4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL if MODULES
43 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 select CLONE_BACKWARDS
46 menu "Machine selection"
56 bool "Alchemy processor based machines"
57 select 64BIT_PHYS_ADDR
61 select SYS_HAS_CPU_MIPS32_R1
62 select SYS_SUPPORTS_32BIT_KERNEL
63 select SYS_SUPPORTS_APM_EMULATION
65 select ARCH_WANT_OPTIONAL_GPIOLIB
66 select SYS_SUPPORTS_ZBOOT
67 select USB_ARCH_HAS_OHCI
68 select USB_ARCH_HAS_EHCI
71 bool "Texas Instruments AR7"
73 select DMA_NONCOHERENT
79 select SYS_HAS_CPU_MIPS32_R1
80 select SYS_HAS_EARLY_PRINTK
81 select SYS_SUPPORTS_32BIT_KERNEL
82 select SYS_SUPPORTS_LITTLE_ENDIAN
83 select SYS_SUPPORTS_ZBOOT_UART16550
84 select ARCH_REQUIRE_GPIOLIB
88 Support for the Texas Instruments AR7 System-on-a-Chip
89 family: TNETD7100, 7200 and 7300.
92 bool "Atheros AR71XX/AR724X/AR913X based boards"
93 select ARCH_REQUIRE_GPIOLIB
97 select DMA_NONCOHERENT
101 select SYS_HAS_CPU_MIPS32_R2
102 select SYS_HAS_EARLY_PRINTK
103 select SYS_SUPPORTS_32BIT_KERNEL
104 select SYS_SUPPORTS_BIG_ENDIAN
106 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
109 bool "Broadcom BCM47XX based boards"
110 select ARCH_WANT_OPTIONAL_GPIOLIB
114 select DMA_NONCOHERENT
118 select NO_EXCEPT_FILL
119 select SYS_SUPPORTS_32BIT_KERNEL
120 select SYS_SUPPORTS_LITTLE_ENDIAN
121 select SYS_HAS_EARLY_PRINTK
123 Support for BCM47XX based boards
126 bool "Broadcom BCM63XX based boards"
129 select DMA_NONCOHERENT
131 select SYS_HAS_CPU_MIPS32_R1
132 select SYS_SUPPORTS_32BIT_KERNEL
133 select SYS_SUPPORTS_BIG_ENDIAN
134 select SYS_HAS_EARLY_PRINTK
136 select ARCH_REQUIRE_GPIOLIB
139 Support for BCM63XX based boards
146 select DMA_NONCOHERENT
152 select PCI_GT64XXX_PCI0
154 select SYS_HAS_CPU_NEVADA
155 select SYS_HAS_EARLY_PRINTK
156 select SYS_SUPPORTS_32BIT_KERNEL
157 select SYS_SUPPORTS_64BIT_KERNEL
158 select SYS_SUPPORTS_LITTLE_ENDIAN
160 config MACH_DECSTATION
167 select CPU_DADDI_WORKAROUNDS if 64BIT
168 select CPU_R4000_WORKAROUNDS if 64BIT
169 select CPU_R4400_WORKAROUNDS if 64BIT
170 select DMA_NONCOHERENT
173 select SYS_HAS_CPU_R3000
174 select SYS_HAS_CPU_R4X00
175 select SYS_SUPPORTS_32BIT_KERNEL
176 select SYS_SUPPORTS_64BIT_KERNEL
177 select SYS_SUPPORTS_LITTLE_ENDIAN
178 select SYS_SUPPORTS_128HZ
179 select SYS_SUPPORTS_256HZ
180 select SYS_SUPPORTS_1024HZ
182 This enables support for DEC's MIPS based workstations. For details
183 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
184 DECstation porting pages on <http://decstation.unix-ag.org/>.
186 If you have one of the following DECstation Models you definitely
187 want to choose R4xx0 for the CPU Type:
194 otherwise choose R3000.
197 bool "Jazz family of machines"
200 select ARCH_MAY_HAVE_PC_FDC
203 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
204 select GENERIC_ISA_DMA
205 select HAVE_PCSPKR_PLATFORM
210 select SYS_HAS_CPU_R4X00
211 select SYS_SUPPORTS_32BIT_KERNEL
212 select SYS_SUPPORTS_64BIT_KERNEL
213 select SYS_SUPPORTS_100HZ
215 This a family of machines based on the MIPS R4030 chipset which was
216 used by several vendors to build RISC/os and Windows NT workstations.
217 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
218 Olivetti M700-10 workstations.
221 bool "Ingenic JZ4740 based machines"
222 select SYS_HAS_CPU_MIPS32_R1
223 select SYS_SUPPORTS_32BIT_KERNEL
224 select SYS_SUPPORTS_LITTLE_ENDIAN
225 select SYS_SUPPORTS_ZBOOT_UART16550
226 select DMA_NONCOHERENT
229 select ARCH_REQUIRE_GPIOLIB
230 select SYS_HAS_EARLY_PRINTK
233 select GENERIC_IRQ_CHIP
236 bool "Lantiq based platforms"
237 select DMA_NONCOHERENT
241 select SYS_HAS_CPU_MIPS32_R1
242 select SYS_HAS_CPU_MIPS32_R2
243 select SYS_SUPPORTS_BIG_ENDIAN
244 select SYS_SUPPORTS_32BIT_KERNEL
245 select SYS_SUPPORTS_MULTITHREADING
246 select SYS_HAS_EARLY_PRINTK
247 select ARCH_REQUIRE_GPIOLIB
250 select HAVE_MACH_CLKDEV
254 select PINCTRL_LANTIQ
257 bool "LASAT Networks platforms"
260 select DMA_NONCOHERENT
261 select SYS_HAS_EARLY_PRINTK
264 select PCI_GT64XXX_PCI0
266 select R5000_CPU_SCACHE
267 select SYS_HAS_CPU_R5000
268 select SYS_SUPPORTS_32BIT_KERNEL
269 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
270 select SYS_SUPPORTS_LITTLE_ENDIAN
273 bool "Loongson family of machines"
274 select SYS_SUPPORTS_ZBOOT
276 This enables the support of Loongson family of machines.
278 Loongson is a family of general-purpose MIPS-compatible CPUs.
279 developed at Institute of Computing Technology (ICT),
280 Chinese Academy of Sciences (CAS) in the People's Republic
281 of China. The chief architect is Professor Weiwu Hu.
283 config MACH_LOONGSON1
284 bool "Loongson 1 family of machines"
285 select SYS_SUPPORTS_ZBOOT
287 This enables support for the Loongson 1 based machines.
289 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
290 the ICT (Institute of Computing Technology) and the Chinese Academy
294 bool "MIPS Malta board"
295 select ARCH_MAY_HAVE_PC_FDC
301 select DMA_NONCOHERENT
302 select GENERIC_ISA_DMA
303 select HAVE_PCSPKR_PLATFORM
310 select MIPS_CPU_SCACHE
311 select PCI_GT64XXX_PCI0
314 select SYS_HAS_CPU_MIPS32_R1
315 select SYS_HAS_CPU_MIPS32_R2
316 select SYS_HAS_CPU_MIPS64_R1
317 select SYS_HAS_CPU_MIPS64_R2
318 select SYS_HAS_CPU_NEVADA
319 select SYS_HAS_CPU_RM7000
320 select SYS_HAS_EARLY_PRINTK
321 select SYS_SUPPORTS_32BIT_KERNEL
322 select SYS_SUPPORTS_64BIT_KERNEL
323 select SYS_SUPPORTS_BIG_ENDIAN
324 select SYS_SUPPORTS_LITTLE_ENDIAN
325 select SYS_SUPPORTS_MIPS_CMP
326 select SYS_SUPPORTS_MULTITHREADING
327 select SYS_SUPPORTS_SMARTMIPS
328 select SYS_SUPPORTS_ZBOOT
330 This enables support for the MIPS Technologies Malta evaluation
334 bool "MIPS SEAD3 board"
339 select CPU_MIPSR2_IRQ_VI
340 select CPU_MIPSR2_IRQ_EI
341 select DMA_NONCOHERENT
344 select MIPS_CPU_SCACHE
346 select SYS_HAS_CPU_MIPS32_R1
347 select SYS_HAS_CPU_MIPS32_R2
348 select SYS_HAS_CPU_MIPS64_R1
349 select SYS_HAS_EARLY_PRINTK
350 select SYS_SUPPORTS_32BIT_KERNEL
351 select SYS_SUPPORTS_64BIT_KERNEL
352 select SYS_SUPPORTS_BIG_ENDIAN
353 select SYS_SUPPORTS_LITTLE_ENDIAN
354 select SYS_SUPPORTS_SMARTMIPS
355 select USB_ARCH_HAS_EHCI
356 select USB_EHCI_BIG_ENDIAN_DESC
357 select USB_EHCI_BIG_ENDIAN_MMIO
360 This enables support for the MIPS Technologies SEAD3 evaluation
364 bool "NEC EMMA2RH Mark-eins board"
368 This enables support for the NEC Electronics Mark-eins boards.
371 bool "NEC VR4100 series based machines"
374 select SYS_HAS_CPU_VR41XX
375 select ARCH_REQUIRE_GPIOLIB
378 bool "NXP STB220 board"
381 Support for NXP Semiconductors STB220 Development Board.
388 Support for NXP Semiconductors STB225 Development Board.
391 bool "PMC-Sierra MSP chipsets"
394 select DMA_NONCOHERENT
396 select NO_EXCEPT_FILL
398 select SYS_HAS_CPU_MIPS32_R1
399 select SYS_HAS_CPU_MIPS32_R2
400 select SYS_SUPPORTS_32BIT_KERNEL
401 select SYS_SUPPORTS_BIG_ENDIAN
404 select SERIAL_8250_CONSOLE
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_SIMULATOR
737 bool "Cavium Networks Octeon Simulator"
739 select 64BIT_PHYS_ADDR
741 select SYS_SUPPORTS_64BIT_KERNEL
742 select SYS_SUPPORTS_BIG_ENDIAN
743 select SYS_SUPPORTS_HOTPLUG_CPU
744 select SYS_HAS_CPU_CAVIUM_OCTEON
747 The Octeon simulator is software performance model of the Cavium
748 Octeon Processor. It supports simulating Octeon processors on x86
751 config CAVIUM_OCTEON_REFERENCE_BOARD
752 bool "Cavium Networks Octeon reference board"
754 select 64BIT_PHYS_ADDR
756 select SYS_SUPPORTS_64BIT_KERNEL
757 select SYS_SUPPORTS_BIG_ENDIAN
759 select SYS_SUPPORTS_HOTPLUG_CPU
760 select SYS_HAS_EARLY_PRINTK
761 select SYS_HAS_CPU_CAVIUM_OCTEON
764 select ARCH_SUPPORTS_MSI
766 select USB_ARCH_HAS_OHCI
767 select USB_ARCH_HAS_EHCI
770 This option supports all of the Octeon reference boards from Cavium
771 Networks. It builds a kernel that dynamically determines the Octeon
772 CPU type and supports all known board reference implementations.
773 Some of the supported boards are:
780 Say Y here for most Octeon reference boards.
783 bool "Netlogic XLR/XLS based systems"
786 select SYS_HAS_CPU_XLR
787 select SYS_SUPPORTS_SMP
790 select SYS_SUPPORTS_32BIT_KERNEL
791 select SYS_SUPPORTS_64BIT_KERNEL
792 select 64BIT_PHYS_ADDR
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_HIGHMEM
796 select NR_CPUS_DEFAULT_32
800 select ARCH_SUPPORTS_MSI
801 select ZONE_DMA32 if 64BIT
803 select SYS_HAS_EARLY_PRINTK
804 select USB_ARCH_HAS_OHCI if USB_SUPPORT
805 select USB_ARCH_HAS_EHCI if USB_SUPPORT
807 Support for systems based on Netlogic XLR and XLS processors.
808 Say Y here if you have a XLR or XLS based board.
811 bool "Netlogic XLP based systems"
814 select SYS_HAS_CPU_XLP
815 select SYS_SUPPORTS_SMP
817 select SYS_SUPPORTS_32BIT_KERNEL
818 select SYS_SUPPORTS_64BIT_KERNEL
819 select 64BIT_PHYS_ADDR
820 select SYS_SUPPORTS_BIG_ENDIAN
821 select SYS_SUPPORTS_LITTLE_ENDIAN
822 select SYS_SUPPORTS_HIGHMEM
824 select NR_CPUS_DEFAULT_32
828 select ZONE_DMA32 if 64BIT
830 select SYS_HAS_EARLY_PRINTK
833 This board is based on Netlogic XLP Processor.
834 Say Y here if you have a XLP based board.
838 source "arch/mips/alchemy/Kconfig"
839 source "arch/mips/ath79/Kconfig"
840 source "arch/mips/bcm47xx/Kconfig"
841 source "arch/mips/bcm63xx/Kconfig"
842 source "arch/mips/jazz/Kconfig"
843 source "arch/mips/jz4740/Kconfig"
844 source "arch/mips/lantiq/Kconfig"
845 source "arch/mips/lasat/Kconfig"
846 source "arch/mips/pmcs-msp71xx/Kconfig"
847 source "arch/mips/powertv/Kconfig"
848 source "arch/mips/ralink/Kconfig"
849 source "arch/mips/sgi-ip27/Kconfig"
850 source "arch/mips/sibyte/Kconfig"
851 source "arch/mips/txx9/Kconfig"
852 source "arch/mips/vr41xx/Kconfig"
853 source "arch/mips/cavium-octeon/Kconfig"
854 source "arch/mips/loongson/Kconfig"
855 source "arch/mips/loongson1/Kconfig"
856 source "arch/mips/netlogic/Kconfig"
860 config RWSEM_GENERIC_SPINLOCK
864 config RWSEM_XCHGADD_ALGORITHM
867 config ARCH_HAS_ILOG2_U32
871 config ARCH_HAS_ILOG2_U64
875 config GENERIC_HWEIGHT
879 config GENERIC_CALIBRATE_DELAY
883 config SCHED_OMIT_FRAME_POINTER
888 # Select some configuration options automatically based on user selections.
893 config ARCH_MAY_HAVE_PC_FDC
937 select ARCH_REQUIRE_GPIOLIB
943 config ARCH_DMA_ADDR_T_64BIT
944 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
949 config DMA_NONCOHERENT
951 select NEED_DMA_MAP_STATE
953 config NEED_DMA_MAP_STATE
956 config SYS_HAS_EARLY_PRINTK
960 bool "Support for hot-pluggable CPUs"
961 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
963 Say Y here to allow turning CPUs off and on. CPUs can be
964 controlled through /sys/devices/system/cpu.
965 (Note: power management support will enable this option
966 automatically on SMP systems. )
967 Say N if you want to disable CPU hotplug.
969 config SYS_SUPPORTS_HOTPLUG_CPU
984 config MIPS_DISABLE_OBSOLETE_IDE
996 config GENERIC_ISA_DMA
998 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1001 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1003 select GENERIC_ISA_DMA
1011 config HOLES_IN_ZONE
1015 # Endianness selection. Sufficiently obscure so many users don't know what to
1016 # answer,so we try hard to limit the available choices. Also the use of a
1017 # choice statement should be more obvious to the user.
1020 prompt "Endianness selection"
1022 Some MIPS machines can be configured for either little or big endian
1023 byte order. These modes require different kernels and a different
1024 Linux distribution. In general there is one preferred byteorder for a
1025 particular system but some systems are just as commonly used in the
1026 one or the other endianness.
1028 config CPU_BIG_ENDIAN
1030 depends on SYS_SUPPORTS_BIG_ENDIAN
1032 config CPU_LITTLE_ENDIAN
1033 bool "Little endian"
1034 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1042 config SYS_SUPPORTS_APM_EMULATION
1045 config SYS_SUPPORTS_BIG_ENDIAN
1048 config SYS_SUPPORTS_LITTLE_ENDIAN
1051 config SYS_SUPPORTS_HUGETLBFS
1053 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1056 config MIPS_HUGE_TLB_SUPPORT
1057 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1080 config PCI_GT64XXX_PCI0
1083 config NO_EXCEPT_FILL
1090 select DMA_NONCOHERENT
1092 select SWAP_IO_SPACE
1093 select SYS_HAS_CPU_R5500
1094 select SYS_SUPPORTS_32BIT_KERNEL
1095 select SYS_SUPPORTS_64BIT_KERNEL
1096 select SYS_SUPPORTS_BIG_ENDIAN
1103 select DMA_NONCOHERENT
1104 select SYS_HAS_CPU_MIPS32_R2
1105 select SYS_SUPPORTS_32BIT_KERNEL
1106 select SYS_SUPPORTS_LITTLE_ENDIAN
1107 select SYS_SUPPORTS_BIG_ENDIAN
1109 select CPU_MIPSR2_IRQ_VI
1115 config SWAP_IO_SPACE
1118 config SGI_HAS_INDYDOG
1130 config SGI_HAS_ZILOG
1133 config SGI_HAS_I8042
1136 config DEFAULT_SGI_PARTITION
1148 config MIPS_L1_CACHE_SHIFT
1150 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1151 default "6" if MIPS_CPU_SCACHE
1152 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1155 config HAVE_STD_PC_SERIAL_PORT
1159 bool "ARC console support"
1160 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1164 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1169 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1178 menu "CPU selection"
1184 config CPU_LOONGSON2E
1186 depends on SYS_HAS_CPU_LOONGSON2E
1187 select CPU_LOONGSON2
1189 The Loongson 2E processor implements the MIPS III instruction set
1190 with many extensions.
1192 It has an internal FPGA northbridge, which is compatible to
1195 config CPU_LOONGSON2F
1197 depends on SYS_HAS_CPU_LOONGSON2F
1198 select CPU_LOONGSON2
1200 select ARCH_REQUIRE_GPIOLIB
1202 The Loongson 2F processor implements the MIPS III instruction set
1203 with many extensions.
1205 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1206 have a similar programming interface with FPGA northbridge used in
1209 config CPU_LOONGSON1B
1211 depends on SYS_HAS_CPU_LOONGSON1B
1212 select CPU_LOONGSON1
1214 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1215 release 2 instruction set.
1217 config CPU_MIPS32_R1
1218 bool "MIPS32 Release 1"
1219 depends on SYS_HAS_CPU_MIPS32_R1
1220 select CPU_HAS_PREFETCH
1221 select CPU_SUPPORTS_32BIT_KERNEL
1222 select CPU_SUPPORTS_HIGHMEM
1224 Choose this option to build a kernel for release 1 or later of the
1225 MIPS32 architecture. Most modern embedded systems with a 32-bit
1226 MIPS processor are based on a MIPS32 processor. If you know the
1227 specific type of processor in your system, choose those that one
1228 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1229 Release 2 of the MIPS32 architecture is available since several
1230 years so chances are you even have a MIPS32 Release 2 processor
1231 in which case you should choose CPU_MIPS32_R2 instead for better
1234 config CPU_MIPS32_R2
1235 bool "MIPS32 Release 2"
1236 depends on SYS_HAS_CPU_MIPS32_R2
1237 select CPU_HAS_PREFETCH
1238 select CPU_SUPPORTS_32BIT_KERNEL
1239 select CPU_SUPPORTS_HIGHMEM
1241 Choose this option to build a kernel for release 2 or later of the
1242 MIPS32 architecture. Most modern embedded systems with a 32-bit
1243 MIPS processor are based on a MIPS32 processor. If you know the
1244 specific type of processor in your system, choose those that one
1245 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1247 config CPU_MIPS64_R1
1248 bool "MIPS64 Release 1"
1249 depends on SYS_HAS_CPU_MIPS64_R1
1250 select CPU_HAS_PREFETCH
1251 select CPU_SUPPORTS_32BIT_KERNEL
1252 select CPU_SUPPORTS_64BIT_KERNEL
1253 select CPU_SUPPORTS_HIGHMEM
1254 select CPU_SUPPORTS_HUGEPAGES
1256 Choose this option to build a kernel for release 1 or later of the
1257 MIPS64 architecture. Many modern embedded systems with a 64-bit
1258 MIPS processor are based on a MIPS64 processor. If you know the
1259 specific type of processor in your system, choose those that one
1260 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1261 Release 2 of the MIPS64 architecture is available since several
1262 years so chances are you even have a MIPS64 Release 2 processor
1263 in which case you should choose CPU_MIPS64_R2 instead for better
1266 config CPU_MIPS64_R2
1267 bool "MIPS64 Release 2"
1268 depends on SYS_HAS_CPU_MIPS64_R2
1269 select CPU_HAS_PREFETCH
1270 select CPU_SUPPORTS_32BIT_KERNEL
1271 select CPU_SUPPORTS_64BIT_KERNEL
1272 select CPU_SUPPORTS_HIGHMEM
1273 select CPU_SUPPORTS_HUGEPAGES
1275 Choose this option to build a kernel for release 2 or later of the
1276 MIPS64 architecture. Many modern embedded systems with a 64-bit
1277 MIPS processor are based on a MIPS64 processor. If you know the
1278 specific type of processor in your system, choose those that one
1279 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1283 depends on SYS_HAS_CPU_R3000
1285 select CPU_SUPPORTS_32BIT_KERNEL
1286 select CPU_SUPPORTS_HIGHMEM
1288 Please make sure to pick the right CPU type. Linux/MIPS is not
1289 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1290 *not* work on R4000 machines and vice versa. However, since most
1291 of the supported machines have an R4000 (or similar) CPU, R4x00
1292 might be a safe bet. If the resulting kernel does not work,
1293 try to recompile with R3000.
1297 depends on SYS_HAS_CPU_TX39XX
1298 select CPU_SUPPORTS_32BIT_KERNEL
1302 depends on SYS_HAS_CPU_VR41XX
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_64BIT_KERNEL
1306 The options selects support for the NEC VR4100 series of processors.
1307 Only choose this option if you have one of these processors as a
1308 kernel built with this option will not run on any other type of
1309 processor or vice versa.
1313 depends on SYS_HAS_CPU_R4300
1314 select CPU_SUPPORTS_32BIT_KERNEL
1315 select CPU_SUPPORTS_64BIT_KERNEL
1317 MIPS Technologies R4300-series processors.
1321 depends on SYS_HAS_CPU_R4X00
1322 select CPU_SUPPORTS_32BIT_KERNEL
1323 select CPU_SUPPORTS_64BIT_KERNEL
1324 select CPU_SUPPORTS_HUGEPAGES
1326 MIPS Technologies R4000-series processors other than 4300, including
1327 the R4000, R4400, R4600, and 4700.
1331 depends on SYS_HAS_CPU_TX49XX
1332 select CPU_HAS_PREFETCH
1333 select CPU_SUPPORTS_32BIT_KERNEL
1334 select CPU_SUPPORTS_64BIT_KERNEL
1335 select CPU_SUPPORTS_HUGEPAGES
1339 depends on SYS_HAS_CPU_R5000
1340 select CPU_SUPPORTS_32BIT_KERNEL
1341 select CPU_SUPPORTS_64BIT_KERNEL
1342 select CPU_SUPPORTS_HUGEPAGES
1344 MIPS Technologies R5000-series processors other than the Nevada.
1348 depends on SYS_HAS_CPU_R5432
1349 select CPU_SUPPORTS_32BIT_KERNEL
1350 select CPU_SUPPORTS_64BIT_KERNEL
1351 select CPU_SUPPORTS_HUGEPAGES
1355 depends on SYS_HAS_CPU_R5500
1356 select CPU_SUPPORTS_32BIT_KERNEL
1357 select CPU_SUPPORTS_64BIT_KERNEL
1358 select CPU_SUPPORTS_HUGEPAGES
1360 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1365 depends on SYS_HAS_CPU_R6000
1366 select CPU_SUPPORTS_32BIT_KERNEL
1368 MIPS Technologies R6000 and R6000A series processors. Note these
1369 processors are extremely rare and the support for them is incomplete.
1373 depends on SYS_HAS_CPU_NEVADA
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_64BIT_KERNEL
1376 select CPU_SUPPORTS_HUGEPAGES
1378 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1382 depends on SYS_HAS_CPU_R8000
1383 select CPU_HAS_PREFETCH
1384 select CPU_SUPPORTS_64BIT_KERNEL
1386 MIPS Technologies R8000 processors. Note these processors are
1387 uncommon and the support for them is incomplete.
1391 depends on SYS_HAS_CPU_R10000
1392 select CPU_HAS_PREFETCH
1393 select CPU_SUPPORTS_32BIT_KERNEL
1394 select CPU_SUPPORTS_64BIT_KERNEL
1395 select CPU_SUPPORTS_HIGHMEM
1396 select CPU_SUPPORTS_HUGEPAGES
1398 MIPS Technologies R10000-series processors.
1402 depends on SYS_HAS_CPU_RM7000
1403 select CPU_HAS_PREFETCH
1404 select CPU_SUPPORTS_32BIT_KERNEL
1405 select CPU_SUPPORTS_64BIT_KERNEL
1406 select CPU_SUPPORTS_HIGHMEM
1407 select CPU_SUPPORTS_HUGEPAGES
1411 depends on SYS_HAS_CPU_SB1
1412 select CPU_SUPPORTS_32BIT_KERNEL
1413 select CPU_SUPPORTS_64BIT_KERNEL
1414 select CPU_SUPPORTS_HIGHMEM
1415 select CPU_SUPPORTS_HUGEPAGES
1416 select WEAK_ORDERING
1418 config CPU_CAVIUM_OCTEON
1419 bool "Cavium Octeon processor"
1420 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1421 select ARCH_SPARSEMEM_ENABLE
1422 select CPU_HAS_PREFETCH
1423 select CPU_SUPPORTS_64BIT_KERNEL
1424 select SYS_SUPPORTS_SMP
1425 select NR_CPUS_DEFAULT_16
1426 select WEAK_ORDERING
1427 select CPU_SUPPORTS_HIGHMEM
1428 select CPU_SUPPORTS_HUGEPAGES
1432 The Cavium Octeon processor is a highly integrated chip containing
1433 many ethernet hardware widgets for networking tasks. The processor
1434 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1435 Full details can be found at http://www.caviumnetworks.com.
1437 config CPU_BMIPS3300
1439 depends on SYS_HAS_CPU_BMIPS3300
1442 Broadcom BMIPS3300 processors.
1444 config CPU_BMIPS4350
1446 depends on SYS_HAS_CPU_BMIPS4350
1448 select SYS_SUPPORTS_SMP
1449 select SYS_SUPPORTS_HOTPLUG_CPU
1451 Broadcom BMIPS4350 ("VIPER") processors.
1453 config CPU_BMIPS4380
1455 depends on SYS_HAS_CPU_BMIPS4380
1457 select SYS_SUPPORTS_SMP
1458 select SYS_SUPPORTS_HOTPLUG_CPU
1460 Broadcom BMIPS4380 processors.
1462 config CPU_BMIPS5000
1464 depends on SYS_HAS_CPU_BMIPS5000
1466 select CPU_SUPPORTS_HIGHMEM
1467 select MIPS_CPU_SCACHE
1468 select SYS_SUPPORTS_SMP
1469 select SYS_SUPPORTS_HOTPLUG_CPU
1471 Broadcom BMIPS5000 processors.
1474 bool "Netlogic XLR SoC"
1475 depends on SYS_HAS_CPU_XLR
1476 select CPU_SUPPORTS_32BIT_KERNEL
1477 select CPU_SUPPORTS_64BIT_KERNEL
1478 select CPU_SUPPORTS_HIGHMEM
1479 select CPU_SUPPORTS_HUGEPAGES
1480 select WEAK_ORDERING
1481 select WEAK_REORDERING_BEYOND_LLSC
1483 Netlogic Microsystems XLR/XLS processors.
1486 bool "Netlogic XLP SoC"
1487 depends on SYS_HAS_CPU_XLP
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HIGHMEM
1491 select WEAK_ORDERING
1492 select WEAK_REORDERING_BEYOND_LLSC
1493 select CPU_HAS_PREFETCH
1496 Netlogic Microsystems XLP processors.
1500 config CPU_NOP_WORKAROUNDS
1503 config CPU_JUMP_WORKAROUNDS
1506 config CPU_LOONGSON2F_WORKAROUNDS
1507 bool "Loongson 2F Workarounds"
1509 select CPU_NOP_WORKAROUNDS
1510 select CPU_JUMP_WORKAROUNDS
1512 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1513 require workarounds. Without workarounds the system may hang
1514 unexpectedly. For more information please refer to the gas
1515 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1517 Loongson 2F03 and later have fixed these issues and no workarounds
1518 are needed. The workarounds have no significant side effect on them
1519 but may decrease the performance of the system so this option should
1520 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1523 If unsure, please say Y.
1524 endif # CPU_LOONGSON2F
1526 config SYS_SUPPORTS_ZBOOT
1528 select HAVE_KERNEL_GZIP
1529 select HAVE_KERNEL_BZIP2
1530 select HAVE_KERNEL_LZMA
1531 select HAVE_KERNEL_LZO
1533 config SYS_SUPPORTS_ZBOOT_UART16550
1535 select SYS_SUPPORTS_ZBOOT
1537 config CPU_LOONGSON2
1539 select CPU_SUPPORTS_32BIT_KERNEL
1540 select CPU_SUPPORTS_64BIT_KERNEL
1541 select CPU_SUPPORTS_HIGHMEM
1542 select CPU_SUPPORTS_HUGEPAGES
1544 config CPU_LOONGSON1
1548 select CPU_HAS_PREFETCH
1549 select CPU_SUPPORTS_32BIT_KERNEL
1550 select CPU_SUPPORTS_HIGHMEM
1555 select CPU_SUPPORTS_32BIT_KERNEL
1556 select DMA_NONCOHERENT
1558 select SWAP_IO_SPACE
1559 select WEAK_ORDERING
1561 config SYS_HAS_CPU_LOONGSON2E
1564 config SYS_HAS_CPU_LOONGSON2F
1566 select CPU_SUPPORTS_CPUFREQ
1567 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1568 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1570 config SYS_HAS_CPU_LOONGSON1B
1573 config SYS_HAS_CPU_MIPS32_R1
1576 config SYS_HAS_CPU_MIPS32_R2
1579 config SYS_HAS_CPU_MIPS64_R1
1582 config SYS_HAS_CPU_MIPS64_R2
1585 config SYS_HAS_CPU_R3000
1588 config SYS_HAS_CPU_TX39XX
1591 config SYS_HAS_CPU_VR41XX
1594 config SYS_HAS_CPU_R4300
1597 config SYS_HAS_CPU_R4X00
1600 config SYS_HAS_CPU_TX49XX
1603 config SYS_HAS_CPU_R5000
1606 config SYS_HAS_CPU_R5432
1609 config SYS_HAS_CPU_R5500
1612 config SYS_HAS_CPU_R6000
1615 config SYS_HAS_CPU_NEVADA
1618 config SYS_HAS_CPU_R8000
1621 config SYS_HAS_CPU_R10000
1624 config SYS_HAS_CPU_RM7000
1627 config SYS_HAS_CPU_SB1
1630 config SYS_HAS_CPU_CAVIUM_OCTEON
1633 config SYS_HAS_CPU_BMIPS3300
1636 config SYS_HAS_CPU_BMIPS4350
1639 config SYS_HAS_CPU_BMIPS4380
1642 config SYS_HAS_CPU_BMIPS5000
1645 config SYS_HAS_CPU_XLR
1648 config SYS_HAS_CPU_XLP
1652 # CPU may reorder R->R, R->W, W->R, W->W
1653 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1655 config WEAK_ORDERING
1659 # CPU may reorder reads and writes beyond LL/SC
1660 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1662 config WEAK_REORDERING_BEYOND_LLSC
1667 # These two indicate any level of the MIPS32 and MIPS64 architecture
1671 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1675 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1678 # These two indicate the revision of the architecture, either Release 1 or Release 2
1682 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1686 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1688 config SYS_SUPPORTS_32BIT_KERNEL
1690 config SYS_SUPPORTS_64BIT_KERNEL
1692 config CPU_SUPPORTS_32BIT_KERNEL
1694 config CPU_SUPPORTS_64BIT_KERNEL
1696 config CPU_SUPPORTS_CPUFREQ
1698 config CPU_SUPPORTS_ADDRWINCFG
1700 config CPU_SUPPORTS_HUGEPAGES
1702 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1704 config MIPS_PGD_C0_CONTEXT
1706 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1709 # Set to y for ptrace access to watch registers.
1711 config HARDWARE_WATCHPOINTS
1713 default y if CPU_MIPSR1 || CPU_MIPSR2
1718 prompt "Kernel code model"
1720 You should only select this option if you have a workload that
1721 actually benefits from 64-bit processing or if your machine has
1722 large memory. You will only be presented a single option in this
1723 menu if your system does not support both 32-bit and 64-bit kernels.
1726 bool "32-bit kernel"
1727 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1730 Select this option if you want to build a 32-bit kernel.
1732 bool "64-bit kernel"
1733 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1734 select HAVE_SYSCALL_WRAPPERS
1736 Select this option if you want to build a 64-bit kernel.
1741 prompt "Kernel page size"
1742 default PAGE_SIZE_4KB
1744 config PAGE_SIZE_4KB
1746 depends on !CPU_LOONGSON2
1748 This option select the standard 4kB Linux page size. On some
1749 R3000-family processors this is the only available page size. Using
1750 4kB page size will minimize memory consumption and is therefore
1751 recommended for low memory systems.
1753 config PAGE_SIZE_8KB
1755 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1757 Using 8kB page size will result in higher performance kernel at
1758 the price of higher memory consumption. This option is available
1759 only on R8000 and cnMIPS processors. Note that you will need a
1760 suitable Linux distribution to support this.
1762 config PAGE_SIZE_16KB
1764 depends on !CPU_R3000 && !CPU_TX39XX
1766 Using 16kB page size will result in higher performance kernel at
1767 the price of higher memory consumption. This option is available on
1768 all non-R3000 family processors. Note that you will need a suitable
1769 Linux distribution to support this.
1771 config PAGE_SIZE_32KB
1773 depends on CPU_CAVIUM_OCTEON
1775 Using 32kB page size will result in higher performance kernel at
1776 the price of higher memory consumption. This option is available
1777 only on cnMIPS cores. Note that you will need a suitable Linux
1778 distribution to support this.
1780 config PAGE_SIZE_64KB
1782 depends on !CPU_R3000 && !CPU_TX39XX
1784 Using 64kB page size will result in higher performance kernel at
1785 the price of higher memory consumption. This option is available on
1786 all non-R3000 family processor. Not that at the time of this
1787 writing this option is still high experimental.
1791 config FORCE_MAX_ZONEORDER
1792 int "Maximum zone order"
1793 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1794 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1795 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1796 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1797 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1798 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1802 The kernel memory allocator divides physically contiguous memory
1803 blocks into "zones", where each zone is a power of two number of
1804 pages. This option selects the largest power of two that the kernel
1805 keeps in the memory allocator. If you need to allocate very large
1806 blocks of physically contiguous memory, then you may need to
1807 increase this value.
1809 This config option is actually maximum order plus one. For example,
1810 a value of 11 means that the largest free memory block is 2^10 pages.
1812 The page size is not necessarily 4KB. Keep this in mind
1813 when choosing a value for this option.
1818 config IP22_CPU_SCACHE
1823 # Support for a MIPS32 / MIPS64 style S-caches
1825 config MIPS_CPU_SCACHE
1829 config R5000_CPU_SCACHE
1833 config RM7000_CPU_SCACHE
1837 config SIBYTE_DMA_PAGEOPS
1838 bool "Use DMA to clear/copy pages"
1841 Instead of using the CPU to zero and copy pages, use a Data Mover
1842 channel. These DMA channels are otherwise unused by the standard
1843 SiByte Linux port. Seems to give a small performance benefit.
1845 config CPU_HAS_PREFETCH
1848 config CPU_GENERIC_DUMP_TLB
1850 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1854 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1856 config CPU_R4K_CACHE_TLB
1858 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1861 prompt "MIPS MT options"
1863 config MIPS_MT_DISABLED
1864 bool "Disable multithreading support."
1866 Use this option if your workload can't take advantage of
1867 MIPS hardware multithreading support. On systems that don't have
1868 the option of an MT-enabled processor this option will be the only
1869 option in this menu.
1872 bool "Use 1 TC on each available VPE for SMP"
1873 depends on SYS_SUPPORTS_MULTITHREADING
1874 select CPU_MIPSR2_IRQ_VI
1875 select CPU_MIPSR2_IRQ_EI
1877 select NR_CPUS_DEFAULT_2
1879 select SYS_SUPPORTS_SCHED_SMT if SMP
1880 select SYS_SUPPORTS_SMP
1882 select MIPS_PERF_SHARED_TC_COUNTERS
1884 This is a kernel model which is known a VSMP but lately has been
1885 marketesed into SMVP.
1886 Virtual SMP uses the processor's VPEs to implement virtual
1887 processors. In currently available configuration of the 34K processor
1888 this allows for a dual processor. Both processors will share the same
1889 primary caches; each will obtain the half of the TLB for it's own
1890 exclusive use. For a layman this model can be described as similar to
1891 what Intel calls Hyperthreading.
1893 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1896 bool "SMTC: Use all TCs on all VPEs for SMP"
1897 depends on CPU_MIPS32_R2
1898 #depends on CPU_MIPS64_R2 # once there is hardware ...
1899 depends on SYS_SUPPORTS_MULTITHREADING
1900 select CPU_MIPSR2_IRQ_VI
1901 select CPU_MIPSR2_IRQ_EI
1903 select NR_CPUS_DEFAULT_8
1905 select SYS_SUPPORTS_SMP
1908 This is a kernel model which is known a SMTC or lately has been
1909 marketesed into SMVP.
1910 is presenting the available TC's of the core as processors to Linux.
1911 On currently available 34K processors this means a Linux system will
1912 see up to 5 processors. The implementation of the SMTC kernel differs
1913 significantly from VSMP and cannot efficiently coexist in the same
1914 kernel binary so the choice between VSMP and SMTC is a compile time
1917 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1925 bool "SMT (multithreading) scheduler support"
1926 depends on SYS_SUPPORTS_SCHED_SMT
1929 SMT scheduler support improves the CPU scheduler's decision making
1930 when dealing with MIPS MT enabled cores at a cost of slightly
1931 increased overhead in some places. If unsure say N here.
1933 config SYS_SUPPORTS_SCHED_SMT
1936 config SYS_SUPPORTS_MULTITHREADING
1939 config MIPS_MT_FPAFF
1940 bool "Dynamic FPU affinity for FP-intensive threads"
1942 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1944 config MIPS_VPE_LOADER
1945 bool "VPE loader support."
1946 depends on SYS_SUPPORTS_MULTITHREADING
1947 select CPU_MIPSR2_IRQ_VI
1948 select CPU_MIPSR2_IRQ_EI
1951 Includes a loader for loading an elf relocatable object
1952 onto another VPE and running it.
1954 config MIPS_MT_SMTC_IM_BACKSTOP
1955 bool "Use per-TC register bits as backstop for inhibited IM bits"
1956 depends on MIPS_MT_SMTC
1959 To support multiple TC microthreads acting as "CPUs" within
1960 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1961 during interrupt handling. To support legacy drivers and interrupt
1962 controller management code, SMTC has a "backstop" to track and
1963 if necessary restore the interrupt mask. This has some performance
1964 impact on interrupt service overhead.
1966 config MIPS_MT_SMTC_IRQAFF
1967 bool "Support IRQ affinity API"
1968 depends on MIPS_MT_SMTC
1971 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1972 for SMTC Linux kernel. Requires platform support, of which
1973 an example can be found in the MIPS kernel i8259 and Malta
1974 platform code. Adds some overhead to interrupt dispatch, and
1975 should be used only if you know what you are doing.
1977 config MIPS_VPE_LOADER_TOM
1978 bool "Load VPE program into memory hidden from linux"
1979 depends on MIPS_VPE_LOADER
1982 The loader can use memory that is present but has been hidden from
1983 Linux using the kernel command line option "mem=xxMB". It's up to
1984 you to ensure the amount you put in the option and the space your
1985 program requires is less or equal to the amount physically present.
1987 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1988 config MIPS_VPE_APSP_API
1989 bool "Enable support for AP/SP API (RTLX)"
1990 depends on MIPS_VPE_LOADER
1994 bool "MIPS CMP framework support"
1995 depends on SYS_SUPPORTS_MIPS_CMP
1997 select SYS_SUPPORTS_SMP
1998 select SYS_SUPPORTS_SCHED_SMT if SMP
1999 select WEAK_ORDERING
2002 This is a placeholder option for the GCMP work. It will need to
2003 be handled differently...
2005 config SB1_PASS_1_WORKAROUNDS
2007 depends on CPU_SB1_PASS_1
2010 config SB1_PASS_2_WORKAROUNDS
2012 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2015 config SB1_PASS_2_1_WORKAROUNDS
2017 depends on CPU_SB1 && CPU_SB1_PASS_2
2020 config 64BIT_PHYS_ADDR
2023 config ARCH_PHYS_ADDR_T_64BIT
2024 def_bool 64BIT_PHYS_ADDR
2026 config CPU_HAS_SMARTMIPS
2027 depends on SYS_SUPPORTS_SMARTMIPS
2028 bool "Support for the SmartMIPS ASE"
2030 SmartMIPS is a extension of the MIPS32 architecture aimed at
2031 increased security at both hardware and software level for
2032 smartcards. Enabling this option will allow proper use of the
2033 SmartMIPS instructions by Linux applications. However a kernel with
2034 this option will not work on a MIPS core without SmartMIPS core. If
2035 you don't know you probably don't have SmartMIPS and should say N
2045 # Vectored interrupt mode is an R2 feature
2047 config CPU_MIPSR2_IRQ_VI
2051 # Extended interrupt mode is an R2 feature
2053 config CPU_MIPSR2_IRQ_EI
2058 depends on !CPU_R3000
2064 config CPU_DADDI_WORKAROUNDS
2067 config CPU_R4000_WORKAROUNDS
2069 select CPU_R4400_WORKAROUNDS
2071 config CPU_R4400_WORKAROUNDS
2075 # - Highmem only makes sense for the 32-bit kernel.
2076 # - The current highmem code will only work properly on physically indexed
2077 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2078 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2079 # moment we protect the user and offer the highmem option only on machines
2080 # where it's known to be safe. This will not offer highmem on a few systems
2081 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2082 # indexed CPUs but we're playing safe.
2083 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2084 # know they might have memory configurations that could make use of highmem
2088 bool "High Memory Support"
2089 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2091 config CPU_SUPPORTS_HIGHMEM
2094 config SYS_SUPPORTS_HIGHMEM
2097 config SYS_SUPPORTS_SMARTMIPS
2100 config ARCH_FLATMEM_ENABLE
2102 depends on !NUMA && !CPU_LOONGSON2
2104 config ARCH_DISCONTIGMEM_ENABLE
2106 default y if SGI_IP27
2108 Say Y to support efficient handling of discontiguous physical memory,
2109 for architectures which are either NUMA (Non-Uniform Memory Access)
2110 or have huge holes in the physical address space for other reasons.
2111 See <file:Documentation/vm/numa> for more.
2113 config ARCH_SPARSEMEM_ENABLE
2115 select SPARSEMEM_STATIC
2119 depends on SYS_SUPPORTS_NUMA
2121 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2122 Access). This option improves performance on systems with more
2123 than two nodes; on two node systems it is generally better to
2124 leave it disabled; on single node systems disable this option
2127 config SYS_SUPPORTS_NUMA
2133 depends on NEED_MULTIPLE_NODES
2135 config HW_PERF_EVENTS
2136 bool "Enable hardware performance counter support for perf events"
2137 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2140 Enable hardware performance counter support for perf events. If
2141 disabled, perf events will use software events only.
2146 bool "Multi-Processing support"
2147 depends on SYS_SUPPORTS_SMP
2148 select USE_GENERIC_SMP_HELPERS
2150 This enables support for systems with more than one CPU. If you have
2151 a system with only one CPU, like most personal computers, say N. If
2152 you have a system with more than one CPU, say Y.
2154 If you say N here, the kernel will run on single and multiprocessor
2155 machines, but will use only one CPU of a multiprocessor machine. If
2156 you say Y here, the kernel will run on many, but not all,
2157 singleprocessor machines. On a singleprocessor machine, the kernel
2158 will run faster if you say N here.
2160 People using multiprocessor machines who say Y here should also say
2161 Y to "Enhanced Real Time Clock Support", below.
2163 See also the SMP-HOWTO available at
2164 <http://www.tldp.org/docs.html#howto>.
2166 If you don't know what to do here, say N.
2171 config SYS_SUPPORTS_MIPS_CMP
2174 config SYS_SUPPORTS_SMP
2177 config NR_CPUS_DEFAULT_1
2180 config NR_CPUS_DEFAULT_2
2183 config NR_CPUS_DEFAULT_4
2186 config NR_CPUS_DEFAULT_8
2189 config NR_CPUS_DEFAULT_16
2192 config NR_CPUS_DEFAULT_32
2195 config NR_CPUS_DEFAULT_64
2199 int "Maximum number of CPUs (2-64)"
2200 range 1 64 if NR_CPUS_DEFAULT_1
2202 default "1" if NR_CPUS_DEFAULT_1
2203 default "2" if NR_CPUS_DEFAULT_2
2204 default "4" if NR_CPUS_DEFAULT_4
2205 default "8" if NR_CPUS_DEFAULT_8
2206 default "16" if NR_CPUS_DEFAULT_16
2207 default "32" if NR_CPUS_DEFAULT_32
2208 default "64" if NR_CPUS_DEFAULT_64
2210 This allows you to specify the maximum number of CPUs which this
2211 kernel will support. The maximum supported value is 32 for 32-bit
2212 kernel and 64 for 64-bit kernels; the minimum value which makes
2213 sense is 1 for Qemu (useful only for kernel debugging purposes)
2214 and 2 for all others.
2216 This is purely to save memory - each supported CPU adds
2217 approximately eight kilobytes to the kernel image. For best
2218 performance should round up your number of processors to the next
2221 config MIPS_PERF_SHARED_TC_COUNTERS
2225 # Timer Interrupt Frequency Configuration
2229 prompt "Timer frequency"
2232 Allows the configuration of the timer frequency.
2235 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2238 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2241 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2244 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2247 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2250 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2257 config SYS_SUPPORTS_48HZ
2260 config SYS_SUPPORTS_100HZ
2263 config SYS_SUPPORTS_128HZ
2266 config SYS_SUPPORTS_250HZ
2269 config SYS_SUPPORTS_256HZ
2272 config SYS_SUPPORTS_1000HZ
2275 config SYS_SUPPORTS_1024HZ
2278 config SYS_SUPPORTS_ARBIT_HZ
2280 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2281 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2282 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2283 !SYS_SUPPORTS_1024HZ
2288 default 100 if HZ_100
2289 default 128 if HZ_128
2290 default 250 if HZ_250
2291 default 256 if HZ_256
2292 default 1000 if HZ_1000
2293 default 1024 if HZ_1024
2295 source "kernel/Kconfig.preempt"
2298 bool "Kexec system call"
2300 kexec is a system call that implements the ability to shutdown your
2301 current kernel, and to start another kernel. It is like a reboot
2302 but it is independent of the system firmware. And like a reboot
2303 you can start any kernel with it, not just Linux.
2305 The name comes from the similarity to the exec system call.
2307 It is an ongoing process to be certain the hardware in a machine
2308 is properly shutdown, so do not be surprised if this code does not
2309 initially work for you. It may help to enable device hotplugging
2310 support. As of this writing the exact hardware interface is
2311 strongly in flux, so no good recommendation can be made.
2314 bool "Kernel crash dumps"
2316 Generate crash dump after being started by kexec.
2317 This should be normally only set in special crash dump kernels
2318 which are loaded in the main kernel with kexec-tools into
2319 a specially reserved region and then later executed after
2320 a crash by kdump/kexec. The crash dump kernel must be compiled
2321 to a memory address not used by the main kernel or firmware using
2324 config PHYSICAL_START
2325 hex "Physical address where the kernel is loaded"
2326 default "0xffffffff84000000" if 64BIT
2327 default "0x84000000" if 32BIT
2328 depends on CRASH_DUMP
2330 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2331 If you plan to use kernel for capturing the crash dump change
2332 this value to start of the reserved region (the "X" value as
2333 specified in the "crashkernel=YM@XM" command line boot parameter
2334 passed to the panic-ed kernel).
2337 bool "Enable seccomp to safely compute untrusted bytecode"
2341 This kernel feature is useful for number crunching applications
2342 that may need to compute untrusted bytecode during their
2343 execution. By using pipes or other transports made available to
2344 the process as file descriptors supporting the read/write
2345 syscalls, it's possible to isolate those applications in
2346 their own address space using seccomp. Once seccomp is
2347 enabled via /proc/<pid>/seccomp, it cannot be disabled
2348 and the task is only allowed to execute a few safe syscalls
2349 defined by each seccomp mode.
2351 If unsure, say Y. Only embedded should say N here.
2356 select OF_EARLY_FLATTREE
2361 config LOCKDEP_SUPPORT
2365 config STACKTRACE_SUPPORT
2369 source "init/Kconfig"
2371 source "kernel/Kconfig.freezer"
2373 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2381 bool "Support for PCI controller"
2382 depends on HW_HAS_PCI
2384 select GENERIC_PCI_IOMAP
2385 select NO_GENERIC_PCI_IOPORT_MAP
2387 Find out whether you have a PCI motherboard. PCI is the name of a
2388 bus system, i.e. the way the CPU talks to the other stuff inside
2389 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2395 source "drivers/pci/Kconfig"
2397 source "drivers/pci/pcie/Kconfig"
2400 # ISA support is now enabled via select. Too many systems still have the one
2401 # or other ISA chip on the board that users don't know about so don't expect
2402 # users to choose the right thing ...
2409 depends on HW_HAS_EISA
2411 select GENERIC_ISA_DMA
2413 The Extended Industry Standard Architecture (EISA) bus was
2414 developed as an open alternative to the IBM MicroChannel bus.
2416 The EISA bus provided some of the features of the IBM MicroChannel
2417 bus while maintaining backward compatibility with cards made for
2418 the older ISA bus. The EISA bus saw limited use between 1988 and
2419 1995 when it was made obsolete by the PCI bus.
2421 Say Y here if you are building a kernel for an EISA-based machine.
2425 source "drivers/eisa/Kconfig"
2428 bool "TURBOchannel support"
2429 depends on MACH_DECSTATION
2431 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2432 processors. TURBOchannel programming specifications are available
2434 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2436 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2437 Linux driver support status is documented at:
2438 <http://www.linux-mips.org/wiki/DECstation>
2448 select MIPS_EXTERNAL_TIMER
2453 source "drivers/pcmcia/Kconfig"
2455 source "drivers/pci/hotplug/Kconfig"
2458 bool "RapidIO support"
2462 If you say Y here, the kernel will include drivers and
2463 infrastructure code to support RapidIO interconnect devices.
2465 source "drivers/rapidio/Kconfig"
2469 menu "Executable file formats"
2471 source "fs/Kconfig.binfmt"
2476 config MIPS32_COMPAT
2477 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2480 Select this option if you want Linux/MIPS 32-bit binary
2481 compatibility. Since all software available for Linux/MIPS is
2482 currently 32-bit you should say Y here.
2486 depends on MIPS32_COMPAT
2487 select ARCH_WANT_OLD_COMPAT_IPC
2490 config SYSVIPC_COMPAT
2492 depends on COMPAT && SYSVIPC
2496 bool "Kernel support for o32 binaries"
2497 depends on MIPS32_COMPAT
2499 Select this option if you want to run o32 binaries. These are pure
2500 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2501 existing binaries are in this format.
2506 bool "Kernel support for n32 binaries"
2507 depends on MIPS32_COMPAT
2509 Select this option if you want to run n32 binaries. These are
2510 64-bit binaries using 32-bit quantities for addressing and certain
2511 data that would normally be 64-bit. They are used in special
2518 default y if MIPS32_O32 || MIPS32_N32
2522 menu "Power management options"
2524 config ARCH_HIBERNATION_POSSIBLE
2526 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2528 config ARCH_SUSPEND_POSSIBLE
2530 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2532 source "kernel/power/Kconfig"
2536 source "arch/mips/kernel/cpufreq/Kconfig"
2538 source "net/Kconfig"
2540 source "drivers/Kconfig"
2542 source "drivers/firmware/Kconfig"
2546 source "arch/mips/Kconfig.debug"
2548 source "security/Kconfig"
2550 source "crypto/Kconfig"
2552 source "lib/Kconfig"