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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-06-09 16:37:38 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-06-09 16:37:42 +0300 |
| commit | e7ab4e1a7396f4609b9033207015b239ab4a5140 (patch) | |
| tree | 97572bf1acf49e030d0ad1c361cb7c7415ebc4a5 /configure.ac | |
| parent | 3289bca708bdd02c69a331095ac6ca9a1efd74cc (diff) | |
| download | libgcrypt-e7ab4e1a7396f4609b9033207015b239ab4a5140.tar.gz | |
Add Serpent AVX2 implementation
* cipher/Makefile.am: Add 'serpent-avx2-amd64.S'.
* cipher/serpent-avx2-amd64.S: New file.
* cipher/serpent.c (USE_AVX2): New macro.
(serpent_context_t) [USE_AVX2]: Add 'use_avx2'.
[USE_AVX2] (_gcry_serpent_avx2_ctr_enc, _gcry_serpent_avx2_cbc_dec)
(_gcry_serpent_avx2_cfb_dec): New prototypes.
(serpent_setkey_internal) [USE_AVX2]: Check for AVX2 capable hardware
and set 'use_avx2'.
(_gcry_serpent_ctr_enc) [USE_AVX2]: Use AVX2 accelerated functions.
(_gcry_serpent_cbc_dec) [USE_AVX2]: Use AVX2 accelerated functions.
(_gcry_serpent_cfb_dec) [USE_AVX2]: Use AVX2 accelerated functions.
(selftest_ctr_128, selftest_cbc_128, selftest_cfb_128): Grow 'nblocks'
so that AVX2 codepaths are tested.
* configure.ac (serpent) [avx2support]: Add 'serpent-avx2-amd64.lo'.
--
Add new AVX2 implementation of Serpent that processes 16 blocks in parallel.
Speed old (SSE2) vs. new (AVX2) on Intel Core i5-4570:
ECB/Stream CBC CFB OFB CTR
--------------- --------------- --------------- --------------- ---------------
SERPENT128 1.00x 1.00x 1.00x 2.10x 1.00x 2.16x 1.01x 1.00x 2.16x 2.18x
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7fc7935c..05acd394 100644 --- a/configure.ac +++ b/configure.ac @@ -1288,6 +1288,11 @@ if test "$found" = "1" ; then GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent-sse2-amd64.lo" ;; esac + + if test x"$avx2support" = xyes ; then + # Build with the AVX2 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent-avx2-amd64.lo" + fi fi LIST_MEMBER(rfc2268, $enabled_ciphers) |