crypto: crc32 - Add ARM64 CRC32 hw accelerated module

Browse source

This module registers a crc32 algorithm and a crc32c algorithm
that use the optional CRC32 and CRC32C instructions in ARMv8.

Tested on AMD Seattle.

Improvement compared to crc32c-generic algorithm:
TCRYPT CRC32C speed test shows ~450% speedup.
Simple dd write tests to btrfs filesystem show ~30% speedup.

Signed-off-by: Yazen Ghannam <yazen.ghannam@linaro.org>
Acked-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

...

This commit is contained in:

Yazen Ghannam 2014-11-19 11:19:37 -06:00 • committed by Herbert Xu

parent aa408d6019

commit f6f203faa3

3 changed files with 282 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

arch/arm64/crypto/Kconfig

View file

4

arch/arm64/crypto/Makefile

View file

274

arch/arm64/crypto/crc32-arm64.c

View file