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
1023 config SYS_SUPPORTS_APM_EMULATION
1026 config SYS_SUPPORTS_BIG_ENDIAN
1029 config SYS_SUPPORTS_LITTLE_ENDIAN
1032 config SYS_SUPPORTS_HUGETLBFS
1034 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1037 config MIPS_HUGE_TLB_SUPPORT
1038 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1061 config PCI_GT64XXX_PCI0
1064 config NO_EXCEPT_FILL
1071 select DMA_NONCOHERENT
1073 select SWAP_IO_SPACE
1074 select SYS_HAS_CPU_R5500
1075 select SYS_SUPPORTS_32BIT_KERNEL
1076 select SYS_SUPPORTS_64BIT_KERNEL
1077 select SYS_SUPPORTS_BIG_ENDIAN
1084 select DMA_NONCOHERENT
1085 select SYS_HAS_CPU_MIPS32_R2
1086 select SYS_SUPPORTS_32BIT_KERNEL
1087 select SYS_SUPPORTS_LITTLE_ENDIAN
1088 select SYS_SUPPORTS_BIG_ENDIAN
1089 select CPU_MIPSR2_IRQ_VI
1095 config SWAP_IO_SPACE
1098 config SGI_HAS_INDYDOG
1110 config SGI_HAS_ZILOG
1113 config SGI_HAS_I8042
1116 config DEFAULT_SGI_PARTITION
1128 config MIPS_L1_CACHE_SHIFT
1130 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1131 default "6" if MIPS_CPU_SCACHE
1132 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1135 config HAVE_STD_PC_SERIAL_PORT
1139 bool "ARC console support"
1140 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1144 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1149 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1158 menu "CPU selection"
1164 config CPU_LOONGSON2E
1166 depends on SYS_HAS_CPU_LOONGSON2E
1167 select CPU_LOONGSON2
1169 The Loongson 2E processor implements the MIPS III instruction set
1170 with many extensions.
1172 It has an internal FPGA northbridge, which is compatible to
1175 config CPU_LOONGSON2F
1177 depends on SYS_HAS_CPU_LOONGSON2F
1178 select CPU_LOONGSON2
1179 select ARCH_REQUIRE_GPIOLIB
1181 The Loongson 2F processor implements the MIPS III instruction set
1182 with many extensions.
1184 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1185 have a similar programming interface with FPGA northbridge used in
1188 config CPU_LOONGSON1B
1190 depends on SYS_HAS_CPU_LOONGSON1B
1191 select CPU_LOONGSON1
1193 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1194 release 2 instruction set.
1196 config CPU_MIPS32_R1
1197 bool "MIPS32 Release 1"
1198 depends on SYS_HAS_CPU_MIPS32_R1
1199 select CPU_HAS_PREFETCH
1200 select CPU_SUPPORTS_32BIT_KERNEL
1201 select CPU_SUPPORTS_HIGHMEM
1203 Choose this option to build a kernel for release 1 or later of the
1204 MIPS32 architecture. Most modern embedded systems with a 32-bit
1205 MIPS processor are based on a MIPS32 processor. If you know the
1206 specific type of processor in your system, choose those that one
1207 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1208 Release 2 of the MIPS32 architecture is available since several
1209 years so chances are you even have a MIPS32 Release 2 processor
1210 in which case you should choose CPU_MIPS32_R2 instead for better
1213 config CPU_MIPS32_R2
1214 bool "MIPS32 Release 2"
1215 depends on SYS_HAS_CPU_MIPS32_R2
1216 select CPU_HAS_PREFETCH
1217 select CPU_SUPPORTS_32BIT_KERNEL
1218 select CPU_SUPPORTS_HIGHMEM
1221 Choose this option to build a kernel for release 2 or later of the
1222 MIPS32 architecture. Most modern embedded systems with a 32-bit
1223 MIPS processor are based on a MIPS32 processor. If you know the
1224 specific type of processor in your system, choose those that one
1225 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1227 config CPU_MIPS64_R1
1228 bool "MIPS64 Release 1"
1229 depends on SYS_HAS_CPU_MIPS64_R1
1230 select CPU_HAS_PREFETCH
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_64BIT_KERNEL
1233 select CPU_SUPPORTS_HIGHMEM
1234 select CPU_SUPPORTS_HUGEPAGES
1236 Choose this option to build a kernel for release 1 or later of the
1237 MIPS64 architecture. Many modern embedded systems with a 64-bit
1238 MIPS processor are based on a MIPS64 processor. If you know the
1239 specific type of processor in your system, choose those that one
1240 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1241 Release 2 of the MIPS64 architecture is available since several
1242 years so chances are you even have a MIPS64 Release 2 processor
1243 in which case you should choose CPU_MIPS64_R2 instead for better
1246 config CPU_MIPS64_R2
1247 bool "MIPS64 Release 2"
1248 depends on SYS_HAS_CPU_MIPS64_R2
1249 select CPU_HAS_PREFETCH
1250 select CPU_SUPPORTS_32BIT_KERNEL
1251 select CPU_SUPPORTS_64BIT_KERNEL
1252 select CPU_SUPPORTS_HIGHMEM
1253 select CPU_SUPPORTS_HUGEPAGES
1255 Choose this option to build a kernel for release 2 or later of the
1256 MIPS64 architecture. Many modern embedded systems with a 64-bit
1257 MIPS processor are based on a MIPS64 processor. If you know the
1258 specific type of processor in your system, choose those that one
1259 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1263 depends on SYS_HAS_CPU_R3000
1265 select CPU_SUPPORTS_32BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1268 Please make sure to pick the right CPU type. Linux/MIPS is not
1269 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1270 *not* work on R4000 machines and vice versa. However, since most
1271 of the supported machines have an R4000 (or similar) CPU, R4x00
1272 might be a safe bet. If the resulting kernel does not work,
1273 try to recompile with R3000.
1277 depends on SYS_HAS_CPU_TX39XX
1278 select CPU_SUPPORTS_32BIT_KERNEL
1282 depends on SYS_HAS_CPU_VR41XX
1283 select CPU_SUPPORTS_32BIT_KERNEL
1284 select CPU_SUPPORTS_64BIT_KERNEL
1286 The options selects support for the NEC VR4100 series of processors.
1287 Only choose this option if you have one of these processors as a
1288 kernel built with this option will not run on any other type of
1289 processor or vice versa.
1293 depends on SYS_HAS_CPU_R4300
1294 select CPU_SUPPORTS_32BIT_KERNEL
1295 select CPU_SUPPORTS_64BIT_KERNEL
1297 MIPS Technologies R4300-series processors.
1301 depends on SYS_HAS_CPU_R4X00
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303 select CPU_SUPPORTS_64BIT_KERNEL
1304 select CPU_SUPPORTS_HUGEPAGES
1306 MIPS Technologies R4000-series processors other than 4300, including
1307 the R4000, R4400, R4600, and 4700.
1311 depends on SYS_HAS_CPU_TX49XX
1312 select CPU_HAS_PREFETCH
1313 select CPU_SUPPORTS_32BIT_KERNEL
1314 select CPU_SUPPORTS_64BIT_KERNEL
1315 select CPU_SUPPORTS_HUGEPAGES
1319 depends on SYS_HAS_CPU_R5000
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1324 MIPS Technologies R5000-series processors other than the Nevada.
1328 depends on SYS_HAS_CPU_R5432
1329 select CPU_SUPPORTS_32BIT_KERNEL
1330 select CPU_SUPPORTS_64BIT_KERNEL
1331 select CPU_SUPPORTS_HUGEPAGES
1335 depends on SYS_HAS_CPU_R5500
1336 select CPU_SUPPORTS_32BIT_KERNEL
1337 select CPU_SUPPORTS_64BIT_KERNEL
1338 select CPU_SUPPORTS_HUGEPAGES
1340 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1345 depends on SYS_HAS_CPU_R6000
1346 select CPU_SUPPORTS_32BIT_KERNEL
1348 MIPS Technologies R6000 and R6000A series processors. Note these
1349 processors are extremely rare and the support for them is incomplete.
1353 depends on SYS_HAS_CPU_NEVADA
1354 select CPU_SUPPORTS_32BIT_KERNEL
1355 select CPU_SUPPORTS_64BIT_KERNEL
1356 select CPU_SUPPORTS_HUGEPAGES
1358 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1362 depends on SYS_HAS_CPU_R8000
1363 select CPU_HAS_PREFETCH
1364 select CPU_SUPPORTS_64BIT_KERNEL
1366 MIPS Technologies R8000 processors. Note these processors are
1367 uncommon and the support for them is incomplete.
1371 depends on SYS_HAS_CPU_R10000
1372 select CPU_HAS_PREFETCH
1373 select CPU_SUPPORTS_32BIT_KERNEL
1374 select CPU_SUPPORTS_64BIT_KERNEL
1375 select CPU_SUPPORTS_HIGHMEM
1376 select CPU_SUPPORTS_HUGEPAGES
1378 MIPS Technologies R10000-series processors.
1382 depends on SYS_HAS_CPU_RM7000
1383 select CPU_HAS_PREFETCH
1384 select CPU_SUPPORTS_32BIT_KERNEL
1385 select CPU_SUPPORTS_64BIT_KERNEL
1386 select CPU_SUPPORTS_HIGHMEM
1387 select CPU_SUPPORTS_HUGEPAGES
1391 depends on SYS_HAS_CPU_SB1
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HIGHMEM
1395 select CPU_SUPPORTS_HUGEPAGES
1396 select WEAK_ORDERING
1398 config CPU_CAVIUM_OCTEON
1399 bool "Cavium Octeon processor"
1400 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1401 select ARCH_SPARSEMEM_ENABLE
1402 select CPU_HAS_PREFETCH
1403 select CPU_SUPPORTS_64BIT_KERNEL
1404 select SYS_SUPPORTS_SMP
1405 select NR_CPUS_DEFAULT_16
1406 select WEAK_ORDERING
1407 select CPU_SUPPORTS_HIGHMEM
1408 select CPU_SUPPORTS_HUGEPAGES
1411 select USB_EHCI_BIG_ENDIAN_MMIO
1413 The Cavium Octeon processor is a highly integrated chip containing
1414 many ethernet hardware widgets for networking tasks. The processor
1415 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1416 Full details can be found at http://www.caviumnetworks.com.
1418 config CPU_BMIPS3300
1420 depends on SYS_HAS_CPU_BMIPS3300
1423 Broadcom BMIPS3300 processors.
1425 config CPU_BMIPS4350
1427 depends on SYS_HAS_CPU_BMIPS4350
1429 select SYS_SUPPORTS_SMP
1430 select SYS_SUPPORTS_HOTPLUG_CPU
1432 Broadcom BMIPS4350 ("VIPER") processors.
1434 config CPU_BMIPS4380
1436 depends on SYS_HAS_CPU_BMIPS4380
1438 select SYS_SUPPORTS_SMP
1439 select SYS_SUPPORTS_HOTPLUG_CPU
1441 Broadcom BMIPS4380 processors.
1443 config CPU_BMIPS5000
1445 depends on SYS_HAS_CPU_BMIPS5000
1447 select CPU_SUPPORTS_HIGHMEM
1448 select MIPS_CPU_SCACHE
1449 select SYS_SUPPORTS_SMP
1450 select SYS_SUPPORTS_HOTPLUG_CPU
1452 Broadcom BMIPS5000 processors.
1455 bool "Netlogic XLR SoC"
1456 depends on SYS_HAS_CPU_XLR
1457 select CPU_SUPPORTS_32BIT_KERNEL
1458 select CPU_SUPPORTS_64BIT_KERNEL
1459 select CPU_SUPPORTS_HIGHMEM
1460 select CPU_SUPPORTS_HUGEPAGES
1461 select WEAK_ORDERING
1462 select WEAK_REORDERING_BEYOND_LLSC
1464 Netlogic Microsystems XLR/XLS processors.
1467 bool "Netlogic XLP SoC"
1468 depends on SYS_HAS_CPU_XLP
1469 select CPU_SUPPORTS_32BIT_KERNEL
1470 select CPU_SUPPORTS_64BIT_KERNEL
1471 select CPU_SUPPORTS_HIGHMEM
1472 select WEAK_ORDERING
1473 select WEAK_REORDERING_BEYOND_LLSC
1474 select CPU_HAS_PREFETCH
1477 Netlogic Microsystems XLP processors.
1481 config CPU_NOP_WORKAROUNDS
1484 config CPU_JUMP_WORKAROUNDS
1487 config CPU_LOONGSON2F_WORKAROUNDS
1488 bool "Loongson 2F Workarounds"
1490 select CPU_NOP_WORKAROUNDS
1491 select CPU_JUMP_WORKAROUNDS
1493 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1494 require workarounds. Without workarounds the system may hang
1495 unexpectedly. For more information please refer to the gas
1496 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1498 Loongson 2F03 and later have fixed these issues and no workarounds
1499 are needed. The workarounds have no significant side effect on them
1500 but may decrease the performance of the system so this option should
1501 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1504 If unsure, please say Y.
1505 endif # CPU_LOONGSON2F
1507 config SYS_SUPPORTS_ZBOOT
1509 select HAVE_KERNEL_GZIP
1510 select HAVE_KERNEL_BZIP2
1511 select HAVE_KERNEL_LZMA
1512 select HAVE_KERNEL_LZO
1514 config SYS_SUPPORTS_ZBOOT_UART16550
1516 select SYS_SUPPORTS_ZBOOT
1518 config CPU_LOONGSON2
1520 select CPU_SUPPORTS_32BIT_KERNEL
1521 select CPU_SUPPORTS_64BIT_KERNEL
1522 select CPU_SUPPORTS_HIGHMEM
1523 select CPU_SUPPORTS_HUGEPAGES
1525 config CPU_LOONGSON1
1529 select CPU_HAS_PREFETCH
1530 select CPU_SUPPORTS_32BIT_KERNEL
1531 select CPU_SUPPORTS_HIGHMEM
1536 select CPU_SUPPORTS_32BIT_KERNEL
1537 select DMA_NONCOHERENT
1539 select SWAP_IO_SPACE
1540 select WEAK_ORDERING
1542 config SYS_HAS_CPU_LOONGSON2E
1545 config SYS_HAS_CPU_LOONGSON2F
1547 select CPU_SUPPORTS_CPUFREQ
1548 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1549 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1551 config SYS_HAS_CPU_LOONGSON1B
1554 config SYS_HAS_CPU_MIPS32_R1
1557 config SYS_HAS_CPU_MIPS32_R2
1560 config SYS_HAS_CPU_MIPS64_R1
1563 config SYS_HAS_CPU_MIPS64_R2
1566 config SYS_HAS_CPU_R3000
1569 config SYS_HAS_CPU_TX39XX
1572 config SYS_HAS_CPU_VR41XX
1575 config SYS_HAS_CPU_R4300
1578 config SYS_HAS_CPU_R4X00
1581 config SYS_HAS_CPU_TX49XX
1584 config SYS_HAS_CPU_R5000
1587 config SYS_HAS_CPU_R5432
1590 config SYS_HAS_CPU_R5500
1593 config SYS_HAS_CPU_R6000
1596 config SYS_HAS_CPU_NEVADA
1599 config SYS_HAS_CPU_R8000
1602 config SYS_HAS_CPU_R10000
1605 config SYS_HAS_CPU_RM7000
1608 config SYS_HAS_CPU_SB1
1611 config SYS_HAS_CPU_CAVIUM_OCTEON
1614 config SYS_HAS_CPU_BMIPS3300
1617 config SYS_HAS_CPU_BMIPS4350
1620 config SYS_HAS_CPU_BMIPS4380
1623 config SYS_HAS_CPU_BMIPS5000
1626 config SYS_HAS_CPU_XLR
1629 config SYS_HAS_CPU_XLP
1633 # CPU may reorder R->R, R->W, W->R, W->W
1634 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1636 config WEAK_ORDERING
1640 # CPU may reorder reads and writes beyond LL/SC
1641 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1643 config WEAK_REORDERING_BEYOND_LLSC
1648 # These two indicate any level of the MIPS32 and MIPS64 architecture
1652 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1656 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1659 # These two indicate the revision of the architecture, either Release 1 or Release 2
1663 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1667 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1669 config SYS_SUPPORTS_32BIT_KERNEL
1671 config SYS_SUPPORTS_64BIT_KERNEL
1673 config CPU_SUPPORTS_32BIT_KERNEL
1675 config CPU_SUPPORTS_64BIT_KERNEL
1677 config CPU_SUPPORTS_CPUFREQ
1679 config CPU_SUPPORTS_ADDRWINCFG
1681 config CPU_SUPPORTS_HUGEPAGES
1683 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1685 config MIPS_PGD_C0_CONTEXT
1687 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1690 # Set to y for ptrace access to watch registers.
1692 config HARDWARE_WATCHPOINTS
1694 default y if CPU_MIPSR1 || CPU_MIPSR2
1699 prompt "Kernel code model"
1701 You should only select this option if you have a workload that
1702 actually benefits from 64-bit processing or if your machine has
1703 large memory. You will only be presented a single option in this
1704 menu if your system does not support both 32-bit and 64-bit kernels.
1707 bool "32-bit kernel"
1708 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1711 Select this option if you want to build a 32-bit kernel.
1713 bool "64-bit kernel"
1714 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1716 Select this option if you want to build a 64-bit kernel.
1721 bool "KVM Guest Kernel"
1723 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1725 config KVM_HOST_FREQ
1726 int "KVM Host Processor Frequency (MHz)"
1727 depends on KVM_GUEST
1730 Select this option if building a guest kernel for KVM to skip
1731 RTC emulation when determining guest CPU Frequency. Instead, the guest
1732 processor frequency is automatically derived from the host frequency.
1735 prompt "Kernel page size"
1736 default PAGE_SIZE_4KB
1738 config PAGE_SIZE_4KB
1740 depends on !CPU_LOONGSON2
1742 This option select the standard 4kB Linux page size. On some
1743 R3000-family processors this is the only available page size. Using
1744 4kB page size will minimize memory consumption and is therefore
1745 recommended for low memory systems.
1747 config PAGE_SIZE_8KB
1749 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1751 Using 8kB page size will result in higher performance kernel at
1752 the price of higher memory consumption. This option is available
1753 only on R8000 and cnMIPS processors. Note that you will need a
1754 suitable Linux distribution to support this.
1756 config PAGE_SIZE_16KB
1758 depends on !CPU_R3000 && !CPU_TX39XX
1760 Using 16kB page size will result in higher performance kernel at
1761 the price of higher memory consumption. This option is available on
1762 all non-R3000 family processors. Note that you will need a suitable
1763 Linux distribution to support this.
1765 config PAGE_SIZE_32KB
1767 depends on CPU_CAVIUM_OCTEON
1769 Using 32kB page size will result in higher performance kernel at
1770 the price of higher memory consumption. This option is available
1771 only on cnMIPS cores. Note that you will need a suitable Linux
1772 distribution to support this.
1774 config PAGE_SIZE_64KB
1776 depends on !CPU_R3000 && !CPU_TX39XX
1778 Using 64kB page size will result in higher performance kernel at
1779 the price of higher memory consumption. This option is available on
1780 all non-R3000 family processor. Not that at the time of this
1781 writing this option is still high experimental.
1785 config FORCE_MAX_ZONEORDER
1786 int "Maximum zone order"
1787 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1788 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1789 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1790 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1791 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1792 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1796 The kernel memory allocator divides physically contiguous memory
1797 blocks into "zones", where each zone is a power of two number of
1798 pages. This option selects the largest power of two that the kernel
1799 keeps in the memory allocator. If you need to allocate very large
1800 blocks of physically contiguous memory, then you may need to
1801 increase this value.
1803 This config option is actually maximum order plus one. For example,
1804 a value of 11 means that the largest free memory block is 2^10 pages.
1806 The page size is not necessarily 4KB. Keep this in mind
1807 when choosing a value for this option.
1810 bool "Use GIC global counter for clock events"
1811 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1813 Use the GIC global counter for the clock events. The R4K clock
1814 event driver is always present, so if the platform ends up not
1815 detecting a GIC, it will fall back to the R4K timer for the
1816 generation of clock events.
1821 config IP22_CPU_SCACHE
1826 # Support for a MIPS32 / MIPS64 style S-caches
1828 config MIPS_CPU_SCACHE
1832 config R5000_CPU_SCACHE
1836 config RM7000_CPU_SCACHE
1840 config SIBYTE_DMA_PAGEOPS
1841 bool "Use DMA to clear/copy pages"
1844 Instead of using the CPU to zero and copy pages, use a Data Mover
1845 channel. These DMA channels are otherwise unused by the standard
1846 SiByte Linux port. Seems to give a small performance benefit.
1848 config CPU_HAS_PREFETCH
1851 config CPU_GENERIC_DUMP_TLB
1853 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1857 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1859 config CPU_R4K_CACHE_TLB
1861 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1864 prompt "MIPS MT options"
1866 config MIPS_MT_DISABLED
1867 bool "Disable multithreading support."
1869 Use this option if your workload can't take advantage of
1870 MIPS hardware multithreading support. On systems that don't have
1871 the option of an MT-enabled processor this option will be the only
1872 option in this menu.
1875 bool "Use 1 TC on each available VPE for SMP"
1876 depends on SYS_SUPPORTS_MULTITHREADING
1877 select CPU_MIPSR2_IRQ_VI
1878 select CPU_MIPSR2_IRQ_EI
1880 select NR_CPUS_DEFAULT_2
1882 select SYS_SUPPORTS_SCHED_SMT if SMP
1883 select SYS_SUPPORTS_SMP
1885 select MIPS_PERF_SHARED_TC_COUNTERS
1887 This is a kernel model which is known a VSMP but lately has been
1888 marketesed into SMVP.
1889 Virtual SMP uses the processor's VPEs to implement virtual
1890 processors. In currently available configuration of the 34K processor
1891 this allows for a dual processor. Both processors will share the same
1892 primary caches; each will obtain the half of the TLB for it's own
1893 exclusive use. For a layman this model can be described as similar to
1894 what Intel calls Hyperthreading.
1896 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1899 bool "SMTC: Use all TCs on all VPEs for SMP"
1900 depends on CPU_MIPS32_R2
1901 #depends on CPU_MIPS64_R2 # once there is hardware ...
1902 depends on SYS_SUPPORTS_MULTITHREADING
1903 select CPU_MIPSR2_IRQ_VI
1904 select CPU_MIPSR2_IRQ_EI
1906 select NR_CPUS_DEFAULT_8
1908 select SYS_SUPPORTS_SMP
1911 This is a kernel model which is known a SMTC or lately has been
1912 marketesed into SMVP.
1913 is presenting the available TC's of the core as processors to Linux.
1914 On currently available 34K processors this means a Linux system will
1915 see up to 5 processors. The implementation of the SMTC kernel differs
1916 significantly from VSMP and cannot efficiently coexist in the same
1917 kernel binary so the choice between VSMP and SMTC is a compile time
1920 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1928 bool "SMT (multithreading) scheduler support"
1929 depends on SYS_SUPPORTS_SCHED_SMT
1932 SMT scheduler support improves the CPU scheduler's decision making
1933 when dealing with MIPS MT enabled cores at a cost of slightly
1934 increased overhead in some places. If unsure say N here.
1936 config SYS_SUPPORTS_SCHED_SMT
1939 config SYS_SUPPORTS_MULTITHREADING
1942 config MIPS_MT_FPAFF
1943 bool "Dynamic FPU affinity for FP-intensive threads"
1945 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1947 config MIPS_VPE_LOADER
1948 bool "VPE loader support."
1949 depends on SYS_SUPPORTS_MULTITHREADING
1950 select CPU_MIPSR2_IRQ_VI
1951 select CPU_MIPSR2_IRQ_EI
1954 Includes a loader for loading an elf relocatable object
1955 onto another VPE and running it.
1957 config MIPS_MT_SMTC_IM_BACKSTOP
1958 bool "Use per-TC register bits as backstop for inhibited IM bits"
1959 depends on MIPS_MT_SMTC
1962 To support multiple TC microthreads acting as "CPUs" within
1963 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1964 during interrupt handling. To support legacy drivers and interrupt
1965 controller management code, SMTC has a "backstop" to track and
1966 if necessary restore the interrupt mask. This has some performance
1967 impact on interrupt service overhead.
1969 config MIPS_MT_SMTC_IRQAFF
1970 bool "Support IRQ affinity API"
1971 depends on MIPS_MT_SMTC
1974 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1975 for SMTC Linux kernel. Requires platform support, of which
1976 an example can be found in the MIPS kernel i8259 and Malta
1977 platform code. Adds some overhead to interrupt dispatch, and
1978 should be used only if you know what you are doing.
1980 config MIPS_VPE_LOADER_TOM
1981 bool "Load VPE program into memory hidden from linux"
1982 depends on MIPS_VPE_LOADER
1985 The loader can use memory that is present but has been hidden from
1986 Linux using the kernel command line option "mem=xxMB". It's up to
1987 you to ensure the amount you put in the option and the space your
1988 program requires is less or equal to the amount physically present.
1990 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1991 config MIPS_VPE_APSP_API
1992 bool "Enable support for AP/SP API (RTLX)"
1993 depends on MIPS_VPE_LOADER
1997 bool "MIPS CMP framework support"
1998 depends on SYS_SUPPORTS_MIPS_CMP
2000 select SYS_SUPPORTS_SMP
2001 select SYS_SUPPORTS_SCHED_SMT if SMP
2002 select WEAK_ORDERING
2005 This is a placeholder option for the GCMP work. It will need to
2006 be handled differently...
2008 config SB1_PASS_1_WORKAROUNDS
2010 depends on CPU_SB1_PASS_1
2013 config SB1_PASS_2_WORKAROUNDS
2015 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2018 config SB1_PASS_2_1_WORKAROUNDS
2020 depends on CPU_SB1 && CPU_SB1_PASS_2
2024 config 64BIT_PHYS_ADDR
2027 config ARCH_PHYS_ADDR_T_64BIT
2028 def_bool 64BIT_PHYS_ADDR
2030 config CPU_HAS_SMARTMIPS
2031 depends on SYS_SUPPORTS_SMARTMIPS
2032 bool "Support for the SmartMIPS ASE"
2034 SmartMIPS is a extension of the MIPS32 architecture aimed at
2035 increased security at both hardware and software level for
2036 smartcards. Enabling this option will allow proper use of the
2037 SmartMIPS instructions by Linux applications. However a kernel with
2038 this option will not work on a MIPS core without SmartMIPS core. If
2039 you don't know you probably don't have SmartMIPS and should say N
2042 config CPU_MICROMIPS
2043 depends on SYS_SUPPORTS_MICROMIPS
2044 bool "Build kernel using microMIPS ISA"
2046 When this option is enabled the kernel will be built using the
2056 # Vectored interrupt mode is an R2 feature
2058 config CPU_MIPSR2_IRQ_VI
2062 # Extended interrupt mode is an R2 feature
2064 config CPU_MIPSR2_IRQ_EI
2069 depends on !CPU_R3000
2075 config CPU_DADDI_WORKAROUNDS
2078 config CPU_R4000_WORKAROUNDS
2080 select CPU_R4400_WORKAROUNDS
2082 config CPU_R4400_WORKAROUNDS
2086 # - Highmem only makes sense for the 32-bit kernel.
2087 # - The current highmem code will only work properly on physically indexed
2088 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2089 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2090 # moment we protect the user and offer the highmem option only on machines
2091 # where it's known to be safe. This will not offer highmem on a few systems
2092 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2093 # indexed CPUs but we're playing safe.
2094 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2095 # know they might have memory configurations that could make use of highmem
2099 bool "High Memory Support"
2100 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2102 config CPU_SUPPORTS_HIGHMEM
2105 config SYS_SUPPORTS_HIGHMEM
2108 config SYS_SUPPORTS_SMARTMIPS
2111 config SYS_SUPPORTS_MICROMIPS
2114 config ARCH_FLATMEM_ENABLE
2116 depends on !NUMA && !CPU_LOONGSON2
2118 config ARCH_DISCONTIGMEM_ENABLE
2120 default y if SGI_IP27
2122 Say Y to support efficient handling of discontiguous physical memory,
2123 for architectures which are either NUMA (Non-Uniform Memory Access)
2124 or have huge holes in the physical address space for other reasons.
2125 See <file:Documentation/vm/numa> for more.
2127 config ARCH_SPARSEMEM_ENABLE
2129 select SPARSEMEM_STATIC
2133 depends on SYS_SUPPORTS_NUMA
2135 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2136 Access). This option improves performance on systems with more
2137 than two nodes; on two node systems it is generally better to
2138 leave it disabled; on single node systems disable this option
2141 config SYS_SUPPORTS_NUMA
2147 depends on NEED_MULTIPLE_NODES
2149 config HW_PERF_EVENTS
2150 bool "Enable hardware performance counter support for perf events"
2151 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2154 Enable hardware performance counter support for perf events. If
2155 disabled, perf events will use software events only.
2160 bool "Multi-Processing support"
2161 depends on SYS_SUPPORTS_SMP
2162 select USE_GENERIC_SMP_HELPERS
2164 This enables support for systems with more than one CPU. If you have
2165 a system with only one CPU, like most personal computers, say N. If
2166 you have a system with more than one CPU, say Y.
2168 If you say N here, the kernel will run on single and multiprocessor
2169 machines, but will use only one CPU of a multiprocessor machine. If
2170 you say Y here, the kernel will run on many, but not all,
2171 singleprocessor machines. On a singleprocessor machine, the kernel
2172 will run faster if you say N here.
2174 People using multiprocessor machines who say Y here should also say
2175 Y to "Enhanced Real Time Clock Support", below.
2177 See also the SMP-HOWTO available at
2178 <http://www.tldp.org/docs.html#howto>.
2180 If you don't know what to do here, say N.
2185 config SYS_SUPPORTS_MIPS_CMP
2188 config SYS_SUPPORTS_SMP
2191 config NR_CPUS_DEFAULT_1
2194 config NR_CPUS_DEFAULT_2
2197 config NR_CPUS_DEFAULT_4
2200 config NR_CPUS_DEFAULT_8
2203 config NR_CPUS_DEFAULT_16
2206 config NR_CPUS_DEFAULT_32
2209 config NR_CPUS_DEFAULT_64
2213 int "Maximum number of CPUs (2-64)"
2214 range 1 64 if NR_CPUS_DEFAULT_1
2216 default "1" if NR_CPUS_DEFAULT_1
2217 default "2" if NR_CPUS_DEFAULT_2
2218 default "4" if NR_CPUS_DEFAULT_4
2219 default "8" if NR_CPUS_DEFAULT_8
2220 default "16" if NR_CPUS_DEFAULT_16
2221 default "32" if NR_CPUS_DEFAULT_32
2222 default "64" if NR_CPUS_DEFAULT_64
2224 This allows you to specify the maximum number of CPUs which this
2225 kernel will support. The maximum supported value is 32 for 32-bit
2226 kernel and 64 for 64-bit kernels; the minimum value which makes
2227 sense is 1 for Qemu (useful only for kernel debugging purposes)
2228 and 2 for all others.
2230 This is purely to save memory - each supported CPU adds
2231 approximately eight kilobytes to the kernel image. For best
2232 performance should round up your number of processors to the next
2235 config MIPS_PERF_SHARED_TC_COUNTERS
2239 # Timer Interrupt Frequency Configuration
2243 prompt "Timer frequency"
2246 Allows the configuration of the timer frequency.
2249 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2252 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2255 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2258 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2261 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2264 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2267 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2271 config SYS_SUPPORTS_48HZ
2274 config SYS_SUPPORTS_100HZ
2277 config SYS_SUPPORTS_128HZ
2280 config SYS_SUPPORTS_250HZ
2283 config SYS_SUPPORTS_256HZ
2286 config SYS_SUPPORTS_1000HZ
2289 config SYS_SUPPORTS_1024HZ
2292 config SYS_SUPPORTS_ARBIT_HZ
2294 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2295 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2296 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2297 !SYS_SUPPORTS_1024HZ
2302 default 100 if HZ_100
2303 default 128 if HZ_128
2304 default 250 if HZ_250
2305 default 256 if HZ_256
2306 default 1000 if HZ_1000
2307 default 1024 if HZ_1024
2309 source "kernel/Kconfig.preempt"
2312 bool "Kexec system call"
2314 kexec is a system call that implements the ability to shutdown your
2315 current kernel, and to start another kernel. It is like a reboot
2316 but it is independent of the system firmware. And like a reboot
2317 you can start any kernel with it, not just Linux.
2319 The name comes from the similarity to the exec system call.
2321 It is an ongoing process to be certain the hardware in a machine
2322 is properly shutdown, so do not be surprised if this code does not
2323 initially work for you. It may help to enable device hotplugging
2324 support. As of this writing the exact hardware interface is
2325 strongly in flux, so no good recommendation can be made.
2328 bool "Kernel crash dumps"
2330 Generate crash dump after being started by kexec.
2331 This should be normally only set in special crash dump kernels
2332 which are loaded in the main kernel with kexec-tools into
2333 a specially reserved region and then later executed after
2334 a crash by kdump/kexec. The crash dump kernel must be compiled
2335 to a memory address not used by the main kernel or firmware using
2338 config PHYSICAL_START
2339 hex "Physical address where the kernel is loaded"
2340 default "0xffffffff84000000" if 64BIT
2341 default "0x84000000" if 32BIT
2342 depends on CRASH_DUMP
2344 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2345 If you plan to use kernel for capturing the crash dump change
2346 this value to start of the reserved region (the "X" value as
2347 specified in the "crashkernel=YM@XM" command line boot parameter
2348 passed to the panic-ed kernel).
2351 bool "Enable seccomp to safely compute untrusted bytecode"
2355 This kernel feature is useful for number crunching applications
2356 that may need to compute untrusted bytecode during their
2357 execution. By using pipes or other transports made available to
2358 the process as file descriptors supporting the read/write
2359 syscalls, it's possible to isolate those applications in
2360 their own address space using seccomp. Once seccomp is
2361 enabled via /proc/<pid>/seccomp, it cannot be disabled
2362 and the task is only allowed to execute a few safe syscalls
2363 defined by each seccomp mode.
2365 If unsure, say Y. Only embedded should say N here.
2370 select OF_EARLY_FLATTREE
2375 config LOCKDEP_SUPPORT
2379 config STACKTRACE_SUPPORT
2383 source "init/Kconfig"
2385 source "kernel/Kconfig.freezer"
2387 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2395 bool "Support for PCI controller"
2396 depends on HW_HAS_PCI
2398 select GENERIC_PCI_IOMAP
2399 select NO_GENERIC_PCI_IOPORT_MAP
2401 Find out whether you have a PCI motherboard. PCI is the name of a
2402 bus system, i.e. the way the CPU talks to the other stuff inside
2403 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2409 source "drivers/pci/Kconfig"
2411 source "drivers/pci/pcie/Kconfig"
2414 # ISA support is now enabled via select. Too many systems still have the one
2415 # or other ISA chip on the board that users don't know about so don't expect
2416 # users to choose the right thing ...
2423 depends on HW_HAS_EISA
2425 select GENERIC_ISA_DMA
2427 The Extended Industry Standard Architecture (EISA) bus was
2428 developed as an open alternative to the IBM MicroChannel bus.
2430 The EISA bus provided some of the features of the IBM MicroChannel
2431 bus while maintaining backward compatibility with cards made for
2432 the older ISA bus. The EISA bus saw limited use between 1988 and
2433 1995 when it was made obsolete by the PCI bus.
2435 Say Y here if you are building a kernel for an EISA-based machine.
2439 source "drivers/eisa/Kconfig"
2442 bool "TURBOchannel support"
2443 depends on MACH_DECSTATION
2445 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2446 processors. TURBOchannel programming specifications are available
2448 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2450 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2451 Linux driver support status is documented at:
2452 <http://www.linux-mips.org/wiki/DECstation>
2462 select MIPS_EXTERNAL_TIMER
2470 source "drivers/pcmcia/Kconfig"
2472 source "drivers/pci/hotplug/Kconfig"
2475 bool "RapidIO support"
2479 If you say Y here, the kernel will include drivers and
2480 infrastructure code to support RapidIO interconnect devices.
2482 source "drivers/rapidio/Kconfig"
2486 menu "Executable file formats"
2488 source "fs/Kconfig.binfmt"
2493 config MIPS32_COMPAT
2494 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2497 Select this option if you want Linux/MIPS 32-bit binary
2498 compatibility. Since all software available for Linux/MIPS is
2499 currently 32-bit you should say Y here.
2503 depends on MIPS32_COMPAT
2504 select ARCH_WANT_OLD_COMPAT_IPC
2507 config SYSVIPC_COMPAT
2509 depends on COMPAT && SYSVIPC
2513 bool "Kernel support for o32 binaries"
2514 depends on MIPS32_COMPAT
2516 Select this option if you want to run o32 binaries. These are pure
2517 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2518 existing binaries are in this format.
2523 bool "Kernel support for n32 binaries"
2524 depends on MIPS32_COMPAT
2526 Select this option if you want to run n32 binaries. These are
2527 64-bit binaries using 32-bit quantities for addressing and certain
2528 data that would normally be 64-bit. They are used in special
2535 default y if MIPS32_O32 || MIPS32_N32
2539 menu "Power management options"
2541 config ARCH_HIBERNATION_POSSIBLE
2543 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2545 config ARCH_SUSPEND_POSSIBLE
2547 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2549 source "kernel/power/Kconfig"
2553 config MIPS_EXTERNAL_TIMER
2556 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2557 menu "CPU Power Management"
2558 source "drivers/cpufreq/Kconfig"
2562 source "net/Kconfig"
2564 source "drivers/Kconfig"
2566 source "drivers/firmware/Kconfig"
2570 source "arch/mips/Kconfig.debug"
2572 source "security/Kconfig"
2574 source "crypto/Kconfig"
2576 source "lib/Kconfig"
2578 source "arch/mips/kvm/Kconfig"