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| author | Andy Chiu <andy.chiu@sifive.com> | 2023-06-05 14:07:17 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-06-08 17:16:52 +0300 |
| commit | 50724efcb370c61c64f75614763fb411e087f70c (patch) | |
| tree | f016c4c6479f4f2e3d2fdd3e68bd635254a0e961 /arch/riscv/include/asm/processor.h | |
| parent | 0f4b82579716b12bb88257bd7ea80f25c791fb2c (diff) | |
| download | linux-50724efcb370c61c64f75614763fb411e087f70c.tar.xz | |
riscv: hwcap: change ELF_HWCAP to a function
Using a function is flexible to represent ELF_HWCAP. So the kernel may
encode hwcap reflecting supported hardware features just at the moment of
the start of each program.
This will be helpful when we introduce prctl/sysctl interface to control
per-process availability of Vector extension in following patches.
Programs started with V disabled should see V masked off in theirs
ELF_HWCAP.
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230605110724.21391-21-andy.chiu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/processor.h')
0 files changed, 0 insertions, 0 deletions