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| author | Mark Brown <broonie@kernel.org> | 2023-09-14 11:09:30 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-09-18 11:59:02 +0100 |
| commit | 44a5b6b5c7fee5146572b4c57f0d9d9c398d1033 (patch) | |
| tree | fa14f4a22b86a1b758dfd78b3c48fa6c87071900 /Documentation/arch | |
| parent | 5ad361f42fe43e5f13f9b88341e75eaf2d1bd183 (diff) | |
arm64: Document missing userspace visible fields in ID_AA64ISAR2_EL1
We have exposed a number of fields in ID_AA64ISAR2_EL1 to userspace without
adding the matching documentation in cpu-feature-registers.rst, update it
to match the implementation.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://lore.kernel.org/r/20230914-arm64-feat-hbc-doc-v1-2-797d25f06897@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/arm64/cpu-feature-registers.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/arch/arm64/cpu-feature-registers.rst b/Documentation/arch/arm64/cpu-feature-registers.rst index 5e9ef91f5e36..de6d8a4790e2 100644 --- a/Documentation/arch/arm64/cpu-feature-registers.rst +++ b/Documentation/arch/arm64/cpu-feature-registers.rst @@ -290,8 +290,18 @@ infrastructure: +------------------------------+---------+---------+ | Name | bits | visible | +------------------------------+---------+---------+ + | CSSC | [55-52] | y | + +------------------------------+---------+---------+ + | RPRFM | [51-48] | y | + +------------------------------+---------+---------+ + | BC | [23-20] | y | + +------------------------------+---------+---------+ | MOPS | [19-16] | y | +------------------------------+---------+---------+ + | APA3 | [15-12] | y | + +------------------------------+---------+---------+ + | GPA3 | [11-8] | y | + +------------------------------+---------+---------+ | RPRES | [7-4] | y | +------------------------------+---------+---------+ | WFXT | [3-0] | y | |