crypto/sha/asm/sha512-s390x.pl

   1 #! /usr/bin/env perl
   2 # Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the OpenSSL license (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9
  10 # ====================================================================
  11 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
  12 # project. The module is, however, dual licensed under OpenSSL and
  13 # CRYPTOGAMS licenses depending on where you obtain it. For further
  14 # details see http://www.openssl.org/~appro/cryptogams/.
  15 # ====================================================================
  16
  17 # SHA256/512 block procedures for s390x.
  18
  19 # April 2007.
  20 #
  21 # sha256_block_data_order is reportedly >3 times faster than gcc 3.3
  22 # generated code (must be a bug in compiler, as improvement is
  23 # "pathologically" high, in particular in comparison to other SHA
  24 # modules). But the real twist is that it detects if hardware support
  25 # for SHA256 is available and in such case utilizes it. Then the
  26 # performance can reach >6.5x of assembler one for larger chunks.
  27 #
  28 # sha512_block_data_order is ~70% faster than gcc 3.3 generated code.
  29
  30 # January 2009.
  31 #
  32 # Add support for hardware SHA512 and reschedule instructions to
  33 # favour dual-issue z10 pipeline. Hardware SHA256/512 is ~4.7x faster
  34 # than software.
  35
  36 # November 2010.
  37 #
  38 # Adapt for -m31 build. If kernel supports what's called "highgprs"
  39 # feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit
  40 # instructions and achieve "64-bit" performance even in 31-bit legacy
  41 # application context. The feature is not specific to any particular
  42 # processor, as long as it's "z-CPU". Latter implies that the code
  43 # remains z/Architecture specific. On z990 SHA256 was measured to
  44 # perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3.
  45
  46 $flavour = shift;
  47
  48 if ($flavour =~ /3[12]/) {
  49         $SIZE_T=4;
  50         $g="";
  51 } else {
  52         $SIZE_T=8;
  53         $g="g";
  54 }
  55
  56 $t0="%r0";
  57 $t1="%r1";
  58 $ctx="%r2";     $t2="%r2";
  59 $inp="%r3";
  60 $len="%r4";     # used as index in inner loop
  61
  62 $A="%r5";
  63 $B="%r6";
  64 $C="%r7";
  65 $D="%r8";
  66 $E="%r9";
  67 $F="%r10";
  68 $G="%r11";
  69 $H="%r12";      @V=($A,$B,$C,$D,$E,$F,$G,$H);
  70 $tbl="%r13";
  71 $T1="%r14";
  72 $sp="%r15";
  73
  74 while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
  75 open STDOUT,">$output";
  76
  77 if ($output =~ /512/) {
  78         $label="512";
  79         $SZ=8;
  80         $LD="lg";       # load from memory
  81         $ST="stg";      # store to memory
  82         $ADD="alg";     # add with memory operand
  83         $ROT="rllg";    # rotate left
  84         $SHR="srlg";    # logical right shift [see even at the end]
  85         @Sigma0=(25,30,36);
  86         @Sigma1=(23,46,50);
  87         @sigma0=(56,63, 7);
  88         @sigma1=( 3,45, 6);
  89         $rounds=80;
  90         $kimdfunc=3;    # 0 means unknown/unsupported/unimplemented/disabled
  91 } else {
  92         $label="256";
  93         $SZ=4;
  94         $LD="llgf";     # load from memory
  95         $ST="st";       # store to memory
  96         $ADD="al";      # add with memory operand
  97         $ROT="rll";     # rotate left
  98         $SHR="srl";     # logical right shift
  99         @Sigma0=(10,19,30);
 100         @Sigma1=( 7,21,26);
 101         @sigma0=(14,25, 3);
 102         @sigma1=(13,15,10);
 103         $rounds=64;
 104         $kimdfunc=2;    # magic function code for kimd instruction
 105 }
 106 $Func="sha${label}_block_data_order";
 107 $Table="K${label}";
 108 $stdframe=16*$SIZE_T+4*8;
 109 $frame=$stdframe+16*$SZ;
 110
 111 sub BODY_00_15 {
 112 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
 113
 114 $code.=<<___ if ($i<16);
 115         $LD     $T1,`$i*$SZ`($inp)      ### $i
 116 ___
 117 $code.=<<___;
 118         $ROT    $t0,$e,$Sigma1[0]
 119         $ROT    $t1,$e,$Sigma1[1]
 120          lgr    $t2,$f
 121         xgr     $t0,$t1
 122         $ROT    $t1,$t1,`$Sigma1[2]-$Sigma1[1]`
 123          xgr    $t2,$g
 124         $ST     $T1,`$stdframe+$SZ*($i%16)`($sp)
 125         xgr     $t0,$t1                 # Sigma1(e)
 126         algr    $T1,$h                  # T1+=h
 127          ngr    $t2,$e
 128          lgr    $t1,$a
 129         algr    $T1,$t0                 # T1+=Sigma1(e)
 130         $ROT    $h,$a,$Sigma0[0]
 131          xgr    $t2,$g                  # Ch(e,f,g)
 132         $ADD    $T1,`$i*$SZ`($len,$tbl) # T1+=K[i]
 133         $ROT    $t0,$a,$Sigma0[1]
 134         algr    $T1,$t2                 # T1+=Ch(e,f,g)
 135          ogr    $t1,$b
 136         xgr     $h,$t0
 137          lgr    $t2,$a
 138          ngr    $t1,$c
 139         $ROT    $t0,$t0,`$Sigma0[2]-$Sigma0[1]`
 140         xgr     $h,$t0                  # h=Sigma0(a)
 141          ngr    $t2,$b
 142         algr    $h,$T1                  # h+=T1
 143          ogr    $t2,$t1                 # Maj(a,b,c)
 144         algr    $d,$T1                  # d+=T1
 145         algr    $h,$t2                  # h+=Maj(a,b,c)
 146 ___
 147 }
 148
 149 sub BODY_16_XX {
 150 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
 151
 152 $code.=<<___;
 153         $LD     $T1,`$stdframe+$SZ*(($i+1)%16)`($sp)    ### $i
 154         $LD     $t1,`$stdframe+$SZ*(($i+14)%16)`($sp)
 155         $ROT    $t0,$T1,$sigma0[0]
 156         $SHR    $T1,$sigma0[2]
 157         $ROT    $t2,$t0,`$sigma0[1]-$sigma0[0]`
 158         xgr     $T1,$t0
 159         $ROT    $t0,$t1,$sigma1[0]
 160         xgr     $T1,$t2                                 # sigma0(X[i+1])
 161         $SHR    $t1,$sigma1[2]
 162         $ADD    $T1,`$stdframe+$SZ*($i%16)`($sp)        # +=X[i]
 163         xgr     $t1,$t0
 164         $ROT    $t0,$t0,`$sigma1[1]-$sigma1[0]`
 165         $ADD    $T1,`$stdframe+$SZ*(($i+9)%16)`($sp)    # +=X[i+9]
 166         xgr     $t1,$t0                         # sigma1(X[i+14])
 167         algr    $T1,$t1                         # +=sigma1(X[i+14])
 168 ___
 169         &BODY_00_15(@_);
 170 }
 171
 172 $code.=<<___;
 173 #include "s390x_arch.h"
 174
 175 .text
 176 .align  64
 177 .type   $Table,\@object
 178 $Table:
 179 ___
 180 $code.=<<___ if ($SZ==4);
 181         .long   0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
 182         .long   0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
 183         .long   0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
 184         .long   0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
 185         .long   0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
 186         .long   0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
 187         .long   0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
 188         .long   0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
 189         .long   0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
 190         .long   0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
 191         .long   0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
 192         .long   0xd192e819,0xd6990624,0xf40e3585,0x106aa070
 193         .long   0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
 194         .long   0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
 195         .long   0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
 196         .long   0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
 197 ___
 198 $code.=<<___ if ($SZ==8);
 199         .quad   0x428a2f98d728ae22,0x7137449123ef65cd
 200         .quad   0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
 201         .quad   0x3956c25bf348b538,0x59f111f1b605d019
 202         .quad   0x923f82a4af194f9b,0xab1c5ed5da6d8118
 203         .quad   0xd807aa98a3030242,0x12835b0145706fbe
 204         .quad   0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
 205         .quad   0x72be5d74f27b896f,0x80deb1fe3b1696b1
 206         .quad   0x9bdc06a725c71235,0xc19bf174cf692694
 207         .quad   0xe49b69c19ef14ad2,0xefbe4786384f25e3
 208         .quad   0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
 209         .quad   0x2de92c6f592b0275,0x4a7484aa6ea6e483
 210         .quad   0x5cb0a9dcbd41fbd4,0x76f988da831153b5
 211         .quad   0x983e5152ee66dfab,0xa831c66d2db43210
 212         .quad   0xb00327c898fb213f,0xbf597fc7beef0ee4
 213         .quad   0xc6e00bf33da88fc2,0xd5a79147930aa725
 214         .quad   0x06ca6351e003826f,0x142929670a0e6e70
 215         .quad   0x27b70a8546d22ffc,0x2e1b21385c26c926
 216         .quad   0x4d2c6dfc5ac42aed,0x53380d139d95b3df
 217         .quad   0x650a73548baf63de,0x766a0abb3c77b2a8
 218         .quad   0x81c2c92e47edaee6,0x92722c851482353b
 219         .quad   0xa2bfe8a14cf10364,0xa81a664bbc423001
 220         .quad   0xc24b8b70d0f89791,0xc76c51a30654be30
 221         .quad   0xd192e819d6ef5218,0xd69906245565a910
 222         .quad   0xf40e35855771202a,0x106aa07032bbd1b8
 223         .quad   0x19a4c116b8d2d0c8,0x1e376c085141ab53
 224         .quad   0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
 225         .quad   0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
 226         .quad   0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
 227         .quad   0x748f82ee5defb2fc,0x78a5636f43172f60
 228         .quad   0x84c87814a1f0ab72,0x8cc702081a6439ec
 229         .quad   0x90befffa23631e28,0xa4506cebde82bde9
 230         .quad   0xbef9a3f7b2c67915,0xc67178f2e372532b
 231         .quad   0xca273eceea26619c,0xd186b8c721c0c207
 232         .quad   0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
 233         .quad   0x06f067aa72176fba,0x0a637dc5a2c898a6
 234         .quad   0x113f9804bef90dae,0x1b710b35131c471b
 235         .quad   0x28db77f523047d84,0x32caab7b40c72493
 236         .quad   0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
 237         .quad   0x4cc5d4becb3e42b6,0x597f299cfc657e2a
 238         .quad   0x5fcb6fab3ad6faec,0x6c44198c4a475817
 239 ___
 240 $code.=<<___;
 241 .size   $Table,.-$Table
 242 .globl  $Func
 243 .type   $Func,\@function
 244 $Func:
 245         sllg    $len,$len,`log(16*$SZ)/log(2)`
 246 ___
 247 $code.=<<___ if ($kimdfunc);
 248         larl    %r1,OPENSSL_s390xcap_P
 249         lg      %r0,S390X_KIMD(%r1)     # check kimd capabilities
 250         tmhh    %r0,`0x8000>>$kimdfunc`
 251         jz      .Lsoftware
 252         lghi    %r0,$kimdfunc
 253         lgr     %r1,$ctx
 254         lgr     %r2,$inp
 255         lgr     %r3,$len
 256         .long   0xb93e0002      # kimd %r0,%r2
 257         brc     1,.-4           # pay attention to "partial completion"
 258         br      %r14
 259 .align  16
 260 .Lsoftware:
 261 ___
 262 $code.=<<___;
 263         lghi    %r1,-$frame
 264         la      $len,0($len,$inp)
 265         stm${g} $ctx,%r15,`2*$SIZE_T`($sp)
 266         lgr     %r0,$sp
 267         la      $sp,0(%r1,$sp)
 268         st${g}  %r0,0($sp)
 269
 270         larl    $tbl,$Table
 271         $LD     $A,`0*$SZ`($ctx)
 272         $LD     $B,`1*$SZ`($ctx)
 273         $LD     $C,`2*$SZ`($ctx)
 274         $LD     $D,`3*$SZ`($ctx)
 275         $LD     $E,`4*$SZ`($ctx)
 276         $LD     $F,`5*$SZ`($ctx)
 277         $LD     $G,`6*$SZ`($ctx)
 278         $LD     $H,`7*$SZ`($ctx)
 279
 280 .Lloop:
 281         lghi    $len,0
 282 ___
 283 for ($i=0;$i<16;$i++)   { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
 284 $code.=".Lrounds_16_xx:\n";
 285 for (;$i<32;$i++)       { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); }
 286 $code.=<<___;
 287         aghi    $len,`16*$SZ`
 288         lghi    $t0,`($rounds-16)*$SZ`
 289         clgr    $len,$t0
 290         jne     .Lrounds_16_xx
 291
 292         l${g}   $ctx,`$frame+2*$SIZE_T`($sp)
 293         la      $inp,`16*$SZ`($inp)
 294         $ADD    $A,`0*$SZ`($ctx)
 295         $ADD    $B,`1*$SZ`($ctx)
 296         $ADD    $C,`2*$SZ`($ctx)
 297         $ADD    $D,`3*$SZ`($ctx)
 298         $ADD    $E,`4*$SZ`($ctx)
 299         $ADD    $F,`5*$SZ`($ctx)
 300         $ADD    $G,`6*$SZ`($ctx)
 301         $ADD    $H,`7*$SZ`($ctx)
 302         $ST     $A,`0*$SZ`($ctx)
 303         $ST     $B,`1*$SZ`($ctx)
 304         $ST     $C,`2*$SZ`($ctx)
 305         $ST     $D,`3*$SZ`($ctx)
 306         $ST     $E,`4*$SZ`($ctx)
 307         $ST     $F,`5*$SZ`($ctx)
 308         $ST     $G,`6*$SZ`($ctx)
 309         $ST     $H,`7*$SZ`($ctx)
 310         cl${g}  $inp,`$frame+4*$SIZE_T`($sp)
 311         jne     .Lloop
 312
 313         lm${g}  %r6,%r15,`$frame+6*$SIZE_T`($sp)
 314         br      %r14
 315 .size   $Func,.-$Func
 316 .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
 317 ___
 318
 319 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 320 # unlike 32-bit shift 64-bit one takes three arguments
 321 $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm;
 322
 323 print $code;
 324 close STDOUT;