riscv: Fix toolchain vector detection

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[ Upstream commit 5ba7a75a53 ]

A recent change to gcc flags rv64iv as no longer valid: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: fa8e7cce55 ("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>

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Anton Blanchard 2024-08-19 00:11:31 +00:00 • committed by Greg Kroah-Hartman

parent b27ea9c96e

commit 8289dc916e

1 changed files with 2 additions and 2 deletions

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