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| author | Andrew Murray <andrew.murray@arm.com> | 2019-04-09 11:52:43 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-04-16 17:27:56 +0200 |
| commit | 671db581815faf17cbedd7fcbc48823a247d90b1 (patch) | |
| tree | 97c4cc514b103a6eb301cbd34dcc735235401f23 /Documentation/arm64 | |
| parent | arm64: Handle trapped DC CVADP (diff) | |
| download | linux-671db581815faf17cbedd7fcbc48823a247d90b1.tar.xz linux-671db581815faf17cbedd7fcbc48823a247d90b1.zip | |
arm64: Expose DC CVADP to userspace
ARMv8.5 builds upon the ARMv8.2 DC CVAP instruction by introducing a DC
CVADP instruction which cleans the data cache to the point of deep
persistence. Let's expose this support via the arm64 ELF hwcaps.
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt index 11805777031e..55431fd2a67a 100644 --- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -135,6 +135,10 @@ HWCAP_DCPOP Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001. +HWCAP2_DCPODP + + Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010. + HWCAP_SHA3 Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001. |