| 1 | # -*- perl -*- |
| 2 | |
| 3 | package Midas::TSB; |
| 4 | use strict; |
| 5 | |
| 6 | use TRELoad 'BitFieldTie'; |
| 7 | use Midas::Command; |
| 8 | use Midas::Error; |
| 9 | use Midas::Globals; |
| 10 | use Midas::MMU; |
| 11 | |
| 12 | use fields qw( |
| 13 | name |
| 14 | config_register |
| 15 | |
| 16 | base |
| 17 | sizebits |
| 18 | is_split |
| 19 | numentries |
| 20 | page_size |
| 21 | |
| 22 | tsblinkname |
| 23 | tsblinkobj |
| 24 | force_ctx_zero |
| 25 | ttefmt |
| 26 | way |
| 27 | |
| 28 | srcline |
| 29 | srcfile |
| 30 | srclinestop |
| 31 | srcfilestop |
| 32 | |
| 33 | touched |
| 34 | length |
| 35 | ); |
| 36 | |
| 37 | ############################################################################### |
| 38 | |
| 39 | sub new { |
| 40 | my $this = shift; |
| 41 | my %args = @_; |
| 42 | |
| 43 | unless (ref $this) { |
| 44 | $this = fields::new($this); |
| 45 | } |
| 46 | |
| 47 | $this->{touched} = 0; |
| 48 | $this->{force_ctx_zero} = undef; |
| 49 | $this->{page_size} = undef; |
| 50 | $this->{way} = undef; |
| 51 | |
| 52 | foreach my $key (keys %args) { |
| 53 | $this->{$key} = $args{$key}; |
| 54 | } |
| 55 | |
| 56 | return $this; |
| 57 | } |
| 58 | |
| 59 | ############################################################################### |
| 60 | |
| 61 | sub new_from_line { |
| 62 | my $class = shift; |
| 63 | my $startline = shift; |
| 64 | my $fh = shift; |
| 65 | my $srcfile = shift; |
| 66 | my $srcline = shift; |
| 67 | my $mmu = shift; |
| 68 | |
| 69 | my $srcfile_start = $srcfile; |
| 70 | my $srcline_start = $srcline; |
| 71 | |
| 72 | local ($_); |
| 73 | $_ = $startline; |
| 74 | |
| 75 | |
| 76 | fatal "Badly formatted TSB line=$srcline, file=$srcfile:\n$_", M_TSBSYNTAX |
| 77 | unless /^\s*MIDAS_TSB\s*(\S+)\s*((0[xX])?([\da-fA-F]+))\s*(.*)\s*$/; |
| 78 | |
| 79 | my $tsbname = lc $1; |
| 80 | my $register = $2; |
| 81 | my $rest = $5; |
| 82 | |
| 83 | my $reg_bf = string2bf($register, 64); |
| 84 | fatal "TSB config register '$register' is not a number at file=$srcfile, line=$srcline\n", M_NOTNUM unless defined $reg_bf; |
| 85 | |
| 86 | |
| 87 | my $force_ctx_zero = undef; |
| 88 | my $page_size = undef; |
| 89 | my $ttefmt = undef; |
| 90 | my $way = undef; |
| 91 | my $tsblinkname; |
| 92 | if($rest =~ s/force_ctx_zero//i) { |
| 93 | $force_ctx_zero = 1; |
| 94 | } |
| 95 | if($rest =~ s/link\s*=\s*(\S+)//i) { |
| 96 | $tsblinkname = lc $1; |
| 97 | } |
| 98 | if($rest =~ s/page_size\s*=\s*(\d+)//i) { |
| 99 | $page_size = $1; |
| 100 | } |
| 101 | if($rest =~ s/way\s*=\s*(\d+)//i) { |
| 102 | $way = $1; |
| 103 | } |
| 104 | if($rest =~ s/ttefmt\s*=(\S+)//i) { |
| 105 | $ttefmt = lc $1; |
| 106 | if($ttefmt ne 'sun4u' and $ttefmt ne 'sun4v') { |
| 107 | fatal "Illegal ttefmt '$1' on TSB line line=$srcline, file=$srcfile.\n", |
| 108 | M_TSBSYNTAX; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | my $this = $class->new |
| 113 | ( |
| 114 | name => $tsbname, |
| 115 | tsblinkname => $tsblinkname, |
| 116 | config_register => $reg_bf, |
| 117 | srcfile => $srcfile_start, |
| 118 | srcline => $srcline_start, |
| 119 | srcfilestop => $srcfile, |
| 120 | srclinestop => $srcline, |
| 121 | ); |
| 122 | |
| 123 | |
| 124 | $this->config_from_register($mmu); |
| 125 | |
| 126 | $this->{force_ctx_zero} = $force_ctx_zero if defined $force_ctx_zero; |
| 127 | $this->{page_size} = $page_size if defined $page_size; |
| 128 | $this->{ttefmt} = $ttefmt if defined $ttefmt; |
| 129 | $this->{way} = hex($way) if defined $way; |
| 130 | |
| 131 | if($this->{is_split} and not defined $this->{way}) { |
| 132 | fatal "TSB '$tsbname' is split but does not\n". |
| 133 | " define way!\n" . |
| 134 | " line=$srcline, file=$srcfile.\n", M_TSBSYNTAX; |
| 135 | } |
| 136 | |
| 137 | if(defined $this->{way} and not ($this->{way} == 0 or $this->{way} == 1)) { |
| 138 | fatal "TSB '$tsbname' defines way that isn't\n". |
| 139 | " zero or one!\n". |
| 140 | " line=$srcline, file=$srcfile.\n", M_TSBSYNTAX; |
| 141 | } |
| 142 | |
| 143 | if($this->{is_split} and $this->{way} == 1) { |
| 144 | my $newBase = BitFieldTie->new($PASIZE, $this->{base}); |
| 145 | my $offset = $this->{numentries} * 16; # 16 bytes per entry |
| 146 | $newBase->add($offset); |
| 147 | $this->{base} = $newBase; |
| 148 | } |
| 149 | |
| 150 | |
| 151 | return $this; |
| 152 | |
| 153 | } |
| 154 | |
| 155 | ############################################################################### |
| 156 | |
| 157 | sub config_from_register { |
| 158 | my $this = shift; |
| 159 | my $mmu = shift; |
| 160 | |
| 161 | my $base = BitFieldTie->new($PASIZE, $this->{config_register}); |
| 162 | $base->store(12, 0, 0); # zero out bits 12:0; |
| 163 | |
| 164 | $this->{base} = $base; |
| 165 | $this->{sizebits} = $this->{config_register}->extract(3,0); |
| 166 | $this->{is_split} = $this->{config_register}->extract(12); |
| 167 | $this->{numentries} = 512 * (1 << $this->{sizebits}); |
| 168 | |
| 169 | my $base_lo = 13 + $this->{sizebits}; |
| 170 | if($base_lo > 13) { |
| 171 | my $overlap = $base->extract($base_lo, 13); |
| 172 | |
| 173 | if($overlap) { |
| 174 | if($CONFIG{allow_misaligned_tsb_base}) { |
| 175 | $base->store($base_lo, 13, 0); |
| 176 | } else { |
| 177 | fatal "TSB '$this->{name}' has base $base, which\n". |
| 178 | " is misaligned for size=$this->{sizebits}\n" . |
| 179 | " Illegal unless -allow_misalgined_tsb_base is defined.\n" . |
| 180 | " line=$this->{srcline}, file=$this->{srcfile}\n", |
| 181 | M_TSBSYNTAX; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | ############################################################################### |
| 189 | |
| 190 | sub get_ttefmt { |
| 191 | my $this = shift; |
| 192 | |
| 193 | return $this->{ttefmt} if defined $this->{ttefmt}; |
| 194 | return $CONFIG{ttefmt}; |
| 195 | } |
| 196 | |
| 197 | ############################################################################### |
| 198 | |
| 199 | sub touch { |
| 200 | my $this = shift; |
| 201 | $this->{touched} = 1; |
| 202 | |
| 203 | if(defined $this->{tsblinkobj}) { |
| 204 | $this->{tsblinkobj}->touch(); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | ############################################################################### |
| 209 | |
| 210 | sub is_touched { |
| 211 | my $this = shift; |
| 212 | return $this->{touched} || $CONFIG{gen_all_tsbs}; |
| 213 | } |
| 214 | |
| 215 | ############################################################################### |
| 216 | |
| 217 | sub is_force_ctx_zero { |
| 218 | my $this = shift; |
| 219 | return $this->{force_ctx_zero}; |
| 220 | } |
| 221 | |
| 222 | ############################################################################### |
| 223 | |
| 224 | sub get_tsblinkname { |
| 225 | my $this = shift; |
| 226 | return $this->{tsblinkname}; |
| 227 | } |
| 228 | |
| 229 | ############################################################################### |
| 230 | |
| 231 | sub set_tsblinkobj { |
| 232 | my $this = shift; |
| 233 | my $obj = shift; |
| 234 | $this->{tsblinkobj} = $obj; |
| 235 | } |
| 236 | |
| 237 | ############################################################################### |
| 238 | |
| 239 | sub page_size { |
| 240 | my $this = shift; |
| 241 | return $this->{page_size}; |
| 242 | } |
| 243 | |
| 244 | ############################################################################### |
| 245 | |
| 246 | sub write_to_goldfinger_file { |
| 247 | my $this = shift; |
| 248 | my $ofh = shift; |
| 249 | my $indent = shift; |
| 250 | |
| 251 | $indent = '' unless defined $indent; |
| 252 | |
| 253 | print $ofh "${indent}TSB $this->{name}\n"; |
| 254 | print $ofh "${indent} src_file = \"$this->{srcfile}\";\n"; |
| 255 | print $ofh "${indent} src_line = $this->{srcline};\n"; |
| 256 | print $ofh "${indent} start_addr = 0x$this->{base};\n"; |
| 257 | print $ofh "${indent} size_bits = $this->{sizebits};\n"; |
| 258 | print $ofh "${indent} split = $this->{is_split};\n"; |
| 259 | print $ofh "${indent} num_entries = $this->{numentries};\n"; |
| 260 | print $ofh "${indent} link_area = $this->{tsblinkname};\n" |
| 261 | if defined $this->{tsblinkname}; |
| 262 | |
| 263 | print $ofh "${indent}END TSB\n"; |
| 264 | print $ofh "\n"; |
| 265 | } |
| 266 | |
| 267 | ############################################################################### |
| 268 | |
| 269 | |
| 270 | ############################################################################### |
| 271 | ############################################################################### |
| 272 | |
| 273 | package Midas::TSBLink; |
| 274 | use strict; |
| 275 | |
| 276 | use TRELoad 'BitFieldTie'; |
| 277 | use Midas::Command; |
| 278 | use Midas::Error; |
| 279 | use Midas::Globals; |
| 280 | |
| 281 | use fields qw( |
| 282 | name |
| 283 | |
| 284 | base |
| 285 | touched |
| 286 | length |
| 287 | |
| 288 | srcline |
| 289 | srcfile |
| 290 | srclinestop |
| 291 | srcfilestop |
| 292 | |
| 293 | ); |
| 294 | |
| 295 | ############################################################################### |
| 296 | |
| 297 | sub new { |
| 298 | my $this = shift; |
| 299 | my %args = @_; |
| 300 | |
| 301 | unless (ref $this) { |
| 302 | $this = fields::new($this); |
| 303 | } |
| 304 | |
| 305 | $this->{touched} = 0; |
| 306 | |
| 307 | foreach my $key (keys %args) { |
| 308 | $this->{$key} = $args{$key}; |
| 309 | } |
| 310 | |
| 311 | return $this; |
| 312 | } |
| 313 | |
| 314 | ############################################################################### |
| 315 | |
| 316 | sub new_from_line { |
| 317 | my $class = shift; |
| 318 | my $startline = shift; |
| 319 | my $fh = shift; |
| 320 | my $srcfile = shift; |
| 321 | my $srcline = shift; |
| 322 | my $mmu = shift; |
| 323 | |
| 324 | my $srcfile_start = $srcfile; |
| 325 | my $srcline_start = $srcline; |
| 326 | |
| 327 | local ($_); |
| 328 | $_ = $startline; |
| 329 | |
| 330 | |
| 331 | while($_ =~ /\\$/) { |
| 332 | $_ =~ s/\\\n$/ /; |
| 333 | $_ .= <$fh>; |
| 334 | $srcline++; |
| 335 | } |
| 336 | |
| 337 | |
| 338 | fatal "Badly formatted TSB_LINK line=$srcline, file=$srcfile:\n$_", |
| 339 | M_TSBSYNTAX |
| 340 | unless /^\s*MIDAS_TSB_LINK\s*(\S+)\s*((0[xX])?([\da-fA-F]+))\s*$/; |
| 341 | |
| 342 | my $tsblinkname = lc $1; |
| 343 | my $addr = $2; |
| 344 | |
| 345 | my $addr_bf = string2bf($addr, $PASIZE); |
| 346 | fatal "TSB_LINK addr '$addr' is not a number at ". |
| 347 | "file=$srcfile, line=$srcline\n", M_NOTNUM unless defined $addr_bf; |
| 348 | |
| 349 | my $this = Midas::TSBLink->new |
| 350 | ( |
| 351 | name => $tsblinkname, |
| 352 | base => $addr_bf, |
| 353 | srcfile => $srcfile_start, |
| 354 | srcline => $srcline_start, |
| 355 | srcfilestop => $srcfile, |
| 356 | srclinestop => $srcline, |
| 357 | ); |
| 358 | |
| 359 | |
| 360 | return $this; |
| 361 | } |
| 362 | |
| 363 | ############################################################################### |
| 364 | |
| 365 | sub touch { |
| 366 | my $this = shift; |
| 367 | $this->{touched} = 1; |
| 368 | } |
| 369 | |
| 370 | ############################################################################### |
| 371 | |
| 372 | sub is_touched { |
| 373 | my $this = shift; |
| 374 | return $this->{touched} || $CONFIG{gen_all_tsbs}; |
| 375 | } |
| 376 | |
| 377 | ############################################################################### |
| 378 | |
| 379 | sub set_len { |
| 380 | my $this = shift; |
| 381 | my $length_bf = shift; |
| 382 | |
| 383 | $this->{length} = $length_bf; |
| 384 | } |
| 385 | |
| 386 | ############################################################################### |
| 387 | |
| 388 | sub write_to_goldfinger_file { |
| 389 | my $this = shift; |
| 390 | my $ofh = shift; |
| 391 | my $indent = shift; |
| 392 | |
| 393 | $indent = '' unless defined $indent; |
| 394 | |
| 395 | print $ofh "${indent}TSB_LINK $this->{name}\n"; |
| 396 | print $ofh "${indent} src_file = \"$this->{srcfile}\";\n"; |
| 397 | print $ofh "${indent} src_line = $this->{srcline};\n"; |
| 398 | print $ofh "${indent} start_addr = 0x$this->{base};\n"; |
| 399 | print $ofh "${indent}END TSB_LINK\n"; |
| 400 | print $ofh "\n"; |
| 401 | } |
| 402 | |
| 403 | ############################################################################### |
| 404 | |
| 405 | ############################################################################### |
| 406 | 1; |