[linux.git] / drivers / acpi / acpica / dsargs.c

/******************************************************************************
 *
 * Module Name: dsargs - Support for execution of dynamic arguments for static
 *                       objects (regions, fields, buffer fields, etc.)
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2016, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#include <acpi/acpi.h>
#include "accommon.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acnamesp.h"

#define _COMPONENT          ACPI_DISPATCHER
ACPI_MODULE_NAME("dsargs")

/* Local prototypes */
static acpi_status
acpi_ds_execute_arguments(struct acpi_namespace_node *node,
			  struct acpi_namespace_node *scope_node,
			  u32 aml_length, u8 *aml_start);

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_execute_arguments
 *
 * PARAMETERS:  node                - Object NS node
 *              scope_node          - Parent NS node
 *              aml_length          - Length of executable AML
 *              aml_start           - Pointer to the AML
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Late (deferred) execution of region or field arguments
 *
 ******************************************************************************/

static acpi_status
acpi_ds_execute_arguments(struct acpi_namespace_node *node,
			  struct acpi_namespace_node *scope_node,
			  u32 aml_length, u8 *aml_start)
{
	acpi_status status;
	union acpi_parse_object *op;
	struct acpi_walk_state *walk_state;

	ACPI_FUNCTION_TRACE(ds_execute_arguments);

	/* Allocate a new parser op to be the root of the parsed tree */

	op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
	if (!op) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Save the Node for use in acpi_ps_parse_aml */

	op->common.node = scope_node;

	/* Create and initialize a new parser state */

	walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
	if (!walk_state) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
				       aml_length, NULL, ACPI_IMODE_LOAD_PASS1);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		goto cleanup;
	}

	/* Mark this parse as a deferred opcode */

	walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP;
	walk_state->deferred_node = node;

	/* Pass1: Parse the entire declaration */

	status = acpi_ps_parse_aml(walk_state);
	if (ACPI_FAILURE(status)) {
		goto cleanup;
	}

	/* Get and init the Op created above */

	op->common.node = node;
	acpi_ps_delete_parse_tree(op);

	/* Evaluate the deferred arguments */

	op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
	if (!op) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	op->common.node = scope_node;

	/* Create and initialize a new parser state */

	walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
	if (!walk_state) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	/* Execute the opcode and arguments */

	status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
				       aml_length, NULL, ACPI_IMODE_EXECUTE);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		goto cleanup;
	}

	/* Mark this execution as a deferred opcode */

	walk_state->deferred_node = node;
	status = acpi_ps_parse_aml(walk_state);

cleanup:
	acpi_ps_delete_parse_tree(op);
	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_get_buffer_field_arguments
 *
 * PARAMETERS:  obj_desc        - A valid buffer_field object
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Get buffer_field Buffer and Index. This implements the late
 *              evaluation of these field attributes.
 *
 ******************************************************************************/

acpi_status
acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
{
	union acpi_operand_object *extra_desc;
	struct acpi_namespace_node *node;
	acpi_status status;

	ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);

	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
		return_ACPI_STATUS(AE_OK);
	}

	/* Get the AML pointer (method object) and buffer_field node */

	extra_desc = acpi_ns_get_secondary_object(obj_desc);
	node = obj_desc->buffer_field.node;

	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
			(ACPI_TYPE_BUFFER_FIELD, node, NULL));

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
			  acpi_ut_get_node_name(node)));

	/* Execute the AML code for the term_arg arguments */

	status = acpi_ds_execute_arguments(node, node->parent,
					   extra_desc->extra.aml_length,
					   extra_desc->extra.aml_start);
	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_get_bank_field_arguments
 *
 * PARAMETERS:  obj_desc        - A valid bank_field object
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Get bank_field bank_value. This implements the late
 *              evaluation of these field attributes.
 *
 ******************************************************************************/

acpi_status
acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc)
{
	union acpi_operand_object *extra_desc;
	struct acpi_namespace_node *node;
	acpi_status status;

	ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc);

	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
		return_ACPI_STATUS(AE_OK);
	}

	/* Get the AML pointer (method object) and bank_field node */

	extra_desc = acpi_ns_get_secondary_object(obj_desc);
	node = obj_desc->bank_field.node;

	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
			(ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL));

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
			  acpi_ut_get_node_name(node)));

	/* Execute the AML code for the term_arg arguments */

	status = acpi_ds_execute_arguments(node, node->parent,
					   extra_desc->extra.aml_length,
					   extra_desc->extra.aml_start);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	status = acpi_ut_add_address_range(obj_desc->region.space_id,
					   obj_desc->region.address,
					   obj_desc->region.length, node);
	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_get_buffer_arguments
 *
 * PARAMETERS:  obj_desc        - A valid Buffer object
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Get Buffer length and initializer byte list. This implements
 *              the late evaluation of these attributes.
 *
 ******************************************************************************/

acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
{
	struct acpi_namespace_node *node;
	acpi_status status;

	ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);

	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
		return_ACPI_STATUS(AE_OK);
	}

	/* Get the Buffer node */

	node = obj_desc->buffer.node;
	if (!node) {
		ACPI_ERROR((AE_INFO,
			    "No pointer back to namespace node in buffer object %p",
			    obj_desc));
		return_ACPI_STATUS(AE_AML_INTERNAL);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n"));

	/* Execute the AML code for the term_arg arguments */

	status = acpi_ds_execute_arguments(node, node,
					   obj_desc->buffer.aml_length,
					   obj_desc->buffer.aml_start);
	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_get_package_arguments
 *
 * PARAMETERS:  obj_desc        - A valid Package object
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Get Package length and initializer byte list. This implements
 *              the late evaluation of these attributes.
 *
 ******************************************************************************/

acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
{
	struct acpi_namespace_node *node;
	acpi_status status;

	ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);

	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
		return_ACPI_STATUS(AE_OK);
	}

	/* Get the Package node */

	node = obj_desc->package.node;
	if (!node) {
		ACPI_ERROR((AE_INFO,
			    "No pointer back to namespace node in package %p",
			    obj_desc));
		return_ACPI_STATUS(AE_AML_INTERNAL);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));

	/* Execute the AML code for the term_arg arguments */

	status = acpi_ds_execute_arguments(node, node,
					   obj_desc->package.aml_length,
					   obj_desc->package.aml_start);
	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ds_get_region_arguments
 *
 * PARAMETERS:  obj_desc        - A valid region object
 *
 * RETURN:      Status.
 *
 * DESCRIPTION: Get region address and length. This implements the late
 *              evaluation of these region attributes.
 *
 ******************************************************************************/

acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
{
	struct acpi_namespace_node *node;
	acpi_status status;
	union acpi_operand_object *extra_desc;

	ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);

	if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
		return_ACPI_STATUS(AE_OK);
	}

	extra_desc = acpi_ns_get_secondary_object(obj_desc);
	if (!extra_desc) {
		return_ACPI_STATUS(AE_NOT_EXIST);
	}

	/* Get the Region node */

	node = obj_desc->region.node;

	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
			(ACPI_TYPE_REGION, node, NULL));

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
			  "[%4.4s] OpRegion Arg Init at AML %p\n",
			  acpi_ut_get_node_name(node),
			  extra_desc->extra.aml_start));

	/* Execute the argument AML */

	status = acpi_ds_execute_arguments(node, extra_desc->extra.scope_node,
					   extra_desc->extra.aml_length,
					   extra_desc->extra.aml_start);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	status = acpi_ut_add_address_range(obj_desc->region.space_id,
					   obj_desc->region.address,
					   obj_desc->region.length, node);
	return_ACPI_STATUS(status);
}
Commit	Line	Data
9ad19ac4 BM	1	/******************************************************************************
	2	*
	3	* Module Name: dsargs - Support for execution of dynamic arguments for static
	4	* objects (regions, fields, buffer fields, etc.)
	5	*
	6	*****************************************************************************/
	7
	8	/*
c8100dc4	9	* Copyright (C) 2000 - 2016, Intel Corp.
9ad19ac4 BM	10	* All rights reserved.
	11	*
	12	* Redistribution and use in source and binary forms, with or without
	13	* modification, are permitted provided that the following conditions
	14	* are met:
	15	* 1. Redistributions of source code must retain the above copyright
	16	* notice, this list of conditions, and the following disclaimer,
	17	* without modification.
	18	* 2. Redistributions in binary form must reproduce at minimum a disclaimer
	19	* substantially similar to the "NO WARRANTY" disclaimer below
	20	* ("Disclaimer") and any redistribution must be conditioned upon
	21	* including a substantially similar Disclaimer requirement for further
	22	* binary redistribution.
	23	* 3. Neither the names of the above-listed copyright holders nor the names
	24	* of any contributors may be used to endorse or promote products derived
	25	* from this software without specific prior written permission.
	26	*
	27	* Alternatively, this software may be distributed under the terms of the
	28	* GNU General Public License ("GPL") version 2 as published by the Free
	29	* Software Foundation.
	30	*
	31	* NO WARRANTY
	32	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	33	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	34	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
	35	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	36	* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	37	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	38	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	39	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	40	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	41	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	42	* POSSIBILITY OF SUCH DAMAGES.
	43	*/
	44
	45	#include <acpi/acpi.h>
	46	#include "accommon.h"
	47	#include "acparser.h"
	48	#include "amlcode.h"
	49	#include "acdispat.h"
	50	#include "acnamesp.h"
	51
	52	#define _COMPONENT ACPI_DISPATCHER
	53	ACPI_MODULE_NAME("dsargs")
	54
	55	/* Local prototypes */
	56	static acpi_status
	57	acpi_ds_execute_arguments(struct acpi_namespace_node *node,
	58	struct acpi_namespace_node *scope_node,
	59	u32 aml_length, u8 *aml_start);
	60
	61	/*******************************************************************************
	62	*
	63	* FUNCTION: acpi_ds_execute_arguments
	64	*
ba494bee	65	* PARAMETERS: node - Object NS node
9ad19ac4 BM	66	* scope_node - Parent NS node
	67	* aml_length - Length of executable AML
	68	* aml_start - Pointer to the AML
	69	*
	70	* RETURN: Status.
	71	*
	72	* DESCRIPTION: Late (deferred) execution of region or field arguments
	73	*
	74	******************************************************************************/
	75
	76	static acpi_status
	77	acpi_ds_execute_arguments(struct acpi_namespace_node *node,
	78	struct acpi_namespace_node *scope_node,
	79	u32 aml_length, u8 *aml_start)
	80	{
	81	acpi_status status;
	82	union acpi_parse_object *op;
	83	struct acpi_walk_state *walk_state;
	84
	85	ACPI_FUNCTION_TRACE(ds_execute_arguments);
	86
	87	/* Allocate a new parser op to be the root of the parsed tree */
	88
62eb935b	89	op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
9ad19ac4 BM	90	if (!op) {
	91	return_ACPI_STATUS(AE_NO_MEMORY);
	92	}
	93
	94	/* Save the Node for use in acpi_ps_parse_aml */
	95
	96	op->common.node = scope_node;
	97
	98	/* Create and initialize a new parser state */
	99
	100	walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
	101	if (!walk_state) {
	102	status = AE_NO_MEMORY;
	103	goto cleanup;
	104	}
	105
	106	status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
	107	aml_length, NULL, ACPI_IMODE_LOAD_PASS1);
	108	if (ACPI_FAILURE(status)) {
	109	acpi_ds_delete_walk_state(walk_state);
	110	goto cleanup;
	111	}
	112
	113	/* Mark this parse as a deferred opcode */
	114
	115	walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP;
	116	walk_state->deferred_node = node;
	117
	118	/* Pass1: Parse the entire declaration */
	119
	120	status = acpi_ps_parse_aml(walk_state);
	121	if (ACPI_FAILURE(status)) {
	122	goto cleanup;
	123	}
	124
	125	/* Get and init the Op created above */
	126
	127	op->common.node = node;
	128	acpi_ps_delete_parse_tree(op);
	129
	130	/* Evaluate the deferred arguments */
	131
62eb935b	132	op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
9ad19ac4 BM	133	if (!op) {
	134	return_ACPI_STATUS(AE_NO_MEMORY);
	135	}
	136
	137	op->common.node = scope_node;
	138
	139	/* Create and initialize a new parser state */
	140
	141	walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
	142	if (!walk_state) {
	143	status = AE_NO_MEMORY;
	144	goto cleanup;
	145	}
	146
	147	/* Execute the opcode and arguments */
	148
	149	status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
	150	aml_length, NULL, ACPI_IMODE_EXECUTE);
	151	if (ACPI_FAILURE(status)) {
	152	acpi_ds_delete_walk_state(walk_state);
	153	goto cleanup;
	154	}
	155
	156	/* Mark this execution as a deferred opcode */
	157
	158	walk_state->deferred_node = node;
	159	status = acpi_ps_parse_aml(walk_state);
	160
10622bf8	161	cleanup:
9ad19ac4 BM	162	acpi_ps_delete_parse_tree(op);
	163	return_ACPI_STATUS(status);
	164	}
	165
	166	/*******************************************************************************
	167	*
	168	* FUNCTION: acpi_ds_get_buffer_field_arguments
	169	*
	170	* PARAMETERS: obj_desc - A valid buffer_field object
	171	*
	172	* RETURN: Status.
	173	*
	174	* DESCRIPTION: Get buffer_field Buffer and Index. This implements the late
	175	* evaluation of these field attributes.
	176	*
	177	******************************************************************************/
	178
	179	acpi_status
	180	acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
	181	{
	182	union acpi_operand_object *extra_desc;
	183	struct acpi_namespace_node *node;
	184	acpi_status status;
	185
	186	ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);
	187
	188	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
	189	return_ACPI_STATUS(AE_OK);
	190	}
	191
	192	/* Get the AML pointer (method object) and buffer_field node */
	193
	194	extra_desc = acpi_ns_get_secondary_object(obj_desc);
	195	node = obj_desc->buffer_field.node;
	196
1fad8738 BM	197	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
1fad8738 BM	198	(ACPI_TYPE_BUFFER_FIELD, node, NULL));
9ad19ac4 BM	199
	200	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
	201	acpi_ut_get_node_name(node)));
	202
	203	/* Execute the AML code for the term_arg arguments */
	204
	205	status = acpi_ds_execute_arguments(node, node->parent,
	206	extra_desc->extra.aml_length,
	207	extra_desc->extra.aml_start);
	208	return_ACPI_STATUS(status);
	209	}
	210
	211	/*******************************************************************************
	212	*
	213	* FUNCTION: acpi_ds_get_bank_field_arguments
	214	*
	215	* PARAMETERS: obj_desc - A valid bank_field object
	216	*
	217	* RETURN: Status.
	218	*
	219	* DESCRIPTION: Get bank_field bank_value. This implements the late
	220	* evaluation of these field attributes.
	221	*
	222	******************************************************************************/
	223
	224	acpi_status
	225	acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc)
	226	{
	227	union acpi_operand_object *extra_desc;
	228	struct acpi_namespace_node *node;
	229	acpi_status status;
	230
	231	ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc);
	232
	233	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
	234	return_ACPI_STATUS(AE_OK);
	235	}
	236
	237	/* Get the AML pointer (method object) and bank_field node */
	238
	239	extra_desc = acpi_ns_get_secondary_object(obj_desc);
	240	node = obj_desc->bank_field.node;
	241
	242	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
	243	(ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL));
	244
	245	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
	246	acpi_ut_get_node_name(node)));
	247
	248	/* Execute the AML code for the term_arg arguments */
	249
	250	status = acpi_ds_execute_arguments(node, node->parent,
	251	extra_desc->extra.aml_length,
	252	extra_desc->extra.aml_start);
f654c0fe LM	253	if (ACPI_FAILURE(status)) {
	254	return_ACPI_STATUS(status);
	255	}
	256
	257	status = acpi_ut_add_address_range(obj_desc->region.space_id,
	258	obj_desc->region.address,
	259	obj_desc->region.length, node);
9ad19ac4 BM	260	return_ACPI_STATUS(status);
	261	}
	262
	263	/*******************************************************************************
	264	*
	265	* FUNCTION: acpi_ds_get_buffer_arguments
	266	*
	267	* PARAMETERS: obj_desc - A valid Buffer object
	268	*
	269	* RETURN: Status.
	270	*
	271	* DESCRIPTION: Get Buffer length and initializer byte list. This implements
	272	* the late evaluation of these attributes.
	273	*
	274	******************************************************************************/
	275
	276	acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
	277	{
	278	struct acpi_namespace_node *node;
	279	acpi_status status;
	280
	281	ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);
	282
	283	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
	284	return_ACPI_STATUS(AE_OK);
	285	}
	286
	287	/* Get the Buffer node */
	288
	289	node = obj_desc->buffer.node;
	290	if (!node) {
	291	ACPI_ERROR((AE_INFO,
	292	"No pointer back to namespace node in buffer object %p",
	293	obj_desc));
	294	return_ACPI_STATUS(AE_AML_INTERNAL);
	295	}
	296
	297	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n"));
	298
	299	/* Execute the AML code for the term_arg arguments */
	300
	301	status = acpi_ds_execute_arguments(node, node,
	302	obj_desc->buffer.aml_length,
	303	obj_desc->buffer.aml_start);
	304	return_ACPI_STATUS(status);
	305	}
	306
	307	/*******************************************************************************
	308	*
	309	* FUNCTION: acpi_ds_get_package_arguments
	310	*
	311	* PARAMETERS: obj_desc - A valid Package object
	312	*
	313	* RETURN: Status.
	314	*
	315	* DESCRIPTION: Get Package length and initializer byte list. This implements
	316	* the late evaluation of these attributes.
	317	*
	318	******************************************************************************/
	319
	320	acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
	321	{
	322	struct acpi_namespace_node *node;
	323	acpi_status status;
324
325	ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);
326
327	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
328	return_ACPI_STATUS(AE_OK);
329	}
330
331	/* Get the Package node */
332
333	node = obj_desc->package.node;
334	if (!node) {
335	ACPI_ERROR((AE_INFO,
336	"No pointer back to namespace node in package %p",
337	obj_desc));
338	return_ACPI_STATUS(AE_AML_INTERNAL);
339	}
340
341	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));
342
343	/* Execute the AML code for the term_arg arguments */
344
345	status = acpi_ds_execute_arguments(node, node,
346	obj_desc->package.aml_length,
347	obj_desc->package.aml_start);
348	return_ACPI_STATUS(status);
349	}
350
351	/*******************************************************************************
352	*
353	* FUNCTION: acpi_ds_get_region_arguments
354	*
355	* PARAMETERS: obj_desc - A valid region object
356	*
357	* RETURN: Status.
358	*
359	* DESCRIPTION: Get region address and length. This implements the late
360	* evaluation of these region attributes.
361	*
362	******************************************************************************/
363
364	acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
365	{
366	struct acpi_namespace_node *node;
367	acpi_status status;
368	union acpi_operand_object *extra_desc;
369
370	ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);
371
372	if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
373	return_ACPI_STATUS(AE_OK);
374	}
375
376	extra_desc = acpi_ns_get_secondary_object(obj_desc);
377	if (!extra_desc) {
378	return_ACPI_STATUS(AE_NOT_EXIST);
379	}
380
381	/* Get the Region node */
382
383	node = obj_desc->region.node;
384
385	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
386	(ACPI_TYPE_REGION, node, NULL));
387
1fad8738 BM	388	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
1fad8738 BM	389	"[%4.4s] OpRegion Arg Init at AML %p\n",
9ad19ac4 BM	390	acpi_ut_get_node_name(node),
	391	extra_desc->extra.aml_start));
	392
	393	/* Execute the argument AML */
	394
8931d9ea	395	status = acpi_ds_execute_arguments(node, extra_desc->extra.scope_node,
9ad19ac4 BM	396	extra_desc->extra.aml_length,
9ad19ac4 BM	397	extra_desc->extra.aml_start);
da4d8b28 LM	398	if (ACPI_FAILURE(status)) {
	399	return_ACPI_STATUS(status);
	400	}
	401
f654c0fe LM	402	status = acpi_ut_add_address_range(obj_desc->region.space_id,
	403	obj_desc->region.address,
	404	obj_desc->region.length, node);
9ad19ac4 BM	405	return_ACPI_STATUS(status);
9ad19ac4 BM	406	}