Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: excreate - Named object creation | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acinterp.h> | |
46 | #include <acpi/amlcode.h> | |
47 | #include <acpi/acnamesp.h> | |
48 | #include <acpi/acevents.h> | |
49 | #include <acpi/actables.h> | |
50 | ||
1da177e4 | 51 | #define _COMPONENT ACPI_EXECUTER |
4be44fcd | 52 | ACPI_MODULE_NAME("excreate") |
1da177e4 | 53 | #ifndef ACPI_NO_METHOD_EXECUTION |
44f6c012 | 54 | /******************************************************************************* |
1da177e4 LT |
55 | * |
56 | * FUNCTION: acpi_ex_create_alias | |
57 | * | |
58 | * PARAMETERS: walk_state - Current state, contains operands | |
59 | * | |
60 | * RETURN: Status | |
61 | * | |
62 | * DESCRIPTION: Create a new named alias | |
63 | * | |
44f6c012 | 64 | ******************************************************************************/ |
4be44fcd | 65 | acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) |
1da177e4 | 66 | { |
4be44fcd LB |
67 | struct acpi_namespace_node *target_node; |
68 | struct acpi_namespace_node *alias_node; | |
69 | acpi_status status = AE_OK; | |
1da177e4 | 70 | |
b229cf92 | 71 | ACPI_FUNCTION_TRACE(ex_create_alias); |
1da177e4 LT |
72 | |
73 | /* Get the source/alias operands (both namespace nodes) */ | |
74 | ||
4be44fcd LB |
75 | alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; |
76 | target_node = (struct acpi_namespace_node *)walk_state->operands[1]; | |
1da177e4 LT |
77 | |
78 | if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) || | |
4be44fcd | 79 | (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { |
1da177e4 LT |
80 | /* |
81 | * Dereference an existing alias so that we don't create a chain | |
82 | * of aliases. With this code, we guarantee that an alias is | |
83 | * always exactly one level of indirection away from the | |
84 | * actual aliased name. | |
85 | */ | |
4be44fcd LB |
86 | target_node = |
87 | ACPI_CAST_PTR(struct acpi_namespace_node, | |
88 | target_node->object); | |
1da177e4 LT |
89 | } |
90 | ||
91 | /* | |
92 | * For objects that can never change (i.e., the NS node will | |
93 | * permanently point to the same object), we can simply attach | |
94 | * the object to the new NS node. For other objects (such as | |
95 | * Integers, buffers, etc.), we have to point the Alias node | |
96 | * to the original Node. | |
97 | */ | |
98 | switch (target_node->type) { | |
53cf1744 BM |
99 | |
100 | /* For these types, the sub-object can change dynamically via a Store */ | |
101 | ||
1da177e4 LT |
102 | case ACPI_TYPE_INTEGER: |
103 | case ACPI_TYPE_STRING: | |
104 | case ACPI_TYPE_BUFFER: | |
105 | case ACPI_TYPE_PACKAGE: | |
106 | case ACPI_TYPE_BUFFER_FIELD: | |
107 | ||
53cf1744 BM |
108 | /* |
109 | * These types open a new scope, so we need the NS node in order to access | |
110 | * any children. | |
111 | */ | |
112 | case ACPI_TYPE_DEVICE: | |
113 | case ACPI_TYPE_POWER: | |
114 | case ACPI_TYPE_PROCESSOR: | |
115 | case ACPI_TYPE_THERMAL: | |
116 | case ACPI_TYPE_LOCAL_SCOPE: | |
117 | ||
1da177e4 LT |
118 | /* |
119 | * The new alias has the type ALIAS and points to the original | |
53cf1744 | 120 | * NS node, not the object itself. |
1da177e4 LT |
121 | */ |
122 | alias_node->type = ACPI_TYPE_LOCAL_ALIAS; | |
4be44fcd LB |
123 | alias_node->object = |
124 | ACPI_CAST_PTR(union acpi_operand_object, target_node); | |
1da177e4 LT |
125 | break; |
126 | ||
127 | case ACPI_TYPE_METHOD: | |
128 | ||
129 | /* | |
53cf1744 | 130 | * Control method aliases need to be differentiated |
1da177e4 LT |
131 | */ |
132 | alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS; | |
4be44fcd LB |
133 | alias_node->object = |
134 | ACPI_CAST_PTR(union acpi_operand_object, target_node); | |
1da177e4 LT |
135 | break; |
136 | ||
137 | default: | |
138 | ||
139 | /* Attach the original source object to the new Alias Node */ | |
140 | ||
141 | /* | |
142 | * The new alias assumes the type of the target, and it points | |
143 | * to the same object. The reference count of the object has an | |
144 | * additional reference to prevent deletion out from under either the | |
145 | * target node or the alias Node | |
146 | */ | |
4be44fcd LB |
147 | status = acpi_ns_attach_object(alias_node, |
148 | acpi_ns_get_attached_object | |
149 | (target_node), | |
150 | target_node->type); | |
1da177e4 LT |
151 | break; |
152 | } | |
153 | ||
154 | /* Since both operands are Nodes, we don't need to delete them */ | |
155 | ||
4be44fcd | 156 | return_ACPI_STATUS(status); |
1da177e4 LT |
157 | } |
158 | ||
44f6c012 | 159 | /******************************************************************************* |
1da177e4 LT |
160 | * |
161 | * FUNCTION: acpi_ex_create_event | |
162 | * | |
163 | * PARAMETERS: walk_state - Current state | |
164 | * | |
165 | * RETURN: Status | |
166 | * | |
167 | * DESCRIPTION: Create a new event object | |
168 | * | |
44f6c012 | 169 | ******************************************************************************/ |
1da177e4 | 170 | |
4be44fcd | 171 | acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) |
1da177e4 | 172 | { |
4be44fcd LB |
173 | acpi_status status; |
174 | union acpi_operand_object *obj_desc; | |
1da177e4 | 175 | |
b229cf92 | 176 | ACPI_FUNCTION_TRACE(ex_create_event); |
1da177e4 | 177 | |
4be44fcd | 178 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); |
1da177e4 LT |
179 | if (!obj_desc) { |
180 | status = AE_NO_MEMORY; | |
181 | goto cleanup; | |
182 | } | |
183 | ||
184 | /* | |
185 | * Create the actual OS semaphore, with zero initial units -- meaning | |
186 | * that the event is created in an unsignalled state | |
187 | */ | |
4be44fcd | 188 | status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, |
967440e3 | 189 | &obj_desc->event.os_semaphore); |
4be44fcd | 190 | if (ACPI_FAILURE(status)) { |
1da177e4 LT |
191 | goto cleanup; |
192 | } | |
193 | ||
194 | /* Attach object to the Node */ | |
195 | ||
4be44fcd LB |
196 | status = |
197 | acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> | |
198 | operands[0], obj_desc, ACPI_TYPE_EVENT); | |
1da177e4 | 199 | |
4be44fcd | 200 | cleanup: |
1da177e4 LT |
201 | /* |
202 | * Remove local reference to the object (on error, will cause deletion | |
203 | * of both object and semaphore if present.) | |
204 | */ | |
4be44fcd LB |
205 | acpi_ut_remove_reference(obj_desc); |
206 | return_ACPI_STATUS(status); | |
1da177e4 LT |
207 | } |
208 | ||
44f6c012 | 209 | /******************************************************************************* |
1da177e4 LT |
210 | * |
211 | * FUNCTION: acpi_ex_create_mutex | |
212 | * | |
213 | * PARAMETERS: walk_state - Current state | |
214 | * | |
215 | * RETURN: Status | |
216 | * | |
217 | * DESCRIPTION: Create a new mutex object | |
218 | * | |
219 | * Mutex (Name[0], sync_level[1]) | |
220 | * | |
44f6c012 | 221 | ******************************************************************************/ |
1da177e4 | 222 | |
4be44fcd | 223 | acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) |
1da177e4 | 224 | { |
4be44fcd LB |
225 | acpi_status status = AE_OK; |
226 | union acpi_operand_object *obj_desc; | |
1da177e4 | 227 | |
b229cf92 | 228 | ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); |
1da177e4 LT |
229 | |
230 | /* Create the new mutex object */ | |
231 | ||
4be44fcd | 232 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX); |
1da177e4 LT |
233 | if (!obj_desc) { |
234 | status = AE_NO_MEMORY; | |
235 | goto cleanup; | |
236 | } | |
237 | ||
967440e3 BM |
238 | /* Create the actual OS Mutex */ |
239 | ||
240 | status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex); | |
4be44fcd | 241 | if (ACPI_FAILURE(status)) { |
1da177e4 LT |
242 | goto cleanup; |
243 | } | |
244 | ||
245 | /* Init object and attach to NS node */ | |
246 | ||
4be44fcd LB |
247 | obj_desc->mutex.sync_level = |
248 | (u8) walk_state->operands[1]->integer.value; | |
249 | obj_desc->mutex.node = | |
250 | (struct acpi_namespace_node *)walk_state->operands[0]; | |
1da177e4 | 251 | |
61686124 BM |
252 | status = |
253 | acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, | |
254 | ACPI_TYPE_MUTEX); | |
1da177e4 | 255 | |
4be44fcd | 256 | cleanup: |
1da177e4 LT |
257 | /* |
258 | * Remove local reference to the object (on error, will cause deletion | |
259 | * of both object and semaphore if present.) | |
260 | */ | |
4be44fcd LB |
261 | acpi_ut_remove_reference(obj_desc); |
262 | return_ACPI_STATUS(status); | |
1da177e4 LT |
263 | } |
264 | ||
44f6c012 | 265 | /******************************************************************************* |
1da177e4 LT |
266 | * |
267 | * FUNCTION: acpi_ex_create_region | |
268 | * | |
269 | * PARAMETERS: aml_start - Pointer to the region declaration AML | |
270 | * aml_length - Max length of the declaration AML | |
44f6c012 | 271 | * region_space - space_iD for the region |
1da177e4 LT |
272 | * walk_state - Current state |
273 | * | |
274 | * RETURN: Status | |
275 | * | |
276 | * DESCRIPTION: Create a new operation region object | |
277 | * | |
44f6c012 | 278 | ******************************************************************************/ |
1da177e4 LT |
279 | |
280 | acpi_status | |
4be44fcd LB |
281 | acpi_ex_create_region(u8 * aml_start, |
282 | u32 aml_length, | |
283 | u8 region_space, struct acpi_walk_state *walk_state) | |
1da177e4 | 284 | { |
4be44fcd LB |
285 | acpi_status status; |
286 | union acpi_operand_object *obj_desc; | |
287 | struct acpi_namespace_node *node; | |
288 | union acpi_operand_object *region_obj2; | |
1da177e4 | 289 | |
b229cf92 | 290 | ACPI_FUNCTION_TRACE(ex_create_region); |
1da177e4 LT |
291 | |
292 | /* Get the Namespace Node */ | |
293 | ||
294 | node = walk_state->op->common.node; | |
295 | ||
296 | /* | |
297 | * If the region object is already attached to this node, | |
298 | * just return | |
299 | */ | |
4be44fcd LB |
300 | if (acpi_ns_get_attached_object(node)) { |
301 | return_ACPI_STATUS(AE_OK); | |
1da177e4 LT |
302 | } |
303 | ||
304 | /* | |
305 | * Space ID must be one of the predefined IDs, or in the user-defined | |
306 | * range | |
307 | */ | |
308 | if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && | |
4be44fcd | 309 | (region_space < ACPI_USER_REGION_BEGIN)) { |
b229cf92 | 310 | ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", |
b8e4d893 | 311 | region_space)); |
4be44fcd | 312 | return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); |
1da177e4 LT |
313 | } |
314 | ||
4be44fcd LB |
315 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n", |
316 | acpi_ut_get_region_name(region_space), region_space)); | |
1da177e4 LT |
317 | |
318 | /* Create the region descriptor */ | |
319 | ||
4be44fcd | 320 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION); |
1da177e4 LT |
321 | if (!obj_desc) { |
322 | status = AE_NO_MEMORY; | |
323 | goto cleanup; | |
324 | } | |
325 | ||
326 | /* | |
327 | * Remember location in AML stream of address & length | |
328 | * operands since they need to be evaluated at run time. | |
329 | */ | |
4be44fcd | 330 | region_obj2 = obj_desc->common.next_object; |
1da177e4 LT |
331 | region_obj2->extra.aml_start = aml_start; |
332 | region_obj2->extra.aml_length = aml_length; | |
333 | ||
334 | /* Init the region from the operands */ | |
335 | ||
336 | obj_desc->region.space_id = region_space; | |
337 | obj_desc->region.address = 0; | |
338 | obj_desc->region.length = 0; | |
4be44fcd | 339 | obj_desc->region.node = node; |
1da177e4 LT |
340 | |
341 | /* Install the new region object in the parent Node */ | |
342 | ||
4be44fcd | 343 | status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION); |
1da177e4 | 344 | |
4be44fcd | 345 | cleanup: |
1da177e4 LT |
346 | |
347 | /* Remove local reference to the object */ | |
348 | ||
4be44fcd LB |
349 | acpi_ut_remove_reference(obj_desc); |
350 | return_ACPI_STATUS(status); | |
1da177e4 LT |
351 | } |
352 | ||
44f6c012 | 353 | /******************************************************************************* |
1da177e4 LT |
354 | * |
355 | * FUNCTION: acpi_ex_create_processor | |
356 | * | |
357 | * PARAMETERS: walk_state - Current state | |
358 | * | |
359 | * RETURN: Status | |
360 | * | |
361 | * DESCRIPTION: Create a new processor object and populate the fields | |
362 | * | |
363 | * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3]) | |
364 | * | |
44f6c012 | 365 | ******************************************************************************/ |
1da177e4 | 366 | |
4be44fcd | 367 | acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) |
1da177e4 | 368 | { |
4be44fcd LB |
369 | union acpi_operand_object **operand = &walk_state->operands[0]; |
370 | union acpi_operand_object *obj_desc; | |
371 | acpi_status status; | |
1da177e4 | 372 | |
b229cf92 | 373 | ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); |
1da177e4 LT |
374 | |
375 | /* Create the processor object */ | |
376 | ||
4be44fcd | 377 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR); |
1da177e4 | 378 | if (!obj_desc) { |
4be44fcd | 379 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
380 | } |
381 | ||
44f6c012 RM |
382 | /* Initialize the processor object from the operands */ |
383 | ||
4be44fcd | 384 | obj_desc->processor.proc_id = (u8) operand[1]->integer.value; |
61686124 | 385 | obj_desc->processor.length = (u8) operand[3]->integer.value; |
4be44fcd LB |
386 | obj_desc->processor.address = |
387 | (acpi_io_address) operand[2]->integer.value; | |
1da177e4 LT |
388 | |
389 | /* Install the processor object in the parent Node */ | |
390 | ||
4be44fcd LB |
391 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
392 | obj_desc, ACPI_TYPE_PROCESSOR); | |
1da177e4 LT |
393 | |
394 | /* Remove local reference to the object */ | |
395 | ||
4be44fcd LB |
396 | acpi_ut_remove_reference(obj_desc); |
397 | return_ACPI_STATUS(status); | |
1da177e4 LT |
398 | } |
399 | ||
44f6c012 | 400 | /******************************************************************************* |
1da177e4 LT |
401 | * |
402 | * FUNCTION: acpi_ex_create_power_resource | |
403 | * | |
404 | * PARAMETERS: walk_state - Current state | |
405 | * | |
406 | * RETURN: Status | |
407 | * | |
408 | * DESCRIPTION: Create a new power_resource object and populate the fields | |
409 | * | |
410 | * power_resource (Name[0], system_level[1], resource_order[2]) | |
411 | * | |
44f6c012 | 412 | ******************************************************************************/ |
1da177e4 | 413 | |
4be44fcd | 414 | acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) |
1da177e4 | 415 | { |
4be44fcd LB |
416 | union acpi_operand_object **operand = &walk_state->operands[0]; |
417 | acpi_status status; | |
418 | union acpi_operand_object *obj_desc; | |
1da177e4 | 419 | |
b229cf92 | 420 | ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); |
1da177e4 LT |
421 | |
422 | /* Create the power resource object */ | |
423 | ||
4be44fcd | 424 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER); |
1da177e4 | 425 | if (!obj_desc) { |
4be44fcd | 426 | return_ACPI_STATUS(AE_NO_MEMORY); |
1da177e4 LT |
427 | } |
428 | ||
429 | /* Initialize the power object from the operands */ | |
430 | ||
431 | obj_desc->power_resource.system_level = (u8) operand[1]->integer.value; | |
4be44fcd LB |
432 | obj_desc->power_resource.resource_order = |
433 | (u16) operand[2]->integer.value; | |
1da177e4 LT |
434 | |
435 | /* Install the power resource object in the parent Node */ | |
436 | ||
4be44fcd LB |
437 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
438 | obj_desc, ACPI_TYPE_POWER); | |
1da177e4 LT |
439 | |
440 | /* Remove local reference to the object */ | |
441 | ||
4be44fcd LB |
442 | acpi_ut_remove_reference(obj_desc); |
443 | return_ACPI_STATUS(status); | |
1da177e4 | 444 | } |
1da177e4 LT |
445 | #endif |
446 | ||
44f6c012 | 447 | /******************************************************************************* |
1da177e4 LT |
448 | * |
449 | * FUNCTION: acpi_ex_create_method | |
450 | * | |
451 | * PARAMETERS: aml_start - First byte of the method's AML | |
452 | * aml_length - AML byte count for this method | |
453 | * walk_state - Current state | |
454 | * | |
455 | * RETURN: Status | |
456 | * | |
457 | * DESCRIPTION: Create a new method object | |
458 | * | |
44f6c012 | 459 | ******************************************************************************/ |
1da177e4 LT |
460 | |
461 | acpi_status | |
4be44fcd LB |
462 | acpi_ex_create_method(u8 * aml_start, |
463 | u32 aml_length, struct acpi_walk_state *walk_state) | |
1da177e4 | 464 | { |
4be44fcd LB |
465 | union acpi_operand_object **operand = &walk_state->operands[0]; |
466 | union acpi_operand_object *obj_desc; | |
467 | acpi_status status; | |
468 | u8 method_flags; | |
1da177e4 | 469 | |
b229cf92 | 470 | ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); |
1da177e4 LT |
471 | |
472 | /* Create a new method object */ | |
473 | ||
4be44fcd | 474 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); |
1da177e4 | 475 | if (!obj_desc) { |
f3d2e786 BM |
476 | status = AE_NO_MEMORY; |
477 | goto exit; | |
1da177e4 LT |
478 | } |
479 | ||
480 | /* Save the method's AML pointer and length */ | |
481 | ||
482 | obj_desc->method.aml_start = aml_start; | |
483 | obj_desc->method.aml_length = aml_length; | |
484 | ||
485 | /* | |
967440e3 | 486 | * Disassemble the method flags. Split off the Arg Count |
1da177e4 LT |
487 | * for efficiency |
488 | */ | |
489 | method_flags = (u8) operand[1]->integer.value; | |
490 | ||
4be44fcd LB |
491 | obj_desc->method.method_flags = |
492 | (u8) (method_flags & ~AML_METHOD_ARG_COUNT); | |
493 | obj_desc->method.param_count = | |
494 | (u8) (method_flags & AML_METHOD_ARG_COUNT); | |
1da177e4 LT |
495 | |
496 | /* | |
967440e3 | 497 | * Get the sync_level. If method is serialized, a mutex will be |
1da177e4 LT |
498 | * created for this method when it is parsed. |
499 | */ | |
4d2acd9e | 500 | if (method_flags & AML_METHOD_SERIALIZED) { |
1da177e4 | 501 | /* |
967440e3 BM |
502 | * ACPI 1.0: sync_level = 0 |
503 | * ACPI 2.0: sync_level = sync_level in method declaration | |
1da177e4 | 504 | */ |
967440e3 BM |
505 | obj_desc->method.sync_level = (u8) |
506 | ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4); | |
1da177e4 LT |
507 | } |
508 | ||
509 | /* Attach the new object to the method Node */ | |
510 | ||
4be44fcd LB |
511 | status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0], |
512 | obj_desc, ACPI_TYPE_METHOD); | |
1da177e4 LT |
513 | |
514 | /* Remove local reference to the object */ | |
515 | ||
4be44fcd | 516 | acpi_ut_remove_reference(obj_desc); |
1da177e4 | 517 | |
f3d2e786 | 518 | exit: |
1da177e4 LT |
519 | /* Remove a reference to the operand */ |
520 | ||
4be44fcd LB |
521 | acpi_ut_remove_reference(operand[1]); |
522 | return_ACPI_STATUS(status); | |
1da177e4 | 523 | } |