diff options
Diffstat (limited to 'drivers/gpu/drm/drm_mode_object.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mode_object.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 1055533792f3..ce4d2fb32810 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -104,7 +104,27 @@ void drm_mode_object_unregister(struct drm_device *dev, mutex_unlock(&dev->mode_config.idr_mutex); } +/** + * drm_lease_required - check types which must be leased to be used + * @type: type of object + * + * Returns whether the provided type of drm_mode_object must + * be owned or leased to be used by a process. + */ +bool drm_mode_object_lease_required(uint32_t type) +{ + switch(type) { + case DRM_MODE_OBJECT_CRTC: + case DRM_MODE_OBJECT_CONNECTOR: + case DRM_MODE_OBJECT_PLANE: + return true; + default: + return false; + } +} + struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev, + struct drm_file *file_priv, uint32_t id, uint32_t type) { struct drm_mode_object *obj = NULL; @@ -116,6 +136,10 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev, if (obj && obj->id != id) obj = NULL; + if (obj && drm_mode_object_lease_required(obj->type) && + !_drm_lease_held(file_priv, obj->id)) + obj = NULL; + if (obj && obj->free_cb) { if (!kref_get_unless_zero(&obj->refcount)) obj = NULL; @@ -128,6 +152,7 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev, /** * drm_mode_object_find - look up a drm object with static lifetime * @dev: drm device + * @file_priv: drm file * @id: id of the mode object * @type: type of the mode object * @@ -136,11 +161,12 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev, * by callind drm_mode_object_put(). */ struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, + struct drm_file *file_priv, uint32_t id, uint32_t type) { struct drm_mode_object *obj = NULL; - obj = __drm_mode_object_find(dev, id, type); + obj = __drm_mode_object_find(dev, file_priv, id, type); return obj; } EXPORT_SYMBOL(drm_mode_object_find); @@ -247,8 +273,9 @@ int drm_object_property_set_value(struct drm_mode_object *obj, } EXPORT_SYMBOL(drm_object_property_set_value); -int __drm_object_property_get_value(struct drm_mode_object *obj, - struct drm_property *property, uint64_t *val) +static int __drm_object_property_get_value(struct drm_mode_object *obj, + struct drm_property *property, + uint64_t *val) { int i; @@ -358,7 +385,7 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, drm_modeset_lock_all(dev); - obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); + obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type); if (!obj) { ret = -ENOENT; goto out; @@ -480,7 +507,7 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; - arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); + arg_obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type); if (!arg_obj) return -ENOENT; |