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| 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 # November 2010. | |
| 30 # | |
| 31 # Adapt for -m31 build. If kernel supports what's called "highgprs" | |
| 32 # feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit | |
| 33 # instructions and achieve "64-bit" performance even in 31-bit legacy | |
| 34 # application context. The feature is not specific to any particular | |
| 35 # processor, as long as it's "z-CPU". Latter implies that the code | |
| 36 # remains z/Architecture specific. On z900 SHA256 was measured to | |
| 37 # perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3. | |
| 38 | |
| 39 $flavour = shift; | |
| 40 | |
| 41 if ($flavour =~ /3[12]/) { | |
| 42 $SIZE_T=4; | |
| 43 $g=""; | |
| 44 } else { | |
| 45 $SIZE_T=8; | |
| 46 $g="g"; | |
| 47 } | |
| 48 | |
| 49 $t0="%r0"; | |
| 50 $t1="%r1"; | |
| 51 $ctx="%r2"; $t2="%r2"; | |
| 52 $inp="%r3"; | |
| 53 $len="%r4"; # used as index in inner loop | |
| 54 | |
| 55 $A="%r5"; | |
| 56 $B="%r6"; | |
| 57 $C="%r7"; | |
| 58 $D="%r8"; | |
| 59 $E="%r9"; | |
| 60 $F="%r10"; | |
| 61 $G="%r11"; | |
| 62 $H="%r12"; @V=($A,$B,$C,$D,$E,$F,$G,$H); | |
| 63 $tbl="%r13"; | |
| 64 $T1="%r14"; | |
| 65 $sp="%r15"; | |
| 66 | |
| 67 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} | |
| 68 open STDOUT,">$output"; | |
| 69 | |
| 70 if ($output =~ /512/) { | |
| 71 $label="512"; | |
| 72 $SZ=8; | |
| 73 $LD="lg"; # load from memory | |
| 74 $ST="stg"; # store to memory | |
| 75 $ADD="alg"; # add with memory operand | |
| 76 $ROT="rllg"; # rotate left | |
| 77 $SHR="srlg"; # logical right shift [see even at the end] | |
| 78 @Sigma0=(25,30,36); | |
| 79 @Sigma1=(23,46,50); | |
| 80 @sigma0=(56,63, 7); | |
| 81 @sigma1=( 3,45, 6); | |
| 82 $rounds=80; | |
| 83 $kimdfunc=3; # 0 means unknown/unsupported/unimplemented/disabled | |
| 84 } else { | |
| 85 $label="256"; | |
| 86 $SZ=4; | |
| 87 $LD="llgf"; # load from memory | |
| 88 $ST="st"; # store to memory | |
| 89 $ADD="al"; # add with memory operand | |
| 90 $ROT="rll"; # rotate left | |
| 91 $SHR="srl"; # logical right shift | |
| 92 @Sigma0=(10,19,30); | |
| 93 @Sigma1=( 7,21,26); | |
| 94 @sigma0=(14,25, 3); | |
| 95 @sigma1=(13,15,10); | |
| 96 $rounds=64; | |
| 97 $kimdfunc=2; # magic function code for kimd instruction | |
| 98 } | |
| 99 $Func="sha${label}_block_data_order"; | |
| 100 $Table="K${label}"; | |
| 101 $stdframe=16*$SIZE_T+4*8; | |
| 102 $frame=$stdframe+16*$SZ; | |
| 103 | |
| 104 sub BODY_00_15 { | |
| 105 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; | |
| 106 | |
| 107 $code.=<<___ if ($i<16); | |
| 108 $LD $T1,`$i*$SZ`($inp) ### $i | |
| 109 ___ | |
| 110 $code.=<<___; | |
| 111 $ROT $t0,$e,$Sigma1[0] | |
| 112 $ROT $t1,$e,$Sigma1[1] | |
| 113 lgr $t2,$f | |
| 114 xgr $t0,$t1 | |
| 115 $ROT $t1,$t1,`$Sigma1[2]-$Sigma1[1]` | |
| 116 xgr $t2,$g | |
| 117 $ST $T1,`$stdframe+$SZ*($i%16)`($sp) | |
| 118 xgr $t0,$t1 # Sigma1(e) | |
| 119 algr $T1,$h # T1+=h | |
| 120 ngr $t2,$e | |
| 121 lgr $t1,$a | |
| 122 algr $T1,$t0 # T1+=Sigma1(e) | |
| 123 $ROT $h,$a,$Sigma0[0] | |
| 124 xgr $t2,$g # Ch(e,f,g) | |
| 125 $ADD $T1,`$i*$SZ`($len,$tbl) # T1+=K[i] | |
| 126 $ROT $t0,$a,$Sigma0[1] | |
| 127 algr $T1,$t2 # T1+=Ch(e,f,g) | |
| 128 ogr $t1,$b | |
| 129 xgr $h,$t0 | |
| 130 lgr $t2,$a | |
| 131 ngr $t1,$c | |
| 132 $ROT $t0,$t0,`$Sigma0[2]-$Sigma0[1]` | |
| 133 xgr $h,$t0 # h=Sigma0(a) | |
| 134 ngr $t2,$b | |
| 135 algr $h,$T1 # h+=T1 | |
| 136 ogr $t2,$t1 # Maj(a,b,c) | |
| 137 algr $d,$T1 # d+=T1 | |
| 138 algr $h,$t2 # h+=Maj(a,b,c) | |
| 139 ___ | |
| 140 } | |
| 141 | |
| 142 sub BODY_16_XX { | |
| 143 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; | |
| 144 | |
| 145 $code.=<<___; | |
| 146 $LD $T1,`$stdframe+$SZ*(($i+1)%16)`($sp) ### $i | |
| 147 $LD $t1,`$stdframe+$SZ*(($i+14)%16)`($sp) | |
| 148 $ROT $t0,$T1,$sigma0[0] | |
| 149 $SHR $T1,$sigma0[2] | |
| 150 $ROT $t2,$t0,`$sigma0[1]-$sigma0[0]` | |
| 151 xgr $T1,$t0 | |
| 152 $ROT $t0,$t1,$sigma1[0] | |
| 153 xgr $T1,$t2 # sigma0(X[i+1]) | |
| 154 $SHR $t1,$sigma1[2] | |
| 155 $ADD $T1,`$stdframe+$SZ*($i%16)`($sp) # +=X[i] | |
| 156 xgr $t1,$t0 | |
| 157 $ROT $t0,$t0,`$sigma1[1]-$sigma1[0]` | |
| 158 $ADD $T1,`$stdframe+$SZ*(($i+9)%16)`($sp) # +=X[i+9] | |
| 159 xgr $t1,$t0 # sigma1(X[i+14]) | |
| 160 algr $T1,$t1 # +=sigma1(X[i+14]) | |
| 161 ___ | |
| 162 &BODY_00_15(@_); | |
| 163 } | |
| 164 | |
| 165 $code.=<<___; | |
| 166 .text | |
| 167 .align 64 | |
| 168 .type $Table,\@object | |
| 169 $Table: | |
| 170 ___ | |
| 171 $code.=<<___ if ($SZ==4); | |
| 172 .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 | |
| 173 .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 | |
| 174 .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 | |
| 175 .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 | |
| 176 .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc | |
| 177 .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da | |
| 178 .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 | |
| 179 .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 | |
| 180 .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 | |
| 181 .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 | |
| 182 .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 | |
| 183 .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 | |
| 184 .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 | |
| 185 .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 | |
| 186 .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 | |
| 187 .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 | |
| 188 ___ | |
| 189 $code.=<<___ if ($SZ==8); | |
| 190 .quad 0x428a2f98d728ae22,0x7137449123ef65cd | |
| 191 .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc | |
| 192 .quad 0x3956c25bf348b538,0x59f111f1b605d019 | |
| 193 .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 | |
| 194 .quad 0xd807aa98a3030242,0x12835b0145706fbe | |
| 195 .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 | |
| 196 .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 | |
| 197 .quad 0x9bdc06a725c71235,0xc19bf174cf692694 | |
| 198 .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 | |
| 199 .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 | |
| 200 .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 | |
| 201 .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 | |
| 202 .quad 0x983e5152ee66dfab,0xa831c66d2db43210 | |
| 203 .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 | |
| 204 .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 | |
| 205 .quad 0x06ca6351e003826f,0x142929670a0e6e70 | |
| 206 .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 | |
| 207 .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df | |
| 208 .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 | |
| 209 .quad 0x81c2c92e47edaee6,0x92722c851482353b | |
| 210 .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 | |
| 211 .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 | |
| 212 .quad 0xd192e819d6ef5218,0xd69906245565a910 | |
| 213 .quad 0xf40e35855771202a,0x106aa07032bbd1b8 | |
| 214 .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 | |
| 215 .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 | |
| 216 .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb | |
| 217 .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 | |
| 218 .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 | |
| 219 .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec | |
| 220 .quad 0x90befffa23631e28,0xa4506cebde82bde9 | |
| 221 .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b | |
| 222 .quad 0xca273eceea26619c,0xd186b8c721c0c207 | |
| 223 .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 | |
| 224 .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 | |
| 225 .quad 0x113f9804bef90dae,0x1b710b35131c471b | |
| 226 .quad 0x28db77f523047d84,0x32caab7b40c72493 | |
| 227 .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c | |
| 228 .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a | |
| 229 .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 | |
| 230 ___ | |
| 231 $code.=<<___; | |
| 232 .size $Table,.-$Table | |
| 233 .globl $Func | |
| 234 .type $Func,\@function | |
| 235 $Func: | |
| 236 sllg $len,$len,`log(16*$SZ)/log(2)` | |
| 237 ___ | |
| 238 $code.=<<___ if ($kimdfunc); | |
| 239 larl %r1,OPENSSL_s390xcap_P | |
| 240 lg %r0,0(%r1) | |
| 241 tmhl %r0,0x4000 # check for message-security assist | |
| 242 jz .Lsoftware | |
| 243 lghi %r0,0 | |
| 244 la %r1,`2*$SIZE_T`($sp) | |
| 245 .long 0xb93e0002 # kimd %r0,%r2 | |
| 246 lg %r0,`2*$SIZE_T`($sp) | |
| 247 tmhh %r0,`0x8000>>$kimdfunc` | |
| 248 jz .Lsoftware | |
| 249 lghi %r0,$kimdfunc | |
| 250 lgr %r1,$ctx | |
| 251 lgr %r2,$inp | |
| 252 lgr %r3,$len | |
| 253 .long 0xb93e0002 # kimd %r0,%r2 | |
| 254 brc 1,.-4 # pay attention to "partial completion" | |
| 255 br %r14 | |
| 256 .align 16 | |
| 257 .Lsoftware: | |
| 258 ___ | |
| 259 $code.=<<___; | |
| 260 lghi %r1,-$frame | |
| 261 la $len,0($len,$inp) | |
| 262 stm${g} $ctx,%r15,`2*$SIZE_T`($sp) | |
| 263 lgr %r0,$sp | |
| 264 la $sp,0(%r1,$sp) | |
| 265 st${g} %r0,0($sp) | |
| 266 | |
| 267 larl $tbl,$Table | |
| 268 $LD $A,`0*$SZ`($ctx) | |
| 269 $LD $B,`1*$SZ`($ctx) | |
| 270 $LD $C,`2*$SZ`($ctx) | |
| 271 $LD $D,`3*$SZ`($ctx) | |
| 272 $LD $E,`4*$SZ`($ctx) | |
| 273 $LD $F,`5*$SZ`($ctx) | |
| 274 $LD $G,`6*$SZ`($ctx) | |
| 275 $LD $H,`7*$SZ`($ctx) | |
| 276 | |
| 277 .Lloop: | |
| 278 lghi $len,0 | |
| 279 ___ | |
| 280 for ($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); } | |
| 281 $code.=".Lrounds_16_xx:\n"; | |
| 282 for (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); } | |
| 283 $code.=<<___; | |
| 284 aghi $len,`16*$SZ` | |
| 285 lghi $t0,`($rounds-16)*$SZ` | |
| 286 clgr $len,$t0 | |
| 287 jne .Lrounds_16_xx | |
| 288 | |
| 289 l${g} $ctx,`$frame+2*$SIZE_T`($sp) | |
| 290 la $inp,`16*$SZ`($inp) | |
| 291 $ADD $A,`0*$SZ`($ctx) | |
| 292 $ADD $B,`1*$SZ`($ctx) | |
| 293 $ADD $C,`2*$SZ`($ctx) | |
| 294 $ADD $D,`3*$SZ`($ctx) | |
| 295 $ADD $E,`4*$SZ`($ctx) | |
| 296 $ADD $F,`5*$SZ`($ctx) | |
| 297 $ADD $G,`6*$SZ`($ctx) | |
| 298 $ADD $H,`7*$SZ`($ctx) | |
| 299 $ST $A,`0*$SZ`($ctx) | |
| 300 $ST $B,`1*$SZ`($ctx) | |
| 301 $ST $C,`2*$SZ`($ctx) | |
| 302 $ST $D,`3*$SZ`($ctx) | |
| 303 $ST $E,`4*$SZ`($ctx) | |
| 304 $ST $F,`5*$SZ`($ctx) | |
| 305 $ST $G,`6*$SZ`($ctx) | |
| 306 $ST $H,`7*$SZ`($ctx) | |
| 307 cl${g} $inp,`$frame+4*$SIZE_T`($sp) | |
| 308 jne .Lloop | |
| 309 | |
| 310 lm${g} %r6,%r15,`$frame+6*$SIZE_T`($sp) | |
| 311 br %r14 | |
| 312 .size $Func,.-$Func | |
| 313 .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.or
g>" | |
| 314 .comm OPENSSL_s390xcap_P,16,8 | |
| 315 ___ | |
| 316 | |
| 317 $code =~ s/\`([^\`]*)\`/eval $1/gem; | |
| 318 # unlike 32-bit shift 64-bit one takes three arguments | |
| 319 $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm; | |
| 320 | |
| 321 print $code; | |
| 322 close STDOUT; | |
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