FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/components/utilities/utxfinit.c

     /******************************************************************************
      *
      * Module Name: utxfinit - External interfaces for ACPICA initialization
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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/acevents.h>
   #include <contrib/dev/acpica/include/acnamesp.h>
   #include <contrib/dev/acpica/include/acdebug.h>
   #include <contrib/dev/acpica/include/actables.h>
   
   #define _COMPONENT          ACPI_UTILITIES
           ACPI_MODULE_NAME    ("utxfinit")
   
   /* For AcpiExec only */
   void
   AeDoObjectOverrides (
       void);
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiInitializeSubsystem
    *
    * PARAMETERS:  None
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Initializes all global variables. This is the first function
    *              called, so any early initialization belongs here.
    *
    ******************************************************************************/
   
   ACPI_STATUS ACPI_INIT_FUNCTION
   AcpiInitializeSubsystem (
       void)
   {
       ACPI_STATUS             Status;
   
   
       ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem);
   
   
       AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE;
       ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
   
       /* Initialize the OS-Dependent layer */
   
       Status = AcpiOsInitialize ();
       if (ACPI_FAILURE (Status))
       {
           ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization"));
           return_ACPI_STATUS (Status);
       }
   
       /* Initialize all globals used by the subsystem */
   
       Status = AcpiUtInitGlobals ();
       if (ACPI_FAILURE (Status))
       {
           ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals"));
           return_ACPI_STATUS (Status);
       }
   
       /* Create the default mutex objects */
   
       Status = AcpiUtMutexInitialize ();
       if (ACPI_FAILURE (Status))
       {
           ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation"));
           return_ACPI_STATUS (Status);
       }
   
       /*
        * Initialize the namespace manager and
        * the root of the namespace tree
        */
       Status = AcpiNsRootInitialize ();
       if (ACPI_FAILURE (Status))
       {
           ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization"));
           return_ACPI_STATUS (Status);
       }
   
       /* Initialize the global OSI interfaces list with the static names */
   
       Status = AcpiUtInitializeInterfaces ();
       if (ACPI_FAILURE (Status))
       {
           ACPI_EXCEPTION ((AE_INFO, Status, "During OSI interfaces initialization"));
           return_ACPI_STATUS (Status);
       }
   
       return_ACPI_STATUS (AE_OK);
   }
   
   ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeSubsystem)
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiEnableSubsystem
    *
    * PARAMETERS:  Flags               - Init/enable Options
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Completes the subsystem initialization including hardware.
    *              Puts system into ACPI mode if it isn't already.
    *
    ******************************************************************************/
   
   ACPI_STATUS ACPI_INIT_FUNCTION
   AcpiEnableSubsystem (
       UINT32                  Flags)
   {
       ACPI_STATUS             Status = AE_OK;
   
   
       ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
   
   
       /*
        * The early initialization phase is complete. The namespace is loaded,
        * and we can now support address spaces other than Memory, I/O, and
        * PCI_Config.
        */
       AcpiGbl_EarlyInitialization = FALSE;
   
   #if (!ACPI_REDUCED_HARDWARE)
   
       /* Enable ACPI mode */
   
       if (!(Flags & ACPI_NO_ACPI_ENABLE))
       {
           ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
   
           AcpiGbl_OriginalMode = AcpiHwGetMode();
   
           Status = AcpiEnable ();
           if (ACPI_FAILURE (Status))
           {
               ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
               return_ACPI_STATUS (Status);
           }
       }
   
       /*
        * Obtain a permanent mapping for the FACS. This is required for the
        * Global Lock and the Firmware Waking Vector
        */
       if (!(Flags & ACPI_NO_FACS_INIT))
       {
           Status = AcpiTbInitializeFacs ();
           if (ACPI_FAILURE (Status))
           {
               ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
               return_ACPI_STATUS (Status);
           }
       }
   
       /*
        * Initialize ACPI Event handling (Fixed and General Purpose)
        *
        * Note1: We must have the hardware and events initialized before we can
        * execute any control methods safely. Any control method can require
        * ACPI hardware support, so the hardware must be fully initialized before
        * any method execution!
        *
        * Note2: Fixed events are initialized and enabled here. GPEs are
        * initialized, but cannot be enabled until after the hardware is
        * completely initialized (SCI and GlobalLock activated) and the various
        * initialization control methods are run (_REG, _STA, _INI) on the
        * entire namespace.
        */
       if (!(Flags & ACPI_NO_EVENT_INIT))
       {
           ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
               "[Init] Initializing ACPI events\n"));
   
           Status = AcpiEvInitializeEvents ();
           if (ACPI_FAILURE (Status))
           {
               return_ACPI_STATUS (Status);
           }
       }
   
       /*
        * Install the SCI handler and Global Lock handler. This completes the
        * hardware initialization.
        */
       if (!(Flags & ACPI_NO_HANDLER_INIT))
       {
           ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
               "[Init] Installing SCI/GL handlers\n"));
   
           Status = AcpiEvInstallXruptHandlers ();
           if (ACPI_FAILURE (Status))
           {
               return_ACPI_STATUS (Status);
           }
       }
   
   #endif /* !ACPI_REDUCED_HARDWARE */
   
       return_ACPI_STATUS (Status);
   }
   
   ACPI_EXPORT_SYMBOL_INIT (AcpiEnableSubsystem)
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiInitializeObjects
    *
    * PARAMETERS:  Flags               - Init/enable Options
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Completes namespace initialization by initializing device
    *              objects and executing AML code for Regions, buffers, etc.
    *
    ******************************************************************************/
   
   ACPI_STATUS ACPI_INIT_FUNCTION
   AcpiInitializeObjects (
       UINT32                  Flags)
   {
       ACPI_STATUS             Status = AE_OK;
   
   
       ACPI_FUNCTION_TRACE (AcpiInitializeObjects);
   
   
   #ifdef ACPI_OBSOLETE_BEHAVIOR
       /*
        * 05/2019: Removed, initialization now happens at both object
        * creation and table load time
        */
   
       /*
        * Initialize the objects that remain uninitialized. This
        * runs the executable AML that may be part of the
        * declaration of these objects: OperationRegions, BufferFields,
        * BankFields, Buffers, and Packages.
        */
       if (!(Flags & ACPI_NO_OBJECT_INIT))
       {
           Status = AcpiNsInitializeObjects ();
           if (ACPI_FAILURE (Status))
           {
               return_ACPI_STATUS (Status);
           }
       }
   #endif
   
       /*
        * Initialize all device/region objects in the namespace. This runs
        * the device _STA and _INI methods and region _REG methods.
        */
       if (!(Flags & (ACPI_NO_DEVICE_INIT | ACPI_NO_ADDRESS_SPACE_INIT)))
       {
           Status = AcpiNsInitializeDevices (Flags);
           if (ACPI_FAILURE (Status))
           {
               return_ACPI_STATUS (Status);
           }
       }
   
       /*
        * Empty the caches (delete the cached objects) on the assumption that
        * the table load filled them up more than they will be at runtime --
        * thus wasting non-paged memory.
        */
       Status = AcpiPurgeCachedObjects ();
   
       AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK;
       return_ACPI_STATUS (Status);
   }
   
   ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeObjects)

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