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 HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
23 select RTC_LIB if !MACH_LOONGSON
24 select GENERIC_ATOMIC64 if !64BIT
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
27 select HAVE_DMA_API_DEBUG
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
31 select HAVE_ARCH_JUMP_LABEL
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select IRQ_FORCED_THREADING
35 select HAVE_MEMBLOCK_NODE_MAP
36 select ARCH_DISCARD_MEMBLOCK
37 select GENERIC_SMP_IDLE_THREAD
38 select BUILDTIME_EXTABLE_SORT
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_CMOS_UPDATE
41 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL
43 select MODULES_USE_ELF_RELA if 64BIT
44 select GENERIC_KERNEL_THREAD
45 select GENERIC_KERNEL_EXECVE
47 menu "Machine selection"
57 bool "Alchemy processor based machines"
58 select 64BIT_PHYS_ADDR
62 select SYS_HAS_CPU_MIPS32_R1
63 select SYS_SUPPORTS_32BIT_KERNEL
64 select SYS_SUPPORTS_APM_EMULATION
66 select ARCH_WANT_OPTIONAL_GPIOLIB
67 select SYS_SUPPORTS_ZBOOT
68 select USB_ARCH_HAS_OHCI
69 select USB_ARCH_HAS_EHCI
72 bool "Texas Instruments AR7"
74 select DMA_NONCOHERENT
80 select SYS_HAS_CPU_MIPS32_R1
81 select SYS_HAS_EARLY_PRINTK
82 select SYS_SUPPORTS_32BIT_KERNEL
83 select SYS_SUPPORTS_LITTLE_ENDIAN
84 select SYS_SUPPORTS_ZBOOT_UART16550
85 select ARCH_REQUIRE_GPIOLIB
89 Support for the Texas Instruments AR7 System-on-a-Chip
90 family: TNETD7100, 7200 and 7300.
93 bool "Atheros AR71XX/AR724X/AR913X based boards"
94 select ARCH_REQUIRE_GPIOLIB
98 select DMA_NONCOHERENT
102 select SYS_HAS_CPU_MIPS32_R2
103 select SYS_HAS_EARLY_PRINTK
104 select SYS_SUPPORTS_32BIT_KERNEL
105 select SYS_SUPPORTS_BIG_ENDIAN
107 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
110 bool "Broadcom BCM47XX based boards"
111 select ARCH_WANT_OPTIONAL_GPIOLIB
114 select DMA_NONCOHERENT
118 select SYS_SUPPORTS_32BIT_KERNEL
119 select SYS_SUPPORTS_LITTLE_ENDIAN
120 select SYS_HAS_EARLY_PRINTK
122 Support for BCM47XX based boards
125 bool "Broadcom BCM63XX based boards"
128 select DMA_NONCOHERENT
130 select SYS_HAS_CPU_MIPS32_R1
131 select SYS_SUPPORTS_32BIT_KERNEL
132 select SYS_SUPPORTS_BIG_ENDIAN
133 select SYS_HAS_EARLY_PRINTK
135 select ARCH_REQUIRE_GPIOLIB
138 Support for BCM63XX based boards
145 select DMA_NONCOHERENT
151 select PCI_GT64XXX_PCI0
153 select SYS_HAS_CPU_NEVADA
154 select SYS_HAS_EARLY_PRINTK
155 select SYS_SUPPORTS_32BIT_KERNEL
156 select SYS_SUPPORTS_64BIT_KERNEL
157 select SYS_SUPPORTS_LITTLE_ENDIAN
159 config MACH_DECSTATION
166 select CPU_DADDI_WORKAROUNDS if 64BIT
167 select CPU_R4000_WORKAROUNDS if 64BIT
168 select CPU_R4400_WORKAROUNDS if 64BIT
169 select DMA_NONCOHERENT
172 select SYS_HAS_CPU_R3000
173 select SYS_HAS_CPU_R4X00
174 select SYS_SUPPORTS_32BIT_KERNEL
175 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
176 select SYS_SUPPORTS_LITTLE_ENDIAN
177 select SYS_SUPPORTS_128HZ
178 select SYS_SUPPORTS_256HZ
179 select SYS_SUPPORTS_1024HZ
181 This enables support for DEC's MIPS based workstations. For details
182 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
183 DECstation porting pages on <http://decstation.unix-ag.org/>.
185 If you have one of the following DECstation Models you definitely
186 want to choose R4xx0 for the CPU Type:
193 otherwise choose R3000.
196 bool "Jazz family of machines"
199 select ARCH_MAY_HAVE_PC_FDC
202 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
203 select GENERIC_ISA_DMA
204 select HAVE_PCSPKR_PLATFORM
209 select SYS_HAS_CPU_R4X00
210 select SYS_SUPPORTS_32BIT_KERNEL
211 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
212 select SYS_SUPPORTS_100HZ
214 This a family of machines based on the MIPS R4030 chipset which was
215 used by several vendors to build RISC/os and Windows NT workstations.
216 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
217 Olivetti M700-10 workstations.
220 bool "Ingenic JZ4740 based machines"
221 select SYS_HAS_CPU_MIPS32_R1
222 select SYS_SUPPORTS_32BIT_KERNEL
223 select SYS_SUPPORTS_LITTLE_ENDIAN
224 select SYS_SUPPORTS_ZBOOT_UART16550
225 select DMA_NONCOHERENT
228 select ARCH_REQUIRE_GPIOLIB
229 select SYS_HAS_EARLY_PRINTK
232 select GENERIC_IRQ_CHIP
235 bool "Lantiq based platforms"
236 select DMA_NONCOHERENT
240 select SYS_HAS_CPU_MIPS32_R1
241 select SYS_HAS_CPU_MIPS32_R2
242 select SYS_SUPPORTS_BIG_ENDIAN
243 select SYS_SUPPORTS_32BIT_KERNEL
244 select SYS_SUPPORTS_MULTITHREADING
245 select SYS_HAS_EARLY_PRINTK
246 select ARCH_REQUIRE_GPIOLIB
249 select HAVE_MACH_CLKDEV
253 select PINCTRL_LANTIQ
256 bool "LASAT Networks platforms"
259 select DMA_NONCOHERENT
260 select SYS_HAS_EARLY_PRINTK
263 select PCI_GT64XXX_PCI0
265 select R5000_CPU_SCACHE
266 select SYS_HAS_CPU_R5000
267 select SYS_SUPPORTS_32BIT_KERNEL
268 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
269 select SYS_SUPPORTS_LITTLE_ENDIAN
272 bool "Loongson family of machines"
273 select SYS_SUPPORTS_ZBOOT
275 This enables the support of Loongson family of machines.
277 Loongson is a family of general-purpose MIPS-compatible CPUs.
278 developed at Institute of Computing Technology (ICT),
279 Chinese Academy of Sciences (CAS) in the People's Republic
280 of China. The chief architect is Professor Weiwu Hu.
282 config MACH_LOONGSON1
283 bool "Loongson 1 family of machines"
284 select SYS_SUPPORTS_ZBOOT
286 This enables support for the Loongson 1 based machines.
288 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
289 the ICT (Institute of Computing Technology) and the Chinese Academy
293 bool "MIPS Malta board"
294 select ARCH_MAY_HAVE_PC_FDC
299 select DMA_NONCOHERENT
300 select GENERIC_ISA_DMA
301 select HAVE_PCSPKR_PLATFORM
307 select MIPS_BOARDS_GEN
309 select MIPS_CPU_SCACHE
310 select PCI_GT64XXX_PCI0
313 select SYS_HAS_CPU_MIPS32_R1
314 select SYS_HAS_CPU_MIPS32_R2
315 select SYS_HAS_CPU_MIPS64_R1
316 select SYS_HAS_CPU_MIPS64_R2
317 select SYS_HAS_CPU_NEVADA
318 select SYS_HAS_CPU_RM7000
319 select SYS_HAS_EARLY_PRINTK
320 select SYS_SUPPORTS_32BIT_KERNEL
321 select SYS_SUPPORTS_64BIT_KERNEL
322 select SYS_SUPPORTS_BIG_ENDIAN
323 select SYS_SUPPORTS_LITTLE_ENDIAN
324 select SYS_SUPPORTS_MIPS_CMP
325 select SYS_SUPPORTS_MULTITHREADING
326 select SYS_SUPPORTS_SMARTMIPS
327 select SYS_SUPPORTS_ZBOOT
329 This enables support for the MIPS Technologies Malta evaluation
333 bool "MIPS SEAD3 board"
338 select CPU_MIPSR2_IRQ_VI
339 select CPU_MIPSR2_IRQ_EI
340 select DMA_NONCOHERENT
343 select MIPS_BOARDS_GEN
344 select MIPS_CPU_SCACHE
346 select SYS_HAS_CPU_MIPS32_R1
347 select SYS_HAS_CPU_MIPS32_R2
348 select SYS_HAS_CPU_MIPS64_R1
349 select SYS_HAS_EARLY_PRINTK
350 select SYS_SUPPORTS_32BIT_KERNEL
351 select SYS_SUPPORTS_64BIT_KERNEL
352 select SYS_SUPPORTS_BIG_ENDIAN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354 select SYS_SUPPORTS_SMARTMIPS
355 select USB_ARCH_HAS_EHCI
356 select USB_EHCI_BIG_ENDIAN_DESC
357 select USB_EHCI_BIG_ENDIAN_MMIO
359 This enables support for the MIPS Technologies SEAD3 evaluation
363 bool "NEC EMMA2RH Mark-eins board"
367 This enables support for the NEC Electronics Mark-eins boards.
370 bool "NEC VR4100 series based machines"
373 select SYS_HAS_CPU_VR41XX
374 select ARCH_REQUIRE_GPIOLIB
377 bool "NXP STB220 board"
380 Support for NXP Semiconductors STB220 Development Board.
387 Support for NXP Semiconductors STB225 Development Board.
390 bool "NXP PNX8550 based JBS board"
392 select SYS_SUPPORTS_LITTLE_ENDIAN
394 config PNX8550_STB810
395 bool "NXP PNX8550 based STB810 board"
397 select SYS_SUPPORTS_LITTLE_ENDIAN
400 bool "PMC-Sierra MSP chipsets"
401 depends on EXPERIMENTAL
404 select DMA_NONCOHERENT
406 select NO_EXCEPT_FILL
408 select SYS_HAS_CPU_MIPS32_R1
409 select SYS_HAS_CPU_MIPS32_R2
410 select SYS_SUPPORTS_32BIT_KERNEL
411 select SYS_SUPPORTS_BIG_ENDIAN
414 select SERIAL_8250_CONSOLE
416 This adds support for the PMC-Sierra family of Multi-Service
417 Processor System-On-A-Chips. These parts include a number
418 of integrated peripherals, interfaces and DSPs in addition to
419 a variety of MIPS cores.
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 FW_ARC if CPU_LITTLE_ENDIAN
658 select FW_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
760 select SYS_SUPPORTS_HOTPLUG_CPU
761 select SYS_HAS_EARLY_PRINTK
762 select SYS_HAS_CPU_CAVIUM_OCTEON
765 select ARCH_SUPPORTS_MSI
767 select USB_ARCH_HAS_OHCI
768 select USB_ARCH_HAS_EHCI
771 This option supports all of the Octeon reference boards from Cavium
772 Networks. It builds a kernel that dynamically determines the Octeon
773 CPU type and supports all known board reference implementations.
774 Some of the supported boards are:
781 Say Y here for most Octeon reference boards.
784 bool "Netlogic XLR/XLS based systems"
785 depends on EXPERIMENTAL
788 select SYS_HAS_CPU_XLR
789 select SYS_SUPPORTS_SMP
792 select SYS_SUPPORTS_32BIT_KERNEL
793 select SYS_SUPPORTS_64BIT_KERNEL
794 select 64BIT_PHYS_ADDR
795 select SYS_SUPPORTS_BIG_ENDIAN
796 select SYS_SUPPORTS_HIGHMEM
798 select NR_CPUS_DEFAULT_32
802 select ARCH_SUPPORTS_MSI
803 select ZONE_DMA32 if 64BIT
805 select SYS_HAS_EARLY_PRINTK
806 select USB_ARCH_HAS_OHCI if USB_SUPPORT
807 select USB_ARCH_HAS_EHCI if USB_SUPPORT
809 Support for systems based on Netlogic XLR and XLS processors.
810 Say Y here if you have a XLR or XLS based board.
813 bool "Netlogic XLP based systems"
814 depends on EXPERIMENTAL
817 select SYS_HAS_CPU_XLP
818 select SYS_SUPPORTS_SMP
820 select SYS_SUPPORTS_32BIT_KERNEL
821 select SYS_SUPPORTS_64BIT_KERNEL
822 select 64BIT_PHYS_ADDR
823 select SYS_SUPPORTS_BIG_ENDIAN
824 select SYS_SUPPORTS_LITTLE_ENDIAN
825 select SYS_SUPPORTS_HIGHMEM
827 select NR_CPUS_DEFAULT_32
831 select ZONE_DMA32 if 64BIT
833 select SYS_HAS_EARLY_PRINTK
836 This board is based on Netlogic XLP Processor.
837 Say Y here if you have a XLP based board.
841 source "arch/mips/alchemy/Kconfig"
842 source "arch/mips/ath79/Kconfig"
843 source "arch/mips/bcm47xx/Kconfig"
844 source "arch/mips/bcm63xx/Kconfig"
845 source "arch/mips/jazz/Kconfig"
846 source "arch/mips/jz4740/Kconfig"
847 source "arch/mips/lantiq/Kconfig"
848 source "arch/mips/lasat/Kconfig"
849 source "arch/mips/pmc-sierra/Kconfig"
850 source "arch/mips/powertv/Kconfig"
851 source "arch/mips/sgi-ip27/Kconfig"
852 source "arch/mips/sibyte/Kconfig"
853 source "arch/mips/txx9/Kconfig"
854 source "arch/mips/vr41xx/Kconfig"
855 source "arch/mips/cavium-octeon/Kconfig"
856 source "arch/mips/loongson/Kconfig"
857 source "arch/mips/loongson1/Kconfig"
858 source "arch/mips/netlogic/Kconfig"
862 config RWSEM_GENERIC_SPINLOCK
866 config RWSEM_XCHGADD_ALGORITHM
869 config ARCH_HAS_ILOG2_U32
873 config ARCH_HAS_ILOG2_U64
877 config GENERIC_HWEIGHT
881 config GENERIC_CALIBRATE_DELAY
885 config SCHED_OMIT_FRAME_POINTER
890 # Select some configuration options automatically based on user selections.
895 config ARCH_MAY_HAVE_PC_FDC
936 select ARCH_REQUIRE_GPIOLIB
942 config ARCH_DMA_ADDR_T_64BIT
943 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
948 config DMA_NONCOHERENT
950 select NEED_DMA_MAP_STATE
952 config NEED_DMA_MAP_STATE
955 config SYS_HAS_EARLY_PRINTK
959 bool "Support for hot-pluggable CPUs"
960 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
962 Say Y here to allow turning CPUs off and on. CPUs can be
963 controlled through /sys/devices/system/cpu.
964 (Note: power management support will enable this option
965 automatically on SMP systems. )
966 Say N if you want to disable CPU hotplug.
968 config SYS_SUPPORTS_HOTPLUG_CPU
983 config MIPS_DISABLE_OBSOLETE_IDE
995 config GENERIC_ISA_DMA
997 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1000 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1002 select GENERIC_ISA_DMA
1010 config HOLES_IN_ZONE
1014 # Endianness selection. Sufficiently obscure so many users don't know what to
1015 # answer,so we try hard to limit the available choices. Also the use of a
1016 # choice statement should be more obvious to the user.
1019 prompt "Endianness selection"
1021 Some MIPS machines can be configured for either little or big endian
1022 byte order. These modes require different kernels and a different
1023 Linux distribution. In general there is one preferred byteorder for a
1024 particular system but some systems are just as commonly used in the
1025 one or the other endianness.
1027 config CPU_BIG_ENDIAN
1029 depends on SYS_SUPPORTS_BIG_ENDIAN
1031 config CPU_LITTLE_ENDIAN
1032 bool "Little endian"
1033 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1041 config SYS_SUPPORTS_APM_EMULATION
1044 config SYS_SUPPORTS_BIG_ENDIAN
1047 config SYS_SUPPORTS_LITTLE_ENDIAN
1050 config SYS_SUPPORTS_HUGETLBFS
1052 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1055 config MIPS_HUGE_TLB_SUPPORT
1056 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1079 config MIPS_BOARDS_GEN
1082 config PCI_GT64XXX_PCI0
1085 config NO_EXCEPT_FILL
1092 select DMA_NONCOHERENT
1094 select SWAP_IO_SPACE
1095 select SYS_HAS_CPU_R5500
1096 select SYS_SUPPORTS_32BIT_KERNEL
1097 select SYS_SUPPORTS_64BIT_KERNEL
1098 select SYS_SUPPORTS_BIG_ENDIAN
1105 select DMA_NONCOHERENT
1106 select SYS_HAS_CPU_MIPS32_R2
1107 select SYS_SUPPORTS_32BIT_KERNEL
1108 select SYS_SUPPORTS_LITTLE_ENDIAN
1109 select SYS_SUPPORTS_BIG_ENDIAN
1111 select CPU_MIPSR2_IRQ_VI
1123 select DMA_NONCOHERENT
1125 select SYS_HAS_CPU_MIPS32_R1
1126 select SYS_HAS_EARLY_PRINTK
1127 select SYS_SUPPORTS_32BIT_KERNEL
1130 config SWAP_IO_SPACE
1133 config SGI_HAS_INDYDOG
1145 config SGI_HAS_ZILOG
1148 config SGI_HAS_I8042
1151 config DEFAULT_SGI_PARTITION
1163 config MIPS_L1_CACHE_SHIFT
1165 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1166 default "6" if MIPS_CPU_SCACHE
1167 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1170 config HAVE_STD_PC_SERIAL_PORT
1174 bool "ARC console support"
1175 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1179 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1184 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1193 menu "CPU selection"
1199 config CPU_LOONGSON2E
1201 depends on SYS_HAS_CPU_LOONGSON2E
1202 select CPU_LOONGSON2
1204 The Loongson 2E processor implements the MIPS III instruction set
1205 with many extensions.
1207 It has an internal FPGA northbridge, which is compatible to
1210 config CPU_LOONGSON2F
1212 depends on SYS_HAS_CPU_LOONGSON2F
1213 select CPU_LOONGSON2
1215 select ARCH_REQUIRE_GPIOLIB
1217 The Loongson 2F processor implements the MIPS III instruction set
1218 with many extensions.
1220 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1221 have a similar programming interface with FPGA northbridge used in
1224 config CPU_LOONGSON1B
1226 depends on SYS_HAS_CPU_LOONGSON1B
1227 select CPU_LOONGSON1
1229 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1230 release 2 instruction set.
1232 config CPU_MIPS32_R1
1233 bool "MIPS32 Release 1"
1234 depends on SYS_HAS_CPU_MIPS32_R1
1235 select CPU_HAS_PREFETCH
1236 select CPU_SUPPORTS_32BIT_KERNEL
1237 select CPU_SUPPORTS_HIGHMEM
1239 Choose this option to build a kernel for release 1 or later of the
1240 MIPS32 architecture. Most modern embedded systems with a 32-bit
1241 MIPS processor are based on a MIPS32 processor. If you know the
1242 specific type of processor in your system, choose those that one
1243 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1244 Release 2 of the MIPS32 architecture is available since several
1245 years so chances are you even have a MIPS32 Release 2 processor
1246 in which case you should choose CPU_MIPS32_R2 instead for better
1249 config CPU_MIPS32_R2
1250 bool "MIPS32 Release 2"
1251 depends on SYS_HAS_CPU_MIPS32_R2
1252 select CPU_HAS_PREFETCH
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_HIGHMEM
1256 Choose this option to build a kernel for release 2 or later of the
1257 MIPS32 architecture. Most modern embedded systems with a 32-bit
1258 MIPS processor are based on a MIPS32 processor. If you know the
1259 specific type of processor in your system, choose those that one
1260 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1262 config CPU_MIPS64_R1
1263 bool "MIPS64 Release 1"
1264 depends on SYS_HAS_CPU_MIPS64_R1
1265 select CPU_HAS_PREFETCH
1266 select CPU_SUPPORTS_32BIT_KERNEL
1267 select CPU_SUPPORTS_64BIT_KERNEL
1268 select CPU_SUPPORTS_HIGHMEM
1269 select CPU_SUPPORTS_HUGEPAGES
1271 Choose this option to build a kernel for release 1 or later of the
1272 MIPS64 architecture. Many modern embedded systems with a 64-bit
1273 MIPS processor are based on a MIPS64 processor. If you know the
1274 specific type of processor in your system, choose those that one
1275 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1276 Release 2 of the MIPS64 architecture is available since several
1277 years so chances are you even have a MIPS64 Release 2 processor
1278 in which case you should choose CPU_MIPS64_R2 instead for better
1281 config CPU_MIPS64_R2
1282 bool "MIPS64 Release 2"
1283 depends on SYS_HAS_CPU_MIPS64_R2
1284 select CPU_HAS_PREFETCH
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_64BIT_KERNEL
1287 select CPU_SUPPORTS_HIGHMEM
1288 select CPU_SUPPORTS_HUGEPAGES
1290 Choose this option to build a kernel for release 2 or later of the
1291 MIPS64 architecture. Many modern embedded systems with a 64-bit
1292 MIPS processor are based on a MIPS64 processor. If you know the
1293 specific type of processor in your system, choose those that one
1294 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1298 depends on SYS_HAS_CPU_R3000
1300 select CPU_SUPPORTS_32BIT_KERNEL
1301 select CPU_SUPPORTS_HIGHMEM
1303 Please make sure to pick the right CPU type. Linux/MIPS is not
1304 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1305 *not* work on R4000 machines and vice versa. However, since most
1306 of the supported machines have an R4000 (or similar) CPU, R4x00
1307 might be a safe bet. If the resulting kernel does not work,
1308 try to recompile with R3000.
1312 depends on SYS_HAS_CPU_TX39XX
1313 select CPU_SUPPORTS_32BIT_KERNEL
1317 depends on SYS_HAS_CPU_VR41XX
1318 select CPU_SUPPORTS_32BIT_KERNEL
1319 select CPU_SUPPORTS_64BIT_KERNEL
1321 The options selects support for the NEC VR4100 series of processors.
1322 Only choose this option if you have one of these processors as a
1323 kernel built with this option will not run on any other type of
1324 processor or vice versa.
1328 depends on SYS_HAS_CPU_R4300
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1332 MIPS Technologies R4300-series processors.
1336 depends on SYS_HAS_CPU_R4X00
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_64BIT_KERNEL
1339 select CPU_SUPPORTS_HUGEPAGES
1341 MIPS Technologies R4000-series processors other than 4300, including
1342 the R4000, R4400, R4600, and 4700.
1346 depends on SYS_HAS_CPU_TX49XX
1347 select CPU_HAS_PREFETCH
1348 select CPU_SUPPORTS_32BIT_KERNEL
1349 select CPU_SUPPORTS_64BIT_KERNEL
1350 select CPU_SUPPORTS_HUGEPAGES
1354 depends on SYS_HAS_CPU_R5000
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1357 select CPU_SUPPORTS_HUGEPAGES
1359 MIPS Technologies R5000-series processors other than the Nevada.
1363 depends on SYS_HAS_CPU_R5432
1364 select CPU_SUPPORTS_32BIT_KERNEL
1365 select CPU_SUPPORTS_64BIT_KERNEL
1366 select CPU_SUPPORTS_HUGEPAGES
1370 depends on SYS_HAS_CPU_R5500
1371 select CPU_SUPPORTS_32BIT_KERNEL
1372 select CPU_SUPPORTS_64BIT_KERNEL
1373 select CPU_SUPPORTS_HUGEPAGES
1375 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1380 depends on EXPERIMENTAL
1381 depends on SYS_HAS_CPU_R6000
1382 select CPU_SUPPORTS_32BIT_KERNEL
1384 MIPS Technologies R6000 and R6000A series processors. Note these
1385 processors are extremely rare and the support for them is incomplete.
1389 depends on SYS_HAS_CPU_NEVADA
1390 select CPU_SUPPORTS_32BIT_KERNEL
1391 select CPU_SUPPORTS_64BIT_KERNEL
1392 select CPU_SUPPORTS_HUGEPAGES
1394 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1398 depends on EXPERIMENTAL
1399 depends on SYS_HAS_CPU_R8000
1400 select CPU_HAS_PREFETCH
1401 select CPU_SUPPORTS_64BIT_KERNEL
1403 MIPS Technologies R8000 processors. Note these processors are
1404 uncommon and the support for them is incomplete.
1408 depends on SYS_HAS_CPU_R10000
1409 select CPU_HAS_PREFETCH
1410 select CPU_SUPPORTS_32BIT_KERNEL
1411 select CPU_SUPPORTS_64BIT_KERNEL
1412 select CPU_SUPPORTS_HIGHMEM
1413 select CPU_SUPPORTS_HUGEPAGES
1415 MIPS Technologies R10000-series processors.
1419 depends on SYS_HAS_CPU_RM7000
1420 select CPU_HAS_PREFETCH
1421 select CPU_SUPPORTS_32BIT_KERNEL
1422 select CPU_SUPPORTS_64BIT_KERNEL
1423 select CPU_SUPPORTS_HIGHMEM
1424 select CPU_SUPPORTS_HUGEPAGES
1428 depends on SYS_HAS_CPU_SB1
1429 select CPU_SUPPORTS_32BIT_KERNEL
1430 select CPU_SUPPORTS_64BIT_KERNEL
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_HUGEPAGES
1433 select WEAK_ORDERING
1435 config CPU_CAVIUM_OCTEON
1436 bool "Cavium Octeon processor"
1437 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1438 select ARCH_SPARSEMEM_ENABLE
1439 select CPU_HAS_PREFETCH
1440 select CPU_SUPPORTS_64BIT_KERNEL
1441 select SYS_SUPPORTS_SMP
1442 select NR_CPUS_DEFAULT_16
1443 select WEAK_ORDERING
1444 select CPU_SUPPORTS_HIGHMEM
1445 select CPU_SUPPORTS_HUGEPAGES
1449 The Cavium Octeon processor is a highly integrated chip containing
1450 many ethernet hardware widgets for networking tasks. The processor
1451 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1452 Full details can be found at http://www.caviumnetworks.com.
1454 config CPU_BMIPS3300
1456 depends on SYS_HAS_CPU_BMIPS3300
1459 Broadcom BMIPS3300 processors.
1461 config CPU_BMIPS4350
1463 depends on SYS_HAS_CPU_BMIPS4350
1465 select SYS_SUPPORTS_SMP
1466 select SYS_SUPPORTS_HOTPLUG_CPU
1468 Broadcom BMIPS4350 ("VIPER") processors.
1470 config CPU_BMIPS4380
1472 depends on SYS_HAS_CPU_BMIPS4380
1474 select SYS_SUPPORTS_SMP
1475 select SYS_SUPPORTS_HOTPLUG_CPU
1477 Broadcom BMIPS4380 processors.
1479 config CPU_BMIPS5000
1481 depends on SYS_HAS_CPU_BMIPS5000
1483 select CPU_SUPPORTS_HIGHMEM
1484 select MIPS_CPU_SCACHE
1485 select SYS_SUPPORTS_SMP
1486 select SYS_SUPPORTS_HOTPLUG_CPU
1488 Broadcom BMIPS5000 processors.
1491 bool "Netlogic XLR SoC"
1492 depends on SYS_HAS_CPU_XLR
1493 select CPU_SUPPORTS_32BIT_KERNEL
1494 select CPU_SUPPORTS_64BIT_KERNEL
1495 select CPU_SUPPORTS_HIGHMEM
1496 select CPU_SUPPORTS_HUGEPAGES
1497 select WEAK_ORDERING
1498 select WEAK_REORDERING_BEYOND_LLSC
1500 Netlogic Microsystems XLR/XLS processors.
1503 bool "Netlogic XLP SoC"
1504 depends on SYS_HAS_CPU_XLP
1505 select CPU_SUPPORTS_32BIT_KERNEL
1506 select CPU_SUPPORTS_64BIT_KERNEL
1507 select CPU_SUPPORTS_HIGHMEM
1509 select WEAK_ORDERING
1510 select WEAK_REORDERING_BEYOND_LLSC
1511 select CPU_HAS_PREFETCH
1514 Netlogic Microsystems XLP processors.
1518 config CPU_NOP_WORKAROUNDS
1521 config CPU_JUMP_WORKAROUNDS
1524 config CPU_LOONGSON2F_WORKAROUNDS
1525 bool "Loongson 2F Workarounds"
1527 select CPU_NOP_WORKAROUNDS
1528 select CPU_JUMP_WORKAROUNDS
1530 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1531 require workarounds. Without workarounds the system may hang
1532 unexpectedly. For more information please refer to the gas
1533 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1535 Loongson 2F03 and later have fixed these issues and no workarounds
1536 are needed. The workarounds have no significant side effect on them
1537 but may decrease the performance of the system so this option should
1538 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1541 If unsure, please say Y.
1542 endif # CPU_LOONGSON2F
1544 config SYS_SUPPORTS_ZBOOT
1546 select HAVE_KERNEL_GZIP
1547 select HAVE_KERNEL_BZIP2
1548 select HAVE_KERNEL_LZMA
1549 select HAVE_KERNEL_LZO
1551 config SYS_SUPPORTS_ZBOOT_UART16550
1553 select SYS_SUPPORTS_ZBOOT
1555 config CPU_LOONGSON2
1557 select CPU_SUPPORTS_32BIT_KERNEL
1558 select CPU_SUPPORTS_64BIT_KERNEL
1559 select CPU_SUPPORTS_HIGHMEM
1560 select CPU_SUPPORTS_HUGEPAGES
1562 config CPU_LOONGSON1
1566 select CPU_HAS_PREFETCH
1567 select CPU_SUPPORTS_32BIT_KERNEL
1568 select CPU_SUPPORTS_HIGHMEM
1573 select CPU_SUPPORTS_32BIT_KERNEL
1574 select DMA_NONCOHERENT
1576 select SWAP_IO_SPACE
1577 select WEAK_ORDERING
1579 config SYS_HAS_CPU_LOONGSON2E
1582 config SYS_HAS_CPU_LOONGSON2F
1584 select CPU_SUPPORTS_CPUFREQ
1585 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1586 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1588 config SYS_HAS_CPU_LOONGSON1B
1591 config SYS_HAS_CPU_MIPS32_R1
1594 config SYS_HAS_CPU_MIPS32_R2
1597 config SYS_HAS_CPU_MIPS64_R1
1600 config SYS_HAS_CPU_MIPS64_R2
1603 config SYS_HAS_CPU_R3000
1606 config SYS_HAS_CPU_TX39XX
1609 config SYS_HAS_CPU_VR41XX
1612 config SYS_HAS_CPU_R4300
1615 config SYS_HAS_CPU_R4X00
1618 config SYS_HAS_CPU_TX49XX
1621 config SYS_HAS_CPU_R5000
1624 config SYS_HAS_CPU_R5432
1627 config SYS_HAS_CPU_R5500
1630 config SYS_HAS_CPU_R6000
1633 config SYS_HAS_CPU_NEVADA
1636 config SYS_HAS_CPU_R8000
1639 config SYS_HAS_CPU_R10000
1642 config SYS_HAS_CPU_RM7000
1645 config SYS_HAS_CPU_SB1
1648 config SYS_HAS_CPU_CAVIUM_OCTEON
1651 config SYS_HAS_CPU_BMIPS3300
1654 config SYS_HAS_CPU_BMIPS4350
1657 config SYS_HAS_CPU_BMIPS4380
1660 config SYS_HAS_CPU_BMIPS5000
1663 config SYS_HAS_CPU_XLR
1666 config SYS_HAS_CPU_XLP
1670 # CPU may reorder R->R, R->W, W->R, W->W
1671 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1673 config WEAK_ORDERING
1677 # CPU may reorder reads and writes beyond LL/SC
1678 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1680 config WEAK_REORDERING_BEYOND_LLSC
1685 # These two indicate any level of the MIPS32 and MIPS64 architecture
1689 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1693 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1696 # These two indicate the revision of the architecture, either Release 1 or Release 2
1700 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1704 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1706 config SYS_SUPPORTS_32BIT_KERNEL
1708 config SYS_SUPPORTS_64BIT_KERNEL
1710 config CPU_SUPPORTS_32BIT_KERNEL
1712 config CPU_SUPPORTS_64BIT_KERNEL
1714 config CPU_SUPPORTS_CPUFREQ
1716 config CPU_SUPPORTS_ADDRWINCFG
1718 config CPU_SUPPORTS_HUGEPAGES
1720 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1722 config MIPS_PGD_C0_CONTEXT
1724 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1727 # Set to y for ptrace access to watch registers.
1729 config HARDWARE_WATCHPOINTS
1731 default y if CPU_MIPSR1 || CPU_MIPSR2
1736 prompt "Kernel code model"
1738 You should only select this option if you have a workload that
1739 actually benefits from 64-bit processing or if your machine has
1740 large memory. You will only be presented a single option in this
1741 menu if your system does not support both 32-bit and 64-bit kernels.
1744 bool "32-bit kernel"
1745 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1748 Select this option if you want to build a 32-bit kernel.
1750 bool "64-bit kernel"
1751 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1752 select HAVE_SYSCALL_WRAPPERS
1754 Select this option if you want to build a 64-bit kernel.
1759 prompt "Kernel page size"
1760 default PAGE_SIZE_4KB
1762 config PAGE_SIZE_4KB
1764 depends on !CPU_LOONGSON2
1766 This option select the standard 4kB Linux page size. On some
1767 R3000-family processors this is the only available page size. Using
1768 4kB page size will minimize memory consumption and is therefore
1769 recommended for low memory systems.
1771 config PAGE_SIZE_8KB
1773 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1775 Using 8kB page size will result in higher performance kernel at
1776 the price of higher memory consumption. This option is available
1777 only on R8000 and cnMIPS processors. Note that you will need a
1778 suitable Linux distribution to support this.
1780 config PAGE_SIZE_16KB
1782 depends on !CPU_R3000 && !CPU_TX39XX
1784 Using 16kB page size will result in higher performance kernel at
1785 the price of higher memory consumption. This option is available on
1786 all non-R3000 family processors. Note that you will need a suitable
1787 Linux distribution to support this.
1789 config PAGE_SIZE_32KB
1791 depends on CPU_CAVIUM_OCTEON
1793 Using 32kB page size will result in higher performance kernel at
1794 the price of higher memory consumption. This option is available
1795 only on cnMIPS cores. Note that you will need a suitable Linux
1796 distribution to support this.
1798 config PAGE_SIZE_64KB
1800 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1802 Using 64kB page size will result in higher performance kernel at
1803 the price of higher memory consumption. This option is available on
1804 all non-R3000 family processor. Not that at the time of this
1805 writing this option is still high experimental.
1809 config FORCE_MAX_ZONEORDER
1810 int "Maximum zone order"
1811 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1812 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1813 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1814 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1815 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1816 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1820 The kernel memory allocator divides physically contiguous memory
1821 blocks into "zones", where each zone is a power of two number of
1822 pages. This option selects the largest power of two that the kernel
1823 keeps in the memory allocator. If you need to allocate very large
1824 blocks of physically contiguous memory, then you may need to
1825 increase this value.
1827 This config option is actually maximum order plus one. For example,
1828 a value of 11 means that the largest free memory block is 2^10 pages.
1830 The page size is not necessarily 4KB. Keep this in mind
1831 when choosing a value for this option.
1836 config IP22_CPU_SCACHE
1841 # Support for a MIPS32 / MIPS64 style S-caches
1843 config MIPS_CPU_SCACHE
1847 config R5000_CPU_SCACHE
1851 config RM7000_CPU_SCACHE
1855 config SIBYTE_DMA_PAGEOPS
1856 bool "Use DMA to clear/copy pages"
1859 Instead of using the CPU to zero and copy pages, use a Data Mover
1860 channel. These DMA channels are otherwise unused by the standard
1861 SiByte Linux port. Seems to give a small performance benefit.
1863 config CPU_HAS_PREFETCH
1866 config CPU_GENERIC_DUMP_TLB
1868 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1872 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1874 config CPU_R4K_CACHE_TLB
1876 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1879 prompt "MIPS MT options"
1881 config MIPS_MT_DISABLED
1882 bool "Disable multithreading support."
1884 Use this option if your workload can't take advantage of
1885 MIPS hardware multithreading support. On systems that don't have
1886 the option of an MT-enabled processor this option will be the only
1887 option in this menu.
1890 bool "Use 1 TC on each available VPE for SMP"
1891 depends on SYS_SUPPORTS_MULTITHREADING
1892 select CPU_MIPSR2_IRQ_VI
1893 select CPU_MIPSR2_IRQ_EI
1895 select NR_CPUS_DEFAULT_2
1897 select SYS_SUPPORTS_SCHED_SMT if SMP
1898 select SYS_SUPPORTS_SMP
1900 select MIPS_PERF_SHARED_TC_COUNTERS
1902 This is a kernel model which is known a VSMP but lately has been
1903 marketesed into SMVP.
1904 Virtual SMP uses the processor's VPEs to implement virtual
1905 processors. In currently available configuration of the 34K processor
1906 this allows for a dual processor. Both processors will share the same
1907 primary caches; each will obtain the half of the TLB for it's own
1908 exclusive use. For a layman this model can be described as similar to
1909 what Intel calls Hyperthreading.
1911 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1914 bool "SMTC: Use all TCs on all VPEs for SMP"
1915 depends on CPU_MIPS32_R2
1916 #depends on CPU_MIPS64_R2 # once there is hardware ...
1917 depends on SYS_SUPPORTS_MULTITHREADING
1918 select CPU_MIPSR2_IRQ_VI
1919 select CPU_MIPSR2_IRQ_EI
1921 select NR_CPUS_DEFAULT_8
1923 select SYS_SUPPORTS_SMP
1926 This is a kernel model which is known a SMTC or lately has been
1927 marketesed into SMVP.
1928 is presenting the available TC's of the core as processors to Linux.
1929 On currently available 34K processors this means a Linux system will
1930 see up to 5 processors. The implementation of the SMTC kernel differs
1931 significantly from VSMP and cannot efficiently coexist in the same
1932 kernel binary so the choice between VSMP and SMTC is a compile time
1935 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1943 bool "SMT (multithreading) scheduler support"
1944 depends on SYS_SUPPORTS_SCHED_SMT
1947 SMT scheduler support improves the CPU scheduler's decision making
1948 when dealing with MIPS MT enabled cores at a cost of slightly
1949 increased overhead in some places. If unsure say N here.
1951 config SYS_SUPPORTS_SCHED_SMT
1954 config SYS_SUPPORTS_MULTITHREADING
1957 config MIPS_MT_FPAFF
1958 bool "Dynamic FPU affinity for FP-intensive threads"
1960 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1962 config MIPS_VPE_LOADER
1963 bool "VPE loader support."
1964 depends on SYS_SUPPORTS_MULTITHREADING
1965 select CPU_MIPSR2_IRQ_VI
1966 select CPU_MIPSR2_IRQ_EI
1969 Includes a loader for loading an elf relocatable object
1970 onto another VPE and running it.
1972 config MIPS_MT_SMTC_IM_BACKSTOP
1973 bool "Use per-TC register bits as backstop for inhibited IM bits"
1974 depends on MIPS_MT_SMTC
1977 To support multiple TC microthreads acting as "CPUs" within
1978 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1979 during interrupt handling. To support legacy drivers and interrupt
1980 controller management code, SMTC has a "backstop" to track and
1981 if necessary restore the interrupt mask. This has some performance
1982 impact on interrupt service overhead.
1984 config MIPS_MT_SMTC_IRQAFF
1985 bool "Support IRQ affinity API"
1986 depends on MIPS_MT_SMTC
1989 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1990 for SMTC Linux kernel. Requires platform support, of which
1991 an example can be found in the MIPS kernel i8259 and Malta
1992 platform code. Adds some overhead to interrupt dispatch, and
1993 should be used only if you know what you are doing.
1995 config MIPS_VPE_LOADER_TOM
1996 bool "Load VPE program into memory hidden from linux"
1997 depends on MIPS_VPE_LOADER
2000 The loader can use memory that is present but has been hidden from
2001 Linux using the kernel command line option "mem=xxMB". It's up to
2002 you to ensure the amount you put in the option and the space your
2003 program requires is less or equal to the amount physically present.
2005 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2006 config MIPS_VPE_APSP_API
2007 bool "Enable support for AP/SP API (RTLX)"
2008 depends on MIPS_VPE_LOADER
2012 bool "MIPS CMP framework support"
2013 depends on SYS_SUPPORTS_MIPS_CMP
2015 select SYS_SUPPORTS_SMP
2016 select SYS_SUPPORTS_SCHED_SMT if SMP
2017 select WEAK_ORDERING
2020 This is a placeholder option for the GCMP work. It will need to
2021 be handled differently...
2023 config SB1_PASS_1_WORKAROUNDS
2025 depends on CPU_SB1_PASS_1
2028 config SB1_PASS_2_WORKAROUNDS
2030 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2033 config SB1_PASS_2_1_WORKAROUNDS
2035 depends on CPU_SB1 && CPU_SB1_PASS_2
2038 config 64BIT_PHYS_ADDR
2041 config ARCH_PHYS_ADDR_T_64BIT
2042 def_bool 64BIT_PHYS_ADDR
2044 config CPU_HAS_SMARTMIPS
2045 depends on SYS_SUPPORTS_SMARTMIPS
2046 bool "Support for the SmartMIPS ASE"
2048 SmartMIPS is a extension of the MIPS32 architecture aimed at
2049 increased security at both hardware and software level for
2050 smartcards. Enabling this option will allow proper use of the
2051 SmartMIPS instructions by Linux applications. However a kernel with
2052 this option will not work on a MIPS core without SmartMIPS core. If
2053 you don't know you probably don't have SmartMIPS and should say N
2063 # Vectored interrupt mode is an R2 feature
2065 config CPU_MIPSR2_IRQ_VI
2069 # Extended interrupt mode is an R2 feature
2071 config CPU_MIPSR2_IRQ_EI
2076 depends on !CPU_R3000
2082 config CPU_DADDI_WORKAROUNDS
2085 config CPU_R4000_WORKAROUNDS
2087 select CPU_R4400_WORKAROUNDS
2089 config CPU_R4400_WORKAROUNDS
2093 # - Highmem only makes sense for the 32-bit kernel.
2094 # - The current highmem code will only work properly on physically indexed
2095 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2096 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2097 # moment we protect the user and offer the highmem option only on machines
2098 # where it's known to be safe. This will not offer highmem on a few systems
2099 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2100 # indexed CPUs but we're playing safe.
2101 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2102 # know they might have memory configurations that could make use of highmem
2106 bool "High Memory Support"
2107 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2109 config CPU_SUPPORTS_HIGHMEM
2112 config SYS_SUPPORTS_HIGHMEM
2115 config SYS_SUPPORTS_SMARTMIPS
2118 config ARCH_FLATMEM_ENABLE
2120 depends on !NUMA && !CPU_LOONGSON2
2122 config ARCH_DISCONTIGMEM_ENABLE
2124 default y if SGI_IP27
2126 Say Y to support efficient handling of discontiguous physical memory,
2127 for architectures which are either NUMA (Non-Uniform Memory Access)
2128 or have huge holes in the physical address space for other reasons.
2129 See <file:Documentation/vm/numa> for more.
2131 config ARCH_SPARSEMEM_ENABLE
2133 select SPARSEMEM_STATIC
2137 depends on SYS_SUPPORTS_NUMA
2139 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2140 Access). This option improves performance on systems with more
2141 than two nodes; on two node systems it is generally better to
2142 leave it disabled; on single node systems disable this option
2145 config SYS_SUPPORTS_NUMA
2151 depends on NEED_MULTIPLE_NODES
2153 config HW_PERF_EVENTS
2154 bool "Enable hardware performance counter support for perf events"
2155 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2158 Enable hardware performance counter support for perf events. If
2159 disabled, perf events will use software events only.
2164 bool "Multi-Processing support"
2165 depends on SYS_SUPPORTS_SMP
2167 select USE_GENERIC_SMP_HELPERS
2169 This enables support for systems with more than one CPU. If you have
2170 a system with only one CPU, like most personal computers, say N. If
2171 you have a system with more than one CPU, say Y.
2173 If you say N here, the kernel will run on single and multiprocessor
2174 machines, but will use only one CPU of a multiprocessor machine. If
2175 you say Y here, the kernel will run on many, but not all,
2176 singleprocessor machines. On a singleprocessor machine, the kernel
2177 will run faster if you say N here.
2179 People using multiprocessor machines who say Y here should also say
2180 Y to "Enhanced Real Time Clock Support", below.
2182 See also the SMP-HOWTO available at
2183 <http://www.tldp.org/docs.html#howto>.
2185 If you don't know what to do here, say N.
2190 config SYS_SUPPORTS_MIPS_CMP
2193 config SYS_SUPPORTS_SMP
2196 config NR_CPUS_DEFAULT_1
2199 config NR_CPUS_DEFAULT_2
2202 config NR_CPUS_DEFAULT_4
2205 config NR_CPUS_DEFAULT_8
2208 config NR_CPUS_DEFAULT_16
2211 config NR_CPUS_DEFAULT_32
2214 config NR_CPUS_DEFAULT_64
2218 int "Maximum number of CPUs (2-64)"
2219 range 1 64 if NR_CPUS_DEFAULT_1
2221 default "1" if NR_CPUS_DEFAULT_1
2222 default "2" if NR_CPUS_DEFAULT_2
2223 default "4" if NR_CPUS_DEFAULT_4
2224 default "8" if NR_CPUS_DEFAULT_8
2225 default "16" if NR_CPUS_DEFAULT_16
2226 default "32" if NR_CPUS_DEFAULT_32
2227 default "64" if NR_CPUS_DEFAULT_64
2229 This allows you to specify the maximum number of CPUs which this
2230 kernel will support. The maximum supported value is 32 for 32-bit
2231 kernel and 64 for 64-bit kernels; the minimum value which makes
2232 sense is 1 for Qemu (useful only for kernel debugging purposes)
2233 and 2 for all others.
2235 This is purely to save memory - each supported CPU adds
2236 approximately eight kilobytes to the kernel image. For best
2237 performance should round up your number of processors to the next
2240 config MIPS_PERF_SHARED_TC_COUNTERS
2244 # Timer Interrupt Frequency Configuration
2248 prompt "Timer frequency"
2251 Allows the configuration of the timer frequency.
2254 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2263 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2266 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2269 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2272 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2276 config SYS_SUPPORTS_48HZ
2279 config SYS_SUPPORTS_100HZ
2282 config SYS_SUPPORTS_128HZ
2285 config SYS_SUPPORTS_250HZ
2288 config SYS_SUPPORTS_256HZ
2291 config SYS_SUPPORTS_1000HZ
2294 config SYS_SUPPORTS_1024HZ
2297 config SYS_SUPPORTS_ARBIT_HZ
2299 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2300 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2301 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2302 !SYS_SUPPORTS_1024HZ
2307 default 100 if HZ_100
2308 default 128 if HZ_128
2309 default 250 if HZ_250
2310 default 256 if HZ_256
2311 default 1000 if HZ_1000
2312 default 1024 if HZ_1024
2314 source "kernel/Kconfig.preempt"
2317 bool "Kexec system call (EXPERIMENTAL)"
2318 depends on EXPERIMENTAL
2320 kexec is a system call that implements the ability to shutdown your
2321 current kernel, and to start another kernel. It is like a reboot
2322 but it is independent of the system firmware. And like a reboot
2323 you can start any kernel with it, not just Linux.
2325 The name comes from the similarity to the exec system call.
2327 It is an ongoing process to be certain the hardware in a machine
2328 is properly shutdown, so do not be surprised if this code does not
2329 initially work for you. It may help to enable device hotplugging
2330 support. As of this writing the exact hardware interface is
2331 strongly in flux, so no good recommendation can be made.
2334 bool "Kernel crash dumps"
2336 Generate crash dump after being started by kexec.
2337 This should be normally only set in special crash dump kernels
2338 which are loaded in the main kernel with kexec-tools into
2339 a specially reserved region and then later executed after
2340 a crash by kdump/kexec. The crash dump kernel must be compiled
2341 to a memory address not used by the main kernel or firmware using
2344 config PHYSICAL_START
2345 hex "Physical address where the kernel is loaded"
2346 default "0xffffffff84000000" if 64BIT
2347 default "0x84000000" if 32BIT
2348 depends on CRASH_DUMP
2350 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2351 If you plan to use kernel for capturing the crash dump change
2352 this value to start of the reserved region (the "X" value as
2353 specified in the "crashkernel=YM@XM" command line boot parameter
2354 passed to the panic-ed kernel).
2357 bool "Enable seccomp to safely compute untrusted bytecode"
2361 This kernel feature is useful for number crunching applications
2362 that may need to compute untrusted bytecode during their
2363 execution. By using pipes or other transports made available to
2364 the process as file descriptors supporting the read/write
2365 syscalls, it's possible to isolate those applications in
2366 their own address space using seccomp. Once seccomp is
2367 enabled via /proc/<pid>/seccomp, it cannot be disabled
2368 and the task is only allowed to execute a few safe syscalls
2369 defined by each seccomp mode.
2371 If unsure, say Y. Only embedded should say N here.
2376 select OF_EARLY_FLATTREE
2381 config LOCKDEP_SUPPORT
2385 config STACKTRACE_SUPPORT
2389 source "init/Kconfig"
2391 source "kernel/Kconfig.freezer"
2393 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2401 bool "Support for PCI controller"
2402 depends on HW_HAS_PCI
2404 select GENERIC_PCI_IOMAP
2405 select NO_GENERIC_PCI_IOPORT_MAP
2407 Find out whether you have a PCI motherboard. PCI is the name of a
2408 bus system, i.e. the way the CPU talks to the other stuff inside
2409 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2415 source "drivers/pci/Kconfig"
2417 source "drivers/pci/pcie/Kconfig"
2420 # ISA support is now enabled via select. Too many systems still have the one
2421 # or other ISA chip on the board that users don't know about so don't expect
2422 # users to choose the right thing ...
2429 depends on HW_HAS_EISA
2431 select GENERIC_ISA_DMA
2433 The Extended Industry Standard Architecture (EISA) bus was
2434 developed as an open alternative to the IBM MicroChannel bus.
2436 The EISA bus provided some of the features of the IBM MicroChannel
2437 bus while maintaining backward compatibility with cards made for
2438 the older ISA bus. The EISA bus saw limited use between 1988 and
2439 1995 when it was made obsolete by the PCI bus.
2441 Say Y here if you are building a kernel for an EISA-based machine.
2445 source "drivers/eisa/Kconfig"
2448 bool "TURBOchannel support"
2449 depends on MACH_DECSTATION
2451 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2452 processors. TURBOchannel programming specifications are available
2454 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2456 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2457 Linux driver support status is documented at:
2458 <http://www.linux-mips.org/wiki/DECstation>
2468 select MIPS_EXTERNAL_TIMER
2473 source "drivers/pcmcia/Kconfig"
2475 source "drivers/pci/hotplug/Kconfig"
2478 bool "RapidIO support"
2482 If you say Y here, the kernel will include drivers and
2483 infrastructure code to support RapidIO interconnect devices.
2485 source "drivers/rapidio/Kconfig"
2489 menu "Executable file formats"
2491 source "fs/Kconfig.binfmt"
2496 config MIPS32_COMPAT
2497 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2500 Select this option if you want Linux/MIPS 32-bit binary
2501 compatibility. Since all software available for Linux/MIPS is
2502 currently 32-bit you should say Y here.
2506 depends on MIPS32_COMPAT
2507 select ARCH_WANT_OLD_COMPAT_IPC
2510 config SYSVIPC_COMPAT
2512 depends on COMPAT && SYSVIPC
2516 bool "Kernel support for o32 binaries"
2517 depends on MIPS32_COMPAT
2519 Select this option if you want to run o32 binaries. These are pure
2520 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2521 existing binaries are in this format.
2526 bool "Kernel support for n32 binaries"
2527 depends on MIPS32_COMPAT
2529 Select this option if you want to run n32 binaries. These are
2530 64-bit binaries using 32-bit quantities for addressing and certain
2531 data that would normally be 64-bit. They are used in special
2538 default y if MIPS32_O32 || MIPS32_N32
2542 menu "Power management options"
2544 config ARCH_HIBERNATION_POSSIBLE
2546 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2548 config ARCH_SUSPEND_POSSIBLE
2550 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2552 source "kernel/power/Kconfig"
2556 source "arch/mips/kernel/cpufreq/Kconfig"
2558 source "net/Kconfig"
2560 source "drivers/Kconfig"
2562 source "drivers/firmware/Kconfig"
2566 source "arch/mips/Kconfig.debug"
2568 source "security/Kconfig"
2570 source "crypto/Kconfig"
2572 source "lib/Kconfig"