arm64: cpufeature: add feature for CRC32 instructions

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Add a CRC32 feature bit and wire it up to the CPU id register so we
will be able to use alternatives patching for CRC32 operations.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Ard Biesheuvel 2018-08-27 13:02:43 +02:00 • committed by Catalin Marinas

parent 9784d82db3

commit 86d0dd34ea

2 changed files with 11 additions and 1 deletions

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3

arch/arm64/include/asm/cpucaps.h

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9

arch/arm64/kernel/cpufeature.c

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