4 select HAVE_GENERIC_DMA_COHERENT
8 select HAVE_PERF_EVENTS
9 select PERF_USE_VMALLOC
11 select ARCH_HAVE_CUSTOM_GPIO_H
12 select HAVE_FUNCTION_TRACER
13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
14 select HAVE_DYNAMIC_FTRACE
15 select HAVE_FTRACE_MCOUNT_RECORD
16 select HAVE_C_RECORDMCOUNT
17 select HAVE_FUNCTION_GRAPH_TRACER
19 select HAVE_KRETPROBES
20 select HAVE_DEBUG_KMEMLEAK
21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
22 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
23 select RTC_LIB if !MACH_LOONGSON
24 select GENERIC_ATOMIC64 if !64BIT
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
27 select HAVE_DMA_API_DEBUG
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_PROBE
30 select GENERIC_IRQ_SHOW
31 select HAVE_ARCH_JUMP_LABEL
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select IRQ_FORCED_THREADING
35 select HAVE_MEMBLOCK_NODE_MAP
36 select ARCH_DISCARD_MEMBLOCK
37 select GENERIC_SMP_IDLE_THREAD
38 select BUILDTIME_EXTABLE_SORT
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_CMOS_UPDATE
41 select HAVE_MOD_ARCH_SPECIFIC
42 select MODULES_USE_ELF_REL
43 select MODULES_USE_ELF_RELA if 64BIT
45 menu "Machine selection"
55 bool "Alchemy processor based machines"
56 select 64BIT_PHYS_ADDR
60 select SYS_HAS_CPU_MIPS32_R1
61 select SYS_SUPPORTS_32BIT_KERNEL
62 select SYS_SUPPORTS_APM_EMULATION
64 select ARCH_WANT_OPTIONAL_GPIOLIB
65 select SYS_SUPPORTS_ZBOOT
66 select USB_ARCH_HAS_OHCI
67 select USB_ARCH_HAS_EHCI
70 bool "Texas Instruments AR7"
72 select DMA_NONCOHERENT
78 select SYS_HAS_CPU_MIPS32_R1
79 select SYS_HAS_EARLY_PRINTK
80 select SYS_SUPPORTS_32BIT_KERNEL
81 select SYS_SUPPORTS_LITTLE_ENDIAN
82 select SYS_SUPPORTS_ZBOOT_UART16550
83 select ARCH_REQUIRE_GPIOLIB
87 Support for the Texas Instruments AR7 System-on-a-Chip
88 family: TNETD7100, 7200 and 7300.
91 bool "Atheros AR71XX/AR724X/AR913X based boards"
92 select ARCH_REQUIRE_GPIOLIB
96 select DMA_NONCOHERENT
100 select SYS_HAS_CPU_MIPS32_R2
101 select SYS_HAS_EARLY_PRINTK
102 select SYS_SUPPORTS_32BIT_KERNEL
103 select SYS_SUPPORTS_BIG_ENDIAN
105 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
108 bool "Broadcom BCM47XX based boards"
111 select DMA_NONCOHERENT
114 select SYS_SUPPORTS_32BIT_KERNEL
115 select SYS_SUPPORTS_LITTLE_ENDIAN
117 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 if EXPERIMENTAL
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 if EXPERIMENTAL
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
226 select ARCH_REQUIRE_GPIOLIB
227 select SYS_HAS_EARLY_PRINTK
230 select GENERIC_IRQ_CHIP
233 bool "Lantiq based platforms"
234 select DMA_NONCOHERENT
238 select SYS_HAS_CPU_MIPS32_R1
239 select SYS_HAS_CPU_MIPS32_R2
240 select SYS_SUPPORTS_BIG_ENDIAN
241 select SYS_SUPPORTS_32BIT_KERNEL
242 select SYS_SUPPORTS_MULTITHREADING
243 select SYS_HAS_EARLY_PRINTK
244 select ARCH_REQUIRE_GPIOLIB
247 select HAVE_MACH_CLKDEV
251 select PINCTRL_LANTIQ
254 bool "LASAT Networks platforms"
257 select DMA_NONCOHERENT
258 select SYS_HAS_EARLY_PRINTK
261 select PCI_GT64XXX_PCI0
263 select R5000_CPU_SCACHE
264 select SYS_HAS_CPU_R5000
265 select SYS_SUPPORTS_32BIT_KERNEL
266 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
267 select SYS_SUPPORTS_LITTLE_ENDIAN
270 bool "Loongson family of machines"
271 select SYS_SUPPORTS_ZBOOT
273 This enables the support of Loongson family of machines.
275 Loongson is a family of general-purpose MIPS-compatible CPUs.
276 developed at Institute of Computing Technology (ICT),
277 Chinese Academy of Sciences (CAS) in the People's Republic
278 of China. The chief architect is Professor Weiwu Hu.
280 config MACH_LOONGSON1
281 bool "Loongson 1 family of machines"
282 select SYS_SUPPORTS_ZBOOT
284 This enables support for the Loongson 1 based machines.
286 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
287 the ICT (Institute of Computing Technology) and the Chinese Academy
291 bool "MIPS Malta board"
292 select ARCH_MAY_HAVE_PC_FDC
297 select DMA_NONCOHERENT
298 select GENERIC_ISA_DMA
299 select HAVE_PCSPKR_PLATFORM
305 select MIPS_BOARDS_GEN
307 select MIPS_CPU_SCACHE
308 select PCI_GT64XXX_PCI0
311 select SYS_HAS_CPU_MIPS32_R1
312 select SYS_HAS_CPU_MIPS32_R2
313 select SYS_HAS_CPU_MIPS64_R1
314 select SYS_HAS_CPU_MIPS64_R2
315 select SYS_HAS_CPU_NEVADA
316 select SYS_HAS_CPU_RM7000
317 select SYS_HAS_EARLY_PRINTK
318 select SYS_SUPPORTS_32BIT_KERNEL
319 select SYS_SUPPORTS_64BIT_KERNEL
320 select SYS_SUPPORTS_BIG_ENDIAN
321 select SYS_SUPPORTS_LITTLE_ENDIAN
322 select SYS_SUPPORTS_MIPS_CMP
323 select SYS_SUPPORTS_MULTITHREADING
324 select SYS_SUPPORTS_SMARTMIPS
325 select SYS_SUPPORTS_ZBOOT
327 This enables support for the MIPS Technologies Malta evaluation
331 bool "MIPS SEAD3 board"
336 select CPU_MIPSR2_IRQ_VI
337 select CPU_MIPSR2_IRQ_EI
338 select DMA_NONCOHERENT
341 select MIPS_BOARDS_GEN
342 select MIPS_CPU_SCACHE
344 select SYS_HAS_CPU_MIPS32_R1
345 select SYS_HAS_CPU_MIPS32_R2
346 select SYS_HAS_CPU_MIPS64_R1
347 select SYS_HAS_EARLY_PRINTK
348 select SYS_SUPPORTS_32BIT_KERNEL
349 select SYS_SUPPORTS_64BIT_KERNEL
350 select SYS_SUPPORTS_BIG_ENDIAN
351 select SYS_SUPPORTS_LITTLE_ENDIAN
352 select SYS_SUPPORTS_SMARTMIPS
353 select USB_ARCH_HAS_EHCI
354 select USB_EHCI_BIG_ENDIAN_DESC
355 select USB_EHCI_BIG_ENDIAN_MMIO
357 This enables support for the MIPS Technologies SEAD3 evaluation
361 bool "NEC EMMA2RH Mark-eins board"
365 This enables support for the NEC Electronics Mark-eins boards.
368 bool "NEC VR4100 series based machines"
371 select SYS_HAS_CPU_VR41XX
372 select ARCH_REQUIRE_GPIOLIB
375 bool "NXP STB220 board"
378 Support for NXP Semiconductors STB220 Development Board.
385 Support for NXP Semiconductors STB225 Development Board.
388 bool "NXP PNX8550 based JBS board"
390 select SYS_SUPPORTS_LITTLE_ENDIAN
392 config PNX8550_STB810
393 bool "NXP PNX8550 based STB810 board"
395 select SYS_SUPPORTS_LITTLE_ENDIAN
398 bool "PMC-Sierra MSP chipsets"
399 depends on EXPERIMENTAL
402 select DMA_NONCOHERENT
404 select NO_EXCEPT_FILL
406 select SYS_HAS_CPU_MIPS32_R1
407 select SYS_HAS_CPU_MIPS32_R2
408 select SYS_SUPPORTS_32BIT_KERNEL
409 select SYS_SUPPORTS_BIG_ENDIAN
412 select SERIAL_8250_CONSOLE
414 This adds support for the PMC-Sierra family of Multi-Service
415 Processor System-On-A-Chips. These parts include a number
416 of integrated peripherals, interfaces and DSPs in addition to
417 a variety of MIPS cores.
420 bool "PMC-Sierra Yosemite eval board"
429 select SYS_HAS_CPU_RM9000
430 select SYS_HAS_EARLY_PRINTK
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_64BIT_KERNEL
433 select SYS_SUPPORTS_BIG_ENDIAN
434 select SYS_SUPPORTS_HIGHMEM
435 select SYS_SUPPORTS_SMP
437 Yosemite is an evaluation board for the RM9000x2 processor
438 manufactured by PMC-Sierra.
444 select CPU_MIPSR2_IRQ_VI
445 select CPU_MIPSR2_IRQ_EI
447 select DMA_NONCOHERENT
449 select SYS_HAS_EARLY_PRINTK
450 select SYS_HAS_CPU_MIPS32_R2
451 select SYS_SUPPORTS_32BIT_KERNEL
452 select SYS_SUPPORTS_BIG_ENDIAN
453 select SYS_SUPPORTS_HIGHMEM
454 select USB_OHCI_LITTLE_ENDIAN
456 This enables support for the Cisco PowerTV Platform.
459 bool "SGI IP22 (Indy/Indigo2)"
465 select DEFAULT_SGI_PARTITION
466 select DMA_NONCOHERENT
470 select IP22_CPU_SCACHE
472 select GENERIC_ISA_DMA_SUPPORT_BROKEN
474 select SGI_HAS_INDYDOG
480 select SYS_HAS_CPU_R4X00
481 select SYS_HAS_CPU_R5000
483 # Disable EARLY_PRINTK for now since it leads to overwritten prom
484 # memory during early boot on some machines.
486 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
487 # for a more details discussion
489 # select SYS_HAS_EARLY_PRINTK
490 select SYS_SUPPORTS_32BIT_KERNEL
491 select SYS_SUPPORTS_64BIT_KERNEL
492 select SYS_SUPPORTS_BIG_ENDIAN
494 This are the SGI Indy, Challenge S and Indigo2, as well as certain
495 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
496 that runs on these, say Y here.
499 bool "SGI IP27 (Origin200/2000)"
503 select DEFAULT_SGI_PARTITION
505 select SYS_HAS_EARLY_PRINTK
507 select NR_CPUS_DEFAULT_64
508 select SYS_HAS_CPU_R10000
509 select SYS_SUPPORTS_64BIT_KERNEL
510 select SYS_SUPPORTS_BIG_ENDIAN
511 select SYS_SUPPORTS_NUMA
512 select SYS_SUPPORTS_SMP
514 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
515 workstations. To compile a Linux kernel that runs on these, say Y
519 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
520 depends on EXPERIMENTAL
526 select DEFAULT_SGI_PARTITION
527 select DMA_NONCOHERENT
528 select GENERIC_ISA_DMA_SUPPORT_BROKEN
534 select SGI_HAS_INDYDOG
540 select SYS_HAS_CPU_R10000
542 # Disable EARLY_PRINTK for now since it leads to overwritten prom
543 # memory during early boot on some machines.
545 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
546 # for a more details discussion
548 # select SYS_HAS_EARLY_PRINTK
549 select SYS_SUPPORTS_64BIT_KERNEL
550 select SYS_SUPPORTS_BIG_ENDIAN
552 This is the SGI Indigo2 with R10000 processor. To compile a Linux
553 kernel that runs on these, say Y here.
562 select DMA_NONCOHERENT
565 select R5000_CPU_SCACHE
566 select RM7000_CPU_SCACHE
567 select SYS_HAS_CPU_R5000
568 select SYS_HAS_CPU_R10000 if BROKEN
569 select SYS_HAS_CPU_RM7000
570 select SYS_HAS_CPU_NEVADA
571 select SYS_SUPPORTS_64BIT_KERNEL
572 select SYS_SUPPORTS_BIG_ENDIAN
574 If you want this kernel to run on SGI O2 workstation, say Y here.
577 bool "Sibyte BCM91120C-CRhine"
578 depends on EXPERIMENTAL
581 select SIBYTE_BCM1120
583 select SYS_HAS_CPU_SB1
584 select SYS_SUPPORTS_BIG_ENDIAN
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "Sibyte BCM91120x-Carmel"
589 depends on EXPERIMENTAL
592 select SIBYTE_BCM1120
594 select SYS_HAS_CPU_SB1
595 select SYS_SUPPORTS_BIG_ENDIAN
596 select SYS_SUPPORTS_LITTLE_ENDIAN
599 bool "Sibyte BCM91125C-CRhone"
600 depends on EXPERIMENTAL
603 select SIBYTE_BCM1125
605 select SYS_HAS_CPU_SB1
606 select SYS_SUPPORTS_BIG_ENDIAN
607 select SYS_SUPPORTS_HIGHMEM
608 select SYS_SUPPORTS_LITTLE_ENDIAN
611 bool "Sibyte BCM91125E-Rhone"
612 depends on EXPERIMENTAL
615 select SIBYTE_BCM1125H
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_LITTLE_ENDIAN
622 bool "Sibyte BCM91250A-SWARM"
625 select HAVE_PATA_PLATFORM
626 select NR_CPUS_DEFAULT_2
629 select SYS_HAS_CPU_SB1
630 select SYS_SUPPORTS_BIG_ENDIAN
631 select SYS_SUPPORTS_HIGHMEM
632 select SYS_SUPPORTS_LITTLE_ENDIAN
633 select ZONE_DMA32 if 64BIT
635 config SIBYTE_LITTLESUR
636 bool "Sibyte BCM91250C2-LittleSur"
637 depends on EXPERIMENTAL
640 select HAVE_PATA_PLATFORM
641 select NR_CPUS_DEFAULT_2
644 select SYS_HAS_CPU_SB1
645 select SYS_SUPPORTS_BIG_ENDIAN
646 select SYS_SUPPORTS_HIGHMEM
647 select SYS_SUPPORTS_LITTLE_ENDIAN
649 config SIBYTE_SENTOSA
650 bool "Sibyte BCM91250E-Sentosa"
651 depends on EXPERIMENTAL
654 select NR_CPUS_DEFAULT_2
657 select SYS_HAS_CPU_SB1
658 select SYS_SUPPORTS_BIG_ENDIAN
659 select SYS_SUPPORTS_LITTLE_ENDIAN
662 bool "Sibyte BCM91480B-BigSur"
665 select NR_CPUS_DEFAULT_4
666 select SIBYTE_BCM1x80
668 select SYS_HAS_CPU_SB1
669 select SYS_SUPPORTS_BIG_ENDIAN
670 select SYS_SUPPORTS_HIGHMEM
671 select SYS_SUPPORTS_LITTLE_ENDIAN
672 select ZONE_DMA32 if 64BIT
675 bool "SNI RM200/300/400"
676 select ARC if CPU_LITTLE_ENDIAN
677 select ARC32 if CPU_LITTLE_ENDIAN
678 select SNIPROM if CPU_BIG_ENDIAN
679 select ARCH_MAY_HAVE_PC_FDC
683 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
684 select DMA_NONCOHERENT
685 select GENERIC_ISA_DMA
686 select HAVE_PCSPKR_PLATFORM
693 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
694 select SYS_HAS_CPU_R4X00
695 select SYS_HAS_CPU_R5000
696 select SYS_HAS_CPU_R10000
697 select R5000_CPU_SCACHE
698 select SYS_HAS_EARLY_PRINTK
699 select SYS_SUPPORTS_32BIT_KERNEL
700 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
701 select SYS_SUPPORTS_BIG_ENDIAN
702 select SYS_SUPPORTS_HIGHMEM
703 select SYS_SUPPORTS_LITTLE_ENDIAN
705 The SNI RM200/300/400 are MIPS-based machines manufactured by
706 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
707 Technology and now in turn merged with Fujitsu. Say Y here to
708 support this machine type.
711 bool "Toshiba TX39 series based machines"
714 bool "Toshiba TX49 series based machines"
716 config MIKROTIK_RB532
717 bool "Mikrotik RB532 boards"
720 select DMA_NONCOHERENT
723 select SYS_HAS_CPU_MIPS32_R1
724 select SYS_SUPPORTS_32BIT_KERNEL
725 select SYS_SUPPORTS_LITTLE_ENDIAN
728 select ARCH_REQUIRE_GPIOLIB
730 Support the Mikrotik(tm) RouterBoard 532 series,
731 based on the IDT RC32434 SoC.
734 bool "Wind River PPMC board"
739 select DMA_NONCOHERENT
741 select PCI_GT64XXX_PCI0
743 select SYS_HAS_CPU_MIPS32_R1
744 select SYS_HAS_CPU_MIPS32_R2
745 select SYS_HAS_CPU_MIPS64_R1
746 select SYS_HAS_CPU_NEVADA
747 select SYS_HAS_CPU_RM7000
748 select SYS_SUPPORTS_32BIT_KERNEL
749 select SYS_SUPPORTS_64BIT_KERNEL
750 select SYS_SUPPORTS_BIG_ENDIAN
751 select SYS_SUPPORTS_LITTLE_ENDIAN
753 This enables support for the Wind River MIPS32 4KC PPMC evaluation
754 board, which is based on GT64120 bridge chip.
756 config CAVIUM_OCTEON_SIMULATOR
757 bool "Cavium Networks Octeon Simulator"
759 select 64BIT_PHYS_ADDR
761 select SYS_SUPPORTS_64BIT_KERNEL
762 select SYS_SUPPORTS_BIG_ENDIAN
763 select SYS_SUPPORTS_HOTPLUG_CPU
764 select SYS_HAS_CPU_CAVIUM_OCTEON
767 The Octeon simulator is software performance model of the Cavium
768 Octeon Processor. It supports simulating Octeon processors on x86
771 config CAVIUM_OCTEON_REFERENCE_BOARD
772 bool "Cavium Networks Octeon reference board"
774 select 64BIT_PHYS_ADDR
776 select SYS_SUPPORTS_64BIT_KERNEL
777 select SYS_SUPPORTS_BIG_ENDIAN
779 select SYS_SUPPORTS_HOTPLUG_CPU
780 select SYS_HAS_EARLY_PRINTK
781 select SYS_HAS_CPU_CAVIUM_OCTEON
784 select ARCH_SUPPORTS_MSI
786 select USB_ARCH_HAS_OHCI
787 select USB_ARCH_HAS_EHCI
790 This option supports all of the Octeon reference boards from Cavium
791 Networks. It builds a kernel that dynamically determines the Octeon
792 CPU type and supports all known board reference implementations.
793 Some of the supported boards are:
800 Say Y here for most Octeon reference boards.
803 bool "Netlogic XLR/XLS based systems"
804 depends on EXPERIMENTAL
807 select SYS_HAS_CPU_XLR
808 select SYS_SUPPORTS_SMP
811 select SYS_SUPPORTS_32BIT_KERNEL
812 select SYS_SUPPORTS_64BIT_KERNEL
813 select 64BIT_PHYS_ADDR
814 select SYS_SUPPORTS_BIG_ENDIAN
815 select SYS_SUPPORTS_HIGHMEM
817 select NR_CPUS_DEFAULT_32
821 select ARCH_SUPPORTS_MSI
822 select ZONE_DMA if 64BIT
824 select SYS_HAS_EARLY_PRINTK
825 select USB_ARCH_HAS_OHCI if USB_SUPPORT
826 select USB_ARCH_HAS_EHCI if USB_SUPPORT
828 Support for systems based on Netlogic XLR and XLS processors.
829 Say Y here if you have a XLR or XLS based board.
832 bool "Netlogic XLP based systems"
833 depends on EXPERIMENTAL
836 select SYS_HAS_CPU_XLP
837 select SYS_SUPPORTS_SMP
839 select SYS_SUPPORTS_32BIT_KERNEL
840 select SYS_SUPPORTS_64BIT_KERNEL
841 select 64BIT_PHYS_ADDR
842 select SYS_SUPPORTS_BIG_ENDIAN
843 select SYS_SUPPORTS_LITTLE_ENDIAN
844 select SYS_SUPPORTS_HIGHMEM
846 select NR_CPUS_DEFAULT_32
850 select ZONE_DMA if 64BIT
852 select SYS_HAS_EARLY_PRINTK
855 This board is based on Netlogic XLP Processor.
856 Say Y here if you have a XLP based board.
860 source "arch/mips/alchemy/Kconfig"
861 source "arch/mips/ath79/Kconfig"
862 source "arch/mips/bcm47xx/Kconfig"
863 source "arch/mips/bcm63xx/Kconfig"
864 source "arch/mips/jazz/Kconfig"
865 source "arch/mips/jz4740/Kconfig"
866 source "arch/mips/lantiq/Kconfig"
867 source "arch/mips/lasat/Kconfig"
868 source "arch/mips/pmc-sierra/Kconfig"
869 source "arch/mips/powertv/Kconfig"
870 source "arch/mips/sgi-ip27/Kconfig"
871 source "arch/mips/sibyte/Kconfig"
872 source "arch/mips/txx9/Kconfig"
873 source "arch/mips/vr41xx/Kconfig"
874 source "arch/mips/cavium-octeon/Kconfig"
875 source "arch/mips/loongson/Kconfig"
876 source "arch/mips/loongson1/Kconfig"
877 source "arch/mips/netlogic/Kconfig"
881 config RWSEM_GENERIC_SPINLOCK
885 config RWSEM_XCHGADD_ALGORITHM
888 config ARCH_HAS_ILOG2_U32
892 config ARCH_HAS_ILOG2_U64
896 config GENERIC_HWEIGHT
900 config GENERIC_CALIBRATE_DELAY
904 config SCHED_OMIT_FRAME_POINTER
909 # Select some configuration options automatically based on user selections.
914 config ARCH_MAY_HAVE_PC_FDC
963 select ARCH_REQUIRE_GPIOLIB
969 config ARCH_DMA_ADDR_T_64BIT
970 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
975 config DMA_NONCOHERENT
977 select NEED_DMA_MAP_STATE
979 config NEED_DMA_MAP_STATE
982 config SYS_HAS_EARLY_PRINTK
986 bool "Support for hot-pluggable CPUs"
987 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
989 Say Y here to allow turning CPUs off and on. CPUs can be
990 controlled through /sys/devices/system/cpu.
991 (Note: power management support will enable this option
992 automatically on SMP systems. )
993 Say N if you want to disable CPU hotplug.
995 config SYS_SUPPORTS_HOTPLUG_CPU
1001 config MIPS_BONITO64
1010 config MIPS_DISABLE_OBSOLETE_IDE
1022 config GENERIC_ISA_DMA
1024 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1027 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1029 select GENERIC_ISA_DMA
1037 config HOLES_IN_ZONE
1041 # Endianness selection. Sufficiently obscure so many users don't know what to
1042 # answer,so we try hard to limit the available choices. Also the use of a
1043 # choice statement should be more obvious to the user.
1046 prompt "Endianness selection"
1048 Some MIPS machines can be configured for either little or big endian
1049 byte order. These modes require different kernels and a different
1050 Linux distribution. In general there is one preferred byteorder for a
1051 particular system but some systems are just as commonly used in the
1052 one or the other endianness.
1054 config CPU_BIG_ENDIAN
1056 depends on SYS_SUPPORTS_BIG_ENDIAN
1058 config CPU_LITTLE_ENDIAN
1059 bool "Little endian"
1060 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1068 config SYS_SUPPORTS_APM_EMULATION
1071 config SYS_SUPPORTS_BIG_ENDIAN
1074 config SYS_SUPPORTS_LITTLE_ENDIAN
1077 config SYS_SUPPORTS_HUGETLBFS
1079 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1082 config MIPS_HUGE_TLB_SUPPORT
1083 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1109 config MIPS_BOARDS_GEN
1112 config PCI_GT64XXX_PCI0
1115 config NO_EXCEPT_FILL
1120 select SERIAL_RM9000
1126 select DMA_NONCOHERENT
1128 select SWAP_IO_SPACE
1129 select SYS_HAS_CPU_R5500
1130 select SYS_SUPPORTS_32BIT_KERNEL
1131 select SYS_SUPPORTS_64BIT_KERNEL
1132 select SYS_SUPPORTS_BIG_ENDIAN
1139 select DMA_NONCOHERENT
1140 select SYS_HAS_CPU_MIPS32_R2
1141 select SYS_SUPPORTS_32BIT_KERNEL
1142 select SYS_SUPPORTS_LITTLE_ENDIAN
1143 select SYS_SUPPORTS_BIG_ENDIAN
1145 select CPU_MIPSR2_IRQ_VI
1157 select DMA_NONCOHERENT
1159 select SYS_HAS_CPU_MIPS32_R1
1160 select SYS_HAS_EARLY_PRINTK
1161 select SYS_SUPPORTS_32BIT_KERNEL
1164 config SWAP_IO_SPACE
1167 config SERIAL_RM9000
1170 config SGI_HAS_INDYDOG
1182 config SGI_HAS_ZILOG
1185 config SGI_HAS_I8042
1188 config DEFAULT_SGI_PARTITION
1200 config MIPS_L1_CACHE_SHIFT
1202 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1203 default "6" if MIPS_CPU_SCACHE
1204 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1207 config HAVE_STD_PC_SERIAL_PORT
1211 bool "ARC console support"
1212 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1216 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1221 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1230 menu "CPU selection"
1236 config CPU_LOONGSON2E
1238 depends on SYS_HAS_CPU_LOONGSON2E
1239 select CPU_LOONGSON2
1241 The Loongson 2E processor implements the MIPS III instruction set
1242 with many extensions.
1244 It has an internal FPGA northbridge, which is compatible to
1247 config CPU_LOONGSON2F
1249 depends on SYS_HAS_CPU_LOONGSON2F
1250 select CPU_LOONGSON2
1252 select ARCH_REQUIRE_GPIOLIB
1254 The Loongson 2F processor implements the MIPS III instruction set
1255 with many extensions.
1257 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1258 have a similar programming interface with FPGA northbridge used in
1261 config CPU_LOONGSON1B
1263 depends on SYS_HAS_CPU_LOONGSON1B
1264 select CPU_LOONGSON1
1266 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1267 release 2 instruction set.
1269 config CPU_MIPS32_R1
1270 bool "MIPS32 Release 1"
1271 depends on SYS_HAS_CPU_MIPS32_R1
1272 select CPU_HAS_PREFETCH
1273 select CPU_SUPPORTS_32BIT_KERNEL
1274 select CPU_SUPPORTS_HIGHMEM
1276 Choose this option to build a kernel for release 1 or later of the
1277 MIPS32 architecture. Most modern embedded systems with a 32-bit
1278 MIPS processor are based on a MIPS32 processor. If you know the
1279 specific type of processor in your system, choose those that one
1280 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1281 Release 2 of the MIPS32 architecture is available since several
1282 years so chances are you even have a MIPS32 Release 2 processor
1283 in which case you should choose CPU_MIPS32_R2 instead for better
1286 config CPU_MIPS32_R2
1287 bool "MIPS32 Release 2"
1288 depends on SYS_HAS_CPU_MIPS32_R2
1289 select CPU_HAS_PREFETCH
1290 select CPU_SUPPORTS_32BIT_KERNEL
1291 select CPU_SUPPORTS_HIGHMEM
1293 Choose this option to build a kernel for release 2 or later of the
1294 MIPS32 architecture. Most modern embedded systems with a 32-bit
1295 MIPS processor are based on a MIPS32 processor. If you know the
1296 specific type of processor in your system, choose those that one
1297 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1299 config CPU_MIPS64_R1
1300 bool "MIPS64 Release 1"
1301 depends on SYS_HAS_CPU_MIPS64_R1
1302 select CPU_HAS_PREFETCH
1303 select CPU_SUPPORTS_32BIT_KERNEL
1304 select CPU_SUPPORTS_64BIT_KERNEL
1305 select CPU_SUPPORTS_HIGHMEM
1306 select CPU_SUPPORTS_HUGEPAGES
1308 Choose this option to build a kernel for release 1 or later of the
1309 MIPS64 architecture. Many modern embedded systems with a 64-bit
1310 MIPS processor are based on a MIPS64 processor. If you know the
1311 specific type of processor in your system, choose those that one
1312 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1313 Release 2 of the MIPS64 architecture is available since several
1314 years so chances are you even have a MIPS64 Release 2 processor
1315 in which case you should choose CPU_MIPS64_R2 instead for better
1318 config CPU_MIPS64_R2
1319 bool "MIPS64 Release 2"
1320 depends on SYS_HAS_CPU_MIPS64_R2
1321 select CPU_HAS_PREFETCH
1322 select CPU_SUPPORTS_32BIT_KERNEL
1323 select CPU_SUPPORTS_64BIT_KERNEL
1324 select CPU_SUPPORTS_HIGHMEM
1325 select CPU_SUPPORTS_HUGEPAGES
1327 Choose this option to build a kernel for release 2 or later of the
1328 MIPS64 architecture. Many modern embedded systems with a 64-bit
1329 MIPS processor are based on a MIPS64 processor. If you know the
1330 specific type of processor in your system, choose those that one
1331 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1335 depends on SYS_HAS_CPU_R3000
1337 select CPU_SUPPORTS_32BIT_KERNEL
1338 select CPU_SUPPORTS_HIGHMEM
1340 Please make sure to pick the right CPU type. Linux/MIPS is not
1341 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1342 *not* work on R4000 machines and vice versa. However, since most
1343 of the supported machines have an R4000 (or similar) CPU, R4x00
1344 might be a safe bet. If the resulting kernel does not work,
1345 try to recompile with R3000.
1349 depends on SYS_HAS_CPU_TX39XX
1350 select CPU_SUPPORTS_32BIT_KERNEL
1354 depends on SYS_HAS_CPU_VR41XX
1355 select CPU_SUPPORTS_32BIT_KERNEL
1356 select CPU_SUPPORTS_64BIT_KERNEL
1358 The options selects support for the NEC VR4100 series of processors.
1359 Only choose this option if you have one of these processors as a
1360 kernel built with this option will not run on any other type of
1361 processor or vice versa.
1365 depends on SYS_HAS_CPU_R4300
1366 select CPU_SUPPORTS_32BIT_KERNEL
1367 select CPU_SUPPORTS_64BIT_KERNEL
1369 MIPS Technologies R4300-series processors.
1373 depends on SYS_HAS_CPU_R4X00
1374 select CPU_SUPPORTS_32BIT_KERNEL
1375 select CPU_SUPPORTS_64BIT_KERNEL
1376 select CPU_SUPPORTS_HUGEPAGES
1378 MIPS Technologies R4000-series processors other than 4300, including
1379 the R4000, R4400, R4600, and 4700.
1383 depends on SYS_HAS_CPU_TX49XX
1384 select CPU_HAS_PREFETCH
1385 select CPU_SUPPORTS_32BIT_KERNEL
1386 select CPU_SUPPORTS_64BIT_KERNEL
1387 select CPU_SUPPORTS_HUGEPAGES
1391 depends on SYS_HAS_CPU_R5000
1392 select CPU_SUPPORTS_32BIT_KERNEL
1393 select CPU_SUPPORTS_64BIT_KERNEL
1394 select CPU_SUPPORTS_HUGEPAGES
1396 MIPS Technologies R5000-series processors other than the Nevada.
1400 depends on SYS_HAS_CPU_R5432
1401 select CPU_SUPPORTS_32BIT_KERNEL
1402 select CPU_SUPPORTS_64BIT_KERNEL
1403 select CPU_SUPPORTS_HUGEPAGES
1407 depends on SYS_HAS_CPU_R5500
1408 select CPU_SUPPORTS_32BIT_KERNEL
1409 select CPU_SUPPORTS_64BIT_KERNEL
1410 select CPU_SUPPORTS_HUGEPAGES
1412 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1417 depends on EXPERIMENTAL
1418 depends on SYS_HAS_CPU_R6000
1419 select CPU_SUPPORTS_32BIT_KERNEL
1421 MIPS Technologies R6000 and R6000A series processors. Note these
1422 processors are extremely rare and the support for them is incomplete.
1426 depends on SYS_HAS_CPU_NEVADA
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 select CPU_SUPPORTS_HUGEPAGES
1431 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1435 depends on EXPERIMENTAL
1436 depends on SYS_HAS_CPU_R8000
1437 select CPU_HAS_PREFETCH
1438 select CPU_SUPPORTS_64BIT_KERNEL
1440 MIPS Technologies R8000 processors. Note these processors are
1441 uncommon and the support for them is incomplete.
1445 depends on SYS_HAS_CPU_R10000
1446 select CPU_HAS_PREFETCH
1447 select CPU_SUPPORTS_32BIT_KERNEL
1448 select CPU_SUPPORTS_64BIT_KERNEL
1449 select CPU_SUPPORTS_HIGHMEM
1450 select CPU_SUPPORTS_HUGEPAGES
1452 MIPS Technologies R10000-series processors.
1456 depends on SYS_HAS_CPU_RM7000
1457 select CPU_HAS_PREFETCH
1458 select CPU_SUPPORTS_32BIT_KERNEL
1459 select CPU_SUPPORTS_64BIT_KERNEL
1460 select CPU_SUPPORTS_HIGHMEM
1461 select CPU_SUPPORTS_HUGEPAGES
1465 depends on SYS_HAS_CPU_RM9000
1466 select CPU_HAS_PREFETCH
1467 select CPU_SUPPORTS_32BIT_KERNEL
1468 select CPU_SUPPORTS_64BIT_KERNEL
1469 select CPU_SUPPORTS_HIGHMEM
1470 select CPU_SUPPORTS_HUGEPAGES
1471 select WEAK_ORDERING
1475 depends on SYS_HAS_CPU_SB1
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
1482 config CPU_CAVIUM_OCTEON
1483 bool "Cavium Octeon processor"
1484 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1485 select ARCH_SPARSEMEM_ENABLE
1486 select CPU_HAS_PREFETCH
1487 select CPU_SUPPORTS_64BIT_KERNEL
1488 select SYS_SUPPORTS_SMP
1489 select NR_CPUS_DEFAULT_16
1490 select WEAK_ORDERING
1491 select CPU_SUPPORTS_HIGHMEM
1492 select CPU_SUPPORTS_HUGEPAGES
1496 The Cavium Octeon processor is a highly integrated chip containing
1497 many ethernet hardware widgets for networking tasks. The processor
1498 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1499 Full details can be found at http://www.caviumnetworks.com.
1501 config CPU_BMIPS3300
1503 depends on SYS_HAS_CPU_BMIPS3300
1506 Broadcom BMIPS3300 processors.
1508 config CPU_BMIPS4350
1510 depends on SYS_HAS_CPU_BMIPS4350
1512 select SYS_SUPPORTS_SMP
1513 select SYS_SUPPORTS_HOTPLUG_CPU
1515 Broadcom BMIPS4350 ("VIPER") processors.
1517 config CPU_BMIPS4380
1519 depends on SYS_HAS_CPU_BMIPS4380
1521 select SYS_SUPPORTS_SMP
1522 select SYS_SUPPORTS_HOTPLUG_CPU
1524 Broadcom BMIPS4380 processors.
1526 config CPU_BMIPS5000
1528 depends on SYS_HAS_CPU_BMIPS5000
1530 select CPU_SUPPORTS_HIGHMEM
1531 select MIPS_CPU_SCACHE
1532 select SYS_SUPPORTS_SMP
1533 select SYS_SUPPORTS_HOTPLUG_CPU
1535 Broadcom BMIPS5000 processors.
1538 bool "Netlogic XLR SoC"
1539 depends on SYS_HAS_CPU_XLR
1540 select CPU_SUPPORTS_32BIT_KERNEL
1541 select CPU_SUPPORTS_64BIT_KERNEL
1542 select CPU_SUPPORTS_HIGHMEM
1543 select CPU_SUPPORTS_HUGEPAGES
1544 select WEAK_ORDERING
1545 select WEAK_REORDERING_BEYOND_LLSC
1547 Netlogic Microsystems XLR/XLS processors.
1550 bool "Netlogic XLP SoC"
1551 depends on SYS_HAS_CPU_XLP
1552 select CPU_SUPPORTS_32BIT_KERNEL
1553 select CPU_SUPPORTS_64BIT_KERNEL
1554 select CPU_SUPPORTS_HIGHMEM
1556 select WEAK_ORDERING
1557 select WEAK_REORDERING_BEYOND_LLSC
1558 select CPU_HAS_PREFETCH
1560 Netlogic Microsystems XLP processors.
1564 config CPU_NOP_WORKAROUNDS
1567 config CPU_JUMP_WORKAROUNDS
1570 config CPU_LOONGSON2F_WORKAROUNDS
1571 bool "Loongson 2F Workarounds"
1573 select CPU_NOP_WORKAROUNDS
1574 select CPU_JUMP_WORKAROUNDS
1576 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1577 require workarounds. Without workarounds the system may hang
1578 unexpectedly. For more information please refer to the gas
1579 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1581 Loongson 2F03 and later have fixed these issues and no workarounds
1582 are needed. The workarounds have no significant side effect on them
1583 but may decrease the performance of the system so this option should
1584 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1587 If unsure, please say Y.
1588 endif # CPU_LOONGSON2F
1590 config SYS_SUPPORTS_ZBOOT
1592 select HAVE_KERNEL_GZIP
1593 select HAVE_KERNEL_BZIP2
1594 select HAVE_KERNEL_LZMA
1595 select HAVE_KERNEL_LZO
1597 config SYS_SUPPORTS_ZBOOT_UART16550
1599 select SYS_SUPPORTS_ZBOOT
1601 config CPU_LOONGSON2
1603 select CPU_SUPPORTS_32BIT_KERNEL
1604 select CPU_SUPPORTS_64BIT_KERNEL
1605 select CPU_SUPPORTS_HIGHMEM
1606 select CPU_SUPPORTS_HUGEPAGES
1608 config CPU_LOONGSON1
1612 select CPU_HAS_PREFETCH
1613 select CPU_SUPPORTS_32BIT_KERNEL
1614 select CPU_SUPPORTS_HIGHMEM
1619 select CPU_SUPPORTS_32BIT_KERNEL
1620 select DMA_NONCOHERENT
1622 select SWAP_IO_SPACE
1623 select WEAK_ORDERING
1625 config SYS_HAS_CPU_LOONGSON2E
1628 config SYS_HAS_CPU_LOONGSON2F
1630 select CPU_SUPPORTS_CPUFREQ
1631 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1632 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1634 config SYS_HAS_CPU_LOONGSON1B
1637 config SYS_HAS_CPU_MIPS32_R1
1640 config SYS_HAS_CPU_MIPS32_R2
1643 config SYS_HAS_CPU_MIPS64_R1
1646 config SYS_HAS_CPU_MIPS64_R2
1649 config SYS_HAS_CPU_R3000
1652 config SYS_HAS_CPU_TX39XX
1655 config SYS_HAS_CPU_VR41XX
1658 config SYS_HAS_CPU_R4300
1661 config SYS_HAS_CPU_R4X00
1664 config SYS_HAS_CPU_TX49XX
1667 config SYS_HAS_CPU_R5000
1670 config SYS_HAS_CPU_R5432
1673 config SYS_HAS_CPU_R5500
1676 config SYS_HAS_CPU_R6000
1679 config SYS_HAS_CPU_NEVADA
1682 config SYS_HAS_CPU_R8000
1685 config SYS_HAS_CPU_R10000
1688 config SYS_HAS_CPU_RM7000
1691 config SYS_HAS_CPU_RM9000
1694 config SYS_HAS_CPU_SB1
1697 config SYS_HAS_CPU_CAVIUM_OCTEON
1700 config SYS_HAS_CPU_BMIPS3300
1703 config SYS_HAS_CPU_BMIPS4350
1706 config SYS_HAS_CPU_BMIPS4380
1709 config SYS_HAS_CPU_BMIPS5000
1712 config SYS_HAS_CPU_XLR
1715 config SYS_HAS_CPU_XLP
1719 # CPU may reorder R->R, R->W, W->R, W->W
1720 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1722 config WEAK_ORDERING
1726 # CPU may reorder reads and writes beyond LL/SC
1727 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1729 config WEAK_REORDERING_BEYOND_LLSC
1734 # These two indicate any level of the MIPS32 and MIPS64 architecture
1738 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1742 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1745 # These two indicate the revision of the architecture, either Release 1 or Release 2
1749 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1753 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1755 config SYS_SUPPORTS_32BIT_KERNEL
1757 config SYS_SUPPORTS_64BIT_KERNEL
1759 config CPU_SUPPORTS_32BIT_KERNEL
1761 config CPU_SUPPORTS_64BIT_KERNEL
1763 config CPU_SUPPORTS_CPUFREQ
1765 config CPU_SUPPORTS_ADDRWINCFG
1767 config CPU_SUPPORTS_HUGEPAGES
1769 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1771 config MIPS_PGD_C0_CONTEXT
1773 default y if 64BIT && CPU_MIPSR2
1776 # Set to y for ptrace access to watch registers.
1778 config HARDWARE_WATCHPOINTS
1780 default y if CPU_MIPSR1 || CPU_MIPSR2
1785 prompt "Kernel code model"
1787 You should only select this option if you have a workload that
1788 actually benefits from 64-bit processing or if your machine has
1789 large memory. You will only be presented a single option in this
1790 menu if your system does not support both 32-bit and 64-bit kernels.
1793 bool "32-bit kernel"
1794 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1797 Select this option if you want to build a 32-bit kernel.
1799 bool "64-bit kernel"
1800 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1801 select HAVE_SYSCALL_WRAPPERS
1803 Select this option if you want to build a 64-bit kernel.
1808 prompt "Kernel page size"
1809 default PAGE_SIZE_4KB
1811 config PAGE_SIZE_4KB
1813 depends on !CPU_LOONGSON2
1815 This option select the standard 4kB Linux page size. On some
1816 R3000-family processors this is the only available page size. Using
1817 4kB page size will minimize memory consumption and is therefore
1818 recommended for low memory systems.
1820 config PAGE_SIZE_8KB
1822 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1824 Using 8kB page size will result in higher performance kernel at
1825 the price of higher memory consumption. This option is available
1826 only on R8000 and cnMIPS processors. Note that you will need a
1827 suitable Linux distribution to support this.
1829 config PAGE_SIZE_16KB
1831 depends on !CPU_R3000 && !CPU_TX39XX
1833 Using 16kB page size will result in higher performance kernel at
1834 the price of higher memory consumption. This option is available on
1835 all non-R3000 family processors. Note that you will need a suitable
1836 Linux distribution to support this.
1838 config PAGE_SIZE_32KB
1840 depends on CPU_CAVIUM_OCTEON
1842 Using 32kB page size will result in higher performance kernel at
1843 the price of higher memory consumption. This option is available
1844 only on cnMIPS cores. Note that you will need a suitable Linux
1845 distribution to support this.
1847 config PAGE_SIZE_64KB
1849 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1851 Using 64kB page size will result in higher performance kernel at
1852 the price of higher memory consumption. This option is available on
1853 all non-R3000 family processor. Not that at the time of this
1854 writing this option is still high experimental.
1858 config FORCE_MAX_ZONEORDER
1859 int "Maximum zone order"
1860 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1861 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1862 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1863 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1864 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1865 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1869 The kernel memory allocator divides physically contiguous memory
1870 blocks into "zones", where each zone is a power of two number of
1871 pages. This option selects the largest power of two that the kernel
1872 keeps in the memory allocator. If you need to allocate very large
1873 blocks of physically contiguous memory, then you may need to
1874 increase this value.
1876 This config option is actually maximum order plus one. For example,
1877 a value of 11 means that the largest free memory block is 2^10 pages.
1879 The page size is not necessarily 4KB. Keep this in mind
1880 when choosing a value for this option.
1885 config IP22_CPU_SCACHE
1890 # Support for a MIPS32 / MIPS64 style S-caches
1892 config MIPS_CPU_SCACHE
1896 config R5000_CPU_SCACHE
1900 config RM7000_CPU_SCACHE
1904 config SIBYTE_DMA_PAGEOPS
1905 bool "Use DMA to clear/copy pages"
1908 Instead of using the CPU to zero and copy pages, use a Data Mover
1909 channel. These DMA channels are otherwise unused by the standard
1910 SiByte Linux port. Seems to give a small performance benefit.
1912 config CPU_HAS_PREFETCH
1915 config CPU_GENERIC_DUMP_TLB
1917 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1921 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1923 config CPU_R4K_CACHE_TLB
1925 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1928 prompt "MIPS MT options"
1930 config MIPS_MT_DISABLED
1931 bool "Disable multithreading support."
1933 Use this option if your workload can't take advantage of
1934 MIPS hardware multithreading support. On systems that don't have
1935 the option of an MT-enabled processor this option will be the only
1936 option in this menu.
1939 bool "Use 1 TC on each available VPE for SMP"
1940 depends on SYS_SUPPORTS_MULTITHREADING
1941 select CPU_MIPSR2_IRQ_VI
1942 select CPU_MIPSR2_IRQ_EI
1944 select NR_CPUS_DEFAULT_2
1946 select SYS_SUPPORTS_SCHED_SMT if SMP
1947 select SYS_SUPPORTS_SMP
1949 select MIPS_PERF_SHARED_TC_COUNTERS
1951 This is a kernel model which is known a VSMP but lately has been
1952 marketesed into SMVP.
1953 Virtual SMP uses the processor's VPEs to implement virtual
1954 processors. In currently available configuration of the 34K processor
1955 this allows for a dual processor. Both processors will share the same
1956 primary caches; each will obtain the half of the TLB for it's own
1957 exclusive use. For a layman this model can be described as similar to
1958 what Intel calls Hyperthreading.
1960 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1963 bool "SMTC: Use all TCs on all VPEs for SMP"
1964 depends on CPU_MIPS32_R2
1965 #depends on CPU_MIPS64_R2 # once there is hardware ...
1966 depends on SYS_SUPPORTS_MULTITHREADING
1967 select CPU_MIPSR2_IRQ_VI
1968 select CPU_MIPSR2_IRQ_EI
1970 select NR_CPUS_DEFAULT_8
1972 select SYS_SUPPORTS_SMP
1975 This is a kernel model which is known a SMTC or lately has been
1976 marketesed into SMVP.
1977 is presenting the available TC's of the core as processors to Linux.
1978 On currently available 34K processors this means a Linux system will
1979 see up to 5 processors. The implementation of the SMTC kernel differs
1980 significantly from VSMP and cannot efficiently coexist in the same
1981 kernel binary so the choice between VSMP and SMTC is a compile time
1984 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1992 bool "SMT (multithreading) scheduler support"
1993 depends on SYS_SUPPORTS_SCHED_SMT
1996 SMT scheduler support improves the CPU scheduler's decision making
1997 when dealing with MIPS MT enabled cores at a cost of slightly
1998 increased overhead in some places. If unsure say N here.
2000 config SYS_SUPPORTS_SCHED_SMT
2003 config SYS_SUPPORTS_MULTITHREADING
2006 config MIPS_MT_FPAFF
2007 bool "Dynamic FPU affinity for FP-intensive threads"
2009 depends on MIPS_MT_SMP || MIPS_MT_SMTC
2011 config MIPS_VPE_LOADER
2012 bool "VPE loader support."
2013 depends on SYS_SUPPORTS_MULTITHREADING
2014 select CPU_MIPSR2_IRQ_VI
2015 select CPU_MIPSR2_IRQ_EI
2018 Includes a loader for loading an elf relocatable object
2019 onto another VPE and running it.
2021 config MIPS_MT_SMTC_IM_BACKSTOP
2022 bool "Use per-TC register bits as backstop for inhibited IM bits"
2023 depends on MIPS_MT_SMTC
2026 To support multiple TC microthreads acting as "CPUs" within
2027 a VPE, VPE-wide interrupt mask bits must be specially manipulated
2028 during interrupt handling. To support legacy drivers and interrupt
2029 controller management code, SMTC has a "backstop" to track and
2030 if necessary restore the interrupt mask. This has some performance
2031 impact on interrupt service overhead.
2033 config MIPS_MT_SMTC_IRQAFF
2034 bool "Support IRQ affinity API"
2035 depends on MIPS_MT_SMTC
2038 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2039 for SMTC Linux kernel. Requires platform support, of which
2040 an example can be found in the MIPS kernel i8259 and Malta
2041 platform code. Adds some overhead to interrupt dispatch, and
2042 should be used only if you know what you are doing.
2044 config MIPS_VPE_LOADER_TOM
2045 bool "Load VPE program into memory hidden from linux"
2046 depends on MIPS_VPE_LOADER
2049 The loader can use memory that is present but has been hidden from
2050 Linux using the kernel command line option "mem=xxMB". It's up to
2051 you to ensure the amount you put in the option and the space your
2052 program requires is less or equal to the amount physically present.
2054 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2055 config MIPS_VPE_APSP_API
2056 bool "Enable support for AP/SP API (RTLX)"
2057 depends on MIPS_VPE_LOADER
2061 bool "MIPS CMP framework support"
2062 depends on SYS_SUPPORTS_MIPS_CMP
2064 select SYS_SUPPORTS_SMP
2065 select SYS_SUPPORTS_SCHED_SMT if SMP
2066 select WEAK_ORDERING
2069 This is a placeholder option for the GCMP work. It will need to
2070 be handled differently...
2072 config SB1_PASS_1_WORKAROUNDS
2074 depends on CPU_SB1_PASS_1
2077 config SB1_PASS_2_WORKAROUNDS
2079 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2082 config SB1_PASS_2_1_WORKAROUNDS
2084 depends on CPU_SB1 && CPU_SB1_PASS_2
2087 config 64BIT_PHYS_ADDR
2090 config ARCH_PHYS_ADDR_T_64BIT
2091 def_bool 64BIT_PHYS_ADDR
2093 config CPU_HAS_SMARTMIPS
2094 depends on SYS_SUPPORTS_SMARTMIPS
2095 bool "Support for the SmartMIPS ASE"
2097 SmartMIPS is a extension of the MIPS32 architecture aimed at
2098 increased security at both hardware and software level for
2099 smartcards. Enabling this option will allow proper use of the
2100 SmartMIPS instructions by Linux applications. However a kernel with
2101 this option will not work on a MIPS core without SmartMIPS core. If
2102 you don't know you probably don't have SmartMIPS and should say N
2112 # Vectored interrupt mode is an R2 feature
2114 config CPU_MIPSR2_IRQ_VI
2118 # Extended interrupt mode is an R2 feature
2120 config CPU_MIPSR2_IRQ_EI
2125 depends on !CPU_R3000
2131 config CPU_DADDI_WORKAROUNDS
2134 config CPU_R4000_WORKAROUNDS
2136 select CPU_R4400_WORKAROUNDS
2138 config CPU_R4400_WORKAROUNDS
2142 # - Highmem only makes sense for the 32-bit kernel.
2143 # - The current highmem code will only work properly on physically indexed
2144 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2145 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2146 # moment we protect the user and offer the highmem option only on machines
2147 # where it's known to be safe. This will not offer highmem on a few systems
2148 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2149 # indexed CPUs but we're playing safe.
2150 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2151 # know they might have memory configurations that could make use of highmem
2155 bool "High Memory Support"
2156 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2158 config CPU_SUPPORTS_HIGHMEM
2161 config SYS_SUPPORTS_HIGHMEM
2164 config SYS_SUPPORTS_SMARTMIPS
2167 config ARCH_FLATMEM_ENABLE
2169 depends on !NUMA && !CPU_LOONGSON2
2171 config ARCH_DISCONTIGMEM_ENABLE
2173 default y if SGI_IP27
2175 Say Y to support efficient handling of discontiguous physical memory,
2176 for architectures which are either NUMA (Non-Uniform Memory Access)
2177 or have huge holes in the physical address space for other reasons.
2178 See <file:Documentation/vm/numa> for more.
2180 config ARCH_SPARSEMEM_ENABLE
2182 select SPARSEMEM_STATIC
2186 depends on SYS_SUPPORTS_NUMA
2188 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2189 Access). This option improves performance on systems with more
2190 than two nodes; on two node systems it is generally better to
2191 leave it disabled; on single node systems disable this option
2194 config SYS_SUPPORTS_NUMA
2200 depends on NEED_MULTIPLE_NODES
2202 config HW_PERF_EVENTS
2203 bool "Enable hardware performance counter support for perf events"
2204 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2207 Enable hardware performance counter support for perf events. If
2208 disabled, perf events will use software events only.
2213 bool "Multi-Processing support"
2214 depends on SYS_SUPPORTS_SMP
2216 select USE_GENERIC_SMP_HELPERS
2218 This enables support for systems with more than one CPU. If you have
2219 a system with only one CPU, like most personal computers, say N. If
2220 you have a system with more than one CPU, say Y.
2222 If you say N here, the kernel will run on single and multiprocessor
2223 machines, but will use only one CPU of a multiprocessor machine. If
2224 you say Y here, the kernel will run on many, but not all,
2225 singleprocessor machines. On a singleprocessor machine, the kernel
2226 will run faster if you say N here.
2228 People using multiprocessor machines who say Y here should also say
2229 Y to "Enhanced Real Time Clock Support", below.
2231 See also the SMP-HOWTO available at
2232 <http://www.tldp.org/docs.html#howto>.
2234 If you don't know what to do here, say N.
2239 config SYS_SUPPORTS_MIPS_CMP
2242 config SYS_SUPPORTS_SMP
2245 config NR_CPUS_DEFAULT_1
2248 config NR_CPUS_DEFAULT_2
2251 config NR_CPUS_DEFAULT_4
2254 config NR_CPUS_DEFAULT_8
2257 config NR_CPUS_DEFAULT_16
2260 config NR_CPUS_DEFAULT_32
2263 config NR_CPUS_DEFAULT_64
2267 int "Maximum number of CPUs (2-64)"
2268 range 1 64 if NR_CPUS_DEFAULT_1
2270 default "1" if NR_CPUS_DEFAULT_1
2271 default "2" if NR_CPUS_DEFAULT_2
2272 default "4" if NR_CPUS_DEFAULT_4
2273 default "8" if NR_CPUS_DEFAULT_8
2274 default "16" if NR_CPUS_DEFAULT_16
2275 default "32" if NR_CPUS_DEFAULT_32
2276 default "64" if NR_CPUS_DEFAULT_64
2278 This allows you to specify the maximum number of CPUs which this
2279 kernel will support. The maximum supported value is 32 for 32-bit
2280 kernel and 64 for 64-bit kernels; the minimum value which makes
2281 sense is 1 for Qemu (useful only for kernel debugging purposes)
2282 and 2 for all others.
2284 This is purely to save memory - each supported CPU adds
2285 approximately eight kilobytes to the kernel image. For best
2286 performance should round up your number of processors to the next
2289 config MIPS_PERF_SHARED_TC_COUNTERS
2293 # Timer Interrupt Frequency Configuration
2297 prompt "Timer frequency"
2300 Allows the configuration of the timer frequency.
2303 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2306 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2309 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2312 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2315 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2318 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2321 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2325 config SYS_SUPPORTS_48HZ
2328 config SYS_SUPPORTS_100HZ
2331 config SYS_SUPPORTS_128HZ
2334 config SYS_SUPPORTS_250HZ
2337 config SYS_SUPPORTS_256HZ
2340 config SYS_SUPPORTS_1000HZ
2343 config SYS_SUPPORTS_1024HZ
2346 config SYS_SUPPORTS_ARBIT_HZ
2348 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2349 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2350 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2351 !SYS_SUPPORTS_1024HZ
2356 default 100 if HZ_100
2357 default 128 if HZ_128
2358 default 250 if HZ_250
2359 default 256 if HZ_256
2360 default 1000 if HZ_1000
2361 default 1024 if HZ_1024
2363 source "kernel/Kconfig.preempt"
2366 bool "Kexec system call (EXPERIMENTAL)"
2367 depends on EXPERIMENTAL
2369 kexec is a system call that implements the ability to shutdown your
2370 current kernel, and to start another kernel. It is like a reboot
2371 but it is independent of the system firmware. And like a reboot
2372 you can start any kernel with it, not just Linux.
2374 The name comes from the similarity to the exec system call.
2376 It is an ongoing process to be certain the hardware in a machine
2377 is properly shutdown, so do not be surprised if this code does not
2378 initially work for you. It may help to enable device hotplugging
2379 support. As of this writing the exact hardware interface is
2380 strongly in flux, so no good recommendation can be made.
2383 bool "Enable seccomp to safely compute untrusted bytecode"
2387 This kernel feature is useful for number crunching applications
2388 that may need to compute untrusted bytecode during their
2389 execution. By using pipes or other transports made available to
2390 the process as file descriptors supporting the read/write
2391 syscalls, it's possible to isolate those applications in
2392 their own address space using seccomp. Once seccomp is
2393 enabled via /proc/<pid>/seccomp, it cannot be disabled
2394 and the task is only allowed to execute a few safe syscalls
2395 defined by each seccomp mode.
2397 If unsure, say Y. Only embedded should say N here.
2402 select OF_EARLY_FLATTREE
2407 config LOCKDEP_SUPPORT
2411 config STACKTRACE_SUPPORT
2415 source "init/Kconfig"
2417 source "kernel/Kconfig.freezer"
2419 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2427 bool "Support for PCI controller"
2428 depends on HW_HAS_PCI
2430 select GENERIC_PCI_IOMAP
2431 select NO_GENERIC_PCI_IOPORT_MAP
2433 Find out whether you have a PCI motherboard. PCI is the name of a
2434 bus system, i.e. the way the CPU talks to the other stuff inside
2435 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2441 source "drivers/pci/Kconfig"
2443 source "drivers/pci/pcie/Kconfig"
2446 # ISA support is now enabled via select. Too many systems still have the one
2447 # or other ISA chip on the board that users don't know about so don't expect
2448 # users to choose the right thing ...
2455 depends on HW_HAS_EISA
2457 select GENERIC_ISA_DMA
2459 The Extended Industry Standard Architecture (EISA) bus was
2460 developed as an open alternative to the IBM MicroChannel bus.
2462 The EISA bus provided some of the features of the IBM MicroChannel
2463 bus while maintaining backward compatibility with cards made for
2464 the older ISA bus. The EISA bus saw limited use between 1988 and
2465 1995 when it was made obsolete by the PCI bus.
2467 Say Y here if you are building a kernel for an EISA-based machine.
2471 source "drivers/eisa/Kconfig"
2474 bool "TURBOchannel support"
2475 depends on MACH_DECSTATION
2477 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2478 processors. TURBOchannel programming specifications are available
2480 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2482 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2483 Linux driver support status is documented at:
2484 <http://www.linux-mips.org/wiki/DECstation>
2494 select MIPS_EXTERNAL_TIMER
2499 source "drivers/pcmcia/Kconfig"
2501 source "drivers/pci/hotplug/Kconfig"
2504 bool "RapidIO support"
2508 If you say Y here, the kernel will include drivers and
2509 infrastructure code to support RapidIO interconnect devices.
2511 source "drivers/rapidio/Kconfig"
2515 menu "Executable file formats"
2517 source "fs/Kconfig.binfmt"
2522 config MIPS32_COMPAT
2523 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2526 Select this option if you want Linux/MIPS 32-bit binary
2527 compatibility. Since all software available for Linux/MIPS is
2528 currently 32-bit you should say Y here.
2532 depends on MIPS32_COMPAT
2533 select ARCH_WANT_OLD_COMPAT_IPC
2536 config SYSVIPC_COMPAT
2538 depends on COMPAT && SYSVIPC
2542 bool "Kernel support for o32 binaries"
2543 depends on MIPS32_COMPAT
2545 Select this option if you want to run o32 binaries. These are pure
2546 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2547 existing binaries are in this format.
2552 bool "Kernel support for n32 binaries"
2553 depends on MIPS32_COMPAT
2555 Select this option if you want to run n32 binaries. These are
2556 64-bit binaries using 32-bit quantities for addressing and certain
2557 data that would normally be 64-bit. They are used in special
2564 default y if MIPS32_O32 || MIPS32_N32
2568 menu "Power management options"
2570 config ARCH_HIBERNATION_POSSIBLE
2572 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2574 config ARCH_SUSPEND_POSSIBLE
2576 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2578 source "kernel/power/Kconfig"
2582 source "arch/mips/kernel/cpufreq/Kconfig"
2584 source "net/Kconfig"
2586 source "drivers/Kconfig"
2588 source "drivers/firmware/Kconfig"
2592 source "arch/mips/Kconfig.debug"
2594 source "security/Kconfig"
2596 source "crypto/Kconfig"
2598 source "lib/Kconfig"