arm64/cpufeature: Define hwcaps for 2025 dpISA features

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The features added by the 2025 dpISA are all straightforward instruction
only features so there is no state to manage, we can just expose hwcaps to
let userspace know they are available.

F16MM is slightly odd in that the feature is FEAT_F16MM but it is discovered
via ID_AA64FPFR0_EL1.F16MM2. We follow the feature name.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>

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Mark Brown 2026-05-18 16:07:29 +01:00 • committed by Will Deacon

parent 254f49634e

commit abca5e69ab

4 changed files with 51 additions and 0 deletions

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24

Documentation/arch/arm64/elf_hwcaps.rst

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8

arch/arm64/include/uapi/asm/hwcap.h

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11

arch/arm64/kernel/cpufeature.c

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8

arch/arm64/kernel/cpuinfo.c

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