPE_APSP_API
2404 bool "Enable support for AP/SP API (RTLX)"
2405 depends on MIPS_VPE_LOADER
2407 config MIPS_VPE_APSP_API_CMP
2410 depends on MIPS_VPE_APSP_API && MIPS_CMP
2412 config MIPS_VPE_APSP_API_MT
2415 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2418 bool "MIPS CMP framework support (DEPRECATED)"
2419 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2422 select SYS_SUPPORTS_SMP
2423 select WEAK_ORDERING
2426 Select this if you are using a bootloader which implements the "CMP
2427 framework" protocol (ie. YAMON) and want your kernel to make use of
2428 its ability to start secondary CPUs.
2430 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2434 bool "MIPS Coherent Processing System support"
2435 depends on SYS_SUPPORTS_MIPS_CPS
2437 select MIPS_CPS_PM if HOTPLUG_CPU
2439 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2440 select SYS_SUPPORTS_HOTPLUG_CPU
2441 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2442 select SYS_SUPPORTS_SMP
2443 select WEAK_ORDERING
2445 Select this if you wish to run an SMP kernel across multiple cores
2446 within a MIPS Coherent Processing System. When this option is
2447 enabled the kernel will probe for other cores and boot them with
2448 no external assistance. It is safe to enable this when hardware
2449 support is unavailable.
2462 config SB1_PASS_2_WORKAROUNDS
2464 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2467 config SB1_PASS_2_1_WORKAROUNDS
2469 depends on CPU_SB1 && CPU_SB1_PASS_2
2473 prompt "SmartMIPS or microMIPS ASE support"
2475 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2478 Select this if you want neither microMIPS nor SmartMIPS support
2480 config CPU_HAS_SMARTMIPS
2481 depends on SYS_SUPPORTS_SMARTMIPS
2484 SmartMIPS is a extension of the MIPS32 architecture aimed at
2485 increased security at both hardware and software level for
2486 smartcards. Enabling this option will allow proper use of the
2487 SmartMIPS instructions by Linux applications. However a kernel with
2488 this option will not work on a MIPS core without SmartMIPS core. If
2489 you don't know you probably don't have SmartMIPS and should say N
2492 config CPU_MICROMIPS
2493 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2496 When this option is enabled the kernel will be built using the
2502 bool "Support for the MIPS SIMD Architecture"
2503 depends on CPU_SUPPORTS_MSA
2504 depends on MIPS_FP_SUPPORT
2505 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2507 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2508 and a set of SIMD instructions to operate on them. When this option
2509 is enabled the kernel will support allocating & switching MSA
2510 vector register contexts. If you know that your kernel will only be
2511 running on CPUs which do not support MSA or that your userland will
2512 not be making use of it then you may wish to say N here to reduce
2513 the size & complexity of your kernel.
2526 config CPU_HAS_LOAD_STORE_LR
2529 CPU has support for unaligned load and store instructions:
2530 LWL, LWR, SWL, SWR (Load/store word left/right).
2531 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2534 # Vectored interrupt mode is an R2 feature
2536 config CPU_MIPSR2_IRQ_VI
2540 # Extended interrupt mode is an R2 feature
2542 config CPU_MIPSR2_IRQ_EI
2547 depends on !CPU_R3000
2553 config CPU_DADDI_WORKAROUNDS
2556 config CPU_R4000_WORKAROUNDS
2558 select CPU_R4400_WORKAROUNDS
2560 config CPU_R4400_WORKAROUNDS
2563 config MIPS_ASID_SHIFT
2565 default 6 if CPU_R3000 || CPU_TX39XX
2568 config MIPS_ASID_BITS
2570 default 0 if MIPS_ASID_BITS_VARIABLE
2571 default 6 if CPU_R3000 || CPU_TX39XX
2574 config MIPS_ASID_BITS_VARIABLE
2577 config MIPS_CRC_SUPPORT
2581 # - Highmem only makes sense for the 32-bit kernel.
2582 # - The current highmem code will only work properly on physically indexed
2583 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2584 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2585 # moment we protect the user and offer the highmem option only on machines
2586 # where it's known to be safe. This will not offer highmem on a few systems
2587 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2588 # indexed CPUs but we're playing safe.
2589 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2590 # know they might have memory configurations that could make use of highmem
2594 bool "High Memory Support"
2595 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2597 config CPU_SUPPORTS_HIGHMEM
2600 config SYS_SUPPORTS_HIGHMEM
2603 config SYS_SUPPORTS_SMARTMIPS
2606 config SYS_SUPPORTS_MICROMIPS
2609 config SYS_SUPPORTS_MIPS16
2612 This option must be set if a kernel might be executed on a MIPS16-
2613 enabled CPU even if MIPS16 is not actually being used. In other
2614 words, it makes the kernel MIPS16-tolerant.
2616 config CPU_SUPPORTS_MSA
2619 config ARCH_FLATMEM_ENABLE
2621 depends on !NUMA && !CPU_LOONGSON2
2623 config ARCH_DISCONTIGMEM_ENABLE
2625 default y if SGI_IP27
2627 Say Y to support efficient handling of discontiguous physical memory,
2628 for architectures which are either NUMA (Non-Uniform Memory Access)
2629 or have huge holes in the physical address space for other reasons.
2630 See <file:Documentation/vm/numa.rst> for more.
2632 config ARCH_SPARSEMEM_ENABLE
2634 select SPARSEMEM_STATIC
2638 depends on SYS_SUPPORTS_NUMA
2640 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2641 Access). This option improves performance on systems with more
2642 than two nodes; on two node systems it is generally better to
2643 leave it disabled; on single node systems disable this option
2646 config SYS_SUPPORTS_NUMA
2650 bool "Relocatable kernel"
2651 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2653 This builds a kernel image that retains relocation information
2654 so it can be loaded someplace besides the default 1MB.
2655 The relocations make the kernel binary about 15% larger,
2656 but are discarded at runtime
2658 config RELOCATION_TABLE_SIZE
2659 hex "Relocation table size"
2660 depends on RELOCATABLE
2661 range 0x0 0x01000000
2662 default "0x00100000"
2664 A table of relocation data will be appended to the kernel binary
2665 and parsed at boot to fix up the relocated kernel.
2667 This option allows the amount of space reserved for the table to be
2668 adjusted, although the default of 1Mb should be ok in most cases.
2670 The build will fail and a valid size suggested if this is too small.
2672 If unsure, leave at the default value.
2674 config RANDOMIZE_BASE
2675 bool "Randomize the address of the kernel image"
2676 depends on RELOCATABLE
2678 Randomizes the physical and virtual address at which the
2679 kernel image is loaded, as a security feature that
2680 deters exploit attempts relying on knowledge of the location
2681 of kernel internals.
2683 Entropy is generated using any coprocessor 0 registers available.
2685 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2689 config RANDOMIZE_BASE_MAX_OFFSET
2690 hex "Maximum kASLR offset" if EXPERT
2691 depends on RANDOMIZE_BASE
2692 range 0x0 0x40000000 if EVA || 64BIT
2693 range 0x0 0x08000000
2694 default "0x01000000"
2696 When kASLR is active, this provides the maximum offset that will
2697 be applied to the kernel image. It should be set according to the
2698 amount of physical RAM available in the target system minus
2699 PHYSICAL_START and must be a power of 2.
2701 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2702 EVA or 64-bit. The default is 16Mb.
2707 depends on NEED_MULTIPLE_NODES
2709 config HW_PERF_EVENTS
2710 bool "Enable hardware performance counter support for perf events"
2711 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2714 Enable hardware performance counter support for perf events. If
2715 disabled, perf events will use software events only.
2718 bool "Multi-Processing support"
2719 depends on SYS_SUPPORTS_SMP
2721 This enables support for systems with more than one CPU. If you have
2722 a system with only one CPU, say N. If you have a system with more
2723 than one CPU, say Y.
2725 If you say N here, the kernel will run on uni- and multiprocessor
2726 machines, but will use only one CPU of a multiprocessor machine. If
2727 you say Y here, the kernel will run on many, but not all,
2728 uniprocessor machines. On a uniprocessor machine, the kernel
2729 will run faster if you say N here.
2731 People using multiprocessor machines who say Y here should also say
2732 Y to "Enhanced Real Time Clock Support", below.
2734 See also the SMP-HOWTO available at
2735 <http://www.tldp.org/docs.html#howto>.
2737 If you don't know what to do here, say N.
2740 bool "Support for hot-pluggable CPUs"
2741 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2743 Say Y here to allow turning CPUs off and on. CPUs can be
2744 controlled through /sys/devices/system/cpu.
2745 (Note: power management support will enable this option
2746 automatically on SMP systems. )
2747 Say N if you want to disable CPU hotplug.
2752 config SYS_SUPPORTS_MIPS_CMP
2755 config SYS_SUPPORTS_MIPS_CPS
2758 config SYS_SUPPORTS_SMP
2761 config NR_CPUS_DEFAULT_4
2764 config NR_CPUS_DEFAULT_8
2767 config NR_CPUS_DEFAULT_16
2770 config NR_CPUS_DEFAULT_32
2773 config NR_CPUS_DEFAULT_64
2777 int "Maximum number of CPUs (2-256)"
2780 default "4" if NR_CPUS_DEFAULT_4
2781 default "8" if NR_CPUS_DEFAULT_8
2782 default "16" if NR_CPUS_DEFAULT_16
2783 default "32" if NR_CPUS_DEFAULT_32
2784 default "64" if NR_CPUS_DEFAULT_64
2786 This allows you to specify the maximum number of CPUs which this
2787 kernel will support. The maximum supported value is 32 for 32-bit
2788 kernel and 64 for 64-bit kernels; the minimum value which makes
2789 sense is 1 for Qemu (useful only for kernel debugging purposes)
2790 and 2 for all others.
2792 This is purely to save memory - each supported CPU adds
2793 approximately eight kilobytes to the kernel image. For best
2794 performance should round up your number of processors to the next
2797 config MIPS_PERF_SHARED_TC_COUNTERS
2800 config MIPS_NR_CPU_NR_MAP_1024
2803 config MIPS_NR_CPU_NR_MAP
2806 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2807 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2810 # Timer Interrupt Frequency Configuration
2814 prompt "Timer frequency"
2817 Allows the configuration of the timer frequency.
2820 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2823 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2826 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2829 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2832 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2835 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2838 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2841 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2845 config SYS_SUPPORTS_24HZ
2848 config SYS_SUPPORTS_48HZ
2851 config SYS_SUPPORTS_100HZ
2854 config SYS_SUPPORTS_128HZ
2857 config SYS_SUPPORTS_250HZ
2860 config SYS_SUPPORTS_256HZ
2863 config SYS_SUPPORTS_1000HZ
2866 config SYS_SUPPORTS_1024HZ
2869 config SYS_SUPPORTS_ARBIT_HZ
2871 default y if !SYS_SUPPORTS_24HZ && \
2872 !SYS_SUPPORTS_48HZ && \
2873 !SYS_SUPPORTS_100HZ && \
2874 !SYS_SUPPORTS_128HZ && \
2875 !SYS_SUPPORTS_250HZ && \
2876 !SYS_SUPPORTS_256HZ && \
2877 !SYS_SUPPORTS_1000HZ && \
2878 !SYS_SUPPORTS_1024HZ
2884 default 100 if HZ_100
2885 default 128 if HZ_128
2886 default 250 if HZ_250
2887 default 256 if HZ_256
2888 default 1000 if HZ_1000
2889 default 1024 if HZ_1024
2892 def_bool HIGH_RES_TIMERS
2895 bool "Kexec system call"
2898 kexec is a system call that implements the ability to shutdown your
2899 current kernel, and to start another kernel. It is like a reboot
2900 but it is independent of the system firmware. And like a reboot
2901 you can start any kernel with it, not just Linux.
2903 The name comes from the similarity to the exec system call.
2905 It is an ongoing process to be certain the hardware in a machine
2906 is properly shutdown, so do not be surprised if this code does not
2907 initially work for you. As of this writing the exact hardware
2908 interface is strongly in flux, so no good recommendation can be
2912 bool "Kernel crash dumps"
2914 Generate crash dump after being started by kexec.
2915 This should be normally only set in special crash dump kernels
2916 which are loaded in the main kernel with kexec-tools into
2917 a specially reserved region and then later executed after
2918 a crash by kdump/kexec. The crash dump kernel must be compiled
2919 to a memory address not used by the main kernel or firmware using
2922 config PHYSICAL_START
2923 hex "Physical address where the kernel is loaded"
2924 default "0xffffffff84000000"
2925 depends on CRASH_DUMP
2927 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2928 If you plan to use kernel for capturing the crash dump change
2929 this value to start of the reserved region (the "X" value as
2930 specified in the "crashkernel=YM@XM" command line boot parameter
2931 passed to the panic-ed kernel).
2934 bool "Enable seccomp to safely compute untrusted bytecode"
2938 This kernel feature is useful for number crunching applications
2939 that may need to compute untrusted bytecode during their
2940 execution. By using pipes or other transports made available to
2941 the process as file descriptors supporting the read/write
2942 syscalls, it's possible to isolate those applications in
2943 their own address space using seccomp. Once seccomp is
2944 enabled via /proc/<pid>/seccomp, it cannot be disabled
2945 and the task is only allowed to execute a few safe syscalls
2946 defined by each seccomp mode.
2948 If unsure, say Y. Only embedded should say N here.
2950 config MIPS_O32_FP64_SUPPORT
2951 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2952 depends on 32BIT || MIPS32_O32
2954 When this is enabled, the kernel will support use of 64-bit floating
2955 point registers with binaries using the O32 ABI along with the
2956 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2957 32-bit MIPS systems this support is at the cost of increasing the
2958 size and complexity of the compiled FPU emulator. Thus if you are
2959 running a MIPS32 system and know that none of your userland binaries
2960 will require 64-bit floating point, you may wish to reduce the size
2961 of your kernel & potentially improve FP emulation performance by
2964 Although binutils currently supports use of this flag the details
2965 concerning its effect upon the O32 ABI in userland are still being
2966 worked on. In order to avoid userland becoming dependant upon current
2967 behaviour before the details have been finalised, this option should
2968 be considered experimental and only enabled by those working upon
2976 select OF_EARLY_FLATTREE
2986 prompt "Kernel appended dtb support" if USE_OF
2987 default MIPS_NO_APPENDED_DTB
2989 config MIPS_NO_APPENDED_DTB
2992 Do not enable appended dtb support.
2994 config MIPS_ELF_APPENDED_DTB
2997 With this option, the boot code will look for a device tree binary
2998 DTB) included in the vmlinux ELF section .appended_dtb. By default
2999 it is empty and the DTB can be appended using binutils command
3002 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3004 This is meant as a backward compatiblity convenience for those
3005 systems with a bootloader that can't be upgraded to accommodate
3006 the documented boot protocol using a device tree.
3008 config MIPS_RAW_APPENDED_DTB
3009 bool "vmlinux.bin or vmlinuz.bin"
3011 With this option, the boot code will look for a device tree binary
3012 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3013 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3015 This is meant as a backward compatibility convenience for those
3016 systems with a bootloader that can't be upgraded to accommodate
3017 the documented boot protocol using a device tree.
3019 Beware that there is very little in terms of protection against
3020 this option being confused by leftover garbage in memory that might
3021 look like a DTB header after a reboot if no actual DTB is appended
3022 to vmlinux.bin. Do not leave this option active in a production kernel
3023 if you don't intend to always append a DTB.
3027 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3028 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3031 default MIPS_CMDLINE_FROM_BOOTLOADER
3033 config MIPS_CMDLINE_FROM_DTB
3035 bool "Dtb kernel arguments if available"
3037 config MIPS_CMDLINE_DTB_EXTEND
3039 bool "Extend dtb kernel arguments with bootloader arguments"
3041 config MIPS_CMDLINE_FROM_BOOTLOADER
3042 bool "Bootloader kernel arguments if available"
3044 config MIPS_CMDLINE_BUILTIN_EXTEND
3045 depends on CMDLINE_BOOL
3046 bool "Extend builtin kernel arguments with bootloader arguments"
3051 config LOCKDEP_SUPPORT
3055 config STACKTRACE_SUPPORT
3059 config PGTABLE_LEVELS
3061 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3062 default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
3065 config MIPS_AUTO_PFN_OFFSET
3068 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3070 config PCI_DRIVERS_GENERIC
3071 select PCI_DOMAINS_GENERIC if PCI
3074 config PCI_DRIVERS_LEGACY
3075 def_bool !PCI_DRIVERS_GENERIC
3076 select NO_GENERIC_PCI_IOPORT_MAP
3077 select PCI_DOMAINS if PCI
3080 # ISA support is now enabled via select. Too many systems still have the one
3081 # or other ISA chip on the board that users don't know about so don't expect
3082 # users to choose the right thing ...
3088 bool "TURBOchannel support"
3089 depends on MACH_DECSTATION
3091 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3092 processors. TURBOchannel programming specifications are available
3094 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3096 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3097 Linux driver support status is documented at:
3098 <http://www.linux-mips.org/wiki/DECstation>
3104 config ARCH_MMAP_RND_BITS_MIN
3108 config ARCH_MMAP_RND_BITS_MAX
3112 config ARCH_MMAP_RND_COMPAT_BITS_MIN
3115 config ARCH_MMAP_RND_COMPAT_BITS_MAX
3122 select MIPS_EXTERNAL_TIMER
3135 config MIPS32_COMPAT
3141 config SYSVIPC_COMPAT
3145 bool "Kernel support for o32 binaries"
3147 select ARCH_WANT_OLD_COMPAT_IPC
3149 select MIPS32_COMPAT
3150 select SYSVIPC_COMPAT if SYSVIPC
3152 Select this option if you want to run o32 binaries. These are pure
3153 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3154 existing binaries are in this format.
3159 bool "Kernel support for n32 binaries"
3161 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3163 select MIPS32_COMPAT
3164 select SYSVIPC_COMPAT if SYSVIPC
3166 Select this option if you want to run n32 binaries. These are
3167 64-bit binaries using 32-bit quantities for addressing and certain
3168 data that would normally be 64-bit. They are used in special
3175 default y if MIPS32_O32 || MIPS32_N32
3178 menu "Power management options"
3180 config ARCH_HIBERNATION_POSSIBLE
3182 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3184 config ARCH_SUSPEND_POSSIBLE
3186 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3188 source "kernel/power/Kconfig"
3192 config MIPS_EXTERNAL_TIMER
3195 menu "CPU Power Management"
3197 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3198 source "drivers/cpufreq/Kconfig"
3201 source "drivers/cpuidle/Kconfig"
3205 source "drivers/firmware/Kconfig"
3207 source "arch/mips/kvm/Kconfig"