| 1 | # ========== Copyright Header Begin ========================================== |
| 2 | # |
| 3 | # OpenSPARC T2 Processor File: TTEFormat.pm |
| 4 | # Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | # 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | # |
| 7 | # * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | # |
| 9 | # This program is free software; you can redistribute it and/or modify |
| 10 | # it under the terms of the GNU General Public License as published by |
| 11 | # the Free Software Foundation; version 2 of the License. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program; if not, write to the Free Software |
| 20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | # |
| 22 | # For the avoidance of doubt, and except that if any non-GPL license |
| 23 | # choice is available it will apply instead, Sun elects to use only |
| 24 | # the General Public License version 2 (GPLv2) at this time for any |
| 25 | # software where a choice of GPL license versions is made |
| 26 | # available with the language indicating that GPLv2 or any later version |
| 27 | # may be used, or where a choice of which version of the GPL is applied is |
| 28 | # otherwise unspecified. |
| 29 | # |
| 30 | # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | # CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | # have any questions. |
| 33 | # |
| 34 | # ========== Copyright Header End ============================================ |
| 35 | # -*- perl -*- |
| 36 | |
| 37 | package Midas::MMU::TTEFormat; |
| 38 | use strict; |
| 39 | |
| 40 | use TRELoad 'BitFieldTie'; |
| 41 | use Tie::IxHash; |
| 42 | |
| 43 | require Exporter; |
| 44 | |
| 45 | our @ISA = qw(Exporter); |
| 46 | our @EXPORT = qw( |
| 47 | get_tte_field_hash |
| 48 | get_union_tte_field_hash |
| 49 | tte_hash_to_tsb_data |
| 50 | tte_hash_to_tsb_tag |
| 51 | parse_tsb_data |
| 52 | is_good_format_for_mmu |
| 53 | |
| 54 | %TSB_TAG_FORMAT |
| 55 | %TSB_DATA_FORMAT |
| 56 | ); |
| 57 | |
| 58 | our %TSB_TAG_FORMAT; |
| 59 | our %TSB_DATA_FORMAT; |
| 60 | |
| 61 | # BEGIN block, because these need to be defined when other modules |
| 62 | # call get_union_tte_field hash inside a 'use fields' clause. |
| 63 | BEGIN { |
| 64 | |
| 65 | our %TSB_TAG_FORMAT = |
| 66 | ( |
| 67 | ultra2 => |
| 68 | { |
| 69 | tagtarget => |
| 70 | { |
| 71 | G => { hi=>63, lo=>63 }, |
| 72 | CONTEXT => { hi=>60, lo=>48 }, |
| 73 | VA => { hi=>41, lo=> 0, src=>'63:22' }, |
| 74 | }, |
| 75 | tagaccess => |
| 76 | { |
| 77 | VA => { hi=>63, lo=>13, src=>'63:13' }, |
| 78 | CONTEXT => { hi=>12, lo=> 0 }, |
| 79 | }, |
| 80 | }, |
| 81 | |
| 82 | niagara => |
| 83 | { |
| 84 | tagtarget => |
| 85 | { |
| 86 | CONTEXT => { hi=>60, lo=>48 }, |
| 87 | VA => { hi=>41, lo=> 0, src=>'63:22' }, |
| 88 | }, |
| 89 | tagaccess => |
| 90 | { |
| 91 | VA => { hi=>63, lo=>13, src=>'63:13' }, |
| 92 | CONTEXT => { hi=>12, lo=> 0 }, |
| 93 | }, |
| 94 | }, |
| 95 | |
| 96 | niagara2 => |
| 97 | { |
| 98 | tagtarget => |
| 99 | { |
| 100 | CONTEXT => { hi=>60, lo=>48 }, |
| 101 | VA => { hi=>41, lo=> 0, src=>'63:22' }, |
| 102 | }, |
| 103 | tagaccess => |
| 104 | { |
| 105 | VA => { hi=>63, lo=>13, src=>'63:13' }, |
| 106 | CONTEXT => { hi=>12, lo=> 0 }, |
| 107 | }, |
| 108 | }, |
| 109 | X => |
| 110 | { |
| 111 | tagtarget => |
| 112 | { |
| 113 | CONTEXT => { hi=>60, lo=>48 }, |
| 114 | VA => { hi=>41, lo=> 0, src=>'63:22' }, |
| 115 | }, |
| 116 | tagaccess => |
| 117 | { |
| 118 | VA => { hi=>63, lo=>13, src=>'63:13' }, |
| 119 | CONTEXT => { hi=>12, lo=> 0 }, |
| 120 | }, |
| 121 | }, |
| 122 | |
| 123 | |
| 124 | ); |
| 125 | |
| 126 | tie my %tsb_data_ultra2_sun4u, 'Tie::IxHash'; |
| 127 | tie my %tsb_data_niagara_sun4u, 'Tie::IxHash'; |
| 128 | tie my %tsb_data_niagara_sun4v, 'Tie::IxHash'; |
| 129 | tie my %tsb_data_niagara2_sun4u, 'Tie::IxHash'; |
| 130 | tie my %tsb_data_niagara2_sun4v, 'Tie::IxHash'; |
| 131 | tie my %tsb_data_X_sun4v, 'Tie::IxHash'; |
| 132 | |
| 133 | %tsb_data_ultra2_sun4u = |
| 134 | ( |
| 135 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1" }, |
| 136 | SIZE => { hi=>62, lo=>61, descr => "Encoded page size"}, |
| 137 | NFO => { hi=>60, lo=>60, descr => "Non-Faulting Only" }, |
| 138 | IE => { hi=>59, lo=>59, descr => "Invert Endianness" }, |
| 139 | SOFT2=> { hi=>58, lo=>50, descr => "Software usable"}, |
| 140 | DIAG => { hi=>49, lo=>41, descr => "Diagnostic"}, |
| 141 | PA => { hi=>40, lo=>13, src=>'40:13', descr => "Physical Address"}, |
| 142 | SOFT => { hi=>12, lo=> 7, descr => "Software usable" }, |
| 143 | L => { hi=> 6, lo=> 6, descr => "Lock"}, |
| 144 | CP => { hi=> 5, lo=> 5, |
| 145 | descr => "Cacheable in phys. indexed cache"}, |
| 146 | CV => { hi=> 4, lo=> 4, |
| 147 | descr => "Cacheable in virt. indexed cache"}, |
| 148 | E => { hi=> 3, lo=> 3, descr => "Side-effect"}, |
| 149 | P => { hi=> 2, lo=> 2, descr => "Priviliged"}, |
| 150 | W => { hi=> 1, lo=> 1, descr => "Writeable"}, |
| 151 | G => { hi=> 0, lo=> 0, descr => "Global" }, |
| 152 | ); |
| 153 | |
| 154 | %tsb_data_niagara_sun4u = |
| 155 | ( |
| 156 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1"}, |
| 157 | SZL => { hi=>62, lo=>61, name=>'SIZE', src=>'1:0', |
| 158 | descr => "Low bits of encoded page size" }, |
| 159 | NFO => { hi=>60, lo=>60, descr => "Non-Faulting Only"}, |
| 160 | IE => { hi=>59, lo=>59, descr => "Invert Endianness"}, |
| 161 | SOFT2=> { hi=>58, lo=>49, descr => "Software usable"}, |
| 162 | SZH => { hi=>48, lo=>48, name=>'SIZE', src=>'2', |
| 163 | descr => "High bit of encoded page size" }, |
| 164 | DIAG => { hi=>47, lo=>40, descr => "Diagnostic"}, |
| 165 | PA => { hi=>39, lo=>13, src=>'39:13', descr => "Physical Address"}, |
| 166 | SOFT => { hi=>12, lo=> 8, descr => "Software usable"}, |
| 167 | RSVD0=> { hi=> 7, lo=> 7, descr => "Reserved"}, |
| 168 | L => { hi=> 6, lo=> 6, descr => "Lock" }, |
| 169 | CP => { hi=> 5, lo=> 5, |
| 170 | descr => "Cacheable in phys. indexed cache"}, |
| 171 | CV => { hi=> 4, lo=> 4, |
| 172 | descr => "Cacheable in virt. indexed cache"}, |
| 173 | E => { hi=> 3, lo=> 3, descr => "Side-effect"}, |
| 174 | P => { hi=> 2, lo=> 2, descr => "Priviliged" }, |
| 175 | W => { hi=> 1, lo=> 1, descr => "Writeable" }, |
| 176 | RSVD1=> { hi=> 0, lo=> 0, aliases=>['G'], descr => "Reserved" }, |
| 177 | ); |
| 178 | |
| 179 | %tsb_data_niagara_sun4v = |
| 180 | ( |
| 181 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1"}, |
| 182 | NFO => { hi=>62, lo=>62, descr => "Non-Faulting Only" }, |
| 183 | L => { hi=>61, lo=>61, descr => "Lock" }, |
| 184 | SOFT => { hi=>60, lo=>40, descr => "Software usable"}, |
| 185 | PA => { hi=>39, lo=>13, src=>'39:13', descr => "Physical Address"}, |
| 186 | IE => { hi=>12, lo=>12, descr => "Invert Endianness"}, |
| 187 | E => { hi=>11, lo=>11, descr => "Side-effect"}, |
| 188 | CP => { hi=>10, lo=>10, |
| 189 | descr => "Cacheable in phys. indexed cache"}, |
| 190 | CV => { hi=> 9, lo=> 9, |
| 191 | descr => "Cacheable in virt. indexed cache"}, |
| 192 | P => { hi=> 8, lo=> 8, descr => "Priviliged" }, |
| 193 | RSVD0=> { hi=> 7, lo=> 7, descr => "Reserved" }, |
| 194 | W => { hi=> 6, lo=> 6, descr => "Writeable" }, |
| 195 | SW1 => { hi=> 5, lo=> 5, descr => "Software usable" }, |
| 196 | SW0 => { hi=> 4, lo=> 4, descr => "Software usable" }, |
| 197 | RSVD1=> { hi=> 3, lo=> 3, descr => "Reserved" }, |
| 198 | SIZE => { hi=> 2, lo=> 0, descr => "Encoded page size" }, |
| 199 | ); |
| 200 | |
| 201 | %tsb_data_niagara2_sun4u = |
| 202 | ( |
| 203 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1"}, |
| 204 | SZL => { hi=>62, lo=>61, name=>'SIZE', src=>'1:0', |
| 205 | descr => "Low bits of encoded page size" }, |
| 206 | NFO => { hi=>60, lo=>60, descr => "Non-Faulting Only"}, |
| 207 | IE => { hi=>59, lo=>59, descr => "Invert Endianness"}, |
| 208 | SOFT2=> { hi=>58, lo=>49, descr => "Software usable"}, |
| 209 | SZH => { hi=>48, lo=>48, name=>'SIZE', src=>'2', |
| 210 | descr => "High bit of encoded page size" }, |
| 211 | DIAG => { hi=>47, lo=>40, descr => "Diagnostic" }, |
| 212 | PA => { hi=>39, lo=>13, src=>'39:13', descr => "Physical Address"}, |
| 213 | SOFT => { hi=>12, lo=> 8, descr => "Software usable"}, |
| 214 | EP => { hi=> 7, lo=> 7, aliases=>['X'], |
| 215 | descr => "Executable (also TTE_X)"}, |
| 216 | L => { hi=> 6, lo=> 6, descr => "Lock" }, |
| 217 | CP => { hi=> 5, lo=> 5, |
| 218 | descr => "Cacheable in phys. indexed cache"}, |
| 219 | CV => { hi=> 4, lo=> 4, |
| 220 | descr => "Cacheable in virt. indexed cache"}, |
| 221 | E => { hi=> 3, lo=> 3, descr => "Side-effect"}, |
| 222 | P => { hi=> 2, lo=> 2, descr => "Priviliged" }, |
| 223 | W => { hi=> 1, lo=> 1, descr => "Writeable" }, |
| 224 | RSVD1=> { hi=> 0, lo=> 0, aliases=>['G'], descr => "Reserved" }, |
| 225 | ); |
| 226 | |
| 227 | %tsb_data_niagara2_sun4v = |
| 228 | ( |
| 229 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1"}, |
| 230 | NFO => { hi=>62, lo=>62, descr => "Non-Faulting Only" }, |
| 231 | L => { hi=>61, lo=>61, descr => "Lock"}, |
| 232 | SOFT => { hi=>60, lo=>40, descr => "Software usable"}, |
| 233 | PA => { hi=>39, lo=>13, src=>'39:13', descr => "Physical Address"}, |
| 234 | IE => { hi=>12, lo=>12, descr => "Invert Endianness"}, |
| 235 | E => { hi=>11, lo=>11, descr => "Side-effect"}, |
| 236 | CP => { hi=>10, lo=>10, |
| 237 | descr => "Cacheable in phys. indexed cache"}, |
| 238 | CV => { hi=> 9, lo=> 9, |
| 239 | descr => "Cacheable in virt. indexed cache"}, |
| 240 | P => { hi=> 8, lo=> 8, descr => "Priviliged"}, |
| 241 | EP => { hi=> 7, lo=> 7, aliases=>['X'], |
| 242 | descr => "Executable (also TTE_X)"}, |
| 243 | W => { hi=> 6, lo=> 6, descr => "Writeable" }, |
| 244 | SW1 => { hi=> 5, lo=> 5, descr => "Software usable"}, |
| 245 | SW0 => { hi=> 4, lo=> 4, descr => "Software usable"}, |
| 246 | RSVD1=> { hi=> 3, lo=> 3, descr => "Reserved" }, |
| 247 | SIZE => { hi=> 2, lo=> 0, descr => "Encoded page size"}, |
| 248 | ); |
| 249 | |
| 250 | %tsb_data_X_sun4v = |
| 251 | ( |
| 252 | V => { hi=>63, lo=>63, default => 1, descr => "Valid bit, default=1"}, |
| 253 | NFO => { hi=>62, lo=>62, descr => "Non-Faulting Only" }, |
| 254 | SW1 => { hi=>61, lo=>47, descr => "Software usable"}, |
| 255 | PA => { hi=>46, lo=>13, src=>'46:13', descr => "Physical Address"}, |
| 256 | IE => { hi=>12, lo=>12, descr => "Invert Endianness" }, |
| 257 | E => { hi=>11, lo=>11, descr => "Side-effect"}, |
| 258 | CP => { hi=>10, lo=>10, |
| 259 | descr => "Cacheable in phys. indexed cache"}, |
| 260 | CV => { hi=> 9, lo=> 9, |
| 261 | descr => "Cacheable in virt. indexed cache"}, |
| 262 | P => { hi=> 8, lo=> 8, descr => "Priviliged" }, |
| 263 | X => { hi=> 7, lo=> 7, aliases=>['EP'], |
| 264 | descr => "Executable (also TTE_EP)" }, |
| 265 | W => { hi=> 6, lo=> 6, descr => "Writeable" }, |
| 266 | R => { hi=> 5, lo=> 5, descr => "Readable" }, |
| 267 | SW0 => { hi=> 4, lo=> 4, descr => "Software usable"}, |
| 268 | RSVD0=> { hi=> 3, lo=> 3, descr => "Reserved"}, |
| 269 | SIZE => { hi=> 2, lo=> 0, descr => "Encoded page size" }, |
| 270 | ); |
| 271 | |
| 272 | our %TSB_DATA_FORMAT = |
| 273 | ( |
| 274 | |
| 275 | ultra2 => { |
| 276 | sun4u => \%tsb_data_ultra2_sun4u, |
| 277 | }, |
| 278 | niagara => { |
| 279 | sun4u => \%tsb_data_niagara_sun4u, |
| 280 | sun4v => \%tsb_data_niagara_sun4v, |
| 281 | }, |
| 282 | |
| 283 | niagara2 => { |
| 284 | sun4u => \%tsb_data_niagara2_sun4u, |
| 285 | sun4v => \%tsb_data_niagara2_sun4v, |
| 286 | }, |
| 287 | |
| 288 | |
| 289 | X => { |
| 290 | sun4v => \%tsb_data_X_sun4v, |
| 291 | }, |
| 292 | |
| 293 | ); |
| 294 | } |
| 295 | |
| 296 | ############################################################################## |
| 297 | |
| 298 | sub get_tte_field_hash { |
| 299 | my $mmu_type = shift; |
| 300 | my $ttefmt = shift; |
| 301 | my $tsbtagfmt = shift; |
| 302 | |
| 303 | my %fields; |
| 304 | foreach my $field (keys %{$TSB_DATA_FORMAT{$mmu_type}{$ttefmt}}) { |
| 305 | my $descr = $TSB_DATA_FORMAT{$mmu_type}{$ttefmt}{$field}; |
| 306 | my $size = $descr->{hi} - $descr->{lo} + 1; |
| 307 | my $name = (exists $descr->{name}) ? $descr->{name} : $field; |
| 308 | |
| 309 | my @names = ($name); |
| 310 | push @names, @{ $descr->{aliases} } if exists $descr->{aliases}; |
| 311 | |
| 312 | foreach my $n (@names) { |
| 313 | my $tte_n = lc('tte_' . $n); |
| 314 | |
| 315 | $fields{$tte_n} = 0 unless exists $fields{$tte_n}; |
| 316 | $fields{$tte_n} += $size; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | foreach my $field (keys %{$TSB_TAG_FORMAT{$mmu_type}{$tsbtagfmt}}) { |
| 321 | my $descr = $TSB_TAG_FORMAT{$mmu_type}{$tsbtagfmt}{$field}; |
| 322 | my $size = $descr->{hi} - $descr->{lo} + 1; |
| 323 | my $name = (exists $descr->{name}) ? $descr->{name} : $field; |
| 324 | |
| 325 | my @names = ($name); |
| 326 | push @names, @{ $descr->{aliases} } if exists $descr->{aliases}; |
| 327 | |
| 328 | foreach my $n (@names) { |
| 329 | my $tte_n = lc('tte_' . $n); |
| 330 | |
| 331 | $fields{$tte_n} = 0 unless exists $fields{$tte_n}; |
| 332 | if($tte_n eq 'tte_g') { |
| 333 | $fields{$tte_n} = $size; |
| 334 | } else { |
| 335 | $fields{$tte_n} += $size; |
| 336 | } |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | delete $fields{tte_va} if exists $fields{tte_va}; |
| 341 | delete $fields{tte_ra} if exists $fields{tte_ra}; |
| 342 | delete $fields{tte_pa} if exists $fields{tte_pa}; |
| 343 | |
| 344 | |
| 345 | return \%fields; |
| 346 | } |
| 347 | |
| 348 | ############################################################################## |
| 349 | |
| 350 | sub get_union_tte_field_hash { |
| 351 | my $mmu_type = shift; |
| 352 | |
| 353 | my %fields; |
| 354 | foreach my $ttefmt (keys %{ $TSB_DATA_FORMAT{$mmu_type} }) { |
| 355 | foreach my $tsbtagfmt (keys %{ $TSB_TAG_FORMAT{$mmu_type} } ) { |
| 356 | my $fieldHash = get_tte_field_hash($mmu_type, $ttefmt, $tsbtagfmt); |
| 357 | foreach my $field (keys %$fieldHash) { |
| 358 | $fields{$field} = 0 unless defined $fields{$field}; |
| 359 | $fields{$field} = ($fields{$field} > $fieldHash->{$field}) ? |
| 360 | $fields{$field} : $fieldHash->{$field}; |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | return \%fields; |
| 366 | } |
| 367 | |
| 368 | ############################################################################## |
| 369 | |
| 370 | sub tte_hash_to_tsb_data { |
| 371 | my $mmutype = shift; |
| 372 | my $ttefmt = shift; |
| 373 | my $ttehash = shift; |
| 374 | my $addr = shift; |
| 375 | |
| 376 | $addr = '0' unless defined $addr; |
| 377 | |
| 378 | my $pa = BitFieldTie->new(64, $addr); |
| 379 | my $data = BitFieldTie->new(64, 0); |
| 380 | my $size = (exists $ttehash->{tte_size}) ? |
| 381 | BitFieldTie->new(64, $ttehash->{tte_size}) : undef; |
| 382 | |
| 383 | tie my %data, 'BitFieldTie', $data; |
| 384 | tie my %pa, 'BitFieldTie', $pa; |
| 385 | tie my %size, 'BitFieldTie', $size; |
| 386 | |
| 387 | foreach my $field (keys %{ $TSB_DATA_FORMAT{$mmutype}{$ttefmt} }) { |
| 388 | my $descr = $TSB_DATA_FORMAT{$mmutype}{$ttefmt}{$field}; |
| 389 | my $name = (exists $descr->{name}) ? $descr->{name} : $field; |
| 390 | |
| 391 | my @names = ($name); |
| 392 | push @names, @{ $descr->{aliases} } if exists $descr->{aliases}; |
| 393 | |
| 394 | my $def_value = (defined $descr->{default}) ? $descr->{default} : 0; |
| 395 | my $value; |
| 396 | my $set_already = 0; |
| 397 | if($name eq 'PA' or $name eq 'SIZE') { |
| 398 | my $bits = (exists $descr->{src}) ? $descr->{src} : '31:0'; |
| 399 | if($name eq 'PA') { |
| 400 | if($bits =~ /^(\d+):(\d+)$/) { |
| 401 | my ($hi, $lo) = ($1, $2); |
| 402 | my $dist = $hi - $lo + 1; |
| 403 | if($dist > 32) { |
| 404 | my $mid_hi = $hi-31; |
| 405 | my $mid_lo = $mid_hi-1; |
| 406 | |
| 407 | my $descr_mid_hi = $descr->{hi} - 31; |
| 408 | my $descr_mid_lo = $descr_mid_hi - 1; |
| 409 | |
| 410 | $data{"$descr->{hi}:$descr_mid_hi"} = |
| 411 | $pa{"${hi}:$mid_hi"}; |
| 412 | |
| 413 | $data{"${descr_mid_lo}:$descr->{lo}"} = |
| 414 | $pa{"${mid_lo}:$lo"}; |
| 415 | |
| 416 | $set_already = 1; |
| 417 | } else { |
| 418 | $value = $pa{$bits}; |
| 419 | } |
| 420 | } else { |
| 421 | $value = $pa{$bits}; |
| 422 | } |
| 423 | } elsif($name eq 'SIZE') { |
| 424 | $value = $size{$bits}; |
| 425 | } |
| 426 | } else { |
| 427 | my $found = 0; |
| 428 | foreach my $n (@names) { |
| 429 | my $tte_n = lc('tte_' . $n); |
| 430 | if(exists $ttehash->{$tte_n}) { |
| 431 | $value ||= $ttehash->{$tte_n}; |
| 432 | $found = 1; |
| 433 | } |
| 434 | } |
| 435 | $value = $def_value unless $found; |
| 436 | } |
| 437 | |
| 438 | $data{"$descr->{hi}" . ':' . "$descr->{lo}"} = $value |
| 439 | unless $set_already; |
| 440 | |
| 441 | } |
| 442 | return $data->stringify(); |
| 443 | } |
| 444 | |
| 445 | ############################################################################## |
| 446 | |
| 447 | sub tte_hash_to_tsb_tag { |
| 448 | my $mmutype = shift; |
| 449 | my $tsbtagfmt = shift; |
| 450 | my $ttehash = shift; |
| 451 | my $addr = shift; |
| 452 | my $force_ctx_zero = shift; |
| 453 | |
| 454 | $addr = '0' unless defined $addr; |
| 455 | $force_ctx_zero = 0 unless defined $force_ctx_zero; |
| 456 | |
| 457 | my $va = BitFieldTie->new(64, $addr); |
| 458 | my $tag = BitFieldTie->new(64, 0); |
| 459 | |
| 460 | tie my %tag, 'BitFieldTie', $tag; |
| 461 | tie my %va, 'BitFieldTie', $va; |
| 462 | |
| 463 | foreach my $field (keys %{ $TSB_TAG_FORMAT{$mmutype}{$tsbtagfmt} }) { |
| 464 | my $descr = $TSB_TAG_FORMAT{$mmutype}{$tsbtagfmt}{$field}; |
| 465 | my $name = (exists $descr->{name}) ? $descr->{name} : $field; |
| 466 | |
| 467 | my @names = ($name); |
| 468 | push @names, @{ $descr->{aliases} } if exists $descr->{aliases}; |
| 469 | |
| 470 | my $value = (defined $descr->{default}) ? $descr->{default} : 0; |
| 471 | if( $name eq 'VA') { |
| 472 | my $bits = (exists $descr->{src}) ? $descr->{src} : '31:0'; |
| 473 | |
| 474 | my $hi = $descr->{hi}; |
| 475 | my $lo = $descr->{lo}; |
| 476 | my $dist = ($hi-$lo+1); |
| 477 | if($dist >= 32) { |
| 478 | my $cut = $hi-31; |
| 479 | if($bits =~ /(\d+)\:(\d+)/) { |
| 480 | my ($bitsHi, $bitsLo) = ($1, $2); |
| 481 | my $bitsCut = $bitsHi-31; |
| 482 | $tag{"${hi}:${cut}"} = $va{"${bitsHi}:${bitsCut}"}; |
| 483 | $cut--; $bitsCut--; |
| 484 | $tag{"${cut}:${lo}"} = $va{"${bitsCut}:${bitsLo}"}; |
| 485 | } |
| 486 | } else { |
| 487 | $tag{"${hi}:${lo}"} = $va{$bits}; |
| 488 | } |
| 489 | |
| 490 | |
| 491 | } else { |
| 492 | foreach my $n (@names) { |
| 493 | my $tte_n = lc('tte_' . $n); |
| 494 | if(exists $ttehash->{$tte_n}) { |
| 495 | $value ||= $ttehash->{$tte_n}; |
| 496 | } |
| 497 | if($tte_n eq 'tte_context' and $force_ctx_zero) { |
| 498 | $value = 0; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | $tag{"$descr->{hi}" . ':' . "$descr->{lo}"} = $value; |
| 503 | } |
| 504 | |
| 505 | |
| 506 | } |
| 507 | return $tag->stringify(); |
| 508 | } |
| 509 | |
| 510 | ############################################################################## |
| 511 | |
| 512 | sub parse_tsb_data { |
| 513 | my $mmutype = shift; |
| 514 | my $ttefmt = shift; |
| 515 | my $tte_data = shift; |
| 516 | |
| 517 | tie my %parsed, 'Tie::IxHash'; |
| 518 | |
| 519 | my $data = BitFieldTie->new(64, $tte_data); |
| 520 | tie my %data, 'BitFieldTie', $data; |
| 521 | |
| 522 | my $types = $TSB_DATA_FORMAT{$mmutype}{$ttefmt}; |
| 523 | foreach my $field (sort { $types->{$b}{hi} <=> $types->{$a}{hi}} |
| 524 | keys %$types) |
| 525 | { |
| 526 | my $descr = $types->{$field}; |
| 527 | my $value = $data{"$descr->{hi}" . ':' . "$descr->{lo}"}; |
| 528 | my $name = (exists $descr->{name}) ? $descr->{name} : $field; |
| 529 | |
| 530 | $parsed{$name} = 0 unless defined $parsed{$name}; |
| 531 | if(exists $descr->{src}) { |
| 532 | my $v = BitFieldTie->new(64, 0); |
| 533 | tie my %v, 'BitFieldTie', $v; |
| 534 | $v{$descr->{src}} = $value; |
| 535 | $value = $v->extract(31,0); |
| 536 | } |
| 537 | $parsed{$name} |= $value; |
| 538 | |
| 539 | } |
| 540 | |
| 541 | return \%parsed; |
| 542 | } |
| 543 | |
| 544 | ############################################################################## |
| 545 | |
| 546 | sub is_good_format_for_mmu { |
| 547 | my $mmutype = shift; |
| 548 | my $ttefmt = shift; |
| 549 | return 1 if exists $TSB_DATA_FORMAT{$mmutype}{$ttefmt}; |
| 550 | return; |
| 551 | } |
| 552 | |
| 553 | ############################################################################## |
| 554 | 1; |