1 /****************************************************************************** 2 * 3 * Module Name: dtutils.c - Utility routines for the data table compiler 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2017, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "aslcompiler.h" 153 #include "dtcompiler.h" 154 #include "actables.h" 155 156 #define _COMPONENT DT_COMPILER 157 ACPI_MODULE_NAME ("dtutils") 158 159 /* Local prototypes */ 160 161 static void 162 DtSum ( 163 DT_SUBTABLE *Subtable, 164 void *Context, 165 void *ReturnValue); 166 167 168 /****************************************************************************** 169 * 170 * FUNCTION: DtError 171 * 172 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 173 * MessageId - Index into global message buffer 174 * Op - Parse node where error happened 175 * ExtraMessage - additional error message 176 * 177 * RETURN: None 178 * 179 * DESCRIPTION: Common error interface for data table compiler 180 * 181 *****************************************************************************/ 182 183 void 184 DtError ( 185 UINT8 Level, 186 UINT16 MessageId, 187 DT_FIELD *FieldObject, 188 char *ExtraMessage) 189 { 190 191 /* Check if user wants to ignore this exception */ 192 193 if (AslIsExceptionIgnored (Level, MessageId)) 194 { 195 return; 196 } 197 198 if (FieldObject) 199 { 200 AslCommonError (Level, MessageId, 201 FieldObject->Line, 202 FieldObject->Line, 203 FieldObject->ByteOffset, 204 FieldObject->Column, 205 Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 206 } 207 else 208 { 209 AslCommonError (Level, MessageId, 0, 210 0, 0, 0, 0, ExtraMessage); 211 } 212 } 213 214 215 /****************************************************************************** 216 * 217 * FUNCTION: DtNameError 218 * 219 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 220 * MessageId - Index into global message buffer 221 * Op - Parse node where error happened 222 * ExtraMessage - additional error message 223 * 224 * RETURN: None 225 * 226 * DESCRIPTION: Error interface for named objects 227 * 228 *****************************************************************************/ 229 230 void 231 DtNameError ( 232 UINT8 Level, 233 UINT16 MessageId, 234 DT_FIELD *FieldObject, 235 char *ExtraMessage) 236 { 237 238 switch (Level) 239 { 240 case ASL_WARNING2: 241 case ASL_WARNING3: 242 243 if (Gbl_WarningLevel < Level) 244 { 245 return; 246 } 247 break; 248 249 default: 250 251 break; 252 } 253 254 if (FieldObject) 255 { 256 AslCommonError (Level, MessageId, 257 FieldObject->Line, 258 FieldObject->Line, 259 FieldObject->ByteOffset, 260 FieldObject->NameColumn, 261 Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 262 } 263 else 264 { 265 AslCommonError (Level, MessageId, 0, 266 0, 0, 0, 0, ExtraMessage); 267 } 268 } 269 270 271 /******************************************************************************* 272 * 273 * FUNCTION: DtFatal 274 * 275 * PARAMETERS: None 276 * 277 * RETURN: None 278 * 279 * DESCRIPTION: Dump the error log and abort the compiler. Used for serious 280 * compile or I/O errors 281 * 282 ******************************************************************************/ 283 284 void 285 DtFatal ( 286 UINT16 MessageId, 287 DT_FIELD *FieldObject, 288 char *ExtraMessage) 289 { 290 291 DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage); 292 293 /* 294 * TBD: remove this entire function, DtFatal 295 * 296 * We cannot abort the compiler on error, because we may be compiling a 297 * list of files. We must move on to the next file. 298 */ 299 #ifdef __OBSOLETE 300 CmCleanupAndExit (); 301 exit (1); 302 #endif 303 } 304 305 306 /******************************************************************************* 307 * 308 * FUNCTION: DtDoConstant 309 * 310 * PARAMETERS: String - Only hex constants are supported, 311 * regardless of whether the 0x prefix 312 * is used 313 * 314 * RETURN: Converted Integer 315 * 316 * DESCRIPTION: Convert a string to an integer, with overflow/error checking. 317 * 318 ******************************************************************************/ 319 320 UINT64 321 DtDoConstant ( 322 char *String) 323 { 324 UINT64 ConvertedInteger; 325 326 327 /* 328 * TBD: The ImplicitStrtoul64 function does not report overflow 329 * conditions. The input string is simply truncated. If it is 330 * desired to report overflow to the table compiler, this should 331 * somehow be added here. Note: integers that are prefixed with 0x 332 * or not are both hex integers. 333 */ 334 ConvertedInteger = AcpiUtImplicitStrtoul64 (String); 335 return (ConvertedInteger); 336 } 337 338 /****************************************************************************** 339 * 340 * FUNCTION: DtGetFieldValue 341 * 342 * PARAMETERS: Field - Current field list pointer 343 * 344 * RETURN: Field value 345 * 346 * DESCRIPTION: Get field value 347 * 348 *****************************************************************************/ 349 350 char * 351 DtGetFieldValue ( 352 DT_FIELD *Field) 353 { 354 if (!Field) 355 { 356 return (NULL); 357 } 358 359 return (Field->Value); 360 } 361 362 363 /****************************************************************************** 364 * 365 * FUNCTION: DtGetFieldType 366 * 367 * PARAMETERS: Info - Data table info 368 * 369 * RETURN: Field type 370 * 371 * DESCRIPTION: Get field type 372 * 373 *****************************************************************************/ 374 375 UINT8 376 DtGetFieldType ( 377 ACPI_DMTABLE_INFO *Info) 378 { 379 UINT8 Type; 380 381 382 /* DT_FLAG means that this is the start of a block of flag bits */ 383 /* TBD - we can make these a separate opcode later */ 384 385 if (Info->Flags & DT_FLAG) 386 { 387 return (DT_FIELD_TYPE_FLAGS_INTEGER); 388 } 389 390 /* Type is based upon the opcode for this field in the info table */ 391 392 switch (Info->Opcode) 393 { 394 case ACPI_DMT_FLAG0: 395 case ACPI_DMT_FLAG1: 396 case ACPI_DMT_FLAG2: 397 case ACPI_DMT_FLAG3: 398 case ACPI_DMT_FLAG4: 399 case ACPI_DMT_FLAG5: 400 case ACPI_DMT_FLAG6: 401 case ACPI_DMT_FLAG7: 402 case ACPI_DMT_FLAGS0: 403 case ACPI_DMT_FLAGS1: 404 case ACPI_DMT_FLAGS2: 405 case ACPI_DMT_FLAGS4: 406 case ACPI_DMT_FLAGS4_0: 407 case ACPI_DMT_FLAGS4_4: 408 case ACPI_DMT_FLAGS4_8: 409 case ACPI_DMT_FLAGS4_12: 410 case ACPI_DMT_FLAGS16_16: 411 412 Type = DT_FIELD_TYPE_FLAG; 413 break; 414 415 case ACPI_DMT_NAME4: 416 case ACPI_DMT_SIG: 417 case ACPI_DMT_NAME6: 418 case ACPI_DMT_NAME8: 419 case ACPI_DMT_STRING: 420 421 Type = DT_FIELD_TYPE_STRING; 422 break; 423 424 case ACPI_DMT_BUFFER: 425 case ACPI_DMT_RAW_BUFFER: 426 case ACPI_DMT_BUF7: 427 case ACPI_DMT_BUF10: 428 case ACPI_DMT_BUF12: 429 case ACPI_DMT_BUF16: 430 case ACPI_DMT_BUF128: 431 case ACPI_DMT_PCI_PATH: 432 433 Type = DT_FIELD_TYPE_BUFFER; 434 break; 435 436 case ACPI_DMT_GAS: 437 case ACPI_DMT_HESTNTFY: 438 case ACPI_DMT_IORTMEM: 439 440 Type = DT_FIELD_TYPE_INLINE_SUBTABLE; 441 break; 442 443 case ACPI_DMT_UNICODE: 444 445 Type = DT_FIELD_TYPE_UNICODE; 446 break; 447 448 case ACPI_DMT_UUID: 449 450 Type = DT_FIELD_TYPE_UUID; 451 break; 452 453 case ACPI_DMT_DEVICE_PATH: 454 455 Type = DT_FIELD_TYPE_DEVICE_PATH; 456 break; 457 458 case ACPI_DMT_LABEL: 459 460 Type = DT_FIELD_TYPE_LABEL; 461 break; 462 463 default: 464 465 Type = DT_FIELD_TYPE_INTEGER; 466 break; 467 } 468 469 return (Type); 470 } 471 472 473 /****************************************************************************** 474 * 475 * FUNCTION: DtGetBufferLength 476 * 477 * PARAMETERS: Buffer - List of integers, 478 * for example "10 3A 4F 2E" 479 * 480 * RETURN: Count of integer 481 * 482 * DESCRIPTION: Get length of bytes needed to store the integers 483 * 484 *****************************************************************************/ 485 486 UINT32 487 DtGetBufferLength ( 488 char *Buffer) 489 { 490 UINT32 ByteLength = 0; 491 492 493 while (*Buffer) 494 { 495 if (*Buffer == ' ') 496 { 497 ByteLength++; 498 499 while (*Buffer == ' ') 500 { 501 Buffer++; 502 } 503 } 504 505 Buffer++; 506 } 507 508 return (++ByteLength); 509 } 510 511 512 /****************************************************************************** 513 * 514 * FUNCTION: DtGetFieldLength 515 * 516 * PARAMETERS: Field - Current field 517 * Info - Data table info 518 * 519 * RETURN: Field length 520 * 521 * DESCRIPTION: Get length of bytes needed to compile the field 522 * 523 * Note: This function must remain in sync with AcpiDmDumpTable. 524 * 525 *****************************************************************************/ 526 527 UINT32 528 DtGetFieldLength ( 529 DT_FIELD *Field, 530 ACPI_DMTABLE_INFO *Info) 531 { 532 UINT32 ByteLength = 0; 533 char *Value; 534 535 536 /* Length is based upon the opcode for this field in the info table */ 537 538 switch (Info->Opcode) 539 { 540 case ACPI_DMT_FLAG0: 541 case ACPI_DMT_FLAG1: 542 case ACPI_DMT_FLAG2: 543 case ACPI_DMT_FLAG3: 544 case ACPI_DMT_FLAG4: 545 case ACPI_DMT_FLAG5: 546 case ACPI_DMT_FLAG6: 547 case ACPI_DMT_FLAG7: 548 case ACPI_DMT_FLAGS0: 549 case ACPI_DMT_FLAGS1: 550 case ACPI_DMT_FLAGS2: 551 case ACPI_DMT_FLAGS4: 552 case ACPI_DMT_FLAGS4_0: 553 case ACPI_DMT_FLAGS4_4: 554 case ACPI_DMT_FLAGS4_8: 555 case ACPI_DMT_FLAGS4_12: 556 case ACPI_DMT_FLAGS16_16: 557 case ACPI_DMT_LABEL: 558 case ACPI_DMT_EXTRA_TEXT: 559 560 ByteLength = 0; 561 break; 562 563 case ACPI_DMT_UINT8: 564 case ACPI_DMT_CHKSUM: 565 case ACPI_DMT_SPACEID: 566 case ACPI_DMT_ACCWIDTH: 567 case ACPI_DMT_IVRS: 568 case ACPI_DMT_GTDT: 569 case ACPI_DMT_MADT: 570 case ACPI_DMT_PCCT: 571 case ACPI_DMT_PMTT: 572 case ACPI_DMT_PPTT: 573 case ACPI_DMT_SRAT: 574 case ACPI_DMT_ASF: 575 case ACPI_DMT_HESTNTYP: 576 case ACPI_DMT_FADTPM: 577 case ACPI_DMT_EINJACT: 578 case ACPI_DMT_EINJINST: 579 case ACPI_DMT_ERSTACT: 580 case ACPI_DMT_ERSTINST: 581 case ACPI_DMT_DMAR_SCOPE: 582 583 ByteLength = 1; 584 break; 585 586 case ACPI_DMT_UINT16: 587 case ACPI_DMT_DMAR: 588 case ACPI_DMT_HEST: 589 case ACPI_DMT_HMAT: 590 case ACPI_DMT_NFIT: 591 case ACPI_DMT_PCI_PATH: 592 593 ByteLength = 2; 594 break; 595 596 case ACPI_DMT_UINT24: 597 598 ByteLength = 3; 599 break; 600 601 case ACPI_DMT_UINT32: 602 case ACPI_DMT_NAME4: 603 case ACPI_DMT_SIG: 604 case ACPI_DMT_LPIT: 605 606 ByteLength = 4; 607 break; 608 609 case ACPI_DMT_UINT40: 610 611 ByteLength = 5; 612 break; 613 614 case ACPI_DMT_UINT48: 615 case ACPI_DMT_NAME6: 616 617 ByteLength = 6; 618 break; 619 620 case ACPI_DMT_UINT56: 621 case ACPI_DMT_BUF7: 622 623 ByteLength = 7; 624 break; 625 626 case ACPI_DMT_UINT64: 627 case ACPI_DMT_NAME8: 628 629 ByteLength = 8; 630 break; 631 632 case ACPI_DMT_STRING: 633 634 Value = DtGetFieldValue (Field); 635 if (Value) 636 { 637 ByteLength = strlen (Value) + 1; 638 } 639 else 640 { /* At this point, this is a fatal error */ 641 642 sprintf (MsgBuffer, "Expected \"%s\"", Info->Name); 643 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer); 644 return (0); 645 } 646 break; 647 648 case ACPI_DMT_GAS: 649 650 ByteLength = sizeof (ACPI_GENERIC_ADDRESS); 651 break; 652 653 case ACPI_DMT_HESTNTFY: 654 655 ByteLength = sizeof (ACPI_HEST_NOTIFY); 656 break; 657 658 case ACPI_DMT_IORTMEM: 659 660 ByteLength = sizeof (ACPI_IORT_MEMORY_ACCESS); 661 break; 662 663 case ACPI_DMT_BUFFER: 664 case ACPI_DMT_RAW_BUFFER: 665 666 Value = DtGetFieldValue (Field); 667 if (Value) 668 { 669 ByteLength = DtGetBufferLength (Value); 670 } 671 else 672 { /* At this point, this is a fatal error */ 673 674 sprintf (MsgBuffer, "Expected \"%s\"", Info->Name); 675 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer); 676 return (0); 677 } 678 break; 679 680 case ACPI_DMT_BUF10: 681 682 ByteLength = 10; 683 break; 684 685 case ACPI_DMT_BUF12: 686 687 ByteLength = 12; 688 break; 689 690 case ACPI_DMT_BUF16: 691 case ACPI_DMT_UUID: 692 693 ByteLength = 16; 694 break; 695 696 case ACPI_DMT_BUF128: 697 698 ByteLength = 128; 699 break; 700 701 case ACPI_DMT_UNICODE: 702 703 Value = DtGetFieldValue (Field); 704 705 /* TBD: error if Value is NULL? (as below?) */ 706 707 ByteLength = (strlen (Value) + 1) * sizeof(UINT16); 708 break; 709 710 default: 711 712 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode"); 713 return (0); 714 } 715 716 return (ByteLength); 717 } 718 719 720 /****************************************************************************** 721 * 722 * FUNCTION: DtSum 723 * 724 * PARAMETERS: DT_WALK_CALLBACK: 725 * Subtable - Subtable 726 * Context - Unused 727 * ReturnValue - Store the checksum of subtable 728 * 729 * RETURN: Status 730 * 731 * DESCRIPTION: Get the checksum of subtable 732 * 733 *****************************************************************************/ 734 735 static void 736 DtSum ( 737 DT_SUBTABLE *Subtable, 738 void *Context, 739 void *ReturnValue) 740 { 741 UINT8 Checksum; 742 UINT8 *Sum = ReturnValue; 743 744 745 Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length); 746 *Sum = (UINT8) (*Sum + Checksum); 747 } 748 749 750 /****************************************************************************** 751 * 752 * FUNCTION: DtSetTableChecksum 753 * 754 * PARAMETERS: ChecksumPointer - Where to return the checksum 755 * 756 * RETURN: None 757 * 758 * DESCRIPTION: Set checksum of the whole data table into the checksum field 759 * 760 *****************************************************************************/ 761 762 void 763 DtSetTableChecksum ( 764 UINT8 *ChecksumPointer) 765 { 766 UINT8 Checksum = 0; 767 UINT8 OldSum; 768 769 770 DtWalkTableTree (Gbl_RootTable, DtSum, NULL, &Checksum); 771 772 OldSum = *ChecksumPointer; 773 Checksum = (UINT8) (Checksum - OldSum); 774 775 /* Compute the final checksum */ 776 777 Checksum = (UINT8) (0 - Checksum); 778 *ChecksumPointer = Checksum; 779 } 780 781 782 /****************************************************************************** 783 * 784 * FUNCTION: DtSetTableLength 785 * 786 * PARAMETERS: None 787 * 788 * RETURN: None 789 * 790 * DESCRIPTION: Walk the subtables and set all the length fields 791 * 792 *****************************************************************************/ 793 794 void 795 DtSetTableLength ( 796 void) 797 { 798 DT_SUBTABLE *ParentTable; 799 DT_SUBTABLE *ChildTable; 800 801 802 ParentTable = Gbl_RootTable; 803 ChildTable = NULL; 804 805 if (!ParentTable) 806 { 807 return; 808 } 809 810 DtSetSubtableLength (ParentTable); 811 812 while (1) 813 { 814 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 815 if (ChildTable) 816 { 817 if (ChildTable->LengthField) 818 { 819 DtSetSubtableLength (ChildTable); 820 } 821 822 if (ChildTable->Child) 823 { 824 ParentTable = ChildTable; 825 ChildTable = NULL; 826 } 827 else 828 { 829 ParentTable->TotalLength += ChildTable->TotalLength; 830 if (ParentTable->LengthField) 831 { 832 DtSetSubtableLength (ParentTable); 833 } 834 } 835 } 836 else 837 { 838 ChildTable = ParentTable; 839 840 if (ChildTable == Gbl_RootTable) 841 { 842 break; 843 } 844 845 ParentTable = DtGetParentSubtable (ParentTable); 846 847 ParentTable->TotalLength += ChildTable->TotalLength; 848 if (ParentTable->LengthField) 849 { 850 DtSetSubtableLength (ParentTable); 851 } 852 } 853 } 854 } 855 856 857 /****************************************************************************** 858 * 859 * FUNCTION: DtWalkTableTree 860 * 861 * PARAMETERS: StartTable - Subtable in the tree where walking begins 862 * UserFunction - Called during the walk 863 * Context - Passed to user function 864 * ReturnValue - The return value of UserFunction 865 * 866 * RETURN: None 867 * 868 * DESCRIPTION: Performs a depth-first walk of the subtable tree 869 * 870 *****************************************************************************/ 871 872 void 873 DtWalkTableTree ( 874 DT_SUBTABLE *StartTable, 875 DT_WALK_CALLBACK UserFunction, 876 void *Context, 877 void *ReturnValue) 878 { 879 DT_SUBTABLE *ParentTable; 880 DT_SUBTABLE *ChildTable; 881 882 883 ParentTable = StartTable; 884 ChildTable = NULL; 885 886 if (!ParentTable) 887 { 888 return; 889 } 890 891 UserFunction (ParentTable, Context, ReturnValue); 892 893 while (1) 894 { 895 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 896 if (ChildTable) 897 { 898 UserFunction (ChildTable, Context, ReturnValue); 899 900 if (ChildTable->Child) 901 { 902 ParentTable = ChildTable; 903 ChildTable = NULL; 904 } 905 } 906 else 907 { 908 ChildTable = ParentTable; 909 if (ChildTable == Gbl_RootTable) 910 { 911 break; 912 } 913 914 ParentTable = DtGetParentSubtable (ParentTable); 915 916 if (ChildTable->Peer == StartTable) 917 { 918 break; 919 } 920 } 921 } 922 } 923 924 925 /******************************************************************************* 926 * 927 * FUNCTION: UtSubtableCacheCalloc 928 * 929 * PARAMETERS: None 930 * 931 * RETURN: Pointer to the buffer. Aborts on allocation failure 932 * 933 * DESCRIPTION: Allocate a subtable object buffer. Bypass the local 934 * dynamic memory manager for performance reasons (This has a 935 * major impact on the speed of the compiler.) 936 * 937 ******************************************************************************/ 938 939 DT_SUBTABLE * 940 UtSubtableCacheCalloc ( 941 void) 942 { 943 ASL_CACHE_INFO *Cache; 944 945 946 if (Gbl_SubtableCacheNext >= Gbl_SubtableCacheLast) 947 { 948 /* Allocate a new buffer */ 949 950 Cache = UtLocalCalloc (sizeof (Cache->Next) + 951 (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE)); 952 953 /* Link new cache buffer to head of list */ 954 955 Cache->Next = Gbl_SubtableCacheList; 956 Gbl_SubtableCacheList = Cache; 957 958 /* Setup cache management pointers */ 959 960 Gbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer); 961 Gbl_SubtableCacheLast = Gbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE; 962 } 963 964 Gbl_SubtableCount++; 965 return (Gbl_SubtableCacheNext++); 966 } 967 968 969 /******************************************************************************* 970 * 971 * FUNCTION: UtFieldCacheCalloc 972 * 973 * PARAMETERS: None 974 * 975 * RETURN: Pointer to the buffer. Aborts on allocation failure 976 * 977 * DESCRIPTION: Allocate a field object buffer. Bypass the local 978 * dynamic memory manager for performance reasons (This has a 979 * major impact on the speed of the compiler.) 980 * 981 ******************************************************************************/ 982 983 DT_FIELD * 984 UtFieldCacheCalloc ( 985 void) 986 { 987 ASL_CACHE_INFO *Cache; 988 989 990 if (Gbl_FieldCacheNext >= Gbl_FieldCacheLast) 991 { 992 /* Allocate a new buffer */ 993 994 Cache = UtLocalCalloc (sizeof (Cache->Next) + 995 (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE)); 996 997 /* Link new cache buffer to head of list */ 998 999 Cache->Next = Gbl_FieldCacheList; 1000 Gbl_FieldCacheList = Cache; 1001 1002 /* Setup cache management pointers */ 1003 1004 Gbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer); 1005 Gbl_FieldCacheLast = Gbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE; 1006 } 1007 1008 Gbl_FieldCount++; 1009 return (Gbl_FieldCacheNext++); 1010 } 1011 1012 1013 /******************************************************************************* 1014 * 1015 * FUNCTION: DtDeleteCaches 1016 * 1017 * PARAMETERS: None 1018 * 1019 * RETURN: None 1020 * 1021 * DESCRIPTION: Delete all local cache buffer blocks 1022 * 1023 ******************************************************************************/ 1024 1025 void 1026 DtDeleteCaches ( 1027 void) 1028 { 1029 UINT32 BufferCount; 1030 ASL_CACHE_INFO *Next; 1031 1032 1033 /* Field cache */ 1034 1035 BufferCount = 0; 1036 while (Gbl_FieldCacheList) 1037 { 1038 Next = Gbl_FieldCacheList->Next; 1039 ACPI_FREE (Gbl_FieldCacheList); 1040 Gbl_FieldCacheList = Next; 1041 BufferCount++; 1042 } 1043 1044 DbgPrint (ASL_DEBUG_OUTPUT, 1045 "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n", 1046 Gbl_FieldCount, ASL_FIELD_CACHE_SIZE, 1047 (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount); 1048 1049 Gbl_FieldCount = 0; 1050 Gbl_FieldCacheNext = NULL; 1051 Gbl_FieldCacheLast = NULL; 1052 1053 /* Subtable cache */ 1054 1055 BufferCount = 0; 1056 while (Gbl_SubtableCacheList) 1057 { 1058 Next = Gbl_SubtableCacheList->Next; 1059 ACPI_FREE (Gbl_SubtableCacheList); 1060 Gbl_SubtableCacheList = Next; 1061 BufferCount++; 1062 } 1063 1064 DbgPrint (ASL_DEBUG_OUTPUT, 1065 "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n", 1066 Gbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE, 1067 (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount); 1068 1069 Gbl_SubtableCount = 0; 1070 Gbl_SubtableCacheNext = NULL; 1071 Gbl_SubtableCacheLast = NULL; 1072 } 1073