config MIPS
bool
default y
- select ARCH_BINFMT_ELF_STATE
+ select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
+ select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
select CPU_PM if CPU_IDLE
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64 if !64BIT
select HAVE_FUNCTION_TRACER
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
+ select HAVE_IOREMAP_PROT
select HAVE_IRQ_EXIT_ON_IRQ_STACK
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_KPROBES
select HAVE_KRETPROBES
- select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select RTC_LIB
select SYSCTL_EXCEPTION_TRACE
select VIRT_TO_BUS
- select NO_BOOTMEM
menu "Machine selection"
select BOOT_RAW
select BUILTIN_DTB
select CEVT_R4K
- select CSRC_R4K
select CLKSRC_MIPS_GIC
select COMMON_CLK
+ select CSRC_R4K
select DMA_MAYBE_COHERENT
select GENERIC_ISA_DMA
select HAVE_PCSPKR_PLATFORM
- select IRQ_MIPS_CPU
- select MIPS_GIC
select HW_HAS_PCI
select I8253
select I8259
+ select IRQ_MIPS_CPU
+ select LIBFDT
select MIPS_BONITO64
select MIPS_CPU_SCACHE
+ select MIPS_GIC
select MIPS_L1_CACHE_SHIFT_6
- select PCI_GT64XXX_PCI0
select MIPS_MSC
+ select PCI_GT64XXX_PCI0
select SMP_UP if SMP
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_MICROMIPS
+ select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_MIPS_CMP
select SYS_SUPPORTS_MIPS_CPS
- select SYS_SUPPORTS_MIPS16
select SYS_SUPPORTS_MULTITHREADING
+ select SYS_SUPPORTS_RELOCATABLE
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_VPE_LOADER
select SYS_SUPPORTS_ZBOOT
- select SYS_SUPPORTS_RELOCATABLE
select USE_OF
- select LIBFDT
select ZONE_DMA32 if 64BIT
- select BUILTIN_DTB
- select LIBFDT
help
This enables support for the MIPS Technologies Malta evaluation
board.
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
select ZONE_DMA32 if 64BIT
+ select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
config SIBYTE_LITTLESUR
bool "Sibyte BCM91250C2-LittleSur"
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
+ select ZONE_DMA32 if 64BIT
config SIBYTE_SENTOSA
bool "Sibyte BCM91250E-Sentosa"
select SYS_HAS_CPU_SB1
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
config SIBYTE_BIGSUR
bool "Sibyte BCM91480B-BigSur"
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
select ZONE_DMA32 if 64BIT
+ select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
config SNI_RM
bool "SNI RM200/300/400"
default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
#
-# These two indicate the revision of the architecture, either Release 1 or Release 2
+# These indicate the revision of the architecture
#
config CPU_MIPSR1
bool
select MIPS_CRC_SUPPORT
select MIPS_SPRAM
+config TARGET_ISA_REV
+ int
+ default 1 if CPU_MIPSR1
+ default 2 if CPU_MIPSR2
+ default 6 if CPU_MIPSR6
+ default 0
+ help
+ Reflects the ISA revision being targeted by the kernel build. This
+ is effectively the Kconfig equivalent of MIPS_ISA_REV.
+
config EVA
bool
bool
default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
+config MIPS_FP_SUPPORT
+ bool "Floating Point support" if EXPERT
+ default y
+ help
+ Select y to include support for floating point in the kernel
+ including initialization of FPU hardware, FP context save & restore
+ and emulation of an FPU where necessary. Without this support any
+ userland program attempting to use floating point instructions will
+ receive a SIGILL.
+
+ If you know that your userland will not attempt to use floating point
+ instructions then you can say n here to shrink the kernel a little.
+
+ If unsure, say y.
+
+config CPU_R2300_FPU
+ bool
+ depends on MIPS_FP_SUPPORT
+ default y if CPU_R3000 || CPU_TX39XX
+
config CPU_R4K_FPU
bool
- default y if !(CPU_R3000 || CPU_TX39XX)
+ depends on MIPS_FP_SUPPORT
+ default y if !CPU_R2300_FPU
config CPU_R4K_CACHE_TLB
bool
config MIPSR2_TO_R6_EMULATOR
bool "MIPS R2-to-R6 emulator"
depends on CPU_MIPSR6
+ depends on MIPS_FP_SUPPORT
default y
help
Choose this option if you want to run non-R6 MIPS userland code.
config CPU_HAS_MSA
bool "Support for the MIPS SIMD Architecture"
depends on CPU_SUPPORTS_MSA
+ depends on MIPS_FP_SUPPORT
depends on 64BIT || MIPS_O32_FP64_SUPPORT
help
MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
If unsure, say Y. Only embedded should say N here.
config MIPS_O32_FP64_SUPPORT
- bool "Support for O32 binaries using 64-bit FP"
+ bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
depends on 32BIT || MIPS32_O32
help
When this is enabled, the kernel will support use of 64-bit floating
projects / linux-2.6-block.git / blobdiff