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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-06-08 12:00:59 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-06-21 14:44:23 +0800
commitacfffdb803b6ab5d520bf9a816bfb155ba3a263d (patch)
tree571852276bf31e0e273c2d8a223998e06ef5df3f /crypto/Kconfig
parent046174d766ad40148ecf3564755055fd91ed2569 (diff)
downloadlinux-acfffdb803b6ab5d520bf9a816bfb155ba3a263d.tar.bz2
crypto: camellia-aesni-avx2 - tune assembly code for more performance
Add implementation tuned for more performance on real hardware. Changes are mostly around the part mixing 128-bit extract and insert instructions and AES-NI instructions. Also 'vpbroadcastb' instructions have been change to 'vpshufb with zero mask'. Tests on Intel Core i5-4570: tcrypt ECB results, old-AVX2 vs new-AVX2: size 128bit key 256bit key enc dec enc dec 256 1.00x 1.00x 1.00x 1.00x 1k 1.08x 1.09x 1.05x 1.06x 8k 1.06x 1.06x 1.06x 1.06x tcrypt ECB results, AVX vs new-AVX2: size 128bit key 256bit key enc dec enc dec 256 1.00x 1.00x 1.00x 1.00x 1k 1.51x 1.50x 1.52x 1.50x 8k 1.47x 1.48x 1.48x 1.48x Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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