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9ad19ac4 BM |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: dswload2 - Dispatcher second pass namespace load callbacks | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
c8100dc4 | 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
9ad19ac4 BM |
9 | * All rights reserved. |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
44 | #include <acpi/acpi.h> | |
45 | #include "accommon.h" | |
46 | #include "acparser.h" | |
47 | #include "amlcode.h" | |
48 | #include "acdispat.h" | |
49 | #include "acinterp.h" | |
50 | #include "acnamesp.h" | |
51 | #include "acevents.h" | |
52 | ||
53 | #define _COMPONENT ACPI_DISPATCHER | |
54 | ACPI_MODULE_NAME("dswload2") | |
55 | ||
56 | /******************************************************************************* | |
57 | * | |
58 | * FUNCTION: acpi_ds_load2_begin_op | |
59 | * | |
60 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
61 | * out_op - Wher to return op if a new one is created | |
62 | * | |
63 | * RETURN: Status | |
64 | * | |
65 | * DESCRIPTION: Descending callback used during the loading of ACPI tables. | |
66 | * | |
67 | ******************************************************************************/ | |
68 | acpi_status | |
69 | acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, | |
70 | union acpi_parse_object **out_op) | |
71 | { | |
72 | union acpi_parse_object *op; | |
73 | struct acpi_namespace_node *node; | |
74 | acpi_status status; | |
75 | acpi_object_type object_type; | |
76 | char *buffer_ptr; | |
77 | u32 flags; | |
78 | ||
79 | ACPI_FUNCTION_TRACE(ds_load2_begin_op); | |
80 | ||
81 | op = walk_state->op; | |
82 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, | |
83 | walk_state)); | |
84 | ||
85 | if (op) { | |
86 | if ((walk_state->control_state) && | |
87 | (walk_state->control_state->common.state == | |
88 | ACPI_CONTROL_CONDITIONAL_EXECUTING)) { | |
89 | ||
90 | /* We are executing a while loop outside of a method */ | |
91 | ||
92 | status = acpi_ds_exec_begin_op(walk_state, out_op); | |
93 | return_ACPI_STATUS(status); | |
94 | } | |
95 | ||
96 | /* We only care about Namespace opcodes here */ | |
97 | ||
98 | if ((!(walk_state->op_info->flags & AML_NSOPCODE) && | |
99 | (walk_state->opcode != AML_INT_NAMEPATH_OP)) || | |
100 | (!(walk_state->op_info->flags & AML_NAMED))) { | |
101 | return_ACPI_STATUS(AE_OK); | |
102 | } | |
103 | ||
104 | /* Get the name we are going to enter or lookup in the namespace */ | |
105 | ||
106 | if (walk_state->opcode == AML_INT_NAMEPATH_OP) { | |
107 | ||
108 | /* For Namepath op, get the path string */ | |
109 | ||
110 | buffer_ptr = op->common.value.string; | |
111 | if (!buffer_ptr) { | |
112 | ||
113 | /* No name, just exit */ | |
114 | ||
115 | return_ACPI_STATUS(AE_OK); | |
116 | } | |
117 | } else { | |
118 | /* Get name from the op */ | |
119 | ||
120 | buffer_ptr = ACPI_CAST_PTR(char, &op->named.name); | |
121 | } | |
122 | } else { | |
123 | /* Get the namestring from the raw AML */ | |
124 | ||
125 | buffer_ptr = | |
126 | acpi_ps_get_next_namestring(&walk_state->parser_state); | |
127 | } | |
128 | ||
129 | /* Map the opcode into an internal object type */ | |
130 | ||
131 | object_type = walk_state->op_info->object_type; | |
132 | ||
133 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
134 | "State=%p Op=%p Type=%X\n", walk_state, op, | |
135 | object_type)); | |
136 | ||
137 | switch (walk_state->opcode) { | |
138 | case AML_FIELD_OP: | |
139 | case AML_BANK_FIELD_OP: | |
140 | case AML_INDEX_FIELD_OP: | |
141 | ||
142 | node = NULL; | |
143 | status = AE_OK; | |
144 | break; | |
145 | ||
146 | case AML_INT_NAMEPATH_OP: | |
147 | /* | |
148 | * The name_path is an object reference to an existing object. | |
149 | * Don't enter the name into the namespace, but look it up | |
150 | * for use later. | |
151 | */ | |
152 | status = | |
153 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, | |
154 | object_type, ACPI_IMODE_EXECUTE, | |
155 | ACPI_NS_SEARCH_PARENT, walk_state, &(node)); | |
156 | break; | |
157 | ||
158 | case AML_SCOPE_OP: | |
159 | ||
160 | /* Special case for Scope(\) -> refers to the Root node */ | |
161 | ||
162 | if (op && (op->named.node == acpi_gbl_root_node)) { | |
163 | node = op->named.node; | |
164 | ||
165 | status = | |
166 | acpi_ds_scope_stack_push(node, object_type, | |
167 | walk_state); | |
168 | if (ACPI_FAILURE(status)) { | |
169 | return_ACPI_STATUS(status); | |
170 | } | |
171 | } else { | |
172 | /* | |
173 | * The Path is an object reference to an existing object. | |
174 | * Don't enter the name into the namespace, but look it up | |
175 | * for use later. | |
176 | */ | |
177 | status = | |
178 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, | |
179 | object_type, ACPI_IMODE_EXECUTE, | |
180 | ACPI_NS_SEARCH_PARENT, walk_state, | |
181 | &(node)); | |
182 | if (ACPI_FAILURE(status)) { | |
183 | #ifdef ACPI_ASL_COMPILER | |
184 | if (status == AE_NOT_FOUND) { | |
185 | status = AE_OK; | |
186 | } else { | |
187 | ACPI_ERROR_NAMESPACE(buffer_ptr, | |
188 | status); | |
189 | } | |
190 | #else | |
191 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); | |
192 | #endif | |
193 | return_ACPI_STATUS(status); | |
194 | } | |
195 | } | |
196 | ||
197 | /* | |
198 | * We must check to make sure that the target is | |
199 | * one of the opcodes that actually opens a scope | |
200 | */ | |
201 | switch (node->type) { | |
202 | case ACPI_TYPE_ANY: | |
203 | case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ | |
204 | case ACPI_TYPE_DEVICE: | |
205 | case ACPI_TYPE_POWER: | |
206 | case ACPI_TYPE_PROCESSOR: | |
207 | case ACPI_TYPE_THERMAL: | |
208 | ||
209 | /* These are acceptable types */ | |
210 | break; | |
211 | ||
212 | case ACPI_TYPE_INTEGER: | |
213 | case ACPI_TYPE_STRING: | |
214 | case ACPI_TYPE_BUFFER: | |
215 | ||
216 | /* | |
217 | * These types we will allow, but we will change the type. | |
218 | * This enables some existing code of the form: | |
219 | * | |
220 | * Name (DEB, 0) | |
221 | * Scope (DEB) { ... } | |
222 | */ | |
223 | ACPI_WARNING((AE_INFO, | |
224 | "Type override - [%4.4s] had invalid type (%s) " | |
5e30a96e | 225 | "for Scope operator, changed to type ANY", |
9ad19ac4 BM |
226 | acpi_ut_get_node_name(node), |
227 | acpi_ut_get_type_name(node->type))); | |
228 | ||
229 | node->type = ACPI_TYPE_ANY; | |
230 | walk_state->scope_info->common.value = ACPI_TYPE_ANY; | |
231 | break; | |
232 | ||
28f538b5 BM |
233 | case ACPI_TYPE_METHOD: |
234 | ||
235 | /* | |
236 | * Allow scope change to root during execution of module-level | |
237 | * code. Root is typed METHOD during this time. | |
238 | */ | |
239 | if ((node == acpi_gbl_root_node) && | |
240 | (walk_state-> | |
241 | parse_flags & ACPI_PARSE_MODULE_LEVEL)) { | |
242 | break; | |
243 | } | |
244 | ||
245 | /*lint -fallthrough */ | |
246 | ||
9ad19ac4 BM |
247 | default: |
248 | ||
249 | /* All other types are an error */ | |
250 | ||
251 | ACPI_ERROR((AE_INFO, | |
252 | "Invalid type (%s) for target of " | |
253 | "Scope operator [%4.4s] (Cannot override)", | |
254 | acpi_ut_get_type_name(node->type), | |
255 | acpi_ut_get_node_name(node))); | |
256 | ||
68aafc35 | 257 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
9ad19ac4 BM |
258 | } |
259 | break; | |
260 | ||
261 | default: | |
262 | ||
263 | /* All other opcodes */ | |
264 | ||
265 | if (op && op->common.node) { | |
266 | ||
267 | /* This op/node was previously entered into the namespace */ | |
268 | ||
269 | node = op->common.node; | |
270 | ||
271 | if (acpi_ns_opens_scope(object_type)) { | |
272 | status = | |
273 | acpi_ds_scope_stack_push(node, object_type, | |
274 | walk_state); | |
275 | if (ACPI_FAILURE(status)) { | |
276 | return_ACPI_STATUS(status); | |
277 | } | |
278 | } | |
279 | ||
280 | return_ACPI_STATUS(AE_OK); | |
281 | } | |
282 | ||
283 | /* | |
284 | * Enter the named type into the internal namespace. We enter the name | |
285 | * as we go downward in the parse tree. Any necessary subobjects that | |
286 | * involve arguments to the opcode must be created as we go back up the | |
287 | * parse tree later. | |
288 | * | |
289 | * Note: Name may already exist if we are executing a deferred opcode. | |
290 | */ | |
291 | if (walk_state->deferred_node) { | |
292 | ||
293 | /* This name is already in the namespace, get the node */ | |
294 | ||
295 | node = walk_state->deferred_node; | |
296 | status = AE_OK; | |
297 | break; | |
298 | } | |
299 | ||
300 | flags = ACPI_NS_NO_UPSEARCH; | |
301 | if (walk_state->pass_number == ACPI_IMODE_EXECUTE) { | |
302 | ||
303 | /* Execution mode, node cannot already exist, node is temporary */ | |
304 | ||
305 | flags |= ACPI_NS_ERROR_IF_FOUND; | |
306 | ||
307 | if (! | |
308 | (walk_state-> | |
309 | parse_flags & ACPI_PARSE_MODULE_LEVEL)) { | |
310 | flags |= ACPI_NS_TEMPORARY; | |
311 | } | |
312 | } | |
313 | ||
314 | /* Add new entry or lookup existing entry */ | |
315 | ||
316 | status = | |
317 | acpi_ns_lookup(walk_state->scope_info, buffer_ptr, | |
318 | object_type, ACPI_IMODE_LOAD_PASS2, flags, | |
319 | walk_state, &node); | |
320 | ||
321 | if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) { | |
322 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
323 | "***New Node [%4.4s] %p is temporary\n", | |
324 | acpi_ut_get_node_name(node), node)); | |
325 | } | |
326 | break; | |
327 | } | |
328 | ||
329 | if (ACPI_FAILURE(status)) { | |
330 | ACPI_ERROR_NAMESPACE(buffer_ptr, status); | |
331 | return_ACPI_STATUS(status); | |
332 | } | |
333 | ||
334 | if (!op) { | |
335 | ||
336 | /* Create a new op */ | |
337 | ||
62eb935b | 338 | op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml); |
9ad19ac4 BM |
339 | if (!op) { |
340 | return_ACPI_STATUS(AE_NO_MEMORY); | |
341 | } | |
342 | ||
343 | /* Initialize the new op */ | |
344 | ||
345 | if (node) { | |
346 | op->named.name = node->name.integer; | |
347 | } | |
348 | *out_op = op; | |
349 | } | |
350 | ||
351 | /* | |
352 | * Put the Node in the "op" object that the parser uses, so we | |
353 | * can get it again quickly when this scope is closed | |
354 | */ | |
355 | op->common.node = node; | |
356 | return_ACPI_STATUS(status); | |
357 | } | |
358 | ||
359 | /******************************************************************************* | |
360 | * | |
361 | * FUNCTION: acpi_ds_load2_end_op | |
362 | * | |
363 | * PARAMETERS: walk_state - Current state of the parse tree walk | |
364 | * | |
365 | * RETURN: Status | |
366 | * | |
367 | * DESCRIPTION: Ascending callback used during the loading of the namespace, | |
368 | * both control methods and everything else. | |
369 | * | |
370 | ******************************************************************************/ | |
371 | ||
372 | acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) | |
373 | { | |
374 | union acpi_parse_object *op; | |
375 | acpi_status status = AE_OK; | |
376 | acpi_object_type object_type; | |
377 | struct acpi_namespace_node *node; | |
378 | union acpi_parse_object *arg; | |
379 | struct acpi_namespace_node *new_node; | |
380 | #ifndef ACPI_NO_METHOD_EXECUTION | |
381 | u32 i; | |
382 | u8 region_space; | |
383 | #endif | |
384 | ||
385 | ACPI_FUNCTION_TRACE(ds_load2_end_op); | |
386 | ||
387 | op = walk_state->op; | |
388 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", | |
389 | walk_state->op_info->name, op, walk_state)); | |
390 | ||
391 | /* Check if opcode had an associated namespace object */ | |
392 | ||
393 | if (!(walk_state->op_info->flags & AML_NSOBJECT)) { | |
394 | return_ACPI_STATUS(AE_OK); | |
395 | } | |
396 | ||
397 | if (op->common.aml_opcode == AML_SCOPE_OP) { | |
398 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
399 | "Ending scope Op=%p State=%p\n", op, | |
400 | walk_state)); | |
401 | } | |
402 | ||
403 | object_type = walk_state->op_info->object_type; | |
404 | ||
405 | /* | |
406 | * Get the Node/name from the earlier lookup | |
407 | * (It was saved in the *op structure) | |
408 | */ | |
409 | node = op->common.node; | |
410 | ||
411 | /* | |
412 | * Put the Node on the object stack (Contains the ACPI Name of | |
413 | * this object) | |
414 | */ | |
415 | walk_state->operands[0] = (void *)node; | |
416 | walk_state->num_operands = 1; | |
417 | ||
418 | /* Pop the scope stack */ | |
419 | ||
420 | if (acpi_ns_opens_scope(object_type) && | |
421 | (op->common.aml_opcode != AML_INT_METHODCALL_OP)) { | |
422 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
423 | "(%s) Popping scope for Op %p\n", | |
424 | acpi_ut_get_type_name(object_type), op)); | |
425 | ||
426 | status = acpi_ds_scope_stack_pop(walk_state); | |
427 | if (ACPI_FAILURE(status)) { | |
428 | goto cleanup; | |
429 | } | |
430 | } | |
431 | ||
432 | /* | |
433 | * Named operations are as follows: | |
434 | * | |
435 | * AML_ALIAS | |
436 | * AML_BANKFIELD | |
437 | * AML_CREATEBITFIELD | |
438 | * AML_CREATEBYTEFIELD | |
439 | * AML_CREATEDWORDFIELD | |
440 | * AML_CREATEFIELD | |
441 | * AML_CREATEQWORDFIELD | |
442 | * AML_CREATEWORDFIELD | |
443 | * AML_DATA_REGION | |
444 | * AML_DEVICE | |
445 | * AML_EVENT | |
446 | * AML_FIELD | |
447 | * AML_INDEXFIELD | |
448 | * AML_METHOD | |
449 | * AML_METHODCALL | |
450 | * AML_MUTEX | |
451 | * AML_NAME | |
452 | * AML_NAMEDFIELD | |
453 | * AML_OPREGION | |
454 | * AML_POWERRES | |
455 | * AML_PROCESSOR | |
456 | * AML_SCOPE | |
457 | * AML_THERMALZONE | |
458 | */ | |
459 | ||
460 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
461 | "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", | |
462 | acpi_ps_get_opcode_name(op->common.aml_opcode), | |
463 | walk_state, op, node)); | |
464 | ||
465 | /* Decode the opcode */ | |
466 | ||
467 | arg = op->common.value.arg; | |
468 | ||
469 | switch (walk_state->op_info->type) { | |
470 | #ifndef ACPI_NO_METHOD_EXECUTION | |
471 | ||
472 | case AML_TYPE_CREATE_FIELD: | |
473 | /* | |
474 | * Create the field object, but the field buffer and index must | |
475 | * be evaluated later during the execution phase | |
476 | */ | |
477 | status = acpi_ds_create_buffer_field(op, walk_state); | |
478 | break; | |
479 | ||
480 | case AML_TYPE_NAMED_FIELD: | |
481 | /* | |
482 | * If we are executing a method, initialize the field | |
483 | */ | |
484 | if (walk_state->method_node) { | |
485 | status = acpi_ds_init_field_objects(op, walk_state); | |
486 | } | |
487 | ||
488 | switch (op->common.aml_opcode) { | |
489 | case AML_INDEX_FIELD_OP: | |
490 | ||
491 | status = | |
492 | acpi_ds_create_index_field(op, | |
f5c1e1c5 LZ |
493 | (acpi_handle)arg->common. |
494 | node, walk_state); | |
9ad19ac4 BM |
495 | break; |
496 | ||
497 | case AML_BANK_FIELD_OP: | |
498 | ||
499 | status = | |
500 | acpi_ds_create_bank_field(op, arg->common.node, | |
501 | walk_state); | |
502 | break; | |
503 | ||
504 | case AML_FIELD_OP: | |
505 | ||
506 | status = | |
507 | acpi_ds_create_field(op, arg->common.node, | |
508 | walk_state); | |
509 | break; | |
510 | ||
511 | default: | |
1d1ea1b7 | 512 | |
9ad19ac4 BM |
513 | /* All NAMED_FIELD opcodes must be handled above */ |
514 | break; | |
515 | } | |
516 | break; | |
517 | ||
518 | case AML_TYPE_NAMED_SIMPLE: | |
519 | ||
520 | status = acpi_ds_create_operands(walk_state, arg); | |
521 | if (ACPI_FAILURE(status)) { | |
522 | goto cleanup; | |
523 | } | |
524 | ||
525 | switch (op->common.aml_opcode) { | |
526 | case AML_PROCESSOR_OP: | |
527 | ||
528 | status = acpi_ex_create_processor(walk_state); | |
529 | break; | |
530 | ||
531 | case AML_POWER_RES_OP: | |
532 | ||
533 | status = acpi_ex_create_power_resource(walk_state); | |
534 | break; | |
535 | ||
536 | case AML_MUTEX_OP: | |
537 | ||
538 | status = acpi_ex_create_mutex(walk_state); | |
539 | break; | |
540 | ||
541 | case AML_EVENT_OP: | |
542 | ||
543 | status = acpi_ex_create_event(walk_state); | |
544 | break; | |
545 | ||
546 | case AML_ALIAS_OP: | |
547 | ||
548 | status = acpi_ex_create_alias(walk_state); | |
549 | break; | |
550 | ||
551 | default: | |
1d1ea1b7 | 552 | |
9ad19ac4 BM |
553 | /* Unknown opcode */ |
554 | ||
555 | status = AE_OK; | |
556 | goto cleanup; | |
557 | } | |
558 | ||
559 | /* Delete operands */ | |
560 | ||
561 | for (i = 1; i < walk_state->num_operands; i++) { | |
562 | acpi_ut_remove_reference(walk_state->operands[i]); | |
563 | walk_state->operands[i] = NULL; | |
564 | } | |
565 | ||
566 | break; | |
567 | #endif /* ACPI_NO_METHOD_EXECUTION */ | |
568 | ||
569 | case AML_TYPE_NAMED_COMPLEX: | |
570 | ||
571 | switch (op->common.aml_opcode) { | |
572 | #ifndef ACPI_NO_METHOD_EXECUTION | |
573 | case AML_REGION_OP: | |
574 | case AML_DATA_REGION_OP: | |
575 | ||
576 | if (op->common.aml_opcode == AML_REGION_OP) { | |
577 | region_space = (acpi_adr_space_type) | |
578 | ((op->common.value.arg)->common.value. | |
579 | integer); | |
580 | } else { | |
82a1b7cb | 581 | region_space = ACPI_ADR_SPACE_DATA_TABLE; |
9ad19ac4 BM |
582 | } |
583 | ||
584 | /* | |
585 | * The op_region is not fully parsed at this time. The only valid | |
586 | * argument is the space_id. (We must save the address of the | |
587 | * AML of the address and length operands) | |
588 | * | |
589 | * If we have a valid region, initialize it. The namespace is | |
590 | * unlocked at this point. | |
591 | * | |
592 | * Need to unlock interpreter if it is locked (if we are running | |
593 | * a control method), in order to allow _REG methods to be run | |
594 | * during acpi_ev_initialize_region. | |
595 | */ | |
596 | if (walk_state->method_node) { | |
597 | /* | |
598 | * Executing a method: initialize the region and unlock | |
599 | * the interpreter | |
600 | */ | |
1fad8738 BM |
601 | status = acpi_ex_create_region(op->named.data, |
602 | op->named.length, | |
603 | region_space, | |
604 | walk_state); | |
9ad19ac4 | 605 | if (ACPI_FAILURE(status)) { |
68aafc35 | 606 | return_ACPI_STATUS(status); |
9ad19ac4 BM |
607 | } |
608 | ||
609 | acpi_ex_exit_interpreter(); | |
610 | } | |
611 | ||
612 | status = | |
613 | acpi_ev_initialize_region | |
614 | (acpi_ns_get_attached_object(node), FALSE); | |
615 | if (walk_state->method_node) { | |
616 | acpi_ex_enter_interpreter(); | |
617 | } | |
618 | ||
619 | if (ACPI_FAILURE(status)) { | |
620 | /* | |
621 | * If AE_NOT_EXIST is returned, it is not fatal | |
622 | * because many regions get created before a handler | |
623 | * is installed for said region. | |
624 | */ | |
625 | if (AE_NOT_EXIST == status) { | |
626 | status = AE_OK; | |
627 | } | |
628 | } | |
629 | break; | |
630 | ||
631 | case AML_NAME_OP: | |
632 | ||
633 | status = acpi_ds_create_node(walk_state, node, op); | |
634 | break; | |
635 | ||
636 | case AML_METHOD_OP: | |
637 | /* | |
638 | * method_op pkg_length name_string method_flags term_list | |
639 | * | |
640 | * Note: We must create the method node/object pair as soon as we | |
641 | * see the method declaration. This allows later pass1 parsing | |
642 | * of invocations of the method (need to know the number of | |
643 | * arguments.) | |
644 | */ | |
645 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
646 | "LOADING-Method: State=%p Op=%p NamedObj=%p\n", | |
647 | walk_state, op, op->named.node)); | |
648 | ||
649 | if (!acpi_ns_get_attached_object(op->named.node)) { | |
650 | walk_state->operands[0] = | |
651 | ACPI_CAST_PTR(void, op->named.node); | |
652 | walk_state->num_operands = 1; | |
653 | ||
654 | status = | |
655 | acpi_ds_create_operands(walk_state, | |
656 | op->common.value. | |
657 | arg); | |
658 | if (ACPI_SUCCESS(status)) { | |
659 | status = | |
660 | acpi_ex_create_method(op->named. | |
661 | data, | |
662 | op->named. | |
663 | length, | |
664 | walk_state); | |
665 | } | |
1fad8738 | 666 | |
9ad19ac4 BM |
667 | walk_state->operands[0] = NULL; |
668 | walk_state->num_operands = 0; | |
669 | ||
670 | if (ACPI_FAILURE(status)) { | |
671 | return_ACPI_STATUS(status); | |
672 | } | |
673 | } | |
674 | break; | |
675 | ||
676 | #endif /* ACPI_NO_METHOD_EXECUTION */ | |
677 | ||
678 | default: | |
1d1ea1b7 | 679 | |
9ad19ac4 BM |
680 | /* All NAMED_COMPLEX opcodes must be handled above */ |
681 | break; | |
682 | } | |
683 | break; | |
684 | ||
685 | case AML_CLASS_INTERNAL: | |
686 | ||
687 | /* case AML_INT_NAMEPATH_OP: */ | |
688 | break; | |
689 | ||
690 | case AML_CLASS_METHOD_CALL: | |
691 | ||
692 | ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, | |
693 | "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", | |
694 | walk_state, op, node)); | |
695 | ||
696 | /* | |
697 | * Lookup the method name and save the Node | |
698 | */ | |
699 | status = | |
700 | acpi_ns_lookup(walk_state->scope_info, | |
701 | arg->common.value.string, ACPI_TYPE_ANY, | |
702 | ACPI_IMODE_LOAD_PASS2, | |
703 | ACPI_NS_SEARCH_PARENT | | |
704 | ACPI_NS_DONT_OPEN_SCOPE, walk_state, | |
705 | &(new_node)); | |
706 | if (ACPI_SUCCESS(status)) { | |
707 | /* | |
708 | * Make sure that what we found is indeed a method | |
709 | * We didn't search for a method on purpose, to see if the name | |
710 | * would resolve | |
711 | */ | |
712 | if (new_node->type != ACPI_TYPE_METHOD) { | |
713 | status = AE_AML_OPERAND_TYPE; | |
714 | } | |
715 | ||
716 | /* We could put the returned object (Node) on the object stack for | |
717 | * later, but for now, we will put it in the "op" object that the | |
718 | * parser uses, so we can get it again at the end of this scope | |
719 | */ | |
720 | op->common.node = new_node; | |
721 | } else { | |
722 | ACPI_ERROR_NAMESPACE(arg->common.value.string, status); | |
723 | } | |
724 | break; | |
725 | ||
726 | default: | |
1d1ea1b7 | 727 | |
9ad19ac4 BM |
728 | break; |
729 | } | |
730 | ||
10622bf8 | 731 | cleanup: |
9ad19ac4 BM |
732 | |
733 | /* Remove the Node pushed at the very beginning */ | |
734 | ||
735 | walk_state->operands[0] = NULL; | |
736 | walk_state->num_operands = 0; | |
737 | return_ACPI_STATUS(status); | |
738 | } |