1 /****************************************************************************** 2 * 3 * Module Name: dtutils.c - Utility routines for the data table compiler 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2015, 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 "aslcompiler.h" 45 #include "dtcompiler.h" 46 #include "actables.h" 47 48 #define _COMPONENT DT_COMPILER 49 ACPI_MODULE_NAME ("dtutils") 50 51 /* Local prototypes */ 52 53 static void 54 DtSum ( 55 DT_SUBTABLE *Subtable, 56 void *Context, 57 void *ReturnValue); 58 59 60 /****************************************************************************** 61 * 62 * FUNCTION: DtError 63 * 64 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 65 * MessageId - Index into global message buffer 66 * Op - Parse node where error happened 67 * ExtraMessage - additional error message 68 * 69 * RETURN: None 70 * 71 * DESCRIPTION: Common error interface for data table compiler 72 * 73 *****************************************************************************/ 74 75 void 76 DtError ( 77 UINT8 Level, 78 UINT16 MessageId, 79 DT_FIELD *FieldObject, 80 char *ExtraMessage) 81 { 82 83 /* Check if user wants to ignore this exception */ 84 85 if (AslIsExceptionDisabled (Level, MessageId)) 86 { 87 return; 88 } 89 90 if (FieldObject) 91 { 92 AslCommonError (Level, MessageId, 93 FieldObject->Line, 94 FieldObject->Line, 95 FieldObject->ByteOffset, 96 FieldObject->Column, 97 Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 98 } 99 else 100 { 101 AslCommonError (Level, MessageId, 0, 102 0, 0, 0, 0, ExtraMessage); 103 } 104 } 105 106 107 /****************************************************************************** 108 * 109 * FUNCTION: DtNameError 110 * 111 * PARAMETERS: Level - Seriousness (Warning/error, etc.) 112 * MessageId - Index into global message buffer 113 * Op - Parse node where error happened 114 * ExtraMessage - additional error message 115 * 116 * RETURN: None 117 * 118 * DESCRIPTION: Error interface for named objects 119 * 120 *****************************************************************************/ 121 122 void 123 DtNameError ( 124 UINT8 Level, 125 UINT16 MessageId, 126 DT_FIELD *FieldObject, 127 char *ExtraMessage) 128 { 129 130 switch (Level) 131 { 132 case ASL_WARNING2: 133 case ASL_WARNING3: 134 135 if (Gbl_WarningLevel < Level) 136 { 137 return; 138 } 139 break; 140 141 default: 142 143 break; 144 } 145 146 if (FieldObject) 147 { 148 AslCommonError (Level, MessageId, 149 FieldObject->Line, 150 FieldObject->Line, 151 FieldObject->ByteOffset, 152 FieldObject->NameColumn, 153 Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage); 154 } 155 else 156 { 157 AslCommonError (Level, MessageId, 0, 158 0, 0, 0, 0, ExtraMessage); 159 } 160 } 161 162 163 /******************************************************************************* 164 * 165 * FUNCTION: DtFatal 166 * 167 * PARAMETERS: None 168 * 169 * RETURN: None 170 * 171 * DESCRIPTION: Dump the error log and abort the compiler. Used for serious 172 * compile or I/O errors 173 * 174 ******************************************************************************/ 175 176 void 177 DtFatal ( 178 UINT16 MessageId, 179 DT_FIELD *FieldObject, 180 char *ExtraMessage) 181 { 182 183 DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage); 184 185 /* 186 * TBD: remove this entire function, DtFatal 187 * 188 * We cannot abort the compiler on error, because we may be compiling a 189 * list of files. We must move on to the next file. 190 */ 191 #ifdef __OBSOLETE 192 CmCleanupAndExit (); 193 exit (1); 194 #endif 195 } 196 197 198 /****************************************************************************** 199 * 200 * FUNCTION: DtStrtoul64 201 * 202 * PARAMETERS: String - Null terminated string 203 * ReturnInteger - Where the converted integer is returned 204 * 205 * RETURN: Status 206 * 207 * DESCRIPTION: Simple conversion of a string hex integer constant to unsigned 208 * value. Assumes no leading "0x" for the constant. 209 * 210 * Portability note: The reason this function exists is because a 64-bit 211 * sscanf is not available in all environments. 212 * 213 *****************************************************************************/ 214 215 ACPI_STATUS 216 DtStrtoul64 ( 217 char *String, 218 UINT64 *ReturnInteger) 219 { 220 char *ThisChar = String; 221 UINT32 ThisDigit; 222 UINT64 ReturnValue = 0; 223 int DigitCount = 0; 224 225 226 /* Skip over any white space in the buffer */ 227 228 while ((*ThisChar == ' ') || (*ThisChar == '\t')) 229 { 230 ThisChar++; 231 } 232 233 /* Skip leading zeros */ 234 235 while ((*ThisChar) == '0') 236 { 237 ThisChar++; 238 } 239 240 /* Convert character-by-character */ 241 242 while (*ThisChar) 243 { 244 if (ACPI_IS_DIGIT (*ThisChar)) 245 { 246 /* Convert ASCII 0-9 to Decimal value */ 247 248 ThisDigit = ((UINT8) *ThisChar) - '0'; 249 } 250 else /* Letter */ 251 { 252 ThisDigit = (UINT32) ACPI_TOUPPER (*ThisChar); 253 if (!ACPI_IS_XDIGIT ((char) ThisDigit)) 254 { 255 /* Not A-F */ 256 257 return (AE_BAD_CHARACTER); 258 } 259 260 /* Convert ASCII Hex char (A-F) to value */ 261 262 ThisDigit = (ThisDigit - 'A') + 10; 263 } 264 265 /* Insert the 4-bit hex digit */ 266 267 ReturnValue <<= 4; 268 ReturnValue += ThisDigit; 269 270 ThisChar++; 271 DigitCount++; 272 if (DigitCount > 16) 273 { 274 /* Value is too large (> 64 bits/8 bytes/16 hex digits) */ 275 276 return (AE_LIMIT); 277 } 278 } 279 280 *ReturnInteger = ReturnValue; 281 return (AE_OK); 282 } 283 284 285 /****************************************************************************** 286 * 287 * FUNCTION: DtGetFieldValue 288 * 289 * PARAMETERS: Field - Current field list pointer 290 * 291 * RETURN: Field value 292 * 293 * DESCRIPTION: Get field value 294 * 295 *****************************************************************************/ 296 297 char * 298 DtGetFieldValue ( 299 DT_FIELD *Field) 300 { 301 if (!Field) 302 { 303 return (NULL); 304 } 305 306 return (Field->Value); 307 } 308 309 310 /****************************************************************************** 311 * 312 * FUNCTION: DtGetFieldType 313 * 314 * PARAMETERS: Info - Data table info 315 * 316 * RETURN: Field type 317 * 318 * DESCRIPTION: Get field type 319 * 320 *****************************************************************************/ 321 322 UINT8 323 DtGetFieldType ( 324 ACPI_DMTABLE_INFO *Info) 325 { 326 UINT8 Type; 327 328 329 /* DT_FLAG means that this is the start of a block of flag bits */ 330 /* TBD - we can make these a separate opcode later */ 331 332 if (Info->Flags & DT_FLAG) 333 { 334 return (DT_FIELD_TYPE_FLAGS_INTEGER); 335 } 336 337 /* Type is based upon the opcode for this field in the info table */ 338 339 switch (Info->Opcode) 340 { 341 case ACPI_DMT_FLAG0: 342 case ACPI_DMT_FLAG1: 343 case ACPI_DMT_FLAG2: 344 case ACPI_DMT_FLAG3: 345 case ACPI_DMT_FLAG4: 346 case ACPI_DMT_FLAG5: 347 case ACPI_DMT_FLAG6: 348 case ACPI_DMT_FLAG7: 349 case ACPI_DMT_FLAGS0: 350 case ACPI_DMT_FLAGS1: 351 case ACPI_DMT_FLAGS2: 352 case ACPI_DMT_FLAGS4: 353 354 Type = DT_FIELD_TYPE_FLAG; 355 break; 356 357 case ACPI_DMT_NAME4: 358 case ACPI_DMT_SIG: 359 case ACPI_DMT_NAME6: 360 case ACPI_DMT_NAME8: 361 case ACPI_DMT_STRING: 362 363 Type = DT_FIELD_TYPE_STRING; 364 break; 365 366 case ACPI_DMT_BUFFER: 367 case ACPI_DMT_BUF7: 368 case ACPI_DMT_BUF10: 369 case ACPI_DMT_BUF16: 370 case ACPI_DMT_BUF128: 371 case ACPI_DMT_PCI_PATH: 372 373 Type = DT_FIELD_TYPE_BUFFER; 374 break; 375 376 case ACPI_DMT_GAS: 377 case ACPI_DMT_HESTNTFY: 378 379 Type = DT_FIELD_TYPE_INLINE_SUBTABLE; 380 break; 381 382 case ACPI_DMT_UNICODE: 383 384 Type = DT_FIELD_TYPE_UNICODE; 385 break; 386 387 case ACPI_DMT_UUID: 388 389 Type = DT_FIELD_TYPE_UUID; 390 break; 391 392 case ACPI_DMT_DEVICE_PATH: 393 394 Type = DT_FIELD_TYPE_DEVICE_PATH; 395 break; 396 397 case ACPI_DMT_LABEL: 398 399 Type = DT_FIELD_TYPE_LABEL; 400 break; 401 402 default: 403 404 Type = DT_FIELD_TYPE_INTEGER; 405 break; 406 } 407 408 return (Type); 409 } 410 411 412 /****************************************************************************** 413 * 414 * FUNCTION: DtGetBufferLength 415 * 416 * PARAMETERS: Buffer - List of integers, 417 * for example "10 3A 4F 2E" 418 * 419 * RETURN: Count of integer 420 * 421 * DESCRIPTION: Get length of bytes needed to store the integers 422 * 423 *****************************************************************************/ 424 425 UINT32 426 DtGetBufferLength ( 427 char *Buffer) 428 { 429 UINT32 ByteLength = 0; 430 431 432 while (*Buffer) 433 { 434 if (*Buffer == ' ') 435 { 436 ByteLength++; 437 438 while (*Buffer == ' ') 439 { 440 Buffer++; 441 } 442 } 443 444 Buffer++; 445 } 446 447 return (++ByteLength); 448 } 449 450 451 /****************************************************************************** 452 * 453 * FUNCTION: DtGetFieldLength 454 * 455 * PARAMETERS: Field - Current field 456 * Info - Data table info 457 * 458 * RETURN: Field length 459 * 460 * DESCRIPTION: Get length of bytes needed to compile the field 461 * 462 * Note: This function must remain in sync with AcpiDmDumpTable. 463 * 464 *****************************************************************************/ 465 466 UINT32 467 DtGetFieldLength ( 468 DT_FIELD *Field, 469 ACPI_DMTABLE_INFO *Info) 470 { 471 UINT32 ByteLength = 0; 472 char *Value; 473 474 475 /* Length is based upon the opcode for this field in the info table */ 476 477 switch (Info->Opcode) 478 { 479 case ACPI_DMT_FLAG0: 480 case ACPI_DMT_FLAG1: 481 case ACPI_DMT_FLAG2: 482 case ACPI_DMT_FLAG3: 483 case ACPI_DMT_FLAG4: 484 case ACPI_DMT_FLAG5: 485 case ACPI_DMT_FLAG6: 486 case ACPI_DMT_FLAG7: 487 case ACPI_DMT_FLAGS0: 488 case ACPI_DMT_FLAGS1: 489 case ACPI_DMT_FLAGS2: 490 case ACPI_DMT_FLAGS4: 491 case ACPI_DMT_LABEL: 492 case ACPI_DMT_EXTRA_TEXT: 493 494 ByteLength = 0; 495 break; 496 497 case ACPI_DMT_UINT8: 498 case ACPI_DMT_CHKSUM: 499 case ACPI_DMT_SPACEID: 500 case ACPI_DMT_ACCWIDTH: 501 case ACPI_DMT_IVRS: 502 case ACPI_DMT_GTDT: 503 case ACPI_DMT_MADT: 504 case ACPI_DMT_PCCT: 505 case ACPI_DMT_PMTT: 506 case ACPI_DMT_SRAT: 507 case ACPI_DMT_ASF: 508 case ACPI_DMT_HESTNTYP: 509 case ACPI_DMT_FADTPM: 510 case ACPI_DMT_EINJACT: 511 case ACPI_DMT_EINJINST: 512 case ACPI_DMT_ERSTACT: 513 case ACPI_DMT_ERSTINST: 514 case ACPI_DMT_DMAR_SCOPE: 515 516 ByteLength = 1; 517 break; 518 519 case ACPI_DMT_UINT16: 520 case ACPI_DMT_DMAR: 521 case ACPI_DMT_HEST: 522 case ACPI_DMT_PCI_PATH: 523 524 ByteLength = 2; 525 break; 526 527 case ACPI_DMT_UINT24: 528 529 ByteLength = 3; 530 break; 531 532 case ACPI_DMT_UINT32: 533 case ACPI_DMT_NAME4: 534 case ACPI_DMT_SLIC: 535 case ACPI_DMT_SIG: 536 case ACPI_DMT_LPIT: 537 538 ByteLength = 4; 539 break; 540 541 case ACPI_DMT_UINT40: 542 543 ByteLength = 5; 544 break; 545 546 case ACPI_DMT_UINT48: 547 case ACPI_DMT_NAME6: 548 549 ByteLength = 6; 550 break; 551 552 case ACPI_DMT_UINT56: 553 case ACPI_DMT_BUF7: 554 555 ByteLength = 7; 556 break; 557 558 case ACPI_DMT_UINT64: 559 case ACPI_DMT_NAME8: 560 561 ByteLength = 8; 562 break; 563 564 case ACPI_DMT_STRING: 565 566 Value = DtGetFieldValue (Field); 567 if (Value) 568 { 569 ByteLength = ACPI_STRLEN (Value) + 1; 570 } 571 else 572 { /* At this point, this is a fatal error */ 573 574 sprintf (MsgBuffer, "Expected \"%s\"", Info->Name); 575 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer); 576 return (0); 577 } 578 break; 579 580 case ACPI_DMT_GAS: 581 582 ByteLength = sizeof (ACPI_GENERIC_ADDRESS); 583 break; 584 585 case ACPI_DMT_HESTNTFY: 586 587 ByteLength = sizeof (ACPI_HEST_NOTIFY); 588 break; 589 590 case ACPI_DMT_BUFFER: 591 592 Value = DtGetFieldValue (Field); 593 if (Value) 594 { 595 ByteLength = DtGetBufferLength (Value); 596 } 597 else 598 { /* At this point, this is a fatal error */ 599 600 sprintf (MsgBuffer, "Expected \"%s\"", Info->Name); 601 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer); 602 return (0); 603 } 604 break; 605 606 case ACPI_DMT_BUF10: 607 608 ByteLength = 10; 609 break; 610 611 case ACPI_DMT_BUF16: 612 case ACPI_DMT_UUID: 613 614 ByteLength = 16; 615 break; 616 617 case ACPI_DMT_BUF128: 618 619 ByteLength = 128; 620 break; 621 622 case ACPI_DMT_UNICODE: 623 624 Value = DtGetFieldValue (Field); 625 626 /* TBD: error if Value is NULL? (as below?) */ 627 628 ByteLength = (ACPI_STRLEN (Value) + 1) * sizeof(UINT16); 629 break; 630 631 default: 632 633 DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode"); 634 return (0); 635 } 636 637 return (ByteLength); 638 } 639 640 641 /****************************************************************************** 642 * 643 * FUNCTION: DtSum 644 * 645 * PARAMETERS: DT_WALK_CALLBACK: 646 * Subtable - Subtable 647 * Context - Unused 648 * ReturnValue - Store the checksum of subtable 649 * 650 * RETURN: Status 651 * 652 * DESCRIPTION: Get the checksum of subtable 653 * 654 *****************************************************************************/ 655 656 static void 657 DtSum ( 658 DT_SUBTABLE *Subtable, 659 void *Context, 660 void *ReturnValue) 661 { 662 UINT8 Checksum; 663 UINT8 *Sum = ReturnValue; 664 665 666 Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length); 667 *Sum = (UINT8) (*Sum + Checksum); 668 } 669 670 671 /****************************************************************************** 672 * 673 * FUNCTION: DtSetTableChecksum 674 * 675 * PARAMETERS: ChecksumPointer - Where to return the checksum 676 * 677 * RETURN: None 678 * 679 * DESCRIPTION: Set checksum of the whole data table into the checksum field 680 * 681 *****************************************************************************/ 682 683 void 684 DtSetTableChecksum ( 685 UINT8 *ChecksumPointer) 686 { 687 UINT8 Checksum = 0; 688 UINT8 OldSum; 689 690 691 DtWalkTableTree (Gbl_RootTable, DtSum, NULL, &Checksum); 692 693 OldSum = *ChecksumPointer; 694 Checksum = (UINT8) (Checksum - OldSum); 695 696 /* Compute the final checksum */ 697 698 Checksum = (UINT8) (0 - Checksum); 699 *ChecksumPointer = Checksum; 700 } 701 702 703 /****************************************************************************** 704 * 705 * FUNCTION: DtSetTableLength 706 * 707 * PARAMETERS: None 708 * 709 * RETURN: None 710 * 711 * DESCRIPTION: Walk the subtables and set all the length fields 712 * 713 *****************************************************************************/ 714 715 void 716 DtSetTableLength ( 717 void) 718 { 719 DT_SUBTABLE *ParentTable; 720 DT_SUBTABLE *ChildTable; 721 722 723 ParentTable = Gbl_RootTable; 724 ChildTable = NULL; 725 726 if (!ParentTable) 727 { 728 return; 729 } 730 731 DtSetSubtableLength (ParentTable); 732 733 while (1) 734 { 735 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 736 if (ChildTable) 737 { 738 if (ChildTable->LengthField) 739 { 740 DtSetSubtableLength (ChildTable); 741 } 742 743 if (ChildTable->Child) 744 { 745 ParentTable = ChildTable; 746 ChildTable = NULL; 747 } 748 else 749 { 750 ParentTable->TotalLength += ChildTable->TotalLength; 751 if (ParentTable->LengthField) 752 { 753 DtSetSubtableLength (ParentTable); 754 } 755 } 756 } 757 else 758 { 759 ChildTable = ParentTable; 760 761 if (ChildTable == Gbl_RootTable) 762 { 763 break; 764 } 765 766 ParentTable = DtGetParentSubtable (ParentTable); 767 768 ParentTable->TotalLength += ChildTable->TotalLength; 769 if (ParentTable->LengthField) 770 { 771 DtSetSubtableLength (ParentTable); 772 } 773 } 774 } 775 } 776 777 778 /****************************************************************************** 779 * 780 * FUNCTION: DtWalkTableTree 781 * 782 * PARAMETERS: StartTable - Subtable in the tree where walking begins 783 * UserFunction - Called during the walk 784 * Context - Passed to user function 785 * ReturnValue - The return value of UserFunction 786 * 787 * RETURN: None 788 * 789 * DESCRIPTION: Performs a depth-first walk of the subtable tree 790 * 791 *****************************************************************************/ 792 793 void 794 DtWalkTableTree ( 795 DT_SUBTABLE *StartTable, 796 DT_WALK_CALLBACK UserFunction, 797 void *Context, 798 void *ReturnValue) 799 { 800 DT_SUBTABLE *ParentTable; 801 DT_SUBTABLE *ChildTable; 802 803 804 ParentTable = StartTable; 805 ChildTable = NULL; 806 807 if (!ParentTable) 808 { 809 return; 810 } 811 812 UserFunction (ParentTable, Context, ReturnValue); 813 814 while (1) 815 { 816 ChildTable = DtGetNextSubtable (ParentTable, ChildTable); 817 if (ChildTable) 818 { 819 UserFunction (ChildTable, Context, ReturnValue); 820 821 if (ChildTable->Child) 822 { 823 ParentTable = ChildTable; 824 ChildTable = NULL; 825 } 826 } 827 else 828 { 829 ChildTable = ParentTable; 830 if (ChildTable == Gbl_RootTable) 831 { 832 break; 833 } 834 835 ParentTable = DtGetParentSubtable (ParentTable); 836 837 if (ChildTable->Peer == StartTable) 838 { 839 break; 840 } 841 } 842 } 843 } 844 845 846 /******************************************************************************* 847 * 848 * FUNCTION: UtSubtableCacheCalloc 849 * 850 * PARAMETERS: None 851 * 852 * RETURN: Pointer to the buffer. Aborts on allocation failure 853 * 854 * DESCRIPTION: Allocate a subtable object buffer. Bypass the local 855 * dynamic memory manager for performance reasons (This has a 856 * major impact on the speed of the compiler.) 857 * 858 ******************************************************************************/ 859 860 DT_SUBTABLE * 861 UtSubtableCacheCalloc ( 862 void) 863 { 864 ASL_CACHE_INFO *Cache; 865 866 867 if (Gbl_SubtableCacheNext >= Gbl_SubtableCacheLast) 868 { 869 /* Allocate a new buffer */ 870 871 Cache = UtLocalCalloc (sizeof (Cache->Next) + 872 (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE)); 873 874 /* Link new cache buffer to head of list */ 875 876 Cache->Next = Gbl_SubtableCacheList; 877 Gbl_SubtableCacheList = Cache; 878 879 /* Setup cache management pointers */ 880 881 Gbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer); 882 Gbl_SubtableCacheLast = Gbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE; 883 } 884 885 Gbl_SubtableCount++; 886 return (Gbl_SubtableCacheNext++); 887 } 888 889 890 /******************************************************************************* 891 * 892 * FUNCTION: UtFieldCacheCalloc 893 * 894 * PARAMETERS: None 895 * 896 * RETURN: Pointer to the buffer. Aborts on allocation failure 897 * 898 * DESCRIPTION: Allocate a field object buffer. Bypass the local 899 * dynamic memory manager for performance reasons (This has a 900 * major impact on the speed of the compiler.) 901 * 902 ******************************************************************************/ 903 904 DT_FIELD * 905 UtFieldCacheCalloc ( 906 void) 907 { 908 ASL_CACHE_INFO *Cache; 909 910 911 if (Gbl_FieldCacheNext >= Gbl_FieldCacheLast) 912 { 913 /* Allocate a new buffer */ 914 915 Cache = UtLocalCalloc (sizeof (Cache->Next) + 916 (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE)); 917 918 /* Link new cache buffer to head of list */ 919 920 Cache->Next = Gbl_FieldCacheList; 921 Gbl_FieldCacheList = Cache; 922 923 /* Setup cache management pointers */ 924 925 Gbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer); 926 Gbl_FieldCacheLast = Gbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE; 927 } 928 929 Gbl_FieldCount++; 930 return (Gbl_FieldCacheNext++); 931 } 932 933 934 /******************************************************************************* 935 * 936 * FUNCTION: DtDeleteCaches 937 * 938 * PARAMETERS: None 939 * 940 * RETURN: None 941 * 942 * DESCRIPTION: Delete all local cache buffer blocks 943 * 944 ******************************************************************************/ 945 946 void 947 DtDeleteCaches ( 948 void) 949 { 950 UINT32 BufferCount; 951 ASL_CACHE_INFO *Next; 952 953 954 /* Field cache */ 955 956 BufferCount = 0; 957 while (Gbl_FieldCacheList) 958 { 959 Next = Gbl_FieldCacheList->Next; 960 ACPI_FREE (Gbl_FieldCacheList); 961 Gbl_FieldCacheList = Next; 962 BufferCount++; 963 } 964 965 DbgPrint (ASL_DEBUG_OUTPUT, 966 "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n", 967 Gbl_FieldCount, ASL_FIELD_CACHE_SIZE, 968 (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount); 969 970 Gbl_FieldCount = 0; 971 Gbl_FieldCacheNext = NULL; 972 Gbl_FieldCacheLast = NULL; 973 974 /* Subtable cache */ 975 976 BufferCount = 0; 977 while (Gbl_SubtableCacheList) 978 { 979 Next = Gbl_SubtableCacheList->Next; 980 ACPI_FREE (Gbl_SubtableCacheList); 981 Gbl_SubtableCacheList = Next; 982 BufferCount++; 983 } 984 985 DbgPrint (ASL_DEBUG_OUTPUT, 986 "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n", 987 Gbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE, 988 (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount); 989 990 Gbl_SubtableCount = 0; 991 Gbl_SubtableCacheNext = NULL; 992 Gbl_SubtableCacheLast = NULL; 993 } 994