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

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Message-ID: <BN0PR02MB81426F878B10DDF4AD2F95A896D99@BN0PR02MB8142.namprd02.prod.outlook.com>
Date:   Thu, 9 Feb 2023 11:26:00 +0000
From:   Kalyan Thota <kalyant@....qualcomm.com>
To:     Doug Anderson <dianders@...omium.org>
CC:     "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

Kindly ignore my previous email. Sent too early !!

We have tested the changes on top of tip: https://chromium.googlesource.com/chromiumos/third_party/kernel/+log/refs/heads/chromeos-5.15 + 5 CTM patches ( that you have quoted )
We didn’t see the issue that you have reported on herobrine. Night light always came up on primary display as the reservation with dspp was successful.  Are you seeing any reservation failures for primary display ?

Attached a debug patch, can you share the logs when you see the issue.

Thanks,
Kalyan

>-----Original Message-----
>From: Kalyan Thota
>Sent: Thursday, February 9, 2023 9:47 AM
>To: Doug Anderson <dianders@...omium.org>; 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
>
>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@...cinc.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/

Download attachment "nightlight_debug.patch" of type "application/octet-stream" (2945 bytes)