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| author | Mark Brown <broonie@kernel.org> | 2022-07-07 12:36:32 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-07-20 12:18:11 +0200 |
| commit | a6a468f50d6a1fa20bcd023f286713d243f5025d (patch) | |
| tree | 503f434b6569d8d60016cb00ec1acde2b357675c /Documentation/arm64 | |
| parent | arm64/cpufeature: Store elf_hwcaps as a bitmap rather than unsigned long (diff) | |
| download | linux-a6a468f50d6a1fa20bcd023f286713d243f5025d.tar.xz linux-a6a468f50d6a1fa20bcd023f286713d243f5025d.zip | |
arm64/hwcap: Support FEAT_EBF16
The v9.2 feature FEAT_EBF16 provides support for an extended BFloat16 mode.
Allow userspace to discover system support for this feature by adding a
hwcap for it.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220707103632.12745-4-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst index 3d116fb536c5..31fc10b833dd 100644 --- a/Documentation/arm64/elf_hwcaps.rst +++ b/Documentation/arm64/elf_hwcaps.rst @@ -301,6 +301,10 @@ HWCAP2_WFXT Functionality implied by ID_AA64ISAR2_EL1.WFXT == 0b0010. +HWCAP2_EBF16 + + Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0010. + 4. Unused AT_HWCAP bits ----------------------- |