[PATCH] Add SM3 x86-64 AVX/BMI2 assembly implementation

[Tianjia Zhang]

Hi Jussi,

On 12/12/21 10:49 PM, Jussi Kivilinna wrote:
> * cipher/Makefile.am: Add 'sm3-avx-bmi2-amd64.S'.
> * cipher/sm3-avx-bmi2-amd64.S: New.
> * cipher/sm3.c (USE_AVX_BMI2, ASM_FUNC_ABI, ASM_EXTRA_STACK): New.
> (SM3_CONTEXT): Define 'h' as array instead of separate fields 'h1',
> 'h2', etc.
> [USE_AVX_BMI2] (_gcry_sm3_transform_amd64_avx_bmi2)
> (do_sm3_transform_amd64_avx_bmi2): New.
> (sm3_init): Select AVX/BMI2 transform function if support by HW; Update
> to use 'hd->h' as array.
> (transform_blk, sm3_final): Update to use 'hd->h' as array.
> * configure.ac: Add 'sm3-avx-bmi2-amd64.lo'.
> --
> 
> Benchmark on AMD Zen3:
> 
>   Before:
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      2.18 ns/B     436.6 MiB/s     10.59 c/B      4850
> 
>   After (~43% faster):
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      1.52 ns/B     627.4 MiB/s      7.37 c/B      4850
> 
> 
> Benchmark on Intel Skylake:
> 
>   Before:
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      4.35 ns/B     219.2 MiB/s     13.48 c/B      3098
> 
>   After (~34% faster):
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      3.24 ns/B     294.4 MiB/s     10.04 c/B      3098
> 
> 
> Benchmark on AMD Zen2:
> 
>   Before:
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      2.73 ns/B     348.9 MiB/s     11.86 c/B      4339
> 
>   After (~38% faster):
>                  |  nanosecs/byte   mebibytes/sec   cycles/byte  auto Mhz
>   SM3            |      1.97 ns/B     483.0 MiB/s      8.52 c/B      4318
> 
> 
> Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>
> ---

Great job, it is very valuable to us, if possible, add this tag:

Reviewed-and-tested-by: Tianjia Zhang <tianjia.zhang at linux.alibaba.com>

Best regards,
Tianjia