Exemplo n.º 1
0
acpi_status acpi_initialize_objects(u32 flags)
{
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE("acpi_initialize_objects");

	/*
	 * Run all _REG methods
	 *
	 * NOTE: Any objects accessed
	 * by the _REG methods will be automatically initialized, even if they
	 * contain executable AML (see call to acpi_ns_initialize_objects below).
	 */
	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Executing _REG op_region methods\n"));

		status = acpi_ev_initialize_op_regions();
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/*
	 * Initialize the objects that remain uninitialized.  This
	 * runs the executable AML that may be part of the declaration of these
	 * objects: operation_regions, buffer_fields, Buffers, and Packages.
	 */
	if (!(flags & ACPI_NO_OBJECT_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Completing Initialization of ACPI Objects\n"));

		status = acpi_ns_initialize_objects();
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/*
	 * Initialize all device objects in the namespace
	 * This runs the _STA and _INI methods.
	 */
	if (!(flags & ACPI_NO_DEVICE_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Initializing ACPI Devices\n"));

		status = acpi_ns_initialize_devices();
		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 = acpi_purge_cached_objects();

	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
	return_ACPI_STATUS(status);
}
Exemplo n.º 2
0
/*******************************************************************************
 *
 * FUNCTION:    acpi_initialize_objects
 *
 * 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_initialize_objects(u32 flags)
{
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE(acpi_initialize_objects);

	/*
	 * Run all _REG methods
	 *
	 * Note: Any objects accessed by the _REG methods will be automatically
	 * initialized, even if they contain executable AML (see the call to
	 * acpi_ns_initialize_objects below).
	 */
	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Executing _REG OpRegion methods\n"));

		status = acpi_ev_initialize_op_regions();
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/*
	 * Execute any module-level code that was detected during the table load
	 * phase. Although illegal since ACPI 2.0, there are many machines that
	 * contain this type of code. Each block of detected executable AML code
	 * outside of any control method is wrapped with a temporary control
	 * method object and placed on a global list. The methods on this list
	 * are executed below.
	 */
	acpi_ns_exec_module_code_list();

	/*
	 * Initialize the objects that remain uninitialized. This runs the
	 * executable AML that may be part of the declaration of these objects:
	 * operation_regions, buffer_fields, Buffers, and Packages.
	 */
	if (!(flags & ACPI_NO_OBJECT_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Completing Initialization of ACPI Objects\n"));

		status = acpi_ns_initialize_objects();
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/*
	 * Initialize all device objects in the namespace. This runs the device
	 * _STA and _INI methods.
	 */
	if (!(flags & ACPI_NO_DEVICE_INIT)) {
		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
				  "[Init] Initializing ACPI Devices\n"));

		status = acpi_ns_initialize_devices();
		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 = acpi_purge_cached_objects();

	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
	return_ACPI_STATUS(status);
}
Exemplo n.º 3
0
/*******************************************************************************
 *
 * FUNCTION:    acpi_initialize_objects
 *
 * 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 acpi_initialize_objects(u32 flags)
{
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE(acpi_initialize_objects);

#ifdef ACPI_EXEC_APP
	/*
	 * This call implements the "initialization file" option for acpi_exec.
	 * This is the precise point that we want to perform the overrides.
	 */
	ae_do_object_overrides();
#endif

	/*
	 * Execute any module-level code that was detected during the table load
	 * phase. Although illegal since ACPI 2.0, there are many machines that
	 * contain this type of code. Each block of detected executable AML code
	 * outside of any control method is wrapped with a temporary control
	 * method object and placed on a global list. The methods on this list
	 * are executed below.
	 *
	 * This case executes the module-level code for all tables only after
	 * all of the tables have been loaded. It is a legacy option and is
	 * not compatible with other ACPI implementations. See acpi_ns_load_table.
	 */
	if (acpi_gbl_group_module_level_code) {
		acpi_ns_exec_module_code_list();

		/*
		 * Initialize the objects that remain uninitialized. This
		 * runs the executable AML that may be part of the
		 * declaration of these objects:
		 * operation_regions, buffer_fields, Buffers, and Packages.
		 */
		if (!(flags & ACPI_NO_OBJECT_INIT)) {
			status = acpi_ns_initialize_objects();
			if (ACPI_FAILURE(status)) {
				return_ACPI_STATUS(status);
			}
		}
	}

	/*
	 * 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 = acpi_ns_initialize_devices(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 = acpi_purge_cached_objects();

	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
	return_ACPI_STATUS(status);
}