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[ Upstream commit58979ad633] The dma sync operation needs to be done with DMA_BIDIRECTIONAL when the BO is prepared for both read and write operations. Fixes:a8c21a5451("drm/etnaviv: add initial etnaviv DRM driver") Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>