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From 8a83d735057dde1f727eb0921446e4ca8b085267 Mon Sep 17 00:00:00 2001
From: "fangming.fang" <fangming.fang@arm.com>
Date: Fri, 24 Dec 2021 08:29:04 +0000
Subject: [PATCH 02/13] SM3 acceleration with SM3 hardware instruction on
aarch64
SM3 hardware instruction is optional feature of crypto extension for
aarch64. This implementation accelerates SM3 via SM3 instructions. For
the platform not supporting SM3 instruction, the original C
implementation still works. Thanks to AliBaba for testing and reporting
the following perf numbers for Yitian710:
Benchmark on T-Head Yitian-710 2.75GHz:
Before:
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes
sm3 49297.82k 121062.63k 223106.05k 283371.52k 307574.10k 309400.92k
After (33% - 74% faster):
type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes
sm3 65640.01k 179121.79k 359854.59k 481448.96k 534055.59k 538274.47k
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17454)
---
crypto/arm64cpuid.pl | 8 +
crypto/arm_arch.h | 2 +
crypto/armcap.c | 10 ++
crypto/sm3/asm/sm3-armv8.pl | 282 ++++++++++++++++++++++++++++++++++++
crypto/sm3/build.info | 21 ++-
crypto/sm3/sm3_local.h | 16 +-
6 files changed, 336 insertions(+), 3 deletions(-)
create mode 100644 crypto/sm3/asm/sm3-armv8.pl
diff --git a/crypto/arm64cpuid.pl b/crypto/arm64cpuid.pl
index 11f0e50279..10d267b7ad 100755
--- a/crypto/arm64cpuid.pl
+++ b/crypto/arm64cpuid.pl
@@ -96,6 +96,14 @@ _armv8_cpuid_probe:
ret
.size _armv8_cpuid_probe,.-_armv8_cpuid_probe
+.globl _armv8_sm3_probe
+.type _armv8_sm3_probe,%function
+_armv8_sm3_probe:
+ AARCH64_VALID_CALL_TARGET
+ .long 0xce63c004 // sm3partw1 v4.4s, v0.4s, v3.4s
+ ret
+.size _armv8_sm3_probe,.-_armv8_sm3_probe
+
.globl OPENSSL_cleanse
.type OPENSSL_cleanse,%function
.align 5
diff --git a/crypto/arm_arch.h b/crypto/arm_arch.h
index a815a5c72b..c8b501f34c 100644
--- a/crypto/arm_arch.h
+++ b/crypto/arm_arch.h
@@ -83,6 +83,8 @@ extern unsigned int OPENSSL_armv8_rsa_neonized;
# define ARMV8_PMULL (1<<5)
# define ARMV8_SHA512 (1<<6)
# define ARMV8_CPUID (1<<7)
+# define ARMV8_RNG (1<<8)
+# define ARMV8_SM3 (1<<9)
/*
* MIDR_EL1 system register
diff --git a/crypto/armcap.c b/crypto/armcap.c
index c021330e32..365a48df45 100644
--- a/crypto/armcap.c
+++ b/crypto/armcap.c
@@ -52,6 +52,7 @@ void _armv8_sha1_probe(void);
void _armv8_sha256_probe(void);
void _armv8_pmull_probe(void);
# ifdef __aarch64__
+void _armv8_sm3_probe(void);
void _armv8_sha512_probe(void);
unsigned int _armv8_cpuid_probe(void);
# endif
@@ -137,6 +138,7 @@ static unsigned long getauxval(unsigned long key)
# define HWCAP_CE_SHA1 (1 << 5)
# define HWCAP_CE_SHA256 (1 << 6)
# define HWCAP_CPUID (1 << 11)
+# define HWCAP_CE_SM3 (1 << 18)
# define HWCAP_CE_SHA512 (1 << 21)
# endif
@@ -210,6 +212,9 @@ void OPENSSL_cpuid_setup(void)
if (hwcap & HWCAP_CPUID)
OPENSSL_armcap_P |= ARMV8_CPUID;
+
+ if (hwcap & HWCAP_CE_SM3)
+ OPENSSL_armcap_P |= ARMV8_SM3;
# endif
}
# endif
@@ -253,6 +258,11 @@ void OPENSSL_cpuid_setup(void)
_armv8_sha512_probe();
OPENSSL_armcap_P |= ARMV8_SHA512;
}
+
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ _armv8_sm3_probe();
+ OPENSSL_armcap_P |= ARMV8_SM3;
+ }
# endif
}
# endif
diff --git a/crypto/sm3/asm/sm3-armv8.pl b/crypto/sm3/asm/sm3-armv8.pl
new file mode 100644
index 0000000000..bb71b2eade
--- /dev/null
+++ b/crypto/sm3/asm/sm3-armv8.pl
@@ -0,0 +1,282 @@
+#! /usr/bin/env perl
+# Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (the "License"). You may not use
+# this file except in compliance with the License. You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+#
+# This module implements support for Armv8 SM3 instructions
+
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
+die "can't locate arm-xlate.pl";
+
+open OUT,"| \"$^X\" $xlate $flavour \"$output\""
+ or die "can't call $xlate: $!";
+*STDOUT=*OUT;
+
+# Message expanding:
+# Wj <- P1(W[j-16]^W[j-9]^(W[j-3]<<<15))^(W[j-13]<<<7)^W[j-6]
+# Input: s0, s1, s2, s3
+# s0 = w0 | w1 | w2 | w3
+# s1 = w4 | w5 | w6 | w7
+# s2 = w8 | w9 | w10 | w11
+# s3 = w12 | w13 | w14 | w15
+# Output: s4
+sub msg_exp () {
+my $s0 = shift;
+my $s1 = shift;
+my $s2 = shift;
+my $s3 = shift;
+my $s4 = shift;
+my $vtmp1 = shift;
+my $vtmp2 = shift;
+$code.=<<___;
+ // s4 = w7 | w8 | w9 | w10
+ ext $s4.16b, $s1.16b, $s2.16b, #12
+ // vtmp1 = w3 | w4 | w5 | w6
+ ext $vtmp1.16b, $s0.16b, $s1.16b, #12
+ // vtmp2 = w10 | w11 | w12 | w13
+ ext $vtmp2.16b, $s2.16b, $s3.16b, #8
+ sm3partw1 $s4.4s, $s0.4s, $s3.4s
+ sm3partw2 $s4.4s, $vtmp2.4s, $vtmp1.4s
+___
+}
+
+# A round of compresson function
+# Input:
+# ab - choose instruction among sm3tt1a, sm3tt1b, sm3tt2a, sm3tt2b
+# vstate0 - vstate1, store digest status(A - H)
+# vconst0 - vconst1, interleaved used to store Tj <<< j
+# vtmp - temporary register
+# vw - for sm3tt1ab, vw = s0 eor s1
+# s0 - for sm3tt2ab, just be s0
+# i, choose wj' or wj from vw
+sub round () {
+my $ab = shift;
+my $vstate0 = shift;
+my $vstate1 = shift;
+my $vconst0 = shift;
+my $vconst1 = shift;
+my $vtmp = shift;
+my $vw = shift;
+my $s0 = shift;
+my $i = shift;
+$code.=<<___;
+ sm3ss1 $vtmp.4s, $vstate0.4s, $vconst0.4s, $vstate1.4s
+ shl $vconst1.4s, $vconst0.4s, #1
+ sri $vconst1.4s, $vconst0.4s, #31
+ sm3tt1$ab $vstate0.4s, $vtmp.4s, $vw.4s[$i]
+ sm3tt2$ab $vstate1.4s, $vtmp.4s, $s0.4s[$i]
+___
+}
+
+sub qround () {
+my $ab = shift;
+my $vstate0 = shift;
+my $vstate1 = shift;
+my $vconst0 = shift;
+my $vconst1 = shift;
+my $vtmp1 = shift;
+my $vtmp2 = shift;
+my $s0 = shift;
+my $s1 = shift;
+my $s2 = shift;
+my $s3 = shift;
+my $s4 = shift;
+ if($s4) {
+ &msg_exp($s0, $s1, $s2, $s3, $s4, $vtmp1, $vtmp2);
+ }
+$code.=<<___;
+ eor $vtmp1.16b, $s0.16b, $s1.16b
+___
+ &round($ab, $vstate0, $vstate1, $vconst0, $vconst1, $vtmp2,
+ $vtmp1, $s0, 0);
+ &round($ab, $vstate0, $vstate1, $vconst1, $vconst0, $vtmp2,
+ $vtmp1, $s0, 1);
+ &round($ab, $vstate0, $vstate1, $vconst0, $vconst1, $vtmp2,
+ $vtmp1, $s0, 2);
+ &round($ab, $vstate0, $vstate1, $vconst1, $vconst0, $vtmp2,
+ $vtmp1, $s0, 3);
+}
+
+$code=<<___;
+#include "arm_arch.h"
+.arch armv8.2-a+sm4
+.text
+___
+
+{{{
+my ($pstate,$pdata,$num)=("x0","x1","w2");
+my ($state1,$state2)=("v5","v6");
+my ($sconst1, $sconst2)=("s16","s17");
+my ($vconst1, $vconst2)=("v16","v17");
+my ($s0,$s1,$s2,$s3,$s4)=map("v$_",(0..4));
+my ($bkstate1,$bkstate2)=("v18","v19");
+my ($vconst_tmp1,$vconst_tmp2)=("v20","v21");
+my ($vtmp1,$vtmp2)=("v22","v23");
+my $constaddr="x8";
+# void ossl_hwsm3_block_data_order(SM3_CTX *c, const void *p, size_t num)
+$code.=<<___;
+.globl ossl_hwsm3_block_data_order
+.type ossl_hwsm3_block_data_order,%function
+.align 5
+ossl_hwsm3_block_data_order:
+ AARCH64_VALID_CALL_TARGET
+ // load state
+ ld1 {$state1.4s-$state2.4s}, [$pstate]
+ rev64 $state1.4s, $state1.4s
+ rev64 $state2.4s, $state2.4s
+ ext $state1.16b, $state1.16b, $state1.16b, #8
+ ext $state2.16b, $state2.16b, $state2.16b, #8
+
+ adr $constaddr, .Tj
+ ldp $sconst1, $sconst2, [$constaddr]
+
+.Loop:
+ // load input
+ ld1 {$s0.16b-$s3.16b}, [$pdata], #64
+ sub $num, $num, #1
+
+ mov $bkstate1.16b, $state1.16b
+ mov $bkstate2.16b, $state2.16b
+
+#ifndef __ARMEB__
+ rev32 $s0.16b, $s0.16b
+ rev32 $s1.16b, $s1.16b
+ rev32 $s2.16b, $s2.16b
+ rev32 $s3.16b, $s3.16b
+#endif
+
+ ext $vconst_tmp1.16b, $vconst1.16b, $vconst1.16b, #4
+___
+ &qround("a",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s0,$s1,$s2,$s3,$s4);
+ &qround("a",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s1,$s2,$s3,$s4,$s0);
+ &qround("a",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s2,$s3,$s4,$s0,$s1);
+ &qround("a",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s3,$s4,$s0,$s1,$s2);
+
+$code.=<<___;
+ ext $vconst_tmp1.16b, $vconst2.16b, $vconst2.16b, #4
+___
+
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s4,$s0,$s1,$s2,$s3);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s0,$s1,$s2,$s3,$s4);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s1,$s2,$s3,$s4,$s0);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s2,$s3,$s4,$s0,$s1);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s3,$s4,$s0,$s1,$s2);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s4,$s0,$s1,$s2,$s3);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s0,$s1,$s2,$s3,$s4);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s1,$s2,$s3,$s4,$s0);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s2,$s3,$s4,$s0,$s1);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s3,$s4);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s4,$s0);
+ &qround("b",$state1,$state2,$vconst_tmp1,$vconst_tmp2,$vtmp1,$vtmp2,
+ $s0,$s1);
+
+$code.=<<___;
+ eor $state1.16b, $state1.16b, $bkstate1.16b
+ eor $state2.16b, $state2.16b, $bkstate2.16b
+
+ // any remained blocks?
+ cbnz $num, .Loop
+
+ // save state
+ rev64 $state1.4s, $state1.4s
+ rev64 $state2.4s, $state2.4s
+ ext $state1.16b, $state1.16b, $state1.16b, #8
+ ext $state2.16b, $state2.16b, $state2.16b, #8
+ st1 {$state1.4s-$state2.4s}, [$pstate]
+ ret
+.size ossl_hwsm3_block_data_order,.-ossl_hwsm3_block_data_order
+
+.align 3
+.Tj:
+.word 0x79cc4519, 0x9d8a7a87
+___
+}}}
+
+#########################################
+my %sm3partopcode = (
+ "sm3partw1" => 0xce60C000,
+ "sm3partw2" => 0xce60C400);
+
+my %sm3sslopcode = (
+ "sm3ssl" => 0xce400000);
+
+my %sm3ttopcode = (
+ "sm3tt1a" => 0xce408000,
+ "sm3tt1b" => 0xce408400,
+ "sm3tt2a" => 0xce408800,
+ "sm3tt2b" => 0xce408C00);
+
+sub unsm3part {
+ my ($mnemonic,$arg)=@_;
+
+ $arg=~ m/[qv](\d+)[^,]*,\s*[qv](\d+)[^,]*,\s*[qv](\d+)/o
+ &&
+ sprintf ".inst\t0x%08x\t//%s %s",
+ $sm3partopcode{$mnemonic}|$1|($2<<5)|($3<<16),
+ $mnemonic,$arg;
+}
+
+sub unsm3ssl {
+ my ($mnemonic,$arg)=@_;
+
+ $arg=~ m/[qv](\d+)[^,]*,\s*[qv](\d+)[^,]*,\s*[qv](\d+)[^,]*,
+ \s*[qv](\d+)/o
+ &&
+ sprintf ".inst\t0x%08x\t//%s %s",
+ $sm3sslopcode{$mnemonic}|$1|($2<<5)|($3<<16)|($4<<10),
+ $mnemonic,$arg;
+}
+
+sub unsm3tt {
+ my ($mnemonic,$arg)=@_;
+
+ $arg=~ m/[qv](\d+)[^,]*,\s*[qv](\d+)[^,]*,\s*[qv](\d+)[^,]*\[([0-3])\]/o
+ &&
+ sprintf ".inst\t0x%08x\t//%s %s",
+ $sm3ttopcode{$mnemonic}|$1|($2<<5)|($3<<16)|($4<<12),
+ $mnemonic,$arg;
+}
+
+open SELF,$0;
+while(<SELF>) {
+ next if (/^#!/);
+ last if (!s/^#/\/\// and !/^$/);
+ print;
+}
+close SELF;
+
+foreach(split("\n",$code)) {
+ s/\`([^\`]*)\`/eval($1)/ge;
+
+ s/\b(sm3partw[1-2])\s+([qv].*)/unsm3part($1,$2)/ge;
+ s/\b(sm3ssl)\s+([qv].*)/unsm3ssl($1,$2)/ge;
+ s/\b(sm3tt[1-2][a-b])\s+([qv].*)/unsm3tt($1,$2)/ge;
+ print $_,"\n";
+}
+
+close STDOUT or die "error closing STDOUT: $!";
diff --git a/crypto/sm3/build.info b/crypto/sm3/build.info
index eca68216f2..2fa54a4a8b 100644
--- a/crypto/sm3/build.info
+++ b/crypto/sm3/build.info
@@ -1,5 +1,22 @@
LIBS=../../libcrypto
IF[{- !$disabled{sm3} -}]
- SOURCE[../../libcrypto]=sm3.c legacy_sm3.c
-ENDIF
\ No newline at end of file
+ IF[{- !$disabled{asm} -}]
+ $SM3ASM_aarch64=sm3-armv8.S
+ $SM3DEF_aarch64=OPENSSL_SM3_ASM
+
+ # Now that we have defined all the arch specific variables, use the
+ # appropriate ones, and define the appropriate macros
+ IF[$SM3ASM_{- $target{asm_arch} -}]
+ $SM3ASM=$SM3ASM_{- $target{asm_arch} -}
+ $SM3DEF=$SM3DEF_{- $target{asm_arch} -}
+ ENDIF
+ ENDIF
+
+ SOURCE[../../libcrypto]=sm3.c legacy_sm3.c $SM3ASM
+ DEFINE[../../libcrypto]=$SM3DEF
+
+ GENERATE[sm3-armv8.S]=asm/sm3-armv8.pl
+ INCLUDE[sm3-armv8.o]=..
+ENDIF
+
diff --git a/crypto/sm3/sm3_local.h b/crypto/sm3/sm3_local.h
index 6daeb878a8..ac8a2bf768 100644
--- a/crypto/sm3/sm3_local.h
+++ b/crypto/sm3/sm3_local.h
@@ -32,7 +32,21 @@
ll=(c)->G; (void)HOST_l2c(ll, (s)); \
ll=(c)->H; (void)HOST_l2c(ll, (s)); \
} while (0)
-#define HASH_BLOCK_DATA_ORDER ossl_sm3_block_data_order
+
+#if defined(OPENSSL_SM3_ASM)
+# if defined(__aarch64__)
+# include "crypto/arm_arch.h"
+# define HWSM3_CAPABLE (OPENSSL_armcap_P & ARMV8_SM3)
+void ossl_hwsm3_block_data_order(SM3_CTX *c, const void *p, size_t num);
+# endif
+#endif
+
+#if defined(HWSM3_CAPABLE)
+# define HASH_BLOCK_DATA_ORDER (HWSM3_CAPABLE ? ossl_hwsm3_block_data_order \
+ : ossl_sm3_block_data_order)
+#else
+# define HASH_BLOCK_DATA_ORDER ossl_sm3_block_data_order
+#endif
void ossl_sm3_block_data_order(SM3_CTX *c, const void *p, size_t num);
void ossl_sm3_transform(SM3_CTX *c, const unsigned char *data);
--
2.37.3.windows.1
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