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Use drm_accurate_vblank_count so we have the full 32 bit to represent the frame counter and userspace has a simpler way of knowing when the counter wraps around. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Robert Foss <robert.foss@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170110134305.26326-3-tomeu.vizoso@collabora.com