4 select ARCH_MIGHT_HAVE_PC_PARPORT
5 select ARCH_MIGHT_HAVE_PC_SERIO
6 select HAVE_CONTEXT_TRACKING
7 select HAVE_GENERIC_DMA_COHERENT
10 select HAVE_PERF_EVENTS
11 select PERF_USE_VMALLOC
13 select HAVE_ARCH_TRACEHOOK
14 select ARCH_HAVE_CUSTOM_GPIO_H
15 select HAVE_FUNCTION_TRACER
16 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
17 select HAVE_DYNAMIC_FTRACE
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_C_RECORDMCOUNT
20 select HAVE_FUNCTION_GRAPH_TRACER
22 select HAVE_KRETPROBES
23 select HAVE_DEBUG_KMEMLEAK
24 select HAVE_SYSCALL_TRACEPOINTS
25 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
26 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
27 select RTC_LIB if !MACH_LOONGSON
28 select GENERIC_ATOMIC64 if !64BIT
29 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
31 select HAVE_DMA_API_DEBUG
32 select GENERIC_IRQ_PROBE
33 select GENERIC_IRQ_SHOW
34 select GENERIC_PCI_IOMAP
35 select HAVE_ARCH_JUMP_LABEL
36 select ARCH_WANT_IPC_PARSE_VERSION
37 select IRQ_FORCED_THREADING
39 select HAVE_MEMBLOCK_NODE_MAP
40 select ARCH_DISCARD_MEMBLOCK
41 select GENERIC_SMP_IDLE_THREAD
42 select BUILDTIME_EXTABLE_SORT
43 select GENERIC_CLOCKEVENTS
44 select GENERIC_CMOS_UPDATE
45 select HAVE_MOD_ARCH_SPECIFIC
47 select MODULES_USE_ELF_REL if MODULES
48 select MODULES_USE_ELF_RELA if MODULES && 64BIT
49 select CLONE_BACKWARDS
50 select HAVE_DEBUG_STACKOVERFLOW
51 select HAVE_CC_STACKPROTECTOR
53 menu "Machine selection"
60 bool "Alchemy processor based machines"
61 select 64BIT_PHYS_ADDR
65 select SYS_HAS_CPU_MIPS32_R1
66 select SYS_SUPPORTS_32BIT_KERNEL
67 select SYS_SUPPORTS_APM_EMULATION
68 select ARCH_REQUIRE_GPIOLIB
69 select SYS_SUPPORTS_ZBOOT
70 select USB_ARCH_HAS_OHCI
71 select USB_ARCH_HAS_EHCI
74 bool "Texas Instruments AR7"
76 select DMA_NONCOHERENT
82 select SYS_HAS_CPU_MIPS32_R1
83 select SYS_HAS_EARLY_PRINTK
84 select SYS_SUPPORTS_32BIT_KERNEL
85 select SYS_SUPPORTS_LITTLE_ENDIAN
86 select SYS_SUPPORTS_ZBOOT_UART16550
87 select ARCH_REQUIRE_GPIOLIB
91 Support for the Texas Instruments AR7 System-on-a-Chip
92 family: TNETD7100, 7200 and 7300.
95 bool "Atheros AR71XX/AR724X/AR913X based boards"
96 select ARCH_REQUIRE_GPIOLIB
100 select DMA_NONCOHERENT
105 select SYS_HAS_CPU_MIPS32_R2
106 select SYS_HAS_EARLY_PRINTK
107 select SYS_SUPPORTS_32BIT_KERNEL
108 select SYS_SUPPORTS_BIG_ENDIAN
110 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
113 bool "Broadcom BCM47XX based boards"
114 select ARCH_WANT_OPTIONAL_GPIOLIB
118 select DMA_NONCOHERENT
122 select SYS_HAS_CPU_MIPS32_R1
123 select NO_EXCEPT_FILL
124 select SYS_SUPPORTS_32BIT_KERNEL
125 select SYS_SUPPORTS_LITTLE_ENDIAN
126 select SYS_HAS_EARLY_PRINTK
128 Support for BCM47XX based boards
131 bool "Broadcom BCM63XX based boards"
135 select DMA_NONCOHERENT
137 select SYS_HAS_CPU_MIPS32_R1
138 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
139 select SYS_SUPPORTS_32BIT_KERNEL
140 select SYS_SUPPORTS_BIG_ENDIAN
141 select SYS_HAS_EARLY_PRINTK
143 select ARCH_REQUIRE_GPIOLIB
146 Support for BCM63XX based boards
153 select DMA_NONCOHERENT
154 select EARLY_PRINTK_8250 if EARLY_PRINTK
160 select PCI_GT64XXX_PCI0
162 select SYS_HAS_CPU_NEVADA
163 select SYS_HAS_EARLY_PRINTK
164 select SYS_SUPPORTS_32BIT_KERNEL
165 select SYS_SUPPORTS_64BIT_KERNEL
166 select SYS_SUPPORTS_LITTLE_ENDIAN
168 config MACH_DECSTATION
175 select CPU_DADDI_WORKAROUNDS if 64BIT
176 select CPU_R4000_WORKAROUNDS if 64BIT
177 select CPU_R4400_WORKAROUNDS if 64BIT
178 select DMA_NONCOHERENT
181 select SYS_HAS_CPU_R3000
182 select SYS_HAS_CPU_R4X00
183 select SYS_SUPPORTS_32BIT_KERNEL
184 select SYS_SUPPORTS_64BIT_KERNEL
185 select SYS_SUPPORTS_LITTLE_ENDIAN
186 select SYS_SUPPORTS_128HZ
187 select SYS_SUPPORTS_256HZ
188 select SYS_SUPPORTS_1024HZ
190 This enables support for DEC's MIPS based workstations. For details
191 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
192 DECstation porting pages on <http://decstation.unix-ag.org/>.
194 If you have one of the following DECstation Models you definitely
195 want to choose R4xx0 for the CPU Type:
202 otherwise choose R3000.
205 bool "Jazz family of machines"
208 select ARCH_MAY_HAVE_PC_FDC
211 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
212 select GENERIC_ISA_DMA
213 select HAVE_PCSPKR_PLATFORM
218 select SYS_HAS_CPU_R4X00
219 select SYS_SUPPORTS_32BIT_KERNEL
220 select SYS_SUPPORTS_64BIT_KERNEL
221 select SYS_SUPPORTS_100HZ
223 This a family of machines based on the MIPS R4030 chipset which was
224 used by several vendors to build RISC/os and Windows NT workstations.
225 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
226 Olivetti M700-10 workstations.
229 bool "Ingenic JZ4740 based machines"
230 select SYS_HAS_CPU_MIPS32_R1
231 select SYS_SUPPORTS_32BIT_KERNEL
232 select SYS_SUPPORTS_LITTLE_ENDIAN
233 select SYS_SUPPORTS_ZBOOT_UART16550
234 select DMA_NONCOHERENT
236 select ARCH_REQUIRE_GPIOLIB
237 select SYS_HAS_EARLY_PRINTK
240 select GENERIC_IRQ_CHIP
243 bool "Lantiq based platforms"
244 select DMA_NONCOHERENT
248 select SYS_HAS_CPU_MIPS32_R1
249 select SYS_HAS_CPU_MIPS32_R2
250 select SYS_SUPPORTS_BIG_ENDIAN
251 select SYS_SUPPORTS_32BIT_KERNEL
252 select SYS_SUPPORTS_MULTITHREADING
253 select SYS_HAS_EARLY_PRINTK
254 select ARCH_REQUIRE_GPIOLIB
257 select HAVE_MACH_CLKDEV
261 select PINCTRL_LANTIQ
264 bool "LASAT Networks platforms"
267 select DMA_NONCOHERENT
268 select SYS_HAS_EARLY_PRINTK
271 select PCI_GT64XXX_PCI0
273 select R5000_CPU_SCACHE
274 select SYS_HAS_CPU_R5000
275 select SYS_SUPPORTS_32BIT_KERNEL
276 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
277 select SYS_SUPPORTS_LITTLE_ENDIAN
280 bool "Loongson family of machines"
281 select SYS_SUPPORTS_ZBOOT
283 This enables the support of Loongson family of machines.
285 Loongson is a family of general-purpose MIPS-compatible CPUs.
286 developed at Institute of Computing Technology (ICT),
287 Chinese Academy of Sciences (CAS) in the People's Republic
288 of China. The chief architect is Professor Weiwu Hu.
290 config MACH_LOONGSON1
291 bool "Loongson 1 family of machines"
292 select SYS_SUPPORTS_ZBOOT
294 This enables support for the Loongson 1 based machines.
296 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
297 the ICT (Institute of Computing Technology) and the Chinese Academy
301 bool "MIPS Malta board"
302 select ARCH_MAY_HAVE_PC_FDC
308 select DMA_NONCOHERENT
309 select GENERIC_ISA_DMA
310 select HAVE_PCSPKR_PLATFORM
317 select MIPS_CPU_SCACHE
318 select PCI_GT64XXX_PCI0
321 select SYS_HAS_CPU_MIPS32_R1
322 select SYS_HAS_CPU_MIPS32_R2
323 select SYS_HAS_CPU_MIPS64_R1
324 select SYS_HAS_CPU_MIPS64_R2
325 select SYS_HAS_CPU_NEVADA
326 select SYS_HAS_CPU_RM7000
327 select SYS_HAS_EARLY_PRINTK
328 select SYS_SUPPORTS_32BIT_KERNEL
329 select SYS_SUPPORTS_64BIT_KERNEL
330 select SYS_SUPPORTS_BIG_ENDIAN
331 select SYS_SUPPORTS_LITTLE_ENDIAN
332 select SYS_SUPPORTS_MIPS_CMP
333 select SYS_SUPPORTS_MULTITHREADING
334 select SYS_SUPPORTS_SMARTMIPS
335 select SYS_SUPPORTS_ZBOOT
337 This enables support for the MIPS Technologies Malta evaluation
341 bool "MIPS SEAD3 board"
347 select CPU_MIPSR2_IRQ_VI
348 select CPU_MIPSR2_IRQ_EI
349 select DMA_NONCOHERENT
353 select SYS_HAS_CPU_MIPS32_R1
354 select SYS_HAS_CPU_MIPS32_R2
355 select SYS_HAS_CPU_MIPS64_R1
356 select SYS_HAS_EARLY_PRINTK
357 select SYS_SUPPORTS_32BIT_KERNEL
358 select SYS_SUPPORTS_64BIT_KERNEL
359 select SYS_SUPPORTS_BIG_ENDIAN
360 select SYS_SUPPORTS_LITTLE_ENDIAN
361 select SYS_SUPPORTS_SMARTMIPS
362 select SYS_SUPPORTS_MICROMIPS
363 select USB_ARCH_HAS_EHCI
364 select USB_EHCI_BIG_ENDIAN_DESC
365 select USB_EHCI_BIG_ENDIAN_MMIO
368 This enables support for the MIPS Technologies SEAD3 evaluation
372 bool "NEC EMMA2RH Mark-eins board"
376 This enables support for the NEC Electronics Mark-eins boards.
379 bool "NEC VR4100 series based machines"
382 select SYS_HAS_CPU_VR41XX
383 select ARCH_REQUIRE_GPIOLIB
386 bool "NXP STB220 board"
389 Support for NXP Semiconductors STB220 Development Board.
396 Support for NXP Semiconductors STB225 Development Board.
399 bool "PMC-Sierra MSP chipsets"
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
413 select USB_EHCI_BIG_ENDIAN_MMIO
414 select USB_EHCI_BIG_ENDIAN_DESC
416 This adds support for the PMC-Sierra family of Multi-Service
417 Processor System-On-A-Chips. These parts include a number
418 of integrated peripherals, interfaces and DSPs in addition to
419 a variety of MIPS cores.
422 bool "Ralink based machines"
426 select DMA_NONCOHERENT
429 select SYS_HAS_CPU_MIPS32_R1
430 select SYS_HAS_CPU_MIPS32_R2
431 select SYS_SUPPORTS_32BIT_KERNEL
432 select SYS_SUPPORTS_LITTLE_ENDIAN
433 select SYS_HAS_EARLY_PRINTK
434 select HAVE_MACH_CLKDEV
436 select ARCH_HAS_RESET_CONTROLLER
437 select RESET_CONTROLLER
440 bool "SGI IP22 (Indy/Indigo2)"
446 select DEFAULT_SGI_PARTITION
447 select DMA_NONCOHERENT
451 select IP22_CPU_SCACHE
453 select GENERIC_ISA_DMA_SUPPORT_BROKEN
455 select SGI_HAS_INDYDOG
461 select SYS_HAS_CPU_R4X00
462 select SYS_HAS_CPU_R5000
464 # Disable EARLY_PRINTK for now since it leads to overwritten prom
465 # memory during early boot on some machines.
467 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
468 # for a more details discussion
470 # select SYS_HAS_EARLY_PRINTK
471 select SYS_SUPPORTS_32BIT_KERNEL
472 select SYS_SUPPORTS_64BIT_KERNEL
473 select SYS_SUPPORTS_BIG_ENDIAN
475 This are the SGI Indy, Challenge S and Indigo2, as well as certain
476 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
477 that runs on these, say Y here.
480 bool "SGI IP27 (Origin200/2000)"
484 select DEFAULT_SGI_PARTITION
486 select SYS_HAS_EARLY_PRINTK
488 select NR_CPUS_DEFAULT_64
489 select SYS_HAS_CPU_R10000
490 select SYS_SUPPORTS_64BIT_KERNEL
491 select SYS_SUPPORTS_BIG_ENDIAN
492 select SYS_SUPPORTS_NUMA
493 select SYS_SUPPORTS_SMP
495 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
496 workstations. To compile a Linux kernel that runs on these, say Y
500 bool "SGI IP28 (Indigo2 R10k)"
506 select DEFAULT_SGI_PARTITION
507 select DMA_NONCOHERENT
508 select GENERIC_ISA_DMA_SUPPORT_BROKEN
514 select SGI_HAS_INDYDOG
520 select SYS_HAS_CPU_R10000
522 # Disable EARLY_PRINTK for now since it leads to overwritten prom
523 # memory during early boot on some machines.
525 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
526 # for a more details discussion
528 # select SYS_HAS_EARLY_PRINTK
529 select SYS_SUPPORTS_64BIT_KERNEL
530 select SYS_SUPPORTS_BIG_ENDIAN
532 This is the SGI Indigo2 with R10000 processor. To compile a Linux
533 kernel that runs on these, say Y here.
542 select DMA_NONCOHERENT
545 select R5000_CPU_SCACHE
546 select RM7000_CPU_SCACHE
547 select SYS_HAS_CPU_R5000
548 select SYS_HAS_CPU_R10000 if BROKEN
549 select SYS_HAS_CPU_RM7000
550 select SYS_HAS_CPU_NEVADA
551 select SYS_SUPPORTS_64BIT_KERNEL
552 select SYS_SUPPORTS_BIG_ENDIAN
554 If you want this kernel to run on SGI O2 workstation, say Y here.
557 bool "Sibyte BCM91120C-CRhine"
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"
570 select SIBYTE_BCM1120
572 select SYS_HAS_CPU_SB1
573 select SYS_SUPPORTS_BIG_ENDIAN
574 select SYS_SUPPORTS_LITTLE_ENDIAN
577 bool "Sibyte BCM91125C-CRhone"
580 select SIBYTE_BCM1125
582 select SYS_HAS_CPU_SB1
583 select SYS_SUPPORTS_BIG_ENDIAN
584 select SYS_SUPPORTS_HIGHMEM
585 select SYS_SUPPORTS_LITTLE_ENDIAN
588 bool "Sibyte BCM91125E-Rhone"
591 select SIBYTE_BCM1125H
593 select SYS_HAS_CPU_SB1
594 select SYS_SUPPORTS_BIG_ENDIAN
595 select SYS_SUPPORTS_LITTLE_ENDIAN
598 bool "Sibyte BCM91250A-SWARM"
601 select HAVE_PATA_PLATFORM
604 select SYS_HAS_CPU_SB1
605 select SYS_SUPPORTS_BIG_ENDIAN
606 select SYS_SUPPORTS_HIGHMEM
607 select SYS_SUPPORTS_LITTLE_ENDIAN
608 select ZONE_DMA32 if 64BIT
610 config SIBYTE_LITTLESUR
611 bool "Sibyte BCM91250C2-LittleSur"
614 select HAVE_PATA_PLATFORM
617 select SYS_HAS_CPU_SB1
618 select SYS_SUPPORTS_BIG_ENDIAN
619 select SYS_SUPPORTS_HIGHMEM
620 select SYS_SUPPORTS_LITTLE_ENDIAN
622 config SIBYTE_SENTOSA
623 bool "Sibyte BCM91250E-Sentosa"
628 select SYS_HAS_CPU_SB1
629 select SYS_SUPPORTS_BIG_ENDIAN
630 select SYS_SUPPORTS_LITTLE_ENDIAN
633 bool "Sibyte BCM91480B-BigSur"
636 select NR_CPUS_DEFAULT_4
637 select SIBYTE_BCM1x80
639 select SYS_HAS_CPU_SB1
640 select SYS_SUPPORTS_BIG_ENDIAN
641 select SYS_SUPPORTS_HIGHMEM
642 select SYS_SUPPORTS_LITTLE_ENDIAN
643 select ZONE_DMA32 if 64BIT
646 bool "SNI RM200/300/400"
647 select FW_ARC if CPU_LITTLE_ENDIAN
648 select FW_ARC32 if CPU_LITTLE_ENDIAN
649 select FW_SNIPROM if CPU_BIG_ENDIAN
650 select ARCH_MAY_HAVE_PC_FDC
654 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
655 select DMA_NONCOHERENT
656 select GENERIC_ISA_DMA
657 select HAVE_PCSPKR_PLATFORM
664 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
665 select SYS_HAS_CPU_R4X00
666 select SYS_HAS_CPU_R5000
667 select SYS_HAS_CPU_R10000
668 select R5000_CPU_SCACHE
669 select SYS_HAS_EARLY_PRINTK
670 select SYS_SUPPORTS_32BIT_KERNEL
671 select SYS_SUPPORTS_64BIT_KERNEL
672 select SYS_SUPPORTS_BIG_ENDIAN
673 select SYS_SUPPORTS_HIGHMEM
674 select SYS_SUPPORTS_LITTLE_ENDIAN
676 The SNI RM200/300/400 are MIPS-based machines manufactured by
677 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
678 Technology and now in turn merged with Fujitsu. Say Y here to
679 support this machine type.
682 bool "Toshiba TX39 series based machines"
685 bool "Toshiba TX49 series based machines"
687 config MIKROTIK_RB532
688 bool "Mikrotik RB532 boards"
691 select DMA_NONCOHERENT
694 select SYS_HAS_CPU_MIPS32_R1
695 select SYS_SUPPORTS_32BIT_KERNEL
696 select SYS_SUPPORTS_LITTLE_ENDIAN
699 select ARCH_REQUIRE_GPIOLIB
701 Support the Mikrotik(tm) RouterBoard 532 series,
702 based on the IDT RC32434 SoC.
704 config CAVIUM_OCTEON_SOC
705 bool "Cavium Networks Octeon SoC based boards"
707 select 64BIT_PHYS_ADDR
709 select SYS_SUPPORTS_64BIT_KERNEL
710 select SYS_SUPPORTS_BIG_ENDIAN
712 select SYS_SUPPORTS_HOTPLUG_CPU
713 select SYS_HAS_EARLY_PRINTK
714 select SYS_HAS_CPU_CAVIUM_OCTEON
718 select USB_ARCH_HAS_OHCI
719 select USB_ARCH_HAS_EHCI
721 select ARCH_REQUIRE_GPIOLIB
723 This option supports all of the Octeon reference boards from Cavium
724 Networks. It builds a kernel that dynamically determines the Octeon
725 CPU type and supports all known board reference implementations.
726 Some of the supported boards are:
733 Say Y here for most Octeon reference boards.
736 bool "Netlogic XLR/XLS based systems"
739 select SYS_HAS_CPU_XLR
740 select SYS_SUPPORTS_SMP
743 select SYS_SUPPORTS_32BIT_KERNEL
744 select SYS_SUPPORTS_64BIT_KERNEL
745 select 64BIT_PHYS_ADDR
746 select SYS_SUPPORTS_BIG_ENDIAN
747 select SYS_SUPPORTS_HIGHMEM
749 select NR_CPUS_DEFAULT_32
753 select ZONE_DMA32 if 64BIT
755 select SYS_HAS_EARLY_PRINTK
756 select USB_ARCH_HAS_OHCI if USB_SUPPORT
757 select USB_ARCH_HAS_EHCI if USB_SUPPORT
758 select SYS_SUPPORTS_ZBOOT
759 select SYS_SUPPORTS_ZBOOT_UART16550
761 Support for systems based on Netlogic XLR and XLS processors.
762 Say Y here if you have a XLR or XLS based board.
765 bool "Netlogic XLP based systems"
768 select SYS_HAS_CPU_XLP
769 select SYS_SUPPORTS_SMP
771 select SYS_SUPPORTS_32BIT_KERNEL
772 select SYS_SUPPORTS_64BIT_KERNEL
773 select 64BIT_PHYS_ADDR
774 select SYS_SUPPORTS_BIG_ENDIAN
775 select SYS_SUPPORTS_LITTLE_ENDIAN
776 select SYS_SUPPORTS_HIGHMEM
778 select NR_CPUS_DEFAULT_32
782 select ZONE_DMA32 if 64BIT
784 select SYS_HAS_EARLY_PRINTK
786 select SYS_SUPPORTS_ZBOOT
787 select SYS_SUPPORTS_ZBOOT_UART16550
789 This board is based on Netlogic XLP Processor.
790 Say Y here if you have a XLP based board.
794 source "arch/mips/alchemy/Kconfig"
795 source "arch/mips/ath79/Kconfig"
796 source "arch/mips/bcm47xx/Kconfig"
797 source "arch/mips/bcm63xx/Kconfig"
798 source "arch/mips/jazz/Kconfig"
799 source "arch/mips/jz4740/Kconfig"
800 source "arch/mips/lantiq/Kconfig"
801 source "arch/mips/lasat/Kconfig"
802 source "arch/mips/pmcs-msp71xx/Kconfig"
803 source "arch/mips/ralink/Kconfig"
804 source "arch/mips/sgi-ip27/Kconfig"
805 source "arch/mips/sibyte/Kconfig"
806 source "arch/mips/txx9/Kconfig"
807 source "arch/mips/vr41xx/Kconfig"
808 source "arch/mips/cavium-octeon/Kconfig"
809 source "arch/mips/loongson/Kconfig"
810 source "arch/mips/loongson1/Kconfig"
811 source "arch/mips/netlogic/Kconfig"
815 config RWSEM_GENERIC_SPINLOCK
819 config RWSEM_XCHGADD_ALGORITHM
822 config ARCH_HAS_ILOG2_U32
826 config ARCH_HAS_ILOG2_U64
830 config GENERIC_HWEIGHT
834 config GENERIC_CALIBRATE_DELAY
838 config SCHED_OMIT_FRAME_POINTER
843 # Select some configuration options automatically based on user selections.
848 config ARCH_MAY_HAVE_PC_FDC
891 select ARCH_REQUIRE_GPIOLIB
897 config ARCH_DMA_ADDR_T_64BIT
898 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
903 config DMA_NONCOHERENT
905 select NEED_DMA_MAP_STATE
907 config NEED_DMA_MAP_STATE
910 config SYS_HAS_EARLY_PRINTK
914 bool "Support for hot-pluggable CPUs"
915 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
917 Say Y here to allow turning CPUs off and on. CPUs can be
918 controlled through /sys/devices/system/cpu.
919 (Note: power management support will enable this option
920 automatically on SMP systems. )
921 Say N if you want to disable CPU hotplug.
923 config SYS_SUPPORTS_HOTPLUG_CPU
947 config GENERIC_ISA_DMA
949 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
952 config GENERIC_ISA_DMA_SUPPORT_BROKEN
954 select GENERIC_ISA_DMA
963 # Endianness selection. Sufficiently obscure so many users don't know what to
964 # answer,so we try hard to limit the available choices. Also the use of a
965 # choice statement should be more obvious to the user.
968 prompt "Endianness selection"
970 Some MIPS machines can be configured for either little or big endian
971 byte order. These modes require different kernels and a different
972 Linux distribution. In general there is one preferred byteorder for a
973 particular system but some systems are just as commonly used in the
974 one or the other endianness.
976 config CPU_BIG_ENDIAN
978 depends on SYS_SUPPORTS_BIG_ENDIAN
980 config CPU_LITTLE_ENDIAN
982 depends on SYS_SUPPORTS_LITTLE_ENDIAN
989 config SYS_SUPPORTS_APM_EMULATION
992 config SYS_SUPPORTS_BIG_ENDIAN
995 config SYS_SUPPORTS_LITTLE_ENDIAN
998 config SYS_SUPPORTS_HUGETLBFS
1000 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1003 config MIPS_HUGE_TLB_SUPPORT
1004 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1027 config PCI_GT64XXX_PCI0
1030 config NO_EXCEPT_FILL
1037 select DMA_NONCOHERENT
1039 select SWAP_IO_SPACE
1040 select SYS_HAS_CPU_R5500
1041 select SYS_SUPPORTS_32BIT_KERNEL
1042 select SYS_SUPPORTS_64BIT_KERNEL
1043 select SYS_SUPPORTS_BIG_ENDIAN
1050 select DMA_NONCOHERENT
1051 select SYS_HAS_CPU_MIPS32_R2
1052 select SYS_SUPPORTS_32BIT_KERNEL
1053 select SYS_SUPPORTS_LITTLE_ENDIAN
1054 select SYS_SUPPORTS_BIG_ENDIAN
1055 select CPU_MIPSR2_IRQ_VI
1061 config SWAP_IO_SPACE
1064 config SGI_HAS_INDYDOG
1076 config SGI_HAS_ZILOG
1079 config SGI_HAS_I8042
1082 config DEFAULT_SGI_PARTITION
1094 config MIPS_L1_CACHE_SHIFT
1096 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1097 default "6" if MIPS_CPU_SCACHE
1098 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
1101 config HAVE_STD_PC_SERIAL_PORT
1105 bool "ARC console support"
1106 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1110 depends on MACH_JAZZ || SNI_RM || SGI_IP32
1115 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1124 menu "CPU selection"
1130 config CPU_LOONGSON2E
1132 depends on SYS_HAS_CPU_LOONGSON2E
1133 select CPU_LOONGSON2
1135 The Loongson 2E processor implements the MIPS III instruction set
1136 with many extensions.
1138 It has an internal FPGA northbridge, which is compatible to
1141 config CPU_LOONGSON2F
1143 depends on SYS_HAS_CPU_LOONGSON2F
1144 select CPU_LOONGSON2
1145 select ARCH_REQUIRE_GPIOLIB
1147 The Loongson 2F processor implements the MIPS III instruction set
1148 with many extensions.
1150 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1151 have a similar programming interface with FPGA northbridge used in
1154 config CPU_LOONGSON1B
1156 depends on SYS_HAS_CPU_LOONGSON1B
1157 select CPU_LOONGSON1
1159 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1160 release 2 instruction set.
1162 config CPU_MIPS32_R1
1163 bool "MIPS32 Release 1"
1164 depends on SYS_HAS_CPU_MIPS32_R1
1165 select CPU_HAS_PREFETCH
1166 select CPU_SUPPORTS_32BIT_KERNEL
1167 select CPU_SUPPORTS_HIGHMEM
1169 Choose this option to build a kernel for release 1 or later of the
1170 MIPS32 architecture. Most modern embedded systems with a 32-bit
1171 MIPS processor are based on a MIPS32 processor. If you know the
1172 specific type of processor in your system, choose those that one
1173 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1174 Release 2 of the MIPS32 architecture is available since several
1175 years so chances are you even have a MIPS32 Release 2 processor
1176 in which case you should choose CPU_MIPS32_R2 instead for better
1179 config CPU_MIPS32_R2
1180 bool "MIPS32 Release 2"
1181 depends on SYS_HAS_CPU_MIPS32_R2
1182 select CPU_HAS_PREFETCH
1183 select CPU_SUPPORTS_32BIT_KERNEL
1184 select CPU_SUPPORTS_HIGHMEM
1187 Choose this option to build a kernel for release 2 or later of the
1188 MIPS32 architecture. Most modern embedded systems with a 32-bit
1189 MIPS processor are based on a MIPS32 processor. If you know the
1190 specific type of processor in your system, choose those that one
1191 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1193 config CPU_MIPS64_R1
1194 bool "MIPS64 Release 1"
1195 depends on SYS_HAS_CPU_MIPS64_R1
1196 select CPU_HAS_PREFETCH
1197 select CPU_SUPPORTS_32BIT_KERNEL
1198 select CPU_SUPPORTS_64BIT_KERNEL
1199 select CPU_SUPPORTS_HIGHMEM
1200 select CPU_SUPPORTS_HUGEPAGES
1202 Choose this option to build a kernel for release 1 or later of the
1203 MIPS64 architecture. Many modern embedded systems with a 64-bit
1204 MIPS processor are based on a MIPS64 processor. If you know the
1205 specific type of processor in your system, choose those that one
1206 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1207 Release 2 of the MIPS64 architecture is available since several
1208 years so chances are you even have a MIPS64 Release 2 processor
1209 in which case you should choose CPU_MIPS64_R2 instead for better
1212 config CPU_MIPS64_R2
1213 bool "MIPS64 Release 2"
1214 depends on SYS_HAS_CPU_MIPS64_R2
1215 select CPU_HAS_PREFETCH
1216 select CPU_SUPPORTS_32BIT_KERNEL
1217 select CPU_SUPPORTS_64BIT_KERNEL
1218 select CPU_SUPPORTS_HIGHMEM
1219 select CPU_SUPPORTS_HUGEPAGES
1221 Choose this option to build a kernel for release 2 or later of the
1222 MIPS64 architecture. Many modern embedded systems with a 64-bit
1223 MIPS processor are based on a MIPS64 processor. If you know the
1224 specific type of processor in your system, choose those that one
1225 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1229 depends on SYS_HAS_CPU_R3000
1231 select CPU_SUPPORTS_32BIT_KERNEL
1232 select CPU_SUPPORTS_HIGHMEM
1234 Please make sure to pick the right CPU type. Linux/MIPS is not
1235 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1236 *not* work on R4000 machines and vice versa. However, since most
1237 of the supported machines have an R4000 (or similar) CPU, R4x00
1238 might be a safe bet. If the resulting kernel does not work,
1239 try to recompile with R3000.
1243 depends on SYS_HAS_CPU_TX39XX
1244 select CPU_SUPPORTS_32BIT_KERNEL
1248 depends on SYS_HAS_CPU_VR41XX
1249 select CPU_SUPPORTS_32BIT_KERNEL
1250 select CPU_SUPPORTS_64BIT_KERNEL
1252 The options selects support for the NEC VR4100 series of processors.
1253 Only choose this option if you have one of these processors as a
1254 kernel built with this option will not run on any other type of
1255 processor or vice versa.
1259 depends on SYS_HAS_CPU_R4300
1260 select CPU_SUPPORTS_32BIT_KERNEL
1261 select CPU_SUPPORTS_64BIT_KERNEL
1263 MIPS Technologies R4300-series processors.
1267 depends on SYS_HAS_CPU_R4X00
1268 select CPU_SUPPORTS_32BIT_KERNEL
1269 select CPU_SUPPORTS_64BIT_KERNEL
1270 select CPU_SUPPORTS_HUGEPAGES
1272 MIPS Technologies R4000-series processors other than 4300, including
1273 the R4000, R4400, R4600, and 4700.
1277 depends on SYS_HAS_CPU_TX49XX
1278 select CPU_HAS_PREFETCH
1279 select CPU_SUPPORTS_32BIT_KERNEL
1280 select CPU_SUPPORTS_64BIT_KERNEL
1281 select CPU_SUPPORTS_HUGEPAGES
1285 depends on SYS_HAS_CPU_R5000
1286 select CPU_SUPPORTS_32BIT_KERNEL
1287 select CPU_SUPPORTS_64BIT_KERNEL
1288 select CPU_SUPPORTS_HUGEPAGES
1290 MIPS Technologies R5000-series processors other than the Nevada.
1294 depends on SYS_HAS_CPU_R5432
1295 select CPU_SUPPORTS_32BIT_KERNEL
1296 select CPU_SUPPORTS_64BIT_KERNEL
1297 select CPU_SUPPORTS_HUGEPAGES
1301 depends on SYS_HAS_CPU_R5500
1302 select CPU_SUPPORTS_32BIT_KERNEL
1303 select CPU_SUPPORTS_64BIT_KERNEL
1304 select CPU_SUPPORTS_HUGEPAGES
1306 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1311 depends on SYS_HAS_CPU_R6000
1312 select CPU_SUPPORTS_32BIT_KERNEL
1314 MIPS Technologies R6000 and R6000A series processors. Note these
1315 processors are extremely rare and the support for them is incomplete.
1319 depends on SYS_HAS_CPU_NEVADA
1320 select CPU_SUPPORTS_32BIT_KERNEL
1321 select CPU_SUPPORTS_64BIT_KERNEL
1322 select CPU_SUPPORTS_HUGEPAGES
1324 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1328 depends on SYS_HAS_CPU_R8000
1329 select CPU_HAS_PREFETCH
1330 select CPU_SUPPORTS_64BIT_KERNEL
1332 MIPS Technologies R8000 processors. Note these processors are
1333 uncommon and the support for them is incomplete.
1337 depends on SYS_HAS_CPU_R10000
1338 select CPU_HAS_PREFETCH
1339 select CPU_SUPPORTS_32BIT_KERNEL
1340 select CPU_SUPPORTS_64BIT_KERNEL
1341 select CPU_SUPPORTS_HIGHMEM
1342 select CPU_SUPPORTS_HUGEPAGES
1344 MIPS Technologies R10000-series processors.
1348 depends on SYS_HAS_CPU_RM7000
1349 select CPU_HAS_PREFETCH
1350 select CPU_SUPPORTS_32BIT_KERNEL
1351 select CPU_SUPPORTS_64BIT_KERNEL
1352 select CPU_SUPPORTS_HIGHMEM
1353 select CPU_SUPPORTS_HUGEPAGES
1357 depends on SYS_HAS_CPU_SB1
1358 select CPU_SUPPORTS_32BIT_KERNEL
1359 select CPU_SUPPORTS_64BIT_KERNEL
1360 select CPU_SUPPORTS_HIGHMEM
1361 select CPU_SUPPORTS_HUGEPAGES
1362 select WEAK_ORDERING
1364 config CPU_CAVIUM_OCTEON
1365 bool "Cavium Octeon processor"
1366 depends on SYS_HAS_CPU_CAVIUM_OCTEON
1367 select ARCH_SPARSEMEM_ENABLE
1368 select CPU_HAS_PREFETCH
1369 select CPU_SUPPORTS_64BIT_KERNEL
1370 select SYS_SUPPORTS_SMP
1371 select NR_CPUS_DEFAULT_16
1372 select WEAK_ORDERING
1373 select CPU_SUPPORTS_HIGHMEM
1374 select CPU_SUPPORTS_HUGEPAGES
1377 select USB_EHCI_BIG_ENDIAN_MMIO
1379 The Cavium Octeon processor is a highly integrated chip containing
1380 many ethernet hardware widgets for networking tasks. The processor
1381 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1382 Full details can be found at http://www.caviumnetworks.com.
1384 config CPU_BMIPS3300
1386 depends on SYS_HAS_CPU_BMIPS3300
1389 Broadcom BMIPS3300 processors.
1391 config CPU_BMIPS4350
1393 depends on SYS_HAS_CPU_BMIPS4350
1395 select SYS_SUPPORTS_SMP
1396 select SYS_SUPPORTS_HOTPLUG_CPU
1398 Broadcom BMIPS4350 ("VIPER") processors.
1400 config CPU_BMIPS4380
1402 depends on SYS_HAS_CPU_BMIPS4380
1404 select SYS_SUPPORTS_SMP
1405 select SYS_SUPPORTS_HOTPLUG_CPU
1407 Broadcom BMIPS4380 processors.
1409 config CPU_BMIPS5000
1411 depends on SYS_HAS_CPU_BMIPS5000
1413 select CPU_SUPPORTS_HIGHMEM
1414 select MIPS_CPU_SCACHE
1415 select SYS_SUPPORTS_SMP
1416 select SYS_SUPPORTS_HOTPLUG_CPU
1418 Broadcom BMIPS5000 processors.
1421 bool "Netlogic XLR SoC"
1422 depends on SYS_HAS_CPU_XLR
1423 select CPU_SUPPORTS_32BIT_KERNEL
1424 select CPU_SUPPORTS_64BIT_KERNEL
1425 select CPU_SUPPORTS_HIGHMEM
1426 select CPU_SUPPORTS_HUGEPAGES
1427 select WEAK_ORDERING
1428 select WEAK_REORDERING_BEYOND_LLSC
1430 Netlogic Microsystems XLR/XLS processors.
1433 bool "Netlogic XLP SoC"
1434 depends on SYS_HAS_CPU_XLP
1435 select CPU_SUPPORTS_32BIT_KERNEL
1436 select CPU_SUPPORTS_64BIT_KERNEL
1437 select CPU_SUPPORTS_HIGHMEM
1438 select WEAK_ORDERING
1439 select WEAK_REORDERING_BEYOND_LLSC
1440 select CPU_HAS_PREFETCH
1443 Netlogic Microsystems XLP processors.
1447 config CPU_NOP_WORKAROUNDS
1450 config CPU_JUMP_WORKAROUNDS
1453 config CPU_LOONGSON2F_WORKAROUNDS
1454 bool "Loongson 2F Workarounds"
1456 select CPU_NOP_WORKAROUNDS
1457 select CPU_JUMP_WORKAROUNDS
1459 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1460 require workarounds. Without workarounds the system may hang
1461 unexpectedly. For more information please refer to the gas
1462 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1464 Loongson 2F03 and later have fixed these issues and no workarounds
1465 are needed. The workarounds have no significant side effect on them
1466 but may decrease the performance of the system so this option should
1467 be disabled unless the kernel is intended to be run on 2F01 or 2F02
1470 If unsure, please say Y.
1471 endif # CPU_LOONGSON2F
1473 config SYS_SUPPORTS_ZBOOT
1475 select HAVE_KERNEL_GZIP
1476 select HAVE_KERNEL_BZIP2
1477 select HAVE_KERNEL_LZ4
1478 select HAVE_KERNEL_LZMA
1479 select HAVE_KERNEL_LZO
1480 select HAVE_KERNEL_XZ
1482 config SYS_SUPPORTS_ZBOOT_UART16550
1484 select SYS_SUPPORTS_ZBOOT
1486 config CPU_LOONGSON2
1488 select CPU_SUPPORTS_32BIT_KERNEL
1489 select CPU_SUPPORTS_64BIT_KERNEL
1490 select CPU_SUPPORTS_HIGHMEM
1491 select CPU_SUPPORTS_HUGEPAGES
1493 config CPU_LOONGSON1
1497 select CPU_HAS_PREFETCH
1498 select CPU_SUPPORTS_32BIT_KERNEL
1499 select CPU_SUPPORTS_HIGHMEM
1504 select CPU_SUPPORTS_32BIT_KERNEL
1505 select DMA_NONCOHERENT
1507 select SWAP_IO_SPACE
1508 select WEAK_ORDERING
1510 config SYS_HAS_CPU_LOONGSON2E
1513 config SYS_HAS_CPU_LOONGSON2F
1515 select CPU_SUPPORTS_CPUFREQ
1516 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1517 select CPU_SUPPORTS_UNCACHED_ACCELERATED
1519 config SYS_HAS_CPU_LOONGSON1B
1522 config SYS_HAS_CPU_MIPS32_R1
1525 config SYS_HAS_CPU_MIPS32_R2
1528 config SYS_HAS_CPU_MIPS64_R1
1531 config SYS_HAS_CPU_MIPS64_R2
1534 config SYS_HAS_CPU_R3000
1537 config SYS_HAS_CPU_TX39XX
1540 config SYS_HAS_CPU_VR41XX
1543 config SYS_HAS_CPU_R4300
1546 config SYS_HAS_CPU_R4X00
1549 config SYS_HAS_CPU_TX49XX
1552 config SYS_HAS_CPU_R5000
1555 config SYS_HAS_CPU_R5432
1558 config SYS_HAS_CPU_R5500
1561 config SYS_HAS_CPU_R6000
1564 config SYS_HAS_CPU_NEVADA
1567 config SYS_HAS_CPU_R8000
1570 config SYS_HAS_CPU_R10000
1573 config SYS_HAS_CPU_RM7000
1576 config SYS_HAS_CPU_SB1
1579 config SYS_HAS_CPU_CAVIUM_OCTEON
1582 config SYS_HAS_CPU_BMIPS3300
1585 config SYS_HAS_CPU_BMIPS4350
1588 config SYS_HAS_CPU_BMIPS4380
1591 config SYS_HAS_CPU_BMIPS5000
1594 config SYS_HAS_CPU_XLR
1597 config SYS_HAS_CPU_XLP
1601 # CPU may reorder R->R, R->W, W->R, W->W
1602 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1604 config WEAK_ORDERING
1608 # CPU may reorder reads and writes beyond LL/SC
1609 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1611 config WEAK_REORDERING_BEYOND_LLSC
1616 # These two indicate any level of the MIPS32 and MIPS64 architecture
1620 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1624 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1627 # These two indicate the revision of the architecture, either Release 1 or Release 2
1631 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1635 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1637 config SYS_SUPPORTS_32BIT_KERNEL
1639 config SYS_SUPPORTS_64BIT_KERNEL
1641 config CPU_SUPPORTS_32BIT_KERNEL
1643 config CPU_SUPPORTS_64BIT_KERNEL
1645 config CPU_SUPPORTS_CPUFREQ
1647 config CPU_SUPPORTS_ADDRWINCFG
1649 config CPU_SUPPORTS_HUGEPAGES
1651 config CPU_SUPPORTS_UNCACHED_ACCELERATED
1653 config MIPS_PGD_C0_CONTEXT
1655 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1658 # Set to y for ptrace access to watch registers.
1660 config HARDWARE_WATCHPOINTS
1662 default y if CPU_MIPSR1 || CPU_MIPSR2
1667 prompt "Kernel code model"
1669 You should only select this option if you have a workload that
1670 actually benefits from 64-bit processing or if your machine has
1671 large memory. You will only be presented a single option in this
1672 menu if your system does not support both 32-bit and 64-bit kernels.
1675 bool "32-bit kernel"
1676 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1679 Select this option if you want to build a 32-bit kernel.
1681 bool "64-bit kernel"
1682 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1684 Select this option if you want to build a 64-bit kernel.
1689 bool "KVM Guest Kernel"
1690 depends on BROKEN_ON_SMP
1692 Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1694 config KVM_HOST_FREQ
1695 int "KVM Host Processor Frequency (MHz)"
1696 depends on KVM_GUEST
1699 Select this option if building a guest kernel for KVM to skip
1700 RTC emulation when determining guest CPU Frequency. Instead, the guest
1701 processor frequency is automatically derived from the host frequency.
1704 prompt "Kernel page size"
1705 default PAGE_SIZE_4KB
1707 config PAGE_SIZE_4KB
1709 depends on !CPU_LOONGSON2
1711 This option select the standard 4kB Linux page size. On some
1712 R3000-family processors this is the only available page size. Using
1713 4kB page size will minimize memory consumption and is therefore
1714 recommended for low memory systems.
1716 config PAGE_SIZE_8KB
1718 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1720 Using 8kB page size will result in higher performance kernel at
1721 the price of higher memory consumption. This option is available
1722 only on R8000 and cnMIPS processors. Note that you will need a
1723 suitable Linux distribution to support this.
1725 config PAGE_SIZE_16KB
1727 depends on !CPU_R3000 && !CPU_TX39XX
1729 Using 16kB page size will result in higher performance kernel at
1730 the price of higher memory consumption. This option is available on
1731 all non-R3000 family processors. Note that you will need a suitable
1732 Linux distribution to support this.
1734 config PAGE_SIZE_32KB
1736 depends on CPU_CAVIUM_OCTEON
1738 Using 32kB page size will result in higher performance kernel at
1739 the price of higher memory consumption. This option is available
1740 only on cnMIPS cores. Note that you will need a suitable Linux
1741 distribution to support this.
1743 config PAGE_SIZE_64KB
1745 depends on !CPU_R3000 && !CPU_TX39XX
1747 Using 64kB page size will result in higher performance kernel at
1748 the price of higher memory consumption. This option is available on
1749 all non-R3000 family processor. Not that at the time of this
1750 writing this option is still high experimental.
1754 config FORCE_MAX_ZONEORDER
1755 int "Maximum zone order"
1756 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
1757 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
1758 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
1759 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
1760 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
1761 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
1765 The kernel memory allocator divides physically contiguous memory
1766 blocks into "zones", where each zone is a power of two number of
1767 pages. This option selects the largest power of two that the kernel
1768 keeps in the memory allocator. If you need to allocate very large
1769 blocks of physically contiguous memory, then you may need to
1770 increase this value.
1772 This config option is actually maximum order plus one. For example,
1773 a value of 11 means that the largest free memory block is 2^10 pages.
1775 The page size is not necessarily 4KB. Keep this in mind
1776 when choosing a value for this option.
1779 bool "Use GIC global counter for clock events"
1780 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1782 Use the GIC global counter for the clock events. The R4K clock
1783 event driver is always present, so if the platform ends up not
1784 detecting a GIC, it will fall back to the R4K timer for the
1785 generation of clock events.
1790 config IP22_CPU_SCACHE
1795 # Support for a MIPS32 / MIPS64 style S-caches
1797 config MIPS_CPU_SCACHE
1801 config R5000_CPU_SCACHE
1805 config RM7000_CPU_SCACHE
1809 config SIBYTE_DMA_PAGEOPS
1810 bool "Use DMA to clear/copy pages"
1813 Instead of using the CPU to zero and copy pages, use a Data Mover
1814 channel. These DMA channels are otherwise unused by the standard
1815 SiByte Linux port. Seems to give a small performance benefit.
1817 config CPU_HAS_PREFETCH
1820 config CPU_GENERIC_DUMP_TLB
1822 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1826 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1828 config CPU_R4K_CACHE_TLB
1830 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1833 prompt "MIPS MT options"
1835 config MIPS_MT_DISABLED
1836 bool "Disable multithreading support."
1838 Use this option if your workload can't take advantage of
1839 MIPS hardware multithreading support. On systems that don't have
1840 the option of an MT-enabled processor this option will be the only
1841 option in this menu.
1844 bool "Use 1 TC on each available VPE for SMP"
1845 depends on SYS_SUPPORTS_MULTITHREADING
1846 select CPU_MIPSR2_IRQ_VI
1847 select CPU_MIPSR2_IRQ_EI
1850 select SYS_SUPPORTS_SCHED_SMT if SMP
1851 select SYS_SUPPORTS_SMP
1853 select MIPS_PERF_SHARED_TC_COUNTERS
1855 This is a kernel model which is known a VSMP but lately has been
1856 marketesed into SMVP.
1857 Virtual SMP uses the processor's VPEs to implement virtual
1858 processors. In currently available configuration of the 34K processor
1859 this allows for a dual processor. Both processors will share the same
1860 primary caches; each will obtain the half of the TLB for it's own
1861 exclusive use. For a layman this model can be described as similar to
1862 what Intel calls Hyperthreading.
1864 For further information see http://www.linux-mips.org/wiki/34K#VSMP
1867 bool "SMTC: Use all TCs on all VPEs for SMP"
1868 depends on CPU_MIPS32_R2
1869 #depends on CPU_MIPS64_R2 # once there is hardware ...
1870 depends on SYS_SUPPORTS_MULTITHREADING
1871 select CPU_MIPSR2_IRQ_VI
1872 select CPU_MIPSR2_IRQ_EI
1874 select NR_CPUS_DEFAULT_8
1876 select SYS_SUPPORTS_SMP
1879 This is a kernel model which is known a SMTC or lately has been
1880 marketesed into SMVP.
1881 is presenting the available TC's of the core as processors to Linux.
1882 On currently available 34K processors this means a Linux system will
1883 see up to 5 processors. The implementation of the SMTC kernel differs
1884 significantly from VSMP and cannot efficiently coexist in the same
1885 kernel binary so the choice between VSMP and SMTC is a compile time
1888 For further information see http://www.linux-mips.org/wiki/34K#SMTC
1896 bool "SMT (multithreading) scheduler support"
1897 depends on SYS_SUPPORTS_SCHED_SMT
1900 SMT scheduler support improves the CPU scheduler's decision making
1901 when dealing with MIPS MT enabled cores at a cost of slightly
1902 increased overhead in some places. If unsure say N here.
1904 config SYS_SUPPORTS_SCHED_SMT
1907 config SYS_SUPPORTS_MULTITHREADING
1910 config MIPS_MT_FPAFF
1911 bool "Dynamic FPU affinity for FP-intensive threads"
1913 depends on MIPS_MT_SMP || MIPS_MT_SMTC
1915 config MIPS_VPE_LOADER
1916 bool "VPE loader support."
1917 depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1918 select CPU_MIPSR2_IRQ_VI
1919 select CPU_MIPSR2_IRQ_EI
1922 Includes a loader for loading an elf relocatable object
1923 onto another VPE and running it.
1925 config MIPS_MT_SMTC_IM_BACKSTOP
1926 bool "Use per-TC register bits as backstop for inhibited IM bits"
1927 depends on MIPS_MT_SMTC
1930 To support multiple TC microthreads acting as "CPUs" within
1931 a VPE, VPE-wide interrupt mask bits must be specially manipulated
1932 during interrupt handling. To support legacy drivers and interrupt
1933 controller management code, SMTC has a "backstop" to track and
1934 if necessary restore the interrupt mask. This has some performance
1935 impact on interrupt service overhead.
1937 config MIPS_MT_SMTC_IRQAFF
1938 bool "Support IRQ affinity API"
1939 depends on MIPS_MT_SMTC
1942 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
1943 for SMTC Linux kernel. Requires platform support, of which
1944 an example can be found in the MIPS kernel i8259 and Malta
1945 platform code. Adds some overhead to interrupt dispatch, and
1946 should be used only if you know what you are doing.
1948 config MIPS_VPE_LOADER_TOM
1949 bool "Load VPE program into memory hidden from linux"
1950 depends on MIPS_VPE_LOADER
1953 The loader can use memory that is present but has been hidden from
1954 Linux using the kernel command line option "mem=xxMB". It's up to
1955 you to ensure the amount you put in the option and the space your
1956 program requires is less or equal to the amount physically present.
1958 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
1959 config MIPS_VPE_APSP_API
1960 bool "Enable support for AP/SP API (RTLX)"
1961 depends on MIPS_VPE_LOADER
1965 bool "MIPS CMP framework support"
1966 depends on SYS_SUPPORTS_MIPS_CMP
1969 select SYS_SUPPORTS_SMP
1970 select SYS_SUPPORTS_SCHED_SMT if SMP
1971 select WEAK_ORDERING
1974 This is a placeholder option for the GCMP work. It will need to
1975 be handled differently...
1977 config SB1_PASS_1_WORKAROUNDS
1979 depends on CPU_SB1_PASS_1
1982 config SB1_PASS_2_WORKAROUNDS
1984 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1987 config SB1_PASS_2_1_WORKAROUNDS
1989 depends on CPU_SB1 && CPU_SB1_PASS_2
1993 config 64BIT_PHYS_ADDR
1996 config ARCH_PHYS_ADDR_T_64BIT
1997 def_bool 64BIT_PHYS_ADDR
1999 config CPU_HAS_SMARTMIPS
2000 depends on SYS_SUPPORTS_SMARTMIPS
2001 bool "Support for the SmartMIPS ASE"
2003 SmartMIPS is a extension of the MIPS32 architecture aimed at
2004 increased security at both hardware and software level for
2005 smartcards. Enabling this option will allow proper use of the
2006 SmartMIPS instructions by Linux applications. However a kernel with
2007 this option will not work on a MIPS core without SmartMIPS core. If
2008 you don't know you probably don't have SmartMIPS and should say N
2011 config CPU_MICROMIPS
2012 depends on SYS_SUPPORTS_MICROMIPS
2013 bool "Build kernel using microMIPS ISA"
2015 When this option is enabled the kernel will be built using the
2025 # Vectored interrupt mode is an R2 feature
2027 config CPU_MIPSR2_IRQ_VI
2031 # Extended interrupt mode is an R2 feature
2033 config CPU_MIPSR2_IRQ_EI
2038 depends on !CPU_R3000
2044 config CPU_DADDI_WORKAROUNDS
2047 config CPU_R4000_WORKAROUNDS
2049 select CPU_R4400_WORKAROUNDS
2051 config CPU_R4400_WORKAROUNDS
2055 # - Highmem only makes sense for the 32-bit kernel.
2056 # - The current highmem code will only work properly on physically indexed
2057 # caches such as R3000, SB1, R7000 or those that look like they're virtually
2058 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
2059 # moment we protect the user and offer the highmem option only on machines
2060 # where it's known to be safe. This will not offer highmem on a few systems
2061 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2062 # indexed CPUs but we're playing safe.
2063 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2064 # know they might have memory configurations that could make use of highmem
2068 bool "High Memory Support"
2069 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
2071 config CPU_SUPPORTS_HIGHMEM
2074 config SYS_SUPPORTS_HIGHMEM
2077 config SYS_SUPPORTS_SMARTMIPS
2080 config SYS_SUPPORTS_MICROMIPS
2083 config ARCH_FLATMEM_ENABLE
2085 depends on !NUMA && !CPU_LOONGSON2
2087 config ARCH_DISCONTIGMEM_ENABLE
2089 default y if SGI_IP27
2091 Say Y to support efficient handling of discontiguous physical memory,
2092 for architectures which are either NUMA (Non-Uniform Memory Access)
2093 or have huge holes in the physical address space for other reasons.
2094 See <file:Documentation/vm/numa> for more.
2096 config ARCH_SPARSEMEM_ENABLE
2098 select SPARSEMEM_STATIC
2102 depends on SYS_SUPPORTS_NUMA
2104 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2105 Access). This option improves performance on systems with more
2106 than two nodes; on two node systems it is generally better to
2107 leave it disabled; on single node systems disable this option
2110 config SYS_SUPPORTS_NUMA
2116 depends on NEED_MULTIPLE_NODES
2118 config HW_PERF_EVENTS
2119 bool "Enable hardware performance counter support for perf events"
2120 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2123 Enable hardware performance counter support for perf events. If
2124 disabled, perf events will use software events only.
2129 bool "Multi-Processing support"
2130 depends on SYS_SUPPORTS_SMP
2132 This enables support for systems with more than one CPU. If you have
2133 a system with only one CPU, say N. If you have a system with more
2134 than one CPU, say Y.
2136 If you say N here, the kernel will run on uni- and multiprocessor
2137 machines, but will use only one CPU of a multiprocessor machine. If
2138 you say Y here, the kernel will run on many, but not all,
2139 uniprocessor machines. On a uniprocessor machine, the kernel
2140 will run faster if you say N here.
2142 People using multiprocessor machines who say Y here should also say
2143 Y to "Enhanced Real Time Clock Support", below.
2145 See also the SMP-HOWTO available at
2146 <http://www.tldp.org/docs.html#howto>.
2148 If you don't know what to do here, say N.
2153 config SYS_SUPPORTS_MIPS_CMP
2156 config SYS_SUPPORTS_SMP
2159 config NR_CPUS_DEFAULT_4
2162 config NR_CPUS_DEFAULT_8
2165 config NR_CPUS_DEFAULT_16
2168 config NR_CPUS_DEFAULT_32
2171 config NR_CPUS_DEFAULT_64
2175 int "Maximum number of CPUs (2-64)"
2178 default "4" if NR_CPUS_DEFAULT_4
2179 default "8" if NR_CPUS_DEFAULT_8
2180 default "16" if NR_CPUS_DEFAULT_16
2181 default "32" if NR_CPUS_DEFAULT_32
2182 default "64" if NR_CPUS_DEFAULT_64
2184 This allows you to specify the maximum number of CPUs which this
2185 kernel will support. The maximum supported value is 32 for 32-bit
2186 kernel and 64 for 64-bit kernels; the minimum value which makes
2187 sense is 1 for Qemu (useful only for kernel debugging purposes)
2188 and 2 for all others.
2190 This is purely to save memory - each supported CPU adds
2191 approximately eight kilobytes to the kernel image. For best
2192 performance should round up your number of processors to the next
2195 config MIPS_PERF_SHARED_TC_COUNTERS
2199 # Timer Interrupt Frequency Configuration
2203 prompt "Timer frequency"
2206 Allows the configuration of the timer frequency.
2209 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2212 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2215 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2218 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2221 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2224 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2227 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2231 config SYS_SUPPORTS_48HZ
2234 config SYS_SUPPORTS_100HZ
2237 config SYS_SUPPORTS_128HZ
2240 config SYS_SUPPORTS_250HZ
2243 config SYS_SUPPORTS_256HZ
2246 config SYS_SUPPORTS_1000HZ
2249 config SYS_SUPPORTS_1024HZ
2252 config SYS_SUPPORTS_ARBIT_HZ
2254 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2255 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2256 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2257 !SYS_SUPPORTS_1024HZ
2262 default 100 if HZ_100
2263 default 128 if HZ_128
2264 default 250 if HZ_250
2265 default 256 if HZ_256
2266 default 1000 if HZ_1000
2267 default 1024 if HZ_1024
2269 source "kernel/Kconfig.preempt"
2272 bool "Kexec system call"
2274 kexec is a system call that implements the ability to shutdown your
2275 current kernel, and to start another kernel. It is like a reboot
2276 but it is independent of the system firmware. And like a reboot
2277 you can start any kernel with it, not just Linux.
2279 The name comes from the similarity to the exec system call.
2281 It is an ongoing process to be certain the hardware in a machine
2282 is properly shutdown, so do not be surprised if this code does not
2283 initially work for you. As of this writing the exact hardware
2284 interface is strongly in flux, so no good recommendation can be
2288 bool "Kernel crash dumps"
2290 Generate crash dump after being started by kexec.
2291 This should be normally only set in special crash dump kernels
2292 which are loaded in the main kernel with kexec-tools into
2293 a specially reserved region and then later executed after
2294 a crash by kdump/kexec. The crash dump kernel must be compiled
2295 to a memory address not used by the main kernel or firmware using
2298 config PHYSICAL_START
2299 hex "Physical address where the kernel is loaded"
2300 default "0xffffffff84000000" if 64BIT
2301 default "0x84000000" if 32BIT
2302 depends on CRASH_DUMP
2304 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2305 If you plan to use kernel for capturing the crash dump change
2306 this value to start of the reserved region (the "X" value as
2307 specified in the "crashkernel=YM@XM" command line boot parameter
2308 passed to the panic-ed kernel).
2311 bool "Enable seccomp to safely compute untrusted bytecode"
2315 This kernel feature is useful for number crunching applications
2316 that may need to compute untrusted bytecode during their
2317 execution. By using pipes or other transports made available to
2318 the process as file descriptors supporting the read/write
2319 syscalls, it's possible to isolate those applications in
2320 their own address space using seccomp. Once seccomp is
2321 enabled via /proc/<pid>/seccomp, it cannot be disabled
2322 and the task is only allowed to execute a few safe syscalls
2323 defined by each seccomp mode.
2325 If unsure, say Y. Only embedded should say N here.
2330 select OF_EARLY_FLATTREE
2335 config LOCKDEP_SUPPORT
2339 config STACKTRACE_SUPPORT
2343 source "init/Kconfig"
2345 source "kernel/Kconfig.freezer"
2347 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2355 bool "Support for PCI controller"
2356 depends on HW_HAS_PCI
2358 select NO_GENERIC_PCI_IOPORT_MAP
2360 Find out whether you have a PCI motherboard. PCI is the name of a
2361 bus system, i.e. the way the CPU talks to the other stuff inside
2362 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2368 source "drivers/pci/Kconfig"
2370 source "drivers/pci/pcie/Kconfig"
2373 # ISA support is now enabled via select. Too many systems still have the one
2374 # or other ISA chip on the board that users don't know about so don't expect
2375 # users to choose the right thing ...
2382 depends on HW_HAS_EISA
2384 select GENERIC_ISA_DMA
2386 The Extended Industry Standard Architecture (EISA) bus was
2387 developed as an open alternative to the IBM MicroChannel bus.
2389 The EISA bus provided some of the features of the IBM MicroChannel
2390 bus while maintaining backward compatibility with cards made for
2391 the older ISA bus. The EISA bus saw limited use between 1988 and
2392 1995 when it was made obsolete by the PCI bus.
2394 Say Y here if you are building a kernel for an EISA-based machine.
2398 source "drivers/eisa/Kconfig"
2401 bool "TURBOchannel support"
2402 depends on MACH_DECSTATION
2404 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2405 processors. TURBOchannel programming specifications are available
2407 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2409 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2410 Linux driver support status is documented at:
2411 <http://www.linux-mips.org/wiki/DECstation>
2421 select MIPS_EXTERNAL_TIMER
2429 source "drivers/pcmcia/Kconfig"
2431 source "drivers/pci/hotplug/Kconfig"
2434 tristate "RapidIO support"
2438 If you say Y here, the kernel will include drivers and
2439 infrastructure code to support RapidIO interconnect devices.
2441 source "drivers/rapidio/Kconfig"
2445 menu "Executable file formats"
2447 source "fs/Kconfig.binfmt"
2452 config MIPS32_COMPAT
2453 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2456 Select this option if you want Linux/MIPS 32-bit binary
2457 compatibility. Since all software available for Linux/MIPS is
2458 currently 32-bit you should say Y here.
2462 depends on MIPS32_COMPAT
2463 select ARCH_WANT_OLD_COMPAT_IPC
2466 config SYSVIPC_COMPAT
2468 depends on COMPAT && SYSVIPC
2472 bool "Kernel support for o32 binaries"
2473 depends on MIPS32_COMPAT
2475 Select this option if you want to run o32 binaries. These are pure
2476 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
2477 existing binaries are in this format.
2482 bool "Kernel support for n32 binaries"
2483 depends on MIPS32_COMPAT
2485 Select this option if you want to run n32 binaries. These are
2486 64-bit binaries using 32-bit quantities for addressing and certain
2487 data that would normally be 64-bit. They are used in special
2494 default y if MIPS32_O32 || MIPS32_N32
2498 menu "Power management options"
2500 config ARCH_HIBERNATION_POSSIBLE
2502 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2504 config ARCH_SUSPEND_POSSIBLE
2506 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2508 source "kernel/power/Kconfig"
2512 config MIPS_EXTERNAL_TIMER
2515 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2516 menu "CPU Power Management"
2517 source "drivers/cpufreq/Kconfig"
2521 source "net/Kconfig"
2523 source "drivers/Kconfig"
2525 source "drivers/firmware/Kconfig"
2529 source "arch/mips/Kconfig.debug"
2531 source "security/Kconfig"
2533 source "crypto/Kconfig"
2535 source "lib/Kconfig"
2537 source "arch/mips/kvm/Kconfig"