crypto: cast5/avx - avoid using temporary stack buffers

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Introduce new assembler functions to avoid use temporary stack buffers in glue
code. This also allows use of vector instructions for xoring output in CTR and
CBC modes and construction of IVs for CTR mode.

ECB mode sees ~0.5% decrease in speed because added one extra function
call. CBC mode decryption and CTR mode benefit from vector operations
and gain ~5%.

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

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Jussi Kivilinna 2012-10-20 15:06:56 +03:00 • committed by Herbert Xu

parent facd416fbc

commit c12ab20b16

2 changed files with 280 additions and 131 deletions

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332

arch/x86/crypto/cast5-avx-x86_64-asm_64.S

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79

arch/x86/crypto/cast5_avx_glue.c

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