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Commit b27734c2 authored by Lucas Stach's avatar Lucas Stach
Browse files

drm/etnaviv: add lockdep assert to fence allocation 



Make sure the GPU lock is taken, so that fence completion order matches
seqno order.

Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
parent 65d1086c

drivers/gpu/drm/etnaviv/etnaviv_gpu.c

+6 −0
Original line number Diff line number Diff line
@@ -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;