linux/arch/arm64/crypto
Ard Biesheuvel 0eee0fbd41 arm64: crypto: increase AES interleave to 4x
This patch increases the interleave factor for parallel AES modes
to 4x. This improves performance on Cortex-A57 by ~35%. This is
due to the 3-cycle latency of AES instructions on the A57's
relatively deep pipeline (compared to Cortex-A53 where the AES
instruction latency is only 2 cycles).

At the same time, disable inline expansion of the core AES functions,
as the performance benefit of this feature is negligible.

  Measured on AMD Seattle (using tcrypt.ko mode=500 sec=1):

  Baseline (2x interleave, inline expansion)
  ------------------------------------------
  testing speed of async cbc(aes) (cbc-aes-ce) decryption
  test 4 (128 bit key, 8192 byte blocks): 95545 operations in 1 seconds
  test 14 (256 bit key, 8192 byte blocks): 68496 operations in 1 seconds

  This patch (4x interleave, no inline expansion)
  -----------------------------------------------
  testing speed of async cbc(aes) (cbc-aes-ce) decryption
  test 4 (128 bit key, 8192 byte blocks): 124735 operations in 1 seconds
  test 14 (256 bit key, 8192 byte blocks): 92328 operations in 1 seconds

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-02-26 18:31:46 +00:00
..
aes-ce-ccm-core.S arm64/crypto: AES in CCM mode using ARMv8 Crypto Extensions 2014-05-14 10:04:15 -07:00
aes-ce-ccm-glue.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2014-12-13 13:33:26 -08:00
aes-ce-cipher.c arm64/crypto: use crypto instructions to generate AES key schedule 2014-11-06 17:25:28 +00:00
aes-ce-setkey.h arm64/crypto: use crypto instructions to generate AES key schedule 2014-11-06 17:25:28 +00:00
aes-ce.S arm64/crypto: AES-ECB/CBC/CTR/XTS using ARMv8 NEON and Crypto Extensions 2014-05-14 10:04:16 -07:00
aes-glue.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2014-12-13 13:33:26 -08:00
aes-modes.S arm64/crypto: AES-ECB/CBC/CTR/XTS using ARMv8 NEON and Crypto Extensions 2014-05-14 10:04:16 -07:00
aes-neon.S arm64/crypto: AES-ECB/CBC/CTR/XTS using ARMv8 NEON and Crypto Extensions 2014-05-14 10:04:16 -07:00
crc32-arm64.c crypto: crc32 - Add ARM64 CRC32 hw accelerated module 2014-11-20 22:39:39 +08:00
ghash-ce-core.S arm64/crypto: improve performance of GHASH algorithm 2014-06-18 12:40:54 +01:00
ghash-ce-glue.c arm64/crypto: improve performance of GHASH algorithm 2014-06-18 12:40:54 +01:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2014-12-13 13:33:26 -08:00
Makefile arm64: crypto: increase AES interleave to 4x 2015-02-26 18:31:46 +00:00
sha1-ce-core.S
sha1-ce-glue.c
sha2-ce-core.S arm64/crypto: SHA-224/SHA-256 using ARMv8 Crypto Extensions 2014-05-14 10:04:01 -07:00
sha2-ce-glue.c arm64/crypto: remove redundant update of data 2014-08-26 11:42:22 +01:00