diff options
Diffstat (limited to 'include/drm/ttm/ttm_resource.h')
| -rw-r--r-- | include/drm/ttm/ttm_resource.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 0f1d55262c68..441653693970 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -26,14 +26,17 @@ #define _TTM_RESOURCE_H_ #include <linux/types.h> +#include <linux/list.h> #include <linux/mutex.h> #include <linux/iosys-map.h> #include <linux/dma-fence.h> + #include <drm/drm_print.h> #include <drm/ttm/ttm_caching.h> #include <drm/ttm/ttm_kmap_iter.h> #define TTM_MAX_BO_PRIORITY 4U +#define TTM_NUM_MEM_TYPES 8 struct ttm_device; struct ttm_resource_manager; @@ -178,6 +181,47 @@ struct ttm_resource { uint32_t placement; struct ttm_bus_placement bus; struct ttm_buffer_object *bo; + + /** + * @lru: Least recently used list, see &ttm_resource_manager.lru + */ + struct list_head lru; +}; + +/** + * struct ttm_resource_cursor + * + * @priority: the current priority + * + * Cursor to iterate over the resources in a manager. + */ +struct ttm_resource_cursor { + unsigned int priority; +}; + +/** + * struct ttm_lru_bulk_move_pos + * + * @first: first res in the bulk move range + * @last: last res in the bulk move range + * + * Range of resources for a lru bulk move. + */ +struct ttm_lru_bulk_move_pos { + struct ttm_resource *first; + struct ttm_resource *last; +}; + +/** + * struct ttm_lru_bulk_move + * + * @pos: first/last lru entry for resources in the each domain/priority + * + * Container for the current bulk move state. Should be used with + * ttm_lru_bulk_move_init() and ttm_bo_set_bulk_move(). + */ +struct ttm_lru_bulk_move { + struct ttm_lru_bulk_move_pos pos[TTM_NUM_MEM_TYPES][TTM_MAX_BO_PRIORITY]; }; /** @@ -266,6 +310,15 @@ ttm_resource_manager_cleanup(struct ttm_resource_manager *man) man->move = NULL; } +void ttm_lru_bulk_move_init(struct ttm_lru_bulk_move *bulk); +void ttm_lru_bulk_move_add(struct ttm_lru_bulk_move *bulk, + struct ttm_resource *res); +void ttm_lru_bulk_move_del(struct ttm_lru_bulk_move *bulk, + struct ttm_resource *res); +void ttm_lru_bulk_move_tail(struct ttm_lru_bulk_move *bulk); + +void ttm_resource_move_to_lru_tail(struct ttm_resource *res); + void ttm_resource_init(struct ttm_buffer_object *bo, const struct ttm_place *place, struct ttm_resource *res); @@ -292,6 +345,26 @@ uint64_t ttm_resource_manager_usage(struct ttm_resource_manager *man); void ttm_resource_manager_debug(struct ttm_resource_manager *man, struct drm_printer *p); +struct ttm_resource * +ttm_resource_manager_first(struct ttm_resource_manager *man, + struct ttm_resource_cursor *cursor); +struct ttm_resource * +ttm_resource_manager_next(struct ttm_resource_manager *man, + struct ttm_resource_cursor *cursor, + struct ttm_resource *res); + +/** + * ttm_resource_manager_for_each_res - iterate over all resources + * @man: the resource manager + * @cursor: struct ttm_resource_cursor for the current position + * @res: the current resource + * + * Iterate over all the evictable resources in a resource manager. + */ +#define ttm_resource_manager_for_each_res(man, cursor, res) \ + for (res = ttm_resource_manager_first(man, cursor); res; \ + res = ttm_resource_manager_next(man, cursor, res)) + struct ttm_kmap_iter * ttm_kmap_iter_iomap_init(struct ttm_kmap_iter_iomap *iter_io, struct io_mapping *iomap, @@ -308,4 +381,8 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io, void ttm_kmap_iter_linear_io_fini(struct ttm_kmap_iter_linear_io *iter_io, struct ttm_device *bdev, struct ttm_resource *mem); + +void ttm_resource_manager_create_debugfs(struct ttm_resource_manager *man, + struct dentry * parent, + const char *name); #endif |