| #!/usr/bin/env perl |
| |
| # ==================================================================== |
| # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
| # project. The module is, however, dual licensed under OpenSSL and |
| # CRYPTOGAMS licenses depending on where you obtain it. For further |
| # details see http://www.openssl.org/~appro/cryptogams/. |
| # ==================================================================== |
| |
| # SHA256/512 block procedures for s390x. |
| |
| # April 2007. |
| # |
| # sha256_block_data_order is reportedly >3 times faster than gcc 3.3 |
| # generated code (must be a bug in compiler, as improvement is |
| # "pathologically" high, in particular in comparison to other SHA |
| # modules). But the real twist is that it detects if hardware support |
| # for SHA256 is available and in such case utilizes it. Then the |
| # performance can reach >6.5x of assembler one for larger chunks. |
| # |
| # sha512_block_data_order is ~70% faster than gcc 3.3 generated code. |
| |
| # January 2009. |
| # |
| # Add support for hardware SHA512 and reschedule instructions to |
| # favour dual-issue z10 pipeline. Hardware SHA256/512 is ~4.7x faster |
| # than software. |
| |
| # November 2010. |
| # |
| # Adapt for -m31 build. If kernel supports what's called "highgprs" |
| # feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit |
| # instructions and achieve "64-bit" performance even in 31-bit legacy |
| # application context. The feature is not specific to any particular |
| # processor, as long as it's "z-CPU". Latter implies that the code |
| # remains z/Architecture specific. On z900 SHA256 was measured to |
| # perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3. |
| |
| $flavour = shift; |
| |
| if ($flavour =~ /3[12]/) { |
| $SIZE_T=4; |
| $g=""; |
| } else { |
| $SIZE_T=8; |
| $g="g"; |
| } |
| |
| $t0="%r0"; |
| $t1="%r1"; |
| $ctx="%r2"; $t2="%r2"; |
| $inp="%r3"; |
| $len="%r4"; # used as index in inner loop |
| |
| $A="%r5"; |
| $B="%r6"; |
| $C="%r7"; |
| $D="%r8"; |
| $E="%r9"; |
| $F="%r10"; |
| $G="%r11"; |
| $H="%r12"; @V=($A,$B,$C,$D,$E,$F,$G,$H); |
| $tbl="%r13"; |
| $T1="%r14"; |
| $sp="%r15"; |
| |
| while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} |
| open STDOUT,">$output"; |
| |
| if ($output =~ /512/) { |
| $label="512"; |
| $SZ=8; |
| $LD="lg"; # load from memory |
| $ST="stg"; # store to memory |
| $ADD="alg"; # add with memory operand |
| $ROT="rllg"; # rotate left |
| $SHR="srlg"; # logical right shift [see even at the end] |
| @Sigma0=(25,30,36); |
| @Sigma1=(23,46,50); |
| @sigma0=(56,63, 7); |
| @sigma1=( 3,45, 6); |
| $rounds=80; |
| $kimdfunc=3; # 0 means unknown/unsupported/unimplemented/disabled |
| } else { |
| $label="256"; |
| $SZ=4; |
| $LD="llgf"; # load from memory |
| $ST="st"; # store to memory |
| $ADD="al"; # add with memory operand |
| $ROT="rll"; # rotate left |
| $SHR="srl"; # logical right shift |
| @Sigma0=(10,19,30); |
| @Sigma1=( 7,21,26); |
| @sigma0=(14,25, 3); |
| @sigma1=(13,15,10); |
| $rounds=64; |
| $kimdfunc=2; # magic function code for kimd instruction |
| } |
| $Func="sha${label}_block_data_order"; |
| $Table="K${label}"; |
| $stdframe=16*$SIZE_T+4*8; |
| $frame=$stdframe+16*$SZ; |
| |
| sub BODY_00_15 { |
| my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; |
| |
| $code.=<<___ if ($i<16); |
| $LD $T1,`$i*$SZ`($inp) ### $i |
| ___ |
| $code.=<<___; |
| $ROT $t0,$e,$Sigma1[0] |
| $ROT $t1,$e,$Sigma1[1] |
| lgr $t2,$f |
| xgr $t0,$t1 |
| $ROT $t1,$t1,`$Sigma1[2]-$Sigma1[1]` |
| xgr $t2,$g |
| $ST $T1,`$stdframe+$SZ*($i%16)`($sp) |
| xgr $t0,$t1 # Sigma1(e) |
| algr $T1,$h # T1+=h |
| ngr $t2,$e |
| lgr $t1,$a |
| algr $T1,$t0 # T1+=Sigma1(e) |
| $ROT $h,$a,$Sigma0[0] |
| xgr $t2,$g # Ch(e,f,g) |
| $ADD $T1,`$i*$SZ`($len,$tbl) # T1+=K[i] |
| $ROT $t0,$a,$Sigma0[1] |
| algr $T1,$t2 # T1+=Ch(e,f,g) |
| ogr $t1,$b |
| xgr $h,$t0 |
| lgr $t2,$a |
| ngr $t1,$c |
| $ROT $t0,$t0,`$Sigma0[2]-$Sigma0[1]` |
| xgr $h,$t0 # h=Sigma0(a) |
| ngr $t2,$b |
| algr $h,$T1 # h+=T1 |
| ogr $t2,$t1 # Maj(a,b,c) |
| algr $d,$T1 # d+=T1 |
| algr $h,$t2 # h+=Maj(a,b,c) |
| ___ |
| } |
| |
| sub BODY_16_XX { |
| my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; |
| |
| $code.=<<___; |
| $LD $T1,`$stdframe+$SZ*(($i+1)%16)`($sp) ### $i |
| $LD $t1,`$stdframe+$SZ*(($i+14)%16)`($sp) |
| $ROT $t0,$T1,$sigma0[0] |
| $SHR $T1,$sigma0[2] |
| $ROT $t2,$t0,`$sigma0[1]-$sigma0[0]` |
| xgr $T1,$t0 |
| $ROT $t0,$t1,$sigma1[0] |
| xgr $T1,$t2 # sigma0(X[i+1]) |
| $SHR $t1,$sigma1[2] |
| $ADD $T1,`$stdframe+$SZ*($i%16)`($sp) # +=X[i] |
| xgr $t1,$t0 |
| $ROT $t0,$t0,`$sigma1[1]-$sigma1[0]` |
| $ADD $T1,`$stdframe+$SZ*(($i+9)%16)`($sp) # +=X[i+9] |
| xgr $t1,$t0 # sigma1(X[i+14]) |
| algr $T1,$t1 # +=sigma1(X[i+14]) |
| ___ |
| &BODY_00_15(@_); |
| } |
| |
| $code.=<<___; |
| .text |
| .align 64 |
| .type $Table,\@object |
| $Table: |
| ___ |
| $code.=<<___ if ($SZ==4); |
| .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 |
| .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 |
| .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 |
| .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 |
| .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc |
| .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da |
| .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 |
| .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 |
| .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 |
| .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 |
| .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 |
| .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 |
| .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 |
| .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 |
| .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 |
| .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 |
| ___ |
| $code.=<<___ if ($SZ==8); |
| .quad 0x428a2f98d728ae22,0x7137449123ef65cd |
| .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc |
| .quad 0x3956c25bf348b538,0x59f111f1b605d019 |
| .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 |
| .quad 0xd807aa98a3030242,0x12835b0145706fbe |
| .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 |
| .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 |
| .quad 0x9bdc06a725c71235,0xc19bf174cf692694 |
| .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 |
| .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 |
| .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 |
| .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 |
| .quad 0x983e5152ee66dfab,0xa831c66d2db43210 |
| .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 |
| .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 |
| .quad 0x06ca6351e003826f,0x142929670a0e6e70 |
| .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 |
| .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df |
| .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 |
| .quad 0x81c2c92e47edaee6,0x92722c851482353b |
| .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 |
| .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 |
| .quad 0xd192e819d6ef5218,0xd69906245565a910 |
| .quad 0xf40e35855771202a,0x106aa07032bbd1b8 |
| .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 |
| .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 |
| .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb |
| .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 |
| .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 |
| .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec |
| .quad 0x90befffa23631e28,0xa4506cebde82bde9 |
| .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b |
| .quad 0xca273eceea26619c,0xd186b8c721c0c207 |
| .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 |
| .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 |
| .quad 0x113f9804bef90dae,0x1b710b35131c471b |
| .quad 0x28db77f523047d84,0x32caab7b40c72493 |
| .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c |
| .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a |
| .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 |
| ___ |
| $code.=<<___; |
| .size $Table,.-$Table |
| .globl $Func |
| .type $Func,\@function |
| $Func: |
| sllg $len,$len,`log(16*$SZ)/log(2)` |
| ___ |
| $code.=<<___ if ($kimdfunc); |
| larl %r1,OPENSSL_s390xcap_P |
| lg %r0,0(%r1) |
| tmhl %r0,0x4000 # check for message-security assist |
| jz .Lsoftware |
| lghi %r0,0 |
| la %r1,`2*$SIZE_T`($sp) |
| .long 0xb93e0002 # kimd %r0,%r2 |
| lg %r0,`2*$SIZE_T`($sp) |
| tmhh %r0,`0x8000>>$kimdfunc` |
| jz .Lsoftware |
| lghi %r0,$kimdfunc |
| lgr %r1,$ctx |
| lgr %r2,$inp |
| lgr %r3,$len |
| .long 0xb93e0002 # kimd %r0,%r2 |
| brc 1,.-4 # pay attention to "partial completion" |
| br %r14 |
| .align 16 |
| .Lsoftware: |
| ___ |
| $code.=<<___; |
| lghi %r1,-$frame |
| la $len,0($len,$inp) |
| stm${g} $ctx,%r15,`2*$SIZE_T`($sp) |
| lgr %r0,$sp |
| la $sp,0(%r1,$sp) |
| st${g} %r0,0($sp) |
| |
| larl $tbl,$Table |
| $LD $A,`0*$SZ`($ctx) |
| $LD $B,`1*$SZ`($ctx) |
| $LD $C,`2*$SZ`($ctx) |
| $LD $D,`3*$SZ`($ctx) |
| $LD $E,`4*$SZ`($ctx) |
| $LD $F,`5*$SZ`($ctx) |
| $LD $G,`6*$SZ`($ctx) |
| $LD $H,`7*$SZ`($ctx) |
| |
| .Lloop: |
| lghi $len,0 |
| ___ |
| for ($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); } |
| $code.=".Lrounds_16_xx:\n"; |
| for (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); } |
| $code.=<<___; |
| aghi $len,`16*$SZ` |
| lghi $t0,`($rounds-16)*$SZ` |
| clgr $len,$t0 |
| jne .Lrounds_16_xx |
| |
| l${g} $ctx,`$frame+2*$SIZE_T`($sp) |
| la $inp,`16*$SZ`($inp) |
| $ADD $A,`0*$SZ`($ctx) |
| $ADD $B,`1*$SZ`($ctx) |
| $ADD $C,`2*$SZ`($ctx) |
| $ADD $D,`3*$SZ`($ctx) |
| $ADD $E,`4*$SZ`($ctx) |
| $ADD $F,`5*$SZ`($ctx) |
| $ADD $G,`6*$SZ`($ctx) |
| $ADD $H,`7*$SZ`($ctx) |
| $ST $A,`0*$SZ`($ctx) |
| $ST $B,`1*$SZ`($ctx) |
| $ST $C,`2*$SZ`($ctx) |
| $ST $D,`3*$SZ`($ctx) |
| $ST $E,`4*$SZ`($ctx) |
| $ST $F,`5*$SZ`($ctx) |
| $ST $G,`6*$SZ`($ctx) |
| $ST $H,`7*$SZ`($ctx) |
| cl${g} $inp,`$frame+4*$SIZE_T`($sp) |
| jne .Lloop |
| |
| lm${g} %r6,%r15,`$frame+6*$SIZE_T`($sp) |
| br %r14 |
| .size $Func,.-$Func |
| .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>" |
| .comm OPENSSL_s390xcap_P,16,8 |
| ___ |
| |
| $code =~ s/\`([^\`]*)\`/eval $1/gem; |
| # unlike 32-bit shift 64-bit one takes three arguments |
| $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm; |
| |
| print $code; |
| close STDOUT; |