4 select ARCH_SUPPORTS_UPROBES
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
8 select ARCH_USE_BUILTIN_BSWAP
9 select HAVE_CONTEXT_TRACKING
10 select HAVE_GENERIC_DMA_COHERENT
13 select HAVE_PERF_EVENTS
14 select PERF_USE_VMALLOC
16 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK
18 select HAVE_BPF_JIT if !CPU_MICROMIPS
19 select HAVE_FUNCTION_TRACER
20 select HAVE_DYNAMIC_FTRACE
21 select HAVE_FTRACE_MCOUNT_RECORD
22 select HAVE_C_RECORDMCOUNT
23 select HAVE_FUNCTION_GRAPH_TRACER
25 select HAVE_KRETPROBES
26 select HAVE_SYSCALL_TRACEPOINTS
27 select HAVE_DEBUG_KMEMLEAK
28 select HAVE_SYSCALL_TRACEPOINTS
29 select ARCH_HAS_ELF_RANDOMIZE
30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
31 select RTC_LIB if !MACH_LOONGSON64
32 select GENERIC_ATOMIC64 if !64BIT
33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
35 select HAVE_DMA_CONTIGUOUS
36 select HAVE_DMA_API_DEBUG
37 select GENERIC_IRQ_PROBE
38 select GENERIC_IRQ_SHOW
39 select GENERIC_PCI_IOMAP
40 select HAVE_ARCH_JUMP_LABEL
41 select ARCH_WANT_IPC_PARSE_VERSION
42 select IRQ_FORCED_THREADING
44 select HAVE_MEMBLOCK_NODE_MAP
45 select ARCH_DISCARD_MEMBLOCK
46 select GENERIC_SMP_IDLE_THREAD
47 select BUILDTIME_EXTABLE_SORT
48 select GENERIC_CLOCKEVENTS
49 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
50 select GENERIC_CMOS_UPDATE
51 select HAVE_MOD_ARCH_SPECIFIC
53 select MODULES_USE_ELF_REL if MODULES
54 select MODULES_USE_ELF_RELA if MODULES && 64BIT
55 select CLONE_BACKWARDS
56 select HAVE_DEBUG_STACKOVERFLOW
57 select HAVE_CC_STACKPROTECTOR
58 select CPU_PM if CPU_IDLE
59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
60 select ARCH_BINFMT_ELF_STATE
61 select SYSCTL_EXCEPTION_TRACE
62 select HAVE_VIRT_CPU_ACCOUNTING_GEN
63 select HAVE_IRQ_TIME_ACCOUNTING
64 select GENERIC_TIME_VSYSCALL
65 select ARCH_CLOCKSOURCE_DATA
67 menu "Machine selection"
74 bool "Alchemy processor based machines"
75 select ARCH_PHYS_ADDR_T_64BIT
79 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_APM_EMULATION
83 select ARCH_REQUIRE_GPIOLIB
84 select SYS_SUPPORTS_ZBOOT
88 bool "Texas Instruments AR7"
90 select DMA_NONCOHERENT
96 select SYS_HAS_CPU_MIPS32_R1
97 select SYS_HAS_EARLY_PRINTK
98 select SYS_SUPPORTS_32BIT_KERNEL
99 select SYS_SUPPORTS_LITTLE_ENDIAN
100 select SYS_SUPPORTS_MIPS16
101 select SYS_SUPPORTS_ZBOOT_UART16550
102 select ARCH_REQUIRE_GPIOLIB
106 Support for the Texas Instruments AR7 System-on-a-Chip
107 family: TNETD7100, 7200 and 7300.
110 bool "Atheros AR231x/AR531x SoC support"
113 select DMA_NONCOHERENT
116 select SYS_HAS_CPU_MIPS32_R1
117 select SYS_SUPPORTS_BIG_ENDIAN
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_HAS_EARLY_PRINTK
121 Support for Atheros AR231x and Atheros AR531x based boards
124 bool "Atheros AR71XX/AR724X/AR913X based boards"
125 select ARCH_HAS_RESET_CONTROLLER
126 select ARCH_REQUIRE_GPIOLIB
130 select DMA_NONCOHERENT
136 select SYS_HAS_CPU_MIPS32_R2
137 select SYS_HAS_EARLY_PRINTK
138 select SYS_SUPPORTS_32BIT_KERNEL
139 select SYS_SUPPORTS_BIG_ENDIAN
140 select SYS_SUPPORTS_MIPS16
141 select SYS_SUPPORTS_ZBOOT
144 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
147 bool "Broadcom Generic BMIPS kernel"
149 select NO_EXCEPT_FILL
155 select BCM7038_L1_IRQ
156 select BCM7120_L2_IRQ
157 select BRCMSTB_L2_IRQ
159 select DMA_NONCOHERENT
160 select SYS_SUPPORTS_32BIT_KERNEL
161 select SYS_SUPPORTS_LITTLE_ENDIAN
162 select SYS_SUPPORTS_BIG_ENDIAN
163 select SYS_SUPPORTS_HIGHMEM
164 select SYS_HAS_CPU_BMIPS32_3300
165 select SYS_HAS_CPU_BMIPS4350
166 select SYS_HAS_CPU_BMIPS4380
167 select SYS_HAS_CPU_BMIPS5000
169 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
170 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
171 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
174 Build a generic DT-based kernel image that boots on select
175 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
176 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
177 must be set appropriately for your board.
180 bool "Broadcom BCM47XX based boards"
181 select ARCH_WANT_OPTIONAL_GPIOLIB
185 select DMA_NONCOHERENT
188 select SYS_HAS_CPU_MIPS32_R1
189 select NO_EXCEPT_FILL
190 select SYS_SUPPORTS_32BIT_KERNEL
191 select SYS_SUPPORTS_LITTLE_ENDIAN
192 select SYS_SUPPORTS_MIPS16
193 select SYS_HAS_EARLY_PRINTK
194 select USE_GENERIC_EARLY_PRINTK_8250
196 select LEDS_GPIO_REGISTER
199 Support for BCM47XX based boards
202 bool "Broadcom BCM63XX based boards"
207 select DMA_NONCOHERENT
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_BIG_ENDIAN
211 select SYS_HAS_EARLY_PRINTK
213 select ARCH_REQUIRE_GPIOLIB
215 select MIPS_L1_CACHE_SHIFT_4
217 Support for BCM63XX based boards
224 select DMA_NONCOHERENT
230 select PCI_GT64XXX_PCI0
232 select SYS_HAS_CPU_NEVADA
233 select SYS_HAS_EARLY_PRINTK
234 select SYS_SUPPORTS_32BIT_KERNEL
235 select SYS_SUPPORTS_64BIT_KERNEL
236 select SYS_SUPPORTS_LITTLE_ENDIAN
237 select USE_GENERIC_EARLY_PRINTK_8250
239 config MACH_DECSTATION
243 select CEVT_R4K if CPU_R4X00
245 select CSRC_R4K if CPU_R4X00
246 select CPU_DADDI_WORKAROUNDS if 64BIT
247 select CPU_R4000_WORKAROUNDS if 64BIT
248 select CPU_R4400_WORKAROUNDS if 64BIT
249 select DMA_NONCOHERENT
252 select SYS_HAS_CPU_R3000
253 select SYS_HAS_CPU_R4X00
254 select SYS_SUPPORTS_32BIT_KERNEL
255 select SYS_SUPPORTS_64BIT_KERNEL
256 select SYS_SUPPORTS_LITTLE_ENDIAN
257 select SYS_SUPPORTS_128HZ
258 select SYS_SUPPORTS_256HZ
259 select SYS_SUPPORTS_1024HZ
260 select MIPS_L1_CACHE_SHIFT_4
262 This enables support for DEC's MIPS based workstations. For details
263 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
264 DECstation porting pages on <http://decstation.unix-ag.org/>.
266 If you have one of the following DECstation Models you definitely
267 want to choose R4xx0 for the CPU Type:
274 otherwise choose R3000.
277 bool "Jazz family of machines"
280 select ARCH_MAY_HAVE_PC_FDC
283 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
284 select GENERIC_ISA_DMA
285 select HAVE_PCSPKR_PLATFORM
290 select SYS_HAS_CPU_R4X00
291 select SYS_SUPPORTS_32BIT_KERNEL
292 select SYS_SUPPORTS_64BIT_KERNEL
293 select SYS_SUPPORTS_100HZ
295 This a family of machines based on the MIPS R4030 chipset which was
296 used by several vendors to build RISC/os and Windows NT workstations.
297 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
298 Olivetti M700-10 workstations.
301 bool "Ingenic SoC based machines"
302 select SYS_SUPPORTS_32BIT_KERNEL
303 select SYS_SUPPORTS_LITTLE_ENDIAN
304 select SYS_SUPPORTS_ZBOOT_UART16550
305 select DMA_NONCOHERENT
307 select ARCH_REQUIRE_GPIOLIB
309 select GENERIC_IRQ_CHIP
315 bool "Lantiq based platforms"
316 select DMA_NONCOHERENT
320 select SYS_HAS_CPU_MIPS32_R1
321 select SYS_HAS_CPU_MIPS32_R2
322 select SYS_SUPPORTS_BIG_ENDIAN
323 select SYS_SUPPORTS_32BIT_KERNEL
324 select SYS_SUPPORTS_MIPS16
325 select SYS_SUPPORTS_MULTITHREADING
326 select SYS_HAS_EARLY_PRINTK
327 select ARCH_REQUIRE_GPIOLIB
330 select HAVE_MACH_CLKDEV
334 select PINCTRL_LANTIQ
335 select ARCH_HAS_RESET_CONTROLLER
336 select RESET_CONTROLLER
339 bool "LASAT Networks platforms"
343 select DMA_NONCOHERENT
344 select SYS_HAS_EARLY_PRINTK
347 select PCI_GT64XXX_PCI0
349 select R5000_CPU_SCACHE
350 select SYS_HAS_CPU_R5000
351 select SYS_SUPPORTS_32BIT_KERNEL
352 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
355 config MACH_LOONGSON32
356 bool "Loongson-1 family of machines"
357 select SYS_SUPPORTS_ZBOOT
359 This enables support for the Loongson-1 family of machines.
361 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
362 the Institute of Computing Technology (ICT), Chinese Academy of
365 config MACH_LOONGSON64
366 bool "Loongson-2/3 family of machines"
367 select SYS_SUPPORTS_ZBOOT
369 This enables the support of Loongson-2/3 family of machines.
371 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
372 family of multi-core CPUs. They are both 64-bit general-purpose
373 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
374 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
375 in the People's Republic of China. The chief architect is Professor
378 config MACH_PISTACHIO
379 bool "IMG Pistachio SoC based boards"
380 select ARCH_REQUIRE_GPIOLIB
384 select CLKSRC_MIPS_GIC
387 select DMA_MAYBE_COHERENT
391 select MIPS_CPU_SCACHE
395 select SYS_HAS_CPU_MIPS32_R2
396 select SYS_SUPPORTS_32BIT_KERNEL
397 select SYS_SUPPORTS_LITTLE_ENDIAN
398 select SYS_SUPPORTS_MIPS_CPS
399 select SYS_SUPPORTS_MULTITHREADING
400 select SYS_SUPPORTS_ZBOOT
401 select SYS_HAS_EARLY_PRINTK
402 select USE_GENERIC_EARLY_PRINTK_8250
405 This enables support for the IMG Pistachio SoC platform.
408 bool "MIPSfpga Xilinx based boards"
409 select ARCH_REQUIRE_GPIOLIB
418 select MIPS_CPU_SCACHE
419 select SYS_HAS_EARLY_PRINTK
420 select SYS_HAS_CPU_MIPS32_R2
421 select SYS_SUPPORTS_32BIT_KERNEL
422 select SYS_SUPPORTS_LITTLE_ENDIAN
423 select SYS_SUPPORTS_ZBOOT_UART16550
425 select USE_GENERIC_EARLY_PRINTK_8250
427 This enables support for the IMG University Program MIPSfpga platform.
430 bool "MIPS Malta board"
431 select ARCH_MAY_HAVE_PC_FDC
437 select CLKSRC_MIPS_GIC
439 select DMA_MAYBE_COHERENT
440 select GENERIC_ISA_DMA
441 select HAVE_PCSPKR_PLATFORM
448 select MIPS_CPU_SCACHE
449 select MIPS_L1_CACHE_SHIFT_6
450 select PCI_GT64XXX_PCI0
454 select SYS_HAS_CPU_MIPS32_R1
455 select SYS_HAS_CPU_MIPS32_R2
456 select SYS_HAS_CPU_MIPS32_R3_5
457 select SYS_HAS_CPU_MIPS32_R5
458 select SYS_HAS_CPU_MIPS32_R6
459 select SYS_HAS_CPU_MIPS64_R1
460 select SYS_HAS_CPU_MIPS64_R2
461 select SYS_HAS_CPU_MIPS64_R6
462 select SYS_HAS_CPU_NEVADA
463 select SYS_HAS_CPU_RM7000
464 select SYS_SUPPORTS_32BIT_KERNEL
465 select SYS_SUPPORTS_64BIT_KERNEL
466 select SYS_SUPPORTS_BIG_ENDIAN
467 select SYS_SUPPORTS_HIGHMEM
468 select SYS_SUPPORTS_LITTLE_ENDIAN
469 select SYS_SUPPORTS_MICROMIPS
470 select SYS_SUPPORTS_MIPS_CMP
471 select SYS_SUPPORTS_MIPS_CPS
472 select SYS_SUPPORTS_MIPS16
473 select SYS_SUPPORTS_MULTITHREADING
474 select SYS_SUPPORTS_SMARTMIPS
475 select SYS_SUPPORTS_ZBOOT
477 select ZONE_DMA32 if 64BIT
481 This enables support for the MIPS Technologies Malta evaluation
485 bool "Microchip PIC32 Family"
487 This enables support for the Microchip PIC32 family of platforms.
489 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
493 bool "MIPS SEAD3 board"
499 select CLKSRC_MIPS_GIC
501 select CPU_MIPSR2_IRQ_VI
502 select CPU_MIPSR2_IRQ_EI
503 select DMA_NONCOHERENT
508 select SYS_HAS_CPU_MIPS32_R1
509 select SYS_HAS_CPU_MIPS32_R2
510 select SYS_HAS_CPU_MIPS64_R1
511 select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_32BIT_KERNEL
513 select SYS_SUPPORTS_64BIT_KERNEL
514 select SYS_SUPPORTS_BIG_ENDIAN
515 select SYS_SUPPORTS_LITTLE_ENDIAN
516 select SYS_SUPPORTS_SMARTMIPS
517 select SYS_SUPPORTS_MICROMIPS
518 select SYS_SUPPORTS_MIPS16
519 select USB_EHCI_BIG_ENDIAN_DESC
520 select USB_EHCI_BIG_ENDIAN_MMIO
523 This enables support for the MIPS Technologies SEAD3 evaluation
527 bool "NEC EMMA2RH Mark-eins board"
531 This enables support for the NEC Electronics Mark-eins boards.
534 bool "NEC VR4100 series based machines"
537 select SYS_HAS_CPU_VR41XX
538 select SYS_SUPPORTS_MIPS16
539 select ARCH_REQUIRE_GPIOLIB
542 bool "NXP STB220 board"
545 Support for NXP Semiconductors STB220 Development Board.
552 Support for NXP Semiconductors STB225 Development Board.
555 bool "PMC-Sierra MSP chipsets"
558 select DMA_NONCOHERENT
560 select NO_EXCEPT_FILL
562 select SYS_HAS_CPU_MIPS32_R1
563 select SYS_HAS_CPU_MIPS32_R2
564 select SYS_SUPPORTS_32BIT_KERNEL
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_MIPS16
569 select SERIAL_8250_CONSOLE
570 select USB_EHCI_BIG_ENDIAN_MMIO
571 select USB_EHCI_BIG_ENDIAN_DESC
573 This adds support for the PMC-Sierra family of Multi-Service
574 Processor System-On-A-Chips. These parts include a number
575 of integrated peripherals, interfaces and DSPs in addition to
576 a variety of MIPS cores.
579 bool "Ralink based machines"
583 select DMA_NONCOHERENT
586 select SYS_HAS_CPU_MIPS32_R1
587 select SYS_HAS_CPU_MIPS32_R2
588 select SYS_SUPPORTS_32BIT_KERNEL
589 select SYS_SUPPORTS_LITTLE_ENDIAN
590 select SYS_SUPPORTS_MIPS16
591 select SYS_HAS_EARLY_PRINTK
592 select HAVE_MACH_CLKDEV
594 select ARCH_HAS_RESET_CONTROLLER
595 select RESET_CONTROLLER
598 bool "SGI IP22 (Indy/Indigo2)"
604 select DEFAULT_SGI_PARTITION
605 select DMA_NONCOHERENT
609 select IP22_CPU_SCACHE
611 select GENERIC_ISA_DMA_SUPPORT_BROKEN
613 select SGI_HAS_INDYDOG
619 select SYS_HAS_CPU_R4X00
620 select SYS_HAS_CPU_R5000
622 # Disable EARLY_PRINTK for now since it leads to overwritten prom
623 # memory during early boot on some machines.
625 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
626 # for a more details discussion
628 # select SYS_HAS_EARLY_PRINTK
629 select SYS_SUPPORTS_32BIT_KERNEL
630 select SYS_SUPPORTS_64BIT_KERNEL
631 select SYS_SUPPORTS_BIG_ENDIAN
632 select MIPS_L1_CACHE_SHIFT_7
634 This are the SGI Indy, Challenge S and Indigo2, as well as certain
635 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
636 that runs on these, say Y here.
639 bool "SGI IP27 (Origin200/2000)"
643 select DEFAULT_SGI_PARTITION
645 select SYS_HAS_EARLY_PRINTK
647 select NR_CPUS_DEFAULT_64
648 select SYS_HAS_CPU_R10000
649 select SYS_SUPPORTS_64BIT_KERNEL
650 select SYS_SUPPORTS_BIG_ENDIAN
651 select SYS_SUPPORTS_NUMA
652 select SYS_SUPPORTS_SMP
653 select MIPS_L1_CACHE_SHIFT_7
655 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
656 workstations. To compile a Linux kernel that runs on these, say Y
660 bool "SGI IP28 (Indigo2 R10k)"
666 select DEFAULT_SGI_PARTITION
667 select DMA_NONCOHERENT
668 select GENERIC_ISA_DMA_SUPPORT_BROKEN
674 select SGI_HAS_INDYDOG
680 select SYS_HAS_CPU_R10000
682 # Disable EARLY_PRINTK for now since it leads to overwritten prom
683 # memory during early boot on some machines.
685 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
686 # for a more details discussion
688 # select SYS_HAS_EARLY_PRINTK
689 select SYS_SUPPORTS_64BIT_KERNEL
690 select SYS_SUPPORTS_BIG_ENDIAN
691 select MIPS_L1_CACHE_SHIFT_7
693 This is the SGI Indigo2 with R10000 processor. To compile a Linux
694 kernel that runs on these, say Y here.
703 select DMA_NONCOHERENT
706 select R5000_CPU_SCACHE
707 select RM7000_CPU_SCACHE
708 select SYS_HAS_CPU_R5000
709 select SYS_HAS_CPU_R10000 if BROKEN
710 select SYS_HAS_CPU_RM7000
711 select SYS_HAS_CPU_NEVADA
712 select SYS_SUPPORTS_64BIT_KERNEL
713 select SYS_SUPPORTS_BIG_ENDIAN
715 If you want this kernel to run on SGI O2 workstation, say Y here.
718 bool "Sibyte BCM91120C-CRhine"
721 select SIBYTE_BCM1120
723 select SYS_HAS_CPU_SB1
724 select SYS_SUPPORTS_BIG_ENDIAN
725 select SYS_SUPPORTS_LITTLE_ENDIAN
728 bool "Sibyte BCM91120x-Carmel"
731 select SIBYTE_BCM1120
733 select SYS_HAS_CPU_SB1
734 select SYS_SUPPORTS_BIG_ENDIAN
735 select SYS_SUPPORTS_LITTLE_ENDIAN
738 bool "Sibyte BCM91125C-CRhone"
741 select SIBYTE_BCM1125
743 select SYS_HAS_CPU_SB1
744 select SYS_SUPPORTS_BIG_ENDIAN
745 select SYS_SUPPORTS_HIGHMEM
746 select SYS_SUPPORTS_LITTLE_ENDIAN
749 bool "Sibyte BCM91125E-Rhone"
752 select SIBYTE_BCM1125H
754 select SYS_HAS_CPU_SB1
755 select SYS_SUPPORTS_BIG_ENDIAN
756 select SYS_SUPPORTS_LITTLE_ENDIAN
759 bool "Sibyte BCM91250A-SWARM"
762 select HAVE_PATA_PLATFORM
765 select SYS_HAS_CPU_SB1
766 select SYS_SUPPORTS_BIG_ENDIAN
767 select SYS_SUPPORTS_HIGHMEM
768 select SYS_SUPPORTS_LITTLE_ENDIAN
769 select ZONE_DMA32 if 64BIT
771 config SIBYTE_LITTLESUR
772 bool "Sibyte BCM91250C2-LittleSur"
775 select HAVE_PATA_PLATFORM
778 select SYS_HAS_CPU_SB1
779 select SYS_SUPPORTS_BIG_ENDIAN
780 select SYS_SUPPORTS_HIGHMEM
781 select SYS_SUPPORTS_LITTLE_ENDIAN
783 config SIBYTE_SENTOSA
784 bool "Sibyte BCM91250E-Sentosa"
789 select SYS_HAS_CPU_SB1
790 select SYS_SUPPORTS_BIG_ENDIAN
791 select SYS_SUPPORTS_LITTLE_ENDIAN
794 bool "Sibyte BCM91480B-BigSur"
797 select NR_CPUS_DEFAULT_4
798 select SIBYTE_BCM1x80
800 select SYS_HAS_CPU_SB1
801 select SYS_SUPPORTS_BIG_ENDIAN
802 select SYS_SUPPORTS_HIGHMEM
803 select SYS_SUPPORTS_LITTLE_ENDIAN
804 select ZONE_DMA32 if 64BIT
807 bool "SNI RM200/300/400"
808 select FW_ARC if CPU_LITTLE_ENDIAN
809 select FW_ARC32 if CPU_LITTLE_ENDIAN
810 select FW_SNIPROM if CPU_BIG_ENDIAN
811 select ARCH_MAY_HAVE_PC_FDC
815 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
816 select DMA_NONCOHERENT
817 select GENERIC_ISA_DMA
818 select HAVE_PCSPKR_PLATFORM
825 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
826 select SYS_HAS_CPU_R4X00
827 select SYS_HAS_CPU_R5000
828 select SYS_HAS_CPU_R10000
829 select R5000_CPU_SCACHE
830 select SYS_HAS_EARLY_PRINTK
831 select SYS_SUPPORTS_32BIT_KERNEL
832 select SYS_SUPPORTS_64BIT_KERNEL
833 select SYS_SUPPORTS_BIG_ENDIAN
834 select SYS_SUPPORTS_HIGHMEM
835 select SYS_SUPPORTS_LITTLE_ENDIAN
837 The SNI RM200/300/400 are MIPS-based machines manufactured by
838 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
839 Technology and now in turn merged with Fujitsu. Say Y here to
840 support this machine type.
843 bool "Toshiba TX39 series based machines"
846 bool "Toshiba TX49 series based machines"
848 config MIKROTIK_RB532
849 bool "Mikrotik RB532 boards"
852 select DMA_NONCOHERENT
855 select SYS_HAS_CPU_MIPS32_R1
856 select SYS_SUPPORTS_32BIT_KERNEL
857 select SYS_SUPPORTS_LITTLE_ENDIAN
860 select ARCH_REQUIRE_GPIOLIB
861 select MIPS_L1_CACHE_SHIFT_4
863 Support the Mikrotik(tm) RouterBoard 532 series,
864 based on the IDT RC32434 SoC.
866 config CAVIUM_OCTEON_SOC
867 bool "Cavium Networks Octeon SoC based boards"
869 select ARCH_PHYS_ADDR_T_64BIT
871 select SYS_SUPPORTS_64BIT_KERNEL
872 select SYS_SUPPORTS_BIG_ENDIAN
874 select EDAC_ATOMIC_SCRUB
875 select SYS_SUPPORTS_LITTLE_ENDIAN
876 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
877 select SYS_HAS_EARLY_PRINTK
878 select SYS_HAS_CPU_CAVIUM_OCTEON
883 select ARCH_REQUIRE_GPIOLIB
886 select ARCH_SPARSEMEM_ENABLE
887 select SYS_SUPPORTS_SMP
888 select NR_CPUS_DEFAULT_16
890 select MTD_COMPLEX_MAPPINGS
892 This option supports all of the Octeon reference boards from Cavium
893 Networks. It builds a kernel that dynamically determines the Octeon
894 CPU type and supports all known board reference implementations.
895 Some of the supported boards are:
902 Say Y here for most Octeon reference boards.
905 bool "Netlogic XLR/XLS based systems"
908 select SYS_HAS_CPU_XLR
909 select SYS_SUPPORTS_SMP
912 select SYS_SUPPORTS_32BIT_KERNEL
913 select SYS_SUPPORTS_64BIT_KERNEL
914 select ARCH_PHYS_ADDR_T_64BIT
915 select SYS_SUPPORTS_BIG_ENDIAN
916 select SYS_SUPPORTS_HIGHMEM
918 select NR_CPUS_DEFAULT_32
922 select ZONE_DMA32 if 64BIT
924 select SYS_HAS_EARLY_PRINTK
925 select SYS_SUPPORTS_ZBOOT
926 select SYS_SUPPORTS_ZBOOT_UART16550
928 Support for systems based on Netlogic XLR and XLS processors.
929 Say Y here if you have a XLR or XLS based board.
932 bool "Netlogic XLP based systems"
935 select SYS_HAS_CPU_XLP
936 select SYS_SUPPORTS_SMP
938 select SYS_SUPPORTS_32BIT_KERNEL
939 select SYS_SUPPORTS_64BIT_KERNEL
940 select ARCH_PHYS_ADDR_T_64BIT
941 select ARCH_REQUIRE_GPIOLIB
942 select SYS_SUPPORTS_BIG_ENDIAN
943 select SYS_SUPPORTS_LITTLE_ENDIAN
944 select SYS_SUPPORTS_HIGHMEM
946 select NR_CPUS_DEFAULT_32
950 select ZONE_DMA32 if 64BIT
952 select SYS_HAS_EARLY_PRINTK
954 select SYS_SUPPORTS_ZBOOT
955 select SYS_SUPPORTS_ZBOOT_UART16550
957 This board is based on Netlogic XLP Processor.
958 Say Y here if you have a XLP based board.
961 bool "Para-Virtualized guest system"
965 select SYS_SUPPORTS_64BIT_KERNEL
966 select SYS_SUPPORTS_32BIT_KERNEL
967 select SYS_SUPPORTS_BIG_ENDIAN
968 select SYS_SUPPORTS_SMP
969 select NR_CPUS_DEFAULT_4
970 select SYS_HAS_EARLY_PRINTK
971 select SYS_HAS_CPU_MIPS32_R2
972 select SYS_HAS_CPU_MIPS64_R2
973 select SYS_HAS_CPU_CAVIUM_OCTEON
977 This option supports guest running under ????
981 source "arch/mips/alchemy/Kconfig"
982 source "arch/mips/ath25/Kconfig"
983 source "arch/mips/ath79/Kconfig"
984 source "arch/mips/bcm47xx/Kconfig"
985 source "arch/mips/bcm63xx/Kconfig"
986 source "arch/mips/bmips/Kconfig"
987 source "arch/mips/jazz/Kconfig"
988 source "arch/mips/jz4740/Kconfig"
989 source "arch/mips/lantiq/Kconfig"
990 source "arch/mips/lasat/Kconfig"
991 source "arch/mips/pic32/Kconfig"
992 source "arch/mips/pistachio/Kconfig"
993 source "arch/mips/pmcs-msp71xx/Kconfig"
994 source "arch/mips/ralink/Kconfig"
995 source "arch/mips/sgi-ip27/Kconfig"
996 source "arch/mips/sibyte/Kconfig"
997 source "arch/mips/txx9/Kconfig"
998 source "arch/mips/vr41xx/Kconfig"
999 source "arch/mips/cavium-octeon/Kconfig"
1000 source "arch/mips/loongson32/Kconfig"
1001 source "arch/mips/loongson64/Kconfig"
1002 source "arch/mips/netlogic/Kconfig"
1003 source "arch/mips/paravirt/Kconfig"
1004 source "arch/mips/xilfpga/Kconfig"
1008 config RWSEM_GENERIC_SPINLOCK
1012 config RWSEM_XCHGADD_ALGORITHM
1015 config ARCH_HAS_ILOG2_U32
1019 config ARCH_HAS_ILOG2_U64
1023 config GENERIC_HWEIGHT
1027 config GENERIC_CALIBRATE_DELAY
1031 config SCHED_OMIT_FRAME_POINTER
1036 # Select some configuration options automatically based on user selections.
1041 config ARCH_MAY_HAVE_PC_FDC
1077 config MIPS_CLOCK_VSYSCALL
1078 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1081 select ARCH_REQUIRE_GPIOLIB
1087 config ARCH_DMA_ADDR_T_64BIT
1088 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1090 config ARCH_SUPPORTS_UPROBES
1093 config DMA_MAYBE_COHERENT
1094 select DMA_NONCOHERENT
1100 config DMA_NONCOHERENT
1102 select NEED_DMA_MAP_STATE
1104 config NEED_DMA_MAP_STATE
1107 config SYS_HAS_EARLY_PRINTK
1111 bool "Support for hot-pluggable CPUs"
1112 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1114 Say Y here to allow turning CPUs off and on. CPUs can be
1115 controlled through /sys/devices/system/cpu.
1116 (Note: power management support will enable this option
1117 automatically on SMP systems. )
1118 Say N if you want to disable CPU hotplug.
1120 config SYS_SUPPORTS_HOTPLUG_CPU
1123 config MIPS_BONITO64
1138 config NO_IOPORT_MAP
1144 config GENERIC_ISA_DMA
1146 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1149 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1151 select GENERIC_ISA_DMA
1156 config HOLES_IN_ZONE
1160 # Endianness selection. Sufficiently obscure so many users don't know what to
1161 # answer,so we try hard to limit the available choices. Also the use of a
1162 # choice statement should be more obvious to the user.
1165 prompt "Endianness selection"
1167 Some MIPS machines can be configured for either little or big endian
1168 byte order. These modes require different kernels and a different
1169 Linux distribution. In general there is one preferred byteorder for a
1170 particular system but some systems are just as commonly used in the
1171 one or the other endianness.
1173 config CPU_BIG_ENDIAN
1175 depends on SYS_SUPPORTS_BIG_ENDIAN
1177 config CPU_LITTLE_ENDIAN
1178 bool "Little endian"
1179 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1186 config SYS_SUPPORTS_APM_EMULATION
1189 config SYS_SUPPORTS_BIG_ENDIAN
1192 config SYS_SUPPORTS_LITTLE_ENDIAN
1195 config SYS_SUPPORTS_HUGETLBFS
1197 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1200 config MIPS_HUGE_TLB_SUPPORT
1201 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1218 config PCI_GT64XXX_PCI0
1221 config NO_EXCEPT_FILL
1228 select DMA_NONCOHERENT
1230 select SWAP_IO_SPACE
1231 select SYS_HAS_CPU_R5500
1232 select SYS_SUPPORTS_32BIT_KERNEL
1233 select SYS_SUPPORTS_64BIT_KERNEL
1234 select SYS_SUPPORTS_BIG_ENDIAN
1241 select DMA_NONCOHERENT
1242 select SYS_HAS_CPU_MIPS32_R2
1243 select SYS_SUPPORTS_32BIT_KERNEL
1244 select SYS_SUPPORTS_LITTLE_ENDIAN
1245 select SYS_SUPPORTS_BIG_ENDIAN
1246 select SYS_SUPPORTS_MIPS16
1247 select CPU_MIPSR2_IRQ_VI
1256 config SWAP_IO_SPACE
1259 config SGI_HAS_INDYDOG
1271 config SGI_HAS_ZILOG
1274 config SGI_HAS_I8042
1277 config DEFAULT_SGI_PARTITION
1289 config MIPS_L1_CACHE_SHIFT_4
1292 config MIPS_L1_CACHE_SHIFT_5
1295 config MIPS_L1_CACHE_SHIFT_6
1298 config MIPS_L1_CACHE_SHIFT_7
1301 config MIPS_L1_CACHE_SHIFT
1303 default "7" if MIPS_L1_CACHE_SHIFT_7
1304 default "6" if MIPS_L1_CACHE_SHIFT_6
1305 default "5" if MIPS_L1_CACHE_SHIFT_5
1306 default "4" if MIPS_L1_CACHE_SHIFT_4
1309 config HAVE_STD_PC_SERIAL_PORT
1313 bool "ARC console support"
1314 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1318 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1323 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1332 menu "CPU selection"
1338 config CPU_LOONGSON3
1339 bool "Loongson 3 CPU"
1340 depends on SYS_HAS_CPU_LOONGSON3
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HIGHMEM
1343 select CPU_SUPPORTS_HUGEPAGES
1344 select WEAK_ORDERING
1345 select WEAK_REORDERING_BEYOND_LLSC
1346 select ARCH_REQUIRE_GPIOLIB
1348 The Loongson 3 processor implements the MIPS64R2 instruction
1349 set with many extensions.
1351 config CPU_LOONGSON2E
1353 depends on SYS_HAS_CPU_LOONGSON2E
1354 select CPU_LOONGSON2
1356 The Loongson 2E processor implements the MIPS III instruction set
1357 with many extensions.
1359 It has an internal FPGA northbridge, which is compatible to
1362 config CPU_LOONGSON2F
1364 depends on SYS_HAS_CPU_LOONGSON2F
1365 select CPU_LOONGSON2
1366 select ARCH_REQUIRE_GPIOLIB
1368 The Loongson 2F processor implements the MIPS III instruction set
1369 with many extensions.
1371 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1372 have a similar programming interface with FPGA northbridge used in
1375 config CPU_LOONGSON1B
1377 depends on SYS_HAS_CPU_LOONGSON1B
1378 select CPU_LOONGSON1
1380 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1381 release 2 instruction set.
1383 config CPU_MIPS32_R1
1384 bool "MIPS32 Release 1"
1385 depends on SYS_HAS_CPU_MIPS32_R1
1386 select CPU_HAS_PREFETCH
1387 select CPU_SUPPORTS_32BIT_KERNEL
1388 select CPU_SUPPORTS_HIGHMEM
1390 Choose this option to build a kernel for release 1 or later of the
1391 MIPS32 architecture. Most modern embedded systems with a 32-bit
1392 MIPS processor are based on a MIPS32 processor. If you know the
1393 specific type of processor in your system, choose those that one
1394 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1395 Release 2 of the MIPS32 architecture is available since several
1396 years so chances are you even have a MIPS32 Release 2 processor
1397 in which case you should choose CPU_MIPS32_R2 instead for better
1400 config CPU_MIPS32_R2
1401 bool "MIPS32 Release 2"
1402 depends on SYS_HAS_CPU_MIPS32_R2
1403 select CPU_HAS_PREFETCH
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select CPU_SUPPORTS_HIGHMEM
1406 select CPU_SUPPORTS_MSA
1409 Choose this option to build a kernel for release 2 or later of the
1410 MIPS32 architecture. Most modern embedded systems with a 32-bit
1411 MIPS processor are based on a MIPS32 processor. If you know the
1412 specific type of processor in your system, choose those that one
1413 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1415 config CPU_MIPS32_R6
1416 bool "MIPS32 Release 6"
1417 depends on SYS_HAS_CPU_MIPS32_R6
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select CPU_SUPPORTS_MSA
1424 select MIPS_O32_FP64_SUPPORT
1426 Choose this option to build a kernel for release 6 or later of the
1427 MIPS32 architecture. New MIPS processors, starting with the Warrior
1428 family, are based on a MIPS32r6 processor. If you own an older
1429 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1431 config CPU_MIPS64_R1
1432 bool "MIPS64 Release 1"
1433 depends on SYS_HAS_CPU_MIPS64_R1
1434 select CPU_HAS_PREFETCH
1435 select CPU_SUPPORTS_32BIT_KERNEL
1436 select CPU_SUPPORTS_64BIT_KERNEL
1437 select CPU_SUPPORTS_HIGHMEM
1438 select CPU_SUPPORTS_HUGEPAGES
1440 Choose this option to build a kernel for release 1 or later of the
1441 MIPS64 architecture. Many modern embedded systems with a 64-bit
1442 MIPS processor are based on a MIPS64 processor. If you know the
1443 specific type of processor in your system, choose those that one
1444 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1445 Release 2 of the MIPS64 architecture is available since several
1446 years so chances are you even have a MIPS64 Release 2 processor
1447 in which case you should choose CPU_MIPS64_R2 instead for better
1450 config CPU_MIPS64_R2
1451 bool "MIPS64 Release 2"
1452 depends on SYS_HAS_CPU_MIPS64_R2
1453 select CPU_HAS_PREFETCH
1454 select CPU_SUPPORTS_32BIT_KERNEL
1455 select CPU_SUPPORTS_64BIT_KERNEL
1456 select CPU_SUPPORTS_HIGHMEM
1457 select CPU_SUPPORTS_HUGEPAGES
1458 select CPU_SUPPORTS_MSA
1460 Choose this option to build a kernel for release 2 or later of the
1461 MIPS64 architecture. Many modern embedded systems with a 64-bit
1462 MIPS processor are based on a MIPS64 processor. If you know the
1463 specific type of processor in your system, choose those that one
1464 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1466 config CPU_MIPS64_R6
1467 bool "MIPS64 Release 6"
1468 depends on SYS_HAS_CPU_MIPS64_R6
1469 select CPU_HAS_PREFETCH
1470 select CPU_SUPPORTS_32BIT_KERNEL
1471 select CPU_SUPPORTS_64BIT_KERNEL
1472 select CPU_SUPPORTS_HIGHMEM
1473 select CPU_SUPPORTS_MSA
1475 select MIPS_O32_FP64_SUPPORT if MIPS32_O32
1477 Choose this option to build a kernel for release 6 or later of the
1478 MIPS64 architecture. New MIPS processors, starting with the Warrior
1479 family, are based on a MIPS64r6 processor. If you own an older
1480 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1484 depends on SYS_HAS_CPU_R3000
1486 select CPU_SUPPORTS_32BIT_KERNEL
1487 select CPU_SUPPORTS_HIGHMEM
1489 Please make sure to pick the right CPU type. Linux/MIPS is not
1490 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1491 *not* work on R4000 machines and vice versa. However, since most
1492 of the supported machines have an R4000 (or similar) CPU, R4x00
1493 might be a safe bet. If the resulting kernel does not work,
1494 try to recompile with R3000.
1498 depends on SYS_HAS_CPU_TX39XX
1499 select CPU_SUPPORTS_32BIT_KERNEL
1503 depends on SYS_HAS_CPU_VR41XX
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select CPU_SUPPORTS_64BIT_KERNEL
1507 The options selects support for the NEC VR4100 series of processors.
1508 Only choose this option if you have one of these processors as a
1509 kernel built with this option will not run on any other type of
1510 processor or vice versa.
1514 depends on SYS_HAS_CPU_R4300
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_64BIT_KERNEL
1518 MIPS Technologies R4300-series processors.
1522 depends on SYS_HAS_CPU_R4X00
1523 select CPU_SUPPORTS_32BIT_KERNEL
1524 select CPU_SUPPORTS_64BIT_KERNEL
1525 select CPU_SUPPORTS_HUGEPAGES
1527 MIPS Technologies R4000-series processors other than 4300, including
1528 the R4000, R4400, R4600, and 4700.
1532 depends on SYS_HAS_CPU_TX49XX
1533 select CPU_HAS_PREFETCH
1534 select CPU_SUPPORTS_32BIT_KERNEL
1535 select CPU_SUPPORTS_64BIT_KERNEL
1536 select CPU_SUPPORTS_HUGEPAGES
1540 depends on SYS_HAS_CPU_R5000
1541 select CPU_SUPPORTS_32BIT_KERNEL
1542 select CPU_SUPPORTS_64BIT_KERNEL
1543 select CPU_SUPPORTS_HUGEPAGES
1545 MIPS Technologies R5000-series processors other than the Nevada.
1549 depends on SYS_HAS_CPU_R5432
1550 select CPU_SUPPORTS_32BIT_KERNEL
1551 select CPU_SUPPORTS_64BIT_KERNEL
1552 select CPU_SUPPORTS_HUGEPAGES
1556 depends on SYS_HAS_CPU_R5500
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_64BIT_KERNEL
1559 select CPU_SUPPORTS_HUGEPAGES
1561 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1566 depends on SYS_HAS_CPU_R6000
1567 select CPU_SUPPORTS_32BIT_KERNEL
1569 MIPS Technologies R6000 and R6000A series processors. Note these
1570 processors are extremely rare and the support for them is incomplete.
1574 depends on SYS_HAS_CPU_NEVADA
1575 select CPU_SUPPORTS_32BIT_KERNEL
1576 select CPU_SUPPORTS_64BIT_KERNEL
1577 select CPU_SUPPORTS_HUGEPAGES
1579 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1583 depends on SYS_HAS_CPU_R8000
1584 select CPU_HAS_PREFETCH
1585 select CPU_SUPPORTS_64BIT_KERNEL
1587 MIPS Technologies R8000 processors. Note these processors are
1588 uncommon and the support for them is incomplete.
1592 depends on SYS_HAS_CPU_R10000
1593 select CPU_HAS_PREFETCH
1594 select CPU_SUPPORTS_32BIT_KERNEL
1595 select CPU_SUPPORTS_64BIT_KERNEL
1596 select CPU_SUPPORTS_HIGHMEM
1597 select CPU_SUPPORTS_HUGEPAGES
1599 MIPS Technologies R10000-series processors.
1603 depends on SYS_HAS_CPU_RM7000
1604 select CPU_HAS_PREFETCH
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_SUPPORTS_HIGHMEM
1608 select CPU_SUPPORTS_HUGEPAGES
1612 depends on SYS_HAS_CPU_SB1
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_64BIT_KERNEL
1615 select CPU_SUPPORTS_HIGHMEM
1616 select CPU_SUPPORTS_HUGEPAGES
1617 select WEAK_ORDERING
1619 config CPU_CAVIUM_OCTEON
1620 bool "Cavium Octeon processor"
1621 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1622 select CPU_HAS_PREFETCH
1623 select CPU_SUPPORTS_64BIT_KERNEL
1624 select WEAK_ORDERING
1625 select CPU_SUPPORTS_HIGHMEM
1626 select CPU_SUPPORTS_HUGEPAGES
1627 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1628 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1629 select MIPS_L1_CACHE_SHIFT_7
1631 The Cavium Octeon processor is a highly integrated chip containing
1632 many ethernet hardware widgets for networking tasks. The processor
1633 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1634 Full details can be found at http://www.caviumnetworks.com.
1637 bool "Broadcom BMIPS"
1638 depends on SYS_HAS_CPU_BMIPS
1640 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1641 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1642 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1643 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1644 select CPU_SUPPORTS_32BIT_KERNEL
1645 select DMA_NONCOHERENT
1647 select SWAP_IO_SPACE
1648 select WEAK_ORDERING
1649 select CPU_SUPPORTS_HIGHMEM
1650 select CPU_HAS_PREFETCH
1652 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1655 bool "Netlogic XLR SoC"
1656 depends on SYS_HAS_CPU_XLR
1657 select CPU_SUPPORTS_32BIT_KERNEL
1658 select CPU_SUPPORTS_64BIT_KERNEL
1659 select CPU_SUPPORTS_HIGHMEM
1660 select CPU_SUPPORTS_HUGEPAGES
1661 select WEAK_ORDERING
1662 select WEAK_REORDERING_BEYOND_LLSC
1664 Netlogic Microsystems XLR/XLS processors.
1667 bool "Netlogic XLP SoC"
1668 depends on SYS_HAS_CPU_XLP
1669 select CPU_SUPPORTS_32BIT_KERNEL
1670 select CPU_SUPPORTS_64BIT_KERNEL
1671 select CPU_SUPPORTS_HIGHMEM
1672 select WEAK_ORDERING
1673 select WEAK_REORDERING_BEYOND_LLSC
1674 select CPU_HAS_PREFETCH
1676 select CPU_SUPPORTS_HUGEPAGES
1678 Netlogic Microsystems XLP processors.
1681 config CPU_MIPS32_3_5_FEATURES
1682 bool "MIPS32 Release 3.5 Features"
1683 depends on SYS_HAS_CPU_MIPS32_R3_5
1684 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1686 Choose this option to build a kernel for release 2 or later of the
1687 MIPS32 architecture including features from the 3.5 release such as
1688 support for Enhanced Virtual Addressing (EVA).
1690 config CPU_MIPS32_3_5_EVA
1691 bool "Enhanced Virtual Addressing (EVA)"
1692 depends on CPU_MIPS32_3_5_FEATURES
1696 Choose this option if you want to enable the Enhanced Virtual
1697 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1698 One of its primary benefits is an increase in the maximum size
1699 of lowmem (up to 3GB). If unsure, say 'N' here.
1701 config CPU_MIPS32_R5_FEATURES
1702 bool "MIPS32 Release 5 Features"
1703 depends on SYS_HAS_CPU_MIPS32_R5
1704 depends on CPU_MIPS32_R2
1706 Choose this option to build a kernel for release 2 or later of the
1707 MIPS32 architecture including features from release 5 such as
1708 support for Extended Physical Addressing (XPA).
1710 config CPU_MIPS32_R5_XPA
1711 bool "Extended Physical Addressing (XPA)"
1712 depends on CPU_MIPS32_R5_FEATURES
1714 depends on !PAGE_SIZE_4KB
1715 depends on SYS_SUPPORTS_HIGHMEM
1718 select ARCH_PHYS_ADDR_T_64BIT
1721 Choose this option if you want to enable the Extended Physical
1722 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1723 benefit is to increase physical addressing equal to or greater
1724 than 40 bits. Note that this has the side effect of turning on
1725 64-bit addressing which in turn makes the PTEs 64-bit in size.
1726 If unsure, say 'N' here.
1729 config CPU_NOP_WORKAROUNDS
1732 config CPU_JUMP_WORKAROUNDS
1735 config CPU_LOONGSON2F_WORKAROUNDS
1736 bool "Loongson 2F Workarounds"
1738 select CPU_NOP_WORKAROUNDS
1739 select CPU_JUMP_WORKAROUNDS
1741 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1742 require workarounds. Without workarounds the system may hang
1743 unexpectedly. For more information please refer to the gas
1744 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1746 Loongson 2F03 and later have fixed these issues and no workarounds
1747 are needed. The workarounds have no significant side effect on them
1748 but may decrease the performance of the system so this option should
1749 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1752 If unsure, please say Y.
1753 endif # CPU_LOONGSON2F
1755 config SYS_SUPPORTS_ZBOOT
1757 select HAVE_KERNEL_GZIP
1758 select HAVE_KERNEL_BZIP2
1759 select HAVE_KERNEL_LZ4
1760 select HAVE_KERNEL_LZMA
1761 select HAVE_KERNEL_LZO
1762 select HAVE_KERNEL_XZ
1764 config SYS_SUPPORTS_ZBOOT_UART16550
1766 select SYS_SUPPORTS_ZBOOT
1768 config CPU_LOONGSON2
1770 select CPU_SUPPORTS_32BIT_KERNEL
1771 select CPU_SUPPORTS_64BIT_KERNEL
1772 select CPU_SUPPORTS_HIGHMEM
1773 select CPU_SUPPORTS_HUGEPAGES
1775 config CPU_LOONGSON1
1779 select CPU_HAS_PREFETCH
1780 select CPU_SUPPORTS_32BIT_KERNEL
1781 select CPU_SUPPORTS_HIGHMEM
1782 select CPU_SUPPORTS_CPUFREQ
1784 config CPU_BMIPS32_3300
1785 select SMP_UP if SMP
1788 config CPU_BMIPS4350
1790 select SYS_SUPPORTS_SMP
1791 select SYS_SUPPORTS_HOTPLUG_CPU
1793 config CPU_BMIPS4380
1795 select MIPS_L1_CACHE_SHIFT_6
1796 select SYS_SUPPORTS_SMP
1797 select SYS_SUPPORTS_HOTPLUG_CPU
1799 config CPU_BMIPS5000
1801 select MIPS_CPU_SCACHE
1802 select MIPS_L1_CACHE_SHIFT_7
1803 select SYS_SUPPORTS_SMP
1804 select SYS_SUPPORTS_HOTPLUG_CPU
1806 config SYS_HAS_CPU_LOONGSON3
1808 select CPU_SUPPORTS_CPUFREQ
1810 config SYS_HAS_CPU_LOONGSON2E
1813 config SYS_HAS_CPU_LOONGSON2F
1815 select CPU_SUPPORTS_CPUFREQ
1816 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1817 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1819 config SYS_HAS_CPU_LOONGSON1B
1822 config SYS_HAS_CPU_MIPS32_R1
1825 config SYS_HAS_CPU_MIPS32_R2
1828 config SYS_HAS_CPU_MIPS32_R3_5
1831 config SYS_HAS_CPU_MIPS32_R5
1834 config SYS_HAS_CPU_MIPS32_R6
1837 config SYS_HAS_CPU_MIPS64_R1
1840 config SYS_HAS_CPU_MIPS64_R2
1843 config SYS_HAS_CPU_MIPS64_R6
1846 config SYS_HAS_CPU_R3000
1849 config SYS_HAS_CPU_TX39XX
1852 config SYS_HAS_CPU_VR41XX
1855 config SYS_HAS_CPU_R4300
1858 config SYS_HAS_CPU_R4X00
1861 config SYS_HAS_CPU_TX49XX
1864 config SYS_HAS_CPU_R5000
1867 config SYS_HAS_CPU_R5432
1870 config SYS_HAS_CPU_R5500
1873 config SYS_HAS_CPU_R6000
1876 config SYS_HAS_CPU_NEVADA
1879 config SYS_HAS_CPU_R8000
1882 config SYS_HAS_CPU_R10000
1885 config SYS_HAS_CPU_RM7000
1888 config SYS_HAS_CPU_SB1
1891 config SYS_HAS_CPU_CAVIUM_OCTEON
1894 config SYS_HAS_CPU_BMIPS
1897 config SYS_HAS_CPU_BMIPS32_3300
1899 select SYS_HAS_CPU_BMIPS
1901 config SYS_HAS_CPU_BMIPS4350
1903 select SYS_HAS_CPU_BMIPS
1905 config SYS_HAS_CPU_BMIPS4380
1907 select SYS_HAS_CPU_BMIPS
1909 config SYS_HAS_CPU_BMIPS5000
1911 select SYS_HAS_CPU_BMIPS
1913 config SYS_HAS_CPU_XLR
1916 config SYS_HAS_CPU_XLP
1919 config MIPS_MALTA_PM
1920 depends on MIPS_MALTA
1926 # CPU may reorder R->R, R->W, W->R, W->W
1927 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1929 config WEAK_ORDERING
1933 # CPU may reorder reads and writes beyond LL/SC
1934 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1936 config WEAK_REORDERING_BEYOND_LLSC
1941 # These two indicate any level of the MIPS32 and MIPS64 architecture
1945 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1949 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1952 # These two indicate the revision of the architecture, either Release 1 or Release 2
1956 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1960 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1965 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1974 config SYS_SUPPORTS_32BIT_KERNEL
1976 config SYS_SUPPORTS_64BIT_KERNEL
1978 config CPU_SUPPORTS_32BIT_KERNEL
1980 config CPU_SUPPORTS_64BIT_KERNEL
1982 config CPU_SUPPORTS_CPUFREQ
1984 config CPU_SUPPORTS_ADDRWINCFG
1986 config CPU_SUPPORTS_HUGEPAGES
1988 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1990 config MIPS_PGD_C0_CONTEXT
1992 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1995 # Set to y for ptrace access to watch registers.
1997 config HARDWARE_WATCHPOINTS
1999 default y if CPU_MIPSR1 || CPU_MIPSR2
2004 prompt "Kernel code model"
2006 You should only select this option if you have a workload that
2007 actually benefits from 64-bit processing or if your machine has
2008 large memory. You will only be presented a single option in this
2009 menu if your system does not support both 32-bit and 64-bit kernels.
2012 bool "32-bit kernel"
2013 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2016 Select this option if you want to build a 32-bit kernel.
2019 bool "64-bit kernel"
2020 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2022 Select this option if you want to build a 64-bit kernel.
2027 bool "KVM Guest Kernel"
2028 depends on BROKEN_ON_SMP
2030 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
2032 config KVM_GUEST_TIMER_FREQ
2033 int "Count/Compare Timer Frequency (MHz)"
2034 depends on KVM_GUEST
2037 Set this to non-zero if building a guest kernel for KVM to skip RTC
2038 emulation when determining guest CPU Frequency. Instead, the guest's
2039 timer frequency is specified directly.
2042 prompt "Kernel page size"
2043 default PAGE_SIZE_4KB
2045 config PAGE_SIZE_4KB
2047 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2049 This option select the standard 4kB Linux page size. On some
2050 R3000-family processors this is the only available page size. Using
2051 4kB page size will minimize memory consumption and is therefore
2052 recommended for low memory systems.
2054 config PAGE_SIZE_8KB
2056 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2058 Using 8kB page size will result in higher performance kernel at
2059 the price of higher memory consumption. This option is available
2060 only on R8000 and cnMIPS processors. Note that you will need a
2061 suitable Linux distribution to support this.
2063 config PAGE_SIZE_16KB
2065 depends on !CPU_R3000 && !CPU_TX39XX
2067 Using 16kB page size will result in higher performance kernel at
2068 the price of higher memory consumption. This option is available on
2069 all non-R3000 family processors. Note that you will need a suitable
2070 Linux distribution to support this.
2072 config PAGE_SIZE_32KB
2074 depends on CPU_CAVIUM_OCTEON
2076 Using 32kB page size will result in higher performance kernel at
2077 the price of higher memory consumption. This option is available
2078 only on cnMIPS cores. Note that you will need a suitable Linux
2079 distribution to support this.
2081 config PAGE_SIZE_64KB
2083 depends on !CPU_R3000 && !CPU_TX39XX
2085 Using 64kB page size will result in higher performance kernel at
2086 the price of higher memory consumption. This option is available on
2087 all non-R3000 family processor. Not that at the time of this
2088 writing this option is still high experimental.
2092 config FORCE_MAX_ZONEORDER
2093 int "Maximum zone order"
2094 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2095 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2096 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2097 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2098 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2099 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2103 The kernel memory allocator divides physically contiguous memory
2104 blocks into "zones", where each zone is a power of two number of
2105 pages. This option selects the largest power of two that the kernel
2106 keeps in the memory allocator. If you need to allocate very large
2107 blocks of physically contiguous memory, then you may need to
2108 increase this value.
2110 This config option is actually maximum order plus one. For example,
2111 a value of 11 means that the largest free memory block is 2^10 pages.
2113 The page size is not necessarily 4KB. Keep this in mind
2114 when choosing a value for this option.
2119 config IP22_CPU_SCACHE
2124 # Support for a MIPS32 / MIPS64 style S-caches
2126 config MIPS_CPU_SCACHE
2130 config R5000_CPU_SCACHE
2134 config RM7000_CPU_SCACHE
2138 config SIBYTE_DMA_PAGEOPS
2139 bool "Use DMA to clear/copy pages"
2142 Instead of using the CPU to zero and copy pages, use a Data Mover
2143 channel. These DMA channels are otherwise unused by the standard
2144 SiByte Linux port. Seems to give a small performance benefit.
2146 config CPU_HAS_PREFETCH
2149 config CPU_GENERIC_DUMP_TLB
2151 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2155 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2157 config CPU_R4K_CACHE_TLB
2159 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2162 bool "MIPS MT SMP support (1 TC on each available VPE)"
2163 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2164 select CPU_MIPSR2_IRQ_VI
2165 select CPU_MIPSR2_IRQ_EI
2171 select SYS_SUPPORTS_SMP
2172 select SYS_SUPPORTS_SCHED_SMT
2173 select MIPS_PERF_SHARED_TC_COUNTERS
2175 This is a kernel model which is known as SMVP. This is supported
2176 on cores with the MT ASE and uses the available VPEs to implement
2177 virtual processors which supports SMP. This is equivalent to the
2178 Intel Hyperthreading feature. For further information go to
2179 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2185 bool "SMT (multithreading) scheduler support"
2186 depends on SYS_SUPPORTS_SCHED_SMT
2189 SMT scheduler support improves the CPU scheduler's decision making
2190 when dealing with MIPS MT enabled cores at a cost of slightly
2191 increased overhead in some places. If unsure say N here.
2193 config SYS_SUPPORTS_SCHED_SMT
2196 config SYS_SUPPORTS_MULTITHREADING
2199 config MIPS_MT_FPAFF
2200 bool "Dynamic FPU affinity for FP-intensive threads"
2202 depends on MIPS_MT_SMP
2204 config MIPSR2_TO_R6_EMULATOR
2205 bool "MIPS R2-to-R6 emulator"
2206 depends on CPU_MIPSR6 && !SMP
2209 Choose this option if you want to run non-R6 MIPS userland code.
2210 Even if you say 'Y' here, the emulator will still be disabled by
2211 default. You can enable it using the 'mipsr2emu' kernel option.
2212 The only reason this is a build-time option is to save ~14K from the
2214 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2215 depends on SMP && CPU_MIPSR6
2217 config MIPS_VPE_LOADER
2218 bool "VPE loader support."
2219 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2220 select CPU_MIPSR2_IRQ_VI
2221 select CPU_MIPSR2_IRQ_EI
2224 Includes a loader for loading an elf relocatable object
2225 onto another VPE and running it.
2227 config MIPS_VPE_LOADER_CMP
2230 depends on MIPS_VPE_LOADER && MIPS_CMP
2232 config MIPS_VPE_LOADER_MT
2235 depends on MIPS_VPE_LOADER && !MIPS_CMP
2237 config MIPS_VPE_LOADER_TOM
2238 bool "Load VPE program into memory hidden from linux"
2239 depends on MIPS_VPE_LOADER
2242 The loader can use memory that is present but has been hidden from
2243 Linux using the kernel command line option "mem=xxMB". It's up to
2244 you to ensure the amount you put in the option and the space your
2245 program requires is less or equal to the amount physically present.
2247 config MIPS_VPE_APSP_API
2248 bool "Enable support for AP/SP API (RTLX)"
2249 depends on MIPS_VPE_LOADER
2252 config MIPS_VPE_APSP_API_CMP
2255 depends on MIPS_VPE_APSP_API && MIPS_CMP
2257 config MIPS_VPE_APSP_API_MT
2260 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2263 bool "MIPS CMP framework support (DEPRECATED)"
2264 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2268 select SYS_SUPPORTS_SMP
2269 select WEAK_ORDERING
2272 Select this if you are using a bootloader which implements the "CMP
2273 framework" protocol (ie. YAMON) and want your kernel to make use of
2274 its ability to start secondary CPUs.
2276 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2280 bool "MIPS Coherent Processing System support"
2281 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2284 select MIPS_CPS_PM if HOTPLUG_CPU
2287 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2288 select SYS_SUPPORTS_HOTPLUG_CPU
2289 select SYS_SUPPORTS_SMP
2290 select WEAK_ORDERING
2292 Select this if you wish to run an SMP kernel across multiple cores
2293 within a MIPS Coherent Processing System. When this option is
2294 enabled the kernel will probe for other cores and boot them with
2295 no external assistance. It is safe to enable this when hardware
2296 support is unavailable.
2312 config SB1_PASS_2_WORKAROUNDS
2314 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2317 config SB1_PASS_2_1_WORKAROUNDS
2319 depends on CPU_SB1 && CPU_SB1_PASS_2
2323 config ARCH_PHYS_ADDR_T_64BIT
2327 prompt "SmartMIPS or microMIPS ASE support"
2329 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2332 Select this if you want neither microMIPS nor SmartMIPS support
2334 config CPU_HAS_SMARTMIPS
2335 depends on SYS_SUPPORTS_SMARTMIPS
2338 SmartMIPS is a extension of the MIPS32 architecture aimed at
2339 increased security at both hardware and software level for
2340 smartcards. Enabling this option will allow proper use of the
2341 SmartMIPS instructions by Linux applications. However a kernel with
2342 this option will not work on a MIPS core without SmartMIPS core. If
2343 you don't know you probably don't have SmartMIPS and should say N
2346 config CPU_MICROMIPS
2347 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2350 When this option is enabled the kernel will be built using the
2356 bool "Support for the MIPS SIMD Architecture"
2357 depends on CPU_SUPPORTS_MSA
2358 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2360 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2361 and a set of SIMD instructions to operate on them. When this option
2362 is enabled the kernel will support allocating & switching MSA
2363 vector register contexts. If you know that your kernel will only be
2364 running on CPUs which do not support MSA or that your userland will
2365 not be making use of it then you may wish to say N here to reduce
2366 the size & complexity of your kernel.
2377 # Vectored interrupt mode is an R2 feature
2379 config CPU_MIPSR2_IRQ_VI
2383 # Extended interrupt mode is an R2 feature
2385 config CPU_MIPSR2_IRQ_EI
2390 depends on !CPU_R3000
2396 config CPU_DADDI_WORKAROUNDS
2399 config CPU_R4000_WORKAROUNDS
2401 select CPU_R4400_WORKAROUNDS
2403 config CPU_R4400_WORKAROUNDS
2407 # - Highmem only makes sense for the 32-bit kernel.
2408 # - The current highmem code will only work properly on physically indexed
2409 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2410 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2411 # moment we protect the user and offer the highmem option only on machines
2412 # where it's known to be safe. This will not offer highmem on a few systems
2413 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2414 # indexed CPUs but we're playing safe.
2415 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2416 # know they might have memory configurations that could make use of highmem
2420 bool "High Memory Support"
2421 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2423 config CPU_SUPPORTS_HIGHMEM
2426 config SYS_SUPPORTS_HIGHMEM
2429 config SYS_SUPPORTS_SMARTMIPS
2432 config SYS_SUPPORTS_MICROMIPS
2435 config SYS_SUPPORTS_MIPS16
2438 This option must be set if a kernel might be executed on a MIPS16-
2439 enabled CPU even if MIPS16 is not actually being used. In other
2440 words, it makes the kernel MIPS16-tolerant.
2442 config CPU_SUPPORTS_MSA
2445 config ARCH_FLATMEM_ENABLE
2447 depends on !NUMA && !CPU_LOONGSON2
2449 config ARCH_DISCONTIGMEM_ENABLE
2451 default y if SGI_IP27
2453 Say Y to support efficient handling of discontiguous physical memory,
2454 for architectures which are either NUMA (Non-Uniform Memory Access)
2455 or have huge holes in the physical address space for other reasons.
2456 See <file:Documentation/vm/numa> for more.
2458 config ARCH_SPARSEMEM_ENABLE
2460 select SPARSEMEM_STATIC
2464 depends on SYS_SUPPORTS_NUMA
2466 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2467 Access). This option improves performance on systems with more
2468 than two nodes; on two node systems it is generally better to
2469 leave it disabled; on single node systems disable this option
2472 config SYS_SUPPORTS_NUMA
2478 depends on NEED_MULTIPLE_NODES
2480 config HW_PERF_EVENTS
2481 bool "Enable hardware performance counter support for perf events"
2482 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2485 Enable hardware performance counter support for perf events. If
2486 disabled, perf events will use software events only.
2491 bool "Multi-Processing support"
2492 depends on SYS_SUPPORTS_SMP
2494 This enables support for systems with more than one CPU. If you have
2495 a system with only one CPU, say N. If you have a system with more
2496 than one CPU, say Y.
2498 If you say N here, the kernel will run on uni- and multiprocessor
2499 machines, but will use only one CPU of a multiprocessor machine. If
2500 you say Y here, the kernel will run on many, but not all,
2501 uniprocessor machines. On a uniprocessor machine, the kernel
2502 will run faster if you say N here.
2504 People using multiprocessor machines who say Y here should also say
2505 Y to "Enhanced Real Time Clock Support", below.
2507 See also the SMP-HOWTO available at
2508 <http://www.tldp.org/docs.html#howto>.
2510 If you don't know what to do here, say N.
2515 config SYS_SUPPORTS_MIPS_CMP
2518 config SYS_SUPPORTS_MIPS_CPS
2521 config SYS_SUPPORTS_SMP
2524 config NR_CPUS_DEFAULT_4
2527 config NR_CPUS_DEFAULT_8
2530 config NR_CPUS_DEFAULT_16
2533 config NR_CPUS_DEFAULT_32
2536 config NR_CPUS_DEFAULT_64
2540 int "Maximum number of CPUs (2-256)"
2543 default "4" if NR_CPUS_DEFAULT_4
2544 default "8" if NR_CPUS_DEFAULT_8
2545 default "16" if NR_CPUS_DEFAULT_16
2546 default "32" if NR_CPUS_DEFAULT_32
2547 default "64" if NR_CPUS_DEFAULT_64
2549 This allows you to specify the maximum number of CPUs which this
2550 kernel will support. The maximum supported value is 32 for 32-bit
2551 kernel and 64 for 64-bit kernels; the minimum value which makes
2552 sense is 1 for Qemu (useful only for kernel debugging purposes)
2553 and 2 for all others.
2555 This is purely to save memory - each supported CPU adds
2556 approximately eight kilobytes to the kernel image. For best
2557 performance should round up your number of processors to the next
2560 config MIPS_PERF_SHARED_TC_COUNTERS
2564 # Timer Interrupt Frequency Configuration
2568 prompt "Timer frequency"
2571 Allows the configuration of the timer frequency.
2574 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2577 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2580 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2583 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2586 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2589 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2592 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2595 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2599 config SYS_SUPPORTS_24HZ
2602 config SYS_SUPPORTS_48HZ
2605 config SYS_SUPPORTS_100HZ
2608 config SYS_SUPPORTS_128HZ
2611 config SYS_SUPPORTS_250HZ
2614 config SYS_SUPPORTS_256HZ
2617 config SYS_SUPPORTS_1000HZ
2620 config SYS_SUPPORTS_1024HZ
2623 config SYS_SUPPORTS_ARBIT_HZ
2625 default y if !SYS_SUPPORTS_24HZ && \
2626 !SYS_SUPPORTS_48HZ && \
2627 !SYS_SUPPORTS_100HZ && \
2628 !SYS_SUPPORTS_128HZ && \
2629 !SYS_SUPPORTS_250HZ && \
2630 !SYS_SUPPORTS_256HZ && \
2631 !SYS_SUPPORTS_1000HZ && \
2632 !SYS_SUPPORTS_1024HZ
2638 default 100 if HZ_100
2639 default 128 if HZ_128
2640 default 250 if HZ_250
2641 default 256 if HZ_256
2642 default 1000 if HZ_1000
2643 default 1024 if HZ_1024
2646 def_bool HIGH_RES_TIMERS
2648 source "kernel/Kconfig.preempt"
2651 bool "Kexec system call"
2654 kexec is a system call that implements the ability to shutdown your
2655 current kernel, and to start another kernel. It is like a reboot
2656 but it is independent of the system firmware. And like a reboot
2657 you can start any kernel with it, not just Linux.
2659 The name comes from the similarity to the exec system call.
2661 It is an ongoing process to be certain the hardware in a machine
2662 is properly shutdown, so do not be surprised if this code does not
2663 initially work for you. As of this writing the exact hardware
2664 interface is strongly in flux, so no good recommendation can be
2668 bool "Kernel crash dumps"
2670 Generate crash dump after being started by kexec.
2671 This should be normally only set in special crash dump kernels
2672 which are loaded in the main kernel with kexec-tools into
2673 a specially reserved region and then later executed after
2674 a crash by kdump/kexec. The crash dump kernel must be compiled
2675 to a memory address not used by the main kernel or firmware using
2678 config PHYSICAL_START
2679 hex "Physical address where the kernel is loaded"
2680 default "0xffffffff84000000" if 64BIT
2681 default "0x84000000" if 32BIT
2682 depends on CRASH_DUMP
2684 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2685 If you plan to use kernel for capturing the crash dump change
2686 this value to start of the reserved region (the "X" value as
2687 specified in the "crashkernel=YM@XM" command line boot parameter
2688 passed to the panic-ed kernel).
2691 bool "Enable seccomp to safely compute untrusted bytecode"
2695 This kernel feature is useful for number crunching applications
2696 that may need to compute untrusted bytecode during their
2697 execution. By using pipes or other transports made available to
2698 the process as file descriptors supporting the read/write
2699 syscalls, it's possible to isolate those applications in
2700 their own address space using seccomp. Once seccomp is
2701 enabled via /proc/<pid>/seccomp, it cannot be disabled
2702 and the task is only allowed to execute a few safe syscalls
2703 defined by each seccomp mode.
2705 If unsure, say Y. Only embedded should say N here.
2707 config MIPS_O32_FP64_SUPPORT
2708 bool "Support for O32 binaries using 64-bit FP"
2709 depends on 32BIT || MIPS32_O32
2711 When this is enabled, the kernel will support use of 64-bit floating
2712 point registers with binaries using the O32 ABI along with the
2713 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2714 32-bit MIPS systems this support is at the cost of increasing the
2715 size and complexity of the compiled FPU emulator. Thus if you are
2716 running a MIPS32 system and know that none of your userland binaries
2717 will require 64-bit floating point, you may wish to reduce the size
2718 of your kernel & potentially improve FP emulation performance by
2721 Although binutils currently supports use of this flag the details
2722 concerning its effect upon the O32 ABI in userland are still being
2723 worked on. In order to avoid userland becoming dependant upon current
2724 behaviour before the details have been finalised, this option should
2725 be considered experimental and only enabled by those working upon
2733 select OF_EARLY_FLATTREE
2740 prompt "Kernel appended dtb support" if USE_OF
2741 default MIPS_NO_APPENDED_DTB
2743 config MIPS_NO_APPENDED_DTB
2746 Do not enable appended dtb support.
2748 config MIPS_ELF_APPENDED_DTB
2751 With this option, the boot code will look for a device tree binary
2752 DTB) included in the vmlinux ELF section .appended_dtb. By default
2753 it is empty and the DTB can be appended using binutils command
2756 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2758 This is meant as a backward compatiblity convenience for those
2759 systems with a bootloader that can't be upgraded to accommodate
2760 the documented boot protocol using a device tree.
2762 config MIPS_RAW_APPENDED_DTB
2765 With this option, the boot code will look for a device tree binary
2766 DTB) appended to raw vmlinux.bin (without decompressor).
2767 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2769 This is meant as a backward compatibility convenience for those
2770 systems with a bootloader that can't be upgraded to accommodate
2771 the documented boot protocol using a device tree.
2773 Beware that there is very little in terms of protection against
2774 this option being confused by leftover garbage in memory that might
2775 look like a DTB header after a reboot if no actual DTB is appended
2776 to vmlinux.bin. Do not leave this option active in a production kernel
2777 if you don't intend to always append a DTB.
2779 config MIPS_ZBOOT_APPENDED_DTB
2781 depends on SYS_SUPPORTS_ZBOOT
2783 With this option, the boot code will look for a device tree binary
2784 DTB) appended to raw vmlinuz.bin (with decompressor).
2785 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2787 This is meant as a backward compatibility convenience for those
2788 systems with a bootloader that can't be upgraded to accommodate
2789 the documented boot protocol using a device tree.
2791 Beware that there is very little in terms of protection against
2792 this option being confused by leftover garbage in memory that might
2793 look like a DTB header after a reboot if no actual DTB is appended
2794 to vmlinuz.bin. Do not leave this option active in a production kernel
2795 if you don't intend to always append a DTB.
2799 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2800 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2801 !MIPS_MALTA && !MIPS_SEAD3 && \
2803 default MIPS_CMDLINE_FROM_BOOTLOADER
2805 config MIPS_CMDLINE_FROM_DTB
2807 bool "Dtb kernel arguments if available"
2809 config MIPS_CMDLINE_DTB_EXTEND
2811 bool "Extend dtb kernel arguments with bootloader arguments"
2813 config MIPS_CMDLINE_FROM_BOOTLOADER
2814 bool "Bootloader kernel arguments if available"
2819 config LOCKDEP_SUPPORT
2823 config STACKTRACE_SUPPORT
2827 config HAVE_LATENCYTOP_SUPPORT
2831 config PGTABLE_LEVELS
2833 default 3 if 64BIT && !PAGE_SIZE_64KB
2836 source "init/Kconfig"
2838 source "kernel/Kconfig.freezer"
2840 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2848 bool "Support for PCI controller"
2849 depends on HW_HAS_PCI
2851 select NO_GENERIC_PCI_IOPORT_MAP
2853 Find out whether you have a PCI motherboard. PCI is the name of a
2854 bus system, i.e. the way the CPU talks to the other stuff inside
2855 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2859 bool "Support for HT-linked PCI"
2861 depends on CPU_LOONGSON3
2865 Loongson family machines use Hyper-Transport bus for inter-core
2866 connection and device connection. The PCI bus is a subordinate
2867 linked at HT. Choose Y for Loongson-3 based machines.
2872 source "drivers/pci/Kconfig"
2874 source "drivers/pci/pcie/Kconfig"
2877 # ISA support is now enabled via select. Too many systems still have the one
2878 # or other ISA chip on the board that users don't know about so don't expect
2879 # users to choose the right thing ...
2886 depends on HW_HAS_EISA
2888 select GENERIC_ISA_DMA
2890 The Extended Industry Standard Architecture (EISA) bus was
2891 developed as an open alternative to the IBM MicroChannel bus.
2893 The EISA bus provided some of the features of the IBM MicroChannel
2894 bus while maintaining backward compatibility with cards made for
2895 the older ISA bus. The EISA bus saw limited use between 1988 and
2896 1995 when it was made obsolete by the PCI bus.
2898 Say Y here if you are building a kernel for an EISA-based machine.
2902 source "drivers/eisa/Kconfig"
2905 bool "TURBOchannel support"
2906 depends on MACH_DECSTATION
2908 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2909 processors. TURBOchannel programming specifications are available
2911 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2913 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2914 Linux driver support status is documented at:
2915 <http://www.linux-mips.org/wiki/DECstation>
2925 select MIPS_EXTERNAL_TIMER
2933 source "drivers/pcmcia/Kconfig"
2935 source "drivers/pci/hotplug/Kconfig"
2938 tristate "RapidIO support"
2942 If you say Y here, the kernel will include drivers and
2943 infrastructure code to support RapidIO interconnect devices.
2945 source "drivers/rapidio/Kconfig"
2949 menu "Executable file formats"
2951 source "fs/Kconfig.binfmt"
2956 config MIPS32_COMPAT
2962 config SYSVIPC_COMPAT
2966 bool "Kernel support for o32 binaries"
2968 select ARCH_WANT_OLD_COMPAT_IPC
2970 select MIPS32_COMPAT
2971 select SYSVIPC_COMPAT if SYSVIPC
2973 Select this option if you want to run o32 binaries. These are pure
2974 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2975 existing binaries are in this format.
2980 bool "Kernel support for n32 binaries"
2983 select MIPS32_COMPAT
2984 select SYSVIPC_COMPAT if SYSVIPC
2986 Select this option if you want to run n32 binaries. These are
2987 64-bit binaries using 32-bit quantities for addressing and certain
2988 data that would normally be 64-bit. They are used in special
2995 default y if MIPS32_O32 || MIPS32_N32
2999 menu "Power management options"
3001 config ARCH_HIBERNATION_POSSIBLE
3003 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3005 config ARCH_SUSPEND_POSSIBLE
3007 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3009 source "kernel/power/Kconfig"
3013 config MIPS_EXTERNAL_TIMER
3016 menu "CPU Power Management"
3018 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3019 source "drivers/cpufreq/Kconfig"
3022 source "drivers/cpuidle/Kconfig"
3026 source "net/Kconfig"
3028 source "drivers/Kconfig"
3030 source "drivers/firmware/Kconfig"
3034 source "arch/mips/Kconfig.debug"
3036 source "security/Kconfig"
3038 source "crypto/Kconfig"
3040 source "lib/Kconfig"
3042 source "arch/mips/kvm/Kconfig"