From: Guo Ren <guo...@linux.alibaba.com>
This patch adds a new config option which could enable assembler's
vector feature.
Signed-off-by: Guo Ren <guo...@linux.alibaba.com>
---
arch/riscv/Kconfig | 9 +++++++++
arch/riscv/Makefile | 1 +
2 files changed, 10 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 74f82cf4f781..3b742d949a09 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -305,6 +305,15 @@ config FPU
If you don't know what to do here, say Y.
+config VECTOR
+ bool "VECTOR support"
+ default n
+ help
+ Say N here if you want to disable all vector related procedure
+ in the kernel.
+
+ If you don't know what to do here, say Y.
+
endmenu
menu "Kernel features"
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 957d064bead0..7c80c95582e3 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -46,6 +46,7 @@ riscv-march-aflags-$(CONFIG_ARCH_RV32I) :=
rv32ima
riscv-march-aflags-$(CONFIG_ARCH_RV64I) := rv64ima
riscv-march-aflags-$(CONFIG_FPU) := $(riscv-march-aflags-y)fd
riscv-march-aflags-$(CONFIG_RISCV_ISA_C) := $(riscv-march-aflags-y)c
+riscv-march-aflags-$(CONFIG_VECTOR) := $(riscv-march-aflags-y)v
KBUILD_CFLAGS += -march=$(riscv-march-cflags-y)
KBUILD_AFLAGS += -march=$(riscv-march-aflags-y)
--
2.26.2
