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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/dispatcher/dsutils.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dispatcher/dsutils.c')
-rw-r--r--drivers/acpi/dispatcher/dsutils.c869
1 files changed, 0 insertions, 869 deletions
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
deleted file mode 100644
index 9c88846ca2c..00000000000
--- a/drivers/acpi/dispatcher/dsutils.c
+++ /dev/null
@@ -1,869 +0,0 @@
-/*******************************************************************************
- *
- * Module Name: dsutils - Dispatcher utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, 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 <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsutils")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_clear_implicit_return
- *
- * PARAMETERS: walk_state - Current State
- *
- * RETURN: None.
- *
- * DESCRIPTION: Clear and remove a reference on an implicit return value. Used
- * to delete "stale" return values (if enabled, the return value
- * from every operator is saved at least momentarily, in case the
- * parent method exits.)
- *
- ******************************************************************************/
-void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state)
-{
- ACPI_FUNCTION_NAME(ds_clear_implicit_return);
-
- /*
- * Slack must be enabled for this feature
- */
- if (!acpi_gbl_enable_interpreter_slack) {
- return;
- }
-
- if (walk_state->implicit_return_obj) {
- /*
- * Delete any "stale" implicit return. However, in
- * complex statements, the implicit return value can be
- * bubbled up several levels.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Removing reference on stale implicit return obj %p\n",
- walk_state->implicit_return_obj));
-
- acpi_ut_remove_reference(walk_state->implicit_return_obj);
- walk_state->implicit_return_obj = NULL;
- }
-}
-
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_do_implicit_return
- *
- * PARAMETERS: return_desc - The return value
- * walk_state - Current State
- * add_reference - True if a reference should be added to the
- * return object
- *
- * RETURN: TRUE if implicit return enabled, FALSE otherwise
- *
- * DESCRIPTION: Implements the optional "implicit return". We save the result
- * of every ASL operator and control method invocation in case the
- * parent method exit. Before storing a new return value, we
- * delete the previous return value.
- *
- ******************************************************************************/
-
-u8
-acpi_ds_do_implicit_return(union acpi_operand_object *return_desc,
- struct acpi_walk_state *walk_state, u8 add_reference)
-{
- ACPI_FUNCTION_NAME(ds_do_implicit_return);
-
- /*
- * Slack must be enabled for this feature, and we must
- * have a valid return object
- */
- if ((!acpi_gbl_enable_interpreter_slack) || (!return_desc)) {
- return (FALSE);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result %p will be implicitly returned; Prev=%p\n",
- return_desc, walk_state->implicit_return_obj));
-
- /*
- * Delete any "stale" implicit return value first. However, in
- * complex statements, the implicit return value can be
- * bubbled up several levels, so we don't clear the value if it
- * is the same as the return_desc.
- */
- if (walk_state->implicit_return_obj) {
- if (walk_state->implicit_return_obj == return_desc) {
- return (TRUE);
- }
- acpi_ds_clear_implicit_return(walk_state);
- }
-
- /* Save the implicit return value, add a reference if requested */
-
- walk_state->implicit_return_obj = return_desc;
- if (add_reference) {
- acpi_ut_add_reference(return_desc);
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_is_result_used
- *
- * PARAMETERS: Op - Current Op
- * walk_state - Current State
- *
- * RETURN: TRUE if result is used, FALSE otherwise
- *
- * DESCRIPTION: Check if a result object will be used by the parent
- *
- ******************************************************************************/
-
-u8
-acpi_ds_is_result_used(union acpi_parse_object * op,
- struct acpi_walk_state * walk_state)
-{
- const struct acpi_opcode_info *parent_info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op);
-
- /* Must have both an Op and a Result Object */
-
- if (!op) {
- ACPI_ERROR((AE_INFO, "Null Op"));
- return_UINT8(TRUE);
- }
-
- /*
- * We know that this operator is not a
- * Return() operator (would not come here.) The following code is the
- * optional support for a so-called "implicit return". Some AML code
- * assumes that the last value of the method is "implicitly" returned
- * to the caller. Just save the last result as the return value.
- * NOTE: this is optional because the ASL language does not actually
- * support this behavior.
- */
- (void)acpi_ds_do_implicit_return(walk_state->result_obj, walk_state,
- TRUE);
-
- /*
- * Now determine if the parent will use the result
- *
- * If there is no parent, or the parent is a scope_op, we are executing
- * at the method level. An executing method typically has no parent,
- * since each method is parsed separately. A method invoked externally
- * via execute_control_method has a scope_op as the parent.
- */
- if ((!op->common.parent) ||
- (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
-
- /* No parent, the return value cannot possibly be used */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "At Method level, result of [%s] not used\n",
- acpi_ps_get_opcode_name(op->common.
- aml_opcode)));
- return_UINT8(FALSE);
- }
-
- /* Get info on the parent. The root_op is AML_SCOPE */
-
- parent_info =
- acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode);
- if (parent_info->class == AML_CLASS_UNKNOWN) {
- ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op));
- return_UINT8(FALSE);
- }
-
- /*
- * Decide what to do with the result based on the parent. If
- * the parent opcode will not use the result, delete the object.
- * Otherwise leave it as is, it will be deleted when it is used
- * as an operand later.
- */
- switch (parent_info->class) {
- case AML_CLASS_CONTROL:
-
- switch (op->common.parent->common.aml_opcode) {
- case AML_RETURN_OP:
-
- /* Never delete the return value associated with a return opcode */
-
- goto result_used;
-
- case AML_IF_OP:
- case AML_WHILE_OP:
-
- /*
- * If we are executing the predicate AND this is the predicate op,
- * we will use the return value
- */
- if ((walk_state->control_state->common.state ==
- ACPI_CONTROL_PREDICATE_EXECUTING)
- && (walk_state->control_state->control.
- predicate_op == op)) {
- goto result_used;
- }
- break;
-
- default:
- /* Ignore other control opcodes */
- break;
- }
-
- /* The general control opcode returns no result */
-
- goto result_not_used;
-
- case AML_CLASS_CREATE:
-
- /*
- * These opcodes allow term_arg(s) as operands and therefore
- * the operands can be method calls. The result is used.
- */
- goto result_used;
-
- case AML_CLASS_NAMED_OBJECT:
-
- if ((op->common.parent->common.aml_opcode == AML_REGION_OP) ||
- (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP)
- || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode == AML_BUFFER_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_INT_EVAL_SUBTREE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_BANK_FIELD_OP)) {
- /*
- * These opcodes allow term_arg(s) as operands and therefore
- * the operands can be method calls. The result is used.
- */
- goto result_used;
- }
-
- goto result_not_used;
-
- default:
-
- /*
- * In all other cases. the parent will actually use the return
- * object, so keep it.
- */
- goto result_used;
- }
-
- result_used:
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result of [%s] used by Parent [%s] Op=%p\n",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- acpi_ps_get_opcode_name(op->common.parent->common.
- aml_opcode), op));
-
- return_UINT8(TRUE);
-
- result_not_used:
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result of [%s] not used by Parent [%s] Op=%p\n",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- acpi_ps_get_opcode_name(op->common.parent->common.
- aml_opcode), op));
-
- return_UINT8(FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_delete_result_if_not_used
- *
- * PARAMETERS: Op - Current parse Op
- * result_obj - Result of the operation
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Used after interpretation of an opcode. If there is an internal
- * result descriptor, check if the parent opcode will actually use
- * this result. If not, delete the result now so that it will
- * not become orphaned.
- *
- ******************************************************************************/
-
-void
-acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
- union acpi_operand_object *result_obj,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj);
-
- if (!op) {
- ACPI_ERROR((AE_INFO, "Null Op"));
- return_VOID;
- }
-
- if (!result_obj) {
- return_VOID;
- }
-
- if (!acpi_ds_is_result_used(op, walk_state)) {
-
- /* Must pop the result stack (obj_desc should be equal to result_obj) */
-
- status = acpi_ds_result_pop(&obj_desc, walk_state);
- if (ACPI_SUCCESS(status)) {
- acpi_ut_remove_reference(result_obj);
- }
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_resolve_operands
- *
- * PARAMETERS: walk_state - Current walk state with operands on stack
- *
- * RETURN: Status
- *
- * DESCRIPTION: Resolve all operands to their values. Used to prepare
- * arguments to a control method invocation (a call from one
- * method to another.)
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state)
-{
- u32 i;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state);
-
- /*
- * Attempt to resolve each of the valid operands
- * Method arguments are passed by reference, not by value. This means
- * that the actual objects are passed, not copies of the objects.
- */
- for (i = 0; i < walk_state->num_operands; i++) {
- status =
- acpi_ex_resolve_to_value(&walk_state->operands[i],
- walk_state);
- if (ACPI_FAILURE(status)) {
- break;
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_clear_operands
- *
- * PARAMETERS: walk_state - Current walk state with operands on stack
- *
- * RETURN: None
- *
- * DESCRIPTION: Clear all operands on the current walk state operand stack.
- *
- ******************************************************************************/
-
-void acpi_ds_clear_operands(struct acpi_walk_state *walk_state)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state);
-
- /* Remove a reference on each operand on the stack */
-
- for (i = 0; i < walk_state->num_operands; i++) {
- /*
- * Remove a reference to all operands, including both
- * "Arguments" and "Targets".
- */
- acpi_ut_remove_reference(walk_state->operands[i]);
- walk_state->operands[i] = NULL;
- }
-
- walk_state->num_operands = 0;
- return_VOID;
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_operand
- *
- * PARAMETERS: walk_state - Current walk state
- * Arg - Parse object for the argument
- * arg_index - Which argument (zero based)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parse tree object that is an argument to an AML
- * opcode to the equivalent interpreter object. This may include
- * looking up a name or entering a new name into the internal
- * namespace.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_operand(struct acpi_walk_state *walk_state,
- union acpi_parse_object *arg, u32 arg_index)
-{
- acpi_status status = AE_OK;
- char *name_string;
- u32 name_length;
- union acpi_operand_object *obj_desc;
- union acpi_parse_object *parent_op;
- u16 opcode;
- acpi_interpreter_mode interpreter_mode;
- const struct acpi_opcode_info *op_info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg);
-
- /* A valid name must be looked up in the namespace */
-
- if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
- (arg->common.value.string) &&
- !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n",
- arg));
-
- /* Get the entire name string from the AML stream */
-
- status =
- acpi_ex_get_name_string(ACPI_TYPE_ANY,
- arg->common.value.buffer,
- &name_string, &name_length);
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* All prefixes have been handled, and the name is in name_string */
-
- /*
- * Special handling for buffer_field declarations. This is a deferred
- * opcode that unfortunately defines the field name as the last
- * parameter instead of the first. We get here when we are performing
- * the deferred execution, so the actual name of the field is already
- * in the namespace. We don't want to attempt to look it up again
- * because we may be executing in a different scope than where the
- * actual opcode exists.
- */
- if ((walk_state->deferred_node) &&
- (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
- && (arg_index ==
- (u32) ((walk_state->opcode ==
- AML_CREATE_FIELD_OP) ? 3 : 2))) {
- obj_desc =
- ACPI_CAST_PTR(union acpi_operand_object,
- walk_state->deferred_node);
- status = AE_OK;
- } else { /* All other opcodes */
-
- /*
- * Differentiate between a namespace "create" operation
- * versus a "lookup" operation (IMODE_LOAD_PASS2 vs.
- * IMODE_EXECUTE) in order to support the creation of
- * namespace objects during the execution of control methods.
- */
- parent_op = arg->common.parent;
- op_info =
- acpi_ps_get_opcode_info(parent_op->common.
- aml_opcode);
- if ((op_info->flags & AML_NSNODE)
- && (parent_op->common.aml_opcode !=
- AML_INT_METHODCALL_OP)
- && (parent_op->common.aml_opcode != AML_REGION_OP)
- && (parent_op->common.aml_opcode !=
- AML_INT_NAMEPATH_OP)) {
-
- /* Enter name into namespace if not found */
-
- interpreter_mode = ACPI_IMODE_LOAD_PASS2;
- } else {
- /* Return a failure if name not found */
-
- interpreter_mode = ACPI_IMODE_EXECUTE;
- }
-
- status =
- acpi_ns_lookup(walk_state->scope_info, name_string,
- ACPI_TYPE_ANY, interpreter_mode,
- ACPI_NS_SEARCH_PARENT |
- ACPI_NS_DONT_OPEN_SCOPE, walk_state,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_namespace_node,
- &obj_desc));
- /*
- * The only case where we pass through (ignore) a NOT_FOUND
- * error is for the cond_ref_of opcode.
- */
- if (status == AE_NOT_FOUND) {
- if (parent_op->common.aml_opcode ==
- AML_COND_REF_OF_OP) {
- /*
- * For the Conditional Reference op, it's OK if
- * the name is not found; We just need a way to
- * indicate this to the interpreter, set the
- * object to the root
- */
- obj_desc = ACPI_CAST_PTR(union
- acpi_operand_object,
- acpi_gbl_root_node);
- status = AE_OK;
- } else {
- /*
- * We just plain didn't find it -- which is a
- * very serious error at this point
- */
- status = AE_AML_NAME_NOT_FOUND;
- }
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(name_string, status);
- }
- }
-
- /* Free the namestring created above */
-
- ACPI_FREE(name_string);
-
- /* Check status from the lookup */
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Put the resulting object onto the current object stack */
-
- status = acpi_ds_obj_stack_push(obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (obj_desc, walk_state));
- } else {
- /* Check for null name case */
-
- if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
- !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- /*
- * If the name is null, this means that this is an
- * optional result parameter that was not specified
- * in the original ASL. Create a Zero Constant for a
- * placeholder. (Store to a constant is a Noop.)
- */
- opcode = AML_ZERO_OP; /* Has no arguments! */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Null namepath: Arg=%p\n", arg));
- } else {
- opcode = arg->common.aml_opcode;
- }
-
- /* Get the object type of the argument */
-
- op_info = acpi_ps_get_opcode_info(opcode);
- if (op_info->object_type == ACPI_TYPE_INVALID) {
- return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
- }
-
- if ((op_info->flags & AML_HAS_RETVAL)
- || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Argument previously created, already stacked\n"));
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (walk_state->
- operands[walk_state->num_operands -
- 1], walk_state));
-
- /*
- * Use value that was already previously returned
- * by the evaluation of this argument
- */
- status = acpi_ds_result_pop(&obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- /*
- * Only error is underflow, and this indicates
- * a missing or null operand!
- */
- ACPI_EXCEPTION((AE_INFO, status,
- "Missing or null operand"));
- return_ACPI_STATUS(status);
- }
- } else {
- /* Create an ACPI_INTERNAL_OBJECT for the argument */
-
- obj_desc =
- acpi_ut_create_internal_object(op_info->
- object_type);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the new object */
-
- status =
- acpi_ds_init_object_from_op(walk_state, arg, opcode,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(status);
- }
- }
-
- /* Put the operand object on the object stack */
-
- status = acpi_ds_obj_stack_push(obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (obj_desc, walk_state));
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_operands
- *
- * PARAMETERS: walk_state - Current state
- * first_arg - First argument of a parser argument tree
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an operator's arguments from a parse tree format to
- * namespace objects and place those argument object on the object
- * stack in preparation for evaluation by the interpreter.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *first_arg)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *arg;
- union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS];
- u32 arg_count = 0;
- u32 index = walk_state->num_operands;
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg);
-
- /* Get all arguments in the list */
-
- arg = first_arg;
- while (arg) {
- if (index >= ACPI_OBJ_NUM_OPERANDS) {
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- arguments[index] = arg;
- walk_state->operands[index] = NULL;
-
- /* Move on to next argument, if any */
-
- arg = arg->common.next;
- arg_count++;
- index++;
- }
-
- index--;
-
- /* It is the appropriate order to get objects from the Result stack */
-
- for (i = 0; i < arg_count; i++) {
- arg = arguments[index];
-
- /* Force the filling of the operand stack in inverse order */
-
- walk_state->operand_index = (u8) index;
-
- status = acpi_ds_create_operand(walk_state, arg, index);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- index--;
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Arg #%d (%p) done, Arg1=%p\n", index, arg,
- first_arg));
- }
-
- return_ACPI_STATUS(status);
-
- cleanup:
- /*
- * We must undo everything done above; meaning that we must
- * pop everything off of the operand stack and delete those
- * objects
- */
- acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state);
-
- ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index));
- return_ACPI_STATUS(status);
-}
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_evaluate_name_path
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk,
- * the opcode of current operation should be
- * AML_INT_NAMEPATH_OP
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent
- * interpreter object, convert it to value, if needed, duplicate
- * it, if needed, and push it onto the current result stack.
- *
- ****************************************************************************/
-
-acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *op = walk_state->op;
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *new_obj_desc;
- u8 type;
-
- ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state);
-
- if (!op->common.parent) {
-
- /* This happens after certain exception processing */
-
- goto exit;
- }
-
- if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) {
-
- /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */
-
- goto exit;
- }
-
- status = acpi_ds_create_operand(walk_state, op, 0);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (op->common.flags & ACPI_PARSEOP_TARGET) {
- new_obj_desc = *operand;
- goto push_result;
- }
-
- type = ACPI_GET_OBJECT_TYPE(*operand);
-
- status = acpi_ex_resolve_to_value(operand, walk_state);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (type == ACPI_TYPE_INTEGER) {
-
- /* It was incremented by acpi_ex_resolve_to_value */
-
- acpi_ut_remove_reference(*operand);
-
- status =
- acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
- } else {
- /*
- * The object either was anew created or is
- * a Namespace node - don't decrement it.
- */
- new_obj_desc = *operand;
- }
-
- /* Cleanup for name-path operand */
-
- status = acpi_ds_obj_stack_pop(1, walk_state);
- if (ACPI_FAILURE(status)) {
- walk_state->result_obj = new_obj_desc;
- goto exit;
- }
-
- push_result:
-
- walk_state->result_obj = new_obj_desc;
-
- status = acpi_ds_result_push(walk_state->result_obj, walk_state);
- if (ACPI_SUCCESS(status)) {
-
- /* Force to take it from stack */
-
- op->common.flags |= ACPI_PARSEOP_IN_STACK;
- }
-
- exit:
-
- return_ACPI_STATUS(status);
-}