[PATCH 1/3] drm/nouveau: wait for moving fence after pinning

[Christian König]

We actually need to wait for the moving fence after pinning
the BO to make sure that the pin is completed.

Signed-off-by: Christian König <christian.koenig at amd.com>
CC: stable at kernel.org
---
 drivers/gpu/drm/nouveau/nouveau_prime.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c
index 347488685f74..591738545eba 100644
--- a/drivers/gpu/drm/nouveau/nouveau_prime.c
+++ b/drivers/gpu/drm/nouveau/nouveau_prime.c
@@ -93,7 +93,13 @@ int nouveau_gem_prime_pin(struct drm_gem_object *obj)
 	if (ret)
 		return -EINVAL;
 
-	return 0;
+	if (nvbo->bo.moving) {
+		ret = dma_fence_wait(nvbo->bo.moving, true);
+		if (ret)
+			nouveau_bo_unpin(nvbo);
+	}
+
+	return ret;
 }
 
 void nouveau_gem_prime_unpin(struct drm_gem_object *obj)
-- 
2.25.1