utalloc.c revision 87031
1/****************************************************************************** 2 * 3 * Module Name: utalloc - local cache and memory allocation routines 4 * $Revision: 109 $ 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117#define __UTALLOC_C__ 118 119#include "acpi.h" 120#include "acparser.h" 121#include "acinterp.h" 122#include "acnamesp.h" 123#include "acglobal.h" 124 125#define _COMPONENT ACPI_UTILITIES 126 MODULE_NAME ("utalloc") 127 128 129/****************************************************************************** 130 * 131 * FUNCTION: AcpiUtReleaseToCache 132 * 133 * PARAMETERS: ListId - Memory list/cache ID 134 * Object - The object to be released 135 * 136 * RETURN: None 137 * 138 * DESCRIPTION: Release an object to the specified cache. If cache is full, 139 * the object is deleted. 140 * 141 ******************************************************************************/ 142 143void 144AcpiUtReleaseToCache ( 145 UINT32 ListId, 146 void *Object) 147{ 148 ACPI_MEMORY_LIST *CacheInfo; 149 150 151 FUNCTION_ENTRY (); 152 153 154 /* If walk cache is full, just free this wallkstate object */ 155 156 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 157 if (CacheInfo->CacheDepth >= CacheInfo->MaxCacheDepth) 158 { 159 ACPI_MEM_FREE (Object); 160 ACPI_MEM_TRACKING (CacheInfo->TotalFreed++); 161 } 162 163 /* Otherwise put this object back into the cache */ 164 165 else 166 { 167 AcpiUtAcquireMutex (ACPI_MTX_CACHES); 168 169 /* Mark the object as cached */ 170 171 MEMSET (Object, 0xCA, CacheInfo->ObjectSize); 172 ((ACPI_OPERAND_OBJECT *) Object)->Common.DataType = ACPI_CACHED_OBJECT; 173 174 /* Put the object at the head of the cache list */ 175 176 * (char **) (((char *) Object) + CacheInfo->LinkOffset) = CacheInfo->ListHead; 177 CacheInfo->ListHead = Object; 178 CacheInfo->CacheDepth++; 179 180 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 181 } 182} 183 184 185/****************************************************************************** 186 * 187 * FUNCTION: AcpiUtAcquireFromCache 188 * 189 * PARAMETERS: ListId - Memory list ID 190 * 191 * RETURN: A requested object. NULL if the object could not be 192 * allocated. 193 * 194 * DESCRIPTION: Get an object from the specified cache. If cache is empty, 195 * the object is allocated. 196 * 197 ******************************************************************************/ 198 199void * 200AcpiUtAcquireFromCache ( 201 UINT32 ListId) 202{ 203 ACPI_MEMORY_LIST *CacheInfo; 204 void *Object; 205 206 207 PROC_NAME ("UtAcquireFromCache"); 208 209 210 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 211 AcpiUtAcquireMutex (ACPI_MTX_CACHES); 212 ACPI_MEM_TRACKING (CacheInfo->CacheRequests++); 213 214 /* Check the cache first */ 215 216 if (CacheInfo->ListHead) 217 { 218 /* There is an object available, use it */ 219 220 Object = CacheInfo->ListHead; 221 CacheInfo->ListHead = * (char **) (((char *) Object) + CacheInfo->LinkOffset); 222 223 ACPI_MEM_TRACKING (CacheInfo->CacheHits++); 224 CacheInfo->CacheDepth--; 225 226#ifdef ACPI_DBG_TRACK_ALLOCATIONS 227 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n", 228 Object, AcpiGbl_MemoryLists[ListId].ListName)); 229#endif 230 231 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 232 233 /* Clear (zero) the previously used Object */ 234 235 MEMSET (Object, 0, CacheInfo->ObjectSize); 236 } 237 238 else 239 { 240 /* The cache is empty, create a new object */ 241 242 /* Avoid deadlock with ACPI_MEM_CALLOCATE */ 243 244 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 245 246 Object = ACPI_MEM_CALLOCATE (CacheInfo->ObjectSize); 247 ACPI_MEM_TRACKING (CacheInfo->TotalAllocated++); 248 } 249 250 return (Object); 251} 252 253 254/****************************************************************************** 255 * 256 * FUNCTION: AcpiUtDeleteGenericCache 257 * 258 * PARAMETERS: ListId - Memory list ID 259 * 260 * RETURN: None 261 * 262 * DESCRIPTION: Free all objects within the requested cache. 263 * 264 ******************************************************************************/ 265 266void 267AcpiUtDeleteGenericCache ( 268 UINT32 ListId) 269{ 270 ACPI_MEMORY_LIST *CacheInfo; 271 char *Next; 272 273 274 FUNCTION_ENTRY (); 275 276 277 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 278 while (CacheInfo->ListHead) 279 { 280 /* Delete one cached state object */ 281 282 Next = * (char **) (((char *) CacheInfo->ListHead) + CacheInfo->LinkOffset); 283 ACPI_MEM_FREE (CacheInfo->ListHead); 284 285 CacheInfo->ListHead = Next; 286 CacheInfo->CacheDepth--; 287 } 288} 289 290 291#ifdef ACPI_DBG_TRACK_ALLOCATIONS 292 293 294/* 295 * These procedures are used for tracking memory leaks in the subsystem, and 296 * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. 297 * 298 * Each memory allocation is tracked via a doubly linked list. Each 299 * element contains the caller's component, module name, function name, and 300 * line number. AcpiUtAllocate and AcpiUtCallocate call 301 * AcpiUtTrackAllocation to add an element to the list; deletion 302 * occurs in the body of AcpiUtFree. 303 */ 304 305 306/******************************************************************************* 307 * 308 * FUNCTION: AcpiUtFindAllocation 309 * 310 * PARAMETERS: Address - Address of allocated memory 311 * 312 * RETURN: A list element if found; NULL otherwise. 313 * 314 * DESCRIPTION: Searches for an element in the global allocation tracking list. 315 * 316 ******************************************************************************/ 317 318ACPI_DEBUG_MEM_BLOCK * 319AcpiUtFindAllocation ( 320 UINT32 ListId, 321 void *Address) 322{ 323 ACPI_DEBUG_MEM_BLOCK *Element; 324 325 326 FUNCTION_ENTRY (); 327 328 329 if (ListId > ACPI_MEM_LIST_MAX) 330 { 331 return (NULL); 332 } 333 334 Element = AcpiGbl_MemoryLists[ListId].ListHead; 335 336 /* Search for the address. */ 337 338 while (Element) 339 { 340 if (Element == Address) 341 { 342 return (Element); 343 } 344 345 Element = Element->Next; 346 } 347 348 return (NULL); 349} 350 351 352/******************************************************************************* 353 * 354 * FUNCTION: AcpiUtTrackAllocation 355 * 356 * PARAMETERS: Address - Address of allocated memory 357 * Size - Size of the allocation 358 * AllocType - MEM_MALLOC or MEM_CALLOC 359 * Component - Component type of caller 360 * Module - Source file name of caller 361 * Line - Line number of caller 362 * 363 * RETURN: None. 364 * 365 * DESCRIPTION: Inserts an element into the global allocation tracking list. 366 * 367 ******************************************************************************/ 368 369ACPI_STATUS 370AcpiUtTrackAllocation ( 371 UINT32 ListId, 372 ACPI_DEBUG_MEM_BLOCK *Address, 373 UINT32 Size, 374 UINT8 AllocType, 375 UINT32 Component, 376 NATIVE_CHAR *Module, 377 UINT32 Line) 378{ 379 ACPI_MEMORY_LIST *MemList; 380 ACPI_DEBUG_MEM_BLOCK *Element; 381 ACPI_STATUS Status = AE_OK; 382 383 384 FUNCTION_TRACE_PTR ("UtTrackAllocation", Address); 385 386 387 if (ListId > ACPI_MEM_LIST_MAX) 388 { 389 return_ACPI_STATUS (AE_BAD_PARAMETER); 390 } 391 392 MemList = &AcpiGbl_MemoryLists[ListId]; 393 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 394 395 /* 396 * Search list for this address to make sure it is not already on the list. 397 * This will catch several kinds of problems. 398 */ 399 400 Element = AcpiUtFindAllocation (ListId, Address); 401 if (Element) 402 { 403 REPORT_ERROR (("UtTrackAllocation: Address already present in list! (%p)\n", 404 Address)); 405 406 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Element %p Address %p\n", Element, Address)); 407 408 goto UnlockAndExit; 409 } 410 411 /* Fill in the instance data. */ 412 413 Address->Size = Size; 414 Address->AllocType = AllocType; 415 Address->Component = Component; 416 Address->Line = Line; 417 418 STRNCPY (Address->Module, Module, MAX_MODULE_NAME); 419 420 /* Insert at list head */ 421 422 if (MemList->ListHead) 423 { 424 ((ACPI_DEBUG_MEM_BLOCK *)(MemList->ListHead))->Previous = Address; 425 } 426 427 Address->Next = MemList->ListHead; 428 Address->Previous = NULL; 429 430 MemList->ListHead = Address; 431 432 433UnlockAndExit: 434 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 435 return_ACPI_STATUS (Status); 436} 437 438 439/******************************************************************************* 440 * 441 * FUNCTION: AcpiUtRemoveAllocation 442 * 443 * PARAMETERS: Address - Address of allocated memory 444 * Component - Component type of caller 445 * Module - Source file name of caller 446 * Line - Line number of caller 447 * 448 * RETURN: 449 * 450 * DESCRIPTION: Deletes an element from the global allocation tracking list. 451 * 452 ******************************************************************************/ 453 454ACPI_STATUS 455AcpiUtRemoveAllocation ( 456 UINT32 ListId, 457 ACPI_DEBUG_MEM_BLOCK *Address, 458 UINT32 Component, 459 NATIVE_CHAR *Module, 460 UINT32 Line) 461{ 462 ACPI_MEMORY_LIST *MemList; 463 464 465 FUNCTION_TRACE ("UtRemoveAllocation"); 466 467 468 if (ListId > ACPI_MEM_LIST_MAX) 469 { 470 return_ACPI_STATUS (AE_BAD_PARAMETER); 471 } 472 473 MemList = &AcpiGbl_MemoryLists[ListId]; 474 if (NULL == MemList->ListHead) 475 { 476 /* No allocations! */ 477 478 _REPORT_ERROR (Module, Line, Component, 479 ("UtRemoveAllocation: Empty allocation list, nothing to free!\n")); 480 481 return_ACPI_STATUS (AE_OK); 482 } 483 484 485 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 486 487 /* Unlink */ 488 489 if (Address->Previous) 490 { 491 (Address->Previous)->Next = Address->Next; 492 } 493 else 494 { 495 MemList->ListHead = Address->Next; 496 } 497 498 if (Address->Next) 499 { 500 (Address->Next)->Previous = Address->Previous; 501 } 502 503 504 /* Mark the segment as deleted */ 505 506 MEMSET (&Address->UserSpace, 0xEA, Address->Size); 507 508 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing size %X\n", Address->Size)); 509 510 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 511 return_ACPI_STATUS (AE_OK); 512} 513 514 515/******************************************************************************* 516 * 517 * FUNCTION: AcpiUtDumpAllocationInfo 518 * 519 * PARAMETERS: 520 * 521 * RETURN: None 522 * 523 * DESCRIPTION: Print some info about the outstanding allocations. 524 * 525 ******************************************************************************/ 526 527void 528AcpiUtDumpAllocationInfo ( 529 void) 530{ 531/* 532 ACPI_MEMORY_LIST *MemList; 533*/ 534 535 FUNCTION_TRACE ("UtDumpAllocationInfo"); 536 537/* 538 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 539 ("%30s: %4d (%3d Kb)\n", "Current allocations", 540 MemList->CurrentCount, 541 ROUND_UP_TO_1K (MemList->CurrentSize))); 542 543 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 544 ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", 545 MemList->MaxConcurrentCount, 546 ROUND_UP_TO_1K (MemList->MaxConcurrentSize))); 547 548 549 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 550 ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", 551 RunningObjectCount, 552 ROUND_UP_TO_1K (RunningObjectSize))); 553 554 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 555 ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", 556 RunningAllocCount, 557 ROUND_UP_TO_1K (RunningAllocSize))); 558 559 560 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 561 ("%30s: %4d (%3d Kb)\n", "Current Nodes", 562 AcpiGbl_CurrentNodeCount, 563 ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize))); 564 565 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 566 ("%30s: %4d (%3d Kb)\n", "Max Nodes", 567 AcpiGbl_MaxConcurrentNodeCount, 568 ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount * sizeof (ACPI_NAMESPACE_NODE))))); 569*/ 570 return_VOID; 571} 572 573 574/******************************************************************************* 575 * 576 * FUNCTION: AcpiUtDumpAllocations 577 * 578 * PARAMETERS: Component - Component(s) to dump info for. 579 * Module - Module to dump info for. NULL means all. 580 * 581 * RETURN: None 582 * 583 * DESCRIPTION: Print a list of all outstanding allocations. 584 * 585 ******************************************************************************/ 586 587void 588AcpiUtDumpAllocations ( 589 UINT32 Component, 590 NATIVE_CHAR *Module) 591{ 592 ACPI_DEBUG_MEM_BLOCK *Element; 593 UINT32 NumOutstanding = 0; 594 595 596 FUNCTION_TRACE ("UtDumpAllocations"); 597 598 599 /* 600 * Walk the allocation list. 601 */ 602 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 603 604 Element = AcpiGbl_MemoryLists[0].ListHead; 605 while (Element) 606 { 607 if ((Element->Component & Component) && 608 ((Module == NULL) || (0 == STRCMP (Module, Element->Module)))) 609 { 610 /* Ignore allocated objects that are in a cache */ 611 612 if (((ACPI_OPERAND_OBJECT *)(&Element->UserSpace))->Common.Type != ACPI_CACHED_OBJECT) 613 { 614 AcpiOsPrintf ("%p Len %04X %9.9s-%d ", 615 &Element->UserSpace, Element->Size, Element->Module, 616 Element->Line); 617 618 /* Most of the elements will be internal objects. */ 619 620 switch (((ACPI_OPERAND_OBJECT *) 621 (&Element->UserSpace))->Common.DataType) 622 { 623 case ACPI_DESC_TYPE_INTERNAL: 624 AcpiOsPrintf ("ObjType %12.12s R%d", 625 AcpiUtGetTypeName (((ACPI_OPERAND_OBJECT *)(&Element->UserSpace))->Common.Type), 626 ((ACPI_OPERAND_OBJECT *)(&Element->UserSpace))->Common.ReferenceCount); 627 break; 628 629 case ACPI_DESC_TYPE_PARSER: 630 AcpiOsPrintf ("ParseObj Opcode %04X", 631 ((ACPI_PARSE_OBJECT *)(&Element->UserSpace))->Opcode); 632 break; 633 634 case ACPI_DESC_TYPE_NAMED: 635 AcpiOsPrintf ("Node %4.4s", 636 (char *) &((ACPI_NAMESPACE_NODE *)(&Element->UserSpace))->Name); 637 break; 638 639 case ACPI_DESC_TYPE_STATE: 640 AcpiOsPrintf ("Untyped StateObj"); 641 break; 642 643 case ACPI_DESC_TYPE_STATE_UPDATE: 644 AcpiOsPrintf ("UPDATE StateObj"); 645 break; 646 647 case ACPI_DESC_TYPE_STATE_PACKAGE: 648 AcpiOsPrintf ("PACKAGE StateObj"); 649 break; 650 651 case ACPI_DESC_TYPE_STATE_CONTROL: 652 AcpiOsPrintf ("CONTROL StateObj"); 653 break; 654 655 case ACPI_DESC_TYPE_STATE_RPSCOPE: 656 AcpiOsPrintf ("ROOT-PARSE-SCOPE StateObj"); 657 break; 658 659 case ACPI_DESC_TYPE_STATE_PSCOPE: 660 AcpiOsPrintf ("PARSE-SCOPE StateObj"); 661 break; 662 663 case ACPI_DESC_TYPE_STATE_WSCOPE: 664 AcpiOsPrintf ("WALK-SCOPE StateObj"); 665 break; 666 667 case ACPI_DESC_TYPE_STATE_RESULT: 668 AcpiOsPrintf ("RESULT StateObj"); 669 break; 670 671 case ACPI_DESC_TYPE_STATE_NOTIFY: 672 AcpiOsPrintf ("NOTIFY StateObj"); 673 break; 674 675 case ACPI_DESC_TYPE_STATE_THREAD: 676 AcpiOsPrintf ("THREAD StateObj"); 677 break; 678 } 679 680 AcpiOsPrintf ( "\n"); 681 NumOutstanding++; 682 } 683 } 684 Element = Element->Next; 685 } 686 687 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 688 689 /* Print summary */ 690 691 if (!NumOutstanding) 692 { 693 ACPI_DEBUG_PRINT ((ACPI_DB_OK, 694 "No outstanding allocations.\n")); 695 } 696 else 697 { 698 ACPI_DEBUG_PRINT ((ACPI_DB_OK, 699 "%d(%X) Outstanding allocations\n", 700 NumOutstanding, NumOutstanding)); 701 } 702 703 return_VOID; 704} 705 706 707/******************************************************************************* 708 * 709 * FUNCTION: AcpiUtAllocate 710 * 711 * PARAMETERS: Size - Size of the allocation 712 * Component - Component type of caller 713 * Module - Source file name of caller 714 * Line - Line number of caller 715 * 716 * RETURN: Address of the allocated memory on success, NULL on failure. 717 * 718 * DESCRIPTION: The subsystem's equivalent of malloc. 719 * 720 ******************************************************************************/ 721 722void * 723AcpiUtAllocate ( 724 UINT32 Size, 725 UINT32 Component, 726 NATIVE_CHAR *Module, 727 UINT32 Line) 728{ 729 ACPI_DEBUG_MEM_BLOCK *Address; 730 ACPI_STATUS Status; 731 732 733 FUNCTION_TRACE_U32 ("UtAllocate", Size); 734 735 736 /* Check for an inadvertent size of zero bytes */ 737 738 if (!Size) 739 { 740 _REPORT_ERROR (Module, Line, Component, 741 ("UtAllocate: Attempt to allocate zero bytes\n")); 742 Size = 1; 743 } 744 745 Address = AcpiOsAllocate (Size + sizeof (ACPI_DEBUG_MEM_BLOCK)); 746 if (!Address) 747 { 748 /* Report allocation error */ 749 750 _REPORT_ERROR (Module, Line, Component, 751 ("UtAllocate: Could not allocate size %X\n", Size)); 752 753 return_PTR (NULL); 754 } 755 756 Status = AcpiUtTrackAllocation (ACPI_MEM_LIST_GLOBAL, Address, Size, 757 MEM_MALLOC, Component, Module, Line); 758 if (ACPI_FAILURE (Status)) 759 { 760 AcpiOsFree (Address); 761 return_PTR (NULL); 762 } 763 764 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalAllocated++; 765 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize += Size; 766 767 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", Address, Size)); 768 769 return_PTR ((void *) &Address->UserSpace); 770} 771 772 773/******************************************************************************* 774 * 775 * FUNCTION: AcpiUtCallocate 776 * 777 * PARAMETERS: Size - Size of the allocation 778 * Component - Component type of caller 779 * Module - Source file name of caller 780 * Line - Line number of caller 781 * 782 * RETURN: Address of the allocated memory on success, NULL on failure. 783 * 784 * DESCRIPTION: Subsystem equivalent of calloc. 785 * 786 ******************************************************************************/ 787 788void * 789AcpiUtCallocate ( 790 UINT32 Size, 791 UINT32 Component, 792 NATIVE_CHAR *Module, 793 UINT32 Line) 794{ 795 ACPI_DEBUG_MEM_BLOCK *Address; 796 ACPI_STATUS Status; 797 798 799 FUNCTION_TRACE_U32 ("UtCallocate", Size); 800 801 802 /* Check for an inadvertent size of zero bytes */ 803 804 if (!Size) 805 { 806 _REPORT_ERROR (Module, Line, Component, 807 ("UtCallocate: Attempt to allocate zero bytes\n")); 808 return_PTR (NULL); 809 } 810 811 812 Address = AcpiOsCallocate (Size + sizeof (ACPI_DEBUG_MEM_BLOCK)); 813 if (!Address) 814 { 815 /* Report allocation error */ 816 817 _REPORT_ERROR (Module, Line, Component, 818 ("UtCallocate: Could not allocate size %X\n", Size)); 819 return_PTR (NULL); 820 } 821 822 Status = AcpiUtTrackAllocation (ACPI_MEM_LIST_GLOBAL, Address, Size, 823 MEM_CALLOC, Component, Module, Line); 824 if (ACPI_FAILURE (Status)) 825 { 826 AcpiOsFree (Address); 827 return_PTR (NULL); 828 } 829 830 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalAllocated++; 831 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize += Size; 832 833 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", Address, Size)); 834 return_PTR ((void *) &Address->UserSpace); 835} 836 837 838/******************************************************************************* 839 * 840 * FUNCTION: AcpiUtFree 841 * 842 * PARAMETERS: Address - Address of the memory to deallocate 843 * Component - Component type of caller 844 * Module - Source file name of caller 845 * Line - Line number of caller 846 * 847 * RETURN: None 848 * 849 * DESCRIPTION: Frees the memory at Address 850 * 851 ******************************************************************************/ 852 853void 854AcpiUtFree ( 855 void *Address, 856 UINT32 Component, 857 NATIVE_CHAR *Module, 858 UINT32 Line) 859{ 860 ACPI_DEBUG_MEM_BLOCK *DebugBlock; 861 862 863 FUNCTION_TRACE_PTR ("UtFree", Address); 864 865 866 if (NULL == Address) 867 { 868 _REPORT_ERROR (Module, Line, Component, 869 ("AcpiUtFree: Trying to delete a NULL address\n")); 870 871 return_VOID; 872 } 873 874 DebugBlock = (ACPI_DEBUG_MEM_BLOCK *) 875 (((char *) Address) - sizeof (ACPI_DEBUG_MEM_HEADER)); 876 877 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalFreed++; 878 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize -= DebugBlock->Size; 879 880 AcpiUtRemoveAllocation (ACPI_MEM_LIST_GLOBAL, DebugBlock, 881 Component, Module, Line); 882 AcpiOsFree (DebugBlock); 883 884 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed\n", Address)); 885 886 return_VOID; 887} 888 889#endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */ 890 891