6.10-stable review patch. If anyone has any objections, please let me know.
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From: Anton Blanchard antonb@tenstorrent.com
[ Upstream commit 5ba7a75a53dffbf727e842b5847859bb482ac4aa ]
A recent change to gcc flags rv64iv as no longer valid: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 antonb@tenstorrent.com 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 palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 0525ee2d63c7..006232b67b46 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -545,8 +545,8 @@ 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