From: Yazen Ghannam <yazen.ghannam@linaro.org>
Date: Wed, 19 Nov 2014 17:19:37 +0000 (-0600)
Subject: crypto: crc32 - Add ARM64 CRC32 hw accelerated module
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~96^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6f203faa3ebd8fa229e34424850a0919ded6c10;p=pandora-kernel.git

crypto: crc32 - Add ARM64 CRC32 hw accelerated module

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>
---

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