utalloc.c revision 82367
1/****************************************************************************** 2 * 3 * Module Name: utalloc - local cache and memory allocation routines 4 * $Revision: 95 $ 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 * 132 * FUNCTION: AcpiUtReleaseToCache 133 * 134 * PARAMETERS: ListId - Memory list/cache ID 135 * Object - The object to be released 136 * 137 * RETURN: None 138 * 139 * DESCRIPTION: Release an object to the specified cache. If cache is full, 140 * the object is deleted. 141 * 142 ******************************************************************************/ 143 144void 145AcpiUtReleaseToCache ( 146 UINT32 ListId, 147 void *Object) 148{ 149 ACPI_MEMORY_LIST *CacheInfo; 150 151 152 /* If walk cache is full, just free this wallkstate object */ 153 154 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 155 if (CacheInfo->CacheDepth >= CacheInfo->MaxCacheDepth) 156 { 157 ACPI_MEM_FREE (Object); 158 ACPI_MEM_TRACKING (CacheInfo->TotalFreed++); 159 } 160 161 /* Otherwise put this object back into the cache */ 162 163 else 164 { 165 AcpiUtAcquireMutex (ACPI_MTX_CACHES); 166 167 /* Mark the object as cached */ 168 169 MEMSET (Object, 0xCA, CacheInfo->ObjectSize); 170 171 /* Put the object at the head of the cache list */ 172 173 * (char **) (((char *) Object) + CacheInfo->LinkOffset) = CacheInfo->ListHead; 174 CacheInfo->ListHead = Object; 175 CacheInfo->CacheDepth++; 176 177 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 178 } 179} 180 181 182/****************************************************************************** 183 * 184 * FUNCTION: AcpiUtAcquireFromCache 185 * 186 * PARAMETERS: ListId - Memory list ID 187 * 188 * RETURN: A requested object. NULL if the object could not be 189 * allocated. 190 * 191 * DESCRIPTION: Get an object from the specified cache. If cache is empty, 192 * the object is allocated. 193 * 194 ******************************************************************************/ 195 196void * 197AcpiUtAcquireFromCache ( 198 UINT32 ListId) 199{ 200 ACPI_MEMORY_LIST *CacheInfo; 201 void *Object; 202 203 204 PROC_NAME ("AcpiUtAcquireFromCache"); 205 206 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 207 AcpiUtAcquireMutex (ACPI_MTX_CACHES); 208 ACPI_MEM_TRACKING (CacheInfo->CacheRequests++); 209 210 /* Check the cache first */ 211 212 if (CacheInfo->ListHead) 213 { 214 /* There is an object available, use it */ 215 216 Object = CacheInfo->ListHead; 217 CacheInfo->ListHead = * (char **) (((char *) Object) + CacheInfo->LinkOffset); 218 219 ACPI_MEM_TRACKING (CacheInfo->CacheHits++); 220 CacheInfo->CacheDepth--; 221 222 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from cache %d\n", Object, ListId)); 223 224 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 225 226 /* Clear (zero) the previously used Object */ 227 228 MEMSET (Object, 0, CacheInfo->ObjectSize); 229 } 230 231 else 232 { 233 /* The cache is empty, create a new object */ 234 235 /* Avoid deadlock with ACPI_MEM_CALLOCATE */ 236 237 AcpiUtReleaseMutex (ACPI_MTX_CACHES); 238 239 Object = ACPI_MEM_CALLOCATE (CacheInfo->ObjectSize); 240 ACPI_MEM_TRACKING (CacheInfo->TotalAllocated++); 241 } 242 243 return (Object); 244} 245 246 247/****************************************************************************** 248 * 249 * FUNCTION: AcpiUtDeleteGenericCache 250 * 251 * PARAMETERS: ListId - Memory list ID 252 * 253 * RETURN: None 254 * 255 * DESCRIPTION: Free all objects within the requested cache. 256 * 257 ******************************************************************************/ 258 259void 260AcpiUtDeleteGenericCache ( 261 UINT32 ListId) 262{ 263 ACPI_MEMORY_LIST *CacheInfo; 264 char *Next; 265 266 267 CacheInfo = &AcpiGbl_MemoryLists[ListId]; 268 while (CacheInfo->ListHead) 269 { 270 /* Delete one cached state object */ 271 272 Next = * (char **) (((char *) CacheInfo->ListHead) + CacheInfo->LinkOffset); 273 ACPI_MEM_FREE (CacheInfo->ListHead); 274 275 CacheInfo->ListHead = Next; 276 CacheInfo->CacheDepth--; 277 } 278} 279 280 281 282#ifdef ACPI_DBG_TRACK_ALLOCATIONS 283 284 285/* 286 * These procedures are used for tracking memory leaks in the subsystem, and 287 * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. 288 * 289 * Each memory allocation is tracked via a doubly linked list. Each 290 * element contains the caller's component, module name, function name, and 291 * line number. AcpiUtAllocate and AcpiUtCallocate call 292 * AcpiUtAddElementToAllocList to add an element to the list; deletion 293 * occurs in the body of AcpiUtFree. 294 */ 295 296 297/******************************************************************************* 298 * 299 * FUNCTION: AcpiUtSearchAllocList 300 * 301 * PARAMETERS: Address - Address of allocated memory 302 * 303 * RETURN: A list element if found; NULL otherwise. 304 * 305 * DESCRIPTION: Searches for an element in the global allocation tracking list. 306 * 307 ******************************************************************************/ 308 309ACPI_DEBUG_MEM_BLOCK * 310AcpiUtSearchAllocList ( 311 UINT32 ListId, 312 void *Address) 313{ 314 ACPI_DEBUG_MEM_BLOCK *Element; 315 316 317 if (ListId > ACPI_MEM_LIST_MAX) 318 { 319 return (NULL); 320 } 321 322 Element = AcpiGbl_MemoryLists[ListId].ListHead; 323 324 /* Search for the address. */ 325 326 while (Element) 327 { 328 if (Element == Address) 329 { 330 return (Element); 331 } 332 333 Element = Element->Next; 334 } 335 336 return (NULL); 337} 338 339 340/******************************************************************************* 341 * 342 * FUNCTION: AcpiUtAddElementToAllocList 343 * 344 * PARAMETERS: Address - Address of allocated memory 345 * Size - Size of the allocation 346 * AllocType - MEM_MALLOC or MEM_CALLOC 347 * Component - Component type of caller 348 * Module - Source file name of caller 349 * Line - Line number of caller 350 * 351 * RETURN: None. 352 * 353 * DESCRIPTION: Inserts an element into the global allocation tracking list. 354 * 355 ******************************************************************************/ 356 357ACPI_STATUS 358AcpiUtAddElementToAllocList ( 359 UINT32 ListId, 360 ACPI_DEBUG_MEM_BLOCK *Address, 361 UINT32 Size, 362 UINT8 AllocType, 363 UINT32 Component, 364 NATIVE_CHAR *Module, 365 UINT32 Line) 366{ 367 ACPI_MEMORY_LIST *MemList; 368 ACPI_DEBUG_MEM_BLOCK *Element; 369 ACPI_STATUS Status = AE_OK; 370 371 372 FUNCTION_TRACE_PTR ("UtAddElementToAllocList", Address); 373 374 375 if (ListId > ACPI_MEM_LIST_MAX) 376 { 377 return_ACPI_STATUS (AE_BAD_PARAMETER); 378 } 379 380 MemList = &AcpiGbl_MemoryLists[ListId]; 381 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 382 383 /* 384 * Search list for this address to make sure it is not already on the list. 385 * This will catch several kinds of problems. 386 */ 387 388 Element = AcpiUtSearchAllocList (ListId, Address); 389 if (Element) 390 { 391 REPORT_ERROR (("UtAddElementToAllocList: Address already present in list! (%p)\n", 392 Address)); 393 394 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Element %p Address %p\n", Element, Address)); 395 396 goto UnlockAndExit; 397 } 398 399 /* Fill in the instance data. */ 400 401 Address->Size = Size; 402 Address->AllocType = AllocType; 403 Address->Component = Component; 404 Address->Line = Line; 405 406 STRNCPY (Address->Module, Module, MAX_MODULE_NAME); 407 408 /* Insert at list head */ 409 410 if (MemList->ListHead) 411 { 412 ((ACPI_DEBUG_MEM_BLOCK *)(MemList->ListHead))->Previous = Address; 413 } 414 415 Address->Next = MemList->ListHead; 416 Address->Previous = NULL; 417 418 MemList->ListHead = Address; 419 420 421UnlockAndExit: 422 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 423 return_ACPI_STATUS (Status); 424} 425 426 427/******************************************************************************* 428 * 429 * FUNCTION: AcpiUtDeleteElementFromAllocList 430 * 431 * PARAMETERS: Address - Address of allocated memory 432 * Component - Component type of caller 433 * Module - Source file name of caller 434 * Line - Line number of caller 435 * 436 * RETURN: 437 * 438 * DESCRIPTION: Deletes an element from the global allocation tracking list. 439 * 440 ******************************************************************************/ 441 442ACPI_STATUS 443AcpiUtDeleteElementFromAllocList ( 444 UINT32 ListId, 445 ACPI_DEBUG_MEM_BLOCK *Address, 446 UINT32 Component, 447 NATIVE_CHAR *Module, 448 UINT32 Line) 449{ 450 ACPI_MEMORY_LIST *MemList; 451 452 453 FUNCTION_TRACE ("UtDeleteElementFromAllocList"); 454 455 456 if (ListId > ACPI_MEM_LIST_MAX) 457 { 458 return_ACPI_STATUS (AE_BAD_PARAMETER); 459 } 460 461 MemList = &AcpiGbl_MemoryLists[ListId]; 462 if (NULL == MemList->ListHead) 463 { 464 /* No allocations! */ 465 466 _REPORT_ERROR (Module, Line, Component, 467 ("UtDeleteElementFromAllocList: Empty allocation list, nothing to free!\n")); 468 469 return_ACPI_STATUS (AE_OK); 470 } 471 472 473 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 474 475 /* Unlink */ 476 477 if (Address->Previous) 478 { 479 (Address->Previous)->Next = Address->Next; 480 } 481 else 482 { 483 MemList->ListHead = Address->Next; 484 } 485 486 if (Address->Next) 487 { 488 (Address->Next)->Previous = Address->Previous; 489 } 490 491 492 /* Mark the segment as deleted */ 493 494 MEMSET (&Address->UserSpace, 0xEA, Address->Size); 495 496 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing size %X\n", Address->Size)); 497 498 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 499 return_ACPI_STATUS (AE_OK); 500} 501 502 503/******************************************************************************* 504 * 505 * FUNCTION: AcpiUtDumpAllocationInfo 506 * 507 * PARAMETERS: 508 * 509 * RETURN: None 510 * 511 * DESCRIPTION: Print some info about the outstanding allocations. 512 * 513 ******************************************************************************/ 514 515void 516AcpiUtDumpAllocationInfo ( 517 void) 518{ 519/* 520 ACPI_MEMORY_LIST *MemList; 521*/ 522 523 FUNCTION_TRACE ("UtDumpAllocationInfo"); 524 525/* 526 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 527 ("%30s: %4d (%3d Kb)\n", "Current allocations", 528 MemList->CurrentCount, 529 ROUND_UP_TO_1K (MemList->CurrentSize))); 530 531 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 532 ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", 533 MemList->MaxConcurrentCount, 534 ROUND_UP_TO_1K (MemList->MaxConcurrentSize))); 535 536 537 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 538 ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", 539 RunningObjectCount, 540 ROUND_UP_TO_1K (RunningObjectSize))); 541 542 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 543 ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", 544 RunningAllocCount, 545 ROUND_UP_TO_1K (RunningAllocSize))); 546 547 548 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 549 ("%30s: %4d (%3d Kb)\n", "Current Nodes", 550 AcpiGbl_CurrentNodeCount, 551 ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize))); 552 553 ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, 554 ("%30s: %4d (%3d Kb)\n", "Max Nodes", 555 AcpiGbl_MaxConcurrentNodeCount, 556 ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount * sizeof (ACPI_NAMESPACE_NODE))))); 557*/ 558 return_VOID; 559} 560 561 562/******************************************************************************* 563 * 564 * FUNCTION: AcpiUtDumpCurrentAllocations 565 * 566 * PARAMETERS: Component - Component(s) to dump info for. 567 * Module - Module to dump info for. NULL means all. 568 * 569 * RETURN: None 570 * 571 * DESCRIPTION: Print a list of all outstanding allocations. 572 * 573 ******************************************************************************/ 574 575void 576AcpiUtDumpCurrentAllocations ( 577 UINT32 Component, 578 NATIVE_CHAR *Module) 579{ 580 ACPI_DEBUG_MEM_BLOCK *Element; 581 UINT32 i; 582 583 584 FUNCTION_TRACE ("UtDumpCurrentAllocations"); 585 586 Element = AcpiGbl_MemoryLists[0].ListHead; 587 588 if (Element == NULL) 589 { 590 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 591 "No outstanding allocations.\n")); 592 return_VOID; 593 } 594 595 596 /* 597 * Walk the allocation list. 598 */ 599 AcpiUtAcquireMutex (ACPI_MTX_MEMORY); 600 601 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 602 "Outstanding allocations:\n")); 603 604 for (i = 1; ; i++) /* Just a counter */ 605 { 606 if ((Element->Component & Component) && 607 ((Module == NULL) || (0 == STRCMP (Module, Element->Module)))) 608 { 609 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 610 "%p Len %04lX %9.9s-%ld", 611 &Element->UserSpace, Element->Size, Element->Module, 612 Element->Line)); 613 614 /* Most of the elements will be internal objects. */ 615 616 switch (((ACPI_OPERAND_OBJECT *) 617 (&Element->UserSpace))->Common.DataType) 618 { 619 case ACPI_DESC_TYPE_INTERNAL: 620 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ALLOCATIONS, 621 " ObjType %s", 622 AcpiUtGetTypeName (((ACPI_OPERAND_OBJECT *)(&Element->UserSpace))->Common.Type))); 623 break; 624 625 case ACPI_DESC_TYPE_PARSER: 626 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ALLOCATIONS, 627 " ParseObj Opcode %04X", 628 ((ACPI_PARSE_OBJECT *)(&Element->UserSpace))->Opcode)); 629 break; 630 631 case ACPI_DESC_TYPE_NAMED: 632 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ALLOCATIONS, 633 " Node %4.4s", 634 &((ACPI_NAMESPACE_NODE *)(&Element->UserSpace))->Name)); 635 break; 636 637 case ACPI_DESC_TYPE_STATE: 638 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ALLOCATIONS, 639 " StateObj")); 640 break; 641 } 642 643 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ALLOCATIONS, "\n")); 644 } 645 646 if (Element->Next == NULL) 647 { 648 break; 649 } 650 651 Element = Element->Next; 652 } 653 654 AcpiUtReleaseMutex (ACPI_MTX_MEMORY); 655 656 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, 657 "Total number of unfreed allocations = %d(%X)\n", i,i)); 658 659 660 return_VOID; 661 662} 663 664 665/******************************************************************************* 666 * 667 * FUNCTION: AcpiUtAllocate 668 * 669 * PARAMETERS: Size - Size of the allocation 670 * Component - Component type of caller 671 * Module - Source file name of caller 672 * Line - Line number of caller 673 * 674 * RETURN: Address of the allocated memory on success, NULL on failure. 675 * 676 * DESCRIPTION: The subsystem's equivalent of malloc. 677 * 678 ******************************************************************************/ 679 680void * 681AcpiUtAllocate ( 682 UINT32 Size, 683 UINT32 Component, 684 NATIVE_CHAR *Module, 685 UINT32 Line) 686{ 687 ACPI_DEBUG_MEM_BLOCK *Address; 688 ACPI_STATUS Status; 689 690 691 FUNCTION_TRACE_U32 ("AcpiUtAllocate", Size); 692 693 694 /* Check for an inadvertent size of zero bytes */ 695 696 if (!Size) 697 { 698 _REPORT_ERROR (Module, Line, Component, 699 ("UtAllocate: Attempt to allocate zero bytes\n")); 700 Size = 1; 701 } 702 703 Address = AcpiOsAllocate (Size + sizeof (ACPI_DEBUG_MEM_BLOCK)); 704 if (!Address) 705 { 706 /* Report allocation error */ 707 708 _REPORT_ERROR (Module, Line, Component, 709 ("UtAllocate: Could not allocate size %X\n", Size)); 710 711 return_PTR (NULL); 712 } 713 714 Status = AcpiUtAddElementToAllocList (ACPI_MEM_LIST_GLOBAL, Address, Size, 715 MEM_MALLOC, Component, Module, Line); 716 if (ACPI_FAILURE (Status)) 717 { 718 AcpiOsFree (Address); 719 return_PTR (NULL); 720 } 721 722 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalAllocated++; 723 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize += Size; 724 725 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", Address, Size)); 726 727 return_PTR ((void *) &Address->UserSpace); 728} 729 730 731/******************************************************************************* 732 * 733 * FUNCTION: AcpiUtCallocate 734 * 735 * PARAMETERS: Size - Size of the allocation 736 * Component - Component type of caller 737 * Module - Source file name of caller 738 * Line - Line number of caller 739 * 740 * RETURN: Address of the allocated memory on success, NULL on failure. 741 * 742 * DESCRIPTION: Subsystem equivalent of calloc. 743 * 744 ******************************************************************************/ 745 746void * 747AcpiUtCallocate ( 748 UINT32 Size, 749 UINT32 Component, 750 NATIVE_CHAR *Module, 751 UINT32 Line) 752{ 753 ACPI_DEBUG_MEM_BLOCK *Address; 754 ACPI_STATUS Status; 755 756 757 FUNCTION_TRACE_U32 ("AcpiUtCallocate", Size); 758 759 760 /* Check for an inadvertent size of zero bytes */ 761 762 if (!Size) 763 { 764 _REPORT_ERROR (Module, Line, Component, 765 ("UtCallocate: Attempt to allocate zero bytes\n")); 766 return_PTR (NULL); 767 } 768 769 770 Address = AcpiOsCallocate (Size + sizeof (ACPI_DEBUG_MEM_BLOCK)); 771 if (!Address) 772 { 773 /* Report allocation error */ 774 775 _REPORT_ERROR (Module, Line, Component, 776 ("UtCallocate: Could not allocate size %X\n", Size)); 777 return_PTR (NULL); 778 } 779 780 Status = AcpiUtAddElementToAllocList (ACPI_MEM_LIST_GLOBAL, Address, Size, 781 MEM_CALLOC, Component, Module, Line); 782 if (ACPI_FAILURE (Status)) 783 { 784 AcpiOsFree (Address); 785 return_PTR (NULL); 786 } 787 788 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalAllocated++; 789 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize += Size; 790 791 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", Address, Size)); 792 return_PTR ((void *) &Address->UserSpace); 793} 794 795 796/******************************************************************************* 797 * 798 * FUNCTION: AcpiUtFree 799 * 800 * PARAMETERS: Address - Address of the memory to deallocate 801 * Component - Component type of caller 802 * Module - Source file name of caller 803 * Line - Line number of caller 804 * 805 * RETURN: None 806 * 807 * DESCRIPTION: Frees the memory at Address 808 * 809 ******************************************************************************/ 810 811void 812AcpiUtFree ( 813 void *Address, 814 UINT32 Component, 815 NATIVE_CHAR *Module, 816 UINT32 Line) 817{ 818 ACPI_DEBUG_MEM_BLOCK *DebugBlock; 819 820 821 FUNCTION_TRACE_PTR ("AcpiUtFree", Address); 822 823 824 if (NULL == Address) 825 { 826 _REPORT_ERROR (Module, Line, Component, 827 ("AcpiUtFree: Trying to delete a NULL address\n")); 828 829 return_VOID; 830 } 831 832 DebugBlock = (ACPI_DEBUG_MEM_BLOCK *) 833 (((char *) Address) - sizeof (ACPI_DEBUG_MEM_HEADER)); 834 835 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].TotalFreed++; 836 AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].CurrentTotalSize -= DebugBlock->Size; 837 838 AcpiUtDeleteElementFromAllocList (ACPI_MEM_LIST_GLOBAL, DebugBlock, 839 Component, Module, Line); 840 AcpiOsFree (DebugBlock); 841 842 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed\n", Address)); 843 844 return_VOID; 845} 846 847#endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */ 848 849