4 select HAVE_CONTEXT_TRACKING
5 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 if CPU_SUPPORTS_HUGEPAGES && 64BIT
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
43 select MODULES_USE_ELF_REL if MODULES
44 select MODULES_USE_ELF_RELA if MODULES && 64BIT
45 select CLONE_BACKWARDS
47 menu "Machine selection"
54 bool "Alchemy processor based machines"
55 select 64BIT_PHYS_ADDR
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_APM_EMULATION
62 select ARCH_REQUIRE_GPIOLIB
63 select SYS_SUPPORTS_ZBOOT
64 select USB_ARCH_HAS_OHCI
65 select USB_ARCH_HAS_EHCI
68 bool "Texas Instruments AR7"
70 select DMA_NONCOHERENT
76 select SYS_HAS_CPU_MIPS32_R1
77 select SYS_HAS_EARLY_PRINTK
78 select SYS_SUPPORTS_32BIT_KERNEL
79 select SYS_SUPPORTS_LITTLE_ENDIAN
80 select SYS_SUPPORTS_ZBOOT_UART16550
81 select ARCH_REQUIRE_GPIOLIB
85 Support for the Texas Instruments AR7 System-on-a-Chip
86 family: TNETD7100, 7200 and 7300.
89 bool "Atheros AR71XX/AR724X/AR913X based boards"
90 select ARCH_REQUIRE_GPIOLIB
94 select DMA_NONCOHERENT
98 select SYS_HAS_CPU_MIPS32_R2
99 select SYS_HAS_EARLY_PRINTK
100 select SYS_SUPPORTS_32BIT_KERNEL
101 select SYS_SUPPORTS_BIG_ENDIAN
103 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
106 bool "Broadcom BCM47XX based boards"
107 select ARCH_WANT_OPTIONAL_GPIOLIB
111 select DMA_NONCOHERENT
115 select NO_EXCEPT_FILL
116 select SYS_SUPPORTS_32BIT_KERNEL
117 select SYS_SUPPORTS_LITTLE_ENDIAN
118 select SYS_HAS_EARLY_PRINTK
120 Support for BCM47XX based boards
123 bool "Broadcom BCM63XX based boards"
126 select DMA_NONCOHERENT
128 select SYS_HAS_CPU_MIPS32_R1
129 select SYS_SUPPORTS_32BIT_KERNEL
130 select SYS_SUPPORTS_BIG_ENDIAN
131 select SYS_HAS_EARLY_PRINTK
133 select ARCH_REQUIRE_GPIOLIB
136 Support for BCM63XX based boards
143 select DMA_NONCOHERENT
149 select PCI_GT64XXX_PCI0
151 select SYS_HAS_CPU_NEVADA
152 select SYS_HAS_EARLY_PRINTK
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL
155 select SYS_SUPPORTS_LITTLE_ENDIAN
157 config MACH_DECSTATION
164 select CPU_DADDI_WORKAROUNDS if 64BIT
165 select CPU_R4000_WORKAROUNDS if 64BIT
166 select CPU_R4400_WORKAROUNDS if 64BIT
167 select DMA_NONCOHERENT
170 select SYS_HAS_CPU_R3000
171 select SYS_HAS_CPU_R4X00
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL
174 select SYS_SUPPORTS_LITTLE_ENDIAN
175 select SYS_SUPPORTS_128HZ
176 select SYS_SUPPORTS_256HZ
177 select SYS_SUPPORTS_1024HZ
179 This enables support for DEC's MIPS based workstations. For details
180 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
181 DECstation porting pages on <http://decstation.unix-ag.org/>.
183 If you have one of the following DECstation Models you definitely
184 want to choose R4xx0 for the CPU Type:
191 otherwise choose R3000.
194 bool "Jazz family of machines"
197 select ARCH_MAY_HAVE_PC_FDC
200 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
201 select GENERIC_ISA_DMA
202 select HAVE_PCSPKR_PLATFORM
207 select SYS_HAS_CPU_R4X00
208 select SYS_SUPPORTS_32BIT_KERNEL
209 select SYS_SUPPORTS_64BIT_KERNEL
210 select SYS_SUPPORTS_100HZ
212 This a family of machines based on the MIPS R4030 chipset which was
213 used by several vendors to build RISC/os and Windows NT workstations.
214 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
215 Olivetti M700-10 workstations.
218 bool "Ingenic JZ4740 based machines"
219 select SYS_HAS_CPU_MIPS32_R1
220 select SYS_SUPPORTS_32BIT_KERNEL
221 select SYS_SUPPORTS_LITTLE_ENDIAN
222 select SYS_SUPPORTS_ZBOOT_UART16550
223 select DMA_NONCOHERENT
225 select ARCH_REQUIRE_GPIOLIB
226 select SYS_HAS_EARLY_PRINTK
229 select GENERIC_IRQ_CHIP
232 bool "Lantiq based platforms"
233 select DMA_NONCOHERENT
237 select SYS_HAS_CPU_MIPS32_R1
238 select SYS_HAS_CPU_MIPS32_R2
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_HAS_EARLY_PRINTK
243 select ARCH_REQUIRE_GPIOLIB
246 select HAVE_MACH_CLKDEV
250 select PINCTRL_LANTIQ
253 bool "LASAT Networks platforms"
256 select DMA_NONCOHERENT
257 select SYS_HAS_EARLY_PRINTK
260 select PCI_GT64XXX_PCI0
262 select R5000_CPU_SCACHE
263 select SYS_HAS_CPU_R5000
264 select SYS_SUPPORTS_32BIT_KERNEL
265 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
266 select SYS_SUPPORTS_LITTLE_ENDIAN
269 bool "Loongson family of machines"
270 select SYS_SUPPORTS_ZBOOT
272 This enables the support of Loongson family of machines.
274 Loongson is a family of general-purpose MIPS-compatible CPUs.
275 developed at Institute of Computing Technology (ICT),
276 Chinese Academy of Sciences (CAS) in the People's Republic
277 of China. The chief architect is Professor Weiwu Hu.
279 config MACH_LOONGSON1
280 bool "Loongson 1 family of machines"
281 select SYS_SUPPORTS_ZBOOT
283 This enables support for the Loongson 1 based machines.
285 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
286 the ICT (Institute of Computing Technology) and the Chinese Academy
290 bool "MIPS Malta board"
291 select ARCH_MAY_HAVE_PC_FDC
297 select DMA_NONCOHERENT
298 select GENERIC_ISA_DMA
299 select HAVE_PCSPKR_PLATFORM
306 select MIPS_CPU_SCACHE
307 select PCI_GT64XXX_PCI0
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_HAS_CPU_MIPS64_R1
313 select SYS_HAS_CPU_MIPS64_R2
314 select SYS_HAS_CPU_NEVADA
315 select SYS_HAS_CPU_RM7000
316 select SYS_HAS_EARLY_PRINTK
317 select SYS_SUPPORTS_32BIT_KERNEL
318 select SYS_SUPPORTS_64BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 select SYS_SUPPORTS_MIPS_CMP
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_SUPPORTS_SMARTMIPS
324 select SYS_SUPPORTS_ZBOOT
326 This enables support for the MIPS Technologies Malta evaluation
330 bool "MIPS SEAD3 board"
336 select CPU_MIPSR2_IRQ_VI
337 select CPU_MIPSR2_IRQ_EI
338 select DMA_NONCOHERENT
341 select MIPS_CPU_SCACHE
343 select SYS_HAS_CPU_MIPS32_R1
344 select SYS_HAS_CPU_MIPS32_R2
345 select SYS_HAS_CPU_MIPS64_R1
346 select SYS_HAS_EARLY_PRINTK
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL
349 select SYS_SUPPORTS_BIG_ENDIAN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351 select SYS_SUPPORTS_SMARTMIPS
352 select SYS_SUPPORTS_MICROMIPS
353 select USB_ARCH_HAS_EHCI
354 select USB_EHCI_BIG_ENDIAN_DESC
355 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 "PMC-Sierra MSP chipsets"
392 select DMA_NONCOHERENT
394 select NO_EXCEPT_FILL
396 select SYS_HAS_CPU_MIPS32_R1
397 select SYS_HAS_CPU_MIPS32_R2
398 select SYS_SUPPORTS_32BIT_KERNEL
399 select SYS_SUPPORTS_BIG_ENDIAN
402 select SERIAL_8250_CONSOLE
403 select USB_EHCI_BIG_ENDIAN_MMIO
404 select USB_EHCI_BIG_ENDIAN_DESC
406 This adds support for the PMC-Sierra family of Multi-Service
407 Processor System-On-A-Chips. These parts include a number
408 of integrated peripherals, interfaces and DSPs in addition to
409 a variety of MIPS cores.
415 select CPU_MIPSR2_IRQ_VI
416 select CPU_MIPSR2_IRQ_EI
418 select DMA_NONCOHERENT
420 select SYS_HAS_EARLY_PRINTK
421 select SYS_HAS_CPU_MIPS32_R2
422 select SYS_SUPPORTS_32BIT_KERNEL
423 select SYS_SUPPORTS_BIG_ENDIAN
424 select SYS_SUPPORTS_HIGHMEM
425 select USB_OHCI_LITTLE_ENDIAN
427 This enables support for the Cisco PowerTV Platform.
430 bool "Ralink based machines"
434 select DMA_NONCOHERENT
437 select SYS_HAS_CPU_MIPS32_R1
438 select SYS_HAS_CPU_MIPS32_R2
439 select SYS_SUPPORTS_32BIT_KERNEL
440 select SYS_SUPPORTS_LITTLE_ENDIAN
441 select SYS_HAS_EARLY_PRINTK
442 select HAVE_MACH_CLKDEV
446 bool "SGI IP22 (Indy/Indigo2)"
452 select DEFAULT_SGI_PARTITION
453 select DMA_NONCOHERENT
457 select IP22_CPU_SCACHE
459 select GENERIC_ISA_DMA_SUPPORT_BROKEN
461 select SGI_HAS_INDYDOG
467 select SYS_HAS_CPU_R4X00
468 select SYS_HAS_CPU_R5000
470 # Disable EARLY_PRINTK for now since it leads to overwritten prom
471 # memory during early boot on some machines.
473 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
474 # for a more details discussion
476 # select SYS_HAS_EARLY_PRINTK
477 select SYS_SUPPORTS_32BIT_KERNEL
478 select SYS_SUPPORTS_64BIT_KERNEL
479 select SYS_SUPPORTS_BIG_ENDIAN
481 This are the SGI Indy, Challenge S and Indigo2, as well as certain
482 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
483 that runs on these, say Y here.
486 bool "SGI IP27 (Origin200/2000)"
490 select DEFAULT_SGI_PARTITION
492 select SYS_HAS_EARLY_PRINTK
494 select NR_CPUS_DEFAULT_64
495 select SYS_HAS_CPU_R10000
496 select SYS_SUPPORTS_64BIT_KERNEL
497 select SYS_SUPPORTS_BIG_ENDIAN
498 select SYS_SUPPORTS_NUMA
499 select SYS_SUPPORTS_SMP
501 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
502 workstations. To compile a Linux kernel that runs on these, say Y
506 bool "SGI IP28 (Indigo2 R10k)"
512 select DEFAULT_SGI_PARTITION
513 select DMA_NONCOHERENT
514 select GENERIC_ISA_DMA_SUPPORT_BROKEN
520 select SGI_HAS_INDYDOG
526 select SYS_HAS_CPU_R10000
528 # Disable EARLY_PRINTK for now since it leads to overwritten prom
529 # memory during early boot on some machines.
531 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
532 # for a more details discussion
534 # select SYS_HAS_EARLY_PRINTK
535 select SYS_SUPPORTS_64BIT_KERNEL
536 select SYS_SUPPORTS_BIG_ENDIAN
538 This is the SGI Indigo2 with R10000 processor. To compile a Linux
539 kernel that runs on these, say Y here.
548 select DMA_NONCOHERENT
551 select R5000_CPU_SCACHE
552 select RM7000_CPU_SCACHE
553 select SYS_HAS_CPU_R5000
554 select SYS_HAS_CPU_R10000 if BROKEN
555 select SYS_HAS_CPU_RM7000
556 select SYS_HAS_CPU_NEVADA
557 select SYS_SUPPORTS_64BIT_KERNEL
558 select SYS_SUPPORTS_BIG_ENDIAN
560 If you want this kernel to run on SGI O2 workstation, say Y here.
563 bool "Sibyte BCM91120C-CRhine"
566 select SIBYTE_BCM1120
568 select SYS_HAS_CPU_SB1
569 select SYS_SUPPORTS_BIG_ENDIAN
570 select SYS_SUPPORTS_LITTLE_ENDIAN
573 bool "Sibyte BCM91120x-Carmel"
576 select SIBYTE_BCM1120
578 select SYS_HAS_CPU_SB1
579 select SYS_SUPPORTS_BIG_ENDIAN
580 select SYS_SUPPORTS_LITTLE_ENDIAN
583 bool "Sibyte BCM91125C-CRhone"
586 select SIBYTE_BCM1125
588 select SYS_HAS_CPU_SB1
589 select SYS_SUPPORTS_BIG_ENDIAN
590 select SYS_SUPPORTS_HIGHMEM
591 select SYS_SUPPORTS_LITTLE_ENDIAN
594 bool "Sibyte BCM91125E-Rhone"
597 select SIBYTE_BCM1125H
599 select SYS_HAS_CPU_SB1
600 select SYS_SUPPORTS_BIG_ENDIAN
601 select SYS_SUPPORTS_LITTLE_ENDIAN
604 bool "Sibyte BCM91250A-SWARM"
607 select HAVE_PATA_PLATFORM
608 select NR_CPUS_DEFAULT_2
611 select SYS_HAS_CPU_SB1
612 select SYS_SUPPORTS_BIG_ENDIAN
613 select SYS_SUPPORTS_HIGHMEM
614 select SYS_SUPPORTS_LITTLE_ENDIAN
615 select ZONE_DMA32 if 64BIT
617 config SIBYTE_LITTLESUR
618 bool "Sibyte BCM91250C2-LittleSur"
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"
634 select NR_CPUS_DEFAULT_2
637 select SYS_HAS_CPU_SB1
638 select SYS_SUPPORTS_BIG_ENDIAN
639 select SYS_SUPPORTS_LITTLE_ENDIAN
642 bool "Sibyte BCM91480B-BigSur"
645 select NR_CPUS_DEFAULT_4
646 select SIBYTE_BCM1x80
648 select SYS_HAS_CPU_SB1
649 select SYS_SUPPORTS_BIG_ENDIAN
650 select SYS_SUPPORTS_HIGHMEM
651 select SYS_SUPPORTS_LITTLE_ENDIAN
652 select ZONE_DMA32 if 64BIT
655 bool "SNI RM200/300/400"
656 select FW_ARC if CPU_LITTLE_ENDIAN
657 select FW_ARC32 if CPU_LITTLE_ENDIAN
658 select FW_SNIPROM if CPU_BIG_ENDIAN
659 select ARCH_MAY_HAVE_PC_FDC
663 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
664 select DMA_NONCOHERENT
665 select GENERIC_ISA_DMA
666 select HAVE_PCSPKR_PLATFORM
673 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
674 select SYS_HAS_CPU_R4X00
675 select SYS_HAS_CPU_R5000
676 select SYS_HAS_CPU_R10000
677 select R5000_CPU_SCACHE
678 select SYS_HAS_EARLY_PRINTK
679 select SYS_SUPPORTS_32BIT_KERNEL
680 select SYS_SUPPORTS_64BIT_KERNEL
681 select SYS_SUPPORTS_BIG_ENDIAN
682 select SYS_SUPPORTS_HIGHMEM
683 select SYS_SUPPORTS_LITTLE_ENDIAN
685 The SNI RM200/300/400 are MIPS-based machines manufactured by
686 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
687 Technology and now in turn merged with Fujitsu. Say Y here to
688 support this machine type.
691 bool "Toshiba TX39 series based machines"
694 bool "Toshiba TX49 series based machines"
696 config MIKROTIK_RB532
697 bool "Mikrotik RB532 boards"
700 select DMA_NONCOHERENT
703 select SYS_HAS_CPU_MIPS32_R1
704 select SYS_SUPPORTS_32BIT_KERNEL
705 select SYS_SUPPORTS_LITTLE_ENDIAN
708 select ARCH_REQUIRE_GPIOLIB
710 Support the Mikrotik(tm) RouterBoard 532 series,
711 based on the IDT RC32434 SoC.
714 bool "Wind River PPMC board"
719 select DMA_NONCOHERENT
721 select PCI_GT64XXX_PCI0
723 select SYS_HAS_CPU_MIPS32_R1
724 select SYS_HAS_CPU_MIPS32_R2
725 select SYS_HAS_CPU_MIPS64_R1
726 select SYS_HAS_CPU_NEVADA
727 select SYS_HAS_CPU_RM7000
728 select SYS_SUPPORTS_32BIT_KERNEL
729 select SYS_SUPPORTS_64BIT_KERNEL
730 select SYS_SUPPORTS_BIG_ENDIAN
731 select SYS_SUPPORTS_LITTLE_ENDIAN
733 This enables support for the Wind River MIPS32 4KC PPMC evaluation
734 board, which is based on GT64120 bridge chip.
736 config CAVIUM_OCTEON_SOC
737 bool "Cavium Networks Octeon SoC based boards"
739 select 64BIT_PHYS_ADDR
741 select SYS_SUPPORTS_64BIT_KERNEL
742 select SYS_SUPPORTS_BIG_ENDIAN
744 select SYS_SUPPORTS_HOTPLUG_CPU
745 select SYS_HAS_EARLY_PRINTK
746 select SYS_HAS_CPU_CAVIUM_OCTEON
749 select ARCH_SUPPORTS_MSI
751 select USB_ARCH_HAS_OHCI
752 select USB_ARCH_HAS_EHCI
755 This option supports all of the Octeon reference boards from Cavium
756 Networks. It builds a kernel that dynamically determines the Octeon
757 CPU type and supports all known board reference implementations.
758 Some of the supported boards are:
765 Say Y here for most Octeon reference boards.
768 bool "Netlogic XLR/XLS based systems"
771 select SYS_HAS_CPU_XLR
772 select SYS_SUPPORTS_SMP
775 select SYS_SUPPORTS_32BIT_KERNEL
776 select SYS_SUPPORTS_64BIT_KERNEL
777 select 64BIT_PHYS_ADDR
778 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HIGHMEM
781 select NR_CPUS_DEFAULT_32
785 select ARCH_SUPPORTS_MSI
786 select ZONE_DMA32 if 64BIT
788 select SYS_HAS_EARLY_PRINTK
789 select USB_ARCH_HAS_OHCI if USB_SUPPORT
790 select USB_ARCH_HAS_EHCI if USB_SUPPORT
792 Support for systems based on Netlogic XLR and XLS processors.
793 Say Y here if you have a XLR or XLS based board.
796 bool "Netlogic XLP based systems"
799 select SYS_HAS_CPU_XLP
800 select SYS_SUPPORTS_SMP
802 select SYS_SUPPORTS_32BIT_KERNEL
803 select SYS_SUPPORTS_64BIT_KERNEL
804 select 64BIT_PHYS_ADDR
805 select SYS_SUPPORTS_BIG_ENDIAN
806 select SYS_SUPPORTS_LITTLE_ENDIAN
807 select SYS_SUPPORTS_HIGHMEM
809 select NR_CPUS_DEFAULT_32
813 select ZONE_DMA32 if 64BIT
815 select SYS_HAS_EARLY_PRINTK
818 This board is based on Netlogic XLP Processor.
819 Say Y here if you have a XLP based board.
823 source "arch/mips/alchemy/Kconfig"
824 source "arch/mips/ath79/Kconfig"
825 source "arch/mips/bcm47xx/Kconfig"
826 source "arch/mips/bcm63xx/Kconfig"
827 source "arch/mips/jazz/Kconfig"
828 source "arch/mips/jz4740/Kconfig"
829 source "arch/mips/lantiq/Kconfig"
830 source "arch/mips/lasat/Kconfig"
831 source "arch/mips/pmcs-msp71xx/Kconfig"
832 source "arch/mips/powertv/Kconfig"
833 source "arch/mips/ralink/Kconfig"
834 source "arch/mips/sgi-ip27/Kconfig"
835 source "arch/mips/sibyte/Kconfig"
836 source "arch/mips/txx9/Kconfig"
837 source "arch/mips/vr41xx/Kconfig"
838 source "arch/mips/cavium-octeon/Kconfig"
839 source "arch/mips/loongson/Kconfig"
840 source "arch/mips/loongson1/Kconfig"
841 source "arch/mips/netlogic/Kconfig"
845 config RWSEM_GENERIC_SPINLOCK
849 config RWSEM_XCHGADD_ALGORITHM
852 config ARCH_HAS_ILOG2_U32
856 config ARCH_HAS_ILOG2_U64
860 config GENERIC_HWEIGHT
864 config GENERIC_CALIBRATE_DELAY
868 config SCHED_OMIT_FRAME_POINTER
873 # Select some configuration options automatically based on user selections.
878 config ARCH_MAY_HAVE_PC_FDC
924 select ARCH_REQUIRE_GPIOLIB
930 config ARCH_DMA_ADDR_T_64BIT
931 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
936 config DMA_NONCOHERENT
938 select NEED_DMA_MAP_STATE
940 config NEED_DMA_MAP_STATE
943 config SYS_HAS_EARLY_PRINTK
947 bool "Support for hot-pluggable CPUs"
948 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
950 Say Y here to allow turning CPUs off and on. CPUs can be
951 controlled through /sys/devices/system/cpu.
952 (Note: power management support will enable this option
953 automatically on SMP systems. )
954 Say N if you want to disable CPU hotplug.
956 config SYS_SUPPORTS_HOTPLUG_CPU
980 config GENERIC_ISA_DMA
982 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
985 config GENERIC_ISA_DMA_SUPPORT_BROKEN
987 select GENERIC_ISA_DMA
996 # Endianness selection. Sufficiently obscure so many users don't know what to
997 # answer,so we try hard to limit the available choices. Also the use of a
998 # choice statement should be more obvious to the user.
1001 prompt "Endianness selection"
1003 Some MIPS machines can be configured for either little or big endian
1004 byte order. These modes require different kernels and a different
1005 Linux distribution. In general there is one preferred byteorder for a
1006 particular system but some systems are just as commonly used in the
1007 one or the other endianness.
1009 config CPU_BIG_ENDIAN
1011 depends on SYS_SUPPORTS_BIG_ENDIAN
1013 config CPU_LITTLE_ENDIAN
1014 bool "Little endian"
1015 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1022 config SYS_SUPPORTS_APM_EMULATION
1025 config SYS_SUPPORTS_BIG_ENDIAN
1028 config SYS_SUPPORTS_LITTLE_ENDIAN
1031 config SYS_SUPPORTS_HUGETLBFS
1033 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1036 config MIPS_HUGE_TLB_SUPPORT
1037 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1060 config PCI_GT64XXX_PCI0
1063 config NO_EXCEPT_FILL
1070 select DMA_NONCOHERENT
1072 select SWAP_IO_SPACE
1073 select SYS_HAS_CPU_R5500
1074 select SYS_SUPPORTS_32BIT_KERNEL
1075 select SYS_SUPPORTS_64BIT_KERNEL
1076 select SYS_SUPPORTS_BIG_ENDIAN
1083 select DMA_NONCOHERENT
1084 select SYS_HAS_CPU_MIPS32_R2
1085 select SYS_SUPPORTS_32BIT_KERNEL
1086 select SYS_SUPPORTS_LITTLE_ENDIAN
1087 select SYS_SUPPORTS_BIG_ENDIAN
1088 select CPU_MIPSR2_IRQ_VI
1094 config SWAP_IO_SPACE
1097 config SGI_HAS_INDYDOG
1109 config SGI_HAS_ZILOG
1112 config SGI_HAS_I8042
1115 config DEFAULT_SGI_PARTITION
1127 config MIPS_L1_CACHE_SHIFT
1129 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1130 default "6" if MIPS_CPU_SCACHE
1131 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1134 config HAVE_STD_PC_SERIAL_PORT
1138 bool "ARC console support"
1139 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1143 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1148 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1157 menu "CPU selection"
1163 config CPU_LOONGSON2E
1165 depends on SYS_HAS_CPU_LOONGSON2E
1166 select CPU_LOONGSON2
1168 The Loongson 2E processor implements the MIPS III instruction set
1169 with many extensions.
1171 It has an internal FPGA northbridge, which is compatible to
1174 config CPU_LOONGSON2F
1176 depends on SYS_HAS_CPU_LOONGSON2F
1177 select CPU_LOONGSON2
1178 select ARCH_REQUIRE_GPIOLIB
1180 The Loongson 2F processor implements the MIPS III instruction set
1181 with many extensions.
1183 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1184 have a similar programming interface with FPGA northbridge used in
1187 config CPU_LOONGSON1B
1189 depends on SYS_HAS_CPU_LOONGSON1B
1190 select CPU_LOONGSON1
1192 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1193 release 2 instruction set.
1195 config CPU_MIPS32_R1
1196 bool "MIPS32 Release 1"
1197 depends on SYS_HAS_CPU_MIPS32_R1
1198 select CPU_HAS_PREFETCH
1199 select CPU_SUPPORTS_32BIT_KERNEL
1200 select CPU_SUPPORTS_HIGHMEM
1202 Choose this option to build a kernel for release 1 or later of the
1203 MIPS32 architecture. Most modern embedded systems with a 32-bit
1204 MIPS processor are based on a MIPS32 processor. If you know the
1205 specific type of processor in your system, choose those that one
1206 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1207 Release 2 of the MIPS32 architecture is available since several
1208 years so chances are you even have a MIPS32 Release 2 processor
1209 in which case you should choose CPU_MIPS32_R2 instead for better
1212 config CPU_MIPS32_R2
1213 bool "MIPS32 Release 2"
1214 depends on SYS_HAS_CPU_MIPS32_R2
1215 select CPU_HAS_PREFETCH
1216 select CPU_SUPPORTS_32BIT_KERNEL
1217 select CPU_SUPPORTS_HIGHMEM
1220 Choose this option to build a kernel for release 2 or later of the
1221 MIPS32 architecture. Most modern embedded systems with a 32-bit
1222 MIPS processor are based on a MIPS32 processor. If you know the
1223 specific type of processor in your system, choose those that one
1224 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1226 config CPU_MIPS64_R1
1227 bool "MIPS64 Release 1"
1228 depends on SYS_HAS_CPU_MIPS64_R1
1229 select CPU_HAS_PREFETCH
1230 select CPU_SUPPORTS_32BIT_KERNEL
1231 select CPU_SUPPORTS_64BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1233 select CPU_SUPPORTS_HUGEPAGES
1235 Choose this option to build a kernel for release 1 or later of the
1236 MIPS64 architecture. Many modern embedded systems with a 64-bit
1237 MIPS processor are based on a MIPS64 processor. If you know the
1238 specific type of processor in your system, choose those that one
1239 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1240 Release 2 of the MIPS64 architecture is available since several
1241 years so chances are you even have a MIPS64 Release 2 processor
1242 in which case you should choose CPU_MIPS64_R2 instead for better
1245 config CPU_MIPS64_R2
1246 bool "MIPS64 Release 2"
1247 depends on SYS_HAS_CPU_MIPS64_R2
1248 select CPU_HAS_PREFETCH
1249 select CPU_SUPPORTS_32BIT_KERNEL
1250 select CPU_SUPPORTS_64BIT_KERNEL
1251 select CPU_SUPPORTS_HIGHMEM
1252 select CPU_SUPPORTS_HUGEPAGES
1254 Choose this option to build a kernel for release 2 or later of the
1255 MIPS64 architecture. Many modern embedded systems with a 64-bit
1256 MIPS processor are based on a MIPS64 processor. If you know the
1257 specific type of processor in your system, choose those that one
1258 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1262 depends on SYS_HAS_CPU_R3000
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_HIGHMEM
1267 Please make sure to pick the right CPU type. Linux/MIPS is not
1268 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1269 *not* work on R4000 machines and vice versa. However, since most
1270 of the supported machines have an R4000 (or similar) CPU, R4x00
1271 might be a safe bet. If the resulting kernel does not work,
1272 try to recompile with R3000.
1276 depends on SYS_HAS_CPU_TX39XX
1277 select CPU_SUPPORTS_32BIT_KERNEL
1281 depends on SYS_HAS_CPU_VR41XX
1282 select CPU_SUPPORTS_32BIT_KERNEL
1283 select CPU_SUPPORTS_64BIT_KERNEL
1285 The options selects support for the NEC VR4100 series of processors.
1286 Only choose this option if you have one of these processors as a
1287 kernel built with this option will not run on any other type of
1288 processor or vice versa.
1292 depends on SYS_HAS_CPU_R4300
1293 select CPU_SUPPORTS_32BIT_KERNEL
1294 select CPU_SUPPORTS_64BIT_KERNEL
1296 MIPS Technologies R4300-series processors.
1300 depends on SYS_HAS_CPU_R4X00
1301 select CPU_SUPPORTS_32BIT_KERNEL
1302 select CPU_SUPPORTS_64BIT_KERNEL
1303 select CPU_SUPPORTS_HUGEPAGES
1305 MIPS Technologies R4000-series processors other than 4300, including
1306 the R4000, R4400, R4600, and 4700.
1310 depends on SYS_HAS_CPU_TX49XX
1311 select CPU_HAS_PREFETCH
1312 select CPU_SUPPORTS_32BIT_KERNEL
1313 select CPU_SUPPORTS_64BIT_KERNEL
1314 select CPU_SUPPORTS_HUGEPAGES
1318 depends on SYS_HAS_CPU_R5000
1319 select CPU_SUPPORTS_32BIT_KERNEL
1320 select CPU_SUPPORTS_64BIT_KERNEL
1321 select CPU_SUPPORTS_HUGEPAGES
1323 MIPS Technologies R5000-series processors other than the Nevada.
1327 depends on SYS_HAS_CPU_R5432
1328 select CPU_SUPPORTS_32BIT_KERNEL
1329 select CPU_SUPPORTS_64BIT_KERNEL
1330 select CPU_SUPPORTS_HUGEPAGES
1334 depends on SYS_HAS_CPU_R5500
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HUGEPAGES
1339 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1344 depends on SYS_HAS_CPU_R6000
1345 select CPU_SUPPORTS_32BIT_KERNEL
1347 MIPS Technologies R6000 and R6000A series processors. Note these
1348 processors are extremely rare and the support for them is incomplete.
1352 depends on SYS_HAS_CPU_NEVADA
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1357 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1361 depends on SYS_HAS_CPU_R8000
1362 select CPU_HAS_PREFETCH
1363 select CPU_SUPPORTS_64BIT_KERNEL
1365 MIPS Technologies R8000 processors. Note these processors are
1366 uncommon and the support for them is incomplete.
1370 depends on SYS_HAS_CPU_R10000
1371 select CPU_HAS_PREFETCH
1372 select CPU_SUPPORTS_32BIT_KERNEL
1373 select CPU_SUPPORTS_64BIT_KERNEL
1374 select CPU_SUPPORTS_HIGHMEM
1375 select CPU_SUPPORTS_HUGEPAGES
1377 MIPS Technologies R10000-series processors.
1381 depends on SYS_HAS_CPU_RM7000
1382 select CPU_HAS_PREFETCH
1383 select CPU_SUPPORTS_32BIT_KERNEL
1384 select CPU_SUPPORTS_64BIT_KERNEL
1385 select CPU_SUPPORTS_HIGHMEM
1386 select CPU_SUPPORTS_HUGEPAGES
1390 depends on SYS_HAS_CPU_SB1
1391 select CPU_SUPPORTS_32BIT_KERNEL
1392 select CPU_SUPPORTS_64BIT_KERNEL
1393 select CPU_SUPPORTS_HIGHMEM
1394 select CPU_SUPPORTS_HUGEPAGES
1395 select WEAK_ORDERING
1397 config CPU_CAVIUM_OCTEON
1398 bool "Cavium Octeon processor"
1399 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1400 select ARCH_SPARSEMEM_ENABLE
1401 select CPU_HAS_PREFETCH
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select SYS_SUPPORTS_SMP
1404 select NR_CPUS_DEFAULT_16
1405 select WEAK_ORDERING
1406 select CPU_SUPPORTS_HIGHMEM
1407 select CPU_SUPPORTS_HUGEPAGES
1410 select USB_EHCI_BIG_ENDIAN_MMIO
1412 The Cavium Octeon processor is a highly integrated chip containing
1413 many ethernet hardware widgets for networking tasks. The processor
1414 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1415 Full details can be found at http://www.caviumnetworks.com.
1417 config CPU_BMIPS3300
1419 depends on SYS_HAS_CPU_BMIPS3300
1422 Broadcom BMIPS3300 processors.
1424 config CPU_BMIPS4350
1426 depends on SYS_HAS_CPU_BMIPS4350
1428 select SYS_SUPPORTS_SMP
1429 select SYS_SUPPORTS_HOTPLUG_CPU
1431 Broadcom BMIPS4350 ("VIPER") processors.
1433 config CPU_BMIPS4380
1435 depends on SYS_HAS_CPU_BMIPS4380
1437 select SYS_SUPPORTS_SMP
1438 select SYS_SUPPORTS_HOTPLUG_CPU
1440 Broadcom BMIPS4380 processors.
1442 config CPU_BMIPS5000
1444 depends on SYS_HAS_CPU_BMIPS5000
1446 select CPU_SUPPORTS_HIGHMEM
1447 select MIPS_CPU_SCACHE
1448 select SYS_SUPPORTS_SMP
1449 select SYS_SUPPORTS_HOTPLUG_CPU
1451 Broadcom BMIPS5000 processors.
1454 bool "Netlogic XLR SoC"
1455 depends on SYS_HAS_CPU_XLR
1456 select CPU_SUPPORTS_32BIT_KERNEL
1457 select CPU_SUPPORTS_64BIT_KERNEL
1458 select CPU_SUPPORTS_HIGHMEM
1459 select CPU_SUPPORTS_HUGEPAGES
1460 select WEAK_ORDERING
1461 select WEAK_REORDERING_BEYOND_LLSC
1463 Netlogic Microsystems XLR/XLS processors.
1466 bool "Netlogic XLP SoC"
1467 depends on SYS_HAS_CPU_XLP
1468 select CPU_SUPPORTS_32BIT_KERNEL
1469 select CPU_SUPPORTS_64BIT_KERNEL
1470 select CPU_SUPPORTS_HIGHMEM
1471 select WEAK_ORDERING
1472 select WEAK_REORDERING_BEYOND_LLSC
1473 select CPU_HAS_PREFETCH
1476 Netlogic Microsystems XLP processors.
1480 config CPU_NOP_WORKAROUNDS
1483 config CPU_JUMP_WORKAROUNDS
1486 config CPU_LOONGSON2F_WORKAROUNDS
1487 bool "Loongson 2F Workarounds"
1489 select CPU_NOP_WORKAROUNDS
1490 select CPU_JUMP_WORKAROUNDS
1492 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1493 require workarounds. Without workarounds the system may hang
1494 unexpectedly. For more information please refer to the gas
1495 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1497 Loongson 2F03 and later have fixed these issues and no workarounds
1498 are needed. The workarounds have no significant side effect on them
1499 but may decrease the performance of the system so this option should
1500 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1503 If unsure, please say Y.
1504 endif # CPU_LOONGSON2F
1506 config SYS_SUPPORTS_ZBOOT
1508 select HAVE_KERNEL_GZIP
1509 select HAVE_KERNEL_BZIP2
1510 select HAVE_KERNEL_LZMA
1511 select HAVE_KERNEL_LZO
1513 config SYS_SUPPORTS_ZBOOT_UART16550
1515 select SYS_SUPPORTS_ZBOOT
1517 config CPU_LOONGSON2
1519 select CPU_SUPPORTS_32BIT_KERNEL
1520 select CPU_SUPPORTS_64BIT_KERNEL
1521 select CPU_SUPPORTS_HIGHMEM
1522 select CPU_SUPPORTS_HUGEPAGES
1524 config CPU_LOONGSON1
1528 select CPU_HAS_PREFETCH
1529 select CPU_SUPPORTS_32BIT_KERNEL
1530 select CPU_SUPPORTS_HIGHMEM
1535 select CPU_SUPPORTS_32BIT_KERNEL
1536 select DMA_NONCOHERENT
1538 select SWAP_IO_SPACE
1539 select WEAK_ORDERING
1541 config SYS_HAS_CPU_LOONGSON2E
1544 config SYS_HAS_CPU_LOONGSON2F
1546 select CPU_SUPPORTS_CPUFREQ
1547 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1548 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1550 config SYS_HAS_CPU_LOONGSON1B
1553 config SYS_HAS_CPU_MIPS32_R1
1556 config SYS_HAS_CPU_MIPS32_R2
1559 config SYS_HAS_CPU_MIPS64_R1
1562 config SYS_HAS_CPU_MIPS64_R2
1565 config SYS_HAS_CPU_R3000
1568 config SYS_HAS_CPU_TX39XX
1571 config SYS_HAS_CPU_VR41XX
1574 config SYS_HAS_CPU_R4300
1577 config SYS_HAS_CPU_R4X00
1580 config SYS_HAS_CPU_TX49XX
1583 config SYS_HAS_CPU_R5000
1586 config SYS_HAS_CPU_R5432
1589 config SYS_HAS_CPU_R5500
1592 config SYS_HAS_CPU_R6000
1595 config SYS_HAS_CPU_NEVADA
1598 config SYS_HAS_CPU_R8000
1601 config SYS_HAS_CPU_R10000
1604 config SYS_HAS_CPU_RM7000
1607 config SYS_HAS_CPU_SB1
1610 config SYS_HAS_CPU_CAVIUM_OCTEON
1613 config SYS_HAS_CPU_BMIPS3300
1616 config SYS_HAS_CPU_BMIPS4350
1619 config SYS_HAS_CPU_BMIPS4380
1622 config SYS_HAS_CPU_BMIPS5000
1625 config SYS_HAS_CPU_XLR
1628 config SYS_HAS_CPU_XLP
1632 # CPU may reorder R->R, R->W, W->R, W->W
1633 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1635 config WEAK_ORDERING
1639 # CPU may reorder reads and writes beyond LL/SC
1640 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1642 config WEAK_REORDERING_BEYOND_LLSC
1647 # These two indicate any level of the MIPS32 and MIPS64 architecture
1651 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1655 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1658 # These two indicate the revision of the architecture, either Release 1 or Release 2
1662 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1666 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1668 config SYS_SUPPORTS_32BIT_KERNEL
1670 config SYS_SUPPORTS_64BIT_KERNEL
1672 config CPU_SUPPORTS_32BIT_KERNEL
1674 config CPU_SUPPORTS_64BIT_KERNEL
1676 config CPU_SUPPORTS_CPUFREQ
1678 config CPU_SUPPORTS_ADDRWINCFG
1680 config CPU_SUPPORTS_HUGEPAGES
1682 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1684 config MIPS_PGD_C0_CONTEXT
1686 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1689 # Set to y for ptrace access to watch registers.
1691 config HARDWARE_WATCHPOINTS
1693 default y if CPU_MIPSR1 || CPU_MIPSR2
1698 prompt "Kernel code model"
1700 You should only select this option if you have a workload that
1701 actually benefits from 64-bit processing or if your machine has
1702 large memory. You will only be presented a single option in this
1703 menu if your system does not support both 32-bit and 64-bit kernels.
1706 bool "32-bit kernel"
1707 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1710 Select this option if you want to build a 32-bit kernel.
1712 bool "64-bit kernel"
1713 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1715 Select this option if you want to build a 64-bit kernel.
1720 bool "KVM Guest Kernel"
1722 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1724 config KVM_HOST_FREQ
1725 int "KVM Host Processor Frequency (MHz)"
1726 depends on KVM_GUEST
1729 Select this option if building a guest kernel for KVM to skip
1730 RTC emulation when determining guest CPU Frequency. Instead, the guest
1731 processor frequency is automatically derived from the host frequency.
1734 prompt "Kernel page size"
1735 default PAGE_SIZE_4KB
1737 config PAGE_SIZE_4KB
1739 depends on !CPU_LOONGSON2
1741 This option select the standard 4kB Linux page size. On some
1742 R3000-family processors this is the only available page size. Using
1743 4kB page size will minimize memory consumption and is therefore
1744 recommended for low memory systems.
1746 config PAGE_SIZE_8KB
1748 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1750 Using 8kB page size will result in higher performance kernel at
1751 the price of higher memory consumption. This option is available
1752 only on R8000 and cnMIPS processors. Note that you will need a
1753 suitable Linux distribution to support this.
1755 config PAGE_SIZE_16KB
1757 depends on !CPU_R3000 && !CPU_TX39XX
1759 Using 16kB page size will result in higher performance kernel at
1760 the price of higher memory consumption. This option is available on
1761 all non-R3000 family processors. Note that you will need a suitable
1762 Linux distribution to support this.
1764 config PAGE_SIZE_32KB
1766 depends on CPU_CAVIUM_OCTEON
1768 Using 32kB page size will result in higher performance kernel at
1769 the price of higher memory consumption. This option is available
1770 only on cnMIPS cores. Note that you will need a suitable Linux
1771 distribution to support this.
1773 config PAGE_SIZE_64KB
1775 depends on !CPU_R3000 && !CPU_TX39XX
1777 Using 64kB page size will result in higher performance kernel at
1778 the price of higher memory consumption. This option is available on
1779 all non-R3000 family processor. Not that at the time of this
1780 writing this option is still high experimental.
1784 config FORCE_MAX_ZONEORDER
1785 int "Maximum zone order"
1786 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1787 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1788 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1789 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1790 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1791 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1795 The kernel memory allocator divides physically contiguous memory
1796 blocks into "zones", where each zone is a power of two number of
1797 pages. This option selects the largest power of two that the kernel
1798 keeps in the memory allocator. If you need to allocate very large
1799 blocks of physically contiguous memory, then you may need to
1800 increase this value.
1802 This config option is actually maximum order plus one. For example,
1803 a value of 11 means that the largest free memory block is 2^10 pages.
1805 The page size is not necessarily 4KB. Keep this in mind
1806 when choosing a value for this option.
1809 bool "Use GIC global counter for clock events"
1810 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1812 Use the GIC global counter for the clock events. The R4K clock
1813 event driver is always present, so if the platform ends up not
1814 detecting a GIC, it will fall back to the R4K timer for the
1815 generation of clock events.
1820 config IP22_CPU_SCACHE
1825 # Support for a MIPS32 / MIPS64 style S-caches
1827 config MIPS_CPU_SCACHE
1831 config R5000_CPU_SCACHE
1835 config RM7000_CPU_SCACHE
1839 config SIBYTE_DMA_PAGEOPS
1840 bool "Use DMA to clear/copy pages"
1843 Instead of using the CPU to zero and copy pages, use a Data Mover
1844 channel. These DMA channels are otherwise unused by the standard
1845 SiByte Linux port. Seems to give a small performance benefit.
1847 config CPU_HAS_PREFETCH
1850 config CPU_GENERIC_DUMP_TLB
1852 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1856 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1858 config CPU_R4K_CACHE_TLB
1860 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1863 prompt "MIPS MT options"
1865 config MIPS_MT_DISABLED
1866 bool "Disable multithreading support."
1868 Use this option if your workload can't take advantage of
1869 MIPS hardware multithreading support. On systems that don't have
1870 the option of an MT-enabled processor this option will be the only
1871 option in this menu.
1874 bool "Use 1 TC on each available VPE for SMP"
1875 depends on SYS_SUPPORTS_MULTITHREADING
1876 select CPU_MIPSR2_IRQ_VI
1877 select CPU_MIPSR2_IRQ_EI
1879 select NR_CPUS_DEFAULT_2
1881 select SYS_SUPPORTS_SCHED_SMT if SMP
1882 select SYS_SUPPORTS_SMP
1884 select MIPS_PERF_SHARED_TC_COUNTERS
1886 This is a kernel model which is known a VSMP but lately has been
1887 marketesed into SMVP.
1888 Virtual SMP uses the processor's VPEs to implement virtual
1889 processors. In currently available configuration of the 34K processor
1890 this allows for a dual processor. Both processors will share the same
1891 primary caches; each will obtain the half of the TLB for it's own
1892 exclusive use. For a layman this model can be described as similar to
1893 what Intel calls Hyperthreading.
1895 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1898 bool "SMTC: Use all TCs on all VPEs for SMP"
1899 depends on CPU_MIPS32_R2
1900 #depends on CPU_MIPS64_R2 # once there is hardware ...
1901 depends on SYS_SUPPORTS_MULTITHREADING
1902 select CPU_MIPSR2_IRQ_VI
1903 select CPU_MIPSR2_IRQ_EI
1905 select NR_CPUS_DEFAULT_8
1907 select SYS_SUPPORTS_SMP
1910 This is a kernel model which is known a SMTC or lately has been
1911 marketesed into SMVP.
1912 is presenting the available TC's of the core as processors to Linux.
1913 On currently available 34K processors this means a Linux system will
1914 see up to 5 processors. The implementation of the SMTC kernel differs
1915 significantly from VSMP and cannot efficiently coexist in the same
1916 kernel binary so the choice between VSMP and SMTC is a compile time
1919 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1927 bool "SMT (multithreading) scheduler support"
1928 depends on SYS_SUPPORTS_SCHED_SMT
1931 SMT scheduler support improves the CPU scheduler's decision making
1932 when dealing with MIPS MT enabled cores at a cost of slightly
1933 increased overhead in some places. If unsure say N here.
1935 config SYS_SUPPORTS_SCHED_SMT
1938 config SYS_SUPPORTS_MULTITHREADING
1941 config MIPS_MT_FPAFF
1942 bool "Dynamic FPU affinity for FP-intensive threads"
1944 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1946 config MIPS_VPE_LOADER
1947 bool "VPE loader support."
1948 depends on SYS_SUPPORTS_MULTITHREADING
1949 select CPU_MIPSR2_IRQ_VI
1950 select CPU_MIPSR2_IRQ_EI
1953 Includes a loader for loading an elf relocatable object
1954 onto another VPE and running it.
1956 config MIPS_MT_SMTC_IM_BACKSTOP
1957 bool "Use per-TC register bits as backstop for inhibited IM bits"
1958 depends on MIPS_MT_SMTC
1961 To support multiple TC microthreads acting as "CPUs" within
1962 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1963 during interrupt handling. To support legacy drivers and interrupt
1964 controller management code, SMTC has a "backstop" to track and
1965 if necessary restore the interrupt mask. This has some performance
1966 impact on interrupt service overhead.
1968 config MIPS_MT_SMTC_IRQAFF
1969 bool "Support IRQ affinity API"
1970 depends on MIPS_MT_SMTC
1973 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1974 for SMTC Linux kernel. Requires platform support, of which
1975 an example can be found in the MIPS kernel i8259 and Malta
1976 platform code. Adds some overhead to interrupt dispatch, and
1977 should be used only if you know what you are doing.
1979 config MIPS_VPE_LOADER_TOM
1980 bool "Load VPE program into memory hidden from linux"
1981 depends on MIPS_VPE_LOADER
1984 The loader can use memory that is present but has been hidden from
1985 Linux using the kernel command line option "mem=xxMB". It's up to
1986 you to ensure the amount you put in the option and the space your
1987 program requires is less or equal to the amount physically present.
1989 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1990 config MIPS_VPE_APSP_API
1991 bool "Enable support for AP/SP API (RTLX)"
1992 depends on MIPS_VPE_LOADER
1996 bool "MIPS CMP framework support"
1997 depends on SYS_SUPPORTS_MIPS_CMP
1999 select SYS_SUPPORTS_SMP
2000 select SYS_SUPPORTS_SCHED_SMT if SMP
2001 select WEAK_ORDERING
2004 This is a placeholder option for the GCMP work. It will need to
2005 be handled differently...
2007 config SB1_PASS_1_WORKAROUNDS
2009 depends on CPU_SB1_PASS_1
2012 config SB1_PASS_2_WORKAROUNDS
2014 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2017 config SB1_PASS_2_1_WORKAROUNDS
2019 depends on CPU_SB1 && CPU_SB1_PASS_2
2023 config 64BIT_PHYS_ADDR
2026 config ARCH_PHYS_ADDR_T_64BIT
2027 def_bool 64BIT_PHYS_ADDR
2029 config CPU_HAS_SMARTMIPS
2030 depends on SYS_SUPPORTS_SMARTMIPS
2031 bool "Support for the SmartMIPS ASE"
2033 SmartMIPS is a extension of the MIPS32 architecture aimed at
2034 increased security at both hardware and software level for
2035 smartcards. Enabling this option will allow proper use of the
2036 SmartMIPS instructions by Linux applications. However a kernel with
2037 this option will not work on a MIPS core without SmartMIPS core. If
2038 you don't know you probably don't have SmartMIPS and should say N
2041 config CPU_MICROMIPS
2042 depends on SYS_SUPPORTS_MICROMIPS
2043 bool "Build kernel using microMIPS ISA"
2045 When this option is enabled the kernel will be built using the
2055 # Vectored interrupt mode is an R2 feature
2057 config CPU_MIPSR2_IRQ_VI
2061 # Extended interrupt mode is an R2 feature
2063 config CPU_MIPSR2_IRQ_EI
2068 depends on !CPU_R3000
2074 config CPU_DADDI_WORKAROUNDS
2077 config CPU_R4000_WORKAROUNDS
2079 select CPU_R4400_WORKAROUNDS
2081 config CPU_R4400_WORKAROUNDS
2085 # - Highmem only makes sense for the 32-bit kernel.
2086 # - The current highmem code will only work properly on physically indexed
2087 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2088 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2089 # moment we protect the user and offer the highmem option only on machines
2090 # where it's known to be safe. This will not offer highmem on a few systems
2091 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2092 # indexed CPUs but we're playing safe.
2093 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2094 # know they might have memory configurations that could make use of highmem
2098 bool "High Memory Support"
2099 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2101 config CPU_SUPPORTS_HIGHMEM
2104 config SYS_SUPPORTS_HIGHMEM
2107 config SYS_SUPPORTS_SMARTMIPS
2110 config SYS_SUPPORTS_MICROMIPS
2113 config ARCH_FLATMEM_ENABLE
2115 depends on !NUMA && !CPU_LOONGSON2
2117 config ARCH_DISCONTIGMEM_ENABLE
2119 default y if SGI_IP27
2121 Say Y to support efficient handling of discontiguous physical memory,
2122 for architectures which are either NUMA (Non-Uniform Memory Access)
2123 or have huge holes in the physical address space for other reasons.
2124 See <file:Documentation/vm/numa> for more.
2126 config ARCH_SPARSEMEM_ENABLE
2128 select SPARSEMEM_STATIC
2132 depends on SYS_SUPPORTS_NUMA
2134 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2135 Access). This option improves performance on systems with more
2136 than two nodes; on two node systems it is generally better to
2137 leave it disabled; on single node systems disable this option
2140 config SYS_SUPPORTS_NUMA
2146 depends on NEED_MULTIPLE_NODES
2148 config HW_PERF_EVENTS
2149 bool "Enable hardware performance counter support for perf events"
2150 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2153 Enable hardware performance counter support for perf events. If
2154 disabled, perf events will use software events only.
2159 bool "Multi-Processing support"
2160 depends on SYS_SUPPORTS_SMP
2161 select USE_GENERIC_SMP_HELPERS
2163 This enables support for systems with more than one CPU. If you have
2164 a system with only one CPU, like most personal computers, say N. If
2165 you have a system with more than one CPU, say Y.
2167 If you say N here, the kernel will run on single and multiprocessor
2168 machines, but will use only one CPU of a multiprocessor machine. If
2169 you say Y here, the kernel will run on many, but not all,
2170 singleprocessor machines. On a singleprocessor machine, the kernel
2171 will run faster if you say N here.
2173 People using multiprocessor machines who say Y here should also say
2174 Y to "Enhanced Real Time Clock Support", below.
2176 See also the SMP-HOWTO available at
2177 <http://www.tldp.org/docs.html#howto>.
2179 If you don't know what to do here, say N.
2184 config SYS_SUPPORTS_MIPS_CMP
2187 config SYS_SUPPORTS_SMP
2190 config NR_CPUS_DEFAULT_1
2193 config NR_CPUS_DEFAULT_2
2196 config NR_CPUS_DEFAULT_4
2199 config NR_CPUS_DEFAULT_8
2202 config NR_CPUS_DEFAULT_16
2205 config NR_CPUS_DEFAULT_32
2208 config NR_CPUS_DEFAULT_64
2212 int "Maximum number of CPUs (2-64)"
2213 range 1 64 if NR_CPUS_DEFAULT_1
2215 default "1" if NR_CPUS_DEFAULT_1
2216 default "2" if NR_CPUS_DEFAULT_2
2217 default "4" if NR_CPUS_DEFAULT_4
2218 default "8" if NR_CPUS_DEFAULT_8
2219 default "16" if NR_CPUS_DEFAULT_16
2220 default "32" if NR_CPUS_DEFAULT_32
2221 default "64" if NR_CPUS_DEFAULT_64
2223 This allows you to specify the maximum number of CPUs which this
2224 kernel will support. The maximum supported value is 32 for 32-bit
2225 kernel and 64 for 64-bit kernels; the minimum value which makes
2226 sense is 1 for Qemu (useful only for kernel debugging purposes)
2227 and 2 for all others.
2229 This is purely to save memory - each supported CPU adds
2230 approximately eight kilobytes to the kernel image. For best
2231 performance should round up your number of processors to the next
2234 config MIPS_PERF_SHARED_TC_COUNTERS
2238 # Timer Interrupt Frequency Configuration
2242 prompt "Timer frequency"
2245 Allows the configuration of the timer frequency.
2248 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2251 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2254 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2263 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2266 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2270 config SYS_SUPPORTS_48HZ
2273 config SYS_SUPPORTS_100HZ
2276 config SYS_SUPPORTS_128HZ
2279 config SYS_SUPPORTS_250HZ
2282 config SYS_SUPPORTS_256HZ
2285 config SYS_SUPPORTS_1000HZ
2288 config SYS_SUPPORTS_1024HZ
2291 config SYS_SUPPORTS_ARBIT_HZ
2293 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2294 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2295 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2296 !SYS_SUPPORTS_1024HZ
2301 default 100 if HZ_100
2302 default 128 if HZ_128
2303 default 250 if HZ_250
2304 default 256 if HZ_256
2305 default 1000 if HZ_1000
2306 default 1024 if HZ_1024
2308 source "kernel/Kconfig.preempt"
2311 bool "Kexec system call"
2313 kexec is a system call that implements the ability to shutdown your
2314 current kernel, and to start another kernel. It is like a reboot
2315 but it is independent of the system firmware. And like a reboot
2316 you can start any kernel with it, not just Linux.
2318 The name comes from the similarity to the exec system call.
2320 It is an ongoing process to be certain the hardware in a machine
2321 is properly shutdown, so do not be surprised if this code does not
2322 initially work for you. It may help to enable device hotplugging
2323 support. As of this writing the exact hardware interface is
2324 strongly in flux, so no good recommendation can be made.
2327 bool "Kernel crash dumps"
2329 Generate crash dump after being started by kexec.
2330 This should be normally only set in special crash dump kernels
2331 which are loaded in the main kernel with kexec-tools into
2332 a specially reserved region and then later executed after
2333 a crash by kdump/kexec. The crash dump kernel must be compiled
2334 to a memory address not used by the main kernel or firmware using
2337 config PHYSICAL_START
2338 hex "Physical address where the kernel is loaded"
2339 default "0xffffffff84000000" if 64BIT
2340 default "0x84000000" if 32BIT
2341 depends on CRASH_DUMP
2343 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2344 If you plan to use kernel for capturing the crash dump change
2345 this value to start of the reserved region (the "X" value as
2346 specified in the "crashkernel=YM@XM" command line boot parameter
2347 passed to the panic-ed kernel).
2350 bool "Enable seccomp to safely compute untrusted bytecode"
2354 This kernel feature is useful for number crunching applications
2355 that may need to compute untrusted bytecode during their
2356 execution. By using pipes or other transports made available to
2357 the process as file descriptors supporting the read/write
2358 syscalls, it's possible to isolate those applications in
2359 their own address space using seccomp. Once seccomp is
2360 enabled via /proc/<pid>/seccomp, it cannot be disabled
2361 and the task is only allowed to execute a few safe syscalls
2362 defined by each seccomp mode.
2364 If unsure, say Y. Only embedded should say N here.
2369 select OF_EARLY_FLATTREE
2374 config LOCKDEP_SUPPORT
2378 config STACKTRACE_SUPPORT
2382 source "init/Kconfig"
2384 source "kernel/Kconfig.freezer"
2386 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2394 bool "Support for PCI controller"
2395 depends on HW_HAS_PCI
2397 select GENERIC_PCI_IOMAP
2398 select NO_GENERIC_PCI_IOPORT_MAP
2400 Find out whether you have a PCI motherboard. PCI is the name of a
2401 bus system, i.e. the way the CPU talks to the other stuff inside
2402 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2408 source "drivers/pci/Kconfig"
2410 source "drivers/pci/pcie/Kconfig"
2413 # ISA support is now enabled via select. Too many systems still have the one
2414 # or other ISA chip on the board that users don't know about so don't expect
2415 # users to choose the right thing ...
2422 depends on HW_HAS_EISA
2424 select GENERIC_ISA_DMA
2426 The Extended Industry Standard Architecture (EISA) bus was
2427 developed as an open alternative to the IBM MicroChannel bus.
2429 The EISA bus provided some of the features of the IBM MicroChannel
2430 bus while maintaining backward compatibility with cards made for
2431 the older ISA bus. The EISA bus saw limited use between 1988 and
2432 1995 when it was made obsolete by the PCI bus.
2434 Say Y here if you are building a kernel for an EISA-based machine.
2438 source "drivers/eisa/Kconfig"
2441 bool "TURBOchannel support"
2442 depends on MACH_DECSTATION
2444 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2445 processors. TURBOchannel programming specifications are available
2447 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2449 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2450 Linux driver support status is documented at:
2451 <http://www.linux-mips.org/wiki/DECstation>
2461 select MIPS_EXTERNAL_TIMER
2469 source "drivers/pcmcia/Kconfig"
2471 source "drivers/pci/hotplug/Kconfig"
2474 bool "RapidIO support"
2478 If you say Y here, the kernel will include drivers and
2479 infrastructure code to support RapidIO interconnect devices.
2481 source "drivers/rapidio/Kconfig"
2485 menu "Executable file formats"
2487 source "fs/Kconfig.binfmt"
2492 config MIPS32_COMPAT
2493 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2496 Select this option if you want Linux/MIPS 32-bit binary
2497 compatibility. Since all software available for Linux/MIPS is
2498 currently 32-bit you should say Y here.
2502 depends on MIPS32_COMPAT
2503 select ARCH_WANT_OLD_COMPAT_IPC
2506 config SYSVIPC_COMPAT
2508 depends on COMPAT && SYSVIPC
2512 bool "Kernel support for o32 binaries"
2513 depends on MIPS32_COMPAT
2515 Select this option if you want to run o32 binaries. These are pure
2516 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2517 existing binaries are in this format.
2522 bool "Kernel support for n32 binaries"
2523 depends on MIPS32_COMPAT
2525 Select this option if you want to run n32 binaries. These are
2526 64-bit binaries using 32-bit quantities for addressing and certain
2527 data that would normally be 64-bit. They are used in special
2534 default y if MIPS32_O32 || MIPS32_N32
2538 menu "Power management options"
2540 config ARCH_HIBERNATION_POSSIBLE
2542 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2544 config ARCH_SUSPEND_POSSIBLE
2546 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2548 source "kernel/power/Kconfig"
2552 config MIPS_EXTERNAL_TIMER
2555 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2556 menu "CPU Power Management"
2557 source "drivers/cpufreq/Kconfig"
2561 source "net/Kconfig"
2563 source "drivers/Kconfig"
2565 source "drivers/firmware/Kconfig"
2569 source "arch/mips/Kconfig.debug"
2571 source "security/Kconfig"
2573 source "crypto/Kconfig"
2575 source "lib/Kconfig"
2577 source "arch/mips/kvm/Kconfig"