dbexec.c revision 216471
1/******************************************************************************* 2 * 3 * Module Name: dbexec - debugger control method execution 4 * 5 ******************************************************************************/ 6 7/****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2010, 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 *****************************************************************************/ 115 116 117#include <contrib/dev/acpica/include/acpi.h> 118#include <contrib/dev/acpica/include/accommon.h> 119#include <contrib/dev/acpica/include/acdebug.h> 120#include <contrib/dev/acpica/include/acnamesp.h> 121 122#ifdef ACPI_DEBUGGER 123 124#define _COMPONENT ACPI_CA_DEBUGGER 125 ACPI_MODULE_NAME ("dbexec") 126 127 128static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo; 129 130/* Local prototypes */ 131 132static ACPI_STATUS 133AcpiDbExecuteMethod ( 134 ACPI_DB_METHOD_INFO *Info, 135 ACPI_BUFFER *ReturnObj); 136 137static void 138AcpiDbExecuteSetup ( 139 ACPI_DB_METHOD_INFO *Info); 140 141static UINT32 142AcpiDbGetOutstandingAllocations ( 143 void); 144 145static void ACPI_SYSTEM_XFACE 146AcpiDbMethodThread ( 147 void *Context); 148 149static ACPI_STATUS 150AcpiDbExecutionWalk ( 151 ACPI_HANDLE ObjHandle, 152 UINT32 NestingLevel, 153 void *Context, 154 void **ReturnValue); 155 156 157/******************************************************************************* 158 * 159 * FUNCTION: AcpiDbExecuteMethod 160 * 161 * PARAMETERS: Info - Valid info segment 162 * ReturnObj - Where to put return object 163 * 164 * RETURN: Status 165 * 166 * DESCRIPTION: Execute a control method. 167 * 168 ******************************************************************************/ 169 170static ACPI_STATUS 171AcpiDbExecuteMethod ( 172 ACPI_DB_METHOD_INFO *Info, 173 ACPI_BUFFER *ReturnObj) 174{ 175 ACPI_STATUS Status; 176 ACPI_OBJECT_LIST ParamObjects; 177 ACPI_OBJECT Params[ACPI_METHOD_NUM_ARGS]; 178 ACPI_HANDLE Handle; 179 UINT32 i; 180 ACPI_DEVICE_INFO *ObjInfo; 181 182 183 ACPI_FUNCTION_TRACE (DbExecuteMethod); 184 185 186 if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel) 187 { 188 AcpiOsPrintf ("Warning: debug output is not enabled!\n"); 189 } 190 191 /* Get the NS node, determines existence also */ 192 193 Status = AcpiGetHandle (NULL, Info->Pathname, &Handle); 194 if (ACPI_FAILURE (Status)) 195 { 196 return_ACPI_STATUS (Status); 197 } 198 199 /* Get the object info for number of method parameters */ 200 201 Status = AcpiGetObjectInfo (Handle, &ObjInfo); 202 if (ACPI_FAILURE (Status)) 203 { 204 return_ACPI_STATUS (Status); 205 } 206 207 ParamObjects.Pointer = NULL; 208 ParamObjects.Count = 0; 209 210 if (ObjInfo->Type == ACPI_TYPE_METHOD) 211 { 212 /* Are there arguments to the method? */ 213 214 if (Info->Args && Info->Args[0]) 215 { 216 for (i = 0; Info->Args[i] && i < ACPI_METHOD_NUM_ARGS; i++) 217 { 218 Params[i].Type = ACPI_TYPE_INTEGER; 219 Params[i].Integer.Value = ACPI_STRTOUL (Info->Args[i], NULL, 16); 220 } 221 222 ParamObjects.Pointer = Params; 223 ParamObjects.Count = i; 224 } 225 else 226 { 227 /* Setup default parameters */ 228 229 for (i = 0; i < ObjInfo->ParamCount; i++) 230 { 231 switch (i) 232 { 233 case 0: 234 235 Params[0].Type = ACPI_TYPE_INTEGER; 236 Params[0].Integer.Value = 0x01020304; 237 break; 238 239 case 1: 240 241 Params[1].Type = ACPI_TYPE_STRING; 242 Params[1].String.Length = 12; 243 Params[1].String.Pointer = "AML Debugger"; 244 break; 245 246 default: 247 248 Params[i].Type = ACPI_TYPE_INTEGER; 249 Params[i].Integer.Value = i * (UINT64) 0x1000; 250 break; 251 } 252 } 253 254 ParamObjects.Pointer = Params; 255 ParamObjects.Count = ObjInfo->ParamCount; 256 } 257 } 258 259 ACPI_FREE (ObjInfo); 260 261 /* Prepare for a return object of arbitrary size */ 262 263 ReturnObj->Pointer = AcpiGbl_DbBuffer; 264 ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE; 265 266 /* Do the actual method execution */ 267 268 AcpiGbl_MethodExecuting = TRUE; 269 Status = AcpiEvaluateObject (NULL, 270 Info->Pathname, &ParamObjects, ReturnObj); 271 272 AcpiGbl_CmSingleStep = FALSE; 273 AcpiGbl_MethodExecuting = FALSE; 274 275 if (ACPI_FAILURE (Status)) 276 { 277 ACPI_EXCEPTION ((AE_INFO, Status, 278 "while executing %s from debugger", Info->Pathname)); 279 280 if (Status == AE_BUFFER_OVERFLOW) 281 { 282 ACPI_ERROR ((AE_INFO, 283 "Possible overflow of internal debugger buffer (size 0x%X needed 0x%X)", 284 ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length)); 285 } 286 } 287 288 return_ACPI_STATUS (Status); 289} 290 291 292/******************************************************************************* 293 * 294 * FUNCTION: AcpiDbExecuteSetup 295 * 296 * PARAMETERS: Info - Valid method info 297 * 298 * RETURN: None 299 * 300 * DESCRIPTION: Setup info segment prior to method execution 301 * 302 ******************************************************************************/ 303 304static void 305AcpiDbExecuteSetup ( 306 ACPI_DB_METHOD_INFO *Info) 307{ 308 309 /* Catenate the current scope to the supplied name */ 310 311 Info->Pathname[0] = 0; 312 if ((Info->Name[0] != '\\') && 313 (Info->Name[0] != '/')) 314 { 315 ACPI_STRCAT (Info->Pathname, AcpiGbl_DbScopeBuf); 316 } 317 318 ACPI_STRCAT (Info->Pathname, Info->Name); 319 AcpiDbPrepNamestring (Info->Pathname); 320 321 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 322 AcpiOsPrintf ("Executing %s\n", Info->Pathname); 323 324 if (Info->Flags & EX_SINGLE_STEP) 325 { 326 AcpiGbl_CmSingleStep = TRUE; 327 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 328 } 329 330 else 331 { 332 /* No single step, allow redirection to a file */ 333 334 AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT); 335 } 336} 337 338 339#ifdef ACPI_DBG_TRACK_ALLOCATIONS 340UINT32 341AcpiDbGetCacheInfo ( 342 ACPI_MEMORY_LIST *Cache) 343{ 344 345 return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth); 346} 347#endif 348 349/******************************************************************************* 350 * 351 * FUNCTION: AcpiDbGetOutstandingAllocations 352 * 353 * PARAMETERS: None 354 * 355 * RETURN: Current global allocation count minus cache entries 356 * 357 * DESCRIPTION: Determine the current number of "outstanding" allocations -- 358 * those allocations that have not been freed and also are not 359 * in one of the various object caches. 360 * 361 ******************************************************************************/ 362 363static UINT32 364AcpiDbGetOutstandingAllocations ( 365 void) 366{ 367 UINT32 Outstanding = 0; 368 369#ifdef ACPI_DBG_TRACK_ALLOCATIONS 370 371 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache); 372 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache); 373 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache); 374 Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache); 375#endif 376 377 return (Outstanding); 378} 379 380 381/******************************************************************************* 382 * 383 * FUNCTION: AcpiDbExecutionWalk 384 * 385 * PARAMETERS: WALK_CALLBACK 386 * 387 * RETURN: Status 388 * 389 * DESCRIPTION: Execute a control method. Name is relative to the current 390 * scope. 391 * 392 ******************************************************************************/ 393 394static ACPI_STATUS 395AcpiDbExecutionWalk ( 396 ACPI_HANDLE ObjHandle, 397 UINT32 NestingLevel, 398 void *Context, 399 void **ReturnValue) 400{ 401 ACPI_OPERAND_OBJECT *ObjDesc; 402 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 403 ACPI_BUFFER ReturnObj; 404 ACPI_STATUS Status; 405 406 407 ObjDesc = AcpiNsGetAttachedObject (Node); 408 if (ObjDesc->Method.ParamCount) 409 { 410 return (AE_OK); 411 } 412 413 ReturnObj.Pointer = NULL; 414 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 415 416 AcpiNsPrintNodePathname (Node, "Execute"); 417 418 /* Do the actual method execution */ 419 420 AcpiOsPrintf ("\n"); 421 AcpiGbl_MethodExecuting = TRUE; 422 423 Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj); 424 425 AcpiOsPrintf ("[%4.4s] returned %s\n", AcpiUtGetNodeName (Node), 426 AcpiFormatException (Status)); 427 AcpiGbl_MethodExecuting = FALSE; 428 429 return (AE_OK); 430} 431 432 433/******************************************************************************* 434 * 435 * FUNCTION: AcpiDbExecute 436 * 437 * PARAMETERS: Name - Name of method to execute 438 * Args - Parameters to the method 439 * Flags - single step/no single step 440 * 441 * RETURN: None 442 * 443 * DESCRIPTION: Execute a control method. Name is relative to the current 444 * scope. 445 * 446 ******************************************************************************/ 447 448void 449AcpiDbExecute ( 450 char *Name, 451 char **Args, 452 UINT32 Flags) 453{ 454 ACPI_STATUS Status; 455 ACPI_BUFFER ReturnObj; 456 char *NameString; 457 458 459#ifdef ACPI_DEBUG_OUTPUT 460 UINT32 PreviousAllocations; 461 UINT32 Allocations; 462 463 464 /* Memory allocation tracking */ 465 466 PreviousAllocations = AcpiDbGetOutstandingAllocations (); 467#endif 468 469 if (*Name == '*') 470 { 471 (void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, 472 ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL); 473 return; 474 } 475 else 476 { 477 NameString = ACPI_ALLOCATE (ACPI_STRLEN (Name) + 1); 478 if (!NameString) 479 { 480 return; 481 } 482 483 ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 484 485 ACPI_STRCPY (NameString, Name); 486 AcpiUtStrupr (NameString); 487 AcpiGbl_DbMethodInfo.Name = NameString; 488 AcpiGbl_DbMethodInfo.Args = Args; 489 AcpiGbl_DbMethodInfo.Flags = Flags; 490 491 ReturnObj.Pointer = NULL; 492 ReturnObj.Length = ACPI_ALLOCATE_BUFFER; 493 494 AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 495 Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj); 496 ACPI_FREE (NameString); 497 } 498 499 /* 500 * Allow any handlers in separate threads to complete. 501 * (Such as Notify handlers invoked from AML executed above). 502 */ 503 AcpiOsSleep ((UINT64) 10); 504 505 506#ifdef ACPI_DEBUG_OUTPUT 507 508 /* Memory allocation tracking */ 509 510 Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations; 511 512 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 513 514 if (Allocations > 0) 515 { 516 AcpiOsPrintf ("Outstanding: 0x%X allocations after execution\n", 517 Allocations); 518 } 519#endif 520 521 if (ACPI_FAILURE (Status)) 522 { 523 AcpiOsPrintf ("Execution of %s failed with status %s\n", 524 AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status)); 525 } 526 else 527 { 528 /* Display a return object, if any */ 529 530 if (ReturnObj.Length) 531 { 532 AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n", 533 AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer, 534 (UINT32) ReturnObj.Length); 535 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 536 } 537 else 538 { 539 AcpiOsPrintf ("No return object from execution of %s\n", 540 AcpiGbl_DbMethodInfo.Pathname); 541 } 542 } 543 544 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 545} 546 547 548/******************************************************************************* 549 * 550 * FUNCTION: AcpiDbMethodThread 551 * 552 * PARAMETERS: Context - Execution info segment 553 * 554 * RETURN: None 555 * 556 * DESCRIPTION: Debugger execute thread. Waits for a command line, then 557 * simply dispatches it. 558 * 559 ******************************************************************************/ 560 561static void ACPI_SYSTEM_XFACE 562AcpiDbMethodThread ( 563 void *Context) 564{ 565 ACPI_STATUS Status; 566 ACPI_DB_METHOD_INFO *Info = Context; 567 ACPI_DB_METHOD_INFO LocalInfo; 568 UINT32 i; 569 UINT8 Allow; 570 ACPI_BUFFER ReturnObj; 571 572 573 /* 574 * AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments. 575 * Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads 576 * concurrently. 577 * 578 * Note: The arguments we are passing are used by the ASL test suite 579 * (aslts). Do not change them without updating the tests. 580 */ 581 (void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER); 582 583 if (Info->InitArgs) 584 { 585 AcpiDbUInt32ToHexString (Info->NumCreated, Info->IndexOfThreadStr); 586 AcpiDbUInt32ToHexString ((UINT32) AcpiOsGetThreadId (), Info->IdOfThreadStr); 587 } 588 589 if (Info->Threads && (Info->NumCreated < Info->NumThreads)) 590 { 591 Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId(); 592 } 593 594 LocalInfo = *Info; 595 LocalInfo.Args = LocalInfo.Arguments; 596 LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr; 597 LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr; 598 LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr; 599 LocalInfo.Arguments[3] = NULL; 600 601 (void) AcpiOsSignalSemaphore (Info->InfoGate, 1); 602 603 for (i = 0; i < Info->NumLoops; i++) 604 { 605 Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj); 606 if (ACPI_FAILURE (Status)) 607 { 608 AcpiOsPrintf ("%s During execution of %s at iteration %X\n", 609 AcpiFormatException (Status), Info->Pathname, i); 610 if (Status == AE_ABORT_METHOD) 611 { 612 break; 613 } 614 } 615 616#if 0 617 if ((i % 100) == 0) 618 { 619 AcpiOsPrintf ("%u executions, Thread 0x%x\n", i, AcpiOsGetThreadId ()); 620 } 621 622 if (ReturnObj.Length) 623 { 624 AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n", 625 Info->Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length); 626 AcpiDbDumpExternalObject (ReturnObj.Pointer, 1); 627 } 628#endif 629 } 630 631 /* Signal our completion */ 632 633 Allow = 0; 634 (void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 1, ACPI_WAIT_FOREVER); 635 Info->NumCompleted++; 636 637 if (Info->NumCompleted == Info->NumThreads) 638 { 639 /* Do signal for main thread once only */ 640 Allow = 1; 641 } 642 643 (void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1); 644 645 if (Allow) 646 { 647 Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1); 648 if (ACPI_FAILURE (Status)) 649 { 650 AcpiOsPrintf ("Could not signal debugger thread sync semaphore, %s\n", 651 AcpiFormatException (Status)); 652 } 653 } 654} 655 656 657/******************************************************************************* 658 * 659 * FUNCTION: AcpiDbCreateExecutionThreads 660 * 661 * PARAMETERS: NumThreadsArg - Number of threads to create 662 * NumLoopsArg - Loop count for the thread(s) 663 * MethodNameArg - Control method to execute 664 * 665 * RETURN: None 666 * 667 * DESCRIPTION: Create threads to execute method(s) 668 * 669 ******************************************************************************/ 670 671void 672AcpiDbCreateExecutionThreads ( 673 char *NumThreadsArg, 674 char *NumLoopsArg, 675 char *MethodNameArg) 676{ 677 ACPI_STATUS Status; 678 UINT32 NumThreads; 679 UINT32 NumLoops; 680 UINT32 i; 681 UINT32 Size; 682 ACPI_MUTEX MainThreadGate; 683 ACPI_MUTEX ThreadCompleteGate; 684 ACPI_MUTEX InfoGate; 685 686 687 /* Get the arguments */ 688 689 NumThreads = ACPI_STRTOUL (NumThreadsArg, NULL, 0); 690 NumLoops = ACPI_STRTOUL (NumLoopsArg, NULL, 0); 691 692 if (!NumThreads || !NumLoops) 693 { 694 AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n", 695 NumThreads, NumLoops); 696 return; 697 } 698 699 /* 700 * Create the semaphore for synchronization of 701 * the created threads with the main thread. 702 */ 703 Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate); 704 if (ACPI_FAILURE (Status)) 705 { 706 AcpiOsPrintf ("Could not create semaphore for synchronization with the main thread, %s\n", 707 AcpiFormatException (Status)); 708 return; 709 } 710 711 /* 712 * Create the semaphore for synchronization 713 * between the created threads. 714 */ 715 Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate); 716 if (ACPI_FAILURE (Status)) 717 { 718 AcpiOsPrintf ("Could not create semaphore for synchronization between the created threads, %s\n", 719 AcpiFormatException (Status)); 720 (void) AcpiOsDeleteSemaphore (MainThreadGate); 721 return; 722 } 723 724 Status = AcpiOsCreateSemaphore (1, 1, &InfoGate); 725 if (ACPI_FAILURE (Status)) 726 { 727 AcpiOsPrintf ("Could not create semaphore for synchronization of AcpiGbl_DbMethodInfo, %s\n", 728 AcpiFormatException (Status)); 729 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 730 (void) AcpiOsDeleteSemaphore (MainThreadGate); 731 return; 732 } 733 734 ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO)); 735 736 /* Array to store IDs of threads */ 737 738 AcpiGbl_DbMethodInfo.NumThreads = NumThreads; 739 Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads; 740 AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size); 741 if (AcpiGbl_DbMethodInfo.Threads == NULL) 742 { 743 AcpiOsPrintf ("No memory for thread IDs array\n"); 744 (void) AcpiOsDeleteSemaphore (MainThreadGate); 745 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 746 (void) AcpiOsDeleteSemaphore (InfoGate); 747 return; 748 } 749 ACPI_MEMSET (AcpiGbl_DbMethodInfo.Threads, 0, Size); 750 751 /* Setup the context to be passed to each thread */ 752 753 AcpiGbl_DbMethodInfo.Name = MethodNameArg; 754 AcpiGbl_DbMethodInfo.Flags = 0; 755 AcpiGbl_DbMethodInfo.NumLoops = NumLoops; 756 AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate; 757 AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate; 758 AcpiGbl_DbMethodInfo.InfoGate = InfoGate; 759 760 /* Init arguments to be passed to method */ 761 762 AcpiGbl_DbMethodInfo.InitArgs = 1; 763 AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments; 764 AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr; 765 AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr; 766 AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr; 767 AcpiGbl_DbMethodInfo.Arguments[3] = NULL; 768 AcpiDbUInt32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr); 769 770 AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo); 771 772 /* Create the threads */ 773 774 AcpiOsPrintf ("Creating %X threads to execute %X times each\n", 775 NumThreads, NumLoops); 776 777 for (i = 0; i < (NumThreads); i++) 778 { 779 Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread, 780 &AcpiGbl_DbMethodInfo); 781 if (ACPI_FAILURE (Status)) 782 { 783 break; 784 } 785 } 786 787 /* Wait for all threads to complete */ 788 789 (void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER); 790 791 AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT); 792 AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads); 793 AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT); 794 795 /* Cleanup and exit */ 796 797 (void) AcpiOsDeleteSemaphore (MainThreadGate); 798 (void) AcpiOsDeleteSemaphore (ThreadCompleteGate); 799 (void) AcpiOsDeleteSemaphore (InfoGate); 800 801 AcpiOsFree (AcpiGbl_DbMethodInfo.Threads); 802 AcpiGbl_DbMethodInfo.Threads = NULL; 803} 804 805#endif /* ACPI_DEBUGGER */ 806 807 808