diff options
| author | Mark Brown <broonie@kernel.org> | 2022-10-17 16:25:19 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-11-09 17:54:53 +0000 |
| commit | d12aada8dfb030f7df8ec0bb0ce4bb01a2ab3944 (patch) | |
| tree | fff23b11b546fb5e262e5144a8cfd0ae51e2b053 /Documentation/arm64 | |
| parent | 989d37fc3d976f6bfa3f1da484f8f22c57c21c0c (diff) | |
arm64/hwcap: Add support for SVE 2.1
FEAT_SVE2p1 introduces a number of new SVE instructions. Since there is no
new architectural state added kernel support is simply a new hwcap which
lets userspace know that the feature is supported.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20221017152520.1039165-6-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.rst | 3 | ||||
| -rw-r--r-- | Documentation/arm64/sve.rst | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst index a82b2cdff680..6fed84f935df 100644 --- a/Documentation/arm64/elf_hwcaps.rst +++ b/Documentation/arm64/elf_hwcaps.rst @@ -281,6 +281,9 @@ HWCAP2_CSSC HWCAP2_RPRFM Functionality implied by ID_AA64ISAR2_EL1.RPRFM == 0b0001. +HWCAP2_SVE2P1 + Functionality implied by ID_AA64ZFR0_EL1.SVEver == 0b0010. + 4. Unused AT_HWCAP bits ----------------------- diff --git a/Documentation/arm64/sve.rst b/Documentation/arm64/sve.rst index f338ee2df46d..c7a356bf4e8f 100644 --- a/Documentation/arm64/sve.rst +++ b/Documentation/arm64/sve.rst @@ -52,6 +52,7 @@ model features for SVE is included in Appendix A. HWCAP2_SVEBITPERM HWCAP2_SVESHA3 HWCAP2_SVESM4 + HWCAP2_SVE2P1 This list may be extended over time as the SVE architecture evolves. |