Re: [PATCH v5 29/32] drm/msm/dpu: enable SmartDMA for the rest of the platforms

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On 14/03/2023 18:35, Abhinav Kumar wrote:


On 3/14/2023 3:58 AM, Dmitry Baryshkov wrote:
On 14/03/2023 07:08, Abhinav Kumar wrote:


On 3/9/2023 4:57 PM, Dmitry Baryshkov wrote:
Enable SmartDMA features for the rest of the platforms where it is
supposed to work.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

I am so glad we split this. Without visual validation check we wouldnt have caught the issues and would have ended up with a blank half screen on our sc7280 CBs on DP.

yes, the r_pipe was indeed mea culpa, when I didn't fully validate the results of a rebase. However this doesn't seem to be an sc7280-specific question. Are there any platform-specific issues with SmartDMA/multirect/planes revealed during testing? In other words, were there any issues which warrant this split?


For sc7280, I validated the foll cases:

Thanks a lot!


1) Basic Chrome UI comes up
2) Validated some browser use-cases and played some youtube videos
3) Validated multiple plug-in/plug-out cases with DP connected
4) IGT test cases with DP connected:
     - kms_atomic
     - kms_atomic_transition
     - kms_pipe_basic_crc

Some notes:

1) I wanted to test 4k with this too but my monitor only supports 4k@60 which is not possible with 24bpp with 2 lanes and due to the HBR3 black screen issue I could not test that so far. But since I have that issue even with 1080P and without these changes, it should have no effect due to this series.

2) I wanted to test some YUV overlay cases but I still cannot find one on chrome. Its always using RGB. Will check with others.

Testing YUV would definitely be a must, especially for the SSPP allocation. Can you possibly check whether contemporaty Xv implementation employs YUV planes? You can try that using `mpv -xo xv` or `mplayer -vo xv`


Let me get some feedback from CrOS folks here instead of just trial and error to find out.


With these two noted, this change and this series has my

Tested-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>


There is no guarantee we will end up finding the YUV case, you could have retained the Tested-by for the efforts which were already put in instead of just blatantly removing it.

I can add it back for v6 (or move sc7280 to the previous patch if you'd prefer that). Also I think the Tested-by should have included the #sc7280 comment. If you don't mind I'll add it.

Only for sc7280 device.

I still cannot give my R-b on this change till others validate visually and ensure things arent broken for them.

If we don't get enough validation and if only sc7280 remains in this change, please re-post it with only that and I will give my R-b too.


--
With best wishes
Dmitry




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