| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 2014-2022 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | #
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| 4 | # Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | # this file except in compliance with the License. You can obtain a copy
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| 6 | # in the file LICENSE in the source distribution or at
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| 7 | # https://www.openssl.org/source/license.html
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| 8 |
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| 9 | #
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| 10 | # ====================================================================
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| 11 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
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| 12 | # project. The module is, however, dual licensed under OpenSSL and
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| 13 | # CRYPTOGAMS licenses depending on where you obtain it. For further
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| 14 | # details see http://www.openssl.org/~appro/cryptogams/.
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| 15 | # ====================================================================
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| 16 | #
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| 17 | # SHA1 for ARMv8.
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| 18 | #
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| 19 | # Performance in cycles per processed byte and improvement coefficient
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| 20 | # over code generated with "default" compiler:
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| 21 | #
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| 22 | # hardware-assisted software(*)
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| 23 | # Apple A7 2.31 4.13 (+14%)
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| 24 | # Cortex-A53 2.24 8.03 (+97%)
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| 25 | # Cortex-A57 2.35 7.88 (+74%)
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| 26 | # Denver 2.13 3.97 (+0%)(**)
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| 27 | # X-Gene 8.80 (+200%)
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| 28 | # Mongoose 2.05 6.50 (+160%)
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| 29 | # Kryo 1.88 8.00 (+90%)
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| 30 | # ThunderX2 2.64 6.36 (+150%)
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| 31 | #
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| 32 | # (*) Software results are presented mostly for reference purposes.
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| 33 | # (**) Keep in mind that Denver relies on binary translation, which
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| 34 | # optimizes compiler output at run-time.
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| 35 |
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| 36 | # $output is the last argument if it looks like a file (it has an extension)
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| 37 | # $flavour is the first argument if it doesn't look like a file
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| 38 | $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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| 39 | $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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| 40 |
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| 41 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 42 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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| 43 | ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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| 44 | die "can't locate arm-xlate.pl";
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| 45 |
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| 46 | open OUT,"| \"$^X\" $xlate $flavour \"$output\""
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| 47 | or die "can't call $xlate: $1";
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| 48 | *STDOUT=*OUT;
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| 49 |
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| 50 | ($ctx,$inp,$num)=("x0","x1","x2");
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| 51 | @Xw=map("w$_",(3..17,19));
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| 52 | @Xx=map("x$_",(3..17,19));
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| 53 | @V=($A,$B,$C,$D,$E)=map("w$_",(20..24));
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| 54 | ($t0,$t1,$t2,$K)=map("w$_",(25..28));
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| 55 |
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| 56 |
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| 57 | sub BODY_00_19 {
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| 58 | my ($i,$a,$b,$c,$d,$e)=@_;
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| 59 | my $j=($i+2)&15;
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| 60 |
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| 61 | $code.=<<___ if ($i<15 && !($i&1));
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| 62 | lsr @Xx[$i+1],@Xx[$i],#32
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| 63 | ___
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| 64 | $code.=<<___ if ($i<14 && !($i&1));
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| 65 | ldur @Xx[$i+2],[$inp,#`($i+2)*4-64`]
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| 66 | ___
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| 67 | $code.=<<___ if ($i<14 && ($i&1));
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| 68 | #ifdef __AARCH64EB__
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| 69 | ror @Xx[$i+1],@Xx[$i+1],#32
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| 70 | #else
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| 71 | rev32 @Xx[$i+1],@Xx[$i+1]
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| 72 | #endif
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| 73 | ___
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| 74 | $code.=<<___ if ($i<14);
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| 75 | bic $t0,$d,$b
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| 76 | and $t1,$c,$b
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| 77 | ror $t2,$a,#27
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| 78 | add $d,$d,$K // future e+=K
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| 79 | orr $t0,$t0,$t1
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| 80 | add $e,$e,$t2 // e+=rot(a,5)
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| 81 | ror $b,$b,#2
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| 82 | add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
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| 83 | add $e,$e,$t0 // e+=F(b,c,d)
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| 84 | ___
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| 85 | $code.=<<___ if ($i==19);
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| 86 | movz $K,#0xeba1
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| 87 | movk $K,#0x6ed9,lsl#16
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| 88 | ___
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| 89 | $code.=<<___ if ($i>=14);
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| 90 | eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
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| 91 | bic $t0,$d,$b
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| 92 | and $t1,$c,$b
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| 93 | ror $t2,$a,#27
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| 94 | eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
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| 95 | add $d,$d,$K // future e+=K
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| 96 | orr $t0,$t0,$t1
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| 97 | add $e,$e,$t2 // e+=rot(a,5)
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| 98 | eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
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| 99 | ror $b,$b,#2
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| 100 | add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
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| 101 | add $e,$e,$t0 // e+=F(b,c,d)
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| 102 | ror @Xw[$j],@Xw[$j],#31
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| 103 | ___
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| 104 | }
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| 105 |
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| 106 | sub BODY_40_59 {
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| 107 | my ($i,$a,$b,$c,$d,$e)=@_;
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| 108 | my $j=($i+2)&15;
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| 109 |
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| 110 | $code.=<<___ if ($i==59);
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| 111 | movz $K,#0xc1d6
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| 112 | movk $K,#0xca62,lsl#16
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| 113 | ___
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| 114 | $code.=<<___;
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| 115 | orr $t0,$b,$c
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| 116 | and $t1,$b,$c
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| 117 | eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
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| 118 | ror $t2,$a,#27
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| 119 | and $t0,$t0,$d
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| 120 | add $d,$d,$K // future e+=K
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| 121 | eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
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| 122 | add $e,$e,$t2 // e+=rot(a,5)
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| 123 | orr $t0,$t0,$t1
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| 124 | ror $b,$b,#2
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| 125 | eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
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| 126 | add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
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| 127 | add $e,$e,$t0 // e+=F(b,c,d)
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| 128 | ror @Xw[$j],@Xw[$j],#31
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| 129 | ___
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| 130 | }
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| 131 |
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| 132 | sub BODY_20_39 {
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| 133 | my ($i,$a,$b,$c,$d,$e)=@_;
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| 134 | my $j=($i+2)&15;
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| 135 |
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| 136 | $code.=<<___ if ($i==39);
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| 137 | movz $K,#0xbcdc
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| 138 | movk $K,#0x8f1b,lsl#16
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| 139 | ___
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| 140 | $code.=<<___ if ($i<78);
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| 141 | eor @Xw[$j],@Xw[$j],@Xw[($j+2)&15]
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| 142 | eor $t0,$d,$b
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| 143 | ror $t2,$a,#27
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| 144 | add $d,$d,$K // future e+=K
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| 145 | eor @Xw[$j],@Xw[$j],@Xw[($j+8)&15]
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| 146 | eor $t0,$t0,$c
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| 147 | add $e,$e,$t2 // e+=rot(a,5)
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| 148 | ror $b,$b,#2
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| 149 | eor @Xw[$j],@Xw[$j],@Xw[($j+13)&15]
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| 150 | add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
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| 151 | add $e,$e,$t0 // e+=F(b,c,d)
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| 152 | ror @Xw[$j],@Xw[$j],#31
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| 153 | ___
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| 154 | $code.=<<___ if ($i==78);
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| 155 | ldp @Xw[1],@Xw[2],[$ctx]
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| 156 | eor $t0,$d,$b
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| 157 | ror $t2,$a,#27
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| 158 | add $d,$d,$K // future e+=K
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| 159 | eor $t0,$t0,$c
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| 160 | add $e,$e,$t2 // e+=rot(a,5)
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| 161 | ror $b,$b,#2
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| 162 | add $d,$d,@Xw[($i+1)&15] // future e+=X[i]
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| 163 | add $e,$e,$t0 // e+=F(b,c,d)
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| 164 | ___
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| 165 | $code.=<<___ if ($i==79);
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| 166 | ldp @Xw[3],@Xw[4],[$ctx,#8]
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| 167 | eor $t0,$d,$b
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| 168 | ror $t2,$a,#27
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| 169 | eor $t0,$t0,$c
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| 170 | add $e,$e,$t2 // e+=rot(a,5)
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| 171 | ror $b,$b,#2
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| 172 | ldr @Xw[5],[$ctx,#16]
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| 173 | add $e,$e,$t0 // e+=F(b,c,d)
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| 174 | ___
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| 175 | }
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| 176 |
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| 177 | $code.=<<___;
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| 178 | #include "arm_arch.h"
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| 179 | #ifndef __KERNEL__
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| 180 | .extern OPENSSL_armcap_P
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| 181 | .hidden OPENSSL_armcap_P
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| 182 | #endif
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| 183 |
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| 184 | .text
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| 185 |
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| 186 | .globl sha1_block_data_order
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| 187 | .type sha1_block_data_order,%function
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| 188 | .align 6
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| 189 | sha1_block_data_order:
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| 190 | AARCH64_VALID_CALL_TARGET
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| 191 | adrp x16,OPENSSL_armcap_P
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| 192 | ldr w16,[x16,#:lo12:OPENSSL_armcap_P]
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| 193 | tst w16,#ARMV8_SHA1
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| 194 | b.ne .Lv8_entry
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| 195 |
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| 196 | // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
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| 197 | stp x29,x30,[sp,#-96]!
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| 198 | add x29,sp,#0
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| 199 | stp x19,x20,[sp,#16]
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| 200 | stp x21,x22,[sp,#32]
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| 201 | stp x23,x24,[sp,#48]
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| 202 | stp x25,x26,[sp,#64]
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| 203 | stp x27,x28,[sp,#80]
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| 204 |
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| 205 | ldp $A,$B,[$ctx]
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| 206 | ldp $C,$D,[$ctx,#8]
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| 207 | ldr $E,[$ctx,#16]
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| 208 |
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| 209 | .Loop:
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| 210 | ldr @Xx[0],[$inp],#64
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| 211 | movz $K,#0x7999
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| 212 | sub $num,$num,#1
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| 213 | movk $K,#0x5a82,lsl#16
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| 214 | #ifdef __AARCH64EB__
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| 215 | ror $Xx[0],@Xx[0],#32
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| 216 | #else
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| 217 | rev32 @Xx[0],@Xx[0]
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| 218 | #endif
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| 219 | add $E,$E,$K // warm it up
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| 220 | add $E,$E,@Xw[0]
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| 221 | ___
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| 222 | for($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
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| 223 | for(;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
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| 224 | for(;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
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| 225 | for(;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
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| 226 | $code.=<<___;
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| 227 | add $B,$B,@Xw[2]
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| 228 | add $C,$C,@Xw[3]
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| 229 | add $A,$A,@Xw[1]
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| 230 | add $D,$D,@Xw[4]
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| 231 | add $E,$E,@Xw[5]
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| 232 | stp $A,$B,[$ctx]
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| 233 | stp $C,$D,[$ctx,#8]
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| 234 | str $E,[$ctx,#16]
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| 235 | cbnz $num,.Loop
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| 236 |
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| 237 | ldp x19,x20,[sp,#16]
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| 238 | ldp x21,x22,[sp,#32]
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| 239 | ldp x23,x24,[sp,#48]
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| 240 | ldp x25,x26,[sp,#64]
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| 241 | ldp x27,x28,[sp,#80]
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| 242 | ldr x29,[sp],#96
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| 243 | ret
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| 244 | .size sha1_block_data_order,.-sha1_block_data_order
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| 245 | ___
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| 246 | {{{
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| 247 | my ($ABCD,$E,$E0,$E1)=map("v$_.16b",(0..3));
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| 248 | my @MSG=map("v$_.16b",(4..7));
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| 249 | my @Kxx=map("v$_.4s",(16..19));
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| 250 | my ($W0,$W1)=("v20.4s","v21.4s");
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| 251 | my $ABCD_SAVE="v22.16b";
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| 252 |
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| 253 | $code.=<<___;
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| 254 | .type sha1_block_armv8,%function
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| 255 | .align 6
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| 256 | sha1_block_armv8:
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| 257 | .Lv8_entry:
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| 258 | // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
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| 259 | stp x29,x30,[sp,#-16]!
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| 260 | add x29,sp,#0
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| 261 |
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| 262 | adr x4,.Lconst
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| 263 | eor $E,$E,$E
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| 264 | ld1.32 {$ABCD},[$ctx],#16
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| 265 | ld1.32 {$E}[0],[$ctx]
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| 266 | sub $ctx,$ctx,#16
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| 267 | ld1.32 {@Kxx[0]-@Kxx[3]},[x4]
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| 268 |
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| 269 | .Loop_hw:
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| 270 | ld1 {@MSG[0]-@MSG[3]},[$inp],#64
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| 271 | sub $num,$num,#1
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| 272 | rev32 @MSG[0],@MSG[0]
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| 273 | rev32 @MSG[1],@MSG[1]
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| 274 |
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| 275 | add.i32 $W0,@Kxx[0],@MSG[0]
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| 276 | rev32 @MSG[2],@MSG[2]
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| 277 | orr $ABCD_SAVE,$ABCD,$ABCD // offload
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| 278 |
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| 279 | add.i32 $W1,@Kxx[0],@MSG[1]
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| 280 | rev32 @MSG[3],@MSG[3]
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| 281 | sha1h $E1,$ABCD
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| 282 | sha1c $ABCD,$E,$W0 // 0
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| 283 | add.i32 $W0,@Kxx[$j],@MSG[2]
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| 284 | sha1su0 @MSG[0],@MSG[1],@MSG[2]
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| 285 | ___
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| 286 | for ($j=0,$i=1;$i<20-3;$i++) {
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| 287 | my $f=("c","p","m","p")[$i/5];
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| 288 | $code.=<<___;
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| 289 | sha1h $E0,$ABCD // $i
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| 290 | sha1$f $ABCD,$E1,$W1
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| 291 | add.i32 $W1,@Kxx[$j],@MSG[3]
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| 292 | sha1su1 @MSG[0],@MSG[3]
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| 293 | ___
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| 294 | $code.=<<___ if ($i<20-4);
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| 295 | sha1su0 @MSG[1],@MSG[2],@MSG[3]
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| 296 | ___
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| 297 | ($E0,$E1)=($E1,$E0); ($W0,$W1)=($W1,$W0);
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| 298 | push(@MSG,shift(@MSG)); $j++ if ((($i+3)%5)==0);
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| 299 | }
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| 300 | $code.=<<___;
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| 301 | sha1h $E0,$ABCD // $i
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| 302 | sha1p $ABCD,$E1,$W1
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| 303 | add.i32 $W1,@Kxx[$j],@MSG[3]
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| 304 |
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| 305 | sha1h $E1,$ABCD // 18
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| 306 | sha1p $ABCD,$E0,$W0
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| 307 |
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| 308 | sha1h $E0,$ABCD // 19
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| 309 | sha1p $ABCD,$E1,$W1
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| 310 |
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| 311 | add.i32 $E,$E,$E0
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| 312 | add.i32 $ABCD,$ABCD,$ABCD_SAVE
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| 313 |
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| 314 | cbnz $num,.Loop_hw
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| 315 |
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| 316 | st1.32 {$ABCD},[$ctx],#16
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| 317 | st1.32 {$E}[0],[$ctx]
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| 318 |
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| 319 | ldr x29,[sp],#16
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| 320 | ret
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| 321 | .size sha1_block_armv8,.-sha1_block_armv8
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| 322 | .align 6
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| 323 | .Lconst:
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| 324 | .long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 //K_00_19
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| 325 | .long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 //K_20_39
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| 326 | .long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc //K_40_59
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| 327 | .long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 //K_60_79
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| 328 | .asciz "SHA1 block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
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| 329 | .align 2
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| 330 | ___
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| 331 | }}}
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| 332 |
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| 333 | { my %opcode = (
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| 334 | "sha1c" => 0x5e000000, "sha1p" => 0x5e001000,
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| 335 | "sha1m" => 0x5e002000, "sha1su0" => 0x5e003000,
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| 336 | "sha1h" => 0x5e280800, "sha1su1" => 0x5e281800 );
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| 337 |
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| 338 | sub unsha1 {
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| 339 | my ($mnemonic,$arg)=@_;
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| 340 |
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| 341 | $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
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| 342 | &&
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| 343 | sprintf ".inst\t0x%08x\t//%s %s",
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| 344 | $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
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| 345 | $mnemonic,$arg;
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| 346 | }
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| 347 | }
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| 348 |
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| 349 | foreach(split("\n",$code)) {
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| 350 |
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| 351 | s/\`([^\`]*)\`/eval($1)/geo;
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| 352 |
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| 353 | s/\b(sha1\w+)\s+([qv].*)/unsha1($1,$2)/geo;
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| 354 |
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| 355 | s/\.\w?32\b//o and s/\.16b/\.4s/go;
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| 356 | m/(ld|st)1[^\[]+\[0\]/o and s/\.4s/\.s/go;
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| 357 |
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| 358 | print $_,"\n";
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| 359 | }
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| 360 |
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| 361 | close STDOUT or die "error closing STDOUT: $!";
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