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