1 #!/usr/bin/env perl 2 3 # ==================================================================== 4 # Written by Andy Polyakov <appro (at] 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 $output=shift; 48 open STDOUT,">$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,8,8 294 ___ 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; 302
