On Mon, Nov 12, 2018 at 04:47:03PM -0500, Sean Paul wrote:
> From: Sean Paul <seanpaul@xxxxxxxxxxxx>
>
> This patch wraps dpu_core_perf_crtc_release_bw() with modeset locks
> since it digs into the state objects.
>
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index ed84cf44a222..6e636f373950 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -338,7 +338,9 @@ static void dpu_crtc_frame_event_work(struct kthread_work *work)
> /* release bandwidth and other resources */
> trace_dpu_crtc_frame_event_done(DRMID(crtc),
> fevent->event);
> + drm_modeset_lock_all(crtc->dev);
>From the kerneldoc: "This function is deprecated" Please don't use it in
new code :-)
For locking all the state you want lock_all_ctx.
-Daniel
> dpu_core_perf_crtc_release_bw(crtc);
> + drm_modeset_unlock_all(crtc->dev);
> } else {
> trace_dpu_crtc_frame_event_more_pending(DRMID(crtc),
> fevent->event);
> --
> Sean Paul, Software Engineer, Google / Chromium OS
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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