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44
45#include <acpi/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
54#define _COMPONENT ACPI_DISPATCHER
55ACPI_MODULE_NAME("dswexec")
56
57
58
59
60static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = {
61 acpi_ex_opcode_0A_0T_1R,
62 acpi_ex_opcode_1A_0T_0R,
63 acpi_ex_opcode_1A_0T_1R,
64 acpi_ex_opcode_1A_1T_0R,
65 acpi_ex_opcode_1A_1T_1R,
66 acpi_ex_opcode_2A_0T_0R,
67 acpi_ex_opcode_2A_0T_1R,
68 acpi_ex_opcode_2A_1T_1R,
69 acpi_ex_opcode_2A_2T_1R,
70 acpi_ex_opcode_3A_0T_0R,
71 acpi_ex_opcode_3A_1T_1R,
72 acpi_ex_opcode_6A_0T_1R
73};
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88acpi_status
89acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
90 union acpi_operand_object *result_obj)
91{
92 acpi_status status = AE_OK;
93 union acpi_operand_object *obj_desc;
94 union acpi_operand_object *local_obj_desc = NULL;
95
96 ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state);
97
98 walk_state->control_state->common.state = 0;
99
100 if (result_obj) {
101 status = acpi_ds_result_pop(&obj_desc, walk_state);
102 if (ACPI_FAILURE(status)) {
103 ACPI_EXCEPTION((AE_INFO, status,
104 "Could not get result from predicate evaluation"));
105
106 return_ACPI_STATUS(status);
107 }
108 } else {
109 status = acpi_ds_create_operand(walk_state, walk_state->op, 0);
110 if (ACPI_FAILURE(status)) {
111 return_ACPI_STATUS(status);
112 }
113
114 status =
115 acpi_ex_resolve_to_value(&walk_state->operands[0],
116 walk_state);
117 if (ACPI_FAILURE(status)) {
118 return_ACPI_STATUS(status);
119 }
120
121 obj_desc = walk_state->operands[0];
122 }
123
124 if (!obj_desc) {
125 ACPI_ERROR((AE_INFO,
126 "No predicate ObjDesc=%p State=%p",
127 obj_desc, walk_state));
128
129 return_ACPI_STATUS(AE_AML_NO_OPERAND);
130 }
131
132
133
134
135
136 status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16);
137 if (ACPI_FAILURE(status)) {
138 goto cleanup;
139 }
140
141 if (local_obj_desc->common.type != ACPI_TYPE_INTEGER) {
142 ACPI_ERROR((AE_INFO,
143 "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X",
144 obj_desc, walk_state, obj_desc->common.type));
145
146 status = AE_AML_OPERAND_TYPE;
147 goto cleanup;
148 }
149
150
151
152 acpi_ex_truncate_for32bit_table(local_obj_desc);
153
154
155
156
157
158 if (local_obj_desc->integer.value) {
159 walk_state->control_state->common.value = TRUE;
160 } else {
161
162
163
164
165 walk_state->control_state->common.value = FALSE;
166 status = AE_CTRL_FALSE;
167 }
168
169
170
171 (void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE);
172
173 cleanup:
174
175 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
176 walk_state->control_state->common.value,
177 walk_state->op));
178
179
180
181 ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
182 (local_obj_desc, walk_state));
183
184
185
186
187
188 if (local_obj_desc != obj_desc) {
189 acpi_ut_remove_reference(local_obj_desc);
190 }
191 acpi_ut_remove_reference(obj_desc);
192
193 walk_state->control_state->common.state = ACPI_CONTROL_NORMAL;
194 return_ACPI_STATUS(status);
195}
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212acpi_status
213acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
214 union acpi_parse_object **out_op)
215{
216 union acpi_parse_object *op;
217 acpi_status status = AE_OK;
218 u32 opcode_class;
219
220 ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state);
221
222 op = walk_state->op;
223 if (!op) {
224 status = acpi_ds_load2_begin_op(walk_state, out_op);
225 if (ACPI_FAILURE(status)) {
226 goto error_exit;
227 }
228
229 op = *out_op;
230 walk_state->op = op;
231 walk_state->opcode = op->common.aml_opcode;
232 walk_state->op_info =
233 acpi_ps_get_opcode_info(op->common.aml_opcode);
234
235 if (acpi_ns_opens_scope(walk_state->op_info->object_type)) {
236 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
237 "(%s) Popping scope for Op %p\n",
238 acpi_ut_get_type_name(walk_state->
239 op_info->
240 object_type),
241 op));
242
243 status = acpi_ds_scope_stack_pop(walk_state);
244 if (ACPI_FAILURE(status)) {
245 goto error_exit;
246 }
247 }
248 }
249
250 if (op == walk_state->origin) {
251 if (out_op) {
252 *out_op = op;
253 }
254
255 return_ACPI_STATUS(AE_OK);
256 }
257
258
259
260
261
262
263 if ((walk_state->control_state) &&
264 (walk_state->control_state->common.state ==
265 ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
266 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
267 "Exec predicate Op=%p State=%p\n", op,
268 walk_state));
269
270 walk_state->control_state->common.state =
271 ACPI_CONTROL_PREDICATE_EXECUTING;
272
273
274
275 walk_state->control_state->control.predicate_op = op;
276 }
277
278 opcode_class = walk_state->op_info->class;
279
280
281
282 if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
283 opcode_class = AML_CLASS_NAMED_OBJECT;
284 }
285
286
287
288
289 switch (opcode_class) {
290 case AML_CLASS_CONTROL:
291
292 status = acpi_ds_exec_begin_control_op(walk_state, op);
293 break;
294
295 case AML_CLASS_NAMED_OBJECT:
296
297 if (walk_state->walk_type & ACPI_WALK_METHOD) {
298
299
300
301
302
303
304 status = acpi_ds_load2_begin_op(walk_state, NULL);
305 }
306
307 break;
308
309 case AML_CLASS_EXECUTE:
310 case AML_CLASS_CREATE:
311
312 break;
313
314 default:
315 break;
316 }
317
318
319
320 return_ACPI_STATUS(status);
321
322 error_exit:
323 status = acpi_ds_method_error(status, walk_state);
324 return_ACPI_STATUS(status);
325}
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
342{
343 union acpi_parse_object *op;
344 acpi_status status = AE_OK;
345 u32 op_type;
346 u32 op_class;
347 union acpi_parse_object *next_op;
348 union acpi_parse_object *first_arg;
349
350 ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
351
352 op = walk_state->op;
353 op_type = walk_state->op_info->type;
354 op_class = walk_state->op_info->class;
355
356 if (op_class == AML_CLASS_UNKNOWN) {
357 ACPI_ERROR((AE_INFO, "Unknown opcode %X",
358 op->common.aml_opcode));
359 return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
360 }
361
362 first_arg = op->common.value.arg;
363
364
365
366 walk_state->num_operands = 0;
367 walk_state->operand_index = 0;
368 walk_state->return_desc = NULL;
369 walk_state->result_obj = NULL;
370
371
372
373 ACPI_DEBUGGER_EXEC(status =
374 acpi_db_single_step(walk_state, op, op_class));
375 ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
376 return_ACPI_STATUS(status);}
377 ) ;
378
379
380
381 switch (op_class) {
382 case AML_CLASS_ARGUMENT:
383
384 if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
385 status = acpi_ds_evaluate_name_path(walk_state);
386 if (ACPI_FAILURE(status)) {
387 goto cleanup;
388 }
389 }
390 break;
391
392 case AML_CLASS_EXECUTE:
393
394
395
396 status = acpi_ds_create_operands(walk_state, first_arg);
397 if (ACPI_FAILURE(status)) {
398 goto cleanup;
399 }
400
401
402
403
404
405 if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
406
407
408
409 status = acpi_ex_resolve_operands(walk_state->opcode,
410 &(walk_state->
411 operands
412 [walk_state->
413 num_operands - 1]),
414 walk_state);
415 }
416
417 if (ACPI_SUCCESS(status)) {
418
419
420
421
422
423 status =
424 acpi_gbl_op_type_dispatch[op_type] (walk_state);
425 } else {
426
427
428
429
430 if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
431 (walk_state->opcode == AML_STORE_OP) &&
432 (walk_state->operands[0]->common.type ==
433 ACPI_TYPE_LOCAL_REFERENCE)
434 && (walk_state->operands[1]->common.type ==
435 ACPI_TYPE_LOCAL_REFERENCE)
436 && (walk_state->operands[0]->reference.class ==
437 walk_state->operands[1]->reference.class)
438 && (walk_state->operands[0]->reference.value ==
439 walk_state->operands[1]->reference.value)) {
440 status = AE_OK;
441 } else {
442 ACPI_EXCEPTION((AE_INFO, status,
443 "While resolving operands for [%s]",
444 acpi_ps_get_opcode_name
445 (walk_state->opcode)));
446 }
447 }
448
449
450
451 acpi_ds_clear_operands(walk_state);
452
453
454
455
456
457 if (ACPI_SUCCESS(status) && walk_state->result_obj) {
458 status =
459 acpi_ds_result_push(walk_state->result_obj,
460 walk_state);
461 }
462 break;
463
464 default:
465
466 switch (op_type) {
467 case AML_TYPE_CONTROL:
468
469
470
471 status = acpi_ds_exec_end_control_op(walk_state, op);
472
473 break;
474
475 case AML_TYPE_METHOD_CALL:
476
477
478
479
480
481
482 if ((op->asl.parent) &&
483 ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
484 || (op->asl.parent->asl.aml_opcode ==
485 AML_VAR_PACKAGE_OP))) {
486 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
487 "Method Reference in a Package, Op=%p\n",
488 op));
489
490 op->common.node =
491 (struct acpi_namespace_node *)op->asl.value.
492 arg->asl.node;
493 acpi_ut_add_reference(op->asl.value.arg->asl.
494 node->object);
495 return_ACPI_STATUS(AE_OK);
496 }
497
498 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
499 "Method invocation, Op=%p\n", op));
500
501
502
503
504
505
506
507 next_op = first_arg;
508
509
510
511 next_op = next_op->common.next;
512
513
514
515
516 status = acpi_ds_create_operands(walk_state, next_op);
517 if (ACPI_FAILURE(status)) {
518 break;
519 }
520
521
522
523
524
525
526 status = acpi_ds_resolve_operands(walk_state);
527 if (ACPI_FAILURE(status)) {
528
529
530
531 acpi_ds_clear_operands(walk_state);
532 break;
533 }
534
535
536
537
538
539 status = AE_CTRL_TRANSFER;
540
541
542
543
544
545 return_ACPI_STATUS(status);
546
547 case AML_TYPE_CREATE_FIELD:
548
549 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
550 "Executing CreateField Buffer/Index Op=%p\n",
551 op));
552
553 status = acpi_ds_load2_end_op(walk_state);
554 if (ACPI_FAILURE(status)) {
555 break;
556 }
557
558 status =
559 acpi_ds_eval_buffer_field_operands(walk_state, op);
560 break;
561
562 case AML_TYPE_CREATE_OBJECT:
563
564 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
565 "Executing CreateObject (Buffer/Package) Op=%p\n",
566 op));
567
568 switch (op->common.parent->common.aml_opcode) {
569 case AML_NAME_OP:
570
571
572
573
574
575 walk_state->operands[0] =
576 (void *)op->common.parent->common.node;
577 walk_state->num_operands = 1;
578
579 status = acpi_ds_create_node(walk_state,
580 op->common.parent->
581 common.node,
582 op->common.parent);
583 if (ACPI_FAILURE(status)) {
584 break;
585 }
586
587
588
589
590 case AML_INT_EVAL_SUBTREE_OP:
591
592 status =
593 acpi_ds_eval_data_object_operands
594 (walk_state, op,
595 acpi_ns_get_attached_object(op->common.
596 parent->common.
597 node));
598 break;
599
600 default:
601
602 status =
603 acpi_ds_eval_data_object_operands
604 (walk_state, op, NULL);
605 break;
606 }
607
608
609
610
611
612 if (walk_state->result_obj) {
613 status =
614 acpi_ds_result_push(walk_state->result_obj,
615 walk_state);
616 }
617 break;
618
619 case AML_TYPE_NAMED_FIELD:
620 case AML_TYPE_NAMED_COMPLEX:
621 case AML_TYPE_NAMED_SIMPLE:
622 case AML_TYPE_NAMED_NO_OBJ:
623
624 status = acpi_ds_load2_end_op(walk_state);
625 if (ACPI_FAILURE(status)) {
626 break;
627 }
628
629 if (op->common.aml_opcode == AML_REGION_OP) {
630 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
631 "Executing OpRegion Address/Length Op=%p\n",
632 op));
633
634 status =
635 acpi_ds_eval_region_operands(walk_state,
636 op);
637 if (ACPI_FAILURE(status)) {
638 break;
639 }
640 } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
641 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
642 "Executing DataTableRegion Strings Op=%p\n",
643 op));
644
645 status =
646 acpi_ds_eval_table_region_operands
647 (walk_state, op);
648 if (ACPI_FAILURE(status)) {
649 break;
650 }
651 } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
652 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
653 "Executing BankField Op=%p\n",
654 op));
655
656 status =
657 acpi_ds_eval_bank_field_operands(walk_state,
658 op);
659 if (ACPI_FAILURE(status)) {
660 break;
661 }
662 }
663 break;
664
665 case AML_TYPE_UNDEFINED:
666
667 ACPI_ERROR((AE_INFO,
668 "Undefined opcode type Op=%p", op));
669 return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
670
671 case AML_TYPE_BOGUS:
672
673 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
674 "Internal opcode=%X type Op=%p\n",
675 walk_state->opcode, op));
676 break;
677
678 default:
679
680 ACPI_ERROR((AE_INFO,
681 "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p",
682 op_class, op_type, op->common.aml_opcode,
683 op));
684
685 status = AE_NOT_IMPLEMENTED;
686 break;
687 }
688 }
689
690
691
692
693
694 acpi_ex_truncate_for32bit_table(walk_state->result_obj);
695
696
697
698
699
700 if ((ACPI_SUCCESS(status)) &&
701 (walk_state->control_state) &&
702 (walk_state->control_state->common.state ==
703 ACPI_CONTROL_PREDICATE_EXECUTING) &&
704 (walk_state->control_state->control.predicate_op == op)) {
705 status =
706 acpi_ds_get_predicate_value(walk_state,
707 walk_state->result_obj);
708 walk_state->result_obj = NULL;
709 }
710
711 cleanup:
712
713 if (walk_state->result_obj) {
714
715
716
717 ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
718 (walk_state->result_obj, walk_state));
719
720
721
722
723
724
725 acpi_ds_delete_result_if_not_used(op, walk_state->result_obj,
726 walk_state);
727 }
728#ifdef _UNDER_DEVELOPMENT
729
730 if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) {
731 acpi_db_method_end(walk_state);
732 }
733#endif
734
735
736
737 if (ACPI_FAILURE(status)) {
738 status = acpi_ds_method_error(status, walk_state);
739 }
740
741
742
743 walk_state->num_operands = 0;
744 return_ACPI_STATUS(status);
745}
746