[PATCH 0/2] crypto: arm64/crct10dif - refactor and implement non-Crypto Extension version

Herbert Xu herbert at gondor.apana.org.au
Mon Sep 3 22:21:34 PDT 2018


On Mon, Aug 27, 2018 at 05:38:10PM +0200, Ard Biesheuvel wrote:
> The current arm64 CRC-T10DIF code only runs on cores that implement the
> 64x64 bit PMULL instructions that are part of the optional Crypto
> Extensions, and falls back to the highly inefficient C code otherwise.
> 
> Let's provide a SIMD version that is twice as fast as the C code even on
> a low end core like the Cortex-A53, and is time invariant and much easier
> on the D-cache.
> 
> Some performance numbers at the bottom.
> 
> Ard Biesheuvel (2):
>   crypto: arm64/crct10dif - preparatory refactor for 8x8 PMULL version
>   crypto: arm64/crct10dif - implement non-Crypto Extensions alternative
> 
>  arch/arm64/crypto/crct10dif-ce-core.S | 314 +++++++++++++++-----
>  arch/arm64/crypto/crct10dif-ce-glue.c |  14 +-
>  2 files changed, 251 insertions(+), 77 deletions(-)

All applied.  Thanks.
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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