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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2019-04-26 19:28:11 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2019-04-26 19:28:11 +0300 |
| commit | 14c8a593ede42f51f567ed7ba77b53124151aa38 (patch) | |
| tree | 03a649e8ee9be5efde4b5a313e521814c059b9af /configure.ac | |
| parent | b878a986f3ab2c35aff89c7f66f137a91542ed5b (diff) | |
| download | libgcrypt-14c8a593ede42f51f567ed7ba77b53124151aa38.tar.gz | |
Add 64-bit ARMv8/CE PMULL implementation of CRC
* cipher/Makefile.am: Add 'crc-armv8-ce.c' and
'crc-armv8-aarch64-ce.S'.
* cipher/asm-common-aarch64.h [HAVE_GCC_ASM_CFI_DIRECTIVES]: Add CFI
helper macros.
* cipher/crc-armv8-aarch64-ce.S: New.
* cipher/crc-armv8-ce.c: New.
* cipher/crc.c (USE_ARM_PMULL): New.
(CRC_CONTEXT) [USE_ARM_PMULL]: Add 'use_pmull'.
[USE_ARM_PMULL] (_gcry_crc32_armv8_ce_pmull)
(_gcry_crc24rfc2440_armv8_ce_pmull): New prototypes.
(crc32_init, crc32rfc1510_init, crc24rfc2440_init): Enable ARM PMULL
implementations if supported by HW features.
(crc32_write, crc24rfc2440_write) [USE_ARM_PMULL]: Use ARM PMULL
implementations if enabled.
* configure.ac: Add 'crc-armv8-ce.lo' and 'crc-armv8-aarch64-ce.lo'.
--
Benchmark on Cortex-A53 (at 1104 Mhz):
Before:
| nanosecs/byte mebibytes/sec cycles/byte
CRC32 | 2.89 ns/B 330.2 MiB/s 3.19 c/B
CRC32RFC1510 | 2.89 ns/B 330.2 MiB/s 3.19 c/B
CRC24RFC2440 | 2.72 ns/B 350.8 MiB/s 3.00 c/B
After (crc32 ~8.4x faster, crc24 ~6.8x faster):
| nanosecs/byte mebibytes/sec cycles/byte
CRC32 | 0.341 ns/B 2796 MiB/s 0.377 c/B
CRC32RFC1510 | 0.342 ns/B 2792 MiB/s 0.377 c/B
CRC24RFC2440 | 0.398 ns/B 2396 MiB/s 0.439 c/B
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 1aafc320..aa23a501 100644 --- a/configure.ac +++ b/configure.ac @@ -2409,6 +2409,11 @@ if test "$found" = "1" ; then # Build with the assembly implementation GCRYPT_DIGESTS="$GCRYPT_DIGESTS crc-intel-pclmul.lo" ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS crc-armv8-ce.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS crc-armv8-aarch64-ce.lo" + ;; esac fi |