kernel / arch / mips / Kconfig

config MIPS
	bool
	default y
	# Horrible source of confusion.  Die, die, die ...
	select EMBEDDED

mainmenu "Linux/MIPS Kernel Configuration"

menu "Machine selection"

config ZONE_DMA
	bool

choice
	prompt "System type"
	default SGI_IP22

config MACH_ALCHEMY
	bool "Alchemy processor based machines"

config BASLER_EXCITE
	bool "Basler eXcite smart camera"
	select DMA_COHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_CPU_RM7K
	select IRQ_CPU_RM9K
	select MIPS_RM9122
	select SYS_HAS_CPU_RM9000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	help
	  The eXcite is a smart camera platform manufactured by
	  Basler Vision Technologies AG.

config BASLER_EXCITE_PROTOTYPE
	bool "Support for pre-release units"
	depends on BASLER_EXCITE
	default n
	help
	  Pre-series (prototype) units are different from later ones in
	  some ways. Select this option if you have one of these. Please
	  note that a kernel built with this option selected will not be
	  able to run on normal units.

config MIPS_COBALT
	bool "Cobalt Server"
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select I8259
	select IRQ_CPU
	select PCI_GT64XXX_PCI0
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select GENERIC_HARDIRQS_NO__DO_IRQ

config MACH_DECSTATION
	bool "DECstations"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select NO_IOPORT
	select IRQ_CPU
	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
	help
	  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:

		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260

	  otherwise choose R3000.

config MACH_JAZZ
	bool "Jazz family of machines"
	select ARC
	select ARC32
	select ARCH_MAY_HAVE_PC_FDC
	select GENERIC_ISA_DMA
	select I8259
	select ISA
	select PCSPEAKER
	select SYS_HAS_CPU_R4X00
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_100HZ
	select GENERIC_HARDIRQS_NO__DO_IRQ
	help
	 This a family of machines based on the MIPS R4030 chipset which was
	 used by several vendors to build RISC/os and Windows NT workstations.
	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
	 Olivetti M700-10 workstations.

config LEMOTE_FULONG
	bool "Lemote Fulong mini-PC"
	select ARCH_SPARSEMEM_ENABLE
	select SYS_HAS_CPU_LOONGSON2
	select DMA_NONCOHERENT
	select BOOT_ELF32
	select BOARD_SCACHE
	select HAVE_STD_PC_SERIAL_PORT
	select HW_HAS_PCI
	select I8259
	select ISA
	select IRQ_CPU
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_HAS_EARLY_PRINTK
	select GENERIC_HARDIRQS_NO__DO_IRQ
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select CPU_HAS_WB
	help
	  Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
	  an FPGA northbridge

config MIPS_ATLAS
	bool "MIPS Atlas board"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select IRQ_CPU
	select HW_HAS_PCI
	select MIPS_BOARDS_GEN
	select MIPS_BONITO64
	select PCI_GT64XXX_PCI0
	select MIPS_MSC
	select RM7000_CPU_SCACHE
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
	select SYS_SUPPORTS_SMARTMIPS
	select GENERIC_HARDIRQS_NO__DO_IRQ
	help
	  This enables support for the MIPS Technologies Atlas evaluation
	  board.

config MIPS_MALTA
	bool "MIPS Malta board"
	select ARCH_MAY_HAVE_PC_FDC
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
	select IRQ_CPU
	select HW_HAS_PCI
	select I8259
	select MIPS_BOARDS_GEN
	select MIPS_BONITO64
	select MIPS_CPU_SCACHE
	select PCI_GT64XXX_PCI0
	select MIPS_MSC
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	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_MULTITHREADING
	select SYS_SUPPORTS_SMARTMIPS
	help
	  This enables support for the MIPS Technologies Malta evaluation
	  board.

config MIPS_SEAD
	bool "MIPS SEAD board"
	select IRQ_CPU
	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select MIPS_BOARDS_GEN
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_SMARTMIPS
	help
	  This enables support for the MIPS Technologies SEAD evaluation
	  board.

config MIPS_SIM
	bool 'MIPS simulator (MIPSsim)'
	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select IRQ_CPU
	select BOOT_RAW
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  This option enables support for MIPS Technologies MIPSsim software
	  emulator.

config MARKEINS
	bool "NEC EMMA2RH Mark-eins"
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_HAS_CPU_R5000
	help
	  This enables support for the R5432-based NEC Mark-eins
	  boards with R5500 CPU.

config MACH_VR41XX
	bool "NEC VR4100 series based machines"
	select SYS_HAS_CPU_VR41XX
	select GENERIC_HARDIRQS_NO__DO_IRQ

config PNX8550_JBS
	bool "Philips PNX8550 based JBS board"
	select PNX8550
	select SYS_SUPPORTS_LITTLE_ENDIAN

config PNX8550_STB810
	bool "Philips PNX8550 based STB810 board"
	select PNX8550
	select SYS_SUPPORTS_LITTLE_ENDIAN

config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
	depends on EXPERIMENTAL
	select DMA_NONCOHERENT
	select SWAP_IO_SPACE
	select NO_EXCEPT_FILL
	select BOOT_RAW
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	select IRQ_CPU
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
	help
	  This adds support for the PMC-Sierra family of Multi-Service
	  Processor System-On-A-Chips.  These parts include a number
	  of integrated peripherals, interfaces and DSPs in addition to
	  a variety of MIPS cores.

config PMC_YOSEMITE
	bool "PMC-Sierra Yosemite eval board"
	select DMA_COHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_CPU_RM7K
	select IRQ_CPU_RM9K
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_RM9000
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_KGDB
	select SYS_SUPPORTS_SMP
	help
	  Yosemite is an evaluation board for the RM9000x2 processor
	  manufactured by PMC-Sierra.

config QEMU
	bool "Qemu"
	select DMA_COHERENT
	select GENERIC_ISA_DMA
	select HAVE_STD_PC_SERIAL_PORT
	select I8259
	select ISA
	select PCSPEAKER
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select ARCH_SPARSEMEM_ENABLE
	select GENERIC_HARDIRQS_NO__DO_IRQ
	select NR_CPUS_DEFAULT_1
	select SYS_SUPPORTS_SMP
	help
	  Qemu is a software emulator which among other architectures also
	  can simulate a MIPS32 4Kc system.  This patch adds support for the
	  system architecture that currently is being simulated by Qemu.  It
	  will eventually be removed again when Qemu has the capability to
	  simulate actual MIPS hardware platforms.  More information on Qemu
	  can be found at http://www.linux-mips.org/wiki/Qemu.

config SGI_IP22
	bool "SGI IP22 (Indy/Indigo2)"
	select ARC
	select ARC32
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select HW_HAS_EISA
	select IP22_CPU_SCACHE
	select IRQ_CPU
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	help
	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
	  that runs on these, say Y here.

config SGI_IP27
	bool "SGI IP27 (Origin200/2000)"
	select ARC
	select ARC64
	select BOOT_ELF64
	select DMA_IP27
	select SYS_HAS_EARLY_PRINTK
	select HW_HAS_PCI
	select NR_CPUS_DEFAULT_64
	select PCI_DOMAINS
	select SYS_HAS_CPU_R10000
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_SMP
	select GENERIC_HARDIRQS_NO__DO_IRQ
	help
	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
	  workstations.  To compile a Linux kernel that runs on these, say Y
	  here.

config SGI_IP32
	bool "SGI IP32 (O2)"
	select ARC
	select ARC32
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
	select SYS_HAS_CPU_NEVADA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	help
	  If you want this kernel to run on SGI O2 workstation, say Y here.

config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1120
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1120
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_RHONE
	bool "Sibyte BCM91125E-Rhone"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
	select BOOT_ELF32
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_KGDB
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_PTSWARM
	bool "Sibyte BCM91250PT-PTSWARM"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
	select BOOT_ELF32
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_4
	select PCI_DOMAINS
	select SIBYTE_BCM1x80
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SNI_RM
	bool "SNI RM200/300/400"
	select ARC if CPU_LITTLE_ENDIAN
	select ARC32 if CPU_LITTLE_ENDIAN
	select ARCH_MAY_HAVE_PC_FDC
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
	select HW_HAS_EISA
	select HW_HAS_PCI
	select IRQ_CPU
	select I8259
	select ISA
	select PCSPEAKER
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000
	select R5000_CPU_SCACHE
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

config TOSHIBA_JMR3927
	bool "Toshiba JMR-TX3927 board"
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select MIPS_TX3927
	select IRQ_TXX9
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_TX39XX
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select GENERIC_HARDIRQS_NO__DO_IRQ

config TOSHIBA_RBTX4927
	bool "Toshiba RBTX49[23]7 board"
	select DMA_NONCOHERENT
	select HAS_TXX9_SERIAL
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_TXX9
	select I8259 if TOSHIBA_FPCIB0
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_TX49XX
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	select GENERIC_HARDIRQS_NO__DO_IRQ
	help
	  This Toshiba board is based on the TX4927 processor. Say Y here to
	  support this machine type

config TOSHIBA_RBTX4938
	bool "Toshiba RBTX4938 board"
	select DMA_NONCOHERENT
	select HAS_TXX9_SERIAL
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_TXX9
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_TX49XX
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	select GENERIC_HARDIRQS_NO__DO_IRQ
	select GENERIC_GPIO
	help
	  This Toshiba board is based on the TX4938 processor. Say Y here to
	  support this machine type

config WR_PPMC
	bool "Wind River PPMC board"
	select IRQ_CPU
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select PCI_GT64XXX_PCI0
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  This enables support for the Wind River MIPS32 4KC PPMC evaluation
	  board, which is based on GT64120 bridge chip.

endchoice

source "arch/mips/au1000/Kconfig"
source "arch/mips/jazz/Kconfig"
source "arch/mips/pmc-sierra/Kconfig"
source "arch/mips/sgi-ip27/Kconfig"
source "arch/mips/sibyte/Kconfig"
source "arch/mips/tx4927/Kconfig"
source "arch/mips/tx4938/Kconfig"
source "arch/mips/vr41xx/Kconfig"

endmenu

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

config GENERIC_FIND_NEXT_BIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config GENERIC_TIME
	bool
	default y

config SCHED_NO_NO_OMIT_FRAME_POINTER
	bool
	default y

config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	default n

#
# Select some configuration options automatically based on user selections.
#
config ARC
	bool

config ARCH_MAY_HAVE_PC_FDC
	bool

config BOOT_RAW
	bool

config DMA_COHERENT
	bool

config DMA_IP27
	bool

config DMA_IP32
	bool
	select DMA_NEED_PCI_MAP_STATE

config DMA_NONCOHERENT
	bool
	select DMA_NEED_PCI_MAP_STATE

config DMA_NEED_PCI_MAP_STATE
	bool

config EARLY_PRINTK
	bool "Early printk" if EMBEDDED && DEBUG_KERNEL
	depends on SYS_HAS_EARLY_PRINTK
	default y
	help
	  This option enables special console drivers which allow the kernel
	  to print messages very early in the bootup process.

	  This is useful for kernel debugging when your machine crashes very
	  early before the console code is initialized. For normal operation,
	  it is not recommended because it looks ugly on some machines and
	  doesn't cooperate with an X server. You should normally say N here,
	  unless you want to debug such a crash.

config SYS_HAS_EARLY_PRINTK
	bool

config HOTPLUG_CPU
	bool
	default n

config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

config MIPS_DISABLE_OBSOLETE_IDE
	bool

config NO_IOPORT
	def_bool n

config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n

config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
	select GENERIC_ISA_DMA

config GENERIC_GPIO
	bool

#
# Endianess selection.  Sufficiently obscure so many users don't know what to
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
	prompt "Endianess selection"
	help
	  Some MIPS machines can be configured for either little or big endian
	  byte order. These modes require different kernels and a different
	  Linux distribution.  In general there is one preferred byteorder for a
	  particular system but some systems are just as commonly used in the
	  one or the other endianness.

config CPU_BIG_ENDIAN
	bool "Big endian"
	depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
	bool "Little endian"
	depends on SYS_SUPPORTS_LITTLE_ENDIAN
	help

endchoice

config SYS_SUPPORTS_APM_EMULATION
	bool

config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool

config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

config IRQ_CPU_RM9K
	bool

config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

config IRQ_TXX9
	bool

config MIPS_BOARDS_GEN
	bool

config PCI_GT64XXX_PCI0
	bool

config NO_EXCEPT_FILL
	bool

config MIPS_TX3927
	bool
	select HAS_TXX9_SERIAL

config MIPS_RM9122
	bool
	select SERIAL_RM9000

config PNX8550
	bool
	select SOC_PNX8550

config SOC_PNX8550
	bool
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select GENERIC_HARDIRQS_NO__DO_IRQ
	select SYS_SUPPORTS_KGDB
	select GENERIC_GPIO

config SWAP_IO_SPACE
	bool

config EMMA2RH
	bool
	depends on MARKEINS
	default y

config SERIAL_RM9000
	bool

config ARC32
	bool

config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
	default "4" if MACH_DECSTATION
	default "7" if SGI_IP27 || SNI_RM
	default "4" if PMC_MSP4200_EVAL
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
	depends on SGI_IP22 || (SNI_RM && CPU_LITTLE_ENDIAN)

config ARC_MEMORY
	bool
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
	default y

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

config ARC64
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

config CPU_LOONGSON2
	bool "Loongson 2"
	depends on SYS_HAS_CPU_LOONGSON2
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
	depends on SYS_HAS_CPU_MIPS32_R1
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
	  Release 2 of the MIPS32 architecture is available since several
	  years so chances are you even have a MIPS32 Release 2 processor
	  in which case you should choose CPU_MIPS32_R2 instead for better
	  performance.

config CPU_MIPS32_R2
	bool "MIPS32 Release 2"
	depends on SYS_HAS_CPU_MIPS32_R2
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
	depends on SYS_HAS_CPU_MIPS64_R1
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
	  Release 2 of the MIPS64 architecture is available since several
	  years so chances are you even have a MIPS64 Release 2 processor
	  in which case you should choose CPU_MIPS64_R2 instead for better
	  performance.

config CPU_MIPS64_R2
	bool "MIPS64 Release 2"
	depends on SYS_HAS_CPU_MIPS64_R2
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.

config CPU_R3000
	bool "R3000"
	depends on SYS_HAS_CPU_R3000
	select CPU_HAS_WB
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
	depends on SYS_HAS_CPU_TX39XX
	select CPU_SUPPORTS_32BIT_KERNEL

config CPU_VR41XX
	bool "R41xx"
	depends on SYS_HAS_CPU_VR41XX
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	help
	  The options selects support for the NEC VR4100 series of processors.
	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4300
	bool "R4300"
	depends on SYS_HAS_CPU_R4300
	select CPU_HAS_LLSC
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	help
	  MIPS Technologies R4300-series processors.

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

config CPU_TX49XX
	bool "R49XX"
	depends on SYS_HAS_CPU_TX49XX
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL

config CPU_R5000
	bool "R5000"
	depends on SYS_HAS_CPU_R5000
	select CPU_HAS_LLSC
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
	depends on SYS_HAS_CPU_R5432
	select CPU_HAS_LLSC
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL

config CPU_R6000
	bool "R6000"
	depends on EXPERIMENTAL
	select CPU_HAS_LLSC
	depends on SYS_HAS_CPU_R6000
	select CPU_SUPPORTS_32BIT_KERNEL
	help
	  MIPS Technologies R6000 and R6000A series processors.  Note these
	  processors are extremely rare and the support for them is incomplete.

config CPU_NEVADA
	bool "RM52xx"
	depends on SYS_HAS_CPU_NEVADA
	select CPU_HAS_LLSC
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

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

config CPU_R10000
	bool "R10000"
	depends on SYS_HAS_CPU_R10000
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
	depends on SYS_HAS_CPU_RM7000
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM

config CPU_RM9000
	bool "RM9000"
	depends on SYS_HAS_CPU_RM9000
	select CPU_HAS_LLSC
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING

config CPU_SB1
	bool "SB1"
	depends on SYS_HAS_CPU_SB1
	select CPU_HAS_LLSC
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING

endchoice

config SYS_HAS_CPU_LOONGSON2
	bool

config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4300
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

config SYS_HAS_CPU_R5432
	bool

config SYS_HAS_CPU_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_RM9000
	bool

config SYS_HAS_CPU_SB1
	bool

#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
config WEAK_ORDERING
	bool

#
# CPU may reorder reads and writes beyond LL/SC
# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
#
config WEAK_REORDERING_BEYOND_LLSC
	bool
endmenu

#
# These two indicate any level of the MIPS32 and MIPS64 architecture
#
config CPU_MIPS32
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2

config CPU_MIPS64
	bool
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2

#
# These two indicate the revision of the architecture, either Release 1 or Release 2
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool

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

choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
	help
	 This option select the standard 4kB Linux page size.  On some
	 R3000-family processors this is the only available page size.  Using
	 4kB page size will minimize memory consumption and is therefore
	 recommended for low memory systems.

config PAGE_SIZE_8KB
	bool "8kB"
	depends on EXPERIMENTAL && CPU_R8000
	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on the R8000 processor.  Not that at the time of this writing
	  this option is still high experimental; there are also issues with
	  compatibility of user applications.

config PAGE_SIZE_16KB
	bool "16kB"
	depends on !CPU_R3000 && !CPU_TX39XX
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.

config PAGE_SIZE_64KB
	bool "64kB"
	depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
	  writing this option is still high experimental.

endchoice

config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

config R5000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config RM7000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config SIBYTE_DMA_PAGEOPS
	bool "Use DMA to clear/copy pages"
	depends on CPU_SB1
	help
	  Instead of using the CPU to zero and copy pages, use a Data Mover
	  channel.  These DMA channels are otherwise unused by the standard
	  SiByte Linux port.  Seems to give a small performance benefit.

config CPU_HAS_PREFETCH
	bool

choice
	prompt "MIPS MT options"

config MIPS_MT_DISABLED
	bool "Disable multithreading support."
	help
	  Use this option if your workload can't take advantage of
	  MIPS hardware multithreading support.  On systems that don't have
	  the option of an MT-enabled processor this option will be the only
	  option in this menu.

config MIPS_MT_SMP
	bool "Use 1 TC on each available VPE for SMP"
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CPU_MIPSR2_SRS
	select MIPS_MT
	select NR_CPUS_DEFAULT_2
	select SMP
	select SYS_SUPPORTS_SMP
	help
	  This is a kernel model which is also known a VSMP or lately
	  has been marketesed into SMVP.

config MIPS_MT_SMTC
	bool "SMTC: Use all TCs on all VPEs for SMP"
	depends on CPU_MIPS32_R2
	#depends on CPU_MIPS64_R2		# once there is hardware ...
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CPU_MIPSR2_SRS
	select MIPS_MT
	select NR_CPUS_DEFAULT_8
	select SMP
	select SYS_SUPPORTS_SMP
	help
	  This is a kernel model which is known a SMTC or lately has been
	  marketesed into SMVP.

endchoice

config MIPS_MT
	bool

config SYS_SUPPORTS_MULTITHREADING
	bool

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

config MIPS_VPE_LOADER
	bool "VPE loader support."
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CPU_MIPSR2_SRS
	select MIPS_MT
	help
	  Includes a loader for loading an elf relocatable object
	  onto another VPE and running it.

config MIPS_MT_SMTC_INSTANT_REPLAY
	bool "Low-latency Dispatch of Deferred SMTC IPIs"
	depends on MIPS_MT_SMTC && !PREEMPT
	default y
	help
	  SMTC pseudo-interrupts between TCs are deferred and queued
	  if the target TC is interrupt-inhibited (IXMT). In the first
	  SMTC prototypes, these queued IPIs were serviced on return
	  to user mode, or on entry into the kernel idle loop. The
	  INSTANT_REPLAY option dispatches them as part of local_irq_restore()
	  processing, which adds runtime overhead (hence the option to turn
	  it off), but ensures that IPIs are handled promptly even under
	  heavy I/O interrupt load.

config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
	default y
	help
	  To support multiple TC microthreads acting as "CPUs" within
	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
	  during interrupt handling. To support legacy drivers and interrupt
	  controller management code, SMTC has a "backstop" to track and
	  if necessary restore the interrupt mask. This has some performance
	  impact on interrupt service overhead. Disable it only if you know
	  what you are doing.

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.

# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
config MIPS_VPE_APSP_API
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help

config MIPS_APSP_KSPD
	bool "Enable KSPD"
	depends on MIPS_VPE_APSP_API
	default y
	help
	  KSPD is a kernel daemon that accepts syscall requests from the SP
	  side, actions them and returns the results. It also handles the
	  "exit" syscall notifying other kernel modules the SP program is
	  exiting.  You probably want to say yes here.

config SB1_PASS_1_WORKAROUNDS
	bool
	depends on CPU_SB1_PASS_1
	default y

config SB1_PASS_2_WORKAROUNDS
	bool
	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
	default y

config SB1_PASS_2_1_WORKAROUNDS
	bool
	depends on CPU_SB1 && CPU_SB1_PASS_2
	default y

config 64BIT_PHYS_ADDR
	bool

config CPU_HAS_LLSC
	bool

config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
	bool "Support for the SmartMIPS ASE"
	help
	  SmartMIPS is a extension of the MIPS32 architecture aimed at
	  increased security at both hardware and software level for
	  smartcards.  Enabling this option will allow proper use of the
	  SmartMIPS instructions by Linux applications.  However a kernel with
	  this option will not work on a MIPS core without SmartMIPS core.  If
	  you don't know you probably don't have SmartMIPS and should say N
	  here.

config CPU_HAS_WB
	bool

config 64BIT_CONTEXT
	bool "Save 64bit integer registers"
	depends on 32BIT && CPU_LOONGSON2
	help
	  Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
	  registers can still be accessed as 64bit, mainly for multimedia
	  instructions. We must have all 64bit save/restored to make sure
	  those instructions to get correct result.

#
# Vectored interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_VI
	bool

#
# Extended interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_EI
	bool

#
# Shadow registers are an R2 feature
#
config CPU_MIPSR2_SRS
	bool

config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

#
# Use the generic interrupt handling code in kernel/irq/:
#
config GENERIC_HARDIRQS
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

config IRQ_PER_CPU
	bool

#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
#   caches such as R3000, SB1, R7000 or those that look like they're virtually
#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
#   moment we protect the user and offer the highmem option only on machines
#   where it's known to be safe.  This will not offer highmem on a few systems
#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
#   indexed CPUs but we're playing safe.
# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
#   know they might have memory configurations that could make use of highmem
#   support.
#
config HIGHMEM
	bool "High Memory Support"
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM

config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_SMARTMIPS
	bool

config ARCH_FLATMEM_ENABLE
	def_bool y
	depends on !NUMA

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

config ARCH_SPARSEMEM_ENABLE
	bool
	select SPARSEMEM_STATIC

config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems disable this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

source "mm/Kconfig"

config SMP
	bool "Multi-Processing support"
	depends on SYS_SUPPORTS_SMP
	select IRQ_PER_CPU
	help
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below.

	  See also the <file:Documentation/smp.txt> and the SMP-HOWTO
	  available at <http://www.tldp.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config SYS_SUPPORTS_SMP
	bool

config NR_CPUS_DEFAULT_1
	bool

config NR_CPUS_DEFAULT_2
	bool

config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

config NR_CPUS
	int "Maximum number of CPUs (2-64)"
	range 1 64 if NR_CPUS_DEFAULT_1
	depends on SMP
	default "1" if NR_CPUS_DEFAULT_1
	default "2" if NR_CPUS_DEFAULT_2
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.

#
# Timer Interrupt Frequency Configuration
#

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

	config HZ_48
		bool "48 HZ" if SYS_SUPPORTS_48HZ

	config HZ_100
		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_128
		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_250
		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_256
		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1000
		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1024
		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ

endchoice

config SYS_SUPPORTS_48HZ
	bool

config SYS_SUPPORTS_100HZ
	bool

config SYS_SUPPORTS_128HZ
	bool

config SYS_SUPPORTS_250HZ
	bool

config SYS_SUPPORTS_256HZ
	bool

config SYS_SUPPORTS_1000HZ
	bool

config SYS_SUPPORTS_1024HZ
	bool

config SYS_SUPPORTS_ARBIT_HZ
	bool
	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

source "kernel/Kconfig.preempt"

config MIPS_INSANE_LARGE
	bool "Support for large 64-bit configurations"
	depends on CPU_R10000 && 64BIT
	help
	  MIPS R10000 does support a 44 bit / 16TB address space as opposed to
	  previous 64-bit processors which only supported 40 bit / 1TB. If you
	  need processes of more than 1TB virtual address space, say Y here.
	  This will result in additional memory usage, so it is not
	  recommended for normal users.

config KEXEC
	bool "Kexec system call (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
	  but it is independent of the system firmware.   And like a reboot
	  you can start any kernel with it, not just Linux.

	  The name comes from the similiarity to the exec system call.

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.  As of this writing the exact hardware interface is
	  strongly in flux, so no good recommendation can be made.

config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on PROC_FS
	default y
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via /proc/<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.

endmenu

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

source "init/Kconfig"

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

config HW_HAS_EISA
	bool
config HW_HAS_PCI
	bool

config PCI
	bool "Support for PCI controller"
	depends on HW_HAS_PCI
	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.

	  The PCI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>, contains valuable
	  information about which PCI hardware does work under Linux and which
	  doesn't.

config PCI_DOMAINS
	bool
	depends on PCI

source "drivers/pci/Kconfig"

#
# ISA support is now enabled via select.  Too many systems still have the one
# or other ISA chip on the board that users don't know about so don't expect
# users to choose the right thing ...
#
config ISA
	bool

config EISA
	bool "EISA support"
	depends on HW_HAS_EISA
	select ISA
	select GENERIC_ISA_DMA
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

source "drivers/eisa/Kconfig"

config TC
	bool "TURBOchannel support"
	depends on MACH_DECSTATION
	help
	  TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  Documentation on writing device drivers for TurboChannel
	  is available at:
	  <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.

#config ACCESSBUS
#	bool "Access.Bus support"
#	depends on TC

config MMU
	bool
	default y

config PCSPEAKER
	bool

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

config BUILD_ELF64
	bool "Use 64-bit ELF format for building"
	depends on 64BIT
	help
	  A 64-bit kernel is usually built using the 64-bit ELF binary object
	  format as it's one that allows arbitrary 64-bit constructs.  For
	  kernels that are loaded within the KSEG compatibility segments the
	  32-bit ELF format can optionally be used resulting in a somewhat
	  smaller binary, but this option is not explicitly supported by the
	  toolchain and since binutils 2.14 it does not even work at all.

	  Say Y to use the 64-bit format or N to use the 32-bit one.

	  If unsure say Y.

config BINFMT_IRIX
	bool "Include IRIX binary compatibility"
	depends on CPU_BIG_ENDIAN && 32BIT && BROKEN

config MIPS32_COMPAT
	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
	depends on 64BIT
	help
	  Select this option if you want Linux/MIPS 32-bit binary
	  compatibility. Since all software available for Linux/MIPS is
	  currently 32-bit you should say Y here.

config COMPAT
	bool
	depends on MIPS32_COMPAT
	default y

config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

config MIPS32_O32
	bool "Kernel support for o32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run o32 binaries.  These are pure
	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
	  existing binaries are in this format.

	  If unsure, say Y.

config MIPS32_N32
	bool "Kernel support for n32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run n32 binaries.  These are
	  64-bit binaries using 32-bit quantities for addressing and certain
	  data that would normally be 64-bit.  They are used in special
	  cases.

	  If unsure, say N.

config BINFMT_ELF32
	bool
	default y if MIPS32_O32 || MIPS32_N32

endmenu

menu "Power management options"

source "kernel/power/Kconfig"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/mips/oprofile/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"