linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/******************************************************************************

 *

 * Module Name: tbxfload - Table load/unload external interfaces

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

 *****************************************************************************/

​

#define EXPORT_ACPI_INTERFACES

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acnamesp.h"

#include "actables.h"

#include "acevents.h"

​

#define _COMPONENT          ACPI_TABLES

ACPI_MODULE_NAME("tbxfload")

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_load_tables

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT

 *

 ******************************************************************************/

acpi_status ACPI_INIT_FUNCTION acpi_load_tables(void)

{

    acpi_status status;

​

    ACPI_FUNCTION_TRACE(acpi_load_tables);

​

    /*

     * Install the default operation region handlers. These are the

     * handlers that are defined by the ACPI specification to be

     * "always accessible" -- namely, system_memory, system_IO, 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 acpi_initialize_subsystem() and acpi_load_tables() to use

     * their customized default region handlers.

     */

    status = acpi_ev_install_region_handlers();

    if (ACPI_FAILURE(status)) {

        ACPI_EXCEPTION((AE_INFO, status,

                "During Region initialization"));

        return_ACPI_STATUS(status);

    }

​

    /* Load the namespace from the tables */

​

    status = acpi_tb_load_namespace();

​

    /* 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:

     *     operation_regions, buffer_fields, Buffers, and Packages.

     *

     */

    status = acpi_ns_initialize_objects();

    if (ACPI_SUCCESS(status)) {

        acpi_gbl_namespace_initialized = TRUE;

    }

​

    return_ACPI_STATUS(status);

}

​

ACPI_EXPORT_SYMBOL_INIT(acpi_load_tables)

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_tb_load_namespace

 *