Kconfig 68.7 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_R5
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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
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	select SYS_SUPPORTS_HIGHMEM
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	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
539 540
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
541
	select SYS_SUPPORTS_BIG_ENDIAN
542
	select MIPS_L1_CACHE_SHIFT_7
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	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
549
	bool "SGI IP27 (Origin200/2000)"
550 551
	select FW_ARC
	select FW_ARC64
552
	select BOOT_ELF64
T
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553
	select DEFAULT_SGI_PARTITION
554
	select DMA_COHERENT
555
	select SYS_HAS_EARLY_PRINTK
L
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556
	select HW_HAS_PCI
557
	select NR_CPUS_DEFAULT_64
558
	select SYS_HAS_CPU_R10000
559
	select SYS_SUPPORTS_64BIT_KERNEL
560
	select SYS_SUPPORTS_BIG_ENDIAN
561
	select SYS_SUPPORTS_NUMA
562
	select SYS_SUPPORTS_SMP
563
	select MIPS_L1_CACHE_SHIFT_7
L
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564 565 566 567 568
	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
Thomas Bogendoerfer 已提交
569
config SGI_IP28
570
	bool "SGI IP28 (Indigo2 R10k)"
571 572
	select FW_ARC
	select FW_ARC64
T
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573 574 575 576 577 578 579 580 581 582 583 584
	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
585
	select SGI_HAS_HAL2
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586 587 588 589 590
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
591 592 593 594 595 596 597 598
	#
	# 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
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599 600
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
601
	select MIPS_L1_CACHE_SHIFT_7
T
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602 603 604 605
      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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config SGI_IP32
607
	bool "SGI IP32 (O2)"
608 609
	select FW_ARC
	select FW_ARC32
L
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610
	select BOOT_ELF32
611
	select CEVT_R4K
612
	select CSRC_R4K
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613 614
	select DMA_NONCOHERENT
	select HW_HAS_PCI
615
	select IRQ_CPU
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616 617
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
618 619 620
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
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621
	select SYS_HAS_CPU_NEVADA
622
	select SYS_SUPPORTS_64BIT_KERNEL
623 624
	select SYS_SUPPORTS_BIG_ENDIAN
	help
625
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
626

627 628
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
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629 630
	select BOOT_ELF32
	select DMA_COHERENT
631
	select SIBYTE_BCM1120
A
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632
	select SWAP_IO_SPACE
633
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
634 635 636
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

637 638
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
639
	select BOOT_ELF32
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640
	select DMA_COHERENT
641
	select SIBYTE_BCM1120
642
	select SWAP_IO_SPACE
643
	select SYS_HAS_CPU_SB1
644
	select SYS_SUPPORTS_BIG_ENDIAN
645
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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646

647 648
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
649 650
	select BOOT_ELF32
	select DMA_COHERENT
651
	select SIBYTE_BCM1125
652
	select SWAP_IO_SPACE
653
	select SYS_HAS_CPU_SB1
654
	select SYS_SUPPORTS_BIG_ENDIAN
655
	select SYS_SUPPORTS_HIGHMEM
656
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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657

658
config SIBYTE_RHONE
659
	bool "Sibyte BCM91125E-Rhone"
660 661 662 663
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
664
	select SYS_HAS_CPU_SB1
665 666
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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667

668 669
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
670
	select BOOT_ELF32
P
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671
	select DMA_COHERENT
672
	select HAVE_PATA_PLATFORM
673
	select SIBYTE_SB1250
674
	select SWAP_IO_SPACE
675
	select SYS_HAS_CPU_SB1
676
	select SYS_SUPPORTS_BIG_ENDIAN
677
	select SYS_SUPPORTS_HIGHMEM
P
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678
	select SYS_SUPPORTS_LITTLE_ENDIAN
679
	select ZONE_DMA32 if 64BIT
P
Pete Popov 已提交
680

681 682
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
683 684
	select BOOT_ELF32
	select DMA_COHERENT
685
	select HAVE_PATA_PLATFORM
686 687
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
688
	select SYS_HAS_CPU_SB1
689 690 691
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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692

693 694
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
695 696 697 698
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
699
	select SYS_HAS_CPU_SB1
700 701
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
702

703 704
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
705 706
	select BOOT_ELF32
	select DMA_COHERENT
707 708
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
709
	select SWAP_IO_SPACE
710
	select SYS_HAS_CPU_SB1
711
	select SYS_SUPPORTS_BIG_ENDIAN
R
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712
	select SYS_SUPPORTS_HIGHMEM
713
	select SYS_SUPPORTS_LITTLE_ENDIAN
714
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
715

716 717
config SNI_RM
	bool "SNI RM200/300/400"
718 719
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
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720
	select FW_SNIPROM if CPU_BIG_ENDIAN
721
	select ARCH_MAY_HAVE_PC_FDC
L
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722
	select BOOT_ELF32
723
	select CEVT_R4K
724
	select CSRC_R4K
T
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725
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
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726 727
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
728
	select HAVE_PCSPKR_PLATFORM
729
	select HW_HAS_EISA
L
Linus Torvalds 已提交
730
	select HW_HAS_PCI
731
	select IRQ_CPU
732
	select I8253
L
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733 734
	select I8259
	select ISA
735
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
736
	select SYS_HAS_CPU_R4X00
737
	select SYS_HAS_CPU_R5000
738
	select SYS_HAS_CPU_R10000
739
	select R5000_CPU_SCACHE
740
	select SYS_HAS_EARLY_PRINTK
741
	select SYS_SUPPORTS_32BIT_KERNEL
742
	select SYS_SUPPORTS_64BIT_KERNEL
743
	select SYS_SUPPORTS_BIG_ENDIAN
R
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744
	select SYS_SUPPORTS_HIGHMEM
745
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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746
	help
747 748
	  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
749 750 751
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

752 753
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
754

755 756
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
757

758 759 760 761 762 763 764 765 766 767 768 769
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
770
	select ARCH_REQUIRE_GPIOLIB
771
	select MIPS_L1_CACHE_SHIFT_4
772 773 774 775
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

776 777
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
778
	select CEVT_R4K
779
	select ARCH_PHYS_ADDR_T_64BIT
780 781 782
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
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783
	select EDAC_SUPPORT
784
	select SYS_SUPPORTS_HOTPLUG_CPU
785
	select SYS_HAS_EARLY_PRINTK
786
	select SYS_HAS_CPU_CAVIUM_OCTEON
787
	select SWAP_IO_SPACE
788
	select HW_HAS_PCI
D
David Daney 已提交
789
	select ZONE_DMA32
790
	select HOLES_IN_ZONE
791
	select ARCH_REQUIRE_GPIOLIB
792 793 794 795 796
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_16
797
	select BUILTIN_DTB
798 799 800 801 802 803 804 805 806 807 808 809 810
	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.

811 812 813 814 815 816 817 818 819 820
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
821
	select ARCH_PHYS_ADDR_T_64BIT
822 823 824 825 826 827 828
	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
829
	select ZONE_DMA32 if 64BIT
830 831
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
832 833
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
834 835 836 837
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

838 839 840 841 842 843 844 845 846
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
847
	select ARCH_PHYS_ADDR_T_64BIT
848 849 850 851 852 853 854 855
	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
856
	select ZONE_DMA32 if 64BIT
857 858
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
859
	select USE_OF
860 861
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
862 863 864 865
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884
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 ????

885
endchoice
L
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886

R
Ralf Baechle 已提交
887
source "arch/mips/alchemy/Kconfig"
888
source "arch/mips/ath25/Kconfig"
889
source "arch/mips/ath79/Kconfig"
890
source "arch/mips/bcm47xx/Kconfig"
891
source "arch/mips/bcm63xx/Kconfig"
892
source "arch/mips/jazz/Kconfig"
893
source "arch/mips/jz4740/Kconfig"
894
source "arch/mips/lantiq/Kconfig"
895
source "arch/mips/lasat/Kconfig"
R
Ralf Baechle 已提交
896
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
897
source "arch/mips/ralink/Kconfig"
898
source "arch/mips/sgi-ip27/Kconfig"
899
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
900
source "arch/mips/txx9/Kconfig"
901
source "arch/mips/vr41xx/Kconfig"
902
source "arch/mips/cavium-octeon/Kconfig"
903
source "arch/mips/loongson/Kconfig"
904
source "arch/mips/loongson1/Kconfig"
905
source "arch/mips/netlogic/Kconfig"
906
source "arch/mips/paravirt/Kconfig"
907

908 909
endmenu

L
Linus Torvalds 已提交
910 911 912 913 914 915 916
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

917 918 919 920 921 922 923 924
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

925 926 927 928
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
929 930 931 932
config GENERIC_CALIBRATE_DELAY
	bool
	default y

933
config SCHED_OMIT_FRAME_POINTER
934 935 936
	bool
	default y

L
Linus Torvalds 已提交
937 938 939
#
# Select some configuration options automatically based on user selections.
#
940
config FW_ARC
L
Linus Torvalds 已提交
941 942
	bool

943 944 945
config ARCH_MAY_HAVE_PC_FDC
	bool

M
Marc St-Jean 已提交
946 947 948
config BOOT_RAW
	bool

949 950 951
config CEVT_BCM1480
	bool

952 953 954
config CEVT_DS1287
	bool

955 956 957
config CEVT_GT641XX
	bool

958 959 960
config CEVT_R4K
	bool

961 962 963
config CEVT_SB1250
	bool

964 965 966
config CEVT_TXX9
	bool

967 968 969
config CSRC_BCM1480
	bool

970 971 972
config CSRC_IOASIC
	bool

973 974 975
config CSRC_R4K
	bool

976 977 978
config CSRC_SB1250
	bool

979
config GPIO_TXX9
M
Michael Buesch 已提交
980
	select ARCH_REQUIRE_GPIOLIB
981 982
	bool

983
config FW_CFE
984 985
	bool

986
config ARCH_DMA_ADDR_T_64BIT
987
	def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
988

989 990 991 992
config DMA_MAYBE_COHERENT
	select DMA_NONCOHERENT
	bool

993
config DMA_COHERENT
L
Linus Torvalds 已提交
994 995
	bool

996 997
config DMA_NONCOHERENT
	bool
998
	select NEED_DMA_MAP_STATE
999

1000
config NEED_DMA_MAP_STATE
L
Linus Torvalds 已提交
1001 1002
	bool

1003
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
1004 1005
	bool

1006
config HOTPLUG_CPU
1007
	bool "Support for hot-pluggable CPUs"
1008
	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
1009 1010 1011 1012 1013 1014 1015 1016
	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
1017 1018
	bool

L
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1019 1020
config I8259
	bool
A
Andrew Bresticker 已提交
1021
	select IRQ_DOMAIN
L
Linus Torvalds 已提交
1022 1023 1024 1025 1026 1027 1028

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1029 1030 1031
config MIPS_NILE4
	bool

1032 1033 1034
config SYNC_R4K
	bool

1035 1036 1037
config MIPS_MACHINE
	def_bool n

1038
config NO_IOPORT_MAP
1039 1040
	def_bool n

1041 1042 1043
config GENERIC_CSUM
	bool

1044 1045 1046
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1047
	select ISA_DMA_API
1048

1049 1050
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1051
	select GENERIC_ISA_DMA
1052

1053 1054 1055
config ISA_DMA_API
	bool

1056 1057 1058
config HOLES_IN_ZONE
	bool

1059
#
M
Masanari Iida 已提交
1060
# Endianness selection.  Sufficiently obscure so many users don't know what to
1061 1062 1063 1064
# 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
1065
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1066 1067
	help
	  Some MIPS machines can be configured for either little or big endian
1068
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1069
	  Linux distribution.  In general there is one preferred byteorder for a
1070
	  particular system but some systems are just as commonly used in the
1071
	  one or the other endianness.
1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082

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

1083 1084 1085
config EXPORT_UASM
	bool

1086 1087 1088
config SYS_SUPPORTS_APM_EMULATION
	bool

1089 1090 1091 1092 1093
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1094

1095 1096 1097 1098 1099
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1100 1101 1102
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
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config IRQ_CPU
	bool
1105
	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

1122
config PCI_GT64XXX_PCI0
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	bool

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config NO_EXCEPT_FILL
	bool

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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

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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
1150
	select SYS_SUPPORTS_MIPS16
1151 1152 1153 1154 1155 1156
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1157 1158 1159
config MIPS_SPRAM
	bool

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config SWAP_IO_SPACE
	bool

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config SGI_HAS_INDYDOG
	bool

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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

1184
config FW_ARC32
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	bool

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config FW_SNIPROM
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	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
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	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
1222
	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

1230
config FW_ARC64
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	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

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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.

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config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1258 1259 1260 1261
	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
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	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1269
	select ARCH_REQUIRE_GPIOLIB
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	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.

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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.

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config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1288
	depends on SYS_HAS_CPU_MIPS32_R1
1289
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1291
	select CPU_SUPPORTS_HIGHMEM
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	help
1293
	  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"
1305
	depends on SYS_HAS_CPU_MIPS32_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1308
	select CPU_SUPPORTS_HIGHMEM
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	select CPU_SUPPORTS_MSA
1310
	select HAVE_KVM
1311
	help
1312
	  Choose this option to build a kernel for release 2 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.

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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
1325
	select GENERIC_CSUM
1326 1327 1328 1329 1330 1331 1332 1333
	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.

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config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1336
	depends on SYS_HAS_CPU_MIPS64_R1
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1340
	select CPU_SUPPORTS_HIGHMEM
1341
	select CPU_SUPPORTS_HUGEPAGES
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	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"
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	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
1359
	select CPU_SUPPORTS_HIGHMEM
1360
	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
1377
	select GENERIC_CSUM
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	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"
1386
	depends on SYS_HAS_CPU_R3000
1387
	select CPU_HAS_WB
1388
	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"
1400
	depends on SYS_HAS_CPU_TX39XX
1401
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1405
	depends on SYS_HAS_CPU_VR41XX
1406 1407
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1409
	  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"
1416
	depends on SYS_HAS_CPU_R4300
1417 1418
	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"
1424
	depends on SYS_HAS_CPU_R4X00
1425 1426
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1427
	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"
1434
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1436 1437
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1438
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1442
	depends on SYS_HAS_CPU_R5000
1443 1444
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1445
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1451
	depends on SYS_HAS_CPU_R5432
1452 1453
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1454
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1461
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_R6000
	bool "R6000"
1468
	depends on SYS_HAS_CPU_R6000
1469
	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"
1476
	depends on SYS_HAS_CPU_NEVADA
1477 1478
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1479
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1485
	depends on SYS_HAS_CPU_R8000
1486
	select CPU_HAS_PREFETCH
1487
	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"
1494
	depends on SYS_HAS_CPU_R10000
1495
	select CPU_HAS_PREFETCH
1496 1497
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1499
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1505
	depends on SYS_HAS_CPU_RM7000
1506
	select CPU_HAS_PREFETCH
1507 1508
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1510
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1514
	depends on SYS_HAS_CPU_SB1
1515 1516
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1518
	select CPU_SUPPORTS_HUGEPAGES
1519
	select WEAK_ORDERING
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1521 1522
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1523
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1524 1525 1526 1527
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1528
	select CPU_SUPPORTS_HUGEPAGES
1529
	select USB_EHCI_BIG_ENDIAN_MMIO
1530
	select MIPS_L1_CACHE_SHIFT_7
1531 1532 1533 1534 1535 1536
	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.

1537 1538 1539 1540
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1541
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1542 1543 1544 1545 1546 1547 1548 1549
	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
1550
	select CPU_SUPPORTS_HIGHMEM
1551
	select CPU_HAS_PREFETCH
1552
	help
1553
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1554

1555 1556 1557 1558 1559 1560
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
1561
	select CPU_SUPPORTS_HUGEPAGES
1562 1563 1564 1565
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
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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
1576
	select CPU_MIPSR2
1577 1578
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1581 1582 1583
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1584
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600
	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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config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
	depends on CPU_MIPS32_R2
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from release 5 such as
	  support for Extended Physical Addressing (XPA).

config CPU_MIPS32_R5_XPA
	bool "Extended Physical Addressing (XPA)"
	depends on CPU_MIPS32_R5_FEATURES
	depends on !EVA
	depends on !PAGE_SIZE_4KB
	depends on SYS_SUPPORTS_HIGHMEM
	select XPA
	select HIGHMEM
	select ARCH_PHYS_ADDR_T_64BIT
	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  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

1655 1656 1657 1658
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1659
	select HAVE_KERNEL_LZ4
1660
	select HAVE_KERNEL_LZMA
1661
	select HAVE_KERNEL_LZO
1662
	select HAVE_KERNEL_XZ
1663 1664 1665 1666 1667

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1668 1669 1670 1671 1672
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1673
	select CPU_SUPPORTS_HUGEPAGES
1674

1675 1676 1677 1678 1679 1680 1681
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1682
	select CPU_SUPPORTS_CPUFREQ
1683

1684
config CPU_BMIPS32_3300
1685
	select SMP_UP if SMP
1686
	bool
1687 1688 1689 1690 1691 1692 1693 1694

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1695
	select MIPS_L1_CACHE_SHIFT_6
1696 1697 1698 1699 1700 1701
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1702
	select MIPS_L1_CACHE_SHIFT_7
1703 1704
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1705

1706 1707 1708 1709
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ

1710
config SYS_HAS_CPU_LOONGSON2E
1711 1712
	bool

1713 1714
config SYS_HAS_CPU_LOONGSON2F
	bool
1715 1716
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1717
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1718

1719 1720 1721
config SYS_HAS_CPU_LOONGSON1B
	bool

1722 1723 1724 1725 1726 1727
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1728 1729 1730
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool

1734 1735 1736
config SYS_HAS_CPU_MIPS32_R6
	bool

1737 1738 1739 1740 1741 1742
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1743 1744 1745
config SYS_HAS_CPU_MIPS64_R6
	bool

1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769
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

1770 1771 1772
config SYS_HAS_CPU_R5500
	bool

1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790
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

1791 1792 1793
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1794
config SYS_HAS_CPU_BMIPS
1795 1796
	bool

1797
config SYS_HAS_CPU_BMIPS32_3300
1798
	bool
1799
	select SYS_HAS_CPU_BMIPS
1800 1801 1802

config SYS_HAS_CPU_BMIPS4350
	bool
1803
	select SYS_HAS_CPU_BMIPS
1804 1805 1806

config SYS_HAS_CPU_BMIPS4380
	bool
1807
	select SYS_HAS_CPU_BMIPS
1808 1809 1810

config SYS_HAS_CPU_BMIPS5000
	bool
1811
	select SYS_HAS_CPU_BMIPS
1812

1813 1814 1815
config SYS_HAS_CPU_XLR
	bool

1816 1817 1818
config SYS_HAS_CPU_XLP
	bool

1819 1820 1821 1822 1823 1824
config MIPS_MALTA_PM
	depends on MIPS_MALTA
	depends on PCI
	bool
	default y

1825 1826 1827 1828
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1829 1830
config WEAK_ORDERING
	bool
1831 1832 1833 1834 1835 1836 1837

#
# 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
1838 1839 1840
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
1842 1843 1844
#
config CPU_MIPS32
	bool
1845
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
1846 1847 1848

config CPU_MIPS64
	bool
1849
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
1850 1851

#
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# These two indicate the revision of the architecture, either Release 1 or Release 2
1853 1854 1855 1856 1857 1858 1859
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1860
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1861
	select MIPS_SPRAM
1862

1863 1864 1865
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
1866
	select MIPS_SPRAM
1867

1868 1869 1870
config EVA
	bool

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config XPA
	bool

1874 1875 1876 1877 1878 1879 1880 1881
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
1882 1883 1884 1885
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1886 1887
config CPU_SUPPORTS_HUGEPAGES
	bool
1888 1889
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1890 1891
config MIPS_PGD_C0_CONTEXT
	bool
1892
	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1893

1894 1895 1896 1897 1898
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1899
       default y if CPU_MIPSR1 || CPU_MIPSR2
1900

1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924
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

1925 1926
config KVM_GUEST
	bool "KVM Guest Kernel"
1927
	depends on BROKEN_ON_SMP
1928 1929 1930
	help
	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode

1931 1932
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
1933
	depends on KVM_GUEST
1934
	default 100
1935
	help
1936 1937 1938
	  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.
1939

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
1946
	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"
1955
	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
1959 1960
	  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"
1964
	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
1968 1969
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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1971 1972 1973 1974 1975 1976 1977 1978 1979
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"
1982
	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
1987
	  writing this option is still high experimental.
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endchoice

1991 1992
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
1993 1994 1995 1996 1997 1998
	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
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
	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

2022 2023 2024 2025 2026 2027 2028
#
# 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
2046
	bool
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2048 2049 2050 2051
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)

2056 2057 2058 2059
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
2061
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2062
	depends on SYS_SUPPORTS_MULTITHREADING
2063
	select CPU_MIPSR2_IRQ_VI
2064
	select CPU_MIPSR2_IRQ_EI
2065
	select SYNC_R4K
2066
	select MIPS_GIC_IPI
2067
	select MIPS_MT
2068
	select SMP
2069
	select SMP_UP
2070 2071
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2072
	select MIPS_PERF_SHARED_TC_COUNTERS
2073
	help
2074 2075 2076 2077 2078
	  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>.
2079

2080 2081 2082
config MIPS_MT
	bool

2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094
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

2095 2096 2097
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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2101
	depends on MIPS_MT_SMP
2102

2103 2104 2105 2106 2107 2108 2109
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
2110
	  default. You can enable it using the 'mipsr2emu' kernel option.
2111 2112 2113 2114 2115
	  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

2116 2117
config MIPS_VPE_LOADER
	bool "VPE loader support."
2118
	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
2119 2120 2121 2122 2123 2124
	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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2126 2127 2128 2129 2130
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2131 2132 2133 2134 2135
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146
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
2147 2148 2149
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
2150

2151 2152 2153 2154 2155
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2156 2157 2158 2159 2160
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2161
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
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	depends on SYS_SUPPORTS_MIPS_CMP
2164
	select MIPS_GIC_IPI
2165
	select SMP
2166
	select SYNC_R4K
2167
	select SYS_SUPPORTS_SMP
2168 2169 2170
	select WEAK_ORDERING
	default n
	help
2171 2172 2173
	  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.
2174

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2175 2176 2177
	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
	  instead of this.

2178 2179 2180 2181 2182
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
2184 2185 2186
	select MIPS_GIC_IPI
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2188 2189 2190 2191 2192 2193 2194 2195 2196
	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.

2197
config MIPS_CPS_PM
2198
	depends on MIPS_CPS
2199
	select MIPS_CPC
2200 2201
	bool

2202 2203 2204
config MIPS_GIC_IPI
	bool

2205 2206 2207
config MIPS_CM
	bool

2208 2209
config MIPS_CPC
	bool
2210

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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

2226

2227
config ARCH_PHYS_ADDR_T_64BIT
2228
       bool
2229

2230 2231 2232 2233 2234 2235 2236 2237
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

2238 2239
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2240
	bool "SmartMIPS"
2241 2242 2243 2244 2245 2246 2247 2248 2249
	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.

2250
config CPU_MICROMIPS
2251
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2252
	bool "microMIPS"
2253 2254 2255 2256
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2257 2258
endchoice

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config CPU_HAS_MSA
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	bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
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	depends on CPU_SUPPORTS_MSA
2262
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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2263 2264 2265
	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2266 2267 2268 2269 2270
	  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
2275
	bool
2276

2277 2278 2279
config XKS01
	bool

2280 2281 2282
#
# Vectored interrupt mode is an R2 feature
#
2283
config CPU_MIPSR2_IRQ_VI
2284
	bool
2285

2286 2287 2288
#
# Extended interrupt mode is an R2 feature
#
2289
config CPU_MIPSR2_IRQ_EI
2290
	bool
2291

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309
#
# 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"
2325
	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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2333 2334 2335
config SYS_SUPPORTS_SMARTMIPS
	bool

2336 2337 2338
config SYS_SUPPORTS_MICROMIPS
	bool

2339 2340 2341 2342 2343 2344 2345
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

2349 2350
config ARCH_FLATMEM_ENABLE
	def_bool y
2351
	depends on !NUMA && !CPU_LOONGSON2
2352

2353 2354 2355 2356
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2357
	  Say Y to support efficient handling of discontiguous physical memory,
2358 2359 2360 2361
	  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.

2362 2363
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2365

2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378
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

2384 2385
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)
2387 2388 2389 2390 2391
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2392 2393
source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
2396 2397
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2399 2400
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2402
	  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,
2405
	  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.

2416 2417 2418
config SMP_UP
	bool

2419 2420 2421
config SYS_SUPPORTS_MIPS_CMP
	bool

2422 2423 2424
config SYS_SUPPORTS_MIPS_CPS
	bool

2425 2426 2427
config SYS_SUPPORTS_SMP
	bool

2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
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
2447 2448 2449 2450 2451
	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
2456 2457
	  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
2460 2461 2462
	  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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2464 2465 2466
config MIPS_PERF_SHARED_TC_COUNTERS
	bool

2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477
#
# Timer Interrupt Frequency Configuration
#

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

	config HZ_48
2478
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537

	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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2539

2540
config KEXEC
2541
	bool "Kexec system call"
2542 2543 2544
	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
2545
	  but it is independent of the system firmware.   And like a reboot
2546 2547
	  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.
2549 2550 2551

	  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
2552 2553 2554
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2555

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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).

2579 2580
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2581
	depends on PROC_FS
2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595
	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.

2596
config MIPS_O32_FP64_SUPPORT
2597
	bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609
	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.

2610 2611 2612 2613 2614 2615 2616 2617
	  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.
2618

2619
config USE_OF
2620
	bool
2621
	select OF
2622
	select OF_EARLY_FLATTREE
2623
	select IRQ_DOMAIN
2624

2625 2626 2627
config BUILTIN_DTB
	bool

2628 2629
endmenu

2630 2631 2632 2633 2634 2635 2636 2637
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

2638 2639
source "init/Kconfig"

2640 2641
source "kernel/Kconfig.freezer"

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

2644 2645
config HW_HAS_EISA
	bool
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config HW_HAS_PCI
	bool

config PCI
	bool "Support for PCI controller"
	depends on HW_HAS_PCI
2652
	select PCI_DOMAINS
2653
	select NO_GENERIC_PCI_IOPORT_MAP
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	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.

2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670
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"

2676 2677
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"
2688
	depends on HW_HAS_EISA
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2689
	select ISA
2690
	select GENERIC_ISA_DMA
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2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709
	---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
2710 2711 2712 2713 2714 2715 2716 2717
	  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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config MMU
	bool
	default y

2723 2724
config I8253
	bool
2725
	select CLKSRC_I8253
2726
	select CLKEVT_I8253
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2727
	select MIPS_EXTERNAL_TIMER
2728

2729 2730 2731
config ZONE_DMA
	bool

2732 2733 2734
config ZONE_DMA32
	bool

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2735 2736 2737 2738
source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

2739
config RAPIDIO
2740
	tristate "RapidIO support"
2741 2742 2743 2744 2745 2746 2747 2748
	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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endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
2759
	bool
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config COMPAT
	bool

2764 2765 2766
config SYSVIPC_COMPAT
	bool

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2767 2768
config MIPS32_O32
	bool "Kernel support for o32 binaries"
2769 2770 2771 2772 2773
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
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	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"
2783
	depends on 64BIT
2784 2785 2786
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
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	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

2799 2800 2801 2802
endmenu

menu "Power management options"

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config ARCH_HIBERNATION_POSSIBLE
	def_bool y
2805
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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2806

J
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config ARCH_SUSPEND_POSSIBLE
	def_bool y
2809
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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2811
source "kernel/power/Kconfig"
R
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2813 2814
endmenu

2815 2816 2817 2818
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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2819 2820

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2821 2822
source "drivers/cpufreq/Kconfig"
endif
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2823

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2824 2825 2826 2827
source "drivers/cpuidle/Kconfig"

endmenu

2828 2829
source "net/Kconfig"

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2830 2831
source "drivers/Kconfig"

2832 2833
source "drivers/firmware/Kconfig"

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source "fs/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
2843 2844

source "arch/mips/kvm/Kconfig"