4 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
19 select HAVE_KRETPROBES
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select RTC_LIB if !MACH_LOONGSON
22 select GENERIC_ATOMIC64 if !64BIT
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
25 select HAVE_DMA_API_DEBUG
26 select HAVE_GENERIC_HARDIRQS
27 select GENERIC_IRQ_PROBE
28 select GENERIC_IRQ_SHOW
29 select HAVE_ARCH_JUMP_LABEL
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select IRQ_FORCED_THREADING
33 select HAVE_MEMBLOCK_NODE_MAP
34 select ARCH_DISCARD_MEMBLOCK
35 select GENERIC_SMP_IDLE_THREAD
36 select BUILDTIME_EXTABLE_SORT
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_CMOS_UPDATE
40 menu "Machine selection"
50 bool "Alchemy processor based machines"
51 select 64BIT_PHYS_ADDR
55 select SYS_HAS_CPU_MIPS32_R1
56 select SYS_SUPPORTS_32BIT_KERNEL
57 select SYS_SUPPORTS_APM_EMULATION
59 select ARCH_WANT_OPTIONAL_GPIOLIB
60 select SYS_SUPPORTS_ZBOOT
61 select USB_ARCH_HAS_OHCI
62 select USB_ARCH_HAS_EHCI
65 bool "Texas Instruments AR7"
67 select DMA_NONCOHERENT
73 select SYS_HAS_CPU_MIPS32_R1
74 select SYS_HAS_EARLY_PRINTK
75 select SYS_SUPPORTS_32BIT_KERNEL
76 select SYS_SUPPORTS_LITTLE_ENDIAN
77 select SYS_SUPPORTS_ZBOOT_UART16550
78 select ARCH_REQUIRE_GPIOLIB
82 Support for the Texas Instruments AR7 System-on-a-Chip
83 family: TNETD7100, 7200 and 7300.
86 bool "Atheros AR71XX/AR724X/AR913X based boards"
87 select ARCH_REQUIRE_GPIOLIB
91 select DMA_NONCOHERENT
95 select SYS_HAS_CPU_MIPS32_R2
96 select SYS_HAS_EARLY_PRINTK
97 select SYS_SUPPORTS_32BIT_KERNEL
98 select SYS_SUPPORTS_BIG_ENDIAN
100 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
103 bool "Broadcom BCM47XX based boards"
106 select DMA_NONCOHERENT
109 select SYS_SUPPORTS_32BIT_KERNEL
110 select SYS_SUPPORTS_LITTLE_ENDIAN
112 select SYS_HAS_EARLY_PRINTK
115 Support for BCM47XX based boards
118 bool "Broadcom BCM63XX based boards"
121 select DMA_NONCOHERENT
123 select SYS_HAS_CPU_MIPS32_R1
124 select SYS_SUPPORTS_32BIT_KERNEL
125 select SYS_SUPPORTS_BIG_ENDIAN
126 select SYS_HAS_EARLY_PRINTK
128 select ARCH_REQUIRE_GPIOLIB
131 Support for BCM63XX based boards
138 select DMA_NONCOHERENT
144 select PCI_GT64XXX_PCI0
146 select SYS_HAS_CPU_NEVADA
147 select SYS_HAS_EARLY_PRINTK
148 select SYS_SUPPORTS_32BIT_KERNEL
149 select SYS_SUPPORTS_64BIT_KERNEL
150 select SYS_SUPPORTS_LITTLE_ENDIAN
152 config MACH_DECSTATION
159 select CPU_DADDI_WORKAROUNDS if 64BIT
160 select CPU_R4000_WORKAROUNDS if 64BIT
161 select CPU_R4400_WORKAROUNDS if 64BIT
162 select DMA_NONCOHERENT
165 select SYS_HAS_CPU_R3000
166 select SYS_HAS_CPU_R4X00
167 select SYS_SUPPORTS_32BIT_KERNEL
168 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
169 select SYS_SUPPORTS_LITTLE_ENDIAN
170 select SYS_SUPPORTS_128HZ
171 select SYS_SUPPORTS_256HZ
172 select SYS_SUPPORTS_1024HZ
174 This enables support for DEC's MIPS based workstations. For details
175 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
176 DECstation porting pages on <http://decstation.unix-ag.org/>.
178 If you have one of the following DECstation Models you definitely
179 want to choose R4xx0 for the CPU Type:
186 otherwise choose R3000.
189 bool "Jazz family of machines"
192 select ARCH_MAY_HAVE_PC_FDC
195 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
196 select GENERIC_ISA_DMA
197 select HAVE_PCSPKR_PLATFORM
202 select SYS_HAS_CPU_R4X00
203 select SYS_SUPPORTS_32BIT_KERNEL
204 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
205 select SYS_SUPPORTS_100HZ
207 This a family of machines based on the MIPS R4030 chipset which was
208 used by several vendors to build RISC/os and Windows NT workstations.
209 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
210 Olivetti M700-10 workstations.
213 bool "Ingenic JZ4740 based machines"
214 select SYS_HAS_CPU_MIPS32_R1
215 select SYS_SUPPORTS_32BIT_KERNEL
216 select SYS_SUPPORTS_LITTLE_ENDIAN
217 select SYS_SUPPORTS_ZBOOT_UART16550
218 select DMA_NONCOHERENT
221 select ARCH_REQUIRE_GPIOLIB
222 select SYS_HAS_EARLY_PRINTK
225 select GENERIC_IRQ_CHIP
228 bool "Lantiq based platforms"
229 select DMA_NONCOHERENT
233 select SYS_HAS_CPU_MIPS32_R1
234 select SYS_HAS_CPU_MIPS32_R2
235 select SYS_SUPPORTS_BIG_ENDIAN
236 select SYS_SUPPORTS_32BIT_KERNEL
237 select SYS_SUPPORTS_MULTITHREADING
238 select SYS_HAS_EARLY_PRINTK
239 select ARCH_REQUIRE_GPIOLIB
242 select HAVE_MACH_CLKDEV
247 bool "LASAT Networks platforms"
250 select DMA_NONCOHERENT
251 select SYS_HAS_EARLY_PRINTK
254 select PCI_GT64XXX_PCI0
256 select R5000_CPU_SCACHE
257 select SYS_HAS_CPU_R5000
258 select SYS_SUPPORTS_32BIT_KERNEL
259 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
260 select SYS_SUPPORTS_LITTLE_ENDIAN
263 bool "Loongson family of machines"
264 select SYS_SUPPORTS_ZBOOT
266 This enables the support of Loongson family of machines.
268 Loongson is a family of general-purpose MIPS-compatible CPUs.
269 developed at Institute of Computing Technology (ICT),
270 Chinese Academy of Sciences (CAS) in the People's Republic
271 of China. The chief architect is Professor Weiwu Hu.
273 config MACH_LOONGSON1
274 bool "Loongson 1 family of machines"
275 select SYS_SUPPORTS_ZBOOT
277 This enables support for the Loongson 1 based machines.
279 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
280 the ICT (Institute of Computing Technology) and the Chinese Academy
284 bool "MIPS Malta board"
285 select ARCH_MAY_HAVE_PC_FDC
290 select DMA_NONCOHERENT
291 select GENERIC_ISA_DMA
292 select HAVE_PCSPKR_PLATFORM
298 select MIPS_BOARDS_GEN
300 select MIPS_CPU_SCACHE
301 select PCI_GT64XXX_PCI0
304 select SYS_HAS_CPU_MIPS32_R1
305 select SYS_HAS_CPU_MIPS32_R2
306 select SYS_HAS_CPU_MIPS64_R1
307 select SYS_HAS_CPU_MIPS64_R2
308 select SYS_HAS_CPU_NEVADA
309 select SYS_HAS_CPU_RM7000
310 select SYS_HAS_EARLY_PRINTK
311 select SYS_SUPPORTS_32BIT_KERNEL
312 select SYS_SUPPORTS_64BIT_KERNEL
313 select SYS_SUPPORTS_BIG_ENDIAN
314 select SYS_SUPPORTS_LITTLE_ENDIAN
315 select SYS_SUPPORTS_MIPS_CMP
316 select SYS_SUPPORTS_MULTITHREADING
317 select SYS_SUPPORTS_SMARTMIPS
318 select SYS_SUPPORTS_ZBOOT
320 This enables support for the MIPS Technologies Malta evaluation
324 bool "NEC EMMA2RH Mark-eins board"
328 This enables support for the NEC Electronics Mark-eins boards.
331 bool "NEC VR4100 series based machines"
334 select SYS_HAS_CPU_VR41XX
335 select ARCH_REQUIRE_GPIOLIB
338 bool "NXP STB220 board"
341 Support for NXP Semiconductors STB220 Development Board.
348 Support for NXP Semiconductors STB225 Development Board.
351 bool "NXP PNX8550 based JBS board"
353 select SYS_SUPPORTS_LITTLE_ENDIAN
355 config PNX8550_STB810
356 bool "NXP PNX8550 based STB810 board"
358 select SYS_SUPPORTS_LITTLE_ENDIAN
361 bool "PMC-Sierra MSP chipsets"
362 depends on EXPERIMENTAL
365 select DMA_NONCOHERENT
367 select NO_EXCEPT_FILL
369 select SYS_HAS_CPU_MIPS32_R1
370 select SYS_HAS_CPU_MIPS32_R2
371 select SYS_SUPPORTS_32BIT_KERNEL
372 select SYS_SUPPORTS_BIG_ENDIAN
375 select SERIAL_8250_CONSOLE
377 This adds support for the PMC-Sierra family of Multi-Service
378 Processor System-On-A-Chips. These parts include a number
379 of integrated peripherals, interfaces and DSPs in addition to
380 a variety of MIPS cores.
383 bool "PMC-Sierra Yosemite eval board"
392 select SYS_HAS_CPU_RM9000
393 select SYS_HAS_EARLY_PRINTK
394 select SYS_SUPPORTS_32BIT_KERNEL
395 select SYS_SUPPORTS_64BIT_KERNEL
396 select SYS_SUPPORTS_BIG_ENDIAN
397 select SYS_SUPPORTS_HIGHMEM
398 select SYS_SUPPORTS_SMP
400 Yosemite is an evaluation board for the RM9000x2 processor
401 manufactured by PMC-Sierra.
407 select CPU_MIPSR2_IRQ_VI
408 select CPU_MIPSR2_IRQ_EI
410 select DMA_NONCOHERENT
412 select SYS_HAS_EARLY_PRINTK
413 select SYS_HAS_CPU_MIPS32_R2
414 select SYS_SUPPORTS_32BIT_KERNEL
415 select SYS_SUPPORTS_BIG_ENDIAN
416 select SYS_SUPPORTS_HIGHMEM
417 select USB_OHCI_LITTLE_ENDIAN
419 This enables support for the Cisco PowerTV Platform.
422 bool "SGI IP22 (Indy/Indigo2)"
428 select DEFAULT_SGI_PARTITION
429 select DMA_NONCOHERENT
433 select IP22_CPU_SCACHE
435 select GENERIC_ISA_DMA_SUPPORT_BROKEN
437 select SGI_HAS_INDYDOG
443 select SYS_HAS_CPU_R4X00
444 select SYS_HAS_CPU_R5000
446 # Disable EARLY_PRINTK for now since it leads to overwritten prom
447 # memory during early boot on some machines.
449 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
450 # for a more details discussion
452 # select SYS_HAS_EARLY_PRINTK
453 select SYS_SUPPORTS_32BIT_KERNEL
454 select SYS_SUPPORTS_64BIT_KERNEL
455 select SYS_SUPPORTS_BIG_ENDIAN
457 This are the SGI Indy, Challenge S and Indigo2, as well as certain
458 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
459 that runs on these, say Y here.
462 bool "SGI IP27 (Origin200/2000)"
466 select DEFAULT_SGI_PARTITION
468 select SYS_HAS_EARLY_PRINTK
470 select NR_CPUS_DEFAULT_64
471 select SYS_HAS_CPU_R10000
472 select SYS_SUPPORTS_64BIT_KERNEL
473 select SYS_SUPPORTS_BIG_ENDIAN
474 select SYS_SUPPORTS_NUMA
475 select SYS_SUPPORTS_SMP
477 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
478 workstations. To compile a Linux kernel that runs on these, say Y
482 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
483 depends on EXPERIMENTAL
489 select DEFAULT_SGI_PARTITION
490 select DMA_NONCOHERENT
491 select GENERIC_ISA_DMA_SUPPORT_BROKEN
497 select SGI_HAS_INDYDOG
503 select SYS_HAS_CPU_R10000
505 # Disable EARLY_PRINTK for now since it leads to overwritten prom
506 # memory during early boot on some machines.
508 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
509 # for a more details discussion
511 # select SYS_HAS_EARLY_PRINTK
512 select SYS_SUPPORTS_64BIT_KERNEL
513 select SYS_SUPPORTS_BIG_ENDIAN
515 This is the SGI Indigo2 with R10000 processor. To compile a Linux
516 kernel that runs on these, say Y here.
525 select DMA_NONCOHERENT
528 select R5000_CPU_SCACHE
529 select RM7000_CPU_SCACHE
530 select SYS_HAS_CPU_R5000
531 select SYS_HAS_CPU_R10000 if BROKEN
532 select SYS_HAS_CPU_RM7000
533 select SYS_HAS_CPU_NEVADA
534 select SYS_SUPPORTS_64BIT_KERNEL
535 select SYS_SUPPORTS_BIG_ENDIAN
537 If you want this kernel to run on SGI O2 workstation, say Y here.
540 bool "Sibyte BCM91120C-CRhine"
541 depends on EXPERIMENTAL
544 select SIBYTE_BCM1120
546 select SYS_HAS_CPU_SB1
547 select SYS_SUPPORTS_BIG_ENDIAN
548 select SYS_SUPPORTS_LITTLE_ENDIAN
551 bool "Sibyte BCM91120x-Carmel"
552 depends on EXPERIMENTAL
555 select SIBYTE_BCM1120
557 select SYS_HAS_CPU_SB1
558 select SYS_SUPPORTS_BIG_ENDIAN
559 select SYS_SUPPORTS_LITTLE_ENDIAN
562 bool "Sibyte BCM91125C-CRhone"
563 depends on EXPERIMENTAL
566 select SIBYTE_BCM1125
568 select SYS_HAS_CPU_SB1
569 select SYS_SUPPORTS_BIG_ENDIAN
570 select SYS_SUPPORTS_HIGHMEM
571 select SYS_SUPPORTS_LITTLE_ENDIAN
574 bool "Sibyte BCM91125E-Rhone"
575 depends on EXPERIMENTAL
578 select SIBYTE_BCM1125H
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_LITTLE_ENDIAN
585 bool "Sibyte BCM91250A-SWARM"
588 select HAVE_PATA_PLATFORM
589 select NR_CPUS_DEFAULT_2
592 select SYS_HAS_CPU_SB1
593 select SYS_SUPPORTS_BIG_ENDIAN
594 select SYS_SUPPORTS_HIGHMEM
595 select SYS_SUPPORTS_LITTLE_ENDIAN
596 select ZONE_DMA32 if 64BIT
598 config SIBYTE_LITTLESUR
599 bool "Sibyte BCM91250C2-LittleSur"
600 depends on EXPERIMENTAL
603 select HAVE_PATA_PLATFORM
604 select NR_CPUS_DEFAULT_2
607 select SYS_HAS_CPU_SB1
608 select SYS_SUPPORTS_BIG_ENDIAN
609 select SYS_SUPPORTS_HIGHMEM
610 select SYS_SUPPORTS_LITTLE_ENDIAN
612 config SIBYTE_SENTOSA
613 bool "Sibyte BCM91250E-Sentosa"
614 depends on EXPERIMENTAL
617 select NR_CPUS_DEFAULT_2
620 select SYS_HAS_CPU_SB1
621 select SYS_SUPPORTS_BIG_ENDIAN
622 select SYS_SUPPORTS_LITTLE_ENDIAN
625 bool "Sibyte BCM91480B-BigSur"
628 select NR_CPUS_DEFAULT_4
629 select SIBYTE_BCM1x80
631 select SYS_HAS_CPU_SB1
632 select SYS_SUPPORTS_BIG_ENDIAN
633 select SYS_SUPPORTS_HIGHMEM
634 select SYS_SUPPORTS_LITTLE_ENDIAN
635 select ZONE_DMA32 if 64BIT
638 bool "SNI RM200/300/400"
639 select ARC if CPU_LITTLE_ENDIAN
640 select ARC32 if CPU_LITTLE_ENDIAN
641 select SNIPROM if CPU_BIG_ENDIAN
642 select ARCH_MAY_HAVE_PC_FDC
646 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
647 select DMA_NONCOHERENT
648 select GENERIC_ISA_DMA
649 select HAVE_PCSPKR_PLATFORM
656 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
657 select SYS_HAS_CPU_R4X00
658 select SYS_HAS_CPU_R5000
659 select SYS_HAS_CPU_R10000
660 select R5000_CPU_SCACHE
661 select SYS_HAS_EARLY_PRINTK
662 select SYS_SUPPORTS_32BIT_KERNEL
663 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
664 select SYS_SUPPORTS_BIG_ENDIAN
665 select SYS_SUPPORTS_HIGHMEM
666 select SYS_SUPPORTS_LITTLE_ENDIAN
668 The SNI RM200/300/400 are MIPS-based machines manufactured by
669 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
670 Technology and now in turn merged with Fujitsu. Say Y here to
671 support this machine type.
674 bool "Toshiba TX39 series based machines"
677 bool "Toshiba TX49 series based machines"
679 config MIKROTIK_RB532
680 bool "Mikrotik RB532 boards"
683 select DMA_NONCOHERENT
686 select SYS_HAS_CPU_MIPS32_R1
687 select SYS_SUPPORTS_32BIT_KERNEL
688 select SYS_SUPPORTS_LITTLE_ENDIAN
691 select ARCH_REQUIRE_GPIOLIB
693 Support the Mikrotik(tm) RouterBoard 532 series,
694 based on the IDT RC32434 SoC.
697 bool "Wind River PPMC board"
702 select DMA_NONCOHERENT
704 select PCI_GT64XXX_PCI0
706 select SYS_HAS_CPU_MIPS32_R1
707 select SYS_HAS_CPU_MIPS32_R2
708 select SYS_HAS_CPU_MIPS64_R1
709 select SYS_HAS_CPU_NEVADA
710 select SYS_HAS_CPU_RM7000
711 select SYS_SUPPORTS_32BIT_KERNEL
712 select SYS_SUPPORTS_64BIT_KERNEL
713 select SYS_SUPPORTS_BIG_ENDIAN
714 select SYS_SUPPORTS_LITTLE_ENDIAN
716 This enables support for the Wind River MIPS32 4KC PPMC evaluation
717 board, which is based on GT64120 bridge chip.
719 config CAVIUM_OCTEON_SIMULATOR
720 bool "Cavium Networks Octeon Simulator"
722 select 64BIT_PHYS_ADDR
724 select SYS_SUPPORTS_64BIT_KERNEL
725 select SYS_SUPPORTS_BIG_ENDIAN
726 select SYS_SUPPORTS_HOTPLUG_CPU
727 select SYS_HAS_CPU_CAVIUM_OCTEON
730 The Octeon simulator is software performance model of the Cavium
731 Octeon Processor. It supports simulating Octeon processors on x86
734 config CAVIUM_OCTEON_REFERENCE_BOARD
735 bool "Cavium Networks Octeon reference board"
737 select 64BIT_PHYS_ADDR
739 select SYS_SUPPORTS_64BIT_KERNEL
740 select SYS_SUPPORTS_BIG_ENDIAN
741 select SYS_SUPPORTS_HOTPLUG_CPU
742 select SYS_HAS_EARLY_PRINTK
743 select SYS_HAS_CPU_CAVIUM_OCTEON
746 select ARCH_SUPPORTS_MSI
748 select USB_ARCH_HAS_OHCI
749 select USB_ARCH_HAS_EHCI
752 This option supports all of the Octeon reference boards from Cavium
753 Networks. It builds a kernel that dynamically determines the Octeon
754 CPU type and supports all known board reference implementations.
755 Some of the supported boards are:
762 Say Y here for most Octeon reference boards.
765 bool "Netlogic XLR/XLS based systems"
766 depends on EXPERIMENTAL
769 select SYS_HAS_CPU_XLR
770 select SYS_SUPPORTS_SMP
773 select SYS_SUPPORTS_32BIT_KERNEL
774 select SYS_SUPPORTS_64BIT_KERNEL
775 select 64BIT_PHYS_ADDR
776 select SYS_SUPPORTS_BIG_ENDIAN
777 select SYS_SUPPORTS_HIGHMEM
779 select NR_CPUS_DEFAULT_32
783 select ARCH_SUPPORTS_MSI
784 select ZONE_DMA if 64BIT
786 select SYS_HAS_EARLY_PRINTK
787 select USB_ARCH_HAS_OHCI if USB_SUPPORT
788 select USB_ARCH_HAS_EHCI if USB_SUPPORT
790 Support for systems based on Netlogic XLR and XLS processors.
791 Say Y here if you have a XLR or XLS based board.
794 bool "Netlogic XLP based systems"
795 depends on EXPERIMENTAL
798 select SYS_HAS_CPU_XLP
799 select SYS_SUPPORTS_SMP
801 select SYS_SUPPORTS_32BIT_KERNEL
802 select SYS_SUPPORTS_64BIT_KERNEL
803 select 64BIT_PHYS_ADDR
804 select SYS_SUPPORTS_BIG_ENDIAN
805 select SYS_SUPPORTS_LITTLE_ENDIAN
806 select SYS_SUPPORTS_HIGHMEM
808 select NR_CPUS_DEFAULT_32
812 select ZONE_DMA if 64BIT
814 select SYS_HAS_EARLY_PRINTK
816 This board is based on Netlogic XLP Processor.
817 Say Y here if you have a XLP based board.
821 source "arch/mips/alchemy/Kconfig"
822 source "arch/mips/ath79/Kconfig"
823 source "arch/mips/bcm47xx/Kconfig"
824 source "arch/mips/bcm63xx/Kconfig"
825 source "arch/mips/jazz/Kconfig"
826 source "arch/mips/jz4740/Kconfig"
827 source "arch/mips/lantiq/Kconfig"
828 source "arch/mips/lasat/Kconfig"
829 source "arch/mips/pmc-sierra/Kconfig"
830 source "arch/mips/powertv/Kconfig"
831 source "arch/mips/sgi-ip27/Kconfig"
832 source "arch/mips/sibyte/Kconfig"
833 source "arch/mips/txx9/Kconfig"
834 source "arch/mips/vr41xx/Kconfig"
835 source "arch/mips/cavium-octeon/Kconfig"
836 source "arch/mips/loongson/Kconfig"
837 source "arch/mips/loongson1/Kconfig"
838 source "arch/mips/netlogic/Kconfig"
842 config RWSEM_GENERIC_SPINLOCK
846 config RWSEM_XCHGADD_ALGORITHM
849 config ARCH_HAS_ILOG2_U32
853 config ARCH_HAS_ILOG2_U64
857 config GENERIC_HWEIGHT
861 config GENERIC_CALIBRATE_DELAY
865 config SCHED_OMIT_FRAME_POINTER
870 # Select some configuration options automatically based on user selections.
875 config ARCH_MAY_HAVE_PC_FDC
924 select ARCH_REQUIRE_GPIOLIB
930 config ARCH_DMA_ADDR_T_64BIT
931 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
936 config DMA_NONCOHERENT
938 select NEED_DMA_MAP_STATE
940 config NEED_DMA_MAP_STATE
943 config SYS_HAS_EARLY_PRINTK
947 bool "Support for hot-pluggable CPUs"
948 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
950 Say Y here to allow turning CPUs off and on. CPUs can be
951 controlled through /sys/devices/system/cpu.
952 (Note: power management support will enable this option
953 automatically on SMP systems. )
954 Say N if you want to disable CPU hotplug.
956 config SYS_SUPPORTS_HOTPLUG_CPU
971 config MIPS_DISABLE_OBSOLETE_IDE
983 config GENERIC_ISA_DMA
985 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
988 config GENERIC_ISA_DMA_SUPPORT_BROKEN
990 select GENERIC_ISA_DMA
1002 # Endianness selection. Sufficiently obscure so many users don't know what to
1003 # answer,so we try hard to limit the available choices. Also the use of a
1004 # choice statement should be more obvious to the user.
1007 prompt "Endianness selection"
1009 Some MIPS machines can be configured for either little or big endian
1010 byte order. These modes require different kernels and a different
1011 Linux distribution. In general there is one preferred byteorder for a
1012 particular system but some systems are just as commonly used in the
1013 one or the other endianness.
1015 config CPU_BIG_ENDIAN
1017 depends on SYS_SUPPORTS_BIG_ENDIAN
1019 config CPU_LITTLE_ENDIAN
1020 bool "Little endian"
1021 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1029 config SYS_SUPPORTS_APM_EMULATION
1032 config SYS_SUPPORTS_BIG_ENDIAN
1035 config SYS_SUPPORTS_LITTLE_ENDIAN
1038 config SYS_SUPPORTS_HUGETLBFS
1040 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1067 config MIPS_BOARDS_GEN
1070 config PCI_GT64XXX_PCI0
1073 config NO_EXCEPT_FILL
1078 select SERIAL_RM9000
1084 select DMA_NONCOHERENT
1086 select SWAP_IO_SPACE
1087 select SYS_HAS_CPU_R5500
1088 select SYS_SUPPORTS_32BIT_KERNEL
1089 select SYS_SUPPORTS_64BIT_KERNEL
1090 select SYS_SUPPORTS_BIG_ENDIAN
1097 select DMA_NONCOHERENT
1098 select SYS_HAS_CPU_MIPS32_R2
1099 select SYS_SUPPORTS_32BIT_KERNEL
1100 select SYS_SUPPORTS_LITTLE_ENDIAN
1101 select SYS_SUPPORTS_BIG_ENDIAN
1103 select CPU_MIPSR2_IRQ_VI
1115 select DMA_NONCOHERENT
1117 select SYS_HAS_CPU_MIPS32_R1
1118 select SYS_HAS_EARLY_PRINTK
1119 select SYS_SUPPORTS_32BIT_KERNEL
1122 config SWAP_IO_SPACE
1125 config SERIAL_RM9000
1128 config SGI_HAS_INDYDOG
1140 config SGI_HAS_ZILOG
1143 config SGI_HAS_I8042
1146 config DEFAULT_SGI_PARTITION
1158 config MIPS_L1_CACHE_SHIFT
1160 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1161 default "6" if MIPS_CPU_SCACHE
1162 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1165 config HAVE_STD_PC_SERIAL_PORT
1169 bool "ARC console support"
1170 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1174 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1179 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1188 menu "CPU selection"
1194 config CPU_LOONGSON2E
1196 depends on SYS_HAS_CPU_LOONGSON2E
1197 select CPU_LOONGSON2
1199 The Loongson 2E processor implements the MIPS III instruction set
1200 with many extensions.
1202 It has an internal FPGA northbridge, which is compatible to
1205 config CPU_LOONGSON2F
1207 depends on SYS_HAS_CPU_LOONGSON2F
1208 select CPU_LOONGSON2
1210 select ARCH_REQUIRE_GPIOLIB
1212 The Loongson 2F processor implements the MIPS III instruction set
1213 with many extensions.
1215 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1216 have a similar programming interface with FPGA northbridge used in
1219 config CPU_LOONGSON1B
1221 depends on SYS_HAS_CPU_LOONGSON1B
1222 select CPU_LOONGSON1
1224 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1225 release 2 instruction set.
1227 config CPU_MIPS32_R1
1228 bool "MIPS32 Release 1"
1229 depends on SYS_HAS_CPU_MIPS32_R1
1230 select CPU_HAS_PREFETCH
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1234 Choose this option to build a kernel for release 1 or later of the
1235 MIPS32 architecture. Most modern embedded systems with a 32-bit
1236 MIPS processor are based on a MIPS32 processor. If you know the
1237 specific type of processor in your system, choose those that one
1238 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1239 Release 2 of the MIPS32 architecture is available since several
1240 years so chances are you even have a MIPS32 Release 2 processor
1241 in which case you should choose CPU_MIPS32_R2 instead for better
1244 config CPU_MIPS32_R2
1245 bool "MIPS32 Release 2"
1246 depends on SYS_HAS_CPU_MIPS32_R2
1247 select CPU_HAS_PREFETCH
1248 select CPU_SUPPORTS_32BIT_KERNEL
1249 select CPU_SUPPORTS_HIGHMEM
1251 Choose this option to build a kernel for release 2 or later of the
1252 MIPS32 architecture. Most modern embedded systems with a 32-bit
1253 MIPS processor are based on a MIPS32 processor. If you know the
1254 specific type of processor in your system, choose those that one
1255 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1257 config CPU_MIPS64_R1
1258 bool "MIPS64 Release 1"
1259 depends on SYS_HAS_CPU_MIPS64_R1
1260 select CPU_HAS_PREFETCH
1261 select CPU_SUPPORTS_32BIT_KERNEL
1262 select CPU_SUPPORTS_64BIT_KERNEL
1263 select CPU_SUPPORTS_HIGHMEM
1264 select CPU_SUPPORTS_HUGEPAGES
1266 Choose this option to build a kernel for release 1 or later of the
1267 MIPS64 architecture. Many modern embedded systems with a 64-bit
1268 MIPS processor are based on a MIPS64 processor. If you know the
1269 specific type of processor in your system, choose those that one
1270 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1271 Release 2 of the MIPS64 architecture is available since several
1272 years so chances are you even have a MIPS64 Release 2 processor
1273 in which case you should choose CPU_MIPS64_R2 instead for better
1276 config CPU_MIPS64_R2
1277 bool "MIPS64 Release 2"
1278 depends on SYS_HAS_CPU_MIPS64_R2
1279 select CPU_HAS_PREFETCH
1280 select CPU_SUPPORTS_32BIT_KERNEL
1281 select CPU_SUPPORTS_64BIT_KERNEL
1282 select CPU_SUPPORTS_HIGHMEM
1283 select CPU_SUPPORTS_HUGEPAGES
1285 Choose this option to build a kernel for release 2 or later of the
1286 MIPS64 architecture. Many modern embedded systems with a 64-bit
1287 MIPS processor are based on a MIPS64 processor. If you know the
1288 specific type of processor in your system, choose those that one
1289 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1293 depends on SYS_HAS_CPU_R3000
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_HIGHMEM
1298 Please make sure to pick the right CPU type. Linux/MIPS is not
1299 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1300 *not* work on R4000 machines and vice versa. However, since most
1301 of the supported machines have an R4000 (or similar) CPU, R4x00
1302 might be a safe bet. If the resulting kernel does not work,
1303 try to recompile with R3000.
1307 depends on SYS_HAS_CPU_TX39XX
1308 select CPU_SUPPORTS_32BIT_KERNEL
1312 depends on SYS_HAS_CPU_VR41XX
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1316 The options selects support for the NEC VR4100 series of processors.
1317 Only choose this option if you have one of these processors as a
1318 kernel built with this option will not run on any other type of
1319 processor or vice versa.
1323 depends on SYS_HAS_CPU_R4300
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1327 MIPS Technologies R4300-series processors.
1331 depends on SYS_HAS_CPU_R4X00
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_64BIT_KERNEL
1335 MIPS Technologies R4000-series processors other than 4300, including
1336 the R4000, R4400, R4600, and 4700.
1340 depends on SYS_HAS_CPU_TX49XX
1341 select CPU_HAS_PREFETCH
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1347 depends on SYS_HAS_CPU_R5000
1348 select CPU_SUPPORTS_32BIT_KERNEL
1349 select CPU_SUPPORTS_64BIT_KERNEL
1351 MIPS Technologies R5000-series processors other than the Nevada.
1355 depends on SYS_HAS_CPU_R5432
1356 select CPU_SUPPORTS_32BIT_KERNEL
1357 select CPU_SUPPORTS_64BIT_KERNEL
1361 depends on SYS_HAS_CPU_R5500
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1366 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1371 depends on EXPERIMENTAL
1372 depends on SYS_HAS_CPU_R6000
1373 select CPU_SUPPORTS_32BIT_KERNEL
1375 MIPS Technologies R6000 and R6000A series processors. Note these
1376 processors are extremely rare and the support for them is incomplete.
1380 depends on SYS_HAS_CPU_NEVADA
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1384 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1388 depends on EXPERIMENTAL
1389 depends on SYS_HAS_CPU_R8000
1390 select CPU_HAS_PREFETCH
1391 select CPU_SUPPORTS_64BIT_KERNEL
1393 MIPS Technologies R8000 processors. Note these processors are
1394 uncommon and the support for them is incomplete.
1398 depends on SYS_HAS_CPU_R10000
1399 select CPU_HAS_PREFETCH
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_64BIT_KERNEL
1402 select CPU_SUPPORTS_HIGHMEM
1404 MIPS Technologies R10000-series processors.
1408 depends on SYS_HAS_CPU_RM7000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1416 depends on SYS_HAS_CPU_RM9000
1417 select CPU_HAS_PREFETCH
1418 select CPU_SUPPORTS_32BIT_KERNEL
1419 select CPU_SUPPORTS_64BIT_KERNEL
1420 select CPU_SUPPORTS_HIGHMEM
1421 select WEAK_ORDERING
1425 depends on SYS_HAS_CPU_SB1
1426 select CPU_SUPPORTS_32BIT_KERNEL
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select CPU_SUPPORTS_HIGHMEM
1429 select WEAK_ORDERING
1431 config CPU_CAVIUM_OCTEON
1432 bool "Cavium Octeon processor"
1433 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1434 select ARCH_SPARSEMEM_ENABLE
1435 select CPU_HAS_PREFETCH
1436 select CPU_SUPPORTS_64BIT_KERNEL
1437 select SYS_SUPPORTS_SMP
1438 select NR_CPUS_DEFAULT_16
1439 select WEAK_ORDERING
1440 select CPU_SUPPORTS_HIGHMEM
1441 select CPU_SUPPORTS_HUGEPAGES
1445 The Cavium Octeon processor is a highly integrated chip containing
1446 many ethernet hardware widgets for networking tasks. The processor
1447 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1448 Full details can be found at http://www.caviumnetworks.com.
1450 config CPU_BMIPS3300
1452 depends on SYS_HAS_CPU_BMIPS3300
1455 Broadcom BMIPS3300 processors.
1457 config CPU_BMIPS4350
1459 depends on SYS_HAS_CPU_BMIPS4350
1461 select SYS_SUPPORTS_SMP
1462 select SYS_SUPPORTS_HOTPLUG_CPU
1464 Broadcom BMIPS4350 ("VIPER") processors.
1466 config CPU_BMIPS4380
1468 depends on SYS_HAS_CPU_BMIPS4380
1470 select SYS_SUPPORTS_SMP
1471 select SYS_SUPPORTS_HOTPLUG_CPU
1473 Broadcom BMIPS4380 processors.
1475 config CPU_BMIPS5000
1477 depends on SYS_HAS_CPU_BMIPS5000
1479 select CPU_SUPPORTS_HIGHMEM
1480 select MIPS_CPU_SCACHE
1481 select SYS_SUPPORTS_SMP
1482 select SYS_SUPPORTS_HOTPLUG_CPU
1484 Broadcom BMIPS5000 processors.
1487 bool "Netlogic XLR SoC"
1488 depends on SYS_HAS_CPU_XLR
1489 select CPU_SUPPORTS_32BIT_KERNEL
1490 select CPU_SUPPORTS_64BIT_KERNEL
1491 select CPU_SUPPORTS_HIGHMEM
1492 select WEAK_ORDERING
1493 select WEAK_REORDERING_BEYOND_LLSC
1494 select CPU_SUPPORTS_HUGEPAGES
1496 Netlogic Microsystems XLR/XLS processors.
1499 bool "Netlogic XLP SoC"
1500 depends on SYS_HAS_CPU_XLP
1501 select CPU_SUPPORTS_32BIT_KERNEL
1502 select CPU_SUPPORTS_64BIT_KERNEL
1503 select CPU_SUPPORTS_HIGHMEM
1505 select WEAK_ORDERING
1506 select WEAK_REORDERING_BEYOND_LLSC
1507 select CPU_HAS_PREFETCH
1509 Netlogic Microsystems XLP processors.
1513 config CPU_NOP_WORKAROUNDS
1516 config CPU_JUMP_WORKAROUNDS
1519 config CPU_LOONGSON2F_WORKAROUNDS
1520 bool "Loongson 2F Workarounds"
1522 select CPU_NOP_WORKAROUNDS
1523 select CPU_JUMP_WORKAROUNDS
1525 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1526 require workarounds. Without workarounds the system may hang
1527 unexpectedly. For more information please refer to the gas
1528 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1530 Loongson 2F03 and later have fixed these issues and no workarounds
1531 are needed. The workarounds have no significant side effect on them
1532 but may decrease the performance of the system so this option should
1533 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1536 If unsure, please say Y.
1537 endif # CPU_LOONGSON2F
1539 config SYS_SUPPORTS_ZBOOT
1541 select HAVE_KERNEL_GZIP
1542 select HAVE_KERNEL_BZIP2
1543 select HAVE_KERNEL_LZMA
1544 select HAVE_KERNEL_LZO
1546 config SYS_SUPPORTS_ZBOOT_UART16550
1548 select SYS_SUPPORTS_ZBOOT
1550 config CPU_LOONGSON2
1552 select CPU_SUPPORTS_32BIT_KERNEL
1553 select CPU_SUPPORTS_64BIT_KERNEL
1554 select CPU_SUPPORTS_HIGHMEM
1556 config CPU_LOONGSON1
1560 select CPU_HAS_PREFETCH
1561 select CPU_SUPPORTS_32BIT_KERNEL
1562 select CPU_SUPPORTS_HIGHMEM
1567 select CPU_SUPPORTS_32BIT_KERNEL
1568 select DMA_NONCOHERENT
1570 select SWAP_IO_SPACE
1571 select WEAK_ORDERING
1573 config SYS_HAS_CPU_LOONGSON2E
1576 config SYS_HAS_CPU_LOONGSON2F
1578 select CPU_SUPPORTS_CPUFREQ
1579 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1580 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1582 config SYS_HAS_CPU_LOONGSON1B
1585 config SYS_HAS_CPU_MIPS32_R1
1588 config SYS_HAS_CPU_MIPS32_R2
1591 config SYS_HAS_CPU_MIPS64_R1
1594 config SYS_HAS_CPU_MIPS64_R2
1597 config SYS_HAS_CPU_R3000
1600 config SYS_HAS_CPU_TX39XX
1603 config SYS_HAS_CPU_VR41XX
1606 config SYS_HAS_CPU_R4300
1609 config SYS_HAS_CPU_R4X00
1612 config SYS_HAS_CPU_TX49XX
1615 config SYS_HAS_CPU_R5000
1618 config SYS_HAS_CPU_R5432
1621 config SYS_HAS_CPU_R5500
1624 config SYS_HAS_CPU_R6000
1627 config SYS_HAS_CPU_NEVADA
1630 config SYS_HAS_CPU_R8000
1633 config SYS_HAS_CPU_R10000
1636 config SYS_HAS_CPU_RM7000
1639 config SYS_HAS_CPU_RM9000
1642 config SYS_HAS_CPU_SB1
1645 config SYS_HAS_CPU_CAVIUM_OCTEON
1648 config SYS_HAS_CPU_BMIPS3300
1651 config SYS_HAS_CPU_BMIPS4350
1654 config SYS_HAS_CPU_BMIPS4380
1657 config SYS_HAS_CPU_BMIPS5000
1660 config SYS_HAS_CPU_XLR
1663 config SYS_HAS_CPU_XLP
1667 # CPU may reorder R->R, R->W, W->R, W->W
1668 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1670 config WEAK_ORDERING
1674 # CPU may reorder reads and writes beyond LL/SC
1675 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1677 config WEAK_REORDERING_BEYOND_LLSC
1682 # These two indicate any level of the MIPS32 and MIPS64 architecture
1686 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1690 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1693 # These two indicate the revision of the architecture, either Release 1 or Release 2
1697 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1701 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1703 config SYS_SUPPORTS_32BIT_KERNEL
1705 config SYS_SUPPORTS_64BIT_KERNEL
1707 config CPU_SUPPORTS_32BIT_KERNEL
1709 config CPU_SUPPORTS_64BIT_KERNEL
1711 config CPU_SUPPORTS_CPUFREQ
1713 config CPU_SUPPORTS_ADDRWINCFG
1715 config CPU_SUPPORTS_HUGEPAGES
1717 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1719 config MIPS_PGD_C0_CONTEXT
1721 default y if 64BIT && CPU_MIPSR2
1724 # Set to y for ptrace access to watch registers.
1726 config HARDWARE_WATCHPOINTS
1728 default y if CPU_MIPSR1 || CPU_MIPSR2
1734 prompt "Kernel code model"
1736 You should only select this option if you have a workload that
1737 actually benefits from 64-bit processing or if your machine has
1738 large memory. You will only be presented a single option in this
1739 menu if your system does not support both 32-bit and 64-bit kernels.
1742 bool "32-bit kernel"
1743 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1746 Select this option if you want to build a 32-bit kernel.
1748 bool "64-bit kernel"
1749 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1750 select HAVE_SYSCALL_WRAPPERS
1752 Select this option if you want to build a 64-bit kernel.
1757 prompt "Kernel page size"
1758 default PAGE_SIZE_4KB
1760 config PAGE_SIZE_4KB
1762 depends on !CPU_LOONGSON2
1764 This option select the standard 4kB Linux page size. On some
1765 R3000-family processors this is the only available page size. Using
1766 4kB page size will minimize memory consumption and is therefore
1767 recommended for low memory systems.
1769 config PAGE_SIZE_8KB
1771 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1773 Using 8kB page size will result in higher performance kernel at
1774 the price of higher memory consumption. This option is available
1775 only on R8000 and cnMIPS processors. Note that you will need a
1776 suitable Linux distribution to support this.
1778 config PAGE_SIZE_16KB
1780 depends on !CPU_R3000 && !CPU_TX39XX
1782 Using 16kB page size will result in higher performance kernel at
1783 the price of higher memory consumption. This option is available on
1784 all non-R3000 family processors. Note that you will need a suitable
1785 Linux distribution to support this.
1787 config PAGE_SIZE_32KB
1789 depends on CPU_CAVIUM_OCTEON
1791 Using 32kB page size will result in higher performance kernel at
1792 the price of higher memory consumption. This option is available
1793 only on cnMIPS cores. Note that you will need a suitable Linux
1794 distribution to support this.
1796 config PAGE_SIZE_64KB
1798 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1800 Using 64kB page size will result in higher performance kernel at
1801 the price of higher memory consumption. This option is available on
1802 all non-R3000 family processor. Not that at the time of this
1803 writing this option is still high experimental.
1807 config FORCE_MAX_ZONEORDER
1808 int "Maximum zone order"
1809 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1810 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1811 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1812 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1813 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1814 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1818 The kernel memory allocator divides physically contiguous memory
1819 blocks into "zones", where each zone is a power of two number of
1820 pages. This option selects the largest power of two that the kernel
1821 keeps in the memory allocator. If you need to allocate very large
1822 blocks of physically contiguous memory, then you may need to
1823 increase this value.
1825 This config option is actually maximum order plus one. For example,
1826 a value of 11 means that the largest free memory block is 2^10 pages.
1828 The page size is not necessarily 4KB. Keep this in mind
1829 when choosing a value for this option.
1834 config IP22_CPU_SCACHE
1839 # Support for a MIPS32 / MIPS64 style S-caches
1841 config MIPS_CPU_SCACHE
1845 config R5000_CPU_SCACHE
1849 config RM7000_CPU_SCACHE
1853 config SIBYTE_DMA_PAGEOPS
1854 bool "Use DMA to clear/copy pages"
1857 Instead of using the CPU to zero and copy pages, use a Data Mover
1858 channel. These DMA channels are otherwise unused by the standard
1859 SiByte Linux port. Seems to give a small performance benefit.
1861 config CPU_HAS_PREFETCH
1865 prompt "MIPS MT options"
1867 config MIPS_MT_DISABLED
1868 bool "Disable multithreading support."
1870 Use this option if your workload can't take advantage of
1871 MIPS hardware multithreading support. On systems that don't have
1872 the option of an MT-enabled processor this option will be the only
1873 option in this menu.
1876 bool "Use 1 TC on each available VPE for SMP"
1877 depends on SYS_SUPPORTS_MULTITHREADING
1878 select CPU_MIPSR2_IRQ_VI
1879 select CPU_MIPSR2_IRQ_EI
1881 select NR_CPUS_DEFAULT_2
1883 select SYS_SUPPORTS_SCHED_SMT if SMP
1884 select SYS_SUPPORTS_SMP
1887 This is a kernel model which is known a VSMP but lately has been
1888 marketesed into SMVP.
1889 Virtual SMP uses the processor's VPEs to implement virtual
1890 processors. In currently available configuration of the 34K processor
1891 this allows for a dual processor. Both processors will share the same
1892 primary caches; each will obtain the half of the TLB for it's own
1893 exclusive use. For a layman this model can be described as similar to
1894 what Intel calls Hyperthreading.
1896 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1899 bool "SMTC: Use all TCs on all VPEs for SMP"
1900 depends on CPU_MIPS32_R2
1901 #depends on CPU_MIPS64_R2 # once there is hardware ...
1902 depends on SYS_SUPPORTS_MULTITHREADING
1903 select CPU_MIPSR2_IRQ_VI
1904 select CPU_MIPSR2_IRQ_EI
1906 select NR_CPUS_DEFAULT_8
1908 select SYS_SUPPORTS_SMP
1911 This is a kernel model which is known a SMTC or lately has been
1912 marketesed into SMVP.
1913 is presenting the available TC's of the core as processors to Linux.
1914 On currently available 34K processors this means a Linux system will
1915 see up to 5 processors. The implementation of the SMTC kernel differs
1916 significantly from VSMP and cannot efficiently coexist in the same
1917 kernel binary so the choice between VSMP and SMTC is a compile time
1920 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1928 bool "SMT (multithreading) scheduler support"
1929 depends on SYS_SUPPORTS_SCHED_SMT
1932 SMT scheduler support improves the CPU scheduler's decision making
1933 when dealing with MIPS MT enabled cores at a cost of slightly
1934 increased overhead in some places. If unsure say N here.
1936 config SYS_SUPPORTS_SCHED_SMT
1940 config SYS_SUPPORTS_MULTITHREADING
1943 config MIPS_MT_FPAFF
1944 bool "Dynamic FPU affinity for FP-intensive threads"
1946 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1948 config MIPS_VPE_LOADER
1949 bool "VPE loader support."
1950 depends on SYS_SUPPORTS_MULTITHREADING
1951 select CPU_MIPSR2_IRQ_VI
1952 select CPU_MIPSR2_IRQ_EI
1955 Includes a loader for loading an elf relocatable object
1956 onto another VPE and running it.
1958 config MIPS_MT_SMTC_IM_BACKSTOP
1959 bool "Use per-TC register bits as backstop for inhibited IM bits"
1960 depends on MIPS_MT_SMTC
1963 To support multiple TC microthreads acting as "CPUs" within
1964 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1965 during interrupt handling. To support legacy drivers and interrupt
1966 controller management code, SMTC has a "backstop" to track and
1967 if necessary restore the interrupt mask. This has some performance
1968 impact on interrupt service overhead.
1970 config MIPS_MT_SMTC_IRQAFF
1971 bool "Support IRQ affinity API"
1972 depends on MIPS_MT_SMTC
1975 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1976 for SMTC Linux kernel. Requires platform support, of which
1977 an example can be found in the MIPS kernel i8259 and Malta
1978 platform code. Adds some overhead to interrupt dispatch, and
1979 should be used only if you know what you are doing.
1981 config MIPS_VPE_LOADER_TOM
1982 bool "Load VPE program into memory hidden from linux"
1983 depends on MIPS_VPE_LOADER
1986 The loader can use memory that is present but has been hidden from
1987 Linux using the kernel command line option "mem=xxMB". It's up to
1988 you to ensure the amount you put in the option and the space your
1989 program requires is less or equal to the amount physically present.
1991 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1992 config MIPS_VPE_APSP_API
1993 bool "Enable support for AP/SP API (RTLX)"
1994 depends on MIPS_VPE_LOADER
1997 config MIPS_APSP_KSPD
1999 depends on MIPS_VPE_APSP_API
2002 KSPD is a kernel daemon that accepts syscall requests from the SP
2003 side, actions them and returns the results. It also handles the
2004 "exit" syscall notifying other kernel modules the SP program is
2005 exiting. You probably want to say yes here.
2008 bool "MIPS CMP framework support"
2009 depends on SYS_SUPPORTS_MIPS_CMP
2011 select SYS_SUPPORTS_SMP
2012 select SYS_SUPPORTS_SCHED_SMT if SMP
2013 select WEAK_ORDERING
2016 This is a placeholder option for the GCMP work. It will need to
2017 be handled differently...
2019 config SB1_PASS_1_WORKAROUNDS
2021 depends on CPU_SB1_PASS_1
2024 config SB1_PASS_2_WORKAROUNDS
2026 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2029 config SB1_PASS_2_1_WORKAROUNDS
2031 depends on CPU_SB1 && CPU_SB1_PASS_2
2034 config 64BIT_PHYS_ADDR
2037 config ARCH_PHYS_ADDR_T_64BIT
2038 def_bool 64BIT_PHYS_ADDR
2040 config CPU_HAS_SMARTMIPS
2041 depends on SYS_SUPPORTS_SMARTMIPS
2042 bool "Support for the SmartMIPS ASE"
2044 SmartMIPS is a extension of the MIPS32 architecture aimed at
2045 increased security at both hardware and software level for
2046 smartcards. Enabling this option will allow proper use of the
2047 SmartMIPS instructions by Linux applications. However a kernel with
2048 this option will not work on a MIPS core without SmartMIPS core. If
2049 you don't know you probably don't have SmartMIPS and should say N
2059 # Vectored interrupt mode is an R2 feature
2061 config CPU_MIPSR2_IRQ_VI
2065 # Extended interrupt mode is an R2 feature
2067 config CPU_MIPSR2_IRQ_EI
2072 depends on !CPU_R3000
2078 config CPU_DADDI_WORKAROUNDS
2081 config CPU_R4000_WORKAROUNDS
2083 select CPU_R4400_WORKAROUNDS
2085 config CPU_R4400_WORKAROUNDS
2089 # - Highmem only makes sense for the 32-bit kernel.
2090 # - The current highmem code will only work properly on physically indexed
2091 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2092 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2093 # moment we protect the user and offer the highmem option only on machines
2094 # where it's known to be safe. This will not offer highmem on a few systems
2095 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2096 # indexed CPUs but we're playing safe.
2097 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2098 # know they might have memory configurations that could make use of highmem
2102 bool "High Memory Support"
2103 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2105 config CPU_SUPPORTS_HIGHMEM
2108 config SYS_SUPPORTS_HIGHMEM
2111 config SYS_SUPPORTS_SMARTMIPS
2114 config ARCH_FLATMEM_ENABLE
2116 depends on !NUMA && !CPU_LOONGSON2
2118 config ARCH_DISCONTIGMEM_ENABLE
2120 default y if SGI_IP27
2122 Say Y to support efficient handling of discontiguous physical memory,
2123 for architectures which are either NUMA (Non-Uniform Memory Access)
2124 or have huge holes in the physical address space for other reasons.
2125 See <file:Documentation/vm/numa> for more.
2127 config ARCH_SPARSEMEM_ENABLE
2129 select SPARSEMEM_STATIC
2133 depends on SYS_SUPPORTS_NUMA
2135 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2136 Access). This option improves performance on systems with more
2137 than two nodes; on two node systems it is generally better to
2138 leave it disabled; on single node systems disable this option
2141 config SYS_SUPPORTS_NUMA
2147 depends on NEED_MULTIPLE_NODES
2149 config HW_PERF_EVENTS
2150 bool "Enable hardware performance counter support for perf events"
2151 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2154 Enable hardware performance counter support for perf events. If
2155 disabled, perf events will use software events only.
2160 bool "Multi-Processing support"
2161 depends on SYS_SUPPORTS_SMP
2163 select USE_GENERIC_SMP_HELPERS
2165 This enables support for systems with more than one CPU. If you have
2166 a system with only one CPU, like most personal computers, say N. If
2167 you have a system with more than one CPU, say Y.
2169 If you say N here, the kernel will run on single and multiprocessor
2170 machines, but will use only one CPU of a multiprocessor machine. If
2171 you say Y here, the kernel will run on many, but not all,
2172 singleprocessor machines. On a singleprocessor machine, the kernel
2173 will run faster if you say N here.
2175 People using multiprocessor machines who say Y here should also say
2176 Y to "Enhanced Real Time Clock Support", below.
2178 See also the SMP-HOWTO available at
2179 <http://www.tldp.org/docs.html#howto>.
2181 If you don't know what to do here, say N.
2186 config SYS_SUPPORTS_MIPS_CMP
2189 config SYS_SUPPORTS_SMP
2192 config NR_CPUS_DEFAULT_1
2195 config NR_CPUS_DEFAULT_2
2198 config NR_CPUS_DEFAULT_4
2201 config NR_CPUS_DEFAULT_8
2204 config NR_CPUS_DEFAULT_16
2207 config NR_CPUS_DEFAULT_32
2210 config NR_CPUS_DEFAULT_64
2214 int "Maximum number of CPUs (2-64)"
2215 range 1 64 if NR_CPUS_DEFAULT_1
2217 default "1" if NR_CPUS_DEFAULT_1
2218 default "2" if NR_CPUS_DEFAULT_2
2219 default "4" if NR_CPUS_DEFAULT_4
2220 default "8" if NR_CPUS_DEFAULT_8
2221 default "16" if NR_CPUS_DEFAULT_16
2222 default "32" if NR_CPUS_DEFAULT_32
2223 default "64" if NR_CPUS_DEFAULT_64
2225 This allows you to specify the maximum number of CPUs which this
2226 kernel will support. The maximum supported value is 32 for 32-bit
2227 kernel and 64 for 64-bit kernels; the minimum value which makes
2228 sense is 1 for Qemu (useful only for kernel debugging purposes)
2229 and 2 for all others.
2231 This is purely to save memory - each supported CPU adds
2232 approximately eight kilobytes to the kernel image. For best
2233 performance should round up your number of processors to the next
2237 # Timer Interrupt Frequency Configuration
2241 prompt "Timer frequency"
2244 Allows the configuration of the timer frequency.
2247 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2250 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2256 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2259 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2262 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2265 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2269 config SYS_SUPPORTS_48HZ
2272 config SYS_SUPPORTS_100HZ
2275 config SYS_SUPPORTS_128HZ
2278 config SYS_SUPPORTS_250HZ
2281 config SYS_SUPPORTS_256HZ
2284 config SYS_SUPPORTS_1000HZ
2287 config SYS_SUPPORTS_1024HZ
2290 config SYS_SUPPORTS_ARBIT_HZ
2292 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2293 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2294 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2295 !SYS_SUPPORTS_1024HZ
2300 default 100 if HZ_100
2301 default 128 if HZ_128
2302 default 250 if HZ_250
2303 default 256 if HZ_256
2304 default 1000 if HZ_1000
2305 default 1024 if HZ_1024
2307 source "kernel/Kconfig.preempt"
2310 bool "Kexec system call (EXPERIMENTAL)"
2311 depends on EXPERIMENTAL
2313 kexec is a system call that implements the ability to shutdown your
2314 current kernel, and to start another kernel. It is like a reboot
2315 but it is independent of the system firmware. And like a reboot
2316 you can start any kernel with it, not just Linux.
2318 The name comes from the similarity to the exec system call.
2320 It is an ongoing process to be certain the hardware in a machine
2321 is properly shutdown, so do not be surprised if this code does not
2322 initially work for you. It may help to enable device hotplugging
2323 support. As of this writing the exact hardware interface is
2324 strongly in flux, so no good recommendation can be made.
2327 bool "Enable seccomp to safely compute untrusted bytecode"
2331 This kernel feature is useful for number crunching applications
2332 that may need to compute untrusted bytecode during their
2333 execution. By using pipes or other transports made available to
2334 the process as file descriptors supporting the read/write
2335 syscalls, it's possible to isolate those applications in
2336 their own address space using seccomp. Once seccomp is
2337 enabled via /proc/<pid>/seccomp, it cannot be disabled
2338 and the task is only allowed to execute a few safe syscalls
2339 defined by each seccomp mode.
2341 If unsure, say Y. Only embedded should say N here.
2344 bool "Flattened Device Tree support"
2346 select OF_EARLY_FLATTREE
2349 Include support for flattened device tree machine descriptions.
2353 config LOCKDEP_SUPPORT
2357 config STACKTRACE_SUPPORT
2361 source "init/Kconfig"
2363 source "kernel/Kconfig.freezer"
2365 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2373 bool "Support for PCI controller"
2374 depends on HW_HAS_PCI
2376 select GENERIC_PCI_IOMAP
2377 select NO_GENERIC_PCI_IOPORT_MAP
2379 Find out whether you have a PCI motherboard. PCI is the name of a
2380 bus system, i.e. the way the CPU talks to the other stuff inside
2381 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2387 source "drivers/pci/Kconfig"
2389 source "drivers/pci/pcie/Kconfig"
2392 # ISA support is now enabled via select. Too many systems still have the one
2393 # or other ISA chip on the board that users don't know about so don't expect
2394 # users to choose the right thing ...
2401 depends on HW_HAS_EISA
2403 select GENERIC_ISA_DMA
2405 The Extended Industry Standard Architecture (EISA) bus was
2406 developed as an open alternative to the IBM MicroChannel bus.
2408 The EISA bus provided some of the features of the IBM MicroChannel
2409 bus while maintaining backward compatibility with cards made for
2410 the older ISA bus. The EISA bus saw limited use between 1988 and
2411 1995 when it was made obsolete by the PCI bus.
2413 Say Y here if you are building a kernel for an EISA-based machine.
2417 source "drivers/eisa/Kconfig"
2420 bool "TURBOchannel support"
2421 depends on MACH_DECSTATION
2423 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2424 processors. TURBOchannel programming specifications are available
2426 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2428 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2429 Linux driver support status is documented at:
2430 <http://www.linux-mips.org/wiki/DECstation>
2440 select MIPS_EXTERNAL_TIMER
2445 source "drivers/pcmcia/Kconfig"
2447 source "drivers/pci/hotplug/Kconfig"
2450 bool "RapidIO support"
2454 If you say Y here, the kernel will include drivers and
2455 infrastructure code to support RapidIO interconnect devices.
2457 source "drivers/rapidio/Kconfig"
2461 menu "Executable file formats"
2463 source "fs/Kconfig.binfmt"
2468 config MIPS32_COMPAT
2469 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2472 Select this option if you want Linux/MIPS 32-bit binary
2473 compatibility. Since all software available for Linux/MIPS is
2474 currently 32-bit you should say Y here.
2478 depends on MIPS32_COMPAT
2479 select ARCH_WANT_OLD_COMPAT_IPC
2482 config SYSVIPC_COMPAT
2484 depends on COMPAT && SYSVIPC
2488 bool "Kernel support for o32 binaries"
2489 depends on MIPS32_COMPAT
2491 Select this option if you want to run o32 binaries. These are pure
2492 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2493 existing binaries are in this format.
2498 bool "Kernel support for n32 binaries"
2499 depends on MIPS32_COMPAT
2501 Select this option if you want to run n32 binaries. These are
2502 64-bit binaries using 32-bit quantities for addressing and certain
2503 data that would normally be 64-bit. They are used in special
2510 default y if MIPS32_O32 || MIPS32_N32
2514 menu "Power management options"
2516 config ARCH_HIBERNATION_POSSIBLE
2518 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2520 config ARCH_SUSPEND_POSSIBLE
2522 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2524 source "kernel/power/Kconfig"
2528 source "arch/mips/kernel/cpufreq/Kconfig"
2530 source "net/Kconfig"
2532 source "drivers/Kconfig"
2536 source "arch/mips/Kconfig.debug"
2538 source "security/Kconfig"
2540 source "crypto/Kconfig"
2542 source "lib/Kconfig"