| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: tbdata - Table manager data structure functions |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acnamesp.h" |
| 47 | #include "actables.h" |
| 48 | #include "acevents.h" |
| 49 | |
| 50 | #define _COMPONENT ACPI_TABLES |
| 51 | ACPI_MODULE_NAME ("tbdata" ) |
| 52 | |
| 53 | |
| 54 | /******************************************************************************* |
| 55 | * |
| 56 | * FUNCTION: AcpiTbInitTableDescriptor |
| 57 | * |
| 58 | * PARAMETERS: TableDesc - Table descriptor |
| 59 | * Address - Physical address of the table |
| 60 | * Flags - Allocation flags of the table |
| 61 | * Table - Pointer to the table |
| 62 | * |
| 63 | * RETURN: None |
| 64 | * |
| 65 | * DESCRIPTION: Initialize a new table descriptor |
| 66 | * |
| 67 | ******************************************************************************/ |
| 68 | |
| 69 | void |
| 70 | AcpiTbInitTableDescriptor ( |
| 71 | ACPI_TABLE_DESC *TableDesc, |
| 72 | ACPI_PHYSICAL_ADDRESS Address, |
| 73 | UINT8 Flags, |
| 74 | ACPI_TABLE_HEADER *Table) |
| 75 | { |
| 76 | |
| 77 | /* |
| 78 | * Initialize the table descriptor. Set the pointer to NULL, since the |
| 79 | * table is not fully mapped at this time. |
| 80 | */ |
| 81 | memset (TableDesc, 0, sizeof (ACPI_TABLE_DESC)); |
| 82 | TableDesc->Address = Address; |
| 83 | TableDesc->Length = Table->Length; |
| 84 | TableDesc->Flags = Flags; |
| 85 | ACPI_MOVE_32_TO_32 (TableDesc->Signature.Ascii, Table->Signature); |
| 86 | } |
| 87 | |
| 88 | |
| 89 | /******************************************************************************* |
| 90 | * |
| 91 | * FUNCTION: AcpiTbAcquireTable |
| 92 | * |
| 93 | * PARAMETERS: TableDesc - Table descriptor |
| 94 | * TablePtr - Where table is returned |
| 95 | * TableLength - Where table length is returned |
| 96 | * TableFlags - Where table allocation flags are returned |
| 97 | * |
| 98 | * RETURN: Status |
| 99 | * |
| 100 | * DESCRIPTION: Acquire an ACPI table. It can be used for tables not |
| 101 | * maintained in the AcpiGbl_RootTableList. |
| 102 | * |
| 103 | ******************************************************************************/ |
| 104 | |
| 105 | ACPI_STATUS |
| 106 | AcpiTbAcquireTable ( |
| 107 | ACPI_TABLE_DESC *TableDesc, |
| 108 | ACPI_TABLE_HEADER **TablePtr, |
| 109 | UINT32 *TableLength, |
| 110 | UINT8 *TableFlags) |
| 111 | { |
| 112 | ACPI_TABLE_HEADER *Table = NULL; |
| 113 | |
| 114 | |
| 115 | switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) |
| 116 | { |
| 117 | case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: |
| 118 | |
| 119 | Table = AcpiOsMapMemory (TableDesc->Address, TableDesc->Length); |
| 120 | break; |
| 121 | |
| 122 | case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: |
| 123 | case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: |
| 124 | |
| 125 | Table = ACPI_CAST_PTR (ACPI_TABLE_HEADER, |
| 126 | ACPI_PHYSADDR_TO_PTR (TableDesc->Address)); |
| 127 | break; |
| 128 | |
| 129 | default: |
| 130 | |
| 131 | break; |
| 132 | } |
| 133 | |
| 134 | /* Table is not valid yet */ |
| 135 | |
| 136 | if (!Table) |
| 137 | { |
| 138 | return (AE_NO_MEMORY); |
| 139 | } |
| 140 | |
| 141 | /* Fill the return values */ |
| 142 | |
| 143 | *TablePtr = Table; |
| 144 | *TableLength = TableDesc->Length; |
| 145 | *TableFlags = TableDesc->Flags; |
| 146 | return (AE_OK); |
| 147 | } |
| 148 | |
| 149 | |
| 150 | /******************************************************************************* |
| 151 | * |
| 152 | * FUNCTION: AcpiTbReleaseTable |
| 153 | * |
| 154 | * PARAMETERS: Table - Pointer for the table |
| 155 | * TableLength - Length for the table |
| 156 | * TableFlags - Allocation flags for the table |
| 157 | * |
| 158 | * RETURN: None |
| 159 | * |
| 160 | * DESCRIPTION: Release a table. The inverse of AcpiTbAcquireTable(). |
| 161 | * |
| 162 | ******************************************************************************/ |
| 163 | |
| 164 | void |
| 165 | AcpiTbReleaseTable ( |
| 166 | ACPI_TABLE_HEADER *Table, |
| 167 | UINT32 TableLength, |
| 168 | UINT8 TableFlags) |
| 169 | { |
| 170 | |
| 171 | switch (TableFlags & ACPI_TABLE_ORIGIN_MASK) |
| 172 | { |
| 173 | case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: |
| 174 | |
| 175 | AcpiOsUnmapMemory (Table, TableLength); |
| 176 | break; |
| 177 | |
| 178 | case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: |
| 179 | case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: |
| 180 | default: |
| 181 | |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | /******************************************************************************* |
| 188 | * |
| 189 | * FUNCTION: AcpiTbAcquireTempTable |
| 190 | * |
| 191 | * PARAMETERS: TableDesc - Table descriptor to be acquired |
| 192 | * Address - Address of the table |
| 193 | * Flags - Allocation flags of the table |
| 194 | * |
| 195 | * RETURN: Status |
| 196 | * |
| 197 | * DESCRIPTION: This function validates the table header to obtain the length |
| 198 | * of a table and fills the table descriptor to make its state as |
| 199 | * "INSTALLED". Such a table descriptor is only used for verified |
| 200 | * installation. |
| 201 | * |
| 202 | ******************************************************************************/ |
| 203 | |
| 204 | ACPI_STATUS |
| 205 | AcpiTbAcquireTempTable ( |
| 206 | ACPI_TABLE_DESC *TableDesc, |
| 207 | ACPI_PHYSICAL_ADDRESS Address, |
| 208 | UINT8 Flags) |
| 209 | { |
| 210 | ACPI_TABLE_HEADER *; |
| 211 | |
| 212 | |
| 213 | switch (Flags & ACPI_TABLE_ORIGIN_MASK) |
| 214 | { |
| 215 | case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: |
| 216 | |
| 217 | /* Get the length of the full table from the header */ |
| 218 | |
| 219 | TableHeader = AcpiOsMapMemory (Address, sizeof (ACPI_TABLE_HEADER)); |
| 220 | if (!TableHeader) |
| 221 | { |
| 222 | return (AE_NO_MEMORY); |
| 223 | } |
| 224 | |
| 225 | AcpiTbInitTableDescriptor (TableDesc, Address, Flags, TableHeader); |
| 226 | AcpiOsUnmapMemory (TableHeader, sizeof (ACPI_TABLE_HEADER)); |
| 227 | return (AE_OK); |
| 228 | |
| 229 | case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: |
| 230 | case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: |
| 231 | |
| 232 | TableHeader = ACPI_CAST_PTR (ACPI_TABLE_HEADER, |
| 233 | ACPI_PHYSADDR_TO_PTR (Address)); |
| 234 | if (!TableHeader) |
| 235 | { |
| 236 | return (AE_NO_MEMORY); |
| 237 | } |
| 238 | |
| 239 | AcpiTbInitTableDescriptor (TableDesc, Address, Flags, TableHeader); |
| 240 | return (AE_OK); |
| 241 | |
| 242 | default: |
| 243 | |
| 244 | break; |
| 245 | } |
| 246 | |
| 247 | /* Table is not valid yet */ |
| 248 | |
| 249 | return (AE_NO_MEMORY); |
| 250 | } |
| 251 | |
| 252 | |
| 253 | /******************************************************************************* |
| 254 | * |
| 255 | * FUNCTION: AcpiTbReleaseTempTable |
| 256 | * |
| 257 | * PARAMETERS: TableDesc - Table descriptor to be released |
| 258 | * |
| 259 | * RETURN: Status |
| 260 | * |
| 261 | * DESCRIPTION: The inverse of AcpiTbAcquireTempTable(). |
| 262 | * |
| 263 | *****************************************************************************/ |
| 264 | |
| 265 | void |
| 266 | AcpiTbReleaseTempTable ( |
| 267 | ACPI_TABLE_DESC *TableDesc) |
| 268 | { |
| 269 | |
| 270 | /* |
| 271 | * Note that the .Address is maintained by the callers of |
| 272 | * AcpiTbAcquireTempTable(), thus do not invoke AcpiTbUninstallTable() |
| 273 | * where .Address will be freed. |
| 274 | */ |
| 275 | AcpiTbInvalidateTable (TableDesc); |
| 276 | } |
| 277 | |
| 278 | |
| 279 | /****************************************************************************** |
| 280 | * |
| 281 | * FUNCTION: AcpiTbValidateTable |
| 282 | * |
| 283 | * PARAMETERS: TableDesc - Table descriptor |
| 284 | * |
| 285 | * RETURN: Status |
| 286 | * |
| 287 | * DESCRIPTION: This function is called to validate the table, the returned |
| 288 | * table descriptor is in "VALIDATED" state. |
| 289 | * |
| 290 | *****************************************************************************/ |
| 291 | |
| 292 | ACPI_STATUS |
| 293 | AcpiTbValidateTable ( |
| 294 | ACPI_TABLE_DESC *TableDesc) |
| 295 | { |
| 296 | ACPI_STATUS Status = AE_OK; |
| 297 | |
| 298 | |
| 299 | ACPI_FUNCTION_TRACE (TbValidateTable); |
| 300 | |
| 301 | |
| 302 | /* Validate the table if necessary */ |
| 303 | |
| 304 | if (!TableDesc->Pointer) |
| 305 | { |
| 306 | Status = AcpiTbAcquireTable (TableDesc, &TableDesc->Pointer, |
| 307 | &TableDesc->Length, &TableDesc->Flags); |
| 308 | if (!TableDesc->Pointer) |
| 309 | { |
| 310 | Status = AE_NO_MEMORY; |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | return_ACPI_STATUS (Status); |
| 315 | } |
| 316 | |
| 317 | |
| 318 | /******************************************************************************* |
| 319 | * |
| 320 | * FUNCTION: AcpiTbInvalidateTable |
| 321 | * |
| 322 | * PARAMETERS: TableDesc - Table descriptor |
| 323 | * |
| 324 | * RETURN: None |
| 325 | * |
| 326 | * DESCRIPTION: Invalidate one internal ACPI table, this is the inverse of |
| 327 | * AcpiTbValidateTable(). |
| 328 | * |
| 329 | ******************************************************************************/ |
| 330 | |
| 331 | void |
| 332 | AcpiTbInvalidateTable ( |
| 333 | ACPI_TABLE_DESC *TableDesc) |
| 334 | { |
| 335 | |
| 336 | ACPI_FUNCTION_TRACE (TbInvalidateTable); |
| 337 | |
| 338 | |
| 339 | /* Table must be validated */ |
| 340 | |
| 341 | if (!TableDesc->Pointer) |
| 342 | { |
| 343 | return_VOID; |
| 344 | } |
| 345 | |
| 346 | AcpiTbReleaseTable (TableDesc->Pointer, TableDesc->Length, |
| 347 | TableDesc->Flags); |
| 348 | TableDesc->Pointer = NULL; |
| 349 | |
| 350 | return_VOID; |
| 351 | } |
| 352 | |
| 353 | |
| 354 | /****************************************************************************** |
| 355 | * |
| 356 | * FUNCTION: AcpiTbValidateTempTable |
| 357 | * |
| 358 | * PARAMETERS: TableDesc - Table descriptor |
| 359 | * |
| 360 | * RETURN: Status |
| 361 | * |
| 362 | * DESCRIPTION: This function is called to validate the table, the returned |
| 363 | * table descriptor is in "VALIDATED" state. |
| 364 | * |
| 365 | *****************************************************************************/ |
| 366 | |
| 367 | ACPI_STATUS |
| 368 | AcpiTbValidateTempTable ( |
| 369 | ACPI_TABLE_DESC *TableDesc) |
| 370 | { |
| 371 | |
| 372 | if (!TableDesc->Pointer && !AcpiGbl_VerifyTableChecksum) |
| 373 | { |
| 374 | /* |
| 375 | * Only validates the header of the table. |
| 376 | * Note that Length contains the size of the mapping after invoking |
| 377 | * this work around, this value is required by |
| 378 | * AcpiTbReleaseTempTable(). |
| 379 | * We can do this because in AcpiInitTableDescriptor(), the Length |
| 380 | * field of the installed descriptor is filled with the actual |
| 381 | * table length obtaining from the table header. |
| 382 | */ |
| 383 | TableDesc->Length = sizeof (ACPI_TABLE_HEADER); |
| 384 | } |
| 385 | |
| 386 | return (AcpiTbValidateTable (TableDesc)); |
| 387 | } |
| 388 | |
| 389 | |
| 390 | /****************************************************************************** |
| 391 | * |
| 392 | * FUNCTION: AcpiTbVerifyTempTable |
| 393 | * |
| 394 | * PARAMETERS: TableDesc - Table descriptor |
| 395 | * Signature - Table signature to verify |
| 396 | * |
| 397 | * RETURN: Status |
| 398 | * |
| 399 | * DESCRIPTION: This function is called to validate and verify the table, the |
| 400 | * returned table descriptor is in "VALIDATED" state. |
| 401 | * |
| 402 | *****************************************************************************/ |
| 403 | |
| 404 | ACPI_STATUS |
| 405 | AcpiTbVerifyTempTable ( |
| 406 | ACPI_TABLE_DESC *TableDesc, |
| 407 | const char *Signature) |
| 408 | { |
| 409 | ACPI_STATUS Status = AE_OK; |
| 410 | |
| 411 | |
| 412 | ACPI_FUNCTION_TRACE (TbVerifyTempTable); |
| 413 | |
| 414 | |
| 415 | /* Validate the table */ |
| 416 | |
| 417 | Status = AcpiTbValidateTempTable (TableDesc); |
| 418 | if (ACPI_FAILURE (Status)) |
| 419 | { |
| 420 | return_ACPI_STATUS (AE_NO_MEMORY); |
| 421 | } |
| 422 | |
| 423 | /* If a particular signature is expected (DSDT/FACS), it must match */ |
| 424 | |
| 425 | if (Signature && |
| 426 | !ACPI_COMPARE_NAME (&TableDesc->Signature, Signature)) |
| 427 | { |
| 428 | ACPI_BIOS_ERROR ((AE_INFO, |
| 429 | "Invalid signature 0x%X for ACPI table, expected [%s]" , |
| 430 | TableDesc->Signature.Integer, Signature)); |
| 431 | Status = AE_BAD_SIGNATURE; |
| 432 | goto InvalidateAndExit; |
| 433 | } |
| 434 | |
| 435 | /* Verify the checksum */ |
| 436 | |
| 437 | if (AcpiGbl_VerifyTableChecksum) |
| 438 | { |
| 439 | Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length); |
| 440 | if (ACPI_FAILURE (Status)) |
| 441 | { |
| 442 | ACPI_EXCEPTION ((AE_INFO, AE_NO_MEMORY, |
| 443 | "%4.4s 0x%8.8X%8.8X" |
| 444 | " Attempted table install failed" , |
| 445 | AcpiUtValidNameseg (TableDesc->Signature.Ascii) ? |
| 446 | TableDesc->Signature.Ascii : "????" , |
| 447 | ACPI_FORMAT_UINT64 (TableDesc->Address))); |
| 448 | |
| 449 | goto InvalidateAndExit; |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | return_ACPI_STATUS (AE_OK); |
| 454 | |
| 455 | InvalidateAndExit: |
| 456 | AcpiTbInvalidateTable (TableDesc); |
| 457 | return_ACPI_STATUS (Status); |
| 458 | } |
| 459 | |
| 460 | |
| 461 | /******************************************************************************* |
| 462 | * |
| 463 | * FUNCTION: AcpiTbResizeRootTableList |
| 464 | * |
| 465 | * PARAMETERS: None |
| 466 | * |
| 467 | * RETURN: Status |
| 468 | * |
| 469 | * DESCRIPTION: Expand the size of global table array |
| 470 | * |
| 471 | ******************************************************************************/ |
| 472 | |
| 473 | ACPI_STATUS |
| 474 | AcpiTbResizeRootTableList ( |
| 475 | void) |
| 476 | { |
| 477 | ACPI_TABLE_DESC *Tables; |
| 478 | UINT32 TableCount; |
| 479 | |
| 480 | |
| 481 | ACPI_FUNCTION_TRACE (TbResizeRootTableList); |
| 482 | |
| 483 | |
| 484 | /* AllowResize flag is a parameter to AcpiInitializeTables */ |
| 485 | |
| 486 | if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE)) |
| 487 | { |
| 488 | ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed" )); |
| 489 | return_ACPI_STATUS (AE_SUPPORT); |
| 490 | } |
| 491 | |
| 492 | /* Increase the Table Array size */ |
| 493 | |
| 494 | if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) |
| 495 | { |
| 496 | TableCount = AcpiGbl_RootTableList.MaxTableCount; |
| 497 | } |
| 498 | else |
| 499 | { |
| 500 | TableCount = AcpiGbl_RootTableList.CurrentTableCount; |
| 501 | } |
| 502 | |
| 503 | Tables = ACPI_ALLOCATE_ZEROED ( |
| 504 | ((ACPI_SIZE) TableCount + ACPI_ROOT_TABLE_SIZE_INCREMENT) * |
| 505 | sizeof (ACPI_TABLE_DESC)); |
| 506 | if (!Tables) |
| 507 | { |
| 508 | ACPI_ERROR ((AE_INFO, "Could not allocate new root table array" )); |
| 509 | return_ACPI_STATUS (AE_NO_MEMORY); |
| 510 | } |
| 511 | |
| 512 | /* Copy and free the previous table array */ |
| 513 | |
| 514 | if (AcpiGbl_RootTableList.Tables) |
| 515 | { |
| 516 | memcpy (Tables, AcpiGbl_RootTableList.Tables, |
| 517 | (ACPI_SIZE) TableCount * sizeof (ACPI_TABLE_DESC)); |
| 518 | |
| 519 | if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) |
| 520 | { |
| 521 | ACPI_FREE (AcpiGbl_RootTableList.Tables); |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | AcpiGbl_RootTableList.Tables = Tables; |
| 526 | AcpiGbl_RootTableList.MaxTableCount = |
| 527 | TableCount + ACPI_ROOT_TABLE_SIZE_INCREMENT; |
| 528 | AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ORIGIN_ALLOCATED; |
| 529 | |
| 530 | return_ACPI_STATUS (AE_OK); |
| 531 | } |
| 532 | |
| 533 | |
| 534 | /******************************************************************************* |
| 535 | * |
| 536 | * FUNCTION: AcpiTbGetNextTableDescriptor |
| 537 | * |
| 538 | * PARAMETERS: TableIndex - Where table index is returned |
| 539 | * TableDesc - Where table descriptor is returned |
| 540 | * |
| 541 | * RETURN: Status and table index/descriptor. |
| 542 | * |
| 543 | * DESCRIPTION: Allocate a new ACPI table entry to the global table list |
| 544 | * |
| 545 | ******************************************************************************/ |
| 546 | |
| 547 | ACPI_STATUS |
| 548 | AcpiTbGetNextTableDescriptor ( |
| 549 | UINT32 *TableIndex, |
| 550 | ACPI_TABLE_DESC **TableDesc) |
| 551 | { |
| 552 | ACPI_STATUS Status; |
| 553 | UINT32 i; |
| 554 | |
| 555 | |
| 556 | /* Ensure that there is room for the table in the Root Table List */ |
| 557 | |
| 558 | if (AcpiGbl_RootTableList.CurrentTableCount >= |
| 559 | AcpiGbl_RootTableList.MaxTableCount) |
| 560 | { |
| 561 | Status = AcpiTbResizeRootTableList(); |
| 562 | if (ACPI_FAILURE (Status)) |
| 563 | { |
| 564 | return (Status); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | i = AcpiGbl_RootTableList.CurrentTableCount; |
| 569 | AcpiGbl_RootTableList.CurrentTableCount++; |
| 570 | |
| 571 | if (TableIndex) |
| 572 | { |
| 573 | *TableIndex = i; |
| 574 | } |
| 575 | if (TableDesc) |
| 576 | { |
| 577 | *TableDesc = &AcpiGbl_RootTableList.Tables[i]; |
| 578 | } |
| 579 | |
| 580 | return (AE_OK); |
| 581 | } |
| 582 | |
| 583 | |
| 584 | /******************************************************************************* |
| 585 | * |
| 586 | * FUNCTION: AcpiTbTerminate |
| 587 | * |
| 588 | * PARAMETERS: None |
| 589 | * |
| 590 | * RETURN: None |
| 591 | * |
| 592 | * DESCRIPTION: Delete all internal ACPI tables |
| 593 | * |
| 594 | ******************************************************************************/ |
| 595 | |
| 596 | void |
| 597 | AcpiTbTerminate ( |
| 598 | void) |
| 599 | { |
| 600 | UINT32 i; |
| 601 | |
| 602 | |
| 603 | ACPI_FUNCTION_TRACE (TbTerminate); |
| 604 | |
| 605 | |
| 606 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 607 | |
| 608 | /* Delete the individual tables */ |
| 609 | |
| 610 | for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++) |
| 611 | { |
| 612 | AcpiTbUninstallTable (&AcpiGbl_RootTableList.Tables[i]); |
| 613 | } |
| 614 | |
| 615 | /* |
| 616 | * Delete the root table array if allocated locally. Array cannot be |
| 617 | * mapped, so we don't need to check for that flag. |
| 618 | */ |
| 619 | if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) |
| 620 | { |
| 621 | ACPI_FREE (AcpiGbl_RootTableList.Tables); |
| 622 | } |
| 623 | |
| 624 | AcpiGbl_RootTableList.Tables = NULL; |
| 625 | AcpiGbl_RootTableList.Flags = 0; |
| 626 | AcpiGbl_RootTableList.CurrentTableCount = 0; |
| 627 | |
| 628 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n" )); |
| 629 | |
| 630 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 631 | return_VOID; |
| 632 | } |
| 633 | |
| 634 | |
| 635 | /******************************************************************************* |
| 636 | * |
| 637 | * FUNCTION: AcpiTbDeleteNamespaceByOwner |
| 638 | * |
| 639 | * PARAMETERS: TableIndex - Table index |
| 640 | * |
| 641 | * RETURN: Status |
| 642 | * |
| 643 | * DESCRIPTION: Delete all namespace objects created when this table was loaded. |
| 644 | * |
| 645 | ******************************************************************************/ |
| 646 | |
| 647 | ACPI_STATUS |
| 648 | AcpiTbDeleteNamespaceByOwner ( |
| 649 | UINT32 TableIndex) |
| 650 | { |
| 651 | ACPI_OWNER_ID OwnerId; |
| 652 | ACPI_STATUS Status; |
| 653 | |
| 654 | |
| 655 | ACPI_FUNCTION_TRACE (TbDeleteNamespaceByOwner); |
| 656 | |
| 657 | |
| 658 | Status = AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 659 | if (ACPI_FAILURE (Status)) |
| 660 | { |
| 661 | return_ACPI_STATUS (Status); |
| 662 | } |
| 663 | |
| 664 | if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount) |
| 665 | { |
| 666 | /* The table index does not exist */ |
| 667 | |
| 668 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 669 | return_ACPI_STATUS (AE_NOT_EXIST); |
| 670 | } |
| 671 | |
| 672 | /* Get the owner ID for this table, used to delete namespace nodes */ |
| 673 | |
| 674 | OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId; |
| 675 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 676 | |
| 677 | /* |
| 678 | * Need to acquire the namespace writer lock to prevent interference |
| 679 | * with any concurrent namespace walks. The interpreter must be |
| 680 | * released during the deletion since the acquisition of the deletion |
| 681 | * lock may block, and also since the execution of a namespace walk |
| 682 | * must be allowed to use the interpreter. |
| 683 | */ |
| 684 | Status = AcpiUtAcquireWriteLock (&AcpiGbl_NamespaceRwLock); |
| 685 | if (ACPI_FAILURE (Status)) |
| 686 | { |
| 687 | return_ACPI_STATUS (Status); |
| 688 | } |
| 689 | AcpiNsDeleteNamespaceByOwner (OwnerId); |
| 690 | AcpiUtReleaseWriteLock (&AcpiGbl_NamespaceRwLock); |
| 691 | return_ACPI_STATUS (Status); |
| 692 | } |
| 693 | |
| 694 | |
| 695 | /******************************************************************************* |
| 696 | * |
| 697 | * FUNCTION: AcpiTbAllocateOwnerId |
| 698 | * |
| 699 | * PARAMETERS: TableIndex - Table index |
| 700 | * |
| 701 | * RETURN: Status |
| 702 | * |
| 703 | * DESCRIPTION: Allocates OwnerId in TableDesc |
| 704 | * |
| 705 | ******************************************************************************/ |
| 706 | |
| 707 | ACPI_STATUS |
| 708 | AcpiTbAllocateOwnerId ( |
| 709 | UINT32 TableIndex) |
| 710 | { |
| 711 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
| 712 | |
| 713 | |
| 714 | ACPI_FUNCTION_TRACE (TbAllocateOwnerId); |
| 715 | |
| 716 | |
| 717 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 718 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
| 719 | { |
| 720 | Status = AcpiUtAllocateOwnerId ( |
| 721 | &(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId)); |
| 722 | } |
| 723 | |
| 724 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 725 | return_ACPI_STATUS (Status); |
| 726 | } |
| 727 | |
| 728 | |
| 729 | /******************************************************************************* |
| 730 | * |
| 731 | * FUNCTION: AcpiTbReleaseOwnerId |
| 732 | * |
| 733 | * PARAMETERS: TableIndex - Table index |
| 734 | * |
| 735 | * RETURN: Status |
| 736 | * |
| 737 | * DESCRIPTION: Releases OwnerId in TableDesc |
| 738 | * |
| 739 | ******************************************************************************/ |
| 740 | |
| 741 | ACPI_STATUS |
| 742 | AcpiTbReleaseOwnerId ( |
| 743 | UINT32 TableIndex) |
| 744 | { |
| 745 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
| 746 | |
| 747 | |
| 748 | ACPI_FUNCTION_TRACE (TbReleaseOwnerId); |
| 749 | |
| 750 | |
| 751 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 752 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
| 753 | { |
| 754 | AcpiUtReleaseOwnerId ( |
| 755 | &(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId)); |
| 756 | Status = AE_OK; |
| 757 | } |
| 758 | |
| 759 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 760 | return_ACPI_STATUS (Status); |
| 761 | } |
| 762 | |
| 763 | |
| 764 | /******************************************************************************* |
| 765 | * |
| 766 | * FUNCTION: AcpiTbGetOwnerId |
| 767 | * |
| 768 | * PARAMETERS: TableIndex - Table index |
| 769 | * OwnerId - Where the table OwnerId is returned |
| 770 | * |
| 771 | * RETURN: Status |
| 772 | * |
| 773 | * DESCRIPTION: returns OwnerId for the ACPI table |
| 774 | * |
| 775 | ******************************************************************************/ |
| 776 | |
| 777 | ACPI_STATUS |
| 778 | AcpiTbGetOwnerId ( |
| 779 | UINT32 TableIndex, |
| 780 | ACPI_OWNER_ID *OwnerId) |
| 781 | { |
| 782 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
| 783 | |
| 784 | |
| 785 | ACPI_FUNCTION_TRACE (TbGetOwnerId); |
| 786 | |
| 787 | |
| 788 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 789 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
| 790 | { |
| 791 | *OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId; |
| 792 | Status = AE_OK; |
| 793 | } |
| 794 | |
| 795 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 796 | return_ACPI_STATUS (Status); |
| 797 | } |
| 798 | |
| 799 | |
| 800 | /******************************************************************************* |
| 801 | * |
| 802 | * FUNCTION: AcpiTbIsTableLoaded |
| 803 | * |
| 804 | * PARAMETERS: TableIndex - Index into the root table |
| 805 | * |
| 806 | * RETURN: Table Loaded Flag |
| 807 | * |
| 808 | ******************************************************************************/ |
| 809 | |
| 810 | BOOLEAN |
| 811 | AcpiTbIsTableLoaded ( |
| 812 | UINT32 TableIndex) |
| 813 | { |
| 814 | BOOLEAN IsLoaded = FALSE; |
| 815 | |
| 816 | |
| 817 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 818 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
| 819 | { |
| 820 | IsLoaded = (BOOLEAN) |
| 821 | (AcpiGbl_RootTableList.Tables[TableIndex].Flags & |
| 822 | ACPI_TABLE_IS_LOADED); |
| 823 | } |
| 824 | |
| 825 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 826 | return (IsLoaded); |
| 827 | } |
| 828 | |
| 829 | |
| 830 | /******************************************************************************* |
| 831 | * |
| 832 | * FUNCTION: AcpiTbSetTableLoadedFlag |
| 833 | * |
| 834 | * PARAMETERS: TableIndex - Table index |
| 835 | * IsLoaded - TRUE if table is loaded, FALSE otherwise |
| 836 | * |
| 837 | * RETURN: None |
| 838 | * |
| 839 | * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. |
| 840 | * |
| 841 | ******************************************************************************/ |
| 842 | |
| 843 | void |
| 844 | AcpiTbSetTableLoadedFlag ( |
| 845 | UINT32 TableIndex, |
| 846 | BOOLEAN IsLoaded) |
| 847 | { |
| 848 | |
| 849 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 850 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
| 851 | { |
| 852 | if (IsLoaded) |
| 853 | { |
| 854 | AcpiGbl_RootTableList.Tables[TableIndex].Flags |= |
| 855 | ACPI_TABLE_IS_LOADED; |
| 856 | } |
| 857 | else |
| 858 | { |
| 859 | AcpiGbl_RootTableList.Tables[TableIndex].Flags &= |
| 860 | ~ACPI_TABLE_IS_LOADED; |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 865 | } |
| 866 | |
| 867 | |
| 868 | /******************************************************************************* |
| 869 | * |
| 870 | * FUNCTION: AcpiTbLoadTable |
| 871 | * |
| 872 | * PARAMETERS: TableIndex - Table index |
| 873 | * ParentNode - Where table index is returned |
| 874 | * |
| 875 | * RETURN: Status |
| 876 | * |
| 877 | * DESCRIPTION: Load an ACPI table |
| 878 | * |
| 879 | ******************************************************************************/ |
| 880 | |
| 881 | ACPI_STATUS |
| 882 | AcpiTbLoadTable ( |
| 883 | UINT32 TableIndex, |
| 884 | ACPI_NAMESPACE_NODE *ParentNode) |
| 885 | { |
| 886 | ACPI_TABLE_HEADER *Table; |
| 887 | ACPI_STATUS Status; |
| 888 | ACPI_OWNER_ID OwnerId; |
| 889 | |
| 890 | |
| 891 | ACPI_FUNCTION_TRACE (TbLoadTable); |
| 892 | |
| 893 | |
| 894 | /* |
| 895 | * Note: Now table is "INSTALLED", it must be validated before |
| 896 | * using. |
| 897 | */ |
| 898 | Status = AcpiGetTableByIndex (TableIndex, &Table); |
| 899 | if (ACPI_FAILURE (Status)) |
| 900 | { |
| 901 | return_ACPI_STATUS (Status); |
| 902 | } |
| 903 | |
| 904 | Status = AcpiNsLoadTable (TableIndex, ParentNode); |
| 905 | |
| 906 | /* Execute any module-level code that was found in the table */ |
| 907 | |
| 908 | if (!AcpiGbl_ParseTableAsTermList && AcpiGbl_GroupModuleLevelCode) |
| 909 | { |
| 910 | AcpiNsExecModuleCodeList (); |
| 911 | } |
| 912 | |
| 913 | /* |
| 914 | * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is |
| 915 | * responsible for discovering any new wake GPEs by running _PRW methods |
| 916 | * that may have been loaded by this table. |
| 917 | */ |
| 918 | Status = AcpiTbGetOwnerId (TableIndex, &OwnerId); |
| 919 | if (ACPI_SUCCESS (Status)) |
| 920 | { |
| 921 | AcpiEvUpdateGpes (OwnerId); |
| 922 | } |
| 923 | |
| 924 | /* Invoke table handler if present */ |
| 925 | |
| 926 | if (AcpiGbl_TableHandler) |
| 927 | { |
| 928 | (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table, |
| 929 | AcpiGbl_TableHandlerContext); |
| 930 | } |
| 931 | |
| 932 | return_ACPI_STATUS (Status); |
| 933 | } |
| 934 | |
| 935 | |
| 936 | /******************************************************************************* |
| 937 | * |
| 938 | * FUNCTION: AcpiTbInstallAndLoadTable |
| 939 | * |
| 940 | * PARAMETERS: Table - Pointer to the table |
| 941 | * Address - Physical address of the table |
| 942 | * Flags - Allocation flags of the table |
| 943 | * TableIndex - Where table index is returned |
| 944 | * |
| 945 | * RETURN: Status |
| 946 | * |
| 947 | * DESCRIPTION: Install and load an ACPI table |
| 948 | * |
| 949 | ******************************************************************************/ |
| 950 | |
| 951 | ACPI_STATUS |
| 952 | AcpiTbInstallAndLoadTable ( |
| 953 | ACPI_TABLE_HEADER *Table, |
| 954 | ACPI_PHYSICAL_ADDRESS Address, |
| 955 | UINT8 Flags, |
| 956 | BOOLEAN Override, |
| 957 | UINT32 *TableIndex) |
| 958 | { |
| 959 | ACPI_STATUS Status; |
| 960 | UINT32 i; |
| 961 | ACPI_OWNER_ID OwnerId; |
| 962 | |
| 963 | |
| 964 | ACPI_FUNCTION_TRACE (AcpiLoadTable); |
| 965 | |
| 966 | |
| 967 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 968 | |
| 969 | /* Install the table and load it into the namespace */ |
| 970 | |
| 971 | Status = AcpiTbInstallStandardTable (Address, Flags, TRUE, |
| 972 | Override, &i); |
| 973 | if (ACPI_FAILURE (Status)) |
| 974 | { |
| 975 | goto UnlockAndExit; |
| 976 | } |
| 977 | |
| 978 | /* |
| 979 | * Note: Now table is "INSTALLED", it must be validated before |
| 980 | * using. |
| 981 | */ |
| 982 | Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]); |
| 983 | if (ACPI_FAILURE (Status)) |
| 984 | { |
| 985 | goto UnlockAndExit; |
| 986 | } |
| 987 | |
| 988 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 989 | Status = AcpiNsLoadTable (i, AcpiGbl_RootNode); |
| 990 | |
| 991 | /* Execute any module-level code that was found in the table */ |
| 992 | |
| 993 | if (!AcpiGbl_ParseTableAsTermList && AcpiGbl_GroupModuleLevelCode) |
| 994 | { |
| 995 | AcpiNsExecModuleCodeList (); |
| 996 | } |
| 997 | |
| 998 | /* |
| 999 | * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is |
| 1000 | * responsible for discovering any new wake GPEs by running _PRW methods |
| 1001 | * that may have been loaded by this table. |
| 1002 | */ |
| 1003 | Status = AcpiTbGetOwnerId (i, &OwnerId); |
| 1004 | if (ACPI_SUCCESS (Status)) |
| 1005 | { |
| 1006 | AcpiEvUpdateGpes (OwnerId); |
| 1007 | } |
| 1008 | |
| 1009 | /* Invoke table handler if present */ |
| 1010 | |
| 1011 | if (AcpiGbl_TableHandler) |
| 1012 | { |
| 1013 | (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table, |
| 1014 | AcpiGbl_TableHandlerContext); |
| 1015 | } |
| 1016 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
| 1017 | |
| 1018 | UnlockAndExit: |
| 1019 | *TableIndex = i; |
| 1020 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
| 1021 | return_ACPI_STATUS (Status); |
| 1022 | } |
| 1023 | |