4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select HAVE_VIRT_TO_BUS
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
46 menu "Machine selection"
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
71 bool "Texas Instruments AR7"
73 select DMA_NONCOHERENT
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
97 select DMA_NONCOHERENT
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109 bool "Broadcom BCM47XX based boards"
110 select ARCH_WANT_OPTIONAL_GPIOLIB
113 select DMA_NONCOHERENT
117 select SYS_SUPPORTS_32BIT_KERNEL
118 select SYS_SUPPORTS_LITTLE_ENDIAN
119 select SYS_HAS_EARLY_PRINTK
121 Support for BCM47XX based boards
124 bool "Broadcom BCM63XX based boards"
127 select DMA_NONCOHERENT
129 select SYS_HAS_CPU_MIPS32_R1
130 select SYS_SUPPORTS_32BIT_KERNEL
131 select SYS_SUPPORTS_BIG_ENDIAN
132 select SYS_HAS_EARLY_PRINTK
134 select ARCH_REQUIRE_GPIOLIB
137 Support for BCM63XX based boards
144 select DMA_NONCOHERENT
150 select PCI_GT64XXX_PCI0
152 select SYS_HAS_CPU_NEVADA
153 select SYS_HAS_EARLY_PRINTK
154 select SYS_SUPPORTS_32BIT_KERNEL
155 select SYS_SUPPORTS_64BIT_KERNEL
156 select SYS_SUPPORTS_LITTLE_ENDIAN
158 config MACH_DECSTATION
165 select CPU_DADDI_WORKAROUNDS if 64BIT
166 select CPU_R4000_WORKAROUNDS if 64BIT
167 select CPU_R4400_WORKAROUNDS if 64BIT
168 select DMA_NONCOHERENT
171 select SYS_HAS_CPU_R3000
172 select SYS_HAS_CPU_R4X00
173 select SYS_SUPPORTS_32BIT_KERNEL
174 select SYS_SUPPORTS_64BIT_KERNEL
175 select SYS_SUPPORTS_LITTLE_ENDIAN
176 select SYS_SUPPORTS_128HZ
177 select SYS_SUPPORTS_256HZ
178 select SYS_SUPPORTS_1024HZ
180 This enables support for DEC's MIPS based workstations. For details
181 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
182 DECstation porting pages on <http://decstation.unix-ag.org/>.
184 If you have one of the following DECstation Models you definitely
185 want to choose R4xx0 for the CPU Type:
192 otherwise choose R3000.
195 bool "Jazz family of machines"
198 select ARCH_MAY_HAVE_PC_FDC
201 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
202 select GENERIC_ISA_DMA
203 select HAVE_PCSPKR_PLATFORM
208 select SYS_HAS_CPU_R4X00
209 select SYS_SUPPORTS_32BIT_KERNEL
210 select SYS_SUPPORTS_64BIT_KERNEL
211 select SYS_SUPPORTS_100HZ
213 This a family of machines based on the MIPS R4030 chipset which was
214 used by several vendors to build RISC/os and Windows NT workstations.
215 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
216 Olivetti M700-10 workstations.
219 bool "Ingenic JZ4740 based machines"
220 select SYS_HAS_CPU_MIPS32_R1
221 select SYS_SUPPORTS_32BIT_KERNEL
222 select SYS_SUPPORTS_LITTLE_ENDIAN
223 select SYS_SUPPORTS_ZBOOT_UART16550
224 select DMA_NONCOHERENT
227 select ARCH_REQUIRE_GPIOLIB
228 select SYS_HAS_EARLY_PRINTK
231 select GENERIC_IRQ_CHIP
234 bool "Lantiq based platforms"
235 select DMA_NONCOHERENT
239 select SYS_HAS_CPU_MIPS32_R1
240 select SYS_HAS_CPU_MIPS32_R2
241 select SYS_SUPPORTS_BIG_ENDIAN
242 select SYS_SUPPORTS_32BIT_KERNEL
243 select SYS_SUPPORTS_MULTITHREADING
244 select SYS_HAS_EARLY_PRINTK
245 select ARCH_REQUIRE_GPIOLIB
248 select HAVE_MACH_CLKDEV
252 select PINCTRL_LANTIQ
255 bool "LASAT Networks platforms"
258 select DMA_NONCOHERENT
259 select SYS_HAS_EARLY_PRINTK
262 select PCI_GT64XXX_PCI0
264 select R5000_CPU_SCACHE
265 select SYS_HAS_CPU_R5000
266 select SYS_SUPPORTS_32BIT_KERNEL
267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
268 select SYS_SUPPORTS_LITTLE_ENDIAN
271 bool "Loongson family of machines"
272 select SYS_SUPPORTS_ZBOOT
274 This enables the support of Loongson family of machines.
276 Loongson is a family of general-purpose MIPS-compatible CPUs.
277 developed at Institute of Computing Technology (ICT),
278 Chinese Academy of Sciences (CAS) in the People's Republic
279 of China. The chief architect is Professor Weiwu Hu.
281 config MACH_LOONGSON1
282 bool "Loongson 1 family of machines"
283 select SYS_SUPPORTS_ZBOOT
285 This enables support for the Loongson 1 based machines.
287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
288 the ICT (Institute of Computing Technology) and the Chinese Academy
292 bool "MIPS Malta board"
293 select ARCH_MAY_HAVE_PC_FDC
298 select DMA_NONCOHERENT
299 select GENERIC_ISA_DMA
300 select HAVE_PCSPKR_PLATFORM
306 select MIPS_BOARDS_GEN
308 select MIPS_CPU_SCACHE
309 select PCI_GT64XXX_PCI0
312 select SYS_HAS_CPU_MIPS32_R1
313 select SYS_HAS_CPU_MIPS32_R2
314 select SYS_HAS_CPU_MIPS64_R1
315 select SYS_HAS_CPU_MIPS64_R2
316 select SYS_HAS_CPU_NEVADA
317 select SYS_HAS_CPU_RM7000
318 select SYS_HAS_EARLY_PRINTK
319 select SYS_SUPPORTS_32BIT_KERNEL
320 select SYS_SUPPORTS_64BIT_KERNEL
321 select SYS_SUPPORTS_BIG_ENDIAN
322 select SYS_SUPPORTS_LITTLE_ENDIAN
323 select SYS_SUPPORTS_MIPS_CMP
324 select SYS_SUPPORTS_MULTITHREADING
325 select SYS_SUPPORTS_SMARTMIPS
326 select SYS_SUPPORTS_ZBOOT
328 This enables support for the MIPS Technologies Malta evaluation
332 bool "MIPS SEAD3 board"
337 select CPU_MIPSR2_IRQ_VI
338 select CPU_MIPSR2_IRQ_EI
339 select DMA_NONCOHERENT
342 select MIPS_BOARDS_GEN
343 select MIPS_CPU_SCACHE
345 select SYS_HAS_CPU_MIPS32_R1
346 select SYS_HAS_CPU_MIPS32_R2
347 select SYS_HAS_CPU_MIPS64_R1
348 select SYS_HAS_EARLY_PRINTK
349 select SYS_SUPPORTS_32BIT_KERNEL
350 select SYS_SUPPORTS_64BIT_KERNEL
351 select SYS_SUPPORTS_BIG_ENDIAN
352 select SYS_SUPPORTS_LITTLE_ENDIAN
353 select SYS_SUPPORTS_SMARTMIPS
354 select USB_ARCH_HAS_EHCI
355 select USB_EHCI_BIG_ENDIAN_DESC
356 select USB_EHCI_BIG_ENDIAN_MMIO
358 This enables support for the MIPS Technologies SEAD3 evaluation
362 bool "NEC EMMA2RH Mark-eins board"
366 This enables support for the NEC Electronics Mark-eins boards.
369 bool "NEC VR4100 series based machines"
372 select SYS_HAS_CPU_VR41XX
373 select ARCH_REQUIRE_GPIOLIB
376 bool "NXP STB220 board"
379 Support for NXP Semiconductors STB220 Development Board.
386 Support for NXP Semiconductors STB225 Development Board.
389 bool "NXP PNX8550 based JBS board"
391 select SYS_SUPPORTS_LITTLE_ENDIAN
393 config PNX8550_STB810
394 bool "NXP PNX8550 based STB810 board"
396 select SYS_SUPPORTS_LITTLE_ENDIAN
399 bool "PMC-Sierra MSP chipsets"
402 select DMA_NONCOHERENT
404 select NO_EXCEPT_FILL
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
412 select SERIAL_8250_CONSOLE
414 This adds support for the PMC-Sierra family of Multi-Service
415 Processor System-On-A-Chips. These parts include a number
416 of integrated peripherals, interfaces and DSPs in addition to
417 a variety of MIPS cores.
423 select CPU_MIPSR2_IRQ_VI
424 select CPU_MIPSR2_IRQ_EI
426 select DMA_NONCOHERENT
428 select SYS_HAS_EARLY_PRINTK
429 select SYS_HAS_CPU_MIPS32_R2
430 select SYS_SUPPORTS_32BIT_KERNEL
431 select SYS_SUPPORTS_BIG_ENDIAN
432 select SYS_SUPPORTS_HIGHMEM
433 select USB_OHCI_LITTLE_ENDIAN
435 This enables support for the Cisco PowerTV Platform.
438 bool "SGI IP22 (Indy/Indigo2)"
444 select DEFAULT_SGI_PARTITION
445 select DMA_NONCOHERENT
449 select IP22_CPU_SCACHE
451 select GENERIC_ISA_DMA_SUPPORT_BROKEN
453 select SGI_HAS_INDYDOG
459 select SYS_HAS_CPU_R4X00
460 select SYS_HAS_CPU_R5000
462 # Disable EARLY_PRINTK for now since it leads to overwritten prom
463 # memory during early boot on some machines.
465 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
466 # for a more details discussion
468 # select SYS_HAS_EARLY_PRINTK
469 select SYS_SUPPORTS_32BIT_KERNEL
470 select SYS_SUPPORTS_64BIT_KERNEL
471 select SYS_SUPPORTS_BIG_ENDIAN
473 This are the SGI Indy, Challenge S and Indigo2, as well as certain
474 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
475 that runs on these, say Y here.
478 bool "SGI IP27 (Origin200/2000)"
482 select DEFAULT_SGI_PARTITION
484 select SYS_HAS_EARLY_PRINTK
486 select NR_CPUS_DEFAULT_64
487 select SYS_HAS_CPU_R10000
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select SYS_SUPPORTS_NUMA
491 select SYS_SUPPORTS_SMP
493 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
494 workstations. To compile a Linux kernel that runs on these, say Y
498 bool "SGI IP28 (Indigo2 R10k)"
504 select DEFAULT_SGI_PARTITION
505 select DMA_NONCOHERENT
506 select GENERIC_ISA_DMA_SUPPORT_BROKEN
512 select SGI_HAS_INDYDOG
518 select SYS_HAS_CPU_R10000
520 # Disable EARLY_PRINTK for now since it leads to overwritten prom
521 # memory during early boot on some machines.
523 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
524 # for a more details discussion
526 # select SYS_HAS_EARLY_PRINTK
527 select SYS_SUPPORTS_64BIT_KERNEL
528 select SYS_SUPPORTS_BIG_ENDIAN
530 This is the SGI Indigo2 with R10000 processor. To compile a Linux
531 kernel that runs on these, say Y here.
540 select DMA_NONCOHERENT
543 select R5000_CPU_SCACHE
544 select RM7000_CPU_SCACHE
545 select SYS_HAS_CPU_R5000
546 select SYS_HAS_CPU_R10000 if BROKEN
547 select SYS_HAS_CPU_RM7000
548 select SYS_HAS_CPU_NEVADA
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_BIG_ENDIAN
552 If you want this kernel to run on SGI O2 workstation, say Y here.
555 bool "Sibyte BCM91120C-CRhine"
558 select SIBYTE_BCM1120
560 select SYS_HAS_CPU_SB1
561 select SYS_SUPPORTS_BIG_ENDIAN
562 select SYS_SUPPORTS_LITTLE_ENDIAN
565 bool "Sibyte BCM91120x-Carmel"
568 select SIBYTE_BCM1120
570 select SYS_HAS_CPU_SB1
571 select SYS_SUPPORTS_BIG_ENDIAN
572 select SYS_SUPPORTS_LITTLE_ENDIAN
575 bool "Sibyte BCM91125C-CRhone"
578 select SIBYTE_BCM1125
580 select SYS_HAS_CPU_SB1
581 select SYS_SUPPORTS_BIG_ENDIAN
582 select SYS_SUPPORTS_HIGHMEM
583 select SYS_SUPPORTS_LITTLE_ENDIAN
586 bool "Sibyte BCM91125E-Rhone"
589 select SIBYTE_BCM1125H
591 select SYS_HAS_CPU_SB1
592 select SYS_SUPPORTS_BIG_ENDIAN
593 select SYS_SUPPORTS_LITTLE_ENDIAN
596 bool "Sibyte BCM91250A-SWARM"
599 select HAVE_PATA_PLATFORM
600 select NR_CPUS_DEFAULT_2
603 select SYS_HAS_CPU_SB1
604 select SYS_SUPPORTS_BIG_ENDIAN
605 select SYS_SUPPORTS_HIGHMEM
606 select SYS_SUPPORTS_LITTLE_ENDIAN
607 select ZONE_DMA32 if 64BIT
609 config SIBYTE_LITTLESUR
610 bool "Sibyte BCM91250C2-LittleSur"
613 select HAVE_PATA_PLATFORM
614 select NR_CPUS_DEFAULT_2
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_HIGHMEM
620 select SYS_SUPPORTS_LITTLE_ENDIAN
622 config SIBYTE_SENTOSA
623 bool "Sibyte BCM91250E-Sentosa"
626 select NR_CPUS_DEFAULT_2
629 select SYS_HAS_CPU_SB1
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_LITTLE_ENDIAN
634 bool "Sibyte BCM91480B-BigSur"
637 select NR_CPUS_DEFAULT_4
638 select SIBYTE_BCM1x80
640 select SYS_HAS_CPU_SB1
641 select SYS_SUPPORTS_BIG_ENDIAN
642 select SYS_SUPPORTS_HIGHMEM
643 select SYS_SUPPORTS_LITTLE_ENDIAN
644 select ZONE_DMA32 if 64BIT
647 bool "SNI RM200/300/400"
648 select FW_ARC if CPU_LITTLE_ENDIAN
649 select FW_ARC32 if CPU_LITTLE_ENDIAN
650 select SNIPROM if CPU_BIG_ENDIAN
651 select ARCH_MAY_HAVE_PC_FDC
655 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
656 select DMA_NONCOHERENT
657 select GENERIC_ISA_DMA
658 select HAVE_PCSPKR_PLATFORM
665 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
666 select SYS_HAS_CPU_R4X00
667 select SYS_HAS_CPU_R5000
668 select SYS_HAS_CPU_R10000
669 select R5000_CPU_SCACHE
670 select SYS_HAS_EARLY_PRINTK
671 select SYS_SUPPORTS_32BIT_KERNEL
672 select SYS_SUPPORTS_64BIT_KERNEL
673 select SYS_SUPPORTS_BIG_ENDIAN
674 select SYS_SUPPORTS_HIGHMEM
675 select SYS_SUPPORTS_LITTLE_ENDIAN
677 The SNI RM200/300/400 are MIPS-based machines manufactured by
678 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
679 Technology and now in turn merged with Fujitsu. Say Y here to
680 support this machine type.
683 bool "Toshiba TX39 series based machines"
686 bool "Toshiba TX49 series based machines"
688 config MIKROTIK_RB532
689 bool "Mikrotik RB532 boards"
692 select DMA_NONCOHERENT
695 select SYS_HAS_CPU_MIPS32_R1
696 select SYS_SUPPORTS_32BIT_KERNEL
697 select SYS_SUPPORTS_LITTLE_ENDIAN
700 select ARCH_REQUIRE_GPIOLIB
702 Support the Mikrotik(tm) RouterBoard 532 series,
703 based on the IDT RC32434 SoC.
706 bool "Wind River PPMC board"
711 select DMA_NONCOHERENT
713 select PCI_GT64XXX_PCI0
715 select SYS_HAS_CPU_MIPS32_R1
716 select SYS_HAS_CPU_MIPS32_R2
717 select SYS_HAS_CPU_MIPS64_R1
718 select SYS_HAS_CPU_NEVADA
719 select SYS_HAS_CPU_RM7000
720 select SYS_SUPPORTS_32BIT_KERNEL
721 select SYS_SUPPORTS_64BIT_KERNEL
722 select SYS_SUPPORTS_BIG_ENDIAN
723 select SYS_SUPPORTS_LITTLE_ENDIAN
725 This enables support for the Wind River MIPS32 4KC PPMC evaluation
726 board, which is based on GT64120 bridge chip.
728 config CAVIUM_OCTEON_SIMULATOR
729 bool "Cavium Networks Octeon Simulator"
731 select 64BIT_PHYS_ADDR
733 select SYS_SUPPORTS_64BIT_KERNEL
734 select SYS_SUPPORTS_BIG_ENDIAN
735 select SYS_SUPPORTS_HOTPLUG_CPU
736 select SYS_HAS_CPU_CAVIUM_OCTEON
739 The Octeon simulator is software performance model of the Cavium
740 Octeon Processor. It supports simulating Octeon processors on x86
743 config CAVIUM_OCTEON_REFERENCE_BOARD
744 bool "Cavium Networks Octeon reference board"
746 select 64BIT_PHYS_ADDR
748 select SYS_SUPPORTS_64BIT_KERNEL
749 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_HOTPLUG_CPU
752 select SYS_HAS_EARLY_PRINTK
753 select SYS_HAS_CPU_CAVIUM_OCTEON
756 select ARCH_SUPPORTS_MSI
758 select USB_ARCH_HAS_OHCI
759 select USB_ARCH_HAS_EHCI
762 This option supports all of the Octeon reference boards from Cavium
763 Networks. It builds a kernel that dynamically determines the Octeon
764 CPU type and supports all known board reference implementations.
765 Some of the supported boards are:
772 Say Y here for most Octeon reference boards.
775 bool "Netlogic XLR/XLS based systems"
778 select SYS_HAS_CPU_XLR
779 select SYS_SUPPORTS_SMP
782 select SYS_SUPPORTS_32BIT_KERNEL
783 select SYS_SUPPORTS_64BIT_KERNEL
784 select 64BIT_PHYS_ADDR
785 select SYS_SUPPORTS_BIG_ENDIAN
786 select SYS_SUPPORTS_HIGHMEM
788 select NR_CPUS_DEFAULT_32
792 select ARCH_SUPPORTS_MSI
793 select ZONE_DMA32 if 64BIT
795 select SYS_HAS_EARLY_PRINTK
796 select USB_ARCH_HAS_OHCI if USB_SUPPORT
797 select USB_ARCH_HAS_EHCI if USB_SUPPORT
799 Support for systems based on Netlogic XLR and XLS processors.
800 Say Y here if you have a XLR or XLS based board.
803 bool "Netlogic XLP based systems"
806 select SYS_HAS_CPU_XLP
807 select SYS_SUPPORTS_SMP
809 select SYS_SUPPORTS_32BIT_KERNEL
810 select SYS_SUPPORTS_64BIT_KERNEL
811 select 64BIT_PHYS_ADDR
812 select SYS_SUPPORTS_BIG_ENDIAN
813 select SYS_SUPPORTS_LITTLE_ENDIAN
814 select SYS_SUPPORTS_HIGHMEM
816 select NR_CPUS_DEFAULT_32
820 select ZONE_DMA32 if 64BIT
822 select SYS_HAS_EARLY_PRINTK
825 This board is based on Netlogic XLP Processor.
826 Say Y here if you have a XLP based board.
830 source "arch/mips/alchemy/Kconfig"
831 source "arch/mips/ath79/Kconfig"
832 source "arch/mips/bcm47xx/Kconfig"
833 source "arch/mips/bcm63xx/Kconfig"
834 source "arch/mips/jazz/Kconfig"
835 source "arch/mips/jz4740/Kconfig"
836 source "arch/mips/lantiq/Kconfig"
837 source "arch/mips/lasat/Kconfig"
838 source "arch/mips/pmc-sierra/Kconfig"
839 source "arch/mips/powertv/Kconfig"
840 source "arch/mips/sgi-ip27/Kconfig"
841 source "arch/mips/sibyte/Kconfig"
842 source "arch/mips/txx9/Kconfig"
843 source "arch/mips/vr41xx/Kconfig"
844 source "arch/mips/cavium-octeon/Kconfig"
845 source "arch/mips/loongson/Kconfig"
846 source "arch/mips/loongson1/Kconfig"
847 source "arch/mips/netlogic/Kconfig"
851 config RWSEM_GENERIC_SPINLOCK
855 config RWSEM_XCHGADD_ALGORITHM
858 config ARCH_HAS_ILOG2_U32
862 config ARCH_HAS_ILOG2_U64
866 config GENERIC_HWEIGHT
870 config GENERIC_CALIBRATE_DELAY
874 config SCHED_OMIT_FRAME_POINTER
879 # Select some configuration options automatically based on user selections.
884 config ARCH_MAY_HAVE_PC_FDC
925 select ARCH_REQUIRE_GPIOLIB
931 config ARCH_DMA_ADDR_T_64BIT
932 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
937 config DMA_NONCOHERENT
939 select NEED_DMA_MAP_STATE
941 config NEED_DMA_MAP_STATE
944 config SYS_HAS_EARLY_PRINTK
948 bool "Support for hot-pluggable CPUs"
949 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
951 Say Y here to allow turning CPUs off and on. CPUs can be
952 controlled through /sys/devices/system/cpu.
953 (Note: power management support will enable this option
954 automatically on SMP systems. )
955 Say N if you want to disable CPU hotplug.
957 config SYS_SUPPORTS_HOTPLUG_CPU
972 config MIPS_DISABLE_OBSOLETE_IDE
984 config GENERIC_ISA_DMA
986 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
989 config GENERIC_ISA_DMA_SUPPORT_BROKEN
991 select GENERIC_ISA_DMA
1003 # Endianness selection. Sufficiently obscure so many users don't know what to
1004 # answer,so we try hard to limit the available choices. Also the use of a
1005 # choice statement should be more obvious to the user.
1008 prompt "Endianness selection"
1010 Some MIPS machines can be configured for either little or big endian
1011 byte order. These modes require different kernels and a different
1012 Linux distribution. In general there is one preferred byteorder for a
1013 particular system but some systems are just as commonly used in the
1014 one or the other endianness.
1016 config CPU_BIG_ENDIAN
1018 depends on SYS_SUPPORTS_BIG_ENDIAN
1020 config CPU_LITTLE_ENDIAN
1021 bool "Little endian"
1022 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1030 config SYS_SUPPORTS_APM_EMULATION
1033 config SYS_SUPPORTS_BIG_ENDIAN
1036 config SYS_SUPPORTS_LITTLE_ENDIAN
1039 config SYS_SUPPORTS_HUGETLBFS
1041 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1044 config MIPS_HUGE_TLB_SUPPORT
1045 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1068 config MIPS_BOARDS_GEN
1071 config PCI_GT64XXX_PCI0
1074 config NO_EXCEPT_FILL
1081 select DMA_NONCOHERENT
1083 select SWAP_IO_SPACE
1084 select SYS_HAS_CPU_R5500
1085 select SYS_SUPPORTS_32BIT_KERNEL
1086 select SYS_SUPPORTS_64BIT_KERNEL
1087 select SYS_SUPPORTS_BIG_ENDIAN
1094 select DMA_NONCOHERENT
1095 select SYS_HAS_CPU_MIPS32_R2
1096 select SYS_SUPPORTS_32BIT_KERNEL
1097 select SYS_SUPPORTS_LITTLE_ENDIAN
1098 select SYS_SUPPORTS_BIG_ENDIAN
1100 select CPU_MIPSR2_IRQ_VI
1112 select DMA_NONCOHERENT
1114 select SYS_HAS_CPU_MIPS32_R1
1115 select SYS_HAS_EARLY_PRINTK
1116 select SYS_SUPPORTS_32BIT_KERNEL
1119 config SWAP_IO_SPACE
1122 config SGI_HAS_INDYDOG
1134 config SGI_HAS_ZILOG
1137 config SGI_HAS_I8042
1140 config DEFAULT_SGI_PARTITION
1152 config MIPS_L1_CACHE_SHIFT
1154 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1155 default "6" if MIPS_CPU_SCACHE
1156 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1159 config HAVE_STD_PC_SERIAL_PORT
1163 bool "ARC console support"
1164 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1168 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1173 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1182 menu "CPU selection"
1188 config CPU_LOONGSON2E
1190 depends on SYS_HAS_CPU_LOONGSON2E
1191 select CPU_LOONGSON2
1193 The Loongson 2E processor implements the MIPS III instruction set
1194 with many extensions.
1196 It has an internal FPGA northbridge, which is compatible to
1199 config CPU_LOONGSON2F
1201 depends on SYS_HAS_CPU_LOONGSON2F
1202 select CPU_LOONGSON2
1204 select ARCH_REQUIRE_GPIOLIB
1206 The Loongson 2F processor implements the MIPS III instruction set
1207 with many extensions.
1209 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1210 have a similar programming interface with FPGA northbridge used in
1213 config CPU_LOONGSON1B
1215 depends on SYS_HAS_CPU_LOONGSON1B
1216 select CPU_LOONGSON1
1218 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1219 release 2 instruction set.
1221 config CPU_MIPS32_R1
1222 bool "MIPS32 Release 1"
1223 depends on SYS_HAS_CPU_MIPS32_R1
1224 select CPU_HAS_PREFETCH
1225 select CPU_SUPPORTS_32BIT_KERNEL
1226 select CPU_SUPPORTS_HIGHMEM
1228 Choose this option to build a kernel for release 1 or later of the
1229 MIPS32 architecture. Most modern embedded systems with a 32-bit
1230 MIPS processor are based on a MIPS32 processor. If you know the
1231 specific type of processor in your system, choose those that one
1232 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1233 Release 2 of the MIPS32 architecture is available since several
1234 years so chances are you even have a MIPS32 Release 2 processor
1235 in which case you should choose CPU_MIPS32_R2 instead for better
1238 config CPU_MIPS32_R2
1239 bool "MIPS32 Release 2"
1240 depends on SYS_HAS_CPU_MIPS32_R2
1241 select CPU_HAS_PREFETCH
1242 select CPU_SUPPORTS_32BIT_KERNEL
1243 select CPU_SUPPORTS_HIGHMEM
1245 Choose this option to build a kernel for release 2 or later of the
1246 MIPS32 architecture. Most modern embedded systems with a 32-bit
1247 MIPS processor are based on a MIPS32 processor. If you know the
1248 specific type of processor in your system, choose those that one
1249 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1251 config CPU_MIPS64_R1
1252 bool "MIPS64 Release 1"
1253 depends on SYS_HAS_CPU_MIPS64_R1
1254 select CPU_HAS_PREFETCH
1255 select CPU_SUPPORTS_32BIT_KERNEL
1256 select CPU_SUPPORTS_64BIT_KERNEL
1257 select CPU_SUPPORTS_HIGHMEM
1258 select CPU_SUPPORTS_HUGEPAGES
1260 Choose this option to build a kernel for release 1 or later of the
1261 MIPS64 architecture. Many modern embedded systems with a 64-bit
1262 MIPS processor are based on a MIPS64 processor. If you know the
1263 specific type of processor in your system, choose those that one
1264 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1265 Release 2 of the MIPS64 architecture is available since several
1266 years so chances are you even have a MIPS64 Release 2 processor
1267 in which case you should choose CPU_MIPS64_R2 instead for better
1270 config CPU_MIPS64_R2
1271 bool "MIPS64 Release 2"
1272 depends on SYS_HAS_CPU_MIPS64_R2
1273 select CPU_HAS_PREFETCH
1274 select CPU_SUPPORTS_32BIT_KERNEL
1275 select CPU_SUPPORTS_64BIT_KERNEL
1276 select CPU_SUPPORTS_HIGHMEM
1277 select CPU_SUPPORTS_HUGEPAGES
1279 Choose this option to build a kernel for release 2 or later of the
1280 MIPS64 architecture. Many modern embedded systems with a 64-bit
1281 MIPS processor are based on a MIPS64 processor. If you know the
1282 specific type of processor in your system, choose those that one
1283 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1287 depends on SYS_HAS_CPU_R3000
1289 select CPU_SUPPORTS_32BIT_KERNEL
1290 select CPU_SUPPORTS_HIGHMEM
1292 Please make sure to pick the right CPU type. Linux/MIPS is not
1293 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1294 *not* work on R4000 machines and vice versa. However, since most
1295 of the supported machines have an R4000 (or similar) CPU, R4x00
1296 might be a safe bet. If the resulting kernel does not work,
1297 try to recompile with R3000.
1301 depends on SYS_HAS_CPU_TX39XX
1302 select CPU_SUPPORTS_32BIT_KERNEL
1306 depends on SYS_HAS_CPU_VR41XX
1307 select CPU_SUPPORTS_32BIT_KERNEL
1308 select CPU_SUPPORTS_64BIT_KERNEL
1310 The options selects support for the NEC VR4100 series of processors.
1311 Only choose this option if you have one of these processors as a
1312 kernel built with this option will not run on any other type of
1313 processor or vice versa.
1317 depends on SYS_HAS_CPU_R4300
1318 select CPU_SUPPORTS_32BIT_KERNEL
1319 select CPU_SUPPORTS_64BIT_KERNEL
1321 MIPS Technologies R4300-series processors.
1325 depends on SYS_HAS_CPU_R4X00
1326 select CPU_SUPPORTS_32BIT_KERNEL
1327 select CPU_SUPPORTS_64BIT_KERNEL
1328 select CPU_SUPPORTS_HUGEPAGES
1330 MIPS Technologies R4000-series processors other than 4300, including
1331 the R4000, R4400, R4600, and 4700.
1335 depends on SYS_HAS_CPU_TX49XX
1336 select CPU_HAS_PREFETCH
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_64BIT_KERNEL
1339 select CPU_SUPPORTS_HUGEPAGES
1343 depends on SYS_HAS_CPU_R5000
1344 select CPU_SUPPORTS_32BIT_KERNEL
1345 select CPU_SUPPORTS_64BIT_KERNEL
1346 select CPU_SUPPORTS_HUGEPAGES
1348 MIPS Technologies R5000-series processors other than the Nevada.
1352 depends on SYS_HAS_CPU_R5432
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1359 depends on SYS_HAS_CPU_R5500
1360 select CPU_SUPPORTS_32BIT_KERNEL
1361 select CPU_SUPPORTS_64BIT_KERNEL
1362 select CPU_SUPPORTS_HUGEPAGES
1364 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1369 depends on SYS_HAS_CPU_R6000
1370 select CPU_SUPPORTS_32BIT_KERNEL
1372 MIPS Technologies R6000 and R6000A series processors. Note these
1373 processors are extremely rare and the support for them is incomplete.
1377 depends on SYS_HAS_CPU_NEVADA
1378 select CPU_SUPPORTS_32BIT_KERNEL
1379 select CPU_SUPPORTS_64BIT_KERNEL
1380 select CPU_SUPPORTS_HUGEPAGES
1382 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1386 depends on SYS_HAS_CPU_R8000
1387 select CPU_HAS_PREFETCH
1388 select CPU_SUPPORTS_64BIT_KERNEL
1390 MIPS Technologies R8000 processors. Note these processors are
1391 uncommon and the support for them is incomplete.
1395 depends on SYS_HAS_CPU_R10000
1396 select CPU_HAS_PREFETCH
1397 select CPU_SUPPORTS_32BIT_KERNEL
1398 select CPU_SUPPORTS_64BIT_KERNEL
1399 select CPU_SUPPORTS_HIGHMEM
1400 select CPU_SUPPORTS_HUGEPAGES
1402 MIPS Technologies R10000-series processors.
1406 depends on SYS_HAS_CPU_RM7000
1407 select CPU_HAS_PREFETCH
1408 select CPU_SUPPORTS_32BIT_KERNEL
1409 select CPU_SUPPORTS_64BIT_KERNEL
1410 select CPU_SUPPORTS_HIGHMEM
1411 select CPU_SUPPORTS_HUGEPAGES
1415 depends on SYS_HAS_CPU_SB1
1416 select CPU_SUPPORTS_32BIT_KERNEL
1417 select CPU_SUPPORTS_64BIT_KERNEL
1418 select CPU_SUPPORTS_HIGHMEM
1419 select CPU_SUPPORTS_HUGEPAGES
1420 select WEAK_ORDERING
1422 config CPU_CAVIUM_OCTEON
1423 bool "Cavium Octeon processor"
1424 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1425 select ARCH_SPARSEMEM_ENABLE
1426 select CPU_HAS_PREFETCH
1427 select CPU_SUPPORTS_64BIT_KERNEL
1428 select SYS_SUPPORTS_SMP
1429 select NR_CPUS_DEFAULT_16
1430 select WEAK_ORDERING
1431 select CPU_SUPPORTS_HIGHMEM
1432 select CPU_SUPPORTS_HUGEPAGES
1436 The Cavium Octeon processor is a highly integrated chip containing
1437 many ethernet hardware widgets for networking tasks. The processor
1438 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1439 Full details can be found at http://www.caviumnetworks.com.
1441 config CPU_BMIPS3300
1443 depends on SYS_HAS_CPU_BMIPS3300
1446 Broadcom BMIPS3300 processors.
1448 config CPU_BMIPS4350
1450 depends on SYS_HAS_CPU_BMIPS4350
1452 select SYS_SUPPORTS_SMP
1453 select SYS_SUPPORTS_HOTPLUG_CPU
1455 Broadcom BMIPS4350 ("VIPER") processors.
1457 config CPU_BMIPS4380
1459 depends on SYS_HAS_CPU_BMIPS4380
1461 select SYS_SUPPORTS_SMP
1462 select SYS_SUPPORTS_HOTPLUG_CPU
1464 Broadcom BMIPS4380 processors.
1466 config CPU_BMIPS5000
1468 depends on SYS_HAS_CPU_BMIPS5000
1470 select CPU_SUPPORTS_HIGHMEM
1471 select MIPS_CPU_SCACHE
1472 select SYS_SUPPORTS_SMP
1473 select SYS_SUPPORTS_HOTPLUG_CPU
1475 Broadcom BMIPS5000 processors.
1478 bool "Netlogic XLR SoC"
1479 depends on SYS_HAS_CPU_XLR
1480 select CPU_SUPPORTS_32BIT_KERNEL
1481 select CPU_SUPPORTS_64BIT_KERNEL
1482 select CPU_SUPPORTS_HIGHMEM
1483 select CPU_SUPPORTS_HUGEPAGES
1484 select WEAK_ORDERING
1485 select WEAK_REORDERING_BEYOND_LLSC
1487 Netlogic Microsystems XLR/XLS processors.
1490 bool "Netlogic XLP SoC"
1491 depends on SYS_HAS_CPU_XLP
1492 select CPU_SUPPORTS_32BIT_KERNEL
1493 select CPU_SUPPORTS_64BIT_KERNEL
1494 select CPU_SUPPORTS_HIGHMEM
1496 select WEAK_ORDERING
1497 select WEAK_REORDERING_BEYOND_LLSC
1498 select CPU_HAS_PREFETCH
1501 Netlogic Microsystems XLP processors.
1505 config CPU_NOP_WORKAROUNDS
1508 config CPU_JUMP_WORKAROUNDS
1511 config CPU_LOONGSON2F_WORKAROUNDS
1512 bool "Loongson 2F Workarounds"
1514 select CPU_NOP_WORKAROUNDS
1515 select CPU_JUMP_WORKAROUNDS
1517 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1518 require workarounds. Without workarounds the system may hang
1519 unexpectedly. For more information please refer to the gas
1520 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1522 Loongson 2F03 and later have fixed these issues and no workarounds
1523 are needed. The workarounds have no significant side effect on them
1524 but may decrease the performance of the system so this option should
1525 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1528 If unsure, please say Y.
1529 endif # CPU_LOONGSON2F
1531 config SYS_SUPPORTS_ZBOOT
1533 select HAVE_KERNEL_GZIP
1534 select HAVE_KERNEL_BZIP2
1535 select HAVE_KERNEL_LZMA
1536 select HAVE_KERNEL_LZO
1538 config SYS_SUPPORTS_ZBOOT_UART16550
1540 select SYS_SUPPORTS_ZBOOT
1542 config CPU_LOONGSON2
1544 select CPU_SUPPORTS_32BIT_KERNEL
1545 select CPU_SUPPORTS_64BIT_KERNEL
1546 select CPU_SUPPORTS_HIGHMEM
1547 select CPU_SUPPORTS_HUGEPAGES
1549 config CPU_LOONGSON1
1553 select CPU_HAS_PREFETCH
1554 select CPU_SUPPORTS_32BIT_KERNEL
1555 select CPU_SUPPORTS_HIGHMEM
1560 select CPU_SUPPORTS_32BIT_KERNEL
1561 select DMA_NONCOHERENT
1563 select SWAP_IO_SPACE
1564 select WEAK_ORDERING
1566 config SYS_HAS_CPU_LOONGSON2E
1569 config SYS_HAS_CPU_LOONGSON2F
1571 select CPU_SUPPORTS_CPUFREQ
1572 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1573 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1575 config SYS_HAS_CPU_LOONGSON1B
1578 config SYS_HAS_CPU_MIPS32_R1
1581 config SYS_HAS_CPU_MIPS32_R2
1584 config SYS_HAS_CPU_MIPS64_R1
1587 config SYS_HAS_CPU_MIPS64_R2
1590 config SYS_HAS_CPU_R3000
1593 config SYS_HAS_CPU_TX39XX
1596 config SYS_HAS_CPU_VR41XX
1599 config SYS_HAS_CPU_R4300
1602 config SYS_HAS_CPU_R4X00
1605 config SYS_HAS_CPU_TX49XX
1608 config SYS_HAS_CPU_R5000
1611 config SYS_HAS_CPU_R5432
1614 config SYS_HAS_CPU_R5500
1617 config SYS_HAS_CPU_R6000
1620 config SYS_HAS_CPU_NEVADA
1623 config SYS_HAS_CPU_R8000
1626 config SYS_HAS_CPU_R10000
1629 config SYS_HAS_CPU_RM7000
1632 config SYS_HAS_CPU_SB1
1635 config SYS_HAS_CPU_CAVIUM_OCTEON
1638 config SYS_HAS_CPU_BMIPS3300
1641 config SYS_HAS_CPU_BMIPS4350
1644 config SYS_HAS_CPU_BMIPS4380
1647 config SYS_HAS_CPU_BMIPS5000
1650 config SYS_HAS_CPU_XLR
1653 config SYS_HAS_CPU_XLP
1657 # CPU may reorder R->R, R->W, W->R, W->W
1658 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1660 config WEAK_ORDERING
1664 # CPU may reorder reads and writes beyond LL/SC
1665 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1667 config WEAK_REORDERING_BEYOND_LLSC
1672 # These two indicate any level of the MIPS32 and MIPS64 architecture
1676 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1680 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1683 # These two indicate the revision of the architecture, either Release 1 or Release 2
1687 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1691 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1693 config SYS_SUPPORTS_32BIT_KERNEL
1695 config SYS_SUPPORTS_64BIT_KERNEL
1697 config CPU_SUPPORTS_32BIT_KERNEL
1699 config CPU_SUPPORTS_64BIT_KERNEL
1701 config CPU_SUPPORTS_CPUFREQ
1703 config CPU_SUPPORTS_ADDRWINCFG
1705 config CPU_SUPPORTS_HUGEPAGES
1707 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1709 config MIPS_PGD_C0_CONTEXT
1711 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1714 # Set to y for ptrace access to watch registers.
1716 config HARDWARE_WATCHPOINTS
1718 default y if CPU_MIPSR1 || CPU_MIPSR2
1723 prompt "Kernel code model"
1725 You should only select this option if you have a workload that
1726 actually benefits from 64-bit processing or if your machine has
1727 large memory. You will only be presented a single option in this
1728 menu if your system does not support both 32-bit and 64-bit kernels.
1731 bool "32-bit kernel"
1732 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1735 Select this option if you want to build a 32-bit kernel.
1737 bool "64-bit kernel"
1738 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1739 select HAVE_SYSCALL_WRAPPERS
1741 Select this option if you want to build a 64-bit kernel.
1746 prompt "Kernel page size"
1747 default PAGE_SIZE_4KB
1749 config PAGE_SIZE_4KB
1751 depends on !CPU_LOONGSON2
1753 This option select the standard 4kB Linux page size. On some
1754 R3000-family processors this is the only available page size. Using
1755 4kB page size will minimize memory consumption and is therefore
1756 recommended for low memory systems.
1758 config PAGE_SIZE_8KB
1760 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1762 Using 8kB page size will result in higher performance kernel at
1763 the price of higher memory consumption. This option is available
1764 only on R8000 and cnMIPS processors. Note that you will need a
1765 suitable Linux distribution to support this.
1767 config PAGE_SIZE_16KB
1769 depends on !CPU_R3000 && !CPU_TX39XX
1771 Using 16kB page size will result in higher performance kernel at
1772 the price of higher memory consumption. This option is available on
1773 all non-R3000 family processors. Note that you will need a suitable
1774 Linux distribution to support this.
1776 config PAGE_SIZE_32KB
1778 depends on CPU_CAVIUM_OCTEON
1780 Using 32kB page size will result in higher performance kernel at
1781 the price of higher memory consumption. This option is available
1782 only on cnMIPS cores. Note that you will need a suitable Linux
1783 distribution to support this.
1785 config PAGE_SIZE_64KB
1787 depends on !CPU_R3000 && !CPU_TX39XX
1789 Using 64kB page size will result in higher performance kernel at
1790 the price of higher memory consumption. This option is available on
1791 all non-R3000 family processor. Not that at the time of this
1792 writing this option is still high experimental.
1796 config FORCE_MAX_ZONEORDER
1797 int "Maximum zone order"
1798 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1799 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1800 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1801 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1802 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1803 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1807 The kernel memory allocator divides physically contiguous memory
1808 blocks into "zones", where each zone is a power of two number of
1809 pages. This option selects the largest power of two that the kernel
1810 keeps in the memory allocator. If you need to allocate very large
1811 blocks of physically contiguous memory, then you may need to
1812 increase this value.
1814 This config option is actually maximum order plus one. For example,
1815 a value of 11 means that the largest free memory block is 2^10 pages.
1817 The page size is not necessarily 4KB. Keep this in mind
1818 when choosing a value for this option.
1823 config IP22_CPU_SCACHE
1828 # Support for a MIPS32 / MIPS64 style S-caches
1830 config MIPS_CPU_SCACHE
1834 config R5000_CPU_SCACHE
1838 config RM7000_CPU_SCACHE
1842 config SIBYTE_DMA_PAGEOPS
1843 bool "Use DMA to clear/copy pages"
1846 Instead of using the CPU to zero and copy pages, use a Data Mover
1847 channel. These DMA channels are otherwise unused by the standard
1848 SiByte Linux port. Seems to give a small performance benefit.
1850 config CPU_HAS_PREFETCH
1853 config CPU_GENERIC_DUMP_TLB
1855 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1859 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1861 config CPU_R4K_CACHE_TLB
1863 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1866 prompt "MIPS MT options"
1868 config MIPS_MT_DISABLED
1869 bool "Disable multithreading support."
1871 Use this option if your workload can't take advantage of
1872 MIPS hardware multithreading support. On systems that don't have
1873 the option of an MT-enabled processor this option will be the only
1874 option in this menu.
1877 bool "Use 1 TC on each available VPE for SMP"
1878 depends on SYS_SUPPORTS_MULTITHREADING
1879 select CPU_MIPSR2_IRQ_VI
1880 select CPU_MIPSR2_IRQ_EI
1882 select NR_CPUS_DEFAULT_2
1884 select SYS_SUPPORTS_SCHED_SMT if SMP
1885 select SYS_SUPPORTS_SMP
1887 select MIPS_PERF_SHARED_TC_COUNTERS
1889 This is a kernel model which is known a VSMP but lately has been
1890 marketesed into SMVP.
1891 Virtual SMP uses the processor's VPEs to implement virtual
1892 processors. In currently available configuration of the 34K processor
1893 this allows for a dual processor. Both processors will share the same
1894 primary caches; each will obtain the half of the TLB for it's own
1895 exclusive use. For a layman this model can be described as similar to
1896 what Intel calls Hyperthreading.
1898 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1901 bool "SMTC: Use all TCs on all VPEs for SMP"
1902 depends on CPU_MIPS32_R2
1903 #depends on CPU_MIPS64_R2 # once there is hardware ...
1904 depends on SYS_SUPPORTS_MULTITHREADING
1905 select CPU_MIPSR2_IRQ_VI
1906 select CPU_MIPSR2_IRQ_EI
1908 select NR_CPUS_DEFAULT_8
1910 select SYS_SUPPORTS_SMP
1913 This is a kernel model which is known a SMTC or lately has been
1914 marketesed into SMVP.
1915 is presenting the available TC's of the core as processors to Linux.
1916 On currently available 34K processors this means a Linux system will
1917 see up to 5 processors. The implementation of the SMTC kernel differs
1918 significantly from VSMP and cannot efficiently coexist in the same
1919 kernel binary so the choice between VSMP and SMTC is a compile time
1922 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1930 bool "SMT (multithreading) scheduler support"
1931 depends on SYS_SUPPORTS_SCHED_SMT
1934 SMT scheduler support improves the CPU scheduler's decision making
1935 when dealing with MIPS MT enabled cores at a cost of slightly
1936 increased overhead in some places. If unsure say N here.
1938 config SYS_SUPPORTS_SCHED_SMT
1941 config SYS_SUPPORTS_MULTITHREADING
1944 config MIPS_MT_FPAFF
1945 bool "Dynamic FPU affinity for FP-intensive threads"
1947 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1949 config MIPS_VPE_LOADER
1950 bool "VPE loader support."
1951 depends on SYS_SUPPORTS_MULTITHREADING
1952 select CPU_MIPSR2_IRQ_VI
1953 select CPU_MIPSR2_IRQ_EI
1956 Includes a loader for loading an elf relocatable object
1957 onto another VPE and running it.
1959 config MIPS_MT_SMTC_IM_BACKSTOP
1960 bool "Use per-TC register bits as backstop for inhibited IM bits"
1961 depends on MIPS_MT_SMTC
1964 To support multiple TC microthreads acting as "CPUs" within
1965 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1966 during interrupt handling. To support legacy drivers and interrupt
1967 controller management code, SMTC has a "backstop" to track and
1968 if necessary restore the interrupt mask. This has some performance
1969 impact on interrupt service overhead.
1971 config MIPS_MT_SMTC_IRQAFF
1972 bool "Support IRQ affinity API"
1973 depends on MIPS_MT_SMTC
1976 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1977 for SMTC Linux kernel. Requires platform support, of which
1978 an example can be found in the MIPS kernel i8259 and Malta
1979 platform code. Adds some overhead to interrupt dispatch, and
1980 should be used only if you know what you are doing.
1982 config MIPS_VPE_LOADER_TOM
1983 bool "Load VPE program into memory hidden from linux"
1984 depends on MIPS_VPE_LOADER
1987 The loader can use memory that is present but has been hidden from
1988 Linux using the kernel command line option "mem=xxMB". It's up to
1989 you to ensure the amount you put in the option and the space your
1990 program requires is less or equal to the amount physically present.
1992 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1993 config MIPS_VPE_APSP_API
1994 bool "Enable support for AP/SP API (RTLX)"
1995 depends on MIPS_VPE_LOADER
1999 bool "MIPS CMP framework support"
2000 depends on SYS_SUPPORTS_MIPS_CMP
2002 select SYS_SUPPORTS_SMP
2003 select SYS_SUPPORTS_SCHED_SMT if SMP
2004 select WEAK_ORDERING
2007 This is a placeholder option for the GCMP work. It will need to
2008 be handled differently...
2010 config SB1_PASS_1_WORKAROUNDS
2012 depends on CPU_SB1_PASS_1
2015 config SB1_PASS_2_WORKAROUNDS
2017 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2020 config SB1_PASS_2_1_WORKAROUNDS
2022 depends on CPU_SB1 && CPU_SB1_PASS_2
2025 config 64BIT_PHYS_ADDR
2028 config ARCH_PHYS_ADDR_T_64BIT
2029 def_bool 64BIT_PHYS_ADDR
2031 config CPU_HAS_SMARTMIPS
2032 depends on SYS_SUPPORTS_SMARTMIPS
2033 bool "Support for the SmartMIPS ASE"
2035 SmartMIPS is a extension of the MIPS32 architecture aimed at
2036 increased security at both hardware and software level for
2037 smartcards. Enabling this option will allow proper use of the
2038 SmartMIPS instructions by Linux applications. However a kernel with
2039 this option will not work on a MIPS core without SmartMIPS core. If
2040 you don't know you probably don't have SmartMIPS and should say N
2050 # Vectored interrupt mode is an R2 feature
2052 config CPU_MIPSR2_IRQ_VI
2056 # Extended interrupt mode is an R2 feature
2058 config CPU_MIPSR2_IRQ_EI
2063 depends on !CPU_R3000
2069 config CPU_DADDI_WORKAROUNDS
2072 config CPU_R4000_WORKAROUNDS
2074 select CPU_R4400_WORKAROUNDS
2076 config CPU_R4400_WORKAROUNDS
2080 # - Highmem only makes sense for the 32-bit kernel.
2081 # - The current highmem code will only work properly on physically indexed
2082 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2083 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2084 # moment we protect the user and offer the highmem option only on machines
2085 # where it's known to be safe. This will not offer highmem on a few systems
2086 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2087 # indexed CPUs but we're playing safe.
2088 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2089 # know they might have memory configurations that could make use of highmem
2093 bool "High Memory Support"
2094 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2096 config CPU_SUPPORTS_HIGHMEM
2099 config SYS_SUPPORTS_HIGHMEM
2102 config SYS_SUPPORTS_SMARTMIPS
2105 config ARCH_FLATMEM_ENABLE
2107 depends on !NUMA && !CPU_LOONGSON2
2109 config ARCH_DISCONTIGMEM_ENABLE
2111 default y if SGI_IP27
2113 Say Y to support efficient handling of discontiguous physical memory,
2114 for architectures which are either NUMA (Non-Uniform Memory Access)
2115 or have huge holes in the physical address space for other reasons.
2116 See <file:Documentation/vm/numa> for more.
2118 config ARCH_SPARSEMEM_ENABLE
2120 select SPARSEMEM_STATIC
2124 depends on SYS_SUPPORTS_NUMA
2126 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2127 Access). This option improves performance on systems with more
2128 than two nodes; on two node systems it is generally better to
2129 leave it disabled; on single node systems disable this option
2132 config SYS_SUPPORTS_NUMA
2138 depends on NEED_MULTIPLE_NODES
2140 config HW_PERF_EVENTS
2141 bool "Enable hardware performance counter support for perf events"
2142 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2145 Enable hardware performance counter support for perf events. If
2146 disabled, perf events will use software events only.
2151 bool "Multi-Processing support"
2152 depends on SYS_SUPPORTS_SMP
2153 select USE_GENERIC_SMP_HELPERS
2155 This enables support for systems with more than one CPU. If you have
2156 a system with only one CPU, like most personal computers, say N. If
2157 you have a system with more than one CPU, say Y.
2159 If you say N here, the kernel will run on single and multiprocessor
2160 machines, but will use only one CPU of a multiprocessor machine. If
2161 you say Y here, the kernel will run on many, but not all,
2162 singleprocessor machines. On a singleprocessor machine, the kernel
2163 will run faster if you say N here.
2165 People using multiprocessor machines who say Y here should also say
2166 Y to "Enhanced Real Time Clock Support", below.
2168 See also the SMP-HOWTO available at
2169 <http://www.tldp.org/docs.html#howto>.
2171 If you don't know what to do here, say N.
2176 config SYS_SUPPORTS_MIPS_CMP
2179 config SYS_SUPPORTS_SMP
2182 config NR_CPUS_DEFAULT_1
2185 config NR_CPUS_DEFAULT_2
2188 config NR_CPUS_DEFAULT_4
2191 config NR_CPUS_DEFAULT_8
2194 config NR_CPUS_DEFAULT_16
2197 config NR_CPUS_DEFAULT_32
2200 config NR_CPUS_DEFAULT_64
2204 int "Maximum number of CPUs (2-64)"
2205 range 1 64 if NR_CPUS_DEFAULT_1
2207 default "1" if NR_CPUS_DEFAULT_1
2208 default "2" if NR_CPUS_DEFAULT_2
2209 default "4" if NR_CPUS_DEFAULT_4
2210 default "8" if NR_CPUS_DEFAULT_8
2211 default "16" if NR_CPUS_DEFAULT_16
2212 default "32" if NR_CPUS_DEFAULT_32
2213 default "64" if NR_CPUS_DEFAULT_64
2215 This allows you to specify the maximum number of CPUs which this
2216 kernel will support. The maximum supported value is 32 for 32-bit
2217 kernel and 64 for 64-bit kernels; the minimum value which makes
2218 sense is 1 for Qemu (useful only for kernel debugging purposes)
2219 and 2 for all others.
2221 This is purely to save memory - each supported CPU adds
2222 approximately eight kilobytes to the kernel image. For best
2223 performance should round up your number of processors to the next
2226 config MIPS_PERF_SHARED_TC_COUNTERS
2230 # Timer Interrupt Frequency Configuration
2234 prompt "Timer frequency"
2237 Allows the configuration of the timer frequency.
2240 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2243 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2246 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2249 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2252 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2255 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2258 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2262 config SYS_SUPPORTS_48HZ
2265 config SYS_SUPPORTS_100HZ
2268 config SYS_SUPPORTS_128HZ
2271 config SYS_SUPPORTS_250HZ
2274 config SYS_SUPPORTS_256HZ
2277 config SYS_SUPPORTS_1000HZ
2280 config SYS_SUPPORTS_1024HZ
2283 config SYS_SUPPORTS_ARBIT_HZ
2285 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2286 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2287 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2288 !SYS_SUPPORTS_1024HZ
2293 default 100 if HZ_100
2294 default 128 if HZ_128
2295 default 250 if HZ_250
2296 default 256 if HZ_256
2297 default 1000 if HZ_1000
2298 default 1024 if HZ_1024
2300 source "kernel/Kconfig.preempt"
2303 bool "Kexec system call"
2305 kexec is a system call that implements the ability to shutdown your
2306 current kernel, and to start another kernel. It is like a reboot
2307 but it is independent of the system firmware. And like a reboot
2308 you can start any kernel with it, not just Linux.
2310 The name comes from the similarity to the exec system call.
2312 It is an ongoing process to be certain the hardware in a machine
2313 is properly shutdown, so do not be surprised if this code does not
2314 initially work for you. It may help to enable device hotplugging
2315 support. As of this writing the exact hardware interface is
2316 strongly in flux, so no good recommendation can be made.
2319 bool "Kernel crash dumps"
2321 Generate crash dump after being started by kexec.
2322 This should be normally only set in special crash dump kernels
2323 which are loaded in the main kernel with kexec-tools into
2324 a specially reserved region and then later executed after
2325 a crash by kdump/kexec. The crash dump kernel must be compiled
2326 to a memory address not used by the main kernel or firmware using
2329 config PHYSICAL_START
2330 hex "Physical address where the kernel is loaded"
2331 default "0xffffffff84000000" if 64BIT
2332 default "0x84000000" if 32BIT
2333 depends on CRASH_DUMP
2335 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2336 If you plan to use kernel for capturing the crash dump change
2337 this value to start of the reserved region (the "X" value as
2338 specified in the "crashkernel=YM@XM" command line boot parameter
2339 passed to the panic-ed kernel).
2342 bool "Enable seccomp to safely compute untrusted bytecode"
2346 This kernel feature is useful for number crunching applications
2347 that may need to compute untrusted bytecode during their
2348 execution. By using pipes or other transports made available to
2349 the process as file descriptors supporting the read/write
2350 syscalls, it's possible to isolate those applications in
2351 their own address space using seccomp. Once seccomp is
2352 enabled via /proc/<pid>/seccomp, it cannot be disabled
2353 and the task is only allowed to execute a few safe syscalls
2354 defined by each seccomp mode.
2356 If unsure, say Y. Only embedded should say N here.
2361 select OF_EARLY_FLATTREE
2366 config LOCKDEP_SUPPORT
2370 config STACKTRACE_SUPPORT
2374 source "init/Kconfig"
2376 source "kernel/Kconfig.freezer"
2378 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2386 bool "Support for PCI controller"
2387 depends on HW_HAS_PCI
2389 select GENERIC_PCI_IOMAP
2390 select NO_GENERIC_PCI_IOPORT_MAP
2392 Find out whether you have a PCI motherboard. PCI is the name of a
2393 bus system, i.e. the way the CPU talks to the other stuff inside
2394 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2400 source "drivers/pci/Kconfig"
2402 source "drivers/pci/pcie/Kconfig"
2405 # ISA support is now enabled via select. Too many systems still have the one
2406 # or other ISA chip on the board that users don't know about so don't expect
2407 # users to choose the right thing ...
2414 depends on HW_HAS_EISA
2416 select GENERIC_ISA_DMA
2418 The Extended Industry Standard Architecture (EISA) bus was
2419 developed as an open alternative to the IBM MicroChannel bus.
2421 The EISA bus provided some of the features of the IBM MicroChannel
2422 bus while maintaining backward compatibility with cards made for
2423 the older ISA bus. The EISA bus saw limited use between 1988 and
2424 1995 when it was made obsolete by the PCI bus.
2426 Say Y here if you are building a kernel for an EISA-based machine.
2430 source "drivers/eisa/Kconfig"
2433 bool "TURBOchannel support"
2434 depends on MACH_DECSTATION
2436 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2437 processors. TURBOchannel programming specifications are available
2439 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2441 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2442 Linux driver support status is documented at:
2443 <http://www.linux-mips.org/wiki/DECstation>
2453 select MIPS_EXTERNAL_TIMER
2458 source "drivers/pcmcia/Kconfig"
2460 source "drivers/pci/hotplug/Kconfig"
2463 bool "RapidIO support"
2467 If you say Y here, the kernel will include drivers and
2468 infrastructure code to support RapidIO interconnect devices.
2470 source "drivers/rapidio/Kconfig"
2474 menu "Executable file formats"
2476 source "fs/Kconfig.binfmt"
2481 config MIPS32_COMPAT
2482 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2485 Select this option if you want Linux/MIPS 32-bit binary
2486 compatibility. Since all software available for Linux/MIPS is
2487 currently 32-bit you should say Y here.
2491 depends on MIPS32_COMPAT
2492 select ARCH_WANT_OLD_COMPAT_IPC
2495 config SYSVIPC_COMPAT
2497 depends on COMPAT && SYSVIPC
2501 bool "Kernel support for o32 binaries"
2502 depends on MIPS32_COMPAT
2504 Select this option if you want to run o32 binaries. These are pure
2505 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2506 existing binaries are in this format.
2511 bool "Kernel support for n32 binaries"
2512 depends on MIPS32_COMPAT
2514 Select this option if you want to run n32 binaries. These are
2515 64-bit binaries using 32-bit quantities for addressing and certain
2516 data that would normally be 64-bit. They are used in special
2523 default y if MIPS32_O32 || MIPS32_N32
2527 menu "Power management options"
2529 config ARCH_HIBERNATION_POSSIBLE
2531 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2533 config ARCH_SUSPEND_POSSIBLE
2535 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2537 source "kernel/power/Kconfig"
2541 source "arch/mips/kernel/cpufreq/Kconfig"
2543 source "net/Kconfig"
2545 source "drivers/Kconfig"
2547 source "drivers/firmware/Kconfig"
2551 source "arch/mips/Kconfig.debug"
2553 source "security/Kconfig"
2555 source "crypto/Kconfig"
2557 source "lib/Kconfig"