From: Anton Blanchard Date: Mon, 19 Aug 2024 00:11:31 +0000 (+0000) Subject: riscv: Fix toolchain vector detection X-Git-Tag: v6.11-rc7~13^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5ba7a75a53dffbf727e842b5847859bb482ac4aa;p=thirdparty%2Fkernel%2Flinux.git riscv: Fix toolchain vector detection A recent change to gcc flags rv64iv as no longer valid: cc1: sorry, unimplemented: Currently the 'V' implementation requires the 'M' extension and as a result vector support is disabled. Fix this by adding m to our toolchain vector detection code. Signed-off-by: Anton Blanchard Fixes: fa8e7cce55da ("riscv: Enable Vector code to be built") Link: https://lore.kernel.org/r/20240819001131.1738806-1-antonb@tenstorrent.com Signed-off-by: Palmer Dabbelt --- diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 0f3cd7c3a4360..939ea7f6a2289 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -552,8 +552,8 @@ config RISCV_ISA_SVPBMT config TOOLCHAIN_HAS_V bool default y - depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64iv) - depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32iv) + depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv) + depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv) depends on LLD_VERSION >= 140000 || LD_VERSION >= 23800 depends on AS_HAS_OPTION_ARCH