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
115 select SYS_SUPPORTS_32BIT_KERNEL
116 select SYS_SUPPORTS_LITTLE_ENDIAN
118 select SYS_HAS_EARLY_PRINTK
120 Support for BCM47XX based boards
123 bool "Broadcom BCM63XX based boards"
126 select DMA_NONCOHERENT
128 select SYS_HAS_CPU_MIPS32_R1
129 select SYS_SUPPORTS_32BIT_KERNEL
130 select SYS_SUPPORTS_BIG_ENDIAN
131 select SYS_HAS_EARLY_PRINTK
133 select ARCH_REQUIRE_GPIOLIB
136 Support for BCM63XX based boards
143 select DMA_NONCOHERENT
149 select PCI_GT64XXX_PCI0
151 select SYS_HAS_CPU_NEVADA
152 select SYS_HAS_EARLY_PRINTK
153 select SYS_SUPPORTS_32BIT_KERNEL
154 select SYS_SUPPORTS_64BIT_KERNEL
155 select SYS_SUPPORTS_LITTLE_ENDIAN
157 config MACH_DECSTATION
164 select CPU_DADDI_WORKAROUNDS if 64BIT
165 select CPU_R4000_WORKAROUNDS if 64BIT
166 select CPU_R4400_WORKAROUNDS if 64BIT
167 select DMA_NONCOHERENT
170 select SYS_HAS_CPU_R3000
171 select SYS_HAS_CPU_R4X00
172 select SYS_SUPPORTS_32BIT_KERNEL
173 select SYS_SUPPORTS_64BIT_KERNEL 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.
423 select CPU_MIPSR2_IRQ_VI
424 select CPU_MIPSR2_IRQ_EI
426 select DMA_NONCOHERENT
428 select SYS_HAS_EARLY_PRINTK
429 select SYS_HAS_CPU_MIPS32_R2
430 select SYS_SUPPORTS_32BIT_KERNEL
431 select SYS_SUPPORTS_BIG_ENDIAN
432 select SYS_SUPPORTS_HIGHMEM
433 select USB_OHCI_LITTLE_ENDIAN
435 This enables support for the Cisco PowerTV Platform.
438 bool "SGI IP22 (Indy/Indigo2)"
444 select DEFAULT_SGI_PARTITION
445 select DMA_NONCOHERENT
449 select IP22_CPU_SCACHE
451 select GENERIC_ISA_DMA_SUPPORT_BROKEN
453 select SGI_HAS_INDYDOG
459 select SYS_HAS_CPU_R4X00
460 select SYS_HAS_CPU_R5000
462 # Disable EARLY_PRINTK for now since it leads to overwritten prom
463 # memory during early boot on some machines.
465 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
466 # for a more details discussion
468 # select SYS_HAS_EARLY_PRINTK
469 select SYS_SUPPORTS_32BIT_KERNEL
470 select SYS_SUPPORTS_64BIT_KERNEL
471 select SYS_SUPPORTS_BIG_ENDIAN
473 This are the SGI Indy, Challenge S and Indigo2, as well as certain
474 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
475 that runs on these, say Y here.
478 bool "SGI IP27 (Origin200/2000)"
482 select DEFAULT_SGI_PARTITION
484 select SYS_HAS_EARLY_PRINTK
486 select NR_CPUS_DEFAULT_64
487 select SYS_HAS_CPU_R10000
488 select SYS_SUPPORTS_64BIT_KERNEL
489 select SYS_SUPPORTS_BIG_ENDIAN
490 select SYS_SUPPORTS_NUMA
491 select SYS_SUPPORTS_SMP
493 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
494 workstations. To compile a Linux kernel that runs on these, say Y
498 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
499 depends on EXPERIMENTAL
505 select DEFAULT_SGI_PARTITION
506 select DMA_NONCOHERENT
507 select GENERIC_ISA_DMA_SUPPORT_BROKEN
513 select SGI_HAS_INDYDOG
519 select SYS_HAS_CPU_R10000
521 # Disable EARLY_PRINTK for now since it leads to overwritten prom
522 # memory during early boot on some machines.
524 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
525 # for a more details discussion
527 # select SYS_HAS_EARLY_PRINTK
528 select SYS_SUPPORTS_64BIT_KERNEL
529 select SYS_SUPPORTS_BIG_ENDIAN
531 This is the SGI Indigo2 with R10000 processor. To compile a Linux
532 kernel that runs on these, say Y here.
541 select DMA_NONCOHERENT
544 select R5000_CPU_SCACHE
545 select RM7000_CPU_SCACHE
546 select SYS_HAS_CPU_R5000
547 select SYS_HAS_CPU_R10000 if BROKEN
548 select SYS_HAS_CPU_RM7000
549 select SYS_HAS_CPU_NEVADA
550 select SYS_SUPPORTS_64BIT_KERNEL
551 select SYS_SUPPORTS_BIG_ENDIAN
553 If you want this kernel to run on SGI O2 workstation, say Y here.
556 bool "Sibyte BCM91120C-CRhine"
557 depends on EXPERIMENTAL
560 select SIBYTE_BCM1120
562 select SYS_HAS_CPU_SB1
563 select SYS_SUPPORTS_BIG_ENDIAN
564 select SYS_SUPPORTS_LITTLE_ENDIAN
567 bool "Sibyte BCM91120x-Carmel"
568 depends on EXPERIMENTAL
571 select SIBYTE_BCM1120
573 select SYS_HAS_CPU_SB1
574 select SYS_SUPPORTS_BIG_ENDIAN
575 select SYS_SUPPORTS_LITTLE_ENDIAN
578 bool "Sibyte BCM91125C-CRhone"
579 depends on EXPERIMENTAL
582 select SIBYTE_BCM1125
584 select SYS_HAS_CPU_SB1
585 select SYS_SUPPORTS_BIG_ENDIAN
586 select SYS_SUPPORTS_HIGHMEM
587 select SYS_SUPPORTS_LITTLE_ENDIAN
590 bool "Sibyte BCM91125E-Rhone"
591 depends on EXPERIMENTAL
594 select SIBYTE_BCM1125H
596 select SYS_HAS_CPU_SB1
597 select SYS_SUPPORTS_BIG_ENDIAN
598 select SYS_SUPPORTS_LITTLE_ENDIAN
601 bool "Sibyte BCM91250A-SWARM"
604 select HAVE_PATA_PLATFORM
605 select NR_CPUS_DEFAULT_2
608 select SYS_HAS_CPU_SB1
609 select SYS_SUPPORTS_BIG_ENDIAN
610 select SYS_SUPPORTS_HIGHMEM
611 select SYS_SUPPORTS_LITTLE_ENDIAN
612 select ZONE_DMA32 if 64BIT
614 config SIBYTE_LITTLESUR
615 bool "Sibyte BCM91250C2-LittleSur"
616 depends on EXPERIMENTAL
619 select HAVE_PATA_PLATFORM
620 select NR_CPUS_DEFAULT_2
623 select SYS_HAS_CPU_SB1
624 select SYS_SUPPORTS_BIG_ENDIAN
625 select SYS_SUPPORTS_HIGHMEM
626 select SYS_SUPPORTS_LITTLE_ENDIAN
628 config SIBYTE_SENTOSA
629 bool "Sibyte BCM91250E-Sentosa"
630 depends on EXPERIMENTAL
633 select NR_CPUS_DEFAULT_2
636 select SYS_HAS_CPU_SB1
637 select SYS_SUPPORTS_BIG_ENDIAN
638 select SYS_SUPPORTS_LITTLE_ENDIAN
641 bool "Sibyte BCM91480B-BigSur"
644 select NR_CPUS_DEFAULT_4
645 select SIBYTE_BCM1x80
647 select SYS_HAS_CPU_SB1
648 select SYS_SUPPORTS_BIG_ENDIAN
649 select SYS_SUPPORTS_HIGHMEM
650 select SYS_SUPPORTS_LITTLE_ENDIAN
651 select ZONE_DMA32 if 64BIT
654 bool "SNI RM200/300/400"
655 select FW_ARC if CPU_LITTLE_ENDIAN
656 select FW_ARC32 if CPU_LITTLE_ENDIAN
657 select SNIPROM if CPU_BIG_ENDIAN
658 select ARCH_MAY_HAVE_PC_FDC
662 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
663 select DMA_NONCOHERENT
664 select GENERIC_ISA_DMA
665 select HAVE_PCSPKR_PLATFORM
672 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
673 select SYS_HAS_CPU_R4X00
674 select SYS_HAS_CPU_R5000
675 select SYS_HAS_CPU_R10000
676 select R5000_CPU_SCACHE
677 select SYS_HAS_EARLY_PRINTK
678 select SYS_SUPPORTS_32BIT_KERNEL
679 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
680 select SYS_SUPPORTS_BIG_ENDIAN
681 select SYS_SUPPORTS_HIGHMEM
682 select SYS_SUPPORTS_LITTLE_ENDIAN
684 The SNI RM200/300/400 are MIPS-based machines manufactured by
685 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
686 Technology and now in turn merged with Fujitsu. Say Y here to
687 support this machine type.
690 bool "Toshiba TX39 series based machines"
693 bool "Toshiba TX49 series based machines"
695 config MIKROTIK_RB532
696 bool "Mikrotik RB532 boards"
699 select DMA_NONCOHERENT
702 select SYS_HAS_CPU_MIPS32_R1
703 select SYS_SUPPORTS_32BIT_KERNEL
704 select SYS_SUPPORTS_LITTLE_ENDIAN
707 select ARCH_REQUIRE_GPIOLIB
709 Support the Mikrotik(tm) RouterBoard 532 series,
710 based on the IDT RC32434 SoC.
713 bool "Wind River PPMC board"
718 select DMA_NONCOHERENT
720 select PCI_GT64XXX_PCI0
722 select SYS_HAS_CPU_MIPS32_R1
723 select SYS_HAS_CPU_MIPS32_R2
724 select SYS_HAS_CPU_MIPS64_R1
725 select SYS_HAS_CPU_NEVADA
726 select SYS_HAS_CPU_RM7000
727 select SYS_SUPPORTS_32BIT_KERNEL
728 select SYS_SUPPORTS_64BIT_KERNEL
729 select SYS_SUPPORTS_BIG_ENDIAN
730 select SYS_SUPPORTS_LITTLE_ENDIAN
732 This enables support for the Wind River MIPS32 4KC PPMC evaluation
733 board, which is based on GT64120 bridge chip.
735 config CAVIUM_OCTEON_SIMULATOR
736 bool "Cavium Networks Octeon Simulator"
738 select 64BIT_PHYS_ADDR
740 select SYS_SUPPORTS_64BIT_KERNEL
741 select SYS_SUPPORTS_BIG_ENDIAN
742 select SYS_SUPPORTS_HOTPLUG_CPU
743 select SYS_HAS_CPU_CAVIUM_OCTEON
746 The Octeon simulator is software performance model of the Cavium
747 Octeon Processor. It supports simulating Octeon processors on x86
750 config CAVIUM_OCTEON_REFERENCE_BOARD
751 bool "Cavium Networks Octeon reference board"
753 select 64BIT_PHYS_ADDR
755 select SYS_SUPPORTS_64BIT_KERNEL
756 select SYS_SUPPORTS_BIG_ENDIAN
758 select SYS_SUPPORTS_HOTPLUG_CPU
759 select SYS_HAS_EARLY_PRINTK
760 select SYS_HAS_CPU_CAVIUM_OCTEON
763 select ARCH_SUPPORTS_MSI
765 select USB_ARCH_HAS_OHCI
766 select USB_ARCH_HAS_EHCI
769 This option supports all of the Octeon reference boards from Cavium
770 Networks. It builds a kernel that dynamically determines the Octeon
771 CPU type and supports all known board reference implementations.
772 Some of the supported boards are:
779 Say Y here for most Octeon reference boards.
782 bool "Netlogic XLR/XLS based systems"
783 depends on EXPERIMENTAL
786 select SYS_HAS_CPU_XLR
787 select SYS_SUPPORTS_SMP
790 select SYS_SUPPORTS_32BIT_KERNEL
791 select SYS_SUPPORTS_64BIT_KERNEL
792 select 64BIT_PHYS_ADDR
793 select SYS_SUPPORTS_BIG_ENDIAN
794 select SYS_SUPPORTS_HIGHMEM
796 select NR_CPUS_DEFAULT_32
800 select ARCH_SUPPORTS_MSI
801 select ZONE_DMA if 64BIT
803 select SYS_HAS_EARLY_PRINTK
804 select USB_ARCH_HAS_OHCI if USB_SUPPORT
805 select USB_ARCH_HAS_EHCI if USB_SUPPORT
807 Support for systems based on Netlogic XLR and XLS processors.
808 Say Y here if you have a XLR or XLS based board.
811 bool "Netlogic XLP based systems"
812 depends on EXPERIMENTAL
815 select SYS_HAS_CPU_XLP
816 select SYS_SUPPORTS_SMP
818 select SYS_SUPPORTS_32BIT_KERNEL
819 select SYS_SUPPORTS_64BIT_KERNEL
820 select 64BIT_PHYS_ADDR
821 select SYS_SUPPORTS_BIG_ENDIAN
822 select SYS_SUPPORTS_LITTLE_ENDIAN
823 select SYS_SUPPORTS_HIGHMEM
825 select NR_CPUS_DEFAULT_32
829 select ZONE_DMA if 64BIT
831 select SYS_HAS_EARLY_PRINTK
834 This board is based on Netlogic XLP Processor.
835 Say Y here if you have a XLP based board.
839 source "arch/mips/alchemy/Kconfig"
840 source "arch/mips/ath79/Kconfig"
841 source "arch/mips/bcm47xx/Kconfig"
842 source "arch/mips/bcm63xx/Kconfig"
843 source "arch/mips/jazz/Kconfig"
844 source "arch/mips/jz4740/Kconfig"
845 source "arch/mips/lantiq/Kconfig"
846 source "arch/mips/lasat/Kconfig"
847 source "arch/mips/pmc-sierra/Kconfig"
848 source "arch/mips/powertv/Kconfig"
849 source "arch/mips/sgi-ip27/Kconfig"
850 source "arch/mips/sibyte/Kconfig"
851 source "arch/mips/txx9/Kconfig"
852 source "arch/mips/vr41xx/Kconfig"
853 source "arch/mips/cavium-octeon/Kconfig"
854 source "arch/mips/loongson/Kconfig"
855 source "arch/mips/loongson1/Kconfig"
856 source "arch/mips/netlogic/Kconfig"
860 config RWSEM_GENERIC_SPINLOCK
864 config RWSEM_XCHGADD_ALGORITHM
867 config ARCH_HAS_ILOG2_U32
871 config ARCH_HAS_ILOG2_U64
875 config GENERIC_HWEIGHT
879 config GENERIC_CALIBRATE_DELAY
883 config SCHED_OMIT_FRAME_POINTER
888 # Select some configuration options automatically based on user selections.
893 config ARCH_MAY_HAVE_PC_FDC
934 select ARCH_REQUIRE_GPIOLIB
940 config ARCH_DMA_ADDR_T_64BIT
941 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
946 config DMA_NONCOHERENT
948 select NEED_DMA_MAP_STATE
950 config NEED_DMA_MAP_STATE
953 config SYS_HAS_EARLY_PRINTK
957 bool "Support for hot-pluggable CPUs"
958 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
960 Say Y here to allow turning CPUs off and on. CPUs can be
961 controlled through /sys/devices/system/cpu.
962 (Note: power management support will enable this option
963 automatically on SMP systems. )
964 Say N if you want to disable CPU hotplug.
966 config SYS_SUPPORTS_HOTPLUG_CPU
981 config MIPS_DISABLE_OBSOLETE_IDE
993 config GENERIC_ISA_DMA
995 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
998 config GENERIC_ISA_DMA_SUPPORT_BROKEN
1000 select GENERIC_ISA_DMA
1008 config HOLES_IN_ZONE
1012 # Endianness selection. Sufficiently obscure so many users don't know what to
1013 # answer,so we try hard to limit the available choices. Also the use of a
1014 # choice statement should be more obvious to the user.
1017 prompt "Endianness selection"
1019 Some MIPS machines can be configured for either little or big endian
1020 byte order. These modes require different kernels and a different
1021 Linux distribution. In general there is one preferred byteorder for a
1022 particular system but some systems are just as commonly used in the
1023 one or the other endianness.
1025 config CPU_BIG_ENDIAN
1027 depends on SYS_SUPPORTS_BIG_ENDIAN
1029 config CPU_LITTLE_ENDIAN
1030 bool "Little endian"
1031 depends on SYS_SUPPORTS_LITTLE_ENDIAN
1039 config SYS_SUPPORTS_APM_EMULATION
1042 config SYS_SUPPORTS_BIG_ENDIAN
1045 config SYS_SUPPORTS_LITTLE_ENDIAN
1048 config SYS_SUPPORTS_HUGETLBFS
1050 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1053 config MIPS_HUGE_TLB_SUPPORT
1054 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1077 config MIPS_BOARDS_GEN
1080 config PCI_GT64XXX_PCI0
1083 config NO_EXCEPT_FILL
1090 select DMA_NONCOHERENT
1092 select SWAP_IO_SPACE
1093 select SYS_HAS_CPU_R5500
1094 select SYS_SUPPORTS_32BIT_KERNEL
1095 select SYS_SUPPORTS_64BIT_KERNEL
1096 select SYS_SUPPORTS_BIG_ENDIAN
1103 select DMA_NONCOHERENT
1104 select SYS_HAS_CPU_MIPS32_R2
1105 select SYS_SUPPORTS_32BIT_KERNEL
1106 select SYS_SUPPORTS_LITTLE_ENDIAN
1107 select SYS_SUPPORTS_BIG_ENDIAN
1109 select CPU_MIPSR2_IRQ_VI
1121 select DMA_NONCOHERENT
1123 select SYS_HAS_CPU_MIPS32_R1
1124 select SYS_HAS_EARLY_PRINTK
1125 select SYS_SUPPORTS_32BIT_KERNEL
1128 config SWAP_IO_SPACE
1131 config SGI_HAS_INDYDOG
1143 config SGI_HAS_ZILOG
1146 config SGI_HAS_I8042
1149 config DEFAULT_SGI_PARTITION
1161 config MIPS_L1_CACHE_SHIFT
1163 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1164 default "6" if MIPS_CPU_SCACHE
1165 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1168 config HAVE_STD_PC_SERIAL_PORT
1172 bool "ARC console support"
1173 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1177 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1182 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1191 menu "CPU selection"
1197 config CPU_LOONGSON2E
1199 depends on SYS_HAS_CPU_LOONGSON2E
1200 select CPU_LOONGSON2
1202 The Loongson 2E processor implements the MIPS III instruction set
1203 with many extensions.
1205 It has an internal FPGA northbridge, which is compatible to
1208 config CPU_LOONGSON2F
1210 depends on SYS_HAS_CPU_LOONGSON2F
1211 select CPU_LOONGSON2
1213 select ARCH_REQUIRE_GPIOLIB
1215 The Loongson 2F processor implements the MIPS III instruction set
1216 with many extensions.
1218 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1219 have a similar programming interface with FPGA northbridge used in
1222 config CPU_LOONGSON1B
1224 depends on SYS_HAS_CPU_LOONGSON1B
1225 select CPU_LOONGSON1
1227 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1228 release 2 instruction set.
1230 config CPU_MIPS32_R1
1231 bool "MIPS32 Release 1"
1232 depends on SYS_HAS_CPU_MIPS32_R1
1233 select CPU_HAS_PREFETCH
1234 select CPU_SUPPORTS_32BIT_KERNEL
1235 select CPU_SUPPORTS_HIGHMEM
1237 Choose this option to build a kernel for release 1 or later of the
1238 MIPS32 architecture. Most modern embedded systems with a 32-bit
1239 MIPS processor are based on a MIPS32 processor. If you know the
1240 specific type of processor in your system, choose those that one
1241 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1242 Release 2 of the MIPS32 architecture is available since several
1243 years so chances are you even have a MIPS32 Release 2 processor
1244 in which case you should choose CPU_MIPS32_R2 instead for better
1247 config CPU_MIPS32_R2
1248 bool "MIPS32 Release 2"
1249 depends on SYS_HAS_CPU_MIPS32_R2
1250 select CPU_HAS_PREFETCH
1251 select CPU_SUPPORTS_32BIT_KERNEL
1252 select CPU_SUPPORTS_HIGHMEM
1254 Choose this option to build a kernel for release 2 or later of the
1255 MIPS32 architecture. Most modern embedded systems with a 32-bit
1256 MIPS processor are based on a MIPS32 processor. If you know the
1257 specific type of processor in your system, choose those that one
1258 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1260 config CPU_MIPS64_R1
1261 bool "MIPS64 Release 1"
1262 depends on SYS_HAS_CPU_MIPS64_R1
1263 select CPU_HAS_PREFETCH
1264 select CPU_SUPPORTS_32BIT_KERNEL
1265 select CPU_SUPPORTS_64BIT_KERNEL
1266 select CPU_SUPPORTS_HIGHMEM
1267 select CPU_SUPPORTS_HUGEPAGES
1269 Choose this option to build a kernel for release 1 or later of the
1270 MIPS64 architecture. Many modern embedded systems with a 64-bit
1271 MIPS processor are based on a MIPS64 processor. If you know the
1272 specific type of processor in your system, choose those that one
1273 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1274 Release 2 of the MIPS64 architecture is available since several
1275 years so chances are you even have a MIPS64 Release 2 processor
1276 in which case you should choose CPU_MIPS64_R2 instead for better
1279 config CPU_MIPS64_R2
1280 bool "MIPS64 Release 2"
1281 depends on SYS_HAS_CPU_MIPS64_R2
1282 select CPU_HAS_PREFETCH
1283 select CPU_SUPPORTS_32BIT_KERNEL
1284 select CPU_SUPPORTS_64BIT_KERNEL
1285 select CPU_SUPPORTS_HIGHMEM
1286 select CPU_SUPPORTS_HUGEPAGES
1288 Choose this option to build a kernel for release 2 or later of the
1289 MIPS64 architecture. Many modern embedded systems with a 64-bit
1290 MIPS processor are based on a MIPS64 processor. If you know the
1291 specific type of processor in your system, choose those that one
1292 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1296 depends on SYS_HAS_CPU_R3000
1298 select CPU_SUPPORTS_32BIT_KERNEL
1299 select CPU_SUPPORTS_HIGHMEM
1301 Please make sure to pick the right CPU type. Linux/MIPS is not
1302 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1303 *not* work on R4000 machines and vice versa. However, since most
1304 of the supported machines have an R4000 (or similar) CPU, R4x00
1305 might be a safe bet. If the resulting kernel does not work,
1306 try to recompile with R3000.
1310 depends on SYS_HAS_CPU_TX39XX
1311 select CPU_SUPPORTS_32BIT_KERNEL
1315 depends on SYS_HAS_CPU_VR41XX
1316 select CPU_SUPPORTS_32BIT_KERNEL
1317 select CPU_SUPPORTS_64BIT_KERNEL
1319 The options selects support for the NEC VR4100 series of processors.
1320 Only choose this option if you have one of these processors as a
1321 kernel built with this option will not run on any other type of
1322 processor or vice versa.
1326 depends on SYS_HAS_CPU_R4300
1327 select CPU_SUPPORTS_32BIT_KERNEL
1328 select CPU_SUPPORTS_64BIT_KERNEL
1330 MIPS Technologies R4300-series processors.
1334 depends on SYS_HAS_CPU_R4X00
1335 select CPU_SUPPORTS_32BIT_KERNEL
1336 select CPU_SUPPORTS_64BIT_KERNEL
1337 select CPU_SUPPORTS_HUGEPAGES
1339 MIPS Technologies R4000-series processors other than 4300, including
1340 the R4000, R4400, R4600, and 4700.
1344 depends on SYS_HAS_CPU_TX49XX
1345 select CPU_HAS_PREFETCH
1346 select CPU_SUPPORTS_32BIT_KERNEL
1347 select CPU_SUPPORTS_64BIT_KERNEL
1348 select CPU_SUPPORTS_HUGEPAGES
1352 depends on SYS_HAS_CPU_R5000
1353 select CPU_SUPPORTS_32BIT_KERNEL
1354 select CPU_SUPPORTS_64BIT_KERNEL
1355 select CPU_SUPPORTS_HUGEPAGES
1357 MIPS Technologies R5000-series processors other than the Nevada.
1361 depends on SYS_HAS_CPU_R5432
1362 select CPU_SUPPORTS_32BIT_KERNEL
1363 select CPU_SUPPORTS_64BIT_KERNEL
1364 select CPU_SUPPORTS_HUGEPAGES
1368 depends on SYS_HAS_CPU_R5500
1369 select CPU_SUPPORTS_32BIT_KERNEL
1370 select CPU_SUPPORTS_64BIT_KERNEL
1371 select CPU_SUPPORTS_HUGEPAGES
1373 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1378 depends on EXPERIMENTAL
1379 depends on SYS_HAS_CPU_R6000
1380 select CPU_SUPPORTS_32BIT_KERNEL
1382 MIPS Technologies R6000 and R6000A series processors. Note these
1383 processors are extremely rare and the support for them is incomplete.
1387 depends on SYS_HAS_CPU_NEVADA
1388 select CPU_SUPPORTS_32BIT_KERNEL
1389 select CPU_SUPPORTS_64BIT_KERNEL
1390 select CPU_SUPPORTS_HUGEPAGES
1392 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1396 depends on EXPERIMENTAL
1397 depends on SYS_HAS_CPU_R8000
1398 select CPU_HAS_PREFETCH
1399 select CPU_SUPPORTS_64BIT_KERNEL
1401 MIPS Technologies R8000 processors. Note these processors are
1402 uncommon and the support for them is incomplete.
1406 depends on SYS_HAS_CPU_R10000
1407 select CPU_HAS_PREFETCH
1408 select CPU_SUPPORTS_32BIT_KERNEL
1409 select CPU_SUPPORTS_64BIT_KERNEL
1410 select CPU_SUPPORTS_HIGHMEM
1411 select CPU_SUPPORTS_HUGEPAGES
1413 MIPS Technologies R10000-series processors.
1417 depends on SYS_HAS_CPU_RM7000
1418 select CPU_HAS_PREFETCH
1419 select CPU_SUPPORTS_32BIT_KERNEL
1420 select CPU_SUPPORTS_64BIT_KERNEL
1421 select CPU_SUPPORTS_HIGHMEM
1422 select CPU_SUPPORTS_HUGEPAGES
1426 depends on SYS_HAS_CPU_SB1
1427 select CPU_SUPPORTS_32BIT_KERNEL
1428 select CPU_SUPPORTS_64BIT_KERNEL
1429 select CPU_SUPPORTS_HIGHMEM
1430 select CPU_SUPPORTS_HUGEPAGES
1431 select WEAK_ORDERING
1433 config CPU_CAVIUM_OCTEON
1434 bool "Cavium Octeon processor"
1435 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1436 select ARCH_SPARSEMEM_ENABLE
1437 select CPU_HAS_PREFETCH
1438 select CPU_SUPPORTS_64BIT_KERNEL
1439 select SYS_SUPPORTS_SMP
1440 select NR_CPUS_DEFAULT_16
1441 select WEAK_ORDERING
1442 select CPU_SUPPORTS_HIGHMEM
1443 select CPU_SUPPORTS_HUGEPAGES
1447 The Cavium Octeon processor is a highly integrated chip containing
1448 many ethernet hardware widgets for networking tasks. The processor
1449 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1450 Full details can be found at http://www.caviumnetworks.com.
1452 config CPU_BMIPS3300
1454 depends on SYS_HAS_CPU_BMIPS3300
1457 Broadcom BMIPS3300 processors.
1459 config CPU_BMIPS4350
1461 depends on SYS_HAS_CPU_BMIPS4350
1463 select SYS_SUPPORTS_SMP
1464 select SYS_SUPPORTS_HOTPLUG_CPU
1466 Broadcom BMIPS4350 ("VIPER") processors.
1468 config CPU_BMIPS4380
1470 depends on SYS_HAS_CPU_BMIPS4380
1472 select SYS_SUPPORTS_SMP
1473 select SYS_SUPPORTS_HOTPLUG_CPU
1475 Broadcom BMIPS4380 processors.
1477 config CPU_BMIPS5000
1479 depends on SYS_HAS_CPU_BMIPS5000
1481 select CPU_SUPPORTS_HIGHMEM
1482 select MIPS_CPU_SCACHE
1483 select SYS_SUPPORTS_SMP
1484 select SYS_SUPPORTS_HOTPLUG_CPU
1486 Broadcom BMIPS5000 processors.
1489 bool "Netlogic XLR SoC"
1490 depends on SYS_HAS_CPU_XLR
1491 select CPU_SUPPORTS_32BIT_KERNEL
1492 select CPU_SUPPORTS_64BIT_KERNEL
1493 select CPU_SUPPORTS_HIGHMEM
1494 select CPU_SUPPORTS_HUGEPAGES
1495 select WEAK_ORDERING
1496 select WEAK_REORDERING_BEYOND_LLSC
1498 Netlogic Microsystems XLR/XLS processors.
1501 bool "Netlogic XLP SoC"
1502 depends on SYS_HAS_CPU_XLP
1503 select CPU_SUPPORTS_32BIT_KERNEL
1504 select CPU_SUPPORTS_64BIT_KERNEL
1505 select CPU_SUPPORTS_HIGHMEM
1507 select WEAK_ORDERING
1508 select WEAK_REORDERING_BEYOND_LLSC
1509 select CPU_HAS_PREFETCH
1511 Netlogic Microsystems XLP processors.
1515 config CPU_NOP_WORKAROUNDS
1518 config CPU_JUMP_WORKAROUNDS
1521 config CPU_LOONGSON2F_WORKAROUNDS
1522 bool "Loongson 2F Workarounds"
1524 select CPU_NOP_WORKAROUNDS
1525 select CPU_JUMP_WORKAROUNDS
1527 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1528 require workarounds. Without workarounds the system may hang
1529 unexpectedly. For more information please refer to the gas
1530 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1532 Loongson 2F03 and later have fixed these issues and no workarounds
1533 are needed. The workarounds have no significant side effect on them
1534 but may decrease the performance of the system so this option should
1535 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1538 If unsure, please say Y.
1539 endif # CPU_LOONGSON2F
1541 config SYS_SUPPORTS_ZBOOT
1543 select HAVE_KERNEL_GZIP
1544 select HAVE_KERNEL_BZIP2
1545 select HAVE_KERNEL_LZMA
1546 select HAVE_KERNEL_LZO
1548 config SYS_SUPPORTS_ZBOOT_UART16550
1550 select SYS_SUPPORTS_ZBOOT
1552 config CPU_LOONGSON2
1554 select CPU_SUPPORTS_32BIT_KERNEL
1555 select CPU_SUPPORTS_64BIT_KERNEL
1556 select CPU_SUPPORTS_HIGHMEM
1557 select CPU_SUPPORTS_HUGEPAGES
1559 config CPU_LOONGSON1
1563 select CPU_HAS_PREFETCH
1564 select CPU_SUPPORTS_32BIT_KERNEL
1565 select CPU_SUPPORTS_HIGHMEM
1570 select CPU_SUPPORTS_32BIT_KERNEL
1571 select DMA_NONCOHERENT
1573 select SWAP_IO_SPACE
1574 select WEAK_ORDERING
1576 config SYS_HAS_CPU_LOONGSON2E
1579 config SYS_HAS_CPU_LOONGSON2F
1581 select CPU_SUPPORTS_CPUFREQ
1582 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1583 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1585 config SYS_HAS_CPU_LOONGSON1B
1588 config SYS_HAS_CPU_MIPS32_R1
1591 config SYS_HAS_CPU_MIPS32_R2
1594 config SYS_HAS_CPU_MIPS64_R1
1597 config SYS_HAS_CPU_MIPS64_R2
1600 config SYS_HAS_CPU_R3000
1603 config SYS_HAS_CPU_TX39XX
1606 config SYS_HAS_CPU_VR41XX
1609 config SYS_HAS_CPU_R4300
1612 config SYS_HAS_CPU_R4X00
1615 config SYS_HAS_CPU_TX49XX
1618 config SYS_HAS_CPU_R5000
1621 config SYS_HAS_CPU_R5432
1624 config SYS_HAS_CPU_R5500
1627 config SYS_HAS_CPU_R6000
1630 config SYS_HAS_CPU_NEVADA
1633 config SYS_HAS_CPU_R8000
1636 config SYS_HAS_CPU_R10000
1639 config SYS_HAS_CPU_RM7000
1642 config SYS_HAS_CPU_SB1
1645 config SYS_HAS_CPU_CAVIUM_OCTEON
1648 config SYS_HAS_CPU_BMIPS3300
1651 config SYS_HAS_CPU_BMIPS4350
1654 config SYS_HAS_CPU_BMIPS4380
1657 config SYS_HAS_CPU_BMIPS5000
1660 config SYS_HAS_CPU_XLR
1663 config SYS_HAS_CPU_XLP
1667 # CPU may reorder R->R, R->W, W->R, W->W
1668 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1670 config WEAK_ORDERING
1674 # CPU may reorder reads and writes beyond LL/SC
1675 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1677 config WEAK_REORDERING_BEYOND_LLSC
1682 # These two indicate any level of the MIPS32 and MIPS64 architecture
1686 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1690 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1693 # These two indicate the revision of the architecture, either Release 1 or Release 2
1697 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1701 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1703 config SYS_SUPPORTS_32BIT_KERNEL
1705 config SYS_SUPPORTS_64BIT_KERNEL
1707 config CPU_SUPPORTS_32BIT_KERNEL
1709 config CPU_SUPPORTS_64BIT_KERNEL
1711 config CPU_SUPPORTS_CPUFREQ
1713 config CPU_SUPPORTS_ADDRWINCFG
1715 config CPU_SUPPORTS_HUGEPAGES
1717 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1719 config MIPS_PGD_C0_CONTEXT
1721 default y if 64BIT && CPU_MIPSR2
1724 # Set to y for ptrace access to watch registers.
1726 config HARDWARE_WATCHPOINTS
1728 default y if CPU_MIPSR1 || CPU_MIPSR2
1733 prompt "Kernel code model"
1735 You should only select this option if you have a workload that
1736 actually benefits from 64-bit processing or if your machine has
1737 large memory. You will only be presented a single option in this
1738 menu if your system does not support both 32-bit and 64-bit kernels.
1741 bool "32-bit kernel"
1742 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1745 Select this option if you want to build a 32-bit kernel.
1747 bool "64-bit kernel"
1748 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1749 select HAVE_SYSCALL_WRAPPERS
1751 Select this option if you want to build a 64-bit kernel.
1756 prompt "Kernel page size"
1757 default PAGE_SIZE_4KB
1759 config PAGE_SIZE_4KB
1761 depends on !CPU_LOONGSON2
1763 This option select the standard 4kB Linux page size. On some
1764 R3000-family processors this is the only available page size. Using
1765 4kB page size will minimize memory consumption and is therefore
1766 recommended for low memory systems.
1768 config PAGE_SIZE_8KB
1770 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
1772 Using 8kB page size will result in higher performance kernel at
1773 the price of higher memory consumption. This option is available
1774 only on R8000 and cnMIPS processors. Note that you will need a
1775 suitable Linux distribution to support this.
1777 config PAGE_SIZE_16KB
1779 depends on !CPU_R3000 && !CPU_TX39XX
1781 Using 16kB page size will result in higher performance kernel at
1782 the price of higher memory consumption. This option is available on
1783 all non-R3000 family processors. Note that you will need a suitable
1784 Linux distribution to support this.
1786 config PAGE_SIZE_32KB
1788 depends on CPU_CAVIUM_OCTEON
1790 Using 32kB page size will result in higher performance kernel at
1791 the price of higher memory consumption. This option is available
1792 only on cnMIPS cores. Note that you will need a suitable Linux
1793 distribution to support this.
1795 config PAGE_SIZE_64KB
1797 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1799 Using 64kB page size will result in higher performance kernel at
1800 the price of higher memory consumption. This option is available on
1801 all non-R3000 family processor. Not that at the time of this
1802 writing this option is still high experimental.
1806 config FORCE_MAX_ZONEORDER
1807 int "Maximum zone order"
1808 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1809 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1810 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1811 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1812 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1813 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1817 The kernel memory allocator divides physically contiguous memory
1818 blocks into "zones", where each zone is a power of two number of
1819 pages. This option selects the largest power of two that the kernel
1820 keeps in the memory allocator. If you need to allocate very large
1821 blocks of physically contiguous memory, then you may need to
1822 increase this value.
1824 This config option is actually maximum order plus one. For example,
1825 a value of 11 means that the largest free memory block is 2^10 pages.
1827 The page size is not necessarily 4KB. Keep this in mind
1828 when choosing a value for this option.
1833 config IP22_CPU_SCACHE
1838 # Support for a MIPS32 / MIPS64 style S-caches
1840 config MIPS_CPU_SCACHE
1844 config R5000_CPU_SCACHE
1848 config RM7000_CPU_SCACHE
1852 config SIBYTE_DMA_PAGEOPS
1853 bool "Use DMA to clear/copy pages"
1856 Instead of using the CPU to zero and copy pages, use a Data Mover
1857 channel. These DMA channels are otherwise unused by the standard
1858 SiByte Linux port. Seems to give a small performance benefit.
1860 config CPU_HAS_PREFETCH
1863 config CPU_GENERIC_DUMP_TLB
1865 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1869 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1871 config CPU_R4K_CACHE_TLB
1873 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1876 prompt "MIPS MT options"
1878 config MIPS_MT_DISABLED
1879 bool "Disable multithreading support."
1881 Use this option if your workload can't take advantage of
1882 MIPS hardware multithreading support. On systems that don't have
1883 the option of an MT-enabled processor this option will be the only
1884 option in this menu.
1887 bool "Use 1 TC on each available VPE for SMP"
1888 depends on SYS_SUPPORTS_MULTITHREADING
1889 select CPU_MIPSR2_IRQ_VI
1890 select CPU_MIPSR2_IRQ_EI
1892 select NR_CPUS_DEFAULT_2
1894 select SYS_SUPPORTS_SCHED_SMT if SMP
1895 select SYS_SUPPORTS_SMP
1897 select MIPS_PERF_SHARED_TC_COUNTERS
1899 This is a kernel model which is known a VSMP but lately has been
1900 marketesed into SMVP.
1901 Virtual SMP uses the processor's VPEs to implement virtual
1902 processors. In currently available configuration of the 34K processor
1903 this allows for a dual processor. Both processors will share the same
1904 primary caches; each will obtain the half of the TLB for it's own
1905 exclusive use. For a layman this model can be described as similar to
1906 what Intel calls Hyperthreading.
1908 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1911 bool "SMTC: Use all TCs on all VPEs for SMP"
1912 depends on CPU_MIPS32_R2
1913 #depends on CPU_MIPS64_R2 # once there is hardware ...
1914 depends on SYS_SUPPORTS_MULTITHREADING
1915 select CPU_MIPSR2_IRQ_VI
1916 select CPU_MIPSR2_IRQ_EI
1918 select NR_CPUS_DEFAULT_8
1920 select SYS_SUPPORTS_SMP
1923 This is a kernel model which is known a SMTC or lately has been
1924 marketesed into SMVP.
1925 is presenting the available TC's of the core as processors to Linux.
1926 On currently available 34K processors this means a Linux system will
1927 see up to 5 processors. The implementation of the SMTC kernel differs
1928 significantly from VSMP and cannot efficiently coexist in the same
1929 kernel binary so the choice between VSMP and SMTC is a compile time
1932 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1940 bool "SMT (multithreading) scheduler support"
1941 depends on SYS_SUPPORTS_SCHED_SMT
1944 SMT scheduler support improves the CPU scheduler's decision making
1945 when dealing with MIPS MT enabled cores at a cost of slightly
1946 increased overhead in some places. If unsure say N here.
1948 config SYS_SUPPORTS_SCHED_SMT
1951 config SYS_SUPPORTS_MULTITHREADING
1954 config MIPS_MT_FPAFF
1955 bool "Dynamic FPU affinity for FP-intensive threads"
1957 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1959 config MIPS_VPE_LOADER
1960 bool "VPE loader support."
1961 depends on SYS_SUPPORTS_MULTITHREADING
1962 select CPU_MIPSR2_IRQ_VI
1963 select CPU_MIPSR2_IRQ_EI
1966 Includes a loader for loading an elf relocatable object
1967 onto another VPE and running it.
1969 config MIPS_MT_SMTC_IM_BACKSTOP
1970 bool "Use per-TC register bits as backstop for inhibited IM bits"
1971 depends on MIPS_MT_SMTC
1974 To support multiple TC microthreads acting as "CPUs" within
1975 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1976 during interrupt handling. To support legacy drivers and interrupt
1977 controller management code, SMTC has a "backstop" to track and
1978 if necessary restore the interrupt mask. This has some performance
1979 impact on interrupt service overhead.
1981 config MIPS_MT_SMTC_IRQAFF
1982 bool "Support IRQ affinity API"
1983 depends on MIPS_MT_SMTC
1986 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1987 for SMTC Linux kernel. Requires platform support, of which
1988 an example can be found in the MIPS kernel i8259 and Malta
1989 platform code. Adds some overhead to interrupt dispatch, and
1990 should be used only if you know what you are doing.
1992 config MIPS_VPE_LOADER_TOM
1993 bool "Load VPE program into memory hidden from linux"
1994 depends on MIPS_VPE_LOADER
1997 The loader can use memory that is present but has been hidden from
1998 Linux using the kernel command line option "mem=xxMB". It's up to
1999 you to ensure the amount you put in the option and the space your
2000 program requires is less or equal to the amount physically present.
2002 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
2003 config MIPS_VPE_APSP_API
2004 bool "Enable support for AP/SP API (RTLX)"
2005 depends on MIPS_VPE_LOADER
2009 bool "MIPS CMP framework support"
2010 depends on SYS_SUPPORTS_MIPS_CMP
2012 select SYS_SUPPORTS_SMP
2013 select SYS_SUPPORTS_SCHED_SMT if SMP
2014 select WEAK_ORDERING
2017 This is a placeholder option for the GCMP work. It will need to
2018 be handled differently...
2020 config SB1_PASS_1_WORKAROUNDS
2022 depends on CPU_SB1_PASS_1
2025 config SB1_PASS_2_WORKAROUNDS
2027 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2030 config SB1_PASS_2_1_WORKAROUNDS
2032 depends on CPU_SB1 && CPU_SB1_PASS_2
2035 config 64BIT_PHYS_ADDR
2038 config ARCH_PHYS_ADDR_T_64BIT
2039 def_bool 64BIT_PHYS_ADDR
2041 config CPU_HAS_SMARTMIPS
2042 depends on SYS_SUPPORTS_SMARTMIPS
2043 bool "Support for the SmartMIPS ASE"
2045 SmartMIPS is a extension of the MIPS32 architecture aimed at
2046 increased security at both hardware and software level for
2047 smartcards. Enabling this option will allow proper use of the
2048 SmartMIPS instructions by Linux applications. However a kernel with
2049 this option will not work on a MIPS core without SmartMIPS core. If
2050 you don't know you probably don't have SmartMIPS and should say N
2060 # Vectored interrupt mode is an R2 feature
2062 config CPU_MIPSR2_IRQ_VI
2066 # Extended interrupt mode is an R2 feature
2068 config CPU_MIPSR2_IRQ_EI
2073 depends on !CPU_R3000
2079 config CPU_DADDI_WORKAROUNDS
2082 config CPU_R4000_WORKAROUNDS
2084 select CPU_R4400_WORKAROUNDS
2086 config CPU_R4400_WORKAROUNDS
2090 # - Highmem only makes sense for the 32-bit kernel.
2091 # - The current highmem code will only work properly on physically indexed
2092 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2093 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2094 # moment we protect the user and offer the highmem option only on machines
2095 # where it's known to be safe. This will not offer highmem on a few systems
2096 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2097 # indexed CPUs but we're playing safe.
2098 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2099 # know they might have memory configurations that could make use of highmem
2103 bool "High Memory Support"
2104 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2106 config CPU_SUPPORTS_HIGHMEM
2109 config SYS_SUPPORTS_HIGHMEM
2112 config SYS_SUPPORTS_SMARTMIPS
2115 config ARCH_FLATMEM_ENABLE
2117 depends on !NUMA && !CPU_LOONGSON2
2119 config ARCH_DISCONTIGMEM_ENABLE
2121 default y if SGI_IP27
2123 Say Y to support efficient handling of discontiguous physical memory,
2124 for architectures which are either NUMA (Non-Uniform Memory Access)
2125 or have huge holes in the physical address space for other reasons.
2126 See <file:Documentation/vm/numa> for more.
2128 config ARCH_SPARSEMEM_ENABLE
2130 select SPARSEMEM_STATIC
2134 depends on SYS_SUPPORTS_NUMA
2136 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2137 Access). This option improves performance on systems with more
2138 than two nodes; on two node systems it is generally better to
2139 leave it disabled; on single node systems disable this option
2142 config SYS_SUPPORTS_NUMA
2148 depends on NEED_MULTIPLE_NODES
2150 config HW_PERF_EVENTS
2151 bool "Enable hardware performance counter support for perf events"
2152 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2155 Enable hardware performance counter support for perf events. If
2156 disabled, perf events will use software events only.
2161 bool "Multi-Processing support"
2162 depends on SYS_SUPPORTS_SMP
2164 select USE_GENERIC_SMP_HELPERS
2166 This enables support for systems with more than one CPU. If you have
2167 a system with only one CPU, like most personal computers, say N. If
2168 you have a system with more than one CPU, say Y.
2170 If you say N here, the kernel will run on single and multiprocessor
2171 machines, but will use only one CPU of a multiprocessor machine. If
2172 you say Y here, the kernel will run on many, but not all,
2173 singleprocessor machines. On a singleprocessor machine, the kernel
2174 will run faster if you say N here.
2176 People using multiprocessor machines who say Y here should also say
2177 Y to "Enhanced Real Time Clock Support", below.
2179 See also the SMP-HOWTO available at
2180 <http://www.tldp.org/docs.html#howto>.
2182 If you don't know what to do here, say N.
2187 config SYS_SUPPORTS_MIPS_CMP
2190 config SYS_SUPPORTS_SMP
2193 config NR_CPUS_DEFAULT_1
2196 config NR_CPUS_DEFAULT_2
2199 config NR_CPUS_DEFAULT_4
2202 config NR_CPUS_DEFAULT_8
2205 config NR_CPUS_DEFAULT_16
2208 config NR_CPUS_DEFAULT_32
2211 config NR_CPUS_DEFAULT_64
2215 int "Maximum number of CPUs (2-64)"
2216 range 1 64 if NR_CPUS_DEFAULT_1
2218 default "1" if NR_CPUS_DEFAULT_1
2219 default "2" if NR_CPUS_DEFAULT_2
2220 default "4" if NR_CPUS_DEFAULT_4
2221 default "8" if NR_CPUS_DEFAULT_8
2222 default "16" if NR_CPUS_DEFAULT_16
2223 default "32" if NR_CPUS_DEFAULT_32
2224 default "64" if NR_CPUS_DEFAULT_64
2226 This allows you to specify the maximum number of CPUs which this
2227 kernel will support. The maximum supported value is 32 for 32-bit
2228 kernel and 64 for 64-bit kernels; the minimum value which makes
2229 sense is 1 for Qemu (useful only for kernel debugging purposes)
2230 and 2 for all others.
2232 This is purely to save memory - each supported CPU adds
2233 approximately eight kilobytes to the kernel image. For best
2234 performance should round up your number of processors to the next
2237 config MIPS_PERF_SHARED_TC_COUNTERS
2241 # Timer Interrupt Frequency Configuration
2245 prompt "Timer frequency"
2248 Allows the configuration of the timer frequency.
2251 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2254 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2257 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2260 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2263 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2266 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2269 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2273 config SYS_SUPPORTS_48HZ
2276 config SYS_SUPPORTS_100HZ
2279 config SYS_SUPPORTS_128HZ
2282 config SYS_SUPPORTS_250HZ
2285 config SYS_SUPPORTS_256HZ
2288 config SYS_SUPPORTS_1000HZ
2291 config SYS_SUPPORTS_1024HZ
2294 config SYS_SUPPORTS_ARBIT_HZ
2296 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2297 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2298 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2299 !SYS_SUPPORTS_1024HZ
2304 default 100 if HZ_100
2305 default 128 if HZ_128
2306 default 250 if HZ_250
2307 default 256 if HZ_256
2308 default 1000 if HZ_1000
2309 default 1024 if HZ_1024
2311 source "kernel/Kconfig.preempt"
2314 bool "Kexec system call (EXPERIMENTAL)"
2315 depends on EXPERIMENTAL
2317 kexec is a system call that implements the ability to shutdown your
2318 current kernel, and to start another kernel. It is like a reboot
2319 but it is independent of the system firmware. And like a reboot
2320 you can start any kernel with it, not just Linux.
2322 The name comes from the similarity to the exec system call.
2324 It is an ongoing process to be certain the hardware in a machine
2325 is properly shutdown, so do not be surprised if this code does not
2326 initially work for you. It may help to enable device hotplugging
2327 support. As of this writing the exact hardware interface is
2328 strongly in flux, so no good recommendation can be made.
2331 bool "Kernel crash dumps"
2333 Generate crash dump after being started by kexec.
2334 This should be normally only set in special crash dump kernels
2335 which are loaded in the main kernel with kexec-tools into
2336 a specially reserved region and then later executed after
2337 a crash by kdump/kexec. The crash dump kernel must be compiled
2338 to a memory address not used by the main kernel or firmware using
2341 config PHYSICAL_START
2342 hex "Physical address where the kernel is loaded"
2343 default "0xffffffff84000000" if 64BIT
2344 default "0x84000000" if 32BIT
2345 depends on CRASH_DUMP
2347 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2348 If you plan to use kernel for capturing the crash dump change
2349 this value to start of the reserved region (the "X" value as
2350 specified in the "crashkernel=YM@XM" command line boot parameter
2351 passed to the panic-ed kernel).
2354 bool "Enable seccomp to safely compute untrusted bytecode"
2358 This kernel feature is useful for number crunching applications
2359 that may need to compute untrusted bytecode during their
2360 execution. By using pipes or other transports made available to
2361 the process as file descriptors supporting the read/write
2362 syscalls, it's possible to isolate those applications in
2363 their own address space using seccomp. Once seccomp is
2364 enabled via /proc/<pid>/seccomp, it cannot be disabled
2365 and the task is only allowed to execute a few safe syscalls
2366 defined by each seccomp mode.
2368 If unsure, say Y. Only embedded should say N here.
2373 select OF_EARLY_FLATTREE
2378 config LOCKDEP_SUPPORT
2382 config STACKTRACE_SUPPORT
2386 source "init/Kconfig"
2388 source "kernel/Kconfig.freezer"
2390 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2398 bool "Support for PCI controller"
2399 depends on HW_HAS_PCI
2401 select GENERIC_PCI_IOMAP
2402 select NO_GENERIC_PCI_IOPORT_MAP
2404 Find out whether you have a PCI motherboard. PCI is the name of a
2405 bus system, i.e. the way the CPU talks to the other stuff inside
2406 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2412 source "drivers/pci/Kconfig"
2414 source "drivers/pci/pcie/Kconfig"
2417 # ISA support is now enabled via select. Too many systems still have the one
2418 # or other ISA chip on the board that users don't know about so don't expect
2419 # users to choose the right thing ...
2426 depends on HW_HAS_EISA
2428 select GENERIC_ISA_DMA
2430 The Extended Industry Standard Architecture (EISA) bus was
2431 developed as an open alternative to the IBM MicroChannel bus.
2433 The EISA bus provided some of the features of the IBM MicroChannel
2434 bus while maintaining backward compatibility with cards made for
2435 the older ISA bus. The EISA bus saw limited use between 1988 and
2436 1995 when it was made obsolete by the PCI bus.
2438 Say Y here if you are building a kernel for an EISA-based machine.
2442 source "drivers/eisa/Kconfig"
2445 bool "TURBOchannel support"
2446 depends on MACH_DECSTATION
2448 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2449 processors. TURBOchannel programming specifications are available
2451 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2453 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2454 Linux driver support status is documented at:
2455 <http://www.linux-mips.org/wiki/DECstation>
2465 select MIPS_EXTERNAL_TIMER
2470 source "drivers/pcmcia/Kconfig"
2472 source "drivers/pci/hotplug/Kconfig"
2475 bool "RapidIO support"
2479 If you say Y here, the kernel will include drivers and
2480 infrastructure code to support RapidIO interconnect devices.
2482 source "drivers/rapidio/Kconfig"
2486 menu "Executable file formats"
2488 source "fs/Kconfig.binfmt"
2493 config MIPS32_COMPAT
2494 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2497 Select this option if you want Linux/MIPS 32-bit binary
2498 compatibility. Since all software available for Linux/MIPS is
2499 currently 32-bit you should say Y here.
2503 depends on MIPS32_COMPAT
2504 select ARCH_WANT_OLD_COMPAT_IPC
2507 config SYSVIPC_COMPAT
2509 depends on COMPAT && SYSVIPC
2513 bool "Kernel support for o32 binaries"
2514 depends on MIPS32_COMPAT
2516 Select this option if you want to run o32 binaries. These are pure
2517 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2518 existing binaries are in this format.
2523 bool "Kernel support for n32 binaries"
2524 depends on MIPS32_COMPAT
2526 Select this option if you want to run n32 binaries. These are
2527 64-bit binaries using 32-bit quantities for addressing and certain
2528 data that would normally be 64-bit. They are used in special
2535 default y if MIPS32_O32 || MIPS32_N32
2539 menu "Power management options"
2541 config ARCH_HIBERNATION_POSSIBLE
2543 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2545 config ARCH_SUSPEND_POSSIBLE
2547 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2549 source "kernel/power/Kconfig"
2553 source "arch/mips/kernel/cpufreq/Kconfig"
2555 source "net/Kconfig"
2557 source "drivers/Kconfig"
2559 source "drivers/firmware/Kconfig"
2563 source "arch/mips/Kconfig.debug"
2565 source "security/Kconfig"
2567 source "crypto/Kconfig"
2569 source "lib/Kconfig"