887 lines
27 KiB
C
887 lines
27 KiB
C
/******************************************************************************
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*
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* Module Name: aslxref - Namespace cross-reference
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2013, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <contrib/dev/acpica/compiler/aslcompiler.h>
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#include "aslcompiler.y.h"
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#include <contrib/dev/acpica/include/acparser.h>
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#include <contrib/dev/acpica/include/amlcode.h>
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#include <contrib/dev/acpica/include/acnamesp.h>
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#include <contrib/dev/acpica/include/acdispat.h>
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#define _COMPONENT ACPI_COMPILER
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ACPI_MODULE_NAME ("aslxref")
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/* Local prototypes */
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static ACPI_STATUS
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XfNamespaceLocateBegin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static ACPI_STATUS
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XfNamespaceLocateEnd (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context);
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static BOOLEAN
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XfObjectExists (
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char *Name);
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static ACPI_STATUS
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XfCompareOneNamespaceObject (
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ACPI_HANDLE ObjHandle,
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UINT32 Level,
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void *Context,
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void **ReturnValue);
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static void
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XfCheckFieldRange (
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ACPI_PARSE_OBJECT *Op,
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UINT32 RegionBitLength,
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UINT32 FieldBitOffset,
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UINT32 FieldBitLength,
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UINT32 AccessBitWidth);
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/*******************************************************************************
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*
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* FUNCTION: XfCrossReferenceNamespace
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Perform a cross reference check of the parse tree against the
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* namespace. Every named referenced within the parse tree
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* should be get resolved with a namespace lookup. If not, the
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* original reference in the ASL code is invalid -- i.e., refers
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* to a non-existent object.
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*
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* NOTE: The ASL "External" operator causes the name to be inserted into the
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* namespace so that references to the external name will be resolved
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* correctly here.
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*
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******************************************************************************/
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ACPI_STATUS
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XfCrossReferenceNamespace (
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void)
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{
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ACPI_WALK_STATE *WalkState;
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DbgPrint (ASL_DEBUG_OUTPUT, "\nCross referencing namespace\n\n");
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/*
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* Create a new walk state for use when looking up names
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* within the namespace (Passed as context to the callbacks)
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*/
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WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
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if (!WalkState)
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{
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return (AE_NO_MEMORY);
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}
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/* Walk the entire parse tree */
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TrWalkParseTree (RootNode, ASL_WALK_VISIT_TWICE, XfNamespaceLocateBegin,
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XfNamespaceLocateEnd, WalkState);
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: XfObjectExists
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*
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* PARAMETERS: Name - 4 char ACPI name
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*
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* RETURN: TRUE if name exists in namespace
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*
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* DESCRIPTION: Walk the namespace to find an object
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*
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******************************************************************************/
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static BOOLEAN
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XfObjectExists (
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char *Name)
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{
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ACPI_STATUS Status;
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/* Walk entire namespace from the supplied root */
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Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
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ACPI_UINT32_MAX, FALSE, XfCompareOneNamespaceObject, NULL,
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Name, NULL);
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if (Status == AE_CTRL_TRUE)
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{
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/* At least one instance of the name was found */
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return (TRUE);
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}
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return (FALSE);
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}
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/*******************************************************************************
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*
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* FUNCTION: XfCompareOneNamespaceObject
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*
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* PARAMETERS: ACPI_WALK_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Compare name of one object.
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*
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******************************************************************************/
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static ACPI_STATUS
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XfCompareOneNamespaceObject (
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ACPI_HANDLE ObjHandle,
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UINT32 Level,
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void *Context,
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void **ReturnValue)
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{
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ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
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/* Simply check the name */
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if (*((UINT32 *) (Context)) == Node->Name.Integer)
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{
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/* Abort walk if we found one instance */
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return (AE_CTRL_TRUE);
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}
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: XfCheckFieldRange
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*
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* PARAMETERS: RegionBitLength - Length of entire parent region
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* FieldBitOffset - Start of the field unit (within region)
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* FieldBitLength - Entire length of field unit
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* AccessBitWidth - Access width of the field unit
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*
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* RETURN: None
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*
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* DESCRIPTION: Check one field unit to make sure it fits in the parent
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* op region.
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*
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* Note: AccessBitWidth must be either 8,16,32, or 64
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*
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******************************************************************************/
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static void
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XfCheckFieldRange (
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ACPI_PARSE_OBJECT *Op,
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UINT32 RegionBitLength,
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UINT32 FieldBitOffset,
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UINT32 FieldBitLength,
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UINT32 AccessBitWidth)
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{
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UINT32 FieldEndBitOffset;
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/*
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* Check each field unit against the region size. The entire
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* field unit (start offset plus length) must fit within the
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* region.
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*/
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FieldEndBitOffset = FieldBitOffset + FieldBitLength;
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if (FieldEndBitOffset > RegionBitLength)
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{
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/* Field definition itself is beyond the end-of-region */
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AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_OFFSET, Op, NULL);
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return;
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}
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/*
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* Now check that the field plus AccessWidth doesn't go beyond
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* the end-of-region. Assumes AccessBitWidth is a power of 2
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*/
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FieldEndBitOffset = ACPI_ROUND_UP (FieldEndBitOffset, AccessBitWidth);
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if (FieldEndBitOffset > RegionBitLength)
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{
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/* Field definition combined with the access is beyond EOR */
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AslError (ASL_ERROR, ASL_MSG_FIELD_UNIT_ACCESS_WIDTH, Op, NULL);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: XfNamespaceLocateBegin
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*
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* PARAMETERS: ASL_WALK_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Descending callback used during cross-reference. For named
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* object references, attempt to locate the name in the
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* namespace.
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*
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* NOTE: ASL references to named fields within resource descriptors are
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* resolved to integer values here. Therefore, this step is an
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* important part of the code generation. We don't know that the
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* name refers to a resource descriptor until now.
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*
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******************************************************************************/
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static ACPI_STATUS
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XfNamespaceLocateBegin (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context)
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{
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ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_OBJECT_TYPE ObjectType;
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char *Path;
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UINT8 PassedArgs;
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ACPI_PARSE_OBJECT *NextOp;
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ACPI_PARSE_OBJECT *OwningOp;
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ACPI_PARSE_OBJECT *SpaceIdOp;
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UINT32 MinimumLength;
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UINT32 Offset;
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UINT32 FieldBitLength;
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UINT32 TagBitLength;
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UINT8 Message = 0;
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const ACPI_OPCODE_INFO *OpInfo;
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UINT32 Flags;
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ACPI_FUNCTION_TRACE_PTR (XfNamespaceLocateBegin, Op);
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/*
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* If this node is the actual declaration of a name
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* [such as the XXXX name in "Method (XXXX)"],
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* we are not interested in it here. We only care about names that are
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* references to other objects within the namespace and the parent objects
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* of name declarations
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*/
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if (Op->Asl.CompileFlags & NODE_IS_NAME_DECLARATION)
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{
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return (AE_OK);
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}
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/* We are only interested in opcodes that have an associated name */
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OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode);
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if ((!(OpInfo->Flags & AML_NAMED)) &&
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(!(OpInfo->Flags & AML_CREATE)) &&
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(Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) &&
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(Op->Asl.ParseOpcode != PARSEOP_NAMESEG) &&
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(Op->Asl.ParseOpcode != PARSEOP_METHODCALL))
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{
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return (AE_OK);
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}
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/*
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* One special case: CondRefOf operator - we don't care if the name exists
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* or not at this point, just ignore it, the point of the operator is to
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* determine if the name exists at runtime.
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*/
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if ((Op->Asl.Parent) &&
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(Op->Asl.Parent->Asl.ParseOpcode == PARSEOP_CONDREFOF))
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{
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return (AE_OK);
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}
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/*
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* We must enable the "search-to-root" for single NameSegs, but
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* we have to be very careful about opening up scopes
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*/
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Flags = ACPI_NS_SEARCH_PARENT;
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if ((Op->Asl.ParseOpcode == PARSEOP_NAMESTRING) ||
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(Op->Asl.ParseOpcode == PARSEOP_NAMESEG) ||
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(Op->Asl.ParseOpcode == PARSEOP_METHODCALL))
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{
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/*
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* These are name references, do not push the scope stack
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* for them.
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*/
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Flags |= ACPI_NS_DONT_OPEN_SCOPE;
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}
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/* Get the NamePath from the appropriate place */
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if (OpInfo->Flags & AML_NAMED)
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{
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/* For nearly all NAMED operators, the name reference is the first child */
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Path = Op->Asl.Child->Asl.Value.String;
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if (Op->Asl.AmlOpcode == AML_ALIAS_OP)
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{
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/*
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* ALIAS is the only oddball opcode, the name declaration
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* (alias name) is the second operand
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*/
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Path = Op->Asl.Child->Asl.Next->Asl.Value.String;
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}
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}
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else if (OpInfo->Flags & AML_CREATE)
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{
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/* Name must appear as the last parameter */
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NextOp = Op->Asl.Child;
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while (!(NextOp->Asl.CompileFlags & NODE_IS_NAME_DECLARATION))
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{
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NextOp = NextOp->Asl.Next;
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}
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Path = NextOp->Asl.Value.String;
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}
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else
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{
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Path = Op->Asl.Value.String;
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}
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ObjectType = AslMapNamedOpcodeToDataType (Op->Asl.AmlOpcode);
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"Type=%s\n", AcpiUtGetTypeName (ObjectType)));
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/*
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* Lookup the name in the namespace. Name must exist at this point, or it
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* is an invalid reference.
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*
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* The namespace is also used as a lookup table for references to resource
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* descriptors and the fields within them.
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*/
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Gbl_NsLookupCount++;
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_EXECUTE, Flags, WalkState, &(Node));
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if (ACPI_FAILURE (Status))
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{
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if (Status == AE_NOT_FOUND)
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{
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/*
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* We didn't find the name reference by path -- we can qualify this
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* a little better before we print an error message
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*/
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if (strlen (Path) == ACPI_NAME_SIZE)
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{
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/* A simple, one-segment ACPI name */
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if (XfObjectExists (Path))
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{
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/*
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* There exists such a name, but we couldn't get to it
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* from this scope
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*/
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AslError (ASL_ERROR, ASL_MSG_NOT_REACHABLE, Op,
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Op->Asl.ExternalName);
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}
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else
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{
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/* The name doesn't exist, period */
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AslError (ASL_ERROR, ASL_MSG_NOT_EXIST,
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Op, Op->Asl.ExternalName);
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}
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}
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else
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{
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/* Check for a fully qualified path */
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if (Path[0] == AML_ROOT_PREFIX)
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{
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/* Gave full path, the object does not exist */
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AslError (ASL_ERROR, ASL_MSG_NOT_EXIST, Op,
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Op->Asl.ExternalName);
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}
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else
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{
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/*
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* We can't tell whether it doesn't exist or just
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* can't be reached.
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*/
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AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op,
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Op->Asl.ExternalName);
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}
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}
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Status = AE_OK;
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}
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return (Status);
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}
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/* Check for a reference vs. name declaration */
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if (!(OpInfo->Flags & AML_NAMED) &&
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!(OpInfo->Flags & AML_CREATE))
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{
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/* This node has been referenced, mark it for reference check */
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Node->Flags |= ANOBJ_IS_REFERENCED;
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}
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/* Attempt to optimize the NamePath */
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OptOptimizeNamePath (Op, OpInfo->Flags, WalkState, Path, Node);
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/*
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* 1) Dereference an alias (A name reference that is an alias)
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* Aliases are not nested, the alias always points to the final object
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*/
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if ((Op->Asl.ParseOpcode != PARSEOP_ALIAS) &&
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(Node->Type == ACPI_TYPE_LOCAL_ALIAS))
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{
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/* This node points back to the original PARSEOP_ALIAS */
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NextOp = Node->Op;
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/* The first child is the alias target op */
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NextOp = NextOp->Asl.Child;
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/* That in turn points back to original target alias node */
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if (NextOp->Asl.Node)
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{
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Node = NextOp->Asl.Node;
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}
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/* Else - forward reference to alias, will be resolved later */
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}
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/* 2) Check for a reference to a resource descriptor */
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if ((Node->Type == ACPI_TYPE_LOCAL_RESOURCE_FIELD) ||
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(Node->Type == ACPI_TYPE_LOCAL_RESOURCE))
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{
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/*
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* This was a reference to a field within a resource descriptor.
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* Extract the associated field offset (either a bit or byte
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* offset depending on the field type) and change the named
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* reference into an integer for AML code generation
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*/
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Offset = Node->Value;
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TagBitLength = Node->Length;
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/*
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* If a field is being created, generate the length (in bits) of
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* the field. Note: Opcodes other than CreateXxxField and Index
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* can come through here. For other opcodes, we just need to
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* convert the resource tag reference to an integer offset.
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*/
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switch (Op->Asl.Parent->Asl.AmlOpcode)
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{
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case AML_CREATE_FIELD_OP: /* Variable "Length" field, in bits */
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/*
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* We know the length operand is an integer constant because
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* we know that it contains a reference to a resource
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* descriptor tag.
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*/
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FieldBitLength = (UINT32) Op->Asl.Next->Asl.Value.Integer;
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break;
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case AML_CREATE_BIT_FIELD_OP:
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FieldBitLength = 1;
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break;
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case AML_CREATE_BYTE_FIELD_OP:
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case AML_INDEX_OP:
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FieldBitLength = 8;
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break;
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case AML_CREATE_WORD_FIELD_OP:
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FieldBitLength = 16;
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break;
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case AML_CREATE_DWORD_FIELD_OP:
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FieldBitLength = 32;
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break;
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case AML_CREATE_QWORD_FIELD_OP:
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FieldBitLength = 64;
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break;
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default:
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FieldBitLength = 0;
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break;
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}
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/* Check the field length against the length of the resource tag */
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if (FieldBitLength)
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{
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if (TagBitLength < FieldBitLength)
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{
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Message = ASL_MSG_TAG_SMALLER;
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}
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else if (TagBitLength > FieldBitLength)
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{
|
|
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
|
|
{
|
|
/*
|
|
* 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)
|
|
{
|
|
XfCheckFieldRange (Op,
|
|
Op->Asl.Parent->Asl.ExtraValue,
|
|
Op->Asl.ExtraValue,
|
|
(UINT32) Op->Asl.Child->Asl.Value.Integer,
|
|
Op->Asl.Child->Asl.ExtraValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
Op->Asl.Node = Node;
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: XfNamespaceLocateEnd
|
|
*
|
|
* 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
|
|
XfNamespaceLocateEnd (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
UINT32 Level,
|
|
void *Context)
|
|
{
|
|
ACPI_WALK_STATE *WalkState = (ACPI_WALK_STATE *) Context;
|
|
const ACPI_OPCODE_INFO *OpInfo;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (XfNamespaceLocateEnd);
|
|
|
|
|
|
/* 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);
|
|
}
|