| 1 | #! /usr/bin/env perl
|
|---|
| 2 | # Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 3 | #
|
|---|
| 4 | # Licensed under the OpenSSL license (the "License"). You may not use
|
|---|
| 5 | # this file except in compliance with the License. You can obtain a copy
|
|---|
| 6 | # in the file LICENSE in the source distribution or at
|
|---|
| 7 | # https://www.openssl.org/source/license.html
|
|---|
| 8 |
|
|---|
| 9 |
|
|---|
| 10 | # ====================================================================
|
|---|
| 11 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
|
|---|
| 12 | # project. The module is, however, dual licensed under OpenSSL and
|
|---|
| 13 | # CRYPTOGAMS licenses depending on where you obtain it. For further
|
|---|
| 14 | # details see http://www.openssl.org/~appro/cryptogams/.
|
|---|
| 15 | # ====================================================================
|
|---|
| 16 |
|
|---|
| 17 | # SHA1 block procedure for s390x.
|
|---|
| 18 |
|
|---|
| 19 | # April 2007.
|
|---|
| 20 | #
|
|---|
| 21 | # Performance is >30% better than gcc 3.3 generated code. But the real
|
|---|
| 22 | # twist is that SHA1 hardware support is detected and utilized. In
|
|---|
| 23 | # which case performance can reach further >4.5x for larger chunks.
|
|---|
| 24 |
|
|---|
| 25 | # January 2009.
|
|---|
| 26 | #
|
|---|
| 27 | # Optimize Xupdate for amount of memory references and reschedule
|
|---|
| 28 | # instructions to favour dual-issue z10 pipeline. On z10 hardware is
|
|---|
| 29 | # "only" ~2.3x faster than software.
|
|---|
| 30 |
|
|---|
| 31 | # November 2010.
|
|---|
| 32 | #
|
|---|
| 33 | # Adapt for -m31 build. If kernel supports what's called "highgprs"
|
|---|
| 34 | # feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit
|
|---|
| 35 | # instructions and achieve "64-bit" performance even in 31-bit legacy
|
|---|
| 36 | # application context. The feature is not specific to any particular
|
|---|
| 37 | # processor, as long as it's "z-CPU". Latter implies that the code
|
|---|
| 38 | # remains z/Architecture specific. On z990 it was measured to perform
|
|---|
| 39 | # 23% better than code generated by gcc 4.3.
|
|---|
| 40 |
|
|---|
| 41 | $kimdfunc=1; # magic function code for kimd instruction
|
|---|
| 42 |
|
|---|
| 43 | $flavour = shift;
|
|---|
| 44 |
|
|---|
| 45 | if ($flavour =~ /3[12]/) {
|
|---|
| 46 | $SIZE_T=4;
|
|---|
| 47 | $g="";
|
|---|
| 48 | } else {
|
|---|
| 49 | $SIZE_T=8;
|
|---|
| 50 | $g="g";
|
|---|
| 51 | }
|
|---|
| 52 |
|
|---|
| 53 | while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
|
|---|
| 54 | open STDOUT,">$output";
|
|---|
| 55 |
|
|---|
| 56 | $K_00_39="%r0"; $K=$K_00_39;
|
|---|
| 57 | $K_40_79="%r1";
|
|---|
| 58 | $ctx="%r2"; $prefetch="%r2";
|
|---|
| 59 | $inp="%r3";
|
|---|
| 60 | $len="%r4";
|
|---|
| 61 |
|
|---|
| 62 | $A="%r5";
|
|---|
| 63 | $B="%r6";
|
|---|
| 64 | $C="%r7";
|
|---|
| 65 | $D="%r8";
|
|---|
| 66 | $E="%r9"; @V=($A,$B,$C,$D,$E);
|
|---|
| 67 | $t0="%r10";
|
|---|
| 68 | $t1="%r11";
|
|---|
| 69 | @X=("%r12","%r13","%r14");
|
|---|
| 70 | $sp="%r15";
|
|---|
| 71 |
|
|---|
| 72 | $stdframe=16*$SIZE_T+4*8;
|
|---|
| 73 | $frame=$stdframe+16*4;
|
|---|
| 74 |
|
|---|
| 75 | sub Xupdate {
|
|---|
| 76 | my $i=shift;
|
|---|
| 77 |
|
|---|
| 78 | $code.=<<___ if ($i==15);
|
|---|
| 79 | lg $prefetch,$stdframe($sp) ### Xupdate(16) warm-up
|
|---|
| 80 | lr $X[0],$X[2]
|
|---|
| 81 | ___
|
|---|
| 82 | return if ($i&1); # Xupdate is vectorized and executed every 2nd cycle
|
|---|
| 83 | $code.=<<___ if ($i<16);
|
|---|
| 84 | lg $X[0],`$i*4`($inp) ### Xload($i)
|
|---|
| 85 | rllg $X[1],$X[0],32
|
|---|
| 86 | ___
|
|---|
| 87 | $code.=<<___ if ($i>=16);
|
|---|
| 88 | xgr $X[0],$prefetch ### Xupdate($i)
|
|---|
| 89 | lg $prefetch,`$stdframe+4*(($i+2)%16)`($sp)
|
|---|
| 90 | xg $X[0],`$stdframe+4*(($i+8)%16)`($sp)
|
|---|
| 91 | xgr $X[0],$prefetch
|
|---|
| 92 | rll $X[0],$X[0],1
|
|---|
| 93 | rllg $X[1],$X[0],32
|
|---|
| 94 | rll $X[1],$X[1],1
|
|---|
| 95 | rllg $X[0],$X[1],32
|
|---|
| 96 | lr $X[2],$X[1] # feedback
|
|---|
| 97 | ___
|
|---|
| 98 | $code.=<<___ if ($i<=70);
|
|---|
| 99 | stg $X[0],`$stdframe+4*($i%16)`($sp)
|
|---|
| 100 | ___
|
|---|
| 101 | unshift(@X,pop(@X));
|
|---|
| 102 | }
|
|---|
| 103 |
|
|---|
| 104 | sub BODY_00_19 {
|
|---|
| 105 | my ($i,$a,$b,$c,$d,$e)=@_;
|
|---|
| 106 | my $xi=$X[1];
|
|---|
| 107 |
|
|---|
| 108 | &Xupdate($i);
|
|---|
| 109 | $code.=<<___;
|
|---|
| 110 | alr $e,$K ### $i
|
|---|
| 111 | rll $t1,$a,5
|
|---|
| 112 | lr $t0,$d
|
|---|
| 113 | xr $t0,$c
|
|---|
| 114 | alr $e,$t1
|
|---|
| 115 | nr $t0,$b
|
|---|
| 116 | alr $e,$xi
|
|---|
| 117 | xr $t0,$d
|
|---|
| 118 | rll $b,$b,30
|
|---|
| 119 | alr $e,$t0
|
|---|
| 120 | ___
|
|---|
| 121 | }
|
|---|
| 122 |
|
|---|
| 123 | sub BODY_20_39 {
|
|---|
| 124 | my ($i,$a,$b,$c,$d,$e)=@_;
|
|---|
| 125 | my $xi=$X[1];
|
|---|
| 126 |
|
|---|
| 127 | &Xupdate($i);
|
|---|
| 128 | $code.=<<___;
|
|---|
| 129 | alr $e,$K ### $i
|
|---|
| 130 | rll $t1,$a,5
|
|---|
| 131 | lr $t0,$b
|
|---|
| 132 | alr $e,$t1
|
|---|
| 133 | xr $t0,$c
|
|---|
| 134 | alr $e,$xi
|
|---|
| 135 | xr $t0,$d
|
|---|
| 136 | rll $b,$b,30
|
|---|
| 137 | alr $e,$t0
|
|---|
| 138 | ___
|
|---|
| 139 | }
|
|---|
| 140 |
|
|---|
| 141 | sub BODY_40_59 {
|
|---|
| 142 | my ($i,$a,$b,$c,$d,$e)=@_;
|
|---|
| 143 | my $xi=$X[1];
|
|---|
| 144 |
|
|---|
| 145 | &Xupdate($i);
|
|---|
| 146 | $code.=<<___;
|
|---|
| 147 | alr $e,$K ### $i
|
|---|
| 148 | rll $t1,$a,5
|
|---|
| 149 | lr $t0,$b
|
|---|
| 150 | alr $e,$t1
|
|---|
| 151 | or $t0,$c
|
|---|
| 152 | lr $t1,$b
|
|---|
| 153 | nr $t0,$d
|
|---|
| 154 | nr $t1,$c
|
|---|
| 155 | alr $e,$xi
|
|---|
| 156 | or $t0,$t1
|
|---|
| 157 | rll $b,$b,30
|
|---|
| 158 | alr $e,$t0
|
|---|
| 159 | ___
|
|---|
| 160 | }
|
|---|
| 161 |
|
|---|
| 162 | $code.=<<___;
|
|---|
| 163 | .text
|
|---|
| 164 | .align 64
|
|---|
| 165 | .type Ktable,\@object
|
|---|
| 166 | Ktable: .long 0x5a827999,0x6ed9eba1,0x8f1bbcdc,0xca62c1d6
|
|---|
| 167 | .skip 48 #.long 0,0,0,0,0,0,0,0,0,0,0,0
|
|---|
| 168 | .size Ktable,.-Ktable
|
|---|
| 169 | .globl sha1_block_data_order
|
|---|
| 170 | .type sha1_block_data_order,\@function
|
|---|
| 171 | sha1_block_data_order:
|
|---|
| 172 | ___
|
|---|
| 173 | $code.=<<___ if ($kimdfunc);
|
|---|
| 174 | larl %r1,OPENSSL_s390xcap_P
|
|---|
| 175 | lg %r0,16(%r1) # check kimd capabilities
|
|---|
| 176 | tmhh %r0,`0x8000>>$kimdfunc`
|
|---|
| 177 | jz .Lsoftware
|
|---|
| 178 | lghi %r0,$kimdfunc
|
|---|
| 179 | lgr %r1,$ctx
|
|---|
| 180 | lgr %r2,$inp
|
|---|
| 181 | sllg %r3,$len,6
|
|---|
| 182 | .long 0xb93e0002 # kimd %r0,%r2
|
|---|
| 183 | brc 1,.-4 # pay attention to "partial completion"
|
|---|
| 184 | br %r14
|
|---|
| 185 | .align 16
|
|---|
| 186 | .Lsoftware:
|
|---|
| 187 | ___
|
|---|
| 188 | $code.=<<___;
|
|---|
| 189 | lghi %r1,-$frame
|
|---|
| 190 | st${g} $ctx,`2*$SIZE_T`($sp)
|
|---|
| 191 | stm${g} %r6,%r15,`6*$SIZE_T`($sp)
|
|---|
| 192 | lgr %r0,$sp
|
|---|
| 193 | la $sp,0(%r1,$sp)
|
|---|
| 194 | st${g} %r0,0($sp)
|
|---|
| 195 |
|
|---|
| 196 | larl $t0,Ktable
|
|---|
| 197 | llgf $A,0($ctx)
|
|---|
| 198 | llgf $B,4($ctx)
|
|---|
| 199 | llgf $C,8($ctx)
|
|---|
| 200 | llgf $D,12($ctx)
|
|---|
| 201 | llgf $E,16($ctx)
|
|---|
| 202 |
|
|---|
| 203 | lg $K_00_39,0($t0)
|
|---|
| 204 | lg $K_40_79,8($t0)
|
|---|
| 205 |
|
|---|
| 206 | .Lloop:
|
|---|
| 207 | rllg $K_00_39,$K_00_39,32
|
|---|
| 208 | ___
|
|---|
| 209 | for ($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
|
|---|
| 210 | $code.=<<___;
|
|---|
| 211 | rllg $K_00_39,$K_00_39,32
|
|---|
| 212 | ___
|
|---|
| 213 | for (;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
|
|---|
| 214 | $code.=<<___; $K=$K_40_79;
|
|---|
| 215 | rllg $K_40_79,$K_40_79,32
|
|---|
| 216 | ___
|
|---|
| 217 | for (;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
|
|---|
| 218 | $code.=<<___;
|
|---|
| 219 | rllg $K_40_79,$K_40_79,32
|
|---|
| 220 | ___
|
|---|
| 221 | for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
|
|---|
| 222 | $code.=<<___;
|
|---|
| 223 |
|
|---|
| 224 | l${g} $ctx,`$frame+2*$SIZE_T`($sp)
|
|---|
| 225 | la $inp,64($inp)
|
|---|
| 226 | al $A,0($ctx)
|
|---|
| 227 | al $B,4($ctx)
|
|---|
| 228 | al $C,8($ctx)
|
|---|
| 229 | al $D,12($ctx)
|
|---|
| 230 | al $E,16($ctx)
|
|---|
| 231 | st $A,0($ctx)
|
|---|
| 232 | st $B,4($ctx)
|
|---|
| 233 | st $C,8($ctx)
|
|---|
| 234 | st $D,12($ctx)
|
|---|
| 235 | st $E,16($ctx)
|
|---|
| 236 | brct${g} $len,.Lloop
|
|---|
| 237 |
|
|---|
| 238 | lm${g} %r6,%r15,`$frame+6*$SIZE_T`($sp)
|
|---|
| 239 | br %r14
|
|---|
| 240 | .size sha1_block_data_order,.-sha1_block_data_order
|
|---|
| 241 | .string "SHA1 block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
|
|---|
| 242 | ___
|
|---|
| 243 |
|
|---|
| 244 | $code =~ s/\`([^\`]*)\`/eval $1/gem;
|
|---|
| 245 |
|
|---|
| 246 | print $code;
|
|---|
| 247 | close STDOUT;
|
|---|
