arch/riscv/Kconfig.vendor

Source file repositories/reference/linux-study-clean/arch/riscv/Kconfig.vendor

File Facts

System
Linux kernel
Corpus path
arch/riscv/Kconfig.vendor
Extension
.vendor
Size
2021 bytes
Lines
72
Domain
Architecture Layer
Bucket
arch/riscv
Inferred role
Architecture Layer: arch/riscv
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

menu "Vendor extensions"

config RISCV_ISA_VENDOR_EXT
	bool

menu "Andes"
config RISCV_ISA_VENDOR_EXT_ANDES
	bool "Andes vendor extension support"
	select RISCV_ISA_VENDOR_EXT
	default y
	help
	  Say N here if you want to disable all Andes vendor extension
	  support. This will cause any Andes vendor extensions that are
	  requested by hardware probing to be ignored.

	  If you don't know what to do here, say Y.
endmenu

menu "MIPS"
config RISCV_ISA_VENDOR_EXT_MIPS
	bool "MIPS vendor extension support"
	select RISCV_ISA_VENDOR_EXT
	default y
	help
	  Say N here to disable detection of and support for all MIPS vendor
	  extensions. Without this option enabled, MIPS vendor extensions will
	  not be detected at boot and their presence not reported to userspace.

	  If you don't know what to do here, say Y.
endmenu

menu "SiFive"
config RISCV_ISA_VENDOR_EXT_SIFIVE
	bool "SiFive vendor extension support"
	select RISCV_ISA_VENDOR_EXT
	default y
	help
	  Say N here if you want to disable all SiFive vendor extension
	  support. This will cause any SiFive vendor extensions that are
	  requested by hardware probing to be ignored.

	  If you don't know what to do here, say Y.
endmenu

menu "T-Head"
config RISCV_ISA_VENDOR_EXT_THEAD
	bool "T-Head vendor extension support"
	select RISCV_ISA_VENDOR_EXT
	default y
	help
	  Say N here to disable detection of and support for all T-Head vendor
	  extensions. Without this option enabled, T-Head vendor extensions will
	  not be detected at boot and their presence not reported to userspace.

	  If you don't know what to do here, say Y.

config RISCV_ISA_XTHEADVECTOR
	bool "xtheadvector extension support"
	depends on RISCV_ISA_VENDOR_EXT_THEAD
	depends on RISCV_ISA_V
	depends on FPU
	default y
	help
	  Say N here if you want to disable all xtheadvector related procedures
	  in the kernel. This will disable vector for any T-Head board that
	  contains xtheadvector rather than the standard vector.

	  If you don't know what to do here, say Y.
endmenu

Annotation

Implementation Notes