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