utxfinit.c File Reference

#include "acpi.h"
#include "accommon.h"
#include "acevents.h"
#include "acnamesp.h"
#include "acdebug.h"
#include "actables.h"

Include dependency graph for utxfinit.c:

Go to the source code of this file.

Macros
#define	EXPORT_ACPI_INTERFACES
#define	_COMPONENT   ACPI_UTILITIES

Functions
void	AeDoObjectOverrides (void)
ACPI_STATUS ACPI_INIT_FUNCTION	AcpiInitializeSubsystem (void)
ACPI_STATUS ACPI_INIT_FUNCTION	AcpiEnableSubsystem (UINT32 Flags)
ACPI_STATUS ACPI_INIT_FUNCTION	AcpiInitializeObjects (UINT32 Flags)

Macro Definition Documentation

_COMPONENT

#define _COMPONENT   ACPI_UTILITIES

Definition at line 53 of file utxfinit.c.

EXPORT_ACPI_INTERFACES

#define EXPORT_ACPI_INTERFACES

Definition at line 44 of file utxfinit.c.

Function Documentation

AcpiEnableSubsystem()

ACPI_STATUS ACPI_INIT_FUNCTION AcpiEnableSubsystem

(

UINT32

Flags

)

Definition at line 155 of file utxfinit.c.

{
    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);
}

Referenced by acpi_bus_init(), and AcpiEnableSubsystem().

AcpiInitializeObjects()

ACPI_STATUS ACPI_INIT_FUNCTION AcpiInitializeObjects

(

UINT32

Flags

)

Definition at line 267 of file utxfinit.c.

{
    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);
}

Referenced by acpi_bus_init(), and AcpiInitializeObjects().

AcpiInitializeSubsystem()

ACPI_STATUS ACPI_INIT_FUNCTION AcpiInitializeSubsystem

(

void

)

Definition at line 76 of file utxfinit.c.

{
    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);
}

Referenced by AcpiInitializeSubsystem(), and Bus_StartFdo().

AeDoObjectOverrides()

void AeDoObjectOverrides

(

void

)