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author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2019-10-24 14:47:51 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-29 09:17:10 +0100 |
commit | 053cdffad3dd5e4a9330433ba2b400956f33bd2b (patch) | |
tree | 3cf804341f6a0281861e698fabe5ee9373ff96c2 /Documentation/arm/vlocks.txt | |
parent | eb952c6bce53b5389c41ffc3698594cb43b5aeb9 (diff) |
arm64: Expose Arm v8.4 features
[ Upstream commit 7206dc93a58fb76421c4411eefa3c003337bcb2d ]
Expose the new features introduced by Arm v8.4 extensions to
Arm v8-A profile.
These include :
1) Data indpendent timing of instructions. (DIT, exposed as HWCAP_DIT)
2) Unaligned atomic instructions and Single-copy atomicity of loads
and stores. (AT, expose as HWCAP_USCAT)
3) LDAPR and STLR instructions with immediate offsets (extension to
LRCPC, exposed as HWCAP_ILRCPC)
4) Flag manipulation instructions (TS, exposed as HWCAP_FLAGM).
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Dave Martin <dave.martin@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
[ardb: fix up context for missing SVE]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/arm/vlocks.txt')
0 files changed, 0 insertions, 0 deletions