1 /****************************************************************************** 2 * 3 * Module Name: dswexec - Dispatcher method execution callbacks; 4 * dispatch to interpreter. 5 * 6 *****************************************************************************/ 7 8 /* 9 * Copyright (C) 2000 - 2022, Intel Corp. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions, and the following disclaimer, 17 * without modification. 18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 * substantially similar to the "NO WARRANTY" disclaimer below 20 * ("Disclaimer") and any redistribution must be conditioned upon 21 * including a substantially similar Disclaimer requirement for further 22 * binary redistribution. 23 * 3. Neither the names of the above-listed copyright holders nor the names 24 * of any contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * Alternatively, this software may be distributed under the terms of the 28 * GNU General Public License ("GPL") version 2 as published by the Free 29 * Software Foundation. 30 * 31 * NO WARRANTY 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGES. 43 */ 44 45 #include "acpi.h" 46 #include "accommon.h" 47 #include "acparser.h" 48 #include "amlcode.h" 49 #include "acdispat.h" 50 #include "acinterp.h" 51 #include "acnamesp.h" 52 #include "acdebug.h" 53 #ifdef ACPI_EXEC_APP 54 #include "aecommon.h" 55 #endif 56 57 #define _COMPONENT ACPI_DISPATCHER 58 ACPI_MODULE_NAME ("dswexec") 59 60 /* 61 * Dispatch table for opcode classes 62 */ 63 static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] = 64 { 65 AcpiExOpcode_0A_0T_1R, 66 AcpiExOpcode_1A_0T_0R, 67 AcpiExOpcode_1A_0T_1R, 68 NULL, /* Was: AcpiExOpcode_1A_0T_0R (Was for Load operator) */ 69 AcpiExOpcode_1A_1T_1R, 70 AcpiExOpcode_2A_0T_0R, 71 AcpiExOpcode_2A_0T_1R, 72 AcpiExOpcode_2A_1T_1R, 73 AcpiExOpcode_2A_2T_1R, 74 AcpiExOpcode_3A_0T_0R, 75 AcpiExOpcode_3A_1T_1R, 76 AcpiExOpcode_6A_0T_1R 77 }; 78 79 80 /***************************************************************************** 81 * 82 * FUNCTION: AcpiDsGetPredicateValue 83 * 84 * PARAMETERS: WalkState - Current state of the parse tree walk 85 * ResultObj - if non-zero, pop result from result stack 86 * 87 * RETURN: Status 88 * 89 * DESCRIPTION: Get the result of a predicate evaluation 90 * 91 ****************************************************************************/ 92 93 ACPI_STATUS 94 AcpiDsGetPredicateValue ( 95 ACPI_WALK_STATE *WalkState, 96 ACPI_OPERAND_OBJECT *ResultObj) 97 { 98 ACPI_STATUS Status = AE_OK; 99 ACPI_OPERAND_OBJECT *ObjDesc; 100 ACPI_OPERAND_OBJECT *LocalObjDesc = NULL; 101 102 103 ACPI_FUNCTION_TRACE_PTR (DsGetPredicateValue, WalkState); 104 105 106 WalkState->ControlState->Common.State = 0; 107 108 if (ResultObj) 109 { 110 Status = AcpiDsResultPop (&ObjDesc, WalkState); 111 if (ACPI_FAILURE (Status)) 112 { 113 ACPI_EXCEPTION ((AE_INFO, Status, 114 "Could not get result from predicate evaluation")); 115 116 return_ACPI_STATUS (Status); 117 } 118 } 119 else 120 { 121 Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0); 122 if (ACPI_FAILURE (Status)) 123 { 124 return_ACPI_STATUS (Status); 125 } 126 127 Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState); 128 if (ACPI_FAILURE (Status)) 129 { 130 return_ACPI_STATUS (Status); 131 } 132 133 ObjDesc = WalkState->Operands [0]; 134 } 135 136 if (!ObjDesc) 137 { 138 ACPI_ERROR ((AE_INFO, 139 "No predicate ObjDesc=%p State=%p", 140 ObjDesc, WalkState)); 141 142 return_ACPI_STATUS (AE_AML_NO_OPERAND); 143 } 144 145 /* 146 * Result of predicate evaluation must be an Integer 147 * object. Implicitly convert the argument if necessary. 148 */ 149 Status = AcpiExConvertToInteger (ObjDesc, &LocalObjDesc, 150 ACPI_IMPLICIT_CONVERSION); 151 if (ACPI_FAILURE (Status)) 152 { 153 goto Cleanup; 154 } 155 156 if (LocalObjDesc->Common.Type != ACPI_TYPE_INTEGER) 157 { 158 ACPI_ERROR ((AE_INFO, 159 "Bad predicate (not an integer) ObjDesc=%p State=%p Type=0x%X", 160 ObjDesc, WalkState, ObjDesc->Common.Type)); 161 162 Status = AE_AML_OPERAND_TYPE; 163 goto Cleanup; 164 } 165 166 /* Truncate the predicate to 32-bits if necessary */ 167 168 (void) AcpiExTruncateFor32bitTable (LocalObjDesc); 169 170 /* 171 * Save the result of the predicate evaluation on 172 * the control stack 173 */ 174 if (LocalObjDesc->Integer.Value) 175 { 176 WalkState->ControlState->Common.Value = TRUE; 177 } 178 else 179 { 180 /* 181 * Predicate is FALSE, we will just toss the 182 * rest of the package 183 */ 184 WalkState->ControlState->Common.Value = FALSE; 185 Status = AE_CTRL_FALSE; 186 } 187 188 /* Predicate can be used for an implicit return value */ 189 190 (void) AcpiDsDoImplicitReturn (LocalObjDesc, WalkState, TRUE); 191 192 193 Cleanup: 194 195 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 196 "Completed a predicate eval=%X Op=%p\n", 197 WalkState->ControlState->Common.Value, WalkState->Op)); 198 199 /* Break to debugger to display result */ 200 201 AcpiDbDisplayResultObject (LocalObjDesc, WalkState); 202 203 /* 204 * Delete the predicate result object (we know that 205 * we don't need it anymore) 206 */ 207 if (LocalObjDesc != ObjDesc) 208 { 209 AcpiUtRemoveReference (LocalObjDesc); 210 } 211 AcpiUtRemoveReference (ObjDesc); 212 213 WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL; 214 return_ACPI_STATUS (Status); 215 } 216 217 218 /***************************************************************************** 219 * 220 * FUNCTION: AcpiDsExecBeginOp 221 * 222 * PARAMETERS: WalkState - Current state of the parse tree walk 223 * OutOp - Where to return op if a new one is created 224 * 225 * RETURN: Status 226 * 227 * DESCRIPTION: Descending callback used during the execution of control 228 * methods. This is where most operators and operands are 229 * dispatched to the interpreter. 230 * 231 ****************************************************************************/ 232 233 ACPI_STATUS 234 AcpiDsExecBeginOp ( 235 ACPI_WALK_STATE *WalkState, 236 ACPI_PARSE_OBJECT **OutOp) 237 { 238 ACPI_PARSE_OBJECT *Op; 239 ACPI_STATUS Status = AE_OK; 240 UINT32 OpcodeClass; 241 242 243 ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState); 244 245 246 Op = WalkState->Op; 247 if (!Op) 248 { 249 Status = AcpiDsLoad2BeginOp (WalkState, OutOp); 250 if (ACPI_FAILURE (Status)) 251 { 252 goto ErrorExit; 253 } 254 255 Op = *OutOp; 256 WalkState->Op = Op; 257 WalkState->Opcode = Op->Common.AmlOpcode; 258 WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 259 260 if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType)) 261 { 262 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 263 "(%s) Popping scope for Op %p\n", 264 AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op)); 265 266 Status = AcpiDsScopeStackPop (WalkState); 267 if (ACPI_FAILURE (Status)) 268 { 269 goto ErrorExit; 270 } 271 } 272 } 273 274 if (Op == WalkState->Origin) 275 { 276 if (OutOp) 277 { 278 *OutOp = Op; 279 } 280 281 return_ACPI_STATUS (AE_OK); 282 } 283 284 /* 285 * If the previous opcode was a conditional, this opcode 286 * must be the beginning of the associated predicate. 287 * Save this knowledge in the current scope descriptor 288 */ 289 if ((WalkState->ControlState) && 290 (WalkState->ControlState->Common.State == 291 ACPI_CONTROL_CONDITIONAL_EXECUTING)) 292 { 293 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 294 "Exec predicate Op=%p State=%p\n", 295 Op, WalkState)); 296 297 WalkState->ControlState->Common.State = 298 ACPI_CONTROL_PREDICATE_EXECUTING; 299 300 /* Save start of predicate */ 301 302 WalkState->ControlState->Control.PredicateOp = Op; 303 } 304 305 306 OpcodeClass = WalkState->OpInfo->Class; 307 308 /* We want to send namepaths to the load code */ 309 310 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) 311 { 312 OpcodeClass = AML_CLASS_NAMED_OBJECT; 313 } 314 315 /* 316 * Handle the opcode based upon the opcode type 317 */ 318 switch (OpcodeClass) 319 { 320 case AML_CLASS_CONTROL: 321 322 Status = AcpiDsExecBeginControlOp (WalkState, Op); 323 break; 324 325 case AML_CLASS_NAMED_OBJECT: 326 327 if (WalkState->WalkType & ACPI_WALK_METHOD) 328 { 329 /* 330 * Found a named object declaration during method execution; 331 * we must enter this object into the namespace. The created 332 * object is temporary and will be deleted upon completion of 333 * the execution of this method. 334 * 335 * Note 10/2010: Except for the Scope() op. This opcode does 336 * not actually create a new object, it refers to an existing 337 * object. However, for Scope(), we want to indeed open a 338 * new scope. 339 */ 340 if (Op->Common.AmlOpcode != AML_SCOPE_OP) 341 { 342 Status = AcpiDsLoad2BeginOp (WalkState, NULL); 343 } 344 else 345 { 346 Status = AcpiDsScopeStackPush ( 347 Op->Named.Node, Op->Named.Node->Type, WalkState); 348 if (ACPI_FAILURE (Status)) 349 { 350 return_ACPI_STATUS (Status); 351 } 352 } 353 } 354 break; 355 356 case AML_CLASS_EXECUTE: 357 case AML_CLASS_CREATE: 358 359 break; 360 361 default: 362 363 break; 364 } 365 366 /* Nothing to do here during method execution */ 367 368 return_ACPI_STATUS (Status); 369 370 371 ErrorExit: 372 Status = AcpiDsMethodError (Status, WalkState); 373 return_ACPI_STATUS (Status); 374 } 375 376 377 /***************************************************************************** 378 * 379 * FUNCTION: AcpiDsExecEndOp 380 * 381 * PARAMETERS: WalkState - Current state of the parse tree walk 382 * 383 * RETURN: Status 384 * 385 * DESCRIPTION: Ascending callback used during the execution of control 386 * methods. The only thing we really need to do here is to 387 * notice the beginning of IF, ELSE, and WHILE blocks. 388 * 389 ****************************************************************************/ 390 391 ACPI_STATUS 392 AcpiDsExecEndOp ( 393 ACPI_WALK_STATE *WalkState) 394 { 395 ACPI_PARSE_OBJECT *Op; 396 ACPI_STATUS Status = AE_OK; 397 UINT32 OpType; 398 UINT32 OpClass; 399 ACPI_PARSE_OBJECT *NextOp; 400 ACPI_PARSE_OBJECT *FirstArg; 401 #ifdef ACPI_EXEC_APP 402 char *Namepath; 403 ACPI_OPERAND_OBJECT *ObjDesc; 404 #endif 405 406 ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState); 407 408 409 Op = WalkState->Op; 410 OpType = WalkState->OpInfo->Type; 411 OpClass = WalkState->OpInfo->Class; 412 413 if (OpClass == AML_CLASS_UNKNOWN) 414 { 415 ACPI_ERROR ((AE_INFO, "Unknown opcode 0x%X", Op->Common.AmlOpcode)); 416 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 417 } 418 419 FirstArg = Op->Common.Value.Arg; 420 421 /* Init the walk state */ 422 423 WalkState->NumOperands = 0; 424 WalkState->OperandIndex = 0; 425 WalkState->ReturnDesc = NULL; 426 WalkState->ResultObj = NULL; 427 428 /* Call debugger for single step support (DEBUG build only) */ 429 430 Status = AcpiDbSingleStep (WalkState, Op, OpClass); 431 if (ACPI_FAILURE (Status)) 432 { 433 return_ACPI_STATUS (Status); 434 } 435 436 /* Decode the Opcode Class */ 437 438 switch (OpClass) 439 { 440 case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */ 441 442 if (WalkState->Opcode == AML_INT_NAMEPATH_OP) 443 { 444 Status = AcpiDsEvaluateNamePath (WalkState); 445 if (ACPI_FAILURE (Status)) 446 { 447 goto Cleanup; 448 } 449 } 450 break; 451 452 case AML_CLASS_EXECUTE: /* Most operators with arguments */ 453 454 /* Build resolved operand stack */ 455 456 Status = AcpiDsCreateOperands (WalkState, FirstArg); 457 if (ACPI_FAILURE (Status)) 458 { 459 goto Cleanup; 460 } 461 462 /* 463 * All opcodes require operand resolution, with the only exceptions 464 * being the ObjectType and SizeOf operators. 465 */ 466 if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE)) 467 { 468 /* Resolve all operands */ 469 470 Status = AcpiExResolveOperands (WalkState->Opcode, 471 &(WalkState->Operands [WalkState->NumOperands -1]), 472 WalkState); 473 } 474 475 if (ACPI_SUCCESS (Status)) 476 { 477 /* 478 * Dispatch the request to the appropriate interpreter handler 479 * routine. There is one routine per opcode "type" based upon the 480 * number of opcode arguments and return type. 481 */ 482 Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState); 483 } 484 else 485 { 486 /* 487 * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the 488 * Local is uninitialized. 489 */ 490 if ((Status == AE_AML_UNINITIALIZED_LOCAL) && 491 (WalkState->Opcode == AML_STORE_OP) && 492 (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 493 (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) && 494 (WalkState->Operands[0]->Reference.Class == 495 WalkState->Operands[1]->Reference.Class) && 496 (WalkState->Operands[0]->Reference.Value == 497 WalkState->Operands[1]->Reference.Value)) 498 { 499 Status = AE_OK; 500 } 501 else 502 { 503 ACPI_EXCEPTION ((AE_INFO, Status, 504 "While resolving operands for [%s]", 505 AcpiPsGetOpcodeName (WalkState->Opcode))); 506 } 507 } 508 509 /* Always delete the argument objects and clear the operand stack */ 510 511 AcpiDsClearOperands (WalkState); 512 513 /* 514 * If a result object was returned from above, push it on the 515 * current result stack 516 */ 517 if (ACPI_SUCCESS (Status) && 518 WalkState->ResultObj) 519 { 520 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); 521 } 522 break; 523 524 default: 525 526 switch (OpType) 527 { 528 case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */ 529 530 /* 1 Operand, 0 ExternalResult, 0 InternalResult */ 531 532 Status = AcpiDsExecEndControlOp (WalkState, Op); 533 534 break; 535 536 case AML_TYPE_METHOD_CALL: 537 /* 538 * If the method is referenced from within a package 539 * declaration, it is not a invocation of the method, just 540 * a reference to it. 541 */ 542 if ((Op->Asl.Parent) && 543 ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) || 544 (Op->Asl.Parent->Asl.AmlOpcode == AML_VARIABLE_PACKAGE_OP))) 545 { 546 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 547 "Method Reference in a Package, Op=%p\n", Op)); 548 549 Op->Common.Node = (ACPI_NAMESPACE_NODE *) 550 Op->Asl.Value.Arg->Asl.Node; 551 AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object); 552 return_ACPI_STATUS (AE_OK); 553 } 554 555 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 556 "Method invocation, Op=%p\n", Op)); 557 558 /* 559 * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains 560 * the method Node pointer 561 */ 562 /* NextOp points to the op that holds the method name */ 563 564 NextOp = FirstArg; 565 566 /* NextOp points to first argument op */ 567 568 NextOp = NextOp->Common.Next; 569 570 /* 571 * Get the method's arguments and put them on the operand stack 572 */ 573 Status = AcpiDsCreateOperands (WalkState, NextOp); 574 if (ACPI_FAILURE (Status)) 575 { 576 break; 577 } 578 579 /* 580 * Since the operands will be passed to another control method, 581 * we must resolve all local references here (Local variables, 582 * arguments to *this* method, etc.) 583 */ 584 Status = AcpiDsResolveOperands (WalkState); 585 if (ACPI_FAILURE (Status)) 586 { 587 /* On error, clear all resolved operands */ 588 589 AcpiDsClearOperands (WalkState); 590 break; 591 } 592 593 /* 594 * Tell the walk loop to preempt this running method and 595 * execute the new method 596 */ 597 Status = AE_CTRL_TRANSFER; 598 599 /* 600 * Return now; we don't want to disturb anything, 601 * especially the operand count! 602 */ 603 return_ACPI_STATUS (Status); 604 605 case AML_TYPE_CREATE_FIELD: 606 607 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 608 "Executing CreateField Buffer/Index Op=%p\n", Op)); 609 610 Status = AcpiDsLoad2EndOp (WalkState); 611 if (ACPI_FAILURE (Status)) 612 { 613 break; 614 } 615 616 Status = AcpiDsEvalBufferFieldOperands (WalkState, Op); 617 if (ACPI_FAILURE (Status)) 618 { 619 break; 620 } 621 622 #ifdef ACPI_EXEC_APP 623 /* 624 * AcpiExec support for namespace initialization file (initialize 625 * BufferFields in this code.) 626 */ 627 Namepath = AcpiNsGetExternalPathname (Op->Common.Node); 628 Status = AeLookupInitFileEntry (Namepath, &ObjDesc); 629 if (ACPI_SUCCESS (Status)) 630 { 631 Status = AcpiExWriteDataToField (ObjDesc, Op->Common.Node->Object, NULL); 632 if (ACPI_FAILURE (Status)) 633 { 634 ACPI_EXCEPTION ((AE_INFO, Status, "While writing to buffer field")); 635 } 636 } 637 ACPI_FREE (Namepath); 638 Status = AE_OK; 639 #endif 640 break; 641 642 643 case AML_TYPE_CREATE_OBJECT: 644 645 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 646 "Executing CreateObject (Buffer/Package) Op=%p Child=%p ParentOpcode=%4.4X\n", 647 Op, Op->Named.Value.Arg, Op->Common.Parent->Common.AmlOpcode)); 648 649 switch (Op->Common.Parent->Common.AmlOpcode) 650 { 651 case AML_NAME_OP: 652 /* 653 * Put the Node on the object stack (Contains the ACPI Name 654 * of this object) 655 */ 656 WalkState->Operands[0] = (void *) 657 Op->Common.Parent->Common.Node; 658 WalkState->NumOperands = 1; 659 660 Status = AcpiDsCreateNode (WalkState, 661 Op->Common.Parent->Common.Node, Op->Common.Parent); 662 if (ACPI_FAILURE (Status)) 663 { 664 break; 665 } 666 667 ACPI_FALLTHROUGH; 668 669 case AML_INT_EVAL_SUBTREE_OP: 670 671 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, 672 AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node)); 673 break; 674 675 default: 676 677 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL); 678 break; 679 } 680 681 /* 682 * If a result object was returned from above, push it on the 683 * current result stack 684 */ 685 if (WalkState->ResultObj) 686 { 687 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState); 688 } 689 break; 690 691 case AML_TYPE_NAMED_FIELD: 692 case AML_TYPE_NAMED_COMPLEX: 693 case AML_TYPE_NAMED_SIMPLE: 694 case AML_TYPE_NAMED_NO_OBJ: 695 696 Status = AcpiDsLoad2EndOp (WalkState); 697 if (ACPI_FAILURE (Status)) 698 { 699 break; 700 } 701 702 if (Op->Common.AmlOpcode == AML_REGION_OP) 703 { 704 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 705 "Executing OpRegion Address/Length Op=%p\n", Op)); 706 707 Status = AcpiDsEvalRegionOperands (WalkState, Op); 708 if (ACPI_FAILURE (Status)) 709 { 710 break; 711 } 712 } 713 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) 714 { 715 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 716 "Executing DataTableRegion Strings Op=%p\n", Op)); 717 718 Status = AcpiDsEvalTableRegionOperands (WalkState, Op); 719 if (ACPI_FAILURE (Status)) 720 { 721 break; 722 } 723 } 724 else if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP) 725 { 726 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 727 "Executing BankField Op=%p\n", Op)); 728 729 Status = AcpiDsEvalBankFieldOperands (WalkState, Op); 730 if (ACPI_FAILURE (Status)) 731 { 732 break; 733 } 734 } 735 break; 736 737 case AML_TYPE_UNDEFINED: 738 739 ACPI_ERROR ((AE_INFO, 740 "Undefined opcode type Op=%p", Op)); 741 return_ACPI_STATUS (AE_NOT_IMPLEMENTED); 742 743 case AML_TYPE_BOGUS: 744 745 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 746 "Internal opcode=%X type Op=%p\n", 747 WalkState->Opcode, Op)); 748 break; 749 750 default: 751 752 ACPI_ERROR ((AE_INFO, 753 "Unimplemented opcode, class=0x%X " 754 "type=0x%X Opcode=0x%X Op=%p", 755 OpClass, OpType, Op->Common.AmlOpcode, Op)); 756 757 Status = AE_NOT_IMPLEMENTED; 758 break; 759 } 760 } 761 762 /* 763 * ACPI 2.0 support for 64-bit integers: Truncate numeric 764 * result value if we are executing from a 32-bit ACPI table 765 */ 766 (void) AcpiExTruncateFor32bitTable (WalkState->ResultObj); 767 768 /* 769 * Check if we just completed the evaluation of a 770 * conditional predicate 771 */ 772 if ((ACPI_SUCCESS (Status)) && 773 (WalkState->ControlState) && 774 (WalkState->ControlState->Common.State == 775 ACPI_CONTROL_PREDICATE_EXECUTING) && 776 (WalkState->ControlState->Control.PredicateOp == Op)) 777 { 778 Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj); 779 WalkState->ResultObj = NULL; 780 } 781 782 783 Cleanup: 784 785 if (WalkState->ResultObj) 786 { 787 /* Break to debugger to display result */ 788 789 AcpiDbDisplayResultObject (WalkState->ResultObj,WalkState); 790 791 /* 792 * Delete the result op if and only if: 793 * Parent will not use the result -- such as any 794 * non-nested type2 op in a method (parent will be method) 795 */ 796 AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState); 797 } 798 799 #ifdef _UNDER_DEVELOPMENT 800 801 if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd) 802 { 803 AcpiDbMethodEnd (WalkState); 804 } 805 #endif 806 807 /* Invoke exception handler on error */ 808 809 if (ACPI_FAILURE (Status)) 810 { 811 Status = AcpiDsMethodError (Status, WalkState); 812 } 813 814 /* Always clear the object stack */ 815 816 WalkState->NumOperands = 0; 817 return_ACPI_STATUS (Status); 818 } 819