WebSVN – Kolibri OS – Path Comparison – / – /drivers/devman/acpica/dispatcher/ Rev 2215 and /drivers/devman/acpica/dispatcher/ Rev 2216

Regard whitespace Rev 2215 → Rev 2216

 /drivers/devman/acpica/dispatcher/dsargs.c
 ,0 → 1,502
+/******************************************************************************
+ *
+ * Module Name: dsargs - Support for execution of dynamic arguments for static
+ *                       objects (regions, fields, buffer fields, etc.)
+ *
+ *****************************************************************************/
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+#define __DSARGS_C__
+#include "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
+AcpiDsExecuteArguments (
+    ACPI_NAMESPACE_NODE     *Node,
+    ACPI_NAMESPACE_NODE     *ScopeNode,
+    UINT32                  AmlLength,
+    UINT8                   *AmlStart);
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsExecuteArguments
+ *
+ * PARAMETERS:  Node                - Object NS node
+ *              ScopeNode           - Parent NS node
+ *              AmlLength           - Length of executable AML
+ *              AmlStart            - Pointer to the AML
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Late (deferred) execution of region or field arguments
+ *
+ ******************************************************************************/
+static ACPI_STATUS
+AcpiDsExecuteArguments (
+    ACPI_NAMESPACE_NODE     *Node,
+    ACPI_NAMESPACE_NODE     *ScopeNode,
+    UINT32                  AmlLength,
+    UINT8                   *AmlStart)
+{
+    ACPI_STATUS             Status;
+    ACPI_PARSE_OBJECT       *Op;
+    ACPI_WALK_STATE         *WalkState;
+    ACPI_FUNCTION_TRACE (DsExecuteArguments);
+    /* Allocate a new parser op to be the root of the parsed tree */
+    Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
+    if (!Op)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+    /* Save the Node for use in AcpiPsParseAml */
+    Op->Common.Node = ScopeNode;
+    /* Create and initialize a new parser state */
+    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
+    if (!WalkState)
+    {
+        Status = AE_NO_MEMORY;
+        goto Cleanup;
+    }
+    Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
+                    AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiDsDeleteWalkState (WalkState);
+        goto Cleanup;
+    }
+    /* Mark this parse as a deferred opcode */
+    WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
+    WalkState->DeferredNode = Node;
+    /* Pass1: Parse the entire declaration */
+    Status = AcpiPsParseAml (WalkState);
+    if (ACPI_FAILURE (Status))
+    {
+        goto Cleanup;
+    }
+    /* Get and init the Op created above */
+    Op->Common.Node = Node;
+    AcpiPsDeleteParseTree (Op);
+    /* Evaluate the deferred arguments */
+    Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
+    if (!Op)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+    Op->Common.Node = ScopeNode;
+    /* Create and initialize a new parser state */
+    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
+    if (!WalkState)
+    {
+        Status = AE_NO_MEMORY;
+        goto Cleanup;
+    }
+    /* Execute the opcode and arguments */
+    Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
+                    AmlLength, NULL, ACPI_IMODE_EXECUTE);
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiDsDeleteWalkState (WalkState);
+        goto Cleanup;
+    }
+    /* Mark this execution as a deferred opcode */
+    WalkState->DeferredNode = Node;
+    Status = AcpiPsParseAml (WalkState);
+Cleanup:
+    AcpiPsDeleteParseTree (Op);
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsGetBufferFieldArguments
+ *
+ * PARAMETERS:  ObjDesc         - A valid BufferField object
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Get BufferField Buffer and Index. This implements the late
+ *              evaluation of these field attributes.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsGetBufferFieldArguments (
+    ACPI_OPERAND_OBJECT     *ObjDesc)
+{
+    ACPI_OPERAND_OBJECT     *ExtraDesc;
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
+    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    /* Get the AML pointer (method object) and BufferField node */
+    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
+    Node = ObjDesc->BufferField.Node;
+    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD,
+        Node, NULL));
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
+        AcpiUtGetNodeName (Node)));
+    /* Execute the AML code for the TermArg arguments */
+    Status = AcpiDsExecuteArguments (Node, Node->Parent,
+                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsGetBankFieldArguments
+ *
+ * PARAMETERS:  ObjDesc         - A valid BankField object
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Get BankField BankValue. This implements the late
+ *              evaluation of these field attributes.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsGetBankFieldArguments (
+    ACPI_OPERAND_OBJECT     *ObjDesc)
+{
+    ACPI_OPERAND_OBJECT     *ExtraDesc;
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
+    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    /* Get the AML pointer (method object) and BankField node */
+    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
+    Node = ObjDesc->BankField.Node;
+    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD,
+        Node, NULL));
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
+        AcpiUtGetNodeName (Node)));
+    /* Execute the AML code for the TermArg arguments */
+    Status = AcpiDsExecuteArguments (Node, Node->Parent,
+                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsGetBufferArguments
+ *
+ * PARAMETERS:  ObjDesc         - A valid Buffer object
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Get Buffer length and initializer byte list. This implements
+ *              the late evaluation of these attributes.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsGetBufferArguments (
+    ACPI_OPERAND_OBJECT     *ObjDesc)
+{
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
+    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    /* Get the Buffer node */
+    Node = ObjDesc->Buffer.Node;
+    if (!Node)
+    {
+        ACPI_ERROR ((AE_INFO,
+            "No pointer back to namespace node in buffer object %p", ObjDesc));
+        return_ACPI_STATUS (AE_AML_INTERNAL);
+    }
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
+    /* Execute the AML code for the TermArg arguments */
+    Status = AcpiDsExecuteArguments (Node, Node,
+                ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsGetPackageArguments
+ *
+ * PARAMETERS:  ObjDesc         - A valid Package object
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Get Package length and initializer byte list. This implements
+ *              the late evaluation of these attributes.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsGetPackageArguments (
+    ACPI_OPERAND_OBJECT     *ObjDesc)
+{
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
+    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    /* Get the Package node */
+    Node = ObjDesc->Package.Node;
+    if (!Node)
+    {
+        ACPI_ERROR ((AE_INFO,
+            "No pointer back to namespace node in package %p", ObjDesc));
+        return_ACPI_STATUS (AE_AML_INTERNAL);
+    }
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
+    /* Execute the AML code for the TermArg arguments */
+    Status = AcpiDsExecuteArguments (Node, Node,
+                ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsGetRegionArguments
+ *
+ * PARAMETERS:  ObjDesc         - A valid region object
+ *
+ * RETURN:      Status.
+ *
+ * DESCRIPTION: Get region address and length. This implements the late
+ *              evaluation of these region attributes.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsGetRegionArguments (
+    ACPI_OPERAND_OBJECT     *ObjDesc)
+{
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_OPERAND_OBJECT     *ExtraDesc;
+    ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
+    if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
+    if (!ExtraDesc)
+    {
+        return_ACPI_STATUS (AE_NOT_EXIST);
+    }
+    /* Get the Region node */
+    Node = ObjDesc->Region.Node;
+    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
+        AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
+    /* Execute the argument AML */
+    Status = AcpiDsExecuteArguments (Node, Node->Parent,
+                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
+    return_ACPI_STATUS (Status);
+}

 /drivers/devman/acpica/dispatcher/dscontrol.c
 ,0 → 1,496
+/******************************************************************************
+ *
+ * Module Name: dscontrol - Support for execution control opcodes -
+ *                          if/else/while/return
+ *
+ *****************************************************************************/
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+#define __DSCONTROL_C__
+#include "acpi.h"
+#include "accommon.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#define _COMPONENT          ACPI_DISPATCHER
+        ACPI_MODULE_NAME    ("dscontrol")
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsExecBeginControlOp
+ *
+ * PARAMETERS:  WalkList        - The list that owns the walk stack
+ *              Op              - The control Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handles all control ops encountered during control method
+ *              execution.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsExecBeginControlOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_GENERIC_STATE      *ControlState;
+    ACPI_FUNCTION_NAME (DsExecBeginControlOp);
+    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n",
+        Op, Op->Common.AmlOpcode, WalkState));
+    switch (Op->Common.AmlOpcode)
+    {
+    case AML_WHILE_OP:
+        /*
+         * If this is an additional iteration of a while loop, continue.
+         * There is no need to allocate a new control state.
+         */
+        if (WalkState->ControlState)
+        {
+            if (WalkState->ControlState->Control.AmlPredicateStart ==
+                (WalkState->ParserState.Aml - 1))
+            {
+                /* Reset the state to start-of-loop */
+                WalkState->ControlState->Common.State =
+                    ACPI_CONTROL_CONDITIONAL_EXECUTING;
+                break;
+            }
+        }
+        /*lint -fallthrough */
+    case AML_IF_OP:
+        /*
+         * IF/WHILE: Create a new control state to manage these
+         * constructs. We need to manage these as a stack, in order
+         * to handle nesting.
+         */
+        ControlState = AcpiUtCreateControlState ();
+        if (!ControlState)
+        {
+            Status = AE_NO_MEMORY;
+            break;
+        }
+        /*
+         * Save a pointer to the predicate for multiple executions
+         * of a loop
+         */
+        ControlState->Control.AmlPredicateStart = WalkState->ParserState.Aml - 1;
+        ControlState->Control.PackageEnd = WalkState->ParserState.PkgEnd;
+        ControlState->Control.Opcode = Op->Common.AmlOpcode;
+        /* Push the control state on this walk's control stack */
+        AcpiUtPushGenericState (&WalkState->ControlState, ControlState);
+        break;
+    case AML_ELSE_OP:
+        /* Predicate is in the state object */
+        /* If predicate is true, the IF was executed, ignore ELSE part */
+        if (WalkState->LastPredicate)
+        {
+            Status = AE_CTRL_TRUE;
+        }
+        break;
+    case AML_RETURN_OP:
+        break;
+    default:
+        break;
+    }
+    return (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsExecEndControlOp
+ *
+ * PARAMETERS:  WalkList        - The list that owns the walk stack
+ *              Op              - The control Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Handles all control ops encountered during control method
+ *              execution.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsExecEndControlOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_GENERIC_STATE      *ControlState;
+    ACPI_FUNCTION_NAME (DsExecEndControlOp);
+    switch (Op->Common.AmlOpcode)
+    {
+    case AML_IF_OP:
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", Op));
+        /*
+         * Save the result of the predicate in case there is an
+         * ELSE to come
+         */
+        WalkState->LastPredicate =
+            (BOOLEAN) WalkState->ControlState->Common.Value;
+        /*
+         * Pop the control state that was created at the start
+         * of the IF and free it
+         */
+        ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
+        AcpiUtDeleteGenericState (ControlState);
+        break;
+    case AML_ELSE_OP:
+        break;
+    case AML_WHILE_OP:
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", Op));
+        ControlState = WalkState->ControlState;
+        if (ControlState->Common.Value)
+        {
+            /* Predicate was true, the body of the loop was just executed */
+            /*
+             * This loop counter mechanism allows the interpreter to escape
+             * possibly infinite loops. This can occur in poorly written AML
+             * when the hardware does not respond within a while loop and the
+             * loop does not implement a timeout.
+             */
+            ControlState->Control.LoopCount++;
+            if (ControlState->Control.LoopCount > ACPI_MAX_LOOP_ITERATIONS)
+            {
+                Status = AE_AML_INFINITE_LOOP;
+                break;
+            }
+            /*
+             * Go back and evaluate the predicate and maybe execute the loop
+             * another time
+             */
+            Status = AE_CTRL_PENDING;
+            WalkState->AmlLastWhile = ControlState->Control.AmlPredicateStart;
+            break;
+        }
+        /* Predicate was false, terminate this while loop */
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+            "[WHILE_OP] termination! Op=%p\n",Op));
+        /* Pop this control state and free it */
+        ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
+        AcpiUtDeleteGenericState (ControlState);
+        break;
+    case AML_RETURN_OP:
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+            "[RETURN_OP] Op=%p Arg=%p\n",Op, Op->Common.Value.Arg));
+        /*
+         * One optional operand -- the return value
+         * It can be either an immediate operand or a result that
+         * has been bubbled up the tree
+         */
+        if (Op->Common.Value.Arg)
+        {
+            /* Since we have a real Return(), delete any implicit return */
+            AcpiDsClearImplicitReturn (WalkState);
+            /* Return statement has an immediate operand */
+            Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+            /*
+             * If value being returned is a Reference (such as
+             * an arg or local), resolve it now because it may
+             * cease to exist at the end of the method.
+             */
+            Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState);
+            if (ACPI_FAILURE (Status))
+            {
+                return (Status);
+            }
+            /*
+             * Get the return value and save as the last result
+             * value.  This is the only place where WalkState->ReturnDesc
+             * is set to anything other than zero!
+             */
+            WalkState->ReturnDesc = WalkState->Operands[0];
+        }
+        else if (WalkState->ResultCount)
+        {
+            /* Since we have a real Return(), delete any implicit return */
+            AcpiDsClearImplicitReturn (WalkState);
+            /*
+             * The return value has come from a previous calculation.
+             *
+             * If value being returned is a Reference (such as
+             * an arg or local), resolve it now because it may
+             * cease to exist at the end of the method.
+             *
+             * Allow references created by the Index operator to return
+             * unchanged.
+             */
+            if ((ACPI_GET_DESCRIPTOR_TYPE (WalkState->Results->Results.ObjDesc[0]) == ACPI_DESC_TYPE_OPERAND) &&
+                ((WalkState->Results->Results.ObjDesc [0])->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
+                ((WalkState->Results->Results.ObjDesc [0])->Reference.Class != ACPI_REFCLASS_INDEX))
+            {
+                Status = AcpiExResolveToValue (&WalkState->Results->Results.ObjDesc [0], WalkState);
+                if (ACPI_FAILURE (Status))
+                {
+                    return (Status);
+                }
+            }
+            WalkState->ReturnDesc = WalkState->Results->Results.ObjDesc [0];
+        }
+        else
+        {
+            /* No return operand */
+            if (WalkState->NumOperands)
+            {
+                AcpiUtRemoveReference (WalkState->Operands [0]);
+            }
+            WalkState->Operands [0]     = NULL;
+            WalkState->NumOperands      = 0;
+            WalkState->ReturnDesc       = NULL;
+        }
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+            "Completed RETURN_OP State=%p, RetVal=%p\n",
+            WalkState, WalkState->ReturnDesc));
+        /* End the control method execution right now */
+        Status = AE_CTRL_TERMINATE;
+        break;
+    case AML_NOOP_OP:
+        /* Just do nothing! */
+        break;
+    case AML_BREAK_POINT_OP:
+        /*
+         * Set the single-step flag. This will cause the debugger (if present)
+         * to break to the console within the AML debugger at the start of the
+         * next AML instruction.
+         */
+        ACPI_DEBUGGER_EXEC (
+            AcpiGbl_CmSingleStep = TRUE);
+        ACPI_DEBUGGER_EXEC (
+            AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n"));
+        /* Call to the OSL in case OS wants a piece of the action */
+        Status = AcpiOsSignal (ACPI_SIGNAL_BREAKPOINT,
+                    "Executed AML Breakpoint opcode");
+        break;
+    case AML_BREAK_OP:
+    case AML_CONTINUE_OP: /* ACPI 2.0 */
+        /* Pop and delete control states until we find a while */
+        while (WalkState->ControlState &&
+                (WalkState->ControlState->Control.Opcode != AML_WHILE_OP))
+        {
+            ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
+            AcpiUtDeleteGenericState (ControlState);
+        }
+        /* No while found? */
+        if (!WalkState->ControlState)
+        {
+            return (AE_AML_NO_WHILE);
+        }
+        /* Was: WalkState->AmlLastWhile = WalkState->ControlState->Control.AmlPredicateStart; */
+        WalkState->AmlLastWhile = WalkState->ControlState->Control.PackageEnd;
+        /* Return status depending on opcode */
+        if (Op->Common.AmlOpcode == AML_BREAK_OP)
+        {
+            Status = AE_CTRL_BREAK;
+        }
+        else
+        {
+            Status = AE_CTRL_CONTINUE;
+        }
+        break;
+    default:
+        ACPI_ERROR ((AE_INFO, "Unknown control opcode=0x%X Op=%p",
+            Op->Common.AmlOpcode, Op));
+        Status = AE_AML_BAD_OPCODE;
+        break;
+    }
+    return (Status);
+}

 /drivers/devman/acpica/dispatcher/dsfield.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

 /drivers/devman/acpica/dispatcher/dsinit.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

 /drivers/devman/acpica/dispatcher/dsmethod.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License
 ,7 → 117,6
 #include "acpi.h"
 #include "accommon.h"
-#include "amlcode.h"
 #include "acdispat.h"
 #include "acinterp.h"
 #include "acnamesp.h"
 ,7 → 290,7
     /*
      * If this method is serialized, we need to acquire the method mutex.
      */
-    if (ObjDesc->Method.MethodFlags & AML_METHOD_SERIALIZED)
+    if (ObjDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED)
     {
         /*
          * Create a mutex for the method if it is defined to be Serialized
 ,9 → 516,9
     /* Invoke an internal method if necessary */
-    if (ObjDesc->Method.MethodFlags & AML_METHOD_INTERNAL_ONLY)
+    if (ObjDesc->Method.InfoFlags & ACPI_METHOD_INTERNAL_ONLY)
     {
-        Status = ObjDesc->Method.Extra.Implementation (NextWalkState);
+        Status = ObjDesc->Method.Dispatch.Implementation (NextWalkState);
         if (Status == AE_OK)
         {
             Status = AE_CTRL_TERMINATE;
 ,11 → 693,14
         /*
          * Delete any namespace objects created anywhere within the
-         * namespace by the execution of this method. Unless this method
-         * is a module-level executable code method, in which case we
-         * want make the objects permanent.
+         * namespace by the execution of this method. Unless:
+         * 1) This method is a module-level executable code method, in which
+         *    case we want make the objects permanent.
+         * 2) There are other threads executing the method, in which case we
+         *    will wait until the last thread has completed.
          */
-        if (!(MethodDesc->Method.Flags & AOPOBJ_MODULE_LEVEL))
+        if (!(MethodDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL) &&
+             (MethodDesc->Method.ThreadCount == 1))
         {
             /* Delete any direct children of (created by) this method */
 ,10 → 709,14
             /*
              * Delete any objects that were created by this method
              * elsewhere in the namespace (if any were created).
+             * Use of the ACPI_METHOD_MODIFIED_NAMESPACE optimizes the
+             * deletion such that we don't have to perform an entire
+             * namespace walk for every control method execution.
              */
-            if (MethodDesc->Method.Flags & AOPOBJ_MODIFIED_NAMESPACE)
+            if (MethodDesc->Method.InfoFlags & ACPI_METHOD_MODIFIED_NAMESPACE)
             {
                 AcpiNsDeleteNamespaceByOwner (MethodDesc->Method.OwnerId);
+                MethodDesc->Method.InfoFlags &= ~ACPI_METHOD_MODIFIED_NAMESPACE;
             }
         }
     }
 ,20 → 754,39
          * Serialized if it appears that the method is incorrectly written and
          * does not support multiple thread execution. The best example of this
          * is if such a method creates namespace objects and blocks. A second
-         * thread will fail with an AE_ALREADY_EXISTS exception
+         * thread will fail with an AE_ALREADY_EXISTS exception.
          *
          * This code is here because we must wait until the last thread exits
-         * before creating the synchronization semaphore.
+         * before marking the method as serialized.
          */
-        if ((MethodDesc->Method.MethodFlags & AML_METHOD_SERIALIZED) &&
-            (!MethodDesc->Method.Mutex))
+        if (MethodDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED_PENDING)
         {
-            (void) AcpiDsCreateMethodMutex (MethodDesc);
+            if (WalkState)
+            {
+                ACPI_INFO ((AE_INFO,
+                    "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error",
+                    WalkState->MethodNode->Name.Ascii));
         }
+            /*
+             * Method tried to create an object twice and was marked as
+             * "pending serialized". The probable cause is that the method
+             * cannot handle reentrancy.
+             *
+             * The method was created as NotSerialized, but it tried to create
+             * a named object and then blocked, causing the second thread
+             * entrance to begin and then fail. Workaround this problem by
+             * marking the method permanently as Serialized when the last
+             * thread exits here.
+             */
+            MethodDesc->Method.InfoFlags &= ~ACPI_METHOD_SERIALIZED_PENDING;
+            MethodDesc->Method.InfoFlags |= ACPI_METHOD_SERIALIZED;
+            MethodDesc->Method.SyncLevel = 0;
+        }
         /* No more threads, we can free the OwnerId */
-        if (!(MethodDesc->Method.Flags & AOPOBJ_MODULE_LEVEL))
+        if (!(MethodDesc->Method.InfoFlags & ACPI_METHOD_MODULE_LEVEL))
         {
             AcpiUtReleaseOwnerId (&MethodDesc->Method.OwnerId);
         }

 /drivers/devman/acpica/dispatcher/dsmthdat.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

 /drivers/devman/acpica/dispatcher/dsobject.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License
 ,6 → 159,7
 {
     ACPI_OPERAND_OBJECT     *ObjDesc;
     ACPI_STATUS             Status;
+    ACPI_OBJECT_TYPE        Type;
     ACPI_FUNCTION_TRACE (DsBuildInternalObject);
 ,8 → 242,21
                 return_ACPI_STATUS (Status);
             }
-            switch (Op->Common.Node->Type)
+            /*
+             * Special handling for Alias objects. We need to setup the type
+             * and the Op->Common.Node to point to the Alias target. Note,
+             * Alias has at most one level of indirection internally.
+             */
+            Type = Op->Common.Node->Type;
+            if (Type == ACPI_TYPE_LOCAL_ALIAS)
             {
+                Type = ObjDesc->Common.Type;
+                Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE,
+                    Op->Common.Node->Object);
+            }
+            switch (Type)
+            {
             /*
              * For these types, we need the actual node, not the subobject.
              * However, the subobject did not get an extra reference count above.

 /drivers/devman/acpica/dispatcher/dsopcode.c
 ,7 → 1,6
 /******************************************************************************
  *
- * Module Name: dsopcode - Dispatcher Op Region support and handling of
- *                         "control" opcodes
+ * Module Name: dsopcode - Dispatcher suport for regions and fields
  *
  *****************************************************************************/
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License
 ,13 → 131,6
 /* Local prototypes */
 static ACPI_STATUS
-AcpiDsExecuteArguments (
-    ACPI_NAMESPACE_NODE     *Node,
-    ACPI_NAMESPACE_NODE     *ScopeNode,
-    UINT32                  AmlLength,
-    UINT8                   *AmlStart);
-static ACPI_STATUS
 AcpiDsInitBufferField (
     UINT16                  AmlOpcode,
     ACPI_OPERAND_OBJECT     *ObjDesc,
 ,369 → 142,6
 /*******************************************************************************
  *
- * FUNCTION:    AcpiDsExecuteArguments
- *
- * PARAMETERS:  Node                - Object NS node
- *              ScopeNode           - Parent NS node
- *              AmlLength           - Length of executable AML
- *              AmlStart            - Pointer to the AML
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Late (deferred) execution of region or field arguments
- *
- ******************************************************************************/
-static ACPI_STATUS
-AcpiDsExecuteArguments (
-    ACPI_NAMESPACE_NODE     *Node,
-    ACPI_NAMESPACE_NODE     *ScopeNode,
-    UINT32                  AmlLength,
-    UINT8                   *AmlStart)
-{
-    ACPI_STATUS             Status;
-    ACPI_PARSE_OBJECT       *Op;
-    ACPI_WALK_STATE         *WalkState;
-    ACPI_FUNCTION_TRACE (DsExecuteArguments);
-    /*
-     * Allocate a new parser op to be the root of the parsed tree
-     */
-    Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
-    if (!Op)
-    {
-        return_ACPI_STATUS (AE_NO_MEMORY);
-    }
-    /* Save the Node for use in AcpiPsParseAml */
-    Op->Common.Node = ScopeNode;
-    /* Create and initialize a new parser state */
-    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
-    if (!WalkState)
-    {
-        Status = AE_NO_MEMORY;
-        goto Cleanup;
-    }
-    Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
-                    AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
-    if (ACPI_FAILURE (Status))
-    {
-        AcpiDsDeleteWalkState (WalkState);
-        goto Cleanup;
-    }
-    /* Mark this parse as a deferred opcode */
-    WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
-    WalkState->DeferredNode = Node;
-    /* Pass1: Parse the entire declaration */
-    Status = AcpiPsParseAml (WalkState);
-    if (ACPI_FAILURE (Status))
-    {
-        goto Cleanup;
-    }
-    /* Get and init the Op created above */
-    Op->Common.Node = Node;
-    AcpiPsDeleteParseTree (Op);
-    /* Evaluate the deferred arguments */
-    Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
-    if (!Op)
-    {
-        return_ACPI_STATUS (AE_NO_MEMORY);
-    }
-    Op->Common.Node = ScopeNode;
-    /* Create and initialize a new parser state */
-    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
-    if (!WalkState)
-    {
-        Status = AE_NO_MEMORY;
-        goto Cleanup;
-    }
-    /* Execute the opcode and arguments */
-    Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
-                    AmlLength, NULL, ACPI_IMODE_EXECUTE);
-    if (ACPI_FAILURE (Status))
-    {
-        AcpiDsDeleteWalkState (WalkState);
-        goto Cleanup;
-    }
-    /* Mark this execution as a deferred opcode */
-    WalkState->DeferredNode = Node;
-    Status = AcpiPsParseAml (WalkState);
-Cleanup:
-    AcpiPsDeleteParseTree (Op);
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsGetBufferFieldArguments
- *
- * PARAMETERS:  ObjDesc         - A valid BufferField object
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Get BufferField Buffer and Index.  This implements the late
- *              evaluation of these field attributes.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsGetBufferFieldArguments (
-    ACPI_OPERAND_OBJECT     *ObjDesc)
-{
-    ACPI_OPERAND_OBJECT     *ExtraDesc;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
-    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    /* Get the AML pointer (method object) and BufferField node */
-    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
-    Node = ObjDesc->BufferField.Node;
-    ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD, Node, NULL));
-    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
-        AcpiUtGetNodeName (Node)));
-    /* Execute the AML code for the TermArg arguments */
-    Status = AcpiDsExecuteArguments (Node, Node->Parent,
-                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsGetBankFieldArguments
- *
- * PARAMETERS:  ObjDesc         - A valid BankField object
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Get BankField BankValue.  This implements the late
- *              evaluation of these field attributes.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsGetBankFieldArguments (
-    ACPI_OPERAND_OBJECT     *ObjDesc)
-{
-    ACPI_OPERAND_OBJECT     *ExtraDesc;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
-    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    /* Get the AML pointer (method object) and BankField node */
-    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
-    Node = ObjDesc->BankField.Node;
-    ACPI_DEBUG_EXEC(AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL));
-    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
-        AcpiUtGetNodeName (Node)));
-    /* Execute the AML code for the TermArg arguments */
-    Status = AcpiDsExecuteArguments (Node, Node->Parent,
-                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsGetBufferArguments
- *
- * PARAMETERS:  ObjDesc         - A valid Buffer object
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Get Buffer length and initializer byte list.  This implements
- *              the late evaluation of these attributes.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsGetBufferArguments (
-    ACPI_OPERAND_OBJECT     *ObjDesc)
-{
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
-    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    /* Get the Buffer node */
-    Node = ObjDesc->Buffer.Node;
-    if (!Node)
-    {
-        ACPI_ERROR ((AE_INFO,
-            "No pointer back to namespace node in buffer object %p", ObjDesc));
-        return_ACPI_STATUS (AE_AML_INTERNAL);
-    }
-    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
-    /* Execute the AML code for the TermArg arguments */
-    Status = AcpiDsExecuteArguments (Node, Node,
-                ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsGetPackageArguments
- *
- * PARAMETERS:  ObjDesc         - A valid Package object
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Get Package length and initializer byte list.  This implements
- *              the late evaluation of these attributes.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsGetPackageArguments (
-    ACPI_OPERAND_OBJECT     *ObjDesc)
-{
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
-    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    /* Get the Package node */
-    Node = ObjDesc->Package.Node;
-    if (!Node)
-    {
-        ACPI_ERROR ((AE_INFO,
-            "No pointer back to namespace node in package %p", ObjDesc));
-        return_ACPI_STATUS (AE_AML_INTERNAL);
-    }
-    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
-    /* Execute the AML code for the TermArg arguments */
-    Status = AcpiDsExecuteArguments (Node, Node,
-                ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
-    return_ACPI_STATUS (Status);
-}
-/*****************************************************************************
- *
- * FUNCTION:    AcpiDsGetRegionArguments
- *
- * PARAMETERS:  ObjDesc         - A valid region object
- *
- * RETURN:      Status.
- *
- * DESCRIPTION: Get region address and length.  This implements the late
- *              evaluation of these region attributes.
- *
- ****************************************************************************/
-ACPI_STATUS
-AcpiDsGetRegionArguments (
-    ACPI_OPERAND_OBJECT     *ObjDesc)
-{
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_OPERAND_OBJECT     *ExtraDesc;
-    ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
-    if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
-    if (!ExtraDesc)
-    {
-        return_ACPI_STATUS (AE_NOT_EXIST);
-    }
-    /* Get the Region node */
-    Node = ObjDesc->Region.Node;
-    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));
-    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
-        AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
-    /* Execute the argument AML */
-    Status = AcpiDsExecuteArguments (Node, Node->Parent,
-                ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
  * FUNCTION:    AcpiDsInitializeRegion
  *
  * PARAMETERS:  ObjHandle       - Region namespace node
 ,8 → 571,9
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Get region address and length
- *              Called from AcpiDsExecEndOp during DataTableRegion parse tree walk
+ * DESCRIPTION: Get region address and length.
+ *              Called from AcpiDsExecEndOp during DataTableRegion parse
+ *              tree walk.
  *
  ******************************************************************************/
 ,371 → 879,3
     return_ACPI_STATUS (Status);
 }
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsExecBeginControlOp
- *
- * PARAMETERS:  WalkList        - The list that owns the walk stack
- *              Op              - The control Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Handles all control ops encountered during control method
- *              execution.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsExecBeginControlOp (
-    ACPI_WALK_STATE         *WalkState,
-    ACPI_PARSE_OBJECT       *Op)
-{
-    ACPI_STATUS             Status = AE_OK;
-    ACPI_GENERIC_STATE      *ControlState;
-    ACPI_FUNCTION_NAME (DsExecBeginControlOp);
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", Op,
-        Op->Common.AmlOpcode, WalkState));
-    switch (Op->Common.AmlOpcode)
-    {
-    case AML_WHILE_OP:
-        /*
-         * If this is an additional iteration of a while loop, continue.
-         * There is no need to allocate a new control state.
-         */
-        if (WalkState->ControlState)
-        {
-            if (WalkState->ControlState->Control.AmlPredicateStart ==
-                (WalkState->ParserState.Aml - 1))
-            {
-                /* Reset the state to start-of-loop */
-                WalkState->ControlState->Common.State = ACPI_CONTROL_CONDITIONAL_EXECUTING;
-                break;
-            }
-        }
-        /*lint -fallthrough */
-    case AML_IF_OP:
-        /*
-         * IF/WHILE: Create a new control state to manage these
-         * constructs. We need to manage these as a stack, in order
-         * to handle nesting.
-         */
-        ControlState = AcpiUtCreateControlState ();
-        if (!ControlState)
-        {
-            Status = AE_NO_MEMORY;
-            break;
-        }
-        /*
-         * Save a pointer to the predicate for multiple executions
-         * of a loop
-         */
-        ControlState->Control.AmlPredicateStart = WalkState->ParserState.Aml - 1;
-        ControlState->Control.PackageEnd = WalkState->ParserState.PkgEnd;
-        ControlState->Control.Opcode = Op->Common.AmlOpcode;
-        /* Push the control state on this walk's control stack */
-        AcpiUtPushGenericState (&WalkState->ControlState, ControlState);
-        break;
-    case AML_ELSE_OP:
-        /* Predicate is in the state object */
-        /* If predicate is true, the IF was executed, ignore ELSE part */
-        if (WalkState->LastPredicate)
-        {
-            Status = AE_CTRL_TRUE;
-        }
-        break;
-    case AML_RETURN_OP:
-        break;
-    default:
-        break;
-    }
-    return (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsExecEndControlOp
- *
- * PARAMETERS:  WalkList        - The list that owns the walk stack
- *              Op              - The control Op
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Handles all control ops encountered during control method
- *              execution.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsExecEndControlOp (
-    ACPI_WALK_STATE         *WalkState,
-    ACPI_PARSE_OBJECT       *Op)
-{
-    ACPI_STATUS             Status = AE_OK;
-    ACPI_GENERIC_STATE      *ControlState;
-    ACPI_FUNCTION_NAME (DsExecEndControlOp);
-    switch (Op->Common.AmlOpcode)
-    {
-    case AML_IF_OP:
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", Op));
-        /*
-         * Save the result of the predicate in case there is an
-         * ELSE to come
-         */
-        WalkState->LastPredicate =
-            (BOOLEAN) WalkState->ControlState->Common.Value;
-        /*
-         * Pop the control state that was created at the start
-         * of the IF and free it
-         */
-        ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
-        AcpiUtDeleteGenericState (ControlState);
-        break;
-    case AML_ELSE_OP:
-        break;
-    case AML_WHILE_OP:
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", Op));
-        ControlState = WalkState->ControlState;
-        if (ControlState->Common.Value)
-        {
-            /* Predicate was true, the body of the loop was just executed */
-            /*
-             * This loop counter mechanism allows the interpreter to escape
-             * possibly infinite loops. This can occur in poorly written AML
-             * when the hardware does not respond within a while loop and the
-             * loop does not implement a timeout.
-             */
-            ControlState->Control.LoopCount++;
-            if (ControlState->Control.LoopCount > ACPI_MAX_LOOP_ITERATIONS)
-            {
-                Status = AE_AML_INFINITE_LOOP;
-                break;
-            }
-            /*
-             * Go back and evaluate the predicate and maybe execute the loop
-             * another time
-             */
-            Status = AE_CTRL_PENDING;
-            WalkState->AmlLastWhile = ControlState->Control.AmlPredicateStart;
-            break;
-        }
-        /* Predicate was false, terminate this while loop */
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "[WHILE_OP] termination! Op=%p\n",Op));
-        /* Pop this control state and free it */
-        ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
-        AcpiUtDeleteGenericState (ControlState);
-        break;
-    case AML_RETURN_OP:
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "[RETURN_OP] Op=%p Arg=%p\n",Op, Op->Common.Value.Arg));
-        /*
-         * One optional operand -- the return value
-         * It can be either an immediate operand or a result that
-         * has been bubbled up the tree
-         */
-        if (Op->Common.Value.Arg)
-        {
-            /* Since we have a real Return(), delete any implicit return */
-            AcpiDsClearImplicitReturn (WalkState);
-            /* Return statement has an immediate operand */
-            Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
-            if (ACPI_FAILURE (Status))
-            {
-                return (Status);
-            }
-            /*
-             * If value being returned is a Reference (such as
-             * an arg or local), resolve it now because it may
-             * cease to exist at the end of the method.
-             */
-            Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState);
-            if (ACPI_FAILURE (Status))
-            {
-                return (Status);
-            }
-            /*
-             * Get the return value and save as the last result
-             * value.  This is the only place where WalkState->ReturnDesc
-             * is set to anything other than zero!
-             */
-            WalkState->ReturnDesc = WalkState->Operands[0];
-        }
-        else if (WalkState->ResultCount)
-        {
-            /* Since we have a real Return(), delete any implicit return */
-            AcpiDsClearImplicitReturn (WalkState);
-            /*
-             * The return value has come from a previous calculation.
-             *
-             * If value being returned is a Reference (such as
-             * an arg or local), resolve it now because it may
-             * cease to exist at the end of the method.
-             *
-             * Allow references created by the Index operator to return unchanged.
-             */
-            if ((ACPI_GET_DESCRIPTOR_TYPE (WalkState->Results->Results.ObjDesc[0]) == ACPI_DESC_TYPE_OPERAND) &&
-                ((WalkState->Results->Results.ObjDesc [0])->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) &&
-                ((WalkState->Results->Results.ObjDesc [0])->Reference.Class != ACPI_REFCLASS_INDEX))
-            {
-                Status = AcpiExResolveToValue (&WalkState->Results->Results.ObjDesc [0], WalkState);
-                if (ACPI_FAILURE (Status))
-                {
-                    return (Status);
-                }
-            }
-            WalkState->ReturnDesc = WalkState->Results->Results.ObjDesc [0];
-        }
-        else
-        {
-            /* No return operand */
-            if (WalkState->NumOperands)
-            {
-                AcpiUtRemoveReference (WalkState->Operands [0]);
-            }
-            WalkState->Operands [0]     = NULL;
-            WalkState->NumOperands      = 0;
-            WalkState->ReturnDesc       = NULL;
-        }
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "Completed RETURN_OP State=%p, RetVal=%p\n",
-            WalkState, WalkState->ReturnDesc));
-        /* End the control method execution right now */
-        Status = AE_CTRL_TERMINATE;
-        break;
-    case AML_NOOP_OP:
-        /* Just do nothing! */
-        break;
-    case AML_BREAK_POINT_OP:
-        /*
-         * Set the single-step flag. This will cause the debugger (if present)
-         * to break to the console within the AML debugger at the start of the
-         * next AML instruction.
-         */
-        ACPI_DEBUGGER_EXEC (
-            AcpiGbl_CmSingleStep = TRUE);
-        ACPI_DEBUGGER_EXEC (
-            AcpiOsPrintf ("**break** Executed AML BreakPoint opcode\n"));
-        /* Call to the OSL in case OS wants a piece of the action */
-        Status = AcpiOsSignal (ACPI_SIGNAL_BREAKPOINT,
-                    "Executed AML Breakpoint opcode");
-        break;
-    case AML_BREAK_OP:
-    case AML_CONTINUE_OP: /* ACPI 2.0 */
-        /* Pop and delete control states until we find a while */
-        while (WalkState->ControlState &&
-                (WalkState->ControlState->Control.Opcode != AML_WHILE_OP))
-        {
-            ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
-            AcpiUtDeleteGenericState (ControlState);
-        }
-        /* No while found? */
-        if (!WalkState->ControlState)
-        {
-            return (AE_AML_NO_WHILE);
-        }
-        /* Was: WalkState->AmlLastWhile = WalkState->ControlState->Control.AmlPredicateStart; */
-        WalkState->AmlLastWhile = WalkState->ControlState->Control.PackageEnd;
-        /* Return status depending on opcode */
-        if (Op->Common.AmlOpcode == AML_BREAK_OP)
-        {
-            Status = AE_CTRL_BREAK;
-        }
-        else
-        {
-            Status = AE_CTRL_CONTINUE;
-        }
-        break;
-    default:
-        ACPI_ERROR ((AE_INFO, "Unknown control opcode=0x%X Op=%p",
-            Op->Common.AmlOpcode, Op));
-        Status = AE_AML_BAD_OPCODE;
-        break;
-    }
-    return (Status);
-}

 /drivers/devman/acpica/dispatcher/dsutils.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

 /drivers/devman/acpica/dispatcher/dswexec.c
 ,7 → 9,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License
 ,10 → 400,26
              * we must enter this object into the namespace.  The created
              * object is temporary and will be deleted upon completion of
              * the execution of this method.
+             *
+             * Note 10/2010: Except for the Scope() op. This opcode does
+             * not actually create a new object, it refers to an existing
+             * object. However, for Scope(), we want to indeed open a
+             * new scope.
              */
+            if (Op->Common.AmlOpcode != AML_SCOPE_OP)
+            {
             Status = AcpiDsLoad2BeginOp (WalkState, NULL);
         }
+            else
+            {
+                Status = AcpiDsScopeStackPush (Op->Named.Node,
+                            Op->Named.Node->Type, WalkState);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+            }
+        }
         break;

 /drivers/devman/acpica/dispatcher/dswload.c
 ,6 → 1,6
 /******************************************************************************
  *
- * Module Name: dswload - Dispatcher namespace load callbacks
+ * Module Name: dswload - Dispatcher first pass namespace load callbacks
  *
  *****************************************************************************/
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License
 ,7 → 122,6
 #include "acdispat.h"
 #include "acinterp.h"
 #include "acnamesp.h"
-#include "acevents.h"
 #ifdef ACPI_ASL_COMPILER
 #include "acdisasm.h"
 ,7 → 538,7
         else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP)
         {
             Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
-                        REGION_DATA_TABLE, WalkState);
+                        ACPI_ADR_SPACE_DATA_TABLE, WalkState);
             if (ACPI_FAILURE (Status))
             {
                 return_ACPI_STATUS (Status);
 ,695 → 621,3
     return_ACPI_STATUS (Status);
 }
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsLoad2BeginOp
- *
- * PARAMETERS:  WalkState       - Current state of the parse tree walk
- *              OutOp           - Wher to return op if a new one is created
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Descending callback used during the loading of ACPI tables.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsLoad2BeginOp (
-    ACPI_WALK_STATE         *WalkState,
-    ACPI_PARSE_OBJECT       **OutOp)
-{
-    ACPI_PARSE_OBJECT       *Op;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_OBJECT_TYPE        ObjectType;
-    char                    *BufferPtr;
-    UINT32                  Flags;
-    ACPI_FUNCTION_TRACE (DsLoad2BeginOp);
-    Op = WalkState->Op;
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
-    if (Op)
-    {
-        if ((WalkState->ControlState) &&
-            (WalkState->ControlState->Common.State ==
-                ACPI_CONTROL_CONDITIONAL_EXECUTING))
-        {
-            /* We are executing a while loop outside of a method */
-            Status = AcpiDsExecBeginOp (WalkState, OutOp);
-            return_ACPI_STATUS (Status);
-        }
-        /* We only care about Namespace opcodes here */
-        if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE)   &&
-              (WalkState->Opcode != AML_INT_NAMEPATH_OP)) ||
-            (!(WalkState->OpInfo->Flags & AML_NAMED)))
-        {
-            return_ACPI_STATUS (AE_OK);
-        }
-        /* Get the name we are going to enter or lookup in the namespace */
-        if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
-        {
-            /* For Namepath op, get the path string */
-            BufferPtr = Op->Common.Value.String;
-            if (!BufferPtr)
-            {
-                /* No name, just exit */
-                return_ACPI_STATUS (AE_OK);
-            }
-        }
-        else
-        {
-            /* Get name from the op */
-            BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name);
-        }
-    }
-    else
-    {
-        /* Get the namestring from the raw AML */
-        BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState);
-    }
-    /* Map the opcode into an internal object type */
-    ObjectType = WalkState->OpInfo->ObjectType;
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-        "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType));
-    switch (WalkState->Opcode)
-    {
-    case AML_FIELD_OP:
-    case AML_BANK_FIELD_OP:
-    case AML_INDEX_FIELD_OP:
-        Node = NULL;
-        Status = AE_OK;
-        break;
-    case AML_INT_NAMEPATH_OP:
-        /*
-         * The NamePath is an object reference to an existing object.
-         * Don't enter the name into the namespace, but look it up
-         * for use later.
-         */
-        Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
-                        ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
-                        WalkState, &(Node));
-        break;
-    case AML_SCOPE_OP:
-        /* Special case for Scope(\) -> refers to the Root node */
-        if (Op && (Op->Named.Node == AcpiGbl_RootNode))
-        {
-            Node = Op->Named.Node;
-            Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
-            if (ACPI_FAILURE (Status))
-            {
-                return_ACPI_STATUS (Status);
-            }
-        }
-        else
-        {
-            /*
-             * The Path is an object reference to an existing object.
-             * Don't enter the name into the namespace, but look it up
-             * for use later.
-             */
-            Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
-                        ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
-                        WalkState, &(Node));
-            if (ACPI_FAILURE (Status))
-            {
-#ifdef ACPI_ASL_COMPILER
-                if (Status == AE_NOT_FOUND)
-                {
-                    Status = AE_OK;
-                }
-                else
-                {
-                    ACPI_ERROR_NAMESPACE (BufferPtr, Status);
-                }
-#else
-                ACPI_ERROR_NAMESPACE (BufferPtr, Status);
-#endif
-                return_ACPI_STATUS (Status);
-            }
-        }
-        /*
-         * We must check to make sure that the target is
-         * one of the opcodes that actually opens a scope
-         */
-        switch (Node->Type)
-        {
-        case ACPI_TYPE_ANY:
-        case ACPI_TYPE_LOCAL_SCOPE:         /* Scope */
-        case ACPI_TYPE_DEVICE:
-        case ACPI_TYPE_POWER:
-        case ACPI_TYPE_PROCESSOR:
-        case ACPI_TYPE_THERMAL:
-            /* These are acceptable types */
-            break;
-        case ACPI_TYPE_INTEGER:
-        case ACPI_TYPE_STRING:
-        case ACPI_TYPE_BUFFER:
-            /*
-             * These types we will allow, but we will change the type.
-             * This enables some existing code of the form:
-             *
-             *  Name (DEB, 0)
-             *  Scope (DEB) { ... }
-             */
-            ACPI_WARNING ((AE_INFO,
-                "Type override - [%4.4s] had invalid type (%s) "
-                "for Scope operator, changed to type ANY\n",
-                AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
-            Node->Type = ACPI_TYPE_ANY;
-            WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
-            break;
-        default:
-            /* All other types are an error */
-            ACPI_ERROR ((AE_INFO,
-                "Invalid type (%s) for target of "
-                "Scope operator [%4.4s] (Cannot override)",
-                AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
-            return (AE_AML_OPERAND_TYPE);
-        }
-        break;
-    default:
-        /* All other opcodes */
-        if (Op && Op->Common.Node)
-        {
-            /* This op/node was previously entered into the namespace */
-            Node = Op->Common.Node;
-            if (AcpiNsOpensScope (ObjectType))
-            {
-                Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
-                if (ACPI_FAILURE (Status))
-                {
-                    return_ACPI_STATUS (Status);
-                }
-            }
-            return_ACPI_STATUS (AE_OK);
-        }
-        /*
-         * Enter the named type into the internal namespace. We enter the name
-         * as we go downward in the parse tree. Any necessary subobjects that
-         * involve arguments to the opcode must be created as we go back up the
-         * parse tree later.
-         *
-         * Note: Name may already exist if we are executing a deferred opcode.
-         */
-        if (WalkState->DeferredNode)
-        {
-            /* This name is already in the namespace, get the node */
-            Node = WalkState->DeferredNode;
-            Status = AE_OK;
-            break;
-        }
-        Flags = ACPI_NS_NO_UPSEARCH;
-        if (WalkState->PassNumber == ACPI_IMODE_EXECUTE)
-        {
-            /* Execution mode, node cannot already exist, node is temporary */
-            Flags |= ACPI_NS_ERROR_IF_FOUND;
-            if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
-            {
-                Flags |= ACPI_NS_TEMPORARY;
-            }
-        }
-        /* Add new entry or lookup existing entry */
-        Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
-                    ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node);
-        if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY))
-        {
-            ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-                "***New Node [%4.4s] %p is temporary\n",
-                AcpiUtGetNodeName (Node), Node));
-        }
-        break;
-    }
-    if (ACPI_FAILURE (Status))
-    {
-        ACPI_ERROR_NAMESPACE (BufferPtr, Status);
-        return_ACPI_STATUS (Status);
-    }
-    if (!Op)
-    {
-        /* Create a new op */
-        Op = AcpiPsAllocOp (WalkState->Opcode);
-        if (!Op)
-        {
-            return_ACPI_STATUS (AE_NO_MEMORY);
-        }
-        /* Initialize the new op */
-        if (Node)
-        {
-            Op->Named.Name = Node->Name.Integer;
-        }
-        *OutOp = Op;
-    }
-    /*
-     * Put the Node in the "op" object that the parser uses, so we
-     * can get it again quickly when this scope is closed
-     */
-    Op->Common.Node = Node;
-    return_ACPI_STATUS (Status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    AcpiDsLoad2EndOp
- *
- * PARAMETERS:  WalkState       - Current state of the parse tree walk
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Ascending callback used during the loading of the namespace,
- *              both control methods and everything else.
- *
- ******************************************************************************/
-ACPI_STATUS
-AcpiDsLoad2EndOp (
-    ACPI_WALK_STATE         *WalkState)
-{
-    ACPI_PARSE_OBJECT       *Op;
-    ACPI_STATUS             Status = AE_OK;
-    ACPI_OBJECT_TYPE        ObjectType;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_PARSE_OBJECT       *Arg;
-    ACPI_NAMESPACE_NODE     *NewNode;
-#ifndef ACPI_NO_METHOD_EXECUTION
-    UINT32                  i;
-    UINT8                   RegionSpace;
-#endif
-    ACPI_FUNCTION_TRACE (DsLoad2EndOp);
-    Op = WalkState->Op;
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
-            WalkState->OpInfo->Name, Op, WalkState));
-    /* Check if opcode had an associated namespace object */
-    if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-    if (Op->Common.AmlOpcode == AML_SCOPE_OP)
-    {
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "Ending scope Op=%p State=%p\n", Op, WalkState));
-    }
-    ObjectType = WalkState->OpInfo->ObjectType;
-    /*
-     * Get the Node/name from the earlier lookup
-     * (It was saved in the *op structure)
-     */
-    Node = Op->Common.Node;
-    /*
-     * Put the Node on the object stack (Contains the ACPI Name of
-     * this object)
-     */
-    WalkState->Operands[0] = (void *) Node;
-    WalkState->NumOperands = 1;
-    /* Pop the scope stack */
-    if (AcpiNsOpensScope (ObjectType) &&
-       (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
-    {
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
-            AcpiUtGetTypeName (ObjectType), Op));
-        Status = AcpiDsScopeStackPop (WalkState);
-        if (ACPI_FAILURE (Status))
-        {
-            goto Cleanup;
-        }
-    }
-    /*
-     * Named operations are as follows:
-     *
-     * AML_ALIAS
-     * AML_BANKFIELD
-     * AML_CREATEBITFIELD
-     * AML_CREATEBYTEFIELD
-     * AML_CREATEDWORDFIELD
-     * AML_CREATEFIELD
-     * AML_CREATEQWORDFIELD
-     * AML_CREATEWORDFIELD
-     * AML_DATA_REGION
-     * AML_DEVICE
-     * AML_EVENT
-     * AML_FIELD
-     * AML_INDEXFIELD
-     * AML_METHOD
-     * AML_METHODCALL
-     * AML_MUTEX
-     * AML_NAME
-     * AML_NAMEDFIELD
-     * AML_OPREGION
-     * AML_POWERRES
-     * AML_PROCESSOR
-     * AML_SCOPE
-     * AML_THERMALZONE
-     */
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-        "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
-        AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
-    /* Decode the opcode */
-    Arg = Op->Common.Value.Arg;
-    switch (WalkState->OpInfo->Type)
-    {
-#ifndef ACPI_NO_METHOD_EXECUTION
-    case AML_TYPE_CREATE_FIELD:
-        /*
-         * Create the field object, but the field buffer and index must
-         * be evaluated later during the execution phase
-         */
-        Status = AcpiDsCreateBufferField (Op, WalkState);
-        break;
-     case AML_TYPE_NAMED_FIELD:
-        /*
-         * If we are executing a method, initialize the field
-         */
-        if (WalkState->MethodNode)
-        {
-            Status = AcpiDsInitFieldObjects (Op, WalkState);
-        }
-        switch (Op->Common.AmlOpcode)
-        {
-        case AML_INDEX_FIELD_OP:
-            Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node,
-                        WalkState);
-            break;
-        case AML_BANK_FIELD_OP:
-            Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
-            break;
-        case AML_FIELD_OP:
-            Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
-            break;
-        default:
-            /* All NAMED_FIELD opcodes must be handled above */
-            break;
-        }
-        break;
-     case AML_TYPE_NAMED_SIMPLE:
-        Status = AcpiDsCreateOperands (WalkState, Arg);
-        if (ACPI_FAILURE (Status))
-        {
-            goto Cleanup;
-        }
-        switch (Op->Common.AmlOpcode)
-        {
-        case AML_PROCESSOR_OP:
-            Status = AcpiExCreateProcessor (WalkState);
-            break;
-        case AML_POWER_RES_OP:
-            Status = AcpiExCreatePowerResource (WalkState);
-            break;
-        case AML_MUTEX_OP:
-            Status = AcpiExCreateMutex (WalkState);
-            break;
-        case AML_EVENT_OP:
-            Status = AcpiExCreateEvent (WalkState);
-            break;
-        case AML_ALIAS_OP:
-            Status = AcpiExCreateAlias (WalkState);
-            break;
-        default:
-            /* Unknown opcode */
-            Status = AE_OK;
-            goto Cleanup;
-        }
-        /* Delete operands */
-        for (i = 1; i < WalkState->NumOperands; i++)
-        {
-            AcpiUtRemoveReference (WalkState->Operands[i]);
-            WalkState->Operands[i] = NULL;
-        }
-        break;
-#endif /* ACPI_NO_METHOD_EXECUTION */
-    case AML_TYPE_NAMED_COMPLEX:
-        switch (Op->Common.AmlOpcode)
-        {
-#ifndef ACPI_NO_METHOD_EXECUTION
-        case AML_REGION_OP:
-        case AML_DATA_REGION_OP:
-            if (Op->Common.AmlOpcode == AML_REGION_OP)
-            {
-                RegionSpace = (ACPI_ADR_SPACE_TYPE)
-                      ((Op->Common.Value.Arg)->Common.Value.Integer);
-            }
-            else
-            {
-                RegionSpace = REGION_DATA_TABLE;
-            }
-            /*
-             * The OpRegion is not fully parsed at this time. The only valid
-             * argument is the SpaceId. (We must save the address of the
-             * AML of the address and length operands)
-             *
-             * If we have a valid region, initialize it. The namespace is
-             * unlocked at this point.
-             *
-             * Need to unlock interpreter if it is locked (if we are running
-             * a control method), in order to allow _REG methods to be run
-             * during AcpiEvInitializeRegion.
-             */
-            if (WalkState->MethodNode)
-            {
-                /*
-                 * Executing a method: initialize the region and unlock
-                 * the interpreter
-                 */
-                Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
-                            RegionSpace, WalkState);
-                if (ACPI_FAILURE (Status))
-                {
-                    return (Status);
-                }
-                AcpiExExitInterpreter ();
-            }
-            Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node),
-                        FALSE);
-            if (WalkState->MethodNode)
-            {
-                AcpiExEnterInterpreter ();
-            }
-            if (ACPI_FAILURE (Status))
-            {
-                /*
-                 *  If AE_NOT_EXIST is returned, it is not fatal
-                 *  because many regions get created before a handler
-                 *  is installed for said region.
-                 */
-                if (AE_NOT_EXIST == Status)
-                {
-                    Status = AE_OK;
-                }
-            }
-            break;
-        case AML_NAME_OP:
-            Status = AcpiDsCreateNode (WalkState, Node, Op);
-            break;
-        case AML_METHOD_OP:
-            /*
-             * MethodOp PkgLength NameString MethodFlags TermList
-             *
-             * Note: We must create the method node/object pair as soon as we
-             * see the method declaration. This allows later pass1 parsing
-             * of invocations of the method (need to know the number of
-             * arguments.)
-             */
-            ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-                "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
-                WalkState, Op, Op->Named.Node));
-            if (!AcpiNsGetAttachedObject (Op->Named.Node))
-            {
-                WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
-                WalkState->NumOperands = 1;
-                Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
-                if (ACPI_SUCCESS (Status))
-                {
-                    Status = AcpiExCreateMethod (Op->Named.Data,
-                                        Op->Named.Length, WalkState);
-                }
-                WalkState->Operands[0] = NULL;
-                WalkState->NumOperands = 0;
-                if (ACPI_FAILURE (Status))
-                {
-                    return_ACPI_STATUS (Status);
-                }
-            }
-            break;
-#endif /* ACPI_NO_METHOD_EXECUTION */
-        default:
-            /* All NAMED_COMPLEX opcodes must be handled above */
-            break;
-        }
-        break;
-    case AML_CLASS_INTERNAL:
-        /* case AML_INT_NAMEPATH_OP: */
-        break;
-    case AML_CLASS_METHOD_CALL:
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
-            WalkState, Op, Node));
-        /*
-         * Lookup the method name and save the Node
-         */
-        Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
-                        ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
-                        ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
-                        WalkState, &(NewNode));
-        if (ACPI_SUCCESS (Status))
-        {
-            /*
-             * Make sure that what we found is indeed a method
-             * We didn't search for a method on purpose, to see if the name
-             * would resolve
-             */
-            if (NewNode->Type != ACPI_TYPE_METHOD)
-            {
-                Status = AE_AML_OPERAND_TYPE;
-            }
-            /* We could put the returned object (Node) on the object stack for
-             * later, but for now, we will put it in the "op" object that the
-             * parser uses, so we can get it again at the end of this scope
-             */
-            Op->Common.Node = NewNode;
-        }
-        else
-        {
-            ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
-        }
-        break;
-    default:
-        break;
-    }
-Cleanup:
-    /* Remove the Node pushed at the very beginning */
-    WalkState->Operands[0] = NULL;
-    WalkState->NumOperands = 0;
-    return_ACPI_STATUS (Status);
-}

 /drivers/devman/acpica/dispatcher/dswload2.c
 ,0 → 1,819
+/******************************************************************************
+ *
+ * Module Name: dswload2 - Dispatcher second pass namespace load callbacks
+ *
+ *****************************************************************************/
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+#define __DSWLOAD2_C__
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#define _COMPONENT          ACPI_DISPATCHER
+        ACPI_MODULE_NAME    ("dswload2")
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsLoad2BeginOp
+ *
+ * PARAMETERS:  WalkState       - Current state of the parse tree walk
+ *              OutOp           - Wher to return op if a new one is created
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Descending callback used during the loading of ACPI tables.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsLoad2BeginOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       **OutOp)
+{
+    ACPI_PARSE_OBJECT       *Op;
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+    ACPI_OBJECT_TYPE        ObjectType;
+    char                    *BufferPtr;
+    UINT32                  Flags;
+    ACPI_FUNCTION_TRACE (DsLoad2BeginOp);
+    Op = WalkState->Op;
+    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
+    if (Op)
+    {
+        if ((WalkState->ControlState) &&
+            (WalkState->ControlState->Common.State ==
+                ACPI_CONTROL_CONDITIONAL_EXECUTING))
+        {
+            /* We are executing a while loop outside of a method */
+            Status = AcpiDsExecBeginOp (WalkState, OutOp);
+            return_ACPI_STATUS (Status);
+        }
+        /* We only care about Namespace opcodes here */
+        if ((!(WalkState->OpInfo->Flags & AML_NSOPCODE)   &&
+              (WalkState->Opcode != AML_INT_NAMEPATH_OP)) ||
+            (!(WalkState->OpInfo->Flags & AML_NAMED)))
+        {
+            return_ACPI_STATUS (AE_OK);
+        }
+        /* Get the name we are going to enter or lookup in the namespace */
+        if (WalkState->Opcode == AML_INT_NAMEPATH_OP)
+        {
+            /* For Namepath op, get the path string */
+            BufferPtr = Op->Common.Value.String;
+            if (!BufferPtr)
+            {
+                /* No name, just exit */
+                return_ACPI_STATUS (AE_OK);
+            }
+        }
+        else
+        {
+            /* Get name from the op */
+            BufferPtr = ACPI_CAST_PTR (char, &Op->Named.Name);
+        }
+    }
+    else
+    {
+        /* Get the namestring from the raw AML */
+        BufferPtr = AcpiPsGetNextNamestring (&WalkState->ParserState);
+    }
+    /* Map the opcode into an internal object type */
+    ObjectType = WalkState->OpInfo->ObjectType;
+    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+        "State=%p Op=%p Type=%X\n", WalkState, Op, ObjectType));
+    switch (WalkState->Opcode)
+    {
+    case AML_FIELD_OP:
+    case AML_BANK_FIELD_OP:
+    case AML_INDEX_FIELD_OP:
+        Node = NULL;
+        Status = AE_OK;
+        break;
+    case AML_INT_NAMEPATH_OP:
+        /*
+         * The NamePath is an object reference to an existing object.
+         * Don't enter the name into the namespace, but look it up
+         * for use later.
+         */
+        Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
+                        ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+                        WalkState, &(Node));
+        break;
+    case AML_SCOPE_OP:
+        /* Special case for Scope(\) -> refers to the Root node */
+        if (Op && (Op->Named.Node == AcpiGbl_RootNode))
+        {
+            Node = Op->Named.Node;
+            Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
+            if (ACPI_FAILURE (Status))
+            {
+                return_ACPI_STATUS (Status);
+            }
+        }
+        else
+        {
+            /*
+             * The Path is an object reference to an existing object.
+             * Don't enter the name into the namespace, but look it up
+             * for use later.
+             */
+            Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
+                        ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+                        WalkState, &(Node));
+            if (ACPI_FAILURE (Status))
+            {
+#ifdef ACPI_ASL_COMPILER
+                if (Status == AE_NOT_FOUND)
+                {
+                    Status = AE_OK;
+                }
+                else
+                {
+                    ACPI_ERROR_NAMESPACE (BufferPtr, Status);
+                }
+#else
+                ACPI_ERROR_NAMESPACE (BufferPtr, Status);
+#endif
+                return_ACPI_STATUS (Status);
+            }
+        }
+        /*
+         * We must check to make sure that the target is
+         * one of the opcodes that actually opens a scope
+         */
+        switch (Node->Type)
+        {
+        case ACPI_TYPE_ANY:
+        case ACPI_TYPE_LOCAL_SCOPE:         /* Scope */
+        case ACPI_TYPE_DEVICE:
+        case ACPI_TYPE_POWER:
+        case ACPI_TYPE_PROCESSOR:
+        case ACPI_TYPE_THERMAL:
+            /* These are acceptable types */
+            break;
+        case ACPI_TYPE_INTEGER:
+        case ACPI_TYPE_STRING:
+        case ACPI_TYPE_BUFFER:
+            /*
+             * These types we will allow, but we will change the type.
+             * This enables some existing code of the form:
+             *
+             *  Name (DEB, 0)
+             *  Scope (DEB) { ... }
+             */
+            ACPI_WARNING ((AE_INFO,
+                "Type override - [%4.4s] had invalid type (%s) "
+                "for Scope operator, changed to type ANY\n",
+                AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
+            Node->Type = ACPI_TYPE_ANY;
+            WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
+            break;
+        default:
+            /* All other types are an error */
+            ACPI_ERROR ((AE_INFO,
+                "Invalid type (%s) for target of "
+                "Scope operator [%4.4s] (Cannot override)",
+                AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
+            return (AE_AML_OPERAND_TYPE);
+        }
+        break;
+    default:
+        /* All other opcodes */
+        if (Op && Op->Common.Node)
+        {
+            /* This op/node was previously entered into the namespace */
+            Node = Op->Common.Node;
+            if (AcpiNsOpensScope (ObjectType))
+            {
+                Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+            }
+            return_ACPI_STATUS (AE_OK);
+        }
+        /*
+         * Enter the named type into the internal namespace. We enter the name
+         * as we go downward in the parse tree. Any necessary subobjects that
+         * involve arguments to the opcode must be created as we go back up the
+         * parse tree later.
+         *
+         * Note: Name may already exist if we are executing a deferred opcode.
+         */
+        if (WalkState->DeferredNode)
+        {
+            /* This name is already in the namespace, get the node */
+            Node = WalkState->DeferredNode;
+            Status = AE_OK;
+            break;
+        }
+        Flags = ACPI_NS_NO_UPSEARCH;
+        if (WalkState->PassNumber == ACPI_IMODE_EXECUTE)
+        {
+            /* Execution mode, node cannot already exist, node is temporary */
+            Flags |= ACPI_NS_ERROR_IF_FOUND;
+            if (!(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
+            {
+                Flags |= ACPI_NS_TEMPORARY;
+            }
+        }
+        /* Add new entry or lookup existing entry */
+        Status = AcpiNsLookup (WalkState->ScopeInfo, BufferPtr, ObjectType,
+                    ACPI_IMODE_LOAD_PASS2, Flags, WalkState, &Node);
+        if (ACPI_SUCCESS (Status) && (Flags & ACPI_NS_TEMPORARY))
+        {
+            ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+                "***New Node [%4.4s] %p is temporary\n",
+                AcpiUtGetNodeName (Node), Node));
+        }
+        break;
+    }
+    if (ACPI_FAILURE (Status))
+    {
+        ACPI_ERROR_NAMESPACE (BufferPtr, Status);
+        return_ACPI_STATUS (Status);
+    }
+    if (!Op)
+    {
+        /* Create a new op */
+        Op = AcpiPsAllocOp (WalkState->Opcode);
+        if (!Op)
+        {
+            return_ACPI_STATUS (AE_NO_MEMORY);
+        }
+        /* Initialize the new op */
+        if (Node)
+        {
+            Op->Named.Name = Node->Name.Integer;
+        }
+        *OutOp = Op;
+    }
+    /*
+     * Put the Node in the "op" object that the parser uses, so we
+     * can get it again quickly when this scope is closed
+     */
+    Op->Common.Node = Node;
+    return_ACPI_STATUS (Status);
+}
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsLoad2EndOp
+ *
+ * PARAMETERS:  WalkState       - Current state of the parse tree walk
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Ascending callback used during the loading of the namespace,
+ *              both control methods and everything else.
+ *
+ ******************************************************************************/
+ACPI_STATUS
+AcpiDsLoad2EndOp (
+    ACPI_WALK_STATE         *WalkState)
+{
+    ACPI_PARSE_OBJECT       *Op;
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_OBJECT_TYPE        ObjectType;
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_PARSE_OBJECT       *Arg;
+    ACPI_NAMESPACE_NODE     *NewNode;
+#ifndef ACPI_NO_METHOD_EXECUTION
+    UINT32                  i;
+    UINT8                   RegionSpace;
+#endif
+    ACPI_FUNCTION_TRACE (DsLoad2EndOp);
+    Op = WalkState->Op;
+    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
+            WalkState->OpInfo->Name, Op, WalkState));
+    /* Check if opcode had an associated namespace object */
+    if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+    if (Op->Common.AmlOpcode == AML_SCOPE_OP)
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+            "Ending scope Op=%p State=%p\n", Op, WalkState));
+    }
+    ObjectType = WalkState->OpInfo->ObjectType;
+    /*
+     * Get the Node/name from the earlier lookup
+     * (It was saved in the *op structure)
+     */
+    Node = Op->Common.Node;
+    /*
+     * Put the Node on the object stack (Contains the ACPI Name of
+     * this object)
+     */
+    WalkState->Operands[0] = (void *) Node;
+    WalkState->NumOperands = 1;
+    /* Pop the scope stack */
+    if (AcpiNsOpensScope (ObjectType) &&
+       (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
+            AcpiUtGetTypeName (ObjectType), Op));
+        Status = AcpiDsScopeStackPop (WalkState);
+        if (ACPI_FAILURE (Status))
+        {
+            goto Cleanup;
+        }
+    }
+    /*
+     * Named operations are as follows:
+     *
+     * AML_ALIAS
+     * AML_BANKFIELD
+     * AML_CREATEBITFIELD
+     * AML_CREATEBYTEFIELD
+     * AML_CREATEDWORDFIELD
+     * AML_CREATEFIELD
+     * AML_CREATEQWORDFIELD
+     * AML_CREATEWORDFIELD
+     * AML_DATA_REGION
+     * AML_DEVICE
+     * AML_EVENT
+     * AML_FIELD
+     * AML_INDEXFIELD
+     * AML_METHOD
+     * AML_METHODCALL
+     * AML_MUTEX
+     * AML_NAME
+     * AML_NAMEDFIELD
+     * AML_OPREGION
+     * AML_POWERRES
+     * AML_PROCESSOR
+     * AML_SCOPE
+     * AML_THERMALZONE
+     */
+    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+        "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
+        AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
+    /* Decode the opcode */
+    Arg = Op->Common.Value.Arg;
+    switch (WalkState->OpInfo->Type)
+    {
+#ifndef ACPI_NO_METHOD_EXECUTION
+    case AML_TYPE_CREATE_FIELD:
+        /*
+         * Create the field object, but the field buffer and index must
+         * be evaluated later during the execution phase
+         */
+        Status = AcpiDsCreateBufferField (Op, WalkState);
+        break;
+     case AML_TYPE_NAMED_FIELD:
+        /*
+         * If we are executing a method, initialize the field
+         */
+        if (WalkState->MethodNode)
+        {
+            Status = AcpiDsInitFieldObjects (Op, WalkState);
+        }
+        switch (Op->Common.AmlOpcode)
+        {
+        case AML_INDEX_FIELD_OP:
+            Status = AcpiDsCreateIndexField (Op, (ACPI_HANDLE) Arg->Common.Node,
+                        WalkState);
+            break;
+        case AML_BANK_FIELD_OP:
+            Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
+            break;
+        case AML_FIELD_OP:
+            Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
+            break;
+        default:
+            /* All NAMED_FIELD opcodes must be handled above */
+            break;
+        }
+        break;
+     case AML_TYPE_NAMED_SIMPLE:
+        Status = AcpiDsCreateOperands (WalkState, Arg);
+        if (ACPI_FAILURE (Status))
+        {
+            goto Cleanup;
+        }
+        switch (Op->Common.AmlOpcode)
+        {
+        case AML_PROCESSOR_OP:
+            Status = AcpiExCreateProcessor (WalkState);
+            break;
+        case AML_POWER_RES_OP:
+            Status = AcpiExCreatePowerResource (WalkState);
+            break;
+        case AML_MUTEX_OP:
+            Status = AcpiExCreateMutex (WalkState);
+            break;
+        case AML_EVENT_OP:
+            Status = AcpiExCreateEvent (WalkState);
+            break;
+        case AML_ALIAS_OP:
+            Status = AcpiExCreateAlias (WalkState);
+            break;
+        default:
+            /* Unknown opcode */
+            Status = AE_OK;
+            goto Cleanup;
+        }
+        /* Delete operands */
+        for (i = 1; i < WalkState->NumOperands; i++)
+        {
+            AcpiUtRemoveReference (WalkState->Operands[i]);
+            WalkState->Operands[i] = NULL;
+        }
+        break;
+#endif /* ACPI_NO_METHOD_EXECUTION */
+    case AML_TYPE_NAMED_COMPLEX:
+        switch (Op->Common.AmlOpcode)
+        {
+#ifndef ACPI_NO_METHOD_EXECUTION
+        case AML_REGION_OP:
+        case AML_DATA_REGION_OP:
+            if (Op->Common.AmlOpcode == AML_REGION_OP)
+            {
+                RegionSpace = (ACPI_ADR_SPACE_TYPE)
+                      ((Op->Common.Value.Arg)->Common.Value.Integer);
+            }
+            else
+            {
+                RegionSpace = ACPI_ADR_SPACE_DATA_TABLE;
+            }
+            /*
+             * The OpRegion is not fully parsed at this time. The only valid
+             * argument is the SpaceId. (We must save the address of the
+             * AML of the address and length operands)
+             *
+             * If we have a valid region, initialize it. The namespace is
+             * unlocked at this point.
+             *
+             * Need to unlock interpreter if it is locked (if we are running
+             * a control method), in order to allow _REG methods to be run
+             * during AcpiEvInitializeRegion.
+             */
+            if (WalkState->MethodNode)
+            {
+                /*
+                 * Executing a method: initialize the region and unlock
+                 * the interpreter
+                 */
+                Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
+                            RegionSpace, WalkState);
+                if (ACPI_FAILURE (Status))
+                {
+                    return (Status);
+                }
+                AcpiExExitInterpreter ();
+            }
+            Status = AcpiEvInitializeRegion (AcpiNsGetAttachedObject (Node),
+                        FALSE);
+            if (WalkState->MethodNode)
+            {
+                AcpiExEnterInterpreter ();
+            }
+            if (ACPI_FAILURE (Status))
+            {
+                /*
+                 *  If AE_NOT_EXIST is returned, it is not fatal
+                 *  because many regions get created before a handler
+                 *  is installed for said region.
+                 */
+                if (AE_NOT_EXIST == Status)
+                {
+                    Status = AE_OK;
+                }
+            }
+            break;
+        case AML_NAME_OP:
+            Status = AcpiDsCreateNode (WalkState, Node, Op);
+            break;
+        case AML_METHOD_OP:
+            /*
+             * MethodOp PkgLength NameString MethodFlags TermList
+             *
+             * Note: We must create the method node/object pair as soon as we
+             * see the method declaration. This allows later pass1 parsing
+             * of invocations of the method (need to know the number of
+             * arguments.)
+             */
+            ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+                "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
+                WalkState, Op, Op->Named.Node));
+            if (!AcpiNsGetAttachedObject (Op->Named.Node))
+            {
+                WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
+                WalkState->NumOperands = 1;
+                Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
+                if (ACPI_SUCCESS (Status))
+                {
+                    Status = AcpiExCreateMethod (Op->Named.Data,
+                                        Op->Named.Length, WalkState);
+                }
+                WalkState->Operands[0] = NULL;
+                WalkState->NumOperands = 0;
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+            }
+            break;
+#endif /* ACPI_NO_METHOD_EXECUTION */
+        default:
+            /* All NAMED_COMPLEX opcodes must be handled above */
+            break;
+        }
+        break;
+    case AML_CLASS_INTERNAL:
+        /* case AML_INT_NAMEPATH_OP: */
+        break;
+    case AML_CLASS_METHOD_CALL:
+        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+            "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
+            WalkState, Op, Node));
+        /*
+         * Lookup the method name and save the Node
+         */
+        Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
+                        ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
+                        ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
+                        WalkState, &(NewNode));
+        if (ACPI_SUCCESS (Status))
+        {
+            /*
+             * Make sure that what we found is indeed a method
+             * We didn't search for a method on purpose, to see if the name
+             * would resolve
+             */
+            if (NewNode->Type != ACPI_TYPE_METHOD)
+            {
+                Status = AE_AML_OPERAND_TYPE;
+            }
+            /* We could put the returned object (Node) on the object stack for
+             * later, but for now, we will put it in the "op" object that the
+             * parser uses, so we can get it again at the end of this scope
+             */
+            Op->Common.Node = NewNode;
+        }
+        else
+        {
+            ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
+        }
+        break;
+    default:
+        break;
+    }
+Cleanup:
+    /* Remove the Node pushed at the very beginning */
+    WalkState->Operands[0] = NULL;
+    WalkState->NumOperands = 0;
+    return_ACPI_STATUS (Status);
+}

 /drivers/devman/acpica/dispatcher/dswscope.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

 /drivers/devman/acpica/dispatcher/dswstate.c
 ,7 → 8,7
  *
  * 1. Copyright Notice
  *
- * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
+ * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
  * All rights reserved.
  *
  * 2. License

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