From: Thierry Reding <tred...@nvidia.com>

Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
 drivers/gpu/drm/nouveau/nouveau_fence.c | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c 
b/drivers/gpu/drm/nouveau/nouveau_fence.c
index d61fcfb97b09..53178b1471e3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -28,6 +28,7 @@
 
 #include <linux/ktime.h>
 #include <linux/hrtimer.h>
+#include <linux/dma-fence-array.h>
 #include <trace/events/dma_fence.h>
 
 #include <nvif/cl826e.h>
@@ -331,9 +332,9 @@ nouveau_fence_wait(struct nouveau_fence *fence, bool lazy, 
bool intr)
                return 0;
 }
 
-int
-nouveau_fence_sync(struct dma_fence *fence, struct nouveau_channel *chan,
-                  bool intr)
+static int
+__nouveau_fence_sync(struct dma_fence *fence, struct nouveau_channel *chan,
+                    bool intr)
 {
        struct nouveau_fence_chan *fctx = chan->fence;
        struct nouveau_channel *prev = NULL;
@@ -356,6 +357,30 @@ nouveau_fence_sync(struct dma_fence *fence, struct 
nouveau_channel *chan,
        return ret;
 }
 
+int
+nouveau_fence_sync(struct dma_fence *fence, struct nouveau_channel *chan,
+                  bool intr)
+{
+       int ret = 0;
+
+       if (dma_fence_is_array(fence)) {
+               struct dma_fence_array *array = to_dma_fence_array(fence);
+               unsigned int i;
+
+               for (i = 0; i < array->num_fences; i++) {
+                       struct dma_fence *f = array->fences[i];
+
+                       ret = __nouveau_fence_sync(f, chan, intr);
+                       if (ret < 0)
+                               break;
+               }
+       } else {
+               ret = __nouveau_fence_sync(fence, chan, intr);
+       }
+
+       return ret;
+}
+
 void
 nouveau_fence_unref(struct nouveau_fence **pfence)
 {
-- 
2.15.1

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