+static void vc5_gem_register_pid(struct drm_file *file_priv)
+{
+ struct vc4_file *vc4file = file_priv->driver_priv;
+ struct drm_vc5_file_private *driver_priv = &vc4file->priv;
+
+ if (!driver_priv->pid && !driver_priv->tgid) {
+ driver_priv->pid = task_pid_nr(current);
+ driver_priv->tgid = task_tgid_nr(current);
+ } else {
+ if (driver_priv->pid != task_pid_nr(current))
+ DRM_DEBUG_KMS("wrong pid: %ld, %ld\n",
+ (unsigned long)driver_priv->pid,
+ (unsigned long)task_pid_nr(current));
+ if (driver_priv->tgid != task_tgid_nr(current))
+ DRM_DEBUG_KMS("wrong tgid: %ld, %ld\n",
+ (unsigned long)driver_priv->tgid,
+ (unsigned long)task_tgid_nr(current));
+ }
+}
+
+int vc5_drm_gem_prime_fd_to_handle(struct drm_device *dev,
+ struct drm_file *file_priv, int prime_fd,
+ uint32_t *handle)
+{
+ int ret;
+
+ ret = drm_gem_prime_fd_to_handle(dev, file_priv, prime_fd, handle);
+ if (ret < 0)
+ return ret;
+
+ vc5_gem_register_pid(file_priv);
+
+ return ret;
+}
+