+static int get_wave_state(struct device_queue_manager *dqm,
+ struct queue *q,
+ void __user *ctl_stack,
+ u32 *ctl_stack_used_size,
+ u32 *save_area_used_size)
+{
+ struct mqd_manager *mqd;
+ int r;
+
+ dqm_lock(dqm);
+
+ if (q->properties.type != KFD_QUEUE_TYPE_COMPUTE ||
+ q->properties.is_active || !q->device->cwsr_enabled) {
+ r = -EINVAL;
+ goto dqm_unlock;
+ }
+
+ mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
+ if (!mqd) {
+ r = -ENOMEM;
+ goto dqm_unlock;
+ }
+
+ if (!mqd->get_wave_state) {
+ r = -EINVAL;
+ goto dqm_unlock;
+ }
+
+ r = mqd->get_wave_state(mqd, q->mqd, ctl_stack, ctl_stack_used_size,
+ save_area_used_size);
+
+dqm_unlock:
+ dqm_unlock(dqm);
+ return r;
+}