Make sure the GPU lock is taken, so that fence completion order matches
seqno order.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index da48819ff2e6..f01bf17a54ef 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1051,6 +1051,12 @@ static struct dma_fence *etnaviv_gpu_fence_alloc(struct etnaviv_gpu *gpu)
{
struct etnaviv_fence *f;
+ /*
+ * GPU lock must already be held, otherwise fence completion order might
+ * not match the seqno order assigned here.
+ */
+ lockdep_assert_held(&gpu->lock);
+
f = kzalloc(sizeof(*f), GFP_KERNEL);
if (!f)
return NULL;
--
2.11.0
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