TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

riscv: Fix toolchain vector detection

Browse Source 
A recent change to gcc flags rv64iv as no longer valid: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>
This commit is contained in:
Anton Blanchard
2024-08-19 00:11:31 +00:00
committed by Palmer Dabbelt
parent b686ecdeac
commit 5ba7a75a53
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/riscv/Kconfig
+2 -2
View File
@@ -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