drm/etnaviv: lock BOs after all other submit work is done

Populating objects, adding them to the GPU VM and patching/validating
the command stream might take a lot of CPU time. There is no reason to
hold all object reservations during that time.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c

@@ -514,10 +514,6 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 	if (ret)
 		goto err_submit_objects;
 
-	ret = submit_lock_objects(submit, &ticket);
-	if (ret)
-		goto err_submit_objects;
-
 	if (!etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
 				      relocs, args->nr_relocs)) {
 		ret = -EINVAL;
@@ -532,10 +528,6 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 		}
 	}
 
-	ret = submit_fence_sync(submit);
-	if (ret)
-		goto err_submit_objects;
-
 	ret = submit_pin_objects(submit);
 	if (ret)
 		goto err_submit_objects;
@@ -552,6 +544,14 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 	memcpy(submit->cmdbuf.vaddr, stream, args->stream_size);
 	submit->cmdbuf.user_size = ALIGN(args->stream_size, 8);
 
+	ret = submit_lock_objects(submit, &ticket);
+	if (ret)
+		goto err_submit_objects;
+
+	ret = submit_fence_sync(submit);
+	if (ret)
+		goto err_submit_objects;
+
 	ret = etnaviv_sched_push_job(&ctx->sched_entity[args->pipe], submit);
 	if (ret)
 		goto err_submit_objects;