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| author | Clément Léger <cleger@rivosinc.com> | 2023-12-20 16:57:21 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-01-09 20:12:29 -0800 |
| commit | 154a3706122978eeb34d8223d49285ed4f3c61fa (patch) | |
| tree | 00a1fb20960c5ac54437997b4375c2afb2b0dc6a /Documentation/arch | |
| parent | 188a2122c8274b64a739544b1bcfd30e30aed5dd (diff) | |
| download | linux-154a3706122978eeb34d8223d49285ed4f3c61fa.tar.gz | |
riscv: hwprobe: export Zacas ISA extension
Export Zacas ISA extension through hwprobe.
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Link: https://lore.kernel.org/r/20231220155723.684081-6-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/riscv/hwprobe.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst index 10bd7b170118e8..bff68004ad43d2 100644 --- a/Documentation/arch/riscv/hwprobe.rst +++ b/Documentation/arch/riscv/hwprobe.rst @@ -165,6 +165,10 @@ The following keys are defined: defined in the RISC-V ISA manual starting from commit 5618fb5a216b ("Ztso is now ratified.") + * :c:macro:`RISCV_HWPROBE_EXT_ZACAS`: The Zacas extension is supported as + defined in the Atomic Compare-and-Swap (CAS) instructions manual starting + from commit 5059e0ca641c ("update to ratified"). + * :c:macro:`RISCV_HWPROBE_KEY_CPUPERF_0`: A bitmask that contains performance information about the selected set of processors. |