diff options
| author | XiaokangQian <xiaokang.qian@arm.com> | 2021-06-09 06:35:46 +0000 |
|---|---|---|
| committer | Pauli <pauli@openssl.org> | 2022-01-25 14:30:00 +1100 |
| commit | 954f45ba4c504570206ff5bed811e512cf92dc8e (patch) | |
| tree | 6d2521f79615afd4c8b35cb2c6794a57aded5602 /crypto/arm64cpuid.pl | |
| parent | 44a563dde1584cd9284e80b6e45ee5019be8d36c (diff) | |
Optimize AES-GCM for uarchs with unroll and new instructions
Increase the block numbers to 8 for every iteration. Increase the hash
table capacity. Make use of EOR3 instruction to improve the performance.
This can improve performance 25-40% on out-of-order microarchitectures
with a large number of fast execution units, such as Neoverse V1. We also
see 20-30% performance improvements on other architectures such as the M1.
Assembly code reviewd by Tom Cosgrove (ARM).
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15916)
Diffstat (limited to 'crypto/arm64cpuid.pl')
| -rwxr-xr-x | crypto/arm64cpuid.pl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/arm64cpuid.pl b/crypto/arm64cpuid.pl index 1841c0cc04..ebea4be59c 100755 --- a/crypto/arm64cpuid.pl +++ b/crypto/arm64cpuid.pl @@ -96,6 +96,14 @@ _armv8_sha512_probe: ret .size _armv8_sha512_probe,.-_armv8_sha512_probe +.globl _armv8_eor3_probe +.type _armv8_eor3_probe,%function +_armv8_eor3_probe: + AARCH64_VALID_CALL_TARGET + .long 0xce010800 // eor3 v0.16b, v0.16b, v1.16b, v2.16b + ret +.size _armv8_eor3_probe,.-_armv8_eor3_probe + .globl _armv8_cpuid_probe .type _armv8_cpuid_probe,%function _armv8_cpuid_probe: |