utglobal.c

xen虚拟机源代码安装包

	return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_get_event_name
 *
 * PARAMETERS:  None.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
 *
 ******************************************************************************/

/* Event type decoding */

static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
	"PM_Timer",
	"GlobalLock",
	"PowerButton",
	"SleepButton",
	"RealTimeClock",
};

char *acpi_ut_get_event_name(u32 event_id)
{

	if (event_id > ACPI_EVENT_MAX) {
		return ("InvalidEventID");
	}

	return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_get_type_name
 *
 * PARAMETERS:  None.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
 *
 ******************************************************************************/

/*
 * Elements of acpi_gbl_ns_type_names below must match
 * one-to-one with values of acpi_object_type
 *
 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
 * when stored in a table it really means that we have thus far seen no
 * evidence to indicate what type is actually going to be stored for this entry.
 */
static const char acpi_gbl_bad_type[] = "UNDEFINED";

/* Printable names of the ACPI object types */

static const char *acpi_gbl_ns_type_names[] = {
	/* 00 */ "Untyped",
	/* 01 */ "Integer",
	/* 02 */ "String",
	/* 03 */ "Buffer",
	/* 04 */ "Package",
	/* 05 */ "FieldUnit",
	/* 06 */ "Device",
	/* 07 */ "Event",
	/* 08 */ "Method",
	/* 09 */ "Mutex",
	/* 10 */ "Region",
	/* 11 */ "Power",
	/* 12 */ "Processor",
	/* 13 */ "Thermal",
	/* 14 */ "BufferField",
	/* 15 */ "DdbHandle",
	/* 16 */ "DebugObject",
	/* 17 */ "RegionField",
	/* 18 */ "BankField",
	/* 19 */ "IndexField",
	/* 20 */ "Reference",
	/* 21 */ "Alias",
	/* 22 */ "MethodAlias",
	/* 23 */ "Notify",
	/* 24 */ "AddrHandler",
	/* 25 */ "ResourceDesc",
	/* 26 */ "ResourceFld",
	/* 27 */ "Scope",
	/* 28 */ "Extra",
	/* 29 */ "Data",
	/* 30 */ "Invalid"
};

char *acpi_ut_get_type_name(acpi_object_type type)
{

	if (type > ACPI_TYPE_INVALID) {
		return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
	}

	return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
}

char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
{

	if (!obj_desc) {
		return ("[NULL Object Descriptor]");
	}

	return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_get_descriptor_name
 *
 * PARAMETERS:  Object               - An ACPI object
 *
 * RETURN:      Pointer to a string
 *
 * DESCRIPTION: Validate object and return the descriptor type
 *
 ******************************************************************************/

/* Printable names of object descriptor types */

static const char *acpi_gbl_desc_type_names[] = {
	/* 00 */ "Invalid",
	/* 01 */ "Cached",
	/* 02 */ "State-Generic",
	/* 03 */ "State-Update",
	/* 04 */ "State-Package",
	/* 05 */ "State-Control",
	/* 06 */ "State-RootParseScope",
	/* 07 */ "State-ParseScope",
	/* 08 */ "State-WalkScope",
	/* 09 */ "State-Result",
	/* 10 */ "State-Notify",
	/* 11 */ "State-Thread",
	/* 12 */ "Walk",
	/* 13 */ "Parser",
	/* 14 */ "Operand",
	/* 15 */ "Node"
};

char *acpi_ut_get_descriptor_name(void *object)
{

	if (!object) {
		return ("NULL OBJECT");
	}

	if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
		return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
	}

	return (ACPI_CAST_PTR(char,
			      acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
						       (object)]));

}

#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
/*
 * Strings and procedures used for debug only
 */

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_get_mutex_name
 *
 * PARAMETERS:  mutex_id        - The predefined ID for this mutex.
 *
 * RETURN:      String containing the name of the mutex. Always returns a valid
 *              pointer.
 *
 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
 *
 ******************************************************************************/

char *acpi_ut_get_mutex_name(u32 mutex_id)
{

	if (mutex_id > ACPI_MAX_MUTEX) {
		return ("Invalid Mutex ID");
	}

	return (acpi_gbl_mutex_names[mutex_id]);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_get_notify_name
 *
 * PARAMETERS:  notify_value    - Value from the Notify() request
 *
 * RETURN:      String corresponding to the Notify Value.
 *
 * DESCRIPTION: Translate a Notify Value to a notify namestring.
 *
 ******************************************************************************/

/* Names for Notify() values, used for debug output */

static const char *acpi_gbl_notify_value_names[] = {
	"Bus Check",
	"Device Check",
	"Device Wake",
	"Eject Request",
	"Device Check Light",
	"Frequency Mismatch",
	"Bus Mode Mismatch",
	"Power Fault",
	"Capabilities Check",
	"Device PLD Check",
	"Reserved",
	"System Locality Update"
};

const char *acpi_ut_get_notify_name(u32 notify_value)
{

	if (notify_value <= ACPI_NOTIFY_MAX) {
		return (acpi_gbl_notify_value_names[notify_value]);
	} else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
		return ("Reserved");
	} else {		/* Greater or equal to 0x80 */

		return ("**Device Specific**");
	}
}
#endif

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_valid_object_type
 *
 * PARAMETERS:  Type            - Object type to be validated
 *
 * RETURN:      TRUE if valid object type, FALSE otherwise
 *
 * DESCRIPTION: Validate an object type
 *
 ******************************************************************************/

u8 acpi_ut_valid_object_type(acpi_object_type type)
{

	if (type > ACPI_TYPE_LOCAL_MAX) {

		/* Note: Assumes all TYPEs are contiguous (external/local) */

		return (FALSE);
	}

	return (TRUE);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ut_init_globals
 *
 * PARAMETERS:  None
 *
 * RETURN:      None
 *
 * DESCRIPTION: Init library globals.  All globals that require specific
 *              initialization should be initialized here!
 *
 ******************************************************************************/

void acpi_ut_init_globals(void)
{
#if 0
	acpi_status status;
#endif
	u32 i;

	ACPI_FUNCTION_TRACE(ut_init_globals);

#if 0
	/* Create all memory caches */

	status = acpi_ut_create_caches();
	if (ACPI_FAILURE(status)) {
		return;
	}
#endif

	/* Mutex locked flags */

	for (i = 0; i < ACPI_NUM_MUTEX; i++) {
		acpi_gbl_mutex_info[i].mutex = NULL;
		acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
		acpi_gbl_mutex_info[i].use_count = 0;
	}

	for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
		acpi_gbl_owner_id_mask[i] = 0;
	}
	acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;	/* Last ID is never valid */

	/* GPE support */

	acpi_gbl_gpe_xrupt_list_head = NULL;
	acpi_gbl_gpe_fadt_blocks[0] = NULL;
	acpi_gbl_gpe_fadt_blocks[1] = NULL;

	/* Global handlers */

	acpi_gbl_system_notify.handler = NULL;
	acpi_gbl_device_notify.handler = NULL;
	acpi_gbl_exception_handler = NULL;
	acpi_gbl_init_handler = NULL;
	/*acpi_gbl_table_handler = NULL;*/

	/* Global Lock support */

	acpi_gbl_global_lock_semaphore = NULL;
	acpi_gbl_global_lock_mutex = NULL;
	acpi_gbl_global_lock_acquired = FALSE;
	acpi_gbl_global_lock_handle = 0;

	/* Miscellaneous variables */

	acpi_gbl_cm_single_step = FALSE;
	acpi_gbl_db_terminate_threads = FALSE;
	acpi_gbl_shutdown = FALSE;
	acpi_gbl_ns_lookup_count = 0;
	acpi_gbl_ps_find_count = 0;
	acpi_gbl_acpi_hardware_present = TRUE;
	acpi_gbl_last_owner_id_index = 0;
	acpi_gbl_next_owner_id_offset = 0;
	acpi_gbl_trace_method_name = 0;
	acpi_gbl_trace_dbg_level = 0;
	acpi_gbl_trace_dbg_layer = 0;
	acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
	acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;

	/* Hardware oriented */

	acpi_gbl_events_initialized = FALSE;
	acpi_gbl_system_awake_and_running = TRUE;

	/* Namespace */

	acpi_gbl_root_node = NULL;
	acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
	acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
	acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
	acpi_gbl_root_node_struct.child = NULL;
	acpi_gbl_root_node_struct.peer = NULL;
	acpi_gbl_root_node_struct.object = NULL;
	acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;

#ifdef ACPI_DEBUG_OUTPUT
	acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
#endif

#ifdef ACPI_DBG_TRACK_ALLOCATIONS
	acpi_gbl_display_final_mem_stats = FALSE;
#endif

	return_VOID;
}

ACPI_EXPORT_SYMBOL(acpi_dbg_level)
    ACPI_EXPORT_SYMBOL(acpi_dbg_layer)