diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/tables/tbxfload.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/tables/tbxfload.c | 631 |
1 files changed, 631 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/tables/tbxfload.c b/sys/contrib/dev/acpica/components/tables/tbxfload.c new file mode 100644 index 000000000000..4a24be17f558 --- /dev/null +++ b/sys/contrib/dev/acpica/components/tables/tbxfload.c @@ -0,0 +1,631 @@ +/****************************************************************************** + * + * 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) |