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path: root/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
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Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h')
-rw-r--r--drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
index b335f3a1e66d..40af8bfb8afa 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
@@ -40,6 +40,7 @@ struct nvkm_fifo {
int nr;
struct list_head chan;
spinlock_t lock;
+ struct mutex mutex;
struct nvkm_event uevent; /* async user trigger */
struct nvkm_event cevent; /* channel creation event */