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@@ -1067,6 +1067,7 @@ choice
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config CPU_MIPS32_R1
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bool "MIPS32 Release 1"
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depends on SYS_HAS_CPU_MIPS32_R1
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_HIGHMEM
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@@ -1084,6 +1085,7 @@ config CPU_MIPS32_R1
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config CPU_MIPS32_R2
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bool "MIPS32 Release 2"
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depends on SYS_HAS_CPU_MIPS32_R2
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_HIGHMEM
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@@ -1097,6 +1099,7 @@ config CPU_MIPS32_R2
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config CPU_MIPS64_R1
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bool "MIPS64 Release 1"
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depends on SYS_HAS_CPU_MIPS64_R1
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1115,6 +1118,7 @@ config CPU_MIPS64_R1
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config CPU_MIPS64_R2
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bool "MIPS64 Release 2"
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depends on SYS_HAS_CPU_MIPS64_R2
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1129,6 +1133,7 @@ config CPU_MIPS64_R2
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config CPU_R3000
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bool "R3000"
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depends on SYS_HAS_CPU_R3000
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+ select CPU_HAS_WB
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_HIGHMEM
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help
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@@ -1158,6 +1163,7 @@ config CPU_VR41XX
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config CPU_R4300
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bool "R4300"
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depends on SYS_HAS_CPU_R4300
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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help
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@@ -1166,6 +1172,7 @@ config CPU_R4300
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config CPU_R4X00
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bool "R4x00"
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depends on SYS_HAS_CPU_R4X00
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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help
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@@ -1175,6 +1182,7 @@ config CPU_R4X00
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config CPU_TX49XX
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bool "R49XX"
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depends on SYS_HAS_CPU_TX49XX
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1182,6 +1190,7 @@ config CPU_TX49XX
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config CPU_R5000
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bool "R5000"
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depends on SYS_HAS_CPU_R5000
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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help
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@@ -1190,12 +1199,14 @@ config CPU_R5000
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config CPU_R5432
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bool "R5432"
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depends on SYS_HAS_CPU_R5432
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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config CPU_R6000
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bool "R6000"
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depends on EXPERIMENTAL
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+ select CPU_HAS_LLSC
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depends on SYS_HAS_CPU_R6000
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select CPU_SUPPORTS_32BIT_KERNEL
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help
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@@ -1205,6 +1216,7 @@ config CPU_R6000
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config CPU_NEVADA
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bool "RM52xx"
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depends on SYS_HAS_CPU_NEVADA
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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help
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@@ -1214,6 +1226,7 @@ config CPU_R8000
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bool "R8000"
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depends on EXPERIMENTAL
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depends on SYS_HAS_CPU_R8000
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_64BIT_KERNEL
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help
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@@ -1223,6 +1236,7 @@ config CPU_R8000
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config CPU_R10000
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bool "R10000"
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depends on SYS_HAS_CPU_R10000
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1233,6 +1247,7 @@ config CPU_R10000
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config CPU_RM7000
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bool "RM7000"
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depends on SYS_HAS_CPU_RM7000
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1241,6 +1256,7 @@ config CPU_RM7000
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config CPU_RM9000
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bool "RM9000"
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depends on SYS_HAS_CPU_RM9000
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+ select CPU_HAS_LLSC
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select CPU_HAS_PREFETCH
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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@@ -1249,6 +1265,7 @@ config CPU_RM9000
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config CPU_SB1
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bool "SB1"
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depends on SYS_HAS_CPU_SB1
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+ select CPU_HAS_LLSC
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select CPU_SUPPORTS_32BIT_KERNEL
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select CPU_SUPPORTS_64BIT_KERNEL
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select CPU_SUPPORTS_HIGHMEM
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@@ -1449,6 +1466,8 @@ choice
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config MIPS_MT_SMTC
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bool "SMTC: Use all TCs on all VPEs for SMP"
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+ select CPU_MIPSR2_IRQ_VI
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+ select CPU_MIPSR2_SRS
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select SMP
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config MIPS_MT_SMP
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@@ -1514,38 +1533,15 @@ config 64BIT_PHYS_ADDR
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bool "Support for 64-bit physical address space"
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depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT
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-config CPU_ADVANCED
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- bool "Override CPU Options"
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- depends on 32BIT
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- help
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- Saying yes here allows you to select support for various features
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- your CPU may or may not have. Most people should say N here.
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-
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config CPU_HAS_LLSC
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- bool "ll/sc Instructions available" if CPU_ADVANCED
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- default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
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- help
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- MIPS R4000 series and later provide the Load Linked (ll)
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- and Store Conditional (sc) instructions. More information is
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- available at <http://www.go-ecs.com/mips/miptek1.htm>.
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-
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- Say Y here if your CPU has the ll and sc instructions. Say Y here
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- for better performance, N if you don't know. You must say Y here
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- for multiprocessor machines.
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+ bool
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config CPU_HAS_WB
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- bool "Writeback Buffer available" if CPU_ADVANCED
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- default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
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- help
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- Say N here for slightly better performance. You must say Y here for
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- machines which require flushing of write buffers in software. Saying
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- Y is the safe option; N may result in kernel malfunction and crashes.
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-
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-menu "MIPSR2 Interrupt handling"
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- depends on CPU_MIPSR2 && CPU_ADVANCED
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+ bool
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config CPU_MIPSR2_IRQ_VI
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bool "Vectored interrupt mode"
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+ depends on CPU_MIPSR2
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help
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Vectored interrupt mode allowing faster dispatching of interrupts.
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The board support code needs to be written to take advantage of this
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@@ -1555,6 +1551,7 @@ config CPU_MIPSR2_IRQ_VI
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config CPU_MIPSR2_IRQ_EI
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bool "External interrupt controller mode"
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+ depends on CPU_MIPSR2
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help
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Extended interrupt mode takes advantage of an external interrupt
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controller to allow fast dispatching from many possible interrupt
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@@ -1568,7 +1565,6 @@ config CPU_MIPSR2_SRS
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Allow the kernel to use shadow register sets for fast interrupts.
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Interrupt handlers must be specially written to use shadow sets.
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Say N unless you know that shadow register set upport is needed.
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-endmenu
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config CPU_HAS_SYNC
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bool
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Ralf Baechle