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| author | Mark Brown <broonie@kernel.org> | 2025-08-18 22:21:18 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-09-16 21:55:11 +0300 |
| commit | 220928e52cb03d223b3acad3888baf0687486d21 (patch) | |
| tree | ebe2dfd605c608f9258085fd3a06157480a88f3a /Documentation/arch | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
| download | linux-220928e52cb03d223b3acad3888baf0687486d21.tar.xz | |
arm64/hwcap: Add hwcap for FEAT_LSFE
FEAT_LSFE (Large System Float Extension), providing atomic floating point
memory operations, is optional from v9.5. This feature adds no new
architectural stare and we have no immediate use for it in the kernel so
simply provide a hwcap for it to support discovery by userspace.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/arm64/elf_hwcaps.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arch/arm64/elf_hwcaps.rst b/Documentation/arch/arm64/elf_hwcaps.rst index f58ada4d6cb2..a15df4956849 100644 --- a/Documentation/arch/arm64/elf_hwcaps.rst +++ b/Documentation/arch/arm64/elf_hwcaps.rst @@ -441,6 +441,10 @@ HWCAP3_MTE_FAR HWCAP3_MTE_STORE_ONLY Functionality implied by ID_AA64PFR2_EL1.MTESTOREONLY == 0b0001. +HWCAP3_LSFE + Functionality implied by ID_AA64ISAR3_EL1.LSFE == 0b0001 + + 4. Unused AT_HWCAP bits ----------------------- |