diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/root.h | 45 | ||||
| -rw-r--r-- | include/dm/tag.h | 11 |
2 files changed, 56 insertions, 0 deletions
diff --git a/include/dm/root.h b/include/dm/root.h index e888fb993c..382f83c7f5 100644 --- a/include/dm/root.h +++ b/include/dm/root.h @@ -9,12 +9,50 @@ #ifndef _DM_ROOT_H_ #define _DM_ROOT_H_ +#include <dm/tag.h> + struct udevice; /* Head of the uclass list if CONFIG_OF_PLATDATA_INST is enabled */ extern struct list_head uclass_head; /** + * struct dm_stats - Information about driver model memory usage + * + * @total_size: All data + * @dev_count: Number of devices + * @dev_size: Size of all devices (just the struct udevice) + * @dev_name_size: Bytes used by device names + * @uc_count: Number of uclasses + * @uc_size: Size of all uclasses (just the struct uclass) + * @tag_count: Number of tags + * @tag_size: Bytes used by all tags + * @uc_attach_count: Number of uclasses with attached data (priv) + * @uc_attach_size: Total size of that attached data + * @attach_count_total: Total number of attached data items for all udevices and + * uclasses + * @attach_size_total: Total number of bytes of attached data + * @attach_count: Number of devices with attached, for each type + * @attach_size: Total number of bytes of attached data, for each type + */ +struct dm_stats { + int total_size; + int dev_count; + int dev_size; + int dev_name_size; + int uc_count; + int uc_size; + int tag_count; + int tag_size; + int uc_attach_count; + int uc_attach_size; + int attach_count_total; + int attach_size_total; + int attach_count[DM_TAG_ATTACH_COUNT]; + int attach_size[DM_TAG_ATTACH_COUNT]; +}; + +/** * dm_root() - Return pointer to the top of the driver tree * * This function returns pointer to the root node of the driver tree, @@ -141,4 +179,11 @@ static inline int dm_remove_devices_flags(uint flags) { return 0; } */ void dm_get_stats(int *device_countp, int *uclass_countp); +/** + * dm_get_mem() - Get stats on memory usage in driver model + * + * @mem: Place to put the information + */ +void dm_get_mem(struct dm_stats *stats); + #endif diff --git a/include/dm/tag.h b/include/dm/tag.h index 9cb5d68f0a..1ea3c9f7af 100644 --- a/include/dm/tag.h +++ b/include/dm/tag.h @@ -10,6 +10,7 @@ #include <linux/list.h> #include <linux/types.h> +struct dm_stats; struct udevice; enum dm_tag_t { @@ -118,4 +119,14 @@ int dev_tag_del(struct udevice *dev, enum dm_tag_t tag); */ int dev_tag_del_all(struct udevice *dev); +/** + * dev_tag_collect_stats() - Collect information on driver model performance + * + * This collects information on how driver model is performing. For now it only + * includes memory usage + * + * @stats: Place to put the collected information + */ +void dev_tag_collect_stats(struct dm_stats *stats); + #endif /* _DM_TAG_H */ |