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Commit 424deb38 authored by Bob Moore's avatar Bob Moore Committed by Rafael J. Wysocki
Browse files

ACPICA: Debugger: Add new command to display full namespace pathnames. 



Paths command displays the full pathname and object type for
the entire namespace. Alternative to the Namespace command.

Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
Reviewed-by: default avatarLen Brown <len.brown@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent d2e7d079

drivers/acpi/acpica/acdebug.h

+2 −0
Original line number Diff line number Diff line
@@ -155,6 +155,8 @@ void acpi_db_set_scope(char *name); 


void acpi_db_dump_namespace(char *start_arg, char *depth_arg);



void acpi_db_dump_namespace_paths(void);



void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg);



acpi_status acpi_db_find_name_in_namespace(char *name_arg);

drivers/acpi/acpica/acnamesp.h

+6 −0
Original line number Diff line number Diff line
@@ -213,6 +213,12 @@ acpi_ns_dump_objects(acpi_object_type type, 
		     u8 display_type,

		     u32 max_depth,

		     acpi_owner_id owner_id, acpi_handle start_handle);



void

acpi_ns_dump_object_paths(acpi_object_type type,

			  u8 display_type,

			  u32 max_depth,

			  acpi_owner_id owner_id, acpi_handle start_handle);

#endif				/* ACPI_FUTURE_USAGE */



/*

drivers/acpi/acpica/nsdump.c

+134 −0
Original line number Diff line number Diff line
@@ -59,6 +59,17 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, 
#endif



#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)



#ifdef	ACPI_FUTURE_USAGE

static acpi_status

acpi_ns_dump_one_object_path(acpi_handle obj_handle,

			     u32 level, void *context, void **return_value);



static acpi_status

acpi_ns_get_max_depth(acpi_handle obj_handle,

		      u32 level, void *context, void **return_value);

#endif				/* ACPI_FUTURE_USAGE */



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

 *

 * FUNCTION:    acpi_ns_print_pathname
@@ -671,6 +682,129 @@ acpi_ns_dump_objects(acpi_object_type type, 
}

#endif				/* ACPI_FUTURE_USAGE */



#ifdef	ACPI_FUTURE_USAGE

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

 *

 * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth

 *

 * PARAMETERS:  obj_handle          - Node to be dumped

 *              level               - Nesting level of the handle

 *              context             - Passed into walk_namespace

 *              return_value        - Not used

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth

 *              computes the maximum nesting depth in the namespace tree, in

 *              order to simplify formatting in acpi_ns_dump_one_object_path.

 *              These procedures are user_functions called by acpi_ns_walk_namespace.

 *

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



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);

	pathname = acpi_ns_get_external_pathname(node);



	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);

}



static acpi_status

acpi_ns_get_max_depth(acpi_handle obj_handle,

		      u32 level, void *context, void **return_value)

{

	u32 *max_level = (u32 *)context;



	if (level > *max_level) {

		*max_level = level;

	}

	return (AE_OK);

}



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

 *

 * FUNCTION:    acpi_ns_dump_object_paths

 *

 * PARAMETERS:  type                - Object type to be dumped

 *              display_type        - 0 or ACPI_DISPLAY_SUMMARY

 *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX

 *                                    for an effectively unlimited depth.

 *              owner_id            - Dump only objects owned by this ID. Use

 *                                    ACPI_UINT32_MAX to match all owners.

 *              start_handle        - Where in namespace to start/end search

 *

 * RETURN:      None

 *

 * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses

 *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.

 *

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



void

acpi_ns_dump_object_paths(acpi_object_type type,

			  u8 display_type,

			  u32 max_depth,

			  acpi_owner_id owner_id, acpi_handle start_handle)

{

	acpi_status status;

	u32 max_level = 0;



	ACPI_FUNCTION_ENTRY();



	/*

	 * Just lock the entire namespace for the duration of the dump.

	 * We don't want any changes to the namespace during this time,

	 * especially the temporary nodes since we are going to display

	 * them also.

	 */

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);

	if (ACPI_FAILURE(status)) {

		acpi_os_printf("Could not acquire namespace mutex\n");

		return;

	}



	/* Get the max depth of the namespace tree, for formatting later */



	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,

				     ACPI_NS_WALK_NO_UNLOCK |

				     ACPI_NS_WALK_TEMP_NODES,

				     acpi_ns_get_max_depth, NULL,

				     (void *)&max_level, NULL);



	/* Now dump the entire namespace */



	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,

				     ACPI_NS_WALK_NO_UNLOCK |

				     ACPI_NS_WALK_TEMP_NODES,

				     acpi_ns_dump_one_object_path, NULL,

				     (void *)&max_level, NULL);



	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

}

#endif				/* ACPI_FUTURE_USAGE */



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

 *

 * FUNCTION:    acpi_ns_dump_entry