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| author | Steven Price <steven.price@arm.com> | 2019-12-16 14:33:37 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-01-15 14:13:07 +0300 |
| commit | d4209d8b717311d114b5d47ba7f8249fd44e97c2 (patch) | |
| tree | ca1180c2cd7c364da1e92c187a0a42f6c4c7e000 /arch/arm64/lib/copy_page.S | |
| parent | 46cf053efec6a3a5f343fead837777efe8252a46 (diff) | |
| download | linux-d4209d8b717311d114b5d47ba7f8249fd44e97c2.tar.xz | |
arm64: cpufeature: Export matrix and other features to userspace
Export the features introduced as part of ARMv8.6 exposed in the
ID_AA64ISAR1_EL1 and ID_AA64ZFR0_EL1 registers. This introduces the
Matrix features (ARMv8.2-I8MM, ARMv8.2-F64MM and ARMv8.2-F32MM) along
with BFloat16 (Armv8.2-BF16), speculation invalidation (SPECRES) and
Data Gathering Hint (ARMv8.0-DGH).
Signed-off-by: Julien Grall <julien.grall@arm.com>
[Added other features in those registers]
Signed-off-by: Steven Price <steven.price@arm.com>
[will: Don't advertise SPECRES to userspace]
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/lib/copy_page.S')
0 files changed, 0 insertions, 0 deletions