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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=0x%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
305
306
307
308
309 if (op->common.aml_opcode != AML_SCOPE_OP) {
310 status =
311 acpi_ds_load2_begin_op(walk_state, NULL);
312 } else {
313 status =
314 acpi_ds_scope_stack_push(op->named.node,
315 op->named.node->
316 type, walk_state);
317 if (ACPI_FAILURE(status)) {
318 return_ACPI_STATUS(status);
319 }
320 }
321 }
322 break;
323
324 case AML_CLASS_EXECUTE:
325 case AML_CLASS_CREATE:
326
327 break;
328
329 default:
330 break;
331 }
332
333
334
335 return_ACPI_STATUS(status);
336
337 error_exit:
338 status = acpi_ds_method_error(status, walk_state);
339 return_ACPI_STATUS(status);
340}
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
357{
358 union acpi_parse_object *op;
359 acpi_status status = AE_OK;
360 u32 op_type;
361 u32 op_class;
362 union acpi_parse_object *next_op;
363 union acpi_parse_object *first_arg;
364
365 ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
366
367 op = walk_state->op;
368 op_type = walk_state->op_info->type;
369 op_class = walk_state->op_info->class;
370
371 if (op_class == AML_CLASS_UNKNOWN) {
372 ACPI_ERROR((AE_INFO, "Unknown opcode 0x%X",
373 op->common.aml_opcode));
374 return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
375 }
376
377 first_arg = op->common.value.arg;
378
379
380
381 walk_state->num_operands = 0;
382 walk_state->operand_index = 0;
383 walk_state->return_desc = NULL;
384 walk_state->result_obj = NULL;
385
386
387
388 ACPI_DEBUGGER_EXEC(status =
389 acpi_db_single_step(walk_state, op, op_class));
390 ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
391 return_ACPI_STATUS(status);}
392 ) ;
393
394
395
396 switch (op_class) {
397 case AML_CLASS_ARGUMENT:
398
399 if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
400 status = acpi_ds_evaluate_name_path(walk_state);
401 if (ACPI_FAILURE(status)) {
402 goto cleanup;
403 }
404 }
405 break;
406
407 case AML_CLASS_EXECUTE:
408
409
410
411 status = acpi_ds_create_operands(walk_state, first_arg);
412 if (ACPI_FAILURE(status)) {
413 goto cleanup;
414 }
415
416
417
418
419
420 if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
421
422
423
424 status = acpi_ex_resolve_operands(walk_state->opcode,
425 &(walk_state->
426 operands
427 [walk_state->
428 num_operands - 1]),
429 walk_state);
430 }
431
432 if (ACPI_SUCCESS(status)) {
433
434
435
436
437
438 status =
439 acpi_gbl_op_type_dispatch[op_type] (walk_state);
440 } else {
441
442
443
444
445 if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
446 (walk_state->opcode == AML_STORE_OP) &&
447 (walk_state->operands[0]->common.type ==
448 ACPI_TYPE_LOCAL_REFERENCE)
449 && (walk_state->operands[1]->common.type ==
450 ACPI_TYPE_LOCAL_REFERENCE)
451 && (walk_state->operands[0]->reference.class ==
452 walk_state->operands[1]->reference.class)
453 && (walk_state->operands[0]->reference.value ==
454 walk_state->operands[1]->reference.value)) {
455 status = AE_OK;
456 } else {
457 ACPI_EXCEPTION((AE_INFO, status,
458 "While resolving operands for [%s]",
459 acpi_ps_get_opcode_name
460 (walk_state->opcode)));
461 }
462 }
463
464
465
466 acpi_ds_clear_operands(walk_state);
467
468
469
470
471
472 if (ACPI_SUCCESS(status) && walk_state->result_obj) {
473 status =
474 acpi_ds_result_push(walk_state->result_obj,
475 walk_state);
476 }
477 break;
478
479 default:
480
481 switch (op_type) {
482 case AML_TYPE_CONTROL:
483
484
485
486 status = acpi_ds_exec_end_control_op(walk_state, op);
487
488 break;
489
490 case AML_TYPE_METHOD_CALL:
491
492
493
494
495
496
497 if ((op->asl.parent) &&
498 ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
499 || (op->asl.parent->asl.aml_opcode ==
500 AML_VAR_PACKAGE_OP))) {
501 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
502 "Method Reference in a Package, Op=%p\n",
503 op));
504
505 op->common.node =
506 (struct acpi_namespace_node *)op->asl.value.
507 arg->asl.node;
508 acpi_ut_add_reference(op->asl.value.arg->asl.
509 node->object);
510 return_ACPI_STATUS(AE_OK);
511 }
512
513 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
514 "Method invocation, Op=%p\n", op));
515
516
517
518
519
520
521
522 next_op = first_arg;
523
524
525
526 next_op = next_op->common.next;
527
528
529
530
531 status = acpi_ds_create_operands(walk_state, next_op);
532 if (ACPI_FAILURE(status)) {
533 break;
534 }
535
536
537
538
539
540
541 status = acpi_ds_resolve_operands(walk_state);
542 if (ACPI_FAILURE(status)) {
543
544
545
546 acpi_ds_clear_operands(walk_state);
547 break;
548 }
549
550
551
552
553
554 status = AE_CTRL_TRANSFER;
555
556
557
558
559
560 return_ACPI_STATUS(status);
561
562 case AML_TYPE_CREATE_FIELD:
563
564 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
565 "Executing CreateField Buffer/Index Op=%p\n",
566 op));
567
568 status = acpi_ds_load2_end_op(walk_state);
569 if (ACPI_FAILURE(status)) {
570 break;
571 }
572
573 status =
574 acpi_ds_eval_buffer_field_operands(walk_state, op);
575 break;
576
577 case AML_TYPE_CREATE_OBJECT:
578
579 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
580 "Executing CreateObject (Buffer/Package) Op=%p\n",
581 op));
582
583 switch (op->common.parent->common.aml_opcode) {
584 case AML_NAME_OP:
585
586
587
588
589
590 walk_state->operands[0] =
591 (void *)op->common.parent->common.node;
592 walk_state->num_operands = 1;
593
594 status = acpi_ds_create_node(walk_state,
595 op->common.parent->
596 common.node,
597 op->common.parent);
598 if (ACPI_FAILURE(status)) {
599 break;
600 }
601
602
603
604
605 case AML_INT_EVAL_SUBTREE_OP:
606
607 status =
608 acpi_ds_eval_data_object_operands
609 (walk_state, op,
610 acpi_ns_get_attached_object(op->common.
611 parent->common.
612 node));
613 break;
614
615 default:
616
617 status =
618 acpi_ds_eval_data_object_operands
619 (walk_state, op, NULL);
620 break;
621 }
622
623
624
625
626
627 if (walk_state->result_obj) {
628 status =
629 acpi_ds_result_push(walk_state->result_obj,
630 walk_state);
631 }
632 break;
633
634 case AML_TYPE_NAMED_FIELD:
635 case AML_TYPE_NAMED_COMPLEX:
636 case AML_TYPE_NAMED_SIMPLE:
637 case AML_TYPE_NAMED_NO_OBJ:
638
639 status = acpi_ds_load2_end_op(walk_state);
640 if (ACPI_FAILURE(status)) {
641 break;
642 }
643
644 if (op->common.aml_opcode == AML_REGION_OP) {
645 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
646 "Executing OpRegion Address/Length Op=%p\n",
647 op));
648
649 status =
650 acpi_ds_eval_region_operands(walk_state,
651 op);
652 if (ACPI_FAILURE(status)) {
653 break;
654 }
655 } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
656 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
657 "Executing DataTableRegion Strings Op=%p\n",
658 op));
659
660 status =
661 acpi_ds_eval_table_region_operands
662 (walk_state, op);
663 if (ACPI_FAILURE(status)) {
664 break;
665 }
666 } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
667 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
668 "Executing BankField Op=%p\n",
669 op));
670
671 status =
672 acpi_ds_eval_bank_field_operands(walk_state,
673 op);
674 if (ACPI_FAILURE(status)) {
675 break;
676 }
677 }
678 break;
679
680 case AML_TYPE_UNDEFINED:
681
682 ACPI_ERROR((AE_INFO,
683 "Undefined opcode type Op=%p", op));
684 return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
685
686 case AML_TYPE_BOGUS:
687
688 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
689 "Internal opcode=%X type Op=%p\n",
690 walk_state->opcode, op));
691 break;
692
693 default:
694
695 ACPI_ERROR((AE_INFO,
696 "Unimplemented opcode, class=0x%X type=0x%X Opcode=-0x%X Op=%p",
697 op_class, op_type, op->common.aml_opcode,
698 op));
699
700 status = AE_NOT_IMPLEMENTED;
701 break;
702 }
703 }
704
705
706
707
708
709 acpi_ex_truncate_for32bit_table(walk_state->result_obj);
710
711
712
713
714
715 if ((ACPI_SUCCESS(status)) &&
716 (walk_state->control_state) &&
717 (walk_state->control_state->common.state ==
718 ACPI_CONTROL_PREDICATE_EXECUTING) &&
719 (walk_state->control_state->control.predicate_op == op)) {
720 status =
721 acpi_ds_get_predicate_value(walk_state,
722 walk_state->result_obj);
723 walk_state->result_obj = NULL;
724 }
725
726 cleanup:
727
728 if (walk_state->result_obj) {
729
730
731
732 ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
733 (walk_state->result_obj, walk_state));
734
735
736
737
738
739
740 acpi_ds_delete_result_if_not_used(op, walk_state->result_obj,
741 walk_state);
742 }
743#ifdef _UNDER_DEVELOPMENT
744
745 if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) {
746 acpi_db_method_end(walk_state);
747 }
748#endif
749
750
751
752 if (ACPI_FAILURE(status)) {
753 status = acpi_ds_method_error(status, walk_state);
754 }
755
756
757
758 walk_state->num_operands = 0;
759 return_ACPI_STATUS(status);
760}
761