Beispiel #1
0
acpi_status
acpi_ns_search_one_scope(u32 target_name,
			 struct acpi_namespace_node *parent_node,
			 acpi_object_type type,
			 struct acpi_namespace_node **return_node)
{
	struct acpi_namespace_node *node;

	ACPI_FUNCTION_TRACE(ns_search_one_scope);

#ifdef ACPI_DEBUG_OUTPUT
	if (ACPI_LV_NAMES & acpi_dbg_level) {
		char *scope_name;

		scope_name = acpi_ns_get_normalized_pathname(parent_node, TRUE);
		if (scope_name) {
			ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
					  "Searching %s (%p) For [%4.4s] (%s)\n",
					  scope_name, parent_node,
					  ACPI_CAST_PTR(char, &target_name),
					  acpi_ut_get_type_name(type)));

			ACPI_FREE(scope_name);
		}
	}
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_get_external_pathname
 *
 * PARAMETERS:  node            - Namespace node whose pathname is needed
 *
 * RETURN:      Pointer to storage containing the fully qualified name of
 *              the node, In external format (name segments separated by path
 *              separators.)
 *
 * DESCRIPTION: Used to obtain the full pathname to a namespace node, usually
 *              for error and debug statements.
 *
 ******************************************************************************/
char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
{
	char *name_buffer;

	ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);

	name_buffer = acpi_ns_get_normalized_pathname(node, FALSE);
	return_PTR(name_buffer);
}
Beispiel #3
0
void
acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
			  union acpi_operand_object *obj_desc,
			  struct acpi_walk_state *walk_state)
{
	acpi_status status;
	char *pathname = NULL;
	u8 enabled;

	ACPI_FUNCTION_NAME(ex_stop_trace_method);

	if (method_node) {
		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
	}

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		goto exit_path;
	}

	enabled = acpi_ex_interpreter_trace_enabled(NULL);

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

	if (enabled) {
		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
				 obj_desc ? obj_desc->method.aml_start : NULL,
				 pathname);
	}

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		goto exit_path;
	}

	/* Check whether the tracer should be stopped */

	if (acpi_gbl_trace_method_object == obj_desc) {

		/* Disable further tracing if type is one-shot */

		if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
			acpi_gbl_trace_method_name = NULL;
		}

		acpi_dbg_level = acpi_gbl_original_dbg_level;
		acpi_dbg_layer = acpi_gbl_original_dbg_layer;
		acpi_gbl_trace_method_object = NULL;
	}

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

exit_path:
	if (pathname) {
		ACPI_FREE(pathname);
	}
}
Beispiel #4
0
static acpi_status
acpi_db_walk_for_predefined_names(acpi_handle obj_handle,
				  u32 nesting_level,
				  void *context, void **return_value)
{
	struct acpi_namespace_node *node =
	    (struct acpi_namespace_node *)obj_handle;
	u32 *count = (u32 *)context;
	const union acpi_predefined_info *predefined;
	const union acpi_predefined_info *package = NULL;
	char *pathname;
	char string_buffer[48];

	predefined = acpi_ut_match_predefined_method(node->name.ascii);
	if (!predefined) {
		return (AE_OK);
	}

	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
	if (!pathname) {
		return (AE_OK);
	}

	/* If method returns a package, the info is in the next table entry */

	if (predefined->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
		package = predefined + 1;
	}

	acpi_ut_get_expected_return_types(string_buffer,
					  predefined->info.expected_btypes);

	acpi_os_printf("%-32s Arguments %X, Return Types: %s", pathname,
		       METHOD_GET_ARG_COUNT(predefined->info.argument_list),
		       string_buffer);

	if (package) {
		acpi_os_printf(" (PkgType %2.2X, ObjType %2.2X, Count %2.2X)",
			       package->ret_info.type,
			       package->ret_info.object_type1,
			       package->ret_info.count1);
	}

	acpi_os_printf("\n");

	/* Check that the declared argument count matches the ACPI spec */

	acpi_ns_check_acpi_compliance(pathname, node, predefined);

	ACPI_FREE(pathname);
	(*count)++;
	return (AE_OK);
}
Beispiel #5
0
void
acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
			   union acpi_operand_object *obj_desc,
			   struct acpi_walk_state *walk_state)
{
	acpi_status status;
	char *pathname = NULL;
	u8 enabled = FALSE;

	ACPI_FUNCTION_NAME(ex_start_trace_method);

	if (method_node) {
		pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
	}

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		goto exit;
	}

	enabled = acpi_ex_interpreter_trace_enabled(pathname);
	if (enabled && !acpi_gbl_trace_method_object) {
		acpi_gbl_trace_method_object = obj_desc;
		acpi_gbl_original_dbg_level = acpi_dbg_level;
		acpi_gbl_original_dbg_layer = acpi_dbg_layer;
		acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
		acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;

		if (acpi_gbl_trace_dbg_level) {
			acpi_dbg_level = acpi_gbl_trace_dbg_level;
		}

		if (acpi_gbl_trace_dbg_layer) {
			acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
		}
	}

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

exit:
	if (enabled) {
		ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
				 obj_desc ? obj_desc->method.aml_start : NULL,
				 pathname);
	}

	if (pathname) {
		ACPI_FREE(pathname);
	}
}
Beispiel #6
0
static acpi_status
acpi_db_display_non_root_handlers(acpi_handle obj_handle,
				  u32 nesting_level,
				  void *context, void **return_value)
{
	struct acpi_namespace_node *node =
	    ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
	union acpi_operand_object *obj_desc;
	union acpi_operand_object *handler_obj;
	char *pathname;

	obj_desc = acpi_ns_get_attached_object(node);
	if (!obj_desc) {
		return (AE_OK);
	}

	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
	if (!pathname) {
		return (AE_OK);
	}

	/* Display all handlers associated with this device */

	handler_obj = obj_desc->common_notify.handler;
	while (handler_obj) {
		acpi_os_printf(ACPI_PREDEFINED_PREFIX,
			       acpi_ut_get_region_name((u8)handler_obj->
						       address_space.space_id),
			       handler_obj->address_space.space_id);

		acpi_os_printf(ACPI_HANDLER_PRESENT_STRING2,
			       (handler_obj->address_space.handler_flags &
				ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default"
			       : "User", handler_obj->address_space.handler);

		acpi_os_printf(" Device Name: %s (%p)\n", pathname, node);

		handler_obj = handler_obj->address_space.next;
	}

	ACPI_FREE(pathname);
	return (AE_OK);
}
Beispiel #7
0
static acpi_status
acpi_ns_dump_one_object_path(acpi_handle obj_handle,
			     u32 level, void *context, void **return_value)
{
	u32 max_level = *((u32 *)context);
	char *pathname;
	struct acpi_namespace_node *node;
	int path_indent;

	if (!obj_handle) {
		return (AE_OK);
	}

	node = acpi_ns_validate_handle(obj_handle);
	if (!node) {

		/* Ignore bad node during namespace walk */

		return (AE_OK);
	}

	pathname = acpi_ns_get_normalized_pathname(node, TRUE);

	path_indent = 1;
	if (level <= max_level) {
		path_indent = max_level - level + 1;
	}

	acpi_os_printf("%2d%*s%-12s%*s",
		       level, level, " ", acpi_ut_get_type_name(node->type),
		       path_indent, " ");

	acpi_os_printf("%s\n", &pathname[1]);
	ACPI_FREE(pathname);
	return (AE_OK);
}
Beispiel #8
0
static acpi_status
acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
				     u32 nesting_level,
				     void *context, void **return_value)
{
	struct acpi_namespace_node *node =
	    (struct acpi_namespace_node *)obj_handle;
	struct acpi_db_execute_walk *info =
	    (struct acpi_db_execute_walk *)context;
	char *pathname;
	const union acpi_predefined_info *predefined;
	struct acpi_device_info *obj_info;
	struct acpi_object_list param_objects;
	union acpi_object params[ACPI_METHOD_NUM_ARGS];
	union acpi_object *this_param;
	struct acpi_buffer return_obj;
	acpi_status status;
	u16 arg_type_list;
	u8 arg_count;
	u8 arg_type;
	u32 i;

	/* The name must be a predefined ACPI name */

	predefined = acpi_ut_match_predefined_method(node->name.ascii);
	if (!predefined) {
		return (AE_OK);
	}

	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
		return (AE_OK);
	}

	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
	if (!pathname) {
		return (AE_OK);
	}

	/* Get the object info for number of method parameters */

	status = acpi_get_object_info(obj_handle, &obj_info);
	if (ACPI_FAILURE(status)) {
		ACPI_FREE(pathname);
		return (status);
	}

	param_objects.count = 0;
	param_objects.pointer = NULL;

	if (obj_info->type == ACPI_TYPE_METHOD) {

		/* Setup default parameters (with proper types) */

		arg_type_list = predefined->info.argument_list;
		arg_count = METHOD_GET_ARG_COUNT(arg_type_list);

		/*
		 * Setup the ACPI-required number of arguments, regardless of what
		 * the actual method defines. If there is a difference, then the
		 * method is wrong and a warning will be issued during execution.
		 */
		this_param = params;
		for (i = 0; i < arg_count; i++) {
			arg_type = METHOD_GET_NEXT_TYPE(arg_type_list);
			this_param->type = arg_type;

			switch (arg_type) {
			case ACPI_TYPE_INTEGER:

				this_param->integer.value = 1;
				break;

			case ACPI_TYPE_STRING:

				this_param->string.pointer =
				    "This is the default argument string";
				this_param->string.length =
				    strlen(this_param->string.pointer);
				break;

			case ACPI_TYPE_BUFFER:

				this_param->buffer.pointer = (u8 *)params;	/* just a garbage buffer */
				this_param->buffer.length = 48;
				break;

			case ACPI_TYPE_PACKAGE:

				this_param->package.elements = NULL;
				this_param->package.count = 0;
				break;

			default:

				acpi_os_printf
				    ("%s: Unsupported argument type: %u\n",
				     pathname, arg_type);
				break;
			}

			this_param++;
		}

		param_objects.count = arg_count;
		param_objects.pointer = params;
	}

	ACPI_FREE(obj_info);
	return_obj.pointer = NULL;
	return_obj.length = ACPI_ALLOCATE_BUFFER;

	/* Do the actual method execution */

	acpi_gbl_method_executing = TRUE;

	status = acpi_evaluate_object(node, NULL, &param_objects, &return_obj);

	acpi_os_printf("%-32s returned %s\n",
		       pathname, acpi_format_exception(status));
	acpi_gbl_method_executing = FALSE;
	ACPI_FREE(pathname);

	/* Ignore status from method execution */

	status = AE_OK;

	/* Update count, check if we have executed enough methods */

	info->count++;
	if (info->count >= info->max_count) {
		status = AE_CTRL_TERMINATE;
	}

	return (status);
}
Beispiel #9
0
static acpi_status
acpi_db_device_resources(acpi_handle obj_handle,
			 u32 nesting_level, void *context, void **return_value)
{
	struct acpi_namespace_node *node;
	struct acpi_namespace_node *prt_node = NULL;
	struct acpi_namespace_node *crs_node = NULL;
	struct acpi_namespace_node *prs_node = NULL;
	struct acpi_namespace_node *aei_node = NULL;
	char *parent_path;
	struct acpi_buffer return_buffer;
	acpi_status status;

	node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
	parent_path = acpi_ns_get_normalized_pathname(node, TRUE);
	if (!parent_path) {
		return (AE_NO_MEMORY);
	}

	/* Get handles to the resource methods for this device */

	(void)acpi_get_handle(node, METHOD_NAME__PRT,
			      ACPI_CAST_PTR(acpi_handle, &prt_node));
	(void)acpi_get_handle(node, METHOD_NAME__CRS,
			      ACPI_CAST_PTR(acpi_handle, &crs_node));
	(void)acpi_get_handle(node, METHOD_NAME__PRS,
			      ACPI_CAST_PTR(acpi_handle, &prs_node));
	(void)acpi_get_handle(node, METHOD_NAME__AEI,
			      ACPI_CAST_PTR(acpi_handle, &aei_node));

	if (!prt_node && !crs_node && !prs_node && !aei_node) {
		goto cleanup;	/* Nothing to do */
	}

	acpi_os_printf("\nDevice: %s\n", parent_path);

	/* Prepare for a return object of arbitrary size */

	return_buffer.pointer = acpi_gbl_db_buffer;
	return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

	/* _PRT */

	if (prt_node) {
		acpi_os_printf("Evaluating _PRT\n");

		status =
		    acpi_evaluate_object(prt_node, NULL, NULL, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("Could not evaluate _PRT: %s\n",
				       acpi_format_exception(status));
			goto get_crs;
		}

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status = acpi_get_irq_routing_table(node, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("GetIrqRoutingTable failed: %s\n",
				       acpi_format_exception(status));
			goto get_crs;
		}

		acpi_rs_dump_irq_list(ACPI_CAST_PTR(u8, acpi_gbl_db_buffer));
	}

	/* _CRS */

get_crs:
	if (crs_node) {
		acpi_os_printf("Evaluating _CRS\n");

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status =
		    acpi_evaluate_object(crs_node, NULL, NULL, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("Could not evaluate _CRS: %s\n",
				       acpi_format_exception(status));
			goto get_prs;
		}

		/* This code exercises the acpi_walk_resources interface */

		status = acpi_walk_resources(node, METHOD_NAME__CRS,
					     acpi_db_resource_callback, NULL);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiWalkResources failed: %s\n",
				       acpi_format_exception(status));
			goto get_prs;
		}

		/* Get the _CRS resource list (test ALLOCATE buffer) */

		return_buffer.pointer = NULL;
		return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;

		status = acpi_get_current_resources(node, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiGetCurrentResources failed: %s\n",
				       acpi_format_exception(status));
			goto get_prs;
		}

		/* This code exercises the acpi_walk_resource_buffer interface */

		status = acpi_walk_resource_buffer(&return_buffer,
						   acpi_db_resource_callback,
						   NULL);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiWalkResourceBuffer failed: %s\n",
				       acpi_format_exception(status));
			goto end_crs;
		}

		/* Dump the _CRS resource list */

		acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource,
							 return_buffer.
							 pointer));

		/*
		 * Perform comparison of original AML to newly created AML. This
		 * tests both the AML->Resource conversion and the Resource->AML
		 * conversion.
		 */
		(void)acpi_dm_test_resource_conversion(node, METHOD_NAME__CRS);

		/* Execute _SRS with the resource list */

		acpi_os_printf("Evaluating _SRS\n");

		status = acpi_set_current_resources(node, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiSetCurrentResources failed: %s\n",
				       acpi_format_exception(status));
			goto end_crs;
		}

end_crs:
		ACPI_FREE(return_buffer.pointer);
	}

	/* _PRS */

get_prs:
	if (prs_node) {
		acpi_os_printf("Evaluating _PRS\n");

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status =
		    acpi_evaluate_object(prs_node, NULL, NULL, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("Could not evaluate _PRS: %s\n",
				       acpi_format_exception(status));
			goto get_aei;
		}

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status = acpi_get_possible_resources(node, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiGetPossibleResources failed: %s\n",
				       acpi_format_exception(status));
			goto get_aei;
		}

		acpi_rs_dump_resource_list(ACPI_CAST_PTR
					   (struct acpi_resource,
					    acpi_gbl_db_buffer));
	}

	/* _AEI */

get_aei:
	if (aei_node) {
		acpi_os_printf("Evaluating _AEI\n");

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status =
		    acpi_evaluate_object(aei_node, NULL, NULL, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("Could not evaluate _AEI: %s\n",
				       acpi_format_exception(status));
			goto cleanup;
		}

		return_buffer.pointer = acpi_gbl_db_buffer;
		return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;

		status = acpi_get_event_resources(node, &return_buffer);
		if (ACPI_FAILURE(status)) {
			acpi_os_printf("AcpiGetEventResources failed: %s\n",
				       acpi_format_exception(status));
			goto cleanup;
		}

		acpi_rs_dump_resource_list(ACPI_CAST_PTR
					   (struct acpi_resource,
					    acpi_gbl_db_buffer));
	}

cleanup:
	ACPI_FREE(parent_path);
	return (AE_OK);
}
Beispiel #10
0
acpi_status
acpi_ds_call_control_method(struct acpi_thread_state *thread,
			    struct acpi_walk_state *this_walk_state,
			    union acpi_parse_object *op)
{
	acpi_status status;
	struct acpi_namespace_node *method_node;
	struct acpi_walk_state *next_walk_state = NULL;
	union acpi_operand_object *obj_desc;
	struct acpi_evaluate_info *info;
	u32 i;

	ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state);

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "Calling method %p, currentstate=%p\n",
			  this_walk_state->prev_op, this_walk_state));

	/*
	 * Get the namespace entry for the control method we are about to call
	 */
	method_node = this_walk_state->method_call_node;
	if (!method_node) {
		return_ACPI_STATUS(AE_NULL_ENTRY);
	}

	obj_desc = acpi_ns_get_attached_object(method_node);
	if (!obj_desc) {
		return_ACPI_STATUS(AE_NULL_OBJECT);
	}

	/* Init for new method, possibly wait on method mutex */

	status =
	    acpi_ds_begin_method_execution(method_node, obj_desc,
					   this_walk_state);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Begin method parse/execution. Create a new walk state */

	next_walk_state =
	    acpi_ds_create_walk_state(obj_desc->method.owner_id, NULL, obj_desc,
				      thread);
	if (!next_walk_state) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	/*
	 * The resolved arguments were put on the previous walk state's operand
	 * stack. Operands on the previous walk state stack always
	 * start at index 0. Also, null terminate the list of arguments
	 */
	this_walk_state->operands[this_walk_state->num_operands] = NULL;

	/*
	 * Allocate and initialize the evaluation information block
	 * TBD: this is somewhat inefficient, should change interface to
	 * ds_init_aml_walk. For now, keeps this struct off the CPU stack
	 */
	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
	if (!info) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	info->parameters = &this_walk_state->operands[0];

	status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
				       obj_desc->method.aml_start,
				       obj_desc->method.aml_length, info,
				       ACPI_IMODE_EXECUTE);

	ACPI_FREE(info);
	if (ACPI_FAILURE(status)) {
		goto cleanup;
	}

	next_walk_state->method_nesting_depth =
	    this_walk_state->method_nesting_depth + 1;

	/*
	 * Delete the operands on the previous walkstate operand stack
	 * (they were copied to new objects)
	 */
	for (i = 0; i < obj_desc->method.param_count; i++) {
		acpi_ut_remove_reference(this_walk_state->operands[i]);
		this_walk_state->operands[i] = NULL;
	}

	/* Clear the operand stack */

	this_walk_state->num_operands = 0;

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "**** Begin nested execution of [%4.4s] **** WalkState=%p\n",
			  method_node->name.ascii, next_walk_state));

	this_walk_state->method_pathname =
	    acpi_ns_get_normalized_pathname(method_node, TRUE);
	this_walk_state->method_is_nested = TRUE;

	/* Optional object evaluation log */

	ACPI_DEBUG_PRINT_RAW((ACPI_DB_EVALUATION,
			      "%-26s:  %*s%s\n", "   Nested method call",
			      next_walk_state->method_nesting_depth * 3, " ",
			      &this_walk_state->method_pathname[1]));

	/* Invoke an internal method if necessary */

	if (obj_desc->method.info_flags & ACPI_METHOD_INTERNAL_ONLY) {
		status =
		    obj_desc->method.dispatch.implementation(next_walk_state);
		if (status == AE_OK) {
			status = AE_CTRL_TERMINATE;
		}
	}

	return_ACPI_STATUS(status);

cleanup:

	/* On error, we must terminate the method properly */

	acpi_ds_terminate_control_method(obj_desc, next_walk_state);
	acpi_ds_delete_walk_state(next_walk_state);

	return_ACPI_STATUS(status);
}
Beispiel #11
0
u32
acpi_ut_check_address_range(acpi_adr_space_type space_id,
			    acpi_physical_address address, u32 length, u8 warn)
{
	struct acpi_address_range *range_info;
	acpi_physical_address end_address;
	char *pathname;
	u32 overlap_count = 0;

	ACPI_FUNCTION_TRACE(ut_check_address_range);

	if ((space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
	    (space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
		return_UINT32(0);
	}

	range_info = acpi_gbl_address_range_list[space_id];
	end_address = address + length - 1;

	/* Check entire list for all possible conflicts */

	while (range_info) {
		/*
		 * Check if the requested address/length overlaps this
		 * address range. There are four cases to consider:
		 *
		 * 1) Input address/length is contained completely in the
		 *    address range
		 * 2) Input address/length overlaps range at the range start
		 * 3) Input address/length overlaps range at the range end
		 * 4) Input address/length completely encompasses the range
		 */
		if ((address <= range_info->end_address) &&
		    (end_address >= range_info->start_address)) {

			/* Found an address range overlap */

			overlap_count++;
			if (warn) {	/* Optional warning message */
				pathname =
				    acpi_ns_get_normalized_pathname(range_info->
								    region_node,
								    TRUE);

				ACPI_WARNING((AE_INFO,
					      "%s range 0x%8.8X%8.8X-0x%8.8X%8.8X conflicts with OpRegion 0x%8.8X%8.8X-0x%8.8X%8.8X (%s)",
					      acpi_ut_get_region_name(space_id),
					      ACPI_FORMAT_UINT64(address),
					      ACPI_FORMAT_UINT64(end_address),
					      ACPI_FORMAT_UINT64(range_info->
								 start_address),
					      ACPI_FORMAT_UINT64(range_info->
								 end_address),
					      pathname));
				ACPI_FREE(pathname);
			}
		}

		range_info = range_info->next;
	}

	return_UINT32(overlap_count);
}
Beispiel #12
0
static acpi_status
acpi_ns_init_one_device(acpi_handle obj_handle,
			u32 nesting_level, void *context, void **return_value)
{
	struct acpi_device_walk_info *walk_info =
	    ACPI_CAST_PTR(struct acpi_device_walk_info, context);
	struct acpi_evaluate_info *info = walk_info->evaluate_info;
	u32 flags;
	acpi_status status;
	struct acpi_namespace_node *device_node;

	ACPI_FUNCTION_TRACE(ns_init_one_device);

	/* We are interested in Devices, Processors and thermal_zones only */

	device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
	if ((device_node->type != ACPI_TYPE_DEVICE) &&
	    (device_node->type != ACPI_TYPE_PROCESSOR) &&
	    (device_node->type != ACPI_TYPE_THERMAL)) {
		return_ACPI_STATUS(AE_OK);
	}

	/*
	 * Because of an earlier namespace analysis, all subtrees that contain an
	 * _INI method are tagged.
	 *
	 * If this device subtree does not contain any _INI methods, we
	 * can exit now and stop traversing this entire subtree.
	 */
	if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
		return_ACPI_STATUS(AE_CTRL_DEPTH);
	}

	/*
	 * Run _STA to determine if this device is present and functioning. We
	 * must know this information for two important reasons (from ACPI spec):
	 *
	 * 1) We can only run _INI if the device is present.
	 * 2) We must abort the device tree walk on this subtree if the device is
	 *    not present and is not functional (we will not examine the children)
	 *
	 * The _STA method is not required to be present under the device, we
	 * assume the device is present if _STA does not exist.
	 */
	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
			(ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));

	status = acpi_ut_execute_STA(device_node, &flags);
	if (ACPI_FAILURE(status)) {

		/* Ignore error and move on to next device */

		return_ACPI_STATUS(AE_OK);
	}

	/*
	 * Flags == -1 means that _STA was not found. In this case, we assume that
	 * the device is both present and functional.
	 *
	 * From the ACPI spec, description of _STA:
	 *
	 * "If a device object (including the processor object) does not have an
	 * _STA object, then OSPM assumes that all of the above bits are set (in
	 * other words, the device is present, ..., and functioning)"
	 */
	if (flags != ACPI_UINT32_MAX) {
		walk_info->num_STA++;
	}

	/*
	 * Examine the PRESENT and FUNCTIONING status bits
	 *
	 * Note: ACPI spec does not seem to specify behavior for the present but
	 * not functioning case, so we assume functioning if present.
	 */
	if (!(flags & ACPI_STA_DEVICE_PRESENT)) {

		/* Device is not present, we must examine the Functioning bit */

		if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
			/*
			 * Device is not present but is "functioning". In this case,
			 * we will not run _INI, but we continue to examine the children
			 * of this device.
			 *
			 * From the ACPI spec, description of _STA: (note - no mention
			 * of whether to run _INI or not on the device in question)
			 *
			 * "_STA may return bit 0 clear (not present) with bit 3 set
			 * (device is functional). This case is used to indicate a valid
			 * device for which no device driver should be loaded (for example,
			 * a bridge device.) Children of this device may be present and
			 * valid. OSPM should continue enumeration below a device whose
			 * _STA returns this bit combination"
			 */
			return_ACPI_STATUS(AE_OK);
		} else {
			/*
			 * Device is not present and is not functioning. We must abort the
			 * walk of this subtree immediately -- don't look at the children
			 * of such a device.
			 *
			 * From the ACPI spec, description of _INI:
			 *
			 * "If the _STA method indicates that the device is not present,
			 * OSPM will not run the _INI and will not examine the children
			 * of the device for _INI methods"
			 */
			return_ACPI_STATUS(AE_CTRL_DEPTH);
		}
	}

	/*
	 * The device is present or is assumed present if no _STA exists.
	 * Run the _INI if it exists (not required to exist)
	 *
	 * Note: We know there is an _INI within this subtree, but it may not be
	 * under this particular device, it may be lower in the branch.
	 */
	if (!ACPI_COMPARE_NAME(device_node->name.ascii, "_SB_") ||
	    device_node->parent != acpi_gbl_root_node) {
		ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
				(ACPI_TYPE_METHOD, device_node,
				 METHOD_NAME__INI));

		memset(info, 0, sizeof(struct acpi_evaluate_info));
		info->prefix_node = device_node;
		info->relative_pathname = METHOD_NAME__INI;
		info->parameters = NULL;
		info->flags = ACPI_IGNORE_RETURN_VALUE;

		status = acpi_ns_evaluate(info);
		if (ACPI_SUCCESS(status)) {
			walk_info->num_INI++;
		}
#ifdef ACPI_DEBUG_OUTPUT
		else if (status != AE_NOT_FOUND) {

			/* Ignore error and move on to next device */

			char *scope_name =
			    acpi_ns_get_normalized_pathname(device_node, TRUE);

			ACPI_EXCEPTION((AE_INFO, status,
					"during %s._INI execution",
					scope_name));
			ACPI_FREE(scope_name);
		}
#endif
	}

	/* Ignore errors from above */

	status = AE_OK;

	/*
	 * The _INI method has been run if present; call the Global Initialization
	 * Handler for this device.
	 */
	if (acpi_gbl_init_handler) {
		status =
		    acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
	}

	return_ACPI_STATUS(status);
}
/*******************************************************************************
 *
 * FUNCTION:    ns_execute_table
 *
 * PARAMETERS:  table_desc      - An ACPI table descriptor for table to parse
 *              start_node      - Where to enter the table into the namespace
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Load ACPI/AML table by executing the entire table as a
 *              term_list.
 *
 ******************************************************************************/
acpi_status
acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node)
{
	acpi_status status;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;
	struct acpi_evaluate_info *info = NULL;
	u32 aml_length;
	u8 *aml_start;
	union acpi_operand_object *method_obj = NULL;

	ACPI_FUNCTION_TRACE(ns_execute_table);

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Table must consist of at least a complete header */

	if (table->length < sizeof(struct acpi_table_header)) {
		return_ACPI_STATUS(AE_BAD_HEADER);
	}

	aml_start = (u8 *)table + sizeof(struct acpi_table_header);
	aml_length = table->length - sizeof(struct acpi_table_header);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Create, initialize, and link a new temporary method object */

	method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
	if (!method_obj) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Allocate the evaluation information block */

	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
	if (!info) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
			  "Create table code block: %p\n", method_obj));

	method_obj->method.aml_start = aml_start;
	method_obj->method.aml_length = aml_length;
	method_obj->method.owner_id = owner_id;
	method_obj->method.info_flags |= ACPI_METHOD_MODULE_LEVEL;

	info->pass_number = ACPI_IMODE_EXECUTE;
	info->node = start_node;
	info->obj_desc = method_obj;
	info->node_flags = info->node->flags;
	info->full_pathname = acpi_ns_get_normalized_pathname(info->node, TRUE);
	if (!info->full_pathname) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	status = acpi_ps_execute_table(info);

cleanup:
	if (info) {
		ACPI_FREE(info->full_pathname);
		info->full_pathname = NULL;
	}
	ACPI_FREE(info);
	acpi_ut_remove_reference(method_obj);
	return_ACPI_STATUS(status);
}
Beispiel #14
0
	info->return_object = NULL;
	info->node_flags = info->node->flags;
	info->obj_desc = acpi_ns_get_attached_object(info->node);

	ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
			  info->relative_pathname, info->node,
			  acpi_ns_get_attached_object(info->node)));

	/* Get info if we have a predefined name (_HID, etc.) */

	info->predefined =
	    acpi_ut_match_predefined_method(info->node->name.ascii);

	/* Get the full pathname to the object, for use in warning messages */

	info->full_pathname = acpi_ns_get_normalized_pathname(info->node, TRUE);
	if (!info->full_pathname) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Count the number of arguments being passed in */

	info->param_count = 0;
	if (info->parameters) {
		while (info->parameters[info->param_count]) {
			info->param_count++;
		}

		/* Warn on impossible argument count */

		if (info->param_count > ACPI_METHOD_NUM_ARGS) {