# Horrible source of confusion. Die, die, die ...
select EMBEDDED
-config MIPS64
- bool "64-bit kernel"
- help
- Select this option if you want to build a 64-bit kernel. You should
- only select this option if you have hardware that actually has a
- 64-bit processor and if your application will actually benefit from
- 64-bit processing, otherwise say N. You must say Y for kernels for
- SGI IP27 (Origin 200 and 2000) and SGI IP32 (O2). If in doubt say N.
-
-config 64BIT
- def_bool MIPS64
-
-config MIPS32
+# shouldn't it be per-subarchitecture?
+config ARCH_MAY_HAVE_PC_FDC
bool
- depends on MIPS64 = 'n'
default y
mainmenu "Linux/MIPS Kernel Configuration"
source "init/Kconfig"
+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
+
+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
+
+endmenu
+
menu "Machine selection"
config MACH_JAZZ
select GENERIC_ISA_DMA
select I8259
select ISA
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
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.
config MACH_VR41XX
bool "Support for NEC VR4100 series based machines"
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
config NEC_CMBVR4133
bool "Support for NEC CMB-VR4133"
The TANBAC Mbase(TB0226) is a MIPS-based platform manufactured by TANBAC.
Please refer to <http://www.tanbac.co.jp/> about Mbase.
+config TANBAC_TB0287
+ bool "Support for TANBAC Mini-ITX DIMM base(TB0287)"
+ depends on TANBAC_TB022X
+ help
+ The TANBAC Mini-ITX DIMM base(TB0287) is a MIPS-based platform manufactured by TANBAC.
+ Please refer to <http://www.tanbac.co.jp/> about Mini-ITX DIMM base.
+
config VICTOR_MPC30X
bool "Support for Victor MP-C303/304"
depends on MACH_VR41XX
config TOSHIBA_JMR3927
bool "Support for Toshiba JMR-TX3927 board"
- depends on MIPS32
select DMA_NONCOHERENT
select HW_HAS_PCI
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
config MIPS_COBALT
- bool "Support for Cobalt Server (EXPERIMENTAL)"
+ bool "Support for Cobalt Server"
depends on EXPERIMENTAL
select DMA_NONCOHERENT
select HW_HAS_PCI
select I8259
select IRQ_CPU
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
config MACH_DECSTATION
bool "Support for DECstations"
select BOOT_ELF32
select DMA_NONCOHERENT
+ select EARLY_PRINTK
select IRQ_CPU
- depends on MIPS32 || EXPERIMENTAL
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
---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
bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
depends on EXPERIMENTAL
select DMA_NONCOHERENT
+ select IRQ_CPU
select HW_HAS_PCI
select MIPS_GT64120
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
This is an evaluation board based on the Galileo GT-64120
single-chip system controller that contains a MIPS R5000 compatible
select MIPS_GT96100
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
This is an evaluation board based on the Galileo GT-96100 LAN/WAN
communications controllers containing a MIPS R5000 compatible core
bool "Support for Globespan IVR board"
select DMA_NONCOHERENT
select HW_HAS_PCI
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
help
This is an evaluation board built by Globespan to showcase thir
iVR (Internet Video Recorder) design. It utilizes a QED RM5231
select HW_HAS_PCI
select MIPS_GT64120
select R5000_CPU_SCACHE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
config PICVUE
tristate "PICVUE LCD display driver"
bool "Support for ITE 8172G board"
select DMA_NONCOHERENT
select HW_HAS_PCI
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
help
Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
with ATX form factor that utilizes a MIPS R5000 to work with its
select DMA_NONCOHERENT
select HW_HAS_PCI
select MIPS_GT64120
+ select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
- This enables support for the QED R5231-based MIPS Atlas evaluation
+ This enables support for the MIPS Technologies Atlas evaluation
board.
config MIPS_MALTA
select BOOT_ELF32
select HAVE_STD_PC_SERIAL_PORT
select DMA_NONCOHERENT
+ select IRQ_CPU
select GENERIC_ISA_DMA
select HW_HAS_PCI
select I8259
select MIPS_GT64120
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
- This enables support for the VR5000-based MIPS Malta evaluation
+ This enables support for the MIPS Technologies Malta evaluation
board.
config MIPS_SEAD
depends on EXPERIMENTAL
select IRQ_CPU
select DMA_NONCOHERENT
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ help
+ This enables support for the MIPS Technologies SEAD evaluation
+ board.
config MOMENCO_OCELOT
bool "Support for Momentum Ocelot board"
select MIPS_GT64120
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
The Ocelot is a MIPS-based Single Board Computer (SBC) made by
Momentum Computer <http://www.momenco.com/>.
select PCI_MARVELL
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
The Ocelot is a MIPS-based Single Board Computer (SBC) made by
Momentum Computer <http://www.momenco.com/>.
select PCI_MARVELL
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
The Ocelot is a MIPS-based Single Board Computer (SBC) made by
Momentum Computer <http://www.momenco.com/>.
select PCI_MARVELL
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
The Ocelot-3 is based off Discovery III System Controller and
PMC-Sierra Rm79000 core.
select PCI_MARVELL
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
Momentum Computer <http://www.momenco.com/>.
select IRQ_CPU_RM7K
select IRQ_CPU_RM9K
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
Yosemite is an evaluation board for the RM9000x2 processor
manufactured by PMC-Sierra
select IRQ_CPU
select I8259
select ISA
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
This enables support for the VR5000-based NEC DDB Vrc-5074
evaluation board.
select IRQ_CPU
select I8259
select ISA
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
help
This enables support for the R5432-based NEC DDB Vrc-5476
evaluation board.
select HW_HAS_PCI
select I8259
select IRQ_CPU
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
help
This enables support for the R5432-based NEC DDB Vrc-5477,
or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
select IP22_CPU_SCACHE
select IRQ_CPU
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
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
config SGI_IP27
bool "Support for SGI IP27 (Origin200/2000)"
- depends on MIPS64
select ARC
select ARC64
select DMA_IP27
select HW_HAS_PCI
select PCI_DOMAINS
+ select SYS_SUPPORTS_64BIT_KERNEL
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
config SGI_IP32
bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
- depends on MIPS64 && EXPERIMENTAL
+ depends on EXPERIMENTAL
select ARC
select ARC32
select BOOT_ELF32
select OWN_DMA
select DMA_IP32
select DMA_NONCOHERENT
+ select HAS_TXX9_SERIAL
select HW_HAS_PCI
select R5000_CPU_SCACHE
select RM7000_CPU_SCACHE
+ select SYS_SUPPORTS_64BIT_KERNEL
help
If you want this kernel to run on SGI O2 workstation, say Y here.
+config SOC_AU1200
+ bool
+ select SOC_AU1X00
+
config SOC_AU1X00
- depends on MIPS32
bool "Support for AMD/Alchemy Au1X00 SOCs"
+ select SYS_SUPPORTS_32BIT_KERNEL
choice
prompt "Au1X00 SOC Type"
config MIPS_PB1500
bool "PB1500 board"
depends on SOC_AU1500
- select DMA_COHERENT
+ select DMA_NONCOHERENT
select HW_HAS_PCI
config MIPS_PB1550
select HW_HAS_PCI
select MIPS_DISABLE_OBSOLETE_IDE
+config MIPS_PB1200
+ bool "AMD Alchemy PB1200 board"
+ select SOC_AU1200
+ select DMA_NONCOHERENT
+ select MIPS_DISABLE_OBSOLETE_IDE
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
config MIPS_DB1000
bool "DB1000 board"
depends on SOC_AU1000
config MIPS_DB1500
bool "DB1500 board"
depends on SOC_AU1500
- select DMA_COHERENT
+ select DMA_NONCOHERENT
select HW_HAS_PCI
select MIPS_DISABLE_OBSOLETE_IDE
bool "DB1550 board"
depends on SOC_AU1550
select HW_HAS_PCI
- select DMA_COHERENT
+ select DMA_NONCOHERENT
select MIPS_DISABLE_OBSOLETE_IDE
config MIPS_BOSPORUS
depends on SOC_AU1500
select DMA_NONCOHERENT
+config MIPS_DB1200
+ bool "AMD Alchemy DB1200 board"
+ select SOC_AU1200
+ select DMA_NONCOHERENT
+ select MIPS_DISABLE_OBSOLETE_IDE
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
config MIPS_MIRAGE
bool "Mirage board"
depends on SOC_AU1500
endchoice
-config SIBYTE_SB1xxx_SOC
- bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- select BOOT_ELF32
- select DMA_COHERENT
- select SWAP_IO_SPACE
-
-choice
- prompt "BCM1xxx SOC-based board"
- depends on SIBYTE_SB1xxx_SOC
- default SIBYTE_SWARM
- help
- Enable support for boards based on the SiByte line of SOCs
- from Broadcom. There are configurations for the known
- evaluation boards, or you can choose "Other" and add your
- own board support code.
-
-config SIBYTE_SWARM
- bool "BCM91250A-SWARM"
- select SIBYTE_SB1250
-
-config SIBYTE_SENTOSA
- bool "BCM91250E-Sentosa"
- select SIBYTE_SB1250
-
-config SIBYTE_RHONE
- bool "BCM91125E-Rhone"
- select SIBYTE_BCM1125H
-
-config SIBYTE_CARMEL
- bool "BCM91120x-Carmel"
- select SIBYTE_BCM1120
-
-config SIBYTE_PTSWARM
- bool "BCM91250PT-PTSWARM"
- select SIBYTE_SB1250
-
-config SIBYTE_LITTLESUR
- bool "BCM91250C2-LittleSur"
- select SIBYTE_SB1250
-
-config SIBYTE_CRHINE
- bool "BCM91120C-CRhine"
- select SIBYTE_BCM1120
-
-config SIBYTE_CRHONE
- bool "BCM91125C-CRhone"
- select SIBYTE_BCM1125
-
-config SIBYTE_UNKNOWN
- bool "Other"
-
-endchoice
-
-config SIBYTE_BOARD
- bool
- depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN
- default y
-
-choice
- prompt "BCM1xxx SOC Type"
- depends on SIBYTE_UNKNOWN
- default SIBYTE_UNK_BCM1250
- help
- Since you haven't chosen a known evaluation board from
- Broadcom, you must explicitly pick the SOC this kernel is
- targetted for.
-
-config SIBYTE_UNK_BCM1250
- bool "BCM1250"
- select SIBYTE_SB1250
-
-config SIBYTE_UNK_BCM1120
- bool "BCM1120"
- select SIBYTE_BCM1120
-
-config SIBYTE_UNK_BCM1125
- bool "BCM1125"
- select SIBYTE_BCM1125
-
-config SIBYTE_UNK_BCM1125H
- bool "BCM1125H"
- select SIBYTE_BCM1125H
-
-endchoice
-
-config SIBYTE_SB1250
- bool
- select HW_HAS_PCI
-
-config SIBYTE_BCM1120
- bool
- select SIBYTE_BCM112X
-
-config SIBYTE_BCM1125
- bool
- select HW_HAS_PCI
- select SIBYTE_BCM112X
-
-config SIBYTE_BCM1125H
- bool
- select HW_HAS_PCI
- select SIBYTE_BCM112X
-
-config SIBYTE_BCM112X
- bool
-
-choice
- prompt "SiByte SOC Stepping"
- depends on SIBYTE_SB1xxx_SOC
-
-config CPU_SB1_PASS_1
- bool "1250 Pass1"
- depends on SIBYTE_SB1250
- select CPU_HAS_PREFETCH
-
-config CPU_SB1_PASS_2_1250
- bool "1250 An"
- depends on SIBYTE_SB1250
- select CPU_SB1_PASS_2
- help
- Also called BCM1250 Pass 2
-
-config CPU_SB1_PASS_2_2
- bool "1250 Bn"
- depends on SIBYTE_SB1250
- select CPU_HAS_PREFETCH
- help
- Also called BCM1250 Pass 2.2
-
-config CPU_SB1_PASS_4
- bool "1250 Cn"
- depends on SIBYTE_SB1250
- select CPU_HAS_PREFETCH
- help
- Also called BCM1250 Pass 3
-
-config CPU_SB1_PASS_2_112x
- bool "112x Hybrid"
- depends on SIBYTE_BCM112X
- select CPU_SB1_PASS_2
-
-config CPU_SB1_PASS_3
- bool "112x An"
- depends on SIBYTE_BCM112X
- select CPU_HAS_PREFETCH
-
-endchoice
-
-config CPU_SB1_PASS_2
- bool
-
-config SIBYTE_HAS_LDT
- bool
- depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H)
- default y
-
-config SIMULATION
- bool "Running under simulation"
- depends on SIBYTE_SB1xxx_SOC
- help
- Build a kernel suitable for running under the GDB simulator.
- Primarily adjusts the kernel's notion of time.
-
-config SIBYTE_CFE
- bool "Booting from CFE"
- depends on SIBYTE_SB1xxx_SOC
- help
- Make use of the CFE API for enumerating available memory,
- controlling secondary CPUs, and possibly console output.
-
-config SIBYTE_CFE_CONSOLE
- bool "Use firmware console"
- depends on SIBYTE_CFE
- help
- Use the CFE API's console write routines during boot. Other console
- options (VT console, sb1250 duart console, etc.) should not be
- configured.
-
-config SIBYTE_STANDALONE
- bool
- depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
- default y
-
-config SIBYTE_STANDALONE_RAM_SIZE
- int "Memory size (in megabytes)"
- depends on SIBYTE_STANDALONE
- default "32"
-
-config SIBYTE_BUS_WATCHER
- bool "Support for Bus Watcher statistics"
- depends on SIBYTE_SB1xxx_SOC
- help
- Handle and keep statistics on the bus error interrupts (COR_ECC,
- BAD_ECC, IO_BUS).
-
-config SIBYTE_BW_TRACE
- bool "Capture bus trace before bus error"
- depends on SIBYTE_BUS_WATCHER
- help
- Run a continuous bus trace, dumping the raw data as soon as
- a ZBbus error is detected. Cannot work if ZBbus profiling
- is turned on, and also will interfere with JTAG-based trace
- buffer activity. Raw buffer data is dumped to console, and
- must be processed off-line.
-
-config SIBYTE_SB1250_PROF
- bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
- depends on SIBYTE_SB1xxx_SOC
-
-config SIBYTE_TBPROF
- bool "Support for ZBbus profiling"
- depends on SIBYTE_SB1xxx_SOC
-
config SNI_RM200_PCI
bool "Support for SNI RM200 PCI"
select ARC
select HW_HAS_PCI
select I8259
select ISA
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
help
The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
Nixdorf Informationssysteme (SNI), parent company of Pyramid
config TOSHIBA_RBTX4927
bool "Support for Toshiba TBTX49[23]7 board"
- depends on MIPS32
select DMA_NONCOHERENT
select HAS_TXX9_SERIAL
select HW_HAS_PCI
select I8259
select ISA
select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
help
This Toshiba board is based on the TX4927 processor. Say Y here to
support this machine type
bool "FPCIB0 Backplane Support"
depends on TOSHIBA_RBTX4927
+source "arch/mips/sgi-ip27/Kconfig"
+source "arch/mips/sibyte/Kconfig"
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
+ select HAS_TXX9_SERIAL
config GENERIC_CALIBRATE_DELAY
bool
default y
-config HAVE_DEC_LOCK
- bool
- default y
-
#
# Select some configuration options automatically based on user selections.
#
depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
default y
-config DMA_COHERENT
+config DMA_COHERENT
bool
-config DMA_IP27
+config DMA_IP27
bool
-config DMA_NONCOHERENT
+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
prompt "CPU type"
default CPU_R4X00
-config CPU_MIPS32
- bool "MIPS32"
+config CPU_MIPS32_R1
+ bool "MIPS32 Release 1"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ 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.
+ 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"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ 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.
-config CPU_MIPS64
- bool "MIPS64"
+config CPU_MIPS64_R1
+ bool "MIPS64 Release 1"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ 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"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ 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 MIPS32
+ select CPU_SUPPORTS_32BIT_KERNEL
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
config CPU_TX39XX
bool "R39XX"
- depends on MIPS32
+ select CPU_SUPPORTS_32BIT_KERNEL
config CPU_VR41XX
bool "R41xx"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
help
The options selects support for the NEC VR41xx series of processors.
Only choose this option if you have one of these processors as a
config CPU_R4300
bool "R4300"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
help
MIPS Technologies R4300-series processors.
config CPU_R4X00
bool "R4x00"
+ 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"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
config CPU_R5000
bool "R5000"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
help
MIPS Technologies R5000-series processors other than the Nevada.
config CPU_R6000
bool "R6000"
- depends on MIPS32 && EXPERIMENTAL
+ depends on EXPERIMENTAL
+ select CPU_SUPPORTS_32BIT_KERNEL
help
MIPS Technologies R6000 and R6000A series processors. Note these
processors are extremly rare and the support for them is incomplete.
config CPU_NEVADA
bool "RM52xx"
+ 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 MIPS64 && EXPERIMENTAL
+ depends on EXPERIMENTAL
+ 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"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
help
MIPS Technologies R10000-series processors.
config CPU_RM7000
bool "RM7000"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
config CPU_RM9000
bool "RM9000"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
config CPU_SB1
bool "SB1"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
endchoice
bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
+config MIPS_MT
+ bool "Enable MIPS MT"
+
+config MIPS_VPE_LOADER
+ bool "VPE loader support."
+ depends on MIPS_MT
+ help
+ Includes a loader for loading an elf relocatable object
+ onto another VPE and running it.
+
+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
+
config VTAG_ICACHE
bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
default y if CPU_SB1
config 64BIT_PHYS_ADDR
bool "Support for 64-bit physical address space"
- depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
+ depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32_R1 || CPU_MIPS64_R1) && 32BIT
config CPU_ADVANCED
bool "Override CPU Options"
- depends on MIPS32
+ depends on 32BIT
help
Saying yes here allows you to select support for various features
your CPU may or may not have. Most people should say N here.
config CPU_HAS_LLDSCD
bool "lld/scd Instructions available" if CPU_ADVANCED
- default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
+ default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32_R1
help
Say Y here if your CPU has the lld and scd instructions, the 64-bit
equivalents of ll and sc. Say Y here for better performance, N if
machines which require flushing of write buffers in software. Saying
Y is the safe option; N may result in kernel malfunction and crashes.
+menu "MIPSR2 Interrupt handling"
+ depends on CPU_MIPSR2 && CPU_ADVANCED
+
+config CPU_MIPSR2_IRQ_VI
+ bool "Vectored interrupt mode"
+ help
+ Vectored interrupt mode allowing faster dispatching of interrupts.
+ The board support code needs to be written to take advantage of this
+ mode. Compatibility code is included to allow the kernel to run on
+ a CPU that does not support vectored interrupts. It's safe to
+ say Y here.
+
+config CPU_MIPSR2_IRQ_EI
+ bool "External interrupt controller mode"
+ help
+ Extended interrupt mode takes advantage of an external interrupt
+ controller to allow fast dispatching from many possible interrupt
+ sources. Say N unless you know that external interrupt support is
+ required.
+
+config CPU_MIPSR2_SRS
+ bool "Make shadow set registers available for interrupt handlers"
+ depends on CPU_MIPSR2_IRQ_VI || CPU_MIPSR2_IRQ_EI
+ help
+ Allow the kernel to use shadow register sets for fast interrupts.
+ Interrupt handlers must be specially written to use shadow sets.
+ Say N unless you know that shadow register set upport is needed.
+endmenu
+
config CPU_HAS_SYNC
bool
depends on !CPU_R3000
#
config HIGHMEM
bool "High Memory Support"
- depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
+ depends on 32BIT && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
config ARCH_FLATMEM_ENABLE
def_bool y
This is purely to save memory - each supported CPU adds
approximately eight kilobytes to the kernel image.
-config PREEMPT
- bool "Preemptible Kernel"
- help
- This option reduces the latency of the kernel when reacting to
- real-time or interactive events by allowing a low priority process to
- be preempted even if it is in kernel mode executing a system call.
- This allows applications to run more reliably even when the system is
- under load.
+source "kernel/Kconfig.preempt"
config RTC_DS1742
bool "DS1742 BRAM/RTC support"
config MIPS_INSANE_LARGE
bool "Support for large 64-bit configurations"
- depends on CPU_R10000 && MIPS64
+ 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
config TRAD_SIGNALS
bool
- default y if MIPS32
+ default y if 32BIT
config BUILD_ELF64
bool "Use 64-bit ELF format for building"
- depends on MIPS64
+ 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
config BINFMT_IRIX
bool "Include IRIX binary compatibility"
- depends on !CPU_LITTLE_ENDIAN && MIPS32 && BROKEN
+ depends on !CPU_LITTLE_ENDIAN && 32BIT && BROKEN
config MIPS32_COMPAT
bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
- depends on MIPS64
+ depends on 64BIT
help
Select this option if you want Linux/MIPS 32-bit binary
compatibility. Since all software available for Linux/MIPS is
bool
default y if MIPS32_O32 || MIPS32_N32
+config SECCOMP
+ bool "Enable seccomp to safely compute untrusted bytecode"
+ depends on PROC_FS && BROKEN
+ 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.
+
config PM
bool "Power Management support (EXPERIMENTAL)"
depends on EXPERIMENTAL && MACH_AU1X00