aboutsummaryrefslogtreecommitdiff
path: root/arch/mips
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig50
1 files changed, 23 insertions, 27 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 87f0b79c6b1..ee5fbb02b28 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1067,6 +1067,7 @@ choice
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
@@ -1084,6 +1085,7 @@ config CPU_MIPS32_R1
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
@@ -1097,6 +1099,7 @@ config CPU_MIPS32_R2
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
@@ -1115,6 +1118,7 @@ config CPU_MIPS64_R1
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
@@ -1129,6 +1133,7 @@ config CPU_MIPS64_R2
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
@@ -1158,6 +1163,7 @@ config CPU_VR41XX
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
@@ -1166,6 +1172,7 @@ config CPU_R4300
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
@@ -1175,6 +1182,7 @@ config CPU_R4X00
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
@@ -1182,6 +1190,7 @@ config CPU_TX49XX
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
@@ -1190,12 +1199,14 @@ config CPU_R5000
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
@@ -1205,6 +1216,7 @@ config CPU_R6000
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
@@ -1214,6 +1226,7 @@ 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
@@ -1223,6 +1236,7 @@ config CPU_R8000
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
@@ -1233,6 +1247,7 @@ config CPU_R10000
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
@@ -1241,6 +1256,7 @@ config CPU_RM7000
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
@@ -1249,6 +1265,7 @@ config CPU_RM9000
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
@@ -1449,6 +1466,8 @@ choice
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
@@ -1514,38 +1533,15 @@ 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) && 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
@@ -1555,6 +1551,7 @@ config CPU_MIPSR2_IRQ_VI
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
@@ -1568,7 +1565,6 @@ config CPU_MIPSR2_SRS
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