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
12 select HAVE_IRQ_EXIT_ON_IRQ_STACK
14 select HAVE_PERF_EVENTS
15 select PERF_USE_VMALLOC
17 select HAVE_ARCH_SECCOMP_FILTER
18 select HAVE_ARCH_TRACEHOOK
19 select HAVE_BPF_JIT if !CPU_MICROMIPS
20 select HAVE_FUNCTION_TRACER
21 select HAVE_DYNAMIC_FTRACE
22 select HAVE_FTRACE_MCOUNT_RECORD
23 select HAVE_C_RECORDMCOUNT
24 select HAVE_FUNCTION_GRAPH_TRACER
26 select HAVE_KRETPROBES
27 select HAVE_SYSCALL_TRACEPOINTS
28 select HAVE_DEBUG_KMEMLEAK
29 select HAVE_SYSCALL_TRACEPOINTS
30 select ARCH_HAS_ELF_RANDOMIZE
31 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
32 select RTC_LIB if !MACH_LOONGSON64
33 select GENERIC_ATOMIC64 if !64BIT
34 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
36 select HAVE_DMA_CONTIGUOUS
37 select HAVE_DMA_API_DEBUG
38 select GENERIC_IRQ_PROBE
39 select GENERIC_IRQ_SHOW
40 select GENERIC_PCI_IOMAP
41 select HAVE_ARCH_JUMP_LABEL
42 select ARCH_WANT_IPC_PARSE_VERSION
43 select IRQ_FORCED_THREADING
45 select HAVE_MEMBLOCK_NODE_MAP
46 select ARCH_DISCARD_MEMBLOCK
47 select GENERIC_SMP_IDLE_THREAD
48 select BUILDTIME_EXTABLE_SORT
49 select GENERIC_CLOCKEVENTS
50 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
51 select GENERIC_CMOS_UPDATE
52 select HAVE_MOD_ARCH_SPECIFIC
54 select MODULES_USE_ELF_REL if MODULES
55 select MODULES_USE_ELF_RELA if MODULES && 64BIT
56 select CLONE_BACKWARDS
57 select HAVE_DEBUG_STACKOVERFLOW
58 select HAVE_CC_STACKPROTECTOR
59 select CPU_PM if CPU_IDLE
60 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
61 select ARCH_BINFMT_ELF_STATE
62 select SYSCTL_EXCEPTION_TRACE
63 select HAVE_VIRT_CPU_ACCOUNTING_GEN
64 select HAVE_IRQ_TIME_ACCOUNTING
65 select GENERIC_TIME_VSYSCALL
66 select ARCH_CLOCKSOURCE_DATA
68 menu "Machine selection"
75 bool "Alchemy processor based machines"
76 select ARCH_PHYS_ADDR_T_64BIT
80 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
81 select SYS_HAS_CPU_MIPS32_R1
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_APM_EMULATION
84 select ARCH_REQUIRE_GPIOLIB
85 select SYS_SUPPORTS_ZBOOT
89 bool "Texas Instruments AR7"
91 select DMA_NONCOHERENT
97 select SYS_HAS_CPU_MIPS32_R1
98 select SYS_HAS_EARLY_PRINTK
99 select SYS_SUPPORTS_32BIT_KERNEL
100 select SYS_SUPPORTS_LITTLE_ENDIAN
101 select SYS_SUPPORTS_MIPS16
102 select SYS_SUPPORTS_ZBOOT_UART16550
103 select ARCH_REQUIRE_GPIOLIB
107 Support for the Texas Instruments AR7 System-on-a-Chip
108 family: TNETD7100, 7200 and 7300.
111 bool "Atheros AR231x/AR531x SoC support"
114 select DMA_NONCOHERENT
117 select SYS_HAS_CPU_MIPS32_R1
118 select SYS_SUPPORTS_BIG_ENDIAN
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_HAS_EARLY_PRINTK
122 Support for Atheros AR231x and Atheros AR531x based boards
125 bool "Atheros AR71XX/AR724X/AR913X based boards"
126 select ARCH_HAS_RESET_CONTROLLER
127 select ARCH_REQUIRE_GPIOLIB
131 select DMA_NONCOHERENT
137 select SYS_HAS_CPU_MIPS32_R2
138 select SYS_HAS_EARLY_PRINTK
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_BIG_ENDIAN
141 select SYS_SUPPORTS_MIPS16
142 select SYS_SUPPORTS_ZBOOT
145 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
148 bool "Broadcom Generic BMIPS kernel"
150 select NO_EXCEPT_FILL
156 select BCM7038_L1_IRQ
157 select BCM7120_L2_IRQ
158 select BRCMSTB_L2_IRQ
160 select DMA_NONCOHERENT
161 select SYS_SUPPORTS_32BIT_KERNEL
162 select SYS_SUPPORTS_LITTLE_ENDIAN
163 select SYS_SUPPORTS_BIG_ENDIAN
164 select SYS_SUPPORTS_HIGHMEM
165 select SYS_HAS_CPU_BMIPS32_3300
166 select SYS_HAS_CPU_BMIPS4350
167 select SYS_HAS_CPU_BMIPS4380
168 select SYS_HAS_CPU_BMIPS5000
170 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
171 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
172 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
173 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
175 Build a generic DT-based kernel image that boots on select
176 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
177 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
178 must be set appropriately for your board.
181 bool "Broadcom BCM47XX based boards"
182 select ARCH_WANT_OPTIONAL_GPIOLIB
186 select DMA_NONCOHERENT
189 select SYS_HAS_CPU_MIPS32_R1
190 select NO_EXCEPT_FILL
191 select SYS_SUPPORTS_32BIT_KERNEL
192 select SYS_SUPPORTS_LITTLE_ENDIAN
193 select SYS_SUPPORTS_MIPS16
194 select SYS_HAS_EARLY_PRINTK
195 select USE_GENERIC_EARLY_PRINTK_8250
197 select LEDS_GPIO_REGISTER
200 Support for BCM47XX based boards
203 bool "Broadcom BCM63XX based boards"
208 select DMA_NONCOHERENT
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_BIG_ENDIAN
212 select SYS_HAS_EARLY_PRINTK
214 select ARCH_REQUIRE_GPIOLIB
216 select MIPS_L1_CACHE_SHIFT_4
218 Support for BCM63XX based boards
225 select DMA_NONCOHERENT
231 select PCI_GT64XXX_PCI0
233 select SYS_HAS_CPU_NEVADA
234 select SYS_HAS_EARLY_PRINTK
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_64BIT_KERNEL
237 select SYS_SUPPORTS_LITTLE_ENDIAN
238 select USE_GENERIC_EARLY_PRINTK_8250
240 config MACH_DECSTATION
244 select CEVT_R4K if CPU_R4X00
246 select CSRC_R4K if CPU_R4X00
247 select CPU_DADDI_WORKAROUNDS if 64BIT
248 select CPU_R4000_WORKAROUNDS if 64BIT
249 select CPU_R4400_WORKAROUNDS if 64BIT
250 select DMA_NONCOHERENT
253 select SYS_HAS_CPU_R3000
254 select SYS_HAS_CPU_R4X00
255 select SYS_SUPPORTS_32BIT_KERNEL
256 select SYS_SUPPORTS_64BIT_KERNEL
257 select SYS_SUPPORTS_LITTLE_ENDIAN
258 select SYS_SUPPORTS_128HZ
259 select SYS_SUPPORTS_256HZ
260 select SYS_SUPPORTS_1024HZ
261 select MIPS_L1_CACHE_SHIFT_4
263 This enables support for DEC's MIPS based workstations. For details
264 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
265 DECstation porting pages on <http://decstation.unix-ag.org/>.
267 If you have one of the following DECstation Models you definitely
268 want to choose R4xx0 for the CPU Type:
275 otherwise choose R3000.
278 bool "Jazz family of machines"
281 select ARCH_MAY_HAVE_PC_FDC
284 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
285 select GENERIC_ISA_DMA
286 select HAVE_PCSPKR_PLATFORM
291 select SYS_HAS_CPU_R4X00
292 select SYS_SUPPORTS_32BIT_KERNEL
293 select SYS_SUPPORTS_64BIT_KERNEL
294 select SYS_SUPPORTS_100HZ
296 This a family of machines based on the MIPS R4030 chipset which was
297 used by several vendors to build RISC/os and Windows NT workstations.
298 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
299 Olivetti M700-10 workstations.
302 bool "Ingenic SoC based machines"
303 select SYS_SUPPORTS_32BIT_KERNEL
304 select SYS_SUPPORTS_LITTLE_ENDIAN
305 select SYS_SUPPORTS_ZBOOT_UART16550
306 select DMA_NONCOHERENT
308 select ARCH_REQUIRE_GPIOLIB
310 select GENERIC_IRQ_CHIP
316 bool "Lantiq based platforms"
317 select DMA_NONCOHERENT
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_SUPPORTS_32BIT_KERNEL
325 select SYS_SUPPORTS_MIPS16
326 select SYS_SUPPORTS_MULTITHREADING
327 select SYS_HAS_EARLY_PRINTK
328 select ARCH_REQUIRE_GPIOLIB
331 select HAVE_MACH_CLKDEV
335 select PINCTRL_LANTIQ
336 select ARCH_HAS_RESET_CONTROLLER
337 select RESET_CONTROLLER
340 bool "LASAT Networks platforms"
344 select DMA_NONCOHERENT
345 select SYS_HAS_EARLY_PRINTK
348 select PCI_GT64XXX_PCI0
350 select R5000_CPU_SCACHE
351 select SYS_HAS_CPU_R5000
352 select SYS_SUPPORTS_32BIT_KERNEL
353 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
354 select SYS_SUPPORTS_LITTLE_ENDIAN
356 config MACH_LOONGSON32
357 bool "Loongson-1 family of machines"
358 select SYS_SUPPORTS_ZBOOT
360 This enables support for the Loongson-1 family of machines.
362 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
363 the Institute of Computing Technology (ICT), Chinese Academy of
366 config MACH_LOONGSON64
367 bool "Loongson-2/3 family of machines"
368 select SYS_SUPPORTS_ZBOOT
370 This enables the support of Loongson-2/3 family of machines.
372 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
373 family of multi-core CPUs. They are both 64-bit general-purpose
374 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
375 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
376 in the People's Republic of China. The chief architect is Professor
379 config MACH_PISTACHIO
380 bool "IMG Pistachio SoC based boards"
381 select ARCH_REQUIRE_GPIOLIB
385 select CLKSRC_MIPS_GIC
388 select DMA_MAYBE_COHERENT
392 select MIPS_CPU_SCACHE
396 select SYS_HAS_CPU_MIPS32_R2
397 select SYS_SUPPORTS_32BIT_KERNEL
398 select SYS_SUPPORTS_LITTLE_ENDIAN
399 select SYS_SUPPORTS_MIPS_CPS
400 select SYS_SUPPORTS_MULTITHREADING
401 select SYS_SUPPORTS_ZBOOT
402 select SYS_HAS_EARLY_PRINTK
403 select USE_GENERIC_EARLY_PRINTK_8250
406 This enables support for the IMG Pistachio SoC platform.
409 bool "MIPSfpga Xilinx based boards"
410 select ARCH_REQUIRE_GPIOLIB
419 select MIPS_CPU_SCACHE
420 select SYS_HAS_EARLY_PRINTK
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_LITTLE_ENDIAN
424 select SYS_SUPPORTS_ZBOOT_UART16550
426 select USE_GENERIC_EARLY_PRINTK_8250
428 This enables support for the IMG University Program MIPSfpga platform.
431 bool "MIPS Malta board"
432 select ARCH_MAY_HAVE_PC_FDC
438 select CLKSRC_MIPS_GIC
440 select DMA_MAYBE_COHERENT
441 select GENERIC_ISA_DMA
442 select HAVE_PCSPKR_PLATFORM
449 select MIPS_CPU_SCACHE
450 select MIPS_L1_CACHE_SHIFT_6
451 select PCI_GT64XXX_PCI0
455 select SYS_HAS_CPU_MIPS32_R1
456 select SYS_HAS_CPU_MIPS32_R2
457 select SYS_HAS_CPU_MIPS32_R3_5
458 select SYS_HAS_CPU_MIPS32_R5
459 select SYS_HAS_CPU_MIPS32_R6
460 select SYS_HAS_CPU_MIPS64_R1
461 select SYS_HAS_CPU_MIPS64_R2
462 select SYS_HAS_CPU_MIPS64_R6
463 select SYS_HAS_CPU_NEVADA
464 select SYS_HAS_CPU_RM7000
465 select SYS_SUPPORTS_32BIT_KERNEL
466 select SYS_SUPPORTS_64BIT_KERNEL
467 select SYS_SUPPORTS_BIG_ENDIAN
468 select SYS_SUPPORTS_HIGHMEM
469 select SYS_SUPPORTS_LITTLE_ENDIAN
470 select SYS_SUPPORTS_MICROMIPS
471 select SYS_SUPPORTS_MIPS_CMP
472 select SYS_SUPPORTS_MIPS_CPS
473 select SYS_SUPPORTS_MIPS16
474 select SYS_SUPPORTS_MULTITHREADING
475 select SYS_SUPPORTS_SMARTMIPS
476 select SYS_SUPPORTS_ZBOOT
478 select ZONE_DMA32 if 64BIT
482 This enables support for the MIPS Technologies Malta evaluation
486 bool "MIPS SEAD3 board"
492 select CLKSRC_MIPS_GIC
494 select CPU_MIPSR2_IRQ_VI
495 select CPU_MIPSR2_IRQ_EI
496 select DMA_NONCOHERENT
501 select SYS_HAS_CPU_MIPS32_R1
502 select SYS_HAS_CPU_MIPS32_R2
503 select SYS_HAS_CPU_MIPS64_R1
504 select SYS_HAS_EARLY_PRINTK
505 select SYS_SUPPORTS_32BIT_KERNEL
506 select SYS_SUPPORTS_64BIT_KERNEL
507 select SYS_SUPPORTS_BIG_ENDIAN
508 select SYS_SUPPORTS_LITTLE_ENDIAN
509 select SYS_SUPPORTS_SMARTMIPS
510 select SYS_SUPPORTS_MICROMIPS
511 select SYS_SUPPORTS_MIPS16
512 select USB_EHCI_BIG_ENDIAN_DESC
513 select USB_EHCI_BIG_ENDIAN_MMIO
516 This enables support for the MIPS Technologies SEAD3 evaluation
520 bool "NEC EMMA2RH Mark-eins board"
524 This enables support for the NEC Electronics Mark-eins boards.
527 bool "NEC VR4100 series based machines"
530 select SYS_HAS_CPU_VR41XX
531 select SYS_SUPPORTS_MIPS16
532 select ARCH_REQUIRE_GPIOLIB
535 bool "NXP STB220 board"
538 Support for NXP Semiconductors STB220 Development Board.
545 Support for NXP Semiconductors STB225 Development Board.
548 bool "PMC-Sierra MSP chipsets"
551 select DMA_NONCOHERENT
553 select NO_EXCEPT_FILL
555 select SYS_HAS_CPU_MIPS32_R1
556 select SYS_HAS_CPU_MIPS32_R2
557 select SYS_SUPPORTS_32BIT_KERNEL
558 select SYS_SUPPORTS_BIG_ENDIAN
559 select SYS_SUPPORTS_MIPS16
562 select SERIAL_8250_CONSOLE
563 select USB_EHCI_BIG_ENDIAN_MMIO
564 select USB_EHCI_BIG_ENDIAN_DESC
566 This adds support for the PMC-Sierra family of Multi-Service
567 Processor System-On-A-Chips. These parts include a number
568 of integrated peripherals, interfaces and DSPs in addition to
569 a variety of MIPS cores.
572 bool "Ralink based machines"
576 select DMA_NONCOHERENT
579 select SYS_HAS_CPU_MIPS32_R1
580 select SYS_HAS_CPU_MIPS32_R2
581 select SYS_SUPPORTS_32BIT_KERNEL
582 select SYS_SUPPORTS_LITTLE_ENDIAN
583 select SYS_SUPPORTS_MIPS16
584 select SYS_HAS_EARLY_PRINTK
585 select HAVE_MACH_CLKDEV
587 select ARCH_HAS_RESET_CONTROLLER
588 select RESET_CONTROLLER
591 bool "SGI IP22 (Indy/Indigo2)"
597 select DEFAULT_SGI_PARTITION
598 select DMA_NONCOHERENT
602 select IP22_CPU_SCACHE
604 select GENERIC_ISA_DMA_SUPPORT_BROKEN
606 select SGI_HAS_INDYDOG
612 select SYS_HAS_CPU_R4X00
613 select SYS_HAS_CPU_R5000
615 # Disable EARLY_PRINTK for now since it leads to overwritten prom
616 # memory during early boot on some machines.
618 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
619 # for a more details discussion
621 # select SYS_HAS_EARLY_PRINTK
622 select SYS_SUPPORTS_32BIT_KERNEL
623 select SYS_SUPPORTS_64BIT_KERNEL
624 select SYS_SUPPORTS_BIG_ENDIAN
625 select MIPS_L1_CACHE_SHIFT_7
627 This are the SGI Indy, Challenge S and Indigo2, as well as certain
628 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
629 that runs on these, say Y here.
632 bool "SGI IP27 (Origin200/2000)"
636 select DEFAULT_SGI_PARTITION
638 select SYS_HAS_EARLY_PRINTK
640 select NR_CPUS_DEFAULT_64
641 select SYS_HAS_CPU_R10000
642 select SYS_SUPPORTS_64BIT_KERNEL
643 select SYS_SUPPORTS_BIG_ENDIAN
644 select SYS_SUPPORTS_NUMA
645 select SYS_SUPPORTS_SMP
646 select MIPS_L1_CACHE_SHIFT_7
648 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
649 workstations. To compile a Linux kernel that runs on these, say Y
653 bool "SGI IP28 (Indigo2 R10k)"
659 select DEFAULT_SGI_PARTITION
660 select DMA_NONCOHERENT
661 select GENERIC_ISA_DMA_SUPPORT_BROKEN
667 select SGI_HAS_INDYDOG
673 select SYS_HAS_CPU_R10000
675 # Disable EARLY_PRINTK for now since it leads to overwritten prom
676 # memory during early boot on some machines.
678 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
679 # for a more details discussion
681 # select SYS_HAS_EARLY_PRINTK
682 select SYS_SUPPORTS_64BIT_KERNEL
683 select SYS_SUPPORTS_BIG_ENDIAN
684 select MIPS_L1_CACHE_SHIFT_7
686 This is the SGI Indigo2 with R10000 processor. To compile a Linux
687 kernel that runs on these, say Y here.
696 select DMA_NONCOHERENT
699 select R5000_CPU_SCACHE
700 select RM7000_CPU_SCACHE
701 select SYS_HAS_CPU_R5000
702 select SYS_HAS_CPU_R10000 if BROKEN
703 select SYS_HAS_CPU_RM7000
704 select SYS_HAS_CPU_NEVADA
705 select SYS_SUPPORTS_64BIT_KERNEL
706 select SYS_SUPPORTS_BIG_ENDIAN
708 If you want this kernel to run on SGI O2 workstation, say Y here.
711 bool "Sibyte BCM91120C-CRhine"
714 select SIBYTE_BCM1120
716 select SYS_HAS_CPU_SB1
717 select SYS_SUPPORTS_BIG_ENDIAN
718 select SYS_SUPPORTS_LITTLE_ENDIAN
721 bool "Sibyte BCM91120x-Carmel"
724 select SIBYTE_BCM1120
726 select SYS_HAS_CPU_SB1
727 select SYS_SUPPORTS_BIG_ENDIAN
728 select SYS_SUPPORTS_LITTLE_ENDIAN
731 bool "Sibyte BCM91125C-CRhone"
734 select SIBYTE_BCM1125
736 select SYS_HAS_CPU_SB1
737 select SYS_SUPPORTS_BIG_ENDIAN
738 select SYS_SUPPORTS_HIGHMEM
739 select SYS_SUPPORTS_LITTLE_ENDIAN
742 bool "Sibyte BCM91125E-Rhone"
745 select SIBYTE_BCM1125H
747 select SYS_HAS_CPU_SB1
748 select SYS_SUPPORTS_BIG_ENDIAN
749 select SYS_SUPPORTS_LITTLE_ENDIAN
752 bool "Sibyte BCM91250A-SWARM"
755 select HAVE_PATA_PLATFORM
758 select SYS_HAS_CPU_SB1
759 select SYS_SUPPORTS_BIG_ENDIAN
760 select SYS_SUPPORTS_HIGHMEM
761 select SYS_SUPPORTS_LITTLE_ENDIAN
762 select ZONE_DMA32 if 64BIT
764 config SIBYTE_LITTLESUR
765 bool "Sibyte BCM91250C2-LittleSur"
768 select HAVE_PATA_PLATFORM
771 select SYS_HAS_CPU_SB1
772 select SYS_SUPPORTS_BIG_ENDIAN
773 select SYS_SUPPORTS_HIGHMEM
774 select SYS_SUPPORTS_LITTLE_ENDIAN
776 config SIBYTE_SENTOSA
777 bool "Sibyte BCM91250E-Sentosa"
782 select SYS_HAS_CPU_SB1
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_LITTLE_ENDIAN
787 bool "Sibyte BCM91480B-BigSur"
790 select NR_CPUS_DEFAULT_4
791 select SIBYTE_BCM1x80
793 select SYS_HAS_CPU_SB1
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_HIGHMEM
796 select SYS_SUPPORTS_LITTLE_ENDIAN
797 select ZONE_DMA32 if 64BIT
800 bool "SNI RM200/300/400"
801 select FW_ARC if CPU_LITTLE_ENDIAN
802 select FW_ARC32 if CPU_LITTLE_ENDIAN
803 select FW_SNIPROM if CPU_BIG_ENDIAN
804 select ARCH_MAY_HAVE_PC_FDC
808 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
809 select DMA_NONCOHERENT
810 select GENERIC_ISA_DMA
811 select HAVE_PCSPKR_PLATFORM
818 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
819 select SYS_HAS_CPU_R4X00
820 select SYS_HAS_CPU_R5000
821 select SYS_HAS_CPU_R10000
822 select R5000_CPU_SCACHE
823 select SYS_HAS_EARLY_PRINTK
824 select SYS_SUPPORTS_32BIT_KERNEL
825 select SYS_SUPPORTS_64BIT_KERNEL
826 select SYS_SUPPORTS_BIG_ENDIAN
827 select SYS_SUPPORTS_HIGHMEM
828 select SYS_SUPPORTS_LITTLE_ENDIAN
830 The SNI RM200/300/400 are MIPS-based machines manufactured by
831 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
832 Technology and now in turn merged with Fujitsu. Say Y here to
833 support this machine type.
836 bool "Toshiba TX39 series based machines"
839 bool "Toshiba TX49 series based machines"
841 config MIKROTIK_RB532
842 bool "Mikrotik RB532 boards"
845 select DMA_NONCOHERENT
848 select SYS_HAS_CPU_MIPS32_R1
849 select SYS_SUPPORTS_32BIT_KERNEL
850 select SYS_SUPPORTS_LITTLE_ENDIAN
853 select ARCH_REQUIRE_GPIOLIB
854 select MIPS_L1_CACHE_SHIFT_4
856 Support the Mikrotik(tm) RouterBoard 532 series,
857 based on the IDT RC32434 SoC.
859 config CAVIUM_OCTEON_SOC
860 bool "Cavium Networks Octeon SoC based boards"
862 select ARCH_PHYS_ADDR_T_64BIT
864 select SYS_SUPPORTS_64BIT_KERNEL
865 select SYS_SUPPORTS_BIG_ENDIAN
867 select EDAC_ATOMIC_SCRUB
868 select SYS_SUPPORTS_LITTLE_ENDIAN
869 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
870 select SYS_HAS_EARLY_PRINTK
871 select SYS_HAS_CPU_CAVIUM_OCTEON
876 select ARCH_REQUIRE_GPIOLIB
879 select ARCH_SPARSEMEM_ENABLE
880 select SYS_SUPPORTS_SMP
881 select NR_CPUS_DEFAULT_16
883 select MTD_COMPLEX_MAPPINGS
885 This option supports all of the Octeon reference boards from Cavium
886 Networks. It builds a kernel that dynamically determines the Octeon
887 CPU type and supports all known board reference implementations.
888 Some of the supported boards are:
895 Say Y here for most Octeon reference boards.
898 bool "Netlogic XLR/XLS based systems"
901 select SYS_HAS_CPU_XLR
902 select SYS_SUPPORTS_SMP
905 select SYS_SUPPORTS_32BIT_KERNEL
906 select SYS_SUPPORTS_64BIT_KERNEL
907 select ARCH_PHYS_ADDR_T_64BIT
908 select SYS_SUPPORTS_BIG_ENDIAN
909 select SYS_SUPPORTS_HIGHMEM
911 select NR_CPUS_DEFAULT_32
915 select ZONE_DMA32 if 64BIT
917 select SYS_HAS_EARLY_PRINTK
918 select SYS_SUPPORTS_ZBOOT
919 select SYS_SUPPORTS_ZBOOT_UART16550
921 Support for systems based on Netlogic XLR and XLS processors.
922 Say Y here if you have a XLR or XLS based board.
925 bool "Netlogic XLP based systems"
928 select SYS_HAS_CPU_XLP
929 select SYS_SUPPORTS_SMP
931 select SYS_SUPPORTS_32BIT_KERNEL
932 select SYS_SUPPORTS_64BIT_KERNEL
933 select ARCH_PHYS_ADDR_T_64BIT
934 select ARCH_REQUIRE_GPIOLIB
935 select SYS_SUPPORTS_BIG_ENDIAN
936 select SYS_SUPPORTS_LITTLE_ENDIAN
937 select SYS_SUPPORTS_HIGHMEM
939 select NR_CPUS_DEFAULT_32
943 select ZONE_DMA32 if 64BIT
945 select SYS_HAS_EARLY_PRINTK
947 select SYS_SUPPORTS_ZBOOT
948 select SYS_SUPPORTS_ZBOOT_UART16550
950 This board is based on Netlogic XLP Processor.
951 Say Y here if you have a XLP based board.
954 bool "Para-Virtualized guest system"
958 select SYS_SUPPORTS_64BIT_KERNEL
959 select SYS_SUPPORTS_32BIT_KERNEL
960 select SYS_SUPPORTS_BIG_ENDIAN
961 select SYS_SUPPORTS_SMP
962 select NR_CPUS_DEFAULT_4
963 select SYS_HAS_EARLY_PRINTK
964 select SYS_HAS_CPU_MIPS32_R2
965 select SYS_HAS_CPU_MIPS64_R2
966 select SYS_HAS_CPU_CAVIUM_OCTEON
970 This option supports guest running under ????
974 source "arch/mips/alchemy/Kconfig"
975 source "arch/mips/ath25/Kconfig"
976 source "arch/mips/ath79/Kconfig"
977 source "arch/mips/bcm47xx/Kconfig"
978 source "arch/mips/bcm63xx/Kconfig"
979 source "arch/mips/bmips/Kconfig"
980 source "arch/mips/jazz/Kconfig"
981 source "arch/mips/jz4740/Kconfig"
982 source "arch/mips/lantiq/Kconfig"
983 source "arch/mips/lasat/Kconfig"
984 source "arch/mips/pistachio/Kconfig"
985 source "arch/mips/pmcs-msp71xx/Kconfig"
986 source "arch/mips/ralink/Kconfig"
987 source "arch/mips/sgi-ip27/Kconfig"
988 source "arch/mips/sibyte/Kconfig"
989 source "arch/mips/txx9/Kconfig"
990 source "arch/mips/vr41xx/Kconfig"
991 source "arch/mips/cavium-octeon/Kconfig"
992 source "arch/mips/loongson32/Kconfig"
993 source "arch/mips/loongson64/Kconfig"
994 source "arch/mips/netlogic/Kconfig"
995 source "arch/mips/paravirt/Kconfig"
996 source "arch/mips/xilfpga/Kconfig"
1000 config RWSEM_GENERIC_SPINLOCK
1004 config RWSEM_XCHGADD_ALGORITHM
1007 config ARCH_HAS_ILOG2_U32
1011 config ARCH_HAS_ILOG2_U64
1015 config GENERIC_HWEIGHT
1019 config GENERIC_CALIBRATE_DELAY
1023 config SCHED_OMIT_FRAME_POINTER
1028 # Select some configuration options automatically based on user selections.
1033 config ARCH_MAY_HAVE_PC_FDC
1069 config MIPS_CLOCK_VSYSCALL
1070 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1073 select ARCH_REQUIRE_GPIOLIB
1079 config ARCH_DMA_ADDR_T_64BIT
1080 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
1082 config ARCH_SUPPORTS_UPROBES
1085 config DMA_MAYBE_COHERENT
1086 select DMA_NONCOHERENT
1092 config DMA_NONCOHERENT
1094 select NEED_DMA_MAP_STATE
1096 config NEED_DMA_MAP_STATE
1099 config SYS_HAS_EARLY_PRINTK
1103 bool "Support for hot-pluggable CPUs"
1104 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1106 Say Y here to allow turning CPUs off and on. CPUs can be
1107 controlled through /sys/devices/system/cpu.
1108 (Note: power management support will enable this option
1109 automatically on SMP systems. )
1110 Say N if you want to disable CPU hotplug.
1112 config SYS_SUPPORTS_HOTPLUG_CPU
1115 config MIPS_BONITO64
1130 config NO_IOPORT_MAP
1136 config GENERIC_ISA_DMA
1138 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1141 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1143 select GENERIC_ISA_DMA
1148 config HOLES_IN_ZONE
1152 # Endianness selection. Sufficiently obscure so many users don't know what to
1153 # answer,so we try hard to limit the available choices. Also the use of a
1154 # choice statement should be more obvious to the user.
1157 prompt "Endianness selection"
1159 Some MIPS machines can be configured for either little or big endian
1160 byte order. These modes require different kernels and a different
1161 Linux distribution. In general there is one preferred byteorder for a
1162 particular system but some systems are just as commonly used in the
1163 one or the other endianness.
1165 config CPU_BIG_ENDIAN
1167 depends on SYS_SUPPORTS_BIG_ENDIAN
1169 config CPU_LITTLE_ENDIAN
1170 bool "Little endian"
1171 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1178 config SYS_SUPPORTS_APM_EMULATION
1181 config SYS_SUPPORTS_BIG_ENDIAN
1184 config SYS_SUPPORTS_LITTLE_ENDIAN
1187 config SYS_SUPPORTS_HUGETLBFS
1189 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1192 config MIPS_HUGE_TLB_SUPPORT
1193 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1210 config PCI_GT64XXX_PCI0
1213 config NO_EXCEPT_FILL
1220 select DMA_NONCOHERENT
1222 select SWAP_IO_SPACE
1223 select SYS_HAS_CPU_R5500
1224 select SYS_SUPPORTS_32BIT_KERNEL
1225 select SYS_SUPPORTS_64BIT_KERNEL
1226 select SYS_SUPPORTS_BIG_ENDIAN
1233 select DMA_NONCOHERENT
1234 select SYS_HAS_CPU_MIPS32_R2
1235 select SYS_SUPPORTS_32BIT_KERNEL
1236 select SYS_SUPPORTS_LITTLE_ENDIAN
1237 select SYS_SUPPORTS_BIG_ENDIAN
1238 select SYS_SUPPORTS_MIPS16
1239 select CPU_MIPSR2_IRQ_VI
1248 config SWAP_IO_SPACE
1251 config SGI_HAS_INDYDOG
1263 config SGI_HAS_ZILOG
1266 config SGI_HAS_I8042
1269 config DEFAULT_SGI_PARTITION
1281 config MIPS_L1_CACHE_SHIFT_4
1284 config MIPS_L1_CACHE_SHIFT_5
1287 config MIPS_L1_CACHE_SHIFT_6
1290 config MIPS_L1_CACHE_SHIFT_7
1293 config MIPS_L1_CACHE_SHIFT
1295 default "7" if MIPS_L1_CACHE_SHIFT_7
1296 default "6" if MIPS_L1_CACHE_SHIFT_6
1297 default "5" if MIPS_L1_CACHE_SHIFT_5
1298 default "4" if MIPS_L1_CACHE_SHIFT_4
1301 config HAVE_STD_PC_SERIAL_PORT
1305 bool "ARC console support"
1306 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1310 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1315 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1324 menu "CPU selection"
1330 config CPU_LOONGSON3
1331 bool "Loongson 3 CPU"
1332 depends on SYS_HAS_CPU_LOONGSON3
1333 select CPU_SUPPORTS_64BIT_KERNEL
1334 select CPU_SUPPORTS_HIGHMEM
1335 select CPU_SUPPORTS_HUGEPAGES
1336 select WEAK_ORDERING
1337 select WEAK_REORDERING_BEYOND_LLSC
1338 select ARCH_REQUIRE_GPIOLIB
1340 The Loongson 3 processor implements the MIPS64R2 instruction
1341 set with many extensions.
1343 config CPU_LOONGSON2E
1345 depends on SYS_HAS_CPU_LOONGSON2E
1346 select CPU_LOONGSON2
1348 The Loongson 2E processor implements the MIPS III instruction set
1349 with many extensions.
1351 It has an internal FPGA northbridge, which is compatible to
1354 config CPU_LOONGSON2F
1356 depends on SYS_HAS_CPU_LOONGSON2F
1357 select CPU_LOONGSON2
1358 select ARCH_REQUIRE_GPIOLIB
1360 The Loongson 2F processor implements the MIPS III instruction set
1361 with many extensions.
1363 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1364 have a similar programming interface with FPGA northbridge used in
1367 config CPU_LOONGSON1B
1369 depends on SYS_HAS_CPU_LOONGSON1B
1370 select CPU_LOONGSON1
1372 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1373 release 2 instruction set.
1375 config CPU_MIPS32_R1
1376 bool "MIPS32 Release 1"
1377 depends on SYS_HAS_CPU_MIPS32_R1
1378 select CPU_HAS_PREFETCH
1379 select CPU_SUPPORTS_32BIT_KERNEL
1380 select CPU_SUPPORTS_HIGHMEM
1382 Choose this option to build a kernel for release 1 or later of the
1383 MIPS32 architecture. Most modern embedded systems with a 32-bit
1384 MIPS processor are based on a MIPS32 processor. If you know the
1385 specific type of processor in your system, choose those that one
1386 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1387 Release 2 of the MIPS32 architecture is available since several
1388 years so chances are you even have a MIPS32 Release 2 processor
1389 in which case you should choose CPU_MIPS32_R2 instead for better
1392 config CPU_MIPS32_R2
1393 bool "MIPS32 Release 2"
1394 depends on SYS_HAS_CPU_MIPS32_R2
1395 select CPU_HAS_PREFETCH
1396 select CPU_SUPPORTS_32BIT_KERNEL
1397 select CPU_SUPPORTS_HIGHMEM
1398 select CPU_SUPPORTS_MSA
1401 Choose this option to build a kernel for release 2 or later of the
1402 MIPS32 architecture. Most modern embedded systems with a 32-bit
1403 MIPS processor are based on a MIPS32 processor. If you know the
1404 specific type of processor in your system, choose those that one
1405 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1407 config CPU_MIPS32_R6
1408 bool "MIPS32 Release 6"
1409 depends on SYS_HAS_CPU_MIPS32_R6
1410 select CPU_HAS_PREFETCH
1411 select CPU_SUPPORTS_32BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_MSA
1416 select MIPS_O32_FP64_SUPPORT
1418 Choose this option to build a kernel for release 6 or later of the
1419 MIPS32 architecture. New MIPS processors, starting with the Warrior
1420 family, are based on a MIPS32r6 processor. If you own an older
1421 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1423 config CPU_MIPS64_R1
1424 bool "MIPS64 Release 1"
1425 depends on SYS_HAS_CPU_MIPS64_R1
1426 select CPU_HAS_PREFETCH
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 select CPU_SUPPORTS_HIGHMEM
1430 select CPU_SUPPORTS_HUGEPAGES
1432 Choose this option to build a kernel for release 1 or later of the
1433 MIPS64 architecture. Many modern embedded systems with a 64-bit
1434 MIPS processor are based on a MIPS64 processor. If you know the
1435 specific type of processor in your system, choose those that one
1436 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1437 Release 2 of the MIPS64 architecture is available since several
1438 years so chances are you even have a MIPS64 Release 2 processor
1439 in which case you should choose CPU_MIPS64_R2 instead for better
1442 config CPU_MIPS64_R2
1443 bool "MIPS64 Release 2"
1444 depends on SYS_HAS_CPU_MIPS64_R2
1445 select CPU_HAS_PREFETCH
1446 select CPU_SUPPORTS_32BIT_KERNEL
1447 select CPU_SUPPORTS_64BIT_KERNEL
1448 select CPU_SUPPORTS_HIGHMEM
1449 select CPU_SUPPORTS_HUGEPAGES
1450 select CPU_SUPPORTS_MSA
1452 Choose this option to build a kernel for release 2 or later of the
1453 MIPS64 architecture. Many modern embedded systems with a 64-bit
1454 MIPS processor are based on a MIPS64 processor. If you know the
1455 specific type of processor in your system, choose those that one
1456 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1458 config CPU_MIPS64_R6
1459 bool "MIPS64 Release 6"
1460 depends on SYS_HAS_CPU_MIPS64_R6
1461 select CPU_HAS_PREFETCH
1462 select CPU_SUPPORTS_32BIT_KERNEL
1463 select CPU_SUPPORTS_64BIT_KERNEL
1464 select CPU_SUPPORTS_HIGHMEM
1465 select CPU_SUPPORTS_MSA
1467 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1469 Choose this option to build a kernel for release 6 or later of the
1470 MIPS64 architecture. New MIPS processors, starting with the Warrior
1471 family, are based on a MIPS64r6 processor. If you own an older
1472 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1476 depends on SYS_HAS_CPU_R3000
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_HIGHMEM
1481 Please make sure to pick the right CPU type. Linux/MIPS is not
1482 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1483 *not* work on R4000 machines and vice versa. However, since most
1484 of the supported machines have an R4000 (or similar) CPU, R4x00
1485 might be a safe bet. If the resulting kernel does not work,
1486 try to recompile with R3000.
1490 depends on SYS_HAS_CPU_TX39XX
1491 select CPU_SUPPORTS_32BIT_KERNEL
1495 depends on SYS_HAS_CPU_VR41XX
1496 select CPU_SUPPORTS_32BIT_KERNEL
1497 select CPU_SUPPORTS_64BIT_KERNEL
1499 The options selects support for the NEC VR4100 series of processors.
1500 Only choose this option if you have one of these processors as a
1501 kernel built with this option will not run on any other type of
1502 processor or vice versa.
1506 depends on SYS_HAS_CPU_R4300
1507 select CPU_SUPPORTS_32BIT_KERNEL
1508 select CPU_SUPPORTS_64BIT_KERNEL
1510 MIPS Technologies R4300-series processors.
1514 depends on SYS_HAS_CPU_R4X00
1515 select CPU_SUPPORTS_32BIT_KERNEL
1516 select CPU_SUPPORTS_64BIT_KERNEL
1517 select CPU_SUPPORTS_HUGEPAGES
1519 MIPS Technologies R4000-series processors other than 4300, including
1520 the R4000, R4400, R4600, and 4700.
1524 depends on SYS_HAS_CPU_TX49XX
1525 select CPU_HAS_PREFETCH
1526 select CPU_SUPPORTS_32BIT_KERNEL
1527 select CPU_SUPPORTS_64BIT_KERNEL
1528 select CPU_SUPPORTS_HUGEPAGES
1532 depends on SYS_HAS_CPU_R5000
1533 select CPU_SUPPORTS_32BIT_KERNEL
1534 select CPU_SUPPORTS_64BIT_KERNEL
1535 select CPU_SUPPORTS_HUGEPAGES
1537 MIPS Technologies R5000-series processors other than the Nevada.
1541 depends on SYS_HAS_CPU_R5432
1542 select CPU_SUPPORTS_32BIT_KERNEL
1543 select CPU_SUPPORTS_64BIT_KERNEL
1544 select CPU_SUPPORTS_HUGEPAGES
1548 depends on SYS_HAS_CPU_R5500
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_64BIT_KERNEL
1551 select CPU_SUPPORTS_HUGEPAGES
1553 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1558 depends on SYS_HAS_CPU_R6000
1559 select CPU_SUPPORTS_32BIT_KERNEL
1561 MIPS Technologies R6000 and R6000A series processors. Note these
1562 processors are extremely rare and the support for them is incomplete.
1566 depends on SYS_HAS_CPU_NEVADA
1567 select CPU_SUPPORTS_32BIT_KERNEL
1568 select CPU_SUPPORTS_64BIT_KERNEL
1569 select CPU_SUPPORTS_HUGEPAGES
1571 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1575 depends on SYS_HAS_CPU_R8000
1576 select CPU_HAS_PREFETCH
1577 select CPU_SUPPORTS_64BIT_KERNEL
1579 MIPS Technologies R8000 processors. Note these processors are
1580 uncommon and the support for them is incomplete.
1584 depends on SYS_HAS_CPU_R10000
1585 select CPU_HAS_PREFETCH
1586 select CPU_SUPPORTS_32BIT_KERNEL
1587 select CPU_SUPPORTS_64BIT_KERNEL
1588 select CPU_SUPPORTS_HIGHMEM
1589 select CPU_SUPPORTS_HUGEPAGES
1591 MIPS Technologies R10000-series processors.
1595 depends on SYS_HAS_CPU_RM7000
1596 select CPU_HAS_PREFETCH
1597 select CPU_SUPPORTS_32BIT_KERNEL
1598 select CPU_SUPPORTS_64BIT_KERNEL
1599 select CPU_SUPPORTS_HIGHMEM
1600 select CPU_SUPPORTS_HUGEPAGES
1604 depends on SYS_HAS_CPU_SB1
1605 select CPU_SUPPORTS_32BIT_KERNEL
1606 select CPU_SUPPORTS_64BIT_KERNEL
1607 select CPU_SUPPORTS_HIGHMEM
1608 select CPU_SUPPORTS_HUGEPAGES
1609 select WEAK_ORDERING
1611 config CPU_CAVIUM_OCTEON
1612 bool "Cavium Octeon processor"
1613 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1614 select CPU_HAS_PREFETCH
1615 select CPU_SUPPORTS_64BIT_KERNEL
1616 select WEAK_ORDERING
1617 select CPU_SUPPORTS_HIGHMEM
1618 select CPU_SUPPORTS_HUGEPAGES
1619 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1620 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1621 select MIPS_L1_CACHE_SHIFT_7
1623 The Cavium Octeon processor is a highly integrated chip containing
1624 many ethernet hardware widgets for networking tasks. The processor
1625 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1626 Full details can be found at http://www.caviumnetworks.com.
1629 bool "Broadcom BMIPS"
1630 depends on SYS_HAS_CPU_BMIPS
1632 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1633 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1634 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1635 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1636 select CPU_SUPPORTS_32BIT_KERNEL
1637 select DMA_NONCOHERENT
1639 select SWAP_IO_SPACE
1640 select WEAK_ORDERING
1641 select CPU_SUPPORTS_HIGHMEM
1642 select CPU_HAS_PREFETCH
1644 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1647 bool "Netlogic XLR SoC"
1648 depends on SYS_HAS_CPU_XLR
1649 select CPU_SUPPORTS_32BIT_KERNEL
1650 select CPU_SUPPORTS_64BIT_KERNEL
1651 select CPU_SUPPORTS_HIGHMEM
1652 select CPU_SUPPORTS_HUGEPAGES
1653 select WEAK_ORDERING
1654 select WEAK_REORDERING_BEYOND_LLSC
1656 Netlogic Microsystems XLR/XLS processors.
1659 bool "Netlogic XLP SoC"
1660 depends on SYS_HAS_CPU_XLP
1661 select CPU_SUPPORTS_32BIT_KERNEL
1662 select CPU_SUPPORTS_64BIT_KERNEL
1663 select CPU_SUPPORTS_HIGHMEM
1664 select WEAK_ORDERING
1665 select WEAK_REORDERING_BEYOND_LLSC
1666 select CPU_HAS_PREFETCH
1668 select CPU_SUPPORTS_HUGEPAGES
1670 Netlogic Microsystems XLP processors.
1673 config CPU_MIPS32_3_5_FEATURES
1674 bool "MIPS32 Release 3.5 Features"
1675 depends on SYS_HAS_CPU_MIPS32_R3_5
1676 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1678 Choose this option to build a kernel for release 2 or later of the
1679 MIPS32 architecture including features from the 3.5 release such as
1680 support for Enhanced Virtual Addressing (EVA).
1682 config CPU_MIPS32_3_5_EVA
1683 bool "Enhanced Virtual Addressing (EVA)"
1684 depends on CPU_MIPS32_3_5_FEATURES
1688 Choose this option if you want to enable the Enhanced Virtual
1689 Addressing (EVA) on your MIPS32 core (such as proAptiv).
1690 One of its primary benefits is an increase in the maximum size
1691 of lowmem (up to 3GB). If unsure, say 'N' here.
1693 config CPU_MIPS32_R5_FEATURES
1694 bool "MIPS32 Release 5 Features"
1695 depends on SYS_HAS_CPU_MIPS32_R5
1696 depends on CPU_MIPS32_R2
1698 Choose this option to build a kernel for release 2 or later of the
1699 MIPS32 architecture including features from release 5 such as
1700 support for Extended Physical Addressing (XPA).
1702 config CPU_MIPS32_R5_XPA
1703 bool "Extended Physical Addressing (XPA)"
1704 depends on CPU_MIPS32_R5_FEATURES
1706 depends on !PAGE_SIZE_4KB
1707 depends on SYS_SUPPORTS_HIGHMEM
1710 select ARCH_PHYS_ADDR_T_64BIT
1713 Choose this option if you want to enable the Extended Physical
1714 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1715 benefit is to increase physical addressing equal to or greater
1716 than 40 bits. Note that this has the side effect of turning on
1717 64-bit addressing which in turn makes the PTEs 64-bit in size.
1718 If unsure, say 'N' here.
1721 config CPU_NOP_WORKAROUNDS
1724 config CPU_JUMP_WORKAROUNDS
1727 config CPU_LOONGSON2F_WORKAROUNDS
1728 bool "Loongson 2F Workarounds"
1730 select CPU_NOP_WORKAROUNDS
1731 select CPU_JUMP_WORKAROUNDS
1733 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1734 require workarounds. Without workarounds the system may hang
1735 unexpectedly. For more information please refer to the gas
1736 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1738 Loongson 2F03 and later have fixed these issues and no workarounds
1739 are needed. The workarounds have no significant side effect on them
1740 but may decrease the performance of the system so this option should
1741 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1744 If unsure, please say Y.
1745 endif # CPU_LOONGSON2F
1747 config SYS_SUPPORTS_ZBOOT
1749 select HAVE_KERNEL_GZIP
1750 select HAVE_KERNEL_BZIP2
1751 select HAVE_KERNEL_LZ4
1752 select HAVE_KERNEL_LZMA
1753 select HAVE_KERNEL_LZO
1754 select HAVE_KERNEL_XZ
1756 config SYS_SUPPORTS_ZBOOT_UART16550
1758 select SYS_SUPPORTS_ZBOOT
1760 config CPU_LOONGSON2
1762 select CPU_SUPPORTS_32BIT_KERNEL
1763 select CPU_SUPPORTS_64BIT_KERNEL
1764 select CPU_SUPPORTS_HIGHMEM
1765 select CPU_SUPPORTS_HUGEPAGES
1767 config CPU_LOONGSON1
1771 select CPU_HAS_PREFETCH
1772 select CPU_SUPPORTS_32BIT_KERNEL
1773 select CPU_SUPPORTS_HIGHMEM
1774 select CPU_SUPPORTS_CPUFREQ
1776 config CPU_BMIPS32_3300
1777 select SMP_UP if SMP
1780 config CPU_BMIPS4350
1782 select SYS_SUPPORTS_SMP
1783 select SYS_SUPPORTS_HOTPLUG_CPU
1785 config CPU_BMIPS4380
1787 select MIPS_L1_CACHE_SHIFT_6
1788 select SYS_SUPPORTS_SMP
1789 select SYS_SUPPORTS_HOTPLUG_CPU
1791 config CPU_BMIPS5000
1793 select MIPS_CPU_SCACHE
1794 select MIPS_L1_CACHE_SHIFT_7
1795 select SYS_SUPPORTS_SMP
1796 select SYS_SUPPORTS_HOTPLUG_CPU
1798 config SYS_HAS_CPU_LOONGSON3
1800 select CPU_SUPPORTS_CPUFREQ
1802 config SYS_HAS_CPU_LOONGSON2E
1805 config SYS_HAS_CPU_LOONGSON2F
1807 select CPU_SUPPORTS_CPUFREQ
1808 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1809 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1811 config SYS_HAS_CPU_LOONGSON1B
1814 config SYS_HAS_CPU_MIPS32_R1
1817 config SYS_HAS_CPU_MIPS32_R2
1820 config SYS_HAS_CPU_MIPS32_R3_5
1823 config SYS_HAS_CPU_MIPS32_R5
1826 config SYS_HAS_CPU_MIPS32_R6
1829 config SYS_HAS_CPU_MIPS64_R1
1832 config SYS_HAS_CPU_MIPS64_R2
1835 config SYS_HAS_CPU_MIPS64_R6
1838 config SYS_HAS_CPU_R3000
1841 config SYS_HAS_CPU_TX39XX
1844 config SYS_HAS_CPU_VR41XX
1847 config SYS_HAS_CPU_R4300
1850 config SYS_HAS_CPU_R4X00
1853 config SYS_HAS_CPU_TX49XX
1856 config SYS_HAS_CPU_R5000
1859 config SYS_HAS_CPU_R5432
1862 config SYS_HAS_CPU_R5500
1865 config SYS_HAS_CPU_R6000
1868 config SYS_HAS_CPU_NEVADA
1871 config SYS_HAS_CPU_R8000
1874 config SYS_HAS_CPU_R10000
1877 config SYS_HAS_CPU_RM7000
1880 config SYS_HAS_CPU_SB1
1883 config SYS_HAS_CPU_CAVIUM_OCTEON
1886 config SYS_HAS_CPU_BMIPS
1889 config SYS_HAS_CPU_BMIPS32_3300
1891 select SYS_HAS_CPU_BMIPS
1893 config SYS_HAS_CPU_BMIPS4350
1895 select SYS_HAS_CPU_BMIPS
1897 config SYS_HAS_CPU_BMIPS4380
1899 select SYS_HAS_CPU_BMIPS
1901 config SYS_HAS_CPU_BMIPS5000
1903 select SYS_HAS_CPU_BMIPS
1905 config SYS_HAS_CPU_XLR
1908 config SYS_HAS_CPU_XLP
1911 config MIPS_MALTA_PM
1912 depends on MIPS_MALTA
1918 # CPU may reorder R->R, R->W, W->R, W->W
1919 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1921 config WEAK_ORDERING
1925 # CPU may reorder reads and writes beyond LL/SC
1926 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1928 config WEAK_REORDERING_BEYOND_LLSC
1933 # These two indicate any level of the MIPS32 and MIPS64 architecture
1937 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1941 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1944 # These two indicate the revision of the architecture, either Release 1 or Release 2
1948 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1952 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1957 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1966 config SYS_SUPPORTS_32BIT_KERNEL
1968 config SYS_SUPPORTS_64BIT_KERNEL
1970 config CPU_SUPPORTS_32BIT_KERNEL
1972 config CPU_SUPPORTS_64BIT_KERNEL
1974 config CPU_SUPPORTS_CPUFREQ
1976 config CPU_SUPPORTS_ADDRWINCFG
1978 config CPU_SUPPORTS_HUGEPAGES
1980 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1982 config MIPS_PGD_C0_CONTEXT
1984 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1987 # Set to y for ptrace access to watch registers.
1989 config HARDWARE_WATCHPOINTS
1991 default y if CPU_MIPSR1 || CPU_MIPSR2
1996 prompt "Kernel code model"
1998 You should only select this option if you have a workload that
1999 actually benefits from 64-bit processing or if your machine has
2000 large memory. You will only be presented a single option in this
2001 menu if your system does not support both 32-bit and 64-bit kernels.
2004 bool "32-bit kernel"
2005 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2008 Select this option if you want to build a 32-bit kernel.
2011 bool "64-bit kernel"
2012 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2014 Select this option if you want to build a 64-bit kernel.
2019 bool "KVM Guest Kernel"
2020 depends on BROKEN_ON_SMP
2022 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
2024 config KVM_GUEST_TIMER_FREQ
2025 int "Count/Compare Timer Frequency (MHz)"
2026 depends on KVM_GUEST
2029 Set this to non-zero if building a guest kernel for KVM to skip RTC
2030 emulation when determining guest CPU Frequency. Instead, the guest's
2031 timer frequency is specified directly.
2034 prompt "Kernel page size"
2035 default PAGE_SIZE_4KB
2037 config PAGE_SIZE_4KB
2039 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2041 This option select the standard 4kB Linux page size. On some
2042 R3000-family processors this is the only available page size. Using
2043 4kB page size will minimize memory consumption and is therefore
2044 recommended for low memory systems.
2046 config PAGE_SIZE_8KB
2048 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2050 Using 8kB page size will result in higher performance kernel at
2051 the price of higher memory consumption. This option is available
2052 only on R8000 and cnMIPS processors. Note that you will need a
2053 suitable Linux distribution to support this.
2055 config PAGE_SIZE_16KB
2057 depends on !CPU_R3000 && !CPU_TX39XX
2059 Using 16kB page size will result in higher performance kernel at
2060 the price of higher memory consumption. This option is available on
2061 all non-R3000 family processors. Note that you will need a suitable
2062 Linux distribution to support this.
2064 config PAGE_SIZE_32KB
2066 depends on CPU_CAVIUM_OCTEON
2068 Using 32kB page size will result in higher performance kernel at
2069 the price of higher memory consumption. This option is available
2070 only on cnMIPS cores. Note that you will need a suitable Linux
2071 distribution to support this.
2073 config PAGE_SIZE_64KB
2075 depends on !CPU_R3000 && !CPU_TX39XX
2077 Using 64kB page size will result in higher performance kernel at
2078 the price of higher memory consumption. This option is available on
2079 all non-R3000 family processor. Not that at the time of this
2080 writing this option is still high experimental.
2084 config FORCE_MAX_ZONEORDER
2085 int "Maximum zone order"
2086 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2087 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2088 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2089 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2090 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2091 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2095 The kernel memory allocator divides physically contiguous memory
2096 blocks into "zones", where each zone is a power of two number of
2097 pages. This option selects the largest power of two that the kernel
2098 keeps in the memory allocator. If you need to allocate very large
2099 blocks of physically contiguous memory, then you may need to
2100 increase this value.
2102 This config option is actually maximum order plus one. For example,
2103 a value of 11 means that the largest free memory block is 2^10 pages.
2105 The page size is not necessarily 4KB. Keep this in mind
2106 when choosing a value for this option.
2111 config IP22_CPU_SCACHE
2116 # Support for a MIPS32 / MIPS64 style S-caches
2118 config MIPS_CPU_SCACHE
2122 config R5000_CPU_SCACHE
2126 config RM7000_CPU_SCACHE
2130 config SIBYTE_DMA_PAGEOPS
2131 bool "Use DMA to clear/copy pages"
2134 Instead of using the CPU to zero and copy pages, use a Data Mover
2135 channel. These DMA channels are otherwise unused by the standard
2136 SiByte Linux port. Seems to give a small performance benefit.
2138 config CPU_HAS_PREFETCH
2141 config CPU_GENERIC_DUMP_TLB
2143 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
2147 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2149 config CPU_R4K_CACHE_TLB
2151 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2154 bool "MIPS MT SMP support (1 TC on each available VPE)"
2155 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
2156 select CPU_MIPSR2_IRQ_VI
2157 select CPU_MIPSR2_IRQ_EI
2159 select MIPS_GIC_IPI if MIPS_GIC
2163 select SYS_SUPPORTS_SMP
2164 select SYS_SUPPORTS_SCHED_SMT
2165 select MIPS_PERF_SHARED_TC_COUNTERS
2167 This is a kernel model which is known as SMVP. This is supported
2168 on cores with the MT ASE and uses the available VPEs to implement
2169 virtual processors which supports SMP. This is equivalent to the
2170 Intel Hyperthreading feature. For further information go to
2171 <http://www.imgtec.com/mips/mips-multithreading.asp>.
2177 bool "SMT (multithreading) scheduler support"
2178 depends on SYS_SUPPORTS_SCHED_SMT
2181 SMT scheduler support improves the CPU scheduler's decision making
2182 when dealing with MIPS MT enabled cores at a cost of slightly
2183 increased overhead in some places. If unsure say N here.
2185 config SYS_SUPPORTS_SCHED_SMT
2188 config SYS_SUPPORTS_MULTITHREADING
2191 config MIPS_MT_FPAFF
2192 bool "Dynamic FPU affinity for FP-intensive threads"
2194 depends on MIPS_MT_SMP
2196 config MIPSR2_TO_R6_EMULATOR
2197 bool "MIPS R2-to-R6 emulator"
2198 depends on CPU_MIPSR6 && !SMP
2201 Choose this option if you want to run non-R6 MIPS userland code.
2202 Even if you say 'Y' here, the emulator will still be disabled by
2203 default. You can enable it using the 'mipsr2emu' kernel option.
2204 The only reason this is a build-time option is to save ~14K from the
2206 comment "MIPS R2-to-R6 emulator is only available for UP kernels"
2207 depends on SMP && CPU_MIPSR6
2209 config MIPS_VPE_LOADER
2210 bool "VPE loader support."
2211 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2212 select CPU_MIPSR2_IRQ_VI
2213 select CPU_MIPSR2_IRQ_EI
2216 Includes a loader for loading an elf relocatable object
2217 onto another VPE and running it.
2219 config MIPS_VPE_LOADER_CMP
2222 depends on MIPS_VPE_LOADER && MIPS_CMP
2224 config MIPS_VPE_LOADER_MT
2227 depends on MIPS_VPE_LOADER && !MIPS_CMP
2229 config MIPS_VPE_LOADER_TOM
2230 bool "Load VPE program into memory hidden from linux"
2231 depends on MIPS_VPE_LOADER
2234 The loader can use memory that is present but has been hidden from
2235 Linux using the kernel command line option "mem=xxMB". It's up to
2236 you to ensure the amount you put in the option and the space your
2237 program requires is less or equal to the amount physically present.
2239 config MIPS_VPE_APSP_API
2240 bool "Enable support for AP/SP API (RTLX)"
2241 depends on MIPS_VPE_LOADER
2244 config MIPS_VPE_APSP_API_CMP
2247 depends on MIPS_VPE_APSP_API && MIPS_CMP
2249 config MIPS_VPE_APSP_API_MT
2252 depends on MIPS_VPE_APSP_API && !MIPS_CMP
2255 bool "MIPS CMP framework support (DEPRECATED)"
2256 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2257 select MIPS_GIC_IPI if MIPS_GIC
2260 select SYS_SUPPORTS_SMP
2261 select WEAK_ORDERING
2264 Select this if you are using a bootloader which implements the "CMP
2265 framework" protocol (ie. YAMON) and want your kernel to make use of
2266 its ability to start secondary CPUs.
2268 Unless you have a specific need, you should use CONFIG_MIPS_CPS
2272 bool "MIPS Coherent Processing System support"
2273 depends on SYS_SUPPORTS_MIPS_CPS && !CPU_MIPSR6
2276 select MIPS_CPS_PM if HOTPLUG_CPU
2277 select MIPS_GIC_IPI if MIPS_GIC
2279 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2280 select SYS_SUPPORTS_HOTPLUG_CPU
2281 select SYS_SUPPORTS_SMP
2282 select WEAK_ORDERING
2284 Select this if you wish to run an SMP kernel across multiple cores
2285 within a MIPS Coherent Processing System. When this option is
2286 enabled the kernel will probe for other cores and boot them with
2287 no external assistance. It is safe to enable this when hardware
2288 support is unavailable.
2305 config SB1_PASS_2_WORKAROUNDS
2307 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2310 config SB1_PASS_2_1_WORKAROUNDS
2312 depends on CPU_SB1 && CPU_SB1_PASS_2
2316 config ARCH_PHYS_ADDR_T_64BIT
2320 prompt "SmartMIPS or microMIPS ASE support"
2322 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2325 Select this if you want neither microMIPS nor SmartMIPS support
2327 config CPU_HAS_SMARTMIPS
2328 depends on SYS_SUPPORTS_SMARTMIPS
2331 SmartMIPS is a extension of the MIPS32 architecture aimed at
2332 increased security at both hardware and software level for
2333 smartcards. Enabling this option will allow proper use of the
2334 SmartMIPS instructions by Linux applications. However a kernel with
2335 this option will not work on a MIPS core without SmartMIPS core. If
2336 you don't know you probably don't have SmartMIPS and should say N
2339 config CPU_MICROMIPS
2340 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2343 When this option is enabled the kernel will be built using the
2349 bool "Support for the MIPS SIMD Architecture"
2350 depends on CPU_SUPPORTS_MSA
2351 depends on 64BIT || MIPS_O32_FP64_SUPPORT
2353 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2354 and a set of SIMD instructions to operate on them. When this option
2355 is enabled the kernel will support allocating & switching MSA
2356 vector register contexts. If you know that your kernel will only be
2357 running on CPUs which do not support MSA or that your userland will
2358 not be making use of it then you may wish to say N here to reduce
2359 the size & complexity of your kernel.
2370 # Vectored interrupt mode is an R2 feature
2372 config CPU_MIPSR2_IRQ_VI
2376 # Extended interrupt mode is an R2 feature
2378 config CPU_MIPSR2_IRQ_EI
2383 depends on !CPU_R3000
2389 config CPU_DADDI_WORKAROUNDS
2392 config CPU_R4000_WORKAROUNDS
2394 select CPU_R4400_WORKAROUNDS
2396 config CPU_R4400_WORKAROUNDS
2400 # - Highmem only makes sense for the 32-bit kernel.
2401 # - The current highmem code will only work properly on physically indexed
2402 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2403 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2404 # moment we protect the user and offer the highmem option only on machines
2405 # where it's known to be safe. This will not offer highmem on a few systems
2406 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2407 # indexed CPUs but we're playing safe.
2408 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2409 # know they might have memory configurations that could make use of highmem
2413 bool "High Memory Support"
2414 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2416 config CPU_SUPPORTS_HIGHMEM
2419 config SYS_SUPPORTS_HIGHMEM
2422 config SYS_SUPPORTS_SMARTMIPS
2425 config SYS_SUPPORTS_MICROMIPS
2428 config SYS_SUPPORTS_MIPS16
2431 This option must be set if a kernel might be executed on a MIPS16-
2432 enabled CPU even if MIPS16 is not actually being used. In other
2433 words, it makes the kernel MIPS16-tolerant.
2435 config CPU_SUPPORTS_MSA
2438 config ARCH_FLATMEM_ENABLE
2440 depends on !NUMA && !CPU_LOONGSON2
2442 config ARCH_DISCONTIGMEM_ENABLE
2444 default y if SGI_IP27
2446 Say Y to support efficient handling of discontiguous physical memory,
2447 for architectures which are either NUMA (Non-Uniform Memory Access)
2448 or have huge holes in the physical address space for other reasons.
2449 See <file:Documentation/vm/numa> for more.
2451 config ARCH_SPARSEMEM_ENABLE
2453 select SPARSEMEM_STATIC
2457 depends on SYS_SUPPORTS_NUMA
2459 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2460 Access). This option improves performance on systems with more
2461 than two nodes; on two node systems it is generally better to
2462 leave it disabled; on single node systems disable this option
2465 config SYS_SUPPORTS_NUMA
2471 depends on NEED_MULTIPLE_NODES
2473 config HW_PERF_EVENTS
2474 bool "Enable hardware performance counter support for perf events"
2475 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2478 Enable hardware performance counter support for perf events. If
2479 disabled, perf events will use software events only.
2484 bool "Multi-Processing support"
2485 depends on SYS_SUPPORTS_SMP
2487 This enables support for systems with more than one CPU. If you have
2488 a system with only one CPU, say N. If you have a system with more
2489 than one CPU, say Y.
2491 If you say N here, the kernel will run on uni- and multiprocessor
2492 machines, but will use only one CPU of a multiprocessor machine. If
2493 you say Y here, the kernel will run on many, but not all,
2494 uniprocessor machines. On a uniprocessor machine, the kernel
2495 will run faster if you say N here.
2497 People using multiprocessor machines who say Y here should also say
2498 Y to "Enhanced Real Time Clock Support", below.
2500 See also the SMP-HOWTO available at
2501 <http://www.tldp.org/docs.html#howto>.
2503 If you don't know what to do here, say N.
2508 config SYS_SUPPORTS_MIPS_CMP
2511 config SYS_SUPPORTS_MIPS_CPS
2514 config SYS_SUPPORTS_SMP
2517 config NR_CPUS_DEFAULT_4
2520 config NR_CPUS_DEFAULT_8
2523 config NR_CPUS_DEFAULT_16
2526 config NR_CPUS_DEFAULT_32
2529 config NR_CPUS_DEFAULT_64
2533 int "Maximum number of CPUs (2-256)"
2536 default "4" if NR_CPUS_DEFAULT_4
2537 default "8" if NR_CPUS_DEFAULT_8
2538 default "16" if NR_CPUS_DEFAULT_16
2539 default "32" if NR_CPUS_DEFAULT_32
2540 default "64" if NR_CPUS_DEFAULT_64
2542 This allows you to specify the maximum number of CPUs which this
2543 kernel will support. The maximum supported value is 32 for 32-bit
2544 kernel and 64 for 64-bit kernels; the minimum value which makes
2545 sense is 1 for Qemu (useful only for kernel debugging purposes)
2546 and 2 for all others.
2548 This is purely to save memory - each supported CPU adds
2549 approximately eight kilobytes to the kernel image. For best
2550 performance should round up your number of processors to the next
2553 config MIPS_PERF_SHARED_TC_COUNTERS
2557 # Timer Interrupt Frequency Configuration
2561 prompt "Timer frequency"
2564 Allows the configuration of the timer frequency.
2567 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2570 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2573 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2576 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2579 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2582 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2585 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2588 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2592 config SYS_SUPPORTS_24HZ
2595 config SYS_SUPPORTS_48HZ
2598 config SYS_SUPPORTS_100HZ
2601 config SYS_SUPPORTS_128HZ
2604 config SYS_SUPPORTS_250HZ
2607 config SYS_SUPPORTS_256HZ
2610 config SYS_SUPPORTS_1000HZ
2613 config SYS_SUPPORTS_1024HZ
2616 config SYS_SUPPORTS_ARBIT_HZ
2618 default y if !SYS_SUPPORTS_24HZ && \
2619 !SYS_SUPPORTS_48HZ && \
2620 !SYS_SUPPORTS_100HZ && \
2621 !SYS_SUPPORTS_128HZ && \
2622 !SYS_SUPPORTS_250HZ && \
2623 !SYS_SUPPORTS_256HZ && \
2624 !SYS_SUPPORTS_1000HZ && \
2625 !SYS_SUPPORTS_1024HZ
2631 default 100 if HZ_100
2632 default 128 if HZ_128
2633 default 250 if HZ_250
2634 default 256 if HZ_256
2635 default 1000 if HZ_1000
2636 default 1024 if HZ_1024
2639 def_bool HIGH_RES_TIMERS
2641 source "kernel/Kconfig.preempt"
2644 bool "Kexec system call"
2647 kexec is a system call that implements the ability to shutdown your
2648 current kernel, and to start another kernel. It is like a reboot
2649 but it is independent of the system firmware. And like a reboot
2650 you can start any kernel with it, not just Linux.
2652 The name comes from the similarity to the exec system call.
2654 It is an ongoing process to be certain the hardware in a machine
2655 is properly shutdown, so do not be surprised if this code does not
2656 initially work for you. As of this writing the exact hardware
2657 interface is strongly in flux, so no good recommendation can be
2661 bool "Kernel crash dumps"
2663 Generate crash dump after being started by kexec.
2664 This should be normally only set in special crash dump kernels
2665 which are loaded in the main kernel with kexec-tools into
2666 a specially reserved region and then later executed after
2667 a crash by kdump/kexec. The crash dump kernel must be compiled
2668 to a memory address not used by the main kernel or firmware using
2671 config PHYSICAL_START
2672 hex "Physical address where the kernel is loaded"
2673 default "0xffffffff84000000" if 64BIT
2674 default "0x84000000" if 32BIT
2675 depends on CRASH_DUMP
2677 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2678 If you plan to use kernel for capturing the crash dump change
2679 this value to start of the reserved region (the "X" value as
2680 specified in the "crashkernel=YM@XM" command line boot parameter
2681 passed to the panic-ed kernel).
2684 bool "Enable seccomp to safely compute untrusted bytecode"
2688 This kernel feature is useful for number crunching applications
2689 that may need to compute untrusted bytecode during their
2690 execution. By using pipes or other transports made available to
2691 the process as file descriptors supporting the read/write
2692 syscalls, it's possible to isolate those applications in
2693 their own address space using seccomp. Once seccomp is
2694 enabled via /proc/<pid>/seccomp, it cannot be disabled
2695 and the task is only allowed to execute a few safe syscalls
2696 defined by each seccomp mode.
2698 If unsure, say Y. Only embedded should say N here.
2700 config MIPS_O32_FP64_SUPPORT
2701 bool "Support for O32 binaries using 64-bit FP"
2702 depends on 32BIT || MIPS32_O32
2704 When this is enabled, the kernel will support use of 64-bit floating
2705 point registers with binaries using the O32 ABI along with the
2706 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2707 32-bit MIPS systems this support is at the cost of increasing the
2708 size and complexity of the compiled FPU emulator. Thus if you are
2709 running a MIPS32 system and know that none of your userland binaries
2710 will require 64-bit floating point, you may wish to reduce the size
2711 of your kernel & potentially improve FP emulation performance by
2714 Although binutils currently supports use of this flag the details
2715 concerning its effect upon the O32 ABI in userland are still being
2716 worked on. In order to avoid userland becoming dependant upon current
2717 behaviour before the details have been finalised, this option should
2718 be considered experimental and only enabled by those working upon
2726 select OF_EARLY_FLATTREE
2733 prompt "Kernel appended dtb support" if USE_OF
2734 default MIPS_NO_APPENDED_DTB
2736 config MIPS_NO_APPENDED_DTB
2739 Do not enable appended dtb support.
2741 config MIPS_ELF_APPENDED_DTB
2744 With this option, the boot code will look for a device tree binary
2745 DTB) included in the vmlinux ELF section .appended_dtb. By default
2746 it is empty and the DTB can be appended using binutils command
2749 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2751 This is meant as a backward compatiblity convenience for those
2752 systems with a bootloader that can't be upgraded to accommodate
2753 the documented boot protocol using a device tree.
2755 config MIPS_RAW_APPENDED_DTB
2758 With this option, the boot code will look for a device tree binary
2759 DTB) appended to raw vmlinux.bin (without decompressor).
2760 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2762 This is meant as a backward compatibility convenience for those
2763 systems with a bootloader that can't be upgraded to accommodate
2764 the documented boot protocol using a device tree.
2766 Beware that there is very little in terms of protection against
2767 this option being confused by leftover garbage in memory that might
2768 look like a DTB header after a reboot if no actual DTB is appended
2769 to vmlinux.bin. Do not leave this option active in a production kernel
2770 if you don't intend to always append a DTB.
2772 config MIPS_ZBOOT_APPENDED_DTB
2774 depends on SYS_SUPPORTS_ZBOOT
2776 With this option, the boot code will look for a device tree binary
2777 DTB) appended to raw vmlinuz.bin (with decompressor).
2778 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb).
2780 This is meant as a backward compatibility convenience for those
2781 systems with a bootloader that can't be upgraded to accommodate
2782 the documented boot protocol using a device tree.
2784 Beware that there is very little in terms of protection against
2785 this option being confused by leftover garbage in memory that might
2786 look like a DTB header after a reboot if no actual DTB is appended
2787 to vmlinuz.bin. Do not leave this option active in a production kernel
2788 if you don't intend to always append a DTB.
2792 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
2793 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
2794 !MIPS_MALTA && !MIPS_SEAD3 && \
2796 default MIPS_CMDLINE_FROM_BOOTLOADER
2798 config MIPS_CMDLINE_FROM_DTB
2800 bool "Dtb kernel arguments if available"
2802 config MIPS_CMDLINE_DTB_EXTEND
2804 bool "Extend dtb kernel arguments with bootloader arguments"
2806 config MIPS_CMDLINE_FROM_BOOTLOADER
2807 bool "Bootloader kernel arguments if available"
2812 config LOCKDEP_SUPPORT
2816 config STACKTRACE_SUPPORT
2820 config HAVE_LATENCYTOP_SUPPORT
2824 config PGTABLE_LEVELS
2826 default 3 if 64BIT && !PAGE_SIZE_64KB
2829 source "init/Kconfig"
2831 source "kernel/Kconfig.freezer"
2833 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2841 bool "Support for PCI controller"
2842 depends on HW_HAS_PCI
2844 select NO_GENERIC_PCI_IOPORT_MAP
2846 Find out whether you have a PCI motherboard. PCI is the name of a
2847 bus system, i.e. the way the CPU talks to the other stuff inside
2848 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2852 bool "Support for HT-linked PCI"
2854 depends on CPU_LOONGSON3
2858 Loongson family machines use Hyper-Transport bus for inter-core
2859 connection and device connection. The PCI bus is a subordinate
2860 linked at HT. Choose Y for Loongson-3 based machines.
2865 source "drivers/pci/Kconfig"
2867 source "drivers/pci/pcie/Kconfig"
2870 # ISA support is now enabled via select. Too many systems still have the one
2871 # or other ISA chip on the board that users don't know about so don't expect
2872 # users to choose the right thing ...
2879 depends on HW_HAS_EISA
2881 select GENERIC_ISA_DMA
2883 The Extended Industry Standard Architecture (EISA) bus was
2884 developed as an open alternative to the IBM MicroChannel bus.
2886 The EISA bus provided some of the features of the IBM MicroChannel
2887 bus while maintaining backward compatibility with cards made for
2888 the older ISA bus. The EISA bus saw limited use between 1988 and
2889 1995 when it was made obsolete by the PCI bus.
2891 Say Y here if you are building a kernel for an EISA-based machine.
2895 source "drivers/eisa/Kconfig"
2898 bool "TURBOchannel support"
2899 depends on MACH_DECSTATION
2901 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2902 processors. TURBOchannel programming specifications are available
2904 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2906 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2907 Linux driver support status is documented at:
2908 <http://www.linux-mips.org/wiki/DECstation>
2918 select MIPS_EXTERNAL_TIMER
2926 source "drivers/pcmcia/Kconfig"
2928 source "drivers/pci/hotplug/Kconfig"
2931 tristate "RapidIO support"
2935 If you say Y here, the kernel will include drivers and
2936 infrastructure code to support RapidIO interconnect devices.
2938 source "drivers/rapidio/Kconfig"
2942 menu "Executable file formats"
2944 source "fs/Kconfig.binfmt"
2949 config MIPS32_COMPAT
2955 config SYSVIPC_COMPAT
2959 bool "Kernel support for o32 binaries"
2961 select ARCH_WANT_OLD_COMPAT_IPC
2963 select MIPS32_COMPAT
2964 select SYSVIPC_COMPAT if SYSVIPC
2966 Select this option if you want to run o32 binaries. These are pure
2967 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2968 existing binaries are in this format.
2973 bool "Kernel support for n32 binaries"
2976 select MIPS32_COMPAT
2977 select SYSVIPC_COMPAT if SYSVIPC
2979 Select this option if you want to run n32 binaries. These are
2980 64-bit binaries using 32-bit quantities for addressing and certain
2981 data that would normally be 64-bit. They are used in special
2988 default y if MIPS32_O32 || MIPS32_N32
2992 menu "Power management options"
2994 config ARCH_HIBERNATION_POSSIBLE
2996 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2998 config ARCH_SUSPEND_POSSIBLE
3000 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3002 source "kernel/power/Kconfig"
3006 config MIPS_EXTERNAL_TIMER
3009 menu "CPU Power Management"
3011 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3012 source "drivers/cpufreq/Kconfig"
3015 source "drivers/cpuidle/Kconfig"
3019 source "net/Kconfig"
3021 source "drivers/Kconfig"
3023 source "drivers/firmware/Kconfig"
3027 source "arch/mips/Kconfig.debug"
3029 source "security/Kconfig"
3031 source "crypto/Kconfig"
3033 source "lib/Kconfig"
3035 source "arch/mips/kvm/Kconfig"