| 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 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
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| 11 | # project. The module is, however, dual licensed under OpenSSL and
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| 12 | # CRYPTOGAMS licenses depending on where you obtain it. For further
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| 13 | # details see http://www.openssl.org/~appro/cryptogams/.
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| 14 | #
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| 15 | # Permission to use under GPLv2 terms is granted.
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| 16 | # ====================================================================
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| 17 | #
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| 18 | # SHA256/512 for ARMv8.
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| 19 | #
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| 20 | # Performance in cycles per processed byte and improvement coefficient
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| 21 | # over code generated with "default" compiler:
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| 22 | #
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| 23 | # SHA256-hw SHA256(*) SHA512
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| 24 | # Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**))
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| 25 | # Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***))
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| 26 | # Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***))
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| 27 | # Denver 2.01 10.5 (+26%) 6.70 (+8%)
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| 28 | # X-Gene 20.0 (+100%) 12.8 (+300%(***))
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| 29 | # Mongoose 2.36 13.0 (+50%) 8.36 (+33%)
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| 30 | # Kryo 1.92 17.4 (+30%) 11.2 (+8%)
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| 31 | # ThunderX2 2.54 13.2 (+40%) 8.40 (+18%)
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| 32 | #
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| 33 | # (*) Software SHA256 results are of lesser relevance, presented
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| 34 | # mostly for informational purposes.
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| 35 | # (**) The result is a trade-off: it's possible to improve it by
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| 36 | # 10% (or by 1 cycle per round), but at the cost of 20% loss
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| 37 | # on Cortex-A53 (or by 4 cycles per round).
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| 38 | # (***) Super-impressive coefficients over gcc-generated code are
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| 39 | # indication of some compiler "pathology", most notably code
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| 40 | # generated with -mgeneral-regs-only is significantly faster
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| 41 | # and the gap is only 40-90%.
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| 42 | #
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| 43 | # October 2016.
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| 44 | #
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| 45 | # Originally it was reckoned that it makes no sense to implement NEON
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| 46 | # version of SHA256 for 64-bit processors. This is because performance
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| 47 | # improvement on most wide-spread Cortex-A5x processors was observed
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| 48 | # to be marginal, same on Cortex-A53 and ~10% on A57. But then it was
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| 49 | # observed that 32-bit NEON SHA256 performs significantly better than
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| 50 | # 64-bit scalar version on *some* of the more recent processors. As
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| 51 | # result 64-bit NEON version of SHA256 was added to provide best
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| 52 | # all-round performance. For example it executes ~30% faster on X-Gene
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| 53 | # and Mongoose. [For reference, NEON version of SHA512 is bound to
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| 54 | # deliver much less improvement, likely *negative* on Cortex-A5x.
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| 55 | # Which is why NEON support is limited to SHA256.]
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| 56 |
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| 57 | # $output is the last argument if it looks like a file (it has an extension)
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| 58 | # $flavour is the first argument if it doesn't look like a file
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| 59 | $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
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| 60 | $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
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| 61 |
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| 62 | if ($flavour && $flavour ne "void") {
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| 63 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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| 64 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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| 65 | ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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| 66 | die "can't locate arm-xlate.pl";
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| 67 |
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| 68 | open OUT,"| \"$^X\" $xlate $flavour \"$output\""
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| 69 | or die "can't call $xlate: $!";
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| 70 | *STDOUT=*OUT;
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| 71 | } else {
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| 72 | $output and open STDOUT,">$output";
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| 73 | }
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| 74 |
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| 75 | if ($output =~ /512/) {
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| 76 | $BITS=512;
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| 77 | $SZ=8;
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| 78 | @Sigma0=(28,34,39);
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| 79 | @Sigma1=(14,18,41);
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| 80 | @sigma0=(1, 8, 7);
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| 81 | @sigma1=(19,61, 6);
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| 82 | $rounds=80;
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| 83 | $reg_t="x";
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| 84 | } else {
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| 85 | $BITS=256;
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| 86 | $SZ=4;
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| 87 | @Sigma0=( 2,13,22);
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| 88 | @Sigma1=( 6,11,25);
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| 89 | @sigma0=( 7,18, 3);
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| 90 | @sigma1=(17,19,10);
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| 91 | $rounds=64;
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| 92 | $reg_t="w";
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| 93 | }
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| 94 |
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| 95 | $func="sha${BITS}_block_data_order";
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| 96 |
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| 97 | ($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30));
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| 98 |
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| 99 | @X=map("$reg_t$_",(3..15,0..2));
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| 100 | @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27));
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| 101 | ($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28));
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| 102 |
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| 103 | sub BODY_00_xx {
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| 104 | my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
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| 105 | my $j=($i+1)&15;
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| 106 | my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]);
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| 107 | $T0=@X[$i+3] if ($i<11);
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| 108 |
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| 109 | $code.=<<___ if ($i<16);
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| 110 | #ifndef __AARCH64EB__
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| 111 | rev @X[$i],@X[$i] // $i
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| 112 | #endif
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| 113 | ___
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| 114 | $code.=<<___ if ($i<13 && ($i&1));
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| 115 | ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ
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| 116 | ___
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| 117 | $code.=<<___ if ($i==13);
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| 118 | ldp @X[14],@X[15],[$inp]
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| 119 | ___
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| 120 | $code.=<<___ if ($i>=14);
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| 121 | ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`]
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| 122 | ___
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| 123 | $code.=<<___ if ($i>0 && $i<16);
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| 124 | add $a,$a,$t1 // h+=Sigma0(a)
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| 125 | ___
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| 126 | $code.=<<___ if ($i>=11);
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| 127 | str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`]
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| 128 | ___
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| 129 | # While ARMv8 specifies merged rotate-n-logical operation such as
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| 130 | # 'eor x,y,z,ror#n', it was found to negatively affect performance
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| 131 | # on Apple A7. The reason seems to be that it requires even 'y' to
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| 132 | # be available earlier. This means that such merged instruction is
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| 133 | # not necessarily best choice on critical path... On the other hand
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| 134 | # Cortex-A5x handles merged instructions much better than disjoint
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| 135 | # rotate and logical... See (**) footnote above.
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| 136 | $code.=<<___ if ($i<15);
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| 137 | ror $t0,$e,#$Sigma1[0]
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| 138 | add $h,$h,$t2 // h+=K[i]
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| 139 | eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]`
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| 140 | and $t1,$f,$e
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| 141 | bic $t2,$g,$e
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| 142 | add $h,$h,@X[$i&15] // h+=X[i]
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| 143 | orr $t1,$t1,$t2 // Ch(e,f,g)
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| 144 | eor $t2,$a,$b // a^b, b^c in next round
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| 145 | eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e)
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| 146 | ror $T0,$a,#$Sigma0[0]
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| 147 | add $h,$h,$t1 // h+=Ch(e,f,g)
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| 148 | eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]`
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| 149 | add $h,$h,$t0 // h+=Sigma1(e)
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| 150 | and $t3,$t3,$t2 // (b^c)&=(a^b)
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| 151 | add $d,$d,$h // d+=h
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| 152 | eor $t3,$t3,$b // Maj(a,b,c)
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| 153 | eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a)
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| 154 | add $h,$h,$t3 // h+=Maj(a,b,c)
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| 155 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
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| 156 | //add $h,$h,$t1 // h+=Sigma0(a)
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| 157 | ___
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| 158 | $code.=<<___ if ($i>=15);
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| 159 | ror $t0,$e,#$Sigma1[0]
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| 160 | add $h,$h,$t2 // h+=K[i]
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| 161 | ror $T1,@X[($j+1)&15],#$sigma0[0]
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| 162 | and $t1,$f,$e
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| 163 | ror $T2,@X[($j+14)&15],#$sigma1[0]
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| 164 | bic $t2,$g,$e
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| 165 | ror $T0,$a,#$Sigma0[0]
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| 166 | add $h,$h,@X[$i&15] // h+=X[i]
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| 167 | eor $t0,$t0,$e,ror#$Sigma1[1]
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| 168 | eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1]
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| 169 | orr $t1,$t1,$t2 // Ch(e,f,g)
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| 170 | eor $t2,$a,$b // a^b, b^c in next round
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| 171 | eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e)
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| 172 | eor $T0,$T0,$a,ror#$Sigma0[1]
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| 173 | add $h,$h,$t1 // h+=Ch(e,f,g)
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| 174 | and $t3,$t3,$t2 // (b^c)&=(a^b)
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| 175 | eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1]
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| 176 | eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1])
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| 177 | add $h,$h,$t0 // h+=Sigma1(e)
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| 178 | eor $t3,$t3,$b // Maj(a,b,c)
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| 179 | eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a)
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| 180 | eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14])
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| 181 | add @X[$j],@X[$j],@X[($j+9)&15]
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| 182 | add $d,$d,$h // d+=h
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| 183 | add $h,$h,$t3 // h+=Maj(a,b,c)
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| 184 | ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
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| 185 | add @X[$j],@X[$j],$T1
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| 186 | add $h,$h,$t1 // h+=Sigma0(a)
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| 187 | add @X[$j],@X[$j],$T2
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| 188 | ___
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| 189 | ($t2,$t3)=($t3,$t2);
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| 190 | }
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| 191 |
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| 192 | $code.=<<___;
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| 193 | #include "arm_arch.h"
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| 194 | #ifndef __KERNEL__
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| 195 | .extern OPENSSL_armcap_P
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| 196 | .hidden OPENSSL_armcap_P
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| 197 | #endif
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| 198 |
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| 199 | .text
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| 200 |
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| 201 | .globl $func
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| 202 | .type $func,%function
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| 203 | .align 6
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| 204 | $func:
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| 205 | AARCH64_VALID_CALL_TARGET
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| 206 | #ifndef __KERNEL__
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| 207 | adrp x16,OPENSSL_armcap_P
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| 208 | ldr w16,[x16,#:lo12:OPENSSL_armcap_P]
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| 209 | ___
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| 210 | $code.=<<___ if ($SZ==4);
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| 211 | tst w16,#ARMV8_SHA256
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| 212 | b.ne .Lv8_entry
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| 213 | tst w16,#ARMV7_NEON
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| 214 | b.ne .Lneon_entry
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| 215 | ___
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| 216 | $code.=<<___ if ($SZ==8);
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| 217 | tst w16,#ARMV8_SHA512
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| 218 | b.ne .Lv8_entry
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| 219 | ___
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| 220 | $code.=<<___;
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| 221 | #endif
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| 222 | AARCH64_SIGN_LINK_REGISTER
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| 223 | stp x29,x30,[sp,#-128]!
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| 224 | add x29,sp,#0
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| 225 |
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| 226 | stp x19,x20,[sp,#16]
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| 227 | stp x21,x22,[sp,#32]
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| 228 | stp x23,x24,[sp,#48]
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| 229 | stp x25,x26,[sp,#64]
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| 230 | stp x27,x28,[sp,#80]
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| 231 | sub sp,sp,#4*$SZ
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| 232 |
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| 233 | ldp $A,$B,[$ctx] // load context
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| 234 | ldp $C,$D,[$ctx,#2*$SZ]
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| 235 | ldp $E,$F,[$ctx,#4*$SZ]
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| 236 | add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input
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| 237 | ldp $G,$H,[$ctx,#6*$SZ]
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| 238 | adr $Ktbl,.LK$BITS
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| 239 | stp $ctx,$num,[x29,#96]
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| 240 |
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| 241 | .Loop:
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| 242 | ldp @X[0],@X[1],[$inp],#2*$SZ
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| 243 | ldr $t2,[$Ktbl],#$SZ // *K++
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| 244 | eor $t3,$B,$C // magic seed
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| 245 | str $inp,[x29,#112]
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| 246 | ___
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| 247 | for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
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| 248 | $code.=".Loop_16_xx:\n";
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| 249 | for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
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| 250 | $code.=<<___;
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| 251 | cbnz $t2,.Loop_16_xx
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| 252 |
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| 253 | ldp $ctx,$num,[x29,#96]
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| 254 | ldr $inp,[x29,#112]
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| 255 | sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind
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| 256 |
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| 257 | ldp @X[0],@X[1],[$ctx]
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| 258 | ldp @X[2],@X[3],[$ctx,#2*$SZ]
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| 259 | add $inp,$inp,#14*$SZ // advance input pointer
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| 260 | ldp @X[4],@X[5],[$ctx,#4*$SZ]
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| 261 | add $A,$A,@X[0]
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| 262 | ldp @X[6],@X[7],[$ctx,#6*$SZ]
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| 263 | add $B,$B,@X[1]
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| 264 | add $C,$C,@X[2]
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| 265 | add $D,$D,@X[3]
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| 266 | stp $A,$B,[$ctx]
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| 267 | add $E,$E,@X[4]
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| 268 | add $F,$F,@X[5]
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| 269 | stp $C,$D,[$ctx,#2*$SZ]
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| 270 | add $G,$G,@X[6]
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| 271 | add $H,$H,@X[7]
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| 272 | cmp $inp,$num
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| 273 | stp $E,$F,[$ctx,#4*$SZ]
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| 274 | stp $G,$H,[$ctx,#6*$SZ]
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| 275 | b.ne .Loop
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| 276 |
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| 277 | ldp x19,x20,[x29,#16]
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| 278 | add sp,sp,#4*$SZ
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| 279 | ldp x21,x22,[x29,#32]
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| 280 | ldp x23,x24,[x29,#48]
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| 281 | ldp x25,x26,[x29,#64]
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| 282 | ldp x27,x28,[x29,#80]
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| 283 | ldp x29,x30,[sp],#128
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| 284 | AARCH64_VALIDATE_LINK_REGISTER
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| 285 | ret
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| 286 | .size $func,.-$func
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| 287 |
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| 288 | .align 6
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| 289 | .type .LK$BITS,%object
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| 290 | .LK$BITS:
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| 291 | ___
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| 292 | $code.=<<___ if ($SZ==8);
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| 293 | .quad 0x428a2f98d728ae22,0x7137449123ef65cd
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| 294 | .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
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| 295 | .quad 0x3956c25bf348b538,0x59f111f1b605d019
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| 296 | .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
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| 297 | .quad 0xd807aa98a3030242,0x12835b0145706fbe
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| 298 | .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
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| 299 | .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
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| 300 | .quad 0x9bdc06a725c71235,0xc19bf174cf692694
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| 301 | .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
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| 302 | .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
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| 303 | .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
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| 304 | .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
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| 305 | .quad 0x983e5152ee66dfab,0xa831c66d2db43210
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| 306 | .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
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| 307 | .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
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| 308 | .quad 0x06ca6351e003826f,0x142929670a0e6e70
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| 309 | .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
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| 310 | .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
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| 311 | .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
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| 312 | .quad 0x81c2c92e47edaee6,0x92722c851482353b
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| 313 | .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
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| 314 | .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
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| 315 | .quad 0xd192e819d6ef5218,0xd69906245565a910
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| 316 | .quad 0xf40e35855771202a,0x106aa07032bbd1b8
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| 317 | .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
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| 318 | .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
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| 319 | .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
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| 320 | .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
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| 321 | .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
|
|---|
| 322 | .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
|
|---|
| 323 | .quad 0x90befffa23631e28,0xa4506cebde82bde9
|
|---|
| 324 | .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
|
|---|
| 325 | .quad 0xca273eceea26619c,0xd186b8c721c0c207
|
|---|
| 326 | .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
|
|---|
| 327 | .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
|
|---|
| 328 | .quad 0x113f9804bef90dae,0x1b710b35131c471b
|
|---|
| 329 | .quad 0x28db77f523047d84,0x32caab7b40c72493
|
|---|
| 330 | .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
|
|---|
| 331 | .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
|
|---|
| 332 | .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
|
|---|
| 333 | .quad 0 // terminator
|
|---|
| 334 | ___
|
|---|
| 335 | $code.=<<___ if ($SZ==4);
|
|---|
| 336 | .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
|
|---|
| 337 | .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
|
|---|
| 338 | .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
|
|---|
| 339 | .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
|
|---|
| 340 | .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
|
|---|
| 341 | .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
|
|---|
| 342 | .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
|
|---|
| 343 | .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
|
|---|
| 344 | .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
|
|---|
| 345 | .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
|
|---|
| 346 | .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
|
|---|
| 347 | .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
|
|---|
| 348 | .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
|
|---|
| 349 | .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
|
|---|
| 350 | .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
|
|---|
| 351 | .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
|---|
| 352 | .long 0 //terminator
|
|---|
| 353 | ___
|
|---|
| 354 | $code.=<<___;
|
|---|
| 355 | .size .LK$BITS,.-.LK$BITS
|
|---|
| 356 | .asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
|
|---|
| 357 | .align 2
|
|---|
| 358 | ___
|
|---|
| 359 |
|
|---|
| 360 | if ($SZ==4) {
|
|---|
| 361 | my $Ktbl="x3";
|
|---|
| 362 |
|
|---|
| 363 | my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2));
|
|---|
| 364 | my @MSG=map("v$_.16b",(4..7));
|
|---|
| 365 | my ($W0,$W1)=("v16.4s","v17.4s");
|
|---|
| 366 | my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b");
|
|---|
| 367 |
|
|---|
| 368 | $code.=<<___;
|
|---|
| 369 | #ifndef __KERNEL__
|
|---|
| 370 | .type sha256_block_armv8,%function
|
|---|
| 371 | .align 6
|
|---|
| 372 | sha256_block_armv8:
|
|---|
| 373 | .Lv8_entry:
|
|---|
| 374 | // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
|
|---|
| 375 | stp x29,x30,[sp,#-16]!
|
|---|
| 376 | add x29,sp,#0
|
|---|
| 377 |
|
|---|
| 378 | ld1.32 {$ABCD,$EFGH},[$ctx]
|
|---|
| 379 | adr $Ktbl,.LK256
|
|---|
| 380 |
|
|---|
| 381 | .Loop_hw:
|
|---|
| 382 | ld1 {@MSG[0]-@MSG[3]},[$inp],#64
|
|---|
| 383 | sub $num,$num,#1
|
|---|
| 384 | ld1.32 {$W0},[$Ktbl],#16
|
|---|
| 385 | rev32 @MSG[0],@MSG[0]
|
|---|
| 386 | rev32 @MSG[1],@MSG[1]
|
|---|
| 387 | rev32 @MSG[2],@MSG[2]
|
|---|
| 388 | rev32 @MSG[3],@MSG[3]
|
|---|
| 389 | orr $ABCD_SAVE,$ABCD,$ABCD // offload
|
|---|
| 390 | orr $EFGH_SAVE,$EFGH,$EFGH
|
|---|
| 391 | ___
|
|---|
| 392 | for($i=0;$i<12;$i++) {
|
|---|
| 393 | $code.=<<___;
|
|---|
| 394 | ld1.32 {$W1},[$Ktbl],#16
|
|---|
| 395 | add.i32 $W0,$W0,@MSG[0]
|
|---|
| 396 | sha256su0 @MSG[0],@MSG[1]
|
|---|
| 397 | orr $abcd,$ABCD,$ABCD
|
|---|
| 398 | sha256h $ABCD,$EFGH,$W0
|
|---|
| 399 | sha256h2 $EFGH,$abcd,$W0
|
|---|
| 400 | sha256su1 @MSG[0],@MSG[2],@MSG[3]
|
|---|
| 401 | ___
|
|---|
| 402 | ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
|
|---|
| 403 | }
|
|---|
| 404 | $code.=<<___;
|
|---|
| 405 | ld1.32 {$W1},[$Ktbl],#16
|
|---|
| 406 | add.i32 $W0,$W0,@MSG[0]
|
|---|
| 407 | orr $abcd,$ABCD,$ABCD
|
|---|
| 408 | sha256h $ABCD,$EFGH,$W0
|
|---|
| 409 | sha256h2 $EFGH,$abcd,$W0
|
|---|
| 410 |
|
|---|
| 411 | ld1.32 {$W0},[$Ktbl],#16
|
|---|
| 412 | add.i32 $W1,$W1,@MSG[1]
|
|---|
| 413 | orr $abcd,$ABCD,$ABCD
|
|---|
| 414 | sha256h $ABCD,$EFGH,$W1
|
|---|
| 415 | sha256h2 $EFGH,$abcd,$W1
|
|---|
| 416 |
|
|---|
| 417 | ld1.32 {$W1},[$Ktbl]
|
|---|
| 418 | add.i32 $W0,$W0,@MSG[2]
|
|---|
| 419 | sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind
|
|---|
| 420 | orr $abcd,$ABCD,$ABCD
|
|---|
| 421 | sha256h $ABCD,$EFGH,$W0
|
|---|
| 422 | sha256h2 $EFGH,$abcd,$W0
|
|---|
| 423 |
|
|---|
| 424 | add.i32 $W1,$W1,@MSG[3]
|
|---|
| 425 | orr $abcd,$ABCD,$ABCD
|
|---|
| 426 | sha256h $ABCD,$EFGH,$W1
|
|---|
| 427 | sha256h2 $EFGH,$abcd,$W1
|
|---|
| 428 |
|
|---|
| 429 | add.i32 $ABCD,$ABCD,$ABCD_SAVE
|
|---|
| 430 | add.i32 $EFGH,$EFGH,$EFGH_SAVE
|
|---|
| 431 |
|
|---|
| 432 | cbnz $num,.Loop_hw
|
|---|
| 433 |
|
|---|
| 434 | st1.32 {$ABCD,$EFGH},[$ctx]
|
|---|
| 435 |
|
|---|
| 436 | ldr x29,[sp],#16
|
|---|
| 437 | ret
|
|---|
| 438 | .size sha256_block_armv8,.-sha256_block_armv8
|
|---|
| 439 | #endif
|
|---|
| 440 | ___
|
|---|
| 441 | }
|
|---|
| 442 |
|
|---|
| 443 | if ($SZ==4) { ######################################### NEON stuff #
|
|---|
| 444 | # You'll surely note a lot of similarities with sha256-armv4 module,
|
|---|
| 445 | # and of course it's not a coincidence. sha256-armv4 was used as
|
|---|
| 446 | # initial template, but was adapted for ARMv8 instruction set and
|
|---|
| 447 | # extensively re-tuned for all-round performance.
|
|---|
| 448 |
|
|---|
| 449 | my @V = ($A,$B,$C,$D,$E,$F,$G,$H) = map("w$_",(3..10));
|
|---|
| 450 | my ($t0,$t1,$t2,$t3,$t4) = map("w$_",(11..15));
|
|---|
| 451 | my $Ktbl="x16";
|
|---|
| 452 | my $Xfer="x17";
|
|---|
| 453 | my @X = map("q$_",(0..3));
|
|---|
| 454 | my ($T0,$T1,$T2,$T3,$T4,$T5,$T6,$T7) = map("q$_",(4..7,16..19));
|
|---|
| 455 | my $j=0;
|
|---|
| 456 |
|
|---|
| 457 | sub AUTOLOAD() # thunk [simplified] x86-style perlasm
|
|---|
| 458 | { my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
|
|---|
| 459 | my $arg = pop;
|
|---|
| 460 | $arg = "#$arg" if ($arg*1 eq $arg);
|
|---|
| 461 | $code .= "\t$opcode\t".join(',',@_,$arg)."\n";
|
|---|
| 462 | }
|
|---|
| 463 |
|
|---|
| 464 | sub Dscalar { shift =~ m|[qv]([0-9]+)|?"d$1":""; }
|
|---|
| 465 | sub Dlo { shift =~ m|[qv]([0-9]+)|?"v$1.d[0]":""; }
|
|---|
| 466 | sub Dhi { shift =~ m|[qv]([0-9]+)|?"v$1.d[1]":""; }
|
|---|
| 467 |
|
|---|
| 468 | sub Xupdate()
|
|---|
| 469 | { use integer;
|
|---|
| 470 | my $body = shift;
|
|---|
| 471 | my @insns = (&$body,&$body,&$body,&$body);
|
|---|
| 472 | my ($a,$b,$c,$d,$e,$f,$g,$h);
|
|---|
| 473 |
|
|---|
| 474 | &ext_8 ($T0,@X[0],@X[1],4); # X[1..4]
|
|---|
| 475 | eval(shift(@insns));
|
|---|
| 476 | eval(shift(@insns));
|
|---|
| 477 | eval(shift(@insns));
|
|---|
| 478 | &ext_8 ($T3,@X[2],@X[3],4); # X[9..12]
|
|---|
| 479 | eval(shift(@insns));
|
|---|
| 480 | eval(shift(@insns));
|
|---|
| 481 | &mov (&Dscalar($T7),&Dhi(@X[3])); # X[14..15]
|
|---|
| 482 | eval(shift(@insns));
|
|---|
| 483 | eval(shift(@insns));
|
|---|
| 484 | &ushr_32 ($T2,$T0,$sigma0[0]);
|
|---|
| 485 | eval(shift(@insns));
|
|---|
| 486 | &ushr_32 ($T1,$T0,$sigma0[2]);
|
|---|
| 487 | eval(shift(@insns));
|
|---|
| 488 | &add_32 (@X[0],@X[0],$T3); # X[0..3] += X[9..12]
|
|---|
| 489 | eval(shift(@insns));
|
|---|
| 490 | &sli_32 ($T2,$T0,32-$sigma0[0]);
|
|---|
| 491 | eval(shift(@insns));
|
|---|
| 492 | eval(shift(@insns));
|
|---|
| 493 | &ushr_32 ($T3,$T0,$sigma0[1]);
|
|---|
| 494 | eval(shift(@insns));
|
|---|
| 495 | eval(shift(@insns));
|
|---|
| 496 | &eor_8 ($T1,$T1,$T2);
|
|---|
| 497 | eval(shift(@insns));
|
|---|
| 498 | eval(shift(@insns));
|
|---|
| 499 | &sli_32 ($T3,$T0,32-$sigma0[1]);
|
|---|
| 500 | eval(shift(@insns));
|
|---|
| 501 | eval(shift(@insns));
|
|---|
| 502 | &ushr_32 ($T4,$T7,$sigma1[0]);
|
|---|
| 503 | eval(shift(@insns));
|
|---|
| 504 | eval(shift(@insns));
|
|---|
| 505 | &eor_8 ($T1,$T1,$T3); # sigma0(X[1..4])
|
|---|
| 506 | eval(shift(@insns));
|
|---|
| 507 | eval(shift(@insns));
|
|---|
| 508 | &sli_32 ($T4,$T7,32-$sigma1[0]);
|
|---|
| 509 | eval(shift(@insns));
|
|---|
| 510 | eval(shift(@insns));
|
|---|
| 511 | &ushr_32 ($T5,$T7,$sigma1[2]);
|
|---|
| 512 | eval(shift(@insns));
|
|---|
| 513 | eval(shift(@insns));
|
|---|
| 514 | &ushr_32 ($T3,$T7,$sigma1[1]);
|
|---|
| 515 | eval(shift(@insns));
|
|---|
| 516 | eval(shift(@insns));
|
|---|
| 517 | &add_32 (@X[0],@X[0],$T1); # X[0..3] += sigma0(X[1..4])
|
|---|
| 518 | eval(shift(@insns));
|
|---|
| 519 | eval(shift(@insns));
|
|---|
| 520 | &sli_u32 ($T3,$T7,32-$sigma1[1]);
|
|---|
| 521 | eval(shift(@insns));
|
|---|
| 522 | eval(shift(@insns));
|
|---|
| 523 | &eor_8 ($T5,$T5,$T4);
|
|---|
| 524 | eval(shift(@insns));
|
|---|
| 525 | eval(shift(@insns));
|
|---|
| 526 | eval(shift(@insns));
|
|---|
| 527 | &eor_8 ($T5,$T5,$T3); # sigma1(X[14..15])
|
|---|
| 528 | eval(shift(@insns));
|
|---|
| 529 | eval(shift(@insns));
|
|---|
| 530 | eval(shift(@insns));
|
|---|
| 531 | &add_32 (@X[0],@X[0],$T5); # X[0..1] += sigma1(X[14..15])
|
|---|
| 532 | eval(shift(@insns));
|
|---|
| 533 | eval(shift(@insns));
|
|---|
| 534 | eval(shift(@insns));
|
|---|
| 535 | &ushr_32 ($T6,@X[0],$sigma1[0]);
|
|---|
| 536 | eval(shift(@insns));
|
|---|
| 537 | &ushr_32 ($T7,@X[0],$sigma1[2]);
|
|---|
| 538 | eval(shift(@insns));
|
|---|
| 539 | eval(shift(@insns));
|
|---|
| 540 | &sli_32 ($T6,@X[0],32-$sigma1[0]);
|
|---|
| 541 | eval(shift(@insns));
|
|---|
| 542 | &ushr_32 ($T5,@X[0],$sigma1[1]);
|
|---|
| 543 | eval(shift(@insns));
|
|---|
| 544 | eval(shift(@insns));
|
|---|
| 545 | &eor_8 ($T7,$T7,$T6);
|
|---|
| 546 | eval(shift(@insns));
|
|---|
| 547 | eval(shift(@insns));
|
|---|
| 548 | &sli_32 ($T5,@X[0],32-$sigma1[1]);
|
|---|
| 549 | eval(shift(@insns));
|
|---|
| 550 | eval(shift(@insns));
|
|---|
| 551 | &ld1_32 ("{$T0}","[$Ktbl], #16");
|
|---|
| 552 | eval(shift(@insns));
|
|---|
| 553 | &eor_8 ($T7,$T7,$T5); # sigma1(X[16..17])
|
|---|
| 554 | eval(shift(@insns));
|
|---|
| 555 | eval(shift(@insns));
|
|---|
| 556 | &eor_8 ($T5,$T5,$T5);
|
|---|
| 557 | eval(shift(@insns));
|
|---|
| 558 | eval(shift(@insns));
|
|---|
| 559 | &mov (&Dhi($T5), &Dlo($T7));
|
|---|
| 560 | eval(shift(@insns));
|
|---|
| 561 | eval(shift(@insns));
|
|---|
| 562 | eval(shift(@insns));
|
|---|
| 563 | &add_32 (@X[0],@X[0],$T5); # X[2..3] += sigma1(X[16..17])
|
|---|
| 564 | eval(shift(@insns));
|
|---|
| 565 | eval(shift(@insns));
|
|---|
| 566 | eval(shift(@insns));
|
|---|
| 567 | &add_32 ($T0,$T0,@X[0]);
|
|---|
| 568 | while($#insns>=1) { eval(shift(@insns)); }
|
|---|
| 569 | &st1_32 ("{$T0}","[$Xfer], #16");
|
|---|
| 570 | eval(shift(@insns));
|
|---|
| 571 |
|
|---|
| 572 | push(@X,shift(@X)); # "rotate" X[]
|
|---|
| 573 | }
|
|---|
| 574 |
|
|---|
| 575 | sub Xpreload()
|
|---|
| 576 | { use integer;
|
|---|
| 577 | my $body = shift;
|
|---|
| 578 | my @insns = (&$body,&$body,&$body,&$body);
|
|---|
| 579 | my ($a,$b,$c,$d,$e,$f,$g,$h);
|
|---|
| 580 |
|
|---|
| 581 | eval(shift(@insns));
|
|---|
| 582 | eval(shift(@insns));
|
|---|
| 583 | &ld1_8 ("{@X[0]}","[$inp],#16");
|
|---|
| 584 | eval(shift(@insns));
|
|---|
| 585 | eval(shift(@insns));
|
|---|
| 586 | &ld1_32 ("{$T0}","[$Ktbl],#16");
|
|---|
| 587 | eval(shift(@insns));
|
|---|
| 588 | eval(shift(@insns));
|
|---|
| 589 | eval(shift(@insns));
|
|---|
| 590 | eval(shift(@insns));
|
|---|
| 591 | &rev32 (@X[0],@X[0]);
|
|---|
| 592 | eval(shift(@insns));
|
|---|
| 593 | eval(shift(@insns));
|
|---|
| 594 | eval(shift(@insns));
|
|---|
| 595 | eval(shift(@insns));
|
|---|
| 596 | &add_32 ($T0,$T0,@X[0]);
|
|---|
| 597 | foreach (@insns) { eval; } # remaining instructions
|
|---|
| 598 | &st1_32 ("{$T0}","[$Xfer], #16");
|
|---|
| 599 |
|
|---|
| 600 | push(@X,shift(@X)); # "rotate" X[]
|
|---|
| 601 | }
|
|---|
| 602 |
|
|---|
| 603 | sub body_00_15 () {
|
|---|
| 604 | (
|
|---|
| 605 | '($a,$b,$c,$d,$e,$f,$g,$h)=@V;'.
|
|---|
| 606 | '&add ($h,$h,$t1)', # h+=X[i]+K[i]
|
|---|
| 607 | '&add ($a,$a,$t4);'. # h+=Sigma0(a) from the past
|
|---|
| 608 | '&and ($t1,$f,$e)',
|
|---|
| 609 | '&bic ($t4,$g,$e)',
|
|---|
| 610 | '&eor ($t0,$e,$e,"ror#".($Sigma1[1]-$Sigma1[0]))',
|
|---|
| 611 | '&add ($a,$a,$t2)', # h+=Maj(a,b,c) from the past
|
|---|
| 612 | '&orr ($t1,$t1,$t4)', # Ch(e,f,g)
|
|---|
| 613 | '&eor ($t0,$t0,$e,"ror#".($Sigma1[2]-$Sigma1[0]))', # Sigma1(e)
|
|---|
| 614 | '&eor ($t4,$a,$a,"ror#".($Sigma0[1]-$Sigma0[0]))',
|
|---|
| 615 | '&add ($h,$h,$t1)', # h+=Ch(e,f,g)
|
|---|
| 616 | '&ror ($t0,$t0,"#$Sigma1[0]")',
|
|---|
| 617 | '&eor ($t2,$a,$b)', # a^b, b^c in next round
|
|---|
| 618 | '&eor ($t4,$t4,$a,"ror#".($Sigma0[2]-$Sigma0[0]))', # Sigma0(a)
|
|---|
| 619 | '&add ($h,$h,$t0)', # h+=Sigma1(e)
|
|---|
| 620 | '&ldr ($t1,sprintf "[sp,#%d]",4*(($j+1)&15)) if (($j&15)!=15);'.
|
|---|
| 621 | '&ldr ($t1,"[$Ktbl]") if ($j==15);'.
|
|---|
| 622 | '&and ($t3,$t3,$t2)', # (b^c)&=(a^b)
|
|---|
| 623 | '&ror ($t4,$t4,"#$Sigma0[0]")',
|
|---|
| 624 | '&add ($d,$d,$h)', # d+=h
|
|---|
| 625 | '&eor ($t3,$t3,$b)', # Maj(a,b,c)
|
|---|
| 626 | '$j++; unshift(@V,pop(@V)); ($t2,$t3)=($t3,$t2);'
|
|---|
| 627 | )
|
|---|
| 628 | }
|
|---|
| 629 |
|
|---|
| 630 | $code.=<<___;
|
|---|
| 631 | #ifdef __KERNEL__
|
|---|
| 632 | .globl sha256_block_neon
|
|---|
| 633 | #endif
|
|---|
| 634 | .type sha256_block_neon,%function
|
|---|
| 635 | .align 4
|
|---|
| 636 | sha256_block_neon:
|
|---|
| 637 | AARCH64_VALID_CALL_TARGET
|
|---|
| 638 | .Lneon_entry:
|
|---|
| 639 | // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later
|
|---|
| 640 | stp x29, x30, [sp, #-16]!
|
|---|
| 641 | mov x29, sp
|
|---|
| 642 | sub sp,sp,#16*4
|
|---|
| 643 |
|
|---|
| 644 | adr $Ktbl,.LK256
|
|---|
| 645 | add $num,$inp,$num,lsl#6 // len to point at the end of inp
|
|---|
| 646 |
|
|---|
| 647 | ld1.8 {@X[0]},[$inp], #16
|
|---|
| 648 | ld1.8 {@X[1]},[$inp], #16
|
|---|
| 649 | ld1.8 {@X[2]},[$inp], #16
|
|---|
| 650 | ld1.8 {@X[3]},[$inp], #16
|
|---|
| 651 | ld1.32 {$T0},[$Ktbl], #16
|
|---|
| 652 | ld1.32 {$T1},[$Ktbl], #16
|
|---|
| 653 | ld1.32 {$T2},[$Ktbl], #16
|
|---|
| 654 | ld1.32 {$T3},[$Ktbl], #16
|
|---|
| 655 | rev32 @X[0],@X[0] // yes, even on
|
|---|
| 656 | rev32 @X[1],@X[1] // big-endian
|
|---|
| 657 | rev32 @X[2],@X[2]
|
|---|
| 658 | rev32 @X[3],@X[3]
|
|---|
| 659 | mov $Xfer,sp
|
|---|
| 660 | add.32 $T0,$T0,@X[0]
|
|---|
| 661 | add.32 $T1,$T1,@X[1]
|
|---|
| 662 | add.32 $T2,$T2,@X[2]
|
|---|
| 663 | st1.32 {$T0-$T1},[$Xfer], #32
|
|---|
| 664 | add.32 $T3,$T3,@X[3]
|
|---|
| 665 | st1.32 {$T2-$T3},[$Xfer]
|
|---|
| 666 | sub $Xfer,$Xfer,#32
|
|---|
| 667 |
|
|---|
| 668 | ldp $A,$B,[$ctx]
|
|---|
| 669 | ldp $C,$D,[$ctx,#8]
|
|---|
| 670 | ldp $E,$F,[$ctx,#16]
|
|---|
| 671 | ldp $G,$H,[$ctx,#24]
|
|---|
| 672 | ldr $t1,[sp,#0]
|
|---|
| 673 | mov $t2,wzr
|
|---|
| 674 | eor $t3,$B,$C
|
|---|
| 675 | mov $t4,wzr
|
|---|
| 676 | b .L_00_48
|
|---|
| 677 |
|
|---|
| 678 | .align 4
|
|---|
| 679 | .L_00_48:
|
|---|
| 680 | ___
|
|---|
| 681 | &Xupdate(\&body_00_15);
|
|---|
| 682 | &Xupdate(\&body_00_15);
|
|---|
| 683 | &Xupdate(\&body_00_15);
|
|---|
| 684 | &Xupdate(\&body_00_15);
|
|---|
| 685 | $code.=<<___;
|
|---|
| 686 | cmp $t1,#0 // check for K256 terminator
|
|---|
| 687 | ldr $t1,[sp,#0]
|
|---|
| 688 | sub $Xfer,$Xfer,#64
|
|---|
| 689 | bne .L_00_48
|
|---|
| 690 |
|
|---|
| 691 | sub $Ktbl,$Ktbl,#256 // rewind $Ktbl
|
|---|
| 692 | cmp $inp,$num
|
|---|
| 693 | mov $Xfer, #64
|
|---|
| 694 | csel $Xfer, $Xfer, xzr, eq
|
|---|
| 695 | sub $inp,$inp,$Xfer // avoid SEGV
|
|---|
| 696 | mov $Xfer,sp
|
|---|
| 697 | ___
|
|---|
| 698 | &Xpreload(\&body_00_15);
|
|---|
| 699 | &Xpreload(\&body_00_15);
|
|---|
| 700 | &Xpreload(\&body_00_15);
|
|---|
| 701 | &Xpreload(\&body_00_15);
|
|---|
| 702 | $code.=<<___;
|
|---|
| 703 | add $A,$A,$t4 // h+=Sigma0(a) from the past
|
|---|
| 704 | ldp $t0,$t1,[$ctx,#0]
|
|---|
| 705 | add $A,$A,$t2 // h+=Maj(a,b,c) from the past
|
|---|
| 706 | ldp $t2,$t3,[$ctx,#8]
|
|---|
| 707 | add $A,$A,$t0 // accumulate
|
|---|
| 708 | add $B,$B,$t1
|
|---|
| 709 | ldp $t0,$t1,[$ctx,#16]
|
|---|
| 710 | add $C,$C,$t2
|
|---|
| 711 | add $D,$D,$t3
|
|---|
| 712 | ldp $t2,$t3,[$ctx,#24]
|
|---|
| 713 | add $E,$E,$t0
|
|---|
| 714 | add $F,$F,$t1
|
|---|
| 715 | ldr $t1,[sp,#0]
|
|---|
| 716 | stp $A,$B,[$ctx,#0]
|
|---|
| 717 | add $G,$G,$t2
|
|---|
| 718 | mov $t2,wzr
|
|---|
| 719 | stp $C,$D,[$ctx,#8]
|
|---|
| 720 | add $H,$H,$t3
|
|---|
| 721 | stp $E,$F,[$ctx,#16]
|
|---|
| 722 | eor $t3,$B,$C
|
|---|
| 723 | stp $G,$H,[$ctx,#24]
|
|---|
| 724 | mov $t4,wzr
|
|---|
| 725 | mov $Xfer,sp
|
|---|
| 726 | b.ne .L_00_48
|
|---|
| 727 |
|
|---|
| 728 | ldr x29,[x29]
|
|---|
| 729 | add sp,sp,#16*4+16
|
|---|
| 730 | ret
|
|---|
| 731 | .size sha256_block_neon,.-sha256_block_neon
|
|---|
| 732 | ___
|
|---|
| 733 | }
|
|---|
| 734 |
|
|---|
| 735 | if ($SZ==8) {
|
|---|
| 736 | my $Ktbl="x3";
|
|---|
| 737 |
|
|---|
| 738 | my @H = map("v$_.16b",(0..4));
|
|---|
| 739 | my ($fg,$de,$m9_10)=map("v$_.16b",(5..7));
|
|---|
| 740 | my @MSG=map("v$_.16b",(16..23));
|
|---|
| 741 | my ($W0,$W1)=("v24.2d","v25.2d");
|
|---|
| 742 | my ($AB,$CD,$EF,$GH)=map("v$_.16b",(26..29));
|
|---|
| 743 |
|
|---|
| 744 | $code.=<<___;
|
|---|
| 745 | #ifndef __KERNEL__
|
|---|
| 746 | .type sha512_block_armv8,%function
|
|---|
| 747 | .align 6
|
|---|
| 748 | sha512_block_armv8:
|
|---|
| 749 | .Lv8_entry:
|
|---|
| 750 | // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later
|
|---|
| 751 | stp x29,x30,[sp,#-16]!
|
|---|
| 752 | add x29,sp,#0
|
|---|
| 753 |
|
|---|
| 754 | ld1 {@MSG[0]-@MSG[3]},[$inp],#64 // load input
|
|---|
| 755 | ld1 {@MSG[4]-@MSG[7]},[$inp],#64
|
|---|
| 756 |
|
|---|
| 757 | ld1.64 {@H[0]-@H[3]},[$ctx] // load context
|
|---|
| 758 | adr $Ktbl,.LK512
|
|---|
| 759 |
|
|---|
| 760 | rev64 @MSG[0],@MSG[0]
|
|---|
| 761 | rev64 @MSG[1],@MSG[1]
|
|---|
| 762 | rev64 @MSG[2],@MSG[2]
|
|---|
| 763 | rev64 @MSG[3],@MSG[3]
|
|---|
| 764 | rev64 @MSG[4],@MSG[4]
|
|---|
| 765 | rev64 @MSG[5],@MSG[5]
|
|---|
| 766 | rev64 @MSG[6],@MSG[6]
|
|---|
| 767 | rev64 @MSG[7],@MSG[7]
|
|---|
| 768 | b .Loop_hw
|
|---|
| 769 |
|
|---|
| 770 | .align 4
|
|---|
| 771 | .Loop_hw:
|
|---|
| 772 | ld1.64 {$W0},[$Ktbl],#16
|
|---|
| 773 | subs $num,$num,#1
|
|---|
| 774 | sub x4,$inp,#128
|
|---|
| 775 | orr $AB,@H[0],@H[0] // offload
|
|---|
| 776 | orr $CD,@H[1],@H[1]
|
|---|
| 777 | orr $EF,@H[2],@H[2]
|
|---|
| 778 | orr $GH,@H[3],@H[3]
|
|---|
| 779 | csel $inp,$inp,x4,ne // conditional rewind
|
|---|
| 780 | ___
|
|---|
| 781 | for($i=0;$i<32;$i++) {
|
|---|
| 782 | $code.=<<___;
|
|---|
| 783 | add.i64 $W0,$W0,@MSG[0]
|
|---|
| 784 | ld1.64 {$W1},[$Ktbl],#16
|
|---|
| 785 | ext $W0,$W0,$W0,#8
|
|---|
| 786 | ext $fg,@H[2],@H[3],#8
|
|---|
| 787 | ext $de,@H[1],@H[2],#8
|
|---|
| 788 | add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]"
|
|---|
| 789 | sha512su0 @MSG[0],@MSG[1]
|
|---|
| 790 | ext $m9_10,@MSG[4],@MSG[5],#8
|
|---|
| 791 | sha512h @H[3],$fg,$de
|
|---|
| 792 | sha512su1 @MSG[0],@MSG[7],$m9_10
|
|---|
| 793 | add.i64 @H[4],@H[1],@H[3] // "D + T1"
|
|---|
| 794 | sha512h2 @H[3],$H[1],@H[0]
|
|---|
| 795 | ___
|
|---|
| 796 | ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
|
|---|
| 797 | @H = (@H[3],@H[0],@H[4],@H[2],@H[1]);
|
|---|
| 798 | }
|
|---|
| 799 | for(;$i<40;$i++) {
|
|---|
| 800 | $code.=<<___ if ($i<39);
|
|---|
| 801 | ld1.64 {$W1},[$Ktbl],#16
|
|---|
| 802 | ___
|
|---|
| 803 | $code.=<<___ if ($i==39);
|
|---|
| 804 | sub $Ktbl,$Ktbl,#$rounds*$SZ // rewind
|
|---|
| 805 | ___
|
|---|
| 806 | $code.=<<___;
|
|---|
| 807 | add.i64 $W0,$W0,@MSG[0]
|
|---|
| 808 | ld1 {@MSG[0]},[$inp],#16 // load next input
|
|---|
| 809 | ext $W0,$W0,$W0,#8
|
|---|
| 810 | ext $fg,@H[2],@H[3],#8
|
|---|
| 811 | ext $de,@H[1],@H[2],#8
|
|---|
| 812 | add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]"
|
|---|
| 813 | sha512h @H[3],$fg,$de
|
|---|
| 814 | rev64 @MSG[0],@MSG[0]
|
|---|
| 815 | add.i64 @H[4],@H[1],@H[3] // "D + T1"
|
|---|
| 816 | sha512h2 @H[3],$H[1],@H[0]
|
|---|
| 817 | ___
|
|---|
| 818 | ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
|
|---|
| 819 | @H = (@H[3],@H[0],@H[4],@H[2],@H[1]);
|
|---|
| 820 | }
|
|---|
| 821 | $code.=<<___;
|
|---|
| 822 | add.i64 @H[0],@H[0],$AB // accumulate
|
|---|
| 823 | add.i64 @H[1],@H[1],$CD
|
|---|
| 824 | add.i64 @H[2],@H[2],$EF
|
|---|
| 825 | add.i64 @H[3],@H[3],$GH
|
|---|
| 826 |
|
|---|
| 827 | cbnz $num,.Loop_hw
|
|---|
| 828 |
|
|---|
| 829 | st1.64 {@H[0]-@H[3]},[$ctx] // store context
|
|---|
| 830 |
|
|---|
| 831 | ldr x29,[sp],#16
|
|---|
| 832 | ret
|
|---|
| 833 | .size sha512_block_armv8,.-sha512_block_armv8
|
|---|
| 834 | #endif
|
|---|
| 835 | ___
|
|---|
| 836 | }
|
|---|
| 837 |
|
|---|
| 838 | { my %opcode = (
|
|---|
| 839 | "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000,
|
|---|
| 840 | "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 );
|
|---|
| 841 |
|
|---|
| 842 | sub unsha256 {
|
|---|
| 843 | my ($mnemonic,$arg)=@_;
|
|---|
| 844 |
|
|---|
| 845 | $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
|
|---|
| 846 | &&
|
|---|
| 847 | sprintf ".inst\t0x%08x\t//%s %s",
|
|---|
| 848 | $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
|
|---|
| 849 | $mnemonic,$arg;
|
|---|
| 850 | }
|
|---|
| 851 | }
|
|---|
| 852 |
|
|---|
| 853 | { my %opcode = (
|
|---|
| 854 | "sha512h" => 0xce608000, "sha512h2" => 0xce608400,
|
|---|
| 855 | "sha512su0" => 0xcec08000, "sha512su1" => 0xce608800 );
|
|---|
| 856 |
|
|---|
| 857 | sub unsha512 {
|
|---|
| 858 | my ($mnemonic,$arg)=@_;
|
|---|
| 859 |
|
|---|
| 860 | $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
|
|---|
| 861 | &&
|
|---|
| 862 | sprintf ".inst\t0x%08x\t//%s %s",
|
|---|
| 863 | $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
|
|---|
| 864 | $mnemonic,$arg;
|
|---|
| 865 | }
|
|---|
| 866 | }
|
|---|
| 867 |
|
|---|
| 868 | open SELF,$0;
|
|---|
| 869 | while(<SELF>) {
|
|---|
| 870 | next if (/^#!/);
|
|---|
| 871 | last if (!s/^#/\/\// and !/^$/);
|
|---|
| 872 | print;
|
|---|
| 873 | }
|
|---|
| 874 | close SELF;
|
|---|
| 875 |
|
|---|
| 876 | foreach(split("\n",$code)) {
|
|---|
| 877 |
|
|---|
| 878 | s/\`([^\`]*)\`/eval($1)/ge;
|
|---|
| 879 |
|
|---|
| 880 | s/\b(sha512\w+)\s+([qv].*)/unsha512($1,$2)/ge or
|
|---|
| 881 | s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/ge;
|
|---|
| 882 |
|
|---|
| 883 | s/\bq([0-9]+)\b/v$1.16b/g; # old->new registers
|
|---|
| 884 |
|
|---|
| 885 | s/\.[ui]?8(\s)/$1/;
|
|---|
| 886 | s/\.\w?64\b// and s/\.16b/\.2d/g or
|
|---|
| 887 | s/\.\w?32\b// and s/\.16b/\.4s/g;
|
|---|
| 888 | m/\bext\b/ and s/\.2d/\.16b/g or
|
|---|
| 889 | m/(ld|st)1[^\[]+\[0\]/ and s/\.4s/\.s/g;
|
|---|
| 890 |
|
|---|
| 891 | print $_,"\n";
|
|---|
| 892 | }
|
|---|
| 893 |
|
|---|
| 894 | close STDOUT or die "error closing STDOUT: $!";
|
|---|
