926328c406
is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
693 lines
20 KiB
C
693 lines
20 KiB
C
/******************************************************************************
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*
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* Module Name: tbinstal - ACPI table installation and removal
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* $Revision: 32 $
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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, Intel Corp. All rights
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* 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 "achware.h"
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#include "actables.h"
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#define _COMPONENT TABLE_MANAGER
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MODULE_NAME ("tbinstal")
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbInstallTable
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*
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* PARAMETERS: TablePtr - Input buffer pointer, optional
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* TableInfo - Return value from AcpiTbGetTable
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*
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* RETURN: Status
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*
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* DESCRIPTION: Load and validate all tables other than the RSDT. The RSDT must
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* already be loaded and validated.
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* Install the table into the global data structs.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbInstallTable (
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ACPI_TABLE_HEADER *TablePtr,
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ACPI_TABLE_DESC *TableInfo)
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{
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ACPI_STATUS Status;
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FUNCTION_TRACE ("TbInstallTable");
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/*
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* Check the table signature and make sure it is recognized
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* Also checks the header checksum
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*/
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Status = AcpiTbRecognizeTable (TablePtr, TableInfo);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/* Lock tables while installing */
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AcpiCmAcquireMutex (ACPI_MTX_TABLES);
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/* Install the table into the global data structure */
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Status = AcpiTbInitTableDescriptor (TableInfo->Type, TableInfo);
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DEBUG_PRINT (ACPI_INFO, ("%s located at %p\n",
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AcpiGbl_AcpiTableData[TableInfo->Type].Name, TableInfo->Pointer));
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AcpiCmReleaseMutex (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: AcpiTbRecognizeTable
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*
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* PARAMETERS: TablePtr - Input buffer pointer, optional
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* TableInfo - Return value from AcpiTbGetTable
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*
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* RETURN: Status
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*
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* DESCRIPTION: Check a table signature for a match against known table types
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*
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* NOTE: All table pointers are validated as follows:
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* 1) Table pointer must point to valid physical memory
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* 2) Signature must be 4 ASCII chars, even if we don't recognize the
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* name
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* 3) Table must be readable for length specified in the header
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* 4) Table checksum must be valid (with the exception of the FACS
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* which has no checksum for some odd reason)
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbRecognizeTable (
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ACPI_TABLE_HEADER *TablePtr,
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ACPI_TABLE_DESC *TableInfo)
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{
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ACPI_TABLE_HEADER *TableHeader;
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ACPI_STATUS Status;
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ACPI_TABLE_TYPE TableType = 0;
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UINT32 i;
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FUNCTION_TRACE ("TbRecognizeTable");
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/* Ensure that we have a valid table pointer */
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TableHeader = (ACPI_TABLE_HEADER *) TableInfo->Pointer;
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if (!TableHeader)
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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/*
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* Search for a signature match among the known table types
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* Start at index one -> Skip the RSDP
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*/
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Status = AE_SUPPORT;
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for (i = 1; i < NUM_ACPI_TABLES; i++)
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{
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if (!STRNCMP (TableHeader->Signature,
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AcpiGbl_AcpiTableData[i].Signature,
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AcpiGbl_AcpiTableData[i].SigLength))
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{
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/*
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* Found a signature match, get the pertinent info from the
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* TableData structure
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*/
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TableType = i;
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Status = AcpiGbl_AcpiTableData[i].Status;
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DEBUG_PRINT (ACPI_INFO,
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("TbRecognizeTable: Found %4.4s\n",
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AcpiGbl_AcpiTableData[i].Signature));
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break;
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}
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}
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/* Return the table type and length via the info struct */
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TableInfo->Type = (UINT8) TableType;
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TableInfo->Length = TableHeader->Length;
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/*
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* Validate checksum for _most_ tables,
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* even the ones whose signature we don't recognize
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*/
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if (TableType != ACPI_TABLE_FACS)
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{
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/* But don't abort if the checksum is wrong */
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/* TBD: [Future] make this a configuration option? */
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AcpiTbVerifyTableChecksum (TableHeader);
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}
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/*
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* An AE_SUPPORT means that the table was not recognized.
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* We basically ignore this; just print a debug message
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*/
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if (Status == AE_SUPPORT)
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{
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DEBUG_PRINT (ACPI_INFO,
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("Unsupported table %s (Type %d) was found and discarded\n",
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AcpiGbl_AcpiTableData[TableType].Name, TableType));
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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: AcpiTbInitTableDescriptor
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*
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* PARAMETERS: TableType - The type of the table
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* TableInfo - A table info struct
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*
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* RETURN: None.
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*
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* DESCRIPTION: Install a table into the global data structs.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbInitTableDescriptor (
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ACPI_TABLE_TYPE TableType,
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ACPI_TABLE_DESC *TableInfo)
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{
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ACPI_TABLE_DESC *ListHead;
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ACPI_TABLE_DESC *TableDesc;
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FUNCTION_TRACE_U32 ("TbInitTableDescriptor", TableType);
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/*
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* Install the table into the global data structure
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*/
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ListHead = &AcpiGbl_AcpiTables[TableType];
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TableDesc = ListHead;
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/*
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* Two major types of tables: 1) Only one instance is allowed. This
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* includes most ACPI tables such as the DSDT. 2) Multiple instances of
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* the table are allowed. This includes SSDT and PSDTs.
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*/
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if (IS_SINGLE_TABLE (AcpiGbl_AcpiTableData[TableType].Flags))
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{
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/*
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* Only one table allowed, and a table has alread been installed
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* at this location, so return an error.
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*/
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if (ListHead->Pointer)
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{
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return_ACPI_STATUS (AE_EXIST);
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}
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TableDesc->Count = 1;
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}
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else
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{
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/*
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* Multiple tables allowed for this table type, we must link
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* the new table in to the list of tables of this type.
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*/
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if (ListHead->Pointer)
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{
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TableDesc = AcpiCmCallocate (sizeof (ACPI_TABLE_DESC));
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if (!TableDesc)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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ListHead->Count++;
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/* Update the original previous */
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ListHead->Prev->Next = TableDesc;
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/* Update new entry */
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TableDesc->Prev = ListHead->Prev;
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TableDesc->Next = ListHead;
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/* Update list head */
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ListHead->Prev = TableDesc;
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}
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else
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{
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TableDesc->Count = 1;
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}
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}
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/* Common initialization of the table descriptor */
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TableDesc->Pointer = TableInfo->Pointer;
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TableDesc->BasePointer = TableInfo->BasePointer;
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TableDesc->Length = TableInfo->Length;
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TableDesc->Allocation = TableInfo->Allocation;
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TableDesc->AmlPointer = (UINT8 *) (TableDesc->Pointer + 1),
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TableDesc->AmlLength = (UINT32) (TableDesc->Length -
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(UINT32) sizeof (ACPI_TABLE_HEADER));
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TableDesc->TableId = AcpiCmAllocateOwnerId (OWNER_TYPE_TABLE);
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TableDesc->LoadedIntoNamespace = FALSE;
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/*
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* Set the appropriate global pointer (if there is one) to point to the
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* newly installed table
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*/
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if (AcpiGbl_AcpiTableData[TableType].GlobalPtr)
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{
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*(AcpiGbl_AcpiTableData[TableType].GlobalPtr) = TableInfo->Pointer;
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}
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/* Return Data */
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TableInfo->TableId = TableDesc->TableId;
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TableInfo->InstalledDesc = TableDesc;
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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: AcpiTbDeleteAcpiTables
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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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AcpiTbDeleteAcpiTables (void)
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{
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ACPI_TABLE_TYPE Type;
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/*
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* Free memory allocated for ACPI tables
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* Memory can either be mapped or allocated
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*/
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for (Type = 0; Type < NUM_ACPI_TABLES; Type++)
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{
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AcpiTbDeleteAcpiTable (Type);
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbDeleteAcpiTable
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*
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* PARAMETERS: Type - The table type to be deleted
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*
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* RETURN: None.
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*
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* DESCRIPTION: Delete an internal ACPI table
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* Locks the ACPI table mutex
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*
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******************************************************************************/
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void
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AcpiTbDeleteAcpiTable (
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ACPI_TABLE_TYPE Type)
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{
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FUNCTION_TRACE_U32 ("TbDeleteAcpiTable", Type);
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if (Type > ACPI_TABLE_MAX)
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{
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return_VOID;
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}
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AcpiCmAcquireMutex (ACPI_MTX_TABLES);
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/* Free the table */
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AcpiTbFreeAcpiTablesOfType (&AcpiGbl_AcpiTables[Type]);
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/* Clear the appropriate "typed" global table pointer */
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switch (Type)
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{
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case ACPI_TABLE_RSDP:
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AcpiGbl_RSDP = NULL;
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break;
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case ACPI_TABLE_APIC:
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AcpiGbl_APIC = NULL;
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break;
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case ACPI_TABLE_DSDT:
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AcpiGbl_DSDT = NULL;
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break;
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case ACPI_TABLE_FACP:
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AcpiGbl_FACP = NULL;
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break;
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case ACPI_TABLE_FACS:
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AcpiGbl_FACS = NULL;
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break;
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case ACPI_TABLE_PSDT:
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break;
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case ACPI_TABLE_RSDT:
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AcpiGbl_RSDT = NULL;
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break;
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case ACPI_TABLE_SSDT:
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break;
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case ACPI_TABLE_SBST:
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AcpiGbl_SBST = NULL;
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case ACPI_TABLE_SPIC:
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break;
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default:
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break;
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}
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AcpiCmReleaseMutex (ACPI_MTX_TABLES);
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return_VOID;
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbFreeAcpiTablesOfType
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*
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* PARAMETERS: TableInfo - A table info struct
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*
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* RETURN: None.
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*
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* DESCRIPTION: Free the memory associated with an internal ACPI table
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* Table mutex should be locked.
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*
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******************************************************************************/
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void
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AcpiTbFreeAcpiTablesOfType (
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ACPI_TABLE_DESC *ListHead)
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{
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ACPI_TABLE_DESC *TableDesc;
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UINT32 Count;
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UINT32 i;
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FUNCTION_TRACE_PTR ("TbFreeAcpiTablesOfType", ListHead);
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/* Get the head of the list */
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TableDesc = ListHead;
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Count = ListHead->Count;
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/*
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* Walk the entire list, deleting both the allocated tables
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* and the table descriptors
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*/
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for (i = 0; i < Count; i++)
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{
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TableDesc = AcpiTbUninstallTable (TableDesc);
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}
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return_VOID;
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbDeleteSingleTable
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*
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* PARAMETERS: TableInfo - A table info struct
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*
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* RETURN: None.
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*
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* DESCRIPTION: Low-level free for a single ACPI table. Handles cases where
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* the table was allocated a buffer or was mapped.
|
|
*
|
|
******************************************************************************/
|
|
|
|
void
|
|
AcpiTbDeleteSingleTable (
|
|
ACPI_TABLE_DESC *TableDesc)
|
|
{
|
|
|
|
if (!TableDesc)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (TableDesc->Pointer)
|
|
{
|
|
/* Valid table, determine type of memory allocation */
|
|
|
|
switch (TableDesc->Allocation)
|
|
{
|
|
|
|
case ACPI_MEM_NOT_ALLOCATED:
|
|
break;
|
|
|
|
|
|
case ACPI_MEM_ALLOCATED:
|
|
|
|
AcpiCmFree (TableDesc->BasePointer);
|
|
break;
|
|
|
|
|
|
case ACPI_MEM_MAPPED:
|
|
|
|
AcpiOsUnmapMemory (TableDesc->BasePointer, TableDesc->Length);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbUninstallTable
|
|
*
|
|
* PARAMETERS: TableInfo - A table info struct
|
|
*
|
|
* RETURN: None.
|
|
*
|
|
* DESCRIPTION: Free the memory associated with an internal ACPI table that
|
|
* is either installed or has never been installed.
|
|
* Table mutex should be locked.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_TABLE_DESC *
|
|
AcpiTbUninstallTable (
|
|
ACPI_TABLE_DESC *TableDesc)
|
|
{
|
|
ACPI_TABLE_DESC *NextDesc;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("TbDeleteSingleTable", TableDesc);
|
|
|
|
|
|
if (!TableDesc)
|
|
{
|
|
return_PTR (NULL);
|
|
}
|
|
|
|
|
|
/* Unlink the descriptor */
|
|
|
|
if (TableDesc->Prev)
|
|
{
|
|
TableDesc->Prev->Next = TableDesc->Next;
|
|
}
|
|
|
|
if (TableDesc->Next)
|
|
{
|
|
TableDesc->Next->Prev = TableDesc->Prev;
|
|
}
|
|
|
|
|
|
/* Free the memory allocated for the table itself */
|
|
|
|
AcpiTbDeleteSingleTable (TableDesc);
|
|
|
|
|
|
/* Free the table descriptor (Don't delete the list head, tho) */
|
|
|
|
if ((TableDesc->Prev) == (TableDesc->Next))
|
|
{
|
|
|
|
NextDesc = NULL;
|
|
|
|
/* Clear the list head */
|
|
|
|
TableDesc->Pointer = NULL;
|
|
TableDesc->Length = 0;
|
|
TableDesc->Count = 0;
|
|
|
|
}
|
|
|
|
else
|
|
{
|
|
/* Free the table descriptor */
|
|
|
|
NextDesc = TableDesc->Next;
|
|
AcpiCmFree (TableDesc);
|
|
}
|
|
|
|
|
|
return_PTR (NextDesc);
|
|
}
|
|
|
|
|