1 /******************************************************************************
2 *
3 * Module Name: dswexec - Dispatcher method execution callbacks;
4 * dispatch to interpreter.
5 *
6 *****************************************************************************/
7
8 /******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2018, 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 * Alternatively, you may choose to be licensed under the terms of the
118 * following license:
119 *
120 * Redistribution and use in source and binary forms, with or without
121 * modification, are permitted provided that the following conditions
122 * are met:
123 * 1. Redistributions of source code must retain the above copyright
124 * notice, this list of conditions, and the following disclaimer,
125 * without modification.
126 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127 * substantially similar to the "NO WARRANTY" disclaimer below
128 * ("Disclaimer") and any redistribution must be conditioned upon
129 * including a substantially similar Disclaimer requirement for further
130 * binary redistribution.
131 * 3. Neither the names of the above-listed copyright holders nor the names
132 * of any contributors may be used to endorse or promote products derived
133 * from this software without specific prior written permission.
134 *
135 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 *
147 * Alternatively, you may choose to be licensed under the terms of the
148 * GNU General Public License ("GPL") version 2 as published by the Free
149 * Software Foundation.
150 *
151 *****************************************************************************/
152
153 #include "acpi.h"
154 #include "accommon.h"
155 #include "acparser.h"
156 #include "amlcode.h"
157 #include "acdispat.h"
158 #include "acinterp.h"
159 #include "acnamesp.h"
160 #include "acdebug.h"
161
162
163 #define _COMPONENT ACPI_DISPATCHER
164 ACPI_MODULE_NAME ("dswexec")
165
166 /*
167 * Dispatch table for opcode classes
168 */
169 static ACPI_EXECUTE_OP AcpiGbl_OpTypeDispatch [] =
170 {
171 AcpiExOpcode_0A_0T_1R,
172 AcpiExOpcode_1A_0T_0R,
173 AcpiExOpcode_1A_0T_1R,
174 AcpiExOpcode_1A_1T_0R,
175 AcpiExOpcode_1A_1T_1R,
176 AcpiExOpcode_2A_0T_0R,
177 AcpiExOpcode_2A_0T_1R,
178 AcpiExOpcode_2A_1T_1R,
179 AcpiExOpcode_2A_2T_1R,
180 AcpiExOpcode_3A_0T_0R,
181 AcpiExOpcode_3A_1T_1R,
182 AcpiExOpcode_6A_0T_1R
183 };
184
185
186 /*****************************************************************************
187 *
188 * FUNCTION: AcpiDsGetPredicateValue
189 *
190 * PARAMETERS: WalkState - Current state of the parse tree walk
191 * ResultObj - if non-zero, pop result from result stack
192 *
193 * RETURN: Status
194 *
195 * DESCRIPTION: Get the result of a predicate evaluation
196 *
197 ****************************************************************************/
198
199 ACPI_STATUS
AcpiDsGetPredicateValue(ACPI_WALK_STATE * WalkState,ACPI_OPERAND_OBJECT * ResultObj)200 AcpiDsGetPredicateValue (
201 ACPI_WALK_STATE *WalkState,
202 ACPI_OPERAND_OBJECT *ResultObj)
203 {
204 ACPI_STATUS Status = AE_OK;
205 ACPI_OPERAND_OBJECT *ObjDesc;
206 ACPI_OPERAND_OBJECT *LocalObjDesc = NULL;
207
208
209 ACPI_FUNCTION_TRACE_PTR (DsGetPredicateValue, WalkState);
210
211
212 WalkState->ControlState->Common.State = 0;
213
214 if (ResultObj)
215 {
216 Status = AcpiDsResultPop (&ObjDesc, WalkState);
217 if (ACPI_FAILURE (Status))
218 {
219 ACPI_EXCEPTION ((AE_INFO, Status,
220 "Could not get result from predicate evaluation"));
221
222 return_ACPI_STATUS (Status);
223 }
224 }
225 else
226 {
227 Status = AcpiDsCreateOperand (WalkState, WalkState->Op, 0);
228 if (ACPI_FAILURE (Status))
229 {
230 return_ACPI_STATUS (Status);
231 }
232
233 Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState);
234 if (ACPI_FAILURE (Status))
235 {
236 return_ACPI_STATUS (Status);
237 }
238
239 ObjDesc = WalkState->Operands [0];
240 }
241
242 if (!ObjDesc)
243 {
244 ACPI_ERROR ((AE_INFO,
245 "No predicate ObjDesc=%p State=%p",
246 ObjDesc, WalkState));
247
248 return_ACPI_STATUS (AE_AML_NO_OPERAND);
249 }
250
251 /*
252 * Result of predicate evaluation must be an Integer
253 * object. Implicitly convert the argument if necessary.
254 */
255 Status = AcpiExConvertToInteger (ObjDesc, &LocalObjDesc,
256 ACPI_IMPLICIT_CONVERSION);
257 if (ACPI_FAILURE (Status))
258 {
259 goto Cleanup;
260 }
261
262 if (LocalObjDesc->Common.Type != ACPI_TYPE_INTEGER)
263 {
264 ACPI_ERROR ((AE_INFO,
265 "Bad predicate (not an integer) ObjDesc=%p State=%p Type=0x%X",
266 ObjDesc, WalkState, ObjDesc->Common.Type));
267
268 Status = AE_AML_OPERAND_TYPE;
269 goto Cleanup;
270 }
271
272 /* Truncate the predicate to 32-bits if necessary */
273
274 (void) AcpiExTruncateFor32bitTable (LocalObjDesc);
275
276 /*
277 * Save the result of the predicate evaluation on
278 * the control stack
279 */
280 if (LocalObjDesc->Integer.Value)
281 {
282 WalkState->ControlState->Common.Value = TRUE;
283 }
284 else
285 {
286 /*
287 * Predicate is FALSE, we will just toss the
288 * rest of the package
289 */
290 WalkState->ControlState->Common.Value = FALSE;
291 Status = AE_CTRL_FALSE;
292 }
293
294 /* Predicate can be used for an implicit return value */
295
296 (void) AcpiDsDoImplicitReturn (LocalObjDesc, WalkState, TRUE);
297
298
299 Cleanup:
300
301 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
302 "Completed a predicate eval=%X Op=%p\n",
303 WalkState->ControlState->Common.Value, WalkState->Op));
304
305 #ifdef ACPI_DEBUGGER
306 /* Break to debugger to display result */
307
308 AcpiDbDisplayResultObject (LocalObjDesc, WalkState);
309 #endif
310
311 /*
312 * Delete the predicate result object (we know that
313 * we don't need it anymore)
314 */
315 if (LocalObjDesc != ObjDesc)
316 {
317 AcpiUtRemoveReference (LocalObjDesc);
318 }
319 AcpiUtRemoveReference (ObjDesc);
320
321 WalkState->ControlState->Common.State = ACPI_CONTROL_NORMAL;
322 return_ACPI_STATUS (Status);
323 }
324
325
326 /*****************************************************************************
327 *
328 * FUNCTION: AcpiDsExecBeginOp
329 *
330 * PARAMETERS: WalkState - Current state of the parse tree walk
331 * OutOp - Where to return op if a new one is created
332 *
333 * RETURN: Status
334 *
335 * DESCRIPTION: Descending callback used during the execution of control
336 * methods. This is where most operators and operands are
337 * dispatched to the interpreter.
338 *
339 ****************************************************************************/
340
341 ACPI_STATUS
AcpiDsExecBeginOp(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT ** OutOp)342 AcpiDsExecBeginOp (
343 ACPI_WALK_STATE *WalkState,
344 ACPI_PARSE_OBJECT **OutOp)
345 {
346 ACPI_PARSE_OBJECT *Op;
347 ACPI_STATUS Status = AE_OK;
348 UINT32 OpcodeClass;
349
350
351 ACPI_FUNCTION_TRACE_PTR (DsExecBeginOp, WalkState);
352
353
354 Op = WalkState->Op;
355 if (!Op)
356 {
357 Status = AcpiDsLoad2BeginOp (WalkState, OutOp);
358 if (ACPI_FAILURE (Status))
359 {
360 goto ErrorExit;
361 }
362
363 Op = *OutOp;
364 WalkState->Op = Op;
365 WalkState->Opcode = Op->Common.AmlOpcode;
366 WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
367
368 if (AcpiNsOpensScope (WalkState->OpInfo->ObjectType))
369 {
370 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
371 "(%s) Popping scope for Op %p\n",
372 AcpiUtGetTypeName (WalkState->OpInfo->ObjectType), Op));
373
374 Status = AcpiDsScopeStackPop (WalkState);
375 if (ACPI_FAILURE (Status))
376 {
377 goto ErrorExit;
378 }
379 }
380 }
381
382 if (Op == WalkState->Origin)
383 {
384 if (OutOp)
385 {
386 *OutOp = Op;
387 }
388
389 return_ACPI_STATUS (AE_OK);
390 }
391
392 /*
393 * If the previous opcode was a conditional, this opcode
394 * must be the beginning of the associated predicate.
395 * Save this knowledge in the current scope descriptor
396 */
397 if ((WalkState->ControlState) &&
398 (WalkState->ControlState->Common.State ==
399 ACPI_CONTROL_CONDITIONAL_EXECUTING))
400 {
401 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
402 "Exec predicate Op=%p State=%p\n",
403 Op, WalkState));
404
405 WalkState->ControlState->Common.State =
406 ACPI_CONTROL_PREDICATE_EXECUTING;
407
408 /* Save start of predicate */
409
410 WalkState->ControlState->Control.PredicateOp = Op;
411 }
412
413
414 OpcodeClass = WalkState->OpInfo->Class;
415
416 /* We want to send namepaths to the load code */
417
418 if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
419 {
420 OpcodeClass = AML_CLASS_NAMED_OBJECT;
421 }
422
423 /*
424 * Handle the opcode based upon the opcode type
425 */
426 switch (OpcodeClass)
427 {
428 case AML_CLASS_CONTROL:
429
430 Status = AcpiDsExecBeginControlOp (WalkState, Op);
431 break;
432
433 case AML_CLASS_NAMED_OBJECT:
434
435 if (WalkState->WalkType & ACPI_WALK_METHOD)
436 {
437 /*
438 * Found a named object declaration during method execution;
439 * we must enter this object into the namespace. The created
440 * object is temporary and will be deleted upon completion of
441 * the execution of this method.
442 *
443 * Note 10/2010: Except for the Scope() op. This opcode does
444 * not actually create a new object, it refers to an existing
445 * object. However, for Scope(), we want to indeed open a
446 * new scope.
447 */
448 if (Op->Common.AmlOpcode != AML_SCOPE_OP)
449 {
450 Status = AcpiDsLoad2BeginOp (WalkState, NULL);
451 }
452 else
453 {
454 Status = AcpiDsScopeStackPush (
455 Op->Named.Node, Op->Named.Node->Type, WalkState);
456 if (ACPI_FAILURE (Status))
457 {
458 return_ACPI_STATUS (Status);
459 }
460 }
461 }
462 break;
463
464 case AML_CLASS_EXECUTE:
465 case AML_CLASS_CREATE:
466
467 break;
468
469 default:
470
471 break;
472 }
473
474 /* Nothing to do here during method execution */
475
476 return_ACPI_STATUS (Status);
477
478
479 ErrorExit:
480 Status = AcpiDsMethodError (Status, WalkState);
481 return_ACPI_STATUS (Status);
482 }
483
484
485 /*****************************************************************************
486 *
487 * FUNCTION: AcpiDsExecEndOp
488 *
489 * PARAMETERS: WalkState - Current state of the parse tree walk
490 *
491 * RETURN: Status
492 *
493 * DESCRIPTION: Ascending callback used during the execution of control
494 * methods. The only thing we really need to do here is to
495 * notice the beginning of IF, ELSE, and WHILE blocks.
496 *
497 ****************************************************************************/
498
499 ACPI_STATUS
AcpiDsExecEndOp(ACPI_WALK_STATE * WalkState)500 AcpiDsExecEndOp (
501 ACPI_WALK_STATE *WalkState)
502 {
503 ACPI_PARSE_OBJECT *Op;
504 ACPI_STATUS Status = AE_OK;
505 UINT32 OpType;
506 UINT32 OpClass;
507 ACPI_PARSE_OBJECT *NextOp;
508 ACPI_PARSE_OBJECT *FirstArg;
509
510
511 ACPI_FUNCTION_TRACE_PTR (DsExecEndOp, WalkState);
512
513
514 Op = WalkState->Op;
515 OpType = WalkState->OpInfo->Type;
516 OpClass = WalkState->OpInfo->Class;
517
518 if (OpClass == AML_CLASS_UNKNOWN)
519 {
520 ACPI_ERROR ((AE_INFO, "Unknown opcode 0x%X", Op->Common.AmlOpcode));
521 return_ACPI_STATUS (AE_NOT_IMPLEMENTED);
522 }
523
524 FirstArg = Op->Common.Value.Arg;
525
526 /* Init the walk state */
527
528 WalkState->NumOperands = 0;
529 WalkState->OperandIndex = 0;
530 WalkState->ReturnDesc = NULL;
531 WalkState->ResultObj = NULL;
532
533 #ifdef ACPI_DEBUGGER
534 /* Call debugger for single step support (DEBUG build only) */
535
536 Status = AcpiDbSingleStep (WalkState, Op, OpClass);
537 if (ACPI_FAILURE (Status))
538 {
539 return_ACPI_STATUS (Status);
540 }
541 #endif
542
543 /* Decode the Opcode Class */
544
545 switch (OpClass)
546 {
547 case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */
548
549 if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
550 {
551 Status = AcpiDsEvaluateNamePath (WalkState);
552 if (ACPI_FAILURE (Status))
553 {
554 goto Cleanup;
555 }
556 }
557 break;
558
559 case AML_CLASS_EXECUTE: /* Most operators with arguments */
560
561 /* Build resolved operand stack */
562
563 Status = AcpiDsCreateOperands (WalkState, FirstArg);
564 if (ACPI_FAILURE (Status))
565 {
566 goto Cleanup;
567 }
568
569 /*
570 * All opcodes require operand resolution, with the only exceptions
571 * being the ObjectType and SizeOf operators.
572 */
573 if (!(WalkState->OpInfo->Flags & AML_NO_OPERAND_RESOLVE))
574 {
575 /* Resolve all operands */
576
577 Status = AcpiExResolveOperands (WalkState->Opcode,
578 &(WalkState->Operands [WalkState->NumOperands -1]),
579 WalkState);
580 }
581
582 if (ACPI_SUCCESS (Status))
583 {
584 /*
585 * Dispatch the request to the appropriate interpreter handler
586 * routine. There is one routine per opcode "type" based upon the
587 * number of opcode arguments and return type.
588 */
589 Status = AcpiGbl_OpTypeDispatch[OpType] (WalkState);
590 }
591 else
592 {
593 /*
594 * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
595 * Local is uninitialized.
596 */
597 if ((Status == AE_AML_UNINITIALIZED_LOCAL) &&
598 (WalkState->Opcode == AML_STORE_OP) &&
599 (WalkState->Operands[0]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
600 (WalkState->Operands[1]->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
601 (WalkState->Operands[0]->Reference.Class ==
602 WalkState->Operands[1]->Reference.Class) &&
603 (WalkState->Operands[0]->Reference.Value ==
604 WalkState->Operands[1]->Reference.Value))
605 {
606 Status = AE_OK;
607 }
608 else
609 {
610 ACPI_EXCEPTION ((AE_INFO, Status,
611 "While resolving operands for [%s]",
612 AcpiPsGetOpcodeName (WalkState->Opcode)));
613 }
614 }
615
616 /* Always delete the argument objects and clear the operand stack */
617
618 AcpiDsClearOperands (WalkState);
619
620 /*
621 * If a result object was returned from above, push it on the
622 * current result stack
623 */
624 if (ACPI_SUCCESS (Status) &&
625 WalkState->ResultObj)
626 {
627 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState);
628 }
629 break;
630
631 default:
632
633 switch (OpType)
634 {
635 case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */
636
637 /* 1 Operand, 0 ExternalResult, 0 InternalResult */
638
639 Status = AcpiDsExecEndControlOp (WalkState, Op);
640
641 break;
642
643 case AML_TYPE_METHOD_CALL:
644 /*
645 * If the method is referenced from within a package
646 * declaration, it is not a invocation of the method, just
647 * a reference to it.
648 */
649 if ((Op->Asl.Parent) &&
650 ((Op->Asl.Parent->Asl.AmlOpcode == AML_PACKAGE_OP) ||
651 (Op->Asl.Parent->Asl.AmlOpcode == AML_VARIABLE_PACKAGE_OP)))
652 {
653 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
654 "Method Reference in a Package, Op=%p\n", Op));
655
656 Op->Common.Node = (ACPI_NAMESPACE_NODE *)
657 Op->Asl.Value.Arg->Asl.Node;
658 AcpiUtAddReference (Op->Asl.Value.Arg->Asl.Node->Object);
659 return_ACPI_STATUS (AE_OK);
660 }
661
662 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
663 "Method invocation, Op=%p\n", Op));
664
665 /*
666 * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains
667 * the method Node pointer
668 */
669 /* NextOp points to the op that holds the method name */
670
671 NextOp = FirstArg;
672
673 /* NextOp points to first argument op */
674
675 NextOp = NextOp->Common.Next;
676
677 /*
678 * Get the method's arguments and put them on the operand stack
679 */
680 Status = AcpiDsCreateOperands (WalkState, NextOp);
681 if (ACPI_FAILURE (Status))
682 {
683 break;
684 }
685
686 /*
687 * Since the operands will be passed to another control method,
688 * we must resolve all local references here (Local variables,
689 * arguments to *this* method, etc.)
690 */
691 Status = AcpiDsResolveOperands (WalkState);
692 if (ACPI_FAILURE (Status))
693 {
694 /* On error, clear all resolved operands */
695
696 AcpiDsClearOperands (WalkState);
697 break;
698 }
699
700 /*
701 * Tell the walk loop to preempt this running method and
702 * execute the new method
703 */
704 Status = AE_CTRL_TRANSFER;
705
706 /*
707 * Return now; we don't want to disturb anything,
708 * especially the operand count!
709 */
710 return_ACPI_STATUS (Status);
711
712 case AML_TYPE_CREATE_FIELD:
713
714 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
715 "Executing CreateField Buffer/Index Op=%p\n", Op));
716
717 Status = AcpiDsLoad2EndOp (WalkState);
718 if (ACPI_FAILURE (Status))
719 {
720 break;
721 }
722
723 Status = AcpiDsEvalBufferFieldOperands (WalkState, Op);
724 break;
725
726
727 case AML_TYPE_CREATE_OBJECT:
728
729 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
730 "Executing CreateObject (Buffer/Package) Op=%p Child=%p ParentOpcode=%4.4X\n",
731 Op, Op->Named.Value.Arg, Op->Common.Parent->Common.AmlOpcode));
732
733 switch (Op->Common.Parent->Common.AmlOpcode)
734 {
735 case AML_NAME_OP:
736 /*
737 * Put the Node on the object stack (Contains the ACPI Name
738 * of this object)
739 */
740 WalkState->Operands[0] = (void *)
741 Op->Common.Parent->Common.Node;
742 WalkState->NumOperands = 1;
743
744 Status = AcpiDsCreateNode (WalkState,
745 Op->Common.Parent->Common.Node, Op->Common.Parent);
746 if (ACPI_FAILURE (Status))
747 {
748 break;
749 }
750
751 /* Fall through */
752 /*lint -fallthrough */
753
754 case AML_INT_EVAL_SUBTREE_OP:
755
756 Status = AcpiDsEvalDataObjectOperands (WalkState, Op,
757 AcpiNsGetAttachedObject (Op->Common.Parent->Common.Node));
758 break;
759
760 default:
761
762 Status = AcpiDsEvalDataObjectOperands (WalkState, Op, NULL);
763 break;
764 }
765
766 /*
767 * If a result object was returned from above, push it on the
768 * current result stack
769 */
770 if (WalkState->ResultObj)
771 {
772 Status = AcpiDsResultPush (WalkState->ResultObj, WalkState);
773 }
774 break;
775
776 case AML_TYPE_NAMED_FIELD:
777 case AML_TYPE_NAMED_COMPLEX:
778 case AML_TYPE_NAMED_SIMPLE:
779 case AML_TYPE_NAMED_NO_OBJ:
780
781 Status = AcpiDsLoad2EndOp (WalkState);
782 if (ACPI_FAILURE (Status))
783 {
784 break;
785 }
786
787 if (Op->Common.AmlOpcode == AML_REGION_OP)
788 {
789 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
790 "Executing OpRegion Address/Length Op=%p\n", Op));
791
792 Status = AcpiDsEvalRegionOperands (WalkState, Op);
793 if (ACPI_FAILURE (Status))
794 {
795 break;
796 }
797 }
798 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP)
799 {
800 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
801 "Executing DataTableRegion Strings Op=%p\n", Op));
802
803 Status = AcpiDsEvalTableRegionOperands (WalkState, Op);
804 if (ACPI_FAILURE (Status))
805 {
806 break;
807 }
808 }
809 else if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP)
810 {
811 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
812 "Executing BankField Op=%p\n", Op));
813
814 Status = AcpiDsEvalBankFieldOperands (WalkState, Op);
815 if (ACPI_FAILURE (Status))
816 {
817 break;
818 }
819 }
820 break;
821
822 case AML_TYPE_UNDEFINED:
823
824 ACPI_ERROR ((AE_INFO,
825 "Undefined opcode type Op=%p", Op));
826 return_ACPI_STATUS (AE_NOT_IMPLEMENTED);
827
828 case AML_TYPE_BOGUS:
829
830 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
831 "Internal opcode=%X type Op=%p\n",
832 WalkState->Opcode, Op));
833 break;
834
835 default:
836
837 ACPI_ERROR ((AE_INFO,
838 "Unimplemented opcode, class=0x%X "
839 "type=0x%X Opcode=0x%X Op=%p",
840 OpClass, OpType, Op->Common.AmlOpcode, Op));
841
842 Status = AE_NOT_IMPLEMENTED;
843 break;
844 }
845 }
846
847 /*
848 * ACPI 2.0 support for 64-bit integers: Truncate numeric
849 * result value if we are executing from a 32-bit ACPI table
850 */
851 (void) AcpiExTruncateFor32bitTable (WalkState->ResultObj);
852
853 /*
854 * Check if we just completed the evaluation of a
855 * conditional predicate
856 */
857 if ((ACPI_SUCCESS (Status)) &&
858 (WalkState->ControlState) &&
859 (WalkState->ControlState->Common.State ==
860 ACPI_CONTROL_PREDICATE_EXECUTING) &&
861 (WalkState->ControlState->Control.PredicateOp == Op))
862 {
863 Status = AcpiDsGetPredicateValue (WalkState, WalkState->ResultObj);
864 WalkState->ResultObj = NULL;
865 }
866
867
868 Cleanup:
869
870 if (WalkState->ResultObj)
871 {
872 #ifdef ACPI_DEBUGGER
873 /* Break to debugger to display result */
874
875 AcpiDbDisplayResultObject (WalkState->ResultObj,WalkState);
876 #endif
877
878 /*
879 * Delete the result op if and only if:
880 * Parent will not use the result -- such as any
881 * non-nested type2 op in a method (parent will be method)
882 */
883 AcpiDsDeleteResultIfNotUsed (Op, WalkState->ResultObj, WalkState);
884 }
885
886 #ifdef _UNDER_DEVELOPMENT
887
888 if (WalkState->ParserState.Aml == WalkState->ParserState.AmlEnd)
889 {
890 AcpiDbMethodEnd (WalkState);
891 }
892 #endif
893
894 /* Invoke exception handler on error */
895
896 if (ACPI_FAILURE (Status))
897 {
898 Status = AcpiDsMethodError (Status, WalkState);
899 }
900
901 /* Always clear the object stack */
902
903 WalkState->NumOperands = 0;
904 return_ACPI_STATUS (Status);
905 }
906