On Wed, Jan 30, 2019 at 8:32 AM Sean Paul <sean@xxxxxxxxxx> wrote: > > From: Sean Paul <seanpaul@xxxxxxxxxxxx> > > The frame_busy mask is used in frame_done event handling, which is not > invoked for async commits. So an async commit will leave the > frame_busy mask populated after it completes and future commits will start > with the busy mask incorrect. > > This showed up on disable after cursor move. I was hitting the "this should > not happen" comment in the frame event worker since frame_busy was set, > we queued the event, but there were no frames pending (since async > also doesn't set that). > > Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > index 36158b7d99cd..1a81c4daabc9 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > @@ -1558,8 +1558,14 @@ static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc, > if (!ctl) > continue; > > - if (phys->split_role != ENC_ROLE_SLAVE) > + /* > + * This is cleared in frame_done worker, which isn't invoked > + * for async commits. So don't set this for async, since it'll > + * roll over to the next commit. > + */ > + if (!async && phys->split_role != ENC_ROLE_SLAVE) > set_bit(i, dpu_enc->frame_busy_mask); > + > if (!phys->ops.needs_single_flush || > !phys->ops.needs_single_flush(phys)) > _dpu_encoder_trigger_flush(&dpu_enc->base, phys, 0x0, > -- > Sean Paul, Software Engineer, Google / Chromium OS > Reviewed-by: Fritz Koenig <frkoenig@xxxxxxxxxx> > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
