diff options
Diffstat (limited to 'include/drm/drm_gem.h')
| -rw-r--r-- | include/drm/drm_gem.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index b8efd836edef..bbc721870c13 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -43,6 +43,25 @@ struct iosys_map; struct drm_gem_object; /** + * enum drm_gem_object_status - bitmask of object state for fdinfo reporting + * @DRM_GEM_OBJECT_RESIDENT: object is resident in memory (ie. not unpinned) + * @DRM_GEM_OBJECT_PURGEABLE: object marked as purgeable by userspace + * + * Bitmask of status used for fdinfo memory stats, see &drm_gem_object_funcs.status + * and drm_show_fdinfo(). Note that an object can DRM_GEM_OBJECT_PURGEABLE if + * it still active or not resident, in which case drm_show_fdinfo() will not + * account for it as purgeable. So drivers do not need to check if the buffer + * is idle and resident to return this bit. (Ie. userspace can mark a buffer + * as purgeable even while it is still busy on the GPU.. it does not _actually_ + * become puregeable until it becomes idle. The status gem object func does + * not need to consider this.) + */ +enum drm_gem_object_status { + DRM_GEM_OBJECT_RESIDENT = BIT(0), + DRM_GEM_OBJECT_PURGEABLE = BIT(1), +}; + +/** * struct drm_gem_object_funcs - GEM object functions */ struct drm_gem_object_funcs { @@ -175,6 +194,19 @@ struct drm_gem_object_funcs { int (*evict)(struct drm_gem_object *obj); /** + * @status: + * + * The optional status callback can return additional object state + * which determines which stats the object is counted against. The + * callback is called under table_lock. Racing against object status + * change is "harmless", and the callback can expect to not race + * against object destruction. + * + * Called by drm_show_memory_stats(). + */ + enum drm_gem_object_status (*status)(struct drm_gem_object *obj); + + /** * @vm_ops: * * Virtual memory operations used with mmap. |