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f-stack/freebsd/contrib/dev/acpica/components/tables/tbxfload.c

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/******************************************************************************
*
* Module Name: tbxfload - Table load/unload external interfaces
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2020, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************
*
* Alternatively, you may choose to be licensed under the terms of the
* following license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Alternatively, you may choose to be licensed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
*****************************************************************************/
#define EXPORT_ACPI_INTERFACES
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <contrib/dev/acpica/include/acnamesp.h>
#include <contrib/dev/acpica/include/actables.h>
#include <contrib/dev/acpica/include/acevents.h>
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME ("tbxfload")
/*******************************************************************************
*
* FUNCTION: AcpiLoadTables
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
*
******************************************************************************/
ACPI_STATUS ACPI_INIT_FUNCTION
AcpiLoadTables (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiLoadTables);
/*
* Install the default operation region handlers. These are the
* handlers that are defined by the ACPI specification to be
* "always accessible" -- namely, SystemMemory, SystemIO, and
* PCI_Config. This also means that no _REG methods need to be
* run for these address spaces. We need to have these handlers
* installed before any AML code can be executed, especially any
* module-level code (11/2015).
* Note that we allow OSPMs to install their own region handlers
* between AcpiInitializeSubsystem() and AcpiLoadTables() to use
* their customized default region handlers.
*/
Status = AcpiEvInstallRegionHandlers ();
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "During Region initialization"));
return_ACPI_STATUS (Status);
}
/* Load the namespace from the tables */
Status = AcpiTbLoadNamespace ();
/* Don't let single failures abort the load */
if (Status == AE_CTRL_TERMINATE)
{
Status = AE_OK;
}
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"While loading namespace from ACPI tables"));
}
/*
* Initialize the objects in the namespace that remain uninitialized.
* This runs the executable AML that may be part of the declaration of
* these name objects:
* OperationRegions, BufferFields, Buffers, and Packages.
*
*/
Status = AcpiNsInitializeObjects ();
if (ACPI_SUCCESS (Status))
{
AcpiGbl_NamespaceInitialized = TRUE;
}
return_ACPI_STATUS (Status);
}
ACPI_EXPORT_SYMBOL_INIT (AcpiLoadTables)
/*******************************************************************************
*
* FUNCTION: AcpiTbLoadNamespace
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
* the RSDT/XSDT.
*
******************************************************************************/
ACPI_STATUS
AcpiTbLoadNamespace (
void)
{
ACPI_STATUS Status;
UINT32 i;
ACPI_TABLE_HEADER *NewDsdt;
ACPI_TABLE_DESC *Table;
UINT32 TablesLoaded = 0;
UINT32 TablesFailed = 0;
ACPI_FUNCTION_TRACE (TbLoadNamespace);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/*
* Load the namespace. The DSDT is required, but any SSDT and
* PSDT tables are optional. Verify the DSDT.
*/
Table = &AcpiGbl_RootTableList.Tables[AcpiGbl_DsdtIndex];
if (!AcpiGbl_RootTableList.CurrentTableCount ||
!ACPI_COMPARE_NAMESEG (Table->Signature.Ascii, ACPI_SIG_DSDT) ||
ACPI_FAILURE (AcpiTbValidateTable (Table)))
{
Status = AE_NO_ACPI_TABLES;
goto UnlockAndExit;
}
/*
* Save the DSDT pointer for simple access. This is the mapped memory
* address. We must take care here because the address of the .Tables
* array can change dynamically as tables are loaded at run-time. Note:
* .Pointer field is not validated until after call to AcpiTbValidateTable.
*/
AcpiGbl_DSDT = Table->Pointer;
/*
* Optionally copy the entire DSDT to local memory (instead of simply
* mapping it.) There are some BIOSs that corrupt or replace the original
* DSDT, creating the need for this option. Default is FALSE, do not copy
* the DSDT.
*/
if (AcpiGbl_CopyDsdtLocally)
{
NewDsdt = AcpiTbCopyDsdt (AcpiGbl_DsdtIndex);
if (NewDsdt)
{
AcpiGbl_DSDT = NewDsdt;
}
}
/*
* Save the original DSDT header for detection of table corruption
* and/or replacement of the DSDT from outside the OS.
*/
memcpy (&AcpiGbl_OriginalDsdtHeader, AcpiGbl_DSDT,
sizeof (ACPI_TABLE_HEADER));
/* Load and parse tables */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
Status = AcpiNsLoadTable (AcpiGbl_DsdtIndex, AcpiGbl_RootNode);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "[DSDT] table load failed"));
TablesFailed++;
}
else
{
TablesLoaded++;
}
/* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
Table = &AcpiGbl_RootTableList.Tables[i];
if (!Table->Address ||
(!ACPI_COMPARE_NAMESEG (Table->Signature.Ascii, ACPI_SIG_SSDT) &&
!ACPI_COMPARE_NAMESEG (Table->Signature.Ascii, ACPI_SIG_PSDT) &&
!ACPI_COMPARE_NAMESEG (Table->Signature.Ascii, ACPI_SIG_OSDT)) ||
ACPI_FAILURE (AcpiTbValidateTable (Table)))
{
continue;
}
/* Ignore errors while loading tables, get as many as possible */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
Status = AcpiNsLoadTable (i, AcpiGbl_RootNode);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "(%4.4s:%8.8s) while loading table",
Table->Signature.Ascii, Table->Pointer->OemTableId));
TablesFailed++;
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"Table [%4.4s:%8.8s] (id FF) - Table namespace load failed\n\n",
Table->Signature.Ascii, Table->Pointer->OemTableId));
}
else
{
TablesLoaded++;
}
}
if (!TablesFailed)
{
ACPI_INFO ((
"%u ACPI AML tables successfully acquired and loaded",
TablesLoaded));
}
else
{
ACPI_ERROR ((AE_INFO,
"%u table load failures, %u successful",
TablesFailed, TablesLoaded));
/* Indicate at least one failure */
Status = AE_CTRL_TERMINATE;
}
#ifdef ACPI_APPLICATION
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "\n"));
#endif
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiInstallTable
*
* PARAMETERS: Address - Address of the ACPI table to be installed.
* Physical - Whether the address is a physical table
* address or not
*
* RETURN: Status
*
* DESCRIPTION: Dynamically install an ACPI table.
* Note: This function should only be invoked after
* AcpiInitializeTables() and before AcpiLoadTables().
*
******************************************************************************/
ACPI_STATUS ACPI_INIT_FUNCTION
AcpiInstallTable (
ACPI_PHYSICAL_ADDRESS Address,
BOOLEAN Physical)
{
ACPI_STATUS Status;
UINT8 Flags;
UINT32 TableIndex;
ACPI_FUNCTION_TRACE (AcpiInstallTable);
if (Physical)
{
Flags = ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL;
}
else
{
Flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL;
}
Status = AcpiTbInstallStandardTable (Address, Flags,
FALSE, FALSE, &TableIndex);
return_ACPI_STATUS (Status);
}
ACPI_EXPORT_SYMBOL_INIT (AcpiInstallTable)
/*******************************************************************************
*
* FUNCTION: AcpiLoadTable
*
* PARAMETERS: Table - Pointer to a buffer containing the ACPI
* table to be loaded.
* TableIdx - Pointer to a UINT32 for storing the table
* index, might be NULL
*
* RETURN: Status
*
* DESCRIPTION: Dynamically load an ACPI table from the caller's buffer. Must
* be a valid ACPI table with a valid ACPI table header.
* Note1: Mainly intended to support hotplug addition of SSDTs.
* Note2: Does not copy the incoming table. User is responsible
* to ensure that the table is not deleted or unmapped.
*
******************************************************************************/
ACPI_STATUS
AcpiLoadTable (
ACPI_TABLE_HEADER *Table,
UINT32 *TableIdx)
{
ACPI_STATUS Status;
UINT32 TableIndex;
ACPI_FUNCTION_TRACE (AcpiLoadTable);
/* Parameter validation */
if (!Table)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Install the table and load it into the namespace */
ACPI_INFO (("Host-directed Dynamic ACPI Table Load:"));
Status = AcpiTbInstallAndLoadTable (ACPI_PTR_TO_PHYSADDR (Table),
ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &TableIndex);
if (TableIdx)
{
*TableIdx = TableIndex;
}
if (ACPI_SUCCESS (Status))
{
/* Complete the initialization/resolution of new objects */
AcpiNsInitializeObjects ();
}
return_ACPI_STATUS (Status);
}
ACPI_EXPORT_SYMBOL (AcpiLoadTable)
/*******************************************************************************
*
* FUNCTION: AcpiUnloadParentTable
*
* PARAMETERS: Object - Handle to any namespace object owned by
* the table to be unloaded
*
* RETURN: Status
*
* DESCRIPTION: Via any namespace object within an SSDT or OEMx table, unloads
* the table and deletes all namespace objects associated with
* that table. Unloading of the DSDT is not allowed.
* Note: Mainly intended to support hotplug removal of SSDTs.
*
******************************************************************************/
ACPI_STATUS
AcpiUnloadParentTable (
ACPI_HANDLE Object)
{
ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Object);
ACPI_STATUS Status = AE_NOT_EXIST;
ACPI_OWNER_ID OwnerId;
UINT32 i;
ACPI_FUNCTION_TRACE (AcpiUnloadParentTable);
/* Parameter validation */
if (!Object)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/*
* The node OwnerId is currently the same as the parent table ID.
* However, this could change in the future.
*/
OwnerId = Node->OwnerId;
if (!OwnerId)
{
/* OwnerId==0 means DSDT is the owner. DSDT cannot be unloaded */
return_ACPI_STATUS (AE_TYPE);
}
/* Must acquire the table lock during this operation */
Status = AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Find the table in the global table list */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
{
if (OwnerId != AcpiGbl_RootTableList.Tables[i].OwnerId)
{
continue;
}
/*
* Allow unload of SSDT and OEMx tables only. Do not allow unload
* of the DSDT. No other types of tables should get here, since
* only these types can contain AML and thus are the only types
* that can create namespace objects.
*/
if (ACPI_COMPARE_NAMESEG (
AcpiGbl_RootTableList.Tables[i].Signature.Ascii,
ACPI_SIG_DSDT))
{
Status = AE_TYPE;
break;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
Status = AcpiTbUnloadTable (i);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
break;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
ACPI_EXPORT_SYMBOL (AcpiUnloadParentTable)
/*******************************************************************************
*
* FUNCTION: AcpiUnloadTable
*
* PARAMETERS: TableIndex - Index as returned by AcpiLoadTable
*
* RETURN: Status
*
* DESCRIPTION: Via the TableIndex representing an SSDT or OEMx table, unloads
* the table and deletes all namespace objects associated with
* that table. Unloading of the DSDT is not allowed.
* Note: Mainly intended to support hotplug removal of SSDTs.
*
******************************************************************************/
ACPI_STATUS
AcpiUnloadTable (
UINT32 TableIndex)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiUnloadTable);
if (TableIndex == 1)
{
/* TableIndex==1 means DSDT is the owner. DSDT cannot be unloaded */
return_ACPI_STATUS (AE_TYPE);
}
Status = AcpiTbUnloadTable (TableIndex);
return_ACPI_STATUS (Status);
}
ACPI_EXPORT_SYMBOL (AcpiUnloadTable)
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