1 /******************************************************************************
2 *
3 * Module Name: dsopcode - Dispatcher support for regions and fields
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2023, 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 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 #include "acpi.h"
153 #include "accommon.h"
154 #include "acparser.h"
155 #include "amlcode.h"
156 #include "acdispat.h"
157 #include "acinterp.h"
158 #include "acnamesp.h"
159 #include "acevents.h"
160 #include "actables.h"
161
162 #define _COMPONENT ACPI_DISPATCHER
163 ACPI_MODULE_NAME ("dsopcode")
164
165 /* Local prototypes */
166
167 static ACPI_STATUS
168 AcpiDsInitBufferField (
169 UINT16 AmlOpcode,
170 ACPI_OPERAND_OBJECT *ObjDesc,
171 ACPI_OPERAND_OBJECT *BufferDesc,
172 ACPI_OPERAND_OBJECT *OffsetDesc,
173 ACPI_OPERAND_OBJECT *LengthDesc,
174 ACPI_OPERAND_OBJECT *ResultDesc);
175
176
177 /*******************************************************************************
178 *
179 * FUNCTION: AcpiDsInitializeRegion
180 *
181 * PARAMETERS: ObjHandle - Region namespace node
182 *
183 * RETURN: Status
184 *
185 * DESCRIPTION: Front end to EvInitializeRegion
186 *
187 ******************************************************************************/
188
189 ACPI_STATUS
AcpiDsInitializeRegion(ACPI_HANDLE ObjHandle)190 AcpiDsInitializeRegion (
191 ACPI_HANDLE ObjHandle)
192 {
193 ACPI_OPERAND_OBJECT *ObjDesc;
194 ACPI_STATUS Status;
195
196
197 ObjDesc = AcpiNsGetAttachedObject (ObjHandle);
198
199 /* Namespace is NOT locked */
200
201 Status = AcpiEvInitializeRegion (ObjDesc);
202 return (Status);
203 }
204
205
206 /*******************************************************************************
207 *
208 * FUNCTION: AcpiDsInitBufferField
209 *
210 * PARAMETERS: AmlOpcode - CreateXxxField
211 * ObjDesc - BufferField object
212 * BufferDesc - Host Buffer
213 * OffsetDesc - Offset into buffer
214 * LengthDesc - Length of field (CREATE_FIELD_OP only)
215 * ResultDesc - Where to store the result
216 *
217 * RETURN: Status
218 *
219 * DESCRIPTION: Perform actual initialization of a buffer field
220 *
221 ******************************************************************************/
222
223 static ACPI_STATUS
AcpiDsInitBufferField(UINT16 AmlOpcode,ACPI_OPERAND_OBJECT * ObjDesc,ACPI_OPERAND_OBJECT * BufferDesc,ACPI_OPERAND_OBJECT * OffsetDesc,ACPI_OPERAND_OBJECT * LengthDesc,ACPI_OPERAND_OBJECT * ResultDesc)224 AcpiDsInitBufferField (
225 UINT16 AmlOpcode,
226 ACPI_OPERAND_OBJECT *ObjDesc,
227 ACPI_OPERAND_OBJECT *BufferDesc,
228 ACPI_OPERAND_OBJECT *OffsetDesc,
229 ACPI_OPERAND_OBJECT *LengthDesc,
230 ACPI_OPERAND_OBJECT *ResultDesc)
231 {
232 UINT32 Offset;
233 UINT32 BitOffset;
234 UINT32 BitCount;
235 UINT8 FieldFlags;
236 ACPI_STATUS Status;
237
238
239 ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc);
240
241
242 /* Host object must be a Buffer */
243
244 if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER)
245 {
246 ACPI_ERROR ((AE_INFO,
247 "Target of Create Field is not a Buffer object - %s",
248 AcpiUtGetObjectTypeName (BufferDesc)));
249
250 Status = AE_AML_OPERAND_TYPE;
251 goto Cleanup;
252 }
253
254 /*
255 * The last parameter to all of these opcodes (ResultDesc) started
256 * out as a NameString, and should therefore now be a NS node
257 * after resolution in AcpiExResolveOperands().
258 */
259 if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED)
260 {
261 ACPI_ERROR ((AE_INFO,
262 "(%s) destination not a NS Node [%s]",
263 AcpiPsGetOpcodeName (AmlOpcode),
264 AcpiUtGetDescriptorName (ResultDesc)));
265
266 Status = AE_AML_OPERAND_TYPE;
267 goto Cleanup;
268 }
269
270 Offset = (UINT32) OffsetDesc->Integer.Value;
271
272 /*
273 * Setup the Bit offsets and counts, according to the opcode
274 */
275 switch (AmlOpcode)
276 {
277 case AML_CREATE_FIELD_OP:
278
279 /* Offset is in bits, count is in bits */
280
281 FieldFlags = AML_FIELD_ACCESS_BYTE;
282 BitOffset = Offset;
283 BitCount = (UINT32) LengthDesc->Integer.Value;
284
285 /* Must have a valid (>0) bit count */
286
287 if (BitCount == 0)
288 {
289 ACPI_BIOS_ERROR ((AE_INFO,
290 "Attempt to CreateField of length zero"));
291 Status = AE_AML_OPERAND_VALUE;
292 goto Cleanup;
293 }
294 break;
295
296 case AML_CREATE_BIT_FIELD_OP:
297
298 /* Offset is in bits, Field is one bit */
299
300 BitOffset = Offset;
301 BitCount = 1;
302 FieldFlags = AML_FIELD_ACCESS_BYTE;
303 break;
304
305 case AML_CREATE_BYTE_FIELD_OP:
306
307 /* Offset is in bytes, field is one byte */
308
309 BitOffset = 8 * Offset;
310 BitCount = 8;
311 FieldFlags = AML_FIELD_ACCESS_BYTE;
312 break;
313
314 case AML_CREATE_WORD_FIELD_OP:
315
316 /* Offset is in bytes, field is one word */
317
318 BitOffset = 8 * Offset;
319 BitCount = 16;
320 FieldFlags = AML_FIELD_ACCESS_WORD;
321 break;
322
323 case AML_CREATE_DWORD_FIELD_OP:
324
325 /* Offset is in bytes, field is one dword */
326
327 BitOffset = 8 * Offset;
328 BitCount = 32;
329 FieldFlags = AML_FIELD_ACCESS_DWORD;
330 break;
331
332 case AML_CREATE_QWORD_FIELD_OP:
333
334 /* Offset is in bytes, field is one qword */
335
336 BitOffset = 8 * Offset;
337 BitCount = 64;
338 FieldFlags = AML_FIELD_ACCESS_QWORD;
339 break;
340
341 default:
342
343 ACPI_ERROR ((AE_INFO,
344 "Unknown field creation opcode 0x%02X",
345 AmlOpcode));
346 Status = AE_AML_BAD_OPCODE;
347 goto Cleanup;
348 }
349
350 /* Entire field must fit within the current length of the buffer */
351
352 if ((BitOffset + BitCount) >
353 (8 * (UINT32) BufferDesc->Buffer.Length))
354 {
355 Status = AE_AML_BUFFER_LIMIT;
356 ACPI_BIOS_EXCEPTION ((AE_INFO, Status,
357 "Field [%4.4s] at bit offset/length %u/%u "
358 "exceeds size of target Buffer (%u bits)",
359 AcpiUtGetNodeName (ResultDesc), BitOffset, BitCount,
360 8 * (UINT32) BufferDesc->Buffer.Length));
361 goto Cleanup;
362 }
363
364 /*
365 * Initialize areas of the field object that are common to all fields
366 * For FieldFlags, use LOCK_RULE = 0 (NO_LOCK),
367 * UPDATE_RULE = 0 (UPDATE_PRESERVE)
368 */
369 Status = AcpiExPrepCommonFieldObject (
370 ObjDesc, FieldFlags, 0, BitOffset, BitCount);
371 if (ACPI_FAILURE (Status))
372 {
373 goto Cleanup;
374 }
375
376 ObjDesc->BufferField.BufferObj = BufferDesc;
377 ObjDesc->BufferField.IsCreateField = AmlOpcode == AML_CREATE_FIELD_OP;
378
379 /* Reference count for BufferDesc inherits ObjDesc count */
380
381 BufferDesc->Common.ReferenceCount = (UINT16)
382 (BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount);
383
384
385 Cleanup:
386
387 /* Always delete the operands */
388
389 AcpiUtRemoveReference (OffsetDesc);
390 AcpiUtRemoveReference (BufferDesc);
391
392 if (AmlOpcode == AML_CREATE_FIELD_OP)
393 {
394 AcpiUtRemoveReference (LengthDesc);
395 }
396
397 /* On failure, delete the result descriptor */
398
399 if (ACPI_FAILURE (Status))
400 {
401 AcpiUtRemoveReference (ResultDesc); /* Result descriptor */
402 }
403 else
404 {
405 /* Now the address and length are valid for this BufferField */
406
407 ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID;
408 }
409
410 return_ACPI_STATUS (Status);
411 }
412
413
414 /*******************************************************************************
415 *
416 * FUNCTION: AcpiDsEvalBufferFieldOperands
417 *
418 * PARAMETERS: WalkState - Current walk
419 * Op - A valid BufferField Op object
420 *
421 * RETURN: Status
422 *
423 * DESCRIPTION: Get BufferField Buffer and Index
424 * Called from AcpiDsExecEndOp during BufferField parse tree walk
425 *
426 ******************************************************************************/
427
428 ACPI_STATUS
AcpiDsEvalBufferFieldOperands(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)429 AcpiDsEvalBufferFieldOperands (
430 ACPI_WALK_STATE *WalkState,
431 ACPI_PARSE_OBJECT *Op)
432 {
433 ACPI_STATUS Status;
434 ACPI_OPERAND_OBJECT *ObjDesc;
435 ACPI_NAMESPACE_NODE *Node;
436 ACPI_PARSE_OBJECT *NextOp;
437
438
439 ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op);
440
441
442 /*
443 * This is where we evaluate the address and length fields of the
444 * CreateXxxField declaration
445 */
446 Node = Op->Common.Node;
447
448 /* NextOp points to the op that holds the Buffer */
449
450 NextOp = Op->Common.Value.Arg;
451
452 /* Evaluate/create the address and length operands */
453
454 Status = AcpiDsCreateOperands (WalkState, NextOp);
455 if (ACPI_FAILURE (Status))
456 {
457 return_ACPI_STATUS (Status);
458 }
459
460 ObjDesc = AcpiNsGetAttachedObject (Node);
461 if (!ObjDesc)
462 {
463 return_ACPI_STATUS (AE_NOT_EXIST);
464 }
465
466 /* Resolve the operands */
467
468 Status = AcpiExResolveOperands (
469 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState);
470 if (ACPI_FAILURE (Status))
471 {
472 ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X",
473 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status));
474
475 return_ACPI_STATUS (Status);
476 }
477
478 /* Initialize the Buffer Field */
479
480 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
481 {
482 /* NOTE: Slightly different operands for this opcode */
483
484 Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
485 WalkState->Operands[0], WalkState->Operands[1],
486 WalkState->Operands[2], WalkState->Operands[3]);
487 }
488 else
489 {
490 /* All other, CreateXxxField opcodes */
491
492 Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
493 WalkState->Operands[0], WalkState->Operands[1],
494 NULL, WalkState->Operands[2]);
495 }
496
497 return_ACPI_STATUS (Status);
498 }
499
500
501 /*******************************************************************************
502 *
503 * FUNCTION: AcpiDsEvalRegionOperands
504 *
505 * PARAMETERS: WalkState - Current walk
506 * Op - A valid region Op object
507 *
508 * RETURN: Status
509 *
510 * DESCRIPTION: Get region address and length
511 * Called from AcpiDsExecEndOp during OpRegion parse tree walk
512 *
513 ******************************************************************************/
514
515 ACPI_STATUS
AcpiDsEvalRegionOperands(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)516 AcpiDsEvalRegionOperands (
517 ACPI_WALK_STATE *WalkState,
518 ACPI_PARSE_OBJECT *Op)
519 {
520 ACPI_STATUS Status;
521 ACPI_OPERAND_OBJECT *ObjDesc;
522 ACPI_OPERAND_OBJECT *OperandDesc;
523 ACPI_NAMESPACE_NODE *Node;
524 ACPI_PARSE_OBJECT *NextOp;
525 ACPI_ADR_SPACE_TYPE SpaceId;
526
527
528 ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op);
529
530
531 /*
532 * This is where we evaluate the address and length fields of the
533 * OpRegion declaration
534 */
535 Node = Op->Common.Node;
536
537 /* NextOp points to the op that holds the SpaceID */
538
539 NextOp = Op->Common.Value.Arg;
540 SpaceId = (ACPI_ADR_SPACE_TYPE) NextOp->Common.Value.Integer;
541
542 /* NextOp points to address op */
543
544 NextOp = NextOp->Common.Next;
545
546 /* Evaluate/create the address and length operands */
547
548 Status = AcpiDsCreateOperands (WalkState, NextOp);
549 if (ACPI_FAILURE (Status))
550 {
551 return_ACPI_STATUS (Status);
552 }
553
554 /* Resolve the length and address operands to numbers */
555
556 Status = AcpiExResolveOperands (
557 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState);
558 if (ACPI_FAILURE (Status))
559 {
560 return_ACPI_STATUS (Status);
561 }
562
563 ObjDesc = AcpiNsGetAttachedObject (Node);
564 if (!ObjDesc)
565 {
566 return_ACPI_STATUS (AE_NOT_EXIST);
567 }
568
569 /*
570 * Get the length operand and save it
571 * (at Top of stack)
572 */
573 OperandDesc = WalkState->Operands[WalkState->NumOperands - 1];
574
575 ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value;
576 AcpiUtRemoveReference (OperandDesc);
577
578 /* A zero-length operation region is unusable. Just warn */
579
580 if (!ObjDesc->Region.Length && (SpaceId < ACPI_NUM_PREDEFINED_REGIONS))
581 {
582 ACPI_WARNING ((AE_INFO,
583 "Operation Region [%4.4s] has zero length (SpaceId %X)",
584 Node->Name.Ascii, SpaceId));
585 }
586
587 /*
588 * Get the address and save it
589 * (at top of stack - 1)
590 */
591 OperandDesc = WalkState->Operands[WalkState->NumOperands - 2];
592
593 ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS)
594 OperandDesc->Integer.Value;
595 AcpiUtRemoveReference (OperandDesc);
596
597 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
598 ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address),
599 ObjDesc->Region.Length));
600
601 Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
602 ObjDesc->Region.Address, ObjDesc->Region.Length, Node);
603
604 /* Now the address and length are valid for this opregion */
605
606 ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
607 return_ACPI_STATUS (Status);
608 }
609
610
611 /*******************************************************************************
612 *
613 * FUNCTION: AcpiDsEvalTableRegionOperands
614 *
615 * PARAMETERS: WalkState - Current walk
616 * Op - A valid region Op object
617 *
618 * RETURN: Status
619 *
620 * DESCRIPTION: Get region address and length.
621 * Called from AcpiDsExecEndOp during DataTableRegion parse
622 * tree walk.
623 *
624 ******************************************************************************/
625
626 ACPI_STATUS
AcpiDsEvalTableRegionOperands(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)627 AcpiDsEvalTableRegionOperands (
628 ACPI_WALK_STATE *WalkState,
629 ACPI_PARSE_OBJECT *Op)
630 {
631 ACPI_STATUS Status;
632 ACPI_OPERAND_OBJECT *ObjDesc;
633 ACPI_OPERAND_OBJECT **Operand;
634 ACPI_NAMESPACE_NODE *Node;
635 ACPI_PARSE_OBJECT *NextOp;
636 ACPI_TABLE_HEADER *Table;
637 UINT32 TableIndex;
638
639
640 ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);
641
642
643 /*
644 * This is where we evaluate the Signature string, OemId string,
645 * and OemTableId string of the Data Table Region declaration
646 */
647 Node = Op->Common.Node;
648
649 /* NextOp points to Signature string op */
650
651 NextOp = Op->Common.Value.Arg;
652
653 /*
654 * Evaluate/create the Signature string, OemId string,
655 * and OemTableId string operands
656 */
657 Status = AcpiDsCreateOperands (WalkState, NextOp);
658 if (ACPI_FAILURE (Status))
659 {
660 return_ACPI_STATUS (Status);
661 }
662
663 Operand = &WalkState->Operands[0];
664
665 /*
666 * Resolve the Signature string, OemId string,
667 * and OemTableId string operands
668 */
669 Status = AcpiExResolveOperands (
670 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState);
671 if (ACPI_FAILURE (Status))
672 {
673 goto Cleanup;
674 }
675
676 /* Find the ACPI table */
677
678 Status = AcpiTbFindTable (
679 Operand[0]->String.Pointer,
680 Operand[1]->String.Pointer,
681 Operand[2]->String.Pointer, &TableIndex);
682 if (ACPI_FAILURE (Status))
683 {
684 if (Status == AE_NOT_FOUND)
685 {
686 ACPI_ERROR ((AE_INFO,
687 "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT",
688 Operand[0]->String.Pointer,
689 Operand[1]->String.Pointer,
690 Operand[2]->String.Pointer));
691 }
692 goto Cleanup;
693 }
694
695 Status = AcpiGetTableByIndex (TableIndex, &Table);
696 if (ACPI_FAILURE (Status))
697 {
698 goto Cleanup;
699 }
700
701 ObjDesc = AcpiNsGetAttachedObject (Node);
702 if (!ObjDesc)
703 {
704 Status = AE_NOT_EXIST;
705 goto Cleanup;
706 }
707
708 ObjDesc->Region.Address = ACPI_PTR_TO_PHYSADDR (Table);
709 ObjDesc->Region.Length = Table->Length;
710 ObjDesc->Region.Pointer = Table;
711
712 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
713 ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address),
714 ObjDesc->Region.Length));
715
716 /* Now the address and length are valid for this opregion */
717
718 ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
719
720 Cleanup:
721 AcpiUtRemoveReference (Operand[0]);
722 AcpiUtRemoveReference (Operand[1]);
723 AcpiUtRemoveReference (Operand[2]);
724
725 return_ACPI_STATUS (Status);
726 }
727
728
729 /*******************************************************************************
730 *
731 * FUNCTION: AcpiDsEvalDataObjectOperands
732 *
733 * PARAMETERS: WalkState - Current walk
734 * Op - A valid DataObject Op object
735 * ObjDesc - DataObject
736 *
737 * RETURN: Status
738 *
739 * DESCRIPTION: Get the operands and complete the following data object types:
740 * Buffer, Package.
741 *
742 ******************************************************************************/
743
744 ACPI_STATUS
AcpiDsEvalDataObjectOperands(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op,ACPI_OPERAND_OBJECT * ObjDesc)745 AcpiDsEvalDataObjectOperands (
746 ACPI_WALK_STATE *WalkState,
747 ACPI_PARSE_OBJECT *Op,
748 ACPI_OPERAND_OBJECT *ObjDesc)
749 {
750 ACPI_STATUS Status;
751 ACPI_OPERAND_OBJECT *ArgDesc;
752 UINT32 Length;
753
754
755 ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands);
756
757
758 /* The first operand (for all of these data objects) is the length */
759
760 /*
761 * Set proper index into operand stack for AcpiDsObjStackPush
762 * invoked inside AcpiDsCreateOperand.
763 */
764 WalkState->OperandIndex = WalkState->NumOperands;
765
766 /* Ignore if child is not valid */
767
768 if (!Op->Common.Value.Arg)
769 {
770 ACPI_ERROR ((AE_INFO,
771 "Missing child while evaluating opcode %4.4X, Op %p",
772 Op->Common.AmlOpcode, Op));
773 return_ACPI_STATUS (AE_OK);
774 }
775
776 Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1);
777 if (ACPI_FAILURE (Status))
778 {
779 return_ACPI_STATUS (Status);
780 }
781
782 Status = AcpiExResolveOperands (WalkState->Opcode,
783 &(WalkState->Operands [WalkState->NumOperands -1]),
784 WalkState);
785 if (ACPI_FAILURE (Status))
786 {
787 return_ACPI_STATUS (Status);
788 }
789
790 /* Extract length operand */
791
792 ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
793 Length = (UINT32) ArgDesc->Integer.Value;
794
795 /* Cleanup for length operand */
796
797 Status = AcpiDsObjStackPop (1, WalkState);
798 if (ACPI_FAILURE (Status))
799 {
800 return_ACPI_STATUS (Status);
801 }
802
803 AcpiUtRemoveReference (ArgDesc);
804
805 /*
806 * Create the actual data object
807 */
808 switch (Op->Common.AmlOpcode)
809 {
810 case AML_BUFFER_OP:
811
812 Status = AcpiDsBuildInternalBufferObj (
813 WalkState, Op, Length, &ObjDesc);
814 break;
815
816 case AML_PACKAGE_OP:
817 case AML_VARIABLE_PACKAGE_OP:
818
819 Status = AcpiDsBuildInternalPackageObj (
820 WalkState, Op, Length, &ObjDesc);
821 break;
822
823 default:
824
825 return_ACPI_STATUS (AE_AML_BAD_OPCODE);
826 }
827
828 if (ACPI_SUCCESS (Status))
829 {
830 /*
831 * Return the object in the WalkState, unless the parent is a package -
832 * in this case, the return object will be stored in the parse tree
833 * for the package.
834 */
835 if ((!Op->Common.Parent) ||
836 ((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) &&
837 (Op->Common.Parent->Common.AmlOpcode != AML_VARIABLE_PACKAGE_OP) &&
838 (Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP)))
839 {
840 WalkState->ResultObj = ObjDesc;
841 }
842 }
843
844 return_ACPI_STATUS (Status);
845 }
846
847
848 /*******************************************************************************
849 *
850 * FUNCTION: AcpiDsEvalBankFieldOperands
851 *
852 * PARAMETERS: WalkState - Current walk
853 * Op - A valid BankField Op object
854 *
855 * RETURN: Status
856 *
857 * DESCRIPTION: Get BankField BankValue
858 * Called from AcpiDsExecEndOp during BankField parse tree walk
859 *
860 ******************************************************************************/
861
862 ACPI_STATUS
AcpiDsEvalBankFieldOperands(ACPI_WALK_STATE * WalkState,ACPI_PARSE_OBJECT * Op)863 AcpiDsEvalBankFieldOperands (
864 ACPI_WALK_STATE *WalkState,
865 ACPI_PARSE_OBJECT *Op)
866 {
867 ACPI_STATUS Status;
868 ACPI_OPERAND_OBJECT *ObjDesc;
869 ACPI_OPERAND_OBJECT *OperandDesc;
870 ACPI_NAMESPACE_NODE *Node;
871 ACPI_PARSE_OBJECT *NextOp;
872 ACPI_PARSE_OBJECT *Arg;
873
874
875 ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op);
876
877
878 /*
879 * This is where we evaluate the BankValue field of the
880 * BankField declaration
881 */
882
883 /* NextOp points to the op that holds the Region */
884
885 NextOp = Op->Common.Value.Arg;
886
887 /* NextOp points to the op that holds the Bank Register */
888
889 NextOp = NextOp->Common.Next;
890
891 /* NextOp points to the op that holds the Bank Value */
892
893 NextOp = NextOp->Common.Next;
894
895 /*
896 * Set proper index into operand stack for AcpiDsObjStackPush
897 * invoked inside AcpiDsCreateOperand.
898 *
899 * We use WalkState->Operands[0] to store the evaluated BankValue
900 */
901 WalkState->OperandIndex = 0;
902
903 Status = AcpiDsCreateOperand (WalkState, NextOp, 0);
904 if (ACPI_FAILURE (Status))
905 {
906 return_ACPI_STATUS (Status);
907 }
908
909 Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState);
910 if (ACPI_FAILURE (Status))
911 {
912 return_ACPI_STATUS (Status);
913 }
914
915 ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS,
916 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1);
917 /*
918 * Get the BankValue operand and save it
919 * (at Top of stack)
920 */
921 OperandDesc = WalkState->Operands[0];
922
923 /* Arg points to the start Bank Field */
924
925 Arg = AcpiPsGetArg (Op, 4);
926 while (Arg)
927 {
928 /* Ignore OFFSET and ACCESSAS terms here */
929
930 if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
931 {
932 Node = Arg->Common.Node;
933
934 ObjDesc = AcpiNsGetAttachedObject (Node);
935 if (!ObjDesc)
936 {
937 return_ACPI_STATUS (AE_NOT_EXIST);
938 }
939
940 ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value;
941 }
942
943 /* Move to next field in the list */
944
945 Arg = Arg->Common.Next;
946 }
947
948 AcpiUtRemoveReference (OperandDesc);
949 return_ACPI_STATUS (Status);
950 }
951
