4 select HAVE_GENERIC_DMA_COHERENT
7 select HAVE_PERF_EVENTS
8 select PERF_USE_VMALLOC
10 select ARCH_HAVE_CUSTOM_GPIO_H
11 select HAVE_FUNCTION_TRACER
12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
13 select HAVE_DYNAMIC_FTRACE
14 select HAVE_FTRACE_MCOUNT_RECORD
15 select HAVE_C_RECORDMCOUNT
16 select HAVE_FUNCTION_GRAPH_TRACER
18 select HAVE_KRETPROBES
19 select HAVE_DEBUG_KMEMLEAK
20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
22 select RTC_LIB if !MACH_LOONGSON
23 select GENERIC_ATOMIC64 if !64BIT
24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26 select HAVE_DMA_API_DEBUG
27 select HAVE_GENERIC_HARDIRQS
28 select GENERIC_IRQ_PROBE
29 select GENERIC_IRQ_SHOW
30 select HAVE_ARCH_JUMP_LABEL
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select IRQ_FORCED_THREADING
34 select HAVE_MEMBLOCK_NODE_MAP
35 select ARCH_DISCARD_MEMBLOCK
36 select GENERIC_SMP_IDLE_THREAD
37 select BUILDTIME_EXTABLE_SORT
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_CMOS_UPDATE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select MODULES_USE_ELF_REL if MODULES
42 select MODULES_USE_ELF_RELA if MODULES && 64BIT
44 menu "Machine selection"
54 bool "Alchemy processor based machines"
55 select 64BIT_PHYS_ADDR
59 select SYS_HAS_CPU_MIPS32_R1
60 select SYS_SUPPORTS_32BIT_KERNEL
61 select SYS_SUPPORTS_APM_EMULATION
63 select ARCH_WANT_OPTIONAL_GPIOLIB
64 select SYS_SUPPORTS_ZBOOT
65 select USB_ARCH_HAS_OHCI
66 select USB_ARCH_HAS_EHCI
69 bool "Texas Instruments AR7"
71 select DMA_NONCOHERENT
77 select SYS_HAS_CPU_MIPS32_R1
78 select SYS_HAS_EARLY_PRINTK
79 select SYS_SUPPORTS_32BIT_KERNEL
80 select SYS_SUPPORTS_LITTLE_ENDIAN
81 select SYS_SUPPORTS_ZBOOT_UART16550
82 select ARCH_REQUIRE_GPIOLIB
86 Support for the Texas Instruments AR7 System-on-a-Chip
87 family: TNETD7100, 7200 and 7300.
90 bool "Atheros AR71XX/AR724X/AR913X based boards"
91 select ARCH_REQUIRE_GPIOLIB
95 select DMA_NONCOHERENT
99 select SYS_HAS_CPU_MIPS32_R2
100 select SYS_HAS_EARLY_PRINTK
101 select SYS_SUPPORTS_32BIT_KERNEL
102 select SYS_SUPPORTS_BIG_ENDIAN
104 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
107 bool "Broadcom BCM47XX based boards"
108 select ARCH_WANT_OPTIONAL_GPIOLIB
111 select DMA_NONCOHERENT
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
117 select SYS_HAS_EARLY_PRINTK
119 Support for BCM47XX based boards
122 bool "Broadcom BCM63XX based boards"
125 select DMA_NONCOHERENT
127 select SYS_HAS_CPU_MIPS32_R1
128 select SYS_SUPPORTS_32BIT_KERNEL
129 select SYS_SUPPORTS_BIG_ENDIAN
130 select SYS_HAS_EARLY_PRINTK
132 select ARCH_REQUIRE_GPIOLIB
135 Support for BCM63XX based boards
142 select DMA_NONCOHERENT
148 select PCI_GT64XXX_PCI0
150 select SYS_HAS_CPU_NEVADA
151 select SYS_HAS_EARLY_PRINTK
152 select SYS_SUPPORTS_32BIT_KERNEL
153 select SYS_SUPPORTS_64BIT_KERNEL
154 select SYS_SUPPORTS_LITTLE_ENDIAN
156 config MACH_DECSTATION
163 select CPU_DADDI_WORKAROUNDS if 64BIT
164 select CPU_R4000_WORKAROUNDS if 64BIT
165 select CPU_R4400_WORKAROUNDS if 64BIT
166 select DMA_NONCOHERENT
169 select SYS_HAS_CPU_R3000
170 select SYS_HAS_CPU_R4X00
171 select SYS_SUPPORTS_32BIT_KERNEL
172 select SYS_SUPPORTS_64BIT_KERNEL
173 select SYS_SUPPORTS_LITTLE_ENDIAN
174 select SYS_SUPPORTS_128HZ
175 select SYS_SUPPORTS_256HZ
176 select SYS_SUPPORTS_1024HZ
178 This enables support for DEC's MIPS based workstations. For details
179 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
180 DECstation porting pages on <http://decstation.unix-ag.org/>.
182 If you have one of the following DECstation Models you definitely
183 want to choose R4xx0 for the CPU Type:
190 otherwise choose R3000.
193 bool "Jazz family of machines"
196 select ARCH_MAY_HAVE_PC_FDC
199 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
200 select GENERIC_ISA_DMA
201 select HAVE_PCSPKR_PLATFORM
206 select SYS_HAS_CPU_R4X00
207 select SYS_SUPPORTS_32BIT_KERNEL
208 select SYS_SUPPORTS_64BIT_KERNEL
209 select SYS_SUPPORTS_100HZ
211 This a family of machines based on the MIPS R4030 chipset which was
212 used by several vendors to build RISC/os and Windows NT workstations.
213 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
214 Olivetti M700-10 workstations.
217 bool "Ingenic JZ4740 based machines"
218 select SYS_HAS_CPU_MIPS32_R1
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_LITTLE_ENDIAN
221 select SYS_SUPPORTS_ZBOOT_UART16550
222 select DMA_NONCOHERENT
225 select ARCH_REQUIRE_GPIOLIB
226 select SYS_HAS_EARLY_PRINTK
229 select GENERIC_IRQ_CHIP
232 bool "Lantiq based platforms"
233 select DMA_NONCOHERENT
237 select SYS_HAS_CPU_MIPS32_R1
238 select SYS_HAS_CPU_MIPS32_R2
239 select SYS_SUPPORTS_BIG_ENDIAN
240 select SYS_SUPPORTS_32BIT_KERNEL
241 select SYS_SUPPORTS_MULTITHREADING
242 select SYS_HAS_EARLY_PRINTK
243 select ARCH_REQUIRE_GPIOLIB
246 select HAVE_MACH_CLKDEV
250 select PINCTRL_LANTIQ
253 bool "LASAT Networks platforms"
256 select DMA_NONCOHERENT
257 select SYS_HAS_EARLY_PRINTK
260 select PCI_GT64XXX_PCI0
262 select R5000_CPU_SCACHE
263 select SYS_HAS_CPU_R5000
264 select SYS_SUPPORTS_32BIT_KERNEL
265 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
266 select SYS_SUPPORTS_LITTLE_ENDIAN
269 bool "Loongson family of machines"
270 select SYS_SUPPORTS_ZBOOT
272 This enables the support of Loongson family of machines.
274 Loongson is a family of general-purpose MIPS-compatible CPUs.
275 developed at Institute of Computing Technology (ICT),
276 Chinese Academy of Sciences (CAS) in the People's Republic
277 of China. The chief architect is Professor Weiwu Hu.
279 config MACH_LOONGSON1
280 bool "Loongson 1 family of machines"
281 select SYS_SUPPORTS_ZBOOT
283 This enables support for the Loongson 1 based machines.
285 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
286 the ICT (Institute of Computing Technology) and the Chinese Academy
290 bool "MIPS Malta board"
291 select ARCH_MAY_HAVE_PC_FDC
296 select DMA_NONCOHERENT
297 select GENERIC_ISA_DMA
298 select HAVE_PCSPKR_PLATFORM
304 select MIPS_BOARDS_GEN
306 select MIPS_CPU_SCACHE
307 select PCI_GT64XXX_PCI0
310 select SYS_HAS_CPU_MIPS32_R1
311 select SYS_HAS_CPU_MIPS32_R2
312 select SYS_HAS_CPU_MIPS64_R1
313 select SYS_HAS_CPU_MIPS64_R2
314 select SYS_HAS_CPU_NEVADA
315 select SYS_HAS_CPU_RM7000
316 select SYS_HAS_EARLY_PRINTK
317 select SYS_SUPPORTS_32BIT_KERNEL
318 select SYS_SUPPORTS_64BIT_KERNEL
319 select SYS_SUPPORTS_BIG_ENDIAN
320 select SYS_SUPPORTS_LITTLE_ENDIAN
321 select SYS_SUPPORTS_MIPS_CMP
322 select SYS_SUPPORTS_MULTITHREADING
323 select SYS_SUPPORTS_SMARTMIPS
324 select SYS_SUPPORTS_ZBOOT
326 This enables support for the MIPS Technologies Malta evaluation
330 bool "MIPS SEAD3 board"
335 select CPU_MIPSR2_IRQ_VI
336 select CPU_MIPSR2_IRQ_EI
337 select DMA_NONCOHERENT
340 select MIPS_BOARDS_GEN
341 select MIPS_CPU_SCACHE
343 select SYS_HAS_CPU_MIPS32_R1
344 select SYS_HAS_CPU_MIPS32_R2
345 select SYS_HAS_CPU_MIPS64_R1
346 select SYS_HAS_EARLY_PRINTK
347 select SYS_SUPPORTS_32BIT_KERNEL
348 select SYS_SUPPORTS_64BIT_KERNEL
349 select SYS_SUPPORTS_BIG_ENDIAN
350 select SYS_SUPPORTS_LITTLE_ENDIAN
351 select SYS_SUPPORTS_SMARTMIPS
352 select USB_ARCH_HAS_EHCI
353 select USB_EHCI_BIG_ENDIAN_DESC
354 select USB_EHCI_BIG_ENDIAN_MMIO
356 This enables support for the MIPS Technologies SEAD3 evaluation
360 bool "NEC EMMA2RH Mark-eins board"
364 This enables support for the NEC Electronics Mark-eins boards.
367 bool "NEC VR4100 series based machines"
370 select SYS_HAS_CPU_VR41XX
371 select ARCH_REQUIRE_GPIOLIB
374 bool "NXP STB220 board"
377 Support for NXP Semiconductors STB220 Development Board.
384 Support for NXP Semiconductors STB225 Development Board.
387 bool "NXP PNX8550 based JBS board"
389 select SYS_SUPPORTS_LITTLE_ENDIAN
391 config PNX8550_STB810
392 bool "NXP PNX8550 based STB810 board"
394 select SYS_SUPPORTS_LITTLE_ENDIAN
397 bool "PMC-Sierra MSP chipsets"
400 select DMA_NONCOHERENT
402 select NO_EXCEPT_FILL
404 select SYS_HAS_CPU_MIPS32_R1
405 select SYS_HAS_CPU_MIPS32_R2
406 select SYS_SUPPORTS_32BIT_KERNEL
407 select SYS_SUPPORTS_BIG_ENDIAN
410 select SERIAL_8250_CONSOLE
412 This adds support for the PMC-Sierra family of Multi-Service
413 Processor System-On-A-Chips. These parts include a number
414 of integrated peripherals, interfaces and DSPs in addition to
415 a variety of MIPS cores.
421 select CPU_MIPSR2_IRQ_VI
422 select CPU_MIPSR2_IRQ_EI
424 select DMA_NONCOHERENT
426 select SYS_HAS_EARLY_PRINTK
427 select SYS_HAS_CPU_MIPS32_R2
428 select SYS_SUPPORTS_32BIT_KERNEL
429 select SYS_SUPPORTS_BIG_ENDIAN
430 select SYS_SUPPORTS_HIGHMEM
431 select USB_OHCI_LITTLE_ENDIAN
433 This enables support for the Cisco PowerTV Platform.
436 bool "SGI IP22 (Indy/Indigo2)"
442 select DEFAULT_SGI_PARTITION
443 select DMA_NONCOHERENT
447 select IP22_CPU_SCACHE
449 select GENERIC_ISA_DMA_SUPPORT_BROKEN
451 select SGI_HAS_INDYDOG
457 select SYS_HAS_CPU_R4X00
458 select SYS_HAS_CPU_R5000
460 # Disable EARLY_PRINTK for now since it leads to overwritten prom
461 # memory during early boot on some machines.
463 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
464 # for a more details discussion
466 # select SYS_HAS_EARLY_PRINTK
467 select SYS_SUPPORTS_32BIT_KERNEL
468 select SYS_SUPPORTS_64BIT_KERNEL
469 select SYS_SUPPORTS_BIG_ENDIAN
471 This are the SGI Indy, Challenge S and Indigo2, as well as certain
472 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
473 that runs on these, say Y here.
476 bool "SGI IP27 (Origin200/2000)"
480 select DEFAULT_SGI_PARTITION
482 select SYS_HAS_EARLY_PRINTK
484 select NR_CPUS_DEFAULT_64
485 select SYS_HAS_CPU_R10000
486 select SYS_SUPPORTS_64BIT_KERNEL
487 select SYS_SUPPORTS_BIG_ENDIAN
488 select SYS_SUPPORTS_NUMA
489 select SYS_SUPPORTS_SMP
491 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
492 workstations. To compile a Linux kernel that runs on these, say Y
496 bool "SGI IP28 (Indigo2 R10k)"
502 select DEFAULT_SGI_PARTITION
503 select DMA_NONCOHERENT
504 select GENERIC_ISA_DMA_SUPPORT_BROKEN
510 select SGI_HAS_INDYDOG
516 select SYS_HAS_CPU_R10000
518 # Disable EARLY_PRINTK for now since it leads to overwritten prom
519 # memory during early boot on some machines.
521 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
522 # for a more details discussion
524 # select SYS_HAS_EARLY_PRINTK
525 select SYS_SUPPORTS_64BIT_KERNEL
526 select SYS_SUPPORTS_BIG_ENDIAN
528 This is the SGI Indigo2 with R10000 processor. To compile a Linux
529 kernel that runs on these, say Y here.
538 select DMA_NONCOHERENT
541 select R5000_CPU_SCACHE
542 select RM7000_CPU_SCACHE
543 select SYS_HAS_CPU_R5000
544 select SYS_HAS_CPU_R10000 if BROKEN
545 select SYS_HAS_CPU_RM7000
546 select SYS_HAS_CPU_NEVADA
547 select SYS_SUPPORTS_64BIT_KERNEL
548 select SYS_SUPPORTS_BIG_ENDIAN
550 If you want this kernel to run on SGI O2 workstation, say Y here.
553 bool "Sibyte BCM91120C-CRhine"
556 select SIBYTE_BCM1120
558 select SYS_HAS_CPU_SB1
559 select SYS_SUPPORTS_BIG_ENDIAN
560 select SYS_SUPPORTS_LITTLE_ENDIAN
563 bool "Sibyte BCM91120x-Carmel"
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 BCM91125C-CRhone"
576 select SIBYTE_BCM1125
578 select SYS_HAS_CPU_SB1
579 select SYS_SUPPORTS_BIG_ENDIAN
580 select SYS_SUPPORTS_HIGHMEM
581 select SYS_SUPPORTS_LITTLE_ENDIAN
584 bool "Sibyte BCM91125E-Rhone"
587 select SIBYTE_BCM1125H
589 select SYS_HAS_CPU_SB1
590 select SYS_SUPPORTS_BIG_ENDIAN
591 select SYS_SUPPORTS_LITTLE_ENDIAN
594 bool "Sibyte BCM91250A-SWARM"
597 select HAVE_PATA_PLATFORM
598 select NR_CPUS_DEFAULT_2
601 select SYS_HAS_CPU_SB1
602 select SYS_SUPPORTS_BIG_ENDIAN
603 select SYS_SUPPORTS_HIGHMEM
604 select SYS_SUPPORTS_LITTLE_ENDIAN
605 select ZONE_DMA32 if 64BIT
607 config SIBYTE_LITTLESUR
608 bool "Sibyte BCM91250C2-LittleSur"
611 select HAVE_PATA_PLATFORM
612 select NR_CPUS_DEFAULT_2
615 select SYS_HAS_CPU_SB1
616 select SYS_SUPPORTS_BIG_ENDIAN
617 select SYS_SUPPORTS_HIGHMEM
618 select SYS_SUPPORTS_LITTLE_ENDIAN
620 config SIBYTE_SENTOSA
621 bool "Sibyte BCM91250E-Sentosa"
624 select NR_CPUS_DEFAULT_2
627 select SYS_HAS_CPU_SB1
628 select SYS_SUPPORTS_BIG_ENDIAN
629 select SYS_SUPPORTS_LITTLE_ENDIAN
632 bool "Sibyte BCM91480B-BigSur"
635 select NR_CPUS_DEFAULT_4
636 select SIBYTE_BCM1x80
638 select SYS_HAS_CPU_SB1
639 select SYS_SUPPORTS_BIG_ENDIAN
640 select SYS_SUPPORTS_HIGHMEM
641 select SYS_SUPPORTS_LITTLE_ENDIAN
642 select ZONE_DMA32 if 64BIT
645 bool "SNI RM200/300/400"
646 select FW_ARC if CPU_LITTLE_ENDIAN
647 select FW_ARC32 if CPU_LITTLE_ENDIAN
648 select SNIPROM if CPU_BIG_ENDIAN
649 select ARCH_MAY_HAVE_PC_FDC
653 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
654 select DMA_NONCOHERENT
655 select GENERIC_ISA_DMA
656 select HAVE_PCSPKR_PLATFORM
663 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
664 select SYS_HAS_CPU_R4X00
665 select SYS_HAS_CPU_R5000
666 select SYS_HAS_CPU_R10000
667 select R5000_CPU_SCACHE
668 select SYS_HAS_EARLY_PRINTK
669 select SYS_SUPPORTS_32BIT_KERNEL
670 select SYS_SUPPORTS_64BIT_KERNEL
671 select SYS_SUPPORTS_BIG_ENDIAN
672 select SYS_SUPPORTS_HIGHMEM
673 select SYS_SUPPORTS_LITTLE_ENDIAN
675 The SNI RM200/300/400 are MIPS-based machines manufactured by
676 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
677 Technology and now in turn merged with Fujitsu. Say Y here to
678 support this machine type.
681 bool "Toshiba TX39 series based machines"
684 bool "Toshiba TX49 series based machines"
686 config MIKROTIK_RB532
687 bool "Mikrotik RB532 boards"
690 select DMA_NONCOHERENT
693 select SYS_HAS_CPU_MIPS32_R1
694 select SYS_SUPPORTS_32BIT_KERNEL
695 select SYS_SUPPORTS_LITTLE_ENDIAN
698 select ARCH_REQUIRE_GPIOLIB
700 Support the Mikrotik(tm) RouterBoard 532 series,
701 based on the IDT RC32434 SoC.
704 bool "Wind River PPMC board"
709 select DMA_NONCOHERENT
711 select PCI_GT64XXX_PCI0
713 select SYS_HAS_CPU_MIPS32_R1
714 select SYS_HAS_CPU_MIPS32_R2
715 select SYS_HAS_CPU_MIPS64_R1
716 select SYS_HAS_CPU_NEVADA
717 select SYS_HAS_CPU_RM7000
718 select SYS_SUPPORTS_32BIT_KERNEL
719 select SYS_SUPPORTS_64BIT_KERNEL
720 select SYS_SUPPORTS_BIG_ENDIAN
721 select SYS_SUPPORTS_LITTLE_ENDIAN
723 This enables support for the Wind River MIPS32 4KC PPMC evaluation
724 board, which is based on GT64120 bridge chip.
726 config CAVIUM_OCTEON_SIMULATOR
727 bool "Cavium Networks Octeon Simulator"
729 select 64BIT_PHYS_ADDR
731 select SYS_SUPPORTS_64BIT_KERNEL
732 select SYS_SUPPORTS_BIG_ENDIAN
733 select SYS_SUPPORTS_HOTPLUG_CPU
734 select SYS_HAS_CPU_CAVIUM_OCTEON
737 The Octeon simulator is software performance model of the Cavium
738 Octeon Processor. It supports simulating Octeon processors on x86
741 config CAVIUM_OCTEON_REFERENCE_BOARD
742 bool "Cavium Networks Octeon reference board"
744 select 64BIT_PHYS_ADDR
746 select SYS_SUPPORTS_64BIT_KERNEL
747 select SYS_SUPPORTS_BIG_ENDIAN
749 select SYS_SUPPORTS_HOTPLUG_CPU
750 select SYS_HAS_EARLY_PRINTK
751 select SYS_HAS_CPU_CAVIUM_OCTEON
754 select ARCH_SUPPORTS_MSI
756 select USB_ARCH_HAS_OHCI
757 select USB_ARCH_HAS_EHCI
760 This option supports all of the Octeon reference boards from Cavium
761 Networks. It builds a kernel that dynamically determines the Octeon
762 CPU type and supports all known board reference implementations.
763 Some of the supported boards are:
770 Say Y here for most Octeon reference boards.
773 bool "Netlogic XLR/XLS based systems"
776 select SYS_HAS_CPU_XLR
777 select SYS_SUPPORTS_SMP
780 select SYS_SUPPORTS_32BIT_KERNEL
781 select SYS_SUPPORTS_64BIT_KERNEL
782 select 64BIT_PHYS_ADDR
783 select SYS_SUPPORTS_BIG_ENDIAN
784 select SYS_SUPPORTS_HIGHMEM
786 select NR_CPUS_DEFAULT_32
790 select ARCH_SUPPORTS_MSI
791 select ZONE_DMA32 if 64BIT
793 select SYS_HAS_EARLY_PRINTK
794 select USB_ARCH_HAS_OHCI if USB_SUPPORT
795 select USB_ARCH_HAS_EHCI if USB_SUPPORT
797 Support for systems based on Netlogic XLR and XLS processors.
798 Say Y here if you have a XLR or XLS based board.
801 bool "Netlogic XLP based systems"
804 select SYS_HAS_CPU_XLP
805 select SYS_SUPPORTS_SMP
807 select SYS_SUPPORTS_32BIT_KERNEL
808 select SYS_SUPPORTS_64BIT_KERNEL
809 select 64BIT_PHYS_ADDR
810 select SYS_SUPPORTS_BIG_ENDIAN
811 select SYS_SUPPORTS_LITTLE_ENDIAN
812 select SYS_SUPPORTS_HIGHMEM
814 select NR_CPUS_DEFAULT_32
818 select ZONE_DMA32 if 64BIT
820 select SYS_HAS_EARLY_PRINTK
823 This board is based on Netlogic XLP Processor.
824 Say Y here if you have a XLP based board.
828 source "arch/mips/alchemy/Kconfig"
829 source "arch/mips/ath79/Kconfig"
830 source "arch/mips/bcm47xx/Kconfig"
831 source "arch/mips/bcm63xx/Kconfig"
832 source "arch/mips/jazz/Kconfig"
833 source "arch/mips/jz4740/Kconfig"
834 source "arch/mips/lantiq/Kconfig"
835 source "arch/mips/lasat/Kconfig"
836 source "arch/mips/pmc-sierra/Kconfig"
837 source "arch/mips/powertv/Kconfig"
838 source "arch/mips/sgi-ip27/Kconfig"
839 source "arch/mips/sibyte/Kconfig"
840 source "arch/mips/txx9/Kconfig"
841 source "arch/mips/vr41xx/Kconfig"
842 source "arch/mips/cavium-octeon/Kconfig"
843 source "arch/mips/loongson/Kconfig"
844 source "arch/mips/loongson1/Kconfig"
845 source "arch/mips/netlogic/Kconfig"
849 config RWSEM_GENERIC_SPINLOCK
853 config RWSEM_XCHGADD_ALGORITHM
856 config ARCH_HAS_ILOG2_U32
860 config ARCH_HAS_ILOG2_U64
864 config GENERIC_HWEIGHT
868 config GENERIC_CALIBRATE_DELAY
872 config SCHED_OMIT_FRAME_POINTER
877 # Select some configuration options automatically based on user selections.
882 config ARCH_MAY_HAVE_PC_FDC
923 select ARCH_REQUIRE_GPIOLIB
929 config ARCH_DMA_ADDR_T_64BIT
930 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
935 config DMA_NONCOHERENT
937 select NEED_DMA_MAP_STATE
939 config NEED_DMA_MAP_STATE
942 config SYS_HAS_EARLY_PRINTK
946 bool "Support for hot-pluggable CPUs"
947 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
949 Say Y here to allow turning CPUs off and on. CPUs can be
950 controlled through /sys/devices/system/cpu.
951 (Note: power management support will enable this option
952 automatically on SMP systems. )
953 Say N if you want to disable CPU hotplug.
955 config SYS_SUPPORTS_HOTPLUG_CPU
970 config MIPS_DISABLE_OBSOLETE_IDE
982 config GENERIC_ISA_DMA
984 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
987 config GENERIC_ISA_DMA_SUPPORT_BROKEN
989 select GENERIC_ISA_DMA
1001 # Endianness selection. Sufficiently obscure so many users don't know what to
1002 # answer,so we try hard to limit the available choices. Also the use of a
1003 # choice statement should be more obvious to the user.
1006 prompt "Endianness selection"
1008 Some MIPS machines can be configured for either little or big endian
1009 byte order. These modes require different kernels and a different
1010 Linux distribution. In general there is one preferred byteorder for a
1011 particular system but some systems are just as commonly used in the
1012 one or the other endianness.
1014 config CPU_BIG_ENDIAN
1016 depends on SYS_SUPPORTS_BIG_ENDIAN
1018 config CPU_LITTLE_ENDIAN
1019 bool "Little endian"
1020 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1028 config SYS_SUPPORTS_APM_EMULATION
1031 config SYS_SUPPORTS_BIG_ENDIAN
1034 config SYS_SUPPORTS_LITTLE_ENDIAN
1037 config SYS_SUPPORTS_HUGETLBFS
1039 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1042 config MIPS_HUGE_TLB_SUPPORT
1043 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1066 config MIPS_BOARDS_GEN
1069 config PCI_GT64XXX_PCI0
1072 config NO_EXCEPT_FILL
1079 select DMA_NONCOHERENT
1081 select SWAP_IO_SPACE
1082 select SYS_HAS_CPU_R5500
1083 select SYS_SUPPORTS_32BIT_KERNEL
1084 select SYS_SUPPORTS_64BIT_KERNEL
1085 select SYS_SUPPORTS_BIG_ENDIAN
1092 select DMA_NONCOHERENT
1093 select SYS_HAS_CPU_MIPS32_R2
1094 select SYS_SUPPORTS_32BIT_KERNEL
1095 select SYS_SUPPORTS_LITTLE_ENDIAN
1096 select SYS_SUPPORTS_BIG_ENDIAN
1098 select CPU_MIPSR2_IRQ_VI
1110 select DMA_NONCOHERENT
1112 select SYS_HAS_CPU_MIPS32_R1
1113 select SYS_HAS_EARLY_PRINTK
1114 select SYS_SUPPORTS_32BIT_KERNEL
1117 config SWAP_IO_SPACE
1120 config SGI_HAS_INDYDOG
1132 config SGI_HAS_ZILOG
1135 config SGI_HAS_I8042
1138 config DEFAULT_SGI_PARTITION
1150 config MIPS_L1_CACHE_SHIFT
1152 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1153 default "6" if MIPS_CPU_SCACHE
1154 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1157 config HAVE_STD_PC_SERIAL_PORT
1161 bool "ARC console support"
1162 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1166 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1171 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1180 menu "CPU selection"
1186 config CPU_LOONGSON2E
1188 depends on SYS_HAS_CPU_LOONGSON2E
1189 select CPU_LOONGSON2
1191 The Loongson 2E processor implements the MIPS III instruction set
1192 with many extensions.
1194 It has an internal FPGA northbridge, which is compatible to
1197 config CPU_LOONGSON2F
1199 depends on SYS_HAS_CPU_LOONGSON2F
1200 select CPU_LOONGSON2
1202 select ARCH_REQUIRE_GPIOLIB
1204 The Loongson 2F processor implements the MIPS III instruction set
1205 with many extensions.
1207 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1208 have a similar programming interface with FPGA northbridge used in
1211 config CPU_LOONGSON1B
1213 depends on SYS_HAS_CPU_LOONGSON1B
1214 select CPU_LOONGSON1
1216 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1217 release 2 instruction set.
1219 config CPU_MIPS32_R1
1220 bool "MIPS32 Release 1"
1221 depends on SYS_HAS_CPU_MIPS32_R1
1222 select CPU_HAS_PREFETCH
1223 select CPU_SUPPORTS_32BIT_KERNEL
1224 select CPU_SUPPORTS_HIGHMEM
1226 Choose this option to build a kernel for release 1 or later of the
1227 MIPS32 architecture. Most modern embedded systems with a 32-bit
1228 MIPS processor are based on a MIPS32 processor. If you know the
1229 specific type of processor in your system, choose those that one
1230 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1231 Release 2 of the MIPS32 architecture is available since several
1232 years so chances are you even have a MIPS32 Release 2 processor
1233 in which case you should choose CPU_MIPS32_R2 instead for better
1236 config CPU_MIPS32_R2
1237 bool "MIPS32 Release 2"
1238 depends on SYS_HAS_CPU_MIPS32_R2
1239 select CPU_HAS_PREFETCH
1240 select CPU_SUPPORTS_32BIT_KERNEL
1241 select CPU_SUPPORTS_HIGHMEM
1243 Choose this option to build a kernel for release 2 or later of the
1244 MIPS32 architecture. Most modern embedded systems with a 32-bit
1245 MIPS processor are based on a MIPS32 processor. If you know the
1246 specific type of processor in your system, choose those that one
1247 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1249 config CPU_MIPS64_R1
1250 bool "MIPS64 Release 1"
1251 depends on SYS_HAS_CPU_MIPS64_R1
1252 select CPU_HAS_PREFETCH
1253 select CPU_SUPPORTS_32BIT_KERNEL
1254 select CPU_SUPPORTS_64BIT_KERNEL
1255 select CPU_SUPPORTS_HIGHMEM
1256 select CPU_SUPPORTS_HUGEPAGES
1258 Choose this option to build a kernel for release 1 or later of the
1259 MIPS64 architecture. Many modern embedded systems with a 64-bit
1260 MIPS processor are based on a MIPS64 processor. If you know the
1261 specific type of processor in your system, choose those that one
1262 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1263 Release 2 of the MIPS64 architecture is available since several
1264 years so chances are you even have a MIPS64 Release 2 processor
1265 in which case you should choose CPU_MIPS64_R2 instead for better
1268 config CPU_MIPS64_R2
1269 bool "MIPS64 Release 2"
1270 depends on SYS_HAS_CPU_MIPS64_R2
1271 select CPU_HAS_PREFETCH
1272 select CPU_SUPPORTS_32BIT_KERNEL
1273 select CPU_SUPPORTS_64BIT_KERNEL
1274 select CPU_SUPPORTS_HIGHMEM
1275 select CPU_SUPPORTS_HUGEPAGES
1277 Choose this option to build a kernel for release 2 or later of the
1278 MIPS64 architecture. Many modern embedded systems with a 64-bit
1279 MIPS processor are based on a MIPS64 processor. If you know the
1280 specific type of processor in your system, choose those that one
1281 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1285 depends on SYS_HAS_CPU_R3000
1287 select CPU_SUPPORTS_32BIT_KERNEL
1288 select CPU_SUPPORTS_HIGHMEM
1290 Please make sure to pick the right CPU type. Linux/MIPS is not
1291 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1292 *not* work on R4000 machines and vice versa. However, since most
1293 of the supported machines have an R4000 (or similar) CPU, R4x00
1294 might be a safe bet. If the resulting kernel does not work,
1295 try to recompile with R3000.
1299 depends on SYS_HAS_CPU_TX39XX
1300 select CPU_SUPPORTS_32BIT_KERNEL
1304 depends on SYS_HAS_CPU_VR41XX
1305 select CPU_SUPPORTS_32BIT_KERNEL
1306 select CPU_SUPPORTS_64BIT_KERNEL
1308 The options selects support for the NEC VR4100 series of processors.
1309 Only choose this option if you have one of these processors as a
1310 kernel built with this option will not run on any other type of
1311 processor or vice versa.
1315 depends on SYS_HAS_CPU_R4300
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1319 MIPS Technologies R4300-series processors.
1323 depends on SYS_HAS_CPU_R4X00
1324 select CPU_SUPPORTS_32BIT_KERNEL
1325 select CPU_SUPPORTS_64BIT_KERNEL
1326 select CPU_SUPPORTS_HUGEPAGES
1328 MIPS Technologies R4000-series processors other than 4300, including
1329 the R4000, R4400, R4600, and 4700.
1333 depends on SYS_HAS_CPU_TX49XX
1334 select CPU_HAS_PREFETCH
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HUGEPAGES
1341 depends on SYS_HAS_CPU_R5000
1342 select CPU_SUPPORTS_32BIT_KERNEL
1343 select CPU_SUPPORTS_64BIT_KERNEL
1344 select CPU_SUPPORTS_HUGEPAGES
1346 MIPS Technologies R5000-series processors other than the Nevada.
1350 depends on SYS_HAS_CPU_R5432
1351 select CPU_SUPPORTS_32BIT_KERNEL
1352 select CPU_SUPPORTS_64BIT_KERNEL
1353 select CPU_SUPPORTS_HUGEPAGES
1357 depends on SYS_HAS_CPU_R5500
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HUGEPAGES
1362 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1367 depends on SYS_HAS_CPU_R6000
1368 select CPU_SUPPORTS_32BIT_KERNEL
1370 MIPS Technologies R6000 and R6000A series processors. Note these
1371 processors are extremely rare and the support for them is incomplete.
1375 depends on SYS_HAS_CPU_NEVADA
1376 select CPU_SUPPORTS_32BIT_KERNEL
1377 select CPU_SUPPORTS_64BIT_KERNEL
1378 select CPU_SUPPORTS_HUGEPAGES
1380 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1384 depends on SYS_HAS_CPU_R8000
1385 select CPU_HAS_PREFETCH
1386 select CPU_SUPPORTS_64BIT_KERNEL
1388 MIPS Technologies R8000 processors. Note these processors are
1389 uncommon and the support for them is incomplete.
1393 depends on SYS_HAS_CPU_R10000
1394 select CPU_HAS_PREFETCH
1395 select CPU_SUPPORTS_32BIT_KERNEL
1396 select CPU_SUPPORTS_64BIT_KERNEL
1397 select CPU_SUPPORTS_HIGHMEM
1398 select CPU_SUPPORTS_HUGEPAGES
1400 MIPS Technologies R10000-series processors.
1404 depends on SYS_HAS_CPU_RM7000
1405 select CPU_HAS_PREFETCH
1406 select CPU_SUPPORTS_32BIT_KERNEL
1407 select CPU_SUPPORTS_64BIT_KERNEL
1408 select CPU_SUPPORTS_HIGHMEM
1409 select CPU_SUPPORTS_HUGEPAGES
1413 depends on SYS_HAS_CPU_SB1
1414 select CPU_SUPPORTS_32BIT_KERNEL
1415 select CPU_SUPPORTS_64BIT_KERNEL
1416 select CPU_SUPPORTS_HIGHMEM
1417 select CPU_SUPPORTS_HUGEPAGES
1418 select WEAK_ORDERING
1420 config CPU_CAVIUM_OCTEON
1421 bool "Cavium Octeon processor"
1422 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1423 select ARCH_SPARSEMEM_ENABLE
1424 select CPU_HAS_PREFETCH
1425 select CPU_SUPPORTS_64BIT_KERNEL
1426 select SYS_SUPPORTS_SMP
1427 select NR_CPUS_DEFAULT_16
1428 select WEAK_ORDERING
1429 select CPU_SUPPORTS_HIGHMEM
1430 select CPU_SUPPORTS_HUGEPAGES
1434 The Cavium Octeon processor is a highly integrated chip containing
1435 many ethernet hardware widgets for networking tasks. The processor
1436 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1437 Full details can be found at http://www.caviumnetworks.com.
1439 config CPU_BMIPS3300
1441 depends on SYS_HAS_CPU_BMIPS3300
1444 Broadcom BMIPS3300 processors.
1446 config CPU_BMIPS4350
1448 depends on SYS_HAS_CPU_BMIPS4350
1450 select SYS_SUPPORTS_SMP
1451 select SYS_SUPPORTS_HOTPLUG_CPU
1453 Broadcom BMIPS4350 ("VIPER") processors.
1455 config CPU_BMIPS4380
1457 depends on SYS_HAS_CPU_BMIPS4380
1459 select SYS_SUPPORTS_SMP
1460 select SYS_SUPPORTS_HOTPLUG_CPU
1462 Broadcom BMIPS4380 processors.
1464 config CPU_BMIPS5000
1466 depends on SYS_HAS_CPU_BMIPS5000
1468 select CPU_SUPPORTS_HIGHMEM
1469 select MIPS_CPU_SCACHE
1470 select SYS_SUPPORTS_SMP
1471 select SYS_SUPPORTS_HOTPLUG_CPU
1473 Broadcom BMIPS5000 processors.
1476 bool "Netlogic XLR SoC"
1477 depends on SYS_HAS_CPU_XLR
1478 select CPU_SUPPORTS_32BIT_KERNEL
1479 select CPU_SUPPORTS_64BIT_KERNEL
1480 select CPU_SUPPORTS_HIGHMEM
1481 select CPU_SUPPORTS_HUGEPAGES
1482 select WEAK_ORDERING
1483 select WEAK_REORDERING_BEYOND_LLSC
1485 Netlogic Microsystems XLR/XLS processors.
1488 bool "Netlogic XLP SoC"
1489 depends on SYS_HAS_CPU_XLP
1490 select CPU_SUPPORTS_32BIT_KERNEL
1491 select CPU_SUPPORTS_64BIT_KERNEL
1492 select CPU_SUPPORTS_HIGHMEM
1494 select WEAK_ORDERING
1495 select WEAK_REORDERING_BEYOND_LLSC
1496 select CPU_HAS_PREFETCH
1499 Netlogic Microsystems XLP processors.
1503 config CPU_NOP_WORKAROUNDS
1506 config CPU_JUMP_WORKAROUNDS
1509 config CPU_LOONGSON2F_WORKAROUNDS
1510 bool "Loongson 2F Workarounds"
1512 select CPU_NOP_WORKAROUNDS
1513 select CPU_JUMP_WORKAROUNDS
1515 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1516 require workarounds. Without workarounds the system may hang
1517 unexpectedly. For more information please refer to the gas
1518 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1520 Loongson 2F03 and later have fixed these issues and no workarounds
1521 are needed. The workarounds have no significant side effect on them
1522 but may decrease the performance of the system so this option should
1523 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1526 If unsure, please say Y.
1527 endif # CPU_LOONGSON2F
1529 config SYS_SUPPORTS_ZBOOT
1531 select HAVE_KERNEL_GZIP
1532 select HAVE_KERNEL_BZIP2
1533 select HAVE_KERNEL_LZMA
1534 select HAVE_KERNEL_LZO
1536 config SYS_SUPPORTS_ZBOOT_UART16550
1538 select SYS_SUPPORTS_ZBOOT
1540 config CPU_LOONGSON2
1542 select CPU_SUPPORTS_32BIT_KERNEL
1543 select CPU_SUPPORTS_64BIT_KERNEL
1544 select CPU_SUPPORTS_HIGHMEM
1545 select CPU_SUPPORTS_HUGEPAGES
1547 config CPU_LOONGSON1
1551 select CPU_HAS_PREFETCH
1552 select CPU_SUPPORTS_32BIT_KERNEL
1553 select CPU_SUPPORTS_HIGHMEM
1558 select CPU_SUPPORTS_32BIT_KERNEL
1559 select DMA_NONCOHERENT
1561 select SWAP_IO_SPACE
1562 select WEAK_ORDERING
1564 config SYS_HAS_CPU_LOONGSON2E
1567 config SYS_HAS_CPU_LOONGSON2F
1569 select CPU_SUPPORTS_CPUFREQ
1570 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1571 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1573 config SYS_HAS_CPU_LOONGSON1B
1576 config SYS_HAS_CPU_MIPS32_R1
1579 config SYS_HAS_CPU_MIPS32_R2
1582 config SYS_HAS_CPU_MIPS64_R1
1585 config SYS_HAS_CPU_MIPS64_R2
1588 config SYS_HAS_CPU_R3000
1591 config SYS_HAS_CPU_TX39XX
1594 config SYS_HAS_CPU_VR41XX
1597 config SYS_HAS_CPU_R4300
1600 config SYS_HAS_CPU_R4X00
1603 config SYS_HAS_CPU_TX49XX
1606 config SYS_HAS_CPU_R5000
1609 config SYS_HAS_CPU_R5432
1612 config SYS_HAS_CPU_R5500
1615 config SYS_HAS_CPU_R6000
1618 config SYS_HAS_CPU_NEVADA
1621 config SYS_HAS_CPU_R8000
1624 config SYS_HAS_CPU_R10000
1627 config SYS_HAS_CPU_RM7000
1630 config SYS_HAS_CPU_SB1
1633 config SYS_HAS_CPU_CAVIUM_OCTEON
1636 config SYS_HAS_CPU_BMIPS3300
1639 config SYS_HAS_CPU_BMIPS4350
1642 config SYS_HAS_CPU_BMIPS4380
1645 config SYS_HAS_CPU_BMIPS5000
1648 config SYS_HAS_CPU_XLR
1651 config SYS_HAS_CPU_XLP
1655 # CPU may reorder R->R, R->W, W->R, W->W
1656 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1658 config WEAK_ORDERING
1662 # CPU may reorder reads and writes beyond LL/SC
1663 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1665 config WEAK_REORDERING_BEYOND_LLSC
1670 # These two indicate any level of the MIPS32 and MIPS64 architecture
1674 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1678 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1681 # These two indicate the revision of the architecture, either Release 1 or Release 2
1685 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1689 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1691 config SYS_SUPPORTS_32BIT_KERNEL
1693 config SYS_SUPPORTS_64BIT_KERNEL
1695 config CPU_SUPPORTS_32BIT_KERNEL
1697 config CPU_SUPPORTS_64BIT_KERNEL
1699 config CPU_SUPPORTS_CPUFREQ
1701 config CPU_SUPPORTS_ADDRWINCFG
1703 config CPU_SUPPORTS_HUGEPAGES
1705 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1707 config MIPS_PGD_C0_CONTEXT
1709 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1712 # Set to y for ptrace access to watch registers.
1714 config HARDWARE_WATCHPOINTS
1716 default y if CPU_MIPSR1 || CPU_MIPSR2
1721 prompt "Kernel code model"
1723 You should only select this option if you have a workload that
1724 actually benefits from 64-bit processing or if your machine has
1725 large memory. You will only be presented a single option in this
1726 menu if your system does not support both 32-bit and 64-bit kernels.
1729 bool "32-bit kernel"
1730 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1733 Select this option if you want to build a 32-bit kernel.
1735 bool "64-bit kernel"
1736 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1737 select HAVE_SYSCALL_WRAPPERS
1739 Select this option if you want to build a 64-bit kernel.
1744 prompt "Kernel page size"
1745 default PAGE_SIZE_4KB
1747 config PAGE_SIZE_4KB
1749 depends on !CPU_LOONGSON2
1751 This option select the standard 4kB Linux page size. On some
1752 R3000-family processors this is the only available page size. Using
1753 4kB page size will minimize memory consumption and is therefore
1754 recommended for low memory systems.
1756 config PAGE_SIZE_8KB
1758 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1760 Using 8kB page size will result in higher performance kernel at
1761 the price of higher memory consumption. This option is available
1762 only on R8000 and cnMIPS processors. Note that you will need a
1763 suitable Linux distribution to support this.
1765 config PAGE_SIZE_16KB
1767 depends on !CPU_R3000 && !CPU_TX39XX
1769 Using 16kB page size will result in higher performance kernel at
1770 the price of higher memory consumption. This option is available on
1771 all non-R3000 family processors. Note that you will need a suitable
1772 Linux distribution to support this.
1774 config PAGE_SIZE_32KB
1776 depends on CPU_CAVIUM_OCTEON
1778 Using 32kB page size will result in higher performance kernel at
1779 the price of higher memory consumption. This option is available
1780 only on cnMIPS cores. Note that you will need a suitable Linux
1781 distribution to support this.
1783 config PAGE_SIZE_64KB
1785 depends on !CPU_R3000 && !CPU_TX39XX
1787 Using 64kB page size will result in higher performance kernel at
1788 the price of higher memory consumption. This option is available on
1789 all non-R3000 family processor. Not that at the time of this
1790 writing this option is still high experimental.
1794 config FORCE_MAX_ZONEORDER
1795 int "Maximum zone order"
1796 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1797 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1798 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1799 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1800 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1801 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1805 The kernel memory allocator divides physically contiguous memory
1806 blocks into "zones", where each zone is a power of two number of
1807 pages. This option selects the largest power of two that the kernel
1808 keeps in the memory allocator. If you need to allocate very large
1809 blocks of physically contiguous memory, then you may need to
1810 increase this value.
1812 This config option is actually maximum order plus one. For example,
1813 a value of 11 means that the largest free memory block is 2^10 pages.
1815 The page size is not necessarily 4KB. Keep this in mind
1816 when choosing a value for this option.
1821 config IP22_CPU_SCACHE
1826 # Support for a MIPS32 / MIPS64 style S-caches
1828 config MIPS_CPU_SCACHE
1832 config R5000_CPU_SCACHE
1836 config RM7000_CPU_SCACHE
1840 config SIBYTE_DMA_PAGEOPS
1841 bool "Use DMA to clear/copy pages"
1844 Instead of using the CPU to zero and copy pages, use a Data Mover
1845 channel. These DMA channels are otherwise unused by the standard
1846 SiByte Linux port. Seems to give a small performance benefit.
1848 config CPU_HAS_PREFETCH
1851 config CPU_GENERIC_DUMP_TLB
1853 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1857 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1859 config CPU_R4K_CACHE_TLB
1861 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1864 prompt "MIPS MT options"
1866 config MIPS_MT_DISABLED
1867 bool "Disable multithreading support."
1869 Use this option if your workload can't take advantage of
1870 MIPS hardware multithreading support. On systems that don't have
1871 the option of an MT-enabled processor this option will be the only
1872 option in this menu.
1875 bool "Use 1 TC on each available VPE for SMP"
1876 depends on SYS_SUPPORTS_MULTITHREADING
1877 select CPU_MIPSR2_IRQ_VI
1878 select CPU_MIPSR2_IRQ_EI
1880 select NR_CPUS_DEFAULT_2
1882 select SYS_SUPPORTS_SCHED_SMT if SMP
1883 select SYS_SUPPORTS_SMP
1885 select MIPS_PERF_SHARED_TC_COUNTERS
1887 This is a kernel model which is known a VSMP but lately has been
1888 marketesed into SMVP.
1889 Virtual SMP uses the processor's VPEs to implement virtual
1890 processors. In currently available configuration of the 34K processor
1891 this allows for a dual processor. Both processors will share the same
1892 primary caches; each will obtain the half of the TLB for it's own
1893 exclusive use. For a layman this model can be described as similar to
1894 what Intel calls Hyperthreading.
1896 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1899 bool "SMTC: Use all TCs on all VPEs for SMP"
1900 depends on CPU_MIPS32_R2
1901 #depends on CPU_MIPS64_R2 # once there is hardware ...
1902 depends on SYS_SUPPORTS_MULTITHREADING
1903 select CPU_MIPSR2_IRQ_VI
1904 select CPU_MIPSR2_IRQ_EI
1906 select NR_CPUS_DEFAULT_8
1908 select SYS_SUPPORTS_SMP
1911 This is a kernel model which is known a SMTC or lately has been
1912 marketesed into SMVP.
1913 is presenting the available TC's of the core as processors to Linux.
1914 On currently available 34K processors this means a Linux system will
1915 see up to 5 processors. The implementation of the SMTC kernel differs
1916 significantly from VSMP and cannot efficiently coexist in the same
1917 kernel binary so the choice between VSMP and SMTC is a compile time
1920 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1928 bool "SMT (multithreading) scheduler support"
1929 depends on SYS_SUPPORTS_SCHED_SMT
1932 SMT scheduler support improves the CPU scheduler's decision making
1933 when dealing with MIPS MT enabled cores at a cost of slightly
1934 increased overhead in some places. If unsure say N here.
1936 config SYS_SUPPORTS_SCHED_SMT
1939 config SYS_SUPPORTS_MULTITHREADING
1942 config MIPS_MT_FPAFF
1943 bool "Dynamic FPU affinity for FP-intensive threads"
1945 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1947 config MIPS_VPE_LOADER
1948 bool "VPE loader support."
1949 depends on SYS_SUPPORTS_MULTITHREADING
1950 select CPU_MIPSR2_IRQ_VI
1951 select CPU_MIPSR2_IRQ_EI
1954 Includes a loader for loading an elf relocatable object
1955 onto another VPE and running it.
1957 config MIPS_MT_SMTC_IM_BACKSTOP
1958 bool "Use per-TC register bits as backstop for inhibited IM bits"
1959 depends on MIPS_MT_SMTC
1962 To support multiple TC microthreads acting as "CPUs" within
1963 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1964 during interrupt handling. To support legacy drivers and interrupt
1965 controller management code, SMTC has a "backstop" to track and
1966 if necessary restore the interrupt mask. This has some performance
1967 impact on interrupt service overhead.
1969 config MIPS_MT_SMTC_IRQAFF
1970 bool "Support IRQ affinity API"
1971 depends on MIPS_MT_SMTC
1974 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1975 for SMTC Linux kernel. Requires platform support, of which
1976 an example can be found in the MIPS kernel i8259 and Malta
1977 platform code. Adds some overhead to interrupt dispatch, and
1978 should be used only if you know what you are doing.
1980 config MIPS_VPE_LOADER_TOM
1981 bool "Load VPE program into memory hidden from linux"
1982 depends on MIPS_VPE_LOADER
1985 The loader can use memory that is present but has been hidden from
1986 Linux using the kernel command line option "mem=xxMB". It's up to
1987 you to ensure the amount you put in the option and the space your
1988 program requires is less or equal to the amount physically present.
1990 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1991 config MIPS_VPE_APSP_API
1992 bool "Enable support for AP/SP API (RTLX)"
1993 depends on MIPS_VPE_LOADER
1997 bool "MIPS CMP framework support"
1998 depends on SYS_SUPPORTS_MIPS_CMP
2000 select SYS_SUPPORTS_SMP
2001 select SYS_SUPPORTS_SCHED_SMT if SMP
2002 select WEAK_ORDERING
2005 This is a placeholder option for the GCMP work. It will need to
2006 be handled differently...
2008 config SB1_PASS_1_WORKAROUNDS
2010 depends on CPU_SB1_PASS_1
2013 config SB1_PASS_2_WORKAROUNDS
2015 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2018 config SB1_PASS_2_1_WORKAROUNDS
2020 depends on CPU_SB1 && CPU_SB1_PASS_2
2023 config 64BIT_PHYS_ADDR
2026 config ARCH_PHYS_ADDR_T_64BIT
2027 def_bool 64BIT_PHYS_ADDR
2029 config CPU_HAS_SMARTMIPS
2030 depends on SYS_SUPPORTS_SMARTMIPS
2031 bool "Support for the SmartMIPS ASE"
2033 SmartMIPS is a extension of the MIPS32 architecture aimed at
2034 increased security at both hardware and software level for
2035 smartcards. Enabling this option will allow proper use of the
2036 SmartMIPS instructions by Linux applications. However a kernel with
2037 this option will not work on a MIPS core without SmartMIPS core. If
2038 you don't know you probably don't have SmartMIPS and should say N
2048 # Vectored interrupt mode is an R2 feature
2050 config CPU_MIPSR2_IRQ_VI
2054 # Extended interrupt mode is an R2 feature
2056 config CPU_MIPSR2_IRQ_EI
2061 depends on !CPU_R3000
2067 config CPU_DADDI_WORKAROUNDS
2070 config CPU_R4000_WORKAROUNDS
2072 select CPU_R4400_WORKAROUNDS
2074 config CPU_R4400_WORKAROUNDS
2078 # - Highmem only makes sense for the 32-bit kernel.
2079 # - The current highmem code will only work properly on physically indexed
2080 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2081 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2082 # moment we protect the user and offer the highmem option only on machines
2083 # where it's known to be safe. This will not offer highmem on a few systems
2084 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2085 # indexed CPUs but we're playing safe.
2086 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2087 # know they might have memory configurations that could make use of highmem
2091 bool "High Memory Support"
2092 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2094 config CPU_SUPPORTS_HIGHMEM
2097 config SYS_SUPPORTS_HIGHMEM
2100 config SYS_SUPPORTS_SMARTMIPS
2103 config ARCH_FLATMEM_ENABLE
2105 depends on !NUMA && !CPU_LOONGSON2
2107 config ARCH_DISCONTIGMEM_ENABLE
2109 default y if SGI_IP27
2111 Say Y to support efficient handling of discontiguous physical memory,
2112 for architectures which are either NUMA (Non-Uniform Memory Access)
2113 or have huge holes in the physical address space for other reasons.
2114 See <file:Documentation/vm/numa> for more.
2116 config ARCH_SPARSEMEM_ENABLE
2118 select SPARSEMEM_STATIC
2122 depends on SYS_SUPPORTS_NUMA
2124 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2125 Access). This option improves performance on systems with more
2126 than two nodes; on two node systems it is generally better to
2127 leave it disabled; on single node systems disable this option
2130 config SYS_SUPPORTS_NUMA
2136 depends on NEED_MULTIPLE_NODES
2138 config HW_PERF_EVENTS
2139 bool "Enable hardware performance counter support for perf events"
2140 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2143 Enable hardware performance counter support for perf events. If
2144 disabled, perf events will use software events only.
2149 bool "Multi-Processing support"
2150 depends on SYS_SUPPORTS_SMP
2151 select USE_GENERIC_SMP_HELPERS
2153 This enables support for systems with more than one CPU. If you have
2154 a system with only one CPU, like most personal computers, say N. If
2155 you have a system with more than one CPU, say Y.
2157 If you say N here, the kernel will run on single and multiprocessor
2158 machines, but will use only one CPU of a multiprocessor machine. If
2159 you say Y here, the kernel will run on many, but not all,
2160 singleprocessor machines. On a singleprocessor machine, the kernel
2161 will run faster if you say N here.
2163 People using multiprocessor machines who say Y here should also say
2164 Y to "Enhanced Real Time Clock Support", below.
2166 See also the SMP-HOWTO available at
2167 <http://www.tldp.org/docs.html#howto>.
2169 If you don't know what to do here, say N.
2174 config SYS_SUPPORTS_MIPS_CMP
2177 config SYS_SUPPORTS_SMP
2180 config NR_CPUS_DEFAULT_1
2183 config NR_CPUS_DEFAULT_2
2186 config NR_CPUS_DEFAULT_4
2189 config NR_CPUS_DEFAULT_8
2192 config NR_CPUS_DEFAULT_16
2195 config NR_CPUS_DEFAULT_32
2198 config NR_CPUS_DEFAULT_64
2202 int "Maximum number of CPUs (2-64)"
2203 range 1 64 if NR_CPUS_DEFAULT_1
2205 default "1" if NR_CPUS_DEFAULT_1
2206 default "2" if NR_CPUS_DEFAULT_2
2207 default "4" if NR_CPUS_DEFAULT_4
2208 default "8" if NR_CPUS_DEFAULT_8
2209 default "16" if NR_CPUS_DEFAULT_16
2210 default "32" if NR_CPUS_DEFAULT_32
2211 default "64" if NR_CPUS_DEFAULT_64
2213 This allows you to specify the maximum number of CPUs which this
2214 kernel will support. The maximum supported value is 32 for 32-bit
2215 kernel and 64 for 64-bit kernels; the minimum value which makes
2216 sense is 1 for Qemu (useful only for kernel debugging purposes)
2217 and 2 for all others.
2219 This is purely to save memory - each supported CPU adds
2220 approximately eight kilobytes to the kernel image. For best
2221 performance should round up your number of processors to the next
2224 config MIPS_PERF_SHARED_TC_COUNTERS
2228 # Timer Interrupt Frequency Configuration
2232 prompt "Timer frequency"
2235 Allows the configuration of the timer frequency.
2238 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2241 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2244 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2247 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2250 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2253 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2256 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2260 config SYS_SUPPORTS_48HZ
2263 config SYS_SUPPORTS_100HZ
2266 config SYS_SUPPORTS_128HZ
2269 config SYS_SUPPORTS_250HZ
2272 config SYS_SUPPORTS_256HZ
2275 config SYS_SUPPORTS_1000HZ
2278 config SYS_SUPPORTS_1024HZ
2281 config SYS_SUPPORTS_ARBIT_HZ
2283 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2284 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2285 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2286 !SYS_SUPPORTS_1024HZ
2291 default 100 if HZ_100
2292 default 128 if HZ_128
2293 default 250 if HZ_250
2294 default 256 if HZ_256
2295 default 1000 if HZ_1000
2296 default 1024 if HZ_1024
2298 source "kernel/Kconfig.preempt"
2301 bool "Kexec system call"
2303 kexec is a system call that implements the ability to shutdown your
2304 current kernel, and to start another kernel. It is like a reboot
2305 but it is independent of the system firmware. And like a reboot
2306 you can start any kernel with it, not just Linux.
2308 The name comes from the similarity to the exec system call.
2310 It is an ongoing process to be certain the hardware in a machine
2311 is properly shutdown, so do not be surprised if this code does not
2312 initially work for you. It may help to enable device hotplugging
2313 support. As of this writing the exact hardware interface is
2314 strongly in flux, so no good recommendation can be made.
2317 bool "Kernel crash dumps"
2319 Generate crash dump after being started by kexec.
2320 This should be normally only set in special crash dump kernels
2321 which are loaded in the main kernel with kexec-tools into
2322 a specially reserved region and then later executed after
2323 a crash by kdump/kexec. The crash dump kernel must be compiled
2324 to a memory address not used by the main kernel or firmware using
2327 config PHYSICAL_START
2328 hex "Physical address where the kernel is loaded"
2329 default "0xffffffff84000000" if 64BIT
2330 default "0x84000000" if 32BIT
2331 depends on CRASH_DUMP
2333 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2334 If you plan to use kernel for capturing the crash dump change
2335 this value to start of the reserved region (the "X" value as
2336 specified in the "crashkernel=YM@XM" command line boot parameter
2337 passed to the panic-ed kernel).
2340 bool "Enable seccomp to safely compute untrusted bytecode"
2344 This kernel feature is useful for number crunching applications
2345 that may need to compute untrusted bytecode during their
2346 execution. By using pipes or other transports made available to
2347 the process as file descriptors supporting the read/write
2348 syscalls, it's possible to isolate those applications in
2349 their own address space using seccomp. Once seccomp is
2350 enabled via /proc/<pid>/seccomp, it cannot be disabled
2351 and the task is only allowed to execute a few safe syscalls
2352 defined by each seccomp mode.
2354 If unsure, say Y. Only embedded should say N here.
2359 select OF_EARLY_FLATTREE
2364 config LOCKDEP_SUPPORT
2368 config STACKTRACE_SUPPORT
2372 source "init/Kconfig"
2374 source "kernel/Kconfig.freezer"
2376 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2384 bool "Support for PCI controller"
2385 depends on HW_HAS_PCI
2387 select GENERIC_PCI_IOMAP
2388 select NO_GENERIC_PCI_IOPORT_MAP
2390 Find out whether you have a PCI motherboard. PCI is the name of a
2391 bus system, i.e. the way the CPU talks to the other stuff inside
2392 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2398 source "drivers/pci/Kconfig"
2400 source "drivers/pci/pcie/Kconfig"
2403 # ISA support is now enabled via select. Too many systems still have the one
2404 # or other ISA chip on the board that users don't know about so don't expect
2405 # users to choose the right thing ...
2412 depends on HW_HAS_EISA
2414 select GENERIC_ISA_DMA
2416 The Extended Industry Standard Architecture (EISA) bus was
2417 developed as an open alternative to the IBM MicroChannel bus.
2419 The EISA bus provided some of the features of the IBM MicroChannel
2420 bus while maintaining backward compatibility with cards made for
2421 the older ISA bus. The EISA bus saw limited use between 1988 and
2422 1995 when it was made obsolete by the PCI bus.
2424 Say Y here if you are building a kernel for an EISA-based machine.
2428 source "drivers/eisa/Kconfig"
2431 bool "TURBOchannel support"
2432 depends on MACH_DECSTATION
2434 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2435 processors. TURBOchannel programming specifications are available
2437 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2439 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2440 Linux driver support status is documented at:
2441 <http://www.linux-mips.org/wiki/DECstation>
2451 select MIPS_EXTERNAL_TIMER
2456 source "drivers/pcmcia/Kconfig"
2458 source "drivers/pci/hotplug/Kconfig"
2461 bool "RapidIO support"
2465 If you say Y here, the kernel will include drivers and
2466 infrastructure code to support RapidIO interconnect devices.
2468 source "drivers/rapidio/Kconfig"
2472 menu "Executable file formats"
2474 source "fs/Kconfig.binfmt"
2479 config MIPS32_COMPAT
2480 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2483 Select this option if you want Linux/MIPS 32-bit binary
2484 compatibility. Since all software available for Linux/MIPS is
2485 currently 32-bit you should say Y here.
2489 depends on MIPS32_COMPAT
2490 select ARCH_WANT_OLD_COMPAT_IPC
2493 config SYSVIPC_COMPAT
2495 depends on COMPAT && SYSVIPC
2499 bool "Kernel support for o32 binaries"
2500 depends on MIPS32_COMPAT
2502 Select this option if you want to run o32 binaries. These are pure
2503 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2504 existing binaries are in this format.
2509 bool "Kernel support for n32 binaries"
2510 depends on MIPS32_COMPAT
2512 Select this option if you want to run n32 binaries. These are
2513 64-bit binaries using 32-bit quantities for addressing and certain
2514 data that would normally be 64-bit. They are used in special
2521 default y if MIPS32_O32 || MIPS32_N32
2525 menu "Power management options"
2527 config ARCH_HIBERNATION_POSSIBLE
2529 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2531 config ARCH_SUSPEND_POSSIBLE
2533 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2535 source "kernel/power/Kconfig"
2539 source "arch/mips/kernel/cpufreq/Kconfig"
2541 source "net/Kconfig"
2543 source "drivers/Kconfig"
2545 source "drivers/firmware/Kconfig"
2549 source "arch/mips/Kconfig.debug"
2551 source "security/Kconfig"
2553 source "crypto/Kconfig"
2555 source "lib/Kconfig"