1 # SPDX-License-Identifier: GPL-2.0
5 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
6 select ARCH_CLOCKSOURCE_DATA
7 select ARCH_DISCARD_MEMBLOCK
8 select ARCH_HAS_ELF_RANDOMIZE
9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
10 select ARCH_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_IPC_PARSE_VERSION
16 select BUILDTIME_EXTABLE_SORT
17 select CLONE_BACKWARDS
18 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
19 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_LIB_ASHLDI3
29 select GENERIC_LIB_ASHRDI3
30 select GENERIC_LIB_CMPDI2
31 select GENERIC_LIB_LSHRDI3
32 select GENERIC_LIB_UCMPDI2
33 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
34 select GENERIC_SMP_IDLE_THREAD
35 select GENERIC_TIME_VSYSCALL
36 select HANDLE_DOMAIN_IRQ
37 select HAVE_ARCH_COMPILER_H
38 select HAVE_ARCH_JUMP_LABEL
40 select HAVE_ARCH_MMAP_RND_BITS if MMU
41 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
42 select HAVE_ARCH_SECCOMP_FILTER
43 select HAVE_ARCH_TRACEHOOK
44 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
45 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
46 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
47 select HAVE_CONTEXT_TRACKING
48 select HAVE_COPY_THREAD_TLS
49 select HAVE_C_RECORDMCOUNT
50 select HAVE_DEBUG_KMEMLEAK
51 select HAVE_DEBUG_STACKOVERFLOW
52 select HAVE_DMA_CONTIGUOUS
53 select HAVE_DYNAMIC_FTRACE
54 select HAVE_EXIT_THREAD
55 select HAVE_FTRACE_MCOUNT_RECORD
56 select HAVE_FUNCTION_GRAPH_TRACER
57 select HAVE_FUNCTION_TRACER
58 select HAVE_GENERIC_DMA_COHERENT
60 select HAVE_IOREMAP_PROT
61 select HAVE_IRQ_EXIT_ON_IRQ_STACK
62 select HAVE_IRQ_TIME_ACCOUNTING
64 select HAVE_KRETPROBES
65 select HAVE_MEMBLOCK_NODE_MAP
66 select HAVE_MOD_ARCH_SPECIFIC
69 select HAVE_PERF_EVENTS
70 select HAVE_REGS_AND_STACK_ACCESS_API
72 select HAVE_STACKPROTECTOR
73 select HAVE_SYSCALL_TRACEPOINTS
74 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
75 select IRQ_FORCED_THREADING
76 select MODULES_USE_ELF_RELA if MODULES && 64BIT
77 select MODULES_USE_ELF_REL if MODULES
78 select PERF_USE_VMALLOC
80 select SYSCTL_EXCEPTION_TRACE
83 menu "Machine selection"
90 bool "Generic board-agnostic MIPS kernel"
94 select CLKSRC_MIPS_GIC
96 select CPU_MIPSR2_IRQ_VI
97 select CPU_MIPSR2_IRQ_EI
99 select DMA_PERDEV_COHERENT
103 select MIPS_AUTO_PFN_OFFSET
104 select MIPS_CPU_SCACHE
106 select MIPS_L1_CACHE_SHIFT_7
107 select NO_EXCEPT_FILL
108 select PCI_DRIVERS_GENERIC
112 select SYS_HAS_CPU_MIPS32_R1
113 select SYS_HAS_CPU_MIPS32_R2
114 select SYS_HAS_CPU_MIPS32_R6
115 select SYS_HAS_CPU_MIPS64_R1
116 select SYS_HAS_CPU_MIPS64_R2
117 select SYS_HAS_CPU_MIPS64_R6
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_SUPPORTS_64BIT_KERNEL
120 select SYS_SUPPORTS_BIG_ENDIAN
121 select SYS_SUPPORTS_HIGHMEM
122 select SYS_SUPPORTS_LITTLE_ENDIAN
123 select SYS_SUPPORTS_MICROMIPS
124 select SYS_SUPPORTS_MIPS_CPS
125 select SYS_SUPPORTS_MIPS16
126 select SYS_SUPPORTS_MULTITHREADING
127 select SYS_SUPPORTS_RELOCATABLE
128 select SYS_SUPPORTS_SMARTMIPS
129 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
130 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
131 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
132 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
133 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
134 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
138 Select this to build a kernel which aims to support multiple boards,
139 generally using a flattened device tree passed from the bootloader
140 using the boot protocol defined in the UHI (Unified Hosting
141 Interface) specification.
144 bool "Alchemy processor based machines"
145 select PHYS_ADDR_T_64BIT
149 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
150 select SYS_HAS_CPU_MIPS32_R1
151 select SYS_SUPPORTS_32BIT_KERNEL
152 select SYS_SUPPORTS_APM_EMULATION
154 select SYS_SUPPORTS_ZBOOT
158 bool "Texas Instruments AR7"
160 select DMA_NONCOHERENT
164 select NO_EXCEPT_FILL
166 select SYS_HAS_CPU_MIPS32_R1
167 select SYS_HAS_EARLY_PRINTK
168 select SYS_SUPPORTS_32BIT_KERNEL
169 select SYS_SUPPORTS_LITTLE_ENDIAN
170 select SYS_SUPPORTS_MIPS16
171 select SYS_SUPPORTS_ZBOOT_UART16550
176 Support for the Texas Instruments AR7 System-on-a-Chip
177 family: TNETD7100, 7200 and 7300.
180 bool "Atheros AR231x/AR531x SoC support"
183 select DMA_NONCOHERENT
186 select SYS_HAS_CPU_MIPS32_R1
187 select SYS_SUPPORTS_BIG_ENDIAN
188 select SYS_SUPPORTS_32BIT_KERNEL
189 select SYS_HAS_EARLY_PRINTK
191 Support for Atheros AR231x and Atheros AR531x based boards
194 bool "Atheros AR71XX/AR724X/AR913X based boards"
195 select ARCH_HAS_RESET_CONTROLLER
199 select DMA_NONCOHERENT
207 select SYS_HAS_CPU_MIPS32_R2
208 select SYS_HAS_EARLY_PRINTK
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_BIG_ENDIAN
211 select SYS_SUPPORTS_MIPS16
212 select SYS_SUPPORTS_ZBOOT_UART_PROM
214 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
216 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
219 bool "Broadcom Generic BMIPS kernel"
220 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
221 select ARCH_HAS_PHYS_TO_DMA
223 select NO_EXCEPT_FILL
229 select BCM6345_L1_IRQ
230 select BCM7038_L1_IRQ
231 select BCM7120_L2_IRQ
232 select BRCMSTB_L2_IRQ
234 select DMA_NONCOHERENT
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select SYS_SUPPORTS_BIG_ENDIAN
238 select SYS_SUPPORTS_HIGHMEM
239 select SYS_HAS_CPU_BMIPS32_3300
240 select SYS_HAS_CPU_BMIPS4350
241 select SYS_HAS_CPU_BMIPS4380
242 select SYS_HAS_CPU_BMIPS5000
244 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
245 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
246 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
247 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
248 select HARDIRQS_SW_RESEND
250 Build a generic DT-based kernel image that boots on select
251 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
252 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
253 must be set appropriately for your board.
256 bool "Broadcom BCM47XX based boards"
260 select DMA_NONCOHERENT
263 select SYS_HAS_CPU_MIPS32_R1
264 select NO_EXCEPT_FILL
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_LITTLE_ENDIAN
267 select SYS_SUPPORTS_MIPS16
268 select SYS_SUPPORTS_ZBOOT
269 select SYS_HAS_EARLY_PRINTK
270 select USE_GENERIC_EARLY_PRINTK_8250
272 select LEDS_GPIO_REGISTER
275 select BCM47XX_SSB if !BCM47XX_BCMA
277 Support for BCM47XX based boards
280 bool "Broadcom BCM63XX based boards"
285 select DMA_NONCOHERENT
287 select SYS_SUPPORTS_32BIT_KERNEL
288 select SYS_SUPPORTS_BIG_ENDIAN
289 select SYS_HAS_EARLY_PRINTK
293 select MIPS_L1_CACHE_SHIFT_4
296 Support for BCM63XX based boards
303 select DMA_NONCOHERENT
309 select PCI_GT64XXX_PCI0
311 select SYS_HAS_CPU_NEVADA
312 select SYS_HAS_EARLY_PRINTK
313 select SYS_SUPPORTS_32BIT_KERNEL
314 select SYS_SUPPORTS_64BIT_KERNEL
315 select SYS_SUPPORTS_LITTLE_ENDIAN
316 select USE_GENERIC_EARLY_PRINTK_8250
318 config MACH_DECSTATION
322 select CEVT_R4K if CPU_R4X00
324 select CSRC_R4K if CPU_R4X00
325 select CPU_DADDI_WORKAROUNDS if 64BIT
326 select CPU_R4000_WORKAROUNDS if 64BIT
327 select CPU_R4400_WORKAROUNDS if 64BIT
328 select DMA_NONCOHERENT
331 select SYS_HAS_CPU_R3000
332 select SYS_HAS_CPU_R4X00
333 select SYS_SUPPORTS_32BIT_KERNEL
334 select SYS_SUPPORTS_64BIT_KERNEL
335 select SYS_SUPPORTS_LITTLE_ENDIAN
336 select SYS_SUPPORTS_128HZ
337 select SYS_SUPPORTS_256HZ
338 select SYS_SUPPORTS_1024HZ
339 select MIPS_L1_CACHE_SHIFT_4
341 This enables support for DEC's MIPS based workstations. For details
342 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
343 DECstation porting pages on <http://decstation.unix-ag.org/>.
345 If you have one of the following DECstation Models you definitely
346 want to choose R4xx0 for the CPU Type:
353 otherwise choose R3000.
356 bool "Jazz family of machines"
357 select ARCH_MIGHT_HAVE_PC_PARPORT
358 select ARCH_MIGHT_HAVE_PC_SERIO
361 select ARCH_MAY_HAVE_PC_FDC
364 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
365 select GENERIC_ISA_DMA
366 select HAVE_PCSPKR_PLATFORM
371 select SYS_HAS_CPU_R4X00
372 select SYS_SUPPORTS_32BIT_KERNEL
373 select SYS_SUPPORTS_64BIT_KERNEL
374 select SYS_SUPPORTS_100HZ
376 This a family of machines based on the MIPS R4030 chipset which was
377 used by several vendors to build RISC/os and Windows NT workstations.
378 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
379 Olivetti M700-10 workstations.
382 bool "Ingenic SoC based machines"
383 select SYS_SUPPORTS_32BIT_KERNEL
384 select SYS_SUPPORTS_LITTLE_ENDIAN
385 select SYS_SUPPORTS_ZBOOT_UART16550
386 select DMA_NONCOHERENT
391 select GENERIC_IRQ_CHIP
397 bool "Lantiq based platforms"
398 select DMA_NONCOHERENT
402 select SYS_HAS_CPU_MIPS32_R1
403 select SYS_HAS_CPU_MIPS32_R2
404 select SYS_SUPPORTS_BIG_ENDIAN
405 select SYS_SUPPORTS_32BIT_KERNEL
406 select SYS_SUPPORTS_MIPS16
407 select SYS_SUPPORTS_MULTITHREADING
408 select SYS_SUPPORTS_VPE_LOADER
409 select SYS_HAS_EARLY_PRINTK
416 select PINCTRL_LANTIQ
417 select ARCH_HAS_RESET_CONTROLLER
418 select RESET_CONTROLLER
421 bool "LASAT Networks platforms"
425 select DMA_NONCOHERENT
426 select SYS_HAS_EARLY_PRINTK
429 select PCI_GT64XXX_PCI0
431 select R5000_CPU_SCACHE
432 select SYS_HAS_CPU_R5000
433 select SYS_SUPPORTS_32BIT_KERNEL
434 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
435 select SYS_SUPPORTS_LITTLE_ENDIAN
437 config MACH_LOONGSON32
438 bool "Loongson-1 family of machines"
439 select SYS_SUPPORTS_ZBOOT
441 This enables support for the Loongson-1 family of machines.
443 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
444 the Institute of Computing Technology (ICT), Chinese Academy of
447 config MACH_LOONGSON64
448 bool "Loongson-2/3 family of machines"
449 select SYS_SUPPORTS_ZBOOT
451 This enables the support of Loongson-2/3 family of machines.
453 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
454 family of multi-core CPUs. They are both 64-bit general-purpose
455 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
456 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
457 in the People's Republic of China. The chief architect is Professor
460 config MACH_PISTACHIO
461 bool "IMG Pistachio SoC based boards"
465 select CLKSRC_MIPS_GIC
468 select DMA_NONCOHERENT
473 select MIPS_CPU_SCACHE
477 select SYS_HAS_CPU_MIPS32_R2
478 select SYS_SUPPORTS_32BIT_KERNEL
479 select SYS_SUPPORTS_LITTLE_ENDIAN
480 select SYS_SUPPORTS_MIPS_CPS
481 select SYS_SUPPORTS_MULTITHREADING
482 select SYS_SUPPORTS_RELOCATABLE
483 select SYS_SUPPORTS_ZBOOT
484 select SYS_HAS_EARLY_PRINTK
485 select USE_GENERIC_EARLY_PRINTK_8250
488 This enables support for the IMG Pistachio SoC platform.
491 bool "MIPS Malta board"
492 select ARCH_MAY_HAVE_PC_FDC
493 select ARCH_MIGHT_HAVE_PC_PARPORT
494 select ARCH_MIGHT_HAVE_PC_SERIO
499 select CLKSRC_MIPS_GIC
502 select DMA_MAYBE_COHERENT
503 select GENERIC_ISA_DMA
504 select HAVE_PCSPKR_PLATFORM
511 select MIPS_CPU_SCACHE
513 select MIPS_L1_CACHE_SHIFT_6
515 select PCI_GT64XXX_PCI0
518 select SYS_HAS_CPU_MIPS32_R1
519 select SYS_HAS_CPU_MIPS32_R2
520 select SYS_HAS_CPU_MIPS32_R3_5
521 select SYS_HAS_CPU_MIPS32_R5
522 select SYS_HAS_CPU_MIPS32_R6
523 select SYS_HAS_CPU_MIPS64_R1
524 select SYS_HAS_CPU_MIPS64_R2
525 select SYS_HAS_CPU_MIPS64_R6
526 select SYS_HAS_CPU_NEVADA
527 select SYS_HAS_CPU_RM7000
528 select SYS_SUPPORTS_32BIT_KERNEL
529 select SYS_SUPPORTS_64BIT_KERNEL
530 select SYS_SUPPORTS_BIG_ENDIAN
531 select SYS_SUPPORTS_HIGHMEM
532 select SYS_SUPPORTS_LITTLE_ENDIAN
533 select SYS_SUPPORTS_MICROMIPS
534 select SYS_SUPPORTS_MIPS16
535 select SYS_SUPPORTS_MIPS_CMP
536 select SYS_SUPPORTS_MIPS_CPS
537 select SYS_SUPPORTS_MULTITHREADING
538 select SYS_SUPPORTS_RELOCATABLE
539 select SYS_SUPPORTS_SMARTMIPS
540 select SYS_SUPPORTS_VPE_LOADER
541 select SYS_SUPPORTS_ZBOOT
543 select ZONE_DMA32 if 64BIT
545 This enables support for the MIPS Technologies Malta evaluation
549 bool "Microchip PIC32 Family"
551 This enables support for the Microchip PIC32 family of platforms.
553 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
557 bool "NEC EMMA2RH Mark-eins board"
561 This enables support for the NEC Electronics Mark-eins boards.
564 bool "NEC VR4100 series based machines"
567 select SYS_HAS_CPU_VR41XX
568 select SYS_SUPPORTS_MIPS16
572 bool "NXP STB220 board"
575 Support for NXP Semiconductors STB220 Development Board.
582 Support for NXP Semiconductors STB225 Development Board.
585 bool "PMC-Sierra MSP chipsets"
588 select DMA_NONCOHERENT
590 select NO_EXCEPT_FILL
592 select SYS_HAS_CPU_MIPS32_R1
593 select SYS_HAS_CPU_MIPS32_R2
594 select SYS_SUPPORTS_32BIT_KERNEL
595 select SYS_SUPPORTS_BIG_ENDIAN
596 select SYS_SUPPORTS_MIPS16
599 select SERIAL_8250_CONSOLE
600 select USB_EHCI_BIG_ENDIAN_MMIO
601 select USB_EHCI_BIG_ENDIAN_DESC
603 This adds support for the PMC-Sierra family of Multi-Service
604 Processor System-On-A-Chips. These parts include a number
605 of integrated peripherals, interfaces and DSPs in addition to
606 a variety of MIPS cores.
609 bool "Ralink based machines"
613 select DMA_NONCOHERENT
616 select SYS_HAS_CPU_MIPS32_R1
617 select SYS_HAS_CPU_MIPS32_R2
618 select SYS_SUPPORTS_32BIT_KERNEL
619 select SYS_SUPPORTS_LITTLE_ENDIAN
620 select SYS_SUPPORTS_MIPS16
621 select SYS_HAS_EARLY_PRINTK
623 select ARCH_HAS_RESET_CONTROLLER
624 select RESET_CONTROLLER
627 bool "SGI IP22 (Indy/Indigo2)"
630 select ARCH_MIGHT_HAVE_PC_SERIO
634 select DEFAULT_SGI_PARTITION
635 select DMA_NONCOHERENT
639 select IP22_CPU_SCACHE
641 select GENERIC_ISA_DMA_SUPPORT_BROKEN
643 select SGI_HAS_INDYDOG
649 select SYS_HAS_CPU_R4X00
650 select SYS_HAS_CPU_R5000
652 # Disable EARLY_PRINTK for now since it leads to overwritten prom
653 # memory during early boot on some machines.
655 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
656 # for a more details discussion
658 # select SYS_HAS_EARLY_PRINTK
659 select SYS_SUPPORTS_32BIT_KERNEL
660 select SYS_SUPPORTS_64BIT_KERNEL
661 select SYS_SUPPORTS_BIG_ENDIAN
662 select MIPS_L1_CACHE_SHIFT_7
664 This are the SGI Indy, Challenge S and Indigo2, as well as certain
665 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
666 that runs on these, say Y here.
669 bool "SGI IP27 (Origin200/2000)"
670 select ARCH_HAS_PHYS_TO_DMA
674 select DEFAULT_SGI_PARTITION
675 select SYS_HAS_EARLY_PRINTK
677 select NR_CPUS_DEFAULT_64
678 select SYS_HAS_CPU_R10000
679 select SYS_SUPPORTS_64BIT_KERNEL
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_NUMA
682 select SYS_SUPPORTS_SMP
683 select MIPS_L1_CACHE_SHIFT_7
685 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
686 workstations. To compile a Linux kernel that runs on these, say Y
690 bool "SGI IP28 (Indigo2 R10k)"
693 select ARCH_MIGHT_HAVE_PC_SERIO
697 select DEFAULT_SGI_PARTITION
698 select DMA_NONCOHERENT
699 select GENERIC_ISA_DMA_SUPPORT_BROKEN
705 select SGI_HAS_INDYDOG
711 select SYS_HAS_CPU_R10000
713 # Disable EARLY_PRINTK for now since it leads to overwritten prom
714 # memory during early boot on some machines.
716 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
717 # for a more details discussion
719 # select SYS_HAS_EARLY_PRINTK
720 select SYS_SUPPORTS_64BIT_KERNEL
721 select SYS_SUPPORTS_BIG_ENDIAN
722 select MIPS_L1_CACHE_SHIFT_7
724 This is the SGI Indigo2 with R10000 processor. To compile a Linux
725 kernel that runs on these, say Y here.
729 select ARCH_HAS_PHYS_TO_DMA
735 select DMA_NONCOHERENT
738 select R5000_CPU_SCACHE
739 select RM7000_CPU_SCACHE
740 select SYS_HAS_CPU_R5000
741 select SYS_HAS_CPU_R10000 if BROKEN
742 select SYS_HAS_CPU_RM7000
743 select SYS_HAS_CPU_NEVADA
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select SYS_SUPPORTS_BIG_ENDIAN
747 If you want this kernel to run on SGI O2 workstation, say Y here.
750 bool "Sibyte BCM91120C-CRhine"
752 select SIBYTE_BCM1120
754 select SYS_HAS_CPU_SB1
755 select SYS_SUPPORTS_BIG_ENDIAN
756 select SYS_SUPPORTS_LITTLE_ENDIAN
759 bool "Sibyte BCM91120x-Carmel"
761 select SIBYTE_BCM1120
763 select SYS_HAS_CPU_SB1
764 select SYS_SUPPORTS_BIG_ENDIAN
765 select SYS_SUPPORTS_LITTLE_ENDIAN
768 bool "Sibyte BCM91125C-CRhone"
770 select SIBYTE_BCM1125
772 select SYS_HAS_CPU_SB1
773 select SYS_SUPPORTS_BIG_ENDIAN
774 select SYS_SUPPORTS_HIGHMEM
775 select SYS_SUPPORTS_LITTLE_ENDIAN
778 bool "Sibyte BCM91125E-Rhone"
780 select SIBYTE_BCM1125H
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_LITTLE_ENDIAN
787 bool "Sibyte BCM91250A-SWARM"
789 select HAVE_PATA_PLATFORM
792 select SYS_HAS_CPU_SB1
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_HIGHMEM
795 select SYS_SUPPORTS_LITTLE_ENDIAN
796 select ZONE_DMA32 if 64BIT
797 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
799 config SIBYTE_LITTLESUR
800 bool "Sibyte BCM91250C2-LittleSur"
802 select HAVE_PATA_PLATFORM
805 select SYS_HAS_CPU_SB1
806 select SYS_SUPPORTS_BIG_ENDIAN
807 select SYS_SUPPORTS_HIGHMEM
808 select SYS_SUPPORTS_LITTLE_ENDIAN
809 select ZONE_DMA32 if 64BIT
811 config SIBYTE_SENTOSA
812 bool "Sibyte BCM91250E-Sentosa"
816 select SYS_HAS_CPU_SB1
817 select SYS_SUPPORTS_BIG_ENDIAN
818 select SYS_SUPPORTS_LITTLE_ENDIAN
819 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
822 bool "Sibyte BCM91480B-BigSur"
824 select NR_CPUS_DEFAULT_4
825 select SIBYTE_BCM1x80
827 select SYS_HAS_CPU_SB1
828 select SYS_SUPPORTS_BIG_ENDIAN
829 select SYS_SUPPORTS_HIGHMEM
830 select SYS_SUPPORTS_LITTLE_ENDIAN
831 select ZONE_DMA32 if 64BIT
832 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
835 bool "SNI RM200/300/400"
836 select FW_ARC if CPU_LITTLE_ENDIAN
837 select FW_ARC32 if CPU_LITTLE_ENDIAN
838 select FW_SNIPROM if CPU_BIG_ENDIAN
839 select ARCH_MAY_HAVE_PC_FDC
840 select ARCH_MIGHT_HAVE_PC_PARPORT
841 select ARCH_MIGHT_HAVE_PC_SERIO
845 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
846 select DMA_NONCOHERENT
847 select GENERIC_ISA_DMA
848 select HAVE_PCSPKR_PLATFORM
855 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
856 select SYS_HAS_CPU_R4X00
857 select SYS_HAS_CPU_R5000
858 select SYS_HAS_CPU_R10000
859 select R5000_CPU_SCACHE
860 select SYS_HAS_EARLY_PRINTK
861 select SYS_SUPPORTS_32BIT_KERNEL
862 select SYS_SUPPORTS_64BIT_KERNEL
863 select SYS_SUPPORTS_BIG_ENDIAN
864 select SYS_SUPPORTS_HIGHMEM
865 select SYS_SUPPORTS_LITTLE_ENDIAN
867 The SNI RM200/300/400 are MIPS-based machines manufactured by
868 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
869 Technology and now in turn merged with Fujitsu. Say Y here to
870 support this machine type.
873 bool "Toshiba TX39 series based machines"
876 bool "Toshiba TX49 series based machines"
878 config MIKROTIK_RB532
879 bool "Mikrotik RB532 boards"
882 select DMA_NONCOHERENT
885 select SYS_HAS_CPU_MIPS32_R1
886 select SYS_SUPPORTS_32BIT_KERNEL
887 select SYS_SUPPORTS_LITTLE_ENDIAN
891 select MIPS_L1_CACHE_SHIFT_4
893 Support the Mikrotik(tm) RouterBoard 532 series,
894 based on the IDT RC32434 SoC.
896 config CAVIUM_OCTEON_SOC
897 bool "Cavium Networks Octeon SoC based boards"
899 select ARCH_HAS_PHYS_TO_DMA
901 select PHYS_ADDR_T_64BIT
902 select SYS_SUPPORTS_64BIT_KERNEL
903 select SYS_SUPPORTS_BIG_ENDIAN
905 select EDAC_ATOMIC_SCRUB
906 select SYS_SUPPORTS_LITTLE_ENDIAN
907 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
908 select SYS_HAS_EARLY_PRINTK
909 select SYS_HAS_CPU_CAVIUM_OCTEON
916 select ARCH_SPARSEMEM_ENABLE
917 select SYS_SUPPORTS_SMP
918 select NR_CPUS_DEFAULT_64
919 select MIPS_NR_CPU_NR_MAP_1024
921 select MTD_COMPLEX_MAPPINGS
923 select SYS_SUPPORTS_RELOCATABLE
925 This option supports all of the Octeon reference boards from Cavium
926 Networks. It builds a kernel that dynamically determines the Octeon
927 CPU type and supports all known board reference implementations.
928 Some of the supported boards are:
935 Say Y here for most Octeon reference boards.
938 bool "Netlogic XLR/XLS based systems"
941 select SYS_HAS_CPU_XLR
942 select SYS_SUPPORTS_SMP
945 select SYS_SUPPORTS_32BIT_KERNEL
946 select SYS_SUPPORTS_64BIT_KERNEL
947 select PHYS_ADDR_T_64BIT
948 select SYS_SUPPORTS_BIG_ENDIAN
949 select SYS_SUPPORTS_HIGHMEM
950 select NR_CPUS_DEFAULT_32
954 select ZONE_DMA32 if 64BIT
956 select SYS_HAS_EARLY_PRINTK
957 select SYS_SUPPORTS_ZBOOT
958 select SYS_SUPPORTS_ZBOOT_UART16550
960 Support for systems based on Netlogic XLR and XLS processors.
961 Say Y here if you have a XLR or XLS based board.
964 bool "Netlogic XLP based systems"
967 select SYS_HAS_CPU_XLP
968 select SYS_SUPPORTS_SMP
970 select SYS_SUPPORTS_32BIT_KERNEL
971 select SYS_SUPPORTS_64BIT_KERNEL
972 select PHYS_ADDR_T_64BIT
974 select SYS_SUPPORTS_BIG_ENDIAN
975 select SYS_SUPPORTS_LITTLE_ENDIAN
976 select SYS_SUPPORTS_HIGHMEM
977 select NR_CPUS_DEFAULT_32
981 select ZONE_DMA32 if 64BIT
983 select SYS_HAS_EARLY_PRINTK
985 select SYS_SUPPORTS_ZBOOT
986 select SYS_SUPPORTS_ZBOOT_UART16550
988 This board is based on Netlogic XLP Processor.
989 Say Y here if you have a XLP based board.
992 bool "Para-Virtualized guest system"
995 select SYS_SUPPORTS_64BIT_KERNEL
996 select SYS_SUPPORTS_32BIT_KERNEL
997 select SYS_SUPPORTS_BIG_ENDIAN
998 select SYS_SUPPORTS_SMP
999 select NR_CPUS_DEFAULT_4
1000 select SYS_HAS_EARLY_PRINTK
1001 select SYS_HAS_CPU_MIPS32_R2
1002 select SYS_HAS_CPU_MIPS64_R2
1003 select SYS_HAS_CPU_CAVIUM_OCTEON
1005 select SWAP_IO_SPACE
1007 This option supports guest running under ????
1011 source "arch/mips/alchemy/Kconfig"
1012 source "arch/mips/ath25/Kconfig"
1013 source "arch/mips/ath79/Kconfig"
1014 source "arch/mips/bcm47xx/Kconfig"
1015 source "arch/mips/bcm63xx/Kconfig"
1016 source "arch/mips/bmips/Kconfig"
1017 source "arch/mips/generic/Kconfig"
1018 source "arch/mips/jazz/Kconfig"
1019 source "arch/mips/jz4740/Kconfig"
1020 source "arch/mips/lantiq/Kconfig"
1021 source "arch/mips/lasat/Kconfig"
1022 source "arch/mips/pic32/Kconfig"
1023 source "arch/mips/pistachio/Kconfig"
1024 source "arch/mips/pmcs-msp71xx/Kconfig"
1025 source "arch/mips/ralink/Kconfig"
1026 source "arch/mips/sgi-ip27/Kconfig"
1027 source "arch/mips/sibyte/Kconfig"
1028 source "arch/mips/txx9/Kconfig"
1029 source "arch/mips/vr41xx/Kconfig"
1030 source "arch/mips/cavium-octeon/Kconfig"
1031 source "arch/mips/loongson32/Kconfig"
1032 source "arch/mips/loongson64/Kconfig"
1033 source "arch/mips/netlogic/Kconfig"
1034 source "arch/mips/paravirt/Kconfig"
1038 config RWSEM_GENERIC_SPINLOCK
1042 config RWSEM_XCHGADD_ALGORITHM
1045 config GENERIC_HWEIGHT
1049 config GENERIC_CALIBRATE_DELAY
1053 config SCHED_OMIT_FRAME_POINTER
1058 # Select some configuration options automatically based on user selections.
1063 config ARCH_MAY_HAVE_PC_FDC
1099 config MIPS_CLOCK_VSYSCALL
1100 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1109 config ARCH_SUPPORTS_UPROBES
1112 config DMA_MAYBE_COHERENT
1113 select ARCH_HAS_DMA_COHERENCE_H
1114 select DMA_NONCOHERENT
1117 config DMA_PERDEV_COHERENT
1119 select DMA_NONCOHERENT
1121 config DMA_NONCOHERENT
1123 select ARCH_HAS_DMA_MMAP_PGPROT
1124 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1125 select ARCH_HAS_SYNC_DMA_FOR_CPU
1126 select NEED_DMA_MAP_STATE
1127 select ARCH_HAS_DMA_COHERENT_TO_PFN
1128 select DMA_NONCOHERENT_CACHE_SYNC
1130 config SYS_HAS_EARLY_PRINTK
1133 config SYS_SUPPORTS_HOTPLUG_CPU
1136 config MIPS_BONITO64
1151 config NO_IOPORT_MAP
1156 default y if !CPU_HAS_LOAD_STORE_LR
1158 config GENERIC_ISA_DMA
1160 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1163 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1165 select GENERIC_ISA_DMA
1170 config HOLES_IN_ZONE
1173 config SYS_SUPPORTS_RELOCATABLE
1176 Selected if the platform supports relocating the kernel.
1177 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1178 to allow access to command line and entropy sources.
1180 config MIPS_CBPF_JIT
1182 depends on BPF_JIT && HAVE_CBPF_JIT
1184 config MIPS_EBPF_JIT
1186 depends on BPF_JIT && HAVE_EBPF_JIT
1190 # Endianness selection. Sufficiently obscure so many users don't know what to
1191 # answer,so we try hard to limit the available choices. Also the use of a
1192 # choice statement should be more obvious to the user.
1195 prompt "Endianness selection"
1197 Some MIPS machines can be configured for either little or big endian
1198 byte order. These modes require different kernels and a different
1199 Linux distribution. In general there is one preferred byteorder for a
1200 particular system but some systems are just as commonly used in the
1201 one or the other endianness.
1203 config CPU_BIG_ENDIAN
1205 depends on SYS_SUPPORTS_BIG_ENDIAN
1207 config CPU_LITTLE_ENDIAN
1208 bool "Little endian"
1209 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1216 config SYS_SUPPORTS_APM_EMULATION
1219 config SYS_SUPPORTS_BIG_ENDIAN
1222 config SYS_SUPPORTS_LITTLE_ENDIAN
1225 config SYS_SUPPORTS_HUGETLBFS
1227 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1230 config MIPS_HUGE_TLB_SUPPORT
1231 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1248 config PCI_GT64XXX_PCI0
1251 config NO_EXCEPT_FILL
1258 select DMA_NONCOHERENT
1260 select SWAP_IO_SPACE
1261 select SYS_HAS_CPU_R5500
1262 select SYS_SUPPORTS_32BIT_KERNEL
1263 select SYS_SUPPORTS_64BIT_KERNEL
1264 select SYS_SUPPORTS_BIG_ENDIAN
1271 select DMA_NONCOHERENT
1272 select SYS_HAS_CPU_MIPS32_R2
1273 select SYS_SUPPORTS_32BIT_KERNEL
1274 select SYS_SUPPORTS_LITTLE_ENDIAN
1275 select SYS_SUPPORTS_BIG_ENDIAN
1276 select SYS_SUPPORTS_MIPS16
1277 select CPU_MIPSR2_IRQ_VI
1286 config SWAP_IO_SPACE
1289 config SGI_HAS_INDYDOG
1301 config SGI_HAS_ZILOG
1304 config SGI_HAS_I8042
1307 config DEFAULT_SGI_PARTITION
1319 config MIPS_L1_CACHE_SHIFT_4
1322 config MIPS_L1_CACHE_SHIFT_5
1325 config MIPS_L1_CACHE_SHIFT_6
1328 config MIPS_L1_CACHE_SHIFT_7
1331 config MIPS_L1_CACHE_SHIFT
1333 default "7" if MIPS_L1_CACHE_SHIFT_7
1334 default "6" if MIPS_L1_CACHE_SHIFT_6
1335 default "5" if MIPS_L1_CACHE_SHIFT_5
1336 default "4" if MIPS_L1_CACHE_SHIFT_4
1339 config HAVE_STD_PC_SERIAL_PORT
1343 bool "ARC console support"
1344 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1348 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1353 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1362 menu "CPU selection"
1368 config CPU_LOONGSON3
1369 bool "Loongson 3 CPU"
1370 depends on SYS_HAS_CPU_LOONGSON3
1371 select ARCH_HAS_PHYS_TO_DMA
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HIGHMEM
1374 select CPU_SUPPORTS_HUGEPAGES
1375 select CPU_HAS_LOAD_STORE_LR
1376 select WEAK_ORDERING
1377 select WEAK_REORDERING_BEYOND_LLSC
1378 select MIPS_PGD_C0_CONTEXT
1379 select MIPS_L1_CACHE_SHIFT_6
1383 The Loongson 3 processor implements the MIPS64R2 instruction
1384 set with many extensions.
1386 config LOONGSON3_ENHANCEMENT
1387 bool "New Loongson 3 CPU Enhancements"
1390 select CPU_HAS_PREFETCH
1391 depends on CPU_LOONGSON3
1393 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1394 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1395 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1396 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1397 Fast TLB refill support, etc.
1399 This option enable those enhancements which are not probed at run
1400 time. If you want a generic kernel to run on all Loongson 3 machines,
1401 please say 'N' here. If you want a high-performance kernel to run on
1402 new Loongson 3 machines only, please say 'Y' here.
1404 config CPU_LOONGSON2E
1406 depends on SYS_HAS_CPU_LOONGSON2E
1407 select CPU_LOONGSON2
1409 The Loongson 2E processor implements the MIPS III instruction set
1410 with many extensions.
1412 It has an internal FPGA northbridge, which is compatible to
1415 config CPU_LOONGSON2F
1417 depends on SYS_HAS_CPU_LOONGSON2F
1418 select CPU_LOONGSON2
1421 The Loongson 2F processor implements the MIPS III instruction set
1422 with many extensions.
1424 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1425 have a similar programming interface with FPGA northbridge used in
1428 config CPU_LOONGSON1B
1430 depends on SYS_HAS_CPU_LOONGSON1B
1431 select CPU_LOONGSON1
1432 select LEDS_GPIO_REGISTER
1434 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1435 Release 1 instruction set and part of the MIPS32 Release 2
1438 config CPU_LOONGSON1C
1440 depends on SYS_HAS_CPU_LOONGSON1C
1441 select CPU_LOONGSON1
1442 select LEDS_GPIO_REGISTER
1444 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1445 Release 1 instruction set and part of the MIPS32 Release 2
1448 config CPU_MIPS32_R1
1449 bool "MIPS32 Release 1"
1450 depends on SYS_HAS_CPU_MIPS32_R1
1451 select CPU_HAS_PREFETCH
1452 select CPU_HAS_LOAD_STORE_LR
1453 select CPU_SUPPORTS_32BIT_KERNEL
1454 select CPU_SUPPORTS_HIGHMEM
1456 Choose this option to build a kernel for release 1 or later of the
1457 MIPS32 architecture. Most modern embedded systems with a 32-bit
1458 MIPS processor are based on a MIPS32 processor. If you know the
1459 specific type of processor in your system, choose those that one
1460 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1461 Release 2 of the MIPS32 architecture is available since several
1462 years so chances are you even have a MIPS32 Release 2 processor
1463 in which case you should choose CPU_MIPS32_R2 instead for better
1466 config CPU_MIPS32_R2
1467 bool "MIPS32 Release 2"
1468 depends on SYS_HAS_CPU_MIPS32_R2
1469 select CPU_HAS_PREFETCH
1470 select CPU_HAS_LOAD_STORE_LR
1471 select CPU_SUPPORTS_32BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_SUPPORTS_MSA
1476 Choose this option to build a kernel for release 2 or later of the
1477 MIPS32 architecture. Most modern embedded systems with a 32-bit
1478 MIPS processor are based on a MIPS32 processor. If you know the
1479 specific type of processor in your system, choose those that one
1480 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1482 config CPU_MIPS32_R6
1483 bool "MIPS32 Release 6"
1484 depends on SYS_HAS_CPU_MIPS32_R6
1485 select CPU_HAS_PREFETCH
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
1488 select CPU_SUPPORTS_MSA
1490 select MIPS_O32_FP64_SUPPORT
1492 Choose this option to build a kernel for release 6 or later of the
1493 MIPS32 architecture. New MIPS processors, starting with the Warrior
1494 family, are based on a MIPS32r6 processor. If you own an older
1495 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1497 config CPU_MIPS64_R1
1498 bool "MIPS64 Release 1"
1499 depends on SYS_HAS_CPU_MIPS64_R1
1500 select CPU_HAS_PREFETCH
1501 select CPU_HAS_LOAD_STORE_LR
1502 select CPU_SUPPORTS_32BIT_KERNEL
1503 select CPU_SUPPORTS_64BIT_KERNEL
1504 select CPU_SUPPORTS_HIGHMEM
1505 select CPU_SUPPORTS_HUGEPAGES
1507 Choose this option to build a kernel for release 1 or later of the
1508 MIPS64 architecture. Many modern embedded systems with a 64-bit
1509 MIPS processor are based on a MIPS64 processor. If you know the
1510 specific type of processor in your system, choose those that one
1511 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1512 Release 2 of the MIPS64 architecture is available since several
1513 years so chances are you even have a MIPS64 Release 2 processor
1514 in which case you should choose CPU_MIPS64_R2 instead for better
1517 config CPU_MIPS64_R2
1518 bool "MIPS64 Release 2"
1519 depends on SYS_HAS_CPU_MIPS64_R2
1520 select CPU_HAS_PREFETCH
1521 select CPU_HAS_LOAD_STORE_LR
1522 select CPU_SUPPORTS_32BIT_KERNEL
1523 select CPU_SUPPORTS_64BIT_KERNEL
1524 select CPU_SUPPORTS_HIGHMEM
1525 select CPU_SUPPORTS_HUGEPAGES
1526 select CPU_SUPPORTS_MSA
1529 Choose this option to build a kernel for release 2 or later of the
1530 MIPS64 architecture. Many modern embedded systems with a 64-bit
1531 MIPS processor are based on a MIPS64 processor. If you know the
1532 specific type of processor in your system, choose those that one
1533 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1535 config CPU_MIPS64_R6
1536 bool "MIPS64 Release 6"
1537 depends on SYS_HAS_CPU_MIPS64_R6
1538 select CPU_HAS_PREFETCH
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_MSA
1543 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1546 Choose this option to build a kernel for release 6 or later of the
1547 MIPS64 architecture. New MIPS processors, starting with the Warrior
1548 family, are based on a MIPS64r6 processor. If you own an older
1549 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1553 depends on SYS_HAS_CPU_R3000
1555 select CPU_HAS_LOAD_STORE_LR
1556 select CPU_SUPPORTS_32BIT_KERNEL
1557 select CPU_SUPPORTS_HIGHMEM
1559 Please make sure to pick the right CPU type. Linux/MIPS is not
1560 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1561 *not* work on R4000 machines and vice versa. However, since most
1562 of the supported machines have an R4000 (or similar) CPU, R4x00
1563 might be a safe bet. If the resulting kernel does not work,
1564 try to recompile with R3000.
1568 depends on SYS_HAS_CPU_TX39XX
1569 select CPU_SUPPORTS_32BIT_KERNEL
1570 select CPU_HAS_LOAD_STORE_LR
1574 depends on SYS_HAS_CPU_VR41XX
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select CPU_SUPPORTS_64BIT_KERNEL
1577 select CPU_HAS_LOAD_STORE_LR
1579 The options selects support for the NEC VR4100 series of processors.
1580 Only choose this option if you have one of these processors as a
1581 kernel built with this option will not run on any other type of
1582 processor or vice versa.
1586 depends on SYS_HAS_CPU_R4300
1587 select CPU_SUPPORTS_32BIT_KERNEL
1588 select CPU_SUPPORTS_64BIT_KERNEL
1589 select CPU_HAS_LOAD_STORE_LR
1591 MIPS Technologies R4300-series processors.
1595 depends on SYS_HAS_CPU_R4X00
1596 select CPU_SUPPORTS_32BIT_KERNEL
1597 select CPU_SUPPORTS_64BIT_KERNEL
1598 select CPU_SUPPORTS_HUGEPAGES
1599 select CPU_HAS_LOAD_STORE_LR
1601 MIPS Technologies R4000-series processors other than 4300, including
1602 the R4000, R4400, R4600, and 4700.
1606 depends on SYS_HAS_CPU_TX49XX
1607 select CPU_HAS_PREFETCH
1608 select CPU_HAS_LOAD_STORE_LR
1609 select CPU_SUPPORTS_32BIT_KERNEL
1610 select CPU_SUPPORTS_64BIT_KERNEL
1611 select CPU_SUPPORTS_HUGEPAGES
1615 depends on SYS_HAS_CPU_R5000
1616 select CPU_SUPPORTS_32BIT_KERNEL
1617 select CPU_SUPPORTS_64BIT_KERNEL
1618 select CPU_SUPPORTS_HUGEPAGES
1619 select CPU_HAS_LOAD_STORE_LR
1621 MIPS Technologies R5000-series processors other than the Nevada.
1625 depends on SYS_HAS_CPU_R5432
1626 select CPU_SUPPORTS_32BIT_KERNEL
1627 select CPU_SUPPORTS_64BIT_KERNEL
1628 select CPU_SUPPORTS_HUGEPAGES
1629 select CPU_HAS_LOAD_STORE_LR
1633 depends on SYS_HAS_CPU_R5500
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 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1644 depends on SYS_HAS_CPU_NEVADA
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 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1654 depends on SYS_HAS_CPU_R8000
1655 select CPU_HAS_PREFETCH
1656 select CPU_HAS_LOAD_STORE_LR
1657 select CPU_SUPPORTS_64BIT_KERNEL
1659 MIPS Technologies R8000 processors. Note these processors are
1660 uncommon and the support for them is incomplete.
1664 depends on SYS_HAS_CPU_R10000
1665 select CPU_HAS_PREFETCH
1666 select CPU_HAS_LOAD_STORE_LR
1667 select CPU_SUPPORTS_32BIT_KERNEL
1668 select CPU_SUPPORTS_64BIT_KERNEL
1669 select CPU_SUPPORTS_HIGHMEM
1670 select CPU_SUPPORTS_HUGEPAGES
1672 MIPS Technologies R10000-series processors.
1676 depends on SYS_HAS_CPU_RM7000
1677 select CPU_HAS_PREFETCH
1678 select CPU_HAS_LOAD_STORE_LR
1679 select CPU_SUPPORTS_32BIT_KERNEL
1680 select CPU_SUPPORTS_64BIT_KERNEL
1681 select CPU_SUPPORTS_HIGHMEM
1682 select CPU_SUPPORTS_HUGEPAGES
1686 depends on SYS_HAS_CPU_SB1
1687 select CPU_HAS_LOAD_STORE_LR
1688 select CPU_SUPPORTS_32BIT_KERNEL
1689 select CPU_SUPPORTS_64BIT_KERNEL
1690 select CPU_SUPPORTS_HIGHMEM
1691 select CPU_SUPPORTS_HUGEPAGES
1692 select WEAK_ORDERING
1694 config CPU_CAVIUM_OCTEON
1695 bool "Cavium Octeon processor"
1696 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1697 select CPU_HAS_PREFETCH
1698 select CPU_HAS_LOAD_STORE_LR
1699 select CPU_SUPPORTS_64BIT_KERNEL
1700 select WEAK_ORDERING
1701 select CPU_SUPPORTS_HIGHMEM
1702 select CPU_SUPPORTS_HUGEPAGES
1703 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1704 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1705 select MIPS_L1_CACHE_SHIFT_7
1708 The Cavium Octeon processor is a highly integrated chip containing
1709 many ethernet hardware widgets for networking tasks. The processor
1710 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1711 Full details can be found at http://www.caviumnetworks.com.
1714 bool "Broadcom BMIPS"
1715 depends on SYS_HAS_CPU_BMIPS
1717 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1718 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1719 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1720 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1721 select CPU_SUPPORTS_32BIT_KERNEL
1722 select DMA_NONCOHERENT
1724 select SWAP_IO_SPACE
1725 select WEAK_ORDERING
1726 select CPU_SUPPORTS_HIGHMEM
1727 select CPU_HAS_PREFETCH
1728 select CPU_HAS_LOAD_STORE_LR
1729 select CPU_SUPPORTS_CPUFREQ
1730 select MIPS_EXTERNAL_TIMER
1732 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1735 bool "Netlogic XLR SoC"
1736 depends on SYS_HAS_CPU_XLR
1737 select CPU_HAS_LOAD_STORE_LR
1738 select CPU_SUPPORTS_32BIT_KERNEL
1739 select CPU_SUPPORTS_64BIT_KERNEL
1740 select CPU_SUPPORTS_HIGHMEM
1741 select CPU_SUPPORTS_HUGEPAGES
1742 select WEAK_ORDERING
1743 select WEAK_REORDERING_BEYOND_LLSC
1745 Netlogic Microsystems XLR/XLS processors.
1748 bool "Netlogic XLP SoC"
1749 depends on SYS_HAS_CPU_XLP
1750 select CPU_SUPPORTS_32BIT_KERNEL
1751 select CPU_SUPPORTS_64BIT_KERNEL
1752 select CPU_SUPPORTS_HIGHMEM
1753 select WEAK_ORDERING
1754 select WEAK_REORDERING_BEYOND_LLSC
1755 select CPU_HAS_PREFETCH
1756 select CPU_HAS_LOAD_STORE_LR
1758 select CPU_SUPPORTS_HUGEPAGES
1759 select MIPS_ASID_BITS_VARIABLE
1761 Netlogic Microsystems XLP processors.
1764 config CPU_MIPS32_3_5_FEATURES
1765 bool "MIPS32 Release 3.5 Features"
1766 depends on SYS_HAS_CPU_MIPS32_R3_5
1767 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1769 Choose this option to build a kernel for release 2 or later of the
1770 MIPS32 architecture including features from the 3.5 release such as
1771 support for Enhanced Virtual Addressing (EVA).
1773 config CPU_MIPS32_3_5_EVA
1774 bool "Enhanced Virtual Addressing (EVA)"
1775 depends on CPU_MIPS32_3_5_FEATURES
1779 Choose this option if you want to enable the Enhanced Virtual
1780 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1781 One of its primary benefits is an increase in the maximum size
1782 of lowmem (up to 3GB). If unsure, say 'N' here.
1784 config CPU_MIPS32_R5_FEATURES
1785 bool "MIPS32 Release 5 Features"
1786 depends on SYS_HAS_CPU_MIPS32_R5
1787 depends on CPU_MIPS32_R2
1789 Choose this option to build a kernel for release 2 or later of the
1790 MIPS32 architecture including features from release 5 such as
1791 support for Extended Physical Addressing (XPA).
1793 config CPU_MIPS32_R5_XPA
1794 bool "Extended Physical Addressing (XPA)"
1795 depends on CPU_MIPS32_R5_FEATURES
1797 depends on !PAGE_SIZE_4KB
1798 depends on SYS_SUPPORTS_HIGHMEM
1801 select PHYS_ADDR_T_64BIT
1804 Choose this option if you want to enable the Extended Physical
1805 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1806 benefit is to increase physical addressing equal to or greater
1807 than 40 bits. Note that this has the side effect of turning on
1808 64-bit addressing which in turn makes the PTEs 64-bit in size.
1809 If unsure, say 'N' here.
1812 config CPU_NOP_WORKAROUNDS
1815 config CPU_JUMP_WORKAROUNDS
1818 config CPU_LOONGSON2F_WORKAROUNDS
1819 bool "Loongson 2F Workarounds"
1821 select CPU_NOP_WORKAROUNDS
1822 select CPU_JUMP_WORKAROUNDS
1824 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1825 require workarounds. Without workarounds the system may hang
1826 unexpectedly. For more information please refer to the gas
1827 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1829 Loongson 2F03 and later have fixed these issues and no workarounds
1830 are needed. The workarounds have no significant side effect on them
1831 but may decrease the performance of the system so this option should
1832 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1835 If unsure, please say Y.
1836 endif # CPU_LOONGSON2F
1838 config SYS_SUPPORTS_ZBOOT
1840 select HAVE_KERNEL_GZIP
1841 select HAVE_KERNEL_BZIP2
1842 select HAVE_KERNEL_LZ4
1843 select HAVE_KERNEL_LZMA
1844 select HAVE_KERNEL_LZO
1845 select HAVE_KERNEL_XZ
1847 config SYS_SUPPORTS_ZBOOT_UART16550
1849 select SYS_SUPPORTS_ZBOOT
1851 config SYS_SUPPORTS_ZBOOT_UART_PROM
1853 select SYS_SUPPORTS_ZBOOT
1855 config CPU_LOONGSON2
1857 select CPU_SUPPORTS_32BIT_KERNEL
1858 select CPU_SUPPORTS_64BIT_KERNEL
1859 select CPU_SUPPORTS_HIGHMEM
1860 select CPU_SUPPORTS_HUGEPAGES
1861 select ARCH_HAS_PHYS_TO_DMA
1862 select CPU_HAS_LOAD_STORE_LR
1864 config CPU_LOONGSON1
1868 select CPU_HAS_PREFETCH
1869 select CPU_HAS_LOAD_STORE_LR
1870 select CPU_SUPPORTS_32BIT_KERNEL
1871 select CPU_SUPPORTS_HIGHMEM
1872 select CPU_SUPPORTS_CPUFREQ
1874 config CPU_BMIPS32_3300
1875 select SMP_UP if SMP
1878 config CPU_BMIPS4350
1880 select SYS_SUPPORTS_SMP
1881 select SYS_SUPPORTS_HOTPLUG_CPU
1883 config CPU_BMIPS4380
1885 select MIPS_L1_CACHE_SHIFT_6
1886 select SYS_SUPPORTS_SMP
1887 select SYS_SUPPORTS_HOTPLUG_CPU
1890 config CPU_BMIPS5000
1892 select MIPS_CPU_SCACHE
1893 select MIPS_L1_CACHE_SHIFT_7
1894 select SYS_SUPPORTS_SMP
1895 select SYS_SUPPORTS_HOTPLUG_CPU
1898 config SYS_HAS_CPU_LOONGSON3
1900 select CPU_SUPPORTS_CPUFREQ
1903 config SYS_HAS_CPU_LOONGSON2E
1906 config SYS_HAS_CPU_LOONGSON2F
1908 select CPU_SUPPORTS_CPUFREQ
1909 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1910 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1912 config SYS_HAS_CPU_LOONGSON1B
1915 config SYS_HAS_CPU_LOONGSON1C
1918 config SYS_HAS_CPU_MIPS32_R1
1921 config SYS_HAS_CPU_MIPS32_R2
1924 config SYS_HAS_CPU_MIPS32_R3_5
1927 config SYS_HAS_CPU_MIPS32_R5
1930 config SYS_HAS_CPU_MIPS32_R6
1933 config SYS_HAS_CPU_MIPS64_R1
1936 config SYS_HAS_CPU_MIPS64_R2
1939 config SYS_HAS_CPU_MIPS64_R6
1942 config SYS_HAS_CPU_R3000
1945 config SYS_HAS_CPU_TX39XX
1948 config SYS_HAS_CPU_VR41XX
1951 config SYS_HAS_CPU_R4300
1954 config SYS_HAS_CPU_R4X00
1957 config SYS_HAS_CPU_TX49XX
1960 config SYS_HAS_CPU_R5000
1963 config SYS_HAS_CPU_R5432
1966 config SYS_HAS_CPU_R5500
1969 config SYS_HAS_CPU_NEVADA
1972 config SYS_HAS_CPU_R8000
1975 config SYS_HAS_CPU_R10000
1978 config SYS_HAS_CPU_RM7000
1981 config SYS_HAS_CPU_SB1
1984 config SYS_HAS_CPU_CAVIUM_OCTEON
1987 config SYS_HAS_CPU_BMIPS
1990 config SYS_HAS_CPU_BMIPS32_3300
1992 select SYS_HAS_CPU_BMIPS
1994 config SYS_HAS_CPU_BMIPS4350
1996 select SYS_HAS_CPU_BMIPS
1998 config SYS_HAS_CPU_BMIPS4380
2000 select SYS_HAS_CPU_BMIPS
2002 config SYS_HAS_CPU_BMIPS5000
2004 select SYS_HAS_CPU_BMIPS
2006 config SYS_HAS_CPU_XLR
2009 config SYS_HAS_CPU_XLP
2013 # CPU may reorder R->R, R->W, W->R, W->W
2014 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2016 config WEAK_ORDERING
2020 # CPU may reorder reads and writes beyond LL/SC
2021 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2023 config WEAK_REORDERING_BEYOND_LLSC
2028 # These two indicate any level of the MIPS32 and MIPS64 architecture
2032 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2036 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2039 # These indicate the revision of the architecture
2043 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2047 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2053 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2055 select HAVE_ARCH_BITREVERSE
2056 select MIPS_ASID_BITS_VARIABLE
2057 select MIPS_CRC_SUPPORT
2060 config TARGET_ISA_REV
2062 default 1 if CPU_MIPSR1
2063 default 2 if CPU_MIPSR2
2064 default 6 if CPU_MIPSR6
2067 Reflects the ISA revision being targeted by the kernel build. This
2068 is effectively the Kconfig equivalent of MIPS_ISA_REV.
2076 config SYS_SUPPORTS_32BIT_KERNEL
2078 config SYS_SUPPORTS_64BIT_KERNEL
2080 config CPU_SUPPORTS_32BIT_KERNEL
2082 config CPU_SUPPORTS_64BIT_KERNEL
2084 config CPU_SUPPORTS_CPUFREQ
2086 config CPU_SUPPORTS_ADDRWINCFG
2088 config CPU_SUPPORTS_HUGEPAGES
2090 config CPU_SUPPORTS_UNCACHED_ACCELERATED
2092 config MIPS_PGD_C0_CONTEXT
2094 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097 # Set to y for ptrace access to watch registers.
2099 config HARDWARE_WATCHPOINTS
2101 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2106 prompt "Kernel code model"
2108 You should only select this option if you have a workload that
2109 actually benefits from 64-bit processing or if your machine has
2110 large memory. You will only be presented a single option in this
2111 menu if your system does not support both 32-bit and 64-bit kernels.
2114 bool "32-bit kernel"
2115 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118 Select this option if you want to build a 32-bit kernel.
2121 bool "64-bit kernel"
2122 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2124 Select this option if you want to build a 64-bit kernel.
2129 bool "KVM Guest Kernel"
2130 depends on BROKEN_ON_SMP
2132 Select this option if building a guest kernel for KVM (Trap & Emulate)
2135 config KVM_GUEST_TIMER_FREQ
2136 int "Count/Compare Timer Frequency (MHz)"
2137 depends on KVM_GUEST
2140 Set this to non-zero if building a guest kernel for KVM to skip RTC
2141 emulation when determining guest CPU Frequency. Instead, the guest's
2142 timer frequency is specified directly.
2144 config MIPS_VA_BITS_48
2145 bool "48 bits virtual memory"
2148 Support a maximum at least 48 bits of application virtual
2149 memory. Default is 40 bits or less, depending on the CPU.
2150 For page sizes 16k and above, this option results in a small
2151 memory overhead for page tables. For 4k page size, a fourth
2152 level of page tables is added which imposes both a memory
2153 overhead as well as slower TLB fault handling.
2158 prompt "Kernel page size"
2159 default PAGE_SIZE_4KB
2161 config PAGE_SIZE_4KB
2163 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2165 This option select the standard 4kB Linux page size. On some
2166 R3000-family processors this is the only available page size. Using
2167 4kB page size will minimize memory consumption and is therefore
2168 recommended for low memory systems.
2170 config PAGE_SIZE_8KB
2172 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2173 depends on !MIPS_VA_BITS_48
2175 Using 8kB page size will result in higher performance kernel at
2176 the price of higher memory consumption. This option is available
2177 only on R8000 and cnMIPS processors. Note that you will need a
2178 suitable Linux distribution to support this.
2180 config PAGE_SIZE_16KB
2182 depends on !CPU_R3000 && !CPU_TX39XX
2184 Using 16kB page size will result in higher performance kernel at
2185 the price of higher memory consumption. This option is available on
2186 all non-R3000 family processors. Note that you will need a suitable
2187 Linux distribution to support this.
2189 config PAGE_SIZE_32KB
2191 depends on CPU_CAVIUM_OCTEON
2192 depends on !MIPS_VA_BITS_48
2194 Using 32kB page size will result in higher performance kernel at
2195 the price of higher memory consumption. This option is available
2196 only on cnMIPS cores. Note that you will need a suitable Linux
2197 distribution to support this.
2199 config PAGE_SIZE_64KB
2201 depends on !CPU_R3000 && !CPU_TX39XX
2203 Using 64kB page size will result in higher performance kernel at
2204 the price of higher memory consumption. This option is available on
2205 all non-R3000 family processor. Not that at the time of this
2206 writing this option is still high experimental.
2210 config FORCE_MAX_ZONEORDER
2211 int "Maximum zone order"
2212 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2213 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2214 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2215 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2216 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2217 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2221 The kernel memory allocator divides physically contiguous memory
2222 blocks into "zones", where each zone is a power of two number of
2223 pages. This option selects the largest power of two that the kernel
2224 keeps in the memory allocator. If you need to allocate very large
2225 blocks of physically contiguous memory, then you may need to
2226 increase this value.
2228 This config option is actually maximum order plus one. For example,
2229 a value of 11 means that the largest free memory block is 2^10 pages.
2231 The page size is not necessarily 4KB. Keep this in mind
2232 when choosing a value for this option.
2237 config IP22_CPU_SCACHE
2242 # Support for a MIPS32 / MIPS64 style S-caches
2244 config MIPS_CPU_SCACHE
2248 config R5000_CPU_SCACHE
2252 config RM7000_CPU_SCACHE
2256 config SIBYTE_DMA_PAGEOPS
2257 bool "Use DMA to clear/copy pages"
2260 Instead of using the CPU to zero and copy pages, use a Data Mover
2261 channel. These DMA channels are otherwise unused by the standard
2262 SiByte Linux port. Seems to give a small performance benefit.
2264 config CPU_HAS_PREFETCH
2267 config CPU_GENERIC_DUMP_TLB
2269 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2271 config MIPS_FP_SUPPORT
2272 bool "Floating Point support" if EXPERT
2275 Select y to include support for floating point in the kernel
2276 including initialization of FPU hardware, FP context save & restore
2277 and emulation of an FPU where necessary. Without this support any
2278 userland program attempting to use floating point instructions will
2281 If you know that your userland will not attempt to use floating point
2282 instructions then you can say n here to shrink the kernel a little.
2286 config CPU_R2300_FPU
2288 depends on MIPS_FP_SUPPORT
2289 default y if CPU_R3000 || CPU_TX39XX
2293 depends on MIPS_FP_SUPPORT
2294 default y if !CPU_R2300_FPU
2296 config CPU_R4K_CACHE_TLB
2298 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2301 bool "MIPS MT SMP support (1 TC on each available VPE)"
2303 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2304 select CPU_MIPSR2_IRQ_VI
2305 select CPU_MIPSR2_IRQ_EI
2310 select SYS_SUPPORTS_SMP
2311 select SYS_SUPPORTS_SCHED_SMT
2312 select MIPS_PERF_SHARED_TC_COUNTERS
2314 This is a kernel model which is known as SMVP. This is supported
2315 on cores with the MT ASE and uses the available VPEs to implement
2316 virtual processors which supports SMP. This is equivalent to the
2317 Intel Hyperthreading feature. For further information go to
2318 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2324 bool "SMT (multithreading) scheduler support"
2325 depends on SYS_SUPPORTS_SCHED_SMT
2328 SMT scheduler support improves the CPU scheduler's decision making
2329 when dealing with MIPS MT enabled cores at a cost of slightly
2330 increased overhead in some places. If unsure say N here.
2332 config SYS_SUPPORTS_SCHED_SMT
2335 config SYS_SUPPORTS_MULTITHREADING
2338 config MIPS_MT_FPAFF
2339 bool "Dynamic FPU affinity for FP-intensive threads"
2341 depends on MIPS_MT_SMP
2343 config MIPSR2_TO_R6_EMULATOR
2344 bool "MIPS R2-to-R6 emulator"
2345 depends on CPU_MIPSR6
2346 depends on MIPS_FP_SUPPORT
2349 Choose this option if you want to run non-R6 MIPS userland code.
2350 Even if you say 'Y' here, the emulator will still be disabled by
2351 default. You can enable it using the 'mipsr2emu' kernel option.
2352 The only reason this is a build-time option is to save ~14K from the
2355 config SYS_SUPPORTS_VPE_LOADER
2357 depends on SYS_SUPPORTS_MULTITHREADING
2359 Indicates that the platform supports the VPE loader, and provides
2362 config MIPS_VPE_LOADER
2363 bool "VPE loader support."
2364 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2365 select CPU_MIPSR2_IRQ_VI
2366 select CPU_MIPSR2_IRQ_EI
2369 Includes a loader for loading an elf relocatable object
2370 onto another VPE and running it.
2372 config MIPS_VPE_LOADER_CMP
2375 depends on MIPS_VPE_LOADER && MIPS_CMP
2377 config MIPS_VPE_LOADER_MT
2380 depends on MIPS_VPE_LOADER && !MIPS_CMP
2382 config MIPS_VPE_LOADER_TOM
2383 bool "Load VPE program into memory hidden from linux"
2384 depends on MIPS_VPE_LOADER
2387 The loader can use memory that is present but has been hidden from
2388 Linux using the kernel command line option "mem=xxMB". It's up to
2389 you to ensure the amount you put in the option and the space your
2390 program requires is less or equal to the amount physically present.
2392 config MIPS_VPE_APSP_API
2393 bool "Enable support for AP/SP API (RTLX)"
2394 depends on MIPS_VPE_LOADER
2396 config MIPS_VPE_APSP_API_CMP
2399 depends on MIPS_VPE_APSP_API && MIPS_CMP
2401 config MIPS_VPE_APSP_API_MT
2404 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2407 bool "MIPS CMP framework support (DEPRECATED)"
2408 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2411 select SYS_SUPPORTS_SMP
2412 select WEAK_ORDERING
2415 Select this if you are using a bootloader which implements the "CMP
2416 framework" protocol (ie. YAMON) and want your kernel to make use of
2417 its ability to start secondary CPUs.
2419 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2423 bool "MIPS Coherent Processing System support"
2424 depends on SYS_SUPPORTS_MIPS_CPS
2426 select MIPS_CPS_PM if HOTPLUG_CPU
2428 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2429 select SYS_SUPPORTS_HOTPLUG_CPU
2430 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2431 select SYS_SUPPORTS_SMP
2432 select WEAK_ORDERING
2434 Select this if you wish to run an SMP kernel across multiple cores
2435 within a MIPS Coherent Processing System. When this option is
2436 enabled the kernel will probe for other cores and boot them with
2437 no external assistance. It is safe to enable this when hardware
2438 support is unavailable.
2451 config SB1_PASS_2_WORKAROUNDS
2453 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2456 config SB1_PASS_2_1_WORKAROUNDS
2458 depends on CPU_SB1 && CPU_SB1_PASS_2
2463 prompt "SmartMIPS or microMIPS ASE support"
2465 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2468 Select this if you want neither microMIPS nor SmartMIPS support
2470 config CPU_HAS_SMARTMIPS
2471 depends on SYS_SUPPORTS_SMARTMIPS
2474 SmartMIPS is a extension of the MIPS32 architecture aimed at
2475 increased security at both hardware and software level for
2476 smartcards. Enabling this option will allow proper use of the
2477 SmartMIPS instructions by Linux applications. However a kernel with
2478 this option will not work on a MIPS core without SmartMIPS core. If
2479 you don't know you probably don't have SmartMIPS and should say N
2482 config CPU_MICROMIPS
2483 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2486 When this option is enabled the kernel will be built using the
2492 bool "Support for the MIPS SIMD Architecture"
2493 depends on CPU_SUPPORTS_MSA
2494 depends on MIPS_FP_SUPPORT
2495 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2497 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2498 and a set of SIMD instructions to operate on them. When this option
2499 is enabled the kernel will support allocating & switching MSA
2500 vector register contexts. If you know that your kernel will only be
2501 running on CPUs which do not support MSA or that your userland will
2502 not be making use of it then you may wish to say N here to reduce
2503 the size & complexity of your kernel.
2516 config CPU_HAS_LOAD_STORE_LR
2519 CPU has support for unaligned load and store instructions:
2520 LWL, LWR, SWL, SWR (Load/store word left/right).
2521 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2524 # Vectored interrupt mode is an R2 feature
2526 config CPU_MIPSR2_IRQ_VI
2530 # Extended interrupt mode is an R2 feature
2532 config CPU_MIPSR2_IRQ_EI
2537 depends on !CPU_R3000
2543 config CPU_DADDI_WORKAROUNDS
2546 config CPU_R4000_WORKAROUNDS
2548 select CPU_R4400_WORKAROUNDS
2550 config CPU_R4400_WORKAROUNDS
2553 config MIPS_ASID_SHIFT
2555 default 6 if CPU_R3000 || CPU_TX39XX
2556 default 4 if CPU_R8000
2559 config MIPS_ASID_BITS
2561 default 0 if MIPS_ASID_BITS_VARIABLE
2562 default 6 if CPU_R3000 || CPU_TX39XX
2565 config MIPS_ASID_BITS_VARIABLE
2568 config MIPS_CRC_SUPPORT
2572 # - Highmem only makes sense for the 32-bit kernel.
2573 # - The current highmem code will only work properly on physically indexed
2574 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2575 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2576 # moment we protect the user and offer the highmem option only on machines
2577 # where it's known to be safe. This will not offer highmem on a few systems
2578 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2579 # indexed CPUs but we're playing safe.
2580 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2581 # know they might have memory configurations that could make use of highmem
2585 bool "High Memory Support"
2586 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2588 config CPU_SUPPORTS_HIGHMEM
2591 config SYS_SUPPORTS_HIGHMEM
2594 config SYS_SUPPORTS_SMARTMIPS
2597 config SYS_SUPPORTS_MICROMIPS
2600 config SYS_SUPPORTS_MIPS16
2603 This option must be set if a kernel might be executed on a MIPS16-
2604 enabled CPU even if MIPS16 is not actually being used. In other
2605 words, it makes the kernel MIPS16-tolerant.
2607 config CPU_SUPPORTS_MSA
2610 config ARCH_FLATMEM_ENABLE
2612 depends on !NUMA && !CPU_LOONGSON2
2614 config ARCH_DISCONTIGMEM_ENABLE
2616 default y if SGI_IP27
2618 Say Y to support efficient handling of discontiguous physical memory,
2619 for architectures which are either NUMA (Non-Uniform Memory Access)
2620 or have huge holes in the physical address space for other reasons.
2621 See <file:Documentation/vm/numa.rst> for more.
2623 config ARCH_SPARSEMEM_ENABLE
2625 select SPARSEMEM_STATIC
2629 depends on SYS_SUPPORTS_NUMA
2631 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2632 Access). This option improves performance on systems with more
2633 than two nodes; on two node systems it is generally better to
2634 leave it disabled; on single node systems disable this option
2637 config SYS_SUPPORTS_NUMA
2641 bool "Relocatable kernel"
2642 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2644 This builds a kernel image that retains relocation information
2645 so it can be loaded someplace besides the default 1MB.
2646 The relocations make the kernel binary about 15% larger,
2647 but are discarded at runtime
2649 config RELOCATION_TABLE_SIZE
2650 hex "Relocation table size"
2651 depends on RELOCATABLE
2652 range 0x0 0x01000000
2653 default "0x00100000"
2655 A table of relocation data will be appended to the kernel binary
2656 and parsed at boot to fix up the relocated kernel.
2658 This option allows the amount of space reserved for the table to be
2659 adjusted, although the default of 1Mb should be ok in most cases.
2661 The build will fail and a valid size suggested if this is too small.
2663 If unsure, leave at the default value.
2665 config RANDOMIZE_BASE
2666 bool "Randomize the address of the kernel image"
2667 depends on RELOCATABLE
2669 Randomizes the physical and virtual address at which the
2670 kernel image is loaded, as a security feature that
2671 deters exploit attempts relying on knowledge of the location
2672 of kernel internals.
2674 Entropy is generated using any coprocessor 0 registers available.
2676 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2680 config RANDOMIZE_BASE_MAX_OFFSET
2681 hex "Maximum kASLR offset" if EXPERT
2682 depends on RANDOMIZE_BASE
2683 range 0x0 0x40000000 if EVA || 64BIT
2684 range 0x0 0x08000000
2685 default "0x01000000"
2687 When kASLR is active, this provides the maximum offset that will
2688 be applied to the kernel image. It should be set according to the
2689 amount of physical RAM available in the target system minus
2690 PHYSICAL_START and must be a power of 2.
2692 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2693 EVA or 64-bit. The default is 16Mb.
2698 depends on NEED_MULTIPLE_NODES
2700 config HW_PERF_EVENTS
2701 bool "Enable hardware performance counter support for perf events"
2702 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2705 Enable hardware performance counter support for perf events. If
2706 disabled, perf events will use software events only.
2709 bool "Multi-Processing support"
2710 depends on SYS_SUPPORTS_SMP
2712 This enables support for systems with more than one CPU. If you have
2713 a system with only one CPU, say N. If you have a system with more
2714 than one CPU, say Y.
2716 If you say N here, the kernel will run on uni- and multiprocessor
2717 machines, but will use only one CPU of a multiprocessor machine. If
2718 you say Y here, the kernel will run on many, but not all,
2719 uniprocessor machines. On a uniprocessor machine, the kernel
2720 will run faster if you say N here.
2722 People using multiprocessor machines who say Y here should also say
2723 Y to "Enhanced Real Time Clock Support", below.
2725 See also the SMP-HOWTO available at
2726 <http://www.tldp.org/docs.html#howto>.
2728 If you don't know what to do here, say N.
2731 bool "Support for hot-pluggable CPUs"
2732 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2734 Say Y here to allow turning CPUs off and on. CPUs can be
2735 controlled through /sys/devices/system/cpu.
2736 (Note: power management support will enable this option
2737 automatically on SMP systems. )
2738 Say N if you want to disable CPU hotplug.
2743 config SYS_SUPPORTS_MIPS_CMP
2746 config SYS_SUPPORTS_MIPS_CPS
2749 config SYS_SUPPORTS_SMP
2752 config NR_CPUS_DEFAULT_4
2755 config NR_CPUS_DEFAULT_8
2758 config NR_CPUS_DEFAULT_16
2761 config NR_CPUS_DEFAULT_32
2764 config NR_CPUS_DEFAULT_64
2768 int "Maximum number of CPUs (2-256)"
2771 default "4" if NR_CPUS_DEFAULT_4
2772 default "8" if NR_CPUS_DEFAULT_8
2773 default "16" if NR_CPUS_DEFAULT_16
2774 default "32" if NR_CPUS_DEFAULT_32
2775 default "64" if NR_CPUS_DEFAULT_64
2777 This allows you to specify the maximum number of CPUs which this
2778 kernel will support. The maximum supported value is 32 for 32-bit
2779 kernel and 64 for 64-bit kernels; the minimum value which makes
2780 sense is 1 for Qemu (useful only for kernel debugging purposes)
2781 and 2 for all others.
2783 This is purely to save memory - each supported CPU adds
2784 approximately eight kilobytes to the kernel image. For best
2785 performance should round up your number of processors to the next
2788 config MIPS_PERF_SHARED_TC_COUNTERS
2791 config MIPS_NR_CPU_NR_MAP_1024
2794 config MIPS_NR_CPU_NR_MAP
2797 default 1024 if MIPS_NR_CPU_NR_MAP_1024
2798 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2801 # Timer Interrupt Frequency Configuration
2805 prompt "Timer frequency"
2808 Allows the configuration of the timer frequency.
2811 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2814 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2817 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2820 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2823 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2826 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2829 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2832 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2836 config SYS_SUPPORTS_24HZ
2839 config SYS_SUPPORTS_48HZ
2842 config SYS_SUPPORTS_100HZ
2845 config SYS_SUPPORTS_128HZ
2848 config SYS_SUPPORTS_250HZ
2851 config SYS_SUPPORTS_256HZ
2854 config SYS_SUPPORTS_1000HZ
2857 config SYS_SUPPORTS_1024HZ
2860 config SYS_SUPPORTS_ARBIT_HZ
2862 default y if !SYS_SUPPORTS_24HZ && \
2863 !SYS_SUPPORTS_48HZ && \
2864 !SYS_SUPPORTS_100HZ && \
2865 !SYS_SUPPORTS_128HZ && \
2866 !SYS_SUPPORTS_250HZ && \
2867 !SYS_SUPPORTS_256HZ && \
2868 !SYS_SUPPORTS_1000HZ && \
2869 !SYS_SUPPORTS_1024HZ
2875 default 100 if HZ_100
2876 default 128 if HZ_128
2877 default 250 if HZ_250
2878 default 256 if HZ_256
2879 default 1000 if HZ_1000
2880 default 1024 if HZ_1024
2883 def_bool HIGH_RES_TIMERS
2886 bool "Kexec system call"
2889 kexec is a system call that implements the ability to shutdown your
2890 current kernel, and to start another kernel. It is like a reboot
2891 but it is independent of the system firmware. And like a reboot
2892 you can start any kernel with it, not just Linux.
2894 The name comes from the similarity to the exec system call.
2896 It is an ongoing process to be certain the hardware in a machine
2897 is properly shutdown, so do not be surprised if this code does not
2898 initially work for you. As of this writing the exact hardware
2899 interface is strongly in flux, so no good recommendation can be
2903 bool "Kernel crash dumps"
2905 Generate crash dump after being started by kexec.
2906 This should be normally only set in special crash dump kernels
2907 which are loaded in the main kernel with kexec-tools into
2908 a specially reserved region and then later executed after
2909 a crash by kdump/kexec. The crash dump kernel must be compiled
2910 to a memory address not used by the main kernel or firmware using
2913 config PHYSICAL_START
2914 hex "Physical address where the kernel is loaded"
2915 default "0xffffffff84000000"
2916 depends on CRASH_DUMP
2918 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2919 If you plan to use kernel for capturing the crash dump change
2920 this value to start of the reserved region (the "X" value as
2921 specified in the "crashkernel=YM@XM" command line boot parameter
2922 passed to the panic-ed kernel).
2925 bool "Enable seccomp to safely compute untrusted bytecode"
2929 This kernel feature is useful for number crunching applications
2930 that may need to compute untrusted bytecode during their
2931 execution. By using pipes or other transports made available to
2932 the process as file descriptors supporting the read/write
2933 syscalls, it's possible to isolate those applications in
2934 their own address space using seccomp. Once seccomp is
2935 enabled via /proc/<pid>/seccomp, it cannot be disabled
2936 and the task is only allowed to execute a few safe syscalls
2937 defined by each seccomp mode.
2939 If unsure, say Y. Only embedded should say N here.
2941 config MIPS_O32_FP64_SUPPORT
2942 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2943 depends on 32BIT || MIPS32_O32
2945 When this is enabled, the kernel will support use of 64-bit floating
2946 point registers with binaries using the O32 ABI along with the
2947 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2948 32-bit MIPS systems this support is at the cost of increasing the
2949 size and complexity of the compiled FPU emulator. Thus if you are
2950 running a MIPS32 system and know that none of your userland binaries
2951 will require 64-bit floating point, you may wish to reduce the size
2952 of your kernel & potentially improve FP emulation performance by
2955 Although binutils currently supports use of this flag the details
2956 concerning its effect upon the O32 ABI in userland are still being
2957 worked on. In order to avoid userland becoming dependant upon current
2958 behaviour before the details have been finalised, this option should
2959 be considered experimental and only enabled by those working upon
2967 select OF_EARLY_FLATTREE
2977 prompt "Kernel appended dtb support" if USE_OF
2978 default MIPS_NO_APPENDED_DTB
2980 config MIPS_NO_APPENDED_DTB
2983 Do not enable appended dtb support.
2985 config MIPS_ELF_APPENDED_DTB
2988 With this option, the boot code will look for a device tree binary
2989 DTB) included in the vmlinux ELF section .appended_dtb. By default
2990 it is empty and the DTB can be appended using binutils command
2993 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2995 This is meant as a backward compatiblity convenience for those
2996 systems with a bootloader that can't be upgraded to accommodate
2997 the documented boot protocol using a device tree.
2999 config MIPS_RAW_APPENDED_DTB
3000 bool "vmlinux.bin or vmlinuz.bin"
3002 With this option, the boot code will look for a device tree binary
3003 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3004 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3006 This is meant as a backward compatibility convenience for those
3007 systems with a bootloader that can't be upgraded to accommodate
3008 the documented boot protocol using a device tree.
3010 Beware that there is very little in terms of protection against
3011 this option being confused by leftover garbage in memory that might
3012 look like a DTB header after a reboot if no actual DTB is appended
3013 to vmlinux.bin. Do not leave this option active in a production kernel
3014 if you don't intend to always append a DTB.
3018 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3019 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3022 default MIPS_CMDLINE_FROM_BOOTLOADER
3024 config MIPS_CMDLINE_FROM_DTB
3026 bool "Dtb kernel arguments if available"
3028 config MIPS_CMDLINE_DTB_EXTEND
3030 bool "Extend dtb kernel arguments with bootloader arguments"
3032 config MIPS_CMDLINE_FROM_BOOTLOADER
3033 bool "Bootloader kernel arguments if available"
3035 config MIPS_CMDLINE_BUILTIN_EXTEND
3036 depends on CMDLINE_BOOL
3037 bool "Extend builtin kernel arguments with bootloader arguments"
3042 config LOCKDEP_SUPPORT
3046 config STACKTRACE_SUPPORT
3050 config HAVE_LATENCYTOP_SUPPORT
3054 config PGTABLE_LEVELS
3056 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3057 default 3 if 64BIT && !PAGE_SIZE_64KB
3060 config MIPS_AUTO_PFN_OFFSET
3063 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3071 bool "Support for PCI controller"
3072 depends on HW_HAS_PCI
3075 Find out whether you have a PCI motherboard. PCI is the name of a
3076 bus system, i.e. the way the CPU talks to the other stuff inside
3077 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
3081 bool "Support for HT-linked PCI"
3083 depends on CPU_LOONGSON3
3087 Loongson family machines use Hyper-Transport bus for inter-core
3088 connection and device connection. The PCI bus is a subordinate
3089 linked at HT. Choose Y for Loongson-3 based machines.
3094 config PCI_DOMAINS_GENERIC
3097 config PCI_DRIVERS_GENERIC
3098 select PCI_DOMAINS_GENERIC if PCI_DOMAINS
3101 config PCI_DRIVERS_LEGACY
3102 def_bool !PCI_DRIVERS_GENERIC
3103 select NO_GENERIC_PCI_IOPORT_MAP
3105 source "drivers/pci/Kconfig"
3108 # ISA support is now enabled via select. Too many systems still have the one
3109 # or other ISA chip on the board that users don't know about so don't expect
3110 # users to choose the right thing ...
3117 depends on HW_HAS_EISA
3119 select GENERIC_ISA_DMA
3121 The Extended Industry Standard Architecture (EISA) bus was
3122 developed as an open alternative to the IBM MicroChannel bus.
3124 The EISA bus provided some of the features of the IBM MicroChannel
3125 bus while maintaining backward compatibility with cards made for
3126 the older ISA bus. The EISA bus saw limited use between 1988 and
3127 1995 when it was made obsolete by the PCI bus.
3129 Say Y here if you are building a kernel for an EISA-based machine.
3133 source "drivers/eisa/Kconfig"
3136 bool "TURBOchannel support"
3137 depends on MACH_DECSTATION
3139 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3140 processors. TURBOchannel programming specifications are available
3142 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3144 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3145 Linux driver support status is documented at:
3146 <http://www.linux-mips.org/wiki/DECstation>
3152 config ARCH_MMAP_RND_BITS_MIN
3156 config ARCH_MMAP_RND_BITS_MAX
3160 config ARCH_MMAP_RND_COMPAT_BITS_MIN
3163 config ARCH_MMAP_RND_COMPAT_BITS_MAX
3170 select MIPS_EXTERNAL_TIMER
3178 source "drivers/pcmcia/Kconfig"
3185 tristate "RapidIO support"
3186 depends on HAS_RAPIDIO || PCI
3188 If you say Y here, the kernel will include drivers and
3189 infrastructure code to support RapidIO interconnect devices.
3191 source "drivers/rapidio/Kconfig"
3198 config MIPS32_COMPAT
3204 config SYSVIPC_COMPAT
3208 bool "Kernel support for o32 binaries"
3210 select ARCH_WANT_OLD_COMPAT_IPC
3212 select MIPS32_COMPAT
3213 select SYSVIPC_COMPAT if SYSVIPC
3215 Select this option if you want to run o32 binaries. These are pure
3216 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
3217 existing binaries are in this format.
3222 bool "Kernel support for n32 binaries"
3225 select MIPS32_COMPAT
3226 select SYSVIPC_COMPAT if SYSVIPC
3228 Select this option if you want to run n32 binaries. These are
3229 64-bit binaries using 32-bit quantities for addressing and certain
3230 data that would normally be 64-bit. They are used in special
3237 default y if MIPS32_O32 || MIPS32_N32
3240 menu "Power management options"
3242 config ARCH_HIBERNATION_POSSIBLE
3244 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3246 config ARCH_SUSPEND_POSSIBLE
3248 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3250 source "kernel/power/Kconfig"
3254 config MIPS_EXTERNAL_TIMER
3257 menu "CPU Power Management"
3259 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3260 source "drivers/cpufreq/Kconfig"
3263 source "drivers/cpuidle/Kconfig"
3267 source "drivers/firmware/Kconfig"
3269 source "arch/mips/kvm/Kconfig"