crypto/sha/asm/sha512-s390x.pl

   1 #!/usr/bin/env perl
   2
   3 # ====================================================================
   4 # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
   5 # project. The module is, however, dual licensed under OpenSSL and
   6 # CRYPTOGAMS licenses depending on where you obtain it. For further
   7 # details see http://www.openssl.org/~appro/cryptogams/.
   8 # ====================================================================
   9
  10 # SHA256/512 block procedures for s390x.
  11
  12 # April 2007.
  13 #
  14 # sha256_block_data_order is reportedly >3 times faster than gcc 3.3
  15 # generated code (must be a bug in compiler, as improvement is
  16 # "pathologically" high, in particular in comparison to other SHA
  17 # modules). But the real twist is that it detects if hardware support
  18 # for SHA256 is available and in such case utilizes it. Then the
  19 # performance can reach >6.5x of assembler one for larger chunks.
  20 #
  21 # sha512_block_data_order is ~70% faster than gcc 3.3 generated code.
  22
  23 # January 2009.
  24 #
  25 # Add support for hardware SHA512 and reschedule instructions to
  26 # favour dual-issue z10 pipeline. Hardware SHA256/512 is ~4.7x faster
  27 # than software.
  28
  29 $t0="%r0";
  30 $t1="%r1";
  31 $ctx="%r2";     $t2="%r2";
  32 $inp="%r3";
  33 $len="%r4";     # used as index in inner loop
  34
  35 $A="%r5";
  36 $B="%r6";
  37 $C="%r7";
  38 $D="%r8";
  39 $E="%r9";
  40 $F="%r10";
  41 $G="%r11";
  42 $H="%r12";      @V=($A,$B,$C,$D,$E,$F,$G,$H);
  43 $tbl="%r13";
  44 $T1="%r14";
  45 $sp="%r15";
  46
  47 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
  48 open STDOUT,">$output";
  49
  50 if ($output =~ /512/) {
  51         $label="512";
  52         $SZ=8;
  53         $LD="lg";       # load from memory
  54         $ST="stg";      # store to memory
  55         $ADD="alg";     # add with memory operand
  56         $ROT="rllg";    # rotate left
  57         $SHR="srlg";    # logical right shift [see even at the end]
  58         @Sigma0=(25,30,36);
  59         @Sigma1=(23,46,50);
  60         @sigma0=(56,63, 7);
  61         @sigma1=( 3,45, 6);
  62         $rounds=80;
  63         $kimdfunc=3;    # 0 means unknown/unsupported/unimplemented/disabled
  64 } else {
  65         $label="256";
  66         $SZ=4;
  67         $LD="llgf";     # load from memory
  68         $ST="st";       # store to memory
  69         $ADD="al";      # add with memory operand
  70         $ROT="rll";     # rotate left
  71         $SHR="srl";     # logical right shift
  72         @Sigma0=(10,19,30);
  73         @Sigma1=( 7,21,26);
  74         @sigma0=(14,25, 3);
  75         @sigma1=(13,15,10);
  76         $rounds=64;
  77         $kimdfunc=2;    # magic function code for kimd instruction
  78 }
  79 $Func="sha${label}_block_data_order";
  80 $Table="K${label}";
  81 $frame=160+16*$SZ;
  82
  83 sub BODY_00_15 {
  84 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
  85
  86 $code.=<<___ if ($i<16);
  87         $LD     $T1,`$i*$SZ`($inp)      ### $i
  88 ___
  89 $code.=<<___;
  90         $ROT    $t0,$e,$Sigma1[0]
  91         $ROT    $t1,$e,$Sigma1[1]
  92          lgr    $t2,$f
  93         xgr     $t0,$t1
  94         $ROT    $t1,$t1,`$Sigma1[2]-$Sigma1[1]`
  95          xgr    $t2,$g
  96         $ST     $T1,`160+$SZ*($i%16)`($sp)
  97         xgr     $t0,$t1                 # Sigma1(e)
  98         la      $T1,0($T1,$h)           # T1+=h
  99          ngr    $t2,$e
 100          lgr    $t1,$a
 101         algr    $T1,$t0                 # T1+=Sigma1(e)
 102         $ROT    $h,$a,$Sigma0[0]
 103          xgr    $t2,$g                  # Ch(e,f,g)
 104         $ADD    $T1,`$i*$SZ`($len,$tbl) # T1+=K[i]
 105         $ROT    $t0,$a,$Sigma0[1]
 106         algr    $T1,$t2                 # T1+=Ch(e,f,g)
 107          ogr    $t1,$b
 108         xgr     $h,$t0
 109          lgr    $t2,$a
 110          ngr    $t1,$c
 111         $ROT    $t0,$t0,`$Sigma0[2]-$Sigma0[1]`
 112         xgr     $h,$t0                  # h=Sigma0(a)
 113          ngr    $t2,$b
 114         algr    $h,$T1                  # h+=T1
 115          ogr    $t2,$t1                 # Maj(a,b,c)
 116         la      $d,0($d,$T1)            # d+=T1
 117         algr    $h,$t2                  # h+=Maj(a,b,c)
 118 ___
 119 }
 120
 121 sub BODY_16_XX {
 122 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
 123
 124 $code.=<<___;
 125         $LD     $T1,`160+$SZ*(($i+1)%16)`($sp)  ### $i
 126         $LD     $t1,`160+$SZ*(($i+14)%16)`($sp)
 127         $ROT    $t0,$T1,$sigma0[0]
 128         $SHR    $T1,$sigma0[2]
 129         $ROT    $t2,$t0,`$sigma0[1]-$sigma0[0]`
 130         xgr     $T1,$t0
 131         $ROT    $t0,$t1,$sigma1[0]
 132         xgr     $T1,$t2                         # sigma0(X[i+1])
 133         $SHR    $t1,$sigma1[2]
 134         $ADD    $T1,`160+$SZ*($i%16)`($sp)      # +=X[i]
 135         xgr     $t1,$t0
 136         $ROT    $t0,$t0,`$sigma1[1]-$sigma1[0]`
 137         $ADD    $T1,`160+$SZ*(($i+9)%16)`($sp)  # +=X[i+9]
 138         xgr     $t1,$t0                         # sigma1(X[i+14])
 139         algr    $T1,$t1                         # +=sigma1(X[i+14])
 140 ___
 141         &BODY_00_15(@_);
 142 }
 143
 144 $code.=<<___;
 145 .text
 146 .align  64
 147 .type   $Table,\@object
 148 $Table:
 149 ___
 150 $code.=<<___ if ($SZ==4);
 151         .long   0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
 152         .long   0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
 153         .long   0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
 154         .long   0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
 155         .long   0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
 156         .long   0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
 157         .long   0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
 158         .long   0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
 159         .long   0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
 160         .long   0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
 161         .long   0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
 162         .long   0xd192e819,0xd6990624,0xf40e3585,0x106aa070
 163         .long   0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
 164         .long   0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
 165         .long   0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
 166         .long   0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
 167 ___
 168 $code.=<<___ if ($SZ==8);
 169         .quad   0x428a2f98d728ae22,0x7137449123ef65cd
 170         .quad   0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
 171         .quad   0x3956c25bf348b538,0x59f111f1b605d019
 172         .quad   0x923f82a4af194f9b,0xab1c5ed5da6d8118
 173         .quad   0xd807aa98a3030242,0x12835b0145706fbe
 174         .quad   0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
 175         .quad   0x72be5d74f27b896f,0x80deb1fe3b1696b1
 176         .quad   0x9bdc06a725c71235,0xc19bf174cf692694
 177         .quad   0xe49b69c19ef14ad2,0xefbe4786384f25e3
 178         .quad   0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
 179         .quad   0x2de92c6f592b0275,0x4a7484aa6ea6e483
 180         .quad   0x5cb0a9dcbd41fbd4,0x76f988da831153b5
 181         .quad   0x983e5152ee66dfab,0xa831c66d2db43210
 182         .quad   0xb00327c898fb213f,0xbf597fc7beef0ee4
 183         .quad   0xc6e00bf33da88fc2,0xd5a79147930aa725
 184         .quad   0x06ca6351e003826f,0x142929670a0e6e70
 185         .quad   0x27b70a8546d22ffc,0x2e1b21385c26c926
 186         .quad   0x4d2c6dfc5ac42aed,0x53380d139d95b3df
 187         .quad   0x650a73548baf63de,0x766a0abb3c77b2a8
 188         .quad   0x81c2c92e47edaee6,0x92722c851482353b
 189         .quad   0xa2bfe8a14cf10364,0xa81a664bbc423001
 190         .quad   0xc24b8b70d0f89791,0xc76c51a30654be30
 191         .quad   0xd192e819d6ef5218,0xd69906245565a910
 192         .quad   0xf40e35855771202a,0x106aa07032bbd1b8
 193         .quad   0x19a4c116b8d2d0c8,0x1e376c085141ab53
 194         .quad   0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
 195         .quad   0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
 196         .quad   0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
 197         .quad   0x748f82ee5defb2fc,0x78a5636f43172f60
 198         .quad   0x84c87814a1f0ab72,0x8cc702081a6439ec
 199         .quad   0x90befffa23631e28,0xa4506cebde82bde9
 200         .quad   0xbef9a3f7b2c67915,0xc67178f2e372532b
 201         .quad   0xca273eceea26619c,0xd186b8c721c0c207
 202         .quad   0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
 203         .quad   0x06f067aa72176fba,0x0a637dc5a2c898a6
 204         .quad   0x113f9804bef90dae,0x1b710b35131c471b
 205         .quad   0x28db77f523047d84,0x32caab7b40c72493
 206         .quad   0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
 207         .quad   0x4cc5d4becb3e42b6,0x597f299cfc657e2a
 208         .quad   0x5fcb6fab3ad6faec,0x6c44198c4a475817
 209 ___
 210 $code.=<<___;
 211 .size   $Table,.-$Table
 212 .globl  $Func
 213 .type   $Func,\@function
 214 $Func:
 215 ___
 216 $code.=<<___ if ($kimdfunc);
 217         larl    %r1,OPENSSL_s390xcap_P
 218         lg      %r0,0(%r1)
 219         tmhl    %r0,0x4000      # check for message-security assist
 220         jz      .Lsoftware
 221         lghi    %r0,0
 222         la      %r1,16($sp)
 223         .long   0xb93e0002      # kimd %r0,%r2
 224         lg      %r0,16($sp)
 225         tmhh    %r0,`0x8000>>$kimdfunc`
 226         jz      .Lsoftware
 227         lghi    %r0,$kimdfunc
 228         lgr     %r1,$ctx
 229         lgr     %r2,$inp
 230         sllg    %r3,$len,`log(16*$SZ)/log(2)`
 231         .long   0xb93e0002      # kimd %r0,%r2
 232         brc     1,.-4           # pay attention to "partial completion"
 233         br      %r14
 234 .align  16
 235 .Lsoftware:
 236 ___
 237 $code.=<<___;
 238         sllg    $len,$len,`log(16*$SZ)/log(2)`
 239         lghi    %r1,-$frame
 240         agr     $len,$inp
 241         stmg    $ctx,%r15,16($sp)
 242         lgr     %r0,$sp
 243         la      $sp,0(%r1,$sp)
 244         stg     %r0,0($sp)
 245
 246         larl    $tbl,$Table
 247         $LD     $A,`0*$SZ`($ctx)
 248         $LD     $B,`1*$SZ`($ctx)
 249         $LD     $C,`2*$SZ`($ctx)
 250         $LD     $D,`3*$SZ`($ctx)
 251         $LD     $E,`4*$SZ`($ctx)
 252         $LD     $F,`5*$SZ`($ctx)
 253         $LD     $G,`6*$SZ`($ctx)
 254         $LD     $H,`7*$SZ`($ctx)
 255
 256 .Lloop:
 257         lghi    $len,0
 258 ___
 259 for ($i=0;$i<16;$i++)   { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
 260 $code.=".Lrounds_16_xx:\n";
 261 for (;$i<32;$i++)       { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); }
 262 $code.=<<___;
 263         aghi    $len,`16*$SZ`
 264         lghi    $t0,`($rounds-16)*$SZ`
 265         clgr    $len,$t0
 266         jne     .Lrounds_16_xx
 267
 268         lg      $ctx,`$frame+16`($sp)
 269         la      $inp,`16*$SZ`($inp)
 270         $ADD    $A,`0*$SZ`($ctx)
 271         $ADD    $B,`1*$SZ`($ctx)
 272         $ADD    $C,`2*$SZ`($ctx)
 273         $ADD    $D,`3*$SZ`($ctx)
 274         $ADD    $E,`4*$SZ`($ctx)
 275         $ADD    $F,`5*$SZ`($ctx)
 276         $ADD    $G,`6*$SZ`($ctx)
 277         $ADD    $H,`7*$SZ`($ctx)
 278         $ST     $A,`0*$SZ`($ctx)
 279         $ST     $B,`1*$SZ`($ctx)
 280         $ST     $C,`2*$SZ`($ctx)
 281         $ST     $D,`3*$SZ`($ctx)
 282         $ST     $E,`4*$SZ`($ctx)
 283         $ST     $F,`5*$SZ`($ctx)
 284         $ST     $G,`6*$SZ`($ctx)
 285         $ST     $H,`7*$SZ`($ctx)
 286         clg     $inp,`$frame+32`($sp)
 287         jne     .Lloop
 288
 289         lmg     %r6,%r15,`$frame+48`($sp)
 290         br      %r14
 291 .size   $Func,.-$Func
 292 .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
 293 .comm   OPENSSL_s390xcap_P,16,8
 294 ___
 295
 296 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 297 # unlike 32-bit shift 64-bit one takes three arguments
 298 $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm;
 299
 300 print $code;
 301 close STDOUT;