freedreno: fix dEQP-GLES3.functional.fence_sync.*

Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/src/gallium/drivers/freedreno/freedreno_fence.c b/src/gallium/drivers/freedreno/freedreno_fence.c
index c4e2022..e2602cb 100644 (file)
--- a/src/gallium/drivers/freedreno/freedreno_fence.c
+++ b/src/gallium/drivers/freedreno/freedreno_fence.c
@@ -136,6 +136,10 @@ void fd_fence_server_sync(struct pipe_context *pctx,
 
        fence_flush(fence);
 
+       /* if not an external fence, then nothing more to do without preemption: */
+       if (fence->fence_fd == -1)
+               return;
+
        if (sync_accumulate("freedreno", &batch->in_fence_fd, fence->fence_fd)) {
                /* error */
        }