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

From: Herbert Xu
Date: Tue Sep 04 2018 - 01:21:52 EST


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@xxxxxxxxxxxxxxxxxxx>
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