Kconfig 67.7 KB
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config MIPS
	bool
	default y
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select HAVE_CONTEXT_TRACKING
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	select HAVE_GENERIC_DMA_COHERENT
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	select HAVE_IDE
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	select HAVE_OPROFILE
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	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_BPF_JIT if !CPU_MICROMIPS
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	select ARCH_HAVE_CUSTOM_GPIO_H
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	select HAVE_FUNCTION_TRACER
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	select HAVE_DYNAMIC_FTRACE
	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_C_RECORDMCOUNT
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_DEBUG_KMEMLEAK
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	select HAVE_SYSCALL_TRACEPOINTS
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	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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	select RTC_LIB if !MACH_LOONGSON
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	select GENERIC_ATOMIC64 if !64BIT
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	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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	select HAVE_DMA_ATTRS
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	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DMA_API_DEBUG
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	select GENERIC_IRQ_PROBE
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	select GENERIC_IRQ_SHOW
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	select GENERIC_PCI_IOMAP
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	select HAVE_ARCH_JUMP_LABEL
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select IRQ_FORCED_THREADING
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	select HAVE_MEMBLOCK
	select HAVE_MEMBLOCK_NODE_MAP
	select ARCH_DISCARD_MEMBLOCK
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	select GENERIC_SMP_IDLE_THREAD
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	select BUILDTIME_EXTABLE_SORT
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	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
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	select HAVE_MOD_ARCH_SPECIFIC
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	select VIRT_TO_BUS
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	select MODULES_USE_ELF_REL if MODULES
	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select CLONE_BACKWARDS
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	select HAVE_DEBUG_STACKOVERFLOW
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	select HAVE_CC_STACKPROTECTOR
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	select CPU_PM if CPU_IDLE
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	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_BINFMT_ELF_STATE
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	select SYSCTL_EXCEPTION_TRACE
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menu "Machine selection"

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choice
	prompt "System type"
	default SGI_IP22
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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select ARCH_PHYS_ADDR_T_64BIT
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_CPU
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	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
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	select ARCH_REQUIRE_GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select COMMON_CLK
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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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select ARCH_REQUIRE_GPIOLIB
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	select VLYNQ
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	select HAVE_CLK
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	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

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config ATH25
	bool "Atheros AR231x/AR531x SoC support"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
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	select IRQ_DOMAIN
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_HAS_EARLY_PRINTK
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	help
	  Support for Atheros AR231x and Atheros AR531x based boards

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config ATH79
	bool "Atheros AR71XX/AR724X/AR913X based boards"
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	select ARCH_REQUIRE_GPIOLIB
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	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
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	select HAVE_CLK
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	select CLKDEV_LOOKUP
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	select IRQ_CPU
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	select MIPS_MACHINE
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	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	help
	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.

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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.

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config BCM47XX
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	bool "Broadcom BCM47XX based boards"
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	select ARCH_WANT_OPTIONAL_GPIOLIB
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
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	select SYS_HAS_CPU_MIPS32_R1
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	select NO_EXCEPT_FILL
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	select SYS_HAS_EARLY_PRINTK
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select GPIOLIB
	select LEDS_GPIO_REGISTER
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	help
	 Support for BCM47XX based boards

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config BCM63XX
	bool "Broadcom BCM63XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
	select CSRC_R4K
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	select SYNC_R4K
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	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
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	select HAVE_CLK
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	select MIPS_L1_CACHE_SHIFT_4
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	help
	 Support for BCM63XX based boards

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config MIPS_COBALT
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	bool "Cobalt Server"
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	select CEVT_R4K
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	select CSRC_R4K
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	select CEVT_GT641XX
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
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	select I8253
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	select I8259
	select IRQ_CPU
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	select IRQ_GT641XX
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	select PCI_GT64XXX_PCI0
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	select PCI
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	select SYS_HAS_CPU_NEVADA
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select USE_GENERIC_EARLY_PRINTK_8250
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config MACH_DECSTATION
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	bool "DECstations"
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	select BOOT_ELF32
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	select CEVT_DS1287
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	select CEVT_R4K if CPU_R4X00
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	select CSRC_IOASIC
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	select CSRC_R4K if CPU_R4X00
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	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
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	select DMA_NONCOHERENT
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	select NO_IOPORT_MAP
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	select IRQ_CPU
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	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
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	select MIPS_L1_CACHE_SHIFT_4
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	help
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	  This enables support for DEC's MIPS based workstations.  For details
	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
	  DECstation porting pages on <http://decstation.unix-ag.org/>.

	  If you have one of the following DECstation Models you definitely
	  want to choose R4xx0 for the CPU Type:

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		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260
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	  otherwise choose R3000.

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	 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.
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	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
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	 Olivetti M700-10 workstations.

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config MACH_JZ4740
	bool "Ingenic JZ4740 based machines"
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select DMA_NONCOHERENT
	select IRQ_CPU
	select ARCH_REQUIRE_GPIOLIB
	select SYS_HAS_EARLY_PRINTK
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	select HAVE_CLK
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	select GENERIC_IRQ_CHIP
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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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
	select SYS_HAS_EARLY_PRINTK
	select ARCH_REQUIRE_GPIOLIB
	select SWAP_IO_SPACE
	select BOOT_RAW
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	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CRC32
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select HW_HAS_PCI
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	select IRQ_CPU
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	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

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config MACH_LOONGSON
	bool "Loongson family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  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.
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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.

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config MIPS_MALTA
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	bool "MIPS Malta board"
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	select ARCH_MAY_HAVE_PC_FDC
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	select BOOT_ELF32
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select CLKSRC_MIPS_GIC
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	select DMA_MAYBE_COHERENT
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_CPU
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	select MIPS_GIC
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	select HW_HAS_PCI
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	select I8253
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	select I8259
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	select MIPS_BONITO64
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	select MIPS_CPU_SCACHE
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	select MIPS_L1_CACHE_SHIFT_6
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	select PCI_GT64XXX_PCI0
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	select MIPS_MSC
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
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	select SYS_HAS_CPU_MIPS32_R3_5
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	select SYS_HAS_CPU_MIPS32_R6
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	select SYS_HAS_CPU_MIPS64_R1
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	select SYS_HAS_CPU_MIPS64_R2
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	select SYS_HAS_CPU_MIPS64_R6
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	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MICROMIPS
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	select SYS_SUPPORTS_MIPS_CMP
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	select SYS_SUPPORTS_MIPS_CPS
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_SMARTMIPS
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the MIPS Technologies Malta evaluation
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	  board.

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config MIPS_SEAD3
	bool "MIPS SEAD3 board"
	select BOOT_ELF32
	select BOOT_RAW
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	select BUILTIN_DTB
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	select CEVT_R4K
	select CSRC_R4K
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	select CLKSRC_MIPS_GIC
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	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select DMA_NONCOHERENT
	select IRQ_CPU
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	select MIPS_GIC
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	select LIBFDT
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	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
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	select SYS_SUPPORTS_MICROMIPS
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	select SYS_SUPPORTS_MIPS16
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	select USB_EHCI_BIG_ENDIAN_DESC
	select USB_EHCI_BIG_ENDIAN_MMIO
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	select USE_OF
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	help
	  This enables support for the MIPS Technologies SEAD3 evaluation
	  board.

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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.
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config MACH_VR41XX
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	bool "NEC VR4100 series based machines"
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	select CEVT_R4K
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	select CSRC_R4K
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	select SYS_HAS_CPU_VR41XX
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	select SYS_SUPPORTS_MIPS16
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	select ARCH_REQUIRE_GPIOLIB
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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.

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config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
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	select CEVT_R4K
	select CSRC_R4K
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	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
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	select SYS_SUPPORTS_MIPS16
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	select IRQ_CPU
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
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	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
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	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.

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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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_HAS_EARLY_PRINTK
	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config SGI_IP22
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	bool "SGI IP22 (Indy/Indigo2)"
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	select FW_ARC
	select FW_ARC32
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	select BOOT_ELF32
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION
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	select DMA_NONCOHERENT
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	select HW_HAS_EISA
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	select I8253
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	select I8259
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	select IP22_CPU_SCACHE
	select IRQ_CPU
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	select GENERIC_ISA_DMA_SUPPORT_BROKEN
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	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
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	select SGI_HAS_HAL2
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	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
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	#
	# 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
537 538
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
539
	select SYS_SUPPORTS_BIG_ENDIAN
540
	select MIPS_L1_CACHE_SHIFT_7
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541 542 543 544 545 546
	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
547
	bool "SGI IP27 (Origin200/2000)"
548 549
	select FW_ARC
	select FW_ARC64
550
	select BOOT_ELF64
T
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551
	select DEFAULT_SGI_PARTITION
552
	select DMA_COHERENT
553
	select SYS_HAS_EARLY_PRINTK
L
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554
	select HW_HAS_PCI
555
	select NR_CPUS_DEFAULT_64
556
	select SYS_HAS_CPU_R10000
557
	select SYS_SUPPORTS_64BIT_KERNEL
558
	select SYS_SUPPORTS_BIG_ENDIAN
559
	select SYS_SUPPORTS_NUMA
560
	select SYS_SUPPORTS_SMP
561
	select MIPS_L1_CACHE_SHIFT_7
L
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562 563 564 565 566
	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.

T
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567
config SGI_IP28
568
	bool "SGI IP28 (Indigo2 R10k)"
569 570
	select FW_ARC
	select FW_ARC64
T
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571 572 573 574 575 576 577 578 579 580 581 582
	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
583
	select SGI_HAS_HAL2
T
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584 585 586 587 588
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
589 590 591 592 593 594 595 596
	#
	# 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
T
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597 598
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
599
	select MIPS_L1_CACHE_SHIFT_7
T
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600 601 602 603
      help
        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
        kernel that runs on these, say Y here.

L
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604
config SGI_IP32
605
	bool "SGI IP32 (O2)"
606 607
	select FW_ARC
	select FW_ARC32
L
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608
	select BOOT_ELF32
609
	select CEVT_R4K
610
	select CSRC_R4K
L
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611 612
	select DMA_NONCOHERENT
	select HW_HAS_PCI
613
	select IRQ_CPU
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614 615
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
616 617 618
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
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	select SYS_HAS_CPU_NEVADA
620
	select SYS_SUPPORTS_64BIT_KERNEL
621 622
	select SYS_SUPPORTS_BIG_ENDIAN
	help
623
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
624

625 626
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
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627 628
	select BOOT_ELF32
	select DMA_COHERENT
629
	select SIBYTE_BCM1120
A
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630
	select SWAP_IO_SPACE
631
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
632 633 634
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

635 636
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
637
	select BOOT_ELF32
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638
	select DMA_COHERENT
639
	select SIBYTE_BCM1120
640
	select SWAP_IO_SPACE
641
	select SYS_HAS_CPU_SB1
642
	select SYS_SUPPORTS_BIG_ENDIAN
643
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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644

645 646
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
647 648
	select BOOT_ELF32
	select DMA_COHERENT
649
	select SIBYTE_BCM1125
650
	select SWAP_IO_SPACE
651
	select SYS_HAS_CPU_SB1
652
	select SYS_SUPPORTS_BIG_ENDIAN
653
	select SYS_SUPPORTS_HIGHMEM
654
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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655

656
config SIBYTE_RHONE
657
	bool "Sibyte BCM91125E-Rhone"
658 659 660 661
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
662
	select SYS_HAS_CPU_SB1
663 664
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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665

666 667
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
668
	select BOOT_ELF32
P
Pete Popov 已提交
669
	select DMA_COHERENT
670
	select HAVE_PATA_PLATFORM
671
	select SIBYTE_SB1250
672
	select SWAP_IO_SPACE
673
	select SYS_HAS_CPU_SB1
674
	select SYS_SUPPORTS_BIG_ENDIAN
675
	select SYS_SUPPORTS_HIGHMEM
P
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676
	select SYS_SUPPORTS_LITTLE_ENDIAN
677
	select ZONE_DMA32 if 64BIT
P
Pete Popov 已提交
678

679 680
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
681 682
	select BOOT_ELF32
	select DMA_COHERENT
683
	select HAVE_PATA_PLATFORM
684 685
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
686
	select SYS_HAS_CPU_SB1
687 688 689
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
690

691 692
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
693 694 695 696
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
697
	select SYS_HAS_CPU_SB1
698 699
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
700

701 702
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
703 704
	select BOOT_ELF32
	select DMA_COHERENT
705 706
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
707
	select SWAP_IO_SPACE
708
	select SYS_HAS_CPU_SB1
709
	select SYS_SUPPORTS_BIG_ENDIAN
R
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710
	select SYS_SUPPORTS_HIGHMEM
711
	select SYS_SUPPORTS_LITTLE_ENDIAN
712
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
713

714 715
config SNI_RM
	bool "SNI RM200/300/400"
716 717
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
718
	select FW_SNIPROM if CPU_BIG_ENDIAN
719
	select ARCH_MAY_HAVE_PC_FDC
L
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720
	select BOOT_ELF32
721
	select CEVT_R4K
722
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
723
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
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724 725
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
726
	select HAVE_PCSPKR_PLATFORM
727
	select HW_HAS_EISA
L
Linus Torvalds 已提交
728
	select HW_HAS_PCI
729
	select IRQ_CPU
730
	select I8253
L
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731 732
	select I8259
	select ISA
733
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
734
	select SYS_HAS_CPU_R4X00
735
	select SYS_HAS_CPU_R5000
736
	select SYS_HAS_CPU_R10000
737
	select R5000_CPU_SCACHE
738
	select SYS_HAS_EARLY_PRINTK
739
	select SYS_SUPPORTS_32BIT_KERNEL
740
	select SYS_SUPPORTS_64BIT_KERNEL
741
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
742
	select SYS_SUPPORTS_HIGHMEM
743
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
744
	help
745 746
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
Linus Torvalds 已提交
747 748 749
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

750 751
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
752

753 754
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
755

756 757 758 759 760 761 762 763 764 765 766 767
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
768
	select ARCH_REQUIRE_GPIOLIB
769
	select MIPS_L1_CACHE_SHIFT_4
770 771 772 773
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

774 775
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
776
	select CEVT_R4K
777
	select ARCH_PHYS_ADDR_T_64BIT
778 779 780
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
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781
	select EDAC_SUPPORT
782
	select SYS_SUPPORTS_HOTPLUG_CPU
783
	select SYS_HAS_EARLY_PRINTK
784
	select SYS_HAS_CPU_CAVIUM_OCTEON
785
	select SWAP_IO_SPACE
786
	select HW_HAS_PCI
D
David Daney 已提交
787
	select ZONE_DMA32
788
	select HOLES_IN_ZONE
789
	select ARCH_REQUIRE_GPIOLIB
790 791 792 793 794
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_16
795
	select BUILTIN_DTB
796 797 798 799 800 801 802 803 804 805 806 807 808
	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.

809 810 811 812 813 814 815 816 817 818
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
819
	select ARCH_PHYS_ADDR_T_64BIT
820 821 822 823 824 825 826
	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
827
	select ZONE_DMA32 if 64BIT
828 829
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
830 831
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
832 833 834 835
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

836 837 838 839 840 841 842 843 844
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
845
	select ARCH_PHYS_ADDR_T_64BIT
846 847 848 849 850 851 852 853
	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
854
	select ZONE_DMA32 if 64BIT
855 856
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
857
	select USE_OF
858 859
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
860 861 862 863
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882
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 ????

883
endchoice
L
Linus Torvalds 已提交
884

R
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885
source "arch/mips/alchemy/Kconfig"
886
source "arch/mips/ath25/Kconfig"
887
source "arch/mips/ath79/Kconfig"
888
source "arch/mips/bcm47xx/Kconfig"
889
source "arch/mips/bcm63xx/Kconfig"
890
source "arch/mips/jazz/Kconfig"
891
source "arch/mips/jz4740/Kconfig"
892
source "arch/mips/lantiq/Kconfig"
893
source "arch/mips/lasat/Kconfig"
R
Ralf Baechle 已提交
894
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
895
source "arch/mips/ralink/Kconfig"
896
source "arch/mips/sgi-ip27/Kconfig"
897
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
898
source "arch/mips/txx9/Kconfig"
899
source "arch/mips/vr41xx/Kconfig"
900
source "arch/mips/cavium-octeon/Kconfig"
901
source "arch/mips/loongson/Kconfig"
902
source "arch/mips/loongson1/Kconfig"
903
source "arch/mips/netlogic/Kconfig"
904
source "arch/mips/paravirt/Kconfig"
905

906 907
endmenu

L
Linus Torvalds 已提交
908 909 910 911 912 913 914
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

915 916 917 918 919 920 921 922
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

923 924 925 926
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
927 928 929 930
config GENERIC_CALIBRATE_DELAY
	bool
	default y

931
config SCHED_OMIT_FRAME_POINTER
932 933 934
	bool
	default y

L
Linus Torvalds 已提交
935 936 937
#
# Select some configuration options automatically based on user selections.
#
938
config FW_ARC
L
Linus Torvalds 已提交
939 940
	bool

941 942 943
config ARCH_MAY_HAVE_PC_FDC
	bool

M
Marc St-Jean 已提交
944 945 946
config BOOT_RAW
	bool

947 948 949
config CEVT_BCM1480
	bool

950 951 952
config CEVT_DS1287
	bool

953 954 955
config CEVT_GT641XX
	bool

956 957 958
config CEVT_R4K
	bool

959 960 961
config CEVT_SB1250
	bool

962 963 964
config CEVT_TXX9
	bool

965 966 967
config CSRC_BCM1480
	bool

968 969 970
config CSRC_IOASIC
	bool

971 972 973
config CSRC_R4K
	bool

974 975 976
config CSRC_SB1250
	bool

977
config GPIO_TXX9
M
Michael Buesch 已提交
978
	select ARCH_REQUIRE_GPIOLIB
979 980
	bool

981
config FW_CFE
982 983
	bool

984
config ARCH_DMA_ADDR_T_64BIT
985
	def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
986

987 988 989 990
config DMA_MAYBE_COHERENT
	select DMA_NONCOHERENT
	bool

991
config DMA_COHERENT
L
Linus Torvalds 已提交
992 993
	bool

994 995
config DMA_NONCOHERENT
	bool
996
	select NEED_DMA_MAP_STATE
997

998
config NEED_DMA_MAP_STATE
L
Linus Torvalds 已提交
999 1000
	bool

1001
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
1002 1003
	bool

1004
config HOTPLUG_CPU
1005
	bool "Support for hot-pluggable CPUs"
1006
	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1007 1008 1009 1010 1011 1012 1013 1014
	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
1015 1016
	bool

L
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1017 1018
config I8259
	bool
A
Andrew Bresticker 已提交
1019
	select IRQ_DOMAIN
L
Linus Torvalds 已提交
1020 1021 1022 1023 1024 1025 1026

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1027 1028 1029
config MIPS_NILE4
	bool

1030 1031 1032
config SYNC_R4K
	bool

1033 1034 1035
config MIPS_MACHINE
	def_bool n

1036
config NO_IOPORT_MAP
1037 1038
	def_bool n

1039 1040 1041
config GENERIC_CSUM
	bool

1042 1043 1044
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1045
	select ISA_DMA_API
1046

1047 1048
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1049
	select GENERIC_ISA_DMA
1050

1051 1052 1053
config ISA_DMA_API
	bool

1054 1055 1056
config HOLES_IN_ZONE
	bool

1057
#
M
Masanari Iida 已提交
1058
# Endianness selection.  Sufficiently obscure so many users don't know what to
1059 1060 1061 1062
# 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
M
Masanari Iida 已提交
1063
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1064 1065
	help
	  Some MIPS machines can be configured for either little or big endian
1066
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1067
	  Linux distribution.  In general there is one preferred byteorder for a
1068
	  particular system but some systems are just as commonly used in the
1069
	  one or the other endianness.
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080

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

1081 1082 1083
config EXPORT_UASM
	bool

1084 1085 1086
config SYS_SUPPORTS_APM_EMULATION
	bool

1087 1088 1089 1090 1091
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1092

1093 1094 1095 1096 1097
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1098 1099 1100
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1101 1102
config IRQ_CPU
	bool
1103
	select IRQ_DOMAIN
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config IRQ_CPU_RM7K
	bool

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config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

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config IRQ_TXX9
	bool

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config IRQ_GT641XX
	bool

1120
config PCI_GT64XXX_PCI0
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	bool

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config NO_EXCEPT_FILL
	bool

1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
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

1138 1139 1140 1141 1142 1143 1144 1145 1146 1147
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
1148
	select SYS_SUPPORTS_MIPS16
1149 1150 1151 1152 1153 1154
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1155 1156 1157
config MIPS_SPRAM
	bool

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config SWAP_IO_SPACE
	bool

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config SGI_HAS_INDYDOG
	bool

1164 1165 1166
config SGI_HAS_HAL2
	bool

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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

1182
config FW_ARC32
1183 1184
	bool

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config FW_SNIPROM
1186 1187
	bool

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config BOOT_ELF32
	bool

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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

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config MIPS_L1_CACHE_SHIFT
	int
1205 1206 1207 1208
	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
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	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
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	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
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config ARC_MEMORY
	bool
1220
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
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	default y

config ARC_PROMLIB
	bool
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	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
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	default y

1228
config FW_ARC64
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	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
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.

1252 1253 1254 1255
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1256 1257 1258 1259
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

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	  It has an internal FPGA northbridge, which is compatible to
1261 1262 1263 1264 1265 1266
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1267
	select ARCH_REQUIRE_GPIOLIB
1268 1269 1270 1271 1272 1273 1274 1275
	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.

1276 1277 1278 1279 1280 1281 1282 1283
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.

1284 1285
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1286
	depends on SYS_HAS_CPU_MIPS32_R1
1287
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1289
	select CPU_SUPPORTS_HIGHMEM
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	help
1291
	  Choose this option to build a kernel for release 1 or later of the
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	  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"
1303
	depends on SYS_HAS_CPU_MIPS32_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1306
	select CPU_SUPPORTS_HIGHMEM
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	select CPU_SUPPORTS_MSA
1308
	select HAVE_KVM
1309
	help
1310
	  Choose this option to build a kernel for release 2 or later of the
1311 1312 1313 1314 1315
	  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.

1316 1317 1318 1319 1320 1321 1322
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
1323
	select GENERIC_CSUM
1324 1325 1326 1327 1328 1329 1330 1331
	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.

1332 1333
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1334
	depends on SYS_HAS_CPU_MIPS64_R1
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	select CPU_HAS_PREFETCH
1336 1337
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1338
	select CPU_SUPPORTS_HIGHMEM
1339
	select CPU_SUPPORTS_HUGEPAGES
1340 1341 1342 1343 1344 1345
	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.
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	  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"
1353
	depends on SYS_HAS_CPU_MIPS64_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1357
	select CPU_SUPPORTS_HIGHMEM
1358
	select CPU_SUPPORTS_HUGEPAGES
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	select CPU_SUPPORTS_MSA
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	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.
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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
1375
	select GENERIC_CSUM
1376 1377 1378 1379 1380 1381
	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.

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config CPU_R3000
	bool "R3000"
1384
	depends on SYS_HAS_CPU_R3000
1385
	select CPU_HAS_WB
1386
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	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"
1398
	depends on SYS_HAS_CPU_TX39XX
1399
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1403
	depends on SYS_HAS_CPU_VR41XX
1404 1405
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1407
	  The options selects support for the NEC VR4100 series of processors.
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	  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"
1414
	depends on SYS_HAS_CPU_R4300
1415 1416
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R4300-series processors.

config CPU_R4X00
	bool "R4x00"
1422
	depends on SYS_HAS_CPU_R4X00
1423 1424
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1425
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1432
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1434 1435
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1436
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1440
	depends on SYS_HAS_CPU_R5000
1441 1442
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1443
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1449
	depends on SYS_HAS_CPU_R5432
1450 1451
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1452
	select CPU_SUPPORTS_HUGEPAGES
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1454 1455 1456 1457 1458
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1459
	select CPU_SUPPORTS_HUGEPAGES
1460 1461 1462 1463
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_R6000
	bool "R6000"
1466
	depends on SYS_HAS_CPU_R6000
1467
	select CPU_SUPPORTS_32BIT_KERNEL
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	help
	  MIPS Technologies R6000 and R6000A series processors.  Note these
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	  processors are extremely rare and the support for them is incomplete.
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config CPU_NEVADA
	bool "RM52xx"
1474
	depends on SYS_HAS_CPU_NEVADA
1475 1476
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1477
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1483
	depends on SYS_HAS_CPU_R8000
1484
	select CPU_HAS_PREFETCH
1485
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R8000 processors.  Note these processors are
	  uncommon and the support for them is incomplete.

config CPU_R10000
	bool "R10000"
1492
	depends on SYS_HAS_CPU_R10000
1493
	select CPU_HAS_PREFETCH
1494 1495
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1497
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1503
	depends on SYS_HAS_CPU_RM7000
1504
	select CPU_HAS_PREFETCH
1505 1506
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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	select CPU_SUPPORTS_HIGHMEM
1508
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1512
	depends on SYS_HAS_CPU_SB1
1513 1514
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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	select CPU_SUPPORTS_HIGHMEM
1516
	select CPU_SUPPORTS_HUGEPAGES
1517
	select WEAK_ORDERING
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1519 1520
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1521
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1522 1523 1524 1525
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1526
	select CPU_SUPPORTS_HUGEPAGES
1527
	select USB_EHCI_BIG_ENDIAN_MMIO
1528
	select MIPS_L1_CACHE_SHIFT_7
1529 1530 1531 1532 1533 1534
	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.

1535 1536 1537 1538
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1539
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1540 1541 1542 1543 1544 1545 1546 1547
	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
1548
	select CPU_SUPPORTS_HIGHMEM
1549
	select CPU_HAS_PREFETCH
1550
	help
1551
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1552

1553 1554 1555 1556 1557 1558
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
1559
	select CPU_SUPPORTS_HUGEPAGES
1560 1561 1562 1563
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1564 1565 1566 1567 1568 1569 1570 1571 1572 1573

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
1574
	select CPU_MIPSR2
1575 1576
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1579 1580 1581
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1582
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
	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.

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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

1626 1627 1628 1629
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1630
	select HAVE_KERNEL_LZ4
1631
	select HAVE_KERNEL_LZMA
1632
	select HAVE_KERNEL_LZO
1633
	select HAVE_KERNEL_XZ
1634 1635 1636 1637 1638

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1639 1640 1641 1642 1643
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1644
	select CPU_SUPPORTS_HUGEPAGES
1645

1646 1647 1648 1649 1650 1651 1652
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1653
	select CPU_SUPPORTS_CPUFREQ
1654

1655
config CPU_BMIPS32_3300
1656
	select SMP_UP if SMP
1657
	bool
1658 1659 1660 1661 1662 1663 1664 1665

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1666
	select MIPS_L1_CACHE_SHIFT_6
1667 1668 1669 1670 1671 1672
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1673
	select MIPS_L1_CACHE_SHIFT_7
1674 1675
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1676

1677 1678 1679 1680
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ

1681
config SYS_HAS_CPU_LOONGSON2E
1682 1683
	bool

1684 1685
config SYS_HAS_CPU_LOONGSON2F
	bool
1686 1687
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1688
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1689

1690 1691 1692
config SYS_HAS_CPU_LOONGSON1B
	bool

1693 1694 1695 1696 1697 1698
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1699 1700 1701
config SYS_HAS_CPU_MIPS32_R3_5
	bool

1702 1703 1704
config SYS_HAS_CPU_MIPS32_R6
	bool

1705 1706 1707 1708 1709 1710
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1711 1712 1713
config SYS_HAS_CPU_MIPS64_R6
	bool

1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737
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

1738 1739 1740
config SYS_HAS_CPU_R5500
	bool

1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758
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

1759 1760 1761
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1762
config SYS_HAS_CPU_BMIPS
1763 1764
	bool

1765
config SYS_HAS_CPU_BMIPS32_3300
1766
	bool
1767
	select SYS_HAS_CPU_BMIPS
1768 1769 1770

config SYS_HAS_CPU_BMIPS4350
	bool
1771
	select SYS_HAS_CPU_BMIPS
1772 1773 1774

config SYS_HAS_CPU_BMIPS4380
	bool
1775
	select SYS_HAS_CPU_BMIPS
1776 1777 1778

config SYS_HAS_CPU_BMIPS5000
	bool
1779
	select SYS_HAS_CPU_BMIPS
1780

1781 1782 1783
config SYS_HAS_CPU_XLR
	bool

1784 1785 1786
config SYS_HAS_CPU_XLP
	bool

1787 1788 1789 1790 1791 1792
config MIPS_MALTA_PM
	depends on MIPS_MALTA
	depends on PCI
	bool
	default y

1793 1794 1795 1796
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1797 1798
config WEAK_ORDERING
	bool
1799 1800 1801 1802 1803 1804 1805

#
# 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
1806 1807 1808
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
1810 1811 1812
#
config CPU_MIPS32
	bool
1813
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1814 1815 1816

config CPU_MIPS64
	bool
1817
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1818 1819

#
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# These two indicate the revision of the architecture, either Release 1 or Release 2
1821 1822 1823 1824 1825 1826 1827
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1828
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1829
	select MIPS_SPRAM
1830

1831 1832 1833
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1834
	select MIPS_SPRAM
1835

1836 1837 1838
config EVA
	bool

1839 1840 1841 1842 1843 1844 1845 1846
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
1847 1848 1849 1850
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1851 1852
config CPU_SUPPORTS_HUGEPAGES
	bool
1853 1854
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1855 1856
config MIPS_PGD_C0_CONTEXT
	bool
1857
	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1858

1859 1860 1861 1862 1863
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1864
       default y if CPU_MIPSR1 || CPU_MIPSR2
1865

1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889
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

1890 1891
config KVM_GUEST
	bool "KVM Guest Kernel"
1892
	depends on BROKEN_ON_SMP
1893 1894 1895
	help
	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode

1896 1897
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
1898
	depends on KVM_GUEST
1899
	default 100
1900
	help
1901 1902 1903
	  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.
1904

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
1911
	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
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	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"
1920
	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
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	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
1924 1925
	  only on R8000 and cnMIPS processors.  Note that you will need a
	  suitable Linux distribution to support this.
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config PAGE_SIZE_16KB
	bool "16kB"
1929
	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
1933 1934
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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1936 1937 1938 1939 1940 1941 1942 1943 1944
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.

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config PAGE_SIZE_64KB
	bool "64kB"
1947
	depends on !CPU_R3000 && !CPU_TX39XX
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	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
1952
	  writing this option is still high experimental.
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endchoice

1956 1957
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
1958 1959 1960 1961 1962 1963
	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
1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
	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.

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config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

1987 1988 1989 1990 1991 1992 1993
#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

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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
2011
	bool
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2013 2014 2015 2016
config CPU_GENERIC_DUMP_TLB
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)

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config CPU_R4K_FPU
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

2021 2022 2023 2024
config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

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config MIPS_MT_SMP
2026
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2027
	depends on SYS_SUPPORTS_MULTITHREADING
2028
	select CPU_MIPSR2_IRQ_VI
2029
	select CPU_MIPSR2_IRQ_EI
2030
	select SYNC_R4K
2031
	select MIPS_GIC_IPI
2032
	select MIPS_MT
2033
	select SMP
2034
	select SMP_UP
2035 2036
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2037
	select MIPS_PERF_SHARED_TC_COUNTERS
2038
	help
2039 2040 2041 2042 2043
	  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
	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2044

2045 2046 2047
config MIPS_MT
	bool

2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059
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

2060 2061 2062
config SYS_SUPPORTS_MULTITHREADING
	bool

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config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
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2066
	depends on MIPS_MT_SMP
2067

2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080
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

2081 2082
config MIPS_VPE_LOADER
	bool "VPE loader support."
2083
	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2084 2085 2086 2087 2088 2089
	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.
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2091 2092 2093 2094 2095
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2096 2097 2098 2099 2100
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111
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
2112 2113 2114
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
2115

2116 2117 2118 2119 2120
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2121 2122 2123 2124 2125
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2126
config MIPS_CMP
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2127
	bool "MIPS CMP framework support (DEPRECATED)"
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2128
	depends on SYS_SUPPORTS_MIPS_CMP
2129
	select MIPS_GIC_IPI
2130
	select SMP
2131
	select SYNC_R4K
2132
	select SYS_SUPPORTS_SMP
2133 2134 2135
	select WEAK_ORDERING
	default n
	help
2136 2137 2138
	  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.
2139

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2140 2141 2142
	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
	  instead of this.

2143 2144 2145 2146 2147
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
	depends on SYS_SUPPORTS_MIPS_CPS
	select MIPS_CM
	select MIPS_CPC
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	select MIPS_CPS_PM if HOTPLUG_CPU
2149 2150 2151
	select MIPS_GIC_IPI
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2153 2154 2155 2156 2157 2158 2159 2160 2161
	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.

2162
config MIPS_CPS_PM
2163
	depends on MIPS_CPS
2164
	select MIPS_CPC
2165 2166
	bool

2167 2168 2169
config MIPS_GIC_IPI
	bool

2170 2171 2172
config MIPS_CM
	bool

2173 2174
config MIPS_CPC
	bool
2175

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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

2191

2192
config ARCH_PHYS_ADDR_T_64BIT
2193
       bool
2194

2195 2196 2197 2198 2199 2200 2201 2202
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

2203 2204
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2205
	bool "SmartMIPS"
2206 2207 2208 2209 2210 2211 2212 2213 2214
	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.

2215
config CPU_MICROMIPS
2216
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2217
	bool "microMIPS"
2218 2219 2220 2221
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2222 2223
endchoice

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config CPU_HAS_MSA
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2225
	bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
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2226
	depends on CPU_SUPPORTS_MSA
2227
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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2228 2229 2230
	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2231 2232 2233 2234 2235
	  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.
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	  If unsure, say Y.

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config CPU_HAS_WB
2240
	bool
2241

2242 2243 2244
config XKS01
	bool

2245 2246 2247
#
# Vectored interrupt mode is an R2 feature
#
2248
config CPU_MIPSR2_IRQ_VI
2249
	bool
2250

2251 2252 2253
#
# Extended interrupt mode is an R2 feature
#
2254
config CPU_MIPSR2_IRQ_EI
2255
	bool
2256

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

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#
# - 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.
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# - 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.
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#
config HIGHMEM
	bool "High Memory Support"
2290
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
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config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool
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2298 2299 2300
config SYS_SUPPORTS_SMARTMIPS
	bool

2301 2302 2303
config SYS_SUPPORTS_MICROMIPS
	bool

2304 2305 2306 2307 2308 2309 2310
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.

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config CPU_SUPPORTS_MSA
	bool

2314 2315
config ARCH_FLATMEM_ENABLE
	def_bool y
2316
	depends on !NUMA && !CPU_LOONGSON2
2317

2318 2319 2320 2321
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2322
	  Say Y to support efficient handling of discontiguous physical memory,
2323 2324 2325 2326
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

2327 2328
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2330

2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343
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

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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2349 2350
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
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	depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2352 2353 2354 2355 2356
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2357 2358
source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
2361 2362
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2364 2365
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2367
	  If you say N here, the kernel will run on uni- and multiprocessor
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	  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,
2370
	  uniprocessor machines. On a uniprocessor machine, the kernel
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	  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.

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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	  If you don't know what to do here, say N.

2381 2382 2383
config SMP_UP
	bool

2384 2385 2386
config SYS_SUPPORTS_MIPS_CMP
	bool

2387 2388 2389
config SYS_SUPPORTS_MIPS_CPS
	bool

2390 2391 2392
config SYS_SUPPORTS_SMP
	bool

2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407
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

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config NR_CPUS
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	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2412 2413 2414 2415 2416
	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
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	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
2421 2422
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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	  This is purely to save memory - each supported CPU adds
2425 2426 2427
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
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2429 2430 2431
config MIPS_PERF_SHARED_TC_COUNTERS
	bool

2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
	 Allows the configuration of the timer frequency.

	config HZ_48
2443
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502

	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

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source "kernel/Kconfig.preempt"
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2504

2505
config KEXEC
2506
	bool "Kexec system call"
2507 2508 2509
	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
2510
	  but it is independent of the system firmware.   And like a reboot
2511 2512
	  you can start any kernel with it, not just Linux.

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	  The name comes from the similarity to the exec system call.
2514 2515 2516

	  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
2517 2518 2519
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2520

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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).

2544 2545
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2546
	depends on PROC_FS
2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560
	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/<pid>/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.

2561
config MIPS_O32_FP64_SUPPORT
2562
	bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574
	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.

2575 2576 2577 2578 2579 2580 2581 2582
	  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.
2583

2584
config USE_OF
2585
	bool
2586
	select OF
2587
	select OF_EARLY_FLATTREE
2588
	select IRQ_DOMAIN
2589

2590 2591 2592
config BUILTIN_DTB
	bool

2593 2594
endmenu

2595 2596 2597 2598 2599 2600 2601 2602
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

2603 2604
source "init/Kconfig"

2605 2606
source "kernel/Kconfig.freezer"

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2607 2608
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

2609 2610
config HW_HAS_EISA
	bool
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2611 2612 2613 2614 2615 2616
config HW_HAS_PCI
	bool

config PCI
	bool "Support for PCI controller"
	depends on HW_HAS_PCI
2617
	select PCI_DOMAINS
2618
	select NO_GENERIC_PCI_IOPORT_MAP
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2619 2620 2621 2622 2623 2624
	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.

2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635
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.

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config PCI_DOMAINS
	bool

source "drivers/pci/Kconfig"

2641 2642
source "drivers/pci/pcie/Kconfig"

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#
# 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"
2653
	depends on HW_HAS_EISA
L
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2654
	select ISA
2655
	select GENERIC_ISA_DMA
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2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674
	---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
2675 2676 2677 2678 2679 2680 2681 2682
	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  TURBOchannel programming specifications are available
	  at:
	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
	  and:
	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
	  Linux driver support status is documented at:
	  <http://www.linux-mips.org/wiki/DECstation>
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2683 2684 2685 2686 2687

config MMU
	bool
	default y

2688 2689
config I8253
	bool
2690
	select CLKSRC_I8253
2691
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
2692
	select MIPS_EXTERNAL_TIMER
2693

2694 2695 2696
config ZONE_DMA
	bool

2697 2698 2699
config ZONE_DMA32
	bool

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2700 2701 2702 2703
source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

2704
config RAPIDIO
2705
	tristate "RapidIO support"
2706 2707 2708 2709 2710 2711 2712 2713
	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"

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2714 2715 2716 2717 2718 2719 2720 2721 2722 2723
endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
2724
	bool
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2725 2726 2727 2728

config COMPAT
	bool

2729 2730 2731
config SYSVIPC_COMPAT
	bool

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2732 2733
config MIPS32_O32
	bool "Kernel support for o32 binaries"
2734 2735 2736 2737 2738
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
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2739 2740 2741 2742 2743 2744 2745 2746 2747
	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"
2748
	depends on 64BIT
2749 2750 2751
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
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2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763
	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

2764 2765 2766 2767
endmenu

menu "Power management options"

W
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2768 2769
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
2770
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
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2771

J
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2772 2773
config ARCH_SUSPEND_POSSIBLE
	def_bool y
2774
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
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2775

2776
source "kernel/power/Kconfig"
R
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2777

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2778 2779
endmenu

2780 2781 2782 2783
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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2784 2785

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2786 2787
source "drivers/cpufreq/Kconfig"
endif
W
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2788

P
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2789 2790 2791 2792
source "drivers/cpuidle/Kconfig"

endmenu

2793 2794
source "net/Kconfig"

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2795 2796
source "drivers/Kconfig"

2797 2798
source "drivers/firmware/Kconfig"

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2799 2800 2801 2802 2803 2804 2805 2806 2807
source "fs/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
2808 2809

source "arch/mips/kvm/Kconfig"