crypto/ppccpuid.pl

   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 $flavour = shift;
  11
  12 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
  13 ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
  14 ( $xlate="${dir}perlasm/ppc-xlate.pl" and -f $xlate) or
  15 die "can't locate ppc-xlate.pl";
  16
  17 open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
  18
  19 if ($flavour=~/64/) {
  20     $CMPLI="cmpldi";
  21     $SHRLI="srdi";
  22     $SIGNX="extsw";
  23 } else {
  24     $CMPLI="cmplwi";
  25     $SHRLI="srwi";
  26     $SIGNX="mr";
  27 }
  28
  29 $code=<<___;
  30 .machine        "any"
  31 .text
  32
  33 .globl  .OPENSSL_fpu_probe
  34 .align  4
  35 .OPENSSL_fpu_probe:
  36         fmr     f0,f0
  37         blr
  38         .long   0
  39         .byte   0,12,0x14,0,0,0,0,0
  40 .size   .OPENSSL_fpu_probe,.-.OPENSSL_fpu_probe
  41 .globl  .OPENSSL_ppc64_probe
  42 .align  4
  43 .OPENSSL_ppc64_probe:
  44         fcfid   f1,f1
  45         extrdi  r0,r0,32,0
  46         blr
  47         .long   0
  48         .byte   0,12,0x14,0,0,0,0,0
  49 .size   .OPENSSL_ppc64_probe,.-.OPENSSL_ppc64_probe
  50
  51 .globl  .OPENSSL_altivec_probe
  52 .align  4
  53 .OPENSSL_altivec_probe:
  54         .long   0x10000484      # vor   v0,v0,v0
  55         blr
  56         .long   0
  57         .byte   0,12,0x14,0,0,0,0,0
  58 .size   .OPENSSL_altivec_probe,.-..OPENSSL_altivec_probe
  59
  60 .globl  .OPENSSL_crypto207_probe
  61 .align  4
  62 .OPENSSL_crypto207_probe:
  63         lvx_u   v0,0,r1
  64         vcipher v0,v0,v0
  65         blr
  66         .long   0
  67         .byte   0,12,0x14,0,0,0,0,0
  68 .size   .OPENSSL_crypto207_probe,.-.OPENSSL_crypto207_probe
  69
  70 .globl  .OPENSSL_madd300_probe
  71 .align  4
  72 .OPENSSL_madd300_probe:
  73         xor     r0,r0,r0
  74         maddld  r3,r0,r0,r0
  75         maddhdu r3,r0,r0,r0
  76         blr
  77         .long   0
  78         .byte   0,12,0x14,0,0,0,0,0
  79
  80 .globl  .OPENSSL_wipe_cpu
  81 .align  4
  82 .OPENSSL_wipe_cpu:
  83         xor     r0,r0,r0
  84         fmr     f0,f31
  85         fmr     f1,f31
  86         fmr     f2,f31
  87         mr      r3,r1
  88         fmr     f3,f31
  89         xor     r4,r4,r4
  90         fmr     f4,f31
  91         xor     r5,r5,r5
  92         fmr     f5,f31
  93         xor     r6,r6,r6
  94         fmr     f6,f31
  95         xor     r7,r7,r7
  96         fmr     f7,f31
  97         xor     r8,r8,r8
  98         fmr     f8,f31
  99         xor     r9,r9,r9
 100         fmr     f9,f31
 101         xor     r10,r10,r10
 102         fmr     f10,f31
 103         xor     r11,r11,r11
 104         fmr     f11,f31
 105         xor     r12,r12,r12
 106         fmr     f12,f31
 107         fmr     f13,f31
 108         blr
 109         .long   0
 110         .byte   0,12,0x14,0,0,0,0,0
 111 .size   .OPENSSL_wipe_cpu,.-.OPENSSL_wipe_cpu
 112
 113 .globl  .OPENSSL_atomic_add
 114 .align  4
 115 .OPENSSL_atomic_add:
 116 Ladd:   lwarx   r5,0,r3
 117         add     r0,r4,r5
 118         stwcx.  r0,0,r3
 119         bne-    Ladd
 120         $SIGNX  r3,r0
 121         blr
 122         .long   0
 123         .byte   0,12,0x14,0,0,0,2,0
 124         .long   0
 125 .size   .OPENSSL_atomic_add,.-.OPENSSL_atomic_add
 126
 127 .globl  .OPENSSL_rdtsc
 128 .align  4
 129 .OPENSSL_rdtsc:
 130 ___
 131 $code.=<<___    if ($flavour =~ /64/);
 132         mftb    r3
 133 ___
 134 $code.=<<___    if ($flavour !~ /64/);
 135 Loop_rdtsc:
 136         mftbu   r5
 137         mftb    r3
 138         mftbu   r4
 139         cmplw   r4,r5
 140         bne     Loop_rdtsc
 141 ___
 142 $code.=<<___;
 143         blr
 144         .long   0
 145         .byte   0,12,0x14,0,0,0,0,0
 146 .size   .OPENSSL_rdtsc,.-.OPENSSL_rdtsc
 147
 148 .globl  .OPENSSL_cleanse
 149 .align  4
 150 .OPENSSL_cleanse:
 151         $CMPLI  r4,7
 152         li      r0,0
 153         bge     Lot
 154         $CMPLI  r4,0
 155         beqlr-
 156 Little: mtctr   r4
 157         stb     r0,0(r3)
 158         addi    r3,r3,1
 159         bdnz    \$-8
 160         blr
 161 Lot:    andi.   r5,r3,3
 162         beq     Laligned
 163         stb     r0,0(r3)
 164         subi    r4,r4,1
 165         addi    r3,r3,1
 166         b       Lot
 167 Laligned:
 168         $SHRLI  r5,r4,2
 169         mtctr   r5
 170         stw     r0,0(r3)
 171         addi    r3,r3,4
 172         bdnz    \$-8
 173         andi.   r4,r4,3
 174         bne     Little
 175         blr
 176         .long   0
 177         .byte   0,12,0x14,0,0,0,2,0
 178         .long   0
 179 .size   .OPENSSL_cleanse,.-.OPENSSL_cleanse
 180 ___
 181 {
 182 my ($out,$cnt,$max)=("r3","r4","r5");
 183 my ($tick,$lasttick)=("r6","r7");
 184 my ($diff,$lastdiff)=("r8","r9");
 185
 186 $code.=<<___;
 187 .globl  .OPENSSL_instrument_bus
 188 .align  4
 189 .OPENSSL_instrument_bus:
 190         mtctr   $cnt
 191
 192         mftb    $lasttick               # collect 1st tick
 193         li      $diff,0
 194
 195         dcbf    0,$out                  # flush cache line
 196         lwarx   $tick,0,$out            # load and lock
 197         add     $tick,$tick,$diff
 198         stwcx.  $tick,0,$out
 199         stwx    $tick,0,$out
 200
 201 Loop:   mftb    $tick
 202         sub     $diff,$tick,$lasttick
 203         mr      $lasttick,$tick
 204         dcbf    0,$out                  # flush cache line
 205         lwarx   $tick,0,$out            # load and lock
 206         add     $tick,$tick,$diff
 207         stwcx.  $tick,0,$out
 208         stwx    $tick,0,$out
 209         addi    $out,$out,4             # ++$out
 210         bdnz    Loop
 211
 212         mr      r3,$cnt
 213         blr
 214         .long   0
 215         .byte   0,12,0x14,0,0,0,2,0
 216         .long   0
 217 .size   .OPENSSL_instrument_bus,.-.OPENSSL_instrument_bus
 218
 219 .globl  .OPENSSL_instrument_bus2
 220 .align  4
 221 .OPENSSL_instrument_bus2:
 222         mr      r0,$cnt
 223         slwi    $cnt,$cnt,2
 224
 225         mftb    $lasttick               # collect 1st tick
 226         li      $diff,0
 227
 228         dcbf    0,$out                  # flush cache line
 229         lwarx   $tick,0,$out            # load and lock
 230         add     $tick,$tick,$diff
 231         stwcx.  $tick,0,$out
 232         stwx    $tick,0,$out
 233
 234         mftb    $tick                   # collect 1st diff
 235         sub     $diff,$tick,$lasttick
 236         mr      $lasttick,$tick
 237         mr      $lastdiff,$diff
 238 Loop2:
 239         dcbf    0,$out                  # flush cache line
 240         lwarx   $tick,0,$out            # load and lock
 241         add     $tick,$tick,$diff
 242         stwcx.  $tick,0,$out
 243         stwx    $tick,0,$out
 244
 245         addic.  $max,$max,-1
 246         beq     Ldone2
 247
 248         mftb    $tick
 249         sub     $diff,$tick,$lasttick
 250         mr      $lasttick,$tick
 251         cmplw   7,$diff,$lastdiff
 252         mr      $lastdiff,$diff
 253
 254         mfcr    $tick                   # pull cr
 255         not     $tick,$tick             # flip bits
 256         rlwinm  $tick,$tick,1,29,29     # isolate flipped eq bit and scale
 257
 258         sub.    $cnt,$cnt,$tick         # conditional --$cnt
 259         add     $out,$out,$tick         # conditional ++$out
 260         bne     Loop2
 261
 262 Ldone2:
 263         srwi    $cnt,$cnt,2
 264         sub     r3,r0,$cnt
 265         blr
 266         .long   0
 267         .byte   0,12,0x14,0,0,0,3,0
 268         .long   0
 269 .size   .OPENSSL_instrument_bus2,.-.OPENSSL_instrument_bus2
 270 ___
 271 }
 272
 273 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 274 print $code;
 275 close STDOUT;