vendor/acpica/20121220

1 files changed, 24 insertions, 1212 deletions

diff --git a/source/compiler/asllookup.c b/source/compiler/asllookup.c
index f051879b3bfa..1de4dea03a69 100644
--- a/source/compiler/asllookup.c
+++ b/source/compiler/asllookup.c
@@ -1,6 +1,6 @@
 /******************************************************************************
  *
- * Module Name: asllookup- Namespace lookup
+ * Module Name: asllookup- Namespace lookup functions
  *
  *****************************************************************************/
 
@@ -44,7 +44,6 @@
 
 #include "aslcompiler.h"
 #include "aslcompiler.y.h"
-
 #include "acparser.h"
 #include "amlcode.h"
 #include "acnamesp.h"
@@ -57,57 +56,12 @@
 /* Local prototypes */
 
 static ACPI_STATUS
-LsCompareOneNamespaceObject (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue);
-
-static ACPI_STATUS
-LsDoOneNamespaceObject (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue);
-
-static BOOLEAN
-LkObjectExists (
-    char                    *Name);
-
-static void
-LkCheckFieldRange (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  RegionBitLength,
-    UINT32                  FieldBitOffset,
-    UINT32                  FieldBitLength,
-    UINT32                  AccessBitWidth);
-
-static ACPI_STATUS
-LkNamespaceLocateBegin (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  Level,
-    void                    *Context);
-
-static ACPI_STATUS
-LkNamespaceLocateEnd (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  Level,
-    void                    *Context);
-
-static ACPI_STATUS
 LkIsObjectUsed (
     ACPI_HANDLE             ObjHandle,
     UINT32                  Level,
     void                    *Context,
     void                    **ReturnValue);
 
-static ACPI_STATUS
-LsDoOnePathname (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue);
-
 static ACPI_PARSE_OBJECT *
 LkGetNameOp (
     ACPI_PARSE_OBJECT       *Op);
@@ -115,480 +69,28 @@ LkGetNameOp (
 
 /*******************************************************************************
  *
- * FUNCTION:    LsDoOneNamespaceObject
- *
- * PARAMETERS:  ACPI_WALK_CALLBACK
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Dump a namespace object to the namespace output file.
- *              Called during the walk of the namespace to dump all objects.
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-LsDoOneNamespaceObject (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue)
-{
-    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
-    ACPI_OPERAND_OBJECT     *ObjDesc;
-    ACPI_PARSE_OBJECT       *Op;
-
-
-    Gbl_NumNamespaceObjects++;
-
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%5u  [%u]  %*s %4.4s - %s",
-        Gbl_NumNamespaceObjects, Level, (Level * 3), " ",
-        &Node->Name,
-        AcpiUtGetTypeName (Node->Type));
-
-    Op = Node->Op;
-    ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Node->Object);
-
-    if (!Op)
-    {
-        FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n");
-        return (AE_OK);
-    }
-
-
-    if ((ObjDesc) &&
-        (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND))
-    {
-        switch (Node->Type)
-        {
-        case ACPI_TYPE_INTEGER:
-
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "       [Initial Value   0x%8.8X%8.8X]",
-                ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value));
-            break;
-
-
-        case ACPI_TYPE_STRING:
-
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "        [Initial Value   \"%s\"]",
-                ObjDesc->String.Pointer);
-            break;
-
-        default:
-            /* Nothing to do for other types */
-            break;
-        }
-
-    }
-    else
-    {
-        switch (Node->Type)
-        {
-        case ACPI_TYPE_INTEGER:
-
-            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
-            {
-                Op = Op->Asl.Child;
-            }
-            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
-                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
-            {
-                Op = Op->Asl.Next;
-            }
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "       [Initial Value   0x%8.8X%8.8X]",
-                ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
-            break;
-
-
-        case ACPI_TYPE_STRING:
-
-            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
-            {
-                Op = Op->Asl.Child;
-            }
-            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
-                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
-            {
-                Op = Op->Asl.Next;
-            }
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "        [Initial Value   \"%s\"]",
-                Op->Asl.Value.String);
-            break;
-
-
-        case ACPI_TYPE_LOCAL_REGION_FIELD:
-
-            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
-                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
-            {
-                Op = Op->Asl.Child;
-            }
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "   [Offset 0x%04X   Length 0x%04X bits]",
-                Op->Asl.Parent->Asl.ExtraValue, (UINT32) Op->Asl.Value.Integer);
-            break;
-
-
-        case ACPI_TYPE_BUFFER_FIELD:
-
-            switch (Op->Asl.ParseOpcode)
-            {
-            case PARSEOP_CREATEBYTEFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [BYTE  ( 8 bit)]");
-                break;
-
-            case PARSEOP_CREATEDWORDFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [DWORD (32 bit)]");
-                break;
-
-            case PARSEOP_CREATEQWORDFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [QWORD (64 bit)]");
-                break;
-
-            case PARSEOP_CREATEWORDFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [WORD  (16 bit)]");
-                break;
-
-            case PARSEOP_CREATEBITFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [BIT   ( 1 bit)]");
-                break;
-
-            case PARSEOP_CREATEFIELD:
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [Arbitrary Bit Field]");
-                break;
-
-            default:
-                break;
-
-            }
-            break;
-
-
-        case ACPI_TYPE_PACKAGE:
-
-            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
-            {
-                Op = Op->Asl.Child;
-            }
-            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
-                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
-            {
-                Op = Op->Asl.Next;
-            }
-            Op = Op->Asl.Child;
-
-            if ((Op->Asl.ParseOpcode == PARSEOP_BYTECONST) ||
-                (Op->Asl.ParseOpcode == PARSEOP_RAW_DATA))
-            {
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                    "       [Initial Length  0x%.2X elements]",
-                    Op->Asl.Value.Integer);
-            }
-            break;
-
-
-        case ACPI_TYPE_BUFFER:
-
-            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
-            {
-                Op = Op->Asl.Child;
-            }
-            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
-                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
-            {
-                Op = Op->Asl.Next;
-            }
-            Op = Op->Asl.Child;
-
-            if (Op && (Op->Asl.ParseOpcode == PARSEOP_INTEGER))
-            {
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                    "        [Initial Length  0x%.2X bytes]",
-                    Op->Asl.Value.Integer);
-            }
-            break;
-
-
-        case ACPI_TYPE_METHOD:
-
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "        [Code Length     0x%.4X bytes]",
-                Op->Asl.AmlSubtreeLength);
-            break;
-
-
-        case ACPI_TYPE_LOCAL_RESOURCE:
-
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "  [Desc Offset     0x%.4X Bytes]", Node->Value);
-            break;
-
-
-        case ACPI_TYPE_LOCAL_RESOURCE_FIELD:
-
-            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                "   [Field Offset    0x%.4X Bits 0x%.4X Bytes] ",
-                Node->Value, Node->Value / 8);
-
-            if (Node->Flags & ANOBJ_IS_REFERENCED)
-            {
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                    "Referenced");
-            }
-            else
-            {
-                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
-                    "Name not referenced");
-            }
-            break;
-
-
-        default:
-            /* Nothing to do for other types */
-            break;
-        }
-    }
-
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n");
-    return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LsSetupNsList
+ * FUNCTION:    LkFindUnreferencedObjects
  *
- * PARAMETERS:  Handle          - local file handle
+ * PARAMETERS:  None
  *
  * RETURN:      None
  *
- * DESCRIPTION: Set the namespace output file to the input handle
+ * DESCRIPTION: Namespace walk to find objects that are not referenced in any
+ *              way. Must be called after the namespace has been cross
+ *              referenced.
  *
  ******************************************************************************/
 
 void
-LsSetupNsList (
-    void                    *Handle)
-{
-
-    Gbl_NsOutputFlag = TRUE;
-    Gbl_Files[ASL_FILE_NAMESPACE_OUTPUT].Handle = Handle;
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LsDoOnePathname
- *
- * PARAMETERS:  ACPI_WALK_CALLBACK
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Print the full pathname for a namespace node.
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-LsDoOnePathname (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue)
-{
-    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
-    ACPI_STATUS             Status;
-    ACPI_BUFFER             TargetPath;
-
-
-    TargetPath.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
-    Status = AcpiNsHandleToPathname (Node, &TargetPath);
-    if (ACPI_FAILURE (Status))
-    {
-        return (Status);
-    }
-
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%s\n", TargetPath.Pointer);
-    ACPI_FREE (TargetPath.Pointer);
-
-    return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LsDisplayNamespace
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Walk the namespace an display information about each node
- *              in the tree. Information is written to the optional
- *              namespace output file.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-LsDisplayNamespace (
+LkFindUnreferencedObjects (
     void)
 {
-    ACPI_STATUS             Status;
-
-
-    if (!Gbl_NsOutputFlag)
-    {
-        return (AE_OK);
-    }
-
-    Gbl_NumNamespaceObjects = 0;
-
-    /* File header */
-
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Contents of ACPI Namespace\n\n");
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Count  Depth    Name - Type\n\n");
-
-    /* Walk entire namespace from the root */
-
-    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                ACPI_UINT32_MAX, FALSE, LsDoOneNamespaceObject, NULL,
-                NULL, NULL);
-
-    /* Print the full pathname for each namespace node */
-
-    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\nNamespace pathnames\n\n");
-
-    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                ACPI_UINT32_MAX, FALSE, LsDoOnePathname, NULL,
-                NULL, NULL);
-
-    return (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LsCompareOneNamespaceObject
- *
- * PARAMETERS:  ACPI_WALK_CALLBACK
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Compare name of one object.
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-LsCompareOneNamespaceObject (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue)
-{
-    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
-
-
-    /* Simply check the name */
-
-    if (*((UINT32 *) (Context)) == Node->Name.Integer)
-    {
-        /* Abort walk if we found one instance */
-
-        return (AE_CTRL_TRUE);
-    }
-
-    return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LkObjectExists
- *
- * PARAMETERS:  Name            - 4 char ACPI name
- *
- * RETURN:      TRUE if name exists in namespace
- *
- * DESCRIPTION: Walk the namespace to find an object
- *
- ******************************************************************************/
-
-static BOOLEAN
-LkObjectExists (
-    char                    *Name)
-{
-    ACPI_STATUS             Status;
-
 
     /* Walk entire namespace from the supplied root */
 
-    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                ACPI_UINT32_MAX, FALSE, LsCompareOneNamespaceObject, NULL,
-                Name, NULL);
-    if (Status == AE_CTRL_TRUE)
-    {
-        /* At least one instance of the name was found */
-
-        return (TRUE);
-    }
-
-    return (FALSE);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LkGetNameOp
- *
- * PARAMETERS:  Op              - Current Op
- *
- * RETURN:      NameOp associated with the input op
- *
- * DESCRIPTION: Find the name declaration op associated with the operator
- *
- ******************************************************************************/
-
-static ACPI_PARSE_OBJECT *
-LkGetNameOp (
-    ACPI_PARSE_OBJECT       *Op)
-{
-    const ACPI_OPCODE_INFO  *OpInfo;
-    ACPI_PARSE_OBJECT       *NameOp = Op;
-
-
-    OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
-
-
-    /* Get the NamePath from the appropriate place */
-
-    if (OpInfo->Flags & AML_NAMED)
-    {
-        /* For nearly all NAMED operators, the name reference is the first child */
-
-        NameOp = Op->Asl.Child;
-        if (Op->Asl.AmlOpcode == AML_ALIAS_OP)
-        {
-            /*
-             * ALIAS is the only oddball opcode, the name declaration
-             * (alias name) is the second operand
-             */
-            NameOp = Op->Asl.Child->Asl.Next;
-        }
-    }
-    else if (OpInfo->Flags & AML_CREATE)
-    {
-        /* Name must appear as the last parameter */
-
-        NameOp = Op->Asl.Child;
-        while (!(NameOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION))
-        {
-            NameOp = NameOp->Asl.Next;
-        }
-    }
-
-    return (NameOp);
+    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+                ACPI_UINT32_MAX, FALSE, LkIsObjectUsed, NULL,
+                NULL, NULL);
 }
 
 
@@ -660,232 +162,26 @@ LkIsObjectUsed (
 
 /*******************************************************************************
  *
- * FUNCTION:    LkFindUnreferencedObjects
- *
- * PARAMETERS:  None
- *
- * RETURN:      None
- *
- * DESCRIPTION: Namespace walk to find objects that are not referenced in any
- *              way. Must be called after the namespace has been cross
- *              referenced.
- *
- ******************************************************************************/
-
-void
-LkFindUnreferencedObjects (
-    void)
-{
-
-    /* Walk entire namespace from the supplied root */
-
-    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
-                ACPI_UINT32_MAX, FALSE, LkIsObjectUsed, NULL,
-                NULL, NULL);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LkCrossReferenceNamespace
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Perform a cross reference check of the parse tree against the
- *              namespace. Every named referenced within the parse tree
- *              should be get resolved with a namespace lookup. If not, the
- *              original reference in the ASL code is invalid -- i.e., refers
- *              to a non-existent object.
- *
- * NOTE:  The ASL "External" operator causes the name to be inserted into the
- *        namespace so that references to the external name will be resolved
- *        correctly here.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-LkCrossReferenceNamespace (
-    void)
-{
-    ACPI_WALK_STATE         *WalkState;
-
-
-    DbgPrint (ASL_DEBUG_OUTPUT, "\nCross referencing namespace\n\n");
-
-    /*
-     * Create a new walk state for use when looking up names
-     * within the namespace (Passed as context to the callbacks)
-     */
-    WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
-    if (!WalkState)
-    {
-        return (AE_NO_MEMORY);
-    }
-
-    /* Walk the entire parse tree */
-
-    TrWalkParseTree (RootNode, ASL_WALK_VISIT_TWICE, LkNamespaceLocateBegin,
-                        LkNamespaceLocateEnd, WalkState);
-    return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LkCheckFieldRange
- *
- * PARAMETERS:  RegionBitLength     - Length of entire parent region
- *              FieldBitOffset      - Start of the field unit (within region)
- *              FieldBitLength      - Entire length of field unit
- *              AccessBitWidth      - Access width of the field unit
- *
- * RETURN:      None
- *
- * DESCRIPTION: Check one field unit to make sure it fits in the parent
- *              op region.
- *
- * Note: AccessBitWidth must be either 8,16,32, or 64
- *
- ******************************************************************************/
-
-static void
-LkCheckFieldRange (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  RegionBitLength,
-    UINT32                  FieldBitOffset,
-    UINT32                  FieldBitLength,
-    UINT32                  AccessBitWidth)
-{
-    UINT32                  FieldEndBitOffset;
-
-
-    /*
-     * Check each field unit against the region size. The entire
-     * field unit (start offset plus length) must fit within the
-     * region.
-     */
-    FieldEndBitOffset = FieldBitOffset + FieldBitLength;
-
-    if (FieldEndBitOffset > RegionBitLength)
-    {
-        /* Field definition itself is beyond the end-of-region */
-
-        AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_OFFSET, Op, NULL);
-        return;
-    }
-
-    /*
-     * Now check that the field plus AccessWidth doesn't go beyond
-     * the end-of-region. Assumes AccessBitWidth is a power of 2
-     */
-    FieldEndBitOffset = ACPI_ROUND_UP (FieldEndBitOffset, AccessBitWidth);
-
-    if (FieldEndBitOffset > RegionBitLength)
-    {
-        /* Field definition combined with the access is beyond EOR */
-
-        AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_ACCESS_WIDTH, Op, NULL);
-    }
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    LkNamespaceLocateBegin
- *
- * PARAMETERS:  ASL_WALK_CALLBACK
+ * FUNCTION:    LkGetNameOp
  *
- * RETURN:      Status
+ * PARAMETERS:  Op              - Current Op
  *
- * DESCRIPTION: Descending callback used during cross-reference. For named
- *              object references, attempt to locate the name in the
- *              namespace.
+ * RETURN:      NameOp associated with the input op
  *
- * NOTE: ASL references to named fields within resource descriptors are
- *       resolved to integer values here. Therefore, this step is an
- *       important part of the code generation. We don't know that the
- *       name refers to a resource descriptor until now.
+ * DESCRIPTION: Find the name declaration op associated with the operator
  *
  ******************************************************************************/
 
-static ACPI_STATUS
-LkNamespaceLocateBegin (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  Level,
-    void                    *Context)
+static ACPI_PARSE_OBJECT *
+LkGetNameOp (
+    ACPI_PARSE_OBJECT       *Op)
 {
-    ACPI_WALK_STATE         *WalkState = (ACPI_WALK_STATE *) Context;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-    ACPI_OBJECT_TYPE        ObjectType;
-    char                    *Path;
-    UINT8                   PassedArgs;
-    ACPI_PARSE_OBJECT       *NextOp;
-    ACPI_PARSE_OBJECT       *OwningOp;
-    ACPI_PARSE_OBJECT       *SpaceIdOp;
-    UINT32                  MinimumLength;
-    UINT32                  Offset;
-    UINT32                  FieldBitLength;
-    UINT32                  TagBitLength;
-    UINT8                   Message = 0;
     const ACPI_OPCODE_INFO  *OpInfo;
-    UINT32                  Flags;
-
-
-    ACPI_FUNCTION_TRACE_PTR (LkNamespaceLocateBegin, Op);
-
-    /*
-     * If this node is the actual declaration of a name
-     * [such as the XXXX name in "Method (XXXX)"],
-     * we are not interested in it here. We only care about names that are
-     * references to other objects within the namespace and the parent objects
-     * of name declarations
-     */
-    if (Op->Asl.CompileFlags & NODE_IS_NAME_DECLARATION)
-    {
-        return (AE_OK);
-    }
+    ACPI_PARSE_OBJECT       *NameOp = Op;
 
-    /* We are only interested in opcodes that have an associated name */
 
     OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
 
-    if ((!(OpInfo->Flags & AML_NAMED)) &&
-        (!(OpInfo->Flags & AML_CREATE)) &&
-        (Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) &&
-        (Op->Asl.ParseOpcode != PARSEOP_NAMESEG)    &&
-        (Op->Asl.ParseOpcode != PARSEOP_METHODCALL))
-    {
-        return (AE_OK);
-    }
-
-    /*
-     * One special case: CondRefOf operator - we don't care if the name exists
-     * or not at this point, just ignore it, the point of the operator is to
-     * determine if the name exists at runtime.
-     */
-    if ((Op->Asl.Parent) &&
-        (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF))
-    {
-        return (AE_OK);
-    }
-
-    /*
-     * We must enable the "search-to-root" for single NameSegs, but
-     * we have to be very careful about opening up scopes
-     */
-    Flags = ACPI_NS_SEARCH_PARENT;
-    if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) ||
-        (Op->Asl.ParseOpcode == PARSEOP_NAMESEG)    ||
-        (Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
-    {
-        /*
-         * These are name references, do not push the scope stack
-         * for them.
-         */
-        Flags |= ACPI_NS_DONT_OPEN_SCOPE;
-    }
 
     /* Get the NamePath from the appropriate place */
 
@@ -893,510 +189,26 @@ LkNamespaceLocateBegin (
     {
         /* For nearly all NAMED operators, the name reference is the first child */
 
-        Path = Op->Asl.Child->Asl.Value.String;
+        NameOp = Op->Asl.Child;
         if (Op->Asl.AmlOpcode == AML_ALIAS_OP)
         {
             /*
              * ALIAS is the only oddball opcode, the name declaration
              * (alias name) is the second operand
              */
-            Path = Op->Asl.Child->Asl.Next->Asl.Value.String;
+            NameOp = Op->Asl.Child->Asl.Next;
         }
     }
     else if (OpInfo->Flags & AML_CREATE)
     {
         /* Name must appear as the last parameter */
 
-        NextOp = Op->Asl.Child;
-        while (!(NextOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION))
-        {
-            NextOp = NextOp->Asl.Next;
-        }
-        Path = NextOp->Asl.Value.String;
-    }
-    else
-    {
-        Path = Op->Asl.Value.String;
-    }
-
-    ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
-    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-        "Type=%s\n", AcpiUtGetTypeName (ObjectType)));
-
-    /*
-     * Lookup the name in the namespace. Name must exist at this point, or it
-     * is an invalid reference.
-     *
-     * The namespace is also used as a lookup table for references to resource
-     * descriptors and the fields within them.
-     */
-    Gbl_NsLookupCount++;
-
-    Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
-                ACPI_IMODE_EXECUTE, Flags, WalkState, &(Node));
-    if (ACPI_FAILURE (Status))
-    {
-        if (Status == AE_NOT_FOUND)
-        {
-            /*
-             * We didn't find the name reference by path -- we can qualify this
-             * a little better before we print an error message
-             */
-            if (strlen (Path) == ACPI_NAME_SIZE)
-            {
-                /* A simple, one-segment ACPI name */
-
-                if (LkObjectExists (Path))
-                {
-                    /*
-                     * There exists such a name, but we couldn't get to it
-                     * from this scope
-                     */
-                    AslError (ASL_ERROR, ASL_MSG_NOT_REACHABLE, Op,
-                        Op->Asl.ExternalName);
-                }
-                else
-                {
-                    /* The name doesn't exist, period */
-
-                    AslError (ASL_ERROR, ASL_MSG_NOT_EXIST,
-                        Op, Op->Asl.ExternalName);
-                }
-            }
-            else
-            {
-                /* Check for a fully qualified path */
-
-                if (Path[0] == AML_ROOT_PREFIX)
-                {
-                    /* Gave full path, the object does not exist */
-
-                    AslError (ASL_ERROR, ASL_MSG_NOT_EXIST, Op,
-                        Op->Asl.ExternalName);
-                }
-                else
-                {
-                    /*
-                     * We can't tell whether it doesn't exist or just
-                     * can't be reached.
-                     */
-                    AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
-                        Op->Asl.ExternalName);
-                }
-            }
-
-            Status = AE_OK;
-        }
-        return (Status);
-    }
-
-    /* Check for a reference vs. name declaration */
-
-    if (!(OpInfo->Flags & AML_NAMED) &&
-        !(OpInfo->Flags & AML_CREATE))
-    {
-        /* This node has been referenced, mark it for reference check */
-
-        Node->Flags |= ANOBJ_IS_REFERENCED;
-    }
-
-    /* Attempt to optimize the NamePath */
-
-    OptOptimizeNamePath (Op, OpInfo->Flags, WalkState, Path, Node);
-
-    /*
-     * 1) Dereference an alias (A name reference that is an alias)
-     *    Aliases are not nested, the alias always points to the final object
-     */
-    if ((Op->Asl.ParseOpcode != PARSEOP_ALIAS) &&
-        (Node->Type == ACPI_TYPE_LOCAL_ALIAS))
-    {
-        /* This node points back to the original PARSEOP_ALIAS */
-
-        NextOp = Node->Op;
-
-        /* The first child is the alias target op */
-
-        NextOp = NextOp->Asl.Child;
-
-        /* That in turn points back to original target alias node */
-
-        if (NextOp->Asl.Node)
-        {
-            Node = NextOp->Asl.Node;
-        }
-
-        /* Else - forward reference to alias, will be resolved later */
-    }
-
-    /* 2) Check for a reference to a resource descriptor */
-
-    if ((Node->Type == ACPI_TYPE_LOCAL_RESOURCE_FIELD) ||
-        (Node->Type == ACPI_TYPE_LOCAL_RESOURCE))
-    {
-        /*
-         * This was a reference to a field within a resource descriptor.
-         * Extract the associated field offset (either a bit or byte
-         * offset depending on the field type) and change the named
-         * reference into an integer for AML code generation
-         */
-        Offset = Node->Value;
-        TagBitLength = Node->Length;
-
-        /*
-         * If a field is being created, generate the length (in bits) of
-         * the field. Note: Opcodes other than CreateXxxField and Index
-         * can come through here. For other opcodes, we just need to
-         * convert the resource tag reference to an integer offset.
-         */
-        switch (Op->Asl.Parent->Asl.AmlOpcode)
-        {
-        case AML_CREATE_FIELD_OP: /* Variable "Length" field, in bits */
-            /*
-             * We know the length operand is an integer constant because
-             * we know that it contains a reference to a resource
-             * descriptor tag.
-             */
-            FieldBitLength = (UINT32) Op->Asl.Next->Asl.Value.Integer;
-            break;
-
-        case AML_CREATE_BIT_FIELD_OP:
-            FieldBitLength = 1;
-            break;
-
-        case AML_CREATE_BYTE_FIELD_OP:
-        case AML_INDEX_OP:
-            FieldBitLength = 8;
-            break;
-
-        case AML_CREATE_WORD_FIELD_OP:
-            FieldBitLength = 16;
-            break;
-
-        case AML_CREATE_DWORD_FIELD_OP:
-            FieldBitLength = 32;
-            break;
-
-        case AML_CREATE_QWORD_FIELD_OP:
-            FieldBitLength = 64;
-            break;
-
-        default:
-            FieldBitLength = 0;
-            break;
-        }
-
-        /* Check the field length against the length of the resource tag */
-
-        if (FieldBitLength)
-        {
-            if (TagBitLength < FieldBitLength)
-            {
-                Message = ASL_MSG_TAG_SMALLER;
-            }
-            else if (TagBitLength > FieldBitLength)
-            {
-                Message = ASL_MSG_TAG_LARGER;
-            }
-
-            if (Message)
-            {
-                sprintf (MsgBuffer, "Size mismatch, Tag: %u bit%s, Field: %u bit%s",
-                    TagBitLength, (TagBitLength > 1) ? "s" : "",
-                    FieldBitLength, (FieldBitLength > 1) ? "s" : "");
-
-                AslError (ASL_WARNING, Message, Op, MsgBuffer);
-            }
-        }
-
-        /* Convert the BitOffset to a ByteOffset for certain opcodes */
-
-        switch (Op->Asl.Parent->Asl.AmlOpcode)
-        {
-        case AML_CREATE_BYTE_FIELD_OP:
-        case AML_CREATE_WORD_FIELD_OP:
-        case AML_CREATE_DWORD_FIELD_OP:
-        case AML_CREATE_QWORD_FIELD_OP:
-        case AML_INDEX_OP:
-
-            Offset = ACPI_DIV_8 (Offset);
-            break;
-
-        default:
-            break;
-        }
-
-        /* Now convert this node to an integer whose value is the field offset */
-
-        Op->Asl.AmlLength = 0;
-        Op->Asl.ParseOpcode = PARSEOP_INTEGER;
-        Op->Asl.Value.Integer = (UINT64) Offset;
-        Op->Asl.CompileFlags |= NODE_IS_RESOURCE_FIELD;
-
-        OpcGenerateAmlOpcode (Op);
-    }
-
-    /* 3) Check for a method invocation */
-
-    else if ((((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) || (Op->Asl.ParseOpcode == PARSEOP_NAMESEG)) &&
-                (Node->Type == ACPI_TYPE_METHOD) &&
-                (Op->Asl.Parent) &&
-                (Op->Asl.Parent->Asl.ParseOpcode != PARSEOP_METHOD))   ||
-
-                (Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
-    {
-
-        /*
-         * A reference to a method within one of these opcodes is not an
-         * invocation of the method, it is simply a reference to the method.
-         */
-        if ((Op->Asl.Parent) &&
-           ((Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_REFOF)      ||
-            (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_DEREFOF)    ||
-            (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_OBJECTTYPE)))
-        {
-            return (AE_OK);
-        }
-        /*
-         * There are two types of method invocation:
-         * 1) Invocation with arguments -- the parser recognizes this
-         *    as a METHODCALL.
-         * 2) Invocation with no arguments --the parser cannot determine that
-         *    this is a method invocation, therefore we have to figure it out
-         *    here.
-         */
-        if (Node->Type != ACPI_TYPE_METHOD)
-        {
-            sprintf (MsgBuffer, "%s is a %s",
-                    Op->Asl.ExternalName, AcpiUtGetTypeName (Node->Type));
-
-            AslError (ASL_ERROR, ASL_MSG_NOT_METHOD, Op, MsgBuffer);
-            return (AE_OK);
-        }
-
-        /* Save the method node in the caller's op */
-
-        Op->Asl.Node = Node;
-        if (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF)
-        {
-            return (AE_OK);
-        }
-
-        /*
-         * This is a method invocation, with or without arguments.
-         * Count the number of arguments, each appears as a child
-         * under the parent node
-         */
-        Op->Asl.ParseOpcode = PARSEOP_METHODCALL;
-        UtSetParseOpName (Op);
-
-        PassedArgs = 0;
-        NextOp     = Op->Asl.Child;
-
-        while (NextOp)
-        {
-            PassedArgs++;
-            NextOp = NextOp->Asl.Next;
-        }
-
-        if (Node->Value != ASL_EXTERNAL_METHOD)
-        {
-            /*
-             * Check the parsed arguments with the number expected by the
-             * method declaration itself
-             */
-            if (PassedArgs != Node->Value)
-            {
-                sprintf (MsgBuffer, "%s requires %u", Op->Asl.ExternalName,
-                            Node->Value);
-
-                if (PassedArgs < Node->Value)
-                {
-                    AslError (ASL_ERROR, ASL_MSG_ARG_COUNT_LO, Op, MsgBuffer);
-                }
-                else
-                {
-                    AslError (ASL_ERROR, ASL_MSG_ARG_COUNT_HI, Op, MsgBuffer);
-                }
-            }
-        }
-    }
-
-    /* 4) Check for an ASL Field definition */
-
-    else if ((Op->Asl.Parent) &&
-            ((Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_FIELD)     ||
-             (Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_BANKFIELD)))
-    {
-        /*
-         * Offset checking for fields. If the parent operation region has a
-         * constant length (known at compile time), we can check fields
-         * defined in that region against the region length. This will catch
-         * fields and field units that cannot possibly fit within the region.
-         *
-         * Note: Index fields do not directly reference an operation region,
-         * thus they are not included in this check.
-         */
-        if (Op == Op->Asl.Parent->Asl.Child)
-        {
-            /*
-             * This is the first child of the field node, which is
-             * the name of the region. Get the parse node for the
-             * region -- which contains the length of the region.
-             */
-            OwningOp = Node->Op;
-            Op->Asl.Parent->Asl.ExtraValue =
-                ACPI_MUL_8 ((UINT32) OwningOp->Asl.Value.Integer);
-
-            /* Examine the field access width */
-
-            switch ((UINT8) Op->Asl.Parent->Asl.Value.Integer)
-            {
-            case AML_FIELD_ACCESS_ANY:
-            case AML_FIELD_ACCESS_BYTE:
-            case AML_FIELD_ACCESS_BUFFER:
-            default:
-                MinimumLength = 1;
-                break;
-
-            case AML_FIELD_ACCESS_WORD:
-                MinimumLength = 2;
-                break;
-
-            case AML_FIELD_ACCESS_DWORD:
-                MinimumLength = 4;
-                break;
-
-            case AML_FIELD_ACCESS_QWORD:
-                MinimumLength = 8;
-                break;
-            }
-
-            /*
-             * Is the region at least as big as the access width?
-             * Note: DataTableRegions have 0 length
-             */
-            if (((UINT32) OwningOp->Asl.Value.Integer) &&
-                ((UINT32) OwningOp->Asl.Value.Integer < MinimumLength))
-            {
-                AslError (ASL_ERROR, ASL_MSG_FIELD_ACCESS_WIDTH, Op, NULL);
-            }
-
-            /*
-             * Check EC/CMOS/SMBUS fields to make sure that the correct
-             * access type is used (BYTE for EC/CMOS, BUFFER for SMBUS)
-             */
-            SpaceIdOp = OwningOp->Asl.Child->Asl.Next;
-            switch ((UINT32) SpaceIdOp->Asl.Value.Integer)
-            {
-            case ACPI_ADR_SPACE_EC:
-            case ACPI_ADR_SPACE_CMOS:
-            case ACPI_ADR_SPACE_GPIO:
-
-                if ((UINT8) Op->Asl.Parent->Asl.Value.Integer != AML_FIELD_ACCESS_BYTE)
-                {
-                    AslError (ASL_ERROR, ASL_MSG_REGION_BYTE_ACCESS, Op, NULL);
-                }
-                break;
-
-            case ACPI_ADR_SPACE_SMBUS:
-            case ACPI_ADR_SPACE_IPMI:
-            case ACPI_ADR_SPACE_GSBUS:
-
-                if ((UINT8) Op->Asl.Parent->Asl.Value.Integer != AML_FIELD_ACCESS_BUFFER)
-                {
-                    AslError (ASL_ERROR, ASL_MSG_REGION_BUFFER_ACCESS, Op, NULL);
-                }
-                break;
-
-            default:
-
-                /* Nothing to do for other address spaces */
-                break;
-            }
-        }
-        else
+        NameOp = Op->Asl.Child;
+        while (!(NameOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION))
         {
-            /*
-             * This is one element of the field list. Check to make sure
-             * that it does not go beyond the end of the parent operation region.
-             *
-             * In the code below:
-             *    Op->Asl.Parent->Asl.ExtraValue      - Region Length (bits)
-             *    Op->Asl.ExtraValue                  - Field start offset (bits)
-             *    Op->Asl.Child->Asl.Value.Integer32  - Field length (bits)
-             *    Op->Asl.Child->Asl.ExtraValue       - Field access width (bits)
-             */
-            if (Op->Asl.Parent->Asl.ExtraValue && Op->Asl.Child)
-            {
-                LkCheckFieldRange (Op,
-                            Op->Asl.Parent->Asl.ExtraValue,
-                            Op->Asl.ExtraValue,
-                            (UINT32) Op->Asl.Child->Asl.Value.Integer,
-                            Op->Asl.Child->Asl.ExtraValue);
-            }
+            NameOp = NameOp->Asl.Next;
         }
     }
 
-    Op->Asl.Node = Node;
-    return (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    LkNamespaceLocateEnd
- *
- * PARAMETERS:  ASL_WALK_CALLBACK
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Ascending callback used during cross reference. We only
- *              need to worry about scope management here.
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-LkNamespaceLocateEnd (
-    ACPI_PARSE_OBJECT       *Op,
-    UINT32                  Level,
-    void                    *Context)
-{
-    ACPI_WALK_STATE         *WalkState = (ACPI_WALK_STATE *) Context;
-    const ACPI_OPCODE_INFO  *OpInfo;
-
-
-    ACPI_FUNCTION_TRACE (LkNamespaceLocateEnd);
-
-
-    /* We are only interested in opcodes that have an associated name */
-
-    OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
-    if (!(OpInfo->Flags & AML_NAMED))
-    {
-        return (AE_OK);
-    }
-
-    /* Not interested in name references, we did not open a scope for them */
-
-    if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) ||
-        (Op->Asl.ParseOpcode == PARSEOP_NAMESEG)    ||
-        (Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
-    {
-        return (AE_OK);
-    }
-
-    /* Pop the scope stack if necessary */
-
-    if (AcpiNsOpensScope (AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode)))
-    {
-
-        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
-            "%s: Popping scope for Op %p\n",
-            AcpiUtGetTypeName (OpInfo->ObjectType), Op));
-
-        (void) AcpiDsScopeStackPop (WalkState);
-    }
-
-    return (AE_OK);
+    return (NameOp);
 }