crypto/ppccpuid.pl

   1 #!/usr/bin/env perl
   2
   3 $flavour = shift;
   4
   5 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
   6 ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
   7 ( $xlate="${dir}perlasm/ppc-xlate.pl" and -f $xlate) or
   8 die "can't locate ppc-xlate.pl";
   9
  10 open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
  11
  12 if ($flavour=~/64/) {
  13     $CMPLI="cmpldi";
  14     $SHRLI="srdi";
  15     $SIGNX="extsw";
  16 } else {
  17     $CMPLI="cmplwi";
  18     $SHRLI="srwi";
  19     $SIGNX="mr";
  20 }
  21
  22 $code=<<___;
  23 .machine        "any"
  24 .text
  25
  26 .globl  .OPENSSL_ppc64_probe
  27 .align  4
  28 .OPENSSL_ppc64_probe:
  29         fcfid   f1,f1
  30         extrdi  r0,r0,32,0
  31         blr
  32         .long   0
  33         .byte   0,12,0x14,0,0,0,0,0
  34 .size   .OPENSSL_ppc64_probe,.-.OPENSSL_ppc64_probe
  35
  36 .globl  .OPENSSL_altivec_probe
  37 .align  4
  38 .OPENSSL_altivec_probe:
  39         .long   0x10000484      # vor   v0,v0,v0
  40         blr
  41         .long   0
  42         .byte   0,12,0x14,0,0,0,0,0
  43 .size   .OPENSSL_altivec_probe,.-..OPENSSL_altivec_probe
  44
  45 .globl  .OPENSSL_crypto207_probe
  46 .align  4
  47 .OPENSSL_crypto207_probe:
  48         lvx_u   v0,0,r1
  49         vcipher v0,v0,v0
  50         blr
  51         .long   0
  52         .byte   0,12,0x14,0,0,0,0,0
  53 .size   .OPENSSL_crypto207_probe,.-.OPENSSL_crypto207_probe
  54
  55 .globl  .OPENSSL_wipe_cpu
  56 .align  4
  57 .OPENSSL_wipe_cpu:
  58         xor     r0,r0,r0
  59         fmr     f0,f31
  60         fmr     f1,f31
  61         fmr     f2,f31
  62         mr      r3,r1
  63         fmr     f3,f31
  64         xor     r4,r4,r4
  65         fmr     f4,f31
  66         xor     r5,r5,r5
  67         fmr     f5,f31
  68         xor     r6,r6,r6
  69         fmr     f6,f31
  70         xor     r7,r7,r7
  71         fmr     f7,f31
  72         xor     r8,r8,r8
  73         fmr     f8,f31
  74         xor     r9,r9,r9
  75         fmr     f9,f31
  76         xor     r10,r10,r10
  77         fmr     f10,f31
  78         xor     r11,r11,r11
  79         fmr     f11,f31
  80         xor     r12,r12,r12
  81         fmr     f12,f31
  82         fmr     f13,f31
  83         blr
  84         .long   0
  85         .byte   0,12,0x14,0,0,0,0,0
  86 .size   .OPENSSL_wipe_cpu,.-.OPENSSL_wipe_cpu
  87
  88 .globl  .OPENSSL_atomic_add
  89 .align  4
  90 .OPENSSL_atomic_add:
  91 Ladd:   lwarx   r5,0,r3
  92         add     r0,r4,r5
  93         stwcx.  r0,0,r3
  94         bne-    Ladd
  95         $SIGNX  r3,r0
  96         blr
  97         .long   0
  98         .byte   0,12,0x14,0,0,0,2,0
  99         .long   0
 100 .size   .OPENSSL_atomic_add,.-.OPENSSL_atomic_add
 101
 102 .globl  .OPENSSL_rdtsc
 103 .align  4
 104 .OPENSSL_rdtsc:
 105         mftb    r3
 106         mftbu   r4
 107         blr
 108         .long   0
 109         .byte   0,12,0x14,0,0,0,0,0
 110 .size   .OPENSSL_rdtsc,.-.OPENSSL_rdtsc
 111
 112 .globl  .OPENSSL_cleanse
 113 .align  4
 114 .OPENSSL_cleanse:
 115         $CMPLI  r4,7
 116         li      r0,0
 117         bge     Lot
 118         $CMPLI  r4,0
 119         beqlr-
 120 Little: mtctr   r4
 121         stb     r0,0(r3)
 122         addi    r3,r3,1
 123         bdnz    \$-8
 124         blr
 125 Lot:    andi.   r5,r3,3
 126         beq     Laligned
 127         stb     r0,0(r3)
 128         subi    r4,r4,1
 129         addi    r3,r3,1
 130         b       Lot
 131 Laligned:
 132         $SHRLI  r5,r4,2
 133         mtctr   r5
 134         stw     r0,0(r3)
 135         addi    r3,r3,4
 136         bdnz    \$-8
 137         andi.   r4,r4,3
 138         bne     Little
 139         blr
 140         .long   0
 141         .byte   0,12,0x14,0,0,0,2,0
 142         .long   0
 143 .size   .OPENSSL_cleanse,.-.OPENSSL_cleanse
 144 ___
 145 {
 146 my ($out,$cnt,$max)=("r3","r4","r5");
 147 my ($tick,$lasttick)=("r6","r7");
 148 my ($diff,$lastdiff)=("r8","r9");
 149
 150 $code.=<<___;
 151 .globl  .OPENSSL_instrument_bus
 152 .align  4
 153 .OPENSSL_instrument_bus:
 154         mtctr   $cnt
 155
 156         mftb    $lasttick               # collect 1st tick
 157         li      $diff,0
 158
 159         dcbf    0,$out                  # flush cache line
 160         lwarx   $tick,0,$out            # load and lock
 161         add     $tick,$tick,$diff
 162         stwcx.  $tick,0,$out
 163         stwx    $tick,0,$out
 164
 165 Loop:   mftb    $tick
 166         sub     $diff,$tick,$lasttick
 167         mr      $lasttick,$tick
 168         dcbf    0,$out                  # flush cache line
 169         lwarx   $tick,0,$out            # load and lock
 170         add     $tick,$tick,$diff
 171         stwcx.  $tick,0,$out
 172         stwx    $tick,0,$out
 173         addi    $out,$out,4             # ++$out
 174         bdnz    Loop
 175
 176         mr      r3,$cnt
 177         blr
 178         .long   0
 179         .byte   0,12,0x14,0,0,0,2,0
 180         .long   0
 181 .size   .OPENSSL_instrument_bus,.-.OPENSSL_instrument_bus
 182
 183 .globl  .OPENSSL_instrument_bus2
 184 .align  4
 185 .OPENSSL_instrument_bus2:
 186         mr      r0,$cnt
 187         slwi    $cnt,$cnt,2
 188
 189         mftb    $lasttick               # collect 1st tick
 190         li      $diff,0
 191
 192         dcbf    0,$out                  # flush cache line
 193         lwarx   $tick,0,$out            # load and lock
 194         add     $tick,$tick,$diff
 195         stwcx.  $tick,0,$out
 196         stwx    $tick,0,$out
 197
 198         mftb    $tick                   # collect 1st diff
 199         sub     $diff,$tick,$lasttick
 200         mr      $lasttick,$tick
 201         mr      $lastdiff,$diff
 202 Loop2:
 203         dcbf    0,$out                  # flush cache line
 204         lwarx   $tick,0,$out            # load and lock
 205         add     $tick,$tick,$diff
 206         stwcx.  $tick,0,$out
 207         stwx    $tick,0,$out
 208
 209         addic.  $max,$max,-1
 210         beq     Ldone2
 211
 212         mftb    $tick
 213         sub     $diff,$tick,$lasttick
 214         mr      $lasttick,$tick
 215         cmplw   7,$diff,$lastdiff
 216         mr      $lastdiff,$diff
 217
 218         mfcr    $tick                   # pull cr
 219         not     $tick,$tick             # flip bits
 220         rlwinm  $tick,$tick,1,29,29     # isolate flipped eq bit and scale
 221
 222         sub.    $cnt,$cnt,$tick         # conditional --$cnt
 223         add     $out,$out,$tick         # conditional ++$out
 224         bne     Loop2
 225
 226 Ldone2:
 227         srwi    $cnt,$cnt,2
 228         sub     r3,r0,$cnt
 229         blr
 230         .long   0
 231         .byte   0,12,0x14,0,0,0,3,0
 232         .long   0
 233 .size   .OPENSSL_instrument_bus2,.-.OPENSSL_instrument_bus2
 234 ___
 235 }
 236
 237 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 238 print $code;
 239 close STDOUT;