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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
config MIPS_MT_SMTC
bool "SMTC: Use all TCs on all VPEs for SMP"
+ select CPU_MIPSR2_IRQ_VI
+ select CPU_MIPSR2_SRS
select SMP
config MIPS_MT_SMP
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) && 32BIT
-config CPU_ADVANCED
- bool "Override CPU Options"
- 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_LLSC
- bool "ll/sc Instructions available" if CPU_ADVANCED
- default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
- help
- MIPS R4000 series and later provide the Load Linked (ll)
- and Store Conditional (sc) instructions. More information is
- available at <http://www.go-ecs.com/mips/miptek1.htm>.
-
- Say Y here if your CPU has the ll and sc instructions. Say Y here
- for better performance, N if you don't know. You must say Y here
- for multiprocessor machines.
+ bool
config CPU_HAS_WB
- bool "Writeback Buffer available" if CPU_ADVANCED
- default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
- help
- Say N here for slightly better performance. You must say Y here for
- 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
+ bool
config CPU_MIPSR2_IRQ_VI
bool "Vectored interrupt mode"
+ depends on CPU_MIPSR2
help
Vectored interrupt mode allowing faster dispatching of interrupts.
The board support code needs to be written to take advantage of this
config CPU_MIPSR2_IRQ_EI
bool "External interrupt controller mode"
+ depends on CPU_MIPSR2
help
Extended interrupt mode takes advantage of an external interrupt
controller to allow fast dispatching from many possible interrupt
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