# LoongArch CPU

choice
	prompt "Target Architecture Variant"
	default BR2_loongarch64_generic if BR2_ARCH_IS_64

config BR2_loongarch64_generic
	bool "Generic LoongArch 64-bit"
	depends on BR2_ARCH_IS_64
	help
	  Generic LoongArch 64-bit processor.

config BR2_loongarch64_v1_0
	bool "LoongArch64 ISA version 1.0"
	depends on BR2_ARCH_IS_64
	select BR2_ARCH_NEEDS_GCC_AT_LEAST_14
	help
	  LoongArch64 ISA version 1.0 processor.

config BR2_loongarch64_v1_1
	bool "LoongArch64 ISA version 1.1"
	depends on BR2_ARCH_IS_64
	select BR2_ARCH_NEEDS_GCC_AT_LEAST_14
	help
	  LoongArch64 ISA version 1.1 processor.

endchoice

choice
	prompt "FPU Type"
	default BR2_LOONGARCH_FPU_64

config BR2_LOONGARCH_FPU_64
	bool "64"
	help
	  Allow the use of hardware floating-point instructions for
	  32-bit and 64-bit operations.

config BR2_LOONGARCH_FPU_32
	bool "32"
	# Only supported by lp64s and lp64f ABIs which are marked as broken
	depends on BR2_BROKEN
	help
	  Allow the use of hardware floating-point instructions for
	  32-bit operations only.

config BR2_LOONGARCH_FPU_NONE
	bool "none"
	# Only supported by lp64s ABI which is marked as broken
	depends on BR2_BROKEN
	help
	  Prevent the use of hardware floating-point instructions.
endchoice

choice
	prompt "SIMD Type"
	default BR2_LOONGARCH_SIMD_NONE

config BR2_LOONGARCH_SIMD_NONE
	bool "none"
	help
	  Prevent the use of hardware SIMD instructions.

config BR2_LOONGARCH_SIMD_LSX
	bool "LSX"
	depends on BR2_LOONGARCH_FPU_64
	help
	  Enable generating instructions from the 128-bit LoongArch SIMD
	  Extension (LSX).

config BR2_LOONGARCH_SIMD_LASX
	bool "LASX"
	depends on BR2_LOONGARCH_FPU_64
	help
	  Enable generating instructions from the 256-bit LoongArch
	  Advanced SIMD Extension (LASX) and the 128-bit LoongArch
	  SIMD Extension (LSX).
endchoice

choice
	prompt "Target ABI"
	default BR2_LOONGARCH_ABI_LP64D if BR2_ARCH_IS_64 && BR2_LOONGARCH_FPU_64
	default BR2_LOONGARCH_ABI_LP64F if BR2_ARCH_IS_64 && BR2_LOONGARCH_FPU_32
	default BR2_LOONGARCH_ABI_LP64S if BR2_ARCH_IS_64 && BR2_LOONGARCH_SIMD_NONE

config BR2_LOONGARCH_ABI_LP64D
	bool "lp64d"
	depends on BR2_ARCH_IS_64
	depends on BR2_LOONGARCH_FPU_64

config BR2_LOONGARCH_ABI_LP64F
	bool "lp64f"
	depends on BR2_ARCH_IS_64
	# Failed to build host GCC initial, pending investigation
	depends on BR2_BROKEN
	depends on BR2_LOONGARCH_FPU_64 || BR2_LOONGARCH_FPU_32

config BR2_LOONGARCH_ABI_LP64S
	bool "lp64s"
	depends on BR2_ARCH_IS_64
	# GCC can't find libraries, pending investigation
	depends on BR2_BROKEN
endchoice

config BR2_ARCH
	default "loongarch64" if BR2_ARCH_IS_64

config BR2_NORMALIZED_ARCH
	default "loongarch"

config BR2_ENDIAN
	default "LITTLE"

config BR2_GCC_TARGET_ARCH
	default "loongarch64" if BR2_loongarch64_generic
	default "la64v1.0" if BR2_loongarch64_v1_0
	default "la64v1.1" if BR2_loongarch64_v1_1

config BR2_GCC_TARGET_FPU
	default "64" if BR2_LOONGARCH_FPU_64
	default "32" if BR2_LOONGARCH_FPU_32
	default "none" if BR2_LOONGARCH_FPU_NONE

config BR2_GCC_TARGET_SIMD
	default "lasx" if BR2_LOONGARCH_SIMD_LASX
	default "lsx" if BR2_LOONGARCH_SIMD_LSX
	default "none" if BR2_LOONGARCH_FPU_NONE

config BR2_GCC_TARGET_ABI
	default "lp64d" if BR2_LOONGARCH_ABI_LP64D
	default "lp64f" if BR2_LOONGARCH_ABI_LP64F
	default "lp64s" if BR2_LOONGARCH_ABI_LP64S

config BR2_READELF_ARCH_NAME
	default "LoongArch"

# vim: ft=kconfig
# -*- mode:kconfig; -*-