config MIPS bool default y select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO select HAVE_CONTEXT_TRACKING select HAVE_GENERIC_DMA_COHERENT select HAVE_IDE select HAVE_OPROFILE select HAVE_PERF_EVENTS select PERF_USE_VMALLOC select HAVE_ARCH_KGDB select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_BPF_JIT if !CPU_MICROMIPS select ARCH_HAVE_CUSTOM_GPIO_H select HAVE_FUNCTION_TRACER select HAVE_DYNAMIC_FTRACE select HAVE_FTRACE_MCOUNT_RECORD select HAVE_C_RECORDMCOUNT select HAVE_FUNCTION_GRAPH_TRACER select HAVE_KPROBES select HAVE_KRETPROBES select HAVE_DEBUG_KMEMLEAK select HAVE_SYSCALL_TRACEPOINTS select ARCH_BINFMT_ELF_RANDOMIZE_PIE select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT select RTC_LIB if !MACH_LOONGSON select GENERIC_ATOMIC64 if !64BIT select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_DMA_ATTRS select HAVE_DMA_CONTIGUOUS select HAVE_DMA_API_DEBUG select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP select HAVE_ARCH_JUMP_LABEL select ARCH_WANT_IPC_PARSE_VERSION select IRQ_FORCED_THREADING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP select ARCH_DISCARD_MEMBLOCK select GENERIC_SMP_IDLE_THREAD select BUILDTIME_EXTABLE_SORT select GENERIC_CLOCKEVENTS select GENERIC_CMOS_UPDATE select HAVE_MOD_ARCH_SPECIFIC select VIRT_TO_BUS select MODULES_USE_ELF_REL if MODULES select MODULES_USE_ELF_RELA if MODULES && 64BIT select CLONE_BACKWARDS select HAVE_DEBUG_STACKOVERFLOW select HAVE_CC_STACKPROTECTOR select CPU_PM if CPU_IDLE select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_BINFMT_ELF_STATE select SYSCTL_EXCEPTION_TRACE menu "Machine selection" choice prompt "System type" default SGI_IP22 config MIPS_ALCHEMY bool "Alchemy processor based machines" select ARCH_PHYS_ADDR_T_64BIT select CEVT_R4K select CSRC_R4K select IRQ_CPU select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_APM_EMULATION select ARCH_REQUIRE_GPIOLIB select SYS_SUPPORTS_ZBOOT select COMMON_CLK config AR7 bool "Texas Instruments AR7" select BOOT_ELF32 select DMA_NONCOHERENT select CEVT_R4K select CSRC_R4K select IRQ_CPU select NO_EXCEPT_FILL select SWAP_IO_SPACE select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MIPS16 select SYS_SUPPORTS_ZBOOT_UART16550 select ARCH_REQUIRE_GPIOLIB select VLYNQ select HAVE_CLK help Support for the Texas Instruments AR7 System-on-a-Chip family: TNETD7100, 7200 and 7300. config ATH25 bool "Atheros AR231x/AR531x SoC support" select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select IRQ_CPU select IRQ_DOMAIN select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_32BIT_KERNEL select SYS_HAS_EARLY_PRINTK help Support for Atheros AR231x and Atheros AR531x based boards config ATH79 bool "Atheros AR71XX/AR724X/AR913X based boards" select ARCH_REQUIRE_GPIOLIB select BOOT_RAW select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select HAVE_CLK select CLKDEV_LOOKUP select IRQ_CPU select MIPS_MACHINE select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_MIPS16 help Support for the Atheros AR71XX/AR724X/AR913X SoCs. config BCM3384 bool "Broadcom BCM3384 based boards" select BOOT_RAW select NO_EXCEPT_FILL select USE_OF select CEVT_R4K select CSRC_R4K select SYNC_R4K select COMMON_CLK select DMA_NONCOHERENT select IRQ_CPU select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_HAS_CPU_BMIPS5000 select SWAP_IO_SPACE select USB_EHCI_BIG_ENDIAN_DESC select USB_EHCI_BIG_ENDIAN_MMIO select USB_OHCI_BIG_ENDIAN_DESC select USB_OHCI_BIG_ENDIAN_MMIO help Support for BCM3384 based boards. BCM3384/BCM33843 is a cable modem chipset with a Linux application processor that is often used to provide Samba services, a CUPS print server, and/or advanced routing features. config BCM47XX bool "Broadcom BCM47XX based boards" select ARCH_WANT_OPTIONAL_GPIOLIB select BOOT_RAW select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select HW_HAS_PCI select IRQ_CPU select SYS_HAS_CPU_MIPS32_R1 select NO_EXCEPT_FILL select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MIPS16 select SYS_HAS_EARLY_PRINTK select USE_GENERIC_EARLY_PRINTK_8250 select GPIOLIB select LEDS_GPIO_REGISTER help Support for BCM47XX based boards config BCM63XX bool "Broadcom BCM63XX based boards" select BOOT_RAW select CEVT_R4K select CSRC_R4K select SYNC_R4K select DMA_NONCOHERENT select IRQ_CPU select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_HAS_EARLY_PRINTK select SWAP_IO_SPACE select ARCH_REQUIRE_GPIOLIB select HAVE_CLK select MIPS_L1_CACHE_SHIFT_4 help Support for BCM63XX based boards config MIPS_COBALT bool "Cobalt Server" select CEVT_R4K select CSRC_R4K select CEVT_GT641XX select DMA_NONCOHERENT select HW_HAS_PCI select I8253 select I8259 select IRQ_CPU select IRQ_GT641XX select PCI_GT64XXX_PCI0 select PCI select SYS_HAS_CPU_NEVADA select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select USE_GENERIC_EARLY_PRINTK_8250 config MACH_DECSTATION bool "DECstations" select BOOT_ELF32 select CEVT_DS1287 select CEVT_R4K if CPU_R4X00 select CSRC_IOASIC select CSRC_R4K if CPU_R4X00 select CPU_DADDI_WORKAROUNDS if 64BIT select CPU_R4000_WORKAROUNDS if 64BIT select CPU_R4400_WORKAROUNDS if 64BIT select DMA_NONCOHERENT select NO_IOPORT_MAP select IRQ_CPU select SYS_HAS_CPU_R3000 select SYS_HAS_CPU_R4X00 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_128HZ select SYS_SUPPORTS_256HZ select SYS_SUPPORTS_1024HZ select MIPS_L1_CACHE_SHIFT_4 help This enables support for DEC's MIPS based workstations. For details see the Linux/MIPS FAQ on and the DECstation porting pages on . If you have one of the following DECstation Models you definitely want to choose R4xx0 for the CPU Type: DECstation 5000/50 DECstation 5000/150 DECstation 5000/260 DECsystem 5900/260 otherwise choose R3000. config MACH_JAZZ bool "Jazz family of machines" select FW_ARC select FW_ARC32 select ARCH_MAY_HAVE_PC_FDC select CEVT_R4K select CSRC_R4K select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN select GENERIC_ISA_DMA select HAVE_PCSPKR_PLATFORM select IRQ_CPU select I8253 select I8259 select ISA select SYS_HAS_CPU_R4X00 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_100HZ help This a family of machines based on the MIPS R4030 chipset which was used by several vendors to build RISC/os and Windows NT workstations. Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and Olivetti M700-10 workstations. config MACH_JZ4740 bool "Ingenic JZ4740 based machines" select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_ZBOOT_UART16550 select DMA_NONCOHERENT select IRQ_CPU select ARCH_REQUIRE_GPIOLIB select SYS_HAS_EARLY_PRINTK select HAVE_CLK select GENERIC_IRQ_CHIP config LANTIQ bool "Lantiq based platforms" select DMA_NONCOHERENT select IRQ_CPU select CEVT_R4K select CSRC_R4K select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_MIPS16 select SYS_SUPPORTS_MULTITHREADING select SYS_HAS_EARLY_PRINTK select ARCH_REQUIRE_GPIOLIB select SWAP_IO_SPACE select BOOT_RAW select HAVE_MACH_CLKDEV select CLKDEV_LOOKUP select USE_OF select PINCTRL select PINCTRL_LANTIQ select ARCH_HAS_RESET_CONTROLLER select RESET_CONTROLLER config LASAT bool "LASAT Networks platforms" select CEVT_R4K select CRC32 select CSRC_R4K select DMA_NONCOHERENT select SYS_HAS_EARLY_PRINTK select HW_HAS_PCI select IRQ_CPU select PCI_GT64XXX_PCI0 select MIPS_NILE4 select R5000_CPU_SCACHE select SYS_HAS_CPU_R5000 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL if BROKEN select SYS_SUPPORTS_LITTLE_ENDIAN config MACH_LOONGSON bool "Loongson family of machines" select SYS_SUPPORTS_ZBOOT help This enables the support of Loongson family of machines. Loongson is a family of general-purpose MIPS-compatible CPUs. developed at Institute of Computing Technology (ICT), Chinese Academy of Sciences (CAS) in the People's Republic of China. The chief architect is Professor Weiwu Hu. config MACH_LOONGSON1 bool "Loongson 1 family of machines" select SYS_SUPPORTS_ZBOOT help This enables support for the Loongson 1 based machines. Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by the ICT (Institute of Computing Technology) and the Chinese Academy of Sciences. config MACH_PISTACHIO bool "IMG Pistachio SoC based boards" select ARCH_REQUIRE_GPIOLIB select BOOT_ELF32 select BOOT_RAW select CEVT_R4K select CLKSRC_MIPS_GIC select COMMON_CLK select CSRC_R4K select DMA_MAYBE_COHERENT select IRQ_CPU select LIBFDT select MFD_SYSCON select MIPS_CPU_SCACHE select MIPS_GIC select PINCTRL select REGULATOR select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MIPS_CPS select SYS_SUPPORTS_MULTITHREADING select SYS_SUPPORTS_ZBOOT select USE_OF help This enables support for the IMG Pistachio SoC platform. config MIPS_MALTA bool "MIPS Malta board" select ARCH_MAY_HAVE_PC_FDC select BOOT_ELF32 select BOOT_RAW select CEVT_R4K select CSRC_R4K select CLKSRC_MIPS_GIC select DMA_MAYBE_COHERENT select GENERIC_ISA_DMA select HAVE_PCSPKR_PLATFORM select IRQ_CPU select MIPS_GIC select HW_HAS_PCI select I8253 select I8259 select MIPS_BONITO64 select MIPS_CPU_SCACHE select MIPS_L1_CACHE_SHIFT_6 select PCI_GT64XXX_PCI0 select MIPS_MSC select SWAP_IO_SPACE select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_CPU_MIPS32_R3_5 select SYS_HAS_CPU_MIPS32_R6 select SYS_HAS_CPU_MIPS64_R1 select SYS_HAS_CPU_MIPS64_R2 select SYS_HAS_CPU_MIPS64_R6 select SYS_HAS_CPU_NEVADA select SYS_HAS_CPU_RM7000 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MICROMIPS select SYS_SUPPORTS_MIPS_CMP select SYS_SUPPORTS_MIPS_CPS select SYS_SUPPORTS_MIPS16 select SYS_SUPPORTS_MULTITHREADING select SYS_SUPPORTS_SMARTMIPS select SYS_SUPPORTS_ZBOOT help This enables support for the MIPS Technologies Malta evaluation board. config MIPS_SEAD3 bool "MIPS SEAD3 board" select BOOT_ELF32 select BOOT_RAW select BUILTIN_DTB select CEVT_R4K select CSRC_R4K select CLKSRC_MIPS_GIC select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI select DMA_NONCOHERENT select IRQ_CPU select MIPS_GIC select LIBFDT select MIPS_MSC select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_CPU_MIPS64_R1 select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_SMARTMIPS select SYS_SUPPORTS_MICROMIPS select SYS_SUPPORTS_MIPS16 select USB_EHCI_BIG_ENDIAN_DESC select USB_EHCI_BIG_ENDIAN_MMIO select USE_OF help This enables support for the MIPS Technologies SEAD3 evaluation board. config NEC_MARKEINS bool "NEC EMMA2RH Mark-eins board" select SOC_EMMA2RH select HW_HAS_PCI help This enables support for the NEC Electronics Mark-eins boards. config MACH_VR41XX bool "NEC VR4100 series based machines" select CEVT_R4K select CSRC_R4K select SYS_HAS_CPU_VR41XX select SYS_SUPPORTS_MIPS16 select ARCH_REQUIRE_GPIOLIB config NXP_STB220 bool "NXP STB220 board" select SOC_PNX833X help Support for NXP Semiconductors STB220 Development Board. config NXP_STB225 bool "NXP 225 board" select SOC_PNX833X select SOC_PNX8335 help Support for NXP Semiconductors STB225 Development Board. config PMC_MSP bool "PMC-Sierra MSP chipsets" select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select SWAP_IO_SPACE select NO_EXCEPT_FILL select BOOT_RAW select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_MIPS16 select IRQ_CPU select SERIAL_8250 select SERIAL_8250_CONSOLE select USB_EHCI_BIG_ENDIAN_MMIO select USB_EHCI_BIG_ENDIAN_DESC help This adds support for the PMC-Sierra family of Multi-Service Processor System-On-A-Chips. These parts include a number of integrated peripherals, interfaces and DSPs in addition to a variety of MIPS cores. config RALINK bool "Ralink based machines" select CEVT_R4K select CSRC_R4K select BOOT_RAW select DMA_NONCOHERENT select IRQ_CPU select USE_OF select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MIPS16 select SYS_HAS_EARLY_PRINTK select HAVE_MACH_CLKDEV select CLKDEV_LOOKUP select ARCH_HAS_RESET_CONTROLLER select RESET_CONTROLLER config SGI_IP22 bool "SGI IP22 (Indy/Indigo2)" select FW_ARC select FW_ARC32 select BOOT_ELF32 select CEVT_R4K select CSRC_R4K select DEFAULT_SGI_PARTITION select DMA_NONCOHERENT select HW_HAS_EISA select I8253 select I8259 select IP22_CPU_SCACHE select IRQ_CPU select GENERIC_ISA_DMA_SUPPORT_BROKEN select SGI_HAS_I8042 select SGI_HAS_INDYDOG select SGI_HAS_HAL2 select SGI_HAS_SEEQ select SGI_HAS_WD93 select SGI_HAS_ZILOG select SWAP_IO_SPACE select SYS_HAS_CPU_R4X00 select SYS_HAS_CPU_R5000 # # Disable EARLY_PRINTK for now since it leads to overwritten prom # memory during early boot on some machines. # # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com # for a more details discussion # # select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select MIPS_L1_CACHE_SHIFT_7 help This are the SGI Indy, Challenge S and Indigo2, as well as certain OEM variants like the Tandem CMN B006S. To compile a Linux kernel that runs on these, say Y here. config SGI_IP27 bool "SGI IP27 (Origin200/2000)" select FW_ARC select FW_ARC64 select BOOT_ELF64 select DEFAULT_SGI_PARTITION select DMA_COHERENT select SYS_HAS_EARLY_PRINTK select HW_HAS_PCI select NR_CPUS_DEFAULT_64 select SYS_HAS_CPU_R10000 select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_NUMA select SYS_SUPPORTS_SMP select MIPS_L1_CACHE_SHIFT_7 help This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics workstations. To compile a Linux kernel that runs on these, say Y here. config SGI_IP28 bool "SGI IP28 (Indigo2 R10k)" select FW_ARC select FW_ARC64 select BOOT_ELF64 select CEVT_R4K select CSRC_R4K select DEFAULT_SGI_PARTITION select DMA_NONCOHERENT select GENERIC_ISA_DMA_SUPPORT_BROKEN select IRQ_CPU select HW_HAS_EISA select I8253 select I8259 select SGI_HAS_I8042 select SGI_HAS_INDYDOG select SGI_HAS_HAL2 select SGI_HAS_SEEQ select SGI_HAS_WD93 select SGI_HAS_ZILOG select SWAP_IO_SPACE select SYS_HAS_CPU_R10000 # # Disable EARLY_PRINTK for now since it leads to overwritten prom # memory during early boot on some machines. # # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com # for a more details discussion # # select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select MIPS_L1_CACHE_SHIFT_7 help This is the SGI Indigo2 with R10000 processor. To compile a Linux kernel that runs on these, say Y here. config SGI_IP32 bool "SGI IP32 (O2)" select FW_ARC select FW_ARC32 select BOOT_ELF32 select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select HW_HAS_PCI select IRQ_CPU select R5000_CPU_SCACHE select RM7000_CPU_SCACHE select SYS_HAS_CPU_R5000 select SYS_HAS_CPU_R10000 if BROKEN select SYS_HAS_CPU_RM7000 select SYS_HAS_CPU_NEVADA select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN help If you want this kernel to run on SGI O2 workstation, say Y here. config SIBYTE_CRHINE bool "Sibyte BCM91120C-CRhine" select BOOT_ELF32 select DMA_COHERENT select SIBYTE_BCM1120 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_CARMEL bool "Sibyte BCM91120x-Carmel" select BOOT_ELF32 select DMA_COHERENT select SIBYTE_BCM1120 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_CRHONE bool "Sibyte BCM91125C-CRhone" select BOOT_ELF32 select DMA_COHERENT select SIBYTE_BCM1125 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_RHONE bool "Sibyte BCM91125E-Rhone" select BOOT_ELF32 select DMA_COHERENT select SIBYTE_BCM1125H select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_SWARM bool "Sibyte BCM91250A-SWARM" select BOOT_ELF32 select DMA_COHERENT select HAVE_PATA_PLATFORM select SIBYTE_SB1250 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN select ZONE_DMA32 if 64BIT config SIBYTE_LITTLESUR bool "Sibyte BCM91250C2-LittleSur" select BOOT_ELF32 select DMA_COHERENT select HAVE_PATA_PLATFORM select SIBYTE_SB1250 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_SENTOSA bool "Sibyte BCM91250E-Sentosa" select BOOT_ELF32 select DMA_COHERENT select SIBYTE_SB1250 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN config SIBYTE_BIGSUR bool "Sibyte BCM91480B-BigSur" select BOOT_ELF32 select DMA_COHERENT select NR_CPUS_DEFAULT_4 select SIBYTE_BCM1x80 select SWAP_IO_SPACE select SYS_HAS_CPU_SB1 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN select ZONE_DMA32 if 64BIT config SNI_RM bool "SNI RM200/300/400" select FW_ARC if CPU_LITTLE_ENDIAN select FW_ARC32 if CPU_LITTLE_ENDIAN select FW_SNIPROM if CPU_BIG_ENDIAN select ARCH_MAY_HAVE_PC_FDC select BOOT_ELF32 select CEVT_R4K select CSRC_R4K select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN select DMA_NONCOHERENT select GENERIC_ISA_DMA select HAVE_PCSPKR_PLATFORM select HW_HAS_EISA select HW_HAS_PCI select IRQ_CPU select I8253 select I8259 select ISA select SWAP_IO_SPACE if CPU_BIG_ENDIAN select SYS_HAS_CPU_R4X00 select SYS_HAS_CPU_R5000 select SYS_HAS_CPU_R10000 select R5000_CPU_SCACHE select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN help The SNI RM200/300/400 are MIPS-based machines manufactured by Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid Technology and now in turn merged with Fujitsu. Say Y here to support this machine type. config MACH_TX39XX bool "Toshiba TX39 series based machines" config MACH_TX49XX bool "Toshiba TX49 series based machines" config MIKROTIK_RB532 bool "Mikrotik RB532 boards" select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select HW_HAS_PCI select IRQ_CPU select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SWAP_IO_SPACE select BOOT_RAW select ARCH_REQUIRE_GPIOLIB select MIPS_L1_CACHE_SHIFT_4 help Support the Mikrotik(tm) RouterBoard 532 series, based on the IDT RC32434 SoC. config CAVIUM_OCTEON_SOC bool "Cavium Networks Octeon SoC based boards" select CEVT_R4K select ARCH_PHYS_ADDR_T_64BIT select DMA_COHERENT select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select EDAC_SUPPORT select SYS_SUPPORTS_HOTPLUG_CPU select SYS_HAS_EARLY_PRINTK select SYS_HAS_CPU_CAVIUM_OCTEON select SWAP_IO_SPACE select HW_HAS_PCI select ZONE_DMA32 select HOLES_IN_ZONE select ARCH_REQUIRE_GPIOLIB select LIBFDT select USE_OF select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_SMP select NR_CPUS_DEFAULT_16 select BUILTIN_DTB help This option supports all of the Octeon reference boards from Cavium Networks. It builds a kernel that dynamically determines the Octeon CPU type and supports all known board reference implementations. Some of the supported boards are: EBT3000 EBH3000 EBH3100 Thunder Kodama Hikari Say Y here for most Octeon reference boards. config NLM_XLR_BOARD bool "Netlogic XLR/XLS based systems" select BOOT_ELF32 select NLM_COMMON select SYS_HAS_CPU_XLR select SYS_SUPPORTS_SMP select HW_HAS_PCI select SWAP_IO_SPACE select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select ARCH_PHYS_ADDR_T_64BIT select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_HIGHMEM select DMA_COHERENT select NR_CPUS_DEFAULT_32 select CEVT_R4K select CSRC_R4K select IRQ_CPU select ZONE_DMA32 if 64BIT select SYNC_R4K select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_ZBOOT select SYS_SUPPORTS_ZBOOT_UART16550 help Support for systems based on Netlogic XLR and XLS processors. Say Y here if you have a XLR or XLS based board. config NLM_XLP_BOARD bool "Netlogic XLP based systems" select BOOT_ELF32 select NLM_COMMON select SYS_HAS_CPU_XLP select SYS_SUPPORTS_SMP select HW_HAS_PCI select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select ARCH_PHYS_ADDR_T_64BIT select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_HIGHMEM select DMA_COHERENT select NR_CPUS_DEFAULT_32 select CEVT_R4K select CSRC_R4K select IRQ_CPU select ZONE_DMA32 if 64BIT select SYNC_R4K select SYS_HAS_EARLY_PRINTK select USE_OF select SYS_SUPPORTS_ZBOOT select SYS_SUPPORTS_ZBOOT_UART16550 help This board is based on Netlogic XLP Processor. Say Y here if you have a XLP based board. config MIPS_PARAVIRT bool "Para-Virtualized guest system" select CEVT_R4K select CSRC_R4K select DMA_COHERENT select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_SMP select NR_CPUS_DEFAULT_4 select SYS_HAS_EARLY_PRINTK select SYS_HAS_CPU_MIPS32_R2 select SYS_HAS_CPU_MIPS64_R2 select SYS_HAS_CPU_CAVIUM_OCTEON select HW_HAS_PCI select SWAP_IO_SPACE help This option supports guest running under ???? endchoice source "arch/mips/alchemy/Kconfig" source "arch/mips/ath25/Kconfig" source "arch/mips/ath79/Kconfig" source "arch/mips/bcm47xx/Kconfig" source "arch/mips/bcm63xx/Kconfig" source "arch/mips/jazz/Kconfig" source "arch/mips/jz4740/Kconfig" source "arch/mips/lantiq/Kconfig" source "arch/mips/lasat/Kconfig" source "arch/mips/pmcs-msp71xx/Kconfig" source "arch/mips/ralink/Kconfig" source "arch/mips/sgi-ip27/Kconfig" source "arch/mips/sibyte/Kconfig" source "arch/mips/txx9/Kconfig" source "arch/mips/vr41xx/Kconfig" source "arch/mips/cavium-octeon/Kconfig" source "arch/mips/loongson/Kconfig" source "arch/mips/loongson1/Kconfig" source "arch/mips/netlogic/Kconfig" source "arch/mips/paravirt/Kconfig" endmenu config RWSEM_GENERIC_SPINLOCK bool default y config RWSEM_XCHGADD_ALGORITHM bool config ARCH_HAS_ILOG2_U32 bool default n config ARCH_HAS_ILOG2_U64 bool default n config GENERIC_HWEIGHT bool default y config GENERIC_CALIBRATE_DELAY bool default y config SCHED_OMIT_FRAME_POINTER bool default y # # Select some configuration options automatically based on user selections. # config FW_ARC bool config ARCH_MAY_HAVE_PC_FDC bool config BOOT_RAW bool config CEVT_BCM1480 bool config CEVT_DS1287 bool config CEVT_GT641XX bool config CEVT_R4K bool config CEVT_SB1250 bool config CEVT_TXX9 bool config CSRC_BCM1480 bool config CSRC_IOASIC bool config CSRC_R4K bool config CSRC_SB1250 bool config GPIO_TXX9 select ARCH_REQUIRE_GPIOLIB bool config FW_CFE bool config ARCH_DMA_ADDR_T_64BIT def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT config DMA_MAYBE_COHERENT select DMA_NONCOHERENT bool config DMA_COHERENT bool config DMA_NONCOHERENT bool select NEED_DMA_MAP_STATE config NEED_DMA_MAP_STATE bool config SYS_HAS_EARLY_PRINTK bool config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU help Say Y here to allow turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. (Note: power management support will enable this option automatically on SMP systems. ) Say N if you want to disable CPU hotplug. config SYS_SUPPORTS_HOTPLUG_CPU bool config I8259 bool select IRQ_DOMAIN config MIPS_BONITO64 bool config MIPS_MSC bool config MIPS_NILE4 bool config SYNC_R4K bool config MIPS_MACHINE def_bool n config NO_IOPORT_MAP def_bool n config GENERIC_CSUM bool config GENERIC_ISA_DMA bool select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n select ISA_DMA_API config GENERIC_ISA_DMA_SUPPORT_BROKEN bool select GENERIC_ISA_DMA config ISA_DMA_API bool config HOLES_IN_ZONE bool # # Endianness selection. Sufficiently obscure so many users don't know what to # answer,so we try hard to limit the available choices. Also the use of a # choice statement should be more obvious to the user. # choice prompt "Endianness selection" help Some MIPS machines can be configured for either little or big endian byte order. These modes require different kernels and a different Linux distribution. In general there is one preferred byteorder for a particular system but some systems are just as commonly used in the one or the other endianness. config CPU_BIG_ENDIAN bool "Big endian" depends on SYS_SUPPORTS_BIG_ENDIAN config CPU_LITTLE_ENDIAN bool "Little endian" depends on SYS_SUPPORTS_LITTLE_ENDIAN endchoice config EXPORT_UASM bool config SYS_SUPPORTS_APM_EMULATION bool config SYS_SUPPORTS_BIG_ENDIAN bool config SYS_SUPPORTS_LITTLE_ENDIAN bool config SYS_SUPPORTS_HUGETLBFS bool depends on CPU_SUPPORTS_HUGEPAGES && 64BIT default y config MIPS_HUGE_TLB_SUPPORT def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE config IRQ_CPU bool select IRQ_DOMAIN config IRQ_CPU_RM7K bool config IRQ_MSP_SLP bool config IRQ_MSP_CIC bool config IRQ_TXX9 bool config IRQ_GT641XX bool config PCI_GT64XXX_PCI0 bool config NO_EXCEPT_FILL bool config SOC_EMMA2RH bool select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT select IRQ_CPU select SWAP_IO_SPACE select SYS_HAS_CPU_R5500 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN config SOC_PNX833X bool select CEVT_R4K select CSRC_R4K select IRQ_CPU select DMA_NONCOHERENT select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_MIPS16 select CPU_MIPSR2_IRQ_VI config SOC_PNX8335 bool select SOC_PNX833X config MIPS_SPRAM bool config SWAP_IO_SPACE bool config SGI_HAS_INDYDOG bool config SGI_HAS_HAL2 bool config SGI_HAS_SEEQ bool config SGI_HAS_WD93 bool config SGI_HAS_ZILOG bool config SGI_HAS_I8042 bool config DEFAULT_SGI_PARTITION bool config FW_ARC32 bool config FW_SNIPROM bool config BOOT_ELF32 bool config MIPS_L1_CACHE_SHIFT_4 bool config MIPS_L1_CACHE_SHIFT_5 bool config MIPS_L1_CACHE_SHIFT_6 bool config MIPS_L1_CACHE_SHIFT_7 bool config MIPS_L1_CACHE_SHIFT int default "4" if MIPS_L1_CACHE_SHIFT_4 default "5" if MIPS_L1_CACHE_SHIFT_5 default "6" if MIPS_L1_CACHE_SHIFT_6 default "7" if MIPS_L1_CACHE_SHIFT_7 default "5" config HAVE_STD_PC_SERIAL_PORT bool config ARC_CONSOLE bool "ARC console support" depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) config ARC_MEMORY bool depends on MACH_JAZZ || SNI_RM || SGI_IP32 default y config ARC_PROMLIB bool depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 default y config FW_ARC64 bool config BOOT_ELF64 bool menu "CPU selection" choice prompt "CPU type" default CPU_R4X00 config CPU_LOONGSON3 bool "Loongson 3 CPU" depends on SYS_HAS_CPU_LOONGSON3 select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC help The Loongson 3 processor implements the MIPS64R2 instruction set with many extensions. config CPU_LOONGSON2E bool "Loongson 2E" depends on SYS_HAS_CPU_LOONGSON2E select CPU_LOONGSON2 help The Loongson 2E processor implements the MIPS III instruction set with many extensions. It has an internal FPGA northbridge, which is compatible to bonito64. config CPU_LOONGSON2F bool "Loongson 2F" depends on SYS_HAS_CPU_LOONGSON2F select CPU_LOONGSON2 select ARCH_REQUIRE_GPIOLIB help The Loongson 2F processor implements the MIPS III instruction set with many extensions. Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller have a similar programming interface with FPGA northbridge used in Loongson2E. config CPU_LOONGSON1B bool "Loongson 1B" depends on SYS_HAS_CPU_LOONGSON1B select CPU_LOONGSON1 help The Loongson 1B is a 32-bit SoC, which implements the MIPS32 release 2 instruction set. config CPU_MIPS32_R1 bool "MIPS32 Release 1" depends on SYS_HAS_CPU_MIPS32_R1 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM help Choose this option to build a kernel for release 1 or later of the MIPS32 architecture. Most modern embedded systems with a 32-bit MIPS processor are based on a MIPS32 processor. If you know the specific type of processor in your system, choose those that one otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. Release 2 of the MIPS32 architecture is available since several years so chances are you even have a MIPS32 Release 2 processor in which case you should choose CPU_MIPS32_R2 instead for better performance. config CPU_MIPS32_R2 bool "MIPS32 Release 2" depends on SYS_HAS_CPU_MIPS32_R2 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA select HAVE_KVM help Choose this option to build a kernel for release 2 or later of the MIPS32 architecture. Most modern embedded systems with a 32-bit MIPS processor are based on a MIPS32 processor. If you know the specific type of processor in your system, choose those that one otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. config CPU_MIPS32_R6 bool "MIPS32 Release 6 (EXPERIMENTAL)" depends on SYS_HAS_CPU_MIPS32_R6 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA select GENERIC_CSUM select HAVE_KVM select MIPS_O32_FP64_SUPPORT help Choose this option to build a kernel for release 6 or later of the MIPS32 architecture. New MIPS processors, starting with the Warrior family, are based on a MIPS32r6 processor. If you own an older processor, you probably need to select MIPS32r1 or MIPS32r2 instead. config CPU_MIPS64_R1 bool "MIPS64 Release 1" depends on SYS_HAS_CPU_MIPS64_R1 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES help Choose this option to build a kernel for release 1 or later of the MIPS64 architecture. Many modern embedded systems with a 64-bit MIPS processor are based on a MIPS64 processor. If you know the specific type of processor in your system, choose those that one otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. Release 2 of the MIPS64 architecture is available since several years so chances are you even have a MIPS64 Release 2 processor in which case you should choose CPU_MIPS64_R2 instead for better performance. config CPU_MIPS64_R2 bool "MIPS64 Release 2" depends on SYS_HAS_CPU_MIPS64_R2 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select CPU_SUPPORTS_MSA help Choose this option to build a kernel for release 2 or later of the MIPS64 architecture. Many modern embedded systems with a 64-bit MIPS processor are based on a MIPS64 processor. If you know the specific type of processor in your system, choose those that one otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. config CPU_MIPS64_R6 bool "MIPS64 Release 6 (EXPERIMENTAL)" depends on SYS_HAS_CPU_MIPS64_R6 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_MSA select GENERIC_CSUM help Choose this option to build a kernel for release 6 or later of the MIPS64 architecture. New MIPS processors, starting with the Warrior family, are based on a MIPS64r6 processor. If you own an older processor, you probably need to select MIPS64r1 or MIPS64r2 instead. config CPU_R3000 bool "R3000" depends on SYS_HAS_CPU_R3000 select CPU_HAS_WB select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM help Please make sure to pick the right CPU type. Linux/MIPS is not designed to be generic, i.e. Kernels compiled for R3000 CPUs will *not* work on R4000 machines and vice versa. However, since most of the supported machines have an R4000 (or similar) CPU, R4x00 might be a safe bet. If the resulting kernel does not work, try to recompile with R3000. config CPU_TX39XX bool "R39XX" depends on SYS_HAS_CPU_TX39XX select CPU_SUPPORTS_32BIT_KERNEL config CPU_VR41XX bool "R41xx" depends on SYS_HAS_CPU_VR41XX select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL help The options selects support for the NEC VR4100 series of processors. Only choose this option if you have one of these processors as a kernel built with this option will not run on any other type of processor or vice versa. config CPU_R4300 bool "R4300" depends on SYS_HAS_CPU_R4300 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL help MIPS Technologies R4300-series processors. config CPU_R4X00 bool "R4x00" depends on SYS_HAS_CPU_R4X00 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES help MIPS Technologies R4000-series processors other than 4300, including the R4000, R4400, R4600, and 4700. config CPU_TX49XX bool "R49XX" depends on SYS_HAS_CPU_TX49XX select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES config CPU_R5000 bool "R5000" depends on SYS_HAS_CPU_R5000 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES help MIPS Technologies R5000-series processors other than the Nevada. config CPU_R5432 bool "R5432" depends on SYS_HAS_CPU_R5432 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES config CPU_R5500 bool "R5500" depends on SYS_HAS_CPU_R5500 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES help NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV instruction set. config CPU_R6000 bool "R6000" depends on SYS_HAS_CPU_R6000 select CPU_SUPPORTS_32BIT_KERNEL help MIPS Technologies R6000 and R6000A series processors. Note these processors are extremely rare and the support for them is incomplete. config CPU_NEVADA bool "RM52xx" depends on SYS_HAS_CPU_NEVADA select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HUGEPAGES help QED / PMC-Sierra RM52xx-series ("Nevada") processors. config CPU_R8000 bool "R8000" depends on SYS_HAS_CPU_R8000 select CPU_HAS_PREFETCH select CPU_SUPPORTS_64BIT_KERNEL help MIPS Technologies R8000 processors. Note these processors are uncommon and the support for them is incomplete. config CPU_R10000 bool "R10000" depends on SYS_HAS_CPU_R10000 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES help MIPS Technologies R10000-series processors. config CPU_RM7000 bool "RM7000" depends on SYS_HAS_CPU_RM7000 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES config CPU_SB1 bool "SB1" depends on SYS_HAS_CPU_SB1 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select WEAK_ORDERING config CPU_CAVIUM_OCTEON bool "Cavium Octeon processor" depends on SYS_HAS_CPU_CAVIUM_OCTEON select CPU_HAS_PREFETCH select CPU_SUPPORTS_64BIT_KERNEL select WEAK_ORDERING select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select USB_EHCI_BIG_ENDIAN_MMIO select MIPS_L1_CACHE_SHIFT_7 help The Cavium Octeon processor is a highly integrated chip containing many ethernet hardware widgets for networking tasks. The processor can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. Full details can be found at http://www.caviumnetworks.com. config CPU_BMIPS bool "Broadcom BMIPS" depends on SYS_HAS_CPU_BMIPS select CPU_MIPS32 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 select CPU_SUPPORTS_32BIT_KERNEL select DMA_NONCOHERENT select IRQ_CPU select SWAP_IO_SPACE select WEAK_ORDERING select CPU_SUPPORTS_HIGHMEM select CPU_HAS_PREFETCH help Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. config CPU_XLR bool "Netlogic XLR SoC" depends on SYS_HAS_CPU_XLR select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC help Netlogic Microsystems XLR/XLS processors. config CPU_XLP bool "Netlogic XLP SoC" depends on SYS_HAS_CPU_XLP select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC select CPU_HAS_PREFETCH select CPU_MIPSR2 help Netlogic Microsystems XLP processors. endchoice config CPU_MIPS32_3_5_FEATURES bool "MIPS32 Release 3.5 Features" depends on SYS_HAS_CPU_MIPS32_R3_5 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 help Choose this option to build a kernel for release 2 or later of the MIPS32 architecture including features from the 3.5 release such as support for Enhanced Virtual Addressing (EVA). config CPU_MIPS32_3_5_EVA bool "Enhanced Virtual Addressing (EVA)" depends on CPU_MIPS32_3_5_FEATURES select EVA default y help Choose this option if you want to enable the Enhanced Virtual Addressing (EVA) on your MIPS32 core (such as proAptiv). One of its primary benefits is an increase in the maximum size of lowmem (up to 3GB). If unsure, say 'N' here. if CPU_LOONGSON2F config CPU_NOP_WORKAROUNDS bool config CPU_JUMP_WORKAROUNDS bool config CPU_LOONGSON2F_WORKAROUNDS bool "Loongson 2F Workarounds" default y select CPU_NOP_WORKAROUNDS select CPU_JUMP_WORKAROUNDS help Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which require workarounds. Without workarounds the system may hang unexpectedly. For more information please refer to the gas -mfix-loongson2f-nop and -mfix-loongson2f-jump options. Loongson 2F03 and later have fixed these issues and no workarounds are needed. The workarounds have no significant side effect on them but may decrease the performance of the system so this option should be disabled unless the kernel is intended to be run on 2F01 or 2F02 systems. If unsure, please say Y. endif # CPU_LOONGSON2F config SYS_SUPPORTS_ZBOOT bool select HAVE_KERNEL_GZIP select HAVE_KERNEL_BZIP2 select HAVE_KERNEL_LZ4 select HAVE_KERNEL_LZMA select HAVE_KERNEL_LZO select HAVE_KERNEL_XZ config SYS_SUPPORTS_ZBOOT_UART16550 bool select SYS_SUPPORTS_ZBOOT config CPU_LOONGSON2 bool select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_64BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_HUGEPAGES config CPU_LOONGSON1 bool select CPU_MIPS32 select CPU_MIPSR2 select CPU_HAS_PREFETCH select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM select CPU_SUPPORTS_CPUFREQ config CPU_BMIPS32_3300 select SMP_UP if SMP bool config CPU_BMIPS4350 bool select SYS_SUPPORTS_SMP select SYS_SUPPORTS_HOTPLUG_CPU config CPU_BMIPS4380 bool select MIPS_L1_CACHE_SHIFT_6 select SYS_SUPPORTS_SMP select SYS_SUPPORTS_HOTPLUG_CPU config CPU_BMIPS5000 bool select MIPS_CPU_SCACHE select MIPS_L1_CACHE_SHIFT_7 select SYS_SUPPORTS_SMP select SYS_SUPPORTS_HOTPLUG_CPU config SYS_HAS_CPU_LOONGSON3 bool select CPU_SUPPORTS_CPUFREQ config SYS_HAS_CPU_LOONGSON2E bool config SYS_HAS_CPU_LOONGSON2F bool select CPU_SUPPORTS_CPUFREQ select CPU_SUPPORTS_ADDRWINCFG if 64BIT select CPU_SUPPORTS_UNCACHED_ACCELERATED config SYS_HAS_CPU_LOONGSON1B bool config SYS_HAS_CPU_MIPS32_R1 bool config SYS_HAS_CPU_MIPS32_R2 bool config SYS_HAS_CPU_MIPS32_R3_5 bool config SYS_HAS_CPU_MIPS32_R6 bool config SYS_HAS_CPU_MIPS64_R1 bool config SYS_HAS_CPU_MIPS64_R2 bool config SYS_HAS_CPU_MIPS64_R6 bool config SYS_HAS_CPU_R3000 bool config SYS_HAS_CPU_TX39XX bool config SYS_HAS_CPU_VR41XX bool config SYS_HAS_CPU_R4300 bool config SYS_HAS_CPU_R4X00 bool config SYS_HAS_CPU_TX49XX bool config SYS_HAS_CPU_R5000 bool config SYS_HAS_CPU_R5432 bool config SYS_HAS_CPU_R5500 bool config SYS_HAS_CPU_R6000 bool config SYS_HAS_CPU_NEVADA bool config SYS_HAS_CPU_R8000 bool config SYS_HAS_CPU_R10000 bool config SYS_HAS_CPU_RM7000 bool config SYS_HAS_CPU_SB1 bool config SYS_HAS_CPU_CAVIUM_OCTEON bool config SYS_HAS_CPU_BMIPS bool config SYS_HAS_CPU_BMIPS32_3300 bool select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS4350 bool select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS4380 bool select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS5000 bool select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_XLR bool config SYS_HAS_CPU_XLP bool config MIPS_MALTA_PM depends on MIPS_MALTA depends on PCI bool default y # # CPU may reorder R->R, R->W, W->R, W->W # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC # config WEAK_ORDERING bool # # CPU may reorder reads and writes beyond LL/SC # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC # config WEAK_REORDERING_BEYOND_LLSC bool endmenu # # These two indicate any level of the MIPS32 and MIPS64 architecture # config CPU_MIPS32 bool default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 config CPU_MIPS64 bool default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 # # These two indicate the revision of the architecture, either Release 1 or Release 2 # config CPU_MIPSR1 bool default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 config CPU_MIPSR2 bool default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON select MIPS_SPRAM config CPU_MIPSR6 bool default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 select MIPS_SPRAM config EVA bool config SYS_SUPPORTS_32BIT_KERNEL bool config SYS_SUPPORTS_64BIT_KERNEL bool config CPU_SUPPORTS_32BIT_KERNEL bool config CPU_SUPPORTS_64BIT_KERNEL bool config CPU_SUPPORTS_CPUFREQ bool config CPU_SUPPORTS_ADDRWINCFG bool config CPU_SUPPORTS_HUGEPAGES bool config CPU_SUPPORTS_UNCACHED_ACCELERATED bool config MIPS_PGD_C0_CONTEXT bool default y if 64BIT && CPU_MIPSR2 && !CPU_XLP # # Set to y for ptrace access to watch registers. # config HARDWARE_WATCHPOINTS bool default y if CPU_MIPSR1 || CPU_MIPSR2 menu "Kernel type" choice prompt "Kernel code model" help You should only select this option if you have a workload that actually benefits from 64-bit processing or if your machine has large memory. You will only be presented a single option in this menu if your system does not support both 32-bit and 64-bit kernels. config 32BIT bool "32-bit kernel" depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL select TRAD_SIGNALS help Select this option if you want to build a 32-bit kernel. config 64BIT bool "64-bit kernel" depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL help Select this option if you want to build a 64-bit kernel. endchoice config KVM_GUEST bool "KVM Guest Kernel" depends on BROKEN_ON_SMP help Select this option if building a guest kernel for KVM (Trap & Emulate) mode config KVM_GUEST_TIMER_FREQ int "Count/Compare Timer Frequency (MHz)" depends on KVM_GUEST default 100 help Set this to non-zero if building a guest kernel for KVM to skip RTC emulation when determining guest CPU Frequency. Instead, the guest's timer frequency is specified directly. choice prompt "Kernel page size" default PAGE_SIZE_4KB config PAGE_SIZE_4KB bool "4kB" depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 help This option select the standard 4kB Linux page size. On some R3000-family processors this is the only available page size. Using 4kB page size will minimize memory consumption and is therefore recommended for low memory systems. config PAGE_SIZE_8KB bool "8kB" depends on CPU_R8000 || CPU_CAVIUM_OCTEON help Using 8kB page size will result in higher performance kernel at the price of higher memory consumption. This option is available only on R8000 and cnMIPS processors. Note that you will need a suitable Linux distribution to support this. config PAGE_SIZE_16KB bool "16kB" depends on !CPU_R3000 && !CPU_TX39XX help Using 16kB page size will result in higher performance kernel at the price of higher memory consumption. This option is available on all non-R3000 family processors. Note that you will need a suitable Linux distribution to support this. config PAGE_SIZE_32KB bool "32kB" depends on CPU_CAVIUM_OCTEON help Using 32kB page size will result in higher performance kernel at the price of higher memory consumption. This option is available only on cnMIPS cores. Note that you will need a suitable Linux distribution to support this. config PAGE_SIZE_64KB bool "64kB" depends on !CPU_R3000 && !CPU_TX39XX help Using 64kB page size will result in higher performance kernel at the price of higher memory consumption. This option is available on all non-R3000 family processor. Not that at the time of this writing this option is still high experimental. endchoice config FORCE_MAX_ZONEORDER int "Maximum zone order" range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB range 11 64 default "11" help The kernel memory allocator divides physically contiguous memory blocks into "zones", where each zone is a power of two number of pages. This option selects the largest power of two that the kernel keeps in the memory allocator. If you need to allocate very large blocks of physically contiguous memory, then you may need to increase this value. This config option is actually maximum order plus one. For example, a value of 11 means that the largest free memory block is 2^10 pages. The page size is not necessarily 4KB. Keep this in mind when choosing a value for this option. config BOARD_SCACHE bool config IP22_CPU_SCACHE bool select BOARD_SCACHE # # Support for a MIPS32 / MIPS64 style S-caches # config MIPS_CPU_SCACHE bool select BOARD_SCACHE config R5000_CPU_SCACHE bool select BOARD_SCACHE config RM7000_CPU_SCACHE bool select BOARD_SCACHE config SIBYTE_DMA_PAGEOPS bool "Use DMA to clear/copy pages" depends on CPU_SB1 help Instead of using the CPU to zero and copy pages, use a Data Mover channel. These DMA channels are otherwise unused by the standard SiByte Linux port. Seems to give a small performance benefit. config CPU_HAS_PREFETCH bool config CPU_GENERIC_DUMP_TLB bool default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) config CPU_R4K_FPU bool default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) config CPU_R4K_CACHE_TLB bool default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) config MIPS_MT_SMP bool "MIPS MT SMP support (1 TC on each available VPE)" depends on SYS_SUPPORTS_MULTITHREADING select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI select SYNC_R4K select MIPS_GIC_IPI select MIPS_MT select SMP select SMP_UP select SYS_SUPPORTS_SMP select SYS_SUPPORTS_SCHED_SMT select MIPS_PERF_SHARED_TC_COUNTERS help This is a kernel model which is known as SMVP. This is supported on cores with the MT ASE and uses the available VPEs to implement virtual processors which supports SMP. This is equivalent to the Intel Hyperthreading feature. For further information go to . config MIPS_MT bool config SCHED_SMT bool "SMT (multithreading) scheduler support" depends on SYS_SUPPORTS_SCHED_SMT default n help SMT scheduler support improves the CPU scheduler's decision making when dealing with MIPS MT enabled cores at a cost of slightly increased overhead in some places. If unsure say N here. config SYS_SUPPORTS_SCHED_SMT bool config SYS_SUPPORTS_MULTITHREADING bool config MIPS_MT_FPAFF bool "Dynamic FPU affinity for FP-intensive threads" default y depends on MIPS_MT_SMP config MIPSR2_TO_R6_EMULATOR bool "MIPS R2-to-R6 emulator" depends on CPU_MIPSR6 && !SMP default y help Choose this option if you want to run non-R6 MIPS userland code. Even if you say 'Y' here, the emulator will still be disabled by default. You can enable it using the 'mipsr2emul' kernel option. The only reason this is a build-time option is to save ~14K from the final kernel image. comment "MIPS R2-to-R6 emulator is only available for UP kernels" depends on SMP && CPU_MIPSR6 config MIPS_VPE_LOADER bool "VPE loader support." depends on SYS_SUPPORTS_MULTITHREADING && MODULES select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI select MIPS_MT help Includes a loader for loading an elf relocatable object onto another VPE and running it. config MIPS_VPE_LOADER_CMP bool default "y" depends on MIPS_VPE_LOADER && MIPS_CMP config MIPS_VPE_LOADER_MT bool default "y" depends on MIPS_VPE_LOADER && !MIPS_CMP config MIPS_VPE_LOADER_TOM bool "Load VPE program into memory hidden from linux" depends on MIPS_VPE_LOADER default y help The loader can use memory that is present but has been hidden from Linux using the kernel command line option "mem=xxMB". It's up to you to ensure the amount you put in the option and the space your program requires is less or equal to the amount physically present. config MIPS_VPE_APSP_API bool "Enable support for AP/SP API (RTLX)" depends on MIPS_VPE_LOADER help config MIPS_VPE_APSP_API_CMP bool default "y" depends on MIPS_VPE_APSP_API && MIPS_CMP config MIPS_VPE_APSP_API_MT bool default "y" depends on MIPS_VPE_APSP_API && !MIPS_CMP config MIPS_CMP bool "MIPS CMP framework support (DEPRECATED)" depends on SYS_SUPPORTS_MIPS_CMP select MIPS_GIC_IPI select SMP select SYNC_R4K select SYS_SUPPORTS_SMP select WEAK_ORDERING default n help Select this if you are using a bootloader which implements the "CMP framework" protocol (ie. YAMON) and want your kernel to make use of its ability to start secondary CPUs. Unless you have a specific need, you should use CONFIG_MIPS_CPS instead of this. config MIPS_CPS bool "MIPS Coherent Processing System support" depends on SYS_SUPPORTS_MIPS_CPS select MIPS_CM select MIPS_CPC select MIPS_CPS_PM if HOTPLUG_CPU select MIPS_GIC_IPI select SMP select SYNC_R4K if (CEVT_R4K || CSRC_R4K) select SYS_SUPPORTS_HOTPLUG_CPU select SYS_SUPPORTS_SMP select WEAK_ORDERING help Select this if you wish to run an SMP kernel across multiple cores within a MIPS Coherent Processing System. When this option is enabled the kernel will probe for other cores and boot them with no external assistance. It is safe to enable this when hardware support is unavailable. config MIPS_CPS_PM depends on MIPS_CPS select MIPS_CPC bool config MIPS_GIC_IPI bool config MIPS_CM bool config MIPS_CPC bool config SB1_PASS_1_WORKAROUNDS bool depends on CPU_SB1_PASS_1 default y config SB1_PASS_2_WORKAROUNDS bool depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) default y config SB1_PASS_2_1_WORKAROUNDS bool depends on CPU_SB1 && CPU_SB1_PASS_2 default y config ARCH_PHYS_ADDR_T_64BIT bool choice prompt "SmartMIPS or microMIPS ASE support" config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS bool "None" help Select this if you want neither microMIPS nor SmartMIPS support config CPU_HAS_SMARTMIPS depends on SYS_SUPPORTS_SMARTMIPS bool "SmartMIPS" help SmartMIPS is a extension of the MIPS32 architecture aimed at increased security at both hardware and software level for smartcards. Enabling this option will allow proper use of the SmartMIPS instructions by Linux applications. However a kernel with this option will not work on a MIPS core without SmartMIPS core. If you don't know you probably don't have SmartMIPS and should say N here. config CPU_MICROMIPS depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 bool "microMIPS" help When this option is enabled the kernel will be built using the microMIPS ISA endchoice config CPU_HAS_MSA bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)" depends on CPU_SUPPORTS_MSA depends on 64BIT || MIPS_O32_FP64_SUPPORT help MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers and a set of SIMD instructions to operate on them. When this option is enabled the kernel will support allocating & switching MSA vector register contexts. If you know that your kernel will only be running on CPUs which do not support MSA or that your userland will not be making use of it then you may wish to say N here to reduce the size & complexity of your kernel. If unsure, say Y. config CPU_HAS_WB bool config XKS01 bool # # Vectored interrupt mode is an R2 feature # config CPU_MIPSR2_IRQ_VI bool # # Extended interrupt mode is an R2 feature # config CPU_MIPSR2_IRQ_EI bool config CPU_HAS_SYNC bool depends on !CPU_R3000 default y # # CPU non-features # config CPU_DADDI_WORKAROUNDS bool config CPU_R4000_WORKAROUNDS bool select CPU_R4400_WORKAROUNDS config CPU_R4400_WORKAROUNDS bool # # - Highmem only makes sense for the 32-bit kernel. # - The current highmem code will only work properly on physically indexed # caches such as R3000, SB1, R7000 or those that look like they're virtually # indexed such as R4000/R4400 SC and MC versions or R10000. So for the # moment we protect the user and offer the highmem option only on machines # where it's known to be safe. This will not offer highmem on a few systems # such as MIPS32 and MIPS64 CPUs which may have virtual and physically # indexed CPUs but we're playing safe. # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we # know they might have memory configurations that could make use of highmem # support. # config HIGHMEM bool "High Memory Support" depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA config CPU_SUPPORTS_HIGHMEM bool config SYS_SUPPORTS_HIGHMEM bool config SYS_SUPPORTS_SMARTMIPS bool config SYS_SUPPORTS_MICROMIPS bool config SYS_SUPPORTS_MIPS16 bool help This option must be set if a kernel might be executed on a MIPS16- enabled CPU even if MIPS16 is not actually being used. In other words, it makes the kernel MIPS16-tolerant. config CPU_SUPPORTS_MSA bool config ARCH_FLATMEM_ENABLE def_bool y depends on !NUMA && !CPU_LOONGSON2 config ARCH_DISCONTIGMEM_ENABLE bool default y if SGI_IP27 help Say Y to support efficient handling of discontiguous physical memory, for architectures which are either NUMA (Non-Uniform Memory Access) or have huge holes in the physical address space for other reasons. See for more. config ARCH_SPARSEMEM_ENABLE bool select SPARSEMEM_STATIC config NUMA bool "NUMA Support" depends on SYS_SUPPORTS_NUMA help Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option improves performance on systems with more than two nodes; on two node systems it is generally better to leave it disabled; on single node systems disable this option disabled. config SYS_SUPPORTS_NUMA bool config NODES_SHIFT int default "6" depends on NEED_MULTIPLE_NODES config HW_PERF_EVENTS bool "Enable hardware performance counter support for perf events" depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) default y help Enable hardware performance counter support for perf events. If disabled, perf events will use software events only. source "mm/Kconfig" config SMP bool "Multi-Processing support" depends on SYS_SUPPORTS_SMP help This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more than one CPU, say Y. If you say N here, the kernel will run on uni- and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on many, but not all, uniprocessor machines. On a uniprocessor machine, the kernel will run faster if you say N here. People using multiprocessor machines who say Y here should also say Y to "Enhanced Real Time Clock Support", below. See also the SMP-HOWTO available at . If you don't know what to do here, say N. config SMP_UP bool config SYS_SUPPORTS_MIPS_CMP bool config SYS_SUPPORTS_MIPS_CPS bool config SYS_SUPPORTS_SMP bool config NR_CPUS_DEFAULT_4 bool config NR_CPUS_DEFAULT_8 bool config NR_CPUS_DEFAULT_16 bool config NR_CPUS_DEFAULT_32 bool config NR_CPUS_DEFAULT_64 bool config NR_CPUS int "Maximum number of CPUs (2-256)" range 2 256 depends on SMP default "4" if NR_CPUS_DEFAULT_4 default "8" if NR_CPUS_DEFAULT_8 default "16" if NR_CPUS_DEFAULT_16 default "32" if NR_CPUS_DEFAULT_32 default "64" if NR_CPUS_DEFAULT_64 help This allows you to specify the maximum number of CPUs which this kernel will support. The maximum supported value is 32 for 32-bit kernel and 64 for 64-bit kernels; the minimum value which makes sense is 1 for Qemu (useful only for kernel debugging purposes) and 2 for all others. This is purely to save memory - each supported CPU adds approximately eight kilobytes to the kernel image. For best performance should round up your number of processors to the next power of two. config MIPS_PERF_SHARED_TC_COUNTERS bool # # Timer Interrupt Frequency Configuration # choice prompt "Timer frequency" default HZ_250 help Allows the configuration of the timer frequency. config HZ_48 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_100 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_128 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_250 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_256 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_1000 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ config HZ_1024 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ endchoice config SYS_SUPPORTS_48HZ bool config SYS_SUPPORTS_100HZ bool config SYS_SUPPORTS_128HZ bool config SYS_SUPPORTS_250HZ bool config SYS_SUPPORTS_256HZ bool config SYS_SUPPORTS_1000HZ bool config SYS_SUPPORTS_1024HZ bool config SYS_SUPPORTS_ARBIT_HZ bool default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ !SYS_SUPPORTS_1024HZ config HZ int default 48 if HZ_48 default 100 if HZ_100 default 128 if HZ_128 default 250 if HZ_250 default 256 if HZ_256 default 1000 if HZ_1000 default 1024 if HZ_1024 source "kernel/Kconfig.preempt" config KEXEC bool "Kexec system call" help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. The name comes from the similarity to the exec system call. It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not initially work for you. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. config CRASH_DUMP bool "Kernel crash dumps" help Generate crash dump after being started by kexec. This should be normally only set in special crash dump kernels which are loaded in the main kernel with kexec-tools into a specially reserved region and then later executed after a crash by kdump/kexec. The crash dump kernel must be compiled to a memory address not used by the main kernel or firmware using PHYSICAL_START. config PHYSICAL_START hex "Physical address where the kernel is loaded" default "0xffffffff84000000" if 64BIT default "0x84000000" if 32BIT depends on CRASH_DUMP help This gives the CKSEG0 or KSEG0 address where the kernel is loaded. If you plan to use kernel for capturing the crash dump change this value to start of the reserved region (the "X" value as specified in the "crashkernel=YM@XM" command line boot parameter passed to the panic-ed kernel). config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" depends on PROC_FS default y help This kernel feature is useful for number crunching applications that may need to compute untrusted bytecode during their execution. By using pipes or other transports made available to the process as file descriptors supporting the read/write syscalls, it's possible to isolate those applications in their own address space using seccomp. Once seccomp is enabled via /proc//seccomp, it cannot be disabled and the task is only allowed to execute a few safe syscalls defined by each seccomp mode. If unsure, say Y. Only embedded should say N here. config MIPS_O32_FP64_SUPPORT bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)" depends on 32BIT || MIPS32_O32 help When this is enabled, the kernel will support use of 64-bit floating point registers with binaries using the O32 ABI along with the EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 32-bit MIPS systems this support is at the cost of increasing the size and complexity of the compiled FPU emulator. Thus if you are running a MIPS32 system and know that none of your userland binaries will require 64-bit floating point, you may wish to reduce the size of your kernel & potentially improve FP emulation performance by saying N here. Although binutils currently supports use of this flag the details concerning its effect upon the O32 ABI in userland are still being worked on. In order to avoid userland becoming dependant upon current behaviour before the details have been finalised, this option should be considered experimental and only enabled by those working upon said details. If unsure, say N. config USE_OF bool select OF select OF_EARLY_FLATTREE select IRQ_DOMAIN config BUILTIN_DTB bool endmenu config LOCKDEP_SUPPORT bool default y config STACKTRACE_SUPPORT bool default y source "init/Kconfig" source "kernel/Kconfig.freezer" menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" config HW_HAS_EISA bool config HW_HAS_PCI bool config PCI bool "Support for PCI controller" depends on HW_HAS_PCI select PCI_DOMAINS select NO_GENERIC_PCI_IOPORT_MAP help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, say Y, otherwise N. config HT_PCI bool "Support for HT-linked PCI" default y depends on CPU_LOONGSON3 select PCI select PCI_DOMAINS help Loongson family machines use Hyper-Transport bus for inter-core connection and device connection. The PCI bus is a subordinate linked at HT. Choose Y for Loongson-3 based machines. config PCI_DOMAINS bool source "drivers/pci/Kconfig" source "drivers/pci/pcie/Kconfig" # # ISA support is now enabled via select. Too many systems still have the one # or other ISA chip on the board that users don't know about so don't expect # users to choose the right thing ... # config ISA bool config EISA bool "EISA support" depends on HW_HAS_EISA select ISA select GENERIC_ISA_DMA ---help--- The Extended Industry Standard Architecture (EISA) bus was developed as an open alternative to the IBM MicroChannel bus. The EISA bus provided some of the features of the IBM MicroChannel bus while maintaining backward compatibility with cards made for the older ISA bus. The EISA bus saw limited use between 1988 and 1995 when it was made obsolete by the PCI bus. Say Y here if you are building a kernel for an EISA-based machine. Otherwise, say N. source "drivers/eisa/Kconfig" config TC bool "TURBOchannel support" depends on MACH_DECSTATION help TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS processors. TURBOchannel programming specifications are available at: and: Linux driver support status is documented at: config MMU bool default y config I8253 bool select CLKSRC_I8253 select CLKEVT_I8253 select MIPS_EXTERNAL_TIMER config ZONE_DMA bool config ZONE_DMA32 bool source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" config RAPIDIO tristate "RapidIO support" depends on PCI default n help If you say Y here, the kernel will include drivers and infrastructure code to support RapidIO interconnect devices. source "drivers/rapidio/Kconfig" endmenu menu "Executable file formats" source "fs/Kconfig.binfmt" config TRAD_SIGNALS bool config MIPS32_COMPAT bool config COMPAT bool config SYSVIPC_COMPAT bool config MIPS32_O32 bool "Kernel support for o32 binaries" depends on 64BIT select ARCH_WANT_OLD_COMPAT_IPC select COMPAT select MIPS32_COMPAT select SYSVIPC_COMPAT if SYSVIPC help Select this option if you want to run o32 binaries. These are pure 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of existing binaries are in this format. If unsure, say Y. config MIPS32_N32 bool "Kernel support for n32 binaries" depends on 64BIT select COMPAT select MIPS32_COMPAT select SYSVIPC_COMPAT if SYSVIPC help Select this option if you want to run n32 binaries. These are 64-bit binaries using 32-bit quantities for addressing and certain data that would normally be 64-bit. They are used in special cases. If unsure, say N. config BINFMT_ELF32 bool default y if MIPS32_O32 || MIPS32_N32 endmenu menu "Power management options" config ARCH_HIBERNATION_POSSIBLE def_bool y depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP config ARCH_SUSPEND_POSSIBLE def_bool y depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP source "kernel/power/Kconfig" endmenu config MIPS_EXTERNAL_TIMER bool menu "CPU Power Management" if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER source "drivers/cpufreq/Kconfig" endif source "drivers/cpuidle/Kconfig" endmenu source "net/Kconfig" source "drivers/Kconfig" source "drivers/firmware/Kconfig" source "fs/Kconfig" source "arch/mips/Kconfig.debug" source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" source "arch/mips/kvm/Kconfig"