riscv: hwprobe: Add support for probing V in RISCV_HWPROBE_KEY_IMA_EXT_0

Browse source

Probing kernel support for Vector extension is available now. This only
add detection for V only. Extenions like Zvfh, Zk are not in this scope.

Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Evan Green <evan@rivosinc.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20230605110724.21391-4-andy.chiu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

...

This commit is contained in:

Andy Chiu 2023-06-05 11:07:00 +00:00 • committed by Palmer Dabbelt

parent dc6667a4e7

commit 162e4df137

No known key found for this signature in database

GPG key ID: 2E1319F35FBB1889

3 changed files with 8 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

Documentation/riscv/hwprobe.rst

View file

1

arch/riscv/include/uapi/asm/hwprobe.h

View file

4

arch/riscv/kernel/sys_riscv.c

View file