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
94 select SYS_HAS_CPU_MIPS32_R2
95 select SYS_HAS_EARLY_PRINTK
96 select SYS_SUPPORTS_32BIT_KERNEL
97 select SYS_SUPPORTS_BIG_ENDIAN
99 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
102 bool "Broadcom BCM47XX based boards"
105 select DMA_NONCOHERENT
108 select SYS_SUPPORTS_32BIT_KERNEL
109 select SYS_SUPPORTS_LITTLE_ENDIAN
111 select SYS_HAS_EARLY_PRINTK
114 Support for BCM47XX based boards
117 bool "Broadcom BCM63XX based boards"
120 select DMA_NONCOHERENT
122 select SYS_HAS_CPU_MIPS32_R1
123 select SYS_SUPPORTS_32BIT_KERNEL
124 select SYS_SUPPORTS_BIG_ENDIAN
125 select SYS_HAS_EARLY_PRINTK
127 select ARCH_REQUIRE_GPIOLIB
130 Support for BCM63XX based boards
137 select DMA_NONCOHERENT
143 select PCI_GT64XXX_PCI0
145 select SYS_HAS_CPU_NEVADA
146 select SYS_HAS_EARLY_PRINTK
147 select SYS_SUPPORTS_32BIT_KERNEL
148 select SYS_SUPPORTS_64BIT_KERNEL
149 select SYS_SUPPORTS_LITTLE_ENDIAN
151 config MACH_DECSTATION
158 select CPU_DADDI_WORKAROUNDS if 64BIT
159 select CPU_R4000_WORKAROUNDS if 64BIT
160 select CPU_R4400_WORKAROUNDS if 64BIT
161 select DMA_NONCOHERENT
164 select SYS_HAS_CPU_R3000
165 select SYS_HAS_CPU_R4X00
166 select SYS_SUPPORTS_32BIT_KERNEL
167 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
168 select SYS_SUPPORTS_LITTLE_ENDIAN
169 select SYS_SUPPORTS_128HZ
170 select SYS_SUPPORTS_256HZ
171 select SYS_SUPPORTS_1024HZ
173 This enables support for DEC's MIPS based workstations. For details
174 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
175 DECstation porting pages on <http://decstation.unix-ag.org/>.
177 If you have one of the following DECstation Models you definitely
178 want to choose R4xx0 for the CPU Type:
185 otherwise choose R3000.
188 bool "Jazz family of machines"
191 select ARCH_MAY_HAVE_PC_FDC
194 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
195 select GENERIC_ISA_DMA
196 select HAVE_PCSPKR_PLATFORM
201 select SYS_HAS_CPU_R4X00
202 select SYS_SUPPORTS_32BIT_KERNEL
203 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
204 select SYS_SUPPORTS_100HZ
206 This a family of machines based on the MIPS R4030 chipset which was
207 used by several vendors to build RISC/os and Windows NT workstations.
208 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
209 Olivetti M700-10 workstations.
212 bool "Ingenic JZ4740 based machines"
213 select SYS_HAS_CPU_MIPS32_R1
214 select SYS_SUPPORTS_32BIT_KERNEL
215 select SYS_SUPPORTS_LITTLE_ENDIAN
216 select SYS_SUPPORTS_ZBOOT_UART16550
217 select DMA_NONCOHERENT
220 select ARCH_REQUIRE_GPIOLIB
221 select SYS_HAS_EARLY_PRINTK
224 select GENERIC_IRQ_CHIP
227 bool "Lantiq based platforms"
228 select DMA_NONCOHERENT
232 select SYS_HAS_CPU_MIPS32_R1
233 select SYS_HAS_CPU_MIPS32_R2
234 select SYS_SUPPORTS_BIG_ENDIAN
235 select SYS_SUPPORTS_32BIT_KERNEL
236 select SYS_SUPPORTS_MULTITHREADING
237 select SYS_HAS_EARLY_PRINTK
238 select ARCH_REQUIRE_GPIOLIB
241 select HAVE_MACH_CLKDEV
246 bool "LASAT Networks platforms"
249 select DMA_NONCOHERENT
250 select SYS_HAS_EARLY_PRINTK
253 select PCI_GT64XXX_PCI0
255 select R5000_CPU_SCACHE
256 select SYS_HAS_CPU_R5000
257 select SYS_SUPPORTS_32BIT_KERNEL
258 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
259 select SYS_SUPPORTS_LITTLE_ENDIAN
262 bool "Loongson family of machines"
263 select SYS_SUPPORTS_ZBOOT
265 This enables the support of Loongson family of machines.
267 Loongson is a family of general-purpose MIPS-compatible CPUs.
268 developed at Institute of Computing Technology (ICT),
269 Chinese Academy of Sciences (CAS) in the People's Republic
270 of China. The chief architect is Professor Weiwu Hu.
272 config MACH_LOONGSON1
273 bool "Loongson 1 family of machines"
274 select SYS_SUPPORTS_ZBOOT
276 This enables support for the Loongson 1 based machines.
278 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
279 the ICT (Institute of Computing Technology) and the Chinese Academy
283 bool "MIPS Malta board"
284 select ARCH_MAY_HAVE_PC_FDC
289 select DMA_NONCOHERENT
290 select GENERIC_ISA_DMA
291 select HAVE_PCSPKR_PLATFORM
297 select MIPS_BOARDS_GEN
299 select MIPS_CPU_SCACHE
300 select PCI_GT64XXX_PCI0
303 select SYS_HAS_CPU_MIPS32_R1
304 select SYS_HAS_CPU_MIPS32_R2
305 select SYS_HAS_CPU_MIPS64_R1
306 select SYS_HAS_CPU_MIPS64_R2
307 select SYS_HAS_CPU_NEVADA
308 select SYS_HAS_CPU_RM7000
309 select SYS_HAS_EARLY_PRINTK
310 select SYS_SUPPORTS_32BIT_KERNEL
311 select SYS_SUPPORTS_64BIT_KERNEL
312 select SYS_SUPPORTS_BIG_ENDIAN
313 select SYS_SUPPORTS_LITTLE_ENDIAN
314 select SYS_SUPPORTS_MIPS_CMP
315 select SYS_SUPPORTS_MULTITHREADING
316 select SYS_SUPPORTS_SMARTMIPS
317 select SYS_SUPPORTS_ZBOOT
319 This enables support for the MIPS Technologies Malta evaluation
323 bool 'MIPS simulator (MIPSsim)'
326 select DMA_NONCOHERENT
327 select SYS_HAS_EARLY_PRINTK
330 select SYS_HAS_CPU_MIPS32_R1
331 select SYS_HAS_CPU_MIPS32_R2
332 select SYS_HAS_EARLY_PRINTK
333 select SYS_SUPPORTS_32BIT_KERNEL
334 select SYS_SUPPORTS_BIG_ENDIAN
335 select SYS_SUPPORTS_MULTITHREADING
336 select SYS_SUPPORTS_LITTLE_ENDIAN
338 This option enables support for MIPS Technologies MIPSsim software
342 bool "NEC EMMA2RH Mark-eins board"
346 This enables support for the NEC Electronics Mark-eins boards.
349 bool "NEC VR4100 series based machines"
352 select SYS_HAS_CPU_VR41XX
353 select ARCH_REQUIRE_GPIOLIB
356 bool "NXP STB220 board"
359 Support for NXP Semiconductors STB220 Development Board.
366 Support for NXP Semiconductors STB225 Development Board.
369 bool "NXP PNX8550 based JBS board"
371 select SYS_SUPPORTS_LITTLE_ENDIAN
373 config PNX8550_STB810
374 bool "NXP PNX8550 based STB810 board"
376 select SYS_SUPPORTS_LITTLE_ENDIAN
379 bool "PMC-Sierra MSP chipsets"
380 depends on EXPERIMENTAL
383 select DMA_NONCOHERENT
385 select NO_EXCEPT_FILL
387 select SYS_HAS_CPU_MIPS32_R1
388 select SYS_HAS_CPU_MIPS32_R2
389 select SYS_SUPPORTS_32BIT_KERNEL
390 select SYS_SUPPORTS_BIG_ENDIAN
393 select SERIAL_8250_CONSOLE
395 This adds support for the PMC-Sierra family of Multi-Service
396 Processor System-On-A-Chips. These parts include a number
397 of integrated peripherals, interfaces and DSPs in addition to
398 a variety of MIPS cores.
401 bool "PMC-Sierra Yosemite eval board"
410 select SYS_HAS_CPU_RM9000
411 select SYS_HAS_EARLY_PRINTK
412 select SYS_SUPPORTS_32BIT_KERNEL
413 select SYS_SUPPORTS_64BIT_KERNEL
414 select SYS_SUPPORTS_BIG_ENDIAN
415 select SYS_SUPPORTS_HIGHMEM
416 select SYS_SUPPORTS_SMP
418 Yosemite is an evaluation board for the RM9000x2 processor
419 manufactured by PMC-Sierra.
425 select CPU_MIPSR2_IRQ_VI
426 select CPU_MIPSR2_IRQ_EI
428 select DMA_NONCOHERENT
430 select SYS_HAS_EARLY_PRINTK
431 select SYS_HAS_CPU_MIPS32_R2
432 select SYS_SUPPORTS_32BIT_KERNEL
433 select SYS_SUPPORTS_BIG_ENDIAN
434 select SYS_SUPPORTS_HIGHMEM
435 select USB_OHCI_LITTLE_ENDIAN
437 This enables support for the Cisco PowerTV Platform.
440 bool "SGI IP22 (Indy/Indigo2)"
446 select DEFAULT_SGI_PARTITION
447 select DMA_NONCOHERENT
451 select IP22_CPU_SCACHE
453 select GENERIC_ISA_DMA_SUPPORT_BROKEN
455 select SGI_HAS_INDYDOG
461 select SYS_HAS_CPU_R4X00
462 select SYS_HAS_CPU_R5000
464 # Disable EARLY_PRINTK for now since it leads to overwritten prom
465 # memory during early boot on some machines.
467 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468 # for a more details discussion
470 # select SYS_HAS_EARLY_PRINTK
471 select SYS_SUPPORTS_32BIT_KERNEL
472 select SYS_SUPPORTS_64BIT_KERNEL
473 select SYS_SUPPORTS_BIG_ENDIAN
475 This are the SGI Indy, Challenge S and Indigo2, as well as certain
476 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
477 that runs on these, say Y here.
480 bool "SGI IP27 (Origin200/2000)"
484 select DEFAULT_SGI_PARTITION
486 select SYS_HAS_EARLY_PRINTK
488 select NR_CPUS_DEFAULT_64
489 select SYS_HAS_CPU_R10000
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select SYS_SUPPORTS_NUMA
493 select SYS_SUPPORTS_SMP
495 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
496 workstations. To compile a Linux kernel that runs on these, say Y
500 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
501 depends on EXPERIMENTAL
507 select DEFAULT_SGI_PARTITION
508 select DMA_NONCOHERENT
509 select GENERIC_ISA_DMA_SUPPORT_BROKEN
515 select SGI_HAS_INDYDOG
521 select SYS_HAS_CPU_R10000
523 # Disable EARLY_PRINTK for now since it leads to overwritten prom
524 # memory during early boot on some machines.
526 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
527 # for a more details discussion
529 # select SYS_HAS_EARLY_PRINTK
530 select SYS_SUPPORTS_64BIT_KERNEL
531 select SYS_SUPPORTS_BIG_ENDIAN
533 This is the SGI Indigo2 with R10000 processor. To compile a Linux
534 kernel that runs on these, say Y here.
543 select DMA_NONCOHERENT
546 select R5000_CPU_SCACHE
547 select RM7000_CPU_SCACHE
548 select SYS_HAS_CPU_R5000
549 select SYS_HAS_CPU_R10000 if BROKEN
550 select SYS_HAS_CPU_RM7000
551 select SYS_HAS_CPU_NEVADA
552 select SYS_SUPPORTS_64BIT_KERNEL
553 select SYS_SUPPORTS_BIG_ENDIAN
555 If you want this kernel to run on SGI O2 workstation, say Y here.
558 bool "Sibyte BCM91120C-CRhine"
559 depends on EXPERIMENTAL
562 select SIBYTE_BCM1120
564 select SYS_HAS_CPU_SB1
565 select SYS_SUPPORTS_BIG_ENDIAN
566 select SYS_SUPPORTS_LITTLE_ENDIAN
569 bool "Sibyte BCM91120x-Carmel"
570 depends on EXPERIMENTAL
573 select SIBYTE_BCM1120
575 select SYS_HAS_CPU_SB1
576 select SYS_SUPPORTS_BIG_ENDIAN
577 select SYS_SUPPORTS_LITTLE_ENDIAN
580 bool "Sibyte BCM91125C-CRhone"
581 depends on EXPERIMENTAL
584 select SIBYTE_BCM1125
586 select SYS_HAS_CPU_SB1
587 select SYS_SUPPORTS_BIG_ENDIAN
588 select SYS_SUPPORTS_HIGHMEM
589 select SYS_SUPPORTS_LITTLE_ENDIAN
592 bool "Sibyte BCM91125E-Rhone"
593 depends on EXPERIMENTAL
596 select SIBYTE_BCM1125H
598 select SYS_HAS_CPU_SB1
599 select SYS_SUPPORTS_BIG_ENDIAN
600 select SYS_SUPPORTS_LITTLE_ENDIAN
603 bool "Sibyte BCM91250A-SWARM"
606 select HAVE_PATA_PLATFORM
607 select NR_CPUS_DEFAULT_2
610 select SYS_HAS_CPU_SB1
611 select SYS_SUPPORTS_BIG_ENDIAN
612 select SYS_SUPPORTS_HIGHMEM
613 select SYS_SUPPORTS_LITTLE_ENDIAN
614 select ZONE_DMA32 if 64BIT
616 config SIBYTE_LITTLESUR
617 bool "Sibyte BCM91250C2-LittleSur"
618 depends on EXPERIMENTAL
621 select HAVE_PATA_PLATFORM
622 select NR_CPUS_DEFAULT_2
625 select SYS_HAS_CPU_SB1
626 select SYS_SUPPORTS_BIG_ENDIAN
627 select SYS_SUPPORTS_HIGHMEM
628 select SYS_SUPPORTS_LITTLE_ENDIAN
630 config SIBYTE_SENTOSA
631 bool "Sibyte BCM91250E-Sentosa"
632 depends on EXPERIMENTAL
635 select NR_CPUS_DEFAULT_2
638 select SYS_HAS_CPU_SB1
639 select SYS_SUPPORTS_BIG_ENDIAN
640 select SYS_SUPPORTS_LITTLE_ENDIAN
643 bool "Sibyte BCM91480B-BigSur"
646 select NR_CPUS_DEFAULT_4
647 select SIBYTE_BCM1x80
649 select SYS_HAS_CPU_SB1
650 select SYS_SUPPORTS_BIG_ENDIAN
651 select SYS_SUPPORTS_HIGHMEM
652 select SYS_SUPPORTS_LITTLE_ENDIAN
653 select ZONE_DMA32 if 64BIT
656 bool "SNI RM200/300/400"
657 select ARC if CPU_LITTLE_ENDIAN
658 select ARC32 if CPU_LITTLE_ENDIAN
659 select SNIPROM if CPU_BIG_ENDIAN
660 select ARCH_MAY_HAVE_PC_FDC
664 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
665 select DMA_NONCOHERENT
666 select GENERIC_ISA_DMA
667 select HAVE_PCSPKR_PLATFORM
674 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
675 select SYS_HAS_CPU_R4X00
676 select SYS_HAS_CPU_R5000
677 select SYS_HAS_CPU_R10000
678 select R5000_CPU_SCACHE
679 select SYS_HAS_EARLY_PRINTK
680 select SYS_SUPPORTS_32BIT_KERNEL
681 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
682 select SYS_SUPPORTS_BIG_ENDIAN
683 select SYS_SUPPORTS_HIGHMEM
684 select SYS_SUPPORTS_LITTLE_ENDIAN
686 The SNI RM200/300/400 are MIPS-based machines manufactured by
687 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
688 Technology and now in turn merged with Fujitsu. Say Y here to
689 support this machine type.
692 bool "Toshiba TX39 series based machines"
695 bool "Toshiba TX49 series based machines"
697 config MIKROTIK_RB532
698 bool "Mikrotik RB532 boards"
701 select DMA_NONCOHERENT
704 select SYS_HAS_CPU_MIPS32_R1
705 select SYS_SUPPORTS_32BIT_KERNEL
706 select SYS_SUPPORTS_LITTLE_ENDIAN
709 select ARCH_REQUIRE_GPIOLIB
711 Support the Mikrotik(tm) RouterBoard 532 series,
712 based on the IDT RC32434 SoC.
715 bool "Wind River PPMC board"
720 select DMA_NONCOHERENT
722 select PCI_GT64XXX_PCI0
724 select SYS_HAS_CPU_MIPS32_R1
725 select SYS_HAS_CPU_MIPS32_R2
726 select SYS_HAS_CPU_MIPS64_R1
727 select SYS_HAS_CPU_NEVADA
728 select SYS_HAS_CPU_RM7000
729 select SYS_SUPPORTS_32BIT_KERNEL
730 select SYS_SUPPORTS_64BIT_KERNEL
731 select SYS_SUPPORTS_BIG_ENDIAN
732 select SYS_SUPPORTS_LITTLE_ENDIAN
734 This enables support for the Wind River MIPS32 4KC PPMC evaluation
735 board, which is based on GT64120 bridge chip.
737 config CAVIUM_OCTEON_SIMULATOR
738 bool "Cavium Networks Octeon Simulator"
740 select 64BIT_PHYS_ADDR
742 select SYS_SUPPORTS_64BIT_KERNEL
743 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HOTPLUG_CPU
745 select SYS_HAS_CPU_CAVIUM_OCTEON
748 The Octeon simulator is software performance model of the Cavium
749 Octeon Processor. It supports simulating Octeon processors on x86
752 config CAVIUM_OCTEON_REFERENCE_BOARD
753 bool "Cavium Networks Octeon reference board"
755 select 64BIT_PHYS_ADDR
757 select SYS_SUPPORTS_64BIT_KERNEL
758 select SYS_SUPPORTS_BIG_ENDIAN
759 select SYS_SUPPORTS_HOTPLUG_CPU
760 select SYS_HAS_EARLY_PRINTK
761 select SYS_HAS_CPU_CAVIUM_OCTEON
764 select ARCH_SUPPORTS_MSI
766 select USB_ARCH_HAS_OHCI
767 select USB_ARCH_HAS_EHCI
770 This option supports all of the Octeon reference boards from Cavium
771 Networks. It builds a kernel that dynamically determines the Octeon
772 CPU type and supports all known board reference implementations.
773 Some of the supported boards are:
780 Say Y here for most Octeon reference boards.
783 bool "Netlogic XLR/XLS based systems"
784 depends on EXPERIMENTAL
787 select SYS_HAS_CPU_XLR
788 select SYS_SUPPORTS_SMP
791 select SYS_SUPPORTS_32BIT_KERNEL
792 select SYS_SUPPORTS_64BIT_KERNEL
793 select 64BIT_PHYS_ADDR
794 select SYS_SUPPORTS_BIG_ENDIAN
795 select SYS_SUPPORTS_HIGHMEM
797 select NR_CPUS_DEFAULT_32
801 select ARCH_SUPPORTS_MSI
802 select ZONE_DMA if 64BIT
804 select SYS_HAS_EARLY_PRINTK
805 select USB_ARCH_HAS_OHCI if USB_SUPPORT
806 select USB_ARCH_HAS_EHCI if USB_SUPPORT
808 Support for systems based on Netlogic XLR and XLS processors.
809 Say Y here if you have a XLR or XLS based board.
812 bool "Netlogic XLP based systems"
813 depends on EXPERIMENTAL
816 select SYS_HAS_CPU_XLP
817 select SYS_SUPPORTS_SMP
819 select SYS_SUPPORTS_32BIT_KERNEL
820 select SYS_SUPPORTS_64BIT_KERNEL
821 select 64BIT_PHYS_ADDR
822 select SYS_SUPPORTS_BIG_ENDIAN
823 select SYS_SUPPORTS_LITTLE_ENDIAN
824 select SYS_SUPPORTS_HIGHMEM
826 select NR_CPUS_DEFAULT_32
830 select ZONE_DMA if 64BIT
832 select SYS_HAS_EARLY_PRINTK
835 This board is based on Netlogic XLP Processor.
836 Say Y here if you have a XLP based board.
840 source "arch/mips/alchemy/Kconfig"
841 source "arch/mips/ath79/Kconfig"
842 source "arch/mips/bcm47xx/Kconfig"
843 source "arch/mips/bcm63xx/Kconfig"
844 source "arch/mips/jazz/Kconfig"
845 source "arch/mips/jz4740/Kconfig"
846 source "arch/mips/lantiq/Kconfig"
847 source "arch/mips/lasat/Kconfig"
848 source "arch/mips/pmc-sierra/Kconfig"
849 source "arch/mips/powertv/Kconfig"
850 source "arch/mips/sgi-ip27/Kconfig"
851 source "arch/mips/sibyte/Kconfig"
852 source "arch/mips/txx9/Kconfig"
853 source "arch/mips/vr41xx/Kconfig"
854 source "arch/mips/cavium-octeon/Kconfig"
855 source "arch/mips/loongson/Kconfig"
856 source "arch/mips/loongson1/Kconfig"
857 source "arch/mips/netlogic/Kconfig"
861 config RWSEM_GENERIC_SPINLOCK
865 config RWSEM_XCHGADD_ALGORITHM
868 config ARCH_HAS_ILOG2_U32
872 config ARCH_HAS_ILOG2_U64
876 config GENERIC_HWEIGHT
880 config GENERIC_CALIBRATE_DELAY
884 config SCHED_OMIT_FRAME_POINTER
889 # Select some configuration options automatically based on user selections.
894 config ARCH_MAY_HAVE_PC_FDC
943 select ARCH_REQUIRE_GPIOLIB
949 config ARCH_DMA_ADDR_T_64BIT
950 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
955 config DMA_NONCOHERENT
957 select NEED_DMA_MAP_STATE
959 config NEED_DMA_MAP_STATE
962 config SYS_HAS_EARLY_PRINTK
966 bool "Support for hot-pluggable CPUs"
967 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
969 Say Y here to allow turning CPUs off and on. CPUs can be
970 controlled through /sys/devices/system/cpu.
971 (Note: power management support will enable this option
972 automatically on SMP systems. )
973 Say N if you want to disable CPU hotplug.
975 config SYS_SUPPORTS_HOTPLUG_CPU
990 config MIPS_DISABLE_OBSOLETE_IDE
1002 config GENERIC_ISA_DMA
1004 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1007 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1009 select GENERIC_ISA_DMA
1017 config HOLES_IN_ZONE
1021 # Endianness selection. Sufficiently obscure so many users don't know what to
1022 # answer,so we try hard to limit the available choices. Also the use of a
1023 # choice statement should be more obvious to the user.
1026 prompt "Endianness selection"
1028 Some MIPS machines can be configured for either little or big endian
1029 byte order. These modes require different kernels and a different
1030 Linux distribution. In general there is one preferred byteorder for a
1031 particular system but some systems are just as commonly used in the
1032 one or the other endianness.
1034 config CPU_BIG_ENDIAN
1036 depends on SYS_SUPPORTS_BIG_ENDIAN
1038 config CPU_LITTLE_ENDIAN
1039 bool "Little endian"
1040 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1048 config SYS_SUPPORTS_APM_EMULATION
1051 config SYS_SUPPORTS_BIG_ENDIAN
1054 config SYS_SUPPORTS_LITTLE_ENDIAN
1057 config SYS_SUPPORTS_HUGETLBFS
1059 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1086 config MIPS_BOARDS_GEN
1089 config PCI_GT64XXX_PCI0
1092 config NO_EXCEPT_FILL
1097 select SERIAL_RM9000
1103 select DMA_NONCOHERENT
1105 select SWAP_IO_SPACE
1106 select SYS_HAS_CPU_R5500
1107 select SYS_SUPPORTS_32BIT_KERNEL
1108 select SYS_SUPPORTS_64BIT_KERNEL
1109 select SYS_SUPPORTS_BIG_ENDIAN
1116 select DMA_NONCOHERENT
1117 select SYS_HAS_CPU_MIPS32_R2
1118 select SYS_SUPPORTS_32BIT_KERNEL
1119 select SYS_SUPPORTS_LITTLE_ENDIAN
1120 select SYS_SUPPORTS_BIG_ENDIAN
1122 select CPU_MIPSR2_IRQ_VI
1134 select DMA_NONCOHERENT
1136 select SYS_HAS_CPU_MIPS32_R1
1137 select SYS_HAS_EARLY_PRINTK
1138 select SYS_SUPPORTS_32BIT_KERNEL
1141 config SWAP_IO_SPACE
1144 config SERIAL_RM9000
1147 config SGI_HAS_INDYDOG
1159 config SGI_HAS_ZILOG
1162 config SGI_HAS_I8042
1165 config DEFAULT_SGI_PARTITION
1177 config MIPS_L1_CACHE_SHIFT
1179 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1180 default "6" if MIPS_CPU_SCACHE
1181 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1184 config HAVE_STD_PC_SERIAL_PORT
1188 bool "ARC console support"
1189 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1193 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1198 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1207 menu "CPU selection"
1213 config CPU_LOONGSON2E
1215 depends on SYS_HAS_CPU_LOONGSON2E
1216 select CPU_LOONGSON2
1218 The Loongson 2E processor implements the MIPS III instruction set
1219 with many extensions.
1221 It has an internal FPGA northbridge, which is compatible to
1224 config CPU_LOONGSON2F
1226 depends on SYS_HAS_CPU_LOONGSON2F
1227 select CPU_LOONGSON2
1229 select ARCH_REQUIRE_GPIOLIB
1231 The Loongson 2F processor implements the MIPS III instruction set
1232 with many extensions.
1234 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1235 have a similar programming interface with FPGA northbridge used in
1238 config CPU_LOONGSON1B
1240 depends on SYS_HAS_CPU_LOONGSON1B
1241 select CPU_LOONGSON1
1243 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1244 release 2 instruction set.
1246 config CPU_MIPS32_R1
1247 bool "MIPS32 Release 1"
1248 depends on SYS_HAS_CPU_MIPS32_R1
1249 select CPU_HAS_PREFETCH
1250 select CPU_SUPPORTS_32BIT_KERNEL
1251 select CPU_SUPPORTS_HIGHMEM
1253 Choose this option to build a kernel for release 1 or later of the
1254 MIPS32 architecture. Most modern embedded systems with a 32-bit
1255 MIPS processor are based on a MIPS32 processor. If you know the
1256 specific type of processor in your system, choose those that one
1257 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1258 Release 2 of the MIPS32 architecture is available since several
1259 years so chances are you even have a MIPS32 Release 2 processor
1260 in which case you should choose CPU_MIPS32_R2 instead for better
1263 config CPU_MIPS32_R2
1264 bool "MIPS32 Release 2"
1265 depends on SYS_HAS_CPU_MIPS32_R2
1266 select CPU_HAS_PREFETCH
1267 select CPU_SUPPORTS_32BIT_KERNEL
1268 select CPU_SUPPORTS_HIGHMEM
1270 Choose this option to build a kernel for release 2 or later of the
1271 MIPS32 architecture. Most modern embedded systems with a 32-bit
1272 MIPS processor are based on a MIPS32 processor. If you know the
1273 specific type of processor in your system, choose those that one
1274 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1276 config CPU_MIPS64_R1
1277 bool "MIPS64 Release 1"
1278 depends on SYS_HAS_CPU_MIPS64_R1
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 1 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.
1290 Release 2 of the MIPS64 architecture is available since several
1291 years so chances are you even have a MIPS64 Release 2 processor
1292 in which case you should choose CPU_MIPS64_R2 instead for better
1295 config CPU_MIPS64_R2
1296 bool "MIPS64 Release 2"
1297 depends on SYS_HAS_CPU_MIPS64_R2
1298 select CPU_HAS_PREFETCH
1299 select CPU_SUPPORTS_32BIT_KERNEL
1300 select CPU_SUPPORTS_64BIT_KERNEL
1301 select CPU_SUPPORTS_HIGHMEM
1302 select CPU_SUPPORTS_HUGEPAGES
1304 Choose this option to build a kernel for release 2 or later of the
1305 MIPS64 architecture. Many modern embedded systems with a 64-bit
1306 MIPS processor are based on a MIPS64 processor. If you know the
1307 specific type of processor in your system, choose those that one
1308 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1312 depends on SYS_HAS_CPU_R3000
1314 select CPU_SUPPORTS_32BIT_KERNEL
1315 select CPU_SUPPORTS_HIGHMEM
1317 Please make sure to pick the right CPU type. Linux/MIPS is not
1318 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1319 *not* work on R4000 machines and vice versa. However, since most
1320 of the supported machines have an R4000 (or similar) CPU, R4x00
1321 might be a safe bet. If the resulting kernel does not work,
1322 try to recompile with R3000.
1326 depends on SYS_HAS_CPU_TX39XX
1327 select CPU_SUPPORTS_32BIT_KERNEL
1331 depends on SYS_HAS_CPU_VR41XX
1332 select CPU_SUPPORTS_32BIT_KERNEL
1333 select CPU_SUPPORTS_64BIT_KERNEL
1335 The options selects support for the NEC VR4100 series of processors.
1336 Only choose this option if you have one of these processors as a
1337 kernel built with this option will not run on any other type of
1338 processor or vice versa.
1342 depends on SYS_HAS_CPU_R4300
1343 select CPU_SUPPORTS_32BIT_KERNEL
1344 select CPU_SUPPORTS_64BIT_KERNEL
1346 MIPS Technologies R4300-series processors.
1350 depends on SYS_HAS_CPU_R4X00
1351 select CPU_SUPPORTS_32BIT_KERNEL
1352 select CPU_SUPPORTS_64BIT_KERNEL
1354 MIPS Technologies R4000-series processors other than 4300, including
1355 the R4000, R4400, R4600, and 4700.
1359 depends on SYS_HAS_CPU_TX49XX
1360 select CPU_HAS_PREFETCH
1361 select CPU_SUPPORTS_32BIT_KERNEL
1362 select CPU_SUPPORTS_64BIT_KERNEL
1366 depends on SYS_HAS_CPU_R5000
1367 select CPU_SUPPORTS_32BIT_KERNEL
1368 select CPU_SUPPORTS_64BIT_KERNEL
1370 MIPS Technologies R5000-series processors other than the Nevada.
1374 depends on SYS_HAS_CPU_R5432
1375 select CPU_SUPPORTS_32BIT_KERNEL
1376 select CPU_SUPPORTS_64BIT_KERNEL
1380 depends on SYS_HAS_CPU_R5500
1381 select CPU_SUPPORTS_32BIT_KERNEL
1382 select CPU_SUPPORTS_64BIT_KERNEL
1383 select CPU_SUPPORTS_HUGEPAGES
1385 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1390 depends on EXPERIMENTAL
1391 depends on SYS_HAS_CPU_R6000
1392 select CPU_SUPPORTS_32BIT_KERNEL
1394 MIPS Technologies R6000 and R6000A series processors. Note these
1395 processors are extremely rare and the support for them is incomplete.
1399 depends on SYS_HAS_CPU_NEVADA
1400 select CPU_SUPPORTS_32BIT_KERNEL
1401 select CPU_SUPPORTS_64BIT_KERNEL
1403 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1407 depends on EXPERIMENTAL
1408 depends on SYS_HAS_CPU_R8000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_64BIT_KERNEL
1412 MIPS Technologies R8000 processors. Note these processors are
1413 uncommon and the support for them is incomplete.
1417 depends on SYS_HAS_CPU_R10000
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HIGHMEM
1423 MIPS Technologies R10000-series processors.
1427 depends on SYS_HAS_CPU_RM7000
1428 select CPU_HAS_PREFETCH
1429 select CPU_SUPPORTS_32BIT_KERNEL
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1435 depends on SYS_HAS_CPU_RM9000
1436 select CPU_HAS_PREFETCH
1437 select CPU_SUPPORTS_32BIT_KERNEL
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select CPU_SUPPORTS_HIGHMEM
1440 select WEAK_ORDERING
1444 depends on SYS_HAS_CPU_SB1
1445 select CPU_SUPPORTS_32BIT_KERNEL
1446 select CPU_SUPPORTS_64BIT_KERNEL
1447 select CPU_SUPPORTS_HIGHMEM
1448 select WEAK_ORDERING
1450 config CPU_CAVIUM_OCTEON
1451 bool "Cavium Octeon processor"
1452 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1453 select ARCH_SPARSEMEM_ENABLE
1454 select CPU_HAS_PREFETCH
1455 select CPU_SUPPORTS_64BIT_KERNEL
1456 select SYS_SUPPORTS_SMP
1457 select NR_CPUS_DEFAULT_16
1458 select WEAK_ORDERING
1459 select CPU_SUPPORTS_HIGHMEM
1460 select CPU_SUPPORTS_HUGEPAGES
1464 The Cavium Octeon processor is a highly integrated chip containing
1465 many ethernet hardware widgets for networking tasks. The processor
1466 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1467 Full details can be found at http://www.caviumnetworks.com.
1469 config CPU_BMIPS3300
1471 depends on SYS_HAS_CPU_BMIPS3300
1474 Broadcom BMIPS3300 processors.
1476 config CPU_BMIPS4350
1478 depends on SYS_HAS_CPU_BMIPS4350
1480 select SYS_SUPPORTS_SMP
1481 select SYS_SUPPORTS_HOTPLUG_CPU
1483 Broadcom BMIPS4350 ("VIPER") processors.
1485 config CPU_BMIPS4380
1487 depends on SYS_HAS_CPU_BMIPS4380
1489 select SYS_SUPPORTS_SMP
1490 select SYS_SUPPORTS_HOTPLUG_CPU
1492 Broadcom BMIPS4380 processors.
1494 config CPU_BMIPS5000
1496 depends on SYS_HAS_CPU_BMIPS5000
1498 select CPU_SUPPORTS_HIGHMEM
1499 select MIPS_CPU_SCACHE
1500 select SYS_SUPPORTS_SMP
1501 select SYS_SUPPORTS_HOTPLUG_CPU
1503 Broadcom BMIPS5000 processors.
1506 bool "Netlogic XLR SoC"
1507 depends on SYS_HAS_CPU_XLR
1508 select CPU_SUPPORTS_32BIT_KERNEL
1509 select CPU_SUPPORTS_64BIT_KERNEL
1510 select CPU_SUPPORTS_HIGHMEM
1511 select WEAK_ORDERING
1512 select WEAK_REORDERING_BEYOND_LLSC
1513 select CPU_SUPPORTS_HUGEPAGES
1515 Netlogic Microsystems XLR/XLS processors.
1518 bool "Netlogic XLP SoC"
1519 depends on SYS_HAS_CPU_XLP
1520 select CPU_SUPPORTS_32BIT_KERNEL
1521 select CPU_SUPPORTS_64BIT_KERNEL
1522 select CPU_SUPPORTS_HIGHMEM
1524 select WEAK_ORDERING
1525 select WEAK_REORDERING_BEYOND_LLSC
1526 select CPU_HAS_PREFETCH
1528 Netlogic Microsystems XLP processors.
1532 config CPU_NOP_WORKAROUNDS
1535 config CPU_JUMP_WORKAROUNDS
1538 config CPU_LOONGSON2F_WORKAROUNDS
1539 bool "Loongson 2F Workarounds"
1541 select CPU_NOP_WORKAROUNDS
1542 select CPU_JUMP_WORKAROUNDS
1544 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1545 require workarounds. Without workarounds the system may hang
1546 unexpectedly. For more information please refer to the gas
1547 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1549 Loongson 2F03 and later have fixed these issues and no workarounds
1550 are needed. The workarounds have no significant side effect on them
1551 but may decrease the performance of the system so this option should
1552 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1555 If unsure, please say Y.
1556 endif # CPU_LOONGSON2F
1558 config SYS_SUPPORTS_ZBOOT
1560 select HAVE_KERNEL_GZIP
1561 select HAVE_KERNEL_BZIP2
1562 select HAVE_KERNEL_LZMA
1563 select HAVE_KERNEL_LZO
1565 config SYS_SUPPORTS_ZBOOT_UART16550
1567 select SYS_SUPPORTS_ZBOOT
1569 config CPU_LOONGSON2
1571 select CPU_SUPPORTS_32BIT_KERNEL
1572 select CPU_SUPPORTS_64BIT_KERNEL
1573 select CPU_SUPPORTS_HIGHMEM
1575 config CPU_LOONGSON1
1579 select CPU_HAS_PREFETCH
1580 select CPU_SUPPORTS_32BIT_KERNEL
1581 select CPU_SUPPORTS_HIGHMEM
1586 select CPU_SUPPORTS_32BIT_KERNEL
1587 select DMA_NONCOHERENT
1589 select SWAP_IO_SPACE
1590 select WEAK_ORDERING
1592 config SYS_HAS_CPU_LOONGSON2E
1595 config SYS_HAS_CPU_LOONGSON2F
1597 select CPU_SUPPORTS_CPUFREQ
1598 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1599 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1601 config SYS_HAS_CPU_LOONGSON1B
1604 config SYS_HAS_CPU_MIPS32_R1
1607 config SYS_HAS_CPU_MIPS32_R2
1610 config SYS_HAS_CPU_MIPS64_R1
1613 config SYS_HAS_CPU_MIPS64_R2
1616 config SYS_HAS_CPU_R3000
1619 config SYS_HAS_CPU_TX39XX
1622 config SYS_HAS_CPU_VR41XX
1625 config SYS_HAS_CPU_R4300
1628 config SYS_HAS_CPU_R4X00
1631 config SYS_HAS_CPU_TX49XX
1634 config SYS_HAS_CPU_R5000
1637 config SYS_HAS_CPU_R5432
1640 config SYS_HAS_CPU_R5500
1643 config SYS_HAS_CPU_R6000
1646 config SYS_HAS_CPU_NEVADA
1649 config SYS_HAS_CPU_R8000
1652 config SYS_HAS_CPU_R10000
1655 config SYS_HAS_CPU_RM7000
1658 config SYS_HAS_CPU_RM9000
1661 config SYS_HAS_CPU_SB1
1664 config SYS_HAS_CPU_CAVIUM_OCTEON
1667 config SYS_HAS_CPU_BMIPS3300
1670 config SYS_HAS_CPU_BMIPS4350
1673 config SYS_HAS_CPU_BMIPS4380
1676 config SYS_HAS_CPU_BMIPS5000
1679 config SYS_HAS_CPU_XLR
1682 config SYS_HAS_CPU_XLP
1686 # CPU may reorder R->R, R->W, W->R, W->W
1687 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1689 config WEAK_ORDERING
1693 # CPU may reorder reads and writes beyond LL/SC
1694 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1696 config WEAK_REORDERING_BEYOND_LLSC
1701 # These two indicate any level of the MIPS32 and MIPS64 architecture
1705 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1709 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1712 # These two indicate the revision of the architecture, either Release 1 or Release 2
1716 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1720 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1722 config SYS_SUPPORTS_32BIT_KERNEL
1724 config SYS_SUPPORTS_64BIT_KERNEL
1726 config CPU_SUPPORTS_32BIT_KERNEL
1728 config CPU_SUPPORTS_64BIT_KERNEL
1730 config CPU_SUPPORTS_CPUFREQ
1732 config CPU_SUPPORTS_ADDRWINCFG
1734 config CPU_SUPPORTS_HUGEPAGES
1736 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1738 config MIPS_PGD_C0_CONTEXT
1740 default y if 64BIT && CPU_MIPSR2
1743 # Set to y for ptrace access to watch registers.
1745 config HARDWARE_WATCHPOINTS
1747 default y if CPU_MIPSR1 || CPU_MIPSR2
1753 prompt "Kernel code model"
1755 You should only select this option if you have a workload that
1756 actually benefits from 64-bit processing or if your machine has
1757 large memory. You will only be presented a single option in this
1758 menu if your system does not support both 32-bit and 64-bit kernels.
1761 bool "32-bit kernel"
1762 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1765 Select this option if you want to build a 32-bit kernel.
1767 bool "64-bit kernel"
1768 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1769 select HAVE_SYSCALL_WRAPPERS
1771 Select this option if you want to build a 64-bit kernel.
1776 prompt "Kernel page size"
1777 default PAGE_SIZE_4KB
1779 config PAGE_SIZE_4KB
1781 depends on !CPU_LOONGSON2
1783 This option select the standard 4kB Linux page size. On some
1784 R3000-family processors this is the only available page size. Using
1785 4kB page size will minimize memory consumption and is therefore
1786 recommended for low memory systems.
1788 config PAGE_SIZE_8KB
1790 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1792 Using 8kB page size will result in higher performance kernel at
1793 the price of higher memory consumption. This option is available
1794 only on R8000 and cnMIPS processors. Note that you will need a
1795 suitable Linux distribution to support this.
1797 config PAGE_SIZE_16KB
1799 depends on !CPU_R3000 && !CPU_TX39XX
1801 Using 16kB page size will result in higher performance kernel at
1802 the price of higher memory consumption. This option is available on
1803 all non-R3000 family processors. Note that you will need a suitable
1804 Linux distribution to support this.
1806 config PAGE_SIZE_32KB
1808 depends on CPU_CAVIUM_OCTEON
1810 Using 32kB page size will result in higher performance kernel at
1811 the price of higher memory consumption. This option is available
1812 only on cnMIPS cores. Note that you will need a suitable Linux
1813 distribution to support this.
1815 config PAGE_SIZE_64KB
1817 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1819 Using 64kB page size will result in higher performance kernel at
1820 the price of higher memory consumption. This option is available on
1821 all non-R3000 family processor. Not that at the time of this
1822 writing this option is still high experimental.
1826 config FORCE_MAX_ZONEORDER
1827 int "Maximum zone order"
1828 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1829 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1830 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1831 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1832 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1833 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1837 The kernel memory allocator divides physically contiguous memory
1838 blocks into "zones", where each zone is a power of two number of
1839 pages. This option selects the largest power of two that the kernel
1840 keeps in the memory allocator. If you need to allocate very large
1841 blocks of physically contiguous memory, then you may need to
1842 increase this value.
1844 This config option is actually maximum order plus one. For example,
1845 a value of 11 means that the largest free memory block is 2^10 pages.
1847 The page size is not necessarily 4KB. Keep this in mind
1848 when choosing a value for this option.
1853 config IP22_CPU_SCACHE
1858 # Support for a MIPS32 / MIPS64 style S-caches
1860 config MIPS_CPU_SCACHE
1864 config R5000_CPU_SCACHE
1868 config RM7000_CPU_SCACHE
1872 config SIBYTE_DMA_PAGEOPS
1873 bool "Use DMA to clear/copy pages"
1876 Instead of using the CPU to zero and copy pages, use a Data Mover
1877 channel. These DMA channels are otherwise unused by the standard
1878 SiByte Linux port. Seems to give a small performance benefit.
1880 config CPU_HAS_PREFETCH
1883 config CPU_GENERIC_DUMP_TLB
1885 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1888 prompt "MIPS MT options"
1890 config MIPS_MT_DISABLED
1891 bool "Disable multithreading support."
1893 Use this option if your workload can't take advantage of
1894 MIPS hardware multithreading support. On systems that don't have
1895 the option of an MT-enabled processor this option will be the only
1896 option in this menu.
1899 bool "Use 1 TC on each available VPE for SMP"
1900 depends on SYS_SUPPORTS_MULTITHREADING
1901 select CPU_MIPSR2_IRQ_VI
1902 select CPU_MIPSR2_IRQ_EI
1904 select NR_CPUS_DEFAULT_2
1906 select SYS_SUPPORTS_SCHED_SMT if SMP
1907 select SYS_SUPPORTS_SMP
1910 This is a kernel model which is known a VSMP but lately has been
1911 marketesed into SMVP.
1912 Virtual SMP uses the processor's VPEs to implement virtual
1913 processors. In currently available configuration of the 34K processor
1914 this allows for a dual processor. Both processors will share the same
1915 primary caches; each will obtain the half of the TLB for it's own
1916 exclusive use. For a layman this model can be described as similar to
1917 what Intel calls Hyperthreading.
1919 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1922 bool "SMTC: Use all TCs on all VPEs for SMP"
1923 depends on CPU_MIPS32_R2
1924 #depends on CPU_MIPS64_R2 # once there is hardware ...
1925 depends on SYS_SUPPORTS_MULTITHREADING
1926 select CPU_MIPSR2_IRQ_VI
1927 select CPU_MIPSR2_IRQ_EI
1929 select NR_CPUS_DEFAULT_8
1931 select SYS_SUPPORTS_SMP
1934 This is a kernel model which is known a SMTC or lately has been
1935 marketesed into SMVP.
1936 is presenting the available TC's of the core as processors to Linux.
1937 On currently available 34K processors this means a Linux system will
1938 see up to 5 processors. The implementation of the SMTC kernel differs
1939 significantly from VSMP and cannot efficiently coexist in the same
1940 kernel binary so the choice between VSMP and SMTC is a compile time
1943 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1951 bool "SMT (multithreading) scheduler support"
1952 depends on SYS_SUPPORTS_SCHED_SMT
1955 SMT scheduler support improves the CPU scheduler's decision making
1956 when dealing with MIPS MT enabled cores at a cost of slightly
1957 increased overhead in some places. If unsure say N here.
1959 config SYS_SUPPORTS_SCHED_SMT
1963 config SYS_SUPPORTS_MULTITHREADING
1966 config MIPS_MT_FPAFF
1967 bool "Dynamic FPU affinity for FP-intensive threads"
1969 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1971 config MIPS_VPE_LOADER
1972 bool "VPE loader support."
1973 depends on SYS_SUPPORTS_MULTITHREADING
1974 select CPU_MIPSR2_IRQ_VI
1975 select CPU_MIPSR2_IRQ_EI
1978 Includes a loader for loading an elf relocatable object
1979 onto another VPE and running it.
1981 config MIPS_MT_SMTC_IM_BACKSTOP
1982 bool "Use per-TC register bits as backstop for inhibited IM bits"
1983 depends on MIPS_MT_SMTC
1986 To support multiple TC microthreads acting as "CPUs" within
1987 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1988 during interrupt handling. To support legacy drivers and interrupt
1989 controller management code, SMTC has a "backstop" to track and
1990 if necessary restore the interrupt mask. This has some performance
1991 impact on interrupt service overhead.
1993 config MIPS_MT_SMTC_IRQAFF
1994 bool "Support IRQ affinity API"
1995 depends on MIPS_MT_SMTC
1998 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1999 for SMTC Linux kernel. Requires platform support, of which
2000 an example can be found in the MIPS kernel i8259 and Malta
2001 platform code. Adds some overhead to interrupt dispatch, and
2002 should be used only if you know what you are doing.
2004 config MIPS_VPE_LOADER_TOM
2005 bool "Load VPE program into memory hidden from linux"
2006 depends on MIPS_VPE_LOADER
2009 The loader can use memory that is present but has been hidden from
2010 Linux using the kernel command line option "mem=xxMB". It's up to
2011 you to ensure the amount you put in the option and the space your
2012 program requires is less or equal to the amount physically present.
2014 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2015 config MIPS_VPE_APSP_API
2016 bool "Enable support for AP/SP API (RTLX)"
2017 depends on MIPS_VPE_LOADER
2020 config MIPS_APSP_KSPD
2022 depends on MIPS_VPE_APSP_API
2025 KSPD is a kernel daemon that accepts syscall requests from the SP
2026 side, actions them and returns the results. It also handles the
2027 "exit" syscall notifying other kernel modules the SP program is
2028 exiting. You probably want to say yes here.
2031 bool "MIPS CMP framework support"
2032 depends on SYS_SUPPORTS_MIPS_CMP
2034 select SYS_SUPPORTS_SMP
2035 select SYS_SUPPORTS_SCHED_SMT if SMP
2036 select WEAK_ORDERING
2039 This is a placeholder option for the GCMP work. It will need to
2040 be handled differently...
2042 config SB1_PASS_1_WORKAROUNDS
2044 depends on CPU_SB1_PASS_1
2047 config SB1_PASS_2_WORKAROUNDS
2049 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2052 config SB1_PASS_2_1_WORKAROUNDS
2054 depends on CPU_SB1 && CPU_SB1_PASS_2
2057 config 64BIT_PHYS_ADDR
2060 config ARCH_PHYS_ADDR_T_64BIT
2061 def_bool 64BIT_PHYS_ADDR
2063 config CPU_HAS_SMARTMIPS
2064 depends on SYS_SUPPORTS_SMARTMIPS
2065 bool "Support for the SmartMIPS ASE"
2067 SmartMIPS is a extension of the MIPS32 architecture aimed at
2068 increased security at both hardware and software level for
2069 smartcards. Enabling this option will allow proper use of the
2070 SmartMIPS instructions by Linux applications. However a kernel with
2071 this option will not work on a MIPS core without SmartMIPS core. If
2072 you don't know you probably don't have SmartMIPS and should say N
2082 # Vectored interrupt mode is an R2 feature
2084 config CPU_MIPSR2_IRQ_VI
2088 # Extended interrupt mode is an R2 feature
2090 config CPU_MIPSR2_IRQ_EI
2095 depends on !CPU_R3000
2101 config CPU_DADDI_WORKAROUNDS
2104 config CPU_R4000_WORKAROUNDS
2106 select CPU_R4400_WORKAROUNDS
2108 config CPU_R4400_WORKAROUNDS
2112 # - Highmem only makes sense for the 32-bit kernel.
2113 # - The current highmem code will only work properly on physically indexed
2114 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2115 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2116 # moment we protect the user and offer the highmem option only on machines
2117 # where it's known to be safe. This will not offer highmem on a few systems
2118 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2119 # indexed CPUs but we're playing safe.
2120 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2121 # know they might have memory configurations that could make use of highmem
2125 bool "High Memory Support"
2126 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2128 config CPU_SUPPORTS_HIGHMEM
2131 config SYS_SUPPORTS_HIGHMEM
2134 config SYS_SUPPORTS_SMARTMIPS
2137 config ARCH_FLATMEM_ENABLE
2139 depends on !NUMA && !CPU_LOONGSON2
2141 config ARCH_DISCONTIGMEM_ENABLE
2143 default y if SGI_IP27
2145 Say Y to support efficient handling of discontiguous physical memory,
2146 for architectures which are either NUMA (Non-Uniform Memory Access)
2147 or have huge holes in the physical address space for other reasons.
2148 See <file:Documentation/vm/numa> for more.
2150 config ARCH_SPARSEMEM_ENABLE
2152 select SPARSEMEM_STATIC
2156 depends on SYS_SUPPORTS_NUMA
2158 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2159 Access). This option improves performance on systems with more
2160 than two nodes; on two node systems it is generally better to
2161 leave it disabled; on single node systems disable this option
2164 config SYS_SUPPORTS_NUMA
2170 depends on NEED_MULTIPLE_NODES
2172 config HW_PERF_EVENTS
2173 bool "Enable hardware performance counter support for perf events"
2174 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2177 Enable hardware performance counter support for perf events. If
2178 disabled, perf events will use software events only.
2183 bool "Multi-Processing support"
2184 depends on SYS_SUPPORTS_SMP
2186 select USE_GENERIC_SMP_HELPERS
2188 This enables support for systems with more than one CPU. If you have
2189 a system with only one CPU, like most personal computers, say N. If
2190 you have a system with more than one CPU, say Y.
2192 If you say N here, the kernel will run on single and multiprocessor
2193 machines, but will use only one CPU of a multiprocessor machine. If
2194 you say Y here, the kernel will run on many, but not all,
2195 singleprocessor machines. On a singleprocessor machine, the kernel
2196 will run faster if you say N here.
2198 People using multiprocessor machines who say Y here should also say
2199 Y to "Enhanced Real Time Clock Support", below.
2201 See also the SMP-HOWTO available at
2202 <http://www.tldp.org/docs.html#howto>.
2204 If you don't know what to do here, say N.
2209 config SYS_SUPPORTS_MIPS_CMP
2212 config SYS_SUPPORTS_SMP
2215 config NR_CPUS_DEFAULT_1
2218 config NR_CPUS_DEFAULT_2
2221 config NR_CPUS_DEFAULT_4
2224 config NR_CPUS_DEFAULT_8
2227 config NR_CPUS_DEFAULT_16
2230 config NR_CPUS_DEFAULT_32
2233 config NR_CPUS_DEFAULT_64
2237 int "Maximum number of CPUs (2-64)"
2238 range 1 64 if NR_CPUS_DEFAULT_1
2240 default "1" if NR_CPUS_DEFAULT_1
2241 default "2" if NR_CPUS_DEFAULT_2
2242 default "4" if NR_CPUS_DEFAULT_4
2243 default "8" if NR_CPUS_DEFAULT_8
2244 default "16" if NR_CPUS_DEFAULT_16
2245 default "32" if NR_CPUS_DEFAULT_32
2246 default "64" if NR_CPUS_DEFAULT_64
2248 This allows you to specify the maximum number of CPUs which this
2249 kernel will support. The maximum supported value is 32 for 32-bit
2250 kernel and 64 for 64-bit kernels; the minimum value which makes
2251 sense is 1 for Qemu (useful only for kernel debugging purposes)
2252 and 2 for all others.
2254 This is purely to save memory - each supported CPU adds
2255 approximately eight kilobytes to the kernel image. For best
2256 performance should round up your number of processors to the next
2260 # Timer Interrupt Frequency Configuration
2264 prompt "Timer frequency"
2267 Allows the configuration of the timer frequency.
2270 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2273 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2276 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2279 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2282 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2285 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2288 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2292 config SYS_SUPPORTS_48HZ
2295 config SYS_SUPPORTS_100HZ
2298 config SYS_SUPPORTS_128HZ
2301 config SYS_SUPPORTS_250HZ
2304 config SYS_SUPPORTS_256HZ
2307 config SYS_SUPPORTS_1000HZ
2310 config SYS_SUPPORTS_1024HZ
2313 config SYS_SUPPORTS_ARBIT_HZ
2315 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2316 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2317 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2318 !SYS_SUPPORTS_1024HZ
2323 default 100 if HZ_100
2324 default 128 if HZ_128
2325 default 250 if HZ_250
2326 default 256 if HZ_256
2327 default 1000 if HZ_1000
2328 default 1024 if HZ_1024
2330 source "kernel/Kconfig.preempt"
2333 bool "Kexec system call (EXPERIMENTAL)"
2334 depends on EXPERIMENTAL
2336 kexec is a system call that implements the ability to shutdown your
2337 current kernel, and to start another kernel. It is like a reboot
2338 but it is independent of the system firmware. And like a reboot
2339 you can start any kernel with it, not just Linux.
2341 The name comes from the similarity to the exec system call.
2343 It is an ongoing process to be certain the hardware in a machine
2344 is properly shutdown, so do not be surprised if this code does not
2345 initially work for you. It may help to enable device hotplugging
2346 support. As of this writing the exact hardware interface is
2347 strongly in flux, so no good recommendation can be made.
2350 bool "Enable seccomp to safely compute untrusted bytecode"
2354 This kernel feature is useful for number crunching applications
2355 that may need to compute untrusted bytecode during their
2356 execution. By using pipes or other transports made available to
2357 the process as file descriptors supporting the read/write
2358 syscalls, it's possible to isolate those applications in
2359 their own address space using seccomp. Once seccomp is
2360 enabled via /proc/<pid>/seccomp, it cannot be disabled
2361 and the task is only allowed to execute a few safe syscalls
2362 defined by each seccomp mode.
2364 If unsure, say Y. Only embedded should say N here.
2367 bool "Flattened Device Tree support"
2369 select OF_EARLY_FLATTREE
2372 Include support for flattened device tree machine descriptions.
2376 config LOCKDEP_SUPPORT
2380 config STACKTRACE_SUPPORT
2384 source "init/Kconfig"
2386 source "kernel/Kconfig.freezer"
2388 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2396 bool "Support for PCI controller"
2397 depends on HW_HAS_PCI
2399 select GENERIC_PCI_IOMAP
2400 select NO_GENERIC_PCI_IOPORT_MAP
2402 Find out whether you have a PCI motherboard. PCI is the name of a
2403 bus system, i.e. the way the CPU talks to the other stuff inside
2404 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2410 source "drivers/pci/Kconfig"
2412 source "drivers/pci/pcie/Kconfig"
2415 # ISA support is now enabled via select. Too many systems still have the one
2416 # or other ISA chip on the board that users don't know about so don't expect
2417 # users to choose the right thing ...
2424 depends on HW_HAS_EISA
2426 select GENERIC_ISA_DMA
2428 The Extended Industry Standard Architecture (EISA) bus was
2429 developed as an open alternative to the IBM MicroChannel bus.
2431 The EISA bus provided some of the features of the IBM MicroChannel
2432 bus while maintaining backward compatibility with cards made for
2433 the older ISA bus. The EISA bus saw limited use between 1988 and
2434 1995 when it was made obsolete by the PCI bus.
2436 Say Y here if you are building a kernel for an EISA-based machine.
2440 source "drivers/eisa/Kconfig"
2443 bool "TURBOchannel support"
2444 depends on MACH_DECSTATION
2446 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2447 processors. TURBOchannel programming specifications are available
2449 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2451 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2452 Linux driver support status is documented at:
2453 <http://www.linux-mips.org/wiki/DECstation>
2463 select MIPS_EXTERNAL_TIMER
2468 source "drivers/pcmcia/Kconfig"
2470 source "drivers/pci/hotplug/Kconfig"
2473 bool "RapidIO support"
2477 If you say Y here, the kernel will include drivers and
2478 infrastructure code to support RapidIO interconnect devices.
2480 source "drivers/rapidio/Kconfig"
2484 menu "Executable file formats"
2486 source "fs/Kconfig.binfmt"
2491 config MIPS32_COMPAT
2492 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2495 Select this option if you want Linux/MIPS 32-bit binary
2496 compatibility. Since all software available for Linux/MIPS is
2497 currently 32-bit you should say Y here.
2501 depends on MIPS32_COMPAT
2502 select ARCH_WANT_OLD_COMPAT_IPC
2505 config SYSVIPC_COMPAT
2507 depends on COMPAT && SYSVIPC
2511 bool "Kernel support for o32 binaries"
2512 depends on MIPS32_COMPAT
2514 Select this option if you want to run o32 binaries. These are pure
2515 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2516 existing binaries are in this format.
2521 bool "Kernel support for n32 binaries"
2522 depends on MIPS32_COMPAT
2524 Select this option if you want to run n32 binaries. These are
2525 64-bit binaries using 32-bit quantities for addressing and certain
2526 data that would normally be 64-bit. They are used in special
2533 default y if MIPS32_O32 || MIPS32_N32
2537 menu "Power management options"
2539 config ARCH_HIBERNATION_POSSIBLE
2541 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2543 config ARCH_SUSPEND_POSSIBLE
2545 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2547 source "kernel/power/Kconfig"
2551 source "arch/mips/kernel/cpufreq/Kconfig"
2553 source "net/Kconfig"
2555 source "drivers/Kconfig"
2559 source "arch/mips/Kconfig.debug"
2561 source "security/Kconfig"
2563 source "crypto/Kconfig"
2565 source "lib/Kconfig"