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804 lines
24 KiB
C
804 lines
24 KiB
C
/******************************************************************************
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*
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* Module Name: tbinstal - ACPI table installation and removal
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __TBINSTAL_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acnamesp.h"
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#include "actables.h"
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#define _COMPONENT ACPI_TABLES
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ACPI_MODULE_NAME ("tbinstal")
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/******************************************************************************
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*
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* FUNCTION: AcpiTbVerifyTable
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*
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* PARAMETERS: TableDesc - table
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*
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* RETURN: Status
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*
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* DESCRIPTION: this function is called to verify and map table
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*
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*****************************************************************************/
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ACPI_STATUS
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AcpiTbVerifyTable (
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ACPI_TABLE_DESC *TableDesc)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE (TbVerifyTable);
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/* Map the table if necessary */
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if (!TableDesc->Pointer)
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{
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if ((TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) ==
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ACPI_TABLE_ORIGIN_MAPPED)
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{
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TableDesc->Pointer = AcpiOsMapMemory (
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TableDesc->Address, TableDesc->Length);
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}
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if (!TableDesc->Pointer)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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}
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/* FACS is the odd table, has no standard ACPI header and no checksum */
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if (!ACPI_COMPARE_NAME (&TableDesc->Signature, ACPI_SIG_FACS))
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{
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/* Always calculate checksum, ignore bad checksum if requested */
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Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length);
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}
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbAddTable
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*
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* PARAMETERS: TableDesc - Table descriptor
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* TableIndex - Where the table index is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to add an ACPI table. It is used to
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* dynamically load tables via the Load and LoadTable AML
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* operators.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbAddTable (
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ACPI_TABLE_DESC *TableDesc,
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UINT32 *TableIndex)
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{
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UINT32 i;
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ACPI_STATUS Status = AE_OK;
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ACPI_TABLE_HEADER *OverrideTable = NULL;
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ACPI_FUNCTION_TRACE (TbAddTable);
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if (!TableDesc->Pointer)
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{
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Status = AcpiTbVerifyTable (TableDesc);
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if (ACPI_FAILURE (Status) || !TableDesc->Pointer)
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{
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Validate the incoming table signature.
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*
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* 1) Originally, we checked the table signature for "SSDT" or "PSDT".
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* 2) We added support for OEMx tables, signature "OEM".
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* 3) Valid tables were encountered with a null signature, so we just
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* gave up on validating the signature, (05/2008).
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* 4) We encountered non-AML tables such as the MADT, which caused
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* interpreter errors and kernel faults. So now, we once again allow
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* only "SSDT", "OEMx", and now, also a null signature. (05/2011).
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*/
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if ((TableDesc->Pointer->Signature[0] != 0x00) &&
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(!ACPI_COMPARE_NAME (TableDesc->Pointer->Signature, ACPI_SIG_SSDT)) &&
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(ACPI_STRNCMP (TableDesc->Pointer->Signature, "OEM", 3)))
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{
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ACPI_ERROR ((AE_INFO,
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"Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx",
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AcpiUtValidAcpiName (*(UINT32 *) TableDesc->Pointer->Signature) ?
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TableDesc->Pointer->Signature : "????",
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*(UINT32 *) TableDesc->Pointer->Signature));
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return_ACPI_STATUS (AE_BAD_SIGNATURE);
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}
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(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
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/* Check if table is already registered */
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for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
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{
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if (!AcpiGbl_RootTableList.Tables[i].Pointer)
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{
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Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]);
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if (ACPI_FAILURE (Status) ||
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!AcpiGbl_RootTableList.Tables[i].Pointer)
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{
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continue;
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}
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}
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/*
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* Check for a table match on the entire table length,
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* not just the header.
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*/
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if (TableDesc->Length != AcpiGbl_RootTableList.Tables[i].Length)
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{
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continue;
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}
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if (ACPI_MEMCMP (TableDesc->Pointer,
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AcpiGbl_RootTableList.Tables[i].Pointer,
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AcpiGbl_RootTableList.Tables[i].Length))
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{
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continue;
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}
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/*
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* Note: the current mechanism does not unregister a table if it is
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* dynamically unloaded. The related namespace entries are deleted,
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* but the table remains in the root table list.
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*
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* The assumption here is that the number of different tables that
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* will be loaded is actually small, and there is minimal overhead
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* in just keeping the table in case it is needed again.
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*
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* If this assumption changes in the future (perhaps on large
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* machines with many table load/unload operations), tables will
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* need to be unregistered when they are unloaded, and slots in the
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* root table list should be reused when empty.
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*/
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/*
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* Table is already registered.
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* We can delete the table that was passed as a parameter.
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*/
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AcpiTbDeleteTable (TableDesc);
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*TableIndex = i;
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if (AcpiGbl_RootTableList.Tables[i].Flags & ACPI_TABLE_IS_LOADED)
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{
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/* Table is still loaded, this is an error */
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Status = AE_ALREADY_EXISTS;
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goto Release;
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}
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else
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{
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/* Table was unloaded, allow it to be reloaded */
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TableDesc->Pointer = AcpiGbl_RootTableList.Tables[i].Pointer;
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TableDesc->Address = AcpiGbl_RootTableList.Tables[i].Address;
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Status = AE_OK;
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goto PrintHeader;
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}
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}
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/*
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* ACPI Table Override:
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* Allow the host to override dynamically loaded tables.
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*/
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Status = AcpiOsTableOverride (TableDesc->Pointer, &OverrideTable);
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if (ACPI_SUCCESS (Status) && OverrideTable)
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{
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ACPI_INFO ((AE_INFO,
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"%4.4s @ 0x%p Table override, replaced with:",
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TableDesc->Pointer->Signature,
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ACPI_CAST_PTR (void, TableDesc->Address)));
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/* We can delete the table that was passed as a parameter */
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AcpiTbDeleteTable (TableDesc);
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/* Setup descriptor for the new table */
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TableDesc->Address = ACPI_PTR_TO_PHYSADDR (OverrideTable);
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TableDesc->Pointer = OverrideTable;
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TableDesc->Length = OverrideTable->Length;
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TableDesc->Flags = ACPI_TABLE_ORIGIN_OVERRIDE;
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}
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/* Add the table to the global root table list */
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Status = AcpiTbStoreTable (TableDesc->Address, TableDesc->Pointer,
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TableDesc->Length, TableDesc->Flags, TableIndex);
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if (ACPI_FAILURE (Status))
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{
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goto Release;
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}
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PrintHeader:
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AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer);
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Release:
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(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbResizeRootTableList
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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: Expand the size of global table array
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbResizeRootTableList (
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void)
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{
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ACPI_TABLE_DESC *Tables;
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ACPI_FUNCTION_TRACE (TbResizeRootTableList);
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/* AllowResize flag is a parameter to AcpiInitializeTables */
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if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE))
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{
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ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed"));
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return_ACPI_STATUS (AE_SUPPORT);
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}
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/* Increase the Table Array size */
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Tables = ACPI_ALLOCATE_ZEROED (
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((ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount +
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ACPI_ROOT_TABLE_SIZE_INCREMENT) *
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sizeof (ACPI_TABLE_DESC));
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if (!Tables)
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{
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ACPI_ERROR ((AE_INFO, "Could not allocate new root table array"));
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Copy and free the previous table array */
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if (AcpiGbl_RootTableList.Tables)
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{
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ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables,
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(ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount * sizeof (ACPI_TABLE_DESC));
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if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
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{
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ACPI_FREE (AcpiGbl_RootTableList.Tables);
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}
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}
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AcpiGbl_RootTableList.Tables = Tables;
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AcpiGbl_RootTableList.MaxTableCount += ACPI_ROOT_TABLE_SIZE_INCREMENT;
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AcpiGbl_RootTableList.Flags |= (UINT8) ACPI_ROOT_ORIGIN_ALLOCATED;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbStoreTable
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*
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* PARAMETERS: Address - Table address
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* Table - Table header
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* Length - Table length
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* Flags - flags
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*
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* RETURN: Status and table index.
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*
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* DESCRIPTION: Add an ACPI table to the global table list
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbStoreTable (
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ACPI_PHYSICAL_ADDRESS Address,
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ACPI_TABLE_HEADER *Table,
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UINT32 Length,
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UINT8 Flags,
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UINT32 *TableIndex)
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{
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ACPI_STATUS Status;
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ACPI_TABLE_DESC *NewTable;
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/* Ensure that there is room for the table in the Root Table List */
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if (AcpiGbl_RootTableList.CurrentTableCount >=
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AcpiGbl_RootTableList.MaxTableCount)
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{
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Status = AcpiTbResizeRootTableList();
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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}
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NewTable = &AcpiGbl_RootTableList.Tables[AcpiGbl_RootTableList.CurrentTableCount];
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/* Initialize added table */
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NewTable->Address = Address;
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NewTable->Pointer = Table;
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NewTable->Length = Length;
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NewTable->OwnerId = 0;
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NewTable->Flags = Flags;
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ACPI_MOVE_32_TO_32 (&NewTable->Signature, Table->Signature);
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*TableIndex = AcpiGbl_RootTableList.CurrentTableCount;
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AcpiGbl_RootTableList.CurrentTableCount++;
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbDeleteTable
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*
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* PARAMETERS: TableIndex - Table index
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*
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* RETURN: None
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*
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* DESCRIPTION: Delete one internal ACPI table
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*
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******************************************************************************/
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void
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AcpiTbDeleteTable (
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ACPI_TABLE_DESC *TableDesc)
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{
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/* Table must be mapped or allocated */
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if (!TableDesc->Pointer)
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{
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return;
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}
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switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK)
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{
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case ACPI_TABLE_ORIGIN_MAPPED:
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AcpiOsUnmapMemory (TableDesc->Pointer, TableDesc->Length);
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break;
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case ACPI_TABLE_ORIGIN_ALLOCATED:
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ACPI_FREE (TableDesc->Pointer);
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break;
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default:
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break;
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}
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TableDesc->Pointer = NULL;
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbTerminate
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*
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* PARAMETERS: None
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*
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* RETURN: None
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*
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* DESCRIPTION: Delete all internal ACPI tables
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*
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******************************************************************************/
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void
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AcpiTbTerminate (
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void)
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{
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UINT32 i;
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ACPI_FUNCTION_TRACE (TbTerminate);
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(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
|
|
/* Delete the individual tables */
|
|
|
|
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
|
|
{
|
|
AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]);
|
|
}
|
|
|
|
/*
|
|
* Delete the root table array if allocated locally. Array cannot be
|
|
* mapped, so we don't need to check for that flag.
|
|
*/
|
|
if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
|
|
{
|
|
ACPI_FREE (AcpiGbl_RootTableList.Tables);
|
|
}
|
|
|
|
AcpiGbl_RootTableList.Tables = NULL;
|
|
AcpiGbl_RootTableList.Flags = 0;
|
|
AcpiGbl_RootTableList.CurrentTableCount = 0;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbDeleteNamespaceByOwner
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Delete all namespace objects created when this table was loaded.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbDeleteNamespaceByOwner (
|
|
UINT32 TableIndex)
|
|
{
|
|
ACPI_OWNER_ID OwnerId;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (TbDeleteNamespaceByOwner);
|
|
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
/* The table index does not exist */
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
/* Get the owner ID for this table, used to delete namespace nodes */
|
|
|
|
OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId;
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
|
|
/*
|
|
* Need to acquire the namespace writer lock to prevent interference
|
|
* with any concurrent namespace walks. The interpreter must be
|
|
* released during the deletion since the acquisition of the deletion
|
|
* lock may block, and also since the execution of a namespace walk
|
|
* must be allowed to use the interpreter.
|
|
*/
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER);
|
|
Status = AcpiUtAcquireWriteLock (&AcpiGbl_NamespaceRwLock);
|
|
|
|
AcpiNsDeleteNamespaceByOwner (OwnerId);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
AcpiUtReleaseWriteLock (&AcpiGbl_NamespaceRwLock);
|
|
|
|
Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbAllocateOwnerId
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Allocates OwnerId in TableDesc
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbAllocateOwnerId (
|
|
UINT32 TableIndex)
|
|
{
|
|
ACPI_STATUS Status = AE_BAD_PARAMETER;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (TbAllocateOwnerId);
|
|
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
Status = AcpiUtAllocateOwnerId
|
|
(&(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId));
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbReleaseOwnerId
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Releases OwnerId in TableDesc
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbReleaseOwnerId (
|
|
UINT32 TableIndex)
|
|
{
|
|
ACPI_STATUS Status = AE_BAD_PARAMETER;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (TbReleaseOwnerId);
|
|
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
AcpiUtReleaseOwnerId (
|
|
&(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId));
|
|
Status = AE_OK;
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbGetOwnerId
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
* OwnerId - Where the table OwnerId is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: returns OwnerId for the ACPI table
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbGetOwnerId (
|
|
UINT32 TableIndex,
|
|
ACPI_OWNER_ID *OwnerId)
|
|
{
|
|
ACPI_STATUS Status = AE_BAD_PARAMETER;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (TbGetOwnerId);
|
|
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
*OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId;
|
|
Status = AE_OK;
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbIsTableLoaded
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
*
|
|
* RETURN: Table Loaded Flag
|
|
*
|
|
******************************************************************************/
|
|
|
|
BOOLEAN
|
|
AcpiTbIsTableLoaded (
|
|
UINT32 TableIndex)
|
|
{
|
|
BOOLEAN IsLoaded = FALSE;
|
|
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
IsLoaded = (BOOLEAN)
|
|
(AcpiGbl_RootTableList.Tables[TableIndex].Flags &
|
|
ACPI_TABLE_IS_LOADED);
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
return (IsLoaded);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbSetTableLoadedFlag
|
|
*
|
|
* PARAMETERS: TableIndex - Table index
|
|
* IsLoaded - TRUE if table is loaded, FALSE otherwise
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiTbSetTableLoadedFlag (
|
|
UINT32 TableIndex,
|
|
BOOLEAN IsLoaded)
|
|
{
|
|
|
|
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
|
|
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
|
|
{
|
|
if (IsLoaded)
|
|
{
|
|
AcpiGbl_RootTableList.Tables[TableIndex].Flags |=
|
|
ACPI_TABLE_IS_LOADED;
|
|
}
|
|
else
|
|
{
|
|
AcpiGbl_RootTableList.Tables[TableIndex].Flags &=
|
|
~ACPI_TABLE_IS_LOADED;
|
|
}
|
|
}
|
|
|
|
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
|
|
}
|
|
|