arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches

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Open-coding the pointer-auth HWCAPs is a mess and can be avoided by
reusing the multi-cap logic from the CPU errata framework.

Move the multi_entry_cap_matches code to cpufeature.h and reuse it for
the pointer auth HWCAPs.

Reviewed-by: Suzuki Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2018-12-12 15:53:54 +00:00

parent a56005d321

commit 1e013d0612

3 changed files with 99 additions and 89 deletions

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59

arch/arm64/include/asm/cpufeature.h

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34

arch/arm64/kernel/cpu_errata.c

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95

arch/arm64/kernel/cpufeature.c

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