From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Date: Mon, 8 Apr 2013 18:50:55 +0000 (+0300)
Subject: crypto: x86 - add more optimized XTS-mode for serpent-avx
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~57^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a05248ed2d9a83ae7c3e6db7c4ef9331c3dedc81;p=pandora-kernel.git

crypto: x86 - add more optimized XTS-mode for serpent-avx

This patch adds AVX optimized XTS-mode helper functions/macros and converts
serpent-avx to use the new facilities. Benefits are slightly improved speed
and reduced stack usage as use of temporary IV-array is avoided.

tcrypt results, with Intel i5-2450M:
        enc     dec
16B     1.00x   1.00x
64B     1.00x   1.00x
256B    1.04x   1.06x
1024B   1.09x   1.09x
8192B   1.10x   1.09x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

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