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