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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-04-13 13:46:50 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-04-25 21:09:05 +0800
commitcf1521a1a5e21fd1e79a458605c4282fbfbbeee2 (patch)
treea7c1fb6d047c75170ddadd0dffe40055167e9c02 /lib/locking-selftest-rsem.h
parent604880107010a1e5794552d184cd5471ea31b973 (diff)
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crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher
Patch adds AVX2/x86-64 implementation of Twofish cipher, requiring 16 parallel blocks for input (256 bytes). Table look-ups are performed using vpgatherdd instruction directly from vector registers and thus should be faster than earlier implementations. Implementation also uses 256-bit wide YMM registers, which should give additional speed up compared to the AVX implementation. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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