39 int __drm_mode_object_add(struct drm_device *dev, struct drm_mode_object *obj,  in __drm_mode_object_add()
43 	int ret;  in __drm_mode_object_add()
45 	WARN_ON(!dev->driver->load && dev->registered && !obj_free_cb);  in __drm_mode_object_add()
47 	mutex_lock(&dev->mode_config.idr_mutex);  in __drm_mode_object_add()
48 	ret = idr_alloc(&dev->mode_config.object_idr, register_obj ? obj : NULL,  in __drm_mode_object_add()
55 		obj->id = ret;  in __drm_mode_object_add()
56 		obj->type = obj_type;  in __drm_mode_object_add()
58 			obj->free_cb = obj_free_cb;  in __drm_mode_object_add()
59 			kref_init(&obj->refcount);  in __drm_mode_object_add()
62 	mutex_unlock(&dev->mode_config.idr_mutex);  in __drm_mode_object_add()
68  * drm_mode_object_add - allocate a new modeset identifier
79 int drm_mode_object_add(struct drm_device *dev,  in drm_mode_object_add()
88 	mutex_lock(&dev->mode_config.idr_mutex);  in drm_mode_object_register()
89 	idr_replace(&dev->mode_config.object_idr, obj, obj->id);  in drm_mode_object_register()
90 	mutex_unlock(&dev->mode_config.idr_mutex);  in drm_mode_object_register()
94  * drm_mode_object_unregister - free a modeset identifer
107 	WARN_ON(!dev->driver->load && dev->registered && !object->free_cb);  in drm_mode_object_unregister()
109 	mutex_lock(&dev->mode_config.idr_mutex);  in drm_mode_object_unregister()
110 	if (object->id) {  in drm_mode_object_unregister()
111 		idr_remove(&dev->mode_config.object_idr, object->id);  in drm_mode_object_unregister()
112 		object->id = 0;  in drm_mode_object_unregister()
114 	mutex_unlock(&dev->mode_config.idr_mutex);  in drm_mode_object_unregister()
118  * drm_lease_required - check types which must be leased to be used
142 	mutex_lock(&dev->mode_config.idr_mutex);  in __drm_mode_object_find()
143 	obj = idr_find(&dev->mode_config.object_idr, id);  in __drm_mode_object_find()
144 	if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type)  in __drm_mode_object_find()
146 	if (obj && obj->id != id)  in __drm_mode_object_find()
149 	if (obj && drm_mode_object_lease_required(obj->type) &&  in __drm_mode_object_find()
150 	    !_drm_lease_held(file_priv, obj->id))  in __drm_mode_object_find()
153 	if (obj && obj->free_cb) {  in __drm_mode_object_find()
154 		if (!kref_get_unless_zero(&obj->refcount))  in __drm_mode_object_find()
157 	mutex_unlock(&dev->mode_config.idr_mutex);  in __drm_mode_object_find()
163  * drm_mode_object_find - look up a drm object with static lifetime
185  * drm_mode_object_put - release a mode object reference
189  * object. It is a no-op on any other object. This is used to drop references
194 	if (obj->free_cb) {  in drm_mode_object_put()
195 		DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, kref_read(&obj->refcount));  in drm_mode_object_put()
196 		kref_put(&obj->refcount, obj->free_cb);  in drm_mode_object_put()
202  * drm_mode_object_get - acquire a mode object reference
206  * object. It is a no-op on any other object. References should be dropped again
211 	if (obj->free_cb) {  in drm_mode_object_get()
212 		DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, kref_read(&obj->refcount));  in drm_mode_object_get()
213 		kref_get(&obj->refcount);  in drm_mode_object_get()
219  * drm_object_attach_property - attach a property to a modeset object
221  * @property: property to attach
222  * @init_val: initial value of the property
224  * This attaches the given property to the modeset object with the given initial
232 				struct drm_property *property,  in drm_object_attach_property()  argument
235 	int count = obj->properties->count;  in drm_object_attach_property()
236 	struct drm_device *dev = property->dev;  in drm_object_attach_property()
239 	if (obj->type == DRM_MODE_OBJECT_CONNECTOR) {  in drm_object_attach_property()
242 		WARN_ON(!dev->driver->load &&  in drm_object_attach_property()
243 			connector->registration_state == DRM_CONNECTOR_REGISTERED);  in drm_object_attach_property()
245 		WARN_ON(!dev->driver->load && dev->registered);  in drm_object_attach_property()
249 		WARN(1, "Failed to attach object property (type: 0x%x). Please "  in drm_object_attach_property()
252 			obj->type);  in drm_object_attach_property()
256 	obj->properties->properties[count] = property;  in drm_object_attach_property()
257 	obj->properties->values[count] = init_val;  in drm_object_attach_property()
258 	obj->properties->count++;  in drm_object_attach_property()
263  * drm_object_property_set_value - set the value of a property
264  * @obj: drm mode object to set property value for
265  * @property: property to set
266  * @val: value the property should be set to
268  * This function sets a given property on a given object. This function only
269  * changes the software state of the property, it does not call into the
270  * driver's ->set_property callback.
274  * appropriate ->atomic_get_property callback. Only legacy drivers should call
281 int drm_object_property_set_value(struct drm_mode_object *obj,  in drm_object_property_set_value()
282 				  struct drm_property *property, uint64_t val)  in drm_object_property_set_value()  argument
284 	int i;  in drm_object_property_set_value()
286 	WARN_ON(drm_drv_uses_atomic_modeset(property->dev) &&  in drm_object_property_set_value()
287 		!(property->flags & DRM_MODE_PROP_IMMUTABLE));  in drm_object_property_set_value()
289 	for (i = 0; i < obj->properties->count; i++) {  in drm_object_property_set_value()
290 		if (obj->properties->properties[i] == property) {  in drm_object_property_set_value()
291 			obj->properties->values[i] = val;  in drm_object_property_set_value()
296 	return -EINVAL;  in drm_object_property_set_value()
300 static int __drm_object_property_get_value(struct drm_mode_object *obj,  in __drm_object_property_get_value()
301 					   struct drm_property *property,  in __drm_object_property_get_value()  argument
304 	int i;  in __drm_object_property_get_value()
306 	/* read-only properties bypass atomic mechanism and still store  in __drm_object_property_get_value()
307 	 * their value in obj->properties->values[].. mostly to avoid  in __drm_object_property_get_value()
310 	if (drm_drv_uses_atomic_modeset(property->dev) &&  in __drm_object_property_get_value()
311 			!(property->flags & DRM_MODE_PROP_IMMUTABLE))  in __drm_object_property_get_value()
312 		return drm_atomic_get_property(obj, property, val);  in __drm_object_property_get_value()
314 	for (i = 0; i < obj->properties->count; i++) {  in __drm_object_property_get_value()
315 		if (obj->properties->properties[i] == property) {  in __drm_object_property_get_value()
316 			*val = obj->properties->values[i];  in __drm_object_property_get_value()
322 	return -EINVAL;  in __drm_object_property_get_value()
326  * drm_object_property_get_value - retrieve the value of a property
327  * @obj: drm mode object to get property value from
328  * @property: property to retrieve
329  * @val: storage for the property value
331  * This function retrieves the softare state of the given property for the given
332  * property. Since there is no driver callback to retrieve the current property
334  * and property.
337  * out property values through the various ->atomic_get_property callbacks.
342 int drm_object_property_get_value(struct drm_mode_object *obj,  in drm_object_property_get_value()
343 				  struct drm_property *property, uint64_t *val)  in drm_object_property_get_value()  argument
345 	WARN_ON(drm_drv_uses_atomic_modeset(property->dev));  in drm_object_property_get_value()
347 	return __drm_object_property_get_value(obj, property, val);  in drm_object_property_get_value()
352 int drm_mode_object_get_properties(struct drm_mode_object *obj, bool atomic,  in drm_mode_object_get_properties()
357 	int i, ret, count;  in drm_mode_object_get_properties()
359 	for (i = 0, count = 0; i < obj->properties->count; i++) {  in drm_mode_object_get_properties()
360 		struct drm_property *prop = obj->properties->properties[i];  in drm_mode_object_get_properties()
363 		if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic)  in drm_mode_object_get_properties()
371 			if (put_user(prop->base.id, prop_ptr + count))  in drm_mode_object_get_properties()
372 				return -EFAULT;  in drm_mode_object_get_properties()
375 				return -EFAULT;  in drm_mode_object_get_properties()
386  * drm_mode_obj_get_properties_ioctl - get the current value of a object's property
391  * This function retrieves the current value for an object's property. Compared
400 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,  in drm_mode_obj_get_properties_ioctl()
406 	int ret = 0;  in drm_mode_obj_get_properties_ioctl()
409 		return -EOPNOTSUPP;  in drm_mode_obj_get_properties_ioctl()
413 	obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type);  in drm_mode_obj_get_properties_ioctl()
415 		ret = -ENOENT;  in drm_mode_obj_get_properties_ioctl()
418 	if (!obj->properties) {  in drm_mode_obj_get_properties_ioctl()
419 		ret = -EINVAL;  in drm_mode_obj_get_properties_ioctl()
423 	ret = drm_mode_object_get_properties(obj, file_priv->atomic,  in drm_mode_obj_get_properties_ioctl()
424 			(uint32_t __user *)(unsigned long)(arg->props_ptr),  in drm_mode_obj_get_properties_ioctl()
425 			(uint64_t __user *)(unsigned long)(arg->prop_values_ptr),  in drm_mode_obj_get_properties_ioctl()
426 			&arg->count_props);  in drm_mode_obj_get_properties_ioctl()
438 	int i;  in drm_mode_obj_find_prop_id()
440 	for (i = 0; i < obj->properties->count; i++)  in drm_mode_obj_find_prop_id()
441 		if (obj->properties->properties[i]->base.id == prop_id)  in drm_mode_obj_find_prop_id()
442 			return obj->properties->properties[i];  in drm_mode_obj_find_prop_id()
447 static int set_property_legacy(struct drm_mode_object *obj,  in set_property_legacy()
451 	struct drm_device *dev = prop->dev;  in set_property_legacy()
454 	int ret = -EINVAL;  in set_property_legacy()
457 		return -EINVAL;  in set_property_legacy()
460 	switch (obj->type) {  in set_property_legacy()
478 static int set_property_atomic(struct drm_mode_object *obj,  in set_property_atomic()
483 	struct drm_device *dev = prop->dev;  in set_property_atomic()
486 	int ret;  in set_property_atomic()
490 		return -ENOMEM;  in set_property_atomic()
493 	state->acquire_ctx = &ctx;  in set_property_atomic()
496 	if (prop == state->dev->mode_config.dpms_property) {  in set_property_atomic()
497 		if (obj->type != DRM_MODE_OBJECT_CONNECTOR) {  in set_property_atomic()
498 			ret = -EINVAL;  in set_property_atomic()
512 	if (ret == -EDEADLK) {  in set_property_atomic()
526 int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,  in drm_mode_obj_set_property_ioctl()
531 	struct drm_property *property;  in drm_mode_obj_set_property_ioctl()  local
532 	int ret = -EINVAL;  in drm_mode_obj_set_property_ioctl()
535 		return -EOPNOTSUPP;  in drm_mode_obj_set_property_ioctl()
537 	arg_obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type);  in drm_mode_obj_set_property_ioctl()
539 		return -ENOENT;  in drm_mode_obj_set_property_ioctl()
541 	if (!arg_obj->properties)  in drm_mode_obj_set_property_ioctl()
544 	property = drm_mode_obj_find_prop_id(arg_obj, arg->prop_id);  in drm_mode_obj_set_property_ioctl()
545 	if (!property)  in drm_mode_obj_set_property_ioctl()
548 	if (drm_drv_uses_atomic_modeset(property->dev))  in drm_mode_obj_set_property_ioctl()
549 		ret = set_property_atomic(arg_obj, file_priv, property, arg->value);  in drm_mode_obj_set_property_ioctl()
551 		ret = set_property_legacy(arg_obj, property, arg->value);  in drm_mode_obj_set_property_ioctl()