linux-kernel - Re: [PATCH v3 0/4] Reserve DSPPs based on user request

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Message-ID: <CAD=FV=XVaEzyZybZ3JmFnPQkSZyw-3UfD0Mupt_adnnJcYy_iQ@mail.gmail.com>
Date:   Wed, 8 Feb 2023 20:24:08 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Kalyan Thota <kalyant@....qualcomm.com>
Cc:     "Kalyan Thota (QUIC)" <quic_kalyant@...cinc.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "freedreno@...ts.freedesktop.org" <freedreno@...ts.freedesktop.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "robdclark@...omium.org" <robdclark@...omium.org>,
        "swboyd@...omium.org" <swboyd@...omium.org>,
        "Vinod Polimera (QUIC)" <quic_vpolimer@...cinc.com>,
        "dmitry.baryshkov@...aro.org" <dmitry.baryshkov@...aro.org>,
        "Abhinav Kumar (QUIC)" <quic_abhinavk@...cinc.com>,
        "marijn.suijten@...ainline.org" <marijn.suijten@...ainline.org>
Subject: Re: [PATCH v3 0/4] Reserve DSPPs based on user request

Hi,

On Wed, Feb 8, 2023 at 8:16 PM Kalyan Thota <kalyant@....qualcomm.com> wrote:
>
> Hi Doug,
>
> Have you picked the core change to program dspp's  (below) ? the current series will go on top of it.
> https://patchwork.kernel.org/project/linux-arm-msm/patch/1671542719-12655-1-git-send-email-quic_kalyant@quicinc.com/

I didn't pick v11 of it like you link, but I did pick v12 of the same
patch. In my response I said that I picked 5 patches, this series plus
[1] where [1] is:

[1] https://lore.kernel.org/all/1674814487-2112-1-git-send-email-quic_kalyant@quicinc.com/


> Thanks,
> Kalyan
>
> >-----Original Message-----
> >From: Doug Anderson <dianders@...omium.org>
> >Sent: Wednesday, February 8, 2023 10:44 PM
> >To: Kalyan Thota (QUIC) <quic_kalyant@...cinc.com>
> >Cc: dri-devel@...ts.freedesktop.org; linux-arm-msm@...r.kernel.org;
> >freedreno@...ts.freedesktop.org; devicetree@...r.kernel.org; linux-
> >kernel@...r.kernel.org; robdclark@...omium.org; swboyd@...omium.org;
> >Vinod Polimera (QUIC) <quic_vpolimer@...cinc.com>;
> >dmitry.baryshkov@...aro.org; Abhinav Kumar (QUIC)
> ><quic_abhinavk@...cinc.com>; marijn.suijten@...ainline.org
> >Subject: Re: [PATCH v3 0/4] Reserve DSPPs based on user request
> >
> >WARNING: This email originated from outside of Qualcomm. Please be wary of
> >any links or attachments, and do not enable macros.
> >
> >Hi,
> >
> >On Wed, Feb 8, 2023 at 5:42 AM Kalyan Thota <quic_kalyant@...cinc.com>
> >wrote:
> >>
> >> This series will enable color features on sc7280 target which has
> >> primary panel as eDP
> >>
> >> The series removes DSPP allocation based on encoder type and allows
> >> the DSPP reservation based on user request via CTM.
> >>
> >> The series will release/reserve the dpu resources when ever there is a
> >> topology change to suit the new requirements.
> >>
> >> Kalyan Thota (4):
> >>   drm/msm/dpu: clear DSPP reservations in rm release
> >>   drm/msm/dpu: add DSPPs into reservation upon a CTM request
> >>   drm/msm/dpu: avoid unnecessary check in DPU reservations
> >>   drm/msm/dpu: reserve the resources on topology change
> >>
> >>  drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h    |  2 +
> >>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 58 ++++++++++++++++------
> >-------
> >>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      |  2 +
> >>  3 files changed, 37 insertions(+), 25 deletions(-)
> >
> >I tried out your changes, but unfortunately it seems like there's something wrong.
> >:( I did this:
> >
> >1. Picked your 5 patches to the chromeos-5.15 tree (this series plus [1])
> >
> >2. Put them on herobrine villager.
> >
> >3. Booted up with no external display plugged in.
> >
> >4. Tried to enable night light in the ChromeOS UI.
> >
> >5. Night light didn't turn on for the internal display.
> >
> >
> >I also tried applying them to the top of msm-next (had to resolve some small
> >conflicts). Same thing, night light didn't work.
> >
> >
> >I thought maybe this was because the Chrome browser hasn't been updated to
> >properly use atomic_check for testing for night light, so I hacked my herobrine
> >device tree to not mark "mdss_dp" as "okay". Now there's _only_ an eDP display.
> >Same thing, night light didn't work.
> >
> >
> >I could only get night light to work for the internal display if I plugged and
> >unplugged an external display in.
> >
> >
> >Is the above the behavior that's expected right now?
> >
> >
> >[1] https://lore.kernel.org/all/1674814487-2112-1-git-send-email-
> >quic_kalyant@...cinc.com/