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| author | Joey Gouly <joey.gouly@arm.com> | 2023-09-19 17:27:56 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-10-13 19:11:35 +0100 |
| commit | 338a835f40a849cd89b993e342bd9fbd5684825c (patch) | |
| tree | 6766e1508a0c5e4dcdf4c779c2a8d3a383f309a7 /Documentation/arch | |
| parent | 3accaef1f61e0c5531ae9e92ff0d66981cdf1516 (diff) | |
| download | linux-stable-338a835f40a849cd89b993e342bd9fbd5684825c.tar.gz linux-stable-338a835f40a849cd89b993e342bd9fbd5684825c.tar.bz2 linux-stable-338a835f40a849cd89b993e342bd9fbd5684825c.zip | |
arm64: add FEAT_LRCPC3 HWCAP
FEAT_LRCPC3 adds more instructions to support the Release Consistency model.
Add a HWCAP so that userspace can make decisions about instructions it can use.
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230919162757.2707023-2-joey.gouly@arm.com
[catalin.marinas@arm.com: change the HWCAP number]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/arm64/elf_hwcaps.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/arch/arm64/elf_hwcaps.rst b/Documentation/arch/arm64/elf_hwcaps.rst index 2ad0a369d96a..a453f8430f7f 100644 --- a/Documentation/arch/arm64/elf_hwcaps.rst +++ b/Documentation/arch/arm64/elf_hwcaps.rst @@ -311,6 +311,9 @@ HWCAP2_HBC HWCAP2_SVE_B16B16 Functionality implied by ID_AA64ZFR0_EL1.B16B16 == 0b0001. +HWCAP2_LRCPC3 + Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0011. + 4. Unused AT_HWCAP bits ----------------------- |