1238384Sjkim#!/usr/bin/env perl 2238384Sjkim 3238384Sjkim# ==================================================================== 4238384Sjkim# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL 5238384Sjkim# project. The module is, however, dual licensed under OpenSSL and 6238384Sjkim# CRYPTOGAMS licenses depending on where you obtain it. For further 7238384Sjkim# details see http://www.openssl.org/~appro/cryptogams/. 8238384Sjkim# ==================================================================== 9238384Sjkim 10238384Sjkim# SHA256/512 block procedures for s390x. 11238384Sjkim 12238384Sjkim# April 2007. 13238384Sjkim# 14238384Sjkim# sha256_block_data_order is reportedly >3 times faster than gcc 3.3 15238384Sjkim# generated code (must be a bug in compiler, as improvement is 16238384Sjkim# "pathologically" high, in particular in comparison to other SHA 17238384Sjkim# modules). But the real twist is that it detects if hardware support 18238384Sjkim# for SHA256 is available and in such case utilizes it. Then the 19238384Sjkim# performance can reach >6.5x of assembler one for larger chunks. 20238384Sjkim# 21238384Sjkim# sha512_block_data_order is ~70% faster than gcc 3.3 generated code. 22238384Sjkim 23238384Sjkim# January 2009. 24238384Sjkim# 25238384Sjkim# Add support for hardware SHA512 and reschedule instructions to 26238384Sjkim# favour dual-issue z10 pipeline. Hardware SHA256/512 is ~4.7x faster 27238384Sjkim# than software. 28238384Sjkim 29238384Sjkim# November 2010. 30238384Sjkim# 31238384Sjkim# Adapt for -m31 build. If kernel supports what's called "highgprs" 32238384Sjkim# feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit 33238384Sjkim# instructions and achieve "64-bit" performance even in 31-bit legacy 34238384Sjkim# application context. The feature is not specific to any particular 35238384Sjkim# processor, as long as it's "z-CPU". Latter implies that the code 36238384Sjkim# remains z/Architecture specific. On z900 SHA256 was measured to 37238384Sjkim# perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3. 38238384Sjkim 39238384Sjkim$flavour = shift; 40238384Sjkim 41238384Sjkimif ($flavour =~ /3[12]/) { 42238384Sjkim $SIZE_T=4; 43238384Sjkim $g=""; 44238384Sjkim} else { 45238384Sjkim $SIZE_T=8; 46238384Sjkim $g="g"; 47238384Sjkim} 48238384Sjkim 49238384Sjkim$t0="%r0"; 50238384Sjkim$t1="%r1"; 51238384Sjkim$ctx="%r2"; $t2="%r2"; 52238384Sjkim$inp="%r3"; 53238384Sjkim$len="%r4"; # used as index in inner loop 54238384Sjkim 55238384Sjkim$A="%r5"; 56238384Sjkim$B="%r6"; 57238384Sjkim$C="%r7"; 58238384Sjkim$D="%r8"; 59238384Sjkim$E="%r9"; 60238384Sjkim$F="%r10"; 61238384Sjkim$G="%r11"; 62238384Sjkim$H="%r12"; @V=($A,$B,$C,$D,$E,$F,$G,$H); 63238384Sjkim$tbl="%r13"; 64238384Sjkim$T1="%r14"; 65238384Sjkim$sp="%r15"; 66238384Sjkim 67238384Sjkimwhile (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} 68238384Sjkimopen STDOUT,">$output"; 69238384Sjkim 70238384Sjkimif ($output =~ /512/) { 71238384Sjkim $label="512"; 72238384Sjkim $SZ=8; 73238384Sjkim $LD="lg"; # load from memory 74238384Sjkim $ST="stg"; # store to memory 75238384Sjkim $ADD="alg"; # add with memory operand 76238384Sjkim $ROT="rllg"; # rotate left 77238384Sjkim $SHR="srlg"; # logical right shift [see even at the end] 78238384Sjkim @Sigma0=(25,30,36); 79238384Sjkim @Sigma1=(23,46,50); 80238384Sjkim @sigma0=(56,63, 7); 81238384Sjkim @sigma1=( 3,45, 6); 82238384Sjkim $rounds=80; 83238384Sjkim $kimdfunc=3; # 0 means unknown/unsupported/unimplemented/disabled 84238384Sjkim} else { 85238384Sjkim $label="256"; 86238384Sjkim $SZ=4; 87238384Sjkim $LD="llgf"; # load from memory 88238384Sjkim $ST="st"; # store to memory 89238384Sjkim $ADD="al"; # add with memory operand 90238384Sjkim $ROT="rll"; # rotate left 91238384Sjkim $SHR="srl"; # logical right shift 92238384Sjkim @Sigma0=(10,19,30); 93238384Sjkim @Sigma1=( 7,21,26); 94238384Sjkim @sigma0=(14,25, 3); 95238384Sjkim @sigma1=(13,15,10); 96238384Sjkim $rounds=64; 97238384Sjkim $kimdfunc=2; # magic function code for kimd instruction 98238384Sjkim} 99238384Sjkim$Func="sha${label}_block_data_order"; 100238384Sjkim$Table="K${label}"; 101238384Sjkim$stdframe=16*$SIZE_T+4*8; 102238384Sjkim$frame=$stdframe+16*$SZ; 103238384Sjkim 104238384Sjkimsub BODY_00_15 { 105238384Sjkimmy ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; 106238384Sjkim 107238384Sjkim$code.=<<___ if ($i<16); 108238384Sjkim $LD $T1,`$i*$SZ`($inp) ### $i 109238384Sjkim___ 110238384Sjkim$code.=<<___; 111238384Sjkim $ROT $t0,$e,$Sigma1[0] 112238384Sjkim $ROT $t1,$e,$Sigma1[1] 113238384Sjkim lgr $t2,$f 114238384Sjkim xgr $t0,$t1 115238384Sjkim $ROT $t1,$t1,`$Sigma1[2]-$Sigma1[1]` 116238384Sjkim xgr $t2,$g 117238384Sjkim $ST $T1,`$stdframe+$SZ*($i%16)`($sp) 118238384Sjkim xgr $t0,$t1 # Sigma1(e) 119238384Sjkim algr $T1,$h # T1+=h 120238384Sjkim ngr $t2,$e 121238384Sjkim lgr $t1,$a 122238384Sjkim algr $T1,$t0 # T1+=Sigma1(e) 123238384Sjkim $ROT $h,$a,$Sigma0[0] 124238384Sjkim xgr $t2,$g # Ch(e,f,g) 125238384Sjkim $ADD $T1,`$i*$SZ`($len,$tbl) # T1+=K[i] 126238384Sjkim $ROT $t0,$a,$Sigma0[1] 127238384Sjkim algr $T1,$t2 # T1+=Ch(e,f,g) 128238384Sjkim ogr $t1,$b 129238384Sjkim xgr $h,$t0 130238384Sjkim lgr $t2,$a 131238384Sjkim ngr $t1,$c 132238384Sjkim $ROT $t0,$t0,`$Sigma0[2]-$Sigma0[1]` 133238384Sjkim xgr $h,$t0 # h=Sigma0(a) 134238384Sjkim ngr $t2,$b 135238384Sjkim algr $h,$T1 # h+=T1 136238384Sjkim ogr $t2,$t1 # Maj(a,b,c) 137238384Sjkim algr $d,$T1 # d+=T1 138238384Sjkim algr $h,$t2 # h+=Maj(a,b,c) 139238384Sjkim___ 140238384Sjkim} 141238384Sjkim 142238384Sjkimsub BODY_16_XX { 143238384Sjkimmy ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; 144238384Sjkim 145238384Sjkim$code.=<<___; 146238384Sjkim $LD $T1,`$stdframe+$SZ*(($i+1)%16)`($sp) ### $i 147238384Sjkim $LD $t1,`$stdframe+$SZ*(($i+14)%16)`($sp) 148238384Sjkim $ROT $t0,$T1,$sigma0[0] 149238384Sjkim $SHR $T1,$sigma0[2] 150238384Sjkim $ROT $t2,$t0,`$sigma0[1]-$sigma0[0]` 151238384Sjkim xgr $T1,$t0 152238384Sjkim $ROT $t0,$t1,$sigma1[0] 153238384Sjkim xgr $T1,$t2 # sigma0(X[i+1]) 154238384Sjkim $SHR $t1,$sigma1[2] 155238384Sjkim $ADD $T1,`$stdframe+$SZ*($i%16)`($sp) # +=X[i] 156238384Sjkim xgr $t1,$t0 157238384Sjkim $ROT $t0,$t0,`$sigma1[1]-$sigma1[0]` 158238384Sjkim $ADD $T1,`$stdframe+$SZ*(($i+9)%16)`($sp) # +=X[i+9] 159238384Sjkim xgr $t1,$t0 # sigma1(X[i+14]) 160238384Sjkim algr $T1,$t1 # +=sigma1(X[i+14]) 161238384Sjkim___ 162238384Sjkim &BODY_00_15(@_); 163238384Sjkim} 164238384Sjkim 165238384Sjkim$code.=<<___; 166238384Sjkim.text 167238384Sjkim.align 64 168238384Sjkim.type $Table,\@object 169238384Sjkim$Table: 170238384Sjkim___ 171238384Sjkim$code.=<<___ if ($SZ==4); 172238384Sjkim .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 173238384Sjkim .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 174238384Sjkim .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 175238384Sjkim .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 176238384Sjkim .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc 177238384Sjkim .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da 178238384Sjkim .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 179238384Sjkim .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 180238384Sjkim .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 181238384Sjkim .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 182238384Sjkim .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 183238384Sjkim .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 184238384Sjkim .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 185238384Sjkim .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 186238384Sjkim .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 187238384Sjkim .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 188238384Sjkim___ 189238384Sjkim$code.=<<___ if ($SZ==8); 190238384Sjkim .quad 0x428a2f98d728ae22,0x7137449123ef65cd 191238384Sjkim .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc 192238384Sjkim .quad 0x3956c25bf348b538,0x59f111f1b605d019 193238384Sjkim .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 194238384Sjkim .quad 0xd807aa98a3030242,0x12835b0145706fbe 195238384Sjkim .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 196238384Sjkim .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 197238384Sjkim .quad 0x9bdc06a725c71235,0xc19bf174cf692694 198238384Sjkim .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 199238384Sjkim .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 200238384Sjkim .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 201238384Sjkim .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 202238384Sjkim .quad 0x983e5152ee66dfab,0xa831c66d2db43210 203238384Sjkim .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 204238384Sjkim .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 205238384Sjkim .quad 0x06ca6351e003826f,0x142929670a0e6e70 206238384Sjkim .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 207238384Sjkim .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df 208238384Sjkim .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 209238384Sjkim .quad 0x81c2c92e47edaee6,0x92722c851482353b 210238384Sjkim .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 211238384Sjkim .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 212238384Sjkim .quad 0xd192e819d6ef5218,0xd69906245565a910 213238384Sjkim .quad 0xf40e35855771202a,0x106aa07032bbd1b8 214238384Sjkim .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 215238384Sjkim .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 216238384Sjkim .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb 217238384Sjkim .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 218238384Sjkim .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 219238384Sjkim .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec 220238384Sjkim .quad 0x90befffa23631e28,0xa4506cebde82bde9 221238384Sjkim .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b 222238384Sjkim .quad 0xca273eceea26619c,0xd186b8c721c0c207 223238384Sjkim .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 224238384Sjkim .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 225238384Sjkim .quad 0x113f9804bef90dae,0x1b710b35131c471b 226238384Sjkim .quad 0x28db77f523047d84,0x32caab7b40c72493 227238384Sjkim .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c 228238384Sjkim .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a 229238384Sjkim .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 230238384Sjkim___ 231238384Sjkim$code.=<<___; 232238384Sjkim.size $Table,.-$Table 233238384Sjkim.globl $Func 234238384Sjkim.type $Func,\@function 235238384Sjkim$Func: 236238384Sjkim sllg $len,$len,`log(16*$SZ)/log(2)` 237238384Sjkim___ 238238384Sjkim$code.=<<___ if ($kimdfunc); 239238384Sjkim larl %r1,OPENSSL_s390xcap_P 240238384Sjkim lg %r0,0(%r1) 241238384Sjkim tmhl %r0,0x4000 # check for message-security assist 242238384Sjkim jz .Lsoftware 243238384Sjkim lghi %r0,0 244238384Sjkim la %r1,`2*$SIZE_T`($sp) 245238384Sjkim .long 0xb93e0002 # kimd %r0,%r2 246238384Sjkim lg %r0,`2*$SIZE_T`($sp) 247238384Sjkim tmhh %r0,`0x8000>>$kimdfunc` 248238384Sjkim jz .Lsoftware 249238384Sjkim lghi %r0,$kimdfunc 250238384Sjkim lgr %r1,$ctx 251238384Sjkim lgr %r2,$inp 252238384Sjkim lgr %r3,$len 253238384Sjkim .long 0xb93e0002 # kimd %r0,%r2 254238384Sjkim brc 1,.-4 # pay attention to "partial completion" 255238384Sjkim br %r14 256238384Sjkim.align 16 257238384Sjkim.Lsoftware: 258238384Sjkim___ 259238384Sjkim$code.=<<___; 260238384Sjkim lghi %r1,-$frame 261238384Sjkim la $len,0($len,$inp) 262238384Sjkim stm${g} $ctx,%r15,`2*$SIZE_T`($sp) 263238384Sjkim lgr %r0,$sp 264238384Sjkim la $sp,0(%r1,$sp) 265238384Sjkim st${g} %r0,0($sp) 266238384Sjkim 267238384Sjkim larl $tbl,$Table 268238384Sjkim $LD $A,`0*$SZ`($ctx) 269238384Sjkim $LD $B,`1*$SZ`($ctx) 270238384Sjkim $LD $C,`2*$SZ`($ctx) 271238384Sjkim $LD $D,`3*$SZ`($ctx) 272238384Sjkim $LD $E,`4*$SZ`($ctx) 273238384Sjkim $LD $F,`5*$SZ`($ctx) 274238384Sjkim $LD $G,`6*$SZ`($ctx) 275238384Sjkim $LD $H,`7*$SZ`($ctx) 276238384Sjkim 277238384Sjkim.Lloop: 278238384Sjkim lghi $len,0 279238384Sjkim___ 280238384Sjkimfor ($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); } 281238384Sjkim$code.=".Lrounds_16_xx:\n"; 282238384Sjkimfor (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); } 283238384Sjkim$code.=<<___; 284238384Sjkim aghi $len,`16*$SZ` 285238384Sjkim lghi $t0,`($rounds-16)*$SZ` 286238384Sjkim clgr $len,$t0 287238384Sjkim jne .Lrounds_16_xx 288238384Sjkim 289238384Sjkim l${g} $ctx,`$frame+2*$SIZE_T`($sp) 290238384Sjkim la $inp,`16*$SZ`($inp) 291238384Sjkim $ADD $A,`0*$SZ`($ctx) 292238384Sjkim $ADD $B,`1*$SZ`($ctx) 293238384Sjkim $ADD $C,`2*$SZ`($ctx) 294238384Sjkim $ADD $D,`3*$SZ`($ctx) 295238384Sjkim $ADD $E,`4*$SZ`($ctx) 296238384Sjkim $ADD $F,`5*$SZ`($ctx) 297238384Sjkim $ADD $G,`6*$SZ`($ctx) 298238384Sjkim $ADD $H,`7*$SZ`($ctx) 299238384Sjkim $ST $A,`0*$SZ`($ctx) 300238384Sjkim $ST $B,`1*$SZ`($ctx) 301238384Sjkim $ST $C,`2*$SZ`($ctx) 302238384Sjkim $ST $D,`3*$SZ`($ctx) 303238384Sjkim $ST $E,`4*$SZ`($ctx) 304238384Sjkim $ST $F,`5*$SZ`($ctx) 305238384Sjkim $ST $G,`6*$SZ`($ctx) 306238384Sjkim $ST $H,`7*$SZ`($ctx) 307238384Sjkim cl${g} $inp,`$frame+4*$SIZE_T`($sp) 308238384Sjkim jne .Lloop 309238384Sjkim 310238384Sjkim lm${g} %r6,%r15,`$frame+6*$SIZE_T`($sp) 311238384Sjkim br %r14 312238384Sjkim.size $Func,.-$Func 313238384Sjkim.string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>" 314238384Sjkim.comm OPENSSL_s390xcap_P,16,8 315238384Sjkim___ 316238384Sjkim 317238384Sjkim$code =~ s/\`([^\`]*)\`/eval $1/gem; 318238384Sjkim# unlike 32-bit shift 64-bit one takes three arguments 319238384Sjkim$code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm; 320238384Sjkim 321238384Sjkimprint $code; 322238384Sjkimclose STDOUT; 323